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  • Humans  (7,383)
  • Astronomy  (2,041)
  • United States  (2,028)
  • 2005-2009  (6,438)
  • 1995-1999  (4,111)
  • 1
    Unknown
    Radiation Safety Problems in the Caspian Region (2005)
    Dordrecht : Springer
    Details
    Keywords: Astronomy ; Cardiology ; Chemistry, Physical organic ; Nuclear chemistry ; Radiology, Medical
    ISBN: 9781402023781
    URL: https://doi.org/10.1007/1-4020-2378-2
    Language: English
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  • 2
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    Natural Fullerenes and Related Structures of Elemental Carbon (2006)
    Dordrecht : Springer
    Details
    Keywords: Astronomy ; Chemistry, Physical organic ; Geochemistry ; Life sciences ; Planetology ; Plasma (Ionized gases)
    ISBN: 9781402041358
    URL: https://doi.org/10.1007/1-4020-4135-7
    Language: English
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  • 3
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    Estimated annual economic impacts from harmful algal blooms (HABs) in the United States (2005)
    Woods Hole Oceanographic Institution
    Details
    Publication Date: 2022-05-25
    Description: Blooms of toxic or harmful microalgae, commonly called "red tides," represent a significant and expanding threat to human health and fisheries resources throughout the United States and the world. Ecological, aesthetic, and public health impacts include: mass mortalities of wild and farmed fish and shellfish, human intoxication and death from the consumption of contaminated shellfish or fish, alterations of marine food webs through adverse effects on larvae and other life history stages of commercial fish species, the noxious smell and appearance of algae accumulated in nearshore waters or deposited on beaches, and mass mortalities of marine mammals, seabirds, and other animals. In this report, we provide an estimate of the economic impacts of HABs in the United States from events where such impacts were measurable with a fair degree of confidence during the interval 1987-92. The total economic impact averaged $49 million per year, with public health impacts representing the largest component (45 percent). Commercial fisheries impacts were the next largest (37 percent of the total), while recreation/tourism accounted for 13 percent, and monitoring/management impacts 4 percent. These estimates are highly conservative, as many economic costs or impacts from HABs could not be estimated.
    Description: Funding was provided by the National Oceanic and Atmospheric Administration under Grants No. NA46RG0470 and NA90AA-D-SG480, the National Science Foundation under Grant No. OCE-9321244, and the Johnson Endowment of the Marine Policy Center.
    Keywords: Harmful algal blooms ; HABs ; Red tides ; Economic impacts ; Brown tides ; United States
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
    Format: 8091490 bytes
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  • 4
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    Can humans & coastal landforms co-exist? : proceedings of a workshop held at the Woods Hole Oceanographic Institution, Woods Hole, MA January 24, 2001 (2005)
    Woods Hole Oceanographic Institution
    Details
    Publication Date: 2022-05-25
    Description: The primary objective of this publication is to share with a wider audience the valuable information and extensive dialogue that took place amongst over 140 individuals who attended the second in a series of planned workshops on the science and management of coastal landforms in Massachusetts. This workshop took place at the Woods Hole Oceanographic Institution on January 24, 2001. The individuals who attended this workshop are actively engaged in planning, managing, regulating, engineering, educating, and studying coastal landforms and their beneficial functions. This workshop titled, Can Humans & Coastal Landforms Co-exist?’, was a natural follow-up to a previous workshop, Coastal Landform Management in Massachusetts, held at WHOI October 9-10, 1997 (proceedings published as WHOI Technical Report #WHOI-98-16). The workshop had a very practical, applied focus, providing state-of-the-art scientific understanding of coastal landform function, case history management and regulation of human activities proposed on coastal landforms, a multi-faceted mock conservation commission hearing presented by practicing technical consultants and attorneys that involved all attendees acting as regulators in breakout sessions, and, at the conclusion of the workshop, an open discussion on all issues related to the science and management of coastal landforms, including future research needs.
    Description: Funding for these proceedings was provided by WHOI Sea Grant and the NOAA National Sea Grant College Program Office, Department of Commerce, under NOAA Grant No. M10-2, Woods Hole Oceanographic Institution Sea Grant Project No. NA86R60075.
    Keywords: Coastal ; Landforms ; Humans
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 5
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    Developing a national marine electronics agenda : proceedings of the Marine Instrumentation Panel meeting, September 12-14, 1989 (2006)
    Woods Hole Oceanographic Institution
    Details
    Publication Date: 2022-05-26
    Description: Thirteen short papers address aspects of competitiveness in the marine electronics instrumentation industry. Topics include activity and status of government initiatives in Japan and Europe to promote this industry; and the possible role of federal-state collaboration in the U.S. Papers address technology transfer between research institutions and the commercial sector; the role of "strategic alliances" in this process; and the "dual-use" concept in effective technology development and commercialization. Other papers address electronic technology applications in speific marine areas, such as the use and implications of the COMSAT mobile satellite communication infrastructure; electronic charts and safety of tanker operations; and instrumentation applications in aquaculture and environmental monitoring.
    Description: Funding was provided by the National Oceanic and Atmospheric Administration through a grant to the Massachusetts Centers of Excellence Corporation, grant No. NA87-AA-D-M00037.
    Keywords: Marine electronics ; Marine instruments ; Competitiveness ; Commercialization ; Marine economics ; State economic initiatives ; Technology transfer ; R&D ; Japan ; Europe ; United States ; Massachusetts ; Hawaii ; Aquaculture ; Tanker safety
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 6
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    Data file : continental margin program : Atlantic coast of the United States: vol. 1: sample collection data; supplement 1 (2008)
    Woods Hole Oceanographic Institution
    Details
    Publication Date: 2022-05-26
    Description: Originally issued as Reference No. 67-21
    Description: This supplement to Volume I of the Data File, Continental Margin, Atlantic Coast of the United States (Woods Hole Oceanographic Institution Ref. No. 66-8) consists of three parts: 1. Errata for Volume I, 2. New station and sample data added to the file, and 3. Miscellaneous tables of information pertaining to the file. The user is referred to Volume I for explanation of the headings and abbreviations used and for a discussion of the structure of the file.
    Description: Submitted to the U.S. Geological Survey under Contract No. 14-08-0001-8358.
    Keywords: Continental margins ; Oceanography ; United States
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 7
    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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  • 8
    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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  • 9
    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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  • 10
    Electronic Resource
    Electronic Resource
    Measurements of the direction of the solar wind using interplanetary scintillation (1998)
    Springer
    Annales geophysicae 16 (1998), S. 1259-1264 
    Details
    ISSN: 0992-7689
    Keywords: Solar physics ; Astrophysics ; Astronomy ; Magnetic fields ; Space plasma physics ; Charged particle motion and acceleration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract EISCAT observations of the interplanetary scintillation of a single source were made over an extended period of time, during which the orientation of the baselines between the two observing sites changed significantly. Assuming that maximum correlation between the scintillations observed at the two sites occurs when the projected baseline is parallel to the direction of plasma flow, this technique can be used to make a unique determination of the direction of the solar wind. In the past it has usually been assumed that the plasma flow is radial, but measurements of eleven sources using this technique have indicated conclusively that in at least six cases observed at mid or high heliocentric latitude there is a significant non-radial component directed in four cases towards the heliocentric equator and in two cases towards the pole.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s00585-998-1259-3
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  • 11
    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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  • 12
    Electronic Resource
    Electronic Resource
    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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/B:MITI.0000027388.65532.60
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  • 13
    Electronic Resource
    Electronic Resource
    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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009730702302
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  • 14
    Electronic Resource
    Electronic Resource
    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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00045196
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  • 15
    Electronic Resource
    Electronic Resource
    Automated analysis and exploration of image databases: Results, progress, and challenges (1995)
    Springer
    Journal of intelligent information systems 4 (1995), S. 7-25 
    Details
    ISSN: 1573-7675
    Keywords: Machine Learning ; Pattern Recognition ; Automated Data Analysis ; Astronomy ; Sky Surveys ; Image Processing ; Large Image Databases
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract In areas as diverse as earth remote sensing, astronomy, and medical imaging, image acquisition technology has undergone tremendous improvements in recent years. The vast amounts of scientific data are potential treasure-troves for scientific investigation and analysis. Unfortunately, advances in our ability to deal with this volume of data in an effective manner have not paralleled the hardware gains. While special-purpose tools for particular applications exist, there is a dearth of useful general-purpose software tools and algorithms which can assist a scientist in exploring large scientific image databases. This paper presents our recent progress in developing interactive semi-automated image database exploration tools based on pattern recognition and machine learning technology. We first present a completed and successful application that illustrates the basic approach: the SKICAT system used for the reduction and analysis of a 3 terabyte astronomical data set. SKICAT integrates techniques from image processing, data classification, and database management. It represents a system in which machine learning played a powerful and enabling role, and solved a difficult, scientifically significant problem. We then proceed to discuss the general problem of automated image database exploration, the particular aspects of image databases which distinguish them from other databases, and how this impacts the application of off-the-shelf learning algorithms to problems of this nature. A second large image database is used to ground this discussion: Magellan's images of the surface of the planet Venus. The paper concludes with a discussion of current and future challenges.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00962819
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  • 16
    Electronic Resource
    Electronic Resource
    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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00924972
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  • 17
    Electronic Resource
    Electronic Resource
    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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00464888
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  • 18
    Electronic Resource
    Electronic Resource
    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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100710050004
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  • 19
    Electronic Resource
    Electronic Resource
    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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1022126704750
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  • 20
    Electronic Resource
