WorldWideScience

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

    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

  2. La syphilis congenitale revelee par une fracture spontanee

    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.

  3. Fragmenter une activité à risque

    Salies, Evens; Mondello, Gérard

    2007-01-01

    La libéralisation de l'activité d'un secteur économique à céder des actifs des entreprises historiques à de nouveaux entrants. Dans cet article, nous montrerons que lorsqu'il s'agit d'une activité à risque, le gain de la fragmentation de cette activité ne peut être évalué sans prendre en compte l'impact en termes de sureté.Pour cela nous utilisons le concept de dominance stochastique que nous appliquons à la comparaison des coûts espérés, avant et après fragmentation. Les résultats obtenus so...

  4. Alter ego + cahier d'activités : A2

    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.

  5. SENSORY MARKETING, une activité transdisciplinaire anglais/distribution

    Marie-Annick Mattioli

    2012-04-01

    Full Text Available 6IntroductionCette fiche pédagogique retrace les objectifs, la mise en œuvre et les résultats d’une activité transdisciplinaire développée avec des étudiants de deuxième année du département Techniques de Commercialisation de l’IUT Paris Descartes. Cette activité a été réalisée en deux temps : d’abord un voyage d’études à Londres, entre le 20 et le 22 novembre 2009, qui a permis de faire découvrir à nos étudiants certaines enseignes commerciales à la pointe du marketing sensoriel ; ensuite, u...

  6. SENSORY MARKETING, une activité transdisciplinaire anglais/distribution

    Marie-Annick Mattioli; Chantal Lacourarie

    2012-01-01

    6IntroductionCette fiche pédagogique retrace les objectifs, la mise en œuvre et les résultats d’une activité transdisciplinaire développée avec des étudiants de deuxième année du département Techniques de Commercialisation de l’IUT Paris Descartes. Cette activité a été réalisée en deux temps : d’abord un voyage d’études à Londres, entre le 20 et le 22 novembre 2009, qui a permis de faire découvrir à nos étudiants certaines enseignes commerciales à la pointe du marketing sensoriel ; ensuite, u...

  7. Activités pédagogiques internationales transdisciplinaires

    Clisson, Adelinde; Zuliani, Régine

    2014-01-01

    Constatant et déplorant la place réduite et souvent marginale réservée aux langues dans les cycles courts et professionnalisés, nous avons mis en place différentes activités impliquant autant les enseignants de langues que ceux des matières professionnelles des départements TC (IUT de Colmar) et GLT (IUT de Mulhouse) de l’Université de Haute Alsace. Cette recherche pédagogique a pour but de mieux intégrer les langues dans les cursus professionnalisés et de permettre aux étudiants d’acquérir à...

  8. Activités du Laboratoire ORSTOM de zoologie médicale

    Camicas, Jean-Louis; Hervy, Jean-Paul; Hervé, Jean-Pierre; Ferrara, Léo; Cornet, Jean-Paul; Hébrard, Georges; Adam, François; Wilson, M L; Gordon, S.W.

    1989-01-01

    Cet article consigne les activités en 1988 du Laboratoire ORSTOM de zoologie médicale à Dakar, concernant les études sur l'écologie des arbovirus à vecteurs culicidiens, et sur les arboviroses à vecteurs ixodidiens

  9. 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

    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

  10. L'activité de la NADPH oxydase : une nouvelle cible pour la curcumine ?

    Derochette, Sandrine

    2015-01-01

    La NADPH oxydase (Nox2) des neutrophiles (PMNs) est une enzyme multi-protéique responsable de la production d'espèce activées de l'oxygène (ROS) pour la destruction des pathogènes. L'activation excessive des PMNs est souvent associée à des pathologies mortelles chez le cheval, faisant de l'activité de la Nox2 une cible thérapeutique privilégiée. Le premier but de ce travail, a été de développer une méthode appelée "cell-free system" (CSF) pour mesurer l'activité in vitro de la Nox2 équine. Un...

  11. Mesure de l'activité nitrate réductase durant le cycle cultural du soja (Glycine max L Merr). Répartition dans la plante et relation avec l'activité nitrogénase

    Kimou, A; Obaton, M; Drevon, J. J.

    1993-01-01

    Les 2 voies de nutrition azotée, assimilation du nitrate et fixation de l’azote de l’air, ont été étudiées chez le soja (cv Hodgson), inoculé avec Bradyrhizobium japonicum USDA 138. L’évolution des 2 activités enzymatiques, nitrate réductase et nitrogénase, au cours du cycle de développement du soja en serre et au champ, indique que l’activité nitrate réductase est maximale au début du cycle et localisée dans les feuilles du sommet de la plante tandis qu’après la floraison cette activité est ...

  12. Modélisation des activités humaines en mer côtière

    Le Guyader, Damien

    2012-01-01

    Les mers côtières jouent un rôle essentiel pour les sociétés humaines. Mais la concentration et la diversité des activités qui s'y développent exercent une pression croissante sur cet espace et les milieux associés en générant des interactions parfois conflictuelles entre activités. La compréhension de ces interactions constitue un enjeu en termes de recherche et pour la société civile. Une méthodologie visant à décrire la distribution spatio-temporelle de différentes activités en mer côtière...

  13. Sentiers de trekking et activités de portage au Népal

    Sacareau, Isabelle

    2005-01-01

    En l'absence d'infrastructures de transport suffisantes, une grande partie de la vie de relation au Népal s'effectue grâce à un dense réseau de sentiers. Dans les montagnes du pays qui couvrent les deux tiers du territoire, les marchandises se transportent toujours à dos d'hommes, donnant naissance à une activité salariée de portage à gage, qui s'inscrit dans la pluriactivité montagnarde. Cependant, depuis une trentaine d'années, le tourisme de trekking a superposé ses propres itinéraires au ...

  14. Reconstruire et valoriser les liens entre les arbres et les activités agricoles

    Vigan, Martin; Deconchat, Marc; Andrieu, Emilie,

    2015-01-01

    Ce document est le fruit d'une réflexion sur la place des arbres dans les activités agricoles conduite lors des projets CHAPAY (Changement d’utilisation agricole des terres et dynamique des paysages agri-forestiers de Midi-Pyrénées) et Terafor (Territoire et agroforesterie). Les arbres font traditionnellement partie intégrante de la plupart des paysages agricoles. Aujourd’hui, la recherche de pratiques plus durables et le besoin de diversification des productions des agriculteurs conduisent ...

  15. Références scientifiques en ligne : folksonomies et activité des groupes

    Besagni, Dominique; Broudoux, Evelyne; Fabry, Cécilia; François, Claire; Roussel, Clotilde

    2011-01-01

    International audience This paper presents the results of a comparison between four online references manager services (CiteUlike, Bibsonomy, Connotea and 2Collab). We focus on the groups activity and try to detect the representation of the scientific domains. Cet article se propose de comparer l'activité des groupes de travail sur les serveurs d'enregistrements de références scientifiques en ligne : CiteUlike, Bibsonomy, Connotea et 2Collab et de repérer les domaines scientifiques repr...

  16. Rapport d'activité 2008-2010 : Culture Scientifique et Technique

    Le Gall, Alain-Hervé; Jézéquel, Isabelle; Bernard, Dominique; Canard, Alain

    2011-01-01

    C'est à cet objectif que tente de répondre l'Université de Rennes 1 en organisant des activités regroupées sous le terme générique de " culture scientifique et technique ". Notre université compte de nombreux laboratoires mixtes réunissant à la fois universitaires (enseignants-chercheurs et personnels BIATOSS), chercheurs et ITA des grands organismes de recherche qui ont tous cette mission ou cette passion de diffusion des connaissances et d'éducation à la culture scientifique. Ceux-ci n'hési...

  17. Nouvelles géographies des activités extractives 

    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...

  18. Analyse statistique des profils et de l’activité des participants d’un MOOC

    Bar-Hen, Avner; Javaux, Hubert

    2016-01-01

    L’acronyme MOOC (Massive Online Open Course) est utilisé pour désigner les plateformes d’enseignement en ligne qui proposent des cours ouverts et qui peuvent s’adresser à des centaines, des milliers, voire des dizaines de milliers d’étudiants simultanément. Le but du présent article n’est pas de proposer une analyse du phénomène MOOC dans sa généralité, mais d’offrir une vision originale d’un MOOC, au travers de ses étudiants, de leur profil et de leur activité lors du cours. Pour ce faire, n...

  19. La gestion territoriale de l'activité agricole dans un village lorrain

    M. Benoit

    1990-12-01

    Full Text Available Les relations que les agriculteurs d’un village lorrain entretiennent avec leur territoire sont dynamiques. En un siècle, la répartition des cultures est devenue concentrique, centrée sur le bâti villageois, et la «sortie» des bâtiments agricoles de leur «gangue» villageoise a été un facteur décisif de cette dynamique. Les conséquences de cette actuelle gestion territoriale de l’activité agricole sont multiples et concernent le fonctionnement interne aux exploitations du village, les transferts de fertilité, donc les risques de pollution des eaux souterraines, et la création d’un paysage.

  20. Evaluation de l'activité antimicrobienne de quelques pyridones de synthèse

    OUGGAD, Hayet

    2015-01-01

    Notre travail s'inscrit dans le cadre de l'évaluation de l'activité antibactérienne et antifongique de quelques dérivés pyridones de synthèse préparés par l'équipe du professeur Chekchou-Braham Noureddine au laboratoire de catalyse et synthèse en chimie organique (LCSCO) Faculté des Science de la Nature et de la vie, Science de la terre et de l'Univers, Université Aboubekr Belkaïd Tlemcen. Cette étude a été réalisée à l'aide de la méthode de diffusion de disques sur milieu soli...

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

    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...

  2. Quelle place pour les activités pastorales dans la reconversion économique du Vicdessos (Pyrénées ariégeoises) ?

    Pierre DÉRIOZ; Loireau, Maud; Bachimon, Philippe; Cancel, Églantine; Clément, David

    2014-01-01

    Composante ancienne majeure de la formation des paysages montagnards du Vicdessos (Ariège), les activités pastorales ont été marginalisées durant la phase de plein emploi liée à l’activité industrielle : « l’ère Pechiney » (1906-2003) a favorisé la déprise et le retour de la forêt sur les versants et dans certains fonds de vallée. À l’heure de la reconversion volontariste de ce petit territoire vers les activités récréatives de pleine nature (station sport nature du Montcalm) la petite vingta...

  3. Coproduction et partage de documentation francophone de qualité sur le prototypage rapide : une activité d'inspiration socioconstructiviste soutenue par les TIC

    Sylvie Doré

    2004-01-01

    [Français] Le cours « MEC626 - Prototypage rapide » est centré sur une activité d’apprentissage nommée « séminaire » grâce à laquelle des étudiants coproduisent de la documentation francophone de qualité formant une partie importante des notes de cours. D’inspiration socioconstructiviste, cette activité apprend aux étudiants à utiliser des outils et à développer des savoir-faire qui leur seront utiles lors de l’exercice de leur profession. Au total, sept technologies sont mises en œuvre pour ...

  4. Entre activités, parcours et formation des cadres de santé, quels processus de construction des compétences ?

    Reinhardt, Sophie; Bercot, Régine

    2011-01-01

    Auparavant appelés surveillants, ou plutôt surveillantes puisque l'activité est largement féminine, les cadres de santé exercent une activité qui existe dans les établissements hospitaliers depuis leur origine : l'organisation et la supervision des services de soin. Ils peuvent également exercer dans les Ecoles d'infirmières (IFSI) en tant que cadres formateurs. Cependant, les missions et le statut de ces surveillants ont beaucoup évolué. En effet, les progrès médicaux et techniques de l'acti...

  5. Activités du Cemagref en épuration des eaux et traitement des effluents d'élevage

    Héduit, A.

    2010-01-01

    / Le Cemagref développe depuis les années 70 des travaux destinés à améliorer l'efficacité des stations d'épuration des eaux usées et des procédés de traitement des effluents d'élevage. L'ensemble de ces activités est mis en oeuvre dans le cadre de l'axe EPURE du thème de recherche Technologies et procédés pour l'Eau et les Déchets (Axe TED-E) qui regroupe une cinquantaine de personnes localisées à Antony, Bordeaux, Lyon et Rennes dont une vingtaine d'ingénieurs et de chercheurs travaillan...

  6. Informatisation et organisation des activités administratives - essais d'approches théoriques et empiriques

    Lahittete, Michel

    2006-01-01

    La thèse étudie les aspects des liens entre informatisation, organisation, environnement et efficience des activités administratives qui n'ont pas été envisagés par les modèles s'inspirant de la théorie des équipes et se propose de les vérifier empiriquement. D'abord, l'effet de l'informatisation sur l'efficience et la diffusion des technologies dépend de l'organisation a laquelle s'applique l'informatisation. Ensuite le changement organisationnel se manifeste quand l'informatisation dépasse ...

  7. activité fer métal/smectites en milieu hydraté à 80°C

    Lantenois, Sébastien

    2003-01-01

    Les dispositifs de stockage envisagés pour les déchets nucléaires de haute activité font intervenir une barrière ouvragée argileuse (smectites) ainsi que des conteneurs métalliques (fer). La diffraction des rayons X, la spectrométrie infrarouge et la microscopie électronique à transmission (pour l'analyse chimique et l'état d'oxydation du fer) permettent de déterminer l'évolution du système fer métal/smectites dans un milieu hydraté à 80°C. Le taux de déstabilisation des smectites en présence...

  8. Analyse de l'activité des enseignants de chimie organique autour du contenu enseigné

    Lafarge, David; Morge, Ludovic; Méheut, Martine

    2009-01-01

    La chimie organique est souvent reconnue comme une discipline difficile à enseigner et à apprendre. Pour comprendre l'origine de cette difficulté nous avons étudié l'activité des enseignants de chimie organique jusqu'à bac+2. Nos résultats montrent que la structuration des contenus est très répandue (principaux outils théoriques, puis principales familles de molécules), la stratégie de synthèse organique est peu traitée et l'élaboration des mécanismes réactionnels ne fait pas l'objet d'une ac...

  9. DÉPISTAGE DES ACTIVITES ANTIOXYDANTE, ANTIBACTERIENNE ET ANTIFONGIQUE DE L’HUILE ESSENTIELLE EXTRAITE DES CALICES SECHÉS D’Hibiscus sabdariffa L.

    M. L. Sow; Barkat, M.; MAOUGAL R.T.

    2014-01-01

    L’extraction de l’huile essentielle à partir des calices séchés d’Hibiscus sabdariffa L. a été réalisée par hydrodistillation. Le rendement moyen en huile essentielle obtenu est de 0,77% ±0,44. L’activité antiradicalaire de l’huile essentielle a été mise en évidence par la méthode de 1,1 Di-Phényl 2 PycrilHydrazil (DPPH)) et antioxydante par le test de blanchiment du β-carotène. L’activité antibactérienne de l’huile essentielle testée par la méthode de diffusion des disques sur gélose AMH et ...

  10. L’activité peut-elle être objet d’ “analyse”? = A atividade pode ser objeto de “análise”?

    Schwartz, Yves

    2015-01-01

    Full Text Available Dans le cadre d’une confrontation entre divers chercheurs de sciences humaines sur le concept d’activité, ce texte trace d’abord une brève histoire de ce concept tel que la démarche ergologique l’a progressivement construit, à partir de son histoire philosophique et des rencontres que ses protagonistes ont pu faire depuis plus de trente ans. Avec le concept d’activité comme dramatique d’usage d’un corps-soi, une vision anthropologique s’est peu à peu imposée: l’activité comme renégociation permanente des normes générées et/ou instituées dans l’histoire apparaît comme la forme spécifiquement humaine du vivre, le travail étant en son sein un lieu particulièrement dense de débats avec ces normes dont le corps-soi est le creuset. Le texte propose alors d’approfondir les implications de ce concept de débat de normes, comme fabricateur d’histoire, comme reproblématisant le champ de l’épistémologie, comme convoquant un univers axiologique au creux de tout agir individuel et collectif. A l’approcher ainsi, ce concept déplace le problème des rapports micro/macro, déterminations sociales/ créativités singulières, des divers empans temporels où nous avons à traiter ces débats, des niveaux innombrables où ils se jouent au sein de notre corps-soi. Ce texte en conclut que si le concept d’activité est ainsi approché, l’idée qu’on puisse en avoir des “méthodes d’analyse” paraît peu acceptable. Par contre, avec l’aide de toute méthode désimplifiant le travail, l’effort d’analyse du travail comme activité nous paraît à développer, pour donner visibilité et avenir aux réserves d’alternative que tout agir humain produit sans relâche

  11. Biodiversité en forêt et activités humaines, un compromis est nécessaire

    La rédaction

    2012-01-01

    Full Text Available La rédaction vous propose de redécouvrir une partie des articles consacrés à la forêt publiés dans le numéro 3 « Politiques publiques et biodiversité, problématiques scientifiques, enjeux politiques et actions locales » de Sciences Eaux Territoires, la revue d'Irstea. Cette synthèse a été réalisée dans l'objectif de resituer la question de la dynamique des écosystèmes forestiers dans un contexte d'incertitude sur les impacts liés au changement climatique et aux pressions dues aux activités humaines. Elle permet d'apprécier l'étendue des domaines de recherche appliqués à la forêt à Irstea, et des réponses apportées en termes d'appui aux politiques publiques.

  12. Analyse de la motivation pour les mathematiques d'eleves du secondaire participant a une activite de programmation informatique

    Ouellette, Jean-Michel

    Au Quebec, le decrochage scolaire cause par un manque de motivation de la part des eleves est une preoccupation actuelle. Dans une societe de savoirs ou les technologies prennent une place de plus en plus grande, il apparait important d'explorer toutes les pistes de travail quant a l'amelioration de la motivation scolaire des jeunes. Plus precisement, sachant qu'il existe des liens concrets entre la programmation informatique et les mathematiques, nous avons analyse l'apport possible de l'apprentissage de la programmation informatique a la motivation pour l'apprentissage des mathematiques. Trois eleves de troisieme secondaire ont participe a cette etude multicas. Selon les resultats d'analyse, tous les eleves ont vecu une amelioration de leur motivation a apprendre les mathematiques. A la lumiere de l'analyse de ces resultats, nous proposons une explication relativement aux liens possibles entre la participation des eleves a une activite parascolaire de programmation informatique et l'amelioration de leur motivation pour l'apprentissage des mathematiques.

  13. 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

    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.)

  14. DÉPISTAGE DES ACTIVITES ANTIOXYDANTE, ANTIBACTERIENNE ET ANTIFONGIQUE DE L’HUILE ESSENTIELLE EXTRAITE DES CALICES SECHÉS D’Hibiscus sabdariffa L.

    SOW M. L.

    2014-06-01

    Full Text Available L’extraction de l’huile essentielle à partir des calices séchés d’Hibiscus sabdariffa L. a été réalisée par hydrodistillation. Le rendement moyen en huile essentielle obtenu est de 0,77% ±0,44. L’activité antiradicalaire de l’huile essentielle a été mise en évidence par la méthode de 1,1 Di-Phényl 2 PycrilHydrazil (DPPH et antioxydante par le test de blanchiment du β-carotène. L’activité antibactérienne de l’huile essentielle testée par la méthode de diffusion des disques sur gélose AMH et par la méthode de microatmosphère sur Pseudomonas sp, Klebsiella oxytoca, Echrichia coli et Streptocoque sp. a montré une résistance de ces souches vis-à-vis de l’huile essentielle d’Hibiscus sabdariffa L.. L’activité antifongique de l’huile essentielle, testée sur Aspergillus sp.,Alternaria sp.et sur Penicillium sp.par la méthode de diffusion des disques sur milieu sabouraud, a montré une résistance de Penicillium sp. et d’Aspergillus sp., et une résistance temporaire d’environ 72h pour la souche Alterneriasp.

  15. Etude ethnobotanique, phytochimique et activités biologiques de Nauclea latifolia Smith, une plante médicinale africaine récoltée au Mali

    Badiaga, Mamadou

    2011-01-01

    Nauclea latifolia Smith (Rubiaceae) est une plante aux vertus médicinales beaucoup plus connues en Afrique sub-saharienne dans la pharmacopée traditionnelle pour ses nombreuses activités pharmacologiques. N. latifolia Sm. est un arbre ou arbuste d'espèce soudano-sahélienne ; ses zones d'abondance sont principalement l'Afrique Occidentale et Centrale. Sa large utilisation en médecine traditionnelle , nous a incités à réaliser une enquête ethnobotanique et un screening phytochimique afin de met...

  16. EVALUATION DE L'ACTIVITE ANTIOXYDANTE DES HUILES ESSENTIELLES D'AMMOIDES VERTICILLATA « NOUKHA » DE LA REGION DE TLEMCEN

    ABBES, Amal

    2015-01-01

    Vu la diversité et la gravité des maladies qu'induit le stress oxydant, plusieurs équipes de chercheurs se sont investis dans la recherche de nouveaux antioxydants en vu de lutter contre le stress oxydant et ses pathologies associées. Cette étude se propose donc d'évaluer l'activité antioxydante des huiles essentielles d'Ammoides veriicillafa. L'extraction des huiles essentielles a été effectuée par hydrodistillation avec un appareil de type Clevenger et qui ont fourni un re...

  17. 翻译:以人为本的交际活动%Traduction:statut de l'homme dans les activités de traduction

    汪捷宇

    2004-01-01

    Cet article a pour objectif d' introduire l'homme comme point de tangence dans les activites de la traduction. Inspire pay la bnotion d'Abraham Lincoln - """"of the people, by the people, for the people""""-, l'auteur essaie de reconstituer le statut de l'homme dans la traduction. A la lumiere d'une 《anthropologie》 de la traduction, cet article invite a en modifier la conception dans la problematique de “Qui traduit ? Pour qui traduit-on ? Que traduire ?”.

  18. Concept de développement de l'activité VTT en vue de dynamiser la saison estivale d'une destination alpine: le cas de Verbier

    Pellissier, Nancy; Délétroz, Nicolas

    2012-01-01

    La dynamisation du tourisme estival des destinations alpines préoccupe de plus en plus les responsables touristiques. Des hivers plus courts et plus chauds, une volonté de rentabiliser les installations et infrastructures touristiques sur l’année ou encore l’engouement pour les destinations de montagne durant les vacances estivales, sont autant de raisons qui poussent les acteurs touristiques à se positionner sur leur tourisme d’été. Dans ce contexte, le développement de l’activité VTT prend ...

  19. Prise en compte des schémas cognitifs dans la scénarisation des activités d'enseignement

    Dessus, Philippe; Pernin, Jean-Philippe; Lejeune, Anne

    2007-01-01

    Cet article met en perspective deux champs de recherche indépendants, celui de l'étude de la cognition des enseignants et celui de la scénarisation pédagogique, autour d'un objet central : le schéma. Nous passons tout d'abord en revue les différents types de schémas (routines, scripts, recettes), pour montrer ensuite comment ils sont mis en oeuvre dans l'activité d'enseignement, et plus particulièrement à quatre fins : agir en situation, planifier l' enseignement, comprendre une situation et ...

  20. Approche immunoprotéomique : valeurs et limites pour l'identification de réactivités discriminantes d'anticorps auto-immuns

    Dubucquoi, Sylvain

    2012-01-01

    Dans le cadre du diagnostic biologique des maladies auto-immunes, les autoanticorpssont généralement recherchés par des méthodes qui utilisent des antigènes(ou peptides) présélectionnés. De telles techniques ont des limites qui pourraient êtrecontournées par de nouvelles approches. Dans le premier temps de ce travail, nousrapportons l'intérêt d'évaluer les réactivités d'auto-anticorps vis-à-vis de ciblesmodifiées par des processus post traductionnels, comme la citrullination dans lecadre diag...

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

    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.

  2. Suivi des activités de prévention du VIH/sida dans le canton de Genève en 2008

    Huissoud Thérèse; Lociciro Stéphanie; Gumy Cédric; Meystre-Agustoni Giovanna; Balthasar Hugues; Dubois-Arber Françoise

    2009-01-01

    [Table des matières] 1. Objectifs d'évaluation pour 2007-2008 ; Evaluation juin 2008 - avril 2009. - 2 Données de la surveillance biologique et comportementale: Nouvelles déclarations de tests VIH positifs à Genève ; Comportements face au VIH/sida. - 3 Suivi des activités des associations : Consolidation du projet VCT (conseil et dépistage volontaire du VIH) Migrants ; Trois types de scénarii et choix ; Groupe Sida Genève (GSG) ; Dialogai ; L'association Première ligne ; Association Solidarit...

  3. « Luxury entrepreneurship » ou l’entrepreneuriat du luxe : des opportunités de demain pour des activités « human push » ?

    Fonrouge, Cecile; Reboud, Sophie; Vigneron, Franck

    2013-01-01

    S i, en première approche, on définit l'entrepreneuriat du luxe comme celui qui vise l'exploration et l'exploi-tation d'opportunités d'affaires intenses en savoir-faire, alors on obtient une opposition entre activités tirées par les hautes technologies « High tech » et celles poussées vers ces savoirs indissociables des acteurs qui les portent ou « Human tech ». Cette opposition est factice et va à l'encontre même d'une transversalité des disciplines pour la conduite des organisations. Autrem...

  4. Composition chimique et activité antimicrobienne de l’huile essentielle de Thymus vulgaris du Nord d’Algérie

    Sidali, L.; Brada, M.; Fauconnier, Marie-Laure; Lognay, Georges

    2014-01-01

    Ce travail vise à l’étude de la composition chimique et de l’activité antibactérienne et antifongique de l’huile essentielle de Thymus vulgaris vis-à-vis de cinq microorganismes (S.P. Sterptococcus, staphylococcus aureus, E.coli, Klebscila et condidat albicans). La composition chimique de l’huile essentielle isolée par hydrodistillation des parties aériennes de Thymus vulgaris a été analysée par GC/MS. Vingt-cinq composés représentant 98.6% de la composition chimique globale. Les constituants...

  5. Evaluation in vitro de l'activité antifongique de quinze extraits végétaux. Tests sur Candida albicans isolé au C.H.0 de Tlemcen

    MAROUF Mr. RAMDAOUI, Mourad Anwar

    2012-01-01

    En raison de leur incidence et de leur épidémiologie, les candidoses à Candida albicans sont un problème préoccupant de santé publique. Les limites des thérapeutiques existantes a conduit à la recherche de nouvelle source, notamment chez les plantes. Notre travail a porté sur l'évaluation de l'activité antifongique des extraits de quinze plantes utilisées en médecine traditionnelle. Les extraits ont été soumis à un criblage pour leur éventuelle activité antifongique in vitro, c...

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

    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

  7. Coproduction et partage de documentation francophone de qualité sur le prototypage rapide : une activité d’inspiration socioconstructiviste soutenue par les TIC

    Sylvie Doré

    2004-03-01

    Full Text Available [Français] Le cours « MEC626 - Prototypage rapide » est centré sur une activité d’apprentissage nommée « séminaire » grâce à laquelle des étudiants coproduisent de la documentation francophone de qualité formant une partie importante des notes de cours. D’inspiration socioconstructiviste, cette activité apprend aux étudiants à utiliser des outils et à développer des savoir-faire qui leur seront utiles lors de l’exercice de leur profession. Au total, sept technologies sont mises en œuvre pour soutenir l’activité. Parmi celles-ci, mentionnons une variété de moteurs de recherche utilisés pour trouver l’information pertinente, un logiciel de gestion de notices bibliographiques servant à classifier l’information et à produire une base de données collective et le transfert FTP permettant l’échange de documents et agissant comme vitrine de travaux. Le séminaire permet non seulement aux étudiants de se familiariser avec le contenu du domaine, mais il leur offre également l’occasion de maîtriser un ensemble d’outils et de méthodes exploitant les TIC, et de vivre une expérience à la fois significative et pertinente. [English] The course MEC626 Prototypage rapide is centred around a learning activity called the Seminar, in which students coproduce high-quality French-language documentation that makes up a large part of the course notes. Social-constructivist in inspiration, this activity mobilizes the students to use tools and develop knowhow that will be useful to them in the practice of their profession. In all, seven technologies support the activity. Most noteworthy among them are : a variety of search engines that are used to find relevant information ; a bibliographical management software that is useful for categorizing information and producing a collective database ; and FTP transfer which allows the exchange of documents and serves as a showcase for student assignments. Not only does the Seminar

  8. Effets du zirconium, du manganèse et du titane sur la thermoluminescence et la réactivité de l'alumine-alpha

    Sallé, Christian

    2003-01-01

    Pour obtenir des matériaux céramiques aux propriétés contrôlées il est le plus souvent fait appel à l'utilisation d'additions minérales en faible quantité. Ces ajouts permettent de favoriser la densification ou de contrôler le phénomène de grossissement des grains, ou encore de modifier les propriétés mécaniques, physiques ou optiques.Cette étude a pour objectif de caractériser et de modéliser l'action de certains dopants à la fois sur la réactivité et la microstructure, et sur les propriétés...

  9. Évaluation de l’activité antidiabétique de l’extrait aqueux des feuilles de vitex madiensis en phytothérapie.

    Tshibumbu KE; Ngoie KM; Ndibualonji BBV; Mwamba MF; Bakadia BM; Kasamba IE

    2014-01-01

    Notre étude a eu comme objectif d’évaluer l’activité hypoglycémiante de Vitex madiensis, une plante utilisée en phytothérapie antidiabétique, sur les animaux de laboratoire choisis comme matériel d’expérience. Les 4 groupes de cobayes nommés A, B, C et D en raison de 3 cobayes par groupe, ont chacun reçu d’abord une surcharge en glucose en concentration égale. En plus, les différents groupes ont reçu respectivement la solution du glibenclamide (A), l’extrait aqueux des feuilles de Vitex madie...

  10. Modélisation des processus physico-chimiques nuageux : études de la réactivité de la matière organique

    Long, Yoann

    2012-01-01

    Dans l'atmosphère, la matière organique est omniprésente et joue un rôle important par son action sur le bilan radiatif de la Terre et par son impact sur la santé publique notamment dans les zones fortement polluées. A ce jour plus de 10000 Composés Organiques Volatils différents ont été identifiés dans l'atmosphère. Leurs propriétés physico-chimiques (solubilité, volatilité, réactivité, ...) sont variées et mal documentées. Leur distribution est perturbée par la présence de nuage qui représe...

  11. Etude de l’activité antibactérienne de l’huile essentielle de Lavandulaofficinalisde la région de Tlemcen

    CHEMLOUL, Feyza

    2014-01-01

    é Plusieurs travaux de recherche ont été concentrés sur les huiles essentielles extraites des plantes aromatiques. Les différents résultats publiés indiquent qu’elles sont douées de plusieurs propriétés biologiques. Dans ce contexte, nous avons essayé d’évaluer in vitro l’activité antibactérienne de l’huile essentielle extraite des fleurs sèches de Lavandula officinalis. L’extraction a été réalisée par hydrodistillation des sommités fleuris de la plante, le rendement a ét...

  12. Entomofaune associée à Jatropha curcas (Euphorbiaceae) au Niger et évaluation de l'activité insecticide de son huile

    Abdoul Habou, Zakari

    2013-01-01

    Résumé Jatropha curcas L. est un arbuste de la famille des Euphorbiacées originaire d’Amérique centrale. Cette plante est cultivée pour son huile, valorisée dans la production de biocarburant. Cette huile possède également une activité insecticide qui constitue un second volet de valorisation de la plante. Malgré la toxicité de la plante, de nombreux insectes causent des dégâts non négligeables au niveau des inflorescences, fruits et/ou des feuilles, réduisant considérablement le rendement...

