Fisheries thematic mapping : a prerequisite for intelligent management and development of fisheries

Le document discute la pertinence de la cartographie thématique dans le contexte général de l'halieutique et indique l'importance de la cartographie des ressources, en particulier dans les ZEE des pays en développement. La perspective historique du développement de la science halieutique dans les zones de pêches traditionnelles confirme que la cartographie des ressources est une première et importante étape de l'évaluation des stocks, particulièrement dans la zone côtière. Certaines méthodes d'évaluation découlant directement de cette cartographie sont mentionnées, ainsi que les dangers d'une utilisation abusive de modèles supposant que les hypothèses d'homogénéité s'appliquent à des populations géographiquement grégaires et sous-dispersées. Le document passe en revue les diverses considérations spatiales qui affectent les divers types d'analyses effectuées sur les pêcheries. On y propose quelques critères et une classification grossière des divers types d'application de la cartographie aux pêches, y compris leur utilisation pour la pêche exploratoire, les prospections des navires de recherche, les systèmes de collecte des statistiques, la préparation des plans d'aménagement, l'allocation de l'espace maritime pour l'aquaculture, l'aménagement du littoral et les études d'impact, les négociations concernant les frontières maritimes et les accords de pêche. La périodicité de la mise à jour des cartes varie selon les applications. Dans certains cas, le principal souci doit être la facilité de mise à jour plutôt qu'une grande précision dont la nécessité est souvent limitée par les capacités de positionnement des petits bateaux de pêche. Le document insiste, enfin, sur la nécessité de promouvoir l'application en routine de technologies telles que les microordinateurs et la télédétection, ainsi que l'élaboration de logiciels pour l'établissement et la mise à jour rapide des cartes thématiques. (Résumé d'auteur

Development and implementation of genomic predictions in beef cattle

peer-reviewedBeef production represents a considerable contribution to local and global economies and food security but also the environmental footprint of agricultural production systems. The development of accurate genomic evaluations in beef populations are more difficult than in dairy populations for reasons including the presence of multiple breeds, poor extent of phenotyping, lack of artificial insemination, and beef systems being generally a lower-margin business of poorer adopters of technology. Several options exist to minimize or overcome the limitations of developing accurate genomic evaluations for beef cattle

Apolipoprotein E4 effects on topological brain network organization in mild cognitive impairment.

The Apolipoprotein E isoform E4 (ApoE4) is consistently associated with an elevated risk of developing late-onset Alzheimer's Disease (AD); however, less is known about the potential genetic modulation of the brain networks organization during prodromal stages like Mild Cognitive Impairment (MCI). To investigate this issue during this critical stage, we used a dataset with a cross-sectional sample of 253 MCI patients divided into ApoE4-positive (‛Carriers') and ApoE4-negative ('non-Carriers'). We estimated the cortical thickness (CT) from high-resolution T1-weighted structural magnetic images to calculate the correlation among anatomical regions across subjects and build the CT covariance networks (CT-Nets). The topological properties of CT-Nets were described through the graph theory approach. Specifically, our results showed a significant decrease in characteristic path length, clustering-index, local efficiency, global connectivity, modularity, and increased global efficiency for Carriers compared to non-Carriers. Overall, we found that ApoE4 in MCI shaped the topological organization of CT-Nets. Our results suggest that in the MCI stage, the ApoE4 disrupting the CT correlation between regions may be due to adaptive mechanisms to sustain the information transmission across distant brain regions to maintain the cognitive and behavioral abilities before the occurrence of the most severe symptoms

Correlation energies of inhomogeneous many-electron systems

We generalize the uniform-gas correlation energy formalism of Singwi, Tosi, Land and Sjolander to the case of an arbitrary inhomogeneous many-particle system. For jellium slabs of finite thickness with a self-consistent LDA groundstate Kohn-Sham potential as input, our numerical results for the correlation energy agree well with diffusion Monte Carlo results. For a helium atom we also obtain a good correlation energy.Comment: 4 pages,1 figur

Normative Multi-Agent Programs and Their Logics

Multi-agent systems are viewed as consisting of individual agents whose behaviors are regulated by an organization artefact. This paper presents a simplified version of a programming language that is designed to implement norm-based artefacts. Such artefacts are specified in terms of norms being enforced by monitoring, regimenting and sanctioning mechanisms. The syntax and operational semantics of the programming language are introduced and discussed. A logic is presented that can be used to specify and verify properties of programs developed in this language

Surgical treatment of theintersex condition in the dog

Intersexuality is a rare congenital condition that leads to the development of an ambiguous urogenital tract. Removal of the reproductive tract is recommended to avoid genital diseases; however there is scant information about the procedure. The objective of this report is to describe the surgical procedure used to treat the canine intersex condition. Surgical corrections were performed on four intersex dogs: three 78 XX SRY-negative (one bilateral ovotestis, two sertolicell-only syndrome) and one 78 XX SRY-positive (sertolicell-only syndrome). Despite the different genetic and histological features, the anatomical characteristics were similar. The patients presented a vulva that lacked of dorsal fold placed ventrocranially to its anatomically normal position, a hypertrophied os clitoris protruding from the vulva and a urinary opening near to its normal position in the bitch..

Poetic traditions of revolt. On Rene Menil's Theory of the Public

How to reciprocate a precious gift? In this case the gift was given to us twice. First, in the shape of Paget Henry’s pioneering reinvention of René Ménil’s “Aesthetic Marxism”. Through it, second, we’re led to rediscover the fantastic world of Ménil’s hitherto ignored but crucial contribution to contemporary philosophy: his systematisation of the poetics of revolt. Our debt with Ménil and Henry is unpayable. Our humble response in this essay is to offer readers a map to the treasure that is Ménil’s thought. We aim to offer a path across and beyond the sedimentation and pacifying effects of given frames of judgment and the imagination in today’s post-classical public sphere. We call it “fantastic critique”, largely inspired by our wider reading of Ménil’s work and specifically his original concept of the “velocity of the spirit”. It renews the Hegelo-Marxian revolutionary formula. Here. Keep it with you. It’s a precious gift