Éditeur(s) : Elsevier Sci Ltd
Résumé : The reduction of by-catch mortality is an objective of the ecosystem approach to fisheries and a request made by consumers. Elasmobranchs, an important component of the French tropical tuna purse seine fishery by-catch, are currently thrown back into the sea. Fishers interact with various types of elasmobranchs that range widely in size, weight and shape, and could pose various degrees of danger to the crew. A diversity of discarding practices within the fleet were reported, some practices were considered suitable, others needed to be adapted and improved and others simply had to be banned. The majority of the crews were likely to improve their handling practices if they were presented with practical suggestions that were quick and easy. Combining scientific observations and empirical knowledge from skippers and crew, a manual, providing appropriate handling practices to ensure crew safety and increase the odds of survival for released animals has been developed and disseminated. Bringing these good practices onto the decks of fishing vessels should contribute to the reduction of the fishing mortality of some vulnerable species. It would be positively viewed by consumers as an act that reduces fishing's footprint on the environment and promoting animal welfare which would improve the image of fishing industry. Mitigation research is by definition an iterative process and different complementary methods must be carried out at different levels of the fishing process to significantly reduce the mortality of the by-catch.
Marine Policy (0308-597X) (Elsevier Sci Ltd), 2014-02 , Vol. 44 , P. 312-320

Droits : 2013 Elsevier Ltd. All rights reserved.
http://archimer.ifremer.fr/doc/00159/27008/28367.pdf
DOI:10.1016/j.marpol.2013.09.025
http://archimer.ifremer.fr/doc/00159/27008/

Éditeur(s) : Actes du 6e colloque national BRG, La Rochelle, 2-3-4 octobre 2006
Résumé : Previous studies have shown heritable variation in larval developmental traits in the Pacific oyster Crassostrea gigas. In order to study the genetic consequences of production of oyster larvae in hatcheries, two factors, specific to hatcheries, were examined: the effect of discarding the smallest larvae (i.e. culling) and the effect of temperature (20°C versus 26°C). A mixed-family approach was used in order to infer the genetic composition of larval populations and family assignment, limiting possible environmental bias and allowing the study of a relatively large number of families using a limited number of larval tanks. Our results show that three multiplexed highly polymorphic microsatellite markers are a powerful tool for family assignment and, consequently, for the study of bivalve larvae genetics. Culling, by selective sieving of the smallest larvae is an advantageous practice at a phenotypic scale as it reduced variance in larval size, variance of developmental rate and time to settlement. Culling of 50% of the larval population only led to 15% less spat, showing a positive phenotypic correlation between larval growth and settlement success. However, culling represents a substantial risk for diversity loss, because it increases the variance of reproductive success among parental oysters. The effective population sizes of early settling cohorts of settlement were lower than those of later ones. Our results show that the settlement of slow growing larvae significantly contributes to minimizing the variability of reproductive success and therefore to maximizing genetic diversity. These results corroborate the low estimations of variability of broodstocks sampled in several French commercial hatcheries, relative to natural populations. The genetic composition of the larval population and the resulting spat was significantly different between the two tested temperatures, revealing genotype x environment interaction for survival. Similarly, genotype x environment interaction was also observed for larval growth as a higher temperature exerted a positive influence on the expression of genetic variability for this trait. Consequently, we can conclude that a temperature of 26°C coupled with culling, to common practice in oyster hatcheries, is likely to amplify the selection pressure for fast growing larvae. To test for this hypothesis, we compared larval developmental traits in the progeny of a hatchery broodstock closed for 7 generations, with the progeny of wild oysters and the two possible hybrids. Our results show that selection of fast growing larvae can counteract presumed inbreeding depression, due to higher mean relatedness among hatchery broodstock than in the wild. Genetic effects of intensive rearing conditions at larval stage are significant and should be taken into account in hatchery practices, especially in terms of genetic diversity management.
Afin d'étudier les conséquences génétiques des pratiques de production en écloserie d'huître creuse, deux facteurs ont été examinés : l'élimination des petites larves et la température. Nos résultats montrent que l'assignation de parenté par marqueurs microsatellites est un outil performant pour les études génétiques en phase larvaire de familles élevées en mélange. Bien qu'avantageux d'un point de vue phénotypique, le tamisage sélectif représente un risque de perte de diversité. La fixation des larves à croissance lente permet en effet de minimiser la variabilité du succès reproducteur et de fait, de maximiser la variabilité génétique. Ces résultats corroborent les estimations de variabilité sur les stocks d'écloseries françaises où l'on constate une diversité allélique inférieure à celle de populations issues du milieu naturel. La température exerce également une influence sur la précocité de l'expression de la variabilité génétique pour la croissance larvaire. Ainsi une température élevée associée à une procédure de tamisage peut amplifier l'effet sélectif. Enfin, la sélection de larves à croissance rapide semble démontrée, s'opposant à la dépression de consanguinité présumée. Les conditions d'élevage peuvent donc avoir un effet génétique significatif qui devrait être pris en considération dans les pratiques d'écloserie, notamment dans la gestion de la diversité génétique.

