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Sample records for cambrian uruguay grupo

  1. Grupos organizados y partidos desorganizados: incentivos electorales en Uruguay

    Directory of Open Access Journals (Sweden)

    Scott MORGENSTERN

    2010-07-01

    Full Text Available El presente artículo aplica el estudio de la organización de partidos y el voto legislativo a sistemas de partidos con facciones. Tras desarrollar una clasificación de los diferentes tipos de facciones, se argumenta que las facciones jerárquicamente organizadas responden a un sistema competitivo de incentivos. Pese a que las facciones tienen intereses que las empujan a trabajar juntas por el bien del partido, al mismo tiempo, tienen interés en diferenciarse unas de otras por propósitos electorales. Además, el ciclo electoral dirige los pesos de estas presiones competitivas provocando la ruptura en la cooperación entre las facciones conforme se aproximan las elecciones. Estas pautas e incentivos son particularmente evidentes en el caso de Uruguay, por lo que el artículo utiliza datos del voto nominal del Legislativo del país para probar estos argumentos.

  2. Uruguay

    OpenAIRE

    Martínez Carril, Manuel

    2016-01-01

    El cine como expresión artística y creativa surge en Uruguay hace quince años. Pero la afirmación en el país de una creación cultural y artística (literaria, plástica, teatral, musical y crítica formativa) fue un proceso de mediados del siglo XX que se extinguió con la dictadura militar de 1971. Este artículo intenta demostrar cómo una acción de cultura cinematográfica, a través de Cinemateca Uruguaya, produjo desde 1993 lo que había sido imposible entre 1939 y los años sesenta en condiciones...

  3. Uruguay

    OpenAIRE

    Martínez Carril, Manuel

    2016-01-01

    Le cinéma comme expression artistique et créative est apparu en Uruguay il y a quinze ans. Mais l’affirmation dans le pays d’une création culturelle et artistique (littéraire, plastique, théâtrale, musicale et critique) fut un processus du milieu du XXe siècle qui s’est éteint avec la dictature militaire de 1971. Cet article essaie de démontrer comment a été menée depuis 1993, une action culturelle cinématographique, à travers la Cinémathèque Uruguayenne, ce qui s’était avéré impossible entre...

  4. Organized factions and disorganized parties: electoral incentives in Uruguay Grupos organizados y partidos desorganizados: incentivos electorales en Uruguay

    Directory of Open Access Journals (Sweden)

    Scott MORGENSTERN

    2010-07-01

    Full Text Available This paper extends the study of party organization and legislative voting to factionalize party systems. After developing a typology of factional types, it argues that hierarchically organized factions respond to a competing incentive system. Factions have interests that push them to work together for the good of the party, but at the same time, they have interests in distinguishing themselves for electoral purposes. Further, the electoral cycle drives the weights of these competing pressures, leading factional cooperation to break down as elections near. These patterns and incentives are particularly evident in Uruguay, and the paper uses roll-call data from that country's legislature to test the propositionsEl presente artículo aplica el estudio de la organización de partidos y el voto legislativo a sistemas de partidos con facciones. Tras desarrollar una clasificación de los diferentes tipos de facciones, se argumenta que las facciones jerárquicamente organizadas responden a un sistema competitivo de incentivos. Pese a que las facciones tienen intereses que las empujan a trabajar juntas por el bien del partido, al mismo tiempo, tienen interés en diferenciarse unas de otras por propósitos electorales. Además, el ciclo electoral dirige los pesos de estas presiones competitivas provocando la ruptura en la cooperación entre las facciones conforme se aproximan las elecciones. Estas pautas e incentivos son particularmente evidentes en el caso de Uruguay, por lo que el artículo utiliza datos del voto nominal del Legislativo del país para probar estos argumentos.

  5. Los grupos del magisterio racionalista en Argentina y Uruguay hacia 1910 y sus actitudes ante la enseñanza laica oficial

    Directory of Open Access Journals (Sweden)

    Pere SOLÀ I GUSSINYER

    2010-03-01

    Full Text Available RESUMEN: Este trabajo versa sobre los grupos del magisterio racionalista en Argentina, y sobre todo Uruguay, a principios de la segunda década de este siglo, y su actitud frente a la enseñanza básica público-estatal, de carácter más o menos laico. Se sabe que el movimiento docente racionalista, según el modelo de Bakunin, Robin y Francisco Ferrer, y sobre una base libertaria y laicista radical, suponía un modelo alternativo de educación popular hacia 1910, de carácter público no estatal. En este estudio vamos a ver qué planteamientos ofrece este movimiento en algunos de los países más avanzados social y culturalmente de América Latina por aquellas fechas. También intentaremos evaluar algunas de las razones del relativo o total fracaso de proyectos significativos de educación laico-racionalista e integral del tipo del de la Liga Popular para la educación razonada de la infancia (L.P.E.R.I. en Uruguay. Muchos son los interrogantes que un propósito como el que anima este estudio plantea. Nos permitimos hacer un inventario de ellos en la conclusión. Pero ni que decir tiene que sólo investigaciones posteriores y mucho acopio de material documental in situ permitirán darles cumplida respuesta. Aquí y ahora, sólo se trata de poner un granito de arena al esclarecimiento del racionalismo educativo en América Latina.

  6. How Immigrants. Have Shapped Uruguay

    Directory of Open Access Journals (Sweden)

    Felipe Arocena

    2009-01-01

    Full Text Available Este texto presenta un análisis comparativo de cómo nueve grupos de migrantes y un sector de población negra, llevados como esclavos, han conformado la cultura de Uruguay. La imagen más común de Uruguay, tanto en el propio país como en el extranjero, es la de una nación homogénea y europeizada construida por inmigrantes de España e Italia, sin la presencia de una gran población de ascendencia africana y sin nativos. Esta imagen, en el mejor de los casos, es una verdad a medias, porque también ha habido contribuciones de inmigrantes de Asia, de Rusia, de otros países europeos y también de esclavos africanos y sus descendientes. En particular analizaremos cómo personas de ascendencia africana, vascos, italianos, suizos, rusos, armenios, libaneses, judíos, musulmanes y peruanos han contribuido en la construcción de la nación uruguaya. Asimismo, examinaremos el impacto de esta migración en la sociedad y la cultura de Uruguay. Este texto presenta las conclusiones más importantes de una investigación fundamentada en casi cien entrevistas a profundidad con personas descendientes de dichas comunidades.

  7. Uruguay in International Relations

    OpenAIRE

    Anton Sergeevich Andreev

    2015-01-01

    This article analyzes the foreign policy of the leftist government of Uruguay at the beginning of the XXI century. Latin America is an important actor in the process of creating a multipolar world, and Uruguay becomes one of the political and economic centers of the continent. One of the important political processes in South America is a regional integration which has many forms. This article shows the main areas of Uruguay diplomacy in various integration formations of the region. Based on ...

  8. Uruguay in International Relations

    Directory of Open Access Journals (Sweden)

    Anton Sergeevich Andreev

    2015-12-01

    Full Text Available This article analyzes the foreign policy of the leftist government of Uruguay at the beginning of the XXI century. Latin America is an important actor in the process of creating a multipolar world, and Uruguay becomes one of the political and economic centers of the continent. One of the important political processes in South America is a regional integration which has many forms. This article shows the main areas of Uruguay diplomacy in various integration formations of the region. Based on the analysis of the program of the third government of “Broad Front” article shows the goals and objectives of the country in the processes of regional integration, the problems and prospects of these processes. The author notes that the Government of Uruguay is looking for creating common political and economic institutions for the united Latin American continent. In the new political and economic conditions Uruguay becomes important partner for the BRICS countries as well as for the EU and the United States. The article shows the prospects for Uruguay in the BRICS in the context of changing the place of developing countries in the architecture of the global world, as well as in the context of the participation of ex-President Jose Mujica in the BRICS summit 2014. Currently, Uruguay is standing in front of a political choice, because the country has people who want the development of relations with the United States as economic partner and political center of the region. Also in Uruguay are supporters of the development of relations with the EU. The paper shows the tasks and objectives of Uruguay's foreign policy towards the US and the EU, as well as a place of Uruguay in the foreign policy of major actors of international relations. The article says the prospects for the foreign policy of Uruguay in the context of the presidential and parliamentary elections in 2014, a new government and the conservation status of Uruguay as a country of “left turn

  9. Uruguay - Surface Weather Observations

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Surface weather observation forms for 26 stations in Uruguay. Period of record 1896-2005, with two to eight observations per day. Files created through a...

  10. IDRC in Uruguay

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

    up opportuni- ties to the promising initiatives they finance. □ Climate change in coastal areas. Funding for Uruguay: $207,000. Duration: 2011-2014. Grantee: Instituto Internacional de Medio. Ambiente y Desarrollo — América Latina,. Argentina.

  11. Causes of the Cambrian Explosion

    National Research Council Canada - National Science Library

    M. Paul Smith; David A. T. Harper

    2013-01-01

    .... Recent hypotheses for the Cambrian explosion fall into three main categories: developmental/genetic, ecologic, and abiotic/environmental, with geochemical hypotheses forming an abundant and distinctive subset of the last...

  12. El IDRC en Uruguay

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

    dictadura de los años 70 y comienzos de los 80. En efecto, con apoyo del IDRC, el. Centro de Informaciones y Estudios del. Uruguay contribuyó al debate de las políticas en las consultas multipartidarias durante la transición hacia la democracia a mediados de los años 80. También ayudó a elaborar la agenda política del.

  13. Genesis of early Cambrian phosphorite of Krol Belt, Lesser Himalaya

    Digital Repository Service at National Institute of Oceanography (India)

    Mazumdar, A.; Banerjee, D.M.

    for the modern Peru–Chile shelf–slope phosphorite is inadequate to explain the genesis of Cambrian phosphorite. Physicochemical characters of the Cambrian phosphorites demand a shallow marine phosphorous source. Based on the available early Cambrian oceanographic...

  14. Taking the pulse of the cambrian radiation.

    Science.gov (United States)

    Lieberman, Bruce S

    2003-02-01

    The Cambrian radiation is that key episode in the history of life when a large number of animal phyla appeared in the fossil record over a geologically short period of time. Over the last 20 years, scientific understanding of this radiation has increased significantly. Still, fundamental questions remain about the timing of the radiation and also the tempo of evolution. Trilobites are an excellent group to address these questions because of their rich abundance and diversity. Moreover, their complex morphology makes them readily amenable to phylogenetic analysis, and deducing the nature of macroevolutionary processes during the Cambrian radiation requires an understanding of evolutionary patterns. Phylogenetic biogeographic analysis of Early Cambrian olenellid trilobites, based on a modified version of Brooks Parsimony Analysis, revealed the signature of the breakup of Pannotia, a tectonic event that most evidence suggests is constrained to the interval 600 to 550 Ma. As trilobites are derived metazoans, this suggests the phylogenetic proliferation associated with the Cambrian radiation was underway tens of millions of years before the Early Cambrian, although not hundreds of millions of years as some have argued.Phylogenetic information from Early Cambrian olenellid trilobites was also used in a stochastic approach based on two continuous time models to test the hypothesis that rates of speciation were unusually high during the Cambrian radiation. No statistical evidence was found to support this hypothesis. Instead, rates of evolution during the Cambrian radiation, at least those pertaining to speciation, were comparable to those that have occurred during other times of adaptive or taxic radiation throughout the history of life.

  15. La democracia directa en Uruguay

    Directory of Open Access Journals (Sweden)

    Rodolfo González Rissoto

    2008-07-01

    Full Text Available Describe la trayectoria de Uruguay como uno de los países del mundo con una larga y rica tradición en el uso de los institutos de democracia directa. En Uruguay plebiscito y referéndum son conceptos distintos. El plebiscito en el ordenamiento institucional uruguayo no constituye un instituto de democracia directa, sino simplemente una etapa, la última, en un proceso de reforma constitucional. En tanto el referéndum supone el ejercicio de un derecho previsto expresamente en la Constitución de la República, con la finalidad de intentar derogar o abrogar una norma de rango legal. Adiciona un cuadro o tabla donde se analiza el empleo de los institutos de democracia directa en Uruguay durante los últimos cincuenta y cinco años, que incluye también los plebiscitos.

  16. Sinopsis de Aristida (Poaceae para Uruguay

    Directory of Open Access Journals (Sweden)

    F Lezama

    2012-06-01

    Full Text Available Se presenta una sinopsis de Aristida para Uruguay, incluyendo una clave a nivel de especie. Se cita por primera vez para Uruguay Aristida flaccida Trin. & Rupr. a partir de material recolectado en pastizales de la zona de sierras del noroeste del departamento de Treinta y Tres.; esta especie es descripta e ilustrada.Synopsis of Aristida (Poaceae for Uruguay. A synopsis of Aristida for Uruguay is presented, including a key to its species. Aristida flaccida Trin. & Rupr. is reported for the first time for the flora of Uruguay from material collected in hilly grasslands in the northwestern of Treinta y Tres department; this species is described and illustrated.

  17. Rainwater composition in northeast Uruguay

    CSIR Research Space (South Africa)

    Zunckel, M

    2003-04-01

    Full Text Available The aim in this paper is threefold: firstly to gain an initial understanding of rainwater chemistry in the northeast of Uruguay; secondly to identify possible sources that contribute to its chemical composition; and thirdly to establish a baseline...

  18. Upper lower Cambrian (provisional Cambrian Series 2 trilobites from northwestern Gansu Province, China

    Directory of Open Access Journals (Sweden)

    Jan Bergström†

    2014-08-01

    Full Text Available Upper lower Cambrian (provisional Cambrian Series 2 trilobites are described from three sections through the Shuangyingshan Formation in the Beishan area, northwestern Gansu Province, China. The trilobite fauna is dominated by eodiscoid and corynexochid trilobites, together representing at least ten genera: Serrodiscus, Tannudiscus, Calodiscus, Pagetides, Kootenia, Edelsteinaspis, Ptarmiganoides?, Politinella, Dinesus and Subeia. Eleven species are described, of which seven are identified with previously described taxa and four described under open nomenclature. The composition of the fauna suggests biogeographic affinity with Siberian rather than Gondwanan trilobite faunas, and the Cambrian Series 2 faunas described herein and from elsewhere in northwestern China seem to be indicative of the marginal areas of the Siberian palaeocontinent. This suggests that the Middle Tianshan–Beishan Terrane may have been located fairly close to Siberia during middle–late Cambrian Epoch 2.

  19. Diversity partitioning during the Cambrian radiation.

    Science.gov (United States)

    Na, Lin; Kiessling, Wolfgang

    2015-04-14

    The fossil record offers unique insights into the environmental and geographic partitioning of biodiversity during global diversifications. We explored biodiversity patterns during the Cambrian radiation, the most dramatic radiation in Earth history. We assessed how the overall increase in global diversity was partitioned between within-community (alpha) and between-community (beta) components and how beta diversity was partitioned among environments and geographic regions. Changes in gamma diversity in the Cambrian were chiefly driven by changes in beta diversity. The combined trajectories of alpha and beta diversity during the initial diversification suggest low competition and high predation within communities. Beta diversity has similar trajectories both among environments and geographic regions, but turnover between adjacent paleocontinents was probably the main driver of diversification. Our study elucidates that global biodiversity during the Cambrian radiation was driven by niche contraction at local scales and vicariance at continental scales. The latter supports previous arguments for the importance of plate tectonics in the Cambrian radiation, namely the breakup of Pannotia.

  20. Returns to schooling in Uruguay

    OpenAIRE

    Graciela Sanromán

    2006-01-01

    In this paper we analyze the economic returns to schooling in Uruguay. Instrumental variables are used to estimate mean and quantile regressions. An indicator of whether an Internet connection is available at home is used as an instrument for the years of schooling of the household head. The evidence shows that the simple Mincer OLS estimates are downward biased. When estimates are controlled for measurement error in schooling reports the results indicate that an additional year of schooling ...

  1. Wind power assessment in Uruguay

    Energy Technology Data Exchange (ETDEWEB)

    Cataldo, J. [Universidad de la Republica, Montevideo (Uruguay). Instituto de Mecanica de los Fluidos e Ingenieria Ambiental; Nunes, V. [Universidad de la Republica, Montevideo (Uruguay). Instituto de Ingeneria Electrica

    1996-09-01

    The wind power as a large alternative energy source appear in Uruguay. A nested method to obtain the mean wind velocity time series at complex terrain sites and describe the turbulence was developed. Sites with mean velocity over 9m/s and capacity factor over 40% were found. The aerodynamic interferences loss between wind generators using a numerical model were evaluated and a numerical model was developed to design an optimal cluster wind farm. As bulk result, an installed capacity of 300MW with a cost production less than 0.065U$S/kW.h can be estimated over the all studied Region. (author)

  2. An Early Cambrian stem polychaete with pygidial cirri

    OpenAIRE

    Vinther, Jakob; Eibye-Jacobsen, Danny; Harper, David A.T.

    2011-01-01

    The oldest annelid fossils are polychaetes from the Cambrian Period. They are representatives of the annelid stem group and thus vital in any discussion of how we polarize the evolution of the crown group. Here, we describe a fossil polychaete from the Early Cambrian Sirius Passet fauna, Pygocirrus butyricampum gen. et sp. nov., with structures identified as pygidial cirri, which are recorded for the first time from Cambrian annelids. The body is slender and has biramous parapodia with chaeta...

  3. Essential oils of Mentha pulegium and Mentha rotundifolia from Uruguay

    Directory of Open Access Journals (Sweden)

    Daniel Lorenzo

    2002-12-01

    Full Text Available Essential oils obtained by hydrodistillation from leaves of Mentha pulegium L. and Mentha rotundifolia (L. Huds. from Uruguay were analysed by GC-FID and GC-MS. Oxygen-containing monoterpenes were the main group of constituents in both oils. Pulegone, isomenthone and menthone were the major components in the oil of M. pulegium, whereas piperitenone oxide and (Z-sabinene hydrate were the major ones in M. rotundifolia. Enantiomerically pure (--menthone, (+-isomenthone, (+-isomenthol, (--menthol and (+-pulegone were detected by multidimensional gas chromatography in the case of M. pulegium oil.Óleos essenciais obtidos por hidrodestilação das folhas de Mentha pulegium L. e Mentha rotundifolia (L. Huds. do Uruguay foram analisados por GC-FID e GC-MS. O grupo de monoterpenes oxigenados foi o mais importante em ambos os óleos, sendo que a pulegona, isomenthona e menthona foram os constituintes maioritarios no óleo de Mentha pulegium, no entanto, o ôxido de piperitenona e (Z-hidrato de sabineno foram os maioritarios na Mentha rotundifolia. (--mentone, (+-isomentone, (+-isomenthol, (--menthol e (+-pulegone enantioméricamente puras foram detectadas por cromatografía gasosa multidimensional no caso do óleo de Mentha pulegium.

  4. El Centro de Cardioestimuladores del Uruguay. CCC Medical Devices

    Directory of Open Access Journals (Sweden)

    Pablo Darscht

    2011-05-01

    Full Text Available Estudio de caso del Centro de Cardioestimuladores del Uruguay - CCC Medical Devices preparado a solicitud de Ingenio en el marco del proyecto financiado por la Iniciativa para Incubadoras de InfoDev - Grupo Banco Mundial. Este estudio detalla los pasos seguidos por una empresa nacional con un fuerte factor de innovación y los cambios producidos en el entorno de los negocios de la empresa. El comienzo de una pequeña empresa de marcapasos que tras pasar por diferentes etapas hoy gana mercados en el área de ingeniería para dispositivos médicos para diferentes empresas de investigación biomédica a nivel internacional.AbstractCase study of the Centro de Cardioestimuladores del Uruguay - CCC Medical Devices prepared on behalf of Ingenio within the project financed by de Incubator Initiative of InfoDev-World Bank Group. This study refers to the steps followed by a highly innovative local company and to the changes in its business environment. The start up of a small pacemakers company that after going through different stages is presently increasing its market share in the area of engineering of medical devices for biomedic research companies worldwide.

  5. Los caminos del patrimonio en Uruguay.

    OpenAIRE

    Rodríguez, Alejandro Giménez

    2012-01-01

    El objetivo central es, mediante una retrospectiva, trazar un panorama general de lo que ha sido la evolución de las concepciones patrimoniales en el Uruguay desde sus orígenes. No como una mera enumeración de fechas y acontecimientos, sino como una visión del pasado que parece fundamental para entender lo que sucede en el presente y proyectar los desafíos del futuro.Palabras Clave: Historia; patrimonio; UruguayThe courses of cultural heritage in UruguayAbstractThe central objective is, throu...

  6. Las Veliidae y Gerridae del Uruguay (Hemiptera The Veliidae and Gerridae from Uruguay (Hemiptera

    Directory of Open Access Journals (Sweden)

    Silvia A. Mazzucconi

    2003-12-01

    Full Text Available Se citan por primera vez del Uruguay a Rhagovelia novana Drake, Microvelia mimula White (Veliidae, y Metrobates plaumanni plaumanni Hungerford (Gerridae; se agregan nuevos registros de las especies ya conocidas de este país. Con estas citas el número de especies conocidas del Uruguay es de tres de Veliidae y tres de Gerridae.Rhagovelia novana Drake, Microvelia mimula White (Veliidae, and Metrobates plaumanni plaumanni Hungerford (Gerridae are recorded for the first time from Uruguay; new records of the species already known from this country are added. Herewith the number of species known to occur in Uruguay is three of Veliidae and three of Gerridae.

  7. Ichnology of the Early Cambrian Tal Group, Mussoorie Syncline ...

    Indian Academy of Sciences (India)

    blage along with earlier ichnofossils and other faunal occurrences substantiates the assignment of Early. Cambrian age to the ... Trace fossils; Dhaulagiri Formation; Tal Group; Early Cambrian; Lesser Himalaya; India. J. Earth Syst. Sci. 122, No ..... Middlemiss C S 1887 Physical geology of west British. Garhwal with notes on ...

  8. Early Cambrian palaeogeography and the probable Iberia Siberia connection

    Science.gov (United States)

    Gubanov, Alexander P.

    2002-07-01

    The end of the Proterozoic-beginning of the Cambrian is marked by some of the most dramatic events in the history of Earth. The fall of the Ediacaran biota, followed by the Cambrian Explosion of skeletonised bilaterians, a pronounced shift in oceanic and atmospheric chemistry and rapid climatic change from 'snowball earth' to 'greenhouse' conditions all happened within a rather geologically short period of time. These events took place against a background of the rearrangement of the prevailing supercontinent; some authors view this as a sequence of individual supercontinents such as Mesoproterozoic Midgardia, Neoproterozoic Rodinia and Early Cambrian Pannotia. Assembled in the Mesoproterozoic, this supercontinent appears to have existed through the Neoproterozoic into the Early Cambrian with periodic changes in configuration. The final rearrangement took place during the Precambrian-Cambrian transition with the Cadomian and related phases of the Pan-African orogeny. The distribution of Early Cambrian molluscs and other small shelly fossils (SSF) across all continents indicates a close geographic proximity of all major cratonic basins that is consistent with the continued existence of the supercontinent at that time. Subsequently, Rodinia experienced breakup that led to the amalgamation of Gondwana, separation of Laurentia, Baltica, Siberia and some small terranes and the emergence of oceanic basins between them. Spreading oceanic basins caused a gradual geographic isolation of the faunal assemblages that were united during the Vendian-Early Cambrian.

  9. All projects related to Uruguay | Page 5 | IDRC - International ...

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

    Region: Brazil, South America, Chile, Costa Rica, North and Central America, Mexico, Uruguay. Program: ... Region: Argentina, South America, Brazil, Chile, Colombia, Mexico, North and Central America, Uruguay. Program: ... Topic: SOCIAL PARTICIPATION, Civil society, HEALTH SYSTEM, Evaluation. Region: Argentina ...

  10. Evidence for monophyly and arthropod affinity of cambrian giant predators.

    Science.gov (United States)

    Chen, J Y; Ramsköld, L; Zhou, G Q

    1994-05-27

    The Chinese Early Cambrian Chengjiang fauna includes three different anomalocaridids, a globally spread, extinct marine group including the largest known Cambrian animals. Anomalocaridids were active predators, and their presence implies that a complex ecosystem appeared abruptly in the earliest Phanerozoic. Complete specimens display several sets of characters shared only with some other exclusively Cambrian forms. This evidence indicates that anomalocaridids, Opabinia, and Kerygmachela form a monophyletic clade. Certain features indicate arthropod affinities of the lade, and for this group an unnamed (sub)phylum-level taxon within an arthropod (super)phylum is proposed.

  11. Early Cambrian oxygen minimum zone-like conditions at Chengjiang

    DEFF Research Database (Denmark)

    Hammarlund, Emma U.; Gaines, Robert R.; Prokopenko, Maria G.

    2017-01-01

    chemistry, following the oxygenation of the surface ocean and of shallow marine environments during the Ediacaran Period, but prior to the establishment of a predominantly oxygenated deep ocean in the mid-Paleozoic. Despite recent attention, a detailed understanding of the chemical conditions that prevailed......The early Cambrian succession at Chengjiang contains the most diverse Cambrian fossil assemblage yet described, and contributes significantly to our understanding of the diversification of metazoans in the Cambrian “explosion”. The Cambrian Period occupies a transitional episode of global ocean......-column chemistry within the succession, which progressively shifted from euxinic to oxic conditions during deposition of the Yu’anshan Formation. The Chengjiang biota occurs in strata that appear to have been deposited under an oxygen-depleted water column that may have supported denitrification, as in modern...

  12. Nonbiomineralized carapaces in Cambrian seafloor landscapes (Sirius Passet, Greenland)

    DEFF Research Database (Denmark)

    Mangano, M. Gabriela; Bromley, Richard Granville; Harper, David A. T.

    2012-01-01

    -caliber structures with dendritic terminations, and annulated burrows are abundant in the Early Cambrian Sirius Basset Lagerstatte (Greenland). Taphonomic controls were partially responsible for the pronounced association of these structures and carapaces, but ecologic conditions are envisioned as playing...

  13. The oldest brachiopods from the lower cambrian of South Australia

    DEFF Research Database (Denmark)

    Topper, Timothy Paul; Holmer, Lars E.; Skovsted, Christian B.

    2013-01-01

    The morphology and organophosphatic shell structure of the paterinate brachiopod Askepasma is documented using new and previously collected specimens from the lower Cambrian of South Australia. Lack of adequately preserved material has seen the majority of paterinate specimens previously reported...... from South Australia referred to the genus Askepasma and treated under open nomenclature. Large collections of paterinates from the lower Cambrian Wilkawillina, Ajax, and Wirrapowie limestones in the Arrowie Basin, South Australia have prompted redescription of the type species Askepasma toddense...... and the erection of a new species, Askepasma saproconcha sp. nov. Askepasma saproconcha sp. nov. currently represents the oldest known brachiopod from the lower Cambrian successions in South Australia with a FAD in pre-trilobitic (Terreneuvian, Cambrian Stage 2, lower Atdabanian) strata in the basal part...

  14. An Early Cambrian stem polychaete with pygidial cirri

    Science.gov (United States)

    Vinther, Jakob; Eibye-Jacobsen, Danny; Harper, David A. T.

    2011-01-01

    The oldest annelid fossils are polychaetes from the Cambrian Period. They are representatives of the annelid stem group and thus vital in any discussion of how we polarize the evolution of the crown group. Here, we describe a fossil polychaete from the Early Cambrian Sirius Passet fauna, Pygocirrus butyricampum gen. et sp. nov., with structures identified as pygidial cirri, which are recorded for the first time from Cambrian annelids. The body is slender and has biramous parapodia with chaetae organized in laterally oriented bundles. The presence of pygidial cirri is one of the characters that hitherto has defined the annelid crown group, which diversified during the Cambrian–Ordovician transition. The newly described fossil shows that this character had already developed within the total group by the Early Cambrian. PMID:21733871

  15. Primitive soft-bodied cephalopods from the Cambrian.

    Science.gov (United States)

    Smith, Martin R; Caron, Jean-Bernard

    2010-05-27

    The exquisite preservation of soft-bodied animals in Burgess Shale-type deposits provides important clues into the early evolution of body plans that emerged during the Cambrian explosion. Until now, such deposits have remained silent regarding the early evolution of extant molluscan lineages-in particular the cephalopods. Nautiloids, traditionally considered basal within the cephalopods, are generally depicted as evolving from a creeping Cambrian ancestor whose dorsal shell afforded protection and buoyancy. Although nautiloid-like shells occur from the Late Cambrian onwards, the fossil record provides little constraint on this model, or indeed on the early evolution of cephalopods. Here, we reinterpret the problematic Middle Cambrian animal Nectocaris pteryx as a primitive (that is, stem-group), non-mineralized cephalopod, based on new material from the Burgess Shale. Together with Nectocaris, the problematic Lower Cambrian taxa Petalilium and (probably) Vetustovermis form a distinctive clade, Nectocarididae, characterized by an open axial cavity with paired gills, wide lateral fins, a single pair of long, prehensile tentacles, a pair of non-faceted eyes on short stalks, and a large, flexible anterior funnel. This clade extends the cephalopods' fossil record by over 30 million years, and indicates that primitive cephalopods lacked a mineralized shell, were hyperbenthic, and were presumably carnivorous. The presence of a funnel suggests that jet propulsion evolved in cephalopods before the acquisition of a shell. The explosive diversification of mineralized cephalopods in the Ordovician may have an understated Cambrian 'fuse'.

  16. Uruguay valitsus hakkab riiki korrastama / Allan Espenberg

    Index Scriptorium Estoniae

    Espenberg, Allan

    2005-01-01

    Esimest korda tuleb nii valitsuse kui parlamendi tasandil Uruguays võimule vasakpoolne koalitsioon, mis suutis eemale tõrjuda kokku 174 aastat võimul olnud kahte parteid. Uueks presidendiks sai Tabare Vazquez, kelle poolt hääletasid pooled valijad

  17. [Smoking during pregnancy in Argentina and Uruguay].

    Science.gov (United States)

    Althabe, Fernando; Colomar, Mercedes; Gibbons, Luz; Belizán, José M; Buekens, Pierre

    2008-01-01

    Argentina and Uruguay are among the countries in which a large proportion of young women smoke. The rate of smokers during pregnancy in both countries is not well known, and data on the characteristics of women who quit smoking during pregnancy compared to those who continue smoking are not available. We conducted a survey including 1512 pregnant women > or = 18 years old (796 in Argentina; 716 in Uruguay), during antenatal visits in public hospitals of large urban regions; 44% of the women in Argentina and 53% in Uruguay had been or were regular smokers. 11% of the surveyed women in Argentina and 18% in Uruguay continued smoking during pregnancy. In both countries, the proportion of women who lived with smokers, allowed smoking at home, and were regularly or always exposed to tobacco smoke indoors, were 49%, 46% and 20% in the subgroup of women who never smoked, 67%, 60% and 32% in those who quit, and 78%, 75% and 52% in those who continued smoking, respectively. The study confirms a serious public health problem in both countries, and documents that environmental exposure persists in subgroups of women, even in those who quit smoking. It is important that the public health sector should provide access to effective programs for smoking cessation, to women who smoke during pregnancy. For the development of a new program, any intervention intending to have at least a moderate and sustainable success, it should seriously consider including components targeting the smoking environment of the pregnant women who smoke.

  18. Early Cambrian oxygen minimum zone-like conditions at Chengjiang

    Science.gov (United States)

    Hammarlund, Emma U.; Gaines, Robert R.; Prokopenko, Maria G.; Qi, Changshi; Hou, Xian-Guang; Canfield, Donald E.

    2017-10-01

    The early Cambrian succession at Chengjiang contains the most diverse Cambrian fossil assemblage yet described, and contributes significantly to our understanding of the diversification of metazoans in the Cambrian ;explosion;. The Cambrian Period occupies a transitional episode of global ocean chemistry, following the oxygenation of the surface ocean and of shallow marine environments during the Ediacaran Period, but prior to the establishment of a predominantly oxygenated deep ocean in the mid-Paleozoic. Despite recent attention, a detailed understanding of the chemical conditions that prevailed in early Cambrian marine settings and the relationship of those conditions to early metazoan ecosystems is still emerging. Here, we report multi-proxy geochemical data from two drill cores through the early Cambrian (Series 2) Yu'anshan Formation of Yunnan, China. Results reveal dynamic water-column chemistry within the succession, which progressively shifted from euxinic to oxic conditions during deposition of the Yu'anshan Formation. The Chengjiang biota occurs in strata that appear to have been deposited under an oxygen-depleted water column that may have supported denitrification, as in modern oxygen-minimum zones. The oxygenated benthic environments in which the Chengjiang biota thrived were proximal to, but sharply separated from, the open ocean by a persistent anoxic water mass that occupied a portion of the outer shelf. Oxygen depletion in the lower water column developed dynamically in response to nutrient availability and possibly at lower thresholds of productivity due to lower atmospheric oxygen concentrations in Cambrian. These findings suggest that the frequent development of oxygen-limiting conditions in continental margin settings provided an environmental barrier that may have affected biogeographic, ecological and evolutionary development of early metazoan communities.

  19. New reticulosan sponges from the middle Cambrian of Sonora, Mexico

    Directory of Open Access Journals (Sweden)

    Matilde Sylvia Beresi

    2017-11-01

    Full Text Available A small assemblage of extremely well-preserved fragments of new sponges has been discovered in calcipelites of the middle Cambrian El Mogallón Formation in the Cerro El Mogallón section, near Arivechi in eastern Sonora, Mexico. The assemblage includes two new reticulosan species referred to Ratcliffespongia arivechensis sp. nov. and Valospongia sonorensis sp. nov., combined with disarticulated remains assigned to Kiwetinokia and additional, currently unidentifiable taxa. The new species represent the first records of these Cambrian genera from Mexico, although they are widely distributed at low latitudes, being previously best known from Utah but extending through Laurentia and South China. This middle Cambrian fauna indicates that there was considerable continuity of the deeper-water hexactinellid sponges between the warm peri-platform of Laurentia and the peri-continental Cambrian platform of Sonora. The new material supports the impression of extremely wide distribution of Cambrian sponge genera, with local diversification at species level within regions, in contrast to much greater generic-level endemism during the Ordovician Period.

  20. Grupos ganglionares superficiales

    OpenAIRE

    Cebrià Iranzo, M. Àngels

    2010-01-01

    Los grupos ganglionares son los puntos hacia los cuales se debe dirigir la linfa, y por lo tanto la dirección y el sentido de las manipulaciones del drenaje linfático manual. Estos se distribuyen por todo el cuerpo: cara y cuello, pecho, miembro superior, abdomen y miembro inferior.

  1. Proterozoic and early Cambrian protists: evidence for accelerating evolutionary tempo

    Science.gov (United States)

    Knoll, A. H.

    1994-01-01

    In rocks of late Paleoproterozoic and Mesoproterozoic age (ca. 1700-1000 million years ago), probable eukaryotic microfossils are widespread and well preserved, but assemblage and global diversities are low and turnover is slow. Near the Mesoproterozoic-Neoproterozoic boundary (1000 million years ago), red, green, and chromophytic algae diversified; molecular phylogenies suggest that this was part of a broader radiation of "higher" eukaryotic phyla. Observed diversity levels for protistan microfossils increased significantly at this time, as did turnover rates. Coincident with the Cambrian radiation of marine invertebrates, protistan microfossils again doubled in diversity and rates of turnover increased by an order of magnitude. Evidently, the Cambrian diversification of animals strongly influenced evolutionary rates, within clades already present in marine communities, implying an important role for ecology in fueling a Cambrian explosion that extends across kingdoms.

  2. Cambrian stalked echinoderms show unexpected plasticity of arm construction.

    Science.gov (United States)

    Zamora, S; Smith, A B

    2012-01-22

    Feeding arms carrying coelomic extensions of the theca are thought to be unique to crinoids among stemmed echinoderms. However, a new two-armed echinoderm from the earliest Middle Cambrian of Spain displays a highly unexpected morphology. X-ray microtomographic analysis of its arms shows they are polyplated in their proximal part with a dorsal series of uniserial elements enclosing a large coelomic lumen. Distally, the arm transforms into the more standard biserial structure of a blastozoan brachiole. Phylogenetic analysis demonstrates that this taxon lies basal to rhombiferans as sister-group to pleurocystitid and glyptocystitid blastozoans, drawing those clades deep into the Cambrian. We demonstrate that Cambrian echinoderms show surprising variability in the way their appendages are constructed, and that the appendages of at least some blastozoans arose as direct outgrowths of the body in much the same way as the arms of crinoids.

  3. Perspectives of the wind power generation in Uruguay; Perspectivas de la generacion eolica en Uruguay

    Energy Technology Data Exchange (ETDEWEB)

    Gomez, Daniel Luis [Administracion Nacional de Usinas y Transmisiones Electricas (UTE), Montevideu (Uruguay)

    2004-07-01

    The objective of this paper is to describe, the journey for the development of power generation through source of wind, and to establish the elements that must be overcome to enable implementation of wind projects in Uruguay. For its achievement will be a descriptive framework that has been developing wind energy in the region, particularly as it relates to the Argentine case, as opposed to activities in the Uruguay in the same period. Carry out a review and interrelation between the greenhouse effect, the internalization of environmental costs and sustainable development concept, as well as analyzing the input of emissions to the environment by issuing sector. It will describe, briefly, the composition of the matrix of power generation in Uruguay. Subsequently analyzing the history of wind energy in Uruguay, the results of this experience and will be explored regarding the existence or absence of incentives within the existing legal framework. Finally, described the wind power perspectives in Uruguay and propound what will be the key steps and tools necessary to facilitate the development of this source of generation in the country.

  4. CONSORCIOS TECNOLÓGICOS EN ARGENTINA, CHILE, COLOMBIA Y URUGUAY

    Directory of Open Access Journals (Sweden)

    Roberto Álvarez E.

    2012-01-01

    Full Text Available Este artículo analiza un conjunto de consorcios tecnológicos apoyados con recursos públicos en Argentina, Chile, Colombia y Uruguay. Estos programas buscan facilitar la interacción entre empresas e instituciones dedicadas a la producción de ciencia y tecnología. Los resultados, basados en datos recabados para un subconjunto de los grupos apoyados, ponen en relieve las dificultades y los largos tiempos que se re-quieren para lograr resultados concretos, en particular, en innovación tecnológica. El trabajo cuantitativo muestra una evaluación relativamente baja de las empresas res-pecto al efecto de estos instrumentos en la generación de innovaciones de productos y procesos y la obtención de patentes, aunque existen aspectos relativamente mejor evaluados, como el mejoramiento del acceso a conocimiento tecnológico, en ámbitos como el mercadeo y los recursos humanos. Esto puede deberse a que varios de los consorcios llevan poco tiempo en funcionamiento y necesitan un plazo más largo para ser evaluados.

  5. Early Cambrian oxygen minimum zone-like conditions at Chengjiang

    DEFF Research Database (Denmark)

    Hammarlund, Emma U.; Gaines, Robert R.; Prokopenko, Maria G.

    2017-01-01

    in early Cambrian marine settings and the relationship of those conditions to early metazoan ecosystems is still emerging. Here, we report multi-proxy geochemical data from two drill cores through the early Cambrian (Series 2) Yu’anshan Formation of Yunnan, China. Results reveal dynamic water...... oxygen-minimum zones. The oxygenated benthic environments in which the Chengjiang biota thrived were proximal to, but sharply separated from, the open ocean by a persistent anoxic water mass that occupied a portion of the outer shelf. Oxygen depletion in the lower water column developed dynamically...

  6. The international dimension of drug policy reform in Uruguay

    National Research Council Canada - National Science Library

    von Hoffmann, Jonas

    2016-01-01

    .... A growing body of research addresses drug policy reform in Uruguay. However, existing studies have almost completely elided its international dimension, treating the process as exclusively domestic phenomenon...

  7. Control programme for cystic echinococcosis in Uruguay

    Directory of Open Access Journals (Sweden)

    Pilar Irabedra

    2016-06-01

    Full Text Available Cystic echinococcosis is a highly endemic parasitic zoonosis that is present in the Southern Cone countries of America. For several decades, various prevention and control programmes have been implemented in different countries and regions, with varying results. In Uruguay, a new control programme was implemented in 2006 that employed new strategies for canine diagnosis and treatment, dog population control, diagnosis in humans, epidemiological surveillance, and health education, including community participation. The control programme in Uruguay addresses the control and surveillance of the disease from a holistic perspective based on Primary Health Care, which has strengthened the community’s participation in developing and coordinating activities in an interdisciplinary manner. Similarly, the control programme that is currently implemented is based on a risk-focused approach. The surveillance and control measures were focused on small villages and extremely poor urban areas. In this study, the strategies used and the results obtained from 2008-2013 are analysed and discussed.

  8. Area Handbook Series: Uruguay, A Country Study.

    Science.gov (United States)

    1990-12-01

    internacional : Resefia hist6rica," Geosur: Asociacidn Sudamericana de Estudios Geopol’ticos e Internacionales [Montevideo], 19, Nos. 111-12, July...cultura en el Rio de la Plata, 1. (XVII Cursos Internacionales de Verano.) Montevideo: Universidad de la Repiiblica, 1987. Visca, Carlos. Emilio Reusy...Universitaria de Buenos Aires, 1963. . Sociologia rural nacional. (2d ed.) Montevideo: Facultad de Derecho y Ciencias Sociales, 1958. . Uruguay en

  9. Provenance shift in Cambrian mid-Baltica: detrital zircon chronology of Ediacaran–Cambrian sandstones in Estonia

    Directory of Open Access Journals (Sweden)

    Yukio Isozaki

    2014-12-01

    Full Text Available In order to clarify the tectono-sedimentary history of Paleozoic Baltica, age spectra of detrital zircon grains from the Ediacaran (Kotlin Regional Stage and Lower Cambrian sandstones (lowermost Lontova and Lükati formations in western Estonia in central Baltica were analyzed by LA-ICPMS. The abundant occurrence of Archean to Mesoproterozoic (2800–1000 Ma zircon grains was confirmed in all samples. The new data provided the following information on the provenance of siliciclastic material as well as a major change in the sedimentary regime of the Paleo-Baltic basin during the Early Cambrian: (1 the Ediacaran–Lower Cambrian Paleo-Baltic basin received abundant terrigenous clastics from the core of Baltica underlain by the Archean–Mesoproterozoic crystalline crust, (2 the exposed surface area of the 1600 Ma Rapakivi granites apparently was more extensive during the Ediacaran–Early Cambrian than at present, (3 a major re-organization of the basin geometry occurred in the middle Early Cambrian (ca 530–515 Ma in central Baltica, inducing a change in the sediment supply system, (4 in contrast to the total absence of Neoproterozoic detrital zircon grains before the middle Early Cambrian, their sudden appearance at this time, together with consistent occurrence at least until the mid-Devonian, suggests a significant uplift event located in southeast Baltica and/or in a more easterly land domain (e.g., in Sarmatia, (5 possible sources for the Neoproterozoic zircon grains include the peripheral mobile belts with pan-African signatures around Baltica, e.g., the so-called Gondwanan fragments along the Tornquist margin to the southwest and the Timanian belt along the northeastern margin.

  10. Grupo de trabajo: Unherpetos

    Directory of Open Access Journals (Sweden)

    Grupo de Trabajo Herpetología

    2000-12-01

    Full Text Available

    El grupo de Herpetología (Unherpetos surgió como una iniciativa de algunos estudiantes de Biología de la Universidad Nacional de Colombia como respuesta a la carencia de esfuerzos conjuntos en el estudio de los reptiles y de los anfibios. Hasta el momento, la información, así como los proyectos de investigación, han estado dispersos. Es evidente la necesidad de fomentar el trabajo interdisciplinario y el apoyo que los investigadores y personas interesadas puedan brindarse entre sí. También es cierto que al ser reconocidos formalmente como grupo de trabajo se facilitara la elaboración de proyectos vinculados a la Universidad Nacional de Colombia así como a otras instituciones.

  11. Fossils, molecules and embryos: new perspectives on the Cambrian explosion

    Science.gov (United States)

    Valentine, J. W.; Jablonski, D.; Erwin, D. H.

    1999-01-01

    The Cambrian explosion is named for the geologically sudden appearance of numerous metazoan body plans (many of living phyla) between about 530 and 520 million years ago, only 1.7% of the duration of the fossil record of animals. Earlier indications of metazoans are found in the Neoproterozic; minute trails suggesting bilaterian activity date from about 600 million years ago. Larger and more elaborate fossil burrows appear near 543 million years ago, the beginning of the Cambrian Period. Evidence of metazoan activity in both trace and body fossils then increased during the 13 million years leading to the explosion. All living phyla may have originated by the end of the explosion. Molecular divergences among lineages leading to phyla record speciation events that have been earlier than the origins of the new body plans, which can arise many tens of millions of years after an initial branching. Various attempts to date those branchings by using molecular clocks have disagreed widely. While the timing of the evolution of the developmental systems of living metazoan body plans is still uncertain, the distribution of Hox and other developmental control genes among metazoans indicates that an extensive patterning system was in place prior to the Cambrian. However, it is likely that much genomic repatterning occurred during the Early Cambrian, involving both key control genes and regulators within their downstream cascades, as novel body plans evolved.

  12. Ediacaran and Cambrian stratigraphy in Estonia: an updated review

    Directory of Open Access Journals (Sweden)

    Tõnu Meidla

    2017-06-01

    Full Text Available Previous late Precambrian and Cambrian correlation charts of Estonia, summarizing the regional stratigraphic nomenclature of the 20th century, date back to 1997. The main aim of this review is updating these charts based on recent advances in the global Precambrian and Cambrian stratigraphy and new data from regions adjacent to Estonia. The term ‘Ediacaran’ is introduced for the latest Precambrian succession in Estonia to replace the formerly used ‘Vendian’. Correlation with the dated sections in adjacent areas suggests that only the latest 7–10 Ma of the Ediacaran is represented in the Estonian succession. The gap between the Ediacaran and Cambrian may be rather substantial. The global fourfold subdivision of the Cambrian System is introduced for Estonia. The lower boundary of Series 2 is drawn at the base of the Sõru Formation and the base of Series 3 slightly above the former lower boundary of the ‘Middle Cambrian’ in the Baltic region, marked by a gap in the Estonian succession. The base of the Furongian is located near the base of the Petseri Formation.

  13. An Ediacaran–Cambrian thermal imprint in Rajasthan, western India ...

    Indian Academy of Sciences (India)

    East Sahara. Congo. Kalahari. Kuunga. Orogen. 570-530 Ma. 570-500 Ma. East. Antarctica. Grenville-age orogens cratons. Neoproterozoic to. Cambrian orogens. Dharwar. Aravalli. Craton. Figure 6. Reconstruction of Gondwanaland in Cambrian–Ordovician time, showing cratonic regions, Grenville-age orogens,.

  14. An Ediacaran–Cambrian thermal imprint in Rajasthan, western India ...

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Earth System Science; Volume 122; Issue 6. An Ediacaran–Cambrian thermal imprint in Rajasthan, western India: Evidence from 40Ar-39Ar geochronology of the Sindreth volcanics. Archisman Sen Kanchan Pande Hetu C Sheth Kamal Kant Sharma Shraboni Sarkar A M Dayal Harish Mistry.

  15. Reconstructing the Avalon continent: Marginal to inner platform transition in the Cambrian of southern New Brunswick

    Science.gov (United States)

    Landing, E.

    1996-01-01

    A west to east, marginal to inner Avalonian platform transition, comparable to that in southeast Newfoundland and southern Britain, is present in the Cambrian of southern New Brunswick. The Saint John - Caton's Island - Hanford Brook area lay on the marginal platform, and its thick, uppermost Precambrian - lower Lower Cambrian is unconformably overlain by trilobite-bearing, upper Lower Cambrian. An inner platform remnant is preserved in the Cradle Brook outlier 60 km northeast of Saint John. In contrast to the marginal platform sequences, the Cradle Brook outlier has a very thin lower Lower Cambrian and has middle Lower Cambrian strata (Bonavista Group) not present on the marginal platform. The Cradle Brook Lower Cambrian closely resembles inner platform successions in eastern Massachusetts and Trinity and Placentia bays, southeast Newfoundland. A limestone with Camenella baltica Zone fossils on Cradle Brook seems to be the peritidal limestone cap of the subtrilobitic Lower Cambrian known in Avalonian North America (Fosters Point Formation) and England (Home Farm Member).

  16. New records and checklist of corticioid Basidiomycota from Uruguay

    Science.gov (United States)

    Sebastian Martinez; Karen K. Nakasone

    2010-01-01

    Twenty-eight corticioid basidiomycete species are reported from Uruguay for the first time. An annotated checklist with 110 species of corticioid Basidiomycota recorded from Uruguay is presented based on these new records and an intensive literature search. These species are distributed in 49 genera and 10 orders. The order Polyporales...

  17. The genus Phanerochaete (Corticiaceae, Basidiomycotina) sensu lato in Uruguay

    Science.gov (United States)

    Sebastian Martinez; Karen K. Nakasone

    2005-01-01

    Eight species of Phanerochaete are reported from Uruguay for the first time, including a new species, P. vesiculosa. Phanerochaete vesiculosa is characterized by thin-walled, clavate to cylindrical vesicles embedded in the subiculum. A key to the known species of Phanerochaete from Uruguay is provided.

  18. Uruguay : tous les projets | Page 3 | CRDI - Centre de recherches ...

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

    Région: Brazil, South America, Chile, Guatemala, North and Central America, Mexico, Uruguay ... Ce projet permettra de mener une analyse comparative des perceptions qu'ont les jeunes des pays du MERCOSUR (Argentine, Brésil, Paraguay et Uruguay) des droits, de la démocratie et de l'intégration régionale. Date de ...

  19. Asociacion de Bibliotecologos del Uruguay: apuntes de su historia

    Directory of Open Access Journals (Sweden)

    Ruth Santestevan

    2013-12-01

    Full Text Available Es una contribución que quiere ser un homenaje a todos los asociados y una arenga para los nuevoscolegas. En el análisis se menciona el comienzo de la enseñanza bibliotecológica en el país y el desarrollode la historia de la Asociación de Bibliotecólogos del Uruguay, que ha pasado por diversas etapas y hatenido las siguientes denominaciones: Asociación de Bibliotecarios Diplomados del Uruguay (1945,Asociación de Bibliotecarios del Uruguay (1962, Asociación de Bibliotecólogos y Afines del Uruguay(1978, Asociación de Bibliotecólogos del Uruguay (1990 a la fecha. Para finalizar se hace unaapreciación de la importancia de la entidad para la comunidad bibliotecológica y para la sociedad engeneral.

  20. Slates from Uruguay: a traditional natural stone

    Science.gov (United States)

    Morales Demarco, M.; Oyhantçabal, P.; Stein, K.-J.; Siegesmund, S.

    2012-04-01

    Slates were traditionally used as roofing material or for cladding worldwide and also in Uruguay. In regions where this resource was easily mined, the widespread application of slates in constructions resulted in the development of characteristic cultural landscapes. The application of slates in a wider sense is nowadays open for all uses of dimensional stone, compared to the restricted use as roofing or cladding material in the past. This has been achieved by the discovery and mining of new deposits within the last 25 years worldwide. Furthermore, the optimization of mining techniques that allows the excavation of larger blocks and the technical development for further handling of the blocks has contributed to an open spectrum of applications. The slate deposits from Uruguay are associated with the Neoproterozoic thrust and fold belt of the Dom Feliciano Belt. The slates are linked to calc-silicate strata in a greenschist facies volcano-sedimentary sequence and the deposits are located in the limb of a regional fold, where bedding and cleavage are parallel. The main lithotype is a layered and fine-grained calcareous phyllite with a quite diverse palette of colors: light green, grey, dark grey, reddish and black. The mined slate is split into slabs 0.5 - 2cm thick. The technical properties were investigated in a very systematic way with respect to the new European standards, showing values comparable to those registered for internationally known slates. In the past, the average production in Uruguay was around 4000 tons/year and a historical maximum of 13,000 tons was reached in 1993. The oscillations in the regional demand were the cause of several flourishing and decay cycles in the activity, but our investigation shows a considerable volume of indicated resources and therefore a very good potential. Exploration for colors and qualities and quantification of reserves is a prerequisite for the development of the sector.

  1. CAIRNES Y VICHADEROS EN LAS TIERRAS ALTAS DE URUGUAY / Cairnes and vichaderos in the highlands of Uruguay

    Directory of Open Access Journals (Sweden)

    Moira Sotelo

    2014-12-01

    Full Text Available El trabajo se centra en el estudio de una manifestación arqueológica compuesta por estructuras de piedras, denominadas en Uruguay como cairnes y vichaderos. Estas estructuras fueron construidas con piedras mediante la agregación e imbricación de bloques, dando lugar a la formación de montículos y círculos, ubicados en cerros y sierras del centro-norte y este del país. En general se ha aceptado que fueron hechas por las poblaciones indígenas (Guenoa-minuanes y quizás Charrúas que habitaban la región en tiempos de la llegada de los europeos, y que su uso estaría relacionado a entierros humanos, a eventos rituales y al control territorial. Estudios actuales se encaminan a profundizar en la cronología y funcionalidad de cairnes y vichaderos, así como sobre los grupos humanos que los construyeron. En esta oportunidad se presentan los resultados obtenidos con la revisión de fuentes documentales históricas, con referencias a prácticas funerarias y entierros con piedras. Por otro lado, se reseñan los resultados obtenidos con una prospección diseñada a partir de esa información, en el norte del territorio uruguayo. Los trabajos señalan un correlato espacial entre las fuentes documentales y el registro arqueológico, a la vez que confirman la magnitud de este fenómeno. Palabras clave: Tierras altas, estructuras de piedras, entierros humanos, documentos históricos.    Abstract This paper focuses on the study of an archaeological manifestation, composed by stone structures, known in Uruguay as cairnes and vichaderos. These structures were built by aggregating stone blocks, forming mounds and circles, hills and mountains located in north-central and east of Uruguay. It is generally accepted these stone structures were used as part of burial practices among indigenous groups (Guenoa-minuanes and perhaps Charrúas who inhabited the region before and after the European arrival. The social practices of indigenous peoples led to the

  2. Los costos del crimen en Uruguay

    OpenAIRE

    Aboal, Diego; Campanella, Jorge; Lanzilotta, Bibiana

    2013-01-01

    En este trabajo se estiman algunos de los costos asociados a la criminalidad y la violencia en Uruguay. El método utilizado es el de la contabilidad de costos. Entre los costos considerados se incluyen costos de seguridad y prevención del delito, de justicia, reclusión y rehabilitación de reclusos, costos de bienes robados, costos de salud y por pérdida de vidas a consecuencia de la violencia, y costos asociados a la pérdida de tiempo productivo en prisión de los reclusos. Para esto se ha uti...

  3. Domestic tourism in Uruguay: a matrix approach

    Directory of Open Access Journals (Sweden)

    Magdalena Domínguez Pérez

    2016-01-01

    Full Text Available In this paper domestic tourism in Uruguay is analyzed by introducing an Origin-Destination matrix approach, and an attraction coefficient is calculated. We show that Montevideo is an attractive destination to every department except itself (even if it emits more trips than it receives, and the Southeast region is the main destination. Another important outcome is the importance of intra-regional patterns, associated to trips to bordering departments. Findings provide destination managers with practical knowledge, useful for reducing seasonality and attracting more domestic tourists throughout the year, as well as to deliver a better service offer, that attracts both usual visitors and new ones from competitive destinations.

  4. Developing medical geology in Uruguay: a review.

    Science.gov (United States)

    Mañay, Nelly

    2010-05-01

    Several disciplines like Environmental Toxicology, Epidemiology, Public Health and Geology have been the basis of the development of Medical Geology in Uruguay during the last decade. The knowledge and performance in environmental and health issues have been improved by joining similar aims research teams and experts from different institutions to face environmental problems dealing with the population's exposure to metals and metalloids and their health impacts. Some of the Uruguayan Medical Geology examples are reviewed focusing on their multidisciplinary approach: Lead pollution and exposed children, selenium in critically ill patients, copper deficiency in cattle and arsenic risk assessment in ground water. Future actions are also presented.

  5. Compilation and network analyses of cambrian food webs.

    Directory of Open Access Journals (Sweden)

    Jennifer A Dunne

    2008-04-01

    Full Text Available A rich body of empirically grounded theory has developed about food webs--the networks of feeding relationships among species within habitats. However, detailed food-web data and analyses are lacking for ancient ecosystems, largely because of the low resolution of taxa coupled with uncertain and incomplete information about feeding interactions. These impediments appear insurmountable for most fossil assemblages; however, a few assemblages with excellent soft-body preservation across trophic levels are candidates for food-web data compilation and topological analysis. Here we present plausible, detailed food webs for the Chengjiang and Burgess Shale assemblages from the Cambrian Period. Analyses of degree distributions and other structural network properties, including sensitivity analyses of the effects of uncertainty associated with Cambrian diet designations, suggest that these early Paleozoic communities share remarkably similar topology with modern food webs. Observed regularities reflect a systematic dependence of structure on the numbers of taxa and links in a web. Most aspects of Cambrian food-web structure are well-characterized by a simple "niche model," which was developed for modern food webs and takes into account this scale dependence. However, a few aspects of topology differ between the ancient and recent webs: longer path lengths between species and more species in feeding loops in the earlier Chengjiang web, and higher variability in the number of links per species for both Cambrian webs. Our results are relatively insensitive to the exclusion of low-certainty or random links. The many similarities between Cambrian and recent food webs point toward surprisingly strong and enduring constraints on the organization of complex feeding interactions among metazoan species. The few differences could reflect a transition to more strongly integrated and constrained trophic organization within ecosystems following the rapid

  6. Tropical shoreline ice in the late Cambrian: Implications for earth's climate between the Cambrian Explosion and the Great Ordovician Biodiversification Event

    Science.gov (United States)

    Runkel, Anthony C.; MacKey, T.J.; Cowan, Clinton A.; Fox, David L.

    2010-01-01

    Middle to late Cambrian time (ca. 513 to 488 Ma) is characterized by an unstable plateau in biodiversity, when depauperate shelf faunas suffered repeated extinctions. This poorly understood interval separates the Cambrian Explosion from the Great Ordovician Biodiversification Event and is generally regarded as a time of sustained greenhouse conditions. We present evidence that suggests a drastically different climate during this enigmatic interval: Features indicative of meteoric ice are well preserved in late Cambrian equatorial beach deposits that correspond to one of the shelf extinction events. Thus, the middle to late Cambrian Earth was at least episodically cold and might best be considered a muted analogue to the environmental extremes that characterized the Proterozoic, even though cooling in the two periods may have occurred in response to different triggers. Such later Cambrian conditions may have significantly impacted evolution preceding the Ordovician radiation.

  7. Cyanobacteria and cyanotoxins in freshwaters of Uruguay

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    Sylvia Bonilla

    2015-12-01

    Full Text Available Cyanobacterial blooms are a worldwide environmental problem. This phenomenon is typically associated with eutrophication (nutrient enrichment and changes in hydrology. In this study we analysed the distribution of planktonic cyanobacteria in Uruguay and their toxins (microcystin, saxitoxin and cylindrospermopsin, working with an interagency team (OSE, DINAMA, IM, University of the Republic and IIBCE. An historical data base (n = 3061 for 64 ecosystems, years 1980-2014 was generated. Differences between lotic and lentic ecosystems were found in terms of chlorophyll a and nutrient concentrations, usually indicating eutrophication. Two geo-referenced maps for the country were generated with cyanobacteria biomass indicators and the most relevant toxin (microcystin, according to risk levels suggested by the World Health Organization for recreational waters. The areas of greatest risk of exposure were the reservoirs of large rivers (Uruguay and Río Negro and Río de la Plata beaches. In the second part of the study, up to 20 mg L-1of microcystin was quantified in bloom (scum samples, as well as the presence of genes that suggest more microcystin varieties, potentially with greater toxicity. This study provides basic information about the distribution of cyanobacteria in Uruguayan freshwaters that will be useful for national monitoring programs and scientific research.

  8. Upper Cambrian chitons (Mollusca, polyplacophora) from Missouri, USA

    Science.gov (United States)

    Pojeta, J.; Vendrasco, M.J.; Darrough, G.

    2010-01-01

    Numerous new specimens reveal a greater presence of chitons in Upper Cambrian rocks than previously suspected. Evidence is presented showing that the chiton esthete sensory system is present in all chiton species in this study at the very beginning of the known polyplacophoran fossil record. The stratigraphic occurrences and paleobiogeography of Late Cambrian chitons are documented. The 14 previously-named families of Cambrian and Ordovician chitons are reviewed and analyzed. Aulochitonidae n. fam. is defined, based on Aulochiton n. gen.; A. sannerae n. sp. is also defined. The long misunderstood family Preacanthochitonidae and its type genus Preacanthochiton Bergenhayn, 1960, are placed in synonymy with Mattheviidae and Chelodes Davidson & King, 1874, respectively; Eochelodes Marek, 1962, also is placed in synonymy with Chelodes, and Elongata Stinchcomb & Darrough, 1995, is placed in synonymy with Hemithecella Ulrich & Bridge, 1941. At the species level, H. elongata Stinchcomb & Darrough, 1995, and Elongata perplexa Stinchcomb & Darrough, 1995, are placed in synonymy with H. eminensis Stinchcomb & Darrough, 1995. The Ordovician species H. abrupta Stinchcomb & Darrough, 1995, is transferred to the genus Chelodes as C. abrupta (Stinchcomb & Darrough, 1995). The Ordovician species Preacanthochiton baueri Hoare & Pojeta, 2006, is transferred to the genus Helminthochiton as H. ? baueri (Hoare & Pojeta, 2006). The Ordovician species H. marginatus Hoare & Pojeta, 2006, is transferred to the genus Litochiton as L. marginatus (Hoare & Pojeta, 2006). Matthevia walcotti Runnegar, Pojeta, Taylor, & Collins, 1979, is treated as a synonym of Hemithecella expansa Ulrich & Bridge, 1941. In addition, other multivalved Cambrian mollusks are discussed; within this group, Dycheiidae n. fam. is defined, as well as Paradycheia dorisae n. gen. and n. sp. Cladistic analysis indicates a close relationship among the genera here assigned to the Mattheviidae, and between Echinochiton Pojeta

  9. Early Cambrian pentamerous cubozoan embryos from South China.

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    Jian Han

    Full Text Available BACKGROUND: Extant cubozoans are voracious predators characterized by their square shape, four evenly spaced outstretched tentacles and well-developed eyes. A few cubozoan fossils are known from the Middle Cambrian Marjum Formation of Utah and the well-known Carboniferous Mazon Creek Formation of Illinois. Undisputed cubozoan fossils were previously unknown from the early Cambrian; by that time probably all representatives of the living marine phyla, especially those of basal animals, should have evolved. METHODS: Microscopic fossils were recovered from a phosphatic limestone in the Lower Cambrian Kuanchuanpu Formation of South China using traditional acetic-acid maceration. Seven of the pre-hatched pentamerous cubozoan embryos, each of which bears five pairs of subumbrellar tentacle buds, were analyzed in detail through computed microtomography (Micro-CT and scanning electron microscopy (SEM without coating. RESULTS: The figured microscopic fossils are unequivocal pre-hatching embryos based on their spherical fertilization envelope and the enclosed soft-tissue that has preserved key anatomical features arranged in perfect pentaradial symmetry, allowing detailed comparison with modern cnidarians, especially medusozoans. A combination of features, such as the claustrum, gonad-lamella, suspensorium and velarium suspended by the frenula, occur exclusively in the gastrovascular system of extant cubozoans, indicating a cubozoan affinity for these fossils. Additionally, the interior anatomy of these embryonic cubozoan fossils unprecedentedly exhibits the development of many new septum-derived lamellae and well-partitioned gastric pockets unknown in living cubozoans, implying that ancestral cubozoans had already evolved highly specialized structures displaying unexpected complexity at the dawn of the Cambrian. The well-developed endodermic lamellae and gastric pockets developed in the late embryonic stages of these cubozoan fossils are comparable with

  10. Tiny sea anemone from the Lower Cambrian of China.

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    Jian Han

    Full Text Available BACKGROUND: Abundant fossils from the Ediacaran and Cambrian showing cnidarian grade grossly suggest that cnidarian diversification occurred earlier than that of other eumetazoans. However, fossils of possible soft-bodied polyps are scanty and modern corals are dated back only to the Middle Triassic, although molecular phylogenetic results support the idea that anthozoans represent the first major branch of the Cnidaria. Because of difficulties in taxonomic assignments owing to imperfect preservation of fossil cnidarian candidates, little is known about forms ancestral to those of living groups. METHODS AND FINDINGS: We have analyzed the soft-bodied polypoid microfossils Eolympia pediculata gen. et sp. nov. from the lowest Cambrian Kuanchuanpu Formation in southern China by scanning electron microscopy and computer-aided microtomography after isolating fossils from sedimentary rocks by acetic acid maceration. The fossils, about a half mm in body size, are preserved with 18 mesenteries including directives bilaterally arranged, 18 tentacles and a stalk-like pedicle. The pedicle suggests a sexual life cycle, while asexual reproduction by transverse fission also is inferred by circumferential grooves on the body column. CONCLUSIONS: The features found in the present fossils fall within the morphological spectrum of modern Hexacorallia excluding Ceriantharia, and thus Eolympia pediculata could be a stem member for this group. The fossils also demonstrate that basic features characterizing modern hexacorallians such as bilateral symmetry and the reproductive system have deep roots in the Early Cambrian.

  11. Minerals in the gut: scoping a Cambrian digestive system

    Science.gov (United States)

    Strang, K. M.; Armstrong, H. A.; Harper, D. A. T.

    2016-11-01

    The Sirius Passet Lagerstätte of North Greenland contains the first exceptionally preserved mat-ground community of the Cambrian, dominated, in terms of abundance, by trilobites but particularly characterized by iconic arthropods and lobopods, some also occurring in the Burgess shale. High-resolution photography, scanning electron imaging and elemental mapping have been carried out on a variety of specimens of the non-mineralized arthropod Campanamuta mantonae (Budd 2011 J. Syst. Palaeontol. 9, 217-260 (doi:10.1080/14772019.2010.492644)) which has three-dimensional gut and muscle preservation. Results show that the guts contain a high concentration of calcium phosphate (approximating to the mineral francolite), whereas the adjacent muscles are silicified. This indicates a unique, tissue-specific taphonomy for this Cambrian taxon. We hypothesize that the precipitation of calcium phosphate in the guts occurs rapidly after death by `crystal seed' processes in suboxic, slightly acidic conditions; critically, the gut wall remained intact during precipitation. We postulate that the calcium phosphate was derived from ingested cellular material. Silicification of the muscles followed as the localized water chemistry became saturated in silica, high in Fe2+, and low in oxygen and sulfate. We document here the unique occurrence of two distinct but mechanistically similar taphonomic pathways within a diverse suite of possibilities in an Early Cambrian Lagerstätte.