    Electronic Resource
    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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02404746
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  • 21
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    Metastasis in eggs (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sikorski, R -- Peters, R -- New York, N.Y. -- Science. 1998 Sep 18;281(5384):1823.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9776688" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Vessels/physiology ; Chick Embryo ; *Chorion/blood supply ; Humans ; Metalloendopeptidases/metabolism ; *Neoplasm Metastasis ; Neoplasm Seeding ; *Polymerase Chain Reaction ; Receptors, Cell Surface/metabolism ; Receptors, Urokinase Plasminogen Activator ; Tumor Cells, Cultured
    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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    Quantitation of HIV-1-specific cytotoxic T lymphocytes and plasma load of viral RNA (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-04-16
    Description: Although cytotoxic T lymphocytes (CTLs) are thought to be involved in the control of human immunodeficiency virus-type 1 (HIV-1) infection, it has not been possible to demonstrate a direct relation between CTL activity and plasma RNA viral load. Human leukocyte antigen-peptide tetrameric complexes offer a specific means to directly quantitate circulating CTLs ex vivo. With the use of the tetrameric complexes, a significant inverse correlation was observed between HIV-specific CTL frequency and plasma RNA viral load. In contrast, no significant association was detected between the clearance rate of productively infected cells and frequency of HIV-specific CTLs. These data are consistent with a significant role for HIV-specific CTLs in the control of HIV infection and suggest a considerable cytopathic effect of the virus in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ogg, G S -- Jin, X -- Bonhoeffer, S -- Dunbar, P R -- Nowak, M A -- Monard, S -- Segal, J P -- Cao, Y -- Rowland-Jones, S L -- Cerundolo, V -- Hurley, A -- Markowitz, M -- Ho, D D -- Nixon, D F -- McMichael, A J -- MO1-RR00102/RR/NCRR NIH HHS/ -- U01AI41534/AI/NIAID NIH HHS/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1998 Mar 27;279(5359):2103-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Medicine, Nuffield Department of Medicine, Oxford OX3 9DS, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9516110" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-HIV Agents/therapeutic use ; CD4 Lymphocyte Count ; Coloring Agents ; Cytopathogenic Effect, Viral ; Cytotoxicity, Immunologic ; Flow Cytometry ; Gene Products, gag ; Gene Products, pol ; HIV Infections/drug therapy/*immunology/*virology ; HIV-1/genetics/*physiology ; HLA-A Antigens ; Humans ; Lymphocyte Count/*methods ; Oligopeptides ; RNA, Viral/*blood ; Sensitivity and Specificity ; T-Lymphocytes, Cytotoxic/*immunology ; Viral Load ; Viremia
    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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    Which of our genes makes us human? (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-09-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, A -- New York, N.Y. -- Science. 1998 Sep 4;281(5382):1432-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9750111" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Mapping ; *Chromosomes, Human ; Gene Expression ; *Genome ; *Genome, Human ; Hominidae/*genetics ; *Human Characteristics ; Humans ; Mutation ; Pan troglodytes/genetics ; *Sequence Analysis, DNA ; Sialic Acids/chemistry/physiology ; Species Specificity
    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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    Coupling of Ras and Rac guanosine triphosphatases through the Ras exchanger Sos (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-07
    Description: The Son of Sevenless (Sos) proteins control receptor-mediated activation of Ras by catalyzing the exchange of guanosine diphosphate for guanosine triphosphate on Ras. The NH2-terminal region of Sos contains a Dbl homology (DH) domain in tandem with a pleckstrin homology (PH) domain. In COS-1 cells, the DH domain of Sos stimulated guanine nucleotide exchange on Rac but not Cdc42 in vitro and in vivo. The tandem DH-PH domain of Sos (DH-PH-Sos) was defective in Rac activation but regained Rac stimulating activity when it was coexpressed with activated Ras. Ras-mediated activation of DH-PH-Sos did not require activation of mitogen-activated protein kinase but it was dependent on activation of phosphoinositide 3-kinase. These results reveal a potential mechanism for coupling of Ras and Rac signaling pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nimnual, A S -- Yatsula, B A -- Bar-Sagi, D -- CA09176/CA/NCI NIH HHS/ -- CA28146/CA/NCI NIH HHS/ -- CA55360/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Jan 23;279(5350):560-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Microbiology, State University of New York at Stony Brook, Stony Brook, NY 11794, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9438849" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/metabolism ; Animals ; COS Cells ; Calcium-Calmodulin-Dependent Protein Kinases/metabolism ; Cell Cycle Proteins/metabolism ; Cell Line ; Cell Membrane/ultrastructure ; Enzyme Activation ; GTP Phosphohydrolases/*metabolism ; GTP-Binding Proteins/*metabolism ; Guanine Nucleotide Exchange Factors ; Guanosine Diphosphate/metabolism ; Guanosine Triphosphate/metabolism ; Humans ; JNK Mitogen-Activated Protein Kinases ; Membrane Proteins/chemistry/*metabolism ; *Mitogen-Activated Protein Kinases ; Proteins/metabolism ; Proto-Oncogene Proteins ; Recombinant Fusion Proteins/metabolism ; Retroviridae Proteins, Oncogenic/chemistry ; Signal Transduction ; Son of Sevenless Proteins ; Transfection ; cdc42 GTP-Binding Protein ; rac GTP-Binding Proteins ; ras Guanine Nucleotide Exchange Factors ; ras Proteins/*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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    Essential role of CED-4 oligomerization in CED-3 activation and apoptosis (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-08-28
    Description: Control of the activation of apoptosis is important both in development and in protection against cancer. In the classic genetic model Caenorhabditis elegans, the pro-apoptotic protein CED-4 activates the CED-3 caspase and is inhibited by the Bcl-2-like protein CED-9. Both processes are mediated by protein-protein interaction. Facilitating the proximity of CED-3 zymogen molecules was found to induce caspase activation and cell death. CED-4 protein oligomerized in cells and in vitro. This oligomerization induced CED-3 proximity and competed with CED-4:CED-9 interaction. Mutations that abolished CED-4 oligomerization inactivated its ability to activate CED-3. Thus, the mechanism of control is that CED-3 in CED-3:CED-4 complexes is activated by CED-4 oligomerization, which is inhibited by binding of CED-9 to CED-4.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yang, X -- Chang, H Y -- Baltimore, D -- CA51462/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Aug 28;281(5381):1355-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9721101" target="_blank"〉PubMed〈/a〉
    Keywords: *Apoptosis ; Apoptosis Regulatory Proteins ; Biopolymers ; *Caenorhabditis elegans Proteins ; Calcium-Binding Proteins/*chemistry/genetics/*metabolism ; *Caspases ; Cell Line ; Chemistry, Physical ; Cysteine Endopeptidases/*metabolism ; Cysteine Proteinase Inhibitors/pharmacology ; Enzyme Activation ; Enzyme Precursors/metabolism ; HeLa Cells ; Helminth Proteins/*chemistry/genetics/*metabolism ; Humans ; Mutation ; Oligopeptides/pharmacology ; Physicochemical Phenomena ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-bcl-2/metabolism ; Recombinant Fusion Proteins/metabolism ; Tacrolimus/pharmacology ; Transfection ; bcl-X Protein
    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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    Structure and function in the nucleus (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-09
    Description: Current evidence suggests that the nucleus has a distinct substructure, albeit one that is dynamic rather than a rigid framework. Viral infection, oncogene expression, and inherited human disorders can each cause profound and specific changes in nuclear organization. This review summarizes recent progress in understanding nuclear organization, highlighting in particular the dynamic aspects of nuclear structure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lamond, A I -- Earnshaw, W C -- 073915/Wellcome Trust/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1998 Apr 24;280(5363):547-53.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Dundee, Dundee DD1 4HN, Scotland, UK. a.i.lamond@dundee.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9554838" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Nucleolus/physiology/ultrastructure ; Cell Nucleus/chemistry/*physiology/*ultrastructure ; Chromatin/physiology ; Chromosomes/physiology ; *Drosophila Proteins ; Euchromatin ; Gene Expression Regulation ; Heterochromatin/physiology ; Humans ; Insect Proteins/chemistry/physiology ; Interphase ; Neoplasm Proteins/chemistry/physiology ; *Nuclear Proteins ; Polycomb Repressive Complex 1 ; Polycomb-Group Proteins ; Repressor Proteins/chemistry/physiology ; Ribonucleoproteins, Small Nuclear/analysis/physiology ; Transcription Factors/chemistry/physiology ; Tumor Suppressor Proteins
    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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    Anthropologists probe genes, brains at annual meeting (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, A -- New York, N.Y. -- Science. 1998 Apr 17;280(5362):380-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9575083" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Anthropology, Physical ; Biological Evolution ; Brain/*anatomy & histology ; Computer Simulation ; DNA, Mitochondrial/genetics ; Female ; *Genetics, Population ; *Hinduism/history ; History, Ancient ; Hominidae/*anatomy & histology ; Humans ; India ; Male ; Models, Anatomic ; Y Chromosome/genetics
    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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    Calibrating the mitochondrial clock (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-01-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, A -- New York, N.Y. -- Science. 1998 Jan 2;279(5347):28-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9441404" target="_blank"〉PubMed〈/a〉
    Keywords: DNA Fingerprinting ; DNA, Mitochondrial/*genetics ; *Evolution, Molecular ; Forensic Medicine ; Humans ; *Mutation ; Point Mutation ; *Polymorphism, 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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    The HIV-1 envelope glycoproteins: fusogens, antigens, and immunogens (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-25
    Description: The human immunodeficiency virus-type 1 (HIV-1) envelope glycoproteins interact with receptors on the target cell and mediate virus entry by fusing the viral and cell membranes. The structure of the envelope glycoproteins has evolved to fulfill these functions while evading the neutralizing antibody response. An understanding of the viral strategies for immune evasion should guide attempts to improve the immunogenicity of the HIV-1 envelope glycoproteins and, ultimately, aid in HIV-1 vaccine development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wyatt, R -- Sodroski, J -- AI 31783/AI/NIAID NIH HHS/ -- AI 39420/AI/NIAID NIH HHS/ -- AI28691/AI/NIAID NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1998 Jun 19;280(5371):1884-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cancer Immunology/AIDS, Dana-Farber Cancer Institute, Department of Pathology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9632381" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines/chemistry/immunology ; Animals ; Gene Products, env/chemistry/immunology/*physiology ; HIV Antibodies/biosynthesis ; HIV Antigens/immunology ; HIV Envelope Protein gp41/physiology ; HIV Infections/*immunology ; HIV-1/chemistry/immunology/*physiology ; Humans ; Membrane Fusion ; Receptors, HIV/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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    Anterior cingulate cortex, error detection, and the online monitoring of performance (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-23
    Description: An unresolved question in neuroscience and psychology is how the brain monitors performance to regulate behavior. It has been proposed that the anterior cingulate cortex (ACC), on the medial surface of the frontal lobe, contributes to performance monitoring by detecting errors. In this study, event-related functional magnetic resonance imaging was used to examine ACC function. Results confirm that this region shows activity during erroneous responses. However, activity was also observed in the same region during correct responses under conditions of increased response competition. This suggests that the ACC detects conditions under which errors are likely to occur rather than errors themselves.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, C S -- Braver, T S -- Barch, D M -- Botvinick, M M -- Noll, D -- Cohen, J D -- K08MH01306/MH/NIMH NIH HHS/ -- R01MH52864/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1998 May 1;280(5364):747-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Western Psychiatric Institute and Clinic, School of Medicine, University of Pittsburgh, 3811 O'Hara Street, Pittsburgh, PA 15213, USA. cscarter+@pitt.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9563953" target="_blank"〉PubMed〈/a〉
