Upper Holocene in a profile:tectonic depression of Conlara-Sierra de San Luis, San Luis, Argentina

International Nuclear Information System (INIS)

Strasser, E.; Chiesa, J.

2004-01-01

The characteristics of three column profiles belonging to eolic sediments, assignated to Upper Holocene of the Depression of Conlara and oriental edge of San Luis range, comprising loessic materials and sandy loessoides, associated to aluvio-eolic and pedogenetic levels are texturally described. Lineal graphics of expression are used to visualize the textual variations according to the deph, those graphics are built according to the curve of frequency accumulated of the distribution of the size, using the parameters of rank in phi (Q) intervals and the half diameter expressed in microns. The interpretation of the succession in ecuatorial direction allows the inferences of the decrease of the size of grain from the planicie (on the east) towards the mountain region (on the west). The values of parameters of rank and statistiral parameters are presented, of all the succession although it is proposed that the Upper Holocene corresponds to the two upper meters [es

33 CFR 80.1130 - San Luis Obispo Bay, CA.

Science.gov (United States)

2010-07-01

... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false San Luis Obispo Bay, CA. 80.1130 Section 80.1130 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY INTERNATIONAL NAVIGATION RULES COLREGS DEMARCATION LINES Pacific Coast § 80.1130 San Luis Obispo Bay, CA. A line drawn from...

Provencance of the late Proterozoic to early Cambrian metaclastic sediments ot the Sierra de San Luis (Eastern Sierras Pampeanas) and Cordillera Oriental, Argentina

DEFF Research Database (Denmark)

Drobe, M.; López de Luchi, M.; Steenken, A.

2009-01-01

Provenance studies have been performed utilising major and trace elements, Nd systematics, whole rock Pb-Pb isotopes and zircon U/Pb SHRIMP data on metasedimentary rocks of the Sierra de San Luis (Nogolí Metamorphic Complex, Pringles Metamorphic Complex, Conlara Metamorphic Complex and San Luis...... is depicted for all the complexes using major and trace elements. The Pringles Metamorphic Complex shows indications for crustal recycling, pointing to a bimodal provenance. Major volcanic input has to be rejected due to Th/Sc, Y/Ni and Cr/V ratios for all units. The eNd(540 Ma) data is lower for the San Luis...... Formation and higher for the Conlara Metamorphic Complex, as compared to the other units, in which a good consistency is given. This is similar to the TDM ages, where the metapsammitic samples of the San Luis Formation are slightly older. The spread of data is largest for the Pringles Metamorphic Complex...

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...

Sm-Nd, Rb-Sr and K-Ar age constraints of the El Molle and Barroso plutons, western Sierra de San Luis, Argentina

International Nuclear Information System (INIS)

Sato, A.M.; Gonzalez, P.D; Petronilho, L.A; Llambias, E.J.; Varela, R; Basei, M.A.S

2001-01-01

Within the Early Paleozoic Famatinian orogeny of Southern Sierras Pampeanas (Sierra de San Luis and Sierra de Cordoba), the post-orogenic granitoids are characterized by circular intrusions. The published Rb-Sr and K-Ar ages from plutons in the Sierra de San Luis range between 408 and 320 Ma (see synthesis in Llambias et al., 1998). The El Molle and Barroso plutons (Sims et al., 1997; Gonzalez and Sato, 2000) are the two main exposures of a post-orogenic intrusive complex located in the western area of the Sierra de San Luis basement. They also exhibit an overall circular map view of almost 8 km in diameter, and are emplaced in a metamorphic complex developed through pre-Famatinian (Proterozoic? to Early Paleozoic) to Famatinian (Early Paleozoic) orogenies (Gonzalez and Llambias, 1998; von Gosen and Prozzi, 1998). We are carrying out isotopic datings of the El Molle and Barroso plutons in order to contribute to the understanding of the magmatic and metamorphic evolution of the final stages of the Famatinian orogenic cycle in the Sierra de San Luis. The first results of the Sm-Nd, Rb-Sr and K-Ar dates are here presented (au)

El basamento de la sierra de San Luis: Nuevas evidencias magnéticas y sus implicancias tectónicas The basement of Sierra de San Luis: New magnetic evidence and tectonic implication

OpenAIRE

CJ Chernicoff; VA Ramos

2003-01-01

Los mapas aeromagnéticos disponibles de las sierras de San Luis y Comechingones en el sector sudoriental de las Sierras Pampeanas de Argentina, permiten examinar las características geológicas y estructurales de las unidades metamórficas e intrusivas del basamento de la región. A través de la aplicación del filtro de continuación ascendente a los datos del campo magnético total reducido al polo, se ha podido observar la configuración profunda de las distintas unidades. Entre ellas se destaca ...

75 FR 59285 - Endangered and Threatened Wildlife and Plants; Permit, San Luis Obispo County, CA

Science.gov (United States)

2010-09-27

...] Endangered and Threatened Wildlife and Plants; Permit, San Luis Obispo County, CA AGENCY: U.S. Fish and... project in the community of Los Osos, San Luis Obispo County, California. We invite comments from the... community of Los Osos, San Luis Obispo County, California. The parcel is legally described as Assessor...

Geologic Map of the San Luis Quadrangle, Costilla County, Colorado

Science.gov (United States)

Machette, Michael N.; Thompson, Ren A.; Drenth, Benjamin J.

2008-01-01

The map area includes San Luis and the primarily rural surrounding area. San Luis, the county seat of Costilla County, is the oldest surviving settlement in Colorado (1851). West of the town are San Pedro and San Luis mesas (basalt-covered tablelands), which are horsts with the San Luis fault zone to the east and the southern Sangre de Cristo fault zone to the west. The map also includes the Sanchez graben (part of the larger Culebra graben), a deep structural basin that lies between the San Luis fault zone (on the west) and the central Sangre de Cristo fault zone (on the east). The oldest rocks exposed in the map area are the Pliocene to upper Oligocene basin-fill sediments of the Santa Fe Group, and Pliocene Servilleta Basalt, a regional series of 3.7?4.8 Ma old flood basalts. Landslide deposits and colluvium that rest on sediments of the Santa Fe Group cover the steep margins of the mesas. Rare exposures of the sediment are comprised of siltstones, sandstones, and minor fluvial conglomerates. Most of the low ground surrounding the mesas and in the graben is covered by surficial deposits of Quaternary age. The alluvial deposits are subdivided into three Pleistocene-age units and three Holocene-age units. The oldest Pleistocene gravel (unit Qao) forms extensive coalesced alluvial fan and piedmont surfaces, the largest of which is known as the Costilla Plain. This surface extends west from San Pedro Mesa to the Rio Grande. The primary geologic hazards in the map area are from earthquakes, landslides, and localized flooding. There are three major fault zones in the area (as discussed above), and they all show evidence for late Pleistocene to possible Holocene movement. The landslides may have seismogenic origins; that is, they may be stimulated by strong ground shaking during large earthquakes. Machette and Thompson based this geologic map entirely on new mapping, whereas Drenth supplied geophysical data and interpretations.

Relevamiento de vectores de la Enfermedad de Chagas en peridomicilios del área rural del Departamento Ayacucho, San Luis, Argentina

Directory of Open Access Journals (Sweden)

Diego I. CHARTIER

2007-01-01

Full Text Available Debido a la importancia de las poblaciones peridomésticas en los procesos de reinfestación de las viviendas, el objetivo de este trabajo fue evaluar la presencia de triatominos en peridomicilios de la comuna de San Francisco del Monte de Oro, Dpto. Ayacucho, San Luis, Argentina. Se evaluó la presencia de triatominos en 18 peridomicilios entre los meses de Octubre a Marzo (2003/2004, para cada anexo se analizó: tipo de construcción, hospedador y número de triatominos. Los triatominos capturados fueron determinados taxonómicamente y se analizó su infectividad. El 98,3 % de los triatominos pertenecieron a la especie Triatoma infestans (Klug. El 79,3 % de los anexos evaluados fueron positivos. Los índices de infestación para corrales y gallineros fueron de 94,4? % y 54,5? %, respectivamente. No se encontraron insectos infectados con Trypanosoma cruzi (Chagas. Los corrales se diferenciaron en: pirca, empalizada y troncos apilados horizontalmente. En cuanto al número de triatominos, sólo se halló diferencia significativa entre los corrales de pirca y empalizada, siendo el primero mayor (p< 0,05. Los corrales de pirca parecen ser los más aptos para refugios de los triatominos, probablemente debido a la gran cantidad de espacios vacíos que ofrece y a una mayor dificultad para el control químico.

Magnetotelluric data collected to characterize aquifers in the San Luis Basin, New Mexico

Science.gov (United States)

Ailes, Chad E.; Rodriguez, Brian D.

2015-01-01

The U.S. Geological Survey is conducting a series of multidisciplinary studies of the San Luis Basin as part of the Geologic Framework of Rio Grande Basins project. Detailed geologic mapping, high-resolution airborne magnetic surveys, gravity surveys, magnetotelluric surveys, and hydrologic and lithologic data are being used to better understand the aquifers in the San Luis Basin. This report describes one north-south and two east-west regional magnetotelluric sounding profiles, acquired in June of 2010 and July and August of 2011, across the San Luis Basin in northern New Mexico. No interpretation of the data is included.

76 FR 41811 - Kellaway Proposed Low-Effect Habitat Conservation Plan for the Morro Shoulderband Snail, San Luis...

Science.gov (United States)

2011-07-15

...] Kellaway Proposed Low-Effect Habitat Conservation Plan for the Morro Shoulderband Snail, San Luis Obispo... species in the community of Los Osos, San Luis Obispo County, California. The applicants would implement a... Los Osos, San Luis Obispo County, California. The applicants are requesting a permit for take of Morro...

75 FR 17430 - Hopper Mountain, Bitter Creek, and Blue Ridge National Wildlife Refuges, Kern, San Luis Obispo...

Science.gov (United States)

2010-04-06

...] Hopper Mountain, Bitter Creek, and Blue Ridge National Wildlife Refuges, Kern, San Luis Obispo, Tulare... Wildlife Refuges (NWRs) located in Kern, San Luis Obispo, Tulare, and Ventura counties of California. We... developing a CCP for Hopper Mountain, Bitter Creek, and Blue Ridge NWRs in Kern, San Luis Obispo, Tulare, and...

DNA fingerprinting by ERIC-PCR for comparing Listeria spp. strains isolated from different sources in San Luis: Argentina Caracterización molecular por ERIC-PCR de cepas de Listeria spp. aisladas de diversos orígenes en San Luis: Argentina

Directory of Open Access Journals (Sweden)

A. Laciar

2006-04-01

Full Text Available In this study, a total of 24 Listeria spp. strains were analyzed. Twenty-two isolates were obtained in San Luis (Argentina from human, animal, and food samples. Two types of strains, Listeria monocytogenes CLIP 22762 and Listeria innocua CLIP 74915, were included as reference strains. All isolates were biochemically identified and characterized by serotyping, phage typing, and amplification of the flaA gene by polymerase chain reaction (PCR. Repetitive intergenic consensus (ERIC sequence-based PCR was used to generate DNA fingerprints. On the basis of ERIC-PCR fingerprints, Listeria spp. strains were divided into three major clusters matching origin of isolation. ERIC-PCR fingerprints of human and animal isolates were different from those of food isolates. In addition, groups I and II included ten L. monocytogenes strains, and only one Listeria seeligeri strain. Group III included nine L. innocua strains and four L. monocytogenes strains. Computer evaluation of ERIC-PCR fingerprints allowed discrimination between the tested serotypes 1/2b, 4b, 6a, and 6b within each major cluster. The index of discrimination calculated was 0.94. This study suggests that the ERIC-PCR technique provides an alternative method for the identification of Listeria species and the discrimination of strains within one species.En este estudio se analizaron 24 cepas de Listeria spp. De ellas, 22 fueron obtenidas en San Luis (Argentina, a partir de muestras humanas, de animales y alimentos. Se incluyeron 2 cepas de referencia Listeria monocytogenes CLIP 22762 y Listeria innocua CLIP 74915. Todos los aislamientos fueron identificados bioquímicamente y caracterizados por serotipificación, fagotipificación y detección del gen flaA por reacción en cadena de la polimerasa (PCR. Se generaron perfiles de bandas de ADN mediante la amplificación de secuencias repetitivas de consenso intergénico de enterobacterias (ERIC-PCR. De acuerdo a los resultados obtenidos por ERIC

78 FR 73557 - Guadalupe-Nipomo Dunes National Wildlife Refuge, San Luis Obispo County, CA: Intent To Prepare a...

Science.gov (United States)

2013-12-06

...-FF08R00000] Guadalupe-Nipomo Dunes National Wildlife Refuge, San Luis Obispo County, CA: Intent To Prepare a...) for the Guadalupe-Nipomo Dunes National Wildlife Refuge located in San Luis Obispo County of... (Refuge) in San Luis Obispo County, California. This notice complies with our CCP policy to (1) advise...

Encefalitis por virus San Luis en la Ciudad de Buenos Aires durante el brote de dengue 2009

Directory of Open Access Journals (Sweden)

Horacio López

2011-06-01

Full Text Available Se presenta un paciente de 80 años de edad, residente en la Ciudad de Buenos Aires, con diagnóstico serológico para el virus de la encefalitis de San Luis (SLE durante el brote de dengue ocurrido entre enero y mayo de 2009. Presentaba leucemia linfoide crónica en tratamiento con clorambucilo, cáncer de próstata tratado con hormonoterapia y radioterapia, e imágenes óseas compatibles con metástasis. El estudio del líquido cefalorraquídeo demostró pleocitosis con predominio de mononucleares y proteinorraquia elevada. El resultado de los cultivos para bacterias, hongos y micobacterias, así como el PCR en LCR para herpes virus, HSV, CMV y EBV, fue negativo. Se detectaron anticuerpos IgM para virus SLE tanto en LCR como en muestra de suero, con seroconversión IgG por neutralización en cultivos celulares y resultados negativos para los demás Flavivirus con circulación en Argentina. Se revisan evidencias sobre la presencia de virus de San Luis en nuestro país, y se señala la importancia de la confirmación diagnóstica y el estudio de otros Flavivirus en casos sospechosos de dengue con presentación grave o atípica. Este trabajo remarca la necesidad de fortalecer tanto la vigilancia epidemiológica del virus SLE, como el control vectorial para prevenir las diferentes infecciones transmitidas por mosquitos y conocer su efecto en Salud Pública en la Argentina.

Measurement of radon concentration in old metalliferous mines in San Luis, Argentina

Energy Technology Data Exchange (ETDEWEB)

Anjos, Roberto M.; Lacerda, Tiago; Rosas, Juan P. de [Instituto de Fisica, Universidade Federal Fluminense, Av. Gal Milton Tavares de Souza, s/no, Gragoata, 24210-346, Niteroi, RJ (Brazil); Da Silva, Almy A.R. [Instituto de Fisica, Universidade Federal Fluminense, Av. Gal Milton Tavares de Souza, s/no, Gragoata, 24210-346, Niteroi, RJ (Brazil); Instituto de Fisica, Universidade de Sao Paulo, P. O. Box 66318, 05314-970, Sao Paulo, SP (Brazil); Rizzotto, Marcos; Valladares, Diego L.; Velasco, Hugo [GEA, Instituto de Matematica Aplicada San Luis (IMASL), Universidad Nacional de San Luis, Consejo Nacional de Investigaciones Cientificas y Tecnicas, Ej. de los Andes 950, D5700HHW San Luis (Argentina); Yoshimura, Elisabeth M. [Instituto de Fisica, Universidade de Sao Paulo, P. O. Box 66318, 05314-970, Sao Paulo, SP (Brazil)

2014-07-01

Radon levels in two old mines in San Luis, Argentina, were measured and analyzed. La Carolina gold mine and Los Condores tungsten mine are today used as tourism mines. CR-39 nuclear track detectors were used for this purpose. Measurements were performed during both winter and summer seasons. The findings show that in these environments, significant radon concentrations are subject to large seasonal fluctuations, due to the strong dependence on natural ventilation with the outside temperature variations. For both mines, high concentration values of {sup 222}Rn were observed in summer and low values in winter; with an extreme ratio of 2.5 times between summer and winter seasons for Los Condores mine. The radiation dose and environmental health risk of {sup 222}Rn concentrations to both guides and visitors were estimated for both seasons and compared with dose and action level values recommended by the International Commission on Radiological Protection (ICRP). The radon contribution to the effective dose rate for visitors has been previously assessed for the warm season. The values are 0.38±0.07 mSv y{sup -1} and 0.05±0.02 mSv y{sup -1} for La Carolina and Los Condores, respectively. These values were obtained assuming an accumulated annual time underground of 20 h. For the guides these values are 11±2 mSv y{sup -1} and 1.45±0.5 mSv y{sup -1} for La Carolina and Los Condores, respectively, assuming an accumulated annual time underground of 600 h. The occupational dose rate limit suggested by the ICRP is 20 mSv y{sup -1}. As these values indicate the dose is an order of magnitude lower in Los Condores than La Carolina mine. This is because this mine, due to its characteristics, is more ventilated than La Carolina mine. This is important because actions can be taken to lower the radon accumulation in La Carolina gold mine, for example by opening new ducts to increase air circulation. Finally, in this work, seasonal variations of the dose rate are assessed and

Depósitos epitermales de baja sulfuración ricos en sulfuros de metales base, distrito aurífero La Carolina, San Luis, Argentina

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Gallard-Esquivel María Cecilia

2011-12-01

Full Text Available Low-sulfidation epithermal base-metal sulfide-rich deposits, La Carolina gold-bearing district,San Luis, Argentina. La Carolina gold-bearing district is located at the western end of the Metallogenetic Belt of San Luis, which is spatially and genetically related to the mesosilicic volcanism of mio-pliocene age. The volcanic arc experienced an eastward migration, due to the flattening of the Nazca plate in the segment 27°-33°S, known as the Pampean flat-slab. At La Carolina, the volcanic activity occurred between 8.2 and 6.3 Ma. It encompasses lavas and pyroclastics of andesitic, dacitic, latitic and trachytic composition. The mesosilicic magmas belong to normal to high-k calc-alkaline and shoshonitic suites. Structural analysis shows that previous structures have strongly controlled the emplacement of volcanic rocks and related mineral deposits at La Carolina allowing to define a pullapart.In this gold-bearing district there are eigth small mineralized prospects. The mineralogy consists of pyrite, arsenic rich pyrite, galena, sphalerite, marcasite, melnikovite, chalcopyrite, pyrrhotite, arsenopyrite, tennantitetetrahedrite, digenite, covellite, bornite, pyrargiryte, hessite, silvanite, pearceite, argirodite, gold, silver, greigite, boulangerite, jamesonite and electrum. The gangue consists of quartz, calcite, chalcedony and minor adularia.The hydrothermal alteration is widespread and comprise phyllic and argillic mineral assemblages characterized by sericite, illite, interstratified I/S, and silicic; propylitic alteration is also present as an outer halo. Fluid inclusions studies show that the formation temperatures range between 230º to 330º C. Boiling and mixing with meteoric water led to mineral precipitation. Based on the mineralogy, textures, hydrothermal alteration, formation temperatures,fluid chemistry and prospective geochemistry the mineralizations have been classified as low-sulfidation epithermal base-metal sulfide-rich deposits.

Geochemistry of uranium in ground waters of the Conlara river Valley, San Luis and Cordoba provinces (Argentina)

International Nuclear Information System (INIS)

Nicolli, H.B.; Gamba, M.A.

1979-01-01

Geochemical characteristics of ground waters related with lixiviation, transport and precipitation of uranium in the Conlara river valley (provinces of San Luis and Cordoba (Argentina)) are studied. Anions and cations' distributions, together with hardness, specific conductivity, pH, Eh, and uranium and vanadium contents, have been studied. Those parameters characterize four hidrogeochemical facies along an E-W profile: a calcic strong bicarbonate facies, an alkaline-calcic bicarbonate facies, an alkaline sulfate facies, and a strong alkaline sulfate facies. An ''Interphase zone'' (transition from bicarbonate water to sulfate water), where changes in composition may define a geochemical environment capable of UO2 precipitation, has been determined. The chemical-Thermodynamic studies give a dominance of UDC and UTC complexs ions (even in sulfate waters), so they represent the 99% of present ions. Besides, the calculated values required for equilibrium with uraninite or carnotite resulted much greater than those obtained in the performed experiments. It means that the precipitation of those minerals requires either the presence of greate amounts of uranium or vanadium, or a reducing environment with Eh values smaller than the observed ones. Finally, the steps to be taken in future investigations are suggested in view to a drilling plan where: 1) Priority to the ''Interphase zone'' areas is given. 2) The deepest aquifers in Tertiary sediments of the basin have to be reached in order to get the convenient environmental conditions (i.e. smallest Eh values) for uranium or uranium-vanadium precipitation. (author) [es

El basamento de la sierra de San Luis: Nuevas evidencias magnéticas y sus implicancias tectónicas

OpenAIRE

CJ Chernicoff; VA Ramos

2003-01-01

Los mapas aeromagnéticos disponibles de las sierras de San Luis y Comechingones en el sector sudoriental de las Sierras Pampeanas de Argentina, permiten examinar las características geológicas y estructurales de las unidades metamórficas e intrusivas del basamento de la región. A través de la aplicación del filtro de continuación ascendente a los datos del campo magnético total reducido al polo, se ha podido observar la configuración profunda de las distintas unidades. Entre ellas se destaca ...

Geothermal resource assessment of western San Luis Valley, Colorado

Energy Technology Data Exchange (ETDEWEB)

Zacharakis, Ted G.; Pearl, Richard Howard; Ringrose, Charles D.

1983-01-01

The Colorado Geological Survey initiated and carried out a fully integrated assessment program of the geothermal resource potential of the western San Luis Valley during 1979 and 1980. The San Luis Valley is a large intermontane basin located in southcentral Colorado. While thermal springs and wells are found throughout the Valley, the only thermal waters found along the western part of the Valley are found at Shaw Warm Springs which is a relatively unused spring located approximately 6 miles (9.66 km) north of Del Norte, Colorado. The waters at Shaws Warm Spring have a temperature of 86 F (30 C), a discharge of 40 gallons per minute and contain approximately 408 mg/l of total dissolved solids. The assessment program carried out din the western San Luis Valley consisted of: soil mercury geochemical surveys; geothermal gradient drilling; and dipole-dipole electrical resistivity traverses, Schlumberger soundings, Audio-magnetotelluric surveys, telluric surveys, and time-domain electro-magnetic soundings and seismic surveys. Shaw Warm Springs appears to be the only source of thermal waters along the western side of the Valley. From the various investigations conducted the springs appear to be fault controlled and is very limited in extent. Based on best evidence presently available estimates are presented on the size and extent of Shaw Warm Springs thermal system. It is estimated that this could have an areal extent of 0.63 sq. miles (1.62 sq. km) and contain 0.0148 Q's of heat energy.

75 FR 76726 - San Luis Solar, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes Request...

Science.gov (United States)

2010-12-09

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. ER11-2196-000] San Luis Solar, LLC; Supplemental Notice That Initial Market- Based Rate Filing Includes Request for Blanket... proceeding of San Luis [[Page 76727

Origen, protagonistas y alianzas. El Banco de San Luis Potosí, 1897-1916

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Moisés Gámez Rodriguez

2017-04-01

Full Text Available En este trabajo se expone el origen de la banca en San Luis Potosí, cuyo estudio se centra a partir de la legislación bancaria de 1897, que representa históricamente la institucionalización y modernización de la empresa bancaria mexicana. Como punto de partida se plantea que los perfiles financieros y empresariales de los involucrados en el nacimiento del Banco de San Luis Potosí, y representados en los miembros de su Consejo de Administración, son importantes para entender la configuración del sistema, y también que las redes extendidas en torno a dicha empresa muestran prácticas financieras de la economía de México en el último cuarto del siglo XIX. _________________________ This article explains the origin of banking in San Luis Potosi from the legislation in 1897, which historically represents the institutionalization and modernization of Mexican banking companies. As a starting point, it argues that financial and business profiles of those involved in the birth of Bank of San Luis Potosi and represented in the Board of Directors are important to understand the system configuration. Furthermore, the networks extended around the banking company show financial practices of Mexican economy in the last quarter of the 19th century.

Distribución del ocelote (Leopardus pardalis en San Luis Potosí, México Distribution of the ocelot (Leopardus pardalis in San Luis Potosí, Mexico

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Jesús Manuel Martínez-Calderas

2011-09-01

Full Text Available Para definir la distribución geográfica del ocelote en el estado de San Luis Potosí, México, se obtuvieron nuevos registros de la especie. El estudio se realizó de enero de 2007 a abril de 2009. Se obtuvieron 41 registros de ocelotes por medio de entrevistas y trampeo-fotográfico. Los registros se localizaron en comunidades vegetales de selva baja caducifolia (37%, matorral submontano (22%, bosque de encino (15%, selva mediana (10%, selva alta perennifolia, bosque mesófilo de montaña, bosque de pino-encino y matorral desértico micrófilo (10%. La presencia de ocelotes se ubicó en los municipios de Ciudad del Maíz, El Naranjo, Cerritos, Guadalcázar, San Nicolás Tolentino y Ciudad Valles en de elevaciones de 38 a 2 400 m snm. Los resultados de esta investigación sugieren una distribución del ocelote más hacia el oeste del estado respecto a su distribución original. El presente estudio definió nuevas regiones con presencia de ocelotes que pueden ser consideradas en el desarrollo de estrategias de conservación de la especie en el estado de San Luis Potosí.To determine the geographic distribution of ocelot in the state of San Luis Potosí, Mexico, we obtained new records. The study was conducted from January 2007 to April 2009. We recorded 41 ocelot records by interviews and camera-trapping. Ocelots records were located in tropical deciduous forest (37%, semitropical thornscrub (22%, oak forest (15%, tropical forest (10%, tall tropical deciduous forest, desert scrub, pine-oak forest and clouded forest (10%. Ocelot records were located in the municipalities of Ciudad del Maíz, El Naranjo, Cerritos, Guadalcazar, San Nicolás Tolentino and Ciudad Valles where the elevation ranged from 38 to 2 400 m. The evidence of this research suggests that ocelot range is more extended to the west than its original geographical range. This study defined new regions with presence of ocelots that may be considered to develop conservation strategies

Port San Luis, California Tsunami Forecast Grids for MOST Model

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — The Port San Luis, California Forecast Model Grids provides bathymetric data strictly for tsunami inundation modeling with the Method of Splitting Tsunami (MOST)...

Amphibians and reptiles of the state of San Luis Potosí, Mexico, with comparisons with adjoining states.

Science.gov (United States)

Lemos-Espinal, Julio A; Smith, Geoffrey R; Woolrich-Piña, Guillermo A

2018-01-01

A summary of the species of amphibians and reptiles of the state has been compiled, including their geographic distributions, habitats, and conservation statuses. The herpetofauna of San Luis Potosí consists of 41 species of amphibians and 141 species of reptiles. San Luis Potosí shares the highest number of species with Hidalgo and Tamaulipas, and the least number of species with Nuevo León. In San Luis Potosí, there are several taxa of particular conservation concern including salamanders, emydid and trionychid turtles, anguid and xenosaurid lizards, and natricid and colubrid snakes.

75 FR 8735 - Endangered and Threatened Wildlife and Plants; Permit, San Luis Obispo County, CA

Science.gov (United States)

2010-02-25

...] Endangered and Threatened Wildlife and Plants; Permit, San Luis Obispo County, CA AGENCY: Fish and Wildlife... Luis Obispo County, California. We invite comments from the public on the application, which includes a... Luis Obispo County, California, that will meet Americans with Disabilities Act (ADA) accessibility...

78 FR 16569 - Iowa Pacific Holdings, LLC, Permian Basin Railways, and San Luis & Rio Grande Railroad-Corporate...

Science.gov (United States)

2013-03-15

... DEPARTMENT OF TRANSPORTATION Surface Transportation Board [Docket No. FD 35721] Iowa Pacific Holdings, LLC, Permian Basin Railways, and San Luis & Rio Grande Railroad--Corporate Family Transaction... subsidiaries Permian Basin Railways (PBR) and San Luis & Rio Grande Railroad (SLRG), and Massachusetts Coastal...

Amphibians and reptiles of the state of San Luis Potosí, Mexico, with comparisons with adjoining states

Science.gov (United States)

Lemos-Espinal, Julio A.; Smith, Geoffrey R.; Woolrich-Piña, Guillermo A.

2018-01-01

Abstract A summary of the species of amphibians and reptiles of the state has been compiled, including their geographic distributions, habitats, and conservation statuses. The herpetofauna of San Luis Potosí consists of 41 species of amphibians and 141 species of reptiles. San Luis Potosí shares the highest number of species with Hidalgo and Tamaulipas, and the least number of species with Nuevo León. In San Luis Potosí, there are several taxa of particular conservation concern including salamanders, emydid and trionychid turtles, anguid and xenosaurid lizards, and natricid and colubrid snakes. PMID:29731682

76 FR 31678 - San Luis & Rio Grande Railroad-Continuance in Control Exemption-Saratoga and North Creek Railway...

Science.gov (United States)

2011-06-01

... DEPARTMENT OF TRANSPORTATION Surface Transportation Board [Docket No. FD 35499] San Luis & Rio Grande Railroad--Continuance in Control Exemption--Saratoga and North Creek Railway, LLC San Luis & Rio Grande Railroad (SLRG), a Class III rail carrier, has filed a verified notice of exemption to continue in...

Geomorphic evolution of the San Luis Basin and Rio Grande in southern Colorado and northern New Mexico

Science.gov (United States)

Ruleman, Chester A.; Machette, Michael; Thompson, Ren A.; Miggins, Dan M; Goehring, Brent M; Paces, James B.

2016-01-01

The San Luis Basin encompasses the largest structural and hydrologic basin of the Rio Grande rift. On this field trip, we will examine the timing of transition of the San Luis Basin from hydrologically closed, aggrading subbasins to a continuous fluvial system that eroded the basin, formed the Rio Grande gorge, and ultimately, integrated the Rio Grande from Colorado to the Gulf of Mexico. Waning Pleistocene neotectonic activity and onset of major glacial episodes, in particular Marine Isotope Stages 11–2 (~420–14 ka), induced basin fill, spillover, and erosion of the southern San Luis Basin. The combined use of new geologic mapping, fluvial geomorphology, reinterpreted surficial geology of the Taos Plateau, pedogenic relative dating studies, 3He surface exposure dating of basalts, and U-series dating of pedogenic carbonate supports a sequence of events wherein pluvial Lake Alamosa in the northern San Luis Basin overflowed, and began to drain to the south across the closed Sunshine Valley–Costilla Plain region ≤400 ka. By ~200 ka, erosion had cut through topographic highs at Ute Mountain and the Red River fault zone, and began deep-canyon incision across the southern San Luis Basin. Previous studies indicate that prior to 200 ka, the present Rio Grande terminated into a large bolson complex in the vicinity of El Paso, Texas, and systematic, headward erosional processes had subtly integrated discontinuously connected basins along the eastern flank of the Rio Grande rift and southern Rocky Mountains. We propose that the integration of the entire San Luis Basin into the Rio Grande drainage system (~400–200 ka) was the critical event in the formation of the modern Rio Grande, integrating hinterland basins of the Rio Grande rift from El Paso, Texas, north to the San Luis Basin with the Gulf of Mexico. This event dramatically affected basins southeast of El Paso, Texas, across the Chisos Mountains and southeastern Basin and Range province, including the Rio

Plant endemism in the Sierras of Córdoba and San Luis (Argentina): understanding links between phylogeny and regional biogeographical patterns.

Science.gov (United States)

Chiapella, Jorge O; Demaio, Pablo H

2015-01-01

We compiled a checklist with all known endemic plants occurring in the Sierras of Córdoba and San Luis, an isolated mountainous range located in central Argentina. In order to obtain a better understanding of the evolutionary history, relationships and age of the regional flora, we gathered basic information on the biogeographical and floristic affinities of the endemics, and documented the inclusion of each taxon in molecular phylogenies. We listed 89 taxa (including 69 species and 20 infraspecific taxa) belonging to 53 genera and 29 families. The endemics are not distributed evenly, being more abundant in the lower than in the middle and upper vegetation belts. Thirty-two genera (60.3%) have been included in phylogenetic analyses, but only ten (18.8%) included local endemic taxa. A total of 28 endemic taxa of the Sierras CSL have a clear relationship with a widespread species of the same genus, or with one found close to the area. Available phylogenies for some taxa show divergence times between 7.0 - 1.8 Ma; all endemic taxa are most probably neoendemics sensu Stebbins and Major. Our analysis was specifically aimed at a particular geographic area, but the approach of analyzing phylogenetic patterns together with floristic or biogeographical relationships of the endemic taxa of an area, delimited by clear geomorphological features, could reveal evolutionary trends shaping the area.

Ampliación de la distribución de Teius oculatus y T. suquiensis (Sauria: Teiidae en la provincia de San Luis (República Argentina

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Guerreiro, Analía C.

1998-01-01

Full Text Available Teius oculatus (D'Orbigny & Bibron, 1837. Dpto. La Capital. Localidades: Daniel Donovan (33°21'S; 66°15'W UNSUCH 0098; Ciudad de San Luis (33°18'S; 66°22'W UNSL-CH 0132, 0137. Teius suquiensis Avila & Martori, 1991. Dpto. La Capital. Localidades: Daniel Dono- van, UNSL-CH 0095, 0097, 0230; Ciudad de San Luis, UNSL-CH 0118, 0120, 0141, 0172, 0214, 0221; Ruta Prov. 3 (33°15'S; 66°18'W, UNSL-CH 0231, 0232. Dpto. Cnel. Pringles: La Florida (33°08'S; 66°02'W UNSL-CH 0223. Colectores: Juan Cruz Baldoni, Ana María Brigada, Matías García, Analía C. Guerreiro y Flavio Martínez.

The San Luis Project: An Attempt to Decentralize Physics in Mexico

Science.gov (United States)

Will, T. A.; Valladares, A. A.

1976-01-01

Described is a project being conducted by the Physics Institute of the University of San Luis Potori, Mexico, in order to avoid concentrating physics education and research activities in Mexico City. (SL)

76 FR 33362 - Request for Interest in Lease Arrangement on Federal Lands, San Luis Project, Los Banos, California

Science.gov (United States)

2011-06-08

... facilitating environmentally appropriate renewable-energy projects involving solar, wind and waves, geothermal... Federal Lands, San Luis Project, Los Banos, California AGENCY: Bureau of Reclamation, Interior. ACTION... energy project(s) in a lease arrangement on existing Reclamation lands in the vicinity of the San Luis...

Geology and petrography of basement in south extreme in Sierra Grande de San Luis, Argentina

International Nuclear Information System (INIS)

Morosini, A.; Ortiz Suarez, A.

2007-01-01

In the south of the Sierra de San Luis is recognized a basement composed by La Escalerilla and Los Puquios granites, accompanied by schist, mylonite s and mafic-ultramafic rocks. The schists, La Escalerilla granite and the mafic -ultramafic rocks are affected by a regional metamorphism in anphibolites facies, the two first present a N-S foliation di ping to east. The mylonite s correspond to a second event of deformation, distributed in thin belts of NNE-SSO direction and inclination to east, developed in green schist to anphibolites facies. Los Puquios granite represents the more young of the basement rocks and the intrusion was associated with a shear zone. Los Puquios granite forms dikes and small plutons cutting La Escalerilla granite and micas chits in high cortical levels

77 FR 21797 - Hopper Mountain, Bitter Creek, and Blue Ridge National Wildlife Refuges, Ventura, Kern, San Luis...

Science.gov (United States)

2012-04-11

... DEPARTMENT OF THE INTERIOR Fish and Wildlife Service [FWS-R8-R-2011-N253: FXRS12650800000S3-112-FF08R00000] Hopper Mountain, Bitter Creek, and Blue Ridge National Wildlife Refuges, Ventura, Kern, San Luis... acres, primarily in Kern County and extending into San Luis Obispo and Ventura Counties. Blue Ridge NWR...

Commercial production of ethanol in the San Luis Valley, Colorado. Final report

Energy Technology Data Exchange (ETDEWEB)

Hewlett, E.M.; Erickson, M.V.; Ferguson, C.D.; Boswell, B.S.; Walter, K.M.; Hart, M.L.; Sherwood, P.B.

1983-07-01

The commercial feasibility of producing between 76 and 189 million liters (20 to 50 million gallons) of ethanol annually in the San Luis Valley, Colorado using geothermal energy as the primary heat source was assessed. The San Luis Valley is located in south-central Colorado. The valley is a high basin situated approximately 2316 meters (7600 feet) above sea level which contains numerous warm water wells and springs. A known geothermal resource area (IGRA) is located in the east-central area of the valley. The main industry in the valley is agriculture, while the main industry in the surrounding mountains is lumber. Both of these industries can provide feedstocks for the production of ethanol.

The eolic fluvial succession and paleoclimatic evolution of Rio Conlara, San Luis, Argentina

International Nuclear Information System (INIS)

Chiesa, J.

2004-01-01

The outcroping deposits in the ravines of the Conlara River are dominated by silt with subordinated and variable percentages of sand and clays. In the section that is described, at the south of the town of Santa Rosa del Conlara, these materials have been deposited responding generally climatic changing conditions. The base of the profile, assigned to the late Pleistocene, contains extint fauna of the Lujanense and a datation of 8950 B.P., and it is represented by fluvial sandy gravels. The overlaying succession, assigned to the Holocene, shows an intercalation of horizons generated by eolic-loessic deposits and deposits with development of pedogenetic processes. The whole succession shows characteristic of corresponding to a vegetated plain, next to the river flood plain. The discriminated horizons are the result of a detailed sampling and the representation of range parameters of the same ones, in function of the depth, this last one oscillates between 6 and 8 meters. The quaternary deposits of the region, support indistinctly as on the crystalline basement of San Luis range, as on the calcretes assigned to the Neogene [es

Plant endemism in the Sierras of Córdoba and San Luis (Argentina): understanding links between phylogeny and regional biogeographical patterns1

Science.gov (United States)

Chiapella, Jorge O.; Demaio, Pablo H.

