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Sample records for activites electroencephalograpiques spontanees

  1. Effect of a non lethal whole-body gamma irradiation on the spontaneous and evoked electroencephalographic activities of the adult rabbit; Effets d'une irradiation gamma globale non letale sur les activites electroencephalograpiques spontanees et evoquees du lapin adulte

    Energy Technology Data Exchange (ETDEWEB)

    Court, L [Commissariat a l' Energie Atomique, Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

    1969-07-01

    The whole of the experimental methods described (animal preparation, achievement of a precise physiological technique, dosimetry, biological information processing) allowed us to follow the changes for 15 days in the spontaneous and evoked electroencephalogram activities of rabbits submitted to a non-lethal 400 rads whole-body gamma-irradiation. Behavioural troubles, changes in the arousal state and the spontaneous electrical activity of the neo-cortex and hippocampus were noticed constantly together with an enhanced cortical excitability, and the appearance of elements of the paroxystic series sometimes in contrast with a general decrease in amplitude. After a visual stimulus the general morphology of evoked activities at the level of the primary visual areas and hippocampus was unchanged, but enhanced latencies and delays, less systematic modifications in amplitudes seemed to show out a direct effect of radiations on the nervous system and sensorial activities; these troubles seemed to occur independently from the basic electrical activity. As a whole, the changes observed were usually transitory and varied with each individual. Finally an assumption is made to explain the mechanism of arousal troubles and the general evolution of spontaneous electrical activity in the brain. (author) [French] 'L'ensemble des methodes experimentales decrites (preparation des animaux, mise au point d'une technique physiologique precise, dosimetrie, traitement de l'information biologique) a permis de suivre, pendant 15 jours, chez le lapin soumis a une irradiation gamma globale non letale de 400 rads, les modifications des activites electroencephaliques spontanees et evoquees. De facon constante, on note des troubles du comportement, des modifications de la vigilance et de l'activite electrique spontanee du neo-cortex et de l'hippocampe, ainsi qu'une augmentation de l'excitabilite corticale, l'apparition d'elements de la serie paroxystique contrastant parfois avec une diminution

  2. Effect of a non lethal whole-body gamma irradiation on the spontaneous and evoked electroencephalographic activities of the adult rabbit; Effets d'une irradiation gamma globale non letale sur les activites electroencephalograpiques spontanees et evoquees du lapin adulte

    Energy Technology Data Exchange (ETDEWEB)

    Court, L. [Commissariat a l' Energie Atomique, Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

    1969-07-01

    The whole of the experimental methods described (animal preparation, achievement of a precise physiological technique, dosimetry, biological information processing) allowed us to follow the changes for 15 days in the spontaneous and evoked electroencephalogram activities of rabbits submitted to a non-lethal 400 rads whole-body gamma-irradiation. Behavioural troubles, changes in the arousal state and the spontaneous electrical activity of the neo-cortex and hippocampus were noticed constantly together with an enhanced cortical excitability, and the appearance of elements of the paroxystic series sometimes in contrast with a general decrease in amplitude. After a visual stimulus the general morphology of evoked activities at the level of the primary visual areas and hippocampus was unchanged, but enhanced latencies and delays, less systematic modifications in amplitudes seemed to show out a direct effect of radiations on the nervous system and sensorial activities; these troubles seemed to occur independently from the basic electrical activity. As a whole, the changes observed were usually transitory and varied with each individual. Finally an assumption is made to explain the mechanism of arousal troubles and the general evolution of spontaneous electrical activity in the brain. (author) [French] 'L'ensemble des methodes experimentales decrites (preparation des animaux, mise au point d'une technique physiologique precise, dosimetrie, traitement de l'information biologique) a permis de suivre, pendant 15 jours, chez le lapin soumis a une irradiation gamma globale non letale de 400 rads, les modifications des activites electroencephaliques spontanees et evoquees. De facon constante, on note des troubles du comportement, des modifications de la vigilance et de l'activite electrique spontanee du neo-cortex et de l'hippocampe, ainsi qu'une augmentation de l'excitabilite corticale, l'apparition d'elements de la serie

  3. La syphilis congenitale revelee par une fracture spontanee

    Directory of Open Access Journals (Sweden)

    Mounia Lakhdar Idrissi

    2011-11-01

    Full Text Available Alors qu�elle est actuellement oubliee dans les pays developpes, la syphilis congenitale se voit encore chez nous faute du depistage antenatal. Ses formes cliniques sont polymorphes et orientent a tord vers d�autres pathologies surtout en periode neonatale. Le diagnostic n�est donc pas toujours facile. La revelation d�une syphilis congenitale par une fracture spontanee est exceptionnellement decrite. Nous rapportons dans ce travail le cas d�un nourrisson de 2 mois ramene en consultation pour limitation douloureuse des mouvements du bras droit. Le diagnostic est evoque sur les donnees radiologiques et confirme par la serologie syphilitique. Le traitement a repose essentiellement sur l�administration de la penicilline G avec une bonne evolution clinique.

  4. Measurement of the {sup 240}Pu concentration of a plutonium sample by the spontaneous fission method (1960); Mesure de la teneur d'un plutonium en {sup 240}Pu par la methode des fissions spontanees (1960)

    Energy Technology Data Exchange (ETDEWEB)

    Caizergues, R; Clouet d' Orval, C [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

    1960-07-01

    It is very important to know the plutonium-240 content of the plutonium formed in piles. The method of measurement described here consists in counting the number of spontaneous fissions produced in a known quantity of plutonium. This measurement is carried out in a multiple-plate ionisation chamber, the plutonium being deposited on the plates. The disintegration constant of plutonium-240 by spontaneous fission being known the plutonium-240 content in the sample can be calculated. (author) [French] La connaissance de la teneur en plutonium-240 du plutonium forme dans les piles est une question importante. La methode de mesure presentee ici consiste a compter le nombre de fissions spontanees issues d'une quantite connue de plutonium. Cette mesure est effectuee dans une chambre d'ionisation a plateaux multiples sur lesquels est depose le plutonium. La connaissance de la constante de desintegration du plutonium-240 par fissions spontanees permet de calculer la teneur en plutonium-240. (auteur)

  5. EVALUATION DE L'ACTIVITE ANTIBACTERIENNE

    African Journals Online (AJOL)

    kamal

    Activité antibactérienne de l'huile essentielle des inflorescences de Laurus. Nobilis et Lavandula Angustifolia ... Les huiles essentielles des fleurs de Lavandula officinalis et les feuilles de Laurus nobilis inhibent la croissance de Staphylococus aureus .... protocole adopté est le suivant : • incorporation de la fraction de ...

  6. Nouvelles et activités | Page 6 | CRDI - Centre de recherches pour le ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Consultez les nouvelles et les activités. Utilisez cet outil de recherche pour trouver des nouvelles ou des activités précis dans le site Web du CRDI. Content type. Tout. Activités. Avis aux médias. Bulletins. Communiqués. Nouvelle ...

  7. Nouvelles et activités | Page 2 | CRDI - Centre de recherches pour le ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Consultez les nouvelles et les activités. Utilisez cet outil de recherche pour trouver des nouvelles ou des activités précis dans le site Web du CRDI. Content type. Tout. Activités. Avis aux médias. Bulletins. Communiqués. Nouvelle ...

  8. Nouvelles et activités | Page 7 | CRDI - Centre de recherches pour le ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Consultez les nouvelles et les activités. Utilisez cet outil de recherche pour trouver des nouvelles ou des activités précis dans le site Web du CRDI. Content type. Tout. Activités. Avis aux médias. Bulletins. Communiqués. Nouvelle ...

  9. Nouvelles et activités | Page 5 | CRDI - Centre de recherches pour le ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Consultez les nouvelles et les activités. Utilisez cet outil de recherche pour trouver des nouvelles ou des activités précis dans le site Web du CRDI. Content type. Tout. Activités. Avis aux médias. Bulletins. Communiqués. Nouvelle ...

  10. Alter ego + cahier d'activités : A2

    CERN Document Server

    2012-01-01

    Le cahier propose de valider et de renforcer les connaissances acquises à travers une grande variété d’activités : de vocabulaire ; de grammaire ; de communication ; de compréhension écrite et production écrite ; de plus, des activités de compréhension orale (CD audio inclus) viennent enrichir le travail sur les compétences de communication. À la fin du cahier, un portfolio permet à l’apprenant de suivre de façon active et réfléchie son apprentissage.

  11. Evaluation de l'activite antifalcimiante de differents extraits des ...

    African Journals Online (AJOL)

    L'étude de l'activité antifalcimiante s'est faite sur les prélèvements sanguins de 32 drépanocytaires homozygotes SSFA2. Après induction de la falciformation des ... The study of antifalcimiante activity was done on the blood samples of 32 SSFA2 homozygous sickle cell patients. After induction of sickling of the red blood ...

  12. DELF B1 200 activités

    CERN Document Server

    Bloomfield, Anatole

    2006-01-01

    L'ouvrage est organisé par compétences de réception et de production. Chaque partie propose d'abord une présentation de l'épreuve correspondante, puis les activités de préparation suivies d'épreuves-types et d'une auto-évaluation. Dans le cadre d'une approche actionnelle, les activités fournissent les outils nécessaires à la préparation des examens. Elles donnent des exemples concrets répondant aux attentes des candidats comme à celle des examinateurs. LeNouveau DELF B1 propose des activités précises en vue d'atteindre les compétences nécessaires aux épreuves (oral, écrit, réception, production); sa simplicité et sa pédagogie en font une méthode complète. Dans la tradition de la collection Nouvel Entraînez-vous, cet ouvrage est pratique, didactique et se prête à une utilisation en autonomie ou en classe.Le niveau B1 dit " avancé " évalue un niveau de compétence où l'apprenant peut se considérer comme étant indépendant. Arrivé à ce stade, il est apte de comprendre l'inform...

  13. Flux des polluants liés aux activités anthropiques, risques sur les ...

    African Journals Online (AJOL)

    Les activités anthropiques interfèrent sur les eaux de surface en créant des problèmes environnementaux et sanitaires. Les activités domestiques, agricoles, industrielles, hospitalières, et les activités de pêche artisanale et de tourisme, sont les plus incriminées. La pollution des eaux de surface par les métaux lourds, les ...

  14. Solutions de remplacement à la culture du tabac et aux activités ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Solutions de remplacement à la culture du tabac et aux activités connexes (Inde) ... L'Inde fait toutefois partie du groupe de travail sur les activités de remplacement de la culture du tabac économiquement viables de l'Organisation mondiale de la santé (OMS) et dispose de ... India, Central Asia, Far East Asia, South Asia ...

  15. Activités antioxydantes de dix plantes medicinales de la ...

    African Journals Online (AJOL)

    l'élaboration de nouveaux médicaments qui seront non seulement ... En effet, sur ce nombre, seulement 6% ont été testés pour leur activité biologique et 15 % ont été évalués sur le plan phytochimique (Verpoorte, 2000).. Notre travail porte sur dix .... La mesure de l'activité antiradicalaire des dix extraits de plantes a été ...

  16. Activité antioxydante des extraits méthanoliques de Phragmanthera ...

    African Journals Online (AJOL)

    2014-12-29

    Dec 29, 2014 ... Détermination de l'activité antiradicalaire : L'activité antiradicalaire des extraits est déterminée par la méthode de réduction du radical libre du DPPH (1,1, diphenyl-2- picrylhydrazyl). Un volume de 50 µl de chaque extrait à différentes concentrations (50-400 mg/l pour les feuilles,. 5-25 mg/l pour les tiges, ...

  17. Formation à distance et activité du stagiaire de la formation professionnelle continue

    OpenAIRE

    Verquin-Savarieau, Béatrice

    2014-01-01

    Quels contenus des lettres de missions pour quelles démarches et activités d’ingénierie de formation, pour des étudiants salariés en activité et suivant leurs études à distance ? Cet article questionne le stage de formation professionnelle continue dans le cadre d’une formation hybride. Il s’agit d’interroger en particulier la conception de la mission de stage, en tant que contenu opératoire facilitant les transformations des sujets dans l’action. Nous présenterons le rôle crucial joué par la...

  18. Evaluation du niveau d'activité physique dans un service Marocain d ...

    African Journals Online (AJOL)

    Plusieurs études ont montré l'intérêt du maintien ou de la reprise d'une activité physique sur l'état de santé des patients. Le but de notre travail est d'analyser le niveau d'activité physique chez nos patients hémodialysé chronique. Méthodes: Nous avons réalisé une étude transversale au centre d'hémodialyse de l'hôpital Al ...

  19. Migration spontanee de projectile intracranien: presentation clinique ...

    African Journals Online (AJOL)

    Les traumatismes crâniens par arme à feu sont graves. Les manifestations cliniques sont variables et peuvent présenter quelques particularités. Les auteurs rapportent un cas de migration spontané de projectile intracérébral survenue après un traumatisme crânien par arme à feu au cours d'une partie de chasse. Elle a été ...

  20. Activités anti-radicalaires de l'huile essentielle et des extraits bruts ...

    African Journals Online (AJOL)

    une haute capacité de blocage du peroxyde d'hydrogène en comparaison avec les contrôles positifs de l'acide gallique et l'acide caféique. Mots-clés : Thymus numidicus, extraits bruts, activité antioxydante. Anti-radical activities of essential oil ...

  1. Etude de l'activité antifongique d'extraits de Cymbopogon citratus ...

    African Journals Online (AJOL)

    1 Institut du Développement Rural, Université polytechnique de Bobo-Dioulasso, 01 BP 1091 Bobo-Dioulasso,. Burkina Faso. ... essentiels de quelques plantes locales dans la lutte contre les microorganismes. ... les concentrations a présenté une forte activité antifongique contre Pyricularia oryzae et un effet réducteur sur.

  2. Synthèse, étude toxicologique et activité psychotrope de nouvelles ...

    African Journals Online (AJOL)

    Hilaire

    Pharmacology. Synthèse, étude toxicologique et activité psychotrope de nouvelles arylidènpyridazin-. 3-ones N-substituées. Adnane BENMOUSSA1*, Pascal Manuele KANYONGA2,3, M'Hammed ANSAR1, Amina ZELLOU2, J EL. HARTI1, Jamal LAMSAOURI1, My Abbes FAOUZI2 , Ahmed ZAHIDI1, Hamid BENZIANE1, ...

  3. 78 FR 15682 - Foreign-Trade Zone 84-Houston, Texas, Authorization of Production Activit, Mitsubishi Caterpillar...

    Science.gov (United States)

    2013-03-12

    ... DEPARTMENT OF COMMERCE Foreign-Trade Zones Board [B-88-2012] Foreign-Trade Zone 84--Houston, Texas, Authorization of Production Activit, Mitsubishi Caterpillar Forklift America Inc. (Forklift Trucks), Houston, TX On November 2, 2012, the Port of Houston Authority, grantee of FTZ 84, submitted a notification of...

  4. Évaluation des activités antifongiques des extraits de plantes contre ...

    African Journals Online (AJOL)

    SARAH

    affection la plus importante de la culture du taro au Cameroun depuis 2010. Cette étude a été réalisée pour évaluer l'activité antifongique des extraits de quatre plantes; (Laggera pterodonta), le cyprès (Cupressus lusitanica), ...

  5. Planificateur des activités de la haute direction | CRDI - Centre de ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Il incombe à la planificatrice des activités de la haute direction et du conseil de veiller ... et du CHD aux fins de discussion et de recommandations auprès de la secrétaire et ... Concevoir et tenir à jour un système de suivi fiable sur les sujets de ...

  6. Role of Spiral and Multislice Computed Tomography in the evaluation of traumatic and spontaneous oesophageal perforation. Our experience; Ruolo della Tomografia Computerizzata Spirale e Multistrato nello studio delle lesioni traumatiche e spontanee dell'esofago: nostra esperienza

    Energy Technology Data Exchange (ETDEWEB)

    De Lutio di Castelguidone, Elisabetta; Pinto, Antonio; Merola, Stefanella; Stavolo, Ciro; Romano, Luigia [Azienda Ospedaliera di Rilievo Nazionale A. Cardarelli, Napoli (Italy). Dipartimento di Diagnostica per Immagini

    2005-03-01

    oesophageal perforation, CT showed the presence of a intramural haematoma in one case, oesophageal fluid distension with gas and a small peri-oesophageal fluid effusion (Mallory-Weiss syndrome) in another, and oesophageal rapture (Boerhaave syndrome) in the last case. Conclusions: Our experience shows that in patients with suspected traumatic and spontaneous oesophageal perforation, standard cervical and chest radiography may suggest a suspected oesophageal perforation in only a small proportion of cases, whereas oral contrast oesophagography has a higher sensitivity. Through the careful analysis of suggestive and specific signs of oesophageal perforation, a correct CT examination enables an accurate and timely diagnosis which significantly affects prognosis and provides valuable indications for treatment. [Italian] Scopo: Presentare la nostra esperienza relativa al ruolo della TC nello studio delle perforazioni traumatiche e spontanee dell'esofago. Materiale e metodi: Da marzo 2001 a maggio 2003 sono giunti alla nostra osservazione 12 pazienti (7 di sesso maschile, 5 di sesso femminile, di eta' compresa tra 25 e 66 anni, eta' media 43,5) con sospetta lesione esofagea da incidente stradale (in 4 casi), ferita d'arma bianca (un caso), post-intubazione (2 casi), da indigestione di corpo estraneo (2 casi) e di tipo spontaneo (3 casi). Cinque pazienti praticavano l'esame standard del torace e della regione cervicale. In 2 pazienti con sospetta indigestione di corpo estraneo veniva somministrato gastrografin per os. In tutti i 12 casi veniva eseguito l'esame TC del collo-torace-addome senza e con mdc ev e con mdc idrosolubile per os in 4 casi. Risultati: Nei 5 pazienti con trauma cervico-toracico-addominale l'indagine TC evidenziava oltre a lesioni traumatiche pleuro-parenchimali (pneumotorace, versamento pleurico ed enfisema sottocutaneo) anche reperti suggestivi di perforazione esofagea: aria mediastinica in sede periesofagea (5 casi), fluido

  7. Activité antibactérienne des flavonoides d'une plante médicinale ...

    African Journals Online (AJOL)

    Mots clés : Activité antibactérienne - Flavonoïdes - Marrubium vulgare L. - Souches multirésistantes. ... Keywords: Antibacterial Activity - Flavonoids - Marrubium vulgare L. - Multiresistant strains. ..... antimicrobial activities of the essential oil of.

  8. Activité anti-inflammatoire de l'extrait aqueux des feuilles de Elaeis ...

    African Journals Online (AJOL)

    Elaeis guineensis est souvent utilisée en médecine traditionnelle africaine dans la prise en charge de nombreuses pathologies. Ces travaux avaient pour objectif de faire une étude phytochimique et de déterminer l'activité anti-inflammatoire de l'extrait aqueux des feuilles de Elaeis guineensis. Le modèle de l'œdème.

  9. Nouvelles et activités | CRDI - Centre de recherches pour le ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Restez informé. Soyez au courant des toutes dernières nouvelles au sujet des programmes et des activités du CRDI, de ses réalisations et de celles des chercheurs que nous subventionnons. Apprenez-en plus sur les événements à venir au Canada et dans nos régions ou obtenez des renseignements sur les conférences, ...

  10. Etude de l'activité antibactérienne des huiles essentielles de la ...

    African Journals Online (AJOL)

    Le recours aux plantes médicinales constitue alors une des plus intéressantes pistes à explorer ; c‟est dans cette perspective que nous nous sommes intéressés à l‟étude de l‟activité antibactérienne des feuilles de la Sauge officinale (Salvia officinalis L.) de la région du nord-est Algérien. Dans cette étude, nous avons ...

  11. Étude de l'activité antibactérienne des huiles essentielles de ...

    African Journals Online (AJOL)

    SARAH

    31 juil. 2014 ... J. Appl. Biosci. 2014. Étude de l'activité antibactérienne des huiles essentielles de Teucrium capitatium L et l'extrait de Siléne vulgaris sur différentes souches testées. 7482. Study the antibacterial activity of essential oils Teucrium capitatium L and Silene vulgaris extract on different strains tested. Abstract:.

  12. 174 An International Multi-Disciplinary Journal, Ethiopia Vol. 4 (1 ...

    African Journals Online (AJOL)

    FIRST LADY

    Introduction. It has been reported (Vanderkloot, 1955) that the central nervous system (CNS) ..... Amines biogenes et activitè électrique spontanee du systemè ... Comptes rendus des séances de la societe de biologie (Paris), 164:1225-. 1227.

  13. Etude de l'impact de la variation de la température sur les activités ...

    African Journals Online (AJOL)

    Etude de l'impact de la variation de la température sur les activités microbiennes : application à une population de Listeria monocytogenes CIP 7831, Listeria monocytogenes Scott A CIP 103575 et Escherichia coli ATCC 25922.

  14. La méthanisation agricole - Champ d'activité nouveau pour l'agriculteur

    OpenAIRE

    Claire Etrillard

    2013-01-01

    Traiter la pollution liée aux déchets et aux effluents en produisant de l'énergie renouvelable. Telle est la promesse de la méthanisation agricole actuellement promue par les pouvoirs publics. Le cadre juridique de la méthanisation à la ferme a de ce fait beaucoup évolué ces derniers temps en France. Désormais, les activités de méthanisation exercées par un exploitant agricole sont réputées agricoles, et à ce titre strictement réglementées. Quant aux produits issus de cette méthanisation, l...

  15. Nouvelles géographies des activités extractives 

    Directory of Open Access Journals (Sweden)

    Géraud Magrin

    2011-10-01

    Full Text Available Après un premier dossier consacré aux mines d’Afrique de l’Ouest, EchoGéo prolonge ici l’exploration de la géographie contemporaine des activités extractives en s’intéressant à de nouveaux espaces (Burkina Faso, Guyane, Gabon, Golfe de Guinée ; Asie du Sud et Afrique orientale et à des ressources variées (or, fer, pétrole, gemmes. Les cinq textes qui composent le présent dossier invitent à l’exploration de lieux, de stratégies d’acteurs, de relations entre acteurs et entre acteurs et milieu...

  16. Reconnaissance de formes moléculaires dans les relations structure-activité

    OpenAIRE

    Mathis , Hervé

    1992-01-01

    Non disponible / Not available; Cette thèse présente un logiciel qui a pour but de mieux comprendre les relations entre caractéristiques structurales et propriétés thérapeutiques de molécules envisagées comme médicaments. L'idée majeure est de soumettre une famille de composés, d'une part à des calculs de chimie quantique, d'autre part à des méthodes de reconnaissance de formes, afin d'observer si certaines propriétés moléculaires sont discriminantes vis-à-vis d'une activité pharmacologique m...

  17. 151 Étude phytochimique et évaluation de l'activité anti-oxydante de ...

    African Journals Online (AJOL)

    PR BOKO

    suivi pour étudier l'activité du piégeage du radical libre DPPH est celui décrit par [11]. 3. Résultats et discussion. 3-1. Tests phytochimiques. Le screening phytochimique nous a permis de mettre en évidence la présence de métabolites secondaires au niveau des tissus végétaux de notre plante. Les résultats obtenus sont ...

  18. Evaluation in vitro de l'activité antibactérienne de cinq plantes de la ...

    African Journals Online (AJOL)

    Dans le cadre de la valorisation de la pharmacopée africaine en général et camerounaise en particulier, des décoctions de feuilles de Ricinus communis, Harungana madagascariensis, Erigeron floribundus, Chromoleana odorata et Lantana camara ont été étudiées in vitro pour leur activité antibactérienne. Trois souches ...

  19. MULTIPROFESSIONAL AND INTERDISCIPLINARY ACTIVITES PERFORMED ON A GROUP WITH SPECIAL NEEDS: REPORTS OF AN EXPERIENCE

    Directory of Open Access Journals (Sweden)

    Geny Aparecida Cantos

    2010-12-01

    Full Text Available The cardiovascular prevention is based on efforts to prevent or avoid new cardiovascular events. In 1997, a multidisciplinary and interdisciplinary group planned activities focused on awareness of patients for stress management and health promotion. The objective was to provide individuals with special needs, which mostly belonged to the university community, access to alternative practices different from those already available in the medical model and medical technology. It was offered the participants a set of alternative treatments that provided the integration and harmonization of the body as a whole, to integrate conventional medicine with other care models of health promotion. These alternative treatments were: Biodanza ®; and tree water activites (watsu, Halliwick and Biodanza ®, psychological attetion and nutritional education with community lunches and visits to the supermarket, and recreational experiences of the heart, in addition to cardiac monitoring and monthly lectures. The results showed the importance of patients become aware of how they were acting, and from this perception they might believe, plan and be responsible for positive changes in their daily attitudes, contributing to a better quality of life and psychological well-being. These different ways of handling this in different therapeutic groups strengthened the human values associated with the physical and emotional recovery of these patients, better integrating them with the world, with others and with himselves.

  20. Les trajectoires spatiales d’activité des couples The spatial trajectories of couples’ activities

    Directory of Open Access Journals (Sweden)

    Eva Lelièvre

    2010-07-01

    Full Text Available Après avoir examiné les avancées récentes de l’observation et de l’analyse des contextes des parcours individuels en démographie, nous proposons ici de traiter le premier niveau interpersonnel des biographies liées : celui des deux membres d’un couple. Pour cela nous reconstituons la trajectoire de l’espace d’activité des deux conjoints formée des lieux de résidence et de travail qui se succèdent tout au long de leur union à partir des données de l’enquête Biographies et entourage de l’Ined. Puis nous présentons une approche holiste de ces trajectoires permettant d’en dégager une typologie grâce à la mise en œuvre d’une analyse qualitative harmonique dont nous détaillons les principes. La description de ces trajectoires éclaire les arbitrages des couples qui se jouent dans les stratégies de localisation, au confluent du travail, de la famille et du logement. Néanmoins, une discussion précise des limites et des pistes futures est proposée pour dépasser cette première application.After an overview of recent trends in data collection and of the different strategies applied to the demographic analysis of life courses embedded in their context, this paper presents the analysis of a specific level of interpersonal interaction : the intertwined dynamics of the life courses of both members of a couple. To this end, we reconstruct the dynamics of the activity space of couples defined as the territory covered by their place(s of residence and place(s of work since the beginning of their union, taking advantage of a rich data source, the INED Biographies et entourage survey. We then detail the principles of the data analysis method (Qualitative Harmonic Analysis. The description drawn from the typology obtained sheds light on the choices couples make for their residential moves, taking into account their family and occupational priorities. The limits of the method and future research paths are then discussed in

  1. Une activité sous contrôle : l’esclavage à Malte à l’époque moderne

    OpenAIRE

    Brogini, Anne

    2014-01-01

    La pratique de l’esclavage n’est pas nouvelle pour les Hospitaliers de Saint-Jean de Jérusalem à l’époque moderne, ni pour l’île de Malte. Mais l’essor formidable de l’activité corsaire aux xvie et xviie siècles transforme Malte en plaque-tournante de l’esclavage méditerranéen. L’arrivée massive d’esclaves non-chrétiens, puis leur résidence dans le port conduit l’Ordre de Malte à structurer et à règlementer progressivement la pratique corsaire et commerciale (modes et lieux de capture, lieux ...

  2. Activités physiques libres ou encadrées et condition physique liée à la santé chez des adultes burundais: étude transversale

    Science.gov (United States)

    Bizimana, Jean Berchmans; Lawani, Mansourou Mohamed; Akplogan, Barnabé; Gaturagi, Charles

    2016-01-01

    Introduction l’activité physique régulière a un impact positif sur la santé. Cette étude a pour objet de comparer la condition physique liée à la santé des adultes qui s’exercent librement avec celle des adultes bénéficiant d’un encadrement professionnel. Elle tente aussi d’établir une relation entre le niveau d’activité physique et les paramètres de la condition liée à la santé. Méthodes nous avons évalué le niveau d’activité physique et les paramètres de la condition physique liée à la santé. Par le test t pour échantillons indépendants, nous avons comparé les moyennes et avons par le calcul du coefficient de corrélation r de Pearson analysé la relation entre le niveau d’activité physique et les paramètres de la condition physique. Résultats des écarts significatifs (p Le niveau d’activité physique est positivement corrélé (p le cholestérol HDL. Conclusion les résultats de cette étude montrent que l’activité physique libre est aussi efficace que l’activité physique encadrée dans le maintien des profils lipidique et physiologique favorables à la santé chez l’adulte burundais. Cependant, l’activité physique encadrée apporte des bénéfices supplémentaires pour le V˙O2max, la fréquence cardiaque de repos, la souplesse antérieure et la détente verticale PMID:28203315

  3. Les étudiants ont la parole : typologie des caractéristiques des activités technologiques de langue

    Directory of Open Access Journals (Sweden)

    Martine Peters

    2012-06-01

    Full Text Available Abstract Cet article présente une recherche qualitative s’appuyant sur une analyse de construits (Kelly, 1995 réalisée auprès de 71 étudiants inscrits dans des cours de français langue seconde dans cinq universités canadiennes. Les objectifs poursuivis par cette recherche sont d’une part, de réaliser un recensement d’activités technologiques de langue tels que les étudiants les ont utilisées dans leurs cours de français et d’autres part, d’établir une catégorisation des caractéristiques de ces activités. Tout en s’inspirant de certains aspects de modèles existant (Chamberland, Lavoie, et Marquis, 1996; Burnett (2000; Poellbhuber et Boulanger (2001; Perrault (2003; Cantin (2008, cet article propose une typologie de six grands types d’activités basée sur sept continuums bipolaires. Cette typologie de caractéristiques présente des profils différents pour chaque type d’activité et offre des retombées pédagogiques avantageuses pour les professeurs de langue. This paper presents the results of a qualitative construct analysis (Kelly, 1995 survey conducted with 71 students enrolled in French as a second language courses at five Canadian universities. The objectives of this research are to conduct a census of language technological activities that students have used in their French classes and to categorize their characteristics. A typology of six major types of activities based on seven bipolar continua is proposed. This typology presents different profiles for each type of activity and provides educational tools for language teachers. The typology draws on some aspects of existing models from Chamberland, Lavoie, and Marquis (1996, Burnett (2000, Poellbhuber and Boulanger (2001, Perrault (2003 and Cantin (2008.

  4. Effet de l'activité des insectes pollinisateurs sur la pollinisation et le rendement du tournesol de consommation

    Directory of Open Access Journals (Sweden)

    Fougeroux André

    2017-11-01

    Full Text Available La pollinisation entomophile du tournesol est souvent mentionnée comme un facteur contribuant au rendement et à la qualité de cette culture. Alors que les rendements stagnent depuis une trentaine d'années en France, l'amélioration de la pollinisation des tournesols de consommation constitue une piste pour les relancer en conditions agricoles. Notre étude visait à évaluer l'impact d'un front d'insectes pollinisateurs (colonies d'abeilles domestiques installées dans une bande fleurie disposée sur une bordure de parcelles agricoles longue de plus de 550 m de long. Cet impact a été mesuré à différentes distances de ce front d'insectes pollinisateurs sur la fréquentation des capitules par les insectes floricoles, la charge en pollen des stigmates, le rendement et la teneur en huile des graines. Nous avons bien observé un gradient négatif d'activité des abeilles domestiques en fonction de l'éloignement au front de colonies et aussi une diminution du rendement et de la teneur en huile chez le tournesol. Nous présentons la méthodologie originale utilisée ainsi que les premiers résultats obtenus.

  5. Du sport aux activités physiques de loisir : des formes culturelles et sociales bigarrées

    Directory of Open Access Journals (Sweden)

    Éric Dugas

    2007-07-01

    Full Text Available L'espace ludique des formes sociales des pratiques physiques accepte maintes variations. Du jeu informel et libre aux activités physiques institutionnelles (les sports, plusieurs catégories de situations motrices, distinctes des unes des autres, jalonnent l'espace des jeux sportifs. Après avoir défini et délimité, dans un premier temps, les contours et la richesse de l'univers des pratiques physiques ludiques, nous essayons, dans un second temps de mettre au jour le type de pratiques qui coïncident le mieux aux aspirations des pratiquants du xxie siècle. On s'aperçoit actuellement que malgré l'hégémonie du sport au sein de l'espace médiatique et économique, il se dessine néanmoins une tendance forte : la prédominance d’activités physiques ludiques de plus en plus autocontrôlées qui laissent l'initiative aux pratiquants et dans lesquelles les institutions sportives ne sont plus totalement ou pas du tout maître du jeu.From sport to leisure physical activities: mixed cultural and social formsThe game space of physical activities' social forms accepts many variations. From informal and free games to institutional physical activities (sports, several motor situation categories, distinct from each other, punctuate the space of physical games. After having specified and delimited the contours and richness of the world of playful physical activities, we will try to bring to light the kind of practices which coincide best with the 21st century's players or sports (women. Currently, we can see that in spite of sport's hegemony within the media and the economic spheres, a strong tendency is becoming apparent: the predominance of more and more self-controlled playful physical activities, which leave the initiative to players and in which governing bodies are not totally or not at all in command any more.Del deporte a las actividades de ocio: una mezcolanza en las formas culturales y socialesEl espacio lúdico de las formas sociales de

  6. Absolute measurement of {beta} activities and application to the determination of neutronic densities; Mesure absolue d'activites {beta} et application a la determination des densites neutronique

    Energy Technology Data Exchange (ETDEWEB)

    Cohen, R [Commissariat a l' Energie Atomique, Lab. du Fort de Chatillon, Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

    1951-01-15

    M. Berthelot, to my entrance to the ''Commissariat a l 'Energie Atomique'', proposed me to study the absolute measurement of neutron densities. Very quickly the problem of the absolute activity of {beta} sources became the central object of this work. In a first part, we will develop the methods of absolute determination for {beta} activities. The use of a 4{pi} counter permits to get the absolute activity of all beta radioactive source, susceptible to be put as thin leaf and of period superior than some minutes. The method is independent of the spectra of the measured radioelement. we will describe in the second part some applications which use neutron densities measurement, neutron sources intensities and ratio of cross sections of capture of thermal neutrons. (M.B.) [French] M. Berthelot, a mon entree au ''Commissariat a l 'Energie Atomique'', m'a propose d'etudier la mesure absolue des densites neutroniques. Tres rapidement le probleme de l'activite absolue des sources beta est devenu l'objet central de ce travail. Dans une premiere partie, on abordera les methodes de determination absolue des activites beta. L'utilisation d'un compteur 4{pi} permet d 'obtenir l'activite absolue de toute source radioactive beta, susceptible d'etre mise sous forme de feuille mince et de periode superieure a quelques minutes. La methode est independante du spectre du radioelement mesure. On decrira dans la seconde partie quelques applications a des mesures de densites neutroniques, d'intensites de sources de neutrons et de rapport de sections efficaces de capture de neutrons thermiques. (M.B.)

  7. Absolute measurement of {beta} activities and application to the determination of neutronic densities; Mesure absolue d'activites {beta} et application a la determination des densites neutronique

    Energy Technology Data Exchange (ETDEWEB)

    Cohen, R. [Commissariat a l' Energie Atomique, Lab. du Fort de Chatillon, Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

    1951-01-15

    M. Berthelot, to my entrance to the ''Commissariat a l 'Energie Atomique'', proposed me to study the absolute measurement of neutron densities. Very quickly the problem of the absolute activity of {beta} sources became the central object of this work. In a first part, we will develop the methods of absolute determination for {beta} activities. The use of a 4{pi} counter permits to get the absolute activity of all beta radioactive source, susceptible to be put as thin leaf and of period superior than some minutes. The method is independent of the spectra of the measured radioelement. we will describe in the second part some applications which use neutron densities measurement, neutron sources intensities and ratio of cross sections of capture of thermal neutrons. (M.B.) [French] M. Berthelot, a mon entree au ''Commissariat a l 'Energie Atomique'', m'a propose d'etudier la mesure absolue des densites neutroniques. Tres rapidement le probleme de l'activite absolue des sources beta est devenu l'objet central de ce travail. Dans une premiere partie, on abordera les methodes de determination absolue des activites beta. L'utilisation d'un compteur 4{pi} permet d 'obtenir l'activite absolue de toute source radioactive beta, susceptible d'etre mise sous forme de feuille mince et de periode superieure a quelques minutes. La methode est independante du spectre du radioelement mesure. On decrira dans la seconde partie quelques applications a des mesures de densites neutroniques, d'intensites de sources de neutrons et de rapport de sections efficaces de capture de neutrons thermiques. (M.B.)

  8. Activité collective et réélaboration des règles : des enjeux pour la santé au travail

    OpenAIRE

    Caroly , Sandrine

    2010-01-01

    L'activité collective se définit comme une articulation entre le travail collectif et le collectif de travail. Le travail collectif correspond aux modes de coopération et de collaboration entre les membres d'une équipe. Il facilite dans certains cas la mise en œuvre de régulations individuelles et collectives pour gérer les perturbations issues de situations caractérisées par des conflits de but et donnent une ressource à chacun pour ne pas être seul face à la diversité des prescriptions, not...

  9. Évaluation de l’activité hémostatique in vitro de l’extrait aqueux des feuilles de Marrubium vulgare L.

    Directory of Open Access Journals (Sweden)

    Nabil GHEDADBA

    2016-05-01

    Full Text Available L'objectif de cette étude est d’évaluer in vitro l’activité hémostatique des métabolites secondaires des feuilles de Marrubium vulgare. L’analyse qualitative de l’extrait aqueux (EAQ par la chromatographie sur couche mince a révélé la présence de la quercétine, la rutine et le kaempférol. La quantification des phénols totaux par la méthode de Folin Ciocalteu et des flavonoïdes par la méthode AlCl3 a donné des valeurs élevées avec l’EAQ : 175 ± 0,80 mg EAG/100g de MS, 23,86 ± 0,36 mg EQ/100g de MS. De plus, le dosage des tanins condensés par la méthode de la vanilline a montré que l’EAQ contient la valeur la plus élevée : 16,55 ± 0,03 mg E-Catéchine/100g de MS. L’évaluation de l’activité hémostatique par la méthode de recalcification du plasma décalcifié nous a permis de découvrir l’effet anticoagulant de l’EAQ lyophilisé des feuilles de M. vulgare. Une corrélation linéaire positive entre les deux paramètres étudiés (la teneur en tanins condensés et l’activité hémostatique (r = 0,96 ont permis de mettre en évidence un rôle probable de ces composés qui sont des vaso-constricteurs puissants dans l’activité hémostatique.

  10. Littérature progressive du français avec 600 activités : niveau intermédiaire

    CERN Document Server

    Blondeau, Nicole; Né, Marie-Françoise

    2004-01-01

    Une organisation claire : le texte littéraire, une courte biographie de l'auteur et des notes explicatives sur la page de gauche; des activités guidées de découverte et d'exploitation sur la page de droite la progression : les textes sont classés par ordre chronologique. Les activitées de lecture et d'analyse constituent un véritable parcours d'aprentissage le choix des textes : du Moyen Age à nos jours, avec une priorité accordée à la littérature contemporaine (XIXe et XXe), des textes parmi les plus représentatifs de la littérature française, avec une ouverture sur la littérature francophone l'appareil pédagogique propose une approche facilitant la découverte et la compréhension de l'histoire littéraire, le repérage des genres et la portée des idées un usage souple : pour la classe ou en auto-apprentissage A découvrir dans cette deuxième édition revue et augmentée:

  11. Littérature progressive du français avec 600 activités : niveau débutant

    CERN Document Server

    Blondeau, Nicole; Né, Marie-Françoise

    2004-01-01

    Une organisation claire : le texte littéraire, une courte biographie de l'auteur et des notes explicatives sur la page de gauche; des activités guidées de découverte et d'exploitation sur la page de droite la progression : les textes sont classés par ordre chronologique. Les activitées de lecture et d'analyse constituent un véritable parcours d'aprentissage le choix des textes : du Moyen Age à nos jours, avec une priorité accordée à la littérature contemporaine (XIXe et XXe), des textes parmi les plus représentatifs de la littérature française, avec une ouverture sur la littérature francophone l'appareil pédagogique propose une approche facilitant la découverte et la compréhension de l'histoire littéraire, le repérage des genres et la portée des idées un usage souple : pour la classe ou en auto-apprentissage A découvrir dans cette deuxième édition revue et augmentée:

  12. Activite locomotrice de souris isolees, de deux lignees consanguines, dans un environnement semi-naturel ou en cages d'elevage.

    Science.gov (United States)

    Le Pape, G; Lassalle, J M

    1979-10-01

    Des enregistrements continus d'activité locomotrice ont été effectués sur des souris mâles isolées des lignées Balb/c et C57bl/6, vivant en cages d'élevage ou en milieu semi- naturel. Les résultats montrent que les différences entre ces deux situations ne sont pas perçues de la même façon par les animaux des deux lign'ees: alors qu'en cages d'élevage les souris des deux lignées experiment la même quantité totale d'activaté, en milieu semi-naturel les souris Balb/c sont plus actives que les C57bl/6. En outre, l≐s différences observées entre les lignées pour la repartition de l'activité au cours du nycthèmere s'inversent lorsque l'on passe d'une situation à l'autre. L'étude de la variabilité fait aparaître une dispersion plus grande des performances dans la lignée C57bl/6 en cages d'élevage, alors qu'en milieu semi-naturel la dispersion est plus chez Bal/c. Copyright © 1979. Published by Elsevier B.V.

  13. Installation of a bitumen coating plant for high-activity concentrates; Installation pilote d'enrobage par le bitume de concentrats de haute activite

    Energy Technology Data Exchange (ETDEWEB)

    Rodier, J; Lefillatre, G; Seyfried, P [Commissariat a l' Energie Atomique, Chusclan (France). Centre de Production de Plutonium de Marcoule

    1969-07-01

    Following the excellent results obtained on the industrial coating of radioactive sludges, the possibility of solidifying also the evaporation concentrates with bitumen has been considered. For high activity concentrates, the use of bitumen is however limited by two main parameters: temperature resistance, irradiation resistance. By making use of the characteristics of a blown bitumen, it has been possible to design a high activity coating pilot plant treating concentrations of several tens of curies per litre. This plant will make use of a screw-type extrusion machine capable of coating treated concentrates at a rate of 20 l/hr. Before being coated, the concentrates will be subjected to a coprecipitation treatment designed to make the radioelements insoluble. This installation will make possible, apart from technological studies, laboratory experiments on the coated material (measurements on self-heating, on electrical charges, on radiolytic gases, and also lixiviation tests. It is at present believed, on the basis of available data, that it is possible to coat concentrates having an activity of 20 Ci/l at a price of 1840 F per cubic metre. (authors) [French] A la suite des excellents resultats obtenus pour l'enrobage industriel des boues radioactives, il a ete envisage de solidifier egalement les concentrats d'evaporation par le bitume. Pour les concentrats de haute activite, l'emploi du bitume est cependant limite par deux parametres essentiels: tenue a la temperature, tenue a l'irradiation. Grace aux caracteristiques d'un bitume souffle, il a ete possible de concevoir une installation pilote d'enrobage haute activite contenant plusieurs dizaines de curies par litre. Cette installation utilisera une machine du type extrudeuse a vis qui peut enrober 20 l/h de concentrats traites. Avant leur enrobage, les concentrats subiront un traitement de coprecipitation destine a insolubiliser les radioelements. En dehors des etudes technologiques, cette installation

  14. Les activités communicatives des tuteurs en psychologie du développement et en pratiques à l’université

    OpenAIRE

    Olry-Louis, Isabelle

    2011-01-01

    Cet article vise à faire le point sur les activités communicatives déployées par les tuteurs en articulant la littérature propre à la psychologie du développement et celle qui décrit les pratiques d’accompagnement des nouveaux étudiants à l’université. Centré sur l’examen des processus langagiers, cognitifs et socio-affectifs mobilisés, l’article souligne les écarts entre le tutorat tel qu’il est étudié et tel qu’il est mis en pratique. Il conclut en proposant quelques pistes d’amélioration d...

  15. Limit to the measurement of feeble activities using ionization chambers; Limite des possibilites de mesure de faibles activites au moyen de chambres d'ionisation

    Energy Technology Data Exchange (ETDEWEB)

    Briere, M [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1958-07-01

    The present account based on experience acquired in the Biology Service, in measuring feeble activities of tritium and carbon-14 has been prepared for the benefit hose who have to carry out measurements of feeble activities using ionization chambers. Precision are given on the behaviour and actual performance of vibrating condenser electrometers, based on approximately two years operating experience. It is shown that the possibilities of utilisation are not limited as is generally believed by insufficient sensitivity and stability of the electronic equipment, but by the existence of various parasitic phenomena coming from the ionization chamber itself, which make very difficult the measurement of ionization currents which are less than 10{sup -14} A. (author)Fren. [French] Le present compte rendu, base sur l'experience acquise au Service de Biologie dans la mesure de faibles activites de tritium et de carbone-14, est redige a l'intention des personnes ayant a effectuer des mesures de tres faibles activites au moyen de chambres d'ionisation. Il donne des precisions sur le comportement et les performances reelles des electrometres a condensateur vibrant, basees sur environ deux ans d'utilisation, et demontre que les possibilites de mesure ne sont pas limitees - comme on le croit generalement - par l'insuffisance de sensibilite et de stabilite de l'appareillage electronique, mais par l'existence de divers phenomenes parasites dont la chambre d'ionisation est le siege et qui rendent tres difficiles la mesure de courants d'ionisation inferieurs a 10{sup -14} A. (auteur)

  16. Autogestion des troubles de l'humeur et/ou d'anxiété par l'activité physique et l'exercice

    Directory of Open Access Journals (Sweden)

    Louise Pelletier

    2017-01-01

    Full Text Available Introduction : L'activité physique et l'exercice constituent une stratégie d'autogestion importante pour les personnes vivant avec une maladie mentale. Cette étude visait à caractériser à la fois les personnes atteintes d'un trouble de l'humeur et/ou d'anxiété qui faisaient de l'exercice ou de l'activité physique pour aider à gérer leur trouble et celles qui n'en faisaient pas, ainsi qu'à identifier les facteurs facilitant l'activité physique et l'exercice et ceux constituant un obstacle. Méthodologie : L'Enquête sur les personnes ayant une maladie chronique au Canada - Composante des troubles de l'humeur et/ou d'anxiété de 2014 a été utilisée pour cette étude. Les répondants (n = 2 678 ont été classés en fonction de la fréquence à laquelle ils faisaient de l'exercice : (1 aucun exercice, (2 exercice une à trois fois par semaine et (3 exercice quatre fois ou plus par semaine. Nous avons procédé à des analyses descriptives et de régression logistique multinomiale. Nous avons pondéré toutes les estimations afin que les données soient représentatives de la population canadienne adulte vivant en logement privé dans l'une des 10 provinces et ayant déclaré avoir reçu un diagnostic de troubles de l'humeur et/ou d'anxiété. Résultats : Sur l'ensemble des Canadiens affectés, 51,0 % ne faisaient aucun exercice pour aider à gérer leur trouble de l'humeur et/ou d'anxiété, 23,8 % en faisaient d'une à trois fois par semaine et 25,3 % en faisaient quatre fois ou plus par semaine. On a établi un lien entre, d'une part, un âge plus avancé, des niveaux de scolarité plus bas et une suffisance de revenu du ménage plus faible et, d'autre part, une fréquence plus importante de l'inactivité. Les individus vivant avec un trouble de l'humeur (avec ou sans anxiété et ceux avec des comorbidités physiques étaient moins susceptibles de faire régulièrement de l'exercice. Les recommandations d'un médecin ou d

  17. Territorialisation de l’action publique d’appui à la création d’activités en Rhône-Alpes et en Auvergne

    Directory of Open Access Journals (Sweden)

    BONNAUD, Agnès

    2014-07-01

    Full Text Available La création d’emplois et d’activités nouvelles au sein des territoires ruraux est un enjeu majeur pour l’action publique. En région Rhône-Alpes et Auvergne, de nombreux dispositifs d’appui et d’accompagnement se sont mis en place à toutes les échelles, par des acteurs divers, collectivités locales ou associations, menant des actions coordonnées ou pas. À partir de ces exemples, cet article nous propose d’analyser le déploiement récent de ces politiques locales et régionales d’accueil et les perspectives de progression de l’action publique territorialisée en faveur de l’accueil de populations et d’activités.

  18. revue bibliographique des représentations analytiques de coefficients d'activité ioniques moyens dans les solutions binaires électrolytiques Bibliographic Review of Analytic Equations of Mean Lonic Activity Coefficients in Electrolytic Binary Solutions

    Directory of Open Access Journals (Sweden)

    Cruz J. -L.

    2006-11-01

    Full Text Available Le calcul de certaines propriétés à l'équilibre, de systèmes électrolytiques, nécessite la connaissance des coefficients d'activité en phase liquide des constituants de ces systèmes. L'estimation du coefficient d'activité ionique moyen de l'électrolyte permet, pour des systèmes binaires, de calculer ces coefficients d'activité. Dans cette revue bibliographique sont présentées les principales expressions analytiques, de coefficients d'activité ioniques moyens, fournies par la littérature. II est possible de classer ces expressions en plusieurs grandes catégories en fonction des modèles dont elles dérivent. Des critères de choix, de l'une ou l'autre de ces équations, sont proposés suivant le type de système électrolytique et le domaine de concentration étudiés. Liquid-phase activity coefficients must be known in order to calculate various equilibrium properties of electrolytic systems. For binary systems, these coefficients can be calculated by estimating the mean ionic activity coefficient of the electrolyte. This bibliographic review describes the principal analytic equations for mean ionic activity coefficients found in the literature. These equations can be classified in several major categories according to the theoretical model from which they are derived. Some criteria are proposed for choosing one or another of these equations on the basis of the type of electrolytic system and the concentration range studied.

  19. Usage pédagogique de Facebook dans une activité d’apprentissage en groupe par des étudiants tunisiens : analyse de l’efficacité du travail collaboratif

    Directory of Open Access Journals (Sweden)

    Hassen BEN REBAH

    2017-01-01

    Full Text Available Cet article présente une analyse de l’usage pédagogique du réseau socio-numérique Facebook comme dispositif d’apprentissage collaboratif à distance dans l’enseignement supérieur, notamment à l’Institut supérieur des études technologiques de Mahdia (Tunisie. Cette recherche qualitative vise à évaluer l’efficacité du travail collaboratif dans le cadre d’une activité d’apprentissage impliquant des étudiants en informatique. Nous tentons à cet effet de déterminer en quoi l’usage de Facebook comme outil de partage, de communication et d’échanges en réseau favoriserait la mise en place d’un processus efficace de co-construction des savoirs et d’interactions entre apprenants. Pour atteindre cet objectif, l’analyse s’appuie sur le paradigme de l’apprentissage social de Bandura (1977 qui met l’accent sur le jeu d’interactions permanentes entre les comportements d’un individu, son fonctionnement cognitif et les variables de l’environnement. Les données issues des traces d’activités sur le mur du groupe Facebook et des contenus d’entretiens semi-directifs ont permis après analyse d’établir que l’utilisation pédagogique de Facebook a effectivement favorisé la coproduction des savoirs attendus chez les étudiants au cours de l’activité. Ainsi, nous sommes parvenus à la conclusion que l’usage de Facebook est efficace pour la mise en place d’une activité d’apprentissage collaborative à distance. Cependant, cela nécessite l’élaboration en amont d’un véritable scénario de formation organisant le déroulement de l’activité.

  20. Effets d'un hydrocarbure aromatique polycyclique et d'un PCB sur les activités de métabolisation des xénobiotiques de la truite arc-en-ciel (O. mykiss

    Directory of Open Access Journals (Sweden)

    CRAVEDI J. P.

    1998-07-01

    Full Text Available Des truites arc-en-ciel immatures ont été soumises à des conditions statiques d'exposition à 10 et 100 µg/l de 3,3', 4,4'-tétrachlorobiphényle (TCB ou de benzo(apyrène (BaP dissous dans l'acétone, pendant 72 h, puis transférées en eau courante non contaminée. Parallèlement un groupe de poissons a servi de lot témoin. Une partie des poissons a été sacrifiée en fin de période d'exposition, l'autre partie faisant l'objet d'un abattage après 2 semaines en eau propre. Le foie, les rosettes olfactives, les branchies et le rein ont été prélevés sur les poissons et, des microsomes et cytosols ont été préparés pour chacun des tissus par ultracentrifugation dans un tampon approprié. Les activités éthoxyrésorufine-o-dééthylase (EROD, glucuronosyl transférase (UDPGT et glutathion-Stransférase (GST ont été mesurées. Les résultats de l'exposition au BaP montrent qu'aux deux concentrations testées, l'activité EROD a été significativement augmentée par rapport au lot témoin, pour le foie (x 11 à 33 fois et la branchie (x 5 à 7 fois. Seule la dose la plus élevée a permis d'augmenter l'activité de cette enzyme dans le rein et la rosette olfactive. A la fin de la période de dépuration, il n'est observé aucune différence significative entre les lots traités et témoins. Les transferases apparaissent peu sensibles au B(aP. Après 72 h d'exposition au TCB, l'activité EROD du foie, des branchies, des rosettes et du rein est très significativement augmentée (5 à 50 fois selon le tissu par rapport au témoin, aux deux concentrations testées. Cette induction est encore plus nette après la période de 2 semaines en eau propre. L'activité UDPGT hépatique est doublée en fin de traitement pour les deux doses et se maintient à ce niveau au cours de la période de dépuration. Les GST sont légèrement induites dans le foie après les 15 jours de dépuration. Ce travail confirme la grande sensibilité de l'activit

  1. Recent advances in the designing and the equipment of high activity laboratories; Progres recents dans la conception et l'equipement des laboratoires de haute activite

    Energy Technology Data Exchange (ETDEWEB)

    Bazire, R; Duhamel, F [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

    1960-07-01

    The authors described the general principles governing the design of a laboratory for experimenting and handling radioactive substances. The difficulties encountered are of two types: 1) those due to the dangers of external irradiation; 2) those due to the dangers of internal contamination. As an example, the authors describe the French achievements in this field and in particular: - the high-activity laboratories at Saclay; - the laboratory for the examination of irradiated fuels at Saclay; - the 'hot' laboratory of the CEN-Grenoble; - the alpha, beta and gamma laboratories of the CEN-Fontenay-aux-Roses. Finally, the report describes the protective materials used for these installations. (author) [French] Les auteurs exposent quels sont les principes generaux qui president a la conception d'un laboratoire a des travaux et des manipulations sur des substances radioactives. Les difficultes a surmonter sont de deux ordres: 1) celles qui proviennent du danger d'irradiation externe; 2) celles qui proviennent du danger de contamination interne. A titre d'exemple, les auteurs decrivent les realisations francaises dans ce domaine et en particulier: - le laboratoire de haute activite de Saclay, - le laboratoire d'examen des combustibles irradies de Saclay, - le laboratoire chaud du CEN-Grenoble, - les laboratoires alpha, beta, gamma du CEN-Fontenay-aux-Roses. Enfin, le rapport decrit les materiaux de protection mis en oeuvre pour ces realisations. (auteur)

  2. Définir l’activité journalistique. Le travail juridique d’évaluation de l’« exercice de la profession »

    Directory of Open Access Journals (Sweden)

    Camille Dupuy

    2013-12-01

    Full Text Available Le journaliste professionnel est défini en France par une loi de 1935 dont les dispositions sont inscrites dans le Code du travail. Il est notamment caractérisé par rapport à « l’exercice de [sa] profession » dont le contenu n’est pas précisé. Depuis 1936, une commission paritaire (CCIJP est chargée de délivrer une carte d’identité de journaliste professionnel (carte de presse. En cas de refus, le demandeur peut s’adresser à une commission d’appel (CSCIJP puis à la juridiction administrative. Ces acteurs opérationnalisent la définition du journaliste professionnel en évaluant à partir de cas concrets en quoi consiste l’activité journalistique. À partir d’une analyse qualitative du « travail juridique » de ces acteurs en charge de délivrer la carte de presse (entretiens, observations, décisions des instances et jurisprudence du Conseil d’État, on montre qu’ils ne peuvent se fonder uniquement sur une application concrète de la loi. Leur évaluation de la nature de l’activité doit être justifiée. Les arguments (dans les discours et dans les décisions ont été classés « à la main » selon un « arbre de classification » qui fait apparaître plusieurs regroupements qui se rattachent au même principe d’évaluation. Ces argumentaires renvoient à plusieurs principes qui reposent sur des rhétoriques à la fois technique (ce que dit la loi mais aussi professionnelle (ce qu’est un journaliste, déontologique (ce que doit être un journaliste ou économique (protéger le journaliste. L’activité journalistique est circonscrite par les décisions rendues par rapport aux activités connexes non journalistiques. Les activités techniques, promotionnelles ou de divertissement en sont exclues. L’interprétation du droit par les acteurs aux trois niveaux de décisions concourt à interroger les fonctions sociales du droit et à montrer comment les acteurs construisent et délimitent les contours de

  3. Interactions comportementales et rythmes d’activité de Glossina palpalis gambiensis et G. tachinoides (Diptera : Glossinidae en galerie forestière au Burkina Faso

    Directory of Open Access Journals (Sweden)

    Salou E.

    2012-08-01

    Full Text Available Glossina palpalis gambiensis et G. tachinoides sont des vecteurs majeurs des trypanosomoses humaines et animales en Afrique de l’Ouest. Sur une partie de leur aire de répartition, elles sont présentes en sympatrie, mais très peu d’informations sont disponibles sur leurs interactions. Nous avons capturé ces deux espèces en utilisant un système attractif composé d’écrans de tissu noir/bleu/ noir muni de film adhésif, afin de retenir toutes les glossines posées et de pouvoir mesurer la hauteur à laquelle elles se sont posées, ainsi que leur rythme d’activité en fonction de l’heure de la journée. L’étude a eu lieu dans deux zones du sud du Burkina Faso : Kartasso en amont du fleuve Mouhoun, où seule G. p. gambiensis est présente, et Folonzo sur le fleuve Comoé, où les deux espèces cohabitent. Les résultats, sur 3 800 glossines capturées, montrent une forte prédominance des captures de G. tachinoides par rapport à G. p. gambiensis à Folonzo (84 % contre 16 % des captures respectivement. À Kartasso, où elle est seule, G. p. gambiensis est capturée en moyenne à 46 cm du sol. À Folonzo, G. p. gambiensis est en moyenne attrapée à une hauteur de 65 cm, et G. tachinoides à 55 cm, ces différences de hauteurs étant significatives. Les femelles sont capturées en général plus haut que les mâles. Les deux espèces montrent un rythme d’activité similaire en fonction de l’heure de capture, mais seule G. p. gambiensis réduit sa hauteur de vol aux heures les plus chaudes. Plusieurs hypothèses, non exclusives, sont évoquées pour expliquer ces hauteurs de capture différentes : la nature de la galerie forestière, un comportement d’approche qui différerait entre espèces, mais aussi la possibilité de phénomènes de compétition interspécifique en relation avec l’utilisation de ressources énergétiques limitées (métabolisme lié à la proline. Sont également discutées les conséquences possibles

  4. Catalytic Activity and Nuclear Radiation; L'activite catalytique et les rayonnements nucleaires; Kataliticheskaya aktivnost' i yadernoe izluchenie; La actividad catalitica y las radiaciones nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Turkevich, J.; Ikawa, T.; Nozaki, F.; Stamires, D. [Princeton University, N.J (United States)

    1963-11-15

    New work is to be presented on the effect of gamma radiation on the catalytic activity of alumina silica gel and decationateii molecular sieves of the Linde Y-type. A graded set of alumina silica coprecipitated gel catalysts have been made with the atomic ratio of alumina silica having ten different equally spaced values. Another set of catalysts was made by partially replacing the sodium of a Linde molecular Y-sieve Na{sub 56}(AlO{sub 2}){sub 56}(SiO{sub 2}){sub 126} by ammonium ion and then decomposing it to drive both the ammonia and the water away to produce a de-cationated position in the sieve: A graded set of such catalysts has been prepared containing varying amounts of these de-cationated sites from zero to 100% of the original sodium content. These two sets of catalysts have been characterized for catalytic activity before and after gamma radiation by studying the kinetics of cumene decomposition into benzene and propylene, the double bond isomerization of butene-1 to butene-2 and the hydrogen/deuterium exchange reaction. The number of active sites was determined by progressive poisoning using quinoline and the activity per site was thus characterized. The materials were also studied by measuring the electron spin resonance of adsorbed electron transfer agents such as triphenylamine, perylen'e and symmetrical diphenyl ethylene. The ability to transfer electrons was found to be parallel to catalytic activity. Proton resonance of adsorbed water was'used to characterize the nature of the catalytic site. (author) [French] Les auteurs se proposent de presenter des recherches nouvelles consacrees aux effets des rayons gamma sur l'activite catalytique du gel de silice et d'alumine et des tamis moleculaires decationises du type Linde Y. Pour cela ils ont prepare une serie de catalyseurs en coprecipitant de la silice et de l'alumine dans des proportions successivement egales a dix nombres regulierement espaces. Ils ont prepare une deuxieme serie de catalyseurs en

  5. Evaluation des activités antioxydante et antibactérienne de l’huile essentielle de Citrus limon (variété Lisbon extraite par hydrodistillation

    Directory of Open Access Journals (Sweden)

    Louiza HIMED

    2016-03-01

    Full Text Available La présente étude porte sur l’évaluation des propriétés antioxydante et antibactérienne de l’huile essentielle de Citrus limon (Lisbon extraite par hydrodistillation et analysée par GC-MS. Le pouvoir antioxydant est évalué par le test au DPPH et le test de blanchissement du β-carotène. L’activité antibactérienne vis-à-vis de neuf souches bactériennes (deux à Gram positif et sept à Gram négatif est évaluée par la méthode des aromatogrammes et la méthode de dilution d’agar pour déterminer les CMI. L’extraction a donné un rendement moyen de 1,34±0,012%. Cette huile essentielle a montré des propriétés antioxydante et antibactérienne importantes. La concentration efficace qui réduit 50 % du DPPH en solution est de 0,09±0,001 µg/ml qui exprime une activité antioxydante plus importante que celle de α-tocopherol, ce résultat a été confirmé par le test de blanchissement du β-carotène. Les bactéries testées ont montré une sensibilité à l’huile essentielle. Ces activités sont liées à la richesse de l’huile essentielle en monoterpènes (81,01%.

  6. Les activités sportives « hybrides » comme réponse à l’accélération des rythmes de vie

    OpenAIRE

    Quidu, Matthieu

    2017-01-01

    Dans le monde contemporain, la majorité des acteurs sociaux fait quotidiennement l’expérience d’une accélération effrénée des rythmes de vie. Cette course contre la montre, qui tend à devenir chronique, semble affecter non seulement la sphère des obligations professionnelles et familiales mais aussi le champ des pratiques de loisirs. Dans un contexte de pénurie temporelle, où le temps est devenu une denrée aussi rare que précieuse, consentir d’y consacrer une partie à des activités non produc...

  7. Biopsie et mesure de l'activité Na+/K+ ATPasique branchiale : validité et impact sur le développement du smolt de saumon Atlantique (Salmo salar L.

    Directory of Open Access Journals (Sweden)

    SIEGLER L.

    1996-01-01

    Full Text Available Une biopsie de fragment de tissu branchial a été effectuée, durant toute la période de smoltification, sur des juvéniles de saumons Atlantique (Salmo salar élevés en pisciculture. Le microdosage de l'activité de la Na+/K+ ATPase branchiale, effectué sur ce fragment de tissu, a été comparé au macrodosage obtenu à partir des branchies entières. Aucune mortalité n'a été observée chez les saumons biopsies dont le taux de croissance (linéaire et pondérale est resté identique à celui des poissons témoins. La bonne correspondance des cinétiques de l'activité enzymatique obtenues par les deux méthodes valide la technique de microdosage et confirme l'absence d'influence sur le développement physiologique ultérieur du smolt biopsie. Nos résultats montrent les modifications envisageables pour améliorer la sensibilité de la méthode. Cette technique est très prometteuse pour l'analyse des populations naturelles

  8. Integrator drawer with pre-adjusted time for the study of decay of very low activity sources; Tiroir integrateur a temps preregle pour l'etude de decroissance des sources de tres faible activite

    Energy Technology Data Exchange (ETDEWEB)

    Couly, J. P.

    1962-07-01

    The author presents a drawer which can be adapted on standard counting assemblies to control the decay of very low activity sources such as samples aimed at atmospheric control. The operation principle relies on charging a tank capacitor with pulses received from a sensor. The resulting voltage is measured by a high input resistance circuit, and then recorded. The tank capacitor is periodically discharged by pulses from a time base circuit. The recording appears under the form of rays. Their length corresponds to the counting rate and the extremity envelope represents the source activity decay curve as a function of time [French] Ce tiroir, pouvant s'adapter sur les ensembles de comptage standards, permet de suivre la decroissance de sources radioactives de tres faible activite (de l'ordre de 10{sup -9} curie) tels que les prelevements de controle atmospherique. Le principe de fonctionnement consiste a charger un condensateur reservoir avec les impulsions recues du detecteur, et prealablement mises en forme. La tension resultante est mesuree par un circuit a grande resistance d'entree puis enregistree a l'aide d'un enregistreur MECI monovoie. Le condensateur reservoir est decharge periodiquement par des impulsions provenant d'un circuit de base de temps. L'enregistrement apparait sous la forme de traits, leur longueur correspond au taux de comptage et l'enveloppe de leur extremite represente la courbe de decroissance de l'activite de la source en fonction du temps. (auteur)

  9. Usability and Workflow Evaluation of "RhEumAtic Disease activitY" (READY). A Mobile Application for Rheumatology Patients and Providers.

