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  • Humans  (20,070)
  • United States  (5,941)
  • Biochemistry and Biotechnology
  • Models, Molecular
  • ddc:330
  • American Association for the Advancement of Science (AAAS)  (24,120)
  • Springer  (38)
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  • 1
    Electronic Resource
    Electronic Resource
    Understanding agri-food networks as social relations (2000)
    Springer
    Agriculture and human values 17 (2000), S. 279-283 
    Details
    ISSN: 1572-8366
    Keywords: Agri-food network ; Gender ; Sustainable agriculture ; United States
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Actor network theory and supply chainmanagement theory provide suggestive researchdirections for understanding regional agri-foodnetworks. These theories claim that relationshipsbased upon trust and cooperation are critical to thestrength and vitality of the network. This means thatexploring and detailing these relationships among thesuppliers, producers, workers, processors, brokers,wholesalers, and retailers within specific regionalgeographies of these networks are critical forfurthering cooperation and trust. Key areas ofcooperation include resource sharing andapprenticeship programs. Employing food networks as akey unit of contextual analysis will deepen ourunderstanding of how to enhance their resiliency andvibrancy. Important questions can be raised about thedifference gender makes for farmers, brokers,entrepreneurs, and workers in local food networks.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1007692303118
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  • 2
    Electronic Resource
    Electronic Resource
    Integrating nineteenth-century Canadian and American census data sets (1996)
    Springer
    Computers and the humanities 30 (1996), S. 381-392 
    Details
    ISSN: 1572-8412
    Keywords: comparative demographic history ; census ; data set integration ; ICAPUMS ; IPUMS ; coding schemes ; Canada ; United States
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Media Resources and Communication Sciences, Journalism
    Notes: Abstract The comparative use of census data is a useful way to study social characteristics across national boundaries. However, truly comparative demographic history is not possible without fully integrating separate census data, uniting multiple data files with a common set of comparably coded variables. This paper describes the integration of the 1871 Canadian census public use sample with similar samples of the 1850 and 1880 American censuses to form the Integrated Canadian-American Public Use Microdata Series (ICAPUMS). These data sets lent themselves well to integration because of their strong similarities in sampling design, data collection and data organization. Consistency in the availability and treatment of variables also eased integration of the samples, although the harmonization of occupation variables presented significant challenges. The ICAPUMS features a general household relationship variable which allows us to examine household structure across the two countries and three years. The paper concludes by proposing some general principles of census data set integration. This integrated data set is now available to researchers on the website of the University of Minnesota Historical Census Projects (www.hist.umn.edu/~ipums).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00054021
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  • 3
    Electronic Resource
    Electronic Resource
    The compositional distribution of coding sequences and DNA molecules in humans and murids (1988)
    Springer
    Journal of molecular evolution 27 (1988), S. 311-320 
    Details
    ISSN: 1432-1432
    Keywords: Genome composition ; Coding sequences ; Isochores ; Humans ; Murids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The compositional distributions of coding sequences and DNA molecules (in the 50-100-kb range) are remarkably narrower in murids (rat and mouse) compared to humans (as well as to all other mammals explored so far). In murids, both distributions begin at higher and end at lower GC values. A comparison of homologous coding sequences from murids and humans revealed that their different compositional distributions are due to differences in GC levels in all three codon positions, particularly of genes located at both ends of the distribution. In turn, these differences are responsible for differences in both codon usage and amino acids. When GC levels at first+second codon positions and third codon positions, respectively, of murid genes are plotted against corresponding GC levels of homologous human genes, linear relationships (with very high correlation coefficients and slopes of about 0.78 and 0.60, respectively) are found. This indicates a conservation of the order of GC levels in homologous genes from humans and murids. (The same comparison for mouse and rat genes indicates a conservation of GC levels of homologous genes.) A similar linear relationship was observed when plotting GC levels of corresponding DNA fractions (as obtained by density gradient centrifugation in the presence of a sequence-specific ligand) from mouse and human. These findings indicate that orderly compositional changes affecting not only coding sequences but also noncoding sequences took place since the divergence of murids. Such directional fixations of mutations point to the existence of selective pressures affecting the genome as a whole.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02101193
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  • 4
    Electronic Resource
    Electronic Resource
    Phylogenetic evidence for multiple Alu source genes (1992)
    Springer
    Journal of molecular evolution 35 (1992), S. 7-16 
    Details
    ISSN: 1432-1432
    Keywords: Alu source genes ; Humans ; Gorillas ; Retrotransposition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A member of the young PV Alu sub-family is detected in chimpanzee DNA showing that the PV subfamily is not specific to human DNA. This particular Alu is absent from the orthologous loci in both human and gorilla DNAs, indicating that PV subfamily members transposed within the chimpanzee lineage following the divergence of chimpanzee from both gorilla and human. These findings and previous reports describing the transpositional activity of other Alu sequences within the human, gorilla, and chimpanzee lineages provide phylogenetic evidence for the existence of multiple Alu source genes. Sequences surrounding this particular Alu resemble known transcriptional control elements associated with RNA polymerase III, suggesting a mechanism by which cis-acting elements might be acquired upon retrotransposition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00160256
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  • 5
    Electronic Resource
    Electronic Resource
    An analysis of codon usage in mammals: Selection or mutation bias? (1991)
    Springer
    Journal of molecular evolution 33 (1991), S. 442-449 
    Details
    ISSN: 1432-1432
    Keywords: Humans ; Mouse ; Rat ; Codon usage ; Mutation bias ; Selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A new statistical test has been developed to detect selection on silent sites. This test compares the codon usage within a gene and thus does not require knowledge of which genes are under the greatest selection, that there exist common trends in codon usage across genes, or that genes have the same mutation pattern. It also controls for mutational biases that might be introduced by the adjacent bases. The test was applied to 62 mammalian sequences, the significant codon usage biases were detected in all three species examined (humans, rats, and mice). However, these biases appear not to be the consequence of selection, but of the first base pair in the codon influencing the mutation pattern at the third position.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02103136
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  • 6
    Electronic Resource
    Electronic Resource
    The evolution of two west African populations (1992)
    Springer
    Journal of molecular evolution 34 (1992), S. 336-344 
    Details
    ISSN: 1432-1432
    Keywords: Humans ; Mitochondrial DNA ; Nuclear polymorphisms ; Heteroplasmy ; Genetic differentiation ; Sickle cell ; Rain forest refuges
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The identification of genetically coherent populations is essential for understanding human evolution. Among the culturally uniform ethnic groups of west Africa, there are two geographically distinct populations with high frequencies of sickle-cell hemoglobin (HbS). Although the HbS mutation in each group is found on distinguishable chromosomes 11, these populations have been assumed to be parts of a single population. Analysis of mitochondrial DNA (mtDNA) in these populations demonstrated that the two populations identified by alternative chromosomes 11 bearing HbS have distinct distributions of mitochondrial genotypes, i.e., they are maternally separate. These studies also showed that, contrary to expectation, the mtDNA of some individuals is heteroplasmic. For nuclear loci, a comparison of the frequency of alternative alleles established that these populations are genetically distinct. Both the mitochondrial and nuclear data indicate that these populations have been separate for approximately 50,000 years. Although HbS in the two populations is usually attributed to recent, independent mutations, the duration of the separation and the observed geographic distribution of the population allow for the possibility of an ancient origin of HbS. Assuming an ancient mutation and considering the known biogeography, we suggest that HbS protected selected populations from malaria in rain forest refuges during the most recent ice age.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00160241
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  • 7
    Electronic Resource
    Electronic Resource
    Stratigraphy of total metals in PIRLA sediment cores (1992)
    Springer
    Journal of paleolimnology 7 (1992), S. 191-214 
    Details
    ISSN: 1573-0417
    Keywords: geochemistry ; metals ; lake sediments ; paleolimnology ; United States
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences
    Notes: Abstract Sediment cores from 30 low-alkalinity lakes in northern New England (NE), New York (NY), the northern Great Lakes States (NGLS) of Minnesota, Michigan, and Wisconsin, and Florida (FL) have been dated by 210Pb and analyzed for water and organic content, eight major elements (Al, Ti, Fe, Mn, Ca, Mg, Na, K) plus four trace metals (Pb, Zn, Cu, and V). Variations in the percentages of major elements through time are dominated by long-term independent variations in the abundance of SiO2, FeO, and to a lesser extent Ca and Al. Additional variations are caused by varying proportions of inorganic matter. Major variations in chemistry are generally unrelated to documented distrubances in the watersheds; most disturbances are minor fires or selective logging. Accelerated accumulation of Pb from atmospheric sources into sediment first occurs in sediment dated between 1800 and 1850 in NY and NE, slightly later in the NGLS region, and about 1900 in FL. Modern accumulation rates in all areas are comparable (ca. 1 to 4 μg cm−2 yr−1). Accumulation rates of Pb in some lakes have declined significantly from 1975 to 1985. Atmospheric deposition of anthropogenic Zn and Cu is also indicated by generally increasing accumulation rates in sediment cores, but the record is not as clear nor are chemical profiles in all lakes parallel to the trends in atmospheric emissions inferred on the basis of fossil fuel consumption, smelting, and other industrial activities. Inter-lake variations in profiles of Cu and Zn are large. Vanadium accumulation rates increase by the 1940s in NY and NE, but not until the 1950s in the NGLS region. This timing correlates with regional trends in the combustion of fuel oil, a major source of atmospheric V. Acidification of some of the lakes is suggested by decreases in the concentration and accumulation rates of Mn, Ca, and Zn in recent sediment, relative to other elements of catchment origin. The decreases generally occur slightly before the onset of acidification as indicated by diatoms. Increased sediment accumulation rates for Fe may indicate the acidification of watershed soils. The use of the accumulation rate of TiO2 as an indicator of rates of erosion and for normalization of trace metal accumulation rates is in question for lakes where the flux of TiO2 from the atmosphere varies and is a significant fraction of the total flux of TiO2 to the sediment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00181714
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  • 8
    Electronic Resource
    Electronic Resource
    The effect of airline pilot characteristics on perceptions of job safety risks (1989)
    Springer
    Journal of risk and uncertainty 2 (1989), S. 335-351 
    Details
    ISSN: 1573-0476
    Keywords: aeronautics-commercial ; safety ; United States ; employees ; perceptions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract In a large cross-sectional sample, commercial airline pilots in the United States were asked for their perceptions of job safety hazards. Regression techniques are employed to investigate the relationship between these perceptions and both the length of tenure of pilots and their specific employer within the industry. The latter is found to have a far more significant impact on risk perception. No evidence is found for a learning curve of job risk with respect to experience. Pilots' assessments of inadequacies in training and aircraft maintenance are found to be significantly related to the financial health of their employer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00356860
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  • 9
    Electronic Resource
    Electronic Resource
    A survey of dermatophytes from human patients in the United States from 1985 to 1987 (1991)
    Springer
    Mycopathologia 114 (1991), S. 117-126 
    Details
    ISSN: 1573-0832
    Keywords: dermatophytes ; survey ; United States ; humans ; 1985/87
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A survey of dermatophytes isolated from patients seeking medical advice was made from 1985 to 1987 in the United States. The survey included 54 locations with data from 45 cities and one state. Listing of the isolated dermatophytes and the frequency given by percentage of the total follows: Trichophyton rubrum 54.8%, T. tonsurans 31.3%, T. mentagrophytes 6.0%, Microsporum canis 4.0%, Epidermophyton floccosum 2.0%, M. gypseum 0.6%, and T. verrucosum 0.2%. Out of a total of 14,696 isolates M. audouinii was cultured 13 times, T. violaceum 12 times, M. nanum 6 times, T. terrestre 4 times, and T. soudanense twice. Single isolations were made of M.fulvum, M. ferrugineum and T. schoenleinii. Collection of dermatophyte data in Tucson, Arizona, began in 1966. In 1987, the first case of tinea capitis caused by T. tonsurans was observed. Other isolates of this organism as the cause of tinea capitis were made in this city during that year. These infections were in black children. With the recent growth of Tucson, the percentage of blacks in the population increased and this pathogen was introduced into the general population.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00436431
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  • 10
    Electronic Resource
    Electronic Resource
    Agaricus Bisporus: An assessment of its carcinogenic potency (1993)
    Springer
    Mycopathologia 124 (1993), S. 73-77 
    Details
    ISSN: 1573-0832
    Keywords: Assessment ; Cancer ; Humans ; Hydrazines ; Mushroom
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract This assessment focuses on the concentrations of some chemicals present in theAgaricus bisporus mushroom, the cancer-inducing doses of these chemicals or mushroom used in the animal experiments, the total amounts of these chemicals or mushroom needed to induce cancer in these mice, and the estimated total amounts of these chemicals or mushroom needed to induce cancer in humans. By adding the estimated amounts of chemicals needed to induce cancer and by comparing it with the amount of raw mushroom needed to induce the same effect, it becomes obvious that we have accounted for less than 2% of the carcinogenic components of theAgaricus bisporus mushroom. Since some unavailable data handicapped this assessment, it should be regarded as tentative and subject to further adjustment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01103105
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  • 11
    Electronic Resource
    Electronic Resource
    What is the Place of Christian Wolff in the History of the Social Sciences? (1997)
    Springer
    European journal of law and economics 4 (1997), S. 147-232 
    Details
    ISSN: 1572-9990
    Keywords: Methodology ; history of social science ; economists ; political economy ; history ; historical school ; Germany ; England ; United States ; historicism ; economics ; philosophy ; Wolff
    Source: Springer Online Journal Archives 1860-2000
    Topics: Law , Economics
