WorldWideScience

Sample records for species nouvelles especes

  1. New french uranium mineral species; Nouvelles especes uraniferes francaises

    Energy Technology Data Exchange (ETDEWEB)

    Branche, G; Chervet, J; Guillemin, C [Commissariat a l' Energie Atomique, Lab. du Fort de Chatillon, Fontenay-aux-Roses (France). Centre d' Etudes Nucleaires

    1952-07-01

    In this work, the authors study the french new uranium minerals: parsonsite and renardite, hydrated phosphates of lead and uranium; kasolite: silicate hydrated of uranium and lead uranopilite: sulphate of uranium hydrated; bayleyite: carbonate of uranium and of hydrated magnesium; {beta} uranolite: silicate of uranium and of calcium hydrated. For all these minerals, the authors give the crystallographic, optic characters, and the quantitative chemical analyses. On the other hand, the following species, very rare in the french lodgings, didn't permit to do quantitative analyses. These are: the lanthinite: hydrated uranate oxide; the {alpha} uranotile: silicate of uranium and of calcium hydrated; the bassetite: uranium phosphate and of hydrated iron; the hosphuranylite: hydrated uranium phosphate; the becquerelite: hydrated uranium oxide; the curite: oxide of uranium and lead hydrated. Finally, the authors present at the end of this survey a primary mineral: the brannerite, complex of uranium titanate. (author) [French] Dans ce travail, les auteurs etudient les nouveaux mineraux uraniferes francais: parsonsite et renardite, phosphates hydrates de plomb et d'uranium; kasolite: silicate hydrate d'uranium et de plomb uranopilite: sulfate d'uranium hydrate; bayleyite: carbonate d'uranium et de magnesium hydrate; {beta} uranolite: silicate d'uranium et de calcium hydrate. Pour tous ces mineraux, les auteurs donnent les caracteres cristallographiques, optiques, et les analyses chimiques quantitatives. Par contre, les especes suivantes, tres rares dans les gites francais, n'ont pas permis d'effectuer d'analyses quantitatives. Ce sont: l'ianthinite: oxyde uraneux hydrate; l'{alpha} uranotile: silicate d'uranium et de calcium hydrate; le bassetite: phosphate d'uranium et de fer hydrate; la hosphuranylite: phosphate duranium hydrate; la becquerelite: oxyde d'uranium hydrate; la curite: oxyde d'uranium et de plomb hydrate. Enfin, les auteurs presentent a la fin de cette etude

  2. EDF Energies Nouvelles - 2010 Registration Document

    International Nuclear Information System (INIS)

    2011-01-01

    EDF Energies Nouvelles is a world leader in renewable energy electricity. The company develops, builds and operates clean energy power plants both for its own account and for third parties. Historically, EDF Energies Nouvelles primarily developed its business in two geographical areas, Europe and North America (U.S., Canada and Mexico). EDF Energies Nouvelles is a subsidiary of EDF, helping the Group to achieve its renewable energy goals. The EDF Group generates low-carbon electricity around the world and actively participates in the energy transition. EDF Energies Nouvelles prioritizes development of wind and photovoltaic solar capacity. As an integrated operator with global reach, EDF Energies Nouvelles covers the entire renewable energy chain, from development to operation and maintenance, and manages all project phases in-house. This document is EDF Energies Nouvelles' registration document for the year 2010. It contains information about Group profile, governance, business, investments, property, plant and equipment, management, financial position, employees, shareholders, etc. The document includes the half-year and full year financial reports

  3. EDF Energies Nouvelles. Financial report at June 30, 2011

    International Nuclear Information System (INIS)

    2011-01-01

    EDF Energies Nouvelles is a world leader in renewable energy electricity. The company develops, builds and operates clean energy power plants both for its own account and for third parties. Historically, EDF Energies Nouvelles primarily developed its business in two geographical areas, Europe and North America (U.S., Canada and Mexico). EDF Energies Nouvelles is a subsidiary of EDF, helping the Group to achieve its renewable energy goals. The EDF Group generates low-carbon electricity around the world and actively participates in the energy transition. EDF Energies Nouvelles prioritizes development of wind and photovoltaic solar capacity. As an integrated operator with global reach, EDF Energies Nouvelles covers the entire renewable energy chain, from development to operation and maintenance, and manages all project phases in-house. This document is EDF Energies Nouvelles's half-year financial report for 2011. It contains a half-year activity report, the consolidated financial statements at June 30, 2011 and the report drafted by the Statutory Auditors

  4. Patrones espaciales de la riqueza específica de las culebras Thamnophis en México Spatial patterns of species richness of garter snakes Thamnophis in Mexico

    Directory of Open Access Journals (Sweden)

    Crystian Sadiel Venegas-Barrera

    2011-03-01

    Full Text Available Se identificaron tanto las áreas de mayor riqueza específica de las culebras del género Thamnophis y su presencia en las provincias biogeográficas y las Regiones Terrestres Prioritarias (RTP, como los factores antropogénicos que pueden influir en su distribución. Con la combinación de mapas de distribución potencial de las especies se creó un mapa de riqueza específica para calcular el porcentaje de celdas ocupadas por el género dentro de cada provincia biogeográfica, de cada RTP y conocer el tipo de uso de suelo. Además, se obtuvo la complementariedad de especies y la ordenación de las RTP a partir de su composición específica. El género se distribuyó en el 80.5% de México, en todas sus provincias biogeográficas. Los estados de Durango, Michoacán, Puebla, Veracruz y Oaxaca presentaron la mayor riqueza específica. Potencialmente, el género puede encontrarse en el 96% de las RTP de México con un patrón altitudinal y climático. De 6 grupos de las RTP, el grupo oriental presentó la mayor riqueza específica. El 25.8% de la distribución potencial del género se encontró en áreas modificadas por el hombre. Se discuten los patrones de distribución bajo una perspectiva ecológica, biogeográfica y de conservación y se sugiere comprobar la riqueza específica potencial con estudios de campo.We identified areas of high species richness of snakes of the genus Thamnophis, their presence within biogeographic provinces and Terrestrial Priority Regions (TPR. We also identified anthropogenic factors that may influence their distribution. We created a map of species richness from the combination of potential distribution maps of species to calculate the percentage of cells occupied by the genus within each biogeographic province, TPR and type of land use. In addition, we obtained the complementarity of species and the ordination of TPR from its species composition. The genus is distributed in 80.5% of Mexico, in all biogeographic

  5. EDF Energies Nouvelles. Consolidated financial statements at 30 June 2009

    International Nuclear Information System (INIS)

    2010-01-01

    EDF Energies Nouvelles is a world leader in renewable energy electricity. The company develops, builds and operates clean energy power plants both for its own account and for third parties. Historically, EDF Energies Nouvelles primarily developed its business in two geographical areas, Europe and North America (U.S., Canada and Mexico). EDF Energies Nouvelles is a subsidiary of EDF, helping the Group to achieve its renewable energy goals. The EDF Group generates low-carbon electricity around the world and actively participates in the energy transition. EDF Energies Nouvelles prioritizes development of wind and photovoltaic solar capacity. As an integrated operator with global reach, EDF Energies Nouvelles covers the entire renewable energy chain, from development to operation and maintenance, and manages all project phases in-house. This document is EDF Energies Nouvelles's registration document for the year 2009. It contains information about Group profile, governance, business, investments, property, plant and equipment, management, financial position, employees, shareholders, etc. The document includes the group's consolidated financial statements at 31 December 2008

  6. La nouvelle-tableau (2

    Directory of Open Access Journals (Sweden)

    Géraldine Jenvrin

    2012-06-01

    Full Text Available La nouvelle « Frémissante, la feuille se flétrit » met en scène le trouble d'un détenu qui par les seuls objets dont il dispose, lutte pour s'échapper intérieurement. L'usage du regard cinématographique porté sur les détails infimes de la matérialité carcérale, leur exposition sous forme de tableaux se faisant échos, les techniques de l’anonymat et du brouillage des repères objectifs, portent à son comble les dimensions énigmatiques et l'esthétique de la  brièveté propre à la nouvelle tout en permettant de  représenter la résistance de l'homme à l'enfermement et à la persécution.

  7. A new French uraniferous species: parsonsite; Une nouvelle espece uranifere francaise: la parsonsite

    Energy Technology Data Exchange (ETDEWEB)

    Branche, G; Chervet, J; Guillemin, C

    1949-12-01

    This report presents the mode of occurrence, the optical properties, the crystallography, and the chemical analysis of the first parsonsite (uranium and lead phosphate) samples found at Lachaux and Grury (Puy-de-Dome, France). The quantitative chemical analysis scheme is given in detail.

  8. A new French uraniferous species: renardite; Une nouvelle espece uranifere francaise: la renardite

    Energy Technology Data Exchange (ETDEWEB)

    Branche, G; Chervet, J; Guillemin, C

    1949-12-01

    Renardite (PbO{sub 4}UO{sub 3}P{sub 2}O{sub 5} (9 H{sub 2}O)), is an uranium and lead phosphate previously reported only from Kasolo and Shinkolobwe, Belgian Congo. It has been discovered at Grury, France inside granulite nodules and cracks and also inside the cavities of porous pechblende. Several modes of occurrence and the crystallographic and chemical properties of this mineral are described. (J.S.)

  9. Les especes indonesiennes du genre Homalictus Cockerell (Hymenoptera, Apoidea, Halictidae)

    NARCIS (Netherlands)

    Pauly, A.

    1980-01-01

    RÉSUMÉ Cette note donne la distribution et des clés pour la séparation des 16 espèces de Homalictus Cockerell (groupe Homalictus, s.str.) recensées en Indonésie, île de NouvelleGuinée excepté. Six espèces nouvelles sont décrites (declivis, kangeani, moearae, ranacus, subdeclivis, vechti) ainsi que

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

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

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

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

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

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

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

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

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

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

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

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

  14. EDF Energies Nouvelles. Consolidated financial statements at 31 December 2008 Prepared in accordance with IFRSs

    International Nuclear Information System (INIS)

    2009-01-01

    EDF Energies Nouvelles is a world leader in renewable energy electricity. The company develops, builds and operates clean energy power plants both for its own account and for third parties. Historically, EDF Energies Nouvelles primarily developed its business in two geographical areas, Europe and North America (U.S., Canada and Mexico). EDF Energies Nouvelles is a subsidiary of EDF, helping the Group to achieve its renewable energy goals. The EDF Group generates low-carbon electricity around the world and actively participates in the energy transition. EDF Energies Nouvelles prioritizes development of wind and photovoltaic solar capacity. As an integrated operator with global reach, EDF Energies Nouvelles covers the entire renewable energy chain, from development to operation and maintenance, and manages all project phases in-house. This document is EDF Energies Nouvelles's registration document for the year 2008. It contains information about Group profile, governance, business, investments, property, plant and equipment, management, financial position, employees, shareholders, etc. The document includes the group's consolidated financial statements at 31 December 2008

  15. EDF Energies Nouvelles. Consolidated financial statements at 31 December 2007 Prepared in accordance with IFRSs

    International Nuclear Information System (INIS)

    2008-01-01

    EDF Energies Nouvelles is a world leader in renewable energy electricity. The company develops, builds and operates clean energy power plants both for its own account and for third parties. Historically, EDF Energies Nouvelles primarily developed its business in two geographical areas, Europe and North America (U.S., Canada and Mexico). EDF Energies Nouvelles is a subsidiary of EDF, helping the Group to achieve its renewable energy goals. The EDF Group generates low-carbon electricity around the world and actively participates in the energy transition. EDF Energies Nouvelles prioritizes development of wind and photovoltaic solar capacity. As an integrated operator with global reach, EDF Energies Nouvelles covers the entire renewable energy chain, from development to operation and maintenance, and manages all project phases in-house. This document is EDF Energies Nouvelles's registration document for the year 2007. It contains information about Group profile, governance, business, investments, property, plant and equipment, management, financial position, employees, shareholders, etc. The document includes the group's consolidated financial statements at 31 December 2007

  16. EDF Energies Nouvelles. Consolidated financial statements at 31 December 2006 Prepared in accordance with IFRSs

    International Nuclear Information System (INIS)

    2007-01-01

    EDF Energies Nouvelles is a world leader in renewable energy electricity. The company develops, builds and operates clean energy power plants both for its own account and for third parties. Historically, EDF Energies Nouvelles primarily developed its business in two geographical areas, Europe and North America (U.S., Canada and Mexico). EDF Energies Nouvelles is a subsidiary of EDF, helping the Group to achieve its renewable energy goals. The EDF Group generates low-carbon electricity around the world and actively participates in the energy transition. EDF Energies Nouvelles prioritizes development of wind and photovoltaic solar capacity. As an integrated operator with global reach, EDF Energies Nouvelles covers the entire renewable energy chain, from development to operation and maintenance, and manages all project phases in-house. This document is EDF Energies Nouvelles's registration document for the year 2006. It contains information about Group profile, governance, business, investments, property, plant and equipment, management, financial position, employees, shareholders, etc. The document includes the group's Consolidated financial statements at 31 December 2006

  17. Jean Gadrey, Nouvelle économie, nouveau mythe ?

    Directory of Open Access Journals (Sweden)

    Diane-Gabrielle Tremblay

    2002-10-01

    Full Text Available La « nouvelle économie » est partout dans les médias nord-américains, comme européens. L’ouvrage de Jean Gadrey est rafraîchissant, car il présente une critique et une analyse minutieuse du concept, de son apparition, des développements qui y sont associés, des thèses et idées défendues au nom de la « nouvelle économie ».Comme il le note bien « les mythes mobilisateurs fleurissent, mais la réflexion sur les contours de cet âge et sur les risques sociaux à prévenir est inexistante : les formul...

  18. L’Observatoire numérique Nouvelle-Calédonie

    Directory of Open Access Journals (Sweden)

    Charlotte Ullmann

    2013-06-01

    Full Text Available Ses missions consistent à observer le développement numérique et favoriser l’animation territoriale des acteurs en Nouvelle-Calédonie. Parrainée par l’association calédonienne pour les technologies de l’information et de la communication (ACTIC et le ministère en charge de l’économie numérique du Gouvernement de Nouvelle-Calédonie nommé depuis mai 2009, une mission d’étude a été menée depuis juin 2010 pour définir les contours d’un Observatoire numérique. A travers cette étude, il s’agissai...

  19. The Subgenus Stegomyia of Aedes in the Afrotropical Region. 1. The Africanus Group of Species (Diptera: Culicidae) (Contributions of the American Entomological Institute. Volume 26, Number 1, 1990)

    Science.gov (United States)

    1990-01-01

    BANGOURA and A. LORAND. 1979. Isolements d’arbovirus au Senegal oriental a partir de moustiques (1972-1977) et notes sur l’epidemiologie des virus...Dengue 2 au Senegal oriental: Une poussee epizootioque en milieu selvatique; isolements du virus a partir de moustiques et d’un singe et...neoafticanus une nouvelle espece de moustique capturee au Senegal Oriental (Diptera: Culicidae). Cah. O.R.S.T.O.M. Ser. Entomol. Med. Parasitol. 16

  20. Access. Challenge for Change/Societe Nouvelle Number Eleven.

    Science.gov (United States)

    Prinn, Elizabeth, Ed.

    Access is a journal published three or four times a year by Challenge for Change/Societe Nouvelle (CCSN). CCSN is an experimental program established by the Government of Canada as a cooperative effort between the National Film Board of Canada and certain of the Government's departments. Its purposes are to improve communications, create greater…

  1. Access. Challenge for Change/Societe Nouvelle Number Twelve.

    Science.gov (United States)

    Prinn, Elizabeth, Ed.; Henaut, Dorothy Todd, Ed.

    This issue of Access, the journal issued periodically by Challenge for Change/Societe Nouvelle, contains two groups of articles. The first focuses upon the Skyriver Project, relating how a project was developed which used film and video tape as a means of helping Alaskan communities to assess their own needs and to advocate for themselves the…

  2. Nouvelle espèce des Syntomides (Lepidoptera Heterocera)

    NARCIS (Netherlands)

    Snellen, P.C.T.

    1886-01-01

    Quatre mâles frais et bien conservés de 58—64 millim. d’envergure. Cette nouvelle espèce, gigantesque pour une Syntomide, appartient au genre Automolis, tel qu’il a été défini par Herrich-Schäffer, dans son ouvrage »Sammlung aussereuropäischer Schmetterlinge” (p. 21); le nom est emprunté au bien

  3. Superficie Específica y Estado Vital de la Materia

    OpenAIRE

    J. Hernando Ordoñez

    1992-01-01

    Se propone reemplazar el término de materia viva por el de estado vital de la materia por considerarlo adecuado, pues la materia es la misma, lo que cambia es su estado. Se estudia la relación entre la superficie específica y el estado vital de la materia. Constante del estado vital y el valor crítico de la superficie específica. Qué es la fuerza de inducción vital? Diferenciación funcional de las células. Cómo regula la unidad biológica su superficie específica? La materia que piens...

  4. Performances d'une nouvelle approche dans l'estimation au champ

    African Journals Online (AJOL)

    ACSS

    Elle possède cependant des limitations, dues à l'organisation temporaire d'une .... Performances d'une nouvelle approche dans l'estimation au champ utilisant le principe de la ... différents types de résidus (soja, luzerne, haricot et maïs) et ...

  5. Applications of Qualitative Microanalysis to the Determination of Secondary Species Associated with Uranium; Application de la microanalyse qualitative a la determination des especes secondaires d'uranium

    Energy Technology Data Exchange (ETDEWEB)

    Agrinier, H

    1959-02-01

    Microanalytical techniques are described which allow rapid determinations of secondary species associated with uranium. They consist in exposing the constituent elements of the ores by means of characteristic microchemical reactions. Because of their rapidity and the small amount of apparatus needed, these techniques can be used either in the field or in the laboratory. (author) [French] Les techniques de microanalyse decrites dans cet ouvrage permettent la determination rapide des especes secondaires d'uranium. Elles consistent a mettre en evidence les elements constitutifs des mineraux par des reactions microchimiques caracteristiques. En raison de leur rapidite et du peu de materiel qu'elles necessitent, ces techniques peuvent etre utilisees aussi bien sur le terrain qu'au laboratoire. (auteur)

  6. Toxoplasmose : une nouvelle approche vaccinale à base de nanoparticules d’amidon donne des résultats prometteurs

    OpenAIRE

    Le Rouzic, Jacques

    2015-01-01

    Pour lutter contre la toxoplasmose chez les ovins, des chercheurs de l’INRA, de l’Université de Tours et de la Faculté de Médecine de Lille ont développé une nouvelle approche vaccinale, utilisant des nanoparticules d’amidon et une administration par voie muqueuse. Cette approche ouvre de nouvelles perspectives vers des vaccins plus sûrs et plus efficaces.

  7. La viticulture bio, une nouvelle modernité

    OpenAIRE

    Raphaël Schirmer

    2004-01-01

    Les difficultés d'expansion de la viticulture biologique en France proviennent avant tout de la rupture conséquente qu'elle introduit en ce qui concerne notre rapport à l'espace. La place de l'agriculteur dans la société est refondée, les paysages tels que nous les entendions sont bouleversés. Il semble bien qu'une nouvelle modernité soit en train de se développer, à côté de tant d'autres il est vrai.

  8. Une nouvelle vision pour AfricaAdapt – Entrevue avec Moussa Na ...

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

    24 févr. 2011 ... Réseau panafricain lancé en mai 2009, AfricaAdapt vient de recevoir le feu vert pour l'exécution d'une nouvelle phase d'activités de deux ans, qu'appuie le programme Adaptation aux changements climatiques en Afrique.

  9. Vegetative rhythm of some woody species; Rythmes de vegetation de quelques especes ligneuses

    Energy Technology Data Exchange (ETDEWEB)

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

    1965-07-01

    In laboratory conditions from march 1963 to april 1964, variations of calcium absorption by roots and translocation speed towards aerial parts of young norway spruce (Picea excelsa) in hydroponic growing, present fixed stages in a vegetative cycle: 1. from early april until end may a rapid rising of minerals from roots to young parts of the tree, associated with a redistribution of calcium formerly fixed in tissues; 2. in June-July, an equilibrium in mineral exchanges between the different parts of the tree; 3. from early august to end of October, a pre-dormancy phase marked by a slowing of translocation; 4. in november-december, an absolute dormancy period; 5. from January to march, a post-dormancy phase in which root absorption and translocation to aerial parts recover. In outdoors conditions and for a determined climate these stages start and end on dates linked to species and variety: - in Grenoble, absolute dormancy starts in September for thuyas, early October for maple-trees, middle October for norway spruce and novembers for poplars. (authors) [French] De mars 1963 a avril 1964, les variations de l'absorption radiculaire des sels de calcium et de leur vitesse de transport vers les parties aeriennes de jeunes epiceas (Picea excelsa) en culture hydroponique, au laboratoire, montrent cinq phases distinctes dans un cycle vegetatif: 1. du debut avril a la fin mai, une phase de montee rapide des sels mineraux depuis les racines jusqu'aux parties jeunes de l'arbre, associee a une redistribution des sels de calcium deja fixes dans les tissus; 2. en juin, juillet une phase d'equilibre dans les echanges mineraux entre les differentes parties de l'arbre; 3. du debut aout a la fin octobre une phase de pre-dormance caracterisee par un ralentissement progressif de la vitesse de transport; 4. en novembre et decembre, une phase de dormance absolue; 5. de janvier a mars une phase de post-dormance au cours de laquelle l'absorption radiculaire et le transport vers les parties

  10. Discours rationnel vs discours passionnel. Analyse sémiotique d’un fragment de la Nouvelle Héloïse

    Directory of Open Access Journals (Sweden)

    Alexandrina Mustăţea

    2007-05-01

    Full Text Available Roman sentimental, La Nouvelle Héloïse double son parcours narratif d’un parcours émotionnel et sensoriel qui dessine ce que l’on pourrait nommer la configuration passionnelle de l’ensemble textuel. Roman épistolaire, La Nouvelle Héloïse situe le foyer de la passion dans le corps même du scripteur de la lettre, à la fois être du monde sensible et instance discursive.

  11. Régler les conflits locaux en Amérique latine : de nouvelles ...

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

    Au cours de la dernière décennie, les conflits locaux se sont répandus dans toute ... conjuguées à de nouvelles façons de concevoir la nature des conflits locaux. ... En partenariat avec l'Organization for Women in Science for the Developing ...

  12. Nouvelles de l'Italie sur la linguistique et l'education

    Directory of Open Access Journals (Sweden)

    Raffaele Simone

    1984-12-01

    Full Text Available L'auteur donne. des informations sur l'état actuel des débats concernant le développement du langage dans l'école italienne d'aujourd'hui, et prop6se U:ne "nouvelle" notion de linguistique appliquée, considérée en tant que confrontation de systèmes de sens, plutôt de systèmes de formes.

  13. La hernie ombilicale africaine : nouvelle classification et revue de 30 ...

    African Journals Online (AJOL)

    L'objectif de ce travail était de proposer une nouvelle classification de la hernie ombilicale de l'enfant africain et d'évaluer les résultats du traitement chirurgical.Il s'agit d'une étude prospective portant sur 30 patients porteurs de hernie ombilicale, qui s'est déroulée sur une période de un an et demi dans les services de ...

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

    African Journals Online (AJOL)

    Hilaire

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

  15. Une nouvelle vision de la transition en Syrie | CRDI - Centre de ...

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

    Une nouvelle vision de la transition en Syrie. 07 juin 2016. Bénéficiaire : Syrian Center for Political and Strategic Studies (SCPSS) Période visée : de juillet 2012 à août 2013. État : en cours de clôture. Financement accordé : 441 000 CAD. La Coalition nationale syrienne a officiellement donné son aval à une feuille de route ...

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

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

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

  17. Une Cyathura cavernicole nouvelle de Sarawak – Kalimantan du Nord (Isopoda, Anthuridae)

    NARCIS (Netherlands)

    Andreev, Stoitze

    1982-01-01

    A l’occasion d’une expédition spéléologique effectuée en 1978 à Sarawak et organisée par la Royal Geographical Society, le biospéléologue anglais Dr. Ph. Chapman a recueilli quelques exemplaires d’un Isopode des eaux douces souterraines, appartenant à une nouvelle espèce du genre Cyathura. La

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

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

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

  19. La « nouvelle modernité » urbaine.

    Directory of Open Access Journals (Sweden)

    Alexis Salanson

    2003-01-01

    Full Text Available Président du conseil scientifique de l'Institut « Pour la ville en mouvement » et professeur à l'Institut français d'urbanisme (Paris 8, François Ascher résume dans cet ouvrage les thèses qu'il a défendues tout au long de ses précédentes publications 1  : la société dans laquelle nous vivons s'éloigne irrémédiablement de ce qu'elle fut pendant la révolution industrielle pour basculer dans une « nouvelle modernité ». Celle-ci conduit à repenser ...

  20. NOUVELLES PERSPECTIVES EN ONCOLOGIE MEDICALE MEDECINE MOLECULAIRE ET SES PERSPECTIVES

    Directory of Open Access Journals (Sweden)

    Jean-Yves BLAY

    2017-05-01

    Full Text Available La médecine  moléculaire du cancer  s’appuie sur l’identification d’anomalies génomique de  l’ADN des cellules tumorales, permettant de guider le traitement des patients, en choisissant des inhibiteurs agissant sur les protéines mutées codées par les gènes mutés. Cependant, on assiste depuis 10 ans à l’émergence très rapide d’un nouveau corpus de connaissance décrivant les anomalies génomiques des cellules cancéreuses au sein des programmes internationaux  comme ICGC ou TCGA, permettant de déboucher sur de nouvelles classifications nosologiques mais démontrant aussi l’extrème  complexité et variabilité clonale des cellules cancéreuses  chez le patient humain. Il s’agit désormais d’utiliser ces données  nouvelles de manière  efficace. Ceci requiert la constitution de plateformes de diagnostic  explorant progressivement avec  une plus grande profondeur  les anomalies moléculaire de chaque patient individuel, et l’organisation de réunions de concertation pluridisciplinaires moléculaire permettant d’intégrer ces données au contexte  clinique et global du patient, et requérant la  contribution  croissante des bio-informaticiens. Ce  court article  fait le point  sur l’évolution de cette médecine moléculaire.

  1. DESIGNOR: une méthode nouvelle d'aide à la conception des produits industriels

    OpenAIRE

    Choffray, Jean-Marie

    1980-01-01

    Cet article présente une méthode nouvelle, appelée DESIGNOR, d'aide à la décision marketing. Son objectif est d'accroître la créativité au cours du processus de développement d'un nouveau produit industriel et de réduire les risques d'échec commercial.

  2. Description d’une espèce nouvelle du genre Ectatorhinus (Coleoptera: fam. Curculionidae)

    NARCIS (Netherlands)

    Roelofs, W.

    1890-01-01

    Monsieur Neervoort van de Poll ayant reçu récemment avec d’autres insectes une nouvelle espèce d’ Ectatorhinus, capturée dans l’intérieur de Bedagei (Deli, Sumatra orient.) par M. J. Z. Kannegieter, m’a invité de la décrire, ce que je fais avec d’autant plus de plaisir que j’avais décrit dans le

  3. LE SENTIMENT DE LA NATURE DANS LA NOUVELLE HELOISE DE ROUSSEAU

    OpenAIRE

    YÖNTEN, Yrd.Doç.Dr.Uğur

    2002-01-01

    Yrd.Doç.Dr.Uğur YÖNTEN D.Ü.Eğitim Fakültesi Fransız Dili Eğitimi A.B.D Bu çalışmamızda Jean-Jacques Rousseau'nun Julie ou La Nouvelle Héloïse (Julie Ya da Yeni Héloïse) adlı romanında "doğa tutkusunu" incelemeye çalıştık. Romandaki doğa yansımalarını ele almadan önce yazardaki bu duygunun nasıl ve ne zam...

  4. Le méga-fichier TES dans une nouvelle architecture de surveillance

    OpenAIRE

    Vitalis, André

    2017-01-01

    La récente création du méga-fichier biométrique TES de tous les Français, répond, même s’il n’est pas mis en avant, à un souci sécuritaire. Si l’on veut véritablement comprendre les raisons et la portée de cette création, il faut la replacer dans la nouvelle architecture de surveillance en cours de construction depuis plus d’une décennie.

  5. LHC 2008 lectures "Une nouvelle vision du monde"

    CERN Multimedia

    2008-01-01

    The history of the science of the Universe and the science of matter have been marked by a small number of "revolutions" that have turned our understanding of the infinitesimally large and the infinitesimally small on its head. New ways of looking at the world have come about sometimes through conceptual advances and sometimes through innovations in scientific instrumentation. How do things stand at the beginning of the 21st century? Will today’s large-scale machine projects like the LHC and gravitational wave detectors pave the way for a new scientific revolution? Thursday, 15 May 2008 at 8.00 p.m. Une nouvelle vision du monde Jean-Pierre Luminet, Research Director at the CNRS The Globe, first floor No specialist knowledge required. Entrance free. To reserve call + 41 (0) 22 767 76 76 http://www.cern.ch/globe

  6. Living on the mall : patterning and place making in the case study of Nouvelle

    Energy Technology Data Exchange (ETDEWEB)

    Gillies-Smith, S.; Ring, H. [Martha Schwartz, Inc., Cambridge, MA (United States)

    2007-07-01

    One of the largest habitable green roofs in the New England area was designed by Martha Schwartz Inc. The green roof spans 1.5 acres of mall rooftop that will be accessible by two connected condominium towers. A condominium complex associated with the expansion of the Natick Mall entitled Nouvelle, offers a new type of housing, in which a private, residential apartment complex adjoins a suburban, upscale indoor shopping mall. There are many new opportunities to use the expansive area of the mall complex roof to function as a productive, multi-use, shared private park. As an art-based landscape architectural practice, the office has adapted bold and graphic qualities as a model for its green roof design. The Nouvelle green roof offers dynamic circulation, enjoyable social space and recreation, intersecting a continuous coverage of patterned sedum and river stone that spans an entire roofscape. The green roof demonstrates an innovative combination of intensive and extensive plantings that create a system of legible and visually pleasing patterning from above. This case study addressed these innovations and implementation challenges within the context of mall architecture and green roof technologies. In addition, it also identified the social uses of roof spaces, and the aesthetics and sustainability of patterning in intensive and extensive planting design.

  7. La nouvelle vague in polarized neutron scattering

    International Nuclear Information System (INIS)

    Mezei, F.

    1986-01-01

    Polarized neutron research, like many other subjects in neutron scattering developed in the footsteps of Cliff Shull. The classical polarized neutron technique he pioneered was generalized around 1970 to vectorial beam polarizations and this opened up the way to a ''nouvelle vague'' of neutron scattering experiments. In this paper I will first reexamine the old controversy on the question whether the nature of the neutron magnetic moment is that of a microscopic dipole or of an Amperian current loop. The problem is not only of historical interest, but also of relevance to modern applications. This will be followed by a review of the fundamentals on spin coherence effects in neutron beams and scattering, which are the basis of vectorial beam polarization work. As an example of practical importance, paramagnetic scattering will be discussed. The paper concludes with some examples of applications of the vector polarization techniques, such as study of ferromagnetic domains by neutron beam depolarization and Neutron Spin Echo high resolution inelastic spectroscopy. The sample results presented demonstrate the new opportunities this novel approach opened up in neutrons scattering research. (orig.)

  8. Tratamento de fobia específica por dessensibilização e reprocessamento por meio dos movimentos oculares

    OpenAIRE

    Lopes, Catarina de Castro; Barbosa, Maria Raquel; Carvalho, Sónia Cortinhas

    2013-01-01

    Resumo: A fobia específica é caracterizada pela presença de um medo persistente e recorrente que é excessivo e irracional a um objeto ou situação específica que desencadeia uma forte reação de ansiedade. Diversos estudos têm sido realizados com intuito de avaliar a eficácia da dessensibilização e reprocessamento através dos movimentos oculares (EMDR), e tem sido comprovado que é um método bem-sucedido para tratamento de fobia específica, ansiedade, depressão, traumas e queixas somáticas. O ca...

  9. La banque de la Nouvelle-Calédonie. Existence éphémère, expérience oubliée (1874-1877)

    OpenAIRE

    Buttet, Catherine

    2009-01-01

    La Nouvelle-Calédonie, colonie pénale peu peuplée, était en 1870 tributaire des commerçants et du Trésor public pour l'ensemble des opérations bancaires. Née d'une société de colonisation d'initiative privée, la Banque de la Nouvelle-Calédonie fut une expérience distincte des anciennes banques coloniales et dont le nouveau cadre statutaire servit ensuite à la Banque d'Indochine. La banque reçut l'aval du gouvernement sous la forme d'une autorisation puis d'un privilège. Rapidement, la banque ...

  10. Nematodes parasites de quatre especes de Carangoides (Osteichthyes: Carangidae) des eaux de Nouvelle-Caledonie, avec description de Philometra dispar n. sp. (Philometridae)

    Czech Academy of Sciences Publication Activity Database

    Moravec, František; Gey, D.; Justine, J.-L.

    2016-01-01

    Roč. 23, Sep 12 (2016), č. článku 40. ISSN 1252-607X R&D Projects: GA ČR(CZ) GBP505/12/G112 Institutional support: RVO:60077344 Keywords : parasitic nematode * new species * marine fish * New Caledonia * South Pacific Subject RIV: EG - Zoology Impact factor: 2.545, year: 2016

  11. La nouvelle bourgeoisie islamique. Le modèle turc, de Dilek Yankaya

    OpenAIRE

    Lelandais, Gülçin Erdi

    2016-01-01

    De nombreux travaux sur la Turquie contemporaine ont été réalisés ces dernières années en France. La plus grande partie d’entre eux se focalise sur le champ politique et ses évolutions, les minorités ethniques — notamment les Kurdes –, et sur des mobilisations sociales, politiques et environnementales comme la mobilisation autour du parc Gezi. Le livre de Dilek Yankaya ouvre un nouveau champ d’analyse avec sa recherche, pionnière en son genre en France, qui étudie l’émergence d’une nouvelle é...

  12. Fobia específica: um estudo transversal com 103 pacientes tratados em ambulatório

    OpenAIRE

    Terra,Mauro Barbosa; Garcez,Joana Presser; Noll,Betina

    2007-01-01

    OBJETIVOS: Este estudo tem por objetivo investigar a presença de fobia específica (FE) entre pacientes atendidos em um ambulatório de psiquiatria. MÉTODOS: Foi realizado um estudo transversal, no qual foi aplicado o SCID-I em 103 pacientes, para se examinar a ocorrência de fobia específica. Os dados foram analisados por meio de medidas descritivas e mediante os testes de independência baseados na estatística qui-quadrado de Pearson ou no teste exato de Fisher. RESULTADOS: Foi verificada FE em...

  13. Riqueza específica de vertebrados en un bosque reforestado del Parque Nacional Nevado de Toluca, México Species richness of vertebrates in a reforested woodland of the Nevado de Toluca National Park, Mexico

    Directory of Open Access Journals (Sweden)

    Jessica Mariana Sánchez-Jasso

    2013-03-01

    Full Text Available Este trabajo documenta la riqueza específica de vertebrados de un bosque reforestado del Parque Nacional Nevado de Toluca (PNNT Estado de México, México. Se identificaron 85 especies totales, de las cuales 24 especies son endémicas de México, 14 especies se encuentran en alguna categoría de riesgo de acuerdo con la NOM-059 (SEMARNAT, 2010 y 3 especies en la lista roja de la UICN. Aun cuando la zona de estudio representa apenas el 0.42% de la superficie total del PNNT, la riqueza de vertebrados encontrada constituye el 11.37% de la riqueza total en el Estado de México, lo cual destaca la importancia de este espacio y una urgente necesidad de establecer estrategias de manejo que garanticen la conservación de las especies y su hábitat.This paper documents the richness of vertebrates in reforested woodlands inside the Nevado de Toluca National Park, State of Mexico, Mexico. A total of 85 species were identified, of which 24 species are endemic to Mexico, 14 species are in some risk category according to NOM-059-SEMARNAT-2010 and 3 species in the IUCN Red List. Even though the study area accounts for 0.42% of the total area of the Nevado de Toluca National Park, the richness of vertebrates in this area includes 11.37% of the total richness in the State of Mexico, highlighting the importance of the area and an urgent need to establish management strategies for its conservation.

  14. The Function of the Medieval in Jean-Jacques Rousseau's Nouvelle Heloise : A Rereading of the Abelard and Heloise Motif

    NARCIS (Netherlands)

    Montoya, Alicia C.

    2010-01-01

    Jean-Jacques Rousseau's critical rewriting in his Nouvelle H,lo

  15. Qui sera le nouvel Einstein ? Vers une nouvelle theorie de la gravitation

    Science.gov (United States)

    Bonnet-Bidaud, J. M.

    1999-10-01

    Un debat de plus d'un siecle a resurgi ces toutes dernieres annees avec une vigueur nouvelle. L'enjeu ? Mettre fin, ni plus ni moins, a l'une des contradictions les plus inouies de la physique fondamentale, en reconciliant mecanique quantique et relativite generale. En effet, a l'heure ou la gravitation semble enfin sur le point de fusionner avec les trois autres forces de la nature. il est certain que la relativite d'Einstein doit etre bientot remplacer par une autre theorie... Reste quye tous les physiciens sont loin de s'accorder sur la marche a suivree. Gravitation quantique, relativite d'echelle, supersymetrie, les candidates ne manquent pas.

  16. L’hybridation interspécifique chez les champignons phytopathogènes à l’origine de nouvelles maladies

    OpenAIRE

    Frey, Pascal

    2009-01-01

    Mécanisme évolutif bien connu chez les plantes, l’hybridation interspécifique a été relativement peu étudiée dans certains groupes taxonomiques, comme les champignons. Chez les champignons phytopathogènes, l’hybridation entre une espèce indigène et une espèce exotique peut pourtant conduire à l’émergence de nouvelles maladies des plantes.

  17. Contribution to the study of recoil species produced by potassium ferrocyanide neutron irradiation; Contribution a l'etude de la reactivite des especes de recul dans le ferrocyanure de potassium irradie aux neutrons thermiques

    Energy Technology Data Exchange (ETDEWEB)

    Meriadec Vernier de Byans, B. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1969-04-01

    The chemical species produced by potassium ferrocyanide neutron irradiation were separated and identified. The study of their behaviour upon thermal annealing has allowed to establish a scheme of reaction as well as a kinetic treatment of the data. Activation energies are determined in different conditions and the effects of radiation dose, oxygen and water of crystallisation upon the activation energies were studied. Preliminary E.S.R. data and its relevance to the decomposition process is also discussed. (authors) [French] On a separe et identifie les differentes especes chimiques produites par irradiation neutronique de ferrocyanure de potassium. L'etude de leur comportement au cours du recuit thermique a permis l'application de differentes cinetiques et l'etablissement d'un schema de reaction. On a deterrmine la valeur des energies d'activation dans differentes conditions de recuit ainsi que l'influence de la dose de radiations, de l'oxygene et de l'eau de cristallisation sur ces energies. Une serie de mesures de resonance paramagnetique electronique a complete cette etude. (auteurs)

  18. Crenicichla tigrina, Une nouvelle espèce de cichlidae (Pisces, Perciformes) du Rio Trombetas, Pará, Brésil

    NARCIS (Netherlands)

    Ploeg, Alex; Jégu, Michael; Ferreira, Efrem

    1991-01-01

    Une nouvelle espèce de Cichlidae, Crenicichla tigrina, est décrite et illustrée. La coloration sur le vivant et quelques remarques relatives à l’Pecologie de cette espèce sont présentée. Les relations de C. tigrina avec les autres espèces de Crenicichla à petites écailles et le mode de distribution

  19. Entre Classicisme et Modernité : La Nouvelle Revue Française dans le champ littéraire de la Belle Epoque

    NARCIS (Netherlands)

    Koffeman-Bijman, M.N.

    2003-01-01

    The literary review La Nouvelle Revue Française enjoys an enormous prestige in France. In Entre Classicisme et Modernité, Maaike Koffeman explores the origins of this legend of French literary life by means of a historical, literary and sociological analysis of the first years of the review s

  20. Karl Polanyi, la Nouvelle sociologie économique et les forces du marché

    Directory of Open Access Journals (Sweden)

    Ronan Le Velly

    2008-12-01

    Full Text Available Cet article montre en quoi plusieurs auteurs de la Nouvelle sociologie économique tendent à adopter un regard incomplet sur les forces du marché. Pour cela, l’auteur distingue deux notions d’encastrement renvoyant pour la première à un cadre méthodologique institutionnaliste et pour la seconde à l’observation du poids variable des forces du marché. Il établit qu’autant des sociologues classiques comme Weber ou Polanyi ont su coupler ces deux approches, autant plusieurs travaux majeurs de la Nouvelle sociologie économique, notamment ceux de Zelizer, de Fligstein et de Biggart, adoptent la première perspective mais ne traitent que de façon partielle de la seconde. L’auteur met particulièrement en cause les objets de recherche retenus par ces derniers auteurs, dès lors que sont systématiquement privilégiées des situations où les forces du marché sont tenues à l’écart.This article shows how many authors of the New Economic Sociology tend to adopt an incomplete view of market forces. The author distinguishes two notions of embeddedness, one related to the institutionalist theories and the second to the observation of the variable weight of market forces. It is established that classical sociologists such as Weber or Polanyi have joined these two approaches, while manyu works of the New sociological economy, for examle those of Zelizer, Fligstein or Biggart adopt the first perspective, but only treat the second partially. The author particularly questions the research objects chosen by these authors, since he considers that they generally refer to situations where market forces are held at bay.

  1. La nouvelle donne de la santé globale : dynamiques et écueils

    Directory of Open Access Journals (Sweden)

    Marine Buissonnière

    2012-04-01

    Full Text Available Les quinze dernières années ont été marquées par l’avènement de nouveaux acteurs dans le champ de la santé globale et l’augmentation de l’aide au développement en faveur de la santé. Ces acteurs ont capté une partie importante des ressources privées et publiques supplémentaires disponibles et se sont imposés comme les pièces maîtresses de ce nouvel échiquier, aux dépens des institutions traditionnelles qui ont graduellement perdu leur prépondérance et ont vu leur leadership s’affaiblir. Les choix et politiques de santé ont peu à peu échappé à la seule autorité des institutions qui en avaient jusqu’alors le mandat et en assumaient la charge. Certains pans entiers de la santé sont désormais dominés par des financeurs privés, devenus de facto prescripteurs d’orientations de santé publique. Cette nouvelle donne pose des questions essentielles de gouvernance et de responsabilité. Qui décide des orientations ? Comment les décisions sont-elles prises ? Les pays destinataires de l’aide doivent encore trop souvent subir le manque de coordination des donateurs et l’absence d’alignement des agendas. Dans ce contexte, et en prenant acte de cette nouvelle réalité, quelques pistes mériteraient d’être explorées afin de garantir que les orientations en matière de santé globale reflètent au mieux la réalité des besoins et les aspirations des pays.

  2. How the Nouvelle Vague Invented the DVD: Cinephilia, new waves and film culture in the age of digital dissemination

    Directory of Open Access Journals (Sweden)

    Malte Hagener

    2014-01-01

    Full Text Available Whereas the currently emerging configurations of audiovisualcy in the age of digital networks are often addressed in terms of absolute novelty and innovation, this article wishes to shift the focus slightly, articulating instead the new in terms of the old. This essay proposes the argument that it was within the Nouvelle Vague and the French film culture of the 1960s that the DVD was “invented”. Obviously, this is a contrafactual argument, but if we understand the DVD as a discursive construction articulating a specific perspective on film, then the DVD simulates and emulates some key features of 1960s cinephilia that emerged within the context of the new waves. On the other hand, the Nouvelle Vague is understood as a broad discursive movement encompassing all segments of the institution cinema rather than five auteur-directors — Truffaut, Godard, Chabrol, Rohmer and Rivette — and their respective films. By arguing for the continuing importance of film history and culture, this article wishes to underline the fact that technological as well as aesthetic transformations are central to our understanding of media culture.

  3. Instrumentos específicos para avaliar a qualidade de vida em crianças e adolescentes com asma

    OpenAIRE

    Cristian Roncada; Rita Mattiello; Paulo M. Pitrez; Edgar E. Sarria

    2013-01-01

    OBJETIVO: Identificar e descrever os instrumentos específicos que avaliam a QVRS de crianças e adolescentes com asma. FONTES DOS DADOS: Realizamos buscas nas bases de dados PubMed, Ovid e LILACS utilizando várias combinações de descritores (MeSH terms), selecionando artigos originais sobre desenvolvimento de questionários específicos de QVRS, publicados em inglês, português ou espanhol, entre 1990 e 2012. SÍNTESE DOS DADOS: Foram identificados 15 instrumentos que preencheram os critérios de i...

  4. Funcionamiento neurocognitivo global y específico en niños y adolescentes con infección VIH

    OpenAIRE

    Martos Nicio, Patricia

    2013-01-01

    Introducción: la enfermedad VIH y el SIDA pediátrico, presentan características específicas y diferentes a las del adulto. La infección VIH en los niños se produce en una etapa temprana afectando a varios sistemas en desarrollo, entre ellos, el sistema nervioso central (SNC). Es por ello que las manifestaciones neurológicas y alteraciones neurocognitivas asociadas a dicha infección, son frecuentes en ausencia de tratamiento específico. En los últimos años la introducción del Tratamiento AntiR...

  5. The Mosquitoes of the Subgenus Culex in Southwestern Asia and Egypt (Diptera: Culicidae) (Contributions of the American Entomological Institute. Volume 24, Number 1, 1988)

    Science.gov (United States)

    1988-01-01

    Pathol. Exot. 53: 531-542. 1968. Contribution a I’etude des moustiques du Maroc (Diptera, Culicidae) six especes nouvelles pour le pays. Cah. ORSTOM...quelques moustiques du Maroc. Arch. inst. Pasteur Maroc 2: 361-365. 1957. Sur Culex torrentium Martini. Ann. Parasitol. Hum. Comp. 32: 438-442...De Grandpre, A.D. and D. D’E. De Charmoy 1900(1901). Les moustiques : anatomie et biologie. Contribution a I’etude des Culicides et principalement

  6. La incidencia de la pragmática en el francés para fines específicos

    Directory of Open Access Journals (Sweden)

    José Ruiz Moreno

    2011-04-01

    Full Text Available Normal 0 21 false false false ES X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Las relaciones conceptuales y prácticas entre la pragmática y el francés para fines específicos, y por extensión entre ésta y cualquier lengua para fines específicos, son abundantes y dignas de resaltarse. Las características más relevantes, tanto lingüísticas como didácticas del francés para fines específicos, tienen que ver con dos componentes preeminentes que son los usuarios de la lengua y el acto comunicativo, dos componentes que son a su vez fundamentales para la pragmática en la medida en que ésta estudia el lenguaje en acción. Nuestros objetivos en este artículo son dos; en un primer momento, realizamos diversas consideraciones teóricas explicativas de la ciencia pragmática que puedan servimos para una mejor comprensión del francés para fines específicos; en segundo lugar, intentamos clarificar de qué manera la pragmática incide en los mecanismos de enseñanza del francés para fines específicos.

  7. Riscos ocupacionais em UTI: proteção específica

    Directory of Open Access Journals (Sweden)

    Maria da Natividade Abreu da Costa

    1989-12-01

    Full Text Available Aponta os riscos ocupacionais que a equipe multiprofissional se expõe diariamente. Na tentativa de minimizar os riscos existentes são traçadas medidas de proteção especffica que se estendem desde a planta física ao preparo técnico dos funcionários. São utilizadas como variáveis o trinomio ambiente/paciente/equipe de enfermagem, relacionando assim os riscos e a proteção específica.

  8. Le programme ARTEMIS : nouvel outil pour la datation radiocarbone AMS (Spectromètre de Masse par Accélérateur et nouvelles problématiques

    Directory of Open Access Journals (Sweden)

    Cyrille Billard

    2012-04-01

    Full Text Available La mise en route du nouvel équipement ARTEMIS (Accélérateur pour la Recherche en sciences de la Terre, Environnement, Muséologie, Implanté à Saclay à partir de 2004 ouvre de nouvelles perspectives scientifiques et conduit à de nouvelles procédures de soumission des échantillons destinés à une datation 14C. Le MCC dispose aujourd’hui de droits alloués aux services régionaux de l'archéologie, services du ministère de la Culture, confrontés à ce type de demandes (musées, monuments historiques. Il impose désormais une nouvelle démarche de programmation scientifique des datations, associant une analyse critique des demandes.Since 2004, the availability at Saclay of a new ARTEMIS installation (Accélérateur pour la Recherche en sciences de la Terre, Environnement, Muséologie has opened new scientific perspectives and led to new procedures for submitting samples for carbon-14 dating. The French Ministry of Culture has the possibility of using this tool for radiocarbon dating at the request of its regional archaeological services or other services, such as museums and the historic monuments administration. This use now implies a new approach to the scientific planning for dating problems, associated with a critical analysis of the requests.

  9. Relation de service, rapport social de service : Quelle grille d’analyse ? Analysing service relationships and service-based social relationships. Debate with the editors of the Nouvelle Revue du Travail Relación de servicio, vínculo social de servicio: ¿qué modelo analítico? Debate con la redacción de la Nouvelle Revue du Travail

    Directory of Open Access Journals (Sweden)

    Guillaume Tiffon

    2013-03-01

    Full Text Available Dans un échange avec la Nouvelle Revue du Travail, Pascal Ughetto et Philippe Zarifian prolongent la controverse sur les grilles d’analyse des services, en discutant les pré-requis sur lesquels reposent leurs postures respectives. Ce débat fait suite à leurs contributions dans le dossier Controverses de ce numéro « Relation de service, rapport social de service. Quelle grille d’analyse ? »In a conversation with the Nouvelle Revue du Travail, Pascal Ughetto and Philippe Zarifian address the controversy about service-related analytical grids, by focusing on the preconditions underlying each grid’s particular orientation. The debate follows their contributions to the Controverses special section found in a special issue called “Analysing service relationships and service-based social relationships”En una conversación con la Nouvelle Revue du Travail, Pascal Ughetto y Philippe Zarifian prolongan la controversia sobre los modelos analíticos de los servicios, debatiendo sobre los prerrequisitos en los cuales se apoyan sus respectivas posturas. Ese debate ha surgido tras sus contribuciones al número especial Controverses de esta edición “Relación de servicio, vínculo social de servicio. ¿Qué modelo analítico ?

  10. Isotopic exchange between molecular hydrogen and liquid ammonia catalysed by alkali amides; Echange isotopique entre l'hydrogene moleculaire et l'ammoniac liquide catalyse par les amidures alcalins

    Energy Technology Data Exchange (ETDEWEB)

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

    1968-06-15

    The catalytic action of alkali amides on the isotopic exchange between hydrogen and liquid ammonia has been reinvestigated. It was clear before this work that the reaction is homogeneous and first order with respect to the concentration of dissolved hydrogen, but the nature of the catalytic species was still subject to discussion. On one hand new precise kinetic measurements have been made with sodium, potassium, rubidium and cesium amide. On the other hand, the dissociation of these salts has been calculated with the help of the FUOSS-ONSAGER equation. If the rate of exchange is plotted as a function of the concentration of the free amide ion, a linear relationship is obtained. In our experimental conditions, primary salt effects are negligible and the concentration has to be used in the rate equations. This shows that only the free amide ion is acting as a catalytic species. Experiments on common ion effects and secondary salt effects support this conclusion. The results are in agreement with an associative mechanism. (author) [French] Une nouvelle etude de l'echange isotopique entre l'hydrogene et l'ammoniac liquide catalyse par les amidures alcalins a ete effectuee. II etait bien etabli avant le present travail que la reaction etait homogene et que sa vitesse etait du premier ordre par rapport a la concentration d'hydrogene dissous, mais la nature de l'espece catalytique etait encore controversee. De nouvelles mesures cinetiques precises ont ete faites avec les amidures de sodium, de potassium, de rubidium et de cesium. D'autre part, la dissociation de ces sels a ete calculee a l'aide de l'equation de FUOSS-ONSAGER. On constate que la vitesse d'echange est proportionnelle a la concentration de l'ion amidure libre. Dans nos conditions experimentales, les effets de sel primaires sont negligeables, l'equation de vitesse doit s'exprimer simplement en fonction des concentrations. Ceci indique que l'ion amidure libre est la seule espece catalytique. Des experiences d

  11. Revisión sistemática de intervenciones comunitarias sobre actividad física en grupos específicos.

    OpenAIRE

    Gladys Espinosa; John Duperly; Gustavo Alonso Cabrera; Olga Lucía Gómez

    2009-01-01

    Objetivo. Documentar el desarrollo de intervenciones comunitarias dirigidas a promocionar la actividad física en grupos específicos. Materiales y métodos.Se realizó una revisión sistemática de intervenciones comunitarias para promocionar la actividad física en grupos específicos. Se revisaron las experiencias publicadas en artículos científicos desde enero de 1990 en las bases Lilacs, PubMed, Scientific Electronic Library on Line (SciELO). Resultados. De 30 intervenciones identificadas en la ...

  12. Une Nouvelle Orientation Psychophysique dans la Pédagogie Théâtrale Contemporaine

    Directory of Open Access Journals (Sweden)

    Vezio Ruggieri

    2015-09-01

    Full Text Available Cet article a pour but de présenter comment les apports du modèle psychophysiologique bio-existentialiste élaboré par Vezio Ruggieri et ses collaborateurs peuvent jeter une lumière nouvelle sur les processus sous-jacents le jeu de l’acteur tels que la présence scénique, le processus d’identification avec un personnage et le complexe mécanisme de la prosodie. Cet encadrement théorique, qui voit le rapport corps-esprit dans une relation circulaire, éclairera le lecteur sur les bases physiologiques de la perception et de l’imagination ainsi que sur le rôle fondamental que la structure musculaire joue dans la construction de ces phénomènes.

  13. Teorías subjetivas de profesionales de escuelas de lenguaje en chile sobre el trastorno específico del lenguaje

    Directory of Open Access Journals (Sweden)

    Luise von Keyserlingk

    2013-08-01

    Full Text Available OBJETIVO: comprender y reconstruir las teorías subjetivas de profesionales de escuelas de lenguaje en Chile, sobre las causas y el tratamiento del trastorno específico del lenguaje. MÉTODO: se utilizó métodos cualitativos para recolectar datos en profundidad. Se realizó entrevistas individuales semi-estructuradas con una muestra de cuatro fonoaudiólogas (logopedas y cuatro educadoras diferenciales de cuatro escuelas de lenguaje. Se grabó y transcribió las entrevistas, las que fueron analizadas con el programa informático Atlas.ti 5.0. Los resultados del análisis relacional se sintetizaron en tres modelos. RESULTADOS: para las fonoaudiólogas y educadoras diferenciales las causas principales del trastorno específico del lenguaje son factores sociales, originados en la familia de los niños afectados. Con respeto a la superación de este trastorno las entrevistadas destacaron con alta importancia el apoyo familiar para un tratamiento eficaz. CONCLUSIONES: entre las explicaciones subjetivas de las profesionales entrevistadas y las explicaciones científicas acerca las causas del trastorno específico del lenguaje, existen diferencias. Mientras las entrevistadas hablan de causas sociales, los enfoques científicos explican este trastorno por causas biológicas. Esta diferencia debería ser investigada en estudios posteriores. Las fonoaudiólogas y educadoras diferenciales ven la familia del niño como una de las causas principales del trastorno específico del lenguaje y al mismo tiempo consideran el apoyo familiar como un requisito crucial en el tratamiento. En la opinión de los profesionales de las escuelas de lenguaje el trastorno específico del lenguaje es un trastorno superable, si escuela y familia trabajan en conjunto.

  14. 'Grenelle de l'environnement ' : peut-on se passer d'une nouvelle fiscalité écologique ?

    OpenAIRE

    Eloi Laurent; Jacques Le Cacheux

    2007-01-01

    Contrairement à ce qu'a affirmé Al Gore quand il a appris la nouvelle de son Prix Nobel de la paix, la lutte contre le changement climatique n'est pas avant tout une affaire morale, mais bien un enjeu politique, et plus précisément d'économie politique. C'est le problème des moyens, des instruments et des incitations que doit désormais poser et résoudre l'action publique, les travaux des lauréats du " Prix Nobel d'économie " pouvant d'ailleurs se révéler fort utiles dans cette optique pratiqu...

  15. Un littoral sableux en progradation : le lido entre Leucate et Port-la-Nouvelle (Aude, Golfe du Lion, France

    Directory of Open Access Journals (Sweden)

    Jean-Pierre Larue

    2009-11-01

    Full Text Available L'étude multichronique de photographies aériennes révèle que le lido entre Leucate et Port-la-Nouvelle (Aude a progradé d'environ 15 % en largeur, entre 1952 et 2008. L'analyse sédimentologique permet de montrer que cette progradation exceptionnelle en période d'élévation du niveau marin est due à la présence de barres pré-littorales volumineuses et bien alimentées par la dérive littorale et le transport éolien effectué par les vents de terre. Cependant, du fait de la montée actuelle du niveau marin (2,5 à 3 mm/an et malgré la poursuite de l'accrétion, le lido subit des inondations de plus en plus fréquentes entre le cordon actuel et l'ancien cordon romain.A kinematic study of vertical aerial photos taken between 1952 and 2008 reveals that the Leucate-Port-la-Nouvelle lido (Aude has prograded of about 15 % in width. A sedimentological analysis allows us to explain this accretion caused by drift and wind which supply abundant nearshore bars. In spite of this progradation, frequent floodings, favoured by sea level rise (2.5 to 3 mm-1.year, occur between the present coastal bar and the Roman barrier.

  16. Superficie Específica y Estado Vital de la Materia

    Directory of Open Access Journals (Sweden)

    J. Hernando Ordoñez

    1992-03-01

    Full Text Available

    Se propone reemplazar el término de materia viva por el de estado vital de la materia por considerarlo adecuado, pues la materia es la misma, lo que cambia es su estado. Se estudia la relación entre la superficie específica y el estado vital de la materia. Constante del estado vital y el valor crítico de la superficie específica. Qué es la fuerza de inducción vital? Diferenciación funcional de las células. Cómo regula la unidad biológica su superficie específica? La materia que piensa es el fenómeno más grandioso de la creación.

    Sin entrar en disquisiciones sobre la naturaleza, manifestaciones y formas de la energía, me permito hacer unas a manera de divagaciones sobre los diferentes estados de la materia, que es una forma de la energía.

    Estados de la materia

    Sabemos que la mínima porción de la materia es el átomo, que tiene una composición compleja, que no es del caso estudiar. Los átomos pueden existir aislados y estar en lo que llamamos estado iónico. Si los átomos se juntan, forman moléculas, y su existencia constituye el estado molecular. Si las moléculas se juntan, forman complejos más grandes y tendremos las micelas, que constituyen el estado coloidal.

    Hasta aquí nuestros conocimientos nos son familiares, triviales. Pero hay un estado más complejo, en el cual entra materia en estado iónico, molecular y coloidal entrelazados entre sí, con propiedades totalmente diferentes. La materia en este estado adquiere caracteres extraordinarios tales como el de crecer, reproducirse, independizarse de las leyes físicas, puede autorregular su composición química, autorregular sus manifestaciones físicas, reaccionar ante los estímulos más variados, puede llegar hasta alturas inconcebibles integrando ideas. A este estado fue al que llamé en publicación anterior (1 estado vital, concepto que fue corroborado más ‘tarde por J.R. Brown (2 cuando me coment

  17. O inventário das curiosidades botânicas da Nouvelle France de Pierre-François-Xavier de Charlevoix (1744 The inventory of botanical curiosities in Pierre-François-Xavier de Charlevoix's Nouvelle France (1744

    Directory of Open Access Journals (Sweden)

    Michel Kobelinski

    2013-03-01

    Full Text Available Verifica a extensão dos aportes botânicos de Pierre-François-Xavier de Charlevoix em Histoire et description générale de la Nouvelle France em relação a trabalhos de pesquisadores anteriores, suas valorações das representações iconográficas e discursivas e aplicabilidade no projeto de colonização francesa. Investiga-se o que o levou a preterir o modelo taxionômico de Lineu e o que pretendia com seu catálogo de curiosidades botânicas. O desenlace de sua trajetória filosófico-religiosa permite compreender seu posicionamento no quadro de classificação da natureza, os sentidos das informações etnológicas, as formas de apropriação intelectual e os usos da iconografia botânica e do discurso como propaganda político-emotiva para incentivar a ocupação colonial.The article explores the botanical contributions of Pierre-François-Xavier de Charlevoix's book Histoire et description générale de la Nouvelle France vis-à-vis the contributions of previous researchers, his use of iconographic and discursive representations and its relevance to the project of French colonization. It investigates why he refused Linnaeus' taxonomic model and what he intended with his catalogue of botanical curiosities. The unfolding of his philosophical and religious trajectory allows to understand his stance regarding the classification of nature, the meanings of ethnological information, his forms of intellectual appropriation, and his use of discourse and botanical iconography as political and emotional propaganda to encourage colonial settlement.

  18. Nouvelle procédure pour l'augmentation du temps d'usinage simulé en coupe orthogonale

    OpenAIRE

    Guediche , Mayssa; Mabrouki , Tarek; Donnet , Christophe; Bergheau , Jean-Michel; Hamdi , Hedi

    2015-01-01

    International audience; Cette étude présente une nouvelle méthodologie visant à augmenter le temps d'usinage simulé en coupe orthogonale .Le but est d'étudier ultérieurement l'évolution de l'usure des outils de coupe dans le cas de l'usinage de l'acier 42CD4. Un modèle lagrangien est donc développé sous le code de calcul ABAQUS simulant la formation du copeau. Une approche baptisée de « modélisation verticale » est développée dans le but d'augmenter le temps de coupe simulé tout en gardant un...

  19. Nouvelle méthodologie de synthèse de molécules à potentiel diurétique

    OpenAIRE

    Ouellet, Simon

    2007-01-01

    [Synthèse combinatoire ]. Le présent mémoire propose l'élaboration d'une nouvelle méthodologie de synthèse de molécules ayant un potentiel diurétique, et ciblant plus particulièrement les cotransporteurs cations-chlorures, responsables du mouvement couplé des ions sodium et/ou potassium avec celui du chlorure dans plusieurs types de cellules dont celles des néphrons. La première partie est consacrée à une description de la chimie combinatoire, aux travaux antérieurs effectués dans notre la...

  20. Le télé-achat : finalité ou usage par défaut des nouvelles convergences ?

    OpenAIRE

    Lenoir , Christophe

    2000-01-01

    HAL : hal-00558853; International audience; Le télé-achat relève-t-il d'une finalité ou d'un usage par défaut des nouvelles convergences ? A partir des questions de détermination technologique et d'indétermination des usages, cet article propose, au vu de l'évolution économique du secteur et de l'information économique véhiculée par ses agents, de s'interroger sur les conditions énonciatives de ces processus de communication et leurs conséquences sur le médium télévisuel.

  1. Tratamiento farmacológico específico en la Enfermedad de Alzheimer

    OpenAIRE

    Simón Marrodán, Roberto

    2016-01-01

    La Enfermedad de Alzheimer es un proceso neurodegenerativo que conlleva un deterioro progresivo de la memoria y de otras funciones superiores. Es el tipo de demencia más común. En el 95% de los casos afecta a personas mayores de 65 años. Se ha realizado una revisión bibliográfica narrativa utilizando bases de datos, buscadores y páginas web, con el objetivo de conocer cuál es el tratamiento farmacológico específico en la Enfermedad de Alzheimer. Las palabras clave utiliza...

  2. Tecnologie dell’informazione e nuovi processi di vittimizzazione / Nouvelles technologies et processus de victimisation / Information technologies and new processes of victimisation

    Directory of Open Access Journals (Sweden)

    Marotta Gemma

    2012-08-01

    Full Text Available New technologies, on the one hand, have produced undeniable positive effects, from the acceleration of cultural diffusion to the communication between "worlds" previously unknown; on the other hand, they have become now an instrument to commit new crimes and deviants acts.In the article we will discuss the processes of victimization related to specific offenses (digital identity theft, online paedopornography, cyberstalking and to new forms of addiction due to the new media. The aim is to highlight the dangers of the misuse or abuse of new technologies.S'il est vrai que les nouvelles technologies de communication ont produit des effets positifs indéniables, comme l'accélération de la diffusion culturelle et l'échange entre « mondes » jusque-là inconnus, elles n'en sont pas moins devenues un moyen de commettre des actes déviants et criminels nouveaux.Cet article expose les processus de victimisation liés à certains crimes (comme l'usurpation d'identité, la pédopornographie en ligne, le cyber-harcèlement, et de nouvelles formes de dépendance, afin de mettre en évidence les dangers d'un usage pervers ou délictueux des nouveaux médias.

  3. Securite, dangerosite, biopolitique: trois versants d'une nouvelle pratique de pouvoir sur les individus

    Directory of Open Access Journals (Sweden)

    Jean-François Bert

    2012-01-01

    Full Text Available Le questionnement de Foucault sur la judiciarisation des sociétés contemporaines renvoie à plusieurs controverses qui, entre 1974 et 1976, ont spécifiquement concerné la question du vivant comme de son rapport au champ du droit et des institutions politiques. Ces polémiques se sont cristallisées autour d'affaires judiciaires retentissantes mais également autour d'un discours technique et politique qui donne une place nouvelle aux notions de dangerosité, de sécurité et à la question plus générale de la gestion du vivant. Trois discours qui, pour Foucault, sont révélateur d'un profond changement de société et de mode de gouvernement des individus.

  4. Ansiedad social específica y generalizada: ¿variantes del mismo trastorno o categorías diferentes con características similares?

    OpenAIRE

    Ihab Zubeidat; Antonio Fernández-Parra; Juan Carlos Sierra; José María Salinas

    2007-01-01

    El objetivo de este estudio descriptivo transversal fue evaluar las diferencias y similitudes entre la ansiedad social específica y generalizada en una muestra de adolescentes españoles. Para ello, un total de 1.012 jóvenes fueron evaluados, en su entorno escolar, mediante una serie de pruebas que miden variables demográficas, ansiedad social, competencias psicosociales y distintos problemas clínicos. Dos grupos de ansiedad social (específica, n = 50; generalizada, n = 38) fuer...

  5. Le décodage biologique. Diffusion d’une nouvelle médecine non-conventionnelle contre le cancer Biodecoding. Dissemination of a New Unconventional Therapy against Cancer

    Directory of Open Access Journals (Sweden)

    Aline Sarradon-Eck

    2011-05-01

    Full Text Available De nouvelles médecines alternatives, regroupées sous l’appellation « décodage biologique », reposent sur une conception psychosomatique du cancer. Elles sont apparues en Europe dans les années 1990. Dans une perspective critique, l’article tente de comprendre la diffusion de ces nouvelles thérapies. S’inspirant du travail de D. Fassin sur les réseaux de l’ethnopsychiatrie, il analyse la construction d’une légitimation du décodage biologique et de ses praticiens, en décrivant les réseaux qui diffusent les théories et favorisent l’adoption de la pratique. L’article montre l’enracinement de ces nouvelles thérapies dans des représentations sociales et des modèles culturels de l’étiologie du cancer et du “faire face” à la maladie qui permettent ou renforcent l’adoption et l’appropriation de la pensée psychosomatique alternative.New alternative therapy called « bio-decoding » based on a psychosomatic perception of cancer appeared in the 1990s. Using a critical approach, the article aims to understand the therapy’s growth. Drawing on D. Fassin’s work about ethnopsychiatric networks, this paper analyses the construction of bio-decoding and bio-therapist legitimacy, by unravelling the networks which allow for theory dissemination and enable the practice’s growth. The article shows that these new therapies are deeply rooted in social and cultural models of cancer etiology and coping, which allow or reinforce approval and appropriation of alternative psychosomatic thought.

  6. Literaire strategieën: de drie satellieten van La Nouvelle Revue Française (1910-1914

    Directory of Open Access Journals (Sweden)

    Maaike Koffeman

    2000-12-01

    Full Text Available La Nouvelle Revue Française, opgericht in 1908 door een groep schrijvers rond André Gide, is het belangrijkste Franse literaire maandblad van het interbellum geweest. In de jaren voorafgaand aan de Eerste Wereldoorlog is de reputatie van het tijdschrift nog relatief bescheiden, maar er is al wel een duidelijke progressie te constateren. Deze is niet alleen toe te schrijven aan de inhoudelijke kwaliteit van de bijdragen, maar vooral ook aan de manier waaorp de redactie het tijdschrift promoot. De oprichters bedienen zich van een 'mutimedia-strategie': zij ontwikkelen rond de NRF verschillende nevenactiviteiten om de naamsbekendheid van het tijdschrift te vergroten en zijn literatuuropvattingen onder een breder publiek te verspreiden. 