    Science.gov (United States)

    Yen, Po-Yin; Lara, Barbara; Lopetegui, Marcelo; Bharat, Aseem; Ardoin, Stacy; Johnson, Bernadette; Mathur, Puneet; Embi, Peter J; Curtis, Jeffrey R

    2016-11-02

    RhEumAtic Disease activitY (READY) is a mobile health (mHealth) application that aims to create a shared platform integrating data from both patients and physicians, with a particular emphasis on arthritis disease activity. We made READY available on an iPad and pilot implemented it at a rheumatology outpatient clinic. We conducted 1) a usability evaluation study to explore patients' and physicians' interactions with READY, and 2) a time motion study (TMS) to observe the clinical workflow before and after the implementation. A total of 33 patients and 15 physicians participated in the usability evaluation. We found usability problems in navigation, data entry, pain assessment, documentation, and instructions along with error messages. Despite these issues, 25 (75,76%) patients reported they liked READY. Physicians provided mixed feedback because they were concerned about the impact of READY on clinical workflow. Six physicians participated in the TMS. We observed 47 patient visits (44.72 hours) in the pre-implementation phase, and 42 patient visits (37.82 hours) in the post-implementation phase. We found that patients spent more time on READY than paper (4.39mins vs. 2.26mins), but overall, READY did not delay the workflow (pre = 52.08 mins vs. post = 45.46 mins). This time difference may be compensated with READY eliminating a workflow step for the staff. Patients preferred READY to paper documents. Many found it easier to input information because of the larger font size and the ease of 'tapping' rather than writing-out or circling answers. Even though patients spent more time on READY than using paper documents, the longer usage of READY was mainly due to when troubleshooting was needed. Most patients did not have problems after receiving initial support from the staff. This study not only enabled improvements to the software but also serves as good reference for other researchers or institutional decision makers who are interested in implementing such a

  10. Utilité de l’exposé magistral en ligne dans la formation universitaire en sciences de l’activité physique

    Directory of Open Access Journals (Sweden)

    Sylvain Turcotte

    2009-09-01

    Full Text Available La formation professionnelle en sciences de l’activité physique à l’université est principalement axée sur l’acquisition de savoirs et de savoir-faire. En particulier, la faible participation des étudiants à la formation théorique est une problématique importante. Le but de cette étude est de vérifier la perception de l’utilité de deux exposés magistraux en ligne dans la formation théorique. Deux formulaires placés en ligne ont permis de recueillir auprès des étudiants les avantages et les inconvénients associés à la mise en œuvre de ce dispositif de formation. Les réponses données par les étudiants sont discutées à la lumière du modèle de St-Yves (1982 qui identifie les conditions internes et externes au déroulement du processus d’enseignement-apprentissage. Plus de 43 des 53 répondants considèrent ces exposés magistraux en ligne utiles. L’avantage majeur réside dans l’accès en tout temps aux exposés. L’inconvénient majeur consiste en l’absence d’interaction sur-le-champ. L’ajout d’un forum de discussion en ligne constitue fort probablement une solution de premier plan.The training of professional specialists in the field of physical activity is based on the acquisition of knowledge and know-how. Practical courses are preferred to theoretical courses. As a result, students often skip lectures. The purpose of this study is to analyze the utility of short online lectures. Two online questionnaires made of closed and open questions respectively were emailed to the students. The advantages and disadvantages are analyzed using the model of St-Yves (1982 who considers the process of teaching and learning as a function of internal and external conditions. More than 43 of the 53 students who answered the questionnaires found the online lectures useful. The major advantage is a 24 hour access to the online lecture and the major disadvantage is the lack of interaction with the teacher. A likely

  11. Performance Measurement of Research Activitities

    DEFF Research Database (Denmark)

    Jakobsen, Morten; Jensen, Tina Blegind; Peyton, Margit Malmmose

    Performance measurements have made their entry into the world of universities. Every research activity is registered in a database and the output measures form the foundation for managerial decisions. The purpose of this chapter is to investigate the registration practices among researchers...... the registrations as a way to be promoted and to legitimise and account for their work; on the other hand, the economic incentives behind ranking lists and bibliographic research indicators threaten the individual researcher's freedom. The findings also show how managers have difficulties in translating back...

  12. Activités culturelles

    CERN Multimedia

    Clubs, AP, Interfon

    2005-01-01

    The Club of the week: The CERN Photo Club Cycling Club Golf Club Ciné-Club : La prophétie des grenouilles Concerts du soir MicroClub Ciné-Club : Together Ciné-Club : Vertigo Evening Conference : Nicole and Serge Roetheli Café des sciences : Les Tribulations d'un jardin en ville Interfon

  13. Measurement of the activity of beta emitting gases using an ionisation chamber; Mesure de l'activite des gaz emetteurs beta au moyen d'une chambre d'ionisation

    Energy Technology Data Exchange (ETDEWEB)

    Lebouleux, P [Commissariat a l' Energie Atomique. Centre d' Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France)

    1962-07-01

    An ionization chamber was developed for measuring directly the activity of a {beta}-emitting gas whatever the gas may be. The following two parameters are defined and determined: p, the average specific ionization produced by a {beta} disintegration, and i, the average {beta} path in the chamber. It was shown, during the determination of i, that the {beta} particles are reflected on the walls of the ionization chamber when the latter are made of a high atomic number material. It was possible to eliminate this effect by constructing an electrode chamber made of graphite. With this chamber a direct measurement can be made of the activity of a gaseous {beta} emitter with a precision of about {+-}10%. Some applications are given of the graphite electrode chamber (calibration of the chambers built industrially and determination of the activation cross section of a gaseous emitter). It was possible to determine the activation cross section of {sup 134}Xe; a value of 0.18 {+-} 0.03 barn was found. (author) [French] Le but de l'etude est de realiser une chambre d'ionisation permettant d'effectuer une mesure directe de l'activite d'un gaz emetteur {beta} quel que soit l'emetteur considere. On definit et l'on determine les deux parametres suivants: p: ionisation specifique moyenne produite par une desintegration {beta}. La determination est effectuee par une methode graphique, i: moyenne des parcours des {beta} dans la chambre. La determination est effectuee experimentalement par introduction dans la chambre d'un gaz radioactif dont on peut calculer l'activite. On a mis en evidence, au cours de la determination de i, la reflexion des particules {beta} sur les parois des chambres d'ionisation lorsque celles-ci sont constituees d'un materiau de numero atomique eleve. La construction d'une chambre a electrodes de graphite nous a permis d'eliminer ce phenomene. Avec cette chambre, on effectue une mesure directe de l'activite d'un emetteur {beta} gazeux avec une precision de l

  14. REFERENTIELS D’ACTIVITE ET DE COMPETENCES EN KINESITHERAPIE: BASES DE L’INGENIERIE ET DE LA RECONNAISSANCE DE LA PROFESSION

    Directory of Open Access Journals (Sweden)

    Lacramioara Manole

    2009-12-01

    Full Text Available L’utilité et la valeur ajoutée de la kinésithérapie pour la société roumaine renvoie au projet de société de notre pays et à la place qu’elle réserve à la santé. Aujourd’hui il s’agit de proposer un «projet de la Kinésithérapie » pour notre société en retour du projet que la société réserve à la Kinésithérapie.Cette question d’intérêt général doit être construite en tenant compte de tous les acteurs, décideurs, chercheurs et plus particulièrement des patients.Nous voyons tous les jours notre société bouger et en même temps la conception de la santé change. Si pendant longtemps la santé se caractérisait par l’absence de maladies’ aujourd’hui nous voyons émerger une vision plus subjective, plus individuelle fondée sur de « nouveaux rapports à la vie ». Nous constatons que la santé est devenue une véritable obsession de l’homme moderne. Les progrès technologiques, l’accroissement de l’espérance de vie et l’envie du mieux-être ont déplacé la frontière entre le normal et le pathologique.Pour notre société l’objectif de la Kinésithérapie c’est de ré-insèrer le patient dans son contexte familial et professionnel afin que lui-même puisse assurer ses missions d’acteur social.La question est alors de savoir ce que fait le Kinésithérapeute - référentiel d’activités - et ce que lasociété attend du Kinésithérapeute - référentiel de compétences – pour s’inscrire dans cette nouvelle vision de la Santé.Pour répondre à cette question nous proposons une approche sociologique scientifique par la description des référentiels qui sont à la base de la Kinésithérapie. Ces référentiels sont « des schémas d’intelligibilité construits en vue d’une identification à partir d’une analyse de situation ». ( J. Ardoino, France .

  15. Evaluation de l'impact des activités anthropiques sur les organismes aquatiques dulçaquicoles. Méthodes et modèles pour la mesure de l'impact des rejets chimiques

    OpenAIRE

    Garric, J.

    2008-01-01

    / Avant toute chose, je crois nécessaire de replacer le contexte de mes activités de chercheur à la fois au sein de l'organisme où j'ai réalisé ma carrière, mais également dans le cadre du domaine où j'ai travaillé, l'écotoxicologie. Après une formation en Sciences et Techniques de l'Eau à la faculté des Science de Montpellier (USTL) dans laquelle étaient étroitement associées des formations en chimie et en biologie, j'ai obtenu en 1980 un doctorat en Ecotoxicologie et Chimie de l'Environneme...

  16. Delphine Naudier (dir.), « Genre et activité littéraire. Les écrivaines francophones », Sociétés contemporaines

    OpenAIRE

    Avenel, Céline

    2011-01-01

    Les trois articles du dossier « Genre et activité littéraire : les écrivaines francophones » apportent un éclairage singulier sur le quotidien des écrivaines et toutes les sortes de négociations et transgressions des rôles de sexe que l'écriture peut engendrer pour une femme. L'article de V. Gemis analyse, avec l'apport des études de genre ainsi que la sociologie de la littérature, la complexité des positions adoptées par les femmes de lettres belges, à travers l'interrelation du collectif et...

  17. Evaluation de la réactivité chimique et de la montée en cohésion au jeune âge des matériaux bitumineux recyclés à froid

    OpenAIRE

    ODIE, L; NAUDAT, C; BROSSEAUD, Y; BEGHIN, A; PLACIN, F; ECKMANN, B; DELFOSSE, F

    2006-01-01

    Une des taches du programme de recherche européen SCORE était l'optimisation de la formulation des matériaux bitumineux recyclés à froid. Pour atteindre cet objectif, le LRPC de Saint-Brieuc a développé deux méthodes d'essais qui permettent de mieux appréhender la réactivité chimique entre les fraisats d'enrobé et les émulsions cationiques. La première méthode consiste en une extraction à l'eau acidifiée des fraisats d'enrobés. Le pH de la solution est mesuré tout au long de la procédure d'ex...

  18. Etude de l’activité anti-inflammatoire des phosphatidyl-inositol mannosides : composants naturels de la paroi des mycobactéries et dérivés synthétiques

    OpenAIRE

    Rose , Stéphanie

    2012-01-01

    Les phosphatidyl-myo-inositol mannosides sont des précurseurs biosynthétiques de lipoarabinomannanes et lipomanannes qui sont des composants de la paroi des bactéries du genre Mycobacterium. Les phosphatidyl-myo-inositol dimannosides (PIM2) et hexamannosides (PIM6) sont les deux formes les plus abondantes de PIM chez les M. tuberculosis et M.bovis (BCG). La synthèse complète des différents PIMs a été rapportée. Nous avons déjà démontré que les fractions de PIM6 ont une activité inhibitrice su...

  19. Enquêtes, observations et analyse de l'activité auprès de conducteurs âgés : comprendre les obstacles pour mieux agir (parcours critique, positions théoriques et perspectives de recherche)

    OpenAIRE

    GABAUDE, Catherine

    2016-01-01

    Afin de préserver l'autonomie et la qualité de vie de nos aînés, il est indispensable de concilier des exigences de sécurité et de mobilité. L'action publique en sécurité routière peut être renouvelée en étant sensibilisée à la question de la sécurité gérée, c'est à dire en procédant à une logique de recherche des rationalités sous-jacentes aux comportements observés. Ceci nécessite d'étudier la sécurité en action à partir de l'analyse de l'activité de conduite de nos ainés. La plupart des co...

  20. Modalités de collaboration entre étudiants et constitution d'une communauté dans une activité à distance Students' collaborative processes and community building during an online activity

    Directory of Open Access Journals (Sweden)

    Charlotte Dejean-Thircuir

    2008-06-01

    Full Text Available Cette étude s'inscrit dans le champ de la communication pédagogique médiatisée par ordinateur et s'intéresse aux échanges entre étudiants engagés dans la réalisation d'une tâche collaborative, dans le cadre d'un master 2 professionnel de didactique des langues, à distance. L'analyse des interactions d'un groupe d'étudiants, au moyen d'outils issus de la pragmatique linguistique interactionniste et de l'analyse conversationnelle, permet d'identifier certaines pratiques langagières et formes d'activités communicationnelles qui soutiennent le processus collaboratif et favorisent la constitution d'une communauté en ligne. En se focalisant sur l'étude d'un groupe particulièrement collaboratif, il s'agit de mieux comprendre les processus de collaboration afin de proposer des pistes de réflexion pour les concepteurs et tuteurs de ce type d'activité en ligne.This study belongs to the field of computer mediated pedagogical communication and focuses on students' interactions while engaged in a collaborative task as part of a professional master 2 program in online language education. Using a set of analytic tools grounded on a pragmatic and an interactionist framework, the researcher identified some linguistic practices and communicative activities that foster the collaborative process and support the construction of an online community. By focusing on a particularly collaborative group, the researcher had a better understanding of the collaborative processes involved in the completion of such tasks and was able to suggest directions for further reflection to designers and instructors of similar online activities.

  1. Activité antioxydante et anti-candidosique de l’huile essentielle de Laurus nobilis L. provenant de la région d’El Kala (Nord–Est Algérien

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    Amira OUIBRAHIM

    2015-12-01

    Full Text Available L’huile essentielle extraite de Laurus nobilis L. par hydrodistillation a fourni un rendement de 0,7%. L’analyse de l’huile essentielle par CG/SM a permis l’identification de 17 composants, principalement des monoterpènes. 1,8 cinéole (36,31%, β-linalol (22.52%, eugenol-methylether (9.17% et camphene (7.37% ont constitué les composés majoritaires avec un total de 96,95%. L’activité antioxydante in vitro a été évaluée à travers trois méthodes: le test de piégeage du radical libre DPPH avec un IC50 de 1,55 ± 0,14 mg/ml ; le test de blanchiment de β-carotène qui a permis d’enregistrer un pourcentage d’inhibition de la peroxydation lipidique de 41,97% et finalement l’évaluation du pouvoir réducteur qui s’est avéré faible par rapport à celui de l’acide ascorbique. L’activité anticantidosique a été testée sur 4 souches de Candida albicans en utilisant la méthode de dilution en milieu gélosé. Les quatre souches ont montré une sensibilité avec une CMI de 0,68 mg/ml pour les souches d’origine urinaire et vaginale et 1.08 mg/ml pour les Candida d’origine bucco-nasale. L’huile essentielle de Laurus nobilis originaire de la région d’El Kala a manifesté des propriétés antioxidantes modérées et des propriétés anticandidosiques.

  2. Amount and activity of fission products which will be obtainable in France in the immediate future taking into account the development of atomic energy; Quantite et activite des produits de fission abtenus en France dans les annees a venir compte tenu du developpement de l'energie atomique

    Energy Technology Data Exchange (ETDEWEB)

    Guirlet, J; Lavie, J M [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

    1960-07-01

    By using the Wigner and Way formula, the activity of the complex mixture of fission products produced in a pile may be estimated theoretically in advance. This study was carried out on the basis of forecasts, in the case of France for the production of electricity of atomic origin up to the year 1975. The uranium was assumed to be in the pile during periods of three months and six months. It is also possible to find the activity of a particular fission product and to give its decay rate. The element chosen is strontium for a three months' activation period. Each set of curves gives at any moment the total activity accumulated, and the characteristic activity of the fission products corresponding to a given half-life. (author) [French] En utilisant la formule de Wigner et Way, il est possible de prevoir theoriquement l'activite du melange complexe de produits de fission provenant d'une pile. L'etude a ete faite en tenant compte de previsions, en ce qui concerne la France, de la production d'electricite d'origine atomique jusqu'en 1975. On a suppose des temps de sejour en pile de l'uranium de trois mois et de six mois. Il est possible egalement de trouver l'activite d'un produit de fission particulier, et de donner sa decroissance. Le corps choisi est le strontium pour un temps d'activation de trois mois. Chaque ensemble de courbes donne a tout instant l'activite totale accumulee, et l'activite propre des produits de fission correspondant a une periode donnee. (auteur)

  3. Control of pile power by measurement of the activity of the cooling fluid. The particular case of EL3; Controle de la puissance d'une pile par la mesure de l'activite du fluide de refroidissement. Cas particulier de EL 3

    Energy Technology Data Exchange (ETDEWEB)

    Lalere, J [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

    1959-07-01

    In a high flux pile the presence of local absorbers makes the power difficult to measure. In any case thermodynamic measurements are sometimes not very accurate. Another possible method could be the measurement of the cooling fluid activity. This has been tried on the heavy water circuit of EL3. In the first part of this report we give some qualitative indications of the various activities present in the heavy water in circulation. After this, the activity of the element chosen has been calculated. Finally, the results obtained from EL3 are given. (author) [French] Dans une pile a haut flux, la presence d'absorbeurs localises rend la mesure de la puissance difficile. Les mesures thermodynamiques sont par ailleurs parfois peu precises. Un autre moyen pourrait etre la mesure de l'activite du fluide de refroidissement. C'est ce qui a ete essaye sur le circuit eau lourde de EL3. Dans une premiere partie, nous donnons quelques indications qualitatives sur les diverses activites presentes dans l'eau lourde en circulation. Ensuite, nous avons fait le calcul de l'activite de l'element choisi. Enfin, nous avons mentionne les resultats qui ont ete obtenus EL3. (auteur)

  4. Influence du cadmium (Cd++ sur l'activité biologique du récepteur des oestrogènes de la truite arc-en-ciel (Oncorhynchus mykiss

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    LE GUEVEL R.

    1998-07-01

    Full Text Available De nombreuses publications font l'état de l'action négative du cadmium (Cd++ sur la vitellogenèse chez les poissons. Le mécanisme d'action de ce métal n'étant pas clairement établi, une étude a été entreprise afin de déterminer si l'effet du cadmium passait par une action sur l'activité biologique du récepteur des oestrogènes de la truite arc-en-ciel (rtER. Cette étude a été réalisée dans un système de levures recombinantes, exprimant de manière stable rtER, et dans des hépatocytes de truite en culture primaire. Dans la levure, rtER activé par l'oestradiol (E2 contrôle spécifiquement l'expression d'un gène rapporteur codant pour l'enzyme ß-Galactosidase. Une concentration en Cd++ de 10 µM diminue de 45 % l'expression stimulée par l'oestradiol du gène rapporteur dans les levures recombinantes. De même, dans les hépatocytes, l'expression du gène de la vitellogénine (VTG, gène sous le contrôle positif de E2, est diminuée de 65 %. Le cadmium n'affecte pas la liaison de E2 à son récepteur et seule l'activité hormonodépendante est affectée par ce métal. Les résultats de cette étude montrent que l'effet négatif du cadmium sur l'action de l'oestradiol passe vraisemblablement par une action directe de ce métal sur la fonction de transactivation hormono-dépendante de rtER.

  5. Étude qualitative sur les perceptions à propos de la capacité des organisations à promouvoir l’activité physique au Canada et à propos de l’influence de ParticipACTION cinq ans après sa relance

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    Subha Ramanathan

    2018-01-01

    Full Text Available Introduction. ParticipACTION est un organisme canadien de communication et de marketing social faisant la promotion de l’activité physique qui a été relancé en 2007. Notre étude visait à évaluer de manière qualitative le pouvoir d’action des organisations canadiennes en matière de promotion de l’activité physique ainsi que l’influence de ParticipACTION sur ce pouvoir cinq ans après sa relance. Méthodologie. Des entrevues téléphoniques semi-structurées ont été réalisées auprès de 44 informateurs clés sélectionnés par échantillonnage dirigé. Les informateurs étaient représentatifs d’organismes nationaux, provinciaux et locaux ayant un mandat en matière de promotion de l’activité physique. Les données tirées des entrevues ont été analysées par thèmes. Résultats. Depuis la relance de ParticipACTION, le pouvoir d’action en matière de partenariats et de collaborations ainsi que le climat général dans le domaine de la promotion de l’activité physique se sont améliorés. Bien que diverses contraintes financières aient réduit la capacité des organisations à remplir leur mandat, leur impact a été atténué par des facteurs internes comme la présence d’employés compétents et les partenariats ainsi que par des facteurs externes comme les progrès technologiques dans les communications et les échanges d’information. Les avis étaient mitigés en ce qui concerne la contribution de ParticipACTION à l’amélioration de ce pouvoir d’action. Bien que ParticipACTION ait attiré l’attention sur l’inactivité, sa contribution a surtout été perçue comme complémentaire aux activités déjà en place. Certains organismes ont considéré que la relance de ParticipACTION avait accru la compétition pour le financement et l’accès aux médias populaires, tandis que d’autres étaient d’avis qu’il s’agissait d’une opportunité d’établir des partenariats officiels pour des

  6. The CO{sub 2} cooling gas for the reactors G2/G3 (leaking, analysis, activity); Le CO{sub 2} de refroidissement des reacteurs G2/G3 (fuites, analyse, activite)

    Energy Technology Data Exchange (ETDEWEB)

    Meiffren, J; Dupay, F [Commissariat a l' Energie Atomique, Centre de Production de Plutonium, Marcoule (France). Centre d' Etudes Nucleaires

    1965-07-01

    The main objective of this study is to publicise the data obtained during five years operation of the reactor G2 and G3 at Marcoule as far as the cooling gas is concerned, from storage of reserves up to its slow escape into the atmosphere, and including all the stages of its practical use, its chemical examination, its nuclear behaviour and its possible physicochemical transformation. This work can not only yield information about the operations carried out at Marcoule but can also provide useful suggestions for improving the sealing and for decreasing the activity of the pressurized gas circuits in reactors similar to G2/G3. (authors) [French] Le but principal de cette etude est de diffuser les connaissances acquises au cours de cinq annees d'exploitation des reacteurs G2 et G3 de Marcoule en ce qui concerne le gaz de refroidissement, depuis son stockage d'appoint jusqu'a son echappement lent dans l'atmosphere, en passant par tous les stades de son utilisation pratique, de son etude chimique, de son comportement nucleaire, eventuellement de ses transformations physico-chimiques. Cette etude peut, non seulement renseigner sur les operations effectuees couramment a Marcoule, mais egalement donner des suggestions interessantes pour l'amelioration de l'etancheite et la diminution de l'activite des circuits de gaz en pression dans des reacteurs analogues a G2/G3. (auteurs)

  7. La notion de régulation dans l’analyse de l’activité The concept of regulation in activity analysis La nocion de regulacion en el analisis de la actividad

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    Jacques Leplat

    2006-05-01

    Full Text Available Le présent article s’attache à montrer le bénéfice que peut tirer l’analyse de l’activité d’une meilleure connaissance de la notion de régulation souvent mal définie. À cette fin, il essaiera surtout de suggérer quelques pistes de travail et des moyens de les poursuivre. Il commencera par dégager quelques traits essentiels de cette notion et en proposera un modèle. Cette notion sera aussi articulée à celle de règle. La deuxième partie montre comment le modèle de régulation proposé permet d’éclairer l’analyse de l’activité, en même temps que celle-ci amène à enrichir ce modèle. Elle fera apparaître, notamment, la multiplicité des boucles de régulation susceptibles d’être exploitées dans l’exécution d’une tâche et le rôle important que peut jouer la métarégulation dans l’organisation de l’activité. La troisième partie, plus concrète, examinera quelques types d’usage de la régulation dans des études d’orientation ergonomique. Elle en donnera un petit historique, puis abordera des thèmes autour desquels se sont organisées de telles études, en particulier, la place des cadres temporels, les activités collectives et la formation. La conclusion reviendra sur l’intérêt d’un bon usage de la notion de régulation et indiquera quelques limites à son utilisation.The following text aims to show the benefit for activity analysis obtained through a better knowledge of the concept of regulation, which is often poorly defined. To achieve this, it above all tries to suggest some avenues of study and some means for following these avenues. It begins by identifying some essential characteristics of this concept, and proposes a model for it. This concept will also be articulated with that of a rule. The second part shows how the proposed regulation model elucidates activity analysis at the same time that the latter enriches this model. It reveals the many regulation loops that can be used

  8. A Study of the Radioprotective Activity of the Imidazole Nucleus and Some of Its Derivatives; Etude de l'activite radioprotectrice du noyau imidazole et de quelquesuns de ses derives

    Energy Technology Data Exchange (ETDEWEB)

    Rinaldi, R; Bernard, Y [Commissariat a l' Energie Atomique. Centre d' Etudes Nucleaires, 38 - Grenoble (France)

    1962-07-01

    A study was made of the radioprotective properties of 8 compounds derived from imidazole. The effectiveness of the compounds was tested in mice exposed to a lethal dose of x radiation. Results showed that imidazole afforded protection to about 85% of the animals. Little protection was afforded by imidazoline and thione-imidazoline compounds in spite of the existence of a free sulfhydryl group in these compounds. (authors) [French] Cette etude a ete consacree a la determination des proprietes radioprotectrices eventuelles de huit composes derives de l'imidazole. Ces substances ont ete, soit synthetisees, soit obtenues dans le commerce. Leur efficacite a ete mise en evidence par le pourcentage de survie obtenu chez des souris soumises a une dose mortelle de rayons X. Les resultats ont fait apparaitre: - l'activite remarquable de l'imidazole qui protege environ 85 pour cent des animaux; - la protection faible ou nulle obtenue avec les imidazolinones et les thione-imidazolines, malgre la presence dans la molecule de ces dernieres d'un groupement sulfhydrile libre. (auteurs)

  9. The calibration of an end-window counter LCT 13A7 for the measurement of {beta}-activity; Etalonnage d'un compteur cloche LCT 13A7 pour les mesures d'activite {beta}

    Energy Technology Data Exchange (ETDEWEB)

    Barthoux, A; Imbert, L [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1961-07-01

    The study shows the principal corrections to be applied in the case of plane circular sources made up of a mixture of radio-elements known or unknown. We define the region of activity in which this type of counter can usefully be employed. An experimental curve of the apparent exponential absorption coefficient for {beta} rays in matter is given, thus making it possible to correct for self-absorption and if necessary to define the apparent energy of the radiation. Finally, the study calculates the error to be expected with different counters of the same type. (author) [French] L'etude met en evidence les principales corrections a apporter dans le cas de sources planes circulaires constituees par un melange de radioelements connus ou inconnus. On definit le domaine d'activite dans lequel ce type de compteur peut etre raisonnablement utilise. Une courbe experimentale du coefficient d'absorption exponentielle apparente des {beta} dans la matiere est donnee, permettant d'effectuer des corrections d'autoabsorption et eventuellement de definir l'energie apparente du rayonnement. Enfin, l'etude determine l'erreur a envisager avec differents compteurs du meme type. (auteur)

  10. Etude de l’activité antibactérienne des huiles essentielles d’Inula viscosa, Salvia officinalis et Laurus nobilis de la région de Bejaia

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    Nawel Kheyar

    2014-02-01

    Full Text Available Dans cette étude, l’activité antibactérienne des huiles essentielles d’Inula viscosa, Salvia officinalis et Laurus nobilis a été évaluée in vitro par la méthode de diffusion sur gélose contre des souches de référence et multirésistante : il s’agit de Staphylococcus aureus (ATCC 6538, Pseudomonas aeruginosa (ATCC 27853, Escherichia coli (NAR, Klebsiella pneumoniae (E47 et Listeria innocua (CLIP 74915. Pseudomonas aeruginosa a été l’espèce la plus résistante, cependant, Staphylococcus aureus s’est montrée la plus sensible aux huiles testées. Les résultats de l’analyse chimique de la composition de l’huile Inula viscosa par chromatographie en phase gazeuse indiquent la richesse de cette dernière en thymol (6,93% and carvacrol (2,27%, ce qui pourrait être à l’origine des résultats observés.

  11. Spontaneous CFS rhinorrhoea: role of computerized opaque cisternography; Rhinorrhee cerebro-spinale spontanee: place de la cisternographie opaque computerisee

    Energy Technology Data Exchange (ETDEWEB)

    Jouini, S.; Saidane, S.; Maamouri, M.; Shili, S.; Menif, E.; Ben Hajel, H.; El Khedim, A.; Ben Jaafar, M.; Belkahia, A. [Hopital La Rabtan Tunis (Tunisia)

    1995-12-31

    Spontaneous CSF rhinorrhoea, secondary to trauma in the great majority of cases, is very rare (3-4%). The authors report a case of spontaneous CSF rhinorrhoea secondary to an ethmoidal osteo-dural defect, diagnosed by digital cisternography and confirmed by the surgical operation. The value of digital opaque cisternography and its place in the diagnostic arsenal are discussed. (authors). 12 refs., 3 figs.

  12. Division des activités économiques entre chinois, 'injertos' et métis dans la communauté d'Acos 1920-1950. Vallée de Chancay - Pérou

    Directory of Open Access Journals (Sweden)

    1981-01-01

    Full Text Available Ce second article traitant de la micro-colonie chinoise établie depuis 1870 dans la communauté d'Acos (Vallée de Chancay s'attache cette fois à montrer la division nette des activités économiques pratiquées d'un côté par les Chinois et métis chinois ou 'injertos' et les membres des 'familles dites légitimes' qui détenaient le pouvoir depuis plusieurs siècles. Au départ il s'agit d'une opposition entre deux formes de pouvoir: le pouvoir foncier des métis blancs acosinos et le pouvoir économique des Chinois et 'injertos'. Entre 1920 et 1950, la puissance des Chinois et le retour après un temps d'intégration (cf article précédent à un certain individualisme furent autant de facteurs favorisant racisme et tension. Après avoir stimulé par leur présence et leurs activités l'économie locale, les Chinois abandonnèrent la place et laissèrent les familles 'légitimes' reprendre pouvoir foncier et pouvoir économique. Este segundo artículo relativo a la micro colonia china establecida desde 1870 en la Comunidad de Acos (Valle de Chancay trata esta vez de mostrar la clara división de las actividades económicas practicadas de un lado por los Chinos y mestizos Chinos o 'Injertos' y por otro lado por los miembros de las familias llamadas 'legítimas' que tenían el poder desde varios siglos. Al principio se trata de un antagonismo entre dos formas de poder: el poder de los Mestizos blancos de Acos basado en la propiedad de las tierras y el poder económico de los chinos e Injertos. De 1920 a 1950, el poder de los chinos y la vuelta después de una etapa de integración (cf artículo anterior a un cierto individualismo, fueron factores que favorecieron el racismo y la tensión. Después de haber impulsado por su presencia y sus actividades la economía local, los chinos abandonaron el lugar y dejaron que las familias 'legítimas' retomaran la propiedad de la tierra y un poder económico de origen comercial. This second article on

  13. Urgence et activité débordée dans le grand commerce Emergency and overflow activity in mass retailing Urgencia y actividad desbordada en el comercio masivo

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    Julien Choquet

    2012-12-01

    Full Text Available Le grand commerce est un secteur d’activité où la performance économique se mesure à l’échelle des volumes de marchandise distribuée. Derrière cet indicateur se cachent des politiques de gestion des ressources humaines largement déterminées par les questions de productivité du travail. En effet, ces entreprises commerciales ont à résoudre une équation majeure consistant à placer la bonne quantité de personnel au bon endroit et au bon moment, du fait de la forte irrégularité des affluences de la clientèle dans leurs points de vente. L’usage du temps de travail acheté constitue donc une variable fondamentale dans la maîtrise des coûts de production. Les solutions choisies ne sont pas sans incidences sur les conditions temporelles d’exécution du travail des salariés dans les magasins. Leur activité oscille entre intensité et débordement, ce qui impacte fortement leur manière d’appréhender leurs tâches, leurs relations avec la clientèle et leur capacité à vivre sereinement leur travail.Mass retail is a sector where economic performance tends to be measured by the volume of goods distributed – an indicator built upon human resource management policies that are largely rooted in the productivity of labour. Commercial companies are constantly seeking to move large numbers of staff members to the right place at the right time, a complicated exercise given customers’ irregular presence at points of sale. The way that companies use the working time that they have purchased therefore constitutes a key variable in controlling production costs. The solutions they choose will affect the temporal conditions determining employees’ in-store execution of tasks. Such activities tend to fluctuate between intensity and overflow. In turn, this strongly affects how staff members apprehend tasks; relations with customers; and their sense of serenity at work.El comercio masivo es un sector de actividad cuyos resultados

  14. Les temps sexués de l’activité : la temporalité au principe du genre ? Gendered working times: Temporality at the inception of Gender?

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    Marc Bessin

    2009-09-01

    Full Text Available L’article présente la problématique de ce dossier sur les temps sexués de l’activité. Il s’agit d’aborder l’activité − dans une acception large du travail, rémunéré ou non, plus ou moins visible, dans son articulation avec l’ensemble des sphères de la vie − comme miroir de l’imbrication du genre et des temporalités. Deux postures y contribuent. La plus classique consiste en une sociographie de la division sexuelle du travail où le temps sert à mesurer les inégalités. Il faut la compléter par une deuxième qui interroge les catégories temporelles : on montre ainsi que les temporalités sont au principe du système de genre. Ici le temps, appréhendé dans sa diversité et notamment ses dimensions qualitatives, résulte des pratiques et est posé comme producteur de rapports de pouvoir. La domination masculine repose sur la construction du rapport au temps : la naturalisation des compétences dites féminines s’appuie sur une temporalité basée sur le rapport à l’autre et l’engagement dans la durée. Les perspectives théoriques autour du care et de la présence sociale permettent de montrer les implications morales de l’engagement pour autrui dans ses dimensions temporelles (sens de l’anticipation, disponibilité à l’autre, ancrage dans la durée, temporalisation. Les auteurs exposent ensuite la manière dont chacune des contributions du numéro alimente cette discussion.We introduce this issue on the gendered times of work, broadly understood – i.e. paid or unpaid, and more or less visible – which, in conjunction with the other spheres of life, mirror the intricate interplay of Gender and Temporality. Two positions are highlighted. The more classical one is a Sociographics of the gendered division of labour in which time serves to measure existing inequalities. Complementary to it is a second posture that questions temporal categories: the confrontation shows that temporality is at the

  15. ParticipACTION, cinq ans après sa relance : enquête quantitative sur son rayonnement et sur le pouvoir d'action des organisations au Canada en matière d’initiatives consacrées à l’activité physique

    Directory of Open Access Journals (Sweden)

    Guy Faulkner

    2018-01-01

    Full Text Available Introduction. ParticipACTION est un organisme canadien relancé en 2007 dédié à la communication et au marketing social en matière d’activité physique. Cette étude porte sur le pouvoir d'action des organismes canadiens dans l'adoption, la mise en oeuvre et la promotion des initiatives en ce domaine. Nos objectifs étaient de comparer les résultats de base (2008 avec les résultats de suivi (2013 en ce qui concerne (1 la connaissance de ParticipACTION, (2 la capacité d'un organisme à adopter, à mettre en oeuvre et à promouvoir des initiatives d’activité physique et (3 les différences potentielles en matière de pouvoir d'action d'une organisation en fonction de sa taille, de son secteur et de son mandat ainsi que (4 d’évaluer la perception de ParticipACTION cinq ans après sa relance. Méthodologie. Dans le cadre de cette étude transversale, des représentants d’organismes locaux, provinciaux, territoriaux et nationaux ont rempli un questionnaire en ligne visant à évaluer la capacité de leur organisme à adopter, à mettre en oeuvre et à promouvoir des initiatives d’activité physique. Nous avons utilisé des méthodes de statistique descriptive et des analyses de variance à un facteur pour répondre à nos objectifs. Résultats. Le taux de réponse correspondant aux personnes ayant ouvert le courriel d’invitation à répondre au sondage et ayant consenti à y participer était de 40,6 % (685/1 688. Au total, 540 questionnaires de sondage ont été remplis. Le taux de connaissance de ParticipACTION, qui se chiffrait à 54,6 % lors de l’étude initiale, avait atteint 93,9 % au moment du suivi (objectif 1. Tant les résultats initiaux que les résultats de suivi ont fait état d’un pouvoir d'action important des organismes dans l'adoption, la mise en oeuvre et la promotion d'initiatives d’activité physique (objectif 2, avec cependant de légères variations en fonction du secteur et du mandat de chaque

  16. Rapid evaluation of the neutron dose following a criticality accident by measurement of {sup 24}Na activity; Evaluation rapide de la dose de neutrons a la suite d'un accident de criticite par mesure de l'activite de {sup 24}Na

    Energy Technology Data Exchange (ETDEWEB)

    Estournel, R [Centre de Production de Plutonium de Marcoule, Service de Protection contre les Rayonnements, 30 (France); Henry, Ph [Centre de Production de Plutonium de Marcoule, Section Medicale et Sociale, 30 (France); Beau, P; Ergas, A [Commissariat a l' Energie Atomique, Service d' Hygiene Atomique, Dept. de la Protection Sanitaire, Chusclan, (France)

    1966-07-01

    By external measurement of the gamma activity of {sup 24}Na induced in the human organs by a neutron flux during a criticality accident, it is possible to evaluate the personal dose received. Detectors designed for everyday use in health physics can be applied to these measurements, and this is described in the first part of the work. The response of a certain number of induced-activity detectors is presented. The induced activity-dose relationship is studied theoretically in the second part taking into account the neutron spectrum to which the individual has been subjected. The characteristic spectra of three possible types of accident have been used for deducing this relationship. The results obtained show that the method is sufficiently sensitive for present purposes. The accuracy of this method for calculating the dose received during an experiment is discussed. (authors) [French] La mesure par detection externe de l'activite gamma du sodium 24 induit dans l'organisme humain par un flux de neutrons lors d'un accident de criticite rend possible l'evaluation de la dose recue par un individu irradie. L'utilisation de detecteurs d'un emploi courant en radioprotection fait l'objet d'une experimentation qui constitue la premiere partie de cette etude. La reponse d'un certain nombre de detecteurs a une activite induite connue est presentee. La relation dose-activite induite, est etudiee, de maniere theorique, dans la seconde partie, correlativement au spectre des neutrons qui ont atteint l'individu irradie. Les spectres caracteristiques de trois types d'accidents possibles ont ete retenus pour l'etablissement de ces relations. Les resultats obtenus montrent que la methode satisfait avec une sensibilite suffisante au but recherche. La precision avec laquelle on peut ainsi calculer la dose recue au cours d'un accident de criticite est discutee. (auteurs)

  17. 工作记忆训练对脑卒中患者大脑功能激活的影响%Effects of Working Memory Training on Brain Functional Activition for Stroke Patients

    Institute of Scientific and Technical Information of China (English)

    陈正威; 张璞; 恽晓平

    2015-01-01

    目的:研究计算机化工作记忆训练对脑卒中患者工作记忆及大脑功能激活的影响。方法3例脑卒中患者作为训练组,10名健康成年被试作为正常对照组。训练组接受4周工作记忆训练,对照组不接受任何训练。训练前及训练后各被试均接受认知心理行为测验和神经影像学测验(任务态fMRI)。结果工作记忆训练可有效提升脑卒中患者工作记忆、流体智力及注意力水平(P<0.001);工作记忆训练可改善异常功能激活模式并使功能激活网络发生重组。结论工作记忆训练可作为有效的康复干预措施用于脑卒中患者的认知功能康复。%Objective To explore the effects of computerized working memory training on working memory and brain functional activi-tion for stroke paitents. Methods 3 stroke patients voluntarily joined in the study, 10 healthy adults were recruited as control group. The pa-tients received computerized working memory training for 4 weeks. Cognitive psychological tests (the n-back task, Stroop task and Raven`s Advanced Progressive Matrices task) and neuroimaging test (task-state functional magnetic resonance imaging) were administered before and after treatment. Results Working memory training significantly improved the working memory, fluid intelligence and attention for each trained patient (P<0.001), and could renovate the abnormal functional activity model and reorganize the functional brain network. Conclu-sion Computerized working memory could be used as an effective cognitive rehabilitation intervention for stroke patients.

  18. Correspondence Between Structure and Reactivity During Hydrothermal Conversion of Lignocellulosic Macromolecules Relation entre la structure ét la réactivité en conversion hydrothermale des macromolécules de lignocellulosique

    Directory of Open Access Journals (Sweden)

    Barbier J.

    2013-09-01

    Full Text Available In this study, reaction pathway of a woody biomass under hydrothermal conditions is investigated in order to further understand reactions that occur during the thermochemical liquefaction of a lignocellulosic biomass. A multitechnique analytical approach combining chromatographic and spectroscopic techniques has been developed in order to characterize both chemical structure and molecular weight of the products. From our experiments, we can assume that the holocellulosic and the ligneous fractions of biomass have different reactivity under hydrothermal condition. Although hydrothermal conversion of holocellulose and lignin occur both according to a complex pathway composed of competitive fragmentation and condensation reactions, holocellulose reacts first by total fragmentation to low molecular weight compounds followed by the condensation of the fragment to heavy molecular weight compounds, whereas lignin reacts essentially by partial depolymerisation. Since compounds produced from both the holocellulosic and the ligneous fraction are together in the reaction medium then they condense each other during the conversion of lignocellulosic material. Ce travail porte sur l’étude des voies réactionnelles accompagnant la liquéfaction thermochimique du bois et de ses constituants lignocellulosiques lors d’un traitement hydrothermal. Pour ce faire, une approche analytique multi-technique originale combinant des méthodes chromatographiques et spectroscopiques complémentaires a été développée afin de caractériser les structures et les masses moléculaires des produits. Les résultats obtenus montrent que la fraction holocellulosique et la fraction ligneuse de la biomasse ont des réactivités très différentes. Bien que les deux matériaux réagissent selon des schémas réactionnels complexes faisant intervenir de nombreuses voies de fragmentation et de condensation compétitives, la fraction holocellulosique réagit par une première

  19. Une genese du «parler de soi » du deja-la a l’evocation de l’absent dans l’activite dialogique du tout jeune enfant

    Directory of Open Access Journals (Sweden)

    Amina Bensalah

    2010-12-01

    Full Text Available

    L’analyse porte sur des productions langagières verbales et non-verbales les plus ordinaires entre des adultes et de très jeunes enfants âgés de moins de deux ans. En articulant les notions de l’évocation de l’absent et du déjà-là, notions qui mettent en avant le processus d’une «temporalité-spatialisée», je problématise la genèse d’un soi comme objet qui se donne à voir dans et par l’activité discursive. Mon hypothèse est que, s’agissant du tout jeune enfant qui ne peut donc s’auto-thématiser ni référer à lui-même de façon explicite, c’est bien dans l’évocation d’autrui et d’autres objets du monde qu’indirectement, il nous «parle» de lui. Trois éléments viennent étayer ma réfl exion pour répondre à la problématique posée : les notions de temporalité, de spatialité et d’affect. Elles sont clairement présentes dans les initiatives de demande, dans les mouvements des échanges et dans les séquences «pré-narratives» produites par l’enfant. Au vu des corpus, ces trois notions m’ont paru inséparables du lieu même où elles font ancrage, à savoir : l’interaction et le dialogue avec l’autre. L’approche adoptée dans l’analyse pour argumenter l’idée de l’expression d’un «parler de soi» chez le tout jeune enfant n’est pas tant, au sens strict, de type linguistique que de type pragmatique. Aussi, j’analyse les effets réciproques entre l’interaction et les échanges qui la modèlent.

  20. Comprendre le risque routier professionnel par l’analyse de l’activité : l’exemple des conducteurs de travaux Understanding occupational road risk by analyzing the activity: The example of project and site supervisors Comprender el riesgo laboral en carreteras a través del análisis de la actividad. El ejemplo de los conductores de trabajos

    Directory of Open Access Journals (Sweden)

    Justine Forrierre

    2010-05-01

    Full Text Available Cet article présente les résultats d’une recherche portant sur le risque routier professionnel rencontré par des travailleurs dont la conduite n’est pas le métier mais qui se déplacent fréquemment : les conducteurs de travaux de chantiers de travaux publics. En adoptant le point de vue de l’activité, nous montrons que la compréhension et la prévention de ce risque nécessitent de connaître et de comprendre l’activité de travail. En effet, l’activité de conduite est une activité de travail et le risque qui lui est lié est un risque au travail. Pour prévenir ce dernier, il est donc nécessaire de dépasser la simple approche comportementale de l’activité de conduite et de prendre en considération l’ensemble des déterminants de l’activité de travail qui font que le conducteur de travaux se déplace et prend des risques sur la route. Nous retiendrons que les aspects organisationnels (prescription, organisation de la production, politique de ressources humaines, matériel (véhicule, outils de communication et interentreprises (relationnel client affectent l’activité de conduite et que la prévention du risque routier nécessite donc une approche globale (aux niveaux individuel et collectif, dans l’entreprise et avec les entreprises extérieures qui touche à ces différents domaines.This paper presents the results of a study on the occupational road risk of workers for whom driving is not their job but who drive frequently: Public Works site supervisors. Using the activity’s theoretical framework, we show that in order to understand and prevent this risk, the work activity needs to be known and understood. In fact, driving is a work activity and the related risk is an occupational risk. To prevent the latter, it is necessary to go beyond the simple behavioural driving activity approach and consider all the determinants of the work activity that cause the work supervisor to drive and take risks on the road

  1. Activités agricoles et territoires

    OpenAIRE

    Bertrand , François; Brédif , Hervé; Duchêne , Eric; Josien , Etienne; Tabeaud , Martine

    2013-01-01

    International audience; La question de l’adaptation de l’agriculture et de la forêt au changement climatique peut s'envisager selon deux grandes approches, dont les conséquences en termes de recherche et d’action diffèrent assez radicalement. La première approche consiste à considérer l’agriculture et la forêt, comme c’est de plus en plus le cas, comme des filières parmi d’autres, l’agriculteur faisant figure d’agent productif parmi beaucoup d’autres. Une telle approche trouve sa justificatio...

  2. Activite Photosynthetique Du Phytoplancton Dans Le Barrage ...

    African Journals Online (AJOL)

    Photosynthetic activity of phytoplankton in the hydroelectric reservoir of Ayamé I was studied during 6 data acquisition campaigns at two stations (Bakro, Ayamé). The main objective was to monitor spatial and temporal changes in phytoplankton productivity and identifiy potential variables responsible for the changes.

  3. Progress report; Rapport d'activite

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    This 2000 issue of the activity report of the CEREM (CEA) gives a general overview of the CEREM organization, activities and human resources with some budgetary information. The main activities described concern the materials fabrication for the nuclear industry and for the medical field, the powder metallurgy, the surface treatments, the joining (by electron beam welding, laser welding, brazing), the electrochemical storage of the energy (SOFC, PEMFC, lithium batteries), the robots for nuclear, automotive and aeronautic industries, the mechanical properties and the cracks, the corrosion and physico-chemistry of fluids, the non-destructive testing and the applications and metrology of ionizing radiations. (O.M.)

  4. PARCS NATIONAUX, RESERVES DE BIOSPHERE ET ACTIVITES ...

    African Journals Online (AJOL)

    VEOLIA EAU

    صﺧﻟﻣ. ﻲﺿارﻷا لﺎﻣﻌﺗﺳا و كﻼﺗﻣا و ﺔﯾﻋارزﻟا تﺎطﺎﺷﻧﻟا ﺔﯾﮐﻣﺎﻧﯾد ﺔﺳارد ﻲﻓ نﻣﮐﯾ لﻣﻌﻟا اذھ نﻣ فدﮭﻟا نإ. ,. لﻼﻐﺗﺳا تارﯾﻐﺗﺑ ﺎﻘﯾﺛو ﺎطﺎﺑﺗرا طﺑﺗرﺗ ﻲﺗﻟا. ﺔﻟﺎﻘﻟﻟ ﺔﯾﻧطوﻟا ةرﯾظﺣﻟا تارﯾﺣﺑﺑ ﺎﺳﺎﺳأ لﺛﻣﺗﯾ يذﻟا و ءﺎﻣﻟا ردﺻﻣ. P.N.E.K. ) ةرﯾﺑوأ ةرﯾﺣﺑ. ,. ﺔﻘﻧوط ةرﯾﺣﺑ. ,. ةرﯾﺣﺑﻟا و حﻼﻣ ةرﯾﺣﺑ. ءﺎﻗرزﻟا. (. نإ. لﻐﺷﻟﻟ لوﻷا ردﺻﻣﻟا ﺢﺑﺻأ يذﻟا ﻲﻋارزﻟا طﺎﺷﻧﻟا روطﺗ اوﻟﮭﺳ دﻗ ﺔﻘطﻧﻣﻟﺎﺑ ﺔﺻﺎﺧﻟا ﺔﻔﯾﻌﺿﻟا ﻊﯾﻧﺻﺗﻟا ﺔﺳﺎﯾﺳ ﻊﻣ قﻓارﺗﻣﻟا ﻲﻓارﻏوﻣﯾدﻟا طﻐﺿﻟا.

  5. Progress report; Rapport d'activite

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    This report presents a selection of results that were obtained by CEREM's teams in 1999. These results are arranged into a series of themes: (i) preparation, fabrication and forming of materials, (ii) surface treatment, (iii) energy storage, (iv) remote handling equipment, (v) corrosion, (vi) physical properties of materials, (vii) non-destructive testing, and (viii) applications of ionizing radiations.

  6. Activités estivales et automnales

    CERN Multimedia

    Staff Association

    2013-01-01

    Recharger les batteries et bien plus encore…. Les vacances d’été sont l’occasion idéale de passer plus de temps avec sa famille, de découvrir de nouveaux pays, se faire de nouveaux amis, autrement dit de passer du temps loin de la routine quotidienne. Cette recharge de batteries est essentielle à notre équilibre travail-vie privée, et le CERN, employeur moderne et socialement responsable, en a fait un élément central de sa politique de ressources humaines. Néanmoins, n’oublions pas que même si beaucoup d’entre vous profitent d’une pause estivale bien méritée, certains de nos collègues travaillent dur pour faire du LS1 (premier long arrêt du LHC) un succès afin de garantir que le LHC pourra, dès 2015, commencer à produire des données de physiq...

  7. Progress report; Rapport d'activite

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    This 2000 issue of the activity report of the CEREM (CEA) gives a general overview of the CEREM organization, activities and human resources with some budgetary information. The main activities described concern the materials fabrication for the nuclear industry and for the medical field, the powder metallurgy, the surface treatments, the joining (by electron beam welding, laser welding, brazing), the electrochemical storage of the energy (SOFC, PEMFC, lithium batteries), the robots for nuclear, automotive and aeronautic industries, the mechanical properties and the cracks, the corrosion and physico-chemistry of fluids, the non-destructive testing and the applications and metrology of ionizing radiations. (O.M.)

  8. Study of a method of detection for natural carbon-14 using a liquid scintillator, recent variations in the natural radio-activity due to artificial carbon-14 (1963); Etude d'une methode de detection du carrons 14 naturel, utilisant un scintillateur liquide - variations recentes de l'activite naturelle dues au carbone 14 artificiel (1963)

    Energy Technology Data Exchange (ETDEWEB)

    Leger, C [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1963-06-15

    Among the various natural isotopes of carbon, a radioactive isotope, carbon-14, is formed by the action of secondary neutrons from cosmic rays on nitrogen in the air. Until 1950, the concentration of this isotope in ordinary carbon underwent weak fluctuations of about 2-3 per cent. The exact measurement of this concentration 6 X 10{sup 12} Ci/gm of carbon, and of its fluctuations, are difficult and in the first part of this report a highly sensitive method is given using a liquid scintillator. Since 1950 this natural activity has shown large fluctuations because of the carbon-14 formed during nuclear explosions, and in the second part, the evolution in France of this specific activity of carbon in the atmosphere and biosphere is examined. In the last part is studied the local increase in carbon activity in the atmosphere around the Saclay site, an increase caused by the carbon-14 given off as C{sup 14}O{sub 2}, by the reactors cooled partially with exterior air. (author) [French] Parmi les differents isotopes naturels du carbone, un isotope radioactif, le carbone 14, est forme par l'action de neutrons secondaires due aux rayons cosmiques sir l'azote de l'air. Jusqu'en 1950, la concentration de cet isotope dans le carbone ordinaire est soumise a des fluctuations de faible amplitude, de l'ordre de 2 a 3 pour cent. Les mesures precises de cette concentration, 6. 10{sup -12} Ci/g de carbone, et de ses fluctuations sont delicates, et dans la premiere partie de ce rapport, on decrit une methode de detection a grande sensibilite utilisant un scintillateur liquide. Depuis 1950, cette activite naturelle subit des fluctuations importantes dues au carbone 14 forme lors des explosions nucleaires, et dans la seconde partie, on examine l'evolution en France de l'activite specifique du carbone de l'atmosphere et ce la biosphere. Dans la derniere partie, on etudie l'accroissement local de l'activite du carbone de l'air aux environs du site de Saclay, accroissement provoque par le

  9. Study of a method of detection for natural carbon-14 using a liquid scintillator, recent variations in the natural radio-activity due to artificial carbon-14 (1963); Etude d'une methode de detection du carrons 14 naturel, utilisant un scintillateur liquide - variations recentes de l'activite naturelle dues au carbone 14 artificiel (1963)

    Energy Technology Data Exchange (ETDEWEB)

    Leger, C. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1963-06-15

    Among the various natural isotopes of carbon, a radioactive isotope, carbon-14, is formed by the action of secondary neutrons from cosmic rays on nitrogen in the air. Until 1950, the concentration of this isotope in ordinary carbon underwent weak fluctuations of about 2-3 per cent. The exact measurement of this concentration 6 X 10{sup 12} Ci/gm of carbon, and of its fluctuations, are difficult and in the first part of this report a highly sensitive method is given using a liquid scintillator. Since 1950 this natural activity has shown large fluctuations because of the carbon-14 formed during nuclear explosions, and in the second part, the evolution in France of this specific activity of carbon in the atmosphere and biosphere is examined. In the last part is studied the local increase in carbon activity in the atmosphere around the Saclay site, an increase caused by the carbon-14 given off as C{sup 14}O{sub 2}, by the reactors cooled partially with exterior air. (author) [French] Parmi les differents isotopes naturels du carbone, un isotope radioactif, le carbone 14, est forme par l'action de neutrons secondaires due aux rayons cosmiques sir l'azote de l'air. Jusqu'en 1950, la concentration de cet isotope dans le carbone ordinaire est soumise a des fluctuations de faible amplitude, de l'ordre de 2 a 3 pour cent. Les mesures precises de cette concentration, 6. 10{sup -12} Ci/g de carbone, et de ses fluctuations sont delicates, et dans la premiere partie de ce rapport, on decrit une methode de detection a grande sensibilite utilisant un scintillateur liquide. Depuis 1950, cette activite naturelle subit des fluctuations importantes dues au carbone 14 forme lors des explosions nucleaires, et dans la seconde partie, on examine l'evolution en France de l'activite specifique du carbone de l'atmosphere et ce la biosphere. Dans la derniere partie, on etudie l'accroissement local de l'activite du carbone de l'air aux

  10. Le volcan Cayambe (Equateur: son activité au cours des 5000 dernières années et les menaces qui en résultent

    Directory of Open Access Journals (Sweden)

    1996-01-01

    Full Text Available L’étude des produits récents émis par les dômes dacitiques qui constituent la partie sommitale du volcan Cayambe, situé à 60 km au NE de Quito, révèle quatre unités volcaniques comprenant des coulées pyroclastiques à blocs et cendres, des déferlantes et des lahars associés. La plus jeune de ces unités a été émise vers 360 ans BP. Par ailleurs, l’étude des dépôts d’une tourbière du Cayambe met en évidence 23 niveaux de retombées (cendres et lapilli émis au cours de 3 grands cycles d’activité, de 7 à 10 siècles de durée, depuis 4 000 ans. Le dernier de ces cycles, auquel peuvent être rattachées les quatre phases de coulées pyroclastiques, n’est peut-être pas terminé, comme le suggère une petite éruption intervenue en 1785-1786. Ces résultats donnent un éclairage nouveau sur les menaces que ce volcan, fortement englacé, fait peser sur les populations vivant à son pied. EL VOLCÁN CAYAMBE (ECUADOR: SU ACTIVIDAD DESDE LOS ÚLTIMOS 5 000 AÑOS Y LAS AMENAZAS CORRESPONDIENTES. El estudio de los productos recientes emitidos por los domos dacíticos que forman la cumbre del volcán Cayambe, ubicado a 60 km al noreste de Quito, revela cuatro unidades de flujos piroclásticos de bloques y ceniza, oleadas y lahares asociados. La unidad más reciente fue emitida alrededor de 360 BP. Además, el estudio de los depósitos de una turbera del Cayambe muestra 23 niveles de caídas (cenizas y lapilli, que corresponden a tres ciclos de actividad, de 7 a 10 siglos de duración cada uno, durante los 4 000 últimos años. El último ciclo, que incluye las cuatro unidades de flujos piroclásticos mencionadas, puede no haber terminado todavía, como lo sugiere la pequeña erupción ocurrida en 1785-1786. Estos resultados enfatizan el peligro que este volcán, cubierto por un espeso casquete glaciar, puede representar para las poblaciones y las infraestructuras establecidas en sus alrededores. CAYAMBE VOLCANO (ECUADOR: ERUPTIVE

  11. Les gestes dans l’activité en situation de travail Gestures in work activities. A brief survey of analysis problems Los gestos en la actividad en situación de trabajo : una aproximación de algunos problemas de análisis

    Directory of Open Access Journals (Sweden)

    Jacques Leplat

    2013-05-01

    Full Text Available La notion de geste est polysémique comme en témoigne la bibliographie considérable qui lui est consacrée. Le présent article limite son domaine aux gestes qui marquent l’activité dans les situations de travail. Il le fait en essayant de dégager quelques thèmes qui ont retenu plus particulièrement l’attention des ergonomes et des psychologues du travail avec l’objectif de montrer la place à réserver aux gestes dans l’analyse des activités auxquelles ils sont liés. Deux fonctionnalités des gestes, expressive et instrumentale, ont été privilégiées. Les différentes formes qu’elles peuvent prendre et le rôle qu’elles jouent dans le développement et la gestion de l’activité sont montrés. D’autres fonctionnalités sont aussi abordées propres à suggérer d’ultérieures recherches. La conclusion insiste sur l’intérêt de relier l’étude du geste à celle de l’activité dans laquelle il s’insère, chacune pouvant éclairer l’autre quand elles sont bien articulées.A gesture is a polysemic notion, as is testified by the considerable bibliography devoted to it. The present paper is limited to the study of gestures that comprise the work activity. Our study attempted to determine which themes in particular have captured the attention of ergonomists and work psychologists, the objective being to show the place that should be reserved for gestures in the analysis of work activities. Two functionalities, expressive and instrumental, are considered here, in particular the different forms they take and roles they play in developing and managing activities. Other functionalities are also briefly discussed with regard to future research avenues. The conclusion emphasizes the interest of relating the study of gestures to that of the activity that comprises them, each one shedding light on the other.La noción de gesto es polisémica como demuestra la considerable bibliografía dedicada al tema. El presente art

  12. High-sensitivity gamma spectroscopy for extended sources. Application to activity measurements on the human body, on glass, and on soil; Spectrographie gamma a grande sensibilite pour sources etendues. Application a la mesure de l'activite du corps humain, du verre et du sol

    Energy Technology Data Exchange (ETDEWEB)

    Jouve, B

    1962-07-01

    The measurement and location by gamma spectroscopy of human body internal contaminations at maximum permissible levels, and, in certain cases, at lower activities such as that due to {sup 40}K was investigated. The characteristics of the high-sensitivity apparatus used are given, and several assemblies using large-volume NaI(Tl) scintillators are described. The relatively light shielding required for natural radioactivity permitted construction of mobile assembly. Conditions of use are described, and the results are given. All gamma emitting elements were measured in 15 min at levels lower than the tolerance dose. Gamma spectroscopy was also used to determine fission products in the earth and to study radioactive elements in the presence of other emitters. (author) [French] La spectrographie gamma du corps humain permet la mesure et la localisation des contaminations internes au niveau des doses de tolerance et, dans certains cas, celle d'activites plus faibles comme la radioactivite naturelle due principalement au potassium 40. Les caracteristiques des appareils a grande sensibilite permettant ces mesures sont exposees et on decrit plusieurs realisations originales utilisant un scintillateur NaI(Tl) de grand volume. L'epaisseur du blindage a ete limitee a 5 cm de plomb, ainsi, pour une protection suffisante contre les rayonnements ambiants, les appareils sont relativement legers et l'une des realisations a pu etre installee dans un laboratoire mobile. Les conditions d'utilisation (mouvement propre, etalonnage) et les resultats obtenus sont donnes; tous les radioelements emetteurs gamma sont mesurables en 15 minutes a un niveau inferieur a la dose de tolerance. On presente enfin des applications a la spectrographie gamma d'echantillons volumineux (poudres ou liquides) et de tres faible activite: elles interessent des domaines tres varies comme, par exemple, la geophysique (etude des retombees radioactives) ou l'industrie chimique (dosage du potassium dans les

  13. High-sensitivity gamma spectroscopy for extended sources. Application to activity measurements on the human body, on glass, and on soil; Spectrographie gamma a grande sensibilite pour sources etendues. Application a la mesure de l'activite du corps humain, du verre et du sol

    Energy Technology Data Exchange (ETDEWEB)

    Jouve, B

    1962-07-01

    The measurement and location by gamma spectroscopy of human body internal contaminations at maximum permissible levels, and, in certain cases, at lower activities such as that due to {sup 40}K was investigated. The characteristics of the high-sensitivity apparatus used are given, and several assemblies using large-volume NaI(Tl) scintillators are described. The relatively light shielding required for natural radioactivity permitted construction of mobile assembly. Conditions of use are described, and the results are given. All gamma emitting elements were measured in 15 min at levels lower than the tolerance dose. Gamma spectroscopy was also used to determine fission products in the earth and to study radioactive elements in the presence of other emitters. (author) [French] La spectrographie gamma du corps humain permet la mesure et la localisation des contaminations internes au niveau des doses de tolerance et, dans certains cas, celle d'activites plus faibles comme la radioactivite naturelle due principalement au potassium 40. Les caracteristiques des appareils a grande sensibilite permettant ces mesures sont exposees et on decrit plusieurs realisations originales utilisant un scintillateur NaI(Tl) de grand volume. L'epaisseur du blindage a ete limitee a 5 cm de plomb, ainsi, pour une protection suffisante contre les rayonnements ambiants, les appareils sont relativement legers et l'une des realisations a pu etre installee dans un laboratoire mobile. Les conditions d'utilisation (mouvement propre, etalonnage) et les resultats obtenus sont donnes; tous les radioelements emetteurs gamma sont mesurables en 15 minutes a un niveau inferieur a la dose de tolerance. On presente enfin des applications a la spectrographie gamma d'echantillons volumineux (poudres ou liquides) et de tres faible activite: elles interessent des domaines tres varies comme, par exemple, la geophysique (etude des retombees radioactives) ou l'industrie chimique

  14. Utilisation de l'assistant grammatical Antidote dans le cadre d'activités de révision - Analyse exploratoire de protocoles d'observation Using Antidote in Revision Tasks: An Exploratory Study of Grammar Checker Usage Through Verbal Protocol Analysis

    Directory of Open Access Journals (Sweden)

    Patrick Durel

    2006-06-01

    Full Text Available Cette étude examine les opérations mentales d'apprenants utilisant l'assistant grammatical Antidote en phase de révision de leurs productions écrites. Analysant des données obtenues à partir de la méthode des protocoles verbaux, ce travail montre comment ce type d'activité de révision assistée par ordinateur conduit l'apprenant à manipuler, construire, renforcer ou élargir le champ d'application de ses connaissances, qu'elles soient déclaratives ou procédurales. Les éléments dégagés indiquent que l'utilisation d'Antidote peut être vecteur d'apprentissage et offrent quelques pistes permettant de concevoir des activités de révision assistée par ordinateur qui s'inscrivent dans le cadre d'une didactique de la production scripturale.This study explores learners' cognitive processes when using the grammar assistant software Antidote during the revision phase of their composition. Analysing data obtained using a hybrid form of verbal protocols, it shows how computer-assisted revision activity can lead learners to manipulate, build or reinforce declarative and procedural knowledge. We argue that using grammar assistant software can be conducive to learning. The results of the analysis provide an insight into how such a tool can be integrated into classroom activities, contributing to writing quality and the acquisition of revision strategies.

