3,125 research outputs found
Phylogenetic diversity in conservation: A brief history, critical overview, and challenges to progress – Authors response to reviewers
No full textCardillo M (2023). Phylogenetic diversity in conservation: A brief history, critical overview, and challenges to progress. Cambridge Prisms: Extinction 1, e11
CAPRI versus AGLINK-COSIMO: Two partial equilibrium models - Two baseline approaches
No full textThe agricultural modelling world has generated several models aiming at the analysis of the response of the sector to certain changes in exogenous mainly policy variables. Among those, the CAPRI modelling system developed by a consortium centred on the University of Bonn and the AGLINK-COSIMO model, a joint product of the OECD and the FAO, are well known and accepted as comprehensive tools. This analysis focuses on a qualitative comparison of both models and particularly on the process of setting up the baseline. The baseline is a medium-term projection of agricultural markets reflecting current policies and those already decided upon. This projection in turn serves as the base for comparisons when analyzing scenarios. It is shown that CAPRI uses generic and automatic procedures whenever possible for conducting the database and the baseline, while AGLINK-COSIMO puts more emphasis on expert knowledge in this process. Both approaches are shown to have certain advantages while the conclusion that a combination of them would potentially improve both models will be drawn from this analysis.CAPRI, AGLINK-COSIMO, Baseline process, Agricultural and Food Policy,
Geographic Range Shifts Do Not Erase the Historic Signal of Speciation in Mammals This content downloaded from 150. Geographic Range Shifts Do Not Erase the Historic Signal of Speciation in Mammals
No full textJSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. . Online enhancements: appendix tables, zip file. abstract: Many evolutionary analyses assume that the positions of species geographic ranges are sufficiently phylogenetically conserved that current ranges reflect ancestral ranges and retain the historic signal of speciation. The validity of this assumption has been challenged, because there is evidence that ranges can shift rapidly and extensively. Here I test the assumption of range conservatism using simulations and empirical tests of phylogenetic signal in geographic positions of ranges within mammal orders, families, and genera. In most taxa, range positions show strong phylogenetic signal, quantified using Pagel's l, Mantel tests, and a novel method to measure phylogenetic signal near the tips of a phylogeny. Taxa with highly labile range positions are exceptions to the general pattern and include very young groups such as Sciurus that may still be in the early, rapid-expansion phase of adaptive radiation. In two orders containing many species with large distributions (Artiodactyla and Carnivora), temporal patterns of range evolution are consistent with large instantaneous shifts in range position associated with allopatric speciation. In most other taxa, range evolution is better described by models that allow ranges to evolve along branches of the phylogeny. The results point to a common pattern of phylogenetically conserved ranges where the current position of species ranges reflects their position at the time of speciation, modified by gradual drift of range boundaries through time
After the Addendum: Author Rights Management and/as Library Service
No full textThis report presents the findings from a qualitative study of Rice University faculty attitudes and practices around author rights conducted by Marcel LaFlamme, a graduate student in the Department of Anthropology, during his tenure as a Fondren Fellow. This project was supervised by Shannon Kipphut-Smith, Fondren Library’s scholarly communications liaison
Ruskin traduzido: Sesame and Lilies por Proust e Catalán
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-Graduação em Literatura, Florianópolis, 2009.Este trabalho parte da análise das traduções da obra Sesame and Lilies, de John Ruskin, para o francês e para o castelhano para fazer um exame de questões ligadas ao gênero ensaístico, à tradução de ensaios e à autoria. Para isso, analisarei a tradução de Marcel Proust para o francês e seu paratexto e a tradução para o castelhano feita por Miguel Catalán e o respectivo paratexto.This study analises the translations of Sesame and Lilies, by John Ruskin, into French and Spanish in order to examine issues related to the essay as a literary genre, to the translation of essays and to authorship. This exam will be carried out by analising the translation into French by Marcel Proust and its paratext and the translation into Spanish by Miguel Catalán, accompanied by its paratext
Jean-Marcel Jeanneney à l'OFCE - Fondations et contributions (1981-1989).
