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  • Physics  (79)
  • Humans  (73)
  • COMMUNICATIONS AND RADAR  (61)
  • 1980-1984  (213)
  • 1960-1964
  • 1983  (213)
  • 1960
  • 1
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    Anti-T-cell reagents for human bone marrow transplantation: ricin linked to three monoclonal antibodies (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-11-04
    Description: Three new reagents that react against human T cells were synthesized by covalently linking the toxin ricin to monoclonal antibodies recognizing differentiation antigens on the surface of T lymphocytes. Each of these immunotoxins selectively inhibited T-cell proliferation when the cells were incubated in the presence of lactose. Multipotent human stem cells were inhibited only at much higher concentrations. Mixtures of all three immunotoxins were more effective than any one alone. These reagents have the potential for preventing graft-versus-host disease in man.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vallera, D A -- Ash, R C -- Zanjani, E D -- Kersey, J H -- LeBien, T W -- Beverley, P C -- Neville, D M Jr -- Youle, R J -- CA-25097/CA/NCI NIH HHS/ -- CA-31618/CA/NCI NIH HHS/ -- CA-31685/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Nov 4;222(4623):512-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6353579" target="_blank"〉PubMed〈/a〉
    Keywords: *Antibodies, Monoclonal ; Antigen-Antibody Complex ; Bone Marrow/immunology ; *Bone Marrow Transplantation ; Hematopoietic Stem Cells/immunology ; Humans ; *Immunosuppressive Agents ; Lymphocyte Activation ; Ricin/*immunology ; T-Lymphocytes/*immunology
    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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    PAPER CURRENT
  • 2
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    Co-release of ACTH and beta-endorphin immunoreactivity in human subjects in response to central cholinergic stimulation (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-10-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Risch, S C -- Kalin, N H -- Janowsky, D S -- Cohen, R M -- Pickar, D -- Murphy, D L -- New York, N.Y. -- Science. 1983 Oct 7;222(4619):77.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6312560" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenocorticotropic Hormone/*blood ; Cholinergic Fibers/*physiology ; Endorphins/*blood ; Humans ; Physostigmine/pharmacology
    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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    Tracking antenna arrays for near-millimeter waves (1983)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: A two-dimensional monolithic array has been developed that gives the elevation and azimuth of point source targets. The array is an arrangement of rows and columns of antennas and bismuth bolometer detectors on a fused quartz substrate. Energy is focused onto the array through a lens placed on the back side of the substrate. At 1.38 mm with a 50 mm diameter objective lens, the array has demonstrated a positioning accuracy of 26 arcmin. In a differential mode this precision improves to 9 arcsec, limited by the mechanics of the rotating stage. This tracking could be automated to a fast two-step procedure where a source is first located to the nearest row and column, and then precisely located by scanning. With signal processing the array should be able to track multiple sources.
    Keywords: COMMUNICATIONS AND RADAR
    Type: IEEE Transactions on Antennas and Propagation (ISSN 0018-926X); AP-31; May 1983
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
    Electronic Resource
    Electronic Resource
    Electrical properties of ion-implanted poly(p-phenylene sulfide) (1983)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 21 (1983), S. 537-551 
    Details
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Ion implantation of impurities into thin films of poly(p-phenylene sulfide) (PPS) is found to increase the conductivity of the material by up to 12 orders of magnitude. The increase is stable under exposure to ambient conditions, in contrast to the instability of the conductivity increases in PPS produced by chemical doping with AsF5. PPS films 0.1-0.2 μm thick are spin cast from solution onto interdigitated electrodes patterned on an oxidized silicon substrate. The room-temperature interelectrode resistance is measured as a function of implantation fluence. An estimate of film conductivity is obtained from this resistance with a simple model for the electrode and film geometry. A first experiment yielded similar conductivity increases for implantation of either arsenic or krypton. At a fluence of 1 × 1016cm-;2, which corresponds to an average impurity concentration of 2.5 × 1021cm-3, the conductivity reaches an apparently saturated value of 1.5 × 10-5 (Ω cm)-1. Infrared spectra of the films before and after implantation suggest that crosslinking may be present in the implanted films, and Auger studies show stoichiometric changes throughout the implanted layer. These results suggest that the observed conductivity changes are the result of molecular rearrangements produced by the implantation rather than the result of specific chemical doping. Specific chemical doping may, however, explain the results of a second experiment in which implantation of bromine resulted in substantially larger conductivities found to increase at an approximate linear rate from a value of 1.0 × 10-4 (Ω cm)-1 at a fluence of 1 × 1016 cm-2 to a value of 4.0 × 10-4 (Ω cm)-1 at a fluence of 3.16 × 1016 cm-2.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1983.180210405
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    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    The dependence of dielectric response of an elastomer on hydrostatic pressure (1983)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 21 (1983), S. 1195-1203 
    Details
