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  • American Association for the Advancement of Science (AAAS)  (1,709)
  • Nature Publishing Group
  • 2020-2022  (2)
  • 1985-1989  (2,721)
  • 1935-1939  (338)
  • 1930-1934  (211)
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  • 1
    Publication Date: 1989-08-25
    Description: Activation of protein kinase C (PKC) can mimic the biophysical effects of associative learning on neurons. Furthermore, classical conditioning of the rabbit nictitating membrane (a form of associative learning) produces translocation of PKC activity from the cytosolic to the membrane compartments of the CA1 region of the hippocampus. Evidence is provided here for a significant change in the amount and distribution of PKC within the CA1 cell field of the rabbit hippocampus that is specific to learning. This change is seen at 1 day after learning as focal increments of [3H]phorbol-12,13-dibutyrate binding to PKC in computer-generated images produced from coronal autoradiographs of rabbit brain. In addition, 3 days after learning, the autoradiographs suggest a redistribution of PKC within CA1 from the cell soma to the dendrites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olds, J L -- Anderson, M L -- McPhie, D L -- Staten, L D -- Alkon, D L -- New York, N.Y. -- Science. 1989 Aug 25;245(4920):866-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular and Cellular Neurobiology, National Institute of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772638" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoradiography ; Hippocampus/*enzymology ; *Memory ; Phorbol 12,13-Dibutyrate/metabolism ; Protein Kinase C/*analysis ; Rabbits
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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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  • 2
    Publication Date: 1988-03-18
    Description: The Whittier Narrows earthquake sequence (local magnitude, M(L) = 5.9), which caused over $358-million damage, indicates that assessments of earthquake hazards in the Los Angeles metropolitan area may be underestimated. The sequence ruptured a previously unidentified thrust fault that may be part of a large system of thrust faults that extends across the entire east-west length of the northern margin of the Los Angeles basin. Peak horizontal accelerations from the main shock, which were measured at ground level and in structures, were as high as 0.6g (where g is the acceleration of gravity at sea level) within 50 kilometers of the epicenter. The distribution of the modified Mercalli intensity VII reflects a broad north-south elongated zone of damage that is approximately centered on the main shock epicenter.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hauksson, E -- Jones, L M -- Davis, T L -- Hutton, L K -- Williams, P -- Bent, A L -- Brady, A G -- Reasenberg, P A -- Michael, A J -- Yerkes, R F -- Etheredge, E -- Porcella, R L -- Johnston, M J -- Reagor, G -- Stover, C W -- Bufe, C G -- Cranswick, E -- Shakal, A K -- New York, N.Y. -- Science. 1988 Mar 18;239(4846):1409-12.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17769737" target="_blank"〉PubMed〈/a〉
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  • 3
    Publication Date: 1989-05-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weil, S C -- Reid, M S -- Nilles, L A -- Chisholm, R L -- Rosner, G L -- Swanson, M S -- Carrino, J J -- Diaz, M O -- LE Beau, M M -- New York, N.Y. -- Science. 1989 May 19;244(4906):825-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17802240" target="_blank"〉PubMed〈/a〉
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  • 4
    Publication Date: 1989-07-28
    Description: Amyloid deposition in senile plaques and the cerebral vasculature is a marker of Alzheimer's disease. Whether amyloid itself contributes to the neurodegenerative process or is simply a by-product of that process is unknown. Pheochromocytoma (PC12) and fibroblast (NIH 3T3) cell lines were transfected with portions of the gene for the human amyloid precursor protein. Stable PC12 cell transfectants expressing a specific amyloid-containing fragment of the precursor protein gradually degenerated when induced to differentiate into neuronal cells with nerve growth factor. Conditioned medium from these cells was toxic to neurons in primary hippocampal cultures, and the toxic agent could be removed by immunoabsorption with an antibody directed against the amyloid polypeptide. Thus, a peptide derived from the amyloid precursor may be neurotoxic.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yankner, B A -- Dawes, L R -- Fisher, S -- Villa-Komaroff, L -- Oster-Granite, M L -- Neve, R L -- HD 18655/HD/NICHD NIH HHS/ -- HD 18658/HD/NICHD NIH HHS/ -- NS 01240/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1989 Jul 28;245(4916):417-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Harvard Medical School, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2474201" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*etiology/pathology ; Amyloid/genetics/*physiology ; Blotting, Northern ; Cell Line ; Fibroblasts ; Gene Expression Regulation ; Humans ; Immunoblotting ; Neurons/pathology ; Nucleic Acid Hybridization ; Pheochromocytoma ; Protein Precursors/genetics/*physiology ; RNA/analysis/genetics ; Restriction Mapping ; Transfection ; Tumor Cells, Cultured