    Notes: Abstract This paper explores the place of Christian Wolff in the history of social science in English. The "Introduction" places Wolff in the context of the pre-history of modern social science. Samples are given of the great range of subjects on which he wrote. The importance of the German context is stressed. The second part is devoted to a sample of what the literature contains by and about Wolff. It emphasizes philosophy and science. Part three is a survey of works in the history of the social sciences that mention Wolff. He has a substantial place in political science and psychology, a much smaller place in economics and history, virtually none in anthropology, geography, and sociology. In the applied social sciences, he is found in the history of education. Possible reasons are given. Part four is devoted to the relationships of philosophy and philosophers in the pre-history of the social sciences. They were important in several different ways because they both shaped and reflected how many people thought about science and social problems. The “Summary and Conclusion” describes the present status. His contributions are summarized. He was a pivotal figure in the making of the German conception of social science. This is a preliminary study emphasizing the issues and problems that a more detailed examination would require. Several conventional judgments are challenged and possibilities for further research suggested.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008679326854
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  • 12
    Electronic Resource
    Electronic Resource
    Seeing Patterns: Models, Visual Evidence and Pictorial Communication in the Work of Barbara McClintock (1999)
    Springer
    Journal of the history of biology 32 (1999), S. 163-195 
    Details
    ISSN: 1573-0387
    Keywords: cytogenetics ; diagrams ; genetics ; illustrations ; McClintock ; models ; molecular biology ; photographs ; twentieth-century ; United States
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , History
    Notes: Abstract Barbara McClintock won the Nobel Prize in 1983 for her discovery of mobile genetic elements. Her Nobel work began in 1944, and by 1950 McClintock began presenting her work on “controlling elements.” McClintock performed her studies through the use of controlled breeding experiments with known mutant stocks, and read the action of controlling elements (transposons) in visible patterns of pigment and starch distribution. She taught close colleagues to “read” the patterns in her maize kernels, “seeing” pigment and starch genes turning on and off. McClintock illustrated her talks and papers on controlling elements or transposons with photographs of the spotted and streaked maize kernels which were both her evidence and the key to her explanations. Transposon action could be read in the patterns by the initiated, but those without step by step instruction by McClintock or experience in maize often found her presentations confusing. The photographs she displayed became both McClintock's means of communication, and a barrier to successful presentation of her results. The photographs also had a second and more subtle effect. As images of patterns arrived at through growth and development of the kernel, they highlight what McClintock believed to be the developmental consequences of transposition, which in McClintock's view was her central contribution, over the mechanism of transposition, for which she was eventually recognized by others. Scientific activities are extremely visual, both at the sites of investigation and in communication through drawings, photographs, and movies. Those visual messages deserve greater scrutiny by historians of science.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1004420726771
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  • 13
    Electronic Resource
    Electronic Resource
    Sensitivity of secular trends in precipitation data to observational errors (1990)
    Springer
    Pure and applied geophysics 134 (1990), S. 1-12 
    Details
    ISSN: 1420-9136
    Keywords: Precipitation ; trends ; climate changes ; data errors ; United States ; rainfall
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract There has been considerable interest in estimating secular trends in precipitation data in various regions of the world. It is therefore important to ascertain the manner in which errors of observation affect estimated trends. For this purpose we have compared trends at 1219 stations in the contiguous United States for two data sets: (a) original observations, also called “raw” observations, and (b) the observations, adjusted to compensate for suspected errors. The adjustments were made at the National Climate Data Center, Asheville (Quinlan et al., 1987;karl andWilliams, 1987), In order to focus on the effects of observational errors we attempted to avoid the effects of filling of missing data by limiting the analysis to the period 1940–1984 for which the number of missing values is much smaller than earlier periods. A least-square linear regression was performed on the raw and adjusted data for each station and the slopes of the fitted lines were compared. The comparison was made for monthly, seasonal and annual precipitation values. The results for annual precipitation showed that 23 percent of the stations have trends of opposite signs in the raw and adjusted data. The trends were identical in annual data at only 11 percent of the stations. When monthly data are combined to form seasonal and annual averages the magnitude of the difference between the slopes of the adjusted and the raw observations generally increases, indicating that the errors in the individual monthly observations are correlated. When the station data were averaged to obtain state-wide averages, the effects of the errors became less pronounced in most of the states. These results indicate that obtaining trends in precipitation from station data is a more difficult problem than has been realized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00878076
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  • 14
    Electronic Resource
    Electronic Resource
    The linear relation between temperatures based on the silica content of groundwater and regional heat flow: A new heat flow map of the United States (1978)
    Springer
    Pure and applied geophysics 117 (1978), S. 227-241 
    Details
    ISSN: 1420-9136
    Keywords: Silica geothermometer ; Regional heat flow ; Geothermal energy ; Ground water circulation ; United States
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Application of the silica geothermometer to over 70,000 non-thermal groundwaters from the United States has shown that there is a correlation between the average silica geotemperatures for a region (T SiO2 in °C) and the known regional heat flow (q in mW m−2) of the form: 1 $$TSiO_2 = mq + b$$ wherem andb are constants determined to be 0.67°C m2 mW−1 and 13.2°C respectively. The physical significance of ‘b’ is the mean annual air temperature. The slope ‘m’ is related to the minimum average depth to which the groundwaters may circulate. This minimum depth is estimated to be between 1.4 and 2.0 km depending on the rock type. A preliminary heat flow map based on equation (1) is presented using theT SiO2 for new estimates of regional heat flow where conventional data are lacking. Anomalously high localT SiO2 values indicate potential geothermal areas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00879749
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  • 15
    Electronic Resource
    Electronic Resource
    The solar wind and human birth rate: A possible relationship due to magnetic disturbances (1990)
    Springer
    International journal of biometeorology 34 (1990), S. 42-48 
    Details
    ISSN: 1432-1254
    Keywords: Briths ; Humans ; Solar wind ; Geomagnetism ; Melatonin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract Data obtained from the literature on the annual pattern of human conceptions and plasma melatonin at high latitudes indicated that simple annual rhythms do not exist. Instead, prominent semiannual rhythms are found, with equinoctial troughs and solsticial peaks. A prominent semiannual environmental event is the magnetic disturbance induced by the solar wind. The semiannual magnetic disturbances are worldwide, but most pronounced in the auroral zones where the corpuscular radiation enters the atmosphere. Magnetic indices that predominantly reflect these events were obtained from the literature and correlated with the melatonin and conception data. Significant and inverse correlations were found for Inuit conceptions and the melatonin data. The correlations obtained for 48 contiguous states of the United States indicated that only the extreme northern states exhibited this relationship. These data were compared with a previous correlational study in the United States which established that sunshine was correlated with conceptions in the middle latitude and southern states. An hypothesis of dual control by electromagnetic and magnetic energies is proposed: melatonin is a progonadal hormone in humans controlled by both factors, depending on their relative strength. Other studies are reviewed regarding the possible factors involved in determining the annual pattern of human conceptions. Demographic studies of geographic variation in temporal patterns of conceptions, with particular regard to variations of the magnetic fields on the earth's surface, may provide some insight into the efficacy of these different factors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01045819
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  • 16
    Electronic Resource
    Electronic Resource
    Culture and the environment in the United States (1985)
    Springer
    Environmental management 9 (1985), S. 161-172 
    Details
    ISSN: 1432-1009
    Keywords: Environment ; Beliefs ; Values ; Paradigms ; Culture ; Attitudes ; Social change ; Political change ; United States
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The beliefs of Americans about the proper relationship between humans and their environment were profoundly affected by waves of immigration from Europe. Immigrants valued ownership of land, individuality, freedom, domination of nature, and technological development. These themes remain strong today as centerpieces of the American dominant social paradigm (DSP). That DSP has been reexamined and found wanting by an increasing proportion of Americans. This departure from the old DSP has progressed further among the public than among the elite who have a greater stake in preserving the status quo. Environmentalists constitute a vanguard trying to lead the people to a new, more environmentally oriented social paradigm. The beliefs of the old DSP and the new environmental paradigm (NEP) are contrasted in Table 2. Briefly, the NEP advocates stress love of nature rather than domination of it; compassion for other peoples, future generations, and other species; planning to avoid risk; limits to growth; fundamental social change; and a new structuring of politics. These two worldviews are likely to be in vigorous conflict for several decades in the USA. Social learning, spurred by deterioration of the old ways, is likely to lead Americans to a new perspective on their relationship to nature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01867116
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  • 17
    Electronic Resource
    Electronic Resource
    Health benefits due to reductions of CO levels (1977)
    Springer
    Environmental management 1 (1977), S. 131-137 
    Details
    ISSN: 1432-1009
    Keywords: CO Reduction ; Health Benefits ; United States ; Air Quality ; COHb ; Automotive CO emissions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A method is presented by which an upper limit of the adverse health effect of existing ambient CO concentrations on the U. S. population can be estimated. The method is based upon estimating the primary human physiological response to CO concentrations (COHb%) for the population in terms of person-hour-COHb〉1.5% resulting from the time exposure of the population to CO concentrations in excess of the federally designated ambient air quality standard. The estimates of person-hour-COHb〉1.5% are for exposures only to ambient CO concentrations and do not take into account the additional CO exposure for people who smoke or have occupational exposures. We estimate that there were up to 30.9×109 person-hour-COHb〉1.5% in 1973 due to ambient concentrations in excess of the ambient 8-hour CO standard, with approximately 5×109 person-hour-COHb〉1.5% occurring West of the Continental Divide and 25.9〉109 person-hour-COHb〉1.5% occuring East of the Continental Divide; of these 21.3×109 personhour-COHb〉1.5% occurred in New York City. It was also estimated that a 60% reduction in 1973 ambient concentrations of CO (corresponding to an automotive emmision standard of less than 15 g/mile) would be needed to reduce to zero the person-hour-COHb〉1.5%. The maximum estimated effects on the U.S. population of increases in ambient CO concentration above 1973 levels are also presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01866103
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  • 18
    Electronic Resource
    Electronic Resource
    The U.S. allowance trading system for sulfur dioxide: An update on market experience (1995)
    Springer
    Environmental and resource economics 5 (1995), S. 115-129 
    Details
    ISSN: 1573-1502
    Keywords: Emission trading ; United States ; sulfur dioxide ; air pollution ; costs ; cost-effectiveness
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Economics
    Notes: Abstract In 1990, the U.S. Congress passed legislation that amended the Clean Air Act to create a new program to mitigate the effects of acid deposition in the U.S. through emission reductions of sulfur dioxide (SO2) and nitrogen oxides (NOx) at electric utility plants across the country. The SO2 reductions, totalling a 40% reduction nationally from 1980 levels or a 10 million ton reduction annually, are achieved largely through an emission trading system, the largest program of its kind designed to date. This trading system has the potential to save up to half of the compliance costs associated with more traditional source-by-source emission limit programs. This paper briefly discusses background on the acid rain issue in the United States, and the principal features of the program, including: a permanent cap on utility emissions of SO2 beginning in 2010, decision to grant up-front allocation of emission credits to reduce individual approvals of trades, the use of continuous emission monitors and automatic penalties to ensure compliance, and integration of the Acid Rain program requirements with other Clean Air Act programs. The paper also discusses the development of the allowance trading market to date, including the types of compliance options chosen and quantity and type of emissions trading being conducted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00693019
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  • 19
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    Terrestrial Carbon Dynamics: Case Studies in the Former Soviet Union, the Conterminous United States, Mexico and Brazil (1997)
    Springer
    Mitigation and adaptation strategies for global change 1 (1997), S. 363-383 
    Details
    ISSN: 1573-1596
    Keywords: carbon flux ; land use ; former Soviet Union ; United States ; Mexico ; Brazil ; forests
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: Abstract This research assessed land-use impacts on C flux at a national level in four countries: former Soviet Union, United States, Mexico and Brazil, including biotic processes in terrestrial ecosystems (closed forests, woodlands, and croplands), harvest of trees for wood and paper products, and direct C emission from fires. The terrestrial ecosystems of the four countries contain approximately 40% of the world's terrestrial biosphere C pool, with the FSU alone having 27% of the global total. Average phytomass C densities decreased from south to north while average soil C densities in all three vegetation types generally increased from south to north. The C flux from land cover conversion was divided into a biotic component and a land-use component. We estimate that the total net biotic flux (Tg/yr) was positive (= uptake) in the FSU (631) and the U.S. (332), but negative in Mexico (−37) and Brazil (−16). In contrast, total flux from land use was negative (= emissions) in all four countries (TgC/yr): FSU −343; U.S. −243; Mexico −35; and Brazil −235. The total net effect of the biotic and land-use factors was a C sink in the FSU and the U.S. and a C source in both Brazil and Mexico.
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    URL: http://dx.doi.org/10.1023/B:MITI.0000027388.65532.60
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    Implementation of periodic acid-thiosemicarbazide-silver proteinate staining for ultrastructural assessment of muscle glycogen utilization during exercise (1985)
    Springer
    Cell & tissue research 242 (1985), S. 229-232 
    Details
    ISSN: 1432-0878
    Keywords: Skeletal muscles ; Ultrastructure ; Exercise ; Glycogen ; Humans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Distribution of glycogen particles in semithin and ultrathin sections of biopsy samples from human muscles subjected to either short- or long-term running were investigated using PAS and Periodic Acid-ThioSemiCarbazide-Silver Proteinate (PA-TSC-SP) staining methods. Glycogen particles were predominantly found immediately under the sarcolemma or aligned along the myofibrillar Iband. After long-term exhaustive exercise type-1 fibers with a few or no glycogen particles in the core of the fibers were frequently observed. The subsarcolemmal glycogen stores of these “depleted” type-1 fibers were about three times as large as after exhaustive short-time exercise. Another indication of utilization of subsarcolemmal glycogen stores during anaerobic exercise was that many particles displayed a pale, rudimentary shape. This observation suggests fragmental metabolization of glycogen. Thus, depending on type of exercise and type of fiber differential and sequential glycogen utilization patterns can be observed.
