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  • Artikel  (6)
  • American Association for the Advancement of Science (AAAS)  (6)
  • American Institute of Physics (AIP)
  • Amsterdam : Elsevier
  • Geological Society of America (GSA)
  • Geological Society of London
  • 1985-1989  (2)
  • 1980-1984  (4)
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  • Informatik  (6)
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  • Artikel  (6)
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  • 1
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    Transformation induced by Abelson murine leukemia virus involves production of a polypeptide growth factor (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-05-21
    Beschreibung: Rat embryo fibroblasts transformed by Abelson murine leukemia virus (MuLV) produce and release a transforming growth factor (TGF). Production of this factor is correlated with a tyrosine-specific protein kinase that is functionally active and is associated with the major Abelson MuLV gene product, P120. Transformation-defective mutants of Abelson MuLV do not transform cells, do not have their virus coded transforming gene product phosphorylated in tyrosine, and do not induce TGF production. Abelson MuLV-induced TGF morphologically transforms cells in culture, competes with 125I-labeled epidermal growth factor (EGF) for binding to cell receptors, and induces phosphorylation of tyrosine acceptor sites in the 160,000-dalton EGF membrane receptor. After purification to homogeneity, Abelson virus-induced TGF migrates as a single polypeptide with an apparent size of 7400 daltons as determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Twardzik, D R -- Todaro, G J -- Marquardt, H -- Reynolds, F H Jr -- Stephenson, J R -- New York, N.Y. -- Science. 1982 May 21;216(4548):894-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6177040" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Abelson murine leukemia virus ; Animals ; *Cell Transformation, Neoplastic ; *Cell Transformation, Viral ; Molecular Weight ; Peptides/*metabolism ; Phosphotyrosine ; Rats ; Receptor, Epidermal Growth Factor ; Receptors, Cell Surface/metabolism ; Transforming Growth Factors ; Tyrosine/analogs & derivatives/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    Isolation of human oncogene sequences (v-fes homolog) from a cosmid library (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-06-04
    Beschreibung: To define the human homolog (or homologs) of transforming sequences (v-fes gene) common to Gardner (GA) and Snyder Theilen (ST) isolates of feline sarcoma virus (FeSV), a representative library of human lung carcinoma DNA in a cosmid vector system was constructed. Three cosmid clones were isolated containing GA/ST FeSV v-fes homologous cellular sequences, within 32- to 42-kilobase cellular inserts representing 56 kilobases of contiguous human cellular DNA. Sequences both homologous to, and colinear with, GA or ST FeSV v-fes are distributed discontinuously over a region of up to 9.5 kilobases and contain a minimum of three regions of nonhomology representing probable introns. A thymidine kinase selection system was used to show that, upon transfection to RAT-2 cells, the human c-fes sequence lacked detectable transforming activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Groffen, J -- Heisterkamp, N -- Grosveld, F -- Van de Ven, W -- Stephenson, J R -- N0I-CO-75380/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Jun 4;216(4550):1136-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6281890" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Bacteriophage lambda/genetics ; *Cell Transformation, Viral ; Cloning, Molecular/methods ; DNA Restriction Enzymes ; DNA, Recombinant ; Escherichia coli/genetics ; *Genes, Viral ; Humans ; Retroviridae/*genetics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    Sex preselection in mammals? Separation of sperm bearing Y and "O" chromosomes in the vole Microtus oregoni (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1982-11-26
    Beschreibung: The two sex determining sperm populations of the vole Microtus oregoni were separated according to DNA content by use of flow sorting instrumentation. Although the sperm were not viable, they should be useful for addressing the question of haploid expression of genes linked to sex chromosomes and for efficiently searching for biochemical markers that differentiate the two populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pinkel, D -- Gledhill, B L -- Lake, S -- Stephenson, D -- Van Dilla, M A -- New York, N.Y. -- Science. 1982 Nov 26;218(4575):904-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6753153" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Arvicolinae/genetics ; DNA/analysis ; Flow Cytometry/methods ; Fluorescent Dyes ; Male ; Sex Chromosomes/ultrastructure ; *Sex Determination Analysis ; Spermatozoa/*physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 4
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    Skeletal muscle as the potential power source for a cardiovascular pump: assessment in vivo (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1987-04-17
    Beschreibung: Skeletal muscle ventricles (SMVs) were constructed from canine latissimus dorsi and connected to a totally implantable mock circulation device. The SMVs, stimulated by an implantable pulse generator, pumped continuously for up to 8 weeks in free-running beagle dogs. Systolic pressures produced by the SMVs, initially of 139 +/- 7.2 mmHg and after 1 month of continuous pumping of 107 +/- 7 mmHg, were comparable to normal physiologic pressures in the adult beagles (114 +/- 21 mmHg). After 2 weeks of continuous pumping, the mean stroke work of the SMVs was 0.4 X 10(6) ergs, a performance that compares favorably with the animal's cardiac ventricles. This study shows that canine skeletal muscle which has not received prior training or electrical conditioning can perform sustained work at the high levels needed for an auxiliary cardiovascular pump. It might be possible eventually to use such muscle pumps in humans to assist the failing circulation and to provide support in children with certain types of congenital heart defects.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Acker, M A -- Hammond, R L -- Mannion, J D -- Salmons, S -- Stephenson, L W -- HLBI 34778/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1987 Apr 17;236(4799):324-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2951849" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenosine Triphosphatases/metabolism ; Animals ; Blood Circulation ; Blood Pressure ; *Cardiovascular Physiological Phenomena ; Dogs ; Kinetics ; Models, Biological ; Muscles/enzymology/*physiology ; Myosins/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
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    Radioactive cesium from the Chernobyl accident in the Greenland Ice Sheet (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1987-08-07
    Beschreibung: Measurements of cesium-134 and cesium-137 in Greenland snow together with models of long-range transport have been used to assess radionuclide deposition in the Arctic after the Chernobyl accident. The results suggest that a well-defined layer of radioactive cesium is now present in polar glaciers, providing a new reference for estimating snow accumulation rates and dating ice core samples.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davidson, C I -- Harrington, J R -- Stephenson, M J -- Monaghan, M C -- Pudykiewicz, J -- Schell, W R -- New York, N.Y. -- Science. 1987 Aug 7;237(4815):633-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3603043" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Accidents ; *Cesium Radioisotopes ; Greenland ; Models, Theoretical ; *Nuclear Reactors ; *Radioactive Fallout ; Snow ; Ukraine
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
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    Role of the conserved AAUAAA sequence: four AAUAAA point mutants prevent messenger RNA 3' end formation (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-11-30
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickens, M -- Stephenson, P -- R-R01-GM31892-02/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1984 Nov 30;226(4678):1045-51.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6208611" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Base Sequence ; Female ; Genes, Viral ; *Mutation ; Nucleic Acid Hybridization ; Oocytes/metabolism ; Poly A/genetics ; RNA/genetics ; RNA, Messenger/*genetics ; Simian virus 40/*genetics ; Transcription, Genetic
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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