1,721,081 research outputs found
Marostica: profilo istituzionale di un centro urbano della Serenissima
No full textcon introduzione di POVOLO C., I centri minori della Terraferma veneta, pp. 19-39
Introduzione
No full textIntroduction to a book which gathers some essays on Trissino kinship and the archives of the family preserved in the Bertoliana library in Vicenza
Introduzione
No full textIntroduction to a book which gathers some essays on Trissino kinship and the archives of the family preserved in the Bertoliana library in Vicenza
Introduzione
No full textIntroduction to a book which gathers some essays on Trissino kinship and the archives of the family preserved in the Bertoliana library in Vicenza
Moringa oleifera Lam.: A Rich Source of Phytoactives for the Health of Human Being
No full textThis chapter aims at providing an update on the multiple uses of the extracts of one of the richest and promising natural sources ever considered in the field of chemistry of natural products: Moringa oleifera Lam. The first part of this review will supply a full description of the phytochemicals that are present in organs of the plant and may contribute to the health of human beings. A special focus will be placed on its glucosinolates and their derivative products, ITCs. The latter are increasingly catching the attention of researchers because they were found to be active against a wide range of human diseases, including cancer. Polyphenols and nutrients of M. oleifera also will be discussed. The purpose is to supply, where available, the techniques of extraction and/or isolation and characterization of these phytochemicals. Furthermore, the techniques available for their quantitative analysis will be analyzed, and the biological, pharmaceutical, nutraceutical, and cosmetic properties attributed to each chemical class of phytochemicals will be discussed. The second part will focus on a particular and traditional application of this plant that dates back to ancient times. A detailed update will be given on the use of M. oleifera extracts to promote plant growth and stimulate plant adaptation to environmental stress. Although this traditional use is well documented in research papers from the late 20th century, only more recent studies shed light on the molecular profile that is thought to be responsible for the observed effect. We will provide details, where available, on the formulation and the use of the extracts for stimulating plant growth and, more importantly, we will analyze the content of such preparations in terms of the content of active species, such as the phytohormones. The several chemical classes of phytohormones that are reported to be present in these extracts will be exposed and the analytical techniques employed for their quantification will be discussed. Moreover, a brief update on the use of such extracts for animal feeding will be provided. Thus, this review is intended to be of interest for the medicinal and organic chemist, together with the general expert in the field of natural compounds. To lay the basis for the preparation of the review, we will undertake a detailed literature search using the main scientific databases (PubMed, Scopus, Reaxys, and SciFinder) for collecting and organizing the sources, considering both recent patent and scientific literature data
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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