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    URL: http://dx.doi.org/10.1007/BF00225582
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    Alien plant species composition and associations with anthropogenic disturbance in North American forests (1998)
    Springer
    Plant ecology 139 (1998), S. 49-62 
    Details
    ISSN: 1573-5052
    Keywords: Alien species ; Anthropogenic disturbance ; Biological invasions ; Forests ; Ground vegetation ; United States
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A probability-based sampling scheme was used to survey plant species composition in forests of 16 states in seven geopolitical regions of the United States (California, Colorado, Minnesota, and parts of the Pacific Northwest, Southeast, Mid-Atlantic, and Northeast) in 1994. The proportion of alien species relative to the total species number and to canopy cover in the ground stratum (0–0.6 m height) was evaluated in 279 plots. Visually evident anthropogenic disturbances (e.g., artificial regeneration, logging, prescribed burning, and grazing by livestock), if any, were recorded on each plot. In each of the seven regions we quantified (1) the percentage of the number of species and total cover comprised of alien species, (2) the difference in these percentages for disturbed and undisturbed plots, and (3) the origin or native range for the alien species. The percentage of alien species ranged from approximately 4.5% (Colorado) to approximately 13.2% (California). The percentage of alien species cover ranged from approximately 1.5% in Colorado to 25% in California. In five regions, species introduced from temperate Eurasia comprised the largest proportion of alien species and cover. In the Southeast, species introduced from far eastern and subtropical Asia dominated the alien flora. In the Mid-Atlantic, the majority of alien species was Eurasian and the majority of alien species cover consisted of far eastern and subtropical Asian species. The proportion of plots in which at least one alien species was recorded was significantly higher in disturbed than undisturbed plots in the Southeast and marginally significantly higher ($p=0.053$) in the Northeast. These results are consistent with other published studies that indicate that anthropogenic disturbance affects the structure and composition of both the ground stratum and upper canopy of forest habitats. In other regions, however, no significant differences were found.
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    URL: http://dx.doi.org/10.1023/A:1009730702302
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    US Fish and Wildlife Service 1979 wetland classification: A review (1995)
    Springer
    Plant ecology 118 (1995), S. 139-152 
    Details
    ISSN: 1573-5052
    Keywords: Classification ; Definition ; United States ; Wetland
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In 1979 the US Fish and Wildlife Service published and adopted a classification of wetlands and deepwater habitats of the United States. The system was designed for use in a national inventory of wetlands. It was intended to be ecologically based, to furnish the mapping units needed for the inventory, and to provide national consistency in terminology and definition. We review the performance of the classification after 13 years of use. The definition of wetland is based on national lists of hydric soils and plants that occur in wetlands. Our experience suggests that wetland classifications must facilitate mapping and inventory because these data gathering functions are essential to management and preservation of the wetland resource, but the definitions and taxa must have ecological basis. The most serious problem faced in construction of the classification was lack of data for many of the diverse wetland types. Review of the performance of the classification suggests that, for the most part, it was successful in accomplishing its objectives, but that problem areas should be corrected and modification could strengthen its utility. The classification, at least in concept, could be applied outside the United States. Experience gained in use of the classification can furnish guidance as to pitfalls to be avoided in the wetland classification process.
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    URL: http://dx.doi.org/10.1007/BF00045196
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    Preliminary distributional analysis of US endangered bird species (2000)
    Springer
    Biodiversity and conservation 9 (2000), S. 1313-1322 
    Details
    ISSN: 1572-9710
    Keywords: BIOCLIM ; birds ; conservation strategies ; ecological niche modeling ; endangered species ; GARP ; United States
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A first exploration of applications of ecological niche modeling and geographic distributional prediction to endangered species protection is developed. Foci of richness of endangered bird species are identified in coastal California and along the southern fringe of the United States. Species included on the Endangered Species List on the basis of peripheral populations inflate these concentrations considerably. Species without protection in the US National Park System are focused particularly in peninsular Florida. Application of this methodology to additional taxa and regions holds promise for diverse conservation applications.
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    URL: http://dx.doi.org/10.1023/A:1008924322405
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    Probabilistic methodology for estimation of undiscovered petroleum resources in play analysis of the United States (1992)
    Springer
    Natural resources research 1 (1992), S. 153-162 
    Details
    ISSN: 1573-8981
    Keywords: Oil and gas assessment ; Analytic probability ; Play analysis ; United States
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract A geostochastic system called FASPF was developed by the U.S. Geological Survey for their 1989 assessment of undiscovered petroleum resources in the United States. FASPF is a fast appraisal system for petroleum play analysis using a field-size geological model and an analytic probabilistic methodology. The geological model is a particular type of probability model whereby the volumes of oil and gas accumulations are modeled as statistical distributions in the form of probability histograms, and the risk structure is bilevel (play and accumulation) in terms of conditional probability. The probabilistic methodology is an analytic method derived from probability theory rather than Monte Carlo simulation. The resource estimates of crude oil and natural gas are calculated and expressed in terms of probability distributions. The probabilistic methodology developed by the author is explained. The analytic system resulted in a probabilistic methodology for play analysis, subplay analysis, economic analysis, and aggregation analysis. Subplay analysis included the estimation of petroleum resources on non-Federal offshore areas. Economic analysis involved the truncation of the field size with a minimum economic cutoff value. Aggregation analysis was needed to aggregate individual play and subplay estimates of oil and gas, respectively, at the provincial, regional, and national levels.
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    URL: http://dx.doi.org/10.1007/BF01782269
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    The destruction of aquatic vegetation by carp (1983)
    Springer
    Hydrobiologia 106 (1983), S. 37-41 
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    ISSN: 1573-5117
    Keywords: carp ; aquatic vegetation ; enclosure experiment ; Southern France ; United States
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The destruction of submerged vegetation by common carp, Cyprinus carpio L. is tested in six enclosures with different biomass (kg ha−1) of carp in a marsh of the Camargue, southern France. After 71 days, a strong negative relationship was found between the biomass of carp and the amount of aquatic vegetation present in the enclosures. The results are compared with similar studies in the United States. The absence of problem of vegetation destruction by carp in Europe, in contrast to North America, may be explained by lower biomass of these populations in Europe, and by a higher weight of carp in North America.
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    URL: http://dx.doi.org/10.1007/BF00016414
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    Colonization and succession of benthic macroinvertebrates in a new reservoir (1984)
    Springer
    Hydrobiologia 112 (1984), S. 27-39 
    Details
    ISSN: 1573-5117
    Keywords: benthic macroinvertebrates ; colonization ; succession ; reservoir ; impoundment ; mainstream ; United States ; Southeast
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The purpose of this study was to examine the colonization and succession of benthic macroinvertebrates in shallow areas (〈7 m) of Lake Anna, a new mainstream impoundment in the southeastern U.S.A. Benthic macroinvertebrates were sampled for the first three years after filling by means of artificial substrates placed on the bottom and retrieved with SCUBA. Lake Anna was well colonized by benthic macroinvertebrates during the summer season immediately after impoundment. The total density of organisms increased in each of the first three years. Major changes in the fauna occurred between the first and second years, but the changes between the second and third years were more subtle. The fauna could be divided into two distinct groups based upon the time when the organisms were most consistently abundant. The first colonizers appeared to be dependent upon the components of the former terrestrial ecosystem for food and habitat. As autochthonous factors began to regulate succession, diversity increased and the dominant species shifted to an assemblage of second colonizers. These factors included: (1) decomposition of terrestrial vegetation and detritus leaving bare substrate, (2) sedimentation, (3) improved food quality of the organic matter in the sediment because of ingestion and egestion by the organisms themselves, (4) increased plankton populations, and (5) appearance of macrophytes. As the second colonizers became firmly established in the third year, distinct patterns of spatial distribution began to appear among species with similar niches.
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    Antimerger policy in the United States: History and lessons (1996)
    Springer
    Empirica 23 (1996), S. 229-253 
    Details
    ISSN: 1573-6911
    Keywords: Antimerger policy ; United States ; Europe ; efficiency ; L41 ; G34 ; L21
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract This paper reviews the history of US antimerger policy. This history is divided into three periods: a period in which there was almost no effective antimerger policy at all from 1890 up to 1959, a period of vigorous antimerger policy from 1950 up through 1973, and a period of lax enforcement from 1974 to the present. The paper accounts for these shifts in antimerger policy and discusses their effects. After reviewing the logic and consequences of US antimerger policy, a critique of its permises is offered, particularly as these premises apply to the recent era of lax enforcement. The paper closes with suggestions for an alternative approach to antimerger policy that is consistent with the empirical evidence on why mergers occur and their effects.
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    URL: http://dx.doi.org/10.1007/BF00924972
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    How efficient are national environmental standards? A benefit-cost analysis of the United States experience (1991)
    Springer
    Environmental and resource economics 1 (1991), S. 385-413 
    Details
    ISSN: 1573-1502
    Keywords: Environmental standards ; environmental regulations ; benefit-cost ; cost-benefit ; United States ; efficiency
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Economics
    Notes: Abstract This paper summarizes the results of the first systematic, geographically-specific efficiency assessment of the U.S. experience with national environmental standards and with alternative approaches to establishing those standards. This ex-post evaluation assessed the net benefits that resulted from EPA's regulation of conventional air and water pollutants from the pulp and paper industry between 1973 and 1984. The paper compares the benefit-cost efficiencies of the three dominant regulatory approaches: technology, ambient, and benefits. Unlike previous studies, which assessed benefits and costs on a national basis, the study estimates both costs and benefits on a facility-by-facility basis. The analysis shows how the efficiency of national environmental regulations can vary dramatically at local levels. The authors conclude that the technology-based standards for water pollution management failed as an efficient environmental strategy. The costs clearly exceeded the benefits in the aggregate, as well as in the specific in most situations. Benefits exceeded costs at only 11 of the 68 mills investigated. The ambient based standards for air pollution management succeeded as an environmental strategy in the aggregate, but succeeded in the specific for only one-third of the mills (22 of 60 mills). The benefits-based standards for air pollution management also succeeded in the aggregate as well as in the specific for about one-half of the mills. Benefits exceeded costs at 29 of the 60 mills investigated. The results of the study point to two major conclusions. First, a regulatory policy that is based on some measure of environmental results, either ambient-based or benefits-based, will be more efficient than a policy that ignores environmental results. Second, truly efficient policies for reducing environmental risks require pollution mitigation decisions that take into account local conditions. These include not only the changes in local ambient conditions, but also the number of people who will benefit from pollution reduction decisions. This latter conclusion suggests that national environmental standards per se may be inefficient.
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    URL: http://dx.doi.org/10.1007/BF00377494
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    Terrestrial carbon dynamics: Case studies in the former Soviet Union, the conterminous United States, Mexico and Brazil (1997)
    Springer
    Mitigation and adaptation strategies for global change 1 (1997), S. 363-383 
    Details
    ISSN: 1573-1596
    Keywords: carbon flux ; land use ; former Soviet Union ; United States ; Mexico ; Brazil ; forests
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: Abstract This research assessed land-use impacts on C flux at a national level in four countries: former Soviet Union, United States, Mexico and Brazil, including biotic processes in terrestrial ecosystems (closed forests, woodlands, and croplands), harvest of trees for wood and paper products, and direct C emission from fires. The terrestrial ecosystems of the four countries contain approximately 40% of the world's terrestrial biosphere C pool, with the FSU alone having 27% of the global total. Average phytomass C densities decreased from south to north while average soil C densities in all three vegetation types generally increased from south to north. The C flux from land cover conversion was divided into a biotic component and a land-use component. We estimate that the total net biotic flux (Tg/yr) was positive (=uptake) in the FSU (631) and the U.S. (332), but negative in Mexico (-37) and Brazil (-16). In contrast, total flux from land use was negative (=emissions) in all four countries (TgC/yr): FSU -342; U.S. -243; Mexico -35; and Brazil -235. The total net effect of the biotic and land-use factors was a C sink in the FSU and the U.S. and a C source in both Brazil and Mexico.
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    URL: http://dx.doi.org/10.1007/BF00464888
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    A survey of dermatophytes isolated from human patients in the United States from 1982 to 1984 (1987)
    Springer
    Mycopathologia 98 (1987), S. 35-40 
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    ISSN: 1573-0832
    Keywords: dermatophytes ; survey ; United States ; humans ; 1982/84
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A survey of dermatophytes isolated from patients seeking medical advice was made from 1982 to 1984 in the United States. The survey included 59 locations with data from 49 cities and one state. Listing of the isolated dermatophytes and the frequency given by percentage of total follows: Trichophyton rubrum 46.8%, T. tonsurans 33.3%, T. mentagrophytes 10.1%, Microsporum canis 4.5%, Epidermophyton floccosum 3,5%, M. gypseum and T. verrucosum both 0.7%, M. audouinii and T. terrestre both 0.1%, and T. violaceum 0.06%. No isolations of M. ferrugineum or T. schoenleinii were reported. Temporal increases were observed for frequencies of T. mentagrophytes, T. tonsurans and M. canis, and decreases occurred for frequencies of E. floccosum and T. rubrum when the data from this survey were compared by the goodness of fit test to data of the 1979 to 1981 survey. The percent of dermatophyte isolations identified as T. tonsurans correlated significantly with the percentage of blacks in cities of 100000 or more people.
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    Perception of shape from shading in chimpanzees (Pan troglodytes) and humans (Homo sapiens) (1998)
    Springer
    Animal cognition 1 (1998), S. 25-35 
    Details
    ISSN: 1435-9456
    Keywords: Key words Shape from shading ; Visual search ; Texture segregation ; Chimpanzees ; Humans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The perception of shape from shading was tested in two chimpanzees (Pan troglodytes) and five humans (Homo sapiens), using visual search tasks. Subjects were required to select and touch an odd item (target) from among uniform distractors. Humans found the target faster when shading was vertical than when it was horizontal, consistent with results of previous research. Both chimpanzees showed the opposite pattern: they found the target faster when shading was horizontal. The same difference in response was found in texture segregation tasks. This difference between the species could not be explained by head rotation or head shift parallel to the surface of the monitor. Furthermore, when the shaded shape was changed from a circle to a square, or the shading type was changed from gradual to stepwise, the difference in performance between vertical and horizontal shading disappeared in chimpanzees, but persisted in humans. These results suggest that chimpanzees process shading information in a different way from humans.