  15. Forecasting the Quantity and Activity of Fission Products in France in Future Years in the Light of Atomic Energy Development; Quantite et Activite des Produits de Fission Obtenus en France dans les Annees a Venir Compte Tenu du Developpement de l'Energie Atomique; 041a 041e 041b 0414 ; Cantidad y Actividad de los Productos de Fision que se Obtendran en Francia en los Anos Venideros, Habida Cuenta del Desarrollo de la Energia Atomica

    Energy Technology Data Exchange (ETDEWEB)

    Guirlet, J.; Lavie, J. M. [Commissariat a l' Energie Atomique, Saclay (France)

    1960-07-01

    With the aid of Wigner and Way's formula it is possible to predict theoretically the activity of the complex mixture of fission products originating in a reactor. Account is taken in the study of prospective nuclear power production in France up to 1975. It is assumed that the uranium stays in the reactor for periods of three and of six months. It is also possible to determine the activity of a given fission product and to calculate its decay time. The substance selected was strontium for an activation period of three months. Each group of curves shows total activity at any moment and the activity of particular fission products over a given period. (author) [French] En utilisant la formule de Wigner et Way, il est possible de prevoir theoriquement l'activite du melange complexe de produits de fission provenant d'une pile. L'etude a ete faite en tenant compte de previsions en ce qui concerne en France la production d'electricite d'origine atomique jusqu'en 1975. On a suppose des temps de sejour en pile de l'uranium de trois mois et de six mois. Il est possible egalement de trouver l'activite d'un produit de fission particulier, et de donner sa decroissance. Le corps choisi est le strontium pour un temps d'activation de trois mois. Chaque ensemble de courbes donne a tout instant l'activite totale, et l'activite propre des produits de fission correspondant a une periode donnee. (author) [Spanish] Empleando la formula de Wigner y Way se puede calcular teoricamente la actividad de la mezcla compleja de productos de fision procedentes de una pila. Para esta memoria se han tenido en cuenta las previsiones de produccion de electricidad nucleoelectrica en Francia hasta 1975. Los autores suponen que el uranio permanece tres o seis meses en la pila y han conseguido determinar la actividad de un producto de fision determinado, asi como su periodo de desintegracion. Han escogido el estroncio, con un tiempo de activacion de 3 meses. Cada conjunto de curvas da la actividad total

  16. High energy {gamma} emission in the spontaneous fission of {sup 252}Cf; Emission {gamma} de grande energie dans la fission spontanee de {sup 252}Cf

    Energy Technology Data Exchange (ETDEWEB)

    Badimon, C.; Barreau, G.; Doan, T.P.; Pedemay, G. [Centre d`Etudes Nucleaires, Bordeaux-1 Univ., 33 Gradignan (France); Gautherin, C.; Houry, M.; Korten, W.; Le Coz, Y.; Lucas, R.; Thiesen, Ch. [Dept. d`Astrophysique, de la Physique des Particules, de la Physique Nucleaire et de l`Instrumentation Associee, CEA Centre d`Etudes de Saclay, 91 - Gif-sur-Yvette (France); Belier, G.; Meot, M.V. [CEA Centre d`Etudes de Bruyeres-le-Chatel, 91 (France); Astier, A.; Ducroux, L.; Meyer, M.; Redon, N. [Inst.de Physique Nucleaire, Lyon-1 Univ., 69 - Villeurbanne (France)

    1997-06-01

    The prompt {gamma} emission in the spontaneous fission of {sup 252}Cf is characterized by an energy spectrum which extends up to 20 MeV. It was established that the spectrum presents in the neighbourhood of symmetric fission an intensity bump in the 3-8 MeV {gamma} energy interval. The origin of this phenomenon is still not well understood, so that it was found interesting to carry out new measurements. The spectrum of the {gamma} rays emitted in spontaneous fission of {sup 252}Cf has been measurement in the EUROGAM II multidetector using photovoltaic cells to detect fragments. The aim of the experiment was to investigate the {gamma} yield enhancement which appears for mass fragment ratio near 132/120. This enhancement was found to be composed of two peaks located at 4 MeV and 5.5 MeV respectively. The results obtained confirm the intensity bound in the 3-8 MeV region but this augmentation reaches the maximum when the heavy fragment is near the mass 132. Beyond mass 140 the phenomenon diminish and the {gamma} spectrum regains the behaviour expected for a statistic emission. The additional structure at 5.5 MeV does not vary with excitation energy while the excitation function of the 4 MeV structure is more structured and presents a maximum when the excitation energy is near 8 MeV. It is likely that all or part of this observed phenomenon is due to a particular excitation mode of this isotope associated for instance with a low energy dipole resonance. A theoretical study of this collective effect is under way 3 refs.

  17. Study of the isomer nuclei produced in the spontaneous fission of {sup 252}Cf; Etude des noyaux isomeriques produits dans la fission spontanee de {sup 252}Cf

    Energy Technology Data Exchange (ETDEWEB)

    Gautherin, C.; Houry, M.; Korten, W.; Le Coz, Y.; Lucas, R.; Thiesen, Ch. [Dept. d`Astrophysique, de la Physique des Particules, de la Physique Nucleaire et de l`Instrumentation Associee, CEA Centre d`Etudes de Saclay, 91 - Gif-sur-Yvette (France); Badimon, C.; Barreau, G.; Doan, T.P.; Pedemay, G. [Centre d`Etudes Nucleaires, Bordeaux-1 Univ., 33 Gradignan (France); Belier, G.; Girod, M.; Meot, M.V. [CEA Centre d`Etudes de Bruyeres-le-Chatel, 91 (France); Astier, G.; Meot, V.; Peru, S. [CEA Centre d`Etudes de Bruyeres-le-Chatel, 91 (France); Astier, A.; Ducroux, L.; Meyer, M.; Redon, N. [Inst.de Physique Nucleaire, Lyon-1 Univ., 69 - Villeurbanne (France)

    1997-06-01

    Isomeric states have been studied in fission fragments produced by spontaneous fission of {sup 252}Cf. 34 isomeric nuclei have been identified by using coincidences between {gamma}-rays detected in EUROGAM II and fission fragments detected in photovoltaic cells. Lifetimes from 20 ns up to 2 {mu}s have been measured. Microscopic interpretation of the isomeric levels discovered has been tried by means of the Hartree-Fock-Bogolyubov procedure using Gogny force. It was found that the {sup 152,154,156}Nd nuclei have prolate deformation in their ground state; the rotational band built on this ground state is well reproduced by the calculation. For these nuclei the 2 quasi-particle excited states energies are above 1 MeV in agreement with the experiment. The computation confirms the similitude of the {sup 156}Nd and {sup 158}Sm isomeric states associated to neutron 2 quasi-particles of J{sup {pi}} K{sup {pi}} = 5{sup -} ({nu} 5/2 (642) x {nu} 5/2 (523)) while such similitude does not occur for the isotone nuclei {sup 154}Nd and {sup 156}Sm. The computation predicts a proton 2 quasi-particle excited states of J{sup {pi}} = 5{sup -}, near the isomeric level measured in {sup 156}Sm but not for that of {sup 154}Nd. Concerning the {sup 152}Nd the calculated level density is very near that of the states measured in the 1.6 to 2.3 MeV interval. However, the lack of precise information on spins and parities of the measured levels does make not possible a confrontation with the calculations. An up-graded equipment implying 32 photovoltaic cells instead of 2 cells is to be developed and installed by the EUROGAM 3 refs.

  18. La messagerie électronique, principal métronome des activités de cadre Electronic mail as the main metronome of supervisory activities Mensajería electrónica, principal metrónomo de la actividad de los ejecutivos

    Directory of Open Access Journals (Sweden)

    Sophie Bretesché

    2012-12-01

    Full Text Available Cet article met en perspective la façon dont la messagerie concourt à structurer un nouveau rapport au travail chez les cadres. En s’appuyant sur les travaux d’Elias, il s’agit d’étudier la façon dont la messagerie électronique imprime une unité de temps qui structure l’ensemble des activités des cadres et les transforme. L’analyse proposée s’appuie sur une étude de cas qui interroge les transformations des rôles dédiés aux cadres et plus spécifiquement aux cadres de la fonction publique territoriale à travers l’usage du mail. Les résultats mettent en lumière dans un premier temps la façon dont la messagerie structure d’un point de vue temporel les pratiques professionnelles. Celles-ci s’articulent autour de la gestion et de la hiérarchisation continue d’informations reçues sur le mode du flux continu. Ainsi, ce sont des activités de temporation et de synchronisation de l’information qui constituent les nouvelles formes d’exercice de l’activité. En effet, la particularité du travail des cadres au travers de la messagerie est d’intégrer dans une même unité de temps des données au caractère contradictoire. Si l’outil facilite l’intégration en temps réel des multiples niveaux d’activités, il crée paradoxalement une nouvelle forme de dépendance temporelle qui questionne l’autonomie traditionnellement déléguée au cadre.The paper seeks to determine how e-mail helps to restructure supervisory activities. In France, socio-professional categories such as professionals, managers and executives are all classified as supervisors. Based on Elias’ conception of time, the study analyses how e-mail creates time units that structure and transform supervisory activities. A case study involving a local authority is then mobilized to ask questions about how email use has transformed dedicated supervisory roles. Findings reveal that e-mail tends to structure professional practices along

  19. Determination of plateau slope and activity using filter measurement results and W. Chauvenet's criterion (Mage II and Fortran IV calculation programmes); Determination de pente de palier et d'activite a partir de resultats de mesure filtres selon le critere de W. Chauvenet (programmes de calcul en Mage II et Fortran IV)

    Energy Technology Data Exchange (ETDEWEB)

    Becker, A [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires, Departement d' Electronique Generale, Laboratoire de Metrologie de la Radioactivite

    1967-10-01

    In order to permit (at least partially) the objective comparison of plateau characteristics of gas-ionisation counters, plateaus which are obtained when each radioactive sample from normal LMR production is measured, a programme has been drawn up (on an electronic computer) comprising a processing section using least squares for obtaining the corrected plateaux and energies. With a view to an automatic operation of radio-measurement chains, the programme also comprises a preliminary section in which the statistical considerations of B. Peirce have been applied in the version better known as Chauvenet's criterion; this has been done with a view to eliminate measurement results which are dubious and even totally wrong. (author) [French] Pour rendre possibles (au moins partiellement) des comparaisons objectives entre paliers de caracteristiques de compteurs a ionisation gazeuse, paliers traces lors de la mesure de chaque etalon radioactif de la production courante du L.M.R., il a ete ecrit un programme (sur machine a calculer electronique) comportant une partie de traitement par les moindres carres en vue de la determination de pentes et d'activites corrigees. En prevision d'une exploitation automatique de cha es de radio-mesure, le programme comporte en outre une partie preliminaire dans laquelle des considerations statistiques dues a B. Peirce ont ete appliquees dans leur version plus connue sous le nom de critere de Chauvenet et ce dans le but d'une elimination des resultats de mesure suspects et meme veritablement aberrants. (auteur)

  20. Caractérisation de l’huile d’argan algérienne (région de Tindouf et étude de ses activités antioxydantes et antimicrobiennes en comparaison avec une huile marocaine [Characterization of Algerian argan oil (Tindouf region and study of its antioxidant and antimicrobial activities in comparison with a Moroccan oil

    Directory of Open Access Journals (Sweden)

    Mohamed SA. KECHEBAR

    2017-12-01

    Full Text Available Résumé Introduction. L’huile d’argan algérienne, provenant de la région de Tindouf (Extrême sud-ouest algérien, est une huile non valorisée jusqu’à l’heure actuelle. Objectif. L’huile d’argan algérienne extraite par méthode traditionnelle est comparée avec l’huile d’argan marocaine, obtenue par presse mécanique, dans le but d’étudier ses qualités pour une éventuelle valorisation. Matériels et méthodes. Les caractéristiques physico-chimiques, la composition en acides gras (AG et en stérols sont déterminées, puis les activités antioxydantes et antimicrobiennes des fractions saponifiable et insaponifiable sont étudiées. Résultats. L’huile algérienne est une huile vierge fine, très riche en acide linoléique (35% pour l’huile algérienne et 28% pour l’huile marocaine et β-sitostérol (64% pour l’huile algérienne et 59% pour l’huile marocaine, caractérisée par une faible teneur en chlorophylles (1,3 et 1,8 mg phéophytine/kg d’huile respectivement pour l’huile algérienne et celle marocaine et un faible coefficient d’extinction spécifique (K232=1,15 pour l’huile algérienne et 2,34 pour l’huile marocaine. Les résultats des activités antioxydantes ont montré que la fraction insaponifiable pour les deux huiles est plus active, notamment contre le radical DPPH et le blanchiment de la β-carotène. Quant à l’activité antibactérienne, l’huile marocaine a révélé une activité contre trois bactéries et l’huile algérienne contre un champignon. Conclusion. Il convient de considérer l’huile d’argan artisanale algérienne, non encore valorisée, comme une huile prometteuse tout comme l’huile industrielle marocaine. [Abstract. Introduction. Algerian argan oil, from the region of Tindouf (far south-west of Algeria, is an oil that has not been upgraded until now. Objective. The Algerian argan oil extracted by traditional method was compared with a Moroccan oil obtained by

  1. Language Tasks and Mobile Technologies: A Paradigm Shift in Designing Task-Based CALL for Young Language Learners / Activités langagières et technologies mobiles : un changement de paradigme dans la conception des tâches en apprentissage des langues

    Directory of Open Access Journals (Sweden)

    Martine Pellerin

    2014-05-01

    Full Text Available This article examines how the use of mobile technologies (iPods and tablets in language classrooms contributes to redesigning task-based approaches for young language learners. The article is based on a collaborative action research (CAR project in Early French Immersion classrooms in the province of Alberta, Canada. The data collection included digital ethnographic observation in the classrooms, students’ artifacts, and interviews with teachers and students. The findings outlined how the use of mobile technologies such as iPods and tablets contributes to redesigning language tasks and activities by helping young learners to create their own learning environment and meaningful language tasks, as well as self-assess and regulate their language learning process. The research also provides evidence of how the use of mobile technologies contributes to redesigning task-based approaches for young language learners that reflect learning principles based on emergent learning theories as well as Vygotskian sociocultural theories in second language acquisition (SLA. Activités langagières et technologies mobiles : un changement de paradigme dans la conception des tâches en apprentissage des langues assisté par ordinateur pour jeunes apprenants Cet article étudie la façon dont l'utilisation des technologies mobiles (iPods et tablettes dans les classes de langue contribue à la refonte des approches basées sur des tâches pour les jeunes apprenants. L'article se fonde sur un projet de collaboration recherche-action (CRA dans les classes initiales d'immersion en français dans la province de l'Alberta, au Canada. La collecte de données comprenait l'observation ethnographique numérique dans les salles de classe, les artefacts des élèves, et des entrevues avec les enseignants et les étudiants. Les résultats ont montré comment l'utilisation des technologies mobiles telles que les iPods et tablettes contribue à la refonte des tâches et des

  2. La fatigue du patron pêcheur dans l’activité de chalutiers pélagiques : approche d’anthropologie cognitive The captain’s fatigue in the pelagic trawler activity: a cognitive anthropology approach La fatiga del capitan de pesca en la actividad de los pescadores pelágicos : un enfoque de antropologia cognitiva

    Directory of Open Access Journals (Sweden)

    Bastien Sennegon

    2011-05-01

    Full Text Available Nous avons analysé les processus de fatigue à travers l’activité de trois patrons pêcheurs de chalutiers pélagiques.Nous nous sommes focalisés sur la fatigue perçue d’un point de vue psychologique. Le recueil de données s’est effectué en situation naturelle. Notre méthode a combiné l’observation directe et des entretiens compréhensifs. Les rythmes de travail sont la principale cause de fatigue, car les périodes de repos n’autorisent pas une récupération suffisante. Ainsi, nous notons une accumulation de la fatigue d’ordre psychologique tout au long de la saison de pêche. Cette récupération est limitée par les troubles du sommeil observés à bord. De surcroît, l’analyse de l’activité du patron pêcheur révèle une charge de travail conséquente à la source de stress et de risque dans ce contexte de vigilance minorée.We analyzed the dynamics of the fatigue processes through the activity of pelagic trawlers captains.We focussed on perceived fatigue from a psychological point of view. The data were collected in natural situation. Our methodology combined direct observation with non-directive interviews.The work rhythms aboard trawlers (phases of work and rest alternation are the main cause of the captain’s fatigue. The short periods of rest do not authorize a sufficient recovery. Thus, we note a fatigue accumulation throughout the trawling season. In addition, the recovery is restricted by the sleep disorders observed during the embarkations. The analysis of the trawler captain’s activity reveals workload, causing stress, as well as risk-taking in a diminished vigilance context.Analizamos los procesos de fatiga a traves de la actividad de tres capitanes de pesca de los barcos pescadores pelágicos. Nos concentramos sobre la fatiga percibida desde el punto de vista psicológico. La colecta de datos se efectuó en situacion natural. Nuestro método combina la observación directa y entrevistas no dirigidas

  3. Nouvelle approche pour le suivi de la réactivité de phases SiO2 soumises à la Réaction Alcali Silice (RAS New approach for monitoring the reactivity of SiO2 phases subject to Alkali Silica Reaction (SAR

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    Harfouche M.

    2012-09-01

    Full Text Available Nous avons suivi- au moyen de la microscopie électronique à balayage environnementale (MEBE la diffraction X et la spectroscopie d’absorption des rayons X sous rayonnement synchrotron (XANES- la réactivité de certaines phases SiO2 lors du processus de la Réaction Alcali Silice (RAS. Cette réactivité est étroitement liée à la structure locale autour des atomes de silicium ainsi qu’à la présence d’impuretés comme le fer. Dans le cas du silex brut, la raie blanche du seuil K du fer ressemble davantage à celle de Fe3O4 ce qui permet de déduire la présence d’un mélange de Fe2+/Fe3+ dans le silex de départ. Après réaction, l’allure du spectre d’absorption des rayons X au seuil K du fer du silex est conservée avec un léger déplacement de la raie blanche vers les hautes énergies. Cette augmentation montre une prédominance de la valence Fe3+ au détriment de la valence Fe2+. Les résultats montrent que le fer participe à la stabilisation de la structure des phases formées. Cette étude peut être étendue à d’autres éléments traces présents dans la structure du silex de départ. In this study the reactivity of some SiO2 phases under Alkali Silica Reaction (RAS process is followed, using the environmental scanning electron microscopy (ESEM X-ray diffraction and absorption spectroscopy X-ray synchrotron radiation (XANES. This reactivity is closely related to the local structure around the silicon atoms and the presence of impurities such as iron. In the case of flint raw skate white iron K line is more like that of Fe3O4 which allows to deduce the presence of a mixture of Fe2+ / Fe3+ in the flint to start. After reaction, the shape of the spectrum of X-ray absorption K edge of iron in the flint is retained with a slight displacement of the white stripe to high energies. This increase shows a predominance of the valence Fe3+ at the expense of Fe2+ valence. The results show that iron is involved in stabilizing the

  4. Low-Level {beta} and {gamma} Counting in the Region 0-10 Disintegrations Per Minute; Comptage {beta} et {gamma} d'echantillons de faible activite (0 a 10 desintegrations par minute); Izmerenie {beta}- i {gamma}-izlucheniya maloj moshchnosti (0-10 raspadov v minutu); Recuento {beta} y {gamma} de muestras de baja actividad (0 a 10 desintegraciones por minuto)

    Energy Technology Data Exchange (ETDEWEB)

    Manov, George G [Tracerlab Inc. (United States)

    1960-06-15

    niveaux de radioactivite de l'ordre de 0 a 10 desintegrations par minute devient de plus en plus utile dans la normalisation des radionuclides de meme que dans d'autres domaines scientifiques, tels que la geologie et la medicine. Ainsi le comptage de faible intensites est souvent necessaire en biologie et dans l'emploi des indicateurs, surtout lorsque l'emploi d'un niveau de rayonnement plus eleve modifierait le deroulement du mecanisme ou du processus etudie. Ces mesures portent souvent sur des echantillons ayant une activite de l% seulement de l'activite de fond normale (sans ecran). Dans d'autres cas, il faut tenir compte en outre du fait que le radionuclide a une periode tres courte. Il y a trois manieres generales d'augmenter la precision des mesures de faibles intensites: efficacite plus grand des compteurs, diminution des correc- tions necessitees par l'activite de fond et emploi de circuits electroniques plus stables et plus silencieux. Le memoire decrit des essais compares qui font ressortir les avantages relatifs que presentent trois types differents de compteurs d'anticoincidence s pour la reduction de l'activite de fond: a) compteurs 'champignons'; b) compteurs annulaires; c) domes en matiere plastique a scintillations. Il devient de plus en plus difficile d'obtenir des matieres non actives pour la construction des compteurs. L'auteur donne des indications sur la gamme d'activite des matieres que l'on peut se procurer dans le commerce. Le stockage de ces matieres, qui doivent de preference etre d'avant-guerre, devient de plus en plus necessaire. La stabilite du circuit electronique est indispensable au comptage de faible intensite, afin surtout d'eviter les impulsions parasites. Le memoire decrit un dispositif dans lequel des impulsions lentes sont mesurees, puis introduites dans l'appareillage electronique; elles passent ensuite par l'amplificateur et sont enfin defalquees du chiffre brut indique par le numerateur. D'une maniere generale, les circuits a

  5. Effect of Ash on Oxygen Carriers for the Application of Chemical Looping Combustion to a High Carbon Char Effet des cendres sur l’activité des porteurs d’oxygène dans la combustion du charbon en boucle chimique

    Directory of Open Access Journals (Sweden)

    Rubel A.

    2011-02-01

    activity of the OCs and both OCs performed well. The results were promising for the application of CLC directly to solid fuels. L’application de la combustion en boucle chimique (CLC aux combustibles solides est actuellement étudiée à l’Université du Kentucky, au Centre de Recherche de l’Energie Appliquée (CAER dans le but de développer un procédé de gazéification/combustion en boucle chimique pressurisé (PCLC/G afin de générer de l’électricité à partir de charbon. Un des principaux aspects de la combustion en boucle chimique de combustibles solides est la compréhension de l’effet des cendres sur la réactivité des porteurs d’oxygène (OCs. L’effet des cendres sur la capacité de transfert d’oxygène et sur l’aptitude à oxyder le charbon est étudié avec deux porteurs d’oxygène à base d’oxydes de fer. Les cendres utilisées sont des cendres volantes provenant d’une centrale thermique au charbon. Les expériences sont réalisées dans un système composé d’une thermo-balance couplée à un spectrographe de masse (TGMS dans lequel on utilise d’abord 500 mg d’un mélange de cendres/porteurs d’oxygène à différentes concentrations de cendres allant jusqu’à 75 %. Le gaz réducteur est composé de 10 % de H2, 15 % de CO, 20 % de CO2 et de 55 % de Ar; et le gaz oxydant est composé de 20 % de O2 dans Ar. Les réactions d’oxydation/réduction sont quasi totales. D’après ces expériences, les cendres ont une activité propre de porteur d’oxygène, liée à la présence de fer dans les cendres, confirmée par les analyses DRX. Cela génère une augmentation du gain ou de la perte de masse du mélange pendant l’oxydation/réduction. Les vitesses d’oxydation/réduction augmentent avec la concentration des cendres à cause de l’augmentation de la porosité du mélange de porteurs d’oxygène avec les cendres, ce qui permet un meilleur accès des gaz réactifs sur les sites actifs des porteurs d’oxygène. Dans un

  6. Les activités de gestion d’alerte épidémiologique : les transformations induites par l’utilisation d’un système de surveillance en temps réel Alert Management Activity: Cognitive and team activity modifications due to the use of an early warning system Las actividades de gestión de alerta epidemiológica : las transformaciones inducidas por la utilización de un sistema de vigilancia en tiempo real

    Directory of Open Access Journals (Sweden)

    Charlotte Gaudin

    2012-05-01

    Full Text Available Cet article présente une recherche en psychologie cognitive et ergonomique visant à analyser l’activité de gestion d’une alerte épidémiologique. Gérer une alerte épidémiologique est une activité médicale distribuée et complexe consistant en la gestion d’un environnement dynamique puisque l’épidémie évolue et se propage rapidement si aucune action n’est entreprise pour la contrôler. Plus précisément, deux types de situation sont analysées : (1 l’activité traditionnelle de gestion d’alerte et (2 cette même activité lorsqu’elle est assistée par un système informatique, en l’occurrence le système ASTER (ou Alerte et Surveillance en TEmps Réel. Les résultats obtenus sont ensuite discutés au niveau cognitif et au niveau des activités collectives consécutivement à l’introduction et à l’utilisation d’un système technique.This paper presents a study that investigated the management of epidemiological alerts. Alert management is a complex, distributed medical activity. It can be compared to the largest category of dynamic environment management. Two activities were examined. First, we analyzed traditional alert management activity with the MAD method (observations and interviews. Second, we analyzed and characterized alert management activities when supported by the computerized ASTER system (Alerte et Surveillance en TEmps Réel, alert and monitoring in real time. The second analysis was conducted with EORCA method, which is used to describe collective and complex activities. The results highlight various modifications to both the cognitive activity and team activities which were due to the use of the ASTER system.Este artículo presenta una investigación en psicología cognitiva y ergonómica cuyo objetivo es analizar la actividad de gestión de una alerta epidemiológica. Manejar una alerta epidemiológica es una actividad médica distribuida y compleja que consiste en la gestión de un ambiente

  7. Total Counting and Spectroscopy in the Assessment of Alpha Radioactivity in Human Tissues; Determination de la Radioactivite Alpha des Tissus Humains par Dosage de l'Activite Globale et Spectroscopie; Obshchee izmerenie i spektroskopiya pri opredelenii al'fa-radioaktivnosti tkanej cheloveka; Evaluacion de la Actividad Alfa en los Tejidos Humanos por Recuento Global y Espectroscopia

    Energy Technology Data Exchange (ETDEWEB)

    Mayneord, W. V.; Hill, C. R. [Physics Department, Institute of Cancer Research, Royal Cancer Hospital, Clifton Avenue, Belmont, Surrey (United Kingdom)

    1964-10-15

    A seven-year programme of measurements of alpha radioactivity is briefly reviewed. The programme which was based initially on a sensitive and simple counting technique, using thin zinc cadmium sulphide screens, now employs in addition techniques of alpha spectroscopy developed for work with very large area low-specific-activity sources. These techniques are capable of measuring specific activities down to 10{sup -13} c/g and can in certain cases provide energy resolution of the order of 40 keV together with independent identification based on half-life measurements. Two alpha spectrometers are described which have been used on a wide variety of human and environmental materials. Particular attention has been given to the study of Po{sup 210}, now known to be present in a variety of foods and human tissues. Techniques are also described for the study of Pu{sup 239} in the atmosphere and examples given of .the results of measurements of low-level air contamination with this material. Techniques for the measurement of Pu{sup 239} in normal human tissues are described and some results given. Consideration is given to the contribution made by Po{sup 210} to the natural background radiation dose-rate in human bone and reproductive organs. It is shown that this contribution may be a significant fraction of the total dose received. (author) [French] L'auteur fait brievement le point de l'execution d'un programme septennal de mesures de la radioactivite alpha. Au debut, on procedait seulement a un dosage simple et sensible au moyen d'ecrans minces de sulfure de cadmium et de zinc; maintenant, ce procede est complete par l'emploi de methodes de spectroscopie alpha qui ont ete mises au point a l'occasion de travaux sur des sources a faible activite specifique et a tres grande surface. Ces methodes permettent de mesurer des activites specifiques aussi faibles que 10{sup -13} c/g, d'obtenir, dans certains cas, une resolution en energie de l'ordre de 40 keV et, independamment, d

  8. Demountable 4 {pi} Geiger Counters for Standardization and the Assay of Low-Activity Samples; Compteurs 4 {pi} GM demontables pour l'etalonnage et l'essai d'echantillons de faible activite; S'emnye schetchiki Gejgera na 4 {pi} dlya standartizatsii i otsenki prob nizkoj aktivnosti; Condatores GM 4 {pi} para la normalizacion de patrones radiactivos con baja actividad

    Energy Technology Data Exchange (ETDEWEB)

    Trott, N G; Bentley, R E; Burton, L K [Physics Department, Institute of Cancer Research, Royal Cancer Hospital, London, S. W. 3 (United Kingdom)

    1960-06-15

    propre, du premier. Construit en acier inoxidable, il a ete initialement concu pour l'essai de faibles activites dans les materiaux biologiques. Il peut cependant etre adapte a la mesure absolue de sources de faible niveau d'activite ( {<=} 100 cpm) car, avec une gaine de compteurs cosmiques en anticoincidence son mouvement propre s'abaisse jusqu'a 1-2 cpm. (author) [Spanish] Los autores dan cuenta de algunos perfeccionamiento s introducidos en la construccion de contadores Geiger-Mueller 4 {pi} y estudian las aplicaciones de estos aparatos en la medicion de patrones radiactivos utilizados en trabajos de radiologia. En los dos modelos de contadores Geiger-Mueller 4 {pi} que los autores describen los alambres anodicos pueden desmontarse facilmente, lo cual facilita su limpieza. Uno de los modelos de contadores se viene utilizando con exito desde hace varios anos para normalizar radionuclidos {beta}; se exponen algunos resultados de las comparaciones efectuadas con los patrones de otros laboratorios. Estos contadores tambien se han empleado, en combinacion con un dispositivo de ionizacion {gamma}, para determinar la emision {gamma} especifica (factor k) del Fe{sup 59}, Cs{sup 137} y Ir{sup 192}. El segundo modelo, de acero inoxidable, es una copia del primero, en menor escala; esta disenado para trabajar con bajas actividades ambiente y se destina principalmente a la determinacion cuantitativa de pequenas cantidades de substancias radiactivas contenidas en materiales biologicos. Tambien puede adaptarse para la medicion absoluta de fuentes radiactivas de bajo indice de recuento ({<=} 100 impulsos por minuto), pues si se le rodea de contadores de rayos cosmicos, montados en anticoincidencia , es posible estabilizar la actividad de fondo en 1 a 2 impulsos por minuto. (author) [Russian] Izlagayutsya nekotorye rezul'taty raboty po konstruirovani yu schetchikov Gejgera-Myuller a na 4 {pi}, a takzhe voprosa ikh ispol'zovaniya dlya izmereniya standartov radioaktivnost i v rabote s

  9. The determination of the thermodynamic activity of antimony in alpha-iron; Determination de l'activite thermodynamique de l'antimoine dans le fer alpha; Opredelenie termodinamicheskoj aktivnosti sur'my v al'fa-zheleze; Determinacion de la actividad termodinamica del antimonio en el hierro alfa

    Energy Technology Data Exchange (ETDEWEB)

    Tomilin, I A

    1962-01-15

    In this paper a method is suggested for determining the thermodynamic activity of antimony dissolved in alpha-iron, based on the study of antimony distribution between the two phases: liquid lead and solid iron. By this method, it was found that solid solutions of antimony in alpha-iron can be distinguished by positive divergences from the ideal state. Over a fairly wide range of concentrations, solutions of antimony in iron obey Henry's law. Special experiments on the distribution of antimony between lead and liquid iron showed that in the liquid state also the iron-antimony system is marked by positive divergences from the ideal state when small concentrations of antimony are present. The heat required for the solution of antimony in alpha-iron, and the excess partial molar entropy, were calculated from the activity temperature. The results were used for accurately locating the line showing the solubility limit of antimony in alpha-iron. Since alloys of antimony with iron were obtained by diffusion saturation and not by cooling from the liquid state, there was no liquefaction. Thus the lattice constant of the alloys and its relation to the alloy concentration could be reliably determined. The solubility limit established from X-ray data agrees with that obtained with Sb{sup 124}. (author) [French] Le memoire propose, pour determiner l'activite thermodynamique de l'antimoine dissous dans le fer alpha, une methode fondee sur l'etude de la distribution de l'antimoine entre deux phases: plomb liquide et fer solide. La methode a permis d'etablir que les solutions solides de l'antimoine dans le fer alpha se distinguent par des divergences positives par rapport a l'etat parfait. Dans une gamme assez etendue de valeurs de la concentration, les solutions de l'antimoine dans le fer sont regies par la loi de Henry. Des experiences sur la repartition de l'antimoine entre le plomb et le fer liquide ont montre qu'a l'etat liquide, le systeme ferantimoine est caracterise par

  10. IMPACT DU SECTEUR FINANCIER SUR L'ACTIVITE ...

    African Journals Online (AJOL)

    visant à adapter le secteur financier à l'économie de marché. Ces réformes ont pour objectif d'éliminer .... économiques (secteur privé et secteur public), deux comptes regroupant les institutions financières à savoir la .... Maroc.11 Nadia Bentaleb (2002)12 a étudié l'impact d'un investissement énergétique sur une économie ...

  11. Activity report 2002; Rapport d'activite 2002

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    This annual report presents the Arene (Regional Agency for the Environment and the new Energies in Ile de France) activities. The concerned topics are: the territory development and the local Agenda 21, the education and the awareness to the environment, the employment and the environment, the local and renewable energy, the environmental quality of the buildings, the environmental quality and economic activities, ''clean transports'' and sustainable mobilities, the Arene services. (A.L.B.)

  12. 2001 activity report; Rapport d'activite 2001

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    Managing radioactive waste for a better control in the future. The Quadrennial State/Andra contract, the double ISO 9001 (quality) and ISO 140001 (environment) certification and three diversified missions: industry, research and information. Those are the highlights of the activity report where the reader will be able to learn more about the Agency's major achievements in 2001. An appendix contains the management report of the Agency.

  13. Activity report 1998; Rapport d'activite 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    The ''Institut de Protection et de Surete Nucleaire'' (IPSN), carries out researches and expert studies needed to manage nuclear risks and their consequences on people and environment. These activities cover the installation safety, the radioactive matter transport, the public health and environmental control, the nuclear matters safety and control and the crisis situation management. The IPSN have got also a mission of public information and participates to international actions in the domain of scientific researches or expert's report. This annual report presents the highlights of the year 1998, information on staff, budgets and geographical situation. Then technical and scientific papers gathers the activities of the year covered by the IPSN: the ''Free Tribune'', installations and radioactive wastes safety, crisis and nuclear matter management, public health and environment control, international cooperation. (A.L.B.)

  14. L'oncogenetique: une activite nouvelle entre recherche et medicine

    NARCIS (Netherlands)

    Stemerding, Dirk; Bourret, P.; Koch, L.

    1998-01-01

    La mise au point récente de tests prédictifs pour certains cancers, parmi les plus fréquents, ouvre potentiellement à des changements fondamentaux de l’intervention médicale, et, par conséquent, à des changements du rôle et du sens de la médecine dans la société. Pour cette raison, l’étude des

  15. Activities of the control services; Activites des services du controle

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    This paper summarizes the control activities of the technical service of electric power and big dams: annual examinations, administrative instructions (draining, floods, granting renewal), decennial examinations etc. (J.S.)

  16. Progress report 1998; Rapport d'activites 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    The O.P.R.I. is in charge of environmental general surveillance and follow-up of natural exposures; To monitor the nuclear installations, it carries out samples campaigns. The technical follow-up of medical installations concerns it too. The workers radiation protection as well as the public protection are in its attributions. We find in particular, three sanitary studies: about the North Cotentin, (the question of excess of leukemia or not, and due or not to the facility of La hague) Nogent-sur-Marne (the case of a nursery school built on a old factory using radium), and the situation of populations living in French Polynesia, areas that have worried the public with alarmist announcements published in newspapers. All the results relative to the radiations measurements for 1998 appear in this progress report. (N.C.)

  17. Activity report 2000; Rapport d'activite 2000

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    This report is divided in four parts; the first concerns the areas covered by the directives 96/29 and 97/43; the second part is relative to the protection of exposed workers; the third part is devoted to the radiation protection of the population and the fourth and final part gives the expertise means and the scientific investment. (N.C.)

  18. Annual report 2004 - 2007; Rapport d'activite 2004 - 2007

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    This document details the activities, results and achievements of the CSNSM (Center of Nuclear Spectrometry and of Mass Spectrometry) for the 2004 - 2007 period. This document is divided into 8 sections as CNSMS is divided into 8 research groups: 1) nuclear structure, 2) induced fission and exotic nuclei, 3) nuclear astrophysics, 4) atomic masses, 5) solid state astrophysics (micro-meteorites), 6) mass spectrometry through accelerators, 7) solid state physics, and 8) physical and chemical effects of radiations (PCI). An important part of the activities of the CNSMS is linked to the Spiral-2 project that is today's major nuclear program in France. The main contributions are that to the Agata gamma tracking program, to the Desir platform, and to the Super-separator spectrometer S3. In astrophysics, most activities are focused on the understanding of gamma rays emission in the universe and on the enigma of the lithium-6/lithium-7 ratio. In solid state physics, important contributions have been made to the Edelweiss 1 and 2 programs dedicated to the detection of dark matter. PCI activities have focused on crystallo-chemistry of uranium dioxide, and on radiation effects in oxide ceramics, in carbides and in metallic nano-clusters. (A.C.)

  19. Composes organiques et activités antioxydantes de Ampelocissus ...

    African Journals Online (AJOL)

    SARAH

    31 juil. 2015 ... additives or the necessary supplements in the food preserving. Key words: Composed organic, activity antioxidant, Ampelocissus multistriata. INTRODUCTION. Sur le plan physiologique, les végétaux verts en cours de croissance utilisent l'énergie que leur fournit la lumière solaire captée par les feuilles.

  20. Progress report 1996 - 1997; Rapport d'activite 1996 - 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    This document reviews all the activities of the ISN (nuclear sciences institute in Grenoble) for 2 years. ISN's teams contribute to many international programs like ATLAS, DELPHI, GRAAL... 43 topics or important results are presented gathered into 6 themes: 1) quarks and leptons - astro-particles, 2) hadron physics, 3) nuclear matter and innovative concepts for nuclear energy, 4) theoretical physics, 5) technology transfer and valorization, and 6) instrumentation.

  1. Activity report 2004; Rapport d'activite 2004

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-04-01

    Constituted by a public and commercial establishment, the French National Radioactive Waste Management Agency (ANDRA) is responsible for the long term management of radioactive waste. This activity report presents the three missions of the ANDRA during the year 2004. The industrial mission deals with the Aube center disposal and the Manche center disposal facilities and the collection effort concerning the diffuse nuclear waste. The research mission focuses on the presentation of several topics: the repository design by studying various potential architectures, the reversibility and the safety assessment under operating conditions and the description of the behavior of repository at various space and time scales. The last mission concerns the information and the communication program. (A.L.B.)

  2. AMETH laboratories network activities; Activites du reseau de Laboratoires AMETH

    Energy Technology Data Exchange (ETDEWEB)

    Marimbordes, T.; Ould El Moctar, A.; Peerhossaini, H. [Nantes Univ., Ecole Polytechnique, UMR CNRS 6607, Lab. de Thermocinetique, 44 (France)] [and others

    2000-07-01

    The AMETH laboratories are a network for the improvement of thermal exchanges for one or two phases. This meeting of the 15 november 2000, dealt with the activities of this network of laboratories in the following topics: thermal-hydrodynamic instabilities and control of the limit layer; transfers with change in the liquid-vapor phase; transfers with change in the solid-liquid phase. Ten papers were presented. (A.L.B.)

  3. RTE activity report 2005; RTE rapport d'activite 2005

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    The RTE (electric power transport network) is the french manger of the electric power transport. This activity report provides information on the company results for the year 2005: panorama of the year, management and organization, the place of RTE in the european market, the customers, the industrial tool, the environment the human resources, the international activity and the management report. (A.L.B.)

  4. Activity report 2004; Rapport d'activite 2004

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-04-01

    Constituted by a public and commercial establishment, the French National Radioactive Waste Management Agency (ANDRA) is responsible for the long term management of radioactive waste. This activity report presents the three missions of the ANDRA during the year 2004. The industrial mission deals with the Aube center disposal and the Manche center disposal facilities and the collection effort concerning the diffuse nuclear waste. The research mission focuses on the presentation of several topics: the repository design by studying various potential architectures, the reversibility and the safety assessment under operating conditions and the description of the behavior of repository at various space and time scales. The last mission concerns the information and the communication program. (A.L.B.)

  5. 1996 Activity report; Rapport d`activite 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    The 1996 activity report of the Direction for Waste Management of the CEA, is presented. Its activities have been developed in the framework of the general CEA cleaning plan, and include the management of wastes generated before 1992 in R and D CEA facilities, the disposal of spent fuels generated by research reactors (Orphee and Siloe) or prototype reactors (EL4 at Brennilis), and the dismantling and cleaning of obsolete facilities such as the plutonium radiochemistry building at Fontenay-aux-Roses and the pilot workshop at Marcoule

  6. Report of Activity, 1997; Rapport d'activite, 1997

    Energy Technology Data Exchange (ETDEWEB)

    Lacoste, Andre-Claude; Livolant, Michel [eds.] [Inst. de Protection et de Surete Nucleaire, CEA Centre d' Etudes de Fontenay-aux-Roses, 92 (France)

    1998-07-01

    The Institute of Nuclear Protection and Safety (Institut de Protection et de Surete Nucleaire) - IPSN carries out research and expert studies needed in managing nuclear risk and consequences of nuclear events on population and environment, i.e. supervises the safety of installations, the prevention and study of accidents, the human health and environmental conditions, the safety of transport and has also the task of organizing the management of the crisis situations. IPSN has the mission of informing the public and participates in numerous international actions. Thus, since 1989 IPSN and its German counterpart, GRS, co-operate towards improving of the nuclear safety in Europe and developing a common approach of international issues. As acting for public authorities (government departments in charge with industry, environment, health or labor), IPSN grants technical authorizations on request of DSIN exploiters. The IPSN personnel amounts up to 1300 employees of whom around two thirds are engineers, researchers, physicians, agronomists, and veterinarians. This IPSN annual report contains in the 'Free Tribune' section two general papers entitled: 'The federalist role of research at IPSN' by Catherine Lecompte and 'The dose, a central issue in radioprotection debates' by Annie Sugier. Then five sub-reports follow: 1.The safety of nuclear facilities and radioactive wastes; 2.Crisis management; 3. The management of sensitive materials (protection and control of sensitive materials and safety analysis of the radioactive materials transport); 4.Protection of human health; 5.Environment protection. The report also presents the international activities, the cooperation IPSN/GRS, the budget, the staff and the human resource policy and the communication activity.

  7. Progress report 1997; Rapport d`activite 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-12-31

    The vocation of O.P.R.I. is to prevent the risks coming from ionizing radiations and to develop the means necessary to limit their effects. This protection concerns the workers and the population. Its action covers the monitoring of environment, the registering, centralizing and exploiting of dosimetric surveillance of workers. (N.C.)

  8. Activities of the control services; Activites des services du controle

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    This paper summarizes the decennial inspections of French dams carried out by the Regional Direction of Industry, Research and Environment (DRIRE) during the forth quarter of 1996. The paper reports on some important facts (rivers in spate) and administrative instructions (draining preparation, flooding instructions, alarm systems, granting renewing). (J.S.)

  9. Activity report 2000; Rapport d'activite 2000

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    This report is divided in four parts; the first concerns the areas covered by the directives 96/29 and 97/43; the second part is relative to the protection of exposed workers; the third part is devoted to the radiation protection of the population and the fourth and final part gives the expertise means and the scientific investment. (N.C.)

  10. Progress report 1997; Rapport d`activite 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-12-31

    The vocation of O.P.R.I. is to prevent the risks coming from ionizing radiations and to develop the means necessary to limit their effects. This protection concerns the workers and the population. Its action covers the monitoring of environment, the registering, centralizing and exploiting of dosimetric surveillance of workers. (N.C.)

  11. Progress report 2003 - coal; Rapport d'activite 2003 - charbon

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    This report presents the activities of the Group ''Charbonnages de France'' in 2003. The administration council is detailed in the new structure and organization. It concerns also the end of the industrial activities, the social policy, the mine sites remediation, the industrialization of mine regions, the financial results and key data. (A.L.B.)

  12. Activity report 1999; Rapport d'activites 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    The aim of this report is to outline the main developments of the ''Departement des Reacteurs Experimentaux'', (DRE) during the year 1999. DRE is one of the Department of the ''Direction des Reacteurs Nucleaires'', itself depending of the CEA Institution. After a presentation of the year highlights, this report gathers the main research and development programs. The second part concerns the production of radioisotopes, the silicon doping, the neutron radiography, the Orphee experiments and the activation analysis. The installations management, the closed reactors improvement program and the effluents and wastes processing of Grenoble, are presented in the other parts. Data on staff, budget and safety are also provided. (A.L.B.)

  13. Progress report 1998; Rapport d'activites 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    The O.P.R.I. is in charge of environmental general surveillance and follow-up of natural exposures; To monitor the nuclear installations, it carries out samples campaigns. The technical follow-up of medical installations concerns it too. The workers radiation protection as well as the public protection are in its attributions. We find in particular, three sanitary studies: about the North Cotentin, (the question of excess of leukemia or not, and due or not to the facility of La hague) Nogent-sur-Marne (the case of a nursery school built on a old factory using radium), and the situation of populations living in French Polynesia, areas that have worried the public with alarmist announcements published in newspapers. All the results relative to the radiations measurements for 1998 appear in this progress report. (N.C.)

  14. Activity report 1998; Rapport d'activite 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    The ''Institut de Protection et de Surete Nucleaire'' (IPSN), carries out researches and expert studies needed to manage nuclear risks and their consequences on people and environment. These activities cover the installation safety, the radioactive matter transport, the public health and environmental control, the nuclear matters safety and control and the crisis situation management. The IPSN have got also a mission of public information and participates to international actions in the domain of scientific researches or expert's report. This annual report presents the highlights of the year 1998, information on staff, budgets and geographical situation. Then technical and scientific papers gathers the activities of the year covered by the IPSN: the ''Free Tribune'', installations and radioactive wastes safety, crisis and nuclear matter management, public health and environment control, international cooperation. (A.L.B.)

  15. Progress report 1998 - 1999; Rapport d'activite 1998 - 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    This document reviews the activities of CPPM (center of particle physics in Marseille) for the years 1998 - 1999. The main axis of research are particle physics, elementary components of the matter and their interactions, and astro-particles. The laboratory takes part in international collaborations concerning experiments at CERN, DESY (Hamburg) and Fermilab (Chicago), it also contributes to the design of particle detectors for the large hadron collider (LHC) and for the undersea detection of cosmic neutrinos (Antares). The activities of CPPM have been reported under 8 topics : 1) the Aleph experiment, 2) the Antares project, 3) the Atlas experiment, 4) the Cplear experiment (dedicated to the study of CP, T and CPT symmetries in the system of neutral kaons), 5) the DO experiment (whose aim is to detect supersymmetric particles at the Tevatron), 6) the H1 detector (its main aim is the study of the proton structure at the Hera electron-proton collider), 7) LHCb (it is a second generation experiment dedicated to the study of CP breaking and rare decays in the beauty sector), and 8) Susy, Susy is a working group inside the CNRS, it gathers theoricians and experimenters from different backgrounds, its aim is to study supersymmetry in order to catch a glimpse of the physics beyond the standard model. (A.C.)

  16. Progress report 1998 - 1999; Rapport d'activite 1998 - 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    This report reviews the activities of the laboratory for the years 1998 and 1999. Laboratory's activities are driven by an important international program on particle physics and astro-particles. 11 topics are presented: 1) physics at LHC: the ATLAS experiment, 2) the search for a new physics at LEP : DELPHI experiment, 3) DIRAC experiment, 4) neutrino oscillations: NOMAD experiment, 5) TONIC experiment, 6) the experiments H1 at HERA, 7) CP breaking: BABAR experiment, 8) DO experiment at the Tevatron, 9) high energy gamma radiation sources: CAT experiment, 10) supernova, and 11) the project of the AUGER observatory.

  17. CEREM activity report; Rapport d`activite CEREM

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-12-31

    This 1997 issue of the activity report of the CEREM (CEA) gives a general overview of the CEREM organization, activities and human resources with some budgetary information. The main activities described concern the materials fabrication for the nuclear and automotive industries, the powders metallurgy (molding by injection, cold pressing modelling), the simulation of the hot and cold working processes, the surface treatments, the joining (brazed joints, sintering, welding), the electrochemical storage of the energy (fuel cells, lithium accumulators), the corrosion and the physico-chemistry of fluids, the mechanical properties and the cracks, the robots for nuclear units dismantlement, the alteration mechanisms of properties under different solicitations (thermal, mechanical, chemical, irradiation) and the solidification-crystallogenesis. (O.M.)

  18. Report of Activity 1997; Rapport d`activite 1997

    Energy Technology Data Exchange (ETDEWEB)

    Menjon, Gerard [ed.; Direction des Etudes et Recherches, Electricite de France, 1 Avenue de General de Gaulle, F-92141 Clamart cedex (France)

    1998-04-01

    The document is a report of activity of the Direction of Studies and Research of the France`s Electricity Authority (Electricite de France) on 1997. It contains the following six main sections: 1. development; 2. environment; 3. development and managing of production-transport system; 4. production; 5. international relations; 6. future developments. The second section deals with the air and water quality, reduction of energy network impact on environment and the case of renewable energies. The following section is devoted to the research and development problems raised by the management of production-transport system. The section number four reports about the experience obtained in the operation of N4 stage, particularly, in the conception of REP 2000. Also mentioned are progress in the field of virtual reality used in professional formation, robot intervention in case of leaks in reactor vessel, multi-recycling of plutonium in PWR, etc. The fifth section reports about the international collaboration in the field of superconductivity, superconductor cables, combined cycles with integrated gasification of carbon and biomass and energy programs in Morocco and China. Finally, it is mentioned the launching of the Galaxie-server in charge with the documentation management of EDF 66 figs., 1 tab.

  19. Progress report 2000 / 2001; Rapport d'activite 2000 / 2001

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    The 2000-2001 period has seen many facts of importance for the EURATOM-Cea association. The first outstanding fact is the positive evolution of the ITER project because of both the willingness of the partners and the French proposition to the European Union to consider the Cadarache site as the European site. The second outstanding fact is both the installation on Tore-Supra of a new generation of plasma-facing component: the Ciel project and the launch of the Cimes project whose aim is to allow Tore-Supra to reach discharge up to 1000 s. The third outstanding fact is the continuation of experiments in Jet after 1999, end date of the Jet Joint Undertaking. These new provisions aim at maintaining in activity the spearhead of the European program, waiting for a clarification of the ITER situation. Among the results obtained in Jet operations, we can quote those having a direct influence on the ITER performances: - the beneficial effect of a high triangularity on the ELM (edge localized modes) and on the confinement factor at high density, - the real time control of advanced tokamak discharges at quasi steady state, and the theoretical explanation of the current hole (in lower hybrid advanced scenarios, a region with vanishing current density that appears in the plasma centre). (A.C.)

  20. Progress report 1996 - 1997; Rapport d'activite 1996 - 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    This report reviews the activities of the laboratory for the years 1996 and 1997. Laboratory's activities are driven by an important international program on particle physics and astro-particles. 9 topics are presented: 1) physics at LHC: the ATLAS experiment, 2) the search for a new physics at LEP : DELPHI experiment, 3) neutrino oscillations: NOMAD and TONIC experiments, 4) the experiments H1 at HERA, 5) CP breaking: BABAR experiment, 6) DO experiment at the Tevatron, 7) gamma radiation sources: CAT experiment, 8) supernova, and 9) the project of the AUGER observatory.

  1. Activites antimicrobiennes des extraits de trios plantes medicinales ...

    African Journals Online (AJOL)

    Les propriétés antimicrobiennes des extraits hydroéthanoliques des feuilles de Spondias mombin L. (Anacardiaceae), de Psidium guajava L. (Myrtaceae) et de Pterocarpus santalinoides L. (Papilionadeae) sont étudiées afin de justifier leur utilisation pour le traitement des infections et toxi-infections alimentaires au Bénin.

  2. Annual report 2007; Rapport d'activite 2007

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    The National Agency for the Radioactive Wastes Management (ANDRA), is public company, with an industrial and commercial status. This document presents the activities of the year 2007. It details the organization, the personnel, the world cooperation, the research programs, the safety, the public information and relation, the financial situation and the different sites. (A.L.B.)

  3. Progress Report 1994; Rapport d`activite 1994

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-12-31

    This document is the 1994 annual progress report of the CEA-Direction of Waste Management (DGD). It comprises four chapters. The first chapter is a general presentation of radioactive wastes, of the management of liquid effluents, solid wastes, sealed sources, of the relations with the ANDRA (The French Agency for the Management of Radioactive Wastes), and of the research and development studies in progress for the improvement of waste management. The second chapter concerns the spent fuels and their reprocessing, in particular AGR and PWR type reactor fuels, the ``Caramel`` fuel from Osiris reactor and the cover elements from the Rapsodie reactor core. The long time storage of ancient fuels is also discussed. The third chapter concerns the dismantling of decommissioned installations, the actions in progress and the planning of dismantling actions up to the year 2000. Chapter four is devoted to the management of wastes from the Direction of Military Applications (DAM), the actions in progress in the different DAM centers and the cleansing projects at Marcoule plant. (J.S.). 5 figs., 28 tabs., 21 photos., 3 appendix.

  4. Activity report 2001; Rapport annuel d'activite 2001

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    The DED, Department of the Wastes Studies, part of the Direction of the Nuclear Energy of the CEA, regroups knowledge in the domain of the chemistry, the biochemistry, the process measures and simulation engineering applied to the radioactive wastes management. This annual report presents for the year 2001 the missions, the organization, the scientific collaborations, the research programs and the publications of the Department. (A.L.B.)

  5. Calendrier des activités (juillet 2003 - juin 2004

    Directory of Open Access Journals (Sweden)

    2003-11-01

    Full Text Available 200330 juin-25 juilletAuxerre, Stage : l’archéologie du bâti religieux, l’église Saint-Pierre de Saint-Père (Yonne.3-5 septembreCluny, Déléage, 1903-1944 : fondateur de l’histoire de la société médiévale bourguignonne, Alain Guerreau15-17 septembreDijon, Couleur de temps, fragments d’histoires : peintures murales médiévales, Daniel Russo26-27 septembreAuxerre, Sacralités royales en péninsule ibérique : formes, limites, modalités - VIIe-XVe siècles, Patrick Henriet27-31 octobreSão Paulo. Le M...

  6. Astronomy Outreach Activites through the University of California, Irvine

    Science.gov (United States)

    Thornton, Carol E.; Smecker-Hane, T.

    2006-06-01

    We discuss our efforts to bring astronomy to local schools and classrooms through the UCI Astronomy Outreach program. This is part of a faculty-led outreach program entitled Outreach in Astronomy & Astrophysics with the UCI Observatory, funded by an NSF FOCUS grant to the University of California, Irvine. We primarily schedule visits with K-12 teachers in the Compton, Newport/Mesa and Santa Ana Unified School Districts, but often see scout troops and classes from other nearby schools. Often these schools don’t have the funding needed to bring their students to us, so we take small, portable telescopes to the schools, for both day and night visits, to give the students a chance to not only see a telescope, but to use one as well. For the schools that can find transportation to bring their students to campus, we include a tour of our observatory dome housing a 24-inch telescope used for outreach events and undergraduate research. In addition, we give interactive lectures and demonstrations to involve the students and get them excited about careers in science and science in general. We find that we help stimulate discussions before and after our visits, which can often help start or end a unit of astronomy within the schools’ curricula. We show feedback from teachers we have visited including the strengths of the program and suggestions/improvements for the future. For more information, see http://www.physics.uci.edu/%7Eobservat/tour_program.htmlFunding provided by NSF grant EHR-0227202 (PI: Ronald Stern).

  7. financement des activites agricoles et reduction de la pauvrete

    International Development Research Centre (IDRC) Digital Library (Canada)

    SANDRA KENDO

    INTRODUCTION. RELATION ENTRE ACTEURS FINANCIERS ET SECTEUR. AGRICOLE. ○ Evolution de la situation économique (Répression financière – Situation de crise – Libéralisation financière). ○ Exclusion du secteur bancaire. ○ Financement restreint à une petite poignée de filière agricole (Cacao, Café et coton).

  8. Bactericidal activites of selected macrofungi extracts against Staphylococcus aureus

    Directory of Open Access Journals (Sweden)

    Nikolovska-Nedelkoska Daniela A.

    2017-01-01

    Full Text Available The increasing of the antibiotic resistance exhibited by pathogenic microorganisms has resulted in research directed toward evaluation of novel sources of antimicrobial compounds. Previous studies have indicated that macrofungi, as a specific response to the natural hostile environment, produce secondary metabolites with antimicrobial properties. In this study, antimicrobial activities of the extracts from six wild mushrooms: Amanita echinocephala, Russula medulata, Cerena unicolor, Hericium erinaceus, Ishnoderma benzoinum and Laetiporus sulphureus were evaluated against Grampositive bacterium Staphylococcus aureus. The antimicrobial potential of the methanolic mushroom extracts was investigated by the microdilution method. Antimicrobial activity was observed in all species included in the study. All the extracts that demonstrated inhibitory activities were further tested for bactericidal activity and minimum bactericidal concentration (MBC values were determined. The tested microorganism was most sensitive to the examined extracts from the polypore fungi C. unicolor and H. erinaceus. The highest bactericidal activity was obtained in the extracts from the species C. unicolor (MBC=1.563 mg/mL. The experimental results revealed that the methanolic extract of C. unicolor possessed significant bactericidal activity. The findings suggest the potential use of this wild mushroom as antimicrobial agent.

  9. Activity report 1999; Rapport d'activites 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    The aim of this report is to outline the main developments of the ''Departement des Reacteurs Experimentaux'', (DRE) during the year 1999. DRE is one of the Department of the ''Direction des Reacteurs Nucleaires'', itself depending of the CEA Institution. After a presentation of the year highlights, this report gathers the main research and development programs. The second part concerns the production of radioisotopes, the silicon doping, the neutron radiography, the Orphee experiments and the activation analysis. The installations management, the closed reactors improvement program and the effluents and wastes processing of Grenoble, are presented in the other parts. Data on staff, budget and safety are also provided. (A.L.B.)

  10. Activity annual report 1998; Rapport annuel d'activite 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    The aim of this report is to outline the main developments of the ''Departement d'entreposage et de stockage des dechets'' (DESD), during the year 1998: developments in terms of structure, scientific research programs, publications and contracts. DESD is one of the department of the ''Direction du Cycle du Combustible'' (DCC), itself depending of the CEA Institution. This report is divided in nine chapters which gather results of studies and research programs in the following domains: liquid wastes processing, solid wastes processing, wastes packaging, measures analysis and characterization, long time storage, packages behaviour at long-dated, chemistry and environmental transport of the storage, simulation and environment. (A.L.B.)

  11. Passive wireless sensor systems can recognize activites of daily living.

    Science.gov (United States)

    Urwyler, Prabitha; Stucki, Reto; Muri, Rene; Mosimann, Urs P; Nef, Tobias

    2015-08-01

    The ability to determine what activity of daily living a person performs is of interest in many application domains. It is possible to determine the physical and cognitive capabilities of the elderly by inferring what activities they perform in their houses. Our primary aim was to establish a proof of concept that a wireless sensor system can monitor and record physical activity and these data can be modeled to predict activities of daily living. The secondary aim was to determine the optimal placement of the sensor boxes for detecting activities in a room. A wireless sensor system was set up in a laboratory kitchen. The ten healthy participants were requested to make tea following a defined sequence of tasks. Data were collected from the eight wireless sensor boxes placed in specific places in the test kitchen and analyzed to detect the sequences of tasks performed by the participants. These sequence of tasks were trained and tested using the Markov Model. Data analysis focused on the reliability of the system and the integrity of the collected data. The sequence of tasks were successfully recognized for all subjects and the averaged data pattern of tasks sequences between the subjects had a high correlation. Analysis of the data collected indicates that sensors placed in different locations are capable of recognizing activities, with the movement detection sensor contributing the most to detection of tasks. The central top of the room with no obstruction of view was considered to be the best location to record data for activity detection. Wireless sensor systems show much promise as easily deployable to monitor and recognize activities of daily living.

  12. CEREM activity report; Rapport d`activite CEREM

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    This 1997 issue of the activity report of the CEREM (CEA) gives a general overview of the CEREM organization, activities and human resources with some budgetary information. The main activities described concern the materials fabrication for the nuclear and automotive industries, the powders metallurgy (molding by injection, cold pressing modelling), the simulation of the hot and cold working processes, the surface treatments, the joining (brazed joints, sintering, welding), the electrochemical storage of the energy (fuel cells, lithium accumulators), the corrosion and the physico-chemistry of fluids, the mechanical properties and the cracks, the robots for nuclear units dismantlement, the alteration mechanisms of properties under different solicitations (thermal, mechanical, chemical, irradiation) and the solidification-crystallogenesis. (O.M.)

