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  • 2010-2014
  • 2000-2004  (721)
  • 1925-1929
  • 2004  (721)
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  • 2010-2014
  • 2000-2004  (721)
  • 1925-1929
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  • 1
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    Trafficking of ODV-E66 is mediated via a sorting motif and other viral proteins: Facilitated trafficking to the inner nuclear membrane (2004)
    National Academy of Sciences
    Details
    Publication Date: 2004-05-18
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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    PAPER CURRENT
  • 2
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    ACE-ASIA: Regional Climatic and Atmospheric Chemical Effects of Asian Dust and Pollution (2004)
    American Meteorological Society
    Details
    Publication Date: 2004-03-01
    Print ISSN: 0003-0007
    Electronic ISSN: 1520-0477
    Topics: Geography , Physics
    Published by American Meteorological Society
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    PAPER CURRENT
  • 3
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    Seawater carbonate chemistry, processes and elements during experiments with planktonic foraminifera Orbulina universa, 2004 (2004)
    PANGAEA
    In:  Supplement to: Russell, Ann D; Hönish, Bärbel; Spero, Howard J; Lea, David W (2004): Effects of seawater carbonate ion concentration and temperature on shell U, Mg, and Sr in cultured planktonic foraminifera. Geochimica et Cosmochimica Acta, 68(21), 4347-4361, https://doi.org/10.1016/j.gca.2004.03.013
    Details
    Publication Date: 2024-03-15
    Description: We investigate the sensitivity of U/Ca, Mg/Ca, and Sr/Ca to changes in seawater [CO3[2-]] and temperature in calcite produced by the two planktonic foraminifera species, Orbulina universa and Globigerina bulloides, in laboratory culture experiments. Our results demonstrate that at constant temperature, U/Ca in O. universa decreases by 25 +/- 7% per 100 µmol [CO3[2-]] kg**-1, as seawater [CO3[2-]] increases from 110 to 470 µmol kg**-1. Results from G. bulloides suggest a similar relationship, but U/Ca is consistently offset by ~+40% at the same environmental [CO3[2-]]. In O. universa, U/Ca is insensitive to temperature between 15°C and 25°C. Applying the O. universa relationship to three U/Ca records from a related species, Globigerinoides sacculifer, we estimate that Caribbean and tropical Atlantic [CO3[2-]] was 110 +/- 70 µmol kg**-1 and 80 +/- 40 µmol kg**-1 higher, respectively, during the last glacial period relative to the Holocene. This result is consistent with estimates of the glacial-interglacial change in surface water [CO3[2-]] based on both modeling and on boron isotope pH estimates. In settings where the addition of U by diagenetic processes is not a factor, down-core records of foraminiferal U/Ca have potential to provide information about changes in the ocean's carbonate concentration.
