1,721,199 research outputs found

    Explicit and implicit attitudes toward gay and lesbian scenarios and traditional gender roles: sexual orientation, sexual stigma and perceived masculinity/femininity

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    The main purpose of the current doctoral dissertation was to contribute to the literature about negative attitudes toward gay and lesbian individuals, within the sexual minorities themselves.Considering how strong the traditional gender roles is related to sexual stigma and internalized sexual stigma in heterosexual and sexual minorities respectively, we wanted to deepen their interaction role on peoples’ negative attitudes toward gay and lesbian individuals, who are not conform to stereotypical gender roles.The first study of this dissertation will investigate the role of participants’ sexual orientation and perceived masculinity on negative attitudes toward two gay man scenarios. Specifically, we will compare explicit negative affect toward stereotypical feminine and masculine gay man scenarios in an Italian sample of heterosexual and gay men. This research will extend previous literature, exploring gay men’s attitudes to feminine and masculine gay scenarios, also focusing on the impact of their internalized sexual stigma. The main purpose of the second study of this doctoral thesis will be to extend the investigation on negative attitudes both in lesbian participants and toward stereotypical masculine and feminine lesbian scenarios. This research will examine the differences between Italian gay men and lesbian participants in their negative attitudes toward either gay or lesbian scenarios, described with either stereotypical masculine or feminine characteristics. The third study will focus exclusively on Italian lesbian participants. This is the first study to explore negative attitude toward gay and lesbian scenarios, by investigating lesbian participants’ internalized sexual stigma and their adherence or violation of traditional feminine role. The scenarios will be the same of the second study and represent either a gay man or a lesbian woman conforming to either masculine or feminine traditional gender roles. The last study of this doctoral dissertation will describe the effects of heterosexual and gay men’s manipulation of masculinity threat, their sexual stigma and their adherence to traditional masculinity on the implicit attitudes toward feminine and masculine gay men. First of all, the description of the several construction phases of this instrument and the two pilot studies will be illustrated. Afterwards, the description of the main study will follow

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

    Sox9 expression in canine epithelial skin tumors

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    Sox9 is a master regulatory gene involved in developmental processes, stem cells maintenance and tumorigenesis. This gene is expressed in healthy skin but even in several skin neoplasms, where its expression patterns often resembles those of the developing hair follicle. In this study, samples from eleven different types of canine skin neoplasms (squamous papilloma, squamous cell carcinoma, infundibular keratinizing acanthoma, inferior tricholemmoma, isthmic tricholemmoma, trichoblastoma, trichoepitelioma, malignant trichoepitelioma, pilomatricoma, subungual keratoacanthoma, subungual squamous cell carcinoma) were immunohistochemically stained and evaluated for Sox9 with the aim to correlate tumor phenotype with molecular characteristics that may help to better define tumor development, contribute to its diagnosis and clinical management. Keratoacanthoma excluded, all the skin neoplasms examined showed a variable positivity to Sox9, especially in the basal layers, but with major intensity in neoplasms developing from the bulge region of the hair follicle, as trichoblastoma. According to our results, Sox9 could be employed as a stem cell marker to better assess the role of stem cells in canine epidermal and follicular tumors.</p

    On the use of raingauges data to validate satellite precipitation products

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    In the last decade satellite precipitation estimation techniques have reached significant improvement in quantitative description of rainfall intensity and distribution over a wide range of spatial and temporal scales, and even higher performances are expected from the full exploitation of Global Precipitation Measurement Mission. Parallel to the development of new techniques the need of accurate and reliable ground reference fields is also growing, for both calibrating and validating satellite algorithms. The development of super sites, where a complete set of instruments for the measurement of precipitation characteristics and ancillary data are operated, can provide accurate data over the site area for algorithm calibration and physical validation. On the other side, the is still interest in comparing satellite estimates with data from ground networks of conventional instruments such as weather radars and raingauges, to operationally validate regional or global precipitation products. The comparison between satellite instantaneous areal estimate with the raingauge point-like time-cumulated measure poses different problems in the interpretation of the results of the matching. In particular, it is difficult to decide to what extent the difference between satellite estimate and ground measure is due to the real error and not to the different sampling of the two instruments. In this work we address some aspects of the procedures commonly used for matching raingauge and satellite data, considering the use of different techniques to interpolate raingauge data and different approaches for data upscaling and downscaling. We make use of data from regional scale high resolution (1-minute sampling) raingauge networks to compute a number of commonly used skill indicators and to evaluate their sensitivity to the different matching strategies. The impact of parallax error in matching estimated and measured rain fields is also discussed

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

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