  7. Superficie específica de una bentonita mediante la adsorción de azul de metileno

    OpenAIRE

    Pinzón Bello, Jorge Alejo

    2010-01-01

    Se estudió la determinación de la superficie específica de una bentonita colombiana, procedente del Valle del Cauca, mediante la adsorción de azul de metileno, a 298 K. Este método se comparó con el de la adsorción de nitrógeno a 77 K.

  8. Detección de linfocitos T citotóxicos específicos anti-53 en pacientes con cáncer de mama

    OpenAIRE

    Álvarez Busto, Iñaki; Tres Sánchez, Alejandro; Mayordomo Cámara, José Ignacio

    2009-01-01

    El gen P53 es el más frecuentemente mutado en tumores humanos ( 50%). Su proteina producto, la proteina P53, se acumula cuando sufre una mutación. Esta circunstancia posibilita su presentación al sistema inmunológico y el desarrollo de una respuesta celular específica medida por linfocitos T CD8. En este trabajo por primera vez, ha sido posible desarrollar la existencia de una respuesta inmune celular específica "in vivo" en pacientes con cancer de mama. Las implicaciones de este hallazgo par...

  9. La mosquée en Algérie.Figures nouvelles et pratiques reconstituées

    Directory of Open Access Journals (Sweden)

    Abderrahmane Moussaoui

    2012-07-01

    Full Text Available La « globalisation » des discours de la mosquée casse les frontières érigées historiquement par les différentes écoles, et tend à réduire la fracture inaugurale entre sunnisme et chiisme. Aujourd’hui il y a un retour à la Salafiya qui ne reconnaît que les fondamentaux. Tout le reste est considéré comme de l’ordre de l’historique et donc non sacré et à ce titre susceptible d’être laissé de côté ou changé. La Salafiya continue cependant à être divisée entre djâmida et djihâdiya.Les pratiques au sein de la mosquée procèdent également par pluralisation où l’individu cherche à la fois à signaler son individualité mais aussi à s’inscrire dans des tendances plus globales. Les récits de vie de différents imams laisse transparaître une sorte de sécularisation interne de la mosquée et une plus grande latitude dans la ré interprétation de l’initial.Les changements sont perceptibles également au niveau des acteurs De nouvelles figures concurrencent celle classique de l’imam. Le prédicateur, sans être une figure tout à fait nouvelle, ni une invention récente, demeure une figure réinventée. Au Maghreb, on connaît l’imam, le mufti, le taleb, mais moins le dâ`îya que les chaînes de télévision à thématique religieuse ont fini par imposer.Ce sont toutes ces transformations qui se déroulent au cœur de l’institution la plus significative de l’Islam que tente d’examiner cette contribution.

  10. El Trastorno Específico del Lenguaje: estado de la cuestión

    OpenAIRE

    Vernengo, Luciana

    2011-01-01

    Este trabajo ofrece una revisión sobre diversos estudios relativos al Trastorno Específico del Lenguaje (TEL). Dicha tema, es abordado desde diversas disciplinas de las cuales las más relevantes son la psicolingüística, la neurofisiología y la psicología. Desde la psicolingüística, se plantean dos grandes teorías sobre la causa del TEL. La primera, como consecuencia de alteraciones en el procesamiento del lenguaje; la segunda, lo concibe como un trastorno modular del lenguaje.

  11. SEMINAIRE DE L'ENSEIGNEMENT TECHNIQUE Nouvelles Technologies en Tuyauteries Multicouches - French version only

    CERN Multimedia

    Davide Vitè

    2002-01-01

    Mardi 28 mai, mercredi 29 mai 28 mai, 9:30 - 12:00 - Training Centre Auditorium, Room 11, bldg. 593 28 mai, 14:00 - 17:00; 29 mai, 9:00 - 12:00 - Training Centre Rooms 13 and 15, bldg. 593 Nouvelles Technologies en Tuyauteries Multicouches Jacques Dougoud / GEBERIT SA, Lausanne, Suisse Mario Bettini / GEORG FISCHER PFCI S.r.l., Peschiera del Garda, Brescia, Italie Christian Tacco / VALSIR S.P.A., Vestone, Brescia, Italie Depuis quelques années l'apparition de tubes multicouches a changé radicalement la conception des tuyauteries, tant pour les applications industrielles que domestiques. Les utilisations au CERN concernent pratiquement tous les fluides, c'est-à-dire eau sanitaire, eau déminéralisée, air comprimé, fluorocarbones liquides ou gazeux, et tous les gaz, depuis l'hélium jusqu'au xénon. Ce séminaire de l'Enseignement Technique est adressé à toute personne concern&eac...

  12. Superficie específica de una bentonita mediante la adsorción de azul de metileno

    Directory of Open Access Journals (Sweden)

    Jorge Alejo Pinzón Bello

    2010-07-01

    Full Text Available Se estudió la determinación de la superficie específica de una bentonita colombiana, procedente del Valle del Cauca, mediante la adsorción de azul de metileno, a 298 K. Este método se comparó con el de la adsorción de nitrógeno a 77 K.

  13. Energy and greenhouse gas profile of the Nouvelle Aquitaine region. Release 2017

    International Nuclear Information System (INIS)

    Rousset, Alain; Poitevin, Lionel; Loeb, Amandine; Philippot, Herve; Rebouillat, Lea; Jacquelin, Antoine

    2017-06-01

    This publication first proposes graphs and comments characterising final energy consumption of the Nouvelle Aquitaine region: regional situation in 2015 (analysis per sector and per energy), primary resources, social-economic analysis (energy bill, level of energy poverty, burden due to old housing and commuting for households), evolution of energy consumption between 2005 and 2015 (per sector, per source of energy, evolution of energy intensity and of the energy bill). The next part addresses greenhouse gas emissions: regional situation in 2015 (distribution in terms of emission type and per gas), evolutions between 1990 and 2015, evolutions per sector. The third part addresses renewable energies: regional situation for the different types of renewable energy, comparison with final energy consumption, comparison with national data, production evolutions, focus per sector (wood and wood by-products, heat pumps in the housing sector, urban waste valorisation units, biogas valorisation, bio-fuels, wind energy, hydroelectricity, solar photovoltaic). The last part recalls national objectives related to energy, to greenhouse gas emissions for France and for the region, in relationship with the law on energy transition and for a green growth

  14. Medida de calor específico e lei de resfriamento de Newton: um refinamento na análise dos dados experimentais

    Directory of Open Access Journals (Sweden)

    Silva Wilton Pereira da

    2003-01-01

    Full Text Available Uma das técnicas para a determinação do calor específico de sólidos e líquidos dispensa o uso de um calorímetro e utiliza a lei de resfriamento de Newton na análise dos dados experimentais. O sucesso desta técnica pressupõe que seja possível determinar, com pequenas incertezas, as temperaturas do sistema imediatamente antes e imediatamente depois das transferências internas de calor devido à imersão do corpo (dujo calor específico se deseja medir em um recipiente contendo água quente. Neste artigo é proposto um refinamento desta técnica utilizando-se dois ajustes de curvas para a função que descreve a lei de resfriamento, com pequenas extrapolações, para de determinar essas temperaturas e também as suas incertezas. Isto possibilita determinar não só o valor médio do calor específico, mas também a incerteza deste valor médio, por propagação de erros. O ajuste da própria função que descreve a lei de resfriamento aos dados possibilitou a comparação imediata dos parâmetros obtidos experimentalmente com aqueles previstos pela teoria, e há uma grande concerdânciaentre eles. A aplicaçãodeste refinamento na determinação do calor específico do alumínio indica que tal procedimento é eficaz mesmo quando se trabalha com instrumentos de baixo custo, voltados para o ensino.

  15. Tratamiento de una sesión de la fobia específica a las arañas en niños

    OpenAIRE

    Graciela Bermúdez-Ornelas; Laura Hernández-Guzmán

    2008-01-01

    Este estudio se propuso explorar el efecto del tratamiento de una sesión conductual de la fobia específica, diseñado por Öst, sobre las conductas de acercamiento y manipulación de las arañas por parte de niños con diagnóstico de fobia específica y su ansiedad, según la percepción de sus padres, una semana, tres y seis meses después del tratamiento. El estudio cuasiexperimental empleó un diseño de serie temporal interrumpida simple. Se aplicó la intervención en forma individual a 10 niños, ent...

  16. Une voix dans un chœur risque de n’être point entendue. André Gide et La Nouvelle Revue française, 1908-1914

    NARCIS (Netherlands)

    Koffeman, M.N.; Wittmann, Jean-Michel

    2017-01-01

    Cet article étudie la tension entre l’individualisme gidien et la collectivité littéraire que forme la première Nouvelle revue française. Entreprise commune par excellence, la revue gagne à être considérée dans son ensemble. Une lecture des sommaires de la NRF relativise le rôle de Gide et met en

  17. Test des photomultiplicateurs en silicium couplés à un scintillateur plastique pour la nouvelle Tape Station

    CERN Document Server

    sekal, Smain

    2014-01-01

    L’une des parties essentielles de la l’installation ISOLDE est la tape Station (contrôleur de bandes), qui permet la vérification de la qualité du faisceau délivré aux expériences. On prévoit à ISOLDE de remplacer l’ancienne Tape Station, par une nouvelle Tape station; et l’un des paramètres essentiels pour la performance de la tape Station est l’efficacité de détection. Le but de ce travail est de vérifier l’efficacité des détecteurs de particules bêta, composés par l’association des photomultiplicateurs en Silicium à un scintillateur plastique pour differentes distances.

  18. Yankaya Dilek, La nouvelle bourgeoisie islamique. Le modèle turc, Presses universitaires de France, coll. Proche Orient, 2013, 216 p.

    OpenAIRE

    Özatalay , Cem

    2014-01-01

    International audience; Paru en mars 2013, le livre de Dilek Yankaya intitulé La nouvelle bourgeoisie islamique. Le modèle turc apporte une contribution remarquable pour comprendre les dynamiques sociales qui sous-tendent la polarisation politique et culturelle qui marque tout autant l’histoire récente de la Turquie que les événements de Gezi. En mettant en lumière les aspirations et la conscience de classe de la bourgeoisie islamique en formation, Yankaya essaie de montrer dans son ouvrage c...

  19. Anatomía y densidad o peso específico de la madera

    OpenAIRE

    León Hernández, Williams J.

    2010-01-01

    El presente trabajo trata sobre la relación que existe entre las características anatómicas de la madera y su densidad o peso específico. Tomando en consideración la importancia de esta propiedad física y su relación con otras propiedades físico-mecánicas de la madera, es necesario conocer cuáles son los elementos celulares que influyen sobre la misma. En el caso de maderas de coníferas, las características de las traqueidas definen el valor promedio y el patrón de variac...

  20. Estudo comparativo da massa específica aparente e retratibilidade da madeira de pau-brasil (Caesalpinia echinata LAM. nativa e de reflorestamento

    Directory of Open Access Journals (Sweden)

    Sinval dos Santos Marques

    2012-04-01

    Full Text Available Entre as propriedades físicas da madeira, a massa específica aparente e a retratibilidade são características importantes na avaliação da qualidade da madeira para ampla gama de uso. A massa específica aparente, ou densidade aparente, está relacionada a uma série de outras características, principalmente àquelas relacionadas às propriedades mecânicas e anatômicas da madeira. Do mesmo modo, a retratibilidade também é importante característica, pois avalia a estabilidade dimensional das madeiras, sendo de grande importância para aplicações em que a madeira não deve apresentar contrações excessivas durante sua utilização. Com base nisso, este estudo teve como objetivo comparar a massa específica aparente e a retratibilidade da madeira de pau-brasil, proveniente de áreas naturais e de reflorestamentos com 10, 15, 20, 26 e 30 anos. Tais avaliações foram realizadas segundo a metodologia preconizada pelo Método Brasileiro 26/1940 da Associação Brasileira de Normas Técnicas. Os resultados indicaram que houve variação na massa específica aparente nas diferentes idades, com os maiores valores para a madeira de 30 anos de idade, que foram próximos aos encontrados para amostras de madeira nativa. A retratibilidade volumétrica total também variou em função da idade, não apresentando grande diferença em relação à madeira proveniente de áreas naturais.

  1. Efectivitat de la teràpia craneosacral en el dolor lumbar crònic no específic: estudi experimental i aleatoritzat.

    OpenAIRE

    Grañó Martí, Sílvia

    2015-01-01

    Pregunta clínica: És més efectiu el tractament convencional del dolor crònic lumbar no específic en l'edat adulta si li afegim el tractament amb teràpia craneosacral? Objectiu: Valorar l'efectivitat de la teràpia craneosacral en persones en edat adulta amb dolor crònic lumbar no específic. Metodologia: Es realitzarà un estudi experimental a partir d'un assaig clínic aleatoritzat i amb un simple cec. Es durà a terme durant l'any 2016 i mitjans de 2017 a la població de Lleida. La mostra e...

  2. MOOCs et mobilités étudiantes : vers une nouvelle circulation des connaissances ? Observations au regard de l&8217;Afrique francophone

    OpenAIRE

    Meyer, Jean-Baptiste

    2017-01-01

    Les discours actuels sur l'internationalisation de l'enseignement supérieur font grand cas des cours à distance en diffusion libre et massive. Ils offrent des possibilités nouvelles de transmettre des connaissances élaborées, à un grand nombre de personnes, et sans recours à d'autres supports qu'un ordinateur connecté. Ces modalités en font un outil prometteur de transfert ou de partage international, puisque les frontières des pays sont effacées par la transmission numérique. Elles peuvent d...

  3. Lenguaje específico de dominio para aplicaciones de modelación glaciológica

    OpenAIRE

    Gel, Matías; Urciuolo, Adriana Beatriz; Iturraspe, Rodolfo Javier

    2014-01-01

    Las aplicaciones de software de modelado de la naturaleza se caracterizan por la complejidad propia de la información y procesos ambientales. Se requiere un nivel de abstracción adecuado y flexibilidad para la modelación de los procesos naturales. Algunas limitaciones del software del dominio provienen del uso de herramientas y lenguajes que carecen de facilidades para representar los conceptos particulares de estas aplicaciones. El Modelado específico del dominio (DSM) propone elevar el nive...

  4. Tradition et innovations esthétiques dans la nouvelle yéménite contemporaine Tradition and aesthetic innovations in contemporary Yemeni short stories

    Directory of Open Access Journals (Sweden)

    Géraldine Jenvrin

    2008-04-01

    Full Text Available Le nouveau recueil de Mu/hammad ‘Abd al-Wakîl Jâzim témoigne d’une transformation capitale dans la littérature yéménite contemporaine :  le passage d’une forme expérimentale en rupture avec les règles de la nouvelle traditionnelle et avec la réalité yéménite, à une autre forme plus accomplie dans laquelle les principes traditionnels de la nouvelle sont ici associés sans complexe aux formes renouvelées du genre.  La nouvelle intitulée Le maître des vautours, présente, dans une structure narrative traditionnelle, un conte fantastique moderne qui mêle réalisme, symbolisme et poésie, et dans lequel l’auteur traite à sa manière les thèmes littéraires contemporains de la dualité du rêve et de la réalité, du désenchantement et de l’enfermement perpétuel.  C’est notamment en s’inspirant de la langue, des pratiques orales, des croyances et de l’imaginaire populaire, que l’auteur, soucieux de donner un ancrage au texte dans la réalité yéménite, transfigure cette expérience existentielle moderne.The latest collection of short stories by Mu/hammad 'Abd al-Wakîl signals a major shift in contemporary Yemeni literature: from an experimental form, breaking away from both traditional short story conventions and Yemeni reality, to another, more accomplished form, unabashedly mixing traditional short story principles with renewed genre forms. The short story entitled The Vulture Master presents us, from within a traditional narrative structure, with a modern fantasy tale blending in realism, symbolism and poetry, and where the writer deals in his own way with such contemporary literary themes as disenchantment, perpetual captivity, and the duality of dream and reality. Drawing his inspiration from language itself, oral practices, beliefs and popular imagery, the writer, seeking to set his tale firmly in Yemeni reality, manages to transfigure this modern existential experiment.

  5. Ansiedad social específica y generalizada: ¿variantes del mismo trastorno o categorías diferentes con características similares?

    Directory of Open Access Journals (Sweden)

    Ihab Zubeidat

    2007-01-01

    Full Text Available El objetivo de este estudio descriptivo transversal fue evaluar las diferencias y similitudes entre la ansiedad social específica y generalizada en una muestra de adolescentes españoles. Para ello, un total de 1.012 jóvenes fueron evaluados, en su entorno escolar, mediante una serie de pruebas que miden variables demográficas, ansiedad social, competencias psicosociales y distintos problemas clínicos. Dos grupos de ansiedad social (específica, n = 50; generalizada, n = 38 fueron establecidos en función de un doble criterio cuantitativo mediante la Escala de Ansiedad en Interacción Social. Los resultados indicaron que no había diferencias significativas entre los dos grupos respecto a las variables demográficas y competencias psicosociales evaluadas. Las únicas diferencias significativas encontradas fueron obtenidas en las variables referidas a la actuación e interacción en situaciones sociales, donde los adolescentes con ansiedad social generalizada puntaron más alto que los que presentaban ansiedad social específica. Parece ser que el patrón de las diferencias en los niveles de ansiedad va asociado a las propias situaciones de actuación e interacción social.

  6. Obtención y caracterización de un anticuerpo específico contra la hormona luteinizante humana

    Directory of Open Access Journals (Sweden)

    Adriana Umaña

    1996-12-01

    Full Text Available En el presente trabajo se describe la obtención del anticuerpo policlonal específico contra la hormona luteinizante humana (HL. La hormona fue purificada a partir de una fracción rica en glicoproteínas, obtenida de hipófisis humanas, siguiendo el método desarrollado previamente en el proyecto basado en diferencias de solubilidad y constante dieléctrica entre las diferentes proteínas. El antisuero específico se obtuvo por inoculación del antígeno en conejos raza Nueva Zelanda y su producción controlada valorando el título por RIA. La caracterización parcial del antisuero se realizó mediante la determinación del título óptimo, afinidad, especificidad y su aplicabilidad para la cuantificación en términos de curva estándar y control de calidad, en comparación con un antisuero de referencia internacional. Los resultados indicaron que el anticuerpo obtenido puede emplearse en la cuantificación de HL por RIA.

  7. Qualidade de vida de crianças e adolescentes com insuficiência renal crônica em hemodiálise: construção do Módulo Específico DISABKIDS®

    OpenAIRE

    Isabella Schroeder Abreu

    2014-01-01

    Estudos envolvendo a mensuração da qualidade de vida relacionada à saúde (QVRS) de crianças e adolescentes com insuficiência renal crônica (IRC) são escassos no Brasil, o que pode ser resultado, da ausência de instrumentos específicos para este fim. Muitos estudos, nesse sentido, são desenvolvidos utilizando-se instrumentos específicos para adultos com IRC ou instrumentos genéricos de QVRS, não específicos para esta condição crônica (CC). A presente pesquisa trata-se de um estudo metod...

  8. Hostelería para fines específicos en el aula de E/LE

    OpenAIRE

    Giménez Folqués, David

    2011-01-01

    Cuando un alumno extranjero se dispone a estudiar un nuevo idioma, tiene la esperanza de volver a su país sabiendo al menos desenvolverse en los ámbitos más esenciales: en una conversación cotidiana, en el banco, en una entrevista de trabajo o,por qué no, en un restaurante. Así pues, hemos seleccionado la Hostelería para fines específicos en el aula de E/LE como proyecto con el fin de auxiliar al alumno en este campo. Este objetivo lo llevamos a cabo mediante un enfoque por tareas, es decir,a...

  9. Relación entre el rendimiento académico y las competencias específicas en la asignatura de Actividad Física para Poblaciones Especiales.

    OpenAIRE

    Cardona González, Claudia Andrea; Esteve Lanao, Jonathan; Larumbe Zabala, Eneko; Álvarez Carnero, Elvis

    2012-01-01

    OBJETIVOS: relacionar el rendimiento en la calificación acumulada con la percepción que tiene el alumnado de adquisición de las competencias específicas de la asignatura a lo largo del curso académico. MÉTODO: Participaron 50 alumnos de la asignatura Poblaciones Especiales del Grado en Ciencias del Deporte del curso 2011-2012. Su rendimiento académico se comparó con el resultado de una encuesta sobre el grado adquisición de las competencias específicas de la asignatura. RESULTADOS: No se hall...

  10. Les théosophes et l’organisation internationale de l’éducation nouvelle (1911-1921

    Directory of Open Access Journals (Sweden)

    Sylvain Wagnon

    2017-01-01

    Full Text Available The historic importance of Theosophy within the realm of education is due to their presence in their reflexions and educational endeavours are at the origins of that nebulous movement called the New Education (éducation nouvelle. Their presence at the beginning of the organization of the New Education has been explored by several pioneering papers, but remains the blind spot in this area. In fact Theosophy’s influence has been felt but rarely analysed as the matrix of the nebulous international organization of new education. If the Theosophists’ influence were to be recognised, we think that their role, their persistent work that brought on not only the rise of new education, more specifically, the constitution of the International League of New Education but was also the making of educators of Theosophy teachings such as María Montessori and Rudolf Steiner who were not only the roots of the new education but also its main components.

  11. La utilización de software específico y Apps móviles para el control del entrenamiento en deportes cíclicos de resistencia

    OpenAIRE

    Javaloyes Torres, Alejandro; Sarabia, José Manuel; Hernández-Davó, Jose Luis; Sabido, Rafael; López-Grueso, Raúl

    2017-01-01

    El control del entrenamiento es un proceso fundamental en la mejora de las cualidades físicas específicas de aquellos deportistas practicantes de cualquier deporte. Esta tarea es llevada a cabo por los correspondientes entrenadores y/o preparadores físicos, siendo este control específico para cada deporte. Controlar aquellos aspectos relacionados con la fatiga producida, la adaptación a las cargas de trabajo y la asimilación de las sesiones de entrenamiento es de vital importancia en la conse...

  12. Impacto de la maduración y de los puestos específicos en la condición física en jóvenes futbolistas

    OpenAIRE

    Massuça, Luis; Soarez, Helena; Fragoso, Isabel; Barrigas, Carlos

    2012-01-01

    Objetivo Describir las características condicionales de una población de deportistas jóvenes, tanto por nivel madurativo como por puestos específicos. Muestra Se han estudiado 95 jugadores de fútbol (13-16 años) pertenecientes a escuelas deportivas de futbol. Métodos Las variables utilizadas en este estudio han sido: edad, puesto específico (medio, defesa, delantero, portero), peso, altura, maduración, capacidad aeróbica, fuerza isométrica máxima del tren superior, ...

  13. Intervención en un trastorno específico del lenguaje: un estudio de caso

    OpenAIRE

    Toral Buena, Sergio

    2017-01-01

    El lenguaje es un instrumento útil de socialización que permite la comunicación entre las personas, satisfacer las necesidades básicas, expresar sentimientos y regular el comportamiento de los demás. En este trabajo se efectúa una revisión del concepto del lenguaje y sus dificultades, en concreto, del Trastorno Específico del Lenguaje. Analizaremos el estudio de caso de un alumno con TEL y la comorbilidad de distintos trastornos con los que también cuenta. Finalmente se presenta una pro...

  14. específico en la sierra norte de Sevilla

    Directory of Open Access Journals (Sweden)

    Rafael Garzón García

    2008-01-01

    Full Text Available La primera parte del artículo ofrece una visión panorámica de la política de fomento del uso público en la Red de Espacios Naturales Protegidos de Andalucía desde su origen hasta nuestros días, con especial incidencia en cuestiones tales como el papel preponderante asumido por la figura de Parque Natural, el desequilibrio territorial de las intervenciones planteadas, o la necesaria ordenación y planificación de la actividad. Ello conforma el contexto idóneo para abordar, en segunda instancia, un análisis particularizado de la gestión del uso público en el Parque Natural Sierra Norte de Sevilla. La elección de este ámbito territorial se fundamenta tanto en sus especiales condicionantes para el fomento de esta línea de acción (privilegiada situación, existencia de una demanda tradicional asociada a determinados enclaves, propiedad de la tierra… como en la singular gestión desarrollada desde la declaración del parque, destacando las nuevas perspectivas e incertidumbres que parecen despertarse a partir del impulso y aprobación de una planificación específica

  15. Nouvelle application de control des cavités 200 MHz RF du PS (CERN)

    CERN Document Server

    Cotte, D

    2011-01-01

    Le système Radio Fréquence (RF) 200MHz du PS est un outil essentiel pour la préparation des faisceaux haute intensité du PS. Dans l’anneau PS on trouve 6 cavités 200 MHz utilisées pour contrôler : • l’émittance longitudinale des « bunches » • le processus de « Rebunching » du faisceau avant de l’envoyer au SPS. Chaque cavité est pilotée par des événements appelés « timing » et suit une fonction de tension programmée. Cependant, l’électronique utilisée pour piloter les cavités 200 MHz du PS est obsolète et sa fiabilité non garantie pour cause du manque de pièces de rechange. Ce document décrit le fonctionnement du nouveau programme d’application qui fait abstraction de l’ancienne matrice hardware. Elle suit les recommandations décrites dans l’étude d’une nouvelle structure pour le système RF 200MHz du PS. [1

  16. Mieux comprendre les especes exotiques envahissantes a la ...

    African Journals Online (AJOL)

    De façon générale, les causes de leur prolifération sont attribuées aux ... affect biodiversity is the second cause of species extinction throughout the world. ... it is to admit that besides animal and plant species, human species is also to be ...

  17. Inglés para fines específicos: hacia una propuesta metodológica para la enseñanza de la comprensión lectora

    OpenAIRE

    García Rayego, Rosa; Martínez Victorio, Luis Javier

    1991-01-01

    El presente artículo recoge parte de las investigaciones realizadas en el campo de la Psicolingüística, y se apoya en sus logros para proponer una metodología de la comprensión lectora en un curso de Inglés para Fines Específicos (E.S.P.). La primera parte del trabajo introduce brevemente los rasgos distintivos que han venido definiendo los cursos de Inglés para Fines Específicos. En la segunda parte, se exponen los principales modelos teóricos del proceso de lectura ('bottom-up' y 'top down'...

  18. Les nouvelles formes de la communication autour des projets urbains : modalités, impacts, enjeux pour un débat participatif

    Directory of Open Access Journals (Sweden)

    Hélène Bailleul

    2008-09-01

    Full Text Available Dans cet article, nous observons les évolutions que l’usage des nouvelles technologies implique dans la communication autour des projets urbains. Notre analyse des nouvelles modalités qu’Internet a pu importer dans la participation des habitants aux projets urbains (partie 1 nous pousse à observer, plus spécifiquement, les modifications qui ont trait, dans ce contexte, à la nature et au statut de l’information sur l’espace. La démocratisation des techniques de représentation de l’espace par ordinateur (3D, simulation entraîne le recours quasi systématique à des images virtuelles du projet, d’une grande qualité (partie 2, mais dont on ne connaît que très peu les impacts sur la perception et la réception que les habitants font du projet (partie 3.In this article, we observe the evolutions involved by the use of new technology in the communication around urban projects. Our analysis of the new modalities, Internet was able to import in the participation of inhabitants in urban projects (chapter 1 urges us to examine, more specifically, the modifications concerning the nature and the status of the information about space. The democratization of computer-based spatial representation’s tools (3D, simulation entails more and more systematic recourse to virtual images of the project, with high definition (chapter 2. But, nowadays, we still know little about their impacts on the perception and the reception, the inhabitants make of the project (chapter 3.

  19. Instrumentos específicos para avaliar a qualidade de vida em crianças e adolescentes com asma

    Directory of Open Access Journals (Sweden)

    Cristian Roncada

    2013-06-01

    Full Text Available OBJETIVO: Identificar e descrever os instrumentos específicos que avaliam a QVRS de crianças e adolescentes com asma. FONTES DOS DADOS: Realizamos buscas nas bases de dados PubMed, Ovid e LILACS utilizando várias combinações de descritores (MeSH terms, selecionando artigos originais sobre desenvolvimento de questionários específicos de QVRS, publicados em inglês, português ou espanhol, entre 1990 e 2012. SÍNTESE DOS DADOS: Foram identificados 15 instrumentos que preencheram os critérios de inclusão. A maioria dos estudos avaliou confiabilidade mediante consistência interna e/ou reprodutibilidade e/ou sensibilidade às mudanças. A validade foi avaliada mediante a comparação com hígidos (validade discordante ou análise fatorial. CONCLUSÕES: Dos 15 instrumentos, três são os mais utilizados, o PAQLQ, o PedsQL-Asthma e DISABKIDS. Em geral, estes três instrumentos possuem características psicométricas adequadas e são práticos de aplicar, mas apenas o PAQLQ completou a adaptação cultural para o Brasil.

  20. Calor específico a bajas temperaturas de alcoholes sólidos vítreos y cristalinos

    Directory of Open Access Journals (Sweden)

    Talón, C.

    2004-02-01

    Full Text Available We present and discuss in this work specific-heat experiments at low temperature that we have conducted on different molecular (hydrogenbonded glasses and crystals. Specifically, we have measured the low-temperature specific heat Cp(T for a set of solid alcohols: normal and fully-deuterated ethanol, 1−and 2−propanol, and glycerol. Ethanol exhibits a very interesting polymorphism presenting three different solid phases at low temperature: a fully-ordered (monoclinic crystal, an orientationally-disordered (cubic crystal or “orientational glass”, and the canonical (amorphous structural glass. By measuring and comparing the low-temperature specific heat of the three phases, in the boson peak range, 2−10 K, as well as in the tunneling-states range, below 1K, we are able to provide a quantitative confirmation that “glassy behavior” is not an exclusive property of amorphous solids. On the other hand, propanol is the simplest monoalcohol with two different stereoisomers (1−and 2−propanol, which allows us to study directly the influence of the spatial rearrangement of atoms on the universal properties of glasses. We have measured the specific heat of both isomers, finding a noteworthy quantitative difference between them. Finally, low-temperature specific-heat data of glassy and crystalline glycerol have also been obtained.

    En este trabajo, presentamos y discutimos experimentos de calorimetría a bajas temperaturas que hemos realizado en diferentes vidrios y cristales moleculares (de puentes de hidrógeno. En concreto, hemos medido el calor específico a bajas temperaturas Cp(T para un conjunto de alcoholes sólidos: etanol normal y completamente deuterado, 1−y 2−propanol, y glicerol. El etanol presenta un muy interesante polimorfismo, con tres fases sólidas diferentes a bajas temperaturas: un cristal estable perfectamente ordenado (monoclínico, un cristal (cúbico con desorden orientacional o “vidrio orientacional”, y

  1. The English Democrats Party ou l’émergence d’une nouvelle mouvance : le nationalisme autonomiste anglais

    Directory of Open Access Journals (Sweden)

    Claude BARBANTI

    2011-03-01

    Full Text Available La réforme dite de dévolution (décentralisation, votée en 1997, a entraîné de multiples conséquences et transformations dans la vie politique britannique. Le système traditionnellement unitaire de Westminster s’en est trouvé profondément bouleversé. Pourtant, tandis que de nombreuses études furent menées sur les divers nouveaux aspects d’une Grande-Bretagne dévolue, peu se sont penchées sur les conséquences de cette nouvelle asymétrie constitutionnelle sur l’Angleterre. Lorsque des députés de circonscriptions « celtiques » (en Écosse ou au pays de Galles arrivent à influencer le résultat de votes sur des affaires exclusivement anglaises, certains députés d’Angleterre, à Westminster, ne peuvent que se sentir désarmés face au manque de dispositions constitutionnelles garantissant un statut particulier pour ce territoire. Dès lors, de cette « question anglaise » (« English Question », naîtra toute une nouvelle mouvance autonomiste entièrement dédiée à l’obtention d’un Parlement anglais.Devolution at the end of the 1990s has led to numerous consequences and transformations in British politics. The traditional and centralised Westminster system has been turned upside down, and many studies have been carried out on the various aspects of this new “devolved Britain”.Yet, few have paid attention to the English case. However, the constitutional asymmetry thus created has indeed also affected England. When Celtic MPs succeed to influence the outcome of votes on exclusively English matters, one can realise that there is no such thing as an English government. Therefore, some English MPs have felt the need to ask for an option of “English Votes on English Laws”. This article tries to demonstrate that a feeling of “resentment” emerges from this situation and leads to the birth of a new “English” nationalism, entirely dedicated to obtaining an English Parliament.

  2. “Sí quiero”: propuesta didáctica de español para fines específicos

    Directory of Open Access Journals (Sweden)

    María Eugenia Brime Bertrand

    2012-08-01

    Full Text Available Esta actividad ha sido creada para trabajar con un grupo de 30 estudiantes italianos de economía del turismo con un nivel A1 del MCRE. El curso tenía una duración de 30 horas divididas en 15 sesiones de dos horas cada una, durante las cuales se trabajaba el lenguaje específico del turismo a través de diferentes situaciones comunicativas. Para ello se creó una WebQuest (a partir de ahora WQ instalada en un Wiki.

  3. “Sí quiero”: propuesta didáctica de español para fines específicos

    Directory of Open Access Journals (Sweden)

    María Eugenia Brime Bertrand

    2012-01-01

    Full Text Available Esta actividad ha sido creada para trabajar con un grupo de 30 estudiantes italianos de economía del turismo con un nivel A1 del MCRE. El curso tenía una duración de 30 horas divididas en 15 sesiones de dos horas cada una, durante las cuales se trabajaba el lenguaje específico del turismo a través de diferentes situaciones comunicativas. Para ello se creó una WebQuest (a partir de ahora WQ instalada en un Wiki.

  4. Efeitos do treinamento de força específico no desempenho de nadadores velocistas treinados com parachute

    Directory of Open Access Journals (Sweden)

    Danilo Sales Bocalini

    2010-09-01

    Full Text Available OBJETIVO: verificar os efeitos do treinamento de força específico no desempenho de nadadores velocistas. METODOLOGIA: dois grupos de nadadores randomizados em treinados sem (TSP, n: 8 e com parachute (TCP, n: 12 foram submetidos a treinamento de 12 semanas (6 x semana; 1 sessão de 2 h/dia, sendo avaliados a força muscular (FMMI; a força específica (FE e o tempo de sustentação de força (TSF; o número de braçadas em 50m (NB 50m; o tempo e a velocidade de nado em 15 (V 15m e 50m (V 50m, antes e após o protocolo. RESULTADOS: após o programa de treinamento, não ocorreram modificações na FMMI e V 15m para ambos os grupos. Nas demais variáveis houve melhora significante (p 18%; FE (> 30%; TSF (> 35%; NB 50m ( 16%. O grupo TSP apresentou melhora no TSF (> 9%. CONCLUSÃO: o emprego do parachute foi eficiente em melhorar os parâmetros de força e no desempenho no teste de 50m

  5. Iniciadores específicos para detectar las especies de Colletotrichum causantes de la antracnosis de los olivos

    OpenAIRE

    Martín, María P.; García-Figueres, F.; Trapero, Antonio

    2002-01-01

    Colletotrichum acutatum y C. gloeosporioides son los agentes causantes de la antracnosis de los olivos en España. En este trabajo se presentan los iniciadores específicos diseñados que, junto con el iniciador general ITS4, permiten discriminar a ambas especies mediante la reacción en cadena de la polimerasa (PCR). Colletotrichum acutatum and C. gloeosporioides are the causal agents of the anthracnose on olive trees from Spain. In this work, the specific primers designed to discriminate bo...

  6. Tratamiento de una sesión de la fobia específica a las arañas en niños

    Directory of Open Access Journals (Sweden)

    Graciela Bermúdez-Ornelas

    2008-01-01

    Full Text Available Este estudio se propuso explorar el efecto del tratamiento de una sesión conductual de la fobia específica, diseñado por Öst, sobre las conductas de acercamiento y manipulación de las arañas por parte de niños con diagnóstico de fobia específica y su ansiedad, según la percepción de sus padres, una semana, tres y seis meses después del tratamiento. El estudio cuasiexperimental empleó un diseño de serie temporal interrumpida simple. Se aplicó la intervención en forma individual a 10 niños, entre 7 y 12 años, diagnosticados con fobia específica a las arañas. Se evaluó, antes, una semana después del tratamiento, tres y seis meses después, la respuesta de aproximación de los niños a las arañas y su ansiedad/depresión de acuerdo con el informe de sus padres. Se observaron mejoras estadística y clínicamente significativas después del tratamiento y tres meses después en todos los niños. La mejoría se mantuvo a los seis meses después del tratamiento para seis de los siete niños que terminaron el estudio. Los hallazgos se discuten a la luz de su relevancia clínica. Se repiten los resultados de estudios anteriores sobre la eficacia del tratamiento de una sesión en niños latinoamericanos.

  7. Une nouvelle orientation dans l’enseignement supérieur au vietnam: de la mémoire à la résolution de problèmes

    Directory of Open Access Journals (Sweden)

    TRƯƠNG Quang Dũng

    2016-12-01

    Full Text Available L’enseignement supérieur traditionnel est essentiellement basé sur la transmission du savoir et occasionnellement sur celle du savoir-faire. Il se réclame donc des disciplines universitaires (mathématiques, physique, chimie, géologie.... dispensées dans les universités et grandes écoles. Or, la réussite professionnelle et sociale dans le monde moderne exige d’autres acquis plus probants que des connaissances pures. Plusieurs recherches récentes ont ainsi montré que la résolution de bien des problèmes requiert des qualités pragmatiques d’efficacité indispensables pour l’accomplissement d’un travail créatif. Résoudre un problème revient alors à apprendre à maitriser une démarche méthodique composée de plusieurs phases, depuis l’identification du problème jusqu’à sa solution finale en passant par l’analyse judicieuse des causes. Il faut également maîtriser l’utilisation d’outils conceptuels et Méthodologiques tels que, entre autres, la « loi de Pareto », le questionnement systématique et le brainstorming . Au Vietnam on peut espérer la mise en application de ces nouvelles orientations dans un enseignement supérieur qui doit absolument se fixer comme objectif d’améliorer la qualité du travail social pour répondre aux nouvelles exigences de développement du pays.

  8. L'auteure mise en scène et mise à nu. Sur les fausses confessions de La nouvelle pornographie

    Directory of Open Access Journals (Sweden)

    Joëlle Papillon

    2010-11-01

    Full Text Available L'inclusion dans La nouvelle pornographie (2000 du nom propre de l'auteure est perçue comme une implication qui la met en danger. La métalepse est utilisée pour inscrire le roman dans la mouvance des confessions sexuelles et se jouer de leurs codes. Comme le discours publicitaire, Marie Nimier utilise la rhétorique pornographique afin de « vendre » un contenu domestique : la pornographie de surface dissimule un récit qui réinscrit l'amour comme moteur du désir féminin. Nimier joue de la métalepse pour déjouer les scènes pornographiques et séduire le lecteur par l'intelligence de ses manipulations plutôt que par ses dévoilements.

  9. Desarrollo de la memoria autobiográfica en niños a través del recuerdo de eventos específicos. Incidencia del repaso visual y verbal

    OpenAIRE

    Mateo Gómez, Alonso

    2016-01-01

    Esta tesis se plantea como principal objetivo estudiar la memoria autobiográfica sobre eventos específicos en niños de edad preescolar mediante un diseño experimental. La memoria autobiográfica (MA) comienza a desarrollarse durante la primera infancia. En esta línea, se ha considerado que la capacidad de recordar eventos de tipo específico no aparece hasta los tres años de edad y que, por tanto, los niños en edad preescolar presentan problemas para recuperar este tipo de recuerdos. Este trab...

  10. Adoption et retombées d'une nouvelle technologie de dépistage des infections à ERV en contexte hospitalier québécois

    OpenAIRE

    Attieh, Randa

    2015-01-01

    La « Polymerase Chain Reaction» (PCR) est une technologie moléculaire qui se veut performante pour détecter les entérocoques résistants à la vancomycine (ERV) en contexte hospitalier. La traduction de cette technologie dans les pratiques professionnelles des acteurs est conceptualisée comme un processus d’adaptation et d’ajustements des rôles entre la technologie et le milieu hospitalier. Par souci de mieux comprendre la traduction de la nouvelle technologie de dépistage PCR dans les pratique...

  11. New method of determining the thermal utilization factor of a cell; Nouvelle methode de determination du facteur d'utilisation thermique d'une cellule

    Energy Technology Data Exchange (ETDEWEB)

    Amouyal, A; Benoist, P [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1956-07-01

    A new formula for the thermal utilization factor is derived, which, while comparable in simplicity to the formula given by elementary diffusion theory, furnishes much more precise results. This is clearly brought out by comparison with the results given by the S{sub n} and spherical harmonics methods. (author) [French] Une nouvelle expression du facteur d'utilisation thermique, d'une simplicite comparable a celle de Ia theorie elementaire, est etablie. La comparaison avec les resultats fournis par la methode S{sub n} et les methodes d'harmoniques spheriques montre que la precision obtenue par cette formule est tres superieure a celle que donne la theorie elementaire. (auteur)

  12. Développement des compétences interprofessionnelles de la nouvelle infirmière diplômée: revue de littérature

    OpenAIRE

    Meyer, Agnès,; Hauser, Christine,; Bulliard Verville, Danielle

    2017-01-01

    La pénurie infirmière qui touche actuellement la Suisse sera comblée en grande partie par les nouvelles diplômées infirmières1, d’ici quelques années. Cependant, un taux important de turnover dans les équipes peut mettre en péril leur encadrement. Leur processus d’insertion étant particulièrement éprouvant dans les premiers mois de pratique, il en résulte que nombre d’entre elles quittent précocement la profession. Comme stratégie pour pallier ce problème, la littérature montre les effets pos...

  13. Hostelería para fines específicos en el aula de E/LE

    Directory of Open Access Journals (Sweden)

    David Giménez Folqués

    2011-01-01

    Full Text Available Cuando un alumno extranjero se dispone a estudiar un nuevo idioma, tiene la esperanza de volver a su país sabiendo al menos desenvolverse en los ámbitos más esenciales: en una conversación cotidiana, en el banco, en una entrevista de trabajo o,por qué no, en un restaurante. Así pues, hemos seleccionado la Hostelería para fines específicos en el aula de E/LE como proyecto con el fin de auxiliar al alumno en este campo. Este objetivo lo llevamos a cabo mediante un enfoque por tareas, es decir,adquiriremos las herramientas necesarias antes de emprender la tarea que nos interesa:saber desenvolvernos en un restaurante. Para ello, hemos seleccionado los tiempos verbales y el vocabulario que hemos considerado esenciales para el desarrollo de nuestro objetivo.

  14. Closure relations for the multi-species Euler system. Construction and study of relaxation schemes for the multi-species and multi-components Euler systems; Relations de fermeture pour le systeme des equations d'Euler multi-especes. Construction et etude de schemas de relaxation en multi-especes et en multi-constituants

    Energy Technology Data Exchange (ETDEWEB)

    Dellacherie, St. [CEA Saclay, Dir. de l' Energie Nucleaire DEN/SFNME/LMPE, Lab. de Modelisation Physique et de l' Enrichissement, 91 - Gif sur Yvette (France); Rency, N. [Paris-11 Univ., CNRS UMR 8628, 91 - Orsay (France)

    2001-07-01

    After having recalled the formal convergence of the semi-classical multi-species Boltzmann equations toward the multi-species Euler system (i.e. mixture of gases having the same velocity), we generalize to this system the closure relations proposed by B. Despres and by F. Lagoutiere for the multi-components Euler system (i.e. mixture of non miscible fluids having the same velocity). Then, we extend the energy relaxation schemes proposed by F. Coquel and by B. Perthame for the numerical resolution of the mono-species Euler system to the multi-species isothermal Euler system and to the multi-components isobar-isothermal Euler system. This allows to obtain a class of entropic schemes under a CFL criteria. In the multi-components case, this class of entropic schemes is perhaps a way for the treatment of interface problems and, then, for the treatment of the numerical mixture area by using a Lagrange + projection scheme. Nevertheless, we have to find a good projection stage in the multi-components case. At last, in the last chapter, we discuss, through the study of a dynamical system, about a system proposed by R. Abgrall and by R. Saurel for the numerical resolution of the multi-components Euler system.

  15. Absorption of some mineral salts by root system of different woody species and accumulation over a whole vegetative cycle (1963); Absorption de quelques sels par l'appareil radiculaire de differentes especes ligneuses et accumulation au cours d'un cycle vegetatif complet (1963)

    Energy Technology Data Exchange (ETDEWEB)

    Gagnaire, J; Gerard, J M [Commisariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires

    1963-07-01

    The concentration power of plant tissues and the translocation speed of mineral salts are considerably varying with the absorbed salt, the botanical species, the considered tissue and the part of the vegetative cycle. In Grenoble, with Picea excelsa, the 'true dormancy' is short (half-november, end of december). It is accompanied by a pre-dormancy period (October, half-november) and a post dormancy period (January, february, march). In vegetative period, Picea excelsa leaves are less concentrating mineral salt than Acer campestris leaves (coefficient 2 for calcium - 3 for phosphates) and Populus nigra leaves (coefficient 3 for calcium, coefficient 5 for phosphates). (author) [French] Le pouvoir de concentration de tissus vegetaux, et particulierement la vitesse de transport des sels mineraux varient beaucoup selon le sel mineral absorbe, l'espece vegetale, le tissu considere ainsi que la periode du cycle vegetatif. A Grenoble, pour les epiceas 'la dormance veritable' est courte (mi-novembre, fin decembre). Elle est encadree par des periodes de pre-dormance (octobre, mi-novembre) et de post-dormance (janvier, fevrier, mars). Pendant la periode vegetative, le pouvoir de concentration de sels mineraux des aiguilles d'epiceas est plus faible que celui des feuilles d'erables (coefficient 2 pour le calcium - coefficient 3 pour les phosphates) ou que celui des feuilles de peupliers (coefficient 3 pour le calcium - coefficient 5 pour les phosphates). (auteur)

  16. Atención del profesorado universitario a estudiantes con necesidades educativas específicas

    Directory of Open Access Journals (Sweden)

    Pedro Ricardo Álvarez-Pérez

    2015-05-01

    Full Text Available Esta investigación analiza el rol que desempeña el profesorado en la puesta en práctica de un enfoque inclusivo de la enseñanza y las dificultades que encuentra en su labor educativa y orientadora. Participaron en el estudio una muestra de 111 docentes universitarios, que durante el curso 2012/2013 atendieron a estudiantes con necesidades educativas específicas. Respondieron a un cuestionario estructurado en torno a cuatro dimensiones básicas: 1 información y formación; 2 apoyos y recursos; 3 actuaciones en el aula; 4 actuaciones en las tutorías. Los resultados evidenciaron que el profesorado universitario no está preparado para dar una respuesta educativa adaptada a la diversidad, que demandaba formación en el uso de estrategias y recursos que les permitieran una atención personalizada de todo el alumnado.

  17. Nouvelles Techniques d'Intervention sur la Corrosion des Armatures du Béton Armé

    CERN Document Server

    Colloca, C

    1999-01-01

    Les principaux dégâts constatés dans les armatures passives du béton armé sont la corrosion généralisée et la corrosion locale. Ces dégradations sont provoquées soit par la carbonatation du béton soit par le contact avec l'eau pure ou l'eau chargée de chlorures pénétrant dans les pores et dans les fissures de surface. Ce document présente de nouvelles techniques d'intervention, fondées sur d'anciens principes, introduites pour le traitement électrochimique des zones altérées liées aux différentes conditions. La réalcalinisation (dans le cas de béton carbonaté) permet d'augmenter le pH du béton et de rétablir un niveau de basicité garantissant la passivation de l'armature. La désalification (dans le cas de béton entamé par les chlorures) provoque l'élimination des ions chlorure à travers la surface du béton. Les avantages de ces traitements, par rapport aux anciennes techniques, sont appréciables si l'on considère la durée d'exécution et leur coût moins élevé.

  18. El tratamiento de la fobia social específica y generalizada en Europa : un estudio meta-analítico

    OpenAIRE

    Sánchez Meca, Julio; Rosa Alcázar, Ana Isabel; Olivares Rodríguez, José

    2004-01-01

    En este trabajo se presentan los resultados de un meta-análisis sobre la eficacia de las intervenciones conductuales en la fobia social específica y generalizada. Se incluyen un total de 15 artículos europeos que cumplieron con los criterios de selección, dando lugar a 35 estudios independientes, sobre los que se calculó la diferencia media tipificada entre el pretest-postest y pretest-seguimiento. El tamaño del efecto medio en la variable fobia social en el po...

  19. Elements de precision sur la systematique d'especes adventices ...

    African Journals Online (AJOL)

    Interest for these species is both economic and systematic. Indeed ... limb, the dentate or lacerate leaves, the ovary 3 or 5-celled, the circular or hexagonal or pentagonal or trigonal secttion of the fruit, the seeds contiguous or separate inside the fruit are additional characters which could better help to identify these species.

  20. Perspectiva histórica de simulación y juego como estrategia docente: de la guerra al aula de lenguas para fines específicos

    Directory of Open Access Journals (Sweden)

    Amparo García-Carbonell

    2007-04-01

    Full Text Available Simulación y juego es una estrategia de formación que comparte los principios que predica el socioconstructivismo y que responde a necesidades específicas de formación del paradigma actual de educación. La consolidación del uso de la simulación o el juego como herramientas docentes es el resultado de una larga trayectoria que culmina con la convergencia entre las teorías de enseñanzaaprendizaje y un enfoque pedagógico más pragmático, basado en la experiencia, que brinda como resultado un aprendizaje más significativo. Este trabajo investiga cómo el carácter puramente lúdico con el que nacen los primeros juegos se transforma en instrumental. Con este objetivo, se hace un recorrido por las diferentes aplicaciones de la simulación y el juego desde sus orígenes, como juegos de guerra y posteriormente juegos de empresa, hasta su afianzamiento como estrategia docente en numerosas disciplinas y actividades de formación. La posibilidad de vivir una experiencia sin riesgos en una situación bajo un escenario real o simulado nutre un enfoque docente basado en “aprender haciendo”. Desde finales de los años cincuenta, estrategias de formación de uso tradicionalmente militar se prodigan entre numerosas disciplinas y entornos específicos de formación, entre las que se incluye el aprendizaje de lenguas para fines específicos.

  1. ¿Música? No, gracias. Identificación de individuos con insensibilidad específica a la música

    OpenAIRE

    Ernest Mas-Herrero; Antoni Rodriguez-Fornells; Robert Zatorre; Josep Marco-Pallarés

    2014-01-01

    Aunque existe un consenso implícito sobre el hecho de que la mayoría de las personas disfrutan de la música, esta afirmación no se ha demostrado nunca empíricamente. En un estudio reciente, nuestro grupo de investigación ha descrito personas con anhedonia musical específica, es decir, personas sin ningún déficit perceptivo musical y que no sienten placer ante la música, pero tienen una sensibilidad normal ante el resto de estímulos placenteros. Este descubrimiento pone de manifiesto que los d...

  2. El efecto Mateo en niños con dificultades específicas de aprendizaje de las matemáticas

    OpenAIRE

    Blanco Pérez, Margarita; Bermejo Fernández, Vicente

    2009-01-01

    En el presente trabajo se intentó determinar si la presencia de Dificultades Específicas de Aprendizaje en Matemáticas (DAM) se asociaba con la caída de las puntuaciones en las pruebas psicométricas empleadas para valorar el Cociente Intelectual (CI) que con el paso de los cursos se observa en estos niños, tal como sostienen algunos autores con las Dificultades en Lectura y Matemáticas. Además, se evaluó si las diferencias en CI se relacionaban con rendimientos matemáticos igualmente diferen...

  3. Nouvelles perspectives dans la littérature brésilienne contemporaine : Vozes-Mulheres et Quantos filhos Natalina teve ? de Conceição Evaristo

    OpenAIRE

    Champagnat, Pauline

    2017-01-01

    Cet article se propose d’analyser une des manifestations du féminisme brésilien contemporain dans les oeuvres Vozes-Mulheres (1990) et Quantos filhos Natalina teve ? (2015) de Conceição Evaristo sous le prisme des études de genre et des études post-coloniales. Dans un premier temps, nous questionnerons une nouvelle branche du féminisme brésilien : l’intersectionnalité. Après une brève définition du concept, nous expliquerons de quelle manière il s’insère dans le contexte du féminisme brésilie...

  4. Prueba de campo específica de valoración de la resistencia en tenis: respuesta cardiaca y efectividad técnica en jugadores de competición

    Directory of Open Access Journals (Sweden)

    Ernest Baiget

    2008-09-01

    Full Text Available Aunque la resistencia específica del jugador tiene una influencia directa sobre el rendimiento en el tenis, un deporte intermitente de larga duración, las pruebas utilizadas para valorarla no suelen incluir tareas motrices próximas a situaciones de juego reales y pueden ser consideradas de baja especificidad. El objetivo de este estudio es desarrollar una prueba de campo de valoración de la resistencia específica en tenis (Specific Endurance Tennis Test, SET-Test, analizando el comportamiento de la frecuencia cardiaca (FC y de parámetros de efectividad técnica (ET, con el fin de averiguar una posible relación entre ambos parámetros y de éstos con el rendimiento deportivo en jugadores de competición. Participaron siete tenistas masculinos, a los cuales les fue administrada una prueba triangular, progresiva, continua y de intensidad máxima conducida por una máquina lanzapelotas, durante la cual se registró la FC y, al mismo tiempo, parámetros objetivos de ET (precisión y potencia mediante el cálculo de porcentaje de aciertos y errores. Se observa un punto de deflexión de la FC (PDFC en un 86% de los sujetos estudiados, previo o coincidente con una disminución de la ET (punto de deflexión de la eficiencia técnica, PDET. Estos dos puntos analizados de forma simultánea a lo largo de la prueba se muestran relacionados con el rendimiento competitivo de los jugadores estudiados. Se concluye que la prueba propuesta puede ser un método específico y válido para evaluar la resistencia específica y la condición aeróbica en tenistas, aunque son necesarios más estudios con el fin de confirmar las hipótesis planteadas y la validez externa de la prueba.

  5. Print Culture and the New Maritime Frontier in Rangoon and Penang Culture de l’imprimé et nouvelle frontière maritime à Rangoon et Penang

    Directory of Open Access Journals (Sweden)

    Su Lin Lewis

    2012-10-01

    Full Text Available From the mid-19th century, vast improvements in steamship and communication technology created an interlinked network of port-cities in the Indian Ocean and maritime Asia. Though Rangoon and Penang had starkly different relationships to colonial rule, they shared a lineage as multi-ethnic ports where various communities had existed side-by-side for centuries. The advent of the Victorian era fostered new class and racial divisions between them, yet also created a new feuilleton culture in the port-city with the mushrooming of newspapers, books, and a new reading public. Diverse ethnic and linguistic communities sought platforms to articulate their concerns and inform themselves of the affairs of the world, and their place within it. Burmese in Rangoon, imbued with a renewed sense of cultural pride, absorbed the rising tide of anticolonialism nationalism echoing throughout the world. Penangites transformed their society using the liberal, cosmopolitan tenants of imperial citizenship to make political and cultural claims for a multi-ethnic society. The vibrant, outward-looking atmosphere of the colonial port-city as a node of information and cultural exchange made Penang and Rangoon the intellectual staging grounds for new visions of the nation.À compter du milieu du xixe siècle, d’importantes améliorations dans la navigation à vapeur et les technologies des communications ont créé un réseau de villes portuaires dans l’Océan indien et l’Asie maritime. Même si Rangoon et Penang avaient des relations divergentes avec la puissance coloniale, elles participaient d’un type identique comme ports où cohabitaient depuis des siècles des communautés d’ethnies différentes. L’ère victorienne conduisit à de nouvelles divisions sociales et ethniques, mais suscita dans la ville portuaire une nouvelle culture littéraire avec le foisonnement des journaux, des livres et un nouveau lectorat. Les communautés ethniques et linguistiques

  6. New methods and applications in emission spectroscopy (1960); Methodes et applications nouvelles en spectroscopie d'emission (1960)

    Energy Technology Data Exchange (ETDEWEB)

    Baudin, G [Commissariat a l' Energie Atomique, Grenoble (France).Centre d' Etudes Nucleaires

    1960-07-01

    Emission spectroscopy, are already well-established instrumental analytical technique, has in recent years known important developments. Two mains factors are responsible; firstly the demands of metallurgy for purer and purer materials or alloys which are increasingly complex and difficult to analyse by chemical means; secondly, progress in optics, especially in the production of gratings, and in electronics in the field of photomultiplier tubes. We will not here catalogue all the new applications and methods, but we will consider a few amongst the most representative outside the conventional field. (author) [French] La spectroscopie d'emission, technique analytique instrumentale deja ancienne, a pris, depuis quelques annees, une extension notable. Deux facteurs principaux ont contribue a ce succes: d'une part, l'exigence de la metallurgie en materiaux de plus en plus pur ou en alliages de plus en plus complexes, difficiles a analyser chimiquement, d'autre part, les progres realises en optique, principalement dans la fabrication des reseaux, et en electronique dans le domaine des tubes photomultiplicateurs. Nous ne ferons pas ici le recensement de toutes les applications ou methodes nouvelles, mais nous en choisirons quelques unes des plus representatives hors du domaine classique. (auteur)

  7. Gestion par projets et risques pour la santé psychologique au travail dans la nouvelle économie

    Directory of Open Access Journals (Sweden)

    Marie-Josée Legault

    2006-05-01

    Full Text Available Y a-t-il des problèmes de santé mentale propres au travail dans la nouvelle économie ? Quoiqu’on puisse constater que le modèle de demande psychologique - autonomie décisionnelle de Karasek et Theorell- trouve aussi son application dans les milieux de travail qui empruntent cette forme, on observe, en fait, des formes particulières de ces facteurs dans la forme d’organisation du travail propre à la gestion par projets. Assimilables à « l’hypersollicitation par le client » comme il a été repéré par Christophe Dejours, ces formes ont été observées lors d’une enquête menée récemment sur la conciliation entre la vie privée et la vie professionnelle dans sept organisations montréalaises. La recherche qualitative a recueilli en tout le discours de 88 répondants distribués également selon le sexe et exerçant des fonctions liées au génie informatique. Ces observations permettent d’envisager une nuance au modèle théorique de la santé mentale ci-haut mentionné, visant à tenir compte des effets délétères d’une très grande latitude décisionnelle assortie de très grandes responsabilités chez des travailleurs hautement qualifiés.Are there distinct mental health problems among workers in the new economy? Although we may observe that the psychological demand - decision latitude model of Karakek and Theorell is appropriate and also finds its application in this type of workplace, we also notice some particular forms that these factors take in the management-by-project work organization model. Akin to the so-called "client’s hyper-demanding activity" as identified by Christophe Dejours, these forms were observed during a recent field study about balancing work and family in seven Montreal organizations. The qualitative study collected data from 88 individual interviews of information technology engineers, evenly distributed by gender. These observations allow a nuance of the above-mentioned theoretical

  8. ¿Música? No, gracias. Identificación de individuos con insensibilidad específica a la música

    Directory of Open Access Journals (Sweden)

    Ernest Mas-Herrero

    2014-10-01

    Full Text Available Aunque existe un consenso implícito sobre el hecho de que la mayoría de las personas disfrutan de la música, esta afirmación no se ha demostrado nunca empíricamente. En un estudio reciente, nuestro grupo de investigación ha descrito personas con anhedonia musical específica, es decir, personas sin ningún déficit perceptivo musical y que no sienten placer ante la música, pero tienen una sensibilidad normal ante el resto de estímulos placenteros. Este descubrimiento pone de manifiesto que los diversos estímulos reforzadores pueden tener diferentes accesos al sistema de recompensa.

  9. Les nouvelles perspectives d'analyse spatiale des nuisances sonores. Le projet SIGAUR (Système d'Information Géographique et Acoustique URbaine

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    Erwan Quesseveur

    1999-06-01

    Full Text Available Ce rapport présente un projet de recherche sur l’intégration d’une couche d’information de nuisances acoustiques dans un système d’information géographique.Après un développement sur l’état de la pollution et des moyens aujourd’hui en vigueur pour la combattre, on va montrer les nouvelles perspectives offertes pour l’analyse spatiale du bruit. En confrontant cette nuisance aux enjeux du territoire, elle peut devenir un véritable critère de décision en aménagement du territoire.Ce projet résulte d’une collaboration entre le Centre Scientifique et Technique du Bâtiment C.S.T.B. et l’équipe " S.I.G. " de l'Institut de Géographie Alpine (IGA

  10. The Importance of the Idealist Discourse in Defence of American Foreign Policy Initiatives: beyond rhetoric towards a new form of imperialism L’importance du discours idéaliste pour défendre la politique étrangère américaine : vers une nouvelle forme d’impérialisme

    Directory of Open Access Journals (Sweden)

    Andrew Ives

    2009-10-01

    Full Text Available Les États-Unis font rarement appel à un discours basé sur la défense de leurs propres intérêts nationaux pour défendre sa politique étrangère. Dans leur discours officiel, ils tentent plutôt de subordonner l’intérêt national aux objectifs plus nobles de défendre les droits de l’homme ou la démocratie. Cet article commence par retracer les origines de ce discours idéaliste américain. Puis, il tente d’analyser le rôle important joué par ce discours, suggérant qu’il est révélateur d’une nouvelle forme d’impérialisme. Elle est nouvelle dans la mesure où l’État-nation dominant se présente comme l’incarnation de la démocratie libérale faisant en sorte que ses propres intérêts coïncident avec ceux de la démocratie libérale. Le discours idéaliste serait, selon l’auteur, non pas une façade, mais plutôt un élément essentiel d’une nouvelle forme d’impérialisme car la relation étroite qui s’établit entre démocratie libérale et interventionnisme américain renforcerait les intérêts du capitalisme moderne.  

  11. IMPACT DE L’ORIENTATION SUR LE CONFORT THERMIQUE INTERIEUR DANS L’HABITATION COLLECTIVE : Cas de la nouvelle ville Ali Mendjeli, Constantine

    Directory of Open Access Journals (Sweden)

    S BELLARA LOUAFI

    2009-06-01

    Une étude est effectuée sur le site de la nouvelle ville ALI MENDJELI de Constantine afin de comparer et de chercher la relation entre les éléments du climat et l’orientation. Une investigation sur terrain (relevé des températures, humidité relatives, températures de surfaces est entreprise pour évaluer la réponse quantitative globale pour ce type de climat (semi aride. Parallèlement à cela une simulation à l’aide d’un logiciel TRNSYS (version 14.1 a été effectuée pour tester plusieurs possibilités d’orientations et d’améliorations afin de déterminer les éléments qui peuvent servir à des conditions meilleures. Les résultats montrent que la prise en compte du critère orientation fait participer le bâtiment à une conception plus performante thermiquement et plus économe énergétiquement.

  12. La « Nouvelle Mosquée » d’Alger. Le déroulement d’une procédure constructive au xviie siècle

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    Samia Chergui

    2012-01-01

    Full Text Available « La Nouvelle Mosquée » est érigée, à la fin du xviie siècle, dans la seule perspective de doter le rite hanéfite de sa propre Grande Mosquée. Cette nouvelle édification relève, à l’évidence, d’une procédure collective exceptionnelle, celle qu’entreprend la milice d’Alger, en l’occurrence le corps des janissaires, en puisant dans les fonds des Subul al-Khayrât. L’examen du livre de comptes qu’avait tenu cette institution ḥabûs, responsable de la gestion de la plupart des mosquées hanéfites et de leurs awqâf, aussitôt après le lancement du chantier, a permis de suivre le déroulement des travaux sur une période de presque dix années, soit de 1067/1656-1657 à 1076/1665-1666. Ce rôle de chantier apporte des éclairages significatifs notamment sur la nature, la provenance, la quantité et le coût des matériaux employés à la construction. Ils ne manquent pas non plus de documenter les aspects concernant leur fabrication, voire leur préparation, et quelque rares fois leur mise en œuvre ; une mise en œuvre qui, ici, revient à la dextérité de nombreux hommes, mobilisés dans le cadre corporatif. La comptabilité salariale, tenue en cette occasion, compte d’ailleurs parmi les rares initiatives de gestion qui ont permis, durant au moins une décennie, de consigner les plus amples détails non seulement sur le profil distinctif de l’ensemble de ces intervenants, mais également sur leur origine géographique, voire confessionnelle.

  13. Composição específica e abundância da ictiofauna do rio dos Padres, bacia do rio Iguaçu, Brasil = Specific composition and abundance of the ichthyofauna from Padres’ river, Iguaçu river basin, Brazil

    Directory of Open Access Journals (Sweden)

    Alessandro Gasparetto Bifi

    2006-07-01

    Full Text Available A composição e estrutura das comunidades de peixes podem ser consideradas como indicadores ecológicos e ambientais, constituindo-se desta forma como ferramenta para o manejo de bacias hidrográficas. O presente estudo objetivou levantar informaçõessobre a composição específica e abundância da ictiofauna do rio dos Padres. Foram realizadas amostragens trimestrais pelo método da pesca elétrica em dois pontos de coleta, um próximo à nascente e outro nas proximidades da foz. As coletas resultaram na captura de 7.026 exemplares pertencentes a 12 espécies distribuídas em sete famílias. A nascente apresentou uma alta densidade em número de indivíduos e menores valores de diversidade, eqüitabilidade e riqueza de espécies em relação à foz. O levantamento da composição específica e abundância da ictiofauna de um rio é de grande importância, por fornecer subsídio a futuros manejos e monitoramentos, tanto da comunidade aquática quanto do ambiente.The composition and structure of fish community can be considered ecological and environmental indicators. The present study aimed to survey information about the specific composition and abundance of theichthyofauna from Padres’ River. Quarterly samplings were accomplished by the method of the electrofishing in two sample sites, one close to the headwater and another in the proximities of the mouth. The collections resulted in the capture of 7026 specimens belonging to 12 species, which, in turn, fit in seven different families. The headwater presented a high density in number of individuals and smaller values of diversity, evenness and richness of species in relation to the mouth. The raising of the specific composition and abundance of the ichthyofauna of a river is of great importance for supplying subsidy to future managements and accompaniment, as much of the aquatic community as of the environment.

  14. Técnica para aislamiento de bacteriófagos específicos para E.coli DH5α a partir de aguas residuales

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    Gabriel Gaviria A.

    2012-04-01

    Full Text Available Objetivo. Establecer una técnica para el aislamiento de bacteriófagos a partir de aguas residuales específicos para E. coli DH5α. Materiales y métodos. Se tomó como base el método 1601 de la Agencia de Protección Ambiental de los Estados Unidos de América y un método de obtención de enterovirus a partir de aguas residuales. En el desarrollo del protocolo se realizaron múltiples pruebas utilizando como control positivo el bacteriófago T4 y los aislamientos de bacteriófagos obtenidos a partir de aguas residuales. Resultados. Se observó la formación de unidades formadoras de placa (UFP, se obtuvó la titulación de los bacteriófagos presentes en cada uno de los cultivos de E.coli DH5α, se determinaron las relaciones que existen entre la cuantificación de la formación de unidades formadoras de placa (UFP del tratamiento control y el tratamiento experimental y las respectivas características de las (UFP en cada uno de los experimentos realizados. Conclusiones. Se logró establecer un protocolo microbiológico para el aislamiento de bacteriófagos específicos para E. coli DH5α.