Droits : info:eu-repo/semantics/openAccess
http://archimer.ifremer.fr/doc/2006/acte-1505.pdf
http://archimer.ifremer.fr/doc/00000/1505/

Éditeur(s) : Elsevier
Résumé : A field survey was conducted on two intensive shrimp farms using similar technical practices: one (DF) historically affected by a vibriosis, the other (HC) in which the pathogen has been observed although no mortality event has occurred. Because historical data suggest that eutrophication process may directly or indirectly play a role in the disease outbreak, we focussed our research on its dynamics. A higher variability of the phytoplanktonic compartment linked to an imbalance in the molar N:P ratio was observed in farm DF compared to farm HC, implying a modification on the linkage between the bacteria and phytoplankton compartments at DF. The beginning of the mortality outbreak at DF followed a shift from picoto nanophytoplankton. The organic matter mineralization process at the water-sediment interface may explain the disturbance observed in the water column during eutrophication. The consequences of this disturbance on shrimps' health status and pathogen ecology are discussed. (C) 2009 Elsevier Ltd. All rights reserved.
Marine Pollution Bulletin (0025-326X) (Elsevier), 2010-03 , Vol. 60 , N. 3 , P. 402-411

Droits : 2010 Elsevier B.V. All rights reserved.
http://archimer.ifremer.fr/doc/00002/11368/8119.pdf
DOI:10.1016/j.marpolbul.2009.10.012
http://archimer.ifremer.fr/doc/00002/11368/

Éditeur(s) : Wiley-blackwell Publishing, Inc
Résumé : Recent theoretical and field studies conducted in both terrestrial and marine ecosystems have suggested that diversity could be a more complex and multi-component concept than previously thought. However, it is still poorly understood to what extent the information provided by the various indices is complementary with regard to diversity, and to what extent this complementarity is reproducible in different situations or at different scales of observation. In the present work, we have analysed the reproducibility of the empirical relationships between 11 diversity indices related to four major aspects (components) of species diversity (species richness, rarity, evenness and species taxonomy) in order to determine whether there is a general pattern of redundancy or complementarity in diversity measures that holds across years, areas and spatial scales. We have applied this approach to groundfish diversity through the analysis of 2404 trawl hauls collected during the first large-scale annual surveys carried out using a single sampling design throughout the northern Mediterranean Sea (ranging from 36.3 to 45.7 degrees N, and 5.3 degrees W to 28 degrees E). Whatever the years, areas and scales studied, we found a strong reproducibility in the number and the nature of the main complementary components of diversity. The whole set of diversity indices considered may be roughly split into 6 complementary groups of descriptors. This result highlights that, in contrast to what is still the usual practice, monitoring diversity should not be based on only one or two of the most widely used components, even at large scale. Finally, in a context where developing tools for monitoring diversity is considered as a high priority worldwide, the strong reproducibility of the relationships between diversity indices we observed offers a basis for discussion of the feasibility and relevance of proposing a general shortlist of indices for monitoring diversity at different management scales.
Ecography (0906-7590) (Wiley-blackwell Publishing, Inc), 2010-12 , Vol. 33 , N. 6 , P. 1123-1135

Droits : 2010 The Authors / Ecography
http://archimer.ifremer.fr/doc/00029/14064/11382.pdf
DOI:10.1111/j.1600-0587.2009.06259.x
http://archimer.ifremer.fr/doc/00029/14064/

Éditeur(s) : HAL CCSD Elsevier
Résumé : International audience
Since the Shea, J.B. and Morgan (1979) study, investigators have repeatedly shown that the learning of a set of movement patterns (as evaluated in a retention test) is enhanced when acquisition occurred under a random rather than a blocked schedule of practice. Supposedly, this is the case because a random schedule of practice necessitates more elaborate cognitive activities than a blocked schedule before each acquisition trial can be initiated. Our main objective was to determine whether the advantage for learning found for random practice increases as a function of the number of acquisition trials. During acquisition, the results indicated a general tendency for smaller movement reproduction errors under a blocked rather than a random schedule of practice. However, this effect disappeared with larger amount of acquisition trials. In retention, larger errors were observed when acquisition occurred under a blocked rather than a random schedule of practice. Finally, the disadvantage for learning observed for the blocked schedule of practice disappeared under a block-repeated condition in which each movement pattern was first practiced under a blocked schedule which was then repeated a second time. The results are discussed in terms of the so-called contextual interference effect and indicates some of its limitations.
ISSN: 0001-6918

hal-01662846
https://hal.archives-ouvertes.fr/hal-01662846
DOI : 10.1080/00222895.1994.9941657
PUBMED : 8165923

