1,721,151 research outputs found
Il pregiudizio omofobico come forma di normatività sociale? Analisi integrata e multilivello degli atteggiamenti nei confronti di gay e lesbiche in ambito scolastico
No full textThe empirical research presented in the article is the realization of a recent project of Sapienza University of Rome, which involved ten Roman schools (five academic and five technical high schools), including in each of them one section of the five year scholastic cycle, for a total sample of 920 students. The aim was to identify contextual, relational and individual factors that activate homophobic prejudice during adolescence. To reduce the atomism and sociological micro-reductionism of survey research, usually used in the study of prejudice, we made use of a methodological approach defined as multilevel and integrated. Beside the role of individual properties (micro level), we examined the combined influence of the processes of collective construction of otherness (macro level) and the properties concerning contexts of socialization and forms of friendship established among adolescents within the schools (meso-social level). The need to link these three levels required the integration of research approaches usually considered as alternatives: sample survey, sociometry, qualitative strategies.The empirical research presented in the article is the realization of a recent project of Sapienza University of Rome, which involved ten Roman schools (five academic and five technical high schools), including in each of them one section of the five year scholastic cycle, for a total sample of 920 students. The aim was to identify contextual, relational and individual factors that activate homophobic prejudice during adolescence. To reduce the atomism and sociological micro-reductionism of survey research, usually used in the study of prejudice, we made use of a methodological approach defined as multilevel and integrated. Beside the role of individual properties (micro level), we examined the combined influence of the processes of collective construction of otherness (macro level) and the properties concerning contexts of socialization and forms of friendship established among adolescents within the schools (meso-social level). The need to link these three levels required the inte
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
Rec. a A. Taddei, Louis Gernet e le tecniche del diritto ateniese. Con il testo delle Études sur la technique du droit athénien à l’époque classique (Pisa 2001).
No full textRecensione alla monografia di A. Taddei su un inedito di Louis Gerne
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
Foxs and Ets in the transcriptional regulation of endothelial cell differentiation and angiogenesis
No full textDuring tumour growth the surrounding vasculature forms new vessels which penetrate into the stroma and bring oxygen and nutrients to the proliferating cancer cells. The ability to control and reduce this phenomenon may have important therapeutic implications. Angiogenesis is a complex event which requires endothelial cell sprouting, lumen formation, tubulogenesis and is regulated by the coordinated action of different transcription factors. Studies on promoters of endothelial cell-specific genes or gene inactivation experiments reveal the extreme complexity of the system. Many transcription factors are implicated in vascular development and the majority are not endothelial-specific. Their interaction leads to endothelial cell differentiation and acquisition of arterial, venous and lymphatic properties. Two large families of transcription factors, Foxs and Ets, play a major role in these events. They participate in both embryonic and adult angiogenesis. The FoxO subgroup regulates the correct organization of the vascular system, controlling excessive endothelial growth and inducing apoptosis both in embryos and adult mice. Ets factors participate in early endothelial differentiation and angiogenesis. Many members of this family are expressed very early in the developing vasculature and Ets consensus binding domains are present in essentially all endothelial cell-specific gene promoters. In this review we discuss the overall transcriptional regulation of vascular development with a particular focus on some specific members of these two families considered important in the formation and maintenance of the vascular network
Alteration patterns of marble and stones from different environment exposures: a systematic approach from buildings and museum collections in Genoa (Italy).
No full textAlteration patterns of marble under different environmental exposures: a systematic approach from the Staglieno Monumental Cemetery and Museum Collections in Genoa (Italy).
No full textDispelling 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
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