  15. Producción de café (Coffea arabica L. en respuesta al manejo específico de la fertilidad del suelo

    Directory of Open Access Journals (Sweden)

    Luz Adriana Lince Salazar

    2015-12-01

    Full Text Available El estudio de la variabilidad espacial es el principal insumo para el manejo específico por sitio-MES, con fines de optimizar los recursos, al reducir los costos de producción de los cultivos y el impacto negativo sobre el ambiente. Con el objetivo de determinar el efecto del MES en la producción del café, durante los años 2011 y 2012 se realizó un experimento del manejo de la fertilidad del suelo en café (Coffea arabica L., Variedad Castillo® en lotes con áreas diferentes (1,0, 2,0 y 3,5 ha, ubicados en tres fincas del departamento del Quindío, Colombia. Se evaluó el efecto de tres tratamientos en la producción de café cereza: i testigo sin fertilización; ii manejo de acuerdo a los resultados de los análisis de suelo, logrados mediante un muestreo convencional en zigzag y, iii manejo por sitio específico conforme lo indicaron las áreas homogéneas, obtenidas mediante mapas de variabilidad espacial. En ninguno de los lotes hubo efecto de los tratamientos, respuesta que se relacionó con uno o más de los siguientes factores: tiempo relativamente corto de evaluación, fertilidad del suelo, reservas de los nutrientes en las plantas, y el número reducido de repeticiones (tres por tratamiento.

  16. Modelado específico de procedimientos en el dominio de la Administración Electrónica

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    Aquilino Adolfo Juan Fuente

    2012-06-01

    Full Text Available Debido a la complejidad que reviste el dominio de la Administración Electrónica (AE, las desarrolladas deberán ser capaces de integrarse con la multitud de plataformas y sistemas que componen dicho dominio. El impacto de esta integración además mejorar la tramitación de procedimientos. En el presente trabajo se propone un lenguaje de modelado gráfico (DSL para la tramitación de procedimientos en el dominio específico de la AE. Este lenguaje parte de la definición de un metamodelo de AE que identifica sus principales entidades y define sus relaciones. Además se construyó una herramienta gráfica de modelado la cual fue probada con dos casos de estudio reales.

  17. Validation of a site specific management for plant nutrition in the cocoa crop in the province of Guayas, Ecuador Validación del manejo de la nutrición por sitio específico en una plantación de cacao en la provincia de Guayas, Ecuador

    Directory of Open Access Journals (Sweden)

    Mite Francisco

    2006-09-01

    Full Text Available

    Validation of a site specific management for plant nutrition in the cocoa crop in the province of Guayas, Ecuador. In the cocoa crop at Las Cañas Farm, Puerto Inca, Canton Naranjal, province of Guayas, Ecuador, a site specific management experiment for plant nutrition to optimize the use of fertilizers and to improve productivity was carried out. All soil and plant analysis, data yield and fertilization programs were carried out. With the aereal photograph and the map of the farm using geographic information system (GIS, the experimental plots were defined. The plantation was divided in grids of 200 by 100 m. To characterize the soil, a soil sampling until 120 cm in depth was carried out. On the other hand, to dertimine the soil spatial variability, two soil cores were taken. Each core was separated in to 0-20 and 20-40 cm segments. Six series and three classes of soil were identified for cocoa: The class II are soils “quite good”, its cover 162.4 ha and represent 52.5% of the area. The class III that are “goods soils” occupy 56.5 ha and represent 18.3% The class IV are “inadequate soils” with water levels at 40 to 90 cm in depth and horizonts with stones. This area cover 62.7 ha and represent 20.2% of the total area, in which it is necessary to improve the drainage system. It was found that with a population of 2,222 plants for ha, the total nutrient uptake of N, P2O5, K2O, CaO, MgO and S for ha was 101, 27, 204, 69, 42, and 6 kg respectively, and with a population of 833 plants per ha, the total nutrient uptake was 50, 23, and 101, 35, 21 and 6 kg. That implementation of the site specific management for soil fertility allowed to correct problems of soil acidity and iron toxicity to improve productivity in the plots at Las Cañas Farm.

    Key words: cacao, site specific; soil fertility; Ecuador.

  18. A new method for dosing uranium in biological media; Nouvelle methode de dosage de l'uranium dans les milieux biologiques

    Energy Technology Data Exchange (ETDEWEB)

    Henry, Ph; Kobisch, Ch [Commissariat a l' Energie Atomique, Centre de Production de Plutonium, Marcoule (France). Centre d' Etudes Nucleaires

    1964-07-01

    This report describes a new method for dosing uranium in biological media based on measurement of alpha activity. After treatment of the sample with a mineral acid, the uranium is reduced to the valency four by trivalent titanium and is precipitated as phosphate in acid solution. The uranium is then separated from the titanium by precipitation as UF{sub 4} with lanthanum as carrier. A slight modification, unnecessary in the case of routine analyses, makes it possible to eliminate other possible alpha emitters (thorium and transuranic elements). (authors) [French] Ce rapport decrit une nouvelle methode de dosage de l'uranium dans les milieux biologiques par mesure de l'activite alpha. Apres mineralisation de l'echantillon, l'uranium est reduit a la valence IV par le titane trivalent et precipite en milieu acide sous forme de phosphate. L'uranium est ensuite separe du titane par precipitation a l'etat d'UF{sub 4} avec du lanthane entraineur. Une legere modification, inutile dans le cas d'analyses de routine, permet d'effectuer l'elimination d'autres emetteurs alpha eventuels (thorium et transuraniens). (auteurs)

  19. Le commerce transnational « informel », vecteur d’une nouvelle hiérarchie de lieux. L’exemple de la périphérie urbaine de Salé (Maroc)

    OpenAIRE

    Bennafla, Karine

    2016-01-01

    Cet article examine les implications spatiales du commerce transnational dans les pays intermédiaires tel le Maroc. Si l’accentuation des réformes néo-libérales entraîne l’ouverture de grandes surfaces, de magasins franchisés ou de malls, elle ne signe pas la fin du commerce « informel », tout aussi globalisé. La nouvelle hiérarchisation de lieux sous l’effet du commerce transnational est peu abordée dans la littérature sur le commerce informel marocain. L’exemple d’une centralité marchande i...

  20. Tratamiento con inmunoterapia específica en niños con Rinitis Alérgica y/o Asma Bronquial. Área Norte. 2005 - 2007.

    Directory of Open Access Journals (Sweden)

    Matilde Iraida Morera Franco

    2007-10-01

    Full Text Available Se realizó un estudio descriptivo longitudinal durante el período Enero 2005_ Enero 2007 en el Policlínico Norte del municipio Sancti Spíritus. El universo estuvo constituido por el total de niños con edades de 2_15 años con enfermedades alérgicas, a los que se realizó pruebas de alergia e indicó tratamiento con inmunoterapia específica por vía subcutánea, la muestra estuvo formada por 75 pacientes con asma bronquial, rinitis alérgica y/o ambas enfermedades, con el objetivo de determinar el comportamiento del tratamiento con inmunoterapia específica se aplicó el método porcentual para el análisis de resultados, donde el grupo etáreo que predominó fue de 2 _5 años, más del 65 % de los pacientes tratados refirieron mejoría de los síntomas las causas más frecuentes de abandono de tratamiento fue la aparición de infecciones intercurrentes, no ocurrió reacción anafiláctica en ninguno de los casos estudiados, el tratamiento con inmunoterapia puede reducir el uso de otros tratamientos asociados como Intal, antihistamínicos, broncodilatadores y esteroides.

  1. Sensibilidade espécie-específica aos anti-inflamatórios não esteroidais: humanos X animais de companhia

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    E. Riboldi

    2012-02-01

    Full Text Available Este estudo forneceu subsídios para o melhor entendimento das intoxicações pelos anti-inflamatórios não esteroidais (AINES em humanos e animais de companhia. Os principais focos foram a diferença espécie-específica e os serviços prestados por Centros de Informação Toxicológica. Para tanto, foram utilizados dados referentes às intoxicações por AINES em pessoas, cães e gatos reportadas ao CIT/RS entre 2005 e 2009. Além disso, foram abordados, comparativamente, os dados do American Association of Poison Centers (AAPCC entre 2004 e 2008, bem como as referências na literatura acerca da sensibilidade espécie-específica. Constatou-se que a maioria das intoxicações por AINES, independentemente da espécie, abrangeu o cetoprofeno, o ibuprofeno e o diclofenaco, sendo 54% destes intencionais em humanos, destacando-se o diclofenaco. Em se tratando de animais de companhia, 73% das intoxicações em cães ocorreram pelo diclofenaco, e 60% dos acidentes em gatos foram ocasionados pelo ibuprofeno. Chama-se a atenção para a importância dos Centros de Informação Toxicológica como forma de assistência e prevenção desses acidentes, bem como para a venda indiscriminada desses fármacos, aliados à medicação extraprescrição - que leva, na maioria das vezes, cães e gatos ao óbito.

  2. Educación física en los libros de texto escolares anteriores al franquismo (II) : cartillas y manuales específicos

    OpenAIRE

    Galera, Antonio D.

    2017-01-01

    Las obras específicas para la Educación Física escolar anteriores a 1939 recomiendan como principales contenidos los juegos y la gimnasia educativa y en menor medida los paseos y excursiones, y el canto y la música; encontramos asimismo un aspecto avanzado de interdisciplinariedad: la recomendación de intercalar pausas activas entre materias no corporales, que sería recogida por el plan de 1937 de la República, pero nunca más posteriormente. No existen diferencias señaladas entre obras genera...

  3. Evaluación de la autopercepción del nivel de competencia profesional docente específica en robótica educativa

    OpenAIRE

    Fernandez Ruiz, Rosanna

    2016-01-01

    Como consecuencia de la creciente presencia de la robótica educativa en la educación formal, surge la pregunta de si el profesorado, artífice responsable del proceso de aprendizaje, se siente preparado para hacer frente a la incorporación generalizada en el aula de esta temática multidisciplinar. El presente estudio plantea una aproximación a la investigación en este tema; su objetivo principal es evaluar el nivel de autopercepción de las competencias profesionales docentes específicas en rob...

  4. Aplicación del sistema de recombinación específica de secuencia β-six al estudio de la regulación de la expresión génica en células eucariotas y modelos animales

    OpenAIRE

    Servert del Río, Pilar

    2016-01-01

    Las recombinasas específicas de secuencia son herramientas muy valiosas en la generación de modificaciones génicas condicionales. Estos sistemas permiten controlar la recombinación de forma específica de tejido, temporalmente, o ambas, y sortean diversas limitaciones de los sistemas de knockout (KO) convencionales, como la letalidad embrionaria o la generación de mecanismos compensatorios. Actualmente los sistemas Cre/loxP y Flp/FRT son los más empleados tanto en modelos animales como vegetal...

  5. Optimización del flujo de aire específico para la lixiviación estándar QT del mineral reducido en el proceso Caron

    Directory of Open Access Journals (Sweden)

    Antonio R. Chang-Cardona

    2013-03-01

    Full Text Available El propósito del artículo fue fundamentar experimentalmente la optimización del flujo de aire específico, para las condiciones de la prueba QT, a partir del contenido de Fe (II en el mineral reducido, aportado por la medición de los potenciales redox en la pulpa antes de airearla. Se estableció un procedimiento gráfico rápido, efectivo y económico que permite decidir la región óptima de los flujos de aire específicos para iniciar la lixiviación de la prueba QT y se demuestra la ventaja técnico-económica de utilizar valores del flujo de aire entre 1,3 y 1,8 m3/(t∙min, según varíe el contenido de Fe (II en el mineral reducido, con los que se garantizan máximos extractables de cobalto y de níquel. Se obtuvieron, además, los modelos empíricos (regresión polinómica de segundo orden que permiten predecir los extractables máximos de ambos metales bajo las condiciones experimentales estudiadas

  6. Trastorno del espectro autista y trastorno específico del lenguaje ¿Dos entidades diferentes o un continuo de manifestaciones neuropsicológicas?

    OpenAIRE

    Newra Tellechea Rotta

    2013-01-01

    El estudio de los niños con retraso en el desarrollo del lenguaje amerita un gran conocimiento del desarrollo neurológico típico; muchas veces, niños con retraso del lenguaje pueden presentar dificultades sociales y conductuales y puede ser difícil, en especial en etapas tempranas, diferenciar entre trastorno del espectro autista (TEA) y trastorno específico del lenguaje (TEL). Justamente por ello, teniendo en cuenta que muchas veces comparten síntomas comunes se ha postulado que estos trasto...

  7. Técnicas de utilização de dicionário como material didático na aula de LE para fins específicos

    Directory of Open Access Journals (Sweden)

    Camila Höfling

    2006-01-01

    Full Text Available Este artigo apresenta uma metodologia de trabalho relacionado ao uso do dicionário como material didático na aula de língua estrangeira com fins específicos, em atividades como desenvolvimento de vocabulário, gramática, pronúncia, uso de língua, cultura, leitura e interpretação de texto. Com certas técnicas, os professores podem aproveitar esse material em suas aulas e orientar seus alunos sobre qual dicionário adquirir e como empregá-lo de maneira eficiente. Oferecemos algumas sugestões de atividades para serem realizadas com o dicionário, seja em aulas para alunos particulares ou em cursos profissionalizantes em áreas específicas.This paper presents a methodology related to the use of dictionary as a pedagogic resource in the foreign language for specific purposes class, in activities developing vocabulary, grammar, pronunciation, language use, culture, and reading comprehension. By using some techniques, teachers can benefit from this resource in class and instruct their students about how to choose and use a dictionary properly. We offer some suggestions of activities to be performed both in private classes (one-to-one and with groups of professionals with specific purposes.

  8. Producción de café (Coffea Arabica L. en respuesta al manejo específico por sitio de la fertilidad del suelo

    Directory of Open Access Journals (Sweden)

    Luz Adriana Lince Salazar

    2016-12-01

    Full Text Available El estudio de la variabilidad espacial es el principal insumo para el manejo específico por sitio MES, con el fin de optimizar los recursos, al reducir los costos de producción de los cultivos y el impacto negativo sobre el ambiente. Con el objetivo de determinar el efecto del MES en la producción del café, durante los años 2011 y 2012 se realizó un experimento del manejo de la fertilidad del suelo en café (Coffea arabica L., Variedad Castillo® en lotes con áreas diferentes (1,0, 2,0 y 3,5 ha, ubicados en tres fincas del departamento del Quindío, Colombia. Se evaluó el efecto de tres tratamientos en la producción de café cereza: i testigo sin fertilización; ii manejo de acuerdo a los resultados de los análisis de suelo, logrados mediante un muestreo convencional en zigzag y, iii manejo por sitio específico conforme lo indicaron las áreas homogéneas, obtenidas mediante mapas de variabilidad espacial. En ninguno de los lotes hubo efecto de los tratamientos, respuesta que se relacionó con uno o más de los siguientes factores: tiempo relativamente corto de evaluación, fertilidad del suelo, reservas de los nutrientes en las plantas, y el número reducido de repeticiones (tres por tratamiento.

  9. Propuesta de Intervención en el Trastorno Específico del Lenguaje en una Unidad de Educación Especial

    OpenAIRE

    Fumanal-Solé, Anna

    2015-01-01

    El presente trabajo fin de grado plantea una propuesta de intervención adaptada a un niño con Trastorno Específico del Lenguaje que se encuentra en una escuela ordinaria dentro de una Unidad de Educación Especial. Cada vez más nos encontramos en las aulas ordinarias con niños con este tipo de trastorno y la mayoría de las veces no se sabe cómo abordar esta situación. Los profesores, no tienen la suficiente información y/o formación para poder ayudar a estos niños a obtener un aprendizaje ó...

  10. Metodología del entrenamiento de la resistencia específica en el tenis de competición. Revisión y propuesta

    OpenAIRE

    Baiget i Vidal, Ernest

    2011-01-01

    El principal objetivo del entrenamiento de la resistencia en el jugador de tenis de competición es mejorar la habilidad para realizar ejercicios de alta intensidad de manera repetida, recuperarse rápidamente de los esfuerzos y mantener dicha intensidad durante el juego, evitando o retardando de esta manera la aparición de la fatiga. Para el desarrollo de los sistemas energéticos específicos, el jugador debe dirigir los entrenamientos al desarrollo de las vías energéticas y patrones de movimie...

  11. Presença de auto-anticorpos não-tireóide-específicos no soro de pacientes com hipotireoidismo auto-imune

    OpenAIRE

    Soares Débora Vieira; Vanderborght Bart O. M.; Vaisman Mário

    2003-01-01

    Auto-anticorpos contra componentes não-específicos da tireóide foram encontrados no soro de pacientes com doença auto-imune da tireóide. Neste estudo avaliamos a presença de auto-anticorpos antinucleares (ANA), antimúsculo liso (anti-ML) e antimitocôndria (anti-Mc) no soro de pacientes com hipotireoidismo auto-imune (HA), comparando-os a controles saudáveis. Estudamos 70 pacientes com hipotireoidismo auto-imune (tireoidite de Hashimoto ou tireoidite atrófica ) e 70 controles saudáveis (sem di...

  12. Formación en género en la universidad: ¿materia de asignaturas específicas o de educación transversal?

    OpenAIRE

    Asián-Chaves, Rosario; Cabeza Verdugo, Francisca; Rodríguez Sosa, Vicente

    2015-01-01

    En este artículo se debaten los diferentes resultados de recibir una formación mediante asignaturas específicas o de forma transversal. La persistencia de estereotipos de género y la división sexual del trabajo están relacionadas con la falta de concienciación social, debida, entre otros factores, a la falta de formación en cuestiones de género. Esta formación es necesaria para reflexionar y "construir" los mensajes sobre género para develar las premisas ideológicas y...

  13. « Société de l'information », deuxième époque ? Transformation du statut de l'usage des TIC au travers des nouvelles propriétés des objets communicants

    OpenAIRE

    Weygand, Félix

    2007-01-01

    Notre contribution présente brièvement ce qu'on décrit actuellement comme de nouvelles ruptures techniques en cours dans les TIC. Il s'agira d'une part de repérer les « effets de mode » contenus dans ces descriptions, qui reprennent des appréhensions ou des enthousiasmes récurrents dès que l'on est confronté à des ruptures techniques, d'autre part de s'interroger sur la pertinence de nos outils d'analyse des innovations face à ces éventuelles ruptures. En effet, indépendamment de l'opinion op...

  14. Comparação dos efeitos da estimulação elétrica nervosa transcutânea em pacientes com lombalgia crônica não específica: ensaio clínico randomizado

    OpenAIRE

    Facci, Ligia Maria [UNIFESP

    2007-01-01

    Introdução: Os equipamentos de eletroterapia mais utilizados no tratamento da lombalgia crônica não-específica são a Estimulação Elétrica Nervosa Transcutânea (TENS) e a Corrente Interferencial (CI). Ainda são escassas, porém, as evidências que justifiquem a sua utilização na prática clínica. Objetivos: O objetivo deste estudo foi comparar os efeitos da Estimulação Elétrica Transcutânea (TENS) com os da Corrente Interferencial (CI) em pacientes com lombalgia crônica não-específica. Métodos: C...

  15. Assessment of radionuclide concentration in three crustaceans species of the bay of Bengal; Mesure de la concentration de radionucleides dans trois especes de crustaces du golfe du Bengale

    Energy Technology Data Exchange (ETDEWEB)

    Hasan, C.K.; Zafar, M. [Chittagong Univ., Institute of Marine Sciences (Bangladesh); Chowdhury, M.I.; Kamal, M. [Radioactivity Testing and Monitoring Laboratory, Bangladesh Atomic Energy Commission, Chittagong (Bangladesh)

    2006-10-15

    The natural ({sup 226}Ra, {sup 228}Th, {sup 232}Th and {sup 40}K) and anthropogenic ({sup 137}Cs) radionuclides concentrations in three crustaceans species (Penaeus monodon, Metapenaeus monoceros and Panulirus versicolor), collected from the bay of Bengal, were determined with an aim of assessing any internal radiation hazard due to consumption of the shell fishes and establishing a database for radioactivity levels of the species. Very low level of radioactivity was observed in all the species. The average activity of {sup 226}Ra observed in P. monodon was 1.21 {+-} 0.27 Bq kg{sup -1} fw; in M. monoceros was 0.70 {+-}0.08 Bq kg{sup -1} fw, and in Panulirus versicolor was 1.04 {+-} 0.09 Bq kg{sup -1} fw. The activity of {sup 232}Th observed in these species was 1.30 {+-} 0.37, 0.76 {+-} 0.34 and 1.32 {+-} 0.70 Bq kg{sup -1} fw, and {sup 228}Th was 0.55 {+-} 0.26, 0.31 {+-} 0.14 and 0.74 {+-} 0.22 Bq kg{sup -1} fw, respectively. The average activity of {sup 40}K observed in these species was 12.56 {+-} 1.18, 6.38 {+-}1.02 and 10.07 {+-} 1.52 Bq kg{sup -1} fw, respectively. The activity of radiocaesium ({sup 137}Cs) was below detection limit. The results indicate that the natural and artificial radionuclides observed in three crustaceans species are safe for human health. A significant relationship was observed between {sup 226}Ra and {sup 232}Th in both the P. monodon (r = 0.839, p {<=} 0.05, df = 4) and the Panulirus versicolor (r = 0.906, p {<=} 0.05, df = 4). (authors)

  16. Distúrbio Específico de Linguagem: Caracterização Neuropsicológica

    Directory of Open Access Journals (Sweden)

    Sandra Coelho

    2013-04-01

    Full Text Available O presente estudo pretende caracterizar o funcionamento neuropsicológico de crianças com Distúrbio Específico de Linguagem (DEL nas áreas da memória visual e verbal, atenção/funções executivas e funções visuopercetivas. A amostra é constituída por 28 crianças com DEL e 28 crianças sem DEL, sendo ambos os grupos equiparáveis em termos de idade, género, ano de escolaridade e nível socioeconómico. Para o efeito, recorreu-se a testes da Bateria de Avaliação Neuropsicológica de Coimbra e os dados foram analisados através de testes estatísticos paramétricos e não paramétricos. De um modo geral, os resultados obtidos diferenciam os desempenhos das crianças com DEL dos observados em crianças sem DEL. Em concreto, e comparativamente ao grupo de controlo, o grupo de crianças com DEL apresentou resultados significativamente inferiores na memória visual e memória verbal, na atenção seletiva e sustentada, nas funções executivas, na fluência verbal semântica, nas funções visuopercetivas e na velocidade de processamento.

  17. Teoría de situación específica de autotrascendencia en dependientes del alcohol en proceso de recuperación

    OpenAIRE

    Linda Azucena Rodríguez-Puente; María Magdalena Alonso-Castillo

    2016-01-01

    La creación de modelos y teorías de enfermería, enfocadas en fenómenos específicos, contribuye a la práctica y el desarrollo de la dis-ciplina de enfermería.Objetivo:presentar una derivación teórica y proponer un modelo sobre la teoría de autotrascendencia en personasdependientes del alcohol en proceso de recuperación.Materiales y métodos:se realizó una derivación teórica mediante la metodologíapropuesta por Walker y Avant.Resultados:adaptación del Modelo de Autotrascendencia en personas depe...

  18. Teoría de situación específica de autotrascendencia en dependientes del alcohol en proceso de recuperación

    OpenAIRE

    Rodríguez-Puente, Linda Azucena; Alonso-Castillo, María Magdalena

    2016-01-01

    La creación de modelos y teorías de enfermería, enfocadas en fenómenos específicos, contribuye a la práctica y el desarrollo de la disciplina de enfermería. Objetivo: presentar una derivación teórica y proponer un modelo sobre la teoría de autotrascendencia en personas dependientes del alcohol en proceso de recuperación. Materiales y métodos: se realizó una derivación teórica mediante la metodología propuesta por Walker y Avant. Resultados: adaptación del Modelo de Autotrascendencia en person...

  19. Modelo de gestión para cambio de plataforma tecnológica en entidades financieras.Caso específico Banco mediano del sector comercial

    OpenAIRE

    Sinmaleza Ramírez, Geoconda

    2014-01-01

    176 hojas : ilustraciones, 29 x 21 cm + CD-ROM 2163 La presente tesis corresponde a la implementación del Modelo de Gestión para el cambio de plataforma tecnológica en entidades financieras. Caso específico Banco mediano del sector comercial. El Banco en Análisis es una institución del sistema financiero nacional, clasificada por la Superintendencia de Bancos como un Banco mediano del segmento comercial, el mismo mantiene una alianza estratégica con un Banco de Alianza del sistema fina...

  20. Caracterización neuropsicológica en niños con diagnóstico de trastorno específico de aprendizaje en Cali, Colombia

    OpenAIRE

    María Cristina Quijano Martínez; Mónica Aponte Henao; Diana María Alejandra Suarez García; María Teresa Cuervo Cuesta

    2013-01-01

    El objetivo de este estudio fue comparar las funciones cognitivas en niños con antecedente de Trastorno Específico de Aprendizaje (TEA) en colegios privados de la ciudad de Cali, Colombia con un grupo control (GC). La muestra estuvo conformada por 37 sujetos con TEA y 28 sujetos en el grupo control (GC), de estrato socioeco- nómico medio-alto. La edad promedio fue de 9 años y la escolaridad de 4°. Los instrumentos utilizados para selección de los grupos fueron el Cuestionario de problemas de...

  1. Análisis de la condición física en jóvenes jugadores de fútbol en función de la categoría de formación y del puesto específico

    Directory of Open Access Journals (Sweden)

    Fernando Calahorro Cañada

    2012-09-01

    Full Text Available El objetivo principal de este trabajo es valorar el nivel de condición física en jugadores de 13 a 18 años, determinando posibles diferencias respecto a la categoría de formación (infantil, cadete y juvenil y el puesto específico (porteros, defensas, centrocampistas, delanteros. Se seleccionaron 66 jugadores (con una edad de 15,46 ± 1,83 años, una masa de 63,33 ± 9,51 kg, una estatura de 171,44 ± 8,38 cm y una experiencia previa competitiva de 9,16 ± 1,93 años. Se determinó la composición corporal (INBODY 720, flexibilidad isquiosural (test sit and reach, salto con contramovimiento y abalakov (plataforma nusclelab 4000, y consumo máximo de oxígeno (test de course navette. Se observan diferencias por puesto específico y categoría de formación en la composición corporal y condición física (infantiles respecto cadetes y juveniles, y se observan diferencias fundamentalmente entre los puestos específicos de defensas cadetes respecto a los juveniles, y entre el puesto especifico de categoría infantil respecto al resto.

  2. IFP Energies nouvelles. 2016 Activity Report - Innovating for energy

    International Nuclear Information System (INIS)

    2017-01-01

    IFP Energies Nouvelles is a major research and training player in the fields of energy, transport and the environment. From research to industry, technological innovation is central to all its activities, structured around three strategic priorities: sustainable mobility, new energies and responsible oil and gas. As part of the public-interest mission with which it has been tasked by the public authorities, IFPEN focuses on: - providing solutions to take up the challenges facing society in terms of energy and the climate, promoting the transition towards sustainable mobility and the emergence of a more diversified energy mix; - creating wealth and jobs by supporting French and European economic activity, and the competitiveness of related industrial sectors. An integral part of IFPEN, its graduate engineering school - IFP School - prepares future generations to take up these challenges. IFPEN has proven expertise across the entire value chain, from fundamental research to innovation. It is funded both by a state budget and by its own resources provided by industrial partners. The latter account for over 50% of IFPEN's total budget, a configuration that is quasi unique in France. The aim of IFPEN's R and I programs is to overcome existing scientific and technological challenges in order to develop innovations that can be used by industry. IFPEN's fundamental research program aims to create a bedrock of knowledge essential for the development of innovations. The scientific expertise of IFPEN's researchers is internationally recognized and they are regularly consulted by the public authorities to provide their insight in their specific fields to inform the decision-making process. IFPEN's economic model is based on the transfer to industry of the technologies developed by its researchers. This technology transfer to industry generates jobs and business, fostering the economic development of fields and approaches related to the mobility, energy and eco-industry sectors

  3. Construção de iniciadores e otimização de ensaios de PCR e de nested-PCR para a detecção específica de Tritrichomonas foetus Primers design and optimization of PCR and nested-PCR assays for the specific detection of Tritrichomonas foetus

    Directory of Open Access Journals (Sweden)

    Paula Rogério Fernandes

    2008-09-01

    Full Text Available Tritrichomonas foetus é um protozoário patogênico responsável por doença venérea em bovinos conhecida por tricomonose genital bovina. A tricomonose bovina é uma doença venérea causada pelo protozoário cujo habitat natural é o trato genital. Os protocolos já desenvolvidos para o diagnóstico deste parasito por PCR, apesar de serem eficazes na identificação do DNA genômico alvo, promovem algumas amplificações inespecíficas ou são incapazes de distinguir T. foetus das outras espécies do gênero. O presente trabalho foi desenvolvido com o objetivo de estabelecer e otimizar protocolos de ensaio de PCR e nested-PCR para o diagnóstico específico de T. foetus, empregando-se novos iniciadores, selecionados do alinhamento das seqüências dos genes 18S rRNA, 5,8S rRNA, 28S rRNA e dos espaços transcritos do rDNA (ITS1 e ITS2. Um par de iniciadores foi construído para amplificação gênero-específica de um fragmento de 648 pares de base e outros dois para a obtenção de produtos espécie- específicos de 343 e 429 pb. Nenhuma reação cruzada foi observada frente ao DNA genômico de Bos taurus ou de microrganismos responsáveis por infecções genitais. A sensibilidade dos ensaios de PCR e de nested-PCR apresentados neste estudo permitiu um limiar de detecção de até dois parasitos.Tritrichomonas foetus is a pathogenic protozoan that causes a venereal disease in cattle known as bovine genital tricomonosis. In spite of the efficacy to recognize the target genomic DNA, the protocols so far developed for the diagnosis of this organism by PCR promote some inespecific amplifications or they are unable to discriminate T. foetus against other species within the genus. The objective of this study was to assess and optimize PCR and nested-PCR assays for the specific diagnosis of T. foetus, using novel primers selected from the alignment of sequences of the genes 18S rRNA, 5.8S rRNA, 28S rRNA and of the internal transcribed spacers of the

  4. Análisis de la influencia de la razón de transmisión en la velocidad específica de deslizamiento

    Directory of Open Access Journals (Sweden)

    Orestes González-Quintero

    2010-01-01

    Full Text Available Las transmisiones por engranajes pueden sufrir múltiples deterioros durante su funcionamiento y entre las fallas más comunes, propia de las transmisiones no lubricadas, se encuentra el desgaste, que se caracteriza por la disminución del espesor del diente en la zona de la cabeza y del pie, que es donde mayor velocidad de deslizamiento existe. En este trabajo se exponen las ecuaciones básicas para el cálculo de las velocidades de deslizamiento, de desplazamiento y específica de deslizamiento, finalmente, utilizando un programa elaborado en una Hoja de Cálculo de Excel y con el auxilio del software AutoCAD fueron evaluados cuatro casos de transmisiones por engranajes cilíndricos de dientes rectos, para determinar la influencia de la relación de transmisión en la velocidad específica de deslizamiento en ruedas dentadas cilíndricas de dientes rectos.Gear transmissions can suffer multiple fails during their operation, being wear one of the most common, this fail is characteristic of the not lubricated transmissions, and it is characterized by the decrease of the thickness of the tooth up and down the tooth height that is where main sliding velocity exists. In this work the essential equations for the calculation of the sliding, displacement and specific sliding velocity, are exposed, finally, using a program elaborated in a EXCEL spreadsheet and with the employment of the software AutoCAD, four cases of spur gear transmissions were evaluated, to determine the influence of the velocity ratio in the specific sliding velocity.

  5. La evaluación específica del síndrome de Burnout en psicólogos: el "inventario de Burnout de psicólogos"

    OpenAIRE

    ANA MARIA T. BENEVIDES PEREIRA; BERNARDO MORENO-JIMÉNEZ; EVA GARROSA HERNANDEZ; JOSÉ LUIS GONZALEZ GUTIÉRREZ

    2002-01-01

    La investigación del "burnout" se ha extendido a una amplia variedad de profesiones, asistenciales y no asistenciales, sin embargo el estudio del burnout en psicólogos es relativamente escaso a pesar de ser una profesión con alto riesgo de burnout. El "Inventario de Burnout de Psicólogos" (IBP) es un instrumento elaborado específicamente para evaluar los procesos de burnout en los psicólogos que consta de tres partes: características profesionales, dimensiones del burnout y sintomatología de ...

  6. Tratamiento con inmunoterapia específica en niños con Rinitis Alérgica y/o Asma Bronquial. Área Norte. 2005 - 2007.

    OpenAIRE

    Matilde Iraida Morera Franco; Rigoberto Antonio García Chang; María Mercedes Gómez Paz

    2007-01-01

    Se realizó un estudio descriptivo longitudinal durante el período Enero 2005_ Enero 2007 en el Policlínico Norte del municipio Sancti Spíritus. El universo estuvo constituido por el total de niños con edades de 2_15 años con enfermedades alérgicas, a los que se realizó pruebas de alergia e indicó tratamiento con inmunoterapia específica por vía subcutánea, la muestra estuvo formada por 75 pacientes con asma bronquial, rinitis alérgica y/o ambas enfermedades, con el objetivo de determinar ...

  7. Valoración funcional y bioenergética de la resistencia específica en jugadores de tenis

    Directory of Open Access Journals (Sweden)

    Ernest Baiget Vidal

    2008-12-01

    Full Text Available La investigación consta de tres estudios interrelacionados. Un primer estudio comprende el diseño de una prueba en pista para evaluar la resistencia específica en tenis (SET-Test, Specífic Endurance Tennis Test, que se valida mediante un análisis de su fiabilidad –en 12 jugadores de competición– y de su validez –con una muestra de 38 jugadores. En un segundo estudio se describen las características funcionales de los tenistas de competición evaluadas mediante la aplicación del SET-Test en la muestra de 38 jugadores, clasificados según su ITN (International Tennis Number, y se analiza la capacidad predictiva de la prueba respecto del nivel competitivo de los tenistas. En el tercer estudio se caracterizan las demandas bioenergéticas de un partido de individuales mediante el registro de parámetros ergoespirométricos en competición simulada a lo largo de 20 sets y en 20 jugadores. Del diseño y validación de la prueba se concluye que el SET-Test es una prueba de campo objetiva, fiable y válida para evaluar la resistencia específica en tenistas, que permite realizar una evaluación directa de parámetros ergoespirométricos sin que eso afecte significativamente a los parámetros estudiados y que es válida para determinar de manera indirecta el segundo umbral ventilatorio (UV2. La variable de efectividad técnica, valorada como porcentaje de aciertos en precisión y potencia de los golpes durante la prueba, se muestra como el mejor indicador de rendimiento, seguido de cerca por los parámetros fisiológicos de resistencia y potencia aeróbica (UV2 y VO2màx, parámetros que explican buena parte de la variancia en el nivel competitivo de los jugadores (56 y 53%, respectivamente. Posiblemente el resto de la variabilidad pueda ser explicada por su nivel en habilidades tácticas, estratégicas o psicológicas. Se confirma la existencia de un punto de deflexión de la frecuencia cardiaca observable en el 92% de los sujetos

  8. Wikis en lenguas para fines específicos y su traducción

    Directory of Open Access Journals (Sweden)

    Raquel Lázaro Gutiérrez

    2010-01-01

    Full Text Available Las herramientas Wiki pueden llegar a ser muy útiles tanto en la enseñanza de lenguas en general como en la traducción, sobre todo si se tiene en cuenta que, hoy en día, dentro del nuevo marco del Espacio Europeo de Educación Superior, los docentes tienen que enfrentarse a dificultades como grupos numerosos de alumnos, pocas clases presenciales y competencias transversales añadidas al contenido de las materias. Por este motivo, que una herramienta como las wikis, que permita trabajar fuera del aula y con la cual el estudiante puede realizar trabajos individuales y en grupo, conectado y en contacto con el resto de sus compañeros y profesores, resulta especialmente útil. Mientras que la sencillez de estas herramientas permite al docente diseñar actividades atractivas y útiles con un esfuerzo y conocimientos tecnológicos relativamente mínimos, para los estudiantes supone una gran oportunidad para aprender a trabajar con las TIC y de manera grupal y colaborativa. En este capítulo se describen las tareas y actividades que se diseñaron y pusieron en práctica para las asignaturas del Máster Oficial en Comunicación Intercultural, Interpretación y Traducción en los Servicios Públicos y para las asignaturas de inglés para fines específicos del postgrado y grado de la Facultad de Derecho de la Universidad de Alcalá, centrándonos de manera especial en su diseño, las dificultades y ventajas que plantearon y la respuesta que se obtuvo por parte del alumnado.

  9. Estudio sobre los procedimientos de identificación del trastorno específico del lenguaje

    Directory of Open Access Journals (Sweden)

    Jesús Vera

    2012-12-01

    Full Text Available Los procedimientos de estudio y tratamiento de los Trastornos Específicos del Lenguaje (TEL son aspectos que son poco conocidos debido fundamentalmente a una serie de factores entre los que se encuentran un todavía no alcanzado consenso sobre la naturaleza del TEL, un amplio abanico de diferentes profesionales tratando de analizarlo desde posiciones marcadamente distantes como son la perspectiva clínica e investigadora y una abundante y en ocasiones contradictoria literatura relativa al mismo. Los objetivos perseguidos en este estudio han sido: a caracterizar el tipo de profesionales que en nuestro entorno identifican y tratan el TEL; b conocer la conceptualización del TEL que realizan dichos profesionales; c averiguar los tipos de procedimientos de identificación del TEL en relación a los modelos teóricos declarados. Mediante una encuesta elaborada al efecto se han obtenido resultados que permiten constatar la gran diversidad de profesionales que abordan el TEL en nuestro entorno cultural; que no existe un grado de consenso suficiente entre ellos ni sobre la caracterización del trastorno ni sobre los procedimientos diagnósticos utilizados y que los diagnósticos de dichos profesionales no responden a los tres criterios básicos que en la actualidad se utilizan en la identificación del TEL: discrepancia, especificidad y marcadores de riesgo.

  10. Relação entre vocabulário receptivo e expressivo em crianças com transtorno específico do desenvolvimento da fala e da linguagem

    Directory of Open Access Journals (Sweden)

    Aline Citino Armonia

    2015-06-01

    Full Text Available OBJETIVO: comparar os índices de vocabulário receptivo e expressivo de crianças com Transtorno Específico do Desenvolvimento da Fala e da Linguagem. MÉTODOS: trata-se de estudo transversal, com amostra constituída por 21 crianças com Transtorno Específico do Desenvolvimento da Fala e da Linguagem, avaliadas em clínica-escola de Fonoaudiologia, sendo 9 crianças do gênero feminino e 12 crianças do gênero masculino, com idades entre 3 e 11 anos. Para este estudo foi utilizada a Prova de Vocabulário do Teste ABFW e o Teste de Vocabulário por Imagem Peabody - TVIP. RESULTADOS: 80,95% das crianças apresentaram desempenho adequado na avaliação do vocabulário expressivo, enquanto 52,4% apresentaram desempenho compatível com a faixa etária na avaliação do vocabulário receptivo. Não houve significância estatística. CONCLUSÃO: as crianças apresentaram melhor desempenho em avaliação do vocabulário expressivo em relação ao vocabulário receptivo. Esses dados comprovam a necessidade de um olhar atento e investigativo do fonoaudiólogo para os aspectos tanto de produção quanto de compreensão da linguagem.

  11. Redução da influência da massa específica na determinação do teor de umidade de sementes de trigo Density-independent moisture content measurement of wheat seed

    Directory of Open Access Journals (Sweden)

    Pedro Amorim Berbert

    1999-04-01

    Full Text Available A medição da capacitância e da condutância de um capacitor contendo amostras de trigo permite a determinação de duas de suas propriedades dielétricas: a permissividade relativa (épsilon' e o fator de perda dielétrica (épsilon". A utilização dessas propriedades, medidas simultaneamente em duas freqüências de oscilação do campo elétrico, permite reduzir ou eliminar o efeito da massa específica aparente na determinação do teor de umidade do trigo. Tal procedimento torna possível o monitoramento contínuo e em tempo real, sem a necessidade de retirar amostras, do teor de umidade de uma coluna de grãos em movimento, situação em que ocorrem as maiores variações na massa específica do produto. O objetivo deste trabalho consistiu na obtenção de equações que permitam reduzir ou eliminar o efeito da massa específica na determinação em linha do teor de umidade do trigo. Foram utilizadas amostras das variedades Hussar, Mercia e Hereward com teor de umidade entre 11% e 22% b.u. e massa específica no intervalo 666 kg m-3 Measurement of the capacitance and conductance of a capacitor filled with samples of wheat allows the determination of two dielectric properties of the material: the relative permissivity (epsilon', and the dielectric loss factor (epsilon". The use of these two properties, measured simultaneously at two different frequencies of the electric field, permits bulk density-independent measurement of moisture content of wheat. This procedure makes it possible to monitor moisture content continuously, and on-line, of a moving column of grain, a situation where the greatest variations in bulk density are to be expected. The objective of the present research was the derivation of density-independent equations for the determination of moisture content of wheat. Samples of varieties Hussar, Mercia and Hereward at moisture contents ranging from 11% to 22% w.b., and bulk densities ranging from 666 to 873 kg m-3 have been

  12. Q’eros, Perú: la regeneración de relaciones cosmológicas e identidades específicas a través de la música

    Directory of Open Access Journals (Sweden)

    Holly Wissler

    2010-12-01

    Full Text Available Uno de los principales objetivos de la música de la comunidad andina Q’eros es re-generar y re-crear buenas relaciones con el cosmos y con el mundo espiritual en el que cree. En esta ponencia analizo el modo cómo tanto las canciones indígenas de Q’eros como la música y danza que la comunidad ha incorporado recientemente a la peregrinación más grande del Perú -Qoyllurit’i- logran la eficacia del propósito a través de similares técnicas de producción de sonido y estética. Aunque los rasgos específicos de ambos estilos (estructura, escala e instrumentación son significativamente diferentes, yo me ocupo de la forma en que la producción musical de ambos tipos comparte el mismo enfoque y sirve a la misma meta, ya sea que se trate de un ritual íntimo dentro de la comunidad o de uno compartido con miles de otras personas de la gran región. Además, la interpretación de los dos tipos de música sirve como indicador de identidad específica para los q’eros, dependiendo de su uso contextual y la identidad deseada en el momento. Es decir, las elecciones musicales les permiten cambiar de identidad entre la de q’eros tradicionales en su comunidad natal, y la de misti (mestizo en Qoyllurit’i.

  13. IFP Energies Nouvelles. 2014 Activity report - Innovating for energy

    International Nuclear Information System (INIS)

    2015-01-01

    As part of the public-interest mission with which it has been tasked by the public authorities, IFP Energies Nouvelles (IFPEN) focuses on: - providing solutions to take up the challenges facing society in terms of energy and the climate, promoting the emergence of a sustainable energy mix, - creating wealth and jobs by supporting French and European economic activity, and the competitiveness of related industrial sectors. Despite the current economic environment, 2014 was a good year for IFPEN. In the field of renewable energies, major milestones were reached in two significant projects dedicated to the production of second generation biofuels in which IFPEN is very actively involved: processes developed in Futurol TM are already in the pre-marketing phase, while the construction of the two pilot units for the BioTfueL project has just been launched. In the field of ocean energies, IFPEN research has led to the first partnership agreements relating to floating wind turbines anchor technologies and command control systems for wind energy and wave energy conversion. In the transport sector, game-changing concepts are beginning to emerge, such as smart battery charging and a Rankine cycle system for an internal combustion engine transforming combustion heat into energy. In addition, IFPEN have joined forces with innovative SMEs to boost their research in the fields of electric power-trains and power electronics. Finally, IFPEN launched an eco-driving application that has proved extremely popular with the public. Turning now to oil and gas, IFPEN continued to expand its range of basin and reservoir simulation, modeling and characterization software, and it signed several contracts in the field of chemical enhanced recovery solutions with its EOR (Enhanced Oil Recovery) Alliance TM partners. IFPEN also developed new generations of high-performance catalysts and improved the conversion rate of its processes to enable refiners to convert increasingly heavy crudes and

  14. Caracterización neuropsicológica en niños con diagnóstico de trastorno específico de aprendizaje en Cali, Colombia

    Directory of Open Access Journals (Sweden)

    María Cristina Quijano Martínez

    2013-01-01

    Full Text Available El objetivo de este estudio fue comparar las funciones cognitivas en niños con antecedente de Trastorno Específico de Aprendizaje (TEA en colegios privados de la ciudad de Cali, Colombia con un grupo control (GC. La muestra estuvo conformada por 37 sujetos con TEA y 28 sujetos en el grupo control (GC, de estrato socioeco- nómico medio-alto. La edad promedio fue de 9 años y la escolaridad de 4°. Los instrumentos utilizados para selección de los grupos fueron el Cuestionario de problemas de aprendizaje CEPA, subescalas de la Minientrevista neuropsiquiátrica internacional para niños y adolescentes (M.I.N.I.- N-A, la Escala de inteligencia de Wechsler para niños WISC-R y subescalas de lectura, escritura y aritmética de la Batería de Evalua- ción Neuropsicológica Infantil (ENI. Las funciones Cognitivas, fueron evaluadas con subescalas de la ENI. Los resultados muestran diferencias estadísticamente significativas (p≤0.05 entre las medianas de funciones cognitivas de atención, memoria (codificación y evocación, comprensión del lenguaje, habilidades construccionales, espaciales y funciones ejecutivas. En conclusión, los niños con TEA presentan alteraciones neuropsicológicas subyacentes, que interfieren en el desempeño de tareas escolares. Convencionalmente se hacen intervenciones en lectura, escritura y cálculo, y no en sus prerrequisitos, por tanto, los resultados sugieren que se debe orientar la intervención a la estimulación de los procesos cognitivos comprometidos y no al síntoma específico.

  15. The diagnostic importance of species specific and cross-reactive components of Taenia solium, Echinococcus granulosus, and Hymenolepis nana Importância diagnóstica da reação cruzada espécie-específica de componentes da Taenia solium, Echinococcus granulosus e Hymenolepis nana

    Directory of Open Access Journals (Sweden)

    Teresa Montenegro

    1994-08-01

    .nana a 49 e 66K-Da e no E.granulosus a 17-21 K-Da e 27-32 K-Da. No extrato não purificado de cisticercose uma banda específica não glicoproteica estava presente a 61-67 K-Da além das bandas de glicoproteínas específicas de 50, 42, 24, 21, 18, 14 e 13 K-Da. Nenhum destes soros de pacientes com infecção por H.nana ou E.granulosus reagiu de forma cruzada com estas sete bandas de glicoproteína consideradas específicas à infecção por T.solium

  16. Isabel Georges et Yumi Garcia dos Santos, Les nouvelles politiques sociales brésiliennes dans la santé et l’assistance aux personnes – Production locale de service et rapports de genre (As novas políticas

    OpenAIRE

    Azaïs, Christian

    2017-01-01

    Cet ouvrage, publié en 2016 au Brésil, est le fruit de plusieurs années de recherches menées par deux sociologues. Il pose la question de l’émergence de « nouvelles » politiques sociales en Amérique latine et plus particulièrement au Brésil, ces vingt dernières années, et de leur signification une trentaine d’années après la redémocratisation du pays. Ce pays, souvent présenté comme le laboratoire d’expérimentation des politiques sociales, notamment avec le programme-phare Bolsa Família (Bour...

  17. Diseño y validación de la plataforma PLEVALEX como respuesta a los retos de diseño de exámenes de lenguas para fines específicos

    Directory of Open Access Journals (Sweden)

    Jesús García Laborda

    2007-10-01

    Full Text Available Este artículo describe las necesidades de diseño y validación que llevaron al desarrollo de la Plataforma de Evaluación Valenciana de Lenguas Extranjeras (PLEVALEX para exámenes orales y escritos a través de Internet. Aunque la plataforma es multilingüe, en este trabajo nos referiremos a su uso para exámenes de inglés con fines específicos. La plataforma fue desarrollada por el Grupo de Investigación en Lenguas para Fines Específicos (GILFE de la Universidad Politécnica de Valencia. La validación se hizo en cooperación con el Centro de Investigación en Tecnologías Gráficas (CITG de la misma universidad. La prueba de ergonomía se realizó a tres niveles: diseñadores, expertos y usuarios. El seguimiento realizado con estudiantes de comunicación audiovisual y profesores de la Universidad Politécnica de Valencia indicó una reacción positiva hacia la plataforma de exámenes en red.

  18. Interoperabilidad entre el LMS Moodle y las aplicaciones educativas de propósito específico utilizando servicios del IMS-LTI

    Directory of Open Access Journals (Sweden)

    Cynthia Guadalupe Soto Cardinault

    2015-10-01

    Full Text Available Compartir y reutilizar recursos digitales de alta calidad resulta una necesidad creciente en materia educativa; por ello, es conveniente conocer mecanismos de interoperabilidad con sistemas de gestión de aprendizaje transparentes de implementar y que permiten aprovechar al máximo las características propias de su diseño instruccional. En este artículo, presentamos una introducción al estándar de interoperabilidad IMS-LTI que ayuda a que esto sea posible y un breve análisis comparativo respecto al estándar SCORM, ambos ampliamente aceptados y usados en este contexto; asimismo, ejemplificamos el proceso de interoperabilidad entre una aplicación de aprendizaje de propósito específico (alojada en general en forma remota y Moodle, una plataforma educativa empleada en el ámbito educativo.

  19. Une Nouvelle Forme d’Autobiographie dans Les Années d’Annie Ernaux: Autobiographie Impersonnelle

    Directory of Open Access Journals (Sweden)

    Seçil Yücedağ

    2017-12-01

    Full Text Available Annie Ernaux, considérée comme l’une des femmes écrivaines les plus célèbres du XXIe siècle, a exprimé l’angoisse commune de son âge et de son passé en rédigeant Les Années. Elle n’avait pas non seulement le but de décrire sa vie, mais aussi d’esquisser l’histoire de la société française à laquelle elle appartient. Lorsqu’elle est venue au monde en 1940, le monde était au seuil de la Seconde Guerre mondiale. Etant élevée dans cette atmosphère chaotique, elle a appris beaucoup de choses de sa société, de sa famille et de son environnement. Annie Ernaux a découvert le monde comme une jeune fille, une mère, une épouse et une grand-mère. Ses expériences sociales et familiales l’ont beaucoup mûrie et elle a commencé à rédiger ses pensées. Ses souvenirs ont fait partie de ses écritures autobiographiques. Dans Les Années, Annie Ernaux a profité de toutes ses expériences personnelles et sociales avec de différents moyens. Elle a essayé d’établir des liens entre l’histoire de sa vie et celle de la société. Elle a accordé une importance à la vie sociale plutôt que sa propre vie dans Les Années. Elle y a développé des propres techniques d’écriture en se servant des photos familiales et personnelles, d’un film, d’une vidéo, des marques de publicité, des chansons, d’un tableau, des notes de journal ainsi que des événements sociologiques et historiques. Elle a ainsi créé une nouvelle forme d’autobiographie : autobiographie impersonnelle.

  20. Estudo da massa específica básica e da variação dimensional da madeira de três espécies de eucalipto para a indústria moveleira

    Directory of Open Access Journals (Sweden)

    Camila Santos Doubek Lopes

    2011-06-01

    Full Text Available A utilização da madeira de árvores de espécies de reflorestamento pela indústria moveleira tem apresentado tendência de crescimento nos últimos anos. Nesse sentido, no presente trabalho foram determinadas a massa específica básica e variação dimensional da madeira de árvores de Eucalyptus grandis, Eucalyptus dunnii e Eucalyptus urophylla, de 18 anos, para a aplicação como componentes de madeira maciça em movelaria. Os ensaios laboratoriais para a avaliação da massa específica básica e da variação dimensional da madeira nos sentidos radial e longitudinal do tronco das árvores de eucaliptos foram realizados de acordo com a NBR 7190/96. Os resultados da análise da madeira das espécies de eucalipto foram submetidos ao Teste de Homogeneidade, Análise de Variância, Teste de Tukey e Correlação de Pearson e comparados com o desempenho da madeira de sucupira (Bowdichia nitida e de cumaru (Dipteryx odorata utilizadas na indústria moveleira. Verificou-se para a madeira de Eucalyptus grandis menor valor de variação dimensional, sendo a mais indicada para componentes de móveis que exigem elevada estabilidade dimensional, além de peças de maior superfície. A madeira dessa espécie apresentou índice de variação dimensional compatível com o de espécies nativas utilizadas na indústria moveleira. Verificou-se, ainda, variação radial das propriedades da madeira, com alta correlação entre a massa específica básica e a variação dimensional. No sentido longitudinal, a base do tronco das árvores de eucalipto mostrou-se com a região de madeira de maior estabilidade dimensional.

  1. Sobre conhecimento geral e específico: destaque substantivos e adjetivos para uma epistemologia da Enfermagem Sobre el conocimiento general y específico: destaques substantivos y adjetivos para una epistemología de la Enfermería General and specific knowledge: substantive and adjective detachs to an epistemology of nursing

    Directory of Open Access Journals (Sweden)

    Vilma de Carvalho

    2007-06-01

    Full Text Available Temática: Trata de trabalho sobre o conhecimento geral e específico no interesse da Enfermagem - ensino e prática da arte de cuidar, com implicações para aspectos destacados de investigar a realidade e buscar respostas relativas à construção científica. Objetivo: Clarear definições pertinentes ao saber, ao conhecimento em si e à investigação na enfermagem. Metodologia discursiva com abordagem filosófica no que concerne a proposições e argumentos quanto aos aspectos teóricos e práticos que abrangem o saber, a consciência (subjetividade e a realidade (objeto estudado, no plano do pensamento e do conhecimento científico. Na análise dos aspectos destacados, alguns conceitos epistemológicos servem para conferir questões do saber profissional e da ciência enquanto correlacionadas à prática do ensino e da assistência na enfermagem. A problemática do conhecimento geral e específico condiz não só com dificuldades conceituais e de domínio do conhecimento em si, mas também com a experiência de formar a consciência crítica e a competência profissional frente aos desafios da prática total da enfermagem - ensino, pesquisa e extensão/assistência, com repercussões para a formação do perfil profissional na área da enfermagem.En este trabajo, se trata del conocimiento general y específico para la enfermería - enseñanza y práctica del arte de cuidar, con implicaciones para los aspectos importantes de la investigación de la realidad y la búsqueda de respuestas pertinentes a la construcción científica. Objetivo: Esclarecer las definiciones relacionadas al saber, al conocimiento en si y a la investigación de la enfermería. Metodología basada en el abordaje filosófico y discursivo en lo concerniente a las proposiciones y argumentos relacionados con los aspectos teóricos y prácticos que abarcan el saber, la conciencia (subjetividad y de la realidad (objeto estudiado, en el plano del pensamiento y conocimiento

  2. La educación psicomotriz en su contribución al desarrollo del lenguaje en niños que presentan necesidades específicas de apoyo educativo

    OpenAIRE

    Rodríguez, María Teresa; Gómez, Isabel María; Prieto Ayuso, Alejandro; Pedro, Gil Madrona

    2017-01-01

    La presente investigación pretende mostrar la influencia y contribución de la intervención psicomotriz en el desarrollo del lenguaje en aquellos niños con necesidades específicas de apoyo educativo . Se lleva a cabo un programa intervención psicomotriz basado en el movimiento y el juego motor, como complemento a la intervención en logopedia durante tres meses de duración con tres niños de entre 4 y 5 años que presentan determinadas dificultades en el desarrollo del lenguaje como p...

  3. Percepción del enfermero en procesos estrategicos de programas de protección específica y detección temprana en ips de bogota

    OpenAIRE

    Cruz Riveros, Jhonny Walyt; Gómez, Olga Janneth

    2012-01-01

    La investigación de "percepción del enfermero en procesos estratégicos de programas de protección específica y detección temprana", es un estudio descriptivo que muestra la percepción de profesionales de enfermería que se encuentran a cargo de estos programas en Bogotá, los procesos se describen desde los estándares del Sistema Único de Acreditación, reglamentado en el marco legal de las instituciones de salud en Colombia por el Decreto 1011 de 2006. Los estándares se aplicaron a una població...

  4. Situaciones didácticas en el contexto de ingeniería civil: caso infiltración de agua en un suelo específico

    OpenAIRE

    Hernández, Hipólito; Rodríguez, Ruth; de la Cruz, Adriana

    2010-01-01

    En la presente investigación se abordó el problema de infiltración de agua en un suelo específico, en consecuencia se exploró una situación didáctica, considerando la noción de predicción como práctica social en la modelación matemática de este fenómeno físico. Se parte de la epistemología inicial del binomio de Newton y la serie de Taylor, como marco de referencia para el estudio del diseño de la situación, donde la práctica de predicción es incorporada de forma intencional. A la vez se repo...

  5. Les Nouvelles Traversées Alpines : la “cité-Europe” à l’épreuve de l’acceptabilité alpine ? The New alpine crossings : The “city-Europe” faces up to the alpine acceptability

    Directory of Open Access Journals (Sweden)

    Kevin Sutton

    2012-12-01

    Full Text Available La pensée des traversées alpines est indissociable de celle des réseaux urbains alpins et, au-delà, européens. La nouvelle phase de percée des tunnels de base le réaffirme : les “Nouvelles Traversées Alpines” se retrouvent au coeur de l’enjeu de connexion des réseaux ferroviaires européens à grande vitesse. L’invention de la “cité-Europe” passe ainsi par la réinvention d’un pacte alpin autour du dessein de franchissement entre les villes de piedmonts et les communautés montagnardes traversées. Ces dernières ont, en effet, la capacité de bloquer un projet par leur refus. L’exemple du projet Lyon-Turin l’illustre, en contre-point de la réussite du tunnel de base du Lötschberg. La réussite suisse semble tenir à la capacité de conjuguer les inventions technique et sociale du tunnel, ne niant pas la dimension territoriale de cet objet réticulaire.It is impossible to think about the alpine crossings without thinking about the alpine and European urban nets. The construction of the basis tunnels recalls it: the “New Alpine Crossings” are the kernel of the connection issue between the European high-speed railways nets. The invention of a “city-Europe” needs a reinvented pact, between the cities of the plains and the alpine communities, based on the reaffirmation of a common crossing destiny. The alpine communities can thwart the project by refusing it, as the example of the Lyon-Turin project shows, in contrast to the successful Lötschberg basis tunnel. The Swiss success seems to come from the capacity to mix technical and social inventions, replacing the territorial dimension in the reticular fundament.

  6. Nouvelles techniques de mise en valeur des ressources d'hydrocarbures New Techniques for Valorising Hydrocarbon Resources

    Directory of Open Access Journals (Sweden)

    Boy De la Tour X.

    2006-11-01

    Full Text Available Après avoir montré l'importance des réserves de pétrole non conventionnel et l'enjeu que représente pour l'humanité la mise en exploitation de ces ressources, cette étude examine les axes actuels de recherches et l'état de la technologie pour chacune des sources de nouveau pétrole retenues : mers profondes, récupération assistée, huiles lourdes et sables asphaltiques, schistes bitumineux et conversion du charbon. Il en ressort que si les ressources de nouveau pétrole sont considérables, leur mise en valeur nécessitera des investissements très lourds, et le coût du pétrole ainsi produit restera élevé, comparé au coût actuel du pétrole conventionnel. Compte tenu des délais de mise en oeuvre, des problèmes technologiques restant à résoudre et de la nécessité de réaliser des pilotes semi-industriels très coûteux pour expérimenter les nouvelles techniques, il convient de consentir sans attendre un effort important de recherche technologique, impliquant un accroissement sensible des budgets de R&D, mais aussi des incitations financières appropriées. Cet effort de mise au point de technologies adaptées à ces sources d'hydrocarbures sera favorisé par les nouvelles conditions économiques créées par la rareté relative des réserves d'hydrocarbures classiques, à condition que les Etats, par leur politique, favorisent la production de ressources d'hydrocarbures à coût élevé. A l'heure actuelle, on peut évaluer la production de pétrole difficile à environ 100 Mt, l'essentiel étant réalisé dans le domaine des huiles lourdes et de la récupération assistée ; on estime que la production de nouveau pétrole pourrait représenter 200 à 350 Mt en 1990 et se situer entre 600 et 900 Mt en 2000, soit 5 à 8 % de la production de pétrole en 1990 et 15 à 20 % en 2000. Un tel objectif nécessiterait des investissements de l'ordre de 500 à 750 milliards de dollars 1980. After pointing out the importance of

  7. Propuesta y resultados de una evaluación condicional específica para el entrenamiento de judo: La batería blasco aplicada en judokas españoles.

    OpenAIRE

    Blasco Lafarga, Cristina

    2008-01-01

    RESUMEN La evaluación condicional es un elemento básico en el ámbito del Alto Rendimiento cuando se centra en valoraciones específicas y relevantes, de ejecución sencilla y lectura simple, con resultados aplicables al proceso de entrenamiento. De la misma forma, junto a un análisis numérico o cuantitativo, la evaluación condicional debe permitir una lectura cualitativa que explique las capacidades del deportista desde una perspectiva global e integradora. Con el objeto de ajustarnos a esta...

  8. Inexistência de diferenças de sexo no fator g (inteligência geral) e nas habilidades específicas em crianças de duas capitais brasileiras

    OpenAIRE

    Flores-Mendoza,Carmen E.; Mansur-Alves,Marcela; Lelé,Álvaro José; Bandeira,Denise Ruschel

    2007-01-01

    O presente trabalho pretendeu examinar diferenças relacionadas ao sexo no fator g (inteligência geral) e em habilidades específicas em crianças de duas cidades brasileiras: Belo Horizonte e Porto Alegre. No caso da amostra mineira (n=1,316), a idade compreendeu entre 5 e 11 anos de idade examinada através de uma bateria de testes a qual incluiu instrumentos de inteligência (Raven, Escala Verbal WISC III, R-2, DFH), de avaliação psicomotora (Bender) e de desempenho escolar (TDE). No caso da am...

  9. A new species of Dysmicoccus damaging lavender in French Provence (Hemiptera, Sternorrhyncha, Pseudococcidae).

    Science.gov (United States)

    Germain, J-F; Matile-Ferrero, D; Kaydan, M B; Malausa, T; Williams, D J

    2015-07-01

    Une nouvelle espèce de Dysmicoccus nuisible à la lavande en Provence (France) (Hemiptera, Sternorrhyncha, Pseudococcidae). Dysmicoccus lavandulae Germain, Matile-Ferrero & Williams n. sp. est décrite et illustrée. Ses séquences ADN sont présentées. L'espèce vit sur Lavandula x intermedia cultivée pour la production d'essence de lavande en Provence. La liste des espèces de pseudococcines vivant sur les lavandes spontanées en France est dressée. Le statut des 2 genres voisins Trionymus Berg et Dysmicoccus Ferris est discuté.

  10. Nouvelle manga, mon amour. Reflexiones sobre la narración gráfica de historias cotidianas

    Directory of Open Access Journals (Sweden)

    Olalla Hernández Ranz

    2010-03-01

    Full Text Available Desde sus primeras manifestaciones hace más de un siglo, el cómic se ha ido consolidando como un género popular sobretodo dirigido a un lector juvenil. Su evidente atractivo entre los lectores ha hecho que algunos padres, educadores y profesionales del ámbito de la promoción de la lectura se plantearan el por qué de dicha afición, llegando a conclusiones erróneas como la creencia de que se trata de una lectura menor, dirigida esencialmente a la pura distracción de quien los lee. El manga, en concreto, es el género dentro del cómic que más se consume en occidente. Se ha convertido en un fructífero producto de mercado que deriva en videojuegos, series de televisión, películas de cine… Su gran acogida entre el público infantil y juvenil preocupa a mediadores por la supuesta carga violenta y sexual y la baja calidad literaria de sus obras. El presente propuesta tratará de deshacer algunos tópicos en relación con la concepción errónea la historieta nipona, a partir del estudio de un corpus de obras creadas por autores japoneses y europeos que quieren aportar un cómic de calidad tanto en su forma como en el contenido, abriendo así las puertas a nuevas investigaciones de gran interés. La Novelle manga es un nuevo género dentro del cómic nipón que aúna las estrategias comunicativas más destacables de las novelas gráficas japonesas, el valor estético del cómic francés y la sencillez y el tono de las películas de cine francés dentro de la Nouvelle Vague para crear un cómic que narra historias cotidianas de gran valor literario y estético, muy recomendable para lectores juveniles y adultos.

  11. IFP Energies nouvelles - 2013 Activity Report. 2013 financial report. Innovating for energy

    International Nuclear Information System (INIS)

    2014-01-01

    IFP Energies nouvelles (IFPEN) is a public research and training player. It has an international scope, covering the fields of energy, transport and the environment. From research to industry, technological innovation is central to all its activities. As part of the public-interest mission with which it has been tasked by the public authorities, IFPEN focuses on: - providing solutions to take up the challenges facing society in terms of energy and the climate, promoting the emergence of a sustainable energy mix; - creating wealth and jobs by supporting French and European economic activity, and the competitiveness of related industrial sectors. IFPEN has proven expertise across the entire value chain, from fundamental research to industrial research and innovation. It is funded both by a state budget and by resources provided by French and foreign international partners. The aim of IFPEN's R and D programs is to overcome existing scientific and technological barriers in order to develop innovations that can be used by industry. Through its research and resulting innovations, IFPEN fosters the economic development of fields related to the energy, transport and eco-industry sectors. In so doing, it also contributes to creating wealth and jobs. IFPEN's innovations are developed industrially through close partnerships with industrial players and IFP Group subsidiaries. In both emerging and mature markets, IFPEN creates companies or acquires stakeholdings in companies of significant potential, either directly or via capital funds. In addition, IFPEN supports the development of SMEs and SMIs as part of collaboration agreements, contributing its technical and legal expertise. Representing over 50 professions, from geological engineers to power-train engineers, IFPEN's employees form a unique body of globally recognized scientific specialists and an unparalleled network of expertise. In order to carry out their research work at the cutting edge of innovation, they have

  12. Trabajo en equipo en el clima organizacional de las empresas, en al área específica del talento humano

    Directory of Open Access Journals (Sweden)

    González Peláez, Dora Inés

    2015-01-01

    Full Text Available Históricamente el trabajo en equipo ha constituido una necesidad del hombre para el logro de sus metas, tanto a nivel personal como laboral. Su efectividad depende en gran medida de las relaciones interpersonales, de apoyo y colaboración que se desarrollan entre los miembros del equipo de trabajo. El presente artículo identifica y describe las causas y consecuencias que tiene éste en el clima organizacional de las empresas, específicamente en las áreas de Talento Humano. Entre los motivos más relevantes se evidencian el liderazgo, la comunicación y la cultura; aspectos que se traducen en relaciones armoniosas, compromiso y productividad; el otro aspecto que queda claro en la investigación, es el papel preponderante de las áreas y/o departamentos de gestión humana en las organizaciones y la preparación que requieren los profesionales de dichas áreas para asumir el nuevo rol de ser socio estratégico del negocio y gestor del cambio organizacional.

  13. Intervención didáctica para la enseñanza de la farmacología en las clases de inglés con fines específicos

    Directory of Open Access Journals (Sweden)

    Vladimir Molina Raad

    2015-12-01

    Full Text Available Se realizó un estudio cualitativo de intervención, con el objetivo de determinar el vocabulario relacionado con la farmacología, necesario para desarrollar las clases de inglés médico en la carrera de Medicina de la Universidad de Ciencias Médicas de Las Tunas. El grupo de estudio estuvo constituido por los estudiantes y profesores del 5to año de la carrera de Medicina del curso 2011-2012. Las variables fueron la preparación del colectivo de profesores, las afecciones clínicas incluidas en el programa, los grupos farmacológicos implicados y el nombre en inglés de medicamentos específicos. La información se obtuvo de los libros de textos y los trabajos independientes realizados por los estudiantes. Se constató que la preparación profesional de los docentes en el área de la farmacología depende de la disponibilidad de diccionarios actualizados y de los conocimientos que estos han ido adquiriendo de forma empírica. Se observó una tendencia en los estudiantes a relacionar nombres de medicamentos, cuyas pronunciaciones se desconocen, lo cual entorpece la adquisición correcta del contenido lingüístico en inglés. Se evidenció que cuando se trabajan los grupos farmacológicos con un limitado número de medicamentos específicos y reconocidos, se logra un mejor desempeño lingüístico en los estudiantes.