    Keywords: Brain Mapping ; Cognition/*physiology ; Frontal Lobe/*physiology ; Gyrus Cinguli/*physiology ; Humans ; Magnetic Resonance Imaging
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    New potential for human embryonic stem cells (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gearhart, J -- New York, N.Y. -- Science. 1998 Nov 6;282(5391):1061-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Gynecology and Obstetrics, Johns Hopkins Medicine, Baltimore, MD 21287, USA. gearhart@jhmi.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9841453" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastocyst/*cytology ; *Cell Culture Techniques ; Cell Differentiation ; *Cell Line ; Cell Lineage ; *Embryo Research ; Embryo, Mammalian/*cytology ; Federal Government ; Germ Cells/*cytology ; Government Regulation ; Guidelines as Topic ; Humans ; Major Histocompatibility Complex ; Mice ; Research Support as Topic ; Risk Assessment ; Stem Cell Transplantation ; Stem Cells/*cytology ; Transplantation Immunology ; United States
    Print ISSN: 0036-8075
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    Lead regulation (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldman, L R -- New York, N.Y. -- Science. 1998 Dec 4;282(5395):1825-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9874633" target="_blank"〉PubMed〈/a〉
    Keywords: Child ; Environmental Exposure ; Environmental Pollutants/adverse effects ; Government Agencies ; Humans ; Lead/adverse effects ; Lead Poisoning/*prevention & control ; United States ; 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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    A welcome mat for leprosy and Lassa fever (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spear, P G -- New York, N.Y. -- Science. 1998 Dec 11;282(5396):1999-2000.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Northwestern University Medical School, Department of Microbiology-Immunology, Chicago, IL 60611, USA. p-spear@nwu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9874652" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacterial Adhesion ; Cytoskeletal Proteins/genetics/*metabolism ; Dystroglycans ; Humans ; Laminin/metabolism ; Lassa Fever/*virology ; Lassa virus/*metabolism ; Leprosy/*microbiology ; Lymphocytic choriomeningitis virus/metabolism ; Membrane Glycoproteins/genetics/*metabolism ; Models, Biological ; Mycobacterium leprae/*metabolism ; Receptors, Virus/metabolism ; Schwann Cells/microbiology
    Print ISSN: 0036-8075
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    Molecular basis of T cell inactivation by CTLA-4 (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-18
    Description: CTLA-4, a negative regulator of T cell function, was found to associate with the T cell receptor (TCR) complex zeta chain in primary T cells. The association of TCRzeta with CTLA-4, reconstituted in 293 transfectants, was enhanced by p56(lck)-induced tyrosine phosphorylation. Coexpression of the CTLA-4-associated tyrosine phosphatase, SHP-2, resulted in dephosphorylation of TCRzeta bound to CTLA-4 and abolished the p56(lck)-inducible TCRzeta-CTLA-4 interaction. Thus, CTLA-4 inhibits TCR signal transduction by binding to TCRzeta and inhibiting tyrosine phosphorylation after T cell activation. These findings have broad implications for the negative regulation of T cell function and T cell tolerance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, K M -- Chuang, E -- Griffin, M -- Khattri, R -- Hong, D K -- Zhang, W -- Straus, D -- Samelson, L E -- Thompson, C B -- Bluestone, J A -- P01 AI35294-6/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1998 Dec 18;282(5397):2263-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ben May Institute for Cancer Research, and Committee on Immunology, University of Chicago, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9856951" target="_blank"〉PubMed〈/a〉
    Keywords: Abatacept ; Animals ; Antigens, CD ; Antigens, Differentiation/*metabolism ; CTLA-4 Antigen ; Cell Line ; Cells, Cultured ; Humans ; *Immunoconjugates ; Intracellular Signaling Peptides and Proteins ; *Lymphocyte Activation ; Lymphocyte Specific Protein Tyrosine Kinase p56(lck)/genetics/metabolism ; Membrane Proteins/*metabolism ; Mice ; Mice, Inbred BALB C ; Models, Immunological ; Phosphorylation ; Phosphotyrosine/metabolism ; Protein Tyrosine Phosphatase, Non-Receptor Type 11 ; Protein Tyrosine Phosphatase, Non-Receptor Type 6 ; Protein Tyrosine Phosphatases/genetics/metabolism ; Receptors, Antigen, T-Cell/*metabolism ; Recombinant Fusion Proteins/metabolism ; SH2 Domain-Containing Protein Tyrosine Phosphatases ; *Signal Transduction ; T-Lymphocytes/*immunology ; Transfection ; src Homology Domains
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    Methylmercury risks (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldman, L R -- Farland, W H -- New York, N.Y. -- Science. 1998 Jan 30;279(5351):640-1; author reply 641.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9471723" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Fishes ; *Food Contamination ; Humans ; Maximum Allowable Concentration ; Methylmercury Compounds/*adverse effects ; *Nutrition Policy ; Risk Assessment ; United States ; United States Environmental Protection Agency
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    Freedom of information requests (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gough, M -- New York, N.Y. -- Science. 1998 Dec 4;282(5395):1823.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9874631" target="_blank"〉PubMed〈/a〉
    Keywords: 2,4,5-Trichlorophenoxyacetic Acid/adverse effects ; 2,4-Dichlorophenoxyacetic Acid/adverse effects ; Confidentiality/*legislation & jurisprudence ; Defoliants, Chemical ; Financing, Government ; Humans ; *Public Policy ; Research/*legislation & jurisprudence ; *Research Support as Topic ; Tetrachlorodibenzodioxin/adverse effects ; 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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    Chimp research (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leigh, S R -- New York, N.Y. -- Science. 1998 Oct 2;282(5386):47.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9786794" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Humans ; Pan troglodytes/*genetics/*growth & development ; Research
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Differential use of CREB binding protein-coactivator complexes (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-21
    Description: CREB binding protein (CBP) functions as an essential coactivator of transcription factors that are inhibited by the adenovirus early gene product E1A. Transcriptional activation by the signal transducer and activator of transcription-1 (STAT1) protein requires the C/H3 domain in CBP, which is the primary target of E1A inhibition. Here it was found that the C/H3 domain is not required for retinoic acid receptor (RAR) function, nor is it involved in E1A inhibition. Instead, E1A inhibits RAR function by preventing the assembly of CBP-nuclear receptor coactivator complexes, revealing differences in required CBP domains for transcriptional activation by RAR and STAT1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kurokawa, R -- Kalafus, D -- Ogliastro, M H -- Kioussi, C -- Xu, L -- Torchia, J -- Rosenfeld, M G -- Glass, C K -- New York, N.Y. -- Science. 1998 Jan 30;279(5351):700-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Cellular and Molecular Medicine, Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0651, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9445474" target="_blank"〉PubMed〈/a〉
    Keywords: Adenovirus E1A Proteins/*metabolism/pharmacology ; Animals ; Binding Sites ; CREB-Binding Protein ; Cell Differentiation ; Cell Line ; DNA-Binding Proteins/metabolism ; Histone Acetyltransferases ; Humans ; Mutation ; Nuclear Proteins/chemistry/genetics/*metabolism ; Nuclear Receptor Coactivator 1 ; Nuclear Receptor Coactivator 3 ; Protein Binding ; Receptors, Retinoic Acid/metabolism ; Recombinant Fusion Proteins/metabolism ; STAT1 Transcription Factor ; Trans-Activators/metabolism ; Transcription Factors/chemistry/genetics/*metabolism ; *Transcription, Genetic ; Transcriptional Activation ; Tretinoin/pharmacology
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    The future of long life (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olshansky, S J -- Carnes, B A -- Cassel, C -- New York, N.Y. -- Science. 1998 Sep 11;281(5383):1612-3; author reply 1613-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9767025" target="_blank"〉PubMed〈/a〉
    Keywords: Forecasting ; Humans ; Life Expectancy/*trends ; *Longevity ; Mortality/*trends
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 40
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    Quantum dot bioconjugates for ultrasensitive nonisotopic detection (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-09-25
    Description: Highly luminescent semiconductor quantum dots (zinc sulfide-capped cadmium selenide) have been covalently coupled to biomolecules for use in ultrasensitive biological detection. In comparison with organic dyes such as rhodamine, this class of luminescent labels is 20 times as bright, 100 times as stable against photobleaching, and one-third as wide in spectral linewidth. These nanometer-sized conjugates are water-soluble and biocompatible. Quantum dots that were labeled with the protein transferrin underwent receptor-mediated endocytosis in cultured HeLa cells, and those dots that were labeled with immunomolecules recognized specific antibodies or antigens.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chan, W C -- Nie, S -- New York, N.Y. -- Science. 1998 Sep 25;281(5385):2016-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Indiana University, Bloomington, IN 47405, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9748158" target="_blank"〉PubMed〈/a〉
    Keywords: *Cadmium Compounds/chemistry ; Endocytosis ; *Fluorescent Antibody Technique ; *Fluorescent Dyes ; HeLa Cells ; Humans ; Luminescence ; Molecular Probe Techniques ; Particle Size ; Receptors, Transferrin/metabolism ; *Selenium Compounds/chemistry ; *Semiconductors ; Solubility ; *Sulfides/chemistry ; Transferrin/metabolism ; *Zinc Compounds/chemistry
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Triplet-repeat transcripts: a role for DNA in disease (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Singer, R H -- New York, N.Y. -- Science. 1998 May 1;280(5364):696-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy and Structural Biology, Institute for Molecular Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA. rhsinger@aecom.yu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9599147" target="_blank"〉PubMed〈/a〉
    Keywords: CELF1 Protein ; Cell Nucleus/metabolism ; Exons ; Humans ; Models, Genetic ; Myotonic Dystrophy/*genetics/metabolism ; Myotonin-Protein Kinase ; Protein Binding ; Protein-Serine-Threonine Kinases/*genetics ; *RNA Splicing ; RNA, Messenger/*genetics ; RNA-Binding Proteins/genetics/*metabolism ; Ribonucleoproteins/genetics/*metabolism ; Transcription, Genetic ; Transfection ; *Trinucleotide Repeats ; Troponin/genetics ; Troponin T
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  • 42
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    Actin mutations in dilated cardiomyopathy, a heritable form of heart failure (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-23
    Description: To test the hypothesis that actin dysfunction leads to heart failure, patients with hereditary idiopathic dilated cardiomyopathy (IDC) were examined for mutations in the cardiac actin gene (ACTC). Missense mutations in ACTC that cosegregate with IDC were identified in two unrelated families. Both mutations affect universally conserved amino acids in domains of actin that attach to Z bands and intercalated discs. Coupled with previous data showing that dystrophin mutations also cause dilated cardiomyopathy, these results raise the possibility that defective transmission of force in cardiac myocytes is a mechanism underlying heart failure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olson, T M -- Michels, V V -- Thibodeau, S N -- Tai, Y S -- Keating, M T -- 5-P50-HL-53773/HL/NHLBI NIH HHS/ -- M01-RR00064/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1998 May 1;280(5364):750-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Division of Cardiology, University of Utah Health Sciences Center, Salt Lake City, UT 84112, USA. timo@howard.genetics.utah.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9563954" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/chemistry/*genetics/physiology ; Adolescent ; Adult ; Cardiomyopathy, Dilated/*genetics/metabolism/pathology ; Child ; Child, Preschool ; Chromosomes, Human, Pair 15 ; Exons ; Female ; Heart/physiopathology ; Humans ; Male ; *Mutation ; Myocardium/chemistry/pathology ; Pedigree ; Phenotype ; Polymorphism, Single-Stranded Conformational ; Protein Conformation ; Sarcomeres/physiology