    Keywords: Alkalinity, total; Aragonite saturation state; Bicarbonate ion; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (〈20 L); Calcification/Dissolution; Calcite, dissolved; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chromista; Coulometric titration; EPOCA; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; EXP; Experiment; Foraminifera; Foraminifera, planktic, mass per shell; Foraminifera, planktic, size average; Foraminifera, planktic, wall thickness; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Heterotrophic prokaryotes; Laboratory experiment; Magnesium/Calcium ratio; Measured; Not applicable; OA-ICC; Ocean Acidification International Coordination Centre; Open ocean; Orbulina universa; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; Potentiometric open-cell titration; Radiation, photosynthetically active; Russell_etal_04; Salinity; Sample ID; Single species; Species; Strontium/Calcium ratio; Temperate; Temperature, water; Uranium/Calcium ratio
    Type: Dataset
    Format: text/tab-separated-values, 1631 data points
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    DATA PANGAEA
  • 4
    Electronic Resource
    Electronic Resource
    Spacing and Competition Between Planted Grass Plugs and Preexisting Perennial Grasses in a Restoration Site in Oregon (2004)
    Oxford, UK; Malden, USA : Blackwell Science Inc
    Restoration ecology 12 (2004), S. 0 
    Details
    ISSN: 1526-100X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Planting native species into restoration settings where other natives already occur is a common practice. However, the competitive consequences of such plantings are rarely studied. Planting density also affects restoration costs. Here we examined the effects of established individuals of Lemmon's needlegrass (Achnatherum lemmonii) on plugs of bluebunch wheatgrass (Pseudoroegneria spicata) and Idaho fescue (Festuca idahoensis) in a restoration site in Oregon. All three of these grasses are local native perennials. Plugs were planted at 6, 12, and 18 cm from established A. lemmonii bunchgrasses and also in plots without A. lemmonii neighbors. Plug survival was uniformly high, averaging more than 98%. Plugs planted at 6 cm from established grasses showed significantly lower growth and reproduction than plugs planted at 18 cm, which had similar values to plugs not planted in the vicinity of A. lemmonii. These results suggest that interplanting distances of as little as 18 cm were sufficient to greatly reduce competitive effects on newly planted plugs, at least in early establishment at this site.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1061-2971.2004.00009.x
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    DIVISIONS OF LABOUR, SPECIALIZATION AND THE ENFORCEMENT OF A SYSTEM OF PROPERTY RIGHTS: A GENERAL EQUILIBRIUM ANALYSIS (2004)
    PO Box 378, Carlton South Victoria 3053, Australia : Blackwell Publishing Asia Pty Ltd
    Pacific economic review 9 (2004), S. 0 
    Details
    ISSN: 1468-0106
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Abstract.  This paper uses a model of endogenous theft and endogenous network division of labour to formalize some of the main principles of the economics of the state and to explore related issues concerning why new constitutional rules emerge and evolve. The model suggests that fiscal competition between states facilitates important circular effects, which propel improvements in economic welfare and promote economic growth. In particular, improvements in institutional efficiency expand the demand for transactions, which in turn increases the need for further third-party protection of property rights. We illustrate our results using the growth of the state system in Western Europe.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1468-0106.2004.00251.x
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of pH on the activity of bovicin HC5, a bacteriocin from Streptococcus bovis HC5 (2004)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 231 (2004), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The bacteriocin, bovicin HC5, catalyzed potassium efflux from Streptococcus bovis JB1, and this activity was highly pH dependent. When the pH was near neutral, glucose-energized cells were not affected by bovicin HC5, but the intracellular steady-state concentration of potassium decreased at acidic pH values. The idea that pH was affecting bovicin HC5 binding was supported by the observation that acidic pH also enhanced the efflux of potassium from non-energized cells that had been loaded with potassium. The relationship between bovicin HC5 concentration and potassium depletion was a saturation function, but cooperativity plots indicated that the binding of one bovicin molecule to the cell membrane facilitated the binding of another.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/S0378-1097(03)00922-4
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  • 7
    Electronic Resource
    Electronic Resource
    The steady-state orgA specific mRNA levels in Salmonella enterica serovar Typhimurium are repressed by oxygen during logarithmic growth phase but not early-stationary phase (2004)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 236 (2004), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The orgA gene from Salmonella enterica serovar Typhimurium is involved in promoting cellular invasion of the pathogen. Its exact role in virulence is still unclear mainly due to difficulties in understanding its complex regulation. In this study a novel competitive RT-PCR (cRT-PCR) system was developed to measure the steady-state orgA specific mRNA levels in cells under various growth parameters. Previous studies have been inconsistent regarding oxygen regulation of orgA. Using our system we found that oxygen repressed the copy levels 3.5-fold in cells grown only to logarithmic phase. Oxygen repression was not observed in cells grown to early-stationary phase, a parameter that has previously been demonstrated to be the most invasive stage of growth. The importance of NaCl in orgA gene regulation is also illustrated. Significant increases in copy numbers were observed after growth in high NaCl conditions. Measuring the steady-state mRNA levels using cRT-PCR provides an accurate insight into prokaryotic gene regulation prior to translation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.2004.tb09628.x
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  • 8
    Electronic Resource
    Electronic Resource
    Regulation of UK Corporate Governance: lessons from accounting, audit and financial services (2004)
    Oxford, UK : Blackwell Publishing Ltd.