  13. "Made in France " et déterminants de la relocalisation des activités productives des PME : le cas Easybike

    Dominguez, Noémie; Mercier-Suissa, Catherine

    2014-01-01

    La fin des Trente Glorieuses s'est soldée, en France, par des mouvements massifs de délocalisation des activités productives principalement à destination des pays à bas coûts de main d'œuvre (Bouba-Olga O., 2006). De nombreuses PME produisant des biens de consommation ont à leur tour délocalisé, dans les années quatre-vingt, toute ou une partie de leur production afin de pénétrer de nouveaux marchés et/ou réduire leurs coûts de production (Chanteau J.-P., 2008). Aujourd'hui, ces entreprises s...

  14. Etudes théoriques de la réactivité chimique : des méthodes statiques à la métadynamique

    Michel, Carine

    2007-01-01

    Nous avons mis en évidence les enjeux et difficulités liés àl'étude théorique de la réactivité à travers des systèmes chimiques variés: complexe biomimétique des phosphatases, réaction d'acétalisation/cyclisation tandem, réaction de Pauson-Khand. Au cours de cettedernière étude, nous avons été amené à proposer une nouvelle calibrationdes sources électrospray.Pour dépasser les limites des méthodes usuelles, nous avons utiliséla métadynamique. Cette méthode permet d'échantillonner l'espacedes p...

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

    Nabil GHEDADBA; Leila HAMBABA; M. C. ABERKANE; S. M. Oueld-Mokhtar; Nassima FERCHA; Houas BOUSSELSELA

    2016-01-01

    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 ...

  16. L'information sur les durées de parcours. Modélisation de l'activité cognitive impliquée

    CAMBON DE LAVALETTE,B

    2002-01-01

    Depuis quelques années, les voies rapides urbaines sont équipées de dispositifs appréciés des usagers, qui informent sur les durées de parcours. Des observations de l'incidence des messages sur les conducteurs ont été réalisées : ces messages permettraient de prendre des décisions adaptées, de mieux gérer le temps et de la, l'activité dans les encombrements. Afin de comprendre les raisons pour lesquelles le contenu de ces messages incite à ce comportement, l'auteur à cherche à élaborer, sous ...

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

    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)

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

    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

  19. Faiblesse de la main-d'oeuvre familiale et diversification des activités dans les exploitations agricoles de la zone cotonnière en Centrafrique : quel enseignement pour le conseil de gestion aux agriculteurs ?

    Emmanuel, Mbetid-Bessane; Gafsi, Mohamed

    2003-01-01

    En zone cotonnière de la Centrafrique, les agriculteurs ont diversifié leurs activités en dépit de la faiblesse de la main-d'oeuvre familiale. L'objet de l'étude était de comprendre les pratiques de gestion de la main-d'oeuvre qui permettaient à ces agriculteurs d'assurer la diversification des activités. La mise au point de cette étude a reposé sur le suivi rapproché de 30 exploitations pendant la campagne agricole 1999-2000. En outre l'observation des pratiques de gestion globale de l'explo...

  20. Apprentissages informels dans l’activité : dispositif de participation et processus d’engagement du remplaçant en masso-kinésithérapie

    Olry, Paul

    2011-01-01

    Chacun convient que l’on peut apprendre en travaillant, bien que la nature de cet apprentissage soit parfois difficile à définir. C’est dire que des apprentissages informels se réalisent dans le cours de l’activité professionnelle. L’étude présentée ici s’appuie sur l’analyse des échanges lors des remplacements d’un praticien kinésithérapeute avec son remplaçant. Les dimensions non formelles de l’activité émergent lors de leur mise au débat. La première condition est l’existence d’un disposit...

  1. Observatoire du développement professionnel des néo-titulaires en collèges " Ambition Réussite " : trajectoires, activités et identités

    Ria, Luc; Rouve-Llorca, Marie-Estelle

    2010-01-01

    Le développement professionnel des enseignants du second degré en début de carrière est étudié pour ce texte selon des empans temporels longs à partir de deux focales distinctes, l'une singulière, l'autre typique : a) la description du flux annuel de l'activité en classe et hors classe d'une néo-titulaire en éducation physique et sportive permettant de mettre en évidence l'évolution de ses préoccupations professionnelles et b) la modélisation d'une activité vécue de manière critique par la ma...

  2. L'évolution de l'activité de contrôle de gestion en contexte PME : une focalisation sur le suivi des marges et le pilotage du changement

    Van Caillie, Didier

    2002-01-01

    L'activité de contrôle de gestion menée en contexte PME est aujourd'hui devenue véritablement bicéphale, intégrant à la fois un contrôle de gestion opérationnel dominé par la volonté de maîtrise à court terme des coûts et surtout des marges qui traversent la vie quotidienne de l'entreprise au travers de toutes ses activités et un contrôle de gestion stratégique dominé par la volonté de permettre le pilotage effectif du changement dans l'entreprise, changement lui-même issu de l...

  3. Les représentations de l’activité agricole dans les projets de territoires périurbains : exemple de trois Pays en Midi-Pyrénées

    Duvernoy, Isabelle; Barthe, Laurence; Lima, Stéphanie

    2012-01-01

    Pour étudier les représentations de l’activité agricole locale inscrites dans la construction des territoires de projet, nous proposons une grille de lecture systématisée de ces représentations s’inspirant de deux théories géographiques de la construction du territoire et de la territorialisation des activités. Nous mettons à l’épreuve cette grille dans trois Pays de Midi-Pyrénées, tous trois marqués par une forte périurbanisation. Le corpus est constitué des documents de constitution des Pay...

  4. Diversité et précarité : une nouvelle conception de l’activité humaine dans les agrovilles du Sud de l’Europe au xviiie siècle (Lorca, 1771)

    Chacon Jimenez, Francisco

    2014-01-01

    L’activité humaine a fait l’objet de différentes évaluations au fil des époques de l’histoire et a également été considérée de différentes manières de la part des autorités et institutions responsables de refléter ces activités d’un point de vue statistique et fiscal. En ce sens, les dénominations et les indications documentaires tirées de sources, généralement fiscales, font du système des relations professionnelles, humaines et sociales le centre de la problématique qu’implique et suppose l...

  5. Préparation et etude de la réactivité de quelques dérivés de naphtoquinones en vue de leurs applications biologiques potentielles.

    Benabdallah, Mohamed

    2014-01-01

    Les composés ayant un noyau gnomonique constituent une classe très importante dans la chimie organique et la biochimie, grâce à leurs activités biologiques et thérapeutiques élevées. Ce sont des molécules très répandues dans la nature. Elles se divisent en trois grandes familles, les anthraquinones, les anthraquinones et les benzoquinones.

  6. Influence du paludisme sur les concentrations sériques du fer et les activités de certaines enzymes (TGO, TGP, PAL, LDH dans la ville de Lubumbashi.

    Shibumbu Kabeya E

    2013-12-01

    Full Text Available L’objectif de notre étude est d’évaluer les modifications des concentrations plasmatiques du fer et des activités enzymatiques de la transaminase glutamo-oxaloacétique (TGO, de la transaminase glutamo-pyruvique (TGP, de la lactico-déshydrogénase (LDH et de la phosphatase alcaline (PAL chez les sujets paludéens de la ville de Lubumbashi. L’étude a concerné 60 sujets dont 30 sujets paludéens et 30 sujets non paludéens, âgés de 1 à 63 ans. Ces sujets fréquentaient les cliniques universitaires de Lubumbashi, et du sang veineux a été prélevé sur chacun d’eux. La concentration de fer sérique et les activités de PAL, LDH, TGO et TGP obtenues chez les personnes à goutte épaisse positive ont été significativement plus élevées que celles observées chez les personnes à goutte épaisse négative. Par ailleurs l’augmentation de la concentration du fer et des activités de PAL, LDH, TGP et TGO dans le sérum était positivement corrélée à l’intensité du parasitisme. Nous en avons conclu que le paludisme entraine une augmentation de la concentration du fer sérique et des activités de certaines enzymes (TGO, TGP, LDH et PAL.

  7. 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

    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

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

    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

  9. Évaluation de l’activité antidiabétique de l’extrait aqueux des feuilles de vitex madiensis en phytothérapie.

    Tshibumbu KE

    2014-09-01

    Full Text Available Notre étude a eu comme objectif d’évaluer l’activité hypoglycémiante de Vitex madiensis, une plante utilisée en phytothérapie antidiabétique, sur les animaux de laboratoire choisis comme matériel d’expérience. Les 4 groupes de cobayes nommés A, B, C et D en raison de 3 cobayes par groupe, ont chacun reçu d’abord une surcharge en glucose en concentration égale. En plus, les différents groupes ont reçu respectivement la solution du glibenclamide (A, l’extrait aqueux des feuilles de Vitex madiensis (B, la solution du résidu méthanolique (C et l’eau distillée (D. Avec le glibenclamide, on constate une diminution de la glycémie de plus de 25 % dès la 75e minute après une augmentation de 113,2% à la 30e minute tandis qu’avec l’extrait aqueux de feuilles de Vitex madiensis on a une diminution de la glycémie de 13 % dès la 75e minute après une augmentation de 130% à la 30e minute. Avec le résidu méthanolique et l’eau distillée il y a une diminution respective de la glycémie à la 120e minute et à la 210e minute après une augmentation importante à la 30e minute. Les résultats trouvés montrent que le traitement par l’extrait aqueux des feuilles de Vitex madiensis a donné des effets similaires à ceux obtenus avec le glibenclamide sur les cobayes surchargés en glucose, ceci nous a poussés à dire que l’extrait aqueux de cette plante est doué d’une activité hypoglycémiante remarquable. Our study had the objective to estimate the hypoglycemic activity of Vitex madiensis, a plant used in antidiabetic phytotherapy, on animals of laboratory chosen as material of experience. Four groups of guinea pigs named A, B, C and D in reason of 3 guinea pigs by group, receive at first an excess load in glucose concentration. Moreover, the various groups received respectively the solution of glibenclamide (A, the aqueous extract of the sheets of Vitex madiensis (B, the solution of methanol residue (C and

  10. Adoption du e-Business dans les activités internationales de la PME: implications des niveaux de e-Maturité et d'engagement à l'international

    Ghachem, Lassaad; Blili, Sam

    2008-01-01

    La divergence des chercheurs concernant l’usage inconditionnel de l’Internet dans les activités internationales de la PME, la pénurie de recherches sur les liens entre e-Business et engagement à l’international et le manque de clarté à propos de l’adoption du e-Business par les PME internationales, sollicite l’approfondissement d’études de certains liens notamment entre e-Business, PME et international. S’inscrivant dans la thématique générale de l’adoption des TIC par les PME, l’originalité ...

  11. RECHERCHE des activités antimicrobennes et antioy6antes de Scfiinus moOEe ( et (Pistacia vera C de &z région 6e Tkmcen.

    ABID, Lemya épouse MEFTAH

    2014-01-01

    le cadre de la valorisation du patrimoine floral, nous nous sommes intéressés à l'étude phytochimique et aux activités biologiques des deux classes de familles chimiques qui sont les huiles essentielles et les flavonoïdes des deux plantes Schinus molle et Pistacia vera. - Les résultats obtenus montrent que le rendement en huiles essentielles des feuilles de Schinus molle est de l'ordre de 1,11 % et dans les fruits il est de l'ordre de 0,11%. Les feuilles de Pistacia vera quant ...

  12. Physico-chimie de la phase aqueuse des nuages prélevée au sommet du puy de Dôme : caractérisation et réactivité photochimique

    Charbouillot, Tiffany

    2011-01-01

    Le milieu nuageux est un milieu complexe au sein duquel un grand nombre d’espèces chimiques peuvent être transformées. Dans ce cadre, la caractérisation chimique et la réactivité photochimique de la phase aqueuse des nuages ont été étudiées. La caractérisation chimique de la phase aqueuse des nuages a permis de montrer que les masses d’air échantillonnées au sommet du puy de Dôme sont majoritairement sous trois influences distinctes, à savoir océanique, continentale et anthropique. La distrib...

  13. Les parcs d’activités informatiques périphériques de Pune (Maharastra, Inde) : éléments de redistribution de la donne urbaine

    Leducq, Divya; Liefooghe, Christine

    2011-01-01

    Depuis une décennie, l’Inde fait figure de leader dans le monde informatique, et plus spécialement dans les domaines de la conception de logiciels et de la maintenance des systèmes d’ordinateurs. La croissance forte de ce secteur tient en partie à l’existence de parcs d’activités informatiques (STPI), initiative de l’État pour favoriser l’exportation et les investissements étrangers. Dans certaines villes, telle que Pune, la création de ce type de parc a entrainé d’autres initiatives, publiqu...

  14. Les PME en France en 2011 : malgré une activité bien orientée, la rentabilité stagne et les structures financières demeurent hétérogènes.

    CAYSSIALS, J-L.; Servant, F.

    2012-01-01

    Le redémarrage de l’activité des PME résidant en France se confirme en 2011, notamment grâce à un rebond des exportations, mais la fin d’année marque les prémices d’une inflexion. Le taux de marge augmente légèrement, tandis que le taux d’épargne se replie. L’investissement progresse, surtout pour les PME de l’industrie. Les capitaux propres continuent à se renforcer.

  15. Division de l'attention lors d'interventions d'urgence préhospitalière : quelques apports de l'analyse d'activité en situation réelle de travail

    Arial Marc; Benoît Damien; Danuser Brigitta

    2010-01-01

    Problème : Les ambulanciers effectuent souvent des tâches en contexte de division de l'attention. Cette caractéristique du travail peut contribuer à augmenter les risques d'erreurs ou ralentir le déroulement des interventions. Dans les situations d'urgences préhospitalières, cela peut avoir des conséquences dramatiques pour le patient et pour les intervenants. Méthode : Nous avons analysé l'activité réelle de travail d'ambulanciers en contexte d'intervention d'urgences. Notre démarche a impli...

  16. Studio fitochimico e attività biologica di piante spontanee della Sardegna

    Usai, Marianna; Foddai, Marzia; Juliano, Claudia Clelia Assunta; Marchetti, Mauro; Delogu, Giovanna; Azara, Emanuela; Sechi, Barbara

    2005-01-01

    Da decenni il nostro gruppo si interessa allo studio delle piante della Sardegna [...]. Le ricerche del nostro gruppo da sempre si sono incentrate sulla caratterizzazione fitochimica e attività biologica degli estratti delle piante che crescono in Sardegna prevalentemente allo stato spontaneo. Numerose sono le specie che sono state investigate e tra queste, nell'ultimo periodo sono state prese in considerazione: Thymus herba-barona Loisel, Thymus capitatus (L) Hoffmanns et Link, Salvia des...

  17. Performance Measurement of Research Activitities

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

    and to discuss how decision makers at all levels of the university hierarchy translate the registrations as a basis for the decision-making process. We ask the following questions: What are the registration practices among researchers and what are their incentives for registration/non-registration? What...... to the initial registration inscriptions and thus make decisions based on aggregated data that have been cut off from the original phenomena.......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...

  18. Activités culturelles

    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

  19. Caractéristiques d’activités d’évaluation de la compétence langagière à l’université

    Louise Bélair

    2011-06-01

    Full Text Available Il est généralement admis que la compétence langagière est un facteur de réussite des études supérieures. Or, plusieurs professeurs d’université soulèvent l’incompétence d’un nombre croissant de leurs étudiants en ce qui a trait à la maîtrise du français. Malheureusement, même si elle est reconnue comme cruciale à l’université et malgré les problèmes évidents des étudiants universitaires concernant la compétence langagière, cette dernière n’y est pas enseignée et même rarement évaluée dans le cadre des cours disciplinaires. C’est dans cette optique que nous nous sommes intéressées à la place accordée à la compétence langagière dans des programmes professionnels dans le secteur de l’éducation. Notre objectif de recherche est donc de caractériser les activités d’évaluation de la compétence langagière. L’utilisation d’analyses de construits a révélé des différences dans l’évaluation par rapport aux caractéristiques suivantes : 1 composantes linguistique et communicative ; 2 évaluations formatives et sommatives ; 3 productions orale et écrite ; et finalement 4 évaluation individuelle ou collaborative.It generally accepted that superior language skills are an important factor when it comes to succeeding in post-secondary education. Even though it is recognized that superior language skills are important for academic achievement and that most new students do not possess these skills, these are not being taught and are rarely evaluated in undergraduate courses. Most university professors are finding that an increasing number of students have inferior or low level language skills in French language. Our research examines the importance placed on language skills in teacher education programs with the objective of analyzing the characteristics of activities used to evaluate language skills in these programs. Our findings show that there are differences in the evaluation

  20. Rôle des activités lombriciennes sur la redistribution des éléments traces métalliques issus de boue de station d'épuration dans un sol agricole

    ABLAIN, Frédérique

    2002-01-01

    Ce travail de recherche traite de l'impact des activités lombriciennes sur (1) la qualité des eaux de percolation et notamment leur charge en éléments traces métalliques (Cu, Cd, Pb et Zn) et (2) de la redistribution de ces éléments au sein des microsites particuliers du sol (turricules et parois de galeries). Le rôle des lombriciens sur la dynamique des éléments traces métalliques est étudié au laboratoire sur deux espèces Lumbricus terrestris et Nicodrilus giardi en présence ou en l'absence...

  1. Typologie des jeunes à l’égard de la pratique d’activités physiques et stratégies communicationnelles appropriées pour la promouvoir

    Renaud, Lise; Caron-Bouchard, Monique; Thibault, Guy

    2015-01-01

    Cette recherche identifie les profils de jeunes de 15 à 17 ans qui ont une incidence sur la pratique d’activités physiques, et cerne les caractéristiques des stratégies communicationnelles pour la promotion d’un mode de vie actif. Une approche de marketing social différencié basée sur des segments (âge, sexe et style de vie) a été utilisée pour encadrer cette étude. Les propos recueillis lors de huit groupes de discussion avec des jeunes (n =68) provenant de régions urbaines, semi-urbaines et...

  2. Goût pour les jeux vidéo, goût pour le sport, deux activités liées chez les adolescents

    Peter, Christophe; Chantepie, Philippe

    2015-01-01

    Goût pour les jeux vidéo et goût pour le sport sont souvent opposés : en termes de types d’activités (les premiers d’intérieur, passifs, peu propices à la socialisation, le second de dépense physique, de plein air, bon pour la santé, etc.) ; en termes de genre : les garçons seraient les plus « touchés » par le monde virtuel ; enfin en termes de « politique », la consommation des jeux vidéo étant opposée aux « vraies » pratiques culturelles… Une analyse secondaire de l’enquête sur les loisirs ...

  3. Effet d'un régime enrichi en chlorpyrifos chez le rat Wistar: étude de l'activité enzymatique des cholinestérases comme indicateur biologique

    Benziane, Ahmed Djihad

    2015-01-01

    Les intoxications aigiies par les pesticides organophosphorés (OP) sont responsables d'une lourde mortalité mondiale, en particulier dans les pays en voie de développement à fort potentiel agricole. Ces produits OP sont responsables d'intoxications de gravité variable selon la nature du composé et des quantités ingérées. Le présent travail porte - sur l'étude de l'effet de la toxicité sur l'activité cholinestérasique et quelques paramètres de la fonction hépatique chez les rats...

  4. L'impact des activités non-agricoles sur la pauvreté et l'inégalité rurales, cas des groupements Bugorhe et Irhambi-Katana (Territoire de Kabare, Province du Sud-Kivu)

    Furaha Mirindi, Germaine; Mastaki, Leki; Lebailly, Philippe

    2013-01-01

    Dans un contexte d’abandon ou négligence du secteur agricole par le pouvoir public, cette étude cherche à analyser la contribution de l’activité non agricole sur la réduction de la pauvreté et des inégalités dans le territoire de kabare dans la province du Sud-kivu. La présente étude se focalise sur deux groupements du territoire de kabare de la province du Sud-Kivu à savoir Bugorhe et Irhambi-katana dont le centre de kavumu a été retenu dans l’échantillonnage pour le premier et le centre Kat...

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

    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...

  6. Intelligence économique des activités d'élevage pastoral en Méditerrannée : veille stratégique, prospective territoriale et dispositifs de gouvernance

    Dubeuf, Jean-Paul; Linck, Thierry

    2012-01-01

    L’élevage pastoral en Corse comme dans la plupart des régions du Bassin méditerranéen connait à la fois une déprise (diminution du nombre des exploitations, âge moyen avancé des éleveurs, diminution des reprises et installation des jeunes, etc.) et un regain d’intérêt. Ces produits sont biens valorisés et appréciés et l’activité est au cœur de nombreux enjeux environnementaux et de développement territorial. Il a cependant vécu des mutations importantes (développement de la complémentation, ...

  7. Intégrer des activités pastorales et fourragères aux espaces forestiers méditerranéens pour les rendre moins combustibles

    Etienne, Michel

    1996-01-01

    Les aménagements de défense de la forêt contre les incendies (DFCI) ont pris des formes nouvelles depuis que les aménagistes ou les gestionnaires ont décidé d'y associer des activités agricoles, en particulier l'élevage. Après un bref rappel de la nouvelle politique de prévention des incendies en forêt méditerranéenne, l'article explique les possibilités d'intégration de l'élevage à la création et à l'entretien d'aménagements DFCI. Les effets du contexte de la conception et de la logique du m...

  8. Analyse de l'activité et développement de l'auto-efficacité : Un levier pour la professionnalisation des étudiants en sciences infirmières au Liban

    Khawand Ayle, Ghada; Nagels, Marc

    2014-01-01

    Dans le cadre de la réingénierie de la formation infirmière dans une université au Liban, l’étude montre que l’analyse de l’activité est un facteur de développement de l’auto-efficacité pour la conception d’un projet de soins chez les étudiants. L'auto-efficacité d’un individu se présente essentiellement comme une évaluation personnelle de sa compétence pour agir dans une classe de situations donnée. Ce sentiment de compétence perçue par le professionnel ou l’étudiant est une variable détermi...

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

    Amira OUIBRAHIM; Yasmina TLILI-AIT KAKI; BENNADJA, Salima; Roukaya MANSOURI; Sabrina AIT KAKI; Samiha KHBIZI; Mohamed-Reda DJEBAR

    2015-01-01

    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...

  10. Lectures de l’enseignante, lectures des élèves : temps et lieux pour la lecture d’un album en CP – étude de cas en analyse de l’activité

    Fradet-Hannoyer, Marthe

    2015-01-01

    Cet article est consacré à une analyse de l’activité d’une professeure des écoles stagiaire lorsqu’elle enseigne la lecture et l’écriture à partir de textes littéraires dans sa classe de CP. Il s’inscrit dans le cadre théorique d’une « didactique intégrative » (Goigoux, 2012) selon laquelle le travail enseignant est soumis à des préoccupations complexes et dynamiques dont on peut tenter de comprendre la cohérence en mêlant analyse didactique et ergonomique. Ce travail est mené dans le cadre d...

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

    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.

  12. Vingt ans de recherches à Saint-Véran, Hautes Alpes: état des connaissances de l’activité de production de cuivre à l’âge du Bronze ancien

    Bourgarit, David

    2010-12-01

    Full Text Available Not available

    Durante la Edad del Bronce en Europa occidental, el aumento drástico de la producción de cobre apenas está documentado en las actividades mineras y metalúrgicas de transformación. En este contexto, el yacimiento minero y metalúrgico de Saint-Véran, Hautes-Alpes constituye un testimonio privilegiado de la producción en masa a fines del III milenio, ya que las obras mineras dan cuenta de una explotación a gran escala, con una producción de casi 7 t de cobre al año. Numerosos sitios de metalurgia extractiva puede haber estado asociados con ella. Desde hace 20 años, diversos equipos, como en el que participan los autores, han emprendido o emprenden investigaciones para intentar documentar el sitio y su actividad. El objetivo de este artículo es presentar el estado actual de la cuestión sobre el yacimiento. Los resultados principales son la puesta en evidencia de la actividad de producción en masa y su cuantificación. Además se ha descrito por primera vez la organización de la producción, poniendo en evidencia la sucesión de fases entre la actividad minera y metalúrgica, así como las técnicas metalúrgicas innovadoras puestas en práctica. El yacimiento revela un estallido muy marcado de la actividad metalúrgica en el espacio que no deja de plantear interrogantes. Igualmente, la cuestión del destino de la producción sigue abierta por completo. Por otro lado, los motores para una implantación semejante en un territorio de alta montaña han comenzado a identificarse. Así se invocan determinismos naturales ya se trate de la mineralización particular de un yacimiento como de la evolución del clima. [fr] A l’âge du Bronze ancien en Europe occidentale, l’augmentation drastique de la production de cuivre est très peu documentée au niveau des activités minières et métallurgiques de transformation. Dans ce contexte, le gisement minier et métallurgique de Saint-Véran, Hautes- Alpes constitue un

  13. Caractérisation et modélisation des déplacements du sol associés à l'activité volcanique du Piton de la Fournaise, île de La Réunion, à partir de données interférométriques.
    Août 2003 – Avril 2007

    Tinard, Pierre

    2007-01-01

    Le Piton de la Fournaise est l'un des volcans les plus actifs au monde. Depuis mi-2003, 14 éruptions sont survenues. Une surveillance en continu de cette période d'intense activité a été réalisée à partir de données ASAR-ENVISAT. Les interférogrammes calculés fournissent un enregistrement précis des déplacements de l'édifice. L'étude a permis de démontrer le fort potentiel de l'InSAR comme outil de surveillance opérationnelle de l'activité du Piton de la Fournaise. De plus, les données InSAR ...

  14. Quels sont les effets produits sur le développement professionnel par la conduite d'une activité nouvelle dans le cadre d'une situation ordinaire : le cas des enseignants qui accueillent en milieu scolaire ordinaire un enfant rencontrant des besoins particuliers.

    Lemeunier-Lespagnol, Michèle

    2012-01-01

    La scolarisation des élèves en situation de handicap engage les enseignants dans une activité nouvelle. Il s'agit de " la rencontre de rencontres " (au sens de Schwartz, 2004) avec l'enfant mais aussi du développement d'une activité en présence et en collaboration avec d'autres personnes. L'enseignant n'est plus seul dans la classe, il va travailler avec l'auxiliaire de vie scolaire (AVS), des enseignants spécialisés voire d'autres professionnels. Dans le cadre de notre thèse, nous nous intér...

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

    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

  16. Comparaison de l'évolution et du contrôle de l'activité des amylases et des protéases au cours du développement larvaire et des premiers stades juvéniles chez palaemon serratus, macrobrachium rosenbergii et penaeus japonicus (crustacea decapoda)

    van Wormhoudt, A.

    1981-01-01

    L'évolution de l'activité des amylases et des protéases a été suivie au cours du développement larvaire chez 3 espèces de crustacés décapodes Natantia. Chez Palaemon serratus, Macrobrachium rosenbergii et Penaeus japonicus, l'augmentation des amylases est plus forte que celle des protéases. Ces changements apparaissent surtout à la fin des stades nauplius et des stades mysis chez les Penaeus et au cours des stades mysis chez Palaemon et Macrobrachium. Ils sont liés à des modifications du régi...

  17. Étude de ['activité antioy6ante (test 'BTIY) des huiles essentiettes et 12z pédologie d'r/fa(oy(on Scoparium pome1(emtfi) 6e &i région 6e Yaâma

    BOUKHALFA, Miloud

    2014-01-01

    Le regain d'intérêt aux plantes médicinales pour extraire les principes actifs qui s'accroît d'un jour à l'autre, laisse les chercheurs des traitements naturels puiser dans les recueils traditionnels et essayer de leur donner leur vraie image, différente de celle de la sorcellerie, de l'alchimie et du charlatanisme. C'est ainsi qu'une étude de l'activité antioxydante d'huile essentielle, utilisées depuis des millénaires, d'un plant ahnentakre et médicinale: Remth et leurs huiles e...

  18. La Coltivazione del mirto come complemento alle raccolte da piante spontanee per la sostenibilità dell'utilizzo industriale

    MULAS, MAURIZIO

    2009-01-01

    The myrtle liqueur industry is developed in Sardinia by using the myrtle berries harvested from spontaneous plants as raw material. The market growth of this liqueur changed them from a home-made product to an industrial one, with increasing export to the national and international consumers. Myrtle liqueur is just an example of the typical regional sweet liqueurs of low alcohol content that recently are appreciated to a world level. Fruit harvests from spontaneous plants are w...

  19. Étude de la réactivité polyvalente des composés borés : de la fluoration électrophile à la synthèse d’amides par substitution nucléophile oxydante ; O-alkylation de dérivés phénoliques par substitution nucléophile : vers la mise au point d’un système éco-compatible

    Cazorla, Clément

    2011-01-01

    Ce travail a tout d’abord porté sur la réactivité des dérivés borés puis sur la réaction de O-alkylation des alcools aromatiques. L’utilisation des composés borés est en plein essor. Ils sont employés comme partenaires de couplage dans la réaction de Suzuki et les réactions d’additions [1,4] catalysées au rhodium pour la synthèse de molécules à hautes valeurs ajoutées. La polarisation de la liaison C-B induit le caractère nucléophile de ces composés. Cette réactivité a été exploitée pour la f...

  20. 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

    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

  1. Etude de l’activité pouzzolanique d’une roche andésitique en Algérie Study of the pozzolanic activity of an andesitic rock in Algeria

    Clastres P.

    2012-09-01

    Full Text Available Ce travail s’inscrit dans le cadre de l’accord programme Tassili N° 09 MDU 773 entre le Laboratoire de Physicochimie des Matériaux, USTO-Oran et le Laboratoire des Matériaux et Durabilité des Constructions (LMDC, INSA-UPS-Toulouse, France. La présente étude est une contribution aux travaux de la recherche de nouvelles sources d’approvisionnement en ajouts et en matières premières et la valorisation des matériaux naturels locaux utilisés dans la fabrication du ciment. Cette étude porte sur l’activité pouzzolanique des roches volcaniques, elle a pour but de comparer les caractéristiques physiques et mécaniques d’un mortier témoin à ciment de type CEMI 52,5R fourni par la firme Lafarge et d’un mortier à ciment du même type avec ajout dont les taux de substitution de la roche Andésitique est de 0- 40%. Dans notre travail, nous avons utilisé des roches volcaniques appartenant à la famille des Andésites, provenant de la région de Tipaza, Nord Ouest Algérois. L’étude des caractéristiques mécaniques et de l’indice de pouzzolanicité ont montré que les ciments fabriqués sont capables de remplacer certains ciments Portland pour une éventuelle utilisation dans le domaine de construction. This work is a part of the agreement programs Tassili N° 09 MDU 773 between Laboratory of Physic-chemistry Materials, USTO-Oran and Laboratory of Materials and Durability of Constructions (LMDC, INSA-UPS-Toulouse, France. The present study is an attempt to the research of new supply sources in admixtures and raw materials and the evaluation of local natural materials used in the manufacture of cement. It deals with the pozzolanic activity of the volcanic rocks and aims to compare the physical and mechanical characteristics of a mortar control made with cement CEMI 52,5R provided by Lafarge firm and of a mortar made with the same cement incorporated by different replacement rate of andesitic rock in a range of 0 – 40

  2. Progress report; Rapport d'activite

    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.)

  3. Progress report; Rapport d'activite

    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.

  4. Activités estivales et automnales

    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...

