535 research outputs found

    Estudio morfológico comparado de Verrucaria maura y V. amphibia en la Costa Vasca

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    Se estudia la variabilidad que presentan las poblaciones de Verrucaria maura y V. amphibia de la costa vasca. Aparte de las formas típicas, se reconocen tres fenotipos diferentes, uno de ellos perteneciente a V. amphibia y los otros dos a V. mama. La principal variabilidad que presenta V. mania se relaciona con la altura a la que se encuentra en la costa.Los caracteres más útiles para la discriminación entre las dos especies son la forma del borde del talo y la anchura de las esporasMorphological variability in Verrucaria mania and V. amphibia is studied from populations living in the Basque Coast (N-Spain). Five different phenotypes are recognized, two of them belonging to V. amphibia (typical and type « a» 1), while the other three belong to V. maura (typical and types «m»1 and «m»2). Their morphology is summarized and compared in tables 1 and 2. Their macroscopic habit is shown in figs. 1-5.The most constant characters, hence the most suitable to distinguish between the two species, are the border of the thallus, wich is abrupt and without hypothallus in V. amphibia while it is thin and has a clear hypothallus in V. mania, and the size of spores, constantly broader in V. matra. All other morphological characters are far more variable and less useful for discrimination. The main variability found in V. mania is related with the relative level occupied by the specimens in the coast, while that found in V. amphibia is probably related with the degree of insolation.One of the phenotypes of V. mania, t. «m»2, is in uncertain posit ion for the momem, as it appears to be intermediate between the two species

    LES ESCARGOTS BIO-INDICATEURS DE LA QUALITE DES SOLS - Snail watch : analyse en laboratoire ou in situ de la biodisponibilité des contaminants

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    http://www2.ademe.fr/servlet/KBaseShow?sort=-1&cid=96&m=3&catid=10143fiche outil 4 pagesCe document est une fiche outil présentant les possibilités d'utilisation des escargots pou analyse en laboratoire ou in situ de la biodisponibilité des contaminants. Cette fiche a été mise en ligne sur le site de l'ADEME/ sites pollués et sols/ outils méthodologiques: http://www2.ademe.fr/servlet/KBaseShow?sort=-1&cid=96&m=3&catid=1014

    A toolkit of mechanism and context independent widgets

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    Most human-computer interfaces are designed to run on a static platform (e.g. a workstation with a monitor) in a static environment (e.g. an office). However, with mobile devices becoming ubiquitous and capable of running applications similar to those found on static devices, it is no longer valid to design static interfaces. This paper describes a user-interface architecture which allows interactors to be flexible about the way they are presented. This flexibility is defined by the different input and output mechanisms used. An interactor may use different mechanisms depending upon their suitability in the current context, user preference and the resources available for presentation using that mechanism

    Chemical extractions and predicted free ion activities fail to estimate metal transfer from soil to field land snails.

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    International audienceThis study investigates the relevance of several soil chemical extractions (calcium chloride, acetic acid, citric acid and a four-step sequential procedure) and predicted free metal ion activities in the soil solution to characterise the transfer of trace metals (Cd, Pb, and Zn) from soil to snail soft tissues over a large smelter-impacted area (Metaleurop Nord, Nord-Pas-de-Calais, France). The study was first performed on six snail species together and then specifically on Cepaea sp. and Oxychilus draparnaudi. When the six species were considered together, the accumulation of metals depended mostly on the species. When significant, total or extractable metal concentrations, or the predicted free ion activities, accounted for less than 7% of the variation of the metal concentrations in the snail tissues. Species-specific analyses showed that extractable concentrations explained approximately 25% of the variation of the metal concentrations in O. draparnaudi, and up to 8% in Cepaea snails. When using total soil concentrations and soil properties as explanatory variables, the models were generally slightly better, explaining up to 42% of the variance. The soil extraction procedures and predicted free ion activities used in this study did not accurately estimate the metal transfer from soil to snails and could not be used in risk assessment

    Fogones, combustible óseo y procesamiento faunístico en el sitio de Huencú Nazar (Sistema Lagunar Hinojo-Las Tunas, región pampeana, Argentina): Implicancias para el uso del espacio por cazadores-recolectores

