Oceanography of the Chilean Patagonia

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Pantoja, Silvio; Luis Iriarte, José; Daneri, Giovanni

2011-03-01

Chilean Patagonia is one of the most extended fjord regions in the world that covers nearly 240,000 km 2 with an extremely complex coastline and topography in one of the least densely populated areas of the country (1-8 inhabitants every 10 km 2). In recent years, the area has been undergoing somewhat intense pressure since several commercial projects in hydroelectricity, tourism, and commercial salmon and mytilid cultures have been developed, or are in progress. Concomitantly, several large research programs have been devised to study the physical, chemical, and biological environment of Patagonia, such as the CIMAR FIORDO, and recently COPAS Sur-Austral based at Universidad de Concepcion, that attempts to close the bridge between oceanographic knowledge and its use by society. In this introductory article we summarize the collection of papers comprising this Special Issue of Continental Shelf Research. These papers deal with aspects of regional oceanography and geology, inorganic and organic geochemistry, ecology of pelagic and benthic organisms, and past changes in productivity.

Patagonia, Land of Nomads: A Glance at a Territory Shaped by Displacement

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Pablo Chiuminatto

2016-05-01

Full Text Available By the end of the nineteenth century, as global voyages became popular, and transcontinental empires settled, remote corners of the third world such as Patagonia began to be explored and became the subject of European travel literatures. The opening of this region to the global scenario produced profound transformations in its territorial conformation, poetic imaginary, and local culture. As Patagonia became a land of travellers, local nomads which had inhabited this land for centuries became extinguished. The historical context of this re-shaping is conceptualised in literary theory through notions such as nomadism, elaborated by Gilles Deleuze and its aesthetical counterpart, geo-poetics, by Kenneth White. The travel literature about Patagonia, such as that produced by Charles Darwin, Lady Florence Dixie, and Bruce Chatwin, depicts the difficulties these travellers faced in trying to endow their writings of adequate descriptions and images. Instead, they recurred to images from their homeland, and thus created an imaginary of Patagonia through displacement: their own, and that of images brought by themselves to this land. When Chilean poets like Gabriela Mistral and Pablo Neruda begun to write about Patagonia, they found it already populated by strange images, shaped indeed, by nomads, travellers and dis-located identities.

Estado actual del conocimiento de la familia Ceratopogonidae en la Patagonia (Diptera: Nematocera Current knowledge of the family Ceratopogonidae in Patagonia (Diptera: Nematocera

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Gustavo R. Spinelli

2009-06-01

Full Text Available Ceratopogonidae incluye pequeños dípteros nematoceros que crían en hábitats acuáticos o semiacuáticos. Hasta los '80, el conocimiento de su taxonomía en la Patagonia se hallaba limitado a la contribución de los comienzos de los '30 de Ingram y Macfie, sobre la base de material capturado en 1926-27, en el área del Parque Nacional Nahuel Huapi y zonas vecinas de Chile. En los últimos 25 años, se pusieron en marcha diferentes proyectos, resultando la descripción o registro de numerosos taxones para la región. Si se contabilizan los datos publicados, 102 especies habitan en la Patagonia, de las cuales 86 (84,31% son endémicas para la región. Este alto porcentaje es evidente en los bosques de Nothofagus, con 71 especies endémicas de este bioma, nueve lo son de la estepa y seis presentan registros en bosque y estepa. Datos aún no publicados concuerdan con este esquema. Diecinueve géneros están representados en la Patagonia, diez de ellos con amplia distribución, tres de distribución transantártica y seis son endémicos para el área. Para la misma, se hallan publicadas las revisiones de Forcipomyia, Atrichopogon, Borkenthelea, Macrurohelea y Paradasyhelea; se han finalizado y aún no publicado aquellas de Dasyhelea y Palpomyia, está muy avanzada la de Stilobezzia y se prevé comenzar con las de Austrohelea, Austrosphaeromias, Physohelea y Bezzia. Se calcula que estos datos no divulgados contienen al menos 55 especies todavía no descriptas. Con respecto a los aspectos biogeográficos se pueden destacar estudios que tienden a establecer relaciones entre las áreas reconocidas en esquemas biogeográficos propuestos para la región andina.Ceratopogonidae includes small nematoceran Diptera which breed in aquatic and semiaquatic habitats. Until the 80´s its taxonomic knowledge in Patagonia was limited to the early 30´s contribution of Ingram and Macfie, from material collected in 1926-27 in the area of the Nahuel Huapi National

Geology and Conceptual Model of the Domuyo Geothermal Area, Patagonia, Argentina

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Fragoso, A. S.; Ferrari, L.; Norini, G.

2017-12-01

Cerro Domuyo is the highest mountain in Patagonia and its western slope is characterized by thermal springs with boiling fluids as well as silicic domes and pyroclastic deposits that suggest the existence of a geothermal reservoir. Early studies proposed that the thermal springs were fault-controlled and the reservoir was located in a graben bounded by E-W normal faults. A recent geochemical study estimated a temperature of 220ºC for the fluid reservoir and a thermal energy release of 1.1 GW, one of the world largest advective heat flux from a continental volcanic center. We carried out a geologic survey and U-Pb and U-Th geochronologic study to elaborate an updated conceptual model for the Domuyo geothermal area. Our study indicates that the Domuyo Volcanic Complex (DVC) is a dome complex overlying an older, Middle Miocene to Pliocene volcanic sequence widely exposed to the southwest and to the north, which in turn covers: 1) the Jurassice-Early Creteacoeus Neuquen marine sedimentary succession, 2) silicic ignimbrites dated at 186.7 Ma and, 3) the Paleozoic metamorphic basement intruded by 288 Ma granite bodies. These pre-Cenozoic successions are involved in dominantly N-S trending folds and thrust faults later displaced by E-W striking normal faults with a right lateral component of motion that underlie the DVC. The volcanic cycle forming the DVC is distinctly bimodal with the emplacement of massive silicic domes but also less voluminous olivine basalts on its southern slope. The central dome underwent a major collapse that produced 0.35 km3 of ash and block flow and associated pyroclastic flows that filled the valley to the southwest up to 30 km from the source. This was followed by a voluminous effusive activity that formed silicic domes dated between 254-322 Ky, which is inferred to overlain a partially molten silicic magma chamber. Integrating the geologic model with magnetotelluric and gravity surveys we developed a conceptual model of the geothermal system

The impact of Chilean migration on employment in Patagonia.

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Cariola Sanz, L

1989-06-01

This paper discusses the employment situation of Chilean migrant workers, their impact on labor markets in Patagonia, Argentina, and the government's past and projected responses to this phenomenon. In 1980, Chilean inhabitants of patagonia comprised 11% of the area's population. Chilean migration to patagonia was closely linked to economic activities that began to flourish in the 20th century, such as livestock raising, fruit and vegetable cultivation, and mining for coal and petroleum. No Chilean migrants work in a wide range of sectors. In Patagonia's southern provinces availability and ability to withstand rigorous climate conditions are the main factors which account for the prevalence of Chilean manpower. Chilean migrants do not in general displace local manpower. Legislation and the permeability of the border ensure that most workers enter the country as tourists. Clandestine migration is not an issue. Illegal migrants have provoked negative reactions for several reasons: 1) they comprise a marginal population without formal citizenship; 2) being employed as clandestine workers, they pay no social security, nor do their employers; 3) being illegal, they are obliged to accept lower wages and inferior working conditions which creates unfair competition within labor markets; and 4) as a result of these conditions, xenophobic and endophobic attitudes in relations with Argentine nationalists are reinforced. The government has attempted to solve these problems through various measures. Beginning in 1934, most foreigners entered Argentina with a tourist visa, becoming illegal when they stayed beyond authorized limits. Several measures over the years provided amnesty to illegal migrants. Currently, the law promotes immigration, monitors the admission of foreigners to the country and stipulates their rights and obligations. The law lists 115 articles on immigration promotion and on regulation of the movements of foreigners. Because of the present economic crisis in

Estado del conocimiento taxonómico de la fauna de Chironomidae (Diptera: Nematocera de la Patagonia Current state of the taxonomic knowledge of the Chironomidae fauna (Diptera: Nematocera from Patagonia

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Mariano Donato

2009-06-01

Full Text Available La familia Chironomidae (Diptera: Nematocera es uno de los grupos de insectos más ampliamente distribuidos y abundantes en cuerpos de agua dulce. Los representantes de esta familia pueden explotar áreas con amplios gradientes ambientales. La información que se presenta está basada en la recopilación de datos distribucionales bibliográficos, del estudio del material tipo de las especies de Chironomidae depositadas en el Natural History Museum (UK y del material de colección del Museo de La Plata (Argentina. En la Patagonia, se registran 9 subfamilias, la subfamilia monotípica Chilenomyiinae es endémica de esta área. Dentro de estas subfamilias, 53 de los 111 géneros conocidos para América del Sur están presentes en la Patagonia. Del total de géneros de la Patagonia, el 20 % es endémico y 7 de ellos muestran relaciones transantárticas. En la Patagonia, se registran 177 especies de Chironomidae, el 98% de éstas son endémicas, el 3 % son consideradas nomina dubia y el 17% requiere revisión ya que su ubicación sistemática es dudosa. Las descripciones originales de las especies patagónicas de Chironomidae están basadas principalmente sobre machos (n=58 y machos y hembras (n=43, ambas representan el 57% del total; el resto de las especies han sido descriptas con diferentes combinaciones de estadios del ciclo de desarrollo.The Chironomidae (Diptera: Nematocera family is one of the most widely distributed group of insects and often the most abundant in freshwater environments. Representatives of this family can exploit a wide range of environmental gradients. The information here presented is based on the compilation of distributional data obtained from bibliography, the study of the type material deposited in the Natural History Museum (UK and the collection material from Museo de La Plata (Argentina. Nine subfamilies are recorded from Patagonia, being the monotypic subfamily Chilenomyiinae endemic for the area. From the 111 known

Freshwater fishes of Patagonia: conservation and fisheries.

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Cussac, V E; Habit, E; Ciancio, J; Battini, M A; Riva Rossi, C; Barriga, J P; Baigún, C; Crichigno, S

2016-07-01

The absence of much literature on the Patagonian fish fauna in comparison with that of the neotropics, has previously been blamed on its poor species diversity. Knowledge of the fishes of Patagonia, however, rose sharply at the beginning of the present century, allowing for an understanding of the complex biogeographical history that has led to the present diversity and distribution patterns. There are several new and potential threats to biodiversity and conservation of Patagonian fishes, such as the introduction of exotic species, damming, climate change and changes geared to safeguard economic interests, often acting synergistically. A great amount of new information is now available and the aim of the present review is to articulate this knowledge in a comprehensive way in order to aid in the development of tools to face the increasing challenges posed by environmental change and human activity. Knowledge about fishes of Patagonia has grown at the same time as human actions, and presence. © 2016 The Fisheries Society of the British Isles.

Biometric identification of capillariid eggs from archaeological sites in Patagonia.

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Taglioretti, V; Fugassa, M H; Beltrame, M O; Sardella, N H

2014-06-01

Numerous eggs of capillariid nematodes have been found in coprolites from a wide range of hosts and in raptor pellets in archaeological samples from Patagonia. The structure and sculpture of the eggshell of these nematodes and their biometry are commonly used for identification. The aim of this study was to determine whether eggs of the genus Calodium with similar morphology, found in different archaeological samples from Patagonia, belong to the same species. For this purpose, capillariid eggs (N= 843) with thick walls and radial striations were studied by permutational multivariate analysis of variance (PERMANOVA). Eggs exhibiting similar shape and structure also showed similar biometry, regardless of the zoological origin of coprolites (P= 0.84), host diet (P= 0.19), character of the archaeological sites (P= 0.67) and chronology (P= 0.66). Thus, they were attributed to the same species. We suggest that an unidentified zoonotic species of the genus Calodium occurred in the digestive tract of a wide range of hosts in Patagonia during the Holocene and that both human and animal populations were exposed to this parasite during the Holocene in the study area.

A new burmagomphid dragonfly from the Eocene of Patagonia, Argentina

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Julián F. Petrulevičius

2017-11-01

Full Text Available A new burmagomphid anisopteran, Satelitala soberana gen. et sp. nov. is described from the lower Eocene of Laguna del Hunco, Patagonia, Argentina. The new genus is characterised by hindwing characters such as the subdiscoidal triangle not elongated; anal loop divided longitudinally; paranal cell divided longitudinally; five terminal cells between RP and MA; five terminal cells between MP and CuA; and obtuse angle between PsA and CuP+AA. Burmagomphid dragonflies were represented so far only by one specimen from the middle Cretaceous of Southeast Asia. This new record extends the distribution to Patagonia, to the Cenozoic, and also to paleolake deposits.

Ventajas competitivas: Una propuesta paso a paso de búsqueda y aplicación de cadena de valor adaptada a empresas aéreas. Caso Patagonia- Argentina

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María Alejandra Gazzera

2005-05-01

Full Text Available El desarrollo del proceso de búsqueda de ventajas competitivas de una empresa se puede plantear como un esfuerzo que se sigue en tres grandes líneas de actuación: la búsqueda centrada en la empresa, centrada en el entorno, y centrada en los competidores. Si bien la búsqueda de ventajas competitivas está estrechamente interrelacionada y vinculada entre las tres líneas, el presente trabajo se centrará en la primera de ellas, es decir al interior de la empresa, sin perder de vista la relación que tienen las empresas con su entorno o mercado, mediante la aplicación de la cadena de valor de Michael Porter (1985 adaptada a las empresas aéreas que operaban desde y hacia la ciudad de Neuquen, puerta de entrada a la Patagonia Argentina Es necesario destacar que no existen al presente, año 2005, estudios de este tipo en el sector mencionado en Argentina, pero en otros sectores productivos y aún en empresas aéreas de otros países, la cadena de valor ha demostrado su utilidad como tecnología de reflexión estratégica para generar valor en el cliente y para dirigir los esfuerzos de la empresa hacia la consolidación o creación de ventajas competitivas sostenibles en el tiempo.

Telón de fondo: Paisajes de desierto y alteridad en la fotografía de la Patagonia (1880-1900 Backdrop: Desert and Alterity Landscapes in the Photography of Patagonia (1880-1900

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Carlos Masotta

2009-12-01

Full Text Available El paisaje patagónico construido por la fotografía del período 1880-1900 fue un marco en donde se llevó a cabo el ingreso civilizatorio. Luego de una caracterización general del problema (el paisaje desierto como «escenificación de ausencia» en torno a los primeros álbumes de Estado sobre la región, centro el análisis de este artículo en dos obras que describieron el Territorio de Chubut: Viaje a la Patagonia Austral (1886 del Coronel Luis Fontana y la Excursión a la Patagonia y a los Andes de Aarón Anchorena (1902. Entre ellas puede observarse la articulación de una mirada militar y civil donde el paisaje fotográfico del desierto se involucra en la toma material y simbólica del territorio como un escenario donde se «naturaliza» la actuación de un ingreso civilizatorio y la desaparición de los pueblos indígenas.The Patagonian landscape built up by photography during the 1880-1900 periods was the framework in which the civilizing entrance took action. After a general description of the problem (the deserted landscape as the staging of absence about the first State's albums on the region, I focus the analysis on two works describing the Territory of Chubut: Viaje a la Patagonia Austral (Trip to Southern Patagonia by Coronel Luis Fontana (1886 and Excursion a la Patagonia y a los Andes (Tour to Patagonia and the Andes, de Aaron Anchorena (1902. The articulation of a military and civil glance can be observed between them, where the photographic landscape of the desert is involved in the material and symbolic shot of the territory as a stage where the acting of a civilizing entrance and the disappearance of the indigenous peoples is naturalized.

Geomorphological evidences of Quaternary tectonic activities in the Santa Cruz river valley, Patagonia, Argentina

International Nuclear Information System (INIS)

Massabie, A.; Sanguinetti, A.; Nestiero, O.

2007-01-01

From Argentin lake, at west on Andean hills, to Puerto Santa Cruz on Atlantic coast, Santa Cruz river cross eastward Santa Cruz province over 250 km in Patagonia at southern Argentina. Present bed of the river has a meandering outline with first order meanders of great ratio bends and second order meanders of minor ratio bends. Principal wanderings are 45 to 55 km spaced from near Estancia La Julia or Rio Bote at west to Comandante Luis Piedrabuena at east. On river's bed middle sector these great curvatures are located at Estancia Condor Cliff and Estancia Rincon Grande. Regional and partial detailed studies allow to recognize structural control on river's bed sketch and valley s geomorphology that relates first order bends with reactivated principal faults. These faults fit well with parallel system of northwest strike of Austral Basin.On geological, geomorphologic and structural evidences recognized in Santa Cruz river, quaternary tectonic activity, related to Andean movements in southern Patagonian foreland, is postulated. (author)

A new pentatomoid bug from the Ypresian of Patagonia, Argentina

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Julián F. Petrulevičius

2016-12-01

Full Text Available A new pentatomoid heteropteran, Chinchekoala qunita gen. et sp. nov. is described from the lower Eocene of Laguna del Hunco, Patagonia, Argentina. The new genus is mainly characterised by cephalic characters such as the mandibular plates surpassing the clypeus and touching each other in dorsal view; head wider than long; and remarkable characters related to the eyes, which are surrounded antero-laterally and posteriorly by the anteocular processes and the pronotum, as well as they extend medially more than usual in the Pentatomoidea. This is the first pentatomoid from the Ypresian of Patagonia and the second from the Eocene in the region, being the unique two fossil pentatomoids in Argentina.

Green marketing impact on a company’s success : studying the case of Patagonia

OpenAIRE

Ventura, Manuel Robles Machado Simões

2016-01-01

The increased demand for products with low environmental impact has increased the number of green marketing campaigns released during the last years. However, the impact of green marketing in companies’ performance is not clear. It mainly depends on the company’s characteristics and the perceived honesty of their green claims. Thus, the present study aimed to analyze the impact of green marketing in a particular company, Patagonia. Patagonia is recognized as a pioneer in corporate environment...

Airborne laser altimetry survey of Glaciar Tyndall, Patagonia

DEFF Research Database (Denmark)

Keller, K.; Casassa, G.; Rivera, A.

2007-01-01

The first airborne laser altimetry measurements of a glacier in South America are presented. Data were collected in November of 2001 over Glaciar Tyndall, Torres del Paine National Park, Chilean Patagonia, onboard a Twin Otter airplane of the Chilean Air Force. A laser scanner with a rotating...

Quantifying mass balance processes on the Southern Patagonia Icefield

DEFF Research Database (Denmark)

Schaefer, M.; Machguth, Horst; Falvey, M.

2015-01-01

We present surface mass balance simulations of the Southern Patagonia Icefield (SPI) driven by downscaled reanalysis data. The simulations were evaluated and interpreted using geodetic mass balances, measured point balances and a complete velocity field of the icefield for spring 2004. The high m...

A tale of three hydros - post-privatisation in Patagonia

International Nuclear Information System (INIS)

Smith, H.F.

1994-01-01

When Argentina's state-owned utility, operating in northern Patagonia, sold off hydro-electric generating plants in 1993, they were bought by several North American utility companies. This article looks at the problems these companies encountered and examines whether the enterprise has shown itself to be economically valuable. (UK)

UVR-induced photoinhibition of summer marine phytoplankton communities from Patagonia

NARCIS (Netherlands)

Villafane, Virginia E.; Janknegt, Paul J.; de Graaff, Marco; Visser, Ronald J. W.; de Poll, Willem H. van; Buma, Anita G. J.; Helbling, E. Walter

During austral summer 2006, experiments were carried out to evaluate the effects of ultraviolet radiation (UVR, 280-400 nm) on carbon fixation of natural phytoplankton assemblages from Patagonia (Argentina). Surface water samples were collected (ca. 100 m offshore) at mid morning using an

Variaciones glaciales durante el Holoceno en Patagonia Central, Aisén, Chile: evidencias geomorfológicas Holocene glacial variations in Central Patagonia, Aisén, Chile: geomorphological evidences

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María Mardones

2011-07-01

Full Text Available Durante el Holoceno, avances y retrocesos glaciares geomorfológicamente registrados caracterizan la Patagonia. Este artículo presenta la evolución geomorfológica y las evidencias de fluctuaciones glaciales holocénicas de una región patagónica, que servirán de referencia para el estudio de la evolución paleoclimática Postglacial del extremo sur de Sudamérica. El área de trabajo es la cuenca del río Blanco (45°30'S, en la Patagonia Central (Región de Aisén, Chile. Dataciones radiométricas de sedimentos orgánicos de morrenas terminales aportan antecedentes preliminares de dos avances glaciares: el primero, representado por la morrena frontal del lago Elizalde, arroja una edad inferior a 9.370±50 años 14C AP (10.700 a 10.480 cal. años AP, lo que cronológicamente ubica este evento glaciar en el Holoceno Temprano. Esta progresión del hielo es 100 a 200 años más antigua que aquella observada inmediatamente al sur del área de estudio, en el margen oriental del lago General Carrera (o lago Buenos Aires en Argentina y aproximadamente 100 años más joven, que la registrada en la morrena de Puerto Banderas I (lago Argentino, 50°S. Este resultado sugiere un patrón de comportamiento de los glaciares de Patagonia Central diferente a aquel observado por otros investigadores en la Región de Los Lagos (41°S y en la Región de Magallanes (54°S, donde no se registran huellas de reavances glaciares durante el Holoceno Temprano. Luego de un importante retroceso hacia el oeste, un reavance glaciar más reciente se habría producido en el valle del río Quetro (afluente del río Blanco, a una edad inferior a 2.250±40 AP (2.340 a 2.150 cal. años AP, comparable con el estadio frío del Neoglacial Medio, verificado en distintos puntos de la Patagonia. Confrontando estos resultados con registros palinológicos previamente publicados por otros autores, interpretamos que las causas de ambas fluctuaciones glaciales son variaciones regionales

New records of water mites (Acari: Hydrachnidia, Halacaroidea) from Patagonia (Chile)

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Pešić, V.; Smit, H.; Datry, T.

2010-01-01

New records of water mite species (Acari: Hydrachnidia, Halacaroidea) from Patagonia (Southern Chile) are reported. Four species, Anisitsiellides australis Smit, 2002, Peregrinacarus falklandensis Bartsch, 2001, Lobohalacarus weberi (Romijn & Viets, 1924) and Soldanellonyx monardi Walter, 1919 are

Difilobotriasis humana en la Patagonia, Argentina Human diphyllobothriasis in Patagonia, Argentina

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Liliana Semenas

1997-06-01

Full Text Available OBJETIVO: El objetivo del trabajo fué detectar hospedadores humanos en la zona andino patagónica argentina, teniendo en cuenta las prácticas de pesca desportiva y la importancia de los salmónidos dentro de la zona. MATERIAL Y METODO: Entre 1986 y 1995 se implementaron Campañas de Información en los laboratorios de Análisis Clínicos de la región andinopatagónica argentina, destinadas a lograr una detección más eficiente de la difilobotriasis, a través de análisis coproparasitológicos. RESULTADOS: Adicionalmente, se confeccionaron planillas destinadas a recoger información sobre las características de la infección, del tratamiento y del paciente. Durante este período se detectaron 13 nuevos casos humanos, por identificación directa del parásito o por la presencia de huevos en materia fecal. Las características de las infecciones responden a las descriptas para el género Diphyllobothrium. CONCLUSIONES: En la región, los salmónidos son los peces predilectos en la pesca deportiva. Estos peces, frecuentemente parasitados con larvas, constituyen la principal fuente de contagio para el hombre al ser consumidos insuficientemente cocidos o ahumados en frío.OBJECTIVE: In view of the amateur fishing practices and the importance of salmonids in the region the study sets out to detect human hosts in the Andean-Patagonian zone. MATERIAL AND METHOD: Information campaigns were carried out by Clinical Analysis Laboratories of Andean Patagonia between 1986 and 1995 to detect diphyllobothriasis more efficiently by means of coproparasitological analysis. RESULTS: Further, forms were prepared for the collection of information about infection, treatment and the characteristics of the human host. During this period 13 new cases were registered either through direct identification of the parasite or through the presence of eggs in the faeces. The characteristics of infection are similar to those described for the genus Diphyllobothrium

Ploidy levels and reproductive behaviour in invasive Hieracium pilosella in Patagonia

Czech Academy of Sciences Publication Activity Database

Krahulec, František; Krahulcová, Anna

2011-01-01

Roč. 11, - (2011), s. 25-31 ISSN 1619-0033 R&D Projects: GA ČR GA206/08/0890 Institutional research plan: CEZ:AV0Z60050516 Keywords : Patagonia * ploidy levels * hybridization Subject RIV: EF - Botanics

"Jejenes" (Diptera: Simuliidae of Nahuel Huapi National Park, Patagonia, Argentina: Preliminary results "Jejenes" (Diptera: Simuliidae del Parque Nacional Nahuel Huapi, Patagonia, Argentina: Resultados preliminares

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Luis M. Hernández

2009-06-01

Full Text Available The Simuliidae is a family of Diptera with approximately 2072 described species worldwide. The females of the majority of the species feed from vertebrates' blood, which makes them a significant plague that affects both men as well as cattle, birds, and other vertebrates. The objective of this paper is to create an inventory of Simuliidae and to reveal certain aspects of the biology and distribution of this family of aquatic insects in the Nahuel Huapi National Park. Moreover, information on the zoogeography of Simuliidae in Patagonia is provided. Five genera, 3 subgenera and 32 species Simuliidae are recorded from Patagonia: Cnesia (three spp., Cnesiamima (one sp., Gigantodax (14 spp., Paraustrosimulium (one sp., Simulium (Ectemnaspis (one sp., S. (Psaroniocompsa (one sp. and S. ( Pternaspatha (11 spp., At present, we have collected all five genera, one subgenus of Simulium (Pternaspatha, and 19 species of Simuliidae in the park, which amounts to 57% of the Simuliidae fauna in this area. Puerto Blest, a characteristic area of the High-Andean phytogeographical province (humid forest, showed the highest diversity of Simuliidae.Los simúlidos pertenecen a una familia de Diptera (Simuliidae con alrededor de 2.072 especies descritas a nivel mundial. Las hembras de la mayoría de las especies se alimentan con sangre de vertebrados, lo cual las convierte en importantes plagas que afectan tanto al hombre como al ganado, aves y otros vertebrados. Los objetivos de este trabajo son llevar a cabo un inventario de Simuliidae y dar a conocer algunos aspectos de la biología y la distribución de esta familia de insectos acuáticos en el Parque Nacional Nahuel Huapi, Argentina. Además, se proporciona información sobre la biogeografía de Simuliidae en la Patagonia. Cinco géneros, un subgénero y 32 especies de simúlidos han sido registrados para Patagonia: Cnesia (3 spp., Cnesiamima (1 sp., Gigantodax (14 spp., Paraustrosimulium (1 sp., Simulium

Late cretaceous aquatic plant world in Patagonia, Argentina.

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N Rubén Cúneo

Full Text Available In this contribution, we describe latest Cretaceous aquatic plant communities from the La Colonia Formation, Patagonia, Argentina, based on their taxonomic components and paleoecological attributes. The La Colonia Formation is a geological unit deposited during a Maastrichtian-Danian transgressive episode of the South Atlantic Ocean. This event resulted in the deposition of a series of fine-grained sediments associated with lagoon systems occurring along irregular coastal plains in northern Patagonia. These deposits preserved a diverse biota, including aquatic and terrestrial plants and animals. The aquatic macrophytes can be broadly divided into two groups: free-floating and rooted, the latter with emergent or floating leaves. Free-floating macrophytes include ferns in Salviniaceae (Azolla and Paleoazolla and a monocot (Araceae. Floating microphytes include green algae (Botryoccocus, Pediastrum and Zygnemataceae. Among the rooted components, marsileaceous water ferns (including Regnellidium and an extinct form and the eudicot angiosperm Nelumbo (Nelumbonaceae are the dominant groups. Terrestrial plants occurring in the vegetation surrounding the lagoons include monocots (palms and Typhaceae, ferns with affinities to Dicksoniaceae, conifers, and dicots. A reconstruction of the aquatic plant paleocommuniy is provided based on the distribution of the fossils along a freshwater horizon within the La Colonia Formation. This contribution constitutes the first reconstruction of a Cretaceous aquatic habitat for southern South America.

Late Cretaceous Aquatic Plant World in Patagonia, Argentina

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Cúneo, N. Rubén; Gandolfo, María A.; Zamaloa, María C.; Hermsen, Elizabeth

2014-01-01

In this contribution, we describe latest Cretaceous aquatic plant communities from the La Colonia Formation, Patagonia, Argentina, based on their taxonomic components and paleoecological attributes. The La Colonia Formation is a geological unit deposited during a Maastrichtian-Danian transgressive episode of the South Atlantic Ocean. This event resulted in the deposition of a series of fine-grained sediments associated with lagoon systems occurring along irregular coastal plains in northern Patagonia. These deposits preserved a diverse biota, including aquatic and terrestrial plants and animals. The aquatic macrophytes can be broadly divided into two groups: free-floating and rooted, the latter with emergent or floating leaves. Free-floating macrophytes include ferns in Salviniaceae (Azolla and Paleoazolla) and a monocot (Araceae). Floating microphytes include green algae (Botryoccocus, Pediastrum and Zygnemataceae). Among the rooted components, marsileaceous water ferns (including Regnellidium and an extinct form) and the eudicot angiosperm Nelumbo (Nelumbonaceae) are the dominant groups. Terrestrial plants occurring in the vegetation surrounding the lagoons include monocots (palms and Typhaceae), ferns with affinities to Dicksoniaceae, conifers, and dicots. A reconstruction of the aquatic plant paleocommuniy is provided based on the distribution of the fossils along a freshwater horizon within the La Colonia Formation. This contribution constitutes the first reconstruction of a Cretaceous aquatic habitat for southern South America. PMID:25148081

OSTEOMETRÍA DE VICUGNA VICUGNA MOLINA, 1782 EN EL PLEISTOCENO FINAL DE PATAGONIA MERIDIONAL CHILENA: IMPLICANCIAS PALEOECOLÓGICAS Y BIOGEOGRÁFICAS / Osteometry of Vicugna vicugna Molina, 1782 in the late Pleistocene of southern chilean Patagonia

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Rafael Labarca Encina

2009-12-01

Full Text Available  Se presenta un análisis osteométrico uni y multivariado con los materiales fósiles -principalmente huesos cortos y falanges- de Vicugna sp. del yacimiento Cueva Lago Sofía 4 (13500 – 11000 AP, ubicado en la provincia de Última Esperanza (Región de Magallanes, Chile. Los resultados indican que los elementos analizados poseen un tamaño compatible con los registrados para Vicugna vicugna, no superando en ningún caso a los especímenes conocidos para Vicugna gracilis del Pleistoceno de la región Pampeana. Esto confirma la información morfológica y de ADN antiguo que indicaba la presencia de Vicugna vicugna en la Patagonia meridional chilena. Se discuten los resultados en términos taxonómicos, biogeográficos y paleoecológicos sugiriendo que la presencia de este taxón fuera de su rango actual de distribución se debió a las condiciones ambientales compartidas entre la Puna y Patagonia austral durante la transición Pleistoceno-Holoceno. La extinción de V. vicugna se habría debido al impacto de los cambios climáticos ocurridos al inicio del Holoceno producto de su dieta pastadora y etología no migratoria y territorial, a lo que se habría sumado una caza por parte de depredadores humanos y no humanos.Palabras clave: género Vicugna, osteometría, Pleistoceno, Patagonia AbstractThis contribution presents the results of single and multi-variable osteometric analyses performed on a sample of short bones and phalanxes assigned to Vicugna sp. from Lago Sofía Cave 4 site (13500 – 11000 BP, Región de Magallanes, Chile. The elements analyzed show a similar size to the reference collections for Vicugna vicugna, and do not exceed the metrics for the pampean pleistocenic specimens of Vicugna gracilis. This confirms the morphological and ancient DNA data that indicated the presence of vicuña in southern Chilean Patagonia. The taxonomic, biogeographic and palaeoecologic discussion of these results, suggests that the presence of this

Aeolian sediment mass fluxes on a sandy soil in Central Patagonia

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Sterk, G.; Parigiani, J.; Cittadini, E.; Peters, P.; Scholberg, J.; Peri, P.

2012-01-01

The climate of Patagonia is semi-arid and characterised by frequent strong winds. Wind erosion is potentially a serious soil degradation process that impacts long-term sustainability of local agricultural systems, but the conditions and the rates of wind erosion in this region have not been

Latest Pleistocene and Holocene Glacier Fluctuations in southernmost Patagonia

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Menounos, B.; Maurer, M.; Clague, J. J.; osborn, G.; Ponce, F.; Davis, P. T.; Rabassa, J.; Coronato, A.; Marr, R.

2011-12-01

Summer insolation has been proposed to explain long-term glacier fluctuations during the Holocene. If correct, the record of glacier fluctuations at high latitudes in the Southern Hemisphere should differ from that in the Northern Hemisphere. Testing this insolation hypothesis has been hampered by dating uncertainties of many Holocene glacier chronologies from Patagonia. We report on our ongoing research aimed at developing a regional glacier chronology at the southern end of the Andes north and west of Ushuaia, Argentina. We have found evidence for an advance of cirque glaciers at the end of the Pleistocene; one or locally two closely spaced moraines extend up to 2 km beyond Little Ice Age moraines. Radiocarbon dating of terrestrial macrofossils recovered from basal sediments behind two of these moraines yielded ages of 10,320 ± 25 and 10,330 ± 30 14C yr BP. These moraines may record glacier advances coeval with the Antarctic Cold Reversal; surface exposure dating of these moraines is currently in progress to test this hypothesis. We find no evidence of Holocene moraines older than 6800 14C yr BP, based on the distribution of Hudson tephra of that age. At some sites, there is evidence for an early Neoglacial advance of glaciers slightly beyond (Peru. We have documented multiple wood mats with stumps in growth position separated by till units in a 100 m section of the northeast lateral moraine at Stoppani Glacier (54.78 S, 68.98 W), 50 km west of Ushuaia. Ten radiocarbon ages on these wood mats range in age from 3510 ± 15 to 135 ± 15 14C yr BP. The mats decrease in age up-section; many overlap with published age ranges for Neoglacial advances in western Canada. Taken together, these data: a) do not support the summer insolation hypothesis for Holocene glacier fluctuations in southernmost Patagonia; b) confirm paleobotanical evidence for a warm, dry early Holocene; and c) suggest that many Neoglacial advances in southernmost Patagonia and western North America

Fe-Ni Micrometorites from Upper Jurassic Cañadon Asfalto Fm., Patagonia, Argentina

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Matteini, M.; Hauser, N.; Cabaleri, N.; Silva Nieto, D.; Cuadros, F. A.; Reyes, S.

2014-09-01

Microspherules from an upper Jurassic sediments from Patagonia, show mineralogical, geochemical and textural features very similar to those reported for I-type micrometeorites whereas some spherules are interpreted as typical G-type micrometeorites.

Geochronologic evidence of a large magmatic province in northern Patagonia encompassing the Permian-Triassic boundary

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Luppo, Tomás; López de Luchi, Mónica G.; Rapalini, Augusto E.; Martínez Dopico, Carmen I.; Fanning, Christopher M.

2018-03-01

The Los Menucos Complex (northern Patagonia) consists of ∼6 km thick succession of acidic and intermediate volcanic and pyroclastic products, which has been traditionally assigned to the Middle/Late Triassic. New U/Pb (SHRIMP) zircon crystallization ages of 257 ± 2 Ma at the base, 252 ± 2 Ma at an intermediate level and 248 ± 2 Ma near the top of the sequence, indicate that this volcanic event took place in about 10 Ma around the Permian-Triassic boundary. This volcanism can now be considered as the effusive terms of the neighboring and coeval La Esperanza Plutono-Volcanic Complex. This indicates that the climax of activity of a large magmatic province in northern Patagonia was coetaneous with the end-Permian mass extinctions. Likely correlation of La Esperanza- Los Menucos magmatic province with similar volcanic and plutonic rocks across other areas of northern Patagonia suggest a much larger extension than previously envisaged for this event. Its age, large volume and explosive nature suggest that the previously ignored potential role that this volcanism might have played in climatic deterioration around the Permian-Triassic boundary should be investigated.

Genomic insights into the origin and diversification of late maritime hunter-gatherers from the Chilean Patagonia.

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de la Fuente, Constanza; Ávila-Arcos, María C; Galimany, Jacqueline; Carpenter, Meredith L; Homburger, Julian R; Blanco, Alejandro; Contreras, Paloma; Cruz Dávalos, Diana; Reyes, Omar; San Roman, Manuel; Moreno-Estrada, Andrés; Campos, Paula F; Eng, Celeste; Huntsman, Scott; Burchard, Esteban G; Malaspinas, Anna-Sapfo; Bustamante, Carlos D; Willerslev, Eske; Llop, Elena; Verdugo, Ricardo A; Moraga, Mauricio

2018-04-24

Patagonia was the last region of the Americas reached by humans who entered the continent from Siberia ∼15,000-20,000 y ago. Despite recent genomic approaches to reconstruct the continental evolutionary history, regional characterization of ancient and modern genomes remains understudied. Exploring the genomic diversity within Patagonia is not just a valuable strategy to gain a better understanding of the history and diversification of human populations in the southernmost tip of the Americas, but it would also improve the representation of Native American diversity in global databases of human variation. Here, we present genome data from four modern populations from Central Southern Chile and Patagonia ( n = 61) and four ancient maritime individuals from Patagonia (∼1,000 y old). Both the modern and ancient individuals studied in this work have a greater genetic affinity with other modern Native Americans than to any non-American population, showing within South America a clear structure between major geographical regions. Native Patagonian Kawéskar and Yámana showed the highest genetic affinity with the ancient individuals, indicating genetic continuity in the region during the past 1,000 y before present, together with an important agreement between the ethnic affiliation and historical distribution of both groups. Lastly, the ancient maritime individuals were genetically equidistant to a ∼200-y-old terrestrial hunter-gatherer from Tierra del Fuego, which supports a model with an initial separation of a common ancestral group to both maritime populations from a terrestrial population, with a later diversification of the maritime groups.

Estado del conocimiento taxonómico de la fauna de Chironomidae (Diptera: Nematocera de la Patagonia

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Mariano DONATO

2009-01-01

Full Text Available La familia Chironomidae (Diptera: Nematocera es uno de los grupos de insectos más ampliamente distribuidos y abundantes en cuerpos de agua dulce. Los representantes de esta familia pueden explotar áreas con amplios gradientes ambientales. La información que se presenta está basada en la recopilación de datos distribucionales bibliográficos, del estudio del material tipo de las especies de Chironomidae depositadas en el Natural History Museum (UK y del material de colección del Museo de La Plata (Argentina. En la Patagonia, se registran 9 subfamilias, la subfamilia monotípica Chilenomyiinae es endémica de esta área. Dentro de estas subfamilias, 53 de los 111 géneros conocidos para América del Sur están presentes en la Patagonia. Del total de géneros de la Patagonia, el 20 % es endémico y 7 de ellos muestran relaciones transantárticas. En la Patagonia, se registran 177 especies de Chironomidae, el 98% de éstas son endémicas, el 3 % son consideradas nomina dubia y el 17% requiere revisión ya que su ubicación sistemática es dudosa. Las descripciones originales de las especies patagónicas de Chironomidae están basadas principalmente sobre machos (n=58 y machos y hembras (n=43, ambas representan el 57% del total; el resto de las especies han sido descriptas con diferentes combinaciones de estadios del ciclo de desarrollo.

La proyección colonial de Chile a la Patagonia Insular en el siglo XVIII

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Urbina Carrasco, María Ximena

2011-12-01

Full Text Available In this article, the geopolitical consequences of the shipwreck of the English frigate Wager and the landfall of the ship Anna into the coasts of the Western Insular Patagonia in 1741 are presented, which were part of the fleet of George Anson. The news reporting the English presence in the deserted and unknown insular and coastal territory southernmost Chiloé, and which had disseminated towards the end of the continent, promoted the deployment of different actions tending to make presence noted, such as military and missionary expeditions, fort establishment and area patrols. None of the latter implied a permanent settlement or effective incorporation of such border, although they indeed involved the creation of a «mobile frontier» for Chiloé and the development of a Western Patagonia image.

Este artículo presenta las consecuencias geopolíticas del naufragio de la fragata inglesa Wager y la recalada de otro barco, el Anna, que formaban parte de la flota de George Anson, en las costas de la Patagonia Occidental Insular en 1741. La noticia de la presencia inglesa en el despoblado y desconocido territorio insular y bordemarino al sur de Chiloé, y que se proyectaba al fin del continente, generó el despliegue de acciones tendentes a marcar presencia, como expediciones militares y misionales, la fundación de un fuerte y el patrullaje por la zona. Nada de esto se tradujo en un asentamiento permanente o incorporación efectiva de dicha frontera, pero si en la conformación de una «frontera móvil» de Chiloé, y la construcción de una imagen de la Patagonia Occidental.

Modulation of Fire Regimes by Vegetation and Site Type in Southwestern Patagonia Since 13 ka

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Patricio I. Moreno

2018-04-01

Full Text Available The degree to which vegetation and site type have influenced fire regimes through the Holocene has not been investigated in detail in the temperate ecosystems of southern Patagonia. Here we present a first attempt using a paired-basin approach to study the evolution of fire regimes in sectors dominated by humid Nothofagus forests and the xeric Patagonian steppe in the Magallanes region of Chilean Patagonia (51°S. We analyzed sediment cores from two small lakes and a bog located within the same climate zone on opposite sides of the forest-steppe ecotone, ~28 km apart. The position of this biological boundary east of the Andes is controlled by the strength and position of the southern westerly winds, which constitute the sole source of precipitation throughout western Patagonia. Our results indicate that fires have occurred in the study region repeated times over the last ~13,000 years at bi- and tridecadal timescales. Sectors currently dominated by Patagonian steppe feature high frequency and low magnitude of local fires, and vice versa in humid forests. Climate-driven expansion of Nothofagus scrubland/woodland into steppe environments over the last ~4,200 years increased the magnitude and lowered the frequency of fire events, culminating with peak Nothofagus abundance, fire magnitude and frequency during the last millennium. We also detect divergences between lake-based vs. bog-based paleofire histories among paired sites located within the Patagonian steppe, ~12 km apart, which we attribute to local burning of the bog at times of lowered water table. This divergence suggests to us that bog-based vegetation and fire histories exacerbate a local, azonal, signal blurring extra-local or regional regimes, thus accounting for some discrepancies in the Quaternary paleovegetation/paleoclimate literature of southern Patagonia.

The Usefulness of Edible and Medicinal Fabaceae in Argentine and Chilean Patagonia: Environmental Availability and Other Sources of Supply

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Molares, Soledad; Ladio, Ana

2011-01-01

Fabaceae is of great ethnobotanical importance in indigenous and urban communities throughout the world. This work presents a revision of the use of Fabaceae as a food and/or medicinal resource in Argentine-Chilean Patagonia. It is based on a bibliographical analysis of 27 ethnobotanical sources and catalogues of regional flora. Approximately 234 wild species grow in Patagonia, mainly (60%) in arid environments, whilst the remainder belong to Sub-Antarctic forest. It was found that 12.8% (30 ...

Peronism and political citizenship in the Patagonia: the look of the magazine Argentina Austral (1946-1955)

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Ruffini, Martha

2015-01-01

Desde 1929, y durante casi cuarenta años, en la Patagonia circuló la revista Argentina Austral. Esta continuidad fue facilitada por el sello original de la publicación que era propiedad de la empresa ganadera, comercial y naviera más importante del sur argentino: la Sociedad Anónima Importadora y Exportadora de la Patagonia, dirigida por la familia Braun-Menéndez Behety. La revista asumió una postura de demanda de ampliación de los derechos políticos de los habitantes del sur mientras expresa...

Eastern Andean environmental and climate synthesis for the last 2000 years BP from terrestrial pollen and charcoal records of Patagonia

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Sottile, G. D.; Echeverria, M. E.; Mancini, M. V.; Bianchi, M. M.; Marcos, M. A.; Bamonte, F. P.

2015-06-01

The Southern Hemisphere Westerly Winds (SWW) constitute an important zonal circulation system that dominates the dynamics of Southern Hemisphere mid-latitude climate. Little is known about climatic changes in the Southern South America in comparison to the Northern Hemisphere due to the low density of proxy records, and adequate chronology and sampling resolution to address environmental changes of the last 2000 years. Since 2009, new pollen and charcoal records from bog and lakes in northern and southern Patagonia at the east side of the Andes have been published with an adequate calibration of pollen assemblages related to modern vegetation and ecological behaviour. In this work we improve the chronological control of some eastern Andean previously published sequences and integrate pollen and charcoal dataset available east of the Andes to interpret possible environmental and SWW variability at centennial time scales. Through the analysis of modern and past hydric balance dynamics we compare these scenarios with other western Andean SWW sensitive proxy records for the last 2000 years. Due to the distinct precipitation regimes that exist between Northern (40-45° S) and Southern Patagonia (48-52° S) pollen sites locations, shifts on latitudinal and strength of the SWW results in large changes on hydric availability on forest and steppe communities. Therefore, we can interpret fossil pollen dataset as changes on paleohydric balance at every single site by the construction of paleohydric indices and comparison to charcoal records during the last 2000 cal yrs BP. Our composite pollen-based Northern and Southern Patagonia indices can be interpreted as changes in latitudinal variation and intensity of the SWW respectively. Dataset integration suggest poleward SWW between 2000 and 750 cal yrs BP and northward-weaker SWW during the Little Ice Age (750-200 cal yrs BP). These SWW variations are synchronous to Patagonian fire activity major shifts. We found an in phase

Formas terminales de Hippidion (Mammalia, Perissodactyla de los yacimientos del Pleistoceno Tardio-Holoceno de la Patagonia (Argentina y Chile

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Prado, J. L.

1987-04-01

Full Text Available The present study is a revision of the terminal forms of the South-American horses coming from the archeological sites of Patagonia. They are compared with those from the Northwest of Argentine. The study also includes paleoenvironmental and cronological related aspects.El presente estudio comprende una revisión de las formas terminales de caballos sudamericanos recuperados de sitios arqueológicos de la Patagonia. Se comparan con las formas del noroeste argentino. Incluye aspectos paleoambientales y cronológicos relacionados.

Trace elements deposition in the Tierra del Fuego region (south Patagonia) by using lichen transplants after the Puyehue-Cordón Caulle (north Patagonia) volcanic eruption in 2011.

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Conti, Marcelo Enrique; Jasan, Raquel; Finoia, Maria Grazia; Iavicoli, Ivo; Plá, Rita

2016-04-01

Lichen Usnea barbata transplants were tested as a biomonitor of atmospheric deposition in an apparently pristine environment that is Tierra del Fuego region (Patagonia, Argentina). The present survey is connected with the volcanic eruption that started in north Patagonia on June 4, 2011 from the Puyehue-Cordón Caulle volcano, Chile (north Patagonia, at 1700 km of distance of our sampling sites). Lichens were collected in September 2011 (one month of exposure) and September 2012 (1 year of exposure) in 27 sites covering the northern region of the province where trees are not present. The atmospheric deposition of 27 elements by using Neutron Activation Analysis (NAA) was determined in the collected samples. The first aim of the study was to evaluate the influence of the volcanic eruption on the regional atmospheric deposition comparing our results with baseline data we determined in U. barbata in 2006 in the same sites. The second aim was to test possible patterns of bioaccumulation between the two sampling campaigns after the volcanic eruption. With respect to 2006 baseline levels, we found significant higher levels for As, Ba, Co, Cr, Cs, Na, Sb and U in lichens collected after 1 month of exposure (first sampling campaign--2011). Between the two sampling campaigns (2011-2012) after the eruption, lichens reflected the natural contamination by volcanic ashes with significantly higher median levels of Br, Cr, Fe, K, Na, Sc, and Se. Results confirmed the very good aptitude of U. barbata to reflect the levels of elements in the environment at global scale and to reflect the volcanic emissions at distant places. Volcanic eruptions cause the emission in the atmosphere of elevated levels of particulate matter. In this regard, our findings demonstrate the importance to evaluate the metal composition of the particles to avoid possible health effects.

Insectos acuáticos de la Meseta del Somuncura, Patagonia, Argentina. Inventario preliminar Aquatic insects from Somuncura plateau, Patagonia, Argentina. Preliminary inventory

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Javier Muzón

2005-12-01

Full Text Available RESUMEN. Se brinda un inventario preliminar de los insectos acuáticos de la Meseta del Somuncura y su área de influencia (Patagonia, Argentina realizado sobre la base de colecciones y registros previos de especies pertenecientes a los órdenes Ephemeroptera, Odonata, Hemiptera (Heteroptera, Trichoptera, Diptera (familias Ceratopogonidae, Culicidae y Psychodidae y Coleoptera. Se han relevado diversos tipos de ambientes en 14 localidades. El número de especies registrado asciende a 78, agrupadas en 51 géneros y 26 familias, de las cuales 33 se citan por primera vez del área. De los taxa registrados 83% de los géneros corresponden a grupos de amplia distribución (neotropicales, americanos o cosmopolitas, mientras que 41% de las especies presentan una distribución patagónica o andina.ABSTRACT. A preliminary inventory of the aquatic insects from the Somuncura plateau and its area of influence (Patagonia, Argentina is presented. It was done on the basis of the study of collections and previous records of species belonging to the orders Ephemeroptera, Odonata, Hemiptera (Heteroptera, Trichoptera, Diptera (families Ceratopogonidae, Culicidae, and Psychodidae and Coleoptera. Different kinds of environments were surveyed in 14 localities. Seventy eigth species grouped in 51 genera and 26 families were registered, and 33 species are new records for the area. Eighty three % of the registered genera are widely distributed (neotropical, american or cosmopolitan, while 41 % of the species exhibit patagonic or andean distribution.

Distribución geográfica, historia natural y conservación del hurón menor Galictis cuja (Carnivora: Mustelidae en la Patagonia central, Argentina Geographic distribution, natural history and conservation of the lesser grison Galictis cuja (Carnivora: Mustelidae from Central Patagonia, Argentina

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Marcelo Carrera

2012-12-01

Full Text Available El hurón menor, Galictis cuja, tiene una amplia distribución en el territorio patagónico extraandino, aunque sus registros puntuales son escasos. Este trabajo se desarrolló en la provincia del Chubut, Patagonia Central, Argentina. Aquí se aportan nuevas localidades de registro de G. cuja para esta región; se discuten aspectos de su distribución geográfica y conservación en el Área Natural Protegida Península Valdés (ANP-PV; Patrimonio Natural de la Humanidad y brevemente se explora la representación de G. cuja en los ensambles de carnívoros del ANP-PV desde el Holoceno tardío hasta la actualidad. Se adicionaron 18 nuevos registros de G. cuja en Patagonia central. Se detectó un conflicto entre los pobladores y hurones, que motiva la caza de estos últimos. Se verificó un aparente incremento de abundancia de G. cuja en los últimos miles de años, concomitante con la extinción regional o dramática disminución de Lyncodon patagonicus (Carnivora, Mustelidae.The Lesser Grison, Galictis cuja, is a species widely distributed in extra-Andean Patagonia, although its records are scarce. This work was carried out in Chubut province, Central Patagonia, Argentina. Here we report new occurrence localities of G. cuja for this region; we discuss aspects of their geographical distribution and conservation in the Área Natural Protegida Península Valdés (ANP-PV; World Heritage Site and briefly explores the representation of G. cuja in carnivore assemblages of ANP-PV, since the late Holocene to the present. We added 18 new records of G. cuja in Central Patagonia. We detected a conflict between the rural residents and the Lesser Grison, which motivates the hunting of the latter. There was an apparent increase in abundance of G. cuja in the last thousands of years, concomitant with regional extinction or dramatic reduction of Lyncodon patagonicus (Carnivora, Mustelidae.

Flavonols, alkaloids, and antioxidant capacity of edible wild berberis species from patagonia.

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Ruiz, Antonieta; Zapata, Moises; Sabando, Constanza; Bustamante, Luis; von Baer, Dietrich; Vergara, Carola; Mardones, Claudia

2014-12-24

There are 20 species of the Berberidaceae family described in Chile, whose fruits are edible and show high anthocyanin and hydroxycinnamic acid levels. Berberis microphylla G. Forst, commonly known as calafate, is the most extensively distributed. Flavonols and alkaloids in seed, pulp, skin, and whole calafate berry extracts and other Berberis were studied using HPLC-DAD-ESI-MS/MS and HPLC with fluorescence detector. Berry samples from different locations in Chilean Patagonia, including different phenological stages, were systematically addressed. Results were compared with other organs of the plant and with other Berberis species. Total flavonol concentration in calafate (n = 65) was 1.33 ± 0.54 μmol/g. Glycosyl metabolites of quercetin and isorhamnetin were the most abundant. Similar profiles were observed in calafate from distinct locations, but important differences were observed for the other edible Berberis species. Calafate pulp and skin have higher flavonol concentrations than seeds, and the maturation process reduced its levels. TEACCUPRAC and TEACABTS of whole calafate extracts and fractions are also explored. Finally, only berberine was detected in the fruit (0.001%), mainly in seeds. Results contribute to the promotion of this berry as a superfruit from Patagonia.

Little Ice Age advance and retreat of Glaciar Jorge Montt, Chilean Patagonia

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A. Rivera

2012-03-01

Full Text Available Glaciar Jorge Montt (48°20' S/73°30' W, one of the main tidewater glaciers of the Southern Patagonian Icefield (SPI, has experienced the greatest terminal retreat observed in Patagonia during the past century, with a recession of 19.5 km between 1898 and 2011. This retreat has revealed trees laying subglacially until 2003. These trees were dated using radiocarbon, yielding burial ages between 460 and 250 cal yrs BP. The presence of old growth forest during those dates indicates that Glaciar Jorge Montt was upvalley of its present position before the commonly recognized Little Ice Age (LIA period in Patagonia. The post-LIA retreat was most likely triggered by climatically induced changes during the 20th century; however, Glaciar Jorge Montt has responded more dramatically than its neighbours. The retreat of Jorge Montt opened a 19.5 km long fjord since 1898, which reaches depths in excess of 390 m. The bathymetry is well correlated with glacier retreat rates, suggesting that dynamic responses of the glacier are at least partially connected to near buoyancy conditions at the ice front, resulting in high calving fluxes, accelerating thinning rates and rapid ice velocities.

Chondrichthyans of the San Matías Gulf, Patagonia, Argentina Los condrictios del Golfo San Matías, Patagonia, Argentina

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María R PERIER

2011-12-01

Full Text Available The San Matías Gulf (SMG; 41°- 42° S; 64°- 65° W is the largest gulf in Northern Patagonia, Argentina. Up to date, the chondrichthyan fauna of this area has not been reported. Therefore, the aim of this work is to provide a list with species presence and biological characteristics of the chondrichthyans recorded in SMG during the last 30 years. A total of 13 sharks distributed in 11 families, 19 skates and rays distributed in six families, and one holocephalan have been so far recorded in SMG. From the zoogeographical point of view, this chondrichthyan fauna is a mixed assemblage of species typically found in the Argentinean and Magellanean Provinces. The holocephalan Callorhinchus callorynchus is the most landed chondricthyan of the local fishery. With it, five sharks and seven skates are also exploited.El Golfo San Matías (SMG; 41°- 42° S - 64°-65° O se encuentra ubicado en el norte de la Patagonia, Argentina. Hasta la fecha no se cuentan con reportes de la fauna de condrictios de esta zona. Por lo tanto, el objetivo de este trabajo es proporcionar una lista de la presencia y las características biológicas de los condrictios registrados en el SMG durante los últimos 30 años. Un total de 13 tiburones distribuidos en 11 familias, 19 batoideos distribuidos en seis familias y un holocefalo han sido reportados para la zona. Desde el punto de vista zoogeográfico, el SMG presenta un ensamble de especies pertenecientes a las Provincias Magallánica y Argentina. El holocefalo Callorhinchus callorynchus es el condrictio más desembarcado de la pesquería local. Con menor importancia son explotadas comercialmente, cinco especies de tiburones y siete de rayas.

The uranium potential of the continental Cretaceous of Patagonia

International Nuclear Information System (INIS)

Olsen, H.; Berizzo, J.

1980-01-01

The geological features of the fluvial sedimentation of the Cretaceous of Patagonia - the Grupo Chubut Formation in the provinces of Chubut and Santa Cruz, underlined this environment as one of high favourability for discovering uranium deposits. The area has been explored by the CNEA who found two outstanding levels of fluvial sediments that are today the target of further studies to find new deposits. The general geological features are given, together with the results of the exploration up to date, distribution of radiometric anomalies, deposits discovered and an estimation of the uraniferous potential of the Formation. (author)

Sedimentary paleoenvironments of the Candeleros Formation(Rio Limay Subgroup)upper cretaceous, Ezequiel Ramos Mexia, Neuquen, Argentina daming west, Argentina

International Nuclear Information System (INIS)

Sanchez, M.

2004-01-01

Sedimentary facies from the Candeleros Formation (Rio Limay Subgroup), cropping out at the El Escondido creek, at the Ezequiel Ramos Mexia dam, are analyzed and interpreted in this paper. A sedimentological detailed section was measured to get the main goal of this paper which is the sedimentary paleoenvironment. The outcroppings were pictured and a section was measured, geometries and espacial relation between them were analyzed. Eight lithofacies were identified which are: coarse sandstone facies (Se), sandstones (Sm, St, Sp, Sh t Sr), siltstones and shales (Fl and Fr). These lithofacies were agrupated into eight facies associations (FA). AFA constitutes the registration of multiepisodic events of sheet floods; AFB, C and D are product of the depositation in a braided channel belt, AFE represents units of lateral accretion, AFF is assigned deposits of crevasse splay and AFG and H are assigned to plain of flood. The distribution of these associations in the column defines an terminal fan paleoenvironment where is represented of base to top: distal (AFA, B and G) and proximal area (AFD and G) of the distributary plain; zone of feeding of the system (AFC, And, F and G), media-proximal distributary plain (AFD and F), proximal distributary plain (AFC, And, F and G); and flood basin (AFF, G and H) [es

Climate and sea-level changes across a shallow marine Cretaceous–Palaeogene boundary succession in Patagonia, Argentina

NARCIS (Netherlands)

Vellekoop, Johan; Holwerda, Femke; Prámparo, Mercedes B.; Willmott, Veronica; Schouten, Stefan; Cúneo, Nestor R.; Scasso, Roberto A.; Brinkhuis, Henk

2017-01-01

Upper Maastrichtian to lower Paleocene, coarse-grained deposits of the Lefipán Formation in Chubut Province, (Patagonia, Argentina) provide an opportunity to study environmental changes across the Cretaceous–Palaeogene (K–Pg) boundary in a shallow marine depositional environment. Marine

Do coastal fronts influence bioerosion patterns along Patagonia? Late Quaternary ichnological tools from Golfo San Jorge

Science.gov (United States)

Richiano, Sebastián; Aguirre, Marina; Castellanos, Ignacio; Davies, Karen; Farinati, Ester

2017-12-01

Late Quaternary marine molluscan skeletal concentrations from Argentina constitute a remarkable record of variations in palaeoceanographical conditions during interglacial times (mainly ca. 125 ka to present). Particularly, the Golfo San Jorge coastal area represents an extraordinary geographical zone to target from different points of view, mainly due to its linkage between northern and southern Patagonia, characterized by particular and contrasting physico-chemical conditions with direct consequences for littoral marine communities, determining their composition and structure. Among varied biological activities controlled by different environmental factors (i.e., substrate nature, sedimentation rates, water depth, sea surface temperature, salinity, nutrients-productivity), bioerosion traces can provide palaeoenvironmental evidence with important implications for palaeoclimate interpretations. In addition, the application of bioerosion patterns regionally and through time is a recent valuable worthy palaeoenvironmental tool not as yet developed for Patagonia. We attempted to characterize, qualitatively/semiquantitatively, the ichnotaxonomic composition of the coastal area of northern Golfo San Jorge since the Late Pleistocene; to compare results with those obtained for other geographical areas along Patagonia and the Bonaerensian coastal sectors; lastly, to evaluate its palaeoenvironmental/palaeoclimatic significance in a clue area in terms of circulation patterns near the Southern Ocean climatic pump. At Bustamante (Northern Patagonia Frontal System) Domichnia traces were dominant during the Late Pleistocene while Praedichnia in the mid-Holocene. Bustamante exhibits the highest ichnodiversity for the whole Argentinean coastal area. Ichnodiversity is not strongly different between Late Pleistocene and mid-Holocene interglacials and compared to present; however, the relative abundance of some ichnotaxa (e.g., Oichnus, Iramena, Pennatichnus, at Camarones; Oichnus

El ciclo inmobiliario: La experiencia argentina y el caso de las provincias de Neuquén y Río Negro

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Ernesto Bilder

1997-12-01

Full Text Available Abstract This work presents data examining the effect that the economic cycles have on the building industry. The article has three sections: The first looks into the relationship between the real estate market fluctuations and the stock market. The second examines the building industry in Argentina as influenced by the plan de convertibilidad, with its 1994-1995 economic recession. The third analyzes she housing conditions in the southern provinces of Neuquen and Rio Negro and their effects on the quality of life

Un suelo referible al periodo calido medieval en Patagonia Austral y Tierra del Fuego (Argentina. Aspectos cronologicos y paleoclimaticos

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Favier Dubois, C. M.

2002-08-01

Full Text Available Geoarchaeological work done in Southernmost Patagonia and in the north of Tierra del Fuego, have revealed the recurrent presence of a paedogenesis interval represented by a soil of an A-AC-C profile, with a mollic epipedon, in the upper section of eolian and colluvial deposits of the late Holocene. This soil is today buried in the sites that have been analyzed, while it remains exposed in other areas of the landscape. Radiocarbon dates obtained on materials placed below it (maximum ages and those obtained by OCR (Oxidizable Carbon Ratio in the AC horizon of this soil (minimum ages, indicate the beginning of its development around the year 1000 BP. Its chronology and environmental implications suggest a relationship with the medieval climatic fluctuations called Medieval Warm Period or Medieval Optimum in Europe. This period has correlates detected in Patagonia by dendroclimatic studies.Estudios geoarqueológicos realizados en 5 localidades de Patagonia austral y norte Tierra del Fuego han revelado la recurrente presencia de un suelo de perfil A-AC-C, de epipedon mólico, en depósitos eólicos y coluviales del Holoceno tardío. Este suelo se observa sepultado en los yacimientos arqueológicos analizados, mientras que permanece expuesto en otras posiciones del paisaje. Numerosas edades máximas y mínimas obtenidas por 14C y por la técnica de OCR (Oxidizable Carbon Ratio indican el comienzo de su desarrollo hacia el 1000 AP. Su cronología e implicancias ambientales permiten vincularlo con fluctuaciones climáticas desarrolladas durante el denominado Período Cálido Medieval u Optimo Medieval Europeo, con correlatos detectados en Patagonia a través de estudios dendroclimáticos.

Variability of Soil Types in Wetland Meadows in the South of the Chilean Patagonia Variabilidad de Tipos de Suelos en Las Vegas del Sur de la Patagonia Chilena

OpenAIRE

Ladislava Filipová; Radim Hédl; Nilo Covacevich C.

2010-01-01

The wetland meadows and pastures (vegas) of the agricultural zone of the Magallanes Region and the Chilean Patagonia are productive and intensively exploited ecosystems. However, there is scarce data about the typology and the physical and chemical properties of the soils that determine the agricultural potential of vegas sites. Sampling of the main horizons of 47 soil profiles was conducted throughout the area. The profiles were described in the field and consequently classified according to...

The Usefulness of Edible and Medicinal Fabaceae in Argentine and Chilean Patagonia: Environmental Availability and Other Sources of Supply

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Soledad Molares

2012-01-01

Full Text Available Fabaceae is of great ethnobotanical importance in indigenous and urban communities throughout the world. This work presents a revision of the use of Fabaceae as a food and/or medicinal resource in Argentine-Chilean Patagonia. It is based on a bibliographical analysis of 27 ethnobotanical sources and catalogues of regional flora. Approximately 234 wild species grow in Patagonia, mainly (60% in arid environments, whilst the remainder belong to Sub-Antarctic forest. It was found that 12.8% (30 species, mainly woody, conspicuous plants, are collected for food or medicines. Most of the species used grow in arid environments. Cultivation and purchase/barter enrich the Fabaceae offer, bringing it up to a total of 63 species. The richness of native and exotic species, and the existence of multiple strategies for obtaining these plants, indicates hybridization of knowledge and practices. Only 22% of the total species used are mentioned in bothcontexts of food and medicine, reflecting low-use complementation. This study suggests a significant ecological appearance and a high level of availability in shops and exchange networks in Patagonia, highlighting the need to consider the full set of environmental and socioeconomic factors in research related to the use and cultural importance of plants in regional contexts.

The Usefulness of Edible and Medicinal Fabaceae in Argentine and Chilean Patagonia: Environmental Availability and Other Sources of Supply

Science.gov (United States)

Molares, Soledad; Ladio, Ana

2012-01-01

Fabaceae is of great ethnobotanical importance in indigenous and urban communities throughout the world. This work presents a revision of the use of Fabaceae as a food and/or medicinal resource in Argentine-Chilean Patagonia. It is based on a bibliographical analysis of 27 ethnobotanical sources and catalogues of regional flora. Approximately 234 wild species grow in Patagonia, mainly (60%) in arid environments, whilst the remainder belong to Sub-Antarctic forest. It was found that 12.8% (30 species), mainly woody, conspicuous plants, are collected for food or medicines. Most of the species used grow in arid environments. Cultivation and purchase/barter enrich the Fabaceae offer, bringing it up to a total of 63 species. The richness of native and exotic species, and the existence of multiple strategies for obtaining these plants, indicates hybridization of knowledge and practices. Only 22% of the total species used are mentioned in bothcontexts of food and medicine, reflecting low-use complementation. This study suggests a significant ecological appearance and a high level of availability in shops and exchange networks in Patagonia, highlighting the need to consider the full set of environmental and socioeconomic factors in research related to the use and cultural importance of plants in regional contexts. PMID:22194774

Estado actual del conocimiento de la familia Ceratopogonidae en la Patagonia (Diptera: Nematocera

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Gustavo R. SPINELLI

2009-01-01

Full Text Available Ceratopogonidae incluye pequeños dípteros nematocerosque crían en hábitats acuáticos o semiacuáticos. Hasta los ‘80, el conocimiento de su taxonomía en la Patagonia se hallaba limitado a la contribución de los comienzos de los ‘30 de Ingram y Macfie, sobre la base de material capturado en 1926-27, en el área del Parque Nacional Nahuel Huapi y zonas vecinasde Chile. En los últimos 25 años, se pusieron en marcha diferentes proyectos, resultando la descripción o registro de numerosos taxones para la región. Si se contabilizan los datos publicados, 102 especies habitan en la Patagonia, de las cuales 86 (84,31% son endémicas para la región. Este alto porcentaje es evidente en los bosques de Nothofagus, con 71 especies endémicas de estebioma, nueve lo son de la estepa y seis presentan registros en bosque y estepa. Datos aún no publicados concuerdan con este esquema. Diecinueve géneros están representados en la Patagonia, diez de ellos con amplia distribución,tres de distribución transantártica y seis son endémicos para el área. Para la misma, se hallan publicadas las revisiones de Forcipomyia, Atrichopogon, Borkenthelea, Macrurohelea y Paradasyhelea; se han finalizado y aún no publicado aquellas de Dasyhelea y Palpomyia, está muy avanzada la de Stilobezzia y se prevé comenzar con las de Austrohelea, Austrosphaeromias, Physohelea y Bezzia. Se calcula que estos datos no divulgados contienen al menos 55 especies todavía no descriptas. Con respecto a los aspectos biogeográficos se pueden destacar estudios que tienden a establecer relaciones entre las áreas reconocidas en esquemas biogeográficos propuestos para la región andina.

Pasado y presente del uso de plantas silvestres con órganos subterráneos de almacenamiento comestibles en la Patagonia

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Juan J. Ochoa

2011-07-01

Full Text Available El presente trabajo es la primara aproximación acerca del papel de las plantas con órganos de almacenamiento subterráneos comestibles (POAS en la Patagonia, desde una perspectiva temporal y espacial, al integrar datos etnohistóricos y etnográficos actuales ligados al uso de las POAS. El 75 % de las 54 fuentes analizadas mencionan el uso de POAS en la alimentación humana de la Patagonia. Las POAS silvestres comestibles registradas ascienden a 51 especies, siendo mayor el conjunto de POAS con raíces comestibles. La estepa y zonas ecotonales resultaron las de mayor riqueza de POAS, probablemente vinculado a adaptaciones ecológicas de éstas a la aridez en el primer caso, como a la alta diversidad relativa que presentan los ecotonos, en el segundo. El registro etnohistórico mostró discontinuidades marcadas, siendo pocas las especies presentes por más de un siglo, destacándose la continuidad documental de A. tuberosa desde el siglo XVIII al presente, así como la incorporación reciente de especies exóticas. Las fuentes etnohistóricas revisadas y su contraste con datos etnobotánicos recientes de campo sugieren dinamismo en los patrones de utilización, que a lo largo del tiempo han llevado al abandono del uso de las POAS en la práctica alimentaria de la Patagonia. Las singularidades encontradas respecto a lo temporal y espacial pueden vincularse tanto a los conocimientos locales y específicos desarrollados a lo largo del tiempo por los habitantes de la Patagonia, como también a las circunstancias sociopolíticas y académicas de cada una de las fuentes analizadas.

Hydroclimatic conditions trigger record harmful algal bloom in western Patagonia (summer 2016)

OpenAIRE

León-Muñoz, Jorge; Urbina, Mauricio A.; Garreaud, René; Iriarte, José Luis

2018-01-01

A harmful algal bloom (HAB) of the raphidophyta alga Pseudochattonella cf. verruculosa during the 2016 austral summer (February-March) killed nearly 12% of the Chilean salmon production, causing the worst mass mortality of fish and shellfish ever recorded in the coastal waters of western Patagonia. The HAB coincided with a strong El Niño event and the positive phase of the Southern Annular Mode that altered the atmospheric circulation in southern South America and the adjacent Pacific Ocean. ...

Mineralogical association in the zone of argillic advanced alteration in a kaolin deposit of Patagonia Argentina

International Nuclear Information System (INIS)

Rainoldi, A; Oviedo, P.; Maiza, P.; Marfil, S.

2010-01-01

This work is about the mineralogical and petrological relations of the para genetic association of advanced argillic zone in the kaolin deposit in Patagonia.This study allowed to establish the sequence of events that took place in the deposit as well as the conditions under which they were generated

First paleoparasitological study of micromammal coprolites from the holocene of the Somuncurá Plateau Protected Natural Area (Patagonia Argentina).

Science.gov (United States)

Beltrame, María Ornela; Bellusci, Agustín; Andrade, Analía

2018-02-27

The Somuncurá Plateau is a Protected Natural Area located in the middle of the northern extra-Andean arid Patagonia. Inhabited by at least 20 small mammal species, is the place with the uppermost species richness in Patagonia. The aim of this study was to examine the parasite remains from micromammal coprolites collected in association with a bone sequence recovered at the east of the Somuncurá Plateau (site "Alero Las Lechuzas"). Coprolites came from the four temporal units previously defined: unit I (4790 ± 100 yrs. 14 C B.P.), unit II, unit III (7840 ± 120 yrs. 14 C B.P.) and unit IV. Each coprolite was processed, rehydrated, homogenized, processed by spontaneous sedimentation and examined using a light microscope. Coprolites and eggs were described, measured and photographed. Samples were positive for two nematode species: Helminthoxys caudatus Freitas, Lent & Almeida, 1937 (Oxyurida, Oxyuridae) and Trichuris spp. (Trichinellida: Trichuridae). This is the first paleoparasitological study developed for the Somuncurá Plateau Protected Area. Moreover, this is the first time that the genus Helminthoxys is reported from ancient times worldwide. Coprolites were attributed to the mountain cavy Microcavia australis (Rodentia, Caviidae).The presence of H. caudatus for the Middle Holocene of northern Patagonia contributes to the study of the history of the histricomorphs and pinworms relationships. Copyright © 2018 Elsevier B.V. All rights reserved.