  14. Elaboration de nouvelles approches micromecaniques pour l'optimisation des performances mecaniques des materiaux heterogenes

    Science.gov (United States)

    Aboutajeddine, Ahmed

    Les modeles micromecaniques de transition d'echelles qui permettent de determiner les proprietes effectives des materiaux heterogenes a partir de la microstructure sont consideres dans ce travail. L'objectif est la prise en compte de la presence d'une interphase entre la matrice et le renforcement dans les modeles micromecaniques classiques, de meme que la reconsideration des approximations de base de ces modeles, afin de traiter les materiaux multiphasiques. Un nouveau modele micromecanique est alors propose pour tenir compte de la presence d'une interphase elastique mince lors de la determination des proprietes effectives. Ce modele a ete construit grace a l'apport de l'equation integrale, des operateurs interfaciaux de Hill et de la methode de Mori-Tanaka. Les expressions obtenues pour les modules globaux et les champs dans l'enrobage sont de nature analytique. L'approximation de base de ce modele est amelioree par la suite dans un nouveau modele qui s'interesse aux inclusions enrobees avec un enrobage mince ou epais. La resolution utilisee s'appuie sur une double homogeneisation realisee au niveau de l'inclusion enrobee et du materiau. Cette nouvelle demarche, permettra d'apprehender completement les implications des approximations de la modelisation. Les resultats obtenus sont exploites par la suite dans la solution de l'assemblage de Hashin. Ainsi, plusieurs modeles micromecaniques classiques d'origines differentes se voient unifier et rattacher, dans ce travail, a la representation geometrique de Hashin. En plus de pouvoir apprecier completement la pertinence de l'approximation de chaque modele dans cette vision unique, l'extension correcte de ces modeles aux materiaux multiphasiques est rendue possible. Plusieurs modeles analytiques et explicites sont alors proposee suivant des solutions de differents ordres de l'assemblage de Hashin. L'un des modeles explicite apparait comme une correction directe du modele de Mori-Tanaka, dans les cas ou celui ci echoue a

  15. Migração específica de antioxidante de embalagens plásticas para alimentos Specific migration of antioxidant from plastic packages for food

    Directory of Open Access Journals (Sweden)

    Leda Coltro

    2011-01-01

    Full Text Available O uso de aditivos em materiais plásticos é essencial para o processamento e desempenho dos plásticos, uma vez que os aditivos conferem características desejadas aos polímeros. No entanto, há restrições determinadas pela Agência Nacional de Vigilância Sanitária (ANVISA para as embalagens plásticas de alimentos, as quais devem ser avaliadas por meio de ensaios físicos, realizados por laboratório acreditado, para verificar se os requisitos estabelecidos pela ANVISA são atendidos. Sendo assim, o objetivo desse trabalho foi desenvolver metodologia que permita a avaliação da migração de 3-(3,5-di-terc-butil-4-hidroxifenil propionato de n-octadecila, antioxidante de nome comercial Irganox 1076, CAS 2082-79-3, presente em embalagens plásticas para contato com alimentos, empregando cromatografia líquida de alta eficiência. Esse estudo também teve como finalidade comprovar se o conteúdo de Irganox 1076 de amostras comerciais de filmes plásticos atende ao requisito de limite de migração específica estabelecido pela ANVISA para este aditivo. Os resultados obtidos indicam que a metodologia utilizada para os simulantes aquoso, ácido e gorduroso é satisfatória e adequada para a análise da migração específica do Irganox 1076, uma vez que todos os parâmetros necessários para a validação do método foram atingidos. As amostras de filme de PEBD e de EVA analisadas atendem ao limite de migração específica do Irganox 1076 para todos os simulantes avaliados.The use of additives in plastics is essential for the processing and performance of plastic products since the additives enhance the desired characteristics of the polymers. Nevertheless, there are restrictions established by the Brazilian Agency of Sanitary Surveillance (ANVISA for plastic packages intended to be in contact with foodstuffs which must be submitted to analyses at a proper laboratory in order to check the compliance with the requirements established

  16. Características clínicas y tratamiento de la ansiedad académica y ante los exámenes como fobia específica de tipo situacional

    OpenAIRE

    Mondéjar García, Ángel

    2010-01-01

    L'ansietat acadèmica i davant els exàmens com a fòbia específica de tipus situacional és un trastorn infantil i juvenil d'efectes pertorbadors i negatius que repercuteixen sobre la salut mental i emocional, el rendiment acadèmic i la integració social de l'estudiant que la pateix. En aquest treball s'especifiquen les seves característiques clíniques. Així mateix, s'inclou un cas clínic d'un adolescent de 14 anys que patia d'aquest trastorn fòbic escolar, acompanyat de baixa autoestima persona...

  17. El concepto de tecnología escolar: una construcción de conocimiento profesional específico del profesorado de tecnología e informática

    Directory of Open Access Journals (Sweden)

    Jorge Mario Ortega Iglesias

    2017-01-01

    colectiva de creación y transformación del entorno, y un dispositivo de participación colectiva que afronta el hacer y saber hacer tecnológico en lo cotidiano. Esta comprensión del concepto de tecnología es la síntesis del sistema de ideas que integra el conocimiento específico del profesor, cuya integración obedece en principio al aula de clases como unidad representativa de significado, las fuentes de saber que nutren el conocimiento del profesor y sus respectivos estatutos epistemológicos, así como a un fenómeno discursivo de producción escolar de sentido.

  18. La competencia comunicativa en el proceso de enseñanza aprendizaje del inglés con fines específicos en la carrera de estomatología

    OpenAIRE

    Acosta Ortega, Luisa Francisca

    2012-01-01

    El proceso de formación de los profesionales de la salud se sustenta en un modelo pedagógico para la formación de un profesional de amplio perfil. Un papel importante en este sentido corresponde al dominio del Idioma inglés que permita la actualización científico-técnica y el desempeño profesional en cualquier lugar del mundo. En la práctica actual se perciben insuficiencias en la formación de la competencia comunicativa en el Inglés con Fines Específicos en la carrera de Estomatología, para ...

  19. Nouvelles formes de gouvernance dans le domaine de l’eau. Apports et limites de la coopération décentralisée dans les pays en développement

    Directory of Open Access Journals (Sweden)

    Raoudha Makkaoui

    2010-09-01

    Full Text Available La problématique de cet article porte sur le rôle de la coopération décentralisée dans le domaine de l’eau, dans la mesure où celle-ci semble pouvoir apporter des réponses concrètes au problème de l’accès universel à l’eau et constituer une nouvelle option pour la communauté internationale. Dans une première partie, on présentera les problèmes rencontrés par les différents modes de gestion de l’eau dans les pays en développement et la façon dont ils ont successivement tenté de satisfaire à certains objectifs bien précis (accès universel à l’eau, réduction des coûts, prise en compte des besoins prioritaires. Dans une deuxième partie, sur la base d’une initiative de coopération décentralisée entre le Conseil régional de Seine-Saint-Denis et la ville marocaine de Figuig, on s’interrogera sur les apports et limites de cette nouvelle forme de partenariat participatif afin d’en évaluer la pérennité ainsi que la « soutenabilité sociale », montrant, de ce fait, sa proximité avec l’économie solidaire.Our paper builds on this issue of decentralized cooperation in the field of water management. Cooperation between decentralized entities in order to ensure the access to safe drinking water for all now constitutes in many places a preferred water governance option. Therefore, in the first part, we will provide an overview of the current difficulties encountered by the various forms of water management in developing countries, showing the solutions that they successively brought to specific issues (access for all, cost reduction, priority needs. In the second part, we will address the particular case of decentralized cooperation between the General Council of Seine-Saint-Denis in the suburbs of Paris, France, in partnership with the city of Figuig in Morocco. We review the insights and limits of such processes that refer to the people’s capabilities, at both individual and collective levels, in

  20. Disruption of ecosystem processes in western North America by invasive species

    Directory of Open Access Journals (Sweden)

    Jeffrey S. Dukes

    2004-09-01

    Full Text Available Many ecosystems of western North America have been dramatically changed by non-native species. Here, we review ecological impacts of 56 plant, animal, fungus, and protist species that were brought to this region by humans. We discuss characteristics of invasive species that can lead to major ecosystem impacts, and explore how invasive species alter many different attributes of ecosystems. Specifically, we include examples of invasive species that affect geomorphology, fire regimes, hydrology, microclimate, atmospheric composition, nutrient cycling, and productivity. Finally, we review the direct consequences of biological invasions for some native species. We summarize examples from this paper in Appendix 1. Our examples illustrate how, as invasive species have become dominant across large areas of western North America's grassland, shrubland, dune, riparian, and estuarine ecosystems, the properties and functioning of these systems have changed. To date, some systems in this region, such as its forests, remain relatively unaffected by invasive species. However, recent attacks of forest pathogens highlight the potential vulnerability of these ecosystemsMuchos ecosistemas de Norteamérica occidental han cambiado dramáticamente a causa del efecto producido por especies no autóctonas. Aquí se muestra una revisión del impacto ecológico producido por 56 especies diferentes de plantas, animales y hongos, y especies de protistas que fueron traídos a esta región por humanos. Discutimos las características de las especies invasoras que pueden producir un gran impacto en el ecosistema, y exploramos cómo las especies invasoras pueden alterar de forma muy diferente los atributos de un ecosistema. Específicamente, incluimos ejemplos de especies invasoras que afectan a la geomorfología, a los regímenes del fuego, a la hidrología, al microclima, a la composición atmosférica, al ciclo de nutrientes, y a la productividad. Finalmente, revisamos las

  1. Secuencia reguladora de la expresión específica en antera de un gen y su empleo en la producción de plantas androestériles y semillas híbridas

    OpenAIRE

    Gómez Jiménez, María Dolores; Cañas Clemente, Luis Antonio; Madueño Albi, Francisco; Beltrán Porter, José Pío

    2000-01-01

    Agricultura. La presente invención se relaciona con la obtención de secuencias de ADN reguladoras (promotores) y, usando dichas secuencias, la construcción de nuevos genes quiméricos capaces de expresarse de forma específica en las anteras de plantas transgénicas. La invención también se refiere a la obtención de plantas androestériles y semillas híbridas.

  2. Teoría de situación específica de autotrascendencia en dependientes del alcohol en proceso de recuperación

    Directory of Open Access Journals (Sweden)

    Linda Azucena Rodríguez-Puente

    2016-01-01

    Full Text Available La creación de modelos y teorías de enfermería, enfocadas en fenómenos específicos, contribuye a la práctica y el desarrollo de la dis-ciplina de enfermería.Objetivo:presentar una derivación teórica y proponer un modelo sobre la teoría de autotrascendencia en personasdependientes del alcohol en proceso de recuperación.Materiales y métodos:se realizó una derivación teórica mediante la metodologíapropuesta por Walker y Avant.Resultados:adaptación del Modelo de Autotrascendencia en personas dependientes del alcohol en proce-so de recuperación en Alcohólicos Anónimos.Conclusiones:el modelo puede ser útil para explicar cómo las personas dependientes delalcohol, que se encuentran en tratamiento, logran el bienestar y cuáles son los factores que influyen durante el proceso.

  3. Contribuciones del factor general y de los factores específicos en la relación entre inteligencia y rendimiento escolar Contributions of the general and the specific factors for the intelligence and school achievement relationship

    Directory of Open Access Journals (Sweden)

    Leandro S. Almeida

    2009-11-01

    Full Text Available

    En este artículo se pretende analizar en qué medida, factores más específicos de la cognición, asociados a contenido verbal, numérico o figurativo, complementan un factor más general de raciocinio en la predicción del rendimiento escolar de los alumnos, al inicio y final de la adolescencia. A una muestra de estudiantes portugueses (n=4.899 entre el 5º y el 12º año de escolaridad, se le aplicó una Batería de Pruebas de Raciocinio en sus tres versiones. El rendimiento escolar de los alumnos se estimó en base a sus clasificaciones en Lengua Portuguesa y Matemáticas. El modelo de ecuaciones estructurales mostró un mayor impacto del factor general (inteligencia fluida-inductiva asociado a todas las pruebas de la BPR en la predicción del rendimiento escolar, observándose que esa significación disminuía progresivamente a lo largo de la escolaridad. Por otro lado, elementos específicos de cada prueba entraron en un segundo modelo, especialmente, en el grupo de los alumnos más jóvenes (5º y 6º año. Entre el 7º y el 9º año las contribuciones específicas de las pruebas se refieren, sobre todo, a la prueba de raciocinio verbal (la prueba de raciocinio numérico aparece también en el 9º año. Así, aún reconociendo la relevancia del factor g en la explicación del rendimiento académico, componentes cognitivos específicos pueden también contribuir para asociar inteligencia y realización académica.

    Palabras clave: Inteligencia, factor g, factores específicos, Gf-Gc, rendimiento académico.

    This paper aims to analyse the extent to which factors more specific cognition, content associated with verbal, numerical or figurative, complement a reasoning general factor in predicting students´ academic achievement at the beginning and the end of adolescence. Taking a Portuguese students sample (n=4,899 from 5th to 12th grades, the reasoning tests battery (BPR – Bateria de Provas de Raciocínio was administrated

  4. Comparison of parasitic helminth infection between the different age ...

    African Journals Online (AJOL)

    AJL

    tropical catfish species for aquaculture in West Africa. (Clay ... infection of fish species from the same reservoir. Similar .... emphasis on its role as a predator of cichlids. ... tentative de selection et d' adaptation de quelques especes a l'etang.

  5. Aspectos psicológicos específicos del cáncer en las mujeres

    Directory of Open Access Journals (Sweden)

    Die Trill, María

    2015-06-01

    Full Text Available The differences in the psychosocial aspects of different types of cancer in men and women are mainly based on gender variables. However, the specific way in which gender influences adaptation to cancer is not completely defined and it has also been very poorly studied. Gender differences are not only evident in the physical impact of cancer, but also in quality of life, in the psychosocial differences, in the confronting styles and in the adaptation of the patient’s partners to the process of the disease. It is necessary to identify women’s specific psychosocial needs in more detail in order to be able to develop specific programs which keep in mind the gender differences in the way oncologic disease is confronted, as well as in the process of making clinical decisions and in the variables required to optimise their quality of life.Las diferencias en los aspectos psicosociales de diferentes tipos de cáncer en hombres y mujeres están basadas fundamentalmente en variables de género. Sin embargo, la forma concreta en la que influye el género en la adaptación al cáncer no está del todo definida, y desde luego, muy poco estudiada. Las diferencias de género no solo son evidentes en el impacto físico del cáncer sino también en la calidad de vida, en las diferencias psicosociales, en los estilos de afrontamiento y en la adaptación de las parejas de los pacientes al proceso de enfermedad. Es necesario identificar con más detalle las necesidades psicosociales específicas de la mujer con el fin de poder desarrollar programas concretos que tengan en cuenta las diferencias de género en el afrontamiento de la enfermedad oncológica, en el proceso de toma de decisiones médicas, y en las variables necesarias para la optimización de su calidad de vida.

  6. Detección de Anticuerpos IgG Específicos para Sarampión mediante la Técnica de Inmunofluorescencia Indirecta

    Directory of Open Access Journals (Sweden)

    Mónica Nieto Z

    2000-01-01

    Full Text Available La técnica de ínmunofluorescencia indirecta para detectar anticuerpos IgG específicos a sarampión (IFI-IgG fue evaluada con la prueba de neutralización por reducción de placas (PRN con 128 muestras de suero de personas con edades entre 0 y 15 años, 64 con antecedente de vacunación y 64 sin éste antecedente. El IFI-IgG alcanzó una sensibilidad de 80,4% y una especificidad de 100,0%, mostrando ser una prueba sencilla, reproducible, y tener correlación con PRN, aunque menos sensible que ésta última, especialmente cuando la PRN estimó títulos bajos de anticuerpos. Se concluye que la técnica IFI-IgG puede ser usada como método de rutina para la confirmación de sarampión en muestras de fase aguda y convalesciente de la enfermedad (sueros pareados, así como para estudios de prevalencia de anticuerpos en la comunidad, aunque no reemplazaría a la PRN.

  7. Ressonância magnética do fígado com contraste hepato-específico: experiência clínica inicial no Brasil

    Directory of Open Access Journals (Sweden)

    Leonardo Kayat Bittencourt

    2013-06-01

    Full Text Available Os autores relatam a experiência clínica inicial em um serviço privado no Brasil do uso do ácido gadoxético como meio de contraste hepato-específico em exames de ressonância magnética (RM. Esta substância, recentemente liberada para uso comercial no país, pode ser especificamente captada pelos hepatócitos, atingindo um pico de concentração em cerca de 10-20 minutos após a administração endovenosa. Dentre as principais indicações para seu uso em exames de RM, figuram: diagnóstico de carcinoma hepatocelular, detecção e planejamento terapêutico de metástases hepáticas, e a diferenciação entre hiperplasia nodular focal e adenoma hepatocelular.

  8. Contracción, hinchamiento y peso específico aparente de madera de eucalipto colorado (Eucalyptus tereticornis Smith

    Directory of Open Access Journals (Sweden)

    Andrea Cardoso

    2013-12-01

    Full Text Available Con el objetivo de contribuir al conocimiento del comportamiento de la madera de Eucalyptus tereticornis en Uruguay, se estudió la contracción y el hinchamiento lineal y volumétrico para diferentes condiciones de humedad relativa, a una temperatura de 25 ºC. Se construyó una isoterma parcial dándole importancia a las condiciones de humedad de equilibrio en las que es posible encontrar productos realizados con esta madera en Uruguay, por ejemplo, pisos interiores o exteriores. De cinco árboles de una cortina de 50 años ubicada en el departamento de Durazno se seleccionaron discos a dos alturas. A partir de estas se prepararon probetas para las determinaciones de contracción e hinchamiento. Se encontró que el peso específico aparente básico fue de 0,630, al 12% de contenido de humedad fue de 0,859 y al 15 % de 0,872. La contracción radial, tangencial y volumétrica fue de 7,04%, 14,70% y 20,64%, respectivamente, y el hinchamiento radial fue de 7,61%, el tangencial de 17,61% y 26,62% el volumétrico. Sobre la isoterma se observó una diferencia esperable entre la curva de sorción y la de desorción en el rango de humedad relativa estudiado de 53% a 84%.

  9. Conséquences industrielles et écologiques de l'introduction de nouvelles espèces dans les hydrosystèmes continentaux : la moule zébrée et autres espèces invasives

    Directory of Open Access Journals (Sweden)

    KHALANSKI M.

    1997-01-01

    Full Text Available Les eaux de surface sont prélevées pour divers usages industriels, parmi lesquels la production d'énergie électrique représente une large part. Dans les circuits d'eau brute se fixent de nombreuses espèces d'organismes aquatiques, qui perturbent le fonctionnement des installations et sont susceptibles d'entraîner l'indisponibilité de certaines d'entre elles. Dans certains cas, l'irruption de nouvelles espèces pose un problème grave à l'industrie. L'introduction de deux espèces de moules zébrées (genre Dreissena dans les Grands Lacs américains, puis leur extension progressive vers le sud des États-Unis au cours des dernières années, se chiffre par un dommage pour l'industrie estimé à cinq milliards de dollars par an en 2000. L'impact écologique de la moule zébrée en Amérique du Nord a fait l'objet de nombreux travaux ; dans la phase d'extension rapide de l'espèce, il semble significatif. En Europe, la moule zébrée constitue aussi une menace pour les circuits industriels ; c'est pourquoi cette espèce a fait l'objet de nombreuses études, notamment en France sur la Seine, le Rhône et la Moselle. Deux nouvelles espèces invasives sont récemment apparues dans les cours d'eau européens : il s'agit du clam asiatique Corbicula fluminea et d'un amphipode : Corophium curvispinum. Elles s'ajoutent à la liste faunistique des organismes observés dans les circuits de centrales thermiques installées sur les cours d'eau français : spongiaires, hydraires, bryozoaires, mollusques. Pour assurer la disponibilité des circuits, il faut pouvoir contrôler le développement de ces espèces ; ce qui implique une connaissance approfondie de leur biologie et de leur écologie. Les méthodes de lutte actuellement mises en oeuvre au plan industriel, ou qui sont à l'étude, sont brièvement passées en revue.

  10. Una nueva especie de Spheniscidae del Mioceno Tardío de la Formación Pisco, Perú

    Directory of Open Access Journals (Sweden)

    2003-01-01

    Full Text Available Nous décrivons des éléments crâniens attribués à une nouvelle espèce du genre Spheniscus, provenant du Miocène supérieur de la Formation Pisco, sur la côte centre-sud du Pérou. Cette nouvelle espèce se caractérise par la présence d'un rostrum proportionnellement plus grand que celui observé chez les autres espèces du genre. Finalement, l’on discute brièvement sur la valeur adaptative des caractères observés. Se describen elementos craneales atribuibles a una nueva especie del género Spheniscus, procedentes del Mioceno tardío de la Formación Pisco, en la costa centro-sur del Perú. Esta nueva especie se caracteriza por tener un rostrum, en relación con el cráneo, proporcionalmente mayor que el observado en las demás especies del género. Finalmente, se discute brevemente sobre el valor adaptativo de los caracteres observados. A new species of genus Spheniscus is described based on cranial elements from Late Miocene of Pisco Formation on the central-southern coast of Peru. The skull to rostrum proportion of this new species is bigger than any other species of the genus. Finally, the adaptative value of the observed characteristics is briefly discussed.

  11. Astrocaryum (palmae in Amazonia a preliminary treatment

    Directory of Open Access Journals (Sweden)

    1992-01-01

    Full Text Available ASTROCARYUM (PALMAE EN AMAZONIE. TRAITEMENT PRÉLIMINAIRE. Le genre Astrocaryum est composé de 24 espèces amazoniennes: cinq appartiennent au sous-genre Pleiogynanthus et 19 au sous-genre Monogynanthus (3 à la section Munbaca et 16 à la section Ayri. Une clé d’identification est proposée, ainsi que la description de chaque espèce, complétée par de nouvelles observations et suivie de notes sur la distribution géographique, l’écologie et les utilisations. Six espeses nouvelles sont décrites. ASTROCARYUM (PALMAE EN LA AMAZONIA. TRATAMIENTO PRELIMINAR. Astrocaryum consta de 24 especies amazónicas, 5 de las cuales pertenecen al subgénero Pleiogynanthus y 19 al subgénero Monogynanthus (3 a la sección Munbaca, 16 a la sección Ayri. Se presenta una clave para diferenciar las especies, y para cada una, su descripción con nuevos datos, así como notas sobre la distribución geográfica, la ecología y los usos. Se describen seis especies nuevas. In the Amazon, Astrocaryum includes 24 species of which five belong to the subgenus Pleiogynanthus and 19 to the subgenus Monogynanthus - three in the section Munbaca and 16 in the section Ayri. A key to these 24 species is presented followed by description based on new data, and notes on their distribution, ecology and uses. Six new species are described.

  12. Nouvelles données sur le genre Bragasellus (Crustacea: Isopoda: Asellidae)

    NARCIS (Netherlands)

    Afonso, Odette; Henry, Jean-Paul; Magniez, Guy

    1996-01-01

    From now on, the genus Bragasellus Henry & Magniez, 1968 includes 2 oculated and 17 stygobiotic species. As a natural and monophyletic taxonomic unit, we consider it a good genus. Its original area corresponds to the north-west quarter of the Iberian Peninsula. Secondarily, this area has extended

  13. Determinaciones termogravimétricas y de calor específico de un concentrado comercial de ulexita, entre temperatura ambiente y 1.000 ºC

    Directory of Open Access Journals (Sweden)

    Flores, H. R.

    2006-12-01

    Full Text Available The important amount of hydration water in the ulexite (NaCaB5O9.8H2O, allows using calcination methods to increase its B2O3 content. This paper analyses the thermal decomposition reaction of a preconcentrated ulexite through weight loss measurements, which occur during the heating of samples until 1000 ºC. Determinations of heat content at each temperature were made using an isoperibol calorimeter. The mean specific heat was calculated from these values, and its dependence on temperature was determined. The maximum weight loss was about 32.5 % and the specific heat obtained was 1,13 kJ/kgºC for solid samples and 1,38 kJ/kgºC for fluid samples.The results are useful for the design of the industrial process, in order to determine the thermal requirements for heating calcined ulexite, and to obtain smelted ulexite.

    El elevado contenido de agua de hidratación de la ulexita (NaCaB5O9.8H2O permite utilizar la calcinación como método de concentración. En este trabajo se analiza la reacción de descomposición térmica de un preconcentrado de ulexita a través de determinaciones de la pérdida de peso ocurrida durante el calentamiento de la muestra hasta 1000 ºC. Por otra parte, se ha determinado el valor del calor sensible a cada temperatura ensayada mediante un calorímetro tipo isoperibol y se ha calculado el calor específico medio de la muestra calcinada, así como su variación con la temperatura. Se obtuvieron pérdidas de peso de 32,5 % y valores del calor específico de 1,13 kJ/kgºC para muestras sólidas y 1,38 kJ/kgºC para las fluidas. Los resultados son de utilidad para el diseño del proceso industrial, para la determinación del requerimiento térmico para el calentamiento de ulexita calcinada y para la obtención de una frita.

  14. La regulación específica de las asociaciones de consumidores de ámbito autonómico: situación y reformas necesarias

    Directory of Open Access Journals (Sweden)

    Jose-Gabriel Ruiz Gonzalez

    2014-03-01

    Full Text Available Dentro del marco fijado por la Ley Orgánica 1/2002, reguladora del derecho de asociación, tanto el Estado como las Comunidades Autónomas pueden normar por ley ordinaria dentro de sus respectivas competencias el régimen jurídico de las asociaciones de consumidores. Así ha hecho el Estado con la Ley 44/2006, de Mejora de la Protección de los Consumidores y Usuarios, que estableció el régimen jurídico básico de aplicación a todas las asociaciones de consumidores. También todas las Comunidades Autónomas, ejerciendo sus competencias, han dictado leyes estableciendo la regulación específica de las asociaciones de consumidores de ámbito autonómico. El objeto de este trabajo es analizar la regulación específica que han establecido las distintas Comunidades Autónomas respecto de las asociaciones de consumidores de ámbito autonómico, estudiar su adecuación a la legislación básica del Estado y plantear las reformas legislativas a acometer para que estas organizaciones puedan cumplir con su finalidad constitucional. Within the organic framework of the Organic Law 1/2002, which regulates the right of association, both the State and the self-governing communities may rule by means of statutory law and within their competences, their legal system. An example of this is the Improvement of Consumer and User Protection Act (44/2006, which established a basic legal basis applicable to all consumers’ associations, according to the powers vested the Spanish Constitution. Also the self-governing communities, in exercise of his competences for the protection of the consumer, have dictated laws that regulate the specific system of these associations when they have an area of regional action. The main aim of the present paper is to study this specific system established by the self-governing communities, his adequacy to the basic legislation of the State and determinate the legal reforms to realize in order that they could expire with his

  15. Revisión de la utilización en el área de observación de urgencias: validez y fiabilidad de una adaptación específica del protocolo AEP.

    OpenAIRE

    Ferrer Tarrés, Joan Maria

    2003-01-01

    Fundamento: Los servicios de urgencia constituyen una de las principales puertas de acceso al sistema sanitario. La preocupación por el aumento de la demanda urgente y por su uso indiscriminado, estimula la necesidad de revisar la utilización y organizar áreas alternativas a la hospitalización convencional.Objetivo: Evaluar la aplicabilidad específica de los procedimientos de revisión de la utilización en la atención de las urgencias. Diseñar un protocolo AEP adaptado a las áreas de observaci...

  16. Evolução do processo terapêutico fonoaudiológico no Distúrbio Específico de Linguagem (DEL: relato de caso

    Directory of Open Access Journals (Sweden)

    Ana Paola Nicolielo

    2014-10-01

    Full Text Available O objetivo deste estudo foi descrever a evolução clínica de uma criança do gênero feminino, nove anos de idade, com diagnóstico de Distúrbio Específico da Linguagem atendida na Clínica de Linguagem Infantil da FOB-USP. Realizou-se acompanhamento longitudinal, por meio de análise de prontuário e filmagens. A intervenção fonoaudiológica iniciou quando a criança apresentava cinco anos com queixa de alterações fonológicas e prejuízos na inteligibilidade de fala. Constatou-se processos fonológicos não mais esperados para a idade, alterações semântico-lexicais, sintáticas, pragmáticas, e em processos perceptivos auditivos, estando a linguagem receptiva preservada. A intervenção teve como principal objetivo a organização dos subsistemas linguísticos principalmente da habilidade de processamento de informações. Após um ano, houve evolução dos aspectos trabalhados, exceto do aspecto fonológico, que teve evolução menos significante. Atividades direcionadas a linguagem escrita foram inseridas quando a criança iniciou o ensino fundamental. Após 42 meses de intervenção, houve evolução do aspecto fonológico. Entretanto, esta evolução ainda não é observada na fala espontânea. As alterações neste aspecto exercem grande influência no desempenho da linguagem escrita. A habilidade de consciência fonológica está adequada, entretanto, há dificuldade na conversão fonema/grafema, resultando em desempenho aquém do esperado na linguagem escrita. Ainda, há comprometimento no processamento da informação linguística, além de persistência nas alterações, que acarretam defasagens no processo de alfabetização. Acreditamos que para conduzir o processo terapêutico é necessário compreender a natureza das dificuldades linguísticas, desenvolvendo estratégias específicas voltadas principalmente ao processamento da informação linguística e a aprendizagem, proporcionando habilidades e capacitando o indiv

  17. A Comparative Study of the Adoption of Three Types of Agricultural ...

    African Journals Online (AJOL)

    Celle-ci portait sur le taux d'adoption de nouvelles variétés du maïs et du manioc, l'adoption de nouvelles cultures dont le niébé et le soja, et enfin l'adoption des cultures en couloirs qui est une nouvelle technologie de gestion des champs. On est parti de l'idée que les trois types d'innovation technologique possèdent ...

  18. Grants and awards: Gender equality and scaling digital innovation ...

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

    ... gender equality is central to global development policy and practice. ... the provision of employment, and leadership development pathways. ... Perspectives asiatiques : Une nouvelle croissance reposant sur une nouvelle productivité.

  19. Método para determinação de volume específico como padrão de qualidade do polvilho azedo e sucedâneos

    Directory of Open Access Journals (Sweden)

    Vitor Hugo dos Santos BRITO

    2015-03-01

    Full Text Available Objetivou-se estabelecer um método para a determinação da expansão como critério de qualidade do polvilho azedo e sucedâneos. Três tipos de amidos de mandioca foram avaliados: Polvilho Azedo (padrão, Expandex® e Amido Nativo. As amostras foram condicionadas diretamente em moldes de silicone e metal revestido com politetrafluoretileno e forneadas sob condições controladas de temperatura 200 ºC ou 250 °C e tempo 20 ou 25 minutos. O método proposto foi avaliado pela repetitividade do volume específico (relação volume:massa e os resultados foram comparados com os obtidos por método tradicional com manuseio dos ingredientes com água fervente e moldeamento manual em bolas, posteriormente forneadas em assadeira de alumínio untada, assadas nas mesmas condições. A seleção do melhor método levou em conta os maiores valores para volume específico (cm3 g–1 e menores variações entre as repetições. Para a fôrma de silicone, os melhores resultados foram obtidos nas condições de 200 °C e 25 min (8,89 cm3 g–1 com 1,46% de variabilidade, que proporcionou massas suficientemente resistentes ao manuseio para permitir as medidas. Para moldes de politetrafluoroetileno as melhores condições foram temperatura de 200 °C durante o tempo de 20 minutos (8,16 cm3 g–1 com 7,59% de variabilidade. A amostra de Expandex® apresentou a mesma resposta que o polvilho azedo às variáveis de temperatura de forno e tempo de assamento, porém com valores maiores. A presença residual de grânulos intactos mostrou que a gelatinização do amido não foi completa nas condições de forneamento. O método proposto apresentou facilidade na manipulação e o tempo necessário foi apenas aquele necessário para a elaboração da pasta com água e o forneamento.

  20. Respuesta IgE específica anti-Blomia tropicalis en niños asmáticos residentes en Santa Marta, una ciudad del Caribe colombiano

    Directory of Open Access Journals (Sweden)

    Dary Luz Mendoza Meza

    2013-10-01

    Full Text Available ResumenBlomia tropicalis es un ácaro intradomiciliario predominante en Colombia. Sin embargo, existe poca información disponible sobre la sensibilización a este y otros ácaros intradomiciliarios en pacientes asmáticos de Santa Marta. El propósito de este estudio fue establecer la respuesta IgE específica contra el ácaro B. tropicalis en pacientes pediátricos asmáticos de Santa Marta. La respuesta IgE específica se determinó por ELISA indirecto en 77 niños con diagnóstico de asma bronquial alérgica. Las fracciones alergénicas mayoritarias de B. tropicalis se identificaron por Western Blotting usando un extracto de proteínas de B. tropicalis. Setenta y seis (98.7% niños presentaron niveles elevados de IgE total, 48 (88% tenían IgE anti- B. tropicalis positiva. El Western Blot identificó 16 fracciones alergénicas con rango entre 80- 21 kDa. Estos resultados indican que los alérgenos del ácaro B. tropicalis deben incluirse en el diagnóstico exacto de la sensibilización a los ácaros del polvo doméstico en Santa Marta, Colombia. (DUAZARY 2011, 9 - 16AbstractBlomia tropicalis is the predominant indoor mite in Colombia, nevertheless there is not enough information about sensitization to this and other indoor mites, in the asthmatic patients living in Santa Marta. The purpose of this study was to establish the specific IgE responses against to B. tropicalis in pediatric asthmatic patients in Santa Marta. Specific IgE responses were determined by indirect ELISA in 77 children with bronchial asthma. The B. tropicalis major allergenic fractions were identified by Western Blotting using a B. tropicalis protein extract. Seventy six (98.7% children showed high levels of total IgE, 48 (88% had IgE anti-B. tropicalis positive. Sixteen allergenic fractions, between 80 – 21 kDa, were identified by Western Blotting. These results indicate that the B. tropicalisallergens must be included in the precise diagnosis of sensitization to house

  1. Vie-Nouvelle

    African Journals Online (AJOL)

    Chrystelle ATINKPAHOUN

    influent of wastewater treatment plant, greywater, etc. (Kafi et al. ... pollutant loadings related to suspended solids, bound metal ... treatment system for the domestic wastewater. (greywater and ...... thesis, Polytechnic Institute of Lorraine,. Nancy ...

  2. Nouvelle cuisine

    CERN Document Server

    2007-01-01

    Diners at CERN's Restaurant No. 1 have been adjusting to some temporary arrangements while building work takes place in the main service area. The essential renovation will bring many improvements in the near future. The restaurant before restoration. A huge white marquee erected on a green lawn greets the eye. The sight is familiar in the summer months, but the sharp chill in the air disrupts the scene. Instead of a mid-summer's day, it's actually the middle of January. This apparently strange reversal of seasons is a way of providing an additional dining and service area outside Restaurant No. 1. As renovations get underway inside, the mysterious hum of drills and the hollow echo of hammering behind scaffold boards raise our curiosity about what is in-store. 'Everything will be better,' says Mario Zanolini, head waiter of Restaurant No. 1. 'It will be more comfortable for the customers. The free-flow area will be bigger and there will be 7 tills instead of the previous 5.' These are just for starters. ...

  3. Causas e soluções da desigualdade entre negros e brancos: raça ou classe? Políticas específicas ou políticas universalistas?

    Directory of Open Access Journals (Sweden)

    Wellington Gil Rodrigues

    2017-01-01

    Full Text Available Este artigo tem como objetivo apresentar os principais argumentos utilizados no debate sobre as causas das desigualdades entre negros e brancos no Brasil enfatizando as análises de classe e as análises de raça e as possíveis soluções para essa desigualdade, políticas universalistas e políticas específicas. Procura-se demonstrar que o antagonismo entre essas análises pode ser superado em favor de uma análise integradora a qual resulta na adoção de políticas públicas que garantam democraticamente igualdade de acesso ao ensino superior considerando as especificidades dos grupos excluídos sem descuidar das necessidades da população em geral.

  4. Lead accumulation by some plant species cultivated in the vicinity of a lead factory in Sfax; Accumulation du plomb par quelques especes vegetales cultivees au voisinage d'une fonderie de plomb a Sfax

    Energy Technology Data Exchange (ETDEWEB)

    Elloumi, N.; Ben Abdallah, F.; Mezghani, I.; Boukhris, M. [Faculte des Sciences de Sfax, Lab. d' Ecologie Vegetale, Unite de Recherche Biologie de la Vegetation en Milieu Aride, Sfax (Tunisia)

    2003-06-01

    Atmospheric emissions, particularly the particles containing high concentrations of heavy metals, have harmful effects on the environment. The aim of this work is to evaluate the accumulation of a lead factory emissions, on the vegetation near the factory in function of time, distance and climatic factors. Analyses results have showed an important lead accumulation by vegetation located in the vicinity of the factory. Plant species studied here (olive trees, palm trees, almond trees, pomegranate trees and vine) have shown high and variable lead accumulation. Highest concentrations (over than 400 {mu}g/g) were recorded in non-washed leaves of olive trees surrounding the factory. Rapid and considerable decrease of lead content was, however, recorded for the same species situated at a distance bigger than 1 km from the source. Interaction effects study of several factors, such as climatic factors and diversity of plant species on lead accumulation by plants, have shown that the degree of lead accumulation was related to wind direction and distance from pollution source. Lead concentrations in species planted in the NW of the factory and exposed to SE wind direction were higher than that of ones exposed to any other direction. High lead concentrations in the vicinity of the factory seem to indicate that particles and gaseous pollutants fallout in the surrounding of the factory are as much important as the chimney height is reduced. (authors)

  5. Lower respiratory tract infection caused by respiratory syncytial virus in infants: the role played by specific antibodies Infecção por virus sincicial respiratório: o papel dos anticorpos séricos específicos

    Directory of Open Access Journals (Sweden)

    Sandra E. Vieira

    2007-01-01

    conhecimento é importante para o desenvolvimento de medidas terapêuticas e profiláticas. OBJETIVOS: Avaliar: os tipos e genótipos do vírus sincicial que causam infecção respiratória em lactentes e a associação dos anticorpos séricos subtipo-específicos com a ocorrência de infecção; a presença de anticorpos subtipo-específicos nas mães e sua associação com o perfil de anticorpos da criança. MÉTODOS: Estudo prospectivo incluindo lactentes hospitalizados com infecção respiratória. Foi coletada secreção de nasofaringe para investigação viral usando imunofluorescência indireta e cultivo viral. Foi coletado sangue para pesquisa de anticorpos usando o sistema Luminex Multiplex. RESULTADOS: Avaliados 192 lactentes: 60,9% com vírus sincicial (73,5% - A e 20,5% - B. Seis genótipos de vírus sincicial respiratório foram identificados: A5,A2,B3,B5,A7 e B4. A soroprevalência dos anticorpos subtipos-específicos foi alta. A presença e o nível de anticorpos subtipos-específicos foram semelhantes, independentemente da presença de infecção, tipo e genótipo do vírus. As mães e as crianças apresentaram perfis semelhantes de anticorpos. CONCLUSÕES: A prevalência dos anticorpos subtipos-específicos foi elevada mas estes anticorpos não conferiram proteção, independentemente do tipo/genótipo do vírus. A semelhança dos perfis de anticorpos das mães e das crianças foi compatível com transmissão transplacentária.

  6. La catalyse d'épuration des gaz d'échappement automobiles. Situation actuelle et nouvelles orientations Catalytic Automotive Exhaust Gas Depollution. Present Status and New Trends

    Directory of Open Access Journals (Sweden)

    Prigent M.

    2006-11-01

    Full Text Available Cet article passe en revue les différents systèmes catalytiques de post-traitement utilisés actuellement sur la plupart des automobiles pour limiter leurs rejets de polluants. Les systèmes sont différenciés par leur mode de fonctionnement, le type de moteur à dépolluer (deux-temps, quatre-temps, diesel ou essence ou par leur mode de réalisation. Les nouvelles orientations, prévues pour respecter les futures réglementations antipollution, sont également décrites. On montre que certains véhicules prototypes, équipés de moteurs à combustion interne, sont capables d'avoir des émissions très proches de zéro tout comme les véhicules électriques. A review is made of the various types of exhaust gas aftertreatment systems presently used on most vehicles to reduce pollutant emissions. The systems are differentiated by their mode of action, according to the engine type to be depolluted (two-stroke, four-stroke, diesel or spark-ignition, and by their type of make-up. The major developments foreseen in the future, in view of compliance with the new legislations, are described. It is shown that some prototype vehicles with internal combustion engines are able to emit pollutant quantities really close to zero, such as electric cars.

  7. Diferencias en la distancia de lanzamiento y velocidad de balón según el puesto específico en jugadores de balonmano sub-18. (Differences in the throwing distance and ball velocity by playing position in under-18 handball players.

    Directory of Open Access Journals (Sweden)

    Javier Sampedro Molinuelo

    2011-01-01

    Full Text Available ResumenEl presente estudio ha analizado las diferencias entre puestos específicos ofensivos en la distancia delanzamiento con balón medicinal pesado y liviano y en la velocidad de lanzamiento con y sin oposición en jugadores en formación. Para ello, cincuenta y ocho jugadores realizaron pruebas de progresiva especificidad: lanzamiento con balón medicinal pesado (LBMP y ligero (LBML, velocidad de lanzamiento sin (VL y con oposición (VLO.VLO fue menor a VL en todos los puestos específicos, con diferencias significativas en los jugadores laterales (p AbstractThis study aims to analyze the differences in throwing distance with overweight ball and throwing velocity without and with opposition according to the playing positions in trainees handball players. For this purpose, fifty-eight players were assessed in four specific progress throwing situations: throwing with heavy medicinal ball (THMB and light medicinal ball (TLMB, throwing velocity without (TV and with opposition (TVO.TVO was less than TV in all playing positions, with significant differences in back (p doi:10.5232/ricyde2011.02202

  8. Equipo adiabático para medida del coeficiente de absorción específico de un material sometido a un campo magnético alterno y método para realizar dicha medida

    OpenAIRE

    Mediano, Arturo; Natividad, Eva; Palacio, Fernando; Castro, Miguel

    2007-01-01

    Equipo adiabático para medida del coeficiente de absorción específico de un material sometido a un campo magnético alterno y método para realizar dicha medida. En esta patente se describe un equipo que permite medir de forma adiabática el incremento de temperatura experimentado por aquellos materiales que presentan mecanismos activos de disipación de calor al someterlos a un campo magnético alterno. Conocida esta magnitud y el tiempo de aplicación del campo y, conocien...

  9. Nuevos adyuvantes en la inmunoterapia específica de las enfermedades alérgicas: estudio de aspectos inmunológicos, celulares y repercusión funcional respiratoria en un modelo animal de asma bronquial

    OpenAIRE

    Vázquez de la Torre Gaspar, María, María

    2015-01-01

    INTRODUCCIÓN: Las sales de aluminio se vienen utilizando tradicionalmente, como adyuvante de la ITE s.c. convencional. La identificación de adyuvantes alternativos que indujeran una respuesta Th1 y T reguladora, mejoraría la eficacia de la ITE como tratamiento para el asma y otras enfermedades alérgicas. OBJETIVOS: El objetivo general de este proyecto es la comparación de la eficacia, clínica e inmunológica, de diferentes adyuvantes para inmunoterapia específica de las enfermedades alérgicas...

  10. Non increased neuron-specific enolase concentration in cerebrospinal fluid during first febrile seizures and a year follow-up in pediatric patients No incrementos en la concentración de enolasa específica de neurona en el líquido cefalorraquídeo durante el primer ataque febril y al año en pacientes pediátricos

    Directory of Open Access Journals (Sweden)

    ALBERTO J. DORTA-CONTRERAS

    1998-09-01

    Full Text Available Febrile seizures are the commonest acute neurological disorder of early childhood. Studies suggested that febrile seizures are previous acute events from a more serious neurological problem. Due to neuron-specific enolase is generally accepted as a marker for neuropathological processes in the brain, 16 pediatric patients were studied during their first seizures and a year after it. Neuron-specific enolase in cerebrospinal fluid and blood were analysed by an immune enzyme assay. Non pathological neuron-specific enolase values were obtained in both periods in the group of patients. There were no significative differences when paired series statistics test was performed with 95% of confidence. Neuron-specific enolase appears not to be a marker for febrile seizures because its concentration not be increased in cerebrospinal fluid in this group of patients.Los ataques febriles constituyen el trastorno neurológico agudo más común en la infancia temprana. Existen estudios que sugieren que los ataques febriles son eventos agudos previos a problemas neurológicos más severos. Debido a que la enolasa específica de neurona está aceptada generalmente como marcador de procesos neuropatológicos en el cerebro, se estudiaran 16 pacientes pediátricos durante su primer ataque y al año de este. La enolasa específica de neurona en el líquido cefalorraquídeo y sangre fue analizada por una prueba inmunoenzimática. No se obtuvieron valores patológicos de enolasa específica de neurona en ambos períodos en el grupo de pacientes. No hubo diferencias significativas al aplicar el test de series apareadas con un 95% de confianza. La enolasa específica de neurona parece no ser un marcador para ataques febriles porque su concentración no se incrementa en este grupo de pacientes.

  11. Curvas de fusión de regiones genómicas específicas: una herramienta prometedora para el diagnóstico y tipificación de las especies causantes de la leishmaniasis cutánea en Colombia.

    Science.gov (United States)

    Marin, Johana; Urrea, Daniel; Muskus, Carlos; Echeverry, María Clara; Mejía, Ana María; Triana, Omar

    2017-12-01

    Introducción. La leishmaniasis cutánea es una enfermedad causada por parásitos del género Leishmania que tiene gran incidencia en Colombia. El diagnóstico y la identificación de la especie infecciosa son factores críticos en el momento de escoger e iniciar el tratamiento. Actualmente, los métodos de diagnóstico y tipificación requieren procedimientos complejos, por lo que es necesario validar nuevos marcadores moleculares y métodos que simplifiquen el proceso.Objetivo. Desarrollar una herramienta basada en la reacción en cadena de la polimerasa (PCR) con curvas de fusión (High Resolution Melting; PCR-HRM) para el diagnóstico y tipificación de las tres especies de Leishmania de importancia epidemiológica en casos de leishmaniasis cutánea en Colombia.Materiales y métodos. Los genomas de Leishmania panamensis, L. braziliensis y L. guyanensis se compararon mediante métodos bioinformáticos. Las regiones específicas de especie identificadas se validaron mediante PCR. Para los marcadores seleccionados se diseñó una PCR-HRM y se estimaron algunos parámetros de validez y seguridad usando aislamientos de pacientes colombianos caracterizados previamente mediante PCR y análisis de polimorfismos en la longitud de los fragmentos de restricción (Restriction Fragment Length Polymorphism - RFLP; PCR-RFLP) del gen hsp70.Resultados. El análisis genómico comparativo mostró 24 regiones específicas de especie. Sin embargo, la validación mediante PCR solo identificó un marcador específico para cada especie de Leishmania. Los otros marcadores mostraron amplificación cruzada. El límite de detección para los tres marcadores seleccionados fue de un parásito, mientras que la sensibilidad, la especificidad, el valor predictivo positivo y el negativo fueron de 91,4, 100, 100 y 75 %, respectivamente.Conclusiones. Las tres regiones seleccionadas pueden emplearse como marcadores moleculares en el diagnóstico y tipificación de las especies causantes de la

  12. Precipitação média anual e vazão específica média de longa duração, na Bacia do São Francisco Specific yield discharge and mean precipitation in São Francisco Basin

    Directory of Open Access Journals (Sweden)

    Fernando F. Pruski

    2004-12-01

    Full Text Available O Rio São Francisco abrange uma área de drenagem da ordem de 640.000 km² e é responsável pela sustentabilidade de 503 municípios situados na bacia, onde vivem cerca de 14 milhões de pessoas. Neste trabalho analisou-se a variação da precipitação média anual e da vazão específica média de longa duração na Bacia do São Francisco. Foram analisados os dados hidrológicos de 178 estações pluviométricas e 77 estações fluviométricas, sendo a vazão específica média de longa duração obtida dividindo-se a vazão média anual pela área de drenagem da estação fluviométrica considerada e a precipitação média em cada área de drenagem, calculada pelo método do Polígono de Thiessen. Os resultados obtidos permitiram as seguintes conclusões: as precipitações diminuem da nascente para a foz do São Francisco, e as vazões específicas médias de longa duração diminuem ao longo do Rio São Francisco, sendo a máxima vazão específica igual a 22,61 L s-1 km-2, em Iguatama, primeira estação situada neste, e a mínima, igual a 4,22 L s-1 km-2, em Traipu, última estação desse rio.The São Francisco River drains an area of 640,000 km² and is responsible for the sustainability of the 503 municipalities in the basin where 14 million people live. This study was undertaken to investigate the mean precipitation and the specific yield discharge in the São Francisco Basin. The analysis was made considering 178 rain-gauge stations and 77 stations to measure stream flow. The specific yield discharge was obtained by dividing the mean annual discharge by the drainage area upstream from the station, and the mean precipitation in the upstream area from each station was obtained by the Thiessen polygon method. The results indicated that the mean precipitation decreased from the Upper São Francisco to Lower São Francisco, and the specific yield discharge decreases along the river, the maximum specific discharge was 22.6 L s-1 km-2

  13. Species composition and flight periods of horntail wasps (Hymenoptera: Siricidae within Basque Country pine forests, with the confirmation of establishment of the exotic species Urocerus albicornis

    Directory of Open Access Journals (Sweden)

    Goldarazena, A.

    2015-06-01

    Full Text Available Species composition and flight periods of horntails wasps in Basque Country pine forests in northern Spain are studied in order to determine if alien invasive species have been introduced and established. Panel traps baited with Contech Inc. Sirex noctilio lures were erected at sites in six distinct Basque Country forest regions (Menagarai and Gordoa forests in Alava Province, Orio and Zegama forests in Gipuzkoa province and Carranza and Muxika forests in Bizkaia province. Traps were monitored throughout 2011 and 2012. At the same time in January, ten dead logs with oviposition holes from the same localities were collected and reared in emergence cages for wasp collection. In the pheromone traps three autochthonous, Palaearctic species were found: Sirex noctilio Fabricius, 1773, and Urocerus gigas (Linnaeus, 1758, and one exotic species Urocerus albicornis (Fabricius, 1781 was detected. From logs, the same three species plus U. augur (Klug, 1803 were obtained with a collection of parasitoids. Sirex noctilio, Urocerus gigas and Urocerus albicornis were found in all provinces of the Basque Country. Trapping results show flight occurs from late June to September. The establishment of U. albicornis, an exotic species from North America, is confirmed in northern Spain.El objetivo de este estudio fue determinar la composición de especies y el periodo de vuelo de las avispas de la madera en los bosques de coníferas del País Vasco (norte de España, para conocer si especies invasoras previamente introducidas se habían establecido. Trampas de interceptación tipo Panel cebadas con dispositivos Contech específicos para Sirex noctilio fueron colocadas en seis diferentes areas forestales del País Vasco (Menagarai y Gordoa en la provincial de Álava, Orio y Zegama en Gipuzkoa y Carranza y Muxika en Bizkaia. Las trampas fueron monitoreadas a lo largo de 2011 y 2012. Al mismo tiempo en enero, se recogieron de las mismas localidades 10 trozas con agujeros

  14. Educación física en los libros de texto escolares anteriores al franquismo (II; Cartillas y manuales específicos. Physical education in Spanish school textbooks priior to Francoism (II: Ementary treatises and specific handbooks.

    Directory of Open Access Journals (Sweden)

    Antonio David Galera Pérez

    2017-06-01

    Full Text Available (ES Las obras específicas para la Educación Física escolar anteriores a 1939 recomiendan como principales contenidos los juegos y la gimnasia educativa y en menor medida los paseos y excursiones, y el canto y la música; encontramos asimismo un aspecto avanzado de interdisciplinariedad: la recomendación de intercalar pausas activas entre materias no corporales, que sería recogida por el plan de 1937 de la República, pero nunca más posteriormente. No existen diferencias señaladas entre obras generales (estudiadas en un artículo anterior y las obras específicas aquí abordadas, así como tampoco entre las obras publicadas durante la I Restauración (1875-1931 y durante la II República (1931-1939. (EN Prior to 1939, most of Spanish textbooks specific for Physical Education matter in Elementary education mainly recommend games and gymnastics and to a smaller extent walks and outings, and singing and music; we also find an interdisciplinary advanced aspect: the recommendation for inserting the so-called active pauses, included in the 1937 curricular design but nevermore. There are no outstanding differences between general textbooks (revised in a previous article and the specific ones we are studying here, neither between works published during Spanish 1st. Restoration (1875-1931 nor during 2nd. Republic (1931-1939.

  15. Endangered Species Day | Endangered Species Coalition

    Science.gov (United States)

    Annual Top 10 Report Protecting the Endangered Species Act Wildlife Voices Stand for Wolves Endangered Campaigns Wildlife Voices Protecting the Endangered Species Act Annual Top 10 Report Endangered Species Day Stand for Wolves Vanishing BOOK: A Wild Success The Endangered Species Act at 40 Endangered Species The

  16. Uso e conhecimento ortográfico no transtorno específico da leitura Orthographic knowledge and use in children with dyslexia

    Directory of Open Access Journals (Sweden)

    Rosana Siqueira Dias

    2008-01-01

    Full Text Available OBJETIVO: Investigar como escolares com Transtorno Específico de Leitura (TLE aplicam em suas escritas a regra de correspondência fono-grafêmica independente do contexto e como identificam e analisam os erros que produzem na escrita, segundo as variáveis: freqüência de aparecimento do item lingüístico e a série do escolar. MÉTODOS: Foram analisados e comparados os erros de escrita obtida a partir de ditado de palavras de alta e baixa freqüência e pseudopalavras, de escolares de 1ª a 4ª série da rede particular de ensino fundamental. Avaliaram-se 56 escolares: 28 com TLE constituíram o grupo pesquisa e 28 sem queixas ou alterações, pareados por idade, sexo e série, o grupo de comparação. Justificativas dos erros e acertos de escrita foram gravadas e comparadas. RESULTADOS: Os escolares do grupo pesquisa mostraram pior desempenho quando comparados com o de comparação. Além disso, observou-se diminuição dos erros, conforme a progressão da escolaridade, principalmente na escrita de palavras de alta freqüência. Os escolares do grupo pesquisa apresentaram maior dificuldade em analisar os itens lingüísticos escritos e reconhecer as escritas corretas. CONCLUSÕES: As crianças com transtorno específico de leitura apresentaram maior dificuldade em escrever e analisar a escrita de ortografia transparente. O efeito da freqüência do item lingüístico facilitou a identificação do erro. Nesse grupo de escolares os erros diminuíram com a progressão das séries e variaram conforme o item lingüístico.PURPOSE: To investigate how children with dyslexia use the phonographemic correspondence rule in their writing regardless of context and how they identify and analyze their writing mistakes according to the variables: frequency of occurrence of the linguistic item and school grade. METHODS: The writing errors observed on a task of dictation of high- and low-frequency words and pseudowords were analyzes and compared. Fifty

  17. Estudio de la influencia de la superfície específica de los materiales reciclados procedentes de RCDS, en la medida del impacto ambiental a través de procesos de lixiviación

    OpenAIRE

    Sarmiento Mantilla, Adriana Carolina

    2011-01-01

    Desde la perspectiva ambiental, la peligrosidad de un elemento no siempre obedece a la cantidad total presente de este en un residuo, sino a la movilidad o capacidad de disolverse en contacto con agua y otras sustancias. Esta capacidad de lixiviar está determinada por parámetros químicos, ambientales y físicos, y entre estos últimos el tamaño de partícula y su superficie específica. Mediante este trabajo se pretende analizar la variabilidad de los compuestos lixiviados y su comportam...

  18. Study of superconductors of the second type in the lead-thallium system; Etude des supraconducteurs de la deuxieme espece du systeme plomb-thallium

    Energy Technology Data Exchange (ETDEWEB)

    Bon Mardion, G [Commissariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires

    1965-07-01

    The author has shown by magnetization measurements on lead-thallium alloys having from 5 to 70 atom per cent of thallium, that superconductors of the second type definitively exist. The results obtained, in particular on the upper critical field H{sub C2} are in good agreement with the models of Ginzburg, Landau, Abrikosov, Gorkov and Goodman. Finally resistivity measurements have confirmed the occurrence of a fourth upper critical field, the existence of which has been theoretically predicted by St James and de Gennes. (author) [French] L'auteur par des mesures d'aimantation sur les alliages plomb-thallium, de composition variant de 5 pour cent a 70 pour cent At. de thallium, a montre qu'il fallait admettre definitivement l'existence des supraconducteurs de la deuxieme espece. Les resultats obtenus, en particulier sur le champ critique superieur H{sub c2} sont en bon accord avec les modeles de Ginzburg, Landau, Abrikosov, Gorkov et Goodman. Enfin des mesures de resistivite ont confirme l'existence d'un quatrieme champ critique superieur H{sub c3}, existence prevue theoriquement par St James et de Gennes. (auteur)

  19. Identificación y análisis de secuencias consenso de RNAs de transferencia aminoácido específicos, según la procedencia biológica

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    Carolina Diaz Arenas

    2003-01-01

    Full Text Available Desde el descubrimiento del código genético se han llevado a cabo varios estudios sobre el tRNA, debido a su gran importancia en la síntesis de proteínas. En este sentido, se realiza el presente estudio sobre la estructura primaria de la molécula y su relación con la teoría de coevolución del código genético, propuesta por Wong (1975. Se construyó una base de datos específica para tRNAs aminoácido específicos, con 10.504 secuencias únicas. Las secuencias se obtuvieron del Genebank y de Mathias Sprinzl y se organizaron en grupos, como sigue: archaebacteria, eubacteria, unicelulares, animales, plantas y cloroplasto. Las secuencias se alinearon usando Clustal y se obtuvieron los consenso con Genedoc, respetando siempre los grupos establecidos. Se empleo una metodología alternativa, en la cual se exploraron homologías desde 100% hasta 60%, en intervalos de 5%. Las secuencias consenso se agruparon mediante el algoritmo Neighbour-joining de Clustal X. Se encontró que las secuencias consenso tienen en promedio 47.30 bases, esto representa el 63.90% de la longitud promedio (74 bases de las secuencias de tRNAs. Las secuencias consenso son ricas en bases con 100% de homología, lo cual representa cerca del 60.80% de la longitud total del consenso. Más aún, los consensos mostraron mayor proporción de bases CG en general. Los siguientes grupos son los más representativos: 1. "(ala,cys" se encontró en eubacteria, unicelulares, animales y cloroplastos. 2. "(ile,ala" se encontró en archaebacteria, eubacteria, unicelulares, plantas y cloroplastos. 3. "(ile,asn" en archaeacteria, unicelulares, animales, plantas y cloroplastos. 4. "(ala,asn" en archaebacteria, unicelulares, plantas y cloroplastos. Estos resultados muestran el alto grado de conservación de la estructura primaria de la molécula de tRNA y sugieren la existencia de huellas sobre el origen del código genético.

  20. Estudio comparativo del crecimiento y la ramificación de brotes anuales en dos especies de Nothofagus (Nothofagaceae y en híbridos inter-específicos Comparative study of annual shoot growth and branching in two species of Nothofagus (Nothofagaceae and inter-specific hybrids

    Directory of Open Access Journals (Sweden)

    Cristian Torres

    2009-12-01

    Full Text Available Las ramas principales y secundarias se diferencian en mayor o menor medida según las especies, lo cual puede observarse en base al crecimiento primario de los brotes que las originan. En ejemplares de vivero juveniles-adultos de Nothofagus obliqua, N. nervosa e híbridos entre ambas especies, se compararon la dinámica de alargamiento, el tamaño y la morfología de dos brotes distales de ramas principales: uno que continúa el alargamiento de la rama principal y el otro que inicia una rama secundaria. En N. alpina y en híbridos, los dos brotes más distales se diferencian más que en N. obliqua. A pesar de la homogeneidad ambiental en el vivero y el origen geográfico común para los ejemplares de N. nervosa y los híbridos, hubieron diferencias fenológicas y morfológicas entre estas entidades. La duración y tasa de alargamiento y la longitud final de los brotes fueron altamente variables en cada entidad. Las variaciones entre entidades en la diferenciación de ejes podrían indicar diferencias en sus capacidades de uso del espacio circundante. La diferenciación entre ramas principales y secundarias se iniciaría en el estado de yema. La variación intra-específica fenológica y morfológica es útil para programas de selección artificial de individuos.Main and secondary branches are more or less differentiated according to the species and this could be observed during the primary growth of the shoots that produce them. In young-adult trees of Nothofagus obliqua, N. nervosa and hybrids between them growing in a common garden, growth dynamics, size and morphology were compared between two distal shoots produced by main branches: one of these shoots continued the extension of the main branch whereas the other initiated a secondary branch. The two distal shoots differed from each other more notably in N. nervosa and in the hybrids than in N. obliqua. Despite the environmental homogeneities at the nursery and the common geographic origin of

  1. Los inicios de la enseñanza de las lenguas para fines específicos en el Real Colegio de Cirugía de la Armada de Cádiz

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    Manuel Botella Rodríguez

    2007-10-01

    Full Text Available En 1748 se funda en Cádiz (España el Real Colegio de Cirugía de la Armada. Uno de los legados más importantes que se conservan de aquella fundación es su valioso catálogo bibliográfico humanístico y científico. Hemos analizado diccionarios y manuales de gramática destinados al aprendizaje de lenguas extranjeras (fundamentalmente francés e inglés con el fin de llevar a cabo un estudio y recrear lo que pudo ser el método de adquisición de lenguas durante los siglos XVIII y XIX y encontrar un posible embrión del aprendizaje de lenguas para fines específicos en la Universidad de Cádiz.

  2. Evaluación de una experiencia significativa en el diseño curricular de un curso de inglés específico con énfasis en TIC

    Directory of Open Access Journals (Sweden)

    Keiby Caro Oviedo

    2015-10-01

    Full Text Available Este artículo da cuenta de la evaluación de una experiencia significativa en el diseño curricular de un curso de inglés específico con énfasis en TIC (Tecnologías de la Información y la Comunicación nivel 1, ofrecido por el Centro de Idiomas de la Universidad Simón Bolívar a los estudiantes del programa de Ingeniería de Sistemas durante el segundo semestre de 2011. AbstractThis article reports on the evaluation of significant experience in curriculum design of a specific English course with emphasis on ICT (Information and Communication Technologies Level 1, offered by the Language Centre of the University Simon Bolivar students of Systems Engineering program during the second semester of 2011.

  3. Intranasal sensitization with Blomia Tropicalis antigens induces allergic responses in mice characterized by elevated antigen-specific and non-specific serum ige and peripheral blood eosinophil counts Sensibilização intranasal com antígenos de Blomia tropicalis induz respostas alérgicas em camundos caracterizadas pela elevada contagem de soro IgE antígeno-específico e não específico e de eosinófilos no sangue periférico

    Directory of Open Access Journals (Sweden)

    Fumiko Takeda

    2004-02-01

    Full Text Available In order to evaluate the potential allergenicity of Blomia tropicalis (Bt antigen, IgE production of both specific and non-specific for Bt antigen was monitored in BALB/c mice after exposure to the antigen by nasal route. It was evidenced that B. tropicalis contains a functional allergen in its components. The allergenic components, however, when administered intranasally without any adjuvant, did not function to induce IgE response within a short period. On the other hand, intranasal inoculation of Bt antigens augmented serum IgE responses in mice pretreated by a subcutaneous priming injection of the same antigens. Inoculation of Bt antigen without subcutaneous priming injections induced IgE antibody production only when the antigen was continuously administered for a long period of over 24 weeks. Even when the priming injection was absent, the Bt antigen inoculated with cholera toxin (CT as a mucosal adjuvant also significantly augmented the Bt antigen-specific IgE responses depending on the dose of CT co-administered. The present study also demonstrated that Bt antigen/CT-inoculated mice showed increased non-specific serum IgE level and peripheral blood eosinophil rates without noticeable elevations of the total leukocyte counts. The immunoblot analysis demonstrated 5 main antigenic components reactive to IgE antibodies induced. These components at about 44-64 kDa position were considered to be an important candidate antigen for diagnosis of the mite-related allergy.Para avaliar a capacidade alergizante do antígeno da Blomia tropicalis (Bt a produção de IgE específica e não específica a antígeno Bt foi monitorada em camundongos BALB/c após exposição ao antígeno por via nasal. Foi evidenciado que Bt contem um alérgeno funcional em seus componentes. Os componentes alergênicos entretanto, quando administrados por via intra-nasal, sem qualquer adjuvante, não induzem resposta IgE durante um pequeno período. Por outro lado, a inocula

  4. Endometriose de septo retovaginal: doença de diagnóstico e tratamento específicos Rectovaginal septum endometriosis: a disease with specific diagnosis and treatment

    Directory of Open Access Journals (Sweden)

    Mauricio Simões Abrão

    2003-09-01

    Full Text Available RACIONAL: O envolvimento do septo retovaginal, reto e sigmóide pela endometriose pode causar sintomas intensos como dismenorréia, dor pélvica, dispareunia de profundidade, tenesmo e proctorragia cíclicos, em mulheres em idade reprodutiva. O diagnóstico pode ser suspeitado diante da história clínica típica e exame ginecológico adequado, ou ainda através de exame retal, enema opaco ou colonoscopia, entre outros. As indicações cirúrgicas, em geral, estão relacionadas à intensidade dos sintomas e falha no tratamento conservador. No entanto, o tratamento de escolha, para este tipo de endometriose, é a ressecção cirúrgica do tecido acometido, a fim de aliviar os sintomas e evitar progressão da doença. A localização correta assim como a avaliação da presença de extensão do processo em direção ao reto, ligamentos uterossacros ou septo retovaginal é extremamente importante para se garantir um tratamento cirúrgico eficaz. OBJETIVO: Descrever os principais aspectos relacionados à endometriose de septo retovaginal e fornecer aos cirurgiões gerais algumas informações específicas sobre esta enigmática doença. CONCLUSÃO: A endometriose de septo retovaginal é doença freqüente, de diagnóstico e tratamento específicos.BACKGROUND: The involvement of the rectovaginal septum, of rectum and sigmoid by endometriosis leads to intense symptoms as dysmenorrhea, pelvic pain, deep dyspareunia, tenesmus and hematochezia in young and middle aged women during periods. The diagnosis can be made by tipycal history and vaginal examination, rectal examination, barium enema, proctoscopy and so on. The indications of operation include severe clinic symptoms and failed conservative therapy. The treatment of choice for this type of endometriosis is the surgical resection of affected tissue, in order to relieve patient symptoms, and avoid disease progression. The correct assessment as to the presence and extension of the endometriosis

  5. Acordo Coletivo com propósito específico e o projeto de lei 4193/2012: as convergências em torno de uma pretensa desregulamentação trabalhista via negociação coletiva.

    OpenAIRE

    Ana Flavia Dantas Figueirêdo Silva

    2014-01-01

    A dissertação tem por objetivo analisar o anteprojeto de lei denominado Acordo Coletivo com propósito específico/ Acordo Coletivo Especial-ACE, criado pelo Sindicato dos Metalúrgicos do ABC e entregue no início de 2011 ao Poder Executivo Federal e o projeto de lei 4193 de 2012 de autoria do deputado Irajá Abreu. O anteprojeto propõe alteração legislativa com fim à concretização dos comitês sindicais de empresa, buscando uma suposta democratização nas relações de trabalho com a possibilidad...

