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1

Digitale Medien

Multiple forms of SS → DS RNA polymerase activity in reovirus-infected cells (1974)

ZWEERINK, HANS J.

[s.l.] : Nature Publishing Group

Nature 247 (1974), S. 313-315

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] To gain insight into the mechanism by which the 10 DS RNA segments are assembled and encapsidated during viral morphogenesis we are studying the properties of the enzymes responsible for the synthesis of DS RNA in infected cells. Recently we described the isolation of a SS RNA-de-pendent DS RNA ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/247313a0

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2

Digitale Medien

Healthy carriers of hepatitis B (1974)

Zuckerman, Arie J.

[s.l.] : Nature Publishing Group

Nature 250 (1974), S. 101-102

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] NUMEROUS seroepidemiological surveys on selected groups have shown that the prevalence of hepatitis B antigen, a marker of infection with hepatitis B virus, in apparently healthy persons in Western Europe and North America is 0.1–0.6% by comparison with 5–20% in tropical Africa, South East Asia and ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/250101c0

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3

Digitale Medien

Degradation of p , p ′-DDT in Reducing Environments (1974)

ZORO, J. A. ; HUNTER, JUDITH M. ; EGLINTON, G. ; [weitere]

[s.l.] : Nature Publishing Group

Nature 247 (1974), S. 235-237

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] We have recently re-examined the environmental degradation of DDT and have measured DDD/DDT ratios after exposing DDT to a variety of conditions: sterile and non-sterile; oxidising and reducing; and appropriate combinations. The systems examined were: (1) sewage sludge, (2) baker's yeast, (3) iron ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/247235a0

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4

Digitale Medien

Phototaxis and Thermotaxis in Some Species of Amphistegina (Foraminifera) (1974)

ZMIRI, AHARON ; KAHAN, DAVID ; HOCHSTEIN, SHAUL ; [weitere]

Oxford, UK : Blackwell Publishing Ltd

The @journal of eukaryotic microbiology 21 (1974), S. 0

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ISSN: 1550-7408

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Biologie

Notizen: Positive phototaxis was demonstrated in specimens of Amphistegina radiata within the range of photonic fluxes of 1011 to 1015 photons × cm-2× sec-1. No response was found at lower intensities. Amphistegina radiata has a Dartnall nomogram-shaped action spectrum with a peak at ∼500 nm. In addition, A. radiata and A. madagascariensis, which had been maintained at 18 C, moved toward higher temperatures in a horizontal temperature gradient in total darkness. Amphistegina radiata and A. madagascariensis did not move at temperatures ≤ 12 C and ≤ 16 C respectively. An equal number of specimens moved toward the higher and lower temperatures in the gradient when A. radiata was placed at ∼29 C and A. madagascariensis at ∼22 C. The roles of light and temperature in the distribution of the genus Amphistegina in nature are discussed.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1550-7408.1974.tb03626.x

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5

Digitale Medien

Immunological surveillance against altered self components by sensitised T lymphocytes in lymphocytes choriomeningitis (1974)

ZINKERNAGEL, ROLF M. ; DOHERTY, PETER C.

[s.l.] : Nature Publishing Group

Nature 251 (1974), S. 547-548

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Operationally, this restriction may reflect one of two quite distinct mechanisms1,2. First, H-2 compatibility is essential for sufficiently close association3 between lymphocyte and target cell for lysis to occur. This intimacy model implies either that the H-2 gene complex specifies a product, or ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/251547a0

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6

Digitale Medien

Restriction of in vitro T cell-mediated cytotoxicity in lymphocytic choriomeningitis within a syngeneic or semiallogeneic system (1974)

ZINKERNAGEL, R. M. ; DOHERTY, P. C.

[s.l.] : Nature Publishing Group

Nature 248 (1974), S. 701-702

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Both the cytotoxic assay used and the characteristics of the cells involved have been described previously6"8. Briefly, monolayers of C3H mouse fibroblasts (L cells) are grown in plastic tissue culture trays, infected with a high multiplicity of the WE3 strain of LCM virus and the cells labelled ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/248701a0

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7

Digitale Medien

Restriction by H-2 gene complex of transfer of cell-mediated immunity to Listeria monocytogenes (1974)

ZINKERNAGEL, R. M.

[s.l.] : Nature Publishing Group

Nature 251 (1974), S. 230-233

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Can this restriction be applied more generally as an index of T cell involvement in immunological phenomena? This possibility can be further investigated in another model where T cells are known to play a central part; adoptive transfer of immunity to Listeria monocytogenes infection in mice6?8. ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/251230a0

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8

Digitale Medien

VEBLEN VS. COMMONS: A COMPARATIVE EVALUATION (1974)

Zingler, Ervin K.

Oxford, UK : Blackwell Publishing Ltd

Kyklos 27 (1974), S. 0

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ISSN: 1467-6435

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Sociologie , Wirtschaftswissenschaften

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1467-6435.1974.tb01909.x

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9

Digitale Medien

DIE LAST DES UMWELTSCHUTZES: ÜBERLEGUNGEN ZUM KONZEPT DER ≪VOLKSWIRTSGHAFTLIGHEN KOSTEN≫ DES SAGHVERSTÄNDIGENRATES FÜR UMWELTFRAGEN (1974)

Zimmermann, Klaus

Oxford, UK : Blackwell Publishing Ltd

Kyklos 27 (1974), S. 0

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ISSN: 1467-6435

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Sociologie , Wirtschaftswissenschaften

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1467-6435.1974.tb01923.x

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10

Digitale Medien

Dynamics and function of vitamin A compounds in rat retina after a small bleach of rhodopsin (1974)

ZIMMERMAN, W. F. ; YOST, M. T. ; DAEMEN, F. J. M.

[s.l.] : Nature Publishing Group

Nature 250 (1974), S. 66-67

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] This understanding of the vertebrate visual cycle is based upon experiments in which high light intensities were used, and most or all of the rhodospin was bleached. It is not known whether release, reduction and esterification of the chromophore occur after a smaller fraction of rhodopsin is ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/250066a0

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