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    Western migrants in central Europe: Isolated individuals or members of transnational communities? (2000)
    Springer
    GeoJournal 50 (2000), S. 105-108 
    Details
    ISSN: 1572-9893
    Keywords: community ; Czech Republic ; East Central Europe ; ethnicity ; migration ; Prague ; social exclusion ; transnationalism ; United States
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography
    Notes: Abstract Migration flows from western Europe, the United States and Canada to east central Europe have received little attention so far. But numbers are now considerable and in the context of globalisation it seems appropriate to conceptualise communities of Westerners in terms of transnational social spaces as defined by Glick Schiller et al. Study of Americans in Prague reveals three main groups: enterprise managers, lifestyle migrants and entrepreneurs in small and medium-sized enterprises. All are engaged in a variety of different processes of community-building, often with clear trends towards a new transnationalism. Yet, the individual attempt to live in two societies is limited by the marked boundaries of the communities and by the degree of social exclusion which they experience from the majority population.
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    URL: http://dx.doi.org/10.1023/A:1007183532417
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    Nitrogen fixation in hardwood forests of the northeastern United States (1980)
    Springer
    Plant and soil 54 (1980), S. 33-44 
    Details
    ISSN: 1573-5036
    Keywords: Acetylene reduction ; Harwood forests ; Nitrogen cycle ; Nitrogen fixation ; United States ; Wood litter
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Nitrogen-fixing activity in hardwood forests of the northeastern United States occurred in wood litter, greater than 2 cm in diameter. Activity in large dead wood was independent of species, in the case of deciduous wood litter, but was restricted to partially decayed wood with a high moisture content. Maximum rates of activity were observed in the summer months, minimum rates in the winter. Evidence from six stands of varying ages showed that fixation in large wood litter occurred in only 25% of the samples assayed. Fixation was highest in the youngest, 4 years, and oldest, over 200 years, stands; being about 2 kg/ha/yr. The quantity of nitrogen fixed appears to be related to the biomass of dead wood. Large amounts of wood litter in the youngest stands were from slash left after cutting. As the supply of slash is exhausted by decay, nitrogen fixation decreases, with a low around year 20. Fixation then gradually increases as natural thinning adds wood to the litter compartment. Apparently, the amount of nitrogen fixed in dead wood the first 20 years following clearcutting can only replace a modest fraction of the amount lost as a result of the cutting and product removal. Finally, the results indicate that nitrogen fixation in wood litter does not equal nitrogen fixation in a northern hardwood forest calculated using a mass balance approach, suggesting that additional nitrogen inputs exist.
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    Acidification Trends in Surface Waters in the International Program on Acidification of Rivers and Lakes (1997)
    Springer
    Water, air & soil pollution 93 (1997), S. 27-57 
    Details
    ISSN: 1573-2932
    Keywords: Acidification ; trends ; sulfate ; nitrate ; United States ; Europe
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract We applied trend analyses to data from the International Cooperative Programme forAcidification of Rivers and Lakes in an attempt to discover regional patterns of long-term changesin surface water chemistry both in Europe and North America, and to relate these changes totrends in deposition. Decreases in surface water SO 3 - concentrations predominated at European sites in theFederal Republic of Germany, The Netherlands, and in Norway, and at the North American sitesin Ontario, Canada, the Adirondacks and Catskill Mountains of New York, U.S.A. Otherpredominating trends in the European sites were decreasing Ca2+ concentrations at many of thesites in The Netherlands, Norway, and Sweden. Increases in NO 3 - were observed at several sites in southern Norway, and in theAdirondack and Catskill regions of eastern New York. This, combined with an increasedoccurrence of declining base cation concentrations may well be responsible for the lack ofdocumented surface water recovery from acidification. Despite region-wide trends in severalvariables of importance in acidification, no correlations between surface water trends and changesin deposition were found using these data.
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    Acidification trends in surface waters in the international program on acidification of rivers and lakes (1997)
    Springer
    Water, air & soil pollution 93 (1997), S. 27-57 
    Details
    ISSN: 1573-2932
    Keywords: Acidification ; trends ; sulfate ; nitrate ; United States ; Europe
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract We applied trend analyses to data from the International Cooperative Programme for Acidification of Rivers and Lakes in an attempt to discover regional patterns of long-term changes in surface water chemistry both in Europe and North America, and to relate these changes to trends in deposition. Decreases in surface water SO4 2− concentrations predominated at European sites in the Federal Republic of Germany, The Netherlands, and in Norway, and at the North American sites in Ontario, Canada, the Adirondacks and Catskill Mountains of New York, U.S.A. Other predominating trends in the European sites were decreasing Ca2+ concentrations at many of the sites in The Netherlands, Norway, and Sweden. Increases in NO3 − were observed at several sites in southern Norway, and in the Adirondack and Catskill regions of eastern New York. This, combined with an increased occurrence of declining base cation concentrations may well be responsible for the lack of documented surface water recovery from acidification. Despite region-wide trends in several variables of importance in acidification, no correlations between surface water trends and changes in deposition were found using these data.
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    Influence of the viscoelastic properties of the respiratory system on the energetically optimum breathing frequency (1993)
    Springer
    Annals of biomedical engineering 21 (1993), S. 489-499 
    Details
    ISSN: 1573-9686
    Keywords: Work of breathing ; Inspiratory pressure-time integral ; Respiratory modeling ; Dogs ; Humans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: Abstract We hypothesized that the viscoelastic properties of the respiratory system should have significant implications for the energetically optimal frequency of breathing, in view of the fact that these properties cause marked dependencies of overall system resistance and elastance on frequency. To test our hypothesis we simulated two models of canine and human respiratory system mechanics during sinusoidal breathing and calculated the inspiratory work ( $$\dot W$$ ) and pressure-time integral (PTI) per minute under both resting and exercise conditions. The two models were a two-compartment viscoelastic model and a single-compartment model. Requiring minute alveolar ventilation to be fixed, we found that both models predicted almost identical optimum breathing frequencies. The calculated PTI was very insensitive to increases in breathing frequency above the optimal frequencies, while $$\dot W$$ was found to increase slowly with frequency above its optimum. In contrast, both $$\dot W$$ and PTI increased sharply as frequency decreased below their respective optima. A sensitivity analysis showed that the model predictions were very insensitive to the elastance and resistance values chosen to characterize tissue viscoelasticity. We conclude that the $$\dot W$$ criterion for choosing the frequency of breathing is compatible with observations in nature, whereas the optimal frequency predictions of the PTI are rather too high. Both criteria allow for a fairly wide margin of choice in frequency above the optimum values without incurring excessive additional energy expenditure. Furthermore, contrary to our expectations, the viscoelastic properties of the respiratory system tissues do not pose a noticeable problem to the respiratory controller in terms of energy expenditure.
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    Campoletis sonorensis [Hym.: Ichneumonidae] as a parasitoid ofSpodoptera frugiperda [Lep.: Noctuidae]: Host stage preference and functional response (1985)
    Springer
    BioControl 30 (1985), S. 31-36 
    Details
    ISSN: 1573-8248
    Keywords: parasitoid,Campoletis sonorensis ; Ichneumonidae ; Spodoptera frugiperda ; Noctuidae temperature response ; density response ; United States ; Host stage preference
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé Le potentiel du parasiteCampoletis sonorensis comme agent de limitation des populations deSpodoptera frugiperda (FAW) a été évalué face à six densités d'hôtes et à deux températures distinctes. Une réponse fonctionnelle de type II a été observée aux deux températures chez la femelle deC. sonorensis en réponse aux différentes densités de la larve de Noctuelle. Aux densités de 60 et 75, un plus grand nombre de larves a été parasité à 25°C qu'à 30°C. On a découvert que le troisième stade larvaire était choisi de préférence parC. sonorensis pour pondre.
    Notes: Abstract The response of the parasitoidCampoletis sonorensis (Cameron) as a natural control agent of the fall armyworm,Spodoptera frugiperda (J. E. Smith), was evaluated at 6 host densities and 2 temperature regime. A type-II functional response was exhibited by femaleC. sonorensis in response to varying densities of all armyworn larvae at both temperatures. Significantly more larvae were parasitized at 25°C for the host densities of 60 and 75, than for the same densities at 30°C. Third instar fall armyworm larvae were found to be the preferred stage for parasitization byC. sonorensis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02372280
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    Electronic Resource
    Electronic Resource
    New records for two mosquito predators [Turbellaria: Mesostoma] in the northeastern United States (1985)
    Springer
    BioControl 30 (1985), S. 83-85 
    Details
    ISSN: 1573-8248
    Keywords: Mosquitoes ; Culicidae ; Flatworms ; Mesostoma spp. ; predation ; United States
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé Les observations accumulées indiquent que les larves des Plathelminthes mesostomides sont des prédateurs efficaces des larves de moustiques. Cette note présente les premières mentions de 3Mesostoma Ehrenberg incluant 2 prédateurs de moustiques.Mesostoma californicum Hyman,Mesostoma vernale Hyman, etMesostoma sp. cf.lingua Abildgaard furent découverts dans une mare temporaire du Massachusetts.M. californicum etM. sp. cf.lingua ont été reconnus comme des prédateurs efficaces des larves de moustiques.
    Notes: Abstract The accumulated data indicate that mesostomid flatworms are efficient predators of mosquito larvae. This paper presents the 1st published records for 3Mesostoma Ehrenberg, including 2 predators of mosquitoes.Mesostoma californicum Hyman,Mesostoma vernale Hyman, andMesostoma sp. cf.lingua Abildgaard were discovered in a temporary pool in Massachusetts.M. californicum andM. sp. cf.lingua were found to be efficient predators on mosquitoe larvae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02372287
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    Enzymology. A moving story (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-02-23
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3907122/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3907122/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Falke, Joseph J -- R01 GM040731/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2002 Feb 22;295(5559):1480-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Biophysics Program and the Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309, USA. falke@colorado.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11859184" target="_blank"〉PubMed〈/a〉
    Keywords: Arginine/chemistry ; Binding Sites ; Catalysis ; Cyclophilin A/*chemistry/*metabolism ; Hydrogen Bonding ; Models, Molecular ; Nitrogen/chemistry ; Nuclear Magnetic Resonance, Biomolecular ; Protein Binding ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Thermodynamics
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    HIV-1 diversity and vaccine development (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-07-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nabel, Gary -- Makgoba, William -- Esparza, Jose -- New York, N.Y. -- Science. 2002 Jun 28;296(5577):2335.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12090274" target="_blank"〉PubMed〈/a〉
    Keywords: *AIDS Vaccines/immunology ; Clinical Trials as Topic ; Developing Countries ; *Genetic Variation ; HIV Antibodies/immunology ; HIV Infections/epidemiology/immunology/prevention & control ; HIV-1/*genetics/*immunology ; Humans
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    The development of electroporation (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-01-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heller, Richard -- New York, N.Y. -- Science. 2002 Jan 11;295(5553):277.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11789539" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Electroporation ; Genetic Therapy/*methods ; Humans ; Transfection/*methods
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Cancer. BRCA2 enters the fray (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-09-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, John H -- Elledge, Stephen J -- New York, N.Y. -- Science. 2002 Sep 13;297(5588):1822-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12228708" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; BRCA1 Protein/metabolism ; BRCA2 Protein/*chemistry/*metabolism ; Binding Sites ; Breast Neoplasms/genetics ; Crystallography, X-Ray ; DNA/*metabolism ; DNA Damage ; *DNA Repair ; DNA, Single-Stranded/metabolism ; DNA-Binding Proteins/metabolism ; Female ; Genes, BRCA1 ; Genes, BRCA2 ; Genetic Predisposition to Disease ; Humans ; Mice ; Ovarian Neoplasms/genetics ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Rad51 Recombinase ; Rats ; Recombination, Genetic ; Replication Protein A
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Genetics. Please don't call it cloning! (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-02-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogelstein, Bert -- Alberts, Bruce -- Shine, Kenneth -- New York, N.Y. -- Science. 2002 Feb 15;295(5558):1237.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Kimmel Cancer Center at Johns Hopkins University, Baltimore, MD 21231, USA. vogelbe@welch.jhu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11847324" target="_blank"〉PubMed〈/a〉
    Keywords: Bioethical Issues ; Cell Line ; *Cloning, Organism/legislation & jurisprudence ; Embryo Research ; Embryo, Mammalian/*cytology ; Humans ; *Nuclear Transfer Techniques ; *Stem Cells ; *Terminology as Topic ; United States
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Transcription. Unlocking the gates to gene expression (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-03-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fry, Christopher J -- Peterson, Craig L -- New York, N.Y. -- Science. 2002 Mar 8;295(5561):1847-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA 01605, USA. craig.peterson@umassmed.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11884741" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Acetyltransferases/*metabolism ; Cell Differentiation ; Chromatin/chemistry/*metabolism ; Enterocytes/cytology/metabolism ; *Gene Expression Regulation ; Genes, Fungal ; Histone Acetyltransferases ; Histones/metabolism ; Humans ; Interferon-beta/genetics ; Models, Genetic ; Nucleosomes/chemistry/*metabolism ; Promoter Regions, Genetic ; RNA Polymerase II/metabolism ; *Saccharomyces cerevisiae Proteins ; Transcription Factors/*metabolism ; *Transcription, Genetic ; alpha 1-Antitrypsin/genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Lab v. field: the case for studying real-life bugs (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-10-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, Martin -- New York, N.Y. -- Science. 2002 Oct 4;298(5591):92-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12364779" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Animals, Genetically Modified ; *Anopheles/genetics/parasitology/physiology ; Behavior, Animal ; Biological Evolution ; *Culicidae/genetics/parasitology/physiology ; Ecology ; Genetics, Population ; Genome ; Humans ; *Insect Vectors/genetics/parasitology/physiology ; Malaria/prevention & control/transmission ; Molecular Biology ; Mosquito Control ; Plasmodium/physiology ; *Research ; Research Support as Topic ; Sequence Analysis, DNA ; Sexual Behavior, Animal