  6. Sorption mechanisms of selenium species (selenite and selenate) on copper-based minerals; Mecanismes de sorption des especes du selenium (selenite et seleniate) sur des mineraux a base de cuivre

    Energy Technology Data Exchange (ETDEWEB)

    Devoy, J

    2001-09-01

    The sorption of radionuclides on the surface of minerals represents a process capable to delay the migration of the elements from a spent fuel deep repository towards the biosphere. In the framework of a deep underground repository, an engineered clay barrier has a high trapping capacity for cationic radio-elements, in particular because of the negative charge of clay surfaces. However, anionic radioelements like selenium species, would be only weakly retained by chemical processes. In order to optimize the trapping capacity of a clay barrier with respect to anionic species, prospective studies are carried out in order to find and evaluate some minerals with specific chemical trapping functions. Among radionuclides, the case of selenium has to be considered because its isotope {sup 79}Se is present in radioactive wastes and has a half life time of 6.5 10{sup 4} years. It is also judicious to find a mineral capable of trapping simultaneously several anionic radio-elements. Copper oxides and sulfides (Cu{sub 2}O, CuO, Cu{sub 2}S, CuS, CuFeS{sub 2} and Cu{sub 5}FeS{sub 4}) are good adsorbents with respect to selenium species (selenite and selenate). These minerals, with their selenium retention properties, could be used also for the decontamination of soils and waters or to process industrial effluents. The sorption mechanisms have been studied in details for copper oxides (Cu{sub 2}O and CuO) with respect to selenite and selenate. Chalcomenite precipitates in acid pH conditions when selenite is added to a Cu{sub 2}O and CuO suspension. Selenate, in contact with cuprite (Cu{sub 2}O) leads also to a selenium-based precipitate in acid pH environment. For higher pH values, selenite and selenate are adsorbed on copper oxides (Cu{sub 2}O and CuO) and lead to internal and external sphere complexes, respectively. In the case of a selenite/cuprite mixture in basic pH environment and at the equilibrium, a chemical reaction occurs between the oxidation product of cuprite, Cu

  7. Eulerian numerical simulation of gas-solid flows with several particles species; Modelisation numerique eulerienne des ecoulements gaz-solide avec plusieurs especes de particules

    Energy Technology Data Exchange (ETDEWEB)

    Patino-Palacios, G

    2007-11-15

    The simulation of the multiphase flows is currently an important scientific, industrial and economic challenge. The objective of this work is to improve comprehension via simulations of poly-dispersed flows and contribute the modeling and characterizing of its hydrodynamics. The study of gas-solid systems involves the models that takes account the influence of the particles and the effects of the collisions in the context of the momentum transfer. This kind of study is covered on the framework of this thesis. Simulations achieved with the Saturne-polyphasique-Tlse code, developed by Electricite de France and co-worked with the Institut de Mecanique des Fluides de Toulouse, allowed to confirm the feasibility of approach CFD for the hydrodynamic study of the injectors and dense fluidized beds. The stages of validation concern, on the one hand, the placement of the tool for simulation in its current state to make studies of validation and sensitivity of the models and to compare the numerical results with the experimental data. In addition, the development of new physical models and their establishments in the code Saturne will allow the optimization of the industrial process. To carry out this validation in a satisfactory way, a key simulation is made, in particular a monodisperse injection and the radial force of injection in the case of a poly-disperse flow, as well as the fluidization of a column made up of solid particles. In this last case, one approached three configurations of dense fluidized beds, in order to study the influence of the grid on simulations; then, one simulates the operation of a dense fluidized bed with which one characterizes the segregation between two various species of particles. The study of the injection of the poly-disperse flows presents two configurations; a flow Co-current gas-particle in gas (Case Hishida), and in addition, a poly-phase flow in a configuration of the jet type confined with zones of recirculation and stagnation (case

  8. Caracterização da comunidade bacteriana endofítica de citros por isolamento, PCR específico e DGGE Characterization of the endophytic bacterial community from citrus by isolation, specific PCR and DGGE

    Directory of Open Access Journals (Sweden)

    Paulo Teixeira Lacava

    2006-04-01

    Full Text Available O objetivo deste trabalho foi caracterizar a comunidade bacteriana endofítica de plantas assintomáticas (escapes e afetadas pela clorose variegada dos citros (CVC por meio de isolamento em meio de cultura, técnica de gradiente desnaturante em gel de eletroforese (DGGE e detecção de Methylobacterium mesophilicum e Xyllela fastidiosa por meio de PCR específico, para estudar esta comunidade e sua relação com a ocorrência da CVC. A análise da comunidade bacteriana via DGGE permitiu a detecção de X. fastidiosa, bem como Klebsiella sp. e Acinetobacter sp. como endófitos de citros. Foram observados também Curtobacterium sp., Pseudomonas sp., Enterobacter sp. e Bacillus spp. Utilizando primers específicos, Methylobacterium mesophilicum e X. fastidiosa também foram observadas, reforçando hipóteses de que estas bactérias podem estar interagindo no interior da planta hospedeira.The aim of this work was to characterize endophytic bacterial community of assintomatic (escape and Citrus Variegated Chlorosis (CVC-affected citrus plants using isolation in culture medium, denaturing gradient gel electrophoresis (DGGE technique and Methylobacterium mesophilicum as well as Xylella fastidiosa specific PCR, allowing to assess this community and its interactions with CVC. The study of bacterial community by DGGE analysis allowed the detection of X. fastidiosa, as well as Klebsiella sp. e Acinetobacter sp., which were not detected previously. Curtobacterium sp., Pseudomonas sp., Enterobacter sp. and Bacillus spp. were also observed as endophyte in citrus plants. Using specific primers Methylobacterium mesophilicum and X. fastidiosa were observed, reinforcing that these bacteria could interact inside the host plant.

  9. Le rapport Coopération pour le développement de l'OCDE souligne ...

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

    14 févr. 2018 ... Source: Rapport Coopération pour le développement 2017 de l'OCDE ... des nouvelles sources de données et des nouveaux types de données qui ... constituent quelques-unes des nouvelles sources d'information qui offrent ...

  10. Injerto óseo del seno maxilar en la reparación de defectos craneofaciales específicos

    Directory of Open Access Journals (Sweden)

    José Manuel Díaz Fernández

    1998-08-01

    Full Text Available Se realizó un estudio retrospectivo a 56 pacientes con defectos anatómicos específicos del complejo craneofacial, en los cuales se emplearon procedimientos reconstructivos con injerto óseo autógeno de la pared anterior del seno maxilar, en el Servicio de Cirugía Maxilofacial del Hospital Provincial "Saturnino Lora" de Santiago de Cuba, desde 1986 hasta 1994. Este tipo de injerto demostró ser seguro en la reparación de las fracturas del suelo orbitario con extensión máxima de 2 x 3 cm, así como en las deficiencias circunscritas del contorno facial en áreas tales como: frontal, pirámide nasal, cuerpo cigomático, apoyo cigomático maxilar, cuerpo mandibular, reborde orbital superior o inferior. La morbilidad posoperatoria fue mínima y la vía de acceso evita la incisión y cicatriz externa y previene complicaciones como el neumotórax, la perforación de la duramadre y la dificultad en la ambulación, a veces presentes en las áreas donantes tradicionales.A retrospective study was performed of 56 patients who had specific craniofacial defects which were treated with reconstructive methods with the autogenous bone graft of the anterior maxillar sinus wall in the Maxillofacial Surgery Service at "Saturnino Lora" Provincial Hospital in Santiago de Cuba province from 1986 to 1994. This type of grafting proved to be safe in the reconstruction of maximum 2 cm long 3 cm wide orbitary floor fractures and of facial configuration defects in such areas as front, nasal pyramide, zigomatic corpus, zigomatic maxillary support, corpus mandibullae, and upper or low orbitary fissure. The post-operation morbility was minimum as well as the access path that prevents the external acarf and complications like pneumothorax, perforation of dura mater and movement difficulties sometimes present in the traditional donor areas.

  11. The photovoltaic ambitious of EDF

    International Nuclear Information System (INIS)

    Houot, G.

    2008-01-01

    Added to the wind energy, EDF develops the photovoltaic by its subsidiaries EDF Energies Nouvelles, for the big power plants and EDF Energies Nouvelles Reparties centralized on the market of small installations for roofs. The author analyzes the society management and project concerning the photovoltaic development. (A.L.B.)

  12. La participation des acteurs locaux à l’élaboration et l’évaluation des politiques publiques de développement durable  en Nouvelle-Calédonie

    Directory of Open Access Journals (Sweden)

    Séverine Bouard

    2008-11-01

    Full Text Available L’objet de cet article est d’explorer les conditions et l’opérationnalité d’une réflexion participative sur le développement durable et ses implications pour élaborer et évaluer des politiques publiques de développement. Après une présentation succincte des controverses dont fait l’objet le concept de développement durable à l’échelle mondiale, nous tenterons de préciser les enjeux de durabilité dans le contexte de la Nouvelle-Calédonie. L’entrée privilégie les articulations entre les trois dimensions de la durabilité, en s’appuyant sur les formes localement perçues de la performance économique, de l’intégrité de l’environnement et de l’équité sociale. Pour illustrer ces enjeux, nous nous intéressons plus précisément à la gestion sociale des impacts d’un important projet industriel d’extraction et de traitement du nickel dans la province Nord de Nouvelle-Calédonie. L’article décrit ensuite les principes à respecter pour la mise en place d’un suivi évaluation concerté entre les différents acteurs, susceptible de faciliter la prise en charge de cette transversalité et la gestion sociale des impacts du projet. Nous partons pour cela des acquis d’un programme de recherche portant sur l’élaboration d’une méthode de suivi évaluation participatif des programmes de développement local en province Nord. Enfin, nous insisterons sur les contraintes à l’efficacité et à la pérennité de dispositifs réellement participatifs, mais aussi à l’application des principes du développement durable, notamment dans le contexte du Pacifique insulaire.The aim of this article is to investigate the conditions and the interests of a participatory reflexion on the sustainable development and its consequences to draw up and to assess development policies. After a brief display of the controversies carried out by the use and sense of the “sustainable development”, we explain what is at

  13. OFFERS FOR OUR MEMBERS

    CERN Multimedia

    Association du personnel

    2013-01-01

    WALIBI Parking gratuit !! Et oui ! désormais le Parking au Parc Walibi est Gratuit !! 2 avantages à cela : - 5 euros d’économie par véhicule, une bonne nouvelle pour le budget ! - Plus d’attente à votre arrivée ! En effet vous êtes orienté à votre arrivée par notre équipe, mais plus d’arrêt ! N’hésitez pas à faire circuler cette bonne nouvelle et profitez-en pour découvrir nos 2 nouveautés 2013 ! - Les plongeurs de l’extrême dans un spectacle intitulé Wet Side Story !! - Une nouvelle attraction pour enfant !   * * * * *

  14. Nouvelle structure de capteur à courants de Foucault et algorithme associé pour la mesure des propriétés électrique et magnétique d'un métal

    Science.gov (United States)

    Lê, Minh-Quang; Placko, Dominique

    1995-06-01

    This paper describes a new structure for eddy-current transducers which improves sensitivity while maintaining high lateral resolution. We have developed an analytical model to allow a model-based inversion from transducers signals to estimate thick and homogeneous plates electrical conductivity, magnetic permeability and/or lift-off. The inversion procedure is described and shows the possibility of a precise simultaneous estimation of the three parameters. Experiments were conducted with magnetic and non magnetic metals. Cet article décrit une nouvelle structure de capteur à courants de Foucault qui permet d'améliorer la sensibilité du capteur tout en conservant sa résolution latérale. Nous avons développé un modèle analytique de ce capteur qui peut être inversé pour estimer la conductivité électrique, la perméabilité magnétique d'une cible homogène et/ou la distance capteur-cible. La procédure d'inversion a été décrite et montre une possibilité d'estimer ces trois paramètres avec précision. L'expérience a été effectuée sur des métaux magnétiques et amagnétiques.

  15. Slope variation and population structure of tree species from different ecological groups in South Brazil

    Directory of Open Access Journals (Sweden)

    Edmilson Bianchini

    2010-09-01

    Full Text Available Size structure and spatial arrangement of 13 abundant tree species were determined in a riparian forest fragment inParaná State, South Brazil (23"16'S and 51"01'W. The studied species were Aspidosperma polyneuron Müll. Arg., Astronium graveolens Jacq. and Gallesia integrifolia (Spreng Harms (emergent species; Alseis floribunda Schott, Ruprechtia laxiflora Meisn. and Bougainvillea spectabilis Willd. (shade-intolerant canopy species; Machaerium paraguariense Hassl, Myroxylum peruiferum L. and Chrysophyllum gonocarpum (Mart. & Eichler ex Miq. Engl. (shade-tolerant canopy species; Sorocea bonplandii (Baill. Bürger, Trichilia casaretti C. Dc, Trichilia catigua A. Juss. and Actinostemon concolor (Spreng. Müll. Arg. (understory small trees species. Height and diameter structures and basal area of species were analyzed. Spatial patterns and slope correlation were analyzed by Moran's / spatial autocorrelation coefficient and partial Mantel test, respectively. The emergent and small understory species showed the highest and the lowest variations in height, diameter and basal area. Size distribution differed among emergent species and also among canopy shade-intolerant species. The spatial pattern ranged among species in all groups, except in understory small tree species. The slope was correlated with spatial pattern for A. polyneuron, A. graveolens, A. floribunda, R. laxiflora, M. peruiferum and T. casaretti. The results indicated that most species occurredin specific places, suggesting that niche differentiation can be an important factor in structuring the tree community.Visando contribuir para o conhecimento das estratégias devida de espécies em fragmentos florestais, foram determinadas as estruturas de tamanho e espacial de 13 espécies arbóreas do remanescente de floresta ciliar no Estado do Paraná, no Sul do Brasil (23"16'S e 51"01'W. Foram analisadas as espécies: Aspidosperma polyneuron Müll. Arg., Astronium graveolens Jacq. e Gallesia

  16. URGENCES NOUVELLE VERSION

    CERN Multimedia

    Medical Service

    2002-01-01

    The table of emergency numbers that appeared in Bulletin 10/2002 is out of date. The updated version provided by the Medical Service appears on the following page. Please disregard the previous version. URGENT NEED OF A DOCTOR GENEVAPATIENT NOT FIT TO BE MOVED: Call your family doctor Or SOS MEDECINS (24H/24H) 748 49 50 Or ASSOC. OF GENEVA DOCTORS (7H-23H) 322 20 20 PATIENT CAN BE MOVED: HOPITAL CANTONAL 24 Micheli du Crest 372 33 11 382 33 11 CHILDREN'S HOSPITAL 6 rue Willy Donzé 382 68 18 382 45 55 MATERNITY 24 Micheli du Crest 382 68 16 382 33 11 OPHTALMOLOGY 22 Alcide Jentzer 382 84 00 HOPITAL DE LA TOUR Meyrin 719 61 11 CENTRE MEDICAL DE MEYRIN Champs Fréchets 719 74 00 URGENCES : FIRE BRIGADE 118 FIRE BRIGADE CERN 767 44 44 BESOIN URGENT D'AMBULANCE (GENEVE ET VAUD) : 144 POLICE 117 ANTI-POISON CENTRE 24H/24H 01 251 51 510 EUROPEAN EMERGENCY CALL: 112 FRANCE PATIENT NOT FIT TO BE MOVED: call your family doctor PATIENT CAN BE MOVED: ST. JULIE...

  17. Fobia específica: um estudo transversal com 103 pacientes tratados em ambulatório Specific phobia: a transversal study with one hundred and three outpatients

    Directory of Open Access Journals (Sweden)

    Mauro Barbosa Terra

    2007-01-01

    Full Text Available OBJETIVOS: Este estudo tem por objetivo investigar a presença de fobia específica (FE entre pacientes atendidos em um ambulatório de psiquiatria. MÉTODOS: Foi realizado um estudo transversal, no qual foi aplicado o SCID-I em 103 pacientes, para se examinar a ocorrência de fobia específica. Os dados foram analisados por meio de medidas descritivas e mediante os testes de independência baseados na estatística qui-quadrado de Pearson ou no teste exato de Fisher. RESULTADOS: Foi verificada FE em 26,2% dos pacientes. As mulheres tinham duas vezes maior chance de apresentar FE que os homens. Em 96,3% do total de fóbicos, a FE não havia sido identificada pelo psiquiatra com quem se consultavam, e esses pacientes não estavam recebendo tratamento para FE. Entre as comorbidades, o diagnóstico mais freqüente foi depressão, que apareceu em 15,6% da amostra. No total, identificamos 39 fobias, sendo 13 do tipo animal; 12 do tipo ambiente-natural; 3 do tipo sangue-injeção-ferimentos; e 11 do tipo situacional. CONCLUSÃO: A FE tem uma freqüência elevada entre pacientes ambulatoriais, sendo mais comum entre as mulheres. No entanto, na maioria das vezes, esse transtorno não é diagnosticado e assim não recebe tratamento adequado, já que o foco da atenção fica concentrado nas comorbidades.OBJECTIVES: The study was designed to investigate the presence of specific phobias (SP among psychiatric outpatients. METHODS: A transversal study was carried out in which SCID-I was applied to 103 patients to determine the occurrence of specific phobia. The data were reviewed through descriptive measures and independence tests based on Pearson's chi-square test or Fisher's exact test. RESULTS: Specific phobias were found in 26.2% of the patients. Females were twice as likely as males to present SP. In 96.3% of the phobic patients SP had not been diagnosed by their psychiatrists and thus was not being treated. The most common comorbidities among these

  18. Analgésicos inibidores específicos da ciclooxigenase-2: avanços terapêuticos Analgésicos inhibidores específicos de la ciclooxigenase-2: avanzos terapéuticos Specific cyclooxygenase-2 inhibitor analgesics: therapeutic advances

    Directory of Open Access Journals (Sweden)

    Wilson Andrade Carvalho

    2004-06-01

    Full Text Available JUSTIFICATIVA E OBJETIVOS: Os antiinflamatórios não-esteroidais (AINE estão entre as drogas mais prescritas e usadas no mundo, incluindo a utilização em Anestesiologia. O propósito desta revisão é discutir alguns aspectos atuais da bioquímica da ciclooxigenase, que vem servindo de base para o desenvolvimento dos novos AINE. CONTEÚDO: Estas drogas exercem suas ações principalmente através da inibição da ciclooxigenase (COX, a enzima chave que catalisa a conversão de ácido araquidônico em prostaglandinas e tromboxanos. Pelo menos duas isoformas da COX já foram identificadas, a COX-1, que é constitutivamente expressa na maioria dos tecidos, e a COX-2, que é uma forma induzível da enzima localizada principalmente nas células e tecidos envolvidos em processos inflamatórios. Com a descoberta da COX-2 e a determinação de sua estrutura, foi possível desenvolver drogas mais seletivas que reduzem a inflamação sem afetar a COX-1, protetora do estômago e rins, dando origem a uma nova geração de compostos antiinflamatórios denominados de inibidores específicos da COX-2. CONCLUSÕES: Embora estes compostos de última geração apresentem menor toxicidade para o trato gastrintestinal, outros efeitos adversos graves têm sido observados, incluindo insuficiência renal e efeitos cardiovasculares, como o infarto agudo do miocárdio e a trombose. A despeito destes efeitos colaterais, estes novos fármacos estão sendo testados em outras condições clínicas, principalmente no tratamento preventivo do câncer e da doença de Alzheimer.JUSTIFICATIVA Y OBJETIVOS: Los antiinflamatorios no-esteroidales (AINE están entre las drogas más prescritas y usadas en el mundo, incluyendo la utilización en Anestesiología. El propósito de esta revisión es discutir algunos aspectos actuales de la bioquímica de la ciclooxigenasis, que viene sirviendo de base para el desenvolvimiento de los nuevos AINE. CONTENIDO: Estas drogas ejercen su acci

  19. Littoral Decapods of Socorro Island, Revillagigedo Archipelago, Mexico

    Directory of Open Access Journals (Sweden)

    Silvia Mille-Pagaza

    2003-03-01

    Full Text Available Decapod community inhabiting the rocky littoral of eight bays from Socorro island, Revillagigedo Archipelago, was studied during March 1992. Samples were collected from one-square meter plots placed following transects drawn perpendicularly to the shoreline along the intertidal zone. Species richness and abundance were determined in each bay, as well as the similarity between bays using Morisita’s index. Organisms collected belong to six families, 20 genera and 26 species of the Brachyura and Anomura infraorders. Xanthidae was the family with the highest number of species, and the highest species richness was recorded at the V. Lozano bay. Pachygrapsus transversus, Xanthodius cooksoni and Calcinus explorator were the most abundant species in nearly all localities. Dendrogram obtained define two groups of bays at a similarity level above 0.67, given the similarity in the crab’s species richness and their abundance between bays in the island.Se estudió la comunidad de cangrejos del litoral rocoso de ocho bahías de la Isla Socorro, Archipiélago Revillagigedo en marzo de 1992. Las muestras fueron colectadas en cuadrantes de un m² a lo largo de transectos perpendiculares a la costa en la zona intermareal. Se determinó la riqueza específica, la abundancia por especie para cada bahía, así como la similitud entre bahías mediante el índice de Morisita. Los organismos colectados pertenecen a seis familias, 20 géneros y 26 especies de los infraordenes Brachyura y Anomura. La familia con el mayor número de especies fue Xanthidae y la mayor riqueza específica se registró en la bahía V. Lozano. Pachygrapsus transversus, Xanthodius cooksoni y Calcinus explorator fueron las más abundantes en casi todas las localidades. En el dendrograma se definen dos agrupaciones con nivel de similitud superior a 0.67, dada la semejanza en la riqueza específica de cangrejos y las abundancias entre las bahías.

  20. La vente des biens nationaux à la fin du XVIIIe siècle, nouvelle donne pour la ville The sale of national assets at the end of the 18th century – a gift to the city

    Directory of Open Access Journals (Sweden)

    François Antoine

    2009-05-01

    Full Text Available À la fin de l’Ancien Régime, les villes des Pays-Bas gardaient les traits de villes médiévales sans ordre et faites d’entrelacs de rues et de ruelles. Le caractère corporatif de la production limitait la présence de grands ensembles industriels et les couvents et leurs jardins occupaient une grande partie de la superficie intra et extra muros des cités. Par ailleurs, l’Église était propriétaire d’un important parc immobilier de petites demeures adossées à des églises jusqu’aux importants refuges d’abbayes dominant dans les campagnes de vastes espaces fonciers. Durant la deuxième moitié du xviiie, les autorités habsbourgeoises menèrent une politique tendant à moderniser les villes en faisant, en autres, tomber les enceintes et en donnant une nouvelle affectation aux couvents contemplatifs supprimés. La Révolution française bouleversa ces ensembles urbains en libérant d’un coup une masse très importante de biens immobiliers qui appartenait à l’Église et en modifiant radicalement les modes de production par la suppression des corporations de métiers. La bourgeoisie principalement négociante réussi habilement tirer tous les profits de cette nouvelle donne. Cet effet d’aubaine contribua grandement à faire passer nos régions dans un nouveau stade de leur démarrage industriel.At the end of the Ancien Régime, the towns of the Netherlands retained the characteristics of medieval towns, without any order and consisting of warrens of streets and alleys. The corporative nature of production limited the presence of major industrial complexes and the monasteries and convents, together with their gardens, covered a large part of the urban areas both within and outside city walls. In addition, the church had important property holdings, ranging from small residential properties attached to churches to major abbey residences dominating vast countryside estates. During the second half of the 18th century, the

  1. Analisis del balance coronal y último nivel artrodesado en escoliosis idiopática lenke 5: parámetros radiográficos específicos

    Directory of Open Access Journals (Sweden)

    Nicolás Siderakis

    2013-12-01

    Full Text Available OBJETIVO: Determinar las modificaciones postoperatorias que se producen en el balance coronal de los pacientes con escoliosis idiopática del adolescente (EIA con curvas de Lenke tipo 5, realizando un análisis pre y postoperatorio de los siguientes parámetros radiológicos: último nivel vertebral artrodesado, inclinación de L4, traslación de vértebra apical, obliquidade lumbosacra, ángulo de Cobb y balance coronal previo. MÉTODOS: Se evaluaron 20 pacientes con diagnóstico de EIA con curvas de Lenke tipo 5, con un seguimiento promedio de 36 meses (R: 24 a 48. La edad promedio al momento de la cirugía fue de 15,3 años (R: 13 a 20 años, siendo la distribución por sexo de 16 mujeres y 4 hombres. RESULTADOS: En nuestra serie hemos detectado una correlación directa entre el AVTL y el LSTOA con el balance coronal postoperatorio, tanto en el grupo de los pacientes que mejoraron (14 pacientes, como en aquellos en los que el balance coronal empeoró (6 pacientes. CONCLUSIÓN: De la serie evaluada, fueron el AVTL y el LSTOA, los parámetros radiográficos específicos.

  2. Le role de l'agriculteur dans la protection écologique de l'espace rural

    Directory of Open Access Journals (Sweden)

    Joseph Hudault

    2015-01-01

    Full Text Available La définition juridique de l'espace rural. Le rôle de l'agriculteur dans l'espace.Juriste parmi les plus prestigieux de l' Amérique latine, pétri de culture humaniste et fidele a la méthode de pensée d'inspiration romaniste dans laquelle la procédure est antérieure au droit et la loi, l'affirmation d'un principe général qu'il appartient a l'interprete de faire application a l'espece (da mihifaetum dabo tibijus, Adolfo GELSI BIDART a été l'un des premiers a mesurer l'influence du droit de l'environnement sur la substance du droit rural.C'est la raison pour laquelle 1'auteur de ces lignes dédie a la mémoire d'un ami regretté et affectionné ces quelques réflexions sur l' espace rural. Une nouvelle fois, il convient d' attirer l'attention des spécialistes du droit rural sur la nécessité de définir 1'espace rural de fa<;on a lui donner un statut juridique.

  3. Consideraciones en torno a los llamados Bastones de Mando

    Directory of Open Access Journals (Sweden)

    Rafael MENÉNDEZ GARCÍA

    2009-12-01

    Full Text Available RESUMEN: Se examinan las características de los bastones prehistóricos, valorando las especulaciones previas sobre su utilidad. Se establece mediante demostración teórica y práctica su uso como elemento esencial de un arma de caza. Específicamente, el bastón se utilizaría como un director a través del cual pasaba la flecha que era impulsada por la lanzadera.ABSTRACT: The study examines the characteristics of prehistoric batons, evaluates some previous speculations on their use and establishes a clear, practical and demonstrable determination of their purpose as an essential element of a hunting weapon. Specifically, the baton was used as a director through which the spear was passed, consequently projected by what has already been established as a spear thrower.RÉSUMÉ: On examine les caractéristiques des batons préhistoriques en évaluant l'état actuel des connaissances sur son usage. On essaie de prouver par la practique et la théorie une nouvelle hypothèse, selon laquelle le baton serait la partie dormente d'une arme et son but celui de diriger la sagaie qui passe par le trou et qui est impulsée par le propulseur.

  4. Inglés con fines específicos: entonces y ahora English for Specific Purposes: A historical perspective

    Directory of Open Access Journals (Sweden)

    Concepción Bueno Velazco

    2002-04-01

    Full Text Available La enseñanza del Inglés con Fines Específicos (IFE ha logrado ocupar un lugar respetable en el campo de la enseñanza del Inglés como lengua extranjera o como segunda lengua. En los momentos actuales resulta familiar para todos los relacionados con esta especialidad el concepto de Inglés para ingenieros, Inglés con fines turísticos, Inglés para empresarios y hombres de negocios, Inglés para médicos, para enfermeros y para estomatólogos. El presente trabajo tiene como objetivo ofrecer una panorámica de la evolución del IFE desde sus inicios. Para ello se ofrecen las condiciones que propiciaron el surgimiento del IFE hasta llegar a su definición partiendo de criterios inicialmente expuestos en la década del 80 hasta los más recientes aportes en este campo.Por último se abordan muy brevemente las tendencias lingüístico- metodológicas por las que ha atravesado el IFE y su situación en la época actualEnglish teaching with Specific Purposes (ESP has been able to reach a respectable place in the field of English teaching as a foreign or second language. Nowadays, it is familiar to those related to this specialty, the concept of English for engineers, English for tourism, English for managers and businessmen, English for doctors, for nurses and dentists. This work's objective is to offer a panorama of the evolution of ESP from its beginnings. To achieve that, the conditions that propitiated the emergence of the ESP are exposed and that analisis goes on until reaching its definition beginning from the approaches initially exposed in the 80s to the most recent contributions in this area. Finally, the current linguistic and methodological trends ESP has gone through and its current situation are presented

  5. O tratamento da distonia tarefa-específica em músicos: aspectos motores e sensoriais envolvidos no processo

    Directory of Open Access Journals (Sweden)

    Rita de Cássia dos Reis Moura

    2016-03-01

    Full Text Available A distonia é uma desordem de ordem neurológica, caracterizada por descontrole dos movimentos ou de posturas ou ambos, por contração intermitente ou de forma sustentada. A distonia do músico é considerada como uma distonia tarefa-específica, que é deflagrada somente durante a performance musical. Pode ocorrer em qualquer parte do corpo; frequentemente face, músculos do pescoço e membros superiores. O conhecimento dessa doença ocupacional entre a população de músicos no Brasil é pouco difundido. O objetivo deste trabalho é discorrer a respeito das estruturas cerebrais envolvidas no processo motor e da fisiologia envolvida na distonia do músico, bem como dos tratamentos disponíveis no intuito de enfatizar a importância de seu reconhecimento e tratamento precoce e apresentar pesquisa realizada com protocolo de tratamento. O método é um levantamento bibliográfico da fisiologia do controle motor, do desenvolvimento e tratamento da distonia do músico utilizando literatura nacional e internacional e aplicação de protocolo de tratamento estruturado. Como resultados, existe já um corpus bibliográfico consistente na língua inglesa, porém escasso em português, principalmente no quesito tratamento, podemos constatar melhora em diversos aspectos de padrão motor após protocolo de tratamento na avaliação após seis meses, tais como relaxamento, aquisição de maior consciência corporal ao tocar, instabilidade, tremor e dissociação de movimentos. Como conclusão, constata-se a necessidade de implementar a discussão e pesquisa nessa área, principalmente com relação aos tratamentos. Por outro lado, sabe-se que a melhor ferramenta contra esta afecção se encontra no tratamento mais precoce possível.

  6. Length-weight relationships for 36 freshwater fish species from two tropical reservoirs: Ayamé I and Buyo, Côte d’Ivoire

    Directory of Open Access Journals (Sweden)

    Leonard Tah

    2012-12-01

    Full Text Available Nowadays, the successful management of small scale fisheries requires the use of biometric data collected in the field, in order to transform them into suitable indicators. The present study describes the lengthweight relationships for 36 freshwater fish species from two tropical reservoirs Ayame I and Buyo, in Côte d’Ivoire. The main objective of the study was to provide a length weight key for a wide range of freshwater fish species from these tropical reservoirs exploited by the inland fisheries. The samplings were carried out at Buyo from July 1997 to August 1998, and from August 2004 to July 2005 in Ayame I. Fish specimens were collected from catches of artisanal fisheries using gill-nets, cast-nets, beach seines and bamboo traps. After landings, samples were identified, total weight for each specimen was recorded to the nearest gram and standard length was measured to the nearest millimetre. A total of 12 724 individuals belonging to 15 families and 24 genera were obtained in this study. The results indicated that the family with the highest number of species was Cichlidae with eight species. Six families were recorded with only one species per family. The value of the exponent b in the length weight relationships (W=aLb ranged from 2.173 for Marcusenius furcidens to 3.472 for Polypterus endlicheri and the median of b was 2.756. The modal value of the exponent b equal to 2.70 indicates that most of the fish species in Ayame I and Buyo Reservoirs have negative allometric growth. The length weight parameters of the three species, Lates niloticus, Synodontis koensis and S. punctifer are described for the first time in these regions. The present length-weight key for 36 freshwater fish species could be used as a valuable tool for fishery managers, in order to improve the inland fisheries statistics largely based on hydropower reservoirs in Côte d’Ivoire.Hoy en día, el manejo exitoso de pesquerías a pequeña escala requiere el uso de

  7. Análisis de límites y alcances de aranceles específicos y ad-valórem. Caso Alby store

    Directory of Open Access Journals (Sweden)

    Stephanie Carolina Tierra Tierra

    2015-06-01

    Full Text Available Esta investigación tiene por objetivo analizar los límites y alcances de los aranceles y específicos ad-valórem aplicados a los importadores del sector textil y de calzado ecuatoriano, mediante el estudio de caso de las tiendas al detal Alby Store. Se compararon y analizaron las ventas en unidades de ropa y calzado, nacionales e importados desde Panamá, Perú, Colombia y Estados Unidos, entre el 2008 y agosto de 2014, con las variaciones de los aranceles aplicados en este rango de tiempo. De esta manera, se determinó que la salvaguardia de $6 por cada par de zapato impuesta en enero de 2009 afectó en mayor grado a las ventas del calzado que las impuestas a la ropa. En consecuencia, el calzado importado sí fue reemplazado casi en su totalidad por el calzado ecuatoriano en los siete años analizados, ya que los nuevos tributos incrementaron en un buen grado el precio de venta al público de la mercancía. En contraste, la ropa importada no se reemplazó por completo ya que la variedad de modelos es más extensa y moderna que la nacional, por lo que continuó siendo adquirida por los clientes de Alby Store y esto se reflejó en la recuperación en ventas desde el 2011. Palabras clave: Economía de la empresa, política pública y regulaciones

  8. ÉTUDE DE CAS — Cuba : L'innovation agricole à Cuba | CRDI ...

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

    5 janv. 2011 ... La recherche de solutions de rechange viables. ... Ces observations résument bien une nouvelle approche et une nouvelle attitude à l'égard de la recherche agricole à Cuba, .... principal au CRDI, et Bob Stanley, rédacteur scientifique. ... voir le site de l'Institut international des ressources phytogénétiques ...

  9. Case Studies on Africa and the Middle East | CRDI - Centre de ...

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

    21 avr. 2016 ... Voir davantageUne nouvelle vision de la transition en Syrie · Ce que nous faisons · Financement · Ressources · À propos du CRDI. Savoir. Innovation. Solutions. Carrières · Communiquez avec nous · Plan du site. Abonnez-vous à notre bulletin pour recevoir les nouvelles du CRDI chaque mois. Abonnez- ...

  10. Une espèce nouvelle du genre Scarabaeus d’Afrique du Nord (Coleoptera : Scarabaeidae, Scarabaeini

    Directory of Open Access Journals (Sweden)

    Khalid BOURAADA

    2015-12-01

    Full Text Available In the context of a dedicated entomological survey mission of mobile sandy formations (dunes, nebkhas ... and fixed by various perennial grasses in eastern Morocco, a newly identified specimen of the genus Scarabaeus of male sex has particularly caught our attention. Indeed, the great family of Scarabaeoidea whose species are mostly attracted to dung feces dominates the dune ecosystems in terms of number of species and individuals. The great taxonomic richness is denoted in Bouârfa region. It is the same for the abundance of which the high values are noted in this desertic station (Bouârfa. The low numbers of beetles in Saïdia region is related to the isolation of this type of dune in the region it is due primarily to the influence of the Mediterranean climate.

  11. Análisis de la influencia de la razón de transmisión en la velocidad específica de deslizamiento // Analysis of the influence of the transmission reason in the specific speed of slip

    Directory of Open Access Journals (Sweden)

    Orestes González-Quintero

    2010-01-01

    Full Text Available ResumenLas transmisiones por engranajes pueden sufrir múltiples deterioros durante su funcionamiento yentre las fallas más comunes, propia de las transmisiones no lubricadas, se encuentra el desgaste,que se caracteriza por la disminución del espesor del diente en la zona de la cabeza y del pie, que esdonde mayor velocidad de deslizamiento existe. En este trabajo se exponen las ecuaciones básicaspara el cálculo de las velocidades de deslizamiento, de desplazamiento y específica dedeslizamiento, finalmente, utilizando un programa elaborado en una Hoja de Cálculo de Excel y conel auxilio del software AutoCAD fueron evaluados cuatro casos de transmisiones por engranajescilíndricos de dientes rectos, para determinar la influencia de la relación de transmisión en lavelocidad específica de deslizamiento en ruedas dentadas cilíndricas de dientes rectos.Palabras claves: Engranajes, velocidad de deslizamiento, velocidad de desplazamiento, velocidadespecífica de deslizamiento, desgaste.________________________________________________________________________AbstractGear transmissions can suffer multiple fails during their operation, being wear one of the mostcommon, this fail is characteristic of the not lubricated transmissions, and it is characterized by thedecrease of the thickness of the tooth up and down the tooth height that is where main slidingvelocity exists. In this work the essential equations for the calculation of the sliding, displacementand specific sliding velocity, are exposed, finally, using a program elaborated in a EXCELspreadsheet and with the employment of the software AutoCAD, four cases of spur geartransmissions were evaluated, to determine the influence of the velocity ratio in the specific slidingvelocity.Key words: Gearing, sliding velocity, displacement velocity, specific sliding velocity, wear

  12. Prevalencia de anticuerpos IgG específicos dirigidos a Mycobacterium avium en caprinos y ovinos en el sur de la Guajira y norte del Cesar

    Directory of Open Access Journals (Sweden)

    María Fernanda Cepeda

    2016-06-01

    Full Text Available Introducción: Los departamentos de la Guajira y Cesar son considerados los principales productores de ovinos y caprinos del país, según censo del Instituto Colombiano Agropecuario (ICA en el año 2015. Estas especies animales revisten interés desde el punto de vista sanitario, no solo por los productos obtenidos de ellos, sino también por la capacidad que tienen de ser reservorio de diferentes agentes infecciosos. A la fecha en Colombia no se encuentran reportes relacionados con la prevalencia de agentes infecciosos, como es el caso de Mycobacterium avium en estas poblaciones animales, razón por la cual, en 2015 se comienza a desarrollar un trabajo inter-institucional titulado: “Proyecto Piloto de Excelencia Sanitaria en Ganadería para la Guajira y el Cesar”, proyecto en el que participan entidades públicas y privadas, el cual, anida el presente trabajo. Objetivo: Determinar la prevalencia de M. avium en caprinos y ovinos, con el propósito de diseñar e implementar un perfil sanitario en los municipios del sur de la Guajira y el Norte del Cesar. Materiales y métodos: El presente trabajo corresponde a un estudio descriptivo de corte transversal, que tuvo como universo de estudio una población de 15.300 ovinos y caprinos del sur de la Guajira y norte del Cesar definida por Censo realizado en 2015 por el ICA. Tomado como base esta población, se calculó un tamaño muestral de 998 individuos mediante la herramienta WinEpi versión 2.0 (Zaragoza, España. La determinación de la prevalencia de M. avium se realizará mediante la determinación de la presencia de IgG sérica específica para este agente infeccioso mediante pruebas comerciales de ELISA indirecta, según las recomendaciones del fabricante. Las pruebas serán realizadas a sueros provenientes de muestras sanguíneas de animales incluidos en la muestra calculada, tomadas por veterinarios entrenados en municipios del sur de la Guajira y norte del Cesar, los cuales, fueron

  13. New vineyard fields: Grape Juice. Selection of grapevine species, juice making, stabilization / Nouvelle filière : jus de raisin. Sélection des cépages, élaboration, stabilisation

    Directory of Open Access Journals (Sweden)

    Escudier Jean-Louis

    2016-01-01

    Full Text Available Proposed by FOULON-SOPAGLY society and INRA, a six years applied research program was developed in France to enable creation of create specific lines to elaborate high quality juice with new adapted grapevine varieties and specialized vineyards, with adapted technology. 448 vine varieties from INRA Vassal first international collection of grapevine species were evaluated to finally select 14: 2 V.vinifera,9 hybrids, and 3 from INRA creation (ref A. Bouquet by hybridization. These last references, obtained from 4 or 5 back crossing between Muscadinia. rotondifolia.X.V.vinifera, have in particular a high level of resistance against mildew and oidium.These varieties have RUN 1 and RPV1. resistance genes, with several other secondary genes on one chromosome locus. This makes access to organic market easier. Agronomic criteria are studied for this selection. Among the 14 selected grapevine species, some have high level of polyphenols (6 times more than alicante. Others (white and red have a high aromatic potential. Others have a low sugar content 135 g/l to 150 g/l and adapted sugar/ acidity ratio. -In the cellar: The absence of fermentation and alcohol requires optimization of the process for juice making. For example by increasing polyphenols extraction and colour stability by using thermo-treatment. Flash release process coupled with enzymatic soaking on grapes at 45°C for example, increases 2 or 3 fold polysaccharide juice content, and increases anthocyanins extraction and hence colour intensity. With this process the draining of grape marc and juice production increase. Pressure technology by on line horizontal decanter is possible. -In juice storehouse. Electro membrane process, (oenodia membrane process with specific membranes gives possibilities to achieve two objectives on juice: - Decrease pH and increase acidity of juice and colour stabilization, without any additive.

  14. Enolasa específica de neurona en dos recién nacidos con depresión ligera al nacer Neuron- specific Enolase in two newborns presenting with moderate depression at birth

    Directory of Open Access Journals (Sweden)

    Raisa Bu-Coifiu Fanego

    2009-03-01

    Full Text Available INTRODUCCIÓN. La enolasa específica de neurona es una isoenzima que se vierte al torrente sanguíneo después de un episodio de daño neuronal. En los procesos de hipoxia neonatal estos valores enzimáticos en suero suelen estar alterados. El objetivo del presente artículo fue estudiar la enolasa específica de neurona en suero de 2 recién nacidos con Apgar bajo y determinar si, en el seguimiento durante un año, dichos pacientes presentaban trastornos del desarrollo psicomotor. MÉTODOS. Se tomaron muestras de suero al momento del nacimiento y a las 72 h siguientes. Se determinaron los niveles de enolasa específica de neurona por un método inmunoenzimático de tipo ELISA. Cada muestra fue evaluada por el método de reacción en cadena de la polimerasa para citomegalovirus, en el Instituto de Inmunología de Wuersburg (Alemania. También se cuantificaron anticuerpos contra citomegalovirus de clase IgM e IgG, en el Laboratorio de Neuroquímica de la Universidad Georg August de Goettingen (Alemania. Se recogieron los datos clínicos de interés de cada recién nacido y al año se citaron a estos pacientes y se les realizó un examen físico para evaluar su neurodesarrollo. RESULTADOS. Las cifras de enolasa estuvieron incrementadas tanto al nacimiento como a las 72 h, con anticuerpos anticitomegalovirus de clase IgG que fueron transferidos de la madre a través de la placenta. No se encontró presencia de este virus en el momento del nacimiento. En el examen físico y neurológico realizado al año se constató que los niños evolucionaban satisfactoriamente hasta esa fecha. CONCLUSIONES. Se recomienda extender el estudio hasta los 3 años de vida y aumentar el número de pacientes estudiados, con énfasis en aquellos casos cuyo Apgar es menor de 5 a los 5 min del nacimiento.INTRODUCTION: Neuron-specific Enolase of is an isoenzyme present in blood stream after a neuronal damage episode. In processes of neonatal hypoxia, these enzymatic values

  15. Endangered Species

    Science.gov (United States)

    EPA's Endangered Species Protection Program helps promote recovery of listed species. The ESPP determines if pesticide use in a geographic area may affect any listed species. Find needed limits on pesticide use in Endangered Species Protection Bulletins.

  16. Declínio de desempenho motor no envelhecimento é específico à tarefa Caída del desempeño motor en el envejecimiento es específico a la tarea Task-specific performance decline in aging

    Directory of Open Access Journals (Sweden)

    Luís Augusto Teixeira

    2006-12-01

    Full Text Available O declínio de desempenho motor característico do envelhecimento tem sido proposto ter como causa um fator único, originário de deterioração da capacidade de processamento central de informação. Por essa proposição, o desempenho motor em diferentes tarefas deveria ser prejudicado similarmente durante o envelhecimento. Para testar essa hipótese, o desempenho sensório-motor de indivíduos fisicamente ativos entre 19 e 73 anos de idade foi estudado em oito tarefas: tempo de reação, tempo de movimento no contato com um alvo, força manual máxima, sincronização, controle de força, toques repetidos com haste vertical, desenhos seqüenciais e toques entre os dedos. A análise dos resultados indicou perfis variáveis de desempenho entre as tarefas motoras na comparação entre as idades, com declínio motor a uma taxa moderada entre 20 e 60 anos para tempo de reação, quedas mais acentuadas de desempenho na transição entre 20 e 40 anos em tarefas requisitando velocidade de execução de movimentos simples ou precisão temporal, quedas mais acentuadas na transição entre 60 e 70 anos para força máxima e habilidade gráfica e manutenção da capacidade de desempenho com o envelhecimento para controle de força manual. Dessa forma, esses resultados revelam-se contraditórios com a hipótese de fator único e oferecem suporte à hipótese alternativa de que a taxa de declínio de desempenho sensório-motor durante o envelhecimento é específica à tarefa.El descenso del desempeño motor, característico del envejecimiento, ha sido propuesto tener como causa un factor único, originario de la deterioración de la capacidad del procesamiento central de información. Por esa proposición, el desempeño motor en diferentes tareas debería ser perjudicado similarmente durante el envejecimiento. Para probar esta hipótesis, el desempeño sensor-motor de individuos físicamente activos entre 19 y 73 años de edad fue estudiado en ocho

  17. Study of new structures adapted to gas-graphite and gas-heavy water reactors; Etude de structures nouvelles adaptees aux reacteurs graphite-gaz et eau lourde-gaz

    Energy Technology Data Exchange (ETDEWEB)

    Martin, R; Roche, R [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1964-07-01

    'EDF d'une part, les conclusions des etudes et essais effectues hors pile d'autre part, conduisent a un changement considerable de la physionomie des reacteurs de la filiere Graphite-Gaz, Les principales modifications envisagees sont analysees dans la communication. L'adoption d'un element combustible annulaire et d'un soufflage descendant permettront d'accroitre considerablement la puissance specifique et la puissance developpee par canal; il en resultera une reduction sensible du nombre des canaux et un accroissement correlatif de la maille du reseau - L'empilement de graphite devra etre adapte a ces nouvelles conditions - Des raisons de securite conduisent a generaliser l'emploi du beton precontraint pour la construction du caisson; elles pourront amener a integrer a l'interieur de celui-ci les echangeurs et l'appareil de manutention du combustible (dispositif dit: 'en grenier'). Une maquette en vraie grandeur de ce grenier a ete construite a Saclay avec la participation d'EURATOM; les resultats d'exploitation en sont presentes, ainsi que des idees de barres de controle de conception nouvelle. En ce qui concerne la filiere Eau-Lourde-Gaz, les etudes sont poursuivies dans deux voies principales; la premiere, qui conserverait l'usage de tubes de force horizontaux, tient compte de l'experience acquise au cours de la construction du reacteur EL4 dont elle constituerait une extrapolation; la seconde, inspiree des etudes poursuivies au titre de la filiere Graphite-Gaz, ferait appel a un caisson en beton precontraint pour tenir la pression, le moderateur etant sensiblement a la pression du fluide refrigerant et le combustible etant dispose dans des canaux verticaux. Les merites respectifs de ces deux variantes sont analyses dans la communication. (auteurs)

  18. Relever le défi d'analyse statistique dans des études en ...

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

    Le CRDI et Cancer Research UK lancent une nouvelle initiative contre le tabagisme. Le CRDI et Cancer Research UK ont le plaisir d'annoncer le lancement d'une nouvelle initiative d'une durée de cinq ans visant la prévention des maladies liées au tabagisme. Voir davantageLe CRDI et Cancer Research UK lancent une ...

  19. Consolidation d'un leadership concernant les démarches écosanté ...

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

    Le CRDI et Cancer Research UK lancent une nouvelle initiative contre le tabagisme. Le CRDI et Cancer Research UK ont le plaisir d'annoncer le lancement d'une nouvelle initiative d'une durée de cinq ans visant la prévention des maladies liées au tabagisme. Voir davantageLe CRDI et Cancer Research UK lancent une ...

  20. Campagne antitabac de la Zambie | CRDI - Centre de recherches ...

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

    Le CRDI et Cancer Research UK lancent une nouvelle initiative contre le tabagisme. Le CRDI et Cancer Research UK ont le plaisir d'annoncer le lancement d'une nouvelle initiative d'une durée de cinq ans visant la prévention des maladies liées au tabagisme. Voir davantageLe CRDI et Cancer Research UK lancent une ...

  1. La evaluación específica del síndrome de Burnout en psicólogos: el "inventario de Burnout de psicólogos"

    Directory of Open Access Journals (Sweden)

    ANA MARIA T. BENEVIDES PEREIRA

    2002-01-01

    Full Text Available La investigación del "burnout" se ha extendido a una amplia variedad de profesiones, asistenciales y no asistenciales, sin embargo el estudio del burnout en psicólogos es relativamente escaso a pesar de ser una profesión con alto riesgo de burnout. El "Inventario de Burnout de Psicólogos" (IBP es un instrumento elaborado específicamente para evaluar los procesos de burnout en los psicólogos que consta de tres partes: características profesionales, dimensiones del burnout y sintomatología de estrés asociada. La aplicación del IBP a una muestra de 203 profesionales de la psicología, de lengua española y brasileña, ha mostrado claramente una estructura factorial de tres factores según el modelo asistencial clásico de burnout: cansancio emocional, despersonalización y falta de realización personal. La sintomatología asociada se factorializa en tres dimensiones: consecuencias psicológicas, físicas y sociales. Las tres partes del IBP están altamente asociadas de forma que las características profesionales se asocian al nivel de burnout y los niveles del burnout a la sintomatología percibida.

  2. The nuclear question: rethinking species importance in multi-species animal groups.

    Science.gov (United States)

    Srinivasan, Umesh; Raza, Rashid Hasnain; Quader, Suhel

    2010-09-01

    1. Animals group for various benefits, and may form either simple single-species groups, or more complex multi-species associations. Multi-species groups are thought to provide anti-predator and foraging benefits to participant individuals. 2. Despite detailed studies on multi-species animal groups, the importance of species in group initiation and maintenance is still rated qualitatively as 'nuclear' (maintaining groups) or 'attendant' (species following nuclear species) based on species-specific traits. This overly simplifies and limits understanding of inherently complex associations, and is biologically unrealistic, because species roles in multi-species groups are: (i) likely to be context-specific and not simply a fixed species property, and (ii) much more variable than this dichotomy indicates. 3. We propose a new view of species importance (measured as number of inter-species associations), along a continuum from 'most nuclear' to 'least nuclear'. Using mixed-species bird flocks from a tropical rainforest in India as an example, we derive inter-species association measures from randomizations on bird species abundance data (which takes into account species 'availability') and data on 86 mixed-species flocks from two different flock types. Our results show that the number and average strength of inter-species associations covary positively, and we argue that species with many, strong associations are the most nuclear. 4. From our data, group size and foraging method are ecological and behavioural traits of species that best explain nuclearity in mixed-species bird flocks. Parallels have been observed in multi-species fish shoals, in which group size and foraging method, as well as diet, have been shown to correlate with nuclearity. Further, the context in which multi-species groups occur, in conjunction with species-specific traits, influences the role played by a species in a multi-species group, and this highlights the importance of extrinsic factors in

  3. Native species that can replace exotic species in landscaping

    Directory of Open Access Journals (Sweden)

    Elisabeth Regina Tempel Stumpf

    2015-08-01

    Full Text Available Beyond aesthetics, the contemporary landscaping intends to provide other benefits for humans and environment, especially related to the environmental quality of urban spaces and conservation of the species. A trend in this direction is the reduction in the use of exotic plants in their designs, since, over time, they can become agents of replacement of native flora, as it has occurred in Rio Grande do Sul with many species introduced by settlers. However, the use of exotic species is unjustifiable, because the flora diversity of the Bioma Pampa offers many native species with appropriate features to the ornamental use. The commercial cultivation and the implantation of native species in landscaped areas constitute innovations for plant nurseries and landscapers and can provide a positive reduction in extractivism, contributing to dissemination, exploitation and preservation of native flora, and also decrease the impact of chemical products on environment. So, this work intends to identify native species of Bioma Pampa with features and uses similar to the most used exotic species at Brazilian landscaping. The species were selected from consulting books about native plants of Bioma Pampa and plants used at Brazilian landscaping, considering the similarity on habit and architecture, as well as characteristics of leafs, flowers and/or fruits and environmental conditions of occurrence and cultivation. There were identified 34 native species able to properly replace exotic species commonly used. The results show that many native species of Bioma Pampa have interesting ornamental features to landscape gardening, allowing them to replace exotic species that are traditionally cultivated.

  4. LA CONVIVENCIA ESCOLAR EN EL INSTITUTO DE EDUCACIÓN SECUNDARIA OBLIGATORIA “MIGUEL ESPINOSA” DE MURCIA. “La convivencia escolar en relación al alumnado con Necesidades Específicas de Apoyo Educativo escolarizado en el Programa de Cualificación Profesional Inicial Especial”

    OpenAIRE

    Alacid-Carrillo, Beatriz

    2014-01-01

    El presente Trabajo Fin de Máster consiste en un estudio que persigue la finalidad de conocer la percepción que tiene la comunidad educativa sobre la convivencia escolar en lo referente al alumnado con necesidades específicas de apoyo educativo escolarizado en un Instituto de Educación Secundaria Obligatoria. Es esencial analizar la convivencia escolar del alumnado con discapacidad escolarizado en dicho centro educativo, ya que nos encontramos con una sociedad heterogénea y diversa, tal y com...

  5. ConSpeciFix: Classifying prokaryotic species based on gene flow.

    Science.gov (United States)

    Bobay, Louis-Marie; Ellis, Brian Shin-Hua; Ochman, Howard

    2018-05-16

    Classification of prokaryotic species is usually based on sequence similarity thresholds, which are easy to apply but lack a biologically-relevant foundation. Here, we present ConSpeciFix, a program that classifies prokaryotes into species using criteria set forth by the Biological Species Concept, thereby unifying species definition in all domains of life. ConSpeciFix's webserver is freely available at www.conspecifix.com. The local version of the program can be freely downloaded from https://github.com/Bobay-Ochman/ConSpeciFix. ConSpeciFix is written in Python 2.7 and requires the following dependencies: Usearch, MCL, MAFFT and RAxML. ljbobay@uncg.edu.

  6. Estimating Effects of Species Interactions on Populations of Endangered Species.

    Science.gov (United States)

    Roth, Tobias; Bühler, Christoph; Amrhein, Valentin

    2016-04-01

    Global change causes community composition to change considerably through time, with ever-new combinations of interacting species. To study the consequences of newly established species interactions, one available source of data could be observational surveys from biodiversity monitoring. However, approaches using observational data would need to account for niche differences between species and for imperfect detection of individuals. To estimate population sizes of interacting species, we extended N-mixture models that were developed to estimate true population sizes in single species. Simulations revealed that our model is able to disentangle direct effects of dominant on subordinate species from indirect effects of dominant species on detection probability of subordinate species. For illustration, we applied our model to data from a Swiss amphibian monitoring program and showed that sizes of expanding water frog populations were negatively related to population sizes of endangered yellow-bellied toads and common midwife toads and partly of natterjack toads. Unlike other studies that analyzed presence and absence of species, our model suggests that the spread of water frogs in Central Europe is one of the reasons for the decline of endangered toad species. Thus, studying population impacts of dominant species on population sizes of endangered species using data from biodiversity monitoring programs should help to inform conservation policy and to decide whether competing species should be subject to population management.

  7. New enigmatic Andean bee species of Protandrena (Hymenoptera, Andrenidae, Panurginae Novas espécies de abelhas andinas do gênero Protandrena (Hymenoptera, Andrenidae, Panurginae

    Directory of Open Access Journals (Sweden)

    Victor H. Gonzalez

    2007-12-01

    Full Text Available Panurgine bees are diverse and abundant in temperate areas of the Americas but poorly represented to nearly absent in the tropics. We describe and illustrate five distinctive new species of the genus Protandrena that occur at high altitudes (2000-3400 m in the Andes, from Venezuela to Ecuador. The species are also described to make the names available in forthcoming papers on their biology. These Andean species resemble some members of the subgenus Heterosarus but differ from it, as well as from any other subgenera of Protandrena, primarily in characters of the male genitalia and hidden sterna. The South American Protandrena s. l. are morphologically highly diverse and a complete study of the group is needed before supraspecific names are proposed for unusual species. Thus, to avoid further nomenclatural changes, we decided not to place these species in a new subgenus or any of the available subgenera. We also provide notes on the biology for some of the species.As espécies de abelhas da subfamília Panurginae nas áreas temperadas das Américas são diversas e abundantes, mas pouco representadas ou até ausentes nos trópicos. São descritas e ilustradas cinco novas espécies do gênero Protandrena que ocorrem em grandes altitudes (2000-3400 m nos Andes, da Venezuela ao Equador. As espécies são descritas para que se tenham nomes válidos em artigos sobre sua biologia. Estas espécies andinas são semelhantes a alguns membros do subgênero Heterosarus, mas diferem dele, assim como do subgênero Protandrena, primariamente pelos caracteres da genitália do macho e pelos esternos ocultos. Protandrena s. l. sulamericanos são morfologicamente muito diversos e um estudo completo do grupo deverá ser feito antes de serem propostos nomes supra-específicos para essas espécies. Portanto, para evitar futuras mudanças na nomenclatura, foi decidido não alocar essas espécies em um novo subgênero ou em qualquer outro. São fornecidas também notas da

  8. Confronting species distribution model predictions with species functional traits.

    Science.gov (United States)

    Wittmann, Marion E; Barnes, Matthew A; Jerde, Christopher L; Jones, Lisa A; Lodge, David M

    2016-02-01

    Species distribution models are valuable tools in studies of biogeography, ecology, and climate change and have been used to inform conservation and ecosystem management. However, species distribution models typically incorporate only climatic variables and species presence data. Model development or validation rarely considers functional components of species traits or other types of biological data. We implemented a species distribution model (Maxent) to predict global climate habitat suitability for Grass Carp (Ctenopharyngodon idella). We then tested the relationship between the degree of climate habitat suitability predicted by Maxent and the individual growth rates of both wild (N = 17) and stocked (N = 51) Grass Carp populations using correlation analysis. The Grass Carp Maxent model accurately reflected the global occurrence data (AUC = 0.904). Observations of Grass Carp growth rate covered six continents and ranged from 0.19 to 20.1 g day(-1). Species distribution model predictions were correlated (r = 0.5, 95% CI (0.03, 0.79)) with observed growth rates for wild Grass Carp populations but were not correlated (r = -0.26, 95% CI (-0.5, 0.012)) with stocked populations. Further, a review of the literature indicates that the few studies for other species that have previously assessed the relationship between the degree of predicted climate habitat suitability and species functional traits have also discovered significant relationships. Thus, species distribution models may provide inferences beyond just where a species may occur, providing a useful tool to understand the linkage between species distributions and underlying biological mechanisms.

  9. Diversity, natural history and conservation of amphibians and reptiles from the San Vito Region, southwestern Costa Rica.

    Science.gov (United States)

    Santos-Barrera, Georgina; Pacheco, Jesus; Mendoza-Quijano, Fernando; Bolaños, Federico; Cháves, Gerardo; Daily, Gretchen C; Ehrlich, Paul R; Ceballos, Gerardo

    2008-06-01

    We present an inventory of the amphibians and reptiles of the San Vito de Coto Brus region, including the Las Cruces Biological Station, in southern Costa Rica, which is the result of a survey of the herpetofauna occurring in mountain forest fragments, pastures, coffee plantations, and other disturbed areas. We found 67 species, included 26 species of amphibians and of 41 of reptiles. We describe the distribution patterns of the community on the basis of the life zones, elevation, fragmentation, and degree of anthropogenic impact. We also provide some nouvelle data on the systematics of some select taxa, their geographical ranges, microhabitats, activity, and other relevant ecological and natural history features. Finally, we comment on the present conservation status of the herpetofauna in the region. Previous literature and collection records indicate a higher number of species occurring in this area, which suggests that some declines have occurred, especially of amphibians, in last decades.

  10. Tirer avantage d'Office 2010, Expression Web et Lync

    CERN Multimedia

    CERN. Geneva

    2012-01-01

    Une attention particulière sera portée sur: Les changements de l'interface utilisateur comparé à Office 2007 et Sharepoint 2007. Les nouvelles fonctionnalités qui améliorent la productivité de l'utilisateur. Le but de cette session et de familiariser les utilisateurs à ces nouvelles versions de logiciels dans le contexte d'une migration vers Windows 7.

  11. Évaluation du nouveau programme d'études du College of Health ...

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

    Ces changements étaient jugés nécessaires pour préparer les professionnels de la santé aux nouvelles exigences de la prestation de services de santé décentralisés, pour juguler les nouvelles pandémies comme celles du VIH/sida et du virus Ébola, ainsi que pour répondre aux besoins des malades dans les zones ...

  12. Fonds canadien de recherche sur la sécurité alimentaire ...

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

    Les projets du FCRSAI génèrent des connaissances et des innovations telles que de nouvelles compétences et de nouveaux outils, des pratiques agricoles améliorées et de nouvelles façons d'accroître la productivité agricole durable, de favoriser les entreprises agroalimentaires dirigées par des jeunes et de diversifier les ...

  13. Primera incursión en la obtención de curieles libre de patógenos específicos en Cuba

    Directory of Open Access Journals (Sweden)

    Bárbara O González Navarro

    2014-01-01

    Full Text Available Título corto: Primera incursión en la obtención de curieles SPF en Cuba Título en ingles: First foray into the production of specific pathogen-free guinea pigs in Cuba Resumen: Resultados confiables y económicos solo son obtenidos cuando los animales de experimentación son aislados de factores ambientales y biológicos, implantándose en el biomodelo una microbiota normal, lejos de la presencia de microorganismos patógenos. El objetivo de la investigación fue obtener curieles libre de patógenos específicos por cesárea aséptica, mantenidos en aisladores y alimentados con dietas estériles. Se realizaron 26 histerectomías. Los animales fueron alimentados con una fórmula modificada (L-477 en forma de papilla hasta los 21 días y permanentemente después la C-484 sólida y granulada, esterilizadas a 121oC/20 minutos o a 1,5Mrad. Además fueron suplementados con vitamina C y B1. El forraje o heno fue consumido a partir de la primera generación. La microbiota gastrointestinal se administró por vía oral en 0,5 ml de una dilución de 10-6/g de contenido de la porción final del íleon, ciego y principio del colon de curieles, a las 24 y 48 horas del nacimiento. Se utilizó para el monitoreo microbiológico caldo Tioglicolato, caldo Triptona Soya y caldo Saboraud incubados aeróbicamente a temperatura de 55, 37y 25oC respectivamente. Se obtuvieron 51 neonatos. La mortalidad más alta se registró entre los primeros 10 días de edad (58,8%. Se lograron 12 animales (3 machos y 9 hembras, 6 de las hembras se reprodujeron aproximadamente a los 9 meses de edad, lográndose 11 crías por parto normal. La metodología aplicada permitió obtener curieles libres de Salmonella sp, Pasteurella sp, Streptococcus del tipo A y C, Bordetella bronchiseptica, Toxoplasma gondii, Virus Sendai y parásitos internos y externos. Palabras clave: curieles, libre de patógenos específicos, aisladores, histerectomía y dietas estériles. Abstract

  14. Desarrollo de un lenguaje de dominio específico para sistemas de gestión de aprendizaje y su herramienta de implementación “KiwiDSM” mediante ingeniería dirigida por modelos

    Directory of Open Access Journals (Sweden)

    Carlos Enrique Montenegro Marín

    2010-09-01

    Full Text Available El artículo presenta la creación de KiwiDSM: herramienta de lenguaje de dominio específico (DSL, que apoyada en ingeniería dirigida por modelos (MDE, permite modelar módulos que conforman un sistema de gestión del aprendizaje (LMS en el área de comunicaciones; esta herramienta es independiente de la plataforma. La validación de la propuesta se realizó desplegando un modelo hecho con KiwiDSM sobre una plataforma LMS particular llamada Atutor. Las pruebas realizadas evidenciaron que al trabajar con MDE se reduce el tiempo y esfuerzo en la creación y despliegue de los módulos modelados sobre Atutor y que el metamodelo planteado es compatible con los requerimientos de dicho LMS.

  15. Species delimitation in the Stenocereus griseus (Cactaceae) species complex reveals a new species, S. huastecorum.

    Science.gov (United States)

    Alvarado-Sizzo, Hernán; Casas, Alejandro; Parra, Fabiola; Arreola-Nava, Hilda Julieta; Terrazas, Teresa; Sánchez, Cristian

    2018-01-01

    The Stenocereus griseus species complex (SGSC) has long been considered taxonomically challenging because the number of taxa belonging to the complex and their geographical boundaries remain poorly understood. Bayesian clustering and genetic distance-based methods were used based on nine microsatellite loci in 377 individuals of three main putative species of the complex. The resulting genetic clusters were assessed for ecological niche divergence and areolar morphology, particularly spination patterns. We based our species boundaries on concordance between genetic, ecological, and morphological data, and were able to resolve four species, three of them corresponding to S. pruinosus from central Mexico, S. laevigatus from southern Mexico, and S. griseus from northern South America. A fourth species, previously considered to be S. griseus and commonly misidentified as S. pruinosus in northern Mexico showed significant genetic, ecological, and morphological differentiation suggesting that it should be considered a new species, S. huastecorum, which we describe here. We show that population genetic analyses, ecological niche modeling, and morphological studies are complementary approaches for delimiting species in taxonomically challenging plant groups such as the SGSC.

  16. Species delimitation in the Stenocereus griseus (Cactaceae species complex reveals a new species, S. huastecorum.

    Directory of Open Access Journals (Sweden)

    Hernán Alvarado-Sizzo

    Full Text Available The Stenocereus griseus species complex (SGSC has long been considered taxonomically challenging because the number of taxa belonging to the complex and their geographical boundaries remain poorly understood. Bayesian clustering and genetic distance-based methods were used based on nine microsatellite loci in 377 individuals of three main putative species of the complex. The resulting genetic clusters were assessed for ecological niche divergence and areolar morphology, particularly spination patterns. We based our species boundaries on concordance between genetic, ecological, and morphological data, and were able to resolve four species, three of them corresponding to S. pruinosus from central Mexico, S. laevigatus from southern Mexico, and S. griseus from northern South America. A fourth species, previously considered to be S. griseus and commonly misidentified as S. pruinosus in northern Mexico showed significant genetic, ecological, and morphological differentiation suggesting that it should be considered a new species, S. huastecorum, which we describe here. We show that population genetic analyses, ecological niche modeling, and morphological studies are complementary approaches for delimiting species in taxonomically challenging plant groups such as the SGSC.

  17. Save Our Species: Protecting Endangered Species from Pesticides.

    Science.gov (United States)

    Environmental Protection Agency, Washington, DC.

    This full-size poster profiles 11 wildlife species that are endangered. Color illustrations of animals and plants are accompanied by narrative describing their habitats and reasons for endangerment. The reverse side of the poster contains information on the Endangered Species Act, why protecting endangered and threatened species is important, how…

  18. Exploración de diferencias de género en los predictores de dominio general y específico de las habilidades matemáticas tempranas

    Directory of Open Access Journals (Sweden)

    Estíbaliz Aragón Mendizábal

    2016-07-01

    Full Text Available El objetivo de este trabajo consistió en el estudio de las diferencias de género en el conocimiento matemático temprano y en sus variables predictoras en 200 alumnos de 5 años de edad. Se evaluaron como variables de dominio general: alfabetización emergente, inteligencia fluida, memoria de trabajo y a corto plazo y funciones ejecutivas. Los contrastes estadísticos no arrojaron diferencias significativas entre niños y niñas. El análisis discriminante no mostró un patrón característico en función del género. Sin embargo, el análisis de regresión lineal por pasos indicó que aunque la alfabetización emergente y la inteligencia fluida explicaron la variación en el conocimiento matemático en niños(as, la tercera variable explicativa fue la memoria a corto plazo para las niñas y la memoria de trabajo en niños. Se concluye que las diferencias de género no fueron estadísticamente significativas en relación a las variables predictoras de dominio general y específico en las habilidades matemáticas tempranas.