Mio-Pliocene glaciations of Central Patagonia: New evidence and tectonic implications Glaciaciones mio-pliocenas en Patagonia central: nueva evidencia e implicancias tectónicas

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Yves Lagabrielle

2010-07-01

Full Text Available Patagonia is well known for spectacular oceurrences of a variety of glacial-derived landforms and deposits and for a long history of ancient glaciations. In this paper, we first review the diverse evidence that demonstrates the development of glacial-related sedimentary units within the Central Patagonian Cordillera since 7 Ma. Well preserved glacial landforms at the top surface of mesetas on both sides of the Lago General Carrera-Buenos Aires are described: the Meseta Guenguel to the north, and the volcanic Meseta del Lago Buenos Aires to the south. The latter meseta corresponds to a 3 Ma old, morphologically inverted paleo-piedmont, based on Ar/Ar dates of the uppermost lava flows. It shows evidence of glacier advances to the NE direction. Over a distance of 20 km, glacial landforms observed by remote sensing data and digital elevation model define glacial tongues that were fed by the Cordillera reliefs to the west. These lobes are now beheaded from their westward sources along a morpho-structural corridor that bounds the Meseta del Lago Buenos Aires to the west. These remnants can be correlated with the oldest glacial landforms recognized north of Lago General Carrera-Buenos Aires, on the Meseta Guenguel that form the Chipanque moraine system. From these features it is concluded that the glacial drainage network of Central Patagonia has been strongly modified following relief inversion in response to erosion processes and to tectonic causes. Changes occurred after 3 Ma, from a smooth piedmont surface covered by an extensive ice mantle ending with ampie glacial lobes, to the current series of deeply incised glacial valleys such as the Lago General Carrera-Buenos Aires depression. These new data bear important con-straints on the history and development of the first glaciations in southern South America.Patagonia es bien conocida por una espectacular geomorfología glacial y por una larga historia de antiguas glaciaciones. En este art

Investigación sobre manejo forestal a largo plazo en Patagonia Sur -Argentina: Lecciones del pasado, desafíos del presente Long-term forest management research in South Patagonia - Argentina: Lessons from the past, challenges from the present

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GUILLERMO J MARTÍNEZ-PASTUR

2010-03-01

Full Text Available Argentina ha basado su economía en la agricultura y el ganado, donde el bosque ha sido visto como un obstáculo para el desarrollo. La cosecha forestal en Patagonia Sur ha sido una actividad basada en la colonización y explotación de nuevas áreas. Esta se realiza principalmente en bosques primarios sin ningún manejo silvícola posterior. A pesar de que el manejo actual no es sustentable, la investigación científica ha definido las bases para conservar, proteger y mejorar las propuestas de manejo forestal para los bosques nativos de Patagonia Sur. Las primeras parcelas de estudio a largo plazo (1965-1966 basaron su monitoreo en parámetros económicos y estructura forestal, estableciéndose cerca de veinte parcelas en bosques fiscales de Tierra del Fuego. La mayoría fueron destruidas o discontinuadas debido a la falta de planificación del uso de la tierra, escaso interés social en la investigación, falta de compromiso de instituciones, y poca colaboración con empresas forestales. Posteriormente, un segundo grupo de nueve parcelas se estableció en Patagonia Sur (1993-2004 basado en la colaboración entre empresas privadas e instituciones nacionales. Los objetivos incluyeron parámetros económicos y ecológicos. Las parcelas se establecieron en tierras privadas conjuntamente con empresas privadas y estancieros, mediante la firma de acuerdos y proyectos de investigación. Los principales problemas encontrados fueron: falta de compromiso de las administraciones forestales, ausencia de proyectos financiados a largo plazo, y que la responsabilidad de las parcelas continúa bajo la iniciativa personal de los investigadores participantes. El estudio de las parcelas permitió: (i proponer nuevos sistemas de regeneración basados en la maximización del rendimiento y el mejoramiento del valor de conservación de los bosques manejados (e.g., retención variable y sistemas silvopastoriles, (ii determinar la factibilidad económica de aplicaci

Inter-subjectivity and Domestication in the Making of a Global Region: Territorialization of Salmon in the Chilean Patagonia.

NARCIS (Netherlands)

Blanco, Gustavo; Arce, A.M.G.; Fisher, E.F.

2016-01-01

This article examines transformations in the Chilean Patagonia, a region that has become a world leader in Salmon production for global markets. Employing ethnographic methods, this study examines the possibilities of considering inter-subjectivities in the processes of conforming important regions

Glaciers in Patagonia: Controversy and prospects

Science.gov (United States)

Kargel, J. S.; Alho, P.; Buytaert, W.; Célleri, R.; Cogley, J. G.; Dussaillant, A.; Guido, Z.; Haeberli, W.; Harrison, S.; Leonard, G.; Maxwell, A.; Meier, C.; Poveda, G.; Reid, B.; Reynolds, J.; Rodríguez, C. A. Portocarrero; Romero, H.; Schneider, J.

2012-05-01

Lately, glaciers have been subjects of unceasing controversy. Current debate about planned hydroelectric facilities—a US7- to 10-billion megaproject—in a pristine glacierized area of Patagonia, Chile [Romero Toledo et al., 2009; Vince, 2010], has raised anew the matter of how glaciologists and global change experts can contribute their knowledge to civic debates on important issues. There has been greater respect for science in this controversy than in some previous debates over projects that pertain to glaciers, although valid economic motivations again could trump science and drive a solution to the energy supply problem before the associated safety and environmental problems are understood. The connection between glaciers and climate change—both anthropogenic and natural—is fundamental to glaciology and to glaciers' practical importance for water and hydropower resources, agriculture, tourism, mining, natural hazards, ecosystem conservation, and sea level [Buytaert et al., 2010; Glasser et al., 2011]. The conflict between conservation and development can be sharper in glacierized regions than almost anywhere else. Glaciers occur in spectacular natural landscapes, but they also supply prodigious exploitable meltwater.

Caracterización de un proceso de biorremediación de hidrocarburos en deficiencia de nitrógeno en un suelo de la Patagonia Argentina

OpenAIRE

Acuña, Adrián Javier; Pucci Ceima, Oscar Héctor; Pucci Bissetta, Graciela Natalia

2008-01-01

La zona central de la Patagonia, Argentina, se encuentra sometida a explotación petrolera y sus suelos se caracterizan por ser deficientes en nitrógeno. Esto causaría un efecto negativo en los procesos de atenuación natural que se desarrollan en los suelos contaminados con hidrocarburos. El objeto de este estudio fue determinar cual es el efecto de la deficiencia de nitrógeno sobre la biodegradación de los hidrocarburos en un suelo de la Patagonia, Argentina. Se trabajó con tres micr...

[Outbreak of histoplasmosis in province of Neuquén, Patagonia Argentina].

Science.gov (United States)

Calanni, Liliana María; Pérez, Rufina Ana; Brasili, Susana; Schmidt, Norma Graciela; Iovannitti, Cristina Adela; Zuiani, María Fernanda; Negroni, Ricardo; Finquelievich, Jorge; Canteros, Cristina Elena

2013-01-01

In Argentina, there are no reports of autochthonous cases of histoplasmosis in the southern regions of the country. To report a histoplasmosis outbreak in Zapala town, Province of Neuquén, Patagonia Argentina. We evaluated the clinical and epidemiological characteristics of 5 patients involved in the outbreak. Environmental studies were conducted to determine the source of infection. The genetic profile of Histoplasma capsulatum strains isolated from the index case (IC) were compared with clinical isolates from Argentinean patients not related to the outbreak, using RAPD-PCR with primers 1281-1283. The patients were residents of Zapala, and had not visited other geographical areas before. All patients had an influenza-like syndrome, and X-ray revealed disseminated micronodular images throughout the lung parenchyma. The IC needed specific antifungal therapy; the remaining 4 patients had mild symptoms, and did not require therapy. All of them had a good clinical outcome. Strains of H. capsulatum isolated from blood culture and lung biopsy of the IC showed a genetic profile different from other strains analyzed. The presence of the fungus in the environment was demonstrated by the detection of anti-Histoplasma antibodies in BALB/c mice inoculated with soil obtained in a culvert where workers had dug up earth after a landslide. This outbreak suggests the histoplasmosis endemic area is under the 38° S parallel. Patients from Neuquén, Patagonia Argentina, with compatible symptoms of histoplasmosis should be tested, regardless of their travel or exposure history. Copyright © 2012 Revista Iberoamericana de Micología. Published by Elsevier Espana. All rights reserved.

Respiratory function in voluntary participating Patagonia sea lions in sternal recumbency

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Andreas Fahlman

2016-11-01

Full Text Available We measured esophageal pressures (n=4, respiratory flow rates (n=5, and expired O2 and CO2 (n=4 in five adult Patagonia sea lions (Otaria flavescens, body mass range 94.3-286.0 kg during voluntary breaths while laying down. The data were used to estimate the dynamic specific lung compliance (sCL, cmH2O-1, the O2 consumption rate (VO2 and CO2 production rates (VCO2 during rest. Our results indicate that the resting tidal volume in Patagonia sea lions is approximately 47-73% of the estimated total lung capacity. The esophageal pressures indicated that expiration is passive during voluntary breaths. The average sCL of dolphins was 0.41±0.11 cmH2O−1, which is similar to those measured in anesthetized sea lions and awake cetaceans, and significantly higher as compared with humans (0.08 cmH2O−1. The average estimated and using breath-by-breath respirometry were 1.023 ± 0.327 L O2 min-1 (range: 0.695-1.514 L O2 min−1 and 0.777 ± 0.318 L CO2 min-1, (range: 0.510-1.235 L CO2 min-1, respectively, which is similar to previously published metabolic measurements from California and Steller sea lions using conventional flow-through respirometry. Our data provide end-tidal gas composition and provide novel data for respiratory physiology in pinnpeds, which may be important for clinical medicine and conservation efforts.

Characterization of leveling problems of Patagonia gamma-ray spectrometry survey, Chubut province (Argentina)

International Nuclear Information System (INIS)

Ford, Kenneth L.; Lopez, Luis E.

1998-01-01

Measuring the radioelement concentrations of the soils along traverses perpendicular to the flight line direction was performed in order to gather useful information in support of the leveling of the airborne gamma-ray spectrometer survey of Patagonia. Two sites were selected as test areas which ground and airborne spectrometric data were systematically compared to asses the nature of the leveling problems. It is suspected that variations in soil moisture may play a significant roll in the leveling variations. (author)

Nacionalismo territorialista en textos escolares: representaciones de la Patagonia en la dictadura militar argentina (1966-1983 Territorialist nationalism in school textbooks: representations of Patagonia in Argentinian military dictatorship (1966-1983

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Jesús Jaramillo

2012-03-01

Full Text Available Los textos escolares desde hace tiempo se han constituido en una de las fuentes primarias para el campo de la Historia de la Educación en tanto son instrumentos de socialización formal básica. Sea considerado registro escrito editorial, herramienta didáctica o registro de memoria escolar, los textos escolares instituyen - y, en ocasiones, eternizan - concepciones e intereses reflejados en sus contenidos "oficiales". Investigaciones recientes en la búsqueda de la realidad escolar han enfatizado la importancia de los mismos en la construcción de las identidades nacionales, pero también de las identidades de grupos socio-culturales, socio-étnicos y regionales. Este artículo, a partir de una indagación historiográfica sobre libros de lectura, intenta reconstruir las diferentes tramas discursivas textuales e iconográficas en que ha sido representada la Patagonia durante los periodos dictatoriales argentinos 1966-1973 y 1976-1983, en escuelas primarias de Río Negro y Neuquén. En principio, puede advertirse un conjunto de relatos de la Patagonia y sus habitantes sobre la base de tres núcleos de sentido: el de territorio indígena, desierto e inculto; el de promisión para el progreso y el turismo; y el de soberanía nacional. A través de sus argumentos daremos cuenta que los libros escolares de edición nacional con rasgos eminentemente políticos pero también étnicos y raciales fueron medios de formación y, sobre todo, dispositivos que coadyuvaron a la conformación de una línea ideológica, política y pedagógica propia del nacionalismo católico militar.School textbooks have long been taken as one of the primary sources for the field of the History of Education, since they are instruments of basic formal socializing. Either as editorial written records, as didactic tools, or as records of school memory, school textbooks institute - and sometimes crystallize - conceptions and interests reflected in their "official" contents

Episodic Jurassic to Lower Cretaceous intraplate compression in Central Patagonia during Gondwana breakup

Science.gov (United States)

Navarrete, César; Gianni, Guido; Echaurren, Andrés; Kingler, Federico Lince; Folguera, Andrés

2016-12-01

From Lower Jurassic to Lower Cretaceous, several intraplate compression events affected discrete sectors of Central Patagonia, under a general context of crustal extension associated with Gondwana breakup. This was demonstrated by means of 2D and 3D seismic and borehole data, which show partial inversion of Lower and Middle Jurassic extensional structures of the Chubut and Cañadón Asfalto basins, during the earliest stages of breakup. A comparison with surrounding areas in Patagonia, where similar Jurassic intraplate compression was described, allowed the discrimination of three discrete pulses of subtle compression (C1: ∼188-185 Ma; C2: ∼170-163; C3: ∼157-136? Ma). Interestingly, episodic intraplate compressional events are closely followed by high flux magmatic events linked to the westward expansion of the Karoo-Ferrar thermal anomaly, which impacted on the lithosphere of southwest Gondwana in Lower Jurassic. In addition, we determined the approximate direction of the main compressive strain (σ1) compatible with other Jurassic intraplate belts of South America. These observations led us to propose a linkage between a thermo mechanically weakened continental crust due to LIPs activity, changes in plate motions and ridge-push forces generated by the opening of the Weddell Sea, in order to explain intraplate shortening, interrupted while Karoo LIPs magmatic invigoration took place.

Evaluation of an indirect elisa for the diagnosis of bovine brucellosis in Patagonia, Argentina

International Nuclear Information System (INIS)

Uzal, F.A.; Carrasco, E.A.; Robles, C.A.; Echaide, S.

1998-01-01

Control and eradication of bovine brucellosis is usually based on the serological detection of antibodies. In Argentina, the Rose Bengal test (RB) and the Buffered Plate antigen test (BPA) are the two screening test officially recognized, while the 2-mercaptoethanol test (2ME) and the Tube Agglutination test (SAT) are the confirmatory assays currently in use. In order to improve the serological diagnosis of bovine brucellosis in Patagonia, Argentina, an indirect ELISA kit produced by the Joint FAO/IAEA Division was evaluated. Sera from negative non-vaccinated, negative but vaccinated and positive animals were tested by all the above techniques. The specificity of the I-ELISA (99.6% and 99.7%) was similar to that of the BPA, RB, 2ME and Complement Fixation test (CF) when used to test sera from non-vaccinated, negative and vaccinated, negative animals, respectively. The sensitivity of the I-ELISA (98%) was higher than the BPA test (96%) and the CF test (95,2%). The I-ELISA kit evaluated in this study was thought to be a valuable tool for the diagnosis of bovine brucellosis in Patagonia region where little epidemiological information is available about this disease and where large numbers of sera should be tested to obtain such information. (author)

Rainforest conifers of Eocene Patagonia: attached cones and foliage of the extant Southeast Asian and Australasian genus Dacrycarpus (Podocarpaceae).

Science.gov (United States)

Wilf, Peter

2012-03-01

Eocene caldera-lake beds at Laguna del Hunco (LH, ca. 52.2 Ma) and Río Pichileufú (RP, ca. 47.7 Ma) in Argentine Patagonia provide copious information about the biological history of Gondwana. Several plant genera from these sites are known as fossils from southern Australia and New Zealand and survive only in Australasian rainforests. The potential presence of Dacrycarpus (Podocarpaceae) holds considerable interest due to its extensive foliage-fossil record in Gondwana, its remarkably broad modern distribution in Southeast Asian and Australasian rainforests, its high physiological moisture requirements, and its bird-dispersed seeds. However, the unique seed cones that firmly diagnose Dacrycarpus were not previously known from the fossil record. I describe and interpret fertile (LH) and vegetative (LH and RP) material of Dacrycarpus and present a nomenclatural revision for fossil Dacrycarpus from South America. Dacrycarpus puertae sp. nov. is the first fossil occurrence of the unusual seed cones that typify living Dacrycarpus, attached to characteristic foliage, and of attached Dacrycarpus pollen cones and foliage. Dacrycarpus puertae is indistinguishable from living D. imbricatus (montane, Burma to Fiji). Dacrycarpus chilensis (Engelhardt) comb. nov. is proposed for Eocene vegetative material from Chile. Modern-aspect Dacrycarpus was present in Eocene Patagonia, demonstrating an astonishingly wide-ranging paleogeographic history and implying a long evolutionary association with bird dispersers. Dacrycarpus puertae provides the first significant Asian link for Eocene Patagonian floras, strengthens the biogeographic connections from Patagonia to Australasia across Antarctica during the warm Eocene, and indicates high-rainfall paleoenvironments.

Cerro Bombero: registro de Hippidion saldiasi Roth, 1899 (Equidae, Perissodactyla en el Holoceno temprano de Patagonia (Santa Cruz, Argentina

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Alberdi, M. T.

2008-06-01

Full Text Available A new record of Hippidion saldiasi with new radiocarbon data referred to early Holocene (8,850 ± 80 year C-14 B.P of Patagonia is reported. Both its peculiar geographic location in a scarcely prospected zone and its radiocarbon age, provide new elements to discuss the previous hypotheses about the extinction of the horses and its relations with the human beings that inhabited the different environments of South America.Presentamos un nuevo registro de Hippidion saldiasi con datación radiocarbónica directa correspondiente al Holoceno temprano de Patagonia (8.850 ± 80 años C-14 AP. Su particular ubicación temporal y geográfica en una zona poco estudiada hasta ahora y su registro reciente, aportan nuevos elementos para discutir las hipótesis previas sobre la extinción de los caballos y su relación con los grupos humanos que colonizaron los diferentes ambientes de América del Sur.

Soñar con el futuro. Proyectos inmigratorios para la Patagonia argentina en Teodoro Alemann y Roberto J. Payró

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Jennifer M. Valko

2014-06-01

Taking into account recent studies on journalistic travel and Argentine nation building, this article examines the profile of a type of reporter that has been studied to a lesser degree, the immigrant journalist. It analyzes two travel chronicles about Patagonia published in Buenos Aires in 1898: Ein Ausflug nach dem Chubut-Territorium [An Excursion to the Chubut Territory] by Swiss journalist Theodor Alemann, published in the German-language newspaper Argentinisches Tageblatt [Argentine Daily], and La australia argentina, by Roberto J. Payró which appeared in La Nación. In both chronicles the narration of the trip to Patagonia is interrupted at a key moment by the telling of a dream regarding the future of the region. This essay demonstrates that these oneiric digressions reveal political and economic interests contrary to the official Argentine plans for the development of the region, the role of immigrants and their relationship with European powers.

Conflictos ecoterritoriales transfronterizos y megaproyectos extractivistas en cuencas compartidas de la Patagonia; Conflitos ecoterritoriais transfronteiriços e megaprojetos extrativistas nas bacias da Patagônia; Cross-border Eco-territorial Conflicts and Extractivist Megaprojects in the Patagonia River Basins

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Bárbara Jerez Henríquez

2015-01-01

Full Text Available Resumen: Las cuencas transfronterizas de la Patagonia Andina argentino- chilena en los útimos 15 años se ha convertido en un espacio transnacional en el que aterrizan megaproyectos de minería y represas hidroeléctricas que conllevan importantes impactos en los ecosistemas, economías y culturas locales, como parte de una tendencia en América Latina orientada al avance de las territorialidades extractivistas hacia zonas fronterizas que además significa transgredir marcos legales previos para el manejo de cuencas compartidas. En ese contexto emergen fuertes procesos de resistencia desde diversas narrativas que en su conjunto reivindican otras territorialidades en estas cuencas abarcando escalas locales y transfronterizas que plantean nuevos debates y desafíos para discutir los conflictos ecoterritoriales que emergen en zonas de fronteras.     Palabras clave: extractivismo, cuencas, fronteras, territorialidades, Patagonia.       Resumo: As bacias transfronteiriças da Patagônia Andina Argentino-chilena nos últimos 15 anos se converteram em um espaço transnacional em que aterrissam mega-projetos de mineração e represas hidroelétricas que conduzem importantes impactos nos ecossistemas, economias e culturas locais, como parte de uma tendência na América Latina de avanço das territorialidades extrativistas em direção a zonas fronteiriças que, além de tudo, significam transgredir marcos legais para o manejo de bacias divididas. Nesse       contextos emergem fortes processos de resistência desde diversas narrativas que em seu conjunto reivindicam outras territorialidades nestas bacias cobrindo escalas locais e transfronteiriças que colocam novos debates e desafios para se discutir os conflitos ecoterritoriais que emergem nas zonas de fronteira.     Palavras-chave: extrativismo, bacias, fronteiras, territorialidade, Patagônia.       Abstract: The cross-border river basins of the Argentine-Chilean Andean Patagonia have

De Patagonia a Budapest: caminos europeos de fósiles santacrucenses (1845-1956)

OpenAIRE

Vizcaíno, Sergio Fabián; Bargo, M. Susana

2013-01-01

A fines del siglo XIX y principios del XX, acicateados por los descubrimientos de los hermanos Ameghino, los paleontólogos evolucionistas de América del Norte y Europa posaron sus ojos en los mamíferos fósiles de Patagonia. Mientras los primeros organizaron expediciones, los europeos se valieron mayormente de otras formas comunes en la época para hacer colecciones de historia natural, como el intercambio y la compra. En el viejo continente, el devenir de los fósiles patagónicos no escapó a la...

Especies forestales promisorias para la diversificación de forestaciones en la Patagonia Argentina

OpenAIRE

Godoy, María Marcela; Defossé, Guillermo E; Thren, Martin

2007-01-01

En el oeste de la Patagonia argentina existen aproximadamente 70 mil hectáreas forestadas, de las cuales el 80% corresponde a Pinus ponderosa y el resto a Pseudotsuga menziesii y Pinus contorta. Con el objetivo de evitar esta tendencia hacia los monocultivos con sus consecuencias ecológicas y sanitarias desfavorables, surge la necesidad de evaluar la posibilidad de cultivar otras especies forestales que permitan la diversificación de las actuales forestaciones. En este trabajo se analizaron p...

A 17-year Record of Meteorological Observations Across the Gran Campo Nevado Ice Cap in Southern Patagonia, Chile, Related to Synoptic Weather Types and Climate Modes

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Stephanie S. Weidemann

2018-05-01

Full Text Available The network of long-term meteorological observations in Southernmost Patagonia is still sparse but crucial to improve our understanding of climatic variability, in particular in the more elevated and partially glaciated Southernmost Andes. Here we present a unique 17-year meteorological record (2000–2016 of four automatic weather stations (AWS across the Gran Campo Nevado Ice Cap (53°S in the Southernmost Andes (Chile and the conventional weather station Jorge Schythe of the Instituto de la Patagonia in Punta Arenas for comparison. We revisit the relationship between in situ observations and large-scale climate models as well as mesoscale weather patterns. For this purpose, a 37-year record of ERA Interim Reanalysis data has been used to compute a weather type classification based on a hierarchical correlation-based leader algorithm. The orographic perturbation on the predominantly westerly airflow determines the hydroclimatic response across the mountain range, leading to significant west-east gradients of precipitation, air temperature and humidity. Annual precipitation sums heavily drop within only tens of kilometers from ~7,500 mm a−1 to less than 800 mm a−1. The occurrence of high precipitation events of up to 620 mm in 5 days and wet spells of up to 61 consecutive days underscore the year-around wet conditions in the Southernmost Andes. Given the strong link between large-scale circulation and orographically controlled precipitation, the synoptic-scale weather conditions largely determine the precipitation and temperature variability on all time scales. Major synoptic weather types with distinct low-pressure cells in the Weddell Sea or Bellingshausen Sea, causing a prevailing southwesterly, northwesterly or westerly airflow, determine the weather conditions in Southernmost Patagonia during 68% of the year. At Gran Campo Nevado, more than 80% of extreme precipitation events occur during the persistence of these weather types. The

Chronological study of the pre-jurassic basement rocks of southern Patagonia

International Nuclear Information System (INIS)

Pankhurst, R.J; Rapela, C.W; Loske, W.P; Fanning, C.M

2001-01-01

Southern Patagonia east of the Andes was the site of extensive rhyolite volcanism during the Jurassic rifting of Gondwana and subsequent shallow marine basin formation during the Cretaceous. Thus exposures of pre-Jurassic basement are extremely sparse. Nevertheless, extraction of the maximum amount of information from these scattered outcrops of granite and metamorphic rocks is crucial to assessment of the Palaeozoic and earliest Mesozoic history and crustal structure of the Pacific margin of the supercontinent. In particular, the identification and possible correlation of early terrane accretion on this margin depends on comparison of pre-Jurassic igneous and metamorphic events with adjacent areas. This is a preliminary report on work now in progress to this end (au)

Sweet cherries from the end of the world: options and constraints for fruit production systems in South Patagonia, Argentina

NARCIS (Netherlands)

Cittadini, E.D.

2007-01-01

In South Patagonia, development of the fruit production sector has been almost exclusively based on the production of sweet cherry, with an area increase from 176 ha in 1997 to 578 ha at the end of 2006. These orchards are designed as intensive systems and oriented to export markets. Even though

Madera de Pinus ponderosa en Patagonia Argentina : Jornada Forestal Tecnológica

OpenAIRE

Refort, María Mercedes; Keil, Gabriel Darío; Spavento, Elena

2013-01-01

El día 15 de noviembre de 2012 se realizó en el Edificio de Bosques de la Facultad de Ciencias Agrarias y Forestales de la UNLP, la Primera Jornada Tecnológica sobre Madera de Pinus ponderosa en Patagonia Argentina, destinadas a profesionales de diferentes áreas, estudiantes, investigadores y docentes. Las Jornadas fueron organizadas por el Laboratorio de Investigaciones en Madera (LIMAD) y la Secretaría de Investigaciones de la Facultad de Ciencias Agrarias y Forestales, UNLP y auspiciadas p...

Mercury in lichens of Nahuel Huapi National Park, Patagonia, Argentina

International Nuclear Information System (INIS)

Ribeiro Guevara, S.; Bubach, D.; Arribere, M.; Nacional de Cuyo Universidad, Bariloche

2004-01-01

Mercury and other elements of interest are determined in lichens collected in Nahuel Huapi National Park, Northern Patagonia, Argentina. Pooled samples are analyzed by instrumental neutron activation analysis. Mercury contents in Usnea sp. collected from undisturbed sites range from 0.0558 ± 0.0083 to 1.38 ± 0.18 μg x g -1 . Other potential pollutants are identified by the analysis of Usnea sp. samples, namely Sb, As, Br, Zn, and Se. Previous experiments with foliose and fruticose lichens are also discussed. The analysis of mercury contents of foliose lichens sampled from urban and periurban sites of Bariloche city, and from undisturbed regions, demonstrate that the atmosphere of Bariloche city is enriched in mercury compared to the surroundings. The result is confirmed by transplantation experiments from undisturbed zones to urban sites. (author)

Capacity building for freshwater insect studies in northern Patagonia, Argentina: DARWIN Initiative programme

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Stephen J. BROOKS

2009-01-01

Full Text Available Este proyecto fue financiado durante un período de tres años, desde septiembre de 2006 a través de la Iniciativa Darwin del gobierno Británico. El objetivo de este trabajo es el estudio de los insectos acuáticos del Parque Nacional Nahuel Huapi (PNNHP, Patagonia, Argentina. El parque incluye una gran variedad de hábitats que comprenden arroyos, ríos y lagos los cuales se distribuyen desde el bosque siempreverde frío, hasta la zona árida de estepa. Todo el material será identificado y depositado en las colecciones del Museo La Plata y el Museo de Historia Natural de Londres. Los fondos de la Iniciativa Darwin han sido utilizados para equipar un laboratorio de biodiversidad en las oficinas del PNNHP en Bariloche y la estación de investigación en Puerto Blest. Toda la información de los insectos acuáticos y las distintas formaciones vegetales donde éstos se han encontrado, se incluirá en una base de datos (la primera de su tipo en Patagonia que utilizará la metodología GIS para analizar patrones de distribución de las especies en el parque. En estos momentos se están produciendo varias guías de campo para identificar los insectos acuáticos del PNNHP. Es nuestro deseo que los resultados obtenidos en este proyecto, contribuyan a la conservación de los sistemas acuáticos en Argentina y América del Sur

Saccharomyces eubayanus and Saccharomyces uvarum associated with the fermentation of Araucaria araucana seeds in Patagonia.

Science.gov (United States)

Rodríguez, M Eugenia; Pérez-Través, Laura; Sangorrín, Marcela P; Barrio, Eladio; Lopes, Christian A

2014-09-01

Mudai is a traditional fermented beverage, made from the seeds of the Araucaria araucana tree by Mapuche communities. The main goal of the present study was to identify and characterize the yeast microbiota responsible of Mudai fermentation as well as from A. araucana seeds and bark from different locations in Northern Patagonia. Only Hanseniaspora uvarum and a commercial bakery strain of Saccharomyces cerevisiae were isolated from Mudai and all Saccharomyces isolates recovered from A. araucana seed and bark samples belonged to the cryotolerant species Saccharomyces eubayanus and Saccharomyces uvarum. These two species were already reported in Nothofagus trees from Patagonia; however, this is the first time that they were isolated from A. araucana, which extends their ecological distribution. The presence of these species in A. araucana seeds and bark samples, led us to postulate a potential role for them as the original yeasts responsible for the elaboration of Mudai before the introduction of commercial S. cerevisiae cultures. The molecular and genetic characterization of the S. uvarum and S. eubayanus isolates and their comparison with European S. uvarum strains and S. eubayanus hybrids (S. bayanus and S. pastorianus), allowed their ecology and evolution us to be examined. © 2014 Federation of European Microbiological Societies. Published by John Wiley & Sons Ltd. All rights reserved.

La proyección colonial de Chile a la Patagonia Insular en el siglo XVIII

OpenAIRE

Urbina Carrasco, María Ximena

2011-01-01

In this article, the geopolitical consequences of the shipwreck of the English frigate Wager and the landfall of the ship Anna into the coasts of the Western Insular Patagonia in 1741 are presented, which were part of the fleet of George Anson. The news reporting the English presence in the deserted and unknown insular and coastal territory southernmost Chiloé, and which had disseminated towards the end of the continent, promoted the deployment of different actions tending to make presence no...

Alien invasions and the game of hide and seek in Patagonia.

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Martin Lindegren

Full Text Available The introduction, establishment and spread of alien species is a major threat to biodiversity and the provision of ecosystem services for human wellbeing. In order to reduce further loss of biodiversity and maintain productive and sustainable ecosystems, understanding the ecological mechanisms underlying species invasions and avoiding potentially harmful effects on native communities is urgently needed, but largely lacking. We here demonstrate, by means of hydroacoustics and advanced spatial modelling, how native fish species as a result of previous exposure to native predators may successfully respond to invasive novel predators through a complicated game of hide and seek, minimizing spatio-temporal overlap with predators, and potentially facilitating coexistence between native prey species (Galaxiids and introduced novel predators (Salmonids in a deep Andean lake, Patagonia.

Respuesta dietaria de tres rapaces frente a una presa introducida en Patagonia Dietary response of three raptor species to an introduced prey in Patagonia

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ANA L. MONSERRAT

2005-09-01

Full Text Available Los depredadores de marcada respuesta funcional pueden poseer la capacidad de estabilizar las poblaciones de sus presas, lo cual es destacable en el caso de presas introducidas, que suelen causar impactos negativos en los ecosistemas nativos y las actividades agropecuarias. La situación actual de la Patagonia es crítica respecto a la introducción de especies. Estudios previos indican que los depredadores nativos exhiben un cambio general en sus dietas debido a la introducción de presas exóticas que están reemplazando a sus presas originales. Determinamos los hábitos alimenticios del águila (Geranoaetus melanoluecus, el búho magallánico (Bubo magellanicus y el aguilucho común (Buteo polyosoma, tres de las principales aves depredadoras de la liebre europea (Lepus europaeus, introducida en el noroeste de Patagonia. Para esto analizamos 321, 115 y 78 egagrópilas de águila, búho y aguilucho respectivamente. Evaluamos las respuestas funcionales a la densidad de liebre europea y comparamos las dietas entre sitios diferentes. Las principales presas del aguilucho y del búho fueron los roedores sigmodontinos y en segundo lugar los tuco-tucos (Ctenomys spp.. El águila consumió principalmente liebres y en segundo lugar tuco-tucos, presentando una respuesta funcional significativa para la presa introducida. La dieta de este rapaz fue diferente entre sitios con alta y baja densidad de liebres. Para los otros dos rapaces no encontramos una respuesta funcional significativa para la liebre europea, pero la dieta del aguilucho varió en función del sitio geográfico. Concluimos que tanto el águila mora como el aguilucho se alimentan de manera generalista, siendo el búho el único de los tres rapaces con tendencia especialista sobre pequeños roedores. Por otra parte, la variación de la dieta del águila en función de la densidad de liebre europea le brinda el potencial de contribuir a la regulación de las poblaciones de la misma

Cultural Transmission of Traditional Knowledge in two populations of North-western Patagonia

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Lozada Mariana

2008-12-01

Full Text Available Abstract Background In the present study we have investigated the cultural transmission of two types of traditional plant knowledge in two communities of North-western Patagonia, Argentina. In the Pilcaniyeu community, we studied the transmission of traditional knowledge related to horticultural practices in home-gardens, greenhouses and gardens; while in the community of Cuyin Manzano, we studied wild plant gathering customs. Methods Ethnobotanical fieldwork was conducted by means of semi-structured interviews, in which we investigated which plants are used, at what life history phase was learned, modes of transmission and who the principal transmitters were in childhood and adulthood. In both communities, each of this three aspects related to cultural transmission were categorized and the frequencies of each category were obtained. The total number of species recorded in each community was also calculated. Frequencies were analyzed with the Chi-square test of independence. Results and discussion In both communities, transmission of traditional plant knowledge begins at an early age, as a family custom, in which women play a predominant role. Wild plant use and horticultural knowledge continue to be learned during adulthood. This was particularly registered associated with horticultural learning, which receives greater influence from extension agents who are introducing new practices and technology. This outside influence, which implies novelty, could imply syncretism but also traditional knowledge loss. Conclusion Given the remarkable acculturation processes occurring at present in rural communities of Northwestern Patagonia, it might be of vital importance to document traditional knowledge of ancient practices. Moreover, it could be interesting to share our results with both populations in order to encourage participatory activities within the communities which could enhance traditional knowledge horizontal transmission, particularly among

Análisis del gradiente edáfico en la región Andinopatagónica Analysis of soil gradient in Andean Patagonia Region

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Juan José Gaitán

2007-07-01

Full Text Available Se analizaron las relaciones entre la ubicación geográfica, precipitación media anual y nueve variables edáficas de 95 perfiles de suelos de origen volcánico distribuidos a lo largo de la región Andina de las provincias de Neuquén, Río Negro y Chubut. Con las variables edáficas correspondientes a dos profundidades (0-20 cm y 30-60 cm se realizó un análisis de cluster que permitió agrupar a los perfiles en cinco grupos principales. Se realizó un análisis de componentes principales y se observó que los grupos se diferenciaron a lo largo del eje 1. Este eje se relaciona con la longitud. Desde los suelos de régimen xérico de estepa ubicados en el este de la región hacia los suelos de régimen údico de bosque ubicados en el oeste, se incrementa el pH (NaF, la concentración de carbono orgánico y la capacidad de retención hídrica y disminuye, el pH (H2O, el pH (KCl y la densidad aparente.The relationships among location, mean annual precipitation and nine edaphic variables were studied for 95 profiles of volcanic soils throughout the Andean Region of the provinces of Neuquen, Rio Negro and Chubut. A cluster analysis conducted with the edaphic variables at two depths (0-20 cm and 30-60 cm indicated five main groups. Principal component analysis (PCA allowed to differentiate the groups for the axis 1. This axis was positively related to longitude, indicating an increase of pH (NaF, organic C and water retention capacity, and a decrease of pH (H2O, pH (KCl and bulk density from the xeric steppe soils at east to the udic forest soils at west.

Rehabilitación de la Patagonia. Un territorio periférico escrito por la narrativa argentina actual

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Alejandro Gasel

2011-06-01

Full Text Available La comunicación consiste en la exposición de las formas de la inscripción de la Patagonia Austral en la contemporaneidad de la narrativa argentina. Puntualmente pensando dos novelas: Falsa Calma de Sonia Cristoff (2004 y La Siberia de Cristina Siscar (2006 trataremos de razonar qué sigue de vigente y qué aparece como una rehabilitación de este territorio en el proceso de producción narrativa. En este sentido, pensamos que podemos plantear no solamente el fenómeno de la representación actual de este territorio sino la productividad reconocida en los textos a partir de un juego intertextual, que sincretiza a una memoria precedente que ha descripto y inscripto el territorio con la necesidad de referencia la crisis del presente o actualidad del territorio en formas de umbralidad. Para dar cuenta de este proceso hemos de remitirnos a pensar la enunciación de los textos, los usos de géneros discursivos, en especial, el relato viaje y la implicancia de la historia y la memoria para referirse políticamente a la Patagonia Austral argentina que sigue siendo tematizado en el variopinto paisaje de la Literatura Argentina.

A promising location in Patagonia for paleoclimate and paleoenvironmental reconstructions revealed by shallow firn core from Monte San Valentin (Northern patagonia Icefield, Chile)

DEFF Research Database (Denmark)

Vimeux, F.; de Angelis, M.; Ginot, P.

2008-01-01

temperature is -11.9°C at 10-m depth allowing to expect well preserved both chemical and isotopic signals, unperturbed by water percolation. The dating of the core, on the basis of a multi-proxy approach combining annual layer counting and radionuclide measurements, shows that past environment and climate can......The study of past climate variability from ice core investigations has been largely developed both in polar areas over the past decades and, more recently, in tropical regions, specifically along the South American Andes between 0° and 20°S. However a large gap still remains at mid......-latitudes in the Southern Hemisphere. In this framework, a 15.3-m long shallow firn core has been extracted in March 2005 from the summit plateau of Monte San Valentín (3747 m, 46°35'S, 73°19'W) in the Northern Patagonia Icefield to test its potential for paleoclimate and paleoenvironmental reconstructions. The firn...

Distribución del ictioplancton en la Patagonia austral de Chile: potenciales efectos del deshielo de Campos de Hielo Sur Ichthyoplankton distribution in South Patagonia, Chile: potential effects of ice melting from the Southern Ice Field

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Mauricio F Landaeta

2011-07-01

Full Text Available Durante octubre-noviembre de 2009 se realizó un crucero oceanográfico entre 50 y 53°S de Chile austral, en las cercanías del glaciar Campos de Hielo Sur. Las estaciones cercanas al glaciar presentaron baja temperatura (1-3°C y salinidad ( 0,1 ciclos s-1. Los principales taxa del ictioplancton fueron huevos y larvas de sardina fueguina Sprattus fuegensis, pez hacha Maurolicus parvipinnis, Macrouridae y merluza austral Merluccius australis. El desove principal de S. fuegensis (~ 8000 huevos 10 m-2 ocurrió en zonas mezcladas de la plataforma continental adyacente, mientras que el desove de M. parvipinnis ocurrió en canales intermedios asociado a valores intermedios de estabilidad (N~0,06 ciclos s-1. Se observó una nula o baja abundancia de huevos y larvas de peces en las cercanías del glaciar, y la abundancia de huevos de M. parvipinnis estuvo relacionada positivamente con la temperatura y salinidad de la columna de agua y negativamente con la estabilidad de la columna de agua. Además, hubo una relación negativa entre la densidad del agua de mar y el diámetro de los huevos de S. fuegensis. La relación entre deshielo e ictioplancton podría tener consecuencias en el transporte advectivo y mortalidad masiva de huevos y larvas de peces y el acople pelágico-bentónico en la Patagonia austral de Chile. Como el cambio climático global ha incrementado los deshielos de glaciares en latitudes altas, y el aumento del ingreso de aguas de baja temperatura y salinidad podría tener consecuencias en el ictioplancton de la Patagonia chilena.In October-November 2009, an oceanographic survey was carried out between 50 and 53°S off southern Chile, near the Southern Ice Field. The stations near the glacier showed low temperatures (1-3°C and salinity ( 0.1 cycles s-1. Main ichthyoplankton taxa were eggs and larvae of southern sprat Sprattus fuegensis, lightfish Maurolicus parvipinnis, Macrouridae, and southern hake Merluccius australis. The main

Sexual dimorphism in the mandible of the armadillo Chaetophractus villosus (Desmarest, 1804) (Dasypodidae) from northern Patagonia, Argentina

OpenAIRE

Squarcia, SM.; Sidorkewicj, NS.; Camina, R.; Casanave, EB.

2009-01-01

The aim of this study was to study the sexual dimorphism in adult Chaetophractus villosus (Desmarest, 1804), from northern Patagonia, Argentina. Eight mandibular traits were measured in 37 males and 34 females. Univariate and multivariate morphometric analysis were applied to the data set. Results showed that C. villosus was sexually dimorphic, with higher absolute values corresponding to females. The total length of the mandible was the most important variable to discriminate sexes, followed...

Revisión de la distribución de Hyalella Smith, 1874 (Crustacea, Amphipoda) en la Patagonia e islas adyacentes Revision of the distribution of Hyalella Smith, 1874 (Crustacea, Amphipoda) in Patagonia and adjacent islands

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Patricio De los Ríos-Escalante; Andrés Mansilla; Christopher B Anderson

2012-01-01

Se realiza una revisión de las especies de anfípodos del género Hyalella en aguas continentales de la Patagonia, isla Tierra del Fuego, Reserva de la Biosfera de Cabo de Hornos e islas adyacentes (38-54°S). Esta zona austral presenta numerosos tipos de ambientes acuáticos continentales como lagos, humedales y arroyos, y las principales especies en ambientes bentónicos corresponden a anfípodos del género Hyalella. La bibliografía menciona la presencia de H. costera, H. chiloensis, H. falklande...

A new species of Parapsectrocladius Cranston (Diptera: Chironomidae: Orthocladiinae) from Patagonia, Argentina.

Science.gov (United States)

Donato, Mariano; Mauad, Melina; Fuentes, María Cecilia

2015-01-21

Parapsectrocladius setosus sp. n. is described and figured as pupa and male imago, based on material collected in Patagonia, Argentina. The male of the new species groups with P. escondido Cranston & Añón Suárez by having the anal point tapering triangular; inferior volsella simple, rounded, without any dorsal ridge and apically blunt. It can be distinguished from P. escondido by the possession of strong setae on the inner margin of inferior volsella. New material of Parapsectrocladius belonging from several localities allows us to emend the generic diagnosis of the adult male, female and larva of Parapsectrocladius, discuss its phylogenetic position and to expand the geographic distribution of P. acuminatus Cranston, P. escondido and P. reissi. Cranston. 

Polen de las Mieles de la Patagonia Andina (Chubut-Argentina Pollen of honeys from the Andean Patagonia (Chubut-Argentina

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Alicia Forcone

2006-07-01

Full Text Available Se describen e ilustran mediante fotomicrografías tomadas con MO y MEB, 30 tipos polínicos, determinados en las mieles producidas en la región andina de Chubut (Patagonia Argentina. Los tipos morfológicos descriptos pertenecen a las siguientes familias: Alstroemeriaceae, Apiaceae, Buddlejaceae, Caryophyllaceae, Caprifoliaceae, Celastraceae, Clusiaceae, Convolvulaceae, Ericaceae, Elaeocarpaceae, Fabaceae, Fagaceae, Lamiaceae, Papaveraceae, Polemoniaceae, Polygalaceae, Proteaceae, Ranunculaceae, Rosaceae, Saxifragaceae, Solanaceae, Thymelaceae y Verbenaceae. La mayoría de los tipos polínicos descriptos fueron hallados en las mieles como polen de menor importancia o traza con excepción de Aristotelia chilensis y Escallonia sp., que alcanzaron la categoría de polen dominante, y de Lomatia hirsuta, hallada como polen secundario.Thirty pollen types identified in the honeys from the Andean region of Chubut are described and illustrated by means of LM and SEM photomicrographs. Pollen types belong to the following families: Alstroemeriaceae, Apiaceae, Buddlejaceae, Caryophyllaceae, Caprifoliaceae, Celastraceae, Clusiaceae, Convolvulaceae, Ericaceae, Elaeocarpaceae, Fabaceae, Fagaceae, Lamiaceae, Papaveraceae, Polemoniaceae, Polygalaceae, Proteaceae, Ranunculaceae, Rosaceae, Saxifragaceae, Solanaceae, Thymelaceae, and Verbenaceae. Most pollen types described were found in the honeys as minor important pollen or traces, except Aristotelia chilensis, Escallonia sp., which reached the category of dominant pollen, and Lomatia hirsuta, which was found as secondary pollen.

Rehabilitación de la Patagonia. Un territorio periférico escrito por la narrativa argentina actual

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Alejandro Gasel

2011-07-01

Full Text Available http://dx.doi.org/10.5007/1984-784X.2011v11n16p50 La comunicación consiste en la exposición de las formas de la inscripción de la Patagonia Austral en la contemporaneidad de la narrativa argentina. Puntualmente pensando dos novelas: Falsa Calma de Sonia Cristoff (2004 y La Siberia de Cristina Siscar (2006  trataremos de razonar qué  sigue de vigente y qué aparece como una rehabilitación  de este territorio en el proceso de producción narrativa. En este sentido, pensamos que podemos plantear  no solamente el fenómeno de la representación actual de este territorio sino la productividad reconocida en los textos a partir de un juego intertextual, que sincretiza a una memoria precedente que ha descripto y inscripto el territorio con la necesidad de referencia la crisis del presente o actualidad del territorio en formas de umbralidad. Para dar cuenta de este proceso  hemos de remitirnos a pensar la enunciación  de los textos, los usos de géneros discursivos, en especial, el relato viaje y la implicancia de la historia y la memoria para referirse políticamente a la Patagonia Austral argentina que sigue siendo tematizado en el variopinto paisaje de la Literatura Argentina.

A widespread devonian methamorphic episode in northern Patagonia, Argentina

International Nuclear Information System (INIS)

Ostera, H.A.; Linares, E; Haller, M.J; Cagnoni, M.C.; Lopez de Luchi, M

2001-01-01

One of the greatest difficulties in Rb-Sr dating on metamorphic rocks is the lack of evidences of complete re-homogenization and the assumption of a common initial ratio for all the samples analyzed. The redistribution of parent-daughter elements and the concomitant partial or complete equilibration of the isotopic system could occur on mineral or regional size domains. This fact led to many authors to discard or disapprove the use of this method in metamorphic terranes. However, recent papers suggested that this opinion has been premature and that additional information could be obtained by the Rb-Sr method despite the difficulties that it implies (Patel et al., 1999). Many reports on well fitted Rb-Sr isochrons giving the age of metamorphism in regionally metamorphosed rocks, suggest that the Sr isotopic equilibrium can take place at different scales. This paper presents data and the Rb-Sr system behaviour from a metamorphic unit (Cushamen Formation) in the Northern Patagonia, as a contribution to elucidate the evolution of the North Patagonian Massif (au)

The volcanic acidification of glacial Lake Caviahue, Province of Neuquen, Argentina

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Varekamp, Johan C.

2008-12-01

Lake Caviahue (northern Patagonia, Argentina) is a large glacial lake acidified by volcanic fluids from Copahue volcano. The lake and the feeding rivers were sampled annually from 1997 till early 2006, including the eruptive period of 2000. Lake Caviahue waters evolved over time, with the most concentrated waters in 2000 during the eruptive period, followed by gradual dilution that was interrupted by renewed acidification in 2003-2004. Inversion of the lake water data and application of a dynamic non-steady state model for the lake provides our best quantitative estimates for the variation in element fluxes over the 9-year period. The model flux results agree well with most of the measured fluxes. The Copahue hydrothermal system had gently declining element fluxes between 1997 and mid-1999, although the lake was still becoming more concentrated. About 2-3 months before the 2000 eruption, element fluxes increased strongly, but the hydrothermal fluxes almost shutoff directly after the main eruptive events. The fluxes of several elements recovered post-2001, with an increase in element fluxes in 2003-2004; the lake became more dilute between 2004 and 2006. The intrusion of new magma into the hydrothermal system just prior to the 2000 eruption led to enhanced water rock interaction, with higher concentrations of the rock forming elements in the fluids, and the hot spring flow rate increased as a result of the higher pressure in the reservoir. The fluids became saturated in alunite and jarosite, and they were already saturated with anhydrite. Precipitation of these minerals possibly led to a decreased permeability of the hydrothermal reservoir, leading to the strongly reduced element fluxes just after the eruption. In addition, K, Al and S were retained in the newly precipitated minerals as well, further diminishing their export. The acidification in 2003-2004 may have resulted from a new small intrusion of magma or resulted from seismic activity that created new

INVITACIÓN AL GEOTURISMO. REFLEXIONES SOBRE GEODIVERSIDAD Y POTENCIAL GEOTURÍSTICO EN LA PATAGONIA ARGENTINA

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María de la Paloma Martínez Fernandez

2013-12-01

Full Text Available Geotourism as a type of nature tourism comes to fill an empty field on the use of geological resources of the landscape in Argentina. With an approach sustained by the ideas and progresses achieved along the last decades about sustainable tourism, geosites and geoparks are getting a boost worldwide. However, in Argentina this concept has not being incorporated yet within public or private touristic policies, despite owning a valuable geodiversity both scientific or aesthetically. Based on a review of concepts and foreign experiences on the subject, this article analyses the possibilities and parameters for geotourism developing in Argentinean Patagonia.

Diacronía y sincronía del contacto lingüístico en Patagonia sur

OpenAIRE

Virkel, Ana Ester

2012-01-01

Desde su integración al Estado argentino, la región patagónica fue receptora de inmigrantes de muy diversas procedencias, quienes, integrándose con las etnias aborígenes preexistentes, configuraron un contexto multiétnico y multicultural, con la consiguiente diversidad lingüística. El propósito de este trabajo es trazar un esquemático itinerario a través de la historia lingüística de Chubut, Patagonia sur, focalizando el interés en una serie de procesos migratorios que impactan de modo sus...

Respuesta del microfitoplancton a la adición de nitrato y ácido silícico en fiordos de la Patagonia chilena

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Pamela Labbé-Ibáñez

2015-03-01

Full Text Available La Patagonia chilena está experimentando un aumento del uso del suelo y océano costero y el acelerado derretimiento de algunos glaciares, por lo que uno de los escenarios a futuro es que los fiordos adyacentes reciban cantidades variables de agua dulce y nutrientes inorgánicos. Se estudió la respuesta de ensambles de fitoplancton de los fiordos Reloncaví en invierno y Comau en primavera, a la adición de nitrato y ácido silícico en experimentos de microcosmos. Los ensambles fitoplanctónicos estudiados respondieron a la adición de nutrientes con incrementos en la abundancia celular biomasa autotrófica (clorofila-a y cambios en la composición específica, destacando el cambio de dominancia de especies de diatomeas pennadas a céntricas formadoras de cadenas. Estos resultados dan indicios acerca de los factores que afectan a las comunidades microalgales en un escenario de cambio climático e intervención antrópica de los fiordos de la Patagonia Norte.

Noble gas composition of subcontinental lithospheric mantle: An extensively degassed reservoir beneath Southern Patagonia

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Jalowitzki, Tiago; Sumino, Hirochika; Conceição, Rommulo V.; Orihashi, Yuji; Nagao, Keisuke; Bertotto, Gustavo W.; Balbinot, Eduardo; Schilling, Manuel E.; Gervasoni, Fernanda

2016-09-01

Patagonia, in the Southern Andes, is one of the few locations where interactions between the oceanic and continental lithosphere can be studied due to subduction of an active spreading ridge beneath the continent. In order to characterize the noble gas composition of Patagonian subcontinental lithospheric mantle (SCLM), we present the first noble gas data alongside new lithophile (Sr-Nd-Pb) isotopic data for mantle xenoliths from Pali-Aike Volcanic Field and Gobernador Gregores, Southern Patagonia. Based on noble gas isotopic compositions, Pali-Aike mantle xenoliths represent intrinsic SCLM with higher (U + Th + K)/(3He, 22Ne, 36Ar) ratios than the mid-ocean ridge basalt (MORB) source. This reservoir shows slightly radiogenic helium (3He/4He = 6.84-6.90 RA), coupled with a strongly nucleogenic neon signature (mantle source 21Ne/22Ne = 0.085-0.094). The 40Ar/36Ar ratios vary from a near-atmospheric ratio of 510 up to 17700, with mantle source 40Ar/36Ar between 31100-6800+9400 and 54000-9600+14200. In addition, the 3He/22Ne ratios for the local SCLM endmember, at 12.03 ± 0.15 to 13.66 ± 0.37, are higher than depleted MORBs, at 3He/22Ne = 8.31-9.75. Although asthenospheric mantle upwelling through the Patagonian slab window would result in a MORB-like metasomatism after collision of the South Chile Ridge with the Chile trench ca. 14 Ma, this mantle reservoir could have remained unhomogenized after rapid passage and northward migration of the Chile Triple Junction. The mantle endmember xenon isotopic ratios of Pali-Aike mantle xenoliths, which is first defined for any SCLM-derived samples, show values indistinguishable from the MORB source (129Xe/132Xe =1.0833-0.0053+0.0216 and 136Xe/132Xe =0.3761-0.0034+0.0246). The noble gas component observed in Gobernador Gregores mantle xenoliths is characterized by isotopic compositions in the MORB range in terms of helium (3He/4He = 7.17-7.37 RA), but with slightly nucleogenic neon (mantle source 21Ne/22Ne = 0.065-0.079). We

210 Pb fluxes in sediment layers sampled from Northern Patagonia lakes

International Nuclear Information System (INIS)

Ribeiro Guevara, S.; Sanchez, R.; Arribere, M.; Rizzo, A.

2003-01-01

Unsupported 210 Pb fluxes were determined from sediment core inventories in lakes located in Northern Patagonia, Argentina. Total 210 Pb, 226 Ra, associated with supported 210 Pb, and 137 Cs specific activity profiles were measured by gamma-ray spectrometry. Unsupported 210 Pb fluxes showed very low values when compared to other regions, with a 12 fold variation, ranging from 4 to 48 Bq m -2 x y -1 . The linear correlation observed between the 210 Pb fluxes and 137 Cs cumulative fluxes in sediment cores sampled from water bodies within a zone with similar precipitation demonstrated that both radioisotopes behave in the same manner in these systems concerning the processes occurred from fallout to sediment deposition, and that there are no appreciable local or regional sources of unsupported 210 Pb. Positive correlation of 210 Pb fluxes with organic matter contents of the uppermost sediment core layers was also observed. (author)

A Gigantic, Exceptionally Complete Titanosaurian Sauropod Dinosaur from Southern Patagonia, Argentina

Science.gov (United States)

Lacovara, Kenneth J.; Lamanna, Matthew C.; Ibiricu, Lucio M.; Poole, Jason C.; Schroeter, Elena R.; Ullmann, Paul V.; Voegele, Kristyn K.; Boles, Zachary M.; Carter, Aja M.; Fowler, Emma K.; Egerton, Victoria M.; Moyer, Alison E.; Coughenour, Christopher L.; Schein, Jason P.; Harris, Jerald D.; Martínez, Rubén D.; Novas, Fernando E.

2014-01-01

Titanosaurian sauropod dinosaurs were the most diverse and abundant large-bodied herbivores in the southern continents during the final 30 million years of the Mesozoic Era. Several titanosaur species are regarded as the most massive land-living animals yet discovered; nevertheless, nearly all of these giant titanosaurs are known only from very incomplete fossils, hindering a detailed understanding of their anatomy. Here we describe a new and gigantic titanosaur, Dreadnoughtus schrani, from Upper Cretaceous sediments in southern Patagonia, Argentina. Represented by approximately 70% of the postcranial skeleton, plus craniodental remains, Dreadnoughtus is the most complete giant titanosaur yet discovered, and provides new insight into the morphology and evolutionary history of these colossal animals. Furthermore, despite its estimated mass of about 59.3 metric tons, the bone histology of the Dreadnoughtus type specimen reveals that this individual was still growing at the time of death. PMID:25186586

Nueva especie de Planorbidae (Gastropoda: Basommatophora en la Patagonia chilena: Biomphalaria cristiani sp. nov. First record of Planorbidae (Mollusca: Basommatophora in Chilean Patagonia: Biomphalaria cristiani sp. nov.

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Carmen Fuentealba

2012-11-01

Full Text Available En Chile la familia Planorbidae está representada por el género Biomphalaria Preston, 1910, compuesta por siete especies distribuidas desde Isluga hasta el río Puelo. De estas especies, solo B.peregrina, ampliamente distribuida en el neotrópico, y Biomphalaria aymara de Isluga, han sido reconocidas sobre la base de la morfología del sistema reproductor y la rádula, caracteres que fueron utilizados en el presente estudio para diferenciar a Biomphalaria cristiani como nueva especie del grupo y primer registro de la familia en la Patagonia chilena, ampliando su actual rango de distribución. Los caracteres que permiten la diagnosis de B. cristiani son el saco vaginal vestigial truncado, ausencia del desarrollo de los músculos suspensores del pene, vaina del pene corta en relación al prepucio, oviducto largo en relación al espermioducto y vaso deferente más delgado y largo que la vaina del pene, de tamano similar al prepucio. La localidad tipo de Biomphalaria cristiani sp. nov. es Laguna Cisnes (47°7'10.02"S, 72°27'40.65"W, región de Aysén.The family Planorbidae in Chile is represented by the genus Biomphalaria Preston, 1910, consisting of seven species distributed from Isluga to Puelo River. Of these species, only Biomphalaria peregrina widely distributed in the neotropical and Biomphalaria aymara from Isluga are recognized based on the morphology of the reproductive system and radula, characters that were used in the following study to differentiate Biomphalaria cristiani as a new species of this group and first record of the family in Chilean Patagonia, extending its current distribution range. The characters for the diagnosis of B. cristiani are: truncated vestigial vaginal pouch, lack of development of the penis retractor muscles, penis sheath shorter than the prepuce, oviduct longer than the spermiduct and vas deferens thinner and longer than the penis sheath, similar size to the prepuce. The type locality of B. cristiani nov. sp

Aportes de los "intermediarios culturales" en la conformación de los paisajes fronterizos del norte de la patagonia a fines del siglo XVIII

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Laura Aylén Enrique

2012-12-01

Full Text Available A fines del siglo XVIII la Corona española envió expedicionarios a reconocer el norte de la Patagonia, un territorio dominado por grupos indígenas pero de importancia estratégica para los hispanocriollos. Los funcionarios del Virreinato del Río de la Plata que llevaron a cabo dichas exploraciones registraron sus impresiones en diarios de viaje que analizamos con el objetivo de examinar los modos en que el paisaje norpatagónico fue construido simbólicamente. Consideramos que dicho paisaje se constituyó en base a las luchas desplegadas tanto por hispanocriollos como por indígenas buscando dar sentido al territorio. Sostenemos que, en este contexto, los personajes que se desempeñaban como intérpretes ejercían un rol fundamental en la configuración del territorio, dada la ambigüedad de su posición de intermediarios en las relaciones interétnicas.By late eighteen century the Spanish Crown sent expedition to recognize north Patagonia, a territory dominated by indigenous groups but also of strategic importance to the Hispanic-Creole population. River Plate Viceroyalty officials in charge of the above-mentioned explorations registered their impressions in travel diaries that are thoroughly analyzed in order to discover the ways this landscape of north Patagonia was symbolically constructed. We think this mestizo landscape was the result of struggles maintained between Hispanic-Creoles and natives searching to convey meaning to the territory. Moreover, we state that in this context, the actors who served as interpreters developed a key role in the territorial configuration, given the ambiguity of their position as intermediaries of interethnic relations.

Modelling Soil Carbon Content in South Patagonia and Evaluating Changes According to Climate, Vegetation, Desertification and Grazing

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Pablo Luis Peri

2018-02-01

Full Text Available In Southern Patagonia, a long-term monitoring network has been established to assess bio-indicators as an early warning of environmental changes due to climate change and human activities. Soil organic carbon (SOC content in rangelands provides a range of important ecosystem services and supports the capacity of the land to sustain plant and animal productivity. The objectives in this study were to model SOC (30 cm stocks at a regional scale using climatic, topographic and vegetation variables, and to establish a baseline that can be used as an indicator of rangeland condition. For modelling, we used a stepwise multiple regression to identify variables that explain SOC variation at the landscape scale. With the SOC model, we obtained a SOC map for the entire Santa Cruz province, where the variables derived from the multiple linear regression models were integrated into a geographic information system (GIS. SOC stock to 30 cm ranged from 1.38 to 32.63 kg C m−2. The fitted model explained 76.4% of SOC variation using as independent variables isothermality, precipitation seasonality and vegetation cover expressed as a normalized difference vegetation index. The SOC map discriminated in three categories (low, medium, high determined patterns among environmental and land use variables. For example, SOC decreased with desertification due to erosion processes. The understanding and mapping of SOC in Patagonia contributes as a bridge across main issues such as climate change, desertification and biodiversity conservation.

Presence of Arctotherium (Carnivora, Ursidae, Tremarctinae in a pre-cultural level of Baño Nuevo-1 cave (Central Patagonia, Chile

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López Mendoza, P.

2015-12-01

Full Text Available The description of an I3 assigned to Arctotherium sp. obtained from the Baño Nuevo-1 site (Central Patagonia, Chile is presented. The finding was recovered from Layer 5 and it is associated to Macrauchenia sp., Lama guanicoe, Felidae, Camelidae, Equidae and Mylodontidae, within a sterile deposit of cultural material, dated between ca. 13.500 and 11.200 BP. Despite the fact that it is only a single specimen, such finding extends the known distribution for the genus in Chile.Se presenta la descripción de un I3 asignado a Arctotherium sp. proveniente del sitio Baño Nuevo-1 (Patagonia Central, Chile. El hallazgo fue realizado en la Capa 5 y está asociado a restos de Macrauchenia sp., Lama guanicoe, Felidae, Camelidae, Equidae y Mylodontidae dentro de un depósito estéril de material cultural, datado entre los ca. 13.500 y 11.200 años AP. Aunque se trata de un único espécimen, amplía el rango de distribución conocido para este género en Chile.

Insectos acuáticos de la Meseta del Somuncura, Patagonia, Argentina. Inventario preliminar

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Javier MUZÓN

2005-01-01

Full Text Available Se brinda un inventario preliminar de los insectos acuáticos de la Meseta del Somuncura y su área de influencia (Patagonia, Argentina realizado sobre la base de colecciones y registros previos de especies pertenecientes a los órdenes Ephemeroptera, Odonata, Hemiptera (Heteroptera, Trichoptera, Diptera (familias Ceratopogonidae, Culicidae y Psychodidae y Coleoptera. Se han relevado diversos tipos de ambientes en 14 localidades. El número de especies registrado asciende a 78, agrupadas en 51 géneros y 26 familias, de las cuales 33 se citan por primera vez del área. De los taxa registrados 83% de los géneros corresponden a grupos de amplia distribución (neotropicales, americanos o cosmopolitas, mientras que 41% de las especies presentan una distribución patagónica o andina.

Toxocariasis in Carnivora from Argentinean Patagonia: Species molecular identification, hosts, and geographical distribution

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R.M. Vega

2018-04-01

Full Text Available Twenty four specimens of seven species belonging to the families Felidae, Mustelidae, and Canidae were obtained in Lanín and Nahuel Huapi National Parks from March 1996 to April 2016. Specimens were processed by necropsy in order to contribute to the knowledge of toxocariasis in wild carnivores of Argentinean Patagonia. The only Puma concolor and the seven Leopardus geoffroyi were positive for Toxocara cati. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP of the ITS-1 region from larval and adult DNA was carried out to confirm parasite species identification. This is the first molecular determination of T. cati from wild felids in Argentina and the study also fill gaps about the spatial distribution and hosts for Toxocara cati. Keywords: Toxocara cati, Puma concolor, Leopardus geoffroyi, Molecular identification, Argentina

Estado actual de las investigaciones tafonómicas naturalistas en Punta Entrada y Monte León (patagonia meridional)

OpenAIRE

Muñoz, Sebastián Ramón; Cruz, Isabel

2017-01-01

Se presentan los resultados de las investigaciones tafonómicas naturalistas realizadas desde 2005 en la desembocadura del río Santa Cruz y el parque Nacional Monte león (Patagonia Meridional) dirigidas a conocer los modos en que tiene lugar el reciclado de restos de vertebrados en un mismo contexto ambiental, la estepa costera patagónica. Se resume el conocimiento generado sobre: el tiempo involucrado en la desarticulación de carcasas de vertebrados; los procesos y actores intervinientes y ...

Is forage productivity of meadows influenced by the afforestation of upstream hillsides? A study in NW Patagonia

Energy Technology Data Exchange (ETDEWEB)

Weigandt, M.; Gyenge, J.; Fernandez, M. E.; Varela, S.; Schlichter, T.

2011-07-01

Meadows are important reserves of water, with a key role in the maintenance of the biodiversity and productivity of ecosystems. In Patagonia, Argentina, afforestation with fast-growing exotic conifers has slowly but continuously increased over recent decades; though unfortunately, knowledge of the effects of afforestation on water resources remains scarce, with no information at all related to its impact on water dynamics and productivity of meadows located down slope to it. The effects of Pinus ponderosa afforestation on water dynamics (soil moisture contents and groundwater level) and productivity (aboveground forage productivity) of Northwest Patagonia meadows under xeric and humid conditions were analyzed. In the humid meadow, gravimetric soil water content, groundwater level and forage productivity were similar down slope of forested and non-forested slopes, with a trend towards higher forage productivity on the forested slope. In the xeric meadow, gravimetric soil water content was always higher down slope of the non-forested slope, with no difference in groundwater level between treatments. Forage productivity was statistically similar between situations (down slope of forested and non-forested slopes), with a trend towards higher productivity in the zone with higher soil water content. The main difference in the latter was related to differences in soil texture between zones. These results suggest that coniferous plantations located upstream of this type of meadow do not produce a direct effect on its aboveground forage productivity. These systems have high complexity linked to precipitation, geomorphology and previous history of land use, which determine primarily soil water dynamics and consequently, forage productivity. (Author) 42 refs.

La evolución del espacio social y urbano en la capital de la Patagonia chilena. Punta Arenas

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Luis Inostroza Pino

2008-05-01

Razones del contexto mundial apoyadas por adecuadas decisiones a nivel local, son las que permitieron el desarrollo de la Patagonia y de la ciudad de Punta Arenas fundamentalmente hasta fines del siglo XIX. La iniciación del tráfico regular entre Europa y el Pacífico, con recalada obligada en la colonia, y las medidas de Puerto libre y de incentivo a la inmigración de colonos nacionales y extranjeros, influirán decisivamente en ese desarrollo. El modesto pueblo se transforma en un importante centro urbano.

APOROCOTYLE MARIACHRISTINAE N. SP., AND A. YMAKARA VILLALBA & FERNANDEZ, 1986 (DIGENEA: APOROCOTYLIDAE) OF THE PINK CUSK-EEL, GENYPTERUS BLACODES (OPHIDIIFORMES: OPHIDIIDAE) FROM PATAGONIA, ARGENTINA

Czech Academy of Sciences Publication Activity Database

Hernandez-Orts, J.S.; Alama-Bermejo, Gema; Carillo, J.M.; García, N.A.; Crespo, E.A.; Raga, J. A.; Montero, E. E.

2012-01-01

Roč. 19, č. 4 (2012), s. 319-330 ISSN 1252-607X R&D Projects: GA ČR GBP505/12/G112 Institutional support: RVO:60077344 Keywords : Aporocotylidae * Aporocotyle * A. mariachristinae n. sp. * A. ymakara * Genypterus blacodes * Ophidiidae * Patagonia * Argentina * rDNA sequences Subject RIV: EB - Genetics ; Molecular Biology Impact factor: 1.116, year: 2012

Paleomagnetism of Jurassic and Cretaceous rocks in central Patagonia: a key to constrain the timing of rotations during the breakup of southwestern Gondwana?

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Geuna, Silvana E.; Somoza, Rubén; Vizán, Haroldo; Figari, Eduardo G.; Rinaldi, Carlos A.

2000-08-01

A paleomagnetic study in Jurassic and Cretaceous rocks from the Cañadón Asfalto basin, central Patagonia, indicates the occurrence of about 25-30° clockwise rotation in Upper Jurassic-lowermost Cretaceous rocks, whereas the overlying mid-Cretaceous rocks do not show evidence of rotation. This constrains the tectonic rotation to be related to a major regional unconformity in Patagonia, which in turn seems to be close in time with the early opening of the South Atlantic Ocean. The sense and probably the timing of this rotation are similar to those of other paleomagnetically detected rotations in different areas of southwestern Gondwana, suggesting a possible relationship between these and major tectonic processes related with fragmentation of the supercontinent. On the other hand, the mid-Cretaceous rocks in the region yield a paleopole located at Lat. 87° South, Long. 159° East, A95=3.8°. This pole position is consistent with coeval high-quality paleopoles of other plates when transferred to South American coordinates, implying it is an accurate determination of the Aptian (circa 116 Ma) geomagnetic field in South America.

Crecimiento anual de cuatro especies arbóreas con yemas desnudas nativas de los bosques templados húmedos de Patagonia

OpenAIRE

Sosa, Claudia M; Puntieri, Javier G

2016-01-01

Las especies vegetales que habitan en regiones con bajo nivel de estacionalidad en el clima suelen presentar rasgos morfo-arquitecturales que ocurren con menor frecuencia en especies de regiones con clima estacional. El objetivo de este estudio fue evaluar el crecimiento primario en vivero de cuatro especies leñosas típicas de los bosques templados húmedos de Patagonia, conocidos como selva valdiviana, donde el grado de estacionalidad es menos marcado que en otros bosques patagónicos. Las esp...

Cystobasidiomycetes yeasts from Patagonia (Argentina): description of Rhodotorula meli sp. nov. from glacial meltwater.

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Libkind, Diego; Sampaio, José Paulo; van Broock, Maria

2010-09-01

A basidiomycetous yeast, strain CRUB 1032(T), which formed salmon-pink colonies, was isolated from glacial meltwater in Patagonia, Argentina. Morphological, physiological and biochemical characterization indicated that this strain belonged to the genus Rhodotorula. Molecular taxonomic analysis based on the 26S rDNA D1/D2 domain and internal transcribed spacer region sequences showed that strain CRUB 1032(T) represents an undescribed yeast species, for which the name Rhodotorula meli sp. nov. is proposed (type strain is CRUB 1032(T)=CBS 10797(T)=JCM 15319(T)). Phylogenetic analysis showed that Rhodotorula lamellibrachii was the closest known species, which, together with R. meli, formed a separate cluster related to the Sakaguchia clade within the Cystobasidiomycetes. Additional Patagonian yeast isolates of the class Cystobasidiomycetes are also investigated in the present work.

A large Cretaceous theropod from Patagonia, Argentina, and the evolution of carcharodontosaurids

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Novas, Fernando E.; Valais, Silvina; Vickers-Rich, Pat; Rich, Tom

2005-05-01

The Cretaceous Carcharodontosauridae is the latest clade of carnosaurs, including the largest predatory dinosaurs yet recorded. Albeit spectacular for their size, the skeletal anatomy of these theropods remains poorly-known, and their diversity was until recently restricted to two Cenomanian species: the highly derived Giganotosaurus carolinii, from southern South America, and the incompletely known Carcharodontosaurus saharicus, from northern Africa. Here we describe an older and basal member of the group, Tyrannotitan chubutensis gen. et sp. nov., from Aptian strata of Patagonia, Argentina. The new taxon gives new insights into the systematics and evolution of carcharodontosaurids and offers a better understanding of the evolution of Southern theropod faunas. We suggest that carcharodontosaurids radiated in Gondwana sharing with spinosaurids the role of top-predators until their extinction in Cenomanian Turonian times. During this interval, the diplodocoid sauropods and giant titanosaurians went extinct (probably as part of a global-scale crisis), and the smaller abelisaurid theropods took dominance, reigning until the end of the Cretaceous. Electronic Supplementary Material is available.

Hydroclimatic conditions trigger record harmful algal bloom in western Patagonia (summer 2016).

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León-Muñoz, Jorge; Urbina, Mauricio A; Garreaud, René; Iriarte, José Luis

2018-01-22

A harmful algal bloom (HAB) of the raphidophyta alga Pseudochattonella cf. verruculosa during the 2016 austral summer (February-March) killed nearly 12% of the Chilean salmon production, causing the worst mass mortality of fish and shellfish ever recorded in the coastal waters of western Patagonia. The HAB coincided with a strong El Niño event and the positive phase of the Southern Annular Mode that altered the atmospheric circulation in southern South America and the adjacent Pacific Ocean. This led to very dry conditions and higher than normal solar radiation reaching the surface. Using time series of atmospheric, hydrologic and oceanographic data we show here that an increase in surface water temperature and reduced freshwater input resulted in a weakening of the vertical stratification in the fjords and sounds of this region. This allowed the advection of more saline and nutrient-rich waters, ultimately resulting in an active harmful algal bloom in coastal southern Chile.

