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ALLERGIA A LATICE NEI LAVORATORI DELLA SANITA': FREQUENZA, QUANTIFICAZIONE DELL'ESPOSIZIONE, EFFICACIA DI CRITERI PER LA FORMULAZIONE DEL GIUDIZIO DI IDONEITA'
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VASCULAR EFFECTS OF NOISE
No full textThe possible vascular effects of noise were studied. A study of the carotid vessels was made with Doppler ultrasonography in two groups of subjects exposed to various intensity of noise. The following data were studied: age, blood pressure, serum cholesterol, blood glucose, smoking habits, excess weight, electrocardiographic anomalies, family history of vascular disease, connection with duration of exposure and the type of noise and with audiometric deficits, and cerebrovascular modifications after postural changes and after a stress test. The control group comprised subjects not exposed to noise. The findings confirm that noise does play a role in causing vascular modifications that can be detected early by use of Doppler ultrasonography. This technique is predictive and could be useful in screening campaigns, following the method suggested here
Occupational exposure to urban pollutants and urinary 5-hydroxy-3-indoleacetic acid
No full textAccording to the literature, various occupational and environmental stressors may cause alterations in serotonin (5-HT) turnover and in its principal metabolite, 5-hydroxy-3-indoleacetic acid (5-HIAA). The aim of this study is to evaluate whether traffic police exposed to urban pollutants and possible psycho-social stressors could be at risk of alterations in urinary 5-HIAA in 24 hours (5-HIAA[U]) compared with a control group. After the main non-occupational confounding factors were excluded, 5-HIAA(U) excretion was investigated in 140 employees of a municipal police force: 70 traffic police with outdoor activity that exposed them to urban pollutants and 70 administrative workers with indoor activity. Subjects were matched by sex, age, and length of working fife. The mean 5-HIAA(U) levels were significantly lower in traffic police than in administrative workers, both males and females (p = .025, and p = .027, respectively), matching modifications in 5-HIAA(U) levels found by other authors in studies on animals and human subjects
Occupational exposure to urban pollutants and plasma growth hormone (GH)
No full textThe aim of present study was to evaluate whether traffic policemen exposed to urban pollutants and possible psycho-social stressors are at risk of alterations on plasma growth hormone (GH) levels compared with a control group. Out of a population of 395 Municipal Police employees, the subjects with principal confounding factors were excluded from the study. The remaining traffic policemen were matched with those not exposed by sex, age, working life, and habitual consumption of alcohol; 71 traffic policemen (40 men and 31 women) with outdoor activity exposed to urban pollutants and 71 not exposed subjects (40 men and 31 women) with indoor activity were included in the study. The plasma levels of GH were significantly lower in the exposed traffic policemen compared with those not exposed (P = 0.000); similarly in male (P = 0.011) and female subjects (P = 0.000). The authors hypothesize the possibility of an effect of the specific working activity in traffic policemen on the plasma GH concentrations
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
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