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  • 5
    Publication Date: 1985-12-20
    Description: Plasmodium vivax is one of the four malaria parasites that cause disease in humans. The structure of the immunodominant repeating peptide of the circumsporozoite (CS) protein of P. vivax was determined. A fragment of P. vivax DNA that encodes this tandemly repeating epitope was isolated by use of an oligonucleotide probe whose sequence is thought to be conserved in CS protein genes. DNA sequence analysis of the P. vivax clone indicates that the CS repeat is nine amino acids in length (Gly-Asp-Arg-Ala-Asp-Gly-Gln-Pro-Ala). The structure of the repeating region was confirmed with synthetic peptides and monoclonal antibodies directed against P. vivax sporozoites. This information should allow synthesis of a vaccine for P. vivax that is similar to the one being tested for P. falciparum.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McCutchan, T F -- Lal, A A -- de la Cruz, V F -- Miller, L H -- Maloy, W L -- Charoenvit, Y -- Beaudoin, R L -- Guerry, P -- Wistar, R Jr -- Hoffman, S L -- New York, N.Y. -- Science. 1985 Dec 20;230(4732):1381-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2416057" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, Surface/*genetics ; Base Sequence ; DNA Restriction Enzymes ; Epitopes/*genetics ; *Genes ; Plasmodium vivax/*immunology ; Species Specificity
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  • 6
    Publication Date: 1987-02-27
    Description: The circumsporozoite (CS) protein of Plasmodium falciparum is the focus of intense efforts to develop an antisporozoite malaria vaccine. Localization of sites for T-cell recognition on this molecule is critical for vaccine design. By using an algorithm designed to predict T-cell sites and a large panel of H-2 congenic mice, a major nonrepetitive T-cell site was located. When a synthetic peptide corresponding to this site was covalently linked to the major B-cell site on the molecule, an immunogen capable of eliciting a high-titer antibody response was formed. This peptide sequence could prime helper T cells for a secondary response to the intact CS protein. The new helper T-cell site is located outside the repetitive region of the CS protein and appears to be the immunodominant T site on the molecule. This approach should be useful in the rational design and construction of vaccines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Good, M F -- Maloy, W L -- Lunde, M N -- Margalit, H -- Cornette, J L -- Smith, G L -- Moss, B -- Miller, L H -- Berzofsky, J A -- New York, N.Y. -- Science. 1987 Feb 27;235(4792):1059-62.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2434994" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibody Formation ; Antigens, Protozoan/immunology ; Antigens, Surface/*immunology ; B-Lymphocytes/immunology ; Epitopes/*immunology ; Mice ; Peptide Fragments/chemical synthesis/*immunology ; Plasmodium falciparum/*immunology ; *Protozoan Proteins ; Receptors, Antigen, B-Cell/immunology ; Receptors, Antigen, T-Cell/immunology ; T-Lymphocytes/immunology ; T-Lymphocytes, Helper-Inducer/*immunology ; Vaccines/immunology
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  • 7
    Publication Date: 1986-03-21
    Description: A global array of 20 radio observatories was used to measure the three-dimensional position and velocity of the two meteorological balloons that were injected into the equatorial region of the Venus atmosphere near Venus midnight by the VEGA spacecraft on 11 and 15 June 1985. Initial analysis of only radial velocities indicates that each balloon was blown westward about 11,500 kilometers (8,000 kilometers on the night side) by zonal winds with a mean speed of about 70 meters per second. Excursions of the data from a model of constant zonal velocity were generally less than 3 meters per second; however, a much larger variation was evident near the end of the flight of the second balloon. Consistent systematic trends in the residuals for both balloons indicate the possibility of a solar-fixed atmospheric feature. Rapid variations in balloon velocity were often detected within a single transmission (330 seconds); however, they may represent not only atmospheric motions but also self-induced aerodynamic motions of the balloon.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Preston, R A -- Hildebrand, C E -- Purcell, G H Jr -- Ellis, J -- Stelzried, C T -- Finley, S G -- Sagdeev, R Z -- Linkin, V M -- Kerzhanovich, V V -- Altunin, V I -- Kogan, L R -- Kostenko, V I -- Matveenko, L I -- Pogrebenko, S V -- Strukov, I A -- Akim, E L -- Alexandrov, Y N -- Armand, N A -- Bakitko, R N -- Vyshlov, A S -- Bogomolov, A F -- Gorchankov, Y N -- Selivanov, A S -- Ivanov, N M -- Tichonov, V F -- Blamont, J E -- Boloh, L -- Laurans, G -- Boischot, A -- Biraud, F -- Ortega-Molina, A -- Rosolen, C -- Petit, G -- New York, N.Y. -- Science. 1986 Mar 21;231(4744):1414-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17748082" target="_blank"〉PubMed〈/a〉