  5. 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

    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

  6. 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)

    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

  7. Détection des troubles psychiatriques de l'âge avancé à l'hôpital général: un exemple d'évaluation de l'activité de liaison psychogériatrique

    Hentsch, François; Giannakopoulos, Panteleimon; Hermann, François

    2004-01-01

    Ce travail concerne tous les patients adressés à la consultation de liaison psychogériatrique à l'Hôpital cantonal et universitaire de Genève pendant une période d'une année. L'étude regroupe 1106 patients et dresse un tableau détaillé de cette population et de l'activité de la consultation. La concordance entre le motif de la demande et le diagnostic final est très moyenne pour les troubles névrotiques, les troubles organiques et légèrement supérieure pour les troubles dépressifs. Les plus f...

  8. Détection des troubles psychiatriques de l'âge avancé à l'hôpital général : un exemple d'évaluation de l'activité de liaison psychogériatrique

    Hentsch, François

    2004-01-01

    Ce travail concerne tous les patients adressés à la consultation de liaison psychogériatrique à l'Hôpital cantonal et universitaire de Genève pendant une période d'une année. L'étude regroupe 1106 patients et dresse un tableau détaillé de cette population et de l'activité de la consultation. La concordance entre le motif de la demande et le diagnostic final est très moyenne pour les troubles névrotiques, les troubles organiques et légèrement supérieure pour les troubles dépressifs. Les plus f...

  9. Management des parties prenantes, pro-activité environnementale et rentabilité:le cas du secteur des produits de grande consommation en France - Stakeholder management, corporate environmental proactivity and profitability:A food, beverage, household and personal products industries study in France

    Franck Brulhart; Sandrine Gherra

    2013-01-01

    (VF)Notre article vise à améliorer la compréhension des liens entre la nature du management des parties prenantes, la pro-activité environnementale et la performance économique. En nous fondant sur la théorie des parties prenantes et la théorie des ressources, nous proposons un modèle « intégrateur » prenant en compte les interrelations entre ces différentes variables.Nos résultats montrent qu’un management différencié des parties prenantes (i.e. fondé sur une priorité accordée à un nombre li...

  10. L'activité physique adaptée pour les personnes atteintes de diabète de type 2 : approche sociologique des "carrières de pratiquant d'APA" dans leurs relations avec la "trajectoire de maladie"

    Barth, Nathalie

    2012-01-01

    Outre la prescription d’un traitement médicamenteux, la pratique régulière d’une Activité Physique Adaptée (APA)est recommandée aux personnes atteintes d’un diabète de type 2 (DT2), au même titre qu’un nouvel équilibre alimentaire(HAS, 2006). Cette incitation à opérer des changements concrets dans son « style de vie » rencontre des résistances, qui sontaccentuées pour les malades n’ayant pas préalablement construit de dispositions à la pratique physique. Des dispositifsinnovants ont été imagi...

  11. Etude de l’impact du décret interdisant de fumer dans les lieux affectés à un usage collectif sur l’activité professionnelle des personnels de direction et de vie scolaire de 17 lycées français

    PIZON, Frank; Jourdan, Didier

    2013-01-01

    L’objet de cette contribution est de rendre compte des effets d’une mesure de santé publique sur l’activité de professionnels du système éducatif français. Le décret n° 2006-1386 du 15 novembre 2006 fixant les « conditions d'application de l'interdiction de fumer dans les lieux affectés à un usage collectif » a en effet été mis en œuvre dans les établissements scolaires comme dans les autres espaces concernés à partir du 1er février 2007. La spécificité du système éducatif tient aux relations...

  12. Paramètres photosynthétiques affectant le transport d'électrons à travers le pool de plastoquinone : la densité des photosystèmes I, le contenu de chlorophylle et l'activité d'une plastoquinol-oxydase

    Ceppi, Margarita Georgina

    2009-01-01

    La présente thèse a pour buts de permettre une interprétation plus précise des cinétiques de fluorescence de la Chl a (OJIP). Elle comporte deux parties principales. La première investigue l'activité et la localisation d'une oxydase du plastoquinol, une PQH2-oxydase. Dans la seconde partie de cette thèse, une expérience est menée sur des plantes de Beta vulgaris soumises à des traitements déficients en soufre et/ou magnésium, affectant spécifiquement la quantité de photosystèmes I (PSI) ainsi...

  13. Sauvetage héliporté médicalisé en Suisse: une étude épidémiologique rétrospective de 15 ans d'activités de la Garde aérienne suisse REGA = [Helicopter Emergency Medical Service in Switzerland : a retrospective epidemiological 15 year analysis of Swiss Air Rescue REGA activities

    Lehmann, Michael; Malacrida, Roberto

    2008-01-01

    Le but de l'étude consiste à analyser les données épidémiologiques de 15 ans d'activité de sauvetage héliporté médicalisé en Suisse, assuré essentiellement par la Garde Aérienne Suisse (REGA). Au total, 64'245 missions effectuées dans la période allant du 1er janvier 1991 au 31 décembre 2005 ont été classées selon la situation géographique, l'accessibilité selon l'index topographique (area index), les types de pathologies et les diagnostics pré hospitaliers, la gravité de l'atteinte physique ...

  14. Étude phytochimique et activités biologiques de l'extrait brut et ses fractions de l'algue brune Sargassum muticum, récoltée sur la côte ouest algérienne (plage de Madrid

    meridjen, asma

    2015-01-01

    Asma Résumé Notre travail vise à évaluer les activités antioxydante et antimicrobienne de l'extrait brut et ses fractions de l'espèce algale Sargassum muticum de la famille des Sargassassées, récoltée de la plage de Madrid à l'ouest de la wilaya de Ain-Temouchent. Cette étude concerne l'extraction de l'extrait brut et les fractions éther de pétrole, acétate d'éthyle, dichiorométhane, n-butanol et aqueuse ainsi que la quantification des phénols totaux, des flavonoïdes et d...

  15. 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

    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.

  16. 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

    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

  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

    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. 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

    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.

  19. Spontaneous and complete regression of a thoracic disc herniation; Regression spontanee et complete en IRM d`une hernie discale dorsale

    Coevoet, V.; Benoudiba, F.; Doyon, D.; Lignieres, C.; Said, G. [Centre Hospitalier Universitaire de Bicetre, 94 - Le Kremlin-Bicetre (France)

    1997-09-01

    Spontaneous regression of disc herniation is well known but the mechanism is not clear. Some hypotheses have been made. We present here a large thoracic disc herniation diagnosed by MRI which completely regressed one year after a medical treatment with complete amendment of symptoms. (authors). 11 refs.

  20. 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

    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

  1. 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

    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

  2. La spectrométrie Raman de résonance résolue dans le temps : une puissante méthode d'investigation en temps réel de la réactivité photochimique Time Resolved Resonance Raman Spectrometry: a Powerful Method for the Real-Time Investigation of Photochemical Reactivity

    Buntinx G.

    2006-11-01

    Full Text Available La spectroscopie Raman de résonance résolue dans le temps est une technique récente particulièrement bien adaptée à la caractérisation des intermédiaires réactionnels mis en jeu dans les réactions photochimiques (états excités, radicaux, paires d'ions, . . . . Elle permet de visualiser finement les variations de géométrie et de distribution électronique des espèces transitoires tout au long du chemin réactionnel. Nous présentons dans cet article une compilation des résultats obtenus dans notre laboratoire sur des molécules aromatiques dérivées du biphényle. Ces résultats constituent une bonne illustration des potentialités de cette technique à apporter des informations sur la réactivité de cette famille de composés. Après une partie consacrée à la description du dispositif expérimental utilisé dans de telles expériences, nous abordons l'étude structurale par spectrométrie Raman de résonance résolue dans le temps des radicaux cations et des états triplets de dérivés du biphényle. La dernière partie de cet article est consacrée à l'étude de la réactivité photochimique de dérivés de la pyridine (4,4'-bipyridine, 2,2'-bipyridine, 4-phénylpyridine, 2--phénylpyridine dans les solvants organiques par spectrométrie Raman de résonance résolue dans le temps. Time resolved resonance Raman spectroscopy is a recent technique that is particularly well suited for characterizing reaction intermediates involved in photochemical reactions (excited states, radicals, ion pair, etc. . It can finely visualize variations in geometry and electron distribution of transient species along the entire reaction path. This article describes a compilation of the results obtained in our laboratory on aromatic molecules derived from biphenyl. These results are a good illustration of the potentialities of this technique for providing information on the reactivity of this family of compounds. After a section devoted to

  3. 重大活动餐饮保障从业人员手卫生管理及手消毒效果研究%Study on hand sanitary control and hand disinfection effect of employees in large so-cial activites

    安代志; 孙如宝; 李宇杰; 贾瑞忠; 王莉莉; 刘雪林; 王强

    2015-01-01

    Objective To study the hand sanitary control and hand disinfection effect of health security employees during large social activites. Methods ATP fluorescence detector was used to evaluate the effect of hand disinfection of employees served in a major conference. Results The hand hygiene pass rate after washing hands with soap and detergent was 100%. But using scented soap or hand sanitizer,even soaking in chlorine disinfectant for 1 minute cannot reach the required pass rate. The results of 2 different ATP fluorescence detectors on the same staff were significantly different. Conclusion Hand washing with soap can reach required standard of hand hygiene. ATP fluorescence detectors from different manufacturers may come out with different results.%目的:研究重大活动卫生保障期间工作人员手卫生管理及手消毒效果。方法采用ATP生物荧光法,对某重大活动卫生保障工作人员手卫生消毒效果进行监测。结果餐饮从业人员用洗衣粉和肥皂洗手后,手卫生质量合格率为100%;用香皂和洗手液洗手后,则手卫生合格率不达标,即使再用含氯消毒液浸泡1 min仍然不达标。两种荧光生物检测仪对同一组人员手卫生检测结果存在明显差别。结论餐饮从业人员用肥皂洗手即可取得良好的洗手效果,但不同厂家生物荧光检测仪检测结果存在差别。

  4. 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

    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

  5. ATRAGEREA MINORILOR LA ACTIVITATE CRIMINALĂ SAU DETERMINAREA LOR LA SĂVÂRŞIREA UNOR FAPTE IMORALE (art.208 CP RM vs PRINCIPIUL NEADMITERII TRAGERII LA RĂSPUNDERE PENALĂ DE DOUĂ ORI PENTRU UNA ŞI ACEEAŞI FAPTĂ

    Stanislav COPEŢCHI

    2016-03-01

    Full Text Available În cadrul studiului întreprins este supusă investigaţiei problema privind stabilirea coraportului între principiul nead­mi­terii tragerii la răspundere penală de două sau mai multe ori pentru una şi aceeaşi faptă şi infracţiunea de atragere a minorilor la activitate criminală sau de determinare a lor la săvârşirea unor fapte imorale. Se ajunge la concluzia că nu se încalcă principiul dreptului penal stipulat la alin.(2 art.7 CP RM atunci când făptuitorul este tras la răspundere penală pentru fapta prevăzută la art.208 CP RM, precum şi pentru instigare la infracţiunea concretă comisă de minor, în ipoteza în care persoana adultă instigă la săvârşirea infracţiunii un minor care este pasibil de a fi supus răspunderii penale şi care de sine stătător comite infracţiunea. ATTRACT MINORS IN CRIMINAL ACTIVITY OR THEIR DETERMINATION TO COMMIT IMMORAL ACTS (art.208 PC RM vs. PRINCIPLE OF AVOINDING CRIMINAL RESPONSABILITY TWICE FOR THE SAME FACTWithin the undertaken study it is being investigated the problem on establishing the correlation between the principle of avoiding criminal responsibility for two or more times for the same act and offence of attract minors in criminal activity or their determination to commit immoral acts. It is concluded that is not violated principle of criminal law stipulated in par.(2 Article 7 PC RM when the offender is held to criminal responsibility for the act stipulated in Article 208 PC RM and for instigation to the concrete offense, committed by minor, in the event that adult person instigate to commit an offence a minor, who is liable to be subjected to criminal liability and that alone commit the offence. 

  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

    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. Calendrier des activités (juillet 2007 - juin 2008

    2007-04-01

    Full Text Available A20072-20 juilletAuxerre, Stage : l’archéologie du bâti religieux, la cathédrale Saint-Étienne.27-29 septembreAuxerre, La cathédrale Saint-Étienne d’Auxerre : résultats récents des recherches pluridisciplinaires et internationales, Christian Sapin4-6 octobreBesançon, "Nouveaux servages" et société en Europe, XIIIe-XIXe siècles, Nicolas Carrier16-17 novembreAuxerre, « Les usages sociaux de la Bible », numéro de la revue Médiévales, Dominique Iogna-Prat200825 janvierDijon, Chartae Burgundiae Me...

  8. Rapport d'activités Sextant 2013

    Satra Le Bris, Catherine; Meillon, Julien; Quimbert, Erwann

    2014-01-01

    Sextant est l'infrastructure de données géographiques marines et littorales de l'Ifremer, dont l’objectif est de gérer, diffuser et partager un catalogue de données relevant du milieu marin. Les données géographiques présentes sur Sextant sont issues des travaux de recherche et des programmes scientifiques des laboratoires de l'Ifremer et de ses partenaires. Répondant aux normes de l'ISO et aux standards de l'OGC, Sextant est un système interopérable avec les portails de diffusion de données ...

  9. Rapport d'activités Sextant 2014

    Satra Le Bris, Catherine; Meillon, Julien; Quimbert, Erwann

    2015-01-01

    Sextant est l'infrastructure de données géographiques marines et littorales de l'Ifremer, dont l’objectif est de gérer, diffuser et partager un catalogue de données relevant du milieu marin. Les données géographiques présentes sur Sextant sont issues des travaux de recherche et des programmes scientifiques des laboratoires de l'Ifremer et de ses partenaires. Répondant aux normes de l'ISO et aux standards de l'OGC, Sextant est un système interopérable avec les portails de diffusion de données ...

  10. Rapport d'activités Sextant 2015

    Satra Le Bris, Catherine; Meillon, Julien; Quimbert, Erwann; Treguer, Mickael

    2016-01-01

    Sextant est l'infrastructure de données géographiques marines et littorales de l'Ifremer, dont l’objectif est de gérer, diffuser et partager un catalogue de données relevant du milieu marin. Les données géographiques présentes sur Sextant sont issues des travaux de recherche et des programmes scientifiques des laboratoires de l'Ifremer et de ses partenaires. Répondant aux normes de l'ISO et aux standards de l'OGC, Sextant est un système interopérable avec les portails de diffusion de données ...

  11. 1996 Activity report; Rapport d`activite 1996

    NONE

    1996-12-31

    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

  12. Progress Report 1994; Rapport d`activite 1994

    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.

  13. Report of Activity - 1997; Rapport d`Activite - 1997

    Hammer, Philippe [Direction chargee de la Gestion des Dechets, CEA, 92 - Fontenay-aux-Roses (France)

    1999-11-01

    The Report of Activity on 1997 published by Waste Management Division (Direction chargee de la Gestion des Dechets) of French Atomic Energy Authority (Commissariat a l`Energie Atomique) presents the current activity in the framework of CEA Recovery Plan for Civil Centers initiated in 1991, aiming at managing all the radioactive problems issued from its Research and Development Activities. This plan covers three principal directions: management of radioactive wastes resulting from CEA research activities, reprocessing or storing the spent or un-used fuel resulting from research or prototype reactors, recovery measures and dismantling of nuclear facilities. In the field of radioactive waste management important projects, assuring the waste processing equipment, were developed in 1997 at Saclay (STELLA Installation), Cadarache (AGATE Installation) and Marcoule (ATENA Installation). The Radioactive Waste Storage TFA was put into operation at Cadarache. In the field of out-of-use fuel, in 1997 the fuel reprocessing units CARAMEL and UNGG were finished while as temporary storage for fuels waiting to be processed the CASCAD facility at Cadarache was assigned. Finally, concerning the recovery/dismantling activities, priority was granted to recover: the Radiochemical Lab. at Fontenay, the pilot workshop and UP1 plant of COGEMA at Marcoule, the EL4 reactor (in a joint action with EDF), and the AT1 pilot workshop at Cherbourg. The report is structured on five chapters with the following content: 1. The radioactive wastes; 2. The out-of-use fuels; 3. The dismantling of the definitively stopped installations; 4. The waste management at DAM (Direction des Applications Militaires); 5. Recovery activities at Marcoule 34 figs., 24 tabs.

  14. Activity report 2002; Rapport d'activite 2002

    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.)

  15. Progress report 1997; Rapport d`activite 1997

    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.)

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

    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.)

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

    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.

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

    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.)

  19. Activity report 2004; Rapport d'activite 2004

    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.)

  20. Main Activites of the Institute of Scientific Instruments

    Müllerová, Ilona; Radlička, Tomáš; Mika, Filip; Krzyžánek, Vladislav; Neděla, Vilém; Sobota, Jaroslav; Zobač, Martin; Kolařík, Vladimír; Starčuk jr., Zenon; Srnka, Aleš; Jurák, Pavel; Zemánek, Pavel; Číp, Ondřej; Lazar, Josef; Mrňa, Libor

    Brno: Institute of Scientific Instruments AS CR, v. v. i, 2014, s. 7-8. ISBN 978-80-87441-12-1. [Workshop of Interesting Topics of SEM and ESEM. Mikulov (CZ), 26.08.2014-31.08.2014] R&D Projects: GA MŠk EE.2.3.20.0103 Institutional support: RVO:68081731 Keywords : Institute of Scientific Instruments * electron microscopes * nuclear magnetic resonance equipment * coherent optics and related techniques Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering

  1. Activity report 1999; Rapport d'activites 1999

    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.)

  2. CEREM activity report; Rapport d`activite CEREM

    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.)

  3. Progress report 1998; Rapport d'activites 1998

    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.)

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

    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.

  5. Annual report 2007; Rapport d'activite 2007

    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.)

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

    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 third quarter of 1996. The paper reports on some important facts (earthquakes) and administrative instructions (draining preparation, flooding instructions, alarm systems, granting renewing). (J.S.)

  7. Activity report 1998; Rapport d'activite 1998

    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.)

  8. USEPA ORD TECHNOLOGY TRANSFER ACTIVITES ON MERCURY RESEARCH

    Key scientific questions have compelled ORD, in support of the Agency's mission, to develop a Mercury Research Strategy (1999). This strategy was to enable ORD to take a more proactive stance in identifying and implementing research programs designed to meet out-year goals in pro...

  9. Activity report 2000; Rapport d'activite 2000

    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. Annual report; Rapport d'activite 2004 - 2007

    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.)

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

    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.)

  12. 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

    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

  13. 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)

    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)

  14. L’examen méthodique d’un geste de métier pour une prévention durable des TMS : une intervention en clinique de l’activité Methodological examination of job-related body movements for the sustainable prevention of msds: a clinical intervention on the activity El examen metódico de un gesto de oficio por une prevención durable des LMS : une interpretación en clínica de la actividad

    Pascal Simonet

    2009-11-01

    Full Text Available L’intervention sur laquelle s’appuie cet article a été initiée par un service de médecine préventive qui souhaite étendre ses actions de prévention durable des TMS. Elle a été conduite selon les principes méthodologiques de la clinique de l’activité dans la perspective d’ouvrir les corps porteurs de douleurs déclarées sur un autre destin que celui de la réalisation de la pathologie. Les observations prolongées et répétées des activités concrètes de travail transforment les sujets observés en observateurs de leur activité. Le cadre des autoconfrontations simples et croisées a pour fonction de soutenir les efforts d’élaboration des professionnels à partir de dialogues entre eux. Les controverses professionnelles qui trouvent parfois à s’y réaliser enrichissent les connaissances et l’expertise de chacun dans le métier. Cet article souhaite interroger les ressorts méthodologiques de la prévention des TMS en posant, notamment, la question du protagoniste de la prévention ou encore celle, associée, de la place du collectif de métier comme ressource potentiellement durable d’une démarche préventive. Dans une telle perspective, les efforts de l’intervenant portent sur les méthodes à engager pour conduire les professionnels à se confronter, dans des cadres appropriés, à d’autres réalisations gestuelles au sein d’un collectif envisagé comme instrument psychologique de développement de leur activité.1The intervention on which this article is based was initiated by a preventive medical department wanting to extend its actions on the sustainable prevention of MSDs. The intervention was based on the activity clinic’s methodological principles from the perspective of people with reported pain having a fate other than that of pathology. Prolonged and repeated observations of the actual work activities change the observed subjects into observers of their activity. The purpose of the context of

  15. 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

    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)

  16. Spontaneous radiopathological evolution and after medical treatment in two models of localized irradiation. Evolution radiopathologique spontanee et apres traitement medical dans deux modeles d'accident d'irradiation localisee

    Lefaix, J.L.; Daburon, F.; Tricaud, Y. (CEA Centre d' Etudes de Fontenay-aux-Roses, 92 (France). Dept. de Pathologie Experimentale)

    1992-09-01

    Pathophysiological evolution of a [sup 192]Ir [gamma]-rays radio-induced muscular lesion was studied in experimental models developed in pigs and rabbits to simulate accidents which occurred among humans. Cutaneous and muscular radionecrosts started from early epithelial, microvascular and vascular lesions and late muscular and connective tissue lesions. Our therapeutic studies in pigs showed the interest of an early surgical treatment a minima. In rabbits, the association of non-steroidal anti-inflammatory (flurbiprofene) and haemorrheological agent (trimetazidine) among 10 other medical treatments, given for 8 weeks after an irradiation of a 80 Gy dose at the skin surface, involved a dose reduction factor of 2, with regards to the evolution of the skin injuries and the deep muscular fibronecrotic process. Tabs.

  17. 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

    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

  18. 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

    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

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

    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.

  20. Ordinateur port\\'e support de r\\'ealit\\'e augment\\'ee pour des activit\\'es de maintenance et de d\\'epannage

    Champalle, Olivier; Chalon, René; Masserey, Guillaume

    2008-01-01

    In this paper we present a case study of use of wearable computer within the framework of activities of maintenance and repairing. Besides the study of configuration of this wearable computer and its peripherals, we show the integration of context, in-situ storage, traceability and regulation in these activities. This case study is in the scope of a huge project called HMTD (Help Me To Do) which aim is to apply MOCOCO (Mobility, COoperation, COntextualisation) and IMERA (Mobile Interaction in the Augmented Real Environment) principles for better use, maintenance and repairing of equipments in the domestic, public and professional situations.

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

    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

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

    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.).

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

    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)

  4. Les compétences dans l’activité et leur analyse

    Jacques Leplat

    2008-01-01

    Skills won an important place in work situations analysis. They can be observed in different situations which must be acknowledged in order to avoid misunderstandings when they are used. They are looked from an ergonomic psychology perspective. After observing some facts related to skills evolution in work psychology and ergonomics, we examin their relationship with the activity with the task, the technique and the action, highlighting the interest for taking into account their development. S...

  5. Les compétences dans l’activité et leur analyse

    Jacques Leplat

    2008-01-01

    Full Text Available Skills won an important place in work situations analysis. They can be observed in different situations which must be acknowledged in order to avoid misunderstandings when they are used. They are looked from an ergonomic psychology perspective. After observing some facts related to skills evolution in work psychology and ergonomics, we examin their relationship with the activity with the task, the technique and the action, highlighting the interest for taking into account their development. Some research trends are necessary in the analysis and common skills. The conclusion highlights the importance of correlating the skills analysis with the activity and tasks analysis.

  6. L'activite de deplacement et le reperage de la nourriture chez le bar juvenile captif

    Anthouard, M; Paris, J

    1983-01-01

    Movement activity and localization of food were studied dynamically with the objective of establishing the capacities of behavioral adaptation of the young Dicentrarchus labrax faced with a novel situation. The role played by previous rearing conditions was demonstrated, the level of stimulation being a sensitive intervening factor (currents associated with the food). The data show the favourable effects of such treatment, and are in agreement with work carried out on higher vertebrates, whic...

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

    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

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

    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...

  9. Agrice 2002. Activity report; Agrice 2002. Rapport d'activite

    NONE

    2002-07-01

    Renewable raw materials derived from agricultural crops are used to manufacture bio-products in energy, chemicals and materials industries. Renewable feedstocks address a double need. On the one hand, they offer alternatives to fossil resources, and on the other hand, they are a response to today's environmental challenges: mitigation of the greenhouse affect, reduction of air, soil and water pollution, innocuousness and biodegradability of products. A new chemistry must be created. Large-scale and ongoing research work must be committed to this goal. The research effort implies active coordination of all the various actors involved - multidisciplinary research teams, agro-industrial enterprises, user industries (petrochemicals, chemicals, materials), and specific agricultural branches. With these ends in mind the scientific interest group AGRICE - Agriculture for Chemicals and Energy - was established by public authorities and eight partners in France in 1994. The AGRICE consortium was renewed for six years in 2001, with a broader membership base. AGRICE now includes the following partners: - the research arms of the Commissariat a l'Energie Atomique (CEA), the Institut Francais du Petrole (IFP), and the Institut National de Recherche Agronomique (INRA), - professional organisations representing producers of oilseeds (ONIDOL), grains (AGPB) and beets (CGB), - corporate members ATOFINA, AUTOBAR PACKAGING France, BAYER CROP SCIENCE, CERESTAR France, LIMAGRAIN Agro-Industrie, RHODIA, TOTAL FINA ELF, - the French ministries of Agriculture, Industry, Research, and the Environment, - the French Agency for the Environment and Energy Management (ADEME), - the French Agency for Innovation (ANVAR). ADEME is responsible for managing AGRICE. The consortium is involved in major international undertakings, notably through the European Renewable Resources and Materials Association (ERRMA). This report presents: 1 - the AGRICE profile, scope of activity, structure and Operations, and sectors of activity (Liquid biofuels for vehicles (Ester/Oils, Ethanol/Ether) and Non-vehicle biofuels (Energy crops, Processes), Biomolecules (Lubricants, Surfactants, Solvents, Other biomolecules), Biomaterials (Biopolymers, Agro-materials)); 2 - the 2002 year: Financial report and applications; Noteworthy achievements; Events in 2002; Europe-Wide activities; Joint undertakings; 3 - appendixes: Financial report 1994-2002, Breakdown of AGRICE grants by sector (1994-2002), Projects initiated and completed in 2002, Partners and members of the Group Council, The ADEME/AGRICE team

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

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

    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)

  12. Electrochemically Activited Water: Biophysical and Biological Effects of Anolyte and Catholyte Types of Water

    Georgi Gluhchev; Ignat Ignatov; Stoil Karadzhov; Georgi Miloshev; Nikolay Ivanov; Oleg Mosin

    2015-01-01

    This article outlines the results on the antimicrobial action of electrochemically activated water solutions (anolyte/catholyte), produced in the anode and cathode chamber of the electrolitic cell. Under laboratory conditions the cell culture and suspensions of classical swine fever (CSF) virus were treated with the anolyte. After inoculating them with cell cultures, the viral presence (the presence of viral antigen) was measured using the immunoperoxidase technique. It was found that anolyte...

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

    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.)

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

    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.)

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

    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

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

    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.)

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

    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.)

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

    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.)

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

    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.

  20. New Cyclolignan Esters and Their Antidiabetic Activitity from the Root of Rhus semialata

    OUYANG,Ming-An; WEIN,Yung-Shung; SU,Ren-Kuan; KUO,Yueh-Hsiung

    2004-01-01

    @@ Rhus semialata is one of five Rhus species (Anacardiaceae), distributed in the island of Taiwan. In the early days,the pericarp of R. semialata was commonly used as a substitute of salt by indigenous mountain people. The root of it is also a folk herb for treating diarrhea, spermatorrhea and malaria.[1,2] This paper describes the isolation and structural elucidation of new cyclolignan esters 3 and 4, and two known compounds: cyclolariciresinol (1) and lynoiresinol (2) isolated from the n-butanol extract of R. semialata.

  1. Activité féminine et structures familiales. Quelle dépendance ?

    Jacques Véron

    1988-01-01

    Véron Jacques.? Women's Employment and Family Structure. What are the Relationships ? Studies of women's labour force participation rates by family status and of the lower fertility of employed women, as well as a recognition that the sharply rising number of employed women has been accompanied by changes in family structure, suggest that there is a casual relationship between women's labour market behaviour and their attitudes to marriage and the family. However, this conclusion can be shown...

  2. Calendrier des activités (de juillet 2008 à juin 2009

    2009-09-01

    Full Text Available Année 200830 juin-4 juilletTours - Proportions. Arts, architecture, musique, mathématiques et sciences, Vasco Zara4-5 septembreTonnerre - Espaces, objets et populations dans les établissements hospitaliers du Moyen Âge au XXe siècle, Sylvie Le Clech25-26 septembreAuxerre - L'Arc triomphal dans l'espace ecclésial. De l'Antiquité au Moyen Age central en Occident,  Caroline Roux3-4 octobreAuxerre - Exégèse et prédication (IXe-XIIe siècle, Sumi Shimahara et João Gomes6-10 octobreAuxerre - Worksh...

  3. 1996 GRAMME activity report; Compte-rendu annuel des activites du GRAMME 1996

    NONE

    1997-12-31

    This note draws a balance of the activities made at CEA-DEM within the frame of GRAMME collaboration. Results in six interest fields are presented: solidification, Mephisto program, transport phenomena, isothermal diffusion, rhenium alloys and instrumentation. (A.C.)

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

    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.)

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

    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.)

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

    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.

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

    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.)

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

    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

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

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

    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

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

    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

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

    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.)

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

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

    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.)

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

    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.).

  16. Activité volcanique dans le golfe de Cadiz : disponibilité bibliographique

    Wulff-Barreiro, Enrique

    2007-01-01

    International audience An ocean basin hydrocarbon province is emplaced along the Iberian-Moroccan wedge, in the Gulf of Cadiz. Giant seismically-chaotic bodies with thicknesses exceeding 4 km covers an area as great as 90.000 km2 with potential hydrocarbon reserves revealing the Gulf of Mexico, suitable for petroleum storage. In cooperation with Moroccan institutions the Naval Research Laboratory of the United States carried out in 1999 a series of prospecting with the objective of mapping...

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

    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.).

  18. Scénariser l’apprentissage, une activité de modélisation

    Jean-Philippe Pernin; Hélène Godinet; Richard Hotte

    2007-01-01

    [Français] Un regard sur la scénarisation pédagogique: Depuis le début des années 2000, un ensemble de travaux de recherche et d’initiatives de terrain visent à proposer ou à utiliser des modèles, des méthodes et des outils pour concevoir, mettre en place, exploiter et analyser les scénarios d’apprentissage. Sur le plan international, on peut citer en particulier les travaux menés par Koper et Tattersall, (2005) portant sur les langages de modélisation pédagogique et plus spécifiquement autou...

  19. Scénariser l’apprentissage, une activité de modélisation

    Jean-Philippe Pernin

    2007-01-01

    Full Text Available [Français] Un regard sur la scénarisation pédagogique: Depuis le début des années 2000, un ensemble de travaux de recherche et d’initiatives de terrain visent à proposer ou à utiliser des modèles, des méthodes et des outils pour concevoir, mettre en place, exploiter et analyser les scénarios d’apprentissage. Sur le plan international, on peut citer en particulier les travaux menés par Koper et Tattersall, (2005 portant sur les langages de modélisation pédagogique et plus spécifiquement autour de la proposition IMS (Instructional Management System Learning Design ainsi que ceux de Paquette (2006 conduisant à développer une approche en ingénierie éducative supportant le développement d’environnements d’apprentissage en ligne. Ces travaux ont contribué à faire émerger, au sein des communautés éducatives, le concept de scénario pédagogique comme un composant essentiel des systèmes d’apprentissage en ligne. Le but poursuivi par ces chercheurs et leurs équipes est « d’explorer comment améliorer la qualité pédagogique des cours en ligne, dans une voie interopérable, avec les outils d’usage facile ».