2015-01-01

Abstract We compiled a checklist with all known endemic plants occurring in the Sierras of Córdoba and San Luis, an isolated mountainous range located in central Argentina. In order to obtain a better understanding of the evolutionary history, relationships and age of the regional flora, we gathered basic information on the biogeographical and floristic affinities of the endemics, and documented the inclusion of each taxon in molecular phylogenies. We listed 89 taxa (including 69 species and 20 infraspecific taxa) belonging to 53 genera and 29 families. The endemics are not distributed evenly, being more abundant in the lower than in the middle and upper vegetation belts. Thirty-two genera (60.3%) have been included in phylogenetic analyses, but only ten (18.8%) included local endemic taxa. A total of 28 endemic taxa of the Sierras CSL have a clear relationship with a widespread species of the same genus, or with one found close to the area. Available phylogenies for some taxa show divergence times between 7.0 – 1.8 Ma; all endemic taxa are most probably neoendemics sensu Stebbins and Major. Our analysis was specifically aimed at a particular geographic area, but the approach of analyzing phylogenetic patterns together with floristic or biogeographical relationships of the endemic taxa of an area, delimited by clear geomorphological features, could reveal evolutionary trends shaping the area. PMID:25878555

76 FR 45602 - Proposed Safe Harbor Agreement for California Red-Legged Frog, at Swallow Creek Ranch, San Luis...

Science.gov (United States)

2011-07-29

... DEPARTMENT OF THE INTERIOR Fish and Wildlife Service [FWS-R8-ES-2011-N144; 81440-1113-0000-F3] Proposed Safe Harbor Agreement for California Red-Legged Frog, at Swallow Creek Ranch, San Luis Obispo... Ranch in San Luis Obispo County, California. Within the 620 acres of land comprising the Enrolled...

Commercial production of ethanol in the San Luis Valley, Colorado. Final Report

Energy Technology Data Exchange (ETDEWEB)

Hewlett, E.M.; Erickson, M.V.; Ferguson, C.D.; Sherwood, P.B.; Boswell, B.S.; Walter, K.M.; Hart, M.L.

1983-07-01

The purpose of this study is to assess the commercial feasibility of producing between 76 and 189 million liters (20 and 50 million gallons) of ethanol annually in the San Luis Valley, Colorado using geothermal energy as the primary heat source. The San Luis Valley is located in south-central Colorado. The valley is a high basin situated approximately 2316 meters (7600 feet) above sea level which contains numerous warm water wells and springs. A known geothermal resource area (KGRA) is located in the east-central area of the valley. The main industry in the valley is agriculture, while the main industry in the surrounding mountains is lumber. Both of these industries can provide feedstock for the production of ethanol.

Archosauriform remains from the Late Triassic of San Luis province, Argentina, Quebrada del Barro Formation, Marayes-El Carrizal Basin

Science.gov (United States)

Gianechini, Federico A.; Codorniú, Laura; Arcucci, Andrea B.; Castillo Elías, Gabriela; Rivarola, David

2016-03-01

Here we present archosauriform remains from 'Abra de los Colorados', a fossiliferous locality at Sierra de Guayaguas, NW San Luis Province. Two fossiliferous levels were identified in outcrops of the Quebrada del Barro Formation (Norian), which represent the southernmost outcrops of the Marayes-El Carrizal Basin. These levels are composed by massive muddy lithofacies, interpreted as floodplain deposits. The specimens consist of one incomplete maxilla (MIC-V718), one caudal vertebra (MIC-V719), one metatarsal (MIC-V720) and one indeterminate appendicular bone (MIC-V721). The materials can be assigned to Archosauriformes but the fragmentary nature and lack of unambiguous synapomorphies preclude a more precise taxomic assignment. The maxilla is remarkably large and robust and represents the posterior process. It preserved one partially erupted tooth with ziphodont morphology. This bone shows some anatomical traits and size match with 'rauisuchians' and theropods. MIC-V719 corresponds to a proximal caudal vertebra. It has a high centrum, a ventral longitudinal furrow, expanded articular processes for the chevrons, a posteriorly displaced diapophysis located below the level of the prezygapophyses, and short prezygapophyses. This vertebra would be from an indeterminate archosauriform. MIC-V720 presents a cylindrical diaphysis, with a well-developed distal trochlea, which present resemblances with metatarsals of theropods, pseudosuchians, and silesaurids, although the size matches better with theropods. MIC-V721 has a slender diaphysis and a convex triangular articular surface, and corresponds to an indeterminate archosauriform. Despite being fragmentary, these materials indicate the presence of a diverse archosauriforms association from Late Triassic beds of San Luis. Thus, they add to the faunal assemblage recently reported from this basin at San Juan Province, which is much rich and diverse than the coeval paleofauna well known from Los Colorados Formation in the

Petrological and geochemical characterization of the plutonic rocks of the Sierra de La Aguada, Province of San Luis, Argentina: Genetic implications with the Famatinian magmatic arc

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E. Cristofolini

2017-07-01

Full Text Available This study presents a synthesis on the geology of the crystalline complex that constitute the Sierra de la Aguada, San Luis province, Argentine, from an approach based on field relations, petrologic and structural features and geochemical characteristic. This mountain range exposes a basement dominated by intermediate to mafic calcalkaline igneous rocks and peraluminous felsic granitoids, both emplaced in low to medium grade metamorphic rocks stabilized under low amphibolite facies. All this lithological terrane has been grouped in the El Carrizal-La Aguada Complex. Field relations, petrographic characterization and geochemical comparison of the plutonic rocks from the study area with those belonging to the Ordovician Famatinian suit exposed in the Sierra Grande de San Luis, suggest a genetic and temporal relation linked to the development of the Famatinian magmatic arc.

Geología de la parte sur de la Sierra de San Luis y granitoides asociados, Argentina

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Llambías, E. J.

1992-12-01

Full Text Available The lower Palaeozoic basement of the southern part of Sierra de San Luis, Argentina, is made up of metamorphic rocks, granitoids and ultramafic rocks. The metamorphic grade ranges from the lower limit of greenschist facies through the upper limit of amphibolite facies, in apparent transition. The lower grade metamorphic rocks include slates, metavolcanics, metaconglomerates, quartzites and phyllites. Rocks with intermediate metamorphism are biotite-quartz-oligoclase schists with abundant pegmatoid veins. The higher grade metamorphism is represented by gneisses, amphibolites and migmatites, to which mafic and ultramafic bodies are associated. Three deformation phases have been recognized, being the last one (D3, of ordovician age, responsible of the most marked structures.The granitoids were grouped into pre-, syn- and post-kynematic bodies respect to D3. The pre-kynematic granitoids are located within the belt of lower grade metamorphic rocks and are composed of tonalites, granodiorites and monzogranites, strongly deformed. Their age is unknown. The syn-kynematic bodies are mainly garnet-moscovite-bearing leucogranodiorites. They show low thermal and rheological contrasts respect to the country rocks, and the age is 454 ± 21 m.a. The post-kynematic granitoids are mainly monzogranites with K-feldspar megacrysts and abundant sphene. They are subcircular and discordant, and are associated with an extensional regime. Their age is comprised between 423 and 320 m.a., and corresponds to the end of the Famatinian cycle.El basamento cristalino de la parte sur de la Sierra de San Luis, de edad Paleozoico Inferior, está constituido por rocas metamórficas, granitoides y rocas ultramáficas. El grado de metamorfismo varía desde la parte baja de esquistos verdes hasta la parte alta de la facies anfibolita, siendo sus relaciones de aparente transicionalidad. Las rocas con menor grado metamórfico consisten en pizarras, metavolcanitas, metaconglomerados

Social Integration and Health Behavioral Change in San Luis, Honduras

Science.gov (United States)

McQuestion, Michael J.; Calle, Ana Quijano; Drasbek, Christopher; Harkins, Thomas; Sagastume, Lourdes J.

2010-01-01

This study explores the effects of social integration on behavioral change in the course of an intensive, community-based public health intervention. The intervention trained volunteers and mobilized local organizations to promote 16 key family health practices in rural San Luis, Honduras, during 2004 to 2006. A mixed methods approach is used.…

Los jóvenes de contextos rurales y su relación con las TICs en San Luis, Argentina. Aproximaciones a las prácticas y tensiones en el proceso de apropiación.

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María Elisa Fornasari

2014-03-01

Full Text Available Este artículo aborda las maneras en que las juventudes rurales de la provincia de San Luis, Argentina, hacen significativas las tecnologías de la información y comunicación según sus trayectorias de vida. Muestra, a partir de un estudio de caso, los elementos contextuales, históricos y políticos que inciden en la apropiación y los filtros que  construyen las diversas juventudes en la vinculación con estos procesos complejos. Se presentan  dos grupalidades  juveniles diferentes y las maneras en que experimentan las relaciones con las TICs en el cruce entre las culturas locales y los atravesamientos  políticos e institucionales ligados a elementos contemporáneos globalizados.

Neuroimaging Features of San Luis Valley Syndrome

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Matthew T. Whitehead

2015-01-01

Full Text Available A 14-month-old Hispanic female with a history of double-outlet right ventricle and developmental delay in the setting of recombinant chromosome 8 syndrome was referred for neurologic imaging. Brain MR revealed multiple abnormalities primarily affecting midline structures, including commissural dysgenesis, vermian and brainstem hypoplasia/dysplasia, an interhypothalamic adhesion, and an epidermoid between the frontal lobes that enlarged over time. Spine MR demonstrated hypoplastic C1 and C2 posterior elements, scoliosis, and a borderline low conus medullaris position. Presented herein is the first illustration of neuroimaging findings from a patient with San Luis Valley syndrome.

Future Drinking Water Supply, Spatial Analysis and Vulnerability of the City of San Luis Potosi, Mexico

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Carlos Contreras Servín

2008-01-01

Full Text Available This paper discusses and presents the physical, social and economic circumstances that affect the overall picture and the current issues that involve the drinking water supply for the metropolitan area of San Luis Potosi. The relationship between water availability and increasing population, as well as the evolution of the groundwater extraction, are among the topics addressed here. Additionally, this research shows a diagnosis of the current situation of the drinking water supply in San Luis Potosi and the surrounding areas, as well as the likely scenario in the near future.

Airborne electromagnetic and magnetic survey data of the Paradox and San Luis Valleys, Colorado

Science.gov (United States)

Ball, Lyndsay B.; Bloss, Benjamin R.; Bedrosian, Paul A.; Grauch, V.J.S.; Smith, Bruce D.

2015-01-01

In October 2011, the U.S. Geological Survey (USGS) contracted airborne magnetic and electromagnetic surveys of the Paradox and San Luis Valleys in southern Colorado, United States. These airborne geophysical surveys provide high-resolution and spatially comprehensive datasets characterizing the resistivity structure of the shallow subsurface of each survey region, accompanied by magnetic-field information over matching areas. These data were collected to provide insight into the distribution of groundwater brine in the Paradox Valley, the extent of clay aquitards in the San Luis Valley, and to improve our understanding of the geologic framework for both regions. This report describes these contracted surveys and releases digital data supplied under contract to the USGS.

Estudio descriptivo de la percepción de la relación psicotearpeútica en pacientes de la ciudad de San Luis (Descriptive Study of the Perception of the Perception of the Psychotherapeutic Relationship in Patients from the City of San Luis

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Horacio Daniel García

2015-06-01

Full Text Available RESUMEN: Para indagar la percepción del paciente de la relación terapéutica y las valoraciones acerca del terapeuta que podrían ser facilitadoras, se diseñó un estudio recurriendo a una muestra no probabilística compuesta por 108 pacientes (M = 31.90, DE = 11.54, residentes en San Luis, Argentina. Se utilizó el Helping Alliance Questionnaire - HAq-II (Luborsky et al., 1996 y un cuestionario construido ad hoc. En los resultados se observa, en general, una adecuada relación terapéutica y una alta valoración en los terapeutas de aspectos como calidez, seriedad, comprensión, confianza, respeto, interés y compromiso. Las terapeutas mujeres obtuvieron puntuaciones mayores en calidez y seriedad, clima de confianza, compromiso de trabajo, entre otros. Los pacientes sin conocimiento de los diferentes enfoques de psicoterapia tienden a valorar más positivamente aspectos vinculares de la relación terapéutica; en tanto quienes tienen conocimiento poseen expectativas más altas respecto a los resultados que pretenden alcanzar. ABSTRACT: To investigate the patient’s perception of the therapeutic relationship and assessments about the therapist which could be facilitating, we designed a study using a non-probabilistic sample composed by 108 patients (M = 31.90, SD = 11.54, residents in San Luis, Argentina. The Helping Alliance Questionnaire - HAq-II was used (Luborsky et al., 1996 and a questionnaire built ad hoc, too. In general, the results show an appropriate therapeutic relationship and a high rating of therapist aspects such as warmth, seriousness, understanding, trust, respect, interest and commitment. Women therapists obtained higher scores in warmth and seriousness, trust, commitment to work, among others. Patients without knowledge of the different psychotherapy approaches tend to assess more positively relational aspects of the therapeutic relationship; meanwhile those who have knowledge have higher expectations about the results

Late Miocene-Pleistocene evolution of a Rio Grande rift subbasin, Sunshine Valley-Costilla Plain, San Luis Basin, New Mexico and Colorado

Science.gov (United States)

Ruleman, C.A.; Thompson, R.A.; Shroba, R.R.; Anderson, M.; Drenth, B.J.; Rotzien, J.; Lyon, J.

2013-01-01

The Sunshine Valley-Costilla Plain, a structural subbasin of the greater San Luis Basin of the northern Rio Grande rift, is bounded to the north and south by the San Luis Hills and the Red River fault zone, respectively. Surficial mapping, neotectonic investigations, geochronology, and geophysics demonstrate that the structural, volcanic, and geomorphic evolution of the basin involves the intermingling of climatic cycles and spatially and temporally varying tectonic activity of the Rio Grande rift system. Tectonic activity has transferred between range-bounding and intrabasin faults creating relict landforms of higher tectonic-activity rates along the mountain-piedmont junction. Pliocene–Pleistocene average long-term slip rates along the southern Sangre de Cristo fault zone range between 0.1 and 0.2 mm/year with late Pleistocene slip rates approximately half (0.06 mm/year) of the longer Quaternary slip rate. During the late Pleistocene, climatic influences have been dominant over tectonic influences on mountain-front geomorphic processes. Geomorphic evidence suggests that this once-closed subbasin was integrated into the Rio Grande prior to the integration of the once-closed northern San Luis Basin, north of the San Luis Hills, Colorado; however, deep canyon incision, north of the Red River and south of the San Luis Hills, initiated relatively coeval to the integration of the northern San Luis Basin.Long-term projections of slip rates applied to a 1.6 km basin depth defined from geophysical modeling suggests that rifting initiated within this subbasin between 20 and 10 Ma. Geologic mapping and geophysical interpretations reveal a complex network of northwest-, northeast-, and north-south–trending faults. Northwest- and northeast-trending faults show dual polarity and are crosscut by north-south– trending faults. This structural model possibly provides an analog for how some intracontinental rift structures evolve through time.

Embarazo en la adolescencia: su comportamiento en San Luis Pregnancy in adolescence: its behavior in San Luis municipality

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Dania Rangel Díaz

2012-08-01

Full Text Available Introducción: El embarazo en las edades tempranas, sin la adecuada preparación biológica y psicológica, trae al contraste una serie de dificultades y problemas. Objetivo: Evaluar el comportamiento del embarazo en la adolescencia en el municipio de "San Luis" durante el período 2005-2010. Material y método: Se realizó una investigación aplicada partiendo de los conocimientos teóricos y prácticos. A partir de la metodología cuantitativa se presenta un diseño longitudinal, retrospectivo, analítico y descriptivo. Se utilizó como universo (2165 todas las mujeres embarazadas desde enero de 2005 a diciembre del año 2010; la muestra la constituyeron todas las embarazadas adolescentes (405 pertenecientes al municipio San Luis. Las técnicas y procedimientos de obtención de la información fue a través de la revisión documental. Se hizo una minuciosa revisión de las historias clínicas y de la información que se guarda en archivo del departamento de genética municipal y se recolectaron datos como: la edad materna, causa del embarazo, ocupación, las enfermedades presentadas durante el embarazo, el peso al nacer y el abandono escolar. Se utilizó el método empírico empleando la media porcentual como medida de tendencia central para variables cualitativas. Resultados: Predominan las adolescentes entre 16 y 18 años de edad, todas estudiantes; la principal causa del embarazo fue el desconocimiento. Se realizó una captación precoz al mayor porciento de ellas; como la enfermedad asociada predominó la hipertensión arterial. Conclusiones: Se logró un peso adecuado al final de la gestación y en su mayoría las estudiantes no continuaron los estudios.Introduction: pregnancy in early ages, without sufficient biological and psychological preparation, brings about a series of difficulties and problems. Objective: to assess the behavior of pregnancy in adolescence in “San Luis” municipality during a five-year period (2005

Transient electromagnetic mapping of clay units in the San Luis Valley, Colorado

Science.gov (United States)

Fitterman, David V.; Grauch, V.J.S.

2010-01-01

Transient electromagnetic soundings were used to obtain information needed to refine hydrologic models of the San Luis Valley, Colorado. The soundings were able to map an aquitard called the blue clay that separates an unconfined surface aquifer from a deeper confined aquifer. The blue clay forms a conductor with an average resistivity of 6.9 ohm‐m. Above the conductor are found a mixture of gray clay and sand. The gray clay has an average resistivity of 21 ohm‐m, while the sand has a resistivity of greater than 100 ohm‐m. The large difference in resistivity of these units makes mapping them with a surface geophysical method relatively easy. The blue clay was deposited at the bottom of Lake Alamosa which filled most of the San Luis Valley during the Pleistocene. The geometry of the blue clay is influenced by a graben on the eastern side of the valley. The depth to the blue clay is greater over the graben. Along the eastern edge of valley the blue clay appears to be truncated by faults.

Detection and Characterization of Shiga Toxin Producing Escherichia coli, Salmonella spp., and Yersinia Strains from Human, Animal, and Food Samples in San Luis, Argentina

Science.gov (United States)

Favier, Gabriela Isabel; Lucero Estrada, Cecilia; Cortiñas, Teresa Inés; Escudero, María Esther

2014-01-01

Shiga toxin producing Escherichia coli (STEC), Salmonella spp., and Yersinia species was investigated in humans, animals, and foods in San Luis, Argentina. A total of 453 samples were analyzed by culture and PCR. The antimicrobial susceptibility of all the strains was studied, the genomic relationships among isolates of the same species were determined by PFGE, and the potencial virulence of Y. enterocolitica strains was analyzed. Yersinia species showed higher prevalence (9/453, 2.0%, 95% CI, 0.7–3.3%) than STEC (4/453, 0.9%, 95% CI, 0–1.8%) and Salmonella spp. (3/453, 0.7%, 95% CI, 0–1.5%). Y. enterocolitica and Y. intermedia were isolated from chicken carcasses (6/80, 7.5%, 95% CI, 1.5–13.5%) and porcine skin and bones (3/10, 30%, 95% CI, 0–65%). One STEC strain was recovered from human feces (1/70, 1.4%, 95% CI, 0–4.2%) and STEC stx1/stx2 genes were detected in bovine stools (3/129, 2.3%, 95% CI, 0–5.0%). S. Typhimurium was isolated from human feces (1/70, 1.4%, 95% CI, 0–4.2%) while one S. Newport and two S. Gaminara strains were recovered from one wild boar (1/3, 33%, 95% CI, 0–99%). The knowledge of prevalence and characteristics of these enteropathogens in our region would allow public health services to take adequate preventive measures. PMID:25177351

San Luis Valley - Taos Plateau Landscape-Level Cultural Heritage Values and Risk Assessment

Energy Technology Data Exchange (ETDEWEB)

Wescott, Konstance L. [Argonne National Lab. (ANL), Argonne, IL (United States); Abplanalp, Jennifer M. [Argonne National Lab. (ANL), Argonne, IL (United States); Brown, Jeff [Bureau of Land Management, Monte Vista, CO (United States); Cantwell, Brian [Argonne National Lab. (ANL), Argonne, IL (United States); Dicks, Merrill [Bureau of Land Management, Taos, NM (United States); Fredericks, Brian [Bureau of Land Management, Monte Vista, CO (United States); Krall, Angie [US Forest Service, Creede, CO (United States); Rollins, Katherine E. [Argonne National Lab. (ANL), Argonne, IL (United States); Sullivan, Robert [Argonne National Lab. (ANL), Argonne, IL (United States); Valdez, Arnie [Univ. of New Mexico, Albuquerque, NM (United States); Verhaaren, Bruce [Argonne National Lab. (ANL), Argonne, IL (United States); Vieira, Joseph [Bureau of Land Management, Monte Vista, CO (United States); Walston, Lee [Argonne National Lab. (ANL), Argonne, IL (United States); Zvolanek, Emily A. [Argonne National Lab. (ANL), Argonne, IL (United States)

2016-10-01

The San Luis Valley – Taos Plateau Landscape-Level Cultural Heritage Values and Risk Assessment (hereafter referred to as cultural assessment) is a BLM pilot project designed to see whether the Rapid Ecoregional Assessment (REA) framework (already established and implemented throughout many ecoregions in the West) can be applied to the cultural environment.

Distribution and abundance of Least Bell’s Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) on the Middle San Luis Rey River, San Diego County, southern California—2017 data summary

Science.gov (United States)

Allen, Lisa D.; Howell, Scarlett L.; Kus, Barbara E.

2018-04-20

We surveyed for Least Bell’s Vireos (LBVI) (Vireo bellii pusillus) and Southwestern Willow Flycatchers (SWFL) (Empidonax traillii extimus) along the San Luis Rey River, between College Boulevard in Oceanside and Interstate 15 in Fallbrook, California (middle San Luis Rey River), in 2017. Surveys were conducted from April 13 to July 11 (LBVI) and from May 16 to July 28 (SWFL). We found 146 LBVI territories, at least 107 of which were occupied by pairs. Five additional transient LBVIs were detected. LBVIs used five different habitat types in the survey area: mixed willow, willow-cottonwood, willow-sycamore, riparian scrub, and upland scrub. Forty-four percent of the LBVIs occurred in habitat characterized as mixed willow and 89 percent of the LBVI territories occurred in areas with greater than 50 percent native plant cover. Of 16 banded LBVIs detected in the survey area, 8 had been given full color-band combinations prior to 2017. Four other LBVIs with single (natal) federal bands were recaptured and banded in 2017. Three LBVIs with single dark blue federal bands indicating that they were banded as nestlings on the lower San Luis Rey River and one LBVI with a single gold federal band indicating that it was banded as a nestling on Marine Corps Base Camp Pendleton (MCBCP) could not be recaptured for identification. One banded LBVI emigrated from the middle San Luis Rey River to the lower San Luis Rey River in 2017.One resident SWFL territory and one transient Willow Flycatcher of unknown subspecies (WIFL) were observed in the survey area in 2017. The resident SWFL territory, which was comprised of mixed willow habitat (5–50 percent native plant cover), was occupied by a single male from May 22 to June 21, 2017. No evidence of pairing or nesting activity was observed. The SWFL male was banded with a full color-combination indicating that he was originally banded as a nestling on the middle San Luis Rey River in 2014 and successfully bred in the survey area in 2016

Seroprevalencia de sífilis en mujeres embarazadas en San Luis Potosí Seroprevalence of syphilis in pregnant women in San Luis Potosí

OpenAIRE

Daniel E Noyola; Octavio Malacara-Alfaro; Victoria Lima-Rogel; Abraham Torres-Montes

2006-01-01

OBJETIVO: Determinar la seroprevalencia de sífilis en mujeres embarazadas. MATERIAL Y MÉTODOS: Encuesta seroepidemiológica en 1 857 mujeres que acudieron para la atención del parto a un hospital general de la ciudad de San Luis Potosí. RESULTADOS: Se diagnosticó sífilis en cinco (0.27%) mujeres al momento del parto. Los factores maternos asociados con una probabilidad superior de presentar sífilis incluyeron mayor edad materna, mayor número de embarazos previos y vivir en unión libre con su p...

Fossil content and structural relationships of the San Luis zone and the Caborca zone of NW Sonora, Mexico, suppression of the precambrian Z of Caborca

International Nuclear Information System (INIS)

Radelli, Luigi; Solis Weiss, Vivianne; Dorame Navarro, Miguel; De La Cruz Ortega, Lissette del Carmen; Urrutia, Jose

2008-01-01

In the Caborca region of western Sonora a Precambrian Z does not cover a unique Precambrian socle as previously believed. Two tectonic zones occur there instead: the San Luis Zone and the Caborca Zone. The first is comprised of the Precambrian San Luis socle of gneiss and granite, crossed by 1.1 Ga old anorthosites, the San Luis sedimentary cover, and, above it, a Lower Jurassic volcano-sedimentary sequence. The Caborca Zone consists of the Precambrian Bamori socle of parametamorphic rocks crossed by 1.1 Ga old Aibo granite, and of the Gamuza sedimentary cover. 1.1 Ga ago the two zones were far away from each other. They have been brought together by the Nevadian orogeny. Both zones are allochthonous, and the Caborca Zone is a nappe upon the San Luis Zone. The lowermost units of the Gamuza cover furnished psammocorals and a possible Pterophyllum jageri (?). Accordingly, its geological age is either Palaeozoic or Triassic.The San Luis cover furnished Nematophites [Prototaxites (?) and Nematothallus] from its lower part; Calcispongiae, Cardaicarpus' seeds, and Artisia from its upper part Thus, it is a Devono-Carboniferous unit. The study area belongs in the Baja-Borderland block, which underwent, an Eocene northwards drifting of about 900 - 1000 km, and a 30 celsius degrade to 40 celsius degrade clockwise rotation relative to the main part of Sonora.

Redefining the public sphere: self-managed schools in Argentina

OpenAIRE

Feldfeber, Myriam

2003-01-01

El Proyecto de las Escuelas Experimentales o Autogestionadas de la Provincia de San Luis adquiere sentido en el marco de la denominada Transformación Educativa y de las políticas desarrolladas en las últimas décadas en Argentina, que, al igual que en gran parte de los países latinoamericanos, han estado orientadas por discursos y prácticas tendientes a legitimar un nuevo modelo económico, social, político, cultural y educativo. La reforma educativa argentina de la década del '90 puede analiza...

Real-Time Water Quality Monitoring and Habitat Assessment in the San Luis National Wildlife Refuge

OpenAIRE

Quinn, Nigel W.T.; Hanlon, Jeremy S.; Burns, Josephine R.; Stromayer, Karl A.K.; Jordan, Brandon M.; Ennis, Mike J.; Woolington, Dennis W.

2005-01-01

The project report describes a two year experiment to control wetland drainage to the San Joaquin River of California from the San Luis National Wildlife Refuge using a decision support system for real-time water quality management. This system required the installation and operation of one inlet and three drainage flow and water quality monitoring stations which allowed a simnple mass balance model to be developed of the seasonally managed wetlands in the study area. Remote sensing meth...

Mesquite: A multi-purpose species in two locations of San Luis Potosi, Mexico

Science.gov (United States)

Jose Villanueva-Diaz; Augustin Hernandez-Reyna; J. Armando Ramirez-Garcia

2000-01-01

The mesquite woodland distributed in approximately 200,000 ha in Llanos de Angostura, and Pozo del Carmen, San Luis Potosi, represents a main source of firewood, construction material, honey, and forage for the rural people that inhabit part of the lowlands of the hydrological region RH26 and RH37. Firewood collection in this region averages 142 m3 /week. Most of this...

Modelo de sedimentación continental para el rift cretácico de la Argentina central: Ejemplo de la sierra de las Quijadas, San Luis

OpenAIRE

D. Rivarola; L. Spalletti

2006-01-01

En este trabajo se estudian las sedimentitas continentales cretácicas (Grupo del Gigante) en la sierra de las Quijadas, ubicada en el noroeste de la provincia de San Luis. La información se obtuvo mediante el relevamiento de 15 perfiles sedimentológicos de detalle que permitieron definir 21 facies sedimentarias y 12 asociaciones de facies. Las facies permitieron interpretar los principales procesos de acumulación sedimentaria, mientras que a partir de las asociaciones de facies se propusieron...

Uranium occurrences in the pegmatite 'Las Cuevas', province of San Luis, Argentine Republic

International Nuclear Information System (INIS)

Daziano, C.O.; Karlsson, A.C.; Ayala, R.

1993-01-01

Mineral associations found in an uranium deposit of Sierras Pampeanas, San Luis, are considered in these papers. Damourite stands out among the uranium minerals related to uraninite and coffinite. Pyrite, marcasite and other sulphides are found together with apatite and gummite. Autunite is the uranium secondary mineral more abundant. A mineralization with epigenetic contribution by circulating solutions is suggested to the studied area. (Author)

Uranium series isotopes concentration in sediments at San Marcos and Luis L. Leon reservoirs, Chihuahua, Mexico

Science.gov (United States)

Méndez-García, C.; Renteria-Villalobos, M.; García-Tenorio, R.; Montero-Cabrera, M. E.

2014-07-01

Spatial and temporal distribution of the radioisotopes concentrations were determined in sediments near the surface and core samples extracted from two reservoirs located in an arid region close to Chihuahua City, Mexico. At San Marcos reservoir one core was studied, while from Luis L. Leon reservoir one core from the entrance and another one close to the wall were investigated. 232Th-series, 238U-series, 40K and 137Cs activity concentrations (AC, Bq kg-1) were determined by gamma spectrometry with a high purity Ge detector. 238U and 234U ACs were obtained by liquid scintillation and alpha spectrometry with a surface barrier detector. Dating of core sediments was performed applying CRS method to 210Pb activities. Results were verified by 137Cs AC. Resulting activity concentrations were compared among corresponding surface and core sediments. High 238U-series AC values were found in sediments from San Marcos reservoir, because this site is located close to the Victorino uranium deposit. Low AC values found in Luis L. Leon reservoir suggest that the uranium present in the source of the Sacramento - Chuviscar Rivers is not transported up to the Conchos River. Activity ratios (AR) 234U/overflow="scroll">238U and 238U/overflow="scroll">226Ra in sediments have values between 0.9-1.2, showing a behavior close to radioactive equilibrium in the entire basin. 232Th/overflow="scroll">238U, 228Ra/overflow="scroll">226Ra ARs are witnesses of the different geological origin of sediments from San Marcos and Luis L. Leon reservoirs.

Uranium series isotopes concentration in sediments at San Marcos and Luis L. Leon reservoirs, Chihuahua, Mexico

International Nuclear Information System (INIS)

Méndez-García, C.; Montero-Cabrera, M. E.; Renteria-Villalobos, M.; García-Tenorio, R.

2014-01-01

Spatial and temporal distribution of the radioisotopes concentrations were determined in sediments near the surface and core samples extracted from two reservoirs located in an arid region close to Chihuahua City, Mexico. At San Marcos reservoir one core was studied, while from Luis L. Leon reservoir one core from the entrance and another one close to the wall were investigated. 232 Th-series, 238 U-series, 40 K and 137 Cs activity concentrations (AC, Bq kg −1 ) were determined by gamma spectrometry with a high purity Ge detector. 238 U and 234 U ACs were obtained by liquid scintillation and alpha spectrometry with a surface barrier detector. Dating of core sediments was performed applying CRS method to 210 Pb activities. Results were verified by 137 Cs AC. Resulting activity concentrations were compared among corresponding surface and core sediments. High 238 U-series AC values were found in sediments from San Marcos reservoir, because this site is located close to the Victorino uranium deposit. Low AC values found in Luis L. Leon reservoir suggest that the uranium present in the source of the Sacramento – Chuviscar Rivers is not transported up to the Conchos River. Activity ratios (AR) 234 U/ 238 U and 238 U/ 226 Ra in sediments have values between 0.9–1.2, showing a behavior close to radioactive equilibrium in the entire basin. 232 Th/ 238 U, 228 Ra/ 226 Ra ARs are witnesses of the different geological origin of sediments from San Marcos and Luis L. Leon reservoirs

Evaluating the sustainability of a regional system using Fisher information in the San Luis Basin, Colorado

Science.gov (United States)

This paper describes the theory, data, and methodology necessary for using Fisher information to assess the sustainability of the San Luis Basin (SLB) regional system over time. Fisher information was originally developed as a measure of the information content in data and is an ...

Green Net Regional Product for the San Luis Basin, Colorado: An Economic Measure of Regional Sustainability

Science.gov (United States)

This paper presents the data sources and methodology used to estimate Green Net Regional Product (GNRP), a green accounting approach, for the San Luis Basin (SLB). GNRP is equal to aggregate consumption minus the depreciation of man-made and natural capital. We measure the move...

Blue oak plant communities of southern San Luis Obispo and northern Santa Barbara Counties, California

Science.gov (United States)

Mark I. Borchert; Nancy D. Cunha; Patricia C. Krosse; Marcee L. Lawrence

1993-01-01

An ecological classification system has been developed for the Pacific Southwest Region of the Forest Service. As part of that classification effort, blue oak (Quercus douglasii) woodlands and forests of southern San Luis Obispo and northern Santa Barbara Counties in Los Padres National Forest were classified into I3 plant communities using...

Hydrogeologic Assessment of the East Bear Creek Unit, San LuisNational Wildlife Refuge

Energy Technology Data Exchange (ETDEWEB)

Quinn, Nigel W.T.

2007-07-15

San Luis National Wildlife Refuge Complex to meetReclamation s obligations for Level 4 water supply under the CentralValley Project Improvement Act. Hydrogeological assessment of the EastBear Creek Unit of the San Luis National Wildlife Refuge was conductedusing a combination of field investigations and a survey of availableliterature from past US Geological Survey Reports and reports by localgeological consultants. Conservative safe yield estimates made using theavailable data show that the East Bear Creek Unit may have sufficientgroundwater resources in the shallow groundwater aquifer to meet aboutbetween 25 percent and 52 percent of its current Level II and between 17percent and 35 percent of its level IV water supply needs. The rate ofsurface and lateral recharge to the Unit and the design of the well fieldand the layout and capacity of pumped wells will decide both thepercentage of annual needs that the shallow aquifer can supply andwhether this yield is sustainable without affecting long-term aquiferquality. In order to further investigate the merits of pumping the nearsurface aquifer, which appears to have reasonable water quality for usewithin the East Bear Creek Unit -- monitoring of the potential sources ofaquifer recharge and the installation of a pilot shallow well would bewarranted. Simple monitoring stations could be installed both upstreamand downstream of both the San Joaquin River and Bear Creek and beinstrumented to measureriver stage, flow and electrical conductivity.Ideally this would be done in conjunction with a shallow pilot well,pumped to supply a portion of the Unit's needs for the wetland inundationperiod.

El mático de la Región de Cuyo (Argentina)

OpenAIRE

Ariza Espinar, Luis; Bonzani, Norma

1992-01-01

Se estudiaron los caracteres morfoanatómicos de valor diagnóstico de dos especies conocidas en la Argentina con el nombre vulgar de "mático" o "matico": una piperácea andina (Piper elongatum Vahl) y una asterácea (Artemisia douglasiana Bess.) asilvestrada y cultivada en la región de Cuyo (Provincia de San Juan, La Rioja, San Luis y Mendoza). Esta última ha despertado el interés de los fitoquímicos y es utilizada como antiulcerosa en medicina popular.

Homoparentalidad: explorando el reconocimiento social y los derechos de los homosexuales en la ciudad de San Luis, Argentina

Directory of Open Access Journals (Sweden)

Yael guadalupe Calvo Laméndola

2013-01-01

Full Text Available Abstract This research paper deals with the opinions of practitioners working in the field of health care, education and law in the city of San Luis on homosexual parenting, and its possible effects in the psychological development of children adopted by homosexual couples. A descriptive-exploratory study was conducted with the aim of making a preliminary approach to this issue, which made it possible to establish the common-sense knowledge referred to above. The sample was composed of 21 individuals, five pediatricians, five lawyers, five teachers and six psychologists. The purpose of this presentation is to communicate the results obtained in one of the four dimensions of the analysis. Said results were obtained before the implementation of the Egalitarian Marriage Act. The results obtained in relation to this dimension reveal that almost all homosexual couples should have the same rights as any other citizen, except that to forming a family by adopting a child. It is important to note that, when answering to the questions; many professionals did not know whether to adhere to the principles of their profession, or to their personal opinion. Resumen El presente artículo de investigación indaga por las opiniones de profesionales del ámbito de la salud, educación y jurídico de la ciudad de San Luis acerca de la homoparentalidad y sus posibles consecuencias en el desarrollo psicológico de niños adoptados por parejas homosexuales. Se realizó un estudio exploratorio de carácter descriptivo, en tanto la finalidad de esta investigación consistía en lograr un primer acercamiento a la problemática en estudio para reconocer el sentido común referido a ella. La muestra quedó finalmente conformada por 21 sujetos: cinco médicos pediatras, cinco abogados, cinco docentes y seis psicólogos. El fin concreto es difundir los resultados obtenidos en una de las cuatro dimensiones de análisis, y fueron recolectados antes de que se promulgara la Ley

Black bear abundance, habitat use, and food habits in the Sierra San Luis, Sonora, Mexico

Science.gov (United States)

Rodrigo Sierra Corona; Ivan A. Sayago Vazquez; M. del Carmen Silva Hurtado; Carlos A. Lopez Gonzalez

2005-01-01

We studied black bears to determine habitat use, food habits, and abundance between April 2002 and November 2003 in the Sierra San Luis, Sonora. We utilized transects to determine spoor presence, camera traps for abundance, and scat analysis. During 2002, bears fed principally on plant material, and for 2003 on animal matter, namely livestock. Habitat use differed...

Concentrations of persistent organic pollutants (POPs) and heavy metals in soil from San Luis Potosí, México.

