Lutte biologique sous tunnel froid de tomate : essai de lâcher de Macrolophus caliginosus dès la pépinière - compte-rendu 2007

En 2006, une étude réalisée au GRAB dans les mêmes conditions de culture avait montré l'intérêt d'une protection basée sur des lâchers en pépinière du prédateur polyphage Macrolophus caliginosus. L'étude mise en place en 2007 a pour objectif de valider l'intérêt de ce positionnement des lâchers. Les populations de M. caliginosus se sont bien installées, et leur action, complétée par celle des Dicyphus indigènes est probablement à l'origine du bon état sanitaire de la culture : peu d'aleurodes, pas de thrips, ni pucerons, ni acariens. Cette étude a confirmé les résultats obtenus en 2006, et démontre l’intérêt d’une lutte biologique basée sur l’introduction précoce de Macrolophus caliginosus par des lâchers en pépinière, à la dose de 1 individu/plante, complétée par une alimentation constituée d’œufs d’Ephestia en pépinière et en culture. L’absence de traitement insecticide à large spectre (pyrèthre, roténone) a probablement permis de préserver la faune indigène, Dicyphus errans notamment, qui a "épaulé" l'action de Macrolophus caliginosus. Les attaques d’aleurodes d’acariens ont été limitées et les attaques de pucerons et thrips ont été inexistantes

Gian Mario Cazzaniga, (éd.), Storia d’Italia. Annali 25: Esoterismo

Ce vingt-cinquième volume de la série Annali della storia d’Italia aborde un sujet qui n’avait pas encore, à ma connaissance, fait l’objet d’un tel traitement d’ensemble pour l’Italie: l’ésotérisme, de ses sources antiques au Nouvel Âge. Cette somme est composée de vingt-sept études, précédées d’une introduction historique et méthodologique, sur laquelle je reviendrai plus longuement, et dues à vingt-six contributeurs, dans leur quasi-totalité universitaires d’Italie, de France et des Pays-Ba..

Gian Mario Cazzaniga, (éd.), Storia d’Italia. Annali 25: Esoterismo

Ce vingt-cinquième volume de la série Annali della storia d’Italia aborde un sujet qui n’avait pas encore, à ma connaissance, fait l’objet d’un tel traitement d’ensemble pour l’Italie: l’ésotérisme, de ses sources antiques au Nouvel Âge. Cette somme est composée de vingt-sept études, précédées d’une introduction historique et méthodologique, sur laquelle je reviendrai plus longuement, et dues à vingt-six contributeurs, dans leur quasi-totalité universitaires d’Italie, de France et des Pays-Ba..

Marie-Anne Vannier (dir.), Judaïsme et christianisme chez les Pères

Les travaux de Daniel Boyarin, particulièrement Border Lines : the Partition of Judaeo-Christianity (Philadelphie, University of Pennsylvania Press, 2004 — trad. fr. La Partition du judaïsme et du christianisme, Paris, Éditions du Cerf, 2011), ont décidément marqué les recherches sur les origines du christianisme. En témoigne encore Judaïsme et christianisme chez les Pères, volume dirigé par Marie-Anne Vannier, qui réunit les actes du colloque de synthèse du proj..

P. G. Maxwell-Stuart (éd., trad.), The Malleus Maleficarum

À en croire la quatrième de couverture, cette traduction anglaise de 2007 du Malleus maleficarum serait la première depuis 1928. Malheureusement, cette affirmation est inexacte, car en 2006, Christopher S. Mackay a publié aux Presses de l'Université de Cambridge, en deux volumes, l'édition et la traduction intégrales de cette œuvre, accompagnées d'une introduction de près de deux cents pages et d'un minutieux appareil de notes. Le propos de cette nouvelle traduction anglaise, la troisième don..

Statistical Evaluation of Monophyly in the ‘Broad-Nosed Weevils’ through Molecular Phylogenetic Analysis Combining Mitochondrial Genome and Single-Locus Sequences (Curculionidae: Entiminae, Cyclominae, and Hyperinae)

Establishing well-supported monophyletic groups is a key requirement for producing a natural classification that reflects evolutionary descent. In a phylogenetic framework this is best achieved through dense taxon sampling and the analysis of a robust character dataset, combined with statistical testing of topological hypotheses. This study assesses the monophyly of tribes and subfamilies within the diverse ‘broad-nosed weevils’ (Curculionidae: Entiminae, Cyclominae and Hyperinae) through analysis of single-locus sequence data for mitochondrial cox1 and rrnL genes, in combination with a ‘backbone’ of complete and near-complete mitochondrial genome sequences. Maximum likelihood phylogenetic analyses incorporating topological constraints for various higher-taxa were statistically tested using the AU, SH, and KH tests, which indicated that three tribes within Entiminae, as presently classified, are not monophyletic. Moderate and high bootstrap support was also consistent with two entimine tribes (Peritelini and Cylydrorhinini) being each recovered as monophyletic in an unconstrained analysis. Furthermore, one genus of cyclomine weevils (Aphela) is recovered outside the clade of ‘broad-nosed weevils’, although its taxonomic placement remains uncertain. It is apparent that the present approach may be hampered by limited taxon sampling in the ‘backbone’ dataset, rendering it difficult for divergent taxa to robustly match to their closest lineages. However, with improved taxon sampling of the mitogenome tree, the general approach can be a useful taxonomic tool for weevils