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Genomics. Gene duplication and evolution (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-08-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lynch, Michael -- New York, N.Y. -- Science. 2002 Aug 9;297(5583):945-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Indiana University, Bloomington, IN 47405, USA. mlynch@bio.indiana.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12169715" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Caenorhabditis elegans/genetics ; Chromosomes/genetics ; Chromosomes, Human/genetics ; *Gene Duplication ; Gene Rearrangement ; Gene Silencing ; *Genes, Duplicate ; *Genome, Human ; Genomics ; Humans ; Mutation ; Selection, Genetic
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Visualization and functional analysis of RNA-dependent RNA polymerase lattices (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-06-22
    Description: Positive-strand RNA viruses such as poliovirus replicate their genomes on intracellular membranes of their eukaryotic hosts. Electron microscopy has revealed that purified poliovirus RNA-dependent RNA polymerase forms planar and tubular oligomeric arrays. The structural integrity of these arrays correlates with cooperative RNA binding and RNA elongation and is sensitive to mutations that disrupt intermolecular contacts predicted by the polymerase structure. Membranous vesicles isolated from poliovirus-infected cells contain structures consistent with the presence of two-dimensional polymerase arrays on their surfaces during infection. Therefore, host cytoplasmic membranes may function as physical foundations for two-dimensional polymerase arrays, conferring the advantages of surface catalysis to viral RNA replication.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lyle, John M -- Bullitt, Esther -- Bienz, Kurt -- Kirkegaard, Karla -- AI-42119/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2002 Jun 21;296(5576):2218-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12077417" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Binding Sites ; Catalysis ; Crystallography, X-Ray ; HeLa Cells ; Humans ; Hydrogen-Ion Concentration ; Inclusion Bodies, Viral/metabolism/ultrastructure ; Microscopy, Electron ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Nucleic Acid Conformation ; Poliovirus/*enzymology/physiology ; Protein Conformation ; Protein Structure, Quaternary ; Protein Structure, Tertiary ; RNA Replicase/*chemistry/isolation & purification/*metabolism/ultrastructure ; RNA, Viral/biosynthesis/*metabolism ; Viral Core Proteins/metabolism ; Virus Replication
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Chemical synthesis of poliovirus cDNA: generation of infectious virus in the absence of natural template (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-07-13
    Description: Full-length poliovirus complementary DNA (cDNA) was synthesized by assembling oligonucleotides of plus and minus strand polarity. The synthetic poliovirus cDNA was transcribed by RNA polymerase into viral RNA, which translated and replicated in a cell-free extract, resulting in the de novo synthesis of infectious poliovirus. Experiments in tissue culture using neutralizing antibodies and CD155 receptor-specific antibodies and neurovirulence tests in CD155 transgenic mice confirmed that the synthetic virus had biochemical and pathogenic characteristics of poliovirus. Our results show that it is possible to synthesize an infectious agent by in vitro chemical-biochemical means solely by following instructions from a written sequence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cello, Jeronimo -- Paul, Aniko V -- Wimmer, Eckard -- New York, N.Y. -- Science. 2002 Aug 9;297(5583):1016-8. Epub 2002 Jul 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Microbiology, School of Medicine, State University of New York at Stony Brook, Stony Brook, NY 11794-5222, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12114528" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/immunology ; Capsid/metabolism ; Cell-Free System ; DNA, Complementary/*chemical synthesis/genetics ; DNA-Directed RNA Polymerases/genetics ; Female ; *Genome, Viral ; HeLa Cells ; Humans ; Male ; *Membrane Proteins ; Mice ; Mice, Transgenic ; Neutralization Tests ; Poliomyelitis/virology ; *Poliovirus/genetics/immunology/pathogenicity/physiology ; Promoter Regions, Genetic ; Protein Biosynthesis ; RNA, Viral/*chemical synthesis/genetics/physiology ; Receptors, Virus/genetics/immunology/metabolism ; Transcription, Genetic ; Viral Plaque Assay ; Viral Proteins ; Virulence ; Virus Replication
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Planetary science. NASA's new road to faster, cheaper, better exploration (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-11-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, Richard A -- New York, N.Y. -- Science. 2002 Nov 15;298(5597):1320-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12434031" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; *Planets ; Research Personnel ; Research Support as Topic ; Solar System ; Space Flight/*economics/*organization & administration/trends ; Spacecraft ; United States ; United States National Aeronautics and Space ; Administration/*economics/*organization & administration/trends
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Patent law. Natural substances and patentable inventions (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Demaine, Linda J -- Fellmeth, Aaron X -- New York, N.Y. -- Science. 2003 May 30;300(5624):1375-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉RAND, Santa Monica, CA 90401, USA. demaine@rand.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12775825" target="_blank"〉PubMed〈/a〉
    Keywords: Aluminum Oxide ; Chemical Phenomena ; Chemistry ; Natural Science Disciplines ; Patents as Topic/*legislation & jurisprudence ; Plant Extracts ; Plant Roots ; Titanium ; United States
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    Stem cells. Setting standards for human embryonic stem cells (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brivanlou, Ali H -- Gage, Fred H -- Jaenisch, Rudolf -- Jessell, Thomas -- Melton, Douglas -- Rossant, Janet -- New York, N.Y. -- Science. 2003 May 9;300(5621):913-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Rockefeller University, New York, NY 10021, USA. brvnlou@rockefeller.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12738841" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Specimen Banks ; Cell Culture Techniques/methods ; Cell Differentiation ; Cell Division ; *Cell Line ; Culture Media ; Culture Media, Conditioned ; Databases, Factual ; *Embryo Research ; Embryo, Mammalian/*cytology ; Humans ; Quality Control ; Registries ; Research/standards ; Signal Transduction ; Stem Cell Transplantation ; *Stem Cells/cytology/physiology ; Transfection
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Smallpox research. World health body fires starting gun (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-05-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, Richard -- New York, N.Y. -- Science. 2002 May 24;296(5572):1383.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12029105" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Specimen Banks ; *Research ; Russia ; United States ; *Variola virus ; *World Health Organization
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Construction and analysis of a human-chimpanzee comparative clone map (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-01-05
    Description: The recently released human genome sequences provide us with reference data to conduct comparative genomic research on primates, which will be important to understand what genetic information makes us human. Here we present a first-generation human-chimpanzee comparative genome map and its initial analysis. The map was constructed through paired alignment of 77,461 chimpanzee bacterial artificial chromosome end sequences with publicly available human genome sequences. We detected candidate positions, including two clusters on human chromosome 21 that suggest large, nonrandom regions of difference between the two genomes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fujiyama, Asao -- Watanabe, Hidemi -- Toyoda, Atsushi -- Taylor, Todd D -- Itoh, Takehiko -- Tsai, Shih-Feng -- Park, Hong-Seog -- Yaspo, Marie-Laure -- Lehrach, Hans -- Chen, Zhu -- Fu, Gang -- Saitou, Naruya -- Osoegawa, Kazutoyo -- de Jong, Pieter J -- Suto, Yumiko -- Hattori, Masahira -- Sakaki, Yoshiyuki -- New York, N.Y. -- Science. 2002 Jan 4;295(5552):131-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉RIKEN Genomic Sciences Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan. afujiyam@gsc.riken.go.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11778049" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Chromosomes, Artificial, Bacterial ; Chromosomes, Human, Pair 21/genetics ; Cloning, Molecular ; Contig Mapping ; Female ; Gene Library ; *Genome ; *Genome, Human ; Humans ; Male ; Pan troglodytes/*genetics ; *Physical Chromosome Mapping ; Sequence Alignment ; Sequence Analysis, DNA ; Sequence Tagged Sites ; X Chromosome/genetics ; Y Chromosome/genetics
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    Disrupted timing of discontinuous but not continuous movements by cerebellar lesions (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-31
    Description: Patients with cerebellar damage are known to exhibit deficits in the temporal control of movements. We report that these deficits are restricted to discontinuous movements. Cerebellar patients exhibited no deficit in temporal variability when producing continuous, rhythmic movements. We hypothesize that the temporal properties of continuous movements are emergent and reflect the operation of other control parameters not associated with the cerebellum. In contrast, discontinuous movements require an explicit representation of the temporal goal, a function of the cerebellum. The requirement for explicit temporal representation provides a parsimonious account of cerebellar involvement in a range of tasks.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spencer, Rebecca M C -- Zelaznik, Howard N -- Diedrichsen, Jorn -- Ivry, Richard B -- NS17778/NS/NINDS NIH HHS/ -- NS30256/NS/NINDS NIH HHS/ -- NS40813/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 May 30;300(5624):1437-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, University of California, Berkeley, 3210 Tolman Hall #1650, Berkeley, CA 94720, USA. rspencer@socrates.berkeley.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12775842" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Aged, 80 and over ; Cerebellar Diseases/*physiopathology ; Cerebellum/physiology/*physiopathology ; Female ; Humans ; Male ; Middle Aged ; *Motor Activity ; Movement ; *Psychomotor Performance ; Spinocerebellar Degenerations/*physiopathology ; Time Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Altered peptide ligands and MS treatment (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-06-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Conlon, Paul -- Steinman, Lawrence -- New York, N.Y. -- Science. 2002 Jun 7;296(5574):1801-2; author reply 1801-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12053936" target="_blank"〉PubMed〈/a〉
    Keywords: Clinical Trials as Topic ; Controlled Clinical Trials as Topic ; Double-Blind Method ; Humans ; Ligands ; Multicenter Studies as Topic ; Multiple Sclerosis/*drug therapy ; Peptide Fragments/*adverse effects/*therapeutic use
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Obesity drug pipeline not so fat (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-02-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gura, Trisha -- New York, N.Y. -- Science. 2003 Feb 7;299(5608):849-52.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12574616" target="_blank"〉PubMed〈/a〉
    Keywords: Agouti-Related Protein ; Animals ; Anti-Obesity Agents/adverse effects/pharmacology/*therapeutic use ; Appetite/drug effects ; Arcuate Nucleus of Hypothalamus/metabolism ; Ciliary Neurotrophic Factor/therapeutic use ; Clinical Trials as Topic ; Cyclobutanes/adverse effects/therapeutic use ; Energy Intake ; Ghrelin ; Humans ; Hunger/drug effects ; Intercellular Signaling Peptides and Proteins ; Lactones/adverse effects/therapeutic use ; Leptin/metabolism/therapeutic use ; Mice ; Nerve Tissue Proteins/adverse effects/therapeutic use ; Neurons/metabolism ; Neuropeptide Y/metabolism/pharmacology ; Obesity/*drug therapy/metabolism ; Peptide Fragments ; Peptide Hormones/metabolism/pharmacology ; Peptide YY/metabolism/pharmacology ; Phentermine/adverse effects/therapeutic use ; Proteins/metabolism ; Receptors, Corticotropin/metabolism ; Receptors, Melanocortin ; Weight Loss ; alpha-MSH/metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Intellectual property. DuPont ups ante on use of Harvard's OncoMouse (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-05-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, Eliot -- New York, N.Y. -- Science. 2002 May 17;296(5571):1212.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12016275" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Disease Models, Animal ; Drug Industry/legislation & jurisprudence ; Drug Screening Assays, Antitumor ; Mice ; *Mice, Transgenic ; National Institutes of Health (U.S.)/legislation & jurisprudence ; *Neoplasms, Experimental ; *Patents as Topic ; United States ; Universities/legislation & jurisprudence
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Portraits of science. Logic, learning, and experimental medicine (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-02-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nutton, Vivian -- New York, N.Y. -- Science. 2002 Feb 1;295(5556):800-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Centre for the History of Medicine, University College London, Euston House, 24 Eversholt Street, London NW1 1AD, UK. v.nutton@ucl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11823624" target="_blank"〉PubMed〈/a〉
    Keywords: Anatomy/history ; Anatomy, Comparative/history ; Animals ; Education, Medical/history ; History, Ancient ; Humans ; *Logic ; Philosophy, Medical/*history ; Physician's Role ; Research/*history ; Rome ; Turkey
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Ecology. Soil fertility and hunger in Africa (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-03-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sanchez, Pedro A -- New York, N.Y. -- Science. 2002 Mar 15;295(5562):2019-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉International Center for Research in Agroforestry, Post Office Box 30677, Nairobi, Kenya. P.sanchez@cgiar.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11896257" target="_blank"〉PubMed〈/a〉
    Keywords: Africa South of the Sahara ; Agriculture/*methods ; Biomass ; Crops, Agricultural/*growth & development ; *Ecosystem ; Fertilizers ; *Food Supply ; Forestry ; Humans ; Hunger ; Nitrogen ; Nitrogen Fixation ; Phosphates ; Plant Development ; Public Policy ; *Soil ; Trees/growth & development ; United Nations ; Zea mays/growth & development
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Infectious disease. Another disease blights families in Siberia's far north (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-04-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, Richard -- New York, N.Y. -- Science. 2002 Apr 26;296(5568):644.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11976425" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Humans ; Male ; Pedigree ; Siberia/epidemiology ; Spinocerebellar Ataxias/*epidemiology/*genetics ; *Trinucleotide Repeats