  13. Les activités de conservation des lémuriens par le Groupe d’Etude et de Recherche sur les Primates de Madagascar (GERP Conservation activities of lemurs by the Madagascar Primate Research Group (GERP- Groupe d’Etude et de Recherche sur les Primates de Madagascar

    Directory of Open Access Journals (Sweden)

    Rose Marie Randrianarison

    2011-10-01

    Full Text Available Le Groupe d’Etude et de Recherche sur les Primates de Madagascar, une association de conservation, a été créée en 1994 grâce à l’initiative des Enseignants Chercheurs et étudiants du Département de Paléontologie et d’Anthropologie Biologique et du Département de Biologie Animale de l’Université d’Antananarivo. Le GERP regroupe actuellement des membres scientifiques multidisciplinaires Malgaches et étrangers dont la majorité d’entre eux est constituée par des primatologues. Les principales actions du GERP se focalisent sur les travaux de recherche sur les Primates Prosimiens de Madagascar, l’établissement de leur plan de conservation, la découverte de nouvelles espèces de lémuriens, la translocation et le transfert des lémuriens vivant dans des milieux défrichés ou précaires, le suivi et l’abondance des lémuriens ainsi que la révision de leurs aires de distribution. Les résultats des recherches effectuées sur la conservation ont permis de publier des articles dans des revues de renommée nationale et internationale sur la Primatologie. En outre, le renforcement de capacité et l’éducation de la communauté de base, des systèmes éducatifs primaires et supérieurs sur la conservation des lémuriens et l’appui aux activités de développement durable de la population locale s’avèrent nécessaires pour que la conservation des lémuriens soit pérenne.The Madagascar Primate Research Group (GERP - Groupe d’Etude et de Recherche sur les Primates de Madagascar is a conservation-focused association created in 1994 by the initiative of researcher lecturers and students from the Department of Paleontology and Biological Anthropology and the Department of Animal Biology of the University of Antananarivo. The GERP membership consists of multidisciplinary scientists, both Malagasy and foreign, the majority of whom are primatologists. The principle actions of the association are focused on research on the

  14. Une activité touristique et de loisir « amphibie » entre espaces de pratiques et territoires de gestion : la plaisance Uma atividade turística e de lazer “anfíbia” entre espaços de práticas e territórios de gestão : o nautismo

    Directory of Open Access Journals (Sweden)

    Ewan Sonnic

    2010-03-01

    Full Text Available À l’ère du tourisme de masse et des loisirs, la plaisance est une expression particulière de territorialité à travers divers équipements sur le trait de côte (ports, marinas, chantiers navals, etc. et des flux tant maritimes que terrestres (itinéraires en mer des plaisanciers entre ports, liaisons domiciles-points d’embarquement, navettes domicile-travail des professionnels de la plaisance, etc.. Ce caractère « amphibie » confère à la plaisance une place atypique parmi les activités touristiques.En France, plus que d’autres loisirs, la plaisance est écartelée entre des espaces vécus, résultant pour l’essentiel des parcours des plaisanciers (bassins de navigation, bassins de croisière, bassins de plaisance…, et des territoires administratifs relevant d’une logique bien différente à terre (collectivités territoriales, subdivisions des affaires maritimes comme en mer (eaux territoriales, zone d’exercice du droit de police.Conformément à bien des espaces vécus, les aires de pratiques de la plaisance sont particulièrement complexes. Outre leur caractère chronique, compte tenu du caractère essentiellement saisonnier de l’activité, ces territoires vont dépendre de la diversité des pratiques plaisancières (pêche-promenade, balade en mer, croisière côtière, croisière hauturière, voile sportive…, des limites conscientes voire inconscientes que se fixe chaque plaisancier, du déterminisme physique (obstacles à la navigation, vents, courants…, de la réglementation en vigueur qui interdit la navigation au-delà d’une certaine distance d’un abri selon les différentes catégories de navires, etc. Pour leur part, les territoires de gestion relèvent d’une logique largement continentale, même en avant du trait de côte. L’inadéquation entre espaces de pratiques et de gestion est telle que plusieurs acteurs (collectivités territoriales, services déconcentrés de l’Etat, bureaux d

  15. A Quick Method of Measuring and Analyzing {beta} Emitters in Solution of Very Low-Level Specific Activity; Remarques sur une technique rapide de mesure et d'analyse d'emetteurs {beta} en solution de tres faible activite specifique; Zamechaniya o bystroj tekhnike izmereniya i analize izluchatelej {beta}-chastits v rastvore s ochen' slaboj spetsificheskoj aktivnost'yu; Observaciones sobre un metodo rapido de medicion y analisis de emisores {beta} en soluciones de muy baja actividad especifica

    Energy Technology Data Exchange (ETDEWEB)

    Le Gallic, Y; Grinberg, B; Thenard, M [Centre d' Etudes Nucleaires de Saclay (France)

    1960-06-15

    1. Description of a measuring instrument with a low-level background, for measuring radioactive materials in liquid form. Essentially the instrument consists of two flat counters, each with one hole, and one flat counter with two holes, mounted parallel to each other and enclosed in a casing of counters mounted in anti-coincidence with the inner counter. 2. Possible applications of the method: a) To measure much lower-level specific activities than with liquid counters, and particularly soft {beta} emitters; b) To detect radioactive impurities within a radionuclide (e. g. 2/10,000 of P{sup 32} in S{sup 35}); c) For most radionuclides, to measure, without previous concentration, specific activities corresponding to the tolerance limits permitted at present. (author) [French] 1. Description d'un dispositif de mesure a faible mouvement propre, destine a la mesure de produits radioactifs sous forme liquide, et qui comprend essentiellement 2 compteurs plats a une fenetre, et un compteur plat a deux fenetres, disposes parallelement et enfermes a l'interieur d'une gaine de comp- teurs montes en anticoincidence avec les premiers. 2. Possibilites et domaines d'utilisation de la methode: a) permet de mesurer des activites specifiques beaucoup plus faibles qu'avec les compteurs a liquides, particulieremen t avec les emetteurs {beta} mous; b) permet de deceler des impuretes radioactives au sein d'un radioelement (ex. 2/10.000 de P{sup 32} dans S{sup 35}); c) permet, pour la plupart des radioelements, de mesurer, sans concentration prealable, des activites specifiques egales respectivement aux limites de tolerance aujourd'hui admises. (author) [Spanish] 1. Los autores describen un dispositivo de medicion poco sensible a la actividad de fondo, destinado a medir la radiactividad de sustancias liquidas. El dispositivo consta fundamentalment e de dos contadores planos provistos de una ventana y de un contador plano con dos ventanas, disquestos paralelamente en el interior de una

  16. The activity of {gamma}-emitters as measured by ionisation chambers the determination of the specific emission coefficient {gamma} for some radio-elements (1961); Mesure de l'activite des emetteurs {gamma} par chambre d'ionisation. Determination du coefficient specifique d'emission {gamma} de quelques radioelements (1961)

    Energy Technology Data Exchange (ETDEWEB)

    Engelmann, J. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1962-06-15

    chambre d'ionisation gamma, permettant soit de mesurer l'activite de sources radioactives, soit de determiner le coefficient specifique d'emission {gamma} (ou coefficient K) d'un radioelement determine. Les chambres d'ionisation etudiees appartiennent a deux categories: chambre-cavites en graphite, et chambres a puits {gamma}. Pour les mesures effectuees avec une chambre-cavite, on a calcule les differents facteurs do correction dont il faut tenir compte, en particulier les corrections de geometrie et d'hygrometrie. Les corrections d'absorption et d'autoabsorption ont amene a introduire la notion 'd'energie efficace {gamma}' d'un radioelement. Dans le cas des chambres a puits, on a montre qu'une forme appropriee des 'electrodes permettait d'ameliorer leurs performances. Une des chambres decrites permet la mesure des emetteurs {beta} par le rayonnement de freinage associe. Pour la determination du coefficient K de quelques radioelements, il s'est avere commode d'utiliser une chambre a puits a parois de graphite, les mesures etant effectuees par comparaison avec un etalon de radium. La validite de la methode a ete verifiee avec quelques radioelements pour lesquels la valeur du coefficent K etait deja bien connue ({sup 24}Na, {sup 60}Co, {sup 131}I, {sup 198}Au). Pour d'autres radioelements, les valeurs suivantes ont ete obtenues (exprimees en r cm{sup 3} mc{sup 1} h{sup 1}): {sup 51}Cr: 0,18; {sup 56}Mn: 8,8; {sup 65}Zn: 3,05; {sup 124}Sb: 9,9; {sup 134}Cs: 9,3; {sup 137}Cs: 3,35; {sup 141}Ce: 0,46; {sup 170}Tm: 0,023; {sup 192}Ir: 24,9; {sup 203}Hg: 1,18; Ces valeurs ont ete corrigees de la contribution qu'apportent a la dose les rayonnements de fluorescence eventuellement emis par la source, sauf dans le cas du {sup 170}Tm. Dans la derniere partie de ce travail, on a compare les performances des differents dispositifs electrometriques utilises. (auteur)

  17. The activity of {gamma}-emitters as measured by ionisation chambers the determination of the specific emission coefficient {gamma} for some radio-elements (1961); Mesure de l'activite des emetteurs {gamma} par chambre d'ionisation. Determination du coefficient specifique d'emission {gamma} de quelques radioelements (1961)

    Energy Technology Data Exchange (ETDEWEB)

    Engelmann, J [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1962-06-15

    'ionisation gamma, permettant soit de mesurer l'activite de sources radioactives, soit de determiner le coefficient specifique d'emission {gamma} (ou coefficient K) d'un radioelement determine. Les chambres d'ionisation etudiees appartiennent a deux categories: chambre-cavites en graphite, et chambres a puits {gamma}. Pour les mesures effectuees avec une chambre-cavite, on a calcule les differents facteurs do correction dont il faut tenir compte, en particulier les corrections de geometrie et d'hygrometrie. Les corrections d'absorption et d'autoabsorption ont amene a introduire la notion 'd'energie efficace {gamma}' d'un radioelement. Dans le cas des chambres a puits, on a montre qu'une forme appropriee des 'electrodes permettait d'ameliorer leurs performances. Une des chambres decrites permet la mesure des emetteurs {beta} par le rayonnement de freinage associe. Pour la determination du coefficient K de quelques radioelements, il s'est avere commode d'utiliser une chambre a puits a parois de graphite, les mesures etant effectuees par comparaison avec un etalon de radium. La validite de la methode a ete verifiee avec quelques radioelements pour lesquels la valeur du coefficent K etait deja bien connue ({sup 24}Na, {sup 60}Co, {sup 131}I, {sup 198}Au). Pour d'autres radioelements, les valeurs suivantes ont ete obtenues (exprimees en r cm{sup 3} mc{sup 1} h{sup 1}): {sup 51}Cr: 0,18; {sup 56}Mn: 8,8; {sup 65}Zn: 3,05; {sup 124}Sb: 9,9; {sup 134}Cs: 9,3; {sup 137}Cs: 3,35; {sup 141}Ce: 0,46; {sup 170}Tm: 0,023; {sup 192}Ir: 24,9; {sup 203}Hg: 1,18; Ces valeurs ont ete corrigees de la contribution qu'apportent a la dose les rayonnements de fluorescence eventuellement emis par la source, sauf dans le cas du {sup 170}Tm. Dans la derniere partie de ce travail, on a compare les performances des differents dispositifs electrometriques utilises. (auteur)

  18. Study of the catalytic activity of pure or cerium-containing thoria in the catalytic oxidation of carbon monoxide (1963); Etude de l'activite catalytique de la thorine pure ou contenant du cerium. Dans l'oxydation de l'oxyde de carbone (1963)

    Energy Technology Data Exchange (ETDEWEB)

    Veron, J [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1963-07-01

    nous avons obtenus, tant en ce qui concerne la chimisorption des differents gaz que la conductivite de l'adsorbant et la cinetique de la reaction d'oxydation proprement dite, nous semblent constituer un ensemble tres coherent. Rappelons en effet que: 1) L'oxyde de carbone s'adsorbe, alors que l'oxygene ne s'adsorbe pas, sur une surface nue de catalyseur. 2) L'oxygene s'adsorbe sur une couche d'oxyde de carbone prealablement adsorbe, et reagit alors pour donner du gaz carbonique (l'oxygene du reseau ne jouant aucun role). Ce comportement est habituel pour un semi-conducteur p. Nous avons effectivement verifie que tel etait bien le type de semi-conductivite auquel nous avions a faire, et les interactions des gaz et du solide peuvent etre ecrites: (1) CO{sub (g)} {r_reversible} CO{sup +}{sub (a)} + e{sup -} (2) CO{sup +} 1/2 O{sub 2(g)} + 2 e{sup -} {yields} CO{sup -}{sub 2(a)} (3) CO{sup -}{sub 2(a)} {r_reversible} CO{sub 2(g)} + e{sup -} L'equation cinetique ecrite en supposant que l'etape (2) est la plus lente, permet de retrouver correctement les resultats experimentaux qui s'expriment par: dp / dt = k (P{sup 0.3}{sub CO} x P{sup 0.5}{sub O{sub 2}}) / (1+ k' x P{sub CO{sub 2}}) L'influence de l'addition de petites quantites de cerium s'explique egalement de maniere logique a partir de ce schema: il y a en effet a la fois diminution de la conductivity et augmentation de l'activite catalytique, ce qui est caracteristique selon VOLKENSTEIN [52] d'une reaction determinante de type n s'effectuant sur un semi-conducteur de type p. Nous pensons que ces premiers resultats pourraient avantageusement etre etayes par l'etude de la thorine prepares par d'autres voies, et dopee de maniere differente. (auteur)

  19. Nuclear isomerism in fission fragments produced by the spontaneous fission of {sup 252}Cf; Isomerisme nucleaire dans les fragments de fission produits dans la fission spontanee du {sup 252}Cf

    Energy Technology Data Exchange (ETDEWEB)

    Gautherin, C

    1997-09-01

    This thesis is devoted to the study of the nuclear structure of neutron-rich nuclei, via the search of isomeric nuclear states. Neutron-rich nuclei were produced in the spontaneous fission of {sup 252}Cf. The experimental study of isomeric states in these nuclei was performed with the {gamma}-array EUROGAM II, coupled to an additional and original fission fragment detector composed by photovoltaic cells, SAPhIR. The photovoltaic cells are well adapted to detect low energy heavy ions and have good energy and time resolutions to obtain a good fission fragment detection. This experiment led to the discovery of new isomeric states in {sup 135}Xe, {sup 104}Mo, {sup 146,147,148}Ce and {sup 152,154,156}Nd, with lifetimes between 60 ns and 2 {mu}s. Level schemes of these nuclei have been completed. An interpretation of the isomeric states in the nuclei {sup 154,156}Nd and {sup 156,158}Sm was performed by Hartree-Fock-Bogolyubov calculations using the DIS Gogny force with two quasi-particles excitations. The confrontation with the experimental results led to an interpretation of these isomeric states as K-isomers. (author)

  20. Conditions et processus menant à des changements à la suite d’interventions en santé et en sécurité du travail : l’exemple d’activités de formation Conditions and processes leading to changes following occupational health and safety interventions: The example of training Condiciones y procesos que conducen a acciones preventivas como consecuencia de intervenciones en salud y seguridad : el ejemplo de las actividades de formación

    Directory of Open Access Journals (Sweden)

    Marie Bellemare

    2007-05-01

    Full Text Available Cet article traite des conditions et processus menant à des changements à la suite d’interventions en santé et en sécurité du travail ; il utilise l’exemple d’activités de formation. Des observations et entrevues ont été réalisées lors de quatre interventions de conseillers d’associations sectorielles paritaires en SST. Trois dimensions du contexte influencent les changements : le degré préalable de développement des activités en prévention ; la présence d’acteurs en mesure de s’en faire les « relais » et « maîtres d’œuvre » ; la présence d’enjeux favorables. La collaboration passée avec l’organisme conseil contribue aux deux premières, suggérant l’intérêt du suivi soutenu par l’organisme de prévention. Différentes stratégies sont déployées pour développer les capacités manquantes et soulever les enjeux favorables. Divers processus menant à des changements sont observés : une transformation de la représentation qu’ont les travailleurs de leur capacité à agir ; la légitimation de leur action sur les risques ; le partage d’expérience en prévention ; un processus collectif de résolution de problème.This article deals with the conditions and processes that lead to changes following occupational health and safety interventions, with training activities being used as an example. Observations and interviews were conducted during four training interventions carried out by advisors from joint OHS sector-based associations. Three aspects of the context influence the changes: the previous degree of development of prevention activities; the presence of “relay” actors; and the presence of favourable issues. Previous collaboration with the prevention organization contributes to the presence of the first two, suggesting the relevance of sustained follow-up by the prevention organization. Different strategies are used to develop these capacities and to raise favourable issues

  1. Some Applications of Surface Barrier Solid-State Detectors for Alpha-Activity Detection and Measurement; Quelques Applications des Detecteurs a Semi-Conducteurs a Barriere de Surface pour Deceler et Mesurer l'Activite Alpha; Nekotorye vidy primeneniya detektorov tverdogo sostoyaniya s poverkhnostnym bar'erom dlya izmereniya i obnaruzheniya al'fa-aktivnosti; Aplicaciones de los Detectores de Semiconductores de Barrera Superficial a la Deteccion y Medicion de Emisores Alfa

    Energy Technology Data Exchange (ETDEWEB)

    Perry, K. E.G. [Atomic Energy Establishment, Winfrith, Dorset (United Kingdom)

    1965-10-15

    echantillons subissent un traitement chimique destine a en extraire le plutonium qui se depose par electrolyse sur un petit disque d'acier inoxydable qui constitute ainsi une source mince dont l'auto-absorption pour l'activite alpha est negligeable. Pour une exposition professionnelle normale, la quantite d'activite ainsi collectee est tres minime; on doit donc pouvoir mesurer avec exactitude les faibles niveaux d'activite des echantillons. Le detecteur a semi-conducteurs presente un avantage par rapport aux autres types de detecteurs (par exemple, compteur a scintillation ou compteur proportionnel a courant gazeux) en ce sens que l'on peut reduire considerablement le bruit de fond, ce qui permet de mesurer des niveaux energetiques plus bas. On utilise pour ces mesures deux types d'ensemble pourvus de detecteurs a semi-conducteurs. Le dispositif le plus simple comporte un detecteur a semi-conducteurs destine a mesurer l'activite alpha totale de l'echantillon. Toutefois, lorsqu'il existe d'autres isotopes emetteurs alpha, il est preferable, pour evaluer avec exactitude le teneur en plutonium, d'utiliser le detecteur a semi-conducteurs comme spectrometre ; l'analyse de l'amplitude permet de distinguer le rayonnement de 5,14 MeV du plutonium du rayonnement alpha d'autres nucleides. On utilise deux appareils comportant un detecteur a semi-conducteurs destine a l'analyse de l'energie. Le plus( simple de ces appareils est pourvu d'un detecteur de 20 mm de diametre dont la sortie est couplee a un circuit comportant deux selecteurs d'amplitude qui commandent deux enregistreurs mecaniques a remise a zero, les seuils de discrimination etant regles de maniere a tenir compte de la crete alpha du 239Pu. Pour les analyses d'energie a tres forte resolution (superieure a 1%), on mesure l'echantillon dans le vide au moyen d'un detecteur a semiconducteurs approprie dont la sortie alimente un analyseur multicanal. Le memoire donne des details sur ces appareils et les resultats obtenus. On

  2. A Low-Background Liquid-Scintlllation Counter for the Assay of Low-Specific Activity Tritiated Water; Compteur a scintillations a liquides, a faible mouvement propre, pour le dosage d'eau tritiee en faible activite specifique; ZHidkostnyj stsintillyatsionnyi schetchik s nizkim fonom dlya analiza nasyshchennoj tritiem vody s nizkoj udel'noj aktivnost'yu; Contador de centelleador liquido de reducida actividad de fondo para el analisis de agua pritiada de baja actividad especifica

    Energy Technology Data Exchange (ETDEWEB)

    Boyce, I S; Cameron, J F [Wantage Research Laboratory, Wantage (United Kingdom)

    1962-01-15

    In liquid-scintillation counting of tritiated water single photomultiplier counters and coincidence systems offer comparable sensitivities. To investigate low level counting a coincidence system was selected to avoid Uncertainties in the background due to single photon events arising from phosphorescence and chemiluminescenc e in the solution. With this system the background was found to be due largely to light originating in the photomultiplier photocathode. Using two photomultipliers with ''Pyrex'' photocathodes in contact in an 8 in thick iron shield experiments were conducted to determine the relative importance of the following possible courses of background : (a) Ionization and excitation of residual gas and of the semi-conductor dynode surfaces, particularly in regions where the current density is greatest. (b) Sparking, electroluminescence and field emission. (c) Positive ion feedback to the photocathode causing secondary electron emission. (d) Operation of the photocathode window itself as a phosphor for cosmic radiation, K{sup 40} beta particles or radiation from uranium daughter products. In particular it was found that contribution (c) was significantly lower than was previously supposed. Methods of minimizing these effects, including the use of quartz photocathodes, and special photomultipliers were investigated. In the finished design of counter the minimum detectable specific activity with a counting time of 30 min. is 6x10{sup 7} {mu}c/ml. (author) [French] Dans le dosage de l'eau tritiee au moyen d'un compteur a scintillations a liquides, les compteurs a photomultiplicateur unique et les ensembles a coincidences presentent une sensibilite du meme ordre. Pour faire des recherches sur la mesure des faibles activites, les auteurs ont choisi un dispositif monte en coincidence, afin d'eviter les incertitudes dans le mouvement propre causees par l'apparation de photons isoles, dus a la phosphorescence et a la chimioluminescenc e de la solution. Dans ce

  3. Élaboration d’un cadre de référence pour l’étude des stratégies : analyse de l’activité et étude de cas multiples dans deux usines de crabe Development of a frame of reference for studying strategies: Activity analysis and the study of multiple cases in two crab plants Elaboración de un marco de referencia para el estudio de las estrategias : Análisis de la actividad y estudio de casos múltiples en dos plantas de tratamiento del cangrejo

    Directory of Open Access Journals (Sweden)

    Nicole Vézina

    2011-11-01

    Full Text Available L’étude des stratégies mises en œuvre par les travailleurs-euses est partie intégrante de l’analyse de l’activité de travail en ergonomie. Cette étude propose un cadre de référence pour le recueil et l’analyse des stratégies et décrit la nature et les enjeux des stratégies développées par des travailleuses saisonnières de l’industrie de la transformation du crabe aux prises avec des troubles musculo-squelettiques. Reposant sur un devis méthodologique combinant l’approche centrée sur l’analyse de l’activité de travail et celle d’une étude de cas multiples de 16 travailleuses (8 à Terre-Neuve ; 8 au Québec suivies pendant deux années consécutives, divers entretiens et des observations de l’activité et de l’organisation du travail ont été réalisés. Les résultats permettent de constater que les travailleuses élaborent une grande variété de types de stratégies pour gérer leur douleur (19 catégories de stratégies. On constate autant les bienfaits associés à certaines stratégies que les compromis coûteux que représentent d’autres stratégies pour la santé. Le cadre de référence élaboré de manière inductive et ancré empiriquement dans les données recueillies sur le terrain constitue un outil dont pourront disposer les chercheurs et les ergonomes pour l’identification et le classement des stratégies.Study of the strategies used by workers is a central aspect of work activity analysis in ergonomics. This study proposes a conceptual framework for strategy collection and analysis, and describes the nature and issues of the strategies developed by seasonal crab plant workers with musculoskeletal disorders. Based on a methodology combining the ergonomic approach of work activity analysis and a multiple case study of 16 female workers (8 in Newfoundland, 8 in Quebec, interviews and observations of the work activity and organization were conducted for two consecutive years. While

  4. Present and Future Programmes in the Treatment and Ultimate Disposal of High-Level Radioactive Wastes in the United States of America; Programmes Actuels et Futurs de Traitement et d'Elimination Definitive des Dechets Radioactifs de Haute Activite aux Etats-Unis; 0422 0415 041a 0423 0429 0410 042f 0418 0411 0423 0414 ; Programas Estadounidenses Actuales y Futuros para el Tratamiento y Evacuacion Definitiva de Desechos de Elevada Radiactividad

    Energy Technology Data Exchange (ETDEWEB)

    Belter, W. G. [United States Atomic Energy Commission, Washington, DC (United States)

    1963-02-15

    to future programme planning in waste management is discussed. (author) [French] Les difficultes inherentes au stockage en reservoir des dechets de haute activite, telles que le risque de fuite et la necessite du transfert des dechets liquides pendant des periodes extremement longues, ont donne lieu a l'execution aux Etats-Unis d'un vaste programme de recherches et de mises au point qui comporte l'etablissement de systemes pratiques d'elimination definitive de ces matieres. L'auteur decrit le programme de la 'Division de mise au point des reacteurs ' de la Commission de l'energie atomique des Etats-Unis, car il est important pour l'evolution des aspects economiques de l'energie d'origine nucleaire. Il donne un apercu des programmes a long terme de gestion des dechets dans les centres de production de plutonium, a Hanford et a Savannah River, compte tenu des conditions propres a leur situation geographique. L'auteur expose plusieurs methodes de 'conversion en solides 'actuellement a l'etude, dont l'emploi de lits fluidises, de pots chauffes, de colonnes de vaporisation a chaleur rayonnante, de fours a calciner rotatifs et d'eponges en matiSreTceramique. Il examine egalement la methode fondee sur l'addition aux dechets de materiaux vitrifiants en vue d'obtenir un produit plus stable. Il signale divers avantages et inconvenients de chacune de ces methodes. Il fait le point des travaux en cours et expose les plans des futurs programmes. L'auteur decrit les recherches sur certaines formations geologiques; structures salines, profonds bassins permeables et roches cristallines impermeables, pouvant servir au stockage ou a l'elimination definitive de solides calcines ou de divers types de dechets liquides. Il analyse des plans visant a faire une experience dans des structures salines avec des produits de haute activite. Il decrit brievement le programme de forages exploratoires que l'on execute a Savannah River pour determiner s'il est possible d'emmagasiner de vieux dechets

  5. Hereditary Factors Involved in Radiation-Induced Leukaemogenesis; Facteurs hereditaires impliques dans la radioleucemogenese

    Energy Technology Data Exchange (ETDEWEB)

    Duplan, J. F. [Laboratoire Pasteur, Institut du Radium, Paris (France)

    1969-11-15

    sensitive than C57BL cells to the leukaemogenic virus. (author) [French] Les facteurs hereditaires impliques dans la radioleucemogenese ont ete etudies dans les lignees pures AKR et C57BL, leurs hybrides de premiere generation et leurs croisements de retour. On sait que l'heredite des leucemies lymphoides spontanees est attribuee a des facteurs hereditaires dont certains seulement sont chromosomiques et l'on peut penser qu'il existe une situation identique en ce qui'concerne l'heredite des radioleucoses. Afin de reconnaitre les divers facteurs chromosomiques et non chromosomiques, on a realise,dans les lignees pures et dans chacun des croisements, trois types d'experiences destinees a evaluer: a) l'incidence des leucoses lymphoides spontanees, b) l'incidence des leucoses radioprovoquees, c) l'inhibition de la radioleucemogenese par l'injection de cellules hemopoietiques isogeniques. Les resultats montrent que le principal facteur extrachromosomique est le virus leucemogene: virus de Gross (VG) pour la lignee AKR, virus des radioleucemies (VRL) pour la lignee C57BL; ces deux agents sont transmis par la mere a sa progeniture. Le VG peut etre responsable des radioleucemies aussi bien que des leucoses spontanees, mais en revanche le VRL ne produit pas de leucemies spontanees meme chez les croisements de retour possedant une importante fraction du genome AKR particulierement favorable a la leucemogenese. La restauration par la moelle osseuse C57BL provoque une nette inhibition de la leucemo- genese chez tous les animaux appartenant a des croisements pour lesquels elle est histocompatible; par contre la moelle AKR est toujours depourvue d'activite restauratrice. Trois hypotheses permettent d'expliquer ces resultats. L'une serait que la moelle osseuse C57BL contient beaucoup plus d'elements precurseurs que la moelle AKR, ces cellules etant necessaires a l'inhibition du processus leucemogene. L'autre serait que la lignee AKR est depourvue d'un facteur qui est indispensable pour l

  6. Contraintes organisationnelles et gestion des risques en milieu ouvert : l’activité des monteurs installateurs de structures de fête Organizational constraints and risk management in an open environment: the activity of festival equipment erectors and installers Exigencias organizacionales y gestión del riesgo en lugares abiertos : La actividad de los montadores instaladores de estructuras de fiestas foráneas

    Directory of Open Access Journals (Sweden)

    Valérie Zara-Meylan

    2006-05-01

    Full Text Available Dans cet article, nous analysons l’activité des monteurs installateurs de structures de fête, agents d’une collectivité territoriale dans une grande ville. L’objectif est de mettre en évidence, dans ce type de système ouvert, les contraintes organisationnelles dues à la multiplicité des niveaux de décision et des réseaux d’acteurs ayant chacun leurs objectifs spécifiques. Ces contraintes ont un coût pour les opérateurs, en particulier en ce qui concerne les risques encourus.Après avoir montré les limites de la gestion verticale des risques, les régulations individuelles et collectives mises en place dans les équipes dans le but de gérer les risques sont analysées du point de vue de l’articulation des rôles des anciens et des novices dans le processus d’action, dans plusieurs situations.La méthodologie employée associe à l’analyse in situ des questionnaires et des tableaux de bord. Elle permet de mettre en évidence des situations critiques occasionnées par les interventions de multiples acteurs, en amont des chantiers et sur les sites. Ces intervenants perturbent la gestion horizontale des risques assurée par les anciens, les conduisant à faire des compromis, souvent au détriment de leur santé.In this article, we analyze the work activity of festival equipment erectors and installers in a large city local authority. The purpose is to identify, in this type of open system, the organizational constraints caused by the many decision levels and networks of actors with their own specific objectives. These constraints have a cost for the operators, especially in terms of occupational risks.After showing the limitations of " vertical " risk management, the individual and collective regulations that are implemented in the teams in order to manage the risks are analyzed from the standpoint of the articulation of older workers’ and novices’ roles in the action process, in several situations.The methodology

  7. IPN - Orsay Report of activity 1998-1999. General activities. Technical Development; IPN - Orsay. Rapport d'activite 1998-1999. Activites generales. Recherches techniques

    Energy Technology Data Exchange (ETDEWEB)

    Pouthas, Joel; Hutin, Christiane; Rivenez, Jean-Philippe [eds.] [Institut de Physique Nucleaire, 91406 Orsay cedex (France)

    2000-01-12

    The main direction of research of the Institute of Nuclear Physics at Orsay was the physics of nuclei far from stability line. The high value of the results obtained is due mainly to development of MUST detectors, LISE3 and SPEG spectrometers and use of large size germanium crystals. Important findings in radioactivity, elastic and inelastic scattering, in transfer reactions (in {sup 11}Be for the first time), Coulomb excitation and use of on-line gamma labelling technique, especially applied to neutron rich nuclei around N=20 and 28, are mentioned. Collaborations to projects like EXOGAM, VAMOS, LISE2000 at GANIL as well as the studies on nuclei around {sup 132}Sn at ISOLDE are reviewed. Very promising appear the results obtained with hot nuclei, produced in heavy ion collisions at 30-200 MeV/n and with the new nuclear species produced in relativistic heavy ion collisions. The studies on hadrons in nuclear matter conducted at CERN LHC and GSI at Darmstadt concerned mainly the quark-gluon plasma. The results on J/{psi} suppression obtained by NA50 collaboration appear to signal this state. The studies on hadron structure with the GRAAL experiment at ESRF opened the domain of strange baryon resonances. This first part of the IPNO Report of activity on 1998-1999 has the following content: 1. Accelerators. 2. Targets, sources and injectors. 3. Detectors and related instrumentation. 4. Electronics and data acquisition. In the first chapter there are presented works on R and D on superconducting RF cavities, the contributions to the LHC and IPHI projects, the status of Tandem accelerator and the activities on techniques associated with accelerators. The second chapter deals with the SELPOM polarized electron source, the CIRIL electron irradiator, the production of neutron rich radioactive atoms at PARRNE 1 and 2, the SILFRA laser ion source and the SIHL stable ion separator, HD polarized targets and TANCREDE project. The chapter three reports studies on the chambers of ALICE dimuon spectrometer and for HADES experiment. Also the progress in developing the equipment for G0 experiment, VAMOS spectrometer, the large surface annular telescope and EUROBALL 4 detector is described. Finally in the chapter four there are reported works on developing a peak sensing ADC, a VXI D size card for EXOGAM,and data acquisition systems. The first volume begins with short reports of activity from the technical and general servicing departments. The second volume of the IPNO Report presents the results of the Research Division.

  8. Report of Activity, 1996 - 1997. Vol. 3. General activities - Technical Research; Rapport d`activite 1996 - 1997. Tome 3. Activites generales - Recherches techniques

    Energy Technology Data Exchange (ETDEWEB)

    Pouthas, Joel; Hutin, Christiane; Niogret Mathias [eds.] [Inst. de Physique Nucleaire, Paris-11 Univ., 91 - Orsay (France)

    1999-11-01

    This is the third tome of the Report of Activity of IPN - Orsay on 1996-1997. It deals with general activities and technical research. Summary reports and short communications are grouped in the following sections: 1 - Accelerators with the sub-divisions 1.1 - R and D on superconducting RF cavities; 1.2 - SPIRAL Project; 1.3 - Contribution to the LHC Project; 1.4 - Tandem; 2 - Targets, Sources and Injectors; 3 - Detectors and related instrumentation; 4 - Electronics; 5 - Data processing; 6 - Radioprotection and medical applications

  9. Report of activity, 1995 - 1996; Rapport d`activite, 1995 - 1996

    Energy Technology Data Exchange (ETDEWEB)

    Aguer, Pierre [Centre d`Etudes Nucleaires, Bordeaux-1 Univ., 33 Gradignan (France)

    1997-06-01

    This Report of activity displays the work developed at Centre d`Etude Nucleaires de Bordeaux-Gradignan (CENBG) in the period 1995-1996. A number of 68 short progress notes are presented in the fields of Cosmic particles (3), Nuclear Astrophysics (4), High Spins-Large Deformations (8), Basic Interactions (9), Exotic Nuclei (10), Hybrid Systems (4), Theoretical Physics (28), Cellular Microanalysis by means of Nuclear Probes (3) and Technical Development (3). The main problems attacked at CENBG, established as orientations by scientific board of IN2P3 (CENBG is a UMR of Bordeaux-1 Univ. and CNRS-IN2P3) are the following: the research of Majorana/Dirac nature of neutrino (in the framework of NEMO Experiment) in relation with the problem of origin of mass in the Universe and the cosmological puzzle of dark matter, the investigation of the origin of high energy (20 to 200 GeV) cosmic radiation (in the framework of CELESTE Experiment), the study of extreme issues in nuclear structure as high spin states and super deformation (in the framework of DIAMANT and SAPHIRE Experiments) and the study of exotic (far-off-stability-line) high-isospin nuclei, nuclear dynamics and hadron (sub-nucleon degrees of freedom) physics, extensive cosmic showers and the physics of free electron lasers. To these issues one should add two recent activities which will be largely developed in the near future. The first is the physics of hybrid reactors and the nuclear burning (nuclear transmutation) of the radioactive wastes and the second is the application of the Van de Graaff microprobe method in biological investigations. This report is completed by a presentation of the most recent technical developments at CENBG

  10. Progress report 2000-2001; Rapport d'activite 2000-2001

    Energy Technology Data Exchange (ETDEWEB)

    Albrand, S.; Carbonell, J.; Chauvin, J.; Compara, V.; Crepe-Renaudin, S.; Conto, J.M. de; Favro, C.; Lleres, A.; Merle, E.; Quemener, G.; Renault, C.; Tur, C

    2001-07-01

    This document reports the activities of the ISN (nuclear sciences institute of Grenoble) for the 2 last years 2000, 2001. ISN's teams are involved in 3 research axis: elementary particles and hadrons, astro-particles and new systems for producing nuclear energy. In this document the activities have been classified into 18 topics: 1) the ATLAS experiment (detector for LHC), 2) the D0 experiment (electron identification and b-tagging), 3) the DELPHI experiment (R-parity violation), 4) the AMS experiment (embarked cosmic ray detector), 5) the cosmic microwave background (CMB), 6) the MUNU experiment (magnetic moment of antineutrinos), 7) the EUSO experiment (detection of the extreme energy cosmic rays), 8) 2 parity violation experiments (GO and SAMPLE), 9) the photo-production of mesons on proton (GRAAL), 10) a new isomeric state for Sb{sup 136}, 11) a new shape isomer for Kr{sup 72}, 12) new {mu}s isomers near Sn{sup 132}, 13) laser spectroscopy measurements for very neutron-rich tin isotopes, 14) hybrid demonstrator, 15) hadron-therapy (Etoile project), 16) positron emission tomography, 17) theories and models, and 18) technological work on accelerators and ion sources. (A.C.)

  11. Report of Laboratory Activity, 1996 - 1997; Rapport d`activite du Laboratoire, 1996 - 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    This report presents the activity of the Laboratory of Particle Physics and Cosmology of College de France on the years 1996-1997 in the fields of Cosmic Physics, Observational Cosmology, Neutrino Experiments, HELLAZ Project, Instrumentation, DELPHI Experiment, Research of Quark-Gluon Plasma, Research on Dark Matter, Theory, Parallel Processing. Also, are mentioned the activities in computer software, electronics, mechanics, general service, publications, external relations, seminars and collaborations. In the field of Cosmic Physics there are described the current experiments on cosmic gamma rays, the work with AUGER observatory and simulations. In the field of observational cosmology there are mentioned the search for baryonic dark matter and studies on type Ia supernovae. In the field of neutrino studies there are described the searches on neutrino oscillations on a 1 km base, while in the framework of HELLAZ project there is reported the work on solar neutrinos. In the field of instrumentation there are mentioned the work on Hybrid Photon Detector and the contribution of the laboratory to the LHC-B Experiment at CERN and on long-base RICH experiment. In the framework of DELPHI experiment at LEP there are reported investigations on beauty particles, new particles and detector performances. There are given results obtained in the field of Quark-Gluon Plasma studies. There are described the research and development works with the dark matter detectors. In the field of theory there are reported studies on the proton structure, photon-photon collisions, the physics of the excited leptons and studies on neutron stars. Also, in this field there is reported the studies in Quantum Chromodynamics and physics of top quark. In the section devoted to parallel processing there are mentioned the research activities related to actinide burning by accelerators and simulations in nuclear medicine issues, electron channelling in crystals and beam-beam effect in colliders. The report also, presents the activities in the field of computer net infrastructures as well as in electronics

  12. Progress report I.R.S.N. 2003; Rapport d'activite IRSN 2003

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    This report is divided in six chapters. The first one is devoted to the safety of civil installations, transport and radioactive wastes. In this chapter we find the safety of PWR type reactors, the safety of Cabri reactor, ITER tokamak, the storage of radioactive waste and the criticality of packages with actinides. The second chapter concerns the protection of man and environment, we find the radiation monitoring of workers, the medical management of irradiated personnel, the radiation protection of nuclear power plants. The third chapter is relative to the national defense. The fourth chapter tackles the international relations and the part taken by I.R.S.N. in the Europe construction. The fifth chapter gives the contribution to public information, communication and training. The sixth and last chapter explains the quality policy at I.R.S.N. and how the management is made by a quality option. (N.C.)

  13. [Advances in research of chemical constituents and pharmacological activites of Bauhinia].

    Science.gov (United States)

    Shang, Xiao-Ya; Liu, Wei; Zhao, Cong-Wei

    2008-03-01

    The research advances based on the related references were summarized in the last thirty years. Bauhinia contained many kinds of chemical constituents, primarily including flavanoids, steroids, terpenoid and so on, some of them were firstly obtained from the nature. Many plants of the Bauhinia are used in traditional medicine for their interesting biological activities such as antidiabetic, antiinflammatory, antimicrobial, analgesic, astringent and diuretic effects. This paper gives an overview of phytochemical and pharmacological research in Bauhinia, and it has been classified accordding to the chemical structure characteristics. To provide more material to draw on for further development and utilization resources of Bauhinia.

  14. Impact de l'activité anthropique sur la dégradation de l ...

    African Journals Online (AJOL)

    2Département de géologie, Université Ibn Khaldoun, 14000, Tiaret, Algérie. 3. Département .... Figure 1. Localisation géographique de la région d'étude. ... que cette situation est attribuée au .... ville d'El Kala et (O-e) à coté du village. Mellah, ses .... souterraines au nord de la ville de Settat (Maroc), Bulletin de l'institut ...

  15. Report of Activity, July 1995 - June 1997; Rapport d`activite Juillet 1995 - Juin 1997

    Energy Technology Data Exchange (ETDEWEB)

    Tamain, B. [Lab. de Physique Corpusculaire, Caen Univ., 14 (France)

    1997-12-31

    The LPC (Laboratoire de Physique Corpusculaire) dedicated the major part of its 50 years activity to the Physics of Heavy Ions research conducted at GANIL. The activity in last two years on which this report is focused refers to this domain. Of special priority was the topics of hot and /or compressed nuclear matter aiming at understanding the physics of multifragmentation.The new ionization chambers INDRA and development of control programming required special efforts. A second direction of activity was the study of exotic nuclei particularly of halo nuclei. Specific equipment like the multi-detectors of DEMON and TAPS were designed for approaching the hot nuclei. Projects based on SPIRAL beams and collaborations dedicated to investigation of different new branches of exotic radioactivity ({beta}, xn: TONNERRE project) or mechanisms of induced fusion by radioactive nuclei to produce superheavy nuclei are reported on. The LPC was implied also in two important research programs, PRACEN and GEDEON (treatment of radioactive wastes) which made clear the evolution of research for the next two years: the correct understanding of the mechanisms of light particle production in neutron induced collisions at 20 to 200 MeV. In the frame of NEMO Collaboration that approaches topics related to the weak interactions the Laboratory has developed and tested the trigger system of NEMO3. A program utilizing ion trapping on SPIRAL for efficient studies on {beta}-neutrino angular correlations in superallowed decays will be thus feasible. Contracts like COGEMA and DAMRI oriented toward applied research are also mentioned

  16. Report of activity july 1997 - june 1999; Rapport d'activite juillet 1997 - juin 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    This report describes the activity of the laboratory of corpuscular physics between july 1997 and june 1999. The first parts present scientific results in the scope of: exotic nuclei properties, production and de-excitation of hot nuclei, theoretical and phenomenological physics, fundamental interactions and nuclear wastes processing. The last parts present the technical resources, the teaching, the number and titles of publications and a list of the laboratory members. (A.L.B.)

  17. Report of activity, July 1993 - June 1995; Rapport d`activite, Juillet 1993 - Juin 1995

    Energy Technology Data Exchange (ETDEWEB)

    Le Brun, C. [Lab. de Physique Corpusculaire, Caen Univ., 14 (France)

    1998-04-01

    This report presents the activity of `Laboratoire de Physique Corpusculaire` of Caen from July 1993 to June 1995. From its inception, at GANIL the nuclear physicists aimed at creating far off-equilibrium nuclear systems in order to obtain a better understanding of their properties as well as of nuclear matter. The first direction of research was the study of the excited nuclear matter i.e. the way in which the energy of heavy ion collisions is deposed in the compound system and nuclear fragments and the corresponding channels of their de-excitation. By means of NAUTILUS data and from comparisons of data with simulations it is now possible to measure life-times (down to 10{sup -22} s), the nuclear flow and the form of fragment emitters. These methods will be extensively used in the analysis of data taken with INDRA, which already has made evident a vaporization threshold. A second direction of research is based on the possibility to produce by fragmentation nuclei with a very anomalous neutron and proton composition. LISE, SISSI, and SPIRAL are used to re-accelerate the exotic or radioactive ions. By utilisation of DEMON the neutron halos of several nuclei has been studied, among which the one-neutron halo in {sup 19}C. The laboratory has participated also in large collaborations (NEMO) which investigated the neutrino nature and its rest mass which are important problems related to the validity of the particle physics standard model and, in turn, to the problem of the dark matter of the universe. A significant effort was attached to the realization of the utilized detectors and associated electronics. A special neutron detector was conceived and certified for COGEMA. The help of other institutions among which IN2P3, an CNRS institute, is acknowledged. There financial support as well as that obtained through ISMRA and the university has permitted the fruitful integration of LPC Caen in large national and international collaborations

  18. Progress report 1996-1997; Rapport d`activite 1996-1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    This document describes the activities of the DRFC (CEA-France) during the last 2 years. It is divided into 3 parts. In the first part experimental results concerning Tore-supra device are presented involving topics about long discharges, current generating experiments, edge plasma physics with results about the divertor and studies about MHD, turbulence and transport. The second part is dedicated to the daily operations and technological development of Tore-supra. A progress status of the CIEL project is made. The last part is devoted to the research program for the next stage and the long term. This program focuses on 5 fields: superconductive magnets, plasma facing components, negative ion sources, current generation and HF heating, and reactor studies. (A.C.) 61 refs.

  19. A.C.R.O. activity report 2005; ACRO rapport d'activite 2005

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    The A.C.R.O. is an association law 1901 declared at the Calvados prefecture at the date of 14. october 1986 and registered as environment protection. It was created, by more than 900 persons, in the months following the Chernobylsk accident in reaction to a lack of information and means of independent radiation monitoring. The particularity of the association is to own a laboratory of radioactivity analysis. Since the end of the nineties, the concerns include the natural sources of irradiation as the radon and apply to the consequences, out of nuclear industry, of the use of ionizing radiation or radioactive matter. On this last point, the affair of the orphan industrial site Bayard at Saint-Nicolas-d'Aliermont, massively contaminated by radium-226 devoted to the fabrication of alarm clocks, and the appearance of exemption threshold in the European law are elements at the origin of this evolution. (N.C.)

  20. Activité antioxydante et antiseptique de l'huile essentielle et des ...

    African Journals Online (AJOL)

    Samah

    piégeage des radicaux libres DPPH en comparaison avec le BHT ainsi ... qui ont une importance croissante grâce à leur rôle d'antioxydants naturels [4]. Pendant des siècles, les espèces du genre Thymus ont été utilisées couramment dans ...

  1. Activity report 1995-1998; Rapport d'activites 1995-1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    The aim of this report is to outline the scientific activity of the ''Service des Photons Atomes et Molecules'' (DRECAM), during the period 1995-1998: activity in terms of structure, scientific research programs and results, publications, training and contracts. DRECAM is one of the service of the ''Direction des Sciences de la Matiere'' (DSM), itself depending of the CEA Institution. The scientific domains covered by this report are: the excited atoms, multicharged ions - atoms collisions, molecules and aggregates in extreme conditions, covalent structures, new light sources. (A.L.B.)

  2. ANCLI annual report 2004; ANCLI rapport d'activite 2004

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    The National Association for the Information Local Commissions (ANCLI) was created in september 1999. This association aims to develop an exchange and information network for the information local commissions. In this framework it develops information sheets, Internet site, nuclear centers visits, colloquium and formations organizations. This report presents the annual activities for the year 2004. (A.L.B.)

  3. Scientific report 1996-1997; Rapport d`activite 1996-1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-12-31

    A general introduction gives a summary of the present scientific program of the SPEC and presents some of the recent highlights, the organization, the recent evolution and the relationship of the laboratory with the CEA and the scientific community. Most of the information on the organization is gathered at the end of the report in a section called `Facts and Figures`. The central part consists in 20 chapters which can be divided in 4 subsets corresponding to the contributions of the four laboratories of the SPEC. In front of each of these subsets, an inset gives a summary of the respective contributions. The distribution is as follows: Chapter 1 - 4: Soft matter, interfaces and turbulence. Chapter 5 - 11: Solid state and novel materials. Chapter 12 - 16 : Quantum condensed matter. Chapter 17 - 20: Condensed matter theory. The headings of each chapter list the physicists, technicians, PhD students as well as the visitors and main collaborators which have taken part in the corresponding activities. In most cases, graduate students were involved in some of the work during their training period. Their names can be found in the section Facts and Figures (subsection Teaching and Training). The Index lists all the contributors and gives the page numbers at which their names appear. (authors)

  4. Activity report 1993-1994; Rapport d`activite 1993-1994

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-05-01

    This reports presents the Leon Brillouin Laboratory (LLB) activity during 1993-1994. Concerning the physico-chemical and biological systems, polymers are still a main field of the LLB. New ideas and experiments appeared also in the field water, ionic solids, polyelectrolyte and biologicals systems. Concerning structures and phase transitions, activity in the field of crystalline structures has been reinforced. Disordered systems, metallurgy and material fields were also developed. Concerning magnetism and superconductivity, important results were obtained. (TEC). 159 refs., 241 figs., 29 tabs.

  5. Composition chimique et activité antibactérienne des Huiles ...

    African Journals Online (AJOL)

    car la recherche des nouveaux médicaments est continuelle [1]. Les limites ... les huiles essentielles offre de nouvelles perspectives thérapeutiques. En effet, depuis quelques années, un intérêt accru est porté sur les huiles essentielles ayant montré des .... essentielle par mesure du diamètre d'inhibition, autour d'un disque ...

  6. Étude ethnobotanique, activité antifongique in vitro sur Candida ...

    African Journals Online (AJOL)

    SARAH

    Ouattara et al., 2008). ..... (Tecan) ; cette mesure de l'absorbance permettra de déterminer la quantité relative de cellules vivantes et .... Effet des extraits de H. abyssinica sur Candida albicans : Après 72h d'incubation, on observe.

  7. 159 Évaluation de l'activité biologique des feuilles de l'olivier ...

    African Journals Online (AJOL)

    PC

    naturelles, nous avons essayé dans cette étude de contribuer à la connaissance de certains effets biologiques des feuilles ... alternative aux médicaments conventionnels. En Algérie, les plantes ... comparaison de deux moyennes de deux séries de mesure est réalisée grâce au test 't' de Student-Fisher. 2-5. Evaluation de ...

  8. Progress report 1996 - 1997; Rapport d'activite 1996 - 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    This report reviews the activities of the laboratory for the years 1996 and 1997. Laboratory's activities are driven by an important international program on particle physics and astro-particles. 9 topics are presented: 1) physics at LHC: the ATLAS experiment, 2) the search for a new physics at LEP : DELPHI experiment, 3) neutrino oscillations: NOMAD and TONIC experiments, 4) the experiments H1 at HERA, 5) CP breaking: BABAR experiment, 6) DO experiment at the Tevatron, 7) gamma radiation sources: CAT experiment, 8) supernova, and 9) the project of the AUGER observatory.

  9. TRIAL BURN RESULTS AND FUTURE ACTIVITES OF THE EPA MOBILE INCINERATOR

    Science.gov (United States)

    The EPA Mobile Incinerator has demonstrated its ability to successfully destroy dioxin. A trial burn conducted in 1987 demonstrated the incinerator's ability to destroy a wide variety of compounds. The destruction and removal efficiency (DRE) of carbon tetrachloride, hexachloro...

  10. Progress Report 1994-1995; Rapport d`Activite 1994-1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    This first volume of 1994 to 1995 activity report, of Nuclear Physics Institute (Orsay, France) gives a general overview of the research programs conducted in the fields of nuclear structure and quantum mechanics. The main topics are: structure of atomic nuclei, physics of nuclei in excited states, field theory, hadronic physics, quantum mechanics of chaotic systems. (D.L.).

  11. Progress report 1998 - 1999; Rapport d'activite 1998 - 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    This report reviews all the activities of the IPNL (institute of nuclear physics in Lyon) for the years 1998 and 1999. In particle physics, IPNL's research program aims to give a thorough understanding of standard model, of its super-symmetric extension and of the search for Higgs'boson. In astro-particle physics, IPNL contributes to several international collaboration such as Edelweiss (on black matter), Virgo (on gravitational waves) and Opera (on neutrino oscillations). The study of nuclear matter has always been promoted at IPNL, these 2 years have been promising through the discovery with the NA50 experiment of a new state of the matter probably a plasma of quarks and gluons whose special characteristic is the vanishing of J/{psi}. The 45 topics presented in this document have been divided into 9 themes: 1) quarks and leptons, 2) astro-particles, 3) high density of hadron matter, 4) nuclear matter, 5) theoretical physics, 6) multi-field research, 7) technical support, 8) training, communication and information, and 9) scientific production. (A.C.)

  12. Petroleum industry. 1997 activity report; L`industrie Petroliere. Rapport d`activite 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-05-01

    This activity report from the direction of hydrocarbons of the French general direction of energy and raw materials (ministry of economy, finances and industry) presents an economic analysis of the activities of the French petroleum industry for 1997. After a recall of the missions of the direction of hydrocarbons, the report analyses successively: 1- the evolution of the petroleum market: the international petroleum market in 1997, the hydrocarbon supplies and external trade (natural gas, crude oil, condensates), the French petroleum market (primary energy consumption, final energy consumption, French petroleum consumption, the petroleum logistics in overseas departments and territories), the prices, margins and fiscal policy in France and Europe (crude oil and refined product prices in the international market, retail prices in France and Europe, the French petroleum fiscal policy, statistics of petroleum prices in France and Europe; 2- the petroleum industry activities: exploration and production in France and worldwide, the maritime and domestic transports and the storage (French commercial fleet, domestic transports, storage facilities, strategic stocks), the refining activity and the quality of products and fuel substitutes (refining, automotive fuels quality, bio-fuels), the distribution of petroleum products (automotive and diesel fuels, LPG, aircraft fuels, lubricants); 3- the environmental and safety aspects of refining, transportation (pipelines, tanker-ships) and exploration-production; 4- the economic situation of the companies: petroleum groups, French para-petroleum industry, scientific and technical research. (J.S.)

  13. Activity report june 1996 - may 1998; Rapport d'activite juin 1996 - mai 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    The aim of this report is to outline the scientific activity of the ''Service de Physique Theorique'' (SPhT), during the period june 1996-may 1998: activity in terms of structure, scientific research programs and results, publications, training and contracts. SPhT is one of the service of the ''Direction des Sciences de la Matiere'' (DSM), itself depending of the CEA Institution. The scientific domains covered by this report are: the statistical physics (phase transition, biophysics, soft matter, quantum systems); mathematical physics and fields theory (strings theory, random matrix, quantum theory); astrophysics, nuclear physics and particles physics. (A.L.B.)

  14. L'impact des TIC mobiles sur les activités des professionnels en entreprise

    OpenAIRE

    Besseyre Des Horts , Charles-Henri; Isaac , Henri

    2006-01-01

    It is widely recognized that ICT have modified organizational structures and processes duringthe last decade, notably with the general usage of laptop computers and mobile phones. Anumber of research works have pointed out the deep transformation of work situationsallowed by these technologies with the development of more autonomy and responsibility.However, in the case of mobile technologies, the impact of these technologies onprofessionals' work situations appears to be far more paradoxical...

  15. Activity report of the DPHD 2000; Rapport d'activite du DPHD 2000

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    This report concerns the activities of the department of protection of health for man and dosimetry at I.P.S.N. for the year 2000. It studied and presents dosimetry, the first chapter is relative to external, internal and in case of accident, the second chapter discusses radiobiology and radio-pathology through biological dosimetry, diagnosis and prognosis of radioinduced damages and therapy of radioinduced damage, the third chapter is devoted to evaluation and management of risks with radiation protection, epidemiology and management of risks, the fourth chapter concerns the dosimetric and radio-toxicologic surveillance with the surveillance of internal exposure and the radio-toxicologic surveillance. (N.C.)

  16. RTE - annual report 2007; RTE - rapport d'activite 2007

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    RTE is responsible for operating, maintaining and developing the French electricity transmission network. With the largest network in Europe, made up of some 100,000 km of high and extra high voltage lines and 45 cross-border lines, and a key location at the geographical hub, RTE is a crucial player in the development of the European electricity market. A public service company, RTE's role is to guarantee that the French power network runs smoothly and safely. It provides equitable access to all system users. Part of the EDF group, it is a totally independent company as required by law. Since 2005, RTE has been a limited liability company with an Executive Board and a Supervisory Board and enjoys a status that guarantees due neutrality in providing service to all players on the electricity market. This activity report presents: 1 - Interview with Dominique Maillard President of the Executive Board of RTE; 2 - New momentum, for a new frontier: Overview and key figures of 2007 (Key events of 2007, Governance and organisation of RTE, A new enterprise frontier), A year of initiatives (Customers, Industrial facilities, Environment, Human resources, International activity, Economic and financial results, Glossary); 3 - Supervisory Board Chairman's Report 2007: Editorial, Company administration (Make-up of the Supervisory Board, Functioning of the Supervisory Board, Supervisory Board Works, Economic and Audit Supervisory Committee, Remuneration of managers), Internal control (Internal control policy, Internal control operation, Control-related activities in 2007 (internal and external), Internal control relating to the implementation and processing of accounting and financial data), Assessment and perspectives (2008 Audit Mission Orientations, 2008 Internal Accounting and Financial Audit and Revision Orientations), Additional notes (Organisation of the Accounting and Tax Department); 4 - Management report: Financial and legal information (Key events of 2007, The economic environment, Activity and results for the year, Financing, Financial structure, Outlook for 2008, Other financial and legal information), Environmental information (Overview of the group's environmental policy, Respect of natural environments and landscapes, Consultation and an attentive ear, Research, Continuous improvement, Environmental expenditure in 2007), Employment (Statistics,, Organization and working hours, Compensation, Trade union relations and collective bargaining agreements, Professional equality of men and women, Election of members of works councils and employee delegates, Hygiene and security, Training and skills, Employment and insertion of handicapped persons, Social welfare); 5 - Consolidated financial statements 2007: Consolidated financial statements (Consolidated income statements, Consolidated balance sheets, Consolidated cash flow statements, Changes in consolidated equity), Notes to the consolidated financial statements

  17. RTE - activity report 2008; RTE - rapport d'activite 2008

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    RTE is a public company that operates, maintains and develops the largest high and very high-voltage electricity network in Europe. With its 100,000 km of lines, its 45 cross-border connections and its central geographical location, at the crossroads of European exchange, RTE has decisive assets for responding to the new economic and environmental challenges related to its activity, and for taking part actively in the construction of the internal electricity market. Since 2000, in the context of the public-service duties entrusted to it by the law, RTE has been the guarantor of the correct functioning and reliability of the French electricity system. It ensures free and equitable access to its network by all users, while respecting the code of good conduct that is checked annually by the Energy Regulatory Commission. Its income (public transmission network usage prices) and its expenditure (annual investment programme) are fixed by this regulatory authority. In accordance with the law, RTE is fully independent within the EDF group. Its status as a limited company with board of directors and supervisory board ensures its neutrality in relation to all players in the electricity market. In 2008: RTE's Turnover: euros 4,221 million, investments: euros 835 million, Employees: 8,536. This activity report presents: 1 - an interview with Dominique Maillard Chairman of the RTE Executive Board; 2 - 2008, a transitional year for RTE: overview and key figures, governance and organisation, significant events; 3 - Investments and clients, the fundamentals of RTE's assets: investing, adapting the network, ensuring the security of the system, dialogue with clients; 4 - RTE's men and women, more effective and higher added value: recruiting, preserving diversity, strengthening team spirit, supporting human resources; 5 - RTE, player and vehicle for sustainable development: a proactive commitment by RTE, participating in regional development, RTE, a socially-responsible company, controlling the ecological impact of the network; 6 - A company that is exemplary in Europe, ambition built on performance and innovation: professionalism and performance, a european outlook, international presence, innovating; 7 - Satisfactory financial performance in 2008, increased revenue in the context of investments that are high growth; 8 - Glossary; 9 - Appendix: RTE's infrastructure commissioned in 2008; 10 - Report from the chairman of the supervisory board on corporate governance and internal control procedures: corporate governance (corporate governance code, make-up of the supervisory board, functioning of the supervisory board, supervisory board works, the economic and audit supervisory committee, executive board, remuneration of managers, shareholder participation in the general meeting), internal control at RTE (compliance with laws and regulations, application of policies and decisions of the executive board, functioning of internal processes, the reliability of financial information), avenues for improvement, auditors' report; 11 - Sustainable development report: RTE at the heart of the French and European power system, RTE and its stakeholders, introduction by Dominique Maillard, Chairman of the RTE Executive Board, interview with Christelle Perrine, RTE Sustainable Development Director, sustainable development: a state of mind at the heart of our governance, networks for reliable supply of power and to contribute to European competitiveness (economy: contributing to economic development, environment: moving towards reducing our ecological footprint, social information: acting as a responsible company), steering tools; 12 - Management report: financial and legal information (key events for 2008, the economic environment, activity and results for the year, financing, financial structure, outlook for 2009, other financial and legal information), environmental information (overview of the group's environmental policy, environmental analysis, preservation of natural environments and biodiversity, conservation of natural resources and prevention of pollution, consultation and an attentive ear, continuous improvement), social information (statistics, employees, organization and working hours, compensation, developments in the pension arrangements for the French gas and electricity industries, dialogue with employees, professional equality of men and women, hygiene and security, training and skills, employment and insertion of handicapped persons); 13 - Consolidated financial Statements: consolidated income statement, Consolidated balance sheet, Consolidated cash flow statements, Changes in consolidated equity. 2008 has been characterized by an increase of 2.3% in The group's revenue, to euros 4,221 million, as well as by A fall in net profit to euros 295 million and increased Indebtedness of euros 108 million reflecting both operating Factors and an increase in capital expenditure

  18. 2004-2006 activity report of Dapnia; Rapport d'activite 2004-2006 du Dapnia

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    This document presents the research programs of the Department of Astrophysics, Particle Physics, Nuclear Physics and the related Instrumentation (Dapnia) of the French atomic energy commission (CEA). These programs deal with: 1 -the ultimate constituents of matter (standard model, physics at the LHC, neutrinos, hadrons structure); 2 - the energy content of Universe (dark matter, dark energy, antimatter and CP violation); 3 - the Universe's structuration (cosmology and structures formation in the Universe, formation and evolution of galaxies); 4 - structure and evolution of stars (formation of stars and planets, stellar and laboratory plasmas, compact objects, cosmic ray sources); 5 - nuclear matter in its extreme states (quarks and gluons plasma, exotic nuclei); 6 - innovation for detection systems (development of detectors, signal processing and real-time systems, intensive calculation and simulation); 7 - magnets and accelerators (particle accelerators, superconducting magnets, test facilities, new developments for magnets and accelerators instrumentation); 8 - physics for nuclear energy (nuclear data and modeling, fusion research technology); 9 - Dapnia's expertise for the society (physics and health, dismantling and aid to the design of nuclear facilities, light sources, environment). A list of publications completes the document. (J.S.)

  19. Scientific report 1996-1997; Rapport d`activite 1996-1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-12-31

    A general introduction gives a summary of the present scientific program of the SPEC and presents some of the recent highlights, the organization, the recent evolution and the relationship of the laboratory with the CEA and the scientific community. Most of the information on the organization is gathered at the end of the report in a section called `Facts and Figures`. The central part consists in 20 chapters which can be divided in 4 subsets corresponding to the contributions of the four laboratories of the SPEC. In front of each of these subsets, an inset gives a summary of the respective contributions. The distribution is as follows: Chapter 1 - 4: Soft matter, interfaces and turbulence. Chapter 5 - 11: Solid state and novel materials. Chapter 12 - 16 : Quantum condensed matter. Chapter 17 - 20: Condensed matter theory. The headings of each chapter list the physicists, technicians, PhD students as well as the visitors and main collaborators which have taken part in the corresponding activities. In most cases, graduate students were involved in some of the work during their training period. Their names can be found in the section Facts and Figures (subsection Teaching and Training). The Index lists all the contributors and gives the page numbers at which their names appear. (authors)

  20. Progress report 2003 - coal; Rapport d'activite 2003 - charbon

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    This report presents the activities of the Group ''Charbonnages de France'' in 2003. The administration council is detailed in the new structure and organization. It concerns also the end of the industrial activities, the social policy, the mine sites remediation, the industrialization of mine regions, the financial results and key data. (A.L.B.)

  1. Le transfert de la direction des activités vers des institutions ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    la recherche-action participative (RAP);. • l'éducation et la formation;. • les communications et le ... financé des ateliers de formation en anglais et en français sur les méthodes de RAP, l'évaluation des risques ... En 2010, le programme ACCA a financé une deuxième phase de l'ACCFP qui sera dirigée par l'Institut d' ...

  2. Insecticidal and Repellent Activit ies of Laurinterol from the Okinawan Red Alga Laurencia nidifica

    Directory of Open Access Journals (Sweden)

    Takahiro Ishii

    2017-01-01

    Full Text Available An ethyl acetate (EtOAc extract of Laurencia nidifica was found to have toxic effect against brine shrimp larvae (Artemia salina. Bioassay-guided fractionation of the EtOAc extract resulted in the isolation of four known halogenated sesquiterpenes, laurinterol (1, isolaurinterol (2, aplysin (3, and a -bromocuparene (4. Their structures were established on the basis of spectral analysis and comparison with literature data. Among isolated compounds, only laurinterol showed strong toxicity against A. salina. Further experiments revealed that laurinterol also exhibited repellent activity against the maize weevil Sitophilus zeamais , insecticidal activity against the termite Reticulitermes speratus, and acetylcholinesterase (AChE inhibitory effect . This is the first report of insecticidal and repellent activities of laurinterol.

  3. Progress report 1996-1997; Rapport d`activite 1996-1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-12-31

    This document describes the activities of the DRFC (CEA-France) during the last 2 years. It is divided into 3 parts. In the first part experimental results concerning Tore-supra device are presented involving topics about long discharges, current generating experiments, edge plasma physics with results about the divertor and studies about MHD, turbulence and transport. The second part is dedicated to the daily operations and technological development of Tore-supra. A progress status of the CIEL project is made. The last part is devoted to the research program for the next stage and the long term. This program focuses on 5 fields: superconductive magnets, plasma facing components, negative ion sources, current generation and HF heating, and reactor studies. (A.C.) 61 refs.

  4. QUELQUES ELEMENTS DE L’ACTIVITE DE LA CAISSE EN 2006

    CERN Multimedia

    2007-01-01

    The complete translation of the article will be available next week.Composition du Conseil d’administration (au 31 décembre 2006) Membres Nommés par E. Chiaveri (suppléant : T. Lagrange) Directeur général du CERN D. Duret (suppléant : G. Deroma) Association du personnel du CERN F. Ferrini (suppléant : D.-O. Riska) Conseil du CERN R. Fischer (suppléant : K. Banse) Directeur général de l’ESO C. Hauviller (suppléant : G. de la Fuente) élu par les membres de la Caisse J. Lahaye (suppléant : P. Martel) élu par les membres de la Caisse P. Levaux (suppléant : F. Bello) Conseil du CERN J.-P. Matheys (suppléante : F. Ranjard) élu par les membres de la Caisse S. Myers (suppléant : F. Sonnemann) élu par les membres de la Caisse A.J. Naudi (suppléant : P. Geeraert) Directeur général du CERN Observateur des ...

  5. Quelques éléments de l'activité de la Caisse en 2005

    CERN Multimedia

    2006-01-01

    The english version of the article will be available next week Composition du Conseil d'administration (au 31 décembre 2005) Membres J. Bezemer (Suppléant : J.-P. Ruder)E. Chiaveri (Suppléant : T. Lagrange)R. Fischer (Suppléant : K. Banse)J. Lahaye (Suppléant : vacant)P. Levaux (Suppléant : F. Bello)J.-P. Matheys (Suppléante : F. Ranjard)S. Myers (Suppléant : F. Sonnemann)A.J. Naudi (Suppléant : P. Geeraert)I. Seis (Suppléant : G. de la Fuente)M. Vitasse (Suppléant : G. Deroma) Observateur des bénéficiaires J.-F. Barthélemy (Suppléant : F. Wittgenstein) Nommés par Conseil du CERNDirecteur général du CERNDirecteur général de l'ESOélu par les membres de la Caisse Conseil du CERNélu par les membres de la Caisseélu par les membres de la CaisseDirecteur général du CERNélue par les membres de la Caisse Association du personnel du CERN Conseil d'administration en accord avec l'Association du personnel Bureau de la présidence Membres J. Bezemer, Président nommé par le...

  6. 1998-1999 progress report; Rapport d'activite 1998-1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    This report reviews the activities of the LAPP (laboratory of physics of particles at Annecy-le-Vieux) which is one of the 18 laboratories that constitute IN2P3 (national institute of nuclear physics and physics of particles). Concerning current experiments the last results of Aleph, L3, Babar, Nomad, Wa102 and Na50 are presented. As for future experiments, in the last 2 years more than half the technical staff has been working on Atlas and Cms experiments which are dedicated to the detection of the Higgs boson and the exploration of new ranges of energy. The detection of gravitational waves is an old challenge, the LAPP takes part in the Virgo cooperation by providing the central part of the vacuum chamber, the signal detection system and the calibration system of the giant interferometer that will be in operation in 2002 near Pisa (Italy). The purpose of the Ams experiment is to study the anti-matter component of cosmic radiations. (A.C.)

  7. Activity report 1994-1998; Rapport d'activite 1994-1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    The emergence of new energy, chemicals and materials markets for agricultural products has created a need for major sustainable research. With this end in mind the scientific interest group AGRICE (AGRiculture for Chemicals and Energy) was created in 1994 by government bodies. This document presents a wide summary of the works in the following activities: the biofuels, the biomaterials and biomolecules, the oil-ester ethanol-ETBE and lignocellulosic processing chains, the environmental and economic evaluation, a financial statement. (A.L.B.)

  8. Socio-Economic analysis and fishing activites of lagoon and marine ...

    African Journals Online (AJOL)

    Fishermen have distinctive social and economic features which affect their fishing operations. The study was therefore designed to identify the socio-economic characteristics of fisher-folks living in lagoon and coastal communities and assesses the fishing activities. Frequency distribution, percentages, chi-square and ...

  9. Report of Activity, 1996 - 1997; Rapport d`activite 1996 - 1997

    Energy Technology Data Exchange (ETDEWEB)

    Chauvin, J. [Inst. des Sciences Nucleaires, Grenoble-1 Univ., 38 (France)

    1997-12-31

    The Institute of Nuclear Sciences in Grenoble is a merged research unit formed of the IN2P3 of CNRS and Joseph Fourier University of Grenoble. Founded in 1960, to foster theoretical and experimental nuclear physics it evolved continuously particularly in 90`s when its activity got concentrated on the main topics of the research fields `Quarks and Leptons`, `Particles and Nuclei in Universe`, `Hadron Physics`, `Nuclear Matter` and `New Systems in Nuclear Power Generation`. In the first field, research on massive right-handed neutrinos and on supersymmetric particles were initiated in 1996-1997. The experiments for measuring the neutrino magnetic moment are now operational and first results are expected in 1998. To study antimatter and dark matter in the Universe a magnetic spectrometer was built and is to be installed on the future international space station. In Hadron Physics first results are reported on the {eta} photoproduction and t{sub 20} experiment at TJNAF, representing important advances in the field of short-range nucleon-nucleon interaction. The work conducted by the fusion-fission group allowed to get new insight in the mechanisms of fusion of asymmetric systems. Also, important results concerning the superdeformed exotic nuclei were obtained by the nuclear structure team. Finally, the ISNG project on `Accelerator-driven sub-critical reactors` has advanced strongly in the last two years, in the framework of TARC experiment at CERN (collaboration RUBBIA) and SARA. The programs MUSE at MASURCA (Cadarache) utilizing the future accelerator GENEPI, simulation of sub-critical configurations and other relating programs recorded also important progress. In the field of theoretical physics few body problems, quarks or nucleons, particularly for A = 4 have recorded original developments, with significant insights on the meson properties in the nuclear environment

  10. IPSN activity report 1999; Rapport d'activite de l'IPSN 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    The IPSN (Institut de Protection et de Surete Nucleaire) carries out for the Government, studies and inspections on nuclear installations at many life steps (design, realisation, exploitation, shutdown and dismantling). To obtain quality researches, the Institut performs studies in all domains concerned by the safety and its improvement. The main projects of the year 1999, in the following topics are presented: the nuclear installations and the radioactive wastes safety, the crisis and nuclear materials management, the human and the environment protection, the international activities and cooperation, the quality insurance. It provides also information on the cooperation, the budget, the human resource policy and the communication activities. (A.L.B.)