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    Outcomes research: measuring the end results of health care (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clancy, C M -- Eisenberg, J M -- New York, N.Y. -- Science. 1998 Oct 9;282(5387):245-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Outcomes and Effectiveness Research, U.S. Department of Health and Human Services, Rockville, MD 20852, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9841388" target="_blank"〉PubMed〈/a〉
    Keywords: Activities of Daily Living ; Health Status ; Humans ; *Outcome Assessment (Health Care)/trends ; Patient Satisfaction ; Quality of Life ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 44
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    A closer look at SNPs suggests difficulties (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Sep 18;281(5384):1787-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9776677" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Ethnic Groups/genetics ; *Genetic Markers ; Genetic Predisposition to Disease ; *Genetic Techniques ; Genetic Variation ; *Genetics, Medical ; *Genome, Human ; Humans ; Point Mutation ; *Polymorphism, Genetic ; Recombination, Genetic
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  • 45
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    Ribozyme-mediated repair of sickle beta-globin mRNAs in erythrocyte precursors (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-11
    Description: Sickle cell anemia is the most common heritable hematological disease, yet no curative treatment exists for this disorder. Moreover, the intricacies of globin gene expression have made the development of treatments for hemoglobinopathies based on gene therapy difficult. An alternative genetic approach to sickle cell therapy is based on RNA repair. A trans-splicing group I ribozyme was used to alter mutant beta-globin transcripts in erythrocyte precursors derived from peripheral blood from individuals with sickle cell disease. Sickle beta-globin transcripts were converted into messenger RNAs encoding the anti-sickling protein gamma-globin. These results suggest that RNA repair may become a useful approach in the treatment of genetic disorders.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lan, N -- Howrey, R P -- Lee, S W -- Smith, C A -- Sullenger, B A -- HL57606/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1998 Jun 5;280(5369):1593-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Genetic and Cellular Therapies, Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9616120" target="_blank"〉PubMed〈/a〉
    Keywords: Anemia, Sickle Cell/*blood/therapy ; Cloning, Molecular ; Erythroid Precursor Cells/*metabolism ; Exons ; Fetal Blood ; Genetic Therapy ; Globins/*genetics ; Humans ; Mutation ; Polymerase Chain Reaction ; *RNA Splicing ; RNA, Catalytic/genetics/*metabolism ; RNA, Messenger/chemistry/*genetics/metabolism ; Transfection ; Uridine/metabolism
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    Progress in progressive hearing loss (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-04-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steel, K P -- New York, N.Y. -- Science. 1998 Mar 20;279(5358):1870-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council, Institute of Hearing Research, Nottingham NG7 2RD, UK. karen@ihr.mrc.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9537904" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptor Proteins, Signal Transducing ; Animals ; Carrier Proteins/genetics/physiology ; Cell Differentiation ; Chromosome Mapping ; Chromosomes, Human, Pair 5/genetics ; Deafness/*genetics ; Dyneins ; Female ; Gene Targeting ; Genes, Dominant ; Hair Cells, Auditory/physiology ; Hearing Loss, Sensorineural/*genetics ; Homeodomain Proteins/*genetics/metabolism ; Humans ; Male ; Mice ; Myosins/genetics/physiology ; Pedigree ; Sequence Deletion ; Transcription Factor Brn-3C ; Transcription Factors/*genetics/metabolism/physiology
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    A possible new partner for telomerase (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Nov 20;282(5393):1395, 1397.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9867637" target="_blank"〉PubMed〈/a〉
    Keywords: *Cell Aging ; DNA Repair ; DNA Replication ; DNA-Binding Proteins/metabolism ; Humans ; Poly(ADP-ribose) Polymerase Inhibitors ; Poly(ADP-ribose) Polymerases/chemistry/*metabolism ; Telomerase/antagonists & inhibitors/*metabolism ; Telomere/*metabolism
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  • 48
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    Progress in the development of an HIV-1 vaccine (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-25
    Description: Containment of the acquired immunodeficiency syndrome (AIDS) epidemic will require an effective human immunodeficiency virus type 1 (HIV-1) vaccine. Accumulating evidence suggests that such a vaccine must efficiently elicit an HIV-1-specific cytotoxic T lymphocyte (CTL) response. Nonhuman primate models will continue to provide an important tool for assessing the extent of protective immunity induced by various immunization strategies. Although replication-competent AIDS viruses attenuated for pathogenicity by selective gene deletions have provided protective immunity in nonhuman primate models, the long-term safety of such vaccines in human populations is suspect. Inactivated virus and subunit vaccines have elicited neither CTLs nor antibodies capable of neutralizing a wide array of patient HIV-1 isolates. Considerable effort is now being focused on evaluating live vector-based vaccine and plasmid DNA vaccine approaches for preventing HIV-1 infection both in animal model and human studies. Our growing understanding of the biology of HIV-1 and immune responses to this virus will continue to suggest improved vaccination approaches for exploration.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Letvin, N L -- New York, N.Y. -- Science. 1998 Jun 19;280(5371):1875-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The author is at Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA. nletvin@bidmc.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9632379" target="_blank"〉PubMed〈/a〉
    Keywords: *AIDS Vaccines/immunology ; Animals ; Disease Models, Animal ; Genetic Vectors ; HIV Infections/immunology/*prevention & control/therapy/virology ; HIV-1/*immunology/physiology ; Humans ; T-Lymphocytes, Cytotoxic/immunology ; Vaccines, Attenuated/immunology ; Vaccines, DNA/immunology ; Vaccines, Inactivated/immunology ; Vaccines, Synthetic/immunology ; Virus Replication
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  • 49
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    The transcriptional program of sporulation in budding yeast (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-23
    Description: Diploid cells of budding yeast produce haploid cells through the developmental program of sporulation, which consists of meiosis and spore morphogenesis. DNA microarrays containing nearly every yeast gene were used to assay changes in gene expression during sporulation. At least seven distinct temporal patterns of induction were observed. The transcription factor Ndt80 appeared to be important for induction of a large group of genes at the end of meiotic prophase. Consensus sequences known or proposed to be responsible for temporal regulation could be identified solely from analysis of sequences of coordinately expressed genes. The temporal expression pattern provided clues to potential functions of hundreds of previously uncharacterized genes, some of which have vertebrate homologs that may function during gametogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chu, S -- DeRisi, J -- Eisen, M -- Mulholland, J -- Botstein, D -- Brown, P O -- Herskowitz, I -- AI18738/AI/NIAID NIH HHS/ -- GH00450/GH/CGH CDC HHS/ -- GM46406/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Oct 23;282(5389):699-705.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94143-0448, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9784122" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosomes, Fungal/physiology ; *DNA-Binding Proteins ; Fungal Proteins/genetics/metabolism ; *Gene Expression Regulation, Fungal ; Genes, Fungal ; Genome, Fungal ; Humans ; Meiosis/*genetics ; Morphogenesis ; Organelles/ultrastructure ; Saccharomyces cerevisiae/*genetics/physiology ; *Saccharomyces cerevisiae Proteins ; Spores, Fungal/*genetics/physiology/ultrastructure ; Transcription Factors/genetics/metabolism ; *Transcription, Genetic
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    Mitochondria and apoptosis (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-08-28
    Description: A variety of key events in apoptosis focus on mitochondria, including the release of caspase activators (such as cytochrome c), changes in electron transport, loss of mitochondrial transmembrane potential, altered cellular oxidation-reduction, and participation of pro- and antiapoptotic Bcl-2 family proteins. The different signals that converge on mitochondria to trigger or inhibit these events and their downstream effects delineate several major pathways in physiological cell death.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Green, D R -- Reed, J C -- New York, N.Y. -- Science. 1998 Aug 28;281(5381):1309-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉La Jolla Institute for Allergy and Immunology, 10355 Science Center Drive, San Diego, CA 92121, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9721092" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; Cysteine Endopeptidases/metabolism ; Cytochrome c Group/metabolism ; Electron Transport ; Humans ; Intracellular Membranes/metabolism ; Ion Channels/metabolism ; Membrane Potentials ; Mitochondria/*metabolism ; Oxidation-Reduction ; Permeability ; Proto-Oncogene Proteins c-bcl-2/metabolism
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  • 51
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    Protein kinase B kinases that mediate phosphatidylinositol 3,4,5-trisphosphate-dependent activation of protein kinase B (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-21
    Description: Protein kinase B (PKB) is activated in response to phosphoinositide 3-kinases and their lipid products phosphatidylinositol 3,4, 5-trisphosphate [PtdIns(3,4,5)P3] and PtdIns(3,4)P2 in the signaling pathways used by a wide variety of growth factors, antigens, and inflammatory stimuli. PKB is a direct target of these lipids, but this regulation is complex. The lipids can bind to the pleckstrin homologous domain of PKB, causing its translocation to the membrane, and also enable upstream, Thr308-directed kinases to phosphorylate and activate PKB. Four isoforms of these PKB kinases were purified from sheep brain. They bound PtdIns(3,4,5)P3 and associated with lipid vesicles containing it. These kinases contain an NH2-terminal catalytic domain and a COOH-terminal pleckstrin homologous domain, and their heterologous expression augments receptor activation of PKB, which suggests they are the primary signal transducers that enable PtdIns(3,4,5)P3 or PtdIns- (3,4)P2 to activate PKB and hence to control signaling pathways regulating cell survival, glucose uptake, and glycogen metabolism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stephens, L -- Anderson, K -- Stokoe, D -- Erdjument-Bromage, H -- Painter, G F -- Holmes, A B -- Gaffney, P R -- Reese, C B -- McCormick, F -- Tempst, P -- Coadwell, J -- Hawkins, P T -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1998 Jan 30;279(5351):710-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Inositide Laboratory, The Babraham Institute, Babraham, Cambridge CB2 4AT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9445477" target="_blank"〉PubMed〈/a〉
    Keywords: 3-Phosphoinositide-Dependent Protein Kinases ; Alternative Splicing ; Amino Acid Sequence ; Animals ; Cell Line ; Cell Membrane/enzymology ; Cloning, Molecular ; DNA, Complementary ; Drosophila ; Drosophila Proteins ; Enzyme Activation ; Humans ; Liposomes/metabolism ; Molecular Sequence Data ; Open Reading Frames ; Phosphatidylinositol Phosphates/*metabolism ; Phosphorylation ; Platelet-Derived Growth Factor/pharmacology ; Protein-Serine-Threonine Kinases/chemistry/genetics/isolation & ; purification/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-akt ; Rats ; Recombinant Proteins/metabolism ; Sheep ; *Signal Transduction
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    Human monogamy (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clark, G A -- New York, N.Y. -- Science. 1998 Nov 6;282(5391):1047-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9841447" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Culture ; Female ; Hominidae/psychology ; Humans ; Male ; *Sexual Behavior ; Sexual Behavior, Animal ; *Sexual Partners