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

    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

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

    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...

  2. Harness Reduction Efforts, Transducer Bus and TM/TC Architecture Optimization Activites at ESA

    Furano, G.

    2009-05-01

    It is now widely recognised that, the absolute performance of avionic systems is dependent on an ability to transmit yet more data and in a more efficient way between systems. New applications need ‘state-of-the-art' performance, not only for what concerns raw throughput levels, but mainly for easiness of integration, management and flexibility of operations. The ever increasing requirement to have network enabled capabilities put emphasis on compatibility too. To tackle the problem, ESA is trying to foster the adoption of all-digital networks with different capabilities targeted to command and control (like MIL-STD-1553 and CAN), high speed data transfer (Spacewire and its extensions), and, to replace the many point to point analog transducers, on board transducer networks. The concept of sensor network is a good candidate to transform discrete interfaces into bus ones, providing that a proof of concept and an in depth analysis of the consequences at system level due to the introduction of such technology in a spacecraft is done. Key words: Transducer and Sensor Bus, Digital Busses, Satellite Systems, TM/TC Architecture

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

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

    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.)

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

    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.)

  6. Activités chinoises dans le secteur minier en RDC

    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-led......-led investment; and 3) trade. The poster is based on findings from the author's field research in the DRC (Kinshasa and Lubumbashi) in 2008 and 2009....

  7. Dynamiques du territoire : la population et les activités économiques

    Ajara, C.; Bahiana, L. Cavalcanti; O'Neill, M.M.; Théry, H. (coord.); Philippe WANIEZ

    1993-01-01

    Plus que la "frontière" pionnière de l'intérieur du pays, c'est la région du Centre-Sud, et notamment ses grandes villes, qui attire le plus grand nombre de migrants brésiliens, comme l'atteste l'analyse des recensements de 1985 et 1991. Le Centre-Sud, en effet, est la région la plus urbanisée, la plus industrialisée du pays; elle est en situation dominante dans les secteurs tertiaires, de l'agriculture et de l'élevage, et constitue ainsi le véritable moteur de l'organisation territoriale bré...

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

    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)

  9. Correlation of anthropometric variables, conditional and exercise habits in activite olders

    Moreno Bolívar, Hilario; Ramos Bermúdez, Santiago; Parra Sánchez, José H

    2012-01-01

    Objective: This study sought to correlate the anthropometric and functional variables, and exercise habits in a group of el­derly adults who regularly attend exercise programs. Method: participation of 217 subjects between 60 and 85 years of age, from 13 regions of Colombia. Anthropometric and functional assessment was conducted as a questionnaire on exercise habits. Results: negative correlations were shown between exercise habits and body fat and positive correlations between hand strength ...

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

    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.

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

    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 ...

  12. Les activités scientifiques à l’école maternelle

    Bajolet, Virginie

    2008-01-01

    Dans le cadre de ma formation de professeur des écoles stagiaire à l’IUFM de Bar Le Duc en 2004-2005, j’ai eu l’occasion de rédiger un mémoire professionnel. L’idée de sujet de celui-ci m’est venue à la suite des différents stages que j’ai eu l’occasion d’effectuer en maternelle lors de mon cursus. En effet, à travers cette expérience, qui m’a permis de rencontrer des élèves avec un niveau de langage différent, j’ai souhaité m’interroger sur l’aide que l’on pouvait apporter aux jeunes enfants...

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

    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.

  14. Filtres à activité catalytique pour moteur Diesel Catalytic Activity Filters for Diesel Engines

    Goldenberg E.

    2006-11-01

    Full Text Available A partir de l'examen des normes actuelles et envisagées dans le futur pour limiter les émissions de particules Diesel, et en considérant les propriétés physico-chimiques de ces particules, cet article expose les problèmes posés par la filtration des suies Diesel et leur élimination par combustion sur les différents types de filtres actuellement retenus. La régénération des filtres par combustion catalytique du dépôt est plus particulièrement discutée. From an examination of present regulations and ones being considered for the future to limit particle emissions by diesel engines, and considering the physicochemical properties of such particles, this article describes the problems raised by filtering soot from diesel engines and eliminating it by various types of filters now used. Filter regeneration by catalytic combustion of the deposit is considered in particular.

  15. Activity report SPP 1997-1998; Rapport d'activite SPP 1997-1998

    NONE

    1999-05-01

    In this paper are found technical and scientific papers on the main works of the Department of Astrophysics, Particles physic, Nuclear physic and Associated Instrumentation (DAPNIA) of the CEA. The presented fields are: the research programs; positron and electron collisions; proton-proton and proton-antiproton collisions; electron-proton collisions; CP invariance; neutrino and black matter. (A.L.B.)

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

    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

  17. AGRICULTURE EN ROUMANIE: DEFINIR L'ACTIVITE POUR UN CIBLAGE DE LA POLITIQUE DES STRUCTURES

    Marie-Luce Ghib

    2010-09-01

    Full Text Available Like the former member States of the EU in 1962 at the beginning of the CAP, today Romania focuses mainly on the restructuring and the modernisation of its agriculture. In a general context in which OECD advocates the targeting of farm holdings to achieve a better efficiency of agricultural policies, we analyse in this paper the difficulties for a definition for targeting the units in the Romanian context. The article draws parallels between different types of production structures in Romania, as they can be defined with the current statistical apparatus, and the objectives aimed by the principal measures of the rural development policy. It concludes with an analysis of the adequacy of the system chosen in Romania to accompany the modernisation, the restructuring and the reorientation of farm holdings.

  18. Body Mass Index and Body Fat Status of Men Involved in Sports, Exercise, and Sedentary Activites

    Wan Nudri, Wan Daud; Wan Abdul Manan, Wan Muda; Mohamed Rusli, Abdullah

    2009-01-01

    A cross-sectional study was carried out in Kota Bharu on three groups of men with ages ranging from 18 to 44 years. The study groups included 83 athletes representing various types of sports and levels of participation (athlete group), 80 active men who exercised a minimum of 30 minutes per day at least 3 times per week (exercise group), and 80 inactive men (sedentary group). The objectives of the study were to compare the body mass indices (BMIs) and body fat statuses among the three groups ...

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

    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.

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

    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.)

  1. Commerce électronique et localisation urbaine des activités commerciales

    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...

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

    NONE

    1997-12-31

    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.)

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

    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.

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

    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.

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

    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.)

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

    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 H2 in gas product at low OER. However, high OER (greater than 0.3) not only led to the combustion reaction of CO and H2, 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.

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

    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.)

  8. Electrochemically Activited Water: Biophysical and Biological Effects of Anolyte and Catholyte Types of Water

    Georgi Gluhchev

    2015-03-01

    Full Text Available This article outlines the results on the antimicrobial action of electrochemically activated water solutions (anolyte/catholyte, produced in the anode and cathode chamber of the electrolitic cell. Under laboratory conditions the cell culture and suspensions of classical swine fever (CSF virus were treated with the anolyte. After inoculating them with cell cultures, the viral presence (the presence of viral antigen was measured using the immunoperoxidase technique. It was found that anolyte did not affect the growth of the cell culture PK-15; viral growth during the infection of a cell monolayer with a cell culture virus was affected in the greatest degree by the anolyte in 1:1 dilution and less in other dilutions; whereas the viral growth at the infection of a cell suspension with the CSF virus was affected by the anolyte in dilution 1:1 in the greatest degree, and less by other dilutions; viral growth at the infection with a virus in suspension of the cell monolayer was affected by the anolyte in all dilutions. Unexpectedly, the stronger biocidal effect of the catholyte was observed when a strain of E. coli DH5 was treated by the anolyte and catholyte, respectively. In order to provide additional data about the antiviral activity of the electrochemically activated water and the distribution of H2O molecules according to the energies of hydrogen bonds, the non-equilibrium energy spectrum (NES and differential non-equilibrium energy spectrum (DNES of the anolyte and catholyte were measured.

  9. Organiser l'activité innovante et la protection par le brevet

    Ayerbe, Cécile

    2008-01-01

    Cette HDR est dédiée à l'étude du management de l'innovation. Elle est orientée autour de trois axes : la complémentarité entre innovations technologique et organisationnelle, l'organisation de la propriété industrielle et une réflexion sur les méthodologies qualitatives en sciences de gestion.

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

    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.

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

    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.)

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

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

    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.)

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

    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.)

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

    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.

  16. Contact Lens Wear and Protease Acid beta-galactosidase Activites in the Tear Fluid

    Čejková, Jitka

    New Orleans : LSU Eye Center, 2001. s. 4. [Symposium on the Material Science and Chemistry of Contact Lenses /12./. 18.07.2001-20.07.2001, New Orleans] R&D Projects: GA ČR GV307/96/K226; GA ČR GA304/00/1635 Keywords : proteases * glycosidases * tear film Subject RIV: FF - HEENT, Dentistry

  17. 1995-1996 progress report; Rapport d`activite 1995-1996

    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.)

  18. Rapport d'activité 2006-2007 : Culture Scientifique et Technique

    Bernard, Dominique; Le Gall, Alain-Hervé; Bourlès, Stéphane; Jézéquel, Isabelle; Lefeuvre, Marie-Aude

    2008-01-01

    Notre université compte de nombreux laboratoires mixtes réunissant universitaires, enseignants-chercheurs et chercheurs des grands organismes de recherche dont une des missions est la diffusion des connaissances et l'éducation à la culture scientifique (ces acteurs n'hésitent pas à "mettre la main à la pâte" pour faire partager leurs passions, leurs savoirs et leurs doutes). L'université de Rennes 1 dispose de plusieurs structures muséales et de conservation de collections : - sur le campus d...

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

    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...

  20. Conscience et activité métalinguistique. Quelques points de rencontre

    Huot, Diane; Schmidt, Richard

    2011-01-01

    Cet article présente un examen des recherches et des modèles d’acquisition en L2 qui doit permettre d’éclairer les choix pédagogiques des professeurs, choix qui sont nécessairement sous-tendus par une conception de l’apprentissage. Les auteurs évoquent en particulier la question des processus conscients vs inconscients et explicites vs implicites, et soulèvent les problèmes d’ordre terminologiques qui existent autour de ces notions dans une même langue ou dans le passage d’une langue à l’autr...

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

    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.)

  2. Prédiction de l'activité dans les réseaux sociaux

    Kawala, François

    2015-01-01

    This dissertation is devoted to a social-media-mining problem named the activity-prediction problem. In this problem one aims to predict the number of user-generated-contents that will be created about a topic in the near future. The user-generated-contents that belong to a topic are not necessary related to each other.In order to study the activity-prediction problem without referring directly to a particular social-media, a generic framework is proposed. This generic framework allows to des...

  3. ENUMERATION, TRANSPORT AND SURVIVAL OF BACTERIA ATTACHED TO GRANULAR ACTIVITATED CARBON IN DRINKING WATER

    The surfaces of granular activated carbon (GAC), sand, and anthracite particles were found to be populated to the same levels with heterotrophic plate count (HPC) bacteria. GAC supported a greater number of Klebsiella oxytoca than the other two filter media. In a study of operati...

  4. Activités parascolaires et climat de classe, quels liens ?

    Philippin, Emilie; Botteron, Michel

    2014-01-01

    Le climat de classe a une grande influence sur les apprentissages, le bien-être des élèves et des enseignants. Il contient plusieurs composants qui peuvent se travailler ensemble et simultanément ; le climat relationnel, le climat éducatif, le climat d’appartenance, le climat de justice et le climat de sécurité. Ces composants regroupent plusieurs caractéristiques. Prendre connaissance de ces dernières permet d’acquérir de bonnes bases pour celui qui souhaite bénéficier d’un bon climat de cla...

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

    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.

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

    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.)

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

    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.

  8. Quelles places pour les activités logistiques dans la métropole parisienne ?

    Raimbault, Nicolas; Bahoken, Françoise

    2014-01-01

    Version preprint d'un article à paraître en 2014 dans la revue Territoire en Mouvement n°23-24 : " Villes et industries : crises, recompositions, et nouvelles dynamiques " Warehouses and distribution centres are key-places for production systems. They are dedicated to the management of increasingly global and complex commodity chains which characterise "hyper-industrial" economies (Veltz, 2000). They are established in metropolitan regions predominantly, like Paris. In this urban region, w...

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

    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.)

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

    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.)

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

    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.

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

    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.)

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

    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

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

    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.)

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

    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.)

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

    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.)

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

    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

  18. Capitalisation et partage de connaissances d'analyse de traces numériques d'activités : Assister le suivi de l'activité dans les environnements de formation à base de simulateur pleine échelle

    Champalle, Olivier

    2014-01-01

    Our research takes place in the field of knowledge engineering. In particularly we focus our study in capitalizing and sharing knowledge of observation and analysis of digital traces. In this context, we base our approach on the concept of modeled trace (M-Trace) developed by the SILEX team. Our approach give the possibility to exploit low levels digital traces in order to extract higher knowledge level through rule-based transformations. These rules modelize the knowldege of observation and ...

  19. Capitalisation et partage de connaissances d’analyse de traces numériques d’activités : assister le suivi de l'activité dans les environnements de formation à base de simulateur pleine échelle

    Champalle, Olivier

    2014-01-01

    Our research takes place in the field of knowledge engineering. In particularly we focus our study in capitalizing and sharing knowledge of observation and analysis of digital traces. In this context, we base our approach on the concept of modeled trace (M-Trace) developed by the SILEX team. Our approach give the possibility to exploit low levels digital traces in order to extract higher knowledge level through rule-based transformations. These rules modelize the knowldege of observation and ...

  20. Activité leishmanicide de plantes issues de la pharmacopée traditionnelle Péruvienne et de molécules de synthèse; étude relation structure activité.

    Estevez, Yannick

    2009-01-01

    New world Leishmaniasis are parasitosis with heavy socio-economic consequences. Nowadays the commercially available treatments require parenteral administrations and are not affordable for the concerned populations. The search for new active molecules is thus urgently needed. To contribute to the research effort of therapeutic alternative, we were interested in traditional pharmacopeia of populations living in endemic zone (two ethnic groups of Peruvian Amazonia: the Chayahuita and the Yanesh...

  1. 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

    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.)

  2. Psychologie des entrepreneurs, localisation des activités innovantes et pertes à l’échange international

    Blanchard, Michel; Peltrault, Frédéric

    2005-01-01

    Following the Green Paper dealing with the entrepreneurship in Europe, the European Commission put forward the thesis that Europe suffers from an “entrepreneurship deficit” in comparison to the US. This paper presents a model dealing with the consequences of managers’ optimism and pessimism behaviour on the localisation of innovative activities and welfare. If at least one country is better off under free trade, numerical simulations show that the other country and the world as a whole can be...

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

    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.

  4. Management des activités de veille stratégique : entre une organisation formelle et informelle

    Manelle Guechtouli

    2014-01-01

    This paper is about human and organizational issues of a Competitive Intelligence (CI) system. The idea here is to help managers who want to implement/refresh CI activities in their companies. After a literature review, we suggest to analyze organizationa

  5. EVALUATION DE L’ACTIVITE ANTIBACTERIENNE DE L’HUILE ESSENTIELLE d’Eucalyptus camaldulensis RECOLTE EN ALGERIE

    A. OUELHADJ

    2015-01-01

    Full Text Available In this study, the antibacterial activity of essential oil of Eucalyptus camaldulensis, collected in the province of Tizi-Ouzou, North of Algeria, was tested in vitro on bacterial strains belonging to the ATCC collection (Escherichia coli, ATCC 25922; Pseudomonas aeruginosa, ATCC 727853 and taphylococcus aureus, ATCC 25923 and on a clinical isolate of a bacterial strain Klebsiella pneumoniae isolated in the laboratory of bacteriology from CHU Mohamed Nadir of Tizi-Ouzou. The study of the antibacterial activity was carried out by the method of agar diffusion. Essential oil revealed an antibacterial activity with respect to the bacterial strains tested. However, essential oil of Eucalyptus camaldulensis showed a very strong activity against Staphylococcus aureus (diameter of inhibition = 22.66 mm.The antibacterial activity of essential oil was confirmed by the method of microdilution (minimal inhibiting concentration. The results obtained are very encouraging and make it possible to suggest that the essential oil of Eucalyptus camaldulensis has compounds having important antibacterial properties, which enables to foresee their application in pharmaceutical industry. So we tried to open a way for the exploitation of essential oils to fight against pathogenic bacteria multi resistant to antibiotics.

  6. E-learning : Tracer l'activité des apprenants pour favoriser leur appropriation des systèmes ?

    Ollagnier-Beldame, Magali; Mille, Alain

    2008-01-01

    Les nouvelles technologies de l'information et de la communication ont investi le domaine de l'enseignement et de la formation. Par ailleurs, les performances des solutions e-learning sont à ce jour jugées insatisfaisantes par les entreprises. Parmi les origines de cet état de fait, nous pensons que la méconnaissance de ce qui se passe en situation d'utilisation joue un rôle important. En effet, la compréhension de ce qui se joue dans les interactions entre apprenant(s) et système(s) est fond...

  7. L'activité professionnelle des femmes au début des années 1990

    Olivier Marchand

    1993-01-01

    Marchand (Olivier). - Women's Labour Force Activity during the early 1990s In spite of a reduction in the length of their working life (longer education and earlier retirement), the number of economically active women in France increased between 1982 and 1990. This resulted from higher labour force participation between the âges of 25 and 55, where the importance of marital status on labour force participation has gradually declined. This trend has been found both among skilled workers, where...

  8. A.C.R.O. activity report 2006; A.C.R.O. rapport d'activite 2006

    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.)

  9. Le maître d’école et la promotion de l’activité physique

    Cloes, Marc

    2013-01-01

    L'école est considérée comme un des principaux piliers de la promotion d'un style de vie actif au sein de la population. Au-delà des professeurs d'éducation physique, véritables pierre angulaire de cette action multisectorielle, les maîtres d'école (instituteurs) doivent également être sensibilisés à ce type d'action car ils influencent particulièrement les enfants et peuvent ainsi contribuer à leur donner de saines habitudes de vie. L'exposé prend les représentations comme fil conducteur, af...

  10. Etude phytochimique de plantes amazoniennes d'activité antiplasmodiale, dont Pseudoxandra cuspidata Maas et Tapirira guianensis Aubl.

    Roumy, Vincent

    2007-01-01

    Le paludisme est la première cause de mortalité dans le monde. Ce problème de santé publique est en grande partie expliqué par l'émergence perpétuelle de chimiorésistances aux principaux antipaludiques. La recherche de nouveaux traitements accessibles et efficaces contre son agent pathogène, Plasmodium falciparum, constitue donc une urgence. Le travail exposé dans cette thèse porte sur un des axes majeur de cette quête : l'exploration phytochimique de plantes utilisées dans différentes médeci...

  11. La compétence en formation : Entre instrumentalisation de la notion et instrumentation de l'activité

    Albero, Brigitte; Nagels, Marc

    2011-01-01

    International audience Tenté d'emprunter au monde de l'entreprise ses outils de management, l'enseignement supérieur ne peut ignorer les résultats de la recherche en sciences humaines et sociales produits dans le domaine. L'introduction tardive à l'université de la notion de " compétence " en offre un exemple particulièrement éclairant. Elle montre l'oscillation permanente de sens et d'usage, d'un terme pris sur le terrain, entre deux tendances aux logiques opposées, sinon contradictoires ...

  12. Synthèses et réactivités des cétones -fonctionnalisés

    FEROUANI, Ghaniya

    2011-01-01

    La réalisation des synthèses organiques à grande échelle et la recherche continuelle d’optimisation des procédés, donnent aujourd’hui une importance économique considérable à la chimie organique. La preuve de la diversité et de l’intensité des recherches, plus d’un million des composés organiques ont été aujourd’hui identifies et caractérisés, beaucoup d’entre eux ayant une application dans notre vie quotidienne.

  13. Approche théorique de la réactivité des isonitriles en chimie organique

    Chéron, Nicolas

    2011-01-01

    Les isonitriles sont des espèces connues depuis longtemps, mais étudiées depuis peu. Une approche théorique a permis de s'intéresser en détails aux réactions de Nef et de Ugi. Nous nous sommes tout d'abord focalisés sur la première. Après en avoir élucidé le mécanisme, nous avons étudié l'effet du solvant et nous avons proposé de nouvelles conditions expérimentales. Nous avons ensuite étudié l'influence des groupements de l'acyl, de l'isonitrile et du groupe partant. L'ensemble des variations...

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

    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.)

  15. ANDRA activity and sustainable development report 2010; ANDRA rapport d'activite et de developpement durable 2010

    NONE

    2011-07-01

    After a presentation of the ANDRA (the French national agency for the management of radioactive wastes), and of the main actors of the management of radioactive wastes in France, this report indicates and comments actions performed by the ANDRA on its different sites, government decisions, projects, control operations, international cooperation, or information actions which occurred during 2010. These actions concern waste storage or recycling, research and development, storage sites and equipment, information actions or campaign

  16. Prevalence and predictors of unsolicited exposure to and involvement in online sexual activites among young Internet users in Lagos metropolis

    Michael O.N. Kunnuji

    2013-04-01

    Full Text Available The study draws empirical evidence from adolescents (aged 10 to 19 years and young adults (20 to 24years who use the Internet in exploring the relationship between two sets of independent variables – backgroundcharacteristics and context of Internet use and two sets of dependent variables – unsolicited exposureto online materials with sexual contents, and involvement in online sexual activities. The backgroundcharacteristics explored in the study are age, sex, autonomy (whether living alone or with parents, access tofunds and parent-child communication, while the Internet use context variables are place of access, all-nightInternet use and intensity of use. The study reveals that close to half of the subjects had been involved in atleast one online sexual activity with intensity and time of Internet use as the strongest predictors of involvement. doi: 10.11564/27-1-3

  17. Panorama 2010: Activities and markets in exploration-production; Panorama 2010: Activites et marches en exploration-production

    Saniere, A.; Serbutoviez, S.

    2010-07-01

    At year-end 2008, a sharp decrease in oil and gas demand coupled with a credit crunch caused the postponement of many exploration-production projects. 2009 was marked by substantial over-capacity in terms of equipment and installations, which drove down the level of activity, the price of services and the income of suppliers. The year is nonetheless perceived as marking a lull in an upward cycle and capital expenditure is expected to rise slightly in 2010. (author)

  18. 1996 Progress report on energies and raw materials; 1996 rapport d`activite energies et matieres premieres

    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

  19. ACTIVITE ANTIMICROBIENNE ET ANTIOXYDANTE D’EXTRAIT AQUEUX DE FRUIT DE Zyziphus lotus.L. DE LA REGION TAOUNATE

    S. LAIRINI

    2015-01-01

    Full Text Available In Morocco, Zyziphus lotus.L. is widely used in traditional edicine plant. It is mainly harvested in the region Taounate. This study aims to evaluate the antimicrobial activity of an aqueous extract prepared from the fruit of this plant on Staphylococcus aureus, Listeria monocytogenes, E. Coli, Penicillium expansum and Candidum geotricum diffusion on the one hand, and analyze both the rate of total polyphenols by the Folin-Ciocalteu's and the antioxidant power of diphenylpicrylhydrazyl (DPPH secondly. The results show that the extract contains total polyphenols of 5μg/mg and has an antimicrobial effect from 0.31 mg /ml for Staphylococcus aureus (inhibition diameter :7,10±0,20 mm and Listeria monocytogenes (6.93 ± 0.15 mm, 0.46 mg / ml for E. coli (9.10 ± 0 , 20mm, 0.62 mg / ml for Penicillium expansum (5.07 ± 0.25 mm and Geotricum Candidum (6.13 ± 0.21 mm. Moreover, the test of the aqueous extract by DPPH shows anti-radical of about 85.79% activity. The extract of Zizyphus lotus.L. seems to have a very interesting antioxidant power.

  20. A.C.R.O. activity report 2004; A.C.R.O. rapport d'activite 2004

    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.)

  1. Contexte et intention dans la détermination de l’activité: une nouvelle topique des motivations

    Lahlou, Saadi

    2010-01-01

    Context and Intention in the Process of Activity: A new topology of motivation. The problem of unexpected diversions in the course of activity is illustrated by a survey on office-work; addressing the question « Why are we doing things that we ourselves consider to be unimportant, at a time when we have other more important things to do? » This is puzzling for classical psychological theories. Starting from this very ordinary, everyday example of office work, this article addresses the genera...

  2. Mobilité du capital, polarisation des activités et union européenne

    Dupuch, Sébastien; Mazier, Jacques

    2003-01-01

    With the implementation of the European currency, adjustment mechanisms within the EU (European Union) deeply change. This article focuses on capital mobility, highlighted through foreign direct investment (FDI). The determinants of intra-European FDI and their impact on country specialisation are successively considered, discerning counterbalancing and agglomeration factors. We show that such as geographic proximity, trade links and market potential contributed to FDI concentration in core c...

  3. The storage center of very-low level radioactive wastes; Le centre de stockage des dechets de tres faible activite

    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.)

  4. Activité inhibitrice et peptides inhibiteurs de l'ACE dans différentes sortes de fromage

    Sieber, Robert; Bütikofer, Ueli; Egger, Charlotte; Portmann, Reto; Walther, Barbara; Wechsler, Daniel

    2010-01-01

    International audience During the ripening of cheese, a large number of peptides are formed from casein. Some of these peptides have been shown to exert an antihypertensive effect due to their angiotensin-I-converting enzyme (ACE)-inhibitory activity. Recently, several studies have investigated the ACE-inhibiting potential of cheese, and various ACE-inhibiting peptides have been isolated and identified from different cheese varieties. The present review focuses on the occurrence of two tri...

  5. 2004-2006 activity report of Dapnia; Rapport d'activite 2004-2006 du Dapnia

    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.)

  6. Enseigner l'informatique débranchée : analyse didactique d'activités

    Drot-Delange, Béatrice

    2013-01-01

    L'enseignement de l'informatique en tant que science a repris place dans le système éducatif français sous une forme optionnelle pour les filières scientifiques en terminales au lycée (Drot-Delange, 2012). En marge des disciplines scolaires, des initiatives ont vu le jour pour diffuser cette culture scientifique et technique. L'enseignement de l'informatique sans ordinateur (dite informatique débranchée ou Computer Science Unplugged) en est un exemple. Véritable communauté internationale, fon...

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

    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.).

  8. Energy National Mediator activity report 2009; Rapport d'activite du Mediateur National de l'Energie 2009

    NONE

    2009-07-01

    After some data illustrating the activity of the Energy National Mediator in 2009, and an interview of a representative of this institution who comments its practice, this report proposes the opinions of the different involved actors (communities, consumer associations, providers, and so on) about the mediator. It puts the adopted strategy in perspective from the past year to the coming one. It describes the missions: information, advice, protection. It reports actions, recommendations and facts for 2009 in terms of consumer information, group mediation, poverty management, samples of analysed disputes. It presents the social organisation and gives a financial assessment of the institution

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

    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.)

  10. Approche psychologique de l'activité de traversée de piétons au carrefour

    Tom, A; AUBERLET, JM; BREMOND, R

    2008-01-01

    Chaque année en France 800 piétons sont tués, et 17 000 sont blessés, 95% des accidents corporels impliquant au moins un piéton se produisent en agglomération (82% des tués piétons) et 34% des accidents corporels impliquant au moins un piéton se produisent en intersection. Le programme d'amélioration du déplacement pour le piéton passe en premier lieu par la sécurité donc par la réduction des conflits piétons-véhicules. Pourtant, les déplacements des piétons ne sont pas toujours aisés à décri...

  11. L'instrumentation des activités publiques. Le cas d'une université

    Dreveton, Benjamin; Lande, Evelyne; Portal, Marine

    2011-01-01

    Les universités françaises doivent faire face à de nouvelles contraintes budgétaires et financières qui induisent l'introduction de nouveaux outils de management. L'objectif de la recherche est d'explorer le rôle joué par les représentations sociales des acteurs dans l'émergence d'un outil de gestion en sollicitant une grille de lecture institutionnelle de l'environnement. La méthodologie est fondée sur une recherche action d'un an au sein d'une université ayant permis d'étudier les attentes ...

  12. Neutron activitation analysis of an air-dust sample using a high-flux 14 Mev neutron generator

    The 14 MeV neutron activation analysis technique is illustrated for multielement analysis of a Milanese air-dust sample. The neutron generator and electronic system, the efficiency and flux calibration, the γ-ray background, the sample preparation and the peak analysis used are described. After careful corrections of all possible interferences and error calculations, the results of 24 elemental concentrations are compared with those of other analytical techniques in the scope of an interlaboratory test. (orig.)

  13. OPINIONS OF THE GIRLS' VOCATIONAL HIGH SCHOOL STUDENTS ABOUT APPLICATION LEVEL OF ACTIVITES DURING THE SKILL EDUCATION IN ENTERPRISES

    ÜSTÜN, Gülçin

    2009-01-01

    ABSTRACT The aim of this research is to investigate the opinions of the Girls' Vocational High School textiles-confection students about the skill education applications in enterprises included in school-industry cooperation and hence to measure the realization level of the skill education applications in accordance with the Vocational Education Law, number 3308. The research is modeled as a documentary scan and descriptive study. At the end of the study, the data obtained from students ind...

  14. LES TERRITOIRES, ACTEURS EMERGENTS DU DEVELOPPEMENT AGRICOLE PERIURBAIN ? REPRESENTATIONS DE L'ACTIVITE AGRICOLE DANS LES PROJETS DE TERRITOIRES PERIURBAINS

    Duvernoy, Isabelle; Barthe, Laurence; Lima, Stéphanie

    2010-01-01

    This paper results from an on-going research on the interconnections between rural development processes and farming development in the South of France. (Haute-Garonne and Tarn departments). We elaborate a tool to classify the links between farming and territorial development in territorial projects, according to two geographical theories of territoriality. We have analysed the representations of farming in three sample “Pays” (cross-municipality structures with participatory local developmen...

  15. L'impact des NTIC sur le choix et l'organisation des activités touristiques

    STUMM, M.; BOLLO,D

    2006-01-01

    L'usage des technologies de l'information est bien connu depuis l'émergence dans les années 70 des grands systèmes d'information dédiés à la réservation aérienne. Dans les années 80 on a assisté à une concentration importante de ces systèmes et à une extension continue des services qu'ils proposaient. Ils ont pris le nom de GDS (Global Distribution System). Longtemps cantonnés aux seules agences, puis aux grandes entreprises ces systèmes proposent à partir des années 90 leurs services au pub...

  16. Analiza activităţilor economice in Zona Costieră a Mării Negre

    Alina Chicoş

    2012-09-01

    Full Text Available The Spatial Development Plan of the Romanian Black Sea Coastal Area committed by the Ministry of Regional Development and Tourism for the Romanian Black Sea Coastal Area is meant to provide the territorial planning framework for the future implementation of Integrated Coastal Zone Management. This paper focuses on the analysis of the territorial spread of economic performance in various business sectors and, in particular of activities linked to tourism as one significant source of revenue in the area. The analytical method used proves to be a useful tool to identify the specific spatial pattern of structural profiles and employment within the network of urban and rural settlements while highlighting particular spatial disparities as compared to local resources.

