1,721,023 research outputs found

    L'ATTIVITÀ FISICA IN GRAVIDANZA: RISULTATI PRELIMINARI DI UN’INDAGINE DI PREVALENZA SU UN CAMPIONE DI DONNE DELLA PROVINCIA DI MODENA.

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    INTRODUZIONE: Praticare attività fisica in gravidanza contribuisce al mantenimento della salute della donna e del nascituro: l’OMS consiglia di svolgere esercizio fisico regolare durante tutta la gestazione. Spesso tuttavia, specie nell’ultimo trimestre, le donne tendono a ridurre o cessare l’attività fisica, rinunciando ai benefici apportati dal movimento e andando incontro ad un possibile eccessivo aumento ponderale. Lo scopo dello studio è valutare le abitudini delle gestanti, analizzando diversi aspetti dell’attività fisica svolta prima e durante la gravidanza (tipo, frequenza, durata) ed i fattori comportamentali ad essi potenzialmente correlati. MATERIALI E METODI: Si tratta di uno studio epidemiologico osservazionale trasversale in corso presso l’U.O. di Ostetricia e Ginecologia dell’Azienda Ospedaliero-Universitaria Policlinico di Modena. Attualmente sono state reclutate, su base volontaria e previo rilascio del consenso informato, 211 puerpere (età media: 33 anni, nazionalità Italiana: 81%), le informazioni sono state raccolte tramite questionario appositamente predisposto. RISULTATI: Delle 211 donne arruolate, 103 (48.8%) hanno dichiarato di aver svolto esercizio regolare prima della gravidanza; le attività più rappresentate sono risultate le camminate (14,2%) e la ginnastica (13,3%). Durante la gravidanza, si osserva un lieve calo della prevalenza (che si attesta al 46,4%) di donne che praticano esercizio fisico. La camminata si conferma l’attività più praticata: il 22,7% delle donne dichiara di averla svolta nel I trimestre, il 26% nel II trimestre e il 24,2% nel III trimestre. Tuttavia, solo il 16,6% delle donne ha svolto attività fisica per un tempo complessivo ≥150 minuti a settimana, valore indicato come ottimale dall’OMS. La sedentarietà risulta più diffusa in donne con età ≥40 anni, con basso livello di istruzione, di nazionalità extraeuropea, tra le fumatrici e le donne ipertese. CONCLUSIONI: La gravidanza può rappresentare il momento ideale per iniziare ad adottare uno stile di vita sano. Tuttavia, sebbene in aumento rispetto al passato, un numero ancora limitato di donne in gravidanza pratica regolarmente attività fisica. E’ auspicabile quindi che efficaci interventi di sanità pubblica volti a promuovere l’esercizio fisico possano essere identificati, predisposti e implementati anche per questo specifico gruppo di donne

    Headspace chromatographic analysis for determining low levels of chloroform in human plasma

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    Headspace chromatographic analysis for determining low levels of chloroform in human plasm

    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

    Parental internalizing psychopathology and ptsd in offspring after the 2012 earthquake in italy

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    Post-traumatic stress disorder (PTSD) is common in youths after earthquakes, with parental psychopathology among the most significant predictors. This study investigated the contribution and the interactional effects of parental internalizing psychopathology, the severity of exposure to the earthquake, and past traumatic events to predict PTSD in offspring, also testing the reverse pattern. Two years after the 2012 earthquake in Italy, 843 children and adolescents (9–15 years) living in two differently affected areas were administered a questionnaire on traumatic exposure and the UCLA PTSD Reaction Index. Anxiety, depression, and somatization were assessed in 1162 parents through the SCL-90-R. General linear model showed that, for offspring in the high-impact area, predictors of PTSD were earthquake exposure, past trauma, and parental internalizing symptoms, taken individually. An interaction between earthquake exposure and parental depression or anxiety (not somatization) was also found. In the low-impact area, youth PTSD was only predicted by earthquake exposure. The reverse pattern was significant, with parental psychopathology explained by offspring PTSD. Overall, findings support the association between parental and offspring psychopathology after natural disasters, emphasizing the importance of environmental factors in this relationship. Although further research is needed, these results should be carefully considered when developing mental health interventions
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