  19. Species choice, provenance and species trials among native Brazilian species

    Energy Technology Data Exchange (ETDEWEB)

    Drumond, M A

    1982-01-01

    Six papers from the conference are presented. Drumond, M.A., Potential of species native to the semi-arid tropics, 766-781, (Refs. 18), reports on Anadenanthera macrocarpa, Mimosa species, Schinopsis brasiliensis, Spondias tuberosa, Ziziphus joazeiro, Cnidoscolus phyllacanthus, Bursera leptophleos (leptophloeos), Tabebuia impetiginosa, Astronium urundeuva, and Mimosa caesalpinia. Monteiro, R.F.R., Speltz, R.M., Gurgel, J.T. do A.; Silvicultural performance of 24 provenances of Araucaria angustifolia in Parana, 814-824, (Refs. 8). Pires, C.L. da S., Kalil Filho, A.N., Rosa, P.R.F. da, Parente, P.R., Zanatto, A.C.S.; Provenance trials of Cordia alliodora in the State of Sao Paulo, 988-995, (Refs. 9). Nogueira, J.C.B., Siqueira, A.C.M.F., Garrido, M.A.O., Gurgel Garrido, L.M. do A., Rosa, P.R.F., Moraes, J.L. de, Zandarin, M.A., Gurgel Filho, O.A., Trials of some native species in various regions of the State of Sao Paulo, 1051-1063, (Refs. 9) describes Centrolobium tomentosum, Peltophorum dubium, Tabebuia vellosoi, Cariniana legalis, and Balfourodendron riedelianum. Batista, M.P., Borges, J.F., Franco, M.A.B.; Early growth of a native species in comparison with exotics in northeastern Para, Brazil, 1105-1110, (Refs. 3). Jacaranda copaia is compared with Gmelina arborea, Pinus caribaea various hondurensis, Eucalyptus deglupta, and E. urophylla. Lima, P.C.F., Souza, S.M. de, Drumond, M.A.; Trials of native forest species at Petrolina, Pernambuco, 1139-1148, (Refs. 8), deals with Anadenanthera macrocarpa, Piptadenia obliqua, Pithecellobium foliolosum, Astronium urundeuva, Schinopsis brasiliensis, Cassia excelsa, Caesalpinia pyramidalis, Parkia platycephala, Pseudobombax simplicifolium, Tabebuia impetiginosa, Caesalpinia ferrea, and Aspidosperma pyrifolium. 18 references.

  20. Fatores de risco para a síndrome hipertensiva específica da gravidez - doi:10.5020/18061230.2009.p48

    Directory of Open Access Journals (Sweden)

    Zélia Maria de Sousa Araújo Santos

    2012-01-01

    Full Text Available Objetivo: Identificar os fatores de risco da Síndrome Hipertensiva Específica da Gestação (SHEG em gestantes acompanhadas em núcleo de atenção médica integrada. Método: Estudo exploratório-descritivo realizado com 100 gestantes acompanhadas no ambulatório de pré-natal do Núcleo de Atenção Médica Integrada (NAMI da Universidade de Fortaleza (UNIFOR, em Fortaleza-CE, independentemente de idade, estado civil e renda familiar. Os dados foram coletados por meio de entrevista estruturada, entre março e abril de 2008, organizados em tabelas e analisados com base na literatura pertinente. Resultados: A amostra pesquisada tinha idade entre 17 a 31 anos, cor parda, união estável, renda familiar de 1 a 2 salários mínimos, ensino fundamental; eram prendas do lar, seguiam o catolicismo e habitavam moradia própria. Houve o predomínio da multigestação, da primiparidade e do abortamento na faixa etária de 17 a 21 anos. As gestantes apresentavam os fatores de risco da SHEG - idades extremas; multiparidade; alteração de pressão arterial na gravidez atual e na anterior; história familiar e pregressa de pré-eclâmpsia e eclâmpsia, entre a terceira e quarta gestações; conflitos emocionais e gestação múltipla. Conclusões: Constatou-se a presença de fatores de risco para a SHEG na amostra investigada, exceto a obesidade e a paternidade diversa; entre os dados obstétricos dessas mulheres, predominaram multigestação, primiparidade e abortamento.

  1. Les chercheurs inquiets malgre les promesses de Claudie Haignere

    CERN Multimedia

    2003-01-01

    "Le 9 avril, lors d'un colloque sur l'innovation, la ministre deleguee a la recherche et aux nouvelles technologies a annonce, "en plein accord, dit-elle, avec le premier ministre", que "les etablissements publics a caractere scientifique et technologique (EPST) ne connaitront en 2003 aucune nouvelle annulation de credits de paiement et d'autorisations de programme" et que "les reserves de precaution sont entierement levees" (1 page).

  2. CRDI

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

    et des soins médicaux à l'étranger, et de nombreux Canadiens continuaient ..... de nouvelles variétés adaptées aux besoins des pauvres. C. R. D ..... médecine, par exemple —, qui se penchent, chacune à sa façon, sur ... de cette nouvelle vision, compte tenu de sa structure organi- .... cadre général quinquennal. Tout en ...

  3. Nouvelles: KEK: B pour BELLE; NA48 mesure la violation directe de CP; LEL: le laser à électrons libres dépasse le kilowatt; Le LEP à 100 pour 100; Tour d'honneur au RHIC; Mesures de précision; Etude sur les modes de gestion du village planétaire; Conférence PANIC99 à Uppsala; Rencontre électron-noyau à HERA; LPP, Doubna célèbre une décennie; Les physiciens auscultent le photon; Aimants chauds venus du froid

    CERN Multimedia

    1999-01-01

    Nouvelles: KEK: B pour BELLE; NA48 mesure la violation directe de CP; LEL: le laser à électrons libres dépasse le kilowatt; Le LEP à 100 pour 100; Tour d'honneur au RHIC; Mesures de précision; Etude sur les modes de gestion du village planétaire; Conférence PANIC99 à Uppsala; Rencontre électron-noyau à HERA; LPP, Doubna célèbre une décennie; Les physiciens auscultent le photon; Aimants chauds venus du froid

  4. Terrestrial animals as invasive species and as species at risk from invasions

    Science.gov (United States)

    Deborah M. Finch; Dean Pearson; Joseph Wunderle; Wayne Arendt

    2010-01-01

    Including terrestrial animal species in the invasive species strategy plan is an important step in invasive species management. Invasions by nonindigenous species threaten nearly 50 percent of imperiled native species in the United States and are the Nation's second leading cause of species endangerment. Invasion and conversion of native habitats by exotic species...

  5. Rare species contribute disproportionately to the functional structure of species assemblages.

    Science.gov (United States)

    Leitão, Rafael P; Zuanon, Jansen; Villéger, Sébastien; Williams, Stephen E; Baraloto, Christopher; Fortunel, Claire; Mendonça, Fernando P; Mouillot, David

    2016-04-13

    There is broad consensus that the diversity of functional traits within species assemblages drives several ecological processes. It is also widely recognized that rare species are the first to become extinct following human-induced disturbances. Surprisingly, however, the functional importance of rare species is still poorly understood, particularly in tropical species-rich assemblages where the majority of species are rare, and the rate of species extinction can be high. Here, we investigated the consequences of local and regional extinctions on the functional structure of species assemblages. We used three extensive datasets (stream fish from the Brazilian Amazon, rainforest trees from French Guiana, and birds from the Australian Wet Tropics) and built an integrative measure of species rarity versus commonness, combining local abundance, geographical range, and habitat breadth. Using different scenarios of species loss, we found a disproportionate impact of rare species extinction for the three groups, with significant reductions in levels of functional richness, specialization, and originality of assemblages, which may severely undermine the integrity of ecological processes. The whole breadth of functional abilities within species assemblages, which is disproportionately supported by rare species, is certainly critical in maintaining ecosystems particularly under the ongoing rapid environmental transitions. © 2016 The Author(s).

  6. Trastorno del espectro autista y trastorno específico del lenguaje ¿Dos entidades diferentes o un continuo de manifestaciones neuropsicológicas?

    Directory of Open Access Journals (Sweden)

    Newra Tellechea Rotta

    2013-09-01

    Full Text Available El estudio de los niños con retraso en el desarrollo del lenguaje amerita un gran conocimiento del desarrollo neurológico típico; muchas veces, niños con retraso del lenguaje pueden presentar dificultades sociales y conductuales y puede ser difícil, en especial en etapas tempranas, diferenciar entre trastorno del espectro autista (TEA y trastorno específico del lenguaje (TEL. Justamente por ello, teniendo en cuenta que muchas veces comparten síntomas comunes se ha postulado que estos trastornos podrían tener una base etiológica común. En este trabajo analizaré en base a una revisión de la literatura, los aspectos clínicos, los avances en técnicas de diagnóstico y las investigaciones más recientes en las áreas de los TEA y TEL con el objeto de aclarar aspectos que hagan a su diagnóstico más preciso. No obstante, a pesar de los importantes contribuciones en el área de la observación clínica y de estudios complementarios, quedan todavía muchas dificultades para poder identificar tempranamente a estos niños, en especial antes de los dos años de vida, momento en que aún no podemos definir más que si un niño está en riesgo de padecer autismo o si tiene solo un retraso en el desarrollo de su lenguaje con algunas dificultades sociales.

  7. Expressão eficiente do gene reporter beta-glucuronidase nos tecidos vasculares de batata (Solanum tuberosum L. utilizando de um promotor específico (BRA3 de Agrobacterium rhizogenes Efficient expression of beta-glucuronidase reporter gene in vascular tissue of potato (Solanum tuberosum L. utilizing a specific promoter (BRA3 from Agrobacterium rhizogenes

    Directory of Open Access Journals (Sweden)

    Antonio Carlos Torres

    2003-06-01

    Full Text Available Promotores tecido-específico controlam a transcrição de genes em diferentes tecidos vegetais bem como em diferentes estádios de desenvolvimento da planta, levando à indução de distintos níveis de atividade transiente e/ou estável do gene. Tais promotores podem ser empregados para a expressão seletiva de genes de interesse. O promotor rol A de Agrobacterium rhizogenes, por exemplo, é floema-específico, sugerindo que possa ser empregado em estratégias de defesa de plantas que são infectadas por vírus com replicação restrita ao floema. A expressão do gene marcador da ß-glucuronidase (gus dirigido pelo promotor rol A (pBRA3 foi observada em plantas transgênicas de batata (cvs. Macaca e Baronesa. Entrenós e secções de folhas foram submetidos ao cocultivo com A. tumefaciens. A atividade do gene gus avaliada em brotações resistentes à canamicina não se restringiu ao floema (alto nível de expressão do gene, mas também se manifestou no xilema dos caules. As expressões transiente e estável são, no entanto, tecido-específicas, localizadas sobretudo no sistema vascular de entrenós e ausente em raízes e folhas. As plantas gus positivas foram micropropagadas, plantadas em casa de vegetação e avaliadas por PCR, utilizando-se 'primers' específicos para o gene npt II. Nenhuma alteração fenotípica foi observada em plantas transgênicas, em relação às não transformadas.Tissue-especific promoters allow the modulation of gene transcription in different tissue types as well as in different stages of plant development, leading different levels of transient and stable activity of the gene product. These promoters have been employed for selective gene expression. The Agrobacterium rhizogenes rol A gene promoter (BRA3 controls phloem-specific expression indicating that this promoter might have an important role in plant defense strategies against virus which replicated only in the phloem. The expression of

  8. Core-satellite species hypothesis and native versus exotic species in secondary succession

    Science.gov (United States)

    Martinez, Kelsey A.; Gibson, David J.; Middleton, Beth A.

    2015-01-01

    A number of hypotheses exist to explain species’ distributions in a landscape, but these hypotheses are not frequently utilized to explain the differences in native and exotic species distributions. The core-satellite species (CSS) hypothesis predicts species occupancy will be bimodally distributed, i.e., many species will be common and many species will be rare, but does not explicitly consider exotic species distributions. The parallel dynamics (PD) hypothesis predicts that regional occurrence patterns of exotic species will be similar to native species. Together, the CSS and PD hypotheses may increase our understanding of exotic species’ distribution relative to natives. We selected an old field undergoing secondary succession to study the CSS and PD hypotheses in conjunction with each other. The ratio of exotic to native species (richness and abundance) was observed through 17 years of secondary succession. We predicted species would be bimodally distributed and that exotic:native species ratios would remain steady or decrease through time under frequent disturbance. In contrast to the CSS and PD hypotheses, native species occupancies were not bimodally distributed at the site, but exotic species were. The exotic:native species ratios for both richness (E:Nrichness) and abundance (E:Ncover) generally decreased or remained constant throughout supporting the PD hypothesis. Our results suggest exotic species exhibit metapopulation structure in old field landscapes, but that metapopulation structures of native species are disrupted, perhaps because these species are dispersal limited in the fragmented landscape.

  9. Two-species occupancy modeling accounting for species misidentification and nondetection

    Science.gov (United States)

    Chambert, Thierry; Grant, Evan H. Campbell; Miller, David A. W.; Nichols, James; Mulder, Kevin P.; Brand, Adrianne B,

    2018-01-01

    1. In occupancy studies, species misidentification can lead to false positive detections, which can cause severe estimator biases. Currently, all models that account for false positive errors only consider omnibus sources of false detections and are limited to single species occupancy. 2. However, false detections for a given species often occur because of the misidentification with another, closely-related species. To exploit this explicit source of false positive detection error, we develop a two-species occupancy model that accounts for misidentifications between two species of interest. As with other false positive models, identifiability is greatly improved by the availability of unambiguous detections at a subset of site-occasions. Here, we consider the case where some of the field observations can be confirmed using laboratory or other independent identification methods (“confirmatory data”). 3. We performed three simulation studies to (1) assess the model’s performance under various realistic scenarios, (2) investigate the influence of the proportion of confirmatory data on estimator accuracy, and (3) compare the performance of this two-species model with that of the single-species false positive model. The model shows good performance under all scenarios, even when only small proportions of detections are confirmed (e.g., 5%). It also clearly outperforms the single-species model.

  10. Incorporating Context Dependency of Species Interactions in Species Distribution Models.

    Science.gov (United States)

    Lany, Nina K; Zarnetske, Phoebe L; Gouhier, Tarik C; Menge, Bruce A

    2017-07-01

    Species distribution models typically use correlative approaches that characterize the species-environment relationship using occurrence or abundance data for a single species. However, species distributions are determined by both abiotic conditions and biotic interactions with other species in the community. Therefore, climate change is expected to impact species through direct effects on their physiology and indirect effects propagated through their resources, predators, competitors, or mutualists. Furthermore, the sign and strength of species interactions can change according to abiotic conditions, resulting in context-dependent species interactions that may change across space or with climate change. Here, we incorporated the context dependency of species interactions into a dynamic species distribution model. We developed a multi-species model that uses a time-series of observational survey data to evaluate how abiotic conditions and species interactions affect the dynamics of three rocky intertidal species. The model further distinguishes between the direct effects of abiotic conditions on abundance and the indirect effects propagated through interactions with other species. We apply the model to keystone predation by the sea star Pisaster ochraceus on the mussel Mytilus californianus and the barnacle Balanus glandula in the rocky intertidal zone of the Pacific coast, USA. Our method indicated that biotic interactions between P. ochraceus and B. glandula affected B. glandula dynamics across >1000 km of coastline. Consistent with patterns from keystone predation, the growth rate of B. glandula varied according to the abundance of P. ochraceus in the previous year. The data and the model did not indicate that the strength of keystone predation by P. ochraceus varied with a mean annual upwelling index. Balanus glandula cover increased following years with high phytoplankton abundance measured as mean annual chlorophyll-a. M. californianus exhibited the same

  11. Prevalência da doença hipertensiva específica da gestação em hospital público de São Paulo Prevalencia de la enfermedad hipertensiva específica de la gestación em hospital publico de São Paulo Prevalence of specific hypertension diseasen in pregnancy in a public hospital of the city of São Paulo

    Directory of Open Access Journals (Sweden)

    Roselane Gonçalves

    2005-02-01

    Full Text Available Pesquisa descritiva-exploratória, realizada de janeiro a julho de 2002, com o objetivo de conhecer a prevalência da Doença Hipertensiva Específica da Gestação (DHEG e suas complicações. Foram analisados retrospectivamente 604 prontuários de mulheres internadas e identificados 22, nos quais o diagnóstico médico foi DHEG, ou seja, 3,64% mulheres tiveram esse diagnóstico. Delas 45,45% eram adolescentes e 40,90% primigestas. Em 86,36% a patologia ocorreu após a 20ª. semana de gestação. Como complicações identificou-se a eclampsia, a crise hipertensiva, o óbito fetal intrauterino, o óbito neonatal, o sofrimento fetal crônico e a prematuridade. Conclui-se que a assistência à saúde perinatal prestada às gestantes da região deve ser revista, sobretudo, a das adolescente com vistas em melhores indicadores de saúde perinatal.Pesquisa descriptiva-exploratoria realizada de enero a julio de 2002, con el objetivo de conocer la prevalencia de la Enfermedad Hipertensiva Específica de la Gestación (EHEG y sus complicaciones. Fueron analizados retrospectivamente 604 prontuarios de mujeres internadas e identificados 22 de los cuales el diagnóstico médico fue la EHEG, o sea, 3.64% mujeres tuvieron este diagnóstico. Entre estas, 45.45% eran adolescentes y 40.90% eran primigestas. En 86.36% la patología ocurrió después de la 20 semana de gestación. Como complicaciones se identificó la eclampsia, la crisis hipertensiva, el óbito fetal intrauterino, el óbito neonatal, el sufrimiento fetal crónico y la prematuridad. Concluyese que la asistencia a la salud prenatal prestada a las mujeres embarazadas de la región debe ser revista, sobretodo las adolescentes, con vistas para obtener mejores indicadores de salud perinatal.This is a descriptive-exploratory study carried out from January to July 2002 with the purpose to know the prevalence of Specific Hypertension Disease in pregnancy (SHD and its disorders. A total of 604 records of

  12. Agroforestry Species Switchboard

    DEFF Research Database (Denmark)

    Kindt, R.; John, I.; Ordonez, J.

    2016-01-01

    The current version of the Agroforestry Species Switchboard documents the presence of a total of 26,135 plant species (33,813 species including synonyms) across 19 web-based databases. When available, hyperlinks to information on the selected species in particular databases are provided. In total...

  13. Ring species as demonstrations of the continuum of species formation

    DEFF Research Database (Denmark)

    Pereira, Ricardo José Do Nascimento; Wake, David B.

    2015-01-01

    In the mid-20th century, Ernst Mayr (1942) and Theodosius Dobzhansky (1958) championed the significance of 'circular overlaps' or 'ring species' as the perfect demonstration of the gradual nature of species formation. As an ancestral species expands its range, wrapping around a geographic barrier......? What conditions favour their formation? Modelling studies have attempted to address these knowledge gaps by estimating the biological parameters that result in stable ring species (Martins et al. 2013), and determining the necessary topographic parameters of the barriers encircled (Monahan et al. 2012......). However, any generalization is undermined by a major limitation: only a handful of ring species are known to exist in nature. In addition, many of them have been broken into multiple species presumed to be evolving independently, usually obscuring the evolutionary dynamics that generate diversity. A paper...

  14. Neuroimaging in specific phobia disorder: a systematic review of the literature Neuroimagem do transtorno de fobia específica: uma revisão sistemática da literatura

    Directory of Open Access Journals (Sweden)

    Ila M.P Linares

    2012-03-01

    Full Text Available OBJECTIVE: Specific phobia (SP is characterized by irrational fear associated with avoidance of specific stimuli. In recent years, neuroimaging techniques have been used in an attempt to better understand the neurobiology of anxiety disorders. The objective of this study was to perform a systematic review of articles that used neuroimaging techniques to study SP. METHOD:A literature search was conducted through electronic databases, using the keywords: imaging, neuroimaging, PET, spectroscopy, functional magnetic resonance, structural magnetic resonance, SPECT, MRI, DTI, and tractography, combined with simple phobia and specific phobia. One-hundred fifteen articles were found, of which 38 were selected for the present review. From these, 24 used fMRI, 11 used PET, 1 used SPECT, 2 used structural MRI, and none used spectroscopy. RESULT: The search showed that studies in this area were published recently and that the neuroanatomic substrate of SP has not yet been consolidated. CONCLUSION: In spite of methodological differences among studies, results converge to a greater activation in the insula, anterior cingulate cortex, amygdala, and prefrontal and orbitofrontal cortex of patients exposed to phobia-related situations compared to controls. These findings support the hypotheses of the hyperactivation of a neuroanatomic structural network involved in SP.A Fobia Específica (SP do inglês é caracterizada por medos irracionais associados à evitação de estímulos específicos. Nos últimos anos, técnicas de neuroimagem vêm sendo empregadas na tentativa de melhor compreender a neurobiologia dos transtornos de ansiedade. O objetivo do presente estudo é realizar uma revisão sistemática dos artigos que utilizaram neuroimagem para estudar a SP. A busca na literatura foi realizada por intermédio de indexadores eletrônicos, utilizando-se as palavras-chave: imaging, neuroimaging, PET, spectroscopy, functional magnetic ressonance, structural

  15. Honey physicochemical properties of three species of the brazilian Melipona

    Directory of Open Access Journals (Sweden)

    Lorena G.A. Lage

    2012-09-01

    Full Text Available Physicochemical analyses were carried out to evaluate 27 samples of honeys from three species of the Brazilian genus Melipona (M. capixaba, M. rufiventris and M. mondury from Espírito Santo and Minas Gerais States. The parameters water activity (Aw, percentage of soluble solids (Brix %, pH, acidity (meq/Kg and moisture (% were evaluated. The honey characteristics obtained from these samples were very similar to the ones from other Melipona species. However, regarding the honey from Apis (honey bee, only the pH values were similar. The low pH value and the high acidity detected in Melipona honey are potential factors for increasing the honey shelf life because they do not provide favorable conditions for the microbial development. On the other hand, the high level of water activity favors the growth of microorganisms, especially yeast, which demands a more careful handled and storage. The observed differences between Melipona and Apis honey reinforce the need for specific quality settings for stingless bee honey.Análises fisico-quimicas foram realizadas para avaliar vinte e sete amostras de mel de três espécies do gênero Melipona (M. capixaba, M. rufiventris e M. mondury coletadas nos Estados do Espírito Santo e de Minas Gerais. Os parâmetros atividade de água (aW, porcentagem de sólidos solúveis (Brix %, pH, acidez (meq.Kg-1 e umidade (% foram avaliados. As características do mel dessas amostras foram muito similares às do mel de outras espécies de Melipona. Entretanto, para o mel de Apis apenas os valores de pH foram similares. O baixo valor de pH e a elevada acidez detectados no mel de Melipona são fatores potenciais para uma maior vida útil do mesmo por não oferecerem condições favoráveis ao desenvolvimento microbiano. Por outro lado, o alto teor de atividade de água favorece o crescimento de microrganismos, especialmente de leveduras o que requer maior cuidado no manuseio e armazenamento do mel. As diferenças observadas

  16. Flesh flies species (Diptera: Sarcophagidae from a grassland and a woodland in a Nature Reserve of Buenos Aires, Argentina

    Directory of Open Access Journals (Sweden)

    Pablo R Mulieri

    2008-09-01

    Full Text Available Temporal changes of flesh flies abundance were simultaneously recorded at monthly intervals during a year in a woodland and in a grassland at the "Reserva Ecológica Costanera Sur" (RECS, Buenos Aires city, Argentina. Samples were taken at monthly intervals (February 2004-January 2005. Hourly captures of adult flies (10:00 am - 04:00 pm were taken each sampling date with a hand net. Temperature was recorded at each hourly capture. The baits used were 200 g of rotten cow liver and 200 g of fresh dog faeces. Records of abundance included only species whose abundance was ≥30 individuals accumulated during the whole sampling period. Considering overall abundance, a non-parametric Chi-square test was used to estimate deviations of an expected habitat and bait preference ratios of 1:1. The same criterion was applied to include species in a contingency table to describe their seasonality. The final matrix included four species whose associations to seasons were analyzed by using a Correspondence Analysis. To normalize the data, a log 10(n+1 transformation was applied prior to the analysis of correlation. Pearson product-moment correlations were used to examine the relationship between flesh-fly abundance with temperature and habitat preference. The entire sample accumulated 1 305 individuals and 18 species. The flies were more abundant in the grassland than in the woodland. Microcerella muehni, Oxysarcodexia paulistanensis, O. varia and Tricharaea (Sarcophagula occidua exhibited the higher relative abundance, representing the remaining species less than 8 % of the entire sample. Most of the recorded species showed preference for faces as bait. Concerning the dominant species, all of them but M. muehni, a suggestively termophobic species, prevailed in late spring-summer. The observed species arrangement at both sites indicates low species diversity and equitability and high information per individual in the average. The referred community traits would

  17. Université de Genève - Planètes extra-solaires: des propriétés inattendues des planètes géantes à la chasse à une nouvelle Terre - French version only

    CERN Multimedia

    2006-01-01

    Université de Genève Ecole de physique 24 quai Ernest Ansermet1211 Genève 4Tél : +41 22 379 6383 (secrétariat)Tél : +41 22 379 6256 (réception) Fax: +41 22 379 6922 Lundi 30 octobre 2006 COLLOQUE 17h00 - Auditoire Stueckelberg Planètes extra-solaires: des propriétés inattendues des planètes géantes à la chasse à une nouvelle Terre Dr S. Udry / Observatoire de Genève, Sauverny Depuis la détection de la première 'exoplanète' en orbite autour d'une étoile semblable à notre soleil, il y a un peu plus de 10 ans, près de 200 candidats planétaires ont été mis à jour, la plupart par spectroscopie Doppler. Les propriétés variées et inattendues de ces systèmes seront discutées ainsi que les contraintes qu'elles fournissent pour les modèles de formation planétaire. Si les planètes découvertes sont pour la plupart des géantes gazeuses ressemblant à Jupiter, un nouveau pas a été récemment franchi avec la détection de planètes plus légères (10-20 masses terrestres) et probabl...

  18. Indicator species of essential forest tree species in the Burdur district.

    Science.gov (United States)

    Negiz, Mehmet Güvenç; Eser, Yunus; Kuzugüdenll, Emre; Izkan, Kürşad

    2015-01-01

    The forests of Burdur district for long have been subjected to over grazing and individual selection. As a result of this, majority of the forest areas in the district were degraded. In the district, afforestation efforts included majority of forestry implementations. It is well known that selecting suitable species plays an important role for achieving afforestation efforts. In this context, knowing the indicator species among the target species would be used in afforestation efforts, studies on the interrelationships between environmental factors and target species distribution is vital for selecting suitable species for a given area. In this study, Anatolian Black pine (Pinus nigra), Red pine (Pinus brutia), Crimean juniper (Juniperus excelsa) and Taurus cedar (Cedrus libani), essential tree species, were considered as target species. The data taken from 100 sample plots in Burdur district was used. Interspecific correlation analysis was performed to determine the positive and negative indicator species among each of the target species. As a result of ICA, 2 positive (Berberis crataegina, Juniperus oxycedrus), 2 negative (Phillyrea latifolia, Quercus coccifera) for Crimean Juniper, I positive (Juniperus oxycedrus), 3 negative (Onopordium acanthium, Fraxinus ornus, Phillyrea latifolia) for Anatolian black pine, 3 positive (Paliurus spina-christi, Quercus coccifer, Crataegus orientalis), 2 negative (Berberis crataegina, Astragalus nanus) for Red pine and 3 positive (Berberis crataegina, Rhamnus oleoides, Astragalus prusianus) 2 negative (Paliurus spina-christi, Quercus cerris) for Taurus cedarwere defined as indicator plant species. In this way, practical information was obtained for selecting the most suitable species, among the target species, for afforestation efforts in Burdur district.

  19. Species concept and speciation

    Directory of Open Access Journals (Sweden)

    Amal Y. Aldhebiani

    2018-03-01

    Full Text Available Defining and recognizing a species has been a controversial issue for a long time. To determine the variation and the limitation between species, many concepts have been proposed. When a taxonomist study a particular taxa, he/she must adopted a species concept and provide a species limitation to define this taxa. In this paper some of species concepts are discussed starting from the typological species concepts to the phylogenetic concept. Positive and negative aspects of these concepts are represented in addition to their application. Keywords: Species concept, Species limitation, Species, Taxonomy, Classification

  20. Pneumonite intersticial não específica: entidade clínico-patológica, padrão histológico ou apenas grupo heterogéneo de pneumonites intersticiais não classificadas?

    Directory of Open Access Journals (Sweden)

    António Morais

    2004-07-01

    Full Text Available RESUMO: A pneumonite intersticial não específica (NSIP, descrita pela primeira vez em 1994 por Katzenstein e Fiorelli, apresenta-se como uma eventual entidade clínico-patológica individualizável dentro do grupo das pneumonites intersticiais idiopáticas (IIP. Aliada a alterações histológicas distintas, apresentauma evolução clínica mais favorável, com consequente melhor prognóstico do que a fibrose pulmonar idiopática (IPF, grupo onde geralmente estas alterações eram incluídas. Estas diferenças levam a que, apesar das dúvidas que ainda envolvem a NSIP, o seu reconhecimento seja importante, uma vez que as atitudes clínicas e terapêuticas se diferenciam da IPF. A NSIP engloba padrões histológicos diferentes, dividindo-se nomeadamente em casos de predomínio inflamatório (tipo celular ou de predomínio fibroso (tipo fibrosante, com os últimos a evidenciarem uma maior gravidade e pior prognóstico do que os primeiros. Os autores descrevem dois casos de NSIP, seguidos de uma revisão e discussão do tema.REV PORT PNEUMOL 2004; X (4: 331-345 ABSTRACT: Nonspecific interstitial pneumonitis (NSIP initially described by Katzenstein and Fiorelli in 1994, seems to be a distinct clinicopathologic entity among idiopathic interstitial pneumonitis (IIP. Besides different histologic features from other IIP, NSIP is characterized by a better long-term outcome, associated with a better steroids responsiveness than idiopathic pulmonar fibrosis (IPF, where usually were included. Thus, differentiating NSIP from other IIP, namely IPF is very significant, since it has important therapeutic and prognostic implications. NSIP encloses different pathologies, namely those with inflammatory predominance (cellular subtype or fibrous predominance (fibrosing subtype. NSIP is reviewed and discussed by the authors, after two clinical cases description.REV PORT PNEUMOL 2004; X (4: 331-345 Palavras chave: pneumonites intersticiais idiopáticas, pneumonite

  1. Produtividade de madeira do eucalipto correlacionada com atributos do solo visando ao mapeamento de zonas específicas de manejo Eucalyptus wood productivity correlated with soil attributes aiming the mapping of management specifics regions

    Directory of Open Access Journals (Sweden)

    Morel de Passos e Carvalho

    2012-10-01

    Full Text Available A correta intervenção espacial na administração da lavoura, decorrente das zonas específicas de manejo do solo, aumenta a produtividade e a lucratividade agrícola. No ano de 2010, em Selvíria, Mato Grosso do Sul, Brasil (20° 20' S lat.; 51° 24' W long. foram empregadas correlações, espaciais e de Pearson, entre dados da planta de eucalipto e alguns atributos físico-químicos do solo, visando encontrar aquele que se correlacionasse bem com a produtividade de madeira. Para tanto, instalou-se uma rede geoestatística para a coleta de dados de solo e planta, com 120 pontos amostrais, num talhão de Eucalyptus camaldulensis de 2 anos. O solo foi um Latossolo Vermelho distrófico (Haplic Acrustox com declive de 0,025m m-1. O diâmetro basal da copa e a densidade do solo, por resultarem estreitas correlações com o volume de madeira, evidenciaram zonas específicas de manejo do solo intimamente associadas à produção de madeira do eucalipto.The perfect spatial intervention to manage the cultivation of the land, deriving from specific regions of the soil mapping, increases the agricultural productivity, as well as its clear gain. The relationships, spatial and Pearson, between eucalyptus data plant with some physical and chemical attributes of soil, in the growing season of 2011, in Selviria County, Mato Grosso do Sul State, Brazil (20° 20' S lat.; 51° 24' W long., were studied in order to obtain the one that could have the best relationship in order to improve the wood productivity. Thus, a geostatistical grid was installed for the soil and plant data collection, it contained 120 sample points, in plantation of Eucalyptus camaldulensis of 2 years old. The soil was a Dystrophic Red Latosol (Haplic Acrustox whit slope of 0.025m m-1. Due to their excellent relationship with wood productivity, the basis diameter of the crown and the bulk density showed management specific regions of soil whit high relation to eucalyptus wood productivity.

  2. La competencia informacional en la enseñanza obligatoria a partir de la articulación de un modelo específico

    Directory of Open Access Journals (Sweden)

    Blasco Olivares, Anna

    2012-07-01

    Full Text Available A three-phased model is proposed for addressing information competence in the context of compulsory education. The 3 basic phases are information searching, management and communication. A study of the current standard curriculum identified the objectives and content corresponding to the three phases, with the aim of assisting centres in establishing programs for each educational stage. The goal is to help improve the design of research projects that are carried out in the classroom as well as to develop information literacy using the school library. The text points to areas in which the school library can play an important role in supporting the curriculum for skills development.

    Se propone una articulación curricular de la competencia informacional (o ALFIN en el contexto escolar de la Enseñanza Obligatoria a partir de un modelo específico centrado en las tres fases básicas que constituyen la esencia de esta competencia: la búsqueda, el tratamiento y la comunicación de la información. Se ha analizado en profundidad el currículum normativo actual y se han identificado objetivos y contenidos correspondientes a cada fase con el objetivo de facilitar a los centros la concreción de programaciones para cada etapa educativa. Se pretende con ello ayudar a mejorar el diseño de los proyectos de investigación que se realizan en las aulas, así como desarrollar de forma sistémica la competencia informacional en el centro educativo con la contribución de la biblioteca escolar. Se señalan aquellos aspectos principales en los que la biblioteca escolar puede aportar una función de apoyo curricular de gran importancia al desarrollo de las habilidades.

  3. Interfon

    CERN Multimedia

    Interfon

    2012-01-01

    Une nouvelle année commence … En ce début de nouvelle année Interfon s’engage à continuer sa mission de service  afin de vous faire profiter des avantages que nos partenaires consentent tout spécialement à nos adhérents. L’année qui s’est achevée aura été une année  difficile sur le plan financier. La concurrence est rude, nos sociétaires ne nous sont pas toujours fidèles, mais nous restons à leur écoute et sommes toujours à la recherche de nouveaux services. Ne voulant pas nous laisser envahir par la morosité environnante, nous sommes déjà dans des perspectives nouvelles et notamment, très bientôt, par la mise en place d’un nouveau Site internet plus attractif, facilité par une arboresc...

  4. Species-area relationships are controlled by species traits.

    Science.gov (United States)

    Franzén, Markus; Schweiger, Oliver; Betzholtz, Per-Eric

    2012-01-01

    The species-area relationship (SAR) is one of the most thoroughly investigated empirical relationships in ecology. Two theories have been proposed to explain SARs: classical island biogeography theory and niche theory. Classical island biogeography theory considers the processes of persistence, extinction, and colonization, whereas niche theory focuses on species requirements, such as habitat and resource use. Recent studies have called for the unification of these two theories to better explain the underlying mechanisms that generates SARs. In this context, species traits that can be related to each theory seem promising. Here we analyzed the SARs of butterfly and moth assemblages on islands differing in size and isolation. We tested whether species traits modify the SAR and the response to isolation. In addition to the expected overall effects on the area, traits related to each of the two theories increased the model fit, from 69% up to 90%. Steeper slopes have been shown to have a particularly higher sensitivity to area, which was indicated by species with restricted range (slope = 0.82), narrow dietary niche (slope= 0.59), low abundance (slope= 0.52), and low reproductive potential (slope = 0.51). We concluded that considering species traits by analyzing SARs yields considerable potential for unifying island biogeography theory and niche theory, and that the systematic and predictable effects observed when considering traits can help to guide conservation and management actions.

  5. Valor del tacto rectal y el antígeno prostático específico en el pesquisaje del adenocarcinoma de próstata

    Directory of Open Access Journals (Sweden)

    Odalys Sandoval Jiménez

    2002-12-01

    Full Text Available Se realizó un estudio para valorar la utilidad del pesquisaje en el diagnóstico del adenocarcinoma de próstata, en 5 consultorios del médico de la familia, en el municipio Plaza de la Revolución, en el período de 1998 al 2000. El universo del estudio estuvo constituido por 97 varones, todos mayores de 50 años y supuestamente sanos. A todos los pacientes se les realizó una dosificación de antígeno prostático específico (PSA total y luego tacto rectal. En los casos cuando apareció alguna alteración o signo de sospecha de posible desarrollo de células malignas, se les practicó un mapeo citológico de la glándula prostática a través de la biopsia con aguja fina. Se constató en el estudio que el tacto rectal es un examen que mantiene utilidad para el diagnóstico del adenocarcinoma de próstata, y presentó en la investigación una positividad del 15 %. El PSA total se mostró alterado en 6 casos, y fue positivo de células malignas en los 3 pacientes cuando su valor era superior a 10 ng/mL. Aunque la muestra no fue selectiva, es de señalar la alta incidencia de adenocarcinoma de próstata (4,1 % que aparece en esta investigación

  6. Synopsis of the Oxyethira flavicornis species group with new Japanese Oxyethira species (Trichoptera, Hydroptilidae

    Directory of Open Access Journals (Sweden)

    Oláh, J.

    2013-06-01

    Full Text Available A brief synopsis of the Oxyethira flavicornis species group is produced by the examination of type materials. Diagrammatic drawings with similar style were prepared for all the known and for the new species. Short description of genus Oxyethira, subgenus Oxyethira, species group of Oxyethira flavicornis are presented together with the description of five species clusters: O. datra new species cluster, O. ecornuta new species cluster, O. flavicornis new species cluster, O. hiroshima new species cluster, O. tiunovae new species cluster. Five new species are described from the O. flavicornis species group: O chitosea sp. n., O. hena sp. n., O. hiroshima sp. n., O. kakida sp. n., O. mekunna sp. n. One new species is described from the Oxyethira grisea species group: Oxyethira ozea sp. n. and two new species from the Oxyethira ramosa species group: Oxyethira miea sp. n., Oxyethira okinawa sp. n.

  7. Relating species abundance distributions to species-area curves in two Mediterranean-type shrublands

    Science.gov (United States)

    Keeley, Jon E.

    2003-01-01

    Based on both theoretical and empirical studies there is evidence that different species abundance distributions underlie different species-area relationships. Here I show that Australian and Californian shrubland communities (at the scale from 1 to 1000 m2) exhibit different species-area relationships and different species abundance patterns. The species-area relationship in Australian heathlands best fits an exponential model and species abundance (based on both density and cover) follows a narrow log normal distribution. In contrast, the species-area relationship in Californian shrublands is best fit with the power model and, although species abundance appears to fit a log normal distribution, the distribution is much broader than in Australian heathlands. I hypothesize that the primary driver of these differences is the abundance of small-stature annual species in California and the lack of annuals in Australian heathlands. Species-area is best fit by an exponential model in Australian heathlands because the bulk of the species are common and thus the species-area curves initially rise rapidly between 1 and 100 m2. Annuals in Californian shrublands generate very broad species abundance distributions with many uncommon or rare species. The power function is a better model in these communities because richness increases slowly from 1 to 100 m2 but more rapidly between 100 and 1000 m2due to the abundance of rare or uncommon species that are more likely to be encountered at coarser spatial scales. The implications of this study are that both the exponential and power function models are legitimate representations of species-area relationships in different plant communities. Also, structural differences in community organization, arising from different species abundance distributions, may lead to different species-area curves, and this may be tied to patterns of life form distribution.

  8. Use of species-specific PCR for the identification of 10 sea cucumber species

    Science.gov (United States)

    Wen, Jing; Zeng, Ling

    2014-11-01

    We developed a species-specific PCR method to identify species among dehydrated products of 10 sea cucumber species. Ten reverse species-specific primers designed from the 16S rRNA gene, in combination with one forward universal primer, generated PCR fragments of ca. 270 bp length for each species. The specificity of the PCR assay was tested with DNA of samples of 21 sea cucumber species. Amplification was observed in specific species only. The species-specific PCR method we developed was successfully applied to authenticate species of commercial products of dehydrated sea cucumber, and was proven to be a useful, rapid, and low-cost technique to identify the origin of the sea cucumber product.

  9. Diversity of cuticular wax among Salix species and Populus species hybrids.

    Science.gov (United States)

    Cameron, Kimberly D; Teece, Mark A; Bevilacqua, Eddie; Smart, Lawrence B

    2002-08-01

    The leaf cuticular waxes of three Salix species and two Populus species hybrids, selected for their ability to produce high amounts of biomass, were characterized. Samples were extracted in CH(2)Cl(2) three times over the growing season. Low kV SEM was utilized to observe differences in the ultrastructure of leaf surfaces from each clone. Homologous series of wax components were classified into organic groups, and the variation in wax components due to clone, sample time, and their interaction was identified. All Salix species and Populus species hybrids showed differences in total wax load at each sampling period, whereas the pattern of wax deposition over time differed only between the Salix species. A strong positive relationship was identified between the entire homologous series of alcohols and total wax load in all clones. Similarly strong relationships were observed between fatty acids and total wax load as well as fatty acids and alcohols in two Salix species and one Populus species hybrid. One Salix species, S. dasyclados, also displayed a strong positive relationship between alcohols and alkanes. These data indicate that species grown under the same environmental conditions produce measurably different cuticular waxes and that regulation of wax production appears to be different in each species. The important roles cuticular waxes play in drought tolerance, pest, and pathogen resistance, as well as the ease of wax extraction and analysis, strongly suggest that the characteristics of the cuticular wax may prove to be useful selectable traits in a breeding program.

  10. Bioacoustic investigations and taxonomic considerations on the Cicadetta montana species complex (Homoptera: Cicadoidea: Tibicinidae

    Directory of Open Access Journals (Sweden)

    Matija Gogala

    2004-06-01

    Full Text Available Recent bioacoustic investigations have shown that Cicadetta montana Scopoli 1772 is a complex of morphologically similar sister species that are best characterized by their song patterns. At the type locality of C. montana, only mountain cicadas with simple, long lasting song phrases were heard, recorded and collected. Therefore, we have good reasons to suggest that this type of song is characteristic for C. montana s. str. Boulard described a song of C. montana from France with phrases composed of a long and a short echeme; this type of song is characteristic for cicadas morphologically corresponding to C. montana var. brevipennis Fieber 1876; we suggest to raise this taxon to species level. On the basis of specific song, Puissant and Boulard described C. cerdaniensis from Pyrénées. A similar case was the discovery and description of C. montana macedonica Schedl 1999 from Macedonia; since these Macedonian cicadas are sympatric with at least two other cryptic species in the C. montana group and molecular investigations showed substantial genetic differences between C. macedonica and C. montana or C. brevipennis, we conclude that this taxon should also be raised to species level. Songs of closely related C. podolica and Korean mountain cicada are presented as well.Pesquisas recentes de bioacústica mostraram que Cicadetta montana Scopoli 1772 é um complexo de espécie-irmãs morfologicamente semelhantes e melhor caracterizadas por seus padrões de canto. Na localidade-tipo de C. montana somente cigarras serranas de longas frases de canto foram ouvidas, gravadas e coletadas. Portanto, temos boas razões para propor este tipo de canto como característico de C. montana s. str. Boulard descreveu um canto de C. montana da França com frases compostas de uma estridulação longa e uma curta; este tipo de canto é característico das cigarras correspondendo morfologicamente a C. montana var. brevipennis Fieber 1876; sugerimos elevar este táxon ao n

  11. Second Supplement to A Catalog of the Mosquitoes of the World (Diptera: Culicidae)

    Science.gov (United States)

    1984-01-01

    104. Brunhes, J. 1977a. Les moustiques de l’archipel des Comores I. - Inventaire, &partition et description de quatre esptces ou sous-espscies...nouvelles. Cah. O.R.S.T.O.M. Ser. Entomol. Med. Parasitol. 15:131-152. Brunhes, J. 1977b. Les moustiques de l’archipel des Comores 11. - Description de...Dieng. 1978. Aedes (Stegomyia) neoafricanus un nouvelle espzcie de moustique capture’e au Sgne’gal Oriental (Diptera: Culicidae), Cah. O.R.S.T.O.M

  12. Scale dependence in species turnover reflects variance in species occupancy.

    Science.gov (United States)

    McGlinn, Daniel J; Hurlbert, Allen H

    2012-02-01

    Patterns of species turnover may reflect the processes driving community dynamics across scales. While the majority of studies on species turnover have examined pairwise comparison metrics (e.g., the average Jaccard dissimilarity), it has been proposed that the species-area relationship (SAR) also offers insight into patterns of species turnover because these two patterns may be analytically linked. However, these previous links only apply in a special case where turnover is scale invariant, and we demonstrate across three different plant communities that over 90% of the pairwise turnover values are larger than expected based on scale-invariant predictions from the SAR. Furthermore, the degree of scale dependence in turnover was negatively related to the degree of variance in the occupancy frequency distribution (OFD). These findings suggest that species turnover diverges from scale invariance, and as such pairwise turnover and the slope of the SAR are not redundant. Furthermore, models developed to explain the OFD should be linked with those developed to explain species turnover to achieve a more unified understanding of community structure.

  13. Cryptic species as a window into the paradigm shift of the species concept.

    Science.gov (United States)

    Fišer, Cene; Robinson, Christopher T; Malard, Florian

    2018-02-01

    The species concept is the cornerstone of biodiversity science, and any paradigm shift in the delimitation of species affects many research fields. Many biologists now are embracing a new "species" paradigm as separately evolving populations using different delimitation criteria. Individual criteria can emerge during different periods of speciation; some may never evolve. As such, a paradigm shift in the species concept relates to this inherent heterogeneity in the speciation process and species category-which is fundamentally overlooked in biodiversity research. Cryptic species fall within this paradigm shift: they are continuously being reported from diverse animal phyla but are poorly considered in current tests of ecological and evolutionary theory. The aim of this review is to integrate cryptic species in biodiversity science. In the first section, we address that the absence of morphological diversification is an evolutionary phenomenon, a "process" counterpart to the long-studied mechanisms of morphological diversification. In the next section regarding taxonomy, we show that molecular delimitation of cryptic species is heavily biased towards distance-based methods. We also stress the importance of formally naming of cryptic species for better integration into research fields that use species as units of analysis. Finally, we show that incorporating cryptic species leads to novel insights regarding biodiversity patterns and processes, including large-scale biodiversity assessments, geographic variation in species distribution and species coexistence. It is time for incorporating multicriteria species approaches aiming to understand speciation across space and taxa, thus allowing integration into biodiversity conservation while accommodating for species uncertainty. © 2018 John Wiley & Sons Ltd.

  14. La RSE : nouvelle forme de dé-marchandisation du monde ? CSR: a new way of de-marchanisation of the world?

    Directory of Open Access Journals (Sweden)

    Richard Sobel

    2010-12-01

    Full Text Available Le mouvement dit de « RSE » entend concilier l’actuel mode d’accumulation à dominante financière avec certaines exigences sociales et environnementales. Or, ce mouvement s’inscrit assez bien dans l’analyse historique et institutionnaliste que Karl Polanyi a faite des limites de la marchandisation du monde. En effet, ce mouvement consiste à revenir sur la trop forte marchandisation du rapport à la nature et au travail qu’aurait entraîné le développement d’un capitalisme financiarisé. En réaction, ce mouvement mobilise l’engagement volontaire des entreprises pour bâtir une nouvelle « grande transformation », c’est-à-dire une forme inédite d’articulation entre le juste et l’efficace visant à assurer la viabilité du capitalisme. Cela revient à élargir l’engagement économique à autre chose que la simple maximisation des intérêts individuels de court terme. Cet article vise à exploiter cette proximité entre le mouvement de la RSE et l’analyse polanyienne de la marchandisation, proximité selon nous fructueuse et qui n’a jamais fait l’objet d’une analyse systématique. L’enjeu est de déterminer dans quelle mesure la RSE constitue aujourd’hui une réponse pertinente à la nécessaire gestion collective de la fiction que constitue la marchandisation apparente de la monnaie, de la terre et du travail.The movement says about "CSR" tries to reconcile the current financial mode of accumulation with certain social and environmental requirements. This movement joins well enough in the historic and institutionnalist analysis which Karl Polanyi made of the limits of marchandisation of the world. Indeed, this movement consists in returning on excess strong marchandisation of the relationship with the nature and with the work which would have pulled the new capitalism. In reaction, this movement mobilizes the individual commitment to build a new "great transformation", that is new articulation

  15. A globally-distributed alien invasive species poses risks to United States imperiled species.

    Science.gov (United States)

    McClure, Meredith L; Burdett, Christopher L; Farnsworth, Matthew L; Sweeney, Steven J; Miller, Ryan S

    2018-03-28

    In the midst of Earth's sixth mass extinction event, non-native species are a driving factor in many imperiled species' declines. One of the most widespread and destructive alien invasive species in the world, wild pigs (Sus scrofa) threaten native species through predation, habitat destruction, competition, and disease transmission. We show that wild pigs co-occur with up to 87.2% of imperiled species in the contiguous U.S. identified as susceptible to their direct impacts, and we project increases in both the number of species at risk and the geographic extent of risks by 2025. Wild pigs may therefore present a severe threat to U.S. imperiled species, with serious implications for management of at-risk species throughout wild pigs' global distribution. We offer guidance for efficient allocation of research effort and conservation resources across species and regions using a simple approach that can be applied to wild pigs and other alien invasive species globally.

  16. Methodes de calcul des forces aerodynamiques pour les etudes des interactions aeroservoelastiques

    Science.gov (United States)

    Biskri, Djallel Eddine

    L'aeroservoelasticite est un domaine ou interagissent la structure flexible d'un avion, l'aerodynamique et la commande de vol. De son cote, la commande du vol considere l'avion comme une structure rigide et etudie l'influence du systeme de commande sur la dynamique de vol. Dans cette these, nous avons code trois nouvelles methodes d'approximation de forces aerodynamiques: Moindres carres corriges, Etat minimal corrige et Etats combines. Dans les deux premieres methodes, les erreurs d'approximation entre les forces aerodynamiques approximees par les methodes classiques et celles obtenues par les nouvelles methodes ont les memes formes analytiques que celles des forces aerodynamiques calculees par LS ou MS. Quant a la troisieme methode, celle-ci combine les formulations des forces approximees avec les methodes standards LS et MS. Les vitesses et frequences de battement et les temps d'executions calcules par les nouvelles methodes versus ceux calcules par les methodes classiques ont ete analyses.

  17. Assessing species boundaries using multilocus species delimitation in a morphologically conserved group of neotropical freshwater fishes, the Poecilia sphenops species complex (Poeciliidae.

    Directory of Open Access Journals (Sweden)

    Justin C Bagley

    Full Text Available Accurately delimiting species is fundamentally important for understanding species diversity and distributions and devising effective strategies to conserve biodiversity. However, species delimitation is problematic in many taxa, including 'non-adaptive radiations' containing morphologically cryptic lineages. Fortunately, coalescent-based species delimitation methods hold promise for objectively estimating species limits in such radiations, using multilocus genetic data. Using coalescent-based approaches, we delimit species and infer evolutionary relationships in a morphologically conserved group of Central American freshwater fishes, the Poecilia sphenops species complex. Phylogenetic analyses of multiple genetic markers (sequences of two mitochondrial DNA genes and five nuclear loci from 10/15 species and genetic lineages recognized in the group support the P. sphenops species complex as monophyletic with respect to outgroups, with eight mitochondrial 'major-lineages' diverged by ≥2% pairwise genetic distances. From general mixed Yule-coalescent models, we discovered (conservatively 10 species within our concatenated mitochondrial DNA dataset, 9 of which were strongly supported by subsequent multilocus Bayesian species delimitation and species tree analyses. Results suggested species-level diversity is underestimated or overestimated by at least ~15% in different lineages in the complex. Nonparametric statistics and coalescent simulations indicate genealogical discordance among our gene tree results has mainly derived from interspecific hybridization in the nuclear genome. However, mitochondrial DNA show little evidence for introgression, and our species delimitation results appear robust to effects of this process. Overall, our findings support the utility of combining multiple lines of genetic evidence and broad phylogeographical sampling to discover and validate species using coalescent-based methods. Our study also highlights the

  18. Diseño de la estrategia de Inglés con propósitos específicos en un contexto extracurricular para el aprendizaje del Inglés técnico médico en estudiantes de medicina de la Universidad Regional Autónoma de los Andes

    OpenAIRE

    Montes De Oca Sánchez, Irma Verónica

    2017-01-01

    1. Introducción. 2. Planteamiento de la propuesta de trabajo 3. Marco Teórico 4. Metodología 5. Resultados 6. Conclusiones y Recomendaciones. En el proceso de formación profesional del médico que realiza sus estudios en la Universidad Regional Autónoma de los Andes, se incluye la preparación en el dominio de competencias en inglés; misma que comprende el aprendizaje del inglés con propósitos generales (EGP) y no abarca el aprendizaje de aspectos específicos relacionados ...

  19. POUR UN ÉCLAIRAGE STYLISTIQUE DE L’ŒUVRE DE FREUD : de l’opération médicale à la métaphore opérante dans la nouvelle édition intégrale des Lettres à Wilhelm Fliess

    Directory of Open Access Journals (Sweden)

    Laurence Aubry

    2010-07-01

    Full Text Available Cet article propose de reconsidérer les liens entre la psychanalyse, la littérature et les sciences du langage à partir d’une approche des textes analytiques centrée sur le détail de l’expression. Nous partons ici de la question de la métaphore, croisant celle de la tra-duction et de l’histoire des œuvres de Freud pour examiner un événement de lecture : la redécouverte des lettres à Flieβ dans la nouvelle traduction intégrale en français. Nous montrerons comment un complexe figural irradie à partir de la métaphore de l’opération, considérée comme une figure vive dans les énoncés concernant Emma Eckstein. Ainsi le style anticipe sur la découverte à venir de la cure, de l’Œdipe et du transfert. Comme l’écrivain absolument moderne, l’écriture est en avant de la science qu’elle prévoit et an-nonce. Aussi la question du style renoue-t-elle un dialogue où psychanalyse et littérature trouvent à s’enrichir mutuellement dans le respect de leur altérité.

  20. Multiple mechanisms enable invasive species to suppress native species.

    Science.gov (United States)

    Bennett, Alison E; Thomsen, Meredith; Strauss, Sharon Y

    2011-07-01

    Invasive plants represent a significant threat to ecosystem biodiversity. To decrease the impacts of invasive species, a major scientific undertaking of the last few decades has been aimed at understanding the mechanisms that drive invasive plant success. Most studies and theories have focused on a single mechanism for predicting the success of invasive plants and therefore cannot provide insight as to the relative importance of multiple interactions in predicting invasive species' success. We examine four mechanisms that potentially contribute to the success of invasive velvetgrass Holcus lanatus: direct competition, indirect competition mediated by mammalian herbivores, interference competition via allelopathy, and indirect competition mediated by changes in the soil community. Using a combination of field and greenhouse approaches, we focus on the effects of H. lanatus on a common species in California coastal prairies, Erigeron glaucus, where the invasion is most intense. We found that H. lanatus had the strongest effects on E. glaucus via direct competition, but it also influenced the soil community in ways that feed back to negatively influence E. glaucus and other native species after H. lanatus removal. This approach provided evidence for multiple mechanisms contributing to negative effects of invasive species, and it identified when particular strategies were most likely to be important. These mechanisms can be applied to eradication of H. lanatus and conservation of California coastal prairie systems, and they illustrate the utility of an integrated set of experiments for determining the potential mechanisms of invasive species' success.

  1. Species climate range influences hydraulic and stomatal traits in Eucalyptus species.

    Science.gov (United States)

    Bourne, Aimee E; Creek, Danielle; Peters, Jennifer M R; Ellsworth, David S; Choat, Brendan

    2017-07-01

    Plant hydraulic traits influence the capacity of species to grow and survive in water-limited environments, but their comparative study at a common site has been limited. The primary aim of this study was to determine whether selective pressures on species originating in drought-prone environments constrain hydraulic traits among related species grown under common conditions. Leaf tissue water relations, xylem anatomy, stomatal behaviour and vulnerability to drought-induced embolism were measured on six Eucalyptus species growing in a common garden to determine whether these traits were related to current species climate range and to understand linkages between the traits. Hydraulically weighted xylem vessel diameter, leaf turgor loss point, the water potential at stomatal closure and vulnerability to drought-induced embolism were significantly ( P Eucalyptus trees has important implications for the limits of species responses to changing environmental conditions and thus for species survival and distribution into the future, and yields new information for physiological models. © The Author 2017. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oup.com

  2. Palpi aplenty: New species in the Chrysotus longipalpus species group (Diptera: Dolichopodidae)

    Science.gov (United States)

    Justin B. Runyon; Renato S. Capellari

    2018-01-01

    Four new Nearctic species belonging to the Chrysotus longipalpus species group are described: Chrysotus keyensis sp. nov. (Florida), Chrysotus mccreadiei sp. nov. (Alabama), Chrysotus mystax sp. nov. (Alabama), and Chrysotus plumarista sp. nov. (Alabama). This brings the number of known species in this group to twelve. A key to species of males of the C. longipalpus...

  3. El conocimiento específico y la práctica pedagógica en el escenario de la educación superior del siglo XXI

    Directory of Open Access Journals (Sweden)

    Rina Márceles de Sanz

    2015-10-01

    Full Text Available El conocimiento específico y la práctica pedagógica en el escenario de la educación superior del siglo XXI se fundamentan en un proceso analítico, reflexivo y etnográfico, que determina en primera instancia algunos criterios importantes acerca del concepto de universidad para ver hacia dónde se proyecta. Este artículo analiza las concepciones de la práctica pedagógica bajo la luz de destacados autores como Olga Lucía Zuluaga, quien viene investigando el tema desde hace varias décadas y Basil Bernstein quien la estudia desde las relaciones sociales y de poder. Por último se hace una propuesta metodológica que se basa en la solución de problemas y la enseñanza problémica para lograr los cambios significativos que amerita la educación superior del siglo XXI.AbstractThe specific knowledge and the pedagogic practice in the higher/collage educational context of the XXI century is based on an analytical, reflexive and ethnographic process, that determines in first place some important criteria about the university concept to foresee where it is projected. This article focuses of teaching practices in light of authors such as Olga Lucia Zuluaga, who has been investigating the issue for several decades and Basil Berstein who has been studying the social and power relations. Finally a methodological proposal is being considered based on problem solutions and the teaching to achieve meaningful changes that Higher Education for the XXI century deserves. 

  4. Species recovery in the United States: Increasing the effectiveness of the Endangered Species Act

    Science.gov (United States)

    Daniel M. Evans; Judy P. Che-Castaldo; Deborah Crouse; Frank W. Davis; Rebecca Epanchin-Niell; Curtis H. Flather; R. Kipp Frohlich; Dale D. Goble; Ya-Wei Li; Timothy D. Male; Lawrence L. Master; Matthew P. Moskwik; Maile C. Neel; Barry R. Noon; Camille Parmesan; Mark W. Schwartz; J. Michael Scott; Byron K. Williams

    2016-01-01

    The Endangered Species Act (ESA) has succeeded in shielding hundreds of species from extinction and improving species recovery over time. However, recovery for most species officially protected by the ESA - i.e., listed species - has been harder to achieve than initially envisioned. Threats to species are persistent and pervasive, funding has been insufficient...

  5. Comportements spatio-temporels des touristes dans la région de Québec

    OpenAIRE

    Kercuku, Hava

    2009-01-01

    La pratique du tourisme urbain est un facteur important pour le développement économique et spatial de nombreuses villes et régions dans le monde. Cependant de nouvelles destinations et de nouvelles pratiques émergent constamment. D’une part, l’offre touristique urbaine se modifie et se diversifie constamment, et d’autre part, les pratiques touristiques se renouvellent, s’entrecroisent et se ressemblent en cherchant toujours plus, plus vite et plus personnalisé. La région touristique de Québe...

  6. Conclusion du titre II

    OpenAIRE

    Nguyen, Minh Hang

    2013-01-01

    La qualification de la conciliation et de la médiation judiciaires en contrats de pourparlers judiciaires emporte d’importantes conséquences. 216. Consécration d’une nouvelle famille de contrats : les contrats de pourparlers judiciaires - Elle consacre tout d’abord une nouvelle famille de contrats : les contrats de pourparlers judiciaires. Ce faisant, elle apporte une pierre supplémentaire à l’édifice des figures hybrides qui mêlent le conventionnel et le judiciaire. 217. Les contrats de pour...

  7. Valuing local endangered species. The role of intra-species substitutes

    Energy Technology Data Exchange (ETDEWEB)

    Loureiro, Maria L. [Department of Economic Analysis, Universidade de Santiago (Spain); IDEGA, Universidade de Santiago de Compostela, Campus Sur, Avda das Ciencias, S/N. 15782, Santiago de Compostela (Spain); Ojea, Elena [IDEGA, Universidade de Santiago de Compostela, Campus Sur, Avda das Ciencias, S/N. 15782, Santiago de Compostela (Spain)

    2008-12-01

    Valuation of endangered species is important in many circumstances, and particularly when assessing the impact of large accidental oil spills. Previous studies have tested the effects of including in the contingent valuation survey reminders about the existence of diverse substitutes (in terms of other natural resources also in danger of extinction in the same area, other programs to be valued, or alternative uses of money). We include a reminder about the existence of the same biological species not being under danger of extinction elsewhere. We believe this reminder allows individuals to make an easy assessment of the biological scarcity of the species they are supposed to value. Thus, the key difference with previous studies is that valuation of endangered species is combined with an assessment of preferences towards conservation of local and native species. Our WTP results are not sensitive to the information provided about other foreign substitutes. Implications of this finding are discussed. (author)

  8. Valuing local endangered species. The role of intra-species substitutes

    International Nuclear Information System (INIS)

    Loureiro, Maria L.; Ojea, Elena

    2008-01-01

    Valuation of endangered species is important in many circumstances, and particularly when assessing the impact of large accidental oil spills. Previous studies have tested the effects of including in the contingent valuation survey reminders about the existence of diverse substitutes (in terms of other natural resources also in danger of extinction in the same area, other programs to be valued, or alternative uses of money). We include a reminder about the existence of the same biological species not being under danger of extinction elsewhere. We believe this reminder allows individuals to make an easy assessment of the biological scarcity of the species they are supposed to value. Thus, the key difference with previous studies is that valuation of endangered species is combined with an assessment of preferences towards conservation of local and native species. Our WTP results are not sensitive to the information provided about other foreign substitutes. Implications of this finding are discussed. (author)

  9. Detection of cryptic species

    International Nuclear Information System (INIS)

    Cockburn, A.F.; Jensen, T.; Seawright, J.A.

    1998-01-01

    Morphologically similar cryptic species are common in insects. In Anopheles mosquitoes morphologically described species are complexes of cryptic species. Cryptic species are of great practical importance for two reasons: first, one or more species of the complex might not be a pest and control efforts directed at the complex as a whole would therefore be partly wasted; and second, genetic (and perhaps biological) control strategies directed against one species of the complex would not affect other species of the complex. At least one SIT effort has failed because the released sterile insect were of a different species and therefore did not mate with the wild insects being targeted. We use a multidisciplinary approach for detection of cryptic species complexes, focusing first on identifying variability in wild populations using RFLPs of mitochondrial and ribosomal RNA genes (mtDNA and rDNA); followed by confirmation using a variety of other techniques. For rapid identification of wild individuals of field collections, we use a DNA dot blot assay. DNA probes can be isolated by differential screening, however we are currently focusing on the sequencing of the rDNA extragenic spacers. These regions are repeated several hundred times per genome in mosquitoes and evolve rapidly. Molecular drive tends to keen the individual genes homogeneous within a species. (author)

  10. Species-specific associations between overstory and understory tree species in a semideciduous tropical forest

    Directory of Open Access Journals (Sweden)

    Flaviana Maluf Souza

    2015-03-01

    Full Text Available We investigated the occurrence of associations between overstory and understory tree species in a semideciduous tropical forest. We identified and measured all trees of nine canopy species with diameter at breast height ≥4.8 cm in a 10.24 ha plot and recorded all individuals beneath their canopies ("understory individuals" within the same diameter class. The total density of understory individuals did not significantly differ under different overstory species. One overstory species (Ceiba speciosa showed higher understory species richness compared with five other species. There was a strong positive association between three overstory species (Esenbeckia leiocarpa, Savia dictyocarpa, and C. speciosa and the density of seven understory species (Balfourodendron riedelianum, Chrysophyllum gonocarpum, E. leiocarpa, Holocalyx balansae, Machaerium stipitatum, Rhaminidium elaeocarpum, and S. dictyocarpa. These results probably reflect the outcome of a complex set of interactions including facilitation and competition, and further studies are necessary to better understand the magnitude and type of the effects of individual overstory species on understory species. The occurrence of species-specific associations shown here reinforces the importance of non-random processes in structuring plant communities and suggest that the influence of overstory species on understory species in high-diversity forests may be more significant than previously thought.

  11. Species of Wadicosa (Araneae, Lycosidae): a new species from Madagascar.

    Science.gov (United States)

    Kronestedt, Torbjörn

    2017-05-10

    Since establishing the wolf spider genus Wadicosa Zyuzin, 1985 (Zyuzin 1985), eleven species have been accepted in it, either by transfer from Lycosa Latreille, 1804 or Pardosa C.L. Koch, 1847 or by original designation (WSC 2017). However, according to Kronestedt (1987), additional species wait to be formally transferred to Wadicosa. The genus is restricted to the Old World, with one species, Wadicosa jocquei Kronestedt, 2015, recently described from Madagascar and surrounding islands.

  12. Invasive non-native species' provision of refugia for endangered native species.

    Science.gov (United States)

    Chiba, Satoshi

    2010-08-01

    The influence of non-native species on native ecosystems is not predicted easily when interspecific interactions are complex. Species removal can result in unexpected and undesired changes to other ecosystem components. I examined whether invasive non-native species may both harm and provide refugia for endangered native species. The invasive non-native plant Casuarina stricta has damaged the native flora and caused decline of the snail fauna on the Ogasawara Islands, Japan. On Anijima in 2006 and 2009, I examined endemic land snails in the genus Ogasawarana. I compared the density of live specimens and frequency of predation scars (from black rats [Rattus rattus]) on empty shells in native vegetation and Casuarina forests. The density of land snails was greater in native vegetation than in Casuarina forests in 2006. Nevertheless, radical declines in the density of land snails occurred in native vegetation since 2006 in association with increasing predation by black rats. In contrast, abundance of Ogasawarana did not decline in the Casuarina forest, where shells with predation scars from rats were rare. As a result, the density of snails was greater in the Casuarina forest than in native vegetation. Removal of Casuarina was associated with an increased proportion of shells with predation scars from rats and a decrease in the density of Ogasawarana. The thick and dense litter of Casuarina appears to provide refugia for native land snails by protecting them from predation by rats; thus, eradication of rats should precede eradication of Casuarina. Adaptive strategies, particularly those that consider the removal order of non-native species, are crucial to minimizing the unintended effects of eradication on native species. In addition, my results suggested that in some cases a given non-native species can be used to mitigate the impacts of other non-native species on native species.

  13. Detection of cryptic species

    Energy Technology Data Exchange (ETDEWEB)

    Cockburn, A F; Jensen, T; Seawright, J A [United States Dept. of Agriculture, Agricultural Research Service, Medical and Veterinary Entomology Research Lab., Gainesville, FL (United States)

    1998-01-01

    Morphologically similar cryptic species are common in insects. In Anopheles mosquitoes morphologically described species are complexes of cryptic species. Cryptic species are of great practical importance for two reasons: first, one or more species of the complex might not be a pest and control efforts directed at the complex as a whole would therefore be partly wasted; and second, genetic (and perhaps biological) control strategies directed against one species of the complex would not affect other species of the complex. At least one SIT effort has failed because the released sterile insect were of a different species and therefore did not mate with the wild insects being targeted. We use a multidisciplinary approach for detection of cryptic species complexes, focusing first on identifying variability in wild populations using RFLPs of mitochondrial and ribosomal RNA genes (mtDNA and rDNA); followed by confirmation using a variety of other techniques. For rapid identification of wild individuals of field collections, we use a DNA dot blot assay. DNA probes can be isolated by differential screening, however we are currently focusing on the sequencing of the rDNA extragenic spacers. These regions are repeated several hundred times per genome in mosquitoes and evolve rapidly. Molecular drive tends to keen the individual genes homogeneous within a species. (author). 11 refs, 2 figs, 2 tabs.

  14. Invasive Species Science Branch: research and management tools for controlling invasive species

    Science.gov (United States)

    Reed, Robert N.; Walters, Katie D.

    2015-01-01

    Invasive, nonnative species of plants, animals, and disease organisms adversely affect the ecosystems they enter. Like “biological wildfires,” they can quickly spread and affect nearly all terrestrial and aquatic ecosystems. Invasive species have become one of the greatest environmental challenges of the 21st century in economic, environmental, and human health costs, with an estimated effect in the United States of more than $120 billion per year. Managers of the Department of the Interior and other public and private lands often rank invasive species as their top resource management problem. The Invasive Species Science Branch of the Fort Collins Science Center provides research and technical assistance relating to management concerns for invasive species, including understanding how these species are introduced, identifying areas vulnerable to invasion, forecasting invasions, and developing control methods. To disseminate this information, branch scientists are developing platforms to share invasive species information with DOI cooperators, other agency partners, and the public. From these and other data, branch scientists are constructing models to understand and predict invasive species distributions for more effective management. The branch also has extensive herpetological and population biology expertise that is applied to harmful reptile invaders such as the Brown Treesnake on Guam and Burmese Python in Florida.