  12. Evolution of animal behaviour in the Ediacaran-Cambrian transition

    Science.gov (United States)

    Kenchington, Charlotte; McIlroy, Duncan

    2017-04-01

    The transition from the Ediacaran to the Cambrian ( 541 million years ago) marks a fundamental leap in the evolution of life: the evolution of complex animal behaviour, the decline in the microbial mats that characterised the Neoproterozoic and a drastic change in the chemistry of the sediment-water interface. Disturbance is well known as a controlling factor in structuring modern communities. By combining detailed petrographic analysis with data on sedimentology, burrow densities, and ichnodiversity of the basal Cambrian stratotype we are able to place the evolution of animal behaviour recorded in these successions into an improved palaeoenvironmental context. Additionally, Ediacaran-Cambrian ichnofabrics are found to be comparable to experimentally produced ones created by simple ecdysozoans and lophotrochozoans collected from the dysoxic sediments of the Bonne Bay fjords of western Newfoundland. Using multivariate statistical analyses, it is possible to identify and quantify any correlation between palaeoenviromental, ichnological and matground characteristics. This will create improved understanding of the interplay between biological and abiological processes during the evolution of complex animal behaviour in a palaeoenvironmental context.

  13. Tabaquismo durante el embarazo en Argentina y Uruguay Smoking during pregnancy in Argentina and Uruguay

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    Fernando Althabe

    2008-02-01

    Full Text Available Argentina y Uruguay están entre los países con mayor proporción de mujeres jóvenes fumadoras. Se desconoce cuál es la proporción exacta de ellas que fuman durante el embarazo así como las características de las que dejan de fumar y las que continúan fumando durante el embarazo. Realizamos una encuesta administrada por un/a entrevistador/a a 1512 mujeres embarazadas de 18 años o mayores (796 en Argentina; 716 en Uruguay, que concurrían a control prenatal en hospitales públicos de grandes conglomerados urbanos. 44% de las mujeres en Argentina y 53% en Uruguay habían sido o eran fumadoras. Durante el embarazo, 11% de las mujeres en Argentina y 18% en Uruguay continuaron fumando. En ambos países, la proporción de mujeres que vive con fumadores, permite fumar en el hogar y regularmente o siempre se encuentra en lugares cerrados con personas que estén fumando fue 49%, 46% y 20% entre las mujeres que nunca fumaron, 67%, 60% y 32% entre las que dejaron, y 78%, 75% y 52% entre las que continuaron fumando respectivamente. El estudio confirma un importante problema de salud pública y documenta que la exposición ambiental persiste en subgrupos de mujeres, aun en aquéllas que dejaron de fumar. Es importante que el sector de salud pública provea acceso a programas efectivos para dejar de fumar durante el embarazo. Cualquier nueva intervención a desarrollar que intente tener un éxito al menos moderado y sostenible, debiera incluir componentes que actúen sobre el entorno fumador de la mujer embarazada que fuma.Argentina and Uruguay are among the countries in which a large proportion of young women smoke. The rate of smokers during pregnancy in both countries is not well known, and data on the characteristics of women who quit smoking during pregnancy compared to those who continue smoking are not available. We conducted a survey including 1512 pregnant women >18 years old (796 in Argentina; 716 in Uruguay, during antenatal visits in

  14. Antarctica, supercontinents and the palaeogeography of the Cambrian 'explosion'

    Science.gov (United States)

    Dalziel, Ian

    2014-05-01

    Laurentia is bordered by latest Precambrian-Cambrian rifted margins and must therefore have been located within a Precambrian supercontinent. Geochronologic and geochemical evidence indicates that it was attached to parts of the East Antarctic craton within the Rodinian supercontinent in the late Mesoproterozoic. The Mawson craton of Antarctica rifted from the proto-Pacific margin of Laurentia during the Neooproterozoic, colliding with the present 'southern cone' of Laurentia at ~600 Ma along the Shackleton Range suture zone as Gondwana and Laurentia amalgamated to form the ephemeral Pannotia supercontinental assembly at the end of the Precambrian. The abrupt appearance of almost all animal phyla in the fossil record is often colloquially referred to as the Cambrian 'explosion' of life on Earth. It is also named 'Darwin's dilemma,' as he appreciated that this seemingly mysterious event posed a major problem for his theory of evolution by natural selection. It coincided with a time of major marine transgression over all the continents. Although the metazoan 'explosion' is now seen as more protracted than formerly recognized, it is still regarded one of the most critical events in the history of the biosphere. One of the most striking aspects of the earliest Cambrian fossils is geographic differentiation. In particular, the first benthic trilobite faunas on Laurentia, ancestral North America, and the newly amalgamated southern supercontinent of Gondwana are distinctly different. This has led to the suggestion of an unknown vicariant event intervening between an ancestral trilobite clade and higher members that are represented in the fossil record, possibly one related to the breakup of a supercontinent. Igneous rocks along the Panthalassic margin of Gondwana, including South America, southernmost Africa and the Ellsworth-Whitmore crustal block of Antarctica, and along the proto-Appalachian margin of Laurentia indicate that final separation of Laurentia from

  15. Turismo enológico en Uruguay: ¿qué quiere el visitante local?

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    Gianfranca María Camussi Calvi

    2016-01-01

    Full Text Available El turismo enológico en Uruguay comienza a desarrollarse, con una demanda compuesta mayoritariamente por turistas extranjeros y visitantes locales en segundo plano. Con el objetivo de aportar conocimiento sobre el visitante doméstico y sus expectativas y aspiraciones, para el logro de un plan de marketing ajustado, se realizó una encuesta, a residentes de Montevideo de alto nivel socioeconómico. El 86% desea realizar enoturismo; los intereses específicos permiten separar grupos por afinidad. Respecto a las actividades propias del enoturismo, se diferencia un grupo que desea focalizarse en degustar y comprar vino, y otro que prefiere conocer el proceso productivo completo. Todos desean actividades complementarias, y se dicotomizan en - un grupo que prefiere gastronomía, cultura y arte, - mientras el otro, deportes o actividades al aire libre. Se ha identificado la amplitud de servicios para un turismo del vino exitoso que busque la satisfacción del cliente y la fidelización de los visitantes locales.

  16. All projects related to uruguay | Page 3 | IDRC - International ...

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

    Topic: Biodiversity, ENVIRONMENTAL HEALTH, ECOSYSTEMS, URUGUAY, Climate change, ENVIRONMENTAL POLICY, BRAZIL, COASTAL WATERS ... How can science, technology, and innovation contribute to poverty reduction and inclusive development, especially in Brazil, Russia, India, China, and South Africa, ...

  17. OSMUNDACEAE EN ARGENTINA, PARAGUAY Y URUGUAY

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    Marcelo D. Arana

    2015-01-01

    Full Text Available En este estudio se actualiza la taxonomía y distribución de las Osmundaceae, familia de helechos que habitan bosques y humedales subtropicales de la Argentina, Paraguay y Uruguay. Actualmente la familia comprende cuatro géneros, dos de ellos, con una especie cada uno, estan presentes en la región estudiada. Se acepta Osmunda spectabilis como una especie válida, diferente de O. regalis , la que no se encuentra presente en el área de estudio. Se reconoce a nivel de género a Osmundastrum con una única especie O. cinnamomeum var. cinnamomeum . Se incluyen una clave para los géneros, descripciones, la sinonimia relevante para América del Sur, distribuciones e ilustraciones de las especies. Se lectotipifica a Osmunda imbricata, Osmunda palustris y Osmunda spectabilis var. brasiliensis .

  18. Traditional application of slates in Uruguay

    Science.gov (United States)

    Morales Demarco, Manuela; Cardenes Van den Eynde, Víctor

    2017-04-01

    Commercial slates in Uruguay are represented by dolomitic and pelitic slates, which are known in the local market with the generic name of "piedra laja". The dolomitic slates, or more precisely the "slaty dolomitic semipelites" and "slaty dolomitic metacarbonate rocks" (following the nomenclature of the British Geological Survey for metamorphic rocks, Robertson 1999), dominates the production since 1960. The mining started in a quarry called "Libro Gigante", which means "giant book" in Spanish, as the slaty cleavage of these rocks is almost vertical, which resembles a book when looked from far away. These slates integrate the Lavalleja Group, a unit that comprises the schist belt of the Neoproterozoic Dom Feliciano Belt that crops out in south-eastern Uruguay. According to Morales Demarco et al (2013), there are two active slate mining districts in this region: the northern, called "Arroyo Minas Viejas Mining District", from where light grey, light and dark green and green-red slate varieties are mined, and the southern called "Arroyo Mataojo Mining District" and where only dark grey slates are extracted. Few kilometres eastern from these districts, and still in Lavalleja Group, a quarry of slaty dolomitic pelite is found with sporadic production. Far to the east, the slaty muscovitic pelites of Rocha Group are mined from one quarry in "Puntas del Chafalote". The traditional applications of these slates in the country are as façade cladding and floor slabs, both indoor and outdoor. The potential use of the dolomitic slates as roofing slates has been investigated and discarded by Morales Demarco et al (2013), as the slabs resulting from splitting are too thick (0.5 to 2 cm) and thus too heavy for this application. The parameter that controls the fissility of slates is the mass value (Bentz and Martini, 1968; DIN EN 12326-2, 2000) and is very important to determine their potential applications. It takes into account the number of mica layers per mm and the average

  19. Community-Associated MRSA in Uruguay

    Centers for Disease Control (CDC) Podcasts

    2008-08-05

    Methicillin-resistant Staphylococcus aureus is an antibiotic-resistant bacterium that is typically associated with infections in healthcare settings. In the past couple of decades, MRSA has emerged in the community, most often causing skin infections in healthy people who haven't recently been hospitalized. After an increase in community cases in Uruguay in 2004, health officials investigated to learn more about what was happening and found some interesting trends. In this podcast, CDC's Dr. Stephen Benoit discusses what they learned, the results of which are published in the August 2008 issue of CDC's journal, Emerging Infectious Diseases.  Created: 8/5/2008 by Emerging Infectious Diseases.   Date Released: 8/7/2008.

  20. El Poder Simbólico de las Gremiales Ganaderos en el Uruguay Contemporáneo The simbolic power of cattle raisers' associations in contemporary Uruguay

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    Alberto Riella

    2004-06-01

    Full Text Available En este artículo se buscará estudiar el amplio poder de influencia que los grandes estancieros y sus gremiales logran mantener desde hace más de un siglo en el Uruguay. Mediante el análisis de la dimensión simbólica del mundo social agrario estudiaremos las prácticas discursivas de las Gremiales Ganaderas - Asociación Rural del Uruguay y Federación Rural - como parte central de su estrategia simbólica para mantener su hegemonía en el campo social agrario. En este sentido, creemos que la construcción social del territorio en nuestro país se asienta en la forma de percepción impuesta por el poder simbólico de este grupo que ha hecho de sus formas particulares de apropiación y uso de la tierra la única forma posible y legítima de utilización de los recursos naturales. Para el análisis de las prácticas discursivas partimos del supuesto de que las organizaciones sociales, gremiales y corporativas están siempre inmersas en luchas simbólicas, ya que en ellas está en juego la realización objetiva de sus intereses a largo plazo. Utilizando los términos de Merton, podríamos afirmar que, más allá de la función manifiesta de una organización - gremial, comercial, profesional -, siempre hay una función latente que procura imponer a sus adversarios y a la opinión pública la "visión del mundo" propia del grupo que representa. En consecuencia, en las prácticas discursivas de estos agentes podremos encontrar claramente expresado su poder, sus alianzas, sus conflictos, lo que nos permite acceder a la comprensión de su estrategia simbólica de reproducción social.This article will try to study the broad influence and power maintained by large landowners and their associations since over a century ago in Uruguay. Based on the analysis of the symbolic dimensions of the agrarian world, we will study discursive practices of Cattle Owners Associations - Asociación Rural del Uruguay and Federación Rural - as a core part of their

  1. Disparity, decimation and the Cambrian "explosion": comparison of early Cambrian and Present faunal communities with emphasis on velvet worms (Onychophora

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    Julián Monge-Nájera

    2002-06-01

    Full Text Available The controversy about a Cambrian "explosion" of morphological disparity (followed by decimation, cladogenesis and fossilization is of central importance for the history of life. This paper revisits the controversy (with emphasis in onychophorans, which include emblematic organisms such as Hallucigenia, presents new data about the Chengjiang (Cambrian of China faunal community and compares it and the Burgess Shale (Cambrian of Canada with an ecologically similar but modern tropical marine site where onychophorans are absent, and with a modern neotropical terrestrial onychophoran community. Biovolume was estimated from material collected in Costa Rica and morphometric measurements were made on enlarged images of fossils. Cambrian tropical mudflats were characterized by the adaptive radiation of two contrasting groups: the vagile arthropods and the sessile poriferans. Arthropods were later replaced as the dominant benthic taxon by polychaetes. Vagility and the exoskeleton may explain the success of arthropods from the Cambrian to the modern marine and terrestrial communities, both in population and biovolume. Food ecological displacement was apparent in the B. Shale, but not in Chengjiang or the terrestrial community. When only hard parts were preserved, marine and terrestrial fossil deposits of tropical origin are even less representative than deposits produced by temperate taxa, Chengjiang being an exception. Nutrient limitations might explain why deposit feeding is less important in terrestrial onychophoran communities, where carnivory, scavenging and omnivory (associated with high motility and life over the substrate became more important. Fossil morphometry supports the interpretation of "lobopod animals" as onychophorans, whose abundance in Chengjiang was equal to their abundance in modern communities. The extinction of marine onychophorans may reflect domination of the infaunal habitat by polychaetes. We conclude that (1 a mature ecological

  2. Disparity, decimation and the Cambrian "explosion": comparison of early Cambrian and Present faunal communities with emphasis on velvet worms (Onychophora

    Directory of Open Access Journals (Sweden)

    Julián Monge-Nájera

    2000-06-01

    Full Text Available The controversy about a Cambrian "explosion" of morphological disparity (followed by decimation, cladogenesis and fossilization is of central importance for the history of life. This paper revisits the controversy (with emphasis in onychophorans, which include emblematic organisms such as Hallucigenia, presents new data about the Chengjiang (Cambrian of China faunal community and compares it and the Burgess Shale (Cambrian of Canada with an ecologically similar but modern tropical marine site where onychophorans are absent, and with a modern neotropical terrestrial onychophoran community. Biovolume was estimated from material collected in Costa Rica and morphometric measurements were made on enlarged images of fossils. Cambrian tropical mudflats were characterized by the adaptive radiation of two contrasting groups: the vagile arthropods and the sessile poriferans. Arthropods were later replaced as the dominant benthic taxon by polychaetes. Vagility and the exoskeleton may explain the success of arthropods from the Cambrian to the modern marine and terrestrial communities, both in population and biovolume. Food ecological displacement was apparent in the B. Shale, but not in Chengjiang or the terrestrial community. When only hard parts were preserved, marine and terrestrial fossil deposits of tropical origin are even less representative than deposits produced by temperate taxa, Chengjiang being an exception. Nutrient limitations might explain why deposit feeding is less important in terrestrial onychophoran communities, where carnivory, scavenging and omnivory (associated with high motility and life over the substrate became more important. Fossil morphometry supports the interpretation of "lobopod animals" as onychophorans, whose abundance in Chengjiang was equal to their abundance in modern communities. The extinction of marine onychophorans may reflect domination of the infaunal habitat by polychaetes. We conclude that (1 a mature ecological

  3. Perennial grasses traits as functional markers of grazing intensity in basaltic grasslands of Uruguay Rasgos de gramíneas perennes como marcadores funcionales de la intensidad de pastoreo en pastizales de basalto en Uruguay

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    Martin Jaurena

    2012-12-01

    Full Text Available Natural grasslands in the basaltic region of Uruguay are threatened by an increase in stocking rates and changes in land use. To assess the effect of grazing intensification, plant functional types are proposed as simple tools to aid the monitoring and management of vegetation. In the present study we evaluated the effect of stocking rate increase at community level taking into account plant traits of 23 dominant perennial grass species. In order to identify plant functional types, we determined the grazing response in an experiment with two wethers stocking rates (0.78 and 1.56 livestock units ha-1 quantifying species cover and traits values. Leaf dry matter content (LDMC and specific leaf area (SLA were the traits that best described the perennial grasses response to the stocking rate increase and therefore are suggested to be used as functional markers. Three functional types were identified. Low stocking rates were related to functional type A (tall, warm season species with low SLA and high LDMC and functional type B (tall, cool-season species, with intermediate levels of leaf traits. On the other hand, high stocking rate encouraged functional type C (prostrate, warm season species, with high SLA and low LDMC. The classification of a highly diverse community into three functional types and the selection of traits as functional markers candidates is an innovative approach to develop simple and general methods to diagnosis the state of basaltic grasslands in Uruguay and to advise on its management.Las praderas naturales de la region bas áltica de Uruguay están amenazadas por el incremento de la carga animal y cambios en el uso del suelo. Para evaluar el efecto del pastoreo se han propuesto los grupos funcionales como una herramienta simple para el monitoreo y manejo de la vegetación. El presente estudio evaluó el efecto del incremento de la carga animal considerando rasgos de 23 especies de gramineas perennes dominantes. Para identificar

  4. Moulting in the lobopodian Onychodictyon from the lower Cambrian of Greenland

    DEFF Research Database (Denmark)

    Topper, Timothy Paul; Skovsted, Christian B.; Peel, John S.

    2013-01-01

    A number of lobopodian taxa from the Cambrian display pairs of sclerotized plates symmetrically positioned along the dorsum of the animal, predominantly above the walking appendages. Most genera were described from complete body fossils exquisitely preserved in the famous Cambrian Lagerstatten, b...

  5. The Bouznika Cambrian barite deposit (Morocco), an early mineralization on the Iapetus margin

    Science.gov (United States)

    Jébrak, Michel; el Wartiti, Mohamed; Marcoux, Eric; Zaharoui, Mohamed

    2011-05-01

    Most of Morocco's barite production comes from deposits of epigenetic origin emplaced during Mesozoic time and hosted by Cambrian formations. Located in the Hercynian Meseta, the Bouznika deposit is associated with the Cambrian Oued Rhebar bimodal volcanic complex. Barite occurs as both stockworks and stratiform lenses within felsic tuffs and epiclastites, and is associated with a potassic alteration characterized by the presence of sericite. Lead and sulphur isotope analyses demonstrate that emplacement occurred during Cambrian time when barite-enriched hydrothermal fluids, likely of volcanic origin, mixed with sulphur from seawater. The Cambrian formations hosting the Bouznika, Jbel Irhoud and Seksaoua barite deposits are located near the faulted limit of the Meseta's lower Palaeozoic Iapetus rift on the northwestern edge of the Gondwana continent, suggesting that they formed during the Mesozoic reworking of early Cambrian concentrations.

  6. Soomlased ajendasid Uruguay ja Argentina vahelise tselluloositüli / Heiki Suurkask

    Index Scriptorium Estoniae

    Suurkask, Heiki, 1972-

    2006-01-01

    Argentiinlased protestivad Uruguay jõe Uruguay-poolsel kaldal ehitavate tselluloositehaste vastu, ehitustööd mõistis hukka ka president Nestor Kirchner. Tehased rajab Soome kontsern Metsä-Botnia. Lisa: Argentinal endal keskkonnale ohtlikud tehased

  7. Spawning of migratory fish species between two reservoirs of the upper Uruguay River, Brazil

    National Research Council Canada - National Science Library

    Reynalte-Tataje, David A; Nuñer, Alex P. O; Nunes, Michele C; Garcia, Valquíria; Lopes, Carolina A; Zaniboni-Filho, Evoy

    2012-01-01

    ... (upper Uruguay River, Brazil) and its relationship to environmental variables. Sampling was conducted in the lotic region of the river in two sites between the dams' reservoirs: Uruguay (main river) and Ligeiro (tributary...

  8. Grupo Focal em Pesquisas Sociais

    OpenAIRE

    Maria Lúcia Silva Servo; Pricila Oliveira Araújo

    2012-01-01

    Este artigo tem como objetivo discutir a técnica de grupo focal em pesquisas sociais. Apresenta-se as concepções sobre grupo focal. Traz-se os postulados de Pichon-Rivière sobre grupo operativo, os instrumentos de planificação, os vetores do campo grupal para nortear a dinâmica e a observação do campo grupal, bem como a organização, a operacionalização e a análise dos dados das sessões de grupo focal. Através desta técnica de coleta de dados em pesquisas sociais, é possível a construção do EC...

  9. Birth defects monitoring in underdeveloped countries: an example from Uruguay.

    Science.gov (United States)

    Castilla, E E; Lopez-Camelo, J S; Dutra, G P; Paz, J E

    1991-01-01

    Medical authorities in developing countries are primarily interested in nutritional and infectious diseases. Therefore, activities directed to the prevention and control of low priority illnesses, such as birth defects, need to be particularly effective, simple, and economical. Monitoring of congenital anomalies is one of the preventive activities which can be efficiently performed at very low cost. Guidelines for this are given, and their application exemplified by the case of Uruguay. Uruguay has recently attained an infant mortality rate of 20/1,000, with the congenital anomalies ranking as its second cause. The government of Uruguay, through the Pan American Health Organisation/World Health Organisation (PARO/WHO) called the Estudio Colaborativo Latino Americano de Malformaciones Congenitas (ECLAMC) for advice in order to plan a program for the prevention of birth defects. The recommendations given were based on conclusions drawn from the analysis of data the ECLAMC program has been accumulating, from Uruguay and other Latin-American countries, since 1967. The case of Uruguay clearly indicates that sensible guidelines for birth defects prevention can be provided, after working with this "low priority and uninteresting" group of illnesses for more than twenty years.

  10. SOBRE LA PRESENCIA DE CONDALIA BUXIFOLIA (RHAMNACEAE Y MAYTENUS SPINOSA (CELASTRACEAE EN URUGUAY

    Directory of Open Access Journals (Sweden)

    MARCHESI EDUARDO

    2004-12-01

    Full Text Available A partir de la revisión de muestras de herbarios y nuevos relevamientos florísticosconcluimos que Maytenus spinosa (Celastraceae, especie citada para la flora deUruguay, fue reiteradamente confundida con Condalia buxifolia (Rhamnaceae,cuya presencia en Uruguay pasó inadvertida durante casi un siglo. Maytenus spinosadebe ser excluida de la flora del Uruguay.

  11. Sobre la presencia de condalia buxifolia (rhamnaceae) y maytenus spinosa (celastraceae) en uruguay

    OpenAIRE

    MARCHESI, EDUARDO; GRELA, IVÁN A.

    2012-01-01

    A partir de la revisión de muestras de herbarios y nuevos relevamientos florísticosconcluimos que Maytenus spinosa (Celastraceae), especie citada para la flora deUruguay, fue reiteradamente confundida con Condalia buxifolia (Rhamnaceae),cuya presencia en Uruguay pasó inadvertida durante casi un siglo. Maytenus spinosadebe ser excluida de la flora del Uruguay.

  12. Matrimonio igualitario en Uruguay: disputas de sentido sobre Derechos Humanos

    OpenAIRE

    Ávila Mendina, Darío

    2017-01-01

    El trabajo busca desentramar, en el marco cultural/comunicacional de Uruguay, la disputa de sentido respecto a la familia, ciudadanía y filiación que se ponen en juego en el debate de la ley de matrimonio igualitario. La tesis intenta la elaboración reflexiva de un mapa del modo en que se relacionan los diferentes movimientos vinculados a la diversidad sexual y al género, pero también a otros colectivos vulnerados en los procesos históricos de Uruguay.

  13. The simbolic power of cattle raisers' associations in contemporary Uruguay

    OpenAIRE

    Riella, Alberto; Andrioli, Alexandra

    2004-01-01

    En este artículo se buscará estudiar el amplio poder de influencia que los grandes estancieros y sus gremiales logran mantener desde hace más de un siglo en el Uruguay. Mediante el análisis de la dimensión simbólica del mundo social agrario estudiaremos las prácticas discursivas de las Gremiales Ganaderas - Asociación Rural del Uruguay y Federación Rural - como parte central de su estrategia simbólica para mantener su hegemonía en el campo social agrario. En este sentido, creemos que la const...

  14. The onset of the 'Ordovician Plankton Revolution' in the late Cambrian

    DEFF Research Database (Denmark)

    Servais, Thomas; Perrier, Vincent; Danelian, Taniel

    2016-01-01

    The 'Great Ordovician Biodiversification Event' comprises the rapid diversification of marine organisms during the Ordovician Period. It is now clear that this adaptive radiation started for some organisms already in the Cambrian and continued for others beyond the end of the Ordovician, making...... groups (e.g., arthropods, molluscs) that were part of the Cambrian benthos and that later occupied pelagic niches. In addition, we focus also on data indicating evidence for a late Cambrian to Ordovician origin of planktotrophy in invertebrate larvae. It can be concluded that none of the diversifications...

  15. Plated Cambrian Bilaterians Reveal the Earliest Stages of Echinoderm Evolution

    Science.gov (United States)

    Zamora, Samuel; Rahman, Imran A.; Smith, Andrew B.

    2012-01-01

    Echinoderms are unique in being pentaradiate, having diverged from the ancestral bilaterian body plan more radically than any other animal phylum. This transformation arises during ontogeny, as echinoderm larvae are initially bilateral, then pass through an asymmetric phase, before giving rise to the pentaradiate adult. Many fossil echinoderms are radial and a few are asymmetric, but until now none have been described that show the original bilaterian stage in echinoderm evolution. Here we report new fossils from the early middle Cambrian of southern Europe that are the first echinoderms with a fully bilaterian body plan as adults. Morphologically they are intermediate between two of the most basal classes, the Ctenocystoidea and Cincta. This provides a root for all echinoderms and confirms that the earliest members were deposit feeders not suspension feeders. PMID:22701623

  16. El grupo y sus conflictos

    OpenAIRE

    Morales, J. Francisco; Yubero, Santiago

    1999-01-01

    La dinámica de las relaciones entre los grupos es la esencia de la vida social e, incluso, hay quienes piensan que no son las relaciones entre los grupos, sino los conflictos que se producen en ei marco de las relaciones grupaies los que nos dan las claves de la propia dinámica social. En este sentido, no es descabellado pensar que los conflictos grupaies aportan la energía necesaria para que tanto las organizaciones, como la propia sociedad muestren su actividad en...

  17. El conflicto entre grupos profesionales

    OpenAIRE

    Yubero, Santiago

    1999-01-01

    La dinámica de las relaciones entre los grupos es la esencia de la vida social e, incluso, hay quienes piensan que no son las relaciones entre los grupos, sino los conflictos que se producen en ei marco de las relaciones grupaies los que nos dan las claves de la propia dinámica social. En este sentido, no es descabellado pensar que los conflictos grupaies aportan la energía necesaria para que tanto las organizaciones, como la propia sociedad muestren su actividad en...

  18. TICs en la enseñanza de la química en Uruguay : ¿innovación didáctica?

    OpenAIRE

    Meroni, Gabriela

    2013-01-01

    Este trabajo forma parte de una investigación que se propone localizar e investigar focos de innovación en la enseñanza de la química en Uruguay, analizando su significado, las dimensiones involucradas, los contextos en que se desarrollan, buscando nexos entre esos contextos y las posibilidades, dificultades e impedimentos para llevar adelante procesos de innovación didáctica. En esta comunicación se analiza la dimensión "usos de las TICs" que aparecen en la enseñanza realizada por un grupo d...

  19. Antropología y Turismo en “Los Países del Plata” (Argentina y Uruguay

    Directory of Open Access Journals (Sweden)

    Margarita Barretto

    2015-01-01

    Full Text Available El siguiente artículo presenta la creciente producción antropológica en el campo temático del turismo de Argentina y Uruguay. Desde comienzos de la década de noventa hasta el presente, el interés etnográfico de los investigadores sobre los distintos aspectos del turismo se ha incrementado sustancialmente, lo cual evidencia que la elaboración de trabajos académicos es cada vez más recurrente, así como diversa. En las próximas páginas intentaremos recorrer algunas de las investigaciones con las que hemos tenido contacto bibliográfico y aquellas que han sido presentadas en congresos de antropología social, especialmente en distintas instancias de la Reunión de Antropología del Mercosur (RAM y del Congreso Argentino de Antropología Social (CAAS, en las que hemos tenido lugar como coordinadores de grupos de trabajo sobre antropología y turismo. Podríamos decir que el campo del turismo en la antropología social y cultural de Argentina y Uruguay se halla instalado en el ámbito académico local, apuntando a nuevos paradigmas.

  20. The "e-green" revolution in Uruguay's classrooms | IDRC ...

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

    2011-01-28

    Jan 28, 2011 ... Primary students attending public schools in Uruguay will soon be seeing green in their classrooms, thanks to a global pilot initiative to deliver millions of low-cost laptops to the world's poorest children within the next year. The distinctive green, textbook-size computers were developed by the non-profit ...

  1. All projects related to Uruguay | Page 4 | IDRC - International ...

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

    Region: Argentina, South America, Chile, Colombia, Uruguay, North and Central America. Program: Networked ... In the La Plata basin, production of industrial crops and biofuels is rapidly expanding - a phenomenon driven by international markets, energy prices and the desire to offset the use of fossil fuels. Start Date: ...

  2. All projects related to Uruguay | Page 2 | IDRC - International ...

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

    Region: Argentina, Bolivia, Chile, Ecuador, El Salvador, West Indies, North and Central America, South America, Mexico, Nicaragua, Uruguay. Program: Employment ... Project. Researchers are raising growing concerns over the impact of corporate social responsibility (CSR) programs in the alcohol industry. Topic: YOUTH ...

  3. Situation Reports--Bahamas, Brasil, Guatemala, Netherlands Antilles (Curacao), Uruguay.

    Science.gov (United States)

    International Planned Parenthood Federation, London (England).

    Data relating to population and family planning in four foreign countries are presented in these situation reports. Countries included are Bahamas, Guatemala, Netherlands Antilles (Curacao), and Uruguay. Information is provided under two topics, general background and family planning situation, where appropriate and if it is available. General…

  4. Uruguay : tous les projets | CRDI - Centre de recherches pour le ...

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

    Ce projet s'attaquera au défi du chômage chez les jeunes de l'Amérique latine. Sujet: MOTIVATION. Région: Argentina, Brazil, Chile, Colombia, Mexico, Peru, Uruguay ... Sujet: LATIN AMERICA, INNOVATIONS, LEARNING, Capacity building, POLICY MAKING, RESEARCH, EMPLOYMENT OPPORTUNITIES, YOUTH.

  5. All projects related to Uruguay | Page 2 | IDRC - International ...

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

    Topic: LATIN AMERICA, HEALTH SYSTEM, PRIMARY HEALTH CARE, HEALTH PROGRAMMES, MATERNAL AND CHILD HEALTH, Capacity building. Region: Americas, Chile, South America, Uruguay. Program: Maternal and Child Health. Total Funding: CA$ 161,500.00. Research on Innovation Systems and Social ...

  6. Uruguay : tous les projets | Page 4 | CRDI - Centre de recherches ...

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

    Date de début : 3 mars 2007. End Date: 3 mars 2008. Sujet: YOUTH, YOUTH ORGANIZATIONS, POLITICAL PARTICIPATION, REGIONAL INTEGRATION, PUBLIC OPINION POLLS. Région: Argentina, South America, Bolivia, Brazil, Paraguay, Uruguay, Venezuela, North and Central America. Financement total : CA$ ...

  7. Language Policies in Uruguay and Uruguayan Sign Language (LSU)

    Science.gov (United States)

    Behares, Luis Ernesto; Brovetto, Claudia; Crespi, Leonardo Peluso

    2012-01-01

    In the first part of this article the authors consider the policies that apply to Uruguayan Sign Language (Lengua de Senas Uruguaya; hereafter LSU) and the Uruguayan Deaf community within the general framework of language policies in Uruguay. By analyzing them succinctly and as a whole, the authors then explain twenty-first-century innovations.…

  8. Uruguay : tous les projets | Page 5 | CRDI - Centre de recherches ...

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

    Région: Argentina, South America, Brazil, Chile, Colombia, Mexico, North and Central America, Uruguay. Programme: Emploi et croissance. Financement total : CA$ 352,841.00. Participation sociale à la santé au sein du MERCOSUR. Projet. Avec l'aide du CRDI, l'Instituto de la Salud, Medio Ambiente, Economia y ...

  9. Husband and Wife Interaction and Family Regulation in Rural Uruguay.

    Science.gov (United States)

    De Winter, A. M.

    Decision-making and family planning were studied in the rural city of Durazno, Uruguay, by means of answers to questions by both husbands and wives. A sample size of 268 couples in which at least one partner was between 21 and 50 years of age was used. Data were collected by means of a pretested and precoded interview schedule. Major conclusions…

  10. Autochthonous Outbreak and Expansion of Canine Visceral Leishmaniasis, Uruguay

    Science.gov (United States)

    Satragno, Dinora; Faral-Tello, Paula; Canneva, Bruno; Verger, Lorenzo; Lozano, Alejandra; Vitale, Edgardo; Greif, Gonzalo; Soto, Carlos

    2017-01-01

    We report an outbreak of canine visceral leishmaniasis in Uruguay. Blood specimens from 11/45 dogs tested positive for Leishmania spp. Specimens of Lutzomyia longipalpis sand flies were captured; typing revealed Leishmania infantum. Our findings document an expansion of visceral leishmaniasis to southern South America and risk for vectorborne transmission to humans. PMID:28221113

  11. Building Human Resource Capacity in Uruguay's Extractive Industry ...

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

    Properly managing and gaining maximum benefit from the extractive sectors in developing countries relies on skilled human resources. This project will help Uruguay navigate many of the challenges it faces in its shift from agriculture to a greater focus on extractive industries. It will provide funds to build research and ...

  12. uruguay : tous les projets | Page 2 | CRDI - Centre de recherches ...

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

    Date de début : 27 juillet 2011. End Date: 27 septembre 2014. Sujet: Climate change, ADAPTATION TO CHANGE, RIVER BASINS, FLOODS, LAND USE, PLANNING, RISK MANAGEMENT. Région: Argentina, South America, Uruguay, North and Central America. Programme: Changements climatiques. Financement total ...

  13. Building Human Resource Capacity in Uruguay's Extractive Industry ...

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

    In small countries with relatively few (and mostly non-specialized) post-graduate educational options, training human resources needed for the extractive industries sector is especially challenging. This is also true for countries where the extractive industries are relatively new. This is Uruguay's reality, a small country with ...

  14. The sedimentological characteristics of microbialites of the Cambrian in the vicinity of Beijing, China

    Directory of Open Access Journals (Sweden)

    Yin-Ye Wu

    2017-04-01

    Full Text Available With oil and gas exploration transferring to deeper and more ancient marine strata, more researches have been conducted about the Meso–Neoproterozoic and Cambrian microbial carbonate rocks by petroleum geologists. The Cambrian deposits experienced the first transgression of the Paleozoic, with shallow marine facies depositing in most areas, which are favorable for different kinds of biological reproduction. The Lower Cambrian in Beijing area is lithologically dominated by purple red shales interbedded with limestones, the Middle Cambrian is mainly composed of thick oolitic limestones, and the Upper Cambrian consists of thin limestones and flat-pebble conglomerates. Two beds of microbial carbonate rocks were discovered in the Cambrian outcrops in the vicinity of Beijing. One is from the Zhangxia Formation of Middle Cambrian, and the other is from the Gushan Formation of Upper Cambrian. The microbialites are characterized by combination of multiple stromatolites forming different bioherms. The bioherms are mostly in oval shape and with different sizes, which are 3–4 m long, and 1–3 m high. The surrounding strata beneath the bioherms are oolitic limestones. A central core of flat-pebble conglomerates occurred within each bioherm. Wavy or columnar stromatolites grow on the basis of flat-pebble conglomerates, with dentate erosional surfaces. The bioherm carbonate rocks are interpreted as products from a deep ramp sedimentary environment where potential oil and gas reservoirs can be found. The analysis of sedimentological characteristics of bioherm carbonate rocks and its lithofacies palaeogeography has significant implication for petroleum exploration. Research on geological record of microbialites is beneficial to investigating the Earth evolution, biodiversity, palaeoenvironment and palaeoclimate change, as well as biological extinction event during geological transitions. It also gives warning to human beings of modern biological crisis.

  15. Modelos basados en grafos: una aplicación al estudio del gasto de cruceristas en Uruguay || Graph-Based Models: An Application to the Study of Cruise Passengers' Expenditure in Uruguay

    Directory of Open Access Journals (Sweden)

    Brida, Juan Gabriel

    2017-12-01

    Full Text Available Este trabajo introduce el uso de grafos en el análisis de los determinantes del gasto de los turistas y lo aplica al estudio del comportamiento de los pasajeros de cruceros que desembarcan en Uruguay en los puertos de Montevideo y Punta del Este. Este enfoque ofrece un abordaje alternativo a los usualmente empleados para analizar los determinantes del gasto turístico al introducir una representación gráfica que permite sintetizar y visualizar las relaciones entre el conjunto de variables que caracterizan a los turistas o grupos de turistas y los determinantes de su nivel de gasto. En particular, la metodología permite representar las relaciones de dependencia entre variables (entre nodos adyacentes e independencias condicionadas (entre nodos no adyacentes. Para su aplicación, se consideran datos individuales de las encuestas realizadas a cruceristas correspondientes a la temporada de cruceros comprendida entre noviembre de 2014 y abril de 2015, ambos incluidos, en Uruguay. Se estudia la existencia de dependencias de las variables relativas a registrar el gasto de los cruceristas con otras variables (sociodemográficas, de contexto, etc.. El estudio muestra que las variables que mejor explican el comportamiento de los visitantes son las vinculadas al puerto de desembarco y al gasto. Asimismo, los resultados muestran que las variables socioeconómicas no están vinculadas al gasto en forma directa. || This paper introduces the use of graphs in the analysis of the determinants of tourists' expenditure, providing an alternative approach to the methods usually employed. Graph-based analysis is applied to study the behavior of cruise passengers arriving at the ports of Montevideo and Punta del Este in Uruguay. The graphical representation allows to synthesize and visualize the relationships between the set of variables that characterize tourists or tourist groups and the determinants of their level of spending. The graph-based methodology is

  16. Molecular diversity of bovine viral diarrhea virus in uruguay.

    Science.gov (United States)

    Maya, L; Puentes, R; Reolón, E; Acuña, P; Riet, F; Rivero, R; Cristina, J; Colina, R

    2016-03-01

    Bovine viral diarrhea (BVD) affects bovine production and reproduction causing significant economic losses all over the world. Two viral species has been recognized: BVDV-1 and BVDV-2, both distributed worldwide. Recently, novel specie of BVDV named HoBi-like pestivirus was discovered. The presence of BVDV was confirmed in 1996 in Uruguay, however, does not exist until today a schedule of compulsory vaccination along the country. Serological studies with samples from all Uruguayan herds were performed during 2000 and 2001 demonstrating that all of them were seropositive to BVDV with a mean prevalence of 69%. In addition, there have been no new studies done since those previously described and it is important to mention that the genetic diversity of BVD has never been described in Uruguay. Nowadays, there is strongly suspect that BVDV is one of the most important causes of reproductive failures in our herds. The aim of this study was to describe for the first time in Uruguay the genetic diversity of BVDV with samples collected from different regions along the country. Serological status of 390 non-vaccinated animals against BVDV with reproductive problems from farms of Rivera, Tacuarembó and Florida departments of Uruguay were studied. All herds were seropositive to BVDV and high proportion of animals were positive (298/390), while 4.1% (16/390) of the animals were positive to Antigen Capture ELISA test and Real Time PCR. Phylogenetic analysis performed with concatenated sequences from the 5'UTR and Npro genomic regions revealed that BVDV-1 and BVDV-2 are infecting our herds, being BVDV-1 the most frequently found. The major subtype was BVDV-1a, followed by BVDV-1i and BVDV-2b. This is the first study that describes the genetic diversity of BVDV in Uruguay and it will contribute to the elaboration of sanitization programs.

  17. Early Cambrian origin of modern food webs: evidence from predator arrow worms.

    Science.gov (United States)

    Vannier, J; Steiner, M; Renvoisé, E; Hu, S-X; Casanova, J-P

    2007-03-07

    Although palaeontological evidence from exceptional biota demonstrates the existence of diverse marine communities in the Early Cambrian (approx. 540-520 Myr ago), little is known concerning the functioning of the marine ecosystem, especially its trophic structure and the full range of ecological niches colonized by the fauna. The presence of a diverse zooplankton in Early Cambrian oceans is still an open issue. Here we provide compelling evidence that chaetognaths, an important element of modern zooplankton, were present in the Early Cambrian Chengjiang biota with morphologies almost identical to Recent forms. New information obtained from the lowermost Cambrian of China added to previous studies provide convincing evidence that protoconodont-bearing animals also belonged to chaetognaths. Chaetognaths were probably widespread and diverse in the earliest Cambrian. The obvious raptorial function of their circumoral apparatuses (grasping spines) places them among the earliest active predator metazoans. Morphology, body ratios and distribution suggest that the ancestral chaetognaths were planktonic with possible ecological preferences for hyperbenthic niches close to the sea bottom. Our results point to the early introduction of prey-predator relationships into the pelagic realm, and to the increase of trophic complexity (three-level structure) during the Precambrian-Cambrian transition, thus laying the foundations of present-day marine food chains.

  18. Lower Cambrian polychaete from China sheds light on early annelid evolution

    Science.gov (United States)

    Liu, Jianni; Ou, Qiang; Han, Jian; Li, Jinshu; Wu, Yichen; Jiao, Guoxiang; He, Tongjiang

    2015-06-01

    We herein report a fossilized polychaete annelid, Guanshanchaeta felicia gen. et sp. nov., from the Lower Cambrian Guanshan Biota (Cambrian Series 2, stage 4). The new taxon has a generalized polychaete morphology, with biramous parapodia (most of which preserve the evidence of chaetae), an inferred prostomium bearing a pair of appendages, and a bifid pygidium. G. felicia is the first unequivocal annelid reported from the Lower Cambrian of China. It represents one of the oldest annelids among those from other early Paleozoic Lagerstätten including Sirius Passet from Greenland (Vinther et al., Nature 451: 185-188, 2008) and Emu Bay from Kangaroo island (Parry et al., Palaeontology 57: 1091-1103, 2014), and adds to our increasing roll of present-day animal phyla recognized in the early Cambrian Guanshan Biota. This finding expands the panorama of the Cambrian `explosion' exemplified by the Guanshan Biota, suggesting the presence of many more fossil annelids in the Chengjiang Lagerstätte and the Kaili Biota. In addition, this new taxon increases our knowledge of early polychaete morphology, which suggests that polychaete annelids considerably diversified in the Cambrian.

  19. The Ediacaran-Cambrian transition in the Cantabrian Zone 1 (North Spain): sub-Cambrian weathering, K-metasomatism and provenance of detrital series

    OpenAIRE

    Ugidos, J.M.; Barba, P.; Valladares, M.I.; Suarez, M.; Ellam, R.M.

    2016-01-01

    The Upper Ediacaran detrital succession in the Cantabrian Zone shows geochemical and mineralogical changes resulting from sub-Cambrian weathering during the Late Ediacaran worldwide sea-level fall. Relative to the unaltered rocks the altered ones show crosscutting rubefaction of varying thickness and remarkable increase in illite, K2O, Rb and Cs indicating K-metasomatism, and also depletion in MgO, CaO, Na2O, Be and Sr, but not in Zr, Nb, Y or Sc. The basal Cambrian siliciclastic rocks mostly...

  20. Trabalho em grupo com enlutados

    Directory of Open Access Journals (Sweden)

    Melissa Pascoal

    2012-12-01

    Full Text Available A cada dia temos mais famílias vivenciando o luto gerado por homicídios, acidentes e violência, e isso tem causado alguns problemas psicológicos para as pessoas que estão nesta situação. Este artigo é um relato da experiência profissional vivida no Hospital e Maternidade Mauá com um grupo de autoajuda para pacientes em processo de luto, e seu objetivo é compartilhar a experiência e difundir este trabalho. Em 15 encontros pré-estruturados de acordo com a demanda apresentada pelo próprio grupo, foi possível trabalhar diversos temas relacionados à perda que influenciaram as participantes e ao mesmo tempo proporcionaram, além de conforto, uma possibilidade de identificação e troca, e consequentemente o ressurgimento da autoconfiança. Por meio da articulação da teoria com a prática, é evidenciado que o atendimento em grupo para enlutados é uma alternativa viável que trouxe resultados positivos e inspiradores e sua divulgação é importante para ampliar horizontes e criar novas possibilidades.

  1. Splash-like marine biodiversity additions after the cambrian

    Directory of Open Access Journals (Sweden)

    Ruban Dmitry A.

    2015-01-01

    Full Text Available Some Phanerozoic biotic radiations in the marine realm led to marine biodiversity additions, i.e., increases in the global number of genera to unprecedented levels. Each of the two alternative biodiversity curves implies five post-Cambrian events of this kind, which coincided with parts of the biotic radiations. However, differences between these curves do not allow to find coherent marine biodiversity additions with the only exception of those occurred at the interval of the Great Ordovician Biodiversification. The attempted interpretations indicate that the marine biodiversity additions increased the number of marine genera by 10-30 % (from the previous unprecedented level to that new. All additions were relatively brief and occurred as splashes throughout the Phanerozoic. Peculiar intrinsic and extrinsic factors, as well as the speed of diversification should be considered when triggers of these events are looked for. Undoubtedly, splash-like marine biodiversity additions played an important role in the evolution of life in the sea, but a lot of research is required in order to understand their true nature.

  2. Middle Cambrian siliceous sponge-calcimicrobe buildups (Daegi Formation, Korea): Metazoan buildup constituents in the aftermath of the Early Cambrian extinction event

    Science.gov (United States)

    Hong, Jongsun; Cho, Seong-Hyeon; Choh, Suk-Joo; Woo, Jusun; Lee, Dong-Jin

    2012-05-01

    Numerous decimetre- to metre-scale carbonate buildups dominated by siliceous sponges and the calcimicrobe Epiphyton are reported from the Middle Cambrian (Series 3) Daegi Formation of Korea. These siliceous sponge-Epiphyton buildups consist predominantly of grey micritic boundstones with dark clots and/or white clumps. The boundstones contain sponge spicule networks interpreted as the calcified remains of siliceous sponges. The white clumps and dark clots in the boundstones represent variously preserved Epiphyton. Siliceous sponges form constructional pore space and are commonly encrusted by Epiphyton. The sponges were probably the primary frame-builders, providing substrates for the attachment and subsequent growth of Epiphyton. Epiphyton is considered to be a binder when covering the surface of siliceous sponges, and a subordinate frame-builder when filling depositional voids created by siliceous sponges or growing on top of other Epiphyton growth bundles. The siliceous sponge-Epiphyton buildups of the Daegi Formation show similarities to previously described Late Cambrian (Furongian) anthaspidellid-calcimicrobe buildups from Iran and the USA. Together with recently reported examples from the Zhangxia Formation of eastern China, the sponge-Epiphyton buildups from Korea represent some of the oldest metazoan-calcimicrobe buildups, after the extinction of most archaeocyaths at the end of the Early Cambrian (Series 2). This implies that the incorporation of metazoans in Middle Cambrian (Series 3) carbonate buildups occurred much earlier than previously known. The buildup-forming siliceous sponges described in this study demonstrate that their role in Early Phanerozoic carbonate buildups has been grossly underestimated.

  3. Radiation Protection Education in Diagnostic Radiology in Uruguay; Educacion en proteccionr adiologica en Radiodiagnostico en Uruguay

    Energy Technology Data Exchange (ETDEWEB)

    Cotelo, E.; Paolini, G.

    2003-07-01

    In Uruguay the lack of Radiation Protection (RP) laws makes education in medical use of ionizing radiations at University, a decisive factor of changes. The six years experience in teaching technicians, radiologists, interventional cardiologists and anesthetists in curricular lectures, continuing education courses and workshops, show the importance of a close link between educators and occupationally exposed professionals. Regarding training and education in the optimization of the procedures, it is essential that both teacher and student comprehend the exact meaning of ALARA concept. This implies that although the educator is the one who manages the physical basis of RP, the student is who teaches the educator about the procedures. This turns RP education into a dynamic process in which at the same time, both educator and student learn and teach. After the theoretical lectures, it is essential that students show their ability in applying the acquired knowledge in their everyday practice. Last nut not least, in order to fulfill the first RP principle,all medicine students need to be educated in RP and quality image criteria before the get their medical doctor degree. Our experience shows that RP education in diagnostic radiology requires an expert with both medical physics and Image technology knowledge that allow an approach to students work, language and everyday problems. Despite the fact that the main result of the Education Program is the way professionals improve their practice, another consequence was that the Regulatory Authority of the country called the teacher team to coordinate the first RP national course. (Author) 14 refs.

  4. Preferencias matrimoniales en el área de los Cerrillos Canelones–Uruguay

    Directory of Open Access Journals (Sweden)

    Abin, Emilia

    2007-01-01

    Full Text Available El objetivo de la investigación es estudiar las preferencias matrimoniales de la segunda y tercera generación de descendientes de inmigrantes canarios en el área de influencia de Los Cerrillos, Departamento de Canelones, Uruguay. A partir de 105 entrevistas realizadas a los descendientes canarios establecidos en la zona, se realizó la reconstrucción genealógica a través del programa GenoPro (2095 individuos en total, 67 ancestros fundadores, con el fin de estimar las preferencias matrimoniales de los mismos. Los resultados obtenidos muestran una tendencia a uniones dentro del grupo de pertenencia, encontrándose valores altos de endogamia y consanguinidad; los cuales se mantienen a través de varias generaciones. Se discute si las causas que contribuyen a mantener esta conducta en la elección del cónyuge, son de carácter cultural (la búsqueda de reafirmar la identidad como elemento unificador, geográfico (la existencia de barreras naturales que aislan a las familias o económicas (mantener dentro de la familia los bienes y la tierra adquiridas.

  5. Biología, medicina y eugenesia en Uruguay

    Directory of Open Access Journals (Sweden)

    Barrán, Juan Pedro

    1999-12-01

    Full Text Available In this work are analyzed the deep relationships between biology, medicine and society that were settled down in the Uruguay along the XIX century as well as the process of «medicalization» and «biologization» of the social thought that take place along the first decades of the XX century, and the role that played the eugenic ideas and defenders of eugenics in that process.

    En este trabajo se analizan las profundas relaciones entre biología, medicina y sociedad que se establecieron en el Uruguay a lo largo del siglo XIX así como el proceso de medicalización y biologización del pensamiento social que se produce a lo largo de las primeras décadas del siglo XX, y el papel que jugaron en ese proceso las ideas eugénicas y los defensores de la eugenesia.

  6. Acianthera hygrophila(Orchidaceae, nuevo registro para Uruguay

    Directory of Open Access Journals (Sweden)

    Andrés J. Rossado

    2014-07-01

    Full Text Available Se reporta por primera vez para la flora de Uruguay la orquídea epífita Acianthera hygrophila (Barb. Rodr. Pridgeon & M.W. Chase. La misma fue hallada en el bosque ribereño del Río Yaguarón en el este del departamento de Cerro Largo próximo al límite con Brasil. Este registro representa el límite sur de distribución de la especie. Se presenta una descripción ampliada, ilustración y mapa de distribución de A. hygrophila, así como una clave para la identificación de las especies de Acianthera presentes en Uruguay

  7. Inercias y tranformaciones en las relaciones laborales del Uruguay

    Directory of Open Access Journals (Sweden)

    Francisco Pucci

    Full Text Available This work intends to analyze the evolution of the labor relations in Uruguay, at the cornerstone of the productive restructuring processes that began to be developed starting from the constitution of regional markets in the Southern Cone. The hypothesis we support is that the transformations in the world of labor ocurred in Uruguay cannot be attributed only to the application of an economical or social model specific to development, but are enrolled in long term structural modifications, associated to changes in the social relations ocurred worldwide. However, the concrete evolution verified in labor relations is explained by the specific characteristics of the processes of regional integration that are expressed in the conformation of MERCOSUL.

  8. ATLAS Virtual Visit Uruguay-19-05-2014

    CERN Multimedia

    2014-01-01

    In this opportunity the 2nd virtual visit to the CERN from Uruguay has been inserted into the 2nd International Congress Online on Education and New Media "La Kamera en Red" (May 19, 20, 21 2014), since it is now expanding to other countries in Latin-American and Europe. It is an original open possibility for local, regional and global citizens to share, show and create in a collective way about the diffusion of Science.

  9. Carbon isotopic compositions of the Cambrian-Ordovician carbonates in Tarim Basin

    Energy Technology Data Exchange (ETDEWEB)

    Peng, S.; He, H.; Shao, L.; Shi, Z.; Gao, Y. [China University of Mining and Technology, Beijing (China). Dept of Resource Exploitation Engineering

    2002-07-01

    Composition features of carbon and oxygen isotopes in marine carbonate rocks of Cambrian-Ordovician in Bachu area of Tarim Basin were researched. Factors influencing the variation of carbon isotope were analysed. The results show that the variation of {delta}{sup 13}C of the Cambrian-Ordovician marine carbonate rocks is closely related to the changes of sea level. The slower organic carbon burial during sea level fall from the Early Cambrian to Middle Cambrian led to a decrease of the {delta}{sup 13}C value of carbonate rocks of this stage. The rise of organic productivity together with a rapid burial of organic carbon during the rise of sea level in Early Ordivician led to an increase of the {delta}{sup 13}C value of carbonate rocks of this stage because of a high sulfate content in seawater in the Middle Cambrian, the reduction by sulfate bacteria caused an oxidation of organic matter, resulting in a decrease of the {delta}{sup 13} values. The negative {delta}{sup 13}C value in some samples may be related to the fractionation of CO{sub 2} emitted from magma activity or volcanism. 14 refs., 2 figs., 2 tabs.

  10. Genetic structure of honeybee populations from southern Brazil and Uruguay

    Directory of Open Access Journals (Sweden)

    Diniz Nilza Maria

    2003-01-01

    Full Text Available Apis mellifera scutellata was introduced to Brazil in 1956 and Africanized honeybee populations have now spread from Argentina to the southwestern United States. Temperate climatic restrictions seem to be a natural limit to Africanized honeybee expansion around parallels 35° to 40° SL. We used allozyme loci (Mdh-1 and Hk-1 and mtDNA haplotypes to characterize honeybee populations in southern Brazil and Uruguay and define a possible transition area between Africanized and European bees. Samples of 194 bee colonies were collected from ten localities between 30°-35° SL and 52°-59° WL. The mtDNA restriction patterns of these colonies were obtained through digestion of the mitochondrial genome by Eco RI, or by digestion by Bgl II and Xba I of the cytochrome B locus and the COI-COII intergenic region, respectively. The distribution limit of African bee colonies, i.e., those populations with only the African mtDNA haplotype and with a high proportion of African genes as shown by allozyme analysis, is located in northern Uruguay, with a hybridization zone located farther south in Uruguay. A gradual cline from north to south was observed, confirmed by mtDNA, racial admixture, and genetic distance analyses. No evidence of either gametic disequilibrium between nuclear markers or cytonuclear disequilibrium among the nuclear and mtDNA genotypes was detected, suggesting that the hybridization process has been completed.

  11. The Impact of the Uruguay Round on World Agriculture

    Directory of Open Access Journals (Sweden)

    Chung-Sil Kim

    2002-12-01

    Full Text Available This paper focuses on the impact of the Uruguay Round (UR implementation on world agriculture using a multi-regional general equilibrium model and the mapping function of the Geographic Information System (GIS. The results of this study show that the Uruguay Round has had a negative impact on world agriculture in the light of total food production and food distribution. For commodities such as grains, while grain production rises in exporting countries, the effect is not sufficient to cover the fall in production in importing countries. In particular, the impact is serious on food security in importing countries of agricultural products. The negative impact is almost concentrated in importing countries, particularly Japan, the European Union (EU and South Korea. As is clearly visible on the maps produced by the GIS function, the real state of world agriculture as well as the results evaluated by this Computable General Equilibrium (CGE model has changed negatively in major importing countries and particularly the Least Developed Countries (LDCs, Sub-Saharan Africa following the Uruguay Round.

  12. Odonata de Uruguay: lista de especies y nuevos registros Odonata from Uruguay: species list and new records

    Directory of Open Access Journals (Sweden)

    Natalia Von Ellenrieder

    2009-06-01

    Full Text Available Se proporciona una lista de las 70 especies citadas para Uruguay. Catorce de ellas constituyen nuevos registros para el país: Mnesarete pruinosa (Hagen en Selys [Calopterygidae, Acanthagrion lancea Selys, A. peruvianum Leonard, Argia serva Hagen en Selys y Oxyagrion chapadense Costa (Coenagrionidae, Neoneura ethela Williamson (Protoneuridae, Progomphus costalis Hagen en Selys (Gomphidae, Elasmothemis constricta (Calvert, Erythrodiplax basalis (Kirby, Erythrodiplax media Borror, Micrathyria hypodidyma Calvert, Micrathyria ringueleti Rodrigues Capitulo, Orthemis ambinigra Calvert y Perithemis icteroptera (Selys en Sagra (Libelullidae.A list of 70 species known to occur in Uruguay is given. Fourteen species are new country records: Mnesarete pruinosa (Hagen in Selys (Calopterygidae, Acanthagrion lancea Selys, A. peruvianum Leonard, Argia serva Hagen in Selys, and Oxyagrion chapadense Costa (Coenagrionidae, Neoneura ethela Williamson (Protoneuridae, Progomphus costalis Hagen in Selys (Gomphidae, Elasmothemis constricta (Calvert, Erythrodiplax basalis (Kirby, Erythrodiplax media Borror, Micrathyria hypodidyma Calvert, Micrathyria ringueleti Rodrigues Capitulo, Orthemis ambinigra Calvert, and Perithemis icteroptera (Selys in Sagra (Libelullidae.

  13. Controversias cientifico-publicas. El caso del conflicto por las "papeleras" entre Argentina y Uruguay y la participacion ciudadana

    National Research Council Canada - National Science Library

    Sannazzaro, Jorgelina

    2011-01-01

    En este articulo se aborda el conflicto que mantienen desde el 2002 Argentina y Uruguay, debido a la instalacion de plantas de celulosa en territorio uruguayo, sobre las aguas binacionales del Rio Uruguay...

  14. Grupos wallpaper e sua relação com cohomologia de grupos

    OpenAIRE

    Martins, Rafaella de Souza [UNESP

    2014-01-01

    O objetivo principal deste trabalho e estudar a relação entre cohomologia de grupos e o problema de classificar grupos wallpaper, que são grupos de simetrias de certas figuras do plano chamadas padrões wallpaper. Há, a menos de equivalência, exatamente 17 grupos wallpaper, que classificamos usando teoria dos grupos e algebra linear. Dado um grupo wallpaper G, temos associado inicialmente a G um subgrupo abeliano normal T (subgrupo das translações) chamado reticulado, um grupo G0 = G=T chamado...

  15. MicroRNAs and metazoan macroevolution: insights into canalization, complexity, and the Cambrian explosion.

    Science.gov (United States)

    Peterson, Kevin J; Dietrich, Michael R; McPeek, Mark A

    2009-07-01

    One of the most interesting challenges facing paleobiologists is explaining the Cambrian explosion, the dramatic appearance of most metazoan animal phyla in the Early Cambrian, and the subsequent stability of these body plans over the ensuing 530 million years. We propose that because phenotypic variation decreases through geologic time, because microRNAs (miRNAs) increase genic precision, by turning an imprecise number of mRNA transcripts into a more precise number of protein molecules, and because miRNAs are continuously being added to metazoan genomes through geologic time, miRNAs might be instrumental in the canalization of development. Further, miRNAs ultimately allow for natural selection to elaborate morphological complexity, because by reducing gene expression variability, miRNAs increase heritability, allowing selection to change characters more effectively. Hence, miRNAs might play an important role in shaping metazoan macroevolution, and might be part of the solution to the Cambrian conundrum.

  16. Currency Substitution in Argentina, Mexico, and Uruguay (Substitution de monnaie en Argentine, au Mexique et en Uruguay) (Sustitución de moneda en Argentina, México y Uruguay)

    OpenAIRE

    C. L. Ramirez-Rojas

    1985-01-01

    The paper analyzes currency substitution--the demand for foreign money--in Argentina, Mexico, and Uruguay. Domestic residents usually seek foreign currency because trade and tourism require the use of foreign exchange. In Argentina, Mexico, and Uruguay, however, the demand for foreign exchange by domestic residents has gone well beyond the requirements of international trade and tourism. These countries have witnessed a sharp decline in real money balances denominated in domestic currency dur...

  17. grupos virtuales de aprendizaje colaborativo

    Directory of Open Access Journals (Sweden)

    Ángel Torres Velandia

    2002-01-01

    Full Text Available Diversas experiencias de educación superior, virtual y a distancia, en las que hemos participado demuestran que la revolución tecnológica, en el contexto de la sociedad de la información, propicia cambios comunicacionales y educativos que favorecen la preparación profesional de cientos de jóvenes y adultos que, de otra manera, difícilmente llegarían a desarrollar autonomía e iniciativa propias para emprender y autodirigir procesos de aprendizaje personales, así como para trabajar en entornos virtuales colaborativos, mediante el uso racional y crítico de una variedad de herramientas y recursos técnicos y pedagógicos. Por lo que pretendemos: a analizar la naturaleza y aspectos básicos de las comunidades virtuales de aprendizaje (CVA y los grupos virtuales de aprendizaje colaborativo (GVAC, y b registrar los avances y las limitaciones de tres proyectos de investigación y desarrollo de la UAM-Xochimilco: 1 Red electrónica de la UAM para la formación virtual de tutores e investigadores de los sistemas de educación superior a distancia (SESAD. 2 Formación de docentes-tutores para la enseñanza y el aprendizaje en ambientes presenciales, virtuales y a distancia. 3 La experiencia de interacción y cooperación de dos tipos diferentes de grupos de aprendizaje: los del sistema modular de la UAM-Xochimilco y los de la Universitat Oberta de Catalunya, UOC.

  18. Geochemistry of Sulfur and Sulfur Compounds of the Cambrian Kuonamka Complex (Eastern Siberian Platform)

    OpenAIRE

    T.M. Parfenova

    2017-01-01

    New results of research of sulfur from rocks and organic matter (OM) for the Kuonamka complex of the Lower and Middle Cambrian in the eastern Siberian platform have been demonstrated. It has been shown that in the rocks enriched in organic matter the amount of organic carbon controls not only the total content of sulfur and sulfide sulfur, but also the content of sulphate sulfur. It has been revealed that the sulfur content in bitumen extracts of Cambrian black shales in the northeastern Sibe...

  19. A survey of Senecio spp. affecting livestock in Uruguay and their associated pyrrolizidine alkaloid content

    Science.gov (United States)

    In Eastern Uruguay there has been a significant increase of seneciosis in grazing livestock with most affected localities related to counties neighboring the Brazilian border. A survey in 28 farms associated with poisoning outbreaks in grazing cattle in Eastern Uruguay was carried out. Fifty populat...

  20. 78 FR 8435 - Importation of Fresh Citrus Fruit From Uruguay, Including Citrus Hybrids and Fortunella

    Science.gov (United States)

    2013-02-06

    ..., and two species of the Citrus- related genus Fortunella (F. japonica Thunb. Swingle and F. margarita... Genus Fortunella (F. japonica (Thunb.) Swingle, F. margarita (Lour.) Swingle), from Uruguay into the..., Fortunella. japonica (Thunb.) Swingle, and F. margarita (Lour.) Swingle, from Uruguay that meet the...

  1. Extraordinary fossils reveal the nature of Cambrian life: a commentary on Whittington (1975) ‘The enigmatic animal Opabinia regalis, Middle Cambrian, Burgess Shale, British Columbia’

    Science.gov (United States)

    Briggs, Derek E. G.

    2015-01-01

    Harry Whittington's 1975 monograph on Opabinia was the first to highlight how some of the Burgess Shale animals differ markedly from those that populate today's oceans. Categorized by Stephen J. Gould as a ‘weird wonder’ (Wonderful life, 1989) Opabinia, together with other unusual Burgess Shale fossils, stimulated ongoing debates about the early evolution of the major animal groups and the nature of the Cambrian explosion. The subsequent discovery of a number of other exceptionally preserved fossil faunas of Cambrian and early Ordovician age has significantly augmented the information available on this critical interval in the history of life. Although Opabinia initially defied assignment to any group of modern animals, it is now interpreted as lying below anomalocaridids on the stem leading to the living arthropods. This commentary was written to celebrate the 350th anniversary of the journal Philosophical Transactions of the Royal Society. PMID:25750235

  2. Extraordinary fossils reveal the nature of Cambrian life: a commentary on Whittington (1975) 'The enigmatic animal Opabinia regalis, Middle Cambrian, Burgess Shale, British Columbia'.

    Science.gov (United States)

    Briggs, Derek E G

    2015-04-19

    Harry Whittington's 1975 monograph on Opabinia was the first to highlight how some of the Burgess Shale animals differ markedly from those that populate today's oceans. Categorized by Stephen J. Gould as a 'weird wonder' (Wonderful life, 1989) Opabinia, together with other unusual Burgess Shale fossils, stimulated ongoing debates about the early evolution of the major animal groups and the nature of the Cambrian explosion. The subsequent discovery of a number of other exceptionally preserved fossil faunas of Cambrian and early Ordovician age has significantly augmented the information available on this critical interval in the history of life. Although Opabinia initially defied assignment to any group of modern animals, it is now interpreted as lying below anomalocaridids on the stem leading to the living arthropods. This commentary was written to celebrate the 350th anniversary of the journal Philosophical Transactions of the Royal Society.

  3. PRIMER REGISTRO DE LYCOPODIUM CLAVATUM (LYCOPODIACEAE PARA URUGUAY

    Directory of Open Access Journals (Sweden)

    Héctor A. González

    2016-01-01

    Full Text Available Se registra por primera vez para la flora uruguaya a Lycopodium clavatum (Lycopodiaceae, hallada en los departamentos de Durazno y Maldonado. Este nuevo registro extiende su área de distribución, es- tableciendo las localidades situadas en el centro y este del Uruguay como el límite distribucional austral de Lycopodium s. str. Se presenta una descripción diagnóstica, un mapa de distribución en el país, así como la ilustración de la especie y fotografías del hábitat.

  4. Institutional regime of public-private participation in Uruguay

    Directory of Open Access Journals (Sweden)

    Pablo Schiavi

    2017-01-01

    Full Text Available Recently enacted legislation on Public Private Partnerships in Uruguay provides a new institutional framework for the designing, structuring and subscription of contracts in ppp projects. Among its provisions, the new statute allocates competences to different administrative bodies for the execution, regulation and control of PPP s. Later administrative regulations were also adopted to facilitate the implementation and execution of this type of contracts. The present article studies these reforms, in order to provide a better understanding of the role played by the Technical Commission of the PPP Unit.

  5. Uruguay: cómo nos cambia la vida

    OpenAIRE

    Schmal, Rodolfo

    2012-01-01

    La evolución política latinoamericana, particularmente en el cono sur –Uruguay, Chile y Argentina- en los últimos 50 años ha experimentado cambios significativos, desde los tiempos en que los formalismos democráticos eran puestos a prueba por crisis económicas y sociales que desembocaban en crisis políticas, las que por lo general terminaban “resolviéndose” por la vía militar. Agotada esta instancia, los países han tendido a retomar los cauces democráticos. Hoy nos encontramos inmersos en la ...