  17. Éthique professionnelle et activité médicale: une analyse en termes de conventions

    Philippe Batifoulier

    1999-01-01

    This article is an attempt to explain professional ethics in the health sector. On the one hand, the scope and limitations of the traditional approach are examined. In this analysis, professional ethics is reduced to a constraint or an incentive contract. On the other hand, it should be stressed that the so called "economics of conventions" is a judicious approach to explain professional ethics. This article studies the cognitive and emotive contents of this convention.

  18. DE LA SURVEILLANCE DES ACTIVITES HUMAINES EN MER. ESSAI SUR LES RAPPORTS DU DROIT ET DE LA TECHNIQUE.

    Leboeuf, Cédric

    2013-01-01

    Mention très honorable, Félicitations du jury Truly prospective technique is often at the roots of substantial changes to the Law. It impacts on our social environment using legal restrictions to limit physical and moral damages by utilising the advanced technical process. The implementation of a new application, its use and commercialisation, should observe legal norms respecting the numerous and varied arms of law. As one of the structuring elements of society, law is impacted by techniq...

  19. Hydrogen and fuel cell activity report - France 2009; Rapport d'activites Hydrogene et Piles a combustible - France 2009

    NONE

    2009-07-01

    The report gathers the main outstanding facts which occurred in France in the field of hydrogen and fuel cells in 2009. After having noticed some initiatives (French commitment in renewable energy production, new role for the CEA, cooperation between different research and industrial bodies, development of electric vehicles, research programs), the report presents several projects and programs regarding hydrogen: ANR programs, creation of a national structure, basic research by the CEA and CNRS, demonstration projects (H2E), transport applications (a hybrid 307 by Peugeot, the Althytude project by GDF and Suez, the Hychain European project by Air Liquide, a dirigible airship, an ultra-light aviation project, a submarine), some stationary applications (the Myrte project, a wind energy project), activity in small and medium-sized enterprises, regional initiatives, colloquiums and meetings.

  20. Modéliser les activités cognitives des hommes au Paléolithique

    Saillot, Isabelle; Patou-Mathis, Marylène; Richard, Jean-François; Sander, Emmanuel; Poitrenaud, Sébastien

    2006-01-01

    As far as paleolithic cognitive processes are concerned, most studies define their own vocabulary and method, usually using current words while ascribing them various meanings. No debate can hence be fruitfull. We suggest an alternative approach which is to address the numerous and accurate concepts developped since about fourty years by cognitive psychology and especially its experimental branch. Cognitive psychology of goal oriented actions is in fact a powerful tool provider in the att...

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

    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.).

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

    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.)

  3. French butane propane committee. 2003 activity report; Comite Francais du Butane et du Propane. Rapport d'activite 2003

    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.)

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

    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.)

  5. Vieillissement, activité physique et apprentissage moteur : effets de la complexité de la tâche.

    Albinet, Cédric

    2004-01-01

    Human aging is characterized by a decrease in both efficiency and speed of cognitive and sensory-motor processes. However, the dynamic of ageing is not the same for all the individuals. Some factors, linked to the way of life such as regular physical exercise, could modulate the aging effects. The aim of this dissertation is to examine under which conditions maintaining a physically active life-style could compensate for the age-related declines in the learning of a new motor-skill. More prec...

  6. French butane propane committee. 2004 activity report; Comite francais du butane et du propane. Rapport d'activite 2004

    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.)

  7. Antimicrobial Activites of the Extracts of Various Plants (valex, mimosa bark, gallnut powders, Salvia sp. and Phlomis sp.)

    DIĞRAK, Metin; ILÇIM, Ahmet

    1999-01-01

    The antimicrobial activities of valex (an extract of valonia), the extracts of mimosa bark, gallnut powders, Salvia aucheri var. aucheri and Phlomis bourgei were studied. The antimicrobial efficiency of the above plants was evaluated according to the disk diffusion method by using Bacillus brevis FMC 3, Bacillus subtilis IMG 22, Bacillus cereus EÜ, Escherichia coli DM, Pseudomanas aeruginosa DSM 50071, Staphylococcus aureus Cowan 1, Listeria monocytogenes A, Micrococcus luteus LA 2971, K...

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

    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.

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

    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.).

  10. Synthèse de Produits Naturels à Activité Biologique Importante : Iridal, Acide Galbanique, Marneral et analogues.

    Corbu, Andrei

    2008-01-01

    The research area of my Ph.D. thesis is the methodological development of useful reactions, that permit developing the total syntheses of various natural products. A central role is played by a "domino" reaction that employs lead tetraacetate to produce highly functionalized cyclohexane moieties possessing multiple functions and asymmetric centers. The mild reaction conditions, together with the ease of the experimental and the absence of any detectable side products, constitute the most outs...

  11. Use of functional MRI to evaluate correlation between acupoints and brain cortex activites: comparison between conventional and electrical acupuncture

    Wong, KKK; Leung, MCT; Ma, QY; Chan, JHM; Li, R; Yang, ES; Wong, V; Li, G.

    2000-01-01

    The use of acupuncture therapy in various functional disorders goes back several thousand years in China. Recendy, acupuncture becomes a 'hot' topic in the functional Magnetic Resonance (MR) imaging research studies [1-4]. A majority of these research projects is to study die correlation between the acupuncture points (acupoints) and die corresponding brain cortices, either by conventional acupuncture, electro-acupuncture or laser acupuncture. Cho et al reported mat by stimulating die vision-...

  12. Biologia di Tuta absoluta (Lepidoptera: Gelechiidae), interazioni con l’ambiente e valutazione di tecniche di contenimento ecocompatibili

    Frati, Sandro

    2013-01-01

    Tuta absoluta (Meyrick) è un lepidottero originario dell’America meridionale, infeudato a pomodoro e ad altre solanacee coltivate e spontanee. Con l’attività trofica le larve causano mine fogliari e gallerie nei frutti, con conseguenti ingenti danni alle colture. T. absoluta è stato segnalato per la prima volta in Italia nel 2008 e in Piemonte nel 2009. Pertanto le ricerche sono state condotte per rilevarne la distribuzione in Piemonte, studiarne l’andamento di popolazione in condizioni natur...

  13. Distant analysis of the isotopic composition of H{sub 2}, D{sub 2}, T{sub 2} and H{sub 2}O, D{sub 2}O, T{sub 2}O mixtures by spontaneous Raman spectroscopy; Analyse a distance de la composition isotopique de melanges (H{sub 2}, D{sub 2}, T{sub 2}) et (H{sub 2}O, D{sub 2}O, T{sub 2}O) par spectroscopie Raman spontanee

    Chaufour, Y

    1996-01-10

    This work concerns the quantitative analysis of hydrogen isotopes in of H2/D2/T2 and H20/D20/T20 mixtures. The radioactivity of tritium and its nuclear environment explain the need for distant analysis. Spontaneous Raman spectroscopy has been chosen as analytical tool because it can differentiate all the isotopic molecules we are interested in. The possibility to record spectra distantly with optical fibers makes it a good solution for the two cases we are presenting. For tritiated water analysis we have used a multi-fiber probe which penetrates the glovebox and allows to record the water spectrum through the closed glass flask which contains it. In two minutes we can detect 0.56 molar % of H20 and D20, and 0.056 molar % of 120 (1800 i/l). For gaseous hydrogen mixtures we have developed a multipass cell connected to the Raman installation with one hundred meter optical fibers. Each of the six molecular species resulting of isotopic exchanges are detected in two minutes until partial pressures of 2O mbar. (author) 80 refs.

  14. 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

    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)

  15. 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

    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.)

  16. Les facteurs d'accidents de la route par somnolence chez les conducteurs âgés : prévention par l'activité physique

    GRUAU, S; Pottier, A; DAVENNE, D; DENISE, P

    2003-01-01

    La somnolence au volant est un facteur fréquent de survenue d'accidents et la première cause d'accidents mortels sur autoroute en France, notamment pour les personnes âgées. En effet, le vieillissement s'accompagne de perturbations chronobiologiques, qui retentissent notablement sur la vigilance diurne et peuvent affecter la performance de conduite. La qualité du sommeil nocturne diminue et le sommeil apparait sous forme de petits sommes de plus en plus fréquents pendant la journée. (sleepine...

  17. L’erreur comme défaut et moyen de contrôle de l’activité en situation de travail

    Jacques Leplat

    2009-01-01

    In activity, the error is often evaluated in a negative manner, as the absence of succes. But the error may also have a positive role in that it reveals the characteristics of the activity: so, its knowledge can be a way to control the action, as shown, in particular, the regulatory model for which the action is regulated based on differences in purpose. It is precisely from this model that will be organized this paper. It sugests this can be a framework for analysing the error by showing the...

  18. Agrice 2004. Activity report - from bio-resources to industry; Agrice 2004. Rapport d'activite - des bioressources a l'industrie

    NONE

    2005-07-01

    It has been ten years since AGRICE was founded to support technological research in the field of bio-products. Even if bio-products are indeed a commercial reality, and growing in diversity, they are still marginal in the marketplace. However, the amplification of the greenhouse effect, our increasing energy dependence, the inexorable rise in oil prices, international competition and the emergence of a genuine political awareness are all factors that converge in favour of bio-products, offering a promising future. Of course, the development of bio-products is dependent on a number of conditions: biomass resources, technological advances, mobilisation of actors through dynamic research programmes (conversion of lignocellulosic biomass for alternative fuels or hydrogen, bio-technology applied to chemicals), new agro-industrial supply chains, financial instruments to bridge the cost gap with fossil fuels, a national strategy supported by a public authority dedicated to non-food uses. In the immediate future, the recent decision to open up the biofuels market via implementation of the European biofuels directive (5.75% of the market in 2010) provides an opportunity to lay the groundwork for a veritable industry of plant-based products, opening the way to the bio-refineries of the future. There is considerable potential for the development of bio-products in France. An additional 25 to 30 million tonnes-oil-equivalent (toe) of agricultural and forestry biomass could be processed into energy and industrial bio-products in France. Accordingly we can set our sights on an overall objective of substituting plant feedstocks for petroleum used in fuels and chemicals, on the order of 10% in 2020, and 20 to 30% by 2030-2050. To achieve these goals many technological advances will be necessary, with constant attention to the requirements of sustainable development. In this respect AGRICE is an invaluable tool for guiding, catalysing and supporting research efforts in these fields. The AGRICE 2004 activity report presents: - the AGRICE's Profile, Scope of activity, Structure and operations and Project management, the Treatment of results; - AGRICE's sectors of activity: in energy (Liquid biofuels for vehicles, Non-vehicle biofuels), and in chemicals (Biomolecules, Biomaterials); - the year 2004: Financial statement and applications, Noteworthy achievements, Events, Working groups, Europe-wide activities and collaborations. In appendix: the Projects initiated in 2004, the Projects completed in 2004, the Financial statement 1994-2004, the Breakdown of aid by sector (1994-2004), the Partners and members of the Group Council and The AGRICE team

  19. La médecine pratique : une activité heuristique à la fin du 18e siècle?

    Rieder, Philip Alexander

    2015-01-01

    La médecine pratique était une discipline médicale au cap du 19e siècle. En partant de l'analyse statistique des publications et de l'analyse détaillée de la production scientifique d'un médecin, l'objectif de l'article est de montrer que ce champ a joué un rôle important dans l'évolution des idées médicales en permettant la mise en avant d'un savoir médical libre, selon ses concepteurs, d'héritages historiques. L'analyse signale le rôle joué par la médecine pratique dans la rationalisation d...

  20. Les activités de cueillette dans la société lélé (Tchad, Tandjilé)

    Garrigues-Cresswell, M.

    1997-01-01

    Le temps consacré à la cueillette et le rôle important des produits sauvages dans la vie des Lélé, agriculteurs du sud du Tchad, ont été le point de départ de cette étude. Sur 147 plantes utilisées et identifiées, 60 d'entre elles participent à l'alimentation (fruits, graines, feuilles, tubercules...), 46 plantes ont des utilisations techniques et 72 plantes font partie de la pharmacopée. L'étude des groupements spontanément réalisés par les villageois permet de dégager trois types de classem...

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

    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. Le torrent de Chirlești (Carpates de la Courbure, Roumanie) : un demi-siècle d'activité

    Lahousse, Philippe; Pierre, Guillaume; Ene, Marian; Diaconu, Daniel; Visan, Mircea

    2016-01-01

    Le torrent de boue de Chirleşti, dans les Carpates de la Courbure, est un organisme atypique associant une morphologie de torrent et un dynamisme de coulée boueuse. Apparu au début des années 1950, dans un contexte de forte anthropisation, ce torrent de boue a immédiatement causé des dommages sur les habitations situées à son exutoire, et ses débris ont finalement atteint, en 2010, la route nationale et la voie ferrée qui empruntent la vallée du Buzău. Le suivi morphométrique de l'ensemble du...

  3. De l'empowerment à l'engagement du client sur les plateformes en ligne : ou comment favoriser l'activité des clients sur Internet

    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...

  4. Traitements électrochimiques contrôlés sur diamant : corrélation entre chimie superficielle et réactivité électrochimique

    Girard, Hugues

    2008-01-01

    Le diamant présente un grand nombre de propriétés très intéressantes, à la fois dans le domaine de l'électronique, de l'optique, mais aussi en électrochimie. Dopé au bore, c'est un semiconducteur à grande énergie de bande interdite (≈5,5 eV) et il est utilisé en tant que matériau d'électrode en raison de sa forte inertie chimique, de ses faibles courants résiduels et de son large domaine d'électroactivité. Toutes ces caractéristiques ont conduit à des applications dans le domaine de la détect...

  5. Planification décentralisée des activités de production et de transport: coordination par négociation

    Jia, Zhenzhen

    2012-01-01

    The present work aims to study the coordination problems in the context of decentralizedplanning, based on the postulate that centralized management is not suitable regarding theconfidentiality objectives of each partner of the same supply chain. More specifically, the aimof this work is to develop a negotiation protocol seeking to reach a “win-win” planningsolution, i.e. the development of plans satisfying the producer (the customer of transportationservice) while increasing profit of transp...

  6. Research Progress on Biological Activites of Lichens Secondary Metabolites%地衣次生代谢物生物活性的研究进展

    古丽加汗·沙吾提; 阿不都拉·阿巴斯

    2007-01-01

    Lichens are a world-wide spread consortium of fungal and photosynthetic partners. Lichens produce a wide array of both primary and secondary metabolites (lichen substances). The lichen substances may be classified into the following groups: aliphatic lichen substances,aromatic lichen substances and carbohydrates (polysaccharides). Lichen metabolites exert a wide variety of biological actions including antibiotic, antimycobacterial, antiviral, antiinflammatory, analgesic, antipyretic, antiproliferative and cytotoxic effects. This paper mainly reviews research progress of studies on biological activities of lichens secondary metabolites including chemistry of lichen substances,the possible roles of lichens secondary metabolites in nature and biological activities of lichens secondary metabolites particular attention is paid to some secondary metabolites of lichens,focusing on a number of its biological activities in different fields.%地衣是一种真菌与藻类的共生体,是广泛分布于世界各地.地衣可以产生很多初生和次生代谢物(地衣物质).地衣物质分为脂肪族地衣物质,芳香族地衣物质和碳水化合物(多糖类)等几个组.地衣代谢物用于一系列各种各样的生物学行为包括抗生素、抗细菌、抗病毒、抗炎、止痛、除虫、抗增殖和细胞毒性效应等.本文主要综述了地衣次生代谢物的化学分类,地衣次生代谢物在自然界中的重要作用,地衣次生代谢物的生物活性等几个方面,并集中综述了有些重要地衣次生代谢物及其在不同领域中的几种生物活性问题.

  7. French Committee of Butane and Propane. 2006 activity report; Comite francais du butane et du propane. Rapport d'activite 2006

    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.)

  8. La relance des activités de biométrie au sein de la recherche agronomique zaïroise

    Kizungu, V.

    1996-01-01

    Full Text Available The Revival of Biometrie Activities in the Zairean Agricultural Research. This paper gives an overview of biometrie activities in the Zairean agricultural research. Biometrie methods were introduced by INEAC in 1953. The activities were discontinued in 1960 and then started again in 1990. The paper also provides new perspectives.

  9. Theoretical physics department, june 96-may 98 status report; Service de physique theorique, rapport d`activite juin 1996 - mai 1998

    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.)

  10. Activité larvicide sur Anopheles gambiae Giles et composition chimique des huiles essentielles extraites de quatre plantes cultivées au Cameroun

    Tchoumbougnang F.; Dongmo PMJ.; Sameza ML.; Mbanjo EGN.; Fotso GBT.; Zollo PHA.; Menut C.

    2009-01-01

    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 yie...

  11. CTFβ表达纯化及生物学性质鉴定%Expression, purification and the biological activites of C-terminal fragment CTFβ

    宋琳琳; 杨海强; 张莹; 何金生; 古应彩; 侯明旭; 刘楠楠

    2014-01-01

    目的 表达和纯化淀粉样前体蛋白(APP)的羧基末端水解片段CTFβ,并鉴定其生物学性质,为在阿尔茨海默病(AD)抗体筛选中的应用奠定基础.方法 以APP基因为模板,克隆CTFβ的基因并测序鉴定;将CTFβ基因克隆到表达载体pET-30a(+)上,构建重组表达质粒pET30a-CTFβ;转化大肠埃希菌BL21,IPTG诱导表达,利用Ni-NTA亲和层析对重组蛋白进行纯化,并用Western Blot和ELISA检测其免疫反应性,并初步探索其作为检测抗原的实验条件.结果 重组蛋白在大肠埃希菌中可溶性表达,Western Blot结果,用抗组氨酸标签抗体做为一抗,(10~25) ×103处显示与预计相对分子质量大小一致的条带;此外,在80×103以上的位置尚有较粗的蛋白条带.用抗Aβ的单抗进一步分析发现,(10~25) ×103及80×103以上的条带可以被抗Aβ(17-24)单抗4G8识别,而80×103以上的条带还可以被Aβ寡聚体单抗识别,说明表达产物还形成了高相对分子质量的聚集体,位于80×103以上.间接ELISA结果表明CTFβ用于AD抗体检测的最佳包被剂量是1 nv孔.结论 本研究成功表达和纯化了CTFβ,并鉴定了其单体和聚集体的免疫反应性,为其在AD检测中的应用提供实验依据.%Objective Proteolysis of the C-terminal fragment (CTFβ) of the amyloid precursor protein (APP) generates the Aβ peptides associated with Alzheimer' s disease (AD).The metabolism of CTFβ may play key roles in early stage of AD before Aβ generation.The aim of this study was to express,identify and purify the CTFβ,so as to provide evidence for its application in the development of AD detection system.Methods APP gene was used as the template,and the gene of CTFβ was cloned to pMD18-T vector through PCR.After sequencing,the CTFβ gene was cloned into the expression vector pET-30a(+) to construct the recombinant expression plasmid pET30a-CTFβ.The expression plasmid was transformed into Escherichia coli BL21 and the expression of CTFβ was induced by Isopropyl-β-D-thiogalactoside (IPTG).The effect of expression was confirmed by Western blottng.The recombinant protein was purified by using Ni-NTA affinity chromatography column,and the immunoreactivity of recombinant protein was detected by Western blotting and indirect ELISA.Results Western Blot results showed that recombinant protein was solubly expressed in E.coli and its molecular weight was about 10 × 103 to 25 × 103,and the size of fusion protein was consistent with prediction.In addition,the data of Western blotting showed that there were still some thick bands above the position of 80 × 103.Furthermore,the immunoblotting demonstrated that the 10× 103 to 25 × 103 of monomer of fusion protein was recognized by anti-histidine (his) tag and anti-Aβ (17-24) (4G8) antibody,while the high molecular aggregates were above 80 × 103 which were detected respectivly by anti-his,anti-Aβ antibody NU1,NU4 and A8.However,our data suggested that the bands above 80 × 103 were poorly recognized by fibril specific antibody NU6.These results demonstrated that the purified recombinant protein showed a specific immunoreactivity.Finally,indirect ELISA showed that the optimal concentration of CTFβ to coat the ELISA plate was 1 ng/well when it was used to detect Aβ antibody.Conclusion In this study,one of the aggregate-prone fragment of APP,CTFβ,was successfully expressed,purified,and identified,which would provide experimental clue to futher application in biochemical diagnosis of AD.

  12. Combiner suivi de l'activite? et partage d'expe?riences en apprentissage par projet pour les acteurs tuteurs et apprenants

    Michel, Christine

    2010-01-01

    Our work aims to study tools offered to students and tutors involved in face-to-face or blended project- based learning activities. Project-based learning is often applied in the case of complex learning (i.e. which aims at mak- ing learners acquire various linked skills or develop their behaviours). In comparison to traditional learning, this type of learning relies on co-development, collective responsibility and co-operation. Learners are the principal actors of their learning. These trainings rest on rich and complex organizations, particularly for tutors, and it is difficult to apply inno- vative educational strategies. Our aim, in a bottom-up approach, is (1) to observe, according to Knowledge Management methods, a course characterized by these three criteria. The observed course concerns project management learning. Its observation allows us (2) to highlight and to analyze the problems encountered by the actors (students, tutors, designers) and (3) to propose tools to solve or improve them. We particul...

  13. Comprehensive description of the research activites at the Edelmannshof site and preliminary results. Zusammenfassende Darstellung der Forschungsaktivitaeten am Edelmannshof und vorlaeufige Ergebnisse

    Manderscheid, R.; Hampp, R.; Jaeger, H.J.

    1991-01-01

    A possibility to study the effects of airborne pollutants apart from other site specific factors offer open top chamber experiments. At the location Edelmannshof these chambers are constructed in such a way that about 20-year-old spruce trees (Picea abies (L). Karst.) can be fumigated with either untreated or charcoal-filtered ambient air. This approach (trees in chambers including or largely free of air pollutants such as SO{sub 2}, O{sub 3} or NO{sub x}; trees outside chambers at the same location) delivers the basis for a wide variety of histological/histochemical and physiological/biochemical investigations. These are focused on needles (photosynthesis and metabolism in a very broad sense; status of antioxidatively acting systems; levels of phytohormones; nitrogen metabolism including enzyme activities, recognized as indicators of stress). These projects are complemented by vitality studies concerning the root system of the respective tree roots, (degree of mycorrhization), and by investigations into the input/output of ions and organic compounds (dry/wet deposition, throughfall, canopy leaching). (orig./MG).

  14. Étude chimique et biologique des métabolites de six plantes boliviennes à activité antiparasitaire, antibactérienne et antifongique

    Bravo, José; Sauvain, Michel; Gimenez, A.; Muñoz, V.; Lavaud, C.

    2014-01-01

    Note portant sur l’auteur Note portant sur l’auteur Note portant sur l’auteur Note portant sur l’auteur Note portant sur l’auteur Introduction La population bolivienne présente un niveau de santé qui est le plus bas d’Amérique du sud. La majorité de la population souffre de maladies parasitaires, en particulier les habitants des zones tropicales. Les diarrhées et maladies respiratoires causées par des atteintes bactériennes et fongiques affectent l’ensemble de la population bolivienne, en par...

  15. Jeter les bases d'une conception d'ensemble des liens entre activité-compétence-professionnalisation/ développement professionnel-identité

    Wittorski, Richard

    2009-01-01

    Tant dans les milieux du travail que ceux de la formation, plusieurs vocables tels compétence, professionnalisation, identité,... font l'objet d'une forte valorisation sociale qui explique en grande partie d'ailleurs la variété des définitions proposées (quand elles sont explicites) en lien avec des usages sociaux et scientifiques variés. Au fond, c'est bien souvent l'usage qui suggère voire détermine le sens attribué à ces " concepts sociaux ". Nous souhaitons ici adopter la posture du cherc...

  16. Les prud'hommes et la fabrique du droit du travail : Contribution à une sociologie de l'activité judiciaire

    Willemez, Laurent

    2012-01-01

    L'article a pour objectif de comprendre la manière dont les conseillers prud'hommes partiicpent pare leurs jugements à la fabrication du droit du travail. L'enquête sociographique permet de montrer la pluralité des modes d'investissement dans l'institution prud'homale et de mettre en valeur le rôle-clé joué par le groupe des "professionnels des prud'hommes". L'analyse de leur mode de socialisation à l'institution et de leurs pratiques de jugement montre que ceux-ci sont soumis à trois rationa...

  17. Commission for Energy regulation (CRE) - Activity report june 2008; Commission de regulation de l'energie (CRE) - Rapport d'activite juin 2008

    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.

  18. Analyse didactique de l'activité en formation professionnelle : le cas de l'apprentissage des Systèmes d'Information Géographique

    Holgado, Otilia

    2011-01-01

    Research in ergonomics and cognitive psychology point out difficulties in learning GIS (Medyckyj-Scott 1991, Nyerges 1991, Davies 1995 et, en France, Wurtz 1996). Our research is a follow-up of this work. It attempts to highlight the difficulties of learning GIS and possible ways exceed them, by understanding the mechanisms of learning GIS in the conditions offered by the CVT (continuous vocational training). We filmed and analyzed two GIS training sessions (approx. 30 hours each). Taken plac...

  19. activité argiles-polluants métalliques : simulation des barrières argileuses des sites de stockage des déchets

    Ghayaza, Mariem

    2012-01-01

    Storage of household and industrial wastes has become an important issue for the environment. Smectites, with a low permeability and a high capacity to retain pollutants, are frequently used as an engineered barrier at the bottom of landfills. The aim of this work was to simulate in the laboratory the infiltration of metallic pollutants solutions in smectites, to analyze the interaction mechanisms and to predict the hydraulic and physico-chemical behavior of these clays. Natural reference sme...

  20. 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

    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.)

  1. Influenţa factorilor de mediu la nivel comunitar asupra activităţii fizice la adolescenţi şi tineri

    Petru SANDU; Cătălin Ovidiu BABA; Rus, Diana; Maria Elena BOZDOG

    2014-01-01

    Physical activity is a complex behavior, infu-enced by personal, community and environmental factors. The aim of the current research was to review the literature approaching the infuence of environmental factors on attitudes, perceptions and levels of physical activity of adolescents and youth. A literature review was conducted, articles be-ing searched in the following databases: Medline, Scopus, Google Scholar, EbscoHost and Web of Knowledge. The following word combinations were used: envi...

  2. G8 global partnership. 2004-2005-2006 activity report; Partenariat mondial du G8. Rapport d'activite 2004-2005-2006

    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.

  3. Analyse d'activité et exposition de la vie privée sur les médias sociaux

    Abid, Younes; Imine, Abdessamad; Napoli, Amedeo; Raïssi, Chedy; Rigolot, Marc; Rusinowitch, Michael

    2016-01-01

    L'anonymat sur les réseaux sociaux ne supprime pas les risques sur la vie privée des utilisateurs découlant du recoupement des informations personnelles publiées par ceux-ci ou par leurs relations en ligne. Dans cette optique, nous avons mené une enquête par questionnaire pour mesurer la sensibilité des données personnelles publiées sur les médias sociaux et analyser les pratiques des utilisateurs. Nous montrons ainsi que plus de 76 % des internautes sondés sont vulnérables aux attaques de ré...

  4. Report of Activity, 1996 - 1997. Vol. 1. Experimental Research Division; Rapport d`activite 1996 - 1997. Tome 1. Division de Recherche Experimentale

    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

  5. 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

    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.)

  6. Activité, emploi et chômage en Espagne (1976-2007) : une perspective évolutive et comparée

    Toharia, Luis

    2011-01-01

    Cet article présente les données générales de l’évolution du marché du travail espagnol au cours des trente dernières années, qui serviront de point de départ aux analyses plus détaillées des divers aspects qui seront l’objet des articles suivants. L’expérience espagnole de la période considérée, 1976-2007, peut être interprétée comme un mouvement d’aller-retour d’une situation de plein-emploi à une autre assez positive après deux crises très fortes qui ont changé la structure de l’économie e...

  7. Impacts des activités d'extraction de gravier au Sud du Bénin et leur perception par la population locale

    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.

  8. The contract State-CEA 2001-2004 for the civil activities; Le contrat etat-Cea 2001-2004 pour les activites civile

    NONE

    2001-02-19

    The 25 january 2001, the CEA signed its pluri-annual contract with the State. Apply some to the complete document, this paper deals with the part concerning the energy. The main objective concerns the radioactive wastes management and the mastership of the nuclear activities impacts. The other part is devoted to the research programs and the technology for the industrial innovation. In this framework the CEA have to develop its program on the new following technologies: hydrogen and fuel cells, photovoltaic and storage, energy conservation. A part of the contract concerns also the fundamental research on spallation and transmutation. (A.L.B.)

  9. Approche des compétences sociales par l’analyse de l’activité : une étude chez les aides à domicile

    Leduc, Sylvain; Valléry, Gérard

    2009-01-01

    Cet article présente les principaux résultats d’une étude qui porte sur les compétences professionnelles des aides à domicile. Une présentation de la notion de compétence est réalisée par la confrontation de différentes perspectives disciplinaires. La problématique propose d’interroger la place des compétences sociales dans ce type de travail et les capacités sur lesquelles elles reposent.Les données analysées sont issues de l’association de méthodes directes et indirectes de recueil centrées...

  10. Activité antihelminthique de la poudre d'écorce de racine de Vitex thomasii De Wild (Verbenaceae) sur Haemonchus contortus chez la chèvre

    Okombe Embeya, Victor

    2011-01-01

    The present study aims to (i) identify the therapeutic uses and traditional preparation techniques of anthelmintic phytotherapy remedies by Katangese herbalists, tradipraticians, caterers and veterinary doctors; (ii) characterize the chemical groups present in the root bark of Vitex thomasii De Wild; and (iii) evaluate its effects on Haemonchus contortus in vitro and in vivo on goats raised on pasture. An ethnomedicinal study carried out in Kamina (DR Congo) showed that 44 users of medicinal ...

  11. Caractérisation moléculaire et cellulaire de l'activité adjuvante de la flagelline dans la vaccination muqueuse

    Fougeron, Delphine,

    2013-01-01

    La vaccination est un moyen de prévention très efficace contre les infections. La majorité des vaccins sont administrés par voie sous-cutanée ou intra-musculaire avec des adjuvants et stimulent ainsi des réponses immunitaires adaptatives systémiques. Les muqueuses représentent une porte d’entrée majeure pour de nombreux pathogènes ayant un impact en Santé Publique. Cependant, peu de vaccins sont délivrés par les muqueuses en raison du manque d’adjuvants adaptés à ces voies. Ainsi le développe...

  12. ANCLI's white book about the local governance of nuclear activities; Livre blanc de l'ANCLI sur la gouvernance locale des activites nucleaires

    NONE

    2005-05-15

    This white book is the result of the work carried out by the local commissions of information about nuclear activities (CLI) with the objective of making a common status and recommendations about 4 main topics: the clear definition of the structure and juridical status of CLI's and the acknowledgement of their competence at the local scale, the role and participation of CLI's, and of the national association of CLI's (ANCLI), in the decision processes at the national and international scale, the access of local CLI actors to expertise, and the consideration of ANCLI's opinion in the solutions proposed for the management of radioactive wastes. This last point is taken as an illustration of the previous 3 topics. (J.S.)

  13. Pour une géographie des bordures à l'heure globale : frontières et espaces d'activités 'informelles'

    Bennafla, Karine

    2012-01-01

    This work draws upon 20 years of research on border zones, peripheral areas, and the margins of State territory. Through a variety of fieldwork sites and case studies from central Africa to Morocco and Lebanon, I examine the multiple transformations of borders in a neoliberal era and question the place of territorial margins in a global world. Methodologically, the book develops a multiple-focus approach that is predominantly based on personal investigations and accordingly, makes ample room ...