Éditeur(s) : Université des Antilles Études caribéennes
Résumé : La zona del sudeste de la provincia de Buenos Aires (Argentina), se vislumbra como territorio fértil para los estudios culturales debido a su densidad histórica, social y patrimonial, en un marco de disímiles condiciones geográficas. Dos ciudades bonaerenses intermedias, Mar del Plata y Tandil, se han destacado por sus procesos de construcciones socio-culturales asociadas al ocio y al turismo. El estudio propuesto abarca la primera mitad del siglo XX para reconocer las transformaciones acontecidas en el hábitat y en el habitar, observando las prácticas sociales y las renovadas relaciones entre cuerpo y espacio que darán lugar a propuestas diferenciadas en relación con la estadía costera o serrana. Para ello se hará hincapié en la lectura de la revista ilustrada Caras y Caretas, en particular, en las imágenes de notas y avisos publicitarios.
The southeast zone of the province of Buenos Aires (Argentina), it is glimpsed as fertile territory for the cultural studies due to its historical, social and heritage density, in a frame of dissimilar geographical conditions. Two intermediate cities, Mar del Plata and Tandil, have been outlined for their processes of sociocultural constructions associated with leisure and tourism. The proposed study includes the first half of the XXth century to recognize the transformations happened in the habitat and the living, observing the social practices and the renewed relations between body and space that will give place to different proposals in relation with the coastal or highland demurrage. For this, it will be emphisized in the reading of the illustrated magazine Caras y Caretas, especially, the images of notes and advertising notices.
La zone du sud-est de la province du Buenos Aires (Argentine) est perçue comme un territoire fertile pour les études culturelles pour des raisons historique, sociale et patrimoniale, avec des conditions géographiques dissemblables. Deux villes intermédiaires, Mar del Plata et Tandil, se distinguent par leur processus de construction socioculturelle associée aux loisirs et au tourisme. L'étude proposée concerne la première moitié du XXe siècle. Elle s’attache à reconnaître les transformations des habitats et des modes de vie, en observant les pratiques sociales et les relations renouvelées entre le corps et l'espace en relation avec l’environnement du lieu de séjour, côtier ou montagnard. Pour cela, on mettra l'accent sur la lecture de la revue illustrée Caras y Caretas, en particulier les illustrations et les avis publicitaires.
Argentine
Buenos Aires
Mar del Plata
Tandil

Droits : info:eu-repo/semantics/openAccess
urn:doi:10.4000/etudescaribeennes.7626
http://journals.openedition.org/etudescaribeennes/7626

Éditeur(s) : HAL CCSD
Résumé : International audience
The aim was to identify patterns of work organization characteristics using data from epidemiological surveillance program of musculoskeletal disorders (MSD) implemented in the Pays de la Loire region between 2002 and 2005. A total of 3710 workers were included and completed a administered questionnaire including 16 organizational variables. Ascendant hierarchical clustering (AHC) of organizational variables and AHC of workers had identified five patterns of work organization characteristics: technical constraints and weak decision latitude; internal/external demand and mean decision latitude; weak pace constraints and mean decision latitude; internal/external demand and high decision latitude; weak pace constraints and high decision latitude. Relationships with MSD diagnosed by occupational physicians were then studied.
The specific health programs (SHP) are one of the four mechanisms of prevention planned by the Health and Safety at work Law in the province of Quebec. If the Law appoints only a responsible doctor, it is in reality Health at work teams (HWT) that develop these SHP. In this communication, based on the model of the working situation and the diagram of inter professional practices of collaboration, we study the practices of inter professional collaboration (CIP) in the HWT. The observed practices vary between independent practices, in parallel, of consultation, of dialogue and in shared services. Formalization of the teams, coordination of communication, leadership, respect and professional identities influence particularly the practices of CIP.
L’objectif était d’identifier des patterns de caractéristiques d'organisation du travail à partir des données du programme de surveillance épidémiologique des troubles musculo-squelettiques (TMS) mis en œuvre dans les Pays de la Loire entre 2002 et 2005. Au total, 3 710 salariés ont été inclus et ont répondu à un questionnaire comportant notamment 16 variables organisationnelles. Une classification ascendante hiérarchique (CAH) des variables organisationnelles puis une CAH des salariés ont permis d’identifier cinq patterns de caractéristiques d’organisation du travail : contraintes techniques et faible latitude décisionnelle ; demande interne/externe et latitude décisionnelle moyenne ; faibles contraintes de rythme et latitude décisionnelle moyenne ; demande externe/interne et forte latitude décisionnelle ; faibles contraintes de rythme et forte latitude décisionnelle. Les associations avec les TMS diagnostiqués par des médecins du travail ont ensuite été étudiées.
Actes du 50ème congrès de la Société d'Ergonomie de Langue Française
Paris, France

