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  • American Association for the Advancement of Science (AAAS)  (13,320)
  • 1990-1994  (13,320)
Collection
Keywords
Publisher
Years
Year
  • 1
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    Sea-Surface Temperature from Coral Skeletal Strontium/Calcium Ratios (1992)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 257 (5070). pp. 644-647.
    Details
    Publication Date: 2019-03-13
    Description: Seasonal records of tropical sea-surface temperature (SST) over the past 10(5) years can be recovered from high-precision measurements of coral strontium/calcium ratios with the use of thermal ionization mass spectrometry. The temperature dependence of these ratios was calibrated with corals collected at SST recording stations and by (18)O/(16)O thermometry. The results suggest that mean monthly SST may be determined with an apparent accuracy of better than 0.5 degrees C. Measurements on a fossil coral indicate that 10,200 years ago mean annual SSTs near Vanuatu in the southwestern Pacific Ocean were about 5 degrees C colder than today and that seasonal variations in SST were larger. These data suggest that tropical climate zones were compressed toward the equator during deglaciation.
    Type: Article , PeerReviewed
    Format: text
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  • 2
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    Cephalopodologie (1990)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 248 . pp. 898-899.
    Details
    Publication Date: 2017-02-15
    Type: Article , PeerReviewed
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  • 3
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    Global Climate Change and Intensification of Coastal Ocean Upwelling (1990)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 247 (4939). pp. 198-201.
    Details
    Publication Date: 2017-01-04
    Description: A mechanism exists whereby global greenhouse warning could, by intensifying the alongshore wind stress on the ocean surface, lead to acceleration of coastal upwelling. Evidence from several different regions suggests that the major coastal upwelling systems of the world have been growing in upwelling intensity as greenhouse gases have accumulated in the earth's atmosphere. Thus the cool foggy summer conditions that typify the coastlands of northern California and other similar upwelling regions might, under global warming, become even more pronounced. Effects of enhanced upwelling on the marine ecosystem are uncertain but potentially dramatic.
    Type: Article , PeerReviewed
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  • 4
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    Causes of Decadal Climate Variability over the North Pacific and North America (1994)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 266 (5185). pp. 634-637.
    Details
    Publication Date: 2016-09-09
    Description: The cause of decadal climate variability over the North Pacific Ocean and North America is investigated by the analysis of data from a multidecadal integration with a state-of-the-art coupled ocean-atmosphere model and observations. About one-third of the low-frequency climate variability in the region of interest can be attributed to a cycle involving unstable air-sea interactions between the subtropical gyre circulation in the North Pacific and the Aleutian low-pressure system. The existence of this cycle provides a basis for long-range climate forecasting over the western United States at decadal time scales.
    Type: Article , PeerReviewed
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  • 5
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    A Two-Tiered Approach to Long-Range Climate Forecasting (1993)
    American Association for the Advancement of Science (AAAS)
    In:  Science, 261 (5124). pp. 1026-1029.
    Details
    Publication Date: 2016-09-09
    Description: Long-range global climate forecasts were made by use of a model for predicting a tropical Pacific sea-surface temperature (SST) in tandem with an atmospheric general circulation model. The SST is predicted first at long lead times into the future. These ocean forecasts are then used to force the atmospheric model and so produce climate forecasts at lead times of the SST forecasts. Prediction of seven large climatic events of the 1970s to 1990s by this technique are in good agreement with observations over many regions of the globe.
    Type: Article , PeerReviewed
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  • 6
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    ATP-dependent nucleosome reconfiguration and transcriptional activation from preassembled chromatin templates (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-23
    Description: GAL4-VP16-mediated nucleosome reconfiguration and transcriptional activation were observed with preassembled chromatin templates that contained regular and physiological nucleosome spacing. Both processes were dependent on adenosine triphosphate (ATP), although binding of GAL4-VP16 to the chromatin was ATP-independent. Factor-mediated nucleosome reconfiguration was not, however, sufficient for transcriptional activation. These experiments recreate in vitro the active participation of nucleosomal cores in the regulation of transcription that occurs in vivo, and they suggest a multistep pathway for transcriptional activation in which factor- and ATP-dependent nucleosome reconfiguration is followed by facilitation by the DNA-bound activator of transcription from the repressed chromatin template.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pazin, M J -- Kamakaka, R T -- Kadonaga, J T -- New York, N.Y. -- Science. 1994 Dec 23;266(5193):2007-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of California, San Diego, La Jolla 92093-0347.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7801129" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/*metabolism ; Animals ; Chromatin/chemistry/*metabolism ; DNA/metabolism ; DNA-Binding Proteins ; Drosophila ; Fungal Proteins/metabolism ; Models, Genetic ; Nucleosomes/chemistry/*metabolism ; *Saccharomyces cerevisiae Proteins ; Templates, Genetic ; Trans-Activators/metabolism ; Transcription Factors/metabolism ; *Transcriptional Activation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 7
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    Polymerase structures and mechanism (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pelletier, H -- New York, N.Y. -- Science. 1994 Dec 23;266(5193):2025-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7801132" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Biological Evolution ; Catalysis ; DNA Polymerase I/*chemistry/metabolism ; Protein Structure, Secondary
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 8
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    Theorists make a bid to eliminate black holes (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Flam, F -- New York, N.Y. -- Science. 1994 Dec 23;266(5193):1945.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17836512" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 9
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    Molecule of the year: the DNA repair enzyme (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koshland, D E Jr -- New York, N.Y. -- Science. 1994 Dec 23;266(5193):1925.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7801114" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA Damage ; *DNA Ligases ; *DNA Repair ; DNA Replication ; Humans ; Mutation ; Species Specificity
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 10
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    A receptor component of the chloroplast protein translocation machinery (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-12-23
    Description: The chloroplast outer envelope protein OEP86 functions as a receptor in precursor protein translocation into chloroplasts. Sequence analysis suggests that the precursor of OEP86 is directed to the chloroplast outer envelope by a cleavable, negatively charged, and unusually long amino-terminal peptide. This presequence is unlike other potential targeting signals and suggests the existence of another membrane insertion pathway. Insertion of precursor OEP86 required the hydrolysis of adenosine triphosphate and the existence of surface exposed chloroplast membrane components, and it was not competed by another precursor protein destined for the internal plastid compartments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hirsch, S -- Muckel, E -- Heemeyer, F -- von Heijne, G -- Soll, J -- New York, N.Y. -- Science. 1994 Dec 23;266(5193):1989-92.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Botanisches Institut, Universitat Kiel, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7801125" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Amino Acid Sequence ; Chloroplast Proteins ; Chloroplasts/*metabolism ; *GTP-Binding Proteins ; Hydrogen-Ion Concentration ; Intracellular Membranes/metabolism ; Molecular Sequence Data ; Molecular Weight ; Peas ; Plant Proteins/chemistry/*metabolism ; Protein Precursors/chemistry/*metabolism ; Protein Processing, Post-Translational ; Ribulose-Bisphosphate Carboxylase/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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