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    Association of malaria parasite population structure, HLA, and immunological antagonism (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: Host-parasite coevolution has been likened to a molecular arms race, with particular parasite genes evolving to evade specific host defenses. Study of the variants of an antigenic epitope of Plasmodium falciparum that induces a cytotoxic T cell response supports this view. In African children with malaria, the variants present are influenced by the presence of a human leukocyte antigen (HLA) type that restricts the immune response to this epitope. The distribution of parasite variants may be further influenced by the ability of cohabiting parasite strains to facilitate each other's survival by down-regulating cellular immune responses, using altered peptide ligand antagonism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gilbert, S C -- Plebanski, M -- Gupta, S -- Morris, J -- Cox, M -- Aidoo, M -- Kwiatkowski, D -- Greenwood, B M -- Whittle, H C -- Hill, A V -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1998 Feb 20;279(5354):1173-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Windmill Road, Oxford OX3 7BN, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9469800" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Antigens, Protozoan/genetics/*immunology ; Biological Evolution ; Child ; Epitopes ; Evolution, Molecular ; Gambia ; Genes, Protozoan ; Genetic Variation ; HLA-B35 Antigen/*immunology ; Humans ; Ligands ; Malaria, Falciparum/*immunology/parasitology ; Models, Biological ; Plasmodium falciparum/genetics/*immunology ; Protozoan Proteins/genetics/*immunology ; T-Lymphocytes, Cytotoxic/*immunology
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    Stabilization of interleukin-2 mRNA by the c-Jun NH2-terminal kinase pathway (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-25
    Description: Signaling pathways that stabilize interleukin-2 (IL-2) messenger RNA (mRNA) in activated T cells were examined. IL-2 mRNA contains at least two cis elements that mediated its stabilization in response to different signals, including activation of c-Jun amino-terminal kinase (JNK). This response was mediated through a cis element encompassing the 5' untranslated region (UTR) and the beginning of the coding region. IL-2 transcripts lacking this 5' element no longer responded to JNK activation but were still responsive to other signals generated during T cell activation, which were probably sensed through the 3' UTR. Thus, multiple elements within IL-2 mRNA modulate its stability in a combinatorial manner, and the JNK pathway controls turnover as well as synthesis of IL-2 mRNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, C Y -- Del Gatto-Konczak, F -- Wu, Z -- Karin, M -- New York, N.Y. -- Science. 1998 Jun 19;280(5371):1945-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9632395" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, CD28/immunology ; Antigens, CD3/immunology ; Calcimycin/pharmacology ; Calcium-Calmodulin-Dependent Protein Kinases/antagonists & inhibitors/*metabolism ; Cyclosporine/pharmacology ; Enzyme Activation ; Enzyme Inhibitors/pharmacology ; *Gene Expression Regulation ; Humans ; Imidazoles/pharmacology ; Interleukin-2/*genetics ; JNK Mitogen-Activated Protein Kinases ; Jurkat Cells ; Lymphocyte Activation ; MAP Kinase Kinase 1 ; MAP Kinase Kinase 7 ; *Mitogen-Activated Protein Kinase Kinases ; *Mitogen-Activated Protein Kinases ; Protein Kinases/metabolism ; Protein-Serine-Threonine Kinases/metabolism ; Protein-Tyrosine Kinases/metabolism ; Pyridines/pharmacology ; RNA, Messenger/chemistry/genetics/*metabolism ; Signal Transduction ; T-Lymphocytes/immunology/*metabolism ; Tetradecanoylphorbol Acetate/pharmacology ; Transgenes ; p38 Mitogen-Activated Protein Kinases
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    Classical conditioning and brain systems: the role of awareness (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-04-29
    Description: Classical conditioning of the eye-blink response, perhaps the best studied example of associative learning in vertebrates, is relatively automatic and reflexive, and with the standard procedure (simple delay conditioning), it is intact in animals with hippocampal lesions. In delay conditioning, a tone [the conditioned stimulus (CS)] is presented just before an air puff to the eye [the unconditioned stimulus (US)]. The US is then presented, and the two stimuli coterminate. In trace conditioning, a variant of the standard paradigm, a short interval (500 to 1000 ms) is interposed between the offset of the CS and the onset of the US. Animals with hippocampal lesions fail to acquire trace conditioning. Amnesic patients with damage to the hippocampal formation and normal volunteers were tested on two versions of delay conditioning and two versions of trace conditioning and then assessed for the extent to which they became aware of the temporal relationship between the CS and the US. Amnesic patients acquired delay conditioning at a normal rate but failed to acquire trace conditioning. For normal volunteers, awareness was unrelated to successful delay conditioning but was a prerequisite for successful trace conditioning. Trace conditioning is hippocampus dependent because, as in other tasks of declarative memory, conscious knowledge must be acquired across the training session. Trace conditioning may provide a means for studying awareness in nonhuman animals, in the context of current ideas about multiple memory systems and the function of the hippocampus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clark, R E -- Squire, L R -- 24600/PHS HHS/ -- New York, N.Y. -- Science. 1998 Apr 3;280(5360):77-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry, University of California, San Diego, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9525860" target="_blank"〉PubMed〈/a〉
    Keywords: Aged ; Amnesia/*physiopathology/psychology ; Awareness/*physiology ; Blinking ; Cerebellum/physiology/physiopathology ; Conditioning, Classical/*physiology ; Female ; Hippocampus/*physiology/physiopathology ; Humans ; Learning/physiology ; Male ; Memory/*physiology ; Middle Aged ; Neocortex/physiology/physiopathology
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    The ethics of AIDS vaccine trials (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zion, D -- New York, N.Y. -- Science. 1998 May 29;280(5368):1329-30; author reply 1330-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9634405" target="_blank"〉PubMed〈/a〉
    Keywords: *AIDS Vaccines ; Acquired Immunodeficiency Syndrome/prevention & control ; Clinical Trials as Topic/*standards ; Controlled Clinical Trials as Topic/*standards ; Developed Countries ; Developing Countries ; *Ethics, Medical ; Humans ; Informed Consent
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    Genetic dissection of a mammalian replicator in the human beta-globin locus (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-08-14
    Description: The timing and localization of DNA replication initiation in mammalian cells are heritable traits, but it is not known whether initiation requires specific DNA sequences. A site-specific recombination strategy was used to show that DNA sequences previously identified as replication initiation sites could initiate replication when transferred to new chromosomal locations. An 8-kilobase DNA sequence encompassing the origin of DNA replication in the human beta-globin locus initiated replication in the simian genome. Specific deletions within the globin origin did not initiate replication in these chromosomal sites. These data suggest that initiation of DNA replication in mammalian cells requires specific sequence information and extend the replicon hypothesis to higher eukaryotes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aladjem, M I -- Rodewald, L W -- Kolman, J L -- Wahl, G M -- CA48405/CA/NCI NIH HHS/ -- GM51104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Aug 14;281(5379):1005-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Gene Expression Laboratory, The Salk Institute, San Diego, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9703500" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cercopithecus aethiops ; DNA/genetics ; DNA Nucleotidyltransferases/metabolism ; *DNA Replication ; Gene Targeting ; Globins/*genetics ; Humans ; Integrases/metabolism ; Polymerase Chain Reaction ; *Replication Origin ; S Phase ; Sequence Deletion ; *Viral Proteins
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    AIDS office head picked (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1998 May 22;280(5367):1181.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9634393" target="_blank"〉PubMed〈/a〉
    Keywords: *Acquired Immunodeficiency Syndrome/history ; History, 20th Century ; National Institutes of Health (U.S.)/history/*organization & administration ; Research/history/*organization & administration ; United States
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    Regulation of the proinflammatory effects of Fas ligand (CD95L) (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-11-30
    Description: Fas ligand (CD95L) inhibits T cell function in immune-privileged organs such as the eye and testis, yet in most tissues CD95L expression induces potent inflammatory responses. With a stably transfected colon carcinoma cell line, CT26-CD95L, the molecular basis for these divergent responses was defined. When injected subcutaneously, rejection of CT26-CD95L was caused by neutrophils activated by CD95L. CT26-CD95L survived in the intraocular space because of the presence of transforming growth factor-beta (TGF-beta), which inhibited neutrophil activation. Providing TGF-beta to subcutaneous sites protected against tumor rejection. Thus, these cytokines together generate a microenvironment that promotes immunologic tolerance, which may aid in the amelioration of allograft rejection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, J J -- Sun, Y -- Nabel, G J -- New York, N.Y. -- Science. 1998 Nov 27;282(5394):1714-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Michigan Medical Center, Departments of Internal Medicine and Biological Chemistry, 1150 West Medical Center Drive, 4520 Medical Science Research Building I, Ann Arbor, MI 48109-0650, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9831564" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anterior Chamber ; Apoptosis ; Calcium-Calmodulin-Dependent Protein Kinases/antagonists & inhibitors/metabolism ; Cytotoxicity, Immunologic ; Fas Ligand Protein ; Female ; Graft Rejection ; Humans ; Immune Tolerance ; Inflammation/*immunology ; Jurkat Cells ; Membrane Glycoproteins/*physiology ; Mice ; Mice, Inbred BALB C ; *Mitogen-Activated Protein Kinases ; Neoplasm Transplantation ; Neoplasms, Experimental/*immunology/pathology ; *Neutrophil Activation ; Neutrophils/immunology ; Transfection ; Transforming Growth Factor beta/pharmacology ; Tumor Cells, Cultured ; p38 Mitogen-Activated Protein Kinases
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    Ames tackles the riddle of life (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-04-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lawler, A -- New York, N.Y. -- Science. 1998 Mar 20;279(5358):1840-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9537898" target="_blank"〉PubMed〈/a〉
    Keywords: Budgets ; *Exobiology/economics/organization & administration ; *Origin of Life ; Research Support as Topic ; United States ; *United States National Aeronautics and Space ; Administration/economics/organization & administration
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    BSE and prions: uncertainties about the agent (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-01-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chesebro, B -- New York, N.Y. -- Science. 1998 Jan 2;279(5347):42-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Persistent Virus Diseases, Rocky Mountain Laboratories, Hamilton, MT 59840, USA. bchesebro@nih.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9441410" target="_blank"〉PubMed〈/a〉
    Keywords: Amyloid/chemistry ; Amyloidosis/metabolism ; Animals ; Cattle ; Creutzfeldt-Jakob Syndrome/epidemiology/*etiology/transmission ; Disease Susceptibility ; Encephalopathy, Bovine Spongiform/epidemiology/*etiology/transmission ; Gene Expression ; Great Britain/epidemiology ; Humans ; Mice ; Mice, Transgenic ; Mutation ; Prion Diseases/*etiology/transmission ; Prions/chemistry/genetics/metabolism/*pathogenicity ; Virus Physiological Phenomena ; Viruses/pathogenicity
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    Science catches Clinton's eye (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lawler, A -- New York, N.Y. -- Science. 1998 Feb 6;279(5352):794-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9480546" target="_blank"〉PubMed〈/a〉
    Keywords: *Budgets ; Financing, Government ; Government Agencies/*economics ; National Institutes of Health (U.S.)/*economics ; *Research Support as Topic ; Tobacco Industry ; United States
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    Direct phosphorylation of IkappaB by IKKalpha and IKKbeta: discrimination between free and NF-kappaB-bound substrate (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-08-28
