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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of communication 51 (2001), S. 0 
    ISSN: 1460-2466
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Media Resources and Communication Sciences, Journalism
    Notes: This study attempts a new conceptualization of communication ‘sources’ by proposing a typology of sources that would apply not only to traditional media but also to new online media. Ontological rationale for the distinctions in the typology is supplemented by psychological evidence via an experiment that investigated the effects of different types of source attributions upon receivers' perception of online news content. Participants (N=48) in a 4-condition, between-participants experiment read 6 identical news stories each through an online service. Participants were told that the stories were selected by 1 of 4 sources: news editors, the computer terminal on which they were accessing the stories, other audience members (or users) of the online news service, or (using a pseudo-selection task) the individual user (self). After reading each online news story, all participants filled out a paper-and-pencil questionnaire indicating their perceptions of the story they had just read. In confirmation of the distinctions made in the typology, attribution of identical content to 4 different types of online sources was associated with significant variation in news story perception. Theoretical implications of the results as well as the typology are discussed.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    British journal of dermatology 145 (2001), S. 0 
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background Current methods for diagnosis of post kala-azar dermal leishmaniasis (PKDL) do not offer adequate sensitivity and specificity. Objectives To develop a simple and sensitive test for field diagnosis of PKDL. Methods Immunochromatographic nitrocellulose strips precoated with recombinant k39 antigen were evaluated for the detection of circulating antibodies to leishmanial k39 in PKDL sera. A drop of serum applied to the strip followed by buffer led to the development of two visible bands indicating the presence of anti-k39 IgG. Results The strip test was able to detect cases of PKDL with 91% sensitivity. The specificity of the test was evaluated using controls with other skin diseases, other common infections and healthy persons from endemic and non-endemic regions. Of 125 controls examined, all were negative on the strip test, indicating 100% specificity of the test. Conclusions The immunochromatographic nitrocellulose strips provide a non-invasive, rapid and accurate method for diagnosing PKDL.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Organometallic Chemistry 184 (1980), S. C44-C48 
    ISSN: 0022-328X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 12-0 tetradecanoyl phorbol 13-acetate (TPA), known to promote tumors in mice and also to enhance viral transformation as well as induction of viral antigens, was demonstrated to be mitogenic to peripheral blood mononuclear cells from rhesus monkeys and three species of marmosets. Even though mitogenic response varied between species and within species, the mitogenic dose response due to TPA was comparable to the response of phytohemagglutinin (PHA-P). A significant synergistic effect of PHA-P and TPA on mononuclear cells from marmosets was evident when they were used together at optimal doses. TPA also increased the efficiency ofin vitro transformation of marmoset lymphocytes by Epstein-Barr virus.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Motivation and emotion 17 (1993), S. 1-21 
    ISSN: 1573-6644
    Source: Springer Online Journal Archives 1860-2000
    Topics: Psychology
    Notes: Abstract The mediation of superior coping with physical discomfort after humorous stimulation was explored through respondents' exposure to materials varying markedly in their capacity to evoke amusement and joviality. Both male and female respondents were exposed to (a) stand-up comedy, (b) situation comedy, (c) serious drama, (d) instructional material, or (e) tragedy. Discomfort threshold for cuff pressure at the upper arm was ascertained prior to and following exposure. Cognitive and affective responses to the materials were recorded after the postexposure threshold measurement. Compared against exposure to instructional material in the control condition, and compared against pre-exposure threshold measures, exposure to either type of comedy and, unexpectedly, to tragedy significantly elevated the threshold for physical discomfort in both male and female respondents. Serious drama had no such effect. Taken together, the exposure effects on the discomfort threshold could not be attributed to amusement reactions. Nor could they be considered mediated by responses of positive hedonic quality during and after exposure. There was some indication, however, that the capacity of stimuli to evoke humorous reactions (material being deemed funny) and the absorption potential of stimuli (material being deemed captivating) were positively involved in the mediation of postexposure tolerance of physical discomfort.
    Type of Medium: Electronic Resource
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