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Inflammatory arthritis. How immune system gangs up on joints (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-09-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beckman, Mary -- New York, N.Y. -- Science. 2002 Sep 6;297(5587):1626-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12215618" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arthritis/*immunology ; Arthritis, Rheumatoid/immunology ; Autoantibodies/immunology ; Humans ; Joints/*immunology ; Mast Cells/immunology ; Mice
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Stromal effects on mammary gland development and breast cancer (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-05-11
    Description: Breast cancer manifests itself in the mammary epithelium, yet there is a growing recognition that mammary stromal cells also play an important role in tumorigenesis. During its developmental cycle, the mammary gland displays many of the properties associated with breast cancer, and many of the stromal factors necessary for mammary development also promote or protect against breast cancer. Here we review our present knowledge of the specific factors and cell types that contribute to epithelial-stromal crosstalk during mammary development. To find cures for diseases like breast cancer that rely on epithelial-stromal crosstalk, we must understand how these different cell types communicate with each other.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2788989/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2788989/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wiseman, Bryony S -- Werb, Zena -- CA57621/CA/NCI NIH HHS/ -- R01 CA057621/CA/NCI NIH HHS/ -- R01 CA057621-07/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2002 May 10;296(5570):1046-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy, University of California, 513 Parnassus Avenue, San Francisco, CA 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12004111" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes/cytology/physiology ; Animals ; Apoptosis ; Breast/cytology/embryology/*growth & development/physiology ; Breast Neoplasms/pathology/*physiopathology ; Cell Communication ; Epithelial Cells/physiology ; Extracellular Matrix/physiology ; Female ; Humans ; Mammary Glands, Animal/cytology/embryology/*growth & development/physiology ; Mammary Neoplasms, Animal/pathology/*physiopathology ; Morphogenesis ; Neoplasm Metastasis ; Pregnancy ; Signal Transduction ; Stromal Cells/*physiology
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Risks of genetically engineered crops (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-09-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gurian-Sherman, Doug -- New York, N.Y. -- Science. 2003 Sep 26;301(5641):1845; author reply 1845.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14512604" target="_blank"〉PubMed〈/a〉
    Keywords: Crops, Agricultural/*genetics/standards ; Genetic Engineering ; Government Regulation ; Phenotype ; *Plants, Genetically Modified ; Risk Assessment ; United States ; *United States Department of Agriculture ; *United States Environmental Protection Agency
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Infectious disease. A many-headed medusa (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-04-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, Richard -- New York, N.Y. -- Science. 2002 Apr 26;296(5568):643.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11976424" target="_blank"〉PubMed〈/a〉
    Keywords: Acute Disease ; Brain/*pathology ; Chronic Disease ; Encephalomyelitis/*pathology/*physiopathology ; Humans
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Evolutionary discrimination of mammalian conserved non-genic sequences (CNGs) (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-10-04
    Description: Analysis of the human and mouse genomes identified an abundance of conserved non-genic sequences (CNGs). The significance and evolutionary depth of their conservation remain unanswered. We have quantified levels and patterns of conservation of 191 CNGs of human chromosome 21 in 14 mammalian species. We found that CNGs are significantly more conserved than protein-coding genes and noncoding RNAS (ncRNAs) within the mammalian class from primates to monotremes to marsupials. The pattern of substitutions in CNGs differed from that seen in protein-coding and ncRNA genes and resembled that of protein-binding regions. About 0.3% to 1% of the human genome corresponds to a previously unknown class of extremely constrained CNGs shared among mammals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dermitzakis, Emmanouil T -- Reymond, Alexandre -- Scamuffa, Nathalie -- Ucla, Catherine -- Kirkness, Ewen -- Rossier, Colette -- Antonarakis, Stylianos E -- New York, N.Y. -- Science. 2003 Nov 7;302(5647):1033-5. Epub 2003 Oct 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Medical Genetics and National Center of Competence in Research (NCCR) Frontiers in Genetics, University of Geneva Medical School and University Hospitals, 1211 Geneva, Switzerland. Emmanouil.Dermitzakis@medecine.unige.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14526086" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Chromosomes, Human, Pair 21/*genetics ; Chromosomes, Mammalian/*genetics ; *Conserved Sequence ; DNA, Intergenic/*genetics ; Discriminant Analysis ; *Evolution, Molecular ; Female ; Genetic Code ; Genome ; Humans ; Male ; Mammals/*genetics ; Molecular Sequence Data ; Polymerase Chain Reaction ; Proteins/genetics ; RNA, Untranslated/genetics ; Selection, Genetic ; Sequence Alignment ; Species Specificity ; Time ; Transcription, Genetic
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Loren Rieseberg profile. No garden-variety biologist (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-12-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brown, Kathryn -- New York, N.Y. -- Science. 2003 Nov 28;302(5650):1499.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14645825" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; *Biological Evolution ; Desert Climate ; Ecosystem ; Environment ; Genes, Plant ; Helianthus/*genetics/growth & development/physiology ; History, 20th Century ; History, 21st Century ; *Hybridization, Genetic ; Mutation ; Phenotype ; Sodium Chloride/pharmacology ; United States
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Generation of an LFA-1 antagonist by the transfer of the ICAM-1 immunoregulatory epitope to a small molecule (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-02-09
    Description: The protein-protein interaction between leukocyte functional antigen-1 (LFA-1) and intercellular adhesion molecule-1 (ICAM-1) is critical to lymphocyte and immune system function. Here, we report on the transfer of the contiguous, nonlinear epitope of ICAM-1, responsible for its association with LFA-1, to a small-molecule framework. These LFA-1 antagonists bound LFA-1, blocked binding of ICAM-1, and inhibited a mixed lymphocyte reaction (MLR) with potency significantly greater than that of cyclosporine A. Furthermore, in comparison to an antibody to LFA-1, they exhibited significant anti-inflammatory effects in vivo. These results demonstrate the utility of small-molecule mimics of nonlinear protein epitopes and the protein epitopes themselves as leads in the identification of novel pharmaceutical agents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gadek, T R -- Burdick, D J -- McDowell, R S -- Stanley, M S -- Marsters, J C Jr -- Paris, K J -- Oare, D A -- Reynolds, M E -- Ladner, C -- Zioncheck, K A -- Lee, W P -- Gribling, P -- Dennis, M S -- Skelton, N J -- Tumas, D B -- Clark, K R -- Keating, S M -- Beresini, M H -- Tilley, J W -- Presta, L G -- Bodary, S C -- New York, N.Y. -- Science. 2002 Feb 8;295(5557):1086-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioorganic Chemistry, Genentech, One DNA Way, South San Francisco, CA 94080, USA. trg@gene.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11834839" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Anti-Inflammatory Agents, Non-Steroidal/chemical ; synthesis/chemistry/metabolism/pharmacology ; Cyclosporine/pharmacology ; Dermatitis, Irritant/drug therapy ; Dinitrofluorobenzene ; Drug Design ; Enzyme-Linked Immunosorbent Assay ; Epitopes ; Female ; Humans ; Immunoglobulin Fab Fragments/immunology/pharmacology ; Immunosuppressive Agents/chemical synthesis/chemistry/metabolism/*pharmacology ; Intercellular Adhesion Molecule-1/chemistry/*immunology/*metabolism ; Lymphocyte Culture Test, Mixed ; Lymphocyte Function-Associated Antigen-1/immunology/*metabolism ; Mice ; Mice, Inbred BALB C ; Molecular Mimicry ; Mutagenesis ; Protein Structure, Secondary ; Structure-Activity Relationship ; Thiophenes/*chemical synthesis/chemistry/metabolism/*pharmacology ; beta-Alanine/analogs & derivatives/*chemical ; synthesis/chemistry/metabolism/*pharmacology
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    Infectious disease. Siberia's deadly stalker emerges from the shadows (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-04-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, Richard -- New York, N.Y. -- Science. 2002 Apr 26;296(5568):642-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11976423" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Antibodies, Viral/analysis ; Cerebral Cortex/pathology ; Cerebrospinal Fluid/virology ; Disease Outbreaks ; Encephalitis, Herpes Simplex/epidemiology ; Encephalomyelitis/ethnology/*etiology/pathology/virology ; Female ; Genetic Predisposition to Disease ; Herpesviridae/immunology/isolation & purification ; Herpesviridae Infections/ethnology/pathology/virology ; Humans ; Male ; Population Surveillance ; Rural Health ; Siberia/epidemiology ; Virus Diseases/ethnology/pathology/virology
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Genetics. Toward a new vocabulary of human genetic variation (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-11-16
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2271140/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2271140/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sankar, Pamela -- Cho, Mildred K -- R01 HG002189/HG/NHGRI NIH HHS/ -- R01 HG002189-01/HG/NHGRI NIH HHS/ -- R01 HG002189-02/HG/NHGRI NIH HHS/ -- R01 HGO 2189-02/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2002 Nov 15;298(5597):1337-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Bioethics, University of Pennsylvania, Philadelphia, PA 19104-3308, USA. sankarp@mail.med.upenn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12434037" target="_blank"〉PubMed〈/a〉
    Keywords: Continental Population Groups/*genetics ; Ethnic Groups/genetics ; Genetic Markers ; *Genetic Variation ; *Genetics, Medical ; Humans ; Terminology as Topic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Genetics. FDA races in wrong direction (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-07-26
    Description: Despite recent genetic evidence and the promise of individualized medicine, there is a continuing interest in using self-identified categories of race and ethnicity as variables in scientific and medical research. The U.S. Food and Drug Administration recently proposed a standardized approach for the collection of race and ethnicity data in clinical trials. We believe that this move fails to acknowledge new scientific data and recommend that relevant data from individuals be collected and used rather than broad group statistics. We also encourage that increased funding be committed to this important issue.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Haga, Susanne B -- Venter, J Craig -- New York, N.Y. -- Science. 2003 Jul 25;301(5632):466.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for the Advancement of Genomics, Rockville, MD 20850, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12881555" target="_blank"〉PubMed〈/a〉
    Keywords: *Clinical Trials as Topic ; *Continental Population Groups/genetics ; *Ethnic Groups/genetics ; Gene Frequency ; Genetic Variation ; Guidelines as Topic ; Humans ; Pharmacogenetics ; United States ; *United States Food and Drug Administration
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    Common structure of soluble amyloid oligomers implies common mechanism of pathogenesis (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-04-19
    Description: Soluble oligomers are common to most amyloids and may represent the primary toxic species of amyloids, like the Abeta peptide in Alzheimer's disease (AD). Here we show that all of the soluble oligomers tested display a common conformation-dependent structure that is unique to soluble oligomers regardless of sequence. The in vitro toxicity of soluble oligomers is inhibited by oligomer-specific antibody. Soluble oligomers have a unique distribution in human AD brain that is distinct from fibrillar amyloid. These results indicate that different types of soluble amyloid oligomers have a common structure and suggest they share a common mechanism of toxicity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kayed, Rakez -- Head, Elizabeth -- Thompson, Jennifer L -- McIntire, Theresa M -- Milton, Saskia C -- Cotman, Carl W -- Glabe, Charles G -- AG00538/AG/NIA NIH HHS/ -- AG16573/AG/NIA NIH HHS/ -- NS31230/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 Apr 18;300(5618):486-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Biochemistry, University of California, Irvine, CA 92697-3900, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12702875" target="_blank"〉PubMed〈/a〉
    Keywords: Aged ; Aged, 80 and over ; Alzheimer Disease/metabolism/pathology ; Amyloid/chemistry/toxicity ; Amyloid beta-Peptides/analysis/*chemistry/immunology/toxicity ; Animals ; Antibodies/immunology ; Antibody Specificity ; Biopolymers/analysis/chemistry/toxicity ; Brain/pathology ; Brain Chemistry ; Cell Survival ; Humans ; Microscopy, Confocal ; Microscopy, Electron ; Molecular Mimicry ; Neurofibrillary Tangles/chemistry ; Peptide Fragments/chemistry/immunology ; Protein Conformation ; Rabbits ; Solubility ; Tumor Cells, Cultured
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    Environmental Protection Agency. Access to proposals triggers sharp debate (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-03-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Renner, Rebecca -- New York, N.Y. -- Science. 2003 Mar 7;299(5612):1501.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12624242" target="_blank"〉PubMed〈/a〉
    Keywords: *Access to Information ; Government Agencies ; *Intellectual Property ; National Institutes of Health (U.S.) ; Privacy ; Research Support as Topic ; United States ; *United States Environmental Protection Agency
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    Ethics. Revisiting a 1930s scandal, AACR to rename a prize (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-04-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Starr, Douglas -- New York, N.Y. -- Science. 2003 Apr 25;300(5619):573-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12714721" target="_blank"〉PubMed〈/a〉
    Keywords: *Awards and Prizes ; Ethics, Research/*history ; History, 20th Century ; *Neoplasms/history ; Prejudice ; Puerto Rico ; *Societies, Scientific ; United States
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    Recent segmental duplications in the human genome (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-08-10
    Description: Primate-specific segmental duplications are considered important in human disease and evolution. The inability to distinguish between allelic and duplication sequence overlap has hampered their characterization as well as assembly and annotation of our genome. We developed a method whereby each public sequence is analyzed at the clone level for overrepresentation within a whole-genome shotgun sequence. This test has the ability to detect duplications larger than 15 kilobases irrespective of copy number, location, or high sequence similarity. We mapped 169 large regions flanked by highly similar duplications. Twenty-four of these hot spots of genomic instability have been associated with genetic disease. Our analysis indicates a highly nonrandom chromosomal and genic distribution of recent segmental duplications, with a likely role in expanding protein diversity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bailey, Jeffrey A -- Gu, Zhiping -- Clark, Royden A -- Reinert, Knut -- Samonte, Rhea V -- Schwartz, Stuart -- Adams, Mark D -- Myers, Eugene W -- Li, Peter W -- Eichler, Evan E -- CA094816/CA/NCI NIH HHS/ -- GM58815/GM/NIGMS NIH HHS/ -- HG002318/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2002 Aug 9;297(5583):1003-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Center for Computational Genomics, and Center for Human Genetics, Case Western Reserve University School of Medicine and University Hospitals of Cleveland, Cleveland, OH 44106, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12169732" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Base Sequence ; Biological Evolution ; Chromosomes, Human/genetics ; Computational Biology ; Databases, Nucleic Acid ; Exons ; Expressed Sequence Tags ; *Gene Duplication ; Gene Rearrangement ; *Genes, Duplicate ; Genetic Diseases, Inborn/genetics ; *Genome, Human ; Humans ; Models, Genetic ; Polymorphism, Single Nucleotide ; Proteome ; Recombination, Genetic ; Sequence Alignment