    Description: A large protein complex mediates the phosphorylation of the inhibitor of kappaB (IkappaB), which results in the activation of nuclear factor kappaB (NF-kappaB). Two subunits of this complex, IkappaB kinase alpha (IKKalpha) and IkappaB kinase beta (IKKbeta), are required for NF-kappaB activation. Purified recombinant IKKalpha and IKKbeta expressed in insect cells were used to demonstrate that each protein can directly phosphorylate IkappaB proteins. IKKalpha and IKKbeta were found to form both homodimers and heterodimers. Both IKKalpha and IKKbeta phosphorylated IkappaB bound to NF-kappaB more efficiently than they phosphorylated free IkappaB. This result explains how free IkappaB can accumulate in cells in which IKK is still active and thus can contribute to the termination of NF-kappaB activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zandi, E -- Chen, Y -- Karin, M -- AI 43477/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1998 Aug 28;281(5381):1360-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology, University of California at San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9721103" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Dimerization ; Enzyme Activation ; HeLa Cells ; Helix-Loop-Helix Motifs ; Humans ; I-kappa B Kinase ; Leucine Zippers ; Mutation ; NF-kappa B/antagonists & inhibitors/*metabolism ; Phosphorylation ; Protein-Serine-Threonine Kinases/chemistry/genetics/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Recombinant Fusion Proteins/metabolism ; Recombinant Proteins/metabolism ; Spodoptera ; Transcription Factor RelB ; *Transcription Factors
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    Inducible repair of thymine glycol detected by an ultrasensitive assay for DNA damage (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-06
    Description: An ultrasensitive assay for measuring DNA base damage is described that couples immunochemical recognition with capillary electrophoresis and laser-induced fluorescence detection. The method provides a detection limit of 3 x 10(-21) moles, an improvement of four to five orders of magnitude over current methods. Induction and repair of thymine glycols were studied in irradiated A549 cells (a human lung carcinoma cell line). Exposure of these cells to a low dose of radiation (0.25 Gray) 4 hours before a clinically relevant dose (2 Gray) enhanced removal of thymine glycols after the higher dose. These data provide evidence for an inducible repair response for radiation-induced damage to DNA bases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Le, X C -- Xing, J Z -- Lee, J -- Leadon, S A -- Weinfeld, M -- CA40453/CA/NCI NIH HHS/ -- CA62059/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 May 15;280(5366):1066-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Public Health Sciences, Faculty of Medicine and Oral Health Sciences, University of Alberta, Edmonton, Alberta, T6G 2G3, Canada. xc.le@ualberta.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9582118" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Monoclonal ; Bromodeoxyuridine/immunology ; *DNA Damage ; *DNA Repair ; DNA, Neoplasm/metabolism/radiation effects ; Dose-Response Relationship, Radiation ; Electrophoresis, Capillary ; Humans ; Radiation, Ionizing ; Thymine/*analogs & derivatives/analysis/immunology/metabolism ; Tumor Cells, Cultured
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    Biological hydrogen production: not so elementary (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Adams, M W -- Stiefel, E I -- New York, N.Y. -- Science. 1998 Dec 4;282(5395):1842-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, University of Georgia, Athens, GA 30602, USA. adams@bmb.uga.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9874636" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Carbon Monoxide/chemistry ; Clostridium/*enzymology ; Crystallography, X-Ray ; Cyanides/chemistry ; Humans ; Hydrogen/*metabolism ; Hydrogenase/*chemistry/*metabolism ; Iron/chemistry ; Ligands ; Oxidation-Reduction ; Pyruvic Acid/metabolism
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    The Bcl-2 protein family: arbiters of cell survival (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-09-12
    Description: Bcl-2 and related cytoplasmic proteins are key regulators of apoptosis, the cell suicide program critical for development, tissue homeostasis, and protection against pathogens. Those most similar to Bcl-2 promote cell survival by inhibiting adapters needed for activation of the proteases (caspases) that dismantle the cell. More distant relatives instead promote apoptosis, apparently through mechanisms that include displacing the adapters from the pro-survival proteins. Thus, for many but not all apoptotic signals, the balance between these competing activities determines cell fate. Bcl-2 family members are essential for maintenance of major organ systems, and mutations affecting them are implicated in cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Adams, J M -- Cory, S -- CA43540/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Aug 28;281(5381):1322-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Walter and Eliza Institute of Medical Research, Post Office Royal Melbourne Hospital, Victoria 3050, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9735050" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; Cell Cycle ; *Cell Survival ; Cysteine Endopeptidases/metabolism ; Cytokines/physiology ; Genes, bcl-2 ; Humans ; Neoplasms/etiology/pathology/therapy ; Organelles/physiology ; Proto-Oncogene Proteins c-bcl-2/chemistry/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Cell death in us and others (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-09-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Golstein, P -- New York, N.Y. -- Science. 1998 Aug 28;281(5381):1283.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9735040" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; *Cell Death ; Cysteine Endopeptidases/metabolism ; Fungi/cytology ; Humans ; Plant Cells
    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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    Tobacco: who pays whom? (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gori, G B -- New York, N.Y. -- Science. 1998 Sep 18;281(5384):1805-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9776683" target="_blank"〉PubMed〈/a〉
    Keywords: *Conflict of Interest ; Humans ; Lung Neoplasms/etiology ; *Tobacco Industry ; Tobacco Smoke Pollution/*adverse effects ; United States ; *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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    Early education of the deaf (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Adler, H J -- Liebman, J -- Raphael, R M -- Ratnanather, J T -- Steyger, P S -- New York, N.Y. -- Science. 1998 Mar 13;279(5357):1617.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9518371" target="_blank"〉PubMed〈/a〉
    Keywords: Child ; *Correction of Hearing Impairment ; Deafness/*genetics/*rehabilitation/therapy ; *Education of Hearing Disabled ; *Education, Special ; Humans ; Lipreading ; Persons With Hearing Impairments/rehabilitation ; Sign Language ; Speech Therapy
    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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    Worming secrets from the C. elegans genome (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Dec 11;282(5396):1972-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9874643" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caenorhabditis elegans/cytology/*genetics/physiology ; Cell Lineage ; Chromosome Mapping ; DNA, Helminth/chemistry/genetics ; Evolution, Molecular ; Gene Expression Regulation ; *Genes, Helminth ; Genetic Techniques ; *Genome ; Humans ; Mutation ; *Sequence Analysis, DNA
    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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    Elimination of syphilis in the United States (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-08-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉St Louis, M E -- Wasserheit, J N -- New York, N.Y. -- Science. 1998 Jul 17;281(5375):353-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Center for HIV, STD, and TB Prevention, Centers for Disease Control and Prevention, Mailstop E-02, Atlanta, GA 30333, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9705711" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS-Related Opportunistic Infections/prevention & control ; Adult ; African Americans ; Disease Outbreaks ; Female ; Genome, Bacterial ; HIV Infections/transmission ; Humans ; Infant, Newborn ; Male ; Public Health Practice ; Socioeconomic Factors ; Syphilis/complications/epidemiology/*prevention & control ; Syphilis, Congenital/epidemiology ; Treponema pallidum/genetics ; United States/epidemiology
    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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    Taiwan trolls for U.S. firms to help it create an industry (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Agnew, B -- New York, N.Y. -- Science. 1998 May 22;280(5367):1190.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9634398" target="_blank"〉PubMed〈/a〉
    Keywords: Biotechnology/*economics ; *Commerce ; International Cooperation ; *Investments ; Taiwan ; 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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    Cocaine exposure and children: the meaning of subtle effects (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lester, B M -- LaGasse, L L -- Seifer, R -- U10 DA024119/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1998 Oct 23;282(5389):633-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Brown University School of Medicine, Providence, RI 02905-2499, USA. barryvlester@brown.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9841414" target="_blank"〉PubMed〈/a〉
    Keywords: Child ; Child Language ; Cocaine/*adverse effects ; Cocaine-Related Disorders/therapy ; Cognition Disorders/*chemically induced/prevention & control ; Costs and Cost Analysis ; Education, Special/economics ; Female ; Humans ; Intelligence/*drug effects ; Language Disorders/*chemically induced/prevention & control ; Meta-Analysis as Topic ; Pregnancy ; Pregnancy Complications/therapy ; *Prenatal Exposure Delayed Effects
    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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    FDA scientists resist cuts in in-house research positions (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Agnew, B -- New York, N.Y. -- Science. 1998 Feb 13;279(5353):976-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9490483" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Products ; Biotechnology ; Drug Approval ; Drug Industry ; *Research ; *Research Personnel ; Research Support as Topic ; United States ; United States Food and Drug Administration/*organization & administration
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    AIDS vaccine development (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Agosto, M -- Allan, J -- Benson, C -- Berger, E A -- Blumenthal, R -- Burton, D -- Clements, J -- Coffin, J -- Connor, R -- Cullen, B -- Desrosiers, R -- Dimitrov, D -- Doms, R -- Emerman, M -- Feinberg, M -- Fultz, P -- Gerard, C -- Gonsalves, G -- Haase, A -- Haigwood, N -- Hirsch, V -- Ho, D -- Hoxie, J A -- Hu, S L -- Zingale, D -- New York, N.Y. -- Science. 1998 May 8;280(5365):803, 804-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9599148" target="_blank"〉PubMed〈/a〉
    Keywords: *AIDS Vaccines/immunology ; Acquired Immunodeficiency Syndrome/prevention & control ; *Clinical Trials as Topic ; HIV Envelope Protein gp120/immunology ; HIV-1/immunology ; Humans ; National Institutes of Health (U.S.) ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    AIDS vaccine development (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levy, J P -- New York, N.Y. -- Science. 1998 May 8;280(5365):806-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9599149" target="_blank"〉PubMed〈/a〉
    Keywords: *AIDS Vaccines/immunology ; Acquired Immunodeficiency Syndrome/immunology/prevention & control ; Animals ; *Clinical Trials as Topic ; HIV/immunology ; HIV Antibodies/biosynthesis/immunology ; Humans ; Immunity, Cellular ; Immunity, Mucosal ; Neutralization Tests
    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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    More deafness genes (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-06-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steel, K P -- Brown, S D -- New York, N.Y. -- Science. 1998 May 29;280(5368):1403.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council, Institute of Hearing Research, University Park, Nottingham NG7 2RD, UK. karen@ihr.mrc.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9634418" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/physiology ; Animals ; Cilia/physiology ; Deafness/*genetics ; Dyneins ; Extracellular Matrix Proteins/*genetics/physiology ; GPI-Linked Proteins ; Hair Cells, Auditory/physiology/ultrastructure ; Hearing ; Humans ; Membrane Glycoproteins/*genetics/physiology ; Mice ; Mice, Mutant Strains ; Mutation ; Myosin Heavy Chains/genetics/physiology ; Myosins/*genetics/physiology ; Tectorial Membrane/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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    A bonanza for plant genomics (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-12-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Oct 23;282(5389):652-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9841420" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/genetics ; Budgets ; Crops, Agricultural/*genetics ; DNA Transposable Elements ; Financing, Government ; Gene Expression Regulation, Plant ; *Genome, Plant ; International Cooperation ; Mutagenesis, Insertional ; Oryza/genetics ; *Physical Chromosome Mapping/economics ; *Research Support as Topic ; *Sequence Analysis, DNA/economics ; United States ; Zea mays/*genetics
