1,720,958 research outputs found
Esposizione a basse dosi di piombo inorganico e pressione arteriosa negli istruttori di tiro della Polizia di Stato italiana
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Stress-related temporary hearing loss. Evaluation of bio-humoral parameters: forensic and criminological applications
No full textThe body-alarm reaction results from the activation of hypothalamic–pituitary–adrenal axis, which can lead to physio-psychological
phenomena such as an exclusion ⁄ occlusion of the sense of hearing. One hypothesis to explain this alteration consists in a hydromechanical dysfunction
of the internal ear attributable to antidiuretic hormone. In this study, we evaluated the perception of acoustic stimuli administered in stressful conditions
in 14 phobic patients and in 20 healthy subjects, in order to assess the influence of stress on perceiving capabilities. We also measured the
concentration of salivary cortisol and IL-1b and neurovegetative parameters to objectivise and quantify the physiological reactions. Our results show
a worse perception of the frequencies of the human voice under stress; these findings could have a dual value: in the legal field, concerning criminal
liability, and on the operative context, regarding the efficiency of verbal communication among law enforcement officers in situations inducing
intense emotional stress
Stress-related temporary hearing loss-evaluation of bio-humoral parameters: Forensic and criminological applications.
No full textTemporary hearing threshold shift in policemen after firearm training
No full textTemporary hearing threshold shift in policemen after firearm training". Background: The paper involves exposure to noise of the State Police officers connected with the use of firearms. The noise generated by these weapons is of short duration and high intensity. Methods: The research was carried out during the sessions of firearm training of State Police officers to assess exposure to noise. Results: The values of the various investigations, both audiometric and phonometric, carried out made it possible to demonstrate a significant exposure and a temporary increase in the threshold, above the frequency of 6000 Hz. Conclusion: Even taking account of the abatement from use of headphones, an exposure was demonstrated that was above the statutory limits, as was confirmed by the temporary hearing threshold shift
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
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