  6. Gut contents as direct indicators for trophic relationships in the Cambrian marine ecosystem.

    Directory of Open Access Journals (Sweden)

    Jean Vannier

    Full Text Available Present-day ecosystems host a huge variety of organisms that interact and transfer mass and energy via a cascade of trophic levels. When and how this complex machinery was established remains largely unknown. Although exceptionally preserved biotas clearly show that Early Cambrian animals had already acquired functionalities that enabled them to exploit a wide range of food resources, there is scant direct evidence concerning their diet and exact trophic relationships. Here I describe the gut contents of Ottoia prolifica, an abundant priapulid worm from the middle Cambrian (Stage 5 Burgess Shale biota. I identify the undigested exoskeletal remains of a wide range of small invertebrates that lived at or near the water sediment interface such as hyolithids, brachiopods, different types of arthropods, polychaetes and wiwaxiids. This set of direct fossil evidence allows the first detailed reconstruction of the diet of a 505-million-year-old animal. Ottoia was a dietary generalist and had no strict feeding regime. It fed on both living individuals and decaying organic matter present in its habitat. The feeding behavior of Ottoia was remarkably simple, reduced to the transit of food through an eversible pharynx and a tubular gut with limited physical breakdown and no storage. The recognition of generalist feeding strategies, exemplified by Ottoia, reveals key-aspects of modern-style trophic complexity in the immediate aftermath of the Cambrian explosion. It also shows that the middle Cambrian ecosystem was already too complex to be understood in terms of simple linear dynamics and unique pathways.

  7. Carbonate rocks of Cambrian and Ordovician age in the Lancaster quadrangle, Pennsylvania

    Science.gov (United States)

    Meisler, Harold; Becher, Albert E.

    1968-01-01

    Detailed mapping has shown that the carbonate rocks of Cambrian and Ordovician age in the Lancaster quadrangle, Pennsylvania, can be divided into 14 rock-stratigraphic units. These units are defined primarily by their relative proportions of limestone and dolomite. The oldest units, the Vintage, Kinzers, and Ledger Formations of Cambrian age, and the Conestoga Limestone of Ordovician age are retained in this report. The Zooks Corner Formation, of Cambrian age, a dolomite unit overlying the Ledger Dolomite, is named here for exposures along Conestoga Creek near the village of Zooks Corner. The Conococheague (Cambrian) and Beekmantown (Ordovician) Limestones, as mapped by earlier workers, have been elevated to group rank and subdivided into formations that are correlated with and named for geologic units in Lebanon and Berks Counties, Pa. These formations, from oldest to youngest, are the Buffalo Springs, Snitz Creek, Millbach, and Richland Formations of the Conococheague Group, and the Stonehenge, Bpler, and Ontelaunee Formations of the Beekmantown Group. The Annville and Myerstown Limestones, which are named for lithologically similar units in Dauphin and Lebanon Counties, Pa., overlie the Beekmantown Group in one small area in the quadrangle.

  8. Groundwater quality in the Cambrian-Ordovician aquifer system, midwestern United States

    Science.gov (United States)

    Stackelberg, Paul E.

    2017-12-07

    Groundwater provides nearly 50 percent of the Nation’s drinking water. To help protect this vital resource, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project assesses groundwater quality in aquifers that are important sources of drinking water (Burow and Belitz, 2014). The Cambrian-Ordovician aquifer system constitutes one of the important areas being evaluated.

  9. Impacto de estrategias colectivas en la sustentabilidad de sistemas familiares lecheros en Uruguay Impact of collective strategies on the sustainability of family dairy systems in Uruguay

    Directory of Open Access Journals (Sweden)

    R García Ferreira

    2011-03-01

    Full Text Available En los últimos años, los procesos de insustentabilidad que transitan los sistemas de producción familiares lecheros de pequeña escala han sido una importante preocupación para gremiales de productores y equipos de intervención e investigación. La Asociación de Productores Lecheros San José, Uruguay, y diversos equipos universitarios han desarrollado experiencias de desarrollo rural y apoyos a la producción, tendientes a mejorar los niveles de ingresos y la calidad de vida de estas familias, fortaleciendo los procesos colectivos como contratendencias a ese proceso central. El presente trabajo tiene como objetivo analizar el estado de sustentabilidad de los sistemas familiares lecheros del Departamento de San José, considerando sus dimensiones social, económica y agroecológica; se aplicó una metodología de evaluación a través de indicadores de sustentabilidad en 100 de estos sistemas y se analizó la influencia que tienen sobre ello el uso y la adopción de estrategias colectivas de apoyo a la producción. Entre los principales resultados, resalta que los sistemas que incorporaron más estrategias colectivas (tres o más presentaron mayores valores, en general, para varios de los indicadores productivos y económicos (un incremento de 66% en el ingreso predial per cápita, 39% en litros/ha y 73% en PB/ha en promedio que aquellos que las adoptaron de forma aislada (una sola estrategia. Se concluye que el análisis de estos 100 establecimientos orienta a seguir en el camino de la generación y estudio de este tipo de estrategias colectivas, que sirven fundamentalmente como alternativas en la generación de contratendencias que puedan disminuir, amortiguar o revertir la desaparición y degradación de los sistemas familiares lecheros como grupo social.In recent years, the unsustainability processes undergone by small scale family dairy systems have been an important concern for farmer guilds and intervention and research teams. The

  10. Comprehensive insight of the Cambrian carbonate platform types as well as margin segmentation characteristics' exploration in Tarim Basin, China

    Directory of Open Access Journals (Sweden)

    Xinfeng Ni

    2016-02-01

    Full Text Available The carbonate platform types and features of the platform margin belt plays an important role in controlling the reservoir formation; it also affects the relationship between reservoirs and caps. The Cambrian carbonate platform in the Tarim Basin underwent three evolutionary processes, namely, the Early Cambrian ramp platform, the Middle Cambrian edging evaporative platform, and the Late Cambrian edging platform; the northern platform margin was the deposition type, whereas the eastern platform margin was for fault control, additionally, the Lungu-Gucheng had evident sectional differences. The line from Wushi-Kashi-Maigaiti-Hetian to Minfeng of the southwestern Tarim Basin was an ancient land in the Early Cambrian. Through evolution, the sea level raised the underwater lows in the Middle and Late Cambrian period that possibly developed it to platform edge deposits in the Late Cambrian. The carbonate platform margin of both steep slope and gentle slope formed different reservoir-seal assemblages. The Upper Cambrian aggradation-progradation platform margin reservoir in the steep slope of the eastern Lungu and Gucheng area was developed with good connectivity, its caprock had been always the key of the platform margin reservoir-seal assemblages. Therefore, the reef-beach located behind the platform margin belt near the seaside of the lagoon had favorable reservoirs; the reservoirs often overlaid carbonate caprock which formed good reservoir-seal assemblages. The platform margin belt in the gentle slope in the Well Yingmai 7-Well Yingmai 8, in west Tabei, was a dolomite reservoir for algal mound and reef-bank complex with caprock of middle-lower Cambrian dolomicrite, gypsum dolomite, and mud dolomite. Aforementioned dense layers' reservoir-seal assemblage was superior to that of the eastern Lungu and Gucheng that had better exploration prospects.

  11. Presentación grupo AUROVA

    OpenAIRE

    Automática, Robótica y Visión Artificial

    2010-01-01

    Presentación del Grupo de Automática Robótica y Visión Artificial y descripción de algunos de sus proyectos para la industria. Vídeo realizado para presentar algunas actividades del grupo AUROVA relacionadas con la industria. Más información en http://aurova.ua.es/

  12. The Cambrian-Ordovician rocks of Sonora, Mexico, and southern Arizona, southwestern margin of North America (Laurentia): chapter 35

    Science.gov (United States)

    Page, William R.; Harris, Alta C.; Repetski, John E.; Derby, James R.; Fritz, R.D.; Longacre, S.A.; Morgan, W.A.; Sternbach, C.A.

    2013-01-01

    Cambrian and Ordovician shelf, platform, and basin rocks are present in Sonora, Mexico, and southern Arizona and were deposited on the southwestern continental margin of North America (Laurentia). Cambrian and Ordovician rocks in Sonora, Mexico, are mostly exposed in scattered outcrops in the northern half of the state. Their discontinuous nature results from extensive Quaternary and Tertiary surficial cover, from Tertiary and Mesozoic granitic batholiths in western Sonora, and from widespread Tertiary volcanic deposits in the Sierra Madre Occidental in eastern Sonora. Cambrian and Ordovician shelf rocks were deposited as part of the the southern miogeocline on the southwestern continental margin of North America.

  13. Research on the Ediacaran and Cambrian of the Anti-Atlas and High Atlas Mountains, Morocco: An historical overview

    Science.gov (United States)

    Debrenne, Françoise

    2014-10-01

    Two periods of geological research can be recognized in the Ediacaran and Cambrian of Morocco. The period 1917-1945 is represented by an exploration phase that led to numerous discoveries of Cambrian faunas overlying conformably or unconformably, thick, metamorphic, Precambrian formations. The Moroccan Geological Society (SGM) published numerous geological maps with notices and regional monographies. The second period (1948-1995) allowed erection of detailed litho- and biostratigraphic sketches for stratigraphic subdivisions, among which the proposal of alternative (radiometric and chemostratigraphic) methods to precisely locate the Precambrian-Cambrian boundary in Morocco.

  14. Prevalence of type-specific HPV infection in Uruguay.

    Science.gov (United States)

    Berois, Nora; Heard, Isabelle; Fort, Zoraida; Alonso, Rafael; Sica, Adela; Moerzinger, Patricia; Rodriguez, Guillermo; Sancho-Garnier, Hélène; Osinaga, Eduardo; Favre, Michel

    2014-04-01

    The aim of this work was to describe the prevalence of type-specific Human papillomavirus (HPV) infection in women attending organized cervical cancer screening program in Uruguay. Nine hundred sixty-five liquid cervical cell samples obtained after collection of cervical smears for cytology were assessed for HPV DNA using the Papillocheck system (Greiner BioOne). The overall prevalence of High-Risk (HR) HPV infections was 20.8% and increased from 16.5% in women with normal cytology to 93.3% in HSIL. Prevalence of HPV 16 and/or 18 was 6.3% and HPV 16 was the most prevalent genotype in normal cytology (3.6%). The five most prevalent genotypes were HPV 16, 31, 51, 56, and 39. The overall prevalence peaked below age 30. This study provides essential baseline information at national level on type-specific HPV prevalence in Uruguay before the introduction of HPV vaccination. It documents the current prevalence of each of the oncogenic genotypes in a population attending cervical cancer screening program, suggesting that at least 64.7% of high risk lesions are potentially preventable by available HPV vaccines, and possibly augmentable if cross-protection against non-vaccine HPV types 31, 33, and 45 is confirmed. © 2013 Wiley Periodicals, Inc.

  15. Uruguay: el sur también existe

    Directory of Open Access Journals (Sweden)

    Carmen Morente Muñoz

    2013-06-01

    Full Text Available La República Oriental del Uruguay resulta un país bastante desconocido. Creador del primer “Estado del Bienestar”, a principios del siglo XX, sus particularidades no lo hacen tan distinto al resto de países de América Latina. Padeció la dictadura más cruenta del Cono Sur y las inclemencias de las políticas neoliberales. En 2004, el Frente Amplio, conquista la mayoría parlamentaria y el gobierno, abriendo un camino de esperanzas y de reconstrucción económica y social. A través de sus políticas públicas, ahora desarrolladas por el segundo gobierno de la izquierda (2010, hace frente a la realidad heredada: más de un tercio de su población había sido condenada a la pobreza. Palabras-clave: Uruguay, dictadura, impunidad, derechos humanos.

  16. Virtual Visit to the ATLAS Control Room by various towns in Uruguay

    CERN Multimedia

    2013-01-01

    Anilla Cultural Latinoamérica – Europa in Uruguay is a venture between ANEP, CES and UDELAR. In its line of action of scientific and technological culture they contact CERN for an open dialogue to divulge science, led to its teachers and students. The virtual "visit" of Uruguay at CERN is done from multiple video conferencing rooms in the country through the Uruguayan Academic Network. On 28th May six towns in Uruguay will be connected to the ATLAS Control Room: Montevideo, Maldonado, Rocha, Tacuarembó, Salto and Rivera.

  17. Disc-shaped fossils resembling porpitids or eldonids from the early Cambrian (Series 2: Stage 4) of western USA

    OpenAIRE

    Lieberman, Bruce S.; Kurkewicz, Richard; Shinogle, Heather; Kimmig, Julien; MacGabhann, Breand?n Anraoi

    2017-01-01

    The morphology and affinities of newly discovered disc-shaped, soft-bodied fossils from the early Cambrian (Series 2: Stage 4, Dyeran) Carrara Formation are discussed. These specimens show some similarity to the Ordovician Discophyllum Hall, 1847; traditionally this taxon had been treated as a fossil porpitid. However, recently it has instead been referred to as another clade, the eldonids, which includes the enigmatic Eldonia Walcott, 1911 that was originally described from the Cambrian Burg...

  18. Uruguay vasakpoolne president tahab vaeses riigis korra majja lüüa / Allan Espenberg

    Index Scriptorium Estoniae

    Espenberg, Allan

    2005-01-01

    Märtsikuus tuli Uruguays võimule vasakpoolne koalitsioon. President Tabare Vazquez peab kõige olulisemaks vaesusest jagusaamist riigis, välispoliitikas on tema eelistus sidemete arendamine teiste vasakpoolsete režiimidega

  19. LA FAMILIA APOCYNACEAE S. STR. (APOCYNOIDEAE, RAUVOLFIOIDEAE EN URUGUAY

    Directory of Open Access Journals (Sweden)

    J. Francisco Morales

    2010-01-01

    Full Text Available Se presenta un tratamiento de las Apocynaceae s. str. (Apocynoideae, Rauvolfioideae de Uruguay. Se reconocen diez especies de un total de siete géneros: Aspidosperma quebracho-blanco, Condylocarpon isthmicum, Forsteronia glabrescens, Mandevilla coccinea, M. emarginata, M. longiflora, M. petraea, Rhabdadenia madida, Tabernaemontana catharinensis, Vinca major. Se incluyen descripciones, claves, datos de distribución y especimenes examinados. Se seleccionan lectotipos para Dipladenia xanthosoma var. major, Echites emarginatus, E. erectus, E. grandiflorus var. minor, E. pinifolius, Laseguea erecta var. guilleminia f. griseo-olivacea , L. erecta var. obliquinervia f. ovata subf. griseofusca y subf. griseo-olivacea, L. guilleminiana, Macrosiphonia verticillata var. intermedia, M. verticillata var. peduncularis, M. pinifolia f. glabrata y M. pinifolia f. setosa Se designa un neotipo para Aspidosperma quebracho-blanco.

  20. An estimation of the wage curve for Uruguay

    Directory of Open Access Journals (Sweden)

    González Rodríguez-Villamil Cecilia

    2012-09-01

    Full Text Available La existencia de la relación empírica entre salario y desempleo en Uruguay, se analizada en este trabajo. Se estiman varios modelos para el período 1986-2005 utilizando dos aproximaciones para medir el salario. Se obtiene una elasticidad de -0,09 entre desempleo y salarios. La elasticidad es mayor para los jóvenes, las mujeres y los menos educados. Los resultados indican que la elasticidad crece ante choques macroeconómicos adversos. Además, al desagregar por ocupación o formalidad e informalidad, los resultados sugieren que un aumento del desempleo produce un aumento de la informalidad y del cuentapropismo que lleva a una caída de los ingresos en estos sectores, que actúan como “amortiguador”.

  1. Abortion in Uruguay and Latin America: The position of citizens

    Directory of Open Access Journals (Sweden)

    Máximo Rossi

    2012-07-01

    Full Text Available Abortion is illegal in most Latin American countries, although there are some attenuating and exonerating causes in its practice. However, studies performed in countries with liberalizing processes for more than two decades, such as the United States, show the persistence of different attitudes towards abortion, which go from points of view that are pro-life to points of view that are pro-choice. Based on Latinobarómetro 2007, this paper analyzes the attitudinal patterns of individuals towards abortion, with emphasis on its degree of justification according to socio-economic features, faith and religion, as well as the countries’ own characteristics. Ordinary least squares estimates for 18 Latin American countries show that men under 40, agnostic, highly educated and with socioeconomic access are those that justify abortion the most; likewise, Uruguay —particularly its female population— is the country where it is most justified.

  2. La innovación en Uruguay. Problemas, instituciones, perspectivas

    Directory of Open Access Journals (Sweden)

    Judith Sutz

    1995-12-01

    Full Text Available En este trabajo se aborda la innovación en Uruguay desde dos puntos de vista: por una parte, se plantea la innovación como problema; por otra, se analiza el tejido institucional en el cual se desarrollan los procesos innovativos. La necesidad de esfuerzos en el marco del desarrollo científico-tecnológico mundial, la especificidad de un país pequeño, la inadecuación de las formas canónicas de la evaluación académica, el desconocimiento de los actores productivos acerca de la oferta local de soluciones, y la innovación como cuestión de Estado, constituyen el primer abordaje. El segundo presenta un mapa sintético de las diversas instituciones -incluyendo empresas- involucradas en procesos de innovación, señalando sus logros y limitaciones.

  3. AVANCE INSUFICIENTE: el caso del Ingreso Ciudadano en el Uruguay

    Directory of Open Access Journals (Sweden)

    Ximena Baráibar

    2009-01-01

    Full Text Available Enmarcado en la tradición de intervención estatal en Uruguay y en el desarrollo en América Latina a partir de los 90 de políticas de transferencia de ingresos, este artículo analiza el Programa “Ingreso Ciudadano” implementado en el 2005, para responder a la situación de emergencia social. Luego de caracterizarlo, se señalan sus principales contribuciones y limitaciones. Se trata de un programa que ha permitido el acceso a cierto nivel de protección a familias que no lo tenían y ha contribuido a reducir la indigencia, pero es muy baja su incidencia en la reducción de la pobreza y la desigualdad.

  4. A chancelloriid-like metazoan from the early Cambrian Chengjiang Lagerstätte, China

    Science.gov (United States)

    Hou, Xianguang; Williams, Mark; Siveter, David J.; Siveter, Derek J.; Gabbott, Sarah; Holwell, David; Harvey, Thomas H. P.

    2014-12-01

    Nidelric pugio gen. et sp. nov. from the Cambrian Series 2 Heilinpu Formation, Chengjiang Lagerstätte, Yunnan Province, China, is an ovoid, sac-like metazoan that bears single-element spines on its surface. N. pugio shows no trace of a gut, coelom, anterior differentiation, appendages, or internal organs that would suggest a bilateral body plan. Instead, the sac-like morphology invites comparison with the radially symmetrical chancelloriids. However, the single-element spines of N. pugio are atypical of the complex multi-element spine rosettes borne by most chancelloriids and N. pugio may signal the ancestral chancelloriid state, in which the spines had not yet fused. Alternatively, N. pugio may represent a group of radial metazoans that are discrete from chancelloriids. Whatever its precise phylogenetic position, N. pugio expands the known disparity of Cambrian scleritome-bearing animals, and provides a new model for reconstructing scleritomes from isolated microfossils.

  5. Cambrian spiral-plated echinoderms from Gondwana reveal the earliest pentaradial body plan.

    Science.gov (United States)

    Smith, Andrew B; Zamora, Samuel

    2013-08-22

    Echinoderms are unique among animal phyla in having a pentaradial body plan, and their fossil record provides critical data on how this novel organization came about by revealing intermediate stages. Here, we report a spiral-plated animal from the early Cambrian of Morocco that is the most primitive pentaradial echinoderm yet discovered. It is intermediate between helicoplacoids (a bizarre group of spiral-bodied echinoderms) and crown-group pentaradiate echinoderms. By filling an important gap, this fossil reveals the common pattern that underpins the body plans of the two major echinoderm clades (pelmatozoans and eleutherozoans), showing that differential growth played an important role in their divergence. It also adds to the striking disparity of novel body plans appearing in the Cambrian explosion.

  6. Los seguros ambientales en Uruguay - Validez de las cláusulas claims made

    OpenAIRE

    Ifrán, Geraldine

    2009-01-01

    he document presented tackles the study of environmental insurance, from its own history through its environmental policy and mandatory character and spe- cifically locating its regulation in Uruguay. The environmental legislation is stu- died in-depht as well as practical aspects. Taking into account the claims made modality in environmental insurance, such coverage is analyzed drawing a con- clusion about its validity in Uruguay law. Key words author: Environmental civil liability insurance...

  7. Formation of the 'Great Unconformity' as a trigger for the Cambrian explosion.

    Science.gov (United States)

    Peters, Shanan E; Gaines, Robert R

    2012-04-18

    The transition between the Proterozoic and Phanerozoic eons, beginning 542 million years (Myr) ago, is distinguished by the diversification of multicellular animals and by their acquisition of mineralized skeletons during the Cambrian period. Considerable progress has been made in documenting and more precisely correlating biotic patterns in the Neoproterozoic-Cambrian fossil record with geochemical and physical environmental perturbations, but the mechanisms responsible for those perturbations remain uncertain. Here we use new stratigraphic and geochemical data to show that early Palaeozoic marine sediments deposited approximately 540-480 Myr ago record both an expansion in the area of shallow epicontinental seas and anomalous patterns of chemical sedimentation that are indicative of increased oceanic alkalinity and enhanced chemical weathering of continental crust. These geochemical conditions were caused by a protracted period of widespread continental denudation during the Neoproterozoic followed by extensive physical reworking of soil, regolith and basement rock during the first continental-scale marine transgression of the Phanerozoic. The resultant globally occurring stratigraphic surface, which in most regions separates continental crystalline basement rock from much younger Cambrian shallow marine sedimentary deposits, is known as the Great Unconformity. Although Darwin and others have interpreted this widespread hiatus in sedimentation on the continents as a failure of the geologic record, this palaeogeomorphic surface represents a unique physical environmental boundary condition that affected seawater chemistry during a time of profound expansion of shallow marine habitats. Thus, the formation of the Great Unconformity may have been an environmental trigger for the evolution of biomineralization and the 'Cambrian explosion' of ecologic and taxonomic diversity following the Neoproterozoic emergence of animals.

  8. Lead contamination in Uruguay: the "La Teja" neighborhood case.

    Science.gov (United States)

    Mañay, Nelly; Cousillas, Adriana Z; Alvarez, Cristina; Heller, Teresa

    2008-01-01

    Lead, ubiquitous in the environment as a result of mining and industrialization, is found as a contaminant in humans although it has no known physiological function there. Lead-exposed children are known to be the population with the highest potential health risks. The recommended biomarker to assess environmental lead exposure in animals is lead level in blood. Before 2001, the Department of Toxicology and Environmental Hygiene was the only team to produce human monitoring data on Uruguayan populations (Manay 2001a,b; Mañay et al. 1999). Lead pollution in Uruguay first received official attention during the 2001 La Teja poisoning episode. It was in the La Teja neighbourhood of Montevideo that high BLL were found in children (as high as 20 microg/dL), prompting corrective responses from Health and Environmental authorities. Growing awareness of environmental lead pollution and consequential human health effects from that event, resulted in public debate and demands for solutions from Health and Environmental authorities. Citizens demanded public disclosure of information concerning lead pollution and wanted action to address contaminated Uruguayan sites. In response, the Ministry of Health assembled an interinstitutional multidisciplinary committee, with delegates from health, environmental, labor, educational, and social security authorities, as well as community nongovernmental organizations (NGOs), among others. The University of the Republic was designated to serve as the main responsible entity for technical advice and support. After 2001, new research on lead pollution was undertaken and included multidisciplinary studies with communities in response to health risk alerts. The main emphasis was placed on children exposed to environmental lead. Major sources of Uruguayan lead contamination, similar to those in other developing countries, result from metallurgical industries, lead-acid battery processing, lead wire and pipe factories, metal foundries, metal

  9. Globalización, cambios en la estructura de poder y nuevas elites empresariales: una mirada comparada de Uruguay

    Directory of Open Access Journals (Sweden)

    Miguel Serna

    2013-06-01

    Full Text Available El artículo tiene como objetivo principal abordar la problemática de los cambios en la composición de las elites empresariales en el último ciclo de globalización económica neoliberal desde la literatura teórica comparada reciente y luego un análisis específico a partir de los estudios existentes en la temática sobre Uruguay. El trabajo desarrolla un análisis comparativo de enfoques y estudios sobre elites económicas que señalan cinco tipos de procesos de cambios en las últimas décadas de hegemonía del ciclo de desarrollo neoliberal. En primer término, procesos de convergencia y divergencia entre las trayectorias de las elites políticas y económicas. En segundo lugar, procesos de especialización funcional y diversificación de grupos dirigentes en las distintas fuentes de poder económico. Tercero, la existencia de mecanismos de reclutamiento y reproducción de las elites económicas que se relacionan con las formas de dominación en la sociedad. Cuarto, la producción nuevos y viejos mecanismos de legitimación del poder económico, que combinan formas de capital económico y simbólico. Por último, la creciente centralidad de las redes globales y modos de transnacionalización del capital en la conformación de los grupos de elites empresariales. El análisis de la literatura y estudios sobre elites empresariales en el Uruguay en las últimas décadas muestra tendencias similares (a escala de una economía y país pequeño donde se está asistiendo a cambios en las composición de las elites empresariales con una creciente importancia del capital transnacional, y de nuevos elencos ejecutivos que se apoyan más en una forma de control y gestión profesionalizada de las empresas, en redes globales y nuevas formas de capital social. Estas transformaciones contrastan con los perfiles clásicos de empresarios reclutados por medio del capital familiar y prestigio heredado y la pertenencia a gremiales tradicionales y c

  10. Cambrian stem-group annelids and a metameric origin of the annelid head.

    Science.gov (United States)

    Parry, Luke; Vinther, Jakob; Edgecombe, Gregory D

    2015-10-01

    The oldest fossil annelids come from the Early Cambrian Sirius Passet and Guanshan biotas and Middle Cambrian Burgess Shale. While these are among the best preserved polychaete fossils, their relationship to living taxa is contentious, having been interpreted either as members of extant clades or as a grade outside the crown group. New morphological observations from five Cambrian species include the oldest polychaete with head appendages, a new specimen of Pygocirrus from Sirius Passet, and an undescribed form from the Burgess Shale. We propose that the palps of Canadia are on an anterior segment bearing neuropodia and that the head of Phragmochaeta is formed of a segment bearing biramous parapodia and chaetae. The unusual anatomy of these taxa suggests that the head is not differentiated into a prostomium and peristomium, that palps are derived from a modified parapodium and that the annelid head was originally a parapodium-bearing segment. Canadia, Phragmochaeta and the Marble Canyon annelid share the presence of protective notochaetae, interpreted as a primitive character state subsequently lost in Pygocirrus and Burgessochaeta, in which the head is clearly differentiated from the trunk. © 2015 The Authors.

  11. Life cycle and morphology of a cambrian stem-lineage loriciferan.

    Directory of Open Access Journals (Sweden)

    John S Peel

    Full Text Available Cycloneuralians form a rich and diverse element within Cambrian assemblages of exceptionally preserved fossils. Most resemble priapulid worms whereas other Cycloneuralia (Nematoda, Nematomorpha, Kinorhyncha, Loricifera, well known at the present day, have little or no fossil record. First reports of Sirilorica Peel, 2010 from the lower Cambrian Sirius Passet fauna of North Greenland described a tubular lorica covering the abdomen and part of a well developed introvert with a circlet of 6 grasping denticles near the lorica. The introvert is now known to terminate in a narrow mouth tube, while a conical anal field is also developed. Broad muscular bands between the plates in the lorica indicate that it was capable of movement by rhythmic expansion and contraction of the lorica. Sirilorica is regarded as a macrobenthic member of the stem-lineage of the miniaturised, interstitial, present day Loricifera. Like loriciferans, Sirilorica is now known to have grown by moulting. Evidence of the life cycle of Sirilorica is described, including a large post-larval stage and probably an initial larva similar to that of the middle Cambrian fossil Orstenoloricusshergoldii.

  12. The controversial "Cambrian" fossils of the Vindhyan are real but more than a billion years older.

    Science.gov (United States)

    Bengtson, Stefan; Belivanova, Veneta; Rasmussen, Birger; Whitehouse, Martin

    2009-05-12

    The age of the Vindhyan sedimentary basin in central India is controversial, because geochronology indicating early Proterozoic ages clashes with reports of Cambrian fossils. We present here an integrated paleontologic-geochronologic investigation to resolve this conundrum. New sampling of Lower Vindhyan phosphoritic stromatolitic dolomites from the northern flank of the Vindhyans confirms the presence of fossils most closely resembling those found elsewhere in Cambrian deposits: annulated tubes, embryo-like globules with polygonal surface pattern, and filamentous and coccoidal microbial fabrics similar to Girvanella and Renalcis. None of the fossils, however, can be ascribed to uniquely Cambrian or Ediacaran taxa. Indeed, the embryo-like globules are not interpreted as fossils at all but as former gas bubbles trapped in mucus-rich cyanobacterial mats. Direct dating of the same fossiliferous phosphorite yielded a Pb-Pb isochron of 1,650 +/- 89 (2sigma) million years ago, confirming the Paleoproterozoic age of the fossils. New U-Pb geochronology of zircons from tuffaceous mudrocks in the Lower Vindhyan Porcellanite Formation on the southern flank of the Vindhyans give comparable ages. The Vindhyan phosphorites provide a window of 3-dimensionally preserved Paleoproterozoic fossils resembling filamentous and coccoidal cyanobacteria and filamentous eukaryotic algae, as well as problematic forms. Like Neoproterozoic phosphorites a billion years later, the Vindhyan deposits offer important new insights into the nature and diversity of life, and in particular, the early evolution of multicellular eukaryotes.

  13. Self-regulation of trilobite diversity in Murero (middle Cambrian, Spain) due to compensatory extinction

    Energy Technology Data Exchange (ETDEWEB)

    Lopez-Villalta, J.S.

    2016-07-01

    As species accumulate in a community, competition for available ecospace is expected to prevent the addition of new species and to facilitate species extinction, thus producing a dynamic equilibrium of diversity. This mechanism remains under debate since its empirical support comes mainly from indirect or partial evidence, with very few direct tests at the species level. Here a new method is described to detect the presence of selfregulation feedbacks between species richness and turnover rates. It consists of Monte Carlo simulations which randomize the distribution of species ranges among stratigraphic intervals, providing predictions which allow the detection of genuine self-regulation feedbacks in the real data. Since the simulations include any potential bias due to preservation, sampling, or change in depositional environment, and these biases would also affect the real dataset, they are thus ruled out as explanations for any difference found. This method is applied to one of the best known fossiliferous sequences worldwide, the Rambla de Valdemiedes in Murero (RV1 section, middle Cambrian, Spain), a classic locality that has been studied for more than 150 years and which stands out due to its excellent sampling density, continuous deposition, and homogeneous fossil preservation. The results show that trilobite species richness was self-regulated due to positive feedback with extinction rate, which implies that compensatory extinction regulated this fauna in spite of the on-going Cambrian radiation. The lack of evidence of any origination feedback suggests ecological opportunities were not limiting for new species to colonize this Cambrian community. (Author)

  14. Cambrian stem-group annelids and a metameric origin of the annelid head

    Science.gov (United States)

    Parry, Luke; Vinther, Jakob; Edgecombe, Gregory D.

    2015-01-01

    The oldest fossil annelids come from the Early Cambrian Sirius Passet and Guanshan biotas and Middle Cambrian Burgess Shale. While these are among the best preserved polychaete fossils, their relationship to living taxa is contentious, having been interpreted either as members of extant clades or as a grade outside the crown group. New morphological observations from five Cambrian species include the oldest polychaete with head appendages, a new specimen of Pygocirrus from Sirius Passet, and an undescribed form from the Burgess Shale. We propose that the palps of Canadia are on an anterior segment bearing neuropodia and that the head of Phragmochaeta is formed of a segment bearing biramous parapodia and chaetae. The unusual anatomy of these taxa suggests that the head is not differentiated into a prostomium and peristomium, that palps are derived from a modified parapodium and that the annelid head was originally a parapodium-bearing segment. Canadia, Phragmochaeta and the Marble Canyon annelid share the presence of protective notochaetae, interpreted as a primitive character state subsequently lost in Pygocirrus and Burgessochaeta, in which the head is clearly differentiated from the trunk. PMID:26445984

  15. Uruguay; Report on Observance of Standards and Codes-Data Module and the Response by the Authorities

    OpenAIRE

    International Monetary Fund

    2001-01-01

    The paper provides a summary of Uruguay's practices with respect to the coverage, periodicity, and timeliness of the Special Data Dissemination Standard (SDDS) data categories, and an assessment of the quality of national accounts, prices, fiscal, monetary and financial, and external sector statistics. Uruguay has made good progress recently in improving the dissemination of statistical information. The Internet pages of the Central Bank of Uruguay (BCU) and the National Institute of Statisti...

  16. GRUPOS DE INVESTIGACIÓN FACULTAD DE CIENCIAS

    Directory of Open Access Journals (Sweden)

    VICTOR IGNACIO LÓPEZ RÍOS

    2016-07-01

    de investigacion de la Escuela de Fsica con la informacion de los ultimos dos a~nos (nombre del grupo de investigacion, lder del grupo, integrantes, proyectos vigentes y publicaciones recientes asociadas al grupo, entre otros aspectos.

  17. Cambrian-lower Middle Ordovician passive carbonate margin, southern Appalachians: Chapter 14

    Science.gov (United States)

    Read, J. Fred; Repetski, John E.

    2012-01-01

    The southern Appalachian part of the Cambrian–Ordovician passive margin succession of the great American carbonate bank extends from the Lower Cambrian to the lower Middle Ordovician, is as much as 3.5 km (2.2 mi) thick, and has long-term subsidence rates exceeding 5 cm (2 in.)/k.y. Subsiding depocenters separated by arches controlled sediment thickness. The succession consists of five supersequences, each of which contains several third-order sequences, and numerous meter-scale parasequences. Siliciclastic-prone supersequence 1 (Lower Cambrian Chilhowee Group fluvial rift clastics grading up into shelf siliciclastics) underlies the passive margin carbonates. Supersequence 2 consists of the Lower Cambrian Shady Dolomite–Rome-Waynesboro Formations. This is a shallowing-upward ramp succession of thinly bedded to nodular lime mudstones up into carbonate mud-mound facies, overlain by lowstand quartzose carbonates, and then a rimmed shelf succession capped by highly cyclic regressive carbonates and red beds (Rome-Waynesboro Formations). Foreslope facies include megabreccias, grainstone, and thin-bedded carbonate turbidites and deep-water rhythmites. Supersequence 3 rests on a major unconformity and consists of a Middle Cambrian differentiated rimmed shelf carbonate with highly cyclic facies (Elbrook Formation) extending in from the rim and passing via an oolitic ramp into a large structurally controlled intrashelf basin (Conasauga Shale). Filling of the intrashelf basin caused widespread deposition of thin quartz sandstones at the base of supersequence 4, overlain by widespread cyclic carbonates (Upper Cambrian lower Knox Group Copper Ridge Dolomite in the south; Conococheague Formation in the north). Supersequence 5 (Lower Ordovician upper Knox in the south; Lower to Middle Ordovician Beekmantown Group in the north) has a basal quartz sandstone-prone unit, overlain by cyclic ramp carbonates, that grade downdip into thrombolite grainstone and then storm

  18. DOBRAS ESTRUTURAIS: RUPTURA GENERATIVA EM GRUPOS SOBREPOSTOS

    Directory of Open Access Journals (Sweden)

    David Stark

    2010-04-01

    Full Text Available Os grupos empresariais enfrentam um desafio duplo: reconhecer e implementar novas ideias. O presente artigo sugere que oempreendedorismo está mais relacionado com a geração de novos conhecimentos, por meio da recombinação de recursos, doque com a importação de ideias. Em contraste com a perspectiva “intermediação mais fechamento”, enfocamos a sobreposiçãode estruturas coesas de grupos. Ao analisar processos de intercoesão de redes, identificamos uma topologia de rede distinta:a dobra estrutural. Os atores de uma dobra estrutural são membros de múltiplos grupos, o que facilita o acesso familiar a diversosrecursos. Nosso conjunto de dados permite observar laços pessoais entre as 1.696 maiores empresas húngaras de 1987a 2001. Primeiro, testamos se dobras estruturais contribuem para o desempenho de grupos. Segundo, como o empreendedorismoé um processo de ruptura generativa, testamos a contribuição das dobras estruturais para a instabilidade do grupo.Terceiro, passamos de métodos dinâmicos à análise histórica de redes, e demonstramos que a coerência é uma propriedadede genealogias entrelaçadas de coesão, construídas por meio de repetidas separações e reunificações.

  19. El conflicto en los grupos de trabajo

    OpenAIRE

    Munduate, Lourdes; Dorado, Miguel Ángel

    1999-01-01

    La dinámica de las relaciones entre los grupos es la esencia de la vida social e, incluso, hay quienes piensan que no son las relaciones entre los grupos, sino los conflictos que se producen en ei marco de las relaciones grupaies los que nos dan las claves de la propia dinámica social. En este sentido, no es descabellado pensar que los conflictos grupaies aportan la energía necesaria para que tanto las organizaciones, como la propia sociedad muestren su actividad en...

  20. O papel de coordenador de grupos

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    Andaló Carmen Silvia de Arruda

    2001-01-01

    Full Text Available Os trabalhos com grupos, instrumental valioso nos espaços institucionais, vêm sofrendo um processo de banalização de cunho tecnicista. Este artigo pretende ser uma contribuição à reflexão sobre a coordenação de grupos. Afasta-se dos estudos sobre a personalidade dos coordenadores, propondo seu entendimento como o de mediadores entre o nível vivencial e a compreensão crítica. Isso aponta seu caráter constitutivo nos processos grupais.

  1. Grupos vivenciais sob uma perspectiva junguiana

    OpenAIRE

    Laura Villares de Freitas

    2005-01-01

    Este artigo tece considerações quanto à possibilidade e ao alcance de grupos vivenciais, sob a perspectiva da Psicologia Analítica de Carl G. Jung, em nosso contexto socio-econômico atual. Há uma proposta prática de grupos de construção de máscaras e personagens, e a apresentação e comentários das contribuições de diferentes autores que trazem conceitos junguianos clássicos para a dimensão grupal, consideram de maneira criativa o ritual, do ponto de vista psicológico, e questionam a viabilida...

  2. Antigenic and genetic characterization of rabies virus isolates from Uruguay.

    Science.gov (United States)

    Guarino, Helena; Castilho, Juliana Galera; Souto, Juanita; Oliveira, Rafael de Novaes; Carrieri, Maria Luiza; Kotait, Ivanete

    2013-05-01

    After 25 years without any reported cases of rabies in Uruguay, the northern region of the country experienced an epizootic of bovine paralytic rabies in October 2007. The outbreak affected bovines and equines, and the main source of infection was the bat Desmodus rotundus, the only hematophagous species in the country. From October 2007 to July 2008, 42 bovine, 3 equine and 120 chiropteran samples were submitted to the National Veterinary Diagnostic Laboratory for rabies testing. A total of 12 samples (7 bovine, 2 equine and 3 from D. rotundus) were positive by the fluorescent antibody test, and viruses were isolated by the mouse inoculation test. The objective of this study was to compare the antigenic and genetic characteristics of these isolates and three isolates from insectivorous bats from other regions. Antigenic typing using a panel of eight monoclonal antibodies identified all 12 viruses as variant 3 (AgV3), a variant associated with D. rotundus. Two isolates from insectivorous bats (Tadarida brasiliensis and Molossus sp.) were characterized as antigenic variant 4 (AgV4) while the third, from Myotis sp., could not be characterized using this panel as its reactivity pattern did not match that of any of the known antigenic variants. Partial N-gene sequences (nt 149-1420) of these isolates were aligned with homologous sequences derived from GenBank by the CLUSTAL/W method and used to build a neighbor-joining distance tree with the Kimura 2-parameter model. All 12 isolates were genetically grouped into the D. rotundus cluster as they shared 100% identity. In the phylogenetic analysis, the three isolates from insectivorous bats segregated into three clusters: one related to T. brasiliensis, one to Myotis sp. and the other to Lasiurus sp., although the isolate associated with the latter came from a Molossus sp. specimen. These results indicate that AgV3 was associated with the outbreak of bovine paralytic rabies in Uruguay. This is the first report of rabies

  3. Evolution of oceanic molybdenum and uranium reservoir size around the Ediacaran-Cambrian transition: Evidence from western Zhejiang, South China

    Science.gov (United States)

    Xiang, Lei; Schoepfer, Shane D.; Shen, Shu-zhong; Cao, Chang-qun; Zhang, Hua

    2017-04-01

    The "Cambrian explosion" is one of the most fascinating episodes of diversification in the history of life; however, its relationship to the oxygenation of the oceans and atmosphere around the Ediacaran-Cambrian transition is not fully understood. Marine inventories of redox-sensitive trace elements reflect the relative balance of oxidative weathering on land and deposition in anoxic water masses, and can be used to explore the evolution of oceanic and atmospheric redox conditions. For this study, we conducted a series of geochemical analyses on the upper Lantian, Piyuancun, and Hetang formations in the Chunye-1 well, part of the lower Yangtze Block in western Zhejiang. Iron speciation results indicate that the entire studied interval was deposited under anoxic conditions, with three intervals of persistent euxinia occurring in the uppermost Lantian Fm., the lower Hetang Formation (Fm.), and the upper Hetang Fm. Molybdenum (Mo) and uranium (U) contents and Mo/TOC and U/TOC ratios from the anoxic/euxinic intervals of the Chunye-1 well, combined with published data from the sections in the middle and upper Yangtze Block, suggest that the oceanic Mo reservoir declined consistently from the Ediacaran to Cambrian Stage 3, while the size of the oceanic U reservoir remained relatively constant. Both metals were depleted in the ocean in lower Cambrian Stage 4, before increasing markedly at the end of Stage 4. The lack of an apparent increase in the size of the marine Mo and U reservoir from the upper Ediacaran to Cambrian Stage 3 suggests that oxic water masses did not expand until Cambrian Stage 4. The increase in marine Mo and U availability in the upper Hetang Fm. may have been due to the expansion of oxic water masses in the oceans, associated with oxygenation of the atmosphere during Cambrian Stage 4. This expansion of oxic waters in the global ocean postdates the main phase of Cambrian diversification, suggesting that pervasive oxygenation of the ocean on a large

  4. Freshwater gastropods diversity hotspots: three new species from the Uruguay River (South America

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    Diego E. Gutiérrez Gregoric

    2016-06-01

    Full Text Available Background: The Atlantic Forest is globally one of the priority ecoregions for biodiversity conservation. In Argentina, it is represented by the Paranense Forest, which covers a vast area of Misiones Province between the Paraná and Uruguay rivers. The Uruguay River is a global hotspot of freshwater gastropod diversity, here mainly represented by Tateidae (genus Potamolithus and to a lesser extent Chilinidae. The family Chilinidae (Gastropoda, Hygrophila includes 21 species currently recorded in Argentina, and three species in the Uruguay River. The species of Chilinidae occur in quite different types of habitats, but generally in clean oxygenated water recording variable temperature ranges. Highly oxygenated freshwater environments (waterfalls and rapids are the most vulnerable continental environments. We provide here novel information on three new species of Chilinidae from environments containing waterfalls and rapids in the Uruguay River malacological province of Argentina. Materials and Methods: The specimens were collected in 2010. We analyzed shell, radula, and nervous and reproductive systems, and determined the molecular genetics. The genetic distance was calculated for two mitochondrial markers (cytochrome c oxidase subunit I–COI- and cytochrome b -Cyt b- for these three new species and the species recorded from the Misionerean, Uruguay River and Lower Paraná-Río de la Plata malacological provinces. In addition, the COI data were analyzed phylogenetically by the neighbor-joining and Bayesian inference techniques. Results: The species described here are different in terms of shell, radula and nervous and reproductive systems, mostly based on the sculpture of the penis sheath. Phylogenetic analyses grouped the three new species with those present in the Lower Paraná-Río de la Plata and Uruguay River malacological provinces. Discussion: Phylogenetic analyses confirm the separation between the Uruguay River and the Misionerean

  5. Grupos vivenciais sob uma perspectiva junguiana

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    Laura Villares de Freitas

    2005-09-01

    Full Text Available Este artigo tece considerações quanto à possibilidade e ao alcance de grupos vivenciais, sob a perspectiva da Psicologia Analítica de Carl G. Jung, em nosso contexto socio-econômico atual. Há uma proposta prática de grupos de construção de máscaras e personagens, e a apresentação e comentários das contribuições de diferentes autores que trazem conceitos junguianos clássicos para a dimensão grupal, consideram de maneira criativa o ritual, do ponto de vista psicológico, e questionam a viabilidade de trabalhos grupais. Numa abordagem mitológica, são considerados Górgona, Dioniso, Ártemis, Eco e Narciso, com destaque à deusa grega Héstia, cujas características são relacionadas a aspectos necessariamente presentes nos grupos vivenciais e à possibilidade de ocorrer uma experiência psicológica. Os grupos vivenciais são considerados favorecedores da perspectiva de alteridade, na medida em que cada participante tem neles a oportunidade de se afirmar e de ser confirmado, isto é, de se expressar e de refletir, num campo interacional fértil.

  6. Species of Mycosphaerellaceae and Teratosphaeriaceae on native Myrtaceae in Uruguay: evidence of fungal host jumps.

    Science.gov (United States)

    Pérez, C A; Wingfield, M J; Altier, N; Blanchette, R A

    2013-02-01

    Mycosphaerella species are well-known causal agents of leaf diseases on many economically and ecologically important plant species. In Uruguay, a relatively large number of Mycosphaerellaceae and Teratosphaeriaceae are found on Eucalyptus, but nothing is known of these fungi on native Myrtaceae. The aim of this study was to identify Mycosphaerellaceae and Teratosphaeriaceae species associated with leaf diseases on native Myrtaceae in Uruguay and to consider whether host jumps by the pathogen from introduced Eucalyptus to native Myrtaceae have occurred. Several native forests throughout the country were surveyed with special attention given to those located close to Eucalyptus plantations. Five species belonging to the Mycosphaerellaceae and Teratosphaeriaceae clades were found on native Myrtaceous trees and three of these had previously been reported on Eucalyptus in Uruguay. Those occurring both on Eucalyptus and native Myrtaceae included Pallidocercospora heimii, Pseudocercospora norchiensis, and Teratosphaeria aurantia. In addition, Mycosphaerella yunnanensis, a species known to occur on Eucalyptus but not previously recorded in Uruguay, was found on leaves of two native Myrtaceous hosts. Because most of these species occur on Eucalyptus in countries other than Uruguay, it appears that they were introduced in this country and have adapted to be able to infect native Myrtaceae. These apparent host jumps have the potential to result in serious disease problems and they should be carefully monitored. Copyright © 2012 The British Mycological Society. Published by Elsevier Ltd. All rights reserved.

  7. La contribución de los inmigrantes en Uruguay

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    Felipe Arocena

    2014-09-01

    Full Text Available Este es un estudio comparativo acerca de cómo nueve comunidades inmigrantes y los afrodescendientes fueron conformando la cultura de Uruguay, un pequeño país en América del Sur. La imagen más común de este país, tanto a nivel nacional como internacional, es la de una sociedad homogénea y europeizada, construida sobre la base de inmigrantes provenientes de España e Italia, con una escasa población afro y sin nativos. Este panorama es cierto sólo a medias ya que también han sido fundamentales las contribuciones de inmigrantes provenientes de Asia, Rusia, otros países europeos y de esclavos africanos y sus descendientes libres. En particular analizaré cómo las personas de ascendencia africana, vascos, italianos, suizos, rusos, armenios, libaneses, judíos, musulmanes y peruanos, han contribuido en la construcción de la nación uruguaya. Este artículo presenta las conclusiones más relevantes de una investigación basada en casi un centenar de entrevistas en profundidad con integrantes de estas comunidades.

  8. La contribución de los inmigrantes en Uruguay

    Directory of Open Access Journals (Sweden)

    Felipe Arocena

    2009-01-01

    Full Text Available Este es un estudio comparativo acerca de cómo nueve comunidades inmigrantes y los afrodescendientes fueron conformando la cultura de Uruguay, un pequeño país en América del Sur. La imagen más común de este país, tanto a nivel nacional como internacional, es la de una sociedad homogénea y europeizada, construida sobre la base de inmigrantes provenientes de España e Italia, con una escasa población afro y sin nativos. Este panorama es cierto sólo a medias ya que también han sido fundamentales las contribuciones de inmigrantes provenientes de Asia, Rusia, otros países europeos y de esclavos africanos y sus descendientes libres. En particular analizaré cómo las personas de ascendencia africana, vascos, italianos, suizos, rusos, armenios, libaneses, judíos, musulmanes y peruanos, han contribuido en la construcción de la nación uruguaya. Este artículo presenta las conclusiones más relevantes de una investigación basada en casi un centenar de entrevistas en profundidad con integrantes de estas comunidades.

  9. Detection of pesticides in active and depopulated beehives in Uruguay.

    Science.gov (United States)

    Pareja, Lucía; Colazzo, Marcos; Pérez-Parada, Andrés; Niell, Silvina; Carrasco-Letelier, Leonidas; Besil, Natalia; Cesio, María Verónica; Heinzen, Horacio

    2011-10-01

    The influence of insecticides commonly used for agricultural purposes on beehive depopulation in Uruguay was investigated. Honeycombs, bees, honey and propolis from depopulated hives were analyzed for pesticide residues, whereas from active beehives only honey and propolis were evaluated. A total of 37 samples were analyzed, representing 14,800 beehives. In depopulated beehives only imidacloprid and fipronil were detected and in active beehives endosulfan, coumaphos, cypermethrin, ethion and chlorpyrifos were found. Coumaphos was present in the highest concentrations, around 1,000 μg/kg, in all the propolis samples from active beehives. Regarding depopulated beehives, the mean levels of imidacloprid found in honeycomb (377 μg/kg, Standard Deviation: 118) and propolis (60 μg/kg, Standard Deviation: 57) are higher than those described to produce bee disorientation and fipronil levels detected in bees (150 and 170 μg/kg) are toxic per se. The other insecticides found can affect the global fitness of the bees causing weakness and a decrease in their overall productivity. These preliminary results suggest that bees exposed to pesticides or its residues can lead them in different ways to the beehive.

  10. Detection of Pesticides in Active and Depopulated Beehives in Uruguay

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    Horacio Heinzen

    2011-09-01

    Full Text Available The influence of insecticides commonly used for agricultural purposes on beehive depopulation in Uruguay was investigated. Honeycombs, bees, honey and propolis from depopulated hives were analyzed for pesticide residues, whereas from active beehives only honey and propolis were evaluated. A total of 37 samples were analyzed, representing 14,800 beehives. In depopulated beehives only imidacloprid and fipronil were detected and in active beehives endosulfan, coumaphos, cypermethrin, ethion and chlorpyrifos were found. Coumaphos was present in the highest concentrations, around 1,000 µg/kg, in all the propolis samples from active beehives. Regarding depopulated beehives, the mean levels of imidacloprid found in honeycomb (377 µg/kg, Standard Deviation: 118 and propolis (60 µg/kg, Standard Deviation: 57 are higher than those described to produce bee disorientation and fipronil levels detected in bees (150 and 170 µg/kg are toxic per se. The other insecticides found can affect the global fitness of the bees causing weakness and a decrease in their overall productivity. These preliminary results suggest that bees exposed to pesticides or its residues can lead them in different ways to the beehive.

  11. Cannabis consumption patterns among frequent consumers in Uruguay.

    Science.gov (United States)

    Boidi, María Fernanda; Queirolo, Rosario; Cruz, José Miguel

    2016-08-01

    In 2013, Uruguay became the first country to fully regulate the cannabis market, which now operates under state control. Cannabis can be legally acquired in three ways: growing it for personal use (self-cultivation), cannabis club membership, and from pharmacies (not yet implemented). Users must be entered into a confidential official registry to gain access. This article presents findings of a Respondent Driven Sample survey of 294 high-frequency cannabis consumers in the Montevideo metropolitan area. Frequent consumers resort to more than one method for acquiring cannabis, with illegal means still predominating after 1 year of the new regulation law. Cannabis users overwhelmingly support the current regulation, but many of them are reluctant to register. Some of the attitudes and behaviors of the high-frequency consumers pose a challenge to the success of the cannabis law. Individuals relying on more than one method of access defy the single access clause, a prerequisite for legal use, while the maximum amount of cannabis individuals can access monthly seems too high even for most frequent consumers, which might promote the emergence of a grey market. Reluctance to register among a significant proportion of high-frequency consumers raises doubts about the law's ability to achieve its stated objectives. Copyright © 2016 Elsevier B.V. All rights reserved.

  12. Evolution in the use of antidumping mechanism after Uruguay round

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    Vinícius de Azevedo Couto Firme

    2015-09-01

    Full Text Available This paper analyzed how the main economies have used the antidumping measures (AD after the Uruguay round, between 1995 and 2012. Therefore, some techniques were employed in order to reveal the main AD users and the trend, of using this instrument, associated to each one of them. We also tested the hypothesis that countries could converge in terms of the number of AD cases and if spatial effects could be involved in this process. Finally, a criterion was established and a model was estimated in order to identify countries that usually favor the most competitive sectors through AD practice. The results revealed that Brazil was the only heavy AD user that was counter to the general downward trend verified on the AD cases. Meanwhile, China was not only the main target of this mechanism but the cases against this country showed a growth trend also. Furthermore, we found that the number of AD cases opened by traditional and nontraditional users is converging. Finally, both the index and the estimated model have indicated that Turkey and the EU seem to be favoring the most competitive industries through the AD practice.

  13. The Treatment of the Textile Sector in the Uruguay Round

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    Claudia Jiménez

    1995-07-01

    Full Text Available The reintegration of the textile sector into the general regulatory framework of trade, which had previously been governed by an agreement aside from and against GATT directives, was one of the objectives put forward in the Uruguay Round. This was a priority issue for some states which, for more than twenty years, had been putting up with restrictions imposed on their exports by the developed countries under the pretext of carrying out an ordered and progressive liberalization in order not to provoke market distortions that could result from a sudden invasion from abroad and the lackof competitiveness of national products.This article intends to examine the mechanism finally adopted in order to carry out this process of reintegration which, in theory at least, should culminate in the year 2005 as well as the problems presented during the negotiations. Special emphasis is laid on the balance of the Community posture in relation to the results obtained from its position given the special impact that this has for Spanish interests.

  14. Evaluation Criteria for Participatory Research: Insights from Coastal Uruguay

    Science.gov (United States)

    Trimble, Micaela; Lázaro, Marila

    2014-07-01

    Participatory research in which experts and non-experts are co-researchers in addressing local concerns (also known as participatory action research or community-based research) can be a valuable approach for dealing with the uncertainty of social-ecological systems because it fosters learning among stakeholders and co-production of knowledge. Despite its increased application in the context of natural resources and environmental management, evaluation of participatory research has received little attention. The objectives of this research were to define criteria to evaluate participatory research processes and outcomes, from the literature on participation evaluation, and to apply them in a case study in an artisanal fishery in coastal Uruguay. Process evaluation criteria (e.g., problem to be addressed of key interest to local and additional stakeholders; involvement of interested stakeholder groups in every research stage; collective decision making through deliberation; and adaptability through iterative cycles) should be considered as conditions to promote empowering participatory research. Our research contributes to knowledge on evaluation of participatory research, while also providing evidence of the positive outcomes of this approach, such as co-production of knowledge, learning, strengthened social networks, and conflict resolution.

  15. Tierras estatales y desigualdad de género en Uruguay=State lands and gender inequality in Uruguay

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    Paula Florit O`Neill

    2017-06-01

    Full Text Available Resumen En Uruguay, el Instituto Nacional de Colonización (INC es la institución encargada de la adjudicación de tierra por parte del Estado, orientado a la distribución racional de la tierra y su acceso por parte de la población rural más vulnerable. A partir del año 2005, atravesó una reforma que jerarquizó su rol en las políticas de Estado y gestó un nuevo modelo de adjudicación de tierras: las experiencias asociativas. Ese mismo año, el nuevo gobierno impulsó la transversalización de género en el Estado, impulso que anclara en el INC a partir del 2013. Este artículo analiza desde una perspectiva de género la reforma refundacional y la nueva política de tierras, develando la ceguera de género de la reforma y evidenciando desafíos pendientes para la transversalización de género en el diseño de la principal modalidad de adjudicación de tierras públicas.      Abstract In Uruguay, the National Institute of Colonization is the institution resposible for the adjudication of land by the State, aimed at the rational distribution of land and its access by the most vulnerable rural population. Since 2005, the INC went through a reform that prioritized its role in the policies of the State and created a new model of land adjudication: associative experiences of colonization. In that same year, the new government promoted gender mainstreaming in the State, impulse that took roots in the INC from 2013 onwards. This article analyzes from a gender perspective the refounding reform and the new land policy, unveiling the gender blindness of the reform and highlighting pending challenges for gender mainstreaming in the design of the main public land adjudication modality.

  16. Cambrian rivers and floodplains: the significance of microbial cementation, groundwater and aeolian sediment transport

    Science.gov (United States)

    Reesink, A. J. H.; Best, J.; Freiburg, J. T.; Nathan, W.

    2016-12-01

    Rivers that existed before land plants colonized the Earth are commonly considered to be unaffected by microbial activity on their floodplains, because the limited cementation produced by microbial activity is insufficient to stabilize the river banks. Although this assumption is likely correct, such emphasis on channel dynamics ignores the potential role of floodplain dynamics as an integral component of the river system. Detailed analysis of cores from the Cambrian Mount Simon Sandstone, Illinois, suggests that a significant proportion of the terrestrial sequence is composed of flat-bedded `crinkly' structures that provide evidence of cementation by soil crusts and microbial biofilms, and that promoted the adhesion of sediment to sticky surfaces. Wind ripples and local desert pavements were abundant. These findings highlight that sediment deposition on Cambrian floodplains was often dominated by wind in locations where the ground water table reached the surface, and was thus likely independent of sediment transport within the river channel. Erosion by wind would thus have been hindered by surface cementation and the formation of desert pavements. Such ground water control on deposition, and resistance to erosion by floodplain surface hardening, appear to have been the primary controls on Cambrian floodplain topography. Because floodplain topography poses a key control on channel and floodplain flow, these processes may have affected patterns of erosion and deposition, as well as reach-scale dynamics such as channel avulsions. The autonomous operation of wind-and-groundwater controlled floodplains makes pre-vegetated river systems more sensitive to climatic conditions such as precipitation and evaporation, and strikingly different from those that occurred after the development of land plants.

  17. New data on the Lower Cambrian trilobites of Cortijos de Malagon (Spain

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    Jago, J. B.

    1989-04-01

    Full Text Available A Small trilobite fauna from the late Lower Cambrian Sanstones from Los Cortijos de Malagon of Southem Spain is described herein. This fauna ineludes the following taxa: Realaspis (? sp.; Kingaspis (? sp.; cf. Latoucheia sp. and Lusatiops afI. ribotanusd, Richter and Richter, 1948.En este trabajo se describe la fauna de trilobites del Cámbrico inferior de las areniscas de los Cortijos de Malagón en el SE español. Comprende Realaspis (? sp., Kingaspis (? sp.; cf. Latoucheia sp. y Lusatiops afI. ribotanus. Richter y Richter, 1948.

  18. THE FIRST RECORD OF CAMBRIAN CONODONTS FROM THE HUQF-HAUSHI OUTCROPS, OMAN, ARABIAN PENINSULA

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    GABRIELLA BAGNOLI

    2016-05-01

    Full Text Available Outcrops of Cambrian sediments of the uppermost Miqrat Formation, the Al Bashair Formation and the basal Barik Formation were sampled for conodont and palynomorph studies. The units are part of the Palaeozoic Haima Supergroup, exposed in the Huqf-Haushi area in central eastern Oman, Arabian Peninsula. Palynomorphs were absent but conodont samples yielded a small conodont fauna. The presence of Muellerodus? erectus allows the recognition of the Muellerodus? erectus Zone established for North China (late Paibian – early Jiangshanian, in accordance with previous reports on the trilobite fauna from the same interval.

  19. Cambrian Evolutionary Radiation: Context, correlation, and chronostratigraphy—Overcoming deficiencies of the first appearance datum (FAD) concept

    Science.gov (United States)

    Landing, Ed; Geyer, Gerd; Brasier, Martin D.; Bowring, Samuel A.

    2013-08-01

    Use of the first appearance datum (FAD) of a fossil to define a global chronostratigraphic unit's base can lead to intractable correlation and stability problems. FADs are diachronous—they reflect species' evolutionary history, dispersal, biofacies, preservation, collection, and taxonomy. The Cambrian Evolutionary Radiation is characterised by diachronous FADs, biofacies controls, and provincialism of taxa and ecological communities that confound a stable Lower Cambrian chronostratigraphy. Cambrian series and stage definitions require greater attention to assemblage zone successions and non-biostratigraphic, particularly carbon isotope, correlation techniques such as those that define the Ediacaran System base. A redefined, basal Cambrian Trichophycus pedum Assemblage Zone lies above the highest Ediacaran-type biotas (vendobionts, putative metazoans, and calcareous problematica such as Cloudina) and the basal Asteridium tornatum-Comasphaeridium velvetum Zone (acritarchs). This definition and the likely close correspondence of evolutionary origin and local FAD of T. pedum preserves the Fortune Head, Newfoundland, GSSP of the Cambrian base and allows the presence of sub-Cambrian, branched ichnofossils. The sub-Tommotian-equivalent base of Stage 2 (a suggested "Laolinian Stage") should be defined by the I'/L4/ZHUCE δ13C positive peak, bracketed by the lower ranges of Watsonella crosbyi and Aldanella attleborensis (molluscs) and the Skiagia ornata-Fimbrioglomerella membranacea Zone (acritarchs). The W. crosbyi and A. attleborensis FADs cannot define a Stage 2 base as they are diachronous even in the Newfoundland "type" W. crosbyi Zone. The Series 2 base cannot be based on a species' FAD owing to the provincialism of skeletalised metazoans in the Terreneuvian-Series 2 boundary interval and global heterochrony of the oldest trilobites. A Series 2 and Stage 3 (a suggested "Lenaldanian Series" and "Zhurinskyan Stage," new) GSSP base is proposed at the Siberian lower

  20. Pesticide survey in water and suspended solids from the Uruguay River Basin, Argentina.

    Science.gov (United States)

    Williman, Celia; Munitz, Martín S; Montti, María I T; Medina, María B; Navarro, Agustín F; Ronco, Alicia E

    2017-06-01

    The Uruguay River is receptor of pollutants, such as pesticides, from agriculture activities along its course. The present study reports concentration levels of organochlorinate, organophosphorus, and other pesticides in water and suspended solids in nine sampling sites of the Uruguay River. Data analyses included principal component analysis (PCA) to assess differences between sampling sites contamination. Most of the tested pesticides were ubiquitous due to the widely use in the chemical control of pests implemented in the region. Detected concentrations of aldrin, chlordane, dieldrin, endrin, heptachlor epoxide, lindane, 4,4'-DDT, endosulfan, chlorpyrifos, diazinon, methyl-parathion, and malathion were found to be over regional and international concentration level guidelines, according to the European Union, the US Environmental Protection Agency, or the Argentinean Secretariat of Environment and Sustainable Development. For this reason, future studies in Uruguay River Basin are needed.

  1. A Chilling Example? Uruguay, Philip Morris International, and WHO's Framework Convention on Tobacco Control.

    Science.gov (United States)

    Russell, Andrew; Wainwright, Megan; Mamudu, Hadii

    2015-06-01

    The World Health Organization's Framework Convention on Tobacco Control (FCTC) is the first international public health treaty to address the global spread of tobacco products. Ethnographic research at the fourth meeting of the FCTC's Conference of the Parties in Uruguay highlights the role of the FCTC in recalibrating the relationship between international trade and investment agreements and those of global public health. Specifically, we chart the origins and development of the Punta del Este Declaration, tabled by Uruguay at the conference, to counter a legal request by Philip Morris International, the world's largest tobacco transnational, for arbitration by the International Centre for the Settlement of Investment Disputes over Uruguay's alleged violations of several international trade and investment treaties. We argue that medical anthropologists should give greater consideration to global health governance and diplomacy as a potential counterweight to the 'politics of resignation' associated with corporate capitalism. © 2014 by the American Anthropological Association.

  2. Geographic distribution and conservation status of Caiman latirostris (Crocodylia, Alligatoridae in Uruguay

    Directory of Open Access Journals (Sweden)

    Claudio Borteiro

    2006-12-01

    Full Text Available Populations of Caiman latirostris are known to occur in Uruguay but their geographic distribution remains uncertain. This work presents anupdate of the species distribution and conservation status in Uruguay. Surveys conducted by the authors confirmed the presence of this species in the previously known distribution range of northwestern Uruguay, where it seems to be widespread and relatively abundant in contrast to earlier reports. We report new localities for C. latirostris, most relevant being those of the Cebollatí and Tacuarí Rivers, and the Pelotas, India Muerta and San Miguel stream basins, which significantly expand its distribution through important wetlands in the eastern part of the country. The overall distribution is coincident with different landscape types, where lagoons, artificial impoundments, livestock waterholes, rivers, streams, creeks and marshes are inhabited by caiman. Illegal non-commercial hunting was detected all over the country.

  3. Mecanismos de determinación del salario en la actividad privada en Uruguay

    OpenAIRE

    Héctor Babace; Rodolfo Becerra

    2014-01-01

    I. Introducción. II. Reseña histórica de los sistemas de reglamentación y de determinación del salario en Uruguay. III. Descripción y análisis del actual sistema de determinación de salarios en la actividad privada en Uruguay. Análisis de la ley Nº 18.566 sobre negociación colectiva. 1. La negociación colectiva y la determinación de salarios. a. Características del sistema de relaciones laborales de Uruguay. b. Procedimientos para el establecimiento de condiciones de trabajo y para la determi...

  4. 40Ar/39Ar dating of exceptional concentration of metals by weathering of Precambrian rocks at the Precambrian–Cambrian boundary

    DEFF Research Database (Denmark)

    Parnell, John; Mark, Darren F.; Frei, Robert

    2014-01-01

    The sub-Cambrian surface, including diverse metalliferous deposits, shows evidence of intense weathering of Precambrian rocks to form supergene-enriched ores and metalliferous placers, followed by widespread peneplanation. Much of the metal would have been flushed to the Cambrian ocean during pen...... with mobilization on land of redox sensitive metals by oxidative terrestrial weathering. This unprecedented flushing of metals from the weathered Precambrian surface would have contributed to the chemistry of the earliest Cambrian ocean at a time of marked faunal evolution.......The sub-Cambrian surface, including diverse metalliferous deposits, shows evidence of intense weathering of Precambrian rocks to form supergene-enriched ores and metalliferous placers, followed by widespread peneplanation. Much of the metal would have been flushed to the Cambrian ocean during...