Science.gov (United States)

Perez-Vazquez, Francisco Javier; Flores-Ramirez, Rogelio; Ochoa-Martinez, Angeles Catalina; Orta-Garcia, Sandra Teresa; Hernandez-Castro, Berenice; Carrizalez-Yañez, Leticia; Pérez-Maldonado, Iván N

2015-01-01

The aim of this study was to assess the levels of polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs), p,p'-dichlorodiphenyltrichloroethane (DDT), p,p'-dichlorodiphenyldichloroethylene (DDE), and four heavy metals (arsenic, cadmium, lead, and mercury) in soil from the city of San Luis Potosí in Mexico. In order to confirm the presence of the previously mentioned compounds, outdoor surface soil samples were collected and analyzed by gas chromatography/mass spectrometer for PBDEs, PCBs, DDT, and DDE. Meanwhile, heavy metals were quantified using the atomic absorption spectrophotometry technique. The total PBDEs levels ranged from 5.0 to 134 μg/kg dry weight (dw), with a total mean PBDEs level of 22.0 ± 32.5 μg/kg dw (geometric mean ± standard deviation). For PCBs, the total mean level in the studied soil was 21.6 ± 24.7 μg/kg dw (range, Luis Potosí, Mexico, and considering that soil is an important pathway of exposure for people, a biomonitoring program for the surveillance of the general population in the city of San Luis Potosi is necessary.

Yacimientos de Celestina en la Plataforma Valles-San Luis Potosí

OpenAIRE

Rocha Rocha, Macario

2008-01-01

En la zona de estudio, la Plataforma Valles-San Luis Potosí (PVSLP), existen depósitos de celestina; las características geotectónicas de la zona, hacen pensar que estos depósitos se asocian con evaporitas del Jurásico Superior-Cretácico Inferior. La mineralización de celestina arma en la Formación El Abra y en menor grado la Formación Indidura, en forma de vetas, mantos, zonas de brecha y cuerpos irregulares. La mineralogía consiste básicamente de celestina y algunos minerales...

Uranium series isotopes concentration in sediments at San Marcos and Luis L. Leon reservoirs, Chihuahua, Mexico

Energy Technology Data Exchange (ETDEWEB)

Méndez-García, C.; Montero-Cabrera, M. E., E-mail: elena.montero@cimav.edu.mx [Centro de Investigación en Materiales Avanzados, CIMAV, Miguel de Cervantes 120, 31109, Chihuahua, Chihuahua (Mexico); Renteria-Villalobos, M. [Facultad de Zootecnia y Ecología Universidad Autónoma de Chihuahua, Periferico Francisco R. Almada Km 1, 31410, Chihuahua (Mexico); García-Tenorio, R. [Applied Nuclear Physics Group, University of Seville, ETS Arquitectura, Avda. Reina Mercedes s/n, 41012 Seville (Spain)

2008-01-01

Spatial and temporal distribution of the radioisotopes concentrations were determined in sediments near the surface and core samples extracted from two reservoirs located in an arid region close to Chihuahua City, Mexico. At San Marcos reservoir one core was studied, while from Luis L. Leon reservoir one core from the entrance and another one close to the wall were investigated. ²³²Th-series, ²³⁸U-series, ⁴⁰K and ¹³⁷Cs activity concentrations (AC, Bq kg⁻¹) were determined by gamma spectrometry with a high purity Ge detector. ²³⁸U and ²³⁴U ACs were obtained by liquid scintillation and alpha spectrometry with a surface barrier detector. Dating of core sediments was performed applying CRS method to ²¹⁰Pb activities. Results were verified by ¹³⁷Cs AC. Resulting activity concentrations were compared among corresponding surface and core sediments. High ²³⁸U-series AC values were found in sediments from San Marcos reservoir, because this site is located close to the Victorino uranium deposit. Low AC values found in Luis L. Leon reservoir suggest that the uranium present in the source of the Sacramento – Chuviscar Rivers is not transported up to the Conchos River. Activity ratios (AR) ²³⁴U/²³⁸U and ²³⁸U/²²⁶Ra in sediments have values between 0.9–1.2, showing a behavior close to radioactive equilibrium in the entire basin. ²³²Th/²³⁸U, ²²⁸Ra/²²⁶Ra ARs are witnesses of the different geological origin of sediments from San Marcos and Luis L. Leon reservoirs.

76 FR 39091 - San Luis Obispo Flood Control and Water Conservation District; Notice of Effectiveness of Surrender

Science.gov (United States)

2011-07-05

... Flood Control and Water Conservation District; Notice of Effectiveness of Surrender On October 27, 1981... \\1\\ to the San Luis Obispo Flood Control and Water Conservation District (District) for the Lopez... and Water Conservation District, 17 FERC ] 62,113 (1981). On October 24, 2005, the District filed an...

Transient Electromagnetic Soundings Near Great Sand Dunes National Park and Preserve, San Luis Valley, Colorado (2006 Field Season)

Science.gov (United States)

Fitterman, David V.; de Sozua Filho, Oderson A.

2009-01-01

Time-domain electromagnetic (TEM) soundings were made near Great Sand Dunes National Park and Preserve in the San Luis Valley of southern Colorado to obtain subsurface information of use to hydrologic modeling. Seventeen soundings were made to the east and north of the sand dunes. Using a small loop TEM system, maximum exploration depths of about 75 to 150 m were obtained. In general, layered earth interpretations of the data found that resistivity decreases with depth. Comparison of soundings with geologic logs from nearby wells found that zones logged as having increased clay content usually corresponded with a significant resistivity decrease in the TEM determined model. This result supports the use of TEM soundings to map the location of the top of the clay unit deposited at the bottom of the ancient Lake Alamosa that filled the San Luis Valley from Pliocene to middle Pleistocene time.

Tectonic Implications of Changes in the Paleogene Paleodrainage Network in the West-Central Part of the San Luis Basin, Northern Rio Grande Rift, New Mexico and Colorado, USA

Science.gov (United States)

Thompson, R. A.; Turner, K. J.; Cosca, M. A.; Drenth, B.

2016-12-01

The San Luis Basin is the largest of extensional basins in the northern Rio Grande rift (>11,400 km2). The modern basin configuration is the result of Neogene deformation that has been the focus of numerous studies. In contrast, Paleogene extensional deformation is relatively little studied owing to a fragmentary or poorly exposed stratigraphic record in most areas. However, volcanic and volcaniclastic deposits exposed along the western margin of the basin provide the spatial and temporal framework for interpretation of paleodrainage patterns that changed in direct response to Oligocene basin subsidence and the migration of centers of Tertiary volcanism. The early Oligocene (34 to 30 Ma) drainage pattern that originated in the volcanic highlands of the San Juan Mountains flowed south into the northern Tusas Mountains. A structural and topographic high composed of Proterozoic rocks in the Tusas Mountains directed flow to the southeast at least as late as 29 Ma, as ash-flow tuffs sourced in the southeast San Juan Mountains are restricted to the north side of the paleohigh. Construction of volcanic highlands in the San Luis Hills between 30 and 28.5 Ma provided an abundant source of volcanic debris that combined with volcanic detritus sourced in the southeast San Juan Mountains and was deposited (Los Pinos Formation) throughout the northern Tusas Mountains progressively onlapping the paleotopographic high. By 29 Ma, subsidence of the Las Mesitas graben, a structural sub-basin, between the San Luis Hills and the southeast San Juan and northern Tusas Mountains is reflected by thick deposits of Los Pinos Formation beneath 26.5 Ma basalts. Regional tectonism responsible for the formation of the graben may have also lowered the topographic and structural high in the Tusas Mountains, which allowed development of a southwest-flowing paleodrainage that likely flowed onto the Colorado Plateau. Tholeiitic basalt flows erupted in the San Luis Hills at 25.8 Ma, that presently cap

ESTUDIO DE SECUENCIAS DE TALLA LÍTICA A TRAVÉS DE MODELOS EXPERIMENTALES EN ROCAS SILÍCEAS DEL CENTRO DE ARGENTINA (Study of lithic carving sequences through experimental models in siliceous rocks of central Argentina

Directory of Open Access Journals (Sweden)

Eduardo Pautassi

2012-10-01

Full Text Available La evidencia arqueológica dejada por los grupos humanos que habitaron el centro de Argentina (provincias de Córdoba y San Luis, desde las primeras ocupaciones hasta momentos previos a la conquista española, pone de manifiesto que estas poblaciones desarrollaron diversas estrategias y adaptaciones a lo largo del tiempo. Una de estas estrategias es la producción de artefactos líticos. En este trabajo, se aborda el estudio de las secuencias de reducción de clastos y de manufactura de bifaces experimentales aplicando la metodología de análisis «no tipológico» para el estudio de los desechos de talla. Estas experiencias fueron realizadas como resultado del análisis de la tecnología lítica de sitios arqueológicos ubicados en la localidad arqueológica de Estancia La Suiza, San Luis. La finalidad de este trabajo es comparar ciertos atributos de las lascas producto de la experimentación para diferenciar tipos de actividades de talla. Realizar esta propuesta nos permite presentar en otra oportunidad la comparación con el registro arqueológico, e intentar dilucidar cómo fueron los diferentes momentos en el proceso de talla. ENGLISH: The archaeological evidence left by the humans who occupied the center of Argentina (comprising the present territory of the provinces of Cordoba and San Luis, Argentina, from the earliest settlements until the moments before the Spanish conquest, shows that these populations developed different strategies and adaptations to the environment over time. One such strategy is the production of lithic artifacts. This contribution specifically addresses the study of sequence of cores and reducing manufacturing bifaces by applying the methodology of the “non-typological” analysis to the study of debitage. These experiments were conducted as a result of the analysis of the lithic technology of archaeological sites located at the archaeological locality of Estancia La Suiza, in San Luis province. The purpose of

Las políticas forestales en el estado de San Luis Potosí en el porfiriato

Directory of Open Access Journals (Sweden)

Julio César Errejón Gómez

2017-04-01

Full Text Available Las acciones y omisiones del presente en materia de política forestal pueden clarificarse si se revisan los antecedentes históricos. Por ello, el objetivo de esta investigación fue analizar la influencia del contexto internacional sobre las políticas forestales implementadas durante el régimen de Porfirio Díaz. Se amplía el panorama sobre las de uso y conservación de los bosques, así como sus repercusiones en San Luis Potosí. Para contextualizar los procesos mencionados, se realizó una consulta exhaustiva de documentos históricos y bibliográficos, y se encontró que el entorno internacional incentivó la creación de leyes e instituciones federales y locales para regular la explotación, el manejo y la conservación de los bosques. A pesar de ello, en esta entidad hubo una reducción importante en sus superficies boscosas; además, el gobierno federal y estatal no evidenció un interés por preservarlas. _______________ Current actions and omissions in forest policy can be clarified if the historical background is reviewed. Therefore, the objective of this research is to analyze the influence of the international context on forest policies implemented during the regime of Porfirio Diaz (1876-1911. In particular, it aims to broaden the outlook on government policies created for the management, use and conservation of forests and their impacts on San Luis Potosi. A thorough consultation of historical and bibliographical documents was made to understand the historical processes. It was found that the international environment encouraged the creation of laws, regulations and federal and local institutions for the purpose of regulating the exploitation, management and conservation of forests. However, the state of San Luis Potosi experienced a significant reduction in their forest areas; in addition, the federal and state governments showed no interest in applying conservation of forests in Potosi territory.

Real-Time Water Quality Monitoring and Habitat Assessment in theSan Luis National Wildlife Refuge

Energy Technology Data Exchange (ETDEWEB)

Quinn, Nigel W.T.; Hanlon, Jeremy S.; Burns, Josephine R.; Stromayer, Karl A.K.; Jordan, Brandon M.; Ennis, Mike J.; Woolington,Dennis W.

2005-08-28

The project report describes a two year experiment to control wetland drainage to the San Joaquin River of California from the San Luis National Wildlife Refuge using a decision support system for real-time water quality management. This system required the installation and operation of one inlet and three drainage flow and water quality monitoring stations which allowed a simple mass balance model to be developed of the seasonally managed wetlands in the study area. Remote sensing methods were developed to document long-term trends in wetland moist soil vegetation and soil salinity in response to management options such as delaying the initiation of seasonal wetland drainage. These environmental management tools provide wetland managers with some of the tools necessary to improve salinity conditions in the San Joaquin River and improve compliance with State mandated salinity objectives without inflicting long-term harm on the wild fowl habitat resource.

Introduction to the Special Collection of Papers on the San Luis Basin Sustainability Metrics Project: A Methodology for Evaluating Regional Sustainability

Science.gov (United States)

This paper introduces a collection of four articles describing the San Luis Basin Sustainability Metrics Project. The Project developed a methodology for evaluating regional sustainability. This introduction provides the necessary background information for the project, descripti...

76 FR 414 - Tier 1 Environmental Impact Statement for the Los Angeles to San Luis Obispo (LOSSAN North) Rail...

Science.gov (United States)

2011-01-04

... expected growth in population and resulting increases in intercity travel demand between Los Angeles and San Luis Obispo. As a result of this growth in travel demand, their travel delays from the growing... environmental analysis to help make corridor level decisions regarding the level of intercity passenger rail...

Disseminating Evidence-Based Physical Education Practices in Rural Schools: The San Luis Valley Physical Education Academy.

Science.gov (United States)

Belansky, Elaine S; Cutforth, Nick; Kern, Ben; Scarbro, Sharon

2016-09-01

To address childhood obesity, strategies are needed to maximize physical activity during the school day. The San Luis Valley Physical Education Academy was a public health intervention designed to increase the quality of physical education and quantity of moderate to vigorous physical activity (MVPA) during physical education class. Elementary school physical education teachers from 17 schools participated in the intervention. They received SPARK curriculum and equipment, workshops, and site coordinator support for 2 years. A pre/post/post within physical education teacher design was used to measure intervention effectiveness. System for Observing Fitness Instruction Time (SOFIT) and a physical education teacher survey were collected 3 times. MVPA increased from 51.1% to 67.3% over the 2-year intervention resulting in approximately 14.6 additional hours of physical activity over a school year and 4662 kcal or 1.33 lbs. of weight gain prevention. More time was spent on skill drills and less time on classroom management and free play. The San Luis Valley Physical Education Academy succeeded in increasing rural, low-income students' physical activity. The multicomponent intervention contributed to the program's success. However, cost-effective approaches are needed to disseminate and implement evidencebased practices aimed at increasing students' physical activity during the school day.

Estudios fisicoquímicos y farmacobotánicos en algunas especies de asteráceas y rosáceas medicinales nativas

OpenAIRE

Martínez, Gloria Cristina

2016-01-01

Fil: Martínez, Gloria Cristina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina. Fil: Marchevsky, Eduardo J. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet – San Luis. Instituto de Química San Luis; Argentina. Fil: Mazza, Silvia M. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina. El intercambio de hierbas y otros productos naturales, tanto para uso medicinal como alimentario y d...

Distribution and abundance of Least Bell’s Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) on the Middle San Luis Rey River, San Diego, southern California—2016 data summary

Science.gov (United States)

Allen, Lisa D.; Howell, Scarlett L.; Kus, Barbara E.

2017-09-29

Executive SummaryWe surveyed for Least Bell’s Vireos (LBVI) (Vireo bellii pusillus) and Southwestern Willow Flycatchers (SWFL) (Empidonax traillii extimus) along the San Luis Rey River, between College Boulevard in Oceanside and Interstate 15 in Fallbrook, California (middle San Luis Rey River), in 2016. Surveys were done from March 30 to July 11 (LBVI) and from May 18 to July 30 (SWFL). We found 142 LBVI territories, at least 106 of which were occupied by pairs. Six additional transient LBVIs were detected. Of 20 banded LBVIs detected in the survey area, 9 had been given full color-band combinations prior to 2016, although we were unable to determine the exact color combination of 1 female LBVI. Seven other LBVIs with single (natal) federal bands were recaptured and banded in 2016. Four vireos with single dark blue federal bands indicating that they were banded as nestlings on the lower San Luis Rey River could not be recaptured for identification.Three SFWL territories were observed in the survey area in 2016. Two territories were occupied by pairs and one by a male of unknown breeding status. Both pairs attempted to nest at least once, and both pairs were successful, fledging three young each. Nesting began in early June and continued into July. Brown-Headed Cowbird (Molothrus ater) eggs were not observed in either nest. An additional 12 transient Willow Flycatchers of unknown subspecies were detected in 2016.Two of the five resident SWFLs were originally banded as nestlings on Marine Corps Base Camp Pendleton. One male and one female were banded as nestlings on Camp Pendleton in 2009 and 2011, respectively. One natal male of unknown breeding status, originally banded as a nestling on the middle San Luis Rey River in 2015, was recaptured and given a unique color combination in 2016. This male was later detected on Marine Corps Base Camp Pendleton.

Historia de la orientación profesional en Argentina

OpenAIRE

Klappenbach, Hugo

2005-01-01

A partir de los años cuarenta, se desarrolló en Argentina la Orientación Profesional , según las orientaciones que en aquellos momentos provenían de España, Francia, Bélgica y Suiza. El trabajo, analiza las primeras experiencias en orientación profesional, desarrolladas tanto en las grandes urbes industriales como Buenos Aires y Rosario, y en pequeños centros urbanos como Tucumán o San Luis. Asimismo, se analiza el contexto institucional y político de tales experiencias, y el decidido respald...

A new record for American Bullfrog (Lithobates catesbeianus in San Juan, Argentina Nuevo registro de rana toro americana (Lithobates catesbeianus en San Juan, Argentina

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Eduardo Sanabria

2011-03-01

Full Text Available We report a new record of Lithobates catesbeianus (American bullfrog from Argentina. L. catesbeianus was first introduced to San Juan Province 11 years ago in Calingasta Department, where the habitat is pre-cordilleran. The new record is for Zonda Department, San Juan Province, in the Monte desert region. Here, L. catesbeianus uses artificial ponds for reproduction and tadpole development. These ponds receive water from an irrigation system that connects the whole agriculture land in the region. The tadpoles use the irrigation canals to move among ponds. We suggest that legislation should be established to prevent future invasions and to achieve sustainable management of the wild American bullfrog populations in San Juan. Prevention of future invasion and management of established populations of this species requires the cooperation of numerous stake holders.Se presenta un nuevo registro de Lithobates catesbeianus (rana toro americana en Argentina. L. catesbeianus fue introducida por primera vez a la provincia de San Juan hace 11 años en el Departamento Calingasta, donde el hábitat es pre-cordillerano. El nuevo registro es para el Departamento Zonda en la provincia de San Juan, en el desierto del Monte. En este sitio, L. catesbeianus usa estanques artificiales para la reproducción y desarrollo del renacuajo. Los estanques reciben agua de un sistema de riego que conecta todas las tierras de la agricultura en la región. Los renacuajos utilizan los canales de riego para moverse entre los estanques. Sugerimos que se establezcan leyes para prevenir invasiones futuras y para lograr un manejo integrado de las poblaciones silvestres de rana toro que se encuentran en San Juan. La prevención de futuras invasiones y el manejo de las poblaciones establecidas de esta especie requieren la cooperación de numerosas entidades tanto gubernamentales como privadas.

Human papillomavirus type 16 variants in cervical intraepithelial neoplasia and invasive carcinoma in San Luis Potosí City, Mexico

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López-Revilla, Rubén; Pineda, Marco A; Ortiz-Valdez, Julio; Sánchez-Garza, Mireya; Riego, Lina

2009-01-01

Background In San Luis Potosí City cervical infection by human papillomavirus type 16 (HPV16) associated to dysplastic lesions is more prevalent in younger women. In this work HPV16 subtypes and variants associated to low-grade intraepithelial lesions (LSIL), high-grade intraepithelial lesions (HSIL) and invasive cervical cancer (ICC) of 38 women residing in San Luis Potosí City were identified by comparing their E6 open reading frame sequences. Results Three European (E) variants (E-P, n = 27; E-T350G, n = 7; E-C188G, n = 2) and one AA-a variant (n = 2) were identified among the 38 HPV16 sequences analyzed. E-P variant sequences contained 23 single nucleotide changes, two of which (A334G, A404T) had not been described before and allowed the phylogenetic separation from the other variants. E-P A334G sequences were the most prevalent (22 cases, 57.9%), followed by the E-P Ref prototype (8 cases, 21.1%) and E-P A404T (1 case, 2.6%) sequences. The HSIL + ICC fraction was 0.21 for the E-P A334G variants and 0.00 for the E-P Ref variants. Conclusion We conclude that in the women included in this study the HPV16 E subtype is 19 times more frequent than the AA subtype; that the circulating E variants are E-P (71.1%) > E-T350G (18.4%) > E-C188G (5.3%); that 71.0% of the E-P sequences carry the A334G single nucleotide change and appear to correspond to a HPV16 variant characteristic of San Luis Potosi City more oncogenic than the E-P Ref prototype. PMID:19216802

Observations on nests of Crocodylus moreletii in San Luis Potosí, Mexico Observaciones sobre nidos de Crocodylus moreletii en San Luis Potosí, México

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Armando H. Escobedo-Galván

2011-03-01

Full Text Available Nesting ecology of Morelet's crocodile (Crocodylus moreletii has been documented since 1940. However, only 2 nests constructed on floating vegetation have been recorded. Here, we presented additional information from a mainland population of C. moreletii in the Ciénega de Cabezas wetland, San Luis Potosí, describing 2 nests constructed on floating mats of cattails. The nests were constructed using Typha sp., close to the main channel. One nest was lost due to flooding, and contained 32 eggs. Seven eggs had a mean 72.6 ± 2.63 mm length (range = 70.0 -75.0 mm, 45.0 ± 2.30 mm width (range = 41.0-48.0 mm, and 140.7 ± 2.98 mm diameter (range = 136.0-145.0 mm. We suggest that the use of floating vegetation for nesting by C. moreletii is related to the availability of aquatic vegetation, combined with the lack of adequate nesting sites on land.La ecología de anidación del cocodrilo de pantano (Crocodylus moreletii ha sido documentada desde 1940. Sin embargo, sólo existen 2 registros de nidos construidos sobre vegetación acuática. Presentamos información adicional de 2 nidos (N1 y N2 construidos en este tipo de hábitat en una población ubicada en la Ciénega de Cabezas en el estado de San Luis Potosí. Los nidos fueron construidos sobre Typha sp., cerca del cauce principal de la ciénega. El N2 se perdió por inundación, en su interior encontramos 32 huevos, los promedios (± SD del largo, ancho y diámetro de 7 huevos fueron 72.6 ± 2.63 mm (rango = 70.0 -75.0 mm, 45.0 ± 2.30 mm (rango = 41.0-48.0 mm, 140.7 ± 2.98 mm (rango = 136.0-145.0 mm, respectivamente. Sugerimos que este tipo de sitios para anidar por parte de C. moreletii está relacionado con la disponibilidad de vegetación acuática, combinado con la ausencia de sitios adecuados en tierra firme.

New record of Boa constrictor occidentalis Philippi, 1873 (Serpentes: Boidae) in San Juan province, Argentina

OpenAIRE

Martínez, Tomás; Rodriguez Muñoz, Melina; Galdeano, Ana; Acosta, Juan

2015-01-01

We document the first record of Boa constrictor in Valle Fértil department, San Juan province, Argentina. The specimen was collected and deposited in the herpetological collection of the Department of Biology, Universidad Nacional San Juan. This record extends the known distribution for this species in San Juan province by 105 km.

Tillandsia myosura Griseb. ex Baker (Bromeliaceae, una nueva cita para la flora de la Provincia de Buenos Aires, (Argentina

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Juan Manuel Cellini

2012-07-01

Full Text Available Se cita por primera vez para la Provincia de Buenos Aires Tillandsia myosura, coleccionada en las inmediaciones del arroyo Pereyra, Parque Provincial y Reserva de la Biosfera Parque Pereyra Iraola (Partido de Berazategui, Buenos Aires, Argentina. Esta especie, conocida hasta el presente sólo para el sur de Uruguay y las provincias de Catamarca, Córdoba, Jujuy, La Rioja, La Pampa, Mendoza, Salta, San Juan, San Luis, Santiago del Estero y Tucumán en Argentina es citada por primera vez para la Provincia de Buenos Aires, ampliándose su límite sur de distribución. En el presente trabajo se describe e ilustra la especie, y se presenta una clave para diferenciarla de especies afines de distribución congruente.

Superinfection between Influenza and RSV Alternating Patterns in San Luis Potosí State, México

Science.gov (United States)

Velasco-Hernández, Jorge Xicoténcatl; Núñez-López, Mayra; Comas-García, Andreu; Cherpitel, Daniel Ernesto Noyola; Ocampo, Marcos Capistrán

2015-01-01

The objective of this paper is to explain through the ecological hypothesis superinfection and competitive interaction between two viral populations and niche (host) availability, the alternating patterns of Respiratory Syncytial Virus (RSV) and influenza observed in a regional hospital in San Luis Potosí State, México using a mathematical model as a methodological tool. The data analyzed consists of community-based and hospital-based Acute Respiratory Infections (ARI) consultations provided by health-care institutions reported to the State Health Service Epidemiology Department from 2003 through 2009. PMID:25803450

Infección congénita por citomegalovirus en recién nacidos del estado de San Luis Potosí, México Congenital cytomegalovirus infection in newborn infants from the state of San Luis Potosí, Mexico

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Daniel E Noyola

2011-12-01

Full Text Available OBJETIVO: Determinar la prevalencia de infección congénita por citomegalovirus en recién nacidos participantes en el programa de tamiz neonatal de los Servicios de Salud de San Luis Potosí. MATERIAL Y MÉTODOS: Se evaluó la presencia de citomegalovirus en muestras de sangre almacenadas en papel filtro. RESULTADOS. Se detectó la presencia de citomegalovirus en 10 (0.68% de 1 457 muestras estudiadas. No se encontraron diferencias en las características de los recién nacidos con infección congénita en comparación con aquéllos sin infección. CONCLUSIONES: Es necesario concientizar a los profesionales de la salud sobre la prevalencia e impacto de la infección congénita por citomegalovirus.OBJECTIVE: To determine the prevalence of congenital cytomegalovirus infection in newborn infants included in the neonatal screening program coordinated by the State Health Services in San Luis Potosí. MATERIAL AND METHODS: We evaluated the presence of cytomegalovirus in blood samples stored in filter paper. RESULTS: Cytomegalovirus was detected in 10 (0.68% of the 1 457 samples included in the study. There were no differences in the characteristics of infants with congenital infection compared to those without infection. CONCLUSIONS: It is necessary to increase awareness of health professionals regarding the prevalence and impact of congenital cytomegalovirus infection.

Arsénico en aguas naturales del sudeste de la provincia de Córdoba, Argentina.

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Alejo Leopoldo Perez Carrera

2013-10-01

Full Text Available En Argentina, existen grandes regiones que por sus características edafoclimáticas, poseen excelentes aptitudes agropecuarias, sin embargo, sufren limitaciones de desarrollo debido a la disponibilidad de agua y la calidad del recurso hídrico disponible. Uno de los elementos químicos presentes en el agua, con mayor impacto sobre la salud humana y animal, es el arsénico. La región afectada, abarca las provincias de Córdoba, La Pampa, Santiago del Estero, San Luis, Santa Fe, Buenos Aires, Chaco, Salta, Tucumán, San Juan y Mendoza. El objetivo de este trabajo es analizar la presencia y distribución del arsénico en agua superficial y subterránea en el sudeste de la provincia de Córdoba, una de las zonas más afectadas de Argentina por la presencia de arsénico en el agua.

Inventario de recursos turísticos como base para la planificación territorial en la zona altiplano de san Luis Potosi, México

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Paloma Blanco López

2015-01-01

Full Text Available Este artículo aborda el análisis del potencial turístico como condición para la planificación turística. Se explica el turismo como factor de desarrollo y a la planificación como instrumento de su gestión. Se utilizan los municipios con mayor potencial turístico en la Zona Altiplano de San Luis Potosí para exponer y ejemplificar los resultados del diagnóstico de la región. Después se evalúan los instrumentos vigentes de planificación turística vigentes en San Luis Potosí y se ofrece una propuesta de aprovechamiento turístico con ayuda de un análisis FODA para los municipios seleccionados.

Abastecimento futuro da água potável abate, análise espacial e da vulnerabilidade da cidade de san luis potosi, méxico

OpenAIRE

Contreras Servín, Carlos; Galindo Mendoza, María Guadalupe

2009-01-01

O presente artigo discute e apresenta as condições físicas, sociais e económicas que afectam a imagem global e os problemas actuais respeito ao abastecimento de água potável da região metropolitana de San Luis Potosi. Entre os temas a abordar está a relação entre disponibilidade hídrica e aumento da população, bem como a evolução de extração de águas subterrâneas. Além disso, a pesquisa mostra um diagnóstico da situação actual de abastecimento de água potável em San Luis Potosi e áreas circun...

Innovations in Stream Restoration and Flood Control Design Meeting Flood Capacity and Environmental Goals on San Luis Obispo Creek

Science.gov (United States)

Wayne Peterson

1989-01-01

Can a natural flowing creek be increased in drainage capacity to protect an adjacent community from flooding while still maintaining a natural habitat? San Luis Obispo constructed one such project on over a mile of Creek as a part of a housing development. The City found that some of the mitigation measures included in the project worked while others did not. In the...

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.

Algal and Cyanobacterial communities in two rivers of the province of San Luis (Argentina subjected to anthropogenic influence

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Jorgelina Daruich

2013-03-01

Full Text Available AIM: The use of biological indicators of pollution has increased in recent years as an alternative to the monitoring of water quality. Phytoplankton community selectively respond to different anthropogenic disturbances, such as water dams and the increase of nutrients coming from city centers, which leads to the eutrophication of the aquatic environment. The objective of this work was to evaluate the composition and the structure of the algal and Cyanobacterial communities in order to prove human influences by the presence of reservoirs with some degree of eutrophication and the impact of urbanization in two rivers at the Bebedero basin in San Luis province (Argentine. METHODS: Four sites were sampled: two of them were placed before dams and villages (V1 and (P1 and two after them (V2 and (P2. Each site was visited in every season of the year: summer, autumn, winter and spring. Qualitative and semi-quantitative phytoplankton samples were taken, and the frequency of occurrence was determined. Variations between pairs of sampling stations were analyzed through the Jaccard similarity and complementarity indices. RESULTS: Ninety two taxa were identified, of which diatoms were the most frequent. The most affected station was P2 with high abundance, less diversity and equitability, whereas the species more tolerant to the presence of organic matter were Melosira varians, Navicula tripunctata, Oscillatoria limosa, Gomphonema parvulum and Coelastrum microporum, and some species of euglenophytas. CONCLUSION: Therefore, the structure and composition of the algal and Cyanobacterial communities allowed us to identify sections more sensitive to human-induced alterations.

Genetic diversity of the Mycobacterium tuberculosis complex in San Luis Potosí, México.

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López-Rocha, Estela; Juárez-Álvarez, Julio; Riego-Ruiz, Lina; Enciso-Moreno, Leonor; Ortega-Aguilar, Francisco; Hernández-Nieto, Julián; Enciso-Moreno, José A; López-Revilla, Rubén

2013-05-01

Although epidemiologic and socioeconomic criteria and biomedical risk factors indicate high-priority for tuberculosis (TB) control in Mexico, molecular epidemiology studies of the disease in the country are scarce. Complete sociodemographic and clinical data were obtained from 248 of the 432 pulmonary TB (PTB) cases confirmed from 2006 to 2010 on the population under epidemiological surveillance in the state of San Luis Potosí, México. From most PTB cases with complete data Mycobacterium tuberculosis complex (MTC) isolates were recovered and their spoligotypes, lineages and families, geographic distribution and drug resistance determined. Pulmonary tuberculosis incidence ranged from 2.4 to 33.4 (cases per 100,000 inhabitants) in the six state sanitary jurisdictions that were grouped in regions of low (jurisdictions I-II-III), intermediate (jurisdictions IV-V) and high incidence (jurisdiction VI) with 6.2, 17.3 and 33.4 rates, respectively. Most patients were poor, 50-years-median-age males and housewives. Among the 237 MTC spoligotyped isolates, 232 corresponded to M. tuberculosis (104 spoligotypes in 24 clusters) and five to M. bovis. The predominant Euro-American lineage was distributed all over the state, the East-Asian lineage (Beijing family) in the capital city, the Indo-Oceanic (Manila family) in eastern localities, and M. bovis in rural localities. In San Luis Potosí TB affects mainly poor male adults and is caused by M. tuberculosis and to a minor extent by M. bovis. There is great genotypic diversity among M. tuberculosis strains, the Euro-American lineage being much more prevalent than the Indo-Oceanic and East-Asian lineages. The frequency of resistant strains is relatively low and not associated to any particular lineage.

The belt of metagabbros of La Pampa: Lower Paleozoic back-arc magmatism in south-central Argentina

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Chernicoff, Carlos J.; Zappettini, Eduardo O.; Villar, Luisa M.; Chemale, Farid, Jr.; Hernández, Laura

2009-12-01

Combined geological, geochronological, geochemical and geophysical studies have led to identification of a large (˜300 km long, ˜5 km wide) N-S trending belt of metagabbros in the province of La Pampa, south-central Argentina. This belt, though only poorly exposed in the localities of Valle Daza and Sierra de Lonco Vaca, stands out in the geophysical data (aeromagnetics and gravity). Modeling of the aeromagnetic data permits estimation of the geometry of the belt of metagabbros and surrounding rocks. The main rock type exposed is metagabbros with relict magmatic nucleii where layering is preserved. A counterclockwise P-T evolution affected these rocks, i.e., during the Middle Ordovician the protolith reached an initial granulite facies of metamorphism (M1), evolving to amphibolite facies (M2). During the Upper Devonian, a retrograde, greenschist facies metamorphism (M3) partially affected the metagabbros. The whole-rock Sm-Nd data suggest a juvenile source from a depleted mantle, with model ages ranging from 552 to 574 Ma, and positive Epsilon values of 6.51-6.82. A crystallization age of 480 Ma is based on geological considerations, i.e. geochronological data of the host rocks as well as comparisons with the Las Aguilas mafic-ultramafic belt of Sierra de San Luis (central Argentina). The geochemical studies indicate an enriched MORB and back-arc signature. The La Pampa metagabbros are interpreted to be originated as a result of the extension that took place in a back-arc setting coevally with the Famatinian magmatic arc (very poorly exposed in the western part of the study area). The extensional event was 'aborted' by the collision of the Cuyania terrane with Pampia-Gondwana in the Middle Ordovician, causing deformation and metamorphism throughout the arc-back-arc region. The similarities between the La Pampa metagabbros and the mafic-ultramafic Las Aguilas belt of the Sierra de San Luis are very conspicuous, for example, the age (Lower Paleozoic), geochemical

Predicting arsenic concentrations in groundwater of San Luis Valley, Colorado: implications for individual-level lifetime exposure assessment.

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James, Katherine A; Meliker, Jaymie R; Buttenfield, Barbara E; Byers, Tim; Zerbe, Gary O; Hokanson, John E; Marshall, Julie A

2014-08-01

Consumption of inorganic arsenic in drinking water at high levels has been associated with chronic diseases. Risk is less clear at lower levels of arsenic, in part due to difficulties in estimating exposure. Herein we characterize spatial and temporal variability of arsenic concentrations and develop models for predicting aquifer arsenic concentrations in the San Luis Valley, Colorado, an area of moderately elevated arsenic in groundwater. This study included historical water samples with total arsenic concentrations from 595 unique well locations. A longitudinal analysis established temporal stability in arsenic levels in individual wells. The mean arsenic levels for a random sample of 535 wells were incorporated into five kriging models to predict groundwater arsenic concentrations at any point in time. A separate validation dataset (n = 60 wells) was used to identify the model with strongest predictability. Findings indicate that arsenic concentrations are temporally stable (r = 0.88; 95 % CI 0.83-0.92 for samples collected from the same well 15-25 years apart) and the spatial model created using ordinary kriging best predicted arsenic concentrations (ρ = 0.72 between predicted and observed validation data). These findings illustrate the value of geostatistical modeling of arsenic and suggest the San Luis Valley is a good region for conducting epidemiologic studies of groundwater metals because of the ability to accurately predict variation in groundwater arsenic concentrations.

[Physical factors influencing the floristic relationships of pinyon pine (Pinaceae) from San Luis Potosi, Mexico].

Science.gov (United States)

Romero, Angélica; Luna, Mario; García, Edmundo

2014-06-01

In plant communities, the species distribution patterns and their relationships with environmental factors are of central importance in ecology. In San Luis Potosí of Mexico, woodlands of Pinus cembroides and P. johannis are sympatric, but P. cembroides tends to be located in South and Southwest slopes, in more disturbed sites; unlike, P. johannis, is mostly distributed in mesic areas, in North and Northeast slopes. The aim of this study was to analyze the influence of some physical factors on the floristic similarity of pinyon pine P. cembroides and P. johannis. The study area was located in the Sierra San Miguelito, San Luis Potosí, Mexico. We selected 40 sampling units spread over an area of 50km2. In each unit, we laid out two 20m long lines perpendicular to each other, in which we recorded cover data of the plant species intercepted. We developed two data matrices, the first one including cover values of 91 species, and the second one, considering seven topographical, climatic, and solar radiation variables. We applied cluster analysis and ordination to explore the influence of environmental variables on the floristic differentiation of pinyon pine woodlands. Clustering showed six groups, the first three characterized by P. cembroides. The ordination showed that variance represented by the first three axes was 65.9%. Axis 1 was positively correlated with altitude and negatively with mean annual temperature; axes two and three, showed low correlation with the variables tested. P. cembroides woodlands and accompanying flora tend to be located in lower altitude, higher mean annual temperature, and mainly in South-Southwestern slopes. In contrast, stands of P. johannis, mixed stands of P. johannis-P. cembroides, and Quercus potosina, were usually founded in greater altitudes, mean annual temperature slightly lower, and North-Northeastern exposure. The sites of these monospecific and mixed woodlands with associated species, indicators of environmental variables

Los hongos poliporoides de la Huasteca Potosina, San Luis Potosí, México

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Victor I. Alvarez

2016-03-01

Full Text Available Se estudiaron 98 especies de hongos poliporoides basados en 358 especímenes procedentes de 15 localidades de nueve municipios de la Huasteca Potosina en el estado de San Luis Potosí. Las 98 especies se clasifican en tres órdenes de Agaricomycetes, el orden Gloeophyllales con una familia, un género y  una especie, el orden Hymenochaetales con 2 familias, 10 géneros y 33 especies, y el orden Polyporales con seis familias,  32 géneros y 64 especies. De éstas, 73 se citan por primera vez para el estado, incluidas Phellinus calcitratus, P. coffeatoporus y Ceriporia reticulata que son nuevos registros para México.Palabras clave: Gloeophyllales, Hymenochaetales, Polyporales, macrohongos xilófagos.

