1,721,839 research outputs found
The Iberian lynx needs networks of large reserves
No full textRodriguez Alejandro. The Iberian lynx needs networks of large reserves. In: Ecologia mediterranea, tome 28 n°2, 2002. p. 101
A new colony of critically endangered Northern Bald Ibises has been discovered in an Al Badia (desertic steppe) area of central Syria
No full textRodriguez Alejandro. A new colony of critically endangered Northern Bald Ibises has been discovered in an Al Badia (desertic steppe) area of central Syria. In: Ecologia mediterranea, tome 28 n°2, 2002. p. 101
Risk of Iberian lynx mortality under different hunting regimes: implications for the selection of reintroduction sites
No full textRodriguez Alejandro. Risk of Iberian lynx mortality under different hunting regimes: implications for the selection of reintroduction sites. In: Ecologia mediterranea, tome 30 n°2, 2004. pp. 242-243
High-Dimensional Fluctuations in Liquid Water: Combining Chemical Intuition with Unsupervised Learning
Full text linkThe microscopic description of the local structure of water remainsan open challenge. Here, we adopt an agnostic approach to understanding water'shydrogen bond network using data harvested from molecular dynamics simulationsof an empirical water model. A battery of state-of-the-art unsupervised data-sciencetechniques are used to characterize the free-energy landscape of water starting fromencoding the water environment using local atomic descriptors, throughdimensionality reduction andfinally the use of advanced clustering techniques.Analysis of the free energy under ambient conditions was found to be consistentwith a rough single basin and independent of the choice of the water model. Wefind that thefluctuations of the water network occur in a high-dimensional space,which we characterize using a combination of both atomic descriptors andchemical-intuition-based coordinates. We demonstrate that a combination of bothtypes of variables is needed in order to adequately capture the complexity of thefluctuations in the hydrogen bond network atdifferent length scales both at room temperature and also close to the critical point of water. Our results provide a general frameworkfor examiningfluctuations in water under different conditions
Trace expressions and associated limits for equilibrium Casimir torque
No full textNational Science Foundation http://dx.doi.org/10.13039/100000001Cornell Center for Materials Research http://dx.doi.org/10.13039/100008585Defense Advanced Research Projects Agency http://dx.doi.org/10.13039/10000018
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
Creep-feeding para aumentar el peso al destete ¿Mejora el desempeño de las vacas?
No full textEl creep-feeding es la suplementación con concentrados energéticos o proteicos a los terneros al pie de la madre. Solo los terneros tienen acceso al concentrado, que normalmente se ofrece en comederos diseñados para evitar que la vaca tenga acceso al alimento.EEA Cuenca del SaladoFil: Maresca, Sebastian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; ArgentinaFil: Lopez Valiente, Sebastian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; ArgentinaFil: Rodriguez, Alejandro Martin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentin
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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