Ethical and Civic Education. Difficulties during the Curricular Reform in Argentine Patagonia

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Isabelino Siede

2015-04-01

Full Text Available DOI: http://dx.doi.org/10.17227/01234870.41folios51.68 What type of ethical and civic education is effectively provided at school? This article analyzes the curricular prescriptions of Ethical and Citizenship Education in primary schools of the Argentine Patagonia, as well as its relations and contradictions with the school practices of moral education It inquires the process of definition of the area in the context of the Educational Reform in the 90s. Also, it pursuits to remake the way it was incorporated in the provincial curriculum design. Throughout focus groups and interviews to teachers from different public and private schools of three towns from de north of Santa Cruz, we analyze the descriptions and expectative of the teachers about their teaching practice in the moral area, as well as the possible causes of the differences and the contradictions between the policies of the curricular statement and educational proposals offered at school.

A single haplotype hyposensitive to light and requiring strong vernalization dominates Arabidopsis thaliana populations in Patagonia, Argentina.

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Kasulin, Luciana; Rowan, Beth A; León, Rolando J C; Schuenemann, Verena J; Weigel, Detlef; Botto, Javier F

2017-07-01

The growing collection of sequenced or genotyped Arabidopsis thaliana accessions includes mostly individuals from the native Eurasian and N. African range and introduced North American populations. Here, we describe the genetic and phenotypic diversity, along with habitats and life history, of A. thaliana plants collected at the southernmost end of its worldwide distribution. Seed samples were harvested from plants growing in four sites within a ~3500-km 2 -area in Patagonia, Argentina, and represent the first germplasm to be collected in South America for this species. Whole-genome resequencing revealed that plants from the four sites and a Patagonia herbarium specimen collected in 1967 formed a single haplogroup (Pat), indicating that the phenotypic variation observed in the field reflected plastic responses to the environment. admixture and principal components analyses suggest that the ancestor of the Pat haplogroup either came from Italy or the Balkan/Caucasus regions of Eurasia. In the laboratory, plants from the Pat haplogroup were hyposensitive to continuous red (Rc) and shade light, with corresponding changes in the expression of phytochrome signalling genes. Pat had higher PIF3 and PIF5 and lower HY5 expression under Rc light; and lower expression of PIL1, ATHB2 and HFR1 under shade compared to Col-0. In addition, Pat plants had a strong vernalization requirement associated with high levels of FLC expression. We conclude that including Pat in studies of natural variation and in comparison with other introduced populations will provide additional information for association studies and allow for a more detailed assessment of the demographic events following colonization. © 2017 John Wiley & Sons Ltd.

Rio+20

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Robert Horn

2012-10-01

Full Text Available This reflection on Rio+20 examines many of the major social institutions and how they fulfilled their functions during the United Nations Conference on Sustainable Development at Rio. The institutions are: 1. Nation-states as a collective. 2. Individual nation-states. 3. Vanguard institutions (some NGOs. 4. Action and convening NGOs. 5. Global media. 6. Governments of nation-states acting domestically 7. Individual governments in bilateral and multilateral situations. 8. Similar institutions in different countries acting together. 9. Businesses. 10. Global science. Each is considered within the assumptions of what the society expects them to deliver (in general, what is possible for them to deliver, and what they did deliver at Rio. In approaching Rio+20, our account differs considerably from much of the reportage by the mainstream media.

«Hay que argentinizar la Patagonia». Miradas sobre la Nación y la Ciudadanía en tiempos de cambio (1916-1930

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Ruffini, Martha

2011-12-01

Full Text Available The Goverment of Civic Radical Union (1916-1930 encourage politicals and socials transformations, that for the National territories could implyed a modification on its marginal politic. The expressions of the leadership supported this perception, but the concepts of Nation and citizenship were redefined as considering the Patagonia a place to argentinized. The argentinization was introduced as priority ,because of rural worker conflictivity,determinating the extension from politic rights to orders validity, security and social control.

El gobierno de la Unión Cívica Radical (1916-1930 alentó transformaciones políticas y sociales que para los Territorios Nacionales podían implicar la modificación de su marginalidad política. Las expresiones de la dirigencia avalaron esta percepción pero los conceptos de Nación y Ciudadanía fueron resignificados al pensar la Patagonia como espacio a «argentinizar». La argentinización del sur se presentó como prioridad debido a la conflictividad obrera-rural, condicionando la ampliación de los derechos políticos a la vigencia del orden, la seguridad y el control social.

Primer registro paleoparasitológico de Trichuris SP (nematoda, capilariidae en muestras asociadas a restos humanos del Holoceno tardío de Patagonia septentrional

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Fugassa, Martín H.

2009-01-01

Full Text Available En el marco de los estudios paleoepidemiológicos que se realizan en restos arqueológicos asignados a poblaciones de cazadores-recolectores de Patagonia, este trabajo presenta información novedosa acerca de la presencia de parásitos en muestras de sedimento de las cavidades pélvicas correspondientes a individuos que habitaron la costa norte de Patagonia durante el Holoceno Tardío. Fueron analizados 3 casos de diferente cronología y en dos de ellos, los de menor antigüedad relativa, los resultados fueron positivos para la presencia de Trichuris trichiura. Es interesante mencionar al respecto que para el período que involucra a los dos casos positivos, la información arqueológica registra un proceso de intensificación en el que se explota una mayor diversidad de fauna y se incrementan los artefactos de molienda en los sitios. Entre las posibles causas propuestas para este proceso se encuentran el aumento demográfico y/o el nucleamiento poblacional en espacios favorables que comienzan a saturarse, hecho consistente con la evidencia cultural obtenida al momento y con la presencia de Trichuris sp.

A Combined Observational and Modeling Approach to Study Modern Dust Transport from the Patagonia Desert to East Antarctica

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Gasso, S.; Stein, A.; Marino, F.; Castellano, E.; Udisti, R.; Ceratto, J.

2010-01-01

The understanding of present atmospheric transport processes from Southern Hemisphere (SH) landmasses to Antarctica can improve the interpretation of stratigraphic data in Antarctic ice cores. In addition, long range transport can deliver key nutrients normally not available to marine ecosystems in the Southern Ocean and may trigger or enhance primary productivity. However, there is a dearth of observational based studies of dust transport in the SH. This work aims to improve current understanding of dust transport in the SH by showing a characterization of two dust events originating in the Patagonia desert (south end of South America). The approach is based on a combined and complementary use of satellite retrievals (detectors MISR, MODIS, GLAS ,POLDER, OMI,), transport model simulation (HYSPLIT) and surface observations near the sources and aerosol measurements in Antarctica (Neumayer and Concordia sites). Satellite imagery and visibility observations confirm dust emission in a stretch of dry lakes along the coast of the Tierra del Fuego (TdF) island (approx.54deg S) and from the shores of the Colihue Huapi lake in Central Patagonia (approx.46deg S) in February 2005. Model simulations initialized by these observations reproduce the timing of an observed increase in dust concentration at the Concordia Station and some of the observed increases in atmospheric aerosol absorption (here used as a dust proxy) in the Neumayer station. The TdF sources were the largest contributors of dust at both sites. The transit times from TdF to the Neumayer and Concordia sites are 6-7 and 9-10 days respectively. Lidar observations and model outputs coincide in placing most of the dust cloud in the boundary layer and suggest significant de- position over the ocean immediately downwind. Boundary layer dust was detected as far as 1800 km from the source and approx.800 km north of the South Georgia Island over the central sub-Antarctic Atlantic Ocean. Although the analysis suggests the

First South American Agathis (Araucariaceae), Eocene of Patagonia.

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Wilf, Peter; Escapa, Ignacio H; Cúneo, N Rubén; Kooyman, Robert M; Johnson, Kirk R; Iglesias, Ari

2014-01-01

Agathis is an iconic genus of large, ecologically important, and economically valuable conifers that range over lowland to upper montane rainforests from New Zealand to Sumatra. Exploitation of its timber and copal has greatly reduced the genus's numbers. The early fossil record of Agathis comes entirely from Australia, often presumed to be its area of origin. Agathis has no previous record from South America. We describe abundant macrofossils of Agathis vegetative and reproductive organs, from early and middle Eocene rainforest paleofloras of Patagonia, Argentina. The leaves were formerly assigned to the New World cycad genus Zamia. Agathis zamunerae sp. nov. is the first South American occurrence and the most complete representation of Agathis in the fossil record. Its morphological features are fully consistent with the living genus. The most similar living species is A. lenticula, endemic to lower montane rainforests of northern Borneo. Agathis zamunerae sp. nov. demonstrates the presence of modern-aspect Agathis by 52.2 mya and vastly increases the early range and possible areas of origin of the genus. The revision from Zamia breaks another link between the Eocene and living floras of South America. Agathis was a dominant, keystone element of the Patagonian Eocene floras, alongside numerous other plant taxa that still associate with it in Australasia and Southeast Asia. Agathis extinction in South America was an integral part of the transformation of Patagonian biomes over millions of years, but the living species are disappearing from their ranges at a far greater rate.

Reptile and rodent parasites in raptor pellets in an archaeological context: the case of Epullán Chica (northwestern Patagonia, Argentina)

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Beltrame, María Ornela; Fernández, Fernando Julián; Sardella, Norma Haydeé

2015-07-01

Paleoparasitology is the study of parasite remains from archaeological and paleontological sites. Raptor pellets can be used as source for paleoparasitological information in archaeological sites. However, this zooarchaeological material has been scarcely studied. Epullán Chica (ECh) is an archaeological site in northwestern Patagonia. This cave yielded remains from more than 2000 years before present. The aim of this paper was to study the parasite remains found in owl pellets from the archaeological site ECh, and to discuss the paleoparasitological findings in an archaeological context. Twenty two raptor pellets were examined for parasites. The pellets were whole processed by rehydration in a 0.5% water solution of trisodium phosphate, followed by homogenization, filtered and processed by spontaneous sedimentation. Eight out of 22 bird pellets examined were positive for parasites from reptiles and rodents. Representatives of 12 parasite taxa were recorded; nine of this parasitic species were reported for the first time from ancient samples from Patagonia. This is the first time that pellets give evidences of ancient reptile parasites from archaeological contexts. It is noteworthy that Late Holocene hunter-gatherers of the upper Limay River basin, could have been exposed to some of these zoonotic parasites. Future paleoparasitological studies on owl pellets may reflect even more the parasitological diversity of all micromammal and reptile species presents in ancient times.

Revisión de la distribución de Hyalella Smith, 1874 (Crustacea, Amphipoda) en la Patagonia e islas adyacentes

OpenAIRE

De los Ríos-Escalante,Patricio; Mansilla,Andrés; Anderson,Christopher B

2012-01-01

Se realiza una revisión de las especies de anfípodos del género Hyalella en aguas continentales de la Patagonia, isla Tierra del Fuego, Reserva de la Biosfera de Cabo de Hornos e islas adyacentes (38-54°S). Esta zona austral presenta numerosos tipos de ambientes acuáticos continentales como lagos, humedales y arroyos, y las principales especies en ambientes bentónicos corresponden a anfípodos del género Hyalella. La bibliografía menciona la presencia de H. costera, H. chiloensis, H. falklande...

Is the prominent ericoid mycorrhizal fungus Rhizoscyphus ericae absent in the Southern Hemisphere’s Ericaceae? A case study on the diversity of root mycobionts in Gaultheria spp. from northwest Patagonia, Argentina

Czech Academy of Sciences Publication Activity Database

Brusone, M. C.; Fontenla, S. B.; Vohník, Martin

2015-01-01

Roč. 25, č. 1 (2015), s. 25-40 ISSN 0940-6360 R&D Projects: GA MŠk 7AMB12AR014 Institutional support: RVO:67985939 Keywords : ericoid mycorrhiza * Gaultheria * Patagonia Subject RIV: EF - Botanics Impact factor: 3.252, year: 2015

Condiciones productivas y exigencias de calidad en la fruticultura de la Patagonia argentina

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Belén Alvaro

2013-01-01

Full Text Available La producción alimentaria está regida, a partir de los años noventa, por requerimientos de calidad e inocuidad que modifican sustancialmente las condiciones productivas del eslabón primario, en el marco de una reestructuración del sistema agroalimentario mundial. El caso en estudio aborda la conformación social de la cadena frutícola localizada en el norte de la Patagonia argentina, donde estos requerimientos se formalizan, entre otros, en las buenas prácticas agrícolas, abordadas como dispositivos de control que interpelan y vuelven complejas las condiciones de reproducción social de los chacareros, como productores independientes en la cadena, con impactos en sus trayectorias vitales y productivas. Se consultaron fuentes secundarias, y se realizó el relevamiento primario de casos. Las conclusiones se inscriben en las tensiones entre configuraciones productivas locales y avances de los controles del capital concentrado.

O RIO CAPITAL IMAGINADO PELA CRÍTICA CINEMATOGRÁFICA: os casos de Rio Fantasia e Rio, 40 graus

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Eliska Altmann

Full Text Available No artigo, busca-se verificar como o Rio de Janeiro, “cidade-capital”, foi imaginado por críticos cinematográficos brasileiros. Por meio de críticas aos filmes Rio fantasia (1957, de Watson Macedo, e Rio, 40 graus (1955, de Nelson Pereira dos Santos, pretende-se entender como a então Capital Federal foi descrita e legitimada por agentes que formam julgamentos, quiçá, para a posteridade.

Origin and evolution of the Laguna Potrok Aike maar (Patagonia, Argentina)

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Gebhardt, A. C.; de Batist, M.; Niessen, F.; Anselmetti, F. S.; Ariztegui, D.; Ohlendorf, C.; Zolitschka, B.

2009-04-01

Laguna Potrok Aike, a maar lake in southern-most Patagonia, is located at about 110 m a.s.l. in the Pliocene to late Quaternary Pali Aike Volcanic Field (Santa Cruz, southern Patagonia, Argentina) at about 52°S and 70°W, some 20 km north of the Strait of Magellan and approximately 90 km west of the city of Rio Gallegos. The lake is almost circular and bowl-shaped with a 100 m deep, flat plain in its central part and an approximate diameter of 3.5 km. Steep slopes separate the central plain from the lake shoulder at about 35 m water depth. At present, strong winds permanently mix the entire water column. The closed lake basin contains a sub saline water body and has only episodic inflows with the most important episodic tributary situated on the western shore. Discharge is restricted to major snowmelt events. Laguna Potrok Aike is presently located at the boundary between the Southern Hemispheric Westerlies and the Antarctic Polar Front. The sedimentary regime is thus influenced by climatic and hydrologic conditions related to the Antarctic Circumpolar Current, the Southern Hemispheric Westerlies and sporadic outbreaks of Antarctic polar air masses. Previous studies demonstrated that closed lakes in southern South America are sensitive to variations in the evaporation/precipitation ratio and have experienced drastic lake level changes in the past causing for example the desiccation of the 75 m deep Lago Cardiel during the Late Glacial. Multiproxy environmental reconstruction of the last 16 ka documents that Laguna Potrok Aike is highly sensitive to climate change. Based on an Ar/Ar age determination, the phreatomagmatic tephra that is assumed to relate to the Potrok Aike maar eruption was formed around 770 ka. Thus Laguna Potrok Aike sediments contain almost 0.8 million years of climate history spanning several past glacial-interglacial cycles making it a unique archive for non-tropical and non-polar regions of the Southern Hemisphere. In particular, variations of

Environmental impact assessment, from Rio-92 to Rio+20 and beyond

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Luis E. Sánchez

2012-12-01

Full Text Available The 1992 Rio Earth Summit was of paramount importance in the consolidation and international dissemination of environmental impact assessment, officially recognized as a tool for informed decision-making towards sustainable development (Principle 17, Rio Declaration and for protection of biodiversity (Article 14, Convention on Biological Diversity. A significant development afterwards was the strengthening of strategic environmental assessment in the design of policies, plans and programs. Both forms of impact assessment can establish the necessary connections between one goal of the Rio+20 Conference - reaching an agreement on the transition to a green economy - and the underpinning decision making processes. Although the Rio+20 Summit has faced challenges to acknowledge its potential, impact assessment should be strengthened in support of both government and business decisions.La Cumbre de la Tierra de 1992 fue de la más grande importancia en la consolidación y diseminación de la evaluación de impacto ambiental, oficialmente reconocida como una herramienta para la toma de decisiones informada hacia el desarrollo sostenible (Principio 17, Declaración de Rio y para la protección de la biodiversidad (Artículo 14, Convención de la Diversidad Biológica. Un avanzo posterior importante fue el fortalecimiento de la evaluación ambiental estratégica en la preparación de políticas, planos y programas. Ambas formas de evaluación de impacto son capaces de establecer los necesarios vínculos entre un objetivo declarado de la Conferencia Rio+2- - llegar a un acuerdo sobre la transición para una economía verde - y los procesos decisorios subyacentes. Aunque la Cumbre Rio+20 tenga encontrado dificultades en reconocer su potencial, la evaluación de impactos debería ser fortalecida en soporte de decisiones gubernamentales y privadas.A Cúpula da Terra de 1992, no Rio de Janeiro, teve a maior importância na consolidação e dissemina

Rio+20 ou Rio-20?: crônica de um fracasso anunciado

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Roberto Pereira Guimarães

2012-12-01

Full Text Available Passadas quatro décadas da Conferência de Estocolmo sobre o Meio Ambiente Humano, e decorridos apenas alguns meses da Rio+20, parece apropriado analisar o caminho percorrido a partir de Rio-92 e os desafios, em grande parte frustrados, da conferência recém concluída no Rio de Janeiro. Para tais propósitos, são analisados os avanços e retrocessos da agenda global de desenvolvimento sustentável, do processo preparatório e dos resultados alcançados no Rio em Junho de 2012, como também das ameaças provocadas pela nova agenda de segurança estratégica após os eventos de 11 Setembro de 2001 e pela crise econômica e financeira que já dura praticamente uma década. O artigo conclui com as perspectivas da agenda internacional nos próximos anos.Pasadas cuatro décadas desde la Conferencia de Estocolmo sobre Medio Ambiente Humano, y transcorridos tan solo algunos meses de la Rio+20, pareciera apropiado analisar el camino percorrido a partir de la Rio-92 y los desafíos, en grande parte frustrados, de la conferencia recien concluída en Rio de Janeiro. Para tales propósitos, serán analisados los avances e retrocesos en la agenda global de desarrollo sustentable, en el proceso preparatorio y en los resultados alcanzados en Rio en Junho de 2012, como también de las amenazas provocadas por la nueva agenda de segurida estratégica luego de los eventos de 11 Setembro de 2001 y por la crisis económica y financiera que ya dura prácticamente una década. El artículo concluye con las perspectivas de la agenda internacional em los próximos anos.After four decades since the Stockholm Conference on the Human Environment and after just a few months of Rio+20, it seems appropriate to assess the path followed since Rio+92 and the challenges, mostly frustrated, posed by Rio+20 . For this purpose, it is analyzed the advances and shortcomings of the global agenda of sustainable development, of the preparatory process and the results achieved in Rio

Vigilando la Calidad del Agua de los Grandes Rios de la Nacion: El Programa NASQAN del Rio Grande (Rio Bravo del Norte)

Science.gov (United States)

Lurry, Dee L.; Reutter, David C.; Wells, Frank C.; Rivera, M.C.; Munoz, A.

1998-01-01

La Oficina del Estudio Geologico de los Estados Unidos (U.S. Geological Survey, 0 USGS) ha monitoreado la calidad del agua de la cuenca del Rio Grande (Rio Bravo del Norte) desde 1995 como parte de la rediseiiada Red Nacional para Contabilizar la Calidad del Agua de los Rios (National Stream Quality Accounting Network, o NASOAN) (Hooper and others, 1997). EI programa NASOAN fue diseiiado para caracterizar las concentraciones y el transporte de sedimento y constituyentes quimicos seleccionados, encontrados en los grandes rios de los Estados Unidos - incluyendo el Misisipi, el Colorado y el Columbia, ademas del Rio Grande. En estas cuatro cuencas, el USGS opera actualmente (1998) una red de 40 puntos de muestreo pertenecientes a NASOAN, con un enfasis en cuantificar el flujo en masa (la cantidad de material que pasa por la estacion, expresado en toneladas por dial para cada constituyente. Aplicacando un enfoque consistente, basado en la cuantificacion de flujos en la cuenca del Rio Grande, el programa NASOAN esta generando la informacion necesaria para identificar fuentes regionales de diversos contaminantes, incluyendo sustancias qui micas agricolas y trazas elementos en la cuenca. EI efecto de las grandes reservas en el Rio Grande se puede observar segun los flujos de constituyentes discurren a 10 largo del rio. EI analisis de los flujos de constituyentes a escala de la cuenca proveera los medios para evaluar la influencia de la actividad humana sobre las condiciones de calidad del agua del Rio Grande.

Timing of the deglaciation in southern Patagonia: Testing the applicability of K-Feldspar IRSL

DEFF Research Database (Denmark)

Blomdin, Robin; Murray, Andrew S.; Thomsen, Kristina Jørkov

2012-01-01

need evaluation against an absolute chronology. The aim of this project is to investigate the applicability of OSL dating to sediments from southern Patagonia; in particular, we examine the dating potential of K-feldspar IRSL signals. Samples were collected from landforms interpreted as being deposited...... to our individual dose estimates based on the over-dispersion (OD) observed in laboratory gamma dose recovery experiments (22% for small aliquots and 18% for single grains). Then the possible effects of incomplete bleaching and differential fading are examined. For our natural samples we observe...... environmental ODs between 30 and 130% and mean residual doses between ∼30 and 80 Gy. Minimum age models are used to identify the part of the dose population that is most likely to have been well-bleached and results from these models are compared. The models give ages that are consistent with each other...

High Resolution Land Surface Modeling over the NEF Basin in the Chilean Patagonia

Science.gov (United States)

Somos-Valenzuela, M. A.

2017-12-01

Stakeholders and policy makers perceive that water and climate change adaptation are among the most vulnerable issues that need to be addressed. Therefore, there is a need not only from the scientific community but also from the society to use integrated methodologies that link advances in climatology with hydrology to provide data that helps us to provide adaptation strategies. The Andes and the Chilean-Argentinean Patagonia have been steadily warming up to 0.5 Celsius degrees per decades at the same time that precipitation is decreasing by 10 to 12 % per decade. In the future is expected that these trends will continue which will have impacts in the annual water budget. The Chilean Patagonia has brought a lot of attention during last decade because two hydroelectric project seek to build dams in one of the most pristine environments in the world. Also, in the Baker River basin a series of Glacier Lakes Outburst Flood have occurred which is perceived as an undeniable consequence of the effects of climate change in the glacier system. Major attention is mainly situated in the impact of climate change in glaciers contribution to sea level rise, GLOF studies given the numerous supra glacier lakes that are forming, and the study of stream flow point observation. The objectives of this research are: 1) Study the historical trends of precipitation, temperature, land cover changes and streamflow available in the Baker Basin; 2) Use a couple glacier model with a land surface model to predict the evolution of glaciers and their effects in the water availability. To address these objectives, I will analyze trends in hydro meteorology observations and correlation with trends in Land Cover Changes. Use the WRF-hydro framework to generate data in a small watershed that will allow to calibrate a high resolution hydro glaciology model to understand the partition between glaciered and non-glaciered runoff. The parameters estimated in the small domain could have the potential to

Unravelling the collapse mechanisms at a Jurassic caldera of the Chon Aike silicic LIP in Southern Patagonia (47 deg. 15 'S, 71 deg. 40'W), Argentina

International Nuclear Information System (INIS)

Sruoga, P; Japas, S; Salani, F; Kleiman, L; Graffigna, M

2008-01-01

La Peligrosa Caldera is located at Sierra Colorada (47 0 15'S, 71 0 40' W) in the Chon-Aike silicic LIP. It represents an unique window to understand the eruptive mechanisms that prevailed throughout the ignimbritic flare-up in Southern Patagonia during middle to late Jurassic times. Key pieces of lithologic and structural evidences are taken into account to reconstruct the volcanic structure.

Unravelling the collapse mechanisms at a Jurassic caldera of the Chon Aike silicic LIP in Southern Patagonia (47° 15 'S, 71° 40'W), Argentina

Science.gov (United States)

Sruoga, P.; Japas, S.; Salani, F.; Kleiman, L.; Graffigna, M.

2008-10-01

La Peligrosa Caldera is located at Sierra Colorada (47° 15'S, 71° 40' W) in the Chon-Aike silicic LIP. It represents an unique window to understand the eruptive mechanisms that prevailed throughout the ignimbritic flare-up in Southern Patagonia during middle to late Jurassic times. Key pieces of lithologic and structural evidences are taken into account to reconstruct the volcanic structure.

Spatial distribution, feeding and length–mass relationships of Diamphipnopsis samali (Plecoptera, Diamphipnoidae in a North Patagonia Andean stream, Argentina

Directory of Open Access Journals (Sweden)

Guillermo H. OMAD

2015-01-01

Full Text Available RESUMEN. Fueron estudiados algunos aspectos de la biología y ecología (patrones de distribución espacial, hábitos alimenticios y relación largo-masa de una población de Diamphipnopsis samali en un arroyo de primer orden que atraviesa un bosque exótico de pino en el centro-norte de Patagonia (Chubut, Argentina. Dos series de muestreos fueron realizados durante períodos de aguas altas y aguas bajas. Toda la información fue tratada con ANOVAS de dos factores y efectos fijos para evaluar diferencias significativas. El análisis de las piezas bucales de D. samali indica que corresponden a un tipo intermedio entre el tipo carnívoro y herbívoro-detritívoro. El contenido estomacal muestra que esta especie se alimenta de hifas fúngicas y madera, aunque en los estadios tempranos se encuentran restos de insectos. No se hallaron diferencias significativas en la alimentación entre períodos de aguas altas y aguas bajas, sin embargo, existieron diferencias significativas entre la dieta de larvas grandes y pequeñas. Fue clara la preferencia por el sustrato tronco y cascada, y también significativamente diferente entre los tipos pozón y corredera. No hubo diferencias significativas en la elección de hábitat entre los períodos de aguas bajas y aguas altas. Esta especie endémica de Patagonia parece estar bien adaptada a la presencia de un bosque ripario exótico, utilizando los troncos caídos como alimento y refugio.

76 FR 80430 - Rio Tinto plc and Rio Tinto Limited; Notice of Application

Science.gov (United States)

2011-12-23

... plc and Rio Tinto Limited; Notice of Application December 19, 2011. AGENCY: Securities and Exchange Commission (``Commission''). ACTION: Notice of application under section 3(b)(2) and 45(a) of the Investment Company Act of 1940 (the ``Act''). SUMMARY: Summary of Application: Rio Tinto plc (``RTP'') and Rio Tinto...

Variation in the proximate composition and fatty acid profile recovered from Argentine hake (Merluccius hubbsi) waste from Patagonia

Energy Technology Data Exchange (ETDEWEB)

Cretton, M.; Rost, E.; Mazzuca-Sobczuk, T.; Mazzuca, M.

2016-07-01

The fish processing operations in Patagonia produce large amounts of waste. The main fishery resource in Argentina is the Argentine hake (Merluccius hubbsi). The ports of the province of Chubut (the most important of which are Puerto Madryn, Rawson and Comodoro Rivadavia), together with Caleta Paula Port (province of Santa Cruz), in the Argentine Patagonia, capture more than 82,000 tons of hake annualy, 80% of which are of M. hubbsi, which is mostly converted into fillets. From this capture, about 2,296 tons of liver would be available for the extraction of oil. To promote the recovery and industrial use of fish oil, in the present study, we determined the variation in the proximate composition and fatty acid profile of Argentine hake waste from the ports mentioned above at different catch times. Proximate composition was determined according of the Official Methods of Analysis (AOAC). Fatty acid profile was analyzed by gas chromatography of the fatty acid methyl esters (FAMEs). A standard mixture of FAMEs was run under identical conditions to identify the compounds on the basis of their retention times. Fatty acids were quantified using heptadecanoic acid (C17:0) as internal standard. The highest lipid recovery (27.0 to 41.8% of total lipids) was obtained from the liver fraction. Palmitic acid (C16:0), oleic acid (18:1 n9), docosahexaenoic acid (22:6 n3), eicosapentaenoic acid (20:5 n3) and palmitoleic acid (16:1) were the main constituents. Protein levels in viscera without livers (V-L) were higher than those in the liver. The extraction of marine fish oil and the production of fish offal meal from waste from fish factories would contribute to the sustainability of the regional industry, because it would also decrease the volume of waste, with benefits to the environment. (Author)

Programa de controle do tabagismo do hospital universitário Cassiano Antônio de Moraes: perfil de usuários e funcionários

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Lorena ALBERTASSE

2013-09-01

Full Text Available funcionários do Hospital Universitário Cassiano Antônio de Moraes, quanto a aspectos socioeconômicos e tabagísticos. Metodologia: Trata-se de um estudo descritivo e exploratório, conduzido sobre abordagem quantitativa. Resultados: Entre os usuários do serviço, 19,2% são fumantes e 24% ex-fumante. A faixa etária em que mais se fuma foi a de 20-39 anos (8,5%. 39,2% dos usuários fumantes possuem o Ensino Fundamental Incompleto e renda de até 2 salários mínimos (41,3%. A quantidade em anos que se fuma é maior naqueles que fumam há mais de 10 anos (42,3%. Entre os funcionários o número de fumantes foi de 12 (12,2%, sendo que 5 (41,6% fumam há mais de 20 anos; 66,7% tinham o Ensino Médio e 67,6% recebiam renda de 2-5 salários mínimos. Nos dois grupos estudados foi elevada à prevalência de fumantes que referiu o desejo de cessar o fumo (74% usuários, 83,3% funcionários, no entanto apenas uma pequena parcela já se submeteu a algum tipo de tratamento.

Nos caminhos do pai: influências de Francisco Palmério na formação do escritor Mário Palmério

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André Azevedo da Fonseca

2011-12-01

Full Text Available O artigo traça uma biografia de Francisco Palmério (1867-1947, pai do escritor mineiro Mário Palmério (1916-1996 – autor de Vila dos Confins (1956 e Chapadão do Bugre (1965. Através de fontes primárias e análise documental, a pesquisa desenvolve interpretações sobre as influências paternas de caráter moral, cultural, intelectual e profissional que marcaram a primeira geração da família Palmério no Brasil e, particularmente, condicionaram as experiências que mais tarde seriam ressignificadas na obra literária e na trajetória pessoal de Mário Palmério. Notamos que as permanentes viagens a trabalho do pai e as suas diversas atividades profissionais favoreceram uma consciência familiar das particularidades da região. Essa experiência favoreceu a criação de vínculos econômicos, políticos e afetivos com a cultura regional e estimulou nos filhos um profundo conhecimento histórico e geográfico do Oeste mineiro. Além disso, o pai parece ter exercido uma profunda influência sobre os filhos no que diz respeito ao gosto pela política regional. O artigo desenvolve a hipótese de que todas essas experiências foram elementos presentes na formação de Mário Palmério e, mais tarde, apareceriam de modo explícito em sua literatura marcada pela descrição da natureza, do cotidiano e das intrigas políticas regionalistas. Palavras-chave: Regionalismo; Literatura regionalista; Literatura mineira; Mário Palmério; Vila dos Confins; Chapadão do Bugre.

Application of DNA forensic techniques for identifying poached guanacos (Lama guanicoe) in Chilean Patagonia*.

Science.gov (United States)

Marín, Juan C; Saucedo, Cristian E; Corti, Paulo; González, Benito A

2009-09-01

Guanaco (Lama guanicoe) is a protected and widely distributed ungulate in South America. A poacher, after killing guanacos in Valle Chacabuco, Chilean Patagonia, transported and stored the meat. Samples were retrieved by local police but the suspect argued that the meat was from a horse. Mitochondrial cytochrome b gene (774 pb), 15 loci microsatellites, and SRY gene were used to identify the species, number of animals and their population origin, and the sex of the animals, respectively. Analysis revealed that the samples came from a female (absence of SRY gene) Patagonian guanaco (assignment probability between 0.0075 and 0.0282), and clearly distinguishing it from sympatric ungulates (E-value = 0). Based on the evidence obtained in the field in addition to forensic data, the suspect was convicted of poaching and illegally carrying fire arms. This is the first report of molecular tools being used in forensic investigations of Chilean wildlife indicating its promising future application in guanaco management and conservation.

The BDS iGMAS RIOS station at Observatório Nacional, Rio de Janeiro

Science.gov (United States)

Humberto Andrei, Alexandre; Song, Shuli; Junqueira, Selma; Beauvalet, Laurene

2016-07-01

GNSS navigation satellites are currently being developed by all major players in the science and technology scene, to compete with the GPS system. Because their applications span many different areas, from traffic and cargo control, to geodesy and seismic monitoring, it is required to assess the coherence between the different constellations. BDS is the GNSS system currently developed in China. Its first generation of satellites consisted of 3 geostationnary satellites allowing geolocalisation in China only. In addition to these satellites, other satellites have been launched in geostationnary and geosynchronous orbits, as well as satellites orbiting with a classical GNSS semi-major axis. With these additions, the BDS system possesses 19 operating satellites, and though the system is mostly efficient for geolocalisation in Asia, the satellites are also visible in other parts of the globe. In parallel to the development of the BDS constellation, China has launched the iGMAS (International GNSS Monitoring and Assessment Service) project to develop a global tracking network of multi-GNSS geodetic receivers. One of the goals of this project is to evaluate the efficiency of the BDS constellation as well as the efficiency of the receivers developed by the Chinese laboratories. As part of the Brazilian program COSBAN leaded by the Foreign Affairs Ministry to foster up the science and technology partnership with China, materialized by the collaboration between the Shanghai Astronomical Observatory/CAS and the Observatório Nacional/MCTI, in Rio de Janeiro. Through it the RIOS-iGMAS station was installed at Observatório Nacional, where the RJEP GNSS station already operates as part of the Brazilian reference system. Thus at the Observatório Nacional can be observed satellites from any constellation with both systems of reception, leading to a direct, efficient way to compare the results obtained for each network. In this communication we focus on the determination of the

Gamma irradiation as a phytosanitary treatment for fresh pome fruits produced in Patagonia

Science.gov (United States)

Pérez, J.; Lires, C.; Horak, C.; Pawlak, E.; Docters, A.; Kairiyama, E.

2009-07-01

Argentina produces 1.8 million tons/year of apples ( Malus domestica L.) and pears ( Pyrus communis L.) in the Patagonia region. Cydia pomonella, codling moth, and Grapholita molesta, Oriental fruit moth, ( Lepidoptera: Tortricidae) are quarantine pests in pome fruits. Irradiation is a promising phytosanitary treatment because a dose of 200 Gy completely prevents pest adult emergence. A pilot irradiation process of commercially packaged 'Red Delicious' apples and 'Packham's Triumph' pears was performed in an irradiation facility with a Cobalt 60 source. Quality analyses were carried out at 0, 2, 4, 6 and 8 months of storage (1 °C, RH 99%) to evaluate fruit tolerance at 200, 400 and 800 Gy. Irradiation at 200 and 400 Gy had no undesirable effects on fruit quality (pulp firmness, external colour, soluble solids content (SSC), titratable acidity (TA) and sensory evaluations). Irradiation of 'Red Delicious' apples and 'Packham's Triumph' pears can be applied as a commercial quarantine treatment with a minimum absorbed dose of 200 Gy (to control codling moth and Oriental fruit moth) and <800 Gy (according to quality results).

Fouling community dominated by Metridium senile (Cnidaria: Anthozoa: Actiniaria in Bahía San Julián (southern Patagonia, Argentina

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Juan Pablo Martin

2015-06-01

Full Text Available The objective of this study is to provide information about a harbour-fouling community dominated by Metridium senile in southern Patagonia. Several steel tubes from the wharf of Puerto San Julián were extracted to perform repair tasks, allowing the attached benthic community to be studied. Sampling was conducted at three levels: lower intertidal, 3-4 m depth and 6-7 m depth. In the lower intertidal, M. senile had a relative abundance of 43%, the most abundant accompanying species being Perumytilus purpuratus, Mytilus edulis platensis and Aulacomya atra atra. At subtidal level, the anemone showed relative abundances of 64% and 65%, and was accompanied by Monocorophium insidiosum at 3-4 m depth and by polychaetes of families Sabellidae and Syllidae at 6-7 m at depth. In the lower intertidal, epibiosis was more frequent on P. purpuratus, A. atra atra and M. edulis platensis, while in the subtidal, the richness of substrate-organisms increased significantly and the anemone was fixed to A. atra atra, M. edulis platensis, Paramolgula gregaria, Crepipatella dilatata, Austromegabalanus psittacus, Hiatella arctica, Polyzoa opuntia, Pyura sp. and Sabellidae tubes. The ability of M. senile to settle on many different organisms, along with other strategies, makes it a colonizer able to displace other species that could compete with it for substratum. Given the cosmopolitan nature of M. senile, the fact that this species has not been previously reported in the coastal zone of the region, and the results of our study, we discuss the possibility that this sea anemone is an invasive alien species in southern Patagonia, or at least a cryptogenic species.

Abiquiu Dam and Reservoir, Rio Grande Basin, Rio Chama, New Mexico. Embankment Criteria and Performance Report.

Science.gov (United States)

1987-04-01

EMBANKMENT CRITERIA AND PERFORMANCE REPORT PERTINENT DATA 1. General Data. LOCATION: Rio Arriba County, New Mexico, on the Rio Chama at river mile 33. PURPOSE...is located across the Rio Chama, approximately 30 miles upstream from its confluence with the Rio Grande, in Rio Arriba County, New Mexico. The dam is...6600- 4 i ’. 6600 65060- -60 6600- a + v6500s-go FA**v~w -6500 6300- 60 - ~ ~ ~ wo Ala filll------------------ EMBNKEN SECTION62 *LDN WOR SAFEL VAIE

Proyecto de Plaza-Embarcadero en Caleta Tortel, Región de Aysén, Patagonia de Chile / Embarcadero Plaza-Project in Tortel, Region of Aysen Patagonia, Chile.

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Medel Santibáñez, Paulina Andrea

2007-06-01

Full Text Available El proyecto de Título de Arquitectura, 2007, que se presenta tiene como objetivo central dar respuesta a necesidades reales, preservando y cuidando del medio local, tanto natural como sociocultural, dentro de la dinámica actual de cambios y apertura. Se reconoce los atributos y potencialidades propios de Caleta Tortel para preservar su identidad cultural y patrimonial a través de la consideración de la relación con su entorno, específicamente, reconociendo el vínculo entre la localidad y el mar como medio elemental que le da origen y permite su desarrollo. La “Plaza-Embarcadero" en Caleta Tortel es un conjunto de carácter público, de escala comunal y con un programa comunitario integrador y abierto para la interacción diaria y directa de los habitantes y visitantes.This work leading to the professional degree in architecture is an answer to certain needs of Caleta Tortel in the Chilean Patagonia, adapting itself to the local environment –social and natural- and to the changes of globalization. The core idea of this project is to preserve the spatial and economic link between the town and the sea. The proposed wharf is a meeting point for the neighbours and tourists.

The role of natural mineral particles collected at one site in Patagonia as immersion freezing ice nuclei

Science.gov (United States)

López, María Laura; Borgnino, Laura; Ávila, Eldo E.

2018-05-01

This work studies the role of mineral particles collected in the region of Patagonia (Neuquén, Argentina) as ice nuclei particles (INPs) by immersion freezing mode. The particle immersion-freezing ability was analyzed under laboratory conditions by using an established drop-freezing technique. Mineralogical composition was characterized by using X-ray diffraction and electron micro probe analysis. Dynamic light scattering was used to determine the grain size distribution of particles, while the N2 adsorption and methylene blue adsorption methods were applied to determine their specific surface area. Water droplets of different volumes containing different concentrations of particles were cooled until droplets were frozen. For all the analyzed drop volumes, an increase in the freezing temperature of the drops was observed with increasing dust concentration. In the same way, the freezing temperature increased when the drop volume was increased at constant dust concentration. Both behaviors were linked to the availability of active sites in the particles. A plateau in the freezing temperature was observed at high suspension concentration for all the drop volumes. This plateau was related to the aggregation of the particles when the suspension concentration was increased and to the consequent decrease in the number of active sites. The active sites per unit of surface area were calculated and reported. For the studied range of temperature, results are in agreement with those reported for different sites and particles. From the chemical and morphological analysis of the particle components and the results obtained from the literature, it was concluded that even though montmorillonite was the main mineral in the collected sample, the accessory minerals deserve to be analyzed in detail in order to know if they could be responsible for the ability of the collected soil particles to act as INPs. Considering that the region of Patagonia has been identified as an important

Depositional Environments of Late Danian Plant Localities: Chubut Provice, Patagonia, Argentina

Science.gov (United States)

Comer, E.; Slingerland, R. L.; Wilf, P.

2010-12-01

Diverse, well-preserved macroflora are observed within Cretaceous and Paleocene sediments of Chubut Province, Patagonia, Argentina. These macroflora are the most well preserved early Paleocene flora from Gondwana and add new insight into the diversity and environments of that epoch. Two major sites of fossil preservation, Palacio de los Loros and Parque Provincial Ormachea, sit near the top of the Late Danian (65.5-61.7 Ma) Salamanca Formation. Understanding the depositional history of the Salamanca is important in characterizing paleoenvironments in which these flora lived and relating these Patagonian macroflora to concurrent Paleocene flora within the Gondwanan supercontinent. During a two week field season, twenty stratigraphic sections were measured along the outcrop belt at Palacio de los Loros and Ormachea Park as well as two minor sites; Las Flores, and Rancho Grande. Photo mosaics, laser ranger data, and stratigraphic columns were merged with elevated geologic maps and imported into Fledermaus to generate a 3-D visualization of facies relationships. Rock samples were also collected and will be thin sectioned and analyzed for petrography and grain size. The Salamanca Fm. consists of 7 facies, listed here in stratigraphically ascending order: 1)Transgressive sands, 2)Wispy-bedded claystone, 3)Banco Verde, 4)White Cross bedded sandstone, 5)Accretion set siltstone, 6)Transitional silty claystone and 7)Banco Negro. Based on these facies, the Salamanca Fm. is interpreted as a marine-shelf to brackish, tide-dominated, estuarine deposit. The base of the Salamanca Fm. rests on an unconformity representing a marine flooding surface and lower sections of the Salamanca, facies 1 and 2, contain abundant glauconite and fossils indicative of a marine shelf environment. These facies give way upwards to bi-directional trough cross bedded sandstones interspersed with flaser bedded sandy siltstones (facies 3 and 4) indicating a less marine estuary with strong flow regimes

Checklist of the Discomycetes (Fungi of Patagonia, Tierra del Fuego and adjacent antarctic areas

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Irma J. Gamundí

2004-01-01

Full Text Available La información brindada en este catálogo consiste en registrar las especies de hongos pertenecientes a los órdenes Cyttariales, Helotiales, Ostropales, Pezizales, Rhytismatales y Thelebolales (Discomycetes coleccionadas en Patagonia, Tierra del Fuego y áreas adyacentes antárticas (Patagonia. Además datos sobre sus organismos asociados fueron localizados, resumidos, validados y editados. Las fuentes de información fueron las exsiccatae depositadas en colecciones de Argentina y otros países y de las publicaciones listadas en la bibliografía. Otros registros derivaron de observaciones de campo sobre material fresco y colecciones de referencia. La información fue acumulada en un sistema computarizado relacional de datos taxonómicos, nomenclaturales, bibliográficos, de distribución geográfica y de observaciones biológicas. Este sistema permite la acumulación de datos paralelos en diferentes idiomas, y distingue la información original de la opinión corriente de lo que puede significar esa información. En la Biological Records Database, 5029 registros fueron creados para observaciones sobre la ocurrencia temporal y espacial de los organismos vivos de la región. De éstos, 2613 corresponden a registros de colecciones de Discomycetes de la Patagonia y Tierra del Fuego, con la siguiente distribución: 1854 para a la Argentina, 687 para Chile y 72 para áreas adyacentes antárticas. Excluyendo los sinónimos, los Discomycetes están representados por 361 especies y taxones subespecíficos (160 géneros, 22 familias y 7 órdenes. Los registros remanentes fueron de organismos asociados con los Discomycetes: 163 animales (8 especies, 8 géneros, 6 familias y 5 órdenes; 2 Chromista; 223 hongos (52 especies, 54 géneros, 26 familias y 13 ódenes; 2028 plantas (159 especies, 122 géneros, 59 familias y 39 órdenes. Cada uno de estos taxones (y cada sinónimo conocido está representado por un registro separado en la Base de Datos Taxon

Variation in the proximate composition and fatty acid profile recovered from Argentine hake (Merluccius hubbsi waste from Patagonia

Directory of Open Access Journals (Sweden)

Cretton, M.

2016-03-01

Full Text Available The fish processing operations in Patagonia produce large amounts of waste. The main fishery resource in Argentina is the Argentine hake (Merluccius hubbsi. The ports of the province of Chubut (the most important of which are Puerto Madryn, Rawson and Comodoro Rivadavia, together with Caleta Paula Port (province of Santa Cruz, in the Argentine Patagonia, capture more than 82,000 tons of hake annualy, 80% of which are of M. hubbsi, which is mostly converted into fillets. From this capture, about 2,296 tons of liver would be available for the extraction of oil. To promote the recovery and industrial use of fish oil, in the present study, we determined the variation in the proximate composition and fatty acid profile of Argentine hake waste from the ports mentioned above at different catch times. Proximate composition was determined according of the Official Methods of Analysis (AOAC. Fatty acid profile was analyzed by gas chromatography of the fatty acid methyl esters (FAMEs. A standard mixture of FAMEs was run under identical conditions to identify the compounds on the basis of their retention times. Fatty acids were quantified using heptadecanoic acid (C17:0 as internal standard. The highest lipid recovery (27.0 to 41.8% of total lipids was obtained from the liver fraction. Palmitic acid (C16:0, oleic acid (18:1 n9, docosahexaenoic acid (22:6 n3, eicosapentaenoic acid (20:5 n3 and palmitoleic acid (16:1 were the main constituents. Protein levels in viscera without livers (V-L were higher than those in the liver. The extraction of marine fish oil and the production of fish offal meal from waste from fish factories would contribute to the sustainability of the regional industry, because it would also decrease the volume of waste, with benefits to the environment.El procesamiento de pescados en Patagonia produce gran cantidad de residuos. El recurso de pesca más importante en la Argentina es la merluza argentina (Merluccius hubbsi. En Patagonia

Spatial distribution of volcanic ash deposits of 2011 Puyehue-Cordón Caulle eruption in Patagonia as measured by a perturbation in NDVI temporal dynamics

Science.gov (United States)

Easdale, M. H.; Bruzzone, O.

2018-03-01

Volcanic ash fallout is a recurrent environmental disturbance in forests, arid and semi-arid rangelands of Patagonia, South America. The ash deposits over large areas are responsible for several impacts on ecological processes, agricultural production and health of local communities. Public policy decision making needs monitoring information of the affected areas by ash fallout, in order to better orient social, economic and productive aids. The aim of this study was to analyze the spatial distribution of volcanic ash deposits from the eruption of Puyehue-Cordón Caulle in 2011, by identifying a sudden change in the Normalized Difference Vegetation Index (NDVI) temporal dynamics, defined as a perturbation located in the time series. We applied a sparse-wavelet transform using the Basis Pursuit algorithm to NDVI time series obtained from the Moderate Resolution Image Spectroradiometer (MODIS) sensor, to identify perturbations at a pixel level. The spatial distribution of the perturbation promoted by ash deposits in Patagonia was successfully identified and characterized by means of a perturbation in NDVI temporal dynamics. Results are encouraging for the future development of a new platform, in combination with data from forecasting models and tracking of ash cloud trajectories and dispersion, to inform stakeholders to mitigate impact of volcanic ash on agricultural production and to orient public intervention strategies after a volcanic eruption followed by ash fallout over a wide region.

DIREITO AGRÁRIO E O TRATAMENTO DOS CONTRATOS AGRÁRIOS ATÍPICOS

OpenAIRE

Fabrício Pinto Weiblen; Marcelo Scherer da Silva; Tarso Wayhs Tech; José Fernando Lutz Coelho

2012-01-01

Aborda a necessidade de um tratamento adequado e diferenciado aos contratos agrários atípicos em face das complexas relações que se desenvolvem no meio rural atualmente. Apresenta ainda uma visão crítica a respeito das características e aplicabilidade da legislação agrária no cenário jurídico e propõe alternativas com o objetivo de uma prestação mais eficiente do Direito Agrário na área contratual.

Paleoecología: el uso de los quironómidos fósiles (Diptera: Chironomidae en reconstrucciones paleoambientales durante el Cuaternario en la Patagonia Paleoecology: the use of fossil chironomids (Diptera: Chironomidae for paleoenvironmental reconstructions in Patagonia

Directory of Open Access Journals (Sweden)

Julieta Massaferro

2009-06-01

Full Text Available Entre los indicadores biológicos lacustres más utilizados en las reconstrucciones ambientales, se encuentran el polen, los ostrácodos y las diatomeas, y entre los insectos, los coleópteros y los quironómidos. Este grupo ha cobrado gran importancia en los últimos tiempos, debido a los resultados prometedores que se han obtenido en reconstrucciones climáticas realizadas en América del Norte y Europa. En América del Sur, el uso de los quironómidos fósiles en estudios cuaternarios es relativamente limitado, principalmente por su escaso conocimiento taxonómico regional. La mayor parte de estos estudios fueron realizados en lagos glaciares patagónicos de Argentina y Chile. Las larvas de quironómidos constituyen una valiosa herramienta paleolimnológica, por ser un grupo de organismos altamente sensible a cambios ambientales, tanto naturales como artificiales. Además, es un grupo de insectos ampliamente distribuido y con una abundancia y diversidad relativamente altas. Sus cápsulas cefálicas se preservan en los sedimentos lacustres y poseen caracteres importantes que permiten identificar géneros y muchas veces especies. El estudio de los ensambles de quironómidos en sedimentos lacustres puede ser utilizado con distintos objetivos, por ejemplo, para estudios de eutrofización, ya que responden rápidamente a cambios en la concentración de nutrientes, materia orgánica y otros elementos, como metales pesados. No obstante, uno de los potenciales más importantes de este grupo de insectos es su sensibilidad a los cambios de temperatura, por este motivo, la aplicación más importante de su estudio en sedimentos se centra en las reconstrucciones climáticas. Esta contribución es una síntesis de los resultados de los trabajos publicados en la Patagonia argentina y chilena, sobre la base del uso de los quironómidos fósiles en reconstrucciones paleoambientales.Pollen, ostracods, diatoms and insects such as beetles and chironomids are

The sea anemone Bunodactis octoradiata (Anthozoa: Actiniaria from southern Patagonia: morphological study and new records

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Agustín Garese

2014-10-01

Full Text Available Bunodactis Verril, 1899 comprises at present 19 nominal species of sea anemones. The validity of the genus is under discussion. The description of the species, Bunodactis octoradiata Carlgren, 1899, is insufficient for reliable identification, and although subsequent works have provided additional information on the species, its description still needs to be complemented. Herein we describe B. octoradiata based on histological sections of the internal anatomy, and give a complete and detailed description of the external anatomy. The cnidom is composed of spirocysts, basitrichs and microbasic p-mastigophores; their distribution in the organism, sizes and relative abundances are provided. The presence of zooxanthellae is reported for the first time. Bunodactis octoradiata is distributed in groups that vary from 5.6 to 45 ind./m² in the field. Additionally, our data extends the distribution of the species along the coast of southern Patagonia (47°44'36"-49°15'13"S and 65°50'26"-67°39'45"W.

Unravelling the collapse mechanisms at a Jurassic caldera of the Chon Aike silicic LIP in Southern Patagonia (47 deg. 15 'S, 71 deg. 40'W), Argentina

Energy Technology Data Exchange (ETDEWEB)

Sruoga, P [CONICET-SEGEMAR. Av. J. A. Roca 651. Buenos Aires (Argentina); Japas, S; Salani, F [CONICET-UBA. Depto. Cs. Geologicas, Pabellon II, Ciudad Universitaria, C1428EHA, Buenos Aires (Argentina); Kleiman, L [Gerencia de Exploration de Materias Primas, Comision Nacional de EnergIa Atomica, Avda. del Libertador 8250, 1419, Buenos Aires (Argentina); Graffigna, M [Universidad Nacional de San Juan (Argentina)], E-mail: patysruoga@yahoo.com.ar, E-mail: msjapas@gl.fcen.uba.ar, E-mail: fms@gl.fcen.uba.ar, E-mail: kleiman@cae.cnea.gov.ar

2008-10-01

La Peligrosa Caldera is located at Sierra Colorada (47{sup 0} 15'S, 71{sup 0} 40' W) in the Chon-Aike silicic LIP. It represents an unique window to understand the eruptive mechanisms that prevailed throughout the ignimbritic flare-up in Southern Patagonia during middle to late Jurassic times. Key pieces of lithologic and structural evidences are taken into account to reconstruct the volcanic structure.

Carcinoma inflamatório mamário canino.

OpenAIRE

Gomes, Cristiano; Voll, Juliana; Ferreira, Kelly; Ferreira, Rafael Rodrigues; Oliveira, Luciana Oliveira de; Contesini, Emerson Antônio; Oliveira, Rosemari Teresinha de

2006-01-01

O carcinoma inflamatório mamário é um carcinoma anaplásico com características clínicas e histopatológicas como crescimento rápido, envolvimento difuso, eritema, calor e dor nas mamas, edema nos membros posteriores, extensa infiltração de células inflamatórias, células epiteliais malignas nos linfonodos regionais apresentando um péssimo prognóstico. O cão é a única espécie animal em que esta neoplasia ocorre espontaneamente, entretanto apresenta uma incidência bastante rara tanto em humanos q...

Acesso a ambulatório pediátrico de um hospital universitário

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Selma C. Franco

1998-08-01

Full Text Available INTRODUÇÃO: No Brasil verifica-se um descompasso entre o aumento das necessidades de atenção à saúde e de sua oferta. O Sistema Único de Saúde, cujas deretrizes preconizam a atenção universal e eqüânime, determina a relevância desta temática dentro do campo da avaliação dos serviços de saúde. Assim, foram estudados dois ambulatórios de pediatria de um hospital universitário, um geral e outro de uma subespecialiadade (pneumologia, comparando os usuários quanto ao acesso. MÉTODO: Foram aplicados 221 questionários entre clientes de ambos os ambulatórios de pediatria com o objetivo de se estudar e comparar variáveis socioeconômicas, procedência, acesso aos referidos ambulatórios e outros serviços de saúde. RESULTADOS: Evidenciou-se grande dificuldade de locomoção dos pacientes, a maioria dos quais são encaminhados por serviços de saúde locais. Dos pacientes atendidos 40% não receberam nenhum atendimento anteriormente à sua chegada ao hospital, fato que decorre principalmente de seu baixo nível socioeconômico, que os torna dependentes exclusivamente dos serviços públicos de saúde. A comparação entre os dois ambulatórios mostra que os pacientes do ambulatório de especialidade têm melhor nível socioeconômico e são menos dependentes dos serviços públicos, configurando desta forma uma situação de ineqüidade. CONCLUSÕES: É apontado o melhor nível socioeconômico dos usuários da especialidade bem como questões organizacionais do próprio serviço como os responsáveis pela iniqüidade verificada.

Ovários policísticos: critérios hemodinâmicos

OpenAIRE

Ávila,Márcio Augusto Pinto de; Murta,Carlos Geraldo Viana

2001-01-01

O advento da ultra-sonografia endovaginal de alta resolução abriu novas áreas de pesquisa nos ovários policísticos. O conhecimento da hemodinâmica ovariana é fundamental para o entendimento do comportamento fisiopatológico dos ovários policísticos. Os autores tecem considerações sobre a possibilidade da utilização do Doppler colorido na melhor definição dos ovários policísticos. Os dados sugerem que o aumento da vascularidade e a diminuição da resistência dos vasos do estroma ovariano, assim ...

Spatial dynamics of Fabiana imbricata shrublands in northwestern Patagonia in relation to natural fires

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L. Ghermandi

2010-05-01

Full Text Available Fire is a critical disturbance in the structuring and functioning of most Mediterranean ecosystems. In northwestern Patagonia, vegetation patterns are strongly influenced by fire and environmental heterogeneity. Dendroecology, together with satellite imagery and GIS, have been demonstrated to be useful tools in studies that relate to fire effects with patches, patterns and species dynamics at landscape scale. Such studies can be approached from landscape ecology, which has evolved in the last years supported by the development of remote sensing and GIS technologies. This study evaluates the spatial dynamic of F. imbricata in response to fire using remote sensing, GIS and dendrochronology techniques, at landscape scale. Two sites were evaluated and one of them was affected by fire in the year 1999. The digital processing images (using the NBR spectral index and the dendroecological analysis verified this. A fire, occurring in 1978, was also detected by the analysis of F. imbricata growth rings. The relation between F. imbricata shrubland dynamics and spatial configuration with fire, land topography and hydrography was established in the study area.

A Middle Jurassic heterodontosaurid dinosaur from Patagonia and the evolution of heterodontosaurids

Science.gov (United States)

Pol, Diego; Rauhut, Oliver W. M.; Becerra, Marcos

2011-05-01

Heterodontosauridae is a morphologically divergent group of dinosaurs that has recently been interpreted as one of the most basal clades of Ornithischia. Heterodontosaurid remains were previously known from the Early Jurassic of southern Africa, but recent discoveries and studies have significantly increased the geographical and temporal range for this clade. Here, we report a new ornithischian dinosaur from the Middle Jurassic Cañadón Asfalto Formation in central Patagonia, Argentina. This new taxon, Manidens condorensis gen. et sp. nov., includes well-preserved craniomandibular and postcranial remains and represents the only diagnostic ornithischian specimen yet discovered in the Jurassic of South America so far. Derived features of its anatomy indicate that Manidens belongs to Heterodontosauridae, as the sister taxon of Heterodontosaurus and other South African heterodontosaurids. The presence of posterior dentary teeth with high crowns but lacking extensive wear facets in Manidens suggests that this form represents an intermediate stage in the development of the remarkable adaptations to herbivory described for Heterodontosaurus. The dentition of Manidens condorensis also has autapomorphies, such as asymmetrically arranged denticles in posterior teeth and a mesially projected denticle in the posteriormost teeth. At an estimated total length of 60-75 cm, Manidens furthermore confirms the small size of basal heterodontosaurids.

Inter-subjectivity and Domestication in the Making of a Global Region: Territorialization of Salmon in the Chilean Patagonia

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Gustavo Blanco Wells

2016-01-01

Full Text Available This article examines transformations in the Chilean Patagonia, a region that has become a world leader in Salmon production for global markets. Employing ethnographic methods, this study examines the possibilities of considering inter-subjectivities in the processes of conforming important regions in the global production of foods in contrast to some perspectives that emphasize inter-objectivity in analyzing human and non-human relations. In a complex and globalized world, assembly theory permits us to understand how forms of bio-power stimulate regional transformations that then generate new relationships between life, agency and nature. The analysis focuses on experiments, encounters and affects, decentering conventional perspectives about the domestication of species, regional development and food production. It opens a debate about the potentialities and limits of non-lineal interpretations of reality.

UNA CONCEPTUALIZACIÓN ACERCA DE LA CRONOLOGÍA DE LAS ESTACIONES ENTRE LOS TEHUELCHES DEL EXTREMO SUR DE PATAGONIA

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Fabián Arias

2006-12-01

Full Text Available El presente trabajo intenta repasar un conjunto de categorías lingüísticas por medio de las cuales los tehuelches de la Patagonia austral significaron distintos ciclos cronológicos que se sucedían en el transcurso del año. Estos períodos remitían a fenómenos de índole natural que afectaron la cotidianeidad de las tolderías y determinaron, durante mucho tiempo, las condiciones en las que se organizó el poblamiento regional. Son justamente esas circunstancias las que se van a ver cada vez más intermediadas a partir de la incorporación del caballo, sucedida en el extremo sur, hacia la mitad del siglo XVIII.

Holocene Dynamics of Temperate Rainforests in West-Central Patagonia

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Virginia Iglesias

2018-01-01

Full Text Available Analyses of long-term ecosystem dynamics offer insights into the conditions that have led to stability vs. rapid change in the past and the importance of disturbance in regulating community composition. In this study, we (1 used lithology, pollen, and charcoal data from Mallín Casanova (47°S to reconstruct the wetland, vegetation, and fire history of west-central Patagonia; and (2 compared the records with independent paleoenvironmental and archeological information to assess the effects of past climate and human activity on ecosystem dynamics. Pollen data indicate that Nothofagus-Pilgerodendron forests were established by 9,000 cal yr BP. Although the biodiversity of the understory increased between 8,480 and 5,630 cal yr BP, forests remained relatively unchanged from 9,000 to 2,000 cal yr BP. The charcoal record registers high fire-episode frequency in the early Holocene followed by low biomass burning between 6,500 and 2,000 cal yr BP. Covarying trends in charcoal, bog development, and Neoglacial advances suggest that climate was the primary driver of these changes. After 2,000 cal yr BP, the proxy data indicate (a increased fire-episode frequency; (b centennial-scale shifts in bog and forest composition; (c the emergence of vegetation-fire linkages not recorded in previous times; and (d paludification in the last 500 years possibly associated with forest loss. Our results therefore suggest that Nothofagus-Pilgerodendron dominance was maintained through much of the Holocene despite long-term changes in climate and fire. Unparalleled fluctuations in local ecosystems during the last two millennia were governed by disturbance-vegetation-hydrology feedbacks likely triggered by greater climate variability and deforestation.

Caracterización y modelación del transporte preferencial de plaguicidas organofosforados en suelos productivos bajo riego. Aplicación al Distrito Colonia Centenario, Patagonia Argentina.

OpenAIRE

DUFILHO, ANA CECILIA AMALIA

2016-01-01

[EN] In this thesis, transport and fate of organophosphate pesticides - azinphos-methyl and chlorpyrifos- in productive soils from the valley of the Neuquén River in the Patagonia Argentina are analysed. Climate of the region is arid, so traditional fruit production is under flood irrigation. The soils in the floodplain are predominant Aridisols with textures from sandy loam to clay loam. Methodologically, the thesis was based on: field experiments and data and information processing condu...

Larval fish feeding ecology, growth and mortality from two basins with contrasting environmental conditions of an inner sea of northern Patagonia, Chile.

Science.gov (United States)

Landaeta, Mauricio F; Bustos, Claudia A; Contreras, Jorge E; Salas-Berríos, Franco; Palacios-Fuentes, Pámela; Alvarado-Niño, Mónica; Letelier, Jaime; Balbontín, Fernando

2015-05-01

During austral spring 2011, a survey was carried out in the inland sea (41°30'-44°S) of north Patagonia, South Pacific, studying a northern basin (NB: Reloncaví Fjord, Reloncaví Sound and Ancud Gulf) characterized by estuarine regime with stronger vertical stratification and warmer (11-14 °C) and most productive waters, and a southern basin (SB: Corcovado Gulf and Guafo mouth), with more oceanic water influence, showed mixed conditions of the water column, colder (11-10.5 °C) and less productive waters. Otolith microstructure and gut content analysis of larval lightfish Maurolicus parvipinnis and rockfish Sebastes oculatus were studied. Larval M. parvipinnis showed similar growth rates in both regions (0.13-0.15 mm d(-1)), but in NB larvae were larger-at-age than in SB. Larval S. oculatus showed no differences in size-at-age and larval growth (0.16 and 0.11 mm d(-1) for NB and SB, respectively). M. parvipinnis larvae from NB had larger number of prey items (mostly invertebrate eggs), similar total volume in their guts and smaller prey size than larvae collected in SB (mainly calanoid copepods). Larval S. oculatus had similar number, volume and body width of prey ingested at both basins, although prey ingestion rate by size was 5 times larger in NB than in SB, and prey composition varied from nauplii in NB to copepodites in SB. This study provides evidence that physical-biological interactions during larval stages of marine fishes from Chilean Patagonia are species-specific, and that in some cases large size-at-age correspond to increasing foraging success. Copyright © 2015 Elsevier Ltd. All rights reserved.

A multi-decadal remote sensing study on glacial change in the North Patagonia Ice Field Chile

Science.gov (United States)

Tetteh, Lucy Korlekwor

Glaciers in the North Patagonian Ice Fields are temperate glaciers and can be studied to understand the dynamics of climate change. However, the ice field has been neglected in mass balance studies. In this study, multi decadal study of glacial mass balance, glacier retreat and glacial lake expansion in the North Patagonia were studied. Landsat (TM, ETM+ and 8) and ASTER images were used. San Quintin glacier experienced the highest retreat. Demarcation of glacier lakes boundaries indicated an increase in glacial lake area an addition of 4 new glacial lakes. Nef glacier recorded the highest mass gain of 9.91 plus or minus 1.96 m.w.e.a.-1 and HPN-4 glacier recorded the highest mass loss of -8.9 plus or minus 1.96 m.w.e.a. -1. However, there is a high uncertainty in the elevation values in the DEM due to the rugged nature of the terrain and presence of the heavy snow cover.

Marine pollution effects on the southern surf crab Ovalipes trimaculatus (Crustacea: Brachyura: Polybiidae) in Patagonia Argentina.

Science.gov (United States)

Lezcano, Aníbal Hernán; Rojas Quiroga, María Laura; Liberoff, Ana Laura; Van der Molen, Silvina

2015-02-28

We compared the carapace shape and thickness as well as the energy density of Ovalipes trimaculatus inhabiting areas comprising a gradient of marine pollution: high, moderate and undetected, in the Nuevo gulf (Patagonia Argentina). The carapace shape was evaluated by means of individual asymmetry scores (=fluctuating asymmetry) whereas the carapace thickness was assessed by measuring the carapace dry weight. The energy density was analyzed through its negative relationship with water content in muscle tissue. The individual asymmetry scores as well as the percentage of water content in muscle tissue were proportional to the marine pollution gradient, whereas the carapaces thickness did not differ among sampling sites. Our results are consistent with previous findings and demonstrate the direct effect of marine pollution on other taxa different from gastropods, cephalopods and polyplacophora and add to long-standing concerns about detrimental effects caused by marine pollution on the benthic community of the Nuevo gulf. Copyright © 2014 Elsevier Ltd. All rights reserved.

CO2 and CH4 fluxes of contrasting pristine bogs in southern Patagonia (Tierra del Fuego, Argentina)

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Münchberger, Wiebke; Blodau, Christian; Kleinebecker, Till; Pancotto, Veronica

2015-04-01

South Patagonian peatlands cover a wide range of the southern terrestrial area and thus are an important component of the terrestrial global carbon cycle. These extremely southern ecosystems have been accumulating organic material since the last glaciation up to now and are - in contrast to northern hemisphere bogs - virtually unaffected by human activities. So far, little attention has been given to these pristine ecosystems and great carbon reservoirs which will potentially be affected by climate change. We aim to fill the knowledge gap in the quantity of carbon released from these bogs and in what controls their fluxes. We study the temporal and spatial variability of carbon fluxes in two contrasting bog ecosystems in southern Patagonia, Tierra del Fuego. Sphagnum-dominated bog ecosystems in Tierra del Fuego are similar to the ones on the northern hemisphere, while cushion plant-dominated bogs can almost exclusively be found in southern Patagonia. These unique cushion plant-dominated bogs are found close to the coast and their occurrence changes gradually to Sphagnum-dominated bogs with increasing distance from the coast. We conduct closed chamber measurements and record relevant environmental variables for CO2 and CH4 fluxes during two austral vegetation periods from December to April. Chamber measurements are performed on microforms representing the main vegetation units of the studied bogs. Gas concentrations are measured with a fast analyzer (Los Gatos Ultraportable Greenhouse Gas Analyzer) allowing to accurately record CH4 fluxes in the ppm range. We present preliminary results of the carbon flux variability from south Patagonian peat bogs and give insights into their environmental controls. Carbon fluxes of these two bog types appear to be highly different. In contrast to Sphagnum-dominated bogs, cushion plant-dominated bogs release almost no CH4 while their CO2 flux in both, photosynthesis and respiration, can be twice as high as for Sphagnum

Root proliferation in native perennial grasses of arid Patagonia, Argentina

Institute of Scientific and Technical Information of China (English)

Yanina A. TORRES; Mara M. MUJICA; Sandra S. BAIONI; Jos ENTO; Mara N. FIORETTI; Guillermo TUCAT; Carlos A. BUSSO; Oscar A. MONTENEGRO; Leticia ITHURRART; Hugo D. GIORGETTI; Gustavo RODRGUEZ; Diego BENTIVEGNA; Roberto E. BREVEDAN; Osvaldo A. FERNNDEZ

2014-01-01

Pappophorum vaginatum is the most abundant C4 perennial grass desirable to livestock in rangelands of northeastern Patagonia, Argentina. We hypothesized that (1) defoliation reduce net primary productivity, and root length density and weight in the native species, and (2) root net primary productivity, and root length density and weight, are greater in P. vaginatum than in the other, less desirable, native species (i.e., Aristida spegazzinii, A. subulata and Sporobolus cryptandrus). Plants of all species were either exposed or not to a severe defoliation twice a year during two growing seasons. Root proliferation was measured using the cylinder method. Cylindrical, iron structures, wrapped up using nylon mesh, were buried diagonally from the periphery to the center on individual plants. These structures, initially filled with soil without any organic residue, were dug up from the soil on 25 April 2008, after two successive defoliations in mid-spring 2007. During the second growing season (2008-2009), cylinders were destructively harvested on 4 April 2009, after one or two defoliations in mid-and/or late-spring, respectively. Roots grown into the cylinders were obtained after washing the soil manually. Defoliation during two successive years did reduce the study variables only after plants of all species were defoliated twice, which supported the first hypothesis. The greater root net primary productivity, root length den-sity and weight in P. vaginatum than in the other native species, in support of the second hypothesis, could help to explain its greater abundance in rangelands of Argentina.

Reconstruction of a glacial lake outburst flood (GLOF) in the Engaño Valley, Chilean Patagonia: Lessons for GLOF risk management.

Science.gov (United States)

Anacona, Pablo Iribarren; Mackintosh, Andrew; Norton, Kevin

2015-09-15

Floods from moraine-dammed lake failures can have long standing effects not only on riverine landscapes but also on mountain communities due to the high intensity (i.e. great depth and high velocities) and damaging capacity of glacial lake outburst floods (GLOFs). GLOFs may increase in frequency as glaciers retreat and new lakes develop and there is an urgent need to better understand GLOF dynamics and the measures required to reduce their negative outcomes. In Patagonia at least 16 moraine-dammed lakes have failed in historic time, however, data about GLOF dynamics and impacts in this region are limited. We reconstruct a GLOF that affected a small village in Chilean Patagonia in March 1977, by semi structured interviews, interpretation of satellite images and 2D hydraulic modelling. This provides insight into the GLOF dynamics and the planning issues that led to socioeconomic consequences, which included village relocation. Modelling shows that the water released by the GLOF was in the order of 12-13 × 10(6)m(3) and the flood lasted for about 10h, reaching a maximum depth of ~1.5m in Bahía Murta Viejo, ~ 26 km from the failed lake. The lake had characteristics in common with failed lakes worldwide (e.g. the lake was in contact with a retreating glacier and was dammed by a narrow-steep moraine). The absence of land-use planning and the unawareness of the GLOF hazard contributed to the village flooding. The Río Engaño GLOF illustrates how small-scale and short-distance migration is a reasonable coping strategy in response to a natural hazard that may increase in frequency as atmospheric temperature rises and glaciers retreat. Copyright © 2015 Elsevier B.V. All rights reserved.

Distribución de macroinvertebrados (Plecoptera y Aeglidae en ecosistemas fluviales de la Patagonia chilena: ¿Muestran señales biológicas de la evolución geomorfológica postglacial? Distribution of macroinvertebrates (Plecoptera and Aeglidae in fluvial ecosystems of the Chilean Patagonia: Do they show biological signals of the postglacial geomorphological evolution?

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CLAUDIO VALDOVINOS

2010-06-01

Full Text Available La Patagonia chilena incluye uno de los sistemas hídricos más complejos de Sudamérica y uno de los menos intervenidos del mundo, los cuales fueron intensamente modelados por la actividad glacial del Cuaternario. El objetivo de este estudio fue determinar si en esta área existen zonas de endemismo de macroinvertebrados bentónicos fluviales y analizar los patrones de diversidad de organismos de alta (Plecoptera y baja vagilidad (Aeglidae. Entre el 2006 y 2009 se muestrearon 183 sitios entre 42°50' y 54°43' S, focalizándose en las principales cuencas. Los muéstreos se realizaron con una red "kicknet", cubriendo una superficie de fondo de 8 m². En toda el área se registraron 30 especies de Plecoptera y dos de Aeglidae. Se identificó una zona de endemismo en la cuenca del río Aysén, sustentada por el plecóptero Ceratoperla fazi y el cangrejo Aegla neuquensis. Esta última especie correspondería a una población relictual procedente de los ríos de la estepa Argentina, que habría quedado atrapada en la Patagonia chilena, luego que se invirtiera el flujo del cauce del río que originalmente fluía hacia el Atlántico. Un marcado cambio latitudinal en la diversidad de especies fue evidente a lo largo del área de estudio (R² = 0.72, P The Chilean Patagonia includes one of the most complex hydrological systems of South America and one of the least modified systems of the world. These systems were intensely modified by the glacial activity of the Quaternary. The objectives of this study were to determine whether or not in this area exists zones of endemic benthic fluvial macroinvertebrates, and to analyze the patterns of diversity of species composed by organisms of high (Plecoptera and low (Aeglidae vagility. A collection of 183 selected sites, located between the latitude 42° 50' and 54°43' S, were sampled during 2006 and 2009. The sampling was focused on the main river basins and a "kicknet" was used to cover a surface of 8 m² at

Rio responses in the Netherlands

International Nuclear Information System (INIS)

Bruggink, J.J.C.