  14. Activităţi de cercetare ştiinţifică ale colectivului de informatică aplicată

    Elena Tîrziman

    2006-01-01

    Specialiştii din domeniul Ştiinţelor Informării de la Universitatea din Bucureşti, membri ai catedrei de Informatică Aplicată au fost şi sunt implicaţi în numeroase proiecte de cercetare la nivel naţional şi internaţional în colective ale universităţii sau în colective de cercetare din alte structuri instituţionale. Din noiembrie 2006, activitatea de cercetare a Colectivului de Informatică Aplicată se derulează prin Centrul de Cercetare pentru Informaţie Digitală - DIGINFO. Sunt p...

  15. Activităţi de cercetare ştiinţifică ale colectivului de informatică aplicată

    Elena Tîrziman

    2006-01-01

    - Sistem naţional de management al resurselor digitale în ştiinţă şi tehnologie bazat pe structuri grid - SINRED - proiect în cadrul programului Cercetare de Excelenţă. Proiectul se derulează începând cu octombrie 2005.

  16. Des germylenes aux germynes : Synthèse et réactivité de ces analogues lourds des carbenes et des alcynes

    Bonnefille, E.

    2007-01-01

    Les métalla-alcynes du groupe 14-M=C-(M=Si, Ge, Sn) constituent une nouvelle fonction de la chimie organométallique ; cette fonction apparaît extrêment prometteuse tant du point de vue fondamental qu'appliqué. En effet si l'étude d'une nouvelle liaison du carbone présente un évident intérêt fondamental, ces dérivés apparaissent surtout prometteurs par leurs nombreuses applications potentielles : précurseurs de polymères organométalliques, nouveaux ligands en chimie des métaux de transition, c...

  17. Hypermédias et pédagogie : comment promouvoir l'activité de l'élève ?

    Choplin, Hugues; Galisson, Arnaud; Lemarchand, Sarah

    1998-01-01

    This paper relies on an experiment of pedagogical hypermedia destinated to engineer students in telecommunications. It aims first at bringing to the fore three reasons capable to make difficult the hypermedia user's learning activity consideredas involving affective, cognitive and social characteristics : the confusion between computer and pedagogical characteristics ; the priority of ergonomics which tends to favour easiness and to push the difficulties of learning process into thebackground...

  18. 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

    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)

  19. Exploitation des traces d’activités et des rapports des apprenants pour supporter l’auto-régulation en apprentissage par projet

    Ji, Min

    2015-01-01

    Project-based Learning (PBL) is a learner-oriented instructional method, which enables learners to carry out challenging and authentic projects by thorough investigations. PBL affords learners the opportunities to organize and plan the project, to collaborate with peers and to look for the resources and guidance to achieve the project goals. However, PBL is difficult to implement successfully because learners often lack of the self-regulation skills required to monitor, reflect, manage and as...

  20. Micellisation et activité de surface des bromures de n-alkyltriméthylammonium en milieu eau-acide orthophosphorique

    Ouni, S.; Hafiane, A.; Dhahbi, M.

    1998-05-01

    Measurements of superficial tension of n-alkyltrimethylammonium bromides in air/water-orthophosphoric acid interface have been made by “stripping method". Data were evaluated by approximation to the Von Szyszkowski equation. Thermodynamic parameters as (Γmax, F, A, B, Δ G^circ_A, Δ GM and CMC) at different concentrations of orhophosphoric acid (0 at 3 M) are calculted. The CMC values of the homologous series in relation to the chain length were determined. They showed a good correlation with the Klevens equation. A minimum of CMC and (-ΔGM) was observed for the n-octadecyltrimethylammonium bromide, which has been attributed to the cosolvant effect and the change of medium properties. L'adsorption, de bromure de n-alkyltriméthylammonium à l'interface air/eau-acide orthophosphorique, a été étudiée par la mesure de tension superficielle en fonction du nombre d'atomes de carbone du groupement alkyle et de la concentration en acide orthophosphorique (0 à 3 M). L'analyse des résultats a été effectuée à l'aide de l'équation de Von Szyszkowski. Les grandeurs et paramètres thermodynamiques (Γmax, F, A, B, Δ G^circ_A, Δ GM and CMC) ont été déterminés et discutés selon l'équilibre de forces de répulsion électrostatique entre les têtes polaires et d'attraction hydrophobe des chaînes aliphatiques. Les valeurs des CMC obéissent à l'équation de Klevens. Dans le cas du bromure de n-octadécyltriméthylammonium les valeurs de la CMC et de (-ΔGM) présentent un minimum, attribué au changement des propriétés du binaire eau-acide orthophosphorique.

  1. Tests phytochimiques et l'effet d'extrait hydroalcoolique brut de Marrubium vulgare sur l'activité de l'a-amylase

    NADJARI, Fatima

    2015-01-01

    Ce travail porte sur la recherche, in vitro, de l'effet inhibiteur d'enzyme a-amylase par différentes concentrations d'extrait brut hydoalcoolique, préparé par décoction, de la partie aérienne du Marrube blanc (Marrubium vulgare), plante utilisée dans le traitement de diabète sucré. Le travail est initié par une extraction sélective à partir de la partie aérienne du Marrubium vulgare. L'analyse phytochimique a révélé la présence d'alcaloïdes, de coumarines, de sucres rédu...

  2. Nuclear medicine department activity facing major public health challenges in France; Activite des services de medecine nucleaire face aux grands enjeux de sante publique en France

    Baulieu, J.L. [Hopital Bretonneau, CHU de Tours, Unite de Medecine Nucleaire, 37 - Tours (France); Mundler, O. [CHU la Timone, Service Central de Biophysique et Medecine Nucleaire, 13 - Marseille (France)

    2007-12-15

    A national survey was made at the 2008 la Baule Symposium 'nuclear medicine facing major public health challenges'. The aim was to evaluate the activity in the fields of clinical specialities involved in these challenges : cancerology, cardiology and neurology. The response rate was 62%. The total number of PET scans performed in France during the year 2007 was about 100,000 including 97.5% of cancer indications. The mean number of PET scans per center was 1285, with a maximum of 3500 scans. The first indications were lung cancer (27%), lymphoma (20%) and colorectal cancer (14%). The registered number of cardiac examinations was 170,387 extrapolated to a total number of about 250,000 examinations in one year. The number of registered brain SPECT was 11,215 corresponding to about 100 examinations per center in one year. The survey pointed out large variations of PET activity between centers and suggested potentialities in extending and diversifying the field of PET. Brain scintigraphy appeared as a minor sector out of proportion with the challenge of degenerative brain pathology. Performing again these evaluations in the next years should allow to better describe the capabilities of nuclear medicine to face the major challenges and the evolution of public health.

  3. Gouvernance territoriale, publicisation de l’espace et patrimonialisation de l’activité viticole en zone périurbaine: exemple du pays de Lunel

    Clément, Camille; Jarrige, Françoise; Laurens, Lucette; Soulard, Christophe-Toussaint

    2009-01-01

    Cet article interroge les dynamiques des espaces périurbains en se focalisant sur le rôle, la place et la gestion politique de l’agriculture dans ces espaces mouvants et complexes. L’émergence d’une gouvernance territoriale réinventée remet au premier plan l’idée d’une gestion collective d’espaces privées. N’assiste-t-on pas alors à une publicisation des espaces agricoles périurbains ? En prenant un exemple dans le périurbain de Montpellier et de Nîmes, la communauté de communes de Lunel, cet...

  4. Former les enseignants de français par l’activité de création numérique dialoguée

    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.

  5. L'impact économique d'une activité culturelle comme motif au soutien public : définition et conditions de validité

    Yann Nicolas

    2010-01-01

    Many cultural players regularly ask for results from studies of the economic impact of a cultural facility or event for a given area. They do it in particular in order to justify public support. However, the definition and validity conditions of the “economic-impact” rationale are little-known among these players. This article offers a reminder of these definition and conditions by using tools from economic analysis and findings from theoretical and empirical research. Breaking down the econo...

  6. Abondance et distribution des grands singes et des activités humaines dans le Parc National de Campo Ma'an, Sud Cameroun

    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.

  7. Expression et évolution des lipases de Candida rugosa et Yarrowia lipolytica pour modifier leurs activités et spécificités

    PIAMTONGKAM, Rungtiwa

    2010-01-01

    Les lipases, protéines ubiquitaires, sont les enzymes les plus étudiées et les plus utilisées dans l’industrie. Elles catalysent un très grand nombre de réactions, d’hydrolyse et de synthèse, conduisant à une grande diversité de molécules, acides, esters, amides…. Les domaines d’applications sont nombreux : les bio-énergies, les arômes, bio-lubrifiants, bio-plastifiants, émulsifiants, produits phytosanitaires et détergents, cosmétiques, synthons pour la chimie fine, produits pharmaceutiques… ...

  8. Relation entre la faune de quelques rivières du nord-ouest de l'Angleterre et les activités humaines

    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.

  9. Activités biologiques du Seigle et du Sorgho chez le rat « Wistar » rendu diabétique par la Streptozotocine

    MAMI, épouse SOUALEM Zoubida

    2015-01-01

    Le changement des habitudes alimentaires au cours de ces dernières années a abouti à l’apparition des maladies dites de civilisations, entre autre le diabète sucré caractérisé par une hyperglycémie courante causée par un déficit de sécrétion de l’insuline ou résistance cellulaire à l’insuline. Des approches diéto-thérapeutiques privilégient la consommation des produits céréaliers sous la forme la plus complète possible. Le Sorgho (Sorghum bicolor L.), espèce très connue comme source important...

  10. Suivi des activités de prévention du VIH/sida dans le canton de Genève en 2010.

    Gumy Cédric; Lociciro Stéphanie; Huissoud Thérèse; Dubois-Arber Françoise

    2011-01-01

    [Table des matières] 1. Objectifs d'évaluation pour 2010. - 2. Données de la surveillance biologique et comportementale: Nouvelles déclarations de tests VIH positifs à Genève en 2010 - Comportements face au VIH/sida. 3. Suivi des associations: - Groupe Sida Genève (GsG) - Dialogai - L'association Première ligne - Association genevoise des Personnes Vivant Avec le VIH/sida (PVA) - Association Solidarité Femmes Africaines de Genève (ASFAG). 4. Annexes. 5. Liste des figures et des tableaux....

  11. Suivi des activités de prévention du VIH/sida dans le canton de Genève en 2009

    Huissoud Thérèse; Lociciro Stéphanie; Gumy Cédric; Dubois-Arber Françoise

    2010-01-01

    [Table des matières] 1. Objectifs d'évaluation pour 2009. - 2. Données de la surveillance biologique et comportementale: Nouvelles déclarations de tests VIH positifs à Genève - Comportements face au VIH/sida - Groupe Sida Genève (GsG) - Dialogai - L'association Première ligne - Association genevoise des Personnes Vivant Avec le VIH/sida (PVA) - Association Solidarité Femmes Africaines de Genève (ASFAG). 3. Conclusions et recommandations. 4. Annexes.

  12. Direction in charge of the management of wastes. 1998 activity report; Direction chargee de la gestion des dechets. Rapport d'activite 1998

    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.)

  13. The exposures to natural radioactivity as a result of human activities; Les expositions a la radioactivite naturelle du fait des activites humaines

    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.)

  14. Synthèse, réactivité électrochimique et structure électronique de 1-R-métallatranes (M=Si,Sn)

    Wang, Yu

    2012-01-01

    Metallatranes (M = Si, Ge, Sn) have been studied intensively during 50 years and have many applications in various domains namely physics, biology, medicine and so on. However their electrochemical properties were poorly studied up to date. In the present work, new metallatranes have been synthesized and characterized using different approaches and techniques (organic synthesis, cyclic voltammetry, preparative electrolysis, EPR, spectroelectrochemistry, cyclic voltammetry coupled with EPR, NM...

  15. The Aube plant. 2003 status; Centre de l'Aube. Bilan 2003. Centre de stockage de dechets de faible et moyenne activite

    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. Annual report 2000. Department of wastes disposal and storage; Rapport annuel d'activite 2000. Departement d'Entreposage et de Stockage des Dechets

    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.)

  17. Le rôle des marchés locaux du travail dans la concentration spatiale des activités économiques

    Pierre-Philippe Combes; Gilles Duranton; Laurent Gobillon

    2008-01-01

    This study first summarises the forces that affect positively and negatively the spatial concentration of economic activity, and the bell curve that links general transaction costs to regional disparities. The specific role played by local labour markets is then detailed. While spatial concentration enables a larger division of labour, it also provides mechanisms of mutual insurance through which workers and firms gain through agglomerating. Concentration also improves the labour market match...

  18. L'évaluation de l'activité Internet de l'entreprise : une application au secteur du tourisme français

    Rival, Yann

    2005-01-01

    This research addresses the question of assessing the Internet-related activity of the firm by relying on the Strategic Alignment Model and the Resource based view. Following a contingent approach, the conceptual framework sheds light on the coherence between Internet use, business, organization, technologies and competences. The research model is applied to the main companies of the French tourism sector. The selected methodology combines a qualitative exploratory approach based on interview...

  19. Annual report 1999. Department of wastes disposal and storage; Rapport annuel d'activite 1999. Departement d'Entreposage et de Stockage des Dechets

    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.)

  20. Hydrogen activities in the European Union work-programme; Activites liees a l'hydrogene dans le programme de travail de l'Union Europeenne

    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)

  1. L’éducation pour la santé : une activité intégrée aux programmes du projet Equal-Reset.

    Haas, Claude; Studer, L.; Baumann, Michèle

    2008-01-01

    Les déterminants majeurs de la non-réinsertion et de la récidive sont la mauvaise santé mentale, une faible estime de soi, mais surtout le manque d’attitudes positives envers le travail telles que la motivation à avoir un emploi, la responsabilité à l’égard des résultats professionnels. Dans le cadre du projet Equal-reset (Réinsertion Économique et Sociale par l’Éducation et le Travail des détenus), nous avons tenté de montrer qu’il existait un lien entre santé mentale et valeur accordée ...

  2. Les technologies de l'information et de la communication en didactique de l'éducation technologique Analyse des instruments de l'activité enseignante

    Brandt-Pomares, Pascale

    2013-01-01

    The role of digital tools in teaching-learning situations is analyzed from the point of view of knowledge involved in technology education. Their impact in the process of transmission and appropriation is apprehended through the analysis of the activity of teachers. Le rôle des outils numériques dans les situations d'enseignement-apprentissage est analysé du point de vue des savoirs en jeu en éducation technologique. Leur impact dans les processus de transmission et appropriation est appré...

  3. Déterminants de la participation aux activités non-agricoles et du revenu des ménages ruraux : le cas de la Chine

    Zhu, Nong

    2002-01-01

    Using rural household survey data from China, this paper examines the determinants of farmers’ non-farm activity participation decision and their income earning. The results show that education level contributes significantly to farmers’ factors non-farm activity participation and their outcomes. The land scarcity constitutes an important motivation to turn to non-farm sectors; nevertheless, the households relatively abundant in land do not necessarily specialize in agricultural production. T...

  4. La théorie de l'enrichissement cognitif à travers la stimulation physique : activité physique traditionnelle versus exergames

    Maillot, Pauline; Perrot, Alexandra

    2012-01-01

    L'hypothèse de l'enrichissement cognitif suggère que l'ensemble des comportements et conduites adoptés par l'individu au cours de sa vie aurait un impact positif sur le niveau d'efficacité cognitive en avançant en âge. Cet article vise à argumenter ce concept en présentant des travaux réalisés dans le domaine de la stimulation physique. En effet, plusieurs études interventionnistes ont fait état d'améliorations cognitives chez des personnes âgées suite à une sollicitation physique, et ce, soi...

  5. Organizarea şi finanţarea activităţii de cercetare într-o companie transnaţională. Studiu de caz

    Henriette Szilágyi; Mircea-Iosif Rus

    2012-01-01

    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 economi...

  6. Organizarea şi finanţarea activităţii de cercetare într-o companie transnaţională. Studiu de caz

    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.

  7. Uzundere Vadisi Tarimsal Faaliyetlerinin Peyzaj Çesitliligine Etkileri/EtTects on Landscape Diversity of Agricultural Activites Of Uzundere District and Its Surroundings

    Karahan, Faris; Orhan, Tuba

    2012-01-01

    Özet: Uzundere ilçesi ve vadisi cografi yapi ve rakiminin düsük olmasi nedeniyle Erzurum'agöre ilik bir iklime sahip ilçenin güney ve batisinda karasaL, kuzey ve dogusundaDogu Karadeniz iklimi hakimdir. Vadi içlerindeki mikroklima iklim özelligiyle ilçedenarenciye üretimi disinda tüm sebze ve meyve üretimi yapilmaktadir. Ilçe alan kullanimlarinin%39,7'si çayir ve meraya, %12'si orman ve fundaliga ve % 9,8'i...

  8. Determination and comparison of thorium-inhalation rates by measuring the activites excreted with faeces and urine as well as the concentration in air

    Over a five days period faeces and urine have been taken quantitatively from TIG-welders (test persons) and two mechanics in a metal working company. Air samples were taken daily from the breathing space of each person by personal air sampling methods. Samples were treated radiochemically and evaluated by means of α-spetroscopy using semiconductor-detectors. Rates of inhalation have been determined for Th-232, Th-230 and Th-228 using mean concentrations of the nuclides measured in the breathing air and from mean excretion rates for faeces and urine. The results are fairly consistent. Some inhalation rates of one test person were relatively high. They can easily be interpreted by natural intake (ingestion). (orig.)

  9. Commission for Energy regulation (CRE) - Activity report June 2005; Commission de regulation de l'energie (CRE) - Rapport d'activite juin 2005

    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)

  10. French Committee of Butane and Propane. 2005 activity report; Comite francais du butane et du propane. Rapport d'activite 2005

    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.)

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

    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. Etude de l'activité électrique des systèmes orageux à l'aide du modèle Méso-NH

    Barthe, Christelle

    2005-01-01

    The electrical scheme of Méso-NH consists of three parts: the electric charge evolution, the electric field computation and the lightning flashes. The non-inductive process is the main mechanism to electrify the cloud. The inductive mechanism becomes efficient when there is an intense electric field in the cloud. When the electric field in the cloud is higher than a threshold value, a lightning flash is triggered and propagates following a bidirectional leader. Branches are generated with a s...

  13. {sup 124}Sb - Activity measurement and determination of photon emission intensities; {sup 124}Sb - Mesure de l'activite et determination des intensites photoniques

    Be, M.M.; Chauvenet, B.

    2009-07-15

    The international traceability of antimony 124, in term of activity, is very limited. The results of {sup 124}Sb activity measurements sent to the SIR (BIPM - International System of Reference, BIPM.RI(II)-K1.Sb-124.) are scarce. Up to now, only three laboratories have contributed. Two of them carried out measurements using the 4pibeta-gamma coincidence counting technique and the third one using the 4pigamma method with a well-type crystal detector. The first two results are in agreement but the last one differs significantly from them, by 2 %. The decay scheme consistency cannot be excluded when trying to explain those discrepancies. In other respects, this nuclide emits high-energy gamma rays, and then could be selected as a valuable standard radionuclide for the calibration of gamma-ray detectors in that energy range, given well known photon intensities. Those considerations led to the proposal of an international exercise and to the realisation of this Euromet project, registered as project no. 907, coordinated by CEA-List-LNE/LNHB. The first part of this exercise was dedicated to activity measurements and to their comparison. For this purpose, participants were asked to make use of all the direct measurement techniques available in their laboratory in order to confirm or not the existence of possible biases specific to some measuring methods. In addition, this exercise offered the opportunity of improving the uncertainties of the gamma-ray intensities. Then, participants were asked, in the second part of the exercise, to carry out X-ray and gamma-ray intensity measurements. These results have been compared to previous published values and new decay scheme data are proposed. Eight international laboratories participated in this exercise. (authors)

  14. Synthèse et réactivité de complexes à ligand iminophosphorane : des métaux de transition aux actinides

    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...

  15. EVALUATION DE L’EFFET DU LIEU DE RECOLTE DES ALGUES MARINES DES COTES ATLANTIQUES MAROCAINES SUR L’ACTIVITE ANTIBACTERIENNE ET ANTI-INFLAMMATOIRE

    Y. FARID

    2012-01-01

    Full Text Available To evaluate the effect of the place of algae’s harvest on the antibacterial activity of both strains Staphylococcus aureus (ATCC 6538 and Bacillus cereus (CIP 783 and anti-inflammatory anti-phospholipase A 2, 17 species of algae were collected from two sites of the Moroccan Atlantic coast: Oualidia beach and Sidi Bouzid beach. 59% of algae harvested from Oualidia showed activity vis-à-vis S. aureus ATCC 6538, against only 41% of algae collected from Sidi Bouzid. As for strain CIP 783de B. cereus. Extracts musciformis Hypnea, Gelidium sesquipedale and Dictyota dichotoma showed activity vis-à-vis S. aureus in extracts of algae harvested from Oualidia but no activity was observed in these extracts collected from Sidi Bouzid. Moreover, the results of the anti-inflammatory activity of marine algae appear to be related to the harvest site. Indeed, Asparagopsis armata harvested from Oualidia showed inhibitory activity of phospholipase A2 to 100%, but this activity is very low (10% for this species collected from Sidi Bouzid. The three extracts Bifurcata bifurcate, Cystoseira humilis and Cystoseira tamariscifolia, picked up from Oualidia, showed inhibitory activity of phospholipase A2 greater than that collected from Sidi Bouzid. Analysis of variance(ANOVA of the anti-inflammatory and antibacterial activity showed that there is a significant difference in activity between the two stations of harvest.

  16. Memoria implicita e alfabetizzazione visiva nel contesto museale

    Annalisa Banzi; Raffaella Folgieri

    2014-01-01

    Storici dell’arte ed esperti del settore museale lamentano la difficoltà del pubblico a “leggere” le opere esposte in un museo di arti visive. Guardare e cogliere gli aspetti relativi alla grammatica visiva di un oggetto sono abilità che si apprendono, in generale non sono innate o spontanee. I fruitori potrebbero beneficiare di un metodo che sviluppa e potenzia le loro capacità visive. Lo scopo di questo articolo è presentare e valutare se un modello basato sul priming percettivo, una forma ...

  17. 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

    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.)

  18. 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

    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.)

  19. 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

    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.)

  20. 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

    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.)

  1. Cell cycle break and apoptosis induction for the HPV-18 positive human head and neck carcinomas lines, after exposure to 5-fluorouracils and ionizing radiations:NF-kB implication in the radiosensitivity and spontaneous apoptosis; Arrets du cycle cellulaire et induction d'apoptose pour les lignees de carcinome humain de la tete et du cou HPV-18 positives, apres exposition au 5-fluorouracile et aux radiations ionisantes: implication de NF-kB dans la radiosensibilite et l'apoptose spontanee

    Didelot, C

    2002-04-15

    The P-53 protein holds an important contribution in the control of the cell cycle as well as the apoptosis control. But in numerous cancers the P-53 protein functionality is blocked by mutations or by its gene obliteration. The distribution of cells in the cell cycle as well as the apoptosis induction have been studied after exposure to 5-Fluorouracils (5-F.U.) or ionizing radiations. The two types of stress can induce dependent P-53 apoptosis after 5-F.U. exposure and independent P-53 apoptosis after ionizing radiation exposure. The P-53 protein is not the only one to have an important part in the cell cycle and apoptosis control, the transcription factor is important as well as the cells sensitivity to a stress such ionizing radiation. This could open new approaches of increasing the biological effects of ionizing radiations. (N.C.)

  2. Has the civil society a real place in the governance of the nuclear and chemical activities?; La societe civile a-t-elle 'vraiment' une place dans la gouvernance des activites nucleaires et chimiques?

    NONE

    2005-07-01

    This colloquium, organized in three sessions discusses the following topics: the historical aspects of the transparency in the nuclear domain, the AZF accident, the nuclear wastes specific case, the access of the society to the knowledge, the democratic participation to the management of the risk activities and the conditions of this sustainable participation, the international situation and the public trust. (A.L.B.)

  3. Développement du secteur financier et financement de l’activité agricole dans un contexte de crise alimentaire : quelle place pour la micro-finance ?

    Kendo, Sandra

    2012-01-01

    Dans un contexte de crise alimentaire grandissante et où plus d’un milliard de personnes souffrent de la faim, l’étude de l’optimisation du secteur de l’agriculture, au travers du renforcement des moyens de financement en vue de desservir un grand nombre de pauvres, révèle toute son importance. Il s’agit ainsi d’analyser la manière dont la microfinance peut contribuer favorablement à améliorer le financement de l’agriculture en vue de favoriser une amélioration des conditions de vie des popul...

  4. 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

    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.

  5. Les victimes silencieuses des crises humanitaires et l’(insécurité de leurs activités économiques : Etude de cas parmi les migrants de deux villes tchadiennes

    Syntyche Nakar Djindil

    2009-04-01

    Full Text Available Lorsqu’une catastrophe humanitaire fait la une des médias, la communauté internationale se mobilise à réduire les conséquences les plus sérieuses. La population du Tchad connaît cependant des crises endémiques qui ne sont liées à aucun élément déclencheur particulier# ; elle ne reçoit pas l’assistance internationale nécessaire pour faire face à ces problèmes. La présente étude concerne 111 ménages de migrants de la région du centre du Tchad, qui ont, à cause de la guerre et de la sécheresse, tout perdu, et qui vivent désormais dans de N’Djamena et de Mongo#; ces familles sont confrontées à la précarité et à d’autres éléments qui menacent leurs moyens de subsistance. Des méthodes qualitatives et quantitatives ont été combinées dans l’étude pour révéler l’histoire intrigante de leur vie quotidienne au milieu de crises complexes et endémiques. Des données anthropométriques et sanitaires ont été utilisées pour déterminer l’état nutritionnel des mères et de leurs enfants de moins de cinq ans. Des narrations de vie, des entretiens en profondeur et des observations participatives ont permis aux chercheurs de déterminer les stratégies de négociation que ces familles adoptent pour accéder à leur nourriture et à leurs abris, leur expérience de l’insécurité alimentaire et de la vulnérabilité sanitaire, ainsi que les conséquences que ces éléments ont sur leur vie quotidienne. Les résultats indiquent que 62% des ménages sont dirigés par des femmes, qu’il existe de forts taux de malnutrition aiguë (40-50% et chronique (35-40% et que 46% des mères sont sous-alimentées et anémiées. Les taux de mortalité infantile se sont avérés également élevés#: de 30% à 42%. 97% des enfants n’ont pas été complètement vaccinés, voire pas vaccinés du tout, dans certains cas. Aucun des ménages n’a accès à l’eau potable et aux services sociaux de base. La corruption endémique et l’abus manifesté par les autorités tchadiennes ont été identi$és comme sources d’insécurité quotidienne. Ces migrants considèrent cette situation misérable comme normale.

  6. Help guides for post-accident consequence management: farm activities and exiting the emergency phase; Les guides d'aide a la gestion des consequences post-accidentelles: activites agricoles et sortie de la phase d'urgence

    Cessac, B.; Reales, N. [Institut de Radioprotection et de Surete Nucleaire, BP 17 - 92262 Fontenay-aux-Roses (France); Mehl-Auget, I. [Autorite de Surete Nucleaire - 6, place du Colonel Bourgoin - 75012 Paris (France)

    2010-07-01

    After having recalled the main actions foreseen in the PPIs (plans particuliers d'intervention, intervention specific plans) in case of radionuclide release in the environment after a nuclear accident, i.e. sheltering and ingestion of steady iodine, and also indicated the different phases of consequence management (preparation, emergency and post-accident phases), this report describes and comments the contents of two guides published by the IRSN (the French Radioprotection and Nuclear Safety Institute) and dealing with the management of post-accident consequences. The first one is a guide to aid to decision-making for the management of the agricultural sector in case of nuclear accident, and the second one is a guide for the preparation of the end of the emergency phase in which actions to be performed during the first week after the end of accidental releases are described

  7. Activités antimicrobiennes et insecticides de Thymus capitatus, Daucus crinitus et Tetraclinis articulata sur la mineuse Tuta absoluta (Meyrick) et la microflore pathogène de la tomate Lycopersicum esculentum

    BEN YAHIA, Née BOUAYAD ALAM SAMIRA

    2015-01-01

    Tuta (Meyrick)absoluta L3 L2 %80 . T. articulata T. capitatus L1 %100 5 % 100 T. capitatus 2 41 T. articulata 2μG/ml T. articulata D. crinitus Trichoderma sp., T. capitatus sp2 A. solani F.oxysporum Pinicillium sp1 F.oxysporum Abstract This study aims to propose alternative solutions based on the use of natural products "biopesticides" to fight against the tomato leafminer, Tuta absoluta (Meyrick) and other pathogens considered as serious threat for tomato pro...

  8. Etude ethno-pharmacologique et évaluation de l’activité antimicrobienne et antioxydante de quelques plantes médicinales de la région de Tizi Ouzou - Algérie

    CHAOUCHE Thanina, AFIF

    2015-01-01

    ان مقاومة الجراثيم ذات الطبيعة البكتيرية الفيروسية او الفطرية هي ظاهرة تؤثر بشكل محسوس على نظم الصحة العمومية. هذا العمل هو خطوة تهدف لدراسة النشاط ضد الجرثومي و المضاد للاكسدة للانواع النباتية المتحصل عليها من منطقة تيزي وزو. تم عزل 501 نسائل بكتيرية و 4 خمائر لانتانات تنقسية لدى المرضى على مستوى مصلحتي الانعاش و الامراض المعدية بالمستشفى الجامعي لتيزي وزو. الجراثيم المعزولة هي : Acinetobacter baumannii, Burkholderia cepacia, Corynebacterium diphtheriae, Enterobacter cloacae, ...

  9. L’impact des activités non agricoles sur la pauvreté et l’inégalité rurales dans les groupements Bugorhe et Irhambi-Katana (Territoire de Kabare, Province du Sud-Kivu)

    Furaha Mirindi, Germaine; Namegabe Mastaki, Jean Luc; Lebailly, Philippe

    2016-01-01

    Using a survey on the socio-economic situation of households in 2012, the study analyses the effect of non farm income on inequality and poverty alleviation in a rural area of the Democratic Republic of Congo, by comparing a group of households practicing agriculture only and another group which combines agriculture and nonfarm activities. The approach used considers non farm income as an exogenous transfer which completes the whole household income, and analyses the contrib...