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  • 8
    Publication Date: 1985-09-06
    Description: The neu oncogene, identified in ethylnitrosourea-induced rat neuroglioblastomas, had strong homology with the erbB gene that encodes the epidermal growth factor receptor. This homology was limited to the region of erbB encoding the tyrosine kinase domain. It was concluded that the neu gene is a distinct novel gene, as it is not coamplified with sequences encoding the EGF receptor in the genome of the A431 tumor line and it maps to human chromosome 17.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schechter, A L -- Hung, M C -- Vaidyanathan, L -- Weinberg, R A -- Yang-Feng, T L -- Francke, U -- Ullrich, A -- Coussens, L -- CA 39964-01/CA/NCI NIH HHS/ -- GM 26105/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1985 Sep 6;229(4717):976-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2992090" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Neoplasm/*genetics ; Chromosome Mapping ; Chromosomes, Human, 16-18 ; DNA, Neoplasm/*genetics ; Genes ; Genetic Linkage ; Humans ; Neoplasm Proteins/*genetics ; Neuroblastoma/genetics ; Neuroglia ; *Oncogenes ; Rats ; Receptor, Epidermal Growth Factor ; Receptors, Cell Surface/*genetics
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  • 9
    Publication Date: 1986-07-04
    Description: The Voyager 2 photopolarimeter successfully completed the Uranus encounter, acquiring new data on the planet's atmosphere, its principal satellites, and its ring system. Spatially resolved photometry of the atmosphere at 0.27 micrometer shows no enhancement in absorption toward the pole, unlike the case for Jupiter and Saturn. Stellar occultation measurements indicate the temperature at the 1-millibar level over the north pole is near 90 kelvins. The geometric albedos of the five large satellites of Uranus were measured at 0.27 and 0.75 micrometer and indicate the presence of low albedo, spetrally flat absorbing material. Titania seems to have a fluffy surface, as indicated by its phase curve. The nine ground-based rings were detected, and their internal structure, optical depths, and positions were determined. The sharp edges of the in ring made it possible to measure its edge thickness (less than 150 meters) and particle sizes (less than 30 meters); little or no dust was detcted. New narrow rings and partial rings (arcs) were measured, and the narrow component of the eta ring was found to be discontinuous.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lane, A L -- Hord, C W -- West, R A -- Esposito, L W -- Simmons, K E -- Nelson, R M -- Wallis, B D -- Buratti, B J -- Horn, L J -- Graps, A L -- Pryor, W R -- New York, N.Y. -- Science. 1986 Jul 4;233(4759):65-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17812890" target="_blank"〉PubMed〈/a〉
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  • 10
    Publication Date: 1986-10-10
    Description: An orbiting spacecraft and ground observatories have been used to obtain interferometric observations of cosmic radio sources. The Tracking and Data Relay Satellite System (TDRSS) was used as the orbiting observatory in conjunction with two 64- meter radio telescopes at ground observatories, one in Australia and one in Japan. The quasars 1730-130 (NRAO 530), 1510-089, and 1741-038 were observed at a frequency of 2.3 gigahertz, and a maximum projected baseline of 1.4 earth diameters was achieved. All quasar observations for which valid data were acquired resulted in detected fringes. Many of the techniques proposed for a dedicated very long baseline interferometry observatory in space were used successfully in this experiment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levy, G S -- Linfield, R P -- Ulvestad, J S -- Edwards, C D -- Jordan, J F Jr -- DI Nardo, S J -- Christensen, C S -- Preston, R A -- Skjerve, L J -- Stavert, L R -- Burke, B F -- Whitney, A R -- Cappallo, R J -- Rogers, A E -- Blaney, K B -- Maher, M J -- Ottenhoff, C H -- Jauncey, D L -- Peters, W L -- Nishimura, T -- Hayashi, T -- Takano, T -- Yamada, T -- Hirabayashi, H -- Morimoto, M -- Inoue, M -- Shiomi, T -- Kawaguchi, N -- Kunimori, H -- New York, N.Y. -- Science. 1986 Oct 10;234(4773):187-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17746478" target="_blank"〉PubMed〈/a〉
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