Encefalitis por virus San Luis en la Ciudad de Buenos Aires durante el brote de dengue 2009 Saint Louis encephalitis virus in Buenos Aires city during the outbreak of dengue in 2009

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Horacio López

2011-06-01

Full Text Available Se presenta un paciente de 80 años de edad, residente en la Ciudad de Buenos Aires, con diagnóstico serológico para el virus de la encefalitis de San Luis (SLE durante el brote de dengue ocurrido entre enero y mayo de 2009. Presentaba leucemia linfoide crónica en tratamiento con clorambucilo, cáncer de próstata tratado con hormonoterapia y radioterapia, e imágenes óseas compatibles con metástasis. El estudio del líquido cefalorraquídeo demostró pleocitosis con predominio de mononucleares y proteinorraquia elevada. El resultado de los cultivos para bacterias, hongos y micobacterias, así como el PCR en LCR para herpes virus, HSV, CMV y EBV, fue negativo. Se detectaron anticuerpos IgM para virus SLE tanto en LCR como en muestra de suero, con seroconversión IgG por neutralización en cultivos celulares y resultados negativos para los demás Flavivirus con circulación en Argentina. Se revisan evidencias sobre la presencia de virus de San Luis en nuestro país, y se señala la importancia de la confirmación diagnóstica y el estudio de otros Flavivirus en casos sospechosos de dengue con presentación grave o atípica. Este trabajo remarca la necesidad de fortalecer tanto la vigilancia epidemiológica del virus SLE, como el control vectorial para prevenir las diferentes infecciones transmitidas por mosquitos y conocer su efecto en Salud Pública en la Argentina.We report the case of a male, 80-year-old resident in the City of Buenos Aires, with a diagnosis of St. Louis encephalitis (SLE during a countrywide dengue outbreak, from January to May 2009. The patient had a chronic lymphocytic leukemia treated with chlorambucil, prostate cancer (hormone therapy and radiotherapy and images consistent with bone metastases. Cerebrospinal fluid examination showed pleocytosis with a predominance of mononuclear cells and high protein concentration. Bacteria, fungi and mycobacteria cultures, as well as the PCR for herpes virus, HSV, CMV and EBV, were

La redefinición del espacio público: el caso de las escuelas autogestionadas en Argentina Redefining the public sphere: self-managed schools in Argentina

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Myriam Feldfeber

2003-09-01

Full Text Available El Proyecto de las Escuelas Experimentales o Autogestionadas de la Provincia de San Luis adquiere sentido en el marco de la denominada Transformación Educativa y de las políticas desarrolladas en las últimas décadas en Argentina, que, al igual que en gran parte de los países latinoamericanos, han estado orientadas por discursos y prácticas tendientes a legitimar un nuevo modelo económico, social, político, cultural y educativo. La reforma educativa argentina de la década del '90 puede analizarse como una respuesta frente a la crisis de la matriz estado-céntrica que caracterizó la institucionalización y expansión del sistema educativo. El Proyecto de las Escuelas Experimentales en la Provincia de San Luis, inspirado en el modelo de las charter schools de Estados Unidos, es presentado por el Gobierno de la Provincia como un caso precursor en nivel regional en el marco de lo que caracterizan como la "necesaria e imperante reforma de los sistemas educativos". En este sentido, el objetivo de este trabajo es analizar la lógica que orienta el modelo de estas escuelas así como presentar algunas problemáticas centrales vinculadas con el proceso de implementación de la propuesta.The educational reform that took place in Argentina during the '90s was an answer to the crisis of the state-centered model that fostered the expansion of the school system in the XXth. Century. This reform assumed that the solution to improve the quality of education should focus on such issues as: reducing the role of the state in the system assessment; profoundly reforming the school organization; considering new forms of demand-side financing; introducing incentives; giving autonomy to individual schools; involving non-state institutions in policy management; producing information in order to guarantee the freedom of choice; offering new career for teachers based on merit and derogation of the labor statute. Nevertheless, the educational reform should be

Luis José de Tejada y Guzmán : espejo de peregrinos penitentes

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Darío Achury Valenzuela

1979-03-01

Full Text Available Graciela Maturo, docta escritora argentina, ha escrito un estudio documentado y erudito bajo el rubro de Luis de Tejada y su peregrino místico, editado por el Instituto de Literatura Argentina "Ricardo Rojas", de la Universidad de Buenos Aires.

Genetic diversity of the Mycobacterium tuberculosis Complex in San Luis Potosí, México

Science.gov (United States)

2013-01-01

Background Although epidemiologic and socioeconomic criteria and biomedical risk factors indicate high-priority for tuberculosis (TB) control in Mexico, molecular epidemiology studies of the disease in the country are scarce. Methods Complete sociodemographic and clinical data were obtained from 248 of the 432 pulmonary TB (PTB) cases confirmed from 2006 to 2010 on the population under epidemiological surveillance in the state of San Luis Potosí, México. From most PTB cases with complete data Mycobacterium tuberculosis complex (MTC) isolates were recovered and their spoligotypes, lineages and families, geographic distribution and drug resistance determined. Results Pulmonary tuberculosis incidence ranged from 2.4 to 33.4 (cases per 100,000 inhabitants) in the six state sanitary jurisdictions that were grouped in regions of low (jurisdictions I-II-III), intermediate (jurisdictions IV-V) and high incidence (jurisdiction VI) with 6.2, 17.3 and 33.4 rates, respectively. Most patients were poor, 50-years-median-age males and housewives. Among the 237 MTC spoligotyped isolates, 232 corresponded to M. tuberculosis (104 spoligotypes in 24 clusters) and five to M. bovis. The predominant Euro-American lineage was distributed all over the state, the East-Asian lineage (Beijing family) in the capital city, the Indo-Oceanic (Manila family) in eastern localities, and M. bovis in rural localities. Conclusions In San Luis Potosí TB affects mainly poor male adults and is caused by M. tuberculosis and to a minor extent by M. bovis. There is great genotypic diversity among M. tuberculosis strains, the Euro-American lineage being much more prevalent than the Indo-Oceanic and East-Asian lineages. The frequency of resistant strains is relatively low and not associated to any particular lineage. PMID:23635381

Presence of exotic birds in San Luis Potosi city, Mexican Plateau

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Ramírez-Albores, J.E.

2015-01-01

Full Text Available We recorded 12 exotic bird species in San Luis Potosi, Mexico and adjacent areas. Obtained data were collected during the period August 2012 to August 2013. From the total of recorded species, eight are confirmations (Anas platyrhynchos domesticus, Cairina moschata, Bubulcus ibis, Columba livia, Sturnus vulgaris, Turdus rufopalliatus, Quiscalus mexicanus and Passer domesticus and four are new records (Aratinga canicularis, Amazona oratrix, A. autumnalis and Cyanocorax yncas. Although not all exotic species represent a risk because of the lack of the necessary resources for the establishment of abundant viable populations, it is important to publicize their status in the region. Therefore, knowing the presence of exotic species in a new distribution area is important for monitoring its establishment and colonization, and defining management, control and eradication programs of these species, along with environmental education programs that would lead to a better understanding of impacts that these species can cause.

Clima y compromiso organizacional en una mediana empresa manufacturera de San Luis Potosí, S.L.P.

OpenAIRE

Crespo Bravo, Carolina

2016-01-01

Este trabajo tiene como objetivo principal analizar la relación que existe entre clima y compromiso organizacional y de estos con las características personales. La muestra se integró con 80 trabajadores de una mediana empresa manufacturera ubicada en la ciudad de San Luis Potosí. Se realizó un estudio empírico transversal aplicando cuestionarios para clima organizacional de Araujo et al. (2011), el cual se construyó con características inherentes a las dimensiones: a) estilo de geren...

Maps of the Bonsall area of the San Luis Rey River valley, San Diego County, California, showing geology, hydrology, and ground-water quality

Science.gov (United States)

Izbicki, John A.

1985-01-01

In November 1984, 84 wells and 1 spring in the Bonsall area of the San Luis Rey River valley were inventoried by U.S. Geological Survey personnel. Depth to water in 38 wells ranged from 1.3 to 38 ft and 23 wells had depths to water less than 10 feet. Dissolved solids concentration of water from 29 wells and 1 spring sampled in autumn 1983 and spring 1984 ranged from 574 to 2,370 mgs/L. Groundwater with a dissolved solids concentration less than 1,000 mgs/L was generally restricted to the eastern part of the aquifer. The total volume of alluvial fill in the Bonsall area is 113,000 acre-feet; the amount of groundwater storage available in the alluvial aquifer is 18,000 acre-feet. The alluvial aquifer is, in part, surrounded and underlain by colluvium and weathered crystalline rock that add some additional groundwater storage capacity to the system. Data in this report are presented on five maps showing well locations , thickness of alluvial fill, water level contours in November 1983 and hydrographs of selected wells, groundwater quality in spring 1960 and graphs showing changes in dissolved solids concentrations of water from selected wells with time, and groundwater quality in spring 1984. This report is part of a larger cooperative project between the Rainbow Municipal Irrigation District and the U.S. Geological Survey. The purpose of the larger project is to develop an appropriate groundwater management plan for the Bonsall area of the San Luis Rey River valley. (USGS)

Environmental laws for mining activities in Provincia de San Juan (Argentina), gravel mines exploitation

International Nuclear Information System (INIS)

Ramirez, M.; Carrascosa, H.

2007-01-01

This paper analyses San Juan Province - Argentina prevailing environmental legislation for mining activity and gravel mines. The study focuses the subject from a mining engineering point of view. (author)

Visual Resource Analysis for Solar Energy Zones in the San Luis Valley

Energy Technology Data Exchange (ETDEWEB)

Sullivan, Robert [Argonne National Laboratory (ANL), Argonne, IL (United States). Environmental Science Division; Abplanalp, Jennifer M. [Argonne National Laboratory (ANL), Argonne, IL (United States). Environmental Science Division; Zvolanek, Emily [Argonne National Laboratory (ANL), Argonne, IL (United States). Environmental Science Division; Brown, Jeffery [Bureau of Land Management, Washington, DC (United States). Dept. of the Interior

2016-01-01

This report summarizes the results of a study conducted by Argonne National Laboratory’s (Argonne’s) Environmental Science Division for the U.S. Department of the Interior Bureau of Land Management (BLM). The study analyzed the regional effects of potential visual impacts of solar energy development on three BLM-designated solar energy zones (SEZs) in the San Luis Valley (SLV) in Colorado, and, based on the analysis, made recommendations for or against regional compensatory mitigation to compensate residents and other stakeholders for the potential visual impacts to the SEZs. The analysis was conducted as part of the solar regional mitigation strategy (SRMS) task conducted by BLM Colorado with assistance from Argonne. Two separate analyses were performed. The first analysis, referred to as the VSA Analysis, analyzed the potential visual impacts of solar energy development in the SEZs on nearby visually sensitive areas (VSAs), and, based on the impact analyses, made recommendations for or against regional compensatory mitigation. VSAs are locations for which some type of visual sensitivity has been identified, either because the location is an area of high scenic value or because it is a location from which people view the surrounding landscape and attach some level of importance or sensitivity to what is seen from the location. The VSA analysis included both BLM-administered lands in Colorado and in the Taos FO in New Mexico. The second analysis, referred to as the SEZ Analysis, used BLM visual resource inventory (VRI) and other data on visual resources in the former Saguache and La Jara Field Offices (FOs), now contained within the San Luis Valley FO (SLFO), to determine whether the changes in scenic values that would result from the development of utility-scale solar energy facilities in the SEZs would affect the quality and quantity of valued scenic resources in the SLV region as a whole. If the regional effects were judged to be significant, regional

Stenocercus doellojuradoi (Iguanidae, Tropidurinae): una nueva especie para la provincia de San Juan, Argentina

OpenAIRE

Laspiur, Alejandro; Acosta, Juan Carlos

2006-01-01

República Argentina, Provincia de San Juan, Depto. Valle Fértil, 3 km al norte de la localidad de Las Tumanas sobre la Ruta Provincial 510 (30°52’ S, 67°20’ W). COLECTOR: Alejandro Laspiur. FECHA: 25 /02/ 2006. MATERIAL DE REFERENCIA: Instituto y Museo de Ciencias Naturales, Universidad Nacional de San Juan: IMCNUNSJ 3000. Un ejemplar macho (LHC: 54 mm.).

Confirmación de Amphisbaena angustifrons plumbea (Squamata: Amphisbaenidae) en la provincia de San Juan, Argentina

OpenAIRE

Acosta, Juan Carlos; Murúa, Fernando; Ortiz, Graciela

1996-01-01

Amphisbaena angustifrons plumbea (Gray). República Argentina, provincia de San Juan, Valle del Tulum, departamento Chimbas, Villa Sarmiento (31º 29' S, 69º 30' W) 12 de noviembre de 1995. Un ejemplar adulto, IMCN - UNSJ 102 (Instituto y Museo de Ciencias Naturales, Universidad Nacional de San Juan).

Offshore geology and geomorphology from Point Piedras Blancas to Pismo Beach, San Luis Obispo County, California

Science.gov (United States)

Watt, Janet Tilden; Johnson, Samuel Y.; Hartwell, Stephen R.; Roberts, Michelle

2015-01-01

Marine geology and geomorphology were mapped along the continental shelf and upper slope between Point Piedras Blancas and Pismo Beach, California. The map area is divided into the following three (smaller) map areas, listed from north to south: San Simeon, Morro Bay, and Point San Luis. Each smaller map area consists of a geologic map and the corresponding geophysical data that support the geologic mapping. Each geophysical data sheet includes shaded-relief multibeam bathymetry, seismic-reflection-survey tracklines, and residual magnetic anomalies, as well as a smaller version of the geologic map for reference. Offshore geologic units were delineated on the basis of integrated analysis of adjacent onshore geology, seafloor-sediment and rock samples, multibeam bathymetry and backscatter imagery, magnetic data, and high-resolution seismic-reflection profiles. Although the geologic maps are presented here at 1:35,000 scale, map interpretation was conducted at scales of between 1:6,000 and 1:12,000.

Stenocercus doellojuradoi (Iguanidae, Tropidurinae: una nueva especie para la provincia de San Juan, Argentina

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Laspiur, Alejandro

2006-05-01

Full Text Available República Argentina, Provincia de San Juan, Depto. Valle Fértil, 3 km al norte de la localidad de Las Tumanas sobre la Ruta Provincial 510 (30°52’ S, 67°20’ W. COLECTOR: Alejandro Laspiur. FECHA: 25 /02/ 2006. MATERIAL DE REFERENCIA: Instituto y Museo de Ciencias Naturales, Universidad Nacional de San Juan: IMCNUNSJ 3000. Un ejemplar macho (LHC: 54 mm..

Introduction to the special collection of papers on the San Luis Basin Sustainability Metrics Project: a methodology for evaluating regional sustainability.

Science.gov (United States)

Heberling, Matthew T; Hopton, Matthew E

2012-11-30

This paper introduces a collection of four articles describing the San Luis Basin Sustainability Metrics Project. The Project developed a methodology for evaluating regional sustainability. This introduction provides the necessary background information for the project, description of the region, overview of the methods, and summary of the results. Although there are a multitude of scientifically based sustainability metrics, many are data intensive, difficult to calculate, and fail to capture all aspects of a system. We wanted to see if we could develop an approach that decision-makers could use to understand if their system was moving toward or away from sustainability. The goal was to produce a scientifically defensible, but straightforward and inexpensive methodology to measure and monitor environmental quality within a regional system. We initiated an interdisciplinary pilot project in the San Luis Basin, south-central Colorado, to test the methodology. The objectives were: 1) determine the applicability of using existing datasets to estimate metrics of sustainability at a regional scale; 2) calculate metrics through time from 1980 to 2005; and 3) compare and contrast the results to determine if the system was moving toward or away from sustainability. The sustainability metrics, chosen to represent major components of the system, were: 1) Ecological Footprint to capture the impact and human burden on the system; 2) Green Net Regional Product to represent economic welfare; 3) Emergy to capture the quality-normalized flow of energy through the system; and 4) Fisher information to capture the overall dynamic order and to look for possible regime changes. The methodology, data, and results of each metric are presented in the remaining four papers of the special collection. Based on the results of each metric and our criteria for understanding the sustainability trends, we find that the San Luis Basin is moving away from sustainability. Although we understand

Caracterización de las principales pesquerías del golfo San Jorge Patagonia, Argentina Characterization of the main fisheries in San Jorge Gulf, Patagonia, Argentina

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María Eva Góngora

2012-03-01

Full Text Available En el golfo San Jorge se desarrollan varias actividades económicas de relevancia, entre ellas dos pesquerías industriales: la pesquería de merluza común (Merluccius hubbsi Marini, 1933 y la pesquería de langostino patagónico (Pleoticus muelleri Bate, 1888, ambas se solapan espacial y temporalmente. En la pesquería de merluza del golfo San Jorge opera una flota fresquera de altura, compuesta por unas 20 embarcaciones, y una flota costera, compuesta por unas 30 embarcaciones. En esta pesquería se pesca alrededor del 10% de lo capturado en el stock sur de merluza. En la pesquería de langostino del golfo San Jorge opera una flota congeladora tangonera compuesta por 80 embarcaciones, responsable de más del 75% de los desembarques de langostino realizados en la República Argentina. Ambas pesquerías tienen como principal problema la captura incidental de merluza, en una de sus principales áreas de cría. En el presente trabajo se describe el manejo actual en las pesquerías del golfo San Jorge, el cual consiste principalmente en cierres espaciales y temporales para la pesca de langostino, y zonificaciones por estrato de flota para la merluza. En ninguna de las dos pesquerías descriptas se han tomado medidas que reduzcan eficazmente la captura incidental.In San Jorge Gulf, several important economic activities are developed, including two industrial fisheries: hake (Merluccius hubbsi Marini, 1933 and Argentine red shrimp (Pleoticus muelleri Bate, 1888. Both overlap spatially and temporally. The San Jorge Gulf hake fishery consists of a high-seas ice trawler fleet (n = 20 fishing vessels and a coastal fleet (n = 30 fishing vessels. These fisheries capture about 10% of the catch of the southern hake stock. The Argentine red shrimp fishery consists of a double-beam trawler fleet with 80 freezer vessels, responsible for more than 75% of shrimp landings in Argentina. The main problem of both fisheries is the bycatch of hake in one of its

Primeros registros del ibis blanco (Eudocimus albus en el Altiplano de San Luis Potosí, México

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Natalia de Gortari-Ludlow

2012-07-01

Full Text Available Reportamos dos observaciones visuales del ibis blanco (Eudocimus albus de la Laguna de Los Coyotes, un afluente natural del manantial la Media Luna que se localiza en el municipio de Rioverde, San Luis Potosí, México. Los avistamientos ocurrieron en septiembre de 2011 y febrero de 2012. Este es el primer reporte de la presencia de esta ave en dicha localidad, y es importante porque la especie ha sido escasamente encontrada en ambientes no ribereños del Altiplano Mexicano.

Food, feeding, and refuelling of Red Knots during northward migration at San Antonio Oeste, Rio Negro, Argentina

NARCIS (Netherlands)

Gonzalez, PM; Piersma, T; Verkuil, Y; González, Patricia M.

1996-01-01

We studied the food and feeding ecology of Red Knots Calidris canutus rufa on an area of rocky flat, or restinga, near San Antonio Oeste in the northwest of Golfo San Matias, Provincia de Rio Negro, Argentina in March 1992. These Red Knots are on their way north, from ''wintering'' areas in Tierra

Petrogenesis of the postcollisional Middle Devonian monzonitic to granitic magmatism of the Sierra de San Luis, Argentina

Science.gov (United States)

López de Luchi, Mónica G.; Siegesmund, Siegfried; Wemmer, Klaus; Nolte, Nicole

2017-09-01

Middle Devonian granitoids intruded the Eastern Sierras Pampeanas basement ca. 600 km east of the inferred proto-Pacific margin of Gondwana along which a ca. 390 Ma collisional event developed. In the Sierra de San Luis, voluminous Middle Devonian (393-382 Ma) batholiths are composed of I- to A-type hybrid Monzonite and Granite suites. Shoshonite and subordinated high-K series, stocks, synplutonic dikes and enclaves make up the Monzonite Suite; rocks are metaluminous alkali-calcic magnesian porphyritic or equigranular monzonite, quartz monzonite, monzodiorite and scarce monzogabbro. High-K and subordinated shoshonite series metaluminous to mildly peraluminous magnesian alkali-calcic to calc-alkalic porphyritic or equigranular quartz monzonite, granodiorite, monzogranite and equigranular leucomonzogranites make up the Granite Suite plutons and batholiths. Only a small group of highly evolved granites are ferroan. SiO2 (46-62%), Cr, Ni, V, Sc, LILE, LREE, Th, Zr and variable, Sr/Y, (La/Yb)N and (Tb/Yb)N, smooth Eu/Eu*, moderate Na2O (ca 3.5), and troughs at Nb and Ta for Monzonite Suite rocks suggest an subduction-related enriched lithospheric mantle source. Sm-Nd data (TDM 0.98-1.08 Ga, εNd(380 Ma) 0.66-1.47) and 87Sr/86Sri (0.703520-0.704203) are compatible with an enriched mantle source. The metaluminous porphyritic quartz monzonite-monzogranite and the mildly peraluminous equigranular biotite monzogranites of the Granite Suite are characterized by relatively moderate Al2O3, CaO, and 87Sr/86Sri, high LILE, Cr, variable Sr/Y, (La/Yb)N and Eu/Eu* and low Rb/Sr ( 1.5, ASI 1.05-1.18, and Ga/Al 2.6-3.9, εNd(380 Ma) - 3.74 to - 3.95 and (87Sr/86Sr)i 0.710743-0.712955 which would point to metasedimentary or felsic igneous crustal sources. Nevertheless their TDM 1.36-1.38 Ga is considerably younger than the mean 1.8-1.6 Ga Eastern Sierras Pampeanas crustal residence age and less radiogenic. Middle Devonian magmatism would record an episode of crustal growth by enriched

Biodiversity of Myxomycetes from the Monte Desert of Argentina

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Lado, C.

2011-06-01

Full Text Available A biodiversity survey for myxomycetes was carried out in the Monte Desert (Argentina and surrounding areas in November 2006 and late February and March 2007. Specimens were collected in seven different provinces (Catamarca, Jujuy, La Rioja, Salta, San Juan, San Luis and Tucumán, between 23º and 33º S latitude, and a total of 105 localities were sampled. Cacti and succulent plants were the most common type of substrate investigated, but shrubs and herbs characteristic of this biome were also included in the survey. Almost six hundred specimens of myxomycetes from 72 different species in 22 genera were collected either in the field, or from moist chamber cultures prepared with samples of plant material obtained from the same collecting sites. The results include 1 species new to science, Macbrideola andina three more species recently described based on material from this survey, 5 species cited for the first time for the Neotropics, 11 new records for South America and 38 new records for Argentina. Taxonomic comments on rare or unusual species are included and illustrated with photographs by LM and SEM. Data are presented on the development of some species and microenvironmental factors are discussed. An analysis of the biodiversity of myxomycetes in this area, and a comparison with other desert areas, are included.

Con el objetivo de estudiar la biodiversidad de Myxomycetes en el Desierto de Monte (Argentina y áreas circundantes, se realizó un muestreo en los meses de noviembre de 2006 y febrero y marzo de 2007. Se recolectaron especímenes en un total de 105 localidades pertenecientes a siete provincias (Catamarca, Jujuy, La Rioja, Salta, San Juan, San Luis y Tucumán, situadas entre los paralelos 23º y 33º de latitud sur. Los cactus y plantas suculentas fueron los tipos de sustratos más estudiados, pero también se analizaron arbustos y plantas herbáceas características de este bioma. Casi 600 especímenes de mixomicetes

Potential field studies of the central San Luis Basin and San Juan Mountains, Colorado and New Mexico, and southern and western Afghanistan

Science.gov (United States)

Drenth, Benjamin John

This dissertation includes three separate chapters, each demonstrating the interpretive utility of potential field (gravity and magnetic) geophysical datasets at various scales and in various geologic environments. The locations of these studies are the central San Luis Basin of Colorado and New Mexico, the San Juan Mountains of southwestern Colorado, and southern and western Afghanistan. The San Luis Basin is the northernmost of the major basins that make up the Rio Grande rift, and interpretation of gravity and aeromagnetic data reveals patterns of rifting, rift-sediment thicknesses, distribution of pre-rift volcanic and sedimentary rocks, and distribution of syn-rift volcanic rocks. Syn-rift Santa Fe Group sediments have a maximum thickness of ˜2 km in the Sanchez graben near the eastern margin of the basin along the central Sangre de Cristo fault zone. Under the Costilla Plains, thickness of these sediments is estimated to reach ˜1.3 km. The Santa Fe Group sediments also reach a thickness of nearly 1 km within the Monte Vista graben near the western basin margin along the San Juan Mountains. A narrow, north-south-trending structural high beneath San Pedro Mesa separates the graben from the structural depression beneath the Costilla Plains. Aeromagnetic anomalies are interpreted to mainly reflect variations of remanent magnetic polarity and burial depth of the 5.3-3.7 Ma Servilleta basalt of the Taos Plateau volcanic field. Magnetic-source depth estimates indicate patterns of subsidence following eruption of the basalt and show that the Sanchez graben has been the site of maximum subsidence. One of the largest and most pronounced gravity lows in North America lies over the rugged San Juan Mountains in southwestern Colorado. A buried, low-density silicic batholith related to an Oligocene volcanic field coincident with the San Juan Mountains has been the accepted interpretation of the source of the gravity low since the 1970s. However, this interpretation was

[Future status of ischaemic heart disease in the state of San Luis Potosí: A predictive dynamic model].

Science.gov (United States)

Gaytán-Hernández, Darío; Díaz-Oviedo, Aracely; Gallegos-García, Verónica; Terán-Figueroa, Yolanda

To develop a predictive dynamic model to generate and analyse the future status of the incidence rate of ischaemic heart disease in a population of 25 years and over in Mexico, according to the variation in time of some risk factors. Retrospective ecological study performed during the period 2013-2015, in San Luis Potosí City, Mexico. Secondary databases that corresponded to the years 2000, 2005, and 2010, were used along with official indicators of the 58 municipalities of the state of San Luis Potosí. Eight indicators were analysed at municipality level, using principal components analysis, structural equation modelling, dynamic modelling, and simulation software methods. Three components were extracted, which together explained 80.43% of the total variance of the official indicators used. The second component had a weight of 16.36 units that favoured an increase of the disease analysed. This component was integrated only by the indicator AGE 60-64 and the expected stage of it increasing. The structural model confirmed that the indicators explain 42% of the variation of this disease. The possible stages for the years 2015, 2020, and 2025 are 195.7, 240.7, and 298.0, respectively for every 100,000 inhabitants aged 25 and over. An exponential increase in the incidence rate of ischaemic heart disease is expected, with the age of 60-64 years being identified as the highest risk factor. Copyright © 2017 Instituto Nacional de Cardiología Ignacio Chávez. Publicado por Masson Doyma México S.A. All rights reserved.

View of sand dunes in the San Juan Province of Western Argentina

Science.gov (United States)

1975-01-01

A near vertical view of sand dunes in the San Juan Province of Western Argentina, as photographed from the Apollo spacecraft in Earth orbit during the joint U.S.-USSR Apollo Soyuz Test Project (ASTP) mission. The picture was taken at an altitude of 220 kilometers (136 statute miles). The photograph was taken at an altitude of 228 kilometers (141 statute miles).

Assessment of continuous oil and gas resources in the San Jorge Basin Province, Argentina, 2017

Science.gov (United States)

Schenk, Christopher J.; Mercier, Tracey J.; Hawkins, Sarah J.; Tennyson, Marilyn E.; Marra, Kristen R.; Finn, Thomas M.; Le, Phuong A.; Brownfield, Michael E.; Leathers-Miller, Heidi M.; Woodall, Cheryl A.

2017-07-18

Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean undiscovered, technically recoverable resources of 78 million barrels of oil and 8.9 trillion cubic feet of gas in the San Jorge Basin Province, Argentina.

Stenocercus doellojuradoi (Iguanidae, Liolaeminae): una nueva especie para la provincia de San Juan, Argentina

OpenAIRE

Laspiur, Alejandro; Acosta, Juan Carlos

2006-01-01

República Argentina, Provincia de San Juan, Depto. Valle Fértil, 3 km al norte de la localidad de Las Tumanas sobre la Ruta Provincial 510 (30°52’ S, 67°20’ W). COLECTOR: Alejandro Laspiur. FECHA: 25 /02/ 2006. MATERIAL DE REFERENCIA: Instituto y Museo de Ciencias Naturales, Universidad Nacional de San Juan: IMCNUNSJ 3000. Un ejemplar macho (LHC: 54 mm.).

Environmental geologic analysis of Rio de las Taguas basin Departmento Iglesia San Juan Argentina

International Nuclear Information System (INIS)

Arroqui Langer, A.; Cardus, A.; Sindern, S.; Nozica, G.

2007-01-01

A mineral environmental research project results where it has been located in Rio de las Taguas basin, Departamento Iglesia, Provincia de San Juan, Argentina. It has been placed in frontal Andean mountain in San Juan. In this geographic framework has been developed Au and Ag mineral project in order the world scale. The aim of this article is has been related the mineral and geological units bet wen the basin chemistry as well as to carry out future measurements mines impacts in this area. (author)

La cofradía de la Santa Veracruz y los planos arquitectónicos más antiguos de San Luis Potosí: Un ejemplo del corporativismo novohispano a través de la arquitectura

OpenAIRE

Hernández Soubervielle, Armando

2014-01-01

El presente artículo discurre por tres ejes fundamentales. El primero de ellos es aportar información obtenida de fuentes primarias, referente a la cofradía de la Santa Veracruz de San Luis Potosí, lo que sirve para dar a conocer y analizar por primera vez los planos arquitectónicos más antiguos (1620) de San Luis Potosí, mismos que hasta ahora estaban inéditos. A la luz de estos planos y su interpretación, se mostrará su relación con el tratado de arquitectura de Sebastián Serlio y de cómo e...

Danger on mountain roads, Iglesia Department, San Juan, Argentina

International Nuclear Information System (INIS)

Varela, S.; Puertas, M.

2007-01-01

This paper is related to Mining Projects at Valle del Cura - Iglesia Department-San Juan Province-Argentina Republic. Basis for an Integrated Management of a Sustainable Mining.It aims at locating and analyzing natural dangers which may interfere high mountain paths, such as climatic, anthropic and/or tectonic factors since they may stop a region development. A hillside, a mountainside,a talus or a slope may have, due to their extensive areas, either lithological or structural variations which might determine the presence of un stability phenomena.The cordillera n Iglesia sector major dangers are related to mass displacement movements as a result of the great quantity of unstable detritus situated in valleys slopes.Landsat images, aerial photographs, topographic and geological maps data allowed to detect several sectors that may generate mass displacement movements, Arroyo de Aguas Negras rising sector was selected because it is on the right of National Route No. 150 trace. It is not only a national, but also an international route that connects Argentina and Chile.(author)

Primer registro de artropodofauna cadavérica en sustratos humanos y animales en San Juan, Argentina First record of cadaverous arthropod fauna in human and animal substrates in San Juan, Argentina

Directory of Open Access Journals (Sweden)

Fernando H. Aballay

2008-12-01

Full Text Available En el presente trabajo se estudiaron los artrópodos carroñeros que acudieron a cadáveres de vertebrados al aire libre en la provincia de San Juan, Argentina. El objetivo fue inventariar la composición específica de la artropodofauna cadavérica, asociada a diferentes sustratos de vertebrados en descomposición. Se colectaron muestras de artrópodos sobre restos animales y humanos en condiciones de campo y sobre cadáveres de cerdos domésticos colocados al aire libre bajo condiciones controladas. Se registraron, por primera vez para la provincia de San Juan, 40 especies de artropodofauna tanatológica incluidas en cuatro órdenes y 15 familias. Se incorpora, como primera cita para la fauna forense argentina, un necrófago: Megelenophorus americanus Lacordaire (Coleoptera: Tenebrionidae, y tres necrófilas: Polybia ruficeps Schrottky (Hymenoptera: Vespidae, Pheidole bergi Mayr (Hymenoptera, Formicidae, Myrmicinae y Ectatomma brunneum Smith (Hymenoptera, Formicidae, Ponerinae. Se citan 18 especies necrófagas, 18 necrófilas, una omnívora y seis oportunistas sobre siete diferentes sustratos cadavéricos de vertebrados. Se brindan nuevos registros de distribución de 18 especies de insectos. Se confirma la estacionalidad invernal de Callíphora vicina Robineau-Desvoidy (Diptera: Calliphoridae.In order to determine the specific composition of cadaverous arthropod fauna associated to different decomposing vertebrate substrates, we studied the carrion arthropods that feed on outdoor carcasses in San Juan province, Argentina. Arthropods were collected on animal and human remains in the field and on carcasses of domestic pig placed outdoors under controlled conditions. Forty species of carrion arthropods belonging to four orders and 15 families were recorded for the first time in this province. We present the first record of forensic fauna in Argentina of the necrophagous species Megelenophorus americanus (Coleoptera: Tenebrionidae and three

Monitoring organo chlorine pesticides in surface and ground water in San Juan (Argentina); Determinacion de pesticiddas organoclorados en aguas superficiales y subterraneas de la provincia de San Juan (Argentina)

Energy Technology Data Exchange (ETDEWEB)

Omar, B.; Suero, E.; Augusto, M.; Gimenez, M.; Flores, N.

2003-07-01

The level of contamination with organo chlorine pesticides and the occurrence of their degradation products in the basins of the two main rivers. San Juan and Jackal, of the Province of San Juan, Argentina, were determined. Surface and groundwater samples from both river basins were evaluated by capillary GC and results confirmed with Mass Spectrometry. Chemicals investigated were 16 organo chlorine pesticides. For a total number of 314 samples, the percentage of positive samples ranged from 68.6% for Heptachlor to 16% for Aldrin. concentration values and the percentage of positive samples in groundwater were significantly lower than those found in surface water. Samples taken in different seasons did not show significant differences. (Author) 18 refs.

Water Supply: Management of Water Sources in the City of San Luis Potosí (México, 1831-1887

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Yuritzi Hernández Fuentes

2015-07-01

Full Text Available This paper proposes an approach about the management of water sources, hydraulic systems and the measures taken by the city government of San Luis Potosí (México concerning the need of water supply during the years 1831 to 1886. This paper examines two important projects on water management in the city: the aqueduct of La Cañada del Lobo and the policies taken by the authorities on waterways through La Corriente. Both projects faced several problems, including the outbreak of illnesses associated with bodies of water and shortage of liquid flow through the aqueduct of La Cañada del Lobo.

Paradiplomacia en las relaciones Chileno-Argentinas : la integración desde Coquimbo y San Juan

NARCIS (Netherlands)

Alvarez, M.

2016-01-01

The dissertation studies how non-central governments inserted themselves in the integration process between Argentina and Chile. As a case study, the link between the Argentinean province of San Juan and the Chilean region of Coquimbo was addressed through an extensive literature review and more

Association between Urine Fluoride and Dental Fluorosis as a Toxicity Factor in a Rural Community in the State of San Luis Potosi

OpenAIRE

Jarquín-Yañez, Lizet; Mejía-Saavedra, José de Jesús; Molina-Frechero, Nelly; Gaona, Enrique; Rocha-Amador, Diana Olivia; López-Guzmán, Olga Dania; Bologna-Molina, Ronell

2015-01-01

Objective. The aim of this study is to investigate urine fluoride concentration as a toxicity factor in a rural community in the state of San Luis Potosi, Mexico. Materials and Methods. A sample of 111 children exposed to high concentrations of fluoride in drinking water (4.13?mg/L) was evaluated. Fluoride exposure was determined by measuring urine fluoride concentration using the potentiometric method with an ion selective electrode. The diagnosis of dental fluorosis was performed by clinica...

The incidence of essential competences and the owner-director on strong growth of a manufacturing SMEs in San Luis Potosí, Mexico

OpenAIRE

Molina Sánchez, Rubén

2009-01-01

This article is intended to analyse a group of manufacturing SMEs in San Luis Potosí, Mexico, in order to explain the characteristics which bring about their high level of growth. The context was therefore adapted to a research model sponsored by OECD, which gives pride of place to qualitative methods, well-founded theory and the use of software to analyse information given by interviewees. Categories of perception of innovation were identified (that is, control of information, essential comp...

Minería, conflicto y mediadores locales: Minera San Xavier en Cerro de San Pedro, México Mineira, conflito e mediadores locais: Minera San Xavier em Cerro de San Pedro Mining, conflict and local brokers: Minera San Xavier in Cerro de San Pedro

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Hernán Horacio Schiaffini

2011-12-01

Full Text Available Este trabajo indaga en las instancias de mediación que intervienen en la articulación de procesos económicos de gran escala y su puesta en práctica local. Basándonos en el conflicto que se produjo en el Municipio de Cerro de San Pedro (San Luis Potosí, México entre la empresa Minera San Xavier y el Frente Amplio Opositor (FAO a la misma, aplicamos el método etnográfico con el objetivo de describir las estructuras locales de mediación política y analizar sus prácticas y racionalidad. Intentamos demostrar así la importancia de los factores políticos locales en las vinculaciones entre estado, empresa y población.Este trabalho indaga nas instâncias de mediação que intervêm em processos econômicos de grande escala e sua posta em prática local. Baseando-nos no conflito no Cerro de San Pedro (San Luis Potosí, México entre a empresa Minera San Xavier e a Frente Amplio Opositor (FAO aplicamos o método etnográfico pra descrever as estruturas de mediação política locais e analisar suas práticas e racionalidade. Tenta-se demonstrar assim a importância dos fatores políticos locais nas vinculações entre estado, empresa e população.This paper investigates in instances of mediation involved in large-scale economic processes and local implementation. Analyzing the conflict in Cerro de San Pedro (San Luis Potosí, México among San Xavier mining company and the Frente Amplio Opositor (FAO, it applies an ethnographic approach to describe the local structures of political mediation and its practices and rationality. The work shows the relevance of local factors in the relationships between State, company and people.