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Homeland security. New agency contains strong science arm (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-11-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malakoff, David -- New York, N.Y. -- Science. 2002 Nov 22;298(5598):1534.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12446877" target="_blank"〉PubMed〈/a〉
    Keywords: *Bioterrorism ; Financing, Government ; Government Agencies/economics/legislation & jurisprudence/*organization & ; administration ; National Institutes of Health (U.S.) ; Research/*organization & administration ; Research Support as Topic ; Security Measures/economics/legislation & jurisprudence/*organization & ; administration ; United States
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Adult-onset primary open-angle glaucoma caused by mutations in optineurin (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-02-09
    Description: Primary open-angle glaucoma (POAG) affects 33 million individuals worldwide and is a leading cause of blindness. In a study of 54 families with autosomal dominantly inherited adult-onset POAG, we identified the causative gene on chromosome 10p14 and designated it OPTN (for "optineurin"). Sequence alterations in OPTN were found in 16.7% of families with hereditary POAG, including individuals with normal intraocular pressure. The OPTN gene codes for a conserved 66-kilodalton protein of unknown function that has been implicated in the tumor necrosis factor-alpha signaling pathway and that interacts with diverse proteins including Huntingtin, Ras-associated protein RAB8, and transcription factor IIIA. Optineurin is expressed in trabecular meshwork, nonpigmented ciliary epithelium, retina, and brain, and we speculate that it plays a neuroprotective role.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rezaie, Tayebeh -- Child, Anne -- Hitchings, Roger -- Brice, Glen -- Miller, Lauri -- Coca-Prados, Miguel -- Heon, Elise -- Krupin, Theodore -- Ritch, Robert -- Kreutzer, Donald -- Crick, R Pitts -- Sarfarazi, Mansoor -- EY-09947/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 2002 Feb 8;295(5557):1077-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Ophthalmic Genetics Laboratory, Surgical Research Center, Department of Surgery, University of Connecticut Health Center, Farmington, CT 06030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11834836" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Alternative Splicing ; Amino Acid Sequence ; Brain/metabolism ; Chromosome Mapping ; Chromosomes, Human, Pair 10/genetics ; Ciliary Body/metabolism ; Exons ; Eye Proteins/analysis/chemistry/*genetics/physiology ; Female ; Glaucoma, Open-Angle/*genetics ; Golgi Apparatus/chemistry ; Heterozygote ; Humans ; Intraocular Pressure ; Male ; Middle Aged ; *Mutation ; *Mutation, Missense ; Nerve Tissue Proteins/analysis/chemistry/*genetics/physiology ; Ocular Hypertension/genetics ; Pedigree ; Polymorphism, Single-Stranded Conformational ; Retina/metabolism ; Trabecular Meshwork/metabolism ; *Transcription Factor TFIIIA ; Zinc Fingers
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    Parkinson's disease. Coincidence or connection? (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-04-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, Richard -- New York, N.Y. -- Science. 2002 Apr 19;296(5567):451-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11964452" target="_blank"〉PubMed〈/a〉
    Keywords: Canada/epidemiology ; Cluster Analysis ; Environmental Exposure/adverse effects ; *Famous Persons ; Female ; History, 21st Century ; Humans ; Male ; Parkinson Disease/*epidemiology/etiology ; *Television ; Time Factors ; Virus Diseases/complications/epidemiology
    Print ISSN: 0036-8075
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    Toxicology. Fruit bats linked to mystery disease (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-04-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, Richard -- New York, N.Y. -- Science. 2002 Apr 12;296(5566):241.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11951013" target="_blank"〉PubMed〈/a〉
    Keywords: Amyotrophic Lateral Sclerosis/epidemiology/etiology ; Animals ; *Chiroptera ; *Cycas ; Cycasin/toxicity ; *Diet ; Guam/epidemiology ; Humans ; Neurodegenerative Diseases/epidemiology/*etiology ; Neurotoxins/toxicity ; Parkinsonian Disorders/epidemiology/etiology ; Plant Poisoning/epidemiology ; Plants, Toxic ; Seeds
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    Historical essay. The early years of HIV/AIDS (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-12-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallo, Robert C -- New York, N.Y. -- Science. 2002 Nov 29;298(5599):1728-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Human Virology and Department of Microbiology and Immunology, University of Maryland, Baltimore, MD 21201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12459576" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Serodiagnosis/history ; Acquired Immunodeficiency Syndrome/diagnosis/*history/immunology/virology ; CD4-Positive T-Lymphocytes/virology ; Cell Line ; Cells, Cultured ; France ; *HIV/classification/isolation & purification/physiology ; History, 20th Century ; Human T-lymphotropic virus 1/isolation & purification/physiology ; Human T-lymphotropic virus 2/isolation & purification/physiology ; Humans ; Interleukin-2/history/isolation & purification/physiology ; Patents as Topic/history ; RNA-Directed DNA Polymerase/history/isolation & purification/metabolism ; United States ; Virus Cultivation
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Longevity research. In vino vitalis? Compounds activate life-extending genes (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-08-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hall, Stephen S -- New York, N.Y. -- Science. 2003 Aug 29;301(5637):1165.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12947168" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Caloric Restriction ; *Flavonoids ; *Gene Expression Regulation ; Histone Deacetylases/*genetics/metabolism ; Humans ; *Longevity ; Phenols/metabolism ; Polymers/metabolism ; Polyphenols ; Saccharomyces cerevisiae/genetics/physiology ; Silent Information Regulator Proteins, Saccharomyces ; cerevisiae/*genetics/metabolism ; Sirtuin 1 ; Sirtuin 2 ; Sirtuins/*genetics/metabolism ; Stilbenes/*metabolism ; Vitis/chemistry ; *Wine
    Print ISSN: 0036-8075
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    Historical essay. Prospects for the future (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-12-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallo, Robert C -- Montagnier, Luc -- New York, N.Y. -- Science. 2002 Nov 29;298(5599):1730-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Human Virology and Department of Microbiology and Immunology, University of Maryland, Baltimore, MD 21201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12459577" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines/immunology/therapeutic use ; *Acquired Immunodeficiency Syndrome/drug therapy/prevention & ; control/transmission/virology ; Anti-HIV Agents/therapeutic use ; Biomedical Research ; Clinical Trials as Topic ; Developed Countries ; Developing Countries ; Drug Costs ; Female ; HIV/drug effects ; Health Services/economics ; Humans ; Infant, Newborn ; Infectious Disease Transmission, Vertical ; International Cooperation ; Pregnancy ; Pregnancy Complications, Infectious/drug therapy ; Research Support as Topic ; Technology Transfer ; United Nations
    Print ISSN: 0036-8075
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  • 82
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    Lateralized cognitive processes and lateralized task control in the human brain (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-07-19
    Description: The principles underlying human hemispheric specialization are poorly understood. We used functional magnetic resonance imaging of letter and visuospatial decision tasks with identical word stimuli to address two unresolved problems. First, hemispheric specialization depended on the nature of the task rather than on the nature of the stimulus. Second, analysis of frontal candidate regions for cognitive control showed increased coupling between left anterior cingulate cortex (ACC) and left inferior frontal gyrus during letter decisions, whereas right ACC showed enhanced coupling with right parietal areas during visuospatial decisions. Cognitive control is thus localized in the same hemisphere as task execution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stephan, Klaas E -- Marshall, John C -- Friston, Karl J -- Rowe, James B -- Ritzl, Afra -- Zilles, Karl -- Fink, Gereon R -- 077029/Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2003 Jul 18;301(5631):384-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Medicine (IME), Research Centre Julich, 52425 Julich, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12869765" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain/*physiology ; Brain Mapping ; *Cognition ; Functional Laterality ; Gyrus Cinguli/physiology ; Humans ; *Language ; Magnetic Resonance Imaging ; Male ; Parietal Lobe/physiology ; Prefrontal Cortex/physiology ; Space Perception ; Visual Perception
    Print ISSN: 0036-8075
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    Lupus: mysterious disease holds its secrets tight (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-04-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, Eliot -- New York, N.Y. -- Science. 2002 Apr 26;296(5568):689-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11976440" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Antinuclear/immunology/metabolism ; Autoantibodies/immunology ; Autoantigens/immunology ; Chromosome Mapping ; Clinical Trials as Topic ; Disease Susceptibility ; Epstein-Barr Virus Infections/complications ; Female ; Genetic Predisposition to Disease ; Humans ; Immune System/physiopathology ; Immunotherapy ; Lupus Erythematosus, Systemic/*etiology/genetics/immunology/therapy ; Male ; Mental Processes ; *Ribonucleoproteins, Small Nuclear ; Risk Factors ; snRNP Core Proteins
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    Genomics. Mmu 16--comparative genomic highlights (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-06-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Copeland, Neal G -- Jenkins, Nancy A -- O'Brien, Stephen J -- New York, N.Y. -- Science. 2002 May 31;296(5573):1617-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mouse Cancer Genetics Program, National Cancer Institute, Frederick, MD, 21702, USA. copeland@ncifcrf.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12040165" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Composition ; Biological Evolution ; Chromosome Aberrations ; Chromosomes/*genetics ; Chromosomes, Human/genetics ; Computational Biology ; Conserved Sequence ; Evolution, Molecular ; Gene Duplication ; Gene Rearrangement ; Genes ; Genome ; *Genome, Human ; Genomics ; Humans ; Mice ; Mice, Inbred Strains/*genetics ; Multigene Family ; *Sequence Analysis, DNA ; Species Specificity ; Synteny
    Print ISSN: 0036-8075
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    Neuroscience. Power to the paralyzed (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-01-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, Ingrid -- New York, N.Y. -- Science. 2003 Jan 24;299(5606):497.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12543950" target="_blank"〉PubMed〈/a〉
    Keywords: Amyotrophic Lateral Sclerosis/physiopathology/*rehabilitation ; Brain/*physiology ; *Communication Aids for Disabled ; *Computer Systems ; Electroencephalography ; Humans ; Software ; *User-Computer Interface
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  • 86
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    Immunotherapeutic approaches to Alzheimer's disease (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-11-01
    Description: Although neurodegenerative diseases such as Alzheimer's disease are not classically considered mediated by inflammation or the immune system, in some instances the immune system may play an important role in the degenerative process. Furthermore, it has become clear that the immune system itself may have beneficial effects in nervous system diseases considered neurodegenerative. Immunotherapeutic approaches designed to induce a humoral immune response have recently been developed for the treatment of Alzheimer's disease. These studies have led to human trials that resulted in both beneficial and adverse effects. In animal models, it has also been shown that immunotherapy designed to induce a cellular immune response may be of benefit in central nervous system injury, although T cells may have either a beneficial or detrimental effect depending on the type of T cell response induced. These areas provide a new avenue for exploring immune system-based therapy of neurodegenerative diseases and will be discussed here with a primary focus on Alzheimer's disease. We will also discuss how these approaches affect microglia activation, which plays a key role in therapy of such diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Monsonego, Alon -- Weiner, Howard L -- New York, N.Y. -- Science. 2003 Oct 31;302(5646):834-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA. amonsonego@rics.bwh.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14593170" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*therapy ; Alzheimer Vaccines/adverse effects/*therapeutic use ; Amyloid beta-Peptides/*immunology/metabolism ; Animals ; Antibody Formation ; Antigen-Presenting Cells/immunology ; Central Nervous System/immunology ; Clinical Trials as Topic ; Humans ; Immunity, Innate ; Immunity, Mucosal ; Immunization ; *Immunotherapy/adverse effects ; Lymphocyte Activation ; Microglia/immunology ; Nitric Oxide/metabolism ; T-Lymphocytes/immunology
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  • 87
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    Research fraud, public policy, and gun control (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-06-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lott, John R Jr -- New York, N.Y. -- Science. 2003 Jun 6;300(5625):1505; author reply 1505.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12791965" target="_blank"〉PubMed〈/a〉
    Keywords: Crime/statistics & numerical data ; *Firearms/legislation & jurisprudence ; *Public Policy ; Publishing ; Research/*standards ; Scientific Misconduct ; United States
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  • 88
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    Aging and genome maintenance: lessons from the mouse? (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-03-01
    Description: Recent progress in the science of aging is driven largely by the use of model systems, ranging from yeast and nematodes to mice. These models have revealed conservation in genetic pathways that balance energy production and its damaging by-products with pathways that preserve somatic maintenance. Maintaining genome integrity has emerged as a major factor in longevity and cell viability. Here we discuss the use of mouse models with defects in genome maintenance for understanding the molecular basis of aging in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hasty, Paul -- Campisi, Judith -- Hoeijmakers, Jan -- van Steeg, Harry -- Vijg, Jan -- AG17242/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2003 Feb 28;299(5611):1355-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Medicine, University of Texas Health Science Center, San Antonio, TX 78245, USA. hastye@uthscsa.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12610296" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging/genetics ; Aging, Premature/*genetics ; Animals ; Apoptosis ; Cell Aging ; *DNA Damage ; DNA Helicases/genetics/metabolism ; *DNA Repair/genetics ; Exodeoxyribonucleases ; *Genome ; Genome, Human ; Humans ; Longevity/genetics ; Mice ; Mutation ; Reactive Oxygen Species/metabolism ; RecQ Helicases ; Syndrome ; Telomere/physiology ; Transcription, Genetic