halshs-01307785
https://halshs.archives-ouvertes.fr/halshs-01307785

Éditeur(s) : HAL CCSD L'Harmattan
Résumé : International audience
The pétanque is used here as a field to interrogate two aspects. Firstly, in a global context, how a cultural practice is modified. In Pondicherry, south of India, how this physical activity, which appeared after the French colonization, is integrated in indianization process? Secondly, that practice show us the links and exchanges that took part between French national of Tamil-Indian origin and Tamils-Indians people? One of the main questions is to understand how the postcolonial context influences their relations? Through the analysis of semi-directives interviews and the observation of the game pétanque for two years, this work shows how this activity represents a syncretism space in which cultural exchanges are realized. The pétanque appears as spaces where the different individuals with their cultural background are engaged in a symbolic compete. This global situation does not produce uniformity but cultural hybridization. Taking place in specific postcolonial context, the practice of pétanque allows expressing different socio-cultural identities between individuals of French and Indian nationality.
La pétanque est ici utilisée comme un terrain d’étude pour interroger deux aspects. D’une part, dans un contexte mondialisé, la manière dont se transforme une pratique culturellement située. Dans le contexte indien de Pondichéry, de quelle façon cette pratique « sportive » parvenue après la colonisation, mais par l’intermédiaire de celle-ci, se trouve-t-elle prise dans un processus d’indigénisation ? D’autre part, quels rapports s’établissent entre les individus qui la pratiquent, à la fois Français d’origine tamoule et Indiens tamouls ? Surtout, comment le contexte postcolonial dans lequel s’inscrivent leurs identités et leurs pratiques pèse-t-il sur ces rapports ? À partir de l’analyse d’interviews semi-directifs d’acteurs et de l’observation de la pratique de la pétanque à Pondichéry durant deux années, cet article montre comment cette activité représente un espace syncrétique dans lequel se formalisent des échanges culturels. La pétanque apparaît ainsi comme un espace de mise en concurrence symbolique des individus représentant des espaces nationaux culturellement différents. Loin de produire des formes d’uniformité, la mondialisation produit ici des hybridations culturelles. Inscrite dans un contexte postcolonial spécifique, la pétanque donne lieu à l’expression de registres socioculturels divers dans les échanges entre individus de nationalité française et indienne.
ISSN: 1165-0354

hal-01681876
https://hal.archives-ouvertes.fr/hal-01681876

Éditeur(s) : HAL CCSD American College of Sports Medicine (ACSM)
Résumé : International audience
PURPOSE AND METHODS: To determine the effects of cycling on a subsequent triathlon run, nine male triathletes underwent four successive laboratory trials: 1) an incremental treadmill test, 2) an incremental cycle test, 3) 30 min of cycling followed by 5 km of running (C-R), and 4) 30 min of running followed by 5 km of running (R-R). Before and 10 min after the third and fourth trials, the triathletes underwent pulmonary function testing including spirometry and diffusing capacity testing for carbon monoxide (DL(CO)). During the C-R and R-R trials, arterialized blood samples were obtained to measure arterial oxygen pressure (PaO2). During all trials, ventilatory data were collected every minute using an automated breath-by-breath system. RESULTS: The results showed that 1) the oxygen uptake (VO2) observed during subsequent running was similar for the C-R and R-R trials; 2) the ventilatory response (VE) during the first 8 min of subsequent running was significantly greater in the C-R than in R-R trial (P < 0.05); 3) only the C-R trial induced a significant increase (P < 0.05) in residual volume (RV), functional residual capacity (FRC), and the ratio of residual volume to total lung capacity (RV/TLC); and 4) although a significant decrease (P < 0.05) in DL(CO) was noted after C-R, no difference between the two exercise trials was found for the maximal drop in PaO2. CONCLUSIONS: We concluded that 1) the C-R trial induced specific alterations in pulmonary function that may be associated with respiratory muscle fatigue and/or exercise-induced hypoxemia, and 2) the greater VE observed during the first minute of running after cycling was due to the specificity of cycling. This reinforces the necessity for triathletes to practice multi-trial training to stimulate the physiological responses experienced during the swim-cycle and the cycle-run transitions.
ISSN: 0195-9131

hal-00720412
https://hal.univ-antilles.fr/hal-00720412
https://hal.univ-antilles.fr/hal-00720412/document
https://hal.univ-antilles.fr/hal-00720412/file/Article.pdf

Éditeur(s) : HAL CCSD
Résumé : International audience
INTRODUCTION: There are no French guidelines for the management of complicated parapneumonic effusions. A national observational study was carried out to assess the main features of current clinical practice for this condition. MATERIAL AND METHODS: A questionnaire was sent by email to the 1500 members of the Société de Pneumologie de Langue Française (SPLF) between 15th November and 15th December 2012. RESULTS: There were 92 responders, i.e. a response rate of 6%. Of these, 87 physicians mentioned that they were involved in the management of patients with complicated parapneumonic effusions with a median number of cases of 10 per year (IQR: 5-20). Chest tube drainage was the main approach used for pleural fluid aspiration (n=51/87), followed by repeated thoracentesis (n=29/87) and early surgery (1/87). Five physicians answered both chest tube drainage or repeated thoracentesis and one physician either chest tube drainage or early surgery. Pleural fibrinolytics were never used by 20% of physicians, only in case of loculations by 70% and by 10% of respondents in all cases. Only 3 physicians combined fibrinolytics with DNAse. A double antibiotic dose was used by one third of physicians. All the physicians used respiratory physiotherapy during hospitalization and to aid recovery. Follow-up practices were heterogeneous. CONCLUSIONS: The management of complicated parapneumonic effusions varies significantly in France. National guidelines may be helpful to define best practice and aid in its implementation.
Revue Des Maladies Respiratoires

hal-01146851
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01146851
DOI : 10.1016/j.rmr.2015.01.001
PUBMED : 25725981