  11. Activity report june 1998 - may 2000; Rapport d'activite juin 1998 - mai 2000

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    The aim of this report is to outline the scientific activity of the ''Service de Physique Theorique'' (SPhT), during the period june 1998-may 2000: activity in terms of structure, scientific research programs and results, publications, training and contracts. SPhT is one of the service of the ''Direction des Sciences de la Matiere'' (DSM), itself depending of the CEA Institution. The scientific domains covered by this report are: the quantum field theory and mathematical physics (phase transitions, integrable systems, random matrix, gravity and strings, quantum chaos and dynamical systems, correlation and super-correlation); nuclear physics, particle physics and astrophysics (quantum chromodynamics, physic beyond the standard model, the early Universe, from cosmic microwave background anisotropies to galaxies); statistical physics and condensed matter (statistical physics and models, spin glasses, quantum systems, soft condensed matter and biological physics). (A.L.B.)

  12. Haemolytic and Antimicrobial Activites of Saponin-Rich Extracts from Guar Meal

    Science.gov (United States)

    Saponin-rich GM extract was prepared by refluxing 25 g of GM with 250 ml of EtOH/H2O (1:1, v/v) for 3 h then filtering and distilling EtOH at 50oC. The refluxed extract was partitioned with equal volume of BuOH obtaining crude saponin-rich GM extract with 4.8 ± 0.6% DM of GM that was purified by RP...

  13. 1995-1996 progress report; Rapport d`activite 1995-1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-09-01

    This progress report is mainly devoted to the scientific activity of the LLB or carried out in collaboration with external laboratories. The activity of the LLB is split in several chapters dealing with: magnetism, superconductivity, structures (including lattice dynamics), phase transitions, C{sub 60}, quasi-crystal systems, disordered systems (amorphous, liquids, crystal solid solutions), biology, soft matter (polymers and colloids), physical metallurgy and materials science. Neutron scattering is the main tool used in all these topics but other techniques are also used such as: polarized neutron reflectivity, cold neutrons diffraction, NMR, synchrotron radiation etc. (J.S.)

  14. Calendrier des activités (de juillet 2010 à juillet 2011

    Directory of Open Access Journals (Sweden)

    2010-10-01

    Full Text Available Année 20107-8 septembre Sens– Faïences et majoliques, du xve au début du xviie siècle en France, à partir des découvertes archéologiques : pour un bilan des connaissances. Fabienne Ravoire et Alban Horry9-12 septembreCluny– Cluny, le monachisme et l’émergence d’une société seigneuriale (voir programme Bucema 1330 septembre-1er  octobreDijon-Besançon – Le vocabulaire et la rhétorique des comptabilités médiévales. Modèles, innovations, formalisation. Patrice BeckAnnée 201128 janvierDijon– CBMA...

  15. Commerce électronique et localisation urbaine des activités commerciales

    OpenAIRE

    Alain Rallet

    2001-01-01

    The aim of the article is to study the impact of electronic commerce on the urban organization of commercial activities. Despite of the weak level of the present development of e-commerce, significant transformations are expected. Generally confined to on line sales, electronic commerce is here defined more widely as the process of partial digitalization of commercial functions. Any business activity can be analyzed as a hybrid set of physical infrastructures and virtual functions. This hybri...

  16. Activité de butinage et de pollinisation de Apis mellifera adansonii ...

    African Journals Online (AJOL)

    ... species in Cameroon, bee foraging and pollination activities were observed in the area of Ngaoundere. ... Worker bees intensely harvested pollen and nectar. ... of H. annuus as a highly nectariferous and highly polliniferous bee plant.

  17. Activités chinoises dans le secteur minier en RDC

    DEFF Research Database (Denmark)

    Jansson, Johanna

    This poster presents an overview of the Chinese activities in the Democratic Republic of Congo's (DRC) mining sector. The poster outlines the three main strands of activity and explains the differences between them: 1) activities initiated and led by the Chinese government; 2) private, market...

  18. Report of Activity, 1996 - 1997; Rapport d`activite 1996 - 1997

    Energy Technology Data Exchange (ETDEWEB)

    Chauvin, J [Inst. des Sciences Nucleaires, Grenoble-1 Univ., 38 (France)

    1998-12-31

    The Institute of Nuclear Sciences in Grenoble is a merged research unit formed of the IN2P3 of CNRS and Joseph Fourier University of Grenoble. Founded in 1960, to foster theoretical and experimental nuclear physics it evolved continuously particularly in 90`s when its activity got concentrated on the main topics of the research fields `Quarks and Leptons`, `Particles and Nuclei in Universe`, `Hadron Physics`, `Nuclear Matter` and `New Systems in Nuclear Power Generation`. In the first field, research on massive right-handed neutrinos and on supersymmetric particles were initiated in 1996-1997. The experiments for measuring the neutrino magnetic moment are now operational and first results are expected in 1998. To study antimatter and dark matter in the Universe a magnetic spectrometer was built and is to be installed on the future international space station. In Hadron Physics first results are reported on the {eta} photoproduction and t{sub 20} experiment at TJNAF, representing important advances in the field of short-range nucleon-nucleon interaction. The work conducted by the fusion-fission group allowed to get new insight in the mechanisms of fusion of asymmetric systems. Also, important results concerning the superdeformed exotic nuclei were obtained by the nuclear structure team. Finally, the ISNG project on `Accelerator-driven sub-critical reactors` has advanced strongly in the last two years, in the framework of TARC experiment at CERN (collaboration RUBBIA) and SARA. The programs MUSE at MASURCA (Cadarache) utilizing the future accelerator GENEPI, simulation of sub-critical configurations and other relating programs recorded also important progress. In the field of theoretical physics few body problems, quarks or nucleons, particularly for A = 4 have recorded original developments, with significant insights on the meson properties in the nuclear environment

  19. RECREATIONAL TENDENCIES AND THE FACTORS PREVENTING UNIVERSITY STUDENTS PARTICIPATING TO RECREATIONAL ACTIVITES ACCORDING TO GENDER

    Directory of Open Access Journals (Sweden)

    Yaşar ÇORUH

    2014-07-01

    Full Text Available The purpose of the study of university students according to gender; recreational activity participation trends and participation in these events in the factors which may impede the examination of population of the study, Agri Ibrahim Chechen University 2012 - 2013 academic year, students who are studying the sample group the Islamic Sciences Faculty, Faculty of Arts and Education at the Faculty of normal and used in teaching students selected by the random sampling method and volunteered to participate in the research consisted of 490 individuals . Working as a data collection tool "Leisure Barriers" scale is used. Working for the analysis of two independent sample t - test and ANOVA were applied, no significant differences found as a result of these practices in order to determine the source of the Duncan test was performed. The scale used in the study in three of the six factors of the variations observed according to the specified arguments, but this perspective more " time and lack of interest in" the focus has been understood that.

  20. Evaluation de l'activité antioxydante des extraits hydro-ethanoliques ...

    African Journals Online (AJOL)

    activity of the hydro-ethanolic leaf and bark extracts of Piliostigma thonningii. The polyphenol content was determined with ... scavenger activity with respective IC50 values 39.3 ± 1.00 μg / ml and 109 ± 6.25 μg / ml. Reducing power of bark extract was ..... arginase inhibitory potentials of extracts from. Artocarpus altilis,. Ficus.

  1. Évaluation de l'activité entrepreneuriale dans la région MOAN ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Institution. American University of Beirut. Institution Country. Liban. Institution Website ... IDRC “unpacks women's empowerment” at McGill University Conference. Findings ... New funding opportunity for gender equality and climate change.

  2. L'invisible activité des tuteurs au prisme de l'analyse interactionnelle

    OpenAIRE

    Filliettaz, Laurent

    2017-01-01

    This paper focuses on mentoring practices as they are accomplished in the vocational training of early childhood educators. Students learning the occupation of early childhood educator are exposed to authentic work experiences during practicum. In such contexts, they are guided and supervised by mentors, who assist them in their early days at work. In the paper, we describe the fine-grained interaction mechanisms through which mentors exert an influence on the students' tasks, while they enga...

  3. ONERA. 1997 scientific and technical activities; ONERA. Activites scientifiques et techniques 1997

    Energy Technology Data Exchange (ETDEWEB)

    Vuillot, F; Lupoglazoff, N; Dupays, J; Basset, Th; Daniel, E [Universite de Provence, 13 - Marseille (France); Devincre, B; Veyssiere, P; Kubin, L; Saada, G [ONERA, CNRS,LEM (France); Hertl, M; Dorval, N; Jolly, J [ONERA-CNRS, Laboratoire Plasmas Reactifs en Interactions avec les Materiaux (France); Thierry, G; Guillen, Ph; Prieur, J; Lewy, S; Nastasi, V; Lerat, A; Sides, J; Gely, D; Chanetz, B; Pot, T; Jacquin, L; Geffroy, P; Merienne, M C; Mebarki, Y; Reijasse, P; Corbel, B; Reijasse, P; Murer, Y; Millan, P; Pauzin, S; Reulet, P; Coustols, E; Sauvage, Ph; Bissieres, D; Estivalezes, J L; Lavergne, G; Casalis, G; Troff, B; Thivet, F; Moschetta, J M; Deniau, H; Grondin, G; Grenon, R; Bettschart, N; Gardarein, P; Moens, F; Costes, M; Gaveriaux, R; Flodrops, J P; Paquet, J B; Leplat, M; Sgarzi, O; Zamuner, B; Moreau, P; Collin, G; Magre, P; Duterque, J; Hommel, J; Masson, C; Forconi, H; Fradin, C; Roehle, I; Hervat, P; Soucail, M; Octor, H; Marty, M; Dorvaux, J M; Lavigne, O; Mevrel, R; Poulain, M; Lapasset, G; Morel, A; Naka, S; Sanchez, C; Thomas, M; Krapez, J C; Lepoutre, F; Balageas, D; Chaboche, J L; Jung, O; Deletombe, E; Malherbe, B; Ousset, Y; Sudre, O; Parlier, M; Guichet, B; Bretheau, T; Kruch, S; Vassel, A; Boust, F; Flavin, E; Petot, D; Rapin, M; Morvan, A; Lebihan, D; Petitjean, B; Leconte, P; Grisval, J P; Sauvignet, C; Johan, Z; Loiseau, A; Lesturgie, M; Martineau, P; Titin-Schnaider, C; Vieillard, G; Dreuillet, P; Castelli, J C; Lacour, D; Ferriere, X; Bonnet, P; Gobin, V; Alliot, J C; Grisch, F; Labrune, L; Larigaldie, S; Ory, M; Lalande, P; Bondiou-Clegerie, A; Kayser, P; Deyrac, F; Le Traon, O; Besson, C; Serrot, G; Bodilis, M; Duffaut, J; Conan, J M; Mugnier, L; Michau, V; Fusco, T; Madec, P Y; Rousset, G; Simoneau, P; Barillot, Ph; Dolfi, A; Robineau, J; Mugnier, L; Cassaing, F; Rousset, G; others, and

    1998-12-31

    The ONERA is the first French research office in the aerospace domain. This annual report summarizes the main research studies carried out by the different ONERA departments in 1997 in the domains of fluid mechanics and energetics (numerical simulation, aero-acoustics, aerodynamics, propellants, propulsion systems), materials and structures (metals and processes, solid mechanics, material testing, composite materials and systems, structure dynamics, microstructures), physics (space environment, electromagnetism and radars, physical measurements, optics), data processing and systems, and technical means. (J.S.)

  4. Progress report 1999-2000; Rapport d'activite 1999-2000

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    This document presents the activities of the CENBG for the 1999 and 2000 years. The activities are arranged into 7 topics: 1) astro-particles, 2) high spins and big deformations, 3) fundamental interactions, 4) exotic nuclei, 5) the down end of the nuclear fuel cycle and ADS (accelerator driven system), 6) theoretical physics and 7) at the interface between physics and biology. Among a lot of achievements relevant to INIS we can note: -) the investigation of 2 new modes of decay: the bound internal conversion and the Pauli forbidden bound internal conversion, -) the progress made on the Nemo-3 experiment whose purpose is the possibility of detecting the neutrinoless double beta decay from the kinematics specificities of the 2 electrons released, -) the first observation of the doubly-magic nucleus Ni{sup 48}, -) the beta delayed proton and gamma -ray spectroscopy of Mg{sup 21} and Si{sup 25} nuclei, -) the identification of the fundamental state of Li{sup 10}, -) the measurement of the masses of nuclei close to N = Z line in the region A = 80, -) the measurement of the beta decay of Ga{sup 62} (T = 116 ms), and concerning ADS technology: -) the neutron capture cross-section of Th{sup 232} has been measured in the energy range from 60 keV to 2 MeV, -) the determination of neutron induced fission cross-section of Pa{sup 233} in the fast neutron energy range from 0.5 to 10 MeV, and -) the measurement of isotopic distributions for all residual elements from Ti to Pb produced in the reaction 1 A.GeV Pb{sup 208} on proton. (A.C.)

  5. Annual review 2000-2001; Rapport d'activite 2000-2001

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    This report reviews the activities of the LAPP (particle physics laboratory of Annecy-le-Vieux) for the years 2000-2001. The central themes of research are: 1) the standard model and its extension, 2) the study of CP violation (contribution to the experiments BABAR and LHCb), 3) the search for the Higgs'boson (contribution to the experiments ALEPH, L3, ATLAS and CMS), 4) physics of neutrinos (contribution to the experiments NOMAD and OPERA), 5) the study of anti-matter and cosmic radiation (contribution to the experiment AMS and to the project EUSO embarked on the international spatial station), and 6) the search for gravitational waves (contribution to the experiment VIRGO)

  6. Activity report 1998/1999; Rapport d'activite 1998/1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    The aim of this report is to outline the main developments of the ''Departement d'Etudes des Combustibles'' (DEC), during the period 1998-1999: developments in terms of structure, staff, scientific research programs, publications and contracts. DEC is one of the department of the ''Departement des Reacteurs Nucleaires'' (DRN), itself depending of the CEA Institution. This report is divided in three parts. The first part gathers information on staff, budget and management. The part 2 presents the scientific programs in the domains of the nuclear Park competition improvement and renewal, the minor actinides incineration, thermo-mechanical codes and atomic calculations on fuel. The last part is devoted to publications,communication and training. (A.L.B.)

  7. effet de l'interaction lumiere-salinite sur l'activite du photosysteme ii

    African Journals Online (AJOL)

    ACSS

    19 nov. 2015 ... effects on the photochemical activity of PSII driving, and to photoinhibition. ... It is quite sufficient to eliminate only one factor of the association light-salinity for the PSII ... a Creative Commons Attribution 3.0 Uganda License.

  8. Report of Activity, 1994 - 1996; Rapport d`activite, 1994 - 1996

    Energy Technology Data Exchange (ETDEWEB)

    Gutbrod, H H [Laboratoire de Physique Subatomique et des Technologies Associees - SUBATECH, Centre National de la Recherche Scientifique, 44 - Nantes (France)

    1997-10-01

    SUBATECH (Laboratory of Subatomic Physics and Associated Technologies) has been created in 1994 by three founding fathers, the Ecole des Mines de Nantes, the University of Nantes and the Institute IN2P3/CNRS. The challenging new idea was to house under one roof groups working in fundamental research as well as those working in applied research. During the first year the experimental activities focused on nuclear collisions at lower energies, e.g. reactions mechanism studies with the detector INDRA at GANIL. The laboratory specialized in the analysis of two particle correlations which allows to study the dynamics and the geometry aspects of the reaction mechanism. In the area of subatomic Physics our teams study the collisions of heavy ions at different energies to investigate the multifragmentation of nuclei or to search for the quark gluon plasma. In the area of associated TECHnologies the accent is on the problems related to nuclear waste, from the `treatment of nuclear waste with new method (GEDEON)` or its interaction with bacteria to the research of the chemistry of Tc, Ac-225 and Bi-213 and the program of alpha-immunotherapy on micro-tumors. In the field of fundamental science, in parallel to the work on simulations for the new projects, the Subatech scientists could start work on prototypes for the experiments ALICE at the LHC at CERN (scheduled for the year 2005) and STAR at RHIC at Brookhaven (scheduled for 1999). The experimental groups work closely together with the theory groups of Subatech. The author of the VENUS model works in Subatech. This internationally known model is amongst the most important code capable to describe many of the SPS data. Another theory group works on the analysis of multiparticle correlations in the WA98 data with the wavelet theory. Finally, a third group is currently studying the multifragmentation in the final state at GANIL

  9. Activité antifongique de quelques plantes de la flore ivoirienne

    African Journals Online (AJOL)

    Administrateur

    Les extraits dichlorométhane, méthanolique et aqueux, réalisés à partir des poudres de feuilles ou de rameaux feuillés de chaque espèce, ont permis .... Les souches de référence proviennent des collections enregistrées à l'American Type Culture ... dans un verre de montre, sous hotte, l'extrait dichlorométhane. La poudre ...

  10. Activity report of the DPHD 2000; Rapport d'activite du DPHD 2000

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    This report concerns the activities of the department of protection of health for man and dosimetry at I.P.S.N. for the year 2000. It studied and presents dosimetry, the first chapter is relative to external, internal and in case of accident, the second chapter discusses radiobiology and radio-pathology through biological dosimetry, diagnosis and prognosis of radioinduced damages and therapy of radioinduced damage, the third chapter is devoted to evaluation and management of risks with radiation protection, epidemiology and management of risks, the fourth chapter concerns the dosimetric and radio-toxicologic surveillance with the surveillance of internal exposure and the radio-toxicologic surveillance. (N.C.)

  11. 1998-1999 progress report; Rapport d'activite 1998-1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    This report presents the activities of the ISNG (Grenoble Nuclear Sciences Institute) for the period 1998-1999. This presentation is made up of 7 chapters: (1) quarks and leptons, (2) neutrinos and astro-particles, (3) hadron physics, (4) hybrid reactors and nuclear matter, (5) theoretical physics, (6) instrumentation and technical services, and (7) formation and published work. In the framework of Muse experiments, a pulsed neutron generator of very high intensity has been built in order to realize the first test hybrid reactor. (A.C.)

  12. Activity report 1998/1999; Rapport d'activite 1998/1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    The aim of this report is to outline the main developments of the ''Departement d'Etudes des Combustibles'' (DEC), during the period 1998-1999: developments in terms of structure, staff, scientific research programs, publications and contracts. DEC is one of the department of the ''Departement des Reacteurs Nucleaires'' (DRN), itself depending of the CEA Institution. This report is divided in three parts. The first part gathers information on staff, budget and management. The part 2 presents the scientific programs in the domains of the nuclear Park competition improvement and renewal, the minor actinides incineration, thermo-mechanical codes and atomic calculations on fuel. The last part is devoted to publications,communication and training. (A.L.B.)

  13. A a Antiox and an pl xidant ntibacte ants a activit erial a against y ...

    African Journals Online (AJOL)

    sunny

    The chemical treatments recommended for this disease only reduced the ... Although, the control of this bacterial disease continues to be difficult ... on health and the environment, research and ..... relative wealth of some MAP with polyphenols was also ... and least expensive solvent, namely water (Talibi et al.,. 2011 ...

  14. Amorce. Activity report 1999; Amorce. Rapport d'activite 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    Amorce is a French association which groups 173 organizations and 95 professionals. Its domain of activity concerns the district heating networks, the energy management by territorial organizations and the management of municipal wastes. This activity report presents the highlights of the 1999 year in the life of the association (growth of the association, personnel, reputation, financial situation, European activity, training, development of a database on wastes), and in each domain of activity: district heating and energy (deregulation of the electricity market, difficulties encountered in the domain of district heating networks, greenhouse effect, energy service schemes, renewable energies), and wastes (technical choices, reduction of government helps, ecological packaging, non-addressed mail, legal problems..). (J.S.)

  15. Etude de l'activité antifongique d'extraits de Cymbopogon citratus ...

    African Journals Online (AJOL)

    Cependant, l'introduction des pesticides bio s'avère une alternative judicieuse et moins onéreuse pour la production, d'où l'objectif de notre étude qui était de promouvoir l'efficacité des extrait aqueux et huiles essentiels de quelques plantes locales dans la lutte contre les microorganismes. A travers la méthode de la ...

  16. Activity annual report 1998; Rapport annuel d'activite 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    The aim of this report is to outline the main developments of the ''Departement d'entreposage et de stockage des dechets'' (DESD), during the year 1998: developments in terms of structure, scientific research programs, publications and contracts. DESD is one of the department of the ''Direction du Cycle du Combustible'' (DCC), itself depending of the CEA Institution. This report is divided in nine chapters which gather results of studies and research programs in the following domains: liquid wastes processing, solid wastes processing, wastes packaging, measures analysis and characterization, long time storage, packages behaviour at long-dated, chemistry and environmental transport of the storage, simulation and environment. (A.L.B.)

  17. Progress report 1998 - 1999; Rapport d'activite 1998 - 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    This document reviews the activities of CPPM (center of particle physics in Marseille) for the years 1998 - 1999. The main axis of research are particle physics, elementary components of the matter and their interactions, and astro-particles. The laboratory takes part in international collaborations concerning experiments at CERN, DESY (Hamburg) and Fermilab (Chicago), it also contributes to the design of particle detectors for the large hadron collider (LHC) and for the undersea detection of cosmic neutrinos (Antares). The activities of CPPM have been reported under 8 topics : 1) the Aleph experiment, 2) the Antares project, 3) the Atlas experiment, 4) the Cplear experiment (dedicated to the study of CP, T and CPT symmetries in the system of neutral kaons), 5) the DO experiment (whose aim is to detect supersymmetric particles at the Tevatron), 6) the H1 detector (its main aim is the study of the proton structure at the Hera electron-proton collider), 7) LHCb (it is a second generation experiment dedicated to the study of CP breaking and rare decays in the beauty sector), and 8) Susy, Susy is a working group inside the CNRS, it gathers theoricians and experimenters from different backgrounds, its aim is to study supersymmetry in order to catch a glimpse of the physics beyond the standard model. (A.C.)

  18. Progress report 1998 - 2000; Rapport d'activite 1998 - 2000

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    This document reviews all the activities of the CSNSM (nuclear spectrometry and mass spectrometry center). The activities, developments and particular hits or results are presented within 10 themes: 1) nuclear structure, 2) induced fission and exotic nuclei, 3) atomic mass and basic symmetries, 4) nuclear astrophysics, 5) micro-meteorites, 6) mass spectrometry through an accelerator, 7) solid state physics, 8) superconductivity, 9) physical chemistry aspects of irradiation, and 10) electromagnetic separation of ions.

  19. effet de la toxicite du fer sur l'activite photosynthetique du riz

    African Journals Online (AJOL)

    AISA

    est utilisée dans les réactions photochimiques de la photosynthèse, une deuxième dissipée .... 4,7 ; C organique, 1,87 % ; P total, 226 mg kg-1 ; K, 325 mg kg-1 ; Ca, 68 mg kg-1 ; Fe, 3 mg kg-1) et à Korhogo (pHH2O, 5,9 ; pHKCl, 4,1. ; C organique, 1,02 % ; P total, 192 mg kg-1 ;. K, 310 mg kg-1 ; Ca, 64 mg kg-1 ; Fe, 7 mg ...

  20. Groupe d'évaluation de la réglementation des activités ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    C'est en Amérique latine que l'exploitation d'une entreprise coûte le plus cher. ... Son mandat sera multiple : examiner et approuver les diverses ... Analytical framework on climate reforms for doing business and business informality in Latin ...

  1. Évaluation de l'activité antimicrobienne de quatre feuilles utilisées ...

    African Journals Online (AJOL)

    SARAH

    30 nov. 2015 ... Objectives: Plant leaves used as food packaging having thus a ... Daniellia oliveri and Thalia geniculata used as food packaging preserve better foods during storage. Extract ...... of selected essential oil components on Gram.

  2. IPSN activity report 1999; Rapport d'activite de l'IPSN 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    The ''Institut de Protection et de Surete Nucleaire'' (IPSN), carries out researches and expert studies needed to manage nuclear risks and their consequences on people and environment. These activities cover the installation safety, the radioactive matter transport, the public health and environmental control, the nuclear matters safety and control and the crisis situation management. The IPSN have got also a mission of public information and participates to international actions in the domain of scientific researches or expert's report. This annual report presents the highlights of the year 1999, information on staff, budgets and geographical situation. Then technical and scientific papers gathers the activities of the year covered by the IPSN: the ''Free Tribune'', installations and radioactive wastes safety, crisis and nuclear matter management, public health and environment control, international cooperation. (A.L.B.)

  3. Progress report I.R.S.N. 2003; Rapport d'activite IRSN 2003

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    This report is divided in six chapters. The first one is devoted to the safety of civil installations, transport and radioactive wastes. In this chapter we find the safety of PWR type reactors, the safety of Cabri reactor, ITER tokamak, the storage of radioactive waste and the criticality of packages with actinides. The second chapter concerns the protection of man and environment, we find the radiation monitoring of workers, the medical management of irradiated personnel, the radiation protection of nuclear power plants. The third chapter is relative to the national defense. The fourth chapter tackles the international relations and the part taken by I.R.S.N. in the Europe construction. The fifth chapter gives the contribution to public information, communication and training. The sixth and last chapter explains the quality policy at I.R.S.N. and how the management is made by a quality option. (N.C.)

  4. Progress report 2001-2002; Rapport d'activite 2001-2002

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    The document reviews the activities of the linear accelerator laboratory (LAL) for the years 2001 and 2002. Most part of these activities are active collaborations in international programs. Some experimental programs like Aleph (apparatus for Lep physics) and Delphi (detector with lepton, photon, and hadron identification) at the Lep (CERN) or Na48 (search for direct violation of the CP invariance) have entered their last stage. Others like H1 (electron-positron experiment at Hera), Babar (measurement of CP violation in the B{sup 0}B-bar{sup 0} system) at Slac (Stanford), or D0 (search for new particles at the Tevatron) at Fermilab, are fully operating and this document describes the contribution of the LAL for each of them. The preparation of experiments for the future LHC has represented the core of LAL's technical activities. This document reviews these activities and achievements for the Atlas (air toroid LHC apparatus system) and LHCB (large hadron collider beauty) experiments. The LAL is also involved in the definition of the future high energy linear electron-positron collider (FLC). The LAL contributes to some experiments of neutrino physics through Nemo (violation of the lepton charge) and Opera (neutrino oscillations) experiments and to various astro-particles experiments such as Eros (micro-lensing effect), Archeops and Planck (cosmology), Virgo (gravitation waves) and Auger (very high energy particles showers). Another important part of LAL's activities is teaching activity mainly inside the curriculum of Paris-sud university. (A.C.)

  5. Activity report 1998-1999; Rapport d'activite 1998-1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    The aim of this report is to outline the main developments of the ''Departement d'Ecophysiologie Vegetale et de Microbiologie'', (DEVM) during the period 1998-1999. DEVM is one of the Department of the CEA Institution. This report presents the activities of the laboratories of the department. Among these laboratories, two laboratories have applications of radiation: the laboratory of vegetal radiobiology and the laboratory of research on food quality. The research programs on radiation effects on living organisms and regulation of food or drug radiation process, respectively for the two laboratories, are discussed. (A.L.B.)

  6. Report of Activity, 1996-1997-1998; Rapport d'activite 1996-1997-1998

    Energy Technology Data Exchange (ETDEWEB)

    Bizot, J C [ed.; Lab. de l' Accelerateur Lineaire, Paris-11 Univ., 91 - Orsay (France)

    1999-07-01

    This report describes the activity of Linear Accelerator Laboratory at Orsay on 1996, 1997, and 1998. The physics research is focused onto three issues. The first has as objective the precise test of standard model in the sector of gauge boson interactions at LEP (ALEPH, DELPHI) and HERA (H1) and in the sector of matter properties (tau lepton, b quark, CP violation and neutrino mass). The second is a search for high energy new particles, particularly the Higgs boson and the particles predicted by supersymmetry. Finally, there is an astrophysics program aiming at gravitational wave detection and precise measurement of the relic background radiation by gravitational lensing and of high energy photon showers. The LAL plays a foremost role in the construction of the large experiments ATLAS, NEMO, VIRGO (especially mechanics) and BABAR and LHCb (electronics). The computing sector entered a new phase of critical mutations (relating to new tools and languages). Reported are also the LAL contributions to the TTF injector, the test station installed at Hamburg for the future superconductor e{sup +}e{sup -} collider TESLA and the effort in superconductor accelerator R and D of the DAPNIA-IN2P3 French collaboration. An illustration of the LAL efforts for developing applications is the electron beam project ELYSE designed for chemical utilizations, based on the experience with the photon triggered gun CANDELA.

  7. Activity report 1995-1998; Rapport d'activites 1995-1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    The aim of this report is to outline the scientific activity of the ''Service des Photons Atomes et Molecules'' (DRECAM), during the period 1995-1998: activity in terms of structure, scientific research programs and results, publications, training and contracts. DRECAM is one of the service of the ''Direction des Sciences de la Matiere'' (DSM), itself depending of the CEA Institution. The scientific domains covered by this report are: the excited atoms, multicharged ions - atoms collisions, molecules and aggregates in extreme conditions, covalent structures, new light sources. (A.L.B.)

  8. Progress report I.R.S.N. 2002; Rapport d'activite IRSN 2002

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    This progress report is divided in three parts. The first one explains the missions of I.R.S.N. and its organisation. The second part concerns the activities: to protect man and environment, contribution to the safety of installations and transports, to look after the non proliferation, to be a driving force in the international relations, to contribute to the information and training. The third part is relative to the quality and means of the development, to continue the quality objectives, the human resources and social relations, the budget in 2002. (N.C.)

  9. Progress report 2000-2001; Rapport d'activite 2000-2001

    Energy Technology Data Exchange (ETDEWEB)

    Albrand, S; Carbonell, J; Chauvin, J; Compara, V; Crepe-Renaudin, S; Conto, J.M. de; Favro, C; Lleres, A; Merle, E; Quemener, G; Renault, C; Tur, C

    2001-07-01

    This document reports the activities of the ISN (nuclear sciences institute of Grenoble) for the 2 last years 2000, 2001. ISN's teams are involved in 3 research axis: elementary particles and hadrons, astro-particles and new systems for producing nuclear energy. In this document the activities have been classified into 18 topics: 1) the ATLAS experiment (detector for LHC), 2) the D0 experiment (electron identification and b-tagging), 3) the DELPHI experiment (R-parity violation), 4) the AMS experiment (embarked cosmic ray detector), 5) the cosmic microwave background (CMB), 6) the MUNU experiment (magnetic moment of antineutrinos), 7) the EUSO experiment (detection of the extreme energy cosmic rays), 8) 2 parity violation experiments (GO and SAMPLE), 9) the photo-production of mesons on proton (GRAAL), 10) a new isomeric state for Sb{sup 136}, 11) a new shape isomer for Kr{sup 72}, 12) new {mu}s isomers near Sn{sup 132}, 13) laser spectroscopy measurements for very neutron-rich tin isotopes, 14) hybrid demonstrator, 15) hadron-therapy (Etoile project), 16) positron emission tomography, 17) theories and models, and 18) technological work on accelerators and ion sources. (A.C.)

  10. IPSN activity report 1999; Rapport d'activite de l'IPSN 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    The IPSN (Institut de Protection et de Surete Nucleaire) carries out for the Government, studies and inspections on nuclear installations at many life steps (design, realisation, exploitation, shutdown and dismantling). To obtain quality researches, the Institut performs studies in all domains concerned by the safety and its improvement. The main projects of the year 1999, in the following topics are presented: the nuclear installations and the radioactive wastes safety, the crisis and nuclear materials management, the human and the environment protection, the international activities and cooperation, the quality insurance. It provides also information on the cooperation, the budget, the human resource policy and the communication activities. (A.L.B.)

  11. Progress report 1998/1999; Rapport d'activite 1998/1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    Among the significant technological achievements of 1998-99, we will note in particular the manufacture of a lower hybrid antenna. This has large size and is shielded from the plasma by side protection incorporating the same technology that is used in the limiter of the CIEL project. This antenna was tested successfully in the autumn 1999; its capacity is 4 MW steady state. Substantial progress was achieved in testing the 118 GHz gyrotrons that are intended to deliver 400 kW with a pulse length of 210 seconds. Pulses lasting some 15.5 seconds were obtained on load during the summer 1999 and were limited only by the performance of the load and by out-gassing. At these pulse lengths, the parameters of the tube are already quasi-stationary. The tests will begin again in the Spring of 2000 with a more suitable load. The very first tests on plasma took place in the Autumn of 1999 showing a strong absorption of the waves by the plasma. Work in the field of the high frequency heating systems focused on problems of local power deposition close to the antenna. This problem is exacerbated, both at the lower hybrid and at the ion cyclotron frequencies, by the need to carry out long pulse discharges. Modelling the localised effects that have been observed contributes to the evolution of the design of both types of antenna and holds out the prospect of fully-validated solutions for the 'next step'. Using the technology developed for the CIEL project in the field of the high heat flux components also made it possible to implement side protections for the antennas that can withstand the temperature rise related to these local effects. Studies in various modes of heating or current drive were continued, in order to explore the corresponding scenarios but also to make progress in modelling the phenomena of wave propagation and absorption. In the field of ion cyclotron waves, the implementation of {sup 3}He minority heating made it possible to identify the conversion of the fast wave into a Bernstein wave. The scenario of coupling the fast wave to the electrons was also studied from the point of view of scenarios relevant to the conditions of the 'CIEL' project. In the field of the lower hybrid waves, we will note in particular the use of the hard X-ray cameras to observe the spatial and energy distribution of the fast electrons, coupled with the observation of the electron cyclotron radiation. This made it possible to carry out fine observations related to the absorption of the hybrid waves. In particular, the reality of the transition to the LHEP mode and the improvement of confinement which it represents, were clearly established. The DRFC carried out a certain number of studies relating to confinement in various modes of plasma. A good confinement mode was obtained with high density and ion cyclotron minority heating. This mode, which brings to mind certain aspects of the 'Enhanced Radiation' mode, developed by the physicists of TEXTOR, has performance equivalent to the 'Elmy-H' mode, foreseen as the basis for ITER. An active programme of research is underway to elucidate the reasons for this good confinement. In particular, the respective roles played by magnetic shear and rotational shear in the stabilisation of turbulence are being studied. (author)

  12. 1998-1999 progress report; Rapport d'activite 1998-1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    This report reviews the activities of the LAPP (laboratory of physics of particles at Annecy-le-Vieux) which is one of the 18 laboratories that constitute IN2P3 (national institute of nuclear physics and physics of particles). Concerning current experiments the last results of Aleph, L3, Babar, Nomad, Wa102 and Na50 are presented. As for future experiments, in the last 2 years more than half the technical staff has been working on Atlas and Cms experiments which are dedicated to the detection of the Higgs boson and the exploration of new ranges of energy. The detection of gravitational waves is an old challenge, the LAPP takes part in the Virgo cooperation by providing the central part of the vacuum chamber, the signal detection system and the calibration system of the giant interferometer that will be in operation in 2002 near Pisa (Italy). The purpose of the Ams experiment is to study the anti-matter component of cosmic radiations. (A.C.)

  13. TIGF Activity Report 2007; TIGF rapport d'activite 2007

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    Total Infrastructure Gaz France (TIGF) provides and develops natural gas transport and storage services on a European scale to meet its customers' needs. It achieves a turnover of almost 300 million Euros and employs some 370 people. Backed by 50 years of expertise, TIGF is a major player in the natural gas market in 15 departements in South-West France. TIGF in figures: 5,000 km of pipelines, 13% of the large scale French transport gas pipeline network, 15% of the national gas volume transit operations, 22% of France's gas storage capacity. This document is the 2007 activity report of TIGF. Content: Message from the Chairman, TIGF, the birth of an ambition, Governance, Management report - overview of the 2007 Financial Year, Market deregulation and development prospects.

  14. Progress Report 1994-1995; Rapport d`Activite 1994-1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    This first volume of 1994 to 1995 activity report, of Nuclear Physics Institute (Orsay, France) gives a general overview of the research programs conducted in the fields of nuclear structure and quantum mechanics. The main topics are: structure of atomic nuclei, physics of nuclei in excited states, field theory, hadronic physics, quantum mechanics of chaotic systems. (D.L.).

  15. Évaluation de l'activité entrepreneuriale dans la région MOAN ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Le CRDI lance un nouveau projet dans la région de l'ANASE. L'honorable Chrystia Freeland, ministre du Commerce international, a annoncé le lancement d'un nouveau projet financé par le Centre de recherches pour le développement international (CRDI). Voir davantageLe CRDI lance un nouveau projet dans la région ...

  16. Activity report CEREM 1998; Rapport d'activite CEREM 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    The CEREM (Centre d'Etudes et de Recherches sur les Materiaux) is one of the departments in CEA. The aim of this report is to outline the main developments in the department activities. It si divide din three main chapters. The first one presents the material design and processing, the researches on the energy electrochemical storage and a presentation of the robotic activities. The chapter 2 deals with the material characterization and testing. The last chapter presents the works of simulation on Material Science. The report is completed by some data on the budget and the staff. (A.L.B.)

  17. CEREM Report of Activity, 1998; Rapport d'activite CEREM, 1998

    Energy Technology Data Exchange (ETDEWEB)

    Mathiot, Alain [ed.] [CEA Centre d' Etudes et de Recherches sur les Materiaux, CEREM, 17, rue des Martyrs, 38054 Grenoble Cedex (France)

    1999-07-01

    Like in previous years the present report is not a comprehensive display of all the scientific results obtained but a selection of 'significant facts' recorded in the different sectors of CEREM activity. The goal is to show how the expectations of the partners from both CEA and industrial community are satisfied. The CEREM R and D activity in the field of materials and robotics is mainly oriented toward the nuclear domain. The following directions of activity were pursued: 1. Development of numerous materials and technological procedures for future reactors; 2. Testing, damage study and modelling for current reactors; 3. Works on the environmental compliance of the materials especially with the December 1991 low regarding the nuclear waste management; 4.Developing robots devoted to nuclear installations dismounting; 5. Safety of current and future reactors. In addition, many other industrial domains are targeted for the applicable studies developed at CEREM, among which: - the renewable energy sources, particularly batteries and fuel cells; - materials for automobile and aeronautics industries; - advanced materials with high wear and tear resistance developed by surface treatment. The experience acquired in these fields was helpful in modelling, developing and implementing various materials assembling.

  18. Mining activities of the Cogema group; Activite miniere du groupe Cogema

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    1996-12-31

    This brochure is a general presentation of the mining activities of the COGEMA group. COGEMA is specialized in the whole operations of the nuclear fuel cycle and is responsible for about 20% of the worldwide uranium production with the exploitation of French mines and its participation in the exploitation of mines abroad, mainly in Canada, USA, Niger and Gabon. This document is divided in seven chapters: the search for uranium ores and the mining prospecting, the uranium deposits and the worldwide market, the exploitation of uranium ores (techniques and mines exploited by the COGEMA group), the processing of ores, the radioactivity and the mining installations, the environmental protection and the rehabilitation of sites (environmental survey and management of mining sites), application of COGEMA`s know-how to other domains such as: gold ore processing, research and development studies, instrumentation and radioprotection, soils cleansing and sites rehabilitation. This brochure is illustrated with several photos and pictures. (J.S.).

  19. IPSN international activities in 1999; Les activites internationales de l'IPSN en 1999

    Energy Technology Data Exchange (ETDEWEB)

    Anon

    2000-09-01

    This article is a reprint of a chapter taken from the 1999 activity report of the French Institute of Nuclear Protection and Safety (IPSN) and devoted to the international activities of the IPSN, in particular the cooperation of IPSN with its German homologue GRS (Gesellschaft fuer Anlagen und Reaktorsicherheit): assistance to Eastern Europe countries (development of regulation and constitution of safety files in Ukraine, transfer of computer codes and training, safety evaluation of the Mochvce nuclear power plant in Slovakia, reduction of the risks generated by the Tchernobyl shelter, assistance for the decommissioning of the Tchernobyl power plant, analysis of improvements proposed for the Medzamor unit 2 of Armenia, evaluation of fire hazard risks, assistance to Lithuania for the licensing of the Ignalina 1 unit); cooperation with China; international cooperation about the methods and tools for crisis management; international collaboration about IPSN's serious accident codes; extension of cooperation with Japan in radiation protection and radio-ecology; nuclear safety exercises in Russia and Armenia; development of Russia's national control of nuclear materials; collaboration with the medical radiological research center of Obninsk (Russia); radiation protection assistance in Turkey after a source accident; neutron measurements at the Vandellos 2 power plant (Spain); European intercomparison of neutron dosimetry; international intercomparison of uranium dosimetry in urines; participation to European research programs; construction of a database about the Tchernobyl accident consequences; organization of the Eurosafe European forum on the safety of nuclear facilities; development and validation of the Astec computer code for the simulation of nuclear accidents; evaluation report concerning the French-German EPR reactor project. (J.S.)

  20. Nouvelles et activités | Page 3 | CRDI - Centre de recherches pour le ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    L'Initiative des conseils subventionnaires de la recherche scientifique en Afrique subsaharienne remporte le prix de la diplomatie scientifique. L'Initiative des conseils subventionnaires de la recherche scientifique en Afrique subsaharienne (IOSRS) a reçu un prix de la diplomatie scientifique de la part du gouvernement de ...

  1. Activities of the Ameth laboratories network; Activites du reseau de laboratoires Ameth

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-12-31

    Thermal exchanges are of prime importance in industrial processes, space heating and air conditioning, cooling processes or heat exchangers design. University research laboratories and engineering schools created the Ameth network in order to share their means and competences in heat transfer research, to draw bridges between different subjects and to organize coordinated projects. In 1997 the Ameth laboratories have carried out 10 projects grouped into three themes: the thermal hydrodynamic instability and the limit boundary control, the transfers with liquid/vapor phase change and the transfers with solid/liquid phase changes. These projects and their first results are reported in this book of proceedings. This conference day was jointly organized by the thermal engineering university group (GUT) and the French society of thermal engineers. The ten communications presented in this book deal successively with: `the active control of a Poiseuille flow in the presence of volume heating`; `the control of instabilities, transition and thermo-convective flow transfers in cavities: application to the ventilation of rooms`; `the control of heat transfers during space-time flow disturbances in cylindrical channels`; `the characterization of surface heat transfers using transient methods improved for boiling in pool applications`; `the intensification of heat exchanges during boiling in confined medium`; `the evaporation and boiling in porous media`; `the characterization of heat transfers in micro-heat pipes`; `the AmETh 3-1 operation: experimental and numerical analysis of thermal resistances at the polymer-mould contact and developing during solidification`; `the analysis of solidification phenomena at the interface between a substrate and a melted medium`; and `the heat transfers with solid-liquid phase change`. (J.S.)

  2. ITT - Fonds d'activités du BRA : l'IPS | CRDI - Centre de recherches ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Cette subvention permettra à l'Institute of Policy Studies (IPS) du Sri Lanka, bénéficiaire de l'Initiative Think Tank, de réaliser des recherches de qualité, axées sur les politiques, sur la migration économique. La recherche sera centrée sur des questions soulevées par la National Human Resources and Employment Policy ...

  3. Partial oxidation of municipal sludge with activited carbon catalyst in supercritical water

    International Nuclear Information System (INIS)

    Guo Yang; Wang Shuzhong; Gong Yanmeng; Xu Donghai; Tang Xingying; Ma Honghe

    2010-01-01

    The partial oxidation (POX) characteristics of municipal sludge in supercritical water (SCW) were investigated by using batch reactor. Effects of reaction parameters such as oxidant equivalent ratio (OER), reaction time and temperature were investigated. Activated carbon (AC) could effectively improve the mole fraction of H 2 in gas product at low OER. However, high OER (greater than 0.3) not only led to the combustion reaction of CO and H 2 , but also caused corrosion of reactor inner wall. Hydrogenation and polymerization of the intermediate products are possible reasons for the relative low COD removal rate in our tests. Metal oxide leached from the reactor inner wall and the main components of the granular sludge were deposited in the AC catalyst. Reaction time had more significant effect on BET surface area of AC than OER had. Long reaction time led to the methanation reaction following hydrolysis and oxidation reaction of AC in SCW in the presence of oxygen. Correspondingly, the possible reaction mechanisms were proposed.

  4. The globalization of energy activities: what are the issues?; La mondialisation des activites energetiques: quels enjeux?

    Energy Technology Data Exchange (ETDEWEB)

    Percebois, J. [Montpellier I Univ., (France)

    2001-03-01

    Globalization in many sectors such as information, research and development, finance, technology, etc. led to the implementation of transnational networks to facilitate decision-making. The result is that governments are left to regulation functions. This globalization also led to a larger gap between North and South. Developing countries represent 80 per cent of world population, yet only produce less than 33 per cent of gross domestic product (GDP). In the energy sector, developing countries have limited access to energy and use it less efficiently, since they do not master the latest technologies. States must retain their power to regulate this sector to ensure competition takes place in a fair environment within specified guidelines. Licenses must be issued through bidding or auctioned off, but in every case the State must ensure that commitments are met. It must also ensure that pricing is fair. Access for third parties to the power distribution system must be adequate, especially when the company operates in a monopoly environment. The State ends up managing a new category of risks (called major risks) that the private sector is not willing to consider, for example global warming or the management of nuclear waste. Confidence in market mechanisms is limited. Energy exchanges and others represent an economic growth factor and a potential guarantee for world peace. Who is responsible for the social costs associated with economic growth, and what are the solutions? A major issue left to decision-makers is the sharing of wealth within humankind and nations, and the State has a vital role to play. 5 refs., 5 tabs.

  5. Report of Activity, July 1995 - June 1997; Rapport d`activite Juillet 1995 - Juin 1997

    Energy Technology Data Exchange (ETDEWEB)

    Tamain, B [Lab. de Physique Corpusculaire, Caen Univ., 14 (France)

    1998-12-31

    The LPC (Laboratoire de Physique Corpusculaire) dedicated the major part of its 50 years activity to the Physics of Heavy Ions research conducted at GANIL. The activity in last two years on which this report is focused refers to this domain. Of special priority was the topics of hot and /or compressed nuclear matter aiming at understanding the physics of multifragmentation.The new ionization chambers INDRA and development of control programming required special efforts. A second direction of activity was the study of exotic nuclei particularly of halo nuclei. Specific equipment like the multi-detectors of DEMON and TAPS were designed for approaching the hot nuclei. Projects based on SPIRAL beams and collaborations dedicated to investigation of different new branches of exotic radioactivity ({beta}, xn: TONNERRE project) or mechanisms of induced fusion by radioactive nuclei to produce superheavy nuclei are reported on. The LPC was implied also in two important research programs, PRACEN and GEDEON (treatment of radioactive wastes) which made clear the evolution of research for the next two years: the correct understanding of the mechanisms of light particle production in neutron induced collisions at 20 to 200 MeV. In the frame of NEMO Collaboration that approaches topics related to the weak interactions the Laboratory has developed and tested the trigger system of NEMO3. A program utilizing ion trapping on SPIRAL for efficient studies on {beta}-neutrino angular correlations in superallowed decays will be thus feasible. Contracts like COGEMA and DAMRI oriented toward applied research are also mentioned

  6. Casa de Modele din Chişinău. Primii ani de activitate

    Directory of Open Access Journals (Sweden)

    Natalia Procop

    2016-10-01

    Full Text Available With the opening of the Union Fashion House (Moscow, similar institutions appear in major cultural centers of the USSR (Leningrad, Riga, Kiev, Lvov, Vilnius, Minsk, Tbilisi and others. According to the Order of the Council of Ministers of the Moldavian SSR of November 24, 1953, the latter assumed the responsibility to establish a Fashion House in Chisinau in 1954. The institution’s obligation was to offer aid to factories, to carry out controls on improving clothing models etc. The Fashion House from Chisinau developed rapidly. It participated in international competitions and the International Congress of Fashion. The institution had sewing workshops, where dresses, stage costumes etc. were made to order. Chisinau Fashion House was a genuine cultural centre for apparel, which influenced the aesthetic taste of the population, so that the development of the domains closely linked to the given institution.

  7. De nouvelles règles du jeu pour les activités commerciales | CRDI ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    28 janv. 2011 ... En effet, traiter avec les autorités suppose des quantités intimidantes de paperasse, des démarches multiples et des délais insupportablement longs à chacune des étapes du processus. À la lumière d'études ayant démontré que la croissance économique est plus forte lorsque les réglementations facilitent ...

  8. La réactivité des matériaux argileux sous gradient thermique

    OpenAIRE

    Kohler , Eric

    2005-01-01

    Directrice de thèse : Catherine Beaucaire CEA Saclay Président du jury: Daniel Tessier INRA Versailles Rapporteurs : Martine Buatier Université de Franche-Comté, Besançon Sabine Petit Université de Poitiers Examinateurs : Justo Cabrera IRSN Fontenay aux Roses Michel Jullien CEA Cadarache Sid Labdi Université d'Evry Val d'Essonne Joël Raynal CEA Cadarache; The argillaceous materials properties could be favourable to the radioelements confinement in high activity and thermogenic nuclear waste d...

  9. Activité féminine, prestations familiales et redistribution

    OpenAIRE

    Olivia Ekert

    1983-01-01

    Ekert Olivia. ? Women's Work, Family Allowances and Redistribution. The system of family allowances may be looked at from two different points of view : the contributions paid throughout working life, and the benefits received when there are dependant children. The aim of this study is to determine who are the net beneficiaries of the system. A balance sheet extending over the lifetime of couples classified by their completed family size and their social group is drawn up. A model is construc...

  10. La critique de cinéma comme activité rhétorique

    Directory of Open Access Journals (Sweden)

    Dominika Topa-Bryniarska

    2017-12-01

    Full Text Available Film review as a rhetorical activity The paper discusses the discursive construction of persuasiveness in media language. Analysing the corpus consisting of eighty reviews of two French comedies “Intouchables” (2011 and “Qu'est-ce qu'on a fait au Bon Dieu?” (2014, several invariant characteristics of the genre `film review' are established in the light of its deliberative dimension which consists in using various discursive strategies of persuasion submitted to the phatic function based on the principle of movere and delectare. Since the mentioned strategies assume that the discourse aims at influencing the addressees' will and decisions, they reflect some of the persuasive techniques used in advertising discourse, especially with regard to rhetorical means of interpretation, suggestion and evaluation such as colloquial expressions, questions, directive speech acts, collocative pronouns and generic quantifiers. Thus, the issues addressed in the study concern a set of parameters governing the attractiveness of the message in order to reinforce or weaken the recipient's attitude towards the presented object. These parameters stem from shared values and convictions exploring automatic mental triggers connected with the peripheral route of persuasive influence.   Recenzja filmowa jako działanie retoryczne Celem analizy jest przedstawienie dyskursywnego konstruowania perswazyjności w języku mediów. Na bazie korpusu składającego się z osiemdziesięciu recenzji dwóch francuskich komedii „Nietykalnych” (2011 i „Za jakie grzechy, dobry Boże?” (2014 omówiono kilka inwariantnych cech gatunku „recenzji filmowej”, przedstawionych w świetle jej deliberatywności, polegającej na użyciu różnorakich dyskursywnych strategii perswazyjnych, zależnych od fatycznej funkcji języka, działającej w oparciu o reguły movere i delectare. Ponieważ we wspomnianych strategiach zakłada się, że celem dyskursu jest wpływanie na wolę i decyzje odbiorcy, odzwierciedlają one niektóre z perswazyjnych technik dyskursu reklamowego, w szczególności te, które związane są z retorycznymi środkami interpretacji, sugestii i wartościowania jak wyrażenia potoczne, pytania, akty dyrektywne, zaimki kolektywne oraz kwantyfikatory ogólne. Z tego powodu, kwestie omawiane w niniejszej pracy dotyczą środków zawiadujących atrakcyjnością komunikatu, służącej wzmocnieniu lub osłabieniu opinii odbiorcy względem prezentowanego obiektu. Środki te wywodzą się z wartości i przekonań uznanych za wspólne, wykorzystując przy tym automatyczne psychologiczne mechanizmy, związane z argumentacją peryferyjnego toru perswazji.

  11. Nouvelles et activités | Page 6 | CRDI - Centre de recherches pour le ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Jean Lebel, président du CRDI, et Andrew Campbell, premier dirigeant de l'. CRDI. NOUVELLES ACTIVITÉS. Le CDRI renouvelle son partenariat avec ACIAR en matière de sécurité alimentaire. Le CRDI et le Australian Centre for International Agricultural Research, ont conclu un accord en... Vous voulez en savoir plus Le ...

  12. Progress report 1998 - 1999; Rapport d'activite 1998 - 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    This report reviews the activities of the laboratory for the years 1998 and 1999. Laboratory's activities are driven by an important international program on particle physics and astro-particles. 11 topics are presented: 1) physics at LHC: the ATLAS experiment, 2) the search for a new physics at LEP : DELPHI experiment, 3) DIRAC experiment, 4) neutrino oscillations: NOMAD experiment, 5) TONIC experiment, 6) the experiments H1 at HERA, 7) CP breaking: BABAR experiment, 8) DO experiment at the Tevatron, 9) high energy gamma radiation sources: CAT experiment, 10) supernova, and 11) the project of the AUGER observatory.

  13. Report of Activity, 1996 - 1997; Rapport d`activite 1996 - 1997

    Energy Technology Data Exchange (ETDEWEB)

    Augustin, Jean-Eudes [Inst. de Physique Nucleaire, Lyon-1 Univ., 69 - Villeurbanne (France)

    1998-12-31

    This report covers the activity developed in the Lyon Institute of Nuclear Physics in the years 1996-1997. The INP-Lyon is a mixed research unit, dependent on Lyon 1 Claude Bernard University, on one side, and on CNRS Institute of Nuclear and Particle Physics, on the other side. Its personnel of some 200 fellows is formed up of a half of researchers and undergraduate researchers, the other half being engineers, technicians and administration personnel. The principal activities in INP Lyon are the experimental research in sub-atomic physics as well as the training by research of the master and enrolled towards Ph D students. The main research problems concern the particle physics nuclear matter and the particle astrophysics as well as the works in theoretical physics, radioactive product management and the interactions ions/clusters - matter. The report contains the following chapters: Physics at LEP, Experiment preparation for LHC, Hadronic and Nuclear Matter, Astro-particles, Theoretical Physics, Ions/clusters - matter and physico-chemistry of the ion-matter interaction, Technical activities, Scientific life at INP -Lyon

  14. Étude ethnobotanique et évaluation in vitro de l'activité antifongique ...

    African Journals Online (AJOL)

    SARAH

    2016-02-29

    Feb 29, 2016 ... Torréfaction, pulvérisation. Cutané, rectale. 25 Scoparia dulcis L. Scrophulariaceae Gnongnon. GC - SZ H np. 1,75 Écorce,. Feuille pétrissage. Cutané, rectale. 26 Solanum verbascifolium. Linn. Solanaceae. Vi ahovi. GC. Arb mp. 1,75 Feuille pétrissage. Cutané, rectale. 27 Solenostemon monostachyus (P.

  15. Report of Activity, 1996 - 1997; Rapport d`activite 1996 - 1997

    Energy Technology Data Exchange (ETDEWEB)

    Augustin, Jean-Eudes [Inst. de Physique Nucleaire, Lyon-1 Univ., 69 - Villeurbanne (France)

    1999-12-31

    This report covers the activity developed in the Lyon Institute of Nuclear Physics in the years 1996-1997. The INP-Lyon is a mixed research unit, dependent on Lyon 1 Claude Bernard University, on one side, and on CNRS Institute of Nuclear and Particle Physics, on the other side. Its personnel of some 200 fellows is formed up of a half of researchers and undergraduate researchers, the other half being engineers, technicians and administration personnel. The principal activities in INP Lyon are the experimental research in sub-atomic physics as well as the training by research of the master and enrolled towards Ph D students. The main research problems concern the particle physics nuclear matter and the particle astrophysics as well as the works in theoretical physics, radioactive product management and the interactions ions/clusters - matter. The report contains the following chapters: Physics at LEP, Experiment preparation for LHC, Hadronic and Nuclear Matter, Astro-particles, Theoretical Physics, Ions/clusters - matter and physico-chemistry of the ion-matter interaction, Technical activities, Scientific life at INP -Lyon

  16. Joueuse de rugby de première division : une activité dangereuse ?

    OpenAIRE

    JONCHERAY , Hélène; Tlili , Haïfa

    2010-01-01

    International audience; This paper is about women’s rugby union and dangerousness, two themes which are oftenassociated. Indeed, when women say they play rugby a lot of people instantly think about danger. Theresearch is based upon 197 questionnaires filled out by rugbywomen who play in the french first division.If the analysis (using the Sphinx2 software) of some results does not encourage women to start playingrugby (75 % of the players said they had been injured), social explanations have ...

  17. Activité insecticide d'une souche marocaine de Bacillus ...

    African Journals Online (AJOL)

    endotoxines et β -exotoxines) extraites à partir d'une souche de Bacillus thuringiensis (Bt A9) isolée d'un sol au Maroc sur la mouche Ceratitis capitata Wied (Diptera ; Tephritidae). les endotoxines de Bt A9 agissent sur la mortalité des larves et la ...

  18. ANDRA. 2003 activity report; ANDRA. Rapport d'activite 2003

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-05-01

    This document includes both the activity report and the management and financial situation report of the French national agency for the management of radioactive wastes (ANDRA). Content: ANDRA's missions: 1 - the industrial mission (short-lived low- and medium-level wastes, a new disposal facility for the very low level wastes, wastes from diffuse nuclear origins); 2 - the research mission (methodology and approach, knowledge gained in 2003, the 2003 experimental program of the Meuse-Haute Marne underground laboratory, the three approaches applied to research, projects for radium- and graphite-bearing wastes, international relations); 3 - information mission (public expectations and specific answers, inventory mission). (J.S.)

  19. Nouvelles et activités | Page 4 | CRDI - Centre de recherches pour le ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Recherche pour un monde climato-intelligent. Lors d'une série de conférences présentées dans le cadre de déjeuners parlementaires, le Centre de recherches pour le développement international (CRDI) présentera les résultats atteints grâce au financement d'adaptation et de développement. Bulletin du CRDI — février ...

  20. IPSN activity report 1999; Rapport d'activite de l'IPSN 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    The ''Institut de Protection et de Surete Nucleaire'' (IPSN), carries out researches and expert studies needed to manage nuclear risks and their consequences on people and environment. These activities cover the installation safety, the radioactive matter transport, the public health and environmental control, the nuclear matters safety and control and the crisis situation management. The IPSN have got also a mission of public information and participates to international actions in the domain of scientific researches or expert's report. This annual report presents the highlights of the year 1999, information on staff, budgets and geographical situation. Then technical and scientific papers gathers the activities of the year covered by the IPSN: the ''Free Tribune'', installations and radioactive wastes safety, crisis and nuclear matter management, public health and environment control, international cooperation. (A.L.B.)

  1. [Geotechnical Board activities and funding]. [Annual] activites report, July 1, 1992--June 30, 1993

    Energy Technology Data Exchange (ETDEWEB)

    Smeallie, P.H.

    1993-07-23

    The Geotechnical Board, a part of the US National Research Council, which is the operating arm of the National Academy of Sciences and the National Academy of Engineering, serves to advise the federal government and others on issues where geotechnology can have an impact, such as environmental remediation and infrastructure development. The board met three times during the reporting period to review current projects and to initiate activities that move the knowledge base of geotechnology forward. The board operates with two long-standing national committees, the US National Committee for Rock Mechanics and the US National Committee on Tunneling Technology. It also conducts special studies at the request of the government. A list of attachments is given.

  2. Progress Report 1994-1995; Rapport d`Activite 1994-1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    This third volume of 1994 to 1995 activity report, of Nuclear Physics Institute (Orsay, France) gives a general overview of the research programs conducted in the fields of nuclear structure (exotic nuclei, discrete high spin states). Other topics have been studied in high excitation energy states and giant resonances, and in nucleus-nucleus collision and hot nuclei. Other topics deal with radiochemistry, in particular for optical spectroscopy and physico-chemical studies on actinides and trans-actinides. (D.L.). 340 refs.

  3. Application de la méthode de balayage d'activité de processus ...

    African Journals Online (AJOL)

    AKA Boko

    performances de la carrière de « Ben Azzouz » en optimisant le nombre de camions nécessaires et les délais de .... le transport de la roche vers le concasseur primaire, le concassage de la roche pour produire le granulat. ..... VARIABLE. MaxLoadedHoles (Maximum de trou pouvant être chargé) nHolesPerShot. VARIABLE.

  4. Gaz de France 2006 annual report; Gaz de France 2006 rapport d'activite

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    Gaz de France is major European energy utility, which produces, purchases, transports, distributes and sells natural gas, electricity and related services for its residential, corporate and local government customers. Its strategic focuses are to develop an ambitious marketing strategy, pursue a supply and procurement policy that guarantees the Group's competitiveness, confirm its position as a benchmark infrastructure manager, and speed up its profitable growth in Europe. Gaz de France aligns its strategy with a concrete and ambitious sustainable development policy. Its growth model is based on responsiveness to customers and constructive dialogue with its employees and partners. This document is the activity report of the group for the year 2006. It presents: 1 - the corporate profile of the group; 2 - its strategies (energy, energy supply, infrastructures); 3 - its financial highlights; 4 - its governance, shareholders and human resources; 5 - the activities of the group (exploration and production, energy procurement, energy sales, services, transmission France, storage France, LNG terminals, distribution France, transmission and distribution international, research and development); 6 - its 2006 financial data and financial summary.

  5. Progress report, July 1999 - June 2001; Rapport d'activite juillet 1999 - juin 2001

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    This report presents the different research programs that have been performed in the Laboratory of Corpuscular Physics (LPC). The activities and achievements have been parted under 9 headings: 1) mechanisms of production and decay of hot nuclei; 2) exotic nuclei; 3) production and properties of super-heavy nuclei; 4) theoretical physics; 5) basic interactions; 6) management of radioactive wastes (Gedeon program); 7) technical assistance, engineering, hardware; and 8) teaching and training.

  6. ANDRA, 2006 activity report; ANDRA, Rapport d'activite 2006

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    The French national agency of radioactive waste management (ANDRA) was marked in 2006 by two outstanding events: the publication of the national inventory of radioactive wastes and valorisable materials, and the vote of the law from June 28, 2006 relative to the sustainable management of radioactive wastes and materials. This road-map law has an impact on ANDRA's activities for the coming years. This activity report presents several 2006 highlights of ANDRA's missions as well: the public service mission, the by-law about the effluents of the Aube plant for the storage of low-medium activity wastes, the building of the first 'double-cell' at the very-low activity waste storage plant of Aube, the research studies about the project of deep underground disposal of high-medium activity, long-living wastes, and the public information about ANDRA's technical and scientific know-how. The management and financial reports are attached in appendix. (J.S.)

  7. Anti-t B toxopla Balsam asma g mocitru gondii us cam activit merune ...

    African Journals Online (AJOL)

    SAM

    and for fever, dyspepsia, cholera, Carminative and stomachic ... system diseases (Lewis and Elin-Lewis, 1977; Metou et al., 1988 ... yielded a yellow-brown residue (31.5 g). A part (30 g) ..... Surveillance for AIDS-defining opportunistic illnesses ...

  8. Progress Report 1994-1995; Rapport d`Activite 1994-1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    This second volume of 1994 to 1995 activity report, of Nuclear Physics Institute (Orsay, France) gives a general overview of the research programs conducted in the fields of accelerators, detectors, multi channel data acquisition systems. The main topics are: tandem electrons accelerators, beam shaping, targets, control electronics, strip detection chambers, data acquisition electronics, and data acquisition software. (D.L.).

  9. Report of Activity, 1996 - 1997. Vol.2; Rapport d`activite 1996 - 1997. Vol.2

    Energy Technology Data Exchange (ETDEWEB)

    Ouvry, Stephane [Inst. de Physique Nucleaire, Paris-11 Univ., 91 - Orsay (France)

    1999-10-01

    This report covers the activity developed in the Division of Theoretical Physics of the Orsay Institute of Nuclear Physics during 1996-1997. Summary reports and short communications are grouped in the following sections: 1. Statistical Physics (37 papers); 2. Nuclear Physics (22 papers); 3. Field and Particles (25 papers); 4. Mathematical Physics (3 papers). The report is completed with a list of publications, seminars, conferences, as well as external/internal reports, lectures and theses. In the field of nuclear physics the research has been focussed on superdeformed nuclei, high spin states, far-off-stability nuclei, high excitation energy levels and nuclear matter thermodynamics. These subjects were often associated to the experimental research developed in the frame of large experimental programs as EUROGAM, SPIRAL, EDEN, INDRA, etc in which IN2P3 is currently participating. In the field of Field Theory and Particle Physics the studies were related to non-perturbative aspects of the quantum field theory, on one side and to quantum chromodynamics, through the phenomenological analyses of the hadron structure and interactions, on the other side

  10. Activity report 1998-1999; Rapport d'activite 1998-1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    The aim of this report is to outline the main developments of the ''Departement d'Ecophysiologie Vegetale et de Microbiologie'', (DEVM) during the period 1998-1999. DEVM is one of the Department of the CEA Institution. This report presents the activities of the laboratories of the department. Among these laboratories, two laboratories have applications of radiation: the laboratory of vegetal radiobiology and the laboratory of research on food quality. The research programs on radiation effects on living organisms and regulation of food or drug radiation process, respectively for the two laboratories, are discussed. (A.L.B.)

