1,720,960 research outputs found
Eccitazione: La logica delle fantasie sessuali
No full textIl libro parla delle fantasie sessuali, spiegando la logica sottesa ad esse in ottica Control-Mastery Theor
Systems Training for Emotional Predictability and Problem Solving (STEPPS): program Efficacy and Personality Features as Predictors of Drop-out-An Italian study
No full textNDF degradability of hays measured in situ and in vitro
No full textThe NDF degradability (d(NDF)) of hays measured by an in situ method (nylon bag technique) was compared with in vitro fermentation, using the Daisy(II) incubator (Ankom(R), Tech. Co., Fairport, NY, USA). Eighteen hays were produced from mountain areas (about 700 m.s.l.) from plots subjected to different cutting frequencies (two to four cuts per season) and types of N fertilisation (slurry and slurry plus mineral). Hay samples from each cut were incubated (in situ) in the rumens of three cows (incubation times: 2, 4, 8, 16, 24, 48 and 72 h; sample weight: 15 mg/cm(2) of free bag area) or inserted (in vitro) into three different digestion jars Oar volume: 2 1; bag size 5 cm x 3 cm; sample weight: 250 mg per bag) that were placed into the Daisy(11) incubator for 48 h.
The forages showed large variation in effective d(NDF) (assumed rumen turn over rate: 3% per hour) which ranged from 38 to 43% for hays with two cuts to 58-65% for the hays with four cuts per season. The d(NDF) obtained in situ (Y, effective) and in vitro (X, after 48 h of incubation) were highly correlated (P < 0.01) and the regression equation was
Y = 0.74(+/-0.05)X + 6.39(+/-2.90), n = 18, S.D. = +/-1.96, r(2) = 0.94.
The variability (coefficient of variation, CV) of the in vitro measurements (among jar repeatability) was 2.8%, which is close to that generally found for some chemical analyses of feedstuffs and lower than that obtained for the in situ measures (among cow repeatability, CV: 3.7%). The Daisy(II) incubator produces repeatable in vitro d(NDF) data which are highly related to those obtainable with the reference in situ procedure. (C) 2003 Elsevier Science B.V. All rights reserved
Anxiety stress and nociceptive responses in mice.
No full textNociception in laboratory animals appears to be influenced by physical or emotional stressors. Nevertheless, the reported data are not univocal.Discrepancies seem to be caused by some kind of stress model and/or by the timing of stressor application. The aim of the present work is to studythe influence of chronic application of a well-controlled and defined anxiety stress paradigm (rotational stress) on the behavioral formalin painresponses in mice maintained in a low-stress environment. The results indicate that emotional chronic stress increases specific pain responses inthe late inflammatory phase and, correspondingly, decreases self-grooming. Locomotor activity appears influenced by pain presence only.The hormonal and neural mechanisms that could be involved in the observed nonspecific and specific nociceptive responses to stress arediscussed
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
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
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