Prevalencia de anticuerpos antirrubéola y antiparvovirus B19 en embarazadas de la ciudad de Córdoba y en mujeres en edad fértil de la ciudad de Villa Mercedes, San Luis Prevalence of anti-rubella and anti-parvovirus B19 antibodies in pregnant women in the city of Córdoba, and in women of fertile age in the city of Villa Mercedes, province of San Luis

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M. S. Pedranti

2007-03-01

Full Text Available Se determinó la prevalencia de anticuerpos contra virus rubéola en 100 muestras de suero de mujeres embarazadas que concurrían a chequeos de rutina en una institución privada de la ciudad de Córdoba y en 100 muestras de suero de mujeres en edad fértil (42 de ellas embarazadas que concurrían a dispensarios de la ciudad de Villa Mercedes, provincia de San Luis. En las muestras tomadas en la ciudad de Córdoba también se determinaron anticuerpos IgG contra parvovirus B19. Por inhibición de la hemoaglutinación, los resultados de los sueros de Córdoba mostraron una prevalencia de anticuerpos antirrubéola del 98%; en las muestras de Villa Mercedes se observó una prevalencia del 96%. La prevalencia de anticuerpos antiparvovirus B19 en los sueros de Córdoba fue del 66%. Estos datos se asemejan a los de la bibliografía mundial y fundamentan el interés en continuar estudios de este tipo para monitorear el plan de inmunización para rubéola, que en Argentina se lleva a cabo desde 1997, como así también la relevancia de la determinación de IgM antiparvovirus B19 en aquellas embarazadas sintomáticas con resultado negativo para rubéola, a fin de elaborar un diagnóstico diferencial.We determined the prevalence of anti-rubella antibodies in 100 serum samples from pregnant women who attended routine examination at a private institution in the city of Córdoba, and in 100 serum samples from women of gestational age, 42 of whom were pregnant, attending health centres in the city of Villa Mercedes, province of San Luis. IgG antibodies against parvovirus B19 were also determined in the serum samples from Córdoba. Using the hemmagglutination inhibition test, we found a 98 % prevalence of anti-rubella antibodies among pregnant women in Córdoba and of 96 % among the women in Villa Mercedes, whereas the prevalence of anti-parvovirus B19 was 66% in the serum samples from Córdoba. These results coincide with those reported for other cities in the

Radiological environmental monitoring around the mining sites in Argentina

International Nuclear Information System (INIS)

Quintana, Eduardo E.; Gomez, Juan C.; Palacios, Miguel A.

2004-01-01

The uranium mining industry began its development in Argentina in the fifties. Since then, several installations have operated as uranium underground mining until late seventies, when that mines were closed. Since then, open pit exploitation has been used. Milling facilities were installed in the mining areas or close to them. The environmental radiological surveillance and the impact assessment presented in this work are referred to the uranium ore mining and milling plants Tonco, in Salta province; Pichinan, in Chubut province; San Rafael and Malargue, in Mendoza province; Los Gigantes, in Cordoba province; La Estela, in San Luis province and Los Colorados in La Rioja province. The environmental radiological surveillance programme results carried out from the beginning of the operations are presented and include uranium and radium concentrations in surface waters and sediments. The results obtained in waters upstream and downstream the uranium mining complexes are compared and no significant differences were observed. Moreover, taking into consideration the critical exposition pathways of the population living in the area, no significant levels of exposition were observed. (author)

Niveles de arsénico y vanadio en aguas naturales en el Departamento de Unión, sudeste de la provincia de Córdoba, Argentina.

OpenAIRE

Pérez Carrera, Alejo; Fernández Cirelli, Alicia

2013-01-01

En Argentina, existen grandes regiones que por sus características edafoclimáticas, poseen excelentes aptitudes agropecuarias, sin embargo, sufren limitaciones de desarrollo debido a la disponibilidad de agua y la calidad del recurso hídrico disponible. Uno de los elementos químicos presentes en el agua, con mayor impacto sobre la salud humana y animal, es el arsénico. La región afectada, abarca las provincias de Córdoba, La Pampa, Santiago del Estero, San Luis, Santa Fe, Buenos Aires, Chaco,...

Anfibios de las Sierras Pampeanas Centrales de Argentina: diversidad y distribución altitudinal

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Julián N. Lescano

2015-09-01

Full Text Available Amphibians from Sierras Pampeanas Centrales of Argentina: diversity and altitudinal distribution. Sierras Pampeanas Centrales (SPC mountains are located in Córdoba and San Luis provinces (Argentina and represent an area of unique biogeographic importance. In this paper we provide a synthesis about the knowledge of diversity and altitudinal distribution of anurans that inhabit SPC mountains. We compiled a species list through different information sources (field data, biological collections and bibliography. Using this information we characterize altitudinal distribution range of each species and analyze associations between species richness and composition and altitude gradient. We recorded 24 amphibians species belonging to five families. These species are heterogeneously distributed over the altitude gradient of SPC. We detect a linear negative relationship between altitude and species richness and defined assemblages associated with different altitude sectors. The results obtained in the paper represent basic information that will be useful to evaluate anthropogenic impact on this particular and fragile mountain system.

THE SONG OF SONGS IN THE WORK OF LUIS DE LEON, SAN JUAN DE LA CRUZ Y JUAN GELMAN LANGUAGE, CHILDREN AND SPIRITUAL EXPERIENCE

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Geneviève Fabry

2015-04-01

Full Text Available This paper aims to study the intertextual traces dell Song of Songs in the work of Luis de León, San Juan de la Cruz and Juan Gelman from a particular point of view: the resonance in the vernacular of small biblical book as founder dimension of an experience spiritual, emotional and literary time. Choosing our corpus may surprise but, for one, would like to emphasize the importance of two pivotal moments in the reception of the Song: the Spanish Renaissance, whose approach to the Bible is enriched by new currents philological and exegetical of which Luis de León is a sublime representative; the late twentieth century in which an insistent intertextuality observed with sanjuanista work in one direction often foreign to Christian spirituality, as in the case of the Argentine Juan Gelman.

Isla de calor y ocupación espacial urbana en San Juan, Argentina: análisis evolutivo.
Island heat effect and spatial urban occupancy in San Juan, Argentina: evolution analysis
Ilha de calor e ocupação do espaço urbano em San Juán, Argentina: análise evolutiva

OpenAIRE

Mario Cúnsulo; Alejandra Kurbán; Alberto Papparelli

2011-01-01

Resumen:En este artículo se presentan resultados finales de un proyecto de investigación bianual (2009-2010), denominado Variación histórica y espacial de la isla de calor urbana en zona árida, financiado por la Universidad Nacional de San Juan, Argentina. Su objetivo principal es determinar la progresiva modificación de la isla de calor urbana en un periodo de quince años (1995-2010) y la correlación de esta con la ocupación del área urbana del Gran San Juan (GSJ), localizada en la diagonal ...

Mortality attributable to pandemic influenza A (H1N1) 2009 in San Luis Potosí, Mexico

Science.gov (United States)

Comas‐García, Andreu; García‐Sepúlveda, Christian A.; Méndez‐de Lira, José J.; Aranda‐Romo, Saray; Hernández‐Salinas, Alba E.; Noyola, Daniel E.

2010-01-01

Please cite this paper as: Comas‐García et al. (2011) Mortality attributable to pandemic influenza A (H1N1) 2009 in San Luis Potosí, Mexico. Influenza and Other Respiratory Viruses 5(2), 76–82. Background  Acute respiratory infections are a leading cause of morbidity and mortality worldwide. Starting in 2009, pandemic influenza A(H1N1) 2009 virus has become one of the leading respiratory pathogens worldwide. However, the overall impact of this virus as a cause of mortality has not been clearly defined. Objectives  To determine the impact of pandemic influenza A(H1N1) 2009 on mortality in a Mexican population. Methods  We assessed the impact of pandemic influenza virus on mortality during the first and second outbreaks in San Luis Potosí, Mexico, and compared it to mortality associated with seasonal influenza and respiratory syncytial virus (RSV) during the previous winter seasons. Results  We estimated that, on average, 8·1% of all deaths that occurred during the 2003–2009 seasons were attributable to influenza and RSV. During the first pandemic influenza A(H1N1) 2009 outbreak, there was an increase in mortality in persons 5–59 years of age, but not during the second outbreak (Fall of 2009). Overall, pandemic influenza A (H1N1) 2009 outbreaks had similar effects on mortality to those associated with seasonal influenza virus epidemics. Conclusions  The impact of influenza A(H1N1) 2009 virus on mortality during the first year of the pandemic was similar to that observed for seasonal influenza. The establishment of real‐time surveillance systems capable of integrating virological, morbidity, and mortality data may result in the timely identification of outbreaks so as to allow for the institution of appropriate control measures to reduce the impact of emerging pathogens on the population. PMID:21306570

Episodic Late Holocene dune movements on the sand-sheet area, Great Sand Dunes National Park and Preserve, San Luis Valley, Colorado, USA

Science.gov (United States)

Forman, S. L.; Spaeth, M.; Marín, L.; Pierson, J.; Gómez, J.; Bunch, F.; Valdez, A.

2006-07-01

The Great Sand Dunes National Park and Preserve (GSDNPP) in the San Luis Valley, Colorado, contains a variety of eolian landforms that reflect Holocene drought variability. The most spectacular is a dune mass banked against the Sangre de Cristo Mountains, which is fronted by an extensive sand sheet with stabilized parabolic dunes. Stratigraphic exposures of parabolic dunes and associated luminescence dating of quartz grains by single-aliquot regeneration (SAR) protocols indicate eolian deposition of unknown magnitude occurred ca. 1290-940, 715 ± 80, 320 ± 30, and 200-120 yr ago and in the 20th century. There are 11 drought intervals inferred from the tree-ring record in the past 1300 yr at GSDNPP potentially associated with dune movement, though only five eolian depositional events are currently recognized in the stratigraphic record. There is evidence for eolian transport associated with dune movement in the 13th century, which may coincide with the "Great Drought", a 26-yr-long dry interval identified in the tree ring record, and associated with migration of Anasazi people from the Four Corners areas to wetter areas in southern New Mexico. This nascent chronology indicates that the transport of eolian sand across San Luis Valley was episodic in the late Holocene with appreciable dune migration in the 8th, 10-13th, and 19th centuries, which ultimately nourished the dune mass against the Sangre de Cristo Mountains.

DIAGNOSIS OF TICS IN THE SMALLS OF THE CITY OF SAN LUIS POTOSÍ IN THE FOOD AND BEVERAGE SECTOR FOR THE DISSEMINATION OF ITS SERVICES

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Dubelza B. Oliva-Garza

2017-07-01

Full Text Available In recent years information and communication technologies are present in all sectors of our lives and the food and drink sector is no exception, so a diagnosis was made in this area in small and medium enterprises in the city of San Luis Potosí in the areas for the management and dissemination of their services, as they are currently at a disadvantage in front of large restaurant chains that have mobile applications, web pages and other applications. The research design applied is descriptive. Thirty-two MSMEs from the food and beverage sector in the city of San Luis Potosí were affiliated with the National Chamber of the restaurant and food industry (Canirac. The variables that were taken into consideration are: Use of computer equipment, ICT specialists, Internet access and use, Social Media, Electronic Commerce. The study found that most SMEs in the restaurant sector, use the social network Facebook as a means of disseminating services and promotions, However, they do not use all the potential that the social tool provides them, due to the lack of knowledge and lack of preparation to interact better with their customers and suppliers. In addition, most of the sample has the need to advertise through electronic means, through mobile phone applications.

La acción tutorial desde la perspectiva de los alumnos de la Universidad Autónoma de San Luis Potosí

OpenAIRE

Rubio, Perla Patricia; Martínez, José Francisco

2012-01-01

Este estudio constituye una propuesta de corte cualitativo para explorar los ejes de racionalidad con que los alumnos de la Universidad Autónoma de San Luis Potosí (UASLP) construyen sus concepciones y expectativas, y analizan las implicaciones de la acción tutorial que los programas de tutoría implementan en su institución. De los resultados generados se encontró que los alumnos conceptualizan la acción tutorial en cinco ámbitos de atención: a) académico profesional, b) escolar y de aprendiz...

Modelo sistémico de planeamiento estratégico con enfoque de sustainability Scorecard aplicado a la Universidad Nacional San Luis Gonzaga

OpenAIRE

Cáceres Huamán, Juan Félix; Cáceres Huamán, Juan Félix; Cáceres Huamán, Juan Félix

2011-01-01

En el presente trabajo de investigación, se expone la concepción sistémica del planeamiento estratégico, como metodología y herramienta de gestión empresarial, a fin que la Universidad Nacional "San Luis Gonzaga", logre una gestión estratégica, académica y administrativa, eficiente, eficaz y de calidad, para alcanzar un desarrollo y crecimiento sostenible. También se plantea la estrategia del balance de sostenibilidad (Sustainability Scorecard "SSC"), que postula la integración de lo econ...

Estructura y composición de la vegetación del bosque de niebla de Copalillos, San Luis Potosí, México

OpenAIRE

Fortanelli-Martínez, Javier; García-Pérez, José; Castillo-Lara, Pedro

2014-01-01

Se presenta la lista florística y se describe la estructura de un bosque de niebla en Copalillos, San Luis Potosí, el cual, hasta hace muy poco tiempo estuvo ausente en la cartografía de vegetación existente. Se registraron 199 especies, correspondientes a 165 géneros y 91 familias botánicas. La estructura vertical mostró tres estratos arbóreos, uno arbustivo y otro herbáceo. Las especies dominantes en el arbóreo superior fueron Liquidambar styraciflua, Quercus germana y Q. pinnativenulosa. E...

Entre la escasez y la inundación. Manejo del agua en la ciudad de San Luis Potosí, 1776-1888.

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Yuritzi Hernández Fuentes

2014-06-01

Full Text Available This paper studies the historic connection between the hydric resources of the city of San Luis Potosí and their population during the XIX century, in special the management residual water and pluvial, and describing the demand for agricultural use, sanitation conflicts, systems of canalization failed to serve to water needs and also the population vulnerability to the floods. All this was result of the transformation of the system hydric of the catchment area and society actions to water use and this originated problems with water scarcity and floods that existed years before.

Isla de calor y ocupación espacial urbana en San Juan, Argentina: análisis evolutivo

OpenAIRE

Papparelli, Alberto; Kurbán, Alejandra; Cúnsulo, Mario

2013-01-01

En este articulo se presentan resultados finales de un proyecto de investigacion bianual (2009-2010), denominado Variación histórica y espacial de la isla de calor urbana en zona árida, financiado por la Universidad Nacional de San Juan, Argentina. Su objetivo principal es determinar la progresiva modificacion de la isla de calor urbana en un periodo de quince anos (1995-2010) y la correlacion de esta con la ocupacion del area urbana del Gran San Juan (GSJ), localizada en la diagonal arida de...

Digital Journalism and Public Mass Media: The Bad News

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Sergio Ricardo Quiroga

2016-07-01

Full Text Available In this paper we intend to study how police and security information is presented by the News Agency, San Luis. We examined the production of police and security information produced in 2013 by the San Luis News Agency (ANSI, a state news platform created to transmit government information in the province of San Luis, Argentina in 2012. The initiatives and progress for the people in police and security matters in the mass media, has a material-functional dimension, referring exclusively to improving the detachments, the delivery of police vehicles, and operational controls. That vision is diffused by the state agency for information and does not contribute to the promotion of ideas and discussions on citizen participation in security policies and the development of democracy.

CALIDAD DEL AGUA DE LAS QUEBRADAS LA CRISTALINA Y LA RISARALDA, SAN LUIS, ANTIOQUIA

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María Cecilia Arango

2008-07-01

Full Text Available Las quebradas La Cristalina y La Risaralda son las fuentes que abastecen el acueducto del área urbana del municipio de San Luis, Antioquia. El propósito de este estudio fue elaborar un mapa de calidad de agua que sirva como base de comparación de la evolución de las quebradas y justifique la inversión de los recursos del Municipio en el mejoramiento prioritario de los tramos más críticos. Para establecer la calidad del agua se determinaron indicadores físicos, químicos y biológicos, entre ellos algunas características físicas de las quebradas como tipo de sustrato, cobertura de riberas y hábitats acuáticos, temperatura, conductividad, oxígeno, pH, coliformes y macroinvertebrados acuáticos. A partir de los datos colectados se calcularon los índices BMWP/Col1, ASPT, ETP, índice de dípteros y de equidad. Con los resultados obtenidos del ASPT se construyó el mapa de calidad de agua para ambas quebradas. Las quebradas están bien oxigenadas debido a la turbulencia provocada por la conformación rocosa de su lecho, que a su vez permite la diversidad de macroinvertebrados acuáticos. Sin embargo, algunos tramos de estas corrientes están sometidos a contaminación de origen doméstico y agropecuario, lo cual limita sus condiciones de uso.The streams La Cristalina and La Risaralda are the water sources for the urban area of the Municipality of San Luis, Antioquia. The intention of this study was to develop a map of water quality that serves as base as comparison of the evolution of the streams and allows the high-priority destination of the resources of the Municipality in the improvement of those more critical sections. In order to determine the quality of the water, parameters and some characteristics of the stream that can alter the quality of the water were measured, like substrate of the bed, cover of banks, aquatic habitats, temperature, conductivity, oxygen, pH, coliforms, and aquatic macroinvertebrates. The indices calculated

El dispositivo de concursos para cargos directivos en San Luis como facilitador u obstaculizador para la instalación de nuevos formatos escolares.

OpenAIRE

Fratín de Samper, Alicia Celia; Chavero, Gustavo Federico; Celi Quiroga, José Carmelo

2015-01-01

El trabajo tiene por objetivo general analizar si el dispositivo de concursos para cargos directivos en escuelas de la provincia de San Luis se constituye en facilitador u obstaculizador para la instalación de nuevos formatos escolares. El análisis se presenta desde dos ópticas. Por un lado, desde un estudio comparativo entre las normativas ministeriales que enmarcaron los Concursos Jerárquicos 2012 (Decreto N° 3895-ME-2012 y la Resolución 211 ME-2012 en lo que refiere a la guía pa...

Urban ecology of Triatoma infestans in San Juan, Argentina.

Science.gov (United States)

Vallvé, S L; Rojo, H; Wisnivesky-Colli, C

1996-01-01

This study was performed in an urban neighborhood of the capital city of the province of San Juan, Argentina. Erected as a housing complex, the place consists of 768 flats distributed in buildings of three and seven floors each. A survey was carried out in 33% of the dwellings, enquiring about the number of Triatoma infestans found indoors, stage of the bug development-nymph or adult- and how these insects had entered their homes. Adult T.infestans were found on all floors; 163 people (64%) had found them at least once, and 130 (51%) several times. Dispersal flight seems to have been the main mechanism of infestation by adult bugs in this area, and a total of 51% of the surveyed inhabitants reported that the insects had flown into their flats.

Urban ecology of Triatoma infestans in San Juan, Argentina

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Silvana L Vallvé

1996-08-01

Full Text Available This study was performed in an urban neighborhood of the capital city of the province of San Juan, Argentina. Erected as a housing complex, the place consists of 768 flats distributed in buildings of three and seven floors each. A survey was carried out in 33% of the dwellings, enquiring about the number of Triatoma infestans found indoors, stage of the bug development - nymph or adult - and how these insects had entered their homes. Adult T.infestans were found on all floors; 163 people (64% had found them at least once, and 130 (51% several times. Dispersal flight seems to have been the main mechanism of infestation by adult bugs in this area, and a total of 51% of the surveyed inhabitants reported that the insects had flown into their flats.

El Morro caldera (33° 10‧ S, 66° 24‧ W), San Luis, Argentina: An exceptional case of fossil pre-collapse updoming

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Sruoga, P.; Ibañes, O. D.; Japas, M. S.; Urbina, N. E.

2017-05-01

Volcanism at Sierra del Morro represents the final stages of the flat-slab related magmatism in the easternmost San Luis Neogene Volcanic Belt. This 80 km-long NW-WNW-trending belt tracks the episodic inland migration of both magmatism and tectonic deformation since 18 Ma. The Sierra del Morro stands out in the Eastern Sierras Pampeanas as a metamorphic block uplifted during the Late Miocene-Pleistocene by a combination of magma injection and tectonic deformation. Although sequences that preserve stages of basement updoming are not often preserved, exposures in Sierra del Morro are exception in providing key evidence and insight into the involved processes. Based on the comprehensive study of volcanic stratigraphy and structures, the reconstruction of the volcanic architecture has been carried out. We infer a three stage evolution of the El Morro caldera as follows: 1) pre-collapse updoming and volcanism, 2) collapse caldera formation and 3) post-caldera volcanism. The ascent of magma is recorded in small tumescence sites, strongly controlled by oblique transtensional WNW-NW and ENE-striking brittle-ductile megashear zones. Even though the area affected by tumescence was large, magma injection progressed only locally. At Cerros Guanaco and Pampa, metamorphic rocks were updomed and strongly brecciated, whereas at Sierra del Morro magma was emplaced as pre-collapse domes with associated block-and-ash flows, ignimbrite caldera-forming eruptions and post-caldera lava domes and dykes. The caldera is located in the intersection of two major oblique transtensional WNW-NW and ENE-trending brittle-ductile megashear zones, where the highest positive dilatation occurred.

Arsenic contamination of natural waters in San Juan and La Pampa, Argentina.

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O'Reilly, J; Watts, M J; Shaw, R A; Marcilla, A L; Ward, N I

2010-12-01

Arsenic (As) speciation in surface and groundwater from two provinces in Argentina (San Juan and La Pampa) was investigated using solid phase extraction (SPE) cartridge methodology with comparison to total arsenic concentrations. A third province, Río Negro, was used as a control to the study. Strong cation exchange (SCX) and strong anion exchange (SAX) cartridges were utilised in series for the separation and preservation of arsenite (As(III)), arsenate (As(V)), monomethylarsonic acid (MA(V)) and dimethylarsinic acid (DMA(V)). Samples were collected from a range of water outlets (rivers/streams, wells, untreated domestic taps, well water treatment works) to assess the relationship between total arsenic and arsenic species, water type and water parameters (pH, conductivity and total dissolved solids, TDS). Analysis of the waters for arsenic (total and species) was performed by inductively coupled plasma mass spectrometry (ICP-MS) in collision cell mode. Total arsenic concentrations in the surface and groundwater from Encon and the San José de Jáchal region of San Juan (north-west Argentina within the Cuyo region) ranged from 9 to 357 μg l(-1) As. Groundwater from Eduardo Castex (EC) and Ingeniero Luiggi (LU) in La Pampa (central Argentina within the Chaco-Pampean Plain) ranged from 3 to 1326 μg l(-1) As. The pH range for the provinces of San Juan (7.2-9.7) and La Pampa (7.0-9.9) are in agreement with other published literature. The highest total arsenic concentrations were found in La Pampa well waters (both rural farms and pre-treated urban sources), particularly where there was high pH (typically > 8.2), conductivity (>2,600 μS cm(-1)) and TDS (>1,400 mg l(-1)). Reverse osmosis (RO) treatment of well waters in La Pampa for domestic drinking water in EC and LU significantly reduced total arsenic concentrations from a range of 216-224 μg l(-1) As to 0.3-0.8 μg l(-1) As. Arsenic species for both provinces were predominantly As(III) and As(V). As

Abasto futuro de agua potable, análisis espacial y vulnerabilidad de la ciudad de San Luis Potosí, México

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Contreras Servín Carlos; Galindo Mendoza María Guadalupe

2008-01-01

En el presente artículo se analizan y se presentan las circunstancias físicas, sociales y económicas que en conjunto afectan al panorama y a la problemática actual del abastecimiento de agua potable de la zona metropolitana de la ciudad de San Luis Potosí. Entre los temas que se abordan se encuentra la relación entre la disponibilidad del agua y el incremento de la población, así como la evolución de la extracción de aguas subterráneas. Por otra parte, la investigación muestra un diagnóstico ...

[Violence against women in transnational communities in San Luis Potosí, Mexico: a public health problem].

Science.gov (United States)

Flores, Yesica Yolanda Rangel

2016-08-01

Violence against women is a worldwide problem due to its impact on quality of life for those living under the complicity of a patriarchal culture and a state that makes such violence invisible. This article aims to give visibility to the contexts of violence affecting female "partners of migrants" in their places of origin, problematizing how such violence assaults their physical and mental health. This was a qualitative study with an interpretative anthropological focus, drawing on a sample of 21 women from rural and urban areas in San Luis Potosí, Mexico. Interviews were based on daily life history and discourse analysis. According to the results, women experience more violence when their spouses migrate, new forms of violence are committed against them, and the violence occurs in both the household and the community. Violence against women is a public health problem that should be treated through a framework that is sensitive to the social and cultural dynamics characterizing the contexts in which health programs are implemented.

Evolución metamórfica de los gabros coroníticos de El Arenal, faja máfica-ultramáfica El Destino-Las Águilas, sierra de San Luis Metamorphic evolution of the coronitic gabbrons of the El Arenal, El Destino-Las Aguilas, mafic-ultramafic belt, Sierra de San Luis

OpenAIRE

N. Brogioni; G. Cruciani; M. Franceschelli; O. Vaselli

2007-01-01

Las meta-melagabronoritas coroníticas se localizan en uno de los cuerpos de El Arenal, pertenecientes a la faja máfica-ultramáfica El Destino-Las Aguilas del flanco oriental de la sierra de San Luis. Son rocas de grano fino y representan fraccionados poco evolucionados, con alto contenido de Cr-Ni y [Mg/Mg+FeT++] comprendidas entre 0,72 y 0,75, derivados de un magma toleítico olivínico de bajo Ti, cuyo emplazamiento precedió a la deformación penetrativa y metamorfismo famatinianos. Las microe...

Structure and distribution of Hydrachnidia (Parasitengona-Acari in the sub-basin of the Grande River (Superior Basin of Quinto River. San Luis-Argentina Estrutura e distribuição dos Hidracáridos (Parasitengona-Acari na Subcuenca do Rio Grande (Conta Superior do Rio Quinto. San Luis-Argentina

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Carlos Raul Quiroga

2010-09-01

Full Text Available AIM: The purpose of this work was to determine genera diversity, structural attributes and distribution of the Hydrachnidia assemblages and their possible influences with certain abiotic parameters along the sub-basin of the Grande River, a 6th order stream in the province of San Luis; METHODS: four sampling sites (C1, E1, E2 and E3 were established in two different hydrological periods: high waters (HW and low waters (LW. Twenty-four samples were obtained using Surber sampler, and the hydraulic, physical and chemical characterization of the sampling sites was carried out. Density (ind.m-2, genus richness, Shannon-Wiener diversity index and Kownacki's dominance index were calculated; RESULTS: sixteen Hydrachnidia genera were observed. No significant differences were found between the abiotic parameters of each site. A positive correlation of Sperchon, Torrentícola and Neoatractides was observed in relation to flow and current velocity whereas Hygrobates showed a negative correlation. No significant differences were observed in Hydrachnidia abundances among the sites in HW and LW and between the pairs of each site in HW and LW. The genera with the highest densities were Hygrobates, Limnesia and Atractides, of which the first two were widely distributed. The rest only appeared sporadically. According to Kownacki's index Hygrobates and Limnesia were "dominant", Atractides were "subdominant" and the rest were "non dominant"; CONCLUSIONS: The found genera were distanced systematically and philogenetically. However, the specimens belonging to these genera exhibited very similar morphological characteristics, which were adaptations to rheophilous habitats. The representativity of Hygrobates and Limnesia might be due to the great abundance of their hosts and preys in the sub-basin. The decrease in the densities and the changes in the Hydrachnidia composition in E3 (post-dam site might be explained by the biotic interactions previously mentioned

Contribución al conocimiento de los reservorios del Trypanosoma cruzi (Chagas,1909 en la Provincia de Corrientes, Argentina Contribution to knowledge of reservoirs of Trypanosoma cruzi (Chagas, 1909 in Corrientes Province, Argentina

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María Esther Bar

1999-06-01

Full Text Available Con el propósito de identificar a reservorios del Trypanosoma cruzi se investigaron 60 mamíferos en los Departamentos Capital y San Luis del Palmar. Se examinaron: primates, roedores, marsupiales, carnívoros y edentados; 40 vivían en cautiverio y 20 fueron capturados mediante trampas en una comunidad rural forestal. Los mamíferos fueron analizados por xenodiagnóstico, empleándose ninfas de 3o o 4o estadío de Triatoma infestans ayunadas durante 2 semanas. Las heces de los triatominos fueron observadas al microscopio (400x a los 30, 60 y 90 días post-alimentación. En 2 Saimiri sciureus y en 1 Cebus apella se constató infección por tripanosomas cruziformes. Se concluye que la parasitemia detectada fue baja. La presencia de Didelphis albiventris, reservorio potencial del Trypanosoma cruzi , en una zona de transmisión activa del parásito representa un factor de riesgo, por lo que son necesarias futuras investigaciones epidemiológicas para determinar la real diagnosis de esta parasitosis en la provincia de Corrientes, Argentina.In order to identify Trypanosoma cruzi reservoirs in transmission areas, 60 mammals in Capital and San Luis del Palmar Departments, Corrientes, Argentina were studied. Primates, rodents, carnivores, marsupials and edentates were investigated, 40 of them living in captivity and 20 caught with traps in a rural area. The mammals were examined by xenodiagnosis and third or fourth instars nymphs of Triatoma infestans starved for 2 weeks were used. The feces were microscopically observed (400x for Trypanosoma cruzi infection at 30, 60 and 90 days after feeding. Trypanosoma cruzi-like parasites were identified in 2 Saimiri sciureus and 1 Cebus apella analyzed by xenodiagnosis. It was concluded that parasitemia was low. Howewer, the presence in a forest area of Didelphis albiventris, potential reservoir of the parasite, indicates a risk factor and deserves further epidemiological study for a true diagnosis of this

Una fosa común en el interior de Argentina: el Cementerio de San Vicente

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Darío Olmo

2009-04-01

Full Text Available ResumenLa Antropología Forense ha tenido un papel fundamental en las investigaciones sobre el terrorismode estado en Argentina durante el último siglo, y todavía lo tiene: La exhumación de los cadáveres noidentificados enterrados en fosas comunes y tumbas individuales y el análisis de los restos recuperadospara su identificación y determinación de la causa de muerte. En el caso aquí descrito, las técnicasforenses y arqueológicas son esenciales para la localización de las fosas comunes en San Vicente,Córdoba, distinguiendo entre los desaparecidos y otros muertos allí enterrados, la determinación de laidentidad y la reconstrucción de la forma en que fueron asesinados.AbstractForensic anthropology had a fundamental role to play in the process of investigations about StateTerrorism in Argentina during the last century, and still does: that of exhuming the unidentified bodiesstill buried in common and individual graves and of analyzing the recovered remains towards theiridentification and determination of the cause of death. In the case described here, forensicanthropological and archaeological skills were essential in locating the mass graves at San Vicente,Córdoba, distinguishing among disappeared and non-disappeared dead, determining identity, andreconstructing the manner in which the disappeared were killed.

Identidad y embarazo adolescente

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Herrera, Raquel; Charras, Juanita Amaya; Blanda, Elizabeth

2009-01-01

 En función del Proyecto de Investigación “Significaciones inconscientes del embarazo en adolescentes en estado de gravidez”, de la Facultad de Ciencias Humanas de la Universidad Nacional de San Luis, Argentina, se realiza el presente trabajo. Dicho Proyecto de Investigación se está llevando a cabo en la ciudad de San Luis, con una muestra no probabilística accidental que incluye adolescentes embarazadas que vayan a dar a luz antes de cumplir los 20 años. El objetivo del siguiente trabajo es ...

EVALUATING A MANAGEMENT SYSTEM OF ELECTRONIC COURT FILES ACCORDING TO ARGENTINE MODERNIZATION PLAN

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Rescaldani Lucrecia

2017-06-01

Full Text Available The Modernization Plan decree was promulgated in early 2016 in order to renew electronic government efforts in Argentina. Some of its objectives include to transparent the management of government processes, to establish a digital schedule and to promote state efficiency. San Luis is among the pioneering provinces leading e-government in Argentina since its implementation as part of its agenda at the beginning of the 21st century. In fact, the province enabled one of the first management system of electronic court files in the country. This paper describes e-government in San Luis and focuses on the judicial electronic management system under the light of the Modernization Plan decree. This study uncovers improvement opportunities and it suggests a series of actions to be carried out.

Comunidades de roedores nocturnos en un ecotono de matorrales micrófilos y zacatal gipsófilo en San Luis Potosí, México Nocturnal rodents at the edge of a microphyllous shrubland and gypsophilous grassland in San Luis Potosi, Mexico

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Jaime Luévano

2008-06-01

Full Text Available En el presente estudio se compara la abundancia y riqueza entre los roedores nocturnos de un zacatal gipsófilo y los de 3 matorrales micrófilos, en el norte de San Luis Potosí. Los muestreos se llevaron a cabo en sitios con distintas características edáficas y de estructura de la vegetación, en la estación lluviosa y en la seca de los años 2003 y 2004. Como estimador del tamaño poblacional se utilizó el número de individuos capturados en cada periodo. Se capturaron 414 individuos de 12 especies de las familias Heteromyidae y Muridae. Se concluye que: 1 las comunidades de roedores en cada sitio fueron diferentes en función de la estructura vegetal y cambiaron de manera notable entre el zacatal y los 3 sitios de matorral adyacentes; 2 dichas comunidades reflejaron el mosaico de la vegetación más que la época del año; 3 los tres tipos de matorral mantuvieron su identidad individual a lo largo del año, y 4 la baja precipitación y/o el pastoreo, a través de la reducción de la cobertura vegetal sobre suelos gipsófilos afectó a los roedores.In this study we compared abundance and species richness of nocturnal rodents at the edge of gypsophilous grassland on an exposed gypsum substrate and 3 sites of microphilous shrubland, in northern San Luis Potosí, Mexico. We sampled at sites that differed in edaphic characteristics and vegetation structure, in the wet and dry seasons of 2003 and 2004. As a population estimator we used the number of individuals captured in each sampling period. We captured 414 individuals of 12 species of Heteromyidae and Muridae. We concluded that 1 rodent communities were different among sites as a function of vegetation structure, and varied notably between grassland and adjacent shrublands: 2 such communities reflected the vegetation mosaic more than season of the year: 3 the three shrubland types maintained their identity throughout the year; y 4 low precipitation and/or grazing, through the reduction of

Perception of the general population in Ciudad Valles, San Luis Potosi regarding waste production in hairdressing salons

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Juan José Maldonado-Miranda

2016-02-01

Full Text Available Hairdressing salons offer a wide range of services including treatments for hair and skin. However, these activities result in the production of residues that are improperly discharged into drainage, generating a negative impact on the environment. This study provides results of a first stage in a project regarding the analysis of waste disposal in hairdressing salons in the municipality of Ciudad Valles, San Luis Potosi, Mexico. Information gathering was conducted through a field work study by surveys given to workers in hairdressing salons in Ciudad Valles. The information presented in this study indicates that in hairdressing salons in Ciudad Valles there is no management plan for the management of waste that could be severely impacting the environment. The information presented here will be the basis for identifying priority areas for intervention, developing new research projects and setting new environmental policies. In addition, the results presented here can be extrapolated to many rural and urban areas all over Mexico.

Dual electricity generation biogas-diesel in the community of Maguey, municipality of San Luis. Santiago de Cuba

International Nuclear Information System (INIS)

Recio Recio, Angel Amado; Palacios Barrera, Antonio; Salas Diaz, Alberto; Bertot, Romulo; Garcia Faure, Luis

2009-01-01

The work was developed in the rural community Magueyal, Popular Council Chamarreta of the Municipality San Luis, Santiago de Cuba province, consisting of 198 inhabitants, distributed in 75 of these 64 homes have electricity, also has a primary school and a medical clinic family. Its main activity is livestock to be located in a place where the topography is very steep, leading to not develop infrastructure networks. The electricity was supplied by diesel engine MWM-DITER, Type: D 327-2 and the supply of electricity was only 4 hours a day; it was decided to take him to eight hours using biogas, thus saving fuel. For this purposes and with funding from an international project proceeded to construction of two biogas digesters 83.04 m3 and 91.26 m3 of total volume, respectively, with which the generator feeds two reducing diesel consumption by 75% and increasing the hours of supply electricity for 4-8 hours. (author)

Solution to the colloidal silica problem in the San Luis Potosi power plant; Solucion del problema de silice coloidal en la central termoelectrica San Luis Potosi

Energy Technology Data Exchange (ETDEWEB)

Lopez Rubalcava, Humberto [Comision Federal de Electricidad (CFE), Mexico, D. F. (Mexico); Mercado, Sergio [Instituto de Investigaciones Electricas, Cuernavaca (Mexico); Guerra, Protasio [Comision Federal de Electricidad (CFE), Mexico, D. F. (Mexico)

1988-12-31

In June 1986 the Comision Federal de Electricidad (CFE) made tests to raise the load of the first normalized unit of 350 MW of the San Luis Potosi Power Plant; although the new system for colloidal silica removal had not yet been installed, consisting of a hollow fibers ultra-filtration system with a capacity of 110 m{sup 3}, that for the first time would be applied in a Mexican power plant. It was decided to install this system due to the fact that the well water supplying this power plant comes from a geothermal reservoir, with water at 38 degrees Celsius and a silica content of 15 to 250 parts per billion (ppb) of colloidal silica, which makes it necessary to eliminate it in order to enable the boiler operation at its design conditions (175 bars (2573 psig) and 540 degrees Celsius). Although a demineralizing plant existed for the boiler feed water make up, the ion exchange resins were not able to retain the colloidal silica. Also, the First Unit operation was held at 25% of its rated capacity; in trying to raise the output to 50%, the silica concentration in the boiler water went over the allowed limits, resulting in a concentration of 1,500 ppb in the boiler water and 28 ppb in the steam. One the ultra-filtration plant was installed, the power plant operated at full rated capacity with silica concentrations in the steam lower than the permitted concentration, i.e. 10 ppb . By the end of 1987 the Second Unit of 350 MW was put into operation with the ultra-filtration system in operation, reaching full load without any problem. Once confirmed the efficiency of the ultra-filtration for the colloidal silica removal, CFE will apply this system in other power plants of the country having the same problem. [Espanol] En junio de 1986, la Comision Federal de Electricidad (CFE) efectuo pruebas de elevacion de carga en la primera unidad normalizada de 350 MW de la central termoelectrica San Luis Potosi; sin embargo, aun no se terminaba de instalar el nuevo sistema para la

MORTALIDAD EMBRIONARIA EN CUATRO NIDOS DE TORTUGA CARDÓN Dermochelys coriacea EN PLAYA SAN LUIS, SECTOR LOS CHIVOS, CUMANÁ, ESTADO I SUCRE EMBRYONIC MORTALITY IN FOUR NEST OF LEATHERBACK TURTLE Dermochelys coriacea IN SAN LUIS BEACH, SECTOR LOS CHIVOS, CUMANÁ, SUCRE STATE

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Francisco Velásquez

2018-04-01

Full Text Available We analyzed the reproductive characteristics of four nets of leatherback turtles ( Dermochelys coriacea which spawned in San Luis beach, sector Los Chivos, Cumaná, Sucre State. The turtles deposited a total of 312 eggs ( =78 per nest, of which 102 eggs showed no apparent development ( = 25.50, 13 were dead embryos ( = 3.25 and 155 were coral type eggs (without fecundation ( = 38.75. Among the dead embryos (13, 84.62% had reached the late embryonic state (EETT and the rest the medium state (EEM. The average hatching success was 65.94%, with a minimum value in a turtle that laid 77 eggs (46.75 % and the maximum (91.17 % in another who laid 72 eggs. There was a high correlation between the number of eggs without apparent development (HSDA and corals, with a highly significant relationship (r = 0.97 between weight and curved carapace length in embryos.