    Corporate governance 12 (2004), S. 0 
    Details
    ISSN: 1467-8683
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Political Science , Economics
    Notes: This paper explores current debates and trends in regulation and examines their relevance to the evolution of UK corporate governance codes of practice. In particular, the paper explores frameworks drawn from the regulation of financial services, accounting and audit, and discusses whether there are lessons to be learnt from them for the regulation of UK corporate governance. Because of trends in regulation, and in the light of empirical evidence and recent events, especially post-Enron, an appropriate structure for the regulation of UK corporate governance might be based on that of financial services.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8683.2004.00347.x
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  • 9
    Electronic Resource
    Electronic Resource
    Identifying Optimum Locations for Tropical Testing of United States Army Materiel and Systems (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Singapore journal of tropical geography 25 (2004), S. 0 
    Details
    ISSN: 1467-9493
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geography
    Notes: This paper is an example of applied military geography focusing on a particular problem arising from the Panama Canal Treaty of 1977. One of the provisions of the treaty required the United States (US) military to completely withdraw from and relinquish its military and government facilities to the Republic of Panama prior to midnight on 31 December 1999. In so doing, the US army turned over to the Panama government all of its military bases, some of which had been used since World War I to test materiel, equipment and systems within a tropical environment. Given its global mission and responsibilities, the US army has a well-established practice of testing its materiel, equipment and systems throughout the entire range of potential operating environments. The US experience in the Pacific in World War II and in Southeast Asia during the Vietnam War clearly demonstrated the need to test the performance of new equipment under the harsh conditions found in tropical jungles. Furthermore, since 1960, nearly 75 per cent of all international and internal armed conflicts have been in countries that are totally or partially in the tropics. This paper presents the findings of a scientific panel that was organised to propose a new location for testing US army materiel and systems within a tropical environment. Rather than simply choosing a location analogous to Panama, the panel sought to develop a methodology that could be employed for site selection based on any set of environmental criteria. This study is a classical locational analysis and reconfirms the integrative nature of geography and its utility for solving complex problems that cut across disciplinary boundaries.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.0129-7619.2004.00175.x
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  • 10
    Electronic Resource
    Electronic Resource
    A Mixed Model Approach to Identify Yeast Transcriptional Regulatory Motifs via Microarray Experiments (2004)
    Berkeley, Calif. : Berkeley Electronic Press (now: De Gruyter)
    Statistical applications in genetics and molecular biology 3.2004, 1, art22 
    Details
    ISSN: 1544-6115
    Source: Berkeley Electronic Press Academic Journals
    Topics: Biology
    Notes: A genome-wide location analysis method has been introduced as a means to simultaneously study protein-DNA binding interactions for a large number of genes on a microarray platform. Identification of interactions between transcription factors (TF) and genes provide insight into the mechanisms that regulate a variety of cellular responses. Drawing proper inferences from the experimental data is key to finding statistically significant TF-gene binding interactions. We describe how the analysis and interpretation of genome-wide location data can be fit into a traditional statistical modeling framework that considers the data across all arrays and formulizes appropriate hypothesis tests. The approach is illustrated with data from a yeast transcription factor binding experiment that illustrates how identified TF-gene interactions can enhance initial exploration of transcriptional regulatory networks. Examples of five kinds of transcriptional regulatory structure are also demonstrated. Some stark differences with previously published results are explored.
    Type of Medium: Electronic Resource
    URL: http://www.bepress.com/sagmb/vol3/iss1/art22
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