  11. Report of Activity, 1996-1997-1998; Rapport d'activite 1996-1997-1998

    Energy Technology Data Exchange (ETDEWEB)

    Bizot, J.C. [ed.] [Lab. de l' Accelerateur Lineaire, Paris-11 Univ., 91 - Orsay (France)

    1999-07-01

    This report describes the activity of Linear Accelerator Laboratory at Orsay on 1996, 1997, and 1998. The physics research is focused onto three issues. The first has as objective the precise test of standard model in the sector of gauge boson interactions at LEP (ALEPH, DELPHI) and HERA (H1) and in the sector of matter properties (tau lepton, b quark, CP violation and neutrino mass). The second is a search for high energy new particles, particularly the Higgs boson and the particles predicted by supersymmetry. Finally, there is an astrophysics program aiming at gravitational wave detection and precise measurement of the relic background radiation by gravitational lensing and of high energy photon showers. The LAL plays a foremost role in the construction of the large experiments ATLAS, NEMO, VIRGO (especially mechanics) and BABAR and LHCb (electronics). The computing sector entered a new phase of critical mutations (relating to new tools and languages). Reported are also the LAL contributions to the TTF injector, the test station installed at Hamburg for the future superconductor e{sup +}e{sup -} collider TESLA and the effort in superconductor accelerator R and D of the DAPNIA-IN2P3 French collaboration. An illustration of the LAL efforts for developing applications is the electron beam project ELYSE designed for chemical utilizations, based on the experience with the photon triggered gun CANDELA.

  12. ONERA. 1997 scientific and technical activities; ONERA. Activites scientifiques et techniques 1997

    Energy Technology Data Exchange (ETDEWEB)

    Vuillot, F.; Lupoglazoff, N.; Dupays, J.; Basset, Th.; Daniel, E. [Universite de Provence, 13 - Marseille (France); Devincre, B.; Veyssiere, P.; Kubin, L.; Saada, G. [ONERA, CNRS,LEM (France); Hertl, M.; Dorval, N.; Jolly, J. [ONERA-CNRS, Laboratoire Plasmas Reactifs en Interactions avec les Materiaux (France); Thierry, G.; Guillen, Ph.; Prieur, J.; Lewy, S.; Nastasi, V.; Lerat, A.; Sides, J.; Gely, D.; Chanetz, B.; Pot, T.; Jacquin, L.; Geffroy, P.; Merienne, M.C.; Mebarki, Y.; Reijasse, P.; Corbel, B.; Reijasse, P.; Murer, Y.; Millan, P.; Pauzin, S.; Reulet, P.; Coustols, E.; Sauvage, Ph.; Bissieres, D.; Estivalezes, J.L.; Lavergne, G.; Casalis, G.; Troff, B.; Thivet, F.; Moschetta, J.M.; Deniau, H.; Grondin, G.; Grenon, R.; Bettschart, N.; Gardarein, P.; Moens, F.; Costes, M.; Gaveriaux, R.; Flodrops, J.P.; Paquet, J.B.; Leplat, M.; Sgarzi, O.; Zamuner, B.; Moreau, P.; Collin, G.; Magre, P.; Duterque, J.; Hommel, J.; Masson, C.; Forconi, H.; Fradin, C.; Roehle, I.; Hervat, P.; Soucail, M.; Octor, H.; Marty, M.; Dorvaux, J.M.; Lavigne, O.; Mevrel, R.; Poulain, M.; Lapasset, G.; Morel, A.; Naka, S.; Sanchez, C.; Thomas, M.; Krapez, J.C.; Lepoutre, F.; Balageas, D.; Chaboche, J.L.; Jung, O.; Deletombe, E.; Malherbe, B.; Ousset, Y.; Sudre, O.; Parlier, M.; Guichet, B.; Bretheau, T.; Kruch, S.; Vassel, A.; Boust, F.; Flavin, E.; Petot, D.; Rapin, M.; Morvan, A.; Lebihan, D.; Petitjean, B.; Leconte, P.; Grisval, J.P.; Sauvignet, C.; Johan, Z.; Loiseau, A.; Lesturgie, M.; Martineau, P.; Titin-Schnaider, C.; Vieillard, G.; Dreuillet, P.; Castelli, J.C.; Lacour, D.; Ferriere, X.; Bonnet, P.; Gobin, V.; Alliot, J.C.; Grisch, F.; Labrune, L.; Larigaldie, S.; Ory, M.; Lalande, P.; Bondiou-Clegerie, A.; Kayser, P.; Deyrac, F.; Le Traon, O.; Besson, C.; Serrot, G.; Bodilis, M.; Duffaut, J.; Conan, J.M.; Mugnier, L.; Michau, V.; Fusco, T.; Madec, P.Y.; Rousset, G.; Simoneau, P.; Barillot, Ph.; Dolfi, A.; Robineau, J.; Mugnier, L.; Cassaing, F.; Rousset, G.; and others

    1997-12-31

    The ONERA is the first French research office in the aerospace domain. This annual report summarizes the main research studies carried out by the different ONERA departments in 1997 in the domains of fluid mechanics and energetics (numerical simulation, aero-acoustics, aerodynamics, propellants, propulsion systems), materials and structures (metals and processes, solid mechanics, material testing, composite materials and systems, structure dynamics, microstructures), physics (space environment, electromagnetism and radars, physical measurements, optics), data processing and systems, and technical means. (J.S.)

  13. 1998-1999 progress report; Rapport d'activite 1998-1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    This report presents the activities of the ISNG (Grenoble Nuclear Sciences Institute) for the period 1998-1999. This presentation is made up of 7 chapters: (1) quarks and leptons, (2) neutrinos and astro-particles, (3) hadron physics, (4) hybrid reactors and nuclear matter, (5) theoretical physics, (6) instrumentation and technical services, and (7) formation and published work. In the framework of Muse experiments, a pulsed neutron generator of very high intensity has been built in order to realize the first test hybrid reactor. (A.C.)

  14. activit secondaire* du programme acca la cdp 12, cdp/rdp 2

    International Development Research Centre (IDRC) Digital Library (Canada)

    freelance

    5.3. But et objectifs spécifiques de la stratégie de Partage des Risques ... EEEAO : Echange d'Energie Electrique en Afrique de l'Ouest. FAO: Food and Agriculture ...... 95 000 pour son noyau central) sur les deux rives du Delta du fleuve.

  15. Anti-t B toxopla Balsam asma g mocitru gondii us cam activit merune ...

    African Journals Online (AJOL)

    SAM

    s in humans igate intracel .... infertility, and influenza (Tsassi et al., 2010; Asase et al.,. 2005). .... Human foreskin fibroblasts (HFF) cells were infected by tachyzoites of T. gondii .... Prophylaxis against opportunistic infections in patients with ...

  16. RTE activity report 2005; RTE rapport d'activite 2005

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    The RTE (electric power transport network) is the french manger of the electric power transport. This activity report provides information on the company results for the year 2005: panorama of the year, management and organization, the place of RTE in the european market, the customers, the industrial tool, the environment the human resources, the international activity and the management report. (A.L.B.)

  17. Progress report I.R.S.N. 2002; Rapport d'activite IRSN 2002

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    This progress report is divided in three parts. The first one explains the missions of I.R.S.N. and its organisation. The second part concerns the activities: to protect man and environment, contribution to the safety of installations and transports, to look after the non proliferation, to be a driving force in the international relations, to contribute to the information and training. The third part is relative to the quality and means of the development, to continue the quality objectives, the human resources and social relations, the budget in 2002. (N.C.)

  18. Evaluation de l\\'activité insecticide de deux plantes Hyptis ...

    African Journals Online (AJOL)

    Une stratégie de protection de la culture de niébé par les biopesticides a été testée avec les extraits aqueux d\\'Hyptis suaveolens (Linn.) et de Khaya senegalensis (A. Juss), issus de matériels végétaux conservés pendant un an, trois mois ou un jour à 5°C. Les ravageurs ciblés sont Aphis craccivora Koch, Megalurothrips ...

  19. Progress report 1998/1999; Rapport d'activite 1998/1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    Among the significant technological achievements of 1998-99, we will note in particular the manufacture of a lower hybrid antenna. This has large size and is shielded from the plasma by side protection incorporating the same technology that is used in the limiter of the CIEL project. This antenna was tested successfully in the autumn 1999; its capacity is 4 MW steady state. Substantial progress was achieved in testing the 118 GHz gyrotrons that are intended to deliver 400 kW with a pulse length of 210 seconds. Pulses lasting some 15.5 seconds were obtained on load during the summer 1999 and were limited only by the performance of the load and by out-gassing. At these pulse lengths, the parameters of the tube are already quasi-stationary. The tests will begin again in the Spring of 2000 with a more suitable load. The very first tests on plasma took place in the Autumn of 1999 showing a strong absorption of the waves by the plasma. Work in the field of the high frequency heating systems focused on problems of local power deposition close to the antenna. This problem is exacerbated, both at the lower hybrid and at the ion cyclotron frequencies, by the need to carry out long pulse discharges. Modelling the localised effects that have been observed contributes to the evolution of the design of both types of antenna and holds out the prospect of fully-validated solutions for the 'next step'. Using the technology developed for the CIEL project in the field of the high heat flux components also made it possible to implement side protections for the antennas that can withstand the temperature rise related to these local effects. Studies in various modes of heating or current drive were continued, in order to explore the corresponding scenarios but also to make progress in modelling the phenomena of wave propagation and absorption. In the field of ion cyclotron waves, the implementation of {sup 3}He minority heating made it possible to identify the conversion of the fast wave into a Bernstein wave. The scenario of coupling the fast wave to the electrons was also studied from the point of view of scenarios relevant to the conditions of the 'CIEL' project. In the field of the lower hybrid waves, we will note in particular the use of the hard X-ray cameras to observe the spatial and energy distribution of the fast electrons, coupled with the observation of the electron cyclotron radiation. This made it possible to carry out fine observations related to the absorption of the hybrid waves. In particular, the reality of the transition to the LHEP mode and the improvement of confinement which it represents, were clearly established. The DRFC carried out a certain number of studies relating to confinement in various modes of plasma. A good confinement mode was obtained with high density and ion cyclotron minority heating. This mode, which brings to mind certain aspects of the 'Enhanced Radiation' mode, developed by the physicists of TEXTOR, has performance equivalent to the 'Elmy-H' mode, foreseen as the basis for ITER. An active programme of research is underway to elucidate the reasons for this good confinement. In particular, the respective roles played by magnetic shear and rotational shear in the stabilisation of turbulence are being studied. (author)

  20. Progress report 2001-2002; Rapport d'activite 2001-2002

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    The document reviews the activities of the linear accelerator laboratory (LAL) for the years 2001 and 2002. Most part of these activities are active collaborations in international programs. Some experimental programs like Aleph (apparatus for Lep physics) and Delphi (detector with lepton, photon, and hadron identification) at the Lep (CERN) or Na48 (search for direct violation of the CP invariance) have entered their last stage. Others like H1 (electron-positron experiment at Hera), Babar (measurement of CP violation in the B{sup 0}B-bar{sup 0} system) at Slac (Stanford), or D0 (search for new particles at the Tevatron) at Fermilab, are fully operating and this document describes the contribution of the LAL for each of them. The preparation of experiments for the future LHC has represented the core of LAL's technical activities. This document reviews these activities and achievements for the Atlas (air toroid LHC apparatus system) and LHCB (large hadron collider beauty) experiments. The LAL is also involved in the definition of the future high energy linear electron-positron collider (FLC). The LAL contributes to some experiments of neutrino physics through Nemo (violation of the lepton charge) and Opera (neutrino oscillations) experiments and to various astro-particles experiments such as Eros (micro-lensing effect), Archeops and Planck (cosmology), Virgo (gravitation waves) and Auger (very high energy particles showers). Another important part of LAL's activities is teaching activity mainly inside the curriculum of Paris-sud university. (A.C.)

  1. Progress report 2000 / 2001; Rapport d'activite 2000 / 2001

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    The 2000-2001 period has seen many facts of importance for the EURATOM-Cea association. The first outstanding fact is the positive evolution of the ITER project because of both the willingness of the partners and the French proposition to the European Union to consider the Cadarache site as the European site. The second outstanding fact is both the installation on Tore-Supra of a new generation of plasma-facing component: the Ciel project and the launch of the Cimes project whose aim is to allow Tore-Supra to reach discharge up to 1000 s. The third outstanding fact is the continuation of experiments in Jet after 1999, end date of the Jet Joint Undertaking. These new provisions aim at maintaining in activity the spearhead of the European program, waiting for a clarification of the ITER situation. Among the results obtained in Jet operations, we can quote those having a direct influence on the ITER performances: - the beneficial effect of a high triangularity on the ELM (edge localized modes) and on the confinement factor at high density, - the real time control of advanced tokamak discharges at quasi steady state, and the theoretical explanation of the current hole (in lower hybrid advanced scenarios, a region with vanishing current density that appears in the plasma centre). (A.C.)

  2. Monooxygenase activitity in Aedes aegypti population in Tembalang subdistrict, Semarang city

    Directory of Open Access Journals (Sweden)

    Dyah Widiastuti

    2015-06-01

    Full Text Available Dengue Haemorrhagic Fever (DHF is a major health problem in Tembalang sub district, Semarang City. Fogging with insecticide applications was done frequently as an effort to control Dengue vectors. The use of insecticides from the same class in a long time can lead to resistance in mosquitos’ population. The research aimed to observe the activity of monooxygenases in Aedes aegypti populations in Tembalang Subdistrict, Semarang. The study was conducted during February-November 2014 with a cross-sectional design in 10 villages in Tembalang Subdistirict, Semarang City. Field strains of Ae. aegypti eggs were collected using ovitraps. The collected eggs were grown under standard condition to adult mosquitoes. Mosquitos’ homogenate were stored at -85C and used for biochemical assays. The results showed there was increased monooxygenases activity in Ae. aegypti populations. Resistance to synthetic pyrethroid insecticide in Ae. aegypti mosquitoes population in Tembalang Subdistrict might be caused by the mechanism of detoxification enzymes in particular monooxygenases

  3. Progress report 1996 - 1997; Rapport d'activite 1996 - 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    This document reviews all the activities of the ISN (nuclear sciences institute in Grenoble) for 2 years. ISN's teams contribute to many international programs like ATLAS, DELPHI, GRAAL... 43 topics or important results are presented gathered into 6 themes: 1) quarks and leptons - astro-particles, 2) hadron physics, 3) nuclear matter and innovative concepts for nuclear energy, 4) theoretical physics, 5) technology transfer and valorization, and 6) instrumentation.

  4. Soutien des activités de recherche par le truchement de l'Initiative ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Le premier projet visant l'amélioration de la capacité d'influencer les politiques a été ... Une séance de formation sur les médias à l'intention des jeunes chercheurs ... long-term climate action to reduce social inequality, promote greater gender ...

  5. Progress Report 1994-1995; Rapport d`Activite 1994-1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    This third volume of 1994 to 1995 activity report, of Nuclear Physics Institute (Orsay, France) gives a general overview of the research programs conducted in the fields of nuclear structure (exotic nuclei, discrete high spin states). Other topics have been studied in high excitation energy states and giant resonances, and in nucleus-nucleus collision and hot nuclei. Other topics deal with radiochemistry, in particular for optical spectroscopy and physico-chemical studies on actinides and trans-actinides. (D.L.). 340 refs.

  6. Powernext 2005 activity assessment; Powernext bilan d'activite 2005

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-07-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO{sub 2} exchange markets. This activity report presents the highlights of the market and of Powernext in 2005: market conditions (birth of the carbon market, price evolution on the power market), weather-related conditions, electricity production and consumption, situation at the borders, price of fuels, traded volumes at the three markets (Powernext Day-Ahead{sup TM} in the case of day-ahead contracts, Powernext Futures{sup TM} in the case of medium-term contracts, and Powernext Carbon in the case of CO{sub 2}), new active members, liquidity on the power market. (J.S.)

  7. Impact de l'activité anthropique sur la dégradation de l ...

    African Journals Online (AJOL)

    Mots clés : El Kala - IPO - Diagramme de Piper - Impact anthropique – Piézométrie. Abstract ..... quelques recommandations afin de participer à la protection du parc ... hydrochimique de quelques hydro systèmes de la Numidie. (Régions d'El ...

  8. IPSN's 2001 activity report; Rapport d'activite 2001 de l'IPSN

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    This report summarizes the 2001 activities and operation of the French institute of nuclear protection and safety (IPSN) which has become the institute of radioprotection and nuclear safety (IRSN) after its merging with the office of protection against ionizing radiations (OPRI). IPSN's activities cover: the safety of nuclear facilities, the safety of nuclear wastes, the management of emergencies, the management of sensible materials, the protection of the environment and of the public health, some research activities with foreign partners (central and eastern Europe, Asia..), and a partnership with the GRS, the German homologue of IPSN. (J.S.)

  9. Annual review 2000-2001; Rapport d'activite 2000-2001

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-07-01

    This report reviews the activities of the LAPP (particle physics laboratory of Annecy-le-Vieux) for the years 2000-2001. The central themes of research are: 1) the standard model and its extension, 2) the study of CP violation (contribution to the experiments BABAR and LHCb), 3) the search for the Higgs'boson (contribution to the experiments ALEPH, L3, ATLAS and CMS), 4) physics of neutrinos (contribution to the experiments NOMAD and OPERA), 5) the study of anti-matter and cosmic radiation (contribution to the experiment AMS and to the project EUSO embarked on the international spatial station), and 6) the search for gravitational waves (contribution to the experiment VIRGO)

  10. Concentration and Storage of Highly-Active Wastes from the First Stages of the United Kingdom Civil Nuclear Power Programme; Concentration et Stockage des Dechets de Haute Activite au Cours des Premiers Stades du Programme Civil de Production d'Energie d'Origine Nucleaire au Royaume-UNL; КОНЦЕНТРИРОВАНИЕ И ХРАНЕНИЕ ВЫСОКОАКТИВНЫХ ОТХОДОВ НА ПЕРВЫХ СТАДИЯХ ОСУЩЕСТВЛЕНИЯ ПРОГРАММЫ СОЕДИНЕННОГО КОРОЛЕВСТВА ПО ПРОИЗВОДСТВУ ЯДЕPHОЙ ЭЛЕКТРОЭНЕРГИИ ДЛЯ ГРАЖДАНСКИХ ЦЕЛЕЙ; Concentracion y Almacenamiento de Desechos de Elevada Radiactividad en las Primeras Etapas del Programa Civil de Energia Nucleoelectrica del Reino Unido

    Energy Technology Data Exchange (ETDEWEB)

    Clelland, D. W. [United Kingdom Atomic Energy Authority, Production Group, Risley, Warrington (United Kingdom)

    1963-02-15

    The general problems of highly-active waste disposal are discussed and in particular the United Kingdom system of concentrating and storing highly-active waste as an acidic liquid concentrate is described. A speculative estimate is made of the amount of highly- active waste which will arise from reprocessing during the first two decades of the United Kingdom Civil Nuclear Power Programme and engineering design and technical problems associated with the safe and economic confinement of this material are examined. (author) [French] L'auteur analyse les problemes generaux que pose l'elimination des dechets de- haute activite; il decrit plus particulierement la methode appliquee au Royaume-Uni pour concentrer et stocker des dechets de haute activite sous forme d'un liquide concentre acide. U evalue la quantite des dechets de haute activite qui seront produits au cours du traitement de combustibles irradies pendant les deux premieres deconnies du programme civil de production d'energie d'orgine nucleaire et il examine les problemes techniques que pose l'isolement economique et sur de ces substances. (author) [Spanish] El autor examina los problemas generales de la evacuacion de desechos de elevada radiactividad y, en particular, el procedimiento que se aplica en el Reino Unido para concentrar y almacenar desechos muy radiactivos en forma de concentrados liquidos de reaccion acida. Efectua un calculo aproximado de la cantidad de desechos de elevada radiactividad que se orginaran en las operaciones de regeneracion de combustibles durante las dos primeras decadas de ejecucion del programa civil de energia nucleoelectrica en el Reino Unido y analiza los problemas tecnicos y constructivos relacionados con el confinamiento seguro y economico de estas sustancias. (author) [Russian] Obsuzhdajutsja obshhie problemy udalenija radioaktivnyh othodov vysokoj aktivnosti i, v chastnosti, prinjatyj v Soedinennom Korolevstve metod koncentrirovanija i hranenija takih othodov v vide

  11. Method of obtaining concentrated preparations of Cl{sup 36} and Br{sup 82} by recoil nuclei under exposure to high-density neutron fields; Preparation de composes du chlore-36 et du brome-82 de haute activite specifique, par exposition de noyaux de recul a des champs neutroniques intenses; Poluchenie kontsentrirovannykh preparatov Cl{sup 36} i Br{sup 82} metodom yader otdachi pri obluchenii v nejtronnykh polyakh vysokoj plotnosti; Obtencion de compuestos de cloro-36 y de bromo-82 de alta actividad especifica por retroceso de nucleos en campos neutronicos intensos

    Energy Technology Data Exchange (ETDEWEB)

    Kurchatova, L N; Kurchatov, B V

    1962-01-15

    ambiante, seuls des reducteurs puissants (CrSO{sub 4} en solution, par exemple) separent le chlore lentement du compose chlore-carbone active. L'enrichissement du brome en isotope {sup 82}Br, au moyen des composes brome carbone indiques, est de 50 a 500 pour des flux integraux de l'ordre de 5.10{sup 17} n/cm{sup 2}. L'activite specifique du concentre, qui varie entre 6 et 35 mc/mg de brome, peut sans doute etre augmentee par une amelioration de la methode. La structure du compose assure une bonne extraction du brome radioactif (jusqu'a 75%) par une methode tres simple. Pour l'obtention d'un concentre de chlore-36, le systeme suivant semble etre le plus efficace : carbone + chlorure de fer + chlore. Ce systeme a permis d'obtenir un taux d'enrichissement de 6 a 20 pour un concentre ayant une activite specifique de 230-55 {mu}c/g de chlore. L'effet de concentration qui s'obtient lorsque les composes susmentionnes du chlore et du brome sont irradies par des neutrons ont le resultat cumulatif de toute une serie d'operations: formation d'atomes de chlore radioactifs, separation radiolytique des halogenures, diffusion des produits obtenus dans le reseau du carbone, sorption de ces produits a la surface et reoombinaison en divers centres. De multiples facteurs - structure ultramicroscopique; nature des nouveaux composes, qui relevent du type des composes superficiels; presence a la surface du carbone de centres comportant un spectre ininterrompu d'energie de sorption ; formation probable, par l'irradiation du carbone, de divers centres de recombinaison immobiles, etc. - determinent l'extraordinaire variete des conditions de formation et de l'interaction entre les produits de l'irradiation et le squelette du carbone et sa surface. C'est pourquoi les systemes utilises donnent la possibilite de faire varier les essais dans une large mesure pour determiner les conditions d'enrichissement optima. (author) [Spanish] El metodo clasico de Szilard-Chalmers para obtener preparados

  12. Hanford High-Level Waste Management; Gestion des Dechets de Haute Activite a Hanford; 041e 0411 0420 0410 0411 041e 0422 041a 0410 0412 042b 0421 041e 041a 041e 0420 0410 0414 0418 041e 0410 041a 0422 0418 0412 041d 042b 0425 041e 0422 0425 041e 0414 041e 0412 0412 0425 042d 041d 0424 041e 0420 0414 0415 ; Tratamiento y Evacuacion de Desechos de Elevada Radiactividad en Hanford

    Energy Technology Data Exchange (ETDEWEB)

    Tomlinson, R. E. [Hanford Laboratories, General Electric Co., Richland, WA (United States)

    1963-02-15

    During the 17-year history of Hanford operations, a high degree of safety has been provided at reasonable cost by storing high-level radiochemical wastes as alkaline slurries in underground tanks. Since this operation has been regarded as an interim measure only, a programme is being developed to decrease the mobility of the stored materials in order to achieve an increased assurance of continued containment of the stored materials. As currently visualized the large volumes of essentially non-heating dejacketing wastes will be evaporated to salt cakes in existing underground tanks. Laboratory studies and prototype operation in a 5000-gal tank indicate that the passage of heated air through the solution can remove enough water that, with controlled carbonation to convert free caustic to sodium carbonate, a non-hydroscopic salt cake can be formed. The self-heating wastes will be fractionized to permit the separate storage of the long-lived heat emitters in small volume, high-integrity containers. These materials could be made available for beneficial use on request. After 5 to 10 years decay of the short-lived heat emitters, the residual salt wastes will be combined with current dejacketing wastes and evaporated to salt cakes. Assuming the concurrence of the United States Atomic Energy Commission an obsolete canyon-type building will be reactivated and revised to conduct the chemical processing operations required. Solvent extraction (D2EHPA) will probably be used to isolate strontium and cerium from acid waste. A choice has not yet been made between solvent extraction, ion exchange and precipitation for caesium isolation. The integrated operation is anticipated to be in operation about 1966. (author) [French] Pedant les dix-sept annees de fonctionnement des installations de Hanford, on a obtenu un degre de securite eleve a un cout raisonnable en stockant les dechets radiochimiques de haute activite, sous forme de boues alcalines, dans des reservoirs souterrains

  13. Long-lived high and intermediate level radioactive wastes: defining the context, stakes and perspectives; Dechets radioactifs de haute activite et de moyenne activite a vie longue: situer le contexte, les enjeux et les perspectives

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    The French law from December 30, 1991 has defined an ambitious 15 years program of researches in order to explore the different possible paths for the long-term management of long-lived high and intermediate level radioactive wastes. The law foresees also that at the end of the 15 years research program, a project of law will be prepared by the French government and transmitted to the European parliament in 2006. A public debate has been organized and emceed in 2005 in order dialogue with the general public and to gather its questions, remarks and fears. In the framework of their contribution to this debate, the ministries of industry and environment have prepared this document which answers some key questions about radioactive waste management: where do wastes come from, what are the risks, how are they managed today in France and in foreign countries, what are the results of the researches carried out during 15 years, what are the advantages and drawbacks of each waste management solution considered, what is the perspective of application of each solution, what is the position of experts, what will be the decision process. This synthetic document supplies some reference marks to better understand these different points. Some pedagogical files about radioactivity, fuel cycle, and nuclear industry activities are attached to the document. (J.S.)

  14. Activité antérieure – Quelles sont les perspectives d'avenir pour les ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 avr. 2016 ... Une table ronde sur l'industrie du vêtement en Asie s'est tenue le 26 mars 2015 à Phnom Penh, au Cambodge. Elle était organisée par le Cambodia Development Resource Institute (CDRI) et commanditée par le CRDI. Plus de 45 intervenants de l'industrie du vêtement ont participé à cet événement, ...

  15. Activité antérieure – Leadership en évaluation au Moyen-Orient et ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 avr. 2016 ... Le réseau d'évaluation de la région MOAN (EvalMENA) a tenu son assemblée générale au Caire du 23 au 26 février 2015 soulignant ainsi le début de l'Année internationale de l'évaluation. Fondé en 2011 grâce à du financement du CRDI, EvalMENA favorise la pratique professionnelle de suivi et ...

  16. A.C.R.O. activity report 2003; A.C.R.O. rapport d'activite 2003

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    A.C.R.O. (Association pour le Controle de la Radioactivite dans l'Ouest) is a French non governmental organisation that operates a laboratory for radioactivity analysis. It was created in 1986 as a response to people demands for information and reliable, independent testing. The organisation mainly carries out missions of information and training for its correspondents and more generally for a wide audience, particularly for people who worry about problems of environment, health, management of radioactive waste and emissions. Thanks to its structure, it enables citizens to involve themselves together with scientists so as to gain access to information that was hither to reserved to specialists. The organisation can vouchsafe its independence from the diversity of its members and volunteers, as well as from the diversity of its money resources. Besides its headquarters situated on the city of Caen area (Normandy), three branches situated in North Normandy, in Touraine and North Cotentin enable A.C.R.O. to assert its presence in the west of the French country. The association is run by a 30-plus team of volunteers and employees, structured in four committees : science, information, secretarial offices and management. Certified for the Protection of the Environment, the association was granted a technical qualification certificate for its testing and measurement activities by the French Health Authorities, according to decree n. 88 715 of May 9, 1988. In connection with all the human and technical know-how that it has links up over the years, the A.C.R.O. has developed such expertise as has made it an essential player in public debate; it has also led it to take part in numerous work groups and official committees and improve the public information through the regular publication of 'the nuclear chronicle'. Several actions are to be noticed: Radio ecological follow through of the aquatic environment both continental and marine of the sea-coast of Normandy from 2001 to 2003; Radio ecological monitoring of the environment of the Cogema la Hague building site in the Moulinets cove;Inventory of the radioactivity of the catchment area and the Brest Harbour (achieved in march 2003); Radiological measures of the earthly environment of the establishment of the G.I.P. CYCERON in Caen year 2003; Radiological characterization of D.I.S. and technical aid in relation to the directive 96/29 EURATOM. (N.C.)

  17. Activité antérieure – « From factory floor to the middle class: Does ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    La 48e réunion annuelle de la Banque asiatique de développement (BAD) a eu lieu du 2 au 5 décembre 2015 en Azerbaïdjan. Le CRDI a parrainé un séminaire sur la promotion des politiques de production génératrices d'emplois comme stratégie de croissance et de création d'emplois en Asie du Sud.

  18. Activité biologique d'un agoniste non stéroïdien de l'hormone de ...

    African Journals Online (AJOL)

    Tenebrio molitor. Phytoparasitica., Vol. 34 (2), 2006, p. 187-196. [12] H. Berghiche, G. Smagghe, S. Van. De Velde, N. Soltani, In vitro cultures of pupal integumental explants to bioassay insect growth regulators with ecdysteroid activity for ecdysteroid amounts and cuticle secretion. African Journal of. Agricultural Research.

  19. Activité antérieure – Bâtir un avenir solide pour la recherche sur la ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Amérique du Nord et de l'Europe pour inclure maintenant un plus grand nombre d'établissements de recherche africains. Des chercheurs africains mènent les initiatives. En poste dans des villes au coeur de l'épidémie, ...

  20. Determination of total phenolic content and antioxidant activitity of methanol extract of Maranta arundinacea L fresh leaf and tuber

    Science.gov (United States)

    Kusbandari, A.; Susanti, H.

    2017-11-01

    Maranta arundinacea L is one of herbaceous plants in Indonesia which have flavonoid content. Flavonoids has antioxidants activity by inhibition of free radical oxidation reactions. The study aims were to determination total phenolic content and antioxidant activity of methanol extract of fresh leaf and tuber of M. arundinacea L by UV-Vis spectrophotometer. The methanol extracts were obtained with maceration and remaseration method of fresh leaves and tubers. The total phenolic content was assayed with visible spectrophotometric using Folin Ciocalteau reagent. The antioxidant activity was assayed with 1,1-diphenyl-2-picrilhidrazil (DPPH) compared to gallic acid. The results showed that methanol extract of tuber and fresh leaf of M. arundinacea L contained phenolic compound with total phenolic content (TPC) in fresh tuber of 3.881±0.064 (% GAE) and fresh leaf is 6.518±0.163 (% b/b GAE). IC50 value from fresh tuber is 1.780±0.0005 μg/mL and IC50 fresh leaf values of 0.274±0.0004 μg/mL while the standard gallic acid is IC50 of 0.640±0.0002 μg/mL.

  1. Activities report for 1993-1994; Centre de Recherches Nucleaires Strasbourg - Rapport d`activite 1993-1994

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-12-31

    The period of 1993 1994 has seen the first experiences of the Vivitron and the multi detector E.U.R.O.G.R.A.M.They concern study of properties of superdeformed nuclei. The CRN is invested on the way of an other priority project for the decade to come: the preparation of experience near the future L.H.C collider at C.E.R.N.. Different contributions to researches, developments for detectors are explained. (N.C.).

  2. [Nicotinamidase and the so-called pyrazinamidase in mycobacteria; the simultaneous occurrence of both activites (author's transl)].

    Science.gov (United States)

    Tarnok, I; Pechmann, H; Krallmann-Wenzel, U; Röhrscheidt, E; Tarnok, Z

    1979-07-01

    Nicotin- and the so-called pyrazinamidase (in the following: "pyrazinamidase") have been found in strains of four mycobacteria species, M. fortuitum, M. gastri, M. bovis and M. microti. These findings are in contradiction to those summarized in Bergey's Manual of Determinative Bacteriology (1974). The reason for the discrepancies is that the original method (Bönicke, 1961) for amidase determination has not taken the following aspects into consideration: a) The inducibility of the nicotin- and "pyrazinamidase" (example: M. fortuitum); b) The temperature sensitivity of these enzymes (M. gastri); c) The light sensitivity of nicotinamidase (in photochromogenic M. gastri strains); d) The optimal substrate concentration which must be at least 4 mM instead of 0,8 mm. The following consequences can be drawn for the taxonomy and biochemistry of the tested organisms: e) The species status of M. gastri should be annuled. The main difference between M. gastri and M. kansasii consists only of the non-agglutinability of M. gastri by anti-M. kansasii serum. "Pyrazinamidase" and also nitrate reductase (Tarnok et al., in press) are positive in strains of both species; f) M. bovis possesses nicotin- and "pyrazinamidase" as M. tuberculosis too. Thus, these two species are more closely related than suggested earlier; g) Till now, no Mycobacterium has been found showing nicotinamidase without "pyrazinamidase" activity (or vice versa). It seems to be very probable that nicotinamidase, an enzyme of low substrate specificity, is able to hydrolyze several compounds with a nicotinamide-like structure such as pyrazinamide. Thus, we suggest the annulment of the term pyrazinamidase or the employment of quotation marks ("pyrazinamidase") to show the fictitious value of this designation.

  3. 120 Activité hypoglycémique de l'extrait aqueux d'Ajuga iva L ...

    African Journals Online (AJOL)

    PR BOKO

    Les plantes constituent une source potentielle de médicaments hypoglycémiants composés dérivés de plantes ont été utilisées dans le traitement du diabète. Le diabète touche environ 5% de la population mondiale [2] et la gestion du diabète sans aucun effet secondaire est toujours un défi pour le système de santé [3].

  4. The high level and long lived radioactive wastes; Les dechets radioactifs a haute activite et a vie longue

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-07-01

    This report presents the main conclusions of 15 years of researches managed by the CEA. This report is the preliminary version of the 2005 final report. It presents the main conclusions of the actions on the axis 1 and 3 of the law of the 30 December 1991. The synthesis report on the axis 1 concerns results obtained on the long lived radionuclides separation and transmutation in high level and long lived radioactive wastes. the synthesis report on the axis 3 presents results obtained by the processes of conditioning and of ground and underground long term storage. (A.L.B.)

  5. Complement to the 1999-2000 progress report; Complement au rapport d'activite 1999-2000

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    Among a lot of achievements relevant to INIS we can note: -) the status of the work on GLAST (gamma-ray large area space telescope) and on the Celeste telescope; -) the study of the energy and angular distributions of the fast outgoing electron beam produced in the interaction of a laser beam with a thin plastic foil and a gas jet; -) the investigation of the excitation of the 76 eV energy level of U{sup 235} by a YAG laser radiation; -) the feasibility study of a dating method of wines based on the gamma spectroscopy of specific rays of K{sup 40} and Cs{sup 137}; -) the study of nuclei beyond the proton drip line by determining the missing mass spectrum from complete kinematics measurements of the reaction products; -) the beta decay half-lives of proton-rich Kr{sup 78} fragments have been determined for all nuclei between Z = 27 and 36; -) a beta decay scheme is proposed for P{sup 26} and S{sup 27} including beta delayed one and two proton emission and gamma ray spectroscopy; -) the observation of the 2-proton emission decay of the Fe{sup 45} fundamental state; -) the measurement of the radiative capture cross-section of I{sup 129}; -) the measurement of the fission cross-section of U{sup 233} induced by fast neutrons; -) the investigation of intermediate mass fragments observed in coincidence with 2 correlated fission fragments following incomplete fusion in C{sup 12} + Th{sup 232} at E/A = 16 and 22 MeV; and -) the status of the single ion irradiation system used for the irradiation of biological samples. (A.C.)

  6. NK cell activite in C157BL/Ka mice during the development of radiation induced thymic lymphomas

    International Nuclear Information System (INIS)

    Noel, A.; Schaaf-Lafontaine, N.; Defresne, M.P.; Boniver, J.

    1985-01-01

    Treatment of C57BL/Ka mice with a split dose whole-body irradiation (four weekly irradiations of 1,75 Gy) induces the development of thymic lymphomas. NK activity of spleen cells has been determined at several internals after leukemogenic treatment. Two days after irradiations, NK activity is normal and decreases strongly after one week. This period of decline persists during about one month. Then, NK activity restores and reaches control values. Lymphomas appear in spite of NK activity restauration. The diminution of NK activity during the preleukemic period could favour preleukemic cells apparition [fr

  7. 1996 Progress report on energies and raw materials; 1996 rapport d`activite energies et matieres premieres

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    The 1996 annual progress report, from the French Department of Energy, reviews the key points of the French policy for energy and raw materials: competitiveness, environmental protection, long term supply safety, and public service. 1996 was marked by positive results for the French energy industry, difficulties for the oil refining industry, and a new impetus for renewable energies. Five surveys are presented: nuclear safety in Eastern Europe, the european directive on electric power domestic market, evolution of the oil market, conditions of refining in France, and restructuring of the Mine bureau (BRGM). 40 prominent facts are briefly reviewed, concerning sustainable energy development, nuclear energy, electric power and gas, coal, oil products, raw materials. Diagrams on energy and raw materials are also included

  8. Progress report for 94/95; Institut des Sciences Nucleaires - Rapport d`activite 1994-1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    We find here the progress report for the two years 1994 and 1995 for institute of nuclear sciences at Grenoble. In the field of quarks and leptons, three teams are invested in CERN programmes: A.T.L.A.S. near the L.H.C., D.E.L.P.H.I; the neutrino team has achieved the building of the detector in the M.U.N.U. collaboration. In the theme Hadrons physics we have G.R.A.A.L. at E.S.R.F., C.E.B.A.F. and W.A.89. Physicists are implied in the project E.L.F.E at D.E.S.Y. The study of superdeformed states go on with E.U.R.O.G.R.A.M. New techniques have been used near the programme S.A.R.A. The programme P.I.A.F.E. saw the resolution of the difficult problem of the transformation 1+ gives N+ ions of 30 KeV and their transport on long distances. The team of hybrid reactors have shown that it was possible to amplify energy by a sub critical accelerator-reactor hybrid system, experience initiated by C. Rubbia at C.E.R.N. (N.C.).

  9. Influence de l'activité des termites sur les propriétés du sol dans la ...

    African Journals Online (AJOL)

    SARAH

    30 sept. 2016 ... Mots Clés : Fertilité, sol dégradé, termites, infiltration de l'eau, matière organique, Lamto, Côte d'Ivoire. ABSTRACT ... des cultures et à la bonne production agricole se ..... et un début de dégradation chimique, biologique et.

  10. Activité antérieure – Un pionnier de la réhydratation par voie orale ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 avr. 2016 ... Renommé pour son travail avant-gardiste visant l'élaboration du processus de réhydratation par voie orale, le Dr Cash figurait parmi les lauréats du Prix Prince Mahidol de la santé publique, remis en Thaïlande en 2006. En 2011, il a reçu le prix Fries pour l'amélioration de la santé en raison de son travail ...

  11. Commission of energy regulation. 2004 activity report; Commission de regulation de l'energie. Rapport d'activite 2004

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    The commission of energy regulation (CRE) is an independent administrative authority in charge of the control of the operation of gas and electricity markets. This document is the fifth activity report of CRE and covers the July 1, 2003 - June 30, 2004 period, which corresponds to the era of opening of energy markets as a consequence of the enforcement of the June 26, 2003 European directive. In the framework of the stakes made by energy markets liberalization, this document presents the situation of the gas and electricity markets during this period (European framework, regulation of both markets, public utility mission..) and describes CRE's means for the monitoring of these markets. (J.S.)

  12. Exploration and production activities and market - Panorama 2008; Activites et marches en exploration-production - Panorama 2008

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    Following two banner years for the oil service and supply sector, marked by strong activity and a substantial increase in prices, the Exploration and Production market continued at a frenetic pace in 2007, although certain local markets retreated. In 2008, activity should stay high and prices should start stabilizing. With services in short supply, companies in the sector have been able to shift the balance of power with oil firms in their favor.

  13. Effects of mirror therapy through functional activites and motor standards in motor function of the upper limb after stroke

    OpenAIRE

    Medeiros, Candice Simões Pimenta de; Fernandes, Sabrina Gabrielle Gomes; Lopes, Johnnatas Mikael; Cacho, Enio Walker Azevedo; Cacho, Roberta de Oliveira

    2014-01-01

    The study aimed to evaluate the effects of mirror therapy through functional activities and motor standards in upper limb function of chronic stroke subjects. Six patients with paresis of the arm within at least six months after stroke were randomly to a group of functional activities (GAF - n=3) and group of motor standards (GPM - n=3). Both groups performed 15 sessions of mirror therapy for 30 minutes, but the first one (GAF) were instructed to do the bilateral and symmetrical movements bas...

  14. Activité antérieure – Le CRDI commandite la tenue d'un symposium ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Le Mona ICT Policy Centre, le Caribbean Institute of Media and Communication et l'University of the West Indies ont accueilli la réunion, en partenariat avec la Banque mondiale et le CRDI. Le symposium a permis aux experts des pays des Caraïbes et d'ailleurs d'examiner l'impact de l'accès aux technologies de ...

  15. Activités de recherche, de diffusion et de réseautage aux fins de la ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Country(s). Lebanon, Middle East, Central Asia, Far East Asia, South Asia ... IDRC “unpacks women's empowerment” at McGill University Conference. Findings from ... New funding opportunity for gender equality and climate change. IDRC is ...

  16. 91 Évaluation de l'activité inhibitrice des extraits d'une algue brune ...

    African Journals Online (AJOL)

    AKA BOKO

    OLIVERA-ROCHA, E. LISBOA -LEITE, Antioxydant activity of sulfated polysaccarides from brown and red seaweeds, Journal of applied Phycology, 19 (2007) 153-160. [14] - D. ZUBIA, D. ROBLEDO, Y. FREILE-PELEGRIN, Antioxidant activities in tropical marine macroalgae from the Yucatan peninsula Mexico, Journal of ...

  17. Activité antérieure – Échange de l'Initiative Think tank 2015, à ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 avr. 2016 ... Trois documentaires provenant de chaque région et présentés la seconde journée ont illustré la manière dont les recherches des think tanks ont donné lieu à des changements de politiques régionaux, nationaux et mondiaux. Dans le cadre de l'initiative « Southern Voice on Post-MDG International ...

  18. Activites of the radioisotopes division of IPR-CDTN-NUCLEBRAS in the studies of sedimentology and hidric polution

    International Nuclear Information System (INIS)

    Aun, P.E.

    1979-07-01

    This work describes, in a very general way, the utilization of fluorescent and radioactive tracers in sedimentological studies. It presents the specific applications of those tracers in following the motion of sediments in suspension and in the bottom. The paper describes in short the labelling, detection and analysis techniques, as well as several actual applications of those techniques by the Radioisotopes Division of Centro de Desenvolvimento da Tecnologia Nuclear-CDTN-NUCLEBRAS. (author) [pt

  19. Activities report for 1994-1995; Institut de Physique Nucleaire de Lyon - Rapport d`activite 1994-1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    Here is the progress report for the Institute of Nuclear Physics of Lyon.We find physics at Lep, R and D for CMS at LHC( Higgs boson search in the L3 collaboration, quark b physics in Delphi at Lep 100,electromagnetic calorimetry for CMS-RD18 program, CMS experiment at LHC: MSGC development), hadronic and nuclear matter(heavy ions in CMS, multifragmentation threshold, spectroscopy of superdeformed nuclei with EUROGAM), astro-particles(gamma and neutron radioactive background measurements, bolometric measurement, scintillating crystal characterization for dark matter detection, the Virgo optics), ions/clusters-matter, physico-chemical transformation by ion-solid interaction are some examples of studies realized during these two years. (N.C.).

  20. Deuxième phase d'activités du Fonds canadien de recherche sur la ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Celui-ci avait été créé pour financer des projets visant à résoudre des problèmes mondiaux touchant à l'insécurité alimentaire au moyen de la recherche appliquée, concertée et axée sur les résultats. À ce jour, le Fonds a appuyé des travaux de recherche appliquée en agriculture et en nutrition menés par 19 grands ...

  1. The internationalization of the technological activities in the energy industries; L'internationalisation des activites technologiques dans les industries energetiques

    Energy Technology Data Exchange (ETDEWEB)

    Bourgeois, B [Institut d' Economie et de Politique de l' Energie - IEPE-CNRS/ Universite Pierre Mendes-France, 38 - Grenoble (France); Jacquier-Roux, V [Institut de Recherche Economique sur la Production et le Developpement -IREPD, 38 - Grenoble (France)

    2001-06-01

    This analysis of the technological internationalization factors is defined in five chapters. The first chapter deals with the evolutionist representation of the internationalization process of the technological activities of the firms. The chapter two is an historical synthesis from 1985 to 2000, of the industrial dynamics and of the technological strategies of the petroleum and electric power industries. The chapter three details the empirical method used to verify the hypothesis. Chapter four exposes the data analysis results of the patents of the sampled firms. The last chapter is devoted to the results interpretation. (A.L.B.)

  2. Synthèse des activités biologiques et de l'utilisation de Tridax ...

    African Journals Online (AJOL)

    Tridax procumbens, une plante sauvage considérée comme une espèce envahissante, est largement utilisée en médecine traditionnelle à cause de ces multiples vertus thérapeutiques. Ainsi, de nombreux chercheurs ont valorisé les extraits de cette plante en production animale et en médecine traditionnelle. En effet, des ...

  3. Dosage des polyphénols et activité anti-oxydante de feuilles et d ...

    African Journals Online (AJOL)

    Borassus aethiopum est une plante de la famille des Arécacées. C'est un géant palmier qui présente un tronc dur appelé stipe, des racines fasciculées et des feuilles longues en forme d'éventail. Elle est presque cosmopolite et ses différentes parties sont utilisées dans nombreux domaines : économiques, écologiques, ...

  4. Activité antérieure : Le CRDI au Congrès mondial sur la santé ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 avr. 2016 ... Maladies infectieuses émergentes et résurgentes – Ebola : réponse et préparation dans les régions. Cette séance était animée par Arlyne Beeche, administratrice de programme principale du CRDI. Les conférenciers ont discuté de l'importance des facteurs socioculturels dans l'épidémie d'Ebola actuelle, ...

  5. Contribution des activités minières au développement en Afrique ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Un numéro spécial de la revue met en lumière les conclusions d'une étude financée par le CRDI sur le travail rémunéré des femmes. Policy in Focus publie un ... L'Initiative des conseils subventionnaires de la recherche scientifique en Afrique subsaharienne remporte le prix de la diplomatie scientifique. L'Initiative des ...

  6. Activité antérieure – Le CRDI commandite la tenue d'un symposium ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 avr. 2016 ... Le symposium commandité par le CRDI, qui a eu lieu à Saint Andrew, en Jamaïque, le 12 mai 2015, a traité de l'impact d'Internet sur la croissance économique et la prestation des services publics dans les Caraïbes. Les discussions issues du symposium seront intégrées au Rapport sur le développement ...

  7. National Laboratory of Hydraulics. 1996 progress report; Laboratoire National d`Hydraulique. Rapport d`activite 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    This progress report of the National Laboratory of Hydraulics (LNH) of Electricite de France (EdF) summarizes, first, the research and development studies carried out in 1996 for the development of research tools for industrial fluid mechanics and environmental hydraulics and for the development of computer tools (computer codes and softwares for fluid mechanics modeling, modeling of reactive, compressible, two-phase and turbulent flows and of complex chemical kinetics using finite elements and finite volume methods). A second parts describes the research studies performed for other services of EdF, concerning: the functioning of nuclear reactors (thermohydraulic studies of the reactor vessel and of the primary coolant circuit, gas flows following severe accidents, fluid-structure thermal coupling etc...), fossil fuel power plants, the equipment and operation of thermal power plants and hydraulic power plants, the use of electric power. A third part summarizes the river and marine hydraulic studies carried out for other companies. (J.S.) 63 refs.

  8. Activities report for 1994-1995; Institut de Physique Nucleaire de Lyon - Rapport d`activite 1994-1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-12-31

    Here is the progress report for the Institute of Nuclear Physics of Lyon.We find physics at Lep, R and D for CMS at LHC( Higgs boson search in the L3 collaboration, quark b physics in Delphi at Lep 100,electromagnetic calorimetry for CMS-RD18 program, CMS experiment at LHC: MSGC development), hadronic and nuclear matter(heavy ions in CMS, multifragmentation threshold, spectroscopy of superdeformed nuclei with EUROGAM), astro-particles(gamma and neutron radioactive background measurements, bolometric measurement, scintillating crystal characterization for dark matter detection, the Virgo optics), ions/clusters-matter, physico-chemical transformation by ion-solid interaction are some examples of studies realized during these two years. (N.C.).

  9. Occasions et difficultés associées aux activités commerciales dans ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    intégreront des reportages photo aux observations sur le terrain; - examineront les résultats à la lumière des Principes directeurs relatifs aux entreprises et aux droits de l'homme de l'ONU, de la théorie du droit, de la théorie du développement et des codes de conduite en matière de responsabilité sociale de l'entreprise.

  10. National laboratory of hydraulics. 1997 progress report; Laboratoire national d`hydraulique. Rapport d`activite 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    This report summaries the 1997 activity of the national laboratory of hydraulics from the direction of studies and researches (DER) of Electricite de France (EdF). The report comprises two parts. Part 1 gives an overview of the studies carried out for other EdF departments or for other companies or partners (functioning of nuclear reactors and fossil fuel power plants, equipments and operation of fossil fuel, nuclear and hydraulic power plants, studies related to the use of electric power, maritime and fluvial studies). Part 2 concerns the research and development of tools for industrial fluid mechanics and environmental hydraulics and the development of computer codes. A selection of relevant publications is given. (J.S.) 23 refs.

  11. A.C.R.O. activity report 2006; A.C.R.O. rapport d'activite 2006

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    This association participated in different working groups: North Cotentin radioecology group, groups of expertise on the uranium mines of Limousin, executive committee for the management of the post accidental phase of a nuclear accident or a radiological emergency situation, radioactive waste management, radiological surveillance of the territory, radiation protection mission by the Asn, radiological surveillance of the environment of the Chinon nuclear power plant, study of the presence of {sup 235}U around the site of Brennilis, study of the radioactive waste management at the Manche plant, radiological surveillance of the Cyceron cyclotron at Caen, Aurengo commission on the consequences in France of the Chernobylsk accident. Actions of information, regular publications, meeting with public are also a part of the work of this association. (N.C.)

  12. Activités insecticides de Striga hermonthica (Del. Benth (Scrophulariaceae sur Callosobrichus maculatus (Fab. (Coleoptera : Bruchidae

    Directory of Open Access Journals (Sweden)

    Nacoulma OG.

    2006-01-01

    Full Text Available Insecticidal activities of Striga hermonthica (Del. Benth (Scrophulariacecae on Callobruchus maculatus (Fab. (Coleptera Bruchidae. This paper deals with insecticidal potentialities of Striga hermonthica (Del. (Scrophulariaceae in protection of cowpea Vigna unguculata (L. Walp against Callosobruchus maculatus (Fab. (Coleoptera: Bruchidae during storage. Crude acetone extract at 0,5% w/w (100 mg of extract for 20 g of grain exhibits 48% of ovicidal effect and then reduces by half emergence rate of adult beetles at the first generation. This extract shows a weak insecticide activity against adults of C. maculatus. Petroleum ether fraction (0,4% w/w of the crude extract reveals ovicidal (51% and larvicidal (72% effects which reduce the emergence rate of adults to only 9%. LD50 and LD90 are monitored during crude extract fractionation to follow ovicidal and larvicidal compounds and to evaluate their efficacy during the isolation procedure. One fraction, mainly composed of two triterpenoid compounds has been identified as responsible of the ovicidal activity of S. hermonthica while the origin of the larvicidal activity hasn’t been identified.

  13. French butane propane committee. 2003 activity report; Comite Francais du Butane et du Propane. Rapport d'activite 2003

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-05-01

    This activity report presents the 2003 status of the actions carried out by the French butane and propane committee (CFBP) for the development of the liquefied petroleum gas (LPG) industry in France. While the past year has seen the butane, propane and LPG-fuel sales following the decay started 4 years ago, in 2004 the CFBP has reinforced its actions of public information about the LPG energy choice and has carried out several projects in order to improve the safety of LPG tanks and storage facilities, one of the first concern of LPG industry. (J.S.)

  14. French butane propane committee. 2004 activity report; Comite francais du butane et du propane. Rapport d'activite 2004

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    This activity report presents the French butane-propane committee (CFBP), an association for the promotion of liquefied petroleum gases (LPG), the characteristics of LPG fuels, the LPG market and its evolution, the CFBP's missions and the 2004 highlights: representation of subscribing companies, participation to standardization works, making techniques and regulations change, improving the safety of equipments and installations, training and information, promoting LPG products. (J.S.)

  15. French butane propane committee. 2003 activity report; Comite francais du butane et du propane. Rapport d'activite 2003

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    This activity report presents the French butane-propane committee (CFBP), an association for the promotion of liquefied petroleum gases (LPG), the characteristics of LPG fuels, the LPG market and its evolution, the CFBP's missions and the 2003 highlights: representation of subscribing companies, participation to standardization works, making techniques and regulations change, improving the safety of equipments and installations, training and information, promoting LPG products. (J.S.)

  16. Federal Aviation Administration Activites in the Agency’s 50th Year. An In-Depth Report.

    Science.gov (United States)

    1980-01-01

    and how best to deal with ** !285 0 it. Since these alternative futures are built conceptually V with tools which are at once both analytical and...what follows. Management Improvements In this area, FAA-- o Completed the conceptual and functional design of an up-graded FAA-wide uniform...it seeks is a stable relationship with agency labor organizations within a framwork which will not interfere with the agency’s accomplishment of its

  17. Amélioration des activités insecticides des protéines Vip3 de Bacillus thuringiensis

    Directory of Open Access Journals (Sweden)

    Sameh SELLAMI

    2016-07-01

    Full Text Available Vip3 proteins were considered as a second generation of biopesticides. They are synthesized and secreted by Bacillus thuringiensis during the vegetative growth phase. Vip3 proteins, which are discovered in 1990, are of great interest for the control of Lepidopteran insects pests such as Agrotis ipsilon, Spodoptera littoralis, Spodoptera exigua and Spodoptera frugiperda. Many researches were conducted on the Vip3 proteins in order to enlarge their spectrum, improve their insecticidal activities and resolve the problems of resistance that appeared recently after the massive use of δ-endotoxins, considered as first generation of biopesticides. In this review, we tried to summarize research studies interested in the improvement of the insecticidal activities of Vip3 proteins.

  18. Katimavik Participant's Manual, Book VII, Socio-Cultural Activities = Katimavik manuel du participant, cahier VII, activites socio-culturelles.

    Science.gov (United States)

    OPCAN, Montreal (Quebec).

    The bilingual student manual, devoted to the socio-cultural learning activity portion of Katimavik (a nine-month volunteer community service and experiential learning program for 17 to 21 year old Canadians), contains sections on learning program objectives and trimester guidelines, optional activities, resume recordkeeping, general topic…

  19. The storage center of very-low level radioactive wastes; Le centre de stockage des dechets de tres faible activite

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    The low level radioactive wastes have a radioactivity level as same as the natural radioactivity. This wastes category and their storage has been taken into account by the french legislation. This document presents the storage principles of the site, containment, safety and the Center organization. (A.L.B.)

  20. Finanţarea activităţii de cercetare prin programe naţionale

    Directory of Open Access Journals (Sweden)

    Mircea-Iosif Rus

    2012-03-01

    Full Text Available The scientific research activity represents a major factor in socioeconomic development and an engine of the economic and social progress; science and technology are key components of modern life and they help countries achieve their economic and social goals, achieve sustainable development. In scientific research we distinguish between basic research, applied research and research for development and innovation. Thus, if knowledge refers to rules and principles, we can consider it a result of basic research, expressed in publications. If knowledge refers to procedures or the application of this knowledge to specific contexts, as a result of the basic research, then we can discuss about the applied scientific research,whose result appears in publications.

  1. Hydrogen and fuel cell activity report - France 2010; Rapport d'activites Hydrogene et Piles a combustible - France 2010

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2010-07-01

    The report gathers the main outstanding facts which occurred in France in the field of hydrogen and fuel cells in 2010. After having noticed some initiatives (the Grenelle II law, an investment package, the new role of the CEA, the new role of the IFP), the report presents several projects and programs regarding hydrogen: ANR programs, creation of a national structure (the HyPaC platform), regional initiatives and local actions, colloquiums and meetings in France and in the world, research projects (photo-synthesis as a new electric energy source), a technical-economic investigation (HyFrance3), demonstrator projects (the Althytude project by GDF and Suez, the Plathee hybrid locomotive by the SNCF, the H2E project, the Zero CO{sub 2} sailing boat, and the Myrte project), educational applications, activity in small and medium-sized enterprises (CETH, SAGIM, HYCAN, McPhy, N-GHY).

  2. A.C.R.O. activity report 2004; A.C.R.O. rapport d'activite 2004

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    The A.C.R.O. continues to play an indispensable role through both additional objectives which guide its activities: the environmental surveillance and the public information. In 2004, these objectives are translated by numerous actions which join the continuity of the orientations taken for several years, as for example the periodic publication of all the analysis results via our quarterly review and our www.acro.eu.org web site, but also our participation at commissions, working groups and groups of institutional experts or not. Year 2004 marks the beginning of our commitment in Belarus, country still strongly marked by the disaster of Chernobylsk, to work with the population of the contaminated territories. The project aims to set up a surveillance of the contamination at the inhabitants disposal and to promote the distribution of information and knowledge in radiological protection, essentially turned to the young people, the housewives and the pregnant women. The peculiarity of this project is to give the coordination to the inhabitants, so that they can pursue it in any autonomy. On the day before the 20. anniversary of the disaster, this commitment seems to us important and meaningful as the international community seems to have forgotten Chernobylsk; beyond the help which we can bring over there, we also have many things to be learnt to pass on and testify around us. As regards the environmental surveillance, the A.C.R.O. decided in 2004 to melt again its programs of surveillance and evaluation led on the scale of the big West to form only one. Key project of year 2004, the launch of the network citizen of the wakefulness, information and radioecological evaluation (R.I.V.I.E.R.E.) allows to understand the levels and the tendencies of the aquatic ecosystems radioactivity on the scale of the Seine Normandy pond: from Nogent-sur-Seine to La Hague and from the Mont-Saint-Michel to Penly. The peculiarity of this network, which also makes its strength, is to associate strictly all those who wish to appropriate the knowledge of the radioactivity levels 'around them'. With R.I.V.I.E.R.E, the citizen is at the same moment an author and an actor of the surveillance of his environment as his information, a initiative which we defend for a long time. Finally, on the sector of the training, the itinerant operation led this year within the framework of the 'feast of the science', has allowed to introduce 800 young people of our region to the radioactivity measure in our mobile 'laboratory', but also to make sensitive the general public in the surveillance citizen of environment. (N.C.)

  3. Progress report for 94/95; Institut des Sciences Nucleaires - Rapport d`activite 1994-1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-12-31

    We find here the progress report for the two years 1994 and 1995 for institute of nuclear sciences at Grenoble. In the field of quarks and leptons, three teams are invested in CERN programmes: A.T.L.A.S. near the L.H.C., D.E.L.P.H.I; the neutrino team has achieved the building of the detector in the M.U.N.U. collaboration. In the theme Hadrons physics we have G.R.A.A.L. at E.S.R.F., C.E.B.A.F. and W.A.89. Physicists are implied in the project E.L.F.E at D.E.S.Y. The study of superdeformed states go on with E.U.R.O.G.R.A.M. New techniques have been used near the programme S.A.R.A. The programme P.I.A.F.E. saw the resolution of the difficult problem of the transformation 1+ gives N+ ions of 30 KeV and their transport on long distances. The team of hybrid reactors have shown that it was possible to amplify energy by a sub critical accelerator-reactor hybrid system, experience initiated by C. Rubbia at C.E.R.N. (N.C.).

  4. Reconceptualizarea funcţiei procurorului de supraveghere a activităţii speciale de investigaţie

    Directory of Open Access Journals (Sweden)

    Obadă Dumitru

    2018-01-01

    Full Text Available This paper is an endeavor to analyze Moldova’s legal framework aimed at regulating Special investigative activity in terms ofsubjects and their functional competencies, invested by a legislator with duties of supervisingSpecial investigative measures. It is also an attempt to reveal the normative inconsistencies specified in the regulatory content of the Criminal Procedural Law, including a verifiable analysis of the legal norms stipulated in the Code of Criminal Procedure, as well as other regulations related to this specific area of state activity specified in the related legislation. Moreover, the author sought to highlight the adverse legal effects that may be generated by the misinterpretation and misapplication of the legal norms related to Special investigative activity. While carrying out this study, we have taken into account the practice of law enforcement by state bodies in conducting criminal investigations, as well as the attempt to clarify and define the concept of ,,supervising special investigative activity”.

  5. Évaluation in vitro de l'activité antimicrobienne de l'extrait aqueux d ...

    African Journals Online (AJOL)

    SARAH

    31 juil. 2016 ... Agrobiologie, Université des Sciences et Techniques de Masuku (USTM), BP 067 Franceville, Gabon. 2 Laboratoire ... 4 Institut de Recherche en Écologie Tropicale, Herbier National, BP 13354 Libreville. ..... VIH. Médecine et Maladies Infectieuses 32. (12):696-703 ... Diagnostic Microbiology and Infectious.

  6. Complement to the 1999-2000 progress report; Complement au rapport d'activite 1999-2000

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    Among a lot of achievements relevant to INIS we can note: -) the status of the work on GLAST (gamma-ray large area space telescope) and on the Celeste telescope; -) the study of the energy and angular distributions of the fast outgoing electron beam produced in the interaction of a laser beam with a thin plastic foil and a gas jet; -) the investigation of the excitation of the 76 eV energy level of U{sup 235} by a YAG laser radiation; -) the feasibility study of a dating method of wines based on the gamma spectroscopy of specific rays of K{sup 40} and Cs{sup 137}; -) the study of nuclei beyond the proton drip line by determining the missing mass spectrum from complete kinematics measurements of the reaction products; -) the beta decay half-lives of proton-rich Kr{sup 78} fragments have been determined for all nuclei between Z = 27 and 36; -) a beta decay scheme is proposed for P{sup 26} and S{sup 27} including beta delayed one and two proton emission and gamma ray spectroscopy; -) the observation of the 2-proton emission decay of the Fe{sup 45} fundamental state; -) the measurement of the radiative capture cross-section of I{sup 129}; -) the measurement of the fission cross-section of U{sup 233} induced by fast neutrons; -) the investigation of intermediate mass fragments observed in coincidence with 2 correlated fission fragments following incomplete fusion in C{sup 12} + Th{sup 232} at E/A = 16 and 22 MeV; and -) the status of the single ion irradiation system used for the irradiation of biological samples. (A.C.)

  7. The petrochemical activity in France. Data of 2010; L'activite de la petrochimie en France. Donnees 2010

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2011-07-01

    This document proposes a table of data regarding the consumption of oil basic products (ethane, propane, butane, naphtha), the quantities of products produced by vapour-crackers, the olefin production by refineries, and the quantities of raw materials for the production of aromatic compounds (vapour-cracker pyrolysis, refining by-products). These data are briefly commented

  8. Development of magnetic calorimeters for absolute activity measurement; Developpement de calorimetres magnetiques pour la mesure absolue d'activite

    Energy Technology Data Exchange (ETDEWEB)

    Loidl, M.; Leblanc, E.; Rodrigues, M.; Qasimi, A.; Bouchard, J.; Censier, B.; Branger, T.; Lacour, D. [CEA Saclay, LNE-LNHB, Lab. National Henri Becquerel, LIST, 91 - Gif-sur-Yvette (France)

    2009-07-01

    We have developed a prototype magnetic calorimeter, operated at very low temperature, for absolute activity measurement of low energy emitting radionuclides. A weighed source of {sup 55}Fe has been enclosed inside the detector absorber assuring a high detection efficiency. The result of a preliminary activity measurement carried out with this prototype is compatible with a measurement by liquid scintillation counting. Apart from the high detection efficiency, this approach is particularly interesting since it introduces a new method into a field where only few measuring techniques are available. (authors)

  9. Activité antérieure : Le CRDI au Congrès mondial sur la santé ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 avr. 2016 ... Le 14e Congrès mondial sur la santé publique s'est déroulé du 11 au 15 février 2015 au parc scientifique Science City de Calcutta, en Inde. Le thème de cette année était « Peuples en santé, environnement sain ». Cet événement a été organisé par l'Association de santé publique de l'Inde et la Fédération ...

  10. The crisis and activities of the petroleum industry; La crise et les activites de l'industrie petroliere

    Energy Technology Data Exchange (ETDEWEB)

    Chevallier, B.

    2010-02-15

    In this work, Mr F. Birol (IEA) presents the results of a recent study made by the IEA on the impacts in the world of the crisis for the production of petroleum and natural gas, the exploration/production investments and the demand of petroleum products. A projection for the years 2015 - 2030 is made. Then, Mr J.J. Mosconi (Total) presents the strategy of the Total's firm in terms of investments on account of the crisis. At last, Mr K. Bennaceur (Schlumberger) gives its point of view of the impact of the crisis on its activity. (O.M.)

  11. Activité antérieure – Le Dr David Butler-Jones discute de la lutte ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Inde en matière de santé de 2015 au India International Centre, à New Delhi. ... Il a affirmé que la méthode stratégique « que savons-nous ? que ne savons-nous pas ? que pouvons-nous faire pour changer la situation ?

  12. Activité antérieure – Le Dr David Butler-Jones discute de la lutte ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 avr. 2016 ... Solar dryers are improving livelihoods in Bhutan. Des séchoirs à fruits et à légumes fonctionnant à l'énergie solaire aident les résidents de villages reculés du sud‑est du Bhoutan à accroître leur. Voir davantageSolar dryers are improving livelihoods in Bhutan ...