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    Huncú Nazar, an open-air archaeological site occupied during the Late Holocene (ca. 3000 years BP), is located on the shore of a shallow lake from the Hinojo-Las Tunas Shallow Lake System in the Pampean region of Argentina. Within an area of 5,000 m2 are distributed 22 hearths, caches of rocks, and concentrations of granitoid rocks. In one of the excavated sectors, researchers identified hearths with concave bases and the use of bones of Lama guanicoe (Artiodactyla, Camelidae) as fuel. In this way, the inhabitants solved the problem of accumulating animal waste that would have otherwise affected their standards of living. They also deposited materials related to subsistence and technology around the hearths.Huencú Nazar es un sitio arqueológico a cielo abierto localizado en el Sistema Lagunar Hinojo-Las Tunas (región pampeana, Argentina) que fue ocupado durante el Holoceno tardío (ca. 3000 aP). En un área de 5.000 m2 se distribuyen 22 fogones, escondrijos de roca y concentraciones de rocas granitoides. En uno de los sectores excavados se registraron fogones en cubeta y el uso de huesos de Lama guanicoe (Artiodactyla, Camelidae) como combustible. El uso de combustible óseo permitió solucionar el problema de los residuos molestos para la comodidad de las personas ubicadas alrededor de los fogones. En torno a las estructuras de combustión se depositaron materiales relacionados con la subsistencia y la tecnología.Fil: Scheifler, Nahuel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Investigaciones Arqueológicas y Paleontológicas del Cuaternario Pampeano. Universidad Nacional del Centro de la Provincia de Buenos Aires. Investigaciones Arqueológicas y Paleontológicas del Cuaternario Pampeano; Argentin

    Ética na psicanálise : Freud, Lacan & Foucault

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    Considerando a linha de pesquisa problemas interdisciplinares de Ética, objetivou-se, na presente dissertação, a análise da relação da Ética na Psicanálise, além de apontar quais as contribuições da Psicanálise e suas implicações clínicas em duas correntes do pensamento psicanalítico – Sigmund Freud e Jacques Lacan, bem como na circunscrição dos campos de intersecção existentes entre a Ética e a Psicanálise por meio do pensamento filosófico de Michel Foucault. A partir do enfoque vertical utilizado, por meio de uma revisão bibliográfica, utilizando autores como Arendt (1992); Bauman (2016); Birman (2001); Foucault (1984); Freud (1915); Julien (1996); Junqueira (2011); Kehl (2002); Lacan (2008); Roudinesco (2007), demonstramos as diferenças sobre os tratamentos dados para a questão da Ética e da consciência moral na Psicanálise, assim como essas diferenças apresentam-se no estabelecimento de processos clínicos nos autores pesquisados. O presente trabalho supõe que a Filosofia, ao realizar a fundamentação de uma Ética, precisa se amparar em teorias que abordem o comportamento humano, tratem do funcionamento psíquico, ou mesmo de teorias acerca da psicogênese da Ética. Entende-se, sobretudo, que a Psicanálise cumpre essa função. Concluímos que a diversidade de modelos metapsicológicos, existentes na Psicanálise, produz diferenças na abordagem teórica da questão da Ética e da consciência moral, como também nos processos e nos objetivos clínicos por parte do Psicanalista. Sabe-se que os diferentes modelos clínicos guardam certa simetria no que concerne à Ética. Analisamos três campos de intersecção entre a Psicanálise e a Ética: o estudo dos fatores que determinam o comportamento ético e moral e sua incidência psíquica; a Psicanálise como produto de uma determinada tradição cultural; os problemas éticos colocados pela prática clínica. Finalizamos, sinalizando um outro campo de ligação entre Ética e Psicanálise – o da fundamentação da Ética.Considering the line of research interdisciplinary ethical problems aimed to the present dissertation the analysis of the relation of Ethics in Psychoanalysis, while pointing out the contributions of psychoanalysis and its clinical implications in two currents of psychoanalytic thinking – Sigmund Freud and Jacques Lacan and the circumscription of the existing intersection of fields between Ethics and Psychoanalysis through Michel Foucault’s philosophical thought. Through panoramic approach used, through a literature review, using authors as Arendt (1992); Bauman (2016); Birman (2001); Foucault (1984); Freud (1915); Julien (1996); Junqueira (2011); Kehl (2002); Lacan (2008); Roudinesco (2007), demonstrated the differences in the treatments given to the question of Ethics and moral consciousness in Psychoanalysis, and how these differences are present in the establishment of clinical processes in the aforementioned authors. We conclude that the diversity of metapsychological models, existing in Psychoanalysis produces differences in theoretical approach to the issue of Ethics and moral conscience, and also the processes and clinical objectives by the Psychoanalyst. It is well known that different clinical models keep certain symmetry regarding Ethics. Analyzing three intersecting fields between psychoanalysis and ethics: the study of the factors that determine ethical and moral behavior and their psychological consequences; Psychoanalysis as a product of a particular cultural tradition; ethical problems posed by the practice. We finish signaling another link field between Ethics and Psychoanalysis – ethical reasons

