1,721,861 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
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
La partecipazione italiana alla missione ISAF: inizia una nuova era nella gestione delle operazioni militari all’estero?
Selenium a cure for autoimmune thyroiditis?
Autoimmune thyroiditis (AT) is a disease whose incidence has increased dramatically over the past few decades. In iodine
sufficient areas, this pathological condition affects up to 5% of the general population. The higher incidence of AT observed
in areas of the world with low-selenium (Se) soils apperas to be the consequence of a reduced activity of the intracellular Sedependent
glutathione peroxidase activity. Se is involved, through selenoproteins, in the regulation of intracellular
antioxidant, redox and anti-inflammatory processes. As a component of selenoproteins, Se exerts various structural and
enzymatic functions. A low Se/high fat diet can cause selenoprotein changes and promote the expression of proinflammatory
factors. In particular, it has been well recognized as an antioxidant and trace element catalyst essential in the
production of thyroid hormone. Selenium is important for the functioning of the immune system. The recommended daily
dose for adults of 55 μ
Parassitolosi negli ovini e caprini
Epidemiologia delle parassitosi riscontrate negli ovini e dei caprin
Variations on the Author
“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
Probiotics in children
Probiotics, a word of Greek origin composed of “pro” (promoting) and “biotic "(life), have been defined by the Food and Agriculture Organization of the United Nations (FAO) as “live microorganisms, which, when administered in adequate amounts, confer a health benefit on the host." More than 500 different types of bacteria reside in the human digestive system. In recent years, the study of intestinal microbiota and therefore the use of probiotics have been extensively studied in promoting health, as well as in treating several diseases and not solely regarding the gastrointestinal system. This book summarizes the more recent knowledge about intestinal microbiota, its pathological correlations and the use of probiotics in children for the maintenance, recovery, and strengthening of healthy strains at the expense of bad ones
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