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  • Visual Perception/*physiology  (6)
  • Molecular Weight  (5)
  • American Association for the Advancement of Science (AAAS)  (11)
  • 1980-1984  (11)
  • 1960-1964
  • 1930-1934
  • 1982  (11)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (11)
Years
  • 1980-1984  (11)
  • 1960-1964
  • 1930-1934
Year
  • 1
    Publication Date: 1982-07-02
    Description: Liposomes were used to deliver ribosomal RNA's from the different organisms into cultivated mouse plasmacytoma cells. Ribosomal RNA from Escherichia coli was degraded intracellularly within 1 hour, whereas mouse and yeast ribosomal RNA's were degraded more slowly. This indicates that cells can discriminated between different ribosomal RNA's.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lavelle, D -- Ostro, M J -- Giacomoni, D -- GM 27935/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1982 Jul 2;217(4554):59-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6178157" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Escherichia coli ; Kinetics ; *Liposomes ; Mice ; Molecular Weight ; Neoplasms, Experimental/metabolism ; Plasmacytoma/*metabolism ; RNA, Bacterial/metabolism ; RNA, Ribosomal/*metabolism ; Saccharomyces cerevisiae ; Species Specificity
    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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  • 2
    Publication Date: 1982-05-21
    Description: 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〉
    Keywords: 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
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-01-08
    Description: Contrary to a previous assumption, the center of the expanding pattern of visual flow is not generally useful as an aid in judging the direction of self motion since its direction depends on the direction of gaze. For some visual environments, however, the point of maximum rate of change of magnification in the retinal image coincides with the direction of self motion, independently of the direction of gaze. This visual indicator could be used to judge the direction of self motion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Regan, D -- Beverley, K I -- New York, N.Y. -- Science. 1982 Jan 8;215(4529):194-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7053572" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Motion Perception/*physiology ; Orientation/physiology ; Retina/physiology ; Visual Perception/*physiology
    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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  • 4
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-10-22
    Description: In a three-choice discrimination task three pigeons learned to distinguish each letter of the alphabet from all other letters. Errors during learning were based on 54 presentations of each target letter with every other letter. The errors were used to scale letters in a multidimensional similarity space and to associate them in hierarchical clusters. The results resembled those generated from similarity judgments by humans, suggesting cross-task and cross-species generality in processes of letter discrimination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Blough, D S -- MH-02456/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1982 Oct 22;218(4570):397-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123242" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Columbidae/*physiology ; Form Perception/physiology ; Visual Perception/*physiology
    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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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-12-24
    Description: Purification of prions from scrapie-infected hamster brain yielded a protein that was not found in a similar fraction from uninfected brain. The protein migrated with an apparent molecular size of 27,000 to 30,000 daltons in sodium dodecyl sulfate polyacrylamide gels. The resistance of this protein to digestion by proteinase K distinguished it from proteins of similar molecular weight found in normal hamster brain. Initial results suggest that the amount of this protein correlates with the titer of the agent.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bolton, D C -- McKinley, M P -- Prusiner, S B -- AG02132/AG/NIA NIH HHS/ -- NS14069/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1982 Dec 24;218(4579):1309-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6815801" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*pathology ; Brain Chemistry ; Centrifugation, Density Gradient ; Cricetinae ; Electrophoresis, Polyacrylamide Gel ; Endopeptidase K ; Endopeptidases/metabolism ; Molecular Weight ; Nerve Tissue Proteins/*isolation & purification ; Prions/growth & development ; Scrapie/*pathology ; Sheep ; Virus Activation
    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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  • 6
    Publication Date: 1982-04-16
