1,721,034 research outputs found
Storie e linguaggi
No full textCollana di saggistica, di testi editi criticamente e commentati, di manuali universitari. Al centro degli interessi della collana le scienze umane e specialmente la storia e le filologie antiche e moderne.
La collana ha un nutrito comitato scientifico (A. Andrisano, F. Rico, B. Richardson, M. Tarchi ecc.) ed è peer-reviewe
Storie e linguaggi
No full textCollana peer-reviewed di storia, filologia, antropologia con ampio comitato scientifico internazionale diretta da F. Cardini e Paolo Trovat
Seeing and feeling for self and other: proprioceptive spatial location determines multisensory enhancement of touch.
No full textWe have investigated the relation between visuo-tactile interactions and the self-other distinction. In the visual enhancement of touch (VET) effect, non-informative vision of one's own hand improves tactile spatial perception. Previous studies suggested that looking at another person's hand could also enhance tactile perception, but did not systematically investigate the basis of this effect. In experiment 1 we manipulated the spatial location where one's own or another person's hand was seen. Viewing one's own hand enhanced tactile orientation discrimination relative to viewing a neutral object, but only when the visual image of the hand was spatially aligned with the actual location of the participant's unseen hand, as signaled by proprioception. In contrast, viewing another person's hand produced enhanced tactile perception irrespective of spatial location. In experiment 2, we used a multisensory stimulation technique, known as visual remapping of touch (VRT), to reduce the spatial misalignment between the visual and proprioceptive locations of the hand. Participants saw an image of their own hand being touched at the same time as the tactile stimulation, which reduces perceived misalignment. This spatial adaptation procedure caused the VET effect to return. Our results suggest that multisensory modulation of touch depends on a representation of one's own body that is fundamentally spatial in nature. In contrast, representation of others is free from this spatial constrain
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
AIDS: knowledge, attitudes and sex behavior of young people attending AIED family planning health services [AIDS: conoscenze, attitudini e comportamenti sessuali di giovani utenti dei consultori familiari AIED.]
No full textA research group of the G. Sanarelli Institute of La Sapienza University, Rome, Italy, conducted a survey on the knowledge, attitudes, and sexual behavior of young people at 14 family planning counseling centers of the Italian Association of Demographic Education (AIED). Data were collected by means of an anonymous, self-administered questionnaire containing 70 questions during the 12-month period from March 1, 1995 to February 29, 1996. Respondents were 19-24 years old. The purpose was to gain information about AIDS-related risk behavior. A total of 1085 questionnaires were collected representing the views of 978 women (90.1%) and 107 men (9.9%) with an average age of 21.9 years for the women and 21.7 years for the men. For 84% of the females and 78% of males, the source of information about AIDS was television; for 61% of males and 59% of females it was daily newspapers; and only 33% of men and 40% of women obtained such information from school. The average score of accurate knowledge about the transmission of HIV was 78% vs. 75.6% of a national sample. The respondents were more sexually active than the subjects of the national sample. 96% of males and 91% of females had experienced sexual intercourse; the average age of sexual debut was 17.7 years for males and 18.0 years for females, with an average of 4.2 partners for males and 3.0 partners for females. 6% of males had sex with prostitutes (16% in the national sample), while some women had had bisexuals (4%) or drug addicts (6.5%) as partners. The practice of anal sex was above the national average (29% for males and 24% for females). 73% of males and 79% of females always used condoms with casual sexual partners, but only 20% of males and 15% of females used condoms with steady partners
Emotional Modulation of Visual Remapping of Touch.
No full textThe perception of tactile stimuli on the face is modulated if subjects concurrently observe a face being touched; this effect is termed "visual remapping of touch" or the VRT effect. Given the high social value of this mechanism, we investigated whether it might be modulated by specific key information processed in face-to-face interactions: facial emotional expression. In two separate experiments, participants received tactile stimuli, near the perceptual threshold, either on their right, left, or both cheeks. Concurrently, they watched several blocks of movies depicting a face with a neutral, happy, or fearful expression that was touched or just approached by human fingers (Experiment 1). Participants were asked to distinguish between unilateral and bilateral felt tactile stimulation. Tactile perception was enhanced when viewing touch toward a fearful face compared with viewing touch toward the other two expressions. In order to test whether this result can be generalized to other negative emotions or whether it is a fear-specific effect, we ran a second experiment, where participants watched movies of faces-touched or approached by fingers-with either a fearful or an angry expression (Experiment 2). In line with the first experiment, tactile perception was enhanced when subjects viewed touch toward a fearful face and not toward an angry face. Results of the present experiments are interpreted in light of different mechanisms underlying different emotions recognition, with a specific involvement of the somatosensory system when viewing a fearful expression and a resulting fear-specific modulation of the VRT effect
AIDS: knowledge, attitudes and sex behavior of young people attending AIED family planning health services.
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