    Print ISSN: 0036-8075
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    Genome sequence of an obligate intracellular pathogen of humans: Chlamydia trachomatis (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-23
    Description: Analysis of the 1,042,519-base pair Chlamydia trachomatis genome revealed unexpected features related to the complex biology of chlamydiae. Although chlamydiae lack many biosynthetic capabilities, they retain functions for performing key steps and interconversions of metabolites obtained from their mammalian host cells. Numerous potential virulence-associated proteins also were characterized. Several eukaryotic chromatin-associated domain proteins were identified, suggesting a eukaryotic-like mechanism for chlamydial nucleoid condensation and decondensation. The phylogenetic mosaic of chlamydial genes, including a large number of genes with phylogenetic origins from eukaryotes, implies a complex evolution for adaptation to obligate intracellular parasitism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stephens, R S -- Kalman, S -- Lammel, C -- Fan, J -- Marathe, R -- Aravind, L -- Mitchell, W -- Olinger, L -- Tatusov, R L -- Zhao, Q -- Koonin, E V -- Davis, R W -- AI 39258/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1998 Oct 23;282(5389):754-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Infectious Diseases, University of California, Berkeley, CA 94720, USA. ctgenome@socrates.berkeley.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9784136" target="_blank"〉PubMed〈/a〉
    Keywords: Aerobiosis ; Amino Acid Sequence ; Amino Acids/biosynthesis ; Bacterial Outer Membrane Proteins/genetics ; Bacterial Proteins/chemistry/genetics ; Biological Evolution ; Chlamydia trachomatis/classification/*genetics/metabolism/physiology ; DNA Repair ; Energy Metabolism ; Enzymes/chemistry/genetics ; *Genome, Bacterial ; Humans ; Lipids/biosynthesis ; Molecular Sequence Data ; Peptidoglycan/biosynthesis/genetics ; Phylogeny ; Protein Biosynthesis ; Recombination, Genetic ; *Sequence Analysis, DNA ; Transcription, Genetic ; Transformation, Bacterial ; Virulence
    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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    Human Genome Project: data quality (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Green, P -- New York, N.Y. -- Science. 1998 Feb 20;279(5354):1115-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9508680" target="_blank"〉PubMed〈/a〉
    Keywords: Computer Simulation ; *Human Genome Project ; Humans ; Quality Control ; Reference Standards ; Sequence Analysis, DNA/*standards
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    How a growth control path takes a wrong turn to cancer (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-09-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Sep 4;281(5382):1438-9, 1441.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9750112" target="_blank"〉PubMed〈/a〉
    Keywords: Adenomatous Polyposis Coli Protein ; Animals ; Cadherins/metabolism ; Cell Nucleus/metabolism ; Colorectal Neoplasms/etiology/genetics ; Cytoskeletal Proteins/metabolism ; *Gene Expression Regulation, Neoplastic ; *Genes, APC ; *Genes, myc ; Humans ; Neoplasms/*etiology/genetics ; Proto-Oncogene Proteins/*genetics/physiology ; Proto-Oncogene Proteins c-myc/metabolism ; Signal Transduction ; *Trans-Activators ; Transcription Factors/metabolism ; Wnt Proteins ; *Zebrafish Proteins ; beta Catenin
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    How the genome readies itself for evolution (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-09-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Aug 21;281(5380):1131,1133-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9735027" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA Repair ; DNA Transposable Elements ; *Evolution, Molecular ; Exons ; Gene Rearrangement ; *Genome ; Humans ; Micronuclei, Chromosome-Defective/genetics ; Multigene Family ; Mutation ; Plants/genetics ; Repetitive Sequences, Nucleic Acid
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Kaposi's sarcoma and protection from HIV dementia (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liestael, K -- Goplen, A K -- Dunlop, O -- Bruun, J N -- Maehlen, J -- New York, N.Y. -- Science. 1998 Apr 17;280(5362):361-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9575077" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Dementia Complex/*prevention & control ; AIDS-Related Opportunistic Infections/*immunology/virology ; Chemokines/*metabolism ; Confounding Factors (Epidemiology) ; HIV-1/*metabolism ; Herpesvirus 8, Human/immunology/metabolism ; Humans ; Microglia/metabolism/*virology ; Receptors, CCR3 ; Receptors, Chemokine/metabolism ; Receptors, HIV/metabolism ; Regression Analysis ; Sarcoma, Kaposi/*immunology/virology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Specific covalent labeling of recombinant protein molecules inside live cells (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-07-10
    Description: Recombinant proteins containing four cysteines at the i, i + 1, i + 4, and i + 5 positions of an alpha helix were fluorescently labeled in living cells by extracellular administration of 4',5'-bis(1,3, 2-dithioarsolan-2-yl)fluorescein. This designed small ligand is membrane-permeant and nonfluorescent until it binds with high affinity and specificity to the tetracysteine domain. Such in situ labeling adds much less mass than does green fluorescent protein and offers greater versatility in attachment sites as well as potential spectroscopic and chemical properties. This system provides a recipe for slightly modifying a target protein so that it can be singled out from the many other proteins inside live cells and fluorescently stained by small nonfluorescent dye molecules added from outside the cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Griffin, B A -- Adams, S R -- Tsien, R Y -- NS27177/NS/NINDS NIH HHS/ -- T32 CA09523/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Jul 10;281(5374):269-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA 92093-0647, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9657724" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Calmodulin/chemistry/genetics/metabolism ; Cell Membrane Permeability ; Cell Survival ; Cysteine/*chemistry ; Energy Transfer ; Ethylene Glycol ; Fluoresceins/chemical synthesis/chemistry/*metabolism ; Fluorescence ; *Fluorescent Dyes ; Green Fluorescent Proteins ; HeLa Cells ; Humans ; Jurkat Cells ; Ligands ; Luminescent Proteins/chemistry/genetics/metabolism ; Molecular Sequence Data ; Organometallic Compounds/chemical synthesis/chemistry/*metabolism ; Peptides/chemistry/*metabolism ; Protein Structure, Secondary ; Recombinant Proteins/chemistry/*metabolism ; Spectrometry, Fluorescence ; Transfection
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Quantitation of transcription and clonal selection of single living cells with beta-lactamase as reporter (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-01-24
    Description: Gene expression was visualized in single living mammalian cells with beta-lactamase as a reporter that hydrolyzes a substrate loaded intracellularly as a membrane-permeant ester. Each enzyme molecule changed the fluorescence of many substrate molecules from green to blue by disrupting resonance energy transfer. This wavelength shift was detectable by eye or color film in individual cells containing less than 100 beta-lactamase molecules. The robust change in emission ratio reveals quantitative heterogeneity in real-time gene expression, enables clonal selection by flow cytometry, and forms a basis for high-throughput screening of pharmaceutical candidate drugs in living mammalian cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zlokarnik, G -- Negulescu, P A -- Knapp, T E -- Mere, L -- Burres, N -- Feng, L -- Whitney, M -- Roemer, K -- Tsien, R Y -- NS27177/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1998 Jan 2;279(5347):84-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Aurora Biosciences, 11010 Torreyana Road, San Diego, CA 92121, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9417030" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cell Separation/methods ; Clone Cells/*metabolism ; DNA-Binding Proteins/genetics/metabolism ; Drug Evaluation, Preclinical ; Energy Transfer ; Flow Cytometry ; Fluoresceins/metabolism ; Fluorescent Dyes/metabolism ; *Gene Expression ; *Genes, Reporter ; Half-Life ; Humans ; *Lactams ; Muscarinic Agonists/pharmacology ; Muscarinic Antagonists/pharmacology ; NFATC Transcription Factors ; *Nuclear Proteins ; Sensitivity and Specificity ; Spectrometry, Fluorescence ; Transcription Factors/genetics/metabolism ; *Transcription, Genetic ; Transfection ; Tumor Cells, Cultured ; Umbelliferones/metabolism ; beta-Lactamases/*genetics/metabolism ; beta-Lactams/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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    Mercury in fish (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clarkson, T -- Cox, C -- Davidson, P W -- Myers, G J -- New York, N.Y. -- Science. 1998 Jan 23;279(5350):459, 461.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9454336" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Child ; *Fishes ; *Food Contamination ; Humans ; Iraq ; Maximum Allowable Concentration ; Methylmercury Compounds/administration & dosage/*adverse effects/analysis ; *Nutrition Policy ; Seychelles ; United States ; United States Environmental Protection Agency ; World Health Organization
    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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  • 87
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    A model for the mechanism of human topoisomerase I (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: The three-dimensional structure of a 70-kilodalton amino terminally truncated form of human topoisomerase I in complex with a 22-base pair duplex oligonucleotide, determined to a resolution of 2.8 angstroms, reveals all of the structural elements of the enzyme that contact DNA. The linker region that connects the central core of the enzyme to the carboxyl-terminal domain assumes a coiled-coil configuration and protrudes away from the remainder of the enzyme. The positively charged DNA-proximal surface of the linker makes only a few contacts with the DNA downstream of the cleavage site. In combination with the crystal structures of the reconstituted human topoisomerase I before and after DNA cleavage, this information suggests which amino acid residues are involved in catalyzing phosphodiester bond breakage and religation. The structures also lead to the proposal that the topoisomerization step occurs by a mechanism termed "controlled rotation."〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stewart, L -- Redinbo, M R -- Qiu, X -- Hol, W G -- Champoux, J J -- CA65656/CA/NCI NIH HHS/ -- GM16713/GM/NIGMS NIH HHS/ -- GM49156/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Mar 6;279(5356):1534-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biomolecular Structure Center and Department of Biological Structure, School of Medicine, University of Washington, Seattle, WA 98195-7742, USA. emerald_biostructures@rocketmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9488652" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arginine/chemistry/metabolism ; Binding Sites ; Catalysis ; Crystallography, X-Ray ; DNA/chemistry/*metabolism ; DNA Topoisomerases, Type I/*chemistry/*metabolism ; Humans ; Hydrogen Bonding ; *Models, Chemical ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Oligodeoxyribonucleotides/chemistry/metabolism ; *Protein Conformation ; Protein Structure, Secondary ; Tyrosine/chemistry/metabolism
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  • 88
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    Genome reveals wiles and weak points of syphilis (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-08-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Jul 17;281(5375):324-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9705704" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacterial Proteins/genetics/immunology ; Bacterial Vaccines ; *Genome, Bacterial ; Humans ; Repetitive Sequences, Nucleic Acid ; *Sequence Analysis, DNA ; Syphilis/epidemiology/immunology/*microbiology ; Treponema pallidum/*genetics/immunology/pathogenicity/physiology ; Virulence/genetics ; Yaws/microbiology
    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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  • 89
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    Bailout for drug research institute (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, R -- New York, N.Y. -- Science. 1998 Apr 17;280(5362):372.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9575079" target="_blank"〉PubMed〈/a〉