  15. Formación en Género en la Universidad: ¿Materia de asignaturas específicas o de educación transversal?

    Directory of Open Access Journals (Sweden)

    Rosario Asián Chaves

    2015-01-01

    Full Text Available En este artículo se debaten los diferentes resultados de recibir una formación mediante asignaturas específicas o de forma transversal. La persistencia de estereotipos de género y la división sexual del trabajo están relacionadas con la falta de concienciación social, debida, entre otros factores, a la falta de formación en cuestiones de género. Esta formación es necesaria para reflexionar y "reconstruir" los mensajes sobre género para develar las premisas ideológicas y las jerarquías subyacentes en los mensajes. El objetivo principal es constatar la importancia de recibir formación en género en la Universidad. Para ello se propone comparar los resultados de las encuestas dirigidas al alumnado de las licenciaturas en Ciencias del Trabajo y en Administración y Dirección de Empresas y observar si existen diferencias entre ambos grupos, tanto en relación con su formación sobre la materia, como con su comportamiento y actitud frente a determinadas cuestiones relacionadas con el género. Además, se trataría de ver, si existe diferencia, en qué medida puede derivarse de la formación recibida. Se han pasado encuestas a una muestra representativa de alumnas/os de ambas titulaciones y se han aplicado las oportunas técnicas estadísticas a través del software SPSS. Los resultados del trabajo refuerzan la idea inicial de la necesidad de incorporar asignaturas que den formación en género en programas y titulaciones universitarias y plantear no sólo conocimientos disciplinares orientados al "saber" y profesionales orientados al "saber hacer", sino también actitudes para un compromiso ético orientadas a la equidad de género.

  16. Evaluating species richness: biased ecological inference results from spatial heterogeneity in species detection probabilities

    Science.gov (United States)

    McNew, Lance B.; Handel, Colleen M.

    2015-01-01

    Accurate estimates of species richness are necessary to test predictions of ecological theory and evaluate biodiversity for conservation purposes. However, species richness is difficult to measure in the field because some species will almost always be overlooked due to their cryptic nature or the observer's failure to perceive their cues. Common measures of species richness that assume consistent observability across species are inviting because they may require only single counts of species at survey sites. Single-visit estimation methods ignore spatial and temporal variation in species detection probabilities related to survey or site conditions that may confound estimates of species richness. We used simulated and empirical data to evaluate the bias and precision of raw species counts, the limiting forms of jackknife and Chao estimators, and multi-species occupancy models when estimating species richness to evaluate whether the choice of estimator can affect inferences about the relationships between environmental conditions and community size under variable detection processes. Four simulated scenarios with realistic and variable detection processes were considered. Results of simulations indicated that (1) raw species counts were always biased low, (2) single-visit jackknife and Chao estimators were significantly biased regardless of detection process, (3) multispecies occupancy models were more precise and generally less biased than the jackknife and Chao estimators, and (4) spatial heterogeneity resulting from the effects of a site covariate on species detection probabilities had significant impacts on the inferred relationships between species richness and a spatially explicit environmental condition. For a real dataset of bird observations in northwestern Alaska, the four estimation methods produced different estimates of local species richness, which severely affected inferences about the effects of shrubs on local avian richness. Overall, our results

  17. Multi-species biofilm of Candida albicans and non-Candida albicans Candida species on acrylic substrate

    Directory of Open Access Journals (Sweden)

    Apurva K Pathak

    2012-02-01

    Full Text Available OBJECTIVE: In polymicrobial biofilms bacteria extensively interact with Candida species, but the interaction among the different species of the Candida is yet to be completely evaluated. In the present study, the difference in biofilm formation ability of clinical isolates of four species of Candida in both single-species and multi-species combinations on the surface of dental acrylic resin strips was evaluated. MATERIAL AND METHODS: The species of Candida, isolated from multiple species oral candidiasis of the neutropenic patients, were used for the experiment. Organisms were cultured on Sabouraud dextrose broth with 8% glucose (SDB. Biofilm production on the acrylic resins strips was determined by crystal violet assay. Student's t-test and ANOVA were used to compare in vitro biofilm formation for the individual species of Candida and its different multi-species combinations. RESULTS: In the present study, differences between the mean values of the biofilm-forming ability of individual species (C. glabrata>C. krusei>C. tropicalis>C. albicans and in its multi-species' combinations (the highest for C. albicans with C. glabrata and the lowest for all the four species combination were reported. CONCLUSIONS: The findings of this study showed that biofilm-forming ability was found greater for non-Candida albicans Candida species (NCAC than for C. albicans species with intra-species variation. Presence of C. albicans in multi-species biofilms increased, whereas; C. tropicalis decreased the biofilm production with all other NCAC species.

  18. Bilan et évolution de la mise en œuvre de géosynthétiques bentonitiques (GSB dans les ouvrages souterrains

    Directory of Open Access Journals (Sweden)

    MAHUET, Jean-louis

    2012-08-01

    Full Text Available En France, les premières applications de procédés d’étanchéité à base de bentonite dans les ouvrages souterrains remontent à trente ans. L'évolution des procédés et l'arrivée de nouvelles normes ont conduit à établir de nouvelles spécifications de caractérisation et de presciption de mise en œuvre des géosynthétiques bentonitiques : cet article nous en présente les principales.

  19. Drugi pored mene. Antologija priča i eseja pisaca Jugoistočne Evrope (anthologie éditée par Ričard Švarc

    Directory of Open Access Journals (Sweden)

    Pieter Troch

    2009-02-01

    Full Text Available L’anthologie Drugi pored mene… (L’Autre à côté de moi. Anthologie de nouvelles et d’essais d’écrivains de l’Europe du sud-est comprend vingt et une nouvelles et essais écrits par des auteurs contemporains serbes (David Albahari, Vladimir Arsenijević, László Végel, Charles Simic, Biljana Srbljanović, Dragan Velikić, kosovars (Beqë Cufaj, croates (Slavenka Drakulić, Bora Ćosić, Miljenko Jergović, Irena Vrkljan, bulgares (Dimitré Dinev, Vladimir Zarev, bosniaques (Aleksandar Hemon, Saša Sta...

  20. Analyse de Langues et cultures - Les TIC, enseignement et apprentissage

    Directory of Open Access Journals (Sweden)

    Élisabeth Brodin

    2006-04-01

    Full Text Available 1. Introduction Cet ouvrage constitue les actes du colloque des IUFM (Institut Universitaire de Formation des Maîtres de décembre 2003, intitulé "Quelles nouvelles perspectives pour l'enseignement / apprentissage des langues et cultures ?" On peut déplorer a priori que le titre du livre, au demeurant ambitieux, et le sous-titre ne reprennent pas la question des nouvelles perspectives apportées par les Technologies de l'Information et de la Communication (TIC à l'enseignement des langues e...

  1. Eleonora Pasotti, Political branding in cities. The decline of machine politics in Bogotá, Naples, and Chicago

    Directory of Open Access Journals (Sweden)

    Gilles Pinson

    2011-11-01

    Full Text Available Au travers de cet ouvrage, Eleonora Pasotti, professeure de science politique à l’Université de Californie à Santa Cruz, renoue avec la grande tradition nord-américaine des travaux de science politique qui aborde la grande ville comme lieu d’invention et de repérage des nouvelles formes d’échange politique et de lien entre gouvernants et gouvernés. Le livre articule une analyse des nouveaux comportements électoraux et des nouvelles logiques de mobilisation électorale, d’une part, et une analy...

  2. Café des Sciences - French version only

    CERN Document Server

    Café des Sciences

    2006-01-01

    Une langue sur le bout de la langue. L'apprentissage d'une langue ne s'arrête pas à des pages de vocabulaire, des règles de grammaire et des exercices de prononciation. Une langue, c'est une porte ouverte sur une nouvelle culture, une nouvelle façon de penser le monde, le rapport à l'autre, c'est élargir son environnement social, affectif, culturel. Actuellement, les nombreuses langues qui se côtoient dans notre société, nous font entrer dans une réalité multiculturelle, multilinguistique.

  3. PCR with Paracoccidioides brasiliensis specific primers: potential use in ecological studies PCR com «primers» específicos de Paracoccidioides brasiliensis: uso potencial em estudos ecológicos

    Directory of Open Access Journals (Sweden)

    S. DÍEZ

    1999-11-01

    Full Text Available The precise microenvironment of Paracoccidioides brasiliensis has not yet been discovered perhaps because the methods used are not sensitive enough. We applied to this purpose the polymerase chain reaction (PCR using three sets of specific primers corresponding to two P. brasiliensis genes. This fungus as well as several other fungi, were grown and their DNA obtained by mechanical disruption and a phenol chloroform isoamylalcohol-based purification method. The DNA served for a PCR reaction that employed specific primers from two P. brasiliensis genes that codify for antigenic proteins, namely, the 27 kDa and the 43 kDa. The lowest detection range for the 27 kDa gene was 3 pg. The amplification for both genes was positive only with DNA from P. brasiliensis; additionally, the mRNA for the 27 kDa gene was present only in P. brasiliensis, as indicated by the Northern analysis. The standardization of PCR technology permitted the amplification of P. brasiliensis DNA in artificially contaminated soils and in tissues of armadillos naturally infected with the fungus. These results indicate that PCR technology could play an important role in the search for P. brasiliensis’ habitat and could also be used in other ecological studies.O microambiente adequado do Paracoccidioides brasiliensis não foi ainda bem esclarecido, talvez porque os métodos utilizados não sejam suficientemente sensíveis. Aplicamos com este propósito, a reação em cadeia da polimerase (PCR usando três jogos de primers específicos do P. brasiliensis, correspondendo a dois dos genes do P. brasiliensis. Este fungo, assim como outros fungos, foram cultivados e seus DNAs obtidos por ruptura mecânica e purificados com mistura de fenol-clorofórmio com álcool isoamílico. Os DNAs serviram para a reação de PCR utilizando-se primers específicos para dois dos genes do P. brasiliensis que codificam para as proteínas antigênicas, denominadas, 27 kDa e 43 kDa. O limite mínimo de

  4. Separation of chemical species

    International Nuclear Information System (INIS)

    Rentzepis, P.M.

    1977-01-01

    Isotopic separation is accomplished by (1) a second photon irradiation step for selective ionization of a first isotopic species and (2) selective precipitation of a generally immiscible liquid from the saturating vapor phase on the ionized species. The first photon corresponds with a sharply defined spectral portion of the irradiation which exclusively excites the first species to a vibrational level. The second photon further excites this species to its ionization level. Selective precipitation is by coulombic attraction between the ionized species and the vapor. The procedure is applicable to any vapor phase ionizable material

  5. Les Diaboliques de Barbey d’Aurevilly : Un éloge de la provocation. Regard sur la nouvelle Le bonheur dans le crime (Les Diaboliques, de Barbey d’Aurevilly: elogio de la provocación. Sobre la novela corta La dicha en el crimen

    Directory of Open Access Journals (Sweden)

    Verónica Murillo Chinchilla

    2015-09-01

    Full Text Available Cet article analyse la nouvelle Le bonheur dans le crime de l’écrivain français, Barbey d’Aurevilly dans le but de mettre en exergue les trois axes sur lesquels se déplie l’idée esthétique de l’auteur : l’image de la femme, la notion d’amour et l’idéalisation de la transgression. L’intention moraliste à la base du recueil Les Diaboliques (auquel appartient Le Bonheur dans le crime, se transforme en une sorte d’éloge de la beauté du Mal. El presente artículo analiza la novela corta Le bonheur dans le crime (La dicha en el crimen del francés Barbey d’Aurevilly, con el objetivo de destacar los tres ejes en torno a los cuales se despliega la idea estética del autor: la imagen de la mujer, la noción de amor y la idealización de la transgresión. La intención moralista que dio origen a la recopilación de Les Diaboliques (al cual pertenece Le Bonheur dans le crime, se transforma de cierta manera en un elogio a la belleza del Mal.

  6. Alien species recorded in the United Arab Emirates: an initial list of terrestrial and freshwater species

    Directory of Open Access Journals (Sweden)

    Pritpal Soorae

    2015-10-01

    Full Text Available Little is documented on the alien terrestrial and freshwater species in the United Arab Emirates. To address this, an assessment of terrestrial and freshwater alien species was conducted using various techniques such as a questionnaire, fieldwork data, networking with relevant people, and a detailed literature review. The results of the initial assessment show that there are 146 alien species recorded in the following seven major taxonomic groups: invertebrates 49 species, freshwater fish five species, amphibian one species, reptiles six species, birds 71 species, mammals six species and plants eight species. To inform decision makers a full list of the 146 species identified in this assessment is presented. 

  7. Linking Keystone Species and Functional Groups: A New Operational Definition of the Keystone Species Concept

    OpenAIRE

    Robert D. Davic

    2003-01-01

    The concept of the "keystone species" is redefined to allow for the a priori prediction of these species within ecosystems. A keystone species is held to be a strongly interacting species whose top-down effect on species diversity and competition is large relative to its biomass dominance within a functional group. This operational definition links the community importance of keystone species to a specific ecosystem process, e.g., the regulation of species diversity, within functional groups ...

  8. The functional biogeography of species

    DEFF Research Database (Denmark)

    Carstensen, Daniel W.; Dalsgaard, Bo; Svenning, Jens-Christian

    2013-01-01

    Biogeographical systems can be analyzed as networks of species and geographical units. Within such a biogeographical network, individual species may differ fundamentally in their linkage pattern, and therefore hold different topological roles. To advance our understanding of the relationship betw...... to distributions at the local community level. We finally discuss how our biogeographical species roles may correspond to the stages of the taxon cycle and other prominent theories of species assembly.......Biogeographical systems can be analyzed as networks of species and geographical units. Within such a biogeographical network, individual species may differ fundamentally in their linkage pattern, and therefore hold different topological roles. To advance our understanding of the relationship...... between species traits and large-scale species distribution patterns in archipelagos, we use a network approach to classify birds as one of four biogeographical species roles: peripherals, connectors, module hubs, and network hubs. These roles are based upon the position of species within the modular...

  9. Littérature arabe en Israël : vers une sensibilité nouvelle Arabic Literature in Israel: Towards a New Sensibility ספרות ערבית בישראל

    Directory of Open Access Journals (Sweden)

    Sobhi Boustani

    2011-10-01

    Full Text Available La cause palestinienne chez les poètes arabes israéliens. Le présent article s’évertue à montrer les mouvements marquant l'évolution de la poésie arabe en Israël, dans un contexte contradictoire. Il souligne trois tendances principales. La première, explicitement militante, développée dans le giron de la Rakah, parti communiste israélien. Destinée à un public particulier et animée par une idéologie de combat, elle sacrifie parfois la poétique au profit de la politique. La deuxième tendance semble d'une nouvelle esthétique poétique basée sur l'individualité et l'expérience personnelle. La troisième voix poétique, profondément intimiste, est représentée par la poétesse Nida Khoury. Son approche de la résistance et du militantisme, ainsi que son approche originale de la langue révèle la profondeur d'une déchirure personnelle et la finesse d'un engagement subtilement exprimé.Enfin, le tiraillement intérieur entre deux appartenances et la recherche identitaire constituent l'un des principaux thèmes qui unissent les poètes de ces trois tendances.The present article focuses on showing the movements marking the evolution of Arabic poetry in Israel in a conflicting context. It points out three main tendencies. The first one, explicitly militant, developed in the lap of the Israeli communist party Rakah. Intended for a general public and animated by an ideology of fight, it sometimes sacrifices the poetics for the benefit of politics. The second tendency looks for a new poetic aesthetics based on individuality and personal experience. The third poetic voice, profoundly intimist, is represented by the poet Nidâ 'Khoury. Its approach of the resistance and the militancy as well as its original approach of the language reveal the depth of a personal tearing and the finesse of a subtly expressed commitment.Finally, the interior tugging between two belongings and the identical seeking constitute one of the main themes

  10. Linking Keystone Species and Functional Groups: A New Operational Definition of the Keystone Species Concept

    Directory of Open Access Journals (Sweden)

    Robert D. Davic

    2003-07-01

    Full Text Available The concept of the "keystone species" is redefined to allow for the a priori prediction of these species within ecosystems. A keystone species is held to be a strongly interacting species whose top-down effect on species diversity and competition is large relative to its biomass dominance within a functional group. This operational definition links the community importance of keystone species to a specific ecosystem process, e.g., the regulation of species diversity, within functional groups at lower trophic levels that are structured by competition for a limited resource. The a priori prediction of keystone species has applied value for the conservation of natural areas.

  11. Invading species in the Eel River, California: Successes, failures, and relationships with resident species

    Science.gov (United States)

    Brown, L.R.; Moyle, P.B.

    1997-01-01

    We examined invasions of non-native fishes into the Eel River, California. At least 16 species of fish have been introduced into the drainage which originally supported 12-14 fish species. Our study was prompted by the unauthorized introduction in 1979 of Sacramento squawfish, Ptychocheilus grandis, a large predatory cyprinid. From 1986 to 1990, we conducted growth and diet studies of squaw fish, conducted intensive surveys of the distribution and habitat associations of both native and introduced species, and examined the nature of species-habitat and interspecies relationships. We found no evidence for increased growth or expanded feeding habits, compared to native populations, of Sacramento squawfish as they invaded the Eel River drainage. Ten of the introduced species were well established, with four species limited to a reservoir and six species established in streams. The success or failure of introductions of stream species appeared to be a function of the ability of a species to survive the fluctuating, highly seasonal, flow regime. The present mixture of native and exotic species has not formed stable fish assemblages but it seems likely that four habitat-associated assemblages will develop. The overall effect of the successful species introductions has been to assemble a group of species, with some exceptions, that are native to and occur together in many California streams. The assemblages now forming are similar to those found in other California streams. The assemblage characterized by squawfish and suckers is likely to be resistant to invasion, in the absence of human caused habitat modifications.

  12. Introduction à l'information quantique

    CERN Document Server

    Le Bellac, Michel

    2005-01-01

    La nouvelle science de l'information quantique est destinée à occuper, dans quelques années, une place importante en informatique. Les ordinateurs quantiques, encore de trop petite taille pour être utilisés efficacement, et la cryptographie quantique, opérationnelle depuis peu, représenteront alors une avancée décisive dans le domaine de la sécurité informatique. L'auteur de ce livre propose une introduction concise et précise, accessible pour l'essentiel aux non-spécialistes en physique, aux bases de cette nouvelle discipline. Un ouvrage important pour la jonction entre la communauté des informaticiens et celle des spécialistes de la physique quantique. "Le livre de Michel Le Bellac est promis à un beau succès. Il sera utile à tous ceux qui souhaitent comprendre les bases de la nouvelle science en train de naître. Bon voyage dans cet univers bizarre et mystérieux... qui est celui de notre avenir." Jean-Paul Delahaye

  13. Supersymmetry and the unification of fundamental interactions.

    Science.gov (United States)

    Fayet, P.

    Les physiciens élaborent progressivement une description unifée des lois de l'Univers, qui fait intervenir des principes de symétrie de plus en plus étendus. La supersymétrie, qui englobe la mécanique quantique et la relativité générale en opérant dans une extension de l'espace-temps ordinaire, appelée le superespace, est-elle l'un de ces principes fondamentaux? Dans cet article, l'auteur explique ce qu'est cette nouvelle symétrie, et comment, pour appliquer celle-ci au monde physique, il a été amené à envisager l'existence de toute une famille de nouvelles particules - comme les photinos, gluinos, squarks et sélectrons - que l'on recherche activement aujourd'hui. On espère parvenir à les détecter grâce aux nouvelles générations d'accélerateurs, et découvrir ainsi un nouveau principe auquel doivent satisfaire toutes les lois physiques, aussi fondamental que la relativité.

  14. TECHNICAL TRAINING SEMINAR - French version only

    CERN Multimedia

    2003-01-01

    Lundi 19 mai From 9:30 - 11:30 hrs - Training Centre Auditorium bât. 593, salle 11 PIPES 2003 - Introduction aux nouvelles méthodes de tuyauterie Michel Bosteels / CERN-ST-CV Depuis quelques années l'apparition de nouvelles méthodes de tuyauterie a changé radicalement leur conception, tant pour les applications industrielles que domestiques. Les utilisations au CERN concernent pratiquement tous les fluides, c'est-à-dire eau sanitaire, eau déminéralisée, air comprimé, fluorocarbones liquides ou gazeux, et tous les gaz, depuis l'hélium jusqu'au xénon. Ce séminaire de l'Enseignement Technique est adressé aux concepteurs et aux techniciens utilisant des tuyauteries de 2 mm jusqu'à 60 mm de diamètre: présentation des nouvelles techniques d'assemblage par sertissage sans soudure avec tubes en cuivre, inox et aluminium; applications, choix des raccords et calcul des diamètres pour tubes multicouches; utilisation du catalogue du magasin CERN. Langue: Français Séminaire libre, sans inscriptio...

  15. TECHNICAL TRAINING SEMINAR - French version only

    CERN Multimedia

    2003-01-01

    Lundi 19 mai From 9:30 - 11:30 hrs - Training Centre Auditorium bât. 593, salle 11 PIPES 2003 - Introduction aux nouvelles méthodes de tuyauterie Michel Bosteels / CERN-ST-CV Depuis quelques années l'apparition de nouvelles méthodes de tuyauterie a changé radicalement leur conception, tant pour les applications industrielles que domestiques. Les utilisations au CERN concernent pratiquement tous les fluides, c'est-à-dire eau sanitaire, eau déminéralisée, air comprimé, fluorocarbones liquides ou gazeux, et tous les gaz, depuis l'hélium jusqu'au xénon. Ce séminaire de l'Enseignement Technique est adressé aux concepteurs et aux techniciens utilisant des tuyauteries de 2 mm jusqu'à 60 mm de diamètre : présentation des nouvelles techniques d'assemblage par sertissage sans soudure avec tubes en cuivre, inox et aluminium ; applications, choix des raccords et calcul des diamètres pour tubes multicouches ; utilisation du catalogue du magasin CERN. Langue : Français Séminaire libre, sans inscr...

  16. Species accounts. Chapter 4

    Science.gov (United States)

    Margaret K. Trani; W. Mark Ford; Brian R., eds. Chapman

    2007-01-01

    Narrative accounts for each species are presented by several authors in a consistent format to convey specific information relative to that mammal. The orders are arranged phylogenetically; families and species are arranged alphabetically to facilitate finding a particular species.

  17. Nutritional status and specific leaf area of mahogany and tonka bean under two light environments Estado nutricional e área foliar específica de mogno e cumaru sob dois ambientes de luz

    Directory of Open Access Journals (Sweden)

    José Francisco de C. Gonçalves

    2005-01-01

    Full Text Available Studies on nutritional status and leaf traits were carried out in two tropical tree species Swietenia macrophylla King (mahogany and Dipetryx odorata Aubl. Willd. (tonka bean planted under contrasting light environments in Presidente Figueiredo-AM, Brazil. Leaves of S. macrophylla and D. odorata were collected in three year-old trees grown under full sunlight (about 2000 µmol m-2 s-1 and natural shade under a closed canopy of Balsa-wood plantation (Ochroma pyramidale Cav. Ex. Lam.Urb about 260 µmol m-2 s-1. The parameters analysed were leaf area (LA, leaf dry mass (LDM, specific leaf area (SLA and leaf nutrient contents. It was observed that, S. macrophylla leaves grown under full sunlight showed LA 35% lower than those grown under shade. In D. odorata leaves these differences in LA were not observed. In addition, it was observed that S. macrophylla shade leaves, for LDM, were 50% smaller than sun leaves, while in D. odorata, there differences were not observed. SLA in S. macrophylla presented that sun leaves were three times smaller than those grown under shade. In D. odorata, no differences were observed. Nutrient contents in S. macrophylla, regardless of their light environments, showed higher contents for P and Ca than those found in D. odorata. The N, K, Fe and Mn contents in S. macrophylla leaves decreased under shade. Finally, we suggest that the decreasing in leaf nutrient contents may have a negative influence on leaf growth. The results demonstrated that the tested hypothesis is true for leaf traits, which D. odorata, late-successional species, showed lower plasticity for leaf traits than Swietenia macrophylla, mid-successional species.Estudou-se a nutrição mineral e as características foliares de duas espécies arbóreas tropicais Switenia macrophylla King (mogno e Dipteryx odorata Aubl Willd (cumaru plantadas sob dois ambientes de luz em Presidente Figueiredo - AM, Brasil. Folhas de S. macrophylla e de D. odorata, com três anos

  18. Heterochromatin analysis in the fish species Liposarcus anisitsi (siluriformes and Leporinus elongatus (characiformes

    Directory of Open Access Journals (Sweden)

    Roberto Ferreira Artoni

    1999-03-01

    Full Text Available The chromosomes of two neotropical freshwater fish species, namely Liposarcus anisitsi (Siluriformes, Loricariidae and Leporinus elongatus (Characiformes, Anostomidae, were investigated by means of C-banding, Ag-NORs, fluorochrome staining and banding by hot saline solution (HSS treatment, to reveal patterns of heterochromatin differentiation. The karyotype of L. anisitsi is described for the first time. Staining with the GC-specific fluorescent antibiotic mithramycin (MM revealed bright signals in some C-banded blocks in both species, suggesting that these MM+ heterochromatin contains GC-rich DNA. Banding by denaturation employing HSS, followed by Giemsa staining, yielded corresponding results documenting the thermal stability of GC-rich DNA part of heterochromatin positive after C-banding. In L. elongatus the Ag-NOR also followed the above banding patterns. However, in L. anisitsi the Ag-NOR was MM+ but negatively stained after C-banding and HSS treatment. L. elongatus also showed C-banded segments that were negative for mithramycin staining and HSS treatment. The results obtained evidence the heterochromatin heterogeneity in these fish species.Cromossomos mitóticos de duas especies de peixes neotropicais, Leporinus elongatus (Characiformes e Liposarcus anisitsi (Siluriformes, foram estudados por diferentes métodos de bandamentos, com o intuito de investigar a diferenciação da heterocromatina. Enquanto que a macroestrutura cariotípica de L. elongatus já foi objeto de estudos anteriores, o cariótipo de L. anisitsi está sendo apresentado pela primeira vez. Em ambas as espécies, a coloração dos cromossomos com a mitramicina (MM, fluorocromo GC específico, evidenciou sinais brilhantes em alguns segmentos heterocromáticos também positivos ao bandamento C, sugerindo ser esta fração da heterocromatina rica em seqüências de bases GC. O tratamento dos cromossomos com solução salina aquecida e posterior coloração com Giemsa

  19. Genetic sorting of subordinate species in grassland modulated by intraspecific variation in dominant species.

    Directory of Open Access Journals (Sweden)

    Danny J Gustafson

    Full Text Available Genetic variation in a single species can have predictable and heritable effects on associated communities and ecosystem processes, however little is known about how genetic variation of a dominant species affects plant community assembly. We characterized the genetic structure of a dominant grass (Sorghastrum nutans and two subordinate species (Chamaecrista fasciculata, Silphium integrifolium, during the third growing season in grassland communities established with genetically distinct (cultivated varieties or local ecotypes seed sources of the dominant grasses. There were genetic differences between subordinate species growing in the cultivar versus local ecotype communities, indicating that intraspecific genetic variation in the dominant grasses affected the genetic composition of subordinate species during community assembly. A positive association between genetic diversity of S. nutans, C. fasciculata, and S. integrifolium and species diversity established the role of an intraspecific biotic filter during community assembly. Our results show that intraspecific variation in dominant species can significantly modulate the genetic composition of subordinate species.

  20. A synopsis of the South American Hydrovatus (Coleoptera: Dytiscidae: Hydroporinae, with notes on habitat and distribution, and a key to species Sinopsis de los Hydrovatus sudamericanos (Coleoptera: Dytiscidae: Hydroporinae, con notas sobre hábitat y distribución, y una clave para las especies

    Directory of Open Access Journals (Sweden)

    Edgardo R. Trémouilles

    2005-07-01

    Full Text Available We revised the South American members of the genus Hydrovatus Motschulsky. Each of the three recognized species is diagnosed, with emphasis on diagnostic characters. A key summarizing the main differences is provided. To identify South American specimens of H. caraibus Sharp, they were compared with Central American specimens, including type material. Based on the material examined, H. caraibus is a species broadly distributed in Central and South America, with representatives of different areas separated by minor differences. The geographical distributions of the three species are considerably enlarged: H. crassulus Sharp and H. turbinatus Zimmermann are recorded for the first time from Paraguay, and H. caraibus is recorded for the first time from Argentina and Nicaragua. Bionomical information of the species is presented.Se estudiaron los representantes sudamericanos del género Hydrovatus Motschulsky. Se diagnostica cada una de las tres especies conocidas, enfatizando el reconocimiento de caracteres valiosos para su identificación; las principales diferencias se resumen en una clave. Para identificar los ejemplares sudamericanos de H. caraibus Sharp, se los comparó con especímenes de América Central, incluyendo material tipo. En base al material examinado, H. caraibus se encuentra ampliamente distribuida en America Central y del Sur, con representantes de diferentes áreas separados por diferencias menores. Las distribuciones geográficas de las tres especies se amplían considerablemente: H. crassulus Sharp y H. turbinatus Zimmermann se citan por primera vez de Paraguay, y H. caraibus se cita por primera vez de Argentina y Nicaragua. Se presenta información bionómica de las especies.

  1. Biodiversity in the cyclic competition system of three species according to the emergence of mutant species

    Science.gov (United States)

    Park, Junpyo

    2018-05-01

    Understanding mechanisms which promote or hinder existing ecosystems are important issues in ecological sciences. In addition to fundamental interactions such as competition and migration among native species, existing ecosystems can be easily disturbed by external factors, and the emergence of new species may be an example in such cases. The new species which does not exist in a current ecosystem can be regarded as either alien species entered from outside or mutant species born by mutation in existing normal species. Recently, as existing ecosystems are getting influenced by various physical/chemical external factors, mutation due to anthropogenic and environmental factors can occur more frequently and is thus attracting much attention for the maintenance of ecosystems. In this paper, we consider emergences of mutant species among self-competing three species in the cyclic dominance. By defining mutation as the birth of mutant species, we investigate how mutant species can affect biodiversity in the existing ecosystem. Through microscopic and macroscopic approaches, we have found that the society of existing normal species can be disturbed by mutant species either the society is maintained accompanying with the coexistence of all species or jeopardized by occupying of mutant species. Due to the birth of mutant species, the existing society may be more complex by constituting two different groups of normal and mutant species, and our results can be contributed to analyze complex ecosystems of many species. We hope our findings may propose a new insight on mutation in cyclic competition systems of many species.

  2. Attempted integration of multiple species of turaco into a mixed-species aviary.

    Science.gov (United States)

    Valuska, Annie J; Leighty, Katherine A; Ferrie, Gina M; Nichols, Valerie D; Tybor, Cheryl L; Plassé, Chelle; Bettinger, Tamara L

    2013-03-01

    Mixed-species exhibits offer a variety of benefits but can be challenging to maintain due to difficulty in managing interspecific interactions. This is particularly true when little has been documented on the behavior of the species being mixed. This was the case when we attempted to house three species of turaco (family: Musophagidae) together with other species in a walk-through aviary. To learn more about the behavior of great blue turacos, violaceous turacos, and white-bellied gray go-away birds, we supplemented opportunistic keeper observations with systematic data collection on their behavior, location, distance from other birds, and visibility to visitors. Keepers reported high levels of aggression among turacos, usually initiated by a go-away bird or a violaceous turaco. Most aggression occurred during feedings or when pairs were defending nest sites. Attempts to reduce aggression by temporarily removing birds to holding areas and reintroducing them days later were ineffective. Systematic data collection revealed increased social behavior, including aggression, during breeding season in the violaceous turacos, as well as greater location fidelity. These behavioral cues may be useful in predicting breeding behavior in the future. Ultimately, we were only able to house three species of turaco together for a short time, and prohibitively high levels of conflict occurred when pairs were breeding. We conclude that mixing these three turaco species is challenging and may not be the most appropriate housing situation for them, particularly during breeding season. However, changes in turaco species composition, sex composition, or exhibit design may result in more compatible mixed-turaco species groups. © 2012 Wiley Periodicals, Inc.

  3. Developpement

    Directory of Open Access Journals (Sweden)

    Fok Michel

    2002-03-01

    Full Text Available Cette contribution souligne le fait que la plupart des innovations techniques ont bénéficié d’arrangements institutionnels adaptés qui ont favorisé l’adoption de pratiques techniques nouvelles. Elle met en exergue la nécessité de considérer conjointement les innovations techniques et institutionnelles pour aider à réaliser un gain de productivité qui permettrait de renforcer la place des pays cotonniers de l’Afrique de l’Ouest et du Centre dans le monde. Malgré leur intérêt, les nouvelles technologies ne constituent pas la réponse unique, comme ce serait le cas dans les pays économiquement développés, dans la conception de nouvelles techniques culturales pour ces pays africains. Ces techniques doivent d’abord être conformes aux contraintes des paysans, par exemple, en termes de limitation de main-d’œuvre ou de finance. Le comportement des petits paysans face à l’incertitude et la limitation de leurs moyens est brièvement étudié. Cette analyse permet de mettre en évidence les éléments de cahier des charges des nouvelles techniques destinées à soulager les contraintes des paysans. Des exemples de techniques possibles sont présentés. Des cas spécifiques d’interaction entre innovation technique et innovation institutionnelle sont examinés. La mise au point de techniques efficaces et adaptées exige un changement dans le financement et dans la réalisation de la recherche.

  4. Endangered Species Act

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The purpose of the Endangered Species Act (ESA) is to protect and recover imperiled species and the ecosystems upon which they depend. The U.S. Fish and Wildlife...

  5. Species diversity modulates predation

    NARCIS (Netherlands)

    Kratina, P.; Vos, M.; Anholt, B.R.

    2007-01-01

    Predation occurs in a context defined by both prey and non-prey species. At present it is largely unknown how species diversity in general, and species that are not included in a predator's diet in particular, modify predator–prey interactions.Therefore we studied how both the density and diversity

  6. Bangalore, ville des nouvelles technologies

    Directory of Open Access Journals (Sweden)

    Clarisse Didelon

    2003-06-01

    Full Text Available Bangalore est devenue la Silicon Valley de l’Inde. Une partie de ses habitants y vit à l’occidentale mais le reste de la population souffre de la croissance spectaculaire de la ville. Face à l’insuffisance des infrastructures, Bangalore devient de moins en moins attractive pour les entreprises internationales.

  7. Nouvelles mythologies : La GoPro

    OpenAIRE

    Tomasovic, Dick

    2015-01-01

    A la manière des mythologies de Roland Barthes, et à la demande de la rédaction du Focus Vif, une analyse des discours accompagnant la caméra "GoPro", mais aussi des pratiques audiovisuelles liées à cette caméra ultraportable ainsi qu'à l'esthétique et la circulation de ses images.

  8. Positive feedback in species communities

    NARCIS (Netherlands)

    Gerla, D.J.

    2012-01-01

    Sometimes the eventual population densities in a species community depend on the initial densities or the arrival times of species. If arrival times determine species composition, a priority effect has occurred. Priority effects may occur if the species community exhibits alternative stable states

  9. Transformation

    OpenAIRE

    Magnani, Eliana

    2012-01-01

    Avec le numéro 16, le Bucema inaugure une nouvelle formule éditoriale et de diffusion. Doté maintenant d’un comité de rédaction et d’un conseil scientifique, ayant mis en place une démarche d’évaluation des contributions, le Bucema devient une revue à comité de lecture consacrée aux études sur le Moyen Âge, tournée vers la communauté scientifique internationale. La nouvelle politique éditoriale de la revue, outre le souci d’exigence scientifique, met l’accent sur l’interdisciplinarité — scien...

  10. Word of mouth, word of mouse : la campagne des Travaillistes à l'heure des « premières élections numériques » en Grande-Bretagne

    OpenAIRE

    Avril , Emmanuelle

    2011-01-01

    International audience; Les élections de 2010 ont été décrites comme « les premières élections numériques en Grande-Bretagne ». L’évolution des nouvelles technologies et de leur usage par les partis politiques depuis les élections de 2005 est frappante. Il est donc très important de se demander quel a été le poids véritable des nouveaux médias dans la campagne et dans quelle mesure les nouvelles technologies ont pu susciter un renouvellement des pratiques de campagne. Le parti travailliste, c...

  11. Projet de conception d'un Espace multimédia à la Bibliothèque de la Ville de La Chaux-de-Fonds

    OpenAIRE

    Emmenegger, Isabelle; Schmutz, Thomas; Cotting, Patrick

    2017-01-01

    Cette étude a pour objectif de servir de base de travail pour la création et le développement d'un Espace multimédia à la Bibliothèque de la Ville de La Chaux-de-Fonds (BVCF). Elle décrit l'environnement général (contexte, état des lieux) des bibliothèques de lecture publique en Suisse et dans le monde, et aborde les problématiques des nouvelles technologies de l'information et de la communication (NTIC), des nouvelles pratiques de consommation de biens culturels audiovisuels ainsi que celles...

  12. No universal scale-dependent impacts of invasive species on native plant species richness.

    Science.gov (United States)

    Stohlgren, Thomas J; Rejmánek, Marcel

    2014-01-01

    A growing number of studies seeking generalizations about the impact of plant invasions compare heavily invaded sites to uninvaded sites. But does this approach warrant any generalizations? Using two large datasets from forests, grasslands and desert ecosystems across the conterminous United States, we show that (i) a continuum of invasion impacts exists in many biomes and (ii) many possible species-area relationships may emerge reflecting a wide range of patterns of co-occurrence of native and alien plant species. Our results contradict a smaller recent study by Powell et al. 2013 (Science 339, 316-318. (doi:10.1126/science.1226817)), who compared heavily invaded and uninvaded sites in three biomes and concluded that plant communities invaded by non-native plant species generally have lower local richness (intercepts of log species richness-log area regression lines) but steeper species accumulation with increasing area (slopes of the regression lines) than do uninvaded communities. We conclude that the impacts of plant invasions on plant species richness are not universal.

  13. Population genetics and cryptic species

    International Nuclear Information System (INIS)

    McPheron, Bruce A.

    2000-01-01

    Does the definition of a species matter for pest management purposes? Taxonomists provide us with tools - usually morphological characters - to identify a group of organisms that we call a species. The implication of this identification is that all of the individuals that fit the provided description are members of the species in question. The taxonomists have considered the range of variation among individuals in defining the species, but this variation is often forgotten when we take the concept of species to the level of management. Just as there is morphological variation among individuals, there is also variation in practically any character we might imagine, which has implications for the short and long term success of our management tactics. The rich literature on insecticide resistance should be a constant reminder of the fact that the pressure on pest survival and reproduction applied by our management approaches frequently leads to evolutionary changes within the pest species. The degree of variation within a particular species is a defining characteristic of that species. This level of variability may have very important implications for successful management, so it is very important to measure variation and, whenever possible, the genetic basis of that variation, in a target species. Population genetic approaches can provide evidence of genetic structure (or lack thereof) among populations of a species. These types of data can be used to discuss the movement of pest populations on a local or global scale. In other cases, we may have a complex of species that share some, but not all, characteristics. Species complexes that share morphological characters (i.e., cannot be easily distinguished) but not biological characters are referred to as sibling or cryptic species

  14. Diversidad genética intra e inter-específica de ñame (Dioscorea spp. de la región Caribe de Colombia mediante marcadores AFLP

    Directory of Open Access Journals (Sweden)

    Hernando Javier Rivera-Jiménez

    2011-12-01

    Full Text Available Conocer la variabilidad genética del ñame, Dioscorea spp., permite apoyar estrategias de mejoramiento y conservación de este recurso fitogenético. El objetivo de este estudio fue la caracterización molecular de 20 accesiones de Dioscorea spp. mediante la técnica molecular de AFLP para determinar cómo se distribuye la variabilidad genética de manera intra e inter-específica. Los datos fueron analizados mediante los métodos de agrupación de correspondencia múltiple y análisis de similaridad de Dice, estableciendo los niveles de confiabilidad de los grupos genéticos mediante remuestreos. En términos de diversidad interespecífica, los valores promedios de similitud variaron entre 41.81% entre D. alata L. y D. rotundata Poir., y 33.51% entre D. trifida L.f. y D. esculenta (Lour. Burkill, lo que sugiere alta diversidad genética entre las accesiones estudiadas, que formaron cuatro grupos genéticos: D. alata, D. rotundata, D. esculenta y D. trifida, confirmando correspondencia entre la caracterización morfológica, clasificación botánica y la caracterización molecular. En términos de diversidad intraespecífica para la especie D. alata, el análisis también reveló una composición heterogénea en la región Caribe colombiana. Estos estudios ayudarán a definir una estrategia adecuada para fines de conservación y apoyar los esfuerzos futuros en los programas de mejoramiento genético.

  15. Osteología craneal comparada de tres especies de lenguado del género Paralichthys (Pleuronectiformes, Paralichthyidae del Atlántico suroccidental Comparative cranial osteology of three species of the flatfish genus Paralichthys (Pleuronectiformes, Paralichthyidae from the southwestern Atlantic

    Directory of Open Access Journals (Sweden)

    JUAN M. DÍAZ DE ASTARLOA

    2005-09-01

    Full Text Available Se realiza un análisis osteológico comparativo del esqueleto craneal en Paralichthys isosceles, P. orbignyanus y P. patagonicus, tres especies de lenguados presentes en el Atlántico suroccidental. Se describen las características de los componentes óseos y se detallan las diferencias morfológicas y morfométricas encontradas, con el fin de aportar elementos diagnósticos para la identificación taxonómica de las tres especies de Paralichthys. Se utilizaron técnicas de desarticulación de esqueletos, tanto en ejemplares frescos congelados, como en especímenes conservados en líquidos fijadores. También fueron usadas técnicas de clareado y tinción diferencial para ejemplares de pequeño tamaño. Se observaron potenciales características diagnósticas para la discriminación de las especies en los huesos paretmoides derecho, lacrimal izquierdo, anguloarticular, mesopterigoides, los otolitos y el número de dientes del dentario. Se discuten las relaciones entre los huesos y se comparan sus características con las halladas en otras especies del género Paralichthys, en particular, y en otros Pleuronectiformes en generalAn osteological analysis of the cranial skeleton of the southwestern Atlantic flatfish species Paralichthys isosceles, P. orbignyanus and P. patagonicus was carried out based on comparative morphology and morphometrics of the bones. The objective was to provide osteological evidence of diagnostic value for a correct identification of the flatfish species. Methods for preparing disarticulated skeletons were used for both dissected fresh-frosen and alcohol-preserved specimens. Also methods of clearing and staining for bone and cartilage were applied for small fish specimens. Potentially diagnostic features were found to distinguish among species in the right parethmoid, left lachrymal, angulo-articular, mesopterygoid, the otoliths, and the number of dentary teeth. Relationships between bones are discussed and bone

  16. Une ecole elementaire nouvelle pour une societe nouvelle (New Elementary Schools for a New Society).

    Science.gov (United States)

    Pare, Andre; Pelletier, Louise

    1971-01-01

    This article, translated into Spanish from the French, discusses changes and increasing complications in society which call for educational reform and improvement. Elementary education, traditionally based on memory skills, should become the setting for the development of mental processes and intellectual skills through the activity of problem…

  17. Images de l’ennemi : Nouvelles et moins nouvelles figures du barbare et de la barbarie

    Directory of Open Access Journals (Sweden)

    Raphaël Villatte

    2013-01-01

    Full Text Available Africa is not only a continent forgotten by international concern, but also by popular fiction. Since Africa draws creators’ attention, it arouses phantasms and provokes both modern and colonial-mythological fiction that reflects each other, where new representations of enemy and barbarous can be found regardless time, genres or media.

  18. Extragastric Helicobacter species

    DEFF Research Database (Denmark)

    On, Stephen L.W.; Hynes, S.; Wadstrom, T.

    2002-01-01

    The genus Helicobacter has expanded at a rapid pace and no fewer than 31 species have been named since the proposal of the genus in 1989. Of these 31 species, 22 are principally associated with extragastric niches and there is increasing interest in the role of these taxa in diseases of humans...... and animals. Substantial evidence attests to certain species playing a role in the pathogenesis of enteric, hepatic and biliary disorders and some taxa demonstrate zoonotic potential. The importance of extragastric Helicobacters is likely to be an important topic for research in the near future. Here...

  19. Four new species of Pteromalus Swederus (Hymenoptera: Chalcidoidea: Pteromalidae) and redescriptions of three other species

    NARCIS (Netherlands)

    Gijswijt, M.J.

    1999-01-01

    A key to the European species of the Pteromalus altus group is presented. The relationship between this group and species of the genus Euphorbia (Euphorbiaceae) is confirmed. One new species: P. villosae, associated with Euphorbia villosa Waldst. & Kit.is presented. Two new species of the albipennis

  20. Fuzzy species among recombinogenic bacteria

    Directory of Open Access Journals (Sweden)

    Fraser Christophe

    2005-03-01

    Full Text Available Abstract Background It is a matter of ongoing debate whether a universal species concept is possible for bacteria. Indeed, it is not clear whether closely related isolates of bacteria typically form discrete genotypic clusters that can be assigned as species. The most challenging test of whether species can be clearly delineated is provided by analysis of large populations of closely-related, highly recombinogenic, bacteria that colonise the same body site. We have used concatenated sequences of seven house-keeping loci from 770 strains of 11 named Neisseria species, and phylogenetic trees, to investigate whether genotypic clusters can be resolved among these recombinogenic bacteria and, if so, the extent to which they correspond to named species. Results Alleles at individual loci were widely distributed among the named species but this distorting effect of recombination was largely buffered by using concatenated sequences, which resolved clusters corresponding to the three species most numerous in the sample, N. meningitidis, N. lactamica and N. gonorrhoeae. A few isolates arose from the branch that separated N. meningitidis from N. lactamica leading us to describe these species as 'fuzzy'. Conclusion A multilocus approach using large samples of closely related isolates delineates species even in the highly recombinogenic human Neisseria where individual loci are inadequate for the task. This approach should be applied by taxonomists to large samples of other groups of closely-related bacteria, and especially to those where species delineation has historically been difficult, to determine whether genotypic clusters can be delineated, and to guide the definition of species.

  1. Enolonium Species-Umpoled Enolates

    DEFF Research Database (Denmark)

    Arava, Shlomy; Kumar, Jayprakash N.; Maksymenko, Shimon

    2017-01-01

    Enolonium species/iodo(III) enolates of carbonyl compounds have been suggested to be intermediates in a wide variety of hypervalent iodine induced chemical transformations of ketones, including α-C-O, α-C-N, α-C-C, and alpha-carbon- halide bond formation, but they have never been characterized. We...... report that these elusive umpoled enolates may be made as discrete species that are stable for several minutes at-78 degrees C, and report the first spectroscopic identification of such species. It is shown that enolonium species are direct intermediates in C-O, C-N, C-Cl, and C-C bond forming reactions....... Our results open up chemical space for designing a variety of new transformations. We showcase the ability of enolonium species to react with prenyl, crotyl, cinnamyl, and allyl silanes with absolute regioselectivity in up to 92% yield....

  2. Two new species of the Phanaeus endymion species group (Coleoptera, Scarabaeidae, Scarabaeinae).

    Science.gov (United States)

    Moctezuma, Victor; Sánchez-Huerta, José Luis; Halffter, Gonzalo

    2017-01-01

    Phanaeus bravoensis sp. n. is described from the coniferous-oak forests in the state of Guerrero, and P. huichol sp. n. from coniferous-oak forests and cloud forests in Jalisco and Nayarit. The new species are closely related to P. halffterorum and P. zoque respectively. Morphological trait combination, geographic distribution, and trophic habits show important differences among the studied species. A distribution map and an updated key to separate the species are included.

  3. Bias correction in species distribution models: pooling survey and collection data for multiple species.

    Science.gov (United States)

    Fithian, William; Elith, Jane; Hastie, Trevor; Keith, David A

    2015-04-01

    Presence-only records may provide data on the distributions of rare species, but commonly suffer from large, unknown biases due to their typically haphazard collection schemes. Presence-absence or count data collected in systematic, planned surveys are more reliable but typically less abundant.We proposed a probabilistic model to allow for joint analysis of presence-only and survey data to exploit their complementary strengths. Our method pools presence-only and presence-absence data for many species and maximizes a joint likelihood, simultaneously estimating and adjusting for the sampling bias affecting the presence-only data. By assuming that the sampling bias is the same for all species, we can borrow strength across species to efficiently estimate the bias and improve our inference from presence-only data.We evaluate our model's performance on data for 36 eucalypt species in south-eastern Australia. We find that presence-only records exhibit a strong sampling bias towards the coast and towards Sydney, the largest city. Our data-pooling technique substantially improves the out-of-sample predictive performance of our model when the amount of available presence-absence data for a given species is scarceIf we have only presence-only data and no presence-absence data for a given species, but both types of data for several other species that suffer from the same spatial sampling bias, then our method can obtain an unbiased estimate of the first species' geographic range.

  4. Redescription of four species of Mehdiella from Testudinidae, with a key to the species and discussion on the relationships among the species of this genus

    Directory of Open Access Journals (Sweden)

    Bouamer S.

    2003-12-01

    Full Text Available Four species of the genus Mehdiella Seurat, 1918 are redescribed: M. cristata Petter, 1966 and M. stylosa dollfusi Petter, 1966, parasite of Pyxix arachnoides Bell, 1827 from Madagascar, M. s. stylosa (Thapar, 1 925 and M. uncinata (Drasche, 1884, parasite of Testudo graeca Linneaus, 1758, Testudo hermanni Gmelin, 1789 and Testudo horsfieldii (Gray, 1844 from Palaearctic region. Light microscopy and scanning electron microscopy (SEM studies revealed new informations on the morphology of these species. On the basis of this morphological study, the sub-species Mehdiella stylosa dollfusi and M. s. stylosa are raised to level of species. The position of Mehdiella cristata among the species of the genus Mehdiella and the relationships among the species of the genus Mehdiella are discussed. A key to the eight valid species Mehdiella is given.

  5. Redescription of four species of Mehdiella from Testudinidae, with a key to the species and discussion on the relationships among the species of this genus.

    Science.gov (United States)

    Bouamer, S; Morand, S; Kara, M

    2003-12-01

    Four species of the genus Mehdiella Seurat, 1918 are redescribed: M. cristata Petter, 1966 and M. stylosa dollfusi Petter, 1966, parasite of Pyxix arachnoides Bell, 1827 from Madagascar, M. s. stylosa (Thapar, 1925) and M. uncinata (Drasche, 1884), parasite of Testudo graeca Linneaus, 1758, Testudo hermanni Gmelin, 1789 and Testudo horsfieldii (Gray, 1844) from Palaearctic region. Light microscopy and scanning electron microscopy (SEM) studies revealed new informations on the morphology of these species. On the basis of this morphological study, the sub-species Mehdiella stylosa dollfusi and M. s. stylosa are raised to level of species. The position of Mehdiella cristata among the species of the genus Mehdiella and the relationships among the species of the genus Mehdiella are discussed. A key to the eight valid species Mehdiella is given.

  6. Species composition and abundance of Brevipalpus spp. on different citrus species in Mexican orchards.

    Science.gov (United States)

    Salinas-Vargas, D; Santillán-Galicia, M T; Valdez-Carrasco, J; Mora-Aguilera, G; Atanacio-Serrano, Y; Romero-Pescador, P

    2013-08-01

    We studied the abundance of Brevipalpus spp. in citrus orchards in the Mexican states of Yucatan, Quintana Roo and Campeche. Mites were collected from 100 trees containing a mixture of citrus species where sweet orange was always the main species. Eight collections were made at each location from February 2010 to February 2011. Mites from the genus Brevipalpus were separated from other mites surveyed and their abundance and relationships with the different citrus species were quantified throughout the collection period. A subsample of 25% of the total Brevipalpus mites collected were identified to species level and the interaction of mite species and citrus species were described. Brevipalpus spp. were present on all collection dates and their relative abundance was similar on all citrus species studies. The smallest number of mites collected was during the rainy season. Brevipalpus phoenicis (Geijskes) and Brevipalpus californicus (Banks) were the only two species present and they were found in all locations except Campeche, where only B. phoenicis was present. Yucatan and Campeche are at greater risk of leprosis virus transmission than Quintana Roo because the main vector, B. phoenicis, was more abundant than B. californicus. The implications of our results for the design of more accurate sampling and control methods for Brevipalpus spp. are discussed.

  7. Presença de auto-anticorpos não-tireóide-específicos no soro de pacientes com hipotireoidismo auto-imune Presence of nonthyroid-specific autoantibodies in autoimmune hypothyroidism

    Directory of Open Access Journals (Sweden)

    Débora Vieira Soares

    2003-01-01

    Full Text Available Auto-anticorpos contra componentes não-específicos da tireóide foram encontrados no soro de pacientes com doença auto-imune da tireóide. Neste estudo avaliamos a presença de auto-anticorpos antinucleares (ANA, antimúsculo liso (anti-ML e antimitocôndria (anti-Mc no soro de pacientes com hipotireoidismo auto-imune (HA, comparando-os a controles saudáveis. Estudamos 70 pacientes com hipotireoidismo auto-imune (tireoidite de Hashimoto ou tireoidite atrófica e 70 controles saudáveis (sem diagnóstico de doença auto-imune e tireoidiana, todos do sexo feminino, com média de idade de 50,2 anos (+ 15,9 e 49,6 anos (+ 14,4, respectivamente. O ANA, detectado através do sistema Inno-LIA™ ANA (Innogenetics, Bélgica, foi positivo em 26% dos pacientes com HA e em 14% dos controles, não sendo esta diferença significativa (p = 0,09. Não houve diferença entre tempo de doença ou idade entre os grupos ANA positivo ou negativo. Anticorpos anti-ML e anti-Mc foram negativos em todas as amostras, sendo analisados através de imunofluorescência indireta. Concluímos que pacientes com hipotireoidismo auto-imune não apresentaram maior incidência de auto-anticorpos não-específicos para tireóide do que controles saudáveis. Ressaltamos, contudo, que a associação entre doenças auto-imunes da tireóide e outras doenças auto-imunes é fato incontestável, podendo ocorrer em qualquer período no curso de sua evolução. Portanto avaliações regulares são recomendadas.Autoantibodies against nonthyroid-specific components were detected in sera of patients with autoimmune thyroid disease. In this study we investigated the presence of the antinuclear antibody (ANA, antismooth muscle antibody (anti-SM and antimitochondrial antibody (anti-Mc in the sera of patients with autoimmune hypothyroidism comparing them to a control group. We studied 70 patients with autoimmune hypothyroidism (Hashimoto's or atrophic thyroiditis and 70 healthy controls

  8. Insular species swarm goes underground

    DEFF Research Database (Denmark)

    P. S. Reboleira, Ana Sofia; Enghoff, Henrik

    2014-01-01

    Two new species of the genus Cylindroiulus Verhoeff, 1894, C. julesvernei and C. oromii, are described from the subterranean ecosystem of Madeira Island, Portugal. Species are illustrated with photographs and diagrammatic drawings. The new species belong to the Cylindroiulus madeirae......-group, an insular species swarm distributed in the archipelagos of Madeira and the Canary Islands. We discuss the differences between the new species and their relatives and present information on the subterranean environment of Madeira. An updated overview of the subterranean biodiversity of millipedes...

  9. Effects of 'target' plant species body size on neighbourhood species richness and composition in old-field vegetation.

    Directory of Open Access Journals (Sweden)

    Brandon S Schamp

    Full Text Available Competition is generally regarded as an important force in organizing the structure of vegetation, and evidence from several experimental studies of species mixtures suggests that larger mature plant size elicits a competitive advantage. However, these findings are at odds with the fact that large and small plant species generally coexist, and relatively smaller species are more common in virtually all plant communities. Here, we use replicates of ten relatively large old-field plant species to explore the competitive impact of target individual size on their surrounding neighbourhoods compared to nearby neighbourhoods of the same size that are not centred by a large target individual. While target individuals of the largest of our test species, Centaurea jacea L., had a strong impact on neighbouring species, in general, target species size was a weak predictor of the number of other resident species growing within its immediate neighbourhood, as well as the number of resident species that were reproductive. Thus, the presence of a large competitor did not restrict the ability of neighbouring species to reproduce. Lastly, target species size did not have any impact on the species size structure of neighbouring species; i.e. they did not restrict smaller, supposedly poorer competitors, from growing and reproducing close by. Taken together, these results provide no support for a size-advantage in competition restricting local species richness or the ability of small species to coexist and successfully reproduce in the immediate neighbourhood of a large species.

  10. Architecture and urban landscape as a Specific Globalization / Arquitectura y paisaje urbano como globalización específica

    Directory of Open Access Journals (Sweden)

    Nikola Carevic

    2012-09-01

    de la esencia de la arquitectura. Para dar una respuesta, emerge el fenómeno de la “Globalización Específica” que se articula cuando varios proyectos arquitectónicos, son construidos por varios arquitectos, en el mismo espacio y al mismo tiempo simultáneamente, estableciendo relaciones mutuas entre sí y con el contexto socio–físico general; con el objetivo de crear un conjunto urbano contextual que refuerce la identidad de la ciudad. Esta globalización busca su especificidad en la manera de colocarse y adecuarse a cada lugar distinto en el nivel local, allí donde las ciudades globales pierden su interés, actúa y empieza a dotarse de contenido.

  11. Community structure informs species geographic distributions

    KAUST Repository

    Montesinos-Navarro, Alicia

    2018-05-23

    Understanding what determines species\\' geographic distributions is crucial for assessing global change threats to biodiversity. Measuring limits on distributions is usually, and necessarily, done with data at large geographic extents and coarse spatial resolution. However, survival of individuals is determined by processes that happen at small spatial scales. The relative abundance of coexisting species (i.e. \\'community structure\\') reflects assembly processes occurring at small scales, and are often available for relatively extensive areas, so could be useful for explaining species distributions. We demonstrate that Bayesian Network Inference (BNI) can overcome several challenges to including community structure into studies of species distributions, despite having been little used to date. We hypothesized that the relative abundance of coexisting species can improve predictions of species distributions. In 1570 assemblages of 68 Mediterranean woody plant species we used BNI to incorporate community structure into Species Distribution Models (SDMs), alongside environmental information. Information on species associations improved SDM predictions of community structure and species distributions moderately, though for some habitat specialists the deviance explained increased by up to 15%. We demonstrate that most species associations (95%) were positive and occurred between species with ecologically similar traits. This suggests that SDM improvement could be because species co-occurrences are a proxy for local ecological processes. Our study shows that Bayesian Networks, when interpreted carefully, can be used to include local conditions into measurements of species\\' large-scale distributions, and this information can improve the predictions of species distributions.

  12. Blood carbonyl protein measurement as a specific oxidative stress biomarker after intestinal reperfusion in rats Dosagem da proteína carbonilada sanguínea como biomarcador específico do estresse oxidativo após reperfusão intestinal em ratos

    Directory of Open Access Journals (Sweden)

    Márcio José Jamel

    2010-02-01

    Full Text Available PURPOSE: An experimental study was performed to investigate the use of protein carbonyl group as a specific biological marker for oxidative stress in a rat model of intestinal ischaemia-reperfusion. METHODS: Twenty four male Wistar rats were randomly distributed into three groups with eight animals each: Group 1 - Control group; Group 2 - Sham; Group 3 - Intestinal ischaemia by clamping ileal branches of the superior mesenteric artery for one hour, followed by another hour of reperfusion. Blood samples were taken in order to analyze the protein carbonyl level by Slot blotting assay. RESULTS: In group 3 a significant increase of protein carbonyl level was observed if compared to the homogenous levels of groups 1 and 2. CONCLUSION: From the results it may be concluded that the protein carbonylation may be used as a specific marker for measuring oxidative stress in rat intestinal reperfusion model.OBJETIVO: Realizou-se um estudo experimental com a finalidade de investigar o uso da proteína carbonilada como um marcador biológico específico do estresse oxidativo em um modelo de isquemia e reperfusão intestinal, em ratos. MÉTODOS: Vinte e quarto ratos da linhagem Wistar, machos foram distribuídos, aleatoriamente, em três grupos compostos por oito animais cada: Grupo 1 - Controle; Grupo 2 - Simulação e Grupo 3 - Submetido à isquemia, mediante clampeamento de ramos ileais da artéria mesentérica superior por uma hora, seguida de reperfusão, por igual período. Amostras sanguíneas obtidas foram utilizadas para analise dos níveis de proteína carbonilada, através do método Slot blotting. RESULTADOS: No grupo 3 houve uma elevação significante da concentração de proteína carbonilada sérica se comparada aos níveis sanguíneos homogêneos encontrados nos grupos 1 e 2. CONCLUSÃO: Fundamentado nos resultados é possível concluir que, a carbonilação protéica pode ser utilizada como um marcador específico para a mensuração do

  13. Introduced species as evolutionary traps

    Science.gov (United States)

    Schlaepfer, Martin A.; Sherman, P.W.; Blossey, B.; Runge, M.C.

    2005-01-01

    Invasive species can alter environments in such a way that normal behavioural decision-making rules of native species are no longer adaptive. The evolutionary trap concept provides a useful framework for predicting and managing the impact of harmful invasive species. We discuss how native species can respond to changes in their selective regime via evolution or learning. We also propose novel management strategies to promote the long-term co-existence of native and introduced species in cases where the eradication of the latter is either economically or biologically unrealistic.

  14. Why some plant species are rare.

    Science.gov (United States)

    Wieger Wamelink, G W; Wamelink, G W Weiger; Goedhart, Paul W; Frissel, Joep; Frissel, Josep Y

    2014-01-01

    Biodiversity, including plant species diversity, is threatened worldwide as a result of anthropogenic pressures such as an increase of pollutants and climate change. Rare species in particular are on the verge of becoming extinct. It is still unclear as to why some plant species are rare and others are not. Are they rare due to: intrinsic reasons, dispersal capacity, the effects of management or abiotic circumstances? Habitat preference of rare plant species may play an important role in determining why some species are rare. Based on an extensive data set of soil parameters we investigated if rarity is due to a narrow habitat preference for abiotic soil parameters. For 23 different abiotic soil parameters, of which the most influential were groundwater-table, soil-pH and nutrient-contents, we estimated species responses for common and rare species. Based on the responses per species we calculated the range of occurrence, the range between the 5 and 95 percentile of the response curve giving the habitat preference. Subsequently, we calculated the average response range for common and rare species. In addition, we designed a new graphic in order to provide a better means for presentation of the results. The habitat preferences of rare species for abiotic soil conditions are significantly narrower than for common species. Twenty of the twenty-three abiotic parameters showed on average significantly narrower habitat preferences for rare species than for common species; none of the abiotic parameters showed on average a narrower habitat preference for common species. The results have major implications for the conservation of rare plant species; accordingly management and nature development should be focussed on the maintenance and creation of a broad range of environmental conditions, so that the requirements of rare species are met. The conservation of (abiotic) gradients within ecosystems is particularly important for preserving rare species.

  15. Species associations in a species-rich subtropical forest were not well-explained by stochastic geometry of biodiversity.

    Science.gov (United States)

    Wang, Qinggang; Bao, Dachuan; Guo, Yili; Lu, Junmeng; Lu, Zhijun; Xu, Yaozhan; Zhang, Kuihan; Liu, Haibo; Meng, Hongjie; Jiang, Mingxi; Qiao, Xiujuan; Huang, Handong

    2014-01-01

    The stochastic dilution hypothesis has been proposed to explain species coexistence in species-rich communities. The relative importance of the stochastic dilution effects with respect to other effects such as competition and habitat filtering required to be tested. In this study, using data from a 25-ha species-rich subtropical forest plot with a strong topographic structure at Badagongshan in central China, we analyzed overall species associations and fine-scale species interactions between 2,550 species pairs. The result showed that: (1) the proportion of segregation in overall species association analysis at 2 m neighborhood in this plot followed the prediction of the stochastic dilution hypothesis that segregations should decrease with species richness but that at 10 m neighborhood was higher than the prediction. (2) The proportion of no association type was lower than the expectation of stochastic dilution hypothesis. (3) Fine-scale species interaction analyses using Heterogeneous Poisson processes as null models revealed a high proportion (47%) of significant species effects. However, the assumption of separation of scale of this method was not fully met in this plot with a strong fine-scale topographic structure. We also found that for species within the same families, fine-scale positive species interactions occurred more frequently and negative ones occurred less frequently than expected by chance. These results suggested effects of environmental filtering other than species interaction in this forest. (4) We also found that arbor species showed a much higher proportion of significant fine-scale species interactions (66%) than shrub species (18%). We concluded that the stochastic dilution hypothesis only be partly supported and environmental filtering left discernible spatial signals in the spatial associations between species in this species-rich subtropical forest with a strong topographic structure.

  16. Species associations in a species-rich subtropical forest were not well-explained by stochastic geometry of biodiversity.

    Directory of Open Access Journals (Sweden)

    Qinggang Wang

    Full Text Available The stochastic dilution hypothesis has been proposed to explain species coexistence in species-rich communities. The relative importance of the stochastic dilution effects with respect to other effects such as competition and habitat filtering required to be tested. In this study, using data from a 25-ha species-rich subtropical forest plot with a strong topographic structure at Badagongshan in central China, we analyzed overall species associations and fine-scale species interactions between 2,550 species pairs. The result showed that: (1 the proportion of segregation in overall species association analysis at 2 m neighborhood in this plot followed the prediction of the stochastic dilution hypothesis that segregations should decrease with species richness but that at 10 m neighborhood was higher than the prediction. (2 The proportion of no association type was lower than the expectation of stochastic dilution hypothesis. (3 Fine-scale species interaction analyses using Heterogeneous Poisson processes as null models revealed a high proportion (47% of significant species effects. However, the assumption of separation of scale of this method was not fully met in this plot with a strong fine-scale topographic structure. We also found that for species within the same families, fine-scale positive species interactions occurred more frequently and negative ones occurred less frequently than expected by chance. These results suggested effects of environmental filtering other than species interaction in this forest. (4 We also found that arbor species showed a much higher proportion of significant fine-scale species interactions (66% than shrub species (18%. We concluded that the stochastic dilution hypothesis only be partly supported and environmental filtering left discernible spatial signals in the spatial associations between species in this species-rich subtropical forest with a strong topographic structure.

  17. Cross-species amplification of 105 Lolium perenne SSR loci in 23 species within the Poaceae

    DEFF Research Database (Denmark)

    Jensen, Louise Bach; Holm, Preben Bach; Lübberstedt, Thomas

    2007-01-01

    Amplification of 105 Lolium perenne SSR markers was studied in 23 grass species representing seven tribes from three subfamilies of Poaceae. Twelve of the SSR markers are published for the first time. Between 2% and 96% of the SSR markers could be amplified within a given species. A subset of eight...... SSR markers was evaluated for polymorphism across nine of the 23 grass species. Four to seven of the markers were polymorphic within each species, with an average detection of 2.4 alleles per species....