  13. 1996 Progress report on energies and raw materials; 1996 rapport d`activite energies et matieres premieres

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    The 1996 annual progress report, from the French Department of Energy, reviews the key points of the French policy for energy and raw materials: competitiveness, environmental protection, long term supply safety, and public service. 1996 was marked by positive results for the French energy industry, difficulties for the oil refining industry, and a new impetus for renewable energies. Five surveys are presented: nuclear safety in Eastern Europe, the european directive on electric power domestic market, evolution of the oil market, conditions of refining in France, and restructuring of the Mine bureau (BRGM). 40 prominent facts are briefly reviewed, concerning sustainable energy development, nuclear energy, electric power and gas, coal, oil products, raw materials. Diagrams on energy and raw materials are also included

  14. OMEGA: Observatoire pour la Minéralogie, l'Eau, les Glaces et l'Activité

    Science.gov (United States)

    Bibring, J.-P.; Soufflot, A.; Berthé, M.; Langevin, Y.; Gondet, B.; Drossart, P.; Bouyé, M.; Combes, M.; Puget, P.; Semery, A.; Bellucci, G.; Formisano, V.; Moroz, V.; Kottsov, V.; Bonello, G.; Erard, S.; Forni, O.; Gendrin, A.; Manaud, N.; Poulet, F.; Poulleau, G.; Encrenaz, T.; Fouchet, T.; Melchiori, R.; Altieri, F.; Ignatiev, N.; Titov, D.; Zasova, L.; Coradini, A.; Capacionni, F.; Cerroni, P.; Fonti, S.; Mangold, N.; Pinet, P.; Schmitt, B.; Sotin, C.; Hauber, E.; Hoffmann, H.; Jaumann, R.; Keller, U.; Arvidson, R.; Mustard, J.; Forget, F.

    2004-08-01

    The OMEGA visible and near-IR mapping spectrometer will reveal the mineralogical and molecular composition of the surface and atmosphere of Mars through the spectral analysis of the diffused solar light and surface thermal emission. It will provide global coverage at medium resolution (2-5 km) for altitudes from 1500 km to 4000 km, and high-resolution (<350 m) spectral images of selected areas.

  15. Influence des substrats carbonés et minéraux sur l'activité des ...

    African Journals Online (AJOL)

    p < 0.0001). BLIS were stable to heat treatment ranging from 50 °C to 100 °C for 30 min. Conclusion and application of findings: These inhibitory substances produced, could be bacteriocins and could contribute to a better food preservation.

  16. IPSN's 2001 activity report; Rapport d'activite 2001 de l'IPSN

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    This report summarizes the 2001 activities and operation of the French institute of nuclear protection and safety (IPSN) which has become the institute of radioprotection and nuclear safety (IRSN) after its merging with the office of protection against ionizing radiations (OPRI). IPSN's activities cover: the safety of nuclear facilities, the safety of nuclear wastes, the management of emergencies, the management of sensible materials, the protection of the environment and of the public health, some research activities with foreign partners (central and eastern Europe, Asia..), and a partnership with the GRS, the German homologue of IPSN. (J.S.)

  17. 2004-2006 activity report of Dapnia; Rapport d'activite 2004-2006 du Dapnia

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    This document presents the research programs of the Department of Astrophysics, Particle Physics, Nuclear Physics and the related Instrumentation (Dapnia) of the French atomic energy commission (CEA). These programs deal with: 1 -the ultimate constituents of matter (standard model, physics at the LHC, neutrinos, hadrons structure); 2 - the energy content of Universe (dark matter, dark energy, antimatter and CP violation); 3 - the Universe's structuration (cosmology and structures formation in the Universe, formation and evolution of galaxies); 4 - structure and evolution of stars (formation of stars and planets, stellar and laboratory plasmas, compact objects, cosmic ray sources); 5 - nuclear matter in its extreme states (quarks and gluons plasma, exotic nuclei); 6 - innovation for detection systems (development of detectors, signal processing and real-time systems, intensive calculation and simulation); 7 - magnets and accelerators (particle accelerators, superconducting magnets, test facilities, new developments for magnets and accelerators instrumentation); 8 - physics for nuclear energy (nuclear data and modeling, fusion research technology); 9 - Dapnia's expertise for the society (physics and health, dismantling and aid to the design of nuclear facilities, light sources, environment). A list of publications completes the document. (J.S.)

  18. Experiment search of the electroweak symmetry breaking in the H {yields} {gamma}{gamma} channel and of a solution of the hierarchy problem in the Atlas experiment: participation to the tests of the electronics of the electromagnetic calorimeter; Recherche experimentale de la brisure spontanee de symetrie electrofaible dans le canal H {yields} {gamma}{gamma} et d'une solution au probleme de hierarchie dans ATLAS. Participation a la preparation de l'electronique du calorimetre electromagnetique

    Energy Technology Data Exchange (ETDEWEB)

    Escalier, M

    2005-04-15

    This thesis deals with the understanding of the spontaneous electroweak symmetry breaking mechanism in the ATLAS experiment at LHC collider, by studying two complementary topics: the search for the Higgs boson in the H {yields} {gamma}{gamma} channel, and a search for extra dimensions in the gluon sector. Tests of the electronic of the electromagnetic calorimeter allowed us to validate various cards that were under the responsibility of the LPNHE. Using full simulation data of the detector allowed us to precisely compute mass resolution of the di-photon system. Due to recent theoretical improvements, signal and background have been studied at the next order of the perturbative development, which increases cross-sections. With regards to the jet background, a study has been done using discriminating variables in order to obtain, for a 80 % photons efficiency, a rejection factor of 7000. The discovery potential benefits from this change of cross-sections and increases by 50 % in comparison with the same analysis done at the leading order. In addition to this, a new analysis using a maximum likelihood method allowed us to increase by 40 % the discovery potential in comparison with our classical analysis. In conclusion, the Higgs boson of 120 GeV/c{sup 2} can be now discovered in this channel with an integrated luminosity of 10 fb{sup -1}. Furthermore, the consistency of the problem of the Higgs boson mass can be solved by introducing extra dimensions in which gluons can propagate. We have shown that it was possible to discover extra-dimensions up to a compactification scale of 15 TeV. (author)

  19. Experiment search of the electroweak symmetry breaking in the H {yields} {gamma}{gamma} channel and of a solution of the hierarchy problem in the Atlas experiment: participation to the tests of the electronics of the electromagnetic calorimeter; Recherche experimentale de la brisure spontanee de symetrie electrofaible dans le canal H {yields} {gamma}{gamma} et d'une solution au probleme de hierarchie dans ATLAS. Participation a la preparation de l'electronique du calorimetre electromagnetique

    Energy Technology Data Exchange (ETDEWEB)

    Escalier, M

    2005-04-15

    This thesis deals with the understanding of the spontaneous electroweak symmetry breaking mechanism in the ATLAS experiment at LHC collider, by studying two complementary topics: the search for the Higgs boson in the H {yields} {gamma}{gamma} channel, and a search for extra dimensions in the gluon sector. Tests of the electronic of the electromagnetic calorimeter allowed us to validate various cards that were under the responsibility of the LPNHE. Using full simulation data of the detector allowed us to precisely compute mass resolution of the di-photon system. Due to recent theoretical improvements, signal and background have been studied at the next order of the perturbative development, which increases cross-sections. With regards to the jet background, a study has been done using discriminating variables in order to obtain, for a 80 % photons efficiency, a rejection factor of 7000. The discovery potential benefits from this change of cross-sections and increases by 50 % in comparison with the same analysis done at the leading order. In addition to this, a new analysis using a maximum likelihood method allowed us to increase by 40 % the discovery potential in comparison with our classical analysis. In conclusion, the Higgs boson of 120 GeV/c{sup 2} can be now discovered in this channel with an integrated luminosity of 10 fb{sup -1}. Furthermore, the consistency of the problem of the Higgs boson mass can be solved by introducing extra dimensions in which gluons can propagate. We have shown that it was possible to discover extra-dimensions up to a compactification scale of 15 TeV. (author)

  20. Design of a Hot Pilot-Plant Facility for Demonstrating the Pot-Calcination Process; Installation Pilote de Haute Activite pour la Demonstration du Procede De Calcination En Pot; 041a 041e 041d 0421 0422 0420 0423 041a 0426 0418 042f 0413 041e 0420 042f 0427 0415 0419 041e 041f 042b 0422 041d 041e 0419 0423 0421 0422 0410 041d 041e 0412 041a 0418 0414 041b 042f 0414 0415 041c 041e 041d 0421 0422 0420 0410 0426 0418 0418 041f 0420 041e 0426 0415 0421 0421 0410 041a 0410 041b 042c 0426 0418 041d 0418 0420 041e 0412 0410 041d 0418 042f 0412 0422 0418 0413 041b 042f 0425 ; Construccion de una Instalacion Experimental de Evevada Actividad para el Proceso de Calcinacion en Crisol

    Energy Technology Data Exchange (ETDEWEB)

    Buckham, J. A. [Phillips Petroleum Company, Idaho Chemical Processing Plant, Idaho Falls, ID (United States)

    1963-02-15

    suspected hazards. (author) [French] On a mis au point une installation pour la demonstration du procede de calcination en pot avec des dechets de haute activite provenant du traitement de combustibles gaines avec des alliages d'aluminium, du traitement Darex ou electrolytique de combustibles a gaine en acier inoxydable et du procede Purex. Cette installation permettra aussi de determiner les methodes a suivre pour une production economique de matieres de faible porosite et relativement non lixiviables, par l'addition des reactifs appropries aux dechets introduits dans le calcinateur. Le procede de calcination en pot, qui consiste en une concentration par evapo- rationetune decomposition thermique dans le pot qui servira de recipient de stockage definitif, a ete elabore au Laboratoire national d*Oak Ridge; il a ete mis au point: en laboratoire, avec des substances radioactives; dans une insta,llation pilote avec des substances inactives. L'appareillage de demonstration avec des substances radioactives permettra de preciser et de resoudre les problemes de fonctionnement et de controle que posent le calcinateur ou les appareils annexes de preparation de la charge et d'epuration des condensats; beaucoup de ces problemes sont lies a l'auto-echauffement et a la volatilite des produits de fission. Cet appareillage permettra de determiner la charge et la densite dans le pot, la capacite de lixiviation, le point de fusion, la teneur en substances volatiles, le degagement de chaleur et la conductibilite thermique du produit calcine. Il faut determiner en outre: les fluctuations transitoires de temperature du produit calcine, le comportement des produits de fission pendant la calcination, la decontamination de tous les effluents liquides et gazeux, le besoin de ventilation des pots stockes, la meilleure methode de scellage a distance des pots et les methodes a suivre pour reduire au minimum le volume des gaz d'echappement non condensables. On utilisera des pots de 20 a 30 cm de

  1. Continuous Calcination of High-Level Radioactive Wastes by Means of a Rotary-Ball Kiln; Calcination Continue de Dechets de Haute Activite dans un Four Rotatif a Billes; 041d 0415 041f 0420 0415 0420 042b 0412 041d 041e 0415 041a 0410 041b 042c 0426 0418 041d 0418 0420 041e 0412 0410 041d 0418 0415 0412 042b 0421 041e 041a 041e 0410 041a 0422 0418 0412 041d 042b 0425 041e 0422 0425 041e 0414 041e 0412 0412 041e 0412 0420 0410 0429 0410 042e 0429 0415 0419 0421 042f 0428 0410 0420 041e 0412 041e 0419 041f 0415 0427 0418 ; Calcinacion Continua de Desechos de Elevada Radiactividad en un Horno de Bolas Rotatorio

    Energy Technology Data Exchange (ETDEWEB)

    Regan, W. H.; Hatch, L. P.; Domish, R. F. [Brookhaven National Laboratory, Upton, Long Island, NY (United States)

    1963-02-15

    in in diam., has a heated length of 7 ft and is designed to calcine approximately 6 gal/hr of waste. The paper presents an outline of the essential features of the Brookhaven calciner, with particular emphasis on the development of a rotary gas seal, together with a discussion of the results of operation of the pilot plant with simulated non-radioactive aluminium nitrate waste feed. (author) [French] calcination de dechets liquides de haute activite et a forte teneur en sels, qui permet de convertir des melanges de sels en des solides compacts presente d'importants avantages pour l'elimination definitive des dechets,savoir une reduction considerable du volume et une simplification generale des problemes que pose l'emmagasinage a long term Parmi les types de dechets que l'on soumet habituellement a la calcination, on peut citer ceux qui resultent du traitement aqueux des combustibles comportant des alliages d'aluminium ou des alliages de zirconium, ou du traitement de combustibles gaines d'acier inoxydable ou munis de matrices en acier inoxydable. La decomposition en leurs oxydes respectifs des melanges de sels ainsi formes (nitrate d'aluminium, fluorure de zirconium et nitrate ferrique,) pose un certain nombre de problemes delicats, dont plusieurs ont pour origine la formation de solides fortement radioactifs contenant, en proportions considerables,des particules de Tordre de quelques microns. Un dispositif de calcination interessant, actuellement a l'etude au Laboratoire national de Brookhaven, est fonde sur le principe du four rotatif a billes. Il consiste essentiellement en un four en forme de tube horizontal, tournant lentement et chauffe exterieurement par des resistances electriques. Les matieres a calciner, introduites dans le four par une tuyere de distribution, tombent sur un lit chaud de billes metalliques qui facilitent la transmission de la chaleur et empechent la formation d'agglomeres volumineux lors de la calcination. Les solides calcines debordent par

  2. Hot laboratory in Saclay. Equipment and radio-metallurgy technique of the hot lab in Saclay. Description of hot cell for handling of plutonium salts. Installation of an hot cell; Laboratoire a tres haute activite de Saclay. Equipement et techniques radiometallurgiques du laboratoire a haute activite de Saclay. Description de cellules pour manipulation de sels de plutonium. Amenagement d'une cellule du laboratoire de haute activite

    Energy Technology Data Exchange (ETDEWEB)

    Bazire, R; Blin, J; Cherel, G; Duvaux, Y; Cherel, G; Mustelier, J P; Bussy, P; Gondal, G; Bloch, J; Faugeras, P; Raggenbass, A; Raggenbass, P; Fufresne, J [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1959-07-01

    Describes the conception and installation of the hot laboratory in Saclay (CEA, France). The construction ended in 1958. The main aim of this laboratory is to examine fuel rods of EL2 and EL3 as well as nuclear fuel studies. It is placed in between both reactors. In a first part, the functioning and specifications of the hot lab are given. The different hot cells are described with details of the ventilation and filtration system as well as the waste material and effluents disposal. The different safety measures are explained: description of the radiation protection, decontamination room and personnel monitoring. The remote handling equipment is composed of cutting and welding machine controlled with manipulators. Periscopes are used for sight control of the operation. In a second part, it describes the equipment of the hot lab. The unit for an accurate measurement of the density of irradiated uranium is equipped with an high precision balance and a thermostat. The equipment used for the working of irradiated uranium is described and the time length of each operation is given. There is also an installation for metallographic studies which is equipped with a manipulation bench for polishing and cleaning surfaces and a metallographic microscope. X-ray examination of uranium pellets will also be made and results will be compared with those of metallography. The last part describes the hot cells used for the manipulation of plutonium salts. The plutonium comes from the reprocessing plant and arrived as a nitric solution. Thus these cells are used to study the preparation of plutonium fluorides from nitric solution. The successive operations needed are explained: filtration, decontamination and extraction with TBP, purification on ion exchangers and finally formation of the plutonium fluorides. Particular attention has been given to the description of the specifications of the different gloveboxes and remote handling equipment used in the different reaction steps and manipulations. (M.P.)

  3. Hot laboratory in Saclay. Equipment and radio-metallurgy technique of the hot lab in Saclay. Description of hot cell for handling of plutonium salts. Installation of an hot cell; Laboratoire a tres haute activite de Saclay. Equipement et techniques radiometallurgiques du laboratoire a haute activite de Saclay. Description de cellules pour manipulation de sels de plutonium. Amenagement d'une cellule du laboratoire de haute activite

    Energy Technology Data Exchange (ETDEWEB)

    Bazire, R.; Blin, J.; Cherel, G.; Duvaux, Y.; Cherel, G.; Mustelier, J.P.; Bussy, P.; Gondal, G.; Bloch, J.; Faugeras, P.; Raggenbass, A.; Raggenbass, P.; Fufresne, J. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1959-07-01

    Describes the conception and installation of the hot laboratory in Saclay (CEA, France). The construction ended in 1958. The main aim of this laboratory is to examine fuel rods of EL2 and EL3 as well as nuclear fuel studies. It is placed in between both reactors. In a first part, the functioning and specifications of the hot lab are given. The different hot cells are described with details of the ventilation and filtration system as well as the waste material and effluents disposal. The different safety measures are explained: description of the radiation protection, decontamination room and personnel monitoring. The remote handling equipment is composed of cutting and welding machine controlled with manipulators. Periscopes are used for sight control of the operation. In a second part, it describes the equipment of the hot lab. The unit for an accurate measurement of the density of irradiated uranium is equipped with an high precision balance and a thermostat. The equipment used for the working of irradiated uranium is described and the time length of each operation is given. There is also an installation for metallographic studies which is equipped with a manipulation bench for polishing and cleaning surfaces and a metallographic microscope. X-ray examination of uranium pellets will also be made and results will be compared with those of metallography. The last part describes the hot cells used for the manipulation of plutonium salts. The plutonium comes from the reprocessing plant and arrived as a nitric solution. Thus these cells are used to study the preparation of plutonium fluorides from nitric solution. The successive operations needed are explained: filtration, decontamination and extraction with TBP, purification on ion exchangers and finally formation of the plutonium fluorides. Particular attention has been given to the description of the specifications of the different gloveboxes and remote handling equipment used in the different reaction steps and manipulations. (M.P.)

  4. Search for correlations between the electroencephalogram activity and SPECT in ictal phase; Recherche de correlations entre activite electroencephalographique et TEMP a la phase ictale

    Energy Technology Data Exchange (ETDEWEB)

    Lamy-Lhullier, Ch.; Derambure, Ph.; Josien, E.; Destee, A.; Vermersch, P.; Steinling, M. [CHR and U de Lille, 59037 Lille Cedex (France)

    1997-12-31

    There are numerous unknowns especially on the failures of ictal SPECT (lack of focus), otherwise, a very promising method in aiding localization of the epileptogenic focus. It appears interesting to find whether there exist predictive electro-encephalic factors for obtaining a focus by the SPECT performed in 23 patients included in a protocol of phase I of refractory partial crisis (PC). The IV injection of 740 MBq of ECD-Tc is effectuated as rapidly as possible after the electric crisis onset. The image acquisition one hour after the injection is performed by means of a dedicated camera (Tomomatic 564). A normalization is done of the activity obtained relative to mean cerebellar activity as well as a reconstruction in the temporal lobe axis. The type and the duration of electric activity (the smoothing, peaked waves, rhythmic activity), duration of a possible secondary generalization and the delay of tracer injection are analyzed. In good agreement with the electro-clinical data, the ictal SPECT recovers a focus in 14 patients (temporal in 13 patients, and occipital in one). No focus was detected in 9 patients among whom 5 patients presented PCs, and 4 patients sub-intrant crises. The electric analysis permits to show: 1 - the importance of the partial crisis; 2 - obtaining a focus in spite of a secondary generalization; 3 - that the on-set of crisis marked by an electrical smoothing appears to be a good predictive factor in obtaining an ictal focus, recovered frequently in temporal epilepsy

  5. The internationalization of the technological activities in the energy industries; L'internationalisation des activites technologiques dans les industries energetiques

    Energy Technology Data Exchange (ETDEWEB)

    Bourgeois, B. [Institut d' Economie et de Politique de l' Energie - IEPE-CNRS/ Universite Pierre Mendes-France, 38 - Grenoble (France); Jacquier-Roux, V. [Institut de Recherche Economique sur la Production et le Developpement -IREPD, 38 - Grenoble (France)

    2001-06-01

    This analysis of the technological internationalization factors is defined in five chapters. The first chapter deals with the evolutionist representation of the internationalization process of the technological activities of the firms. The chapter two is an historical synthesis from 1985 to 2000, of the industrial dynamics and of the technological strategies of the petroleum and electric power industries. The chapter three details the empirical method used to verify the hypothesis. Chapter four exposes the data analysis results of the patents of the sampled firms. The last chapter is devoted to the results interpretation. (A.L.B.)

  6. Impacts des activités d'extraction de gravier au Sud du Bénin et leur perception par la population locale

    Directory of Open Access Journals (Sweden)

    Aïtondji, AL.

    2016-01-01

    Full Text Available Impacts of gravel extraction activities in Southern Benin: Residents' perception. Gravel extraction activities in Southern Benin are carried out without formal license from the state authorities. The majority of sites are rented from landowners and located near other forms of land use including human settlements. This study aims at assessing the perception by the residents of these gravel extraction operations. The results show the social services and damages of this industry. An ordinal logit regression revealed significant influences of the respondents' ethnic group, occupation, education level, marital status and age on the perception of road infrastructure, dust pollution, loss of agricultural land and school drop-out. Therefore, it is important that the local authorities undertake mitigation actions in particular in order to prevent road dust occurrence and to restore abandoned sites so that these sites are again available for agriculture.

  7. Activité antérieure – Le secteur privé pourrait jouer un rôle de ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    16 sept. 2014 ... Le 1er septembre 2014, à Addis-Abeba, en Éthiopie, des spécialistes qui se penchent sur différentes questions ayant trait à l'agriculture et à la sécurité alimentaire ont pris part au dialogue Nourrir la population africaine grâce à la recherche. Ce dialogue de haut niveau avait pour but de leur permettre ...

  8. La qualification de l'environnement professionnel dans l'activité des dirigeants : le cas de l'hôpital de Curicó au Chili

    OpenAIRE

    Alvear-Vega, Sandra

    2011-01-01

    The main contribution of this thesis is to enrich the understanding of an aspect in the professionalization of health managers, the activity. Much of the leadership training can be based on an analysis, made by themselves, about their own working situations. This research is a contribution from Adult Education to Management Science: understanding the qualifying activities undertaken by leaders in their daily work. Qualification activities undertaken by leaders are social and discursive activi...

  9. Lytic process studies on anaerobic digestion of organic wastes. Etude des activites lytiques intervenant au cours de la digestion anaerobie des dechets organiques; Rapport final

    Energy Technology Data Exchange (ETDEWEB)

    Durecu, S.; Thauront, J. (PEC Engineering, 95 - Cergy Pontoise (France). Service de Recherche et Developpement); Festino, C.; Aubart, C.; Reisinger, O. (Nancy-1 Univ., 54 - Vandoeuvre-les-Nancy (France). Lab. d' Ecologie Microbienne)

    1990-01-01

    To improve anaerobic digestion of pig manure, solubilization of the solid fraction was studied as the rate limiting step in the biomethanation process in an experimental completely mixed digester. The performance of conventional digesters should anaerobic microflora were inefficient in degrading complex biopolymers such as plant fibers. For pectin or cellulose, the use of digestible co-substrates accelerated methanation by increasing the yield of methane and a doubling of the apparent first order solubilization rate constant (Kp = 0.090/d). Lignin should methanation by decreasing methane yield and reducing the rate constant (Kp = 0.035/d). This inhibition was unrelated to volatile fatty acid accumulation. Nine strains of pectinolytic and/or cellulolytic bacteria were isolated. Chitin, a structural constituent of many final species, was effectively solubilized dining anaerobic digestion of pig manure. Seven strains of chitinolytic bacteria were isolated by high chitnese activity. The mycolytic power of fermenting manure processes acting through lytic microflora has been shown to be an effective antagonist of soil borne phytopathogenic fungi, as well as a fertilizer. In greenhouse trails, this compiled fraction demonstrated its ability to control flux unit. Keratin enhanced methane production, and increased H{sub 2}S nearly six-fold. Bacterial strains able to solubilize keratin were also used in autoclawed feather meal to extract the amino acids. (KJD)

  10. Activité des extraits de six variétés de piment (Capsicum) utilisés en ...

    African Journals Online (AJOL)

    SARAH

    31 oct. 2014 ... Par ailleurs, les extraits ont montré des effets fongicide contre ... nombreux médicaments et elle y contribue encore. (Kporou et al., 2009). En effet, l'industrie pharmaceutique moderne elle-même, continue de s'appuyer sur la diversité ... prennent des mesures de plus en plus strictes pour garantir l'innocuité ...

  11. Interleukin 6 modulates acetylcholinesterase activity of brain neurons; Effet de l`interleukine 6 sur l`activite de l`acetylcholinesterase des neurones centraux

    Energy Technology Data Exchange (ETDEWEB)

    Clarencon, D.; Multon, E.; Galonnier, M.; Estrade, M.; Fournier, C.; Mathieu, J.; Mestries, J.C.; Testylier, G.; Fatome, M.

    1995-12-31

    Classically, radiation injuries results in a peripheral inflammatory process, and we have previously observed an early systemic interleukin 6 (IL-6) release following whole-body irradiation. Besides, we have demonstrated an early decrease of rat or primate brain acetylcholinesterase (AChE) activity a gamma exposure. The object of the present study is to find possible IL-6 systemic effects on the brain AChE activity. We show that, though intravenous (i.v.) or intra-cerebro-ventricular (ICV) injection of IL-6 can induce a drop in rat brain AChE activity, this cytokine induces only a slight decrease of the AChE release in cultured brain cells. (author). 3 refs.

  12. Activité antérieure – Évaluation faite par le CRDI à la Conférence du ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 avr. 2016 ... Mini soap operas foster financial education and inclusion of women in Peru. Having little or no savings can be devastating for poor families, especially in times of crisis. View moreMini soap operas foster financial education and inclusion of women in Peru ...

  13. Theoretical physics department, june 96-may 98 status report; Service de physique theorique, rapport d`activite juin 1996 - mai 1998

    Energy Technology Data Exchange (ETDEWEB)

    1998-12-31

    This status report presents the work done at SPhT (service de physique theorique, CEA) from june 96 to may 98. The topics have been classified into 3 themes: - statistical physics, - mathematical physics and field theory, - astrophysics, nuclear and particle physics. In the first theme relevant contributions have been made to phase transitions, correlated electronic systems, polymers, membranes, proteins, disordered systems and out of equilibrium processes. The second theme collects various works, some works dedicated to aleatory matrices and quantum chaos aim at developing investigation methods, other works like cord theories use these methods. As for the third theme, the recent discovery of the fluctuations of background cosmological radiation has fomented a great activity at SPhT. Mean field approximation and effective strength have been the starting point of research in the field of nuclear structure. High energy quantum chromodynamics has been applied to deep inelastic scattering where the proton structure is studied through electron-proton collisions. A list of all the publications made by SPhT is given. (A.C.)

  14. Annual report 2000. Department of wastes disposal and storage; Rapport annuel d'activite 2000. Departement d'Entreposage et de Stockage des Dechets

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    This annual report presents the missions, the organization, the researches progress, the events, the publications and the personnel formation of the Department of wastes disposal and storage in the year 2000, one of the CEA fuel cycle Direction. (A.L.B.)

  15. Hydrogen activities in the European Union work-programme; Activites liees a l'hydrogene dans le programme de travail de l'Union Europeenne

    Energy Technology Data Exchange (ETDEWEB)

    Bahbout, A.; Tartaglia, G.P. [Joint Research Centre, IHCP, Ispra (Italy)

    2000-07-01

    Growing concern over urban air pollution, global climatic change allegedly caused by rising levels of greenhouse gases and future energy security requirements demand a solution: a clean and sustainable energy supply. Hydrogen is seen as a promising clean fuel when integrated into a wide and long-term vision in which it provides, in parallel with electricity, a secondary energy carrier, ultimately derived from renewable energy sources. Europe has been a pioneer in promoting the wider use of hydrogen. Already in 1991, various demonstration projects were started with funds under the Euro-Quebec Hydro-Hydrogen Pilot Project (EQHPP). The European Commission, the European Industry, the Government of Quebec and the Canadian Industry made resources available so that hydrogen, from surplus in Canada, could be applied in various end-use technologies. Under this project, about thirty European industry/research centres/universities have been involved, working on a comprehensive set of hydrogen applications/uses. Innovative public transportation means (city buses, boats) equipped with internal combustion engines (ICE) or fuel cells and using either liquid or compressed hydrogen were put into demonstration service. Cogeneration (CHP) projects based on the use of phosphoric acid fuel cells (PAFC) were realised. In joint programs, aviation combustor test activities were carried out by Daimler Benz Aerospace, Airbus Industries and Pratt and Whitney. Investigation of hydrogen storage in zeolites, carbon and nano-tubes were started. Tests on compressed hydrogen gas storage tanks were also conducted. All these projects are now terminated. As intended, the initial momentum set by the EQHPP project has now been replaced by many private initiatives, especially in Germany. Only one specific project funded by the European Commission, the European Integrated Hydrogen Project (EIHP) remains. In the EIHP project, several companies which designed and constructed prototypes and demonstration vehicles using hydrogen have joined forces with the aim of improving the coordination of licensing and approval procedures needed for putting hydrogen powered vehicles on the road. The 5. Framework Programme eventually includes hydrogen activities, even if no specific reference is made to hydrogen, following the policy of the Commission to provide directions and fund research according to broad objectives. Hydrogen appears integrated in the wider context of the thematic lines of the work programme. In the programme 'Energy, Environment and Sustainable Development', the activities are concerned with the generation of electricity, and/or heat, with reduced CO{sub 2} emissions from biomass or other fuels. Moreover, development, demonstration, integration of new and renewable energy sources into energy systems is foreseen. Specifically for fuel cells: independent evaluation of their performance against standardised measurement procedures, study of materials involved and possibilities for improvement (abstract only). (authors)

  16. Activité antérieure – Améliorer la recherche sur les systèmes de ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 avr. 2016 ... M. Félix Boa Yapo, directeur général de la santé de la Côte d'Ivoire, a ouvert la séance de consultation, en compagnie de Stanislas Kambour, directeur des systèmes de recherche et de renseignements sur la santé de l'OOAS, et de Chantal de Varennes, ambassadrice du Canada auprès de la République ...

  17. Annual report 1999. Department of wastes disposal and storage; Rapport annuel d'activite 1999. Departement d'Entreposage et de Stockage des Dechets

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    This annual report presents the organization, the personnel, the collaborations, the scientific researches and the publications of the Department of wastes disposal and storage of the CEA. A thematic presentation of the research and development programs is provided bringing information on the liquid effluents processing, the materials and solid wastes processing, the wastes conditioning, the characterization, the storage, the radionuclides chemistry and migration, the dismantling and the environment. (A.L.B.)

  18. Activité des extraits de six variétés de piment (Capsicum) utilisés en ...

    African Journals Online (AJOL)

    SARAH

    31 oct. 2014 ... de 6 variétés de piments commercialisées sur le marché d'Abidjan ..... dépend de plusieurs facteurs dont le mode d'extraction et .... International Journal Biology Chemical Sciences ... pour produire le manque d'accès aux.

  19. Commission for Energy regulation (CRE) - Activity report june 2008; Commission de regulation de l'energie (CRE) - Rapport d'activite juin 2008

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    CRE is the French commission for energy regulation. CRE's remit is to assist in ensuring the proper operation of the electricity and natural gas markets for the benefit of the end-user. In particular, CRE ensures that the conditions of access to electricity and natural gas transmission and distribution systems do not hinder the development of competition. It monitors, for the electricity and natural gas sectors, all transactions made between suppliers, traders and producers, all transactions made on the organised markets and cross-border trading. It ensures that suppliers, traders and producers propose offers that are consistent with their financial and technical constraints. It monitors the implementation of and compliance with regulations giving consumers the right to choose their supplier in a competitive market, and allowing new suppliers to enter the market. This document is the 2008 activity report of CRE. Content: A - How CRE works: CRE regulatory authority and organisation: Powers, Organisation; Budget resources; Personnel; B - The Standing Committee for Dispute Settlement and Sanctions (CoRDiS) activity: Admissibility, Authority; C - Building a single European energy market: Overview; Organisation and coordination of the main European regulators (Work carried out collectively by European regulators, Regulator organisation and development, CRE's relations with European Community institutions, Development of CEER activities outside the European Union); CRE's European activities (The contribution of European regulators to the Third Energy Package, Integration of gas markets, Integration of electricity markets, Operation of the European interconnected electricity grid and security of supply, Opening up markets to benefit consumers); European Community activities (The European Commission's proposals for the internal energy market: the Third Energy Package, The European Commission's proposals for fighting climate change: the Climate Package, Infringement proceedings initiated against France by the European Commission); D - CRE action at national level: Regulation of systems and infrastructures (General information, Electricity grids, Natural gas networks and other infrastructures); Electricity and natural gas markets (Changes in the regulatory and legislative context, Electricity markets, Natural gas markets, Monitoring open market operations); Support measures: electricity generation, vulnerable customers and TaRTAM (Supporting cogeneration and renewable energy sources, Public electricity service costs, Collection of public electricity service contributions (CSPE), TaRTAM-related costs, Costs related to the special solidarity tariff for natural gas supply); E - Appendices: Glossary, Acronyms, Council of European Energy Regulators, Units and conversions.

  20. Commission for Energy regulation (CRE) - Activity report June 2005; Commission de regulation de l'energie (CRE) - Rapport d'activite juin 2005

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-07-01

    CRE is the French commission for energy regulation. CRE's remit is to assist in ensuring the proper operation of the electricity and natural gas markets for the benefit of the end-user. In particular, CRE ensures that the conditions of access to electricity and natural gas transmission and distribution systems do not hinder the development of competition. It monitors, for the electricity and natural gas sectors, all transactions made between suppliers, traders and producers, all transactions made on the organised markets and cross-border trading. It ensures that suppliers, traders and producers propose offers that are consistent with their financial and technical constraints. It monitors the implementation of and compliance with regulations giving consumers the right to choose their supplier in a competitive market, and allowing new suppliers to enter the market. This document is the 2005 activity report of CRE. Content: A - The opening of the markets in France and in Europe: The opening of the markets one year after 1 July 2004 (An especially important step, Electricity and gas: a common framework with structural differences, The coexistence of market prices and regulated tariffs); The European texts of 26 June 2003 (Texts to give new impetus, Texts to harmonize the role and powers of national regulators, Texts to guarantee the independence of system operators, Texts to ensure transparent and non-discriminatory access to networks, Texts providing for strengthening of interconnections); The outlook for 2007, a fully open market (1 July 2007: a date set by the directives, Priority given to informing and protecting consumers); B - Regulation of the natural gas market: The gas market in the European context (Europe's dependency on imports is increasing, Gas prices increased considerably across the whole of Europe in 2004, The European gas scene continues to be dominated by a small number of players, Gas infrastructures need to be developed in Europe, The new European texts specify the competitive framework); Opening of the gas markets (Opening of the markets in European Union countries, Opening of the French gas market); CRE: regulator of the French gas market (Major obstacles to efficient operation of the French gas market were raised during 2004 and early 2005, Changes in natural gas regulated sales tariffs, Regulated infrastructure tariffs and utilisation conditions, Gaz de France and Total commitments made to the European Commission, Opening of the non-household market on 1 July 2004 and work of the 2004 Gas Working Group (GTG 2004), Audits of the un-bundled accounts of integrated gas operators, CRE's opinions on the regulatory texts, Codes of good conduct for network operators); The work programme (Independence of network operators, Feedback, Preparation of total opening on 1 July 2007, Preparation of the new tariffs for use of regulated gas infrastructures, Comparison of offers of access to storage facilities in Europe, Distribution system operators' investment criteria, Works in the European context); C - Regulation of the electricity market: actors and electricity markets; access to public power networks; the public electric utility in the regulated market; D - The working of CRE: How CRE exercises its jurisdiction (A working method based on responsiveness, consultation and transparency, Disputes solved help to guarantee the right of access to networks for consumers, suppliers and producers, Control and sanction powers); Tools (Professionalism and a multi-disciplinary approach, Some resources remain insufficient to meet the deadline for total opening of the energy markets on 1 July 2007, Independence and budgetary structure); European and international activity (Relations with European Union institutions, Relations with other regulators, Other international relations); E - Glossary, Acronyms, Units and conversions, Index of insets, tables and figures, Council of European Energy Regulators (CEER)

  1. Activité antérieure – Évaluation faite par le CRDI à la Conférence du ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 avr. 2016 ... Le groupe d'experts a invité des collaborateurs, notamment Miguel Jaramillo, du groupe pour l'analyse du développement, et Natalia Aquilino, du Centro de Implementación de Políticas Públicas para la Equidad y el Crecimiento (Centre de mise en oeuvre des politiques publiques pour l'équité et la ...

  2. Direction in charge of the management of wastes. 1998 activity report; Direction chargee de la gestion des dechets. Rapport d'activite 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    This document is the 1998 activity report of the direction in charge of the management of radioactive wastes (DGD) of the French atomic energy commission (CEA). The role of the DGD is the elimination of radioactive wastes, the management of spent fuels, the cleansing and dismantling of shut-down and decommissioned installations at the CEA. This report summarizes the highlights of the 1998 year: the cleansing plan of the CEA (current policy, plan scheme, quality assurance, financing, public relation); the radioactive wastes (general considerations, management of liquid and solid effluents, management of sealed sources, modernization of equipments and new projects, relations with the Andra, studies in progress); the spent fuels (general considerations, solutions, long-term storage); the dismantling of shut-down installations (general considerations about decommissioning, dismantling actions at the CEA, main works performed, dismantling actions in progress); the management of wastes at the CEA-direction for military applications (DAM); the cleansing of the CEA-Marcoule site; 1998 status of the management of wastes (appendix). (J.S.)

  3. Organizarea şi finanţarea activităţii de cercetare într-o companie transnaţională. Studiu de caz

    Directory of Open Access Journals (Sweden)

    Henriette Szilágyi

    2012-03-01

    Full Text Available Globalization, defined as an international system based on: the integrationist trend, the interconnection between markets, nation-states and technologies to an unprecedented level, is founded on two key global players – international economic organizations and transnational corporations. At the beginning of XXI century, transnational companies are regarded as one of the biggest challenges for the current economic international order, because their decisions influences a large national economies. Constantly, during the last years Lafarge has been classified among "The Most Sustainable 100 Corporations in the world." Through its major research center, specialized in building materials, Lafarge places innovation on the top of its priorities, in order to ensure sustainable construction and architectural creativity.

  4. L’activité peut-elle être objet d’ “analyse”? = A atividade pode ser objeto de “análise”?

    Directory of Open Access Journals (Sweden)

    Schwartz, Yves

    2015-01-01

    Full Text Available Dentro do quadro de uma confrontação entre diversos pesquisadores de ciências humanas sobre o conceito de atividade, este texto traça, primeiramente, uma breve história desse conceito tal qual a abordagem ergológica tem progressivamente construído, a partir da história filosófica desse conceito e dos encontros que os protagonistas dessa abordagem puderam fazer há mais de trinta anos. Com o conceito de atividade como dramática de uso de um corpo-si, uma visão antropológica é gradualmente imposta: a atividade como renegociação permanente das normas geradas e/ou instituídas na história aparece como a forma especificamente humana do viver, o trabalho sendo dentro dessa forma um lugar particularmente denso de debates com essas normas em que o corpo-si é a base. O texto propõe então aprofundar as implicações do conceito de debate de normas, como fabricador de história, como reproblematizando o campo da epistemologia, como convocando um universo axiológico no coração de todo agir individual e coletivo. Sendo abordado assim, esse conceito desloca o problema das relações micro/macro, determinações sociais / criatividades singulares, diversos limites temporais em que temos de tratar esses debates, níveis inumeráveis onde eles se representam no seio do nosso corpo-si. Este texto conclui disso que, se o conceito de atividade é assim abordado, a ideia que se pode ter dos “métodos de análise” parecem pouco aceitáveis. Por outro lado, com a ajuda de todo método que revela a complexidade do trabalho, o esforço de análise do trabalho como atividade nos parece a ser desenvolvido, para dar visibilidade e futuro às reservas de alternativa que todo agir humano produz sem pausa

  5. Activité antérieure – Améliorer la recherche sur les systèmes de ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 avr. 2016 ... L'Organisation ouest-africaine de la santé (OOAS) a tenu une séance de consultation régionale de trois jours auprès de plus de 50 intervenants provenant de 20 établissements. L'objectif consistait à éclairer le prochain plan stratégique quinquennal afin de renforcer la recherche en santé dans l'ensemble ...

  6. De l'empowerment à l'engagement du client sur les plateformes en ligne : ou comment favoriser l'activité des clients sur Internet

    OpenAIRE

    Morrongiello , Caroline

    2014-01-01

    Topic of interest : With the advent of Web 2.0, the interpersonal influence now includes its extension in cyberspace with electronic word of mouth. Therefore, the Internet deeply modify relationships between consumer and the brand and led to a redefinition of the relationship brand -consumer. Web 2.0 appears as a great tool rebalancing powers between them. However, beyond this, we wonder about the asymmetry between consumer and brand in these conversations: is marketing willing to play the ga...

  7. Emission d'effluents gazeux lors du compostage de substrats organiques en relation avec l'activité microbiologique (nitrification/dénitrification)

    OpenAIRE

    Yulipriyanto , Hiéronymus

    2001-01-01

    Co-tutelle avec l'Indonesie; The awakening of the importance of the waste management and the safeguarding of resources led actors of the agricultural world more and more to be interested in composting as a mode of waste processing of breeding effluents or mud of wastewater treatment plants. The ways of use for these substrates, spreading, composting or other, must thus be compared. One knows indeed that agriculture is responsible for a significant share of the ammonia (NH3) and nitrous oxide ...

  8. Commission for Energy regulation (CRE) - Activity report june 2008; Commission de regulation de l'energie (CRE) - Rapport d'activite juin 2008

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    CRE is the French commission for energy regulation. CRE's remit is to assist in ensuring the proper operation of the electricity and natural gas markets for the benefit of the end-user. In particular, CRE ensures that the conditions of access to electricity and natural gas transmission and distribution systems do not hinder the development of competition. It monitors, for the electricity and natural gas sectors, all transactions made between suppliers, traders and producers, all transactions made on the organised markets and cross-border trading. It ensures that suppliers, traders and producers propose offers that are consistent with their financial and technical constraints. It monitors the implementation of and compliance with regulations giving consumers the right to choose their supplier in a competitive market, and allowing new suppliers to enter the market. This document is the 2008 activity report of CRE. Content: A - How CRE works: CRE regulatory authority and organisation: Powers, Organisation; Budget resources; Personnel; B - The Standing Committee for Dispute Settlement and Sanctions (CoRDiS) activity: Admissibility, Authority; C - Building a single European energy market: Overview; Organisation and coordination of the main European regulators (Work carried out collectively by European regulators, Regulator organisation and development, CRE's relations with European Community institutions, Development of CEER activities outside the European Union); CRE's European activities (The contribution of European regulators to the Third Energy Package, Integration of gas markets, Integration of electricity markets, Operation of the European interconnected electricity grid and security of supply, Opening up markets to benefit consumers); European Community activities (The European Commission's proposals for the internal energy market: the Third Energy Package, The European Commission's proposals for fighting climate change: the Climate Package, Infringement proceedings initiated against France by the European Commission); D - CRE action at national level: Regulation of systems and infrastructures (General information, Electricity grids, Natural gas networks and other infrastructures); Electricity and natural gas markets (Changes in the regulatory and legislative context, Electricity markets, Natural gas markets, Monitoring open market operations); Support measures: electricity generation, vulnerable customers and TaRTAM (Supporting cogeneration and renewable energy sources, Public electricity service costs, Collection of public electricity service contributions (CSPE), TaRTAM-related costs, Costs related to the special solidarity tariff for natural gas supply); E - Appendices: Glossary, Acronyms, Council of European Energy Regulators, Units and conversions.

  9. Efectul unor plante medicinale asupra profilului lipidic și al activității enzimelor hepatice în comparație cu statinele

    Directory of Open Access Journals (Sweden)

    Mohamed, Erieg Abdul Wahab

    2017-12-01

    Full Text Available In the recent decades, hyperlipidemia has considerably increased with the development of machine life. It has been accompanied by diseases such as hypothyroidism, liver and kidney diseases, diabetes, chronic kidney disease, as well as obesity and can cause complications such as atherosclerosis, hypertension, increased risk of stroke, and fatty liver disease. Currently, the prevalence of hyperlipidemia and its related diseases has increased in developing as well as developed countries. In the most cases, drug therapy is needed to control and treat hyperlipidemia. However, problems related to conventional drugs including adverse events (digestive complications such as indigestion, bloating, constipation along with neurologic complications such as myopathy and neuralgia. In addition to the hepatotoxicity and nephrotoxicity. Growing rate of hyperlipidemia and its related complications despite the availability of these drugs dissatisfaction of patients with these drugs, emergence of complications induced by their prolonged use, as well as high drug costs have increased tendency to complementary and alternative treatments for the control and treatment of this disease. In this regard, traditional medical information of each region as well as identification and utilization of medicinal plants of that area may have an important role in identifying new medicines with plant origin for alternative treatments. In addition to endogenous antioxidants, there are exogenous antioxidants. The beneficial effects of foods have been linked to the presence of bioactive compounds and other nutrients. Examples of biomolecules that have antioxidant potential are phenolic compounds such as isoflavones, phenolic acids, catechins, chlorogenic acids, anthocyanins, and terpenes. Thus, plants have been described as an alternative to the development of new drugs applied to treatment of many diseases such as hypercholesterolemia, ulcers, depurative blood and cancer.

  10. Direction in charge of the management of wastes. 1998 activity report; Direction chargee de la gestion des dechets. Rapport d'activite 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    This document is the 1998 activity report of the direction in charge of the management of radioactive wastes (DGD) of the French atomic energy commission (CEA). The role of the DGD is the elimination of radioactive wastes, the management of spent fuels, the cleansing and dismantling of shut-down and decommissioned installations at the CEA. This report summarizes the highlights of the 1998 year: the cleansing plan of the CEA (current policy, plan scheme, quality assurance, financing, public relation); the radioactive wastes (general considerations, management of liquid and solid effluents, management of sealed sources, modernization of equipments and new projects, relations with the Andra, studies in progress); the spent fuels (general considerations, solutions, long-term storage); the dismantling of shut-down installations (general considerations about decommissioning, dismantling actions at the CEA, main works performed, dismantling actions in progress); the management of wastes at the CEA-direction for military applications (DAM); the cleansing of the CEA-Marcoule site; 1998 status of the management of wastes (appendix). (J.S.)

  11. Abondance et distribution des grands singes et des activités humaines dans le Parc National de Campo Ma'an, Sud Cameroun

    Directory of Open Access Journals (Sweden)

    Tchamba, MN.

    2015-01-01

    Full Text Available Abundance and Distribution of Great Apes and Human Activities in the Campo Ma'an National Park, South Cameroon. The Campo Ma'an National Park (CMNP located in South Cameroon, has a rich biodiversity and is part of the priority areas of the Central Africa Network of Protected Areas. In order to improve the knowledge on great apes in this park, an inventory was conducted between October and November 2011 using the linear transect technique. In total, 103 transects, 2.5 km each, were established and surveyed. The results of the study confirm the presence of the two species of great apes in the CMNP, chimpanzees (Pan troglodytes troglodytes and gorillas (Gorilla gorilla gorilla. The inventory suggested that chimpanzees had a nest density of 0.158 nest∙km-2, allowing an estimated density of 0.555 indiv.km-2, for a total population estimated at 1466 animals weaned throughout the Park. Chimpanzees were mainly located in the northern part of the Park, near the hilly area of Niété. Gorillas had an estimated average encounter rate of 1.080 sign per km. They also appeared to be more concentrated around the area of Niété. Poaching was the preferred type of human activity in the Park and was located in the northern part of the Park. It is strongly recommended to implement the results of this study by performing regular surveys, about every 3 months, in order to monitor the demography of the great apes populations in the Park.

  12. The storage center of short life low and intermediate level radioactive wastes; Le centre de stockage des dechets de faible et moyenne activite a vie courte

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    Situated at 50 km of Troyes, the Aube Center was opened in 1992 in order to take over from the Manche Center, for the surface storage of low life low and intermediate level radioactive wastes. It offers an answer to manage safely theses wastes at an industrial scale during 50 years. (A.L.B.)

  13. French Committee of Butane and Propane. 2006 activity report; Comite francais du butane et du propane. Rapport d'activite 2006

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    This document presents the 2006 highlights of the French LPG fuels industry: 1 - presentation of the CFBP association and promotion of the LPG industry; 2 - share of LPG fuels in the French energy mix; 3 - improvement of energy efficiency in the residential sector; 4 - advantages of LPG fuels; 5 - safety aspects. (J.S.)

  14. Extension nationale de la méthode AIGA. Amélioration de la réactivité du modèle

    OpenAIRE

    Organde, D.; Javelle, P.

    2014-01-01

    / Pour le développement de son système d'anticipation des crues soudaines, le SCHAPI (Service Central d'Hydrométéorologie et d'Appui à la Prévision des Inondations) souhaite s'appuyer sur le système AIGA développé par Irstea (anciennement Cemagref). Le système AIGA a fait l'objet d'évaluations et de développements récents en vue de l'extension de son domaine d'application de l'arc méditerranéen à la France entière (Caseri, 2012, Organde, 2013). Deux modèles hydrologiques ont été calés, ré...

  15. The Aube plant. 2003 status; Centre de l'Aube. Bilan 2003. Centre de stockage de dechets de faible et moyenne activite

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-09-01

    This brochure summarizes one year of exploitation of the Aube storage center for low- and medium-level radioactive wastes. The status shows a more important activity in 2003 with respect to 2002 with higher volumes of stored wastes, more analyses performed and more visitors. Content: 1 - 2003 key data (transport and receipt of wastes, storage and processing, environment monitoring); 2 - highlights: exploitation, security/safety; 3 - centre life: environment safety, prevention and monitoring, maintenance and recent works, economic impact, communication; 4 - evolution of the centre. (J.S.)

  16. Impact of drilling activities in warm sea: recolonization capacities of seabed; Impact des activites de forage en mer chaude: capacites de recolonisation des fonds marins

    Energy Technology Data Exchange (ETDEWEB)

    Dalmazzone, Ch.; Blanchet, D. [Institut Francais du Petrole (IFP), 92 - Rueil-Malmaison (France); Lamoureaux, S.; Dutrieux, E.; Durieu, J. [CreOcean, 34 - Montpellier (France); Camps, R. [Total, 64 - Pau (France); Galgani, F. [Ifremer, 34 - Sete (France)

    2004-07-01

    Due to large constraints in environmental regulations, discharge of drill cuttings at sea has to be controlled. It is therefore necessary to get basic information in order to select environment friendly drilling fluids. The present study was intended to assess the impact of cuttings, the capacity of regeneration of the ecosystem and the processes of recolonization of sea-beds. In a first phase, standardized (OSPAR) and experimental toxicity tests, aerobic and anaerobic degradation measurements and lixiviation tests were performed on various types of muds and cuttings (containing diesel oil, two different paraffinic oils, and glycol) in laboratory conditions. In a second phase, the most suitable measurements were taken within the framework of an in situ experiment at a discharge site in Congo (Africa). Cuttings discharge began in November 1993 and ended in April 1999. Together with this survey, a complete analysis of benthos was per formed eight years after the beginning of cuttings discharge. The preliminary results demonstrated: - the zone of extension of the toxicity inducing benthos modifications was less than a few hundred meters around the discharge site; - original fauna was replaced by a more specific fauna. In the more general context of the environmental constraints in the oil industry, our work demonstrated the containment of the impacted zones, the absence of significant risks of modification of the adjacent ecosystems and the possible application to other discharge sites. (authors)

  17. Aperçu sur la composition phytochimique et les activités biologiques de Retama monosperma L Bois. (Fabacée

    Directory of Open Access Journals (Sweden)

    BELMOKHTAR Zoubir

    2016-06-01

    Full Text Available An overeview on phytochemical composition and biological activities of Retama monosperma L Bois. (Fabaceae The phytochemical study of Retama monosperma is little discussed in Algeria. This article is a summary of the data and scientific articles published on these phytochemicals properties. In traditional herbal medicine, this species is considered toxic in high doses, but in small doses, it is used as an emetic, purgative, vermifuge, vulnerary, sedative, anthelmintic and antiseptic Alkaloids, flavonoids and terpene compounds are the main phytochemicals known in Retama monosperma. In the last five years, several scientific studies have been published to explain the activity of the extracts of this species, particularly anti - inflammatory, anticancer and antioxidant.

  18. French Committee of Butane and Propane. 2005 activity report; Comite francais du butane et du propane. Rapport d'activite 2005

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    This document presents the 2005 highlights of the French LPG fuels industry: 1 - presentation of the CFBP association and promotion of the LPG industry; 2 - information about the LPG fuels advantages; 3 - LPG market; 4 - CFBP's commitments for end-users, professionals and public authorities: energy efficiency improvement, environment protection, energy supply of French rural towns, safety improvements. (J.S.)

  19. Activité larvicide sur Anopheles gambiae Giles et composition chimique des huiles essentielles extraites de quatre plantes cultivées au Cameroun

    Directory of Open Access Journals (Sweden)

    Tchoumbougnang F.

    2009-01-01

    Full Text Available Larvicidal activity against Anopheles gambiae Giles and chemical composition of essential oils from four plants cultivated in Cameroon. The chemical composition of the essential oils obtained by hydrodistillation of dry leaves from Cymbopogon citrates (DC. Stapf, Ocimum canum Sims, Ocimum gratissimum L. var 'gratissimum' L. and Thymus vulgaris L. cultivated in Cameroon were analyzed and their larvicidal activity against fourth instar larvae of Anopheles gambiae Giles were determined. The yields of extraction indicate that T. vulgaris (0.95% was richer in essential oil than C. citratus (0.67%. O. canum and O. gratissimum have approximately the same content in volatile constituents (0.59% and 0.60%, respectively. The analyses by GC and GC/MS showed that these oils are monoterpenic (86.8-97.4%. Oxygenated monoterpenes predominate in C. citratus and O. canum (81.6% and 68.9%, respectively while O. gratissimum oil contains a majority of monoterpene hydrocarbons (61.0%. T. vulgaris is characterized by the same proportion of monoterpene hydrocarbons (45.6% and oxygenated monoterpenes (48.9%. The main compounds found in the essential oil of C. citratus are acyclic monoterpenes such as geraniol (15.6%, geranial (39.3%, neral (21.9% and myrcene (14.0%. The essential oil of T. vulgaris is characterized by p-menthane structures given by thymol (40.1%, p-cymene (23.4% and γ-terpinene (15.1%; p-cymene (32.1% and thymol (24.3% were also the constituents quantitatively important in O. gratissimum essential oil while linalool (56.3% and limonene (10.9% were predominant in O. canum. Bioassay test done by the World Health Organization standard protocol revealed that these essential oils have remarkable larvicidal properties as they could induce 100% mortality in the larvae of A. gambiae at the concentration of 100 ppm for C. citratus, 200 ppm with T. vulgaris, 350 ppm for O. gratissimum and 400 ppm for O. canum. Their LC50 and LC80 show the same reactivity order. The essential oil of C. citratus was found to be the most efficient, with respective values of: LC50 = 18 ppm and LC80 = 25 ppm.

  20. James Bay Mercury Committee report of activities. Rapport d'activites du Comite de la Baie James sur le mercure

    Energy Technology Data Exchange (ETDEWEB)

    1990-01-01

    The James Bay Mercury Committee has the mandate to oversee the implementation of the research, monitoring, and remediation programs related to the mercury pollution problem associated with hydroelectric developments in the James Bay region of Quebec. A summary of activities for 1990-91 is presented. Monitoring programs conducted during the year included studies of fish in the western part of the LaGrande complex, in which a decrease in Hg levels first noted in 1990 persisted; and a hair sampling and analysis program conducted on high-risk groups in the James Bay Cree population, which noted a continuing downward trend in Hg levels although this trend was not statistically significant. Research programs included a study of the influence of environmental factors on the release of Hg from vegetation and soil flooded by hydroelectric reservoirs. Mercury research in 1990 allowed confirmation of the fact that a higher Hg uptake in certain fish downstream from the LaGrande 2 station was related to a change in their feeding habits. Other studies were conducted on the effects of methylmercury exposure on health, sociocultural and economic aspects, and mitigative measures. Total expenditures for the year were just over $2 million. 8 refs., 3 figs., 2 tabs.

  1. The exposures to natural radioactivity as a result of human activities; Les expositions a la radioactivite naturelle du fait des activites humaines

    Energy Technology Data Exchange (ETDEWEB)

    Rannou, A.; Dupuis, M.; Bottollier-Depois, J.F.; Leprieur, F.; Pasquier, J.L.; Doremus, P.; Pierre, J.P. [Institut de Radioprotection et de Surete Nucleaire, 92 - Clamart (France); Bernhard, S. [ALGADE, 87 6 Bessines sur Gartempe (France); Delporte, V. [Drection Generale de la Surete Nucleaire et de la Radioprotection, 75 - Paris (France); Servent, J.P. [Institut National de Recherche et de Securite, 75 - Paris (France); Marchand, D. [DRASS Bretagne (France); Dupuis, M.; Bottollier-Depois, J.F.; Leprieur, F.; Pasquier, J.L.; Doremus, P.; Pierre, J.P. [Institut de Radioprotection et de Surete Nucleaire, 92 - Clamart (France); Surbeck, H. [Neuchatel Univ. (Switzerland); Degrange, J.P. [Centre d' Etude sur l' Evaluation de la Protection dans le Domaine Nucleaire, 92 - Fontenay aux Roses (France)

    2005-07-01

    The new regulation in matter of radiation protection, coming from the transposition of the European directive 96/29/EURATOM modifies the code of the public health and the labour code. The exposures to natural radioactivity by the very fact of human activities are the object of specific dispositions. These new dispositions apply to professional areas that were, until now, little concerned by the regulation relative to ionizing radiations. The S.F.R.P., in relationship with the Minister in charge of labour, and the A.F.T.I.M. (French organisation of safety technicians and engineers and labour physicians) organizes two days of information and exchange on the subject. This meeting concerns industry and research departments but also inspectors and labour physicians and other actors having a look on the risk management in societies. After some reminder on radioactivity and its effects, the regulation and the global risk management on working place, several actual examples are presented, covering the different known situations of exposure to the natural radioactivity ( radon, cosmic rays, use of radioactive material in an industrial process, production of radioactive waste). The days finish by a round table conference on the stakes and practical entailment of the new regulation. (N.C.)

  2. Monitoring of the radiological environmental impact of the AREVA site of Tricastin; Suivi de l'impact radiologique environnemental des activites du site AREVA du Tricastin

    Energy Technology Data Exchange (ETDEWEB)

    Mercat, C.; Brun, F.; Florens, P.; Petit, J. [AREVA NC Pierrelatte, Direction surete environnement du site du Tricastin, 26 (France); Garnier, F. [EURODIF Production, Direction qualite securite surete environnement, 26 (France); Devin, P. [AREVA NC Pierrelatte, Direction surete, sante, securite, environnement, 26 (France)

    2010-06-15

    Set up at the beginning of the site's operations, in 1962, the monitoring of the radiological environmental impact of the AREVA site of Tricastin has evolved over time to meet more specifically the multiple objectives of environmental monitoring: to prove the respect of the commitments required by the authorities, to be able to detect a dysfunction in the observed levels, to enable the assessment of impacts of industrial activities, to ensure the balance between environmental quality and the use made by the local population and to inform the public of the radiological state of the environment. Thousands of data were acquired on the radioactivity of all environmental compartments as well as on the functioning of local ecosystems. Today, the Network of Environmental Monitoring of AREVA Tricastin goes beyond the requirements of routine monitoring to provide innovative solutions for monitoring the radioactivity (especially for uranium) in the environment. (author)

  3. Activité antifongique des huiles essentielles de Thymus bleicherianus Pomel et Thymus capitatus (L. Hoffm. & Link contre les champignons de pourriture du bois d'oeuvre

    Directory of Open Access Journals (Sweden)

    Amarti F.

    2008-01-01

    Full Text Available Antifungal activity of the Thymus bleicherianus Pomel and Thymus capitatus (L. Hoffm. & Link essential oils againstwood-decay fungi. Essential oils and their constituents have a long history of applications as antimicrobial agents, but theiruse as wood preservatives has rarely been reported. This study deals with the antifungal activity of two medicinal and aromaticplants essential oils of the Moroccan flora against four wood-decay fungi, in order to find new bioactive natural products. Thechemical composition of essential oils extracted by hydrodistillation from the aerial parts of Thymus bleicherianus Pomel andThymus capitatus (L. Hoffm. & Link was analyzed by GC and GC-MS. The major components of T. bleicherianus oil wereα-terpinene (42.2% and thymol (23.9%. Carvacrol (70.92% was the predominant constituent in the essence of T. capitatus.Minimal inhibitory concentrations of the essential oils added to malt agar medium in defined concentrations were determinedby a screening test with the agar dilution method. The oils, object of the survey, showed a strong antifungal activity againstall tested fungi.

  4. Activité antérieure – Le chômage chez les jeunes, un problème d ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    7 juil. 2016 ... Gordon Betcherman, professeur à l'École de développement international et mondialisation de l'Université d'Ottawa et coauteur du Rapport sur le développement dans le monde 2013 : Emplois publié par la Banque mondiale, a évoqué la nécessité d'enrichir les connaissances au sujet du chômage chez ...

  5. Activité antérieure – En Inde, le système pénal manque de services ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 avr. 2016 ... L'application d'une loi est rarement suffisante pour que justice soit faite. Voilà le message de Flavia Agnes, avocate qui lutte pour les droits des femmes au Majlis Legal Centre, à Mumbai, à l'occasion d'une conférence tenue au Bureau régional de l'Asie du CRDI le mercredi 18 février 2015. Son exposé ...

  6. Commissioning of the very low level radioactive waste disposal facility; Mise en service du Centre de stockage de dechets de tres faible activite

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-08-01

    This press kit presents the solution retained by the French national agency of radioactive wastes (ANDRA) for the management of very low level radioactive wastes. These wastes mainly come from the dismantling of decommissioned nuclear facilities and also from other industries (chemical, metal and other industries). The storage concept is a sub-surface disposal facility (Morvilliers center, Aube) with a clay barrier and a synthetic membrane system. The regulatory framework, and the details of the licensing, of the commissioning and of the environment monitoring are recalled. The detailed planing of the project and some exploitation data are given. (J.S.)

  7. The very-low activity waste storage facility. A new waste management system; Le centre de stockage des dechets de tres faible activite. Une nouvelle filiere de gestion

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    Very-low activity wastes have a radioactivity level close to the natural one. This category of waste is taken into consideration by the French legislation and their storage is one of their point of achievement. This document gives a complete overview of the principles of storage implemented at the storage center for very-low activity wastes (CSTFA) sited in the Aube departement in the vicinity of the storage center for low- and intermediate activity wastes: storage concept, wastes confinement, center organization, environmental monitoring. (J.S.)

  8. Commission of energy regulation. 2004 activity report; Commission de regulation de l'energie. Rapport d'activite 2004

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    The commission of energy regulation (CRE) is an independent administrative authority in charge of the control of the operation of gas and electricity markets. This document is the fifth activity report of CRE and covers the July 1, 2003 - June 30, 2004 period, which corresponds to the era of opening of energy markets as a consequence of the enforcement of the June 26, 2003 European directive. In the framework of the stakes made by energy markets liberalization, this document presents the situation of the gas and electricity markets during this period (European framework, regulation of both markets, public utility mission..) and describes CRE's means for the monitoring of these markets. (J.S.)

  9. Former les enseignants de français par l’activité de création numérique dialoguée

    Directory of Open Access Journals (Sweden)

    Frédérique Longuet

    2014-12-01

    Full Text Available L’objectif de cet article consiste à montrer qu’il est possible et souhaitable d’organiser une approche «actionnelle» de la formation des enseignants de Français Langue Étrangère. Notre réflexion s’appuie sur une expérimentation auprès d’étudiants du master Enseignement-Éducation-Médiation 1er degré (IUFM Paris Sorbonne. Après un rapide rappel de l’optique institutionnelle en formation initiale (autour de l’approche par tâche scolaire, nous présenterons le construit théorique qui sous-tend l’approche alternative que nous proposons. Nous verrons, à partir de quelques extraits de corpus, comment les étudiants construisent ensemble de nouvelles compétences professionnelles. Nous présenterons aussi les effets produits sur les élèves. Cette approche se situe dans la perspective d’une éducation plurilingue et interculturelle qui s’ouvre sur la nécessité de prendre en compte le développement de la personne et de l’acteur social pour une meilleure citoyenneté.

  10. A statistical analysis of electrical cerebral activity; Contribution a l'etude de l'analyse statistique de l'activite electrique cerebrale

    Energy Technology Data Exchange (ETDEWEB)

    Bassant, Marie-Helene

    1971-01-15

    The aim of this work was to study the statistical properties of the amplitude of the electroencephalographic signal. The experimental method is described (implantation of electrodes, acquisition and treatment of data). The program of the mathematical analysis is given (calculation of probability density functions, study of stationarity) and the validity of the tests discussed. The results concerned ten rabbits. Trips of EEG were sampled during 40 s. with very short intervals (500 μs). The probability density functions established for different brain structures (especially the dorsal hippocampus) and areas, were compared during sleep, arousal and visual stimulus. Using a Χ{sup 2} test, it was found that the Gaussian distribution assumption was rejected in 96.7 per cent of the cases. For a given physiological state, there was no mathematical reason to reject the assumption of stationarity (in 96 per cent of the cases). (author) [French] Le but de ce travail est d'etudier les proprietes statistiques des amplitudes du signal electroencephalographique. La methode experimentale est decrite (implantation d'electrodes, acquisition et traitement des donnees). Le programme d'analyse mathematique est precise (calcul des courbes de repartition statistique, etude de la stationnarite du signal) et la validite des tests, discutee. Les resultats de l'etude portent sur 10 lapins. Des sequences de 40 s d'EEG sont echantillonnees. La valeur de la tension est prelevee a un pas d'echantillonnage de 500 μs. Les courbes de repartition statistiques sont comparees d'une region de l'encephale a l'autre (l'hippocampe dorsal a ete specialement analyse) ceci pendant le sommeil, l'eveil et des stimulations visuelles. Le test du Χ{sup 2} rejette l'hypothese de distribution normale dans 97 pour cent des cas. Pour un etat physiologique donne, il n'existe pas de raison mathematique a ce que soit repoussee l'hypothese de stationnarite, ceci dans 96.7 pour cent des cas. (auteur)

  11. Le resume de texte: une activite de production en langue etrangere assistee par ordinateur (Abstracting: A Computer-Assisted Foreign Language Production Activity).