Éditeur(s) : HAL CCSD Wiley
Résumé : International audience
ObjectivesTo compare the efficacy, in current clinical practice, of ă first regimens containing abacavir with lamivudine (ABC/3TC) or ă tenofovir with emtricitabine (TDF/FTC) in patients with baseline viral ă load 100000 HIV-1 RNA copies/mL. ă MethodsUsing a prospective cohort, we selected all patients starting a ă first HIV regimen based either on ABC/3TC or on TDF/FTC. The propensity ă score (PS) method was used to limit the indication bias due to the ă observational nature of the data. Adjusting and weighting methods via PS ă were used to compare the effectiveness of a first regimen containing ă ABC/3TC or TDF/FTC. The primary outcome was treatment failure by month ă 12 (M12). ă ResultsOverall, 2781 patients started an antiretroviral (ARV) regimen ă with ABC/3TC or TDF/FTC each in combination with efavirenz, boosted ă atazanavir or boosted darunavir. Among the 2472 uncensored patients ă before M12, 962 (39%) had a baseline viral load 100000 copies/mL of ă whom 294 were in treatment failure at or before M12. Our analyses showed ă no difference between ABC/3TC and TDF/FTC in the risk of treatment ă failure at M12 in patients starting an ARV regimen with a high viral ă load (100000 copies/mL). ă ConclusionsUsing a large prospectively collected cohort of patients ă seeking care in France, we found no evidence that ABC/3TC based regimens ă led to more failures than TDF/FTC based ones in patients with high ă baseline viral loads.
ISSN: 1464-2662

hal-01482656
https://hal.archives-ouvertes.fr/hal-01482656
DOI : 10.1111/hiv.12306

Éditeur(s) : HAL CCSD Lippincott, Williams & Wilkins
Résumé : International audience
Regarding nerves as simple cables and electrical conduits is a gross error that does not allow us to understand the anomalies and disorders observed postoperatively. Instead, nerves should be seen as a living tissue of which physiological regulation is as complex as that of the blood-brain barrier. This review describes the basic structure and functions of this blood-nerve barrier and highlights the mechanisms of its breakdown and the resultant disorders. For clinical practice, it is important to note that the diffusion of molecules from the perineurium or from the blood is very limited, and so the blood-nerve barrier is a major pharmacologic barrier. Any stress upon neural physiological balance, particularly the terminal vascular blood supply, will induce the classic inflammatory cascade. Due to the complexity of the vascular system, nerve ischaemia will occur more quickly when the terminal blood supply is compromised. This blood supply can adapt in a variety of ways but when these possibilities of adaptation are exceeded, tissue ischaemia may be more extensive. Also, even after the initial injury has subsided, inflammation can cause a secondary insult. This could be particularly important in some patients with subclinical neuropathy.
ISSN: 0265-0215

hal-01477207
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01477207
DOI : 10.1097/EJA.0000000000000590
PUBMED : 28146457