    Keywords: *Academies and Institutes/economics/organization & administration ; *Drug Industry/economics ; Hungary ; *Pharmaceutical Preparations ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 90
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    Reovirus therapy of tumors with activated Ras pathway (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-11-13
    Description: Human reovirus requires an activated Ras signaling pathway for infection of cultured cells. To investigate whether this property can be exploited for cancer therapy, severe combined immune deficient mice bearing tumors established from v-erbB-transformed murine NIH 3T3 cells or human U87 glioblastoma cells were treated with the virus. A single intratumoral injection of virus resulted in regression of tumors in 65 to 80 percent of the mice. Treatment of immune-competent C3H mice bearing tumors established from ras-transformed C3H-10T1/2 cells also resulted in tumor regression, although a series of injections were required. These results suggest that, with further work, reovirus may have applicability in the treatment of cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Coffey, M C -- Strong, J E -- Forsyth, P A -- Lee, P W -- New York, N.Y. -- Science. 1998 Nov 13;282(5392):1332-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Biology Research Group and Department of Microbiology and Infectious Diseases, University of Calgary Health Science Centre, Calgary, Alberta, T2N 4N1, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9812900" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; Antibodies, Viral/immunology ; Calcium-Calmodulin-Dependent Protein Kinases/metabolism ; Cell Line, Transformed ; Genes, erbB ; *Genes, ras ; Humans ; Male ; Mammalian orthoreovirus 3/immunology/*physiology ; Mice ; Mice, Inbred C3H ; Mice, SCID ; Neoplasm Transplantation ; Neoplasms, Experimental/metabolism/pathology/*therapy/virology ; Signal Transduction ; Tumor Cells, Cultured ; Virus Replication ; ras Proteins/*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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  • 91
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    Medical ethics. No consensus on rules for AIDS vaccine trials (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-07-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, J -- New York, N.Y. -- Science. 1998 Jul 3;281(5373):22-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9679011" target="_blank"〉PubMed〈/a〉
    Keywords: *AIDS Vaccines ; Acquired Immunodeficiency Syndrome/drug therapy/*prevention & control/therapy ; Advisory Committees ; Anti-HIV Agents/*therapeutic use ; *Bioethics ; Controlled Clinical Trials as Topic/*standards ; Developed Countries ; Developing Countries ; Ethical Review ; Ethics ; Ethics, Research ; HIV Infections/drug therapy/prevention & control/therapy ; Humans ; Informed Consent ; Internationality ; Placebos ; Research Subjects ; Withholding Treatment
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  • 92
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    Lawsuit targets Yellowstone bug deal (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Mar 13;279(5357):1624.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9518372" target="_blank"〉PubMed〈/a〉
    Keywords: Biotechnology/*legislation & jurisprudence ; Conservation of Natural Resources/*legislation & jurisprudence ; Northwestern United States ; Public Policy ; Technology Transfer ; United States ; United States Environmental Protection Agency
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 93
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    Bone marrow cells may provide muscle power (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Mar 6;279(5356):1456.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9508720" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow Cells/cytology/*physiology ; Bone Marrow Transplantation ; Cell Differentiation ; Humans ; Mice ; Mice, Transgenic ; Muscle, Skeletal/cytology/pathology/*physiology ; Muscular Dystrophies/pathology/*therapy ; Muscular Dystrophy, Animal/pathology/therapy ; *Regeneration ; Stem Cells/*physiology ; 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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  • 94
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    Cell division gatekeepers identified (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1998 Jan 23;279(5350):477-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9454345" target="_blank"〉PubMed〈/a〉
    Keywords: Anaphase/physiology ; Animals ; Calcium-Binding Proteins/metabolism ; *Carrier Proteins ; Cdc20 Proteins ; *Cell Cycle Proteins ; Chromosomal Proteins, Non-Histone/metabolism ; Chromosomes/*physiology ; Fungal Proteins/metabolism ; Humans ; Kinetochores/*physiology ; Microtubules/metabolism ; *Mitosis ; Nuclear Proteins ; Protein Kinases/metabolism ; Protein-Serine-Threonine Kinases ; Proteins/metabolism ; Signal Transduction ; Spindle Apparatus/metabolism
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  • 95
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    Cancer treatment by targeted drug delivery to tumor vasculature in a mouse model (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-07
    Description: In vivo selection of phage display libraries was used to isolate peptides that home specifically to tumor blood vessels. When coupled to the anticancer drug doxorubicin, two of these peptides-one containing an alphav integrin-binding Arg-Gly-Asp motif and the other an Asn-Gly-Arg motif-enhanced the efficacy of the drug against human breast cancer xenografts in nude mice and also reduced its toxicity. These results indicate that it may be possible to develop targeted chemotherapy strategies that are based on selective expression of receptors in tumor vasculature.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arap, W -- Pasqualini, R -- Ruoslahti, E -- CA30199/CA/NCI NIH HHS/ -- CA62042/CA/NCI NIH HHS/ -- CA74238-01/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Jan 16;279(5349):377-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Research Center, The Burnham Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9430587" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD/metabolism ; Antineoplastic Agents/*administration & dosage/therapeutic use/toxicity ; Bacteriophages ; Coronary Vessels/drug effects ; Doxorubicin/*administration & dosage/*analogs & ; derivatives/metabolism/therapeutic use/toxicity ; *Drug Carriers ; Heart/drug effects ; Humans ; Integrin alphaV ; Integrins/metabolism ; Liver/blood supply/drug effects ; Mice ; Mice, Nude ; Neoplasm Transplantation ; Neoplasms, Experimental/*blood supply/*drug therapy/pathology ; Oligopeptides/*administration & dosage/metabolism/therapeutic use/toxicity ; Peptide Library ; Random Allocation ; Transplantation, Heterologous ; Tumor Cells, Cultured
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 96
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    Postdoctoral patterns, career advancement, and problems (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-08
    Description: Postdoctoral appointments can have different functions and meanings, depending on the field and whether the postdoc is a man or a woman. The Ph.D.'s-Ten Years Later study confirmed that in biochemistry, the postdoc, not the Ph.D., has become the general proving ground for excellence both in academia and industry. Because they spent a longer time in these "mandatory" postdocs, biochemists had the largest proportion of untenured faculty 10 to 13 years after the Ph. D. In mathematics, where substantially fewer postdoctoral positions are available, Ph.D.'s taking postdocs are more likely to obtain faculty positions, but this is true only for men. University administrators should be accountable for monitoring the total time spent in these positions and should provide administrative assistance for skills training, career growth, and the job search. In addition, creative solutions concerning the dual-career couple phenomenon are necessary.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nerad, M -- Cerny, J -- New York, N.Y. -- Science. 1999 Sep 3;285(5433):1533-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate Division, University of California, Berkeley, 424 Sproul Hall, Berkeley, CA 94720-5900, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10477510" target="_blank"〉PubMed〈/a〉
    Keywords: *Biochemistry/education ; *Career Mobility ; *Education, Graduate ; Employment ; Faculty ; *Fellowships and Scholarships ; Female ; Humans ; Male ; *Mathematics ; Salaries and Fringe Benefits ; Societies, Scientific ; Time Factors ; United States ; Universities
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  • 97
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    Rho GTPases and the actin cytoskeleton (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-07
    Description: The actin cytoskeleton mediates a variety of essential biological functions in all eukaryotic cells. In addition to providing a structural framework around which cell shape and polarity are defined, its dynamic properties provide the driving force for cells to move and to divide. Understanding the biochemical mechanisms that control the organization of actin is thus a major goal of contemporary cell biology, with implications for health and disease. Members of the Rho family of small guanosine triphosphatases have emerged as key regulators of the actin cytoskeleton, and furthermore, through their interaction with multiple target proteins, they ensure coordinated control of other cellular activities such as gene transcription and adhesion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hall, A -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1998 Jan 23;279(5350):509-14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Laboratory for Molecular Cell Biology, Cancer Research Campaign Oncogene and Signal Transduction Group, University College London, Gower Street, London WC1E 6BT, UK. alan.hall@ucl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9438836" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/*metabolism ; Animals ; Cell Adhesion ; Cell Cycle ; Cell Movement ; Cytoskeleton/*metabolism/physiology/*ultrastructure ; Enzyme Activation ; GTP Phosphohydrolases/*metabolism ; GTP-Binding Proteins/*metabolism ; Gene Expression Regulation ; Humans ; Membrane Proteins/*metabolism ; Signal Transduction ; rhoB GTP-Binding Protein
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 98
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    The HUGO Mutation Database Initiative (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-01-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cotton, R G -- McKusick, V -- Scriver, C R -- New York, N.Y. -- Science. 1998 Jan 2;279(5347):10-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9441394" target="_blank"〉PubMed〈/a〉
    Keywords: Computer Communication Networks ; *Databases, Factual ; *Genetics, Medical ; *Human Genome Project ; Humans ; *Mutation ; Terminology as Topic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 99
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    A call for more science in EPA regulations (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Madia, W J -- New York, N.Y. -- Science. 1998 Oct 2;282(5386):45.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9786793" target="_blank"〉PubMed〈/a〉
    Keywords: Chlorine ; *Environmental Pollutants ; Government Agencies ; National Institutes of Health (U.S.) ; *Research ; United States ; United States Environmental Protection Agency/*legislation & jurisprudence ; Water Supply
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 100
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    An area specialized for spatial working memory in human frontal cortex (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-03-21
    Description: Working memory is the process of maintaining an active representation of information so that it is available for use. In monkeys, a prefrontal cortical region important for spatial working memory lies in and around the principal sulcus, but in humans the location, and even the existence, of a region for spatial working memory is in dispute. By using functional magnetic resonance imaging in humans, an area in the superior frontal sulcus was identified that is specialized for spatial working memory. This area is located more superiorly and posteriorly in the human than in the monkey brain, which may explain why it was not recognized previously.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Courtney, S M -- Petit, L -- Maisog, J M -- Ungerleider, L G -- Haxby, J V -- New York, N.Y. -- Science. 1998 Feb 27;279(5355):1347-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Brain and Cognition, National Institute of Mental Health, Building 10, Room 4C104, 10 Center Drive, Bethesda, MD 20892-1366, USA. Susan_Courtney@nih.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9478894" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; *Brain Mapping ; Female ; Frontal Lobe/anatomy & histology/*physiology ; Haplorhini ; Humans ; Magnetic Resonance Imaging ; Male ; *Memory, Short-Term ; Prefrontal Cortex/anatomy & histology/physiology ; Psychomotor Performance ; Saccades ; *Space Perception
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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