1,721,257 research outputs found
S. Grilli e F. Zanotelli (a cura di). Scelte di famiglia : tendenze della parentela nella società contemporanea
No full textRecensione del volume "Scelte di famiglia : tendenze della parentela nella società contemporanea", a cura di S. Grilli e F. Zanotelli
Miscele microincapsulate di sostanze aromatizzanti e acidi organici come supplementi alimentari per il controllo dell’enterite necrotica da Clostridium perfringens in polli da carne
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A microencapsulated blend of thymol and organic acids can support broilers during a necrotic enteritis challenge with Clostridium perfringens
No full textThe Uruguay Round and international diffusion of innovation
No full textShort analysis of various channels throgh which multilateral liberalization od trade in services (TRIPs, TRIMs etc.) triggered after the Uruguay Round and the start of WTO nay induce productivity gains both in developing and developed countrie
A microencapsulated blend of botanicals can support broiler chickens during an experimental model of coccidiosis
No full textGoing 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
Pediocin A modulates intestinal microflora metabolism in swine in vitro intestinal fermentations
No full textThe aim of this study was to investigatein vitro the effects of pediocin A [a bacteriocinproduced by lactic acid bacteria (LAB) Pediococcuspentosaceus FBB61] on microbial metabolism inthe small and large intestine of pigs. Pediocin A waspartially purified by ion exchange chromatography andadded to an in vitro fermentation system. The intestinalinoculum was collected from pigs immediately afterslaughter, diluted with a buffer, and dispensed intofermentation syringes and vessels of the 2 experimentalgroups: 1) Bac+ = cecal liquor + predigested diet +pediocin A (final concentration 160 activity units/mL);2) Bac− = cecal liquor + predigested diet + partiallypurified supernatant of P. pentosaceus FBB61–2. Intestinalmicrobial growth was monitored using the cumulativegas production technique; the kinetics of fermentation,bacterial counts, VFA, ammonia, polyamines,and p-cresol production were analyzed. Pediocin A hadalmost no effects on small intestine fermentation parameters,whereas in the cecum pediocin A decreasedgas production (−16%; P < 0.05), ammonia, and VFAproduction (−52 and −21%, respectively, after 24 h;P < 0.001) compared with the control group. Significantinhibition of clostridia and LAB occurred in cecalfermentations: the Bac+ group yielded a decreasednumber of clostridia and LAB in cecal fermentations(8.19 and 7.80 cfu/mL, respectively) compared withBac− (9.32 and 8.95 cfu/mL, respectively; P < 0.001).The low clostridia counts in the pediocin-treated groupmay also explain the reduced concentration of the carcinogeniccompound p-cresol (−88%; P < 0.01). Ourresults suggest that pediocin A could be an alternativeto replace antibiotic growth promoters for the prophylaxisof enteric diseases and to improve production offarm animals.[...
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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