1,720,957 research outputs found
Fat mass and vascular health in overweight/obese children
No full textBACKGROUND AND AIM: Childhood obesity is one of the most serious public health challenges of the 21st century. Body mass index (BMI), the most widely used marker of body fatness, has serious limitations, particularly in children, since it does not accurately discriminate between lean and fat mass. Aim of our study was to investigate if the estimate of fat mass, as derived by a new prediction model, was associated with carotid intima media thickness (IMT) and the cross-sectional area of the intima media complex (CSA-IMC) in overweight or obese children.METHODS AND RESULTS: As many as 375 overweight/obese Italian children, 54.7% males, aged 5-15 years, admitted to a tertiary care hospital, were consecutively enrolled in a study on cardiovascular markers of atherosclerosis. All children underwent an ultrasound carotid examination. Mean weight was 62.2±20.8Kg and fat-mass was 26.2±10.7Kg. Multiple regression analyses showed a significant association of fat mass with carotid IMT (beta 0.156, p 0.01) and CSA-IMC (beta 0.216, p<0.001); these associations remained significant after controlling for the main cardiovascular risk factors (age, sex, blood pressure, HOMA-index, triglycerides, LDL-cholesterol, HDL-cholesterol, birth weight and high-sensitivity C-reactive protein).CONCLUSION: Fat mass calculated with the new formula is independently associated with subclinical atherosclerosis in overweight/obese children
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
Effetti dell'intervento nutrizionale sui parametri di composizione corporea e metabolici in donne con CA mammario: Trial clinico randomizzato
Full text linkIl carcinoma (CA) mammario rappresenta la neoplasia maggiormente diagnosticata nel mondo, tra la popolazione femminile. Oltre l’età e il sesso femminile, numerosi altri sono i fattori di rischio associati al CA mammario tra i quali la condizione di sovrappeso o obesità e fattori nutrizionali. In questo background, il protocollo sperimentale ha avuto come obiettivo la valutazione dell’effetto di un trattamento nutrizionale “intensivo” (braccio A) rispetto a quello “standard” (braccio B) nel monitoraggio delle pazienti con CA mammario deputate a terapia neo-adiuvante, sul peso corporeo, composizione corporea e parametri metabolici dopo sei mesi e dopo un anno.Tutte le pazienti, indipendentemente dal braccio di randomizzazione, alla visita baseline, ricevevano un piano dietetico isocalorico, sulla base del dispendio energetico a riposo (REE) misurato con la calorimetria indiretta e corretto per i livelli di attività fisica, in accordo con le linee guida del Word Cancer Research Found (WCRF) e controlli relativi alla composizione corporea e funzionalità muscolare. La differenza tra i due bracci di studio era nella frequenza dei controlli nutrizionali: braccio A, riceveva controlli mensili mentre braccio B controlli semestrali. Sono state studiate alla visita baseline 122 pazienti. Esse presentavano un’età compresa tra i 28 e i 78 anni, un peso corporeo compreso tra i 46 kg e gli 85 kg, e un IMC compreso tra i 18.7 e i 30 kg/m2; braccio A appartenevano n.58 (47.5%) pazienti mentre al braccio B n.64 (52.5%). Le variazioni tra la visita basale e dopo sei mesi, del peso corporeo, IMC, rapporto WHR, composizione corporea, HGS e REE sono state analizzate su 72 pazienti. Nel braccio B, si rileva un incremento, seppur non significativo del peso corporeo, pari a (+ 805 gr) e anche del IMC che varia da 24.7 kg/m2a 25 kg/m2mentre, indipendentemente dall’incremento di peso corporeo il WHR tende a ridursi e anche in modo significativo (p<0.028). Relativamente alla composizione corporea, si registra un leggero incremento sia della FFM (+551 gr) che della FM (+ 253 gr) e l’angolo di fase si riduce da 5.6 ± 0.5 gradi a 5.2 ± 0.5 gradi (p<0.000). Anche il valore dell’HGS in modo significativo, registrando una riduzione da 19.5 ± 4.7 kg a 17.8 ± 4.7 kg in media (p<0.05). Nel braccio A, le pazienti mantengono costati i valori della FFM, registrando una riduzione della percentuale di FM dal 31% al 29.8%.Grazie ai programmi di sensibilizzazione volti a far emergere l’importanza del corretto stile di vita, inteso come corrette abitudini alimentari, in accordo con il WCRF, e la regolare attività fisica, i risultati hanno evidenziato come in particolar modo, nel braccio A, aumenti l’aderenza alla dieta mediterranea e i livelli di attività fisica non hanno subito peggioramenti
Dispelling 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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