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  • Adult  (3)
  • *Anaphase
  • ASTROPHYSICS
  • Life Sciences (General)
  • American Association for the Advancement of Science (AAAS)  (4)
  • 1995-1999  (3)
  • 1980-1984  (1)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (4)
Years
Year
  • 1
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    Mitosis in living budding yeast: anaphase A but no metaphase plate (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-25
    Description: Chromosome movements and spindle dynamics were visualized in living cells of the budding yeast Saccharomyces cerevisiae. Individual chromosomal loci were detected by expression of a protein fusion between green fluorescent protein (GFP) and the Lac repressor, which bound to an array of Lac operator binding sites integrated into the chromosome. Spindle microtubules were detected by expression of a protein fusion between GFP and Tub1, the major alpha tubulin. Spindle elongation and chromosome separation exhibited biphasic kinetics, and centromeres separated before telomeres. Budding yeast did not exhibit a conventional metaphase chromosome alignment but did show anaphase A, movement of the chromosomes to the poles.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Straight, A F -- Marshall, W F -- Sedat, J W -- Murray, A W -- New York, N.Y. -- Science. 1997 Jul 25;277(5325):574-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Box 0444, School of Medicine, University of California at San Francisco, San Francisco, CA 94143-0444, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9228009" target="_blank"〉PubMed〈/a〉
    Keywords: *Anaphase ; Bacterial Proteins/metabolism ; Centromere/chemistry/physiology ; Chromatids/physiology ; Chromosomes, Fungal/chemistry/*physiology ; *Escherichia coli Proteins ; Green Fluorescent Proteins ; Lac Repressors ; Luminescent Proteins ; *Metaphase ; Microscopy, Fluorescence ; Microtubules/ultrastructure ; *Mitosis ; Movement ; Operator Regions, Genetic ; Recombinant Fusion Proteins ; Repressor Proteins/metabolism ; Saccharomyces cerevisiae/*cytology ; Spindle Apparatus/physiology/ultrastructure ; Telomere/physiology ; Tubulin/analysis
    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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  • 2
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    Brain activation modulated by sentence comprehension (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-10-04
    Description: The comprehension of visually presented sentences produces brain activation that increases with the linguistic complexity of the sentence. The volume of neural tissue activated (number of voxels) during sentence comprehension was measured with echo-planar functional magnetic resonance imaging. The modulation of the volume of activation by sentence complexity was observed in a network of four areas: the classical left-hemisphere language areas (the left laterosuperior temporal cortex, or Wernicke's area, and the left inferior frontal gyrus, or Broca's area) and their homologous right-hemisphere areas, although the right areas had much smaller volumes of activation than did the left areas. These findings generally indicate that the amount of neural activity that a given cognitive process engenders is dependent on the computational demand that the task imposes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Just, M A -- Carpenter, P A -- Keller, T A -- Eddy, W F -- Thulborn, K R -- MH-00662/MH/NIMH NIH HHS/ -- MH-19102/MH/NIMH NIH HHS/ -- MH-29617/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1996 Oct 4;274(5284):114-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, Carnegie Mellon University, Pittsburgh, PA 15213, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8810246" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; *Brain Mapping ; Cognition/*physiology ; Dominance, Cerebral ; Female ; Frontal Lobe/anatomy & histology/*physiology ; Humans ; Language Tests ; Magnetic Resonance Imaging ; Male ; Temporal Lobe/anatomy & histology/*physiology
    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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  • 3
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    Polyclonal origin of colonic adenomas in an XO/XY patient with FAP (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-05-24
    Description: It is widely accepted that tumors are monoclonal in origin, arising from a mutation or series of mutations in a single cell and its descendants. The clonal origin of colonic adenomas and uninvolved intestinal mucosa from an XO/XY mosaic individual with familial adenomatous polyposis (FAP) was examined directly by in situ hybridization with Y chromosome probes. In this patient, the crypts of the small and large intestine were clonal, but at least 76 percent of the microadenomas were polyclonal in origin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Novelli, M R -- Williamson, J A -- Tomlinson, I P -- Elia, G -- Hodgson, S V -- Talbot, I C -- Bodmer, W F -- Wright, N A -- New York, N.Y. -- Science. 1996 May 24;272(5265):1187-90.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Genetics Laboratory, Imperial Cancer Research Fund (ICRF) Laboratories, London, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8638166" target="_blank"〉PubMed〈/a〉
    Keywords: Adenomatous Polyposis Coli/*genetics/pathology ; Adult ; Clone Cells ; Colon/*pathology ; DNA Probes ; Genotype ; Humans ; Ileum/pathology ; In Situ Hybridization ; In Situ Hybridization, Fluorescence ; Intestinal Mucosa/*pathology ; Karyotyping ; Male ; *Mosaicism ; Phenotype ; Y Chromosome
    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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  • 4
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    Treatment of a 12-hour shift of sleep schedule with benzodiazepines (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-06-15
    Description: Normal sleepers underwent sleep recordings and daytime tests of sleep tendency, performance, and mood while being shifted 180 degrees in their sleep-wake schedule. After two baseline 24-hour periods, subjects postponed sleep until noon. For the next three 24-hour periods, they were in bed from 1200 to 2000 and received triazolam, flurazepam, or placebo at bedtime in parallel groups. Placebo subjects showed significant sleep loss after the shift. Active medication reversed this sleep loss. Despite good sleep, flurazepam subjects appeared most impaired of the three groups on objective assessments of waking function; triazolam subjects were least impaired.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seidel, W F -- Roth, T -- Roehrs, T -- Zorick, F -- Dement, W C -- NIMH 05804/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1984 Jun 15;224(4654):1262-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6729454" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Arousal/drug effects ; Benzodiazepines/pharmacology/*therapeutic use ; Emotions/drug effects ; Female ; Flurazepam/pharmacology/therapeutic use ; Humans ; Male ; Sleep/drug effects ; Sleep Wake Disorders/*drug therapy ; Triazolam/pharmacology/therapeutic use
    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)
    Location Call Number Expected Availability
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    PAPER CURRENT
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