  5. Burnout en Uruguay: Unos aportes para los resultados de Añon et al. (2012.

    Directory of Open Access Journals (Sweden)

    Cesar Merino Soto

    2013-05-01

    Full Text Available La presente carta pone de relieve algunas preguntas que podrían desafiar la validez de los resultados presentados por Añón et al. (2012, respecto a sus descripciones del nivel de burnout en un hospital público de Montevideo. Su estudio es importante para el aporte descriptivo local del burnout en trabajadores en Uruguay, y de la prevalencia del mismo en un plano internacional. Aparentemente, es uno de los pocos estudios publicados sobre el síndrome de burnout en Uruguay. Pero hay aspectos relacionados con la validez de las interpretaciones de sus resultados, que no han tomado en cuenta.

  6. Brachiopods hitching a ride: an early case of commensalism in the middle Cambrian Burgess Shale

    Science.gov (United States)

    Topper, Timothy P.; Holmer, Lars E.; Caron, Jean-Bernard

    2014-10-01

    Ecological interactions, including symbiotic associations such as mutualism, parasitism and commensalism are crucial factors in generating evolutionary novelties and strategies. Direct examples of species interactions in the fossil record generally involve organisms attached to sessile organisms in an epibiont or macroboring relationship. Here we provide support for an intimate ecological association between a calcareous brachiopod (Nisusia) and the stem group mollusc Wiwaxia from the Burgess Shale. Brachiopod specimens are fixed to Wiwaxia scleritomes, the latter showing no signs of decay and disarticulation, suggesting a live association. We interpret this association as the oldest unambiguous example of a facultative ectosymbiosis between a sessile organism and a mobile benthic animal in the fossil record. The potential evolutionary advantage of this association is discussed, brachiopods benefiting from ease of attachment, increased food supply, avoidance of turbid benthic conditions, biofoul and possible protection from predators, suggesting commensalism (benefiting the symbiont with no impact for the host). While Cambrian brachiopods are relatively common epibionts, in particular on sponges, the association of Nisusia with the motile Wiwaxia is rare for a brachiopod species, fossil or living, and suggests that symbiotic associations were already well established and diversified by the ``middle'' (Series 3, Stage 5) Cambrian.

  7. Geochemistry of Sulfur and Sulfur Compounds of the Cambrian Kuonamka Complex (Eastern Siberian Platform

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    T.M. Parfenova

    2017-03-01

    Full Text Available New results of research of sulfur from rocks and organic matter (OM for the Kuonamka complex of the Lower and Middle Cambrian in the eastern Siberian platform have been demonstrated. It has been shown that in the rocks enriched in organic matter the amount of organic carbon controls not only the total content of sulfur and sulfide sulfur, but also the content of sulphate sulfur. It has been revealed that the sulfur content in bitumen extracts of Cambrian black shales in the northeastern Siberian platform decreases with increasing carbon and hydrogen. It was hypothesized that during diagenesis the introduction of sulfur in the OM structure led to dehydrogenation and decarboxylation. The intensity of these processes is associated neither with the mineral composition of the sediment nor with its enrichment in OM. The paper discusses the structure and patterns of distribution of OM sulfur compounds in the rocks of the Kuonamka complex in the sections of the northern and southeastern Siberian platform.

  8. The proterozoic and earliest cambrian trace fossil record; patterns, problems and perspectives.

    Science.gov (United States)

    Jensen, Sören

    2003-02-01

    The increase in trace fossil diversity across the Neoproterozoic-Cambrian boundary often is presented in terms of tabulations of ichnogenera. However, a clearer picture of the increase in diversity and complexity can be reached by combining trace fossils into broad groups defined both on morphology and interpretation. This also focuses attention on looking for similarites between Neoproterozoic and Cambrian trace fossils. Siliciclastic sediments of the Neoproterozoic preserve elongate tubular organisms and structures of probable algal origin, many of which are very similar to trace fossils. Such enigmatic structures include Palaeopascichnus and Yelovichnus, previously thought to be trace fossils in the form of tight meanders.A preliminary two or tripartite terminal Neoproterozoic trace fossil zonation can be be recognized. Possibly the earliest trace fossils are short unbranched forms, probably younger than about 560 Ma. Typical Neoproterozoic trace fossils are unbranched and essentially horizontal forms found associated with diverse assemblages of Ediacaran organisms. In sections younger than about 550 Ma a modest increase in trace fossil diversity occurs, including the appearance of rare three-dimensional burrow systems (treptichnids), and traces with a three-lobed lower surfaces.

  9. Calcified microbes in Neoproterozoic carbonates: implications for our understanding of the Proterozoic/Cambrian transition

    Science.gov (United States)

    Knoll, A. H.; Fairchild, I. J.; Swett, K.

    1993-01-01

    Tidal flat and lagoonal dolostones of the Neoproterozoic Draken Formation, Spitsbergen, exhibit excellent preservation of carbonate fabrics, including heavily calcified microfossils. The crust-forming cyanobacterium Polybessurus is preserved locally by carbonate precipitated on and within sheaths in mildly evaporitic upper intertidal to supratidal environments. In contrast, calcified filaments in columnar stromatolites reflect subtidal precipitation. Filament molds in dolomicrites independently document extremely early lithification. The presence of heavily calcified cyanobacteria in Draken and other Proterozoic carbonates constrains potential explanations for the widespread appearance of calcified microorganisms near the Proterozoic-Cambrian boundary. We propose that the rarity of Proterozoic examples principally reflects the abundance and wide distribution of carbonate crystals precipitated on the sea floor or in the water column. Cyanobacterial sheaths would have competed effectively as sites for carbonate nucleation and growth only where calcitic and/or aragonitic nuclei were absent. In this view, the Proterozoic-Cambrian expansion of calcified microfossils primarily reflects the emergence of skeletons as principal agents of carbonate deposition.

  10. Early Cambrian wave-formed shoreline deposits: the Hardeberga Formation, Bornholm, Denmark

    Science.gov (United States)

    Clemmensen, Lars B.; Glad, Aslaug C.; Pedersen, Gunver K.

    2017-09-01

    During the early Cambrian, the Danish island Bornholm was situated on the northern edge of the continent Baltica with palaeolatitudes of about 35°S. An early Cambrian (Terreneuvian) transgression inundated large areas of Baltica including Bornholm creating shallow marine and coastline environments. During this period, wave-formed shoreline sediments (the Vik Member, Hardeberga Formation) were deposited on Bornholm and are presently exposed at Strøby quarry. The sediments consist of fine- and medium-grained quartz-cemented arenites in association with a few silt-rich mudstones. The presence of well-preserved subaqueous dunes and wave ripples indicates deposition in a wave-dominated upper shoreface (littoral zone) environment, and the presence of interference ripples indicates that the littoral zone environment experienced water level fluctuations due to tides and/or changing meteorological conditions. Discoidal structures (medusoids) are present in the quarry, but due to the relative poor preservation of their fine-scale structures it is difficult to determine if the discoids represent true medusae imprints or inorganic structures. The preservation of the shallow-water bedforms as well as the possible medusae imprints is related to either the formation of thin mud layers, formed during a period of calm water when winds blew offshore for a longer period, or to the growth of bacterial mats. The orientation of the wave-formed bedforms indicates a local palaeoshoreline trending NE-SW and facing a large ocean to the north.

  11. Biofacies and faunal dynamics through the Sirius Passet Lagerstätte (lower Cambrian)

    Science.gov (United States)

    Harper, D. A. T.; Hammarlund, E.; Hansen, J. W.; Nielsen, A. T.; Rasmussen, J. A.; Smith, M. P.; Stein, M.; Vinther, J.

    2012-04-01

    Sirius Passet is one of the three key Cambrian Lagerstätte located in Nansen Land on the northern edge of Greenland. Field counts and identifications of thousands of in situ fossils through almost 13 m of exposed strata within the Transitional Buen Formation (lower Cambrian) at the classic locality southwest of the Sirius Pass, have precisely delimited the context and extent of the Lagerstätte horizons and charted in outline faunal dynamics through the section. To date some 45 species, including about ten new taxa have been related to substrate type, geochemical proxies and the presence of microbial mats and trace fossils. Although the succession is characterized numerically by the abundant trilobite Buenellus and the bivalved Isoxys together with a variety of sponges, multivariate analysis of abundance data, displayed as spindle diagrams, through the middle part of the succession maps out a range of biofacies characterized by varying proportions of annelids, arthropods and lobopods. There is a marked correlation between the occurrence of large soft-bodied arthropods, microbial mats together with sub and under-mat miners. These analyses and observations together confirm the deep-water setting of the Sirius Passet faunas, predominantly composed of near autochthonous faunas with some allochthonous elements, transgressing an older carbonate platform.

  12. Occurrence of metal ions in rice produced in Uruguay

    Directory of Open Access Journals (Sweden)

    Mario Rivero

    2011-04-01

    Full Text Available The United Nations General Assembly declared the year 2004 the International Year of Rice under the concept "Rice is Life". The largest nutritional problems occurring globally are protein-energy malnutrition, Ca, Fe, I, Zn and vitamin A deficiencies. Being rice the staple food more consumed worldwide, outstanding care is taken on its composition levels.Uruguay has emerged as medium-size rice producer and Latin America's major rice exporter, and is now amongst the world's top ten. Thus, the knowledge of toxic as well as micronutrient elements is very important. Here is reported the determination in forty nine samples of rice (Oryza sativa L. of As, Cd, Cr, and Pb by ET AAS in samples digested by dry ashing, and Ca, Co, Cu, Fe, K, Mg, Mo, Mn, Na, Ni and Zn by FAAS and Hg by CV AAS using microwave-assisted decomposition.The amount of all the metal ions studied in this work fall within the range typical of rice around the world. All the rice samples tested showed lower levels of As, Cd, Hg and Pb than the maximum limit permitted by governmental and international organizations.Potassium was the most abundant mineral followed by Mg and Ca and amongst microelements the presence of Cu, Fe, Mo, Mn, Na and Zn was outstanding.The milling process highly affects the contents of K, Mg, Mn, Na and Zn while little influence has on Ca, Co, Cu and Fe concentrations.Unexpected loss of Ca, Fe and Mn during parboiling process was detected. 

  13. A perfect storm? Welfare, care, gender and generations in Uruguay.

    Science.gov (United States)

    Filgueira, Fernando; Gutiérrez, Magdalena; Papadópulos, Jorge

    2011-01-01

    This article claims that welfare states modelled on a contributory basis and with a system of entitlements that assumes stable two-parent families, a traditional breadwinner model, full formal employment and a relatively young age structure are profoundly flawed in the context of present-day challenges. While this is true for affluent countries modelled on the Bismarckian type of welfare system, the costs of the status quo are even more devastating in middle-income economies with high levels of inequality. A gendered approach to welfare reform that introduces the political economy and the economy of care and unpaid work is becoming critical to confront what may very well become a perfect storm for the welfare of these nations and their peoples. Through an in-depth study of the Uruguayan case, the authors show how the decoupling of risk and protection has torn asunder the efficacy of welfare devices in the country. An ageing society that has seen a radical transformation of its family and labour market landscapes, Uruguay maintained during the 1980s and 1990s a welfare state that was essentially contributory, elderly and male-oriented, and centred on cash entitlements. This contributed to the infantilization of poverty, increased the vulnerability of women and exacerbated fiscal stress for the system as a whole. Furthermore, because of high levels of income and asset inequality, the redistribution of risk between upper- and lower-income groups presented a deeply regressive pattern. The political economy of care and welfare has begun to change in the last decade or so, bringing about mild reforms in the right direction; but these might prove to be too little and too late.

  14. Household demand elasticities for meat products in Uruguay

    Directory of Open Access Journals (Sweden)

    Bruno A. Lanfranco

    2014-01-01

    Full Text Available This article analyzed the demand for meats at household level over the past decade in Uruguay, a country that exhibits a very high per capita consumption of these products. In particular, the consumption of beef is one of the highest in the world and only comparable to Argentina. The analysis involved a two-step estimation of an incomplete system of censored demand equations using household data from the last available national income and expenditure survey (2005/06. Thirteen meat products were included in the analysis: six broad beef products (deboned hindquarter cuts, bone-in hindquarter cuts, ground beef, rib plate, bone-in forequarter cuts, and other beef cuts, four products from other meats (sheep, pork, poultry, and fish, and three generic mixed-meat products. A complete set of short-term income, own-price and cross-price elasticities were computed and reported along with their 90% confidence intervals (CI. The results were consistent with both economic theory and empirical evidence as well as with the expected behavior, considering the relevance of these products, particularly beef, in the diet of Uruguayan consumers. All meat items were necessary goods and evidenced income-inelastic responses, which was expected given their high consumption level. All meats behaved as normal goods although exhibiting different reactions to changes in price. In general, beef cuts were more price elastic than other more broadly defined products. The more specific and disaggregated the meat product the higher its corresponding direct price elasticity. The complement/substitute relationships found in this study were highly depended on the specific product combinations.

  15. Household demand elasticities for meat products in Uruguay

    Energy Technology Data Exchange (ETDEWEB)

    Lanfranco, B. A.; Rava, C.

    2014-06-01

    This article analyzed the demand for meats at household level over the past decade in Uruguay, a country that exhibits a very high per capita consumption of these products. In particular, the consumption of beef is one of the highest in the world and only comparable to Argentina. The analysis involved a two-step estimation of an incomplete system of censored demand equations using household data from the last available national income and expenditure survey (2005/06). Thirteen meat products were included in the analysis: six broad beef products (de boned hindquarter cuts, bone-in hindquarter cuts, ground beef, rib plate, bone-in forequarter cuts, and other beef cuts), four products from other meats (sheep, pork, poultry, and fish), and three generic mixed-meat products. A complete set of short-term income, own-price and cross-price elasticities were computed and reported along with their 90% confidence intervals (CI). The results were consistent with both economic theory and empirical evidence as well as with the expected behavior, considering the relevance of these products, particularly beef, in the diet of Uruguayan consumers. All meat items were necessary goods and evidenced income-inelastic responses, which was expected given their high consumption level. All meats behaved as normal goods although exhibiting different reactions to changes in price. In general, beef cuts were more price elastic than other more broadly defined products. The more specific and dis aggregated the meat product the higher its corresponding direct price elasticity. The complement/substitute relationships found in this study were highly depended on the specific product combinations. (Author)

  16. Acerca de la "Cultura Física" en la revista Uruguay-Sport: Archivos de la CNEF, Uruguay (1918-1926

    Directory of Open Access Journals (Sweden)

    Paola Dogliotti

    2014-09-01

    Full Text Available Este artículo se propone una indagación sobre lo que implicó la noción de "cultura física" en el proceso gestacional de la Comisión Nacional de Educación Física (CNEF del Uruguay, en las primeras dos décadas de su creación. Para esto se toma como fuente de indagación la revista oficial de esta institución, Uruguay-Sport. Entre los principales hallazgos se constata la fuerte incidencia de Estados Unidos en el proceso de conformación de la CNEF. La "cultura física" es entendida prioritariamente como sport. Se producen ciertos procesos de homogeneización deportiva a partir de modelos importados fundamentalmente de aquel país. Se presenta un cierto grado de lo que se puede llamar un optimismo deportivo.

  17. Algunos aspectos de la climatología solar del Uruguay Some aspects of the solar climatology of Uruguay

    Directory of Open Access Journals (Sweden)

    Hugo Grossi Gallegos

    2010-12-01

    Full Text Available La cobertura espacial de las redes de medición en tierra no puede satisfacer todas las necesidades de los usuarios debido a su baja densidad esto es más notable en el caso de la radiación solar. La escasez de datos de irradiación global es la razón para utilizar la heliofanía para su estimación mediante el empleo de diferentes correlaciones que han probado tener un buen ajuste con las mediciones. Para trazar cartas de heliofanía (y a partir de ellas, de irradiación solar global en un territorio tan extenso como América del Sur es necesario estudiar la relación error-distancia entre estaciones en zonas homogéneas. Para ello, lo habitual es analizar el comportamiento espacial de algunos estadísticos de campos aleatorios, como por ejemplo, la función estructura. En este trabajo, se han utilizado datos medios mensuales de heliofanía de Uruguay y se analizó su variación con la distancia entre estaciones. Se presentan gráficos obtenidos para diferentes épocas del año, analizándose las condiciones de extrapolación espacial de la información. Además, se muestran los resultados del análisis estadístico de series temporales de valores medios anuales de la heliofanía diaria mediante la aplicación del test de Mann-Kendall. Finalmente, se presentan 12 cartas con la distribución espacial de la media mensual de la heliofanía diaria.The spatial coverage of land measurement networks cannot fulfill all the user's needs because their density is low; and this fact becomes more important in the case of solar radiation. The scarcity of global irradiation data is the reason for using sunshine hours in order to estimate them through different correlations which have shown a good fit with the measurements data. In order to draw charts with the spatial distribution of the sunshine-hours monthly averages (and from them, global solar radiation charts also on such a vast territory as South America, it is necessary to study the error

  18. Conservation status assessment of the amphibians and reptiles of Uruguay Evaluación del estado de conservación de los anfibios y reptiles del Uruguay

    Directory of Open Access Journals (Sweden)

    Andrés Canavero

    Full Text Available The native species of amphibians and reptiles of Uruguay were categorized according to the IUCN Red List criteria. Out of 47 amphibian species, seven are listed as Critically Endangered (CR, five as Endangered (EN, one as Vulnerable (VU, three as Near Threatened (NT, and two as Data Deficient (DD; the remaining species are considered to be Least Concern (LC. Among the 64 species of reptiles evaluated, one is listed as Critically Endangered (CR, seven as Endangered (EN, two as Vulnerable (VU, one as Near Threatened (NT and seven as Data Deficient (DD; the rest are considered to be Least Concern (LC. The use of these results as an additional criterion in the definition of protected areas in Uruguay will contribute towards the conservation of the aforementioned threatened species and their associated ecosystems.Las especies nativas de anfibios y reptiles de Uruguay fueron categorizadas de acuerdo a los criterios de la Lista Roja de UICN. De las 47 especies de anfibios, siete se encuentran En Peligro Crítico (CR, cinco En Peligro (EN, una Vulnerable (VU, tres Casi Amenazadas (NT, y dos con Datos Deficientes (DD; las especies restantes son consideradas como Preocupación Menor (LC. Entre las 64 especies de reptiles evaluados, una se encuentra en Peligro Crítico (CR, siete En Peligro (EN, dos como Vulnerables (VU, una Casi Amenazadas (NT y siete con Datos Deficientes (DD; las especies restantes son consideradas como Preocupación Menor (LC. El uso de estos resultados como un criterio adicional en la definición de áreas protegidas en Uruguay contribuirá hacia la conservación de dichas especies amenazadas y sus ecosistemas asociados.

  19. The Stratigraphy of the Cambrian Lancara Formation between the Luna River and the Esla River in the Cantabrian Mountains, Spain

    NARCIS (Netherlands)

    Meer Mohr, van der C.G.

    1969-01-01

    The Lancara Formation is a unit of carbonate sediments of Lower to Middle Cambrian age in the Cantabrian Mountains of northern Spain. The formation is divisible into a Dolomite Member, a Limestone Member and a Griotte Member. The Dolomite Member and the Limestone Member consist mainly of very

  20. Oxygen-isotope trends and seawater temperature changes across the Late Cambrian Steptoean positive carbon-isotope excursion (SPICE event)

    Science.gov (United States)

    Elrick, M.; Rieboldt, S.; Saltzman, M.; McKay, R.M.

    2011-01-01

    The globally recognized Late Cambrian Steptoean positive C-isotope excursion (SPICE) is characterized by a 3???-5??? positive ??13C shift spanning thermohaline circulation rates contributed to decreased dissolved O2 concentrations, which enhanced the preservation/burial of Corg causing the positive ??13C shift. ?? 2011 Geological Society of America.

  1. Conodont biostratigraphy of the Upper Cambrian and Lower Ordovician of north-western Öland, south-eastern Sweden

    NARCIS (Netherlands)

    Wamel, W.A. van

    1974-01-01

    This paper forms part of the author's thesis "Lithostratigraphy, environmental interpretation and conodont biostratigraphy of the Upper Cambrian and Lower Ordovician of north-western bland, south-eastern Sweden". The purpose of this investigation was to unravel the lithogenesis and the history

  2. The paleomagnetism of the salt pseudomorph beds of middle cambrian age from the salt range, West Pakistan

    NARCIS (Netherlands)

    Wensink, H.

    1972-01-01

    Oriented cores for a paleomagnetic investigation were collected from ten sites in the sedimentary redbeds of the Salt Pseudomorph Beds of Middle Cambrian age m the Salt Range near Khcwra. All samples were subjected to progressive, thermal demagnetization procedures which revealed the

  3. Historia de la gramatica espanola en America Uruguay. A proposito de Francisco Gamez Marin

    National Research Council Canada - National Science Library

    Zamorano Aguilar, Alfonso

    2005-01-01

    ..., gramatica, Uruguay. *** LA CODIFICACION del espanol en America supone un reto y, a la vez, una fuente de investigacion muy importante para el historiador y para el historiografo de la linguistica, sobre todo, por la escasez de trabajos realizados, mas alla de los estudios de Sebeok (1968; especificamente, vol. IV), Rabanales (1978), Parodi (1981), Lope ...

  4. Exploring biophysical potential and sustainability of wheat cultivation in Uruguay at the national level

    NARCIS (Netherlands)

    Mantel, S.; Engelen, van V.W.P.; Molfino, J.H.; Resink, J.W.

    2000-01-01

    A methodology is presented that explores soil survey information at the national level (1:1 M), generating sustainability indicators for wheat cultivation in Uruguay. Potential yields were calculated for simplified crop production situations under several constraints, such as limitation of water

  5. Mesoproterozoic evolution of the Rio de la Plata Craton in Uruguay: at the heart of Rodinia?

    DEFF Research Database (Denmark)

    Gaucher, Claudio; Frei, Robert; Chemale, Farid

    2011-01-01

    Mesoproterozoic volcanosedimentary units and tectonic events occurring in the Ri´o de la Plata Craton (RPC) are reviewed. A belt consisting of volcanosedimentary successions exhibiting greenschist-facies metamorphism is exposed in the eastern RPC (Nico Pe´rez Terrane) in Uruguay. The Parque UTE G...

  6. Practices to Reduce Milk Carbon Footprint on Grazing Dairy Farms in Southern Uruguay: Case Studies.

    Science.gov (United States)

    Carbon footprint (CF) is an increasingly relevant indicator to estimate the impact of a product on climate change. This study followed international guidelines to quantify the CF of milk produced on 24 dairy farms in Uruguay. Cows were grazed all year and supplemented with concentrate feeds. These d...

  7. Mobbing in schools and hospitals in Uruguay : Prevalence and relation to loss of status

    NARCIS (Netherlands)

    Buunk, Abraham P.; Franco, Silvia; Dijkstra, Pieternel; Zurriaga, Rosario

    2017-01-01

    In the present study in secondary schools and hospitals in Uruguay (N = 187), we examined the relationship between feeling the victim of mobbing and a perceived loss of status. Nearly all forms of mobbing were more prevalent among hospital employees than among school employees. Among hospital

  8. Women, feminism and social change in Argentina, Chile and Uruguay, 1980-1940

    Directory of Open Access Journals (Sweden)

    Guimoar Dueñas

    1996-01-01

    Full Text Available Asunción Lavrin. Women, feminism and social change in Argentina, Chile and Uruguay, 1890-1940. Lincoln and London: University of Nebraska Press, 1995, 481 páginas. Tercer volúmen de la serie Engendering Latin America.

  9. Miscellaneous: Uruguay energy supply options study assessing the market for natural gas - executive summary.

    Energy Technology Data Exchange (ETDEWEB)

    Conzelmann, G.; Veselka, T.; Decision and Information Sciences

    2008-03-04

    Uruguay is in the midst of making critical decisions affecting the design of its future energy supply system. Momentum for change is expected to come from several directions, including recent and foreseeable upgrades and modifications to energy conversion facilities, the importation of natural gas from Argentina, the possibility for a stronger interconnection of regional electricity systems, the country's membership in MERCOSUR, and the potential for energy sector reforms by the Government of Uruguay. The objective of this study is to analyze the effects of several fuel diversification strategies on Uruguay's energy supply system. The analysis pays special attention to fuel substitution trends due to potential imports of natural gas via a gas pipeline from Argentina and increasing electricity ties with neighboring countries. The Government of Uruguay has contracted with Argonne National Laboratory (ANL) to study several energy development scenarios with the support of several Uruguayan institutions. Specifically, ANL was asked to conduct a detailed energy supply and demand analysis, develop energy demand projections based on an analysis of past energy demand patterns with support from local institutions, evaluate the effects of potential natural gas imports and electricity exchanges, and determine the market penetration of natural gas under various scenarios.

  10. The "Tuteo" of Rocha, Uruguay: A Study of Pride and Language Maintenance

    Science.gov (United States)

    Weyers, Joseph R.

    2014-01-01

    This paper examines the tuteo in Rocha, Uruguay, a unique situation in a country that is mostly "voseante." The study draws on speakers' attitudes toward "tú" and "vos" in Rocha, taken from informal interviews and from a linguistic attitude survey. The survey was conducted with 58 informants, most of whom were…

  11. Validation of a self-administered FFQ in adults in Argentina, Chile and Uruguay

    National Research Council Canada - National Science Library

    Elorriaga, Natalia; Irazola, Vilma E; Defagó, María D; Britz, Mónica; Martínez-Oakley, Solange P; Witriw, Alicia M; Rubinstein, Adolfo L

    2015-01-01

    ... (Argentina, Chile and Uruguay) of a self-administered FFQ to be used in the CESCAS I Study, an ongoing observational prospective cohort study to detect and follow up CVD and their risk factors, as well as in other epidemiological studies...

  12. French Trade Policy During the GATT Uruguay Round: Between Domestic and International Constraints

    NARCIS (Netherlands)

    Alons, G.C.

    2012-01-01

    During the GATT Uruguay Round (1986-1993) France was one of the most conservative European member states and succeeded in influencing European position taking on agricultural trade liberalization. France’s recalcitrant position is often considered an outcome of purely domestic political

  13. Quality of Life Satisfaction among Workers and Non-Workers in Uruguay

    Science.gov (United States)

    Gandelman, Nestor; Piani, Giorgina

    2013-01-01

    In this paper we use data from a population survey on quality of life dimensions conducted in Uruguay to analyze the self reported well-being among workers and non workers. Along with the literature, we find that the probability of being happy is greater for workers than non-workers. Specifically, we find evidence that workers tend to be more…

  14. Tributación del Sector Transporte de Carga en Uruguay

    OpenAIRE

    Pedro Buonomo

    2004-01-01

    El objetivo general de este estudio es determinar la carga tributaria efectiva que incide sobre el transporte de cargas, en particular para los modos transporte terrestre (camión) y transporte aéreo, en la República Oriental del Uruguay.

  15. The great depression in Argentina, Brazil and Uruguay : revisiting vulnerabilities and policies

    NARCIS (Netherlands)

    Gerona Morales, Marcelo Esteban; Sosa Clavijo, Silvana Maria

    2015-01-01

    In this thesis Marcelo Gerona and Silvana Sosa undertake an analysis of the Great Depression (1928-1934) in a sample of three highly interconnected South American countries: Argentina, Brazil and Uruguay (ABU). The problem tackled in this work is the relative vulnerabilities of ABU, which

  16. Exploring options for sustainable development of vegetable farms in South Uruguay

    NARCIS (Netherlands)

    Dogliotti Moro, S.

    2003-01-01

    Keywords:land use system, modeling, farming system, future-oriented studies, vegetables,

    The sustainable development of vegetable farms in South Uruguay requires the development of farming systems that contribute

  17. Farmers versus ideas: explaining the continuity in French agricultural trade policy during the GATT Uruguay Round

    NARCIS (Netherlands)

    Alons, G.C.

    2014-01-01

    France's protectionist position regarding agricultural trade is often claimed to result from French farm lobby influence. This article challenges such established claims, based on an analysis of French decision-making on the agricultural chapter of the GATT Uruguay Round. Farm lobby pressure cannot

  18. The First Paleomagnetic data from the Cambrian basalts of Henrietta Island (De Long Archipelago, Arctic Ocean)

    Science.gov (United States)

    Metelkin, D. V.; Zhdanova, A.; Vernikovskiy, V. A.; Matushkin, N. Y.

    2015-12-01

    Henrietta Island in De Long archipelago (East-Siberian sea) still remains poorly studied geologically but last investigations show that its volcano-sedimentary sequences can help reconstruct tectonic evolution of East Russian Arctic in Early Paleozoic stage. The deposits lying on Precambrian basements are deformed to varying degrees and intruded by mafic dykes.The study was carried out on two basaltic lava flows whose 40Ar/39Ar age is 520.6±9.5 Ma. Previously the age of these basalts was assumed Cretaceous. According to available data the underlaying sediments contain zircons with Cambrian and Ordovician ages but all boundaries between these basalts and other strata are tectonic. So we suppose the age of basalts as Middle Cambrian but more precise geochronological data are required. All magnetic measurements were performed at the Laboratory of Geodynamics and Paleomagnetism of Institute of Petroleum Geology and Geophysics (Novosibirsk). Basalt samples has relatively high magnetic susceptibility values varying from 5x10-4 to 180x10-4SI units. NRM values range is from 3 to 170 mA/m. Petromagnetic parameters including also coercive characteristics point at the good potentially preserving primary magnetization. Stepwise thermal demagnetization permits to isolate characteristic components of magnetization and calculate mean directions in two lava flows: 1. Ds=294.3°, Is=29.1°, K=81.1, α95=5.1; 2. Ds=301.0°, Is=28.3°, K=34.4, α95=7.9). The mean paleomagnetic pole has coordinates: Plat=20.9°, Plong = 42.6°, dp/dm=14.3/7.9. Paleolatitude was defined as 15.3° but the question of the hemisphere for De Long Islands is open yet. In case of south hemisphere in Middle Cambrian according to available paleomagnetic data De Long islands could be placed close to Taimyr margin of Siberia and in case of northern hemisphere they may be located near south (in present-day coordinates) margin of Siberia. The work was supported by grant RFBR 14-05-31399 and Russian Research Fund

  19. Unraveling the redox evolution of the Yangtze Block across the Precambrian/Cambrian transition

    Science.gov (United States)

    Diamond, C. W.; Zhang, F.; Chen, Y.; Lyons, T. W.

    2016-12-01

    Rocks preserved on the South China Craton have played a critical role in refining our understanding of the co-evolution of life and Earth's surface environments in the Late Neoproterozoic and earliest Paleozoic. From the earliest metazoan embryos to the many examples of exceptional preservation throughout the Cambrian Explosion, South China has preserved an outstanding record of animal evolution across this critical transition. Similarly, rocks preserved in South China hold key insights into the changing ocean chemistry that accompanied this extraordinary time. Recent work form Sahoo and others (2016, Geobiology) used redox sensitive metal enrichments in the Ediacaran Doushantuo Formation to demonstrate that the redox state of the Latest Neoproterozoic oceans was highly dynamic, rather than stably oxygenated or anoxic as had both been suggested previously. In an attempt to follow on from this and other studies, we have examined samples from a drill core taken in eastern Guizhou capturing deep-water facies of the Liuchapo and Jiumenchong formations, which contain the Precambrian/Cambrian boundary. In addition to containing the boundary, the sampled interval contains an enigmatic, widespread horizon that is strongly enriched in Ni and Mo. We have taken a multi-proxy approach in our investigation of this layer, the possible implications it has for the strata above and below (i.e., how its presence affects their utility as archives of paleo-redox conditions), and what those strata can tell us about local and global redox conditions during this pivotal time in Earth's history. Our Fe speciation data indicate that conditions were sulfidic at this location throughout the majority of the sampled interval. While redox sensitive metal concentrations are dramatically enriched in the Ni/Mo interval, their concentrations return to modest enrichments above it and continue to decrease upward. This trend suggests that while the conditions that favored extreme enrichment during the

  20. Transient deep-water oxygenation in the early Cambrian Nanhua Basin, South China

    Science.gov (United States)

    Cheng, Meng; Li, Chao; Zhou, Lian; Feng, LianJun; Algeo, Thomas J.; Zhang, FeiFei; Romaniello, Stephen; Jin, ChengSheng; Ling, HongFei; Jiang, ShaoYong

    2017-08-01

    Many late Neoproterozoic to early Cambrian fossils of multicellular eukaryotes, including those of benthic animals, are found preserved under anoxic and even euxinic bottom-water conditions, which is contradictory to the consensus that oxygen is essential to eukaryotes. To investigate this conundrum, we conducted an integrated study of iron speciation, redox-sensitive trace elements, and Mo isotopes (δ98Mo) on the black shale interval of the lower Cambrian Hetang Formation (∼535-521 Ma) at Lantian, South China, in which benthic sponge fossils are abundant in the lower member (LM) but absent in the upper member (UM). Iron speciation data point to uniformly anoxic-ferruginous conditions in the LM and euxinic conditions in the UM, whereas the trace-element and δ98Mo data show greater secular variation in redox conditions. The LM shows higher mean trace element concentrations (Mo: 108 ppm, U: 36 ppm, V: 791 ppm) and lower and more variable δ98Mo (+0.13 to +1.76‰) relative to the UM (Mo: 45 ppm, U: 18 ppm, V: 265 ppm, δ98Mo: +1.59 to +1.67‰), and ratios of redox-sensitive trace element concentrations to total organic carbon are significantly more variable and higher on average in the LM relative to the UM. The appearance of sponge fossils and lower δ98Mo values correlate strongly with gray (i.e., lighter-colored) layers in the LM. These patterns can best be interpreted as recording mainly euxinic conditions throughout deposition of the study units, with more intense background euxinia in the LM relative to the UM, but also with frequent transient oxygenation events in the LM that do not appear in the UM. The transient oxygenation events of the LM led to the initial colonization of the deep Nanhua Basin by sponges, and the termination of these events in the UM caused sponge faunas to disappear until a general rise in O2 levels later in the Cambrian permitted their return to deeper-water habitats. Our study also illustrates that multiple geochemical and

  1. Experiencia educativa con Grupos de Facebook

    OpenAIRE

    Gómez, María Florencia

    2016-01-01

    Para continuar con el tema de este mes sobre relatos de experiencias educativas innovadoras con tecnologías, en esta publicación presentaré algunos beneficios de trabajar con Grupos Facebook para el seguimiento de un trabajo práctico grupal en la asignatura de grado Seminario de Psicología Experimental (Fac. de Psicología, UNLP). Dicha actividad consiste en el armado progresivo de una propuesta de investigación conforme se introducen las temáticas metodológicas en cada una de las clases. Asim...

  2. Trabajo en grupos en el aula universitaria

    OpenAIRE

    Blotto, Bettina Graciela; Ramírez, Stella Maris

    2016-01-01

    Pensar hoy en equipos de trabajo para organizar las clases en el nivel universitario, no significa imaginar conjuntos de estudiantes que se reúnen con intención de leer una guía de estudio y completarla. Coincidiendo con López Noguero (2007), el docente universitario debe trabajar colaborativamente con los grupos de estudiantes, realizando un giro significativo desde diferentes puntos de vista (pedagógico, epistemológico y psicosocial), recurriendo a la búsqueda de nuevas estrategias que tome...

  3. Inmunidad de grupo. Significado e importancia

    OpenAIRE

    Vaqué Rafart, Josep

    2005-01-01

    En los últimos veinte años el concepto de “inmunidad de grupo” ha adquirido gran relevancia debido a su utilidad para definir los objetivos y estrategias de los programas de vacunación, pues permite determinar la intensidad de las actuaciones a aplicar para impedir brotes epidémicos y para controlar y eliminar enfermedades infecciosas. Su definición clásica, establecida por Fox en 1971, dice: "Es la resistencia de un grupo a una infección ante la que una amplia proporción de individuos posee ...

  4. Grupos de formação

    OpenAIRE

    Fernandes, Sonia Cristina Lima

    2000-01-01

    Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Educação. A proposta deste trabalho foi compreender os sentidos e significados formulados pelos professores da Educação Infantil da Rede Municipal de Florianópolis acerca de sua própria formação na experiência de formação em serviço por eles vivenciado nos Grupos de Formação, entre 1994 e 1996, no Governo da Frente Popular. Foram investigados os documentos gerados pela Secretaria Municipal de Educação re...

  5. Lower Cambrian cherts in the northern Tarim Basin, China: implication for the sedimentary environments and tectonic history

    Science.gov (United States)

    Zhang, Chunyu; Guan, Shuwei; Wu, Lin; Ren, Rong

    2017-04-01

    Phosphorus-bearing shale and cherts are widely distributed in the lower Cambrian and record significant information about the basin evolution and the tectonic history. We investigated the Lower Cambrian cherts in the northern Tarim Basin to decode their origin and the tectonic evolution. Field observation shows that chert are layered, layeroid and lens-shaped. Beded chert are underlain, overlain and interbedded with layered dolomite demonstrating that the cherts were deposited in the shallow marine depositional environment, near the storm wave base. Major and rare earth elements geochemistry of lower Cambrian cherts were performed from 2 profiles in the northern Tarim Basin. They are characterized by very high SiO2(average > 90%) low TiO2(≤ 0.01%) and low Al/(Al+Fe+Mn) ratio(avg. 0.26 and 0.16). Samples plotted in the Al-Fe-Mn diagram show that most of the cherts were influenced by hydrothermal fluids. All the cherts have low ΣREE(avg. 22.56 and 19.04), intermediate negative Ce anomaly(avg. 0.59 and 0.58) and slight to intermediated negative Eu anomaly(0.85 and 0.73), low shale-normalized Lan/Ybn values(avg. 0.51 and 0.51)and intermediate Lan/Ybn values (avg. 1.92 and 1.91). These indicate that the cherts were deposited in the open marine modified by the hydrothermal influence. Shallow-water deposition from the field observation contradicted from the deep-water deposition from the geochemistry signature. Combined with previous studies, We suggest that the cherts in the lower Cambrian of the northern Tarim Basin were deposited in a shallow-water shelf influenced by the hydrothermal fluids from the upwelling, carrying the deep water information. The hydrothermal fluids probably came from the South Tianshan Ocean, indicating its openning from the Neoproterozoic rift to the early Cambrian mature ocean.

  6. LA LOCALIDAD HISTÓRICO ARQUEOLÓGICA DEL RÍO SAN SALVADOR (SORIANO, URUGUAY The historical archaeological town of Rio San Salvador (Soriano, Uruguay

    Directory of Open Access Journals (Sweden)

    José López Mazz

    2014-12-01

    Full Text Available Los primeros cronistas de la conquista del Río de la Plata expusieron la diversidad cultural reinante en el área en el siglo XVI. Las investigaciones arqueológicas de los años 60 y 70 confirman, a nivel arqueológico, la intensa ocupación de la que fue objeto esta zona próxima a la confluencia del río Paraná con el río Uruguay. Este trabajo presenta información producida durante un trabajo de diagnóstico realizado en el marco de la llamada Arqueología Pública, en un sitio de ocupación española del siglo XVI ubicado al oriente de dicha confluencia. Los resultados muestran que la ocupación del sitio desde el año 1000 AP está caracterizada por una amplia diversidad de estilos cerámicos. El área constituyó un lugar estratégico para los asentamientos europeos en función de la presencia de redes de intercambio pre existente. La información producida permite afinar la secuencia cronológica prehistórica para el bajo río Uruguay, al tiempo que abre el debate  respecto de la dinámica etnohistórica regional y del rol jugado por este particular asentamiento humano.   Palabras claves: asentamientos europeos, Uruguay, río San Salvador, siglo XVI.    Abstract Early chroniclers of the conquest of the Río de la Plata exposed the cultural diversity prevailing in the area in the sixteenth century. Archaeological research during the 60’s and 70’s confirm an intense occupation of the confluence of the Paraná river and the Uruguay river area. This paper presents information recovered during a diagnostic fieldwork developed on a Spanish settlement from the sixteenth century. The results show an intense occupation of the site since 1000 AP, characterized by a wide variety of ceramic styles. The area was a strategic location for European occupation due to the presence of preexisting exchange networks. Information produced refines prehistoric chronological sequence for lower Uruguay river while opening the discussion about regional

  7. Epidemiological investigation of bovine tuberculosis outbreaks in Uruguay (2011-2013).

    Science.gov (United States)

    Picasso, Catalina; Alvarez, Julio; VanderWaal, Kimberly L; Fernandez, Federico; Gil, Andres; Wells, Scott J; Perez, Andres

    2017-03-01

    Bovine tuberculosis (bTB) is a chronic disease of cattle caused by infection with the Mycobacterium bovis. While bTB prevalence in Uruguay has been low (<11 outbreaks/year) for the past 50 years as a consequence of a national control program, annual incidence increased in 2011 through 2013-15, 26 and 16 infected herds each year, raising concerns from livestock stakeholders and the government. The goal of this study was to assess the spatial dynamics of bTB in Uruguay from 2011 to 2013 and the association between bTB and potential demographic and movement risk factors at the herd level using data provided by the Uruguayan Ministry of Livestock, Agriculture, and Fisheries. Clustering of incident outbreaks was assessed using the Cuzick-Edwards' test and the Bernoulli model of the spatial scan statistic, and a conditional multivariable logistic regression model was used to assess risk factors associated with bTB in a subset of Uruguayan dairy farms. Significant (P<0.05) global clustering was detected in 2012, while high-risk local clusters were detected in southwestern (2011, 2012, 2013), northwestern (2012), and southeastern (2012) Uruguay. Increased risk of bTB in different regions of Uruguay suggests a potential role of animal movements in disease dissemination. Larger herds, higher numbers of animals purchased, and incoming steers to the farm were associated with increased odds of breaking with bTB, in agreement with previous studies but also suggesting other additional sources of risk. These results will contribute to enhanced effectiveness of bTB control programs in Uruguay with the ultimate objective of preventing or mitigating the impact of the disease in the human and animal populations of the country. Copyright © 2017 Elsevier B.V. All rights reserved.

  8. Why did life develop on the surface of the Earth in the Cambrian?

    Directory of Open Access Journals (Sweden)

    Carlo Doglioni

    2016-11-01

    Full Text Available Life was limited for most of Earth's history, remaining at a primitive stage and mostly marine until about 0.55 Ga. In the Paleozoic, life eventually exploded and colonized the continental realm. Why had there been such a long period of delayed evolution of life? Early life was dominated by Archaea and Bacteria, which can survive ionizing radiation better than other organisms. The magnetic field preserves the atmosphere, which is the main shield of UV radiation. We explore the hypothesis that the Cambrian explosion of life could have been enabled by the increase of the magnetic field dipole intensity due to the solidification of the inner core, caused by the cooling of the Earth, and the concomitant decrease with time of the high-energy solar flux since the birth of the solar system. Therefore, the two phenomena could be responsible for the growth and thickening of the atmosphere and the development of land surface life.

  9. Petrographic and geochemical composition of kerogen in the Furongian (U. Cambrian) Alum Shale, central Sweden

    DEFF Research Database (Denmark)

    Sanei, H.; Petersen, H. I.; Schovsbo, N. H.

    2014-01-01

    This paper presents an integrated geochemical and petrological study of the Hällekis-1 core from the Furongian (upper Cambrian) Alum shales in central Sweden to characterise organic matter composition, depositional environment, and potential hydrocarbon generation capability. The results show...... that organic-rich Alum Shale (TOC: 8.9-28.0. wt.%) contains mainly immature, predominantly algal-derived kerogen with unusually reduced hydrocarbon generation potential as suggested by relatively low Hydrogen Index (HI) values (HI: 251-471. mg HC/g TOC) and high degree of aromaticity. In the absence of thermal...... generation of hydrocarbons in these immature shales, the recorded low HI values are explained by an unusual chemistry of the biota during the deposition of the Alum shale accentuated by a high degree of sustained bacterially-mediated degradation (e.g., sulphate reduction), and possibly intense nuclear...

  10. EBSD characterization of pre-Cambrian deformations in conglomerate pebbles (Sierra de la Demanda, Northern Spain)

    Science.gov (United States)

    Puelles, Pablo; Ábalos, Benito; Fernández-Armas, Sergio

    2010-05-01

    Pre-Cambrian and unconformable earliest Cambrian rocks from the Sierra de la Demanda (N Spain) exhibit field and microstructural relationships that attest to orogenic events recorded by concealed basement rocks. Neoproterozoic foliated slates ("Anguiano Schists") crop out under up to 300 m thick, unfoliated quartz-rich conglomerates ("Anguiano Conglomerates") and quartzites which are stratigraphically ca. 600 m below the oldest, paleontologically dated, pre-trilobitic Cambrian layers (likely older than 520 Ma). The Anguiano Conglomerates contain mm to cm grainsized well-rounded pebbles of various types including monocrystalline quartz, detrital zircon and tourmaline-bearing sandstones, black cherts and metamorphic poly-crystalline quartz aggregates. The undeformed matrix is made of much smaller (diagenetically overgrown) monocrystaline quartz grains and minor amounts of accesory zircon, tourmaline and mica. Black chert pebbles exhibit microstructural evidence of brittle deformation (microfaults and thin veins of syntaxial fibrous quartz). These and the fine-grained sandstone pebbles can also exhibit ductile deformations (microfolds with thickened hinges and axial planar continuous foliations), too. Polycrystalline quartz pebbles exhibit a variety of microstructures that resulted from syn-metamorphic ductile deformations. These are recognisable under the petrographic microscope and include continuous foliations, quartz shape fabrics, various types of subgrain or recrystallized new grain microtextures, and lattice preferred orientations (LPOs). Conventional characterization of quartz fabrics (after oriented structural sections) is challenged in conglomerate pebble thin sections by the difficulty of unraveling in them the complete structural reference framework provided by foliation (whose trace can be unraveled) and lineation orientation (which cannot be directly identified). Quartz in various metamorphic polycrystalline pebbles was studied with the Electron Back

  11. Biostratigraphy of the Furongian (upper Cambrian) Alum Shale Formation at Degerhamn, Öland, Sweden

    DEFF Research Database (Denmark)

    Rasmussen, Bo Wilhelm; Rasmussen, Jan A.; Nielsen, Arne Thorshøj

    2017-01-01

    The Furongian (upper Cambrian) Alum Shale at Degerhamn, southern Öland, Sweden, has been systematically sampled for macrofossils. Two sections were investigated, one in a large abandoned Alum Shale quarry and one in a nearby road section. The 6.25 m thick succession comprises the Olenus, Parabolina...... in addition to the informal Olenus rotundatus and Sphaerophthalmus modestus zones. The informal Olenus rotundatus biozone is assumed corresponding in age to the Olenus scanicus Chronozone and the informal Sphaerophthalmus modestus biozone is assumed corresponding in age to the Ctenopyge (Mesoctenopyge......) similis Chronozone; S. modestus has not previously been reported from Öland. The uppermost parts of the O. gibbosus, O. truncatus, P. spinulosa and C. tumida zones are reworked. Peltura minor may range into the basal C. linnarssoni Zone; alternatively it is also reworked. Ctenopyge (Ctenopyge) directa...

  12. Raman spectra of a Lower Cambrian ctenophore embryo from southwestern Shaanxi, China

    Science.gov (United States)

    Chen, Jun-Yuan; Schopf, J. William; Bottjer, David J.; Zhang, Chen-Yu; Kudryavtsev, Anatoliy B.; Tripathi, Abhishek B.; Wang, Xiu-Qiang; Yang, Yong-Hua; Gao, Xiang; Yang, Ying

    2007-01-01

    The Early Cambrian (≈540 million years old) Meishucun fossil assemblage of Ningqiang County (Shaanxi Province), China, contains the oldest complex skeletonized organisms known in the geological record. We here report the finding in this assemblage of an exquisitely preserved late-stage embryo of a ctenophore (“comb jelly”), its fine structure documented by confocal laser scanning microscopy and shown by Raman spectroscopy to be composed of carbonaceous kerogen permineralized in apatite. In its spheroidal morphology, the presence of eight comb rows and the absence of tentacles, this embryo resembles an adult ctenophore (Maotianoascus octonarius) known from the immediately younger Chengjiang fauna of Yunnan, China. The oldest ctenophore and the only embryonic comb jelly known from the fossil record, this exceptionally well preserved specimen provides important clues about the early evolution of the phylum Ctenophora and of metazoans in general. PMID:17404242

  13. The anatomy, taphonomy, taxonomy and systematic affinity of Markuelia: Early Cambrian to Early Ordovician scalidophorans

    Science.gov (United States)

    Dong, X.-P.; Bengtson, S.; Gostling, N.J.; Cunningham, J.A.; Harvey, T.H.P.; Kouchinsky, A.; Val'Kov, A.K.; Repetski, J.E.; Stampanoni, M.; Marone, F.; Donoghue, P.C.J.

    2010-01-01

    Markuelia is a vermiform, annulated introvertan animal known as embryonic fossils from the Lower Cambrian to Lower Ordovician. Analysis of an expanded and revised dataset for Introverta shows that the precise position of Markuelia within this clade is dependent on the taxa included. As a result, Markuelia is assigned to the scalidophoran total group to reflect uncertainty as to whether it is a stem-scalidophoran or a stem-priapulid. The taxonomy of the genus is revised to provide an improved taxonomic framework for material assigned to Markuelia. Five species are recognized: M. secunda Val'kov, M. hunanensis Dong and Donoghue, M. lauriei Haug et al., M. spinulifera sp. nov. and M. waloszeki sp. nov. Finally, the preservation of Markuelia is evaluated in the light of both the taphonomy of the fossil embryos themselves and the experimental taphonomy of the priapulid Priapulus caudatus, which has been proposed as both a close relative and an anatomical analogue of Markuelia. ?? The Palaeontological Association.

  14. Taxonomía y dinámica de las expectativas económicas de los empresarios industriales en Uruguay. Un análisis de conglomerados

    Directory of Open Access Journals (Sweden)

    Bibiana Lanzilotta Mernies

    2014-12-01

    Full Text Available Este artículo investiga los vínculos existentes entre los sectores industriales en Uruguay, con el fin de extraer señales acerca del proceso de formación de sus expectativas. El enfoque es predominantemente empírico, basado en la exploración de algoritmos de agrupación, mediante una única conexión con el vecino más cercano. Los resultados muestran que existe un grupo de industrias conectadas en expectativas, mayormente integrado por aquellas más expuestas a la competencia internacional. Estos ocupan los nodos centrales de la red de conexiones intersectoriales. Adicionalmente, se prueba que la cohesión entre las ramas industriales tiene una correlación positiva con el crecimiento manufacturero.

  15. Competencias y entorno clinico de aprendizaje en enfermería: autopercepcion de estudiantes avanzados de Uruguay/Competencies and clinical learning environment in nursing: self perception of advanced students in Uruguay

    National Research Council Canada - National Science Library

    María Cecilia de-Souza-Cruz; María Isabel Mariscal-Crespo

    2016-01-01

    ... de Enfermería de la Universidad de la República and Universidad Católica del Uruguay. The data were collected during 2013 using two self-administered instruments, the Nurse Competence Scale (NCS...

  16. Competencias y entorno clinico de aprendizaje en enfermería: autopercepcion de estudiantes avanzados de Uruguay/Competencies and clinical learning environment in nursing: self perception of advanced students in Uruguay

    National Research Council Canada - National Science Library

    María Cecilia de-Souza-Cruz

    2016-01-01

    ... Enfermería de la Universidad de la República and Universidad Católica del Uruguay. The data were collected during 2013 using two self-administered instruments, the Nurse Competence Scale (NCS...

  17. A new stalked filter-feeder from the middle Cambrian Burgess Shale, British Columbia, Canada.

    Directory of Open Access Journals (Sweden)

    Lorna J O'Brien

    Full Text Available Burgess Shale-type deposits provide invaluable insights into the early evolution of body plans and the ecological structure of Cambrian communities, but a number of species, continue to defy phylogenetic interpretations. Here we extend this list to include a new soft-bodied animal, Siphusauctum gregarium n. gen. and n. sp., from the Tulip Beds (Campsite Cliff Shale Member, Burgess Shale Formation of Mount Stephen (Yoho National Park, British Columbia. With 1,133 specimens collected, S. gregarium is clearly the most abundant animal from this locality.This stalked animal (reaching at least 20 cm in length, has a large ovoid calyx connected to a narrow bilayered stem and a small flattened or bulb-like holdfast. The calyx is enclosed by a flexible sheath with six small openings at the base, and a central terminal anus near the top encircled by indistinct openings. A prominent organ, represented by six radially symmetrical segments with comb-like elements, surrounds an internal body cavity with a large stomach, conical median gut and straight intestine. Siphusauctum gregarium was probably an active filter-feeder, with water passing through the calyx openings, capturing food particles with its comb-like elements. It often occurs in large assemblages on single bedding planes suggesting a gregarious lifestyle, with the animal living in high tier clusters. These were probably buried en masse more or less in-situ by rapid mud flow events.Siphusauctum gregarium resembles Dinomischus, another Cambrian enigmatic stalked animal. Principal points of comparison include a long stem with a calyx containing a visceral mass and bract-like elements, and a similar lifestyle albeit occupying different tiering levels. The presence in both animals of a digestive tract with a potential stomach and anus suggest a grade of organization within bilaterians, but relationships with extant phyla are not straightforward. Thus, the broader affinities of S. gregarium remain

  18. Das categorias aos grupos sociais: representações sociais dos grupos urbano e rural

    Directory of Open Access Journals (Sweden)

    Mariana Bonomo

    Full Text Available As reflexões que conduziram o estudo focalizaram a referência entre a elaboração do campo representacional e o processo de identificação social referentes à ruralidade e à urbanidade. Esse propósito serviu-se de dois objetos que integram as categorias sociais de interesse e os grupos sociais vinculados, pessoas do meio rural e pessoas da cidade. Os corpora de dados, processados através do software EVOC- 2003, foram coletados por meio da técnica da associação livre a partir de entrevistas com 200 integrantes de quatro gerações de uma comunidade rural, com idades entre 07 e 81 anos. Os resultados indicaram que as representações sobre o endogrupo estão fundamentadas em estereótipos positivos, enquanto as representações sobre o exogrupo retratam a imagem dos citadinos como negativa, dinâmica que sugere um campo valorativo sustentado na ideologia, respectivamente, de um grupo com valores humanitários versus um grupo referenciado por valores capitalistas. Discute-se a função identitária do campo representacional para a manutenção da identidade social positiva do grupo rural.

  19. Grupos vulneráveis no Brasil

    Directory of Open Access Journals (Sweden)

    Luciana Gross Cunha

    2015-07-01

    Full Text Available Este artigo examina o grau de efetividade do Estado de direito no Brasil por meio de uma análise de como alguns grupos sociais vulneráveis, como mulheres e negros, lidam com as leis e as instituições da Justiça no Brasil. Criamos o Índice Brasileiro de Confiança na Justiça (IBCJ, a fim de validar o argumento para a nossa medida a confiança e o Índice Brasileiro de Per- cepção e Conformidade com a Lei (IBPCL que mede as percepções, atitudes e hábitos dos brasileiros re- lativos ao cumprimento da lei. Nós identificamos al- gumas razões que poderiam explicar as percepções desses grupos sociais específicos. Descobrimos que existe uma relação positiva e significativa entre a o IBCJ e o IBRCL. Este artigo inova ao apresentar al- guns padrões estatísticos de dois grupos sociais vul- neráveis analisados aqui: mulheres e negros, os quais teriam poucas razões para obedecerem às leis. Além disso, nós concluímos que mulheres têm um nível mais alto de percepção de confiança e respeito às leis em relação aos homens; e também concluímos que negros têm a pior percepção de confiança e respeito às leis em comparação aos brancos, já que eles en- tendem que, no Brasil, raramente as pessoas seguem as leis. Nós também encontramos uma relação positi- va entre o índice de percepção da confiança e respei- to às leis e as variáveis de idade e renda.

  20. Situacion de salud oral de ninos uruguayos portadores de coagulopatias hereditarias. Centro Hospitalario Pereira Rossell, Montevideo, Uruguay

    National Research Council Canada - National Science Library

    Segovia, Adriana; Lewis, Willy; Rodriguez Grecco, Ismael; Boggia Tutaglio, Beatriz; Hermida Bruno, Maria Laura; Gabriel, Lucia; Alvarez Loureiro, Licet

    2011-01-01

    Proposito: describir la situacion de salud oral de los ninos portadores de coagulopatias atendidos en el Servicio de Hemoterapia del Centro Hospitalario Pereira Rossell de Montevideo, Uruguay, entre febrero...

  1. Geodatabase of the datasets used to represent the four aquifer subunits of the Cambrian-Ordovician aquifer system, Illinois, Iowa, Michigan, Minnesota, and Wisconsin

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This geodatabase includes spatial datasets that represent the Cambrian-Ordovician aquifer system in the States of Wisconsin, Michigan, Minnesota, Iowa, and Illinois....

  2. Linking south China to northern Australia and India on the margin of Gondwana: Constraints from detrital zircon U‐Pb and Hf isotopes in Cambrian strata

    National Research Council Canada - National Science Library

    Xu, Yajun; Cawood, Peter A; Du, Yuansheng; Hu, Lisha; Yu, Wenchao; Zhu, Yanhui; Li, Wenchao

    2013-01-01

    Cambrian sedimentary rocks in the southern part of the South China Craton were derived from a source that lay to the south or southeast, beyond the current limits of the craton and which is no longer preserved nearby. U...

  3. Tectonic and sedimentary evolution from the Late Sinian to Early Cambrian and their control on hydrocarbon source rocks in Tarim Basin, Western China

    Science.gov (United States)

    Wu, Lin

    2017-04-01

    The lower Cambrian black shale is widely distributed all over the world, but due to the deep buried depth of Cambrian in the Tarim Basin, the black shale, as high-quality source rocks, has never been found in the interior of the basin. Through further survey on outcrops in the periphery of the Tarim Basin, a set of hydrocarbon source rocks with high-quality was found developed at the bottom of the lower Cambrian Yuertusi formation in Tarim basin. Lithology of the source rock is black shale. Its organic carbon (TOC) mainly ranges 2-10%, organic carbon of black shale layer reaches 17%, and the thickness of outcrop is 10-15m in Aksu area. This discovery of hydrocarbon source rocks draws much attention to the oil and gas exploration in Cambrian. The author, integrating with seismic, drilling and geological data, analyzes the tectonic sedimentary evolution in late Sinian-early Cambrian in the basin and its control on formation and distribution of hydrocarbon source rocks in Early Cambrian in this paper. The Nanhua - early Sinian clastic rocks rift basin formed on the basement on Tarim under the control of Rodinia supercontinent tectonic movement. Post-rifting marine carbonate siliceous shale deposited from the late Sinian to Early Cambrian rifting. Wide transgression in Tarim in the late Sinian departed Tarim into two patterns in North and South with the central land as a boundary with structural features: higher topography in middle and lower topography in two sides. There was no change in the pattern of basin during the late Sinian tectonic movement, and the Cambrian sediments deposited and filled the basin in this period. The central ancient land with structural high topography formed angular unconformity, while the basin with low topography formed parallel unconformity. Therefore, the Early Cambrian sedimentary filling in the late Sinian basin overlapped from low topography to high topography. Their distribution patterns were similar, both of which were of great

  4. Disc-shaped fossils resembling porpitids (Cnidaria: Hydrozoa) or eldonids from the early Cambrian (Series 2: Stage 4) of western U.S.A.

    OpenAIRE

    Lieberman, Bruce S.; Kurkewicz, Richard; Shinogle, Heather; Kimmig, Julien; MacGabhann, Breandán Anraoi

    2017-01-01

    The morphology and affinities of newly discovered disc-shaped soft-bodied fossils from the early Cambrian (Series 2: Stage 4, Dyeran) Carrara Formation are discussed. These specimens show some similarity to the Ordovician Discophyllum Hall, 1847; traditionally this taxon had been treated as a fossil porpitid. However, recently it has instead been referred to another clade, the eldonids, which includes the enigmatic Eldonia Walcott, 1911 that was originally described from the Cambrian Burgess ...

  5. The significance of 24-norcholestanes, triaromatic steroids and dinosteroids in oils and Cambrian-Ordovician source rocks from the cratonic region of the Tarim Basin, NW China

    Science.gov (United States)

    Li, Meijun; Wang, T.-G.; Lillis, Paul G.; Wang, Chunjiang; Shi, Shengbao

    2012-01-01

    Two oil families in Ordovician reservoirs from the cratonic region of the Tarim Basin are distinguished by the distribution of regular steranes, triaromatic steroids, norcholestanes and dinosteroids. Oils with relatively lower contents of C28 regular steranes, C26 20S, C26 20R + C27 20S and C27 20R regular triaromatic steroids, dinosteranes, 24-norcholestanes and triaromatic dinosteroids originated from Middle–Upper Ordovician source rocks. In contrast, oils with abnormally high abundances of the above compounds are derived from Cambrian and Lower Ordovician source rocks. Only a few oils have previously been reported to be of Cambrian and Lower Ordovician origin, especially in the east region of the Tarim Basin. This study further reports the discovery of oil accumulations of Cambrian and Lower Ordovician origin in the Tabei and Tazhong Uplifts, which indicates a potential for further discoveries involving Cambrian and Lower Ordovician sourced oils in the Tarim Basin. Dinosteroids in petroleum and ancient sediments are generally thought to be biomarkers for dinoflagellates and 24-norcholestanes for dinoflagellates and diatoms. Therefore, the abnormally high abundance of these compounds in extracts from the organic-rich sediments in the Cambrian and Lower Ordovician and related oils in the cratonic region of the Tarim Basin suggests that phytoplankton algae related to dinoflagellates have appeared and might have flourished in the Tarim Basin during the Cambrian Period. Steroids with less common structural configurations are underutilized and can expand understanding of the early development history of organisms, as well as define petroleum systems.

  6. A new species of Austrolebias Costa (Cyprinodontiformes: Rivulidae from northeastern Uruguay, with comments on distribution patterns

    Directory of Open Access Journals (Sweden)

    Marcelo Loureiro

    Full Text Available A new species of Austrolebias is described based on individuals from the middle and upper río Negro (río Uruguay basin and río Yaguarón (Patos-Merín system. The new species can be differentiated from all other species of the genus by the unique presence in males of uniform bluish gray pigmentation on flanks (without vertical bands and unpaired fins. The new species is also distinguished by the combination of characters associated with a reduction of the squamation of the abdominal, preopercular, and opercular regions. The new species presents some morphological characteristics similar to A. gymnoventris and A. luteoflammulatus. The distribution of the new species is concordant with three other species of Austrolebias and may represent a case of drainage rearrangement of the río Negro upstream tributaries (río Uruguay basin and tributaries of laguna Merín system.

  7. La investigación y la enseñanza del periodismo en el Uruguay

    Directory of Open Access Journals (Sweden)

    Manuel Olarreaga

    2015-05-01

    Full Text Available Este trabajo tiene actualidad e importancia, por ser Uruguay uno de los países de América Latina que aún no ha incorporado la Enseñanza Superior de las Ciencias de la Comunicación a nivel universitario. El autor hace un análisis de lo que hasta la presente fecha se ha realizado en el campo de la investigación de la comunicación colectiva y la enseñanza del periodismo en el Uruguay. Se describe las investigaciones efectuadas y la metodología empleada en cada una de ellas, lo que da una imagen cabal del desarrollo y esfuerzo por incorporar las disciplinas de la comunicación a la investigación y enseñanza universitarias.

  8. CONTRIBUTIONS TO THE MOSS FLORA OF URUGUAY: THE GENUS POHLIA (BRYOPHYTA, BRYALES, A NEW RECORD

    Directory of Open Access Journals (Sweden)

    Guillermo M. Suárez

    2013-01-01

    Full Text Available El género Pohlia se presenta como un nuevo registro para Uruguay, donde está representado por dos especies: P. wahlenbergii y P. humilis (=P. tenuifolia. Pohlia humilis también se registra por primera vez para Colombia. Se propone a P. loriformis, una especie poco conocida descrita para Bolivia, como un nuevo sinónimo de P. humilis. Se designan lectotipos para P. loriformis y Mielichhoferia brachycarpa. Se presenta una clave para las especies de Pohlia de Uruguay y se indican, para P. humilis, los sinónimos de América del Sur, comentarios breves, su distribución e ilustraciones.

  9. Culturas ciudadanas y partidos tradicionales: Argentina y Uruguay (1982-90

    Directory of Open Access Journals (Sweden)

    Susana MALLO

    2009-11-01

    Full Text Available RESUMEN:I .—En Argentina se da un rápido retorno a la democracia, democratización que no se consolida existiendo continuos desequilibrios económicos y políticos. La transición en Uruguay se diferencia considerablemente siendo mucho más lenta, pero logrando a largo plazo una consolidación mayor del sistema político democrático.2.—Argentina pese a todos sus vaivenes políticos a lo largo de su historia, logró reconstituir el sistema de partidos bipartidista (radicales y peronistas con una notoria ausencia de partidos de derecha y de izquierda. Uruguay en cambio tiene importantes transformaciones del sistema de partidos, pasando de un sistema bipartidista (blancos y colorados a uno multipartidario. Es notorio el crecimiento del peso relativo de los partidos de izquierda en el sistema político.3.—Las violaciones de los DD.HH. en Argentina llevaron al juzgamiento y condena de los culpables, siendo posteriormente amnistiados. Para el caso uruguayo se optó por una ley de amnistía general para los responsables de violaciones a los DD.HH., medida que fue plebiscitada a instancia de la sociedad civil. Se analizan las distintas repercusiones que tuvieron para la consolidación de los sistemas políticos.4.—Tanto en Uruguay como en Argentina se generalizaron procesos electorales de "voto castigo" y alta rotatividad entre los votantes de los partidos tradicionales. Pero mientras que en Argentina no se registra una pérdida relativa en el caudal electoral de los partidos tradicionales, en Uruguay la pérdida constante de votantes de los mismos en los últimos años es muy apreciable.ABSTRACT:1.—Although Argentina underwent a fast democratization process, consolidation was not achieved and waves and breaking kept appearing. Different from this case, the re-democratization process in Uruguay is much more slowly but could get a better consolidation in the long run.2.—Argentina presented continuous waves all along its political history

  10. Francisco Berra and the Posivist Education in Uruguay (1874-1882

    Directory of Open Access Journals (Sweden)

    Marcelo David Coll Cárdenas

    2009-11-01

    Full Text Available The ideas of berra on education, that tended to make reign in the education a rigid naturalistic methodology, exerted their influence on the Argentine education, still before their performancein the scholastic government of the province of Buenos Aires. Through its documentary file it can know the river plate intellectual life in both borders, as well as the world strictly corresponding student and his pedagogical manifestations. In this work, we set out to study its performance in Uruguay between the years 1874 to 1882, whose election is not accidental. This period includes understands the beginning of its pedagogical activity in Uruguay, the elaboration of its main work ("The notes of pedagogia" and its participation in the pedagogical Congress of Buenos Aires in the heat of attack between liberal and clerical and the controversies untied by the advance of the positivismo.

  11. Extensional tectonics and sedimentary response of the Early–Middle Cambrian passive continental margin, Tarim Basin, Northwest China

    OpenAIRE

    Zhiqian Gao; Tailiang Fan

    2012-01-01

    The fact that several half-grabens and normal faults developed in the Lower–Middle Cambrian of Tazhong (central Tarim Basin) and Bachu areas in Tarim Basin, northwest China, indicates that Tarim Basin was under extensional tectonic setting at this time. The half-grabens occur within a linear zone and the normal faults are arranged in en echelon patterns with gradually increasing displacement eastward. Extensional tectonics resulted in the formation of a passive continental margin in the south...