    El hijo del hombre en Daniel

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    El término de Hijo de hombre en el libro de Daniel es estudiado a continuación desde diferentes perspectivas. Por una parte, se aborda desde la filología y la estilística. Por otra parte, se analizan las estructuras y el carácter literario, los conocidos como los santos del Altísimo, las “nubes del cielo” y el “servicio” de los pueblos

    Kalamua: biologia eta dibertsitatea

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    Kalamua non edo noiz etxekotu zen ziur jakin ez arren, hizkuntz eta kultur datuetatik badakigu Asia erdialdeko edo ekialdeko zenbait lekutan aspaldi landatzen zutela. Mendeetan landatu izan da kalamua eta hainbat erabilera izan ditu urteetan zehar: ehun-zuntz gisa, olio askoko elikagai gisa, sendagai edo droga psikotropiko gisa... Lan honetan, labur azaltzen dira erabilera horien nondik norakoak eta kalamu landarearen ezaugarri morfologiko eta anatomiko bereizgarrienak deskribatzen dira, baita erabilera baterako edo besterako interesgarriak direnak aipatu ere. Horrez gain, bere biologiari buruzko xehetasunak argituko dira, sexuaren erregulazioarekin eta ugalketarekin lotutakoak behinik behin. Izan ere, kalamu-hazle eta hobetzaileentzat informazio hori ezinbestekoa da interesekoak diren kalamuaren ezaugarriak areagotzeko batik bat. Kalamua etxekotu zen unetik beretik hasi zen hobetzen, eta hautespen artifizial gogorra eta disruptiboa jasan izan du gaur egun arte. Ondorioz, bi landare multzo handi bereizi dira: psikotropikoak eta ez-psikotropikoak. Horrez gain, kalamuak, hazten den tokian hazten dela ere, landaketatik basatzeko joera handia du, eta baita edozein kalamu barietaterekin hibridatzeko ere, basatutako zein landatutakoekin. Hori dela-eta, elkarren artean bereiztea oso zailak diren kalamuaren forma ugari sortu dira eta espeziearen interpretazioa zaila gertatzen da. Gaur egun, taxonomiaren ikuspegi nagusiaren arabera, kalamua espezie bakarra dela onartzen da, Cannabis sativa alegia, eta osagai psikotropikoen kopuruaren arabera bi subespezie desberdindu dira: C. sativa subsp.sativa eta C. sativa subsp. indica. Aldi berean, subespezie bakoitzak bi barietate ditu; batean landatutako landareak sartzen dira eta bestean basatutakoak. Subespezie eta barietateon nomenklatura eta morfologi xehetasunak eskaintzen dira, baita egungo erabilerari buruzko zenbait zehaztapen ere

    R. P. Romualdo Galdós, S. J. (1885-1953)

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    Una muerte repentina pone fin a la vida científica y docente del Reverendo P. Romualdo Galdós. El día 22 de diciembre tiene normalmente su última clase antes de las vacaciones navideñas en el Colegio Máximo de Oña. Muy poco después de la medianoche del 25 muere serenamente en Eibar, donde ejercitaba sus ministerios sacerdotales, a la hora escasa del primer síntoma de edema pulmonar
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