Éditeur(s) : HAL CCSD
Résumé : Since its apparition at the end of the second world word, the practice of sport for people suffering with motor deficiency has known numerous and quick evolutions. Initially conceived in the science of rehabilitation therapy, it now integrates more and more the principle of performance by getting closer to “ordinary” sport movements. However, this process of sportivisation is variable depending on the social and cultural context in which it is taking place. Initiated at the start of the 1970’s, Guadeloupe’s Movement for Sport for People with motor impairments has been meeting recurring difficulties in how to organise and federate itself. During this work, we have conducted a survey directly with the local disabled sport associations. Meetings with the principal actors of this movement had been taking place, archives had been gathered and both direct and participative observations had been carried out in order to retrace the collective history and to identify the individual theories utilised in the formation of Guadeloupe’s Movement for Sport for Disabled People. For this we have used the tools of the socio-history and of the organizational analysis and handled the speeches with an analyse of the relationship by opposition (ARO). The main results bring to light that the associative dynamics which structure the sport practices of Guadeloupe’s disabled people are impregnated by a sport logic combined with social, cultural and identity stakes. Therefore the principal thesis defended in the process of the research is that the organisation of Guadeloupe’s Movement for Sport for Disabled People is impregnated by the highly contextual strategies where the identities -sport, Caribbean, disabled- produces some very particular adjustments.
Depuis son apparition à la fin de la seconde guerre mondiale, la pratique sportive des personnes atteintes de déficiences motrices a connu de nombreuses et rapides évolutions. Conçue initialement dans une logique rééducative, elle intègre de plus en plus le principe de performance en se rapprochant du mouvement sportif « ordinaire ». Toutefois, ce processus de sportivisation est variable selon l’espace social et culturel dans lequel il se réalise. Initié dans les années 1970, le mouvement handisportif guadeloupéen rencontre des difficultés récurrentes à s’organiser et à se fédérer. Au cours de ce travail, nous avons réalisé une enquête de terrain auprès des associations handisportives locales. Des entretiens avec les acteurs principaux de ce mouvement ont été conduits, des archives recueillies et des observations directes et participantes effectuées afin de retracer l’histoire collective et de repérer les logiques individuelles mobilisées dans la structuration du mouvement handisport en Guadeloupe. Pour cela nous avons utilisé des outils de la socio-histoire et de l’analyse organisationnelle et traité les discours au travers d’une analyse des relations par opposition (ARO). Les principaux résultats mettent en évidence que les dynamiques associatives structurant la pratique sportive des personnes handicapées motrices en Guadeloupe sont imprégnées par une logique sportive doublée d’enjeux sociaux, culturels et identitaires. Ainsi, la thèse principale défendue au terme de cette recherche est que l’organisation du mouvement handisport en Guadeloupe est marquée par des stratégies fortement contextualisées où la conjugaison des identités – sportive, antillaise, de personne handicapée - produit des ajustements singuliers.
https://hal.archives-ouvertes.fr/tel-01682717

Droits : info:eu-repo/semantics/OpenAccess
tel-01682717
https://hal.archives-ouvertes.fr/tel-01682717
https://hal.archives-ouvertes.fr/tel-01682717/document
https://hal.archives-ouvertes.fr/tel-01682717/file/Approche%20socio-historique%20du%20mouvement%20handisport%20en%20Guadeloupe.pdf

Éditeur(s) : HAL CCSD
Résumé : International audience
Wound healing is important for sharks from the earliest life stages, for example, as the 'umbilical scar' in viviparous species heals, and throughout adulthood, when sharks can incur a range of external injuries from natural and anthropogenic sources. Despite anecdotal accounts of rapid healing in elasmobranchs, data regarding recovery and survival of individuals from different wound or injury types has not been systematically collected. The present study documented: (i) 'umbilical scar' healing in wild-caught, neonatal blacktip reef sharks while being reared for 30 days in flow-through laboratory aquaria in French Polynesia; (ii) survival and recovery of free-swimming blacktip reef sharks in Australia and French Polynesia following a range of injuries; and (iii) long-term survival following suspected shark-finning activities. Laboratory monitoring, tag-recapture records, telemetry data and photo-identification records suggest that blacktip reef sharks have a high capacity to survive and recover from small or even large and severe wounds. Healing rates, recovery and survival are important factors to consider when assessing impacts of habitat degradation and fishing stress on shark populations. The present study suggests that individual survival may depend more on handling practices and physiological stress rather than the extent of physical injury. These observations also contribute to discussions regarding the ethics of tagging practices used in elasmobranch research and provide baseline healing rates that may increase the accuracy in estimating reproductive timing inferred from mating scars and birth dates for neonatal sharks based on umbilical scar healing status. Cite as: Chin A, Mourier J, Rummer JL (2015) Blacktip reef sharks (Carcharhinus melanopterus) show high capacity for wound healing and recovery following injury. Conserv Physiol 3: doi:10.1093/conphys/cov062.
Conservation physiology

Droits : http://creativecommons.org/licenses/by/
hal-01250745
https://hal-univ-perp.archives-ouvertes.fr/hal-01250745
https://hal-univ-perp.archives-ouvertes.fr/hal-01250745/document
https://hal-univ-perp.archives-ouvertes.fr/hal-01250745/file/Conserv%20Physiol-2015-Chin-.pdf
DOI : 10.1093/conphys/cov062

Éditeur(s) : HAL CCSD ACM
Résumé : International audience
Environmental resources (e.g., air quality, water quantity) are needed to understand fundamental questions such as global change. Such resources are often collected from sensors, including humans acting as sensors. Tools have emerged to manage such data in the form of time series and, in particular, the Sensor Observation Service (SOS) which offers a framework based on predefined relational database schema. Environmental observatories can be built using such frameworks, allowing to address specific key scientific questions by collecting and sharing large-scale environmental data. However, the strict schema of SOS database makes it difficult to integrate some data that cannot be directly mapped to the schema. Guidelines and best practices are offered in the literature in order to reuse standards from the Semantic Web but they do not cover all needs. In particular, they do not help to reflect the fact that a single environmental database can lead to several SOS models. Since being aware of these multiple possibilities is crucial for a better use of the observatories, we argue that some extensions of the existing works are required. In this paper, we thus propose an extension of existing vocabularies to achieve this goal. Our contribution is illustrated on the real case of the Lebanese-French O-LiFE environmental observatory.
6th ACM International Conference on Web Intelligence, Mining and Semantics
Nimes, France

lirmm-01381082
https://hal-lirmm.ccsd.cnrs.fr/lirmm-01381082
https://hal-lirmm.ccsd.cnrs.fr/lirmm-01381082/document
https://hal-lirmm.ccsd.cnrs.fr/lirmm-01381082/file/presentationwims_s1_2.pdf
DOI : 10.1145/2912845.2912856