1994-01-01

Three of the five agreements reached in Rio - the Rio Declaration, Agenda 21 and the Framework Convention on Climate Change - are briefly summarised from and energy perspective. The state of the art in the two national policy areas that are crucial for sustainable development, environmental policy and development cooperation, are then described. Some conclusions are drawn regarding the major bottlenecks and challenges for Dutch policies in the wake of Rio. 2 figs

Riscos de cont?gio em tuberculose entre funcion?rios em um hospital universit?rio no munic?pio de Niter?i - Rio de Janeiro

OpenAIRE

Couto, Ingrid Ramos Reis

2012-01-01

Problema: O aparecimento de casos de adoecimentos por tuberculose entre os funcion?rios do HUAP. Objetivos: Analisar os fatores de risco para tuberculose e o perfil epidemiol?gico dos funcion?rios do HUAP/UFF com resultado da prova tubercul?nica ? 10 mm no per?odo de 2007 a junho de 2011; - Investigar os casos de adoecimento por tuberculose em funcion?rios do HUAP/UFF no per?odo de janeiro de 2004 a julho de 2011; - Identificar a poss?vel associa??o entre o perfil epidemiol?gico dos funcion?r...

Em foco: sustentabilidade Rio 2016, Agosto 2015

OpenAIRE

2015-01-01

Neste endereço, é possível encontrar o primeiro relatório de sustentabilidade do Rio 2016, "Abraçando Mudanças", bem como o Plano de Gestão de Sustentabilidade, o Relatório de Gestão de Pegada de Carbono e o Relatório de Impacto dos Jogos.

Primer registro de Naupactus ruizi (Coleoptera: Curculionoidea asociado con Pinus ponderosa (Gymnospermae: Pinaceae en Patagonia

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Cecilia A. GOMEZ

2006-01-01

Full Text Available Naupactus ruizi (Brèthes es un gorgojo de rostro corto, distribuido en la Argentina y Chile, que habita en ambientes áridos asociado con vegetación xerofítica y alcanza el rango más austral entre los miembros de la tribu Naupactini. Un relevamiento de insectos y de patógenos como plagas potenciales, realizado durante el 2005 en plantaciones de Pinus spp. en la Patagonia andina argentina, resultó en el hallazgo de adultos de N. ruizi que se alimentaban de acículas de Pinus ponderosa Dougl. ex Laws. Este hallazgo es sorprendente dado que las especies de Naupactini, consumen casi exclusivamente angiospermas. Interpretamos que el cambio de huésped, habría ocurrido como consecuencia de una colonización reciente favorecida por la amplia distribución geográfica del gorgojo y su capacidad para sobrevivir en hábitats marginales, donde probablemente las plantas nativas son escasas y el nuevo huésped presenta una gran abundancia local.

Deglacial palaeoclimate at Puerto del Hambre, subantarctic Patagonia, Chile

Science.gov (United States)

Heusser, Calvin J.; Heusser, Linda E.; Lowell, Thomas V.; Moreira M., Andrés; Moreira M., Simón

2000-02-01

The primary objective of this study is to further substantiate multistep climatic forcing of late-glacial vegetation in southern South America. A secondary objective is to establish the age of deglaciation in Estrecho de Magallanes-Bahía Inútil. Pollen assemblages at 2-cm intervals in a core of the mire at Puerto del Hambre (53°3621S, 70°5553W) provide the basis for reconstructing the vegetation and a detailed account of palaeoclimate in subantarctic Patagonia. Chronology over the 262-cm length of core is regulated by 20 AMS radiocarbon dates between 14 455 and 10 089 14C yr BP. Of 13 pollen assemblage zones, the earliest representing the Oldest Dryas chronozone (14 455-13 000 14C yr BP) records impoverished steppe with decreasing frequencies and loss of southern beech (Nothofagus). Successive 100-yr-long episodes of grass/herbs and of heath (Empetrum/Ericaceae) before 14 000 14C yr BP infer deglacial successional communities under a climate of increased continentality prior to the establishment of grass-dominated steppe. The Bølling-Allerød (13 000-11 000 14C yr BP) is characterised by mesic grassland under moderating climate that with abrupt change to heath dominance after 12 000 14C yr BP was warmer and not as humid. At the time of the Younger Dryas (11 000-10 000 14C yr BP), grass steppe expanded with a return of colder, more humid climate. Later, with gradual warming, communities were invaded by southern beech. The Puerto del Hambre record parallels multistep, deglacial palaeoclimatic sequences reported elsewhere in the Southern Andes and at Taylor Dome in Antarctica. Deglaciation of Estrecho de Magallanes-Bahía Inútil is dated close to 14 455 14C yr BP, invalidating earlier dates of between 15 800 and 16 590 14C yr BP.

Volcanic nutrient inputs and trophic state of Lake Caviahue, Patagonia, Argentina

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Pedrozo, Fernando L.; Temporetti, Pedro F.; Beamud, Guadalupe; Diaz, Mónica M.

2008-12-01

The strategies for eutrophication control, remediation, and policy management are often defined for neutral to alkaline freshwater systems, as they are most suitable for human use. The influence of nutrients on eutrophication in a naturally-acidic lake is poorly known. The main purpose of the present work is to evaluate the significance of volcanic nutrients in the control of the trophic state of the acidic Lake Caviahue, located at North Patagonia, Argentina. Acidic water systems were most studied on artificial acidified lakes, such as mining lakes in Germany or pit lakes in the United States. Lake Caviahue received a very high P load (42-192 ton P/yr) and low N load (14 ton N/yr), mainly as ammonium with quite low N:P ratios (Copahue volcano represents the main natural contribution of nutrients and acidity to the Lake Caviahue. The lake is oligotrophic in terms of CHLa. Neither the transparency nor the nutrient, dissolved or particulate, contents are to date representative of the trophic state of the lake. High P loads do not imply the eutrophication of the lake. We suggest that nitrogen and not phosphorus represents the key control nutrient in volcanically acidified lakes as TON was better related to CHLa observed (0.13-0.36 mg/m 3) in the lake. The pH increased around one unit (pH 2.0-3.0) during the last five years suggesting that the lake has not yet returned to a stable state.

Organic carbon in glacial fjords of Chilean Patagonia

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Pantoja, Silvio; Gutiérrez, Marcelo; Tapia, Fabián; Abarzúa, Leslie; Daneri, Giovanni; Reid, Brian; Díez, Beatriz

2016-04-01

The Southern Ice Field in Chilean Patagonia is the largest (13,000 km2) temperate ice mass in the Southern hemisphere, yearly transporting ca. 40 km3 of freshwater to fjords. This volume of fresh and cold water likely affects adjacent marine ecosystems by changing circulation, productivity, food web dynamics, and the abundance and distribution of planktonic and benthic organisms. We hypothesize that freshwater-driven availability of inorganic nutrient and transport of organic and inorganic suspended matter, as well as microbes, become a controlling factor for productivity in the fjord associated with the Baker river and Jorge Montt glacier. Both appear to be sources of silicic acid, but not of nitrate and particulate organic carbon, especially during summer, when surface PAR and glacier thawing are maximal. In contrast to Baker River, the Jorge Montt glacier is also a source of dissolved organic carbon towards a proglacial fjord and the Baker Channel, indicating that a thorough chemical description of sources (tidewater glacier and glacial river) is needed. Nitrate in fiord waters reaches ca. 15 μM at 25 m depth with no evidence of mixing up during summer. Stable isotope composition of particulate organic nitrogen reaches values as low as 3 per mil in low-salinity waters near both glacier and river. Nitrogen fixation could be depleting δ15N in organic matter, as suggested by the detection at surface waters of nif H genes belonging to diazotrophs near the Montt glacier. As diazotrophs have also been detected in other cold marine waters (e.g. Baltic Sea, Arctic Ocean) as well as glaciers and polar terrestrial waters, there is certainly a potential for both marine and freshwater microbes to contribute and have a significant impact on the Patagonian N and C budgets. Assessing the impact of freshwater on C and N fluxes and the microbial community structure in Patagonian waters will allow understanding future scenarios of rapid glacier melting. This research was funded

Diel changes in metal concentrations in a geogenically acidic river: Rio Agrio, Argentina

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Parker, Stephen R.; Gammons, Christopher H.; Pedrozo, Fernando L.; Wood, Scott A.

2008-12-01

Rio Agrio in Patagonia, Argentina is a geogenically acidic stream that derives its low-pH waters from condensation of acidic gases near its headwaters on the flanks of the active Copahue Volcano. This study reports the results of three diel (24-h) water samplings in three different pH regimes (3.2, 4.4 and 6.3) along the river. Changes in the concentration and speciation of Fe dominated the diel chemical changes at all three sites, although the timing and intensity of these cycles were different in each reach. At the two acidic sampling sites, total dissolved Fe and dissolved Fe(III) concentrations decreased during the day and increased at night, whereas dissolved Fe(II) showed the reverse pattern. These cycles are explained by Fe(III) photoreduction, as well as enhanced rates of precipitation of hydrous ferric oxide (HFO) during the warm afternoon hours. A strong correlation was observed between Fe(III) and As at the furthest upstream (pH 3.2) site, most likely due to co-precipitation of As with HFO. At the downstream (pH 6.3) location, Fe(II) concentrations increased at night, as did concentrations of rare earth elements and dissolved Al. Photoreduction does not appear to be an important process at pH 6.3, although it may be indirectly responsible for the observed diel cycle of Fe(II) due to advection of photochemically produced Fe(II) from acidic upstream waters. The results of this study of a naturally-acidic river are very similar to diel trends recently obtained from mining-impacted streams receiving acid rock drainage. The results are also used to explore the link between geochemistry and microbiology in acidic eco-systems. For example, Fe(III) photoreduction produces chemical potential energy (in the form of metastable Fe 2+) that helps support the bacterial community in this unique extreme environment.

Refractory oxides containing aluminium and barium Oxidos refratários contendo alumínio e bário

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T. J. Davies

1998-10-01

Full Text Available Oxides containing aluminium and barium, optionally with chromium, are refractory with several possible industrial uses. A gel precursor of an oxide having the formula BaO.n(Al2xCr2yO3, where 1Oxidos contendo alumínio e bário, opcionalmente com crômio, são refratários com vários possíveis usos industriais. Foi preparado um gel precursor de um óxido de formula BaO.n(Al2xCr2yO3, com 1rio com uma solução de um sal de bário com solução de um sal de alumínio ou uma solução de um sal de alumínio e um sal de cromo III, formando então um gel que é queimado para se obter o óxido desejado. Filamentos podem ser estraídos duramente a formação do gel ou extrudados de um gel semi-rígido. Estudos de infravermelho com transformada de Fourier, difração de raios X e ressonância magnética nuclear com 27AL mostraram que o bário não é incorporado diretamente na estrutura do gel. Oxidos de alumínio e bário foram obtidos somente após liquefação de espécies de bário. Foi preparada uma mistura de pós adequada para queima para se obter um óxido de fórmula BaO.m[Al2x Cr2y O3] com 4,6rio, óxido de bário, carbonato de bário e mono-aluminato de bário, alumina e/ou alumina hidratada e óxido de cromo III, com quantidades relativas variando para se obter na queima valores desejados de m e de y. Corpos cerâmicos resistentes da fórmula BaO 6 Al2O3 (m=6 e y=0 foram preparados. Estudos de difração de raios X de óxidos de composições (n ou m=6 e y=0 sinterizados em alta temperatura mostraram que mono-aluminato de bário é uma fase intermediária de baixa temperatura. Cromo III reduz a temperatura necessária para formar um óxido de alumínio e bário. É feito um sumário de trabalhos anteriormente publicados.

An Assessment of Oil Pollution in the Coastal Zone of Patagonia, Argentina

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Commendatore, Marta Graciela; Esteves, José Luis

2007-11-01

The Patagonian coast is considered a relatively pristine environment. However, studies conducted along coastal Patagonia have showed hydrocarbon pollution mostly concentrated at ports that have fishing, oil loading, general merchant, and/or tourist activities. A high value of total aliphatic hydrocarbons (TAH) was found at the Rawson fishing port (741 μg/g dw). In other ports with and without petroleum-related activities, hydrocarbon values were approximately 100 μg/g dw. The highest values for TAH and total aromatic hydrocarbons (TArH) were found in Faro Aristizábal, north of San Jorge gulf (1304 and 737 μg/g dw, respectively). This is very likely the result of petroleum-related activities at the Comodoro Rivadavia, Caleta Cordova, and Caleta Olivia ports located within this gulf. In other coastal areas away from potential anthropogenic sources, hydrocarbon values were less than 2 and 3 μg/g dw for TAH and TArH, respectively. This review of published and unpublished information suggests that ports are important oil pollution sources in the Patagonian coast. More detailed studies are needed to evaluate the area affected by port activities, to understand the mechanisms of hydrocarbon distribution in surrounding environments, and to assess bioaccumulation in marine organisms. Despite that some regulations exist to control oil pollution derived from port and docked vessel activities, new and stricter management guidelines should be implemented.

A Middle Jurassic abelisaurid from Patagonia and the early diversification of theropod dinosaurs.

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Pol, Diego; Rauhut, Oliver W M

2012-08-22

Abelisaurids are a clade of large, bizarre predatory dinosaurs, most notable for their high, short skulls and extremely reduced forelimbs. They were common in Gondwana during the Cretaceous, but exceedingly rare in the Northern Hemisphere. The oldest definitive abelisaurids so far come from the late Early Cretaceous of South America and Africa, and the early evolutionary history of the clade is still poorly known. Here, we report a new abelisaurid from the Middle Jurassic of Patagonia, Eoabelisaurus mefi gen. et sp. nov., which predates the so far oldest known secure member of this lineage by more than 40 Myr. The almost complete skeleton reveals the earliest evolutionary stages of the distinctive features of abelisaurids, such as the modification of the forelimb, which started with a reduction of the distal elements. The find underlines the explosive radiation of theropod dinosaurs in the Middle Jurassic and indicates an unexpected diversity of ceratosaurs at that time. The apparent endemism of abelisauroids to southern Gondwana during Pangean times might be due to the presence of a large, central Gondwanan desert. This indicates that, apart from continent-scale geography, aspects such as regional geography and climate are important to reconstruct the biogeographical history of Mesozoic vertebrates.

Saccharomyces uvarum is responsible for the traditional fermentation of apple chicha in Patagonia.

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Rodríguez, Maria E; Pérez-Través, Laura; Sangorrín, Marcela P; Barrio, Eladio; Querol, Amparo; Lopes, Christian A

2017-01-01

Apple chicha is a fresh low alcoholic beverage elaborated by aboriginal communities of Andean Patagonia (Argentina and Chile). In the present work, we identified the yeast microbiota associated with this fermentation, and characterized genetically those belonging to the genus Saccharomyces. Both Saccharomyces cerevisiae and S. uvarum were found in the analyzed fermentations. Phylogenetic and population structure analyses based on genes sequence analysis were carried out for both S. cerevisiae and S. uvarum strains obtained in this study and a set of additional strains from diverse origins. The results demonstrate that S. cerevisiae strains from apple chicha belong to the big group of wine/European strains of this species, while S. uvarum strains were included in the Holartic population of this species. Additionally, some S. uvarum strains from chichas evidenced as an admixture of both pure Holartic and pure South American populations. Our results suggest that Holartic strains could have been introduced in South America together with the domestication of apple trees by Mapuche communities. This Holartic population suffered admixis with the naturally present South American population of this species, originating strains bearing genetic features from the two populations, detectable in both chichas and natural habitats. © FEMS 2016. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

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Results 281 - 290 of 372 ... Filter by programs ... Autonomy and Community Management of Protected Areas in Neuquen and Araucania (Argentina and Chile) ... promote economic growth, social inclusion and sound environmental governance.

Fitossociologia de florestas de mangue plantadas e naturais no estuário do Rio das Ostras, Rio de Janeiro, Brasil

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Elaine Bernini

2013-10-01

Full Text Available http://dx.doi.org/10.5007/2175-7925.2014v27n1p37 A fitossociologia de florestas de mangue plantadas e naturais foi comparada no estuário do Rio das Ostras, Rio de Janeiro, Brasil. A amostragem da vegetação foi feita pelo método de parcelas, sendo registrado o diâmetro à altura do peito (DAP e a altura dos indivíduos > 1 m de altura. Os resultados indicaram que a floresta plantada apresenta menores valores de DAP médio e área basal, e maior densidade de troncos em relação à floresta natural. A distribuição de indivíduos por classes de altura e a distribuição de troncos por classes diamétricas mostraram que a floresta plantada é mais jovem. Laguncularia racemosa e Rhizophora mangle ocorreram em ambas as florestas, enquanto Avicennia schaueriana foi registrada apenas na floresta plantada. Laguncularia racemosa apresentou maior dominância e densidade relativa em todos os sítios analisados, provavelmente, por ser característica de locais com menor influência marinha e pelo fato do estuário ter sido alterado por perturbações antrópicas.

Variabilidad morfométrica dental en muestras arqueológicas tardías del sudeste de la región pampeana y noreste de Patagonia

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Bernal, Valeria

2003-01-01

Full Text Available Recientemente, se ha postulado la ocurrencia de un proceso de expansión demográfico y geográfico de las poblaciones del norte de Patagonia durante el Holoceno tardío, con posterioridad a la denominada Anomalía Climática Medieval (ca. 800 - 1350 AD. En el marco del proyecto "La Dinámica Evolutiva de Poblaciones y Metapoblaciones Humanas en las Regiones Pampeana y Patagónica (33°- 52° Lat. Sur durante el Holoceno Tardío" (Subsidio de Inicio de Carrera Fundación Antorchas Nº 14116-111 se están desarrollando estudios orientados a analizar la variación morfológica craneal y postcraneal de las poblaciones humanas de ambas regiones, con el fin de discutir la dinámica poblacional durante el Holoceno tardío. En este contexto, el objetivo del presente trabajo es analizar la variabilidad morfométrica dental de muestras diacrónicas procedentes del SE de la Región Pampeana y NE de Patagonia (v.g. valles de los ríos Chubut y Negro, litoral atlántico sudbonaerense. Las variables consideradas incluyen diámetros mesiodistales y bucolinguales sobre la corona dental y el margen cervical, medidos sobre piezas dentales permanentes. Los resultados obtenidos mediante el empleo de test estadísticos uni y multivariados, serán discutidos con relación al resto de la evidencia morfológica actualmente disponible para ambas regiones.

LA GEOPEDOLOGIA COMO BASE PARA ZONIFICAR LA APTITUD FORESTAL EN UNA CUENCA DEL NOROESTE DE LA PATAGONIA ARGENTINA

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Maria Cristina Frugoni

2016-12-01

Full Text Available Geopedology at a semi-detailed scale (1:50.000 was carried out in Buta Mallín catchment which includes an area of 21.065ha, in the northwest of Neuquén province, Argentine Patagonia. Geopedology provides a spatial dimension of soil-landscape relations, which are displayed in a map and its legend, showing the geoforms (contours and their soils (content, based on the premise that soil is landscape as well as profile. According to this approach three landscapes were recognized: glacial modeled mountains, plateau and valley. The relief consists mainly of steep to very steep slopes, and valley bottoms with poorly drained soils. Lithology (parent material corresponds to holocene volcanic ash in the western sector of the study area, while the eastern sector is dominated by tuff. Twenty terrain forms and their soils were identified. With this basic information, attribute tables were constructed considering landscape and soil properties. Regarding soils, physical fertility properties were considered, since these are the most correlated ones with Pinus ponderosa (pino ponderosa growth, the main species used in afforestation in Patagonia. Those tables were included and analized with a GIS (Geographic Information System to obtain a forest suitability map. The study area shows four forest suitability classes. Suitable: 37ha; moderately suitable: 4.512ha; marginally suitable: 6.072ha; not suitable: 10.444ha. The main limitations of the area are the very steep slopes, height and the areas dominated by rock outcrops and detrital covers. Nothofagus antarctica (ñire shrubs cover part of the suitable areas; because of conservation criteria of these natural communities, these lands were considered not suitable. On the other side, there are more than 4.000 ha of moderately suitable lands, which can be considered for a more detailed study. Transhumant cattle raising is the main land use system in this catchment, which is an ancient culture of the Northern Neuquian

Análise da qualidade de água dos principais rios do município de Rio Negrinho (SC / Analysis of water quality of principal rivers in the Rio Negrinho city (SC

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Simone Malutta

2013-01-01

Full Text Available As bacias hidrográficas do rio Preto e do rio Negrinho são as principais unidades do município de Rio Negrinho (SC. Nestas, há pontos de monitoramento de alguns parâmetros de qualidade de água realizados pelo Programa Intermunicipal da Água. O objetivo do presente trabalho foi realizar a análise da qualidade de água nesses vários pontos de monitoramento nos principais rios desse município. Para entender melhor os recursos hídricos da região em termos tanto de qualidade quanto de quantidade, foram feitas análises de correlações entre os dados monitorados de qualidade de água e os dados de vazão diários simulados pelo modelo SWAT. Não se encontrou correlação significativa entre os dados de vazão simulados pelo modelo SWAT e os dados de qualidade de água em todos os pontos analisados. Foi identificado que os rios Serrinhas e Banhado, os quais se localizam na bacia do rio Negrinho, apresentaram índices de qualidade de água inferiores aos demais rios estudados devido principalmente aos efluentes provindos da urbanização. Foi identificado que há medianas, vários outlier e valores extremos dos parâmetros de DBO e OD que ficaram muito acima da legislação vigente.

Intestinal helminth fauna of the South American sea lion Otaria flavescens and fur seal Arctocephalus australis from northern Patagonia, Argentina.

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Hernández-Orts, J S; Montero, F E; Juan-García, A; García, N A; Crespo, E A; Raga, J A; Aznar, F J

2013-09-01

We report on the intestinal helminth fauna of 56 South American sea lions, Otaria flavescens, and 5 South American fur seals, Arctocephalus australis, from northern Patagonia, Argentina. A total of 97,325 helminth specimens were collected from sea lions. Gravid individuals were represented by 6 species of parasites: 1 digenean (Ascocotyle (Ascocotyle) patagoniensis), 1 cestode (Diphyllobothrium spp.), 3 nematodes (Uncinaria hamiltoni, Contracaecum ogmorhini s.s., Pseudoterranova cattani) and 1 acanthocephalan (Corynosoma australe). In addition, third-stage larvae of 2 nematodes (Contracaecum sp. and Anisakis sp. type I) and 3 juvenile acanthocephalans (Andracantha sp., Profilicollis chasmagnathi and Corynosoma cetaceum) were also collected. Andracantha sp., C. ogmorhini s.s. and P. chasmagnathi represent new host records. A total of 1516 helminth specimens were collected from fur seals. Gravid individuals were represented by three species of parasites, namely, Diphyllobothrium spp., C. ogmorhini s.s. and C. australe. In addition, larvae of Contracaecum sp. and P. cattani, juveniles of C. cetaceum and immature cestodes (Tetrabothriidae gen. sp.) were also collected. Corynosoma australe was the most prevalent and abundant parasite in both hosts, accounting for >90% of all specimens. Sea lions and furs seals from northern Patagonia harbour the intestinal helminth communities that could be predicted for otariids, i.e. the combination of species of the genera Corynosoma, Diphyllobothrium, Pseudoterranova, Contracaecum and, in pups, Uncinaria. Additionally, both species of otariid are apparently unsuitable hosts (i.e. non-hosts) for as many as five parasite taxa. The inclusion or exclusion of these species affects estimation of species richness at both component community (11 versus 6 species in sea lions; 7 versus 3 species in fur seals) and infracommunity (mean: 3.1 versus 2.6 in sea lions; 2.2 versus 1.7 species) levels. Information about the reproductive status of

ESTIMACIÓN DE EROSIÓN HIDRICA DE SUELOS PARA PLAN DE MANEJO DEL CAMPO FORESTAL AGUAS FRÍAS, PATAGONIA ARGENTINA

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Ana C. Dufilho

2011-12-01

Full Text Available In Argentine Patagonia there exist large extensions of lands degraded by overgrazing, this favours soil water erosion. Two million hectares are eligible for forestation (Gallo et al. 2005, with some environmental limitations that require previous studies to prepare development and sustainability proposals. The study area is located in the right margin of the Litrán River, 25 kms of its estuary in Aluminé Lake (Province of Neuquén. In this area, some Mapuche (araucanian communities carry out stock breeding (mainly goats using a migrating system. This region presents very severe Aeolian and hydrological erosion. The objective of the afforestation management plan of this land, is the design of control measures, to stop erosion, like perimeter close, afforestation and structural measures for controlling erosional gully. It is then necessary, to characterize the actual and potential erosion, that would allow to carry out with measures monitoring to implement controls and mitigation. Paper presents, pedology map by interpreting and georreferencing satellite images by a Geographical Information System. (GIS. The mapping methodology was based in Hierarchical Classification of Landforms, which is the structure of the geopedology focus for mapping soil (Zinck, 1989. The classification of actual erosion was obtained from the method of the Bureau of Land Management (USDI by visual inspection of seven aspects of erosion in surface. The estimation of the potential erosion of the floors of the forest field was carried out utilizing the Universal Soil Lost Equation (USLE and ArcGis 9,2 (ESRI, 2006 to carry out the spatial analysis, obtaining a map of annual soil loss ( tn/has/year with a spatial resolution of 30 m. The application of spatial analysis tools in the study of soil water erosion in Patagonia, Argentina contributes to the objective of defining define a program of development and adequate management, as a function of the state and degree of

CONSTRUÇÃO DE IDENTIDADE(S NA VELHICE: OS TERRITÓRIOS ENQUANTO MARCOS IDENTITÁRIOS

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Marcia Regina Medeiros Veiga

Full Text Available RESUMO Este artigo tem por objetivo refletir sobre o contributo específico dos territórios - a casa, a rua, o entorno - enquanto referência fundamental na construção identitária de pessoas idosas. Nossa base reflexiva foi construída a partir de observações e descrições do território conhecido como "Alta", no casco histórico de Coimbra, Portugal; entrevistas semiestruturadas, com 12 de seus residentes; e com notas de campo, sistematizadas num diário de bordo da pesquisa, construído para o efeito. A construção identitária de grande parte das pessoas idosas encontra-se profundamente ancorada nos territórios onde vivem, principalmente quando estas pessoas residem há muito tempo em um mesmo espaço geográfico, no qual vivenciam uma parte muito substantiva do seu cotidiano. Esta centralidade é, ainda, reforçada quando apresentam mobilidades reduzidas ou condicionadas, quer pelas dificuldades de acessibilidade dos próprios territórios, quer por limitações pessoais, iniciadas e/ou acentuadas na velhice.

Diversity, distribution and floral specificity of tangle-veined flies (Diptera: Nemestrinidae in north west Patagonia, Argentina Diversidad, distribución y especificidad floral de nemestrínidos (Diptera en el noroeste de la Patagonia, Argentina

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MARIANO DEVOTO

2006-03-01

Full Text Available Tangle-veined flies (Nemestrinidae constitute a primitive and rather widespread family among Diptera. The genus Trichophthalma occurs in Australia and South America and is the only one in the family with a typically Gondwanian, disjoint distribution. The ecology and distribution of most southern South American species of this genus remains virtually unknown. We studied the diversity, distribution and flower specificity of flower-visiting species of the genus Trichophthalma in the temperate forests of southern South America in ten sites along an east-west rainfall gradient (37-40°S on the eastern slope of the Andes. We recorded nine species of Trichophthalma, which showed an overlapped distribution along the gradient and different degrees of floral specificity. Three species are reported for Argentina for the first time and three are first recorded as flower visitors to the local flora. Our results show that while in southern Africa tangle-veined flies are engaged in highly specialized pollination interactions with long-tubed species, the Trichophthalma spp. of Patagonia share their flowers with a diverse and rather unspecialized visitor fauna among which several species of flies, bees and birds are presentLos nemestrínidos constituyen una familia de Dípteros primitiva y de amplia distribución. El género Trichophthalma se encuentra en Australia y Sudamérica y es el único en la familia con una distribución disjunta típicamente gondwánica. La ecología y distribución de la mayoría de las especies sudamericanas permanecen virtualmente desconocidas. Estudiamos la diversidad, distribución y especificidad floral de las especies del género Trichophthalma de los bosques templados del sur de Sudamérica en diez sitios ubicados a lo largo de un gradiente de precipitación este-oeste (37-40°S sobre la vertiente occidental de los Andes. Registramos nueve especies de Trichophthalma, las cuales mostraron una distribución superpuesta a lo largo

Deforestation near Rio Branco, Brazil

Science.gov (United States)

2001-01-01

Settlement and deforestation surrounding the Brazilian town of Rio Branco are seen here in the striking 'herring bone' deforestation patterns that cut through the rainforest. Rio Brancois the capital of the Brazilian state of Acre and is situated near the border with northeastern Bolivia. The town is a center for the distribution of goods, including rubber, metals, medicinal plants, Brazil nuts and timber. Colonization projects in the region are supported by farming, logging activities, and extensive cattle ranching. Much of the surrounding terrain is of a poorly-draining clay hardpan soil, and heavy rainfall periodically converts parts of the forested region to swamp.The large overview image was acquired by the Multi-angle Imaging SpectroRadiometer's vertical-viewing (nadir) camera on July 28, 2000, and covers an area of 336 kilometers x 333 kilometers. A plume of smoke is visible north of the Rio Branco road, which roughly parallels the slender, twisting Rio Abuna. Most of the major rivers in the image provide reference points for state or international (Bolivia-Brazil) boundaries, and flow northeast to the Rio Madeira (east of the smoke plume). The border between Acre and the Bolivian department of Pando is marked by the Rio Abuna. Pando's southern boundary with the department of Beni is marked by the Rio Madre de Dios, the large river in the lower half of the image.The two higher-resolution inset images highlight a settled area north of the town of Rio Branco. These nadir views cover an area of 60 kilometers x 67 kilometers, and were acquired eleven months apart during Terra orbits 3251 and 8144. In the later image, more haze is present, possibly due to smoke from fires on that day. Comparing the two images provides a method of measuring the changes and expansion in the area of cleared land. One newly cleared patch is apparent near the middle of the later image, slightly off to the right. This polygon represents an area of about 16 square kilometers, or 4000

Morfometría externa y reparto de recursos en zorros simpátricos (Pseudalopex culpaeus y P. griseus) en el sureste de la Patagonia Argentina

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Zapata, Sonia C.; Procopio, Diego E.; Martínez-Peck, Rolando; Zanón, Juan I.; Travaini, Alejandro

2008-01-01

Estudios previos han demostrado que el tamaño corporal de zorros grises o chillas (Pseudalopex griseus) y colorados o culpeos (P. culpaeus) es similar en alopatría, y que en simpatría se produce una divergencia en el tamaño de ambos zorros. El aumento en la diferencia del tamaño corporal entre las dos especies hacia la porción más austral de su distribución (Patagonia Argentina y sur de Chile) permitiría una especialización hacia diferentes recursos favoreciendo su coexistencia. Sin embargo, ...

TERRITÓRIOS E FRONTEIRAS AMAZÔNICAS

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Nogueira, Ricardo José Batista

2014-01-01

O texto apresenta uma discussão sobre a diversidade de territórios e fronteiras na Amazônia. Demonstra as diferenças entre fronteiras políticas e econômicas e a mobilidade no interior destes territórios. Aponta ainda que a criação de novos territórios - ecológicos e étnicos - instituiu novas fronteiras às populações rurais.

Utility of high-altitude infrared spectral data in mineral exploration: Application to Northern Patagonia Mountains, Arizona

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Berger, B.R.; King, T.V.V.; Morath, L.C.; Phillips, J.D.

2003-01-01

Synoptic views of hydrothermal alteration assemblages are of considerable utility in regional-scale minerals exploration. Recent advances in data acquisition and analysis technologies have greatly enhanced the usefulness of remotely sensed imaging spectroscopy for reliable alteration mineral assemblages mapping. Using NASA's Airborne Visible Infrared Imaging Spectrometer (AVIRIS) sensor, this study mapped large areas of advanced argillic and phyllic-argillic alteration assemblages in the southeastern Santa Rita and northern Patagonia mountains, Arizona. Two concealed porphyry copper deposits have been identified during past exploration, the Red Mountain and Sunnyside deposits, and related published hydrothermal alteration zoning studies allow the comparison of the results obtained from AVIRIS data to the more traditional field mapping approaches. The AVIRIS mapping compares favorably with field-based studies. An analysis of iron-bearing oxide minerals above a concealed supergene chalcocite deposit at Red Mountain also indicates that remotely sensed data can be of value in the interpretation of leached caps above porphyry copper deposits. In conjunction with other types of geophysical data, AVIRIS mineral maps can be used to discriminate different exploration targets within a region.

Dietary analysis of Homonota darwini (Squamata: Gekkoni-dae in Northern Patagonia

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Marcelo E. KUN, Carla PIANTONI, John D. KRENZ, Nora R. IBARGÜENGOYTÍA

2010-08-01

Full Text Available Our study investigated the diet of the southernmost gecko in the world, Homonota darwini. Fifty-three specimens were captured during spring and summer in four locations in Patagonia, Argentina. The stomach contents of the specimens were identified, and we found that prey consisted of six main groups: Coleoptera, Hymenoptera, Homoptera and Araneae, and the adults and larvae of moth Lepidoptera. Lepidoptera was the major dietary component. The presence of ants and moths as common prey suggests an ambush feeding strategy. In spring, females consumed more ants than males although no other dietary differences between males and females were evident. We found nine geckos with empty stomachs and six parasitized by nematodes. Presence of empty stomachs corroborates previous observations of other nocturnal geckos and non-gecko lizards. Reduced foraging success of nocturnal lizards could be due to difficulty in prey detection due to dim light, reduced or erratic activity of insect prey at night, or shorter activity times of geckos relative to diurnal success. Sex and season were not associated with the incidence of empty stomachs. Principal component analysis showed that four food alternatives correlated with season. The constraint of nocturnality, coupled with low night-time temperatures restricting feeding to only a few hours after sunset, appear to have caused a generality of diet which may limit energy acquisition. We conclude that H. darwini is an arthropod generalist and likely an ambush forager, as are many other nocturnal gekkonids [Current Zoology 56 (4: 406–410, 2010].

Sulfato de bário versus carbonato de bário: um trágico equívoco de solubilidade

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NEVES, Eduardo Almeida; NEVES, Regina Maria de Almeida

2004-01-01

Envenenamento seguido de morte de pessoas que ingeriram um sulfato de bário preparado em laboratório farmacêutico (em exames de Raios X), foram vítimas de produto contendo alguma porcentagem de carbonato de bário como contaminante. Tratamento por equilíbrio químico dos dados de solubilidade dos precipitados nas condições de acidez estomacal mostrou que a presença do carbonato de bário causa um aumento de solubilidade de 19200 vezes em íons de bário, em comparação com a esperada pelo sulfat...

Desarrollo morfológico y conductual de pollos del aguilucho chico Buteo albigula (Aves: Accipitridae en el noroeste de la Patagonia argentina Morphologic and behavioral development of white-throated hawk Buteo albigula (Aves: Accipitridae nestlings in northwestern Argentine Patagonia

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VALERIA OJEDA

2003-09-01

Full Text Available El desarrollo morfológico y conductual del aguilucho chico (Buteo albigula en el nido fue estudiado en cercanías de San Carlos de Bariloche, al noroeste de la Patagonia argentina. El estudio se basó en el seguimiento de dos pollos producidos en diferentes nidos en la temporada reproductiva 2001-2002, y se lo complementó con datos tomados ad libitum en otros nidos, esa misma y anteriores temporadas. Los pollos permanecieron en el nido por aproximadamente seis semanas. Durante su desarrollo morfológico se evidenciaron diversos cambios; notablemente, la aparición secuencial de dos plumones natales, que solo fue observada entre especies de Buteo neotropicales, para B. brachyurus. La conducta de los pollos se encuadró en los patrones comunes para otras especies de Buteo de tamaño corporal similar. Además, se caracterizó, por primera vez para la Argentina, un juvenil (muerto accidentalmente, y se tomaron medidas y peso (por primera vez para B. albigula de dos adultos anillados cerca de sus nidos. El juvenil fue relativamente similar al descrito en Chile. Los adultos, que serían los primeros aguiluchos chicos en ser anillados, se suman a los escasos ejemplares medidos en el área reproductiva conocida de la especie.The morphological and behavioral development of white-throated hawk (Buteo albigula nestlings was studied near San Carlos de Bariloche, in northwestern Argentine Patagonia. The study was mainly based on the monitoring of two nestlings produced at different nests during 2001-2002 breeding season, and was reinforced with data obtained at libitum in other nests the same and previous breeding seasons. The nestling period extended for approximately 6 weeks. Morphological development was characterized by several changing features, but the most surprising was the development of first and second natal down, which was only known, among Neotropical Buteo species, for B. brachyurus. Nestling behavioral development matched the general

Rock in Rio: forever young

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Ricardo Ferreira Freitas

2014-12-01

Full Text Available The purpose of this article is to discuss the role of Rock in Rio: The Musical, as herald of megafestival Rock in Rio. Driven by the success that musicals have reached in Brazil, we believe that the design of this spectacle of music, dance and staging renews the brand of the rock festival, once it adds the force of young and healthy bodies to its concept. Moreover, the musical provides Rock in Rio with some distance from the controversal trilogy of sex, drugs and rock and roll, a strong mark of past festivals around the world. Thus, the musical expands the possibilities of growth for the brand.

Nuisance ecology: do scavenging condors exact foraging costs on pumas in Patagonia?

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Elbroch, L Mark; Wittmer, Heiko U

2013-01-01

Predation risk describes the energetic cost an animal suffers when making a trade off between maximizing energy intake and minimizing threats to its survival. We tested whether Andean condors (Vultur gryphus) influenced the foraging behaviors of a top predator in Patagonia, the puma (Puma concolor), in ways comparable to direct risks of predation for prey to address three questions: 1) Do condors exact a foraging cost on pumas?; 2) If so, do pumas exhibit behaviors indicative of these risks?; and 3) Do pumas display predictable behaviors associated with prey species foraging in risky environments? Using GPS location data, we located 433 kill sites of 9 pumas and quantified their kill rates. Based upon time pumas spent at a carcass, we quantified handling time. Pumas abandoned >10% of edible meat at 133 of 266 large carcasses after a single night, and did so most often in open grasslands where their carcasses were easily detected by condors. Our data suggested that condors exacted foraging costs on pumas by significantly decreasing puma handling times at carcasses, and that pumas increased their kill rates by 50% relative to those reported for North America to compensate for these losses. Finally, we determined that the relative risks of detection and associated harassment by condors, rather than prey densities, explained puma "giving up times" (GUTs) across structurally variable risk classes in the study area, and that, like many prey species, pumas disproportionately hunted in high-risk, high-resource reward areas.

Comportamento aleatório: algumas considerações

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Barba Lourenço de Souza

2000-01-01

Full Text Available Este estudo defende que o comportamento aleatório pode tornar-se legítimo objeto de estudo de uma ciência do comportamento. Analisamos inicialmente algumas considerações que B. F. Skinner formulou sobre o comportamento aleatório em suas Contingências do Reforço. Segundo Skinner (1969/1975, o comportamento aleatório "não apresenta interesse como processo de comportamento". Apresentamos uma rigorosa definição de "comportamento aleatório". Sustentamos que o comportamento aleatório pode constituir objeto de análise funcional, examinando alguns estudos empíricos que se têm conduzido sobre o comportamento aleatório. Apresentamos ainda algumas dificuldades empíricas e teóricas que podem afetar as investigações nessa área. Concluímos que o comportamento aleatório é um fascinante e importante tópico para uma completa ciência do comportamento.

Inventário de Emissões de Gases de Efeito Estufa no Campus Gávea da PUC-Rio

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João Paulo Andrade F. de Carvalho

Full Text Available RESUMO O presente trabalho apresenta resultados preliminares de um inventário de emissões de gases de efeito estufa (GEE elaborado para o campus da PUC-Rio, situado no bairro da Gávea, zona sul da cidade do Rio de Janeiro. Foram identificadas emissões de GEE nos escopos 1 (combustão estacionária e móvel, emissões fugitivas, escopo 2 (consumo de energia elétrica e escopo 3 (transporte, viagens, geração e descarte de resíduos sólidos, seguindo metodologias recomendadas pelo Programa Brasileiro GHG Protocol. Dentre as fontes de emissão, a mais difícil de quantificar foi justamente a principal geradora, relacionada com os deslocamentos entre o campus e as residências dos 20 mil potenciais frequentadores diários da PUC-Rio durante 2011.

Tratamento de esgoto sanitário em sistemas alagados construídos cultivados com lírio-amarelo

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Prata,Renata C. C.; Matos,Antonio T. de; Cecon,Paulo R.; Monaco,Paola A. V. Lo; Pimenta,Leonardo A.

2013-01-01

Neste artigo, avaliou-se a eficiência de quatro sistemas alagados construídos (SACs) no tratamento de esgoto sanitário após ser submetido a tratamento preliminar e, no caso de alguns SACs, a tratamento primário (tanque séptico). Os SACs foram cultivados com lírio-amarelo (Hemerocallis flava), tendo a brita #0 como meio suporte, e submetidos às taxas de carregamento orgânico (TCO) de esgoto sanitário, em termos de DBO (kg ha-1 d-1), de 44; 98; 230 e 395 kg ha-1 d-1 e tempos de detenção hidrául...

Helminth communities of two populations of Myotis chiloensis (Chiroptera: Vespertilionidae from Argentinean Patagonia

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Antonella C. Falconaro

2018-04-01

Full Text Available Most of the studies on chiropteran endoparasites in Argentina come from the Central and Northeast regions of the country, and there is only one parasitological study of bats from the Argentinean Patagonia. The aim of this study is to describe the helminth fauna of 42 Myotis chiloensis, comparing the composition and the structure of the endoparasite communities between two populations, inhabiting different environments in Andean humid forest and the ecotone between forest and Patagonian steppe. A total of 697 helminths were recovered from 33 bats: five species of trematodes, Ochoterenatrema sp., Paralecithodendrium sp., Parabascus limatulus, Parabascus sp., and Postorchigenes cf. joannae, two species of cestodes, Vampirolepis sp. 1 and Vampirolepis sp. 2, and three species of nematodes, Allintoshius baudi, Physaloptera sp., and Physocephalus sp. All the helminths, but Physocephalus sp., were recovered from the small and large intestine. This is the first survey of M. chiloensis’ helminth fauna. All the species, but A. baudi, represent new records of helminths in Patagonian bats. There were differences of parasite species richness between localities and both bat populations share almost half of the endoparasite species. Different preferences for intestinal regions were found for three species of trematodes in the bats from the site in the humid forest. Myotis chiloensis serves as both a definitive and intermediate host for endoparasites in the Patagonian ecosystem. Keywords: Bats, Parasites, South America

A new species of Ascocotyle (Trematoda: Heterophyidae) from the South American sea lion, Otaria flavescens, off Patagonia, Argentina.

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Hernández-Orts, Jesús Servando; Montero, Francisco Esteban; Crespo, Enrique Alberto; García, Néstor Aníbal; Raga, Juan Antonio; Aznar, Francisco Javier

2012-08-01

We describe a new heterophyid species, Ascocotyle (Ascocotyle) patagoniensis n. sp., based on specimens collected from the intestines of the South American sea lion Otaria flavescens from Patagonia (Argentina). Ascocotyle (A.) patagoniensis n. sp. is distinguished from the other species of the subgenus by the number of circumoral spines, which are arranged in 2 rows of 18 to 23. The new species also differs from the other species in having a gonotyl without papillae. The specimens exhibited the widest seminal receptacle described for a species of this subgenus. Species of the subgenus Ascocotyle usually infect fish-eating birds or mammals in freshwater or brackish habitats. Ascocotyle (A.) patagoniensis n. sp. is the first species of the subgenus described from a marine mammal. However, no metacercariae of Ascocotyle spp. were found in 542 marine teleosts from 20 species collected in the same locality. The life cycle of the marine species from the Ascocotyle -complex infecting pinnipeds remains elusive.

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Firewood Resource Management in Different Landscapes in NW Patagonia

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Daniela V. Morales

2017-09-01

Full Text Available Ecosystems, their components, processes and functions are all subject to management by human populations, with the purpose of adapting the environments to make them more habitable and ensuring the availability and continuity of subsistence resources. Although a lot of work has been carried out on resources of alimentary or medicinal interest, little has been done on associating processes of domestication with firewood extraction, a practice considered to be destructive of the environment. In the arid steppe of NW Patagonia, inhabited and managed for different purposes for a long time by Mapuche-Tehuelche communities, the gathering of combustible plant species has up to the present time played a crucial role in cooking and heating, and work is required to achieve sustainability of this resource. In this study we evaluate whether environments with less landscape domestication are more intensively used for firewood gathering. Using an ethnobiological approach, information was obtained through participant observation, interviews and free listing. The data were examined using both qualitative and quantitative approaches. Twenty-eight firewood species are gathered, both native (75% and exotic (25%. The supply of firewood mainly depends on gathering from the domesticated (10 species, semi-domesticated (17 species and low human intervention landscapes (17 species. In contrast to our hypothesis, average use intensity is similar in all these landscapes despite their different levels of domestication. That is, the different areas are taken advantage of in a complementary manner in order to satisfy the domestic demand for firewood. Neither do biogeographic origin or utilitarian versatility of collected plants vary significantly between the different landscape levels of domestication. Our results show that human landscape domestication for the provision of firewood seems to be a socio-cultural resilient practice, and shed new light on the role of culture in

Mesohabitats, fish assemblage composition, and mesohabitat use of the Rio Grande silvery minnow over a range of seasonal flow regimes in the Rio Grande/Rio Bravo del Norte, in and near Big Bend National Park, Texas, 2010-11

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Moring, J. Bruce; Braun, Christopher L.; Pearson, Daniel K.

2014-01-01

In 2010–11, the U.S. Geological Survey (USGS), in cooperation with the U.S. Fish and Wildlife Service, evaluated the physical characteristics and fish assemblage composition of mapped river mesohabitats at four sites on the Rio Grande/Rio Bravo del Norte (hereinafter Rio Grande) in and near Big Bend National Park, Texas. The four sites used for the river habitat study were colocated with sites where the U.S. Fish and Wildlife Service has implemented an experimental reintroduction of the Rio Grande silvery minnow (Hybognathus amarus), a federally listed endangered species, into part of the historical range of this species. The four sites from upstream to downstream are USGS station 08374340 Rio Grande at Contrabando Canyon near Lajitas, Tex. (hereinafter the Contrabando site), USGS station 290956103363600 Rio Grande at Santa Elena Canyon, Big Bend National Park, Tex. (hereinafter the Santa Elena site), USGS station 291046102573900 Rio Grande near Ranger Station at Rio Grande Village, Tex. (hereinafter the Rio Grande Village site), and USGS station 292354102491100 Rio Grande above Stillwell Crossing near Big Bend National Park, Tex. (hereinafter the Stillwell Crossing site).

Itinerário dos usuários de medicamentos via judicial no estado do Amazonas, Brasil

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Marselle Nobre de Carvalho

2014-12-01

Full Text Available Este artigo teve como objetivo analisar o itinerário dos usuários que tiveram acesso a medicamentos via judicial no estado do Amazonas, Brasil. Trata-se de estudo qualitativo, prospectivo, baseado em dados coletados por meio de entrevistas semiestruturadas com usuários que receberam medicamentos via mandado judicial. A judicialização na saúde mostrou-se um fator agregador ao reconhecimento dos direitos e da cidadania pelos usuários que, na sua trajetória de vida, acabaram adquirindo um grande aprendizado sobre formas de enfrentar a falta de acesso aos medicamentos. Conclui-se que a relação entre o sujeito e o Estado permanece desigual, e o direito à saúde se deu na dimensão individual e restritiva, desconsiderando a dimensão coletiva e a concepção de cidadania.

Albuquerque/Middle Rio Grande Urban Waters Viewer

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These data have been compiled in support of the Middle Rio Grande/Albuquerque Urban Waters Partnership for the region including Albuquerque, New Mexico.The Middle Rio Grande/Albuquerque Urban Waters Federal Partnership is co-chaired by the U.S. Dept. of Housing and Urban Development and the U.S. Environmental Protection Agency. There are also a number of other federal agencies engaged in projects with Tribal, State, and local officials, and community stakeholders. Like many western river ecosystems, the Middle Rio Grande faces numerous challenges in balancing competing needs within a finite water supply and other resource constrains. Historical practices by our ancestors and immigrants to the Middle Rio Grande have established the conditions that we have inherited. Long-term drought exacerbated by climate change is changing conditions that affect natural and human communities as we strive to improve our precious Rio Grande.The Middle Rio Grande/Albuquerque Urban Waters Federal Partnership will reconnect our urban communities, particularly those that are overburdened or economically distressed, with the waterway by improving coordination among federal agencies and collaborating with community-led revitalization efforts. Our projects will improve our community water systems and promote their economic, environmental and social benefits. Specifically, the Middle Rio Grande/Albuquerque Urban Waters Federal Partnership will support the development of the Valle de Oro

O Barão do Rio Branco no Itamaraty (1902-1912 Baron of Rio Branco in Itamaraty (1902-1912

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Clodoaldo Bueno

2012-12-01

Full Text Available Os cem anos do fim da gestão do Barão do Rio Branco no Ministério das Relações Exteriores do Brasil coincidem com um momento politicamente propício para se revisitar o legado do patrono da diplomacia brasileira, em especial o referente aos Estados Unidos e ao Prata, os dois principais eixos das relações externas do País. Examinam-se o teor das relações com a potência hegemônica do hemisfério e o caráter oscilante daquelas com a Argentina. A partir de fontes primárias e bibliográficas, o autor procura demonstrar que Rio Branco, além do fechamento dos limites do território nacional, firmou tendências e procedimentos que se incorporaram à tradição da diplomacia brasileira, analisando, para isso, a função do alinhamento Rio de Janeiro-Washington no conjunto da política externa do chanceler e o padrão das relações com o governo argentino, fatores que influenciaram seus movimentos no entorno geográfico. A política de prestígio desenvolvida por Rio Branco decorreu da aspiração em diferenciar seu país do conjunto de nações do segmento sul do hemisfério, identificadas com convulsões políticas e insolvência financeira.The hundredth anniversary of the end of Baron of Rio Branco's administration at the Brazilian Ministry of External Relations matches with a politically favorable moment for examining the legacy of the patron of the Brazilian Diplomacy, especially concerning the United States and the Río de la Plata, the two main axes of Brazilian foreign relations. It examines the content of the relations with the hemisphere's hegemonic power and the oscillating nature of the relations with Argentina. Using primary and bibliographic sources, the author aims to demonstrate that, in addition to accomplishing the process of delimiting the country's boundaries, Rio Branco established trends and procedures which were incorporated into the Brazilian Diplomatic Tradition. For this, the author analyzes the role the Rio de

Southern westerly winds: a pacemaker of Holocene glacial fluctuations in Patagonia?

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Sagredo, E. A.; Reynhout, S.; Kaplan, M. R.; Patricio, M. I.; Aravena, J. C.; Martini, M. A.; Schaefer, J. M.

2017-12-01

A well-resolved glacial chronology is crucial to compare sequences of glacial/climate events within and between regions, and thus, to unravel mechanisms underlying past climate changes. Important efforts have been made towards understanding the Holocene climate evolution of the Southern Andes; however, the timing, patterns and causes of glacial fluctuations during this period still remain elusive. Recent advances in terrestrial cosmogenic nuclide surface exposure dating, together with the establishment of a Patagonian 10Be production rate, have opened new possibilities for establishing high-resolution glacial chronologies at centennial/decadal scale. Here we present a 10Be surface exposure chronology of fluctuations of a small, climate-sensitive mountain glacier at Mt. Fitz Roy area (49.3°S), spanning from the last glacial termination to the present. Thirty new 10Be ages show glacial advances and moraine building events at 17.1±0.9 ka, 13.5±0.5 ka, 10.2±0.7 ka or 9.9±0.5 ka, 6.9±0.2 ka, 6.1±0.3 ka, 4.5±0.2 ka and 0.5±0.1 ka. Similar to the pattern observed in New Zealand, this sequence features progressively less extensive glacial advances during the late-glacial and early Holocene, followed by advances of roughly similar extent during the mid- to late-Holocene. We suggest that while the magnitude of Holocene glacial fluctuations in Patagonia is modulated by SH summer insolation ("modulator"), the specific timing of these glacial events is influenced by centennial-scale shifts of the Southern Westerly Winds ("pacemaker").

Autolysis at the disintegrin domain of patagonfibrase, a metalloproteinase from Philodryas patagoniensis (Patagonia Green Racer; Dipsadidae) venom.

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Peichoto, María E; Paes Leme, Adriana F; Pauletti, Bianca A; Batista, Isabel Correia; Mackessy, Stephen P; Acosta, Ofelia; Santoro, Marcelo L

2010-09-01

Patagonfibrase is a 57.5-kDa hemorrhagic metalloproteinase isolated from the venom of Philodryas patagoniensis (Patagonia Green Racer), a South American rear-fanged snake. Herein we demonstrate that patagonfibrase undergoes autolysis at its pH optimum (7.5) and at 37 degrees C, primarily producing a approximately 32.6 kDa fragment composed of disintegrin-like and cysteine-rich domains, as identified by mass spectrometry and N-terminal sequencing. The autolysis site for production of this fragment is similar to that observed for metalloproteinases from front-fanged Viperidae snake venoms. In the presence of Ca(2+), patagonfibrase was only partially autolysed, giving rise mainly to one fragment of approximately 52.2 kDa. In addition, calcium markedly enhanced the azocaseinolytic activity of patagonfibrase. Our findings contribute to the understanding of the structural and mechanistic bases of this family of metalloenzymes that are widely distributed among snake venoms, demonstrating that important post-translational modifications such as proteolysis can also contribute to the diversity and complexity of proteins found in rear-fanged snake venoms. Copyright © 2010 Elsevier B.V. All rights reserved.

Record of Pleopis schmackeri (Poppe Branchiopoda in Rio das Ostras, Rio de Janeiro, Brazil

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Wanda Maria Monteiro-Ribas

2013-03-01

Full Text Available The paper describes the first occurrence of Pleopis schmackeri (Poppe, 1889 (Branchiopoda, Onychopoda in Rio das Ostras, Rio de Janeiro, Brazil is described. This marine cladoceran species occurred in zooplanktonic samples obtained on July, 2003 with mean density of 10 ind.m-3. Its presence may be related to two hypotheses, due to ballast water and through the Brazilian current, which gets closer to the coast Winter.

Cuatro nuevas especies del género Liolaemus (Iguania: Liolaemidae, pertenecientes al grupo boulengeri, de la Patagonia, Argentina

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Abdala, Cristian Simón

2003-12-01

Full Text Available Se describen cuatro nuevas especies del género Liolaemus, pertenecientes al grupo boulengeri, caracterizado por la presencia de un parche femoral de escamas agrandadas en la parte posterior del fémur. Una especie fue colectada en el sur de la provincia de Neuquén y las otras tres en el suroeste, centro y este de la provincia de Río Negro, en la Patagonia Argentina. Dentro del grupo las nuevas especies están relacionadas fenéticamente a Liolaemus boulengeri. Se estudiaron 98 caracteres morfológicos externos, referidos principalmente a caracteres de lepidosis, patrón de coloración y proporciones corporales, corrientemente estudiados en Liolaemus. Las diferencias más significativas entre estas especies y Liolaemus boulengeri se dan principalmente en el patrón de coloración y en algunos caracteres de escamación. Estas especies ocupan parte de las tres regiones patagónicas que se diferencian con base en la orografía y vegetación asociada. Las nuevas especies del centro y suroeste de la provincia de Río Negro, soportan grandes diferencias de temperatura diarias y estacionales. Las cuatro especies que se describen aquí se alimentan principalmente de insectos. Four new species of Liolaemus are described from the Patagonia region of southern Argentina. One species was collected in southern Neuquén Province and the other three are from Río Negro Province. Each of the new species has a patch of enlarged scales on the posterior surface of the thighs, indicating their relationship to members of the boulengeri group. Within this group, the four new species are morphologically most similar, and may be most closely related to, Liolaemus boulengeri. A total of 98 external morphological characters, principally squamation, color pattern, and body proportions, were recorded for these new members of the boulengeri group and compared with those for Liolaemus boulengeri. Significant differences between the new species and Liolaemus boulengeri were

Análisis de sistema de conversores fluido-dinámicos de energía renovable para la Patagonia Austral de Argentina

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Carlos Victor Manuel Labriola

2014-06-01

Full Text Available El potencial de energía en mares y océanos se puede clasificar de distintas formas, por ejemplo: * La energía de las mareas ó Mareomotriz * La energía de las corrientes marinas * La energía de las olas ó Undimotriz * La energía térmica oceánica (OTEC. De estas formas de energía oceánica, tres son posibles en la zona Atlántica de nuestra Patagonia Austral, la Mareomotriz, la Undimotriz y la de corrientes marinas. La Energía Mareomotriz se da desde Viedma hasta Tierra del Fuego con amplitudes de mareas de 4m hasta 20m, la Energía de las Olas se da en la costa de Chubut y Santa Cruz con potenciales de 10 a 30kW/m lineal de frente de ola y el aprovechamiento de las corrientes marinas se puede dar en lugares puntuales como ser la desembocadura del río Deseado o la de Río Gallegos. Para estas Fuentes de Energía se está realizando un banco de pruebas de modelos conversores de las mismas a Energía Eléctrica, en la Unidad Académica Caleta Olivia (UACO de la Universidad Nacional de la Patagonia Austral (UNPA. Este banco dispondrá de dos canales de ensayos hidrodinámicos uno para energía de las corrientes marinas y otro para las olas. El primero dispondrá de una bomba de circulación con velocidad de fluido variable entre 0 y 4m/s. El banco para olas tendrá un sistema de batido del agua para producir ondas de amplitud y período variable. Además se están dimensionando dos modelos de conversores de energía oceánica. Uno es una turbina, tipo eólica sumergida y el otro modelo es de tubo electromecánico oscilante como conversor energético de las olas.

Late Cretaceous paleosols as paleoclimate proxies of high-latitude Southern Hemisphere: Mata Amarilla Formation, Patagonia, Argentina

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Varela, Augusto N.; Raigemborn, M. Sol; Richiano, Sebastián; White, Tim; Poiré, Daniel G.; Lizzoli, Sabrina

2018-01-01

Although there is general consensus that a global greenhouse climate characterized the mid-Cretaceous, details of the climate state of the mid-Cretaceous Southern Hemisphere are less clearly understood. In particular, continental paleoclimate reconstructions are scarce and exclusively derived from paleontological records. Using paleosol-derived climofunction studies of the mid- to Upper Cretaceous Mata Amarilla Formation, southern Patagonia, Argentina, we present a reconstruction of the mid-Cretaceous climate of southern South America. Our results indicate that at 60° south paleolatitude during the Cenomanian-Santonian stages, the climate was subtropical temperate-warm (12 °C ± 2.1 °C) and humid (1404 ± 108 mm/yr) with marked rainfall seasonality. These results are consistent with both previous estimations from the fossil floras of the Mata Amarilla Formation and other units of the Southern Hemisphere, and with the previous observations of the displacement of tropical and subtropical floras towards the poles in both hemispheres. The data presented here show a more marked seasonality and slightly lower mean annual precipitation and mean annual temperature values than those recorded at the same paleolatitudes in the Northern Hemisphere.

Reproductive biology of Sympterygia bonapartii (Chondrichthyes: Rajiformes: Arhynchobatidae in San Matías Gulf, Patagonia, Argentina

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María L. Estalles

2017-04-01

Full Text Available ABSTRACT This study estimates and analyses the reproductive parameters and cycle of Sympterygia bonapartii in San Matías Gulf, northern Patagonia, Argentina. A total of 827 males and 1,299 females were analysed. Males ranged from 185 to 687 mm of total length (TL and females from 180 to 742 mm TL. Sexual dimorphism was detected; females were larger, heavier, exhibited heavier livers, wider discs and matured at lager sizes than males. Immature females ranged from 180 to 625 mm TL, maturing females from 408 to 720 mm TL, mature ones from 514 to 742 mm TL and females with egg capsules from 580 to 730 mm TL. Immature males ranged from 185 to 545 mm TL, maturing ones from 410 to 620 mm TL and mature males from 505 to 687 mm TL. Size at which 50% of the skates reached maturity was estimated to be 545 mm TL for males and 594 mm TL for females. According to the reproductive indexes analysed, S. bonapartii exhibited a seasonal reproductive pattern. Mating may occur during winter-early spring and the egg-laying season, during spring and summer.

Late Pleistocene ecological, environmental and climatic reconstruction based on megafauna stable isotopes from northwestern Chilean Patagonia

Science.gov (United States)

González-Guarda, Erwin; Domingo, Laura; Tornero, Carlos; Pino, Mario; Hernández Fernández, Manuel; Sevilla, Paloma; Villavicencio, Natalia; Agustí, Jordi

2017-08-01

Stable isotope analyses have been performed on the bioapatite (δ13C; δ18O) and collagen (δ13C; δ15N) of four late Pleistocene South American megafaunal taxa (Notiomastodon platensis, Equus andium, cf. Hemiauchenia paradoxa and Xenarthra indet.) to evaluate paleoclimatic and paleoenvironmental conditions as well as paleoecological features of this time period. The analyzed megafauna was found at several locations in the northwestern Chilean Patagonia (38°-42°S, 74°-71°W). The bioapatite δ13C values indicated the presence of C3 vegetation ranging from forestal to woodland areas. The collagen δ15N values pointed to temperate and humid ecosystems, and to the consumption of shrubs, trees, grasses and sedges. Mean annual temperatures estimated from bioapatite δ18OPO4 values show a similarity to modern temperatures and suggested that the megafauna under study may have lived during warm stages (interstadials) of the late Pleistocene. When comparing our results with those obtained from other South American regions, we find that the diet of this particular Chilean megafauna appears to have been more influenced by resource availability than by the potential dietary range of the taxa.

Chemosensory perception and medicinal plants for digestive ailments in a Mapuche community in NW Patagonia, Argentina.

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Molares, Soledad; Ladio, Ana

2009-06-25

To document the richness of plant species used in gastrointestinal disorders and to investigate about the criteria of aroma and flavor associated with its recognition, classification, selection and use. Ethnobotanical fieldwork consisted of interviews to 30 inhabitants living in a Mapuche community of Northwestern Patagonia; data collected was analyzed by means of non-parametric statistics. This work records 75 ethnospecies, pertaining to 40 botanic families. Lamiaceae, Asteraceae and Chenopodiaceae were the most frequently mentioned and described in terms of smell and taste. Most of species (69%) have notable aroma and/or flavor characteristics. The species presenting highest consensus in the population are positively associated with a higher frequency of organoleptic descriptions. In addition, local people consider these perceptions to be potentially useful in the search for substitutes when species are scarce or disappear from a locality. It is possible to establish a preliminary system of classification of medicinal plants based on their organoleptic characteristics and relate this to their effects on health. Moreover the cultural interpretation of smell and taste is of great heuristic importance to ethnopharmacology, in that it indicates which plants are most likely to contain the main active ingredients sought.

Do native grazers from Patagonia, Argentina, consume the invasive kelp Undaria pinnatifida? ¿Pueden los pastoreadores nativos de Patagonia, Argentina, consumir al alga invasora Undaria pinnatifida?

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S. Valeria Teso

2009-06-01

Full Text Available The invasive kelp Undaria pinnatifida (Phaeophyceae, Laminariales was first reported in Golfo Nuevo in 1992 and since then it has spread widely over more than 170 km, all along the northern Patagonian coast, Argentina. Field observations in the region have indicated the potential role of invertebrate grazers, like the sea urchins Arbacia dufresnii and Pseudechinus magellanicus and the gastropod Tegula patagonica, in controlling algal density. Laboratory experiments were conducted to ascertain whether, and if so, to what extent these grazers actually feed on the algae. The studied sea urchins fed on the alga, whereas the snail scraped off biofouling adhered to its surface. Higher densities of grazers were observed on the kelp during summer and might be attributed to increasing in metabolism with increasing temperature, and degradation of blades and sporophylls, which possibly increase their palatability.El alga invasora Undaria pinnatifida (Phaeophyceae, Laminariales fue reportada por primera vez en Golfo Nuevo en 1992, dispersándose ampliamente a lo largo de 170 km de costa en el norte de la Patagonia, Argentina. Observaciones de campo hechas en los erizos de mar Arbacia dufresnii y Pseudechinus magellanicus y en el gasterópodo Tegula patagonica evidenciaron que son posibles consumidores de Undaria pinnatifida en la población local. Se realizaron experimentos de laboratorio con el objetivo de probar si estos pastoreadores eran capaces de consumir el alga. Los erizos de mar estudiados consumen el alga, mientras que el gasterópodo ramonea los epibiontes presentes sobre su superficie. Altas densidades de ramoneadores fueron encontradas sobre el alga durante el verano y podrían ser atribuidas a un aumento del su metabolismo con el aumento de la temperatura y a la degradación de las láminas y esporofilos, lo cual posiblemente aumente la palatabilidad del alga.

Aspectos de leiaute e de design de lojas de vestuário: estudo da percepção dos usuários

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Márcia Machado França

2017-05-01

Full Text Available Esta pesquisa tem como objetivo analisar o leiaute e os elementos do design tais como: iluminação, mobiliário presentes nos espaços da rede de varejo do vestuário do modelo fast fashion e a influência destes na percepção dos usuários. Foram realizadas entrevistas semiestruturadas e observação não participante com os usuários destes espaços, buscando informações da interação deles com o ambiente. A revisão da literatura abordou os seguintes tópicos: design de lojas, modelo fast fashion, varejo de moda e usuários do vestuário. Por meio dos dados da pesquisa será possível identificar possíveis obstáculos do ambiente de loja para poder gerar melhores alternativas deste espaço ao usuário. Esta pesquisa aponta para abertura de novas oportunidades de exploração do design de lojas nos segmentos de varejo, por meio dos levantamentos obtidos nesta pesquisa.

Saturación del carbonato de calcio en un área de cultivo de mitílidos en el Seno Reloncaví, Patagonia norte, Chile

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Emilio Alarcón

2015-05-01

Full Text Available Se realizaron mediciones de temperatura, salinidad, alcalinidad total y carbono inorgánico disuelto del agua de mar superficial dentro de un área dedicada a la producción de semillas de mitílidos en el Seno de Reloncaví, Patagonia norte, durante el otoño (mayo 2012 y el verano austral (enero 2013. Se determinó que el estado de saturación del carbonato de calcio (ΩCaCO3 dentro del área de estudio fue bajo (Ωaragonita < 2, inclusive con aguas superficiales "corrosivas" para el CaCO3 (i.e., aguas subsaturadas, Ω < 1, cuando aguas de baja salinidad (<28 y alcalinidad total (<1.800 μmol kg-1 fueron advectadas dentro del centro de producción en mayo de 2012. En enero 2013 la baja salinidad (<25 fue asociada a aguas de baja alcalinidad total (ca. 1700 μmol kg-1 provocando bajos niveles de Ωaragonita en aguas superficiales equilibradas totalmente con la atmósfera (i.e., 400 μatm. Así, se sugiere que eventos corrosivos para el CaCO3 (i.e., aguas subsaturads Ω < 1 pueden ser una condición frecuente en esta área de producción de mitílidos en la Patagonia norte. La potencial disminución en productividad de Mytilus chilensis asociados a la acidificación del océano (AO recientemente descrita por Navarro et al. (2013 y la detección de aguas corrosivas para el carbonato de calcio encontradas, sugieren la necesidad de incluir el monitoreo regular del sistema carbonatos como una variable clave para la evaluación de la capacidad de carga de este sistema de aguas interiores.

Teorias do abuso no planejamento tributário

OpenAIRE

Luís Flávio Neto

2011-01-01

O presente estudo analisa teorias do abuso no planejamento tributário. Inicialmente, busca-se definir e diferenciar planejamento tributário, planejamento tributário abusivo e evasão fiscal, partindo-se da premissa de que compete a cada Estado estabelecer, de forma peculiar, quais os critérios devem ser adotados para a identificação dessas figuras em seu ordenamento jurídico. Analisam-se os princípios constitucionais que podem ser ponderados no Brasil em relação a esse tema. Diante das teses q...

Uso del agua y productividad de los bosques nativos e implantados en el NO de la Patagonia: aproximaciones desde la ecohidrología y la ecofisiología

OpenAIRE

Gyenge, Javier E; Fernández, M Elena; Licata, Julián; Weigandt, Mariana; Bond, Barbara J; Schlichter, Tomás M

2011-01-01

Existe preocupación por el posible uso excesivo de agua de las forestaciones con especies exóticas de rápido crecimiento en comparación con las especies nativas a las cuales reemplazan en la región NO de la Patagonia. Debido a ello, se han realizado estudios de productividad, consumo y eficiencia en el uso del agua tanto en plantaciones de especies exóticas como en sistemas vegetales naturales en zonas con distintos niveles de déficit hídrico. Esto se llevó a cabo mediante aproximaciones ecoh...

Os limiares planetários, a Rio+20 e o papel do Brasil

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Eduardo Viola

Full Text Available Neste artigo consideramos os problemas ambientais globais dentro do conceito de limiares planetários, em convergência com os últimos avanços das ciências naturais. Nesse contexto, nosso objetivo é explorar o papel do Brasil na governança do espaço de operação seguro para a humanidade, avaliando como o país complementa o enorme capital ambiental físico que possui com ações políticas específicas orientadas para uma economia verde de baixo carbono (EVBC, tanto no âmbito doméstico quanto no internacional. Para atingir essa meta, em primeiro lugar discutimos conceitualmente a economia verde de baixo carbono como paradigma de desenvolvimento compatível com um espaço de operação seguro para a humanidade; em segundo lugar, analisamos a Rio+20 pelo prisma da governança global dos limiares planetários e pela atuação brasileira na Cúpula; e finalmente fazemos um diagnóstico da situação do Brasil em relação ao novo paradigma de desenvolvimento. Como conclusões da análise, destacamos a crescente distância entre a aceleração dos problemas da interdependência - especialmente a definição de um espaço seguro de operação para a humanidade - e os mecanismos globais de governança existentes, derivada de um sistema internacional bloqueado e dominado por forças conservadoras. O resultado frustrante da Rio+20 é evidência clara dessa defasagem. Nessa dinâmica, o Brasil tem o potencial para ser um ator central da governança dos limiares planetários, por seu vasto capital ambiental físico. No entanto, o mínimo avanço da EVBC no país degrada essa capacidade de agência, e o torna uma potência ambiental subdesenvolvida (underachiever environmental power.

Biological invasion of Pinus ponderosa and Pinus contorta: case study of a forest plantation in Northwestern Patagonia; Invasion biologica de Pinus ponderosa y Pinus contorta: estudio de caso de una plantacion en la Patagonia noroccidental

Energy Technology Data Exchange (ETDEWEB)

Dezzotti, A.; Sbrancia, R.; Mortoro, A.; Monte, C.

2009-07-01

In the Southern Hemisphere, Pinus species from plantations can bring about processes of biological invasion that cause significant and permanent changes on the structure and functioning of surrounding natural ecosystems. The invasive character of Pinus ponderosa (P) and Pinus contorta (C) was examined for a 20-year old plantation located in the Alicura Forest Station (40 degree centigrade 40' S and 71 degree centigrade 00' W), through the analysis of abundance, age and spatial structures, and dispersal of natural regeneration. Seedlings and saplings were located largely within the plantation boundaries, and exhibited a density of 6.9 ind / ha (41 % for P and 59 % for C), a clustered spatial pattern with clumps dispersed not randomly, and a mean dispersal rate of 9.5 m / yr for P. ponderosa and 5.4 m / yr for P. contorta. Both species were invading the adjacent area, according to technical criteria based on ecological responses. However, regeneration niche is strongly hindering tree establishment and dispersal, probably due to high plant cover, presence of vertic soils, and absence of ectomycorrhizal fungi. These results can contribute to predict the capability of P. contorta and P. ponderosa to become invasive, in order to maximize the positive balance of forestry based on these species in northwestern Patagonia. (Author) 50 refs.