  12. Siliceous spicules in a vauxiid sponge (Demospongia) from the Kaili Biota(Cambrian Stage 5), Guizhou, South China

    OpenAIRE

    Yang, X.-L.; Zhao, Y.-L.; Babcock, L. E.; Peng, J.

    2017-01-01

    Fossils of the sponge Angulosuspongia sinensis from calcareous mudstones of the middle and upper part of the Kaili Formation (Cambrian Stage 5) in the Jianhe area of Guizhou province, South China, exhibit an apparently reticulate pattern, characteristic of the Vauxiidae. Energy Dispersive X-Ray Spectrometry (EDS) and Raman spectroscopy analysis indicate the presence of silica in the skeletal elements of these fossils, suggesting that this taxon possessed a skeleton comprised of spicules. This...

  13. Porpitids (Cnidaria: Hydrozoa) from the early Cambrian (Series 2: Stage 4) of Nevada, U.S.A.

    OpenAIRE

    Lieberman, Bruce S.; Kurkewicz, Richard; Shinogle, Heather

    2017-01-01

    The morphology and affinities of newly discovered soft-bodied fossils from the early Cambrian (Series 2: Stage 4, Dyeran) Carrara Formation that resemble modern and fossil porpitids are discussed. These specimens show substantial similarity to the Ordovician porpitid Discophyllum peltatum Hall, 1847. The status of various Proterozoic and Phanerozoic taxa previously referred to porpitids is also briefly considered. To verify that the specimens were not dubio- or pseudofossils, elemental mappin...

  14. DIGITAL NARRATIVES AS MIGRATION HISTORICAL SOURCES: CASE STUDY ON ENGLISH-SPEAKING EXPATRIATES IN URUGUAY.

    OpenAIRE

    Bresciano, Juan Andrés; Universidad de la República, Uruguay

    2012-01-01

    En años recientes se ha incrementado la cifra de extranjeros en Uruguay. Algunos de ellos no responden al perfil tradicional del inmigrante, sino al del expatriado que, procedente del mundo desarrollado, se comporta como un nómade posmoderno. Dentro de ese complejo universo de extranjeros, los anglohablantes demuestran un notable dinamismo que se plasma en un espectro variado de registros. En este contexto, las narrativas digitales se constituyen en fuentes primarias para el estudio de la exp...

  15. More Time is Better : An Evaluation of the Full-time School Program in Uruguay

    OpenAIRE

    Cerdan-Infantes,Pedro; Vermeersch, Christel

    2007-01-01

    This paper estimates the impact of the full-time school program in Uruguay on standardized test scores of 6th grade students. The program lengthened the school day from a half day to a full day, and provided additional inputs to schools to make this possible, such as additional teachers and construction of classrooms. The program was not randomly placed, but targeted poor urban schools. Us...

  16. More time is better : an evaluation of the fulltime school program in Uruguay

    OpenAIRE

    Cerdan-Infantes,Pedro; Vermeersch, Christel

    2007-01-01

    This paper estimates the impact of the full-time school program in Uruguay on standardized test scores of 6th grade students. The program lengthened the school day from a half day to a full day, and provided additional inputs to schools to make this possible, such as additional teachers and construction of classrooms. The program was not randomly placed, but targeted poor urban schools. Using propensity score matching, the authors construct a comparable group of schools, and show that student...

  17. Phylodynamics of HIV-1 Circulating Recombinant Forms 12_BF and 38_BF in Argentina and Uruguay

    Directory of Open Access Journals (Sweden)

    Mangano Andrea

    2010-03-01

    Full Text Available Abstract Background Although HIV-1 CRF12_BF and CRF38_BF are two epidemiologically important recombinant lineages circulating in Argentina and Uruguay, little is known about their population dynamics. Methods A total of 120 "CRF12_BF-like" and 20 "CRF38_BF-like" pol recombinant sequences collected in Argentina and Uruguay from 1997 to 2009 were subjected to phylogenetic and Bayesian coalescent-based analyses to estimate evolutionary and demographic parameters. Results Phylogenetic analyses revealed that CRF12_BF viruses from Argentina and Uruguay constitute a single epidemic with multiple genetic exchanges among countries; whereas circulation of the CRF38_BF seems to be confined to Uruguay. The mean estimated substitution rate of CRF12_BF at pol gene (2.5 × 10-3 substitutions/site/year was similar to that previously described for subtype B. According to our estimates, CRF12_BF and CRF38_BF originated at 1983 (1978-1988 and 1986 (1981-1990, respectively. After their emergence, the CRF12_BF and CRF38_BF epidemics seem to have experienced a period of rapid expansion with initial growth rates of around 1.2 year-1 and 0.9 year-1, respectively. Later, the rate of spread of these CRFs_BF seems to have slowed down since the mid-1990s. Conclusions Our results suggest that CRF12_BF and CRF38_BF viruses were generated during the 1980s, shortly after the estimated introduction of subtype F1 in South America (~1975-1980. After an initial phase of fast exponential expansion, the rate of spread of both CRFs_BF epidemics seems to have slowed down, thereby following a demographic pattern that resembles those previously reported for the HIV-1 epidemics in Brazil, USA, and Western Europe.

  18. Hacia una Rehabilitación Psicosocial Integral en el Uruguay.

    Directory of Open Access Journals (Sweden)

    Mariana Villar

    2011-11-01

    Full Text Available El artículo trata sobre la Rehabilitación Psicosocial para personas con trastorno mental severo en Uruguay. Se expone la concepción del modelo de Rehabilitación Psicosocial integral a nivel de política pública nacional. Se presentan datos sobre la situación actual de la atención en salud en este tipo de abordajes, así como perspectivas futuras.

  19. Political strike. Viability analysis in the legal system of the Republic of Uruguay

    Directory of Open Access Journals (Sweden)

    Eduardo Goldstein

    2014-06-01

    Full Text Available Several motivations have led unionized workers to exercise this fundamental right recognized under Article 57 of the Constitution of the Republic of Uruguay. This right has been the subject doctrine discussions by legal scholars when strikes are considered atypical. In this paper, the viability of strikes when they are motivated by politics is discussed, as well as the response of the national legal system to this phenomenon.

  20. Two new species of Chaco Tullgren from the Atlantic coast of Uruguay (Araneae, Mygalomorphae, Nemesiidae

    Directory of Open Access Journals (Sweden)

    Laura Montes de Oca

    2013-10-01

    Full Text Available We describe two new species of the nemesiid spider genus Chaco from Rocha Province, Uruguay. These new species are diagnosed based on genital morphology, male tibial apophysis spination, and burrow entrance. We test cospecificity of one species, C. costai, via laboratory mating experiments. The new species are diagnosed and illustrated and habitat characteristics, and capture behavior are described. We conduct a cladistic analysis based on a previously published morphological character matrix that now includes the newly described species.

  1. Digenetic trematodes parasitic on Engraulis anchoita (Pisces: Engraulidae) from Argentina and Uruguay.

    Science.gov (United States)

    Timi, J T; Martorelli, S R; Sardella, N H

    1999-01-01

    A total of 2,086 specimens of Engraulis anchoita Hubbs et Marini (Pisces: Engraulidae), from waters off Argentina and Uruguay were examined for parasitic digeneans. Four species of digeneans were found, Parahemiurus merus (Linton, 1910) (adult) in the stomach; Lecithochirium microstomum Chandler, 1935 (non-ovigerous and ovigerous juveniles) in the swimbladder; Cardiocephaloides sp. (metacercaria) in the eyes and Rhipidocotyle sp. (metacercaria) in the musculature. These four species are recorded for the first time as parasites of E. anchoita.

  2. Information skills in the National Reading Plan of Uruguay: Actions for social inclusion

    OpenAIRE

    Ceretta,María Gladys

    2015-01-01

    It is described strategies that have been implemented to promote the development of information skills in the National Reading Plan of Uruguay that is under the responsability of the Ministry of Education and Culture, as a National Public Policy. They are aimed at vulnerable socio-economic contexts and help to the process of training reading promoters. We analyze and evaluate the experiences done with target populations that do not belong to the formal education area, especially those who are...

  3. Two new species of Chaco Tullgren from the Atlantic coast of Uruguay (Araneae, Mygalomorphae, Nemesiidae)

    Science.gov (United States)

    de Oca, Laura Montes; Pérez-Miles, Fernando

    2013-01-01

    Abstract We describe two new species of the nemesiid spider genus Chaco from Rocha Province, Uruguay. These new species are diagnosed based on genital morphology, male tibial apophysis spination, and burrow entrance. We test cospecificity of one species, Chaco costai,via laboratory mating experiments. The new species are diagnosed and illustrated and habitat characteristics, and capture behavior are described. We conduct a cladistic analysis based on a previously published morphological character matrix that now includes the newly described species. PMID:24146579

  4. Labor Informality and the Incentive Effects of Social Security: Evidence from a Health Reform in Uruguay

    OpenAIRE

    Marcelo Bérgolo; Guillermo Cruces

    2011-01-01

    This paper studies the incentive effects of social security benefits on labor market informality following a policy reform in Uruguay. The reform extended health benefits to dependent children of private sector salaried workers, and thus altered the incentive structure of holding formal jobs within the household. The identification strategy of the reform¿s effects relies on a comparison between workers with children (affected by the reform) and those without children (unaffected by the reform...

  5. Latin American special project: kidney health cooperation project between Uruguay and Bolivia.

    Science.gov (United States)

    Sola, Laura; Plata-Cornejo, Raúl; Fernández-Cean, Juan

    2015-01-01

    Uruguay and Bolivia are two countries that show heterogenicity of the Latin American region, including the national income, the expenditure on health and the services for renal care. In Bolivia, there is manpower shortage for renal care with only 5 nephrologists per million people (pmp) and the prevalence of patients on dialysis is only 200 pmp. This is much lower than the mean prevalence rate of renal replacement therapy for Latin America as a whole. Uruguay on the other hand has more dedicated renal resources with 50 nephrologists pmp, and renal replacement therapy is provided to ~ 1,000 dialysis patients pmp. In November 2012, a collaborative project financed by the Uruguayan International Cooperation Agency was signed by both the Uruguay and Bolivia Ministries of Health, and the goal was to develop a comprehensive program for the prevention and management of all stages of chronic kidney disease (CKD) in Bolivia. The specific objectives were to: a) promote renal healthcare in the primary healthcare setting, b) identify kidney disease in populations at risk, and c) optimize patient care at all stages of CKD, including dialysis and transplantation supported with a national ESRD registry in Bolivia. As a first step, delegates from the Bolivian Health Ministry, visited Uruguay in April 2014, primarily to strengthen the development of tools required for developing and maintaining a national registry. In addition, during this visit, a meeting with the president of the Latin American Society of Nephrology and Hypertension (SLANH) culminated in designing a training program for peritoneal dialysis. This highly cooperative relationship is advancing the prevention and care of CKD in Bolivia and may serve as a model for international approaches to advance system level CKD care in countries with limited healthcare resources.

  6. Discussions on the sedimentary-tectonic event and tectonic setting of the North Tarim Basin in Cryogenian-Cambrian

    Science.gov (United States)

    Zhou, X. B.; Li, J. H.; Li, W. S.

    2012-04-01

    Across the Tarim Basin, limited surface outcrops of Cryogenian to Cambrian sedimentary succession are completely exposed in the vicinity of Aksu area(Northwest Tarim), Kuruktag(Northeast Tarim)and Southwest Tarim, thus provides a unique, well preserved and accessible means by which to study the early development of the north Tarim Basin. Based on the field geological investigation in the northwestern and northeastern of Tarim Basin, with the referencing of paleomagnetism mapping and previous research, basin evolution process in Cryogenian-Cambrian is discussed according to sedimentary-tectonic event and other evidences. The major lithological types of Cryogenian-Cambrian system in Northeast Tarim are: tillite, clastic rocks(rich in organic matter) and carbonate ,with interbeds of volcanic rocks while in Northwest Tarim, the calstic rocks and carbonate are the common rock type, with tillite and volcanic interbeds in a small amount. The north margin of Tarim Block, which was a part of Rodinia supercontinent, neighboring the northwestern margin of Australia, was deeply rifted in Cryogenian-Ediacaran and developed into two rifts in the northwestern and northeastern margin, while formed a thick layer of the rift-passive margin deposits and the layer in the northwestern rift was not completely developed as the northeastern. The deepest rift-passive magin sediment which can be observed is Cryogenian-Middle Ordovician strata, and the period can be divided into Cryogenian faulted period (supercontinent rifting stage) and Ediacaran-Middle Ordovician subsidence period (plate drifting stage).

  7. Ichnologic evidence of a Cambrian age in the southern Amazon Craton: Implications for the onset of the Western Gondwana history

    Science.gov (United States)

    Santos, Hudson P.; Mángano, M. Gabriela; Soares, Joelson L.; Nogueira, Afonso C. R.; Bandeira, José; Rudnitzki, Isaac D.

    2017-07-01

    Colonization of the infaunal ecospace by burrowing bilaterians is one of the most important behavioral innovations during the Ediacaran-Cambrian transition. The establishment of vertical burrows by suspension feeders in high-energy nearshore settings during Cambrian Age 2 is reflected by the appearance of the Skolithos Ichnofacies. For the first time, unquestionable vertical burrows typical of the Skolithos Ichnofacies, such as Skolithos linearis, Diplocraterion parallelum and Arenicolites isp., are recorded from nearshore siliciclastic deposits of the Raizama Formation, southeastern Amazon Craton, Brazil. Integration of ichnologic and sedimentologic datasets suggests that these trace fossils record colonization of high-energy and well-oxygenated nearshore sandy environments. Chronostratigraphically, the presence of these vertical burrows indicates an age not older than early Cambrian for the Raizama Formation, which traditionally has been regarded as Ediacaran. Therefore, the Raizama ichnofauna illustrates the advent of modern Phanerozoic ecology marked by the Agronomic Revolution. The discovery of the Skolithos Ichnofacies in these shallow-marine strata suggests possible connections between some central Western Gondwana basins.

  8. Sequence stratigraphy of the Middle Cambrian Daegi Formation (Korea), and its bearing on the regional stratigraphic correlation

    Science.gov (United States)

    Sim, Min Sub; Lee, Yong Il

    2006-10-01

    The sediments that comprise the Middle Cambrian Daegi Formation in eastern central Korea are interpreted to have been deposited in a carbonate ramp setting. The Daegi Formation consists of nine lithofacies; argillaceous rock, ribbon rock, oolitic limestone, skeletal limestone, microbial limestone, intraclastic limestone, micritic limestone, bioturbated limestone and crystalline limestone, which are grouped into three facies associations presenting, from base up, outer ramp, grain shoal and inner ramp facies associations. Two depositional sequences can be distinguished in the Daegi Formation. Sequence 1 in the lower part of the Daegi Formation comprises a lower transgressive systems tract (TST) and an upper highstand systems tract (HST). The TST consists of terrigenous deposits with subordinate limestones, while the HST contains various types of limestone. Sequence 2 comprises the upper half of the Daegi Formation and was deposited during a TST. The sequence stratigraphic analysis of the Daegi Formation suggests that the sediments were deposited during one 3rd-order sea-level change, during the middle to late Middle Cambrian. The sequence stratigraphic framework of the Daegi Formation can be excellently correlated with coeval deposits in North China, the Zhangxia and the lower part of the overlying Gushan formations, which belong to the same tectonic block as the Korean Peninsula, the Sino-Korean Block (SKB). The almost identical sequence stratigraphic frameworks in two separate basins suggest that the sequence stratigraphic development on the SKB was mainly influenced by eustatic changes during the Middle Cambrian.

  9. Pan African Collisional Tectonics Along the Moroccan West African Craton Continued to Ediacaran-Cambrian Boundary

    Science.gov (United States)

    Hefferan, K. P.; Samson, S. D.; Rice, K.; Soulaimani, A.

    2016-12-01

    Precision geochronologic dating and field mapping in the Anti-Atlas Mountains of Morocco document a Neoproterozoic Pan African orogenic cycle consisting of three distinct orogenic events: Iriri-Tichibanine orogeny (760-700 Ma), Bou Azzer orogeny (680-640 Ma) and the WACadomian orogeny (620 Ma to either 555 or 544 Ma). The Iriri-Tichibanine and Bou Azzer orogenies involved northward directed subduction beneath island arc volcanic terranes. These orogenic events generated calc-alkaline magmatism and supra-subduction zone ophiolites exposed in the Bou Azzer and Siroua erosional inliers. The WACadomian orogeny involved subduction and collision of the Cadomia arc complex with the West African Craton and generation of clastic sedimentary basins. The termination of the WACadomian orogeny has been the subject of debate as calc-alkaline to high K magmatism and folding continued to 544 Ma: Was 620-544 Ma calc-alkaline to high K magmatism and clastic basin development due to a) continental rift basin tectonics or b) southward directed subduction and collisional tectonics with associated back arc basin tectonism? We present field and geochemical data supporting the continuation of subduction-collisional tectonics to the Ediacaran-Cambrian boundary 544 Ma. Field mapping in the Central Anti-Atlas (Agadir Melloul) clearly documents an angular unconformity between Ouarzazate Group and Adoudounian limestones (N 30°31'28.91", W07°48'29.12"). Volcaniclastic rocks of Ouarzazate Group (615-545 Ma) are clearly folded and unconformably overlain by Adoudou Formation (541-529 Ma) limestones to the north. Geochemical discrimination diagrams on Latest Neoproterozoic calc-alkaline to high K igneous rocks throughout the Anti-Atlas plot in subduction and collisional arc magma domains. Back arc basin tectonism is likely responsible for localized extensional basins but continental rift tectonics and passive margin sedimentation did not begin in the Anti-Atlas Mountains until Early

  10. Environmental upheavals of the Ediacaran period and the Cambrian “explosion” of animal life

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    Grant M. Young

    2015-07-01

    Full Text Available The second half of the Ediacaran period began with a large impact – the Acraman impact in South Australia, which was accompanied by a negative δ13Ccarb anomaly and an extinction-radiation event involving acritarchs. A few million years later (∼570 Ma? there was a second, deeper and longer-lived world-wide δ13Ccarb anomaly (the Shuram anomaly which coincides with extinction of the acanthomorphic acritarchs. Wide distribution of the Shuram event is exemplified by stratigraphic sections from South Australia, Oman, southern California and South China. The widespread anomaly has been tentatively attributed to a marine impact. During recovery from the Shuram event the enigmatic Ediacaran biota achieved its zenith, only to be extirpated and replaced by a polyphyletic assemblage of shelly animals in what is known as the Cambrian “explosion”. This extinction-radiation cycle was preceded by glaciation, another δ13Ccarb excursion and the highest 87Sr/86Sr values known from marine carbonates. These high Sr ratios have been linked to weathering of extensive tracts of continental crust that were elevated during amalgamation of the supercontinent Gondwana. Introduction of essential nutrients to the oceans would have promoted biological production of oxygen and provided P and Ca for the important skeletonization that characterizes the Cambrian “explosion” and caused a quantum leap in the preservation potential of animal remains. Turbulent events of the last 50 million years of Precambrian time include three glaciations, two large impacts and a massive orogenic episode. These dramatic environmental upheavals are held responsible for three consecutive extinction-radiation cycles that culminated in the appearance of a diverse array of shelly fossils. Various lines of evidence suggest that the metazoans have deep roots so that they too may have been subjected to the environmental pressures of the late Ediacaran period clearly illustrated by

  11. Sedimentary mode and reservoir distribution of the Cambrian carbonate & evaporate paragenesis system in the Sichuan Basin

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    Anna Xu

    2016-11-01

    Full Text Available The Cambrian carbonate & evaporite paragenesis system in the Sichuan Basin is made up of the Longwangmiao, Gaotai and Xixiangchi Fms. So far, great breakthrough has been made only in the Longwangmiao Fm instead of the latter two, and the Anyue Gasfield was discovered in the center of this basin. In this paper, therefore, the Cambrian carbonate & evaporite paragenesis system in the Sichuan Basin was analyzed in terms of its structural–sedimentary setting, sequence stratigraphic framework, sedimentary facies and the distribution of evaporites by using various geologic, logging and seismic data. Then, the geological model of sedimentary facies was established and the distribution range of favorable reservoirs was predicted. Based on these studies, the following results are obtained. Firstly, the palaeotectonic framework is characterized by the style of “one depression between two uplifts” in the setting of a large SE dipping slope, and the stratigraphic filling is in the structure of “onlapping at the bottom and truncation at the top” which is thin in the west and thick in the east. Secondly, three third-order sequence cycles which, on the whole, become shallow upward are developed from bottom to top, and gypsum-salt rocks are mainly located at the high system tract (HST of third-order sequences and concentrated in the Wanzhou–Yibin sag. Thirdly, the geological model of sedimentary facies is composed of three major sedimentary structural layers from bottom to top, namely the evaporative carbonate ramp, the evaporative diamictic restricted platform and the evaporative restricted platform. The sedimentary environment changes from the open to the closed and the penesaline for a long time, and then back to the open. The distribution of shoals changes from the pattern of “dual banks” in a large area to more scattered shoals and banded shoals, while the evaporative lagoon and tidal flat shrink. Fourthly, the reservoir distribution is

  12. Grupo Escolar Solferino Colombes-Francia

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    Tessier, J.

    1978-11-01

    Full Text Available This school complex is divided into three different facilities, one for boys, one for girls and a kindergarten, all in a two-storey Steel structure building. The dining halls and kitchen are located in a separate building connected to the main one, the toilets and the medical department, being a part of the connecting area. The design of the entire complex is highly decorative and yet, very functional.

    Este Grupo Escolar está formado por tres escuelas destinadas, cada una de ellas, a niñas, niños y jardín de infancia. Se halla instalado en un edificio de dos plantas, realizado a base de estructura metálica. Los comedores y la cocina se han situado en un edificio anexo. En la zona de comunicación entre los dos edificios se encuentran los lavabos y el departamento médico. Todo el conjunto se ha desarrollado de una manera muy decorativa y, a la vez, cómoda.

  13. A new genus and species of opisthogonimid (Digenea) of Liophis anomalus (Serpentes: Colubridae) from Uruguay.

    Science.gov (United States)

    Volonterio, Odile; Baletta, Silvana; Meneghel, Melitta

    2006-10-01

    During a study on the helminth fauna of Liophis anomalus specimens deposited in the Reptile Collection of the Secci6n Zoología Vertebrados, Facultad de Ciencias, Uruguay, a new genus of Opisthogoniminae was found. Paracotyletrema n. gen. is described from the buccal cavity and esophagus of specimens from Departamento de Flores, Uruguay. This new genus differs from the other 2 Opisthogoniminae, Opisthogonimus and Westella, by having much smaller body size; maximum width at level of posterior end of oral sucker; oral sucker length more than one-fourth of body length; oral sucker and acetabulum separated by a distance of about the diameter of pharynx; cirrus pouch length more than half of body length; and testes in completely coincident zones. The type and only species, Paracotyletrema poncedeleoni n. gen., n. sp., is defined by the following diagnostic characters: mean oral sucker length one-third to one-half of body length; cirrus pouch of about body length, contorted, mainly acetabular; large, round testes in nearly adjacent fields, and an ovary nearly adjacent to right testis. Besides the type locality, Paracotyletrema poncedeleoni has been found in L. anomalus specimens from the Departamentos of Artigas and Treinta y Tres; therefore, it has a widespread distribution in Uruguay.

  14. Brief Counseling on Secondhand Smoke Exposure in Pregnant Women in Argentina and Uruguay.

    Science.gov (United States)

    Alemán, Alicia; Morello, Paola; Colomar, Mercedes; Llambi, Laura; Berrueta, Mabel; Gibbons, Luz; Buekens, Pierre; Althabe, Fernando

    2016-12-29

    Argentina and Uruguay have a high prevalence of smoking during pregnancy, as well as of secondhand smoke (SHS) exposure. In this secondary analysis of a trial to implement brief smoking cessation counseling during antenatal care in Argentina and Uruguay, we aim to evaluate the effects of the intervention on the rates of self-reported SHS exposure at home and at work, and on attitudes recalled by non-smoker women enrolled in the intervention group compared with the control group. We randomly assigned (1:1) 20 antenatal care clusters in Argentina and Uruguay to receive a multifaceted intervention to implement brief smoking cessation counseling, which also included questions and counseling regarding SHS exposure, or to receive the standard of care. There was not a statistically significant difference between groups of the intervention's effect (reduction of exposure to SHS) on any of the three exposure outcome measures (exposure at home, work or other indoor areas) or on the attitudes of women regarding exposure (avoiding breathing SHS and having rooms where smoking is forbidden). This analysis shows that we should not expect reductions in SHS exposure with this modest intervention alone. To achieve such reductions, strategies engaging partners and other household members may be more effective.

  15. O Joana grupo de teatro e o teatro de rua

    OpenAIRE

    Bragança, Suzete

    2015-01-01

    A dissertação tem como objeto de investigação o Teatro de Rua e o Grupo de Teatro Joana. A primeira parte refere-se ao Teatro de Rua da segunda metade do século XX, nomeando Grupos como Living Theatre, Bread and Puppet e Odin Teatret, que se revelaram de grande importância para a história desta Companhia portuguesa. A segunda parte incide sobre o Teatro Joana e o seu projeto artístico, enquanto Grupo de Teatro para a Infância e Juventude e, essencialmente, como Grupo de Teatro de Rua. ...

  16. GRUPOS DE INVESTIGACIÓN DE LA FACULTAD DE CIENCIAS

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    VICTOR IGNACIO LÓPEZ RÍOS

    2013-07-01

    Full Text Available Esta sección, dedicada a dar a conocer los grupos de investigacion de la Facultad, presentará un reporte del grupo de investigación de la Escuela de Física: Láseres y Espectroscopía óptica. Por su relevancia se ha decidido dar un espacio para la descripción de este grupo de investigación, sus líneas de investigación, premios obtenidos y apreciaciones de los integrantes del grupo.

  17. Defending strong tobacco packaging and labelling regulations in Uruguay: transnational tobacco control network versus Philip Morris International.

    Science.gov (United States)

    Crosbie, Eric; Sosa, Particia; Glantz, Stanton A

    2017-03-23

    Describe the process of enacting and defending strong tobacco packaging and labelling regulations in Uruguay amid Philip Morris International's (PMI) legal threats and challenges. Triangulated government legislation, news sources and interviews with policy-makers and health advocates in Uruguay. In 2008 and 2009, the Uruguayan government enacted at the time the world's largest pictorial health warning labels (80% of front and back of package) and prohibited different packaging or presentations for cigarettes sold under a given brand. PMI threatened to sue Uruguay in international courts if these policies were implemented. The Vazquez administration maintained the regulations, but a week prior to President Vazquez's successor, President Mujica, took office on 1 March 2010 PMI announced its intention to file an investment arbitration dispute against Uruguay in the International Centre for the Settlement of Investment Disputes. Initially, the Mujica administration announced it would weaken the regulations to avoid litigation. In response, local public health groups in Uruguay enlisted former President Vazquez and international health groups and served as brokers to develop a collaboration with the Mujica administration to defend the regulations. This united front between the Uruguayan government and the transnational tobacco control network paid off when Uruguay defeated PMI's investment dispute in July 2016. To replicate Uruguay's success, other countries need to recognise that strong political support, an actively engaged local civil society and financial and technical support are important factors in overcoming tobacco industry's legal threats to defend strong public health regulations. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  18. Bilaterians of the Precambrian—Cambrian transition and the annelid—arthropod relationship

    Science.gov (United States)

    Valentine, James W.

    1989-01-01

    The Late Proterozoic fossil record contains the remains of animals that may represent a grade of organization not found among living metazoans. These forms were segmented and large enough to require a hemocoel, yet evidently were not capable of forming penetrating burrows, which are essentially absent from contemporaneous sediments containing locally common but chiefly horizontal trace fossils. As has been noted, there is no evidence that Late Proterozoic invertebrates possessed a coelom suited for peristaltic burrowing. Therefore, the annelidan body plan had probably not appeared. It is not implausible, however, that coelomic spaces in the form of ducts or organ sacs were present in Late Proterozoic segmented forms. Uniramians, some of which employ the hemocoel hydrostatically in lobopodal locomotion, may be allied to segmented hemocoelic forms not unlike sprigginids. Coelomic spaces may have been exploited in some protoarthropod lineages to enhance pedal-wave locomotion, but probably there are no eucoelomic forms in arthropodan ancestry. Annelids may represent an early divergent branch of seriated worms, perhaps rather nemertine-like at first, that developed eucoelomic compartments only in Cambrian time. The extinct grade is most likely to have arisen from flatworm-like ancestors. Of all the proposed phylogenies examined, only that of Manton closely anticipates these interpretations of the early metazoan fossil record. Images PMID:16594022

  19. Differing styles of stromatolite diagenesis: Implication for stromatolite origin and diagenesis of Upper Cambrian peritidal carbonates

    Energy Technology Data Exchange (ETDEWEB)

    Glumac, B.; Walker, K.R. (Univ. of Tennessee, Knoxville, TN (United States). Dept. of Geological Sciences)

    1994-03-01

    Stromatolite morphology and the characteristics of associated sediments are commonly used to discern environments of stromatolite formation. In this study, the authors suggest that study of stromatolite diagenesis allows a better understanding of the origin of stromatolites and the diagenesis of carbonate sediments. The Upper Cambrian Maynardville Formation of the Conasauga Group in Tennessee consists of subtidal and peritidal carbonate lithologies. These contain several types of cryptalgal structures: (1) cryptalgal (microbial) laminites; (2) laterally linked hemispheroidal stromatolites; (3) stacked hemispheroidal stromatolites; (4) columnar stromatolites; (5) digitate stromatolites; and (6) thrombolites. The succession from 1 to 6 above represents increasing water turbulence from supratidal to upper subtidal depositional environments. Stromatolites form by two major mechanisms: (1) the trapping of sediment grains by microbial mats; and (2) the calcification of cyanobacterial sheaths under favorable environmental conditions. These two mechanisms of formation can be discerned in the fossil record based on stromatolite response to diagenesis. Early calcification by cyanobacteria reduces the susceptibility of stromatolites to dolomitization. Biogenic calcification was not pervasive during formation of dolomitized stromatolites due to conditions of periodic emergence and increased salinity. Under these conditions, dolomitization was an important diagenetic process that preceded early calcification. The authors interpret dolomitization to be penecontemporaneous with deposition. The results of this study confirm that differing styles of stromatolite diagenesis can be used as indicators of stromatolite origin and to aid in reconstructing the diagenetic processes in peritidal carbonates.

  20. Cambrian cinctan echinoderms shed light on feeding in the ancestral deuterostome.

    Science.gov (United States)

    Rahman, Imran A; Zamora, Samuel; Falkingham, Peter L; Phillips, Jeremy C

    2015-11-07

    Reconstructing the feeding mode of the latest common ancestor of deuterostomes is key to elucidating the early evolution of feeding in chordates and allied phyla; however, it is debated whether the ancestral deuterostome was a tentaculate feeder or a pharyngeal filter feeder. To address this, we evaluated the hydrodynamics of feeding in a group of fossil stem-group echinoderms (cinctans) using computational fluid dynamics. We simulated water flow past three-dimensional digital models of a Cambrian fossil cinctan in a range of possible life positions, adopting both passive tentacular feeding and active pharyngeal filter feeding. The results demonstrate that an orientation with the mouth facing downstream of the current was optimal for drag and lift reduction. Moreover, they show that there was almost no flow to the mouth and associated marginal groove under simulations of passive feeding, whereas considerable flow towards the animal was observed for active feeding, which would have enhanced the transport of suspended particles to the mouth. This strongly suggests that cinctans were active pharyngeal filter feeders, like modern enteropneust hemichordates and urochordates, indicating that the ancestral deuterostome employed a similar feeding strategy. © 2015 The Author(s).

  1. The Vakkejokk Breccia: An Early Cambrian proximal impact ejecta layer in the North-Swedish Caledonides

    Science.gov (United States)

    Ormö, J.; Nielsen, A. T.; Alwmark, C.

    2017-04-01

    The ≤27 m thick Vakkejokk Breccia is intercalated in autochthon Lower Cambrian along the Caledonian front north of Lake Torneträsk, Lapland, Sweden. The spectacular breccia is here interpreted as a proximal ejecta layer associated with an impact crater, probably 2-3 km in size, located below Caledonian overthrusts immediately north of the main breccia section. The impact would have taken place in a shallow-marine environment 520 Ma ago. The breccia comprises i) a strongly disturbed lower polymict subunit with occasional, in themselves brecciated, crystalline mega-clasts locally exceeding 50 m surrounded by contorted sediments; ii) a middle, commonly normally graded, crystalline-rich, polymict subunit, in turn locally overlain by iii) a thin fine-grained quartz sandstone, mobilization of the sediments. The middle subunit and the uppermost quartz sandstone are considered resurge deposits. The top conglomerate may be caused by subsequent wave reworking and slumping of material from the elevated rim. Quartz grains showing planar deformation features are present in the graded polymict subunit and the upper sandstone, that is, the inferred resurge deposits.

  2. Cadomian volcanosedimentary complexes across the Ediacaran-Cambrian transition of the Eastern Pyrenees, southwestern Europe

    Science.gov (United States)

    Padel, Maxime; Álvaro, J. Javier; Casas, Josep Maria; Clausen, Sébastien; Poujol, Marc; Sánchez-García, Teresa

    2017-11-01

    The volcanism hosted by the Ediacaran-Terreneuvian Canaveilles Group of the Eastern Pyrenees displays two distinct geochemical affinities: (1) metabasites of the Nyer and Olette formations reflect the emplacement of a tholeiitic magmatism linked to extensional conditions, whereas (2) subsequent felsic and calc-alkaline magmatic rocks marking the top of the Olette Formation and forming the overlying Fabert and Finestrelles members represent Cadomian magmatic events. Based on U-Pb zircon dating constraints, palaeotopographic relationships linked to onlap geometries and distance from vent sources, three volcanosedimentary edifices can be distinguished, the so-called Tregurà (ca. 565-552 Ma), Cap de Creus (ca. 558 Ma) and Coll d'Ares (ca. 542-532 Ma) edifices. The top of their palaeoreliefs recorded locally the nucleation of centres of microbial carbonate productivity (Puig Sec Member) linked to synsedimentary tilting and karstification. Throughout West Gondwana, the presence of carbonate production across the Ediacaran-Cambrian transition is exclusively located in back-arc settings (Central-Iberian Zone) and areas far from the Cadomian subduction trench and devoid of significant terrigenous input, such as those reported in the Eastern Pyrenees and the neighbouring Montagne Noire.

  3. Experimental taphonomy and the anatomy and diversity of the earliest fossil vertebrates (Chengjiang Biota, Cambrian, China)

    Science.gov (United States)

    Purnell, Mark; Gabbott, Sarah; Murdock, Duncan; Cong, Peiyun

    2016-04-01

    The oldest fossil vertebrates are from the Lower Cambrian Chengjiang biota of China, which contains four genera of fish-like, primitive vertebrates: Haikouichthys, Myllokunmingia, Zhongjianichthys and Zhongxiniscus. These fossils play key roles in calibrating molecular clocks and informing our view of the anatomy of animals close to the origin of vertebrates, potentially including transitional forms between vertebrates and their nearest relatives. Despite the evident importance of these fossils, the degree to which taphonomic processes have affected their anatomical completeness has not been investigated. For example, some or all might have been affected by stemward slippage - the pattern observed in experimental decay of non-biomineralised chordates in which preferential decay of synapomorphies and retention of plesiomorphic characters would cause fossil taxa to erroneously occupy more basal positions than they should. This hypothesis is based on experimental data derived from decay of non-biomineralised chordates under laboratory conditions. We have expanded this analysis to include a broader range of potentially significant environmental variables; we have also compared and combined the results of experiments from several taxa to identify general patterns of chordate decay. Examination of the Chengjiang vertebrates in the light of these results demonstrates that, contrary to some assertions, experimentally derived models of phylogenetic bias are applicable to fossils. Anatomical and phylogenetic interpretations of early vertebrates that do not take taphonomic biases into account risk overestimating diversity and the evolutionary significance of differences between fossil specimens.

  4. The hard parts of the Cambrian Explosion: a palaeobiological approach to testing the 'biomineralization toolkit' hypothesis

    Science.gov (United States)

    Murdock, Duncan

    2017-04-01

    The Cambrian Explosion was the most dramatic event in the history of animal life on Earth, yet the processes underlying it are poorly understood not least the role of biomineralization in driving this fundamental evolutionary episode. One explanation for this event, based on observations on the developmental and molecular biology of modern organisms, is that all animals inherited a common 'toolkit' of genes, independently co-opted to similar tasks, including building skeletons. This initially imprecise 'toolkit' was subsequently honed by the acquisition of more and more complex gene regulatory networks. This predicts that animal skeletons, and by inference their organic frameworks, should exhibit a higher degree of morphological plasticity at their origin than later in their evolutionary history - a prediction that is virtually untested. Here I set out a new approach to testing this prediction, by quantifying the phenotypic variation displayed in fossil remains of some of the earliest animal skeletons, over multiple scales from microscopic variations in their component biominerals to how skeletons themselves are put together. This approach will provide direct evidence to test the importance of the genetic basis of the skeleton in the origin of the animals, making a significant contribution to our understanding of this crucial event in the history of life on Earth, including the evolution of our own ancestors.

  5. High-precision Temporal Calibration of the Early Cambrian Biotic and Paleoenvironmental Records: New U-Pb Geochronology from Eastern Yunnan, China.

    Science.gov (United States)

    Tsukui, K.; Ramezani, J.; Zhu, M.; Maloof, A. C.; Porter, S.; Moore, J.; Eddy, M. P.; Bowring, S. A.

    2016-12-01

    The Terreneuvian Epoch of the early Cambrian marks the global diversification of early animal life, as well as major perturbations to Earth's geochemical cycles. Understanding possible links between biotic evolution (e.g., emergence of skeletal animals) and the recognized changes in ocean chemistry requires a high fidelity chronostratigraphic framework for the early Cambrian records. One such chronostratigraphy was built by mapping local early Cambrian carbon isotope profiles onto a U-Pb age-calibrated marine carbonate δ13C record from Morocco, assuming global synchroneity of the observed δ13C trends. Here we present a direct test of this assumption using high-precision U-Pb geochronology (CA-ID-TIMS method) of ash beds from key lower Cambrian horizons throughout eastern Yunnan Province in South China. Preliminary age results from ash beds near the top of the Dengying Formation (Fm.) and the basal Daibu Member (Mb.) of the Zhujiaqing Fm. in multiple sections place the basal Cambrian negative δ13C excursion (BACE) in China at ca. 540.7-539.6 Ma. Our new U-Pb dates from the overlying Zhongyicun Mb. at the Meishucun and nearby sections improve significantly upon previous in situ U-Pb geochronology and constrain the onset of high-frequency δ13C oscillations in some sections to between 533.5 and 532.9 Ma. Most importantly, a new U-Pb date of ca. 526 Ma from the basal Shiyantou Fm. in the Xiaotan Section marks the termination of a >1 million year-long period of consistently positive (≥+4‰) δ13C values (ZHUCE) that is characteristic of many early Cambrian records worldwide. This date establishes a robust time correlation between ZHUCE in South China and its equivalent 5p excursion in Morocco and Siberia, and constrains the timing and duration of the largest positive δ13C anomalies in the Cambrian.

  6. Trabalho em grupo com enlutados Trabajo en grupo con enlutados Work group with bereaved

    Directory of Open Access Journals (Sweden)

    Melissa Pascoal

    2012-12-01

    Full Text Available A cada dia temos mais famílias vivenciando o luto gerado por homicídios, acidentes e violência, e isso tem causado alguns problemas psicológicos para as pessoas que estão nesta situação. Este artigo é um relato da experiência profissional vivida no Hospital e Maternidade Mauá com um grupo de autoajuda para pacientes em processo de luto, e seu objetivo é compartilhar a experiência e difundir este trabalho. Em 15 encontros pré-estruturados de acordo com a demanda apresentada pelo próprio grupo, foi possível trabalhar diversos temas relacionados à perda que influenciaram as participantes e ao mesmo tempo proporcionaram, além de conforto, uma possibilidade de identificação e troca, e consequentemente o ressurgimento da autoconfiança. Por meio da articulação da teoria com a prática, é evidenciado que o atendimento em grupo para enlutados é uma alternativa viável que trouxe resultados positivos e inspiradores e sua divulgação é importante para ampliar horizontes e criar novas possibilidades.Cada día tenemos más familias que experimentan el luto generado por homicidios, accidentes y violencia, esto ha causado algunos problemas psicológicos para las personas que se encuentran en esta situación. Este artículo es un relato de la experiencia profesional vivida en el Hospital de Mauá con un grupo de autoayuda para pacientes en el proceso de luto, y su objetivo es compartir la experiencia y difundir este trabajo. A través de quince reuniones preestructuradas de acuerdo con la demanda presentada por el propio grupo, fue posible trabajar diversos temas relacionados a la pérdida que influyeron a las participantes y al mismo tiempo proporcionaron, además de confort, una posibilidad de identificación y cambio, y consecuentemente el resurgimiento de autoconfianza. A través de la articulación de la teoría con la práctica, es evidenciado que la atención en grupo para enlutados es una alternativa viable que trajo resultados

  7. Transferência e psicoterapia de grupo Transferencia y psicoterapia de grupo Transference and group psychotherapy

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    Luiz Paulo de C. Bechelli

    2006-02-01

    Full Text Available No presente estudo, examinamos o conceito de transferência, focalizando suas peculiaridades no contexto grupal. A natureza da situação terapêutica e a ampla liberdade proporcionada ao paciente para abordar o material inconsciente, de acordo com seu próprio ritmo e dentro de um ambiente seguro e sem censura, estimula o estabelecimento gradual da transferência. Devido ao mecanismo de deslocamento, o psicoterapeuta e os participantes do grupo são percebidos não como são, com seus atributos reais, mas como objetos que suscitam emoções oriundas do mundo infantil, mais precisamente do acervo de influências afetivas profundas. Uma peculiaridade da situação de grupo em comparação com a psicoterapia individual é que, naquela modalidade, coexistem múltiplas transferências que os membros do grupo estabelecem entre si, potencializando uma gama de possibilidades de sentimentos. Ambas as modalidades guardam em comum o pressuposto de que os conflitos psíquicos que impeliram o paciente à busca de ajuda podem ser reduzidos ou mesmo suprimidos mediante a interpretação e a elaboração da transferência, que funcionam como procedimentos para a mudança no decorrer do processo terapêutico.En este estudio investigamos el concepto de la transferencia, enfocando sus peculiaridades en el contexto grupal. La naturaleza de la situación terapéutica y la amplia libertad proporcionada al paciente para abordar el material inconciente según su propio ritmo y dentro de un ambiente seguro y sin censura estimula el establecimiento gradual de la transferencia. Debido al mecanismo de desplazamiento, el psicoterapeuta y los participantes del grupo son percibidos no como son, con sus atributos reales, pero como objetos que suscitan emociones oriundas del mundo infantil, más precisamente del acervo de influencias afectivas profundas. Una peculiaridad de la situación de grupo en comparación con la psicoterapia individual es que, en aquella modalidad

  8. Gestión integrada de recursos hídricos en el Uruguay en el contexto internacional

    Directory of Open Access Journals (Sweden)

    Diana Margarita Míguez Caramés

    2015-12-01

    Full Text Available La necesidad de proteger el medio ambiente y en especial la cantidad y la calidad de las fuentes de agua dulce contra los efectos de las presiones naturales y antrópicas se ha vuelto cada vez más importante a nivel mundial. Para ello, no basta con aplicar tecnologías de extracción de agua y de depuración efectivas, sino que también se debería implementar sistemas de gestión participativos para alinear las actividades humanas hacia el desarrollo sostenible. La herramienta más idónea para realizarlo es la Gestión Integrada de Recursos Hídricos (GIRH mediante la cual se genera información sobre la que basar políticas de gestión ambiental y de provisión de agua potable y saneamiento equitativas, que contemplen las opiniones de todos los grupos de interés. En el caso de Uruguay, la Constitución de la República consagra el derecho de todos los habitantes del país al acceso al agua y al saneamiento. El proceso de implementación del sistema de GIRH se inició dándole participación a la ciudadanía a través de un referéndum, luego del cual los referentes en el tema de todos los sectores de la sociedad aconsejaron a nivel parlamentario, y el procesó derivó en la reglamentación de la ley del agua. Se consolidó así una estructura de gestión por cuencas hidrográficas basada en el ciclo hidrológico que se encuentra hoy en un grado de desarrollo que refleja la mejora continua de la institucionalidad de la gobernanza del agua. En esta revisión se releva el desarrollo de estos procesos tanto a nivel nacional como mundial y se propone una serie de herramientas y estrategias para hacer cada vez más eficiente la gobernanza.

  9. Assessing the impact of cigarette package health warning labels: a cross-country comparison in Brazil, Uruguay, and Mexico

    Science.gov (United States)

    Thrasher, James F; Villalobos, Victor; Szklo, André; Fong, Geoffrey T; Pérez, Cristina; Sebrié, Ernesto; Sansone, Natalie; Figueiredo, Valeska; Boado, Marcelo; Arillo-Santillán, Edna; Bianco, Eduardo

    2015-01-01

    Objective To assess the impact of different health warning labels (HWL). Material and Methods Data from the International Tobacco Control Survey (ITC Survey) were analyzed from adult smokers in Brazil, Uruguay and Mexico, each of which used a different HWL strategy (pictures of human suffering and diseased organs; abstract pictorial representations of risk; and text-only messages, respectively). Main outcomes were HWL salience and cognitive impact. Results HWLs in Uruguay (which was the only country with a HWL on the front of the package) had higher salience than either Brazilian or Mexican packs. People at higher levels of educational attainment in Mexico were more likely to read the text-only HWLs whereas education was unassociated with salience in Brazil or Uruguay. Brazilian HWLs had greater cognitive impacts than HWLs in either Uruguay or Mexico. HWLs in Uruguay generated lower cognitive impacts than the text-only HWLs in Mexico. In Brazil, cognitive impacts were strongest among smokers with low educational attainment. Conclusions This study suggests that HWLs have the most impact when they are prominent (i.e., front and back of the package) and include emotionally engaging imagery that illustrates negative bodily impacts or human suffering due to smoking. PMID:21243191

  10. Stable isotope (δ13Cker, δ13Ccarb, δ18Ocarb distribution along a Cambrian outcrop section in the eastern Tarim Basin, NW China and its geochemical significance

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    Hu Liu

    2017-01-01

    Full Text Available This study investigated the geochemical features of the lower Paleozoic strata of Yaerdang Mountain outcrop along with the core samples from well TD2∈ in the eastern Tarim Basin, NW China. The total organic carbon abundance, hydrocarbon-generating precursor biospecies, and stable isotope ratios of organics and carbonate (δ13Cker, δ13Ccarb and δ18Ocarb were comprehensively studied for their possible correlative constraints during sedimentary evolution. The results revealed that the δ13Cker (VPDB of Cambrian kerogens along the outcrop section varied from −34.6‰ to −28.4‰, indicating an increasing tendency from the lower Cambrian to the upper Cambrian. This was on the whole accompanied by the variation in the δ13Ccarb and δ18Ocarb along the profile, which might be associated with the changes in the sea level and also in the compositional variation of benthic and planktonic biomass. The large variation in the stable carbon isotope ratios up to 6‰ along the outcrop section reflected the heterogeneity of the Cambrian source rocks from the eastern Tarim Basin. Hence, the 13C-enriched crude oils from well TD2∈ might have been derived from a localized stratum of Cambrian source rocks. The results from this study showed the possibility of multiple source kitchens in the Cambrian–lower Ordovician portion of Tarim Basin.

  11. Population Structure, Life Strategies and Systematics of Phosphatocope Ostracods from the Middle Cambrian of Bornholm

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    I. Hinz-Schallreuter

    1998-01-01

    Full Text Available She Middle Cambrian Borregård Member of Bornholm which is the stratigraphical equivalent to the Baltoscandian Exsulans Limestone yielded a rich and comparatively diverse ostracod fauna in its upper part. It comprises eight species out of four genera. They belong to three known subfamilies that are redefined on the basis of special characters of the contact margin. An ontogenetic character unknown from typical ostracods is documented in several species: during early ontogeny the gestalt (l:h ratio develops constantly in becoming increasingly longer until the so-called ontogenetical turning point (OTP from which the direction of growth focusses on carapace height. This phenomenon may be explained by changes in body morphology. The Borregård association represents an ecologic community type differing from other yet recorded Middle Cambrian communities in the Baltoscandic region. Apart from Vestrogothia longispinosa which is a common faunal element in Baltoscandian ostracod faunas, the yet recorded species of Bidimorpha are unknown from other Baltoscandian occurrences. Vice versa, the known species of Bidimorpha described from Swedish occurrences have not been recognized in the rich Borregård community. Similarly, Falites insula and Hesslandona abdominalis may be of local significance, too, but the respective records from contemporaneous Swedish localities are insufficient in this respect, yet. Due to specific morphological adaptations, the four genera are assumed to represent different benthic life strategies. New taxa are: Bidimorpha arator n. sp., Bidimorpha labiator n. sp., Bidimorpha sexspinosa n. sp., Falites insula n. sp., Hesslandona abdominalis n. sp., Vestrogothia herrigi n. sp. and Vestrogothia minilaterospinata n. sp. Aus dem mittelkambrischen Borregård Member von Bornholm, einem zeitlichen Äquivalent des baltoskandischen Exsulanskalkes, wurde eine reiche und vergleichsweise diverse Ostrakodenfauna gewonnen. Sie umfaßt 8 Arten aus

  12. Depositional and diagenetic variability within the Cambrian Mount Simon Sandstone: Implications for carbon dioxide sequestration

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    Bowen, B.B.; Ochoa, R.I.; Wilkens, N.D.; Brophy, J.; Lovell, T.R.; Fischietto, N.; Medina, C.R.; Rupp, J.A.

    2011-01-01

    The Cambrian Mount Simon Sandstone is the major target reservoir for ongoing geologic carbon dioxide (CO2) sequestration demonstrations throughout the midwest United States. The potential CO2 reservoir capacity, reactivity, and ultimate fate of injected CO2 depend on textural and compositional properties determined by depositional and diagenetic histories that vary vertically and laterally across the formation. Effective and efficient prediction and use of the available pore space requires detailed knowledge of the depositional and diagenetic textures and mineralogy, how these variables control the petrophysical character of the reservoir, and how they vary spatially. Here, we summarize the reservoir characteristics of the Mount Simon Sandstone based on examination of geophysical logs, cores, cuttings, and analysis of more than 150 thin sections. These samples represent different parts of the formation and depth ranges of more than 9000 ft (>2743 m) across the Illinois Basin and surrounding areas. This work demonstrates that overall reservoir quality and, specifically, porosity do not exhibit a simple relationship with depth, but vary both laterally and with depth because of changes in the primary depositional facies, framework composition (i.e., feldspar concentration), and diverse diagenetic modifications. Diagenetic processes that have been significant in modifying the reservoir include formation of iron oxide grain coatings, chemical compaction, feldspar precipitation and dissolution, multiple generations of quartz overgrowth cementation, clay mineral precipitation, and iron oxide cementation. These variables provide important inputs for calculating CO2 capacity potential, modeling reactivity, and are also an important baseline for comparisons after CO2 injection. Copyright ??2011. The American Association of Petroleum Geologists/Division of Environmental Geosciences. All rights reserved.

  13. Integrated chronostratigraphy of Proterozoic-Cambrian boundary beds in the western Anabar region, northern Siberia

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    Kaufman, A. J.; Knoll, A. H.; Semikhatov, M. A.; Grotzinger, J. P.; Jacobsen, S. B.; Adams, W.

    1996-01-01

    Carbonate-rich sedimentary rocks of the western Anabar region, northern Siberia, preserve an exceptional record of evolutionary and biogeochemical events near the Proterozoic/Cambrian boundary. Sedimentologically, the boundary succession can be divided into three sequences representing successive episodes of late transgressive to early highstand deposition; four parasequences are recognized in the sequence corresponding lithostratigraphically to the Manykal Formation. Small shelly fossils are abundant and include many taxa that also occur in standard sections of southeastern Siberia. Despite this coincidence of faunal elements, biostratigraphic correlations between the two regions have been controversial because numerous species that first appear at or immediately above the basal Tommotian boundary in southeastern sections have first appearances scattered through more than thirty metres of section in the western Anabar. Carbon- and Sr-isotopic data on petrographically and geochemically screened samples collected at one- to two-metre intervals in a section along the Kotuikan River, favour correlation of the Staraya Reckha Formation and most of the overlying Manykai Formation with sub-Tommotian carbonates in southeastern Siberia. In contrast, isotopic data suggest that the uppermost Manykai Formation and the basal 26 m of the unconformably overlying Medvezhya Formation may have no equivalent in the southeast; they appear to provide a sedimentary and palaeontological record of an evolutionarily significant time interval represented in southeastern Siberia only by the sub-Tommotian unconformity. Correlations with radiometrically dated horizons in the Olenek and Kharaulakh regions of northern Siberia suggest that this interval lasted approximately three to six million years, during which essentially all 'basal Tommotian' small shelly fossils evolved.

  14. Original molluscan radula: comparisons among Aplacophora, Polyplacophora, Gastropoda, and the Cambrian fossil Wiwaxia corrugata.

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    Scheltema, Amélie H; Kerth, Klaus; Kuzirian, Alan M

    2003-08-01

    As the original molluscan radula is not known from direct observation, we consider what the form of the original radula may have been from evidence provided by neomenioid Aplacophora (Solenogastres), Gastropoda, Polyplacophora, and the Cambrian fossil Wiwaxia corrugata (Matthews). Conclusions are based on direct observation of radula morphology and its accessory structures (salivary gland ducts, radular sac, anteroventral radular pocket) in 25 species and 16 genera of Aplacophora; radula morphogenesis in Aplacophora; earliest tooth formation in Gastropoda (14 species among Prosobranchia, Opisthobranchia, and Pulmonata); earliest tooth formation in four species of Polyplacophora; and the morphology of the feeding apparatus in W. corrugata. The existence of a true radula membrane and of membranoblasts and odontoblasts in neomenioids indicates that morphogenesis of the aplacophoran radula is homologous to that in other radulate Mollusca. We conclude from p redness of salivary gland ducts, a divided radular sac, and a pair of anteroventral pockets that the plesiomorphic state in neomenioids is bipartite, formed of denticulate bars that are distichous (two teeth per row) on a partially divided or fused radula membrane with the largest denticles lateral, as occurs in the genus Helicoradomenia. The tooth morphology in Helicoradomenia is similar to the feeding apparatus in W. corrugata. We show that distichy also occurs during early development in several species of gastropods and polyplacophorans. Through the rejection of the null hypothesis that the earliest radula was unipartite and had no radula membrane, we conclude that the original molluscan radula was similar to the radula found in Helicoradomena species. Copyright 2003 Wiley-Liss, Inc.

  15. Cambrian suspension-feeding lobopodians and the early radiation of panarthropods.

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    Caron, Jean-Bernard; Aria, Cédric

    2017-01-31

    Arthropoda, Tardigrada and Onychophora evolved from lobopodians, a paraphyletic group of disparate Palaeozoic vermiform animals with soft legs. Although the morphological diversity that this group encompasses likely illustrates the importance of niche diversification in the early radiation of panarthropods, the ecology of lobopodians remains poorly characterized. Here we describe a new luolishaniid taxon from the middle Cambrian Burgess Shale (Walcott Quarry) in British Columbia, Canada, whose specialized morphology epitomizes the suspension-feeding ecology of this clade, and is convergent with some modern marine animals, such as caprellid crustaceans. This species possesses two long pairs and four shorter pairs of elongate spinose lobopods at the front, each bearing two slender claws, and three pairs of stout lobopods bearing single, strong, hook-like anterior-facing claws at the back. The trunk is remarkably bare, widening rearwards, and, at the front, extends beyond the first pair of lobopods into a small "head" bearing a pair of visual organs and a short proboscis with numerous teeth. Based on a critical reappraisal of character coding in lobopodians and using Bayesian and parsimony-based tree searches, two alternative scenarios for early panarthropod evolution are retrieved. In both cases, hallucigeniids and luolishaniids are found to be extinct radiative stem group panarthropods, in contrast to previous analyses supporting a position of hallucigeniids as part of total-group Onychophora. Our Bayesian topology finds luolishaniids and hallucigeniids to form two successive clades at the base of Panarthropoda. Disparity analyses suggest that luolishaniids, hallucigeniids and total-group Onychophora each occupy a distinct region of morphospace. Hallucigeniids and luolishaniids were comparably diverse and successful, representing two major lobopodian clades in the early Palaeozoic, and both evolved body plans adapted to different forms of suspension feeding. A

  16. Depositional Architecture of Late Cambrian-Early Ordovician Siliciclastic Barik Formation; Al Huqf Area, Oman

    Science.gov (United States)

    Abbasi, Iftikhar Ahmed

    2017-04-01

    Early Paleozoic siliciclastics sediments of the Haima Supergroup are subdivided into a number of formations and members based on lithological characteristics of various rock sequences. One of the distinct sandstone sequence, the Barik Formation (Late Cambrian-Early Ordovician) of the Andam Group is a major deep gas reservoir in central Oman. The sandstone bodies are prospective reservoir rocks while thick shale and clay interbeds act as effective seal. Part of the Barik Formation (lower and middle part) is exposed in isolated outcrops in Al Huqf area as interbedded multistoried sandstone, and green and red shale. The sandstone bodies are up to 2 meters thick and can be traced laterally for 300 m to over 1 km. Most of sandstone bodies show both lateral and vertical stacking. Two types of sandstone lithofacies are identified on the basis of field characteristics; a plane-bedded sandstone lithofacies capping thick red and green color shale beds, and a cross-bedded sandstone lithofacies overlying the plane-bedded sandstone defining coarsening upward sequences. The plane-bedded sandstone at places contains Cruziana ichnofacies and bivalve fragments indicating deposition by shoreface processes. Thick cross-bedded sandstone is interpreted to be deposited by the fluvial dominated deltaic processes. Load-casts, climbing ripples and flaser-bedding in siltstone and red shale indicate influence of tidal processes at times during the deposition of the formation. This paper summarizes results of a study carried out in Al Huqf area outcrops to analyze the characteristics of the sandstone-body geometry, internal architecture, provenance and diagenetic changes in the lower and middle part of the formation. The study shows build-up of a delta complex and its progradation over a broad, low-angle shelf where fluvial processes operate beside shoreface processes in a vegetation free setting. Keywords: Andam Group, Barik Formation, Ordovician sandstone, Al Huqf, Central Oman,

  17. Paleoecology and paleoceanography of the Athel silicilyte, Ediacaran-Cambrian boundary, Sultanate of Oman.

    Science.gov (United States)

    Stolper, D A; Love, G D; Bates, S; Lyons, T W; Young, E; Sessions, A L; Grotzinger, J P

    2017-05-01

    The Athel silicilyte is an enigmatic, hundreds of meters thick, finely laminated quartz deposit, in which silica precipitated in deep water (>~100-200 m) at the Ediacaran-Cambrian boundary in the South Oman Salt Basin. In contrast, Meso-Neoproterozoic sinks for marine silica were dominantly restricted to peritidal settings. The silicilyte is known to contain sterane biomarkers for demosponges, which today are benthic, obligately aerobic organisms. However, the basin has previously been described as permanently sulfidic and time-equivalent shallow-water carbonate platform and evaporitic facies lack silica. The Athel silicilyte thus represents a unique and poorly understood depositional system with implications for late Ediacaran marine chemistry and paleoecology. To address these issues, we made petrographic observations, analyzed biomarkers in the solvent-extractable bitumen, and measured whole-rock iron speciation and oxygen and silicon isotopes. These data indicate that the silicilyte is a distinct rock type both in its sedimentology and geochemistry and in the original biology present as compared to other facies from the same time period in Oman. The depositional environment of the silicilyte, as compared to the bounding shales, appears to have been more reducing at depth in sediments and possibly bottom waters with a significantly different biological community contributing to the preserved biomarkers. We propose a conceptual model for this system in which deeper, nutrient-rich waters mixed with surface seawater via episodic mixing, which stimulated primary production. The silica nucleated on this organic matter and then sank to the seafloor, forming the silicilyte in a sediment-starved system. We propose that the silicilyte may represent a type of environment that existed elsewhere during the Neoproterozoic. These environments may have represented an important locus for silica removal from the oceans. © 2017 John Wiley & Sons Ltd.

  18. The evolutionary and genetic origins of consciousness in the Cambrian Period over 500 million years ago

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    Todd E Feinberg

    2013-10-01

    Full Text Available Vertebrates evolved in the Cambrian Period before 520 million years ago, but we do not know when or how consciousness arose in the history of the vertebrate brain. Here we propose multiple levels of isomorphic or somatotopic neural representations as an objective marker for sensory consciousness. All extant vertebrates have these, so we deduce that consciousness extends back to the group’s origin. The first conscious sense may have been vision. Then vision, coupled with additional sensory systems derived from ectodermal placodes and neural crest, transformed primitive reflexive systems into image forming brains that map and perceive the external world and the body’s interior. We posit that the minimum requirement for sensory consciousness and qualia is a brain including a forebrain (but not necessarily a developed cerebral cortex/pallium, midbrain and hindbrain. This brain must also have 1 hierarchical systems of intercommunicating, isomorphically organized, processing nuclei that extensively integrate the different senses into representations that emerge in upper levels of the neural hierarchy; and 2 a widespread reticular formation that integrates the sensory inputs and contributes to attention, awareness, and neural synchronization. We propose a two-step evolutionary history, in which the optic tectum was the original center of multi-sensory conscious perception (as in fish and amphibians: step 1, followed by a gradual shift of this center to the dorsal pallium or its cerebral cortex (in mammals, reptiles, birds: step 2. We address objections to the hypothesis and call for more studies of fish and amphibians. In our view, the lamprey has all the neural requisites and is likely the simplest extant vertebrate with sensory consciousness and qualia. Genes that pattern the proposed elements of consciousness (isomorphism, neural crest, placodes have been identified in all vertebrates. Thus, consciousness is in the genes, some of which are

  19. Hippidioll sp. (Mammalia, Perissodactyla. Equidae en sedimentos del Pleistoceno superior del Uruguay (Edad Mamífero Lujanense

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    Alberdi, M. T.

    1990-12-01

    Full Text Available The most complete remains of Hippidion sp. to the Pleistocene of Uruguay are described. They agree with a robust form with fore limbs relatively short to the large skull. Cranial, mandibles and postcranial characters are analized and compared with respect to others «hippidiformes» of South America. The depositional environment belong to floodplain facies of meandering fluvial systems.Se describen los restos más completos de Hippidion sp. reportados hasta el momento para el Pleistoceno de Uruguay. Corresponden a una forma robusta con extremidades anteriores relativamente cortas respecto del cráneo grande. Se analizan sus caracteres cráneo-mandibulares y postcraneales comparados con otros «hippidiformes» de Sudamérica. El marco sedimentario corresponde a una planicie de inundación de un sistema fluvial meandriforme de la Fm. Sopas (Pleistoceno superior; Edad mamífero Lujanense del Uruguay.

  20. Detección de cepas de Neisseria meningitidis resistentes a rifampicina en el Uruguay Detection of rifampicin-resistant strains of Neisseria meningitidis in Uruguay

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    Gabriel Pérez Giffoni

    2011-12-01

    Full Text Available El objetivo de este trabajo fue caracterizar fenotípica y genotípicamente dos aislamientos de Neisseria meningitidis resistentes a rifampicina relacionados con dos eventos independientes de transmisión de enfermedad meningocócica grave que se presentaron en septiembre y octubre de 2010 en Montevideo, Uruguay. Se revisó también la base de datos de la vigilancia nacional de resistencia a los antimicrobianos de los últimos 10 años, para estimar la frecuencia de la particularidad de los meningococos caracterizados. La resistencia a rifampicina se estudió por el método epsilométrico. El serotipo y serosubtipo de los aislamientos se determinaron por ELISA y la caracterización genotípica se realizó por digestión del ADN con NheI y electroforesis en gel con campo pulsátil. Ambos aislamientos eran idénticos, B:2a:P1.5, y su fenotipo no figuraba en la colección de 408 cepas de N. meningitidis aisladas en el Uruguay en los últimos 10 años, con la excepción de dos aislamientos sensibles a rifampicina. Los dos aislamientos estudiados también compartían un pulsotipo único, diferente del de otros dos aislamientos resistentes a rifampicina obtenidos en 2003 y 2007. Por lo tanto, ambos eventos de transmisión fueron causados por una única cepa resistente a rifampicina, que podría haberse introducido al país desde otras regiones o haberse originado por un cambio del serogrupo C al B, como producto de la presión selectiva ejercida por vacunas administradas a la población. Es necesario mantener y extremar la vigilancia. No obstante, en vista de que hasta el momento este tipo de hallazgo ha sido esporádico, no se justifica cambiar el fármaco antimicrobiano que se administra a los contactos para la profilaxis, a menos que se identifique un caso secundario.The objective of this study was to characterize the phenotype and genotype of two isolates of rifampicin-resistant Neisseria meningitidis associated with two independent events

  1. Report of the procedure of voluntary interruption of pregnancy at a university hospital in Uruguay.

    Science.gov (United States)

    Bentancor, Ana; Hernández, Ana Laura; Godoy, Yamile; Dapueto, Juan J

    2016-07-04

    To describe the constitution and operation of a voluntary interruption of pregnancy team of a university hospital, from the outlook of the mental health team. In this case study, the following aspects were analyzed: 1) historical background; 2) implementation of Law 18,897 of October 22, 2012; and 3) functioning of the program at the Hospital de Clínicas of the Facultad de Medicina (Universidad de la República, Uruguay), taking into account three dimensions: structure, process, and results. Between December 2012 and November 2013, a total of 6,676 voluntary interruptions of pregnancy were reported in Uruguay; out of these, 80 were conducted at the Hospital de Clínicas. The patients' demographic data agreed with those reported at the national level: Of the total patients, 81.0% were aged over 19 years; 6.2% decided to continue with the pregnancy; and only 70.0% attended the subsequent control and received advice on contraception. In its implementation year in Uruguay, we can assess the experience as positive from the point of view of women's health. Our experience as a mental health team at the Hospital de Clínicas, inserted into the multidisciplinary voluntary interruption of pregnancy team, is in the process of assessment and reformulation of practices. Describir la conformación y funcionamiento de un equipo de interrupción voluntaria del embarazo de un hospital universitario, desde la mirada del equipo de salud mental. En este estudio de caso, se analizan los siguientes aspectos: 1) antecedentes históricos; 2) implementación de la Ley 18.897 de 22 de octubre de 2012; y 3) funcionamiento del programa en el Hospital de Clínicas de la Facultad de Medicina (Universidad de la República, Uruguay), teniendo en cuenta tres dimensiones (estructura, proceso y resultados). Entre diciembre de 2012 y noviembre de 2013, se reportaron en Uruguay un total de 6.676 interrupciones voluntarias del embarazo; de ellas, 80 se llevaron a cabo en el Hospital de Clínicas. Los

  2. Los Consejos de Salarios en el Uruguay en la década del cuarenta. Su contexto y resultados. Los casos de la industria gráfica, del caucho, del cuero y química

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    Claudio Fernández Caetano

    2012-12-01

    Full Text Available En Uruguay, desde el inicio de la década del treinta hasta mediados de los años cincuenta, se desarrolló el modelo industrial sustitutivo de importaciones. El cambio en la estructura productiva tuvo consecuencias en el mercado laboral, influenciado por el rol protector del Estado, fundamentalmente desde la llegada del denominado neobatllismo. Con el desarrollo industrial y sus consecuencias sociales, la legislación laboral y social cobró impulso mejorando las condiciones de vida y trabajo en el medio urbano, deterioradas como consecuencia del período de crisis anterior. El resultado fue la innovación en materia de negociación colectiva creándose los Consejos de Salarios tripartitos, como el escenario del Sistema de Relaciones Laborales. El objetivo de esta investigación consiste en analizar la evolución del salario real en las rondas inaugurales de los Consejos de Salarios, en el Uruguay en la década del cuarenta, para cuatro industrias seleccionadas: la del cuero y fabricación de calzado, la química, del caucho y la industria gráfica; así como también las diferencias salariales existentes entre las distintas calificaciones de los trabajadores agrupadas en tipos de ocupación. Como principal resultado se constató el incremento del salario real tanto en todos los grupos analizados. Los salarios de los trabajadores con categorías de obreros, los menos calificados, tuvieron mayores aumentos salariales respecto a los agrupados en la definición de empleados, con mayor calificación. La discriminación de género siguió haciéndose efectiva mediante diferenciaciones salariales y estipulación de salarios diferenciados entre mujeres y hombres para categorías laborales con idénticas tareas asignadas.