    Description: Attachment of Mycoplasma pneumoniae to host cell by means of a specialized terminus initiates infection. Monoclonal antibodies to a surface protein (Pl) inhibit this process, and react with a region of the tip covered with peplomer-like particles. Since antibodies against the Pl protein are generated by natural and experimental infection and by immunization, the substance may be an important determinant of protective immunity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hu, P C -- Cole, R M -- Huang, Y S -- Graham, J A -- Gardner, D E -- Collier, A M -- Clyde, W A Jr -- HL-19171/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1982 Apr 16;216(4543):313-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6801766" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/*immunology ; Bacterial Vaccines/immunology ; Cell Adhesion ; Molecular Weight ; Mycoplasma pneumoniae/immunology/*ultrastructure ; Pneumonia, Mycoplasma/immunology/*microbiology
    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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  • 7
    Publication Date: 1982-01-22
    Description: A 180,000-dalton single-chain molecule (human pro-C3) is the precursor of the third component of human complement (C3), a disulfide-linked two-chain protein. The pro-C3 is converted by limited proteolysis to C3. The relationship between pro-C3 and C3 was established with the use of Hep G2, a cell line derived from a human hepatocellular carcinoma, which synthesizes at least 17 plasma proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morris, K M -- Goldberger, G -- Colten, H R -- Aden, D P -- Knowles, B B -- AM 16392/AM/NIADDK NIH HHS/ -- CA 18470/CA/NCI NIH HHS/ -- CA 25875/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 22;215(4531):399-400.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7199205" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Complement C3/*biosynthesis ; Humans ; Liver Neoplasms, Experimental/*metabolism ; Macromolecular Substances ; Molecular Weight ; Protein Precursors/metabolism
    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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  • 8
    Publication Date: 1982-10-22
    Description: The [2-14C]deoxyglucose method was used to identify the cerebral areas related to vision in the rhesus monkey (Macaca mulatta). This was achieved by comparing glucose utilization in a visually stimulated with that in a visually deafferented hemisphere. The cortical areas related to vision included the entire expanse of striate, prestriate, and inferior temporal cortex as far forward as the temporal pole, the posterior part of the inferior parietal lobule, and the prearcuate and inferior prefrontal cortex. Subcortically, in addition to the dorsal lateral geniculate nucleus and superficial layers of the superior colliculus, and structures related to vision included large parts of the pulvinar, caudate, putamen, claustrum, and amygdala. These results, which are consonant with a model of visual function that postulates an occipito-temporo-prefrontal pathway for object vision and an occipito-parieto-prefrontal pathway for spatial vision, reveal the full extent of those pathways and identify their points of contact with limbic, striatal, and diencephalic structures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Macko, K A -- Jarvis, C D -- Kennedy, C -- Miyaoka, M -- Shinohara, M -- Sololoff, L -- Mishkin, M -- New York, N.Y. -- Science. 1982 Oct 22;218(4570):394-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123241" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoradiography ; Brain Mapping ; Cerebral Cortex/*cytology/metabolism ; Deoxyglucose/metabolism ; Macaca mulatta ; Visual Pathways/*cytology/metabolism ; Visual Perception/*physiology
    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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  • 9
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-05-14
    Description: Five monkeys were treated from birth with oral doses of mercury as methylmercury (50 micrograms per kilogram of body weight per day); concentrations in the blood peaked at 1.2 to 1.4 parts per million; and declined after weaning from infant formula to a steady level of 0.6 to 0.9 part per million. There were no overt signs of toxicity. When tested between 3 and 4 years of age under conditions of both high and low luminance, treated monkeys exhibited spatial vision that was impaired compared with that of control monkeys.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rice, D C -- Gilbert, S G -- New York, N.Y. -- Science. 1982 May 14;216(4547):759-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7079739" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Ethylmercury Compounds/*poisoning ; Macaca fascicularis ; Mercury Poisoning/*physiopathology ; Vision Disorders/*chemically induced ; Visual Acuity ; Visual Fields ; Visual Perception/*physiology
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-04-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stork, D G -- Levinson, J Z -- New York, N.Y. -- Science. 1982 Apr 9;216(4542):204-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7063883" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Visual Cortex/physiology ; Visual Fields ; Visual Perception/*physiology
    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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