PRONTUÁRIO ELETRÔNICO DO PACIENTE: REVISÃO DE LITERATURA

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Luan Barbosa Hubner

2017-03-01

Full Text Available O prontuário eletrônico é uma ferramenta de grande auxilio para gestão em unidade básica de saúde (UBS, hospitais e clinicas. Quando falamos de prontuário eletrônico percebemos que possui vários nomes, como: Prontuário do Paciente, Prontuário Familiar, Prontuário Médico, Prontuário Hospitalar, Registro do Paciente entre outros. Com a ideia de melhorar o atendimento dos pacientes, garantir segurança para os dados e manter um histórico do paciente da sua vida toda, se seu uso for bem trabalhado com cuidado e alimentado o sistema corretamente irá ser de grande aproveitamento e ajuda para a instituição. Diante disto o objetivo do presente estudo é uma revisão de literatura, para avaliar a eficácia da implantação de um prontuário eletrônico. Nenhum estudo mostrou que o prontuário teve efeito negativo em sua implantação, apenas apresenta algumas desvantagens, sendo a implantação do prontuário eletrônico de grande valia em UBS que ainda não os possuem.

Allochthonous subsidies of organic matter across a lake-river-fjord landscape in the Chilean Patagonia: Implications for marine zooplankton in inner fjord areas

Science.gov (United States)

Vargas, Cristian A.; Martinez, Rodrigo A.; San Martin, Valeska; Aguayo, Mauricio; Silva, Nelson; Torres, Rodrigo

2011-03-01

Ecosystems can act as both sources and sinks of allochthonous nutrients and organic matter. In this sense, fjord ecosystems are a typical interface and buffer zone between freshwater systems, glaciated continents, and the coastal ocean. In order to evaluate the potential sources and composition of organic matter across fjord ecosystems, we characterized particulate organic matter along a lake-river-fjord corridor in the Chilean Patagonia using stable isotope (δ 13C) and lipid (fatty acid composition) biomarker analyses. Furthermore, estimates of zooplankton carbon ingestion rates and measurements of δ 13C and δ 15N in zooplankton (copepods) were used to evaluate the implications of allochthonous subsidies for copepods inhabiting inner fjord areas. Our results showed that riverine freshwater flows contributed an important amount of dissolved silicon but, scarce nitrate and phosphate to the brackish surface layer of the fjord ecosystem. Isotopic signatures of particulate organic matter from lakes and rivers were distinct from their counterparts in oceanic influenced stations. Terrestrial allochthonous sources could support around 68-86% of the particulate organic carbon in the river plume and glacier melting areas, whereas fatty acid concentrations were maximal in the surface waters of the Pascua and Baker river plumes. Estimates of carbon ingestion rates and δ 13C in copepods from the river plume areas indicated that terrestrial carbon could account for a significant percentage of the copepod body carbon (20-50%) during periods of food limitation. Particulate organic matter from the Pascua River showed a greater allochthonous contribution of terrigenous/vascular plant sources. Rivers may provide fjord ecosystems with allochthonous contributions from different sources because of the distinct vegetation coverage and land use along each river's watershed. These observations have significant implications for the management of local riverine areas in the context of

MUDANÇAS PALEO-HIDROLÓGICAS NA PLANÍCIE DO RIO PARAGUAI, QUATERNÁRIO DO PANTANAL

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Hudson de Azevedo Macedo

2014-04-01

Full Text Available O Paraguai é o rio-tronco do trato de sistemas deposicionais do Pantanal. Com base em dados de sensores remotos e verificação de campo, foi realizado mapeamento geomorfológico da planície do rio Paraguai no trecho entre as confluências dos rios Cuiabá e Miranda, onde foram reconhecidas formas deposicionais atuais e antigas. A análise das associações de formas permitiu estabelecer proposta de evolução geomorfológica para a área, mas os eventos carecem ainda de datação precisa por métodos geocronológicos. Uma rede de drenagem abandonada multicanais está parcialmente preservada na planície, sendo composta por formas de canais com diques marginais que evidenciam período de menor descarga fluvial, provavelmente do Pleistoceno tardio ao Holoceno inferior. Um sistema constituído por paleocinturões de meandros trunca a paleorrede de drenagem multicanais, registrando aumento na umidade e na descarga fluvial. Sob essas condições o rio Paraguai construiu um sistema composto por cinturões de meandros com direção aproximada norte-sul no Holoceno inferior/médio. Agradação dos cinturões favoreceu importante evento de avulsão, com a mudança do curso do rio Paraguai para o cinturão de meandros atual no Holoceno superior. As gerações de formas identificadas e mapeadas resultaram num padrão de sobreposição de diferentes estilos fluviais, que registram significativas mudanças hidrológicas na planície desde o Pleistoceno tardio.

CARACTERIZAÇÃO GEOMORFOLÓGICA DA BACIA DO RIO TURVO-RJ: MÉDIO VALE DO RIO PARAÍBA DO SUL (MVPRS

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Rafael Albuquerque Xavier

2014-04-01

Full Text Available O mapeamento geomorfológico da bacia do rio Turvo confirmou as evidências apontadas em estudos anteriores, de que a bacia apresentava feições diferentes das observadas em bacias vizinhas. Foram observadas 222 depressões fechadas em divisores de drenagem, indicando forte atuação de mecanismos geoquímicos. Por outro lado, o reduzido número de voçorocas (33 e a presença de pacotes sedimentares poucos espessos (média de 7 metros, apontam a baixa efetividade dos processos mecânicos na bacia, sobretudo ao compararmos com a sub-bacia do rio Piracema, tributária do rio Bananal, com 117 voçorocas, terraços de até 23 metros de espessura e apenas 1 depressão fechada. Internamente, a bacia do rio Turvo apresentou variações, onde, de modo geral, a sub-bacia do rio das Pedras concentrou 21 das 33 voçorocas ativas, os mais espessos pacotes fluviais e apenas 16 depressões fechadas. Assim, conclui-se que a bacia do rio Turvo é fortemente influenciada pelos processos de denudação química, e a sub-bacia do rio das Pedras apresenta as maiores características da atuação do trabalho mecânico de toda a bacia.

Polen y vegetación en la Patagonia extraandina argentina a 45º S

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Burry, Lidia S.

2005-12-01

Full Text Available Modern pollen dispersal and deposition in relation to vegetation and environmental variables at 45° S was studied in Argentinian Patagonia east of the Andes to build a modern pollen model. This model will serve to identify modern pollen assemblages that are analog of past pollen assemblages. A west-to-east gradient of decreasing precipitation and increasing temperature determines four vegetation units: (1 grass steppe, (2 grass-bush steppe, (3 bush steppe and (4 bush-brush steppe. Pollen samples were analyzed by classification and ordination methods, and correlated to environmental variables. The steppes (a dominated by the functional type grass, (1 grass steppe, and (2 grass-bush steppe located in the more humid and cooler west end of the region were separated from the (b bush-dominated steppes (3 bush steppe and (4 bush-brush steppe occurring in the central and eastern parts of the region, where conditions are drier and warmer. Azonal communities were identified as halophytic bush steppes within different vegetation units along the west-east gradient. Environmental variables related to vegetation distribution are temperature and interannual precipitation variability associated with the precipitation gradient from the cordillera to the coast, and soil salinity in the case of azonal communities.Se investigó la relación de la dispersión-deposición del polen actual con la vegetación y con variables ambientales en la Patagonia extraandina argentina a 45° S con el fin de construir un modelo polínico actual. Este modelo servirá para identificar los conjuntos polínicos actuales que sean análogos de conjuntos polínicos fósiles. En la región hay un gradiente decreciente de precipitación y creciente de temperatura de oeste a este, que determina la existencia de diferentes unidades de vegetación: (1 estepa graminosa; (2 estepa graminosa-arbustiva; (3 estepa arbustiva y (4 estepa arbustiva-matorral. Los datos de polen de muestras de suelo

Record of Pleopis schmackeri (Poppe Branchiopoda in Rio das Ostras, Rio de Janeiro, Brazil

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Wanda Maria Monteiro-Ribas

2012-10-01

Full Text Available http://dx.doi.org/10.5007/2175-7925.2013v26n1p201 The paper describes the first occurrence of Pleopis schmackeri (Poppe, 1889 (Branchiopoda, Onychopoda in Rio das Ostras, Rio de Janeiro, Brazil is described. This marine cladoceran species occurred in zooplanktonic samples obtained on July, 2003 with mean density of 10 ind.m-3. Its presence may be related to two hypotheses, due to ballast water and through the Brazilian current, which gets closer to the coast Winter.

DEGRADAÇÃO AMBIENTAL DO RIO PAVUNA-MERITI

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Marcos Antonio Braga de Barros

2016-10-01

Full Text Available O Rio Pavuna-Meriti banha em seus últimos 7,4km o município de Duque de Caxias, que segundo dados de 2014 do Instituto Brasileiro de Geografia e Estatísticas (IBGE é a 15ª maior economia do Brasil. Duque de Caxias sofre constantemente com inundações por conta do assoreamento dos rios, além da falta d’água potável que causam grande prejuízo econômico, sociais e à saúde da população. Os problemas de assoreamento existentes neste rio são comuns em outros rios do Brasil, entre suas principais causas estão o lançamento de esgotos sem tratamento, ausência de coleta de lixo, sem falar dos aspectos indiretos como desmatamento de suas margens, ocupação da calha secundária do rio.

Estudo da geometria hidráulica do Rio dos Bugres, no município de Rio Negrinho - SC

OpenAIRE

Grison, Fernando

2013-01-01

Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Ambiental, Florianópolis, 2013. O presente trabalho aplicou a teoria da geometria hidráulica no rio dos Bugres, em várias seções e trechos desse rio. Foi feita uma comparação entre resultados da geometria hidráulica obtidos pelo método clássico proposto por Leopold com derivações analíticas propostas por Dingman. Foram definidos 11 pontos de estudo ao longo do rio dos Bugr...

Monopolizar la violencia en una frontera colonial. Policías y militares en Patagonia austral (Argentina y Chile, 1870-1922

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Alberto Harambour R.

2016-01-01

Full Text Available Este artículo analiza la monopolización de la violencia en el ciclo inicial de colonización de Patagonia austral para lo cual propone, primero, que la precariedad local de los Estados de Argentina y Chile descansó en la fuerza expansiva de la industria ganadera para la instalación de su sobe- ranía territorial; y segundo, que la clausura de la delimitación fronteriza solo se produjo en el verano de 1922, como resultado de la represión a la insurgencia obrera. A partir de una extensa investigación en fuentes oficiales y empresariales referidas a Santa Cruz, Magallanes y Tierra del Fuego, así como en la prensa local, se investiga y compara la presencia de la fuerza policial y militar en las subdivisiones administrativas del extremo sur; además se examinaron similitudes y diferencias en las estra- tegias de control social.

Fatores associados ao atraso no desenvolvimento em crianças, Rio Grande, Rio Grande do Sul, Brasil Factores asociados con retraso en el desarrollo de los niños, Rio Grande, Rio Grande do Sul, Brasil Factors associated with delay in development in children, Rio Grande, Rio Grande do Sul, Brazil

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Aline Alves Veleda

2011-03-01

Full Text Available Estudo analítico com o objetivo de avaliar os fatores associados ao atraso no desenvolvimento em crianças entre 8 a 12 meses de idade indicadas como de risco ao nascer no município do Rio Grande, Rio Grande do Sul, Brasil. Foram utilizados como instrumentos o Teste de Triagem de Desenvolvimento de Denver II (TTDD II, a avaliação antropométrica e questionários estruturados. Participaram 220 crianças consideradas de risco ou não ao nascer. Foi encontrada uma prevalência de 20,5% de suspeita de atraso no desenvolvimento neuropsicomotor. As crianças que apresentaram risco de um TTDD II suspeito faziam parte de famílias de mais baixa renda; eram filhos de mães que haviam realizado menos de seis consultas de pré-natal e apresentavam índice peso-idade inadequado. Os dados sugerem a necessidade de um replanejamento das políticas de saúde infantil, visto que outros critérios poderiam ser incluídos nas condições de risco para a criança ao nascer.Estudio analítico con el objetivo de evaluar los factores asociados al atraso en el desarrollo en niños de 8 a 12 meses de edad indicados como riesgo al nacer en el municipio de Rio Grande, RS, Brasil. Fueron utilizadas como herramientas la Prueba de Tamizaje del Desarrollo de Denver II, la evaluación antropométrica y cuestionarios estructurados. Participaron 220 niños considerados de riesgo o no al nacer. Fue encontrada una prevalencia del 20,5% de sospecha de atraso en el desarrollo neuropsicomotor. Los niños que presentaron riesgo de un DDST II sospechoso formaban parte de familias de más baja renta; eran hijos de madres que habían realizado menos de seis consultas de prenatal y presentaban índice peso-edad inadecuado. Los datos sugieren la necesidad de un replanteamiento de las políticas de salud infantil, así como otros criterios podrían ser inclusos en las condiciones de riesgo para el niño al nacer.This analytical study aims to evaluate the factors associated to

Maconha e contexto familiar: um estudo psicossocial entre universitários do Rio de Janeiro Marijuana and family context: a psychosocial study among university students of Rio de Janeiro

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Violeta Martins Ferreira

2007-04-01

Full Text Available O objetivo deste trabalho foi estudar o contexto familiar de usuários e não-usuários de maconha. Adotamos a teoria das representações sociais de Moscovici (1961/1976, 1988, além de algumas reflexões de Becker (1971 e Foucault (1977, 1994, 1997. Participaram da pesquisa sessenta universitários do Rio de Janeiro, de ambos os sexos, entre 17 e 30 anos. Utilizamos um questionário com perguntas abertas, no qual eles apresentaram seus familiares. O material obtido foi analisado em termos temáticos e estatísticos. Entre os usuários de maconha, prevaleceu a autoridade e a ênfase nos papéis sociais, sendo a interação familiar marcada pelo acento emocional e pela idealização. Entre os não-usuários a autoridade coexistiu com relações interpessoais de companheirismo e partilha, num contexto familiar em que predominaram não aspectos afetivos mas práticas de proteção e cuidados. Podemos afirmar que o papel da família na prevenção ao uso de drogas está associado à promoção da autonomia, diferenciação e garantia de um espaço próprio para o jovem.The objective of this paper was to study the family context among marijuana users and non-users. Moscovici's theory of social representations, as well as some considerations from Becker and Foucault, was used as theoretical basis for data analysis. The empirical research included sixty university students from Rio de Janeiro, 17-30 years old, of both sexes. Using a questionnaire with open questions, we requested participants to freely describe their family members. The answers were treated according to content analysis principles, followed by chi-square tests. The results presented significant differences between both groups. Among marijuana users, authority and emphasis of social roles predominated, family interactions being characterized by emotional emphasis and idealization. Among non-users, authority coexisted with interpersonal relations characterized by fellowship and sharing

Range expansion of Oligoryzomys longicaudatus (Rodentia, Sigmodontinae in Patagonian Chile, and first record of Hantavirus in the region Ampliación del rango de distribución de Oligoryzomys longicaudatus (Rodentia, Sigmodontinae en la Patagonia de Chile y primer registro de Hantavirus en la región

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SEBASTIÁN BELMAR-LUCERO

2009-06-01

Full Text Available At present, 20 species of Oligoryzomys (Rodentia, Sigmodontinae are recognized in the Neotropical region, most of them distinguished by their karyotypes, which fluctuates between 46-70 chromosomes. Two species are currently recognized in Chile, Oligoryzomys longicaudatus (Bennet, 1832; "colilargo" or the long-tailed pygmy rice rat; 2n = 56, which ranges from 27° to approximately 51° S, and O. magellanicus (Bennet, 1836; Magellanic pygmy rice rat; 2n = 54, south of 51° S in the Patagonian region of Chile and Argentina. As part of an ongoing research on the southern Patagonia of Chile, we report the results of small mammal samplings in six localities. We karyotyped 28 specimens and we also sequenced the hypervariable mtDNA region I in 22 individuals, aligning these sequences with an under development phylogeny of O. longicaudatus. We also evaluated the serology and viral charge in all captured specimens to detect the presence of antibodies to Andes virus (ANDV through Strip Immunoblot Assay (SIA, and of viral genome by RT-PCR. The results consistently showed that the karyotype of southern Patagonia specimens was 2n = 56, equal to that of O. longicaudatus, and that individuals from this area do not differentiate phylogenetically from those of the northern range of distribution. In addition, the serology showed the presence of antibodies IgG anti-ANDV and of viral genome in heart, kidney, spleen, and lungs of a single specimen of Oligoryzomys from the locality of Fuerte Bulnes in the Magallanes region. We conclude that all specimens trapped south of 51° S correspond to Oligoryzomys longicaudatus, thus expanding the distribution of this specie! from 51° to at least 55° S. The results also extended the disiribution of the Andes strain of Hantavirus to southernmost Patagonia.Actualmente se reconocen 20 especies de Oligoryzomys (Rodentia, Sigmodontinae en la región Neotropical, la mayoría de ellas distinguidas por sus cariotipos, los que fluct

Sexual dimorphism in the mandible of the armadillo Chaetophractus villosus (Desmarest, 1804) (Dasypodidae) from northern Patagonia, Argentina Dimorfismo sexual da mandíbula do tatu Chaetophractus villosus (Desmarest, 1804) (Dasypodidae) do norte da Patagônia Argentina

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SM. Squarcia; NS. Sidorkewicj; R. Camina; EB. Casanave

2009-01-01

The aim of this study was to study the sexual dimorphism in adult Chaetophractus villosus (Desmarest, 1804), from northern Patagonia, Argentina. Eight mandibular traits were measured in 37 males and 34 females. Univariate and multivariate morphometric analysis were applied to the data set. Results showed that C. villosus was sexually dimorphic, with higher absolute values corresponding to females. The total length of the mandible was the most important variable to discriminate sexes, followed...

Latest Pleistocene and Holocene glacial events in the Colonia valley, Northern Patagonia Icefield, southern Chile

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Nimick, David A.; Mcgrath, Daniel; Mahan, Shannon; Friesen, Beverly A.; Leidich, Jonathan

2016-01-01

The Northern Patagonia Icefield (NPI) is the primary glaciated terrain worldwide at its latitude (46.5–47.5°S), and constraining its glacial history provides unique information for reconstructing Southern Hemisphere paleoclimate. The Colonia Glacier is the largest outlet glacier draining the eastern NPI. Ages were determined using dendrochronology, lichenometry, radiocarbon, cosmogenic 10Be and optically stimulated luminescence. Dated moraines in the Colonia valley defined advances at 13.2 ± 0.95, 11.0 ± 0.47 and 4.96 ± 0.21 ka, with the last being the first constraint on the onset of Neoglaciation for the eastern NPI from a directly dated landform. Dating in the tributary Cachet valley, which contains an ice-dammed lake during periods of Colonia Glacier expansion, defined an advance at ca. 2.95 ± 0.21 ka, periods of advancement at 810 ± 49 cal a BP and 245 ± 13 cal a BP, and retreat during the intervening periods. Recent Colonia Glacier thinning, which began in the late 1800s, opened a lower-elevation outlet channel for Lago Cachet Dos in ca. 1960. Our data provide the most comprehensive set of Latest Pleistocene and Holocene ages for a single NPI outlet glacier and expand previously developed NPI glacial chronologies.

ICLEI submission for Rio+20. Contribution to the Zero Draft of the Rio+20 outcome document

Energy Technology Data Exchange (ETDEWEB)

NONE

2011-10-31

ICLEI is an association of over 1200 local government Members who are committed to sustainable development. This document is ICLEI's submission to the zero draft document being developed for RIO+20, the United Nations Conference on Sustainable Development, scheduled for June 2012 in Rio de Janeiro, Brazil. In the paper, ICLEI calls for a UN Decade of Sustainable Urbanization to raise awareness, create synergies and to share solutions and good practices.

Selected contributions from the 9th International Conference on Tidal Sedimentology, November 2015, Puerto Madryn, Patagonia, Argentina: an introduction

Science.gov (United States)

Scasso, Roberto A.; Cuitiño, José I.

2017-08-01

This special issue of Geo-Marine Letters presents selected contributions from the 9th International Conference on Tidal Sedimentology held on 17-19 November 2015 in Puerto Madryn, Chubut Province, Patagonia, Argentina. The guest editors are the conference organizers Roberto A. Scasso and José I. Cuitiño. Gerardo M. Perillo was the head of the Scientific Committee. The conferences on tidal sedimentology have been traditionally held every 4 years. However, only 3 years separated the last conference held in Caen (France, 2012) from this conference. Increasing numbers of contributions and the growing interest in tidal sedimentation have been the reasons for shortening the inter-conference period. The 2015 conference served as a discussion forum focusing on advances in modern and ancient tidal sedimentation at different locations worldwide. The papers presented in this Special Issue provide a selective view of the latest research results, the main topics dealing with tidal hydrodynamics and sediment transport, tidal coastal morphodynamics, modern and ancient tidal sedimentation, geotechnical processes in tidal environments, and tidal basins, facies and reservoirs.

Germanidade e banhos medicinais nos primórdios dos balneários no Rio Grande do Sul Germanism and medicinal bathing in the early days of health resorts in Rio Grande do Sul

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Sílvio Marcus de Souza Correa

2010-03-01

Full Text Available Nos primórdios dos balneários no Rio Grande do Sul, encontravam-se alguns imigrantes alemães, não apenas entre os banhistas, mas também entre os empresários do incipiente ramo do curismo-turismo. Era um grupo pequeno de imigrantes de origem urbana que, em geral, já conhecia as vantagens curativas ou revigorantes dos banhos em balneários europeus. Entre eles destacavam-se os médicos, importantes emissores de um discurso científico em prol dos balneários. As práticas terapêuticas de banhos de mar chegaram ao Brasil meridional pela imigração européia da segunda metade do século XIX, embora sua difusão só tenha ocorrido na primeira metade do século seguinte, quando se desenvolveram as primeiras praias balneárias no Rio Grande do Sul.In the early days of bathing resorts some German immigrants were found not only among the bathers, but also among the entrepreneurs of the incipient branch of 'curism-tourism'. It was a small group of immigrants of urban origin who, in general, already knew the curative or reinvigorating advantages of the baths in European bathing resorts. Among them, doctors were prominent, important emissaries of a scientific discourse in favor of bathing resorts. The therapeutic practices of bathing in the sea arrived to meridional Brazil with the European immigration of the second half of the nineteenth century, although its diffusion only took place in the first half of the following century, when the first bathing beaches in Rio Grande do Sul were developed.

Imaginary Documentary: reflecting upon contemporary documental photography Documentário Imaginário: reflexões sobre a fotografia documental contemporânea

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Kátia Hallak Lombardi

2008-01-01

Full Text Available This article pursues the idea of an Imaginary Documentary – a possible new inflexion on the practices of contemporary documental photography. The text establishes its theoretical foundations through a forthcoming approach of the discussions about documental photography to the concept of imaginary, by Gilbert Durand, and the notion of Imaginary Museum, by André Malraux. Photographers that are part of documental photography history are the elected objects in which we shall confront the potentialities of the Imaginary Documentary. Este artigo tem como propósito buscar a estruturação da idéia de Documentário Imaginário – uma possível inflexão na prática da fotografia documental contemporânea. O texto assenta suas bases teóricas por meio da aproximação de reflexões sobre a fotografia documental ao conceito de imaginário em Gilbert Durand e à noção de Museu Imaginário de André Malraux. Fotógrafos que fazem parte da história da fotografia documental são os objetos eleitos para aferir as potencialidades do Documentário Imaginário.

Micetomas actinomicóticos no Rio Grande do Sul: relato de quatro casos Actinomycotic mycetomas in Rio Grande do Sul: report of 4 cases

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Alberto T. Londero

1986-03-01

Full Text Available São relatados quatro casos de micetoma causados por Nocardia brasiliensis, ocorridos no Rio Grande do Sul. É revista a literatura rio-grandense-do-sul.Four cases of mycetoma caused by N. brasiliensis, occurring in Rio Grande do Sul (Brazil, are reported.

Materialidade e memória do Rio de Janeiro nas fotografias de Augusto Malta e do projeto Rio 365

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Débora Gauziski

2013-12-01

Full Text Available Neste artigo investigamos a relação da fotografia com a produção e difusão de imagens da cidade do Rio de Janeiro em dois momentos distintos: durante a modernização de Pereira Passos (início do século XX e no Rio dos megaeventos (século XXI. Em ambos os períodos históricos, a cidade sofreu profundas transformações urbanísticas e a fotografia atua como importante agente nesse processo. Para analisar o papel que a fotografia tem nesse contexto, trabalhamos com as imagens clicadas pelo fotógrafo Augusto Malta e com aquelas produzidas por usuários do Instagram no contexto do projeto Rio 365. Ao longo do artigo, nossa base teórica concentra-se em autores que trabalham ou tangenciam as questões da memória e da materialidade.

A violência do Rio às portas da emergência Violence in Rio as seen from the emergency ward

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Paulo Pinheiro

1994-01-01

Full Text Available Este trabalho trata de revelar o aumento dos danos físicos e lesões corporais que chegam a um hospital de emergência da Rede Municipal de Saúde do Rio de Janeiro. Como Diretor deste serviço, ao mesmo tempo que constato a mudança progressiva no perfil de atendimento do hospital, comparo-o com o crescimento da onda de criminalidade que envolveu a vida social do Rio de Janeiro.This study is intended to demonstrate the increase in bodily injuries that are currently being observed in a public hospital in Rio de Janeiro. As director of an emergency ward, I have observed a steady change in the type of hospital care provided, a phenonmenon which I ascribe to the increase in criminality engulfing the community of Rio de Janeiro.

MAGISTÉRIO E CONSCIÊNCIA

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Bernard Sesboüé

2012-01-01

Full Text Available Este artigo propõe uma breve reflexão sobre a relação histórica e atual entre o exercício do magistério e o necessário respeito da consciência dos crentes. Uma primeira parte retoma a evolução da consciência a partir dos tempos modernos e de suas consequências : uma nova figura da fé e da vida no seio da comunidade cristã. Uma segunda parte recapitula as diferentes formas de exercício do magistério eclesial no curso da história e as dificuldades postas por seu encontro com a modernidade. O autor apresenta então um sonho, propondo uma nova maneira de proceder: não mais a simples vigilância, mas a animação de um grande debate planetário sobre todas as dificuldades postas ao ato de crer, a fim de revivificar o sensus fidei do povo cristão. A terceira parte retoma o problema da verdade na qual magistério e consciência moderna devem encontrar um consenso autêntico. ABSTRACT: This article proposes a brief reflection on the historical and current relationship between the exercise of the Magisterium and the need to respect the conscience of believers. A first part follows the evolution of conscience from modern times and its consequences: a new figure of faith and of life within the Christian community. A second part recapitulates the different forms of exercise of the ecclesial Magisterium in the course of history and the difficulties posed by its encounter with modernity. The author proposes a dream by proposing a new way to proceed: no longer simply surveillance, but the animation of a large planetary debate about all difficulties made the act of believing, in order to give new life to the sensus fidei of Christian people. The third part takes up the problem of truth in which teaching and modern conscience must find a genuine consensus.

2011 Biometrics Conference Held in Arlington, Virginia on February 23-24, 2011

Science.gov (United States)

2011-02-24

Welfare, Travel Cards • Commercial Services: Banking, Transportation, Micro Payments – India’s UID conceived as Domestic Platform for host of Commerce...Policía Federal Argentina Gendarmería Nacional Argentina Policía Neuquen Prefectura Naval Argentina Servicio Penitenciario Federal Dirección Nacional de

As Câmaras Municipais no Império Português: o exemplo do Rio de Janeiro

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Maria Fernanda Bicalho

1998-01-01

Full Text Available O presente artigo visa analisar o papel representado pelas Câmaras Municipais Ultrama-rinas no interior do Império Colonial Português. Ele centra sua análise sobre a Câmara do Rio de Janeiro ao longo dos séculos XVII e XVIII, no sentido de ilustrar a composição das municipalidades, suas funções rotineiras, sua ação nos tempos de crise e de guerra, e o tipo de suas demandas dirigidas aos representantes da Coroa nos dois lados do Atlântico. Enquanto centro político-administrativo, de imposição de tributos, de comércio e defesa, o Rio de Janeiro se tornou locus privilegiado do exercício do domínio metropolitano sobre a vasta região do Atlântico-Sul. Este artigo pretende discutir as tensões, negociações e compro-missos entre a política metropo-litana e o papel de uma das mais importantes municipalidades no mundo luso-americano.The present article analises the role played by the overseas municipal councils in Portuguese Colonial Empire. It focus the Municipal Council of Rio de Janeiro during the seventeenth and eighteenth centuries, in order to illustrate the composition of the municipalities, their routine functions, their action in times of crisis and war, and the kind of it's demands to the Crown representatives on both sides of the Atlantic. As the center of political administration, tax collection, commerce, and defense, Rio de Janeiro was the privileged stage for the exercise of metropolian dominance over the vast South-Atlantic world. This article intends to discuss the tensions, negociations, and compromises between metropolitan politics and the role of one of the most important luso-american municipalities.

Laboratório químico-prático do Rio de Janeiro: primeira tentativa de difusão da Química no Brasil (1812- 1819) "Laboratório químico-prático do Rio de Janeiro": the first attempt at establishing the science of Chemistry in Brazil (1812- 1819)

OpenAIRE

Nadja Paraense dos Santos

2004-01-01

Until the present date, historians of science have described inaccurately the first laboratory created in Brazil for establishing and divulging Chemistry, namely the "Laboratório Químico-Prático do Rio de Janeiro". During recent research carried out in the Arquivo do Museu Imperial (Petrópolis, RJ), I localized a document entitled "Ensaio histórico analítico das operações do Laboratório Químico-Prático do Rio de Janeiro", which allowed me to gain the relevant information to correct some of th...

A search for Potential Impact Sites in Southern Argentina

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Rocca, M. C. L.

The Southern part of Argentina is composed of five Provinces; Tierra del Fuego, Santa Cruz, Chubut, Rio Negro and Neuquen. A search for potential impact sites was performed by the author through the examination of 76 color LANDSAT satellite images ( 1:250,000 - resolution = 250 meters ) at the Instituto Geografico Militar ( IGM ) of Buenos Aires city. When a potential candidate was found a more detailed study of the site was done. If available the radar X-SAR satellite images of the Deutsche Forschungsanstalt fur Luft-und Raumfahrt, (DLR), Berlin, Germany , were also examined. The final step was to perform a review of the available published geologic information of each site at the Servicio Geologico y Minero Argentino ( SEGEMAR ), ( =Geological Survey of Argentina ), in Buenos Aires. The resulting catalogue contains information about sites where possible simple crater or complex impact structures could be present. Each case demands future detailed and `in situ' research by an impact cratering specialist. --Tierra del Fuego: TF1 ) Ushuaia 5569-II, No 218. Cerro Taarsh, Estancia San Justo. Possible complex structure. Semi-circular area of concentric low ridges. Estimated diameter : 12 km. Probably very eroded. --Santa Cruz: SC1 ) Gobernador Gregores 4969-I, No 127. Estancia La Aragonesa Possible eroded complex structure. Circular area of low ridges, estimated diameter: 10 km.. Bull's eye like morphology. SC2 ) Gobernador Gregores 4969-I, No 127. Gran Altiplanicie Central. Possible simple crater in basalts. Diameter: 1 km.. SC3 ) Tres Lagos 4972-IV, No 106. Meseta del Bagual Chico. Possible perfectly circular simple crater in basalts. Diameter: 1.0 km.. SC4 )Paso Rio Bote 5172-II, No 20. Rio Pelque, Ruta Provincial No 5. A circular bowl-shaped structure is present on fluvial deposits of pleistocenic age. Diameter: 3.5 km.. SC5 ) Caleta Olivia 4769-II, No 28. North of Cerro Doce Grande. Possible complex structure of concentric circular rings of ridges. SC6 ) Caleta

Pensar una Patagonia con dos océanos: el proyecto de desarrollo de Ezequiel Ramos Mexía

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Susana Bandieri

2009-01-01

Full Text Available Las posibilidades productivas de la región, con escasas condi - ciones para las prácticas agrícolas pero adecuadas para la ganadería extensiva, predominantemente lanar, hicieron finalmente que la inser - ción patagónica se pensara dentro del mismo modelo de crecimiento “hacia afuera” delineado para el conjunto nacional sobre fines del siglo XIX y comienzos de XX. El único intento superador producido en ese período, aunque frustrado, lo constituyó el proyecto de desarro - llo patagónico elaborado por el Ministro de Obras Públicas del presi - dente Figueroa Alcorta, Ezequiel Ramos Mexía, concretado en la “Ley de Fomento de los Territorios Nacionales” nº 5.559 del año 1908. El ministro, hijo y nieto de estancieros bonaerenses, tenía una concep - ción amplia en materia de desarrollo económico y, en ese sentido, la Patagonia aparecía como el territorio adecuado para generar algunos cambios en un país que por entonces sólo se pensaba en términos agrícolas y pastoriles.

EXPERIENCIA OBRERA, CONSTRUCCIONES SINDICALES Y OR-GANIZACIONES POLÍTICAS DE LA CLASE OBRERA: LOS TRABA-JADORES DE LA PATAGONIA ARGENTINA DURANTE LA DÉCA-DA DEL ‘80

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Gonzalo Pérez Álvarez

2015-09-01

Full Text Available Exploramos la relación entre experiencia obrera y organización partidaria de los trabajadores, a partir del estudio de la experiencia que desarrolla un conjunto de trabajadores afincados en la Patagonia argentina durante el auge del proyecto de promoción industrial para la región. Para ello describiremos algunas experiencias de organización partidaria de grupos obreros, intentando problematizar la búsqueda que realizan estos trabajadores de construir programas políticos propios, los límites y potencialidades que se expresan y el intento de desarrollar propuestas alternativas a las conducciones sindicales tradicionales. Señalamos los momentos de quiebre de esta experiencia, y la relación que guardan con la transformación en la estructura económica de la región. La consolidación hegemónica del neoliberalismo necesitaba la destrucción de las construcciones que pudiesen plantear proyectos alternativos al del capital financiero.Palabras clave: Experiencia, sindicatos, partidos políticos, clase obrera._________________________We explore the relationship between working experience and party organization of workers, from the study of the experience that develops a set of workers settled in Patagonia Argentina during the rise of industrial promotion project for the region. This will describe some experiences of party organization groups of workers, trying to problematize the search performed by these workers to build own political agendas, the limits and potentialities that are expressed and the attempt to develop al-ternative approaches to traditional union lines. Note the break in time of this experience, and how they relate to the transformation in the economic structure of the region. The hegemonic consolidation of neoliberalism needed destruction of buildings that may pose alternative to finance capital projects.Keywords: Experience, trade unions, political parties, working class.

Especies de Ulva del Golfo San Jorge, Patagonia Argentina: variaciones bioquímicas estacionales - espaciales y su relación con la producción de metabolitos bioactivos

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Analía Verónica Uhrich

Full Text Available Objetivos: Investigar especies de Ulva del Golfo San Jorge, Patagonia Argentina, integrando aspectos bioquímicos, actividad biológica y variaciones estacionales/habitacionales que permitan determinar su potencial aplicación en Salud. Métodos: Las algas se colectaron estacionalmente en playas con y sin contaminación antrópica; se secaron, molieron y extrajeron con etanol. Los extractos se fraccionaron mediante solventes de distinta polaridad. Cada fracción fue caracterizada mediante reacciones químicas cualitativas y cromatografía. Las fracciones ricas en flavonoides se analizaron por HPLC-DAD y los lípidos, por TLC. La actividad biológica se ensayó mediante el test de citotoxicidad de Artemia salina, inhibición de la elongación radicular, inhibición de la xantino oxidasa, actividad antioxidante y antibacteriana. Resultados: Se identificaron Ulva rigida y Ulva lactuca. Ambas evidenciaron flavonoides, taninos, quinonas, lípidos, carbohidratos, esteroides. Los flavonoides resultaron mayoritarios en U. rigida (otoño e invierno y en U. lactuca (primavera e invierno, destacándose kayaflavona. Se detectaron alcaloides en Ulva rigida (verano. Los lípidos fueron mayoritarios en verano; U. lactuca en invierno mostró monogalactosildiacilglicérido y en otoño, digalactosilacilglicérido y fosfatidilcolina. La actividad inhibitoria de la elongación radicular, que presume actividad antitumoral, fue importante y dosis dependiente, destacándose U. rigida de otoño y primavera (DE50= 480 y 520 µg/ml, respectivamente. Las demás bioactividades resultaron escasas o negativas. Conclusiones: Las variaciones metabólicas observadas muestran la importancia de considerar las condiciones espacio - temporales al planificar una colecta de ejemplares para su estudio y/o aplicación. Este primer análisis integral de especies de Ulva de la Patagonia Argentina, evidencia su potencialidad como antitumoral.

Archaeozoology of marine mollusks from Sambaqui da Tarioba, Rio das Ostras, Rio de Janeiro, Brazil

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Rosa C. C. L. de Souza

2010-06-01

Full Text Available A reference inventory of prehistoric marine mollusks from the Rio das Ostras region was created based on an excavation carried out at the Sambaqui da Tarioba shellmound. Patterns of richness and biogeography were studied, and the representativeness of bivalve and gastropod diversities found at this archaeological site were inferred. A total of 47 taxa belonging to 28 families, most of which from unconsolidated substrates, was identified. The shellmound species composition does not differ from the present-day composition. All recorded species are characteristic of a wide transition zone between the south of the states of Espírito Santo (21°S and Rio Grande do Sul (32°S. Thus, the data show little evidence of evolution in the composition, richness,and biodiversity distribution patterns of mollusks in the Rio das Ostras region. Likewise, a reconstitution of the paleoenvironment from the functional characteristics of the shellmound species indicates that the locality's geomorphology and climate remained largely unchanged in the last 4,000 years BP.

Thermoluminescence dating of Rio Claro and Piracununga formations

International Nuclear Information System (INIS)

Ferreira, Sandra Regina; Chang, Maria Rita Caetano

2008-01-01

The Rio Claro and Piracununga formations cover extensive areas of the Paulista Peripheral Depression, dominantly in the region of Rio Claro and Piracununga cities. These units lie over the Corumbatai and Piramboia formations, exhibiting discordant contacts. The Rio Claro and Piracununga formations are composed of fine to medium sand facies, showing local cross-stratifications and parallel beddings with thin interbeddings of mud and gravel. These sands were dated by the Thermoluminescence Method, which indicated they were from the Pleistocene age. The oldest age (745,000 years BP) was found in deposits of the Rio Claro Formation; the other ages varied from 400,000 years BP to 145,000 years BP, for both formations. The youngest age (15,000 years BP - close to Pleistocene/ Holocene limit) was found in colluvial deposits, which rest on the Piracununga Formation. (author)

Desgaste ondulatório em caminhos de ferro

OpenAIRE

Martins, Paulo Manuel Caldeira

2010-01-01

Trata-se de uma análise técnica completa a um desgaste específico que aparece frequentemente nos sistemas ferroviários, sejam eles comboios (passageiros, carga e alta velocidade), Metropolitanos (ligeiros e pesados) ou mesmo sistemas de carros eléctricos. Anualmente são gastos pelos sistemas ferroviários, consideráveis somas na correcção dos defeitos provocados pelo aparecimento do desgaste ondulatório nos carris de rolamento. Ainda hoje a relativa pouca troca de conhecimentos entre os ...

Peat decomposition records in three pristine ombrotrophic bogs in southern Patagonia

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T. Broder

2012-04-01

Full Text Available Ombrotrophic bogs in southern Patagonia have been examined with regard to paleoclimatic and geochemical research questions but knowledge about organic matter decomposition in these bogs is limited. Therefore, we examined peat humification with depth by Fourier Transformed Infrared (FTIR measurements of solid peat, C/N ratio, and δ¹³C and δ¹⁵N isotope measurements in three bog sites. Peat decomposition generally increased with depth but distinct small scale variation occurred, reflecting fluctuations in factors controlling decomposition. C/N ratios varied mostly between 40 and 120 and were significantly correlated (R² > 0.55, p < 0.01 with FTIR-derived humification indices. The degree of decomposition was lowest at a site presently dominated by Sphagnum mosses. The peat was most strongly decomposed at the driest site, where currently peat-forming vegetation produced less refractory organic material, possibly due to fertilizing effects of high sea spray deposition. Decomposition of peat was also advanced near ash layers, suggesting a stimulation of decomposition by ash deposition. Values of δ¹³C were 26.5 ± 2‰ in the peat and partly related to decomposition indices, while δ¹⁵N in the peat varied around zero and did not consistently relate to any decomposition index. Concentrations of DOM partly related to C/N ratios, partly to FTIR derived indices. They were not conclusively linked to the decomposition degree of the peat. DOM was enriched in ¹³C and in ¹⁵N relative to the solid phase probably due to multiple microbial modifications and recycling of N in these N-poor environments. In summary, the depth profiles of C/N ratios, δ¹³C values, and FTIR spectra seemed to reflect changes in environmental conditions affecting decomposition, such as bog wetness, but were dominated by site specific factors, and are further influenced by ash

High abundance and diversity of consumers associated with eutrophic areas in a semi-desert macrotidal coastal ecosystem in Patagonia, Argentina

Science.gov (United States)

Martinetto, Paulina; Daleo, Pedro; Escapa, Mauricio; Alberti, Juan; Isacch, Juan Pablo; Fanjul, Eugenia; Botto, Florencia; Piriz, Maria Luz; Ponce, Gabriela; Casas, Graciela; Iribarne, Oscar

2010-07-01

Here we evaluated the response to eutrophication in terms of abundance and diversity of flora and fauna in a semi-desert macrotidal coastal system (San Antonio bay, Patagonia, Argentina, 40° 48' S) where signs of eutrophication (high nutrient concentration, seaweed blooms, high growth rate of macroalgae) have been reported. We compared abundances and species composition of macroalgae, small infaunal and epifaunal invertebrates, and birds associated with tidal channels of the San Antonio Bay subject to contrasting anthropogenic influence. Macroalgae were more abundant and diverse in the channel closer to human activity where nutrient concentrations were also higher. In contrast to what others have observed in eutrophic sites, small invertebrates and birds were also more abundant and diverse in the channel with macroalgal blooms and high nutrient concentration. The large water flushing during the tidal cycle could prevent anoxic or hypoxic events, making the environment suitable for consumers. Thus, this could be a case in which eutrophication supports high densities of consumers by increasing food availability, rather than negatively affecting the survival of organisms.

Fluid typing and tortuosity analysis with NMR-DE techniques in volcaniclastic reservoirs, Patagonia/Argentina

Energy Technology Data Exchange (ETDEWEB)

Bustos, Ulises Daniel [Schlumberger Argentina S.A., Buenos Aires (Argentina); Breda, Eduardo Walter [Repsol YPF Comodoro Rivadavia, Chubut (Argentina)

2004-07-01

Alternative hydrocarbon-detection techniques are used to differentiate water from hydrocarbon where resistivity-based methods are difficult to apply, such as freshwater reservoirs and complex lithologies. One of these areas is represented by the complex volcaniclastic freshwater reservoirs in the Golfo San Jorge basin, Patagonia Argentina, where water and oil have often identical response on conventional logs. Some advances in hydrocarbon identification based on nuclear magnetic resonance (NMR) techniques were achieved in long T1 environments (very light oils, gas) in the Golfo San Jorge basin by previous NMR fluid typing methods. However, since medium to heavy oils are commonly present in these intervals, hydrocarbon detection by such techniques cannot be properly achieved. In addition, restricted diffusion phenomena recognized in these intervals, constitute further complications in fluid typing since its presence have similar response than native oil. To address this problem, a fluid characterization method using NMR Diffusion-Editing techniques and processing/interpretation with D-T2 maps in a suite of NMR measurements was applied. The technique allowed the detection and evaluation of restricted diffusion in these reservoirs, enabling better hydrocarbon characterization in a broad viscosity range (from light to heavy). The method also improved the petrophysical evaluation because restricted diffusion is related to tortuosity in the reservoir. Since the application of this innovative reservoir evaluation method, fluid prognosis vs well completion results was increased from around 68% to around 88% in Golfo San Jorge basin. Moreover, in some of these areas rates above 95% were recently achieved in 2004. (author)

Salud y enfermedad en Patagonia Austral, líneas de análisis, problemas y perspectivas

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Guichón, Ricardo Aníbal

2005-01-01

Full Text Available La dispersión de enfermedades durante el proceso de contacto europeo aborigen en Patagonia Austral es un tema complejo en el cual estamos comenzando a trabajar. Partiendo de algunas consideraciones generales sobre el proceso de ocupación humana en la región se analiza la información sobre: ¿Qué tipos de enfermedades actuaron en momentos pre y post contacto europeo aborigen? ¿Cuál es la muestra osteológica humana disponible y que información tiene asociada? ¿Dónde y cómo aparece el registro biológico humano? Asimismo se hace referencia a algunos avances en dos líneas de trabajo: tafonomía de restos humanos a partir del análisis de propiedades óseas intrínsecas y otra sobre Paleoparasitología. En el marco de proyectos de colaboración con arqueólogos, se señalan los trabajos iniciados en dos sitios: el primer asentamiento español en el estrecho de Magallanes (1584 y La Misión Salesiana "La Candelaria" de Río Grande, Tierra del Fuego. El desafió es coordinar esfuerzos entre bioantropólogos, biólogos, paleopatólogos, paleoparasitólogos, médicos, arqueólogos e historiadores.

Analysis of admixture and genetic structure of two Native American groups of Southern Argentinean Patagonia.

Science.gov (United States)

Sala, Andrea; Corach, Daniel

2014-03-01

Argentinean Patagonia is inhabited by people that live principally in urban areas and by small isolated groups of individuals that belong to indigenous aboriginal groups; this territory exhibits the lowest population density of the country. Mapuche and Tehuelche (Mapudungun linguistic branch), are the only extant Native American groups that inhabit the Argentinean Patagonian provinces of Río Negro and Chubut. Fifteen autosomal STRs, 17 Y-STRs, mtDNA full length control region sequence and two sets of Y and mtDNA-coding region SNPs were analyzed in a set of 434 unrelated individuals. The sample set included two aboriginal groups, a group of individuals whose family name included Native American linguistic root and urban samples from Chubut, Río Negro and Buenos Aires provinces of Argentina. Specific Y Amerindian haplogroup Q1 was found in 87.5% in Mapuche and 58.82% in Tehuelche, while the Amerindian mtDNA haplogroups were present in all the aboriginal sample contributors investigated. Admixture analysis performed by means of autosomal and Y-STRs showed the highest degree of admixture in individuals carrying Mapuche surnames, followed by urban populations, and finally by isolated Native American populations as less degree of admixture. The study provided novel genetic information about the Mapuche and Tehuelche people and allowed us to establish a genetic correlation among individuals with Mapudungun surnames that demonstrates not only a linguistic but also a genetic relationship to the isolated aboriginal communities, representing a suitable proxy indicator for assessing genealogical background.

Large wood budget assessment along a gravel bed river affected by volcanic eruption: the Rio Blanco study case (Chile).

Science.gov (United States)

Oss-Cazzador, Daniele; Iroume, Andres; Lenzi, Mario; Picco, Lorenzo

2016-04-01

Wood in riverine environments exerts different functions on ecological and geomorphic settings, influencing morphological processes, and increasing risks for sensitive structures. Large wood (LW) is defined as wood material, dead or alive, larger than 10 cm in diameter and 1 m in length. Natural hazards can strongly increase the presence of LW in waterways and flood events can transport it affecting the ecosystem and landscape. This study aims to increase the knowledge of wood budget, considering the effects of two subsequent slight flood events along a sub-reach of the Rio Blanco gravel bed river , in Chilean Patagonia, strongly affected by the eruption of Chaiten volcano in 2008. The volcanic eruption affected almost 3,5 km 2 of evergreen forest on the southern (left) bank, because of primary direct effects from pyroclastic density currents and lahar-floods that caused deposition up to 8 m of reworked tephra, alluvium, and wood on floodplains and terrace along the Rio Blanco. After the eruption, there was a considerable increase of LW into the main channel: into the bankfull channel, volume exceeds 100 m 3 /ha. Field surveys were carried out in January and March 2015, before and after two slight flood events (Recurrence Intervals lower than 1 year). The pre-event phase permitted to detect and analyze the presence of LW into the study area, along a 80 m-long reach of Rio Blanco (7500 m 2 . Every LW element was manually measured and described, a numbered metal tag was installed, and the position was recorded by GPS device. In January, there was a total amount of 113 m 3 /ha, 90% accumulated in LW jams (WJ) and 10% as single logs. The LW was characterized by mean dimensions of 3,36 m height, 0,25 m diameter and 0,26 m 3 volume, respectively. The WJ are characterized by wide range of dimension: volume varies from 0,28 m 3 to 672 m 3 , length from 1,20 m to 56 m, width from 0,40 m to 8,70 m and height from 0,20 m to 3 m, respectively. After the flood events, field

A paisagem de rios urbanos

OpenAIRE

Porath, Soraia Loechelt

2004-01-01

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Arquitetura e Urbanismo Os rios têm sido uma presença constante na formação e crescimento das cidades. Desde os primórdios das civilizações, por uma questão de sobrevivência e utilidade, servem como fonte de recursos e meio de circulação. Porém, os rios urbanos são mal compreendidos. São entendidos como um limite ao crescimento das cidades, um obstáculo a ser transposto, e dest...

Evaluación de la técnica de MSP-PCR para la caracterización molecular de aislamientos de Rhodotorula mucilaginosa provenientes de la Patagonia noroccidental Assessment of the MSP-PCR technique for the molecular characterization of Rhodotorula mucilaginosa isolates from northwestern Patagonia

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D. Libkind

2007-09-01

Full Text Available La identificación rápida de levaduras de origen ambiental o clínico es de importancia para el estudio de la biodiversidad de estos microorganismos y para la detección de posibles patógenos. Rhodotorula mucilaginosa es una levadura ubicua y pigmentada, capaz de producir infecciones en pacientes inmunocomprometidos. En este trabajo se evaluó la utilidad de la técnica de fingerprinting conocida como MSP-PCR (Micro/Minisatellite-Primed PCR en la caracterización e identificación de aislamientos ambientales de R. mucilaginosa provenientes de la Patagonia noroccidental. Sobre la base de sus caracteres fenotípicos, de un total de 200 levaduras pigmentadas se seleccionaron 110 aislamientos que presuntamente corresponderían a la especie R. mucilaginosa. Se evaluaron los iniciadores (GTG5, (GAC5 y M13 en aislamientos representativos, y se seleccionó el iniciador (GTG5 por ser el que permitió una mejor agrupación de los aislamientos pertenecientes a R. mucilaginosa y una mejor diferenciación de éstos con los de especies filogenéticamente próximas. Utilizando dicho iniciador, el 87% de los aislamientos de R. mucilaginosa presentó un perfil de MSP-PCR similar (> 60% al de la cepa de referencia CBS 316T de R. mucilaginosa. La técnica de MSP-PCR resultó efectiva, tanto para caracterizar e identificar un número elevado de aislamientos ambientales de R. mucilaginosa como para detectar polimorfismos en la especie.The rapid identification of environmental or clinical yeast isolates is important for biodiversity studies and the detection of probable pathogens. Rhodotorula mucilaginosa is a ubiquitous and pigmented yeast capable of infecting immunocompromised patients. In this study, we evaluated the Micro/mini satellite-primed PCR (MSP-PCR fingerprinting method for the characterization and identification of R. mucilaginosa isolates from natural environments in northwestern Patagonia. There were selected 110 putative R. mucilaginosa isolates

Primer registro de Naupactus ruizi (Coleoptera: Curculionoidea asociado con Pinus ponderosa (Gymnospermae: Pinaceae en Patagonia First record of Naupactus ruizi (Coleoptera: Curculionoidea associated to Pinus ponderosa (Gymnospermae: Pinaceae in Patagonia

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Cecilia A. Gómez

2006-07-01

Full Text Available Naupactus ruizi (Brèthes es un gorgojo de rostro corto, distribuido en la Argentina y Chile, que habita en ambientes áridos asociado con vegetación xerofítica y alcanza el rango más austral entre los miembros de la tribu Naupactini. Un relevamiento de insectos y de patógenos como plagas potenciales, realizado durante el 2005 en plantaciones de Pinus spp. en la Patagonia andina argentina, resultó en el hallazgo de adultos de N. ruizi que se alimentaban de acículas de Pinus ponderosa Dougl. ex Laws. Este hallazgo es sorprendente dado que las especies de Naupactini, consumen casi exclusivamente angiospermas. Interpretamos que el cambio de huésped, habría ocurrido como consecuencia de una colonización reciente favorecida por la amplia distribución geográfica del gorgojo y su capacidad para sobrevivir en hábitats marginales, donde probablemente las plantas nativas son escasas y el nuevo huésped presenta una gran abundancia local.Naupactus ruizi (Brèthes is a broad-nosed weevil recorded from Argentina and Chile , that inhabits arid environments with xerophitic vegetation and reaches the southern most distribution of the tribe Naupactini. A survey of potential insect pests and pathogens of plantations of Pinus spp. and other forest species, conducted during 2005 in Argentinean Patagonian Andean forestations, allowed to find N. ruizi feeding on pine needles of Pinus ponderosa Dougl. ex Laws. This finding was unexpected, since species of Naupactini consume almost exclusively angiosperms. We interpret that the new host association may represent a recent host shift, probably facilitated by the broad range of the weevil, its capacity to survive in marginal habitats where natural hosts are scarce, and the local abundance of the new host.

Solapamiento trófico entre el lobo marino de un pelo Otaria flavescens y la pesquería de arrastre demersal del golfo San Matías, Patagonia, Argentina Trophic overlap between the South American sea lion Otaria flavescens and the demersal trawl fishery in San Matías Gulf, Patagonia, Argentina

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María Alejandra Romero

2011-07-01

Full Text Available A nivel internacional, paralelo a la declinación y al colapso de pesquerías de gran escala, surgió un interés creciente por el estudio de las interacciones entre mamíferos marinos y pesquerías. El golfo San Matías (Patagonia, Argentina es considerado un ecosistema pesquero independiente de las aguas de la Plataforma Continental Argentina, con condiciones oceanográficas y biológicas particulares. La condición de sistema semi-cerrado podría generar escenarios particulares para la interacción entre la flota pesquera de arrastre de fondo y la población de lobos marinos de un pelo Otaria flavescens. En el presente trabajo se caracterizó la dieta del predador y la composición de las capturas pesqueras a fin de evaluar el solapamiento trófico entre ambos componentes. A partir de este análisis y la comparación de las tallas de las presas consumidas, se encontró que la posibilidad de una interacción competitiva entre la flota pesquera y los lobos marinos, a partir de la utilización de recursos similares, sería baja en el ecosistema del golfo San Matías.As world fisheries began to decline and massive collapses were observed, the competition between marine mammals and fisheries became an issue of growing concern. San Matías Gulf (Patagonia, Argentina is considered to be a fishery ecosystem independent of the Argentine Continental Shelf waters, with particular oceanographic and biological properties. As a semi-enclosed ecosystem, this gulf may generate particular scenarios for interactions between the demersal trawl fishery fleet and the population of South American sea lions Otaria flavescens. In this paper, the diet of the top predator and the composition of fishery catches were characterized in order to assess the trophic overlap between these two components. This analysis and a comparison of the sizes of prey consumed revealed a low probability of competition for similar resources between the fishing fleet and the marine mammals

El origen y evolución temprana de las serpientes : Análisis anatómico y filogenético de los ofidios cretácicos y paleógenos de la Patagonia y Bolivia

OpenAIRE

Scanferla, Carlos Agustín

2010-01-01

Este trabajo de tesis doctoral tiene como objetivo principal el análisis de dos relevantes escamados procedentes del Cretácico Superior de la Patagonia Argentina, Najash rionegrina y Dinilysia patagonica, como así también dos nuevas serpientes avanzadas del grupo de los Macrostomata, (denominados Taxón A y B) procedentes de la localidad del Terciario Inferior (Paleoceno) de Tiupampa, Bolivia. Se realizó un análisis anatómico detallado de estos taxones fósiles en conjunto con un gran número de...

Day and night feeding habitat of Red Knots in Patagonia : Profitability versus safety?

NARCIS (Netherlands)

Sitters, HP; Gonzalez, PM; Piersma, T; Baker, AJ; Price, DJ; Sitters, Humphrey P.; González, Patricia M.; Baker, Allan J.; Price, David J.

2001-01-01

By radio-tracking and recording the movements of flocks. the distribution of feeding Red Knots (Calidris canutus rufa) was studied day and night at a migration stopover site near San Antonio Oeste, Rio Negro, Argentina in March and April 1998. By day, the birds fed in dense flocks of 500-4000 on an

Pyxiloricaria menezesi, a new genus and species of mailed catfish from Rio Miranda and Rio Cuiabá, Brazil (Pisces, Siluriformes, Loricariidae)

NARCIS (Netherlands)

Isbrücker, I.J.H.; Nijssen, H.

1984-01-01

Pyxiloricaria menezesi n. gen., n. sp., is described and illustrated from Rio Miranda (Est. Mato Grosso do Sul) and from Rio Cuiabá (Est. Mato Grosso), Brazil. It is assigned to the subtribe Planiloricariina of the tribe Loricariini, subfamily Loricariinae. A comparison is made with sympatric

Heavy metal and trace elements in riparian vegetation and macrophytes associated with lacustrine systems in Northern Patagonia Andean Range.

Science.gov (United States)

Juárez, Andrea; Arribére, María A; Arcagni, Marina; Williams, Natalia; Rizzo, Andrea; Ribeiro Guevara, Sergio

2016-09-01

Vegetation associated with lacustrine systems in Northern Patagonia was studied for heavy metal and trace element contents, regarding their elemental contribution to these aquatic ecosystems. The research focused on native species and exotic vascular plant Salix spp. potential for absorbing heavy metals and trace elements. The native species studied were riparian Amomyrtus luma, Austrocedrus chilensis, Chusquea culeou, Desfontainia fulgens, Escallonia rubra, Gaultheria mucronata, Lomatia hirsuta, Luma apiculata, Maytenus boaria, Myrceugenia exsucca, Nothofagus antarctica, Nothofagus dombeyi, Schinus patagonicus, and Weinmannia trichosperma, and macrophytes Hydrocotyle chamaemorus, Isöetes chubutiana, Galium sp., Myriophyllum quitense, Nitella sp. (algae), Potamogeton linguatus, Ranunculus sp., and Schoenoplectus californicus. Fresh leaves were analyzed as well as leaves decomposing within the aquatic bodies, collected from lakes Futalaufquen and Rivadavia (Los Alerces National Park), and lakes Moreno and Nahuel Huapi (Nahuel Huapi National Park). The elements studied were heavy metals Ag, As, Cd, Hg, and U, major elements Ca, K, and Fe, and trace elements Ba, Br, Co, Cr, Cs, Hf, Na, Rb, Se, Sr, and Zn. Geochemical tracers La and Sm were also determined to evaluate contamination of the biological tissues by geological particulate (sediment, soil, dust) and to implement concentration corrections.

Tratamento conjugado de lixiviado de aterro sanitário e esgoto sanitário em lagoas de estabilização rasas

OpenAIRE

Campos, Andrezza Raphaella Costa

2012-01-01

A busca para desenvolver alternativas viáveis e eficientes para o tratamento do lixiviado de aterro sanitário, fez com que surgisse a iniciativa de pesquisar sobre o tratamento conjugado entre lixiviado de aterro sanitário e esgoto sanitário, visando tratar o lixiviado diluindo este no esgoto, reduzindo as elevadas concentrações de matéria orgânica e nitrogênio amoniacal, deixando em proporções adequadas ao tratamento convencional. Neste estudo, foi analisada a eficiência do processo de trata...

Construção de uma escala de ansiedade para pacientes de ambulatório: um es tu do exploratório

OpenAIRE

Oliveira, José Carlos Silva; Sisto, Fermino Fernandes

2009-01-01

O presente trabalho teve como objetivo estudar a possibilidade de construção de uma escala para avaliar a ansiedade de pessoas em ambulatório. Participaram 636 pacientes, atendidos no ambulatório pelos serviços de saúde de um hospital universitário, nas áreas de Cardiologia, Clínica Médica, Dermatologia, Endocrinologia, Gastroenterologia, Ginecologia, Neurologia, Oftalmologia, Ortopedia e Urologia, com idades entre 25 e 50 anos. O instrumento foi composto por 57 frases e, em uma primeira anál...

Sistema internacional de hegemonia conservadora: o fracasso da Rio + 20 na governança dos limites planetários

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Eduardo Viola

2012-12-01

Full Text Available Em um artigo seminal, Rockström et al. (2009 inauguraram uma nova forma de abordar os problemas ambientais. A abordagem das fronteiras planetárias aparece como um instrumento analítico fundamental para avaliar a governança global do ambiente e, em um sentido mais profundo, para refletir sobre o rumo civilizatório da humanidade. O nosso objetivo nesse artigo, é fazer uma avaliação da Rio+20 utilizando como critério a governança global das fronteiras planetárias. No caminho, fazemos especial referência ao papel do Brasil na Cúpula. Nossa conclusão principal é que a Rio+20 foi um fracasso desde o ponto de vista da definição de um espaço de operação segura para a humanidade e que ele é expressão de um sistema internacional bloqueado e dominado por forças conservadoras. Nesse cenário, o Brasil aparece como uma potência ambiental subdesenvolvida (underachiever environmental power: a combinação de um enorme capital ambiental físico com um deficiente capital ambiental social.En un trabajo seminal, Rockström et al (2009 inauguraron una nueva forma de abordar la problemática ambiental, basada en la noción de fronteras planetarias. Esa perspectiva aparece como un instrumento analítico fundamental para evaluar la gobernanza del medio ambiente y en un sentido mas profundo, el propio rumbo de la civilización. El objetivo de este artículo es hacer un balance de la Rio+20 usando como criterio la gobernanza global de las fronteras planetarias, así como analizar el papel de Brasil en la Cumbre. La conclusión principal es que la Rio+20 fue un fracaso desde el punto de vista de la definición de un espacio de operación segura para la humanidad, fracaso que es expresión de un sistema internacional bloqueado y dominado por fuerzas conservadoras. En ese escenario, Brasil aparece como una potencia ambiental subdesarrollada (underachiever environmental power por combinar un vasto capital ambiental físico con un deficiente capital

Por uma memória do cinema documentário no Rio Grande do Sul: desafios para uma nova historiografia do cinema brasileiro

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Cássio dos Santos Tomaim

2010-12-01

Full Text Available A partir de pesquisa bibliográfica e consulta a catálogos e dicionários de filmes brasileiros, buscamos uma compreensão histórica da produção de documentários no Rio Grande do Sul, a fim de problematizar a memória deste cinema. Primeiro foi preciso existir o cinema de não-ficção no Estado, em especial o de curta-metragem, para somente mais tarde ser possível o longa-metragem de ficção gaúcho. Indicativo de que a história do cinema no Rio Grande do Sul não é uma coleção de episódios isolados, como nos fez acreditar a historiografia clássica do cinema brasileiro.

GO RIO: Achieving Universal Access to Mass Transit

Science.gov (United States)

Martinez, Ted, Jr.; Castaneda-Calleros, Russell

2009-01-01

GO RIO is a universal access, mass-transit program that has been offered to all students who are registered full-time at Rio Hondo College. Through an agreement with five local transit agencies, full-time students can obtain a pass that provides full access seven days a week throughout the entire semester.

Research of the Rio Grande Ecosystem Management Program

Science.gov (United States)

Deborah M. Finch

2000-01-01

This paper describes the mission, objectives, and preliminary results of the Middle Rio Grande Ecosystem Management Research Program managed at the Rocky Mountain Research Station's Albuquerque laboratory. This program was initiated in 1994 to address growing pressures to effectively manage the limited resources of the middle Rio Grande Basin. The program is...

Counternarcotic Efforts in the Southern Cone: Argentina

Science.gov (United States)

1990-06-15

Corrientes , and in this case* the source is Brazil. Some marijuana is smuggled from Chile through Mendoza and Neuquen provinces. The transportation method...34 3, States in the early 1960’s promoted as part of the Alliance for Progress program the "antifoco" theory which vms eagerly accepted and incorporated

Um Visitante do Rio de Janeiro Colonial

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Jean M. Carvalho França

1997-01-01

Full Text Available O texto que se segue é a tradução de um manuscrito francês, intitulado Relâche du Vaisseau L'Arc-en-ciel à Rio de Janeiro, 1748, que se encontra na Biblioteca da Ajuda, em Lisboa. Trata-se de um relato anônimo, que dá conta da passagem do navio francês L'Arc-en-ciel pelo porto carioca. Tal relato, um curioso documento para a história dos nossos costumes, contém uma descrição da baía da Guanabara e da cidade do Rio de Janeiro, uma pequena análise do caráter da gente portuguesa do Brasil, um perfil do Governador Dom Fernando Freire e algumas considerações gerais sobre a situação do porto local e sobre os víveres disponíveis na região.The following text is a translation of a French manuscript named Relachê du Vaisseau L'Arc-en-ciel à Rio de Janeiro, 1748, which is in Biblioteca da Ajuda (Ajuda Library in Lisbon. It is an anonymous report and relates the stay of the French ship L'Arc-en-ciel in Rio de Janeiro harbour. Such report, a curious document for the history of our customs, has a description of Guanabara bay and Rio de Janeiro city, a brief analysis of the character of the Portuguese people in Brazil, a prolife of Governor Dom Fernando Freire and some considerations of the situation of local harbour and on the provisions available in that region.

The cephalic lateral line system of temperate perches (Perciformes: Percichthyidae from Argentinean Patagonia

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Rocío M. Vega

Full Text Available ABSTRACT The species of Percichthys (Percichthyidae are endemic to southern South America. Some authors have pointed out that the genus includes four valid species, based on the morphology of the head, jaws, and fins. A phylogenetic analysis published by other authors suggests that three of them are morphotypes belonging to the same species, Percichthys trucha (Valenciennes, 1833. The aim of this study is to describe for the first time the morphology of the cephalic seismosensory system of Patagonian perches, and how these characters vary in the three morphotypes, in order to provide morphological elements to analyze the taxonomy of these fish species. Comparisons of the cephalic seismosensory system between juveniles and adults were also conducted. Juvenile and adult specimens were collected in the northwestern Argentinean Patagonia. Specimens were bleached in 5% H2O2 and the canal systems of their cephalic lateral line were filled with hematoxylin. Specimens were deposited in the Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Argentina. The cephalic lateral line of the studied specimens is a widened type of canal systems, is not connected to the trunk lateral line, and consists of preopercular-mandibular canal, infraorbital canal, supraorbital canal, temporal canal, supratemporal canal, and a supraorbital commisure. The number of pores increases during the ontogeny, while their diameters decrease. The number, position and size of infraorbital canal pores showed significant differences among morphotypes and juveniles. The interpopulation variation regarding the number, position, and size of pores seems to signal an ongoing process of speciation, which is the result adaptations to different environmental conditions. Our study contributes to the knowledge of the morphology of percichthids and describes for the first time the seismosensory system of temperate perches.

LA PATAGONIA COMO TERRITORIO EN DISPUTA: TENSIONES ENTRE EL ESTADO, LA IGLESIA Y LA CONGREGACIÓN SALESIANA POR EL ESPACIO MISIONERO

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María Nicoletti

2012-06-01

Full Text Available La Patagonia fue el primer territorio salesiano “ad gentes”. La creación de su administración bajo la figura de un Vicariato y Prefectura apostólica de parte de la Congregación Salesiana y el Colegio de Propaganda Fide, trajo aparejados numerosos conflictos con las Iglesias Argentina y Chilena y con ambos Estados nacionales. Estos conflictos, en el marco histórico de la construcción de las naciones del siglo XIX y principios del siglo XX, fueron acompañados por los planes de evangelización que la Congregación salesiana había formulado para los pueblos originarios. Bajo la gestión y dirección de los dos primeros rectores mayores de la Congregación, Don Bosco y Don Rua, se resolvieron los problemas con las Iglesias y Estados de ambas naciones, cargados de tensiones en la construcción del territorio de evangelización considerado según cada institución como “terra nullius”, “territorio salesiano” o “territorio nacional y diocesano”.

Territorio y ganadería en la Patagonia Argentina: desertificación y rentabilidad en la Meseta Central de Santa Cruz

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Larry Andrade

2002-01-01

Full Text Available El artículo revisa brevemente las características que asume el proceso de desertificación en la Patagonia Austral, con énfasis en la provincia de Santa Cruz, Argentina. Se hacen referencias a la ocupación del territorio santacruceño por el ganado ovino, a fines del siglo XIX y con más intensidad a principios del siglo XX, y el impacto que ello conllevó, especialmente el desencadenamiento de un proceso erosivo (desertificación, producido básicamente por el pastoreo constante (sobrepastoreo del pastizal natural. También se encuentran referencias al sector ganadero y su participación en el producto bruto geográfico (PBG de Santa Cruz y, hacia el final, un análisis comparativo de la cantidad de animales que el productor estima que puede sostener en su campo y la cantidad que el Instituto Nacional de Tecnología Agropecuaria (INTA, con base en relevamientos de pastizal, calcula que podría mantener.

Laboratórios na Área de Ensino de Línguas

Directory of Open Access Journals (Sweden)

José Carlos Paes de Almeida Filho

2017-03-01

Full Text Available O imaginário do laboratório como local de experimentação e invenções acrescentou um sentido novo a esse lugar de nascimento do conhecimento quando o Ensino de Línguas deu a essa palavra o sentido de local de prática de produção automatizadora de uma nova língua nos anos 60 e 70 do século anterior. A realidade metodológica estrutural audiolingual com sua ênfase oral na forma sistêmica rotinizadora para atender princípios psicológicos da superaprendizagem deu as condições necessárias para a invenção do laboratório de línguas que consolidou o nome laboratório associado ao ensino e aprendizagem de idiomas. Passados quase cinquenta anos da introdução do laboratório de línguas, qual o cenário de sentidos de um laboratório para os dias de hoje?  Para explorar o arco de sentidos que foram organicamente se condensando na área de Ensino de Línguas e para avaliar os sentidos de lugar e práticas condizentes de um laboratório, sete significados foram reconhecidos na prática contemporânea para que alunos de graduação em Letras (Linguagem, futuros professores e pesquisadores, e mestres já atuando na prática pudessem avaliar as possibilidades de se criar ou manter um laboratório justificável associado ao ensino de línguas.

Levels of essential and toxic elements in Porphyra columbina and Ulva sp. from San Jorge Gulf, Patagonia Argentina

International Nuclear Information System (INIS)

Perez, Adriana Angela; Farias, Silvia Sara; Strobl, Analia Mabel; Perez, Laura Beatriz; Lopez, Clara Magdalena; Pineiro, Adriana; Roses, Otmaro; Fajardo, Maria Angelica

2007-01-01

Baseline concentration levels of As, B, Ca, Cd, Cr, Cu, Co, Fe, Mg, Mn, Mo, Ni, P, Pb, Se, V, and Zn were determined for Porphyra columbina and Ulva sp. collected from three locations along San Jorge Gulf, in Patagonia Argentina. Elements were quantified by inductively coupled plasma-optical emission spectrometry, with the exception of lead and cadmium in some samples which were determined by electrothermal atomic absorption spectrometry. Three stations with different exposure degree to human activities, Bahia Solano, the mouth of Arroyo La Mata stream and Punta Maqueda, were selected as sampling points. The results showed a wide range of metal retention capacity between the two studied species. Regarding the levels of pollutants found in the researched sites, Punta Maqueda seemed to be less influenced by anthropogenic activities than the other two sites except for Cd. Taking into account their toxicities seasonal variations in Pb and Cd levels were studied in both algae in Punta Maqueda. Maximum concentrations of Cd (9.8 μg g -1 dry wt.) were observed in P. columbina during winter, and maximum levels of Pb (0.82 μg g -1 dry wt.) were detected in Ulva sp. during summer. Legislative and health safety aspects were evaluated for Cd and Pb

Levels of essential and toxic elements in Porphyra columbina and Ulva sp. from San Jorge Gulf, Patagonia Argentina

Energy Technology Data Exchange (ETDEWEB)

Perez, Adriana Angela [Catedras de Toxicologia y Quimica Legal, Biologia y Bromatologia y Nutricion, Universidad Nacional de la Patagonia San Juan Bosco, Chubut (Argentina); Farias, Silvia Sara [Comision Nacional de Energia Atomica, Gerencia de Tecnologia y Medio Ambiente, Buenos Aires (Argentina); Strobl, Analia Mabel [Catedras de Toxicologia y Quimica Legal, Biologia y Bromatologia y Nutricion, Universidad Nacional de la Patagonia San Juan Bosco, Chubut (Argentina); Perez, Laura Beatriz [Catedras de Toxicologia y Quimica Legal, Biologia y Bromatologia y Nutricion, Universidad Nacional de la Patagonia San Juan Bosco, Chubut (Argentina); Lopez, Clara Magdalena [Catedra de Toxicologia y Quimica Legal, Facultad de Farmacia y Bioquimica, Universidad de Buenos Aires (Argentina); Pineiro, Adriana [Catedra de Toxicologia y Quimica Legal, Facultad de Farmacia y Bioquimica, Universidad de Buenos Aires (Argentina); Roses, Otmaro [Catedra de Toxicologia y Quimica Legal, Facultad de Farmacia y Bioquimica, Universidad de Buenos Aires (Argentina); Fajardo, Maria Angelica [Catedras de Toxicologia y Quimica Legal, Biologia y Bromatologia y Nutricion, Universidad Nacional de la Patagonia San Juan Bosco, Chubut (Argentina)]. E-mail: copipat@sinectis.com.ar

2007-04-15

Baseline concentration levels of As, B, Ca, Cd, Cr, Cu, Co, Fe, Mg, Mn, Mo, Ni, P, Pb, Se, V, and Zn were determined for Porphyra columbina and Ulva sp. collected from three locations along San Jorge Gulf, in Patagonia Argentina. Elements were quantified by inductively coupled plasma-optical emission spectrometry, with the exception of lead and cadmium in some samples which were determined by electrothermal atomic absorption spectrometry. Three stations with different exposure degree to human activities, Bahia Solano, the mouth of Arroyo La Mata stream and Punta Maqueda, were selected as sampling points. The results showed a wide range of metal retention capacity between the two studied species. Regarding the levels of pollutants found in the researched sites, Punta Maqueda seemed to be less influenced by anthropogenic activities than the other two sites except for Cd. Taking into account their toxicities seasonal variations in Pb and Cd levels were studied in both algae in Punta Maqueda. Maximum concentrations of Cd (9.8 {mu}g g{sup -1} dry wt.) were observed in P. columbina during winter, and maximum levels of Pb (0.82 {mu}g g{sup -1} dry wt.) were detected in Ulva sp. during summer. Legislative and health safety aspects were evaluated for Cd and Pb.