No full textJean-Marcel Jeanneney était un économiste rare, à la fois théoricien, empiriste et praticien. C’est son aventure à la tête de l’OFCE que ce livre raconte, ou plutôt qu’il laisse l’auteur lui-même conter au travers d’articles écrits depuis le premier jour de son premier mandat de Président de notre institution. Ce recueil s’ouvre sur une introduction qui rappelle l'attachement du fondateur de l’OFCE au « libéralisme intellectuel», cette indépendance vis-à-vis des idées reçues qu’il jugeait indispensable à la conduite de politiques publiques raisonnables. Il est ensuite structuré en trois parties dont les titres font écho à une oe uvre marquante de Jean-Marcel Jeanneney : Vouloir le débat public en économie, Une mémoire au service de la prospective et Écoute le monde qui vient : intégration globale et unification européenne. Ce volume est un hommage à la mémoire de Jean-Marcel Jeanneney mais plus encore à sa présence. Les textes rassemblés ici par Jean-Paul Fitoussi et Éloi Laurent nous rappellent l’actualité des enseignements les plus précieux de Jean-Marcel Jeanneney : honnêteté, courage et espérance.
Evolution of a hotspot genus: geographic variation in speciation and extinction rates in Banksia (Proteaceae)
No full textBACKGROUND Hotspots of angiosperm species richness and endemism in Mediterranean-climate regions are among the most striking, but least well-understood, geographic patterns of biodiversity. Recent studies have emphasized the importance of rapid diversification within hotspots, compared to non-hotspot regions, as a major contributor to these patterns. We constructed the first near-complete phylogeny of Banksia (Proteaceae) to test whether diversification rates have differed between lineages confined to the southwest Australian hotspot and those found throughout southern, eastern and northern Australia. We then tested for variation in diversification rates among the bioclimatic zones within the southwest hotspot itself. RESULTS Although Banksia species richness in the southwest is ten times that of the rest of the continent, we find little evidence for more rapid diversification in the southwest, although this result is inconclusive. However, we find firmer support for substantial rate variation within the southwest hotspot, with more rapid diversification in the semi-arid heaths and shrublands, compared to the high-rainfall forests. Most of the Banksia diversity of the southwest appears to be generated in the heaths and shrublands, with a high migration rate out of this zone boosting diversity of the adjacent forest zone. CONCLUSIONS The geographic pattern of diversification in Banksia appears more complex than can be characterized by a simple hotspot vs. non-hotspot comparison, but in general, these findings contrast with the view that the high diversity of Mediterranean hotspots is underpinned by rapid radiations. Steady accumulation of species at unexceptional rates, but over long periods of time, may also have contributed substantially to the great botanical richness of these regions.The work was funded by an Australian Research Council Discovery Grant and QEII Fellowship to M. Cardillo (DP0879971), with additional funding provided by the Research School of Biology at the Australian National University
Finite Element Method Analysis applied to the Study of a Corner Joint in Reinforced Concrete Structures
No full textThe principal objective for this work was to extend the field of application of FEM to space frame beam-column connections under static loading and with lateral displacements. A four-storey building was modelled under static load condition. Horizontal and vertical structural elements were designed according to Eurocode 2. In order to understand the behavior of the external node made by under column, two beam and upper column, two models using correct boundary condition and nonlinear behavior of materials have been done using Abaqus Software The analysis was performed on an interior and an exterior joint models each in two conditions: unconfined and confined joint varying the distributions of number of stirrups for the beam reinforcement and the column reinforcement .A sup structural model to submit to numerical analysis have been performed, the Concrete Damage Plasticity model (CDPM) has been chosen for fit the nonlinear behavior for the concrete and the elastoplastic model has been adopted for the nonlinear behavior for the reinforcement (stirrups, longitudinal and vertical bars). The models were then verified against already existing and validated analytical results and results of experiments conducted on specimen
Some Marks in Marcel Iancu’s Creation
No full textThe paper emphasises some aspects of Marcel Iancu’s creation during his dadaist period in Zürich and after his return in Romania where he was one of avant-garde movement leaders and author of some important theoretical articles
Data for: Author Ranking Evaluation at Scale
No full textThis data consists of two test data sets of researchers that have (1) received one or more prestigious prizes for the long-lasting and high impact contribution to their fields (596 data entries) and (2) author names of ACM fellows (1000 data entries).Each author in the data sets is matched to the corresponding ACM author profileID and multiple Microsoft Academic Graph author entity IDs (name disambiguated). It also includes citation counts, publication counts, download counts from various sources (ACM Digital Library, Google Scholar, Microsoft Academic)
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