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Kaon scattering and charged Sigma hyperon production in K-p interactions below 300 MeV/c (1982)

Ciborowski, J ; Gwizdz, J ; Kielczewska, D ; [weitere]

Institute of Physics

In: Journal of Physics G: Nuclear Physics. 1982; 8(1): 13-32. Published 1982 Jan 01. doi: 10.1088/0305-4616/8/1/005.

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Publikationsdatum: 1982-01-01

Print ISSN: 0305-4616

Thema: Physik

Publiziert von Institute of Physics

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Temperature dependence of photoelastic properties of crosslinked amorphous polyethylenes (1968)

Saunders, D. W. ; Lightfoot, D. R. ; Parsons, D. A.

New York : Wiley-Blackwell

Journal of Polymer Science Part A-2: Polymer Physics 6 (1968), S. 1183-1202

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ISSN: 0449-2978

Schlagwort(e): Physics ; Polymer and Materials Science

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie , Physik

Notizen: Crosslinked samples of polyethylene were prepared by electron irradiation of both high- and low-density polymers in the crystalline state. A further crosslinked sample was obtained by curing a high-density polyethylene by reaction with dicumyl peroxide at 180°C. The stress-strain-birefringenece relations were obtained on specimens cut from these samples at temperatures between 130 and 250°C. All samples showed a substantial decrease in stress-optical coefficient with increasing degree of crosslinking and with increasing temperature. The stress-optical properties at each temperature were extrapolated to zero degree of crosslinking to give quantities characteristic of the Gaussian network. Comparison of these properties with the theory of networks of rotational isomeric chains with both independent and interdependent rotation allows estimates to be obtained for (1) the trans-gauche energy differences in rotation around skeletal bonds and (2) the difference in principal optical polarizabilities for the CH2 group in the elastomeric state. This latter quantity is shown to be more nearly given by Denbigh's than by Bunn and Daubeny's bond polarizability values.

Zusätzliches Material: 7 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/pol.1968.160060611

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3

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Modifications to the Mackereth oxygen electrode (1967)

Flynn, D. S. ; Kilburn, D. G. ; Lilly, M. D. ; [weitere]

New York, NY [u.a.] : Wiley-Blackwell

Biotechnology and Bioengineering 9 (1967), S. 623-625

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ISSN: 0006-3592

Schlagwort(e): Chemistry ; Biochemistry and Biotechnology

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Biologie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung

Zusätzliches Material: 1 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/bit.260090415

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Blood-materials interactions: The minimum interfacial free energy and the optimum polar/apolar ratio hypotheses (1982)

Coleman, D. L. ; Gregonis, D. E. ; Andrade, J. D.

Hoboken, NJ : Wiley-Blackwell

Journal of Biomedical Materials Research 16 (1982), S. 381-398

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ISSN: 0021-9304

Schlagwort(e): Chemistry ; Polymer and Materials Science

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Medizin , Technik allgemein

Notizen: Numerous hypotheses exist to explain observed blood-materials interactions. It is the purpose of this article to test two popular hypotheses, namely, the minimum interfacial free energy hypothesis and the optimum polar/apolar ratio hypothesis. Methacrylate polymers and copolymers were characterized using the captive bubble underwater contact angle method; bulk water content was determined by gravimetric methods; streaming potential measurements were made; and surface roughness and possible particulate contamination were evaluated by reflected light microscopy. In vitro blood tests include whole blood clotting time measurements on polymer-coated tubes; centrifugal force platelet adhesion on polymer-coated coverslips; and a measure of the partial thromboplastin time, Russell's viper venom time (Stypven time), and the prothrombin time of native whole blood exposed to polymer-coated microscope slides. Results suggest that platelet adhesion correlates in the opposite direction of whole blood clotting time and partial thromboplastin time, emphasizing the need for a multiparameter approach to blood-materials testing. Based on these tests the minimum interfacial free energy hypothesis is not supported. In fact, the data suggest the opposite to be true. It is apparent that platelet adhesion can be a misleading indicator of blood compatibility. Neither hypotheses can explain the apparent conflict between the platelet adhesion data and the coagulation time data.