    Science.gov (United States)

    Janitza, Jean

    1985-01-01

    A productive language exercise that uses the computer and a variation on the cloze procedure by deleting every third word and requiring the student to insert a grammatically and thematically acceptable term is described. (MSE)

  12. Relation entre la faune de quelques rivières du nord-ouest de l'Angleterre et les activités humaines

    Directory of Open Access Journals (Sweden)

    MACAN T. T.

    1976-01-01

    Full Text Available MINSHALL et KUEHNE ont signalé que, dans la « Région des lacs » en Angleterre, alors que la faune typique d'un ruisseau à fond pierreux peut monter jusqu'aux sources dans les montagnes, il y a des zones où la faune est pauvre, hormis les Plécoptères. Dans ces dernières eaux, le pH et le taux en calcium sont faibles, comme l'ont montré SUTCLIFFE et CARRICK qui pensent qu'il s'agit d'une pollution atmosphérique. De telles communautés habitent les affluents de la Rivière Lune. La rivière elle-même traverse une gorge où, grâce aux éboulis, le fond est stable. La faune actuelle est riche en espèces et en individus, surtout en larves de Tricoptères avec filet. C'est presque la seule région où les mollusques ne risquent pas d'être écrasés par les pierres roulantes. En aval, dans une longue plaine alluviale, le substrat est instable et, en conséquence, les espèces sont peu nombreuses bien que les individus de quelques-unes soient abondants. Une augmentation de l'enrichissement actuel provenant des villes et des prairies cultivées pourrait provoquer une croissance excessive des algues filamenteuses. Celles-ci font disparaître la vraie faune lithicole et disparaissent elles-mêmes en temps de crue, en emportant vers l'aval les animaux qu'elles hébergent. Au-delà de la plaine, la rivière traverse une région à pierre meulière, sur un lit plat et lisse. Entre deux barrages, ce lit est couvert de mousses habitées par 4 espèces d'éphémères qui ne se trouvent ailleurs, que dans de petites baies où le courant est faible. On a remarqué dans une rivière voisine la disparition de telles espèces après l'amélioration du lit par les ingénieurs.

  13. 2008 activity report of the French metrology - Ionising radiation; Rapport d'activite 2008 de la metrologie francaise - Rayonnements ionisants

    Energy Technology Data Exchange (ETDEWEB)

    Anon

    2009-07-01

    The activities of this section are entrusted to the Henry Becquerel national laboratory (LNE-LNHB), the national laboratory of metrology of the CEA-Saclay, and to the laboratory of dose metrology (LMDN) under the management of IRSN-Cadarache. They treat of ionizing radiations metrology in the domains of activity, photons and charged particles dosimetry, and basic data. This article summarizes the 2008 works carried out at both laboratories: international actions and comparisons, instrumentation improvements, establishment of national references. (J.S.)

  14. G8 global partnership. 2004-2005-2006 activity report; Partenariat mondial du G8. Rapport d'activite 2004-2005-2006

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    The Global Partnership Against the Spread of Weapons and Materials of Mass Destruction was launched by the heads of state and government of the G8 at the G8 summit in Kananaskis in June 2002. Fourteen other countries have since joined this G8 initiative. The aim of this partnership is to 'prevent terrorists, or those who harbor them, from acquiring or developing nuclear, chemical radiological and biological weapons, missiles, and related materials, equipment and technology'. Within the framework of the Partnership, the participants have agreed to support cooperation projects, starting with Russia, to promote non-proliferation, disarmament, the fight against terrorism and nuclear safety. The destruction of chemical weapons, the dismantling of decommissioned nuclear submarines, the disposal of fissile materials and the employment of former weapons scientists are among the priority concerns expressed. Ukraine has also been a beneficiary of this partnership since 2004. The participants in this initiative have agreed to contribute up to 20 billion dollars (up to 750 million euros from France) to support these projects over a period of ten years from 2002. A group of experts from the G8 on the Global Partnership (the GPWG = Global Partnership Working Group) meets regularly and gives an account of the progress made with this initiative in its annual report to the G8. These annual reports are published at the G8 summits. This document is the 2004 to 2006 activity report of the G8 global partnership.

  15. Commission for Energy regulation (CRE) - Activity report June 2005; Commission de regulation de l'energie (CRE) - Rapport d'activite juin 2005

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-07-01

    CRE is the French commission for energy regulation. CRE's remit is to assist in ensuring the proper operation of the electricity and natural gas markets for the benefit of the end-user. In particular, CRE ensures that the conditions of access to electricity and natural gas transmission and distribution systems do not hinder the development of competition. It monitors, for the electricity and natural gas sectors, all transactions made between suppliers, traders and producers, all transactions made on the organised markets and cross-border trading. It ensures that suppliers, traders and producers propose offers that are consistent with their financial and technical constraints. It monitors the implementation of and compliance with regulations giving consumers the right to choose their supplier in a competitive market, and allowing new suppliers to enter the market. This document is the 2005 activity report of CRE. Content: A - The opening of the markets in France and in Europe: The opening of the markets one year after 1 July 2004 (An especially important step, Electricity and gas: a common framework with structural differences, The coexistence of market prices and regulated tariffs); The European texts of 26 June 2003 (Texts to give new impetus, Texts to harmonize the role and powers of national regulators, Texts to guarantee the independence of system operators, Texts to ensure transparent and non-discriminatory access to networks, Texts providing for strengthening of interconnections); The outlook for 2007, a fully open market (1 July 2007: a date set by the directives, Priority given to informing and protecting consumers); B - Regulation of the natural gas market: The gas market in the European context (Europe's dependency on imports is increasing, Gas prices increased considerably across the whole of Europe in 2004, The European gas scene continues to be dominated by a small number of players, Gas infrastructures need to be developed in Europe, The new European texts specify the competitive framework); Opening of the gas markets (Opening of the markets in European Union countries, Opening of the French gas market); CRE: regulator of the French gas market (Major obstacles to efficient operation of the French gas market were raised during 2004 and early 2005, Changes in natural gas regulated sales tariffs, Regulated infrastructure tariffs and utilisation conditions, Gaz de France and Total commitments made to the European Commission, Opening of the non-household market on 1 July 2004 and work of the 2004 Gas Working Group (GTG 2004), Audits of the un-bundled accounts of integrated gas operators, CRE's opinions on the regulatory texts, Codes of good conduct for network operators); The work programme (Independence of network operators, Feedback, Preparation of total opening on 1 July 2007, Preparation of the new tariffs for use of regulated gas infrastructures, Comparison of offers of access to storage facilities in Europe, Distribution system operators' investment criteria, Works in the European context); C - Regulation of the electricity market: actors and electricity markets; access to public power networks; the public electric utility in the regulated market; D - The working of CRE: How CRE exercises its jurisdiction (A working method based on responsiveness, consultation and transparency, Disputes solved help to guarantee the right of access to networks for consumers, suppliers and producers, Control and sanction powers); Tools (Professionalism and a multi-disciplinary approach, Some resources remain insufficient to meet the deadline for total opening of the energy markets on 1 July 2007, Independence and budgetary structure); European and international activity (Relations with European Union institutions, Relations with other regulators, Other international relations); E - Glossary, Acronyms, Units and conversions, Index of insets, tables and figures, Council of European Energy Regulators (CEER)

  16. Dosimetric optimization approach for activities of metal plutonium elaboration by calciothermy; Demarche d'optimisation dosimetrique des activites d'elaboration du plutonium metal par calciothermie

    Energy Technology Data Exchange (ETDEWEB)

    Crovisier, Ph.; Brunetti, L.; Jourde, S.; Piot, J.; Valier Brasier, P. [CEA/DAMNA/DSTA - Service de Protection contre les Rayonnements- Centre de Valduc - 21120 Is sur Tille (France)

    2008-07-01

    The authors present the activities performed within a new unit of a plutonium pyro-chemistry laboratory, report a dosimetric assessment of workstation in this unit, compare the data with those obtained with the previous installation, and report a study of the neutronic efficiency of biological protection shields (measurements of neutron spectra)

  17. Activité antérieure – En Inde, le système pénal manque de services ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 avr. 2016 ... Solar dryers are improving livelihoods in Bhutan. Solar-powered fruit and vegetable driers are helping residents of southeastern Bhutan's remote villages increase their food security and improve li. View moreSolar dryers are improving livelihoods in Bhutan ...

  18. Activité antérieure – Assurer la sécurité alimentaire grâce à la ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 avr. 2016 ... Solar dryers are improving livelihoods in Bhutan. Des séchoirs à fruits et à légumes fonctionnant à l'énergie solaire aident les résidents de villages reculés du sud‑est du Bhoutan à accroître leur. Voir davantageSolar dryers are improving livelihoods in Bhutan ...

  19. Le contrôle de l’activité législative de la nation en 1789 : l’opinion de Dupont de Nemours

    Directory of Open Access Journals (Sweden)

    Anthony Mergey

    2014-06-01

    Full Text Available On the eve of the French Revolution, Dupont de Nemours became infatuated with constitutional issues that had hitherto been the exclusive domain of some of his fellow physiocrats, in particular Le Mercier de La Rivière. Endorsing the ideas of the time, he was convinced of the necessity of creating a new political regime that would take the features of a moderate monarchy. The prince would thus be submitted to constitutional rules, sovereignty transferred to the nation and the legislative power exercised by its representatives. However, even if sharing authority between the nation and the king was then claimed, the representatives of the nation should not exercise their prerogatives outside a clearly established, defined constitutional framework. Partly consistent with the original physiocratic theories, Dupont de Nemours identified constitutional norms that should be promoted and protected from abuses of the legislature. With this aim in mind, he didn’t plan to resort to a jurisdictional authority, because abuses of Ancien Régime parliaments were still live memories. He decided, in an original way, to entrust the heavy burden of controlling legislative activity to political instances, namely, successively, the people and the monarch. Quite naturally, these suggestions, expressed a few months apart, exposed various forms of control. The examination carried out by the nation appeared as a prerequisite and tended to verify the constitutionality of the law, while the one carried out by the monarch through his veto, as holder of the executive power, was more of a control of opportunity devoid of binding. Although the omnipotence of the revolutionary legicentrism seemed incompatible with such a system of verification of the norm, it remains that Dupont de Nemours was part of a current which considerably developed during the XVIIIth century and which found a certain resonance in the decade following the Revolution.

  20. Analyse de la nature constructiviste d'une activité d'apprentissage collaboratif médié par les TIC

    Directory of Open Access Journals (Sweden)

    Nancy Brousseau

    2003-10-01

    Full Text Available Abstract. In this article we examine an example of collaborative learning with ICT in secondary school science, in order to analyse its characteristics and determine if they answer criteria for an activity of constructivist nature. We retain that constructivism places the student at the centre of her learning; opposes the notion of learning as transmission of knowledge; requires an active participation of the learner who must build and reconstruct, individually and collectively, her knowledge in order to solve a problem or realise a project. In light of these criteria, we conclude that an activity such as the TACTICS project one, can be considered of a constructivist nature.

  1. Synthèse et réactivité de complexes à ligand iminophosphorane : des métaux de transition aux actinides

    OpenAIRE

    Cheisson , Thibault

    2015-01-01

    For the past decades, organometallic and coordination chemistry have proven to be fields of major importanceby allowing the preparation of catalysts that are able to perform unpreceded chemical reactions, in addition with the discovery of unusual species with physical and chemical properties that are very interesting. All these studies are underlining the primordial role of the ligand, which allows fine-tuning of the properties of such species. Our laboratory has gained considerable experienc...

  2. Report of Activity, 1996 - 1997. Vol. 1. Experimental Research Division; Rapport d`activite 1996 - 1997. Tome 1. Division de Recherche Experimentale

    Energy Technology Data Exchange (ETDEWEB)

    Brunelle, Alain; Morlet, Marcel; Hutin, Christiane [eds.; Inst. de Physique Nucleaire, Paris-11 Univ., 91 - Orsay (France)

    1999-11-01

    This report presents the activity of Experimental Research Division of the Orsay Institute of Nuclear Physics on 1996 - 1997. The following 10 sections are represented through summary reports or short communications: 1. Nuclear structure far from stability (with the topics: 1.1. Exotic nuclei -Secondary beams of radioactive ions; 1.2. On-line spectroscopy; 1.3. Discrete high-spin states); 2. High excitation energy nuclear states; 3. Nuclear matter and nucleus-nucleus collisions (which includes 3.1. Evolution of reaction mechanisms from 10 to 150 MeV/u; 3.2. Hot nuclei; 3.3. Ultra-relativistic collisions); 4. Hadronic physics (with the topics: 4.1 Meson production; 4.2. Spin modes in nuclei; 4.3. Hadronic physics with electromagnetic probes); 5. Radiochemistry (with the sub-divisions: 5.1. Studies related to radioactive waste management; 5.2. Optical spectroscopy of actinide and lanthanide ions in solid media); 6. Inter-disciplinary research (with the topics: 6.1. Heavy ion and cluster interactions with matter and surfaces; 6.2. Medical imaging); 8. Teaching; 9. Publications - Conferences - Seminars; 10 Internal reports - Lectures - Theses - Patents. The scientific staff of the following groups is also presented: 1. Group of Nuclear Structure by Reactions; 2. Group of Heavy Ion Nuclear Physics; 3. Intermediary Energy Group; 4. Hadron Physics Group; 5. Nuclei-Ions-Matter Group; 6. Radiochemistry Group; 7. Group of Exotic Deformed Nuclei; 8. Group of Physics-Biology Interface

  3. Annual report 1999. Department of wastes disposal and storage; Rapport annuel d'activite 1999. Departement d'Entreposage et de Stockage des Dechets

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    This annual report presents the organization, the personnel, the collaborations, the scientific researches and the publications of the Department of wastes disposal and storage of the CEA. A thematic presentation of the research and development programs is provided bringing information on the liquid effluents processing, the materials and solid wastes processing, the wastes conditioning, the characterization, the storage, the radionuclides chemistry and migration, the dismantling and the environment. (A.L.B.)

  4. Planification des activités en logistique inverse : modélisation et optimisation des performances par une approche stochastique en programmation linéaire

    OpenAIRE

    Fall , Alioune

    2016-01-01

    During the last decades, reverse logistics networks have been launched in severalindustrialized countries with the aim of preserving the environment. The implementation andmanagement of the reverse logistics concerns the different levels (strategic, tactical andoperational) existing in the framework of forward logistics for any production system. Toimprove this type of network, modeling and simulation are effective tools. After presenting astate of the art in this domain, our study focuses on...

  5. Le cycle de l'eau et les activités au sein de l'espace rural. Enjeux globaux, solutions locales et régionales

    Science.gov (United States)

    Perrier, Alain; Tuzet, Andrée

    2005-02-01

    The analysis of the water cycle emphasizes the weight of surface evaporation compared to rain and the weight of water availability compared to evaporation. The ocean is a huge machine producing water vapour contrary to the continents, where evaporation is limited by plants that must shield themselves from drying and particularly by bare soils where the surface drying slows down the water losses. The availability of water for the biosphere depends on the difference between rain and evaporation. This difference, often called 'net supply', can be modified by anthropogenic actions on the vegetation; for example, the anthropogenic actions such as drying climate (reducing evapotranspiration) increases the net supply; on the opposite, the large development of more and more covering vegetation (arboreous system, bocages, savannah...) decreases the net supply (larger surface evapotranspiration all over the year). Moreover, the feedback between climate and continental interface can modify the rainfall pattern and the thermal equilibrium, leading ecosystems to extreme situations such as drying climate and desertification (ET lower and lower) or equilibrium situations corresponding to large development of vegetation (ET close to EP). The anthropogenic pressure and the human food requirements lead human beings to keep nearly the whole available water of the biosphere, particularly to practise irrigated agriculture. This practise is on average two times more efficient than the rainy agriculture (which is why it is attractive); moreover, its water efficiency decreases according to the environment and its aridity. Except for arboreous systems and agroforestry, agriculture is always a system that leads more or less towards aridity, but we have to bring it under control and to make it sustainable. A good management of the whole rain requires an efficient organization of the territory to optimise the water consumption in order to protect the environment and its biodiversity, to increase the agricultural production, to avoid pollutions and to reduce everywhere it is possible the natural degradation (deforestation-aridification-desertification), even to reverse it. It is the reason why, in situations nearly always unstable and very often difficult, water is inseparable from environment, and any approach on water management cannot be imagined and evaluated out of the context defined by the triptych 'anthroposphere-biosphere-technosphere'. To cite this article: A. Perrier, A. Tuzet, C. R. Geoscience 337 (2005).

  6. Étude des traces du rapport à l’écrit dans une activité de réécriture

    Directory of Open Access Journals (Sweden)

    Érick Falardeau

    2006-06-01

    Full Text Available Abstract Within Cegep classes (17 to 20 years of age reserved for students having previously failed a literature course, we examined the impact of a rewriting activity on the development of students’ writing skills and their representation of the writing process. This activity was designed to encourage students to reflect on difficulties in their writing in response to individual written feedback provided by a researcher following their first draft. The results of this study show that students’ approach to revising was largely limited to the editing of words and sentence structure. To illustrate this, we discuss two typical cases: the first features a student who has difficulty correcting surface errors through the application of basic rules of language usage; the second focuses on a student whose text production process is limited to a single draft, thus excluding recourse to subsequent planning or revising.

  7. Fixation of Simulated Highly Radioactive Wastes in Glassy Solids; Fixation de Dechets Simules de Haute Activite dans des Soudes Vitreux; 0424 0418 041a 0421 0410 0426 0418 042f 0418 041c 0418 0422 0418 0420 041e 0412 0410 041d 041d 042b 0425 0420 0410 0414 0418 041e 0410 041a 0422 0418 0412 041d 042b 0425 041e 0422 0425 041e 0414 041e 0412 0412 042b 0421 041e 041a 041e 0419 0410 041a 0422 0418 0412 041d 041e 0421 0422 0418 0421 0422 0415 041a 041b 041e 041e 0411 0420 0410 0417 041d 042b 041c 0418 0422 0412 0415 0420 0414 042b 041c 0418 0412 0415 0429 0415 0421 0422 0412 0410 041c 0418 ; Fijacion de Desechos Simulados de Elevada Radiactividad en Solidos Vitreos

    Energy Technology Data Exchange (ETDEWEB)

    Clark, W. E.; Godbee, H. W. [Oak Ridge National Laboratory, Oak Ridge, TN (United States)

    1963-02-15

    on TBP-25 waste and from 8 to 140 mil/ month on Purex waste. Operation above 900 Degree-Sign C with Purex waste plus fluxing agents may result in catastrophic local corrosion. (author) [French] Le Laboratoire national d'Oak Ridge s'efforce actuellement de mettre au point un methode d'incorporation des dechets de haute activite dans des verres insolubles de densite elevee, tous les elements radioactifs se trouvant contenus dans la partie solide. Des experiences avec des dechets simules resultant des procedes TBP-25 (aluminium, HNO{sub 3}), Purex et Darex (acier inoxydable, HNO{sub 3}) montrent qu'une telle methode est techniquement realisable. Des solides denses, de structure microcristalline, peuvent convenir aussi bien que de veritables, verres; leur meilleure conductibilite thermique compense dans une certaine mesure le fait que la surface doit etre plus grande que dans le cas des verres. Avec les types de dechets susmentionnes, on a prepare des verres au phosphate et au borophosphate. La volatilite du cesium etait limitee a 0,1% environ du fait de l'entrainement mecanique et la volatilite du ruthenium a ete abaissee a moins de 0,5% par addition de phosphite ou d'hypophosphite. Parmi les autres additifs figuraient PbO, Ca(OH){sub 2}, NaOH et MgO. Les densites brutes variaient entre 2,36 et 2,90 g/cm{sup 3} pour les dechets du procede TBP-25 et entre 2,63 et 2,80 g/cms pour les dechets du procede Purex. Les reductions de volume correspondantes, a partir des solutions concentrees de dechets, etaient comprises entre 7,2 et 9,3 et entre 5,7 et 8,3; le passage initial a l'etat pateux se produisait entre 875 et 1000 Degree-Sign C et entre 830 et 975 Degree-Sign C respectivement. Les essais avec les dechets Darex en sont encore au stade preliminaire. En operant de maniere semi-continue a l'echelle semi-industrielle' on a obtenu un verre veritable a partir de dechets TBP-25 et un solide microcristallin a partir de dechets Purex. La conductibilite thermique du verre variait

  8. Ultimate Storage of High-Level Waste Solids and Liquids in Salt Formations; Stockage Definitif de Dechets Solides et Liquides de Haute Activite dans des Formations Salines; 041e 041a 041e 041d 0427 0410 0422 0415 041b 042c 041d 041e 0415 0425 0420 0410 041d 0415 041d 0418 0415 0422 0412 0415 0420 0414 042b 0425 0418 0416 0418 0414 041a 0418 0425 0412 042b 0421 041e 041a 041e 0410 041a 0422 0418 0412 041d 042b 0425 041e 0422 0425 041e 0414 041e 0412 0412 0421 041e 041b 042f 041d 042b 0425 041e 0411 0420 0410 0417 041e 0412 0410 041d 0418 042f 0425 ; Almacenamiento Definitivo de Desechos Solidos y Liquidos de Elevada Radiactividad En Formaciones de Rocas Salinas

    Energy Technology Data Exchange (ETDEWEB)

    Bradshaw, R. L.; Boegly, Jr., W. J.; Empson, F. M.; Kubota, H.; Parker, F. L.; Perona, J. J.; Struxness, E. G. [Oak Ridge National Laboratory, TN (United States)

    1963-02-15

    , calculations, based on an infinite array of line sources, showed that, in general, for wastes cooled longer than three years the space requirements are the same as for solids above the floor. Current studies are primarily concerned with the disposal of packaged solids and will culminate with a demonstration in a salt mine, probably during 1965. (author) [French] Les formations salines presentent beaucoup d'interet pour le stockage definitif de dechets liquides et solides de haute activite. Elles sont impermeables, elles sont resistantes et elles offrent une bonne conductibilite thermique. Des experiences en laboratoire et des essais dans une mine du Kansas ont montre que: a) les valeurs de la conductibilite thermique et du coefficient de diffusion de la roche saline impure in situ (0.011 cal/cm. s. Degree-Sign C et 0,026 cm{sup 2}/s pour une temperature de pointe du sel de 60 Degree-Sign C) ne representent que de 10 a 20% des valeurs mesurees en laboratoire pour des monocristaux; b) le fait de porter a 65 Degree-Sign C la temperature d'un volume d'enviroo 12 000 l de dechets places dans une cavite carree de 2,25 m de cote n'a pas compromis la stabilite de la chambre de mine, bien que la distance entre le sol et le plafond ait diminue de 1,25 cm a 1,50 m de la cavite; c) l'evaporation de la solution suivie d'une condensation sur les parois provoque certaines alterations de la cavite; d) l'adsorption d'une solution de dechets par du sel ecrase retarde a la fois l'alteration de la cavite et la production de gaz provenant de la decomposition radiolytique; e) les doses de rayonnement auxquelles ilfaut s'attendre dans une operation reelle d'elimination de dechets ne sera pas suffisamment grande pour affecter sensiblement la stabilite des chambres de mine. Le point principal sur lequel il subsiste encore des doutes est l'influence sur la stabilite de la mine d'une elevation de la temperature de grandes surfaces. Des recherches.theoriques et experimentales sur ce point sont en cours

  9. De l’activité virtuelle à l’activité réelle : ressources et empêchements à la créativité de cadres formés au management d’équipe avec un serious gaming

    OpenAIRE

    Martin , Lydia

    2015-01-01

    This thesis speaks about the creativity and conformity in serious gaming and the link with real work situations of executives. To explore this link, we conducted a training program using an army helicopter flight simulator that had been redesigned to train executives in teamwork. The study was conducted over two years in 16 game sessions with 44 volunteer participants from the same company. The research analyzed the gap between prescribed and real work. In English, contrary to French, there a...

  10. Submission of the national commission of the public debate on the options concerning the long life high and medium activity radioactive wastes management; Saisine de la commission nationale du debat public sur les options generales en matiere de gestion des dechets radioactifs de haute activite et de moyenne activite a vie longue

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    This document deals with the presentation of a public debate on the radioactive wastes management and the opportunities of its organization. It presents successively the long life high and medium activity radioactive wastes, the today radioactive wastes management policy and some questions and topics which could be discussed during the debate. (A.L.B.)

  11. Public debate on the general options relative to the management of high-medium activity and long-lived radioactive wastes; Debat public sur les options generales en matiere de gestion des dechets radioactifs de haute activite et de moyenne activite a vie longue

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-09-15

    The law from December 30, 1991, precisely defines 3 axes of researches for the management of high level and long-lived radioactive wastes: separation/transmutation, surface storage and underground disposal. A global evaluation report about these researches is to be supplied in 2006 by the French government to the Parliament. A first synthesis of the knowledge gained after 14 years of research has led the national commission of the public debate (CNDP) to organize a national debate about the general options of management of high-level and long-lived radioactive wastes before the 2006 date line. This document presents the organizational aspects of the debate: origin, organization committee (mission, members, commitments), framework (the December 31, 1991 law, technical enlargement, society aspects), topics (summary of the debate in ten questions), organization modalities (4 main steps, schedule, venues), objectives and perspectives (sharing information, decision making processes to be implemented by 2006). (J.S.)

  12. Status of the public debate on the general options of management of high and intermediate activity and long-lived radioactive wastes; Bilan du debat public sur les options generales en matiere de gestion des dechets radioactifs de haute activite et de moyenne activite a vie longue

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-01-15

    The law from December 30, 1991, precisely defines 3 axes of researches for the management of high level and long-lived radioactive wastes: separation/transmutation, surface storage and underground disposal. A global evaluation report about these researches is to be supplied in 2006 by the French government to the Parliament. A first synthesis of the knowledge gained after 14 years of research has led the national commission of the public debate (CNDP) to organize a national debate about the general options of management of high-level and long-lived radioactive wastes before the 2006 date line. The debate comprised 4 public hearings (September 2005: Bar-le-Duc, Saint-Dizier, Pont-du-Gard, Cherbourg), 12 round-tables (October and November 2005: Paris, Joinville, Caen, Nancy, Marseille), a synthesis meeting (December 2005, Dunkerque) and a closing meeting (January 2006, Lyon). This document is a status of the general organisation and progress of the debate from its preparing to its end in mid-January 2006. It shows the challenges the CNDP had to take up to treat the scientifical and technical questions in an accessible way, allowing the participation and the hearing of the large public. A status is made of the deception and satisfaction of the public. A lack of confidence in public authorities and scientists has been expressed several times. No pro-nuclear/anti-nuclear shock has occurred and the debate has revealed a remarkable richness in its content. One contribution of the debate to the future project of law is its enlargement to the overall nuclear wastes and valorizable materials and not only to the high/intermediate-level and long-lived wastes. (J.S.)

  13. Proceedings of the public debate on the general options of management of high and intermediate activity and long-lived radioactive wastes; Compte-rendu du debat public sur les options generales en matiere de gestion des dechets radioactifs de haute activite et de moyenne activite a vie longue

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-01-15

    The law from December 30, 1991, precisely defines 3 axes of researches for the management of high level and long-lived radioactive wastes: separation/transmutation, surface storage and underground disposal. A global evaluation report about these researches is to be supplied in 2006 by the French government to the Parliament. A first synthesis of the knowledge gained after 14 years of research has led the national commission of the public debate (CNDP) to organize a national debate about the general options of management of high-level and long-lived radioactive wastes before the 2006 date line. The debate comprised 4 public hearings (September 2005: Bar-le-Duc, Saint-Dizier, Pont-du-Gard, Cherbourg), 12 round-tables (October and November 2005: Paris, Joinville, Caen, Nancy, Marseille), a synthesis meeting (December 2005, Dunkerque) and a closing meeting (January 2006, Lyon). This document is a summary of the main questions tackled during this debate from its preparation to its closing meeting and dealing with: the acceptation of the debate, the progress of the debate, the socio-technical problem of gathering the different points to be debated with respect to the different areas in concern, the general questions about the overall nuclear wastes and materials (radioactivity, health, radioprotection, management, reprocessing, control, actors organization, knowledge sharing, perenniality of the financing), the specific questions about long-lived wastes (inventory, separation-transmutation feasibility, nuclear energy and energy policy, management solutions, storage and geologic disposal feasibility, impact of debates on the 2006 law, long-lived waste territories), the conclusions for the 2006 law: mastering the overall nuclear wastes and materials and step-by-step building up of a solution for long-lived wastes (difficulties, lessons learnt from foreign experience, first draft of the 2006 law). Some opinions expressed by some participants about these proposals conclude the document. (J.S.)

  14. Technological demonstrators. Researches and studies on the storage and disposal of long living intermediate level and high level radioactive wastes; Les demonstrateurs technologiques. Recherches et etudes sur le stockage et l'entreposage des dechets de haute activite et de moyenne activite a vie longue

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-07-01

    This brochure presents the technological demonstrators made by the French national agency of radioactive wastes (ANDRA) and exhibited at Limay (Yvelines, France). These demonstrators, built at scale 1, have been an essential support to the establishment of the 'Dossier 2005' which demonstrates the feasibility of a reversible disposal of long living-intermediate level and high level radioactive wastes in the Callovo-Oxfordian argillite of Meuse-Haute Marne. Two type of demonstrators were built: demonstrators of storage containers for long living-intermediate level wastes and for spent fuels, and dynamic demonstrators for containers handling. This brochure presents these different demonstrators, their characteristics and the results of their tests. (J.S.)

  15. Ultimate Disposal of High-Level Radioactive Wastes - Fixation in Phosphate Glass with Emphasis on the Continuous Mode of Plant Operation; Elimination Definitive de Dechets de Haute Activite - Fixation dans du Verre au Phosphate en Vue d'une Exploitation de l'Installation en Continu; ОКОНЧАТЕЛЬНОЕ УДАЛЕНИЕ ВЫСОКОАКТИВНЫХ ОТХОДОВ - ФИКСАЦИЯ В ФОСФАТНОМ СТЕКЛЕ НА НЕПРЕРЫВНО РАБОТАПЦЕЙ УСТАНОВКЕ; Evacuacion Definitiva de Desechos de Elevada Radiactividad. Fijacion en Vidrio al Fosfato Atendiendo Particularmente a la Continuidad de la Marcha de la Instalacion

    Energy Technology Data Exchange (ETDEWEB)

    Hatch, L. P.; Weth, G. C.; Tuthill, E. J. [Brookhaven National Laboratory, Upton, Long Island, NY (United States)

    1963-02-15

    In the study of ultimate disposal of high-level radioactive wastes at Brookhaven National Laboratory emphasis is being placed on the formation of phosphate glasses as a means of incorporating the fission products in stable media. Of primary interest here is the development of a process in which the entire conversion from the raw aqueous wastes to the final.glass product would be carried out in an all-liquid system. The phosphate-glass method offers a number of important advantages in this respect and, in particular, lends itself to the development of a continuous process in which the liquid medium would be readily transferable from one process step to another. The paper presents the results of bench-scale studies on the production of phosphate glasses, with the continuous mode of operation, utilizing various types of aqueous wastes. The studies have been in progress for some 20 months and were carried out to determine essential operating parameters with particular attention paid to corrosion resistance and physical integrity of the high-temperature crucible. In addition, the paper discusses flow-sheet development together with the design and results of operation of. an engineering-scale plant having a capacity of 0.5 ft{sup 3} of glass per day with a continuous feed of simulated non-radioactive wastes. (author) [French] Dans l'etude des methodes d'elimination definitive des dechets de haute activite, le Laboratoire national de Brookhaven attache une grande importance aux verres au phosphate pour la fixation des produits de fission dans un milieu stable. On s'efforce essentiellement de mettre au point un processus dans lequel la transformation, depuis le dechet liquide et l'etat brut jusqu'au produit vitreux final, s'opererait entierement en phase liquide. A cet egard, le verre au phosphate presente un grand nombre d'avantages importants; en particulier, il se prete a la mise au point d'un processus continu dans lequel le milieu liquide pourrait facilement passer d

  16. Analysis and composition of the first U-Pu charge (0,043 per cent of Pu); Analyse et constitution du 1. jeu U-Pu (0,043 pour cent de Pu)

    Energy Technology Data Exchange (ETDEWEB)

    Brunet, J P; Lapparent, D de; Lourme, P [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1965-07-01

    Checking the homogeneity in the content of plutonium of 0,043 per cent Pu-natural uranium alloy slugs has been made by Pu 240 and U 238 spontaneous fissions neutrons counting. The purpose of the test was to select groups of slugs to be correctly associated into fuel rods for critical experiments. General technic for spontaneous fissions counting, then elaboration of data in view of ranking the slugs are described. Results are given for this particular case. (authors) [French] On a effectue un controle d'homogeneite de teneur en plutonium sur des billettes d'alliage 0,043 pour cent Pu-uranium naturel, par comptage des fissions spontanees du plutonium 240 et de l'uranium 238. Le but du controle etait de permettre une association correcte de ces billettes a l'interieur des elements combustibles destines a servir dans des experiences critiques. On indique la methode generale de comptage des fissions spontanees, puis le depouillement des donnees en vue du classement des barreaux. Les resultats pour ce cas particulier sont donnes dans le rapport. (auteurs)

  17. Élites musulmanes et processus d’acculturation par les activités physiques modernes dans les années vingt : de la Médersienne à l’Avant-garde Musulmane de Cirta

    OpenAIRE

    Boulebier, Djamel

    2013-01-01

    Dans l’Algérie coloniale, l’après guerre a eu pour première conséquence sur le plan sportif l’enclenchement d’un processus d’autonomisation des pratiques sportives vis-à-vis de l’Union des Sociétés Françaises des Sports Athlétiques devenue de plus en plus obsolète au vu de l’importance grandissante de ce qu’il était convenu d’identifier de plus en plus comme un phénomène social. Ces changements n’affectèrent en rien les sportsmen musulmans, bien au contraire. Nous assistons à leur redéploieme...

  18. Causal reasoning and models of cognitive tasks for naval nuclear power plant operators; Raisonnement causal et modelisation de l`activite cognitive d`operateurs de chaufferie nucleaire navale

    Energy Technology Data Exchange (ETDEWEB)

    Salazar-Ferrer, P

    1995-06-01

    In complex industrial process control, causal reasoning appears as a major component in operators` cognitive tasks. It is tightly linked to diagnosis, prediction of normal and failure states, and explanation. This work provides a detailed review of literature in causal reasoning. A synthesis is proposed as a model of causal reasoning in process control. This model integrates distinct approaches in Cognitive Science: especially qualitative physics, Bayesian networks, knowledge-based systems, and cognitive psychology. Our model defines a framework for the analysis of causal human errors in simulated naval nuclear power plant fault management. Through the methodological framework of critical incident analysis we define a classification of errors and difficulties linked to causal reasoning. This classification is based on shallow characteristics of causal reasoning. As an origin of these errors, more elementary component activities in causal reasoning are identified. The applications cover the field of functional specification for man-machine interfaces, operators support systems design as well as nuclear safety. In addition of this study, we integrate the model of causal reasoning in a model of cognitive task in process control. (authors). 106 refs., 49 figs., 8 tabs.

  19. Modèles d'activités pédagogiques et support de l'interaction pour l'apprentissage d'une langue – le système Sampras

    OpenAIRE

    Michel , Johan

    2006-01-01

    Our research is about the conception of computer assisted language learning (CALL) environments. We mainly focus on design of pedagogical activities and interaction support in a microworld dedicated to French as foreign language learning. The main idea of the project is that learning a language can take place in the interaction between a learner and a companion. The activities implicate the learner in an interaction with a virtual partner (a chef) around a task to accomplish (a recipe) in a m...

  20. "Bonjour History": Materials and Ideas for Teaching Louisiana's Cajun History = "Bonjour l'Histoire": Quelques Idees, Deux ou Trois Activites, et Plusieurs Materiaux pour l'Enseignement de l'Histoire des Cadiens en Louisiane.

    Science.gov (United States)

    Mounier, Brenda

    The goals of this teacher's guidebook and videotape are designed to incorporate Acadian (Cajun) history into the 4th grade social studies curriculum and the 4th and 5th grade Louisiana 30-minute daily French programs and French immersion programs. Another goal is to create an awareness, appreciation, and understanding of Acadian history in…

  1. Preparation and properties of thin films used in activity determinations with a 4 {pi} counter; Preparation et proprietes des films minces utilises dans les determinations d'activite au compteur 4 {pi}

    Energy Technology Data Exchange (ETDEWEB)

    Jannez, M.; Le Gallic, Y.; Thenard, M. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1958-07-01

    Comparative study of various methods of preparing thin films, for use as source holders in the 4 {pi} counter, and of measuring their thickness. Comparative study of various properties: mechanical resistance; heat resistance; ageing; resistance of rhodopas, polystyrene, formvar and cellulose acetate films to the action of various chemical agents. (author) [French] Etude comparee de divers procedes de preparation de films minces, destines a etre utilises comme supports de sources dans le compteur 4 {pi} et de la mesure de leur epaisseur. Etude comparee de diverses proprietes: resistance mecanique; resistance a la chaleur; vieillissement; resistance a l'action de divers agents chimiques de films de rhodopas, polystyrene, formvar et acetate de cellulose. (auteur)

  2. Research programme 'Active Solar Energy Use - Solar Heating and Heat Storage'. Activities and projects 2003; Programme 'Solaire actif - Chaleur et Stockage de chaleur'. Activites et projets en 2003

    Energy Technology Data Exchange (ETDEWEB)

    Hadorn, J.-C. [Base Consultants, Geneva (Switzerland); Renaud, P. [Planair SA, La Sagne (Switzerland)

    2003-07-01

    In this report by the research, development and demonstration (RD+D) programme coordinators the objectives, activities and main results in the area of solar heating and heat storage in Switzerland are presented for 2003. In a stagnating market environment the strategy of the Swiss Federal Office of Energy mainly consists in improving the quality and durability of solar collectors and materials, optimizing combisystems for space heating and domestic hot water preparation, searching for storage systems with a higher energy storage density than in the case of sensible heat storage in water, developing coloured solar collectors for more architectonic freedom, and finalizing a seasonal heat storage project for 100 dwellings to demonstrate the feasibility of solar fractions larger than 50% in apartment houses. Support was granted to the Swiss Testing Facility SPF in Rapperswil as in previous years; SPF was the first European testing institute to perform solar collector labeling according to the new rules of the 'Solar Keymark', introduced in cooperation with the European Committee for Standardization CEN. Several 2003 projects were conducted within the framework of the Solar Heating and Cooling Programme of the International Energy Agency IEA. Computerized simulation tools were improved. With the aim of jointly producing high-temperature heat and electric power a solar installation including a concentrating collector and a thermodynamic machine based on a Rankine cycle is still being developed. Seasonal underground heat storage was studied in detail by means of a validated computer simulation programme. Design guidelines were obtained for such a storage used in the summer time for cooling and in the winter time for space heating via a heat pump: depending on the ratio 'summer cooling / winter heating', cooling requires a cooling machine, or direct cooling without such a machine is possible. The report ends up with the list of all supported RD+D projects.

  3. The Effect of Prolonged Military Activities in Man. Physiological and Biochemical Changes. Possible Means of Rapid Recuperation (les Effets d’activites mi1itaires prolongees sur l’homme. Changements physiologiques et biochimiques. Moyens possibles de recuperation rapide.)

    Science.gov (United States)

    2001-03-01

    intestinal motility with constipation and abdominal distension (Ladenson et al 1992, Utiger 1995). The hypothyroidism may also contribute to the...the hot season. Therefore, the conjonction of muscular heat production and external climatic heat load led to a diachronic increase in slow-wave...Nutr Soc, 1993; 52: 127A. Hermansen, L., Eriksen, O. & Larsen, C. (1972) Apparatus for rating isometric muscular strength. J Norwegian Med Assoc, 4, 1-9

  4. Evolutionist approach of upstream activities competitiveness of the petroleum industry in a long term perspective; Approche evolutionniste de la competitivite des activites amont de la filiere petroliere dans une perspective de long terme

    Energy Technology Data Exchange (ETDEWEB)

    Dos Santos, E M

    1997-01-24

    The purpose of this work is to analyze the concept of competitiveness of companies and nations in the upstream sector of the international oil industry, trying to identify the possibilities of future development of this sector as well as the interactions that may exist between different actors such as governments, consumers and oil companies to boost or re-launch the competitive position of their enterprises and countries in the international context of the industry. In order to attain that, we analyze the developments of the most important economic attributes that characterize the oil activity as well as its most crucial political aspects. We develop a model of `oil competition` and a definition of `oil competitiveness` that take clearly into consideration both the differences between various oil actors and the dynamic aspects linked to the evolution of the oil industry. We do so by constructing an evolutionist model of competition and competitiveness. This approach emulates a `biological process` where firms and the economic environment interact with each other within a process similar to `natural selection` with the survival of the fittest. This evolutionist model adopts some analytical instruments established by Michael Porter, from the University of Harvard, to interpret the changes and the dissimilarities of behavior of various oil actors as well as to explain their respective role in the new oil world that is being organized. Thus, we introduce the notions of `dominant form of competition` and `generic strategy of enterprises`. Then, we use our methodology to analyze the past of the oil industry (the stability and the instability). We conclude this work by discussing about the future evolution of the oil activities in the context of a new long term cycle of investment for the sector. (author).

  5. Cycle annuel d'activité de la truite commune (Salmo trutta L. adulte : Étude par radio-pistage dans un cours d'eau de l'Ardenne belge

    Directory of Open Access Journals (Sweden)

    OVIDIO M.

    1999-01-01

    Full Text Available Sur une durée totale d'expérience de vingt-six mois, vingt truites (26,0-57,0 cm LF ; 198-1 685 g ont été quotidiennement suivies par radio-pistage dans l'Aisne (affluent de l'Ourthe durant des périodes variant de 466 à 16 jours selon les individus et les contraintes techniques expérimentales, notamment la durée de vie des batteries. Il apparaît que l'amplitude et la fréquence des mouvements sont le plus élevées d'octobre à décembre, pendant la période de reproduction. Les migrations vers l'amont (max. : 25 km ont principalement lieu en octobre et pendant la première quinzaine de novembre et sont déclenchées par des variations combinées du niveau d'eau et de la température, dans une gamme thermique précise (10°C à 14°C. Le frai (de la deuxième quinzaine de novembre à la fin décembre a lieu dans le cours principal (largeur maximale : 10 m ou dans de petits affluents. Les truites qui survivent effectuent un homing post-reproducteur rapide (max. : 9 200 m en 24 h et précis. En dehors du contexte de la reproduction, les déplacements sont moins longs et correspondent essentiellement à des changements alternés de gîtes dans un domaine vital bien défini dont la longueur est corrélée avec la taille des truites. En mars et juin, certaines truites effectuent des migrations unidirectionnelles de grande amplitude vers l'amont dont la signification biologique est inconnue. Les résultats sont discutés dans le contexte des stratégies de vie de la truite et de la gestion des populations.

  6. Importanța și oportunitatea activității practico-științifice a judecătorului la exercitarea și consolidarea actului de justiție in Republica Moldova

    Directory of Open Access Journals (Sweden)

    Furdui Sergiu

    2017-04-01

    Full Text Available Activity on justice court under authority delegated by law, as a spear tip in the exercise of rule of law, is monitored and watched very carefully by the public and thus the scientific-practical activity, which is a part, is expressed most clearly and clear views on issues of law hearing the proceedings. Practical and scientific Activity meets the various court actions, such as developing and publishing opinions on the problems faced by law, teaching activity - teachers, trainers at the National Institute of Justice, the preparation and presentation to conferences, seminars, symposiums, participation in working group drafting the law, decisions explanatory speeches in public debates on legal issues, etc.. Without claiming to be relevant or achieve perfect degree, mention that not all actions that form the practical activity - scientific judge, either in terms of approach and motivation, or just below that of legality made solutions, are immune from criticism; their promotion is designed to foster the exchange of professional opinion affirming judge for training and as representative of the judiciary. In that article I presented an important direction of the judge to stage contemporary work on this line of thought, consider that some of the things that are done will find their solution in the near future, while others still may not be aware and therefore made, decision makers will stand out, because the concern of judges to materialize in concrete scientific practical work and effective.

  7. Where, when, how: the place of radioactive wastes in France. Andra, 1998 activity report; Ou, quand, comment: la place des dechets radioactifs en France. Andra, rapport d'activite 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    The 1998 activity report of the French national agency of radioactive wastes (Andra) presents successively: the role and missions of the Andra (history, status of radioactive wastes in France, surface storage and know-how, underground research laboratories, site selection and public information); the aspects of safety (inventory, identification and labelling of wastes, environmental policy, public relation, safety rules and reports, information storage); the scientific programs (collaborations, financing, site studies, rock mechanics and reversibility of storage, design of storage facilities, services); financial report. (J.S.)

  8. Powernext Day-Ahead. Powernext Futures. Powernext Carbon. Powernext Weather. Activity assessment first-half 2006; Powernext Day-Ahead. Powernext Futures. Powernext Carbon. Powernext Weather. Bilan d'activite premier semestre 2006

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO{sub 2} exchange markets. This activity report presents the highlights of the market and of Powernext in the first half of 2006: market conditions, prices and traded volumes on Powernext (Powernext Day-Ahead{sup TM} in the case of day-ahead contracts, Powernext Futures{sup TM} in the case of medium-term contracts, and Powernext Carbon in the case of CO{sub 2}), new active members, and liquidity on the power market. (J.S.)

  9. Powernext Day-Ahead. Powernext Futures. Powernext Carbon. Powernext Weather. 2006 activity assessment; Powernext Day-Ahead. Powernext Futures. Powernext Carbon. Powernext Weather. Bilan d'activite 2006

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO{sub 2} exchange markets. This activity report presents the highlights of the market and of Powernext in 2006: market conditions (prices on the electricity market, prices on the CO{sub 2} emission allowances market, weather conditions, institutional aspects of the CO{sub 2} market, power generation and consumption, situation at the borders, fuel prices), traded volumes on Powernext (Powernext Day-Ahead{sup TM} in the case of day-ahead contracts, Powernext Futures{sup TM} in the case of medium-term contracts, and Powernext Carbon in the case of CO{sub 2}), new active members, and Powernext liquidity on the power market. (J.S.)

  10. Influence of the Chernobyl fallout on {sup 137}Cs wine activities on the Rhone valley; Influence des retombees de l'accident de Tchernobyl sur l'activite en {sup 137}Cs du vin des cotes du Rhone

    Energy Technology Data Exchange (ETDEWEB)

    Renaud, Ph.; Colle, C.; Louvat, D.; Barker, E. [Institut de Radioprotection et de Surete Nucleaire, IRSN, 13 - Saint Paul Lez Durance (France)

    2003-03-01

    Influence of the Chernobyl fallout on {sup 137}CS wine activities on the Rhone valley. Some parts of the Rhone valley have been quite strongly, affected by the Chernobyl fallout, with {sup 137}Cs deposits sometimes higher than 20 000 Bq m{sup -2}. In those regions, most of agricultural surfaces are devoted to vineyards for famous vintages. This study shows that the consequences of the Chernobyl fallout in wine were visible but very weak. {sup 137}CS wine activities did not reached 1 Bq 1{sup -1}. Such limited consequences are linked to the date of the deposit, the first week of May 1986, at the beginning of vineyard plant foliar development. Since 1986, this activity has strongly decreased to be in 2000 close to those existing before the accident: some milli-becquerel per litre. {sup 137}Cs activities in soil, mainly contained within the 20 first centimeters, are weakly available for vineyard roots. (authors)

  11. Radiobiological study of the radioprotective activity of a natural Iranian compound, ''Shir-Khecht''; Etude radiobiologique de l'activite radioprotectrice d'un compose naturel Iranien: le ''Shir-Khecht''

    Energy Technology Data Exchange (ETDEWEB)

    Rouhanizadeh, N [Commissariat a l' Energie Atomique, 92 - Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

    1968-01-01

    After reviewing the primary mechanisms of the action of ionizing radiation, the possible mechanisms of the action of radioprotective substances, the various chemical structures having a protective effect and the methods for studying chemical radioprotection, the author presents the results he has obtained with natural Iranian product: ''Shir-Khecht''. Tests with this product at lethal and sublethal doses have been carried out on the rat using various means of introduction. The effect of radiation, both with and without protection, has been studied using histological and biochemical methods. The product examined has, in effect, a protective action; it is, furthermore, non-toxic and active when taken orally. (author) [French] Apres avoir rappele les mecanismes primaires de l'action des rayonnements ionisants, les mecanismes possibles de l'action des substances radioprotectrices, les diverses structures chimiques possedant un effet protecteur et les methodes d'etude de la radioprotection chimique, l'auteur presente les resultats qu'il a obtenus en utilisant un compose naturel iranien: le ''Shir-Khecht''. Des essais de ce produit, chez le rat, par diverses voies d'introduction, a dose letale et subletale ont ete effectues. L'effet des radiations, avec et sans protection, a ete etudie a l'aide de methodes histologiques et biochimiques. Le compose essaye possede un pouvoir protecteur; il est, de plus, non toxique et actif par voie orale. (auteur)

  12. Regulatory and law framework of agricultural methanization and composting activities. User's guide; Le cadre reglementaire et juridique des activites agricoles de methanisation et de compostage. Guide Pratique

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-08-15

    After a presentation of the general context of organic waste management (its techniques, materials, legal and regulatory sources, i.e. European and French laws), this guide indicates the main regulatory and law aspects to those wishing to implement a project of methanization or composting of organic by-products in the agricultural sector. Several aspects are therefore discussed and presented in practical sheets. They concern the health and environment regulation, but not the professional risk prevention (explosion, fire, and so on). These aspects are the project setting up, input materials (animal by-products, organic materials coming from agricultural production or from out of it), waste collection and transport, process steps, organic product valorization, biogas valorization, solid and liquid release management

  13. L'activité de butinage des Apoides sauvages (Hymenoptera Apoidea sur les fleurs de maïs à Yaounde (Cameroon et réflexions sur la pollinisation des graminées tropicales

    Directory of Open Access Journals (Sweden)

    Tchuenguem-Fohouo F.N.

    2002-01-01

    Full Text Available The gatering activity of wild bees (Hymenoptera Apoidea on flowers of maize at Yaound (Cameroon and further considerations on pollination of the tropical Gramineae. At Nkolbisson (Yaounde, Cameroon, in May 1991, flowers of maize (Zea mays L; Poaceae were observed for the study of pollen gathering by five different species of wild bees: one Apidae Meliponinae (Dactylurina staudingeri and four Halictidae Nomiinae (Lipotriches andrei, Lipotriches langi, Lipotriches notabilis and Leuconomia granulata. Each of these Apoidea is well attracted by pollen of maize. The larger number of bees foraging at the same time on a panicle varies from one with Dactylurina staudingeri to four with Lipotriches andrei and Lipotriches notabilis. Generally, bees forage maize during the whole day and during the full flowering period but visits are more numerous in the morning and during the period of intense flowering. Median duration of a visit on a male spikelet varies from 1 sec with Dactylurina staudingeri to 7 sec with Lipotriches andrei. These Apoidea have an elaborated behaviour when gathering pollen of maize. Dactylurina staudingeri however seems less adapted to the floral morphology of Poaceae comparing with Lipotriches. When foraging maize, all these bees are regular visitors to flowers of this plant, even in the presence of other flower species in the vicinity of the crop. Bees studied have a positive impact on the yield of grains due to a complementary action with the well known one of the wind. The influence is indirect as the bees are seldom visiting the stigmates. The explanation is that when the bees are very common on the panicles they shake the anthers, inducing the release of pollen grains in the atmosphere even in the days without wind. The part of wild bees in the increase of yields is estimated to 3/ while the one of the domestic bees (Apis mellifera is estimated to 21/ in that locality. The authors are reviewing existing literature on grass crop pollination and on Poaceae in general by various species of bees. For a better integrated crop management of maize in Cameroon, it is suggested to conserve the nesting sites of Lipotriches in surrounding areas of crops and to avoid unjustified use of pesticides during the flowering period.

  14. The transport of plutonium industry in France. A high risk activity; Les transports de l'industrie du plutonium en France. Une activite a haut risque. Resume de l'etude et rapport final

    Energy Technology Data Exchange (ETDEWEB)

    Coeytaux, X.; Faid, Y.B.; Hazemann, J.; Marignac, Y.; Schneider, M

    2003-02-15

    According to the estimations of the report more than 450 transport of materials including about 40 tons of plutonium circulate in France during one year. The nuclear matters transported are a source of danger. The risks in relation with the handling and transport of plutonium touch the criticality risk, its great toxicity, and the problem of proliferation. To these risks it is necessary to add terrorists attacks. Three scenarios of accidents have been developed to illustrate the risk potential. A scenario of train accident, with derailment in a tunnel then crash with an other train; a simple scenario occurring to a lorry of plutonium powder; then a scenario of an accident following a terrorist act. These scenarios should be studied by I.R.S.N and the results should be given to the public and to elected people confronted to the transport of plutonium. (N.C.)

  15. M.H.D. activity associated with the q=1 surface in the Tore-Supra tokamak; Activite M.H.D. associee a la surface q=1 dans le tokamak Tore-Supra

    Energy Technology Data Exchange (ETDEWEB)

    Cristofani, P.

    1996-02-12

    In order to increase the temperature, density and confinement time of the plasma energy inside tokamak devices, several heating and fuel injection techniques have been used. However, the increase of the energy content of the central part of the plasma leads to instabilities in the confinement magnetic structure which can degrade the confinement properties and the temperature performances. Inside the plasma, the ``q=1`` surface plays an important role in the confinement process. The aim of this thesis is to study the experimental physics related to this surface with the analysis of the ``saw-tooth`` periodical internal relaxations and of the ``snake`` structure. The first chapter gives a general introduction about thermonuclear fusion and a description of the plasma and of its equilibrium. Chapter 2 is devoted to the description of the soft X-ray tomography, the diagnostic technique used in this work. In chapter 3, a theoretical presentation of plasma stability and a comparison with experimental results obtained in the Tore-Supra tokamak are given. The observations of saw-tooth instabilities are presented with the principal theoretical models which are used to explain this phenomenon. The snake density instability localized in the central part of the plasma is described in chapter 4 with an attempt of interpretation. The equation of the size evolution of a magnetic island was modified to test different models which can explain the snake stability. One model is based on the modification of the bootstrap current induced by the presence of the snake, and on the local modification of the current induced by the accumulation of impurities inside the snake. (J.S.). 107 refs.

  16. Reactivity coefficients by perturbation theory; Calcul des coefficients de re activite par la theorie des perturbations; Koehffitsienty reaktivnosti, opredelennye pri pomoshchi teorii vozmushchenij; Determinacion, de coeficientes de reactividad con ayuda de la teoria de las perturbaciones

    Energy Technology Data Exchange (ETDEWEB)

    Webster, J W [International Atomic Energy Agency, Vienna (Austria)

    1962-03-15

    The development of the formulae of perturbation theory provides a good opportunity to use one of the principal devices of mathematical heuristics, i.e. proceeding by analogy from something that is simple to something that is more complicated. This paper: (a) Reviews the formulation of perturbation theory as a method of calculating reactivity coefficients; this consists mainly of developing the differential equation for the adjoint flux, as a continuous function of position and lethargy, by proceeding by analogy from the one-group differential equation for adjoint flux. (b) Presents an application of the two-group form of perturbation theory to a boiling-mercury-cooled fast-breeder reactor (MCBR). It is seen that the net Hg density coefficient of reactivity for the first-design-try for the MCBR is negative for some regions and positive for others. However, it is negative for regions of highest statistical weight and where the density change for a power change would be the greatest. The overall Hg density coefficient is thus negative, i.e. the void coefficient is positive-an unsafe condition. It can be easily seen from the two-group formulation what design changes had to be made to obtain a design which would have a negative void coefficient. It developed in subsequent investigations that there were such design changes that could be made and a design of the MCBR with a negative void coefficient was eventually achieved. (author) [French] La mise au points des formules de la theorie des perturbations fournit une bonne occasion d'employer en mathematiques une des principales regles de la methode heuristique, celle qui consiste a proceder par analogie du simple au complexe. L'auteur du memoire: a) Expose une methode permettant de calculer les coefficients de reactivite en utilisant les formules de la theorie des perturbations; en substance, cette methode consiste a developper l'equation differentielle relative au flux adjoint en fonction continue de la position et de la lethargie, en procedant par analogie a partir de l'equation differentielle a un groupe relative au flux adjoint. b) Montre comment appliquer la forme a deux groupes de la theorie des perturbations au cas d'un reacteur surgenerateur a neutrons rapides, refroidi au mercure. Lors de l'essai preliminaire du reacteur, on a constate que la variation de reactivite accompagnant une variation de densite du mercure est telle que le coefficient net de la reactivite est negatif pour certaines regions et positif pour d'autres. Il est negatif pour les regions de poids statistique le plus eleve et ou une variation de puissance entrainerait le changement de densite le plus important. Le coefficient global de densite du mercure est donc negatif, et par consequent le coefficient cavitaire est positif, ce qui est dangereux. On peut facilement voir, en employant la forme a deux groupes, quelles modifications doivent etre apportees aux plans du reacteur etudie pour obtenir un coefficient cavitaire negatif. Au cours de recherches ulterieures, il s'est revele possible d'apporter certaines de ces modifications, et l'on est finalement parvenu a etablir des plans tels que le coefficient cavitaire du reacteur soit negatif. (author) [Spanish] Las formulas de la teoria de las perturbaciones pueden establecerse empleando uno de los procedimientos mas importantes de la heuristica matematica, que consiste en partir de una expresion sencilla para llegar por analogia a una expresion mas compleja. La presente memoria: (a) Formula la teoria de las perturbaciones como metodo para calcular los coeficientes de reactividad. Consiste principalmente en desarrollar la ecuacion diferencial del flujo adjunto como funcion continua de la posicion y del letargo, procediendo por analogia a partir de la ecuacion diferencial de un solo grupo para el flujo adjunto. (b) Presenta una aplicacion de la forma de dos grupos de la teoria de las perturba ciones a un reactor reproductor rapido, refrigerado por mercurio hirviente (MCBR). Al calcular la reactividad, se comprueba que el coeficiente correspondiente a la densidad neta del mercurio en el primer proyecto del MCBR es negativo en algunas regiones, y positivo en otras. Es negativo en las regiones de peso estadistico maximo y en las que los cambios de densidad serian mayores al variar la potencia. Por lo tanto, el coeficiente global de densidad del mercurio es negativo, esto es, el coeficiente de vacios es positivo, lo que constituye una condicion que implica peligro. En la formulacion de dos grupos, se aprecia facilmente que modificaciones es preciso introducir en el diseno para que el coeficiente de cavidad sea negativo. Nuevas investigaciones demostraron que era posible introducir dichas modificaciones, lograndose establecer para el MCBR un diseno cuyo coeficiente de vacios es negativo. (author) [Russian] Razvitie formuly teorii vozmushchenij daet khoroshuyu vozmozhnost' ispol'zovat' odin iz glavnykh metodov matematicheskogo issledovaniya, t.e. proizvesti dejstvie po analogii ot prostogo k bolee slozhnomu. V ehtom doklade: a) Rassmatrivaets ya formulirovka teorii vozmushchenij v kachestve metoda rascheta koehffitsientov reaktivnosti. On sostoit, glavnym obrazom, iz razvitiya differentsial'nog o uravneniya dlya sopryazhennogo potoka kak postoyannoj funktsii polozheniya i letargii, vyvodimoe po analogii ot odnoj gruppy differentsial'nog o uravneniya dlya sopryazhennogo potoka. b) Daetsya primenenie dvukhgruppovoj formy teorii vozmushchenij dlya kipyashchego reaktorarazmnozhitelya na bystrykh nejtronakh s rtutnym teplonositelem (MCBR). Vidno, chto koehffitsient reaktivnosti rtuti nizshej plotnosti v khode pervogo ispytaniya proekta MCBR yavlyaetsya otritsatel'nym dlya nekotorykh oblastej i polozhitel'nym dlya drugikh. Odnako on yavlyaetsya otritsatel'nym dlya oblastej naivysshego statisticheskogo vesa i tam, gde izmenenie plotnosti s izmeneniem ehnergii okazyvaetsya naibol'shim. Obshchij koehffitsient plotnosti rtuti yavlyaetsya, takim obrazom, otritsatel'nym , t.e. koehffitsient poroznosti yavlyaetsya polozhitel'nym , chto predstavlyaet soboj opasnoe uslovie. Mozhno legko videt' iz dvukhgruppovoj formy, kakie izmeneniya v proekte dolzhny byt' sdelany, chtoby poluchit' proekt s otritsatel'nym koehffitsientom poroznosti. Proekt poluchil dal'nejshee razvitie v posleduyushchikh issledovaniyakh, v khode kotorykh opredeleny osushchestvimye izmeneniya dlya proekta, i proekt MCBR s otritsatel'nym koehffitsientom poroznosti byl, v konechnom schete, dostignut. (author)

  17. Activites of the radioisotopes division of IPR-CDTN-NUCLEBRAS in the studies of sedimentology and hidric polution. Atividades da divisao de radioisotopos do IPR-CDTN-NUCLEBRAS nos estudos de sedimentologia e poluicao hidrica

    Energy Technology Data Exchange (ETDEWEB)

    Aun, P E

    1979-07-01

    This work describes, in a very general way, the utilization of fluorescent and radioactive tracers in sedimentological studies. It presents the specific applications of those tracers in following the motion of sediments in suspension and in the bottom. The paper describes in short the labelling, detection and analysis techniques, as well as several actual applications of those techniques by the Radioisotopes Division of Centro de Desenvolvimento da Tecnologia Nuclear-CDTN-NUCLEBRAS. (author).

  18. Researches on the management of high activity and long-lived radioactive wastes. Axis 1 - separation-transmutation; Recherches sur la gestion des dechets radioactifs a haute activite et a vie longue. Axe 1 - separation-transmutation

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-11-15

    This document gathers the transparencies of seven presentations given at a technical workshop of the French nuclear energy society (SFEN) about the researches on separation-transmutation of high activity and long-lived radioactive wastes. The presentations deal with: inventory and radiotoxicity of the rad-wastes in concern; industrial experience; experience on chemical separation: molecules and processes; reactors physics and transmutation - reactors for transmutation; fuels and targets; scenarios that include transmutation; environmental impacts of these different scenarios. (J.S.)

  19. Activities report of the Nuclear Physics Department (CEN Saclay). 1 Oct 1966 - 30 Sep 1967; Compte rendu d'activite du Departement de Physique Nucleaire (CEN Saclay). 1 Oct 1966 - 30 Sep 1967

    Energy Technology Data Exchange (ETDEWEB)

    Cotton, E [and others

    1967-07-01

    Three parts of the report treat the questions related to the tandem, the cyclotrons and the electrons linear accelerators, then two annexes give the role of publications in this year, and the list of scientific and technical personnel. In the area of Van de Graaff and cyclotrons, progress has been made in the realisation of particles identification systems and in the methods of data processing. The starting up of the trochoidal injection has allowed an improvement of the protons polarisation rate and the intensity increase by a factor 1000. [French] Trois parties traitent des questions concernant le tandem, les cyclotrons et les accelerateurs lineaires a electrons, puis deux annexes donnent la liste des publications de l'annee et la liste du personnel scientifique et technique. Dans le domaine des Van de Graaf et cyclotrons, il faut signaler les progres dans la realisation de systemes d identification de particules et dans les methodes de traitement de donnees. La mise en service de l injection trochoidale a permis une amelioration du taux de polarisation des protons et l'accroissement de l'intensite d un facteur 1000. (auteurs)

  20. Preparation and electrocatalytic activity of platinum nano-particles in electrodes of proton exchange membrane fuel cell; Preparation et activite electrocatalytique des nano-particules de platine dans les electrodes de piles a combustible a membrane echangeuse de protons

    Energy Technology Data Exchange (ETDEWEB)

    Antoine, Olivier

    1998-07-01

    This work treats of the basic study of the reactions taking place on platinum nano-particles inside the active layers of proton exchange membrane fuel cells (PEMFC): oxygen reduction and hydrogen oxidation, and of the applied study of a method for the in-situ preparation of these particles. The study of oxygen reduction completes the previous works by confirming the effect of the particles size on the reaction kinetics (optimum of mass activity towards 3 nm of diameter), by considering the effect of the temperature and of the substrate, and also by the study of H{sub 2}O{sub 2} production at the disc-ring electrode and the reaction mechanism using impedance spectroscopy measurements: like with massive platinum in acid environment, the Damjanovic mechanism is retained for the platinum nano-particles. Hydrogen oxidation is much faster and limited by gas diffusion, and thus is more difficult to study. This work required the use of sophisticated correction programs and of an original geometry (very thin active layer: L < 1 {mu}m) to show a clear effect of the particle size on the kinetics: the catalytic activity increases with the smallest particles. This study has also tried to precise the poorly known reaction mechanism: the Heyrovsky-Volmer mechanism has been retained but it needs to be confirmed. The optimization of the catalyst used requires 3 nm particles for a maximum oxygen reduction mass activity and mass percentages Pt/(Pt+C)30% in order to minimize the thickness of the active layer and the diffusion limitations. An original in-situ electrochemical method respecting these conditions has been developed. Starting from carbon impregnated with platinum salts, it allows the deposition of catalyst nano-particles on the carbon in Nafion. (J.S.)