  3. Thermochronological constraints on the Cambrian to recent geological evolution of the Argentina passive continental margin

    Science.gov (United States)

    Kollenz, Sebastian; Glasmacher, Ulrich A.; Rossello, Eduardo A.; Stockli, Daniel F.; Schad, Sabrina; Pereyra, Ricardo E.

    2017-10-01

    Passive continental margins are geo-archives that store information from the interplay of endogenous and exogenous forces related to continental rifting, post-breakup history, and climate changes. The recent South Atlantic passive continental margins (SAPCMs) in Brazil, Namibia, and South Africa are partly high-elevated margins ( 2000 m a.s.l.), and the recent N-S-trending SAPCM in Argentina and Uruguay is of low elevation. In Argentina, an exception in elevation is arising from the higher topography (> 1000 m a.s.l.) of the two NW-SE-trending mountain ranges Sierras Septentrionales and Sierras Australes. Precambrian metamorphic and intrusive rocks, and siliciclastic rocks of Ordovician to Permian age represent the geological evolution of both areas. The Sierras Australes have been deformed and metamorphosed (incipient - greenschist) during the Gondwanides Orogeny. The low-temperature thermochronological (LTT) data (Cenozoic South Atlantic geological evolution. Upper Carboniferous zircon (U-Th/He)-ages (ZHe) indicate the earliest cooling below 180 °C/1 Ma. Most of the ZHe-ages are of Upper Triassic to Jurassic age. The apatite fission-track ages (AFT) of Sierras Septentrionales and the eastern part of Sierras Australes indicate the South Atlantic rifting and, thereafter. AFT-ages of Middle to Upper Triassic on the western side of the Sierras Australes are in contrast, indicating a Triassic exhumation caused by the eastward thrusting along the Sauce Grande wrench. The corresponding t-T models report a complex subsidence and exhumation history with variable rates since the Ordovician. Based on the LTT-data and the numerical modelling we assume that the NW-SE-trending mountain ranges received their geographic NW-SE orientation during the syn- to post-orogenic history of the Gondwanides.

  4. Mecanismos de determinación del salario en la actividad privada en Uruguay

    Directory of Open Access Journals (Sweden)

    Héctor Babace

    2014-01-01

    Full Text Available I. Introducción. II. Reseña histórica de los sistemas de reglamentación y de determinación del salario en Uruguay. III. Descripción y análisis del actual sistema de determinación de salarios en la actividad privada en Uruguay. Análisis de la ley Nº 18.566 sobre negociación colectiva. 1. La negociación colectiva y la determinación de salarios. a. Características del sistema de relaciones laborales de Uruguay. b. Procedimientos para el establecimiento de condiciones de trabajo y para la determinación de salarios mínimos. b1. Determinación de salarios por negociación colectiva. b2. Determinación de salarios en Consejos de Salarios. b3. Preferencia por la negociación colectiva sobre los Consejos de Salarios para la determinación de salarios mínimos. 3. Los nuevos Consejos de Salarios. 4 El Consejo Superior Tripartito. 5. Otras cuestiones expresamente reguladas. 6. Los niveles de negociación y su articulación. 6. Prevención y solución de conflictos. La determinación del salario constituye un tema central en la protección de la justa remuneración y especialmente contribuyen al referido propósito, los mecanismos que se instrumenten para establecer los salarios mínimos.

  5. El desarrollo profesional médico continuo en el Uruguay de cara al siglo XXI

    Directory of Open Access Journals (Sweden)

    Larre Borges Uruguay

    2003-01-01

    Full Text Available This paper outlines the evolution of the concept of continuing medical professional development in Uruguay, as that professional development has progressed from independent and varied efforts that were not coordinated or evaluated to a plan that is aimed at improving the quality of educational activities and programs and making them accessible to all the physicians in the country. In contrast to countries where scientific societies and medical associations preside over continuing professional development, in Uruguay the Graduate School of the School of Medicine of the University of the Republic has taken on managing and developing this process. The key objective of this process is for the Graduate School to work in conjunction with other leading players in professional development to create a national system of continuing medical professional development. This system should be interinstitutional and include both public and private entities. By having the key public institutions (the Graduate School and the Ministry of Public Health working with private entities (medical associations, scientific societies, and health care institutions, there should be an adequate balance of interests. The national professional development system should work in the most decentralized manner possible and should be based on a network of units distributed around the entire country, but with centralized coordination. The system's interinstitutional character should ensure high technical and ethical standards as well as a balance among the governmental, commercial, professional, and university components. This system should serve as the basis for extending this activity to all health personnel in Uruguay. While the national system is still being finalized, the Graduate School has implemented a process of accrediting institutions that are involved in continuing professional medical development. The aim of this accreditation process is to improve the educational

  6. Provenance and paleogeography of the Devonian Durazno Group, southern Parana Basin in Uruguay

    Science.gov (United States)

    Uriz, N. J.; Cingolani, C. A.; Basei, M. A. S.; Blanco, G.; Abre, P.; Portillo, N. S.; Siccardi, A.

    2016-03-01

    A succession of Devonian cover rocks occurs in outcrop and in the subsurface of central-northern Uruguay where they were deposited in an intracratonic basin. This Durazno Group comprises three distinct stratigraphic units, namely the Cerrezuelo, Cordobés and La Paloma formations. The Durazno Group does not exceed 300 m of average thickness and preserves a transgressive-regressive cycle within a shallow-marine siliciclastic shelf platform, and is characterized by an assemblage of invertebrate fossils of Malvinokaffric affinity especially within the Lower Devonian Cordobés shales. The sedimentary provenance of the Durazno Group was determined using petrography, geochemistry, and morphological studies of detrital zircons as well as their U-Pb ages. Sandstone petrography of Cerrezuelo and La Paloma sequences shows that they have a dominantly quartz-feldspathic composition with a minor contribution of other minerals. Whole-rock geochemical data indicate that alteration was strong in each of the three formations studied; chondritic-normalized REE patterns essentially parallel to PAAS, the presence of a negative Eu-anomaly, and Th/Sc and La/Hf ratios point to an average source composition similar to UCC or slightly more felsic. Within the Cerrezuelo Formation, recycling of older volcano-metasedimentary sources is interpreted from Zr/Sc ratios and high Hf, Zr, and REE concentrations. U-Pb detrital zircon age populations of the Cerrezuelo and La Paloma formations indicate that the principal source terranes are of Neoproterozoic age, but include also minor populations derived from Mesoproterozoic and Archean-Paleoproterozoic rocks. A provenance from the Cuchilla Dionisio-Dom Feliciano, Nico Pérez and Piedra Alta terranes of Uruguay and southern Brazil is likely. This study establishes an intracratonic extensional tectonic setting during Durazno time. Considering provenance age sources, regional paleocurrent distributions and the established orogenic history recorded in SW

  7. First approach to exhaust emissions characterization of light vehicles in Montevideo, Uruguay.

    Science.gov (United States)

    D'Angelo, Mauro; González, Alice Elizabeth; Rezzano Tizze, Nicolás

    2017-11-02

    According to Act No. 17283 of November 28th, 2000, air quality protection is a general concern in Uruguay. Road transport is the main emitter of nitrogen oxides (NOx), as the National Inventory of Air Emissions 2006 stated. Actually, it is responsible for the emissions of 59.8% of NOx and 28% of carbon monoxide (CO). The number of households owning a car in Uruguay increased from 29% in 2005 to 39% in 2013, enhancing the importance of characterizing the vehicular emissions of the national fleet. In this paper, a first approach for this characterization is presented. It was carried out on a sample of 11 light vehicles currently in use in Montevideo city, Uruguay. On-road emissions measurements of nitrogen monoxide (NO), carbon monoxide (CO) and carbon dioxide (CO2) were carried out for calculating the emission factors. The fitness of the set of calculated emission factors values to different probability distributions was tested. When possible, the 95% confidence intervals were obtained for the mean emission factors (CO: 2.0g/km±0.3g/km; NO: 0.05g/km±0.01g/km). This procedure was useful to obtaining accurate confidence intervals from a relatively small sample size. Finally, the link between atmospheric emissions and some other parameters of the tested vehicles was studied using a multivariate statistical tool, highlighting the strong increase in carbon monoxide emissions observed for low vehicles speeds and fuel efficiencies. Copyright © 2017 Elsevier B.V. All rights reserved.

  8. Les disparus politiques en Uruguay, entre l’histoire et la mémoire

    Directory of Open Access Journals (Sweden)

    Eugenia Allier Montaño

    2011-08-01

    Full Text Available Depuis un certain temps, les discussions sur les passés récents et violents, connus lors des années 1960-1980, sont l’un des enjeux majeurs des espaces publics dans plusieurs pays de l’Amérique du Sud. L’Uruguay, ayant vécu un régime civique militaire fortement répressif entre 1973 et 1985, n’a pas été l’exception. Pourtant, bien que les mémoires publiques sur ce passé aient traversé différentes périodes, c’est la disparition des personnes qui conduit presque toute l’histoire des luttes autour de la mémoire du pays. Dans ce texte, nous nous attelons à tracer l’histoire de la mémoire des disparus politiques dans l’arène publique en Uruguay pour connaître les motifs qu’ont faits des disparus de l’image du passé récent.Discussions on violence during the years 1960-1980 in South America have for some time been a central issue in the public space of many South American countries. Uruguay, having gone through a strongly repressive civic-military regime between 1973 and 1985, was no exception. While public memories on this period have gone through different phases, the forced disappearances have always been the main focus of the struggles for memory. This article attempts to trace the history of the remembering of these victims of forced disappearance in the Uruguayan public arena in order to determine memory patterns in the image of a recent past.

  9. El Poder Simbólico de las Gremiales Ganaderos en el Uruguay Contemporáneo

    OpenAIRE

    Riella,Alberto; Andrioli,Alexandra

    2004-01-01

    En este artículo se buscará estudiar el amplio poder de influencia que los grandes estancieros y sus gremiales logran mantener desde hace más de un siglo en el Uruguay. Mediante el análisis de la dimensión simbólica del mundo social agrario estudiaremos las prácticas discursivas de las Gremiales Ganaderas - Asociación Rural del Uruguay y Federación Rural - como parte central de su estrategia simbólica para mantener su hegemonía en el campo social agrario. En este sentido, creemos que la const...

  10. Hydrogeology of the Cambrian-Ordovician aquifer system in the northern Midwest: B in Regional aquifer-system analysis

    Science.gov (United States)

    Young, H.L.; Siegel, D.I.

    1992-01-01

    The Cambrian-Ordovician aquifer system contains the most extensive and continuous aquifers in the northern Midwest of the United States. It is the source of water for many municipalities, industries, and rural water users. Since the beginning of ground-water development from the aquifer system in the late 1800's, hydraulic heads have declined hundreds of feet in the heavily pumped Chicago-Milwaukee area and somewhat less in other metropolitan areas. The U.S. Geological Survey has completed a regional assessment of this aquifer system within a 161,000-square-mile area encompassing northern Illinois, northwestern Indiana, Iowa, southeastern Minnesota, northern Missouri, and Wisconsin.

  11. The Tastil batholith (Cordillera Oriental, Argentina): a case of lower Cambrian extensional-related magmatism in the border of Gondwana.

    Science.gov (United States)

    Hongn, F.; Tubía, J. M.; Aranguren, A.; Mon, R.

    2003-04-01

    The Tastil batholith composed of gray granodiorite, red granite and dacite porphiry, intrudes into weakly metamorphosed turbidites (usually included in the Puncoviscana Formation) and into Cambrian shelf sandstones belonging to the Lower-Middle Cambrian Mesón Group deposited in an intracontinental extensional basin. Tremadocian fossiliferous conglomerates overlying the sandstones of the Mesón Group incorporate red granite pebbles in the Angosto de la Quesera section, the classical section for interpreting the stratigraphic relationships of the Tastil batholith. U-Pb zircon ages from a dacite porphiry (526 Ma) and red granite (517 Ma) are consistent with such field relationships. This new view of the Tastil batholith implies that the previous interpretations of the basement, based on the supposed unconformity between the Mesón Group and the underlying red granite, and hence including the Tastil batholith in the basement, can not longer be sustained. The batholith emplacement is not related with the shortening happened during the late evolution of the Puncoviscana Formation (Pampean cycle) as always was interpreted, but with the extensional tectonics responsible for the development of the Mesón Group basin (Famatinian cycle). Along central and northern Argentina, the basement records a wide spectrum of sedimentary, deformational, magmatic and metamorphic processes occurred at different crustal levels during the Latest Neoproterozoic and the Cambrian. In this regard, the deposition of the Mesón Group and the intrusion of the Tastil batholith within the Cordillera Oriental can be correlated with the magmatism and the high-T/low-P metamorphism developed, at deeper levels, 530 to 500 Ma ago within the basement of the Puna and Sierras Pampeanas. In the same way, the sedimentation and igneous processes documented at shallower levels in the Sierras Pampeanas took place in this extensional tectonic scenario. The available data point to an overall extensional tectonics

  12. A highly diverse trilobite fauna with Avalonian affinities from the Middle Cambrian Acidusus atavus Zone (Drumian Stage) of Bornholm, Denmark

    DEFF Research Database (Denmark)

    Weidner, Thomas; Nielsen, Arne Thorshøj

    2014-01-01

    A newly collected trilobite fauna from the lowermost part of the Alum Shale Formation at Øleå, Bornholm, Denmark, demonstrates the presence of a thin but richly fossiliferous Middle Cambrian Acidusus atavus Zone (Paradoxides paradoxissimus Superzone). The lower part of the zone (the Tomagnostus......, with designation and reillustration of relevant lectotypes. The abundance of polymerid trilobites in comparison with nearby Scania, southern Sweden, where 25 agnostid and nine polymerid species have been reported from equivalent strata, is indicative of a less dysoxic environment in the Bornholm area, which...

  13. First occurrence of a new Ocruranus-like helcionelloid mollusc from the lower Cambrian of East Gondwana

    DEFF Research Database (Denmark)

    Skovsted, Christian B.; Brock, Glenn A.; Topper, Timothy Paul

    2012-01-01

    A new cap-shaped mollusc, Emargimantus angulatus gen. et sp. nov. is described from the Arrowie Basin of South Australia. The new species is closely comparable to mollusc species from South China and North-East Greenland previously described under the generic name Ocruranus Liu, a genus recently...... reinterpreted as a multiplated, possibly polyplacophoran mollusc. Emargimantus is interpreted as a univalved helcionelloid mollusc and differs from Ocruranus in both morphology and function. E. angulatus represents the first discovery of Ocruranus-like helcionelloids in the lower Cambrian of eastern Gondwana...

  14. Mortalidad infantil en uruguay: un análisis de supervivencia

    OpenAIRE

    Jewell R. Todd; Triunfo Patricia

    2010-01-01

    A partir de todos los nacimientos ocurridos en el Uruguay entre 2002 y 2003 y las defunciones ocurridas en el primer año de vida, se estima la tasa de mortalidad infantil a través de modelos probit y hazard. Debido a que las muertes se concentran en los primeros días y semanas de vida, el modelo hazard es preferible al probit, encontrándose que la estimación probit sobreestima los efectos de las covariables. Los resultados muestran que las variables más importantes so...

  15. Estudio observacional sobre presencia y caracterización de hematomas en carcasas vacunas de Uruguay

    OpenAIRE

    Crosi, Gonzalo; Prado, Martín; Huertas, Stella; Imelio, Juan; Piaggio, José; Gil, Andres

    2016-01-01

    Objetivo: Evaluar y caracterizar los hematomas presentes en vacunos faenados en las plantas frigoríficas de Uruguay, habilitadas para exportación. Comparar datos obtenidos con investigaciones anteriores a nivel nacional. Metodología: Se realizó un estudio observacional de las carcasas bovinas luego de la faena, con el fin de evaluar la presencia de hematomas, teniendo en cuenta su localización, área, forma y profundidad. A su vez, se recabó información sobre el sexo y categoría de las tropas ...

  16. La reforma del proceso laboral en Uruguay. El regreso al proceso laboral autónomo

    Directory of Open Access Journals (Sweden)

    Hugo Fernández

    2012-12-01

    Full Text Available The reform of the labor process in Uruguay. The return to the autonomous labor processThe reform of the Uruguayan labor process and the return to an autonomous legal regime represent a radical and fundamental change in the national legislation. The simplicity of new procedural structures governed by principles and owns norms of labor discipline give the new regime a dogmatic autonomous space lost for many years. The procedural labor reform is built on the adjectival character of its nature prioritizing the substantive law and adjusting the procedural rule to its characteristics. The principles of Labor Law (substantive and procedural are the foundation of the new regime

  17. Argentina – Uruguay: Guerra mediática por las papeleras

    Directory of Open Access Journals (Sweden)

    Esteban Landau

    2014-12-01

    Full Text Available En este ensayo se intenta dilucidar qué rol cumplieron los principales diarios argentinos y uruguayos durante los meses de cobertura del conflicto por la siembra de eucaliptos para convertir la madera en celulosa. Relata la historia del conflicto entre Uruguay y Argentina donde se evidencia que frente a un mismo hecho hubo distintas miradas, la elección de las palabras fueron claves para editorializar, la jerarquización de la noticia, fue uno de los mecanismos de expresión de la opinión de los medios sobre el tema.

  18. Definition of a proper institutional and legal framweork to promote energy efficiency in Uruguay

    Energy Technology Data Exchange (ETDEWEB)

    Blanco, Alfonso; Juarez, Maria

    2010-09-15

    There is no lower cost energy source than the avoided energy from unnecessary consumption either more expensive energy than scarce energy resources in a growing economy. Under this concept energy efficiency has been established as one of the main pillars of energy policy in Uruguay since 2005. A recently approved Law provides 4-axis of action to promote energy efficiency: building of institutional structure and long-term framework necessary for nationwide development, ensuring consumers access to adequate information, facilitating the access to finance and economic resources to encourage energy efficiency projects and, removing tax and administrative barriers to energy efficiency.

  19. CUIDAR EN LA VEJEZ: DESIGUALDADES DE GÉNERO EN URUGUAY

    OpenAIRE

    Rosario Aguirre Cuns; Sol Scavino Solari

    2016-01-01

    Este artículo tiene como objetivo contribuir al desarrollo de una perspectiva latinoamericana de vejez y género y aportar conocimientos en torno a los cuidados en la vejez en Uruguay. Desde una perspectiva feminista del cuidado, realiza una breve reflexión sobre la construcción social de la vejez, el género y su vínculo con el cuidado. A partir de información empírica reciente, cuya fuente es la Encuesta de Uso del Tiempo 2013, se da cuenta de las desigualdades d...

  20. Cuidar y ser cuidado en la vejez: desigualdades de género en Uruguay

    OpenAIRE

    Rosario Aguirre Cuns; Sol Scavino Solari

    2016-01-01

    Este artículo tiene como objetivo contribuir al desarrollo de una perspectiva latinoamericana de vejez y género y aportar conocimientos en torno a los cuidados en la vejez en Uruguay. Desde una perspectiva feminista del cuidado, realiza una breve reflexión sobre la construcción social de la vejez, el género y su vínculo con el cuidado. A partir de información empírica reciente, cuya fuente es la Encuesta de Uso del Tiempo 2013, se da cuenta de las desigualdades de género en la provisión de cu...

  1. The phantasmatic indian is recruited in the city. Neoshamanism, its origins and its arrival in Uruguay

    Directory of Open Access Journals (Sweden)

    Ismael Apud

    2013-12-01

    Full Text Available In this paper we will analyze in first place how neoshamanic practices arise. We will see how the academic formulation of shamanic phenomena affects the emergency of neo-shamanism, and how their historical emergence is related to the counter-cultural movements of the sixties, and later with other movements related to New Age and Posmodernity. Last we will address the phenomenon in Uruguay, giving a short description of one of the groups identified the center of alternative therapies Ayariri, related to the Amazon vegetalista tradition.

  2. State of Law, Governmentality and Democracy in Uruguay: the present and perspectives

    Directory of Open Access Journals (Sweden)

    Carlos Moreira

    2009-12-01

    Full Text Available This paper addresses the functioning of democracy in Uruguay in three stages. In the first, briefly discusses some of the central issues of contemporary debate about the quality of democracy, while the second presents the first findings from an ongoing investigation into the situation of rule of law around five dimensions: public policy and security, judicial administrative, institutional and administrative capacity, transparency and civilian control over security forces. Finally, by way of conclusions, we provide a series of reflections on risk areas of rule of law in Uruguayan democracy.

  3. Brasil y Uruguay : dos procesos de independencia íntimamente relacionados

    OpenAIRE

    Sánchez Gómez, Julio

    2009-01-01

    Íntimamente relacionados y destacadamente anómalos en relación con los demás de la América ibérica. Brasil fue el único estado en adoptar a largo plazo la forma monárquica de gobierno, el único en el que la esclavitud fue el centro de su sistema productivo y el único que no se rompió en pedazos y consiguió, a duras penas, mantener la unidad territorial de todo el conjunto colonial. El de Uruguay fue el proceso más largo, complicado y zigzagueante de entre todos los ocurridos en territorios se...

  4. FY04 Inspection Results for Wet Uruguay Fuel in L-Basin

    Energy Technology Data Exchange (ETDEWEB)

    VORMELKER, PHILIP

    2005-09-01

    The 2004 visual inspection of four Uruguay nuclear fuel assemblies stored in L-Basin was completed. This was the third inspection of this wet stored fuel since its arrival in the summer of 1998. Visual inspection photographs of the fuel from the previous and the recent inspections were compared and no evidence of significant corrosion was found on the individual fuel plate photographs. Fuel plates that showed areas of pitting in the cladding during the original receipt inspection were also identified during the 2004 inspection. However, a few pits were found on the non-fuel aluminum clamping plates that were not visible during the original and 2001 inspections.

  5. Uruguay: a la espera del beso del príncipe

    Directory of Open Access Journals (Sweden)

    Enrique Roldós

    2015-01-01

    Full Text Available En Uruguay, la concentración de los medios llega a una situación extrema: la televisión abierta es dueña también del cable, como antes lo era de ls radios de mayor audiencia. El poder del oligopolio condiciona ahora al estrato político que favoreció su crecimiento; desde su posición de fuerza la televisión uruguaya "pone en su lugar al gobierno". Sin embargo, para algunos, este podría ser su último éxito

  6. Política pública de turismo en Uruguay (1986-2010)

    OpenAIRE

    Claudio Quintana

    2016-01-01

    En el presente artículo se describe y analiza la evolución de la política pública de turismo en Uruguay de los últimos veinticinco años, desde la creación del Ministerio de Turismo en 1986 hasta el 2010. Se describen los diferentes instrumentos de la política pública de turismo utilizados en cada período de gobierno y se analizan las funciones que asumió el estado en el contexto del turismo. Finalmente se procede a una periodización de su evolución, establec...

  7. Elecciones 94 y coalición de Gobierno en Uruguay

    OpenAIRE

    Mancebo, María Esther

    1996-01-01

    RESUMEN: Este artículo ofrece un análisis de los resultados de las elecciones generales realizadas en Uruguay en noviembre de 1994 y una perspectiva de los primeros meses del nuevo gobierno. En el primer aspecto se señala la configuración de un espectro de tres agrupaciones políticas: el Partido Colorado, el Nacional y el Encuentro Progresista que reúnen aproximadamente un tercio del electorado. En este contexto se analiza el fortalecimiento de los partidos de izquierda. También se estudia el...

  8. Actitudes lingüísticas en Uruguay. Tensiones entre la variedad y la identidad

    OpenAIRE

    Elizabeth García de los Santos

    2014-01-01

    Resumen Este artículo analiza las actitudes lingüísticas de los hablantes nativos de español de la ciudad de Montevideo hacia al español de Uruguay y el de los otros países hispanohablantes. El artículo es parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America), financiado por El Consejo Noruego de Investigaciones (RCN). La recolección de los datos se realizó en la capital del país, entrevistando a una muest...

  9. Information skills in the National Reading Plan of Uruguay: Actions for social inclusion

    OpenAIRE

    Ceretta,María Gladys

    2015-01-01

    Se describen las estrategias que se vienen implementando para promover el desarrollo de las competencias en información en el marco del Plan Nacional de Lectura de Uruguay que lleva adelante el Ministerio de Educación y Cultura, como política pública de alcance nacional. Las mismas están orientadas a contextos socio-económicos vulnerables y acompañan los procesos de formación de promotores y animadores de lectura. Se analizan y evalúan las experiencias llevadas cabo con poblaciones objetivo q...

  10. Determinación de carbono activo en suelos bajo diferentes situaciones productivas en Uruguay

    OpenAIRE

    Gilsanz, Juan Carlos; Peralta, Gabriel

    2015-01-01

    La materia orgánica del suelo es el indicador principal de la calidad de un suelo. La mayor parte de las producciones intensivas presentan valores de materia orgánica limitantes para la producción en Uruguay. Durante el año 2008-2009 se evaluaron muestras provenientes de 4 situaciones productivas con distintos suelos. El objetivo fue la determinación de carbono activo en diferentes situaciones productivas con diferentes manejos de suelo, a través de la oxidación del permanganato de potasio en...

  11. Indicadores de sustentabilidad para las cadenas de bioenergía en Uruguay

    OpenAIRE

    Chiappe, Marta; Gutiérrez, Jaime; Primo, Patricia; Arbeletche, Pedro; Daniluk, Gustavo; Morás, Guillermo; Siri Prieto, Guillermo; Picasso, Valentín

    2015-01-01

    Un objetivo de la Agroecología es brindar información relevante para la toma de decisiones a nivel predial y nacional para la generación de políticas públicas. En Uruguay, el Ministerio de Industria, Energía y Minería está considerando promover la producción de energía alternativa a partir de biomasa de diferentes fuentes. Los indicadores de sostenibilidad definidos por GBEP (Global Bioenergy Partnership) para las cadenas de producción de bioenergía pueden ser una herramienta útil para fortal...

  12. Tentativa e ideación de suicidio en adultos mayores en Uruguay

    OpenAIRE

    María Cristina Heuguerot Fachola; Rossana Lucero; Viviana Porto; Elizabeth Díaz; María de los Angeles París

    2015-01-01

    Se presenta una investigación sobre Intentos de Suicidio en Adultos Mayores en Uruguay realizada en una institución de Salud Pública de Montevideo en 2014 vinculada a un proyecto de Claves/Fiocruz. A partir de un proyecto inicial se realizaron entrevistas semiestructuradas a sujetos institucionalizados con historias de Intentos de Autoeliminación, una revisión bibliográfica, búsqueda de normativas y acciones preventivas de las autoridades de salud públi...

  13. Geochemistry of the Cambrian-Ordovician aquifer system in the northern Midwest, United States: D in Regional aquifer-system analysis

    Science.gov (United States)

    Siegel, D.I.

    1989-01-01

    Distributions of solutes in aquifers of Cambrian and Ordovician age were studied in Minnesota, Wisconsin, Iowa, Illinois, northwestern Indiana, and northern Missouri to determine the sources of solutes and the probable chemical mechanisms that control regional variations in water quality. This work is part of the Northern Midwest Regional Aquifer-System Analysis project, whose objective is to describe and model the regional hydrogeology of the Cambrian- Ordovician aquifer system in the study region. The data base used included more than 3,000 ground-water-quality analyses from all major aquifers, but especially from the St. Peter, Jordan, and Mount Simon Sandstones and their equivalents. Regional variations in the water chemistry of glacial drift and other sedimentary units that overlie the Cambrian-Ordovician aquifer system in recharge areas in Minnesota, Iowa, Wisconsin, and Illinois were also studied, but to a lesser degree.

  14. O enfermeiro como coordenador de grupos: contribuições da Dinâmica de Grupo

    OpenAIRE

    Carla Natalina da Silva Fernandes

    2008-01-01

    Na enfermagem a utilização do recurso grupal tem sido utilizada para trabalhar com pessoas o que exige dos profissionais um conhecimento específico, para atender aos objetivos do grupo sem causar danos aos envolvidos. O objetivo desta pesquisa foi discutir à luz do referencial teórico da Dinâmica de Grupo os atributos desejáveis para o enfermeiro como coordenador de grupos, suas possibilidades e limitações. Trata-se de uma investigação teórica, de natureza descritiva e analítica desenvolvida ...

  15. Colombia: crece el control de grupos financieros en los medios

    Directory of Open Access Journals (Sweden)

    Humberto López López

    2015-01-01

    Full Text Available Señala que parece inevitable el que en las economías de libre mercado, los medios tiendan a pertenecer a los grandes grupos financieros. La polémica sobre si los grandes grupos financieros deben controlar los medios o si es tan riesgoso un monopolio controlado por periodistas como un medio controlado por monopolios es un estadio más en la búsqueda de un periodismo objetivo, independiente y confiable

  16. O grupo operativo intervindo na Síndrome de Burnout

    Directory of Open Access Journals (Sweden)

    Vivien Rose Böck

    Full Text Available O presente estudo teve como objetivo verificar a alteração do nível de Burnout em professores por intermédio da intervenção da técnica de grupos operativos. A amostra foi composta por professores de 5ª a 8ª série de uma escola particular de Porto Alegre, subdividindo-se em dois grupos, o de controle e o experimental, com 12 professores em cada grupo. Para medir a Síndrome de Burnout foi utilizado o MBI (Maslach Burnout Inventory. Após a primeira aplicação do teste em todos os professores, realizaram-se 9 encontros sob a técnica de grupos operativos com o grupo experimental e posteriormente, todos responderam novamente ao teste. Os resultados demonstraram aumento do nível de Burnout, bem como nas suas dimensões: esgotamento emocional, realização profissional e despersonalização para o grupo experimental. Na análise da intervenção constatou-se a importância tanto da sensibilização profissional do trabalho docente como do apoio social entre os professores como estratégias para a prevenção e o enfrentamento da Síndrome de Burnout.

  17. Evidence for a lack of biological P-cycling in a Cambrian soil

    Science.gov (United States)

    Wei, Z.; Peng, Y.; Bao, H.

    2015-12-01

    The earliest fossil land plants are known to exist in the Mid-Ordovician at 472 to 468 Ma and protein sequence analyses suggest that the onset of land colonization may have begun at as early as ca. 700-1000 million years ago (Ma) . However, fully established soil ecosystem may not be in place until after the Devonian (ca. 400 Ma) or even later. Dearth of fossil record on possible fungi- and/or bacteria-dominated early land biota renders it difficult to establish the early history of land colonization on Earth. Here we present a proxy for soil biological P- cycling. Igneous rock contains typically 0.005-0.4% (wt) phosphate (PO4-3). In a biologically active soil weathering profile, phosphorus (P) is cycled by land biota including by those of the most primitive kingdoms. During, for example, pyrophosphate hydrolysis, the P-O bonds in PO4-3 breaks and exchange oxygen with ambient water. The biologically processed PO4-3 will have typically much higher δ18Ovalues (15-24‰ VSMOW) than the ones inherited from igneous sources (ca. 6‰). Therefore, an increase in the δ18OPO4 from pristine igneous rocks to the upper more weathered ones should be expected if there was an active soil biological P-cycling. An igneous-PO4 δ18O value in the more weathered rocks would otherwise indicate a lack of biologically-mediated P-cycling, thus a lack of or very limited land colonization. We examined a weathering profile in the Elk Point Formation (520-503Ma), South Dakota, a paleosol developed on a metagabbro in a subtropical climate of the Mid-Cambrian. Phosphate was extracted from a drill core of this profile and was analyzed for δ18OPO4. The δ18OPO4 for the weathered and un-weathered igneous rocks are all within a narrow range of 4.8-8.2‰, suggesting that biological P-cycling was insignificant during the weathering of Elk Point metagabbro at ca. 500 Ma. Subaerial, biologically mediated weathering probably did not play a role in geochemical cycling on Earth until much later in

  18. Orogen styles in the East African Orogen: A review of the Neoproterozoic to Cambrian tectonic evolution

    Science.gov (United States)

    Fritz, H.; Abdelsalam, M.; Ali, K. A.; Bingen, B.; Collins, A. S.; Fowler, A. R.; Ghebreab, W.; Hauzenberger, C. A.; Johnson, P. R.; Kusky, T. M.; Macey, P.; Muhongo, S.; Stern, R. J.; Viola, G.

    2013-10-01

    The East African Orogen, extending from southern Israel, Sinai and Jordan in the north to Mozambique and Madagascar in the south, is the world´s largest Neoproterozoic to Cambrian orogenic complex. It comprises a collage of individual oceanic domains and continental fragments between the Archean Sahara-Congo-Kalahari Cratons in the west and Neoproterozoic India in the east. Orogen consolidation was achieved during distinct phases of orogeny between ∼850 and 550 Ma. The northern part of the orogen, the Arabian-Nubian Shield, is predominantly juvenile Neoproterozoic crust that formed in and adjacent to the Mozambique Ocean. The ocean closed during a protracted period of island-arc and microcontinent accretion between ∼850 and 620 Ma. To the south of the Arabian Nubian Shield, the Eastern Granulite-Cabo Delgado Nappe Complex of southern Kenya, Tanzania and Mozambique was an extended crust that formed adjacent to theMozambique Ocean and experienced a ∼650-620 Ma granulite-facies metamorphism. Completion of the nappe assembly around 620 Ma is defined as the East African Orogeny and was related to closure of the Mozambique Ocean. Oceans persisted after 620 Ma between East Antarctica, India, southern parts of the Congo-Tanzania-Bangweulu Cratons and the Zimbabwe-Kalahari Craton. They closed during the ∼600-500 Ma Kuungan or Malagasy Orogeny, a tectonothermal event that affected large portions of southern Tanzania, Zambia, Malawi, Mozambique, Madagascar and Antarctica. The East African and Kuungan Orogenies were followed by phases of post-orogenic extension. Early ∼600-550 Ma extension is recorded in the Arabian-Nubian Shield and the Eastern Granulite-Cabo Delgado Nappe Complex. Later ∼550-480 Ma extension affected Mozambique and southern Madagascar. Both extension phases, although diachronous,are interpreted as the result of lithospheric delamination. Along the strike of the East African Orogen, different geodynamic settings resulted in the evolution of

  19. Disc-shaped fossils resembling porpitids or eldonids from the early Cambrian (Series 2: Stage 4) of western USA

    Science.gov (United States)

    Kurkewicz, Richard; Shinogle, Heather; Kimmig, Julien; MacGabhann, Breandán Anraoi

    2017-01-01

    The morphology and affinities of newly discovered disc-shaped, soft-bodied fossils from the early Cambrian (Series 2: Stage 4, Dyeran) Carrara Formation are discussed. These specimens show some similarity to the Ordovician Discophyllum Hall, 1847; traditionally this taxon had been treated as a fossil porpitid. However, recently it has instead been referred to as another clade, the eldonids, which includes the enigmatic Eldonia Walcott, 1911 that was originally described from the Cambrian Burgess Shale. The status of various Proterozoic and Phanerozoic taxa previously referred to porpitids and eldonids is also briefly considered. To help ascertain that the specimens were not dubio- or pseudofossils, elemental mapping using energy dispersive X-ray spectroscopy (EDS) was conducted. This, in conjunction with the morphology of the specimens, indicated that the fossils were not hematite, iron sulfide, pyrolusite, or other abiologic mineral precipitates. Instead, their status as biologic structures and thus actual fossils is supported. Enrichment in the element carbon, and also possibly to some extent the elements magnesium and iron, seems to be playing some role in the preservation process. PMID:28603667

  20. Redox history of the Three Gorges region during the Ediacaran and Early Cambrian as indicated by the Fe isotope

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    Yusuke Sawaki

    2018-01-01

    To circumvent this deficiency, we drilled a fossiliferous Ediacaran to Early Cambrian sedimentary succession in the Three Gorges region, South China. We analyzed the iron isotope ratios (δ56/54Fe of pyrite grains in the drill cores using laser ablation multi collector inductively coupled plasma mass spectrometry. The results demonstrate large variations in δ56/54Fe, from −1.6 to 1.6‰, and positive iron isotope ratios are observed in many successions. The presence of positive δ56/54Fe in pyrite indicates that the ferrous iron in the seawater was partially oxidized, suggesting that seawater at Three Gorges was ferruginous during the Ediacaran and Early Cambrian periods. However, aggregated pyrite grains in organic carbon-rich black shales at Member 4 of the Doushantuo Formation and the base of the Shuijingtuo Formation yield near-zero δ56/54Fe values; this suggests that the ocean was transiently dominated by sulfidic conditions during these periods. Notably negative δ56/54Fe values, lower than −1‰, can be interpreted as a signature of DIR. The DIR also might contribute in part to the re-mineralization of organic matter during the largest negative carbon isotope anomaly in the Ediacaran.

  1. Disc-shaped fossils resembling porpitids or eldonids from the early Cambrian (Series 2: Stage 4 of western USA

    Directory of Open Access Journals (Sweden)

    Bruce S. Lieberman

    2017-06-01

    Full Text Available The morphology and affinities of newly discovered disc-shaped, soft-bodied fossils from the early Cambrian (Series 2: Stage 4, Dyeran Carrara Formation are discussed. These specimens show some similarity to the Ordovician Discophyllum Hall, 1847; traditionally this taxon had been treated as a fossil porpitid. However, recently it has instead been referred to as another clade, the eldonids, which includes the enigmatic Eldonia Walcott, 1911 that was originally described from the Cambrian Burgess Shale. The status of various Proterozoic and Phanerozoic taxa previously referred to porpitids and eldonids is also briefly considered. To help ascertain that the specimens were not dubio- or pseudofossils, elemental mapping using energy dispersive X-ray spectroscopy (EDS was conducted. This, in conjunction with the morphology of the specimens, indicated that the fossils were not hematite, iron sulfide, pyrolusite, or other abiologic mineral precipitates. Instead, their status as biologic structures and thus actual fossils is supported. Enrichment in the element carbon, and also possibly to some extent the elements magnesium and iron, seems to be playing some role in the preservation process.

  2. Non-alcoholic beverages and risk of bladder cancer in Uruguay

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    Acosta Giselle

    2007-03-01

    Full Text Available Abstract Background Bladder cancer is the fourth most frequent malignancy among Uruguayan men. A previous study from Uruguay suggested a high risk of bladder cancer associated with maté drinking. We conducted an additional case-control study in order to further explore the role of non-alcoholic beverages in bladder carcinogenesis. Methods In the time period 1996–2000, 255 incident cases with transitional cell carcinoma of the bladder and 501 patients treated in the same hospitals and in the same time period were frequency matched on age, sex, and residence. Both cases and controls were face-to-face interviewed on occupation, tobacco smoking, alcohol drinking and intake of maté, coffee, tea, and soft drinks. Statistical analysis was carried out by unconditional multiple logistic regression. Results Ever maté drinking was positively associated with bladder cancer (odds ratio [OR] 2.2, 95% confidence interval [CI] 1.2–3.9 and the risk increased for increasing duration and amount of maté drinking. Both coffee and tea were strongly associated with bladder cancer risk (OR for coffee drinking 1.6, 95% CI 1.2–2.3; OR for tea drinking 2.3, 95% CI 1.5–3.4. These results were confirmed in a separate analysis of never-smokers. Conclusion Our results suggest that drinking of maté, coffee and tea may be risk factors for bladder carcinoma in Uruguay.

  3. Influence of sociodemographic characteristics on different dimensions of household food insecurity in Montevideo, Uruguay.

    Science.gov (United States)

    Rossi, Máximo; Ferre, Zuleika; Curutchet, María Rosa; Giménez, Ana; Ares, Gastón

    2017-03-01

    To determine the factor structure of the Latin American & Caribbean Household Food Security Scale (ELCSA) and to study the influence of sociodemographic characteristics on each of the identified dimensions in Montevideo, Uruguay. Cross-sectional survey with a representative sample of urban households. Household food insecurity was measured using the ELCSA. The percentage of respondents who gave affirmative responses for each of the items of the ELCSA was determined. Exploratory factor analysis was carried out to determine the ELCSA's factor structure. A probit model was used to determine the impact of some individual and household sociodemographic characteristics on the identified dimensions of food insecurity. Metropolitan area centred on Montevideo, the capital city of Uruguay, April-September 2014. Adults aged between 18 and 93 years (n 742). The percentage of affirmative responses to the items of the ELCSA ranged from 4·4 to 31·7 %. Two factors were identified in the exploratory factor analysis performed on data from households without children under 18 years old, whereas three factors were identified for households with children. The identified factors were associated with different severity levels of food insecurity. Likelihood of experiencing different levels of food insecurity was affected by individual characteristics of the respondent as well as characteristics of the household. The influence of sociodemographic variables varied among the ELCSA dimensions. Household income had the largest influence on all dimensions, which indicates a strong relationship between income and food insecurity.

  4. Fusarium and Aspergillus mycotoxins contaminating wheat silage for dairy cattle feeding in Uruguay.

    Science.gov (United States)

    Del Palacio, Agustina; Bettucci, Lina; Pan, Dinorah

    Wheat is one of the most important cultivated cereals in Uruguay for human consumption; however, when harvest yields are low, wheat is usually used in ensiling for animal feeding. Ensiling is a forage preservation method that allows for storage during extended periods of time while maintaining nutritional values comparable to fresh pastures. Silage is vulnerable to contamination by spoilage molds and mycotoxins because ensilage materials are excellent substrates for fungal growth. The aim of the study was to identify the mycobiota composition and occurrence of aflatoxins and DON from wheat silage. A total of 220 samples of wheat were collected from four farms in the southwest region of Uruguay were silage practices are developed. The main fungi isolated were Fusarium (43%) and Aspergillus (36%), with Fusarium graminearum sensu lato and Aspergillus section Flavi being the most prevalent species. Aflatoxin concentrations in silo bags ranged from 6.1 to 23.3μg/kg, whereas DON levels ranged between 3000μg/kg and 12,400μg/kg. When evaluating aflatoxigenic capacity, 27.5% of Aspergillus section Flavi strains produced AFB1, 5% AFB2, 10% AFG1 and 17.5% AFG2. All isolates of F. graminearum sensu lato produced DON and 15-AcDON. The results from this study contribute to the knowledge of mycobiota and mycotoxins present in wheat silage. Copyright © 2016 Sociedade Brasileira de Microbiologia. Published by Elsevier Editora Ltda. All rights reserved.

  5. Use of Reproductive Microhabitat by Melanophryniscus montevidensis (Anura: Bufonidae) from Uruguay.

    Science.gov (United States)

    Pereira, Gisela; Maneyro, Raúl

    2016-08-01

    This study describes the reproductive microhabitat of Melanophryniscus montevidensis and its use in two water bodies (WBs) in Barra de la Laguna de Rocha, Uruguay. Monthly field trips were performed between March 2012 and February 2013. Variables related to the WBs and vegetation, as well as parameters linked to the usage the amphibians make of the site (e.g: distance to the border of the pond, water depth and the vegetation use) were recorded. The behavior shown by the individuals during the breeding activity was recorded. This activity occurs in shallow temporary WBs with abundant hydrophilic vegetation. The individuals were found more frequently in areas near the edge of the pond, which has denser vegetation. The calling males were found closer to the border of the pond, and they showed better body condition than the non-calling males. In addition to calling activities, males used alternative tactics to find couples, such as active search of females, and aggressive behaviors, such as male displacing and physical combat. Such behaviors are common in anurans with explosive reproductive dynamics. The characterization of the reproductive microhabitats permits the proposal of strategies for the conservation of the species in Uruguay, given that the loss and fragmentation of habitats is one of the main causes considered for the decrease in their populations.

  6. [Proposals for health reform and equity in Uruguay: a redefinition of the Welfare State?].

    Science.gov (United States)

    Mitjavila, Myriam; Fernandez, José; Moreira, Constanza

    2002-01-01

    This article reviews and analyzes health sector reform proposals in Uruguay and the possible effects of such reforms in terms of equity, the health sector's institutional structure, and the power relationship between the various actors in the process. The authors contend that a highly structured yet simultaneously fragmented system has conspired against any attempt to introduce major reforms into the system. Thus the only possibility for reform resides neither in the consolidation of the so-called Institutions for Collective Medical Care (IAMCs) nor in the move towards a residual model. Rather, Uruguay is witnessing the system's passive restructuring (i.e., reform by default). In this context and given the system's built-in inequities, the current trend is towards an even more regressive distribution of goods and services. The authors use qualitative and quantitative techniques to show that inequities in expenditure, access, and quality have resulted from long-term developments and adaptive movements of an IAMC system in fiscal stress and the public system's declining quality. Thus, in the absence of changes in state policy that redefine the actors' power or in the absence of system collapse, the country should expect this same regressive trend to deepen.

  7. A Study of public policies for the management of the intangible cultural heritage in Uruguay.

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    Andrea Anon

    2016-03-01

    Full Text Available The present study aims to perform a review of the evolution of the intangible cultural heritage, to understand the difficulties and limitations that this heritage faces in the present. In a first moment, will present in the role that the State has maintained with this intangible heritage when even the category did not exist as such and the Convention for the Safeguarding of Intangible Heritage of UNESCO (2003 had not been ratified by Uruguay. Counting with this background will be analyzed the current regulations and decrees governing the field of intangible heritage to understand how different intangible expressions are conceived and managed. Since 2009, Uruguay has two elements declared by UNESCO as Intangible Heritage, the Tango and the Candombe. The second manifestation will be the conducting wire through which will be seen how over the years the expression was worked by the State. Through interviews with authorities from different institutions of intangible heritage and a thorough study of academic texts, the article seeks to understand the framework and the dispute between the Candombe and his interests and the State structure and their possibilities to manage and safeguard this heritage.

  8. Cannabis policy reforms in the Americas: a comparative analysis of Colorado, Washington, and Uruguay.

    Science.gov (United States)

    Pardo, Bryce

    2014-07-01

    Legal reforms in the Americas are influencing the public debate on cannabis policy. Uruguay and the two US states of Colorado and Washington have taken steps to regulate and legitimize the production, distribution, and use of cannabis and its derivatives. Earlier experiences with medical cannabis in the United States and limited access and production models in Europe have been insightful. However, these reforms are going further still, venturing into a new area of cannabis policy. A lack of empirical evidence regarding the effects of such reforms poses a challenge for policymakers. These examples will inform the design and implementation of any future cannabis policies. Therefore, a clear understanding of the details of each jurisdiction is necessary in developing future legal changes. Literature comparing the models of Uruguay, Colorado, and Washington is thin. This paper is based on an exhaustive examination of the laws, regulations, and discussions with regulators and functionaries of each jurisdiction. The research and analysis herein will provide policymakers with a greater understanding of the laws and regulations relevant to legal cannabis in these three jurisdictions, as well as draw to their attention some potential impacts and challenges of cannabis reform that require additional consideration to ensure public safety and health. Copyright © 2014 Elsevier B.V. All rights reserved.

  9. Breast cancer risk and genetic ancestry: a case-control study in Uruguay.

    Science.gov (United States)

    Bonilla, Carolina; Bertoni, Bernardo; Hidalgo, Pedro C; Artagaveytia, Nora; Ackermann, Elizabeth; Barreto, Isabel; Cancela, Paula; Cappetta, Mónica; Egaña, Ana; Figueiro, Gonzalo; Heinzen, Silvina; Hooker, Stanley; Román, Estela; Sans, Mónica; Kittles, Rick A

    2015-01-01

    Uruguay exhibits one of the highest rates of breast cancer in Latin America, similar to those of developed nations, the reasons for which are not completely understood. In this study we investigated the effect that ancestral background has on breast cancer susceptibility among Uruguayan women. We carried out a case-control study of 328 (164 cases, 164 controls) women enrolled in public hospitals and private clinics across the country. We estimated ancestral proportions using a panel of nuclear and mitochondrial ancestry informative markers (AIMs) and tested their association with breast cancer risk. Nuclear individual ancestry in cases was (mean ± SD) 9.8 ± 7.6% African, 13.2 ± 10.2% Native American and 77.1 ± 13.1% European, and in controls 9.1 ± 7.5% African, 14.7 ± 11.2% Native American and 76.2 ± 14.2% European. There was no evidence of a difference in nuclear or mitochondrial ancestry between cases and controls. However, European mitochondrial haplogroup H was associated with breast cancer (OR = 2.0; 95% CI 1.1, 3.5). We have not found evidence that overall genetic ancestry differs between breast cancer patients and controls in Uruguay but we detected an association of the disease with a European mitochondrial lineage, which warrants further investigation.

  10. Fusarium and Aspergillus mycotoxins contaminating wheat silage for dairy cattle feeding in Uruguay

    Directory of Open Access Journals (Sweden)

    Agustina del Palacio

    Full Text Available Abstract Wheat is one of the most important cultivated cereals in Uruguay for human consumption; however, when harvest yields are low, wheat is usually used in ensiling for animal feeding. Ensiling is a forage preservation method that allows for storage during extended periods of time while maintaining nutritional values comparable to fresh pastures. Silage is vulnerable to contamination by spoilage molds and mycotoxins because ensilage materials are excellent substrates for fungal growth. The aim of the study was to identify the mycobiota composition and occurrence of aflatoxins and DON from wheat silage. A total of 220 samples of wheat were collected from four farms in the southwest region of Uruguay were silage practices are developed. The main fungi isolated were Fusarium (43% and Aspergillus (36%, with Fusarium graminearum sensu lato and Aspergillus section Flavi being the most prevalent species. Aflatoxin concentrations in silo bags ranged from 6.1 to 23.3 µg/kg, whereas DON levels ranged between 3000 µg/kg and 12,400 µg/kg. When evaluating aflatoxigenic capacity, 27.5% of Aspergillus section Flavi strains produced AFB1, 5% AFB2, 10% AFG1 and 17.5% AFG2. All isolates of F. graminearum sensu lato produced DON and 15-AcDON. The results from this study contribute to the knowledge of mycobiota and mycotoxins present in wheat silage.

  11. Aplicación del fideicomiso en Uruguay. Protección de derechos de acreedores

    Directory of Open Access Journals (Sweden)

    Gonzalo Garmendia Vázquez

    2006-01-01

    Full Text Available The banking crisis of 2002 and the problems in the uruguayan capital market since 1998 ascribe importance to the theme of creditor´s rights protection. In adittion, the present context determines the necessity to develop diverse financial instruments to banking credit. It is in this framework that the Fideicomiso Law is approved in October 2003. Thus, the present article analizes the situation of creditor´s rights protection, an important element for an adequate utilization of Fideicomiso in Uruguay. We review the three elements that it includes: the normative precepts, the institutions that dictate and control them, and the efficiency of the Warranty´s System. The conclusion is that there are no particular problems with the precepts or with the efficiency of the Warranty´s System, a situation that is different with the institution that dictates and controls the normativity related to Fideicomiso, that is, the Central Bank of Uruguay.

  12. [Fiscal policy, affordability and cross effects in the demand for tobacco products: the case of Uruguay].

    Science.gov (United States)

    Carbajales, Alejandro Ramos; Curti, Dardo

    2010-01-01

    Uruguay, a country with a solid tobacco control policy since 2005 shows, contrary to expectations, an insignificant decrease in total tobacco products' sales in the last five years. The hypothesis is that on one side, changes in household income and the income elasticity of the demand for cigarettes were important countervailing factors in the demand of both products. The period 2005-2009 shows a large increase of 36% in household real income in Uruguay due to fast economic recovery after the 2002 crisis. The second factor is the interchangeability of roll your own and cigarettes and the impact on the demand of each product as a reaction to tax and price changes. The tax and price of roll your own tobacco remains substantially lower than that of cigarettes. This fact, and the increased substitution of roll your own for cigarettes seems to be the main reasons for the low impact of the policy of tobacco tax and price increases. This paper then consists of a revision of a 2004 study to estimate separate demands for both main tobacco products and obtain estimates for own price, cross price and income elasticities. Then, a simulation study was performed using the elasticities found and two scenarios of increases in household income: moderate (2.5% per year) and high (5% per year) confirming that countries where income is growing fast and with a potential for substitution towards cheaper products require substantial cigarette tax and price increases for a fiscal tobacco control policy to become effective.

  13. Spawning of migratory fish species between two reservoirs of the upper Uruguay River, Brazil

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    David A. Reynalte-Tataje

    Full Text Available This study investigated the migratory fish spawning within the reservoirs of the Machadinho and Itá dams (upper Uruguay River, Brazil and its relationship to environmental variables. Sampling was conducted in the lotic region of the river in two sites between the dams' reservoirs: Uruguay (main river and Ligeiro (tributary. Sampling included nine consecutive reproductive periods (RP spanning the period from 2001 to 2010 and was conducted at night on the water surface using cylindrical-conical plankton nets (0.5 mm mesh; environmental variables were also recorded. The spawning of the migratory species Salminus brasiliensis, Prochilodus lineatus, and Steindachneridion scriptum was registered: S. brasiliensis and P. lineatus spawned in the tributary river at the end of spring/beginning of summer, during flooding and during periods of high water temperature. Steindachneridion scriptum spawned in the main river at the beginning of spring. The study showed that S. brasiliensis, P. lineatus, and S. scriptum are able to spawn in small lotic river stretches within two reservoirs, but only under very specific and not common environmental conditions.

  14. Development and Climate Change in Uruguay. Focus on Coastal Zones, Agriculture and Forestry

    Energy Technology Data Exchange (ETDEWEB)

    Agrawala, S.; Moehner, A.; Gagnon-Lebrun, F. [OECD Environment Directorate, Organisation for Economic Co-operation and Development OECD, Paris (France); Van Aalst, M. [Utrecht University, Utrecht (Netherlands); Smith, J.; Hagenstad, M. [Stratus Consulting, Boulder, CO (United States); Baethgen, W.E.; Martino, D.L. [Carbosur Consulting, Montevideo (Uruguay); Lorenzo, E. [Instituto de Mecanica de los Fluidos e Ingenieria Ambiental IMFIA, Universidad de la Republica, Montevideo (Uruguay)

    2004-07-01

    This document is an output from the OECD Development and Climate Change project, an activity jointly overseen by the EPOC Working Party on Global and Structural Policies (WPGSP), and the DAC Network on Environment and Development Co-operation (ENVIRONET). The overall objective of the project is to provide guidance on how to mainstream responses to climate change within economic development planning and assistance policies, with natural resource management as an overarching theme. This report presents the integrated case study for Tanzania carried out under an OECD project on Development and Climate Change. This report presents the integrated case study for Uruguay carried out under an OECD project on Development and Climate Change. The report is structured around a three-tiered framework. First, recent climate trends and climate change scenarios for Uruguay are assessed and key sectoral impacts are identified and ranked along multiple indicators to establish priorities for adaptation. Second, donor portfolios are analyzed to examine the proportion of development assistance activities affected by climate risks. A desk analysis of donor strategies and project documents as well as national plans is conducted to assess the degree of attention to climate change concerns in development planning and assistance. Third, an in-depth analysis is conducted for adaptation in coastal zones as well as for mainstreaming carbonsequestration within the agriculture and forestry sectors.

  15. Documentation of subtype C HIV Type 1 strains in Argentina, Paraguay, and Uruguay.

    Science.gov (United States)

    Carrion, G; Eyzaguirre, L; Montano, S M; Laguna-Torres, V; Serra, M; Aguayo, N; Avila, M M; Ruchansky, D; Pando, M A; Vinoles, Jose; Perez, J; Barboza, A; Chauca, G; Romero, A; Galeano, A; Blair, P J; Weissenbacher, M; Birx, D L; Sanchez, J L; Olson, J G; Carr, J K

    2004-09-01

    HIV subtypes B, F, and BF recombinants have been previously reported in South America. This report describes the presence of HIV-1 subtype C infection in the countries of Argentina, Uruguay, and Paraguay dating back to at least 1999. Surveillance for uncommon non-B/non-F subtype viruses circulating in South America has been conducted in samples obtained from nine countries. Peripheral blood mononuclear cells (PBMC), dried filter paper (FP), and fresh blood (FB) samples were collected from HIV-positive patients from Ecuador, Colombia, Venezuela, Peru, Chile, Bolivia, Argentina, Uruguay, and Paraguay. From a total of 2962 HIV seropositive samples examined during a 9-year period (1995-2003), only 11 (0.4%) were found to be infected with non-B/non-F HIV variants. Eight of these 11 strains were determined to be subtype C by heteroduplex mobility assay (HMA). Five of these 8 strains were further characterized by sequencing and phylogenetic analysis of the protease (Pro) and reverse transcriptase (RT) region of the genome and two were sequenced full length. One of the strains was found to be a unique BC recombinant. The spread of a third subtype of HIV, subtype C, should raise the question of its potential future role in the HIV epidemic in this region.

  16. [Seroprevalence of antibodies against Trypanosoma cruzi in 13 departments of Uruguay].

    Science.gov (United States)

    Salvatella, R; Calegari, L; Casserone, S; Civila, E; Carbajal, S; Pérez, G; Somma, R; Sampaio, I; Llanes, M E; Conti, M

    1989-08-01

    In 1985 a study was undertaken of the prevalence of Trypanosoma cruzi antibodies in 13 departments of Uruguay where transmission of the parasite by the vector Triatoma infestans persists. A total of 5,924 serum samples were selected using a probabilistic method--3,840 from individuals over the age of 12 (sample I) and 2,084 from subjects who were 12 years old (sample II). The population was classified according to place of residence (capital city, non-capital city, suburban area, and rural area). The percentage of positive sera detected by indirect immunofluorescence in the different departments ranged from 1 to 11%, and overall seroprevalence for the area was 3.4%. Based on the results obtained, it was possible to distinguish three areas: A, with seroprevalence from 6 to 11%; B, 2 to 3.2%, and C, 1 to 1.4%. In sample II from the Departments of Paysandú, Soriano, Flores, Florida, and Durazno, no cases of Chagas' disease were detected, which suggests that there is no active transmission of T. cruzi in this age group in the area studied. The number of persons estimated to have the disease was 36,952, or 1.3% of the total population of Uruguay and 4% of the population in the area surveyed. These seroprevalence figures are similar to those recorded in the province of Entre Ríos, Argentina, and in the neighboring municipalities of Rio Grande do Sul, Brazil.

  17. Genetic heterogeneity and subtyping of human Hepatitis E virus isolates from Uruguay.

    Science.gov (United States)

    Mirazo, Santiago; Ramos, Natalia; Russi, José Carlos; Arbiza, Juan

    2013-05-01

    Hepatitis E virus (HEV) infection is an important public health concern in many developing countries causing waterborne outbreaks, as well as sporadic autochthonous hepatitis. It is transmitted primarily by the fecal-oral route. However, zoonotic transmission from animal reservoirs to human has also been suggested. Genotype 3 is the most frequent genotype found in South America and the HEV epidemiology in this region seems to be very complex. However, data about the molecular characterization of HEV isolates of the region is still lacking and further investigation is needed. Our study characterized human HEV strains detected in a 1-year period in Uruguay, by extensive sequence analysis of three regions of the HEV genome. Uruguayan strains were closely related to a set of European strains and in turn, were dissimilar to Brazilian, Argentinean and Bolivian isolates. Additionally, the co-circulation of viral subtypes 3i and 3h was observed. Circulation of subtype 3i had been reported in Argentina and Bolivia whereas sequences of subtype 3h are rare and had never been reported in Latin America. In order to contribute to shedding light over the molecular epidemiology of this emergent infection in the region, we thoroughly analyzed the genetic variability of HEV strains detected in Uruguay, providing the largest dataset of sequences of HEV ever reported in a country in South America. Copyright © 2013 Elsevier B.V. All rights reserved.

  18. Statute of Limitations in Uruguay and the ethical-political essence of the left

    Directory of Open Access Journals (Sweden)

    Ana Buriano

    2011-07-01

    Full Text Available This paper compares parties and citizen behavior in the referendum and plebiscite of 1989 and 2009 in Uruguay, concerning the derogation or repeal of articles of the amnesty law, as well as the unfinished epilogue of this process. This will allow us to observe a change in the axis-force that drives citizens' initiatives in the matter. While in 1989 the Frente Amplio (FA assumed and promoted the derogatory referendum, in 2009 the social organizations won the centrality of the scene. In that last year the negative position and subsequent support for the plebiscite campaign by the partisan left. Its virtual absence from the coalition generates doubts about the management of the demands concerning human rights and the ethical-doctrinal nature of the partisan left. Although in 2010 the FA tried to resume leadership, it was weakened by an internal dispute that resulted in contempt towards the legislative debate to neutralize the effects of the act. The civic, identity and perhaps political configuration of the XXI century Uruguay will depend on the resolution of this gap.

  19. The Tale of Two Civil Societies: Comparing disability rights movements in Nicaragua and Uruguay

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    Stephen Meyers

    2014-12-01

    Full Text Available The UNCRPD is unique amongst international rights instruments because it empowers civil society organizations to represent the rights-bearers themselves—persons with disabilities. As such, DPOs in the Global South have become a major concern for UN agencies and international NGOs who believe that grassroots disability associations need political advocacy training in order to take up their role as rights advocates. These expectations contain implicit assumptions regarding civil society-state relations and the existence of governmental capacity. The authors, however, hypothesize that not all civil societies will fit the rights advocacy model due to the political culture and public resources available within their respective, local communities. Disability movements in Nicaragua and Uruguay are compared and contrasted. In Nicaragua, a disability rights coalition dismisses many international expectations in favor for continuing to follow traditional civil society expectations to provide services. In Uruguay, a long history of high levels of social spending and disability organizing enabled DPOs to successfully advocate for progressive laws. The deaf community, however, decided to implement their own, separate advocacy strategies to ensure a fairer distribution of public resources. The authors conclude that rather than top-down civil society training, the international movement should allow local organizations set their own priorities.

  20. La imprescriptibilidad de los crímenes contra la humanidad en Uruguay

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    José Manuel Sánchez Patrón

    2014-06-01

    Full Text Available La ratificación del Convenio sobre la imprescriptibilidad de los crímenes de guerra y de los crímenes de lesa humanidad por parte de Uruguay, constituye un primer paso dirigido a limitar la impunidad de los partícipes en la comisión de estas infracciones internacionales. Para la consecución de esta misma finalidad, el Estado Uruguayo ha dado un segundo paso, consistente en la ratificación del Estatuto de la Corte Penal Internacional, lo que ha llevado a efecto casi un año después del anterior. Ambas decisiones demuestran la intención de Uruguay de comprometerse Internacionalmente con el fin de evitar la impunidad de los responsables de la comisión de determinadas figuras delictivas, especialmente los crímenes de guerra y los crímenes contra la humanidad, ya que en tomo a estas dos infracciones internacionales gravitan los convenios internacionales a los que nos acabamos de referir.Contenido: imprescriptibilidad de los crímenes contra la humanidad en el pasado. Imprescriptibilidad de los crímenes contra la humanidad en el presente. Imprescriptibilidad de los crímenes contra la humanidad en el futuro. Conclusiones

  1. Impacto de advertencias sanitarias del empaquetado de cigarros: un análisis comparativo en Brasil, Uruguay y México Assessing the impact of cigarette package health warning labels: a cross-country comparison in Brazil, Uruguay and Mexico

    Directory of Open Access Journals (Sweden)

    James F Thrasher

    2010-01-01

    Full Text Available Objetivo. Evaluar el impacto de diferentes advertencias sanitarias (AS. Material y métodos. Se analizaron datos de la Encuesta Internacional para el Control del Tabaco (ITC Survey, un estudio de fumadores adultos en Brasil, Uruguay y México, tres países con distintas AS (con imágenes de sufrimiento humano y órganos enfermos; con imágenes abstractas del riesgo; mensajes de solo texto, respectivamente. Se analizó prominencia e impacto cognitivo de las AS. Resultados. Las AS de Uruguay (que era el único país con AS en la parte frontal del paquete tuvieron una mayor prominencia que en Brasil o México. En México, la gente que tenía un nivel de educación mayor eran mas propensos a leer mensajes de advertencia, mientras que educación no se asoció con prominencia en Brasil o Uruguay. Las AS de Brasil tuvieron un mayor impacto cognitivo y conductual que las AS de Uruguay o México. Las AS de Uruguay generaron un menor impacto cognitivo y conductual que las AS de sólo texto en México. En Brasil, los impactos cognitivos fueron los más fuertes entre fumadores con un bajo nivel educacional. Conclusiones. Este estudio sugiere que las AS tienen el mayor impacto cuando son prominentes (por ej. en el frente y la parte trasera del paquete e incluyen imágenes emocionalmente llamativas que muestran impactos negativos en el cuerpo o sufrimiento humano debido al fumar.Objective. To assess the impact of different health warning labels (HWL. Material and Methods. Data from the International Tobacco Control Survey (ITC Survey were analyzed from adult smokers in Brazil, Uruguay and Mexico, each of which used a different HWL strategy (pictures of human suffering and diseased organs; abstract pictorial representations of risk; and text-only messages, respectively. Main outcomes were HWL salience and cognitive impact. Results. HWLs in Uruguay (which was the only country with a HWL on the front of the package had higher salience than either Brazilian or

  2. Educación bilingüe de frontera y políticas lingüísticas en Uruguay Bilingual education at the Uruguayan-Brazilian border and language policies in Uruguay

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    Claudia Brovetto

    2010-12-01

    Full Text Available El Uruguay no es una sociedad lingüísticamente homogénea hablante de español. El bilingüismo español-portugués que se consigna en una amplia zona del noreste de Uruguay es un ejemplo de esta realidad. Recientemente, y de un modo bastante innovador para la tradición de las políticas lingüísticas en el Uruguay (o para la falta de ellas, esta realidad sociolingüística ha sido tomada en cuenta con programas educativos específicos. Este artículo presenta un análisis de estos programas, sus antecedentes, objetivos y resultados preliminares, así como un análisis primario de dos documentos que constituyen actos de políticas lingüísticas en el Uruguay: la nueva Ley de Educación y el nuevo Programa de Educación Inicial y Primaria.Uruguayan society is not linguistically homogeneous in that not all its population speaks Spanish. The bilingualism present in the northeast of Uruguay is an example of this reality. Recently, in a quite innovative way for the Uruguayan traditions in language policies (or for the lack of them, this sociolinguistic reality has been considered through the implementation of specific educational programs. This paper presents an analysis of these programs, their antecedents, goals and preliminary results. It also presents an initial analysis of two documents that are events in Uruguayan language policies: the recently approved Law of Education and the new official Curriculum for Primary Schools.