Zusätzliches Material: 9 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/jbm.820160407

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Perturbation of the switch-on of transcriptase activity in intermediate subviral particles from reovirus (1982)

Borsa, J. ; Sargent, M. D. ; Ewing, D. D. ; [weitere]

New York, NY [u.a.] : Wiley-Blackwell

Journal of Cellular Physiology 112 (1982), S. 10-18

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ISSN: 0021-9541

Schlagwort(e): Life and Medical Sciences ; Cell & Developmental Biology

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Biologie , Medizin

Notizen: Intermediate subviral particles (ISVP) derived from reovirus represent a simple model system for the switch-on of transcriptase function. In such particles the endogenous transcriptase is present in a switched-off form, one step removed from the switched-on state. Switch-on of transcriptase function is an active process in this system and can be triggered by K+ ions. A variety of agents which affect gene expression in cells were tested for an effect on switch-on in ISVP. Marked effects on switch-on in ISVP were observed with a diverse group of test agents, including DMSO and other solvents, BUdR, TdR, caffeine, theophylline, and temperature. The correlation in response between ISVP and cells suggests that the ISVP system may be useful as a model for studying the biochemical mechanisms underlying the perturbative effects of such agents on gene expression in cells.

Zusätzliches Material: 14 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/jcp.1041120104

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Bubble formation in animals. I. Physical factorsThis work has been aided since July 1, 1942, by grants from the Committee on Aviation Medicine of the National Research Council carried out under contract recommended by the Committee on Medical Reseach between the Office of Scientific Research and Development and Princeton University. (1944)

Harvey, E. Newton ; Barnes, D. K. ; McElroy, W. D. ; [weitere]

Philadelphia : Wiley-Blackwell

Journal of Cellular and Comparative Physiology 24 (1944), S. 1-22

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ISSN: 0095-9898

Schlagwort(e): Life and Medical Sciences ; Cell & Developmental Biology

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Biologie , Medizin

Zusätzliches Material: 4 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/jcp.1030240102

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Bubble formation in animals. II. Gas nuclei and their distribution in blood and tissuesThis work has been aided since July 1, 1942, by grants from the Committee on Aviation Medicine of the National Research Council carried out under contract recommended by the Commitee on Medical Reseach between the Office of Scientific Research and Development and Princeton University. Reference will not be made to progress reports or other literature of the Committee on Aviation Medicine. (1944)

Harvey, E. Newton ; Whiteley, A. H. ; McElroy, W. D. ; [weitere]

Philadelphia : Wiley-Blackwell

Journal of Cellular and Comparative Physiology 24 (1944), S. 23-34

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ISSN: 0095-9898

Schlagwort(e): Life and Medical Sciences ; Cell & Developmental Biology

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Biologie , Medizin

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/jcp.1030240103

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8

Digitale Medien

19F NMR of nitroso rubber copolymer (1968)

Lawson, D. D. ; Ingham, J. D.

New York : Wiley-Blackwell

Journal of Polymer Science Part B: Polymer Letters 6 (1968), S. 181-183

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ISSN: 0449-2986

Schlagwort(e): Chemistry ; Polymer and Materials Science

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Zusätzliches Material: 2 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/pol.1968.110060305

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9

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2,2',6,6'-Tetraethoxycarbonyl-4,4'-bithiapyranylidene (1982)

Darocha, B. F. ; Titus, D. D. ; Sandman, D. J. ; [weitere]

International Union of Crystallography

In: Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials. 1982; 38(8): 2267-2269. Published 1982 Aug 15. doi: 10.1107/s0567740882008504.

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Publikationsdatum: 1982-08-15

Print ISSN: 0567-7408

Digitale ISSN: 1600-8650

Thema: Chemie und Pharmazie , Geologie und Paläontologie , Physik

Publiziert von International Union of Crystallography

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10

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Performance of a UA1 Hadron Calorimeter Prototype (1982)

Corden, M J ; Dowell, J D ; Edwards, M ; [weitere]

Institute of Physics

In: Physica Scripta. 1982; 25(1A): 11-14. Published 1982 Jan 01. doi: 10.1088/0031-8949/25/1a/002.

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Publikationsdatum: 1982-01-01

Print ISSN: 0031-8949

Digitale ISSN: 1402-4896

Thema: Physik

Publiziert von Institute of Physics

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