  18. Seminar on the news energy utilization in rural area of April 3 to March 24 , 1980 in Reo, Upper Volta[Energie renouvelable ; Zone rurale ; Gaz biologique ; Energie solaire ; Sechoir solaire]; Seminaire sur l'utilisation des energies nouvelles en zone rurale du 24 mars au3 avril 1980 a Reo, Haute Volta

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1980-04-15

    volume of transport much more reduced. Mastering these new technologies will help fight efficiently against desertification, and fruits and vegetables rotting. [French] L'acces a l'energie par toutes les populations reste une des preoccupations du Gouvernement de Haute Volta (Burkina Faso). C'est ainsi que sous l'egide de la Communaute Economique de l Afrique de l'Ouest (CEAO), de l'Agence Canadienne de Developpement International et du Mouvement Scout, un seminaire sur l'utilisation des energies renouvelables en zone rurale y a ete organise. Il s'agit pour les participants venus de plusieurs pays, d'apprendre a mettre en pratique, l'utilisation des energies nouvelles telles la cuisiniere a feu ferme, le gaz biologique, le chauffe- eau solaire et le sechoir solaire. L'adoption de ces nouvelles sources d'energie par les populations permettrait de pallier les problemes de desertification lies au deboisement intensif dans le pays. Tous les participants a cette rencontre sont donc sensibilises pour qu'ils apportent leur contribution et celle des populations de leurs terroirs respectifs pour une meilleure conservation des ressources naturelles disponibles. Cela passe aussi par la construction de cuisinieres a feu ferme qui permettent d'avoir deux sources d'energie. Ce type de foyer est d'une construction facile et utilisable seulement trois jours apres. Il permet d'eviter la perte d'energie qui caracterisait le foyer traditionnel (pres de 95% de perte d'energie) ; ce qui revient a consommer moins de bois tout en assurant un rendement de l'ordre de 60 a 70%. Il s'est agi pour les participants aux travaux de s'initier a l'installation de gaz suivant des modeles chinois et indien . Ils ont donc ete inities a la realisation des technologies de production de gaz biologique a travers la maitrise du schema de principe du procede de fermentation discontinue. De meme, ils ont acquis le savoir- faire sur les techniques de mise en place du chauffe- eau solaire par insolateur et du

  19. New species of Moenkhausia Eigenmann, 1903 (Characiformes: Characidae with comments on the Moenkhausia oligolepis species complex

    Directory of Open Access Journals (Sweden)

    Ricardo C. Benine

    Full Text Available A new species of Moenkhausia is described from tributaries of the rio Paraguay, Brazil. The new species is diagnosed from congeners by characters related to body coloration, the number of lateral line scales, the degree of poring of the lateral line, and number of scales rows above and below the lateral line. Molecular analyses using partial sequences of the mitochondrial gene Cytochrome Oxidase I from specimens of the new species and specimens belonging to morphologically similar species demonstrated that the new species is easily differentiated by their high genetic distance and by their position in the phylogenetic hypothesis obtained through the Maximum Parsimony methodology. The analyses of three samples of M. oligolepis also revealed that they have high genetic distances and belong to different monophyletic groups suggesting that this species corresponds to a species complex rather than a single species.

  20. Previously unknown species of Aspergillus.

    Science.gov (United States)

    Gautier, M; Normand, A-C; Ranque, S

    2016-08-01

    The use of multi-locus DNA sequence analysis has led to the description of previously unknown 'cryptic' Aspergillus species, whereas classical morphology-based identification of Aspergillus remains limited to the section or species-complex level. The current literature highlights two main features concerning these 'cryptic' Aspergillus species. First, the prevalence of such species in clinical samples is relatively high compared with emergent filamentous fungal taxa such as Mucorales, Scedosporium or Fusarium. Second, it is clearly important to identify these species in the clinical laboratory because of the high frequency of antifungal drug-resistant isolates of such Aspergillus species. Matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS) has recently been shown to enable the identification of filamentous fungi with an accuracy similar to that of DNA sequence-based methods. As MALDI-TOF MS is well suited to the routine clinical laboratory workflow, it facilitates the identification of these 'cryptic' Aspergillus species at the routine mycology bench. The rapid establishment of enhanced filamentous fungi identification facilities will lead to a better understanding of the epidemiology and clinical importance of these emerging Aspergillus species. Based on routine MALDI-TOF MS-based identification results, we provide original insights into the key interpretation issues of a positive Aspergillus culture from a clinical sample. Which ubiquitous species that are frequently isolated from air samples are rarely involved in human invasive disease? Can both the species and the type of biological sample indicate Aspergillus carriage, colonization or infection in a patient? Highly accurate routine filamentous fungi identification is central to enhance the understanding of these previously unknown Aspergillus species, with a vital impact on further improved patient care. Copyright © 2016 European Society of Clinical Microbiology and

  1. Revision of the western Palaearctic species of Aleiodes Wesmael (Hymenoptera, Braconidae, Rogadinae. Part 1: Introduction, key to species groups, outlying distinctive species, and revisionary notes on some further species

    Directory of Open Access Journals (Sweden)

    Cornelis van Achterberg

    2016-12-01

    Full Text Available Seven new species of the genus Aleiodes Wesmael, 1838 (Braconidae: Rogadinae are described and illustrated: A. abraxanae sp. n., A. angustipterus sp. n., A. artesiariae sp. n., A. carminatus sp. n., A. diarsianae sp. n., A. leptofemur sp. n., and A. ryrholmi sp. n. A neotype is designated for each of Aleiodes circumscriptus (Nees, 1834 and A. pictus (Herrich-Schäffer, 1838, and both species are redescribed and illustrated. Aleiodes ochraceus Hellén, 1927 (not A. ochraceus (Curtis, 1834 is renamed as A. curticornis nom. n. & stat. rev., and redescribed and illustrated. Aleiodes bistrigatus Roman, 1917, A. nigriceps Wesmael, 1838, and A. reticulatus (Noskiewicz, 1956, are re-instated as valid species. A lectotype is designated for Aleiodes bistrigatus Roman. An illustrated key is given to some distinctive species and the residual species groups along which further parts of an entire revision of western Palaearctic species of Aleiodes and Heterogamus will be organised. Biology, host associations and phenology are discussed for the keyed species (in addition to the above, A. albitibia (Herrich-Schäffer, 1838, A. apiculatus (Fahringer, 1932, A. arcticus (Thomson, 1892, A. cantherius (Lyle, 1919, A. esenbeckii (Hartig, 1834, A. jakowlewi (Kokujev, 1898, A. modestus (Reinhard, 1863, A. nigricornis Wesmael, 1838, A. pallidator (Thunberg, 1822, A. praetor (Reinhard, 1863, A. seriatus (Herrich- Schäffer, 1838 sensu lato, A. testaceus (Telenga, 1941, A. ungularis (Thomson, 1892, and A. varius (Herrich-Schäffer, 1838 which are dealt with in full here (with the exception of A. seriatus s.l. which is, however, included in the key. The experimental methodology covering the revision as a whole, which involves some behavioural investigation, is outlined.

  2. Species coextinctions and the biodiversity crisis.

    Science.gov (United States)

    Koh, Lian Pin; Dunn, Robert R; Sodhi, Navjot S; Colwell, Robert K; Proctor, Heather C; Smith, Vincent S

    2004-09-10

    To assess the coextinction of species (the loss of a species upon the loss of another), we present a probabilistic model, scaled with empirical data. The model examines the relationship between coextinction levels (proportion of species extinct) of affiliates and their hosts across a wide range of coevolved interspecific systems: pollinating Ficus wasps and Ficus, parasites and their hosts, butterflies and their larval host plants, and ant butterflies and their host ants. Applying a nomographic method based on mean host specificity (number of host species per affiliate species), we estimate that 6300 affiliate species are "coendangered" with host species currently listed as endangered. Current extinction estimates need to be recalibrated by taking species coextinctions into account.

  3. Reproductive Impacts of Endocrine-Disrupting Chemicals on Wildlife Species: Implications for Conservation of Endangered Species.

    Science.gov (United States)

    Tubbs, Christopher W; McDonough, Caitlin E

    2018-02-15

    Wildlife have proven valuable to our understanding of the potential effects of endocrine-disrupting chemicals (EDCs) on human health by contributing considerably to our understanding of the mechanisms and consequences of EDC exposure. But the threats EDCs present to populations of wildlife species themselves are significant, particularly for endangered species whose existence is vulnerable to any reproductive perturbation. However, few studies address the threats EDCs pose to endangered species owing to challenges associated with their study. Here, we highlight those barriers and review the available literature concerning EDC effects on endangered species. Drawing from other investigations into nonthreatened wildlife species, we highlight opportunities for new approaches to advance our understanding and potentially mitigate the effects of EDCs on endangered species to enhance their fertility.

  4. Ecological impacts of non-native species

    Science.gov (United States)

    Wilkinson, John W.

    2012-01-01

    Non-native species are considered one of the greatest threats to freshwater biodiversity worldwide (Drake et al. 1989; Allen and Flecker 1993; Dudgeon et al. 2005). Some of the first hypotheses proposed to explain global patterns of amphibian declines included the effects of non-native species (Barinaga 1990; Blaustein and Wake 1990; Wake and Morowitz 1991). Evidence for the impact of non-native species on amphibians stems (1) from correlative research that relates the distribution or abundance of a species to that of a putative non-native species, and (2) from experimental tests of the effects of a non-native species on survival, growth, development or behaviour of a target species (Kats and Ferrer 2003). Over the past two decades, research on the effects of non-native species on amphibians has mostly focused on introduced aquatic predators, particularly fish. Recent research has shifted to more complex ecological relationships such as influences of sub-lethal stressors (e.g. contaminants) on the effects of non-native species (Linder et al. 2003; Sih et al. 2004), non-native species as vectors of disease (Daszak et al. 2004; Garner et al. 2006), hybridization between non-natives and native congeners (Riley et al. 2003; Storfer et al. 2004), and the alteration of food-webs by non-native species (Nystrom et al. 2001). Other research has examined the interaction of non-native species in terms of facilitation (i.e. one non-native enabling another to become established or spread) or the synergistic effects of multiple non-native species on native amphibians, the so-called invasional meltdown hypothesis (Simerloff and Von Holle 1999). Although there is evidence that some non-native species may interact (Ricciardi 2001), there has yet to be convincing evidence that such interactions have led to an accelerated increase in the number of non-native species and cumulative impacts are still uncertain (Simberloff 2006). Applied research on the control, eradication, and

  5. Inexistência de diferenças de sexo no fator g (inteligência geral e nas habilidades específicas em crianças de duas capitais brasileiras There are no sex differences on g factor and specific abilities in children from two Brazilian capitals

    Directory of Open Access Journals (Sweden)

    Carmen E. Flores-Mendoza

    2007-01-01

    Full Text Available O presente trabalho pretendeu examinar diferenças relacionadas ao sexo no fator g (inteligência geral e em habilidades específicas em crianças de duas cidades brasileiras: Belo Horizonte e Porto Alegre. No caso da amostra mineira (n=1,316, a idade compreendeu entre 5 e 11 anos de idade examinada através de uma bateria de testes a qual incluiu instrumentos de inteligência (Raven, Escala Verbal WISC III, R-2, DFH, de avaliação psicomotora (Bender e de desempenho escolar (TDE. No caso da amostra gaúcha (n=779, a idade compreendeu entre 5 e 11 anos, utilizando-se o teste Raven - Escala Colorida. A análise individual dos testes aponta que a maioria das diferenças nas habilidades específicas não é estatisticamente significativa. Na utilização do Método dos Vetores Correlacionados, uma análise mais sofisticada da inteligência geral, observa-se inexistência de diferenças de sexo. Tais resultados corroboram os registros internacionais sobre inexistência de diferenças cognitivas relacionadas ao sexo em crianças e adolescentes.This paper intended to verify sex differences on the g factor (general intelligence and specific abilities from a sample of children from two Brazilian cities: Belo Horizonte (BH and Porto Alegre (PA. The sample from BH (n=1.316 aged 5 to 11 years was examined with a battery of intelligence (CPM, Verbal Scale of WISC-III, R-2, psychomotor (Bender and school achievement tests. The sample from PA (n=779 aged 5 to 11 years was examined with Matrices Progressives Raven. The analysis from these tests shows that the majority of sex differences on specific abilities are not statistically significant. The use of Method Correlated Vectors, which is a most sophisticated method of analyzing general intelligence (g factor, indicates that there are no sex differences. These results support the international records about non-existence of cognitive difference relate to sex in childhood and adolescence.

  6. Mitochondrial DNA polymorphism and heteroplasmy in populations of the three species of Tropidurus of the nanuzae group (Squamata, Tropiduridae

    Directory of Open Access Journals (Sweden)

    José Carlos Passoni

    2000-06-01

    Full Text Available The nanuzae group of lizards includes three species, Tropidurus nanuzae, T. divaricatus and T. amathites. The first species is found along Serra do Espinhaço, in eastern Brazil, and the other two in the northern region of the Brazilian State of Bahia, in continental dunes on both margins of the São Francisco River. Restriction fragment length polymorphisms (RFLP of the mtDNA in these species were detected in 53 restriction sites. Site and fragment length polymorphisms were characterized, and cases of heteroplasmy involving length variation were observed. In T. divaricatus, these variations involved changes of 50-200 bp, probably in the control region of the molecule. In T. amathites, variation was apparently due to duplication/deletion of a 400-bp segment. Fragment length mutation rate varied among the species, being smaller in T. amathites than in T. divaricatus. Relatively low nucleotide diversity values were detected in these populations, the smallest being found in T. nanuzae. The most polymorphic population was T. divaricatus from Alagoado, followed by that of the same species from Ibiraba, suggesting both probable recovery of mtDNA genetic diversity after putative reductions in population size, and recent population expansion.O grupo nanuzae de lagartos compreende três espécies, Tropidurus nanuzae, T. divaricatus e T. amathites. A primeira é encontrada ao longo da Serra do Espinhaço, na região leste do Brasil, e as outras duas na região norte do Estado da Bahia, nas dunas continentais do Rio São Francisco, em margens opostas. Essas três espécies foram analisadas quanto a polimorfismos de tamanho de fragmentos de restrição (RFLP do DNAmit, tendo sido caracterizados 53 sítios de restrição. Polimorfismos de sítio e de tamanho de alguns fragmentos específicos foram caracterizados, bem como casos de heteroplasmia envolvendo variações de tamanho. Em T. divaricatus, estas variações correspondem a 50-200 pb, provavelmente

  7. Seasonal species interactions minimize the impact of species turnover on the likelihood of community persistence.

    Science.gov (United States)

    Saavedra, Serguei; Rohr, Rudolf P; Fortuna, Miguel A; Selva, Nuria; Bascompte, Jordi

    2016-04-01

    Many of the observed species interactions embedded in ecological communities are not permanent, but are characterized by temporal changes that are observed along with abiotic and biotic variations. While work has been done describing and quantifying these changes, little is known about their consequences for species coexistence. Here, we investigate the extent to which changes of species composition impact the likelihood of persistence of the predator-prey community in the highly seasonal Białowieza Primeval Forest (northeast Poland), and the extent to which seasonal changes of species interactions (predator diet) modulate the expected impact. This likelihood is estimated extending recent developments on the study of structural stability in ecological communities. We find that the observed species turnover strongly varies the likelihood of community persistence between summer and winter. Importantly, we demonstrate that the observed seasonal interaction changes minimize the variation in the likelihood of persistence associated with species turnover across the year. We find that these community dynamics can be explained as the coupling of individual species to their environment by minimizing both the variation in persistence conditions and the interaction changes between seasons. Our results provide a homeostatic explanation for seasonal species interactions and suggest that monitoring the association of interactions changes with the level of variation in community dynamics can provide a good indicator of the response of species to environmental pressures.

  8. Two new species of nocturnal bees of the genus Megalopta (Hymenoptera: Halictidae) with keys to species.

    Science.gov (United States)

    Gonzalez, Victor H; Griswold, Terry; Ayala, Ricardo

    2010-03-01

    Megalopta Smith, 1853, is a Neotropical genus of nocturnal or crepuscular bees. Two subgenera are recognized with most of its nearly 30 species placed in the nominate subgenus. Species of Megalopta s. str. are more commonly collected than species of Noctoraptor Engel et al. 1997, all presumably parasites of Megalopta s. str. Two new species of Megalopta are described here: M. (Megalopta) tetewana, n. sp., from Mexico and M. (Noctoraptor) huaoranii, n. sp., from Ecuador. Identification keys to the Central American species of Megalopta s. str. and the species of the parasitic subgenus Noctoraptor are presented.

  9. A new species of Labidocera (Copepoda, Calanoida, Pontellidae) collected from Okinawa, southwestern Japan, with establishment of five Indo-West Pacific species groups in the L.detruncata species complex.

    Science.gov (United States)

    Hirabayashi, Takeshi; Ohtsuka, Susumu

    2014-01-01

    Labidocerachuraumi sp. n. is described from Okinawa, southwestern Japan. The female of the new species differs from other congeners in genital compound somite with right postero-lateral and left antero-lateral processes. The male is distinguished from other congeners by the structure of the fifth leg. This new species is assigned to a newly proposed species group, the Labidoceramadurae species group, within the Labidoceradetruncata species complex. In this species complex five Indo-West Pacific species groups are recognized (cervi, detruncata, gangetica, madurae, and pavo) and defined on the basis of difference in sexual dimorphism.

  10. Quantifying the invasiveness of species

    Directory of Open Access Journals (Sweden)

    Robert Colautti

    2014-04-01

    Full Text Available The success of invasive species has been explained by two contrasting but non-exclusive views: (i intrinsic factors make some species inherently good invaders; (ii species become invasive as a result of extrinsic ecological and genetic influences such as release from natural enemies, hybridization or other novel ecological and evolutionary interactions. These viewpoints are rarely distinguished but hinge on distinct mechanisms leading to different management scenarios. To improve tests of these hypotheses of invasion success we introduce a simple mathematical framework to quantify the invasiveness of species along two axes: (i interspecific differences in performance among native and introduced species within a region, and (ii intraspecific differences between populations of a species in its native and introduced ranges. Applying these equations to a sample dataset of occurrences of 1,416 plant species across Europe, Argentina, and South Africa, we found that many species are common in their native range but become rare following introduction; only a few introduced species become more common. Biogeographical factors limiting spread (e.g. biotic resistance, time of invasion therefore appear more common than those promoting invasion (e.g. enemy release. Invasiveness, as measured by occurrence data, is better explained by inter-specific variation in invasion potential than biogeographical changes in performance. We discuss how applying these comparisons to more detailed performance data would improve hypothesis testing in invasion biology and potentially lead to more efficient management strategies.

  11. Dna c-values of 20 invasive alien species and 3 native species in south china

    Directory of Open Access Journals (Sweden)

    Gong Ni

    2014-01-01

    Full Text Available Cultivated fields and forests in South China are experiencing serious damage due to invasive alien plants. We investigated the relation between DNA C-values and invasiveness. The DNA C-values of 23 species ranged from 0.39 pg to 3.37 pg. Herbs, perennials and native species had higher mean DNA C-values than shrubs, annuals and invasive alien species. DNA C-values decreased with increasing invasiveness. Paederia scandens, a harmful native species, has the lowest DNA C-value among the perennials, indicating that native species with low nuclear content may also possess an invasive potential.

  12. From single-species advice to mixed-species management: taking the next step

    DEFF Research Database (Denmark)

    Vinther, Morten; Reeves, S.A.; Patterson, K.R.

    2004-01-01

    Fishery management advice has traditionally been given on a stock-by-stock basis. Recent problems in implementing this advice, particularly for the demersal fisheries of the North Sea, have highlighted the limitations of the approach. In the long term, it would be desirable to give advice...... that accounts for mixed-fishery effects, but in the short term there is a need for approaches to resolve the conflicting management advice for different species within the same fishery, and to generate catch or effort advice that accounts for the mixed-species nature of the fishery. This paper documents...... a recent approach used to address these problems. The approach takes the single-species advice for each species in the fishery as a starting point, then attempts to resolve it into consistent catch or effort advice using fleet-disaggregated catch forecasts in combination with explicitly stated management...

  13. An analysis of species boundaries and biogeographic patterns in a cryptic species complex: the rotifer--Brachionus plicatilis.

    Science.gov (United States)

    Suatoni, Elizabeth; Vicario, Saverio; Rice, Sean; Snell, Terry; Caccone, Adalgisa

    2006-10-01

    Since the advent of molecular phylogenetics, there is increasing evidence that many small aquatic and marine invertebrates--once believed to be single, cosmopolitan species--are in fact cryptic species complexes. Although the application of the biological species concept is central to the identification of species boundaries in these cryptic complexes, tests of reproductive isolation do not frequently accompany phylogenetic studies. Because different species concepts generally identify different boundaries in cryptic complexes, studies that apply multiple species concepts are needed to gain a more detailed understanding of patterns of diversification in these taxa. Here we explore different methods of empirically delimiting species boundaries in the salt water rotifer Brachionus plicatilis by comparing reproductive data (i.e., the traditional biological species concept) to phylogenetic data (the genealogical species concept). Based on a high degree of molecular sequence divergence and largely concordant genetic patterns in COI and ITS1, the genealogical species hypothesis indicates the existence of at least 14 species--the highest estimate for the group thus far. A test of the genealogical species concept with biological crosses shows a fairly high level of concordance, depending on the degree of reproductive success used to draw boundaries. The convergence of species concepts in this group suggests that many of the species within the group may be old. Although the diversity of the group is higher than previously understood, geographic distributions remain broad. Efficient passive dispersal has resulted in global distributions for many species with some evidence of isolation by distance over large geographic scales. These patterns concur with expectations that micro-meiofauna (0.1-1mm) have biogeographies intermediate to microbial organisms and large vertebrates. Sympatry of genetically distant strains is common.

  14. Abattoirs et industrialisation de la production de la viande

    Directory of Open Access Journals (Sweden)

    Anne-Elène Delavigne

    2010-03-01

    Full Text Available Une nouvelle ethnographie des abattoirsSaluons l'initiative de la collection « Natures sociales », dirigée par François Sigaut et Raphaël Larrère (édition MSH / Quae qui permet une nouvelle publication sur la thématique des abattoirs, vingt et un ans après l'ouvrage de Noélie Vialles, Le Sang et la Chair. Cet ouvrage qui a fait autorité en sciences sociales sur le sujet était d'ailleurs également publié par la Maison des Sciences de l'Homme. Depuis cette publication en 1987, le champ est tou...

  15. « Women’s Studies » aux Etats-Unis : trente ans de succès et de contestation

    OpenAIRE

    BOXER, Marilyn

    2006-01-01

    Ces trente dernières années, les women’s studies se sont développées aux États-Unis et sont devenues un nouveau domaine du savoir dans l’enseignement supérieur. Entre 1978 et 1995, plus de 10 000 étudiants ont obtenu un diplôme doctoral fondé sur un travail de recherche dans ce domaine. Les women’s studies ont amené de nouvelles questions, de nouveaux concepts, de nouvelles catégories d’analyse et des interprétations révisées de la sagesse conventionnelle à beaucoup – si ce n’est à la plupart...

  16. Étude du soudage LASER Yb : YAG homogène et hétérogène des superalliages Hastelloy X et Haynes 188

    OpenAIRE

    Graneix, Jérémie

    2015-01-01

    De nos jours, la complexité des pièces mécaniques est de plus en plus grande dans de nombreux secteurs industriels de pointes tels que l’aéronautique, l’aérospatiale ou bien encore le domaine médical. Pour répondre à ces nouvelles exigences, notamment en termes de géométrie, de nouvelles techniques de conception et de fabrication automatisées intègrant également une meilleure traçabilité des pièces, sont mises en place. Ce travail de thèse s’est inscrit dans un projet partenarial entre le Lab...

  17. Modos subordinados de acceso a los clásicos en Los príncipes valientes de Javier Pérez Andújar

    OpenAIRE

    Cáliz Montes, Jessica

    2015-01-01

    Le présent article aborde la question de la diffusion de la culture savante à travers la culture visuelle en se centrant sur Los príncipes valientes (2007) de Javier Pérez Andújar. Concrètement, il analyse la cohabitation entre la tradition populaire, orale, et une nouvelle culture populaire, pendant la période du « tardo-franquisme ». Cette nouvelle culture est diffusée grâce à différents moyens, qui appartiennent à la « sous-culture » (Amorós) – la télévision, les bandes dessinées, le ciném...

  18. ‘Comprendre le mal extrême.’

    Directory of Open Access Journals (Sweden)

    Christian Ruby

    2003-10-01

    Full Text Available Fondée sur l'exercice d'une terreur politique et sur un processus d'extermination radicale, une nouvelle forme de pouvoir d'État est née au 20 e  siècle. Afin de parler avec précision de cette nouvelle réalité, il fallait forger un concept encore inédit dans les typologies du pouvoir léguées par Platon et Montesquieu. La philosophe allemande (émigrée aux États-Unis, où elle prendra la nationalité américaine Hannah Arendt a proposé, en 1951, le concept de ...

  19. Edgard Pisani (dir., 2007, Une politique mondiale pour nourrir le monde, Ed. Springer.

    Directory of Open Access Journals (Sweden)

    Benoît Lallau

    2008-09-01

    Full Text Available Voilà un ouvrage, qui, si j’ose dire, tombe bien. Ces derniers mois, les mauvaises nouvelles s’accumulent en effet sur la question alimentaire : renchérissement des denrées de base, grogne au Nord, émeutes de la faim au Sud. Des mauvaises nouvelles qui conduisent, il n’est que temps, à de nouveau débattre sérieusement de cette question. Et cet ouvrage apporte une contribution précieuse à ces débats, en avançant, dès son titre, une proposition essentielle : les tensions actuelles ne se résoudr...

  20. Diagnóstico de ABPA em pacientes portadores de fibrose cística: utilidade clínica da pesquisa de IgE específica contra alérgenos recombinantes do Aspergillus fumigatus ABPA diagnosis in cystic fibrosis patients: the clinical utility of IgE specific to recombinant Aspergillus fumigatus allergens

    Directory of Open Access Journals (Sweden)

    Marina B. Almeida

    2006-06-01

    Full Text Available OBJETIVO: A aspergilose broncopulmonar alérgica (ABPA é um fator complicador da fibrose cística que pode determinar uma combinação devastadora na evolução da doença pulmonar. A sobreposição de sinais e sintomas das duas enfermidades dificulta o diagnóstico, mesmo aplicando critérios padronizados. O objetivo deste trabalho foi identificar, em grupo de portadores de fibrose cística, os casos de ABPA através da detecção de IgE específica contra os alérgenos recombinantes do Aspergillus fumigatus e confrontar esse método com os critérios preconizados pela Cystic Fibrosis Foundation. MÉTODOS: Cinqüenta e quatro pacientes de 2 a 20 anos, com características que poderiam estar isoladamente presentes na ABPA, foram avaliados sistematicamente, incluindo: dados clínicos, tomografia computadorizada de tórax, teste cutâneo de hipersensibilidade imediata para A. fumigatus; dosagem de IgE sérica total, RAST para A. fumigatus, e IgE sérica específica para alérgenos recombinantes r Asp f1, f2, f3, f4 e f6. RESULTADOS: Foram elegíveis para o estudo 39 pacientes. Destes, 32 foram investigados. Houve sensibilização ao A. fumigatus em 34%. Ambos os métodos, o critério da Cystic Fibrosis Foundation e a pesquisa de IgE específica contra antígenos recombinantes, determinaram três casos de ABPA; entretanto, o diagnóstico foi concordante em apenas dois pacientes. CONCLUSÃO: A detecção de IgE específica contra antígenos recombinantes do A. fumigatus foi ferramenta útil para detecção precoce da sensibilização e diagnóstico de ABPA. No entanto, a confirmação diagnóstica não pôde ser desvinculada da condição clínica, e sua utilização para diagnóstico, detecção de recidivas e critério de cura ainda requer estudos longitudinais, envolvendo maior número de pacientes.OBJECTIVE: Allergic bronchopulmonary aspergillosis (ABPA is a complicating factor of cystic fibrosis which can result in a devastating combination as

  1. Diversidad genética intra e inter-específica de ñame (Dioscorea spp. de la región Caribe de Colombia mediante marcadores AFLP

    Directory of Open Access Journals (Sweden)

    Alvarez Soto Andres

    2011-12-01

    Full Text Available Conocer la variabilidad genética del ñame, Dioscorea spp., permite apoyar estrategias de mejoramiento y conservación de este recurso fitogenético. El objetivo de este estudio fue la caracterización molecular de 20 accesiones de Dioscorea spp. mediante la técnica molecular de AFLP para determinar cómo se distribuye la variabilidad genética de manera intra e inter-específica. Los datos fueron analizados mediante los métodos de agrupación de correspondencia múltiple y análisis de similaridad de Dice, estableciendo los niveles de confiabilidad de los grupos genéticos mediante remuestreos. En términos de diversidad interespecífica, los valores promedios de similitud variaron entre 41.81% entre D. alata L. y D. rotundata Poir., y 33.51% entre D. trifida L.f. y D. esculenta (Lour. Burkill, lo que sugiere alta diversidad genética entre las accesiones estudiadas, que formaron cuatro grupos genéticos: D. alata, D. rotundata, D. esculenta y D. trifida, confirmando correspondencia entre la caracterización morfológica, clasificación botánica y la caracterización molecular. En términos de diversidad intraespecífica para la especie D. alata, el análisis también reveló una composición heterogénea en la región Caribe colombiana. Estos estudios ayudarán a definir una estrategia adecuada para fines de conservación y apoyar los esfuerzos futuros en los programas de mejoramiento genético.

  2. Effects of Gamma Radiation on Three Species of Philippine Insect Pests; Effets des rayons gamma sur trois especes d'insectes nuisibles des Philippines; Dejstvie gamma-izlucheniya na tri raznovidnosti nasekomykh-vreditelej na Filippinakh; Efectos de las radiaciones gamma sobre tres plagas insectiles de las Filipinas

    Energy Technology Data Exchange (ETDEWEB)

    Viado, G. B.; Manoto, E. C. [Philippine Atomic Energy Commission, National Science Development Board, Manila (Philippines)

    1963-09-15

    A study was conducted on the effects of gamma radiation from a Co{sup 60} source on three agricultural insect pests, namely (1) the tomato lady beetle, Epilachna philippinensis Dieke, a pest of tomato and eggplant; (2) the rice weevil, Sitophilus oryzae L.; and (3) the rust-red flour beetle, Tribolium castaneum Herbst. The last two species are the most common and most destructive pests of corn and other stored grains and grain products in the Philippines. Eggs, larvae, pupae and adults of E. philippinensis on tomato and adults of S. oryzae and T. castaneum on corn were used. Four doses were used on Epilachna, namely 1, 5, 10 and 20 kr. In the other two species, five doses were used, 10, 20, 40, 60 and 80 kr. At 1 kr, the proportion of unhatched eggs in Epilachna was about 10%. There was no proportionate increase in mortality at 5 kr, but at 10 kr the mortality increased to more than three times that at 5 kr. Mortality at 20 kr was about 90%. The threshold dose seems to lie between 5 and 10 kr. The embryo of eggs that did not hatch failed to continue development. At 1 kr, over 20% of the larvae were killed, although some of these succeeded in pupating before they died. Most of the larvae attained the adult stage, All the larvae that survived the treatments above 1 kr, some for.as long as four weeks, died without attaining the pupal stage. The pupae were more resistant than the larvae and the adults. Complete mortality was not attained even with 20 kr. Some adults which emerged in the 5-kr and 10-kr lots had abnormally developed wings and/or legs. In the adults, the 10 and 20 kr doses had an adverse effect, killing about 75% of the individuals subjected to the lower, and all subjected to the higher, dose three weeks after irradiation. No significant difference in susceptibility between the sexes was noted. About 40% of the S. oryzae in the lots treated with 60 and 80 kr were killed one week after irradiation, but only about 10% were killed with 20 kr and about 2 0

  3. Effects of species' characteristics on nongovernmental organizations' attitudes toward species conservation policy

    NARCIS (Netherlands)

    Knegtering, E; Hendrickx, L.C W P; van der Windt, H.J.; Schoot Uiterkamp, A.J.M.

    The authors examined the willingness of nongovernmental organizations (NGOs) to support public species conservation measures as a function of species characteristics, NGOs' interests, and interests harmed by the measures. In an experiment, 39 policy makers from nature conservation, mobility and

  4. Neosilba (Tephritoidea: Lonchaeidae) species reared from coffee in Brazil, with description of a new species

    Energy Technology Data Exchange (ETDEWEB)

    Striki, Pedro Carlos; Prado, Angelo Pires do, E-mail: apprado@unicamp.b [Universidade Estadual de Campinas (UNICAMP), SP (Brazil). Inst. de Biologia. Dept. de Parasitologia

    2006-07-01

    Neosilba species are believed to be secondary invaders of fruit, so, little attention has been paid to its presence in coffee fruits. In this article we present a key to Neosilba species present in coffee fruits and describe a new species that is considered a primary invader. We hope this will help researchers working with coffee fruits to better quantify the economic importance of Neosilba species associated with coffee fruits. (author)

  5. Neosilba (Tephritoidea: Lonchaeidae) species reared from coffee in Brazil, with description of a new species

    International Nuclear Information System (INIS)

    Striki, Pedro Carlos; Prado, Angelo Pires do

    2006-01-01

    Neosilba species are believed to be secondary invaders of fruit, so, little attention has been paid to its presence in coffee fruits. In this article we present a key to Neosilba species present in coffee fruits and describe a new species that is considered a primary invader. We hope this will help researchers working with coffee fruits to better quantify the economic importance of Neosilba species associated with coffee fruits. (author)

  6. Evaluating Hypotheses of Plant Species Invasions on Mediterranean Islands: Inverse Patterns between Alien and Endemic Species

    Directory of Open Access Journals (Sweden)

    Alexander Bjarnason

    2017-08-01

    Full Text Available Invasive alien species cause major changes to ecosystem functioning and patterns of biodiversity, and the main factors involved in invasion success remain contested. Using the Mediterranean island of Crete, Greece as a case study, we suggest a framework for analyzing spatial data of alien species distributions, based on environmental predictors, aiming to gain an understanding of their spatial patterns and spread. Mediterranean islands are under strong ecological pressure from invading species due to their restricted size and increased human impact. Four hypotheses of invasibility, the “propagule pressure hypothesis” (H1, “biotic resistance hypothesis vs. acceptance hypothesis” (H2, “disturbance-mediated hypothesis” (H3, and “environmental heterogeneity hypothesis” (H4 were tested. Using data from alien, native, and endemic vascular plant species, the propagule pressure, biotic resistance vs. acceptance, disturbance-mediated, and environmental heterogeneity hypotheses were tested with Generalized Additive Modeling (GAM of 39 models. Based on model selection, the optimal model includes the positive covariates of native species richness, the negative covariates of endemic species richness, and land area. Variance partitioning between the four hypotheses indicated that the biotic resistance vs. acceptance hypothesis explained the vast majority of the total variance. These results show that areas of high species richness have greater invasibility and support the acceptance hypothesis and “rich-get-richer” distribution of alien species. The negative correlation between alien and endemic species appears to be predominantly driven by altitude, with fewer alien and more endemic species at greater altitudes, and habitat richness. The negative relationship between alien and endemic species richness provides potential for understanding patterns of endemic and alien species on islands, contributing to more effective conservation

  7. Construction of analytically solvable models for interacting species. [biological species competition

    Science.gov (United States)

    Rosen, G.

    1976-01-01

    The basic form of a model representation for systems of n interacting biological species is a set of essentially nonlinear autonomous ordinary differential equations. A generic canonical expression for the rate functions in the equations is reported which permits the analytical general solution to be obtained by elementary computation. It is shown that a general analytical solution is directly obtainable for models where the rate functions are prescribed by the generic canonical expression from the outset. Some illustrative examples are given which demonstrate that the generic canonical expression can be used to construct analytically solvable models for two interacting species with limit-cycle dynamics as well as for a three-species interdependence.

  8. A new species of Labidocera (Copepoda, Calanoida, Pontellidae collected from Okinawa, southwestern Japan, with establishment of five Indo-West Pacific species groups in the L. detruncata species complex

    Directory of Open Access Journals (Sweden)

    Takeshi Hirabayashi

    2014-10-01

    Full Text Available Labidocera churaumi sp. n. is described from Okinawa, southwestern Japan. The female of the new species differs from other congeners in genital compound somite with right postero-lateral and left antero-lateral processes. The male is distinguished from other congeners by the structure of the fifth leg. This new species is assigned to a newly proposed species group, the L. madurae species group, within the L. detruncata species complex. In this species complex five Indo-West Pacific species groups are recognized (cervi, detruncata, gangetica, madurae, and pavo and defined on the basis of difference in sexual dimorphism.

  9. A new species of Labidocera (Copepoda, Calanoida, Pontellidae) collected from Okinawa, southwestern Japan, with establishment of five Indo-West Pacific species groups in the L. detruncata species complex

    Science.gov (United States)

    Hirabayashi, Takeshi; Ohtsuka, Susumu

    2014-01-01

    Abstract Labidocera churaumi sp. n. is described from Okinawa, southwestern Japan. The female of the new species differs from other congeners in genital compound somite with right postero-lateral and left antero-lateral processes. The male is distinguished from other congeners by the structure of the fifth leg. This new species is assigned to a newly proposed species group, the Labidocera madurae species group, within the Labidocera detruncata species complex. In this species complex five Indo-West Pacific species groups are recognized (cervi, detruncata, gangetica, madurae, and pavo) and defined on the basis of difference in sexual dimorphism. PMID:25349514

  10. Comparison of species ordinations resulting from alternative indices of interspecific association and different numbers of included species

    Energy Technology Data Exchange (ETDEWEB)

    Goff, F G

    1975-12-19

    Several measures of interspecific association are compared. Dispersion and covariance are limited in value because they respond to the commonness of the species compared. Correlation is not so limited but it responds to discrepancies in commonness among the species. The practical result of these relationships between commonness and association is that only the most common species can occupy peripheral positions in a species ordination. Rare species are relegated to positions near the center not on the basis of their phytosociological pattern but simply because of their rarity. Both Cole's index of association and the tetrachoric correlation overcome the problem imposed by the relationship between ordination position and species commonness and they both produce very similar results. The effect of differing numbers of species on the ordination configuration is examined using both Pearson's correlation and Cole's index. The basic pattern of the ordination is set with the first few species when Cole's index is used, however, since rare species are given more weight in the analysis with this index, the addition of several very rare species can change the configuration of the ordination. (auth)

  11. CpDNA-based species identification and phylogeography: application to African tropical tree species.

    Science.gov (United States)

    Duminil, J; Heuertz, M; Doucet, J-L; Bourland, N; Cruaud, C; Gavory, F; Doumenge, C; Navascués, M; Hardy, O J

    2010-12-01

    Despite the importance of the African tropical rainforests as a hotspot of biodiversity, their history and the processes that have structured their biodiversity are understood poorly. With respect to past demographic processes, new insights can be gained through characterizing the distribution of genetic diversity. However, few studies of this type have been conducted in Central Africa, where the identification of species in the field can be difficult. We examine here the distribution of chloroplast DNA (cpDNA) diversity in Lower Guinea in two tree species that are difficult to distinguish, Erythrophleum ivorense and Erythrophleum suaveolens (Fabaceae). By using a blind-sampling approach and comparing molecular and morphological markers, we first identified retrospectively all sampled individuals and determined the limits of the distribution of each species. We then performed a phylogeographic study using the same genetic data set. The two species displayed essentially parapatric distributions that were correlated well with the rainfall gradient, which indicated different ecological requirements. In addition, a phylogeographic structure was found for E. suaveolens and, for both species, substantially higher levels of diversity and allelic endemism were observed in the south (Gabon) than in the north (Cameroon) of the Lower Guinea region. This finding indicated different histories of population demographics for the two species, which might reflect different responses to Quaternary climate changes. We suggest that a recent period of forest perturbation, which might have been caused by humans, favoured the spread of these two species and that their poor recruitment at present results from natural succession in their forest formations. © 2010 Blackwell Publishing Ltd.

  12. Dos especies nuevas de Ouratea Aublet (Ochnaceae de Colombia Dos especies nuevas de Ouratea Aublet (Ochnaceae de Colombia

    Directory of Open Access Journals (Sweden)

    Sastre C.

    1986-12-01

    Full Text Available Two new colombian species of Ouratea Aublet (Ochnaceae are described. Relationships are established with O. gigantophylla (Erhard Engler and O. macrophylla van Tieghem.   Entre el material de Ouratea Aublet (Ochnaceae recolectado recientemente en Colombia, no he podido referir tres especímenes a las especies ya descritas.  Estas plantas pertenecen a dos especies nuevas, sistemáticamente cercanas a O. gigantophylla (Erhard Engler y a O. macrophylla van Tieghem.

  13. Endangered Species Protection Bulletins

    Science.gov (United States)

    Endangered Species Protection Bulletins set forth geographically specific pesticide use limitations for the protection of threatened and endangered (listed) species and their designated critical habitat. Find out how to get and use Bulletins.

  14. New Malesian species of Viscaceae

    NARCIS (Netherlands)

    Barlow, Bryan A.

    1996-01-01

    Three new Malesian species of Viscaceae are described. Ginalloa flagellaris Barlow is distinguished as a species from New Guinea and New Britain, previously included within G. arnottiana Korthals. Viscum exile Barlow is recognized as a new species endemic to Celebes, related to V. ovalifolium.

  15. Toward reassessing data-deficient species.

    Science.gov (United States)

    Bland, Lucie M; Bielby, Jon; Kearney, Stephen; Orme, C David L; Watson, James E M; Collen, Ben

    2017-06-01

    One in 6 species (13,465 species) on the International Union for Conservation of Nature (IUCN) Red List is classified as data deficient due to lack of information on their taxonomy, population status, or impact of threats. Despite the chance that many are at high risk of extinction, data-deficient species are typically excluded from global and local conservation priorities, as well as funding schemes. The number of data-deficient species will greatly increase as the IUCN Red List becomes more inclusive of poorly known and speciose groups. A strategic approach is urgently needed to enhance the conservation value of data-deficient assessments. To develop this, we reviewed 2879 data-deficient assessments in 6 animal groups and identified 8 main justifications for assigning data-deficient status (type series, few records, old records, uncertain provenance, uncertain population status or distribution, uncertain threats, taxonomic uncertainty, and new species). Assigning a consistent set of justification tags (i.e., consistent assignment to assessment justifications) to species classified as data deficient is a simple way to achieve more strategic assessments. Such tags would clarify the causes of data deficiency; facilitate the prediction of extinction risk; facilitate comparisons of data deficiency among taxonomic groups; and help prioritize species for reassessment. With renewed efforts, it could be straightforward to prevent thousands of data-deficient species slipping unnoticed toward extinction. © 2016 Society for Conservation Biology.

  16. Sur une nouvelle espèce de Sycon et quelques Démosponges récoltées par le ”Cirrus” dans l’Atlantique Nord

    NARCIS (Netherlands)

    Borojevic, R.; Graat-Kleeton, G.

    1965-01-01

    Two species of Calcarea, including Sycon abyssale n.sp., and two species of silicious sponges were collected at depths of 2400 to 3900 m in the Northern Atlantic. These records considerably extend the vertical distribution of calcareous sponges down to 3900 m.

  17. Are trade-offs among species' ecological interactions scale dependent? A test using pitcher-plant inquiline species.

    Science.gov (United States)

    Kneitel, Jamie M

    2012-01-01

    Trade-offs among species' ecological interactions is a pervasive explanation for species coexistence. The traits associated with trade-offs are typically measured to mechanistically explain species coexistence at a single spatial scale. However, species potentially interact at multiple scales and this may be reflected in the traits among coexisting species. I quantified species' ecological traits associated with the trade-offs expected at both local (competitive ability and predator tolerance) and regional (competitive ability and colonization rate) community scales. The most common species (four protozoa and a rotifer) from the middle trophic level of a pitcher plant (Sarracenia purpurea) inquiline community were used to link species traits to previously observed patterns of species diversity and abundance. Traits associated with trade-offs (competitive ability, predator tolerance, and colonization rate) and other ecological traits (size, growth rate, and carrying capacity) were measured for each of the focal species. Traits were correlated with one another with a negative relationship indicative of a trade-off. Protozoan and rotifer species exhibited a negative relationship between competitive ability and predator tolerance, indicative of coexistence at the local community scale. There was no relationship between competitive ability and colonization rate. Size, growth rate, and carrying capacity were correlated with each other and the trade-off traits: Size was related to both competitive ability and predator tolerance, but growth rate and carrying capacity were correlated with predator tolerance. When partial correlations were conducted controlling for size, growth rate and carrying capacity, the trade-offs largely disappeared. These results imply that body size is the trait that provides the basis for ecological interactions and trade-offs. Altogether, this study showed that the examination of species' traits in the context of coexistence at different scales

  18. A new Amazonian species from the Drosophila annulimana species group (Diptera, Drosophilidae

    Directory of Open Access Journals (Sweden)

    Marco S. Gottschalk

    2012-12-01

    Full Text Available Drosophila caxiuana sp. nov., Drosophila subgenus, is described and illustrated. This new species was collected in the Amazonian Biome (Caquajó river, Portel, Pará, Brazil and is an atypical species to the group due the unusual morphology of the male terminalia.

  19. Distúrbio específico de linguagem: desempenho em testes de memória de trabalho fonológica e de habilidades auditivas

    Directory of Open Access Journals (Sweden)

    Lidiane Yumi Sawasaki

    2017-01-01

    Full Text Available Hipóteses vêm sendo apontadas para explicar as dificuldades linguísticas de crianças com Distúrbio Específico de Linguagem (DEL, e, dentre elas, podemos citar alterações na memória de trabalho fonológica (MTF e no processamento auditivo temporal (PAT. Assim, o objetivo do presente estudo foi verificar o desempenho de sujeitos com DEL em testes de MTF, de PAT e de atenção auditiva sustentada (AAS e, ainda, verificar se há correlação entre eles. Foram selecionadas 12 crianças com idades entre 6 e 10 anos, sendo nove meninos, com diagnóstico de DEL da Clínica de Fonoaudiologia da FOBjUSP de Bauru. Foram aplicados os seguintes testes: prova de memória de trabalho fonológica (MTF não palavras e dígitos, teste da habilidade de resolução temporallZl Random Gap Detection Test (RGDT !li e teste de habilidade de atenção auditiva sustentada (THAAS. Nas três provas aplicadas IZIMTF, AAS e PAT !li foram encontrados resultados inferiores à normalidade. Na literatura há fortes evidências de que crianças com DEL apresentam desempenho inadequado em tarefas de MTF que envolvem o armazenamento de um estímulo verbal, fato também confirmado neste trabalho. Como se verificou neste trabalho, DEL pode também estar associado a dificuldades no processamento de elementos acústicos breves e na atenção sustentada. Foi possível verificar com este estudo que quadros de DEL podem apresentar dificuldades de MTF, de atenção sustentada e em habilidades de resolução temporal. Mesmo não havendo correlação entre os testes, a grande maioria das crianças com DEL apresentou desempenho deficitário nas habilidades testadas. O DEL decorre de uma dificuldade constitucional para o processamento neuropsicológico da linguagem, e, desse modo, pessoas com esse quadro podem apresentar disfunção em qualquer nível do processamento, incluindo o processamento auditivo.  

  20. 75 FR 78974 - Endangered Species

    Science.gov (United States)

    2010-12-17

    ...-XA086 Endangered Species AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and... the Endangered Species Act of 1973, as amended (16 U.S.C. 1531 et seq.) and the regulations governing the taking, importing, and exporting of endangered and threatened species (50 CFR 222-226). Permit...

  1. Dna c-values of 20 invasive alien species and 3 native species in south china

    OpenAIRE

    Gong Ni; Wang Yu-Tao; Björn Lars Olof; Li Shao-Shan

    2014-01-01

    Cultivated fields and forests in South China are experiencing serious damage due to invasive alien plants. We investigated the relation between DNA C-values and invasiveness. The DNA C-values of 23 species ranged from 0.39 pg to 3.37 pg. Herbs, perennials and native species had higher mean DNA C-values than shrubs, annuals and invasive alien species. DNA C-values decreased with increasing invasiveness. Paederia scandens, a harmful native species, has the lo...

  2. Biological species in the viral world.

    Science.gov (United States)

    Bobay, Louis-Marie; Ochman, Howard

    2018-06-05

    Due to their dependence on cellular organisms for metabolism and replication, viruses are typically named and assigned to species according to their genome structure and the original host that they infect. But because viruses often infect multiple hosts and the numbers of distinct lineages within a host can be vast, their delineation into species is often dictated by arbitrary sequence thresholds, which are highly inconsistent across lineages. Here we apply an approach to determine the boundaries of viral species based on the detection of gene flow within populations, thereby defining viral species according to the biological species concept (BSC). Despite the potential for gene transfer between highly divergent genomes, viruses, like the cellular organisms they infect, assort into reproductively isolated groups and can be organized into biological species. This approach revealed that BSC-defined viral species are often congruent with the taxonomic partitioning based on shared gene contents and host tropism, and that bacteriophages can similarly be classified in biological species. These results open the possibility to use a single, universal definition of species that is applicable across cellular and acellular lifeforms.

  3. Cryptic Species Due to Hybridization: A Combined Approach to Describe a New Species (Carex: Cyperaceae).

    Science.gov (United States)

    Maguilla, Enrique; Escudero, Marcial

    2016-01-01

    Disappearance of diagnostic morphological characters due to hybridization is considered to be one of the causes of the complex taxonomy of the species-rich (ca. 2000 described species) genus Carex (Cyperaceae). Carex furva s.l. belongs to section Glareosae. It is an endemic species from the high mountains of the Iberian Peninsula (Spain and Portugal). Previous studies suggested the existence of two different, cryptic taxa within C. furva s.l. Intermediate morphologies found in the southern Iberian Peninsula precluded the description of a new taxa. We aimed to determine whether C. furva s.l. should be split into two different species based on the combination of morphological and molecular data. We sampled ten populations across its full range and performed a morphological study based on measurements on herbarium specimens and silica-dried inflorescences. Both morphological and phylogenetic data support the existence of two different species within C. furva s.l. Nevertheless, intermediate morphologies and sterile specimens were found in one of the southern populations (Sierra Nevada) of C. furva s.l., suggesting the presence of hybrid populations in areas where both supposed species coexist. Hybridization between these two putative species has blurred morphological and genetic limits among them in this hybrid zone. We have proved the utility of combining molecular and morphological data to discover a new cryptic species in a scenario of hybridization. We now recognize a new species, C. lucennoiberica, endemic to the Iberian Peninsula (Sierra Nevada, Central system and Cantabrian Mountains). On the other hand, C. furva s.s. is distributed only in Sierra Nevada, where it may be threatened by hybridization with C. lucennoiberica. The restricted distribution of both species and their specific habitat requirements are the main limiting factors for their conservation.

  4. Leadership of Winter Mixed-Species Flocks by Tufted Titmice (Baeolophus bicolor: Are Titmice Passive Nuclear Species?

    Directory of Open Access Journals (Sweden)

    Thomas A. Contreras

    2011-01-01

    Full Text Available The tufted titmouse (Baeolophus bicolor, TUTI is a nuclear species in winter foraging flocks whose antipredator calls are used to manage predation risk by diverse heterospecifics. We hypothesized that satellite species in mixed flocks follow TUTI (not vice versa, thereby defining the role of TUTI as a “passive” nuclear species. We followed 20 winter mixed-species flocks in North-Central Florida and assessed angular-angular correlations between overall flock, TUTI, and satellite species movement directions. We observed significant correlations between overall flock movement directions and those of TUTI, confirming our central prediction. Within flocks, however, fine-scale movement directions of satellite species were often more highly correlated with those of other satellites than with TUTI movements. We conclude that TUTI are passive nuclear species whose movements define flock paths, but within flocks, TUTI movements may have less influence on satellite movements than do other factors.

  5. Efficient distinction of invasive aquatic plant species from non-invasive related species using DNA barcoding.

    Science.gov (United States)

    Ghahramanzadeh, R; Esselink, G; Kodde, L P; Duistermaat, H; van Valkenburg, J L C H; Marashi, S H; Smulders, M J M; van de Wiel, C C M

    2013-01-01

    Biological invasions are regarded as threats to global biodiversity. Among invasive aliens, a number of plant species belonging to the genera Myriophyllum, Ludwigia and Cabomba, and to the Hydrocharitaceae family pose a particular ecological threat to water bodies. Therefore, one would try to prevent them from entering a country. However, many related species are commercially traded, and distinguishing invasive from non-invasive species based on morphology alone is often difficult for plants in a vegetative stage. In this regard, DNA barcoding could become a good alternative. In this study, 242 samples belonging to 26 species from 10 genera of aquatic plants were assessed using the chloroplast loci trnH-psbA, matK and rbcL. Despite testing a large number of primer sets and several PCR protocols, the matK locus could not be amplified or sequenced reliably and therefore was left out of the analysis. Using the other two loci, eight invasive species could be distinguished from their respective related species, a ninth one failed to produce sequences of sufficient quality. Based on the criteria of universal application, high sequence divergence and level of species discrimination, the trnH-psbA noncoding spacer was the best performing barcode in the aquatic plant species studied. Thus, DNA barcoding may be helpful with enforcing a ban on trade of such invasive species, such as is already in place in the Netherlands. This will become even more so once DNA barcoding would be turned into machinery routinely operable by a nonspecialist in botany and molecular genetics. © 2012 Blackwell Publishing Ltd.

  6. Usefulness of the wildlife species as a focal species in the forest ...

    African Journals Online (AJOL)

    yasinucarlı

    2011-03-14

    Mar 14, 2011 ... keystone species are the most important species in that ecosystems to sustainability. ... bear, Wolf and Eurasian Lynx can be also used as a flagship, indicator and ... Washington's Pacific coast. ... sidered keystones because their effect is not dispro- ..... conservation of South American terrestrial mammals.

  7. 76 FR 2348 - Endangered Species

    Science.gov (United States)

    2011-01-13

    .... 15596] Endangered Species AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and... requested permit has been issued under the authority of the Endangered Species Act of 1973, as amended (ESA... endangered and threatened species (50 CFR parts 222-226). The North Carolina Aquarium at Fort Fisher has been...

  8. ICRAF Species Switchboard. Version 1.2

    DEFF Research Database (Denmark)

    Kindt, R.; Ordonez, J.; Smith, E.

    2015-01-01

    The current version of the Agroforestry Species Switchboard documents the presence of a total of 26,135 plant species (33,813 species including synonyms) across 19 web-based databases. When available, hyperlinks to information on the selected species in particular databases are provided. In total...

  9. A Theory of Flagship Species Action

    Directory of Open Access Journals (Sweden)

    Paul Jepson

    2015-01-01

    Full Text Available The flagship species approach is an enduring strategy in conservation. Academic discussion on flagship species has focussed on two dimensions: on what basis should they be selected and how have they been put to use. Here we consider a third dimension, namely the manner in which flagship species act and have the capacity to galvanise and influence conservation outcomes. Drawing on concepts from the social sciences, viz. affordance, framing, and actor-networks; we discuss examples of flagship species to propose a theory of flagship species action. In brief, our theory posits that a flagship species is one with traits that afford the assembly of relatively coherent networks of associations with ideational elements located in pre-existing cultural framings. These associations give rise to opportunities to align with deep cultural frames, contemporary cultural phenomena and political economy such that when a conservation action is introduced, forms of agency cause the species and human publics to change. The species becomes re-framed (or reinvigorated as a cultural asset speaking for a wider nature, publics and political agendas. Further our theory posits that species with traits that enrol in idea networks incorporating human fears, will have limited flagship capacity. This is because the ability of the representations produced to align with frames incorporating collective aspirations is constrained. In terms of applied conservation practice, our theory suggests that: a key criteria for selecting potential flagship species is presence in existing cultural frames, that effective deployment of flagship species requires an understanding of the species′ cultural associations, and a species ability to galvanise action may be limited to certain times and places. Furthermore, once deployed conservation interests will never have full control over the flagship species: it may act in uncertain and unexpected ways.

  10. Course design, action research and the use of computers: challanges in an ESP course Desenho de curso, pesquisa-ação e o uso do computador: desafios num curso de línguas para fins específicos

    Directory of Open Access Journals (Sweden)

    Silvia Matravolgyi Damião

    2011-01-01

    Full Text Available This paper presents the results of an action research project that focused on the design and teaching of an ESP course and on the collaborative construction and development of a website. In the first year of the study, the course plan was modified due to the feedback given by the students and the same happened to the site, which was uploaded and modified according to the students' productions within the period. The course plan was reformulated in the second year of the study based on the experience acquired in the first year, and tasks were introduced to fulfill the students' academic and future professional needs. At the end of the second year of the study, it was possible to confirm that the course plan, with the modifications that were introduced, was adequate, and that the site reflected the tasks prepared by the students within the period, therefore reaching the objectives proposed at the beginning of the study. It was also possible to propose new directions for ESP teaching at the Institution where the research was carried out.Este artigo descreve os resultados de uma pesquisa-ação que teve como objetivos desenvolver e acompanhar um curso de linglês para fins específicose sua docência, bem como a construção e desenvolvimento de um website. No primeiro ano do trabalho, o plano de curso foi modificado, devido ao retorno dado pelos alunos e o mesmo aconteceu com o site, que foi sendo alimentado e modificado de acordo com as produções dos alunos no período. O plano de curso foi reformulado no segundo ano do estudo, com base na experiência adquirida no ano anterior, e tarefas foram introduzidas para ir ao encontro das necessidades acadêmicas e futuras necessidades profissionais dos alunos. Ao final do segundo ano da pesquisa, foi possível confirmar que o plano de curso, com as modificações implementadas, era adequado e que o site refletia as tarefas feitas pelos alunos durante o curso, confirmando-se, assim, os objetivos

  11. Species richness, habitable volume, and species densities in freshwater, the sea, and on land

    Directory of Open Access Journals (Sweden)

    Michael N Dawson

    2012-09-01

    Full Text Available Approximately 0.5–2.0 million eukaryotic species inhabit the seas, whereas 2.0–10.0 million inhabit freshwater or the land. Much has been made of this several-fold difference in species richness but there is little consensus about the causes. Here, I ask a related question: what is the relative density of species in marine and non-marine realms? I use recent estimates of global eukaryotic species richness and published estimates of the areal coverage and depth of habitat for freshwater, marine, and terrestrial biomes. I find that the marine realm harbors ~99.83% of the habitable volume on this planet. Eukaryotic species density of the marine realm is ~3600-fold (i.e., 3-4 orders of magnitude less than that of non-marine environments. Species–volume relationships (SVRs help reconcile actinopterygian fish diversity with global primary productivity and emphasize the interacting roles of abiotic and biotic complexity in shaping patterns of biodiversity in freshwater, the sea, and on land. Comparing SVRs of habitats within and across realms may help resolve the factors and interactions that influence species density.

  12. Detection of three Allexivirus species infecting garlic in Brazil Detecção de três espécies de Allexivirus que infectam o alho no Brasil

    Directory of Open Access Journals (Sweden)

    Péricles de Albuquerque Melo Filho

    2004-08-01

    Full Text Available Garlic viruses often occur in mixed infections under field conditions. In this study, garlic samples collected in three geographical areas of Brazil were tested by Dot-ELISA for the detection of allexiviruses using monoclonal specific antibodies to detect Garlic virus A (GarV-A, Garlic virus B (GarV-B, Garlic virus C (GarV-C and a polyclonal antiserum able to detect the three virus species mentioned plus Garlic virus D (GarV-D. The detected viruses were biologically isolated by successive passages through Chenopodium quinoa. Reverse Transcriptase Polimerase Chain Reaction (RT-PCR was performed using primers designed from specific regions of the coat protein genes of Japanese allexiviruses available in the Genetic Bank of National Center of Biotechnology Information (NCBI. By these procedures, individual garlic virus genomes were isolated and sequenced. The nucleotide and amino acid sequence analysis and the one with serological data revealed the presence of three distinct allexiviruses GarV-C, GarV-D and a recently described allexivirus, named Garlic mite-borne filamentous virus (GarMbFV, in Brazil.Infecções virais em alho são normalmente causadas por um complexo viral. Neste estudo, um complexo viral de alho, coletado em campo, em três regiões geográficas, foi testado com anti-soros monoclonais específicos para Garlic virus A (GarV-A, Garlic virus B (GarV-B, Garlic virus C (GarV-C e um anti-soro policlonal capaz de detectar os três vírus mencionados e Garlic virus D (GarV-D. Procedeu-se à amplificação por transcriptase reversa-reação em cadeia da polimerase (RT-PCR usando oligonucleotídeos sintetizados a partir de regiões específicas de genes de proteínas capsidiais de allexivirus japoneses e disponíveis no GeneBank (National Center of Biotechnology Information - NCBI. Por esse procedimento, vírus individuais foram isolados e seqüenciados. Os vírus detectados foram biologicamente isolados por meio de sucessivas inocula

  13. California Endangered Species Resource Guide.

    Science.gov (United States)

    California State Dept. of Education, Los Angeles.

    This document was developed in response to California Senate Bill No. 885, "The Endangered Species Education Project," that called for a statewide program in which schools adopt a local endangered species, research past and current efforts to preserve the species' habitat, develop and implement an action plan to educate the community…

  14. Biological review of 82 species of coral petitioned to be included in the Endangered Species Act

    Science.gov (United States)

    Brainard, Russell E.; Birkeland, Charles; Eakin, C. Mark; McElhany, Paul; Miller, Margaret W.; Patterson, Matt; Piniak, G.A.

    2011-01-01

    list 83 coral species as threatened or endangered under the U.S. Endangered Species Act. The petition was based on a predicted decline in available habitat for the species, citing anthropogenic climate change and ocean acidification as the lead factors among the various stressors responsible for the potential decline. The NMFS identified 82 of the corals as candidate species, finding that the petition provided substantive information for a potential listing of these species. The NMFS established a Biological Review Team (BRT) to prepare this Status Review Report that examines the status of these 82 candidate coral species and evaluates extinction risk for each of them. This document makes no recommendations for listing, as that is a separate evaluation to be conducted by the NMFS.

  15. Emergent neutrality drives phytoplankton species coexistence

    Science.gov (United States)

    Segura, Angel M.; Calliari, Danilo; Kruk, Carla; Conde, Daniel; Bonilla, Sylvia; Fort, Hugo

    2011-01-01

    The mechanisms that drive species coexistence and community dynamics have long puzzled ecologists. Here, we explain species coexistence, size structure and diversity patterns in a phytoplankton community using a combination of four fundamental factors: organism traits, size-based constraints, hydrology and species competition. Using a ‘microscopic’ Lotka–Volterra competition (MLVC) model (i.e. with explicit recipes to compute its parameters), we provide a mechanistic explanation of species coexistence along a niche axis (i.e. organismic volume). We based our model on empirically measured quantities, minimal ecological assumptions and stochastic processes. In nature, we found aggregated patterns of species biovolume (i.e. clumps) along the volume axis and a peak in species richness. Both patterns were reproduced by the MLVC model. Observed clumps corresponded to niche zones (volumes) where species fitness was highest, or where fitness was equal among competing species. The latter implies the action of equalizing processes, which would suggest emergent neutrality as a plausible mechanism to explain community patterns. PMID:21177680

  16. New species of Auritella (Inocybaceae) from Cameroon, with a worldwide key to the known species.

    Science.gov (United States)

    Matheny, P Brandon; Henkel, Terry W; Séné, Olivier; Korotkin, Hailee B; Dentinger, Bryn T M; Aime, M Catherine

    2017-12-01

    Two new species in the genus Auritella ( Inocybaceae ) are described as new from tropical rainforest in Cameroon. Descriptions, photographs, line drawings, and a worldwide taxonomic key to the described species of Auritella are presented. Phylogenetic analysis of 28S rDNA and rpb2 nucleotide sequence data suggests at least five phylogenetic species that can be ascribed to Auritella occur in the region comprising Cameroon and Gabon and constitute a strongly supported monophyletic subgroup within the genus. Phylogenetic analysis of ITS data supports the conspecificity of numerous collections attributed to the two new species as well as the monophyly of Australian species of Auritella . This work raises the known number of described species of Auritella to thirteen worldwide, four of which occur in tropical Africa, one in tropical India, and eight in temperate and tropical regions of Australia. This is the first study to confirm an ectomycorrhizal status of Auritella using molecular data.

  17. Molluscan indicator species and their potential use in ecological status assessment using species distribution modeling.

    Science.gov (United States)

    Moraitis, Manos L; Tsikopoulou, Irini; Geropoulos, Antonios; Dimitriou, Panagiotis D; Papageorgiou, Nafsika; Giannoulaki, Marianna; Valavanis, Vasilis D; Karakassis, Ioannis

    2018-05-24

    Marine habitat assessment using indicator species through Species Distribution Modeling (SDM) was investigated. The bivalves: Corbula gibba and Flexopecten hyalinus were the indicator species characterizing disturbed and undisturbed areas respectively in terms of chlorophyll a concentration in Greece. The habitat suitability maps of these species reflected the overall ecological status of the area. The C. gibba model successfully predicted the occurrence of this species in areas with increased physical disturbance driven by chlorophyll a concentration, whereas the habitat map for F. hyalinus showed an increased probability of occurrence in chlorophyll-poor areas, affected mainly by salinity. We advocate the use of C. gibba as a proxy for eutrophication and the incorporation of this species in monitoring studies through SDM methods. For the Mediterranean Sea we suggest the use of F. hyalinus in SDM as an indicator of environmental stability and a possible forecasting tool for salinity fluctuations. Copyright © 2018 Elsevier Ltd. All rights reserved.

  18. The species in primatology.

    Science.gov (United States)

    Groves, Colin

    2014-01-01

    Biologists of the late eighteenth and early nineteenth centuries all bandied about the term "species," but very rarely actually said what they meant by it. Often, however, one can get inside their thinking by piecing together some of their remarks. One of the most nearly explicit-appropriately, for the man who wrote a book called The Origin of Species - was Charles Darwin: "Practically, when a naturalist can unite two forms together by others having intermediate characters, he treats the one as a variety of the other… He later translated this into evolutionary terms: "Hereafter, we shall be compelled to acknowledge that the only distinction between species and well-marked varieties is, that the latter are known, or believed, to be connected at the present day by intermediate gradations, whereas species were formerly thus connected"(1:484-5.) Copyright © 2014 Wiley Periodicals, Inc.

  19. Species delimitation of the Hyphydrus ovatus complex in western Palaearctic with an update of species distributions (Coleoptera, Dytiscidae

    Directory of Open Access Journals (Sweden)

    Johannes Bergsten

    2017-06-01

    Full Text Available The species status of Hyphydrus anatolicus Guignot, 1957 and H. sanctus Sharp, 1882, previously often confused with the widespread H. ovatus (Linnaeus, 1760, are tested with molecular and morphological characters. Cytochrome c oxidase subunit 1 (CO1 was sequenced for 32 specimens of all three species. Gene-trees were inferred with parsimony, time-free bayesian and strict clock bayesian analyses. The GMYC model was used to estimate species limits. All three species were reciprocally monophyletic with CO1 and highly supported. The GMYC species delimitation analysis unequivocally delimited the three species with no other than the three species solution included in the confidence interval. A likelihood ratio test rejected the one-species null model. Important morphological characters distinguishing the species are provided and illustrated. New distributional data are given for the following species: Hyphydrus anatolicus from Slovakia and Ukraine, and H. aubei Ganglbauer, 1891, and H. sanctus from Turkey.

  20. Incorporating climate science in applications of the US endangered species act for aquatic species.

    Science.gov (United States)

    McClure, Michelle M; Alexander, Michael; Borggaard, Diane; Boughton, David; Crozier, Lisa; Griffis, Roger; Jorgensen, Jeffrey C; Lindley, Steven T; Nye, Janet; Rowland, Melanie J; Seney, Erin E; Snover, Amy; Toole, Christopher; VAN Houtan, Kyle

    2013-12-01

    Aquatic species are threatened by climate change but have received comparatively less attention than terrestrial species. We gleaned key strategies for scientists and managers seeking to address climate change in aquatic conservation planning from the literature and existing knowledge. We address 3 categories of conservation effort that rely on scientific analysis and have particular application under the U.S. Endangered Species Act (ESA): assessment of overall risk to a species; long-term recovery planning; and evaluation of effects of specific actions or perturbations. Fewer data are available for aquatic species to support these analyses, and climate effects on aquatic systems are poorly characterized. Thus, we recommend scientists conducting analyses supporting ESA decisions develop a conceptual model that links climate, habitat, ecosystem, and species response to changing conditions and use this model to organize analyses and future research. We recommend that current climate conditions are not appropriate for projections used in ESA analyses and that long-term projections of climate-change effects provide temporal context as a species-wide assessment provides spatial context. In these projections, climate change should not be discounted solely because the magnitude of projected change at a particular time is uncertain when directionality of climate change is clear. Identifying likely future habitat at the species scale will indicate key refuges and potential range shifts. However, the risks and benefits associated with errors in modeling future habitat are not equivalent. The ESA offers mechanisms for increasing the overall resilience and resistance of species to climate changes, including establishing recovery goals requiring increased genetic and phenotypic diversity, specifying critical habitat in areas not currently occupied but likely to become important, and using adaptive management. Incorporación de las Ciencias Climáticas en las Aplicaciones del

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