Éditeur(s) : HAL CCSD BioMed Central
Résumé : International audience
Background: Access to health care is a global public problem. In French Guiana, there exists social inequalities which are specially marked amongst immigrants who make up a third of the population. Health care inequalities are prevalent. The objective of this study was to determine factors associated with why health care amongst the poor population of Cayenne was renounced.Study design The study was cross sectional. It focused on knowledge, attitudes, practices and beliefs of the population living in poor neighborhoods of the Cayenne area. Methods: Populations coming at the Red Cross mobile screening unit in poor urban areas of Cayenne were surveyed from July 2013 to June 2014. Structured questionnaires consisted of 93 questions. Written informed consent was requested at the beginning of the questionnaire. The predictors for renouncing medical care were determined using logistic regression models and tree analysis. Results: Twenty percent of persons had renounced care. Logistic regression showed that renouncement of health care was negatively associated with having no regular physician Adjusted Odds Ratio (AOR)=0.43 (95%CI=0.24-0.79) and positively associated with being embarrassed to ask certain questions AOR=6.81 (95%CI=3.98-11.65) and having been previously refused health care by a doctor AOR=3.08 (95%CI=1.43-6.65) . Tree analysis also showed that three of these variables were linked to renouncement, with feeling shy to ask certain questions as the first branching.Conclusion: Although most people felt it was easy to see a doctor, one in five had renounced health care. The variables identified by the models suggest vulnerable persons generally had previous negative encounters with the health system and felt unwanted or non eligible for healthcare. Health care mediation and welcoming staff may be simple solutions to the above problems which were underscored in our observations.
ISSN: 1472-6963

hal-01288656
https://hal.archives-ouvertes.fr/hal-01288656
https://hal.archives-ouvertes.fr/hal-01288656/document
https://hal.archives-ouvertes.fr/hal-01288656/file/Predictive%20factors%20for%20renouncing%20to%20care%20in%20FG.pdf
PUBMEDCENTRAL : PMC4731954

Éditeur(s) : HAL CCSD American Society of Tropical Medicine and Hygiene
Résumé : International audience
These authors contributed equally to this work. Abstract. Human behaviors are increasingly recognized to play a key role in the spread of infectious diseases. Although a set of social and cognitive determinants has been consistently found to affect the adoption of health protective behaviors aiming to control and prevent a variety of infections, little is currently known about the ecological drivers of these behaviors in epidemic settings. In this article, we took advantage of the outbreak of chikungunya, a reemerging mosquito-borne disease, that occurred in French Guiana in 2014–15 to test empirically the assumption proposed by Zielinski-Gutierrez and Hayden that the proximity of the disease and perceptions of the natural environment may considerably shape public response to an emerging health threat. To achieve this, a cross-sectional survey was conducted among high school students of the region (N = 1462) at an early stage of the epidemic. Surprisingly, spatial analysis of the collected data leads to counterintuitive results as the participants who lived in the most affected area expressed less concern about the disease and practiced preventive behaviors less frequently than did other participants. These paradoxical results may be attributed to the possible activation of risk denial processes which have previously been observed in the risk perception literature, and described by several social and psychological defensiveness theories.
ISSN: 0002-9637

hal-01589232
http://hal.univ-reunion.fr/hal-01589232
http://hal.univ-reunion.fr/hal-01589232/document
http://hal.univ-reunion.fr/hal-01589232/file/Flamand%20...Raude%202017%20%28CHIKV%20French%20Guiana%29.pdf
DOI : 10.4269/ajtmh.16-1028