Rb/Sr and U/Pb isotopic ages in basement rocks of Mina Gonzalito and Arroyo Salado, Atlantic North-Patagonian Massif, Rio Negro, Argentina

International Nuclear Information System (INIS)

Varela, Ricardo; Sato, Ana M.; Cingolani, Carlos A.; Basei, Miguel A.S.; Siga, Oswaldo; Sato, Kei

1998-01-01

Isotopic ages from metamorphic and plutonic rocks of the Atlantic area of North Patagonian basement indicate that the main crustal tectonic events occurred during the late Proterozoic to early Paleozoic times. Rb/Sr and U/Pb data in the 550-470 Ma interval suggest an old tecto-thermal activity during the upper Brazilian Cycle (Rio Doce Orogeny). At regional scale, the comparable Neo proterozoic basement of Ventania and sedimentary for eland cover of Tandilia continues to the Northeast, in the Dom Feliciano Belt. A possible correlation of the North Patagonian basement with igneous-metamorphic relics of Central Argentina (Pampean Ranges of San Luis-Cordoba and at La Pampa province) is also indicated. (author)

Consideraciones geológico-paleontológicas del hallazgo de un vertebrado en dedimentos del jurásico tardío en una localidad en el norte del estado de San Luis Potosí, México

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Flores Castillo, Cesio Menahén

2012-01-01

En el presente trabajo se realiza una investigación de carácter sedimentológico- paleontológico en rocas sedimentarias calcáreo-arenosas de la Formación La Caja (Jurásico Tardío), que contienen los restos de un vertebrado fosilizado, localizado en el cañón denominado San Nicolás, perteneciente a la localidad de Las Lajas, Municipio de Charcas, San Luis Potosí. Los estudios realizados para su identificación manifiestan que se trata de un organismo marino. En el presente trabajo...

Brote de encefalitis de San Luis en el Área Metropolitana Buenos Aires

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Alfredo Seijo

2011-06-01

Full Text Available Se describen los hallazgos epidemiológicos y clínicos de 13 enfermos con diagnóstico de infección por virus de la encefalitis de San Luis, con transmisión entre enero y marzo de 2010, en el Area Metropolitana Buenos Aires (AMBA. Los 13 enfermos, promedio de edad 38 años, tuvieron un comienzo agudo caracterizado por hipertermia y cefalea. Entre los días dos y diez de iniciados los síntomas, 7/13 enfermos tuvieron signos y síntomas de compromiso neurológico caracterizado por meningitis sin signos encefálicos en 1/7. En 6/7 los hallazgos más frecuentes fueron: rigidez de nuca, desorientación temporoespacial, fotofobia, confusión y alteración del lenguaje. Dos resonancias magnéticas y un electroencefalograma presentaron signos de afectación de lóbulos temporales. El líquido cefalorraquídeo se caracterizó por pleocitosis con predominio de células mononucleadas, glucorraquia normal y discreto aumento de proteínas. No hubo casos fatales. En 6/13 pacientes la sospecha clínica inicial fue dengue. Por la agrupación espacial y temporal de los casos puede considerarse un brote epidémico, el primero conocido en el AMBA, ya que no se había notificado previamente la circulación epidémica del virus.

El uso del lenguaje estadístico R: herramientas para su uso en docencia e investigación

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Cid, Fabricio Damian

2017-01-01

El uso del lenguaje estadístico R: Herramientas para su uso en docencia e investigación. Articulo publicado en la sección "TICs y Docencia" de la Revista Actualidad Analítica" Fil: Cid, Fabricio Damian. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina

Antimicrobial and antioxidant activities of Gentianella multicaulis collected on the Andean Slopes of San Juan Province, Argentina.

Science.gov (United States)

Lima, Beatriz; Sánchez, Marianela; Luna, Lorena; Agüero, María B; Zacchino, Susana; Filippa, Eva; Palermo, Jorge A; Tapia, Alejandro; Feresin, Gabriela E

2012-01-01

The infusion of the aerial parts of Gentianella multicaulis (Gillies ex Griseb.) Fabris (Gentianaceae), locally known as 'nencia', is used in San Juan Province, Argentina, as stomachic and as a bitter tonic against digestive and liver problems. The bioassay-guided isolation of G. multicaulis extracts and structural elucidation of the main compounds responsible for the antifungal and free radical scavenging activities were performed. The extracts had strong free radical scavenging effects in the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay (45-93% at 10 microg/mL) and ferric-reducing antioxidant power (FRAP) assay at 200 microg/mL. Demethylbellidifolin (4) had high antioxidant activity in the DPPH and FRAP assay. The dermatophytes Microsporum gypseum, Trichophyton mentagrophytes, and T. rubrum were moderately inhibited by the different extracts (MIC values of 125-250 microg/mL). Demethylbellidifolin (4), bellidifolin (5), and isobellidifolin (6) showed an antifungal effect (MIC values of 50 microg/mL), while swerchirin (3) was less active with a MIC value of 100 microg/mL. In addition, oleanolic acid (1) and ursolic acid (2) were also isolated. These findings demonstrate that Gentianella multicaulis collected in the mountains of the Province of San Juan, Argentina, is an important source of compounds with antifungal and antioxidant activities.

Primer registro de artropodofauna cadavérica en sustratos humanos y animales en San Juan, Argentina

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Fernando H. ABALLAY

2008-01-01

Full Text Available En el presente trabajo se estudiaron los artrópodos carroñeros que acudieron a cadáveres de vertebrados al aire libre en la provincia de San Juan, Argentina. El objetivo fue inventariar la composición específica de la artropodofauna cadavérica, asociada a diferentes sustratos de vertebrados en descomposición. Se colectaron muestras de artrópodos sobre restos animales y humanos en condiciones de campo y sobre cadáveres de cerdos domésticos colocados al aire libre bajo condiciones controladas. Se registraron, por primera vez para la provincia de San Juan, 40 especies de artropodofauna tanatológica incluidas en cuatro órdenes y 15 familias. Se incorpora, como primera cita para la fauna forense argentina, un necrófago: Megelenophorus americanus Lacordaire (Coleoptera: Tenebrionidae, y tres necrófilas: Polybia ruficeps Schrottky (Hymenoptera: Vespidae, Pheidole bergi Mayr (Hymenoptera, Formicidae, Myrmicinae y Ectatomma brunneum Smith (Hymenoptera, Formicidae, Ponerinae. Se citan 18 especies necrófagas, 18 necrófilas, una omnívora y seis oportunistas sobre siete diferentes sustratos cadavéricos de vertebrados. Se brindan nuevos registros de distribución de 18 especies de insectos. Se confirma la estacionalidad invernal de Callíphora vicina Robineau-Desvoidy (Diptera: Calliphoridae.

Geología y aspectos geográficos de la isla de san andrés, colombia

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Vargas Cuervo, German

2012-01-01

La Isla de San Andrés ha sido definida geológicamente por varios autores en dos unidades calcáreas de características bien marcadas: Una unidad de calizas heterogéneas,denominada como Formación San Andrés de edad Mioceno y una unidad de calizas coralinas de edad Pleistoceno, conocida como Formación San Luis. La primera unidad aflora en la parte central de la isla y representa la zona de colinas suaves con alturas máximas de 87 m.s.n.m y la Formación San Luis constituye la región plana a suave...

Despedida al maestro Arturo Andrés Roig (1922 – 2012

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Enrique Dussel

2015-07-01

Full Text Available En ocasión del fallecimiento de Arturo Andrés Roig (Doctor Honoris Causa por las Universidades Nacional de Río Cuarto, Argentina; Nacional de San Luis, Argentina; Autónoma de Managua, Nicaragua. Profesor Honorario en las Universidades Nacional del Comahue -Argentina-, y Andina Simón Bolívar -Ecuador- queremos sumarnos a la larga serie de homenajes que ha recibido. Para ello, reproducimos aquí tres memoriales dedicados al maestro por filósofos americanos.

Potencialidades y desafíos del Turismo y ecoturismo en el estado de San Luis Potosí, México: retos y expectativas para alcanzar el desarrollo regional

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José Guadalupe Rivera González

2012-04-01

Full Text Available The objective of the work is analyze the presence of diverse actors and components in the state of San Luis Potosí, Mexico that can harness and that simultaneously also that can be seen like obstacles so that the tourism and ecoturismo manage to become activities that promote the economic well-being and the development of each one of the regions of the State. The investigation is sustained in work of field, interviews with municipal civil employees related to the tourism, regional delegates of the secretary of tourism in the regions Media, Altiplano and Huasteca of the serve with lenders.

HPV genotype distribution and anomalous association of HPV33 to cervical neoplastic lesions in San Luis Potosí, Mexico.

Science.gov (United States)

DelaRosa-Martínez, Raúl; Sánchez-Garza, Mireya; López-Revilla, Rubén

2016-01-01

The association of human papillomavirus (HPV) types to neoplastic lesions increase as a function of their oncogenicity and the duration of the infection since lesion severity progresses from low-grade to high-grade and cancer. In an outbreak, the prevalence of the HPV type involved would increase and the proportion of the associated low-grade lesions would predominate over severe lesions. In this study, the prevalence of HPV types and their association to neoplastic lesions was determined in women subjected to colposcopy in San Luis Potosí, Mexico. DNA from high-risk (HR) and low-risk (LR) HPV types was identified by E6 nested multiplex PCR in cervical scrapes from 700 women with normal cytology, atypical squamous cells of undetermined significance (ASCUS), low-grade squamous intraepithelial lesions (LSIL), high-grade squamous intraepithelial lesions (HSIL) or invasive cervical cancer (CC). Overall HPV-DNA prevalence was 67.7 %, that of HR-HPV was 63.1 %, and that of LR-HPV was 21.3 %. The highest prevalence (78.2 %) occurred in the 15-24 year group, whereas that of single infections was 52 % and that of multiple infections (i.e., by 2-6 HPV types) was 48 %. The most prevalent HR types were HPV33 (33.1 %), HPV16 (16.6 %), HPV18 and HPV51 (6.7 % each). HR-HPV prevalence was 29.6 % in normal cytology, 26.7 % in ASCUS, 63.3 % in LSIL, 68.2 % in HSIL, and 90.5 % in CC. Three prevalence trends for HR-HPV types were found in neoplastic lesions of increasing severity: increasing (LSIL  CC) for HPV33. Two-thirds of the women subjected to colposcopy from 2007 to 2010 in San Luis Potosí have HPV infections which predominate in the 15-24 years group. Around half of the infections are by one viral type and the rest by 2-6 types. HPV33 is the most prevalent type, followed by HPV16. Overall HR-HPV prevalence increases with the severity of neoplastic lesions. HPV33 prevalence is highest in LSIL and its U-shaped trend with progressing neoplastic lesions

Estudio de vulnerabilidad a los fenómenos del ambiente natural.Caso: Departamento Pocito, San Juan, Argentina

OpenAIRE

Elsa Nacif, Nora; Espinosa, María del Pilar

2013-01-01

Este trabajo profundiza en conocimientos de orden conceptual y metodológico en el marco del desarrollo urbano territorial en zonas sísmicas. Su objetivo es estudiar y aplicar métodos de evaluación de vulnerabilidad, contemplando los condicionantes fundamentales del medio natural. Se presenta como caso de estudio el Departamento Pocito, de la provincia de San Juan, Argentina; pero sus principios y procedimientos metodológicos pueden adaptarse a los requerimientos de otras zonas de característi...

Brote de encefalitis de San Luis en el Área Metropolitana Buenos Aires Outbreack of St. Luis encephalitis in the Metropolitan Buenos Aires Area

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Alfredo Seijo

2011-06-01

Full Text Available Se describen los hallazgos epidemiológicos y clínicos de 13 enfermos con diagnóstico de infección por virus de la encefalitis de San Luis, con transmisión entre enero y marzo de 2010, en el Area Metropolitana Buenos Aires (AMBA. Los 13 enfermos, promedio de edad 38 años, tuvieron un comienzo agudo caracterizado por hipertermia y cefalea. Entre los días dos y diez de iniciados los síntomas, 7/13 enfermos tuvieron signos y síntomas de compromiso neurológico caracterizado por meningitis sin signos encefálicos en 1/7. En 6/7 los hallazgos más frecuentes fueron: rigidez de nuca, desorientación temporoespacial, fotofobia, confusión y alteración del lenguaje. Dos resonancias magnéticas y un electroencefalograma presentaron signos de afectación de lóbulos temporales. El líquido cefalorraquídeo se caracterizó por pleocitosis con predominio de células mononucleadas, glucorraquia normal y discreto aumento de proteínas. No hubo casos fatales. En 6/13 pacientes la sospecha clínica inicial fue dengue. Por la agrupación espacial y temporal de los casos puede considerarse un brote epidémico, el primero conocido en el AMBA, ya que no se había notificado previamente la circulación epidémica del virus.We describe the epidemiological and clinical findings of 13 patients with diagnosis of infection by St. Louis encephalitis virus, transmitted between January and March 2010 in Buenos Aires Metropolitan Area (AMBA. Thirteen patients, average age 38 years, had an acute onset with hyperthermia and headache. Between days two and ten of the onset of symptoms, 7/13 patients had signs and symptoms of neurological involvement. This was characterized by meningitis without encephalic sings in 1/7 and in 6/7 the most frequent findings were: stiff neck, disorientation, photophobia, confusion and language impairment. Two MR and one EEG revealed signs of involvement of temporal lobes. The cerebrospinal fluid showed pleocytosis with predominance of

Modification of a Community Garden to Attract Native Bee Pollinators in Urban San Luis Obispo, California

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Robbin W. Thorp

2009-01-01

Full Text Available Gardens have become increasingly important places for growing nutritional food, for conserving biodiversity, for biological and ecological research and education, and for community gathering. Gardens can also be designed with the goal of attracting specific wildlife, like birds and butterflies, but pollinators, like bees, can also be drawn to specially planned and modified gardens. A community garden in San Luis Obispo, California provided the setting for modification with the goal of attracting native bee pollinators by planting known bee-attractive plants. The local gardeners participated in a survey questionnaire and focused interviews to provide their input and interest in such a project. Presentations on our work with native bees in urban environments and gardening to attract bees were also given to interested gardeners. Work of this type also benefited from a lead gardener who managed donated bee plants and kept up momentum of the project. Modification of the garden and monitoring of native bees started in 2007 and continued through the growing season of 2009. Diversity of collected and observed native bees has increased each year since 2007. To date, 40 species in 17 genera of mostly native bees has been recorded from the garden, and this number is expected to increase through time.

A new species of Liolaemus (Reptilia: Squamata: Tropiduridae from Mendoza province, Argentina

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Etheridge, Richard

2001-05-01

Full Text Available Una nueva especie del complejo Liolaemus darwinii es descrita para el centro de la provincia de Mendoza, Argentina. Se parece más a L. olongasta y L. laurenti en que los machos adultos tienen pigmento negro en el pliegue antehumeral y manchas escapulares que no son agrandadas. Difiere de estas especies en tener un cuerpo adulto menor, un número mayor de escamas en la mitad del cuerpo, una cola más corta y un mayor número de poros precloacales en machos, y un patrón ventral distinto en machos adultos. En el norte de su distribución se encuentra L. darwinii en el norte de la provincia de Mendoza y en la provincia de San Luis, y en el sur en el oeste de la provincia de La Pampa, en el noroeste de la provincia de Neuquén y en la provincia de Río Negro, pero se desconoce si estas poblaciones del norte y del sur de L. darwtnii están separadas por la distribución de la nueva especie. Análisis cladísticos basados en comportamiento, morfología y secuencias de DNA muestran filogenias conflictivas, pero concuerdan en que la nueva especie es un miembro del grupo boulengeri, con afinidades más cercanas a L. darwinii, L. olongasta y L. laurenti. A new species,of the Liolaemus darwinii complex is described from central Mendoza Province, Argentina. It most closely resembles L. olongasta and L. laurenti in that adult males have black pigment in the antehumeral fold and scapular spots that are not enlarged. It differs from these species in having a smaller adult body size, a higher number of midbody scales, a shorter tail, more precloacal pores in males, and a different adult male ventral body pattern. Its range is bordered by L. darwinii on the north in northern Mendoza and San Luis provinces, and on the south in western La Pampa and northwestern Neuquén and Río Negro provinces, but it is unknown whether these northern and southern populations of L. darwinii are separated by the range of the new species. Cladistic analyses based on behaviour

Le sans fil, un outil de gestion des ressources au Mozambique ...

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

3 févr. 2011 ... ... nouvelle réserve naturelle de la province septentrionale de Niassa. Heureusement, son téléphone sans fil à haute fréquence lui a permis d'appeler sa station de base à l'aide. Malgré la distance, ses collègues ont pu lui porter secours en demandant à une pourvoirie d'envoyer un petit avion le cueillir.

Mexican Trends: The Next Five Years,

Science.gov (United States)

1985-12-12

either Argentina (60%) or Chile (75%) and far higher than Brazil (26%), whose total debt was around the same size. Second, of the aggregate Mexican...liberalization policies in Brazil, Argentina, and Chile were hammered into place not by politicians and political parties but by technocrats and...accident that violence has exploded in three border cities ( Agua ; Prieta, Piedras Negras, and San Luis) where the opposition had access to the U.S. media

Petrographical and geochemical characterization and deformation conditions of the San Cristobal pluton, Sierra de Velasco, La Rioja, Argentina; Caracterizacion petrografica y geoquimica y condiciones de deformacion del pluton San Cristobal, Sierra de Velasco, La Rioja, Argentina

Energy Technology Data Exchange (ETDEWEB)

Bellos, L.I.; Toselli, A.J.; Rossi, J.N.; Grosse, P.; Rosa, J.D. de la; Castro, A.

2010-07-01

The San Cristobal pluton is a 35 km2 granitic body that outcrops at the southestern tip of the Sierra de Velasco, located west of La Rioja city, Argentina. It is formed by monzogranites and syenogranites, together with scarce granodiorites, with medium to fine-grained, equigranular to slightly porphyritic textures. Their mineral assemblage consists of quartz + microcline + plagioclase + biotite {+-} muscovite + zircon + apatite + magnetite. The granite contains dioritic to tonalitic mafic enclaves. The central and eastern parts of the granite have been deformed by the NNW-SSE trending South Mylonitic shear zone formed by mylonitic rocks. The metamorphic host-rock is represented by scarce greenschist facies xenoliths and hornfels with the high T/P assemblage K-feldspar - cordierite - biotite {+-} sillimanite. The granites are calc-alkaline, weak- to moderately peraluminous, and formed as part of a continental magmatic arc developed along the active margin of western Gondwana during the Early Paleozoic. The depth of emplacement of the San Cristobal pluton is estimated at {approx}12 km. (Author).

Adaptación curricular en un contexto de encierro, innovaciones del programa de Biología en la escuela de la penitenciaría de la provincia de San Luis

OpenAIRE

Gil, Angélica; Polanco, Miryam

2015-01-01

La Ley Nacional de Educación N° 26206, legitima la obligatoriedad de la educación en contextos de encierro que constituye un escenario complejo para la política educativa. El presente trabajo se ha desarrollado, en la Escuela Especial 443 Islas Malvinas ubicada en el Servicio Penitenciario Provincial (SPP) de San Luis, y tiene como objetivo Analizar y reflexionar sobre la selección y organización de los contenidos en el currículo de ciencias y en especial el de biología, en el mencionado cont...

Embarazo, parto y puerperio: creencias y prácticas de parteras en San Luis Potosí, México Gravidez, parto e puerpério: crenças e práticas de parteiras em San Luis Potosi, México Pregnancy, delivery and puerperium: beliefs and practices of midwives in San Luis Potosi, Mexico

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Blanca Pelcastre

2005-12-01

Full Text Available OBJETIVO: Documentar las creencias y las prácticas de las parteras tradicionales respecto al embarazo parto y puerperio. MÉTODOS: Aprovechando un curso de capacitación de 160 parteras tradicionales locales de las regiones Media y Huasteca del Estado de San Luis Potosí, México, dos de las enfermeras-instructoras entrevistaron a 25 de los capacitandos, apoyadas por un miembro de las comunidades náhuatl y tenek. La identidad de los participantes se mantiene anónima y se obtuvo permiso para publicar los resultados mediante consentimiento informado. RESULTADOS: Las prácticas de las parteras (os tradicionales son comunes en los grupos sociales que carecen de servicios de salud. Sus funciones no están limitadas al parto e incluyen nutrición, cuidados prenatales, del puerperio y la lactancia, así como apoyo afectivo emocional de las madres parturientas y sus familiares. En este estudio se registraron varios mitos y terapias tradicionales. CONCLUSIÓN: Los recursos de la terapia tradicional y de la atención primaria de la salud de las parteras Náhuatl y Tenek son útiles y benéficos para los cuidados perinatales.OBJETIVO: Documentar as crenças e as práticas das parteiras tradicionais quanto à gravidez, parto e puerpério. MÉTODO: Aproveitando um curso de capacitação de 160 parteiras tradicionais locais das regiões Media e Huasteca do Estado de São Luís Potosi, México, duas das enfermeiras-instrutoras entrevistaram 25 participantes do curso, apoiadas por um membro das comunidades náhuatl e tenek. Foi garantido o anonimato dos participantes, que concordaram com a publicação dos resultados, mediante o termo de consentimento esclarecido. RESULTADOS: As práticas das (os parteiras (os tradicionais são comuns nos grupos sociais carentes de servicos de saúde. Suas funções não estão limitadas ao parto, compreendem nutrição, cuidados do pré-natal, do puerpério e da lactância, assim como apoio afetivo emocional das m

Evolución metamórfica de los gabros coroníticos de El Arenal, faja máfica-ultramáfica El Destino-Las Águilas, sierra de San Luis

OpenAIRE

N. Brogioni; G. Cruciani; M. Franceschelli; O. Vaselli

2007-01-01

Las meta-melagabronoritas coroníticas se localizan en uno de los cuerpos de El Arenal, pertenecientes a la faja máfica-ultramáfica El Destino-Las Aguilas del flanco oriental de la sierra de San Luis. Son rocas de grano fino y representan fraccionados poco evolucionados, con alto contenido de Cr-Ni y [Mg/Mg+FeT++] comprendidas entre 0,72 y 0,75, derivados de un magma toleítico olivínico de bajo Ti, cuyo emplazamiento precedió a la deformación penetrativa y metamorfismo famatinianos. Las microe...

Differential cooling and uplift of the eastern Sierras Pampeanas (Central Argentina)

International Nuclear Information System (INIS)

Steenken, A; Martino, R.; Wemmer, K.; Siegesmund, S.; Drobe, M.; Lopez de Luchi, M.

2007-01-01

The Eastern Sierras Pampean as are constituted by the Neo proterozoic to early Cambrian basement of the Sierras de Cordoba, San Luis and eastern La Rioja (29grades 00seconds - 33grades 30seconds, 64grades 00seconds - 6 00W) outcropping in the east of the Chaco-Parana basin. High-grade metamorphic gneisses and schists dominate the basement. The intrusion of magmatic rocks took place during the Pampean, Famatinian and Achalian cycles. The basement is divided in different lithological and structural domains by N-S trending ductile shear-zones. The east-dipping compressive Los Tuneles and Guacha Corral shear-zones at the western limit of the Sierras de Cordoba are the most important with respect to the exhumation history of the Sierras. An extensive survey on the cooling history by K/Ar biotite and muscovite dating of the basement rocks of the Sierras de Cordoba and San Luis was carried out and interpreted in terms of a differential exhumation history of the different blocks. Beginning of cooling in the Sierra de San Luis is documented by large muscovite booklets from pegmatites yielding ages between 438 Ma and 448 Ma. Slow cooling rates (3grades/Ma) led to a systematic reset of the K/Ar ages in the fine-grained muscovites forming two groups between 430 Ma and 410 Ma and 410 Ma and 380 Ma resulting from the Achalian deformation in the upper Silurian-Upper Devonian. In contrast to the Upper Ordovician/-Llandoverian cooling onset in the Sierra de San Luis, large pegmatitic muscovites from the Sierras de Cordoba record late Cambrian to Early Ordovician ages between 493 Ma and 474 Ma. The limit between those age domains is marked by the Los Tuneles and Guacha Corral shear-zones accommodating the vertical displacement responsible for the different ages. Cooling ages from the shear-zone rocks at 430 Ma define the upper limit for the contraction that is related to the collision with the Cuyania Terrane to the western outboard of Gondwana

Community Response to Concentrating Solar Power in the San Luis Valley: October 9, 2008 - March 31, 2010

Energy Technology Data Exchange (ETDEWEB)

Farhar, B. C.; Hunter, L. M.; Kirkland, T. M.; Tierney, K. J.

2010-06-01

This report is about the social acceptance of utility-scale concentrating solar power (CSP) plants in the San Luis Valley, approximately 200 miles southwest of Denver, Colorado. The research focused on social factors that may facilitate and impede the adoption and implementation of CSP. During the winter of 2008-2009, interviews were conducted with a purposive sample of 25 CSP-related stakeholders inside and outside the Valley. Interviews focused on the perceived advantages and disadvantages of siting a hypothetical 100-MW CSP facility in the Valley, the level of community support and opposition to CSP development, and related issues, such as transmission. State policy recommendations based on the findings include developing education programs for Valley residents, integrating Valley decision makers into an energy-water-land group, providing training for Valley decision makers, offering workforce training, evaluating models of taxation, and forming landholder energy associations. In addition, the SLV could become a laboratory for new approaches to CSP facility and transmission siting decision-making. The author recommends that outside stakeholders address community concerns and engage Valley residents in CSP decisions. Engaging the residents in CSP and transmission decisions, the author says, should take parallel significance with the investment in solar technology.

Concentrations of Environmental Chemicals in Urine and Blood Samples of Children from San Luis Potosí, Mexico.

Science.gov (United States)

Perez-Maldonado, Ivan N; Ochoa-Martinez, Angeles C; Orta-Garcia, Sandra T; Ruiz-Vera, Tania; Varela-Silva, Jose A

2017-08-01

Human biomonitoring (HBM) is an appreciated tool used to evaluate human exposure to environmental, occupational or lifestyle chemicals. Therefore, the aim of this study was to evaluate the exposure levels for environmental chemicals in urine and blood samples of children from San Luis Potosí, Mexico (SLP). This study identifies environmental chemicals of concern such as: arsenic (45.0 ± 15.0 µg/g creatinine), lead (5.40 ± 2.80 µg/dL), t,t-muconic acid (266 ± 220 µg/g creatinine), 1-hydroxypyrene (0.25 ± 0.15 µmol/mol creatinine), PBDEs (28.0 ± 15.0 ng/g lipid), and PCBs (33.0 ± 16.0 ng/g lipid). On the other hand, low mercury (1.25 ± 1.00 µg/L), hippuric acid (0.38 ± 0.15 µg/g creatinine) and total DDT (130 ± 35 ng/g lipid) exposure levels were found. This preliminary study showed the tool's utility, as the general findings revealed chemicals of concern. Moreover, this screening exhibited the need for HBM in the general population of SLP.

Violencia en estudiantes universitarios en San Luis Potosí, México: Un estudio desde la perspectiva de género Violence in college students at San Luis Potosi, Mexico: A study from gender perspective

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Yesica Yolanda Rangel Flores

2012-09-01

Full Text Available Objetivo: Identificar las correlaciones que se establecen entre género y autopercepción homicida y suicida en estudiantes de una universidad de la Región Media en San Luís Potosí, México. Metodología: Estudio transversal, descriptivo y correlacional; mediante muestreo probabilístico estratificado se seleccionaron 250 estudiantes a quienes se aplicó un instrumento creado ex profeso y validado (alfa=.78. Las variables de estudio fueron: agresión padecida, agresión ejercida e ideación homicida y suicida; el análisis de los resultados se realizó desde el enfoque de género. Resultados principales: El 15.6% de los estudiantes se identifican con perfil agresor, solo un 6% con perfil de víctima, los hombres más que mujeres canalizan la violencia a través de conductas agresoras hacia los demás (x2 11.262 p= .024, las mujeres practican más la ideación suicida (x2 10.832 p= .031. Conclusión: La conducta violenta se encontró relacionada al rol social de género, en los hombres dirigida hacia otros y en las mujeres en forma autoinfringida.Objective: Identify correlations between and homicidal and suicidal self-perception in student of a University in the middle region of San Luis Potosí, Mexico. Methods: A cross-sectional, descriptive and correlation study took place, by means of a sampling stratified probability instrument we selected 250 students who applied a purpose-built created and validated instrument (alpha=.78. The variables were: suffered aggression, exercised aggression and to devise suicidal/homicide. Results: The study showed that 15.6% of students identified themselves with the profile of an aggressor, while only 6 percent with a victim profile, men more than women channel violence through aggressive behavior towards others (x2 11.262 p= .024, while women practice more a suicidal ideation (x2 10.832 p= .031. Conclusions: Therefore, violent behavior was found related to the social role of gender, in men directed towards

Biología reproductiva, crecimiento y dieta del caracol ciego Buccinanops cochlidium (Dillwyn, 1817) (Gastropoda: Nassariidae) en el golfo San José, Patagonia Argentina

OpenAIRE

Averbuj, Andrés

2009-01-01

El genero Buccinanops (dŽOrbigny, 1841) (Caenogastropoda, Nassariidae) es endémico del océano Atlántico sudoccidental, y su nombre significa "sin ojos", debido a su ausencia en los adultos. El caracol Buccinanops cochlidium (Dillwyn, 1817) se distribuye en aguas someras de las costas desde el paralelo 19ºS (Brasil) hasta el golfo San Matias (43º44ŽS) en Argentina, a profundidades entre 5 y 50m. En el golfo San José habita aguas someras en fondos de sedimento fino. Se realizo un estudio de la ...

Occurrence of the haemocyte parasite Bonamia sp. in flat oysters Ostrea puelchana farmed in San Antonio Bay (Argentina).

Science.gov (United States)

Kroeck, Marina A; Montes, Jaime

2005-02-28

Culture of native flat oysters Ostrea puelchana d'Orbigny in San Antonio Bay (San Matías Gulf, Argentina) began in 1995. After elevated mortality (33%) occurred in September 1996, 18 mo after immersion, histopathological analysis and evaluation of parasitic prevalence was carried out. In October 1997, after 31 mo of cultivation, cumulative mortality was 80%, and in December of the same year, when individuals reached marketable size, mortality was 95% and culture was discontinued. The present study describes the haemocytic parasitism that affected O. puelchana, and suggests that a Bonamia sp. was the etiological agent. This parasite should be considered as a different species from Bonamia sp. detected in Australia and New Zealand until more studies are made to determine the correct taxonomy. This work constitutes the first record of this haemocyte parasite in flat oysters from the Argentinean coast.

Periodismo Digital y Medios de Comunicación Pública: Las Malas Noticias

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Sergio Ricardo Quiroga

2016-07-01

Full Text Available En este trabajo nos hemos propuesto estudiar como la información policial y de seguridad es presentada por la Agencia de Noticias, San Luis. Examinamos la producción de información policial y de seguridad producida durante el año 2013 por  la Agencia de Noticias San Luis (ANSL, una plataforma noticiosa estatal, creada para transmitir información gubernamental en la provincia de San Luis, Argentina en el año 2012.Las iniciativas y progresos para la población en materia policial y de seguridad, parecen tener para los organismos decisorios una dimensión material-funcional, referida exclusivamente a la mejora de los destacamentos, la entrega de móviles policiales, los controles y operativos. Esa visión es difundida por la agencia estatal de informaciones y no contribuye a la promoción de ideas y debates sobre la participación ciudadana en las políticas de seguridad y al desarrollo de la democracia.

Primer reporte de parasitismo de una garrapata blanda del género Ornithodoros (Ixodida: Argasidae sobre Rhinella arenarum (Anura: Bufonidae en el departamento de Valle Fértil, San Juan, Argentina

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Acosta, Juan Carlos

2012-08-01

Full Text Available El objetivo de la presente comunicación es reportar por primera vez un caso de parasitismo en Rhinella arenarum y a la vez mencionar el primer registro del género Ornithodoros en el departamento de Valle Fértil, San Juan, Argentina. Siendo el primer registro de parasitismo de anfibios por Ornithodoros en la Argentina y el segundo para el neotrópico.

The paradigm of paraglacial megafans of the San Juan river basin, Central Andes, Argentina

Science.gov (United States)

Suvires, Graciela M.

2014-11-01

The spatial distribution and several morphometric characteristics of the Quaternary alluvial fans of the San Juan River, in the province of San Juan, at the Central and Western part of Argentina, have been studied to classify them as paraglacial megafans, as well to ratify its depositional environmental conditions. The high sedimentary load exported by San Juan river from the Central Andes to the foreland depressions is estimated about 3,682,200 hm3. The large alluvial fans of Ullum-Zonda and Tulum valleys were deposited into deep tectonic depressions, during the Upper Pleistocene deglaciation stages. The outcome of collecting remotely sensed data, map and DEM data, geophysical data and much fieldwork gave access to morphometric, morphographic and morphogenetic data of these alluvial fans. The main drainage network was mapped on processed images using QGis (vers.2.0.1). Several fan morphometric parameters were measured, such as the size, the shape, the thickness, the surface areas and the sedimentary volume of exported load. The analyzed fans were accumulated in deep tectonic depressions, where the alluvium fill reaches 700 to 1200 m thick. Such fans do not reach the large size that other world megafans have, and this is due to tectonic obstacles, although the sedimentary fill average volume surpasses 514,000 hm3. The author proposes to consider Ullum-Zonda and Tulum alluvial fans as paraglacial megafans. According to the stratigraphic relationships of the tropical South American Rivers, the author considers that the San Juan paraglacial megafans would have occurred in the period before 24 ka BP , possibly corresponding to Middle Pleniglacial (ca 65-24ka BP). They record colder and more humid conditions compared with the present arid and dry conditions.

Desarrollo poblacional de Diaspidiotus perniciosus (Hemiptera: Diaspididae en cultivos de manzano de San Carlos, Mendoza, Argentina Population development of Diaspidiotus perniciosus (Hemiptera: Diaspididae in apple orchards in San Carlos, Mendoza, Argentina

Directory of Open Access Journals (Sweden)

Guillermo P. Lopez Garcia

2011-12-01

Full Text Available Se estudió la bionomía de Diaspidiotus perniciosus Comstock ("escama de San José", en manzanos de la variedad "Red delicious" de San Carlos, Mendoza, Argentina, durante los ciclos productivos 2007-2008 y 2008-2009. Se determinó el número de generaciones anuales y se estudiaron las fluctuaciones poblacionales asociadas a la integral térmica para la especie en esta región. D. perniciosus presenta dos generaciones superpuestas al ciclo del cultivo, mientras que las ninfas (N1 y N2 de la tercera generación se desarrollan solamente hasta el final de la temporada estival y pasan al estado de quiescencia, en el que permanecen durante el invierno. El desarrollo de D. perniciosus en esta zona coincide con el de esta especie en la zona frutícola del centro de Chile en cuanto al número de generaciones y al periodo de quiescencia invernal. La población quiescente en Chile está integrada predominantemente por ninfas del primer estadio (N1, mientras que en San Carlos, Mendoza, la población quiescente está integrada principalmente por ninfas del segundo estadio (N2. La similitudes entre ambas poblaciones se deben, probablemente, a las coincidencias en latitud, clima y especie hospedera. El impacto económico de D. perniciosus en la zona de estudio tiene mayor relevancia durante los meses de diciembre y enero, cuando se observa una alta incidencia de daños en los frutos y las hojas; este es el momento decisivo para implementar medidas de control fitosanitario. Estas deberán aplicarse en función de los máximos poblacionales de N1 que se producen con 600-650 Grados-Día (ºD en diciembre y con 1.170-1.270ºD en enero. En las temporadas en las que la densidad poblacional de la plaga es especialmente alta, podrían incorporarse medidas adicionales de control con 1.800-2.000ºD durante el mes de abril. Los resultados de estos estudios representan una herramienta predictiva, que permitirá elaborar estrategias para el control de poblaciones de D

San La Muerte (Argentina. Devoción y existencia. Entre Los dioses y el abandono

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Walter Alberto Calzato

2008-06-01

Full Text Available En este artículo analizo la praxis devocional del culto a San La Muerte en la provincia de Buenos Aires (Argentina. Interpreto cómo los devotos entablan su relación con el santo y cómo la traducen en sus consideraciones sobre el más allá. Ellos encuentran, en la vida cotidiana y en el sentido común los parámetros para entender su devoción, lo que les permite encontrar su propio sentido. La experiencia religiosa, definida por autores e informantes, nos da un punto de referencia para entender cómo es, en el fondo, esta devoción.