The approximate entropy of the electromyographic signals of tremor correlates with the osmotic fragility of human erythrocytes

<p>Abstract</p> <p>Background</p> <p>The main problem of tremor is the damage caused to the quality of the life of patients, especially those at more advanced ages. There is not a consensus yet about the origins of this disorder, but it can be examined in the correlations between the biological signs of aging and the tremor characteristics.</p> <p>Methods</p> <p>This work sought correlations between the osmotic fragility of erythrocytes and features extracted from electromyographic (EMG) activity resulting from physiological tremor in healthy patients (N = 44) at different ages (24-87 years). The osmotic fragility was spectrophotometrically evaluated by the dependence of hemolysis, provided by the absorbance in 540 nm (<it>A</it>_<it>54</it><it>o)</it>, on the concentration of NaCl. The data were adjusted to curves of sigmoidal regression and characterized by the half transition point (<it>H</it>_<it>50</it>), amplitude of lysis transition (<it>dx</it>) and values of <it>A</it>_{<it>540 </it>}in the curve regions that characterize the presence of lysed (<it>A</it>_<it>1</it>) and preserved erythrocytes (<it>A</it>_<it>2</it>). The approximate entropy was estimated from EMG signals detected from the extensor carpi ulnaris muscle during the movement of the hand of subjects holding up a laser pen towards an Archimedes spiral, fixed in a whiteboard. The evaluations were carried out with the laser pen at rest, at the center of the spiral, and in movement from the center to the outside and from outside to the center. The correlations among the parameters of osmotic fragility, tremor and age were tested.</p> <p>Results</p> <p>Negative correlations with age were found for <it>A</it>_{<it>1 </it>}and <it>dx</it>. With the hand at rest, a positive correlation with <it>H</it>_{<it>50 </it>}was found for the approximate entropy. Negative correlations with <it>H</it>_{<it>50 </it>}were found for the entropy with the hand in movement, as from the center to the outside or from the outside to the center of the spiral.</p> <p>Conclusion</p> <p>In healthy individuals, the increase in the erythrocyte osmotic fragility was associated with a decrease in the approximate entropy for rest tremor and with an increase of the entropy for movement tremor. This suggests that the neuromuscular degeneration associated with tremor entails also the mechanisms involved in the breakdown of structural homeostasis of the erythrocyte membrane.</p

Aplicação web para avaliação de oportunidade de automação de processos administrativos

A proposta de estudo consistiu na elaboração de um software capaz de promover apoio organizacional, ou seja, oferecer melhoria da qualidade dos serviços em relação a oportunidade de automação dos processos administrativos. Para tanto, foi adotado estudo de caso, tendo como lócus, o Ministério da Agricultura, Pecuária e Abastecimento (MAPA).  A investigação foi realizada com base em uma pesquisa-ação concentrada nas atividades operacionais relacionadas à cadeia de valor do sistema de convênios do MAPA. O sistema foi projetado em dois planos: banco de dados que visa promover o cruzamento de dados e estabelecer níveis de controle de acesso da aplicação e lógica de programação desenvolvida para a modelagem dos fluxos da aplicação web. Foi observado que uma aplicação web seria mais apropriada em função de ser uma plataforma flexível e móvel. Palavras-chave: Web. Automação. Processos administrativos.

Nomenclatural checklist for Acromegalomma species (Annelida, Sabellidae), a nomen novum replacement for the junior homonym Megalomma Johansson, 1926

Este artículo contiene 20 páginas.Acromegalomma, nomen novum, is introduced as a replacement name for the polychaete genus Megalomma Johansson, 1926 (Annelida, Sabellidae), preoccupied by Megalomma Westwood, 1842 (Insecta, Coleoptera, Carabidae). The historical background of the homonymy and a full list with 36 new combinations in the new genus are included, while two species are considered as species inquirenda.This work was financially supported by the European Community's Seventh Framework Programme (FP7/2007-2013), through the Assemble Grant Agreement no. 227799-ASSEMBLE to the project “Biodiversity of Annelida Polychaeta in the Ria Formosa coastal lagoon: a baseline study”, awarded to J.G. and developed at the CCMAR, University of Algarve (Faro, Portugal).Peer reviewe