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  • 89
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    Comment on "Obesity and the environment: where do we go from here?" (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-08-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Butte, Nancy F -- Ellis, Kenneth J -- New York, N.Y. -- Science. 2003 Aug 1;301(5633):598; author reply 598.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Baylor College of Medicine, 1100 Bates Street, Houston, TX 77030, USA. nbutte@bcm.tmc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12893926" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Body Mass Index ; Child ; Diet ; *Energy Intake ; *Energy Metabolism ; *Exercise ; Feeding Behavior ; Humans ; Life Style ; *Obesity/epidemiology/prevention & control ; United States/epidemiology ; *Weight Gain
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  • 90
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    AIDS and Africa: still a sad story (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kennedy, Donald -- New York, N.Y. -- Science. 2003 May 16;300(5622):1053.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12750481" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*economics/epidemiology/prevention & ; control/transmission ; Africa/epidemiology ; Disease Outbreaks/economics ; Financing, Government ; Health Care Costs ; Humans ; Infectious Disease Transmission, Vertical/prevention & control ; South Africa/epidemiology ; United States
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  • 91
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    Crystal structure of the GpIbalpha-thrombin complex essential for platelet aggregation (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-07-12
    Description: Direct interaction between platelet receptor glycoprotein Ibalpha (GpIbalpha) and thrombin is required for platelet aggregation and activation at sites of vascular injury. Abnormal GpIbalpha-thrombin binding is associated with many pathological conditions,including occlusive arterial thrombosis and bleeding disorders. The crystal structure of the GpIbalpha-thrombin complex at 2.6 angstrom resolution reveals simultaneous interactions of GpIbalpha with exosite I of one thrombin molecule,and with exosite II of a second thrombin molecule. In the crystal lattice,the periodic arrangement of GpIbalpha-thrombin complexes mirrors a scaffold that could serve as a driving force for tight platelet adhesion. The details of these interactions reconcile GpIbalpha-thrombin binding modes that are presently controversial,highlighting two distinct interfaces that are potential targets for development of novel antithrombotic drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dumas, John J -- Kumar, Ravindra -- Seehra, Jasbir -- Somers, William S -- Mosyak, Lidia -- New York, N.Y. -- Science. 2003 Jul 11;301(5630):222-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemical and Screening Sciences, Wyeth, 200 Cambridge Park Drive, Cambridge, MA 02140, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12855811" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Blood Platelets/chemistry/physiology ; Crystallization ; Crystallography, X-Ray ; Humans ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Models, Molecular ; Platelet Adhesiveness ; *Platelet Aggregation ; Platelet Glycoprotein GPIb-IX Complex/*chemistry/*metabolism ; Protein Binding ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Thrombin/*chemistry/*metabolism
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  • 92
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    An uncertain partnership (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-11-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mulcahy, R Timothy -- New York, N.Y. -- Science. 2003 Nov 7;302(5647):949.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14605331" target="_blank"〉PubMed〈/a〉
    Keywords: Biomedical Research/*legislation & jurisprudence ; Bioterrorism/*legislation & jurisprudence/prevention & control ; *Government Regulation ; *Security Measures ; United States ; *Universities
    Print ISSN: 0036-8075
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  • 93
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    Molecular pathways of neurodegeneration in Parkinson's disease (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-11-01
    Description: Parkinson's disease (PD) is a complex disorder with many different causes, yet they may intersect in common pathways, raising the possibility that neuroprotective agents may have broad applicability in the treatment of PD. Current evidence suggests that mitochondrial complex I inhibition may be the central cause of sporadic PD and that derangements in complex I cause alpha-synuclein aggregation, which contributes to the demise of dopamine neurons. Accumulation and aggregation of alpha-synuclein may further contribute to the death of dopamine neurons through impairments in protein handling and detoxification. Dysfunction of parkin (a ubiquitin E3 ligase) and DJ-1 could contribute to these deficits. Strategies aimed at restoring complex I activity, reducing oxidative stress and alpha-synuclein aggregation, and enhancing protein degradation may hold particular promise as powerful neuroprotective agents in the treatment of PD.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dawson, Ted M -- Dawson, Valina L -- NS38377/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 Oct 31;302(5646):819-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA. tdawson@jhmi.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14593166" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Brain/*metabolism/pathology ; Cysteine Endopeptidases/metabolism ; Dopamine/metabolism ; Electron Transport Complex I/antagonists & inhibitors/genetics/*metabolism ; Humans ; Mitochondria/enzymology ; Multienzyme Complexes/metabolism ; Mutation ; Nerve Degeneration ; Nerve Tissue Proteins/chemistry/genetics/metabolism ; Neurons/*metabolism/pathology ; Oxidative Stress ; Parkinson Disease/*etiology/genetics/metabolism/pathology ; Parkinsonian Disorders/genetics/metabolism/pathology ; Proteasome Endopeptidase Complex ; Synucleins ; Ubiquitin/metabolism ; Ubiquitin-Protein Ligases/genetics/metabolism ; alpha-Synuclein
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  • 94
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    Chromosomal speciation (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-08-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bowers, Evelyn J -- New York, N.Y. -- Science. 2003 Aug 8;301(5634):764-5; author reply 764-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12907779" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosomes, Human/genetics ; Chromosomes, Human, Pair 2/genetics ; Chromosomes, Mammalian/*genetics ; Evolution, Molecular ; Genetics, Population ; Hominidae/*genetics ; Humans ; Pan troglodytes/*genetics ; *Recombination, Genetic ; *Selection, Genetic ; Translocation, Genetic
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  • 95
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    Polyubiquitination of p53 by a ubiquitin ligase activity of p300 (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-04-12
    Description: Rapid turnover of the tumor suppressor protein p53 requires the MDM2 ubiquitin ligase, and both interact with p300-CREB-binding protein transcriptional coactivator proteins. p53 is stabilized by the binding of p300 to the oncoprotein E1A, suggesting that p300 regulates p53 degradation. Purified p300 exhibited intrinsic ubiquitin ligase activity that was inhibited by E1A. In vitro, p300 with MDM2 catalyzed p53 polyubiquitination, whereas MDM2 catalyzed p53 monoubiquitination. E1A expression caused a decrease in polyubiquitinated but not monoubiquitinated p53 in cells. Thus, generation of the polyubiquitinated forms of p53 that are targeted for proteasome degradation requires the intrinsic ubiquitin ligase activities of MDM2 and p300.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grossman, Steven R -- Deato, Maria E -- Brignone, Chrystelle -- Chan, Ho Man -- Kung, Andrew L -- Tagami, Hideaki -- Nakatani, Yoshihiro -- Livingston, David M -- CA15751/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2003 Apr 11;300(5617):342-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12690203" target="_blank"〉PubMed〈/a〉
    Keywords: Adenovirus E1A Proteins/metabolism ; Animals ; Catalysis ; Cells, Cultured ; E1A-Associated p300 Protein ; Embryo, Mammalian ; Fibroblasts/metabolism ; Humans ; Ligases/antagonists & inhibitors/metabolism ; Mice ; Nuclear Proteins/antagonists & inhibitors/*metabolism ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-mdm2 ; Recombinant Fusion Proteins/metabolism ; Recombinant Proteins/metabolism ; Trans-Activators/antagonists & inhibitors/*metabolism ; Transfection ; Tumor Cells, Cultured ; Tumor Suppressor Protein p53/*metabolism ; Ubiquitin-Protein Ligases ; Ubiquitins/*metabolism
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  • 96
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    Calculating the benefits of regulation (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roelofs, Cora R -- Ellenbecker, Michael J -- New York, N.Y. -- Science. 2003 May 30;300(5624):1372.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12775824" target="_blank"〉PubMed〈/a〉
    Keywords: Cost-Benefit Analysis ; Environmental Health ; *Government Regulation ; *Health ; Humans ; Safety ; United States ; *United States Occupational Safety and Health Administration ; *Value of Life
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  • 97
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    Polymer replicas of photonic porous silicon for sensing and drug delivery applications (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-03-29
    Description: Elaborate one-dimensional photonic crystals are constructed from a variety of organic and biopolymers, which can be dissolved or melted, by templating the solution-cast or injection-molded materials in porous silicon or porous silicon dioxide multilayer (rugate dielectric mirror) structures. After the removal of the template by chemical dissolution, the polymer castings replicate the photonic features and the nanostructure of the master. We demonstrate that these castings can be used as vapor sensors, as deformable and tunable optical filters, and as self-reporting, bioresorbable materials.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Yang Yang -- Cunin, Frederique -- Link, Jamie R -- Gao, Ting -- Betts, Ronald E -- Reiver, Sarah H -- Chin, Vicki -- Bhatia, Sangeeta N -- Sailor, Michael J -- New York, N.Y. -- Science. 2003 Mar 28;299(5615):2045-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, Department 0358, La Jolla, CA 92093-0358, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12663921" target="_blank"〉PubMed〈/a〉
    Keywords: *Biocompatible Materials ; Caffeine ; *Drug Delivery Systems ; Ethanol ; Humans ; Hydrogen-Ion Concentration ; Hydrolysis ; Light ; *Nanotechnology ; Optics and Photonics ; Oxidation-Reduction ; Polyesters/chemistry ; Polyethylene/chemistry ; *Polymers ; Polystyrenes/chemistry ; Porosity ; *Silicon/chemistry ; Silicon Dioxide/chemistry ; Spectrum Analysis ; Volatilization
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  • 98
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    Reversing the inactivation of peroxiredoxins caused by cysteine sulfinic acid formation (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-04-26
    Description: The active-site cysteine of peroxiredoxins is selectively oxidized to cysteine sulfinic acid during catalysis, which leads to inactivation of peroxidase activity. This oxidation was thought to be irreversible. However, by metabolic labeling of mammalian cells with 35S, we show that the sulfinic form of peroxiredoxin I, produced during the exposure of cells to H2O2, is rapidly reduced to the catalytically active thiol form. The mammalian cells' ability to reduce protein sulfinic acid might serve as a mechanism to repair oxidatively damaged proteins or represent a new type of cyclic modification by which the function of various proteins is regulated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Woo, Hyun Ae -- Chae, Ho Zoon -- Hwang, Sung Chul -- Yang, Kap-Seok -- Kang, Sang Won -- Kim, Kanghwa -- Rhee, Sue Goo -- New York, N.Y. -- Science. 2003 Apr 25;300(5619):653-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Cell Signaling Research and Division of Molecular Life Sciences, Ewha Womans University, Seoul 120-750, Korea.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12714748" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Catalysis ; Cell Line ; Cycloheximide/pharmacology ; Cysteine/*analogs & derivatives/*metabolism ; Dimerization ; HeLa Cells ; Humans ; Hydrogen Peroxide/*metabolism ; Methionine/metabolism ; Mice ; Neurotransmitter Agents ; Oxidation-Reduction ; Peroxidases/chemistry/*metabolism ; Peroxiredoxins ; Protein Synthesis Inhibitors/pharmacology ; Spectrometry, Mass, Electrospray Ionization ; Sulfhydryl Compounds/metabolism ; Sulfinic Acids/metabolism ; Tumor Cells, Cultured
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  • 99
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    Chromosomal instability and tumors promoted by DNA hypomethylation (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-04-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eden, Amir -- Gaudet, Francois -- Waghmare, Alpana -- Jaenisch, Rudolf -- CA87869/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2003 Apr 18;300(5618):455.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Massachusetts Institute of Technology, Nine Cambridge Center, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12702868" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosomes, Mammalian/*genetics/physiology ; DNA (Cytosine-5-)-Methyltransferase/genetics/metabolism ; *DNA Methylation ; Fibroblasts/metabolism ; Genes, Neurofibromatosis 1 ; Genes, p53 ; Humans ; *Loss of Heterozygosity ; Mice ; Mutation ; Neoplasms/genetics ; Recombination, Genetic ; Sarcoma/*genetics ; Soft Tissue Neoplasms/*genetics
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  • 100
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    Closing of the nucleotide pocket of kinesin-family motors upon binding to microtubules (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-06
    Description: We have used adenosine diphosphate analogs containing electron paramagnetic resonance (EPR) spin moieties and EPR spectroscopy to show that the nucleotide-binding site of kinesin-family motors closes when the motor.diphosphate complex binds to microtubules. Structural analyses demonstrate that a domain movement in the switch 1 region at the nucleotide site, homologous to domain movements in the switch 1 region in the G proteins [heterotrimeric guanine nucleotide-binding proteins], explains the EPR data. The switch movement primes the motor both for the free energy-yielding nucleotide hydrolysis reaction and for subsequent conformational changes that are crucial for the generation of force and directed motion along the microtubule.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Naber, Nariman -- Minehardt, Todd J -- Rice, Sarah -- Chen, Xiaoru -- Grammer, Jean -- Matuska, Marija -- Vale, Ronald D -- Kollman, Peter A -- Car, Roberto -- Yount, Ralph G -- Cooke, Roger -- Pate, Edward -- AR39643/AR/NIAMS NIH HHS/ -- AR42895/AR/NIAMS NIH HHS/ -- DK05915/DK/NIDDK NIH HHS/ -- GM29072/GM/NIGMS NIH HHS/ -- RR1081/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2003 May 2;300(5620):798-801.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of California, San Francisco, CA 94143, USA. naber@itsa.ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12730601" target="_blank"〉PubMed〈/a〉
    Keywords: Adenine Nucleotides/*metabolism ; Adenosine Diphosphate/analogs & derivatives/metabolism ; Adenosine Triphosphate/analogs & derivatives/metabolism ; Animals ; Binding Sites ; Computer Simulation ; Crystallography, X-Ray ; *Drosophila Proteins ; Drosophila melanogaster ; Electron Spin Resonance Spectroscopy ; Humans ; Hydrogen Bonding ; Hydrolysis ; Kinesin/*chemistry/*metabolism ; Microtubules/*metabolism ; Models, Molecular ; Molecular Motor Proteins/*chemistry/*metabolism ; Molecular Probes/metabolism ; Protein Conformation ; Spin Labels
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