  3. The utopia of democracy in Uruguay. Between the nostalgia about the past and the refutation of history La utopía de la democracia en uruguay. Entre la nostalgia del pasado y el desmentido de la historia

    Directory of Open Access Journals (Sweden)

    Fernando AÍNSA AMIGUES

    2009-04-01

    Full Text Available Uruguay has a long tradition of democracy that is associated to the Welfare State built at the beginning of the XX Century. In the sixties started a period of crisis and decadence, which had its worst moment during the period of the dictatorship (1973-1984. Uruguay lives since then with the nostalgia of what «has been», the impossible utopia of the past.

    RESUMEN: Uruguay tiene una larga tradición democrática unida a la del desarrollo de un Estado de bienestar instaurado a principios del siglo XX y prolongado hasta la década de 1960, cuando el sistema entró en crisis. En este ensayo se analiza el contenido utópico de esa democracia, sus carencias, la crisis, el proceso de su decadencia, el período de la dictadura (1973-1984 y la nostalgia del «país que fue» que ha marcado la política del restablecimiento de la institucionalidad en 1985 hasta nuestros días.

    ABSTRACT: Uruguay has a long tradition of democracy that is associated to the Welfare State built at the beginning of the XX Century. In the sixties started a period of crisis and decadence, which had its worst moment during the period of the dictatorship (1973-1984. Uruguay lives since then with the nostalgia of what «has been», the impossible utopia of the past.

  4. Sustainability of meat production beyond carbon footprint: a synthesis of case studies from grazing systems in Uruguay

    NARCIS (Netherlands)

    Picasso, V.D.; Modernel Hristoff, P.D.; Becona, G.; Salvo, L.; Gutierrez, L.; Astigarraga, L.

    2014-01-01

    Livestock production has been challenged as a large contributor to climate change, and carbon footprint has become a widely used measure of cattle environmental impact. This analysis of fifteen beef grazing systems in Uruguay quantifies the range of variation of carbon footprint, and the trade-offs

  5. Grain Yield Variation in Malting Barley Cultivars in Uruguay and Its Consequences for the Design of a Trials Network

    NARCIS (Netherlands)

    Ceretta, S.S.E.; Eeuwijk, van F.A.

    2008-01-01

    The efficiency of cultivar trial networks is an important subject in official cultivar testing. We investigated this efficiency for malting barley (Hordeum vulgare L.) in Uruguay, using data on 213 cultivars tested across an eight-year period at six locations. The variance-components approach was

  6. Exploring options for sustainable farming systems development for vegetable family farmers in Uruguay using a modeling toolkit

    NARCIS (Netherlands)

    Casagrande, M.; Dogliotti, S.; Groot, J.C.J.; Aguerre, V.; Abbas, A.; Albin, A.; Claassen, G.D.H.; Chilibroste, P.; Rossing, W.A.H.

    2010-01-01

    Economic and environmental sustainability of family-based vegetable production systems in south Uruguay are seriously compromised after two decades of net decreasing prices and strategies based on specialization and intensification. This paper presents a model-based exploration of alternative

  7. Situation Report--Argentina, Colombia, Cyprus, Kuwait, Lebanon, Libyan Arab Republic, Oman, Syrian Arab Republic, and Uruguay.

    Science.gov (United States)

    International Planned Parenthood Federation, London (England).

    Data relating to pupulation and family planning in nine foreign countries are presented in these situation reports. Countries included are Argentina, Colombia, Cyprus, Kuwait, Lebanon, Libyan Arab Republic, Oman, Syrian Arab Republic, and Uruguay. Information is provided under two topics, general background and family planning situation, where…

  8. "Let the "Orientales" Be as Enlightened as They Are Brave": The Digital Divide in the Context of Uruguay's Public Schools

    Science.gov (United States)

    Capurro, Rafael; Rodríguez Fleitas, Maximiliano

    2017-01-01

    In this paper we present two recent information literacy and access initiatives in Uruguay and their necessary historical antecedents, and analyze them from a phenomenological perspective to provide commentary on current philosophical discussions about information and the digital divide. To provide historical context we present a brief history of…

  9. The Battle Era and Labor in Uruguay and U.S. Low-Intensity in Conflict Policy in Latin America

    Science.gov (United States)

    1990-05-01

    change to satisfy the more 13 0 For a capitulation of the genesis of this legislation see Comision Departamental del Partido Nacional, Al Autor de la...Montevideo: Renacimiento, 1914-1918. Comision Departamental del Partido Nacional. El Autor de la Primera Legislacion Obrera en el Uruguay. Montevideo, 1928

  10. Rickettsia parkeri: a Rickettsial pathogen transmitted by ticks in endemic areas for spotted fever rickettsiosis in southern Uruguay

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    José M. Venzal

    2012-06-01

    Full Text Available At first Rickettsia conorii was implicated as the causative agent of spotted fever in Uruguay diagnosed by serological assays. Later Rickettsia parkeri was detected in human-biting Amblyomma triste ticks using molecular tests. The natural vector of R. conorii, Rhipicephalus sanguineus, has not been studied for the presence of rickettsial organisms in Uruguay. To address this question, 180 R. sanguineus from dogs and 245 A. triste from vegetation (flagging collected in three endemic localities were screened for spotted fever group (SFG rickettsiosis in southern Uruguay. Tick extracted DNA pools were subjected to PCR using primers which amplify a fragment of the rickettsial gltA gene. Positive tick DNA pools with these primers were subjected to a second PCR round with primers targeting a fragment of the ompA gene, which is only present in SFG rickettsiae. No rickettsial DNA was detected in R. sanguineus. However, DNA pools of A. triste were found to be positive for a rickettsial organism in two of the three localities, with prevalences of 11.8% to 37.5% positive pools. DNA sequences generated from these PCR-positive ticks corresponded to R. parkeri. These findings, joint with the aggressiveness shown by A. triste towards humans, support previous data on the involvement of A. triste as vector of human infections caused by R. parkeri in Uruguay.

  11. A method for exploring sustainable development options at farm scale: a case study for vegetable farms in South Uruguay

    NARCIS (Netherlands)

    Dogliotti Moro, S.; Ittersum, van M.K.; Rossing, W.A.H.

    2005-01-01

    The methodology presented in this paper aims at analysing whether there is room for improvement of vegetable farmers¿ income in Canelón Grande (Uruguay), while reducing soil erosion and improving physical and biological soil fertility, and to gain insight in the influence of farmers¿ resource

  12. Psicología, política y sociedad en Argentina y Uruguay : Simposio por invitación

    OpenAIRE

    Talak, Ana María

    2013-01-01

    El Simposio se propone analizar diferentes desarrollos de la psicología en dos países, Argentina y Uruguay, en relación con el orden social vigente y diferentes dimensiones políticas que se ponen en juego en forma explícita e implícita.

  13. Aspectos técnicos da psicoterapia de grupo

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    Bernardo Blay Neto

    1959-09-01

    Full Text Available São estudados os mecanismos psíquicos que se desenvolvem em agrupamentos humanos e a sua utilização para fins terapêuticos, sendo focalizado o fenômeno da interação como o dinamismo básico dessas reações. O autor compara a forma pela qual encara o grupo com as idéias de Bion, Moreno e Sullivan, encarando a hipótese de que os sentimentos de amor e hostilidade se manifestem em função do bom ou do mau funcionamento dos contactos primários que caracterizam a dependência. O autor comenta resultados que obteve usando o psicodrama, mediante o qual estudou reações emocionais de inveja, ódio, agressividade e amor. O autor analisa as técnicas de Slavson e Pratt baseando-se nos dinamismos inerentes ao grupo e refere os estudos de Beukemkamp para a compreensão do fenômeno transferenciai que, no grupo, tem características próprias. As diferenças entre a terapia de grupo e a individual são apontadas, sendo a contra-transferência considerada como elemento construtivo. Pensa o autor que o aspecto dramático vivenciado pelo grupo ou por um dos seus componentes tem alto valor, pois engloba a verbalização, os componentes emocionais e os componentes posturais. O tono emocional vivenciado pelo grupo é mais intenso e opressivo que o que é despertado na terapêutica individual, o que é explicável pela somação de efeitos provocada pela reação circular. Segundo o autor, a Psicoterapia de Grupo e a Psicoterapia Individual não se opõem, mas se completam.

  14. Celebración de la independencia de 1825: los comerciantes británicos a través del "Libro del Centenario del Uruguay", de 1925

    OpenAIRE

    Mariani Pérez, Alba Amelia

    2014-01-01

    El Libro del Centenario del Uruguay 1825-1925, es una selección temática útil para conocer al Uruguay en asuntos socioeconómicos, políticos y culturales a fines del siglo XIX y hasta 1925. Su uso hace posible arribar a estudios profundos, no abordados por historiadores y crear una historiografía contemporánea del período. El repertorio documental es de jerarquía, aplicado con método se arriba a temas poco conocidos. The Centennial Book of Uruguay 1825-1925 is a useful thematic selection...

  15. The Teaching of Astronomy in Uruguay. (Spanish Title: La Enseñanza de la Astronomía en Uruguay.) O Ensino da Astronomia no Uruguai

    Science.gov (United States)

    Pintos Ganón, Reina; Fernández, Julio Angel

    2008-07-01

    We present in this work the development of astronomy in Uruguay since the colony times up to the present, stressing in particular those aspects related to the formal as well as informal teaching of astronomy. The first antecedents of astronomical studies in our country go back to the beginnings of the XVIIIth century related to the scientific expeditions from Europe coming to our shores. The teaching of astronomy was generalized at the high school level as soon as the end of the XIXth century, while itsintroduction at the university level happened much later, around the middle of the last century. We analyze the current situation of this subject, its problems, and some measures to strengthen its development. Se presenta en este trabajo el desarrollo de la astronomía en el Uruguay desde la época colonial hasta el presente, destacando en particular los aspectos vinculados a su enseñanza tanto formal como informal. Los primeros antecedentes de estudios astronómicos datan de la época colonial relacionados con las expediciones científicas del Viejo Mundo que llegaban a nuestras costas. La enseñanza de la Astronomía se generalizó en el ámbito de los estudios secundarios ya a fines del siglo XIX, mientras que en la Universidad su arribo fue mucho más tardío, a mediados del siglo pasado. Se analiza la situación actual de esta disciplina, sus problemas, y algunas medidas para fortalecer su desarrollo. Apresentamos, neste trabalho, o desenvolvimento da Astronomia no Uruguai desde a época colonial até o presente, destacando em particular os aspectos vinculados ao seu ensino tanto formal quanto informal. Os primeiros antecedentes de estudos astronômicos em nosso país datam da época colonial relacionados com as expedições científicas do Velho Mundo que chegavam às nossas costas. O ensino da Astronomia se generalizou no âmbito dos estudos secundários já no final do século XIX, enquanto que sua introdução na universidade foi muito mais tardia, em

  16. Modeling Electoral Coordination: Voters, Parties and Legislative Lists in Uruguay Modelando la Coordinación Electoral: Votantes, Partidos y Listas Legislativas en Uruguay

    Directory of Open Access Journals (Sweden)

    Ines Levin

    2011-01-01

    Full Text Available During each electoral period, the strategic interaction between voters and political elites determines the number of viable candidates in a district. In this paper, we implement a hierarchical seemingly unrelated regression model to explain electoral coordination at the district level in Uruguay as a function of district magnitude, previous electoral outcomes and electoral regime. Elections in this country are particularly useful to test for institutional effects on the coordination process due to the large variations in district magnitude, to the simultaneity of presidential and legislative races held under different rules, and to the reforms implemented during the period under consideration. We find that district magnitude and electoral history heuristics have substantial effects on the number of competing and voted-for parties and lists. Our modeling approach uncovers important interaction-effects between the demand and supply side of the political market that were often overlooked in previous research.En cada período electoral, votantes y élites interactúan para determinar el número de agentes políticos postulados para la elección, así como el número de agentes políticos que reciben apoyo de los votantes. En este artículo, modelamos la interacción entre votantes y élites usando un modelo jerárquico de regresiones aparentemente no relacionadas, explicando la coordinación electoral a nivel de distrito en el Uruguay en función de la magnitud del distrito, resultados de elecciones anteriores, y régimen electoral. Las elecciones en este país son particularmente útiles para el estudio de los determinantes institucionales de la coordinación electoral debido a la amplia variación en la magnitud de los diferentes distritos, a la simultaneidad de las elecciones presidenciales y legislativas reguladas por normas electorales diversas, y a las reformas que tuvieron lugar durante el período bajo consideración. Encontramos que la

  17. The Sirius Passet Lagerstätte: silica death masking opens the window on the earliest mat ground community of the Cambrian Explosion

    NARCIS (Netherlands)

    Strang, Katie M; Armstrong, Howard; Harper, David A. T.; Trabucho-Alexandre, João

    2016-01-01

    The Sirius Passet Lagerstätte (SP), Peary Land, North Greenland, occurs in black slates deposited at or just below storm wave base. It represents the earliest Cambrian microbial mat community with exceptional preservation, predating the Burgess Shale by 10 million years. Trilobites from the SP are

  18. The role of LATU as national metrology institute of Uruguay and its responsibilities

    Science.gov (United States)

    Robatto, O.; Quagliata, E.; Santo, C.; Sica, A.; Sponton, M.

    2013-09-01

    Laboratorio Tecnológico del Uruguay (LATU) is the National Metrology Institute of Uruguay and has the obligation to maintain the national standards stated by National Law 15298. At present LATU is acting as a secondary laboratory as well as a primary laboratory. LATU was ISO 17025:2005 DKD (Deutscher Kalibrierdienst) accredited from 2001 up to 2007. By that time LATU decided to support its Capabilities of Measurement and Calibration (CMCs) at CIPM-MRA (Mutual Recognition Arrangement between national metrology institutes (NMIs)) by peer assessment. A Peer Review has been done in 2008 in order to get the QSTF (Sistema Interamericano de Metrología, Quality System Task Force) approval. "New "CMCs for Industrial Thermometers have been approved by the JCRB on September 2010. CMCs claimed for Standard Resistance Platinum Thermometers (SPRTs) calibration at fixed points have not been approved yet because there were some requirements of traceability of employed cells that were not fulfilled but will be solved properly. The declared CMCs have been chosen by LATU in order to cover the increasing calibration services required by the industry and the secondary calibration laboratories. To demonstrate its technical competence an support its declared "CMCs" LATU has also participated at bilateral and regional comparisons. In recent years LATU, the National Accreditation Body (OUA), the Standards Institute, the National Institute of Quality and Compliance Bodies have become Members of a new Institution to strengthen the Quality Infrastructure of the country (SUNAMEC). As part of this new activities, LATU is giving training courses to the secondary laboratories performing calibrations in temperature that want to get accredited by the National Accreditation Body and to act as Technical Evaluators or Auditors when required by OUA. It is expected, that in the future and in the frame of new accredited and recognized temperature calibration laboratories, LATU could strengthen its

  19. Recent changes in frost days events characteristics in Uruguay-Southeastern South America.

    Science.gov (United States)

    Renom, Madeleine; De Mello, Santiago

    2015-04-01

    There are few studies about extreme temperature events in Southeastern South America as is it mentioned in the SREX report (2009), although these events generate human health impacts and big economical looses. Southeastern South America is one of the major agricultural production regions worldwide. Particularly in Uruguay, agricultural production represents a high percentage of the GDP and, in the last 15 years there has been a significant increase in the area used for that economic activity. Although frost is not always is considered as an extreme event it causes, in the case of Uruguay, an impact on society, energy consumption and agricultural losses. Previous studies have shown a negative trend in the occurrence of cold nights (TN10) during winter (June-July-August) and autumn (March-April-May) in Uruguay. This work try to determine if these trends affects the occurrences and characteristics of frost days (Tminpercentile based index (TN10) and a fixed index (FD). At monthly scale, May and September show a negative trend, although these months present a low number of cases that difficult the statistical treatment. It is noticeable that from a decadal point of view the last decade (2000-2009) was the decade with fewer occurrences comparing with the rest, while the 90's is the decade that presents more cases. We also analyzed changes in frost period (FP) which commonly extends from May to September. In general all the stations present a decrease in the FP in accordance with the negative trend detected at monthly scale, suggesting a warming in autumn and spring time. Although we detected different behaviour in two stations, one located inner land and the other located on the Atlantic coast of the country. The former presents a linear trend in the FP, while the other shows a decadal variability. Regarding the frost intensity we analysed the consecutive frost days (CFD) index, which shows that the usual length is around 2-4 days. The decadal analysis shows that during

  20. Breast cancer early detection and quality assurance in Uruguay; Deteccion precoz de cancer de mama e garantia de calidad en Uruguay

    Energy Technology Data Exchange (ETDEWEB)

    Cotelo, Elena D. [Universidad de la Republica, Montevideo (Uruguay). Facultad de Medicina. Escuela Universitaria de Tecnologia Medica]. E-mail: elecote@adinet.com.uy

    2001-07-01

    In Uruguay, breast cancer incidence is 76.41 per 100.000, and death rate is 25.22 per 100.000. Since 1998, there is a National Programme of breast cancer early detection for females over forty years of age. We studied the state of the mammography facilities throughout the country. There are 657.000 female over forty and 51 mammography X-ray equipment. The Programme includes 2 mammography X-ray equipment in mobile units in the capital and 18 in hospitals all around the country. There are taken 120.000 mammographic exams per year, 15.000 of them belong to women who had participated in the Programme. We found that no mammography facility has established Quality Assurance Programmes. Despite the results of this study showed that is suitable the number and age of the mammography X-ray equipment, the lack of Quality Assurance Programmes will produce, in a short time, a negative cost-benefit balance. The consequences will be serious social, human an economical damages. (author)

  1. A Cambrian intra-oceanic subduction system in the Bozshakol area, Kazakhstan

    Science.gov (United States)

    Shen, Ping; Pan, Hongdi; Seitmuratova, Eleonora; Yuan, Feng; Jakupova, Sholpan

    2015-05-01

    adakites. Therefore, Bozshakol intrusive rocks were also derived from the mantle wedge and minor slab melts. We propose a model of intra-oceanic subduction for the Middle to Late Cambrian magmatic evolution of magmatic arcs in northwestern central Kazakhstan.

  2. Composition and origin of Early Cambrian Tiantaishan phosphorite-Mn carbonate ores, Shaanxi Province, China

    Science.gov (United States)

    Hein, J.R.; Fan, D.; Ye, J.; Liu, T.; Yeh, H.-W.

    1999-01-01

    The Tiantaishan phosphorite-Mn carbonate ores occur in the Early Cambrian Tananpo Formation in complexly folded and faulted rocks located in southern Shaanxi Province. About 65 x 106 tonnes of 17% P2O5 ore reserves exist and Mn-ore reserves are about 8.3 x 106 tonnes of +18% Mn. The stratigraphic sequence in ascending order consists of black phyllite, black to gray phosphorite ore, black phyllite, rhodochrostone ore, Mn mixed-carbonates, and dolostone. Data are presented from microprobe mineral chemistry, whole-rock chemistry, stable isotopes of carbonates, X-ray mineralogy, petrographic and SEM observations, and statistical analysis of chemical data. The dominant ore-forming minerals are hydroxy- and carbonate fluorapatite and Ca rhodochrosite, with Mg kutnahorite and dolomite comprising the Mn mixed-carbonate section. Pyrite occurs in all rock types and alabandite (MnS) occurs throughout the rhodochrostone section. The mean P2O5 content of phosphorite is 31% and argillaceous phosphorite is 16%, while the mean MnO content of rhodochrostone ore is 37%. Phosphorite ores are massive, spheroidal, laminated, and banded, while rhodochrostone ores have oolitic, spheroidal, and granular fabrics. The most distinguishing characteristics of the ores are high total organic carbon (TOC) contents (mean 8.4%) in the phosphorite and high P2O5 contents (mean 2.7%) in the rhodochrostone ore. The atypically high TOC contents in the Tiantaishan phosphorite probably result from very strong productivity leading to high sedimentation rates accompanied by weak reworking of sediments; poor utilization of the organic matter by bacteria; and/or partial replacement of bacterial or algal mats by the apatite. The depositional setting of the ores was the margin of an epicontinental seaway created as a direct consequence of global processes that included break-up of a supercontinent, formation of narrow seaways, creation of extensive continental shelves, overturn of stagnant, metal-rich deep

  3. Middle to late Cambrian shallow marine trace fossils from the Imfout Syncline (Western Meseta, Morocco): Palaeoecological and palaeoenvironmental significance in NW-Gondwana

    Science.gov (United States)

    Oukassou, Mostafa; Lagnaoui, Abdelouahed; Raji, Mohammed; Michard, André; Saddiqi, Omar

    2017-05-01

    The present research provides the first evidence of invertebrate activity assigned to the ichnogenus Selenichnites occurring together with moderately diverse ichnofossils from the middle to late Cambrian of the Moroccan Meseta. The invertebrate traces occur in sandstone strata of the El Hank Formation within the Imfout Syncline, in the northern part of the Rehamna Massif (Coastal Block, western Moroccan Meseta). Bedding surfaces from the top of the El Hank Formation near the Imfout Dam show diverse forms of current ripples and distincts crescentic ichnofossils in concave epirelief scattered on the surface. In this section, the traces provide evidence of the ethology of an organism inhabiting the relatively shallow waters of the area during this time. Selenichnites co-occurs with the ichnogenera Arenicolites, Diplocraterion, Lingulichnus, Monocraterion, Skolithos and unidentified burrows, and the ichnoassemblage is referred to the Skolithos ichnofacies. These traces can be referred to arthropods (e.g. polychaete worms and amphipod crustaceans), lingulid brachiopods, annelids and/or phoronids. The Imfout Selenichnites represents the first occurrence of this ichnogenus from the Cambrian of the Moroccan Meseta, and the second from the Cambrian deposits of Morocco. The potential tracemakers are still questionable, but were most likely xiphosurans, trilobites, euthycarcinoids or crustaceans. If so, the Imfout traces could be among the oldest pieces of evidence for the presence of horseshoe crabs during the Cambrian. The combination of sedimentological and ichnological data indicates that the El Hank Formation was deposited in a sublittoral soft ground environment next to a sandy shore. It was originally part of an early Palaeozoic shallow marine epicontinental platform in west-central Morocco. In addition to the equivalent Cambrian deposits from the Anti-Atlas, the El Hank Formation constituted a part of the northern Gondwana platform domain during the transgression

  4. ACCIONES DE GRUPOS SOBRE EL ESPACIO DE RIEMANN-ROCH

    OpenAIRE

    VASQUEZ LATORRE, DANIELA

    2013-01-01

    Sea G un grupo finito de automorfismos de una curva proyectiva suave X, sobre el cuerpo de los números complejos, y D un divisor no especial de X invariante bajo la acción de G. En este trabajo estudiaremos el problema de descomposición de la representación natural del grupo G en el espacio de Riemann-Roch L(D), asociado al divisor D. Presentaremos fórmulas explícitas para la multiplicidad de cada factor irreducible, en términos de la multiplicidad de estos factores en la descompo...

  5. Fuentes de financiamiento legales e ilegales de grupos terroristas hoy

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    Gema Sánchez Medero

    2011-06-01

    Full Text Available En el artículo se analizan como se financian en el mundo actual los grupos terroristas, como logran transferir ese dinero y que medidas se han adoptado para prevenir y bloquear estas fuentes de financiación legales e ilegales. Tal vez, este punto sea uno de los menos estudiados por los especialistas en la materia, pero resulta de vital importancia, porque las organizaciones terroristas, como las demás organizaciones, necesitan de una serie de recursos para mantenerse y desarrollar sus actividades, de ahí que sea fundamental conocer como se financian estos grupos para poder combatirles y ponerles coto.

  6. Grupos cristalográficos e orbifolds euclidianos bidimensionais

    OpenAIRE

    Lopes, Isabel Cristina da Silva

    2004-01-01

    O tema central deste trabalho é a construção de modelos que permitam a visualizaçãodos padrões de simetria que estão associados aos 17 orbifolds euclidianos de dimensão 2.Um orbifold é visto aqui como o quociente de uma variedade por um grupo que age deforma propriamente descontínua, na verdade, um grupo cristalográfico, constituindo umageneralização do conceito de variedade, devido a permitir singularidades, tais como picos,espelhos ou esquinas provenientes de revestimentos ramificados.Os mo...

  7. Legalizing a market for cannabis for pleasure: Colorado, Washington, Uruguay and beyond.

    Science.gov (United States)

    Room, Robin

    2014-03-01

    Colorado, Washington state and Uruguay are currently designing legal non-medical markets for cannabis. These clearly contravene the 1961 and 1988 drug conventions; options for what may happen next are discussed. The current provisions in the three regulatory schemes are summarized. From a public health perspective, the emphasis should be on holding down consumption with regulatory measures, but the public health agenda does not seem to be a strong consideration in the implementation of the US schemes, and they are paying little attention to what can be learned from the history of alcohol and tobacco regulation. While alternative paths to a cannabis market under the conventions are noted, the legalization initiatives underline the need to revise the drug conventions, making prohibition of domestic markets an optional matter. Such changes would also ease the path for including alcohol under the conventions, which would be an important step forward in global health. © 2013 Society for the Study of Addiction.

  8. Health professionals and abortion: transitions and disputes in Uruguay (2000-2012

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    Alejandra López Gomez

    2016-03-01

    Full Text Available Unsafe and illegal abortion is a critical issue in most countries at Latin America and the Caribbean region. The recognition of sexual and reproductive rights as human rights that is observed in the international, regional and national levels has not been exempt from conflicts. The Uruguayan case provides important evidence in this regard. The thesis examines health professionals’ perceptions and perspectives related to their care practices with women and abortion in a legal context that considered abortion as a crime, between 2002 and 2012 in Uruguay. The results allow us to understand the complex relationship between the different levels involved in the policy process. Health professionals’ practices are an analyzer of the covenants and conflicts that are recorded in the social field.

  9. Body and Psychiatric Discourse in the Early Twentieth Century in Uruguay: Insufficiency, Weakness and Adaptation

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    Agustina Craviotto Corbellini

    2016-08-01

    Full Text Available This study analyzes the psychiatric medical discourse and experimental psychology during the twentieth century in Uruguay, as expert knowledge on children and as referents of the pedagogic discourse of that period. As an introduction some key elements of psychiatry in the country are presented; from them, it is stuyed how the dysfunction of the body became the focus of analysis that led to a series of school children´s classifications. The relationship of the dysfunctional body with school learning is at the core of the reflection, and indiscipline and mental weaknesses are taken as elements articulating the psychiatric and psychological discourses with the pedagogical one, through the notion of adjustment disorder.

  10. Catolicismo y Protestantismo en los inicios del Uruguay moderno (1876-1880

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    Sebastián Hernández Méndez

    Full Text Available Durante los años de gobierno del coronel Lorenzo Latorre (1876-1880, Uruguay vivió un intenso debate sobre la legitimidad de la religión, su función en la sociedad moderna, y el papel que hasta entonces venía desempeñando la Iglesia Católica como institución modeladora de cultura. El presente trabajo busca atender las principales notas de esa discusión que mantuvieron en particular católicos y metodistas, al tiempo que analiza las distintas respuestas ensayadas por la Iglesia Católica para enfrentar el proselitismo disidente.

  11. Characterization of home gardens in northern Uruguay and methodology for its diagnosis

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    Ignacio Traversa

    2013-06-01

    Full Text Available An ecological, productive and social diagnosis of homegardens in Northern Uruguay is displayed in this paper, as well as methodology to achieve it, that could be used in other similar systems. The fieldwork consisted of interactive surveys to producers and field inventories for gathering information on the social, technical, productive and ecologicalaspects of green orchards. . A map of the orchards was done by using a Geographic Information System (GIS. The homegarden is organic, aligned along the minor and major roads and forms cluster cores at the interface between the urban and peri-urban areas. The prospects of the orchards are limited for socio-cultural reasons. Species biodiversity reached a total amount of 187 and an average of 23 species per orchard. Policies are needed for rescueing inherited knowledge that will keep homegardens alive.

  12. Genetic characterization of the Neotropical catfish Pimelodus maculatus (Pimelodidae, Siluriformes) in the Upper Uruguay River

    Science.gov (United States)

    Ribolli, Josiane; de Melo, Cláudio Manoel Rodrigues; Zaniboni-Filho, Evoy

    2012-01-01

    Freshwater fish present unique challenges when one attempts to understand the factors that determine the structure of their populations. Habitat fragmentation is a leading cause of population decline that threatens ecosystems worldwide. In this study, we investigated the conservation status of genetic variability in the Neotropical catfish (Pimelodus maculatus). Specifically, we examined the structure and genetic diversity of this species in a region of the Upper Uruguay River fragmented by natural barriers and dams. There was no genetic structure among the four sites analyzed, indicating the existence of only one population group. A combination of environmental management and genetic monitoring should be used to minimize the impact of impoundment on panmitic populations of migratory fish species. PMID:23271936

  13. Experiencias de trabajo con varones que ejercen violencia hacia las mujeres en Uruguay

    OpenAIRE

    Rodríguez Añón, Fernando Daniel

    2016-01-01

    En Uruguay, según estadísticas del Observatorio Nacional sobre Violencia y Criminalidad, cada 10 días una mujer o niña es asesinada. En la amplia mayoría de los casos, el crimen es cometido por varones de su propio entorno doméstico o familiar. En un país donde se han ratificado las convenciones internacionales para la erradicación de la violencia contra la mujer, se propone en su legislación, la prevención, atención y rehabilitación a las víctimas, así como la represión y rehabilitación a vi...

  14. Mortalidad infantil en Uruguay: un análisis de supervivencia

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    Jewell R. Todd

    2010-12-01

    Full Text Available A partir de todos los nacimientos ocurridos en el Uruguay entre 2002 y 2003 y las defunciones ocurridas en el primer año de vida, se estima la tasa de mortalidad infantil a través de modelos probit y hazard. Debido a que las muertes se concentran en los primeros días y semanas de vida, el modelo hazard es preferible al probit, encontrándose que la estimación probit sobreestima los efectos de las covariables. Los resultados muestran que las variables más importantes son la edad y la educación de la madre, los cuidados prenatales y los denominados predictores de la mortalidad (bajo peso al nacer, semanas de gestación y APGAR.

  15. Art rupestre en Uruguay : De nouveaux programmes d'étude et de conservation

    OpenAIRE

    Man-Estier, Elena; Paillet, Patrick

    2011-01-01

    International audience; La préhistoire et l'art rupestre en Uruguay font l'objet depuis quelques années d'un regain d'intérêt. D'importants programmes de prospections, de recherches, de valorisation et de conservation ont été mis en oeuvre, notamment dans le nord du pays, et contribuent à faire connaître un patrimoine archéologique d'une exceptionnelle qualité et d'une grande densité, jusqu'alors ignoré ou inédit, que cet article propose de faire découvrir. D'importantes découvertes archéo-lo...

  16. Ecology of Triatoma rubrovaria (Hemiptera, Triatominae in wild and peridomestic environments of Uruguay

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    Roberto Salvatella

    1995-06-01

    Full Text Available This paper describes population structure, spatial distribution and habitat selection of wild and peridomestic populations of Triatoma rubrovaria (Blanchard, 1843. Field studies were carried out at Las Piedras and La Bolsa in the Northern Department of Artigas, Uruguay. A semicircular sampling area, divided in seven or eight triangular sectors was sequentially examined from October 1990 to November 1991. At Las Piedras (typical wild habitat 1063 T. rubrovaria bugs were collected from 84 of the rocky outcroops ("pedregales". Abundance varied by season peaking in October-November (spring. Throughout the year, most of the population was made up of third, fourth and fifth instar nymphs; adults were found from October to March. In the peridomestic environment of La Bolsa, however T. rubrovaria was less common and showed a more irregular instar distribution. Colonized ecotopes, were those close to houses. In both sites T. rubrovaria was mainly associated with the geckonid Homonota uruguayensis and the cockroach Blaptica dubia.

  17. Protecting Children and Adolescents in Uruguay: Civil Society’s Role in Policy Reform

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    Amy Risley

    2014-10-01

    Full Text Available This article analyzes the advocacy efforts of civil societal actors in Uruguay who have sought to promote the rights of children. I discuss the strategies that members of non-governmental organizations (NGOs used to achieve a greater presence in debates leading to significant policy changes in the area of child protection. Child advocates achieved relatively high levels of political mobilization and influence throughout the 1990s and early 2000s. The analysis focuses on their multi-year campaign to reform the Children’s Code of 1934, which culminated in the adoption of a new Code of Childhood and Adolescence in 2004. I argue that two variables help explain their participation in policy making: effective issue framing and successful alliance building.

  18. Rural extension in Uruguay: problems and approaches from the point of view of their extensionists

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    Fernando Landini

    2015-08-01

    Full Text Available Understanding the problems faced by rural extension in Uruguay as well as the conceptions used by the development agents to conduct their practices constitutes a contribution to both, the Uruguayan rural development policies and the wider space of the MERCOSUR. A quali-quantitative research was conducted, during which 32 Uruguayan extensionists replied to a questionnaire. Replies underwent content and statistic analysis. Results suggest that the Uruguayan rural extensionists posses a complex conception of their practice, which articulates productive and social dimensions and relates to a critical and participatory way of understanding rural extension. Nevertheless, a diffusionist conception of rural extension is also present in some cases. Finally, problems related to group dynamics are highlighted.

  19. Inclusión educativa en Uruguay: una revisión posible

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    Andrea Jimena Viera Gómez

    2014-11-01

    Full Text Available El presente artículo tiene como objetivo realizar una revisión crítica de algunos documentos nacionales y textos académicos sobre las políticas de inclusión educativa en Uruguay. Se parte de los diversos significados y acepciones que tiene el término inclusión educativa, entendiendo que la misma debe brindar apoyo a la población de estudiantes más vulnerables ya sea por razones culturales, sociales, económicas o por su condición de discapacidad. Considerar la diversidad como parte de lo humano conduce a pensar en una educación en y para la diversidad, esta concepción de educación debe constituir el centro de la política educativa y el Estado deberá garantizar los recursos necesarios para su implementación. Se analizan algunos documentos del marco normativo internacional sobre inclusión social y educativa. Considerando que estos documentos refieren a la educación inclusiva como un derecho humano fundamental. Aún existe una gran distancia entre los discursos y las posibilidades efectivas de ejercer el derecho a la educación por parte de los niños en general y con discapacidad en particular. Uruguay mantiene en la actualidad un sistema de educación segregada, donde la situación educativa de los jóvenes con discapacidad hace figura y representa un gran desafío. Para finalizar, se identifica a la formación docente como uno de los componentes primordiales para el desarrollo de una educación inclusiva. El desarrollo profesional de los docentes es en sí mismo una estrategia de cambio y un factor clave para los procesos de mejora e innovación educativa. // This article aims to make a critical review of some national documents and academic texts on educational policies for inclusion in Uruguay. It begins with the various meanings and connotations that educational inclusion has, understanding that it should provide support to the student population most vulnerable either for cultural, social, economic or their disability

  20. First sauropod (Dinosauria: Saurischia) remains from the Guichón Formation, Late Cretaceous of Uruguay

    Science.gov (United States)

    Soto, Matías; Perea, Daniel; Cambiaso, Andrea

    2012-02-01

    We report the first sauropod remains recorded in the Guichón Formation, western Uruguay. The materials belong to a middle-sized sauropod represented by more than one individual, and among other remains include more than fifty caudal centra. Close to the bones, several eggshell fragments resembling Sphaerovum erbeniMones, 1980 were found. We discuss the biostratigraphic implications of these findings, which for the first time allow us to confidently refer the Guichón Formation to the Late Cretaceous. The combination of several synapomorphies such as a biconvex first caudal centrum, strongly procoelous middle and distal caudal centra, and a pyramidal astragalus suggests that the sauropod remains belong to a derived lithostrotian, probably related to Pellegrinisaurus powelli, Baurutitan britoi and Alamosaurus sanjuanensis. A few isolated teeth (now lost) referred by Frederich von Huene in 1934 to ornithomimid theropods and ornithischians are herein reinterpreted as belonging to indeterminate theropods and basal iguanodontians.

  1. Intraspecific variation of Bothrops pubescens (cope, 1869 venom in Uruguay (serpentes: viperidae

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    V. Morais

    2006-01-01

    Full Text Available In Uruguay, there was no information about the variations degree in Bothrops pubescens venoms until the present work, in which we investigated intraspecific venom variation using polyacrylamide gel electrophoresis (SDS-PAGE. We found some differences in the venom protein profile; however, they were not related to the parameters studied (geographic distribution, weight, sex, and captivity time. Moreover, we distinguished two different groups in relation to band densities at 49 and 57 kDa. Specimens with predominant density in the 49kDa band tend to be predominantly females. Weight distribution in this group extended for all the range (150-1500 g with an average weight of 720 g. The other group (57kDa predominant band showed restricted weight range (150-400 g with an average weight of 280 g. Cluster analysis was also performed. The variability observed in the venom profile probably corresponds to genetic variations.

  2. Adult T-cell leukemia/lymphoma. Report of a case in Uruguay

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    Matilde Boada

    2017-06-01

    Full Text Available Adult T-cell leukemia/lymphoma belongs to the group of mature T-cell malignancies according to the WHO classification. It constitutes a rare entity and has a strong association with infection by human T-lymphotropic virus 1. In Uruguay, this viral infection is very infrequent and, to our knowledge, no case of adult T-cell leukemia/lymphoma has been previously reported. We describe the case of a woman, immigrant from Peru, who presented with persistent lymphocytosis, intestinal parasitic diseases, and skin involvement. The diagnosis was delayed and the patient died before initiating oncological treatment. We therefore emphasize the relevance of an early clinical suspicion and serology for this virus, especially in patients coming from endemic countries like Peru.

  3. Student Assessment as a Political Construction—: The Case of Uruguay

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    Luis Benveniste

    2000-07-01

    Full Text Available This article reveals the interplay between assessment policies in Uruguay and the nature of State-societal relations. The central State has been historically a staunch defender of public education and has championed the cause of equalizing opportunities for the most disadvantaged sectors of society. The national evaluation system of student performance has been constructed as an expression of this tradition. The Uruguayan government sought to build a wide level of consensus with respect to the assessment instruments by encouraging educators to participate and buy into the assessment initiative. Moreover, the national government shifted the focus of the national evaluation from measuring schooling outcomes to addressing the social wants that condition student learning. Hence, the national evaluation has come to symbolize an agreed-upon mechanism of social accountability by which the central government upholds its responsibility for educational provision as it intervenes on behalf of impoverished communities. (Note 1

  4. MESOZOIC MAGMATISM IN EAST URUGUAY: PETROLOGICAL CONSTRAINTS RELATED TO THE SIERRA SAN MIGUEL REGION

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    Conti Bruno

    2009-07-01

    Full Text Available This work presents new results of a detailed geological and structural investigation focusing the easternmost Uruguayan Mesozoic magmatic occurrences related to the south Atlantic opening. Lithological descriptions, their stratigraphic relationships and complimentary lithochemical characterizations carried out in the San Miguel region (East Uruguay are presented. Three volcanic/sub-volcanic units have been recognized. The felsic volcanic association is composed by rhyolitic - dacitic flows, mainly with porphyritic textures and sub-alkalinenature and related pyroclastic rocks. The felsic sub-volcanic association is characterized by granophyres of about 25 km2 of exposed area, cross- cut by mafic and felsic dykes. Finally, a mafic association has been identified characterized by dykes and a small intrusion of gabbroic composition.All these units are Mesozoic in age (130 - 127 Ma and according to their chemical nature they correspond tosub-alkaline to weak peralkaline magmas.

  5. The South-American Connection Gaston Maspero, Egyptology and Americanist Archaeology at Montevideo (Uruguay, 1868

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    Daniel Schavelzon

    2004-05-01

    Full Text Available In 1867, young Gastón Máspero arrived in Montevideo, Uruguay, to translate a book written by the Argentine historian Vicente Fidel López, who, while during his exile conducted his campaign to run for office, also devoted himself to Quechua and the linguistics from Perú. The year he spent in Montevideo coincided with the presence of other travelers, antiquarians and pioneers of archaeology in South America, as well as with the exhibition of major Egyptian collections at Buenos Aires and Rio de Janeiro. He was in the right place at the right time. Eventually, in spite of having concentrated on Egyptology, would never lost contact with Americanism or with the South American countries.

  6. Siliceous spicules in a vauxiid sponge (Demospongia) from the Kaili Biota(Cambrian Stage 5), Guizhou, South China

    Science.gov (United States)

    Yang, X.-L.; Zhao, Y.-L.; Babcock, L. E.; Peng, J.

    2017-02-01

    Fossils of the sponge Angulosuspongia sinensis from calcareous mudstones of the middle and upper part of the Kaili Formation (Cambrian Stage 5) in the Jianhe area of Guizhou province, South China, exhibit an apparently reticulate pattern, characteristic of the Vauxiidae. Energy Dispersive X-Ray Spectrometry (EDS) and Raman spectroscopy analysis indicate the presence of silica in the skeletal elements of these fossils, suggesting that this taxon possessed a skeleton comprised of spicules. This is the first confirmation of siliceous skeletal elements in fossils of the family Vauxiidae, and it lends support to the hypothesis that some early demosponges possessed biomineralized siliceous skeletons, which were subsequently lost and replaced by spongin later in the evolutionary history of this lineage. The new materials provide critical insight into the phylogeny and evolution of biomineralization in the Demosopongiae.

  7. Extensional tectonics and sedimentary response of the Early–Middle Cambrian passive continental margin, Tarim Basin, Northwest China

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    Zhiqian Gao

    2012-09-01

    Full Text Available The fact that several half-grabens and normal faults developed in the Lower–Middle Cambrian of Tazhong (central Tarim Basin and Bachu areas in Tarim Basin, northwest China, indicates that Tarim Basin was under extensional tectonic setting at this time. The half-grabens occur within a linear zone and the normal faults are arranged in en echelon patterns with gradually increasing displacement eastward. Extensional tectonics resulted in the formation of a passive continental margin in the southwest and a cratonic margin depression in the east, and most importantly, influenced the development of a three-pronged rift in the northeast margin of the Tarim Basin. The fault system controlled the development of platform – slope – bathyal facies sedimentation of mainly limestone-dolomite-gypsum rock-saline rock-red beds in the half-grabens. The NW-SE trending half-grabens reflect the distribution of buried basement faults.

  8. Black shale source rocks and oil generation in the Cambrian and Ordovician of the central Appalachian Basin, USA

    Science.gov (United States)

    Ryder, R.T.; Burruss, R.C.; Hatch, J.R.

    1998-01-01

    Nearly 600 million bbl of oil (MMBO) and 1 to 1.5 trillion ft3 (tcf) of gas have been produced from Cambrian and Ordovician reservoirs (carbonate and sandstone) in the Ohio part of the Appalachian basin and on adjoining arches in Ohio, Indiana, and Ontario, Canada. Most of the oil and gas is concentrated in the giant Lima-Indiana field on the Findlay and Kankakee arches and in small fields distributed along the Knox unconformity. Based on new geochemical analyses of oils, potential source rocks, bitumen extracts, and previously published geochemical data, we conclude that the oils in both groups of fields originated from Middle and Upper Ordovician blcak shale (Utica and Antes shales) in the Appalachian basin. Moroever, we suggest that approximately 300 MMBO and many trillions of cubic feet of gas in the Lower Silurian Clinton sands of eastern Ohio originated in the same source rocks. Oils from the Cambrian and Ordovician reservoirs have similar saturated hydrocarbon compositions, biomarker distributions, and carbon isotope signatures. Regional variations in the oils are attributed to differences in thermal maturation rather than to differences in source. Total organic carbon content, genetic potential, regional extent, and bitument extract geochemistry identify the balck shale of the Utica and Antes shales as the most plausible source of the oils. Other Cambrian and Ordovician shale and carbonate units, such as the Wells Creek formation, which rests on the Knox unconformity, and the Rome Formation and Conasauga Group in the Rome trough, are considered to be only local petroleum sources. Tmax, CAI, and pyrolysis yields from drill-hole cuttings and core indicate that the Utica Shale in eastern and central Ohio is mature with respect to oil generation. Burial, thermal, and hydrocarbon-generation history models suggest that much of the oil was generated from the Utica-Antes source in the late Paleozoic during the Alleghanian orogeny. A pervasive fracture network

  9. EBSD microfabric study of pre-Cambrian deformations recorded in quartz pebbles from the Sierra de la Demanda (N Spain)

    Science.gov (United States)

    Ábalos, B.; Puelles, P.; Fernández-Armas, S.; Sarrionandia, F.

    2011-04-01

    We describe a new method for the reorientation of lattice preferred orientation data in the absence of a pre-constrained kinematic reference frame. The method enables us to present conventional quartz fabric diagrams after measurements taken from rock sections with a general orientation with respect to foliation and lineation. A microstructural and Electron Back-Scattered Diffraction (EBSD) study of quartz pebbles in early Cambrian conglomerates following this method permit us to recognize a variety of fabrics that resulted from syn-metamorphic ductile deformation under variable temperatures up to 650 °C. The likely source area of the conglomerates was a Proterozoic basement. Candidates for source rock correlations include Neoproterozoic units similar to those outcropping in the northern Iberian Massif, Neoproterozoic medium- to high-grade metamorphic rocks as those outcropping in SW Iberia, or a Neoarchean to Mesoproterozoic concealed basement.

  10. Uruguay's ambitious energy goals: Focus on biomass; Uruguayische Energie-Offensive. Ambitionierte Ziele sollen vor allem mit Biomasse erreicht werden

    Energy Technology Data Exchange (ETDEWEB)

    Jensen, Dierk

    2012-07-01

    Pasture farming has a long-standing tradition in Uruguay, but it is threatened now as soy, rice, citrus fruit, sugar cane and especially forest wood are getting sought after as animal feed and power generation materials. While forests are growing, the country's energy policy is aiming at a 50 percent share of renewable energy sources in primary energy supply. This makes Uruguay a leading country in Latin America. (orig.)

  11. Burden of disease resulting from lead exposure at toxic waste sites in Argentina, Mexico and Uruguay.

    Science.gov (United States)

    Caravanos, Jack; Carrelli, Jonathan; Dowling, Russell; Pavilonis, Brian; Ericson, Bret; Fuller, Richard

    2016-06-23

    Though lead contaminated waste sites have been widely researched in many high-income countries, their prevalence and associated health outcomes have not been well documented in low- and middle-income countries. Using the well-established health metric disability-adjusted life year (DALY) and an exposure assessment method developed by Chatham-Stephens et al., we estimated the burden of disease resulting from exposure to lead at toxic waste sites in three Latin American countries in 2012: Argentina, Mexico and Uruguay. Toxic waste sites identified through Pure Earth's Toxic Sites Identification Program (TSIP) were screened for lead in both biological and environmental sample media. Estimates of cardiovascular disease incidence and other outcomes resulting from exposure to lead were utilized to estimate DALYs for each population at risk. Approximately 316,703 persons in three countries were at risk of exposure to pollutants at 129 unique sites identified through the TSIP database. Exposure to lead was estimated to result in between 51,432 and 115,042 DALYs, depending on the weighting factor used. The estimated burden of disease caused by exposure to lead in this analysis is comparable to that estimated for Parkinson's disease and bladder cancer in these countries. Lead continues to pose a significant public health risk in Argentina, Mexico, and Uruguay. The burden of disease in these three countries is comparable with other widely recognized public health challenges. Knowledge of the relatively high number of DALYs associated with lead exposure may be used to generate support and funding for the remediation of toxic waste sites in these countries and others.

  12. Memoria del terrorismo de estado en la ciudad de Montevideo (Uruguay

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    Magdalena BROQUETAS SAN MARTÍN

    2009-03-01

    Full Text Available RESUMEN: Recientemente, en los países del Cono Sur de América Latina que han atravesado experiencias de terrorismo de Estado, ha comenzado a desarrollarse la discusión en torno a las marcas territoriales y los espacios físicos que aluden a ese pasado. En este contexto comenzó a pensarse la ciudad como escenario de las acciones del terrorismo de Estado, con el objetivo de reconocer en ella las huellas de esa experiencia y partiendo de la base de que esos rastros pueden transformarse en «vehículos de memoria». En esta ponencia, centrada en la ciudad de Montevideo (Uruguay, se repasarán las iniciativas de memoria desplegadas por agentes estatales y colectivos sociales para representar ese pasado de represión y violencia política y se reflexionará acerca del rol del historiador en esta contienda.ABSTRACT: Recently, in those countries of Southern America which have suffered experiences of the State terrorism, the discussion has begun to be developed concerning the territorial marks and the physical spaces that allude to this past. About this context the city begun to be thought as stage of the actions of the State terrorism, with the target to recognize on it the traces of this experience and departing from the base of which these tracks can be understood as «vehículos de la memoria» (places to recall past history. In this paper, focused on the city of Montevideo (Uruguay, there will be revised the initiatives of memory carried by state agents and social groups to represent this past of repression and political violence; the role of the historian in this process will be evalued at the same time.

  13. Seed softening patterns of forage legumes in a temperate/subtropical environment in Uruguay

    Directory of Open Access Journals (Sweden)

    Javier Do Canto

    2013-03-01

    Full Text Available Few studies have been conducted in annual and perennial forage legumes to investigate the development of hardseededness and the subsequent pattern of seed softening in temperate and subtropical regions of South America. Experiments were conducted during 2007 and 2008 in central Uruguay to follow the pattern of seed softening in 35 annual and perennial forage legumes, including three native species of Uruguay and five commercial cultivars. Newly ripened seeds of each plant material were placed in mesh packets on the soil surface in mid-summer. Samples were recovered monthly for germination tests and the proportion of residual hard seeds determined. The native species Adesmia bicolor (Poir. DC., Adesmia securigerifolia Herter, and Ornithopus micranthus (Benth. Arechav., together with Ornithopus pinnatus (Mill. Druce cv. INIA Molles behaved similarly. They showed high levels of initial hard seed from 78% in A. bicolor to 99% in A. securigerifolia and O. pinnatus cv. INIA Molles in 2007; displayed pulses of seed softening, particularly in autumn, and retained moderate levels of residual hard seed for the development of a soil seed bank ranging from 15% in A. bicolor to 49% in O. micranthus. These appear to be desirable characteristics for persistence of forage legumes in subtropical grasslands, both for annual and perennial species. Trifolium repens L. and Lotus corniculatus L. produced few hard seeds, only 2% and 13% respectively were hard after 1-mo in the field and were completely soft by July placing extra reliance on their vegetative propagation for persistence. Materials of L. arenarius Brot. showed pronounced late autumn softening, while materials of L. ornithopodioides L. showed extremely high levels of hardseededness (between 96% and 100% and no softening during the evaluation period, apart from two materials that were completely soft seeded. Mediterranean forage legumes should be properly evaluated in temperate and subtropical regions as

  14. Dental anomalies in Didelphis albiventris (Mammalia, Marsupialia, Didelphidae from Argentina, Brazil and Uruguay

    Directory of Open Access Journals (Sweden)

    M. Amelia Chemisquy

    Full Text Available ABSTRACT Dental anomalies have been investigated and reported for most orders of mammals, including marsupials. Previous works in Didelphis albiventris Lund, 1840 only described one kind of malformation or just a few observations from some collections, thus the type and presence of anomalies for this species was underestimated. The aim of this contribution is to describe and analyze several dental anomalies found in specimens of Didelphis albiventris from Argentina, Uruguay and Brazil. Dental anomalies were classified in three categories: supernumerary or missing teeth, morphological anomalies in size and shape, and teeth in unusual positions. We found 32 individuals of D. albiventris with anomalies out of 393 analyzed specimens (8.14%, some specimens with more than one anomaly. A similar proportion of specimens from Argentina and Uruguay presented anomalies, while in specimens from Brazil anomalies were less common. Anomalies were more commonly found in the upper toothrow and in molars, being supernumerary teeth and molars with unusual crown-shape the most common ones. The percentage of specimens with anomalies found for D. albiventris is higher than previously reported for the species, and other Didelphimorphia. Inbreeding and limited gene flow do not appear as possible explanations for the elevated percentage of anomalies, especially due to the ecological characteristics of Didelphis albiventris. Developmental instability and fluctuating asymmetry could be some of the causes for the anomalies found in this species, mostly since the habitat used by D. albiventris tends to be unstable and disturbed. Dental anomalies were mostly found in areas of the toothrow where occlusion is relaxed or does not prevent teeth from interlocking during mastication, and consequently have no functional value.

  15. Zoonotic Potential and Antibiotic Resistance of Escherichia coli in Neonatal Calves in Uruguay.

    Science.gov (United States)

    Umpiérrez, Ana; Bado, Inés; Oliver, Martín; Acquistapace, Sofía; Etcheverría, Analía; Padola, Nora Lía; Vignoli, Rafael; Zunino, Pablo

    2017-09-27

    Escherichia coli is one of the main etiological agents of neonatal calf diarrhea (NCD). The objective of this study was to assess the presence of virulence genes, genetic diversity, and antibiotic resistance mechanisms in E. coli associated with NCD in Uruguay. PCR was used to assess the presence of intimin, Shiga-like toxin, and stable and labile enterotoxin genes. Resistance to fluoroquinolones and oxyimino-cephalosporins was estimated on Müller-Hinton agar plates. Further antibiotic disc-diffusion tests were performed to assess bacterial multi-resistance. The presence of PMQR, ESBL, MCR-1, and integron genes was evaluated. Isolates were typed using ERIC-PCR, and 20 were selected for MLST, adhesion to Hep-2 cells, in vitro biofilm formation, and eukaryotic cytotoxicity. The prevalence of ETEC genes was lower than 3% in each case (estA and elt). Six isolates were EPEC (eae+) and 2 were EHEC/STEC (eae+/stx1+). The results of a diversity analysis showed high genetic heterogenicity among isolates. Additionally, different sequence types, including ST10, ST21, and ST69, were assigned to selected isolates. Thirty-six percent (96/264) of the isolates were fluoroquinolone-resistant, with 61/96 (63.5%) being multidrug-resistant. Additionally, 6 were oxyimino-cephalosporin-resistant. The qnrB, qnrS1, and bla CTX-M-14 genes were detected, whereas no isolates carried the mcr-1 gene. Isolates had the ability to adhere to Hep-2 cells and form biofilms. Only 1 isolate expressed toxins in vitro. E. coli from NCD cases in Uruguay are very diverse, potentially virulent, and may interact with eukaryotic cells. Zoonotic potential, together with resistance traits and the presence of horizontal transfer mechanisms, may play a significant role in infections caused by these microorganisms.

  16. Recreational Exposure during Algal Bloom in Carrasco Beach, Uruguay: A Liver Failure Case Report.

    Science.gov (United States)

    Vidal, Flavia; Sedan, Daniela; D'Agostino, Daniel; Cavalieri, María Lorena; Mullen, Eduardo; Parot Varela, María Macarena; Flores, Cintia; Caixach, Josep; Andrinolo, Dario

    2017-08-31

    In January 2015, a 20-month-old child and her family took part in recreational activities at Carrasco and Malvín beaches (Montevideo, Uruguay). An intense harmful algae bloom (HAB) was developing along the coast at that time. A few hours after the last recreational exposure episode, the family suffered gastrointestinal symptoms which were self-limited except in the child's case, who was admitted to hospital in Uruguay with diarrhea, vomiting, fatigue, and jaundice. The patient had increased serum levels of liver enzymes and bilirubin and five days later presented acute liver failure. She was referred to the Italian Hospital in Buenos Aires, being admitted with grade II-III encephalopathy and hepatomegaly and requiring mechanical respiratory assistance. Serology tests for hepatitis A, B, and C, Epstein-Barr virus, and cytomegalovirus were negative. Laboratory features showed anemia, coagulopathy, and increased serum levels of ammonium, alanine aminotransferase (ALT), aspartate aminotransferase (AST), and bilirubin. Autoimmune Hepatitis Type-II (AH-II) was the initial diagnosis based on a liver kidney microsomal type 1 antibodies (LKM-1) positive result, and twenty days later a liver transplant was performed. The liver histopathology had indicated hemorrhagic necrosis in zone 3, and cholestasis and nodular regeneration, which were not characteristic of AH-II. LC/ESI-HRMS (liquid chromatography electrospray ionization high-resolution mass spectrometry) analysis of MCs in the explanted liver revealed the presence of Microsytin-LR (MC-LR) (2.4 ng·gr(-1) tissue) and [D-Leu¹]MC-LR (75.4 ng·gr(-1) tissue), which constitute a toxicological nexus and indicate a preponderant role of microcystins in the development of fulminant hepatitis.

  17. The sedimentary facies characteristics and lithofacies palaeogeography during Middle-Late Cambrian, Sichuan Basin and adjacent area

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    Feifan Lu

    2017-06-01

    Full Text Available Combined with the regional strata filling characteristics of Middle-Upper Cambrian, the present paper conducts a systematic research on sedimentary facies in the basin and its peripheral area by utilizing 164 field outcrops and drilling and coring data. Further, the method of “multi-factor comprehensive synthesis based on single-factor analysis” was employed to investigate the sedimentary facies and palaeogeography of the study area and establish the sedimentary facies model. Stratigraphic reveals that the study area represents the pattern of thin-northwest and thick-southeast by stretching northeast-southwest. Within the present basin, the pattern of “one thin and two thick” predominates, while outside the basin “four thin and three thick” filling feature was found. Sedimentary facies shows that the study area was featured by rimmed carbonate platform. Specifically, carbonate platform, slope and northeastern corner Qinling paleooceanic Basin and southeastern corner Jiangnan Bain was identified from the west to the east. The carbonate platform contains restricted platform, evaporation-restricted platform, semi-restricted platform and the platform margin. Single factor analysis and lithofacies palaeogeographic characteristics manifests that during Middle-Late Cambrian, the western Old land evolved into peneplain stage, and that the eastern and southwestern sub-sags remained connected to the open-sea to some extent. At the time, the shllow seawater circulation was relatively restricted, while the ancient seabed tended to be flat and evaporation characteristics significantly diminished. Secondary sea-level fluctuation intensively influenced the development of scaled grain beach. It is suggested that tide marginal beach, intraplatform shoal subfacies zone, along with Shiqian-SangZhi in southeast and Zhenba-Xinshan in northeast platform-margin beach subfacies zone to be preferable targets for the favorable reservoir facies zone and

  18. Lower Cambrian-Ediacaran Paleogeography and True Polar Wander with New Paleomagnetic Constraints from West African Craton

    Science.gov (United States)

    Robert, B.; Besse, J.; Blein, O.; Greff-Lefftz, M.; Baudin, T.; Fernando, L.; Meslouh, S.; Belbadaoui, M.

    2014-12-01

    Paleomagnetic data from Laurentia and Baltica continents suggest fast large oscillations of the virtual geomagnetic poles (VGP) from high to low latitudes during the Ediacaran (635-542 Ma). These data are interpreted in the literature either as oscillations of the Earth magnetic dipole between polar and equatorial positions, or as True Polar Wander (TPW), implying a very fast tumbling of continents and perhaps, of whole Earth. In this study, we try to test these hypotheses by bringing new paleomagnetic data on volcanic series from another continent, the West African Craton (WAC). We have sampled well dated pyroclastic and lava flows from the Ouarzazate and Taroudant groups in the Anti-Atlas, (Morocco). 480 samples from 105 sites were thermally demagnetized in our laboratory. Our preliminary results highlight two major groups of directions, mainly carried by hematite, magnetite also contributing sometimes to the magnetization. The first group consists of a dual polarity high inclination direction that may represent the original magnetization. The observed paleolatitude is compatible with that predicted by the lower Cambrian-Ediacaran apparent polar wander path (APWP) of Gondwana, assuming that the WAC was already accreted to Gondwana at this age. Nevertheless, a complete agreement between our pole and the APWP needs a local rotation of around 80° on a vertical axis. The second group displays a single polarity direction, with a shallow inclination and a south-east declination. This direction is close to the expected direction derived from the Permo-Carboniferous segment of the Gondwana APWP, and may represent a remagnetization acquired during the Kiaman reversed polarity superchron. Our preliminary paleomagnetic results thus display large changes in the VGP position, as also evidenced by others on Baltica and Laurentia. However, their interpretation does not favor TPW episodes or equatorial Earth magnetic dipole during the lower Cambrian-Ediacaran periods, but

  19. Las personas en grupos: psicología social

    OpenAIRE

    Gutiérrez González, Macarena

    2013-01-01

    En este trabajo se analizarán los comportamientos y las actitudes de los individuos cuando se encuentran en grupo. El fin de este proyecto es analizar en qué medida la sociedad influye en las acciones de una persona.

  20. TTI Phase 2 Institutional Support: Grupo FARO | CRDI - Centre de ...

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

    The program aims to enhance their ability to provide sound research that informs and influences policy. This second TTI phase ... -establish a body of research anchored in participatory research methodologies -strengthen research ... -raise Grupo FARO's visibility in the media and in policy-making circles -build public ...

  1. de grupos minoritarios y mayoritarios en costa rica

    Directory of Open Access Journals (Sweden)

    Vanessa Smith Castro

    2005-01-01

    Full Text Available Utilizando las técnicas de los Modelos de Ecuaciones Estructurales, el presente estudio examina un modelo teórico sobre el efecto de la discriminación percibida, el contacto interétnico, la identificación étnica y las actitudes interétnicas en la autoestima de jóvenes costarricenses de diferentes grupos étnicos. En la investigación participaron 407 jóvenes afrocostarricenses (M=16.27 años, DE=1.58; 58% mujeres y 768 jóvenes del grupo mayoritario costarricense blancos/mestizo (M=15.93 años, DE=1.48; 60% mujeres provenientes de dos ciudades de diferente composición étnica. Los resultados son altamente consistentes con el modelo propuesto indicando que la autoestima se ve directamente afectada por la identificación étnica y las actitudes interétnicas en ambos grupos étnicos. Estas, a su vez, están directamente influenciadas por la percepción de la discriminación y el contacto interétnico. Diferencias y similitudes entre los grupos étnicos son analizadas y discutidas

  2. Tobacco smoke exposure in public places and workplaces after smoke-free policy implementation: a longitudinal analysis of smoker cohorts in Mexico and Uruguay

    Science.gov (United States)

    Thrasher, James F.; Nayeli Abad-Vivero, Erika; Sebrié, Ernesto M.; Barrientos-Gutierrez, Tonatiuh; Boado, Marcelo; Yong, Hua Hie; Arillo-Santillán, Edna; Bianco, Eduardo

    2013-01-01

    Objective: To determine the prevalence, correlates and changes in secondhand smoke (SHS) exposure over the period after comprehensive smoke-free policy implementation in two Latin American countries. Methods: Data were analysed from population-based representative samples of adult smokers and recent quitters from the 2008 and 2010 waves of the International Tobacco Control Policy Evaluation Survey in Mexico (n = 1766 and 1840, respectively) and Uruguay (n = 1379 and 1411, respectively). Prevalence of SHS exposure was estimated for regulated venues, and generalized estimating equations were used to determine correlates of SHS exposure. Results: Workplace SHS exposure in the last month was similar within and across countries (range: Mexico 20–25%; Uruguay 14–29%). At the most recent restaurant visit, SHS exposure was lower where comprehensive smoke-free policies were implemented (range: Uruguay 6–9%; Mexico City 5–7%) compared with Mexican cities with weaker policies, where exposure remained higher but decreased over time (32–17%). At the most recent bar visit, SHS exposure was common (range: Uruguay 8–36%; Mexico City 23–31%), although highest in jurisdictions with weaker policies (range in other Mexican cities: 74–86%). In Uruguay, males were more likely than females to be exposed to SHS across venues, as were younger compared with older smokers in Mexico. Conclusions: Comprehensive smoke-free policies are more effective than weaker policies, although compliance in Mexico and Uruguay is not as high as desired. PMID:23172895

  3. Indications of the Implementation in the Process of Educational Reform in Uruguay Indicadores de la implementación en procesos de reforma educativa en Uruguay

    Directory of Open Access Journals (Sweden)

    Marcos R. Sarasola

    2000-01-01

    Full Text Available In this paper the author investigates, from a qualitative perspective, the problems associated with implementing educational innovations. He studies the recent case of the Basic Cycle reform in Uruguay. Based on the concepts of van der Vegt and Vandenberghe (1992, he analyzes the "functions guides" exercised by the director in order to be able to regulate the internal flow of the implementation. The first of these is "conceptual clarity", which has to do with providing the professors with a clear vision of what will take place within the implementation, and with specifying that vision in terms of the professional knowledge and abilities of the faculty as well. The second of these is "directional pressure," which refers to an operational level of the implementation; that is to say, how daily activities mesh with the objectives of the reform. Next, "function of support" refers to the support offered by the director for the management of resources (material, emotional, technical, and administrative resources, so that the resources may then effectively support the work in the center. Finally is "definition of latitude," that is, the degree of educational autonomy that the faculty have with respect to the external objectives of the reform. En este trabajo el autor estudia, desde una perspectiva cualitativa, la problemática de la implementación de innovaciones educativas. Toma por caso la reciente reforma del Ciclo Básico en Uruguay. Con base en los conceptos de van der Vegt y Vandenberghe (1992, analiza las "funciones guía" ejercidas por el director para poder regular el flujo interno de la implementación. La primera de ellas es la "claridad conceptual", que tiene que ver con las posibilidades de proveer a los profesores de una clara visión de lo que ha de lograrse con la implementación y con concretar esa visión en términos de saber profesional y habilidades de los docentes. La segunda es la "presión direccional" que refiere a un nivel

  4. Desarrollo y territorio en Uruguay. Una mirada desde la experiencia españona en L'Alcoià

    Directory of Open Access Journals (Sweden)

    Adrián Rodríguez Miranda

    2005-01-01

    Full Text Available En Uruguay las políticas macronacionales y sectoriales no han considerado suficientemente el impacto territorial ni a los actores locales para impulsar el desarrollo regional. No obstante, hay experiencias exitosas de desarrollo endógeno en diferentes latitudes del mundo que pueden servir de modelos para definir estrategias de desarrollo local y territorial. En este artículo se describe la experiencia L Alcoià, España, y se evalúan sus resultados desde la ótica del desarrollo endógeno. Asimismo, se aprecian las principales características de esta experiencia y se condieran para la integración de una estrategia de desarrollo en Uruguay que se estructure desde la perspectiva local de sus diferentes regiones.

  5. The challenge of implementation of preventive programs in a developing country: experiences, situations, and perspectives in Uruguay.