Obtención de inoculantes bacterianos y evaluación de su aplicación en procesos de biorremediación de suelos contaminados con hidrocarburos policíclicos aromáticos (PAH) de la Patagonia semiárida

OpenAIRE

Madueño, Laura

2013-01-01

El objetivo general del siguiente trabajo es contribuir al mejoramiento de los conocimientos básicos que permitan evaluar y mejorar las tecnologías de biorremediación. Los objetivos específicos son: • Aislar a partir de suelos de la Patagonia semiárida, microorganismos degradadores de PAH capaces de resistir condiciones ambientales de la región. • Evaluar la aplicabilidad de las estrategias ABA de bioaumento sobre la biorremediación de suelos patagónicos contami...

Geographic distribution of genetic diversity in populations of Rio Grande Chub Gila pandora

Science.gov (United States)

Galindo, Rene; Wilson, Wade; Caldwell, Colleen A.

2016-01-01

In the southwestern United States (US), the Rio Grande chub (Gila pandora) is state-listed as a fish species of greatest conservation need and federally listed as sensitive due to habitat alterations and competition with non-native fishes. Characterizing genetic diversity, genetic population structure, and effective number of breeders will assist with conservation efforts by providing a baseline of genetic metrics. Genetic relatedness within and among G. pandora populations throughout New Mexico was characterized using 11 microsatellite loci among 15 populations in three drainage basins (Rio Grande, Pecos, Canadian). Observed heterozygosity (HO) ranged from 0.71–0.87 and was similar to expected heterozygosity (0.75–0.87). Rio Ojo Caliente (Rio Grande) had the highest allelic richness (AR = 15.09), while Upper Rio Bonito (Pecos) had the lowest allelic richness (AR = 6.75). Genetic differentiation existed among all populations with the lowest genetic variation occurring within the Pecos drainage. STRUCTURE analysis revealed seven genetic clusters. Populations of G. pandora within the upper Rio Grande drainage (Rio Ojo Caliente, Rio Vallecitos, Rio Pueblo de Taos) had high levels of admixture with Q-values ranging from 0.30–0.50. In contrast, populations within the Pecos drainage (Pecos River and Upper Rio Bonito) had low levels of admixture (Q = 0.94 and 0.87, respectively). Estimates of effective number of breeders (N b ) varied from 6.1 (Pecos: Upper Rio Bonito) to 109.7 (Rio Grande: Rio Peñasco) indicating that populations in the Pecos drainage are at risk of extirpation. In the event that management actions are deemed necessary to preserve or increase genetic diversity of G. pandora, consideration must be given as to which populations are selected for translocation.

As Redes Sociais no Sector primário

OpenAIRE

Areias, Marcos André Caetano

2013-01-01

Dissertação apresentada como requisito parcial para obtenção do grau de Mestre em Estatística e Gestão de Informação A dissertação que de seguida será apresentada enquadra-se no âmbito da importância das redes sociais, enquanto factor de utilização e de trabalho no sector primário. Como tal, tem como objectivo estudar e aprofundar o conhecimento da utilização das redes sociais no sector primário. Desta forma, a dissertação foca-se no estudo das redes sociais no sector primário de três p...

Neoplasmas do sistema urinário em 113 cães

OpenAIRE

Inkelmann,Maria Andréia; Kommers,Glaucia Denise; Fighera,Rafael A.; Irigoyen,Luiz Francisco; Barros,Claudio S.L.; Silveira,Isadora P.; Trost,Maria Elisa

2011-01-01

Foram revisados 4.723 protocolos de necropsias de cães realizadas entre janeiro de 1990 e julho de 2010 no LPV-UFSM. Os principais objetivos deste estudo retrospectivo foram determinar a prevalência e os tipos de neoplasmas que ocorreram no sistema urinário. Em 113 (2,4%) dos cães necropsiados, foram diagnosticados 27 neoplasmas primários e 86 metastáticos ou como parte de tumores multicêntricos no sistema urinário. Dos neoplasmas primários, a grande maioria teve origem epitelial. Treze casos...

A Percepção sobre Carreira dos Funcionários de uma Empresa Automotiva do Rio Grande do Sul

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Angela Beatriz Busato Garay

2012-11-01

Full Text Available Os estudos sobre carreira têm se mostrado relevantes na área de gestão de pessoas, entretanto, a maioria das pesquisas relativas ao tema é voltada a gerentes e diretores de grandes corporações.  Este artigo, por sua vez, tem como objetivo conhecer a percepção sobre carreira de funcionários das áreas administrativa e de produção de uma empresa automotiva situada na região metropolitana de Porto Alegre, Rio Grande do Sul. Esta pesquisa, com abordagem qualitativa, caracteriza-se como um estudo de caso de natureza exploratório-descritiva. O quadro teórico utilizado contempla o contexto histórico das teorias de carreira, suas concepções e significados e sua gestão. Para obtenção dos dados, utilizaram-se entrevistas semiestruturadas, realizadas com doze funcionários. A escolha dos respondentes considerou que eles não ocupassem cargos de gerência ou direção na organização, bem como seu nível de escolaridade. Os dados obtidos foram analisados quanto ao conteúdo e revelaram que a maioria dos entrevistados entende carreira como sinônimo de evolução ou ascensão profissional. Esses funcionários, de níveis hierárquicos inferiores, relacionam sua permanência na organização ao oferecimento de possibilidades de satisfação pessoal, crescimento e motivação profissional.

Laboratório químico-prático do Rio de Janeiro: primeira tentativa de difusão da Química no Brasil (1812- 1819)

OpenAIRE

Santos Nadja Paraense dos

2004-01-01

Until the present date, historians of science have described inaccurately the first laboratory created in Brazil for establishing and divulging Chemistry, namely the "Laboratório Químico-Prático do Rio de Janeiro". During recent research carried out in the Arquivo do Museu Imperial (Petrópolis, RJ), I localized a document entitled "Ensaio histórico analítico das operações do Laboratório Químico-Prático do Rio de Janeiro", which allowed me to gain the relevant information to correct some of th...

Primeiro registro de Chara indica e Chara zeylanica (Charophyceae, Charales, Characeae em reservatórios do semiárido do estado do Rio Grande do Norte, Brasil

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Gustavo Henrique Gonzaga da Silva

2013-04-01

Full Text Available http://dx.doi.org/10.5007/2175-7925.2013v26n3p243 No presente trabalho, apresentamos os primeiros registros das macroalgas Chara indica e Chara zeylanica para o estado do Rio Grande do Norte, Brasil, e para o semiárido nordestino. Exemplares de C. indica e C. zeylanica foram coletados nos reservatórios de Santa Cruz e Umari, respectivamente. Ambos os reservatórios estão localizados na bacia hidrográfica do Rio Apodi-Mossoró (oeste do estado, estando inseridos no bioma Caatinga.

Segunda Guerra Mundial, Rio de Janeiro

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Ricardo de Souza Rocha

2007-01-01

Full Text Available The purpose of this paper is to analyze the National Memorial to the World War II Dead (1956-60, a monument designed by Marcos Konder Netto and Hélio Ribas Marinho, and located in Flamengo Park, Rio de Janeiro. We start by commenting on the debates that were going on within the Modernist movement about the need for a new monumentality. Then, we examine the memorial against the urban landscape of Rio de Janeiro and its specific architectural language. Finally, we make an effort to explain the apparent paradox found in modern monuments.

Lake-level variations and tides in Lago Argentino, Patagonia: insights from pressure tide gauge records

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Andreas Richter

2015-08-01

Full Text Available Based on precise pressure tide gauge observations lake-level records are derived for two sites in Lago Argentino, southern Patagonia, of 2.5 and 1 years of duration. Applying the tools of time series analysis, the principal processes affecting the lake level are identified and quantified. Lake-level changes reflecting variations in lake volume are dominated by a seasonal cycle of 1.2 m in amplitude. Lake-volume changes occur in addition with a daily period in response to melt water influx from surrounding glaciers. Sporadic lake-volume jumps are caused by bursting of the ice dam of Perito Moreno glacier. Water movements in Lago Argentino are dominated by surface seiches reaching 20 cm in amplitude. Lake tides reach a maximum amplitude of 3 mm. The comparison of the tidal signal extracted from the lake-level observations with a model composed of the contributions of body tide and ocean tidal loading indicates a phase shift of 23° which is most likely explained by an 1 hour phase lag of global ocean tide models in the region of the highly fragmented Pacific coast. The comparison of the obtained results with those of a previous study of Lago Fagnano, Tierra del Fuego, allows to relate differences in the hydrological and hydrodynamic processes between both lakes to morphological properties. This leads to a tentative prediction of the lake-level variability to be expected from other great Patagonian lakes. The presented geodetic results shall serve as a starting point for a detailed limnological investigation of these aquatic ecosystems.

Turismo en la Patagonia: Una amenaza para la integridad ecológica del medio natural

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Luis Inostroza Pino

2008-01-01

The tourism in Patagonia is one of the industries of greater growth during the last decade and on which the development of the region of Magallanes is formed. This fever of the nature tourism is articulating to the social group in a deep functional reconversion, the arrival of the tourists grows and the sector is seen with pride by the authorities. Nevertheless one is tourism base on distributed territorial attributes on one of the natural but fragile surroundings of the country , contradiction that originates the present investigation. A comparative analysis between this tourist development sets out and the natural means , a dialectic approach from the landscape ecology by means of the indirect characterization of the ecosystems through their emergent ecological qualities associated to the properties of their fragments ,establishing the space ecological configuration of natural means and comparing it with the intensity of tourist use to that this being put under . The analysis development completely in GIS (Geographic Information System with mathematical fractal witch allows to complement it with other ecological studies of base being generated a powerful tool to orient the protection of our natural patrimony and to articulate it of a sustainable way but with possibly injurious activities. The model allows to establish a pattern of insensible tourist development with the natural means that take control of the last bastions of the ecosystem of Patagonic Andean Forest, excellent ecological areas outside the legal protection of state which shows the urgent necessity of one better territorial management of the preservation and conservation of our special ecological reality.

RIO Country Report 2015

DEFF Research Database (Denmark)

Grimpe, Christoph; Mitchell, Jessica

The 2015 series of RIO Country Reports analyse and assess the policy and the national research and innovation system developments in relation to national policy priorities and the EU policy agenda with special focus on ERA and Innovation Union. The executive summaries of these reports put forward...

Resíduos de pesticidas em sedimento de fundo de rio na Bacia Hidrográfica do Rio Cuiabá, Mato Grosso, Brasil

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Juliana Possavatz

2014-01-01

Full Text Available O rio Cuiabá é um importante tributário do rio Paraguai, cuja bacia é de grande importância por agasalhar o Pantanal, a maior área úmida do planeta. A base econômica da bacia hidrográfica do rio Cuiabá é a produção agrícola e pecuária que, para manter elevada produtividade, requer grandes quantidades de insumos agrícolas como os pesticidas que, podem atingir diversos ambientes devido aos processos de dispersão que ocorrem após sua introdução no ambiente. Os sedimentos desempenham importante papel para a caracterização da poluição de rios devido a seu potencial de acumulação de poluentes. Este estudo objetivou avaliar a contaminação por pesticidas usados nas lavouras plantadas na bacia do rio Cuiabá, MT. Para tanto, amostras de sedimento de fundo foram coletadas mensalmente de agosto de 2011 a julho de 2012. Para a determinação dos pesticidas atrazina, cipermetrina, clorpirifós, endossulfam (α, β e seu metabólito endossulfam sulfato, lambda-cialotrina, malationa, metolacloro, metribuzim, parationa metílica, permetrina e trifuralina no sedimento utilizou-se método multirresíduo que consiste na extração sólido-líquido por agitação mecânica seguida de purificação por extração líquido-líquido e identificação e quantificação por cromatografia a gás acoplada a espectrometria de massas. Resíduos de pesticidas foram identificados em amostras coletadas em agosto e setembro de 2011 e janeiro, fevereiro, abril e julho de 2012, em concentrações variando de 5,7 a 79,3 µg kg-1 . Embora a frequência de detecção tenha sido baixa, esses resultados indicam que há potencial de transporte de pesticidas usados na bacia do rio Cuiabá e seus tributários atingindo o Pantanal.

USO DE RESERVATÓRIOS DOMICILIARES E CONHECIMENTO DA POPULAÇÃO

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Juliana Alvares Duarte Bonini CAMPOS

2009-07-01

Full Text Available

A água destinada ao consumo humano deve ser adequada para a manutenção da saúde e para isso não só o tratamento mas também o armazenamento da água deve ser realizado de maneira adequada. Como os reservatórios domiciliares podem atuar como fator deteriorador, realizou-se um inquérito com 74 moradores da cidade de Araraquara visando obter informaçãoes sobre o conhecimento da finalidade e os cuidados despendidos à limpeza dos reservatórios. Os resultados monstraram que 67,6% dos entrevistados conheciam a finalidade dos reservatórios e apenas 59,5% realizavam limpeza periódica. Apesar de 94,6% saberem da necessidade das limpezas 40% justificaram não fazê-las devido as dificuldades de acesso e 53,3% por outros motivos. A classe social foi estimada através de questionário padrão e os dados obtidos avaliados estatisticamente. Dos cruzamentos apenas o estado de conservação do reservatório por classe social foi significativo. Os resutados demonstram portanto que os cuidados necessários à manutenção da qualidade da água não estão sendo observados e que campanhas de informação e esclarecimento devem ser realizadas para evitar a deterioração da qualidade da água armazenada nos reservatórios domiciliares. PALAVRAS-CHAVE: Reservatório domiciliar e qualidade da água.

A atuação do Observatório Nacional registrada nos relatórios ministeriais 1889 a 1930

Science.gov (United States)

Rodrigues, T.

2003-08-01

O período republicano até 1930 foi marcante na história do Observatório Nacional. Diversas reformas levaram a instituição a três ministérios diferentes e mudaram a ênfase do seu trabalho. A tão aguardada mudança para uma nova sede, em São Cristóvão, em 1920, não foi suficiente para que a instituição acompanhasse o ritmo tomado pela astronomia no mundo e se firmasse como ambiente de pesquisa. Uma análise simplificada poderia caracterizar um período de produção científica insignificante, dado o distanciamento da instituição dos novos rumos da astrofísica e da rápida inovação dos instrumentos, além do pequeno volume de publicações. Era uma época em que ainda não existiam os mecanismos formais de apoio e avaliação da atividade científica. Esse trabalho procura identificar a real atividade do Observatório no conteúdo dos Relatórios Ministeriais que, ao final de cada ano, apresentava as atividades, sucessos e problemas enfrentados pela instituição. Questões como instrumental e recursos humanos necessários; entraves burocráticos e financeiros; e articulações com outros observatórios se complementaram entre si ao longo desses anos para definir o perfil institucional e alguns aspectos fundamentais para a construção da astronomia no país. É possível concluir que a ênfase em serviços geográficos e de meteorologia, ao lado da inadequação dos instrumentos e do local, quase fizeram desaparecer a pesquisa em astronomia. Porém, vale destacar a sobrevivência de alguns trabalhos, como, por exemplo, variação de latitude e observação de estrelas duplas que mantiveram importante intercâmbio com outros grupos de pesquisa, demonstrando o constante esforço dos astrônomos e das diretorias em defesa da atividade científica.

A introdução da matemática moderna no Ciclo Preparatório do Ensino Secundário em Portugal

OpenAIRE

Bento, Marta Alexandra Marques

2012-01-01

Dissertação para obtenção do Grau de Mestre em Ensino da Matemática Com o presente estudo pretende-se estudar a introdução do programa de Matemática Moderna no contexto da criação do novo Ciclo Preparatório do Ensino Secundário, através da visão do Inspetor Joaquim Simões Redinha, sendo por isso necessário reunir e digitalizar documentação relativa aos primeiros anos do referido ciclo e obter notas sobre o percurso profissional e perspetivas do supramencionado inspetor. Pretende-se aind...

Violência e sofrimento social no itinerário de travestis de Santa Maria, Rio Grande do Sul, Brasil

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Martha Helena Teixeira de Souza

2015-04-01

Full Text Available No ano de 2012, realizamos pesquisa etnográfica com travestis de Santa Maria, Rio Grande do Sul, Brasil, por meio de observação participante, entrevistas e acompanhamento de suas vidas cotidianas. Durante esse período, percebemos que as violências física e simbólica e o sofrimento delas decorrentes eram invariantes, condição com a qual tinham que lidar em seus itinerários, em suas práticas e afazeres diários. Este artigo discute as violências vivenciadas nas trajetórias percorridas pelas travestis (família, escola, delegacias, serviços de saúde, procurando, sobretudo, compreender como tais violências estão relacionadas às experiências nos serviços de saúde e como os serviços de saúde por elas acessados reagiram às violências.

Análise de uma iniciativa de valorização de rios e lagoas em áreas urbanas: Programa Águas do rio (Guardiões dos rios).

OpenAIRE

Andreia Cardoso da Silva

2009-01-01

A preocupação com recursos hídricos tem sido crescente em meios urbanos. O despejo de resíduos sólidos em rios é comum por populações ribeirinhas, favorecendo a ocorrência de enchentes, a proliferação de vetores e doenças e o desprezo da comunidade pelos rios. Nesse contexto, programas que relacionam lixo, recursos hídricos e população ribeirinha têm sido objeto de várias iniciativas governamentais. Este trabalho busca avaliar uma delas: o Programa Municipal de valorização de r...

Crianças em situação de violência de um ambulatório do Rio de Janeiro: conhecendo seu perfil

OpenAIRE

Pierantoni, Lucia Martins de Magalhães; Cabral, Ivone Evangelista

2009-01-01

Buscou-se caracterizar as crianças envolvidas em situação de violência e seus familiares, e analisar o papel social do agressor/protetor no círculo da violência. Estudo quantitativo descritivo foi desenvolvido no Ambulatório da Família de um Hospital do Rio de Janeiro, entre 2006 e 2007. Dados do prontuário de 44 crianças demonstraram intensa relação entre pobreza, baixa escolaridade e gênero na matriz social da violência. Houve maior registro de meninos (64%) expostos a violência do que meni...

Estruturação elusiva de atos e negócios jurídicos no direito tributário brasileiro: limites ao planejamento tributário 

OpenAIRE

Leonardo Aguirra de Andrade

2014-01-01

O presente estudo analisa os contornos da estruturação elusiva de atos e negócios jurídicos no Direito Tributário brasileiro. Inicialmente, busca-se definir o conceito de planejamento tributário, abordando as diferentes noções de elisão fiscal, elusão fiscal e evasão fiscal, bem como os critérios contemplados pela doutrina brasileira de Direito Tributário para distinguir as condutas oponíveis e inoponíveis ao Fisco. Para melhor compreensão dos limites da conduta elusiva, examinam-se os princí...

Para que servem os inventários de fauna?

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Luís Fábio Silveira

2010-01-01

Full Text Available Inventários de fauna acessam diretamente a diversidade de uma localidade, em um determinado espaço e tempo. Os dados primários gerados pelos inventários compõem uma das ferramentas mais importantes na tomada de decisões a respeito do manejo de áreas naturais. Entretanto, vários problemas têm sido observados em diversos níveis relacionados aos inventários de fauna no Brasil e vão desde a formação de recursos humanos até a ausência de padronização, de desenho experimental e de seleção de métodos inadequados. São apresentados estudos de caso com mamíferos, répteis, anfíbios e peixes, nos quais são discutidos problemas como variabilidade temporal e métodos para detecção de fauna terrestre, sugerindo que tanto os inventários quanto os programas de monitoramento devam se estender por prazos maiores e que os inventários devem incluir diferentes metodologias para que os seus objetivos sejam plenamente alcançados.Inventories of fauna directly access the diversity of a locality in a certain period of time. The primary data generated by these inventories comprise one of the most important steps in decisions making regarding the management of natural areas. However, several problems have been observed at different levels related to inventories of fauna in Brazil, and range from the training of humans to the lack of standardization of experimental design and selection of inappropriate methods. We present case studies of mammals, reptiles, amphibians and fishes, where they discussed issues such temporal variability and methods for detection of terrestrial fauna, suggesting that both inventories and monitoring programs should be extended for longer terms and that inventories should include different methodologies to ensure that their goals are fully achieved.

Meliponiculture in Rio Grande do Norte

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Ulysses Madureira Maia

2015-12-01

Full Text Available ABSTRACT. Maia U.M., Jaffe R., Carvalho A.T. & Imperatriz-Fonseca V.L. [Meliponiculture in Rio Grande do Norte.] Meliponicultura no Rio Grande do Norte. Revista Brasileira de Medicina Veterinária, 37(4:327-333, 2015. Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Avenida Bandeirantes, 3900, Monte Alegre, Ribeirão Preto, SP 14040-901, Brasil. E-mail: ummaia@usp.br This study aimed to assess the current status of stingless bee beekeeping (meliponiculture in the State of Rio Grande do Norte, Brazil, with the aid of structured questionnaires made during visits to beekeepers. The results were compared with a previous census made in the state and with a similar study from Australia. Meliponiculture in Rio Grande do Norte is still informal and little standardized. The activity has grown in recent years considering the mean number of nests per beekeeper. Most apiaries are formed of up to 50 colonies, usually distributed in the backyards of homes. Twelve species of stingless bees were reared in the state, and the most common was the “Jandaíra” bee (Melipona subnitida, whose honey is considered medicinal. While many beekeepers already know the importance of bees as pollinators, stingless bees are still not used for crop pollination. Compared to a recent analysis of beekeeping in Australia, meliponiculture in Brazil is more traditional, honey is the main product and the number of colonies per beekeeper is much higher. Our results highlight the need to reinforce knowledge about bees and promote specific training aimed at improving and standardizing management practices.

“ÁGUA VIRA SAL LÁ NA SALINA”: O GLOSSÁRIO DOS TERMOS DO SAL NO RIO GRANDE DO NORTE NUMA PERSPECTIVA SOCIOTERMINOLÓGICA

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Moisés Batista da Silva

2016-01-01

Full Text Available O presente trabalho tem como objetivo apresentarresultados da pesquisa sobre os termos usados na Indústriado sal, em três municípios que fazem parte da região salineirado Rio Grande do Norte. Primeiramente, abordamosas diferentes ciências do Léxico estudadas por Boutin--Quesnel (1985, Barbosa (1994,1995, Barros (2004,dando ênfase maior nas orientações teórico-metodológicasda Socioterminologia (FAULSTICH, 1995, 1996, 1998,2006. Em seguida, expomos os procedimentos tanto dametodologia de campo quanto da metodologia da organizaçãodo Glossário da Terminologia do Sal - GLOSSAL(SILVA, 2007. Depois, apresentamos uma amostra dosverbetes, as análises feitas a partir desse repertório e, porfim, as considerações finais quanto aos fatos linguísticos,observados nesse glossário. Desse modo, essa pesquisa sejustifica por possibilitar a divulgação de um produto terminográficodestinado, não só aos especialistas e pesquisadoresdas Ciências do Léxico, como também ao grandepúblico e aos interessados em aprofundar seus estudos naterminologia do sal.Palavras-chave: Sal. Indústria do Sal. Terminologia. Socioterminologia.Glossário.

Seasonal determination of trace and ultra-trace content in Macrocystis pyrifera from San Jorge Gulf (Patagonia) by Total Reflection X-ray Fluorescence

Science.gov (United States)

Salomone, Vanesa N.; Riera, Marina; Cerchietti, Luciana; Custo, Graciela; Muniain, Claudia

2017-05-01

Seaweed have a great capacity to accumulate heavy metals in their tissues. The chemical characterization of seaweed is important due to their use in environmental monitoring and human or animal food. The aim of the present study was to evaluate the multi-elemental composition of seaweed from San Jorge Gulf (Patagonia, Argentina) by Total Reflection X-ray Fluorescence (TXRF). The elements As, Br, Cu, Cr, Fe, Mn, Ni, Pb, Rb, Sr, V and Zn were seasonally analyzed and quantified in blades of Macrocystis pyrifera. TXRF showed to be a suitable technique for simultaneous multi-element analysis in this kind of samples. The results revealed seasonal variations in the chemical content for some elements; arsenic content was maximum in summer and autumn, iron concentration increased to the winter and zinc concentration was maximum in autumn. The sum of principal micronutrients (Fe + Zn + Mn + Cu) varied between 114 and 171 mg k- 1 g dw. The total As concentration ranged between 36 and 66 mg kg- 1. Lead, nickel and copper were not detected.

Sedimentation in Rio La Venta Canyon in Netzahualcoyotl Reservoir, Chiapas, Mexico

Science.gov (United States)

de La Fuente, J. A.; Lisle, T.; Velasquez, J.; Allison, B. L.; Miller, A.

2002-12-01

Sedimentation of Rio La Venta as it enters the Netzahualcoyotl Reservoir in Chiapas, Mexico, threatens a unique part of the aquatic ecosystem. Rio La Venta enters the reservoir via a narrow canyon about 16 km long with spectacular, near-vertical limestone bluffs up to 320 m high and inhabited by the flora and fauna of a pristine tropical forest. Karst terrain underlies most of the Rio La Venta basin in the vicinity of the reservoir, while deeply weathered granitic terrain underlies the Rio Negro basin, and the headwaters of the Rio La Venta to the south. The Rio Negro joins Rio La Venta 3 km downstream of the upper limit of the reservoir and delivers the bulk of the total clastic sediment (mostly sand and finer material). The canyon and much of the contributing basin lie within the Reserva de la Biosfera, Selva El Ocote, administered by the Comision Nacional de Areas Naturales Protegidas, part of the Secretaria de Medioambiente y Recursos Naturales. The Klamath National Forest Forest has cooperated with its Mexican counterparts since 1993 in natural resource management, neo-tropical bird inventories, wildfire management, and more recently in watershed analyses. Rates of sedimentation are estimated from bathymetric surveys conducted in March, 2002. A longitudinal profile down the inundated canyon during a high reservoir level shows an inflection from a slope of 0.0017 to one of 0.0075 at 7.2 km downstream of the mouth of Rio Negro. The bed elevation at this point corresponds to the lowest reservoir level, suggesting that the gentler sloping bed upstream is formed by fluvial processes during drawdown and that downstream by pluvial processes. Using accounts that boats could access Rio Negro during low water levels in 1984, we estimate an annual sedimentation rate of roughly 3 million cubic meters per year. This suggests that boats might no longer be able to access the most spectacular section of canyon upstream of Rio Negro within a decade, depending on how the

Validade de indicadores de atividade física e comportamento sedentário da Pesquisa Nacional de Saúde do Escolar entre adolescentes do Rio de Janeiro, Brasil

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Letícia Ferreira Tavares

2014-09-01

Full Text Available Analisou-se a validade relativa dos indicadores de atividade física do questionário utilizado na Pesquisa Nacional de Saúde do Escolar (PeNSE entre adolescentes da cidade do Rio de Janeiro, Brasil. Foram estudados 174 alunos. Avaliaram-se os seguintes indicadores referentes ao tempo semanal acumulado com a prática de atividade física: ATIVO-300MIN (acumulou 300 minutos ou mais; ATIVO-150MIN (acumulou 150 minutos ou mais; INATIVO (não praticou atividade física. Também foram estudados os indicadores de comportamento sedentário referentes ao tempo diário despendido assistindo TV, jogando videogame e usando computador. Foram comparados os resultados do questionário e dos três recordatórios de 24 horas. Os resultados de ATIVO-300MIN, ATIVO-150MIN e INATIVO gerados pela PeNSE apresentaram alta acurácia. Esses indicadores tiveram melhor desempenho que os de comportamento sedentário, tanto em relação às estimativas de frequência quanto em relação à sensibilidade, especificidade e índice de acurácia. Os indicadores de atividade física da PeNSE apresentaram validade relativa satisfatória.

Indicação de exames pré-operatórios segundo critérios clínicos: necessidade de supervisão

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Aline Pallaoro Garcia

2014-01-01

Full Text Available Justificativa e objetivos: a solicitação indiscriminada de exames complementares na avaliação pré-anestésica é comum na prática clínica e implica custos adicionais e a possibilidade de resultados falso-positivos. Os objetivos desta pesquisa foram analisar se os exames pré-operatórios em cirurgias eletivas são solicitados segundo critério clínico e avaliar os custos desnecessários para a instituição. Métodos: foram avaliadas as solicitações de exames pré-operatórios em pacientes adultos submetidos a cirurgias eletivas não cardíacas. Os exames foram solicitados pelos cirurgiões, conforme protocolo do Serviço de Anestesia. Foram avaliados dados demográficos, estado físico, comorbidades e tipo de exame complementar solicitado. Os exames feitos foram comparados com os exames indicados. O custo dos exames foi baseado na tabela Datasus. Resultados: foram avaliados 1.063 pacientes. Verificou-se que 41,9% dos exames feitos nos pacientes classificados como ASA I não estavam indicados. No grupo de risco ASA II foram feitos 442 exames (17,72% sem necessidade. Perceberam-se elevadas porcentagens na solicitação de hemograma, creatinina, coagulograma, raios X de tórax e ECG nos grupos ASA I-II. Apenas 40 (5,25% dos exames feitos no grupo ASA III não estavam indicados. Nos pacientes do grupo ASA IV, 22,5% dos exames necessários não foram feitos. Ressalta-se uma economia anual de 13% (R$1.923,13 caso os exames fossem feitos conforme o protocolo. Conclusões: os exames pré-operatórios nem sempre são solicitados de acordo com critérios clínicos, o que resulta em maiores custos para a instituição.

Rio Chama Floodplain Management Study

Data.gov (United States)

Earth Data Analysis Center, University of New Mexico — The Village of Chama requested the Soil Conservation Service, through the Upper Chama Soil and Water Conservation District, to conduct a study of the Rio Chama and...

Energy balance of the Rio de Janeiro State - 1980/1994

International Nuclear Information System (INIS)

1995-01-01

This document informs the energetic balance for Rio de Janeiro State -1980/1994, containing the energy fluxes from primary and secondary energy sources in the main sectors of Rio de Janeiro economy. 50 figs., 139 tabs

RIO EPICS device support application case study on an ion source control system (ISHP)

Energy Technology Data Exchange (ETDEWEB)

Sanz, Diego [UPM – Universidad Politécnica de Madrid, Madrid (Spain); Ruiz, Mariano, E-mail: mariano.ruiz@upm.es [UPM – Universidad Politécnica de Madrid, Madrid (Spain); Eguiraun, Mikel [Department of Electricity and Electronic, Faculty of Science and Technology, University of Basque Country, Bilbao (Spain); Arredondo, Iñigo [ESS Bilbao Consortium, Zamudio (Spain); Badillo, Inari; Jugo, Josu [Department of Electricity and Electronic, Faculty of Science and Technology, University of Basque Country, Bilbao (Spain); Vega, Jesús; Castro, Rodrigo [Asociación EURATOM/CIEMAT, Madrid (Spain)

2015-10-15

Highlights: • A use case example of RIO/FlexRIO design methodology is described. • Ion source device is controlled and monitored by means EPICS IOCs. • NIRIO EPICS device support demonstrates that is able to manage RIO devices. • Easy and fast deployment is possible using RIO/FlexRIO design methodology using NIRIO-EDS. • RIO/FlexRIO technology and EPICS are a good combination for support large scale experiments in fusion environments. - Abstract: Experimental Physics and Industrial Control System (EPICS) is a software tool that during last years has become relevant as a main framework to deploy distributed control systems in large scientific environments. At the moment, ESS Bilbao uses this middleware to perform the control of their Ion Source Hydrogen Positive (ISHP) project. The implementation of the control system was based on: PXI Real Time controllers using the LabVIEW-RT and LabVIEW-EPICS tools; and RIO devices based on Field-Programmable Gate Array (FPGA) technology. Intended to provide a full compliant EPICS IOCs for RIO devices and to avoid additional efforts on the system maintainability, a migration of the current system to a derivative Red Hat Linux (CentOS) environment has been conducted. This paper presents a real application case study for using the NIRIO EPICS device support (NIRIO-EDS) to give support to the ISHP. Although RIO FPGA configurations are particular solutions for ISHP performance, the NIRIO-EDS has permitted the control and monitoring of devices by applying a well-defined design methodology into the previous FPGA configuration for RIO/FlexRIO devices. This methodology has permitted a fast and easy deployment for the new robust, scalable and maintainable software to support RIO devices into the ISHP control architecture.

A pertinência da arquitetura no marketing imobiliário

OpenAIRE

Silva, António Augusto Ferreira da

2013-01-01

Mestrado Integrado em Arquitectura Exame público realizado em 17 de Outubro de 2013 A habitação surge no mercado atual como um produto repetitivo na oferta e qualidade residencial, resultado da ausência de investigação por parte dos intervenientes no setor imobiliário, demonstrando uma abordagem pouco real das verdadeiras necessidades e desejos dos compradores do produto imobiliário. Num setor imobiliário cada vez mais competitivo, a análise da oferta habitacional torna-se fator esse...

The Link between Protein Kinase CK2 and Atypical Kinase Rio1

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Konrad Kubiński

2017-02-01

Full Text Available The atypical kinase Rio1 is widespread in many organisms, ranging from Archaebacteria to humans, and is an essential factor in ribosome biogenesis. Little is known about the protein substrates of the enzyme and small-molecule inhibitors of the kinase. Protein kinase CK2 was the first interaction partner of Rio1, identified in yeast cells. The enzyme from various sources undergoes CK2-mediated phosphorylation at several sites and this modification regulates the activity of Rio1. The aim of this review is to present studies of the relationship between the two different kinases, with respect to CK2-mediated phosphorylation of Rio1, regulation of Rio1 activity, and similar susceptibility of the kinases to benzimidazole inhibitors.

Twitteratura: aproximando letramento literário e letramento digital

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Vinicius Carvalho Pereira

2017-07-01

Full Text Available As práticas de letramento literário da escola brasileira voltam-se majoritariamente para textos em suporte impresso, embora parte significativa da produção literária contemporânea em língua portuguesa venha sendo feita em suporte eletrônico ou digital. Tal disjunção se deve, entre outros fatores, à predominância de obras canônicas no currículo escolar, à natureza impressa do livro didático e a um entendimento restrito do que seja o texto literário. Por outro lado, assistimos ao uso crescente de aparelhos celulares e smartphones em sala de aula, raramente articulado ao processo de ensino-aprendizagem, ainda que esses dispositivos possam integrar práticas de letramento literário na esfera digital. No presente artigo, discutem-se questões teórico-metodológicas acerca do uso, em sala de aula, de celulares e smartphones para o trabalho com um gênero literário emergente: a Twitteratura. Da página à tela, do ponto ao pixel, novos entendimentos do literário podem ser introduzidos no currículo escolar, propiciando uma compreensão mais ampla sobre as relações sobredeterminantes entre linguagem, sociedade e tecnologia.

Processo sucessório na governança de organizações familiares: um estudo exploratório nas “Mehores Empresas"

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Rodrigo Silva

2014-05-01

Full Text Available Este artigo se propõe a levantar práticas por meio das quais organizações familiaresenfrentam o desafio da sucessão dos seus profissionais. Para o cumprimento desseobjetivo foi realizada uma pesquisa exploratória de levantamento de práticas relativas aoplanejamento sucessório entre as Melhores Empresas para Você Trabalhar no Brasil. Como intuito de levantar as principais características do planejamento sucessório adotadas pelasorganizações familiares, foi realizada uma pesquisa de levantamento exploratória. Para arealização das análises do presente trabalho, foram consideradas as ações de Dutra (2010para estruturação do planejamento sucessório. Em síntese, a literatura evidencia que emboraa sucessão constitua evento de fundamental importância para a continuidade dos negócios esobrevivência das empresas familiares, ela poderá tornar-se traumática, se não for conduzidade forma racional, o que demonstra a necessidade de tal processo se desenvolver através deplanejamento cuidadoso e racional, que procure levar em conta a ampla gama de fatores queo afetam. No caso das empresas familiares, nota-se o desafio de considerar as questõesemocionais e afetivos na discussão do planejamento sucessório. Constatou-se pouca atençãoaos aspectos emocionais do processo sucessório nas organizações familiares.

Aplicação do fluxo unitário da produção na manufatura do vestuário de moda

OpenAIRE

Chi Ming Wan

2016-01-01

O objetivo deste trabalho é discutir a aplicação do Fluxo Unitário da Produção (FUP) no processo de fabricação do vestuário de moda, com ênfase em produtos de moda feminina. Para tanto, foi realizada uma pesquisa de campo, por meio de estudo de caso, em empresa do setor. O resultado da pesquisa mostra que, apesar das particularidades do setor, como o baixo volume de produção, curto ciclo de vida do produto e grande diversidade de modelos, a aplicação do Fluxo Unitário da Produção na manufatur...

Corpo, mito e imaginário nos postais das praias cariocas

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Euler David de Siqueira

Full Text Available "Cidade Maravilhosa", "capital cultural", o Rio de Janeiro é ícone do Brasil em uma série de discursos, entre eles o turístico. As bancas de jornal da cidade exibem cartões-postais com fotos que exploram a imagem do corpo feminino na orla carioca e a mostram como imagem da cidade. A partir da análise de uma amostra intencional e não-probabilística de exemplares dessa mídia, o objetivo deste trabalho é o de estudar a relação entre o corpo e o espaço urbano na construção do imaginário sobre a cidade do Rio de Janeiro. Entre alguns dos resultados encontrados, observa-se a construção de um imaginário que reforça antigos clichês em que a cidade do Rio de Janeiro e seus personagens são apresentados como tendo uma natureza sensual, quente e festiva.

Elaboração de questionário de frequência alimentar semiquantitativo para adolescentes da região metropolitana do Rio de Janeiro, Brasil Development of a semiquantitative food frequency questionnaire for adolescents from the Rio de Janeiro metropolitan area, Brazil

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Marina Campos Araujo

2010-04-01

Full Text Available OBJETIVO: Descrever a elaboração de um questionário de frequência alimentar para adolescentes do Rio de Janeiro, Brasil. MÉTODOS: Para seleção dos itens alimentares incluídos no questionário de frequência alimentar, utilizaram-se dados de três dias de registro alimentar obtidos em uma amostra de 430 estudantes, na faixa etária de 12 a 19 anos, da rede de ensino estadual de Niterói, Rio de Janeiro. Foram incluídos os itens alimentares mais citados nos registros e que contribuíram com 95% do consumo de energia e nutrientes dos registros alimentares. As porções de referência foram as mais frequentemente referidas nos registros do estudo de base. As opções de frequência foram definidas de forma diferenciada para os diversos itens do questionário. RESULTADOS: Nos registros foram listados 306 alimentos, dos quais 249 itens foram incluídos no questionário, isoladamente ou agrupados, compondo uma lista de 90 itens. Os 14 itens alimentares mais consumidos por adolescentes do Rio de Janeiro, nesse estudo e em estudo anterior, foram associados a oito opções de frequência de consumo; 18 itens alimentares foram acoplados a sete opções de frequência e para 58 itens foram definidas cinco opções de frequência. CONCLUSÃO: O estudo permitiu a elaboração do questionário de frequência alimentar para adolescentes da Região Metropolitana do Rio de Janeiro, o qual será submetido às análises de reprodutibilidade e validade. Este questionário representa um instrumento valioso para pesquisas epidemiológicas que investiguem o consumo alimentar de adolescentes.OBJECTIVE: The objective of this study was to describe the development of a food frequency questionnaire for adolescents from the Rio de Janeiro metropolitan area, Brazil. METHODS: The selection of food items included in the questionnaire was done by recording the foods consumed during 3 days by 430 students aged 12 to 19 years from the public schools of Niterói (RJ Brasil

Relatório integrador da actividade profissional

OpenAIRE

Oliveira, Maria João Belo

2015-01-01

Relatório integrador da atividade profissional para a obtenção do Grau de Mestre em Tecnologia Alimentar, na Escola Superior Agrária, do Instituto Politécnico de Santarém A informação apresentada neste relatório pretende demonstrar como algumas das competências adquiridas ao longo da formação académica foram aplicadas e desenvolvidas em contexto profissional. São apresentadas as empresas onde a autora colaborou, descrevendo-se as atividades desenvolvidas. A autora obteve em 199...

A Water Resources Management Model to Evaluate Climate Change Impacts in North-Patagonia, Argentina

Science.gov (United States)

Bucciarelli, L. F.; Losano, F. T.; Marizza, M.; Cello, P.; Forni, L.; Young, C. A.; Girardin, L. O.; Nadal, G.; Lallana, F.; Godoy, S.; Vallejos, R.

2014-12-01

Most recently developed climate scenarios indicate a potential future increase in water stress in the region of Comahue, located in the North-Patagonia, Argentina. This region covers about 140,000 km2 where the Limay River and the Neuquén River converge into the Negro River, constituting the largest integrated basins in Argentina providing various uses of water resources: a) hydropower generation, contributing 15% of the national electricity market; b) fruit-horticultural products for local markets and export; c) human and industrial water supply; d) mining and oil exploitation, including Vaca Muerta, second world largest reserves of shale gas and fourth world largest reserves of shale-oil. The span of multiple jurisdictions and the convergence of various uses of water resources are a challenge for integrated understanding of economically and politically driven resource use activities on the natural system. The impacts of climate change on the system could lead to water resource conflicts between the different political actors and stakeholders. This paper presents the results of a hydrological simulation of the Limay river and Neuquén river basins using WEAP (Water Evaluation and Planning) considering the operation of artificial reservoirs located downstream at a monthly time step. This study aims to support policy makers via integrated tools for water-energy planning under climate uncertainties, and to facilitate the formulation of water policy-related actions for future water stress adaptation. The value of the integrated resource use model is that it can support local policy makers understand the implications of resource use trade-offs under a changing climate: 1) water availability to meet future growing demand for irrigated areas; 2) water supply for hydropower production; 3) increasing demand of water for mining and extraction of unconventional oil; 4) potential resource use conflicts and impacts on vulnerable populations.

O Barão do Rio Branco opina sobre o Marechal Deodoro

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E. Bradford Burns

1967-06-01

Full Text Available O Barão do Rio Branco era partidário dedicado da monarquia. Herdou essa convicção de seu ilustre pai, um dos maiores estadistas do Império; e êle mesmo serviu com muito zêlo e dedicação ao Imperador quando na Europa.

Características de repositório educacional aberto para usuários de língua brasileira de sinais

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Romario Antunes da Silva

Full Text Available O objetivo desse artigo é identificar as características que um repositório educacional aberto deve apresentar para atender as necessidade de informação dos alunos surdos e ouvintes do curso Letras Libras na modalidade a distância da Universidade Federal de Santa Catarina. Os objetivos específicos foram: a descrever o perfil dos alunos surdos e ouvintes; b examinar o uso das tecnologias da informação por esses alunos; e c identificar os documentos que um repositório deve apresentar para atender as necessidades de informação desses alunos. A pesquisa é exploratória, descritiva e qualitativo-quantitativa, e a análise foi realizada com estatística descritiva e análise de conteúdo. Conclui-se que os alunos utilizam o e-mail, as listas de discussão, o Messenger, ferramentas para compartilhamento de vídeos e os sites para surdos. Os alunos consideram muito importantes os processadores de texto, Messenger, Movie Maker, Media Player e planilhas para cálculo. Os alunos surdos consideram como documentos mais relevantes as videoaulas, dicionários e apostilas, e os alunos ouvintes, as videoaulas, os livros e as apostilas. O tipo de conteúdo requisitado são notícias sobre surdos, língua brasileira de sinais, tradução, tecnologia, linguística, aprendizagem do português, interpretação médico-jurídica e cultura surda. Os suportes requisitados para acesso à informação são os dicionários, vídeos, livros digitais e artigos. Os alunos preferem acessar as informações no repositório por meio de língua de sinais, legendas e em português.

Território e Rede da União do Vegetal

OpenAIRE

Morales Arteaga, Pamela Elizabeth

2016-01-01

Esta pesquisa trata do território e das redes geográficas da religião ayahusaqueira União do Vegetal, em Brasília. Busca-se interpretar os objetivos da pesquisa que foram; a construção do território da União do Vegetal, diferençando elementos relevantes do território; debatendo a hierarquização do grupo na sua atuação territorial e relacionando as percepções dos adeptos com suas práticas territoriais em rede. As hipóteses que nortearam o trabalho foram; A construção do território sagrado da U...

The passage from Rio.

Science.gov (United States)

Strong, M F

1992-01-01

The Secretary-General of the UN Conference on Environment and Development notes that after the Earth Summit in Rio de Janeiro discussions about the environment and development will differ from those prior to the Summit. These discussions must now incorporate problems of developing countries, poverty, inequalities, flow of resources to developing countries, and terms of trade. The Rio Declaration on Environment and Development consists of important tenets, but it must evolve into an Earth Charter to be endorsed on the 50th anniversary of the UN in 1965. The Summit's Plan of Action, Agenda 21, must also continue to evolve and, despite its shortcomings, is the most extensive and, if implemented, most effective international action ever approved by the international community. Financing the Agenda 21 initiatives remains to be decided. New possible sources of funding must be based n the polluter pays principle and may include new taxes, user charges, emission permits, and citizen funding. Even though the most serious problem in the 1990s is stabilization of atmospheric gases, the Rio agreement does not include targets or timetables. Governments must take united action immediately to reduce carbon dioxide emissions by at least 60%. 1 nation has not yet approved the convention on biological diversity. Governments also need to move forward on conventions on decertification and deforestation. They need to incorporate the global objectives of Agenda 21 into their own national policies and practices. This must also be done at the global, regional, organizational, local, and individual levels. The global community must also begin technology capacity building. The participatory process should also include nongovernmental organizations. Population growth must also slow dramatically to achieve sustainable development. The various participatory levels must consider elimination of poverty.

Differential use of the Argentine shelf by wintering adults and juveniles southern giant petrels, Macronectes giganteus, from Patagonia

Science.gov (United States)

Blanco, Gabriela S.; Quintana, Flavio

2014-08-01

To study habitat use and at-sea movements of southern giant petrels (SGP) during non-breeding period, we deployed 15 satellite transmitters (six adults, nine juveniles) at Isla Arce and Isla Gran Robredo colonies in Patagonia, Argentina. Birds were instrumented during 81.4 ± 37 days. Adult birds used 74% of the Argentine shelf concentrating mainly at the shelf break, middle shelf waters, and the surroundings of the colony. After fledging, juveniles spread to the Argentine, Uruguayan and Brazilian shelves within the South Atlantic. Adults alternated at-sea excursions (12 ± 5 days) with periods at the colony of 3 ± 0.3 days. Contrarily, juveniles moved first to the shelf break and then traveled northwards reaching the south of Brazil. There was some spatial overlap between age classes, but only during the first 30 days after juveniles had fledged; thereafter there was not overlap between the areas used by both age classes. The Argentine shelf is widely used by different species offering a suitable environment for foraging; this may be why adults SGP from Patagonian colonies spend all year-round within the Argentine shelf. The identification of used areas of non-breeding SGP fills a gap in the species knowledge contributing not only to the preservation the species, but also to the management of marine areas globally recognized as important for many other Procellariiformes.

O aniversário do Pasquim: 22 anos em 5

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Márcia Neme Buzalaf

2009-04-01

Full Text Available Resenha: Pasquim 40 anos: Edição Comemorativa. Rio de Janeiro: Desiderata, 2009, 40 p. e Antologia do Pasquim - volume III:1973-1974, de Jaguar e Sérgio Augusto (Org.. Rio de Janeiro: Desiderata, 2009, 376 p.

Bases epidemiológicas do Fator Acidentário Previdenciário Epidemiological foundations of the Accident Insurance Factor

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Vilma Sousa Santana

2005-12-01

Full Text Available ANTECEDENTES: O Conselho Nacional de Previdência Social, por meio da Resolução No. 1.236 de 28/4/2004, aprovou uma nova metodologia para definição do valor das alíquotas de contribuição devidas por empresas para o financiamento de benefícios previdenciários relacionados aos riscos do trabalho. Esta metodologia baseia-se em um indicador denominado de Fator Acidentário Previdenciário, FAP, construído a partir do risco epidemiológico, estimado para cada ramo de atividade econômica. Como parte da sua estratégia de validação, o Ministério da Previdência Social decidiu pela avaliação da sua consistência epidemiológica. OBJETIVOS: Nesse estudo analisaram-se os propósitos, as fontes de informação, a natureza das medidas epidemiológicas empregadas e a metodologia da construção desse indicador, identificando-se as suas vantagens e limitações, aplicabilidade e impactos potenciais futuros. MÉTODOS: Análise documental da Resolução No. 1236 e do documento anexo. RESULTADOS: O FAP avança ao se pautar por critérios científicos transparentes que poderão permitir a redução das alíquotas quando houver efetiva melhoria das condições de trabalho, e conseqüentemente, da morbimortalidade entre trabalhadores. Supera as dificuldades relacionadas à definição e registro do nexo causal das doenças do trabalho ao considerá-las em sua totalidade, não se restringido às ocupacionais. Como prevê a redução de alíquotas com a melhoria das condições de saúde dos trabalhadores poderá contribuir para uma mais efetiva atuação dos empregadores na prevenção. CONCLUSÕES: É necessário o acompanhamento contínuo e sistemático da aplicação do FAP, com ampla participação da sociedade, revisando-o e ajustando-o aos diferentes cenários econômicos, sociais e de saúde do País, atentando-se para o seu impacto sobre a arrecadação e contas da Previdência Social.BACKGROUND: The Brazilian National Social Insurance

Motivações de candidatos e voluntários na Cidade Viva

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Jéssika Kadidja de Oliveira Medeiros

2017-07-01

Full Text Available O trabalho voluntário é a força das organizações da sociedade civil. Existem diferenças entre o trabalho voluntário e o formal, como a remuneração e o tempo destinado ao desempenho das atividades. Ao contrário de trabalhadores formais, voluntários não recebem pagamento para o desempenho de funções. Logo, teorias motivacionais desenvolvidas numa perspectiva de trabalho formal não devem ser aplicadas a este grupo. Esse estudo identificou motivações apresentadas pelos candidatos a voluntários e atuais voluntários da Fundação Cidade Viva em João Pessoa. Quanto aos resultados, verifica-se predominância do perfil altruísta em ambas as fases utilizadas do modelo. Ainda, o perfil egoísta, foi o menos apresentado pelos respondentes da pesquisa. Outros resultados, relativos ao desligamento da atividade voluntária na Fundação, foram bastante inconclusivos.

An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina

Science.gov (United States)

Apesteguía, Sebastián; Smith, Nathan D.; Juárez Valieri, Rubén; Makovicky, Peter J.

2016-01-01

Background Late Cretaceous terrestrial strata of the Neuquén Basin, northern Patagonia, Argentina have yielded a rich fauna of dinosaurs and other vertebrates. The diversity of saurischian dinosaurs is particularly high, especially in the late Cenomanian-early Turonian Huincul Formation, which has yielded specimens of rebacchisaurid and titanosaurian sauropods, and abelisaurid and carcharodontosaurid theropods. Continued sampling is adding to the known vertebrate diversity of this unit. Methodology/ Principal Findings A new, partially articulated mid-sized theropod was found in rocks from the Huincul Formation. It exhibits a unique combination of traits that distinguish it from other known theropods justifying erection of a new taxon, Gualicho shinyae gen. et sp. nov. Gualicho possesses a didactyl manus with the third digit reduced to a metacarpal splint reminiscent of tyrannosaurids, but both phylogenetic and multivariate analyses indicate that didactyly is convergent in these groups. Derived characters of the scapula, femur, and fibula supports the new theropod as the sister taxon of the nearly coeval African theropod Deltadromeus and as a neovenatorid carcharodontosaurian. A number of these features are independently present in ceratosaurs, and Gualicho exhibits an unusual mosaic of ceratosaurian and tetanuran synapomorphies distributed throughout the skeleton. Conclusions/ Significance Gualicho shinyae gen. et sp. nov. increases the known theropod diversity of the Huincul Formation and also represents the first likely neovenatorid from this unit. It is the most basal tetatanuran to exhibit common patterns of digit III reduction that evolved independently in a number of other tetanuran lineages. A close relationship with Deltadromaeus from the Kem Kem beds of Niger adds to the already considerable biogeographic similarity between the Huincul Formation and coeval rock units in North Africa. PMID:27410683

Prevalência, distribuição geográfica e sazonal de protozoários e mixozoários parasitos de jaú (Zungaro jahu no Pantanal Matogrossense

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Edson A. Adriano

2012-12-01

Full Text Available Estudo realizado no Pantanal Matogrossense, avaliou a prevalência, a distribuição geográfica e sazonal de protozoários e mixozoários parasitos de jaú (Zungaro jahu. Os peixes foram capturados no Sul do Pantanal, na região dos rios Aquidauana, Miranda e Paraguai, em 2001, 2002 e 2003, na região Central (Parque Nacional do Pantanal - PARNA Pantanal em 2003, 2004, 2005 e 2008, e na região Norte (rios Cuiabá e Manso, no município de Nobres em 2003, 2004 e 2005. Foi identificado Trichodina sp. parasitando pele e brânquias de jaú nas três regiões estudadas. Ocorrência de Epistylis sp. na pele e Cryptobia sp. nas brânquias foram restritas às coletas da região Central, enquanto Ichthyophthirius multifiliis foi identificado parasitando a pele nas três regiões estudadas. Também foi observada a ocorrência de mixozoários, Myxobolus cordeiroi parasitando vários órgãos e Henneguya sp. parasitando brânquias de jaú das três regiões estudadas.

Do documentário histórico ao imaginário antropológico do regime militar brasileiro: uma leitura simbólica sobre o golpe de 1964

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Eduardo Portanova Barros

2017-09-01

Full Text Available Este artigo oferece uma leitura simbólica sobre o imaginário que movimenta seis filmes documentários relativos ao regime militar brasileiro. Elegemos os Estudos do Imaginário como heurística apropriada à revelação de imagens simbólicas, simbolismos e narrativas míticas estimuladas pelas representações fílmicas tanto do governo de João Goulart quanto do golpe civil-militar que o tirou da Presidência da República. A partir de documentação audiovisual, acessamos os elementos constitutivos do imaginário que move as obras. Assim, esperamos proporcionar uma complementação ao entendimento sobre esse período obscuro da sociedade brasileira, bem como oferecer uma abordagem alternativa à pesquisa em Comunicação sobre documentários históricos.

BRIQUETAGEM DE FINOS DE CALCÁRIO

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Mariana Rezende Barros

2015-12-01

Full Text Available Aplicação da tecnologia na agricultura dentro do sistema de produção é realidade principalmente com a abertura de mercados através da globalização. Em diversas áreas da indústria moderna, o calcário é utilizado como corretor da acidez do solo. A calagem é uma prática barata, porém ainda é negligenciada quanto ao seu uso, na adoção da técnica, à definição das doses e às formas de aplicação. A briquetagem consiste na aglomeração de partículas finas através de pressão, auxiliada ou não por aglomerantes, permitindo obtenção de produtos compactados, com forma, tamanho e parâmetros mecânicos adequados. A redução de volume do material, além dos benefícios tecnológicos, permite que materiais finos possam ser transportados e armazenados de forma mais econômica. A recente preocupação ambiental, resultando em leis mais rígidas, além da necessidade de aproveitar economicamente os resíduos e as partículas finas geradas no beneficiamento de minérios fez com que a briquetagem voltasse a ser uma importante alternativa para aglomerar valor econômico. O objetivo deste trabalho foi aglomerar finos de calcário através da briquetagem (92% abaixo de 500# ou 25 µm gerados no processamento do mesmo, variando as dosagens de água (utilizada como agente aglomerante de 0; 5; 7,5; 10; 12,5 e 15%. O calcário, originário de Lagamar (MG, foi classificado quimicamente como dolomítico tipo D. Os briquetes foram submetidos a testes de queda a 30, 60, 90, 120 e 150 cm de altura. Os melhores resultados encontrados para ensaios de queda foram obtidos com 7,5% de umidade, com médias de 21 quedas para 30 cm e 10 quedas para 60 cm de altura. Tais resultados apresentaram-se favoráveis quando comparados à literatura, a qual cita que para briquetes sem cura, considera-se 3 quedas a 0,3 m como valor razoável.

LAS NORMAS JURÍDICAS Y LAS POLÍTICAS PÚBLICAS SOBRE BOSQUES CULTIVADOS EN LAS REGIONES DEL CENTRO Y DE PATAGONIA EN ARGENTINA

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C. M. MINAVERRY

2017-08-01

Full Text Available El eje central de este trabajo es analizar el nivel de desarrollo de las normas jurídicas, de las políticas públicas, y de la idoneidad de las autoridades de aplicación sobre bosques cultivados, en las regiones del Centro y de la Patagonia en Argentina. Se trata de una investigación de carácter exploratorio, donde se aplicó el método de la hermenéutica jurídica y los indicadores ambientales PER. Se puede concluir que los niveles de desarrollo normativo de las provincias no son uniformes, y que la mayoría de las normas jurídicas y de las políticas públicas tienden a establecer incentivos económicos para aprovechar el efecto del mercado, sin orientarse hacia una protección integral de los ecosistemas boscosos, y que las autoridades de aplicación en su mayoría no son técnicamente adecuadas para eso.

Ensino religioso e assistência religiosa no Rio Grande do Sul: quadros exploratórios = Religious education and religious assistance in Rio Grande do Sul: exploratory frameworks

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Giumbelli, Emerson

2011-01-01

Full Text Available Partindo de uma perspectiva que se interessa pelas configurações geradas pela relação entre sociedade e religião, o texto aborda dois temas: ensino religioso em escolas públicas e assistência religiosa em instituições destinadas à internação de adolescentes que cumprem medida socioeducativa. A maior parte dos dados refere-se ao Rio Grande do Sul, procurando-se apresentar um quadro exploratório para ambos os temas. Mais especificamente, os resultados incidem sobre as formas que caracterizam o modo de relação entre determinadas instituições públicas e a religião e o modo pelo qual se definem configurações de diversidade religiosa

A new species of Microglanis (Siluriformes: Pseudopimelodidae from upper rio Paraná basin, Brazil

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Oscar Akio Shibatta

Full Text Available Microglanis garavelloi, new species, collected in tributaries of rio Paranapanema and rio Tietê, is the first species of the genus described from upper rio Paraná basin. The new species can be distinguished from other species of Microglanis on morphometric characters, color pattern, caudal-fin shape, pectoral-spine morphology and lateral line development. Characters used specifically to distinguish M. garavelloi from M. cottoides (laguna dos Patos and rio Uruguay basins and M. parahybae (rio Paraíba do Sul basin include morphometrics, color pattern and pectoral-spine serration.

Upper Rio Grande water operations model: A tool for enhanced system management

Science.gov (United States)

Gail Stockton; D. Michael Roark

1999-01-01

The Upper Rio Grande Water Operations Model (URGWOM) under development through a multi-agency effort has demonstrated capability to represent the physical river/reservoir system, to track and account for Rio Grande flows and imported San Juan flows, and to forecast flows at various points in the system. Testing of the Rio Chama portion of the water operations model was...

Inteligência emocional: estudo exploratório

OpenAIRE

Seabra, Diana Catarina Lopes

2013-01-01

A presente dissertação tem como objetivo esclarecer e refletir sobre a inteligência emocional e explorar se existe uma influência entre a atividade que o grupo exerce, o tempo de pertença e o tempo de vida do mesmo, ao nível da inteligência emocional grupal e das suas dimensões. Para tal, foi desenvolvido um estudo exploratório. A recolha dos dados realizou-se através do Questionário de Inteligência Emocional Grupal traduzido e adaptado por Correia (2010) do Group Emotional Intelligence Quest...

Comentários e Notícias

OpenAIRE

BAD, Cadernos

2004-01-01

• Disposições que regulam o exame de admissão ao curso de Bibliotecário-Arquivistas• Júri do exame de aptidão ao Curso de Bibliotecário-Arquivista• Actividade da Comissão Técnica Portuguesa de Normalização (CT-7).• Estágios no CDCU. (1) Regulamento• O complexo problema do livro português. O Instituto Nacional do Livro e da Bibliografia Portuguesa• Criação da «Casa-Biblioteca Tomaz da Fonseca»• Novas bibliotecas municipais em Lisboa• Arquivo Distrital de Aveiro• Fichas de Documentação - um ser...

Ignition probability of fine dead surface fuels in native Patagonia forests of Argentina

Energy Technology Data Exchange (ETDEWEB)

Bianchi, L.; Defosse, G. E.

2014-06-01

Aim of study: The Canadian Forest Fire Weather Index (FWI) is being implemented all over the world. This index is being adapted to the Argentinean ecosystems since the year 2000. With the objective of calibrating the Fine Fuel Moisture Code (FFMC) of the FWI system to Patagonian forests, we studied the relationship between ignition probability and fine dead surface fuel moisture content (MC) as an indicator of potential fire ignition. Area of study: The study area is located in northwestern Patagonia, Argentina, and comprised two main forest types (cypress and nire) grown under a Mediterranean climate, with a dry summer and precipitations during winter and autumn ({approx}500-800 mm per year). Material and methods: We conducted lab ignition tests fires to determine the threshold of fine dead fuel ignition at different MC levels. Moisture content of dead fine surface fuels in the field was measured every 10-15 days from November to March for three seasons. We calculated the FFMC during these seasons and correlated it with the measured MC by applying a logistic regression model. We combined the results of the ignition tests and of the regressions to suggest FFMC categories for estimating fire danger in Patagonian forests. Main results: The ignition threshold occurred at MC values of 21.5 and 25.0% for cypress and nire sites, respectively. The MC measured varied from 7.3 to 129.6%, and the calculated FFMC varied between 13.4 and 92.6. Highly significant regressions resulted when FFMC was related to MC. The ignition threshold corresponded to a FFMC = 85. We proposed to divide the FFMC scale in three fire danger categories: Low (FFMC {<=} 85), High (85 < FFMC{<=}89) and Extreme (FFMC > 89). Research highlights: Our results provide a useful tool for predicting fire danger in these ecosystems, and are a contribution to the development of the Argentinean Fire Danger Rating and a reference for similar studies in other countries where the FWI is being implemented. (Author)

Diagnóstico da floricultura no Rio Grande do Sul Diagnosis of floriculture in Rio Grande do Sul, Brazil

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Atelene Normann Kämpf

1999-09-01

Full Text Available O objetivo deste trabalho foi avaliar o segmento da produção de flores e plantas ornamentais no Rio Grande do Sul, Brasil, por meio de um levantamento a campo. O estudo faz parte de um projeto global, apoiado pelo Instituto Brasileiro de Floricultura (IBRAFLOR e pelo Ministério da Agricultura e do Abastecimento (MAARA, através do Departamento Nacional de Cooperativismo (DENACOOP. Com base nos formulários preenchidos nas propriedades, foi elaborado um cadastro dos floricultores, com seus endereços e produções. A floricultura gaúcha conta com 257 produtores, que cultivam o total de 304ha em 65 municípios; 30% dessa área é ocupada com flores de corte, 33% com mudas para jardim, 29% com outros produtos da floricultura e 8% com plantas envasadas. O sistema de cultivo predominante é a céu aberto (89%, com baixos investimentos tecnológicos.A survey was conducted to quantify flower and ornamental plant production in the State of Rio Grande do Sul State, Brazil. The Brazilian Floriculture Institute (IBRAFLOR and the Agriculture Ministry (MAARA - DENACOOP granted this research. Based on an inventory formulary a catalog including the nurseries, addresses and main crops was elaborated. There are 257 growers in this State with an area of 304ha distributed among 65 counties; 30% of this area are cultivated with cut flowers, 33% with annuals and perennials for garden, 29% with other floriculture products and 8% with potted plants. The main system of cultivation is not protected with low technological investments.

76 FR 6517 - San Luis & Rio Grande Railroad-Petition for a Declaratory Order

Science.gov (United States)

2011-02-04

... DEPARTMENT OF TRANSPORTATION Surface Transportation Board [Docket No. FD 35380] San Luis & Rio... petition filed by San Luis & Rio Grande Railroad (SLRG), the Board instituted a declaratory order... proposed operation of a truck-to-rail transload facility in Antonito, Colorado. See San Luis & Rio Grande R...

Checklist of helminths found in Patagonian wild mammals.

Science.gov (United States)

Fugassa, Martin H

2015-09-03

Using available reports, a checklist of the recorded helminth parasites of wild mammals from Patagonia was generated. Records of parasites found in Patagonia were included, together with records from mammals in áreas outside of Patagonia but whose range extends into Patagonia. Information about the host, localities, and references were also included. A total of 1323 records (224 Cestoda, 167 Trematoda, 894 Nematoda, 34 Acanthocephala, and 4 Pentastomida) belonging to 452 helminth species (77 Cestoda, 76 Trematoda, 277 Nematoda, 21 Acanthocephala, and 1 Pentastomida) found in 57 native mammals (22 Rodentia, 4 Didelphimorphia 1 Microbiotheria, 7 Chiroptera, 5 Cingulata, and 13 Carnivora) were listed. However, only 10.6 % of the reports were conducted on samples from Patagonia and corresponded to 25% of mammals in the region. In addition, many studies were made on a few species and, for example, 52% corresponded to studies made on Lama guanicoe. This suggests the need to increase efforts to know the parasitic fauna in a peculiar region as is the Patagonia. This is the first compilation of the helminth parasites of mammals in Argentine Patagonia and is important for parasitological and paleoparasitological studies.

Electromagnetically Inferred Structure of the Caja del Rio Plateau, New Mexico

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Layton, M. E.; Speed, C.; Shukla, M.; Vila, A.; Chon, E.; Kitamikado, C.; Feucht, D. W.; Bedrosian, P.; Pellerin, L.

2016-12-01

Magnetotelluric (MT) and transient electromagnetic (TEM) data were acquired by students from the Summer of Applied Geophysical Experience (SAGE) to construct structural models in and around the Caja del Rio Plateau, New Mexico. The Caja del Rio is located on the La Bajada-Jemez constriction that separates the Española and Santa Domingo basins in the Rio Grande Rift. The Rio Grande Rift, the result of tectonic extensional forces, extends approximately north-south across northern New Mexico. MT data collected in 2016 were merged with that from previous years to make up an 11 km north line and a 16 km south line extending from the west side of the Caja Del Rio to the east off the plateau in the Old Buckman Road area. The resistivity distributions revealed in one-dimensional (1-D) and two-dimensional (2-D) inverse models show some robust features. Models of the north are interpreted as a top resistive layer (convention) point in the northwest direction towards the conductive Valles Caldera. The MT models are consistent with geologic interpretations of the stratigraphic units. In addition, models disclose an additional conductive layer below the basement that we interpret as the mid-crustal conductor. Transient electromagnetic (TEM) data were collected in seven locations atop the Caja del Rio plateau in an attempt to identify the basal contact of the Cerros del Rio volcanic field, which, in turn, allow for the thickness of these basaltic and andesitic deposits to be mapped across the plateau. One-dimensional inverse models produced from the TEM data were aligned and interpreted geologically. A resistive ( 1000 ohm-m) unit, interpreted to represent the Cerros del Rio volcanics, thickens from 70m to 175m from southeast to northwest. The volcanics are overlain by a thin conductor, interpreted as weathered material. The resistive body is underlain by a thicker conductor, interpreted as sedimentary rocks of the Tertiary-aged Santa Fe Group.

Crescimento pessoal, mediação e sacrifício: itinerários sociais de estudantes beneficiários do Prouni

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Andrea Bayerl Mongim

2015-12-01

Full Text Available Resumo: Este artigo analisa itinerários sociais de estudantes oriundos de famílias consideradas de classes populares e beneficiários do ProUni. Discute o processo de constituição de significados e de incorporação prática de princípios que concorreram para construção e objetivação do projeto de aquisição do título universitário. Tal projeto é construído de forma não naturalizada, efetivando-se pela interação com agentes mediadores, posicionados em quadros institucionais que ultrapassam os limites das redes de relações da família nuclear. A conclusão do curso superior representa a possibilidade de exercer profissão melhor remunerada e valorizada e de incluir-se em grupo de maior prestígio e status.

A satisfação do usuário em hospital universitário User satisfaction at a university hospital

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Antonio C. Lemme

1991-02-01

Full Text Available São apresentados resultados de uma pesquisa exploratória da satisfação/insatisfação de 158 pacientes que recorreram a um Hospital Universitário (HUPE para consulta inicial. As entrevistas foram feitas por alunos do primeiro ano, como parte de projeto de inserção precoce do mesmo com a prática médica, acompanhando pacientes como observadores. Foi utilizado questionário que cobriu os vários aspectos do problema: variáveis sócio-demográficas, arte do cuidado, resolutividade da consulta médica, sugestões de melhoria dos serviços. Tanto alunos/observadores como os usuários conseguiram perceber com precisão os problemas do processo do atendimento (recepção, matrícula, consulta, enfermagem, serviço social, farmácia, exames complementares mas houve divergência de opinião entre vários aspectos da satisfação/insatisfação entre alunos e usuários, provavelmente devido às origens sociais diferentes e expectativas diversas.The results of a research project into the level of satisfaction/dissatisfaction of 158 first-time patients attending by an University hospital, Brazil, are presented. The interviews were carried out by first year medical students as part of a comprehensive project concerned with the restructuring of the Medical Curriculum. Its prime objective was to expose the students to patients/consumers as early as possible in their studies. After an introductory training program, the students asked the patients arriving at the hospital out-patient clinic for permission to observe them throughout the attendance given. A questionnaire was used which covered the various aspects of the consumers relationship with a medical institution (socio-economic variables, "art of care", outcome of the medical encounter and suggestions for improvement. Both patients and students were able to perceive the different problems that patients confront in the course of their dealings with a medical institution (reception, registration

Kelp and dolphin gulls cause perineal wounds in South American fur seal pups (Arctocephalus australis) at Guafo Island, Chilean Patagonia.

Science.gov (United States)

Seguel, Mauricio; Muñoz, Francisco; Montalva, Felipe; Perez-Venegas, Diego; Pavés, Héctor; Gottdenker, Nicole

2017-07-01

During five reproductive seasons, we documented the presence, extent and origin of perineal wounds in South American fur seal pups ( Arctocephalus australis ) on Guafo Island, Northern Chilean Patagonia. The seasonal prevalence of perineal wounds ranged from 5 to 9%, and new cases were more common at the end of the breeding season (February), when pups were on average two months old and were actively expelling hookworms ( Uncinaria sp). Histologically, wounds corresponded to marked ulcerative lymphoplasmacytic and histiocytic dermatitis with granulation tissue and mixed bacterial colonies. In 2015 and 2017, kelp gulls ( Larus dominicanus ) and dolphin gulls ( Leucophaeus scoresbii ) were observed picking and wounding the perineal area of marked pups. This behaviour occurred more frequently after the pups' defecation, when sea gulls engaged in consumption of pups' faeces. The affected pups usually had moderate to marked hookworm infections along with bloody diarrhoea and anaemia. Pups with severe wounds (23% of affected animals) had swollen perineal areas and signs of secondary systemic bacterial infection. We propose that seagulls on Guafo Island have learned to consume remains of blood and parasites in the faeces of pups affected by hookworm infection, causing perineal wounds during this process. We conclude that this perineal wounding is an unintentional, occasional negative effect of an otherwise commensal gull-fur seal relationship.