Résumé : The maritime fisheries and mariculture guidance law passed in 1997 specifies that with the perspective of renegotiation of the common fisheries policy in 2002, a report on the special conditions of inshore fisheries be drawn up by the Government. To do so, the Minister of Agriculture and Fisheries entrusted this task to three experts, who are the authors of this report. In accordance with their remit, the situation of fisheries in territorial waters and estuaries of metropolitan France and the four DOM overseas departments ( counties) was examined, in the framework of meetings with professional fishermen, administrations, elected officials and scientific organisations. The first part situates fishing activities in coastal areas within the overall context of French fisheries. The second part provides a detailed report for each seafront (Channel, Atlantic, Mediterranean, West Indies, French Guyana and Reunion Island) on the regulatory framework, fleets, stocks, uses of resources and vulnerable areas of interest for fisheries. The report then analyses the competition within fisheries and with other activities (recreational fishing, extraction of aggregates, tourism, etc.). After these observations, the authors make ten proposals to improve the conditions under which coastal or inshore fisheries are practiced.
La loi d'orientation sur la pêche maritime et les cultures marines votée en 1997 précise que dans la perspective de la renégociation de la politique commune des pêches en 2002, un rapport sur les conditions particulières de l'exercice de la pêche dans la bande côtière sera établi par le Gouvernement. Pour y satisfaire, le Ministre de l'Agriculture et de la Pêche en a confié l'élaboration à trois experts, les auteurs du présent rapport. Conformément à la lettre de mission, la situation de la pêche dans les eaux territoriales et estuaires du territoire métropolitain et des quatre départements d'Outre-Mer a été examinée dans le cadre de rencontres avec les professionnels, les administrations, les élus, les organismes scientifiques. Une première partie permet de situer les activités halieutiques en zone côtière dans le contexte global de la pêche française. La seconde partie est un bilan détaillé par façade (Manche, Atlantique, Méditerranée, Antilles, Guyane, Réunion) du cadre réglementaire, des flottilles, des ressources, des usages de la ressource et des zones sensibles d'intérêt halieutiques. Le rapport analyse ensuite les compétitions au sein de la pêche et avec d'autres activités (pêche récréative, extractions de granulats, tourisme,...). A l'issue de ces différents constats, les auteurs font dix propositions pour améliorer les conditions d'exercice de la pêche en zone côtière.

Droits : info:eu-repo/semantics/openAccess
http://archimer.ifremer.fr/doc/2000/rapport-1200.pdf
http://archimer.ifremer.fr/doc/00000/1200/

Éditeur(s) : HAL CCSD Wiley
Résumé : International audience
Three soil DNA extraction procedures (homemade protocols and commercial kit) varying in their practicability were applied to contrasting soils to evaluate their efficiency in recovering: (i) soil DNA and (ii) bacterial diversity estimated by 16S rDNA pyrosequencing. Significant differences in DNA yield were systematically observed between tested procedures. For certain soils, 10 times more DNA was recovered with one protocol than with the others. About 15 000 sequences of 16S rDNA were obtained for each sample which were clustered to draw rarefaction curves. These curves, as well as the PCA ordination of community composition based on OTU clustering, did not reveal any significant difference between procedures. Nevertheless, significant differences between procedures were highlighted by the taxonomic identification of sequences obtained at the phylum to genus levels. Depending on the soil, differences in the number of genera detected ranged from 1% to 26% between the most and least efficient procedures, mainly due to a poorer capacity to recover populations belonging to Actinobacteria, Firmicutes or Crenarchaeota. This study enabled us to rank the relative efficiencies of protocols for their recovery of soil molecular microbial biomass and bacterial diversity and to help choosing an appropriate soil DNA extraction procedure adapted to novel sequencing technologies.
ISSN: 1751-7915

hal-01546177
https://hal.archives-ouvertes.fr/hal-01546177
DOI : 10.1111/j.1751-7915.2011.00307.x

Éditeur(s) : HAL CCSD
Résumé : More than 15% of Amazon forest has been converted to pastures these last decades. Some authors argued the world’s permanent pastures (30 % of total land) could potentially offset up to 4% of the global GHG emissions, having a carbon (C) storage potential equal to 0.5 Mg C.ha-1.yr-1(Schulze et al 2009). Accordingly, pastures are good candidates to increase soil uptake C in soil while ensuring a basic food production. Here we would like to assess the effects of tropical forest conversion to cattle pasture in the French Amazonia (French Guiana), by following the long-term dynamics of soil C stocks of permanent tropical pastures (Brachiaria humidicola) after deforestation from 1970. A soil inventory campaign was performed to analyse soil C and N stocks (to 1 m depth) along a pasture chronosequence of 6 months to 36 years old pastures and 4 native forest sites (total 24 sites). The annual C sequestration potential demonstrated by the chronosequence, was compared with eddy covariance flux measurements on 2 pastures and one native forest. Our study shows that old (≥ 24 years) tropical pastures resettle the recurrent C storage observed in native forest. These pastures stored between 1.8 ± 0.5 and 5.3 ± 2.1 tC ha-1 yr-1 compared with 2.6 ± 0.5 tC ha-1 yr-1 for the nearby native forest. Our finding show that old tropical pastures accumulate carbon in soil organic matter, particularly in the deep soil layers (0.2-1 m) and without loss of soil fertility. It suggests that such pastures can be exploited by farmers in the long term with appropriate practices (no fire and no overgrazing, but a mixture of grasses and legumes and a grazing rotation plan). Clearly, efforts to curb deforestation are a priority in order to preserve forest biodiversity and C stocks. But it seems now that, in a climate-smart agriculture way, the current challenge is to manage these deforested areas to maintain the productivity of agricultural ecosystems and in the same time their capacity to mitigate GES.
Building tomorrow’s research agenda and bridging the science-policy gap
Montpellier, France

hal-01204231
https://hal.archives-ouvertes.fr/hal-01204231
PRODINRA : 324147