Primer registro de Vespula vulgaris (Hymenoptera: Vespidae en la Argentina First record of Vespula vulgaris (Hymenoptera: Vespidae in Argentina

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Maité Masciocchi

2010-12-01

Full Text Available Vespula vulgaris (Linnaeus es un véspido social nativo de la región Holártica. En este trabajo reportamos la primera detección de esta especie en Argentina. Obreras de esta avispa fueron capturadas cerca de la ciudad de San Carlos de Bariloche (Argentina en Febrero de 2010, mientras se tomaban muestras de otra avispa invasora, Vespula germanica (Fabricius o chaqueta amarilla, de morfología externa y hábitos similares a la anteriormente mencionada. Además, detallamos algunos caracteres de identificación y características biológicas.Vespula vulgaris (Linnaeus is a social vespid native to the Holarctic region. The first detection of this species in Argentina is here reported. Workers were captured close to San Carlos de Bariloche (Argentina during February 2010, while sampling for another successful invader, the German wasp or Yellowjacket, Vespula germanica (Fabricius. Both these wasp species are very similar morphologically and share a number of common habits. Also, some identification features and biological characters are here explained.

Confined aquifer head measurements and storage properties in the San Luis Valley, Colorado, from spaceborne InSAR observations

Science.gov (United States)

Chen, Jingyi; Knight, Rosemary; Zebker, Howard A.; Schreüder, Willem A.

2016-05-01

Interferometric Synthetic Aperture Radar (InSAR), a remote sensing technique for measuring centimeter-level surface deformation, is used to estimate hydraulic head in the confined aquifer of the San Luis Valley (SLV), Colorado. Reconstructing head measurements from InSAR in agricultural regions can be difficult, as InSAR phase data are often decorrelated due to vegetation growth. Analysis of 17 L-band ALOS PALSAR scenes, acquired between January 2007 and March 2011, demonstrates that comprehensive InSAR deformation measurements can be recovered over the vegetated groundwater basin with an improved processing strategy. Local skeletal storage coefficients and time delays between the head change and deformation are estimated through a joint InSAR-well data analysis. InSAR subsidence estimates are transformed to head changes with finer temporal and spatial resolution than is possible using existing well records alone. Both InSAR and well data suggest that little long-term water-storage loss occurred in the SLV over the study period and that inelastic compaction was negligible. The seasonal head variations derived from InSAR are consistent with the existing well data at most locations where confined aquifer pumping activity dominates. Our results demonstrate the advantages of InSAR measurements for basin-wide characterization of aquifer storage properties and groundwater levels over agricultural regions.

Field-evolved resistance to Bt maize in sugarcane borer (Diatraea saccharalis) in Argentina.

Science.gov (United States)

Grimi, Damián A; Parody, Betiana; Ramos, María Laura; Machado, Marcos; Ocampo, Federico; Willse, Alan; Martinelli, Samuel; Head, Graham

2018-04-01

Maize technologies expressing Bacillus thuringiensis (Bt) insecticidal proteins are widely used in Argentina to control sugarcane borer (Diatraea saccharalis Fabricius). Unexpected D. saccharalis damage was observed to Bt maize events TC1507 (expressing Cry1F) and MON 89034 × MON 88017 (expressing Cry1A.105 and Cry2Ab2) in an isolated area of San Luis Province. Diatraea saccharalis larvae were sampled from MON 89034 × MON 88017 fields in the area to generate a resistant strain (RR), which was subsequently characterized in plant and diet bioassays. Survivorship of the RR strain was high on TC1507 leaf tissue, intermediate on MON 89034 × MON 88017, and low on MON 810 (expressing Cry1Ab). The RR strain had high resistance to Cry1A.105 (186.74-fold) and no resistance to Cry2Ab2 in diet bioassays. These results indicate resistance to Cry1F and Cry1A.105 (and likely cross-resistance between them) but not to Cry1Ab or Cry2Ab2. Resistance to MON 89034 × MON 88017 was functionally recessive. Reviews of grower records suggest that resistance initially evolved to Cry1F, conferring cross-resistance to Cry1A.105, with low refuge compliance as the primary cause. A mitigation plan was implemented in San Luis that included technology rotation, field monitoring, and grower education on best management practices (BMPs) including refuges. In the affected area, the resistance to Cry1F and Cry1A.105 is being managed effectively through use of MON 89034 × MON 88017 and MON 810 in combination with BMPs, and no spread of resistance to other regions has been observed. © 2017 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. © 2017 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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

Latest Miocene-earliest Pliocene evolution of the ancestral Rio Grande at the Española-San Luis Basin boundary, northern New Mexico

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Daniel J. Koning,; Aby, Scott B.; Grauch, V. J.; Matthew J. Zimmerer,

2016-01-01

We use stratigraphic relations, paleoflow data, and 40Ar/39Ar dating to interpret net aggradation, punctuated by at least two minor incisional events, along part of the upper ancestral Rio Grande fluvial system between 5.5 and 4.5 Ma (in northern New Mexico). The studied fluvial deposits, which we informally call the Sandlin unit of the Santa Fe Group, overlie a structural high between the San Luis and Española Basins. The Sandlin unit was deposited by two merging, west- to southwest-flowing, ancestral Rio Grande tributaries respectively sourced in the central Taos Mountains and southern Taos Mountains-northeastern Picuris Mountains. The river confluence progressively shifted southwestward (downstream) with time, and the integrated river (ancestral Rio Grande) flowed southwards into the Española Basin to merge with the ancestral Rio Chama. Just prior to the end of the Miocene, this fluvial system was incised in the southern part of the study area (resulting in an approximately 4–7 km wide paleovalley), and had sufficient competency to transport cobbles and boulders. Sometime between emplacement of two basalt flows dated at 5.54± 0.38 Ma and 4.82±0.20 Ma (groundmass 40Ar/39Ar ages), this fluvial system deposited 10–12 m of sandier sediment (lower Sandlin subunit) preserved in the northern part of this paleovalley. The fluvial system widened between 4.82±0.20 and 4.50±0.07 Ma, depositing coarse sand and fine gravel up to 14 km north of the present-day Rio Grande. This 10–25 m-thick sediment package (upper Sandlin unit) buried earlier south- to southeast-trending paleovalleys (500–800 m wide) inferred from aeromagnetic data. Two brief incisional events are recognized. The first was caused by the 4.82±0.20 Ma basalt flow impounding south-flowing paleodrainages, and the second occurred shortly after emplacement of a 4.69±0.09 Ma basalt flow in the northern study area. Drivers responsible for Sandlin unit aggradation may include climate

Arsenic and cadmium exposure in children living near a smelter complex in San Luis Potosi, Mexico

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Diaz-Barriga, F.; Santos, M.A.; Mejia, J.J.; Batres, L.; Yanez, L.; Carrizales, L.; Vera, E.; del Razo, L.M.; Cebrian, M.E. (Universidad Autonoma de San Luis Potosi (Mexico))

1993-08-01

The main purpose of this study was to assess environmental contamination by arsenic and cadmium in a smelter community (San Luis Potosi City, Mexico) and its possible contribution to an increased body burden of these elements in children. Arsenic and cadmium were found in the environment (air, soil, and household dust, and tap water) as well as in the urine and hair from children. The study was undertaken in three zones: Morales, an urban area close to the smelter complex; Graciano, an urban area 7 km away from the complex; and Mexquitic, a small rural town 25 km away. The environmental study showed that Morales is the most contaminated of the zones studied. The range of arsenic levels in soil (117-1396 ppm), dust (515-2625 ppm), and air (0.13-1.45 micrograms/m3) in the exposed area (Morales) was higher than those in the control areas. Cadmium concentrations were also higher in Morales. Estimates of the arsenic ingestion rate in Morales (1.0-19.8 micrograms/kg/day) were equal to or higher than the reference dose of 1 microgram/kg/day calculated by the Environmental Protection Agency. The range of arsenic levels in urine (69-594 micrograms/g creatinine) and hair (1.4-57.3 micrograms/g) and that of cadmium in hair (0.25-3.5 micrograms/g) indicated that environmental exposure has resulted in an increased body burden of these elements in children, suggesting that children living in Morales are at high risk of suffering adverse health effects if exposure continues.

Teresa y Luis, Luis y Teresa. Dos santos en tiempos recios

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Emilio Callado Estela

2016-06-01

Full Text Available El presente artículo analiza la relación entre dos grandes santos españoles de la Contrarreforma Católica, Teresa de Jesús y el dominico fray Luis Bertrán. The present article analyses the relation between two big Spanish saints of the Catholic Counterreformation, Teresa de Jesus and the Dominican monk Luis Bertrán.

Uranium deposit types and resources of Argentina

International Nuclear Information System (INIS)

Lopez, L.; Cuney, M.

2014-01-01

The uranium-related activities in Argentina begun in the 1950s and, as a result of the systematic exploration, several types of deposits have been discovered since then: volcanic and caldera-related, sandstone-hosted, vein spatially related to granite (intragranitic and perigranitic) and surficial. The deposits that have been the focus of the most important uranium exploitations are the ones that belong to the volcaniclastic type. These are localized in Permian formations associated with synsedimentary acid volcanism in the Sierra Pintada district (Mendoza province). The volcanic and caldera related type is also present in the Laguna Colorada deposit (Chubut province) located in the San Jorge basin (Cretaceous). Several important uranium mineralisations have been identified in Cretaceous fluvial sandstones and conglomerates, among which the most relevant is the Cerro Solo deposit (Chubut province) that corresponds to the paleochannel structure subtype. Other subtypes of sandstone model have been studied. For instance, the Don Otto deposit (Salta province), located in the Salta Group Basin (Cretaceous - Tertiary), belongs to the tabular U-V subtype. The roll front subtype can be also found in the Los Mogotes Colorados deposit (La Rioja province) which is hosted by Carboniferous continental sandstones. The uranium mineralisations in veins and disseminated episyenites within peraluminous leucogranites of the Sierras Pampeanas (Cordoba and San Luis provinces) represent other types of existing deposits. These granites are Devonian – Carboniferous and the related deposits are comparable to those from the Middle European Variscan. There are also other vein-type uranium deposits located in metamorphic basement in the periphery of high potassium calcalkaline granites (Sierras Pampeanas of Catamarca and La Rioja provinces), where the mineralisation control is mainly structural. The current uranium identified resources of the country are approximately 24,000 tU in the

División social del espacio residencial y migraciones: El caso de San Carlos de Bariloche, Argentina

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Brenda Matossian

2015-09-01

Full Text Available El espacio intraurbano en las ciudades contemporáneas de América Latina acusa profundas divisiones sociales, dado el tipo de desarrollo que han tenido bajo los modelos neoliberales imperantes. En este artículo se analiza la ciudad como parte de un devenir histórico-político particular, desde un enfoque multidimensional en el que se hace especial énfasis en la relación establecida entre las divisiones territoriales internas y el componente migratorio de la población. San Carlos de Bariloche (Patagonia argentina posee una heterogénea composición étnico-cultural, fruto de diversos flujos migratorios internos e internacionales. Profundas y complejas distancias materiales y simbólicas separan la ciudad turística (la "Suiza argentina" asociada a una elite nutrida por migrantes internos urbanos y europeos, de la ciudad de "El Alto", donde migrantes internos rurales y chilenos se han asentado en barrios populares. La relación clase-origen se entrelaza en una división social del espacio residencial, que se profundiza y produce segregación urbana y refuerza las tensiones.

Luminescence dating of anthropogenic features of the San Luis Valley, Colorado: from stone huts to stone walls

Science.gov (United States)

Mahan, Shannon; Donlan, Rebecca A.; Kardos, Barbara Maat

2015-01-01

The Snake Nest Wall site and the Crestone Stone Huts are in the northern San Luis Valley, Colorado, and provide a unique opportunity to date high-altitude archeological sites of unknown age and origin using optically stimulated luminescence (OSL). We sampled sediment underlying foundation stones of these structures to establish a chronological framework for each site's construction. OSL dating of the quartz grains directly under the Snake Nest Wall suggest that the stones and, therefore, the structure was most recently emplaced between 1855 and 1890 A.D. Dating of the sediment beneath the Crestone Stone Huts suggests the construction time of these huts is between 1860 and 1890 A.D. Analysis of the equivalent dose (DE) dispersion of the OSL samples at Snake Nest Wall and the Crestone Huts shows that the majority of sediments were fully bleached prior to deposition and the low scatter suggests that short-term or shallow alluvial processes were the dominant transport for sediments. In both cases, the OSL ages show that the construction was during very recent historical times, although it is likely that the Snake Nest Wall was rebuilt in the late 19th century. Further study is warranted at the Snake Nest Wall since it shows signs of greater antiquity and a continued presence of human use. The Crestone Huts are shown to be a product of railroad building during the boomtown days of Lucky and Crestone.

Factores asociados al estado de salud de adolescentes con exposición continua a plomo, arsénico y flúor, que viven cerca de una zona metalúrgica en la ciudad de San Luis Potosí

OpenAIRE

Cossío Torres, Patricia Elizabeth

2011-01-01

identificar los factores individuales, familiares, sociales y de exposición a agentes contaminantes; que intervienen en el estado de salud actual (nutricional, cognitivo, salud mental y rendimiento escolar) y conductas de riesgo para la salud (agresión/delincuencia, consumo riesgoso y dañino de alcohol, consumo de tabaco y uso/abuso de sustancias) de un grupo de adolescentes expuestos crónicamente a plomo, arsénico y flúor. Tesis de Posgrado de la Universidad Autonoma de San Luis Pot...

El porvenir del pasado penitenciario. Sobre la construcción de una agenda de trabajo para la historia de la prisión en la Argentina (1860-1950)

OpenAIRE

González Alvo, Luis Gabriel; Nuñez, Jorge Alberto

2017-01-01

Este artículo propone una agenda de trabajo interdisciplinaria para el estudio de la historia de la prisión en la Argentina de los siglos XIX y XX. This article proposes an agenda of interdisciplinary work for the study of the history of the prison in Argentina in the nineteenth and twentieth centuries. Fil: González Alvo, Luis Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán; Argentina Fil: Nuñez, Jorge Alberto. Consejo ...

Evaluación de la contaminación por metales en pasivos ambientales de actividades metalúrgicas históricas en el distrito minero Cerro de San Pedro, S.L.P. (México)

OpenAIRE

Rodríguez y Rodríguez, Yolanda

2011-01-01

Pasivos ambientales minero-metalúrgicos son frecuentemente encontrados en regiones donde estas actividades se han desarrollado históricamente, como es el caso del Estado de San Luis Potosí, en donde desde el siglo XVI han existido importantes centros mineros, destacando entre ellos el Distrito Minero de Cerro de San Pedro que se localiza en la porción centro-sur del Estado, 19.5 kilómetros al NW de la ciudad de San Luis Potosí. La situación geográfica del sitio donde se descubriero...

La violencia contra mujeres en comunidades transnacionales de San Luis Potosí, México: un problema de salud pública

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Yesica Yolanda Rangel Flores

2016-01-01

Full Text Available Resumen: La violencia contra las mujeres es un problema mundial, dado el impacto que tiene en la calidad de vida de quienes la viven, bajo la complicidad de una cultura patriarcal y un Estado que la invisibiliza. Este artículo busca hacer visibles los contextos de violencia en que viven mujeres "parejas de migrantes" en las localidades de origen, problematizando cómo atentan contra su salud física y mental. Se trató de un estudio cualitativo con enfoque en la antropología interpretativa, con 21 mujeres de localidades rurales y urbanas de San Luis Potosí, México; se aplicaron entrevistas desde el marco de historia de la vida cotidiana y análisis de discurso. Los resultados muestran que las mujeres viven mayor violencia cuando sus parejas migran, nuevas formas de violencia se cometen contra ellas, y los ámbitos en que la sufren incluyen el doméstico y el comunitario. La violencia contra las mujeres constituye un problema de salud pública que debe atenderse desde un marco sensible a las dinámicas sociales y culturales que caracterizan los contextos en que se aplican los programas de salud.

Women and media. Institutional cultures, inequality and dynamics of power: 1982 to 2002

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Sergio Ricardo Quiroga

2016-06-01

Full Text Available This paper studies the participation of women in the media seeking to examine whether there was discrimination against them, the characteristics of female employment, institutional cultures and the dynamics of power in the period between 1982 and 2002 in the city of Villa Mercedes, San Luis, Argentina. This development is also a research effort to try to display the status of women in the media world in a certain context and historical moment. Stereotypical representation of female workers in the media has been one of the central themes of the first reviews and studies on communication and gender. Using tools of qualitative methodology using document analysis and semi-structured interviews examine the institutional and dynamic cultures of power in women who worked in the media in the city of Villa Mercedes, San Luis.

El deterioro del Capital Social como promotor de la violencia y la delincuencia entre la población del municipio de Rioverde, San Luis Potosí

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José Guadalupe RIVERA-GONZÁLEZ

2016-01-01

Full Text Available El fenómeno de la violencia y la delincuencia son dos de los problemas principales que en la ac - tualidad se padecen en muchas entidades y localidades de México. Para erradicarlos es necesario partir del conocimiento particular de sus causas y efectos en las zonas afectadas. En el presente trabajo se considera fundamental conocer la relación de la violencia con uno de los principales componentes de la sociedad: el Capital Social. El material de análisis procede de una serie de entrevistas que formaron parte de un proyecto titulado: Diagnóstico local sobre la realidad so - cial, económica y cultural de la violencia y la delincuencia del municipio de Rioverde San Luis Potosí . A partir de las narraciones de algunos ciudadanos entrevistados, es posible conocer los factores que desde su punto de vista son los detonadores de la violencia.

Late quaternary geology in Desaguadero river basin, San Luis, Argentina

International Nuclear Information System (INIS)

Chiesa, J.; Strasser, E.; Gomez, D.; De Miguel, T.

2007-01-01

Absolute radiocarbon datings of the sedimentary successions have come to knowledge enabling us to distinguish the Pleistocene deposits from the supra-lying Holocene ones. A palaeo-environmental evolution is proposed considering climatic fluctuations at the time, their relation with the river unloadings of the Andean glaciers and that proposed for the palaeo-lake of Salina del Bebedero. Sediments are described on the basis of a detailed field sampling, textural analysis (sieved and Bouyoucos) and laboratory geo-chemicals. Their interpretation of the geologic evolution is considered to be very important since it is the only river course on this arid-semi-arid region linked to the reduction of glaciers in the Andes. The sedimentary succession is dominated by high percentages of laminated limes and with green-yellowish to greyish-brown-reddish tones deposited in watery environments of low energy such as lacustrine basins and extended plains of flood, which is why the evolution of the deposit is characterized by the contrast of the values of insolubles (clastic sediment and carbonate) versus solubles (insoluble saline). The climatic cycles dominant and proposed for the center-east Argentine region are identified considering the influence of Andean glaciers on the river systems and the water balances in plain semi-arid environments. (author)

Detection of residual organochlorine and organophosphorus pesticides in agricultural soil in Rio Verde region of San Luis Potosi, Mexico.

Science.gov (United States)

Velasco, Antonio; Hernández, Sergio; Ramírez, Martha; Ortíz, Irmene

2014-01-01

Organochlorine pesticides were intensively used in Mexico from 1950 until their ban and restriction in 1991. However, the presence of these compounds is commonly reported in many regions of the country. The aim of the present study was to identify and quantify residual organochlorine and organophosphorus pesticides in agricultural soil in Rio Verde region, San Luis Potosi state, which has been identified as possibly polluted by pesticides. Composed samples from 24 zones covering an area of approximately 5,440 ha were analyzed. The most frequently found pesticides were p,p'-DDT followed by ,p,p'-DDE, heptachlor, endosulfan and γ-HCH whose frequency rates were 100, 91, 83 and 54%, respectively. The concentration of p,p'-DDT in the crops grown in these soils was in the following order: chili > maize > tomato > alfalfa. The results obtained in this study show that p,p'-DDT values are lower or similar to those found in other agricultural regions of Mexico. Methyl and ethyl parathion were the most frequent organophosphate pesticide detected in 100% and 62.5% of the samples with average concentrations of 25.20 and 47.48 μg kg(-1), respectively. More research is needed to establish the background levels of pesticides in agricultural soils and their potential ecological and human health effects in this region.

Miocene and Pleistocene mollusks from San Andres Island (Caribbean Sea, Colombia) and Paleogeographic considerations

International Nuclear Information System (INIS)

Diaz M, Juan Manuel; Garcia Llano, Cesar Fernando

2010-01-01

San Andres Island is the largest emerged portion of the oceanic archipelago of San Andres and Providencia, southwestern Caribbean Sea; it originated as a coralline atoll during Miocene times. The central and highest part of the island consists of a calcareous crest, the San Andres Formation, formed by Neogene lagoonal and reefal deposits. This crest is surrounded by a calcareous platform of Pleistocene age (San Luis Formation) which emerges only along the island coast, whereas its most part is submerged and covered by a Recent reef complex. Fossil material of molluscs from these two formations was collected in various sites throughout the island and taxonomically identified. In the four sites sampled in the San Andres Formation, material belonging to 19 gastropod and 37 bivalve species was obtained, most of them relatively well represented in other geologic formations of the Caribbean region that are stratigraphically situated between the upper Miocene and the middle Pliocene. Some elements occurring in this formation, such as Ostrea haitiensis, Meretrix dariena and Siphocypraea henekeni, were widely distributed in the Caribbean Miocene Province. In the San Luis Formation, material belonging to 18 gastropod and 11 bivalve species was obtained, most of them also represented in the Recent molluscan fauna of the region. The estimated age of this formation is Sangamonian, hence corresponding to similar formations occurring in Grand Cayman, Jamaica, Hispaniola, the Netherlands Antilles and other Caribbean islands, with which it also shows a great similarity in the composition of the molluscan fauna.

Association between urine fluoride and dental fluorosis as a toxicity factor in a rural community in the state of San Luis Potosi.

Science.gov (United States)

Jarquín-Yañez, Lizet; de Jesús Mejía-Saavedra, José; Molina-Frechero, Nelly; Gaona, Enrique; Rocha-Amador, Diana Olivia; López-Guzmán, Olga Dania; Bologna-Molina, Ronell

2015-01-01

The aim of this study is to investigate urine fluoride concentration as a toxicity factor in a rural community in the state of San Luis Potosi, Mexico. A sample of 111 children exposed to high concentrations of fluoride in drinking water (4.13 mg/L) was evaluated. Fluoride exposure was determined by measuring urine fluoride concentration using the potentiometric method with an ion selective electrode. The diagnosis of dental fluorosis was performed by clinical examination, and the severity of damage was determined using Dean's index and the Thylstrup-Fejerskov (TF) index. The range of exposure in the study population, evaluated through the fluoride content in urine, was 1.1 to 5.9 mg/L, with a mean of 3.14±1.09 mg/L. Dental fluorosis was present in all subjects, of which 95% had severe cases. Higher urine fluoride levels and greater degrees of severity occurred in older children. The results show that dental fluorosis was determined by the presence of fluoride exposure finding a high positive correlation between the severity of fluorosis and urine fluoride concentration and the years of exposure suggested a cumulative effect.

Muertes por violencias en Argentina: dos estudios de caso en los Municipios de Venado Tuerto y San Rafael Violence-related deaths in Argentina: two case studies in the cities of Venado Tuerto and San Rafael

Directory of Open Access Journals (Sweden)

Hugo Spinelli

2012-12-01

Full Text Available Este artículo ofrece los resultados de un estudio comparado de dos municipios: Venado Tuerto y San Rafael de la República Argentina, que presentaron tendencias diferentes en relación a las tasas de homicidios por armas de fuego. La metodología combinó dos estrategias de análisis: por un lado, entrevistas semi-estructuradas con informantes clave (funcionarios municipales y provinciales en distintas áreas de la gestión, y referentes de organizaciones no gubernamentales y, por el otro, grupos focales con actores vinculados a la atención médica, la educación y las instituciones religiosas. Los resultados sugieren una distancia muy corta entre las ciudades en las cuales las tasas han aumentado y aquellas en las que han disminuido. La diferencia más significativa es que en Venado Tuerto se encontró una mayor fragilidad en las instituciones públicas, por la falta de articulación entre las mismas. En tanto en San Rafael, los actores entrevistados atribuyen el bajo nivel de conflictividad a una red de prevención de violencias en la cual se coordinan agencias provinciales y municipales. Sin tratarse, ni Venado Tuerto, ni San Rafael, de ciudades violentas en los niveles latinoamericanos más truculentos, ambas muestran resultados diferentes que apuntan directamente a la posibilidad de juntar a las instituciones en un entramado de conversaciones, acuerdos y políticas en conjunto.This article presents the results of a comparative study of two Argentinian cities, namely Venado Tuerto and San Rafael, which revealed different trends in the rates of firearm-related homicides. The methodology combined two strategies of analysis: semi-structured interviews with key informants (municipal and provincial government agents in different areas of management, as well as members of non-governmental organizations and focus groups with actors involved in medical care, education, and religious institutions. The results suggest little difference between

Soluciones concluidas en el MERCOSUR en materia de jurisdicción internacional: Análisis de los protocolos de Buenos Aires sobre jurisdicción internacional en materia contractual y de San Luis en materia de resp. civil emergente de accidentes de tránsito

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Eduardo Tellechea Bergman

2015-10-01

Full Text Available Contenido: Precisiones.  La jurisdicción en las relaciones privadas internacionales en el MERCOSUR. Necesidad de una regulación común a todos los estados parte. Protocolo de Buenos Aires sobre jurisdicción internacional en materia contractual. Protocolo de San Luis sobre responsabilidad civil emergente de accidentes de tránsito

Geology and metallogeny of the volcanic complex of Rio Blanco Ullum. Province of San Juan. Republica Argentina

International Nuclear Information System (INIS)

Mendoza, N.; Weidmann, N.; Puigdomenech, H.; Weidmann, R.

2007-01-01

Preliminary results of a research carried out at the Complejo Rio Blanco de Ullum, San Juan. Argentina are summarized in the present paper. These studies are focused on geological and metallogenic features o f this unit. The study area is located 20 km. WNW of San Juan city with geographic coordinates of 31grades 30' South latitude and 68 grades 52' West longitude. The older rocks aotcroping in the area correspond to limestones of Ordovician San Juan Formation, the chronologic succession continues with sales and siltstones of Silurian Tambolar Formation, pelites and subgraywackes of Devonian Punta Negra Formation and finally a 1500 m thick package of piroclastics and sediments of Albarracin Formation of Tertiary age. Albarracin Formation is composed pf a Basal Member (sandstones and stilstones), a Tuffaceous Member (tuffs, tuffites and oligomictic breccia s with conglomerate interbed dings in the upper part) and a Conglomeratic Member (polimictic para conglomerates). According to piroclastics facies, relationships and spreading area of piroclastics deposits a c olapsed dome and avalanche model is proposed to be the main process for the piroclastics package outcropping in the area.Sedimentary and piroclastics rocks are intruded by five sub volcanic units as noted by Leveratto (1968) which are composed by different lithologies such as: Altered Da cite - Rhyolite, Ullum Da cite, Cerro Blanco de Zonda Andesite, Ullum Andesite and Hybrid Andesite.Detailed work on alteration assemblages and metallogenic features in the southwestern sector of the Complejo resulted in the identification of three alteration zones with characteric features of potassic, argillic and propyllitic signature. (author)

Jorge Luis Borges y Wilhem Ostwald. Notas para una alianza entre la ciencia y las humanidades

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Lothar Beyer

2011-05-01

Full Text Available Jorge Luis Borges (1899-1986 de nacionalidad argentina, fue escritor, poeta y filósofo de fama mundial. Wilhelm Ostwald (1853-1932, de nacionalidad alemana, fue uno de los fundadores de la físicoquímica.También fue filósofo, pintor y premio Nobel de Química (1909. Los dos hombres enriquecieron el diálogo entre ciencia y humanidades gracias a sus obras y sus discursos, a pesar de que nunca se conocieron personalmente.Un simposio en la ciudad de Leipzig, en cuya universidad Wilhelm Ostwald se desempeñó durante 20 años como catedrático principal de físicoquímica, realizado en octubre de 2001, tenía el título: «Jorge Luis Borges. Ciencia y filosofía». A ese simposio el autor de este artículo contribuyó con una conferencia: «Ciencias y humanidades en diálogoconstructivo» dictada en presencia de la viuda María Kodama de Borges.

Gestión espacial del conocimiento. Las vocaciones científico tecnológicas en Guanajuato y San Luis Potosí

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Benjamín Fidel Alva Fuentes

2015-01-01

Full Text Available La sociedad actual se ha caracterizado cada vez más por su rasgo global fuerte integración a nivel global; utiliza inten - sivamente el conocimiento en muchas dimensiones espaciales, en un ámbito físico, y ahora más en el virtual, desde la empresa hasta la ciudad o región. En este contexto, es importante establecer procesos de gestión que permitan su aprove - chamiento en la competitividad, sustentabilidad y calidad de vida. La vocación científico-tecnológica es un componente de la gestión espacial del conocimiento ( GEC , analiza las capacidades de generación asociadas al territorio en un proceso de integración de redes. El documento presente, tiene el propósito de precisar la GEC como concepto unificador. Para ello, se divide en tres partes: el marco conceptual y metodológico; luego, un análisis aplicado a Guanajuato y San Luis Potosí; y finalmente, en la conclusión se presenta una agenda de áreas de oportunidad para una integración de estos dos estados en una dinámica basada en el conocimiento.

Progress in SLR-GPS co-location at San Juan (Argentina) station

Science.gov (United States)

Luis, Hernan; Rojas, Alvis; Adarvez, Sonia; Quinteros, Johana; Cobos, Pablo; Aracena, Andrés; Pacheco, Ana M.; Podestá, Ricardo; Actis, Eloy V.; Li, Jinzeng; Yin, Zhiqiang; Wang, Rui; Huang, Dongping; Márquez, Raúl

2012-08-01

From February, 2006, performing a Cooperation Agreement with National Astronomical Observatories of China (NAOC) of the Chinese Academy of Sciences (CAS), Observatorio Astronómico Félix Aguilar (OAFA) of Universidad Nacional de San Juan (UNSJ) is operating a SLR System (ILRS 7406 Station). From the beginning of 2012 a GPS Aztech - Micro Z CGRS is operative at the same place, which made the SLR - GPS co - location possible. The prior objective is to reach co - location between both techniques, so the Station became of 1st order in ITRF net. For that we study and adopt an appropriate strategy to select and place Survey Control Points that ensures higher precision in determination of 3D vectors between the selected reference point s. Afterwards we perform translocation tasks of receptor and antenna checking that the GPS verifies builder standards. Then we design and compensate survey control network, by means of software of our own draught. We expect to obtain definitive local ties with precision better than 3 mm, as suggested by IERS for co - located stations. There are very few stations with co - located spatial techniques in the Southern Hemisphere, so it is of great importance to have one in Argentina for improve our participation in IERS on the new realizations of ITRF from now on.

Residential and commercial space heating and cooling with possible greenhouse operation; Baca Grande development, San Luis Valley, Colorado. Final report

Energy Technology Data Exchange (ETDEWEB)

Goering, S.W.; Garing, K.L.; Coury, G.E.; Fritzler, E.A.

1980-05-01

A feasibility study was performed to evaluate the potential of multipurpose applications of moderate-temperature geothermal waters in the vicinity of the Baca Grande community development in the San Luis Valley, Colorado. The project resource assessment, based on a thorough review of existing data, indicates that a substantial resource likely exists in the Baca Grande region capable of supporting residential and light industrial activity. Engineering designs were developed for geothermal district heating systems for space heating and domestic hot water heating for residences, including a mobile home park, an existing motel, a greenhouse complex, and other small commercial uses such as aquaculture. In addition, a thorough institutional analysis of the study area was performed to highlight factors which might pose barriers to the ultimate commercial development of the resource. Finally, an environmental evaluation of the possible impacts of the proposed action was also performed. The feasibility evaluation indicates the economics of the residential areas are dependent on the continued rate of housing construction. If essentially complete development could occur over a 30-year period, the economics are favorable as compared to existing alternatives. For the commercial area, the economics are good as compared to existing conventional energy sources. This is especially true as related to proposed greenhouse operations. The institutional and environmental analyses indicates that no significant barriers to development are apparent.

Primer registro de infestación en un reptil por larvas de Amblyomma parvitarsum (Acari: Ixodidae en Argentina

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Gabriel Natalio Castillo

2015-05-01

Full Text Available Amblyomma parvitarsum es una garrapata endémica del Altiplano Andino de Argentina, Bolivia, Chile y Perú. En la provincia de San Juan adultos de esta garrapata fueron encontrados en el Parque Nacional San Guillermo sobre Vicugna vicugna. En Argentina también existen citas de adultos de A. parvitarsum sobre bovinos, ovinos y el ñandú . El primer caso de parasitismo de larvas de A. parvitarsum en Liolaemus fue realizado en Chile. El presente trabajo menciona por primera vez para Argentina la presencia de larvas de A. parvitarsum parasitando al lagarto Liolaemus eleodori.

Relación del entrenamiento, capacitación y financiamiento con el crecimiento sostenido de pequeñas empresas del sector industrial en la ciudad de San Luis Potosí, México.

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Mario Alberto Martínez Rojas

2008-05-01

Full Text Available The research does an analysis about the sustainable growth challenge´s in relation with the independents variables of the small business in front the context of the economic globalization, the issue of the sustainable growth, the characterization statistic and the empiric´s studies, and fi nally the analysis of the smalls business of the San Luis Potosi. It was realized a statistic study with a sample comprehend with 30 companies. The most relevant discoveries is that the managers possess enough knowledge as much academic as experience, this demonstrate that those variables are a critical factor to the sustainable growth of the small business, in the other hand the fi nancing is not a determinant factor.

A multi-dimensional analysis of the upper Rio Grande-San Luis Valley social-ecological system

Science.gov (United States)

Mix, Ken

The Upper Rio Grande (URG), located in the San Luis Valley (SLV) of southern Colorado, is the primary contributor to streamflow to the Rio Grande Basin, upstream of the confluence of the Rio Conchos at Presidio, TX. The URG-SLV includes a complex irrigation-dependent agricultural social-ecological system (SES), which began development in 1852, and today generates more than 30% of the SLV revenue. The diversions of Rio Grande water for irrigation in the SLV have had a disproportionate impact on the downstream portion of the river. These diversions caused the flow to cease at Ciudad Juarez, Mexico in the late 1880s, creating international conflict. Similarly, low flows in New Mexico and Texas led to interstate conflict. Understanding changes in the URG-SLV that led to this event and the interactions among various drivers of change in the URG-SLV is a difficult task. One reason is that complex social-ecological systems are adaptive, contain feedbacks, emergent properties, cross-scale linkages, large-scale dynamics and non-linearities. Further, most analyses of SES to date have been qualitative, utilizing conceptual models to understand driver interactions. This study utilizes both qualitative and quantitative techniques to develop an innovative approach for analyzing driver interactions in the URG-SLV. Five drivers were identified for the URG-SLV social-ecological system: water (streamflow), water rights, climate, agriculture, and internal and external water policy. The drivers contained several longitudes (data aspect) relevant to the system, except water policy, for which only discreet events were present. Change point and statistical analyses were applied to the longitudes to identify quantifiable changes, to allow detection of cross-scale linkages between drivers, and presence of feedback cycles. Agricultural was identified as the driver signal. Change points for agricultural expansion defined four distinct periods: 1852--1923, 1924--1948, 1949--1978 and 1979

Cianobacterias del embalse San Roque (Córdoba, Argentina Cyanobacteria of the San Roque reservoir (Córdoba, Argentina

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Inés Claudia Daga

2011-12-01

Full Text Available Este trabajo es una contribución al conocimiento de las cianobacterias presentes en el embalse San Roque y forma parte de un estudio integral de la flora algal del mencionado embalse. Se citan 24 taxa correspondientes a los Ordenes Chroococcales (11, Nostocales (8 y Oscillatoriales (5. Synechocystis aquatilis, Gloeocapsa rupestris, Gomphosphaeria aponina, Chamaesiphon incrustans f. incrustans, Scytonema crispum, Tolypothrix distorta, Gloeotrichia pisum, Calothrix fusca, Trichodesmium lacustre, Geitlerinema splendidum, Lyngbya aestuarii y Borzia trilocularis son nuevas citas para la zona de estudio.This work is a contribution to the knowledge of the Cyanobacteria present in the San Roque reservoir and forms a part of an integral study of its algal flora. Twenty-four taxa are described and ilustrated: 11 Chroococcales, 8 Nostocales, and 5 Oscillatoriales. Synechocystis aquatilis, Gloeocapsa rupestris, Gomphosphaeria aponina, Chamaesiphon incrustans f. incrustans, Scytonema crispum, Tolypothrix distorta, Gloeotrichia pisum, Calothrix fusca, Trichodesmium lacustre, Geitlerinema splendidum, Lyngbya aestuarii and Borzia trilocularis.

“Wearing the Clothing of the Saint". Afro Characteristics in the Personality of San Baltazar through some Rites in his Cult in Argentina

OpenAIRE

Cirio, Norberto Pablo

2014-01-01

Through its history, one can see traces of African roots in the popular cult of San Baltazar in Argentina. In spite of starting as an imposed devotion by the clergy and the Spanish Crown to the slaves in the middle of 18th Century, early the later could insert their own cultural traditions, producing a sort of sui generis syncretism. Now days, those traditions are present in some religious ceremonies, especially in the devotional area. So far they consider that he is the patron saint of the j...