Metazoários parasitos de seis espécies de peixes do Reservatório de Lajes, Estado do Rio de Janeiro, Brasil Metazoan parasites of six fishes species from Lajes Reservoir in the State of Rio de Janeiro, Brazil

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Aline R. Paraguassú

2007-09-01

Full Text Available Entre abril de 2002 e julho de 2003, foram necropsiados 231 espécimes de peixes: 39 Astyanax bimaculatus (Linnaeus, 1758, 79 A. fasciatus (Cuvier, 1819, 23 Hypostomus affinis (Steindachner, 1877, 26 Hoplias malabaricus (Bloch, 1794, 30 Loricariichthys castaneus (Castelnau, 1855 e 34 Trachelyopterus striatulus (Steindachner, 1876 provenientes do Reservatório de Lajes (22º42' - 22º50'S, 43º53' 44º05'O, Estado do Rio de Janeiro, Brasil, para estudo das suas comunidades parasitárias. A maioria dos espécimes de H. affinis (95,6% e H. malabaricus (84,6% estavam parasitados por pelo menos uma espécie de metazoário. Em A. bimaculatus, A. fasciatus, L. castaneus e T. striatulus 41%, 39,2%, 56,7% e 14,7% dos espécimes estavam parasitados, respectivamente. Foram coletadas oito diferentes espécies de metazoários parasitos: 2 em A. bimaculatus, 3 em A. fasciatus, 3 em H. affinis, 4 em H. malabaricus, 4 em L. castaneus e 1 em T. striatulus. As comunidades de metazoários parasitos das seis espécies de peixes estudadas apresentaram típico padrão de distribuição agregada. Foram observados dois casos de correlação negativa entre a abundância e a prevalência parasitárias e o comprimento total dos hospedeiros. A comunidade parasitária de L. castaneus apresentou os maiores valores de intensidade média, índice de dispersão e diversidade. As comunidades parasitárias dos peixes estudados apresentaram escassez de correlação entre a abundância, riqueza parasitária e diversidade com o comprimento total dos hospedeiros. Os baixos valores de riqueza e diversidade das comuni-dades parasitárias podem ser atribuídos as características oligotróficas do Reservatório de Lajes.From April 2002 to July 2003, 231 freshwater fishes from Lajes Reservoir in the State of Rio de Janeiro, Brazil (22º42' - 22º50'S, 43º53' - 44º05'W were necropsied to study their community metazoan parasites: 39 Astyanax bimaculatus (Linnaeus, 1758, 79 A. fasciatus

SEDIMENTAÇÃO FLUVIAL QUATERNÁRIA NO VALE DO ALTO CURSO DO RIO MACAÉ, ESTADO DO RIO DE JANEIRO, BRASIL.

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Mônica dos Santos Marçal

2015-09-01

Full Text Available O trabalho foi desenvolvido no vale do alto curso do rio Macaé, norte do estado do Rio de Janeiro, e tem como objetivo apresentar as análises geomorfológicas e estratigráficas, além das idades obtidas com o método da luminescência (LOE, realizadas em feições sedimentares de terraços fluviais. Foram selecionadas duas áreas de sedimentação denominadas AS-1, localizada mais a montante do vale, e AS-2 mais a jusante. As feições ocorrem em quatro níveis, sendo três níveis de terraço fluvial, denominados Nível Superior (T1, Nível Intermediário (T2 e Nível Inferior (T3, e um Nível de Planície de Inundação atual (PI. Estão distribuídos de forma descontínua, predominantemente na margem esquerda do rio Macaé, sendo que a planície de inundação (PI ocorre em níveis diferentes em cada margem do vale. Os resultados obtidos das datações por LOE para os sedimentos dos três níveis de terraços (T1, T2 e T3 apresentam boa correspondência às evidências geomorfológicas e estratigráficas utilizadas na definição dos níveis deposicionais aluviais.

Infecções do trato urinário

OpenAIRE

Barros, Susana; Cambão, Marta; Vieira, Sandra; Estevinho, Leticia M.

2005-01-01

O sistema urinário é uma das quatro vias de excreção existentes no corpo humano. A sua exposição a factores exteriores e/ou interiores torna-o sensível a diversas infecções, pelo que, actualmente, em termos de quadro clínico. as patologias relacionadas com as infecções do tracto urinário (ITU), nomeadamente, a uretrite, cistite, síndroma uretral agudo e pielonefrite, são bastantes comuns.

Brazilian Social Psychology in the international context: a commentary A Psicologia Social brasileira no cenário internacional: um comentário

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Joaquim Pires Valentim

2013-03-01

Full Text Available The present paper is a commentary on the talks given by Torres and Álvaro and by Krüger regarding Brazilian Social Psychology in the international context. Starting with a brief contrast with the situation in Portugal, this commentary next approaches, in a synthetic way, questions that cut across social psychology in the international setting, namely, those related with the recurrent dichotomy individual/collective, the great advances in social neuroscience, the study of minorities, the scarcity of psychosocial research about colonialism, and lastly, contemporary issues of science and educational policy.Faz-se aqui um comentário às intervenções de Torres e Álvaro e de Krüger sobre a Psicologia Social brasileira no cenário internacional. Começando por estabelecer um breve contraste com a situação em Portugal, de seguida este comentário aborda, de forma sintética, questões transversais à psicologia social no cenário internacional, designadamente as que se relacionam com a recorrente dicotomia individual/coletivo, os enormes avanços na neurociência social, o estudo das minorias, a escassez de estudos psicossociais sobre o colonialismo e, por último, questões contemporâneas de política científica e de ensino.

A new species of Hemigrammus Gill, 1858 (Characiformes: Characidae from the rio Madeira and rio Paraguai basins, with a redescription of H. lunatus

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Rafaela P. Ota

Full Text Available A new Hemigrammusis described from the rio Paraguai and rio Madeira basins, Mato Grosso and Rondônia States, Brazil. The new species is characterized by possessing a wide dark horizontal stripe across the eye, a vertically elongated humeral blotch, and 4-5 gill-rakers on upper branch and 9-10 on lower. The new species can be easily diagnosed from H. lunatus, the sympatric and morphologically most similar congener, by the shape of humeral blotch and the number of gill rakers. Data of the type material of both Hemigrammus lunatus and H. maxillaris, as well as extensive examination of specimens, allowed us to conclude that H. maxillarisis a junior subjective synonym of H. lunatus. A redescription of H. lunatus, as well as a formal restriction of its type locality, is provided. A putative monophyletic group within Hemigrammus, composed by H. barrigonae, Hemigrammus lunatus, H. machadoi new species, and H. ulreyi, named Hemigrammus lunatus group, is proposed based on overall body morphology and color pattern. Additionally, a discussion on the biogeographical relationships between the rio Paraguai and rio Guaporé basins is provided.

Avaliação do controle externo da qualidade nos laboratórios clínicos do Rio de Janeiro de 2006 a 2008

OpenAIRE

Chaves,Josefa Sieira Caamaño; Marin,Victor Augustus

2010-01-01

INTRODUÇÃO: O Controle Externo da Qualidade (CEQ) é uma ferramenta importante para a garantia da qualidade das análises laboratoriais, auxiliando o laboratório a avaliar a eficiência da fase analítica de seus processos. Um resultado errôneo de uma análise prejudica a conclusão do diagnóstico de uma enfermidade e a indicação correta do tratamento a ser tomado. As inspeções sanitárias em laboratórios clínicos (LCs) no estado do Rio de Janeiro são feitas com base no roteiro de inspeção sanitária...

Controlo dos acessórios de elevação

OpenAIRE

Costa, Ana Luisa Nogueira da

2016-01-01

Relatório de Estágio apresentado para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Segurança e Higiene no Trabalho O relatório é o trabalho final da 8ª Edição do Mestrado de Segurança e Higiene no Trabalho, da Escola Superior de Ciências Empresariais em parceria com a Escola Superior de Tecnologia de Setúbal, do Instituto Politécnico de Setúbal. O estágio desenrolou-se nas instalações da empresa LUSOSIDER, sob a orientação da Técnica Superior em SHST Eng....

Plants, arthropods, and birds of the Rio Grande [chapter 7

Science.gov (United States)

Deborah M. Finch; Gale L. Wolters; Wang Yong; Mary Jean Mund

1995-01-01

Human populations have increased dramatically along the Rio Grande since European settlement. Human use of water for irrigation and consumption, and human use of land for agriculture, urban centers, livestock grazing, and recreation have changed Rio Grande ecosystems by altering flood cycles, channel geomorphology, upslope processes, and water quality and quantity....

Breves comentários sobre as teorias marxistas de imigração

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Raul Felix Barbosa

2017-10-01

Full Text Available Sabe-se que o capitalismo possui sua parcela de responsabilidade nos movimentos migratórios, voluntários ou forçados, do período pós-revolução industrial. Apesar de Karl Marx não ter abordado diretamente a questão migratório, a teoria marxista e neomarxista se ocupa de explicar os processos migratórios. Esse artigo realiza um levantamento das teorias migratórias de origem marxista apresentando-as, bem como as críticas recebidas.

Crianças em situação de violência de um ambulatório do Rio de Janeiro: conhecendo seu perfil Niños en situación de violencia de un ambulatorio en Rio de Janeiro: conociendo su perfil Children under violence situation followed-up in the outpatient setting at Rio de Janeiro: knowing their profile

OpenAIRE

Lucia Martins de Magalhães Pierantoni; Ivone Evangelista Cabral

2009-01-01

Buscou-se caracterizar as crianças envolvidas em situação de violência e seus familiares, e analisar o papel social do agressor/protetor no círculo da violência. Estudo quantitativo descritivo foi desenvolvido no Ambulatório da Família de um Hospital do Rio de Janeiro, entre 2006 e 2007. Dados do prontuário de 44 crianças demonstraram intensa relação entre pobreza, baixa escolaridade e gênero na matriz social da violência. Houve maior registro de meninos (64%) expostos a violência do que meni...

Saúde reprodutiva e mulheres indígenas do Alto Rio Negro

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Marta Azevedo

Full Text Available O presente artigo descreve e analisa as concepções próprias das mulheres indígenas do Alto Rio Negro sobre saúde reprodutiva, relacionando-as a indicadores de fecundidade. As informações qualitativas apontam para um conhecimento detalhado e complexo que as mulheres indígenas dessa região possuem sobre seu corpo e os cuidados com sua saúde. Os níveis e padrões etários da fecundidade estão relacionados com a etnia das mulheres, portanto, aos sistemas tradicionais de cuidados com a saúde desses povos. A pesquisa foi desenvolvida entre 1997 e 2003, na região de Iauaretê, Terra Indígena Alto Rio Negro (AM, e teve como primeira fonte de dados o Censo Indígena Autônomo do Rio Negro - CIARN-, levado a efeito pela Federação das Organizações Indígenas do Rio Negro - FOIRN - em 1992.

Discursos Ambientales y Procesos de Fronterización en Patagonia-Aysén (Chile: de los paisajes de la mala hierba a los del bosque sagrado

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Andrés Núñez González

2017-04-01

Full Text Available El texto propone compreder la frontera como el resultado de un proceso de producción social del espacio. En este contexto, el artículo plantea que el territorio de Patagonia-Aysén no es naturalmente fronterizo o marginal sino que aquella condición es el resultado de una producción histórico-geográfica que la fue constituyendo en una espacialidad periférica y que surge en relación al imaginario geográfico producido por y desde la nación. Desde este punto de vista, la agencia estatal desarrolla, mantiene y actualiza vías y estrategias a través de las cuales pueda sostener aquella interpretación fronteriza como justificación para afianzar la ilusión de un espacio homogéneo y común. Analizamos acá dos estrategias: la producción del paisaje ganadero y la del paisaje “verde”.

Plantas medicinais em quintais urbanos de Rio Branco, Acre Medicinal plants in urban backyards in Rio Branco, Acre

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A. Siviero

2012-01-01

Full Text Available Este trabalho teve como objetivo realizar levantamento das espécies vegetais de uso medicinal cultivadas em quintais urbanos da cidade de Rio Branco. Foram realizadas entrevistas presenciais com aplicação de questionário especifico registrando as espécies vegetais de uso medicinal e dados sócio-econômicos dos moradores em 132 quintais urbanos de Rio Branco entre 2009 e 2010. Os bairros selecionados para o estudo foram: Aeroporto Velho, Placas, e Novo Horizonte, todos situados na periferia do município. Foram detectadas 83 espécies vegetais de uso medicinal pertencente a 50 famílias botânicas com destaque para Lamiaceae (12,0% e Asteraceae (6,0%, sendo 66,2% exóticas, e 28,9% e 16,8%, associadas ao uso alimentar e ornamental, respectivamente. A decocção das folhas visando à obtenção do chá foi o principal modo de preparo das plantas. A análise de regressão logística entre a riqueza de espécies e diversos fatores socioeconômicos dos entrevistados mostrou que a probabilidade de ocorrência de espécies é três vezes maior em quintais manejados por moradores com idade superior a 50 anos de idade. A análise de correlação não paramétrica de fatores quantitativos mostrou que a variável tempo de moradia está mais correlacionada com a riqueza de plantas medicinais do que a variável idade. O cultivo das plantas medicinais em quintais urbanos de Rio Branco auxilia no combate a doenças e promove a conservação ex situ da agrobiodiversidade agroflorestal, bem estar aos moradores pela melhoria da paisagem, ambiência microclimática e espaço de lazer.This study aimed to survey the medicinal plant species grown in urban backyards in the city of Rio Branco. Personal interviews were conducted by applying a specific questionnaire recording the plant species of medicinal use and the socioeconomic data of residents in 132 urban backyards in Rio Branco between 2009 and 2010. The districts selected for the study were "Aeroporto

Monitorização da ponte sobre o rio Kwanza na Cabala

OpenAIRE

Oliveira Santos, L.; Santos, J.; Xu, Min

2011-01-01

A presente comunicação visa divulgar os trabalhos de monitorização da nova ponte sobre o rio Kwanza, na localidade da Cabala, levados a cabo pelo Laboratório Nacional de Engenharia Civil e pelo Laboratório de Engenharia de Angola. Para além da apresentação do plano geral de observação e da descrição dos ensaios estáticos e dinâmicos realizados no final da construção, é dada uma ênfase particular a aspectos inovadores, como a monitorização do nível do rio e da evolução morfol...

Forest Typification to Characterize the Structure and Composition of Old-growth Evergreen Forests on Chiloe Island, North Patagonia (Chile

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Jan R. Bannister

2013-11-01

Full Text Available The Evergreen forest type develops along the Valdivian and North-Patagonian phytogeographical regions of the south-central part of Chile (38° S–46° S. These evergreen forests have been scarcely studied south of 43° S, where there is still a large area made up of old-growth forests. Silvicultural proposals for the Evergreen forest type have been based on northern Evergreen forests, so that the characterization of the structure and composition of southern Evergreen forests, e.g., their typification, would aid in the development of appropriate silvicultural proposals for these forests. Based on the tree composition of 46 sampled plots in old-growth forests in an area of >1000 ha in southern Chiloé Island (43° S, we used multivariate analyses to define forest groups and to compare these forests with other evergreen forests throughout the Archipelago of North-Patagonia. We determined that evergreen forests of southern Chiloé correspond to the North-Patagonian temperate rainforests that are characterized by few tree species of different shade tolerance growing on fragile soils. We discuss the convenience of developing continuous cover forest management for these forests, rather than selective cuts or even-aged management that is proposed in the current legislation. This study is a contribution to forest classification for both ecologically- and forestry-oriented purposes.

ESD and the Rio Conventions

Science.gov (United States)

Sarabhai, Kartikeya V.; Ravindranath, Shailaja; Schwarz, Rixa; Vyas, Purvi

2012-01-01

Chapter 36 of Agenda 21, a key document of the 1992 Earth Summit, emphasised reorienting education towards sustainable development. While two of the Rio conventions, the Convention on Biological Diversity (CBD) and the United Nations Framework Convention on Climate Change (UNFCCC), developed communication, education and public awareness (CEPA)…

Leishmaniose tegumentar americana: casuística hospitalar no Rio de Janeiro American tegumentary Leishmaniasis: hospitalized cases in Rio de Janeiro

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Nurimar C. Fernandes

2004-08-01

Full Text Available FUNDAMENTOS: A leishmaniose tegumentar americana distribui-se amplamente no Brasil, e o Estado do Rio de Janeiro (capital e interior constitui área endêmica onde o vetor é encontrado dentro e ao redor das habitações. OBJETIVOS: Análise prospectiva de 48 casos de leishmaniose tegumentar americana atendidos no Hospital Universitário Clementino Fraga Filho/UFRJ, no período de 1990 a 2002. MÉTODOS: Todos os pacientes foram submetidos à biópsia de pele ou mucosa, teste de Montenegro e exame otorrinolaringológico; SbV (10 a 20mg/kg, no total de 10, 30 e 90 doses. foi empregado em 44 pacientes; em quatro casos, anfotericina B (0,5mg/kg/dose até dose cumulativa de 30mg/kg. RESULTADOS: 28 homens e 20 mulheres na faixa etária de 10 a 89 anos, dos quais 38 (79,1% infectados no Rio de Janeiro, apresentaram úlcera de membro inferior e comprometimento de mucosa nasal como manifestações mais freqüentes; 41 casos (85,4% foram reatores à intradermorreação de Montenegro (5mm; 17 casos (35,4% foram positivos para o achado de amastigotas em macrófagos no infiltrado inflamatório dérmico; predominou o processo inflamatório crônico granulomatoso; cura clínica foi observada em 47 casos; um caso evoluiu para óbito no décimo dia de tratamento. CONCLUSÕES: O estudo da leishmaniose tegumentar (HUCFF/UFRJ no período 1990/2002 evidenciou padrão conhecido nos aspectos epidemiológicos, clínicos e de resposta terapêutica ao antimonial (SbV e anfotericina B.BACKGROUND: American tegumentary Leishmaniasis is widely found in Brazil; the state of Rio de Janeiro (capital and hinterland is an endemic area where the vector is found inside and outside houses. OBJECTIVES: prospective study of 48 cases attended at the Teaching Hospital Clementino Fraga Filho - UFRJ, between 1990 - 2002. METHODS: All patients were submitted to skin or mucosa biopsy, Montenegro skin test and otorhinolaryngologic examination; SbV (10 - 20 mg/kg with 10, 30 and 90 doses was

Fisioterapia respiratória no pré-operatório de colecistectomia

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Lucas Lima Ferreira

2013-05-01

Full Text Available Introdução: As cirurgias abdominais altas causam alterações da função pulmonar caracterizadas por redução da capacidade vital, relacionada à presença de hipoxemia e atelectasia, e pela  redução do volume expiratório forçado no primeiro segundo. Relato do caso: Paciente do sexo feminino, 29 anos, diagnóstico médico de cálculos biliares e hérnia hiatal, diagnóstico funcional de baixo desempenho cardiorrespiratório, a três meses de préoperatório de colecistectomia. Foi realizada avaliação composta por dados antropométricos, espirometria, teste de caminhada de seis minutos (TC6, mensuração das pressões respiratórias pIntrodução: As cirurgias abdominais altas causam alterações da função pulmonar caracterizadas por redução da capacidade vital, relacionada à presença de hipoxemia e atelectasia, e pela redução do volume expiratório forçado no primeiro segundo. Relato do caso: Paciente do sexo feminino, 29 anos, diagnóstico médico de cálculos biliares e hérnia hiatal, diagnóstico funcional de baixo desempenho cardiorrespiratório, a três meses de préoperatório de colecistectomia. Foi realizada avaliação composta por dados antropométricos, espirometria, teste de caminhada de seis minutos (TC6, mensuração das pressões respiratórias por meio da manovacuometria e do nível de qualidade de vida mediante o questionário SF-36. A seguir foi aplicado um protocolo de fisioterapia respiratória e reavaliação após o tratamento. Na avaliação inicial foi verificado que a paciente encontravase com sobrepeso (IMC=27,40 kg/m2, baixo desempenho cardiorrespiratório e fraqueza da musculatura respiratória. Conclusão: O protocolo aplicado mostrou-se eficaz, pois auxiliou na redução de peso corporal e melhorou o desempenho cardiorrespiratório por meio dos exercícios aeróbicos, e proporcionou ganho de força aos músculos respiratórios.

Multidisciplinary response for a radiological accident developed in Argentina

International Nuclear Information System (INIS)

Di Giorgio, Marina; Tadic, Matilde; Vazquez, Marina; Cateriano, Miguel; Jordan, Osvaldo; Rojas, Carlos A.; Portas, M.; Coppola, A.; De Lellis, M. del C.; Dovasio, F.

2010-01-01

In January 2009 during an oil well logging task in Rincon de los Sauces, Province of Neuquen, Argentina, and, as a result of the temporary loss of control of a 137 Cs sealed source of 92,5 GBq (2,5 Ci), two workers were allegedly exposed to ionizing radiation. The Health Emergency Coordination System in Neuquen activated the Radiological Emergency Intervention System of the Nuclear Regulatory Authority (NRA). An initial assessment of the accident scenario and the involved persons was performed. Two workers were were transfer to Buenos Aires for a biodosimetry evaluation. In Buenos Aires, the Burn Hospital performed the first diagnostic and therapeutic approach of the radioinduced skin injuries. The NRA estimated the biological absorbed doses and the studies of telethermography. The Italian Hospital was in charge of the studies using ultrasonography and Eco- Doppler. As a result of the multidisciplinary evaluation performed, one of the workers was diagnosed with superficial radioinduced dermatitis. The mentioned intervention highlighted the importance of multidisciplinary and multiparametric work for the evaluation of a radiological accident, as well as for the diagnosis and early treatment of the exposed persons. (authors) [es

The early Miocene balaenid Morenocetus parvus from Patagonia (Argentina and the evolution of right whales

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Mónica R. Buono

2017-12-01

Full Text Available Balaenidae (right and bowhead whales are a key group in understanding baleen whale evolution, because they are the oldest surviving lineage of crown Mysticeti, with a fossil record that dates back ∼20 million years. However, this record is mostly Pliocene and younger, with most of the Miocene history of the clade remaining practically unknown. The earliest recognized balaenid is the early Miocene Morenocetus parvus Cabrera, 1926 from Argentina. M. parvus was originally briefly described from two incomplete crania, a mandible and some cervical vertebrae collected from the lower Miocene Gaiman Formation of Patagonia. Since then it has not been revised, thus remaining a frequently cited yet enigmatic fossil cetacean with great potential for shedding light on the early history of crown Mysticeti. Here we provide a detailed morphological description of this taxon and revisit its phylogenetic position. The phylogenetic analysis recovered the middle Miocene Peripolocetus as the earliest diverging balaenid, and Morenocetus as the sister taxon of all other balaenids. The analysis of cranial and periotic morphology of Morenocetus suggest that some of the specialized morphological traits of modern balaenids were acquired by the early Miocene and have remained essentially unchanged up to the present. Throughout balaenid evolution, morphological changes in skull arching and ventral displacement of the orbits appear to be coupled and functionally linked to mitigating a reduction of the field of vision. The body length of Morenocetus and other extinct balaenids was estimated and the evolution of body size in Balaenidae was reconstructed. Optimization of body length on our phylogeny of Balaenidae suggests that the primitive condition was a relatively small body length represented by Morenocetus, and that gigantism has been acquired independently at least twice (in Balaena mysticetus and Eubalaena spp., with the earliest occurrence of this trait in the late

The early Miocene balaenid Morenocetus parvus from Patagonia (Argentina) and the evolution of right whales

Science.gov (United States)

Cozzuol, Mario A.; Fitzgerald, Erich M.G.

2017-01-01

Balaenidae (right and bowhead whales) are a key group in understanding baleen whale evolution, because they are the oldest surviving lineage of crown Mysticeti, with a fossil record that dates back ∼20 million years. However, this record is mostly Pliocene and younger, with most of the Miocene history of the clade remaining practically unknown. The earliest recognized balaenid is the early Miocene Morenocetus parvus Cabrera, 1926 from Argentina. M. parvus was originally briefly described from two incomplete crania, a mandible and some cervical vertebrae collected from the lower Miocene Gaiman Formation of Patagonia. Since then it has not been revised, thus remaining a frequently cited yet enigmatic fossil cetacean with great potential for shedding light on the early history of crown Mysticeti. Here we provide a detailed morphological description of this taxon and revisit its phylogenetic position. The phylogenetic analysis recovered the middle Miocene Peripolocetus as the earliest diverging balaenid, and Morenocetus as the sister taxon of all other balaenids. The analysis of cranial and periotic morphology of Morenocetus suggest that some of the specialized morphological traits of modern balaenids were acquired by the early Miocene and have remained essentially unchanged up to the present. Throughout balaenid evolution, morphological changes in skull arching and ventral displacement of the orbits appear to be coupled and functionally linked to mitigating a reduction of the field of vision. The body length of Morenocetus and other extinct balaenids was estimated and the evolution of body size in Balaenidae was reconstructed. Optimization of body length on our phylogeny of Balaenidae suggests that the primitive condition was a relatively small body length represented by Morenocetus, and that gigantism has been acquired independently at least twice (in Balaena mysticetus and Eubalaena spp.), with the earliest occurrence of this trait in the late Miocene�

Tipos do Herbário Prisco Bezerra - EAC

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Maria Stela Bezerra da Silva

1990-01-01

Full Text Available Com o presente trabalho pretende-se contribuir para a divulgação dos tipos do Herbário Prisco Bezerra - EAC. Um levantamento realizado no acervo do Herbário revelou o registro de dez tipos. Sete deles pertencentes à família Leguminosae distribuídas entre as subfamilias Caesalpinioideae: Peltogyne crenulata, Sentia dardanoi, Moldenhawera acuminata, Chamaecrista duckeana, Papilionoideae: Aeschynomene monteiroi, Cranocarpus gracilis e Mimosoideae: Mimosa niomarlei; dois, pertencentes à família Erythroxylaceae. As espécies Erythroxylum tianguanum e Erythroxylum bezerrae e um à família Euphorbiaceae: Dalechampia fernandesii recentemente descrita por G. Webster. Os tipos são apresentados na seqüência das indicações: nome das famílias, seguido do epíteto específico, habitat, com a transferência de todas as informações mencionadas na ficha de exsicata do material, bem como, a fotografia correspondente. Citam-se também alguns aspectos característicos das espécies, para melhor visualização dos detalhes fotográficos.The present paper repasts the type specimens in the Herbário Prisco Bezerra (University of Ceará. The Herbário has ten type, of which seven are Leguminosae: Peltoqyne crenulata, Senna dardanoi, Moldenhawera acuminata Chamaecrista duckeana, Aeschynomene monteiroi, Cranocarpus gracilis, Mimosa niomarlei, two the Erythroxylaceae: Erythroxylum tianquanum and Erythroxylum bezerrae and one Euphorbiaceae: Dalechampia fernandesii. Additional informations for these exsicata is presented.

Agentes Comunitários de Saúde: agenciadores de encontros entre territórios Community Health Workers: promoters of interaction between territories

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Samira Lima da Costa

2012-11-01

Full Text Available O artigo apresenta reflexões produzidas a partir de uma série de encontros com Agentes Comunitários de Saúde, ao longo de dez anos. Identifica-se a consolidação de dois territórios existenciais, que ora se aproximam, ora se afastam: o do saber técnico em saúde e o do saber popular em saúde. A partir da análise de algumas falas de ACS e de reflexões que dialogam com o referencial teórico da área, o texto discute alguns dos dilemas e impasses do acesso e da adesão na ótica desses Agentes, bem como as estratégias cotidianamente inventadas a partir dos encontros que se dão entre esses dois territórios. Identifica-se o lugar do Agente Comunitário de Saúde como agenciador de fronteiras, atuando em alguns momentos como um inventor ou potencializador de zonas de contato entre territórios e, em outros, como um representante de um dos territórios no outro.This article presents reflections originating from a series of meetings with community health workers over a period of ten years. It identifies the consolidation of two existential territories, which are sometimes closer and at other times more distant from each other, namely the territory of technical knowledge about health and the territory of popular knowledge about health. Starting with the analysis of some quotes from health workers and reflections which tally with the theoretical reference in the area, this paper discusses some of the dilemmas and deadlocks of access and affiliation from the perspective of some of these health workers, as well as the strategies devised on a day-to-day basis from the crossovers that take place between these two territories. It identifies the function of community health workers as frontier agents, at times acting as inventors or motivators of contact zones between the territories, and at other times acting as a representative by one territory inside the other.

Impacto do uso de microrganismos em caixas sifonadas de ambientes sanitários

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Verena Soares Fernandes

Full Text Available Resumo A preocupação com a qualidade de operação dos sistemas prediais de esgoto sanitário tem motivado empresas especializadas em biotecnologia a investir em produtos compostos por misturas de microrganismos vivos que atuam no pré-tratamento de efluentes de sistemas prediais para combater odores desagradáveis em ambientes sanitários. O objetivo deste artigo é avaliar o uso de misturas concentradas de microrganismos em caixas sifonadas para eliminar o mau cheiro em ambientes sanitários e o impacto em estações de tratamento de esgotos sanitários. O método consiste em diagnosticar o mau cheiro de um dos sanitários de um edifício escolar de nível superior, que é alvo de constantes reclamações por parte dos usuários. Em seguida, introduzir tabletes de microrganismos nas caixas sifonadas e, por fim, avaliar o impacto do uso desse produto em dois sanitários e em estações de tratamento de esgoto por meio de análises de demanda bioquímica de oxigênio e de testes de respirometria. Os resultados indicam que nestes ambientes sanitários o mau cheiro não foi reduzido com o emprego de tabletes de microrganismos e em Estações de Tratamento de Esgoto, na concentração indicada pelo fabricante, o produto não produziu alterações significativas nas características analisadas do esgoto.

EKA urbanistika osakond / Lilia del Rio

Index Scriptorium Estoniae

Rio, Lilia del

2006-01-01

Lilia del Rio magistritöö "Beyond the player's manual / Mänguõpetus edasijõudnutele. Experiencing the world (and the city) as a playground / Kogedes maailma (ja linna) mänguväljakuna". Juhendaja Andres Kurg

A fragilidade do Ministério da Defesa brasileiro

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Jorge Zaverucha

2005-11-01

Full Text Available O presente artigo apresenta os diversos momentos por que passou o Ministério da Defesa, desde sua criação no segundo mandato presidencial de Fernando Henrique Cardoso (1999-2002 até o atual governo de Luís Inácio Lula da Silva (2003-2006, com os respectivos ministros da Defesa. Visto como uma etapa importante na reconstitucionalização do país, na medida em que prevê a submissão dos comandantes das Forças Armadas a um ministro civil, e embora alguns analistas considerem que essa submissão de fato ocorre, procuramos indicar as resistências e as insubordinações militares ao poder civil, provenientes de um legado autoritário. Na medida em que o Ministério da Defesa não consegue implementar uma política própria, em que os militares seguiriam as orientações dos civis, o artigo conclui considerando a fragilidade política e institucional do Ministro da Defesa, civil, ante o os comandos militares, que conservam alto grau de autonomia decisória em relação à estrutura do Ministério.

Produtos e serviços bancários

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Álvaro Modernell

2009-01-01

Guia com informações sobre produtos e serviços bancários que estão à disposição dos cidadãos brasileiros com a finalidade de facilitar o seu dia-a-dia. O documento é uma cartilha educativa preparada para clientes da CAIXA, uma instituição pública de poupança e crédito. O guia foi produzido como parte do "Programa de Remessas e Capacitação para Emigrantes Brasileiros e seus Beneficiários no Brasil".

The Transport of Gmelina Logs on the Rio Dulce

Energy Technology Data Exchange (ETDEWEB)

Ensminger, J.T.; Martines, R.; Perlack, B.; Ranney, J.

1997-02-01

The Rio Dulce National Park is one of Guatemala's major environmental assets. The park contains the remaining remnants of an eastern Guatemalan tropical rainforest which has good but fast deteriorating value for the development of the ecotourism industry. The governmenial objective for the region as stated in the Master Plan for the park is ecotourism development and protection of biodiversity. The decisions to be made concerning the long-term, sustainable use of the natural resources of the Rio Dulce region appear to be directed by existing environmental laws and the Rio Dulce Master Plan. However, the wording of these instruments is ambiguous and lacks specific definitions and criteria for making necessary determinations. This, in combination with lack of enforcement in the region, has led to extensive disparity in interpretation of the laws and uncontrolled, conflicting actions by individuals and organizations.

Validating numerical simulations of snow avalanches using dendrochronology: the Cerro Ventana event in Northern Patagonia, Argentina

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A. Casteller

2008-05-01

Full Text Available The damage caused by snow avalanches to property and human lives is underestimated in many regions around the world, especially where this natural hazard remains poorly documented. One such region is the Argentinean Andes, where numerous settlements are threatened almost every winter by large snow avalanches. On 1 September 2002, the largest tragedy in the history of Argentinean mountaineering took place at Cerro Ventana, Northern Patagonia: nine persons were killed and seven others injured by a snow avalanche. In this paper, we combine both numerical modeling and dendrochronological investigations to reconstruct this event. Using information released by local governmental authorities and compiled in the field, the avalanche event was numerically simulated using the avalanche dynamics programs AVAL-1D and RAMMS. Avalanche characteristics, such as extent and date were determined using dendrochronological techniques. Model simulation results were compared with documentary and tree-ring evidences for the 2002 event. Our results show a good agreement between the simulated projection of the avalanche and its reconstructed extent using tree-ring records. Differences between the observed and the simulated avalanche, principally related to the snow height deposition in the run-out zone, are mostly attributed to the low resolution of the digital elevation model used to represent the valley topography. The main contributions of this study are (1 to provide the first calibration of numerical avalanche models for the Patagonian Andes and (2 to highlight the potential of Nothofagus pumilio tree-ring records to reconstruct past snow-avalanche events in time and space. Future research should focus on testing this combined approach in other forested regions of the Andes.

Ceratopetalum (Cunoniaceae) fruits of Australasian affinity from the early Eocene Laguna del Hunco flora, Patagonia, Argentina.

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Gandolfo, María A; Hermsen, Elizabeth J

2017-03-01

Radially symmetrical, five-winged fossil fruits from the highly diverse early Eocene Laguna del Hunco flora of Chubut Province, Patagonia, Argentina, are named, described and illustrated. The main goals are to assess the affinities of the fossils and to place them in an evolutionary, palaeoecological and biogeographic context. Specimens of fossil fruits were collected from the Tufolitas Laguna del Hunco. They were prepared, photographed and compared with similar extant and fossil fruits using published literature. Their structure was also evaluated by comparing them with that of modern Ceratopetalum (Cunoniaceae) fruits through examination of herbarium specimens. The Laguna del Hunco fossil fruits share the diagnostic features that characterize modern and fossil Ceratopetalum (symmetry, number of fruit wings, presence of a conspicuous floral nectary and overall venation pattern). The pattern of the minor wing (sepal) veins observed in the Patagonian fossil fruits is different from that of modern and previously described fossil Ceratopetalum fruits; therefore, a new fossil species is recognized. An apomorphy (absence of petals) suggests that the fossils belong within crown-group Ceratopetalum . The Patagonian fossil fruits are the oldest known record for Ceratopetalum . Because the affinities, provenance and age of the fossils are so well established, this new Ceratopetalum fossil species is an excellent candidate for use as a calibration point in divergence dating studies of the family Cunoniaceae. It represents the only record of Ceratopetalum outside Australasia, and further corroborates the biogeographic connection between the Laguna del Hunco flora and ancient and modern floras of the Australasian region. © The Author 2017. Published by Oxford University Press on behalf of the Annals of Botany Company.

Avaliação do controle externo da qualidade nos laboratórios clínicos do Rio de Janeiro de 2006 a 2008 Evaluation of external quality assessment in clinical laboratories from Rio de Janeiro in the years 2006-2008

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Josefa Sieira Caamaño Chaves

2010-10-01

Full Text Available INTRODUÇÃO: O Controle Externo da Qualidade (CEQ é uma ferramenta importante para a garantia da qualidade das análises laboratoriais, auxiliando o laboratório a avaliar a eficiência da fase analítica de seus processos. Um resultado errôneo de uma análise prejudica a conclusão do diagnóstico de uma enfermidade e a indicação correta do tratamento a ser tomado. As inspeções sanitárias em laboratórios clínicos (LCs no estado do Rio de Janeiro são feitas com base no roteiro de inspeção sanitária publicado pela Portaria SES/CVS 743, de junho de 2006, na RDC 302/2005 e legislação vigente. Os resultados observados quanto ao CEQ, do total de 347 inspeções realizadas pelo Setor de Laboratórios de Análises Clínicas da Secretaria de Saúde e Defesa Civil (LAC-SESDEC no decorrer dos anos pesquisados, são apresentados a seguir: em 2006, entre as 133 inspeções realizadas em Laboratórios de Análises Clínicas, 44% dos estabelecimentos não possuíam contrato com provedor de ensaios de proficiência (EPs; em 2007, entre as 95 inspeções realizadas em Laboratórios de Análises Clínicas, 38% não possuíam contrato com provedor de EPs; em 2008, entre as 119 inspeções realizadas em Laboratórios de Análises Clínicas, 35% não possuíam contrato com provedor de EPs. Dos 214 laboratórios clínicos inspecionados nos anos de 2007 e 2008, 62% (134 estabelecimentos possuíam CEQ, entretanto, desses 134 estabelecimentos, 65% não registravam as ações corretivas relacionadas com as não conformidades detectadas em relatório emitido pelo provedor de EPs. MÉTODO: No presente estudo, foi avaliada a distribuição percentual dos resultados das inspeções sanitárias realizadas em LCs no estado do Rio de Janeiro de 2006 a 2008, cadastrados na Secretaria Estadual de Saúde e Defesa Civil (SESDEC, relacionando o número de LCs que não atendem às exigências sanitárias, item: "Controle Externo da Qualidade - CEQ da Portaria 743

Exploring the diversity and antimicrobial potential of marine Actinobacteria from the Comau Fjord in Northern Patagonia, Chile

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Agustina Undabarrena

2016-07-01

Full Text Available Bioprospecting natural products in marine bacteria from fjord environments are attractive due to their unique geographical features. Although Actinobacteria are well known for producing a myriad of bioactive compounds, investigations regarding fjord-derived marine Actinobacteria are scarce. In this study, the diversity and biotechnological potential of Actinobacteria isolated from marine sediments within the Comau fjord, in Northern Chilean Patagonia, were assessed by culture-based approaches. The 16S rRNA gene sequences revealed that members phylogenetically related to the Micrococcaceae, Dermabacteraceae, Brevibacteriaceae, Corynebacteriaceae, Microbacteriaceae, Dietziaceae, Nocardiaceae and Streptomycetaceae families were present at the Comau fjord. A high diversity of cultivable Actinobacteria (10 genera was retrieved by using only five different isolation media. Four isolates belonging to Arthrobacter, Brevibacterium, Corynebacterium and Kocuria genera showed 16S rRNA gene identity <98.7% suggesting that they are novel species. Physiological features such as salt tolerance, artificial sea water requirement, growth temperature, pigmentation and antimicrobial activity were evaluated. Arthrobacter, Brachybacterium, Curtobacterium, Rhodococcus and Streptomyces isolates showed strong inhibition against both Gram-negative Pseudomonas aeruginosa, Escherichia coli and Salmonella enterica and Gram-positive Staphylococcus aureus, Listeria monocytogenes. Antimicrobial activities in Brachybacterium, Curtobacterium and Rhodococcus have been scarcely reported, suggesting that non-mycelial strains are a suitable source of bioactive compounds. In addition, all strains bear at least one of the biosynthetic genes coding for NRPS (91%, PKS I (18% and PKS II (73%.Our results indicate that the Comau fjord is a promising source of novel Actinobacteria with biotechnological potential for producing biologically active compounds.

Ajustamento EstratÃgico do Setor BancÃrio ao Plano Real

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Maria Elisangela Rodrigues dos Santos

2004-01-01

Este estudo evendicia as transformaÃÃes ocorridas no setor bancÃrio apÃs o Plano Real, originado em 01 de Julho de 1994. Essas transformaÃÃes proporcionaram impactos no sistema bancÃrio, dando inÃcio a um amplo processo de reforma estrutural ocasionado por modificaÃÃes de aÃÃes exÃgenas macroeconÃmicas. Com inÃcio do Plano, sabia-se que o novo ambiente de estabilizaÃÃo econÃmico do paÃs nÃo seria condizente com a dimensÃo que o sistema bancÃrio havia alcanÃado, fruto de vÃrios anos de inflaÃÃ...

Exploratory Practice: Work at the Cultural Inglesa, Rio de Janeiro, Brazil.

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Allwright, Dick; Lenzuen, Rosa

1997-01-01

Focuses on the aim of the Cultural Inglesa, Rio de Janeiro, Brazil, which is the development of a new, fully sustainable concept for classroom-based research--exploratory practice--and its assimilation into the normal working and professional-development practices of Rio Cultura teachers. (Author/VWL)

Heating effects in Rio Blanco rock

International Nuclear Information System (INIS)

Taylor, R.W.; Bowen, D.W.; Rossler, P.E.

1975-01-01

Samples of ''sandstone'' from near the site of the upper Rio Blanco nuclear explosion were heated in the laboratory at temperatures between 600 and 900 0 C. The composition and amount of noncondensable (dry) gas released were measured and compared to the amount and composition of gas found underground following the explosion. The gas released from the rock heated in the laboratory contained approximately 80 percent CO 2 and 10 percent H 2 ; the balance was CO and CH 4 . With increasing temperature, the amounts of CO 2 , CO, and H 2 released increased. The composition of gas released by heating Rio Blanco rock in the laboratory is similar to the composition of gas found after the nuclear explosion except that it contains less natural gas (CH 4 , C 2 H 6 . . .). The amount of noncondensable gas released by heating the rock increases from approximately 0.1 mole/kg of rock at 600 0 C to 0.9 mole/kg at 900 0 C. Over 90 percent of the volatile components of the rock are released in less than 10 h at 900 0 C. A comparison of the amount of gas released by heating rock in the laboratory to the amount of gas released by the heat of the Rio Blanco nuclear explosion suggests that the explosion released the volatile material from about 0.42 mg of rock per joule of explosive energy (1700 to 1800 tonnes per kt). (auth)

Patrones de distribución espacial y temporal de floraciones de Alexandrium catenella (Whedon & Kofoid Balech 1985, en aguas interiores de la Patagonia noroccidental de Chile Spatial and temporal distribution patterns of blooms of Alexandrium catenella (Whedon & Kofoid Balech 1985, on inland seas of northwest Patagonia, Chile

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CARLOS MOLINET

2003-12-01

Full Text Available La presencia del dinoflagelado tóxico Alexandrium catenella en las aguas interiores de la Patagonia noroccidental, fue registrada en la década de los 90. A partir de 1995 se iniciaron programas de monitoreo de fitoplancton orientados al seguimiento de este dinoflagelado y sus efectos sobre los mariscos en la Décima y Undécima Región de Chile, financiados por distintas instituciones. Esto permitió recolectar una importante base de datos, aunque incompleta en muchos aspectos debido a la independencia de objetivos de los diferentes estudios. En esta revisión se agruparon todos los datos disponibles para buscar patrones que ayuden a la formulación de hipótesis sobre la dispersión e incidencia espacial y temporal de A. catenella en esta amplia zona y mucho más habitada que la Duodécima Región. Inicialmente se recolectaron muestras mensuales y desde fines de 2000 semanales tanto de fitoplancton como de mariscos en un número de estaciones que varió cada año. Desde fines de 1995 al 2002 se registraron cuatro floraciones de A. catenella, con intensidad y distribución variable, observándose una expansión de la distribución geográfica de esta especie hacia el norte (desde aproximadamente 45° 47' S en 1996 a 42° S, Chiloé en 2002. Las cuatro floraciones registradas fueron marcadamente estacionales, concentradas entre los meses de enero a marzo y coincidieron con los máximos registros del veneno paralizante de los mariscos. Los datos analizados sugieren que el origen de las floraciones de A. catenella en las aguas interiores de la región estaría asociada a la presencia de bancos de quistes, cuyo ciclo de vida se expresa con una variación bianual debido a la variación en condiciones ambientales que favorecen la germinación de estos organismos. La influencia de oscilaciones en el océano adyacente que estarían afectando las características de circulación general de las aguas interiores y las características de la columna de

A new species of Hisonotus (Siluriformes, Loricariidae from rio São Francisco basin, Brazil

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Fábio Roxo

2015-04-01

Full Text Available A new species of Hisonotus is described from the rio São Francisco basin. The new species can be distinguished from congeners by having (1 a unique coloration pattern of caudal fin with one black spot extending from its origin to the ventral lobe and two dark spots at the end of the lobe’s rays; (2 odontodes forming longitudinally aligned rows on head and trunk; (3 a functional V-shaped spinelet; (4 a single rostral plate at the tip of the snout; (5 by lacking contrasting dark geometric spots on the anterodorsal region of the body; (6 a lower caudal-peduncle depth; and (7 lower counts of the lateral median plates and (8 higher premaxillary and dentary teeth. The new species is the second described species of the genus Hisonotus in the rio São Francisco basin. It was found inhabiting the marginal vegetation of the rio São Francisco and three of its tributary, rio das Velhas, rio Paraopeba and rio Formoso.

Morphological diversity of fish along the rio das Velhas, Minas Gerais, Brazil

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Nara Tadini Junqueira

2012-01-01

Full Text Available The rio das Velhas, located in central Minas Gerais State (Brazil, is a major tributary of the rio São Francisco. Despite several anthropogenic pressures, this basin supports more than 115 fish species. The aim of this study was to compare the morphological space occupied by fish assemblages in four regions (headwaters, upper, middle, and lower course along the channel of the rio das Velhas. We try to answer the following question: Is there a change in the morphological organization of the fish along the longitudinal gradient of the river? Individuals from 67 species, collected at several sites in the basin from 1999 to 2008, were measured for 11 morphological attributes related to swimming behavior and habitat use. Through the graphs, the first two dimensions of the PCA suggest that the morphological volume occupied by the headwaters region is smaller than the other sections, because of the low richness of the site. However, morphological hypervolumes of the four reaches analyzed by Euclidean distances were not statistically different. The results indicated that only the density of morphological types increases along the rio das Velhas, and there is no difference between the headwaters and upper courses. Therefore, in order to use functional groups related to the morphology of the species as tools to take measures for the conservation and revitalization of the rio das Velhas, it is necessary analyze the density of species within these groups, as well as their composition.O rio das Velhas, localizado na região central do estado de Minas Gerais (Brasil, é o mais extenso tributário do rio São Francisco. Apesar dos inúmeros impactos antrópicos que sofre, sua bacia abriga uma rica ictiofauna, com mais de 115 espécies conhecidas. O objetivo deste estudo foi comparar o espaço morfológico ocupado pelas assembleias de peixes em quatro regiões (cabeceira, alto curso, médio curso e baixo curso ao longo da calha do rio das Velhas. Procuramos

U-Pb and Lu-Hf zircon geochronology of the Cañadón Asfalto Basin, Chubut, Argentina: Implications for the magmatic evolution in central Patagonia

Science.gov (United States)

Hauser, N.; Cabaleri, N. G.; Gallego, O. F.; Monferran, M. D.; Silva Nieto, D.; Armella, C.; Matteini, M.; Aparicio González, P. A.; Pimentel, M. M.; Volkheimer, W.; Reimold, W. U.

2017-10-01

The Cañadón Asfalto basin, central Chubut, Argentina, comprises a volcano-sedimentary sequence related to the opening of the Atlantic Ocean during Mesozoic times. The Lonco Trapial, Cañadón Asfalto and Cañadón Calcáreo formations are the main units related to the evolution of this basin. The Las Chacritas and Puesto Almada members are distinguished in the Cañadón Asfalto Formation. LA-HR-ICP-MS U-Pb and Lu-Hf data on zircon were obtained on these units. The Lonco Trapial Formation gave a weighted average age of 172.3 ± 1.8 Ma. A pyroclastic level from the Las Chacritas Member gave a weighted average age of 168.2 ± 2.2 Ma. Two U-Pb concordant ages of 160.3 ± 1.7 Ma on a laminated tuffite and 158.3 ± 1.3 Ma on a pyroclastic level were obtained for the Puesto Almada Member. Two maximum depositional ages constrain the sedimentary provenance areas for the basin: 1) A sample from the Sierra de la Manea range, where a controversial unit related either to the Cañadón Asfalto or to the Cañadón Calcáreo formation occurs, gave an age of 176.6 ± 1.0 Ma. Two younger zircon crystals indicate that this unit may be related to the Cañadón Calcáreo Formation. 2) A sandstone with cross-stratification from the Puesto Almada Member gave a maximum depositional age of 173.6 ± 6.4 Ma. In terms of U-Pb and Lu-Hf isotopes, two magmatic events are identified in central Patagonia: the Mamil Choique magmatic event characterized by negative εHf values around -5.0 and representing recycling during Permian times of Mesoproterozoic crust (TDM of ∼1.5 Ga), and the Cañadón Asfalto magmatic event with negative (-8.2) to positive (+4) εHf values and Meso- to Neoproterozoic TDM between 1.5 and 0.8 Ga. The younger event is characterized by three main cycles: C1 related to the Lonco Trapial magmatism, C2 to the Las Chacritas volcanism, and C3 to the Puesto Almada volcanism. These cycles are related with Marifil, Chon Aike and El Quemado formations volcanics events of

ANÁLISE DE CONTEÚDO DOS ITENS OBRIGATÓRIOS OU RECOMENDADOS E DE DIVULGAÇÃO ESPONTÂNEA NO RELATÓRIO DA ADMINISTRAÇÃO DAS COMPANHIAS ABERTAS

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ALESSANDRA VASCONCELOS GALLON

2008-04-01

Full Text Available O artigo descreve a análise de conteúdo da evidenciação nos Relatórios da Administração das empresas participantes dos níveis de governança da Bovespa, relacionada aos itens obrigatórios pela Lei nº 6.404/76, recomendados pela CVM através do Parecer de Orientação nº 15/87 e outros itens de divulgação espontânea. A pesquisa caracteriza-se como descritiva, realizada por meio de análise documental, com análise de clusters. Os resultados mostram que as 55 companhias abertas brasileiras, participantes do nível 1 e 2 de governança e novo mercado da Bovespa, segundo o BDI nº 190/2005, independente do nível de governança, evidenciaram no Relatório de Administração de 2004 mais sentenças do tipo declarativa. Comparando-se o número de sentenças evidenciadas de itens obrigatórios e recomendados e de itens de divulgação espontânea, nota-se que a maior evidenciação é referente aos itens obrigatórios e recomendados. Conclui-se que os Relatórios da Administração das companhias abertas brasileiras apresentam níveis relativamente baixos de evidenciação voluntária.

TERRITÓRIOS ALTERNATIVOS: ESPAÇOS FRONTEIRIÇOS E TRANSFRONTEIRIÇOS

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Jurany Leite Rueda

2017-06-01

Full Text Available O livro (Territórios Alternativos é uma coletânea resultante da trajetória do autor pelas trilhas da Geografia, e cobre o período de 1987 a 1998, promovendo um panorama sobre as discussões à volta do espaço geográfico e do território em suas diferentes dimensões.

Mortalidade por tuberculose e indicadores sociais no município do Rio de Janeiro Tuberculosis mortality and social indicatory in Rio de Janeiro city

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Genésio Vicentin

2002-01-01

Full Text Available Este artigo estuda a mortalidade por tuberculose no município do Rio de Janeiro ocorrida no ano de 1991 em comparação com indicadores sociais. Utilizou-se o software SPSS 8.0 - 1997 na análise estatística dos dados, que mostrou a existência de correlação entre a maioria dos indicadores socioeconômicos estudados e o coeficiente de mortalidade por tuberculose por 100 mil habitantes/ano. Apresentaram correlação significativa e direta os indicadores: índice de Robin Hood, razão de renda entre os 10% mais ricos e os 40% mais pobres e proporção de chefes de família com renda média entre um e dois salários mínimos. A correlação foi inversa e significativa com os indicadores: proporção de residentes com mais de 10 anos com curso superior, área média por domicílio, número de cômodos por domicílio, renda média em salários mínimos, e proporção de chefes de família com rendas entre 10-15, 16-20 e acima de 20 salários mínimos. Para a apresentação destes indicadores usou-se mapas do município, categorizados e distribuídos por Regiões Administrativas, revelando distintos Rios de Janeiro, quando este é visto sob o ângulo social: da doença, ou de vários outros indicadores.Regional tuberculosis mortality levels and their Rio de Janeiro City principals social indicatories at year 1991 have been compared in this study. Software SPSS 8.0 - 1997 was applied on making statistical data analysis, and have disclosed a present correlation among most indicative socioeconomics trends and the annual tuberculosis mortality coeficient/100 thousand inhabitants. Others social indicatives than Robin Hood index, 10% more rich to 40% more poor reason, head of family proportion wich 1-2 minimum wage monthly gain, disclosed imediate and significative statistical assurance level. In reverse and significative statistical assurance level, resident proportion with more 10 years old that have superior course, house área average, room average

Repositórios institucionais de acesso livre no Brasil: estudo Delfos

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Ernani Rufino dos Santos Junior

2015-06-01

Full Text Available A filosofia do acesso livre ao conhecimento científico surgiu da dificuldade das bibliotecas universitárias de todo mundo em manter atualizadas as assinaturas das coleções de periódicos científicos. Os repositórios institucionais são uma das ferramentas que se mostram como alternativa para a comunicação da Ciência livre de barreiras de acesso. A pesquisa tem por objetivo verificar quais são as perspectivas futuras das atuais políticas de implementação de repositórios institucionais de acesso livre no Brasil na opinião de especialistas na área, tendo como base a análise do estado da arte das implementações de Repositórios Institucionais no Brasil. Neste trabalho, a pesquisa é dividida em três etapas: a primeira consiste na coleta de dados descritivos dos repositórios institucionais da Universidade de Brasília (RIUnB e do Superior Tribunal de Justiça (BDJur-STJ; já na segunda etapa de pesquisa, procede-se à consulta aos especialistas indagando-os acerca da situação atual das implementações de repositórios institucionais no Brasil; e, por fim, na terceira etapa de pesquisa consultamos estes mesmos especialistas sobre os desdobramentos futuros destas políticas no País. Utilizamos da técnica Delfos de pesquisa, onde os especialistas são consultados através de questionários constituídos de perguntas abertas, possibilitando assim chegar a um consenso das opiniões no final da pesquisa. Como resultado da pesquisa, é elaborado um quadro com a tabulação das respostas dos especialistas consultados revelando o panorama das perspectivas futuras das implementações de repositórios institucionais no Brasil na opinião dos especialistas que fazem parte da nossa amostra de pesquisa.

Human effects in Holocene fire dynamics of Central Western Patagonia (~44° S, Chile

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César Méndez

2016-08-01

Full Text Available The forest-steppe ecotone of the eastern slope of the Andes in Central Western Patagonia (43°40'-49°15' S, Chile, South America provides a unique area for assessing long and short term dynamics between humans and past environments. Central Western Patagonian was a demographically marginal zone inhabited intermittently and with low intensity by hunter-gatherers during the Holocene. This paper adopts a novel approach in order to assess the relationship between trends in the archaeological, pollen and charcoal records. The recognition of temporal and spatial scales in both archaeology and paleoecology is crucial for defining roles in paleofire records. The main goal of the paper is to assess the role of climate and human beings as potential ignitors of wildfires by acknowledging the scales in which they operate and the different roles either one played in paleofire trends. We investigated a case study in the Cisnes River Valley where the frequencies and magnitudes of fire episodes – reconstructed from macro-charcoal particles from the Lake Shaman intermoraine sequence – can be attributed to human action, while acknowledging the driving role of climate over broader time scales. The Lake Shaman charcoal record spanning the last 19000 cal years is compared to the archaeological record starting at 11500 cal years BP. After comparing paleofires, reconstructed from the charcoal record, with peaks and troughs in the radiocarbon record and archaeological evidence at local and site scales, we argue that this approach provides insights for assessing the timing and magnitude of human effects on the environment. We examine collation and correlation scenarios for comparative trends between the archaeological, pollen and charcoal records. The correlation of occupational events at the El Chueco 1 archaeological site and other sites along the Cisnes River Valley with the results obtained at Lake Shaman is suggestive of a combination of human agency and

A prova no processo administrativo tributário

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Adriano Ribeiro Caldas

2014-12-01

Full Text Available O objetivo deste trabalho é discutir o papel da prova no âmbito do processo administrativo tributário, assim como os limites para a sua apresentação e a distribuição do ônus de sua produção. Para tanto, serão analisados os institutos da preclusão e da presunção, partindo-se sempre dos princípios aplicáveis ao processo administrativo tributário, notadamente os princípios do devido processo legal, da verdade material e do formalismo moderado.

Interactieve ontwerpmethodieken voor integrale duurzaamheid Toepassing van RIO in een aantal niet-veehouderij-gebonden cases

NARCIS (Netherlands)

Bos, A.P.; Annevelink, E.; Bos, H.L.; Keijsers, E.R.P.; Maas, van der M.P.; Poot, E.H.; Vermeulen, T.; Raaphorst, M.G.M.; Maas, van der A.A.; Schoorlemmer, H.B.; Dijk, van S.M.

2013-01-01

RIO (Reflexief Interactief Ontwerpen) bestaat uit drie hoofdonderdelen: de (systeem)analysefase, de ontwerpfase en de verankeringsfase. RIO is ontstaan in een veehouderijcontext. Die context heeft een aantal specifieke eigenschappen, die toepassing van RIO in andere sectoren niet volledig

Grupos musicais em saúde mental: Atores em ação no cenário da reforma psiquiátrica no Rio de Janeiro/Brasil

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João Arriscado Nunes

2012-10-01

Full Text Available O artigo investiga a formação de grupos musicais com usuários dos serviços de saúde mental da cidade do Rio de Janeiro. As seguintes questões norteiam a pesquisa: a qual é a relação entre tais grupos musicais e outros dispositivos grupais de tratamento, como a musicoterapia?; b como lidam esses grupos com a inclusão social dos usuários dos serviços?; c e como lidam com a renda gerada pelos CDs gravados e pelos shows?; d que efeitos produz a visibilidade dos grupos nas mídias televisiva, impressa e outras? A pesquisa de campo foi realizada com o referencial da teoria ator‑rede e se centrou em dois grupos musicais: o Sistema Nervoso Alterado e o Harmonia Enlouquece. As conclusões indicam que a emergência de tais grupos musicais está associada ao cenário da Reforma Psiquiátrica e que as suas práticas podem problematizar e contrariar o estigma da loucura.

Rio de Janeiro: Instrumentation school

International Nuclear Information System (INIS)

Anon.

1990-01-01

Students from Latin America were able to get hands-on experience in state-of-the-art physics instrumentation in this year's School on Instrumentation for High Energy Physics organized by the active Instrumentation Panel of ICFA (the International Committee for Future Accelerators) at the Centro Brasileiro de Pesquicas Fisicas (CBPF), Rio de Janeiro, in July

In-situ Moessbauer Spectroscopy with MIMOS II at Rio Tinto, Spain

Energy Technology Data Exchange (ETDEWEB)

Fleischer, I; Klingelhoefer, G; Wehrheim, S; Ebert, S; Panthoefer, M; Blumers, M; Schmanke, D; Maul, J; Schroeder, C [Institut fuer Anorganische und analytische Chemie, Johannes-Gutenberg-Universitaet Mainz, Staudinger Weg 9, 55128 Mainz (Germany); Rull, F, E-mail: fleischi@uni-mainz.d [Unidad Asociada UVA-CSIC, al Centro de AstrobiologIa, Universidad de Valladolid, 47006-Valladolid (Spain)

2010-03-01

The Rio Tinto, located in southwest Spain, exhibits a nearly constant, acidic pH-value along its course. Due to the formation of sulfate minerals, Rio Tinto is considered a potential analogue site for sulfate-rich regions on Mars, in particular at the landing site of the Mars Exploration Rover Opportunity, where the ferric sulfate mineral jarosite was identified with Opportunity's Moessbauer spectrometer. Primary and secondary mineralogy was investigated in situ with portable Raman and Moessbauer spectrometers at four different Rio Tinto sampling sites. The two techniques analyse different sample portions due to their specific field of view and sampling depth and provide complementary mineralogical information.

In-situ Moessbauer Spectroscopy with MIMOS II at Rio Tinto, Spain

International Nuclear Information System (INIS)

Fleischer, I; Klingelhoefer, G; Wehrheim, S; Ebert, S; Panthoefer, M; Blumers, M; Schmanke, D; Maul, J; Schroeder, C; Rull, F

2010-01-01

The Rio Tinto, located in southwest Spain, exhibits a nearly constant, acidic pH-value along its course. Due to the formation of sulfate minerals, Rio Tinto is considered a potential analogue site for sulfate-rich regions on Mars, in particular at the landing site of the Mars Exploration Rover Opportunity, where the ferric sulfate mineral jarosite was identified with Opportunity's Moessbauer spectrometer. Primary and secondary mineralogy was investigated in situ with portable Raman and Moessbauer spectrometers at four different Rio Tinto sampling sites. The two techniques analyse different sample portions due to their specific field of view and sampling depth and provide complementary mineralogical information.

Using dental enamel wrinkling to define sauropod tooth morphotypes from the Cañadón Asfalto Formation, Patagonia, Argentina.

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Femke M Holwerda

Full Text Available The early Middle Jurassic is regarded as the period when sauropods diversified and became major components of the terrestrial ecosystems. Not many sites yield sauropod material of this time; however, both cranial and postcranial material of eusauropods have been found in the Cañadón Asfalto Formation (latest Early Jurassic-early Middle Jurassic in Central Patagonia (Argentina, which may help to shed light on the early evolution of eusauropods. These eusauropod remains include teeth associated with cranial and mandibular material as well as isolated teeth found at different localities. In this study, an assemblage of sauropod teeth from the Cañadón Asfalto Formation found in four different localities in the area of Cerro Condor (Chubut, Argentina is used as a mean of assessing sauropod species diversity at these sites. By using dental enamel wrinkling, primarily based on the shape and orientation of grooves and crests of this wrinkling, we define and describe three different morphotypes. With the exception of one taxon, for which no cranial material is currently known, these morphotypes match the local eusauropod diversity as assessed based on postcranial material. Morphotype I is tentatively assigned to Patagosaurus, whereas morphotypes II and III correspond to new taxa, which are also distinguished by associated postcranial material. This study thus shows that enamel wrinkling can be used as a tool in assessing sauropod diversity.

Using dental enamel wrinkling to define sauropod tooth morphotypes from the Cañadón Asfalto Formation, Patagonia, Argentina.

Science.gov (United States)

Holwerda, Femke M; Pol, Diego; Rauhut, Oliver W M

2015-01-01

The early Middle Jurassic is regarded as the period when sauropods diversified and became major components of the terrestrial ecosystems. Not many sites yield sauropod material of this time; however, both cranial and postcranial material of eusauropods have been found in the Cañadón Asfalto Formation (latest Early Jurassic-early Middle Jurassic) in Central Patagonia (Argentina), which may help to shed light on the early evolution of eusauropods. These eusauropod remains include teeth associated with cranial and mandibular material as well as isolated teeth found at different localities. In this study, an assemblage of sauropod teeth from the Cañadón Asfalto Formation found in four different localities in the area of Cerro Condor (Chubut, Argentina) is used as a mean of assessing sauropod species diversity at these sites. By using dental enamel wrinkling, primarily based on the shape and orientation of grooves and crests of this wrinkling, we define and describe three different morphotypes. With the exception of one taxon, for which no cranial material is currently known, these morphotypes match the local eusauropod diversity as assessed based on postcranial material. Morphotype I is tentatively assigned to Patagosaurus, whereas morphotypes II and III correspond to new taxa, which are also distinguished by associated postcranial material. This study thus shows that enamel wrinkling can be used as a tool in assessing sauropod diversity.

Innovation politics post-Rio+20: hybrid pathways to sustainability?

OpenAIRE

Adrian Ely; Adrian Smith; Andy Stirling; Melissa Leach; Ian Scoones

2013-01-01

The ability of innovation—both technical and social—to stretch and redefine ‘limits to growth’ was recognised at Stockholm in 1972, and has been a key feature in debates through to Rio+20 in 2012. Compared with previous major moments of global reflection about human and planetary futures—Stockholm, Rio in 1992, Johannesburg in 2002—we now have a better understanding of how innovation interacts with social, technological, and ecological systems to contribute to transitions at multiple levels. ...

Biomonitoramento indica poluição do Rio Guandu por compostos cancerígenos

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Mayra Mansur Reimann

2013-12-01

Full Text Available O rio Guandu é responsável pelo fornecimento de água potável para mais de 10 milhões de pessoas da região metropolitana do Rio de Janeiro. Entretanto, diversos estudos têm demonstrado que esse rio apresenta elevados níveis de contaminação por substâncias que podem causar mutações e câncer. Portanto, é de extrema importância que providências sejam tomadas para melhorar a qualidade da água dessa bacia hidrográfica. O objetivo deste estudo foi avaliar o potencial do uso da enzima etoxiresorufina O-desetilase (EROD hepática de tilápias (Oreochromis niloticus como biomarcadora no monitoramento da qualidade da água do rio Guandu. A atividade da enzima foi determinada através de fluorimetria em frações microssomais e pós-mitocondriais de tilápias capturadas no rio Guandu e em dois sítios controles. Nossos resultados mostraram que a EROD hepática de tilápias capturadas no rio Guandu apresentou atividade 700% maior do que daquelas capturadas nos sítios controles. Esta elevada atividade da EROD nos fígados das tilápias do rio Guandu indica grande indução da subfamília de CYP1A. Diversos autores têm demonstrado que a indução desta isoforma de citocromo P-450 está associada à presença dos contaminantes bifenilas policloradas (PCB  e dioxinas, que apresentam atividade cancerígena. Frente a estes resultados, não recomendamos o consumo de peixes capturados no rio Guandu, e sugerimos que outras pesquisas sejam feitas para que a origem destes contaminantes ambientais seja esclarecida.   Palavras-chave: Citocromo P-450, Monitoramento, Poluição, Rio Guandu, Tilapia.

Histoplasmose pulmonar aguda no Rio Grande do Sul Acute pulmonary histoplasmosis in the State of Rio Grande do Sul, Brazil

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Gisela Unis

2005-02-01

Full Text Available INTRODUÇÃO: A histoplasmose pulmonar aguda depende da inalação de uma grande quantidade de propágulos fúngicos por um paciente hígido. O tempo de exposição determina a gravidade da doença. Uma epidemia é influenciada por fatores que afetam o crescimento e a transmissão do Histoplasma capsulatum var. capsulatum na natureza. OBJETIVO: Identificar os aspectos epidemiológicos e clínico-laboratoriais dos pacientes com histoplasmose pulmonar aguda no Rio Grande do Sul e compará-los com as microepidemias relatadas no Brasil. MÉTODO: Foram revisados 212 prontuários clínicos de pacientes com histoplasmose dos arquivos do Laboratório de Micologia do Complexo Hospitalar Santa Casa de Porto Alegre (RS num período de 25 anos (1977-2002. Foram identificados e incluídos no estudo os casos de histoplasmose pulmonar aguda com cultivo positivo e/ou achado histopatológico compatível. As microepidemias foram diagnosticadas com a comprovação de um caso ou evidência soromicológica com história clínica compatível. Foram revisadas as microepidemias publicadas no Brasil. RESULTADOS: Dezoito de um total de 212 pacientes (8,5% foram incluídos no trabalho. A idade variou de 8 a 63 anos (média de 35,4; mediana de 34,5, e 67% eram do sexo masculino. A história epidemiológica foi sugestiva em 11 pacientes (61%. O tipo primário de histoplasmose pulmonar aguda foi o mais freqüente (17; 95%. Houve predomínio de casos isolados. CONCLUSÃO: O reconhecimento de casos isolados e a presença de microepidemias demonstram a abundância do H. capsulatum no solo, e juntamente com a ocorrência de todas as formas da doença, confirmam o Rio Grande do Sul como hiperendêmico para histoplasmose.BACKGROUND: Acute pulmonary histoplasmosis is a respiratory infection occurring when an otherwise healthy individual inhales a large quantity of fungal propagules. Length of exposure determines disease severity. An epidemic is influenced by factors affecting the

Education for Sustainable Development at the United Nations Conference on Sustainable Development (Rio+20)

Science.gov (United States)

Journal of Education for Sustainable Development, 2012

2012-01-01

The United Nations Conference on Sustainable Development (Rio+20) was held in Rio de Janeiro, Brazil, 20-22 June 2012, marking the twentieth anniversary of the United Nations Conference on Sustainable Development in Rio de Janeiro in 1992 and the tenth anniversary of the 2002 World Summit on Sustainable Development in Johannesburg. With more than…

Prevalência de sintomáticos respiratórios e tuberculose ativa.

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Catiane Correa Pereira

2013-07-01

Full Text Available Objetivo: Estimar a prevalência de sintomáticos respiratórios e tuberculose ativa em uma população privada de liberdade no Rio Grande do Sul, Brasil. Métodos: Estudo epidemiológico descritivo no Presídio Regional de Santa Cruz do Sul, a partir de triagem realizada para identificação de sintomáticos respiratórios (SR utilizando instrumento recomendado pela OMS. Após a identificação dos sintomáticos respiratórios, foi realizada entrevista e coleta de amostras biológicas para realização de sorologia para HIV, baciloscopia, cultura e teste de susceptibilidade do Mycobacterium tuberculosis frente aos antibióticos para. Resultados: Um total de 70 indivíduos (20,6% foram considerados sintomáticos respiratórios. Entre os sintomáticos respiratórios, a prevalência de tuberculose e HIV na população estudada foi de 1,9% e 4,48%, respectivamente. Conclusão: Medidas de prevenção devem ser adotadas como forma de conter a transmissão da tuberculose no presídio e de prevenir o contágio na comunidade carcerária, bem como de familiares. A cooperação entre o sistema prisional e departamentos locais de saúde é necessária para melhorar a realização de diagnósticos e acompanhamento de pacientes.

Synthesis of national reports for Rio+20

Energy Technology Data Exchange (ETDEWEB)

NONE

2013-01-15

In the lead up to the United Nations Conference on Sustainable Development (Rio+20), which took place in Brazil in June 2012, there were numerous efforts in countries around the world to help governments, civil society organizations and individuals prepare for the event. One of the more significant efforts led by UNDP in collaboration with the United Nations Department of Economic and Social Affairs (UN DESA) was a support programme to 72 countries across all regions to build a consensus on national views around the themes and objectives of the Rio+20 Conference. This report highlights significant advances in sustainable development from almost 60 country reports and underscores the challenges and bottlenecks to moving beyond the economic-led growth strategies of the past 20 years.

A FALTA DE SANEAMENTO E O IMPACTO AMBIENTAL EM RIOS URBANOS

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Leandro Souza de Freitas

2017-01-01

Full Text Available O impacto ambiental em rios traz uma preocupação com a falta d’água nos dias atuais. O rio base deste estudo é o rio Pilar localizado na Baixada Fluminense no estado do Rio de Janeiro. É cada vez maior a importância, nos dias atuais, de se buscar o uso racional da água, consciência essa já comumente disseminada no meio empresarial e entre a população, fato evidenciado pela crise hídrica vivida recentemente pela região sudeste (2014-2015. Ainda que rios, lagos e córregos abasteçam regiões inteiras e desempenhem um papel fundamental na vida de todos. A preservação dos cursos d'água no Brasil está longe de ser a ideal, embora disponham de avançado arcabouço legislativo, como por exemplo, a lei nº 9.433, de 1997. A poluição hídrica de maior representatividade em volume e carga é de natureza orgânica, principalmente por estar associada à composição dos esgotos domésticos. Este problema já está contornado em países mais desenvolvidos, mas ainda constitui o principal impacto de qualidade ambiental no Brasil.

A construção do hipertexto em dicionários escolares infantis

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Rodrigo Alves Silva

2017-07-01

Full Text Available Este trabalho analisou a hipertextualidade em dicionários escolares infantis avaliados pelo PNLD. Para tanto, observou-se, na construção do hipertexto, os elementos multimodais, principalmente os boxes que contêm outros gêneros textuais. Este trabalho partiu do pressuposto de que o hipertexto está também presente no texto impresso e não é exclusivo do texto virtual, baseado em Koch (2009 e Coscarelli (2009. Além disso, utilizou-se dos conceitos de multimodalidade para a análise das páginas dos dicionários. O corpus de análise é composto por dois dicionários escolares: Saraiva Júnior: dicionário da língua portuguesa ilustrado (2009 e Saraiva infantil de A a Z: dicionário da língua portuguesa ilustrado (2012. Uma análise prévia permitiu concluir que esses dicionários possuem recursos multimodais (como imagens, boxes com poemas, adivinhações etc. que ajudam a tornar esses materiais objetos hipertextuais, pois as informações não ficam apenas a cargo dos verbetes, mas também estão presentes nos demais elementos que os circundam.