  10. Agrice 2003. Activity report - New industrial resources, from agriculture to bio-products; Agrice 2003. Rapport d'activite - Nouvelles ressources industrielles, de l'agriculture aux bioproduits

    NONE

    2003-07-01

    Renewable raw materials derived from agricultural crops are used to manufacture bio-products in energy, chemicals and materials industries. Renewable feedstocks address a double need. On the one hand, they offer alternatives to fossil resources, and on the other hand, they are a response to today's environmental challenges: mitigation of the greenhouse affect, reduction of air, soil and water pollution, innocuousness and biodegradability of products. A new chemistry must be created. Large-scale and ongoing research work must be committed to this goal. The research effort implies active coordination of all the various actors involved - multidisciplinary research teams, agro-industrial enterprises, user industries (petrochemicals, chemicals, materials), and specific agricultural branches. With these ends in mind the scientific interest group AGRICE - Agriculture for Chemicals and Energy - was established by public authorities and eight partners in France in 1994. The AGRICE consortium was renewed for six years in 2001, with a broader membership base. AGRICE now includes the following partners: - the research arms of the Commissariat a l'Energie Atomique (CEA), the Institut Francais du Petrole (IFP), and the Institut National de Recherche Agronomique (INRA), - professional organisations representing producers of oilseeds (ONIDOL), grains (AGPB) and beets (CGB), - corporate members ATOFINA, AUTOBAR PACKAGING France, BAYER CROP SCIENCE, CERESTAR France, LIMAGRAIN Agro-Industrie, RHODIA, TOTAL FINA ELF, - the French ministries of Agriculture, Industry, Research, and the Environment, - the French Agency for the Environment and Energy Management (ADEME), - the French Agency for Innovation (ANVAR). ADEME is responsible for managing AGRICE. The consortium is involved in major international undertakings, notably through the European Renewable Resources and Materials Association (ERRMA). This report presents: 1 - the AGRICE profile, scope of activity, structure and Operations, and sectors of activity (Liquid biofuels for vehicles (Ester/Oils, Ethanol/Ether) and Non-vehicle biofuels (Energy crops, Processes), Biomolecules (Lubricants, Surfactants, Solvents, Other biomolecules), Biomaterials (Biopolymers, Agro-materials)); 2 - the 2003 year: Financial report and applications; Noteworthy achievements; Events in 2003; working groups; Europe-Wide activities; Joint undertakings; 3 - appendixes: Partners and members of the Group Council, The ADEME/AGRICE team, Financial statement 1994-2003, Topical breakdown of subsidies allocated by AGRICE (1994-2003), Projects initiated and completed in 2003

  11. Déformation et activité intrusive des volcans boucliers - Du terrain à la modélisation numérique (Piton des Neiges, La Réunion)

    Chaput, Marie

    2013-01-01

    Les volcans boucliers basaltiques se déforment sous leur propre poids, tout particulièrement en période d'éruption. A Hawaii, cette déformation co-éruptive est en majeure partie expliquée par un plan de décollement à la base des édifices, dont le glissement serait associé à la force de poussée des intrusions dans les " rift zones " (i.e. concentration de dykes subverticaux dans les zones de faiblesse de l'édifice). Cependant, cette explication n'est pas valable pour beaucoup d'autres volcans ...

  12. Isolement et caractérisation des saponosides de trois plantes de la famille des araliaceae et dracaenaceae et évaluation de leurs activités cytotoxiques sur cellules tumorales

    Kougan Nkwokap, Guy Beddos

    2010-01-01

    L'intérêt des substances d'origine naturelle, potentiellement anti-tumorales nous a amené à nous intéresser aux saponines triterpéniques et stéroïdiques de plantes issues de la biodiversité africaine de la famille des Araliaceae et des Dracaenaceae. En effet, des études antérieures menées sur quelques plantes de ces deux familles ont conduit à l'obtention de molécules complexes et originales possédant d'excellentes propriétés cytotoxiques, immuno-modulatrices, anti-inflammatoires. Au vu de ce...

  13. L'activité argilière : une clé d'accès à la géomorphologie dans la France de l'Ouest

    Comentale, Bruno

    2011-01-01

    Clay handcraft: an introducing key to geomorphology in Western France. In a low-energy relief country like Western France, material handcraft is an introducing key to local geomorphic pattern for tourists as well as for inhabitants. This may be a material heritage like old farms, mills, rural ovens, whose building is made from the Armorican massif basement granite and schist, or limestone in the nearby sedimentary basins. In other parts, local clays were used to make pottery, tiles and bricks...

  14. Exceptional recurrence of flank destabilizations in the recent activity of the Colima volcanic complex, Mexico; Recurrence exceptionnelle de destabilisations de flanc dans l`activite recente du complexe volcanique du Colima, Mexique

    Komorowski, J.C. [IPGP, (Mexico); Siebe, C. [Institut de Geofisica, UNAM (Mexico); Rodriguez, S. [Institut de Geologia, UNAM (Mexico); Cortes, A.; Navarro, C.; Gavilanes, J.C.

    1996-12-31

    This short paper reports on new {sup 14}C datings of debris flow units from the Nevado de Colima and Fuego de Colima volcanoes in Mexico. These new datings in connection with a detailed stratigraphic study in the deep canyons around the volcanoes has revealed an exceptional recurrence of flank destabilizations of the Fuego de Colima during the last 45000 years. The cumulated volume of debris in the whole Colima massif is estimated to 60-100 km{sup 3}. The correlation between Landsat satellite pictures and the distribution and age of the debris flows shows that both volcanoes are made of several post-destabilization remaining structures, and that both volcanoes were active and simultaneously collapsed 18500 years ago. The numerous fluvial-lacustrine sequences intercalated between the successive flows indicate that the debris flow were partially sedimented under water and could have led to catastrophic tsunamis towards the Pacific coast. Implications of this work are important because a population of more than 200000 inhabitants is living in a zone covered by several debris flows. (J.S.).

  15. Regard sur les groupes d'equite en matiere d'emploi chez ceux ayant recemment obtenu un diplome d'etudes postsecondaires : minorites visibles, peuples autochtones et personnes limitees dans leurs activites quotidiennes

    Caron, Nathalie; Wannell, Ted

    1994-01-01

    Les reglements sur l'equite en matiere d'emploi prennent de plus en plus d'importance sur les marches du travail au Canada. Cependant, outre des donnees globales sur la disponibilite, il existe peu de documents sur les experiences des groupes designes sur ces marches. Le present rapport, qui se fonde sur l'Enquete nationale aupres des diplomes de 1992, etablit le profil des premieres experiences sur le marche du travail des minorites visibles, des autochtones et des personnes atteintes d'une ...

  16. 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

    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)

  17. AREVA Technical Days (ATD) session 3: operations of the reactors and services division, technical and economic aspects; AREVA Technical Days (ATD) session 3: les activites du pole reacteurs et services, aspects techniques et economiques

    NONE

    2003-07-01

    These technical days organized by the Areva Group aims to explain the group activities in a technological and economic point of view, to provide an outlook of worldwide energy trends and challenges and to present each of their businesses in a synthetic manner. This third session deals with the reactors technologies basics, the EPR and SWR 1000 issues and outlook, the nuclear systems of the future, the business opportunities and business models. (A.L.B.)

  18. L’invasion des véhicules d’occasion en transit par le port d’Abidjan : le dynamisme ambivalent d’une activité en plein essor

    Kablan, N’Guessan Hassy Joseph

    2013-01-01

    Avec plus de 65 % des parts de marché de vente des véhicules en 2008, la filière des voitures d’occasion en Côte-d’Ivoire est devenue un secteur dynamique depuis la libéralisation à l’importation des voitures de tourisme usagées, le 3 janvier 1996. En renforçant la compétitivité du port d’Abidjan, la mesure a considérablement réduit les longues files de voitures en provenance notamment de Cotonou et de Lomé, véritables plaques tournantes de ce commerce en Afrique. Occasionnelle et artisanale ...

  19. Diversité et activité des communautés microbiennes dans des sédiments marins associés aux émissions de fluides froids

    Lazar, Cassandre Sara

    2010-01-01

    La majorité du méthane, gaz à effet de serre, est stocké dans les sédiments marins. Or seule une faible proportion de ce méthane atteint l'hydrosphère et l'atmosphère, parce qu'il est consommé par un biofiltre efficace constitué d'Archaea anaérobies qui oxydent le méthane (ANME). Ce méthane a une origine principalement biogénique dans les sédiments marins, car il est synthétisé par des Archaea méthanogènes dans des sources profondes, et migre dans des zones spécifiques d'émissions de fluides ...

  20. Gestion des ressources hydriques et activité minière au Minas Gerais (Brésil) des premières découvertes d'or alluvionnaire à 1736

    Carles, Marjolaine

    2013-01-01

    Using an historiography about the concept of water sharing, this paper proposes and analyzes a legal classification of the waters in Minas Gerais (Brazil) during the eighteenth century. Within the mining context, it mainly deals with the legal statutes of waters which were used by minors, that being: “common waters” and “auriferous waters”. The end of the seventeenth century until 1736 marks the period between the first discoveries of alluvial gold and the ultimate reform of auriferous waters...

  1. Etude phytochimique, activités antimicrobiennes et antioxydantes de Saccocalyx satureioïdes, Salvia verbenaca et Teucriumpolium de la région Ouest d'Algérie

    BELMEKKI, Nacéra née TEBICHEK

    2014-01-01

    Résumé L'étude des espèces Saccocalyx satureioïdes, Teucrium polium et Salvia verbenaca appartenant à la famille des Lamiaceae, a porté sur un screening phytochimique visant à caractériser les différentes familles de composés chimiques contenues dans leur partie aérienne, puis l'extraction sélective des classes dont les tests sont positifs. L'analyse des huiles essentielles de Saccocalyx saiureioïdes, Teucrium polium par chromatographie gazeuse couplée à la spectrométrie de ...

  2. Isoformes du domaine N-terminal du suppresseur de tumeur p53 : sur l'activité transcriptionnelle de p53 et expression dans les mélanomes cutanés

    Hafsi, Hind

    2012-01-01

    The p53 tumour suppressor protein has a highly complex pattern of regulation at transcriptional and posttranslationallevels. The discovery of p53 isoforms has added another layer of complexity to the mechanisms thatregulate p53 functions. Indeed, p53 is expressed as 12 isoforms that differ in their N- and C-terminus due toalternative splicing, promoter or codon initiation usage. So far, there is limited understanding of the patterns ofexpression and of the functions of each of these isoforms....

  3. L'activité des femmes immigrées du Portugal à l'arrivée en France, reflet d'une diversité de stratégies familiales et individuelles?

    Condon, S.

    2000-01-01

    Condon Stéphanie.- Female migration from Portugal and activity on arrival in France: a variety of personal and family strategies Portuguese immigration to France has involved both men and women since the 1960s. Whether married or single, migrant women have responded to the call for labour in industry and the service sector. Analysis of data from the Mobilité Géographique et Insertion Sociale survey (INED-INSEE, 1992) revealed that a considerable proportion of women born in Portugal, migrating...

  4. Agglomération humide de poudres à réactivité de surface - Approche mécanistique de la morphogenèse de structures alimentaires agglomérées

    Barkouti, Amal

    2012-01-01

    L'agglomération humide est une étape cruciale dans la technologie de mise en forme des poudres de par son fort impact sur la qualité finale des produits élaborés. Malgré son intérêt lors de l'élaboration de nombreux produits (aliment, pharmaceutique, génie civil,...), ainsi que les différents modes technologiques (malaxeurs horizontaux, verticaux, à faible ou fort de taux de cisaillement, lit fluidisé, ...), elle reste insuffisamment maîtrisée de par la difficulté à proposer des diagrammes de...

  5. Etude dans l'ionosphère de la densité électronique et de la turbulence électrostatique en fonction de l'activité séismique

    Li, Feng

    2007-01-01

    The subject of this thesis is related with the DEMETER project, and much particularly to the processing of its data. DEMETER is the first scientist micro-satellite which was launched by CNES in June 2004 with a payload under the responsibility of LPCE. DEMETER measures the electric field and the magnetic field in the ionosphere in various frequency bands, as well as the characteristic plasma parameters at the satellite altitude. The main objective of DEMETER is to study the ionospheric pertur...

  6. Etude sur la réactivité du THP [tris[hydroxyméthyl]phosphine] et Développement de composés potentiellement efficaces en tant que retardants de flamme

    Schenk, Christelle; Neier, Reinhard

    2015-01-01

    Depuis les années 70, les matériaux traditionnels, tels que le bois et les métaux, ont été progressivement remplacés par des matériaux polymères. Malgré tous les avantages que possèdent ces plastiques, ces derniers peuvent être particulièrement inflammables et peuvent dégager des composés hautement toxiques sous l’effet de la combustion. Ainsi, des additifs appelés « retardants de flamme » ont été développés pour améliorer la sécurité de notre quotidien face aux incendies. Un retardant de fla...

  7. activité des nitriles sur la surface Si(001)-2x1, étudiée par spectroscopies de photoémission, d'absorption X et microscopie tunnel

    RANGAN, Sylvie

    2004-01-01

    Les spectroscopies de photoémission, d'absorption X –assistées par des calculs DFT d'états de coeur excités – et la microscopie tunnel, ont permis de déterminer avec précision les géométries d'adsorption, sur la surface Si(001)-2×1, de quatre molécules possédant un groupe cyano, monofonctionnelle - comme l'acétonitrile - ou polyfonctionnelles - comme le benzonitrile, l'acrylonitrile et le cyanure de vinyle. La chimie organique fournit le cadre général des réactions possibles à la surface. Ce ...

  8. 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

    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.

  9. Programme d'appui au secteur non-structure urbain d'afrique francophone, 1ere phase: premier rapport d'avancement des activites du programme, fevrier 1982 - janvier 1983.

    Maldonado C

    1985-01-01

    ILO pub-WEP pub. Progress report on development projects intended to promote the informal sector in the urban areas of Bamako, Mali, Kigali, Rwanda and Lome, Togo - describes activities (incl. Training and management development) carried out among skilled worker, obstacles encountered, self- evaluation and attitudes of participants, etc.

  10. Effects of Aluminum on Respiratory Rate and Some Mitochondrial Enzymes Activit ies of Wheat Roots%铝胁迫对小麦根呼吸作用和一些线粒体结合酶活性影响

    何龙飞; 刘友良; 沈振国; 王爱勤

    2001-01-01

    比较了耐铝性不同的两品种小麦Altas 66和Scout 66根呼吸速率、线粒体H+-ATP 酶、 Ca2+-ATP酶和焦磷酸酶活性变化. 铝处理后, 两品种小麦根呼吸速率均下降 , 随处理铝浓度增加而加剧, 但对照和处理条件下, Altas 66根呼吸速率均高于Scout 66. 两品种小麦根线粒体膜上都存在H+-ATP酶、 Ca2+-ATP酶和H+-PP酶, 离体和活体铝处理后, 这些酶活性受到抑制, 在活体处理和Scout 66中更为明显. 呼吸速率下降可能与这些线粒体膜酶活性受到抑制有密切联系.

  11. Cohabiter avec les activités d'élevage : éléments de synthèse appliqués aux élevages porcins pour comprendre les enjeux environnementaux

    Pourcher, A.M.; MARTINEZ, J

    2009-01-01

    Piggeries produce effluents which contribute to the degradation of water, soil and air quality. The environmental impacts of emissions from piggeries are generally known: phosphorous build-up in the soil from repeated manure applications leading to eutrophication, and emissions of carbon dioxide, methane, and nitrous oxide contributing to the greenhouse effect. However, the impact of heavy metals on the environment and health risks associated with pig manure (and their estimation) are less do...

  12. Évaluation des effets de l'intéressement Aubry sur l'activité des bénéficiaires des minima sociaux à la Réunion

    Nadia Alibay; Nathalie Picard; Alain Trannoy

    2005-01-01

    The Aubry’s law voted in 1999 introduced a reform in the accumulation system of the specific minimum income recipients. This population is divided in two ones: the recipients of an api (allocation parent isolé) and the recipients of a rmi (revenu minimum d’Insertion). Our purpose is to study the effect of a reform by comparing these two populations, in a French oversea area where the unemployement is the most important in France. The api’s recipient can for the fist time draw salary and cash ...

  13. 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

    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.)

  14. Momentul de educaţie fizică în didactica activităţilor de învăţământ preuniversitar

    Cosmin Prodea; Remus Cristian Văidăhăzan

    2011-01-01

    The easiest way to give children the needed opportunity for physical activity is physical education in compulsory education. Physical education, in addition to physiological benefits that brings to the human body, will help increase work capacity of children to other disciplines.To address this idea further, we want to bring into focus an extracurricular form of physical activity. This form of physical activity was introduced long ago in the school program of children but, it seems, wit...

  15. Protective activity of a heparan mimetic in the radioinduced mucitis among mice; Activite protectrice d'un mimetique de l'heparane dans la mucite radio-induite chez la souris

    Violot, D.; Tao, Y.; Castaing, M.; Auperin, A.; Opolon, P.; Deutsch, E.; Bourhis, J. [Institut Gustave-Roussy, 94 - Villejuif (France); Morin, C. [Paris-12 Univ., 94 - Creteil (France); Mangoni, M. [Firenze Universita (Italy); Barritault, D. [OTR3 SAS, 75 - Paris (France)

    2007-11-15

    Evaluate the effect of R.G.T.A.-O.T.R.A.4131 a mimetic heparan derive from dextran, and the combination amifostin-O.T.R.A.4131 in the prevention of radiation-induced mucositis in mice and the proliferation of tumor cells in vivo and in vitro. O.T.R.A.4131 has shown an important protective effect of the radioinduced mucitis occurrence: the association with amifostin gives a protection almost complete, without interfering on the tumor growth. (N.C.)

  16. The low to intermediate activity and short living waste storage facility. For a controlled management of radioactive wastes; Le centre de stockage des dechets de faible et moyenne activite a vie courte. Pour une gestion controlee des dechets radioactifs

    NONE

    2006-07-01

    Sited at about 50 km of Troyes (France), the Aube facility started in 1992 and has taken over the Manche facility for the surface storage of low to intermediate and short living radioactive wastes. The Aube facility (named CSFMA) is the answer to the safe management of these wastes at the industrial scale and for 50 years onward. This brochure presents the facility specifications, the wastes stored at the center, the surface storage concept, the processing and conditioning of waste packages, and the environmental monitoring performed in the vicinity of the site. (J.S.)

  17. Application of Activited Carbon Fibers Electrodes to Capacitive Deionization of NaCl Solutions%活性炭纤维电极用于NaCl溶液电容性除盐

    杨慧云; 王岐东; 李斌

    2006-01-01

    采用活性炭纤维作电容去离子的电极,用于NaCl溶液的除盐实验,研究了电容去离子电极的性质.由实验结果可以看出,随着电极上所加电压的增加,电极上吸附容量随之增大,溶液中的离子浓度随之降低;当溶液种类和浓度一定时,吸附容量随着电压的增加而增加;当溶液种类和电压确定后,吸附容量随着浓度的增加而增加,并达到一个极限值.吸附还可以用Langmuir吸附等温线来描述.

  18. AREVA Technical Days (ATD) session 2: operations of the back-end of the nuclear fuel cycle; AREVA Technical Days (ATD) session 2: les activites du pole Aval du cycle du combustible nucleaire

    NONE

    2002-07-01

    These technical days organized by the Areva Group aims to explain the group activities in a technological and economic point of view, to provide an outlook of worldwide energy trends and challenges and to present each of their businesses in a synthetic manner. This second session deals with the reprocessing business, back-end financing mechanisms, technology transfer, environmental management, risk management programs, research and development contribution to waste volume reductions, issues and outlook of nuclear wastes, comparison of the open and closed cycles. (A.L.B.)

  19. Analyse de l’activité d’enseignants stagiaires du second degré en situation de vidéoformation autonome : Contribution à un programme de recherche technologique en formation

    Flandin, Simon

    2015-01-01

    This thesis reports on a research included in the empirical and technological program of "course-of-action", a program of cognitive anthropology jointly endorsing (i) an epistemic aim by producing concepts on human activity and (ii ) a transformative aim by designing aids enhancing the improvement of that activity. The thesis is part of a particular strand to video-enhanced teacher development. The research which it reports builds on previous work describing, analyzing and modeling the activi...

  20. 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

    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).

  1. Evolução de CO2 e atividades enzimáticas em amostras de solo tratado com herbicidas CO2 evolution and enzymatic activites in herbicide-treated soil samples

    G. Fernandez

    2009-01-01

    Full Text Available Os efeitos dos herbicidas bentazon, metolachlor, trifluralin, imazethapyr, imazethapyr+lactofen, haloxyfop-methyl, glyphosate e chlorimuron-ethyl, testados em duas concentrações (duas e dez vezes a dose média recomendada por hectare, sobre a atividade microbiana foram estudados em amostras de solo que nunca haviam recebido tratamento com pesticidas. Como bioindicadores, utilizou-se a respiração microbiana, quantificando a emissão de CO2 aos 2, 4, 8, 12, 16, 20 e 24 dias após incubação, a atividade da enzima desidrogenase e a hidrólise de diacetato de fluoresceína (FDA, aos 8 e 28 dias. Bentazon e a mistura de imazethapyr+lactofen na maior concentração e o haloxyfop-methyl nas duas concentrações apresentaram efeitos inibitórios na respiração edáfica, embora diferentes em época e duração do efeito. Nenhum dos tratamentos herbicidas afetou a hidrólise da FDA. A atividade da desidrogenase foi inibida, o que foi verificado em análise realizada aos oito dias,nas amostras de solo com alta concentração de bentazon e imazethapyr; no entanto, foi estimulada nos tratamentos com baixa concentração de metolachlor e imazethapyr e na maior concentração de glyphosate. A respiração basal e a atividade da desidrogenase mostraram maior sensibilidade na detecção de efeitos dos herbicidas sobre a microbiota do solo que as determinações da hidrólise de FDA. Apenas foi encontrada correlação significativa entre a atividade da desidrogenase e a respiração basal aos oito dias de incubação. Os resultados destacam a importância da consideração de múltiplos indicadores na avaliação dos efeitos de herbicidas na microbiota do solo.Effects of bentazon, metolachlor, trifluralin, imazethapyr, imazethapyr+lactofen, haloxyfop-methyl, glyphosate and chlorimuron-ethyl at rates of 2 and 10 times the equivalent commercial dose on soil microbial activity was evaluated in soil samples extracted from a field never treated before. Global soil microbe respiration, estimated by CO2 production at 2, 4, 8, 12, 16, 20, 24 and 28 days of soil incubation and enzymatic activities (dehydrogenase and fluorescein diacetate hydrolysis at 8 and 28 days were used as bioindicators. Bentazon and mixture imazethapyr+lactofen at the highest rate and haloxyfop-methyl at both rates, inhibited soil respiration although with differences in timing and duration. None of the herbicides affected FDA hydrolysis. Dehydrogenase activity was inhibited at 8 days of incubation with bentazon and imazethapyr at high rates but it was stimulated by metolachlor and imazethapyr at low rate and glyphosate at the highest rate. Herbicide effects on soil microbial activity was detected with higher sensitivity by global soil microbe respiration and dehydrogenase activity than by FDA hydrolysis. Only dehydrogenase activity and soil respiration estimations at 8 days of soil incubation had significant correlation. Results indicated the need of multiple estimations when evaluating herbicides effects on soil microbiota

  2. DramAula : les apports des activités dramatiques dans la compétence d'interaction orale en espagnol langue étrangère au collège

    Vidard, Véronique

    2014-01-01

    This thesis aims to analyse Spanish didactic and theatrical performance. Spanish didactic is analysed in the context of learning a second language in school with Year 8 children (4eme). The aim is to develop a theatrical didactic to be used by teacher to improve verbal communication in school. This research allows the creation of a new methodology called DramAula. The main objective of this work is to improve the teaching of a second language in school by developing confidence, autonomy and c...

  3. Activité biologique des poudres et des huiles essentielles de deux plantes aromatiques (Pseudoeviisus integrifolius Salib et Nepera nepetella L.) sur les ravageurs du blé et des légumes secs"

    kassemi, naima

    2015-01-01

    La toxicité des huiles essentielles, ainsi que les poudres des feuilles extraites de deux espèces aromatique P. in:egrfoIius et N. nepetella a été testée vis-à-vis Callosobruchus macularus, Acanthoscelides obtectus, Sitophilus granarius, Rhyzopertha dominica et Tribolium castaneum, afm d'évaluer quelques paramètres biologiques des ravageurs de stocks à savoir la mortalité des adultes, la fécondité et l'émergence des adultes. Les essais par deux types de traitement, contact et inha...

  4. 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

    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.

  5. Étudier l'activité des agents subalternes d'une organisation : travail et statut des manœuvres du bâtiment au Brésil

    Brochier, Christophe

    2001-01-01

    Le texte est consacré à discuter les implications du choix du vocabulaire pour désigner les participants à une organisation du travail. Dans le cas du bâtiment brésilien, l'utilisation des dénominations fonctionnelles habituelles pose des problèmes au chercheur dans la mesure où les termes véhiculent des représentations et des idées reçues en particulier pour la catégorie des manœuvres. Les fondements sociaux et techniques et de ces dénominations sont examinés.

  6. Roles des relations source-puits et de la competition intraspecifique dans l'evolution de l'activite assimilatrice du tournesol au cours de son cycle de developpement

    Merrien, A; Blanchet, R.; Gelfi, N.; Laurent, Julie

    1983-01-01

    Des travaux antérieurs ont mis en évidence une réduction de l’assimilation nette au cours du cycle de développement du tournesol, sans toutefois pouvoir en préciser les causes. Une expérimentation en vases de végétation a permis de montrer qu’il ne semble pas y avoir chez le tournesol d’influence directe marquée des relations source-puits sur l’évolution de la photosynthèse ; les assimilats peuvent s’accumuler assez indifféremment dans les organes végétatifs ou dans les graines. Parallèle...

  7. Le business model des entreprises sociales inclusives Cas des « secteurs » protégé, adapté et de l'insertion par l'activité économique en France

    Tantely Ranjatoelina, Jeremy; Dewitte, Adam; Bourkha, Bilal

    2015-01-01

    The limitations of Yunus’ work on social business models are a starting point of our research. After setting out his approach as unusable to analyze all social organizations, we empirically study the different forms of integration social enterprises (WISEs) in France. We then try to identify what are the distinguish features of the business model of the integration social enterprises? Our research shows that specific wasted human resources mobilization, through the organization of five integr...

  8. 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

    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.)

  9. Activity measurements and gamma emission intensities determination in the decay of Zn{sup 65}; Mesure de l'activite et des intensites des emissions gamma lors de la decroissance du Zn{sup 65}

    Be, M.M.; Amiot, M.N.; Bobin, C.; Lepy, M.C.; Plagnard, J.; Lee, J.M.; Lee, K.B.; Park, T.S.; Luca, A.; Sahagia, M.; Razdolescu, A.M.; Grigorescu, L.; Sato, Y.; Hino, Y.; Kossert, K.; Klein, R.; Schneider, M.H.K.; Schrader, H.; Dryak, P.; Sochorova, J.; Kovar, P.; Auerbach, P.; Havelka, M.; Altzitzoglou, T.; Iwahara, A.; Da Silva, M.A.L.; Delgado, J.U.; Da Silva, C.J.; Johansson, L.; Collins, S.; Stroak, A

    2005-07-01

    Over the last twenty years, a number of laboratories have participated to the Systeme International de Reference (SIR BIPM) and it appeared that the mass activity of {sup 65}Zn determined by the gamma-ray spectrometry was less by about 2% than the one determined by using 4{pi}{beta}-{gamma} coincidence counting. An international exercise EUROMET, action 721, was organized with the objective of improving the knowledge of decay data in the {sup 65}Zn disintegration. Nine laboratories participated, sending results for the activity measurement and the 1115 keV gamma emission intensity. For the activity measurement, the participants used the 4{pi}{beta}-{gamma} coincidence method mainly, resulting values and uncertainty budgets are described. From the new gamma emission intensities measured in this exercise and, taking into account previous published values, the intensity of the 1115 keV gamma emission has been determined being equal to: 50.22 (11) %. This new value must lead to derive activity values higher than those previously obtained, reducing the difference, with other techniques of measurement, to 1 %. Moreover, the uncertainty on the emission intensity value has been divided by a factor of two. (authors)

  10. Contribution to the investigation of the p53 in vivo and in vitro trans-activation activity; Contribution a l'etude de l'activite transactivatrice de p53 in vivo et in vitro

    Meiller, A

    2004-03-15

    Among the body's defence mechanisms, the programmed cellular death or apoptosis is an important safeguard way which allows the body to get rid of the injured cells before they acquire steady genetic modifications leading to an anarchistic multiplication. As p53 tumor suppressor gene plays a predominant role within this process, this research report first presents the p53 protein, its structure, its activities as a transcription factor, its modifications and the implications on its functional activities, its biological activities, and describes the p53 intracellular rate regulation and the use of this protein in radiology, particularly in 'in vivo' investigations on irradiated mice. It also presents the p53 family. Then, the author reports experimental investigations on possible other genes which could be trans-activated by p53. A gene is identified as a new target gene. She also demonstrates a new p53 activation path induced by another member of the p53 family, the p73 alpha protein.

  11. L'activité de prescription en contexte didactique. Analyse psycho-sociale, sémio-discursive et pragmatique des interactions en classe de langue étrangère et seconde.

    Riviere, Véronique

    2006-01-01

    Quel que soit le contexte éducatif et didactique, il semble que l'enseignant ne puisse se dispenser de prescrire, de dire de faire et de dire, de distribuer, par le biais de consignes, des tâches aux apprenants, dans le but d'améliorer leurs compétences langagières. La prescription ressortit de la fonction d'animation et d'information de l'enseignant, en tous les cas constitue une de ses prérogatives. Elle est ainsi à la fois l'écho d'un projet porté par celui-ci et/ou par l'institution éduca...

  12. La dimension interactionnelle de l'accompagnement en fomation professionnelle : l'activité des tuteurs dans la formation des assistant-e-s socio-éducatif-ve-s

    Wechsler, Brigitte

    2011-01-01

    Ce mémoire vise une première compréhension de l’accompagnement en formation professionnelle des futurs assistants socio-éducatifs (ASE) dans les entreprises formatrices par leurs tuteurs. Notre objet de recherche concerne, a trait à, porte sur sont les entretiens de formation durant lesquels les apprentis et leurs tuteurs discutent des objectifs d’apprentissage, des projets, des compétences acquises ou de celles à acquérir. Plusieurs entretiens de formation menés par différents tuteurs sur le...

  13. Optimization of the ALARA principle for the management and elimination of very low level radioactive waste; Optimisation de principe ALARA en matiere de gestion et d'elimination de dechets radioactifs de tres faible activite

    Regibeau, A.; Caussin, J.; De Spiegeleer, M.; Poelaert, M. [Univ. Catholique de Louvain, Service de Radioprotection, Louvain-la-Neuve (France)

    1992-07-01

    The management of low level solid radioactive waste, as proposed by the National Institutions, cannot be applied to waste produced in a University environment. The report from the Universite Catholique de Louvain (UCL) states the reasons and the procedure which has been set up by the radioprotection department. It describes the storage facilities and details the quality control tests carried out during the elimination process. The report outlines the difficulties encountered by the radioprotection departments due to the absence of normes for the disposal of solid radioactive waste. (author)

  14. Les Sciences Physiques À L'école Maternelle: Un Cadre Sociocognitif Pour La Construction Des Connaissances ET/OU LE Développement Des Activités Didactiques

    Ravanis, Konstantinos

    2005-05-01

    NATURAL SCIENCES IN KINDERGARTEN: A SOCIO-COGNITIVE FRAMEWORK FOR LEARNING AND TEACHING - The present study presents a socio-cognitive framework for the construction of the scientific knowledge of natural phenomena among pre-school children and for the development of science activities at kindergarten. It involves elements from theories of social interaction; social psychology of development and cognitive functioning; and research in natural-science teaching methods which acknowledge the importance and fundamental role of social interaction in the development of cognitive operations and learning. The study also presents some of the more significant results of the research carried out on different aspects of this topic. The discussion unfolded here supports the hypothesis that the construction of natural-scientific knowledge at the pre-school age and corresponding scholastic activities are necessary and effective.