    Science.gov (United States)

    Osimani, María Luz

    2003-12-15

    In recent years, Uruguay has seen an alarming increase in the percentage of persons with human immunodeficiency virus infection/acquired immunodeficiency syndrome who are injection drug users (IDUs) and their sex partners, which has consequently contributed to the rate of perinatal transmission. Development of preventive harm reduction and risk reduction strategies has become imperative. These strategies must be suitable for a developing country and focused on its population of IDUs. These strategies must include, as a preliminary step, a comprehensive analysis of the current local legal system and knowledge about the kinds of drugs used, the ways in which they are used, and their effects on public health. The conclusions of some studies and a pilot program that Institute of Social Research and Development, Instituto de Investigación y Desarrollo Social, Uruguay, implemented in 2001 have pointed to new avenues for the control of the epidemic spread among IDUs and to their social environment.

  6. Sulfur and strontium isotopic compositions of carbonate and evaporite rocks from the late Neoproterozoic–early Cambrian Bilara Group (Nagaur-Ganganagar Basin, India): Constraints on intrabasinal correlation and global sulfur cycle

    Digital Repository Service at National Institute of Oceanography (India)

    Mazumdar, A.; Strauss, H.

    deposits of terminal Neoproterozoic to early Cambrian age. Lithological and geochemical results suggest the coeval nature of the Bilara Group and Hanseran Evaporite Group. Fluctuations in the sulfur isotopic composition may at least partially be attributed...

  7. Relationships in international supply chain of a multinational: the case Marfrig in their units in Argentina, Brazil and Uruguay

    OpenAIRE

    Adriana Troczinski Storti; Luciana Marques Vieira

    2013-01-01

    Studies aimed at understanding the characteristics of relationships that occur between companies involved in the supply chain are timely when the growing role of overseas companies. This article aims to understand and compare the presence and alignment of information on criteria analysis cooperation, involvement, trust, communication and coordination in supply chain relationships in Argentina, Brazil and Uruguay, of a multinational based in Brazil. It was developed an analytical model and, th...

  8. Hospital admissions for acute myocardial infarction before and after implementation of a comprehensive smoke-free policy in Uruguay

    Science.gov (United States)

    Sebrié, Ernesto Marcelo; Sandoya, Edgardo; Hyland, Andrew; Bianco, Eduardo; Glantz, Stanton A; Cummings, K Michael

    2012-01-01

    Background Stimulated by the WHO Framework Convention on Tobacco Control, many countries in Latin America adopted comprehensive smoke-free policies. In March 2006, Uruguay became the first Latin American country to adopt 100% smoke-free national legislation, which ended smoking in all indoor public places and workplaces, including restaurants and bars. The objective of this study was to evaluate trends in hospital admissions for cardiovascular disease 2 years before and 2 years after the policy was implemented in Uruguay. Methods Reports of hospital admissions for acute myocardial infarction (AMI) (International Classification of Disease-10 I21) from 37 hospitals (79% of all hospital admissions in the country), representing the period 2 years before and 2 years after the adoption of a nationwide smoke-free policy in Uruguay (between 1 March 2004 and 29 February 2008), were reviewed. A time series analysis was undertaken to compare the average monthly number of events of hospital admission for AMI before and after the smoke-free law. Results A total of 7949 hospital admissions for AMI were identified during the 4-year study period. Two years after the smoke-free policy was enacted, hospital admissions for AMI fell by 22%. The same pattern and roughly the same magnitude of reduction in AMI admissions were observed for patients seen in public and private hospitals, men, women and people aged 40–65 years and older than 65 years. Conclusions The national smoke-free policy implemented in Uruguay in 2006 was associated with a significant reduction in hospital admissions for AMI. PMID:22337557

  9. Las relaciones entre autonomía colectiva y gobierno en Uruguay: crónica con final abierto

    OpenAIRE

    Barretto, Hugo

    2012-01-01

    Relations between collective autonomy and government in Uruguay: chronic with open endingThe present article, after making a brief recount of the model of Uruguayan collective labor relations, analyzes the foundation and impact of heteronomous regulation on the protection of trade union freedom and collective bargaining released in the context of transformation model during periods from 2005 to 2009 and so far until 2012, with the purpose of determining whether the same meant a profound and d...

  10. TOURISM PUBLIC POLICY AND TERRITORY IN THE THERMAL REGION OF URUGUAY – CASE STUDY: GUAVIYU HOT SPRINGS (1957-2007

    Directory of Open Access Journals (Sweden)

    Claudio Quintana

    2011-09-01

    Full Text Available This paper describes the transformation of space in touristic territory (touristification and the stages of tourism through which Guaviyú Hot Springs (Paysandu, Uruguay went. The role of governmental tourism administration strongly conditioned the dynamics and evolution of Guaviyu Hot Springs. The intervention of Public Administration has been a key historical and spatial factor for the development of tourism in the hot springs center.

  11. Une révolution numérique dans les salles de classe de l'Uruguay ...

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

    28 janv. 2011 ... Les élèves des écoles primaires publiques de l'Uruguay vont bientôt voir leurs salles de classe se colorer de vert. Grâce à une initiative pilote mondiale, des millions d'ordinateurs portables peu coûteux seront distribués aux enfants les plus pauvres de la planète au cours de l'an prochain.

  12. Diferencias entre los sexos en los procedimientos judiciales: Pruebas de campo de causas de vivienda en Uruguay

    OpenAIRE

    Eduardo Gandelman; Nestor Gandelman; Julie Rothschild

    2008-01-01

    Este trabajo emplea dados de nivel micro de procedimientos judiciales en Uruguay para mostrar pruebas de que las acusadas reciben un tratamiento más favorable en los tribunales que los acusados. Esto se debe a procedimientos más prolongados de remate judicial y a que hay una mayor probabilidad de que se concedan prórrogas en los procesos de desalojo a las acusadas.

  13. Venezuela, Surinam, Jamaica y Uruguay: relevancia de los partidos políticos para la democracia, ayer y hoy

    Directory of Open Access Journals (Sweden)

    Natascha Adama

    2009-01-01

    Full Text Available El postulado de que los sistemas bipartidistas son más estables es negado por las crisis políticas habidas en Uruguay y Jamaica en las décadas de 1960 y 1970. Los sistemas multipartidistas de Venezuela y Uruguay, en cierto momento histórico, acomodaron la realización de pactos y alianzas políticas aparentemente improbables, que en tiempos de crisis llevaron a la fragmentación del panorama político y a profundas crisis de liderazgo que continúan determinando la sociedad de hoy. Este artículo sostiene la hipótesis de que los sistemas bipartidistas tienen mayor propensión a la estabilidad política debido a que la agregación de demandas se concentra entre dos contendientes principales y a que las posibilidades de pactos políticos se ven limitadas. La hipótesis mencionada será explorada mediante el examen de: 1 la relevancia de los sistemas de partidos para la democratización, en general y en los casos de Jamaica, Uruguay, Surinam y Venezuela; 2 el papel de los partidos en los países mencionados durante y después de las crisis políticas, y su capacidad para re-equilibrarse y ajustarse ante las presiones del cambio social.

  14. La influencia de la Bauhaus en el grupo Memphis

    OpenAIRE

    Fernández Rodríguez, Salinas

    2017-01-01

    La Bauhaus hizo una de las mayores aportaciones al diseño moderno en el siglo XX. El objetivo de este trabajo es analizar los principios estéticos de la Bauhaus para ver cómo han influido en el Grupo Memphis: grupo de diseñadores y arquitectos que surgió en Italia en los años 80 de la mano de Ettore Sottsass. Este trabajo es una aproximación a la influencia estética de la Bauhaus en el colectivo de diseñadores Memphis, que dio un giro a los productos de la época transformándolos en objetos tota...

  15. La violencia femenina de grupo en el mito griego.

    OpenAIRE

    Villagra, Nereida

    2014-01-01

    En algunos relatos un grupo de mujeres asesina conjuntamente. El objetivo de este artículo es explorar si la violencia homicida colectiva tiene que ser femenina y hasta qué punto estos relatos obedecen a la idea de que la estirpe de las mujeres es mala contribuyendo a perfilar su naturaleza negativa, tan presente en la tradición arcaica, especialmente en Hesíodo. info:eu-repo/semantics/acceptedVersion

  16. Grupos sanguíneos de los indios guajiros

    OpenAIRE

    Martínez Silva, Ramiro; Soriano Lleras, Andrés

    2011-01-01

    Se estudian 230 muestras procedentes de indios de la Guajira para determinar sus grupos sanguíneos. Se encuentran las siguientes distribuciones: O 72.19 por ciento, A 8.26 por ciento, B 13.47 por ciento y AB 6.08 por ciento. Se estudia la posibilidad de inmunización con el factor Rh en 130 mujeres adultas y que habían estado embarazadas. No se encuentran anticuerpos contra el factor Rh.

  17. O uso do grupo focal em pesquisa qualitativa

    Directory of Open Access Journals (Sweden)

    Lúcia Beatriz Ressel

    2008-01-01

    Full Text Available Este estudio tuvo como objetivo presentar el uso del grupo focal como técnica de recolección de datos en una tesis de doctorado, resultado de una investigación cualitativa. El grupo focal utiliza sesiones grupales de discusión, teniendo como foco central un tópico específico a ser debatido por los participantes. La investigación focalizó la temática de la sexualidad en la asistencia de enfermería, bajo una perspectiva cultural, siendo desarrollada con dos grupos de enfermeras: docentes y asistenciales. Comprendió ocho encuentros, y cada uno fue planeado por separado. La evaluación del proceso se realizó por medio de entrevistas con las enfermeras, destacando como puntos positivos la conducción hacia el pensamiento crítico y al proceso de desalineación; y la posibilidad de que esta técnica revele significados singulares y a que ellos se relacionen desde el punto de vista de los sujetos investigados. Esa técnica facilitó el abordaje de la sexualidad, desconstruyendo y reconstruyendo conceptos y buscando respuestas para las inquietudes del tema.

  18. viver de um grupo de mulheres de classes populares

    Directory of Open Access Journals (Sweden)

    Kleyde Ventura de Souza

    2007-01-01

    Full Text Available Para la realización del presente estudio hicimos una encuesta a través de la cual conformamos un tipo especial de grupo llamado “Círculo de Ciudadanía”, con el objetivo de presentar los hechos & actos que han influenciado en la conquista de los derechos sexuales y reproductores de un grupo formado por 16 mujeres de clases populares. La encuesta fue desarrollada en 15 encuentros, en el período de diciembre de 2003 hasta julio de 2004. Los temas generadores fueron discutidos a la luz de los conceptos de Paulo Freire: “el cuerpo” y “derecho a tener derechos”. Las discusiones hechas en estos encuentros, originaron unidades temáticas que evidenciaron las desigualdades sociales, económicas y culturales, reforzando con ello, la condición de subordinación de las mujeres de clases populares, así como los dilemas y desafíos originados de la condición de ser mujer en el (difícil ejercicio de los derechos sexuales y reproductores, como integrantes del proceso de vivir del grupo estudiado.

  19. Por amar a liberdade: grupo Dóris

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    Cláudio Alberto dos Santos

    2007-10-01

    Full Text Available Este artigo discute o espetáculo Zumbi encenado pelo Grupo Teatral Dóris Cunha Melgaço (também conhecido como “Grupo do SESC?, em 1970-1, na cidade de Uberlândia. Tal montagem é presença fundamental quando se fala da história do teatro local. Até hoje este é um legado de incrível atualidade. O Grupo Dóris foi um núcleo seminal, instigante, vivo e bastante admirado pelo público de sua época. Apresentou muitas inovações formais e abriu caminhos. Trouxe inúmeras contribuições estéticas, mas, sobretudo, influenciou por sua postura política transformadora. O trabalho cênico em foco tem a marca da utopia que nasce do sentimento e da idéia do possível. Para o estabelecimento da identidade coletiva, tão importante quanto viver uma mesma situação social é ter as mesmas aspirações. Nessa perspectiva, a utopia defendida nessa encenação é uma possibilidade resiliente de experiência libertária.

  20. Ground-water quality in the western part of the Cambrian-Ordovician aquifer in the Western Lake Michigan Drainages, Wisconsin and Michigan

    Science.gov (United States)

    Saad, D.A.

    1996-01-01

    Ground-water samples were collected during the summer of 1995 from 29 wells in the western part of the Cambrian-Ordovician aquifer in the Western Lake Michigan Drainages study unit of the National-Water Quality Assessment Program. Analyses of ground-water samples from these wells were used to provide an indication of waterquality conditions in this heavily used part of the aquifer.

  1. Logging identification for the Lower Cambrian Niutitang shale reservoir in the Upper Yangtze region, China: A case study of the Cengong block, Guizhou Province

    OpenAIRE

    Ruyue Wang; Wenlong Ding; Xinyu Wang; Zixian Cui; Xinghua Wang; En Chen; Yaxiong Sun; Zikang Xiao

    2016-01-01

    Currently, China has achieved a breakthrough in the Lower Silurian Longmaxi shale in Sichuan Basin and its surrounding areas. Compared to the Longmaxi shale, the Lower Cambrian Niutitang shale, which has a greater deposition thickness and wider distribution area, is another significant stratum for China's shale gas. Geophysical well logging is one of the most significant methods used for identification and evaluation of shale gas reservoirs throughout the process of shale gas exploration and ...

  2. Prevalence and predictors of exposure to multiple metals in preschool children from Montevideo, Uruguay

    Energy Technology Data Exchange (ETDEWEB)

    Kordas, Katarzyna, E-mail: Kxk48@psu.edu [Department of Nutritional Sciences, Pennsylvania State University, 110 Chandlee Laboratory, University Park, PA 16802 (United States); Queirolo, Elena I. [Center for Research, Catholic University of Uruguay, Montevideo (Uruguay); Clinic for Environmental Contaminants, Pereira Rossell Hospital, Montevideo (Uruguay); Ettinger, Adrienne S.; Wright, Robert O. [Department of Environmental Health, Harvard School of Public Health, Boston, MA (United States); Stoltzfus, Rebecca J. [Division of Nutritional Sciences, Cornell University, Ithaca, NY (United States)

    2010-09-15

    The extent of children's exposure to multiple toxic metals is not well described in many developing countries. We examined metal exposures in young children (6-37 months) from Montevideo, Uruguay and their mothers (15-47 years) participating in a community-based study. Hair samples collected from 180 children and their mothers were analyzed for: lead (Pb), cadmium (Cd), manganese (Mn), and arsenic (As) concentration using inductively coupled plasma-mass spectrometry (ICP-MS). Median metal levels ({mu}g/g) were: Pb 13.69, Mn 1.45, Cd 0.17, and As 0.09 for children and Pb 4.27, Mn 1.42, Cd 0.08, and As 0.02 for mothers. Of the child and maternal samples, 1.7% and 2.9% were below the limit of detection (LOD) for Cd, and 21.3% and 38.5% were below the LOD for As, respectively. Correlations between maternal and child levels ranged 0.38-0.55 (p < 0.01). Maternal hair metal levels were the strongest predictors of metal concentrations in children's hair. Girls had significantly lower As levels than boys (p < 0.01) but did not differ on other metals. In addition, in bivariate logistic regressions predicting the likelihood that the child would be exposed to multiple metals, hemoglobin < 10.5 g/dL (OR = 2.12, p < 0.05), blood lead (OR = 1.17, p < 0.01), and the mother being exposed to two or more metals (OR = 3.34, p < 0.01) were identified as significant predictors of increased likelihood of multiple metal exposure. Older child age (OR = 0.96, p < 0.05), higher maternal education (OR = 0.35, p < 0.01), and higher number of household possessions (OR = 0.83, p < 0.01) were significantly associated with decreased likelihood of multiple metal exposure. Preschool children in Uruguay are exposed to multiple metals at levels that in other studies have been associated with cognitive and behavioral deficits. Sources of exposure, as well as cognitive and behavioral consequences of multiple metal exposure, should be investigated in this population.

  3. Actitudes lingüísticas en Uruguay. Tensiones entre la variedad y la identidad

    Directory of Open Access Journals (Sweden)

    Elizabeth García de los Santos

    2014-11-01

    Full Text Available Resumen Este artículo analiza las actitudes lingüísticas de los hablantes nativos de español de la ciudad de Montevideo hacia al español de Uruguay y el de los otros países hispanohablantes. El artículo es parte de los resultados del Proyecto LIAS (Linguistic Identity and Attitudes in Spanish-speaking Latin America, financiado por El Consejo Noruego de Investigaciones (RCN. La recolección de los datos se realizó en la capital del país, entrevistando a una muestra de 400 informantes previamente estratificada con las variables de edad, sexo y nivel socioeconómico. Los resultados presentan el grado de identificación de los hablantes frente a su variedad del español (creencias, lealtad hacia la norma propia y las actitudes de los hablantes respecto a las variedades entendidas como de mayor o menor prestigio; se encuentran ciertas regularidades en las causas que determinan estas actitudes. El estudio analizar el grado de tolerancia a las diferencias lingüísticas de acuerdo a distintos géneros discursivos (noticias de radio y televisión, información telefónica, publicidades y los resultados muestran que el contexto y el medio de comunicación son importantes para la manera en la que el hablante reacciona al uso del lenguaje. Abstract This article analyzes the linguistic attitudes of native Spanish-speakers from Montevideo towards Spanish spoken in Uruguay and in the other Spanish-speaking countries. It is a result of the LIAS-Project (Linguistic Identity and Attitudes in Spanish-speaking Latin America, funded by The Research Council of Norway (RCN. The data were gathered in the capital of the country, interviewing a stratified sample of 400 respondents, based on the variables of age, sex and socioeconomic status. The results describe the degree of identification of the speakers with their own variety of Spanish (beliefs, loyalty to the norm and their attitudes toward linguistic varieties of high or low prestige, and the findings

  4. Foraging strategies of Southern sea lion females in the La Plata River Estuary (Argentina-Uruguay)

    Science.gov (United States)

    Rodríguez, Diego H.; Dassis, Mariela; Ponce de León, Alberto; Barreiro, César; Farenga, Marcelo; Bastida, Ricardo O.; Davis, Randall W.

    2013-04-01

    The stocks of Southern sea lions (Otaria flavescens, SSL) and South American fur seals (SAFS) that breed on coastal islands of Uruguay constitute the most important focal concentration of pinnipeds in South America, with a significant increase in SAFS and a steady decrease of SSL over the past decades. Because females are a key element of population dynamics and no information exists on the post-breeding pup rearing period, we studied the foraging patterns of SSL females in the La Plata River Estuary (LPRE) during mid and late lactation (late austral autumn and winter), analyzing the foraging performance, geographic coverage and ontogenetic differences in foraging strategies for a period of 1-5 months. At-sea movements of 22 SSL females (6 subadults and 16 adults) from Isla de Lobos (IL, 35°01'28"S-54°52'59"W, Uruguay) were monitored using satellite transmitters (SPOT4, SPOT5 and STDR-S16, Wildlife Computers) in 2007 and 2010. An algorithm [McConnell, B.J., Chambers, C., Fedak, M.A., 1992. Foraging ecology of southern elephant seals in relation to the bathymetry and productivity of the Southern Ocean. Antarct. Sci. 4, 393-398.] with a maximum transit speed of 3 m s-1 was applied to the Argos information, resulting in a total of 2522 filtered locations. A daily mean of 3.5±1.74 filtered locations per animal was received. One hundred and eighty three foraging trips (FT) were recorded with no significant differences (plactating females decrease FT duration by increasing transit speed but maintain a similar spatial coverage compared with FT later in lactation. Although several aquatic areas of high priority for conservation in LPRE have been identified and proposed, only 15% of the foraging habitat of SSL females is currently included in these areas. This emphasizes the importance of the inclusion of the at-sea foraging distributions of central point foragers in marine protected areas. If conservation efforts focus only on coastal breeding concentrations, key

  5. New zircon ages on the Cambrian-Ordovician volcanism of the Southern Gemericum basement (Western Carpathians, Slovakia): SHRIMP dating, geochemistry and provenance

    Science.gov (United States)

    Vozárová, Anna; Rodionov, Nickolay; Šarinová, Katarína; Presnyakov, Sergey

    2017-09-01

    The Southern Gemericum basement in the Inner Western Carpathians, composed of low-grade volcano-sedimentary rock complexes, constitutes a record of the polyphase Cambrian-Ordovician continental volcanic arc volcanism. These metavolcanic rocks are characterized by the enrichment in K, Rb, Ba, Th and Ce and Sm relative to Ta, Nb, Hf, Zr, Y and Yb that are the characteristic features for volcanic arc magmatites. The new SHRIMP U-Pb zircon data and compilation of previously published and re-evaluated zircon ages, contribute to a new constrain of the timing of the Cambrian-Ordovician volcanism that occurred between 496 and 447 Ma. The following peaks of the volcanic activity of the Southern Gemericum basement have been recognized: (a) mid-late Furongian at 492 Ma; (b) Tremadocian at 481 Ma; (c) Darriwilian at 464 Ma prolonged to 453 Ma within the early Upper Ordovician. The metavolcanic rocks are characterized by a high zircon inheritance, composed of Ediacaran (650-550 Ma), Tonian-Stenian (1.1-0.9 Ma), and, to a lesser extent, Mesoproterozoic (1.3 Ga), Paleoproterozoic (1.9 Ga) and Archaean assemblages (2.6 Ga). Based on the acquired zircon populations, it could be deduced that Cambrian-Ordovician arc crust was generated by a partial melting of Ediacaran basement in the subduction-related setting, into which old crustal fragments were incorporated. The ascertained zircon inheritances with Meso-, Paleoproterozoic and Archaean cores indicate the similarities with the Saharan Metacraton provenance.

  6. The zircon evidence of temporally changing sediment transport—the NW Gondwana margin during Cambrian to Devonian time (Aoucert and Smara areas, Moroccan Sahara)

    Science.gov (United States)

    Gärtner, Andreas; Youbi, Nasrrddine; Villeneuve, Michel; Sagawe, Anja; Hofmann, Mandy; Mahmoudi, Abdelkader; Boumehdi, Moulay Ahmed; Linnemann, Ulf

    2017-03-01

    Detrital zircon provenance studies are an established tool to develop palaeogeographic models, mostly based on zircon of siliciclastic rocks and isotope data. But zircon is more than just istopes and features well definable morphological characteristics. The latter may indicate single grain transport histories independent of the individual grade of concordance. This additional tool for palaeogeoraphic reconstructions was tested on zircon from siliciclastic and carbonate sedimentary rocks of Palaeozoic age from the Aoucert and Smara areas of the Souttoufides, while findings of zircon in limestone generally open new archives for sedimentary provenance analysis. The morphologies—length, width, roundness, grain surfaces—of 834 detrital zircons from sediments of allochthonous Cambrian, and (par-)autochthonous Ordovician, and Devonian units were studied, while 772 of them were analysed for their U-Th-Pb isotopes by LA-ICP-MS. Mesoproterozoic zircon contents of more than 10% in the Cambrian sediments exclude the West African Craton (WAC) as exclusive source area. Thus, at least one additional external source is suggested. This is likely the western Adrar Souttouf Massif with its significant Mesoproterozoic zircon inheritance, or comparable, yet unknown sources. Decreasing Mesoproterozoic zircon age populations in Ordovician sediments are thought to be linked to the rifting of the terranes in the course of the Rheic Ocean opening and a predominant supply of WAC detritus. The Devonian sediments likely contain reworked material from the Cambrian siliciclastics, which is shown by the zircon age distribution pattern and the zircon morphologies. Therefore, multiple shifts in the direction of sedimentary transport are indicated.

  7. O terapeuta na psicoterapia de grupo El terapeuta en la psicoterapia de grupo The therapist in group psychotherapy

    Directory of Open Access Journals (Sweden)

    Luiz Paulo de C. Bechelli

    2005-04-01

    Full Text Available Psicoterapia de grupo designa, atualmente, um amplo espectro de procedimentos fundamentados nos mais variados referenciais teóricos, aplicados em diferentes contextos. O objetivo do presente estudo é abordar o papel do terapeuta de grupo, delineando algumas estratégias e habilidades necessárias para o exercício da grupoterapia. Os autores enfatizam o nível técnico-científico em que o trabalho com grupos é desenvolvido e a influência da personalidade do terapeuta nos participantes. Concluem que, para que o terapeuta possa preservar seu papel, sem perder a especificidade de sua função por envolvimento com as múltiplas situações vividas com os pacientes, é fundamental a estabilidade de sua identidade profissional. Nesse sentido, o preparo do terapeuta, a partir de seu processo de formação continuada, é condição necessária para habilitá-lo a enfrentar as situações peculiares do contexto grupal, de modo a conferir à psicoterapia de grupo seu singular potencial terapêutico.Psicoterapia de grupo designa, actualmente, un amplio espectro de procedimientos basados en los más variados referenciales teóricos, aplicados en diferentes contextos. El objetivo de este estudio es comprender el papel del terapeuta de grupo, delineando algunas estrategias y habilidades necesarias para el ejercicio de la grupoterapia. Los autores enfatizaron el nivel técnico-científico en que el trabajo con grupos es desarrollado y la influencia de la personalidad del terapeuta en los participantes. Los autores concluyen que, para que el terapeuta mantenga su rol, sin perder la especificidad de su función por su involucramiento con las varias situaciones vividas con los pacientes, es fundamental la estabilidad de su identidad profesional. En ese sentido, la preparación del terapeuta, a partir de su proceso de formación continuada, es condición necesaria para el enfrentamiento de las situaciones peculiares del contexto grupal, de manera a conferir a

  8. La experiencia de Uruguay: el Proyecto de Ley de Defensa de la Salud Reproductiva The experience in Uruguay: the Bill for the Defense of Reproductive Health

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    Mónica Xavier

    2005-04-01

    ties that projected it beyond the country's borders. The article briefly reviews the background and basis for the bill, the research it entailed, and the international commitments assumed by Uruguay, before concluding with a summary of the bill itself and the challenges it poses in terms of sexual and reproductive rights, specifically with regard to voluntary interruption of pregnancy.

  9. Percepção dos profissionais sobre o tratamento no fim da vida, nas unidades de terapia intensiva da Argentina, Brasil e Uruguai Perceptions about end of life treatment in Argentina, Brazil and Uruguay intensive care units

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    Rachel Duarte Moritz

    2010-06-01

    Full Text Available OBJETIVO: Avaliar as condutas tomadas nas Unidades de Terapia Intensiva (UTI com os pacientes críticos terminais. MÉTODOS: Os membros do grupo de estudo do final da vida das sociedades Argentina, Brasileira e Uruguaia de Terapia Intensiva elaboraram um questionário no qual constavam avaliações demográficas sobre os participantes, sobre as instituições em que os mesmos trabalhavam e decisões sobre limite de esforço terapêutico (LET. Neste estudo de corte transversal os membros da equipe multiprofissional das sociedades responderam o questionário durante eventos científicos e, via on line. As variáveis foram analisadas através do teste qui-quadrado sendo considerado significativa pABSTRACT OBJECTIVE: To evaluate end-of-life procedures in intensive care units. METHODS: A questionnaire was prepared by the End-of-Life Study Group of the Argentinean, Brazilian and Uruguayan Intensive Care societies, collecting data on the participants’ demographics, institutions and limit therapeutic effort (LTE decision making process. During this cross sectional study, the societies’ multidisciplinary teams members completed the questionnaire either during scientific meetings or online. The variables were analyzed with the Chi-square test, with a p<0.05 significance level. RESULTS: 420 professionals completed the questionnaire. The Brazilian units had more beds, unrestricted visit was less frequent, their professionals were younger and worked more recently in intensive care units, and more non-medical professionals completed the questionnaire. Three visits daily was the more usual number of visits for the three countries. The most influencing LTE factors were prognosis, co-morbidities, and therapeutic futility. In the three countries, more than 90% of the completers had already made LTE decisions. Cardiopulmonary resuscitation, vasoactive drugs administration, dialysis and parenteral nutrition were the most suspended/refused therapies in the three

  10. Activation of shared identities on the Uruguayan and Brazilian frontier triggered by the construction of Uruguay as a consumption proposal

    Directory of Open Access Journals (Sweden)

    Roberta Brandalise

    2016-12-01

    Full Text Available Estudamos a participação do jornalismo brasileiro na articulação de representações sociais e de identidades culturais na fronteira Brasil-Uruguai, a partir das apropriações e usos que brasileiros e uruguaios fronteiriços fizeram de narrativas noticiosas sobre o Uruguai e que eles consideraram relevantes em seu cotidiano. Realizamos o estudo de caso sob a perspectiva dos Estudos Culturais Britânicos e Latino-Americanos, com entrevistas semiestruturadas junto a uma amostra de 12 fronteiriços. O Uruguai foi caracterizado no discurso jornalístico como uma proposta de consumo, como destino turístico ou em função de seus produtos e recursos naturais. As narrativas noticiosas colaboraram para reforçar a identificação entre uruguaios e brasileiros com respeito ao pertencimento regional e ao estilo de vida.   PALAVRAS-CHAVE: Comunicação; Consumo; Fronteiras; Uruguai; Brasil.     ABSTRACT We studied the participation of Brazilian journalism in the articulation of social representations and of cultural identities on the Brazilian and Uruguayan border based on the news narratives about Uruguay that frontier Brazilians and Uruguayans appropriated, made use of and considered relevant in their everyday lives. We conducted the study case from the perspective of British and Latin American social studies, using semi-structured interviews for questioning 12 frontier people. Uruguay was featured in newspaper discourse as a consumption proposal, a tourist destination, or a stand for its products and natural resources. The narrative news helped to reinforce the mutual identification of Uruguayans and Brazilians with respect to their belonging to the region and their life style.   KEYWORDS: Communication; Consumption; Frontiers; Uruguay; Brazil.     RESUMEN Estudiamos la participación del periodismo brasileño en la articulación de representaciones sociales y de identidades culturales en la frontera Brasil-Uruguay, a partir de las

  11. Encuestas nacionales de ceguera y deficiencia visual evitables en Argentina, El Salvador, Honduras, Panamá, Perú y Uruguay

    Directory of Open Access Journals (Sweden)

    Juan Carlos Silva

    2014-10-01

    Full Text Available OBJETIVO: Describir la justificación y metodología usadas en la Evaluación Rápida de Ceguera Evitable empleada para efectuar encuestas a nivel nacional entre 2011 y 2013 en Argentina, El Salvador, Honduras, Panamá, Perú y Uruguay. MÉTODOS: La encuesta se dirige a personas de 50 años o más, lo que reduce al mínimo los requisitos de tamaño de la muestra, que oscila entre 2 000 y 5 000 personas. Se emplean sistemas simples de muestreo y técnicas de examen; el análisis de datos es automático y no requiere de un experto en estadística. Es relativamente económica, ya que no toma mucho tiempo, no requiere equipos oftalmológicos costosos y puede ser llevada a cabo por el personal local. Los informes son generados mediante el propio programa informático de la evaluación. RESULTADOS: Los indicadores generados son la prevalencia de la ceguera y la deficiencia visual severa y moderada (discriminadas por causas evitables y cataratas; la prevalencia de afaquia o pseudofaquia; la cobertura de la cirugía de cataratas; el resultado visual de las cirugías de cataratas; las causas de resultados malos; las barreras de acceso a la cirugía de cataratas; y los indicadores de servicio de la cirugía de cataratas. Los resultados de cada una de las encuestas serán publicados de manera secuencial en números sucesivos de la revista, y en un artículo final de resumen se hará un análisis de los resultados en su conjunto y comparativo entre las encuestas y con aquellas publicadas anteriormente, que aportará un estado de la situación actual en ese grupo de países. CONCLUSIONES: La Evaluación Rápida de Ceguera Evitable es una metodología sólida, sencilla y económica para determinar la prevalencia de ceguera y deficiencia visual y la cobertura y calidad de los servicios de salud ocular, y representa una herramienta muy valiosa para medir el progreso de los programas de prevención de la ceguera y su impacto en la población.

  12. DNA multigene characterization of Fasciola hepatica and Lymnaea neotropica and its fascioliasis transmission capacity in Uruguay, with historical correlation, human report review and infection risk analysis

    Science.gov (United States)

    Gayo, Valeria; Sanchis, Jaime; Artigas, Patricio; Khoubbane, Messaoud; Birriel, Soledad; Mas-Coma, Santiago

    2017-01-01

    Background Fascioliasis is a pathogenic disease transmitted by lymnaeid snails and recently emerging in humans, in part due to effects of climate changes, anthropogenic environment modifications, import/export and movements of livestock. South America is the continent presenting more human fascioliasis hyperendemic areas and the highest prevalences and intensities known. These scenarios appear mainly linked to altitude areas in Andean countries, whereas lowland areas of non-Andean countries, such as Uruguay, only show sporadic human cases or outbreaks. A study including DNA marker sequencing of fasciolids and lymnaeids, an experimental study of the life cycle in Uruguay, and a review of human fascioliasis in Uruguay, are performed. Methodology/Principal findings The characterization of Fasciola hepatica from cattle and horses of Uruguay included the complete sequences of the ribosomal DNA ITS-2 and ITS-1 and mitochondrial DNA cox1 and nad1. ITS-2, ITS-1, partial cox1 and rDNA 16S gene of mtDNA were used for lymnaeids. Results indicated that vectors belong to Lymnaea neotropica instead of to Lymnaea viator, as always reported from Uruguay. The life cycle and transmission features of F. hepatica by L. neotropica of Uruguay were studied under standardized experimental conditions to enable a comparison with the transmission capacity of F. hepatica by Galba truncatula at very high altitude in Bolivia. On this baseline, we reviewed the 95 human fascioliasis cases reported in Uruguay and analyzed the risk of human infection in front of future climate change estimations. Conclusions/Significance The correlation of fasciolid and lymnaeid haplotypes with historical data on the introduction and spread of livestock into Uruguay allowed to understand the molecular diversity detected. Although Uruguayan L. neotropica is a highly efficient vector, its transmission capacity is markedly lower than that of Bolivian G. truncatula. This allows to understand the transmission and

  13. DNA multigene characterization of Fasciola hepatica and Lymnaea neotropica and its fascioliasis transmission capacity in Uruguay, with historical correlation, human report review and infection risk analysis.

    Directory of Open Access Journals (Sweden)

    María Dolores Bargues

    2017-02-01

    Full Text Available Fascioliasis is a pathogenic disease transmitted by lymnaeid snails and recently emerging in humans, in part due to effects of climate changes, anthropogenic environment modifications, import/export and movements of livestock. South America is the continent presenting more human fascioliasis hyperendemic areas and the highest prevalences and intensities known. These scenarios appear mainly linked to altitude areas in Andean countries, whereas lowland areas of non-Andean countries, such as Uruguay, only show sporadic human cases or outbreaks. A study including DNA marker sequencing of fasciolids and lymnaeids, an experimental study of the life cycle in Uruguay, and a review of human fascioliasis in Uruguay, are performed.The characterization of Fasciola hepatica from cattle and horses of Uruguay included the complete sequences of the ribosomal DNA ITS-2 and ITS-1 and mitochondrial DNA cox1 and nad1. ITS-2, ITS-1, partial cox1 and rDNA 16S gene of mtDNA were used for lymnaeids. Results indicated that vectors belong to Lymnaea neotropica instead of to Lymnaea viator, as always reported from Uruguay. The life cycle and transmission features of F. hepatica by L. neotropica of Uruguay were studied under standardized experimental conditions to enable a comparison with the transmission capacity of F. hepatica by Galba truncatula at very high altitude in Bolivia. On this baseline, we reviewed the 95 human fascioliasis cases reported in Uruguay and analyzed the risk of human infection in front of future climate change estimations.The correlation of fasciolid and lymnaeid haplotypes with historical data on the introduction and spread of livestock into Uruguay allowed to understand the molecular diversity detected. Although Uruguayan L. neotropica is a highly efficient vector, its transmission capacity is markedly lower than that of Bolivian G. truncatula. This allows to understand the transmission and epidemiological differences between Andean highlands

  14. Influencia de las descargas de los asentamientos urbanos sobre el Río Uruguay entre los años 1998 y 2004

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    Constanza Gabriela Llorente

    2017-05-01

    Full Text Available El Río Uruguay integra junto con el Paraná y el Paraguay la Cuenca del Plata; recorriendo aproximadamente unos 1700 Km desde su naciente en la Sierra do Mar (Brasil hasta su desembocadura en el Río de la Plata. En el trayecto correspondiente a su cuenca baja (desde la línea imaginaria Bella Unión – Monte Caseros, sirve como límite internacional entre la República Argentina y la República Oriental del Uruguay, zona que es administrada por la Comisión Administradora del Río Uruguay (CARU. Sobre las márgenes del Río se encuentran asentamientos urbanos importantes como Concordia, Colón, Concepción del Uruguay y Gualeguaychú de la margen Argentino y Salto, Paysandú y Fray Bentos de la margen Uruguaya; estos asentamientos presentan importantes desarrollos agrícolas e industriales con descarga directa al río. En este trabajo analizaremos la influencia de estas descargas sobre el Río Uruguay en el periodo 1998-2004.

  15. Reform of abortion law in Uruguay: context, process and lessons learned.

    Science.gov (United States)

    Wood, Susan; Abracinskas, Lilián; Correa, Sonia; Pecheny, Mario

    2016-11-01

    In October 2012, a new law was approved in Uruguay that allows abortion on demand during the first 12 weeks of pregnancy, 14 weeks in the case of rape, and without a time limit when the woman's health is at risk or in the case of foetal anomalies. This paper analyses this legal reform. It is based on 27 individual and group interviews with key informants, and on review of primary documents and the literature. The factors explaining the reform include: secular values in society, favourable public opinion, a persistent feminist movement, effective coalition building, particular party politics, and a vocal public health sector. The content of the new law reflects the tensions between a feminist perspective of women's rights and public health arguments that stop short of fully recognizing women's autonomy. The Uruguayan reform shows that, even in Latin America, abortion can be addressed politically without electoral cost to the parties that promote it. On the other hand, the prevailing public health rationale and conditionalities built into the law during the negotiation process resulted in a law that cannot be interpreted as a full recognition of women's rights, but rather as a modified protectionist approach that circumscribes women's autonomy. Copyright © 2016 Elsevier Inc. All rights reserved.

  16. [Evaluation of the Charing Cross Venous Ulcer Questionnaire in patients with chronic venous ulcers in Uruguay].

    Science.gov (United States)

    Tafernaberry, Gabriela; Otero, Gabriela; Agorio, Caroline; Dapueto, Juan J

    2016-01-01

    Chronic venous ulcers (CVU) represent a frequent condition, with difficult therapeutic approaches, that impact on patients’ quality of life, and generate an economic burden to patients and health systems. To perform the cultural adaptation and initial evaluation of the Charing Cross Venous Ulcer Questionnaire (CCVUQ) for Uruguay, and to study the health-related quality of life (HRQL) of patients with CVU. The translated and culturally adapted version of the CCVUQ was applied to a convenience sample of 50 patients. In addition, the PROMIS Global Health Survey was included in the assessment. Both questionnaires showed good internal consistency (Cronbach alfa > 0.70). A statistically significant association was observed between the CCVUQ total scores, its subscales and both dimensions of the PROMIS: Global Physical (GPH) and Global Mental Health (GMH) (rho ≥ 0.40). The CCVUQ mean score was 54.9 ± 42 points while GPH and GMH mean scores were 37.9 ± 29 points, and 43.1 ± 35.1 points respectively. Simple linear regression showed that patients with higher income reported better emotional well-being, while in younger patients, ulcers had a higher impact on Emotional Status and Cosmetics. The translated and adapted version of the CCVUQ was easy to comprehend and apply, showing good psychometric properties. When used in association with the PROMIS Global Health Measure it provides complementary information. HRQL was severely affected in the study sample.

  17. Uruguay: cambios políticos recientes y su contexto socioeconómico

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    Gerónimo de Sierra

    2001-01-01

    Full Text Available El artículo describe y analiza las significativas novedades que introdujo en el sistema de partidos y las relaciones políticas del Uruguay el resultado de las elecciones nacionales, a dos vueltas, de octubre y noviembre de 1999. En particular, el fin del bipartidismo tradicional; la constitución como partido claramente mayoritario a nivel nacional, y de algunos departamentos, del Frente Amlio/ Encuentro Progresista; la cuasi necesidad de gobiernos de coalición; los nuevos dilemas del pluralismo efectivo de partidos; la novedad de que el candidato del partido mayoritario no ocupe la presidencia del país. Al mismo tiempo, presenta resumidamente las transformaciones externas y las crisis socioeconómicas locales, fenómenos que enmarcan dicho proceso; así como su posible incidencia –-junto a los cambios de las reglas electorales— en los resultados electorales y en las perspectivas de gobernabilidad en el país. Finalmente, analiza el funcionamiento del gobierno y sus relaciones con la oposición política en el primer año del nuevo escenario post electoral.

  18. Package design and nutritional profile of foods targeted at children in supermarkets in Montevideo, Uruguay

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    Ana Giménez

    Full Text Available Abstract: Marketing of unhealthy products has been identified as one of the main characteristics of the food environment that negatively affects children’s eating patterns. Restrictions on advertising of unhealthy foods to children have already been imposed in different countries. However, marketing strategies are not limited to broadcast and digital advertising, but also include package design. In this context, the current study aimed to describe the food products targeted at children and sold in supermarkets in Montevideo, Uruguay, in terms of package design and nutrient profile. Two supermarkets in Montevideo were selected for data collection. In each supermarket, all products targeted at children were identified. Products were analyzed in terms of package design and nutritional profile, considering the Pan American Health Organization Nutrient Profile Model. A total of 180 unique products were identified, which included a wide range of product categories. The great majority of the products corresponded to ultra-processed products with excessive amounts of sodium, free sugars, total fat, saturated fat, and/or trans fat, which are not recommended for frequent consumption. Several marketing strategies were identified in the design of packages to attract children’s attention and drive their preferences. The most common strategies were the inclusion of cartoon characters, bright colors, childish lettering, and a wide range of claims related to health and nutrition, as well as the products’ sensory and hedonic characteristics. The study’s findings provide additional evidence on the need to regulate packaging of products targeted at children.

  19. Rh factor, family history and risk of breast cancer: a case-control study in Uruguay.

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    Ronco, Alvaro L; Stoll, Mario; De Stéfani, Eduardo; Maisonneuve, Juan E; Mendoza, Beatriz A; Deneo-Pellegrini, Hugo

    2009-01-01

    To explore possible relationships among blood factors, family history of breast cancer (BC) and the risk of the disease, a case-control study was carried out in Montevideo, Uruguay. Eight hundred and one patients were interviewed, including 252 certified cases of BC and 549 frequency-matched controls. Blood groups (ABO, Rh) were obtained from medical records. Multivariate analyses were performed, adjusting for age, selected menstrual and reproductive factors, and family history of BC as well as of other cancers. We found that the absence of Rh factor (Rh-) was positively associated with the risk of BC (adjusted Odds Ratio [OR]=1.49, 95% Confidence Interval [95% CI] 1.05-2.11). Stratified analyses by family history of BC showed a strong association for Rh- with a positive history of first degree relatives (OR=3.17, 95% CI 1.06-9.47). Also stratified analyses by family history of other cancers showed a positive association for Rh- with a positive history of first degree relatives (OR=2.08, 95% CI 1.05-4.11). Regarding the implications of an inherited factor like Rh and its associations with the family history of BC, it might increase the probability to generate high-risk individuals if further studies confirm the present preliminary findings.

  20. Elite Framing of Inequality in the Press: Brazil and Uruguay Compared

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    Matias López

    2016-04-01

    Full Text Available Current elite studies argue that inequality produces negative externalities to elites, who may either promote democracy or adopt authoritarian measures in order to shield their interests from the actions of the rebellious poor. This article argues that elite framing of poverty and inequality in the press is a good thermometer of elite public response to such externalities. The press represents a communication tool shared by elites in the state, market, civil society, and, most evidently, the media itself. If inequality threatens elite rule, elites should share their concerns in order to move towards a solution. Since the literature links inequality and elite response, I propose undertaking a comparison of elite public responses to poverty and inequality in two South American cases with opposite records of inequality: Brazil and Uruguay. The article approaches elite framing of poverty and inequality in the press by analyzing opinion pieces and editorials in the main newspapers of both countries. Results invert the expected link between inequality and elite response. Elite framing of inequality in the Brazilian press did not suggest elite concern with externalities, neither an elite turn towards more democracy or authoritarianism. Contrastingly, a few Uruguayan elites did frame the poor as menacing.

  1. Mobbing in Schools and Hospitals in Uruguay: Prevalence and Relation to Loss of Status.

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    Buunk, Abraham P; Franco, Silvia; Dijkstra, Pieternel; Zurriaga, Rosario

    2016-01-19

    In the present study in secondary schools and hospitals in Uruguay (N = 187), we examined the relationship between feeling the victim of mobbing and a perceived loss of status. Nearly all forms of mobbing were more prevalent among hospital employees than among school employees. Among hospital employees, 40.4%, and among school employees, 23.9% reported being the victim of mobbing at least once a week. Being the victim of mobbing was, in both hospitals and schools, more prevalent among older employees, and in hospitals, among employees who were more highly educated and who had been employed for a longer time. Men and women did not differ in reporting that one was a victim of mobbing, but men reported more perceived loss of status than women. However, among women, being the victim of mobbing was much more strongly related to experiencing a loss of status than among men. Several explanations for this gender difference and the practical and theoretical implications of the results are discussed. © The Author(s) 2016.

  2. Uruguay y Alemania: negocios y negociaciones de la década del treinta

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    María Magdalena Camou

    2014-06-01

    Full Text Available En las vísperas de la Segunda Guerra Mundial, en el marco del cerramiento de la economía como consecuencia de la crisis mundial de 1929, las relaciones económicas y comerciales entre Alemania y Uruguay se intensificaban a través de un mecanismo complejo y poco transparente de trueque. El relevamiento de las estadísticas de comercio exterior alemanas y uruguayas, y de la correspondencia diplomática permiten analizar las dimensiones y características del intercambio económico entre ambos países. El enfoque desde estas fuentes constituye una aproximación inédita para la historiografía a un tema que no ha sido abordado sistemáticamente pero que generó en aquel momento –y aún genera– muchas interrogantes. Las fuentes consultadas fueron diversos archivos históricos alemanes y la biblioteca del Instituto Ibero-Americano de Berlín. Lamentablemente la documentación de la cancillería uruguaya es muy escasa. La documentación alemana es mucho más abundante pero no completa debido a la destrucción voluntaria o involuntaria que sufrieron los documentos en el derrumbamiento del Tercer Reich. Todos los documentos alemanes utilizados en esta investigación fueron traducidos por la autora.

  3. Cabinet Appointment in Uruguay: Legislative Strategy, hierarchy of portfolio and party affiliation of ministers

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    Daniel CHASQUETTI

    2013-07-01

    Full Text Available The article analyzes the formation and change of presidential cabinets in Uruguay during the period 1985-2010. In the first section we present the institutional and political features of the process of appointment and resignation of the ministers. The second section describes the cabinets formed in this period and shows that presidents have exchanged seats in cabinet by legislative support. The third section analyzes the political attributes of the ministers appointed (party affiliation, previous experience and the type of linkage that they keep with the president. The fourth analyze the relationship between the time survival of the individuals in office, the political responsibility in front of congress and the existence of a legislative majority that support the president. The last section describes the Uruguayan pattern of ministerial designation based in (i the establishment of an order of importance of portfolios, (ii the nomination of individuals with party affiliation (weather insider or adherent politicians and (iii the influence of the legislative support in defining the ministerial team.

  4. Una aproximación al PIB turístico departamental de Uruguay en 2010

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    María José Alonsoperez

    2014-01-01

    Full Text Available En el presente estudio se estima el PIB turístico (PIBT departamental de Uruguay, regionalizando los resultados obtenidos en el ejercicio piloto de Cuentas Satélite de Turismo en el año 2008, usando la metodología de (Geary y Stark, 2002. Se encuentra que los departamentos de Montevideo y Maldonado generan el 62,92% del PIBT cuando se consideran sólo las actividades Hoteles y Restaurantes en 2010. La distribución departamental parece no diferir estadísticamente de las últimas aproximaciones oficiales que datan de 2006. Se aprecia que más del 80% del PIBT se concentra en la costa sur del país. Cabe destacar el gran crecimiento, tanto en la producción como en participación, que presenta el departamento de Rocha y que puede estar relacionada al desarrollo turístico que ha tenido en los últimos años.

  5. Acceso y calidad del empleo de la inmigración reciente en Uruguay

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    Victoria Prieto

    Full Text Available Resumen Este artículo analiza las características de acceso y calidad de la inserción laboral de los inmigrantes extranjeros llegados a Uruguay entre 2007 y 2015. Los desempeños de los inmigrantes se comparan con los de la población nativa no migrante y retornada, primero de forma bivariada, luego mediante la inclusión de la condición migratoria en la estimación de modelos logísticos binomiales de la probabilidad de empleo, informalidad y sobrecalificación. La fuente empleada corresponde a las Encuestas Continuas de Hogares del período 2012 – 2015. Los resultados muestran una desventaja sistemática en el acceso al empleo de la población extranjera, y mayor riesgo de sobrecalificación y de informalidad entre los ocupados del mismo origen. Dentro de los extranjeros las mujeres tienen menores chances de insertarse en el mercado de trabajo pero no se encuentra un efecto negativo de la doble condición mujer-inmigrante en los indicadores de calidad del empleo. Si bien el tiempo de asentamiento mitiga el efecto adverso de la condición inmigratoria sobre el empleo, la informalidad y sobrecalificación, éste no desaparece entre los inmigrantes más antiguos.

  6. Políticas públicas de lectura: el caso de Uruguay

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    Magela Cabrera Castiglioni

    2014-10-01

    Full Text Available  Se presentan los programas y acciones desarrollados en Uruguay en torno a la lectura en los últimos años desde la perspectiva de las políticas públicas. Se realiza una aproximación a algunos conceptos generales de políticas públicas, los cuales permiten delimitar un enfoque del tema, presentando a la vez un estudio de caso, que contempla aspectos como ser el rol del Estado; los actores involucrados; el grado de articulación de las políticas; la introducción de las tecnologías de la información y la comunicación y; el ejercicio de ciudadanía. Presenta la perspectiva de las competencias lectoras, superando la visión tradicional de la lectura asociada únicamente al placer y la recreación, demostrando su potencial de desarrollo e inclusión social. Finalmente se destaca el papel de los profesionales de la información en la injerencia de este tema, ya sea desde la academia, o desde el rol de dinamizadores y sensibilizadores respecto al mismo.

  7. Temporal and spatial changes in the diet of Hyla pulchella (Anura, Hylidae in southern Uruguay

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    Inés da Rosa

    2004-12-01

    Full Text Available In this article we report the diet of a population of the hylid frogHyla pulchella from southeastern Uruguay. We collected the specimens in ponds, where we identified microenvironments defined by the invertebrate assemblage, during one year divided into two seasons (warm and cold. We taxonomically determined 10365 invertebrates belonging to 21 categories in the digestive tracts of frogs. Weestimated the diversity of the diet and alimentary preference according to microenvironments and seasons. We estimated the expected richness of both diet and prey availability using a null model based on the hypergeometric distribution. We performed Discriminant Analyses and Kruskal-Wallis tests to detect changes in prey availability among microenvironments and between seasons. The overall diet in terms of frequencies was composed primarily of arthropods (mainly Araneae, Diptera, Hymenoptera, and Coleoptera and in terms of volume, by larvae. The most relevantitems to study the microenvironmental and seasonal variation in the available preys were Araneae, Collembola, Homoptera, Hymenoptera, Diptera, Dictioptera, Lepidoptera, Coleoptera, and larvae. Based on the null model curves and preference indexes we inferred positive selection by larvae, Isopoda, Dictioptera, Lepidoptera, and Diptera, and negative selection by Collembola and Hymenoptera. The diversityof diet and the null model curves indicated that the diet changes among microenvironments and seasons. This frog may be considered as a middle generalist predator, with some selective behavior and a combined search strategy (active and sit-and-wait. We conclude that the knowledge about the availability of preys is a relevant tool for trophic studies.

  8. Presence of Political Parties and Deputies in Internet in Argentina, Paraguay and Uruguay

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    Yanina Welp

    2016-01-01

    Full Text Available According to Latinobarómetro, political parties are the institutions which less confidence receive from Latin Americans. This is not a particularity of Latin America, but a documented problem of Western consolidated democracies.In this context, in Europe and United States, among others, the use of digital media become a tool to overcome the crisis of representation, given their capacities to renovate politics, and because they allow the offering of more publicity of public matters as well as the opening up of new channels of participation and communication between citizens and representatives. But to what extent and with which features is this adoption happening in Latin America? Based on the study of the online presence of political parties and deputies of Argentina, Paraguay and Uruguay (webs, blogs, Facebook and Twitter, this article explores the levels of digital media adoption and the influence of variables such as the internet diffusion in the country, the crisis of representation and the characteristics of political parties (institutionalization, ideology, size, role of leaders explaining the extension and characteristics of this adoption. 

  9. Bivalve molluscs of São Marcos locality, Medium Uruguay River Basin, Brazil

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    Édison Vicente Oliveira

    2007-12-01

    Full Text Available To verification of quali-quantitative it has been accomplished collected of bivalve molluscs during the period of twelve months, together with analysis of some abiotic variables in the middle care of Uruguay river, situated in São Marcos, Uruguaiana municipality. The place where the collects has been accomplished, were divided in three distinct spots, considerating the substract type predominant; sand, rock and mud. The individuals were collected using hands and with. The selection screen aid, of 0.8mm size net and were conserved in a dry environment. They had been collected a total of 1,022 units of bivalves, wich belong to 12 taxa, being that of these only specimens Cyanocyclas limosa and Diplodon parallelopipedon had been captured alive (tanatocenosis. It had great quantitative predominance of Corbicula fluminea and Diplodon uruguayensis. With exception of bivalves invading, the too much species had been collected only in the slimy substratum. Other species occurrence were Mycetopoda siliquosa and Anodontites trigonus, there two species a vulnerable to extinction in Rio Grande do Sul.

  10. CUIDAR EN LA VEJEZ: DESIGUALDADES DE GÉNERO EN URUGUAY

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    Rosario Aguirre Cuns

    2016-01-01

    Full Text Available Este artículo tiene como objetivo contribuir al desarrollo de una perspectiva latinoamericana de vejez y género y aportar conocimientos en torno a los cuidados en la vejez en Uruguay. Desde una perspectiva feminista del cuidado, realiza una breve reflexión sobre la construcción social de la vejez, el género y su vínculo con el cuidado. A partir de información empírica reciente, cuya fuente es la Encuesta de Uso del Tiempo 2013, se da cuenta de las desigualdades de género en la provisión de cuidados por parte de las personas mayores a través de las tasas de participación y el tiempo dedicado a estas actividades. Considerando la división sexual del trabajo durante todo el curso de vida de los varones y mujeres, se argumenta sobre la necesidad de cuestionar la idea de envejecimiento activo como fundamento de las políticas públicas. Se propone incorporaruna mirada sobre las personas mayores como realizadoras de cuidados y tareas domésticas que contribuyen al bienestar social y familiar y no sólo como dependientes que requieren de cuidados de provisión familiar y pública en la vejez avanzada.

  11. Cuidar y ser cuidado en la vejez: desigualdades de género en Uruguay

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    Rosario Aguirre Cuns

    2016-03-01

    Full Text Available Este artículo tiene como objetivo contribuir al desarrollo de una perspectiva latinoamericana de vejez y género y aportar conocimientos en torno a los cuidados en la vejez en Uruguay. Desde una perspectiva feminista del cuidado, realiza una breve reflexión sobre la construcción social de la vejez, el género y su vínculo con el cuidado. A partir de información empírica reciente, cuya fuente es la Encuesta de Uso del Tiempo 2013, se da cuenta de las desigualdades de género en la provisión de cuidados por parte de las personas mayores a través de las tasas de participación y el tiempo dedicado a estas actividades. Considerando la división sexual del trabajo durante todo el curso de vida de los varones y mujeres, se argumenta sobre la necesidad de cuestionar la idea de envejecimiento activo como fundamento de las políticas públicas. Se propone incorporar una mirada sobre las personas mayores como realizadoras de cuidados y tareas domésticas que contribuyen al bienestar social y familiar y no sólo como dependientes que requieren de cuidados de provisión familiar y pública en la vejez avanzada.

  12. Colombia, España, Uruguay, Costa Rica, Cuba, Ecuador: Seguridad Social para el adulto mayor

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    Oscar José Dueñas Ruiz

    2012-01-01

    Full Text Available Estudio de tres bloques de derechos necesarios para el adulto mayor: salud, pensiones y servicios sociales. Se analizan dentro de un marco conceptual jurídico e histórico, acudiéndose a un lenguaje sencillo y entendible. Este artículo es corolario de un proyecto investigativo ya terminado elaborado por la Universidad del Rosario y la Organización Iberoamericana de la Seguridad Social (OISS. Se estudiaron esos tres derechos en el escenario colombiano, con base en la normatividad, la jurisprudencia y la praxis. Para tener una visión del ámbito iberoamericano se investigó el tratamiento que se les da en otros países: España, Ecuador, Cuba, Costa Rica, Uruguay, destacándose los rasgos más importantes. Varios capítulos fueron desarrollados con base en el método holístico dialéctico configuracional. Las conclusiones se ubican preferencialmente en un espacio jurídico. La principal consiste en que sea cual fuere el modelo de seguridad social, es indispensable una visión humanista.

  13. Early archosauromorph remains from the Permo-Triassic Buena Vista Formation of north-eastern Uruguay.

    Science.gov (United States)

    Ezcurra, Martín D; Velozo, Pablo; Meneghel, Melitta; Piñeiro, Graciela

    2015-01-01

    The Permo-Triassic archosauromorph record is crucial to understand the impact of the Permo-Triassic mass extinction on the early evolution of the group and its subsequent dominance in Mesozoic terrestrial ecosystems. However, the Permo-Triassic archosauromorph record is still very poor in most continents and hampers the identification of global macroevolutionary patterns. Here we describe cranial and postcranial bones from the Permo-Triassic Buena Vista Formation of northeastern Uruguay that contribute to increase the meagre early archosauromorph record from South America. A basioccipital fused to both partial exoccipitals and three cervical vertebrae are assigned to Archosauromorpha based on apomorphies or a unique combination of characters. The archosauromorph remains of the Buena Vista Formation probably represent a multi-taxonomic assemblage composed of non-archosauriform archosauromorphs and a 'proterosuchid-grade' animal. This assemblage does not contribute in the discussion of a Late Permian or Early Triassic age for the Buena Vista Formation, but reinforces the broad palaeobiogeographic distribution of 'proterosuchid grade' diapsids in Permo-Triassic beds worldwide.

  14. A multivariate approach to environmental-zooplankton relationships in Maldonado Bay (Uruguay

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    Ana Milstein

    1986-01-01

    Full Text Available Environment-zooplankton relationships were analysed in Maldonado Bay (Uruguay, an estuarine area between the River Plate and the Atlantic Ocean. This was done through Principal Component Analysis. Most of the environment variability is accounted for, primarily, by the outflow of the River Plate and the inflow of coastal waters which change through the annual cycle, and in the second place by surface water conditions. On the other hand, most of the zooplankton variability is accounted for by 17 taxa abundant in April and February and by one dominant species present only from May to August. A second source of zooplanktonic variability is due to species which occurred in fall only The main observed variabili ty occurred on an annual scale. On it, variations on smaller scales overlap: from one day to another, between Maldonado Bay and the adjacent waters of the River Plate. The main factors involved were different at each scale. The Bay is relatively isolated from adjacent waters, but the degree of isolation varies throughout the year. The influence of coastal water is greater and occurs first outside the Bay. Biological processes may develop under different conditions in the Bay and in the adjacent waters of the River Plate.

  15. Information skills in the National Reading Plan of Uruguay: Actions for social inclusion

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    María Gladys Ceretta

    2015-06-01

    Full Text Available It is described strategies that have been implemented to promote the development of information skills in the National Reading Plan of Uruguay that is under the responsability of the Ministry of Education and Culture, as a National Public Policy. They are aimed at vulnerable socio-economic contexts and help to the process of training reading promoters. We analyze and evaluate the experiences done with target populations that do not belong to the formal education area, especially those who are responsible for reading spaces such as public, community and popular libraries, among others. There are considered new forms of reading in a digital environment in the process of acquiring and strengthening of information skills to ensure equity in access and democratization of information and the process of knowledge construction. It is established the essential elements for the development of a model of information literacy to integrate the National Reading Plan that can coordinate with other areas and institutions and it may contribute to the social inclusion of individuals.

  16. Social policies in Uruguay: a view from the political dimension of community psychology.

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    Rodríguez-Ferreyra, Alicia

    2009-03-01

    This paper approaches social policy (SP) from the political perspective considered by Montero (Critical psychology: An introduction, Sage, London, pp 231-244, 1997; Community, Work and Family 1(1):65-78, 1998; Introducción a la Psicología Comunitaria. Desarrollo, conceptos y procesos, Paidos, Buenos Aires, pp 89-114, pp 255-284, 2004; Hacer para transformar. El método en la Psicología Comunitaria, Paidos, Buenos Aires, pp 229-256, 2004) as a paradigmatic dimension of community psychology. The field of SP, the characteristics of certain SPs and the role of SP in the production and reproduction of the subjectivities of those subject to them in Uruguay are described and an analysis given of the challenge posed by going from a compensatory or palliative to a transformative mode of SP. It is proposed that identification of, and understanding and intervention in, psychosocial processes in the field are the keys to maximising the likelihood of SPs assuming a transformative character. Psychosocial aspects and participatory processes implicit in the relationship between the State and civil society are discussed. Finally, some orientations for community psychological intervention in this field of action are proposed.

  17. Genetic variability of hepatitis B virus in Uruguay: D/F, A/F genotype recombinants.

    Science.gov (United States)

    Lopez, L; Flichman, D; Mojsiejczuk, L; Gonzalez, M V; Uriarte, R; Campos, R; Cristina, J; Garcia-Aguirre, Laura

    2015-09-01

    Hepatitis B virus (HBV) infection is a serious global health problem. Approximately 2 billion people worldwide have been infected, and approximately 350 million individuals currently suffer from HBV-induced chronic liver infection, which causes 600,000 deaths annually from chronic hepatitis, cirrhosis and hepatocellular carcinoma. HBV is classified in eight genotypes (A-H), and two more have been proposed (I-J). In this paper, complete genome sequences of nine Uruguayan HBV are reported. Five samples belong to genotype F1b and one to genotype A2. Three HBV recombinants were detected: A1/F1b, A2/F1b and D3/F1b. The following mutations were detected: a G1896A substitution, a 33-nucleotide deletion from position 2896 to 2928 in the Pre-S1 region involving Pre-S1 residues 3-13, a 33-nt deletion in the Pre-S1 region involving nt 2913-2945 and Pre-S1 residues 9-19. More F genotypes strains than expected were detected in this study, supporting the hypothesis that there are more people of indigenous origin than declared in our population. Also, one third of the samples analyzed were recombinants. This cannot be explained by the low HBV prevalence in Uruguay, but a high HBV infection rate in drug addicts and dialysis patients could act in favor of multiple-genotype HBV infections that could lead to recombination.

  18. Dietary patterns and risk of cancers of the upper aerodigestive tract: a factor analysis in Uruguay.

    Science.gov (United States)

    De Stefani, Eduardo; Boffetta, Paolo; Correa, Pelayo; Deneo-Pellegrini, Hugo; Ronco, Alvaro L; Acosta, Gisele; Mendilaharsu, María

    2013-01-01

    In the time period 1996-2004, we conducted a case-control study in Montevideo, Uruguay with the objective of exploring the role of foods and alcoholic beverages in the etiology of cancers of the upper aerodigestive tract (UADT). In brief, 563 male cases and 1099 male controls were frequency matched on age and residence using random sampling. All the participants were drawn from the 4 major public hospitals in Montevideo. We used exploratory factor analysis among controls. Through Scree plot test, the model retained 4 factors, which were labeled as prudent, starchy plants, Western, and drinker. These dietary patterns explained 34.8% of the total variance. Whereas the prudent pattern was inversely associated with UADT cancer [odds ratios (OR) for the upper tertile vs. the lowest one 0.52, 95% confidence intervals 0.32-0.76, P value for trend = 0.0005), the remaining patterns were significantly and positively associated with UADT cancers. We conclude that these patterns were similar among the oral and laryngeal cancers, both in the direction of the ORs and in the magnitude of the associations, suggesting that these cancer sites share the effect of dietary patterns in the etiology of cancer of the upper aerodigestive tract.

  19. Meat, fat and risk of laryngeal cancer: a case-control study in Uruguay.

    Science.gov (United States)

    Oreggia, F; De Stefani, E; Boffetta, P; Brennan, P; Deneo-Pellegrini, H; Ronco, A L

    2001-02-01

    The effect of meat and fat in laryngeal carcinogenesis was examined in a case-control study carried out in Uruguay in the time period 1998-1999. One-hundred and forty patients with squamous cell laryngeal carcinoma and 420 hospitalized patients, afflicted with conditions not related with tobacco smoking, alcohol drinking or recent dietary changes comprised the cases and controls in this study. All patients were interviewed face-to-face in the hospitals with a detailed questionnaire which included queries on 64 food items. Red and total meat intakes were associated with strong increases in risk of laryngeal cancer (odds ratio [OR] for high total meat intake 3.32, 95% confidence interval [C.I.] 1.23-8.95). This effect disappeared after controlling for total fat intake. On the other hand, total fat intake displayed a strong association with risk of laryngeal cancer when red meat was included in the same model (OR for high fat intake 7.05, 95% C.I. 2.51-19.8). Total fat intake combines its effect multiplicatively with tobacco smoking.

  20. High frequency of multiresistant coagulase-positive Staphylococcus aureus found in slaughter pigs in Uruguay.

    Science.gov (United States)

    Meyer, Cornelia; Fredriksson-Ahomaa, Maria; Stüber, Elisabeth; Thiel, Susanne; Märtlbauer, Erwin

    2012-01-01

    Staphylococcus aureus are a hazard to human health since they can cause infections and food poisoning. Antimicrobial resistant strains render the treatment of infections problematic and contribute to the spread of antimicrobial resistance. They are therefore of great public concern. This study determined the resistance pattern of coagulase-positive S. aureus (CPSA) isolated from nasal swabs of 100 slaughter pigs from one farm in Uruguay. Out of 69 animals, 71 CPSA were collected. Minimum inhibitory concentrations of 20 antimicrobials were determined using the broth microdilution method in accordance with CLSI recommendations. No methicillin-resistant S. aureus were detected. All CPSA were resistant to three or more classes of antimicrobials (i.e., multiresistant), whereby all CPSA were resistant to spectinomycin. Most of the isolates (46%) were resistant to six classes of antimicrobials. Almost all isolates were resistant to penicillin (99%), ampicillin (99%), gentamicin (96%), tetracycline (90%), and tilmicosin (87%). Very high resistance rates were observed against erythromycin (77%) and clindamycin (70%). High resistance was observed against tiamulin (40%), enrofloxacin (31%), and florfenicol (23%) and low resistance was observed against amoxicillin/clavulanic acid (4%). All CPSA isolates were mecA negative. The results of the present study could be related to an overuse of antimicrobials in pig production and should encourage veterinarians and pig holders to practice a controlled administration of chemotherapeutics in pig husbandry.