A pedagogia do Rosário, conteúdo educativo da festa: estudo do potencial pedagógico contido na festa de Nossa Senhora do Rosário

OpenAIRE

Maria das Merces Bonfim Ambrosio

1989-01-01

Elaborado como dissertação de Mestrado em educação, "A Pedagogia do Rosário-caráter educativo da Festa", objetivou desvendar os conteúdos educativos presentes na Festa de Nossa Senhora do Rosário, em Sete Lagoas-MG. Através da participação nesses eventos, nos anos de 1981 e 1982 e de entrevistas com membros das guardas de Nossa Senhora do rosário naquela cidade- além de leitura orientada-foi possível traçar as linhas dessa pedagogia, presentes neste trabalho. Trata-se de uma manifestação cult...

O tratado sobre a luz de Huygens: comentários

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Sonia Krapas

2011-01-01

Full Text Available http://dx.doi.org/10.5007/2175-7941.2011v28n1p123 Huygens é conhecido no ensino introdutório de Física por dar conta da refração segundo um modelo ondulatório. Livros didáticos lhe rendem homenagens atribuindo seu nome a um princípio, mas em sua obra máxima, Tratado sobre a luz, é possível se ver muito mais: sua inventividade na defesa de um modelo ondulatório para a luz como alternativo ao modelo corpuscular. Neste trabalho, tenta-se evidenciar o raciocínio de Huygens, mostrando que, apesar de ter sido publicada há mais de trezentos anos, a obra está escrita numa linguagem relativamente acessível.

The city and its souvenirs: Rio de Janeiro for tourists to have

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Bianca Freire-Medeiros

2007-09-01

Full Text Available This article examines some aspects of the tourist representation of Rio de Janeiro having the souvenirs as support. It reflects upon the tourist image of the city as it appears in the objects considered to be typically for tourists by proposing a folded movement: to the material collected in four stores in Rio de Janeiro, it opposes souvenirs with different cultural backgrounds. It aims at interpreting the place occupied by souvenirs in the broader setting of representations and cultural products that establish Rio as a tourist destination.

Albuquerque/Middle Rio Grande Urban Waters Viewer

Data.gov (United States)

U.S. Environmental Protection Agency — These data have been compiled in support of the Middle Rio Grande/Albuquerque Urban Waters Partnership for the region including Albuquerque, New Mexico.The Middle...

Past, Present and Future of General Chemistry in the PUC-Rio.

Science.gov (United States)

Farias, Percio A. M.; Goulart, Mauricio S.; de Mello, Paulo Correa

This manuscript describes the role of chemistry as a vehicle for understanding many other basic sciences and engineering based on the experience acquired in the General Chemistry course at the "Center Technical-Scientific" at the Pontific Catholic University of Rio de Janeiro (CTC-PUC-Rio). A description of the history of the General…

Os tempos da enunciação e dos enunciados publicitários e a questão do cronotopo publicitário

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Eneus Trindade

2008-09-01

Full Text Available Este texto refere-se a uma teoria da enunciação publicitária. O objetivo principal é apresentar as nossas reflexões sobre os efeitos temporais nos discursos publicitários. Assim, são considerados os efeitos temporais da enunciação e dos enunciados publicitários. Nossa reflexão discute também a questão da fusão do tempo ao espaço no discurso da publicidade, apresentando o conceito de cronotopo publicitário. Palavras-chave: Enunciação; publicidade; processos midiáticos e culturais; tempo. ABSTRACT This text refers to theory of enunciation process in advertising. The main aim is to present our reflections about time effects in advertising discourses. We considered the time effects of enunciation and advertising messengers announced. Our reflection aims to discuss too relations between space and time in advertising discourse presenting the concept of advertising cronotopo. Keywords: Enunciation; advertising; midiatic and cultural process; time.

Raptor Use of the Rio Grande Gorge

Energy Technology Data Exchange (ETDEWEB)

Ponton, David A. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

2015-03-20

The Rio Grande Gorge is a 115 km long river canyon located in Southern Colorado (15 km) and Northern New Mexico (100 km). The majority of the canyon is under the administration of the Bureau of Land Management {BLM), and 77 km of the canyon south of the Colorado/New Mexico border are designated Wild River under the National Wild and Scenic Rivers Act of 1968. Visits I have made to the Rio Grande Gorge over the past 15 .years disclosed some raptor utilization. As the Snake River Birds of Prey Natural Area gained publicity, its similarity to the Rio Grande Gorge became obvious, and I was intrigued by the possibility of a high raptor nesting density in the Gorge. A survey in 1979 of 20 km of the northern end of the canyon revealed a moderately high density of red-tailed hawks and prairie falcons. With the encouragement of that partial survey, and a need to assess the impact of river-running on nesting birds of prey, I made a more comprehensive survey in 1980. The results of my surveys, along with those of a 1978 helicopter survey by the BLM, are presented in this report, as well as general characterization of the area, winter use by raptors, and an assessment of factors influencing the raptor population.

Agreement between Los Rios Community College District and Los Rios College Federation of Teachers (Local 2279, American Federation of Teachers, AFL-CIO), July 1, 1987-June 30, 1990.

Science.gov (United States)

Los Rios Community Coll. District, Sacramento, CA.

The collective bargaining agreement between the Los Rios Community College District Board of Trustees and the Los Rios College Federation of Teachers/California Teachers Association/National Education Association is presented. This contract, covering faculty at American River College, Cosumnes River College, and Sacramento City College, applies to…

Diferenças entre fatores de risco para infecção pelo HIV em usuários de drogas injetáveis do Rio de Janeiro e Porto Alegre Risks differences of HIV infection between injection drug users in Rio de Janeiro and Porto Alegre

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Raquel De Boni

2005-01-01

Full Text Available INTRODUÇÃO: No Brasil, aproximadamente 19 mil pessoas adquiriram o vírus HIV por meio do uso de drogas injetáveis desde o início da epidemia, com a soroprevalência em amostras destes usuários variando entre 25% e 65%. O objetivo deste estudo é comparar os comportamentos de risco para infecção por HIV entre amostras de usuários de cocaína injetável do Rio de Janeiro e de Porto Alegre. MÉTODOS: Comparação entre dados de estudos transversais conduzidos em Porto Alegre e no Rio de Janeiro. Um grupo de 250 indivíduos que haviam utilizado cocaína injetável nos seis meses prévios à coleta respondeu ao RBA (Risk Behaviour Assessement e realizou testagem anti-HIV em ambos os centros. RESULTADOS: Não houve diferença estatisticamente significativa entre os dados demográficos, exceto entre as médias de idade (31 anos no Rio de Janeiro e 28 anos em Porto Alegre. Em Porto Alegre, houve maior uso de cocaína injetável e maior número de comportamentos de risco relacionados a este uso. No Rio de Janeiro, houve mais comportamentos sexuais de risco e uso mais freqüente de cocaína aspirada e álcool. DISCUSSÃO: Os usuários de cocaína injetável das duas regiões estudadas apresentavam freqüências diferentes nos comportamentos de risco para HIV, e estes comportamentos parecem estar relacionados com o tipo, a via e a freqüência das drogas utilizadas. Os dados foram coletados entre 1994 e 1997, quando o uso de crack era menor nestas cidades, o que pode ter alterado o padrão atual de comportamentos de risco para HIV em usuários de cocaína.INTRODUCTION: In Brazil, about 19.000 of HIV cases have been attributed to injection drug use, with the seroprevalence among such samples ranging from 25% to 65%. The aim of this study is to compare drug using and HIV risk behaviors among injection cocaine users in Rio de Janeiro and Porto Alegre. METHODS: Comparative analysis of cross-sectional data from two studies conducted in Porto Alegre and

Quando o imaginário se diz educacional

OpenAIRE

Araújo, Alberto Filipe

2010-01-01

O imaginário educacional é devedor da concepção romântica de educação que privilegia a formação da interioridade do sujeito (daquilo que Jung denomina de das Selbst : o si-mesmo) por meio de uma viagem iniciática sob a forma, por exemplo, do "romance de formação". Daí a necessidade de se estruturar, mediante uma hermenêutica adequada, aquilo que constitui a sustância do imaginário educacional (alegorias, metáforas, símbolos, ideologemas e mitos), ainda que este apareça de um modo geral degrad...

Guidebook to Rio Grande rift in New Mexico

Science.gov (United States)

Hawley, J.W.

1978-01-01

Discusses the details of geologic features along the rift zone. Included are short papers on topics relative to the overall region. These papers and the road logs are of special interest to any one pursuing further study of the rift. This book is a comprehensive guide to the middle and late Cenozoic geology of the Rio Grande region of Colorado and New Mexico. Though initially used on field trips for the International Symposium on Tectonics and Magmatism of the Rio Grande rift, the guidebook will be useful to anyone interested in the Cenozoic history of the 600-mi-long area extending from central Colorado to El Paso, Texas.

ESTILOS FLUVIAIS E EVIDÊNCIAS DE MUDANÇAS AMBIENTAIS NA PLANÍCIE DO RIO MIRANDA, PANTANAL

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Eder Renato Merino

2013-03-01

Full Text Available O rio Miranda é um importante afluente do rio Paraguai e tem grande parte de seu curso na planície do Pantanal. O rio tem sinuosidade média a alta, sendo do tipo meandrante na maior parte do seu percurso em domínio aluvial. Com base nos padrões do canal e da planície, três segmentos fluviais com diferentes estilos foram caracterizados e descritos. Ainda nos domínios do planalto, o rio forma um cinturão de meandros numa planície agradacional, que está confinada em vale no embasamento cristalino. O rio deixa de correr num cinturão de meandros ao adentrar no Pantanal, para formar um cordão composto por canal e diques marginais que se destaca pela elevação mais alta em relação à planície agradacional, que se torna mais larga ao deixar o vale confinado. Paleocinturões de meandros e grandes meandros abandonados com dimensões superiores às dos canais atuais, existentes nas planícies agradacionais, permitem interpretar importantes mudanças ambientais e paleohidrológicas ocorridas a partir do Pleistoceno tardio. No seu baixo curso o rio volta a correr num cinturão de meandros, porem inciso em depósitos aluviais mais antigos, o que denuncia a natureza degradacional da planície distal do rio. Esta planície é palco da ação erosiva de fluxos de águas em lençol durante as inundações e de incisão por rede de pequenos canais tributários que drenam a planície depois das cheias. A avulsão ocorrida na altura do Morro do Azeite desempenhou importante papel na configuração do traçado do canal atual do rio Miranda, deslocando em 20 km para norte sua foz no rio Paraguai.  Palavras Chave – Rio Miranda, Pantanal, rio meandrante

Palmeiras (Arecaceae das restingas do Estado do Rio de Janeiro, Brasil Palms (Arecaceae from the restingas of Rio de Janeiro State, Brazil

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Ricardo Carneiro da Cunha Reis

2006-09-01

Full Text Available Neste trabalho foram coletadas, identificadas e sistematizadas as palmeiras das restingas do estado do Rio de Janeiro. Para a coleta de material, foram eleitas cinco estações de coleta consideradas representativas em termos de ocorrência de palmeiras. Foram identificadas 11 espécies, as quais podem ser reconhecidas pelo uso da chave dicotômica fornecida, e confirmadas pelas descrições e fotos apresentadas. O tratamento taxonômico das espécies encontra-se complementado por informações de distribuição geográfica, ecologia, nomes vulgares, e listas dos espécimes de herbário examinados.Palms of the restingas of Rio de Janeiro State were collected, identified and treated taxonomically. The plants were collected at five sites that are representative in terms of palm species occurrence. The 11 species can be identified using the dichotomous key and confirmed using descriptions and photos. The taxonomic treatment is accompanied by additional information on geographic distribution, ecology, common names, and lists of herbarium specimens examined.

A influência da marca Coca Cola na atratividade e manutenção dos funcionários em uma afiliada no Rio Grande Do Sul

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Christine da Silva Schröeder

2014-05-01

Full Text Available O estudo analisou a influência da marca Coca-Cola na atratividade e manutenção de funcionários em uma empresa afiliada de uma franqueada da The Coca-Cola Company, denominada CVI Refrigerantes Ltda., identificando o nível de conhecimento prévio dos colaboradores da empresa sobre a mesma, verificando os atributos relacionados à marca na visão destes e diagnosticando fatores considerados decisivos no momento da escolha da empresa como empregadora. Foi realizada análise documental e de entrevistas semiestruturadas com funcionários. Constata-se que a imagem e o nome da marca Coca-Cola constituem, para os funcionários, fortes atrativos, além dos benefícios e oportunidades de crescimento oferecidos.

OPTICAL FLOW APPLIED TO TIME-LAPSE IMAGE SERIES TO ESTIMATE GLACIER MOTION IN THE SOUTHERN PATAGONIA ICE FIELD

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E. Lannutti

2016-06-01

Full Text Available In this work, we assessed the feasibility of using optical flow to obtain the motion estimation of a glacier. In general, former investigations used to detect glacier changes involve solutions that require repeated observations which are many times based on extensive field work. Taking into account glaciers are usually located in geographically complex and hard to access areas, deploying time-lapse imaging sensors, optical flow may provide an efficient solution at good spatial and temporal resolution to describe mass motion. Several studies in computer vision and image processing community have used this method to detect large displacements. Therefore, we carried out a test of the proposed Large Displacement Optical Flow method at the Viedma Glacier, located at South Patagonia Icefield, Argentina. We collected monoscopic terrestrial time-lapse imagery, acquired by a calibrated camera at every 24 hour from April 2014 until April 2015. A filter based on temporal correlation and RGB color discretization between the images was applied to minimize errors related to changes in lighting, shadows, clouds and snow. This selection allowed discarding images that do not follow a sequence of similarity. Our results show a flow field in the direction of the glacier movement with acceleration in the terminus. We analyzed the errors between image pairs, and the matching generally appears to be adequate, although some areas show random gross errors related to the presence of changes in lighting. The proposed technique allowed the determination of glacier motion during one year, providing accurate and reliable motion data for subsequent analysis.

Estudo da dieta natural da ictiofauna de um reservatório centenário, São Paulo, Brasil

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Amanda R. Ribeiro

2014-12-01

Full Text Available Este estudo teve como objetivo caracterizar e comparar a alimentação de 13 espécies de peixes em três zonas (zona de influência fluvial, zona de transição e zona lacustre do reservatório de Itupararanga. Foram analisados 436 estômagos, sendo encontrados 17 recursos alimentares, todos de origem autóctone. As dietas predominantes das espécies foram: peixe, inseto, material vegetal e detritos na zona de influência fluvial, peixe, sedimento e material vegetal na zona de transição e inseto, escama e peixe na zona lacustre. Através do Índice Alimentar, as espécies foram categorizadas nas guildas: piscívora, insetívora, detritívora e carcinófaga. O Cluster indicou separação da guilda insetívora em espécies generalistas (insetos diversos e especialista (Chironomidae o que aumenta para cinco guildas. Na zona fluvial foram verificadas quatro guildas; na zona de transição três guildas e na zona lacustre duas guildas. Observou-se ainda uma dominância de espécies piscívoras que pode estar relacionada à idade do reservatório. Este estudo ampliou o conhecimento dos hábitos alimentares dos peixes em reservatórios antigos e suas diferenças, comparando as zonas existentes.

The road from Rio - OPEC's view

International Nuclear Information System (INIS)

Subroto

1994-01-01

The Secretary General of OPEC presents the views of OPEC on the environmental debate at the Rio Summit, the topic of environmental taxation. Recommendations are put forward on the financing of Agenda 21 programs and on the concept of technology transfer, to help achieve sustainable development

Imaginário, Cultura Global e violência escolar

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Joyce Mary Adam de Paula e Silva

2011-06-01

Full Text Available Neste artigo discutimos a questão da violência escolar à luz do referencial teórico do imaginário. A questão do imaginário a respeito da instituição escolar é analisada face a algumas características da sociedade atual apontadas por diferentes autores tais como Sennett, (2006, Taylor(2006, Baumann ( 2005. São apresentados alguns dados da pesquisa realizada com os professores de duas do interior do Estado de São Paulo, dando-se destaque para o imaginário sobre a escola e as relações que se estabelecem nesse contexto. Esta pesquisa teve como metodologia de coleta de dados a realização de uma dinâmica de grupo. Concluímos chamando a atenção para a importância de que os estudos sobre violência escolar busquem elucidar os diferentes aspectos institucionais focando não somente os alunos e a família dos mesmos, mas as interações que se processam no interior da escola. A análise institucional que enfoque os aspectos micro e macro social pode contribuir para que a escola consiga enfrentar os problemas em uma perspectiva mais realista, buscando caminhos no próprio grupo em interação explicitando barreiras que são interpostas pelo imaginário institucional.

Social Entrepreneurs in Rio De Janeiro: Learning Experiences and Social Capital

Science.gov (United States)

Scheiber, Laura

2012-01-01

The purpose of this study is to gain insight into how social entrepreneurs dedicated to violence prevention in Rio de Janeiro learn to take on the role of a social entrepreneur. Based on a two-tiered interview process with 27 social entrepreneurs in Rio de Janeiro conducted over a period of nine months, the study explores the breadth of…

Sedimentation in Rio La Venta Canyon in Netzahualcoyotl Reservoir, Chiapas, Mexico

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Juan Antonio de la Fuente; Tom Lisle; Jose Velasquez; Bonnie L. Allison; Alisha Miller

2000-01-01

Sedimentation of Rio La Venta as it enters the Netzahualcoyotl Reservoir in Chiapas, Mexico, threatens a unique part of the aquatic ecosystem. Rio La Venta enters the reservoir via a narrow canyon about 16 km long with spectacular, near-vertical limestone bluffs up to 320 m high and inhabited by the flora and fauna of a pristine tropical forest.

Diplodon shells from Northwest Patagonia as continental proxy archives: Oxygen isotopic results and sclerochronological analyses

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Soldati, A. L.; Beierlein, L.; Jacob, D. E.

2009-04-01

Freshwater mussels of the genus Diplodon (Bivalvia, Hyriidae) are the most abundant bivalve (today and in the past) in freshwater bodies at both sides of the South-Andean Cordillera. There are about 25 different Diplodon genera in Argentina and Chile that could be assigned almost completely to the species Diplodon chilensis (Gray, 1828) and two subspecies: D. ch. chilensis and D. ch. patagonicus; this latter species is found in Argentina between Mendoza (32˚ 52' S; 68˚ 51' W) and Chubut (45˚ 51' S; 67˚ 28' W), including the lakes and rivers of the target area, the Nahuel Huapi National Park (Castellanos, 1960). Despite their wide geographic distribution, Diplodon species have only rarely been used as climate archives in the southern hemisphere. Kaandorp et al. (2005) demonstrated for Diplodon longulus (Conrad 1874) collected from the Peruvian Amazonas that oxygen isotopic patterns in the shells could be used in order to reconstruct the precipitation regime and dry/wet seasonal of the monsoonal system in Amazonia. Although this study demonstrated the potential of Diplodon in climatological and ecological reconstructions in the southern hemisphere, as of yet, no systematic study of Diplodon as a multi-proxy archive has been undertaken for the Patagonian region. In this work we present sclerochronological analyses supported by ^18Oshell in recent mussel of Diplodon chilensis patagonicus (D'Orbigny, 1835) collected at Laguna El Trébol (42°S-71°W, Patagonia Argentina), one of the best studied water bodies in the region for paleoclimate analysis. Water temperature was measured every six hours for one year using a temperature sensor (Starmon mini®) placed at 5m depth in the lake, close to a mussel bank. Additionally, ^18Owater was measured monthly for the same time range.g^18Oshell values obtained by micro-milling at high spatial resolution in the growth increments of three Diplodon shells were compared to these records, and to air temperature and

A concepção de território na Saúde Mental

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Juarez Pereira Furtado

2016-10-01

Full Text Available Resumo: O termo território e seus derivados se tornaram correntes no campo da Saúde Mental desde a reforma psiquiátrica, marco de ideário não hospitalocêntrico e potencialmente emancipatório. No entanto, constatamos em pesquisa empírica anterior que a essa incorporação terminológica não corresponderam concepções e práticas coerentes de reinserção territorial de pessoas com sofrimento mental. Para esclarecer os diversos usos do termo e suas possíveis correlações na prática, realizamos um levantamento sistemático de artigos científicos e documentos oficiais, confrontando-os entre si e com o conceito de território da Geografia Crítica. Concluímos que no campo da Saúde Mental brasileira, à revelia de muitos e sempre renovados esforços críticos, tem prevalecido uma noção funcional de território, que omite relações de poder e apropriações simbólicas, aumentando a tendência de a reinserção de pessoas com sofrimento mental desembocar na sua sujeição ao território dado, em vez de favorecer transformações socioespaciais para o convívio com as diferenças.

Living in an estuary: Commerson's dolphin (Cephalorhynchus commersonii (Lacépède, 1804, habitat use and behavioural pattern at the Santa Cruz River, Patagonia, Argentina

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Rocio Loizaga de Castro

2013-11-01

Full Text Available Commerson's dolphins, Cephalorhynchus commersonii, suffer bycatch in fisheries and are target of dolphin-watching activities along Patagonia. Here we described dolphins' habitat use and behavioural pattern at the estuary of Santa Cruz River. Behavioural observations were made from vantage points using a spotting scope. Boat surveys were conducted randomly from Puerto Santa Cruz to the mouth of the river to analyze the habitat use. The survey area was divided into 1 km² cells and characterized with depth and benthic slope. The described behaviours for the Commerson's dolphin were: travelling, slow travelling, milling, resting, socializing, stationary swimming and diving. A new behavioural context was assigned to diving, a behaviour that showed a high frequency during downing tide, suggesting a benthic foraging strategy. Additionally, we found a strong influence of the tide on Commerson's dolphin behaviour. Habitat use models indicated that dolphins prefer shallow water inside the estuary. The knowledge of the behavioural patterns and the habitat use of these endemic species, in this unexplored area, provide tools for management and conservation purposes.

O Debate do Salário Mínimo no Brasil

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Sara Eloisa Vilmar da Silva Lemos

2011-04-01

Full Text Available Num contexto de estabilidade econômica, o salário mínimo pode voltar a desempenhar o seu papel original de tentar garantir ao trabalhador um salário que é o mínimo para a sua sobrevivência. Para a análise do papel do salario mínimo no mercado de trabalho brasileiro, uma resenha da literatura especifica existente parece ser um bom ponto de partida.

Resenha de 1976: Movimento Black Rio, de Luiz Felipe de Lima Peixoto e Zé Otávio Sabadelhe (Rio de Janeiro: José Olympio, 2016

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Carlos Palombini

2017-08-01

Full Text Available Lançado em 10 de novembro de 2016, o livro 1976: Movimento Black Rio, dos jornalistas Luiz Felipe de Lima Peixoto e Zé Otávio Sabadelhe, celebra os quarenta anos da manchete de Lena Frias, Black Rio: o orgulho (importado de ser negro no Brasil, publicada em 17 de julho de 1976 no Caderno B do Jornal do Brasil. Em 28 reportagens, os autores recorrem a entrevistas e material previamente publicado para contar a história da cultura de bailes que, alimentados por soul, funk e disco afro-norte-americanos, espalharam-se pela Zona Norte carioca nos anos 1970, bem como a história do conjunto das apropriações desses gêneros por Tim Maia, Toni Tornado, Hyldon, Carlos Dafé, Cassiano, Gerson King Combo, Dom Salvador e Abolição, União Black, e Banda Black Rio. O livro tenciona constituir “uma contribuição à construção discursiva de uma memória social positiva da população negra brasileira” e oferece elementos para um trabalho necessário de revisão historiográfica que transcende o âmbito do tema tratado, apesar de erros fatuais que poderiam ter sido corrigidos por cruzamento de dados.

Santuários, romarias e discipulado cristão

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Edênio Valle

2009-05-01

Full Text Available O artigo trata basicamente da romaria e dos santuários populares católicos. Nascido de uma palestra feita a reitores de santuários católicos da América Latina, o artigo enfoca também o discipulado cristão como essencial no acolhimento aos romeiros. Sua perspectiva, porém, é a das ciências da religião e não a da teologia. A abordagem leva em conta as teorias sociológicas e psicoantropológicas hoje usadas na leitura do fenômeno das romarias nas religiões em geral e no cristianismo em especial. Após um rápido olhar sobre o sentido do discipulado na teologia e na Bíblia, o autor enfoca mais especificamente a abordagem psicoantropológica hoje em uso na sociologia dos santuários e das romarias. Finalizando, tece algumas considerações sobre a pastoral dos santuários e a necessidade de inserir o acolhimento religioso dos romeiros num contexto marcado pelo chamado turismo religioso.Palavras-chave: Santuários católicos; Pastoral das romarias; Discipulado; Psicologia da religião; Turismo religioso.ABSTRACT This article focuses on a discussion about Christian discipleship in the pastoral context of popular sanctuaries of the Catholic Church in Latin America. It is a reflection presented during the Latin American Congress of Catholic Sanctuaries in Aparecida, Brazil, in 2005. It considers different questions involved in the discussion, from the viewpoint of modern psycho-anthropology of pilgrimages and sanctuaries. After a short biblical-theological explanation of the meaning of Christian discipleship in theology and in the Bible, the article attempts to show what modern Brazilian and English-speaking experts in Anthropology and Pastoral Theology think about pilgrimages both in Christian and in non-Christian religions. Finally, it discusses the sanctuaries’ pastoral and the need to insert a religious welcome to pilgrims in the context of religious tourism.Key words: Catholic sanctuaries; Pastoral of pilgrimages; Discipleship

Marcos regulatórios e inovação no transporte rodoviário de produtos perigosos: o caso das embalagens vazias de agrotóxicos

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Marne Lieggio Junior

2011-05-01

Full Text Available

Resumo: O objetivo deste trabalho é analisar a inovação provocada pelos marcos regulatórios na logística do transporte rodoviário de produtos perigosos, especificamente na logística das embalagens de agrotóxicos. O quadro teórico de referência aborda a Teoria da Inovação, a questão de marcos regulatórios, riscos no transporte rodoviário de produtos perigosos e o necessário uso de rotinas. A metodologia utilizada na confecção do trabalho teve caráter exploratório, baseando-se em revisão bibliográfica e nas práticas operacionais de mercado. Os resultados da pesquisa mostraram que, ao adaptar-se às novas exigências legais do ambiente institucional em que se insere, a cadeia logística reversa de embalagens de agrotóxicos produziu inovações em seu processo, utilizando-se de “recursos produtos não-utilizados”, rotinas e lições aprendidas em sua trajetória tecnológica.

Avaliação in vitro da atividade antiviral de extratos de plantas frente ao metapneumovirus aviário (AMPV) e vírus respiratório sincicial bovino (BRSV)

OpenAIRE

Matheus Cavalheiro Martini

2010-01-01

Resumo: Para avaliar a atividade antiviral dos extratos de plantas brasileiras foram eleitos o Metapneumovirus aviário (aMPV) e o vírus Respiratório sincicial bovino (BRSV) pertences à família Paramyxoviridae, subfamília Pneumovirinae, gêneros Metapneumovirus e Pneumovirus respectivamente. Tanto o aMPV quanto o BRSV são vírus semelhantes aos que causam doenças em humanos como o vírus respiratório sincicial humano (HRSV) e metapneumovírus humano (hMPV). O objetivo do presente trabalho foi aval...

A new pale-spotted species of Hypostomus Lacépède (Siluriformes: Loricariidae from the rio Tocantins and rio Xingu basins in central Brazil

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Cláudio H. Zawadzki

Full Text Available A new species of the genus Hypostomus Lacépède (Siluriformes, Loricariidae from rio Tocantins and rio Xingu basins in central Brazil, is described. The new species is distinguished from its congeners by a unique combination of pale blotches over a darker background on head, body and fins, and conspicuous keels on head, predorsal region and lateral plates. Comments on the pale-spotted species of Hypostomus are provided.

Repositórios Educacionais: estudos preliminares para a Universidade Aberta do Brasil

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Rosângela Schwarz Rodrigues

Full Text Available Esta pesquisa tem como proposta refletir sobre a criação de um modelo de estruturação e catalogação dos metadados para Repositórios Educacionais Abertos. De caráter exploratório e descritivo, a pesquisa utiliza de revisão bibliográfica e documental pertinente para a fundamentação e o tratamento analítico do corpus do trabalho. A pesquisa foi realizada em duas situações complementares: a o levantamento e a análise dos principais padrões de metadados (MARC 21, Dublin Core, LOM/IEEE e a ISO 19788-2, com o intuito de definir os principais campos descritores aplicáveis para Repositórios Educacionais Abertos; e b identificação dos campos descritores utilizados no Sistema Universidade Aberta do Brasil. Por meio da análise dos padrões de metadados e da identificação dos campos descritores utilizados foram identificados dois cenários: o primeiro, macro, caracteriza-se pela relação intra e extra-institucional de Repositórios Temáticos e Institucionais; o segundo, micro, baseado nos metadados descritores das unidades didáticas. Verifica-se a interdependência entre o cenário macro e micro, e a necessidade da utilização de mecanismos de padronização e controle. O modelo resultante da análise discute a uniformização no uso de vocabulários controlados para uso no maior número possível de campos, a criação de Conselhos Editoriais Temáticos, o estabelecimento de vínculos de dependência entre objetos de aprendizagem, disciplinas, cursos, autores e Instituições, o que torna possível a relação e identificação da origem dos objetos e permite sua contextualização.

Simbolismo e poder nas relações empresa-funcionário

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Fernanda Chiozzini Martins-Suarez

2016-06-01

Full Text Available A presente resenha convida o leitor a uma interpretação das relações de poder dentro de uma empresa siderúrgica, relações estas que são encontradas não apenas na dicotomia empresa-funcionário, mas também como resultado da inserção da mulher no mercado de trabalho. Entretanto, neste contexto, o peso da siderurgia se confunde com a leveza do símbolo significante construído pela empresa e representado pelo uniforme a fim de implantar na mente de seus funcionários a alegria e o prazer de trabalhar em uma companhia que tantas benesses trouxe aos seus funcionários e a cidade onde está instalada.

A influência da marca Coca Cola na atratividade e manutenção dos funcionários em uma afiliada no Rio Grande Do Sul

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Carla Cavalheiro Lima

2014-01-01

Full Text Available O estudo analisou a influência da marca Coca-Cola na atratividade e manutenção de funcionários em uma empresa afiliada de uma franqueada da The Coca-Cola Company, denominada CVI Refrigerantes Ltda., identificando o nível de conhecimento prévio dos colaboradores da empresa sobre a mesma, verificando os atributos relacionados à marca na visão destes e diagnosticando fatores considerados decisivos no momento da escolha da empresa como empregadora. Foi realizada análise documental e de entrevistas  semiestruturadas com funcionários. Constata-se que a imagem e o nome da marca Coca-Cola constituem, para os funcionários, fortes atrativos, além dos benefícios e oportunidades de crescimento oferecidos.

O futuro da democracia: cenários político-institucionais até 2022

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Souza Amaury de

2006-01-01

Full Text Available O PRESENTE artigo relata os resultados de um exercício de cenários políticos realizado pelo Instituto de Estudos Avançados (IEA-USP no quadro de um projeto mais amplo patrocinado pelo Executivo federal. Os autores traçam inicialmente um cenário positivo, caracterizado por estabilidade política, aperfeiçoamento do sistema de partidos e do Legislativo, e melhores políticas sociais. Passam, em seguida, a dois cenários negativos, nos quais aqueles objetivos dificilmente serão atingidos. Dado que a ocorrência do cenário positivo provavelmente exigirá reformas políticas substanciais, os autores analisam algumas das propostas debatidas ao longo das últimas duas décadas, notadamente as que objetivam fortalecer o sistema partidário, melhorar as relações Executivo versus Legislativo e tornar o sistema como um todo mais representativo (accountable.

Hemophilia care in the state of Rio de Janeiro, Brazil El tratamiento de la hemofilia en el estado de Rio de Janeiro, Brasil

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Eva M. A. Fontes

2003-03-01

Full Text Available In the developing countries of the world, few people with hemophilia receive adequate care. Nevertheless, Brazil has made significant advances in the treatment of hemophilia over the last decade. The provision of factor concentrates imported by the Government of Brazil is gradually increasing, and patients receive the concentrates for free. A national register was established as well as a coordinated program for comprehensive care. Of the 6 297 persons with hemophilia in Brazil who were registered as of January 2001, 689 of them (11.1% were registered in the state of Rio de Janeiro. Of those 689, 664 of them were being monitored at the state's coordinating blood transfusion center, which is located in the city of Rio de Janeiro. Among those 664, factor VIII inhibitors were identified in 81 of them (12.2%. Among 653 of the Rio de Janeiro patients who were tested for transfusion-transmitted diseases, the overall prevalence found was 41.5%, with the specific rates being 13.3% for human immunodeficiency virus (HIV, 2.9% for hepatitis B virus (HBV, and 39.4% for hepatitis C virus (HCV. The state of Rio de Janeiro has adopted a comprehensive hemophilia management approach that includes medical, psychological, and social care. As a result, the quality of life of hemophilia patients has improved noticeably. For example, the rate of hospitalization among patients fell by 30% between 1998 and 2001, and there has also been a decline in the school and work activities that they have missed.En los países en desarrollo, pocas personas con hemofilia reciben un tratamiento adecuado. No obstante, el Brasil ha logrado grandes avances en este sentido en el último decenio. La provisión de concentrados de factores de la coagulación importados por el gobierno de Brasil va aumentando gradualmente y los pacientes reciben el concentrado gratis. Un registro nacional se estableció junto con un programa coordinado de atención global. De las 6 297 personas con

Lutas pela formação científica dos professores primários no Rio de Janeiro (1880-1890 - Struggles for the primary teacher in Rio de Janeiro (1880-1890

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Ariadne Lopes Ecar

2012-08-01

Full Text Available O objetivo deste artigo consiste na análise de aspectos da configuração dos mecanismos de formação prévia de professores, por intermédio do estudo de duas escolas normais na capital do Império e na capital da Província do Rio de Janeiro, Niterói. Consideradas como indispensáveis para formar os quadros docentes que atenderiam as escolas primárias, as instituições em questão passaram por diversas reformas que procuraram alargar os programas em prol de um ensino descrito como mais científico. Os deslocamentos institucionais observados indiciam investimentos no sentido de formar o futuro professor com mais robustez. Sugerem, igualmente, a existência de tensões em torno do conteúdo e forma dessas medidas.Palavras-chave: escola normal, programas de ensino, modelo científico, formação de professores. STRUGGLES FOR THE PRIMARY TEACHER IN RIO DE JANEIRO (1880-1890AbstractThe purpose of this article is to analyze aspects of the configuration mechanisms of the initial teachers’ formation, through the study of two formations schools at the end of the nineteenth century, one in the Empire Capital and the other in the Province’s Capital of Rio de Janeiro. Considered to be indispensible to form the teaching staff who would attend primary schools, the institutions in question went through several reforms which intended to widen their programs towards a teaching described as more scientific. The institutional displacements observed show investments in a way of form the future teacher in a more robust manner, suggesting equally the presence of tensions around the content and form of these measures.Key-words: normal school, teaching programs, scientific model, teachers’ formation. LUCHAS POR LA FORMACIÓN CIENTÍFICA DE LOS MAESTROS DE PRIMARIA EN RIO DE JANEIRO (1880-1890ResumenEl objetivo de este trabajo es analizar los aspectos de la configuración de los mecanismos de la formación previa de los docentes através del estudio de

A Large Accumulation of Avian Eggs from the Late Cretaceous of Patagonia (Argentina) Reveals a Novel Nesting Strategy in Mesozoic Birds

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Fernández, Mariela S.; García, Rodolfo A.; Fiorelli, Lucas; Scolaro, Alejandro; Salvador, Rodrigo B.; Cotaro, Carlos N.; Kaiser, Gary W.; Dyke, Gareth J.

2013-01-01

We report the first evidence for a nesting colony of Mesozoic birds on Gondwana: a fossil accumulation in Late Cretaceous rocks mapped and collected from within the campus of the National University of Comahue, Neuquén City, Patagonia (Argentina). Here, Cretaceous ornithothoracine birds, almost certainly Enanthiornithes, nested in an arid, shallow basinal environment among sand dunes close to an ephemeral water-course. We mapped and collected 65 complete, near-complete, and broken eggs across an area of more than 55 m2. These eggs were laid either singly, or occasionally in pairs, onto a sandy substrate. All eggs were found apparently in, or close to, their original nest site; they all occur within the same bedding plane and may represent the product of a single nesting season or a short series of nesting attempts. Although there is no evidence for nesting structures, all but one of the Comahue eggs were half-buried upright in the sand with their pointed end downwards, a position that would have exposed the pole containing the air cell and precluded egg turning. This egg position is not seen in living birds, with the exception of the basal galliform megapodes who place their eggs within mounds of vegetation or burrows. This accumulation reveals a novel nesting behaviour in Mesozoic Aves that was perhaps shared with the non-avian and phylogenetically more basal troodontid theropods. PMID:23613776

A large accumulation of avian eggs from the late cretaceous of patagonia (Argentina) reveals a novel nesting strategy in mesozoic birds.

Science.gov (United States)

Fernández, Mariela S; García, Rodolfo A; Fiorelli, Lucas; Scolaro, Alejandro; Salvador, Rodrigo B; Cotaro, Carlos N; Kaiser, Gary W; Dyke, Gareth J

2013-01-01

We report the first evidence for a nesting colony of mesozoic birds on Gondwana: a fossil accumulation in Late Cretaceous rocks mapped and collected from within the campus of the National University of Comahue, Neuquén City, Patagonia (Argentina). Here, Cretaceous ornithothoracine birds, almost certainly Enanthiornithes, nested in an arid, shallow basinal environment among sand dunes close to an ephemeral water-course. We mapped and collected 65 complete, near-complete, and broken eggs across an area of more than 55 m(2). These eggs were laid either singly, or occasionally in pairs, onto a sandy substrate. All eggs were found apparently in, or close to, their original nest site; they all occur within the same bedding plane and may represent the product of a single nesting season or a short series of nesting attempts. Although there is no evidence for nesting structures, all but one of the Comahue eggs were half-buried upright in the sand with their pointed end downwards, a position that would have exposed the pole containing the air cell and precluded egg turning. This egg position is not seen in living birds, with the exception of the basal galliform megapodes who place their eggs within mounds of vegetation or burrows. This accumulation reveals a novel nesting behaviour in Mesozoic Aves that was perhaps shared with the non-avian and phylogenetically more basal troodontid theropods.

Simulations of Precipitation Variability over the Upper Rio Grande Basin

International Nuclear Information System (INIS)

Costigan, Keeley R.; Bossert, James E.; Langley, David L.

1997-10-01

In this research, we study Albuquerque's water and how it may be affected by changes in the regional climate, as manifested by variations in Rio Grande water levels. To do this, we rely on the use of coupled atmospheric, runoff, and ground water models. Preliminary work on the project has focused on uncoupled simulations of the aquifer beneath Albuquerque and winter precipitation simulations of the upper Rio Grande Basin. The latter is discussed in this paper

Lentes progressivas: análise dos campos intermediário e de perto por deflexometria

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Celso Marcelo Cunha

2013-02-01

Full Text Available OBJETIVO: Avaliar por deflexometria as diferentes regiões das lentes progressivas e determinar as áreas dos campos de visão intermediário e de perto. MÉTODOS: Foram incluídas vinte e duas lentes progressivas com poder +1,00 DE para longe e duas adições diferentes (adição 1,00 e 2,00, 11 de cada. Mediram-se as áreas dos campos intermediário e de perto entre as isoastigmáticas de 0,5 DC. RESULTADOS: Encontraram-se diferenças significativas entre as áreas dos campos intermediário e de perto das lentes estudadas. Entre a área do campo intermediário e a adição observou-se correlação inversa; entre a área do campo intermediário e a extensão vertical do corredor encontrou-se correlação direta. CONCLUSÃO: Com esses dados permitem-se recomendar as lentes de acordo com o campo de maior necessidade visual de cada usuário.

VANTAGENS DO ENSINO NO LABORATÓRIO DE ENFERMAGEM

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Maria Romana Friedlander

Full Text Available Revendo a literatura, a autora descreve algumas vantagens do ensino das habilidades perceptivo-motoras (ou psicomotoras no laboratório de enfermagem como treinamento anterior ao estágio em campo clínico. Os argumentos utilizados são de ordem ética (levantando a questão do erro cometido pelo aluno no cliente, de natureza psicológica, apontando os conflitos do aluno, do cliente e do professor, aspectos relacionados ao custo-benefício desse treinamento preliminar e de ordem pedagógica. Estes últimos aspectos apoiam-se nas teorias da aprendizagem perceptivo-motora que confirmam a importância do ensino no laboratório de enfermagem.

Avaliação da assistência ambulatorial a portadores de HIV/AIDS no Rio de Janeiro, segundo a visão de seus usuários

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Romeu Gomes

1999-10-01

Full Text Available Este artigo analisa a percepção de portadores de HIV/AIDS de cinco serviços especializados do Estado do Rio de Janeiro, acerca da assistência que lhes é prestada. A metodologia da pesquisa foi baseada nas abordagens quantitativa e qualitativa. Foram analisados os dados de 228 questionários, preenchidos pelos sujeitos, e 19 entrevistas semi-estruturadas. Os resultados afirmaram, de forma geral, uma avaliação positiva. Concluiu-se que esta avaliação pode estar referindo realmente a boa qualidade do atendimento prestado. No entanto, os usuários parecem ter expectativas baixas no que diz respeito ao tipo de serviço que centros públicos podem prover.

Desenvolvimento de concretos refratários multifuncionais

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Studart A. R.

2001-01-01

Full Text Available A facilidade de aplicação dos concretos tem sido uma das principais justificativas da substituição de peças moldadas por refratários monolíticos. Todavia, as inúmeras técnicas disponíveis para aplicação dos monolíticos têm resultado em uma diversificação muito acentuada das classes de concreto refratário (p. ex., vibrados, projetados, auto-escoantes, "shotcreting". Em virtude disso, há atualmente uma crescente demanda por concretos de maior versatilidade, denominados multifuncionais, que possibilitem a utilização das mais variadas técnicas para aplicação. No entanto, ainda questiona-se se a versatilidade dos concretos multifuncionais durante a aplicação também implica em benefícios com relação à etapa de mistura e ao seu desempenho a altas temperaturas. O objetivo deste trabalho é identificar os requisitos necessários para a obtenção de concretos multifuncionais, e comparar o seu comportamento reológico e resistência à fluência a quente com concretos normalmente aplicados com técnicas específicas de instalação. Os resultados indicam que a distribuição granulométrica é a principal determinante da característica multifuncional de concretos de alta alumina com ultra-baixo teor de cimento.

Estudo morfológico do sistema respiratório de quati (Nasua nasua

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vanessa cristina oliveira

2011-11-01

Full Text Available http://dx.doi.org/10.5007/2175-7925.2012v25n1p81 O objetivo deste trabalho foi descrever a morfologia macroscópica e microscopia de luz dos órgãos respiratórios do quati (Nasua nasua. Utilizou-se cinco animais provenientes do Criatório Científico CECRIMPAS (UNIfeob, os quais foram eutanasiados e fixados em solução de formaldeído a 10% para dissecação, análise e mensuração. Para microscopia de luz, os fragmentos dos órgãos respiratórios, foram processados conforme técnicas rotineiras para histologia e corados por Hematoxilina, Eosina e Azul de Toluidina. O nariz do quati está localizado em plano nasal, formato pontiagudo e voltado para cima, possui a concha etmoidal,/nasal dorsal e nasal ventral separadas pelos meatos: nasal dorsal e ventral. A laringe /possui as quatro cartilagens: aritenóide, cricoíde, epiglote e tireóide e a traqueia contém 34 anéis traqueais separados pelo ligamento traqueal, sendo internamente revestida pelo tecido epitelial pseudoestratificado ciliado. Os pulmões estão subdivididos em lobos por fissuras interlobares, o pulmão direito é dividido em quatro lobos e o esquerdo em dois, sendo este menor que o direito. Microscópicamente os brônquios primários, secundários e terciários possuem a mesma constituição de revestimento interno da traqueia. Concluímos que o aparelho respiratório do quati se assemelha aos achados descritos na literatura para os carnívoros domésticos.

Mortalidade de infantil no município do Rio de Janeiro Mortalidad Infantil en el Municipio de Rio de Janeiro Child Mortality in Rio de Janeiro City

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Lígia Neres Matos

2007-06-01

Full Text Available A taxa de mortalidade infantil é considerada indicador síntese da qualidade de vida e do nível de desenvolvimento de uma população. Este artigo analisa a evolução dessas taxas no Município do Rio de Janeiro, no período de 1979 a 2004, e as causas em 2004. Trata de estudo descritivo a partir do total de óbitos infantis e nascimentos ocorridos, utilizando-se os sistemas de informação produzidos pelo Ministério da Saúde. Para avaliação, segundo causa básica de morte, usou-se a Classificação Internacional de Doenças. As taxas de mortalidade infantil por mil nascidos vivos decresceram de 37,4 em 1979 para 15,1 em 2004, sendo o componente pós-neonatal o principal responsável por este declínio. Em 2004, as principais causas de óbito neonatais foram as afecções perinatais e as malformações congênitas; entre os óbitos pós-neonatais destacaram-se as doenças infecciosas e parasitárias, as causas mal definidas e as doenças respiratórias. Embora tenha sido observada queda da taxa de mortalidade infantil, esta não teve uma redução maior, devido ao pequeno declínio do componente neonatal precoce. Observou-se que a assistência à saúde da criança, no município do Rio de Janeiro, ainda deixa a desejar no que se refere à integralidade da assistência desde o período pré-natal.La tasa de mortalidad infantil es considerada indicador síntese de la calidad de vida y del nivel de desarrollo de una población. Este artículo analiza la evolución de esas tasas en la Ciudad del Rio de Janeiro, en el periodo de 1979 hasta 2004, y las causas en 2004. Tratase de un estudio descriptivo desde el total de fallecimientos infantiles y nacimientos ocurridos, usando los sistemas de informaciones producidos por el Ministerio de la Salud. Para la evaluación, según causa básica de muerte, fue usada la Clasificación Internacional de Enfermedades. Las tasas de mortalidad infantil por mil nacimientos vivos decrecieron de 37,4 en 1979

Relatório de Estágio em La Casa Amarilla (Barcelona)

OpenAIRE

Serrazina, Catarina Lopes

2013-01-01

Relatório de Estágio apresentado para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Práticas Culturais para Municípios Este relatório procura apresentar os resultados das 570 horas de estágio em La Casa Amarilla e lançar uma base de reflexão acerca da pertinência que entidades como aquela que acolheu o estágio possuem nas cidades que as albergam. La Casa Amarilla é uma associação cultural sem fins lucrativos, com estatuto de organização não governamental, sediada e...

Alegrias e tristezas no cotidiano de trabalho do agente comunitário de saúde: cenários de paixões e afetamentos

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Heletícia Scabelo Galavote

2013-09-01

Full Text Available O estudo busca desvendar o processo de trabalho do agente comunitário de saúde (ACS com base na teoria das afecções de Espinosa. Considera o encontro como uma unidade de análise, e pretende compreendê-lo na sua dinâmica de produção do cuidado, analisando as afecções que se expressam por alegrias e tristezas e os seus efeitos no trabalho do ACS. Trata-se de estudo exploratório-descritivo, de caráter qualitativo, realizado na Unidade Jardim Catarina, São Gonçalo, Rio de Janeiro, Brasil. Os dados foram coletados em entrevista com dez ACS's, por meio de roteiro semiestruturado e observação etnográfica. O estudo revela um ACS múltiplo, exposto às afecções das relações que mantém, variando entre o reconhecimento e a submissão às lógicas instituídas, resultando em alegria e tristeza, aumento e redução da sua potência de agir, respectivamente.

Caminhos e descaminhos do dicionário

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Adja Balbino de Amorim Barbieri Durão

2012-12-01

O dicionário tem uma longa história. Dependendo do objetivo que se tenha em mente ao fazer o resgate de sua história, pode-se dizer que as primeiras manifestações humanas relacionadas à produção de imagens e de linguagem icônica são as pinturas rupestres, as quais pertencem à época conhecida como Pré-História. Tais pinturas mostram não apenas cenas da vida diária dos homens daquele período histórico como também são consideradas, por alguns, rudimentos da escrita sistêmica e, embora não devam ser consideradas como escrita propriamente dita, foram o primeiro passo que o homem deu no caminho da escrita, podendo, assim, ser relacionadas à história dos dicionários.

Detrital zircon geochronology and provenance of the Chubut Group in the northeast of Patagonia, Argentina

Science.gov (United States)

Navarro, Edgardo L.; Astini, Ricardo A.; Belousova, Elena; Guler, M. Verónica; Gehrels, George

2015-11-01

The Chubut Group constitutes the most widespread sedimentary unit in NE Patagonia, characterized by variable-energy fluvial deposits. U-Pb analysis of detrital zircons from two sections of the Chubut Group constraint the age of the oldest sedimentary rocks in the northeast of the Somuncurá - Cañadón Asfalto Basin. In the Cañadón Williams area, at San Jorge section, 20 km NW of Telsen locality, dating of 56 detrital zircons from a medium to coarse sandstone indicated a maximum depositional age of 109 ± 1 Ma (n = 4). These sandstones were interpreted to represent shallow channels, associated with a lacustrine system. In the Telsen locality, a laser ablation analysis of 115 detrital zircons from a medium to coarse-grained sandstone, from fluvial channel facies, yielded a maximum depositional age of ca. 106 ± 1 Ma (n = 8). Both ages are consistent with volcanic events of the Barremian to Albian age in the central Patagonian Andes Region. Cathodoluminescence images of zircons from the San Jorge sample suggest an igneous origin, which is further supported by Th/U values above 0.5 in most of the grains. The distribution of the statistical modes of the main age populations of detrital zircons for the two samples [182, 185 and 189 Ma for Telsen sample (T2S) and 181 ± 1 Ma for San Jorge sample (SJS)] matches the age of the volcanic Marifil Formation. The rocks of the Marifil Formation of these ages are exposed NE to SE of the study area. The abundance of zircons of similar Jurassic ages (n = 52 for SJS and n = 105 for T2S) and the external morphology of the zircons in the sample SJS, implies a close proximity of the source area. Suggestion that the Marifil Formation was the main provenance source is also supported by northeast-southeasterly paleocurrents measured at the San Jorge and Telsen sections.

The natural gas and the possibilities of use in Rio de Janeiro State

International Nuclear Information System (INIS)

Carvalho, A.G.F. de; Almeida Luercio, C. de

1990-01-01

Although the Rio de Janeiro State owns one of Brazilian most important natural gas reserves and is responsible for 40% of country's natural gas production, the option to increase the utilization of this form of energy, in Rio, has been unexpectedly delayed. The warning that soon there will be a lack of electric power has already been given, and Rio's industrial activity, which has been growing above national average, may suffer irretrievable damages from this scarcity. Brazil is not self-sufficient as regards PLG yet, this fuel is heavily subsidized which thwarts competition in the residential market, with presently existing systems for distributing piped gas. It becomes necessary to remove barriers for obtaining resources and for incorporating PETROBRAS parallel distribution system into the State system, thus supplying the conditions for accelerating large scale use of natural gas in Rio de Janeiro. (author)

Registro do Icnogênero Ophiomorpha Lundgreen, 1891 em Depósitos da Planície Costeira (Quaternário (Quaternário do Estado do Rio de Janeiro.

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Rommulo Mendes Carvalho Barreiro

2007-07-01

Full Text Available A região dos Lagos Fluminenses, localizadano litoral norte do estado do Rio de Janeiro registradiversos episódios sedimentares relacionados com avariação do nível do mar ocorrida durante o Holoceno.Os depósitos variam desde intervalos pelíticos comcoquinas subordinadas, datados de 5.100 anos A.P. atéareias de cristas de praia com idade provavelmentemais recente. Este trabalho tem como finalidadeassinalar estes icnitos, em depósitos holocênicos dolitoral norte do estado do Rio de Janeiro, contribuindoassim com o conhecimento do registro fossílifero,pouco estudado no local. Na localidade de Fazendada Barra, município de Casimiro de Abreu, entre abase do Morro de São João e a margem esquerda doRio São João, ocorrem pacotes de arenitos maciçoscom contribuição de argila, de coloração castanhae espessura até 2m, laminação plano-paralela etroncos fossilizados. Nestes depósitos destacam-seestruturas sedimentares de preenchimento (casts,identificadas no icnogênero Ophiomorpha. Estematerial consiste de dezoito fragmentos de bastõesde composição argilosa. O sedimento é similarao depósitado no interior de tubos de crustáceos,provavelmente pertencentes ao gênero Callichirus.Os tubos são produzidos por bioturbação, comfinalidades de habitação e alimentação, sendo,portanto, classificados etologicamente comoFodinichnia. É um dos icnofósseis mais conhecidosao longo do registro geológico, e muito utilizadocomo indicador paleoambiental. Ocorrem emsubstratos inconsolidados do tipo softground,em ambientes rasos de inframaré. É o primeiroregistro de icnofósseis por bioturbação encontradona região. A presença de icnofósseis representa aexistência de organismos na paleocomunidade, quenão se preservaram na tafocenose, contribuindo cominformações paleoecológicas e paleoambientaispara o conhecimento da evolução costeira do nortedo Estado do Rio de Janeiro. Ademais, é possívelcorrelacionar estas estruturas com a

Heavy metal contents in sediments of rivers and adjacent streams to the filling of Rio Azul, Rio Azul, San Jose, Costa Rica

International Nuclear Information System (INIS)

Mora Amador, Raul Alberto

2003-01-01

In Costa Rica there are no studies that have documented the concentrations of heavy metals in river sediments, caused by point sources of pollutants, such as the deposits sites of solid waste. The potential source of heavy metals concentrations in the study area, is an active landfill, known as Relleno Sanitario de Rio Azul, which is located southeast of the city of San Jose, in Distrito de Rio Azul de La Union. The site where the landfill Rio Azul is located is composed by a sequence of volcanic materials, which could have been affected by local faulting. This fact would mean a serious threat of contamination of groundwater in the region, geological faults are therefore a highly permeable, able to get in touch the fill pollutants with some aquifer. The mass of metal deposited on the site, from 1978 to date, has been estimated between 70000-100000 tm, which it becomes environmental concern in a first order. The results of X-ray fluorescence show the presence of elements such as vanadium, chromium, magnesium, copper, zinc, rubidium, strontium, potassium, calcium, iron, titanium and yttrium, which show a trend towards more high Concentrates in the fine fraction (d [es

Condutas no tratamento do broncoespasmo no peri-operatório

OpenAIRE

Menezes, Cássio Campello de; Vieira, Joaquim Edson

2002-01-01

JUSTIFICATIVA E OBJETIVOS: Anestesiologistas podem se deparar com mais freqüência com pacientes portadores de asma dada a prevalência crescente dessa doença. O objetivo deste estudo foi investigar a diversidade de tratamentos utilizados durante o broncoespasmo no período peri-operatório. MÉTODO: Questionário enviado por correio para uma amostra estratificada originalmente composta de 108 anestesiologistas do estado de São Paulo, através da mala direta da Sociedade de Anestesiologia do Estado ...

Formação territorial e planejamento urbano: por um uso mais solidário do território de Campinas/SP

OpenAIRE

Victor Begeres Bisneto

2009-01-01

Esta dissertação oferece um estudo sobre a formação territorial do município de Campinas/SP e seu planejamento urbano partindo de instrumentais teórico-metodológicos que incluem a cartografia temática, a periodização e a história como um recurso de método. Estes, aliados a um conjunto de conceitos e categorias como o lugar, o território usado, os eventos e a solidariedade, têm por finalidade identificar qual a contribuição do planejamento urbano para os atuais usos do território. O que se not...

Oil and Gas Information Center of Rio de Janeiro Geological Survey; Criacao do Centro de Informacoes sobre Petroleo e Gas Natural do Servico Geologico do Estado do Rio de Janeiro

Energy Technology Data Exchange (ETDEWEB)

Dourado, Francisco; Serrao, Marcio; Ferreira, Ana Paula; Silva, Jose Otavio da; Chaves, Hernani [Centro de Informacoes sobre Petroleo e Gas Natural do Estado do Rio de Janeiro (CIPEG), Rio de Janeiro (Brazil)

2008-07-01

The Oil and Gas Information Center (CIPEG) of Rio de Janeiro Geological Survey concentrates data of oil and natural gas (O and G) industry in the State of Rio de Janeiro (RJ) and meet a specialist staff to work with this data. The CIPEG works in partnership with the Geology School of Rio de Janeiro State University. Its creation was motivated by the government necessity to dominate the techniques to calculate the Government take for the production of O and G front the RJ position in the national oil industry. In 2007, the Rio de Janeiro was responsible for 84% of domestic production of oil and of 91 municipalities, 86 received royalties. These resources represent substantial share in the budget of municipalities and the State, and any variation, could be bring deep impact on the economy of these counties and the State. The products of CIPEG are: a map of O and G industry in Rio de Janeiro, a Database, a GIS and a Timing of Predicting Production of O and G. These products are available through a Internet page with accompanying by graphs of the production of O and G or royalties and Web map for viewing the information in the GIS. (author)

Editorial L&E, v.9, n.2, 2015 - Dossier Rios e Cidades

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Rede Conpadre

2015-06-01

Full Text Available O Dossiê “Rios e Cidades” resulta dos trabalhos apresentados em maio de 2014 na quarta versão do Seminário ItineranteFranco-Brasileiro Rios e Cidades na História do Brasil: rio São Franciscoorganizado e ilustrado a partir do rio São Francisco e das cidades-beira Remanso, Pilão Arcado, Juazeiro, Petrolina e Paulo Afonso. Sua forma itinerante se inspira na tradição excursionista trazida ao Brasil pelos geógrafos franceses nos anos 1930 para coletar dados sobre os gêneros de vida, as paisagens, a fauna, a flora etc.. Cremos que ao elegermos questões representadas pelo espaço dos rios e das cidades em nossas itinerâncias expressamos a importância crescente que esta abordagem vem assumindo nos meios acadêmicos que tratam dessas análises sob a ótica da história social e ambiental. A realização desta versão do itinerante, no interior dos estados da Bahia e Pernambuco, região nordeste do Brasil, nos ajudou a repensar e potencializar a produção do conhecimento. Naquele momento experiências das pesquisas foram compartilhadas com colegas de outras instituições no/do Brasil e no/do exterior (França, Portugal e Estados Unidos ajudando a construir a qualidade e excelência na formação acadêmica humanizada. Nossa proposta foi fazer deste evento um ponto de convergência entre pesquisadores brasileiros e estrangeiros, pois cremos nas trocas que adquirem sentido na conjuntura intelectual e em pesquisas que possibilitem reflexões conjuntas e ocasião para o debate face ao tema operacionalmente circunscrito. A missão do IV Seminário itinerante Franco-brasileiro Rios e Cidades na História do Brasil: rio São Francisco foi refletir sobre a multiplicidade das formas de surgimento das cidades e do urbano nas regiões de fronteira do Brasil. Os rios e cidades são, de fato, objetos de reflexão a revelar saberes específicos, políticos, literários, poéticos, ecológicos, ambientais e históricos como também, objetos de produ

Estudo do padrão respiratório e movimento toracoabdominal em valvopatia mitral

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Satiko Shimada Franco

2012-11-01

Full Text Available FUNDAMENTO: pacientes com valvopatia mitral podem evoluir com congestão pulmonar, que aumenta o trabalho dos músculos respiratórios; essa sobrecarga pode alterar o padrão respiratório com predomínio do deslocamento torácico ou presença de movimentos paradoxais. OBJETIVO: a estudar o padrão respiratório e movimento toracoabdominal (MTA em pacientes com doença mitral b estudar o efeito do posicionamento nos parâmetros respiratórios c correlacionar hipertensão pulmonar com presença de incoordenação do MTA. MÉTODOS: o padrão respiratório e o MTA de pacientes com doença mitral foram avaliados por pletismografia respiratória por indutância, nas posições dorsal e sentada, durante dois minutos de respiração tranquila. Analisou-se volume corrente (Vc e tempos respiratórios e as variáveis do MTA. RESULTADOS: de 65 pacientes incluídos, 10 foram retirados, 29 participaram do grupo estenose mitral e 26 do grupo insuficiência mitral. O Vc, a ventilação pulmonar e o fluxo inspiratório médio aumentaram significantemente na posição sentada, sem diferenças entre os grupos. O MTA manteve-se coordenado entre os grupos e as posições; no entanto, cinco pacientes na posição dorsal apresentaram incoordenação (três no grupo estenose mitral; dois no grupo insuficiência mitral com correlação significante com valores de pressão de artéria pulmonar (r = 0,992, p = 0,007. CONCLUSÃO: o padrão respiratório e o MTA não apresentam diferenças entre pacientes com estenose ou insuficiência mitral. A posição sentada aumenta o Vc sem alterar os tempos respiratórios. A presença de incoordenação toracoabdominal na posição dorsal esteve associação à hipertensão pulmonar.

Musa's granite and Rio Maria's granodiorite Rb/Sr isotopic ages and geochemistry

International Nuclear Information System (INIS)

Gastal, M.C.P.; Macambira, M.J.B.; Medeiros, H.; Dall'Agnol, R.

1987-01-01

The Musa Granite and the Rio Maria Granodiorite are located at the eastern margin of the Amazonian craton, in the Rio Maria region, where a typical granite-greenstone terrain is characterized. Rb-Sr dating of six samples from different facies of Rio Maria Granodiorite furnished an age of 2564 ± 68 Ma with initial 87 Sr/ 86 Sr radio (IR) of 0.70288 ± 0.00092 (whole rock isochron; 1 ο error; MSWD = 2.26). Thirteen samples from the three facies of Musa Granite (monzogranites, syenogranites and intermediate to felsic hypabyssal rocks) gave Rb-Sr whole rock isochron with an age of 1692 ± 11 Ma and IR of 0.70777 ± 0.00023 (1 ο error, MSWD = 1.89). A preliminary attempt to individualize geochronologically the three facies was done resulting different ages and IRs. There is a coincidence between these ages and the emplacement sequence of these facies of the pluton. The actual meaning of the Rio Maria Granodiorite Rb-Sr age is still uncertain. It could be related to the end of the magmatic crystallization of the batholith as well as to the metamorphic-mylonitic event that affect it. Considering that the Jamon and Musa Granites are petrologically similar that they occur in the same area, it is interesting to note that latter is apparently a little older than the former. The IRs obtained for the two plutons are also not coincident. The isotopic Rb-Sr available data show that the exposed rocks of the Rio Maria Granodiorite have not been able to generate magmas with the compositions of the monzongranitic and the hypabyssal facies of the Musa pluton. On the other hand, rocks isotopically similar to the Rio Maria Granodiorite would theorically be able to generate the Jamon and a magma with the characteristics of the syenogranitic facies of the Musa pluton. (author) [pt

Entrepreneurship in the Engineering Curriculum: Some Initial Results of PUC-Rio's Experiment.

Science.gov (United States)

Aranha, Jose Alberto S.; Pimenta-Bueno, J. A.; Scavarda do Carmo, Luiz Carlos; da Silveira, Marcos A.

The ideal of the entrepreneurial spirit has played a key role in shaping the current reform of engineering education at the Pontificia Universidade Catolica do Rio de Janeiro (PUC-Rio). The previous paradigm of a science-based conceptual engineer has given place to what may be termed a science-based entrepreneurial engineer. This paper discusses…

Intra-metropolitan inequalities in Rio de Janeiro and the Guanabara Bay cleaning programme

DEFF Research Database (Denmark)

Ribeiro, Gustavo; Silva, Victor

2005-01-01

This paper investigates the impacts of the Guanabara Bay Cleaning Programme (GBCP) on the Rio de Janeiro urban development process. Based on the magnitude of the budget of the programme (HOW MUCH?) and its relevance to the improvement of the life quality of urban dwellers, the main discussion...... of this paper focuses on the role of GBCP in the context of the Rio de Janeiro urban trends and intra-metropolitan inequality dynamics. In studying the impact of the GBCP, we present: (a) a description of the GBCP intervention process and its goals, (b) a spatial analysis of the Rio de Janeiro Metropolitan Area...... the role of the GBCP implementation in the spatial distribution of these patterns throughout these 10 years. The conclusion builds on an analysis of the GBCP role in the current urban development process of the Rio de Janeiro Metropolitan Area, identifying its influences on the dynamics of intra...

Alfredo Ferreira Rodrigues e uma notícia histórica e descritiva do Rio Grande do Sul

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Francisco das Neves Alves

2004-01-01

Full Text Available Representando o típico "homem das letras" de seu tempo, o historiador rio-grandino Alfredo Ferreira Rodrigues constitui-se em nome emblemático da produção cultural rio-grandense, dedicando-se à carreira de historiador, colecionou dados e documentos fundamentais à reconstrução histórica riograndense-do-sul. Seja por meio de livros, ensaios, artigos de jornais ou no famoso Almanaque Literário e Estatístico do Rio Grande do Sul, periódico por ele coordenado, Ferreira Rodrigues legou um significativo manancial de informações/interpretações históricas. Recebendo a influência do contexto histórico-historiográfico no qual esteve inserido, Alfredo Ferreira Rodrigues, por sua vez, elaboraria uma série de premissas que influenciaram vários dos discursos historiográficos entabulados no cenário sul-rio-grandense. O objetivo deste trabalho é analisar algumas destas redes de influências presentes no trabalho Notícia histórica e descritiva do Estado do Rio Grande do Sul.

Critérios diagnósticos e tratamento dos distúrbios respiratórios do sono: RERA Diagnostic criteria and treatment for sleep-disordered breathing: RERA

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Luciana de Oliveira Palombini

2010-06-01

Full Text Available Na polissonografia, RERA é definido como um parâmetro respiratório que indica um despertar associado a um evento respiratório e um aumento do esforço respiratório. Inicialmente, RERA foi descrito com o uso da manometria esofágica utilizada para avaliação do esforço respiratório. Esse maior esforço respiratório ocorre como resposta a um aumento da resistência da via aérea superior, aspecto presente na fisiopatologia dos distúrbios respiratórios do sono, entre esses, SAOS e SRVAS. Posteriormente, o uso de cânula de pressão nasal foi relatado como uma maneira confiável e mais sensível que o termistor para a identificação de eventos de redução do fluxo aéreo e também como um substituto da manometria esofágica para a identificação de períodos de aumento da resistência na via aérea superior. Consequentemente, a American Academy of Sleep Medicine recomenda o uso de um dos métodos para a identificação de RERA, que é definido por um padrão de achatamento da curva inspiratória, característico da limitação ao fluxo aéreo. Embora RERA seja identificado e avaliado na pratica médica, sua padronização ainda é necessária. Portanto, recomenda-se que os laudos de polissonografia indiquem quais eventos respiratórios anormais foram considerados na avaliação do grau de gravidade do distúrbio respiratório.In polysomnography, RERA is defined as a respiratory parameter that indicates an arousal associated with a respiratory event and an increase in respiratory effort. Initially, RERA was described by means of esophageal manometry for the evaluation of respiratory effort. This greater respiratory effort occurs as a response to an increase in upper airway resistance, which is a factor present in the pathophysiology of sleep-disordered breathing, such as obstructive sleep apnea syndrome and upper airway resistance syndrome. Later, the use of a nasal pressure cannula was reported to be a reliable means of identifying

TERRITÓRIO: uma revisão teórico-conceitual

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Marcos Nicolau Santos da Silva

2015-05-01

Full Text Available Este artigo faz uma abordagem teórica e conceitual acerca do território, abordando os enfoques  material  e  simbólico-cultural.  O  objetivo  desse  trabalho  é  refletir teoricamente  sobre  as  diferentes  vertentes  conceituais  e  concepções  de  território presentes  hoje  na  Geografia.  A  metodologia  é  constituída  por  uma  revisão bibliográfica,  baseando-se  principalmente  nos  seguintes  autores:  Claude  Raffestin (1993, Rogério Haesbaert  (1995, 1997, 2006a, 2006b, 2007 e Marcos Saquet  (2007. O  arcabouço  teórico  foi  utilizado  para  dar  suporte  à  dissertação  de  mestrado intitulada: “Entre brejos, grotas e chapadas: o campesinato sertanejo e o extrativismo do pequi nos cerrados de Minas Gerais”. Dessa forma, a base teórica foi desenvolvida pensando no  território sertanejo de Minas Gerais, onde a  relação natureza-sociedade combina  materialismo  e  idealismo,  sendo  possível  estabelecer  um  diálogo  entre  as diferentes dimensões do território: natural, econômica, política e cultural. Palavras-chave: Território. Territorialidade. Material-simbólico. Abstract This  article  presents  a  theoretical  and  conceptual  approach  about  the  territory, addressing the material and symbolic-cultural approaches. The objetive of this paper is to  reflect  theoretically  on  the  different  conceptual  aspects  and  concepts  of  territory present today in geography. The methodology consists of a literature review, based on the following authors: Claude Raffestin (1993, Rogério Haesbaert (1995, 1997, 2006a, 2006b,  2007  and  Marcos  Saquet  (2007.  The  theoretical  framework  was  used  to support  dissertation  entitled:  "Among  marshes,  grotas  and  chapadas:  the  sertanejo peasantry and the extraction of the pequi in the savannas of Minas Gerais." Thus, the theoretical  basis was

Beneficiários do trabalho voluntário: uma leitura a partir da bioética Beneficiarios del trabajo voluntario: una lectura a partir de la bioética Beneficiaries of volunteering: a bioethical perspective

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Lucilda Selli

2008-12-01

Full Text Available OBJETIVO: Descrever a percepção dos voluntários sobre os beneficiários do trabalho voluntário no setor de saúde hospitalar e a influência que o tema dos benefícios exerce sobre as motivações. MÉTODOS: Estudo exploratório com abordagem qualitativa. Participaram 110 voluntários em serviços de saúde referências no tratamento de câncer no Rio de Janeiro (RJ, com coleta de dados de outubro a dezembro de 2001. Os dados foram obtidos por dois instrumentos: um questionário com perfil socioeconômico e sobre motivações para atividade voluntária; e entrevista semi-estruturada para obtenção de dados complementares. RESULTADOS: A visão dos voluntários sobre os beneficiários da atividade voluntária esteve centrada mais freqüentemente no paciente (50,5%, no voluntário (41,9% e na instituição e sociedade (7,6%. Paciente e voluntário foram considerados simultaneamente beneficiários, sendo o voluntário o que mais recebe benefícios. Foi relatada também uma compreensão do benefício social dessa atividade. CONCLUSÕES: Constatou-se que existe, entre os voluntários, uma noção da importância social do seu trabalho voluntário, faltando uma articulação maior entre motivações individuais e trabalho voluntário como espaço de enfrentamento de problemas sociais.OBJETIVO: Describir la percepción de los voluntarios sobre los beneficiarios del trabajo voluntario en el sector de salud hospitalaria y la influencia que el tema de los beneficios ejerce sobre las motivaciones. MÉTODOS: Se efectuó estudio exploratorio con abordaje cualitativo. Participaron 110 voluntarios en servicios de salud de referencia en el tratamiento de cáncer en la ciudad de Rio de Janeiro (Sureste de Brasil, con colecta de datos de octubre a diciembre de 2001. Los datos fueron obtenidos por dos instrumentos: un cuestionario con perfil socioeconómico y sobre motivaciones para actividad voluntaria; y entrevista semi-estructurada para la obtención de

CONDIÇÃO AUDITIVA DE FREQUENTADORES DE GRUPOS DE APOIO A EXUSUÁRIOS DE DROGAS

OpenAIRE

Tainara Milbradt Weich

2012-01-01

O presente trabalho tem como objetivo verificar a condição auditiva de frequentadores de grupos de apoio a ex-usuários de drogas. Foram avaliados 17 indivíduos ex-usuários de drogas, estando entre as mais usadas a maconha, o crack e a cocaína. Os indivíduos foram divididos em dois grupos, conforme o tipo de droga mais consumida: Grupo 1 (G1) 10 ex-usuários de maconha; Grupo 2 (G2) sete ex-usuários de crack/cocaína. Para a análise dos resultados, houve uma subdivisão confor...

FUNÇÃO ADMINISTRATIVA DA ENFERMEIRA NO BERÇÁRIO

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Doroty Leite Barbieri

Full Text Available As autoras fazem considerações a respeito do Serviço de Neonatologia e dão enfoque especial ao Berçário, como um local físico integrante desse Serviço, destacando o papel de importância fundamental da enfermeira na equipe multidisciplinar. Dentre as várias funções da enfermeira neonatologista, as autoras descrevem, neste trabalho, as relacionadas com as atividades administrativas nos berçários de recém-nascidos.