1,720,960 research outputs found
Predictors of HIV-protection behaviour in HIV-positive men who have sex with casual male partners: A test of the explanatory power of an extended Information-Motivation-Behavioural Skills model
No full textThis prospective study applies an extended Information-Motivation- Behavioural Skills (IMB) model to establish predictors of HIV-protection behaviour among HIV-positive men who have sex with men (MSM) during sex with casual partners. Data have been collected from anonymous, self-administered questionnaires and analysed by using descriptive and backward elimination regression analyses. In a sample of 165 HIV-positive MSM, 82 participants between the ages of 23 and 78 (M=46.4, SD=9.0) had sex with casual partners during the three-month period under investigation. About 62% (n=51) have always used a condom when having sex with casual partners. From the original IMB model, only subjective norm predicted condom use. More important predictors that increased condom use were low consumption of psychotropics, high satisfaction with sexuality, numerous changes in sexual behaviour after diagnosis, low social support from friends, alcohol use before sex and habitualised condom use with casual partner(s). The explanatory power of the calculated regression model was 49% (p0.001). The study reveals the importance of personal and social resources and of routines for condom use, and provides information for the research-based conceptualisation of prevention offers addressing especially people living with HIV (positive prevention). © 2011 Taylor & Francis
Patients' satisfaction with sexual and reproductive health services delivered in HIV clinics across European regions.
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Mirror, mirror on the wall: the face of HIV-positive women in Europe today
No full textSexual and reproductive health (SRH) and rights are important components of quality of life. This cross-sectional study describes HIV-positive women's SRH aspirations and needs and the predictive value of selected SRH factors on condom use with steady sexual partners. Data were collected in a European multi-centre study in 17 HIV centres in 14 European countries by a standardised anonymous self-administered questionnaire. Descriptive statistics and hierarchical regression analysis were carried out and qualitative data from related formative research illustrated the findings. Among 387 HIV-positive women, 57% had children and 35% had become pregnant since their HIV-diagnosis. Contraceptive needs were largely unmet: 14% had undergone a pregnancy termination. About 83% changed their sexual behaviour after HIV-diagnosis in some ways. Sixty-two percent had at least one sexual encounter with a steady partner during the past six months and 51% used condoms consistently. Significant correlations with condom use were identified for childbearing since HIV-diagnosis (r= - 0.21, p<0.01), miscarriage since HIV-diagnosis (r= - 0.24, p<0.01), the use of contraception (r=0.47, p<0.001) and changes in sexual behaviour after HIV-diagnosis (r=0.20, p<0.01). Hierarchical regression analysis controlled for education, migration background, age, undetectable viral load and partners' serostatus. The following significant predictors for condom use were established: the use of contraceptives (beta=0.33, p<0.001); miscarriage since HIV-diagnosis (beta=- 0.16, p<0.01); childbearing since HIV-diagnosis (beta =- 0.12, p<0.05); and having an HIV-positive partner (beta=- 0.13, p<0.05). For study population, consistent condom use performed a challenge. Selected SRH-issues predicted condom use. Sexual risk reduction and positive prevention should be discussed in the context of family planning and integrate SRH perspectives in routine HIV car
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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