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Dielectric methods have been employed to study the high-pressure behavior of a polyurethane elastomer (Solithane 113) in the vicinity of its α transition. The α-loss peak is shifted to higher temperatures and broadened somewhat with the application of hydrostatic pressure up to 6.4 kbars. The slope of Tα vs. P, or dTα/dP, obtained at low frequencies was found to be equal to dTg/dP obtained by a volumetric method. Moreover, it attained a nonzero limiting value at high pressures for each frequency tested (3 - 30,000 Hz) and the limiting value itself increased with increasing frequency from 10.5°C/kbar at 3 Hz to 18°C/kbar at 30,000 Hz. The activation enthalpy ΔH* was found to be nearly constant over the pressure range tested, but the activation volume ΔV* decreased with increasing pressure. The relation dTα/dP = T (ΔV*/ΔH*) was shown to hold for the elastomer.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1983.180210718
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  • 6
    Electronic Resource
    Electronic Resource
    Mesomorphic solutions of cellulose triacetate in trifluoroacetic acid halogenated solvent mixtures: Phase separations and factors affecting the cholesteric pitch (1983)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 21 (1983), S. 1079-1090 
    Details
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Cellulose triacetate (CTA) forms cholesteric mesophases in trifluoroacetic acetic acid (TFA) and mixtures of TFA and CH2Cl2, 1,2-dichloroethane (1,2-DCE), and CHCl3. Cholesteric pitches and solution flow times indicate that the order of solvent powers is TFA-CH2Cl2 〉 TFA-1,2-DCE 〉 TFA 〉 TFA-CHCl3, which is the order of decreasing acidity of the solvent systems. With TFA-CH2Cl2 as solvent, the one-fourth power of the pitch varies inversely with the CTA concentration, and increases linearly with temperature. The pitch increases exponentially with time and increases faster the more acidic the solvent. In a magnetic field a cholesteric to nematic transition occurs. A minimum in solution viscosity occurs at 34% w/v of CH2Cl2 for solutions in TFA-CH2Cl2. The miscibility gap as a function of molecular weight depends on the solvent composition and is smaller the higher the acidity of the solvent. Agreement between the experimentally observed A and B points and the theoretical points is better for the Khokhlov and Semenov theory for semiflexible chains than for the original Flory theory or the Flory-Ronca modification.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1983.180210708
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Photoconductivity and hole transport in polymers of aromatic amine-containing methacrylates (1983)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 21 (1983), S. 3033-3033 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1983.170211018
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Synthesis of aminimide monomers and polymers (1983)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 21 (1983), S. 2607-2607 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1983.170210842
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  • 9
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    Human milk kills parasitic intestinal protozoa (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-09-23
    Description: Giardia lamblia, a common pathogenic intestinal parasite of humans, was rapidly killed by exposure to normal human milk in vitro. The killing did not depend on secretory immunoglobulin A. Entamoeba histolytica, the dysentery amoeba, was also killed by normal human milk. Giardia-cidal activity cochromatographed with an unusual lipase that is present in the milk of humans but not of lower mammals. Human milk may play a protective role in infants exposed to this parasite.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gillin, F D -- Reiner, D S -- Wang, C S -- AI19863/AI/NIAID NIH HHS/ -- HD14104/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 23;221(4617):1290-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6310751" target="_blank"〉PubMed〈/a〉
    Keywords: Entamoeba histolytica/growth & development ; Entamoebiasis/prevention & control ; Female ; Giardia/growth & development ; Giardiasis/*prevention & control ; Humans ; Immunoglobulin A, Secretory/immunology ; Intestines/parasitology ; Milk, Human/*parasitology ; Trichomonas Infections/prevention & control ; Trichomonas vaginalis/growth & development
    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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    Secretion of human interferons by yeast (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-02-11
    Description: Plasmids were constructed to direct synthesis of the human interferons IFN-alpha 1, IFN-alpha 2, and IFN-gamma in the yeast Saccharomyces cerevisiae. Expression of IFN genes containing coding sequences for secretion signals resulted in the secretion of IFN activity. A large proportion of the IFN-alpha 1 and IFN-alpha 2 isolated from the yeast cell growth media had the same amino termini as the natural mature interferons, suggesting a removal of the signal sequences identical to that of human cells. These results show that a lower eukaryote, such as yeast, can utilize and process a human signal sequence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hitzeman, R A -- Leung, D W -- Perry, L J -- Kohr, W J -- Levine, H L -- Goeddel, D V -- New York, N.Y. -- Science. 1983 Feb 11;219(4585):620-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6186023" target="_blank"〉PubMed〈/a〉
    Keywords: Cloning, Molecular ; Gene Expression Regulation ; Humans ; Interferons/*genetics/secretion ; Peptides/physiology ; Plasmids ; Protein Processing, Post-Translational ; Protein Sorting Signals ; RNA Processing, Post-Transcriptional ; Saccharomyces cerevisiae/genetics
    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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