  15. Dynamique, réactivité et écotoxicité des nanoparticules d’oxydes métalliques dans les sols : impact sur les fonctions et la diversité des communautés microbiennes

    Simonin, Marie

    2015-01-01

    Les nanoparticules métalliques manufacturées (NPs) sont des polluants émergents dont la concentration augmente dans les sols en raison de leur utilisation croissante dans de nombreux produits commerciaux de la vie courante (cosmétiques, aliments, peintures…). Des études in vitro ont montré la toxicité des NPs pour les microorganismes, mais il existe encore peu de données sur l'écotoxicité et le devenir de ces contaminants dans les sols. L'objectif de cette thèse est donc d'évaluer l'influence...

  16. Mobiliser une analyse de l'activité comme aide à la conception et à l'évaluation d'un Environnement Virtuel pour l'Apprentissage Humain : un exemple en implantologie dentaire

    Cormier, Jérémy

    2012-01-01

    The objective of this thesis is twofold: 1) to build knowledge in the theoretical field "didactique professionnelle" for living systems activities; 2) to help design and assess VirTeaSy. An analysis of the literature in dental V.E.T showed that "haptic V.E.T." seem to be the most relevant for the challenge of training in dental implantology. However, some studies show, there are still problems to be solved in terms of design methodology. Indeed, the usual design approach relies on collaborati...

  17. Extraction, caractérisation, réactivité chimique des substances humiques naturelles avec les phosphates de Hahotoe-Kpogame et leurs propriétés photodégradantes

    Koriko, Moursalou

    2010-01-01

    The need to increase agricultural yields has been leading to widespread and intensive utilization of agrochemicals for soil fertilization and plants protection as well. Irrational use of these various chemicals causes pollution of soil, surface water bodies and ground water. For this reason, the search for green fertilizers and the assessment of the behaviour and fate of organic pollutants in soil have become major research topics. It was in this regard that the present work was undertaken. I...

  18. L'accès à l'emploi après un CAP ou un baccalauréat professionnel : une évaluation expérimentale dans deux secteurs d'activité

    Florent Fremigacci; Yannick L'Horty; Loïc du Parquet; Pascale Petit; François Langot

    2013-01-01

    This study measures and compares the access to a job interview provided by two vocational degrees, ceteris paribus: a Certificat d’Aptitude Professionnelle (CAP), below A-level, and a vocational baccalauréat (A-level). The evaluation is performed on experimental data collected for plumbers and waiters between April and July 2011 in Paris area. Results highlight that the access to a job interview is not higher for a bachelor. In both occupations, employers value more an applicant with a CAP, c...

  19. Les PME-ETI cotées en bourse : la crise accentue les disparités et souligne les différences de réactivité.

    M. Brun; CAYSSIALS, J-L.; Kremp, E.

    2011-01-01

    Les PME-ETI cotées en bourse sont plus hétérogènes que leurs homologues non cotées en termes de dynamisme et de performance. En 2009, les plus rentables montrent une capacité de rebond supérieure.

  20. Annexe. Accord régissant les activités des états sur la lune et les autres corps célestes (ouvert à la signature le 18 décembre 1979)

    2015-01-01

    Les Etats parties au présent Accord, Notant les succès obtenus par les Etats dans l’exploration et l’utilisation de la Lune et des autres corps célestes, Reconnaissant que la Lune, satellite naturel de la Terre, joue à ce titre un rôle important dans l’exploration de l’espace, Fermement résolus à favoriser dans des conditions d’égalité le développement continu de la coopération entre Etats aux fins de l’exploration et de l’utilisation de la Lune et des autres corps célestes, Désireux d’éviter...

  1. Chemistry-transport coupling and retroactive effects on material properties within the context of a deep geological repository; Couplage chimie-transport et retroaction sur les proprietes des materiaux en contexte de stockage geologique profond. Synthese des activites de recherche

    Bildstein, O.

    2010-06-15

    The author gives an overview of his research and teaching activities. His researches first dealt with the development of a simulation of the chemistry/transport coupling and of the retroactive effects on transport parameters, then with the chemistry/transport modelling and its coupling with mechanics, and finally with the multi-scale investigation of porous materials. Perspectives are discussed and publications are indicated

  2. New procedures to measure synthase and phosphatase activities of bis-phosphoglycerate mutase. Interest for development of therapeutic drugs; Nouveaux procedes pour mesurer les activites synthase et phosphatase de la bisphosphoglycerate mutase. Interet pour le developpement de drogues therapeutiques

    Ravel, P.; Garel, M.C. [Hopital Henri-Mondor, 94 - Creteil (France); Toullec, D. [Laboratoire Glaxo Wellcome, 91- Les Ulis (France)

    1997-12-31

    In red blood cells, a modulation of the level of the allosteric effector of hemoglobin, 2,3-diphosphoglycerate (2,3-DPG) would have implications in the treatment of ischemia and sickle cell anemia. Its concentrations is determined by the relative activities of the synthase and phosphatase reactions of the multifunctional bis-phosphoglycerate mutase (BPGM). In this report we develop first a more direct synthase assay which uses glyceraldehyde phosphate to suppress the aldolase and triose phosphate isomerase reactions. Secondly we propose a radioactive phosphatase assay coupled to chromatographic separation and identification of the reaction products by paper electrophoresis. Such identification of these products allows us to show that the multifunctional BPGM expresses its mutase instead of its phosphatase activity in conditions of competition between the 3-phosphoglycerate and the 2-phospho-glycolate activator in the phosphatase reaction. These two more precise procedures could be used to study the effects of substrate and cofactor analogues regarding potential therapeutic approaches and could be used for clinical analyses to detect deficiency of BPGM. (author)

  3. AREVA Technical Days (ATD) session 4: operations of the front-end division of the nuclear fuel cycle; AREVA Technical Days (ATD) session 4: les activites du pole Amont

    NONE

    2004-07-01

    These technical days organized by the Areva Group aims to explain the group activities in a technological and economic point of view, to provide an outlook of worldwide energy trends and challenges and to present each of their businesses in a synthetic manner. This fourth session deals with the strategic and financial significance of the Areva mining operations, the Areva chemistry business, the Areva enrichment business and the Areva fuel business. (A.L.B.)

  4. The high-level and long life radioactive wastes management in France: inquiry near the actors; La gestion des dechets nucleaires a haute activite et a vie longue en France: enquete aupres des acteurs

    Le Dars, A

    2002-07-01

    This document presents talks carried out near various actors of the radioactive wastes management in France. These talks have been realized in the framework of an inquiry aiming at supporting the developments of an economic sciences thesis, relative to the sustainable management of the nuclear wastes. This inquiry aimed to better determine the actors stakes, the controversies on the technical choices, but also the possible cooperation. (A.L.B.)

  5. 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

    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.)

  6. 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

    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.)

  7. État des connaissances et incertitudes sur le changement climatique induit par les activités humainesScientific basis and uncertainties of human induced climate change

    Duplessy, Jean-Claude

    2001-12-01

    During the 20th century, the mean temperature of the air at the ground level has increased by 0.6±0.2 °C and the warmest air temperatures occurred after 1980. These were significantly warmer than those of the last millennium. Simultaneously, rain and drought, cold and heat wave frequencies have changed, mountain glaciers retreated and the sea-level increased by ˜10 cm. This warming was at least in part induced by human activities and will continue during the next decades. Its amplitude will depend on the rate of greenhouse gas and sulphate aerosols emissions, i.e. on energetic scenarios. Pending scientific uncertainties include cloud variations and interactions between the physical parts of the climate system and the biogeochemical cycles and the biosphere.

  8. The market of the activities bound to the wastes situation 2002-2003 and perspectives 2004; Le marche des activites liees aux dechets situation 2002-2003 et perspectives 2004

    NONE

    2003-12-01

    This study presents the different activities bound to the wastes, evaluates the economical stakes, the short-dated development perspectives, identifies the new markets and analyzes the regulations impact on the short-dated markets. It concerns the non hazardous and hazardous wastes. (A.L.B.)

  9. Les Marca (fin XVIIe - début XIXe siècles) : itinéraires et activités d'une dynastie de stucateurs piémontais en Franche-Comté et en Bourgogne

    Zito, Mickaël

    2013-01-01

    The topic of this thesis is the Marca dynasty, a piedmontese family from the Valsesia area, specialized in the stucco work. In the early eighteenth century, some of its members migrated to the Franche-Comté in France, in search of work, the others remaining in Piedmont. Their realizations can be studied in religious places and private houses in Italy, in Franche-Comté and Burgundy. These works (altars, pulpits, statues and bas-reliefs in stucco) were created between the late seventeenth centu...

  10. Les victimes silencieuses des crises humanitaires et l’(in)sécurité de leurs activités économiques : etude de cas parmi les migrants de deux villes tchadiennes

    Syntyche Nakar Djindil; Mirjam de Bruijn

    2009-01-01

    Lorsqu’une catastrophe humanitaire fait la une des médias, la communauté internationale se mobilise à réduire les conséquences les plus sérieuses. La population du Tchad connaît cependant des crises endémiques qui ne sont liées à aucun élément déclencheur particulier# ; elle ne reçoit pas l’assistance internationale nécessaire pour faire face à ces problèmes. La présente étude concerne 111 ménages de migrants de la région du centre du Tchad, qui ont, à cause de la guerre et de la sécheresse, ...

  11. 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

    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

  12. Study of hydrogenases activity inhibition by O{sub 2} and direct electrochemistry; Etude de l'inhibition par O{sub 2} de l'activite d'hydrogenases par electrochimie directe

    Baffert, C.; Leger, Ch.; Leroux, F.; Bertrand, P.; Guigliarelli, B. [Laboratoire de Bioenergetique et d' Ingenierie des proteines, BIP-CNRS, 13 - Marseille (France)

    2007-07-01

    At the present time, a great effort of research is made on the identification and the design of enzymes insensitive or low sensitive to O{sub 2}. In parallel, it seems important to understand the inhibition mechanisms in order to propose mutations able to limit this inhibition. The Protein Film Voltametry allows to obtain data which can not be observed or quantitatively obtained by other techniques. The enzyme is immobilized directly on the electrode and the electronic transfer is direct. The redox state of the enzyme depends on the potential of the electrode and the catalytic current is proportional to the enzyme activity. The data obtained for the Ni-Fe hydrogenase (Desulfovibrio fructosovorans) and for the Fe hydrogenase (Clostridium Acetobutylicum) will be compared to the data obtained for hydrogenases of other organisms, by Protein Film Voltametry as well as by other techniques. (O.M.)

  13. 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

    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.

  14. Dégradation du S-métolachlore dans une ZTHA en fonction de l’activité microbienne, conditions d’oxydoréduction et des différentes sources de carbone

    Hoyos, C.

    2014-01-01

    A new method to estimate the biodegradation potential of S-metolachlorin a constructed wetland (ZTHA, Bray) was developed. For that propose, batch experiments were performed with sediments collected from ZTHA. The half life of S-metolachlor was determined under biotic and abiotic conditions (sterile microcosms), aerobic and anoxic conditions and in the presence of different carbon sources (crush plants or acetate). One assay was performed without any carbon source. The results suggest that th...

  15. Le bien-être au travail en mutation chez les enseignants - une nouvelle approche guidée par la théorie culturelle et historique de l’activité

    Launis, Kirsti; Koli, Annarita

    2014-01-01

    De nombreuses recherches ont révélé que le stress et l’épuisement au travail des enseignants sont en progression. Il s’agit manifestement d’un grave problème constituant une menace pour leur santé et leur bien-être. Au cours de cette étude, les chercheurs ont mesuré les diverses sollicitations exercées dans le travail d’enseignantes et présenté des propositions pour améliorer leur travail et ses conditions de réalisation. Ces propositions ont été prises en compte dans des programmes de format...

  16. Étude de l’activité antimicrobienne des souches de bactéries lactiques isolées d’un produit laitier traditionnel Algérien «Jben

    ABID, Zoulikha

    2015-01-01

    م لخص حسخخذ بنخٞزٝا ح طَ اىلامخٞل فٜ اىخخ َٞز حٗفع الأغذٝت اىعع ٝ٘ت عٍ إ خّاج أح اَض عع ٝ٘ت اٍٗ٘د عٍادة خلاه عٍْ بعط اىسلالاث اى سَببت ىلأ زٍاض. bactériocine ىيبنخٞزٝا أخزٙ ثٍو أخو إظ اٖر اىخأثٞز اىنابح ى ذٖ اىبنخٞزٝا، درس اْ ق ة٘ عٍادٝت 16 سلالاث عٍز ىٗت خٍْداث الأىبا اىدزائزٝت اىخقيٞذٝت "اىدب "ِ خٗ اٖ ى خ٘ ث ه اَ ةّ ٜ سلالاث سٍببت ىلأ زٍاض: (Escherichia coli, Listeria monocytogenes, Staphylococcus aureus, Micrococcus lutus Bacillus cereus, Klebsiella pneumoniae, Pseudomonas ...

  17. Evaluation de l'activité antifongique de deux dérivés et test d'innocuitéin vivo de shampooings à visée antipelliculaire ainsi formulés.

    Rivalland, P; Coiffard, L; Lelaure, M; Roeck-Holtzhauer, Y D

    1994-04-01

    Synopsis Two thirds of the population suffer more or less severely from dandruff, a dermatological disease associated with the yeast Pityrosporum ovale. This paper demonstrates the anti-fungal activity of two substances commonly used in hair cosmetics: zinc pyrithione and piroctone olamine, at several concentrations. Based on an optimum concentration, two shampoos were formulated in order to determine the cutaneous tolerance of the finished cosmetics. A profilometry study was carried out using negative impressions obtained from skin prints to calculate the cutaneous tolerance. This study revealed the superiority of the piroctone olamine as an anti-fungal substance and its cutaneous tolerance was also better. PMID:19250498

  18. 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

    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.)

  19. Evolution à court terme des effectifs et de l'activité des communautés bactériennes dans des écosystèmes d'aquaculture

    Bianchi, Armand J.; Bianchi, Micheline A.

    1982-01-01

    SHORT-TERM VARIATION OF BACTERIAL COMMUNITIES CONCENTRATION AND ACTIVITY IN AQUACULTURE ECOSYSTEMS. Two kinds of short-term experiments were carried out on sea-water bacterial commun­ities of shrimp aquaculture in Polynesia at the Centre Océanologique du Pacifique (Tahiti). A 12 m3 sea-water tank was considered. The total number (AOC) and hétérotrophie activity of bacteria were studied during a 48 hours experiment with a 2 hours sampling time The total bacterial community was about 10? bacter...

  20. Progress report - fuel cell system of the L2ES 2000-2004; Rapport d'activites - systeme pile a combustible du L2ES 2000-2004

    NONE

    2005-07-01

    Fuel cell activities started in L2ES in 2000. Among all the definitions of the fuel cell system, the laboratory considers as the fuel cell generator, the stack, the ancillaries (air and hydrogen or more generally fuel supply, valves, humidifier or gas treatment, cooling), power electronics, buffer storage and control. The research topics at L2ES are: - fuel cell system modelling - fuel cell system architecture and its optimization - diagnosis and life time. All these topics are described into details. The perspectives and prospects of the laboratory at middle term are specified. (O.M.)

  1. Evaluation de l'activité photocatalytique de catalyseurs déposés sur différents supports ("médias") - Application à la conception d'un photoréacteur pilote.

    Huchon, Raphaël

    2006-01-01

    Persistent organic compounds are present as pollutants in wastewaters from industrial plants, landfill leachates, hospital effluents, and many other sources. Thus some oxidation processes are now an essential step of purification of many industrial effluent treatment plants (H2O2/UV, O3/UV). Photocatalysis could be an alternative purification method for the cleaning up of some types of polluted waters because it is a process that can lead to total mineralization of almost every organic compou...

  2. Multifonctionnalité de l'agriculture familiale et diversification des activités dans le sertão semi-aride de l'État de Bahia (Brésil)

    Bittencourt Machado, Gustavo

    2009-01-01

    This thesis intends to understand the multifunctionality of the familial agriculture by the theoretical, conceptual and juridical approach according to the public policies that recognize the agricultural public functions or tasks for the semi-arid regions. The case study is the brazilian semi-arid sertão, specially the Sisal Territory, in the State of Bahia, using the Agrarian System Analysis-diagnostic. The agricultural multifonctionality is studied with their public functions, considering t...

  3. En quoi les activités non-structurées partagées entre les infirmier-ères et les patients en psychiatrie sont-elles thérapeutiques ?

    Lugrin, Joëlle; Gillioz, Frédéric

    2010-01-01

    A partir d’un questionnement personnel et professionnel fondé sur les cadres théoriques de Peplau (1988) et Gunderson (1978), ce travail explique comment adapter la pratique infirmière en psychiatrie dans la perspective d’aider la personne à interagir de manière saine avec son environnement. Il souligne de quelle manière les approches informelles et les attitudes thérapeutiques infirmières permettent aux patients en psychiatrie d’améliorer leur qualité de vie. Pour cela, ce travail définit en...

  4. Influence de la Bioturbation sur l'Activité Dénitrifiante dans des Sédiments Marins Côtiers. Effet d'un Apport Exogène de Matière Organique: les Hydrocarbures

    Gilbert, Franck

    1994-01-01

    L'objectif principal de ce travail était de mettre en évidence l'influence de la bioturbation induite par le macrobenthos sur la dénitrification dans un sédiment marin soumis à un apport ponctuel massif de matière organique (hydrocarbures). Deux types d'expérimentations complémentaires ont été réalisées: - In vitro, pour étudier les effets d'une population de Polychètes galéricoles Nereis diversicolor, - In situ (golfe de Fos) afin de mettre en évidence l'influence de la macrofaune autochtone...

  5. Activité d'éclairs et paramètres physiques issus de l'observation radar dans les orages : application au projet HyMeX

    Buguet, Magalie

    2012-01-01

    Regularly in autumn, high precipitating events occur in southeastern France, leading sometimes to floods or flash-floods having a high societal impact. One of the research topics of the Hydrological cycle in the Mediterranean Experiment (HyMeX) project is the improvement of the understanding and of the forecast of these events. The particularity of thunderclouds is the production of lightning flashes, preceded by the electrification of the cloud. Past studies have shown that the simultaneous ...

  6. Experimental study of the MHD activity associated to the mode m=2, n=1 in the Tore Supra tokamak; Etude experimentale de l`activite MHD associee au mode m=2, n=1 dans le tokamak Tore Supra

    Turlur, S.

    1996-09-20

    In tokamaks such as Tore Supra, the plasma confinement magnetic structure can be severely affected when Magnetohydrodynamic (M.H.D.) instabilities are destabilized. Experimentally, these instabilities are detected as magnetic fluctuations with captors located against the inner wall of the vacuum vessel. Fourier analysis provides amplitude, frequency and wave numbers of magnetic modes. In case of fast or transient phenomena, the analysis of magnetic fluctuations is completed using the singular value decomposition. In this dissertation, these analysis techniques are used to study two specific examples of M.H.D. activity related to the m = 2, n = 1 mode. On Tore Supra, the onset of this mode have strong consequences on the stability of partially or fully non inductive discharges. A regular and persistent sawtooth-like regime is observed on the electronic temperature leading to a significant degradation of the central confinement. Heat exhaust and particle balance are also essential parameters to achieve stationary discharges. On Tore Supra, these are studied with the ergodic divertor which produces stochastic magnetic field lines at the plasma edge. For optimal operating conditions of the ergodic divertor, the growth of the m = 2, N = 1 mode can lead to sudden destruction of magnetic equilibrium. For both cases, understanding and characterization of mechanisms leading to the observed m = 2, n = 1 M.H.D. activity are fundamental to obtain stationary discharges. (author). 115 refs.

  7. Adaptation of digestive enzymes to dietary protein, carbohydrate and fibre levels and influence of protein and carbohydrate quality in Penaeus vannamei larvae (Crustacea, Decapoda)

    Le Moullac, Gilles; Van Wormhoudt, Alain

    1994-01-01

    L'activité des enzymes digestives (trypsine, chymotrypsine et amylase) au cours des premiers stades larvaires de Penaeus vannamei est étudiée en relation avec l'alimentation. Les microparticules à base de caséine diminuent le contenu protéique soluble et les activités enzymatiques. L'activité spécifique de la trypsine est corrélée (p

  8. Programme PSDR MODINTOUR. Document de cadrage. MOdeles INnovants de TOURisme : contribuer à une évolution positive et innovante des modèles de tourisme qui ont cours dans les espaces ruraux

    Marsat, J.B.; Bonniot, A.

    2009-01-01

    / Le programme Modintour a pour ambition de contribuer au développement sectoriel de l'activité touristique en Auvergne : meilleure connaissance des contours de l'activité, de la demande et de l'activité marketing, de certains acteurs à engagements multiples, et des problèmes liés à la gouvernance. Mais il s'attache aussi à l'analyse de la transversalité du tourisme, son intégration territoriale : la synergie possible entre le tourisme et d'autres secteurs d'activité : culture, environneme...

  9. Environment and Organisation

    Jørgensen, Michael Søgaard; Jørgensen, Ulrik; Rasmussen, Bent Hesse;

    1998-01-01

    The article presents the theoretical and methodological concept for teaching in environmental company activites at the post-graduate masters programme in Environmental Management at DTU......The article presents the theoretical and methodological concept for teaching in environmental company activites at the post-graduate masters programme in Environmental Management at DTU...

  10. Contribution à l'étude de l'activité biologique d'une espèce du genre Rata de Djebel Tessala (Algérie occidentale) et à la faisabilité d'un Plan de conservation.

    BOUMEDIENE, Noureddine, AGHA Omar

    2015-01-01

    Résumé Dans le cadre de la valorisation des espèces végétales méditerranéennes et en particulier la flore locale de djebel Tessala (wilaya de Sidi Bel Abbés), nous avons mené une étude sur la quantification des huiles essentielles d'une espèce du genre Ruta et de mettre en évidence l'effet antibactérien des huiles essentielles de cette espèce. L'extraction des huiles essentielles par hydrodistillation de Ruta Chalepensis L. a révélée un rendement de l'ordre de 7.23%. L'ét...

  11. The coordination of research and innovation activities relative to an emergent technology: the case of batteries for electric and hybrid vehicles; La coordination des activites de recherche et d'innovation dans les phases d'emergence: le cas des batteries pour vehicules electriques et hybrides

    Larrue, Ph.

    2000-05-23

    In this thesis, we try to provide elements of a non-deterministic view of the coordination of research activities in the phase of emergence. Firstly, we try to identify the variables that determinate the strength and the characteristics of the imperative of coordination in this very preliminary period of an innovation process. Secondly, we try to evaluate the institutional arrangements that can effectively sustain the coordination of the activities of the various interdependent actors more or less involved in the innovation process. The basic idea of the thesis is that technological innovations do not originate as isolated according to a hypothetical underlying 'nature of the technology', especially when they are controversial and subject to great uncertainties as is the case with regard to batteries for Electric and hybrid Vehicles (EVs). Innovations appear to be generated by means of the interactions of a number of organizations belonging to different 'spheres' (different industries, scientific disciplines, public institutions, etc.). In order to validate a new area of opportunity which is still very uncertain at this preliminary stage, the competences and interests of these different organizations must be coordinated. Because of the complex mix of economic and technological barriers faced by the actors taking part in this innovation process, the area of batteries for electric and hybrid vehicles is the 'perfect laboratory' to investigate the institutional arrangements that can sustain the coordination of research and innovation activities relating to an emerging technology. The empirical and theoretical investigations are mainly focused on pre-competitive research consortia such as the United-States Advanced Battery Consortium (USABC). This case study is conducted through in-depth interviews with key-actors of the area of batteries and electric vehicles. We also use the results of an on-line experts opinions survey we performed. (author)

  12. Elaboration et réactivité interfaciale d'oxydes pérovskites à base de Lanthane Strontium Chrome Ruthénium (LSCrRu) comme composés d'anode de piles à combustible à température intermédiaire (ITSOFC).

    Combemale, L.

    2005-01-01

    New data on the interest of ruthenium doped lanthanum strontium chromite La1-xSrxCr1-yRuyO3δ (LSCrRu) as anode in ITSOFC are presented. Microwave synthesis of mixed oxides allowed shaping of half-cells and complete cells using sputtering and screen printing methods. LSCrRu methane reforming property had been studied in a mono-chamber system coupled with a mass spectrometer in collaboration with Institut de REcherche Hydro-Québec. Anode/electrolyte interfacial reactivity had been analysed usi...

  13. Activité des failles de la plaque supérieure dans l'avant-arc côtier du nord du Chili (~23°30'S) : Paléosismologie, implications néotectoniques et relation avec le cycle de subduction

    Cortes Aranda, Joaquin,

    2012-01-01

    L'évolution tectonique du nord du Chili est contrôlée par la convergence des plaques Nazca et Amérique du Sud. Ce processus entraîne des déformations élastiques qui s'accumulent à proximité de la zone de contact inter-plaque. Celles-ci sont en grande partie relâchées à l'occasion des méga-séismes de subduction, dont la période de retour est légèrement supérieure au siècle. Cependant, une partie de la déformation due à la convergence est transférée de façon permanente au sein de la Plaque Sud-...

  14. Retours d’expérience concernant les activités de veille stratégique dans les entreprises : vers une évolution de l’ingénierie ? Une étude de cas dans une grande organisation d’un secteur industriel

    Manelle Guechtouli; Serge Amabile; Coralie Haller; Adrien Peneranda

    2014-01-01

    This paper is dealing with major issues on a competitive intelligence system. Our research is based on an inductive approach as we study the case of the competitive intelligence system of a big technological firm. Results identify 3 categories of factors

  15. Contribution of molecular modeling and of structure-activity relations to the liquid-liquid extraction. Application to the case of U(VI) extraction by monoamides; Apport de la modelisation moleculaire et des relations structure -activite a l`extraction liquide-liquide. Application au cas de l`extraction d`U(VI) par les monoamides

    Rabbe, C.

    1996-06-07

    In France, spent fuels are in most cases reprocessed. The aim of the reprocessing is to separate the recyclable fissile materials (for instance, uranium and plutonium) of radioactive wastes. The industrial process used until now is the Purex (Plutonium Uranium Refining by EXtraction) process. Recently (1991), the CEA has undertaken researches on the fields of separation and transmutation of long-lived radionuclides as minor actinides. Some molecules with an amide function have been at first considered especially for the uranium extraction. In order to rationalize the research of new extracting molecules, some molecular modeling methods (quantum chemistry calculations, molecular mechanics) have been used. In fact, there are three determining parameters for a molecule to be a good extractant: it has to own: (1) one or several sites which present a sufficient electron density in order that the metallic cation be complexed (2) the smallest possible substituents to avoid interferences with the complexation (3) a sufficient lipophilic effect. (O.M.). 139 refs., 43 figs., 36 tabs.

  16. Register of Education and Training Activities in Librarianship, Information Science and Archives = Inventaire des activites de formation dans le domaine de la bibliotheconomie, des sciences de l'information et de l'archivistique = Inventario de las actividades de formacion en la esfera de la bibliotecologia, las ciencias de la informacion y la archivologia.

    de Grolier, Eric, Comp.

    This register provides information on information science, librarianship, documentation, and archival science training activities conducted outside regular university courses organized by specialized schools. Based on a December 1980 UNESCO questionnaire survey, the register includes seminars, refresher courses, continuing education courses, and…

  17. L’Arma dei Carabinieri e le attività di prevenzione e repressione delle organizzazioni criminali /The « Arma dei Carabinieri » and the prevention and repression of organized crime / L’Arme des Carabiniers et les activités de prévention et de répression des organisations criminelles

    Parente Mario

    2010-03-01

    Full Text Available Organized crime now has an international face: it controls illegal international activities and all the huge profits made by drug trafficking, the illegal weapons business, money laundering and trafficking of human beings. There are new criminals in the international criminal scene: people from North Africa, Nigeria, Albania, Macedonia, Kosovo, Russia and China.Italy is the destination of much illegal migratory flow, so the “Arma dei Carabinieri” is investigating criminal organisation thanks to new investigative resources.It remains a hard obstacle to overcome. Organized crime exploits different countries’ legal systems and exploits the police’s techniques of investigation.In order to fight international organized crime and the trafficking of human beings, it’s important to increase international co-operation and to promote legal agreements.

  18. De l’idée au marché : l’ITERG renforce ses activités dans la chimie verte avec la plateforme CEDOP, Centre européen de développement des oléo-produits

    Alfos Carine

    2012-01-01

    Full Text Available ITERG, the Industrial Technical Centre (CTI for Fats and Oils, under the supervision of the Ministry of Economy, Finance and Employment, located in Pessac has undertaken the project to build a technology platform (to be operational in early 2012 dedicated to innovation and transfer in the field of oleochemicals from experimental to semi-industrial scales. This platform, CEDOP (European Centre for the Development of Oleo-Products can offer within the same entity, expertise and scalability from laboratory to semi-industrial productions, to industrial manufacturers, processors, distributors and value chain actors of oleo-products. This project unique in its design, perfectly in tune with public policies for innovation and development of green chemistry, not only meets the needs of manufacturers and their markets but also the current socio-economic expectations in terms of environment and sustainable development. The CEDOP project total investment reached 8,700,000 € [buildings (laboratories, industrial and pilot halls, technical offices and equipment]. After the positive results of preliminary studies (competition, market research, risk assessment and the inclusion of CEDOP in the “State-Aquitaine Region Contract of Projects”, public institutions (Regional Council, State, FEDER, local and professional organization (ONIDOL brought together 85% of the project funding. Such a support reflects the confidence of the stakeholders in ITERG’s independent entrepreneurial skills in scientific and technology to meet public and professional policies, but above all in the large scope of corporate customers from different sectors of activity, potential future users of the tool. This project for research and technology transfer is fully integrated in ITERG’s development and diversification strategies and aims to develop an attractive lipochemistry-technology cluster.

  19. Etude préliminaire de l'influence des disponibilités alimentaires et des activités humaines sur l’utilisation spatiale de l’habitat par les chimpanzés et les bonobos1

    Narat, Victor; Cibot, Marie; Bokika Ngawolo, Jean Christophe; Dumez, Richard; Krief, Sabrina

    2012-01-01

    L’étude des interactions existant entre les populations locales, l’environnement et les grands singes est indispensable pour une meilleure compréhension des capacités d'adaptation des grands singes aux perturbations de l’habitat et pour l’évaluation des menaces spécifiques au contexte local. De telles études peuvent contribuer à améliorer l’efficacité et la durabilité des actions de conservation ainsi que le développement des populations locales. Cette étude préliminaire compare l’influence d...

  20. Métabolites secondaires des plantes et comportement animal: surveillance sanitaire et observations de l'alimentation des chimpanzés (Pan troglodytes schweinfurthii) en Ouganda. Activités biologiques et étude chimique de plantes consommées

    Krief, Sabrina

    2003-01-01

    Afin de sélectionner des plantes ayant des propriétés pharmacologiques, un suivi éthologique et vétérinaire de chimpanzés (Pan troglodytes schweinfurthii), a été conduit, grâce à des méthodes non-invasives (parasitologie, analyses d'urine et observations vétérinaires) dans le Parc National de Kibale, en Ouganda. Des essais biologiques antiparasitaires, antibactériens, antifongiques, antiviraux et cytotoxiques ont été pratiqués in vitro sur 84 extraits bruts, provenant de 24 espèces de plantes...