Association between Urine Fluoride and Dental Fluorosis as a Toxicity Factor in a Rural Community in the State of San Luis Potosi

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Lizet Jarquín-Yañez

2015-01-01

Full Text Available Objective. The aim of this study is to investigate urine fluoride concentration as a toxicity factor in a rural community in the state of San Luis Potosi, Mexico. Materials and Methods. A sample of 111 children exposed to high concentrations of fluoride in drinking water (4.13 mg/L was evaluated. Fluoride exposure was determined by measuring urine fluoride concentration using the potentiometric method with an ion selective electrode. The diagnosis of dental fluorosis was performed by clinical examination, and the severity of damage was determined using Dean’s index and the Thylstrup-Fejerskov (TF index. Results. The range of exposure in the study population, evaluated through the fluoride content in urine, was 1.1 to 5.9 mg/L, with a mean of 3.14 ± 1.09 mg/L. Dental fluorosis was present in all subjects, of which 95% had severe cases. Higher urine fluoride levels and greater degrees of severity occurred in older children. Conclusions. The results show that dental fluorosis was determined by the presence of fluoride exposure finding a high positive correlation between the severity of fluorosis and urine fluoride concentration and the years of exposure suggested a cumulative effect.

Transgresores de la legalidad: los militares y su lucha legítima por el poder en San Luis Potosí, 1869-1870

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Flor de María Salazar Mendoza

2014-09-01

Full Text Available En este artículo, se analizan las razones que motivaron a un grupo de militares encabezados por el general Francisco Antonio Aguirre a inconformarse ante el desarrollo de las elecciones para gobernador en el año de 1869 ya que los miembros de la legislatura local, no declararon gobernador constitucional electo. Ante este escenario indefinido, los militares transgredieron el orden al iniciar un pronunciamiento para externar su inconformidad. El gobierno general intervino en la vida política interna de los potosinos al ordenar a una facción del ejército regular de la federación que sofocara a los pronunciados. El movimiento político tomó otra dimensión y los sublevados redactaron un Plan político en contra del presidente Benito Juárez y sus ministros. El movimiento se mantuvo vigente al iniciar 1870 así el gobierno general envió a San Luis Potosí al general Mariano Escobedo con el propósito de restablecer a las autoridades legítimas. Luego de conseguir su objetivo, Escobedo se postuló como gobernador y ganó las elecciones en ese año. Las fuentes documentales primarias que utilicé se localizan en archivos locales y del extranjero.

Una lucha a "cielo abierto" : el caso del Frente Amplio Opositor a Minera San Xavier

OpenAIRE

Lamberti, María Julieta

2010-01-01

Se presenta un estudio de caso de un conflicto ecológico distributivo por la instalación de una empresa minera de tajo a cielo abierto desde la perspectiva de uno de los actores involucrados, el Frente Amplio Opositor a Minera San Xavier en Cerro de San Pedro, San Luis Potosí. Para dar cuenta del sentido que le otorgan los miembros del FAO a la instalación de la empresa en la comunidad se utilizan los procesos de enmarcado como herramienta de interpretación. I. La interpretación de los con...

Estrategias de enseñanza y nivel de aprendizaje en el área de comunicación en los estudiantes del cuarto de secundaria en la institución educativa "Mixto San Luis", provincia de Cañete, 2013.

OpenAIRE

Martínez Muñante, Pedro Juan.

2015-01-01

El presente estudio titulado Las estrategias de enseñanza y el nivel de aprendizaje en el área de Comunicación en los estudiantes del cuarto de secundaria en la Institución Educativa "Mixto San Luis", provincia de Cañete, 2013, es de tipo básico, y emplea el método descriptivo y diseño no experimental descriptico correlaciona!. La muestra estuvo conformada por 100 estudiantes del cuarto de secundaria. La técnica empleada para la• recolección de datos fue la encuesta y su instrumento el cuesti...

Fortalezas y debilidades del programa para la detección y el control del cáncer cervicouterino: Evaluación cualitativa en San Luis Potosí, México Strengths and weaknesses of a cervical cancer detection and control program: a qualitative evaluation in San Luis Potosi, Mexico

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Luz María Tejada-Tayabas

2012-08-01

Full Text Available Objetivo: Identificar, desde la perspectiva del personal de salud, las fortalezas y debilidades del programa para la detección y el control del cáncer cervicouterino mediante una evaluación cualitativa, en tres centros de salud de San Luis Potosí, México, entre agosto de 2008 y noviembre de 2009. Métodos: Se realizó una evaluación cualitativa. En el estudio participaron nueve prestadores de servicios, seleccionados mediante muestreo por conveniencia, bajo el criterio de participación voluntaria. Inicialmente se obtuvo información de los centros de salud para conocer las características y el contexto en que opera el programa; posteriormente, a los nueve informantes se les realizaron 18 entrevistas semiestructuradas para indagar su perspectiva. Se empleó un análisis de contenido dirigido. Resultados: Las fortalezas referidas por el personal son el carácter gratuito del programa, la disponibilidad de recursos materiales, así como algunas estrategias que facilitan la captación de mujeres y su acceso al cribado. Las principales debilidades son las limitaciones de recursos humanos y en la estructura física, la ineficiente organización de actividades, la deficiente capacidad técnica del personal y las limitadas acciones de promoción, así como las dificultades en el seguimiento de las mujeres con resultados positivos. Conclusiones: Este estudio muestra la necesidad de incrementar los recursos humanos, realizar cambios en la normatividad y reorganizar las acciones del programa en algunos centros de salud, para garantizar la calidad del servicio y satisfacer los requerimientos de las mujeres, y así favorecer la cobertura en todas sus acciones.Objective: To identify, from the perspective of the health staff, the strengths and weaknesses of the program for the detection and control of cervical cancer through a qualitative assessment implemented in three health centers in the city of San Luis Potosi, Mexico, from August 2008 to November

Liquefaction during the 1977 San Juan Province, Argentina earthquake (Ms = 7.4)

Science.gov (United States)

Youd, T.L.; Keefer, D.K.

1994-01-01

Liquefaction effects generated by the 1977 San Juan Province, Argentina, earthquake (Ms = 7.4) are described. The larger and more abundant effects were concentrated in the 60-km long band of the lowlands in the Valle del Bermejo and in an equally long band along the Rio San Juan in the Valle de Tulum. Fissures in the Valle del Bermejo were up to several hundred meters long and up to several meters wide. Sand deposits, from boils that erupted through the fissures, covered areas up to tens of square meters. Fissures generally parallelled nearby stream channels. Because the Valle del Bermejo is undeveloped, these large features caused no damage. Liquefaction in the Valle del Tulum caused important or unusual damage at several localities, including the following five sites: (1) At the Barrio Justo P. Castro, a subdivision of Caucete, liquefaction of subsurface sediments decoupled overlying, unliquefied stiff sediments, producing a form of ground failure called "ground oscillation". The associated differential ground movements pulled apart houses and pavements in extension, while shearing curbs and buckling canal linings in compression at the same locality. (2) At the Escuela Normal, in Caucete, the roof of a 30-m long single-story classroom building shifted westward relative to the foundation. That displacement fractured and tilted columns supporting the roof. The foundation was fractured at several places, leaving open cracks, as wide as 15 mm. The cumulative width of the open cracks was 48 mm, an amount roughly equivalent to the 63 mm of offset between the roof and foundation at the east end of the building. The ground and foundation beneath the building extended (or spread) laterally opening cracks and lengthening the foundation while the roof remained in place. (3) The most spectacular damage to structures at the community of San Martin was the tilting of a 6-m high water tower and the toppling of a nearby pump house into a 1-m deep crater. Similarly, a small

Assessment of groundwater contamination by gypsum dissolution in San Luis Potosí (México) using geoelectrical characterization

Science.gov (United States)

Arango-Galvan, C.; Ramos-Leal, J. A.; Yáñez-Rodríguez, M. A.; Corbo-Camargo, F.

2017-12-01

The Cerritos and Río Verde aquifers in San Luis Potosí (central México) make up a very complex aquifer system that is seriously affected by the overexploitation and the high concentration of sulphates. Currently, it is partially closed for extraction causing a substantial decrease in per capita drinking water availability affecting to more than 50,000 inhabitants in the region. Therefore, a very comprehensive study has been proposed in order to evaluate not only the groundwater contamination distribution but also to better know the aquifer configuration and its main hydrogeological characteristics as well. These studies include a detailed geological reconnaissance, hydrogeochemical analyses and a geoelectrical characterization. The main goal is to assess the aquifer geometry and to identify the gypsum horizons causing the presence of higher concentrations of sulphates in drinking water. A total of 26 audiomagnetotelluric soundings were measured and modelled along profiles following a perpendicular direction to the NW regional trending. Two-dimensional resistivity models suggest the presence of a shallow conductive layer (C1) with resistivity values ranging from 10 to 20 Ohm.m. It is related to the upper aquifer with a very low exploitation potential. A less conductive horizon (C2; 50 Ohm.m) underlying the shallow aquifer could be related to a very fractured limestone horizon forming a confined aquifer in the middle of the valley. A very resistive layer (R1) is observed underlying C1 and C2 units. This strata shows higher resistivity values (>100 Ohm.m) and could be associated with a reefal limestone identified as El Abra Formation. Finally, a conductive layer (<100 Ohm.m) observed beneath this horizon could be related to the oldest stratigraphic unit outcropping on the region, the Guaxcamá Formation, a gypsum-enriched unit, that contributes to the presence of sulphates in the upper aquifers by dissolution processes.

VITICULTURA Y POLÍTICA INTERNACIONAL: EL INTENTO DE REINCORPORAR A MENDOZA Y SAN JUAN A CHILE (1820-1835

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PABLO LACOSTE

2006-06-01

Full Text Available Entre 1830 y 1835 algunos dirigentes de Mendoza y San Juan, provincias vitivinícolas, trataron de separarse de la República Argentina y regresar a Chile, tal como en la época colonial. Durante más de dos siglos, Mendoza y San Juan fueron parte del Corregimiento de Cuyo del Reino de Chile. Esta situación cambió desde 1776 con la creación del Virreinato del Río de la Plata. Después de la Revolución de 1810, Mendoza y San Juan formaron parte de la República Argentina. Pero algunos años después de la independencia, un grupo descontento con la acción y decisiones del gobierno de Buenos Aires, inició acciones orientadas a la secesión. Este artículo investiga las razones y motivaciones socioeconómicas de este grupoBetween 1830 and 1835 some leaders of Mendoza and San Juan, wine industry oriented provinces, attempted to withdrawal from Argentina Republic, and come back to Chile such as in colonial times. During more than two centuries, Mendoza and San Juan were members of Cuyo Province in Chile's Kingdom. This situation changed since 1776 because the creation of the River Plate Viceroyalty. After Revolution of 1810, Mendoza and San Juan took part of Argentina Republic. But some years after the independence, a group discontented with de action and decision of Buenos Aires government begun the action oriented to secession. This paper explores the socioeconomic reasons and motivation of this group

Thubunaea eleodori sp. nov. (Nematoda: Physalopteridae) from Liolaemus eleodori (Sauria: Liolaemidae) from Argentina.

Science.gov (United States)

Ramallo, Geraldine; Goldberg, Stephen; Bursey, Charles; Castillo, Gabriel; Acosta, Juan Carlos

2017-01-01

Thubunaea eleodori sp. nov. is described from the stomach of Liolaemus eleodori (Sauria: Liolaemidae) from San Guillermo National Park, Province of San Juan, Argentina. T. eleodori is most similar to those species lacking spicules, T. cnemidophorus, T. fitsimonsi, T. parkeri, T. schukurovi, and T. smogorzhewskii. T. eleodori is separated from these species based on the papilla pattern. T. eleodori has 12 pedunculate papillae and 14 sessile papillae, T. smogorzhewskii lacks pedunculate papillae, T. fitsimonsi and T. parkeri lack sessile papillae, and T. cnemidophorus has14-16 pedunculate papillae and 12 sessile papillae. T. eleodori represents the first member of the genus to be reported from Argentina.

Blood lead concentrations in wild birds from a polluted mining region at Villa de La Paz, San Luis Potosi, Mexico.

Science.gov (United States)

Chapa-Vargas, Leonardo; Mejia-Saavedra, Jose J; Monzalvo-Santos, Karina; Puebla-Olivares, Fernando

2010-01-01

This investigation was undertaken to determine the concentrations of lead in bird blood samples from a mining region in central Mexico and to compare concentrations among several different feeding guilds. The study took place in the Mexican state of San Luis Potosi in a region known as "Villa de la Paz." This is one of the most intensely exploited mining regions in central Mexico and has been actively mined for over four centuries. Lead concentrations from bird blood samples taken from four polluted sites were significantly higher than those from a control, unpolluted site (F = 6.3, P birds from a highly polluted site were higher than those from a site that has intermediate pollution levels (P birds had significantly lower lead concentrations compared to granivores, frugivores-insectivores, and omnivores (F = 4.86, P = 0.004), and a large proportion of all individuals had blood lead concentrations indicative of low, sub-lethal toxic effects. Finally, in two polluted sites, remarkably small numbers of insectivore-frugivores, and granivores were trapped, and in one polluted site a large number of insectivores was trapped (X(2) = 29.9, P = 0.03), and no differences in proportions of migrants and non-migrants were found among sampling sites (X(2) = 0.6, P = 0.96). To date, it has not been determined to what extent constant exposure to these levels of pollution can influence health at the individual level, lifespan, and, therefore, population demography of birds from this region.

Climate, streamflow, and legacy effects on growth of riparian Populus angustifolia in the arid San Luis Valley, Colorado

Science.gov (United States)

Andersen, Douglas

2016-01-01

Knowledge of the factors affecting the vigor of desert riparian trees is important for their conservation and management. I used multiple regression to assess effects of streamflow and climate (12–14 years of data) or climate alone (up to 60 years of data) on radial growth of clonal narrowleaf cottonwood (Populus angustifolia), a foundation species in the arid, Closed Basin portion of the San Luis Valley, Colorado. I collected increment cores from trees (14–90 cm DBH) at four sites along each of Sand and Deadman creeks (total N = 85), including both perennial and ephemeral reaches. Analyses on trees conditions was common. Models for trees farther from the channel or over a deep water table explained 23–71% of SGI variability, and 4 of 5 contained a streamflow variable. Analyses using solely climate variables over longer time periods explained 17–85% of SGI variability, and 10 of 12 included a variable indexing summer precipitation. Three large, abrupt shifts in recent decades from wet to dry conditions (indexed by a seasonal Palmer Drought Severity Index) coincided with dramatically reduced radial growth. Each shift was presumably associated with branch dieback that produced a legacy effect apparent in many SGI series: uncharacteristically low SGI in the year following the shift. My results suggest trees in locations distant from the active channel rely on the regional shallow unconfined aquifer, summer rainfall, or both to meet water demands. The landscape-level differences in the water supplies sustaining these trees imply variable effects from shifts in winter-versus monsoon-related precipitation, and from climate change versus streamflow or groundwater management.

FORMACIÓN, CRISIS Y REORIENTACIONES DE LA VITIVINICULTURA EN MENDOZA Y SAN JUAN, 1970-2000. APORTES PARA EL ESTUDIO DEL SECTOR EN LA ARGENTINA

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Rodolfo Richard-Jorba

2006-12-01

Full Text Available Las actuales provincias de Mendoza y San Juan, localizadas en el árido centro-oeste argentino, llevan a cabo sus actividades económicas principales en grandes oasis de regadío, pequeñas porciones del territorio, en las cuales se concentra más del 95% de la población. A lo largo de su historia los productos de sus viñedos fueron dotándolas de una clara identidad hasta conformar lo que hoy conocemos como la gran Región Vitivinícola Argentina.

LA CUEVA ALIHUÉN, NUEVOS REGISTROS DE PINTURAS RUPESTRES EN LA VEGA DE MAIPÚ (SAN MARTÍN DE LOS ANDES, PATAGONIA, ARGENTINA (The Alihuén Cave, New Records of Cave Paintings in the Maipú Valley (San Martín de los Andes, Patagonia, Argentina

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Alberto Enrique Pérez

2014-06-01

Full Text Available Se presenta el resultado de las nuevas investigaciones de pinturas rupestres en la vega Maipú, San Martín de los Andes, Neuquén, Argentina; donde se destaca la presencia de motivos zoomorfos, especialmente camélidos, de escasa representación hasta la fecha en el registro zooarqueológico local. El sitio Cueva Alihuén amplía la diversidad de motivos y técnicas de las pinturas rupestres de la vega Maipú, lo que nos permite plantear aspectos tanto biogeográficos respecto a la fauna como sobre la circulación de información y movilidad. Ambos aspectos nos permiten, nuevamente, aunar ambas vertientes de la cordillera de los Andes, compartiendo, integrando y complementando cada vez más características con el resto de los sitios que componen la cuenca hidrográfica de Valdivia, cuyo sector inferior constituye nuestra área de estudio. ENGLISH: New results from research on the cave paintings of the Maipú Valley, San Martín de los Andes, Neuquén, Argentina, highlight the presence of zoomorphic motifs, especially camelids which have been underrepresented in the local zooarchaeological record. The Alihuén cave site expands the range of motifs and techniques known from the cave paintings of the Maipú Valley that allows us to raise issues regarding both biogeographic wildlife, and on the flow of information and human mobility. These aspects allow us to share and integrate the increasingly complementary features on both sides of the Andes with the rest of the sites that comprise the Valdivia River basin, whose lower section composed our study area.

Luis Alvarez, the Hydrogen Bubble Chamber, Tritium, and Dinosaurs

Science.gov (United States)

Dinosaurs Resources with Additional Information * Patents Luis Alvarez Courtesy Lawrence Berkeley National JFK Assassination, and the End of the Dinosaurs Memorial Tribute for Luis W. Alvarez The Fruitful and Luis Alvarez (1911 - 1988) Why Dinosaurs Are Extinct Berkeley Scientists Report First Evidence that

¿“Tierra de Gauchos” o “Gaucholandia”? Autenticidad en San Antonio de Areco (Argentina.

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Cecilia Pérez Winter

2016-01-01

Full Text Available En este artículo proponemos analizar cómo la autenticidad es definida por diversos sujetos que se involucran en los procesos de valorización patrimonial y turística de una ciudad. En particular, cómo esa cualidad es disputada, discursiva y materialmente, a través del tiempo. Sostenemos que el discurso, o la idea de, autenticidad puede ser implementada por diferentes sectores de una comunidad, ya sea como un forma de legitimar/deslegitimar proyectos turísticos ‑patrimoniales, o para controlar la activación de los “patrimonios/atractivos”. Proponemos como estudio de caso la ciudad de San Antonio de Areco, localizada en la provincia de Buenos Aires ‑Argentina. Allí nos interesar indagar estos temas, a partir de examinar las tensiones que emergen entre las representaciones identitarias y la lógica turística/comercial, al mercantilizar elementos significativos asociados a la activación de un tipo de tradición y de gaucho.

Entre la idealización y el pragmatismo: planes para la reconstrucción de la ciudad de San Juan, Argentina (1944/1948)

OpenAIRE

Nacif, Nora; Martinet, Marta; Espinosa, María del Pilar

2011-01-01

La ciudad de San Juan, Argentina, se ubica en una zona de alto riesgo sísmico y registró en 1944 el terremoto más significativo en su historia, pues su ocurrencia provocó una fractura a todo nivel: urbano, arquitectónico, económico, social. Para la reconstrucción se propusieron entre 1944 y 1948 siete Planes cuya revisión tiene como objetivo demostrar el proceso de transición entre la idealización teórica y el necesario pragmatismo de la realidad, a través del recorrido de las suc...

Cuando la comunidad busca hacerse oír : el conflicto de los residuos sólidos urbanos del Gran San Miguel de Tucumán (Argentina)

OpenAIRE

Colombo, Marcela

2005-01-01

El presente trabajo describe el conflicto ambiental planteado por la disposición de los residuos sólidos urbanos en San Miguel de Tucumán, capital de la Provincia de Tucumán, Argentina. Distintos actores sociales confluyeron en una autoconvocatoria ciudadana, logrando la desestimación del proyecto planteado unilateralmente por el Poder Ejecutivo Provincial. De la experiencia acumulada en este caso se puede resaltar: Que las medidas unilaterales, sumadas a la falta de información y consulta a ...

Biological Control of Tephritid Fruit Flies in Argentina: Historical Review, Current Status, and Future Trends for Developing a Parasitoid Mass-Release Program.

Science.gov (United States)

Ovruski, Sergio M; Schliserman, Pablo

2012-09-14

In Argentina there are two tephritid fruit fly species of major economic and quarantine importance: the exotic Ceratitis capitata that originated from Southeast Africa and the native Anastrepha fraterculus. In recent years, the use of fruit fly parasitoids as biocontrol agents has received renewed attention. This increasing interest has recently led to the establishment of a program for the mass rearing of five million Diachasmimorpha longicaudata parasitoids per week in the BioPlanta San Juan facility, San Juan, Argentina. The first augmentative releases of D. longicaudata in Argentina are currently occurring on commercial fig crops in rural areas of San Juan as part of an integrated fruit fly management program on an area-wide basis. In this context, research is ongoing to assess the suitability of indigenous parasitoid species for successful mass rearing on larvae of either C. capitata or A. fraterculus. The purpose of this article is to provide a historical overview of the biological control of the fruit fly in Argentina, report on the strategies currently used in Argentina, present information on native parasitoids as potential biocontrol agents, and discuss the establishment of a long-term fruit fly biological control program, including augmentative and conservation modalities, in Argentina's various fruit growing regions.

El manejo de los residuos sólidos municipales: un enfoque antropológico. El caso de San Luis Potosí, México

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Mauricio Guzmán Chávez

2012-01-01

Full Text Available El artículo presenta una revisión crítica de la literatura especializada en la gestión de residuos sólidos municipales y una reflexión sobre los aspectos políticos vinculados a dicha gestión. Ello, a partir de un estudio de caso: el tiradero Peñasco situado en la periferia de la zona metropolitana de San Luis Potosí. La reflexión se enfoca, particularmente, en las estrategias empleadas por los pepenadores (separadores de basura para defender su fuente de trabajo, esto es, en sus luchas y negociaciones para incidir en la política municipal y en las decisiones gerenciales de la empresa habilitada para administrar dicho sitio. Nuestro análisis ofrece evidencia sobre las dificultades y la insuficiencia de los enfoques propuestos desde la ingeniería ambiental para generar cambios en la gestión de residuos sólidos y muestra el papel decisivo que juegan los intereses y percepciones de los distintos actores en la definición del control territorial y la solución de la disposición final de residuos en tanto problemática social.

Elemental composition of PM2.5 in the urban environment of San Juan, Argentina.

Science.gov (United States)

Aguilera Sammaritano, Mariela; Bustos, Daniel G; Poblete, Arnobio G; Wannaz, Eduardo D

2018-02-01

This study contributes to the current knowledge about air pollution in the province of San Juan, Argentina. Sampling was carried out to measure the fine particulate matter in the atmosphere (PM 2.5 ) of the city of San Juan. PM 2.5 was collected continuously during the winter and spring seasons of 2014 and 2015, and the concentrations of 14 elements (Pb, Ca, K, Cd, Ni, Cr, Mn, V, Cu, Ti, Ba, Co, Sr, and Fe) were determined in PM 2.5 filters using the technique of X-ray fluorescence by synchrotron radiation (SR-XRF). The results revealed that PM 2.5 presented annual and seasonal variations, showing a higher concentration during the winter seasons. In addition, for the elements quantified in the filters, a multivariate analysis (Positive Matrix Factorization) was performed to identify the main sources of emission of these elements in the study area, with a series of components being obtained that corresponded to their compositions, which were assigned physical meanings. The first factor, which was the most important in contribution of the sum of the measured elements (45%), was determined mainly by the elements K, Ti, V, Mn, and Fe, which came predominantly from soil particles. The second factor contributed 30% to the measured species in PM 2.5 , with higher Ba and Zn content perhaps being related to emissions from vehicular traffic. Finally, the third factor, in which Pb, Cr, and Ca predominated, may be an indicator of industrial activity and contributed 25% of the sum of the measured elements of PM 2.5 . The results of this study provide the first PM composition database in the province, and this can now be used in the development of mitigation and prevention programs.

Geochemical features of the Cretaceous alkaline volcanics in the area of Morado hill, Jachal town, San Juan, Argentina

International Nuclear Information System (INIS)

Perez, L.

2010-01-01

This paper is about the alkaline volcanic rocks that crop out at the Morado hill located in the southern end of the Mogna ranges, which are part of the Eastern border of the pre mountain in the San Juan province, Argentina.The petrography and geochemistry study of the alkaline volcanics has allowed to classify them as tephrite basanite or basanite nephelinite, with strong alkaline chemical affinity, showing a characteristic composition of within plate geochemistry environment. The radimetric analysis, K-Ar data, has shown an average 90 ∓ 8 m.y. age for this rocks, (Cingolani et al. 1984) pointing out the Upper Cretaceous (lower section) stratigraphical position for the suite. The discussion of the results makes conspicuous the relationships of these alkaline rocks with others of the central and northwestern regions of the country that allowed to establish an alkaline petrographic province

Detección de Malpighamoeba mellifcae (Protista: Amoebozoa en Apis mellifera (Hymenoptera: Apidaede Argentina Detection of Malpighamoeba mellifcae (Protista: Amoebozoa in Apis mellifera (Hymenoptera: Apidae of Argentina

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Santiago Plischuk

2010-12-01

Full Text Available Debido a su rol como polinizador y productor de miel, la abeja Apis mellifera L. es considerado un insecto beneficioso. Si bien Argentina juega un papel de liderazgo en la producción de miel, existe un considerable vacío en el conocimiento acerca de las enfermedades de etiología protista que afectan las abejas en el país. La ameba Malpighamoeba mellificae Prell es un protista entomopatógeno que invade los túbulos de Malpighi de las abejas e interfiere con el proceso de excreción, debilitando al huésped y posiblemente facilitando la acción de otros patógenos. En esta contribución se presentan los primeros hallazgos de M. mellificae en Argentina y se brindan datos iniciales acerca de su frecuencia, intensidad de las infecciones, y co-ocurrencia con Nosema sp. Malpighamoeba mellificae se halló en dos de 36 localidades prospectadas: San Cayetano, al Sur de la provincia de Buenos Aires y San Carlos de Bariloche, en el Oeste de la provincia de Río Negro.Due to its role as a pollinator and honey producer, the honey bee Apis mellifera L. is considered a beneficial insect. Although Argentina plays a leading role in honey production, there is a considerable gap in knowledge regarding protistan diseases that affect honey bees in the country. The amoeba Malpighamoeba mellificae Prell is an entomopathogenic protist that invades the Malpighian tubules of honey bees and interferes with the excretory process, debilitating the host and possibly facilitating the action of other pathogens. In this contribution, we present the first reports of M. mellificae in Argentina, and provide some initial data about its frecuency, infection intensity, and co-occurrence with Nosema sp. Malpighamoeba mellificae was found in two out of 36 localities surveyed: San Cayetano, in southern Buenos Aires province, and San Carlos de Bariloche, in western Río Negro province.

Bases estratégicas hacia la conformación de territorios socialmente más responsables. Departamento Jáchal. Provincia de San Juan - Argentina

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Silvia Vega

2016-11-01

Full Text Available El presente trabajo se enmarca en el proyecto de investigación de la Universidad Nacional de San Juan, aprobado por el CICITCA, que tiene como propósito establecer las bases estratégicas hacia la conformación de Territorios Socialmente Responsables en el Departamento de Jáchal (San Juan, Argentina. Este departamento se considera un centro de servicio de alcance regional e internacional, al ser parte del territorio que integra la micro región productiva local, donde su emplazamiento estratégico, como parte de dos corredores —bioceánico, que conecta Brasil, Argentina y Chile, y el de integración turística: Valle Fértil, Jáchal e Iglesia—, representa hoy un desafío en el desarrollo de la región. Se procura con ello cubrir las necesidades actuales y potenciales de los proyectos públicos-privados industriales, arquitectónicos y sociales generados desde las demandas del territorio, desde el entorno productivo y desde la industria local; entendiendo que sus problemáticas y escenarios posibilitan una novedosa mirada ante el desarrollo regional. El proyecto, plantea un método prospectivo abordado con una visión integral e interdisciplinar conforme al actual paradigma de la complejidad, permitiendo enunciar indicadores y lineamientos estratégicos, contribuyendo a la formulación de proyectos innovadores que generen aportes al desarrollo económico local, preservando las condiciones de sustentabilidad; ambiental y patrimonial, y afirmándose en el marco de la responsabilidad social. 

First record of Vespula vulgaris (Hymenoptera: Vespidae) in Argentina

OpenAIRE

Masciocchi, Maité; Beggs, Jacqueline R.; Carpenter, James M.; Corley, Juan Carlos

2016-01-01

Vespula vulgaris (Linnaeus) es un véspido social nativo de la región Holártica. En este trabajo reportamos la primera detección de esta especie en Argentina. Obreras de esta avispa fueron capturadas cerca de la ciudad de San Carlos de Bariloche (Argentina) en Febrero de 2010, mientras se tomaban muestras de otra avispa invasora, Vespula germanica (Fabricius) o chaqueta amarilla, de morfología externa y hábitos similares a la anteriormente mencionada. Además, detallamos algunos caracteres de i...

Lichens as possible agents of sandstone deterioration in Jesuitic ruins of San Ignacio Miní (Misiones Province, Argentina

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Rosato, V. G.

2010-09-01

Full Text Available The ruins of San Ignacio Miní, in NE Argentina, Misiones Province, included by the UNESCO in the list of World Heritage in 1984, were built in the 18th century by the Guarani people under the supervision of the Jesuite Congregation. The ruins are located in a tropical weather zone, exposed to extreme conditions of heat and humidity affecting the rocks used in its construction. These rocks are identified as siliceous sandstones, mainly formed by rounded to subrounded clasts, with scarce angulose particles, containing 96% quartz. Weather characteristics encourage the growth of vascular plants as well as algae and mosses and other organisms that damage materials. Among these, there are 18 lichen species (belonging to 18 genera, 8 foliose, 3 fruticose and 7 crustose. The damaging action of these lichens has been observed through SEM observations and EDAX microanalysis of rock samples colonized by Caloplaca sp. and Buellia sp.

Incluidas en la lista de Patrimonio Mundial por la UNESCO, las ruinas de San Ignacio Miní, en el NE de Argentina, provincia de Misiones, fueron construidas en el siglo XVIII por pobladores guaraníes supervisados por la Compañía de Jesús. Las ruinas se encuentran en una zona de clima tropical, expuestas a condiciones extremas de calor y humedad que alteran a las rocas empleadas en su construcción. Estas rocas se identifican como areniscas silíceas, formadas por clastos redondeados a sub-redondeados, con escasas partículas angulosas, con un contenido de 96,0% cuarzo. Las características del clima favorecen el desarrollo tanto de plantas vasculares como también de musgos, algas y otros organismos capaces de dañar a los materiales. Entre éstos se incluyen 18 especies de líquenes (pertenecientes a 18 géneros, 8 foliosos, 3 fruticosos y 7 crustosos. Las observaciones con SEM y los microanálisis EDE de muestras de roca colonizadas por Caloplaca sp. y Buellia sp sugieren que estos líquenes ejercen una acci

DNA methylation changes in Mexican children exposed to arsenic from two historic mining areas in San Luis potosí.

Science.gov (United States)

Alegría-Torres, Jorge Alejandro; Carrizales-Yánez, Leticia; Díaz-Barriga, Fernando; Rosso-Camacho, Fernando; Motta, Valeria; Tarantini, Letizia; Bollati, Valentina

2016-12-01

Arsenic is a carcinogen and epimutagen that threatens the health of exposed populations worldwide. In this study, we examined the methylation status of Alu and long interspersed nucleotide elements (LINE-1) and their association with levels of urinary arsenic in 84 Mexican children between 6 and 12 years old from two historic mining areas in the State of San Luis Potosí, Mexico. Urinary arsenic levels were determined by atomic absorption spectrophotometry and DNA methylation analysis was performed in peripheral blood leukocytes by bisulfite-pyrosequencing. The geometric mean of urinary arsenic was 26.44 µg/g Cr (range 1.93-139.35). No significant differences in urinary arsenic or methylation patterns due to gender were observed. A positive correlation was found between urinary arsenic and the mean percentage of methylated cytosines in Alu sequences (Spearman correlation coefficient r = 0.532, P < 0.001), and a trend of LINE-1 hypomethylation was also observed (Spearman correlation coefficient r = -0.232, P = 0.038) after adjustment for sex and age. A linear regression model showed an association with log-normalized urinary arsenic for Alu (β = 1.05, 95% CI: 0.67; 1.43, P < 0.001) and LINE-1 (β = -0.703, 95% CI: -1.36; -0.38, P = 0.038). Despite the low-level arsenic exposure, a subtle epigenetic imbalance measured as DNA methylation was detected in the leukocytes of Mexican children living in two historic mining areas. Environ. Mol. Mutagen. 57:717-723, 2016. © 2016 Wiley Periodicals, Inc. © 2016 Wiley Periodicals, Inc.

Scinax berthae Barrio, 1962 (Anura, Hilydae. Primera cita para la provincia de Corrientes, Argentina

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Waller, Tomás

2000-04-01

Full Text Available Argentina: Corrientes, departamento San Martín, Colonia Carlos Pellegrini, inmediaciones de la laguna Iberá (28°32'28"S - 57°10'20"W, Datum: WGS 84. Altitud: 65 m snm. 16 de octubre de 1999. Dos ejemplares macho. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", Buenos Aires, Argentina (MACN 37081, 37082. Colector: Tomás Waller.

TRAZADO DE CURVAS DE POTENCIA DE UNA TURBINA EÓLICA DE EJE VERTICAL CON GEOMETRÍA VARIABLE

OpenAIRE

Mario F. Bergoglio; Carlos G. Medaglia; Javier A. Carletto; Víctor Rodrigo

2017-01-01

En este trabajo se describe el diseño y las primeras pruebas de una turbina eólica de eje vertical con geometría va riable, diseñado y construido íntegramente en la Facultad de Ingeniería y Ciencias Agropecuarias de la Universidad Nacional de San Luis - Argentina. Los ensayos de laboratorio, tendientes a conocer el comportamiento integral y determinar los valores de potencia que puede entregar el dispositivo se realizaron en un túnel de viento somet...

Two new species of Psectrascelis (Coleoptera: Tenebrionidae from western Argentina

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Gustavo E. FLORES

2007-01-01

Full Text Available Se describen dos nuevas especies del género Psectrascelis Solier (Pimeliinae: Nycteliini del oeste de Argentina, P. argentina sp. nov. a gran altitud en la Precordillera de San Juan y P. telteca sp. nov. en la llanura de Mendoza, y se las incluye en la clave mas reciente del género. Se proveen datos sobre la distribución y el hábitat, así como fotografías de los adultos y pronotos y dibujos de los genitalia masculinos.

Biological Control of Tephritid Fruit Flies in Argentina: Historical Review, Current Status, and Future Trends for Developing a Parasitoid Mass-Release Program

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Sergio M. Ovruski

2012-09-01

Full Text Available In Argentina there are two tephritid fruit fly species of major economic and quarantine importance: the exotic Ceratitis capitata that originated from Southeast Africa and the native Anastrepha fraterculus. In recent years, the use of fruit fly parasitoids as biocontrol agents has received renewed attention. This increasing interest has recently led to the establishment of a program for the mass rearing of five million Diachasmimorpha longicaudata parasitoids per week in the BioPlanta San Juan facility, San Juan, Argentina. The first augmentative releases of D. longicaudata in Argentina are currently occurring on commercial fig crops in rural areas of San Juan as part of an integrated fruit fly management program on an area-wide basis. In this context, research is ongoing to assess the suitability of indigenous parasitoid species for successful mass rearing on larvae of either C. capitata or A. fraterculus. The purpose of this article is to provide a historical overview of the biological control of the fruit fly in Argentina, report on the strategies currently used in Argentina, present information on native parasitoids as potential biocontrol agents, and discuss the establishment of a long-term fruit fly biological control program, including augmentative and conservation modalities, in Argentina’s various fruit growing regions.

Human fascioliasis in Argentina: retrospective overview, critical analysis and baseline for future research

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Cuervo Pablo

2011-06-01

Full Text Available Abstract In Argentina, human fascioliasis has never been adequately analysed, although having a physiography, climate, animal prevalences and lymnaeids similar to those of countries where the disease is endemic such as Bolivia, Peru and Chile. We performed a literature search identifying 58 reports accounting for 619 cases, involving 13 provinces, their majority (97.7% from high altitudes, in central mountainous areas and Andean valleys, concentrated in Cordoba (430 cases, Catamarca (73, San Luis (29 and Mendoza (28, the remaining provinces being rarely affected. This distribution does not fit that of animal fascioliasis. Certain aspects (higher prevalence in females in a local survey, although a trend non-significant throughout Argentina but not others (patient's age 3-95 years, mean 37.1 years resemble human endemics in Andean countries, although the lack of intensity studies and surveys in rural areas does not allow for an adequate evaluation. Human infection occurs mainly in January-April, when higher precipitation and temperatures interact with field activities during summer holidays. A second June peak may be related to Easter holidays. The main risk factor appears to be wild watercress ingestion (214 during recreational, weekend outings or holiday activities, explaining numerous family outbreaks involving 63 people and infection far away from their homes. Diagnosis mainly relied on egg finding (288, followed by serology (82, intradermal reaction (63, surgery (43, and erratic fluke observation (6. The number of fascioliasis-hydatidosis co-infected patients (14 is outstanding. Emetine appears as the drug most used (186, replaced by triclabendazole in recent years (21. Surgery reports are numerous (27.0%. A long delay in diagnosis (average almost 3.5 years and high lithiasis proportion suggest that many patients are frequently overlooked and pose a question mark about fascioliasis detection in the country. High seroprevalences found in

Human fascioliasis in Argentina: retrospective overview, critical analysis and baseline for future research

Science.gov (United States)

2011-01-01

In Argentina, human fascioliasis has never been adequately analysed, although having a physiography, climate, animal prevalences and lymnaeids similar to those of countries where the disease is endemic such as Bolivia, Peru and Chile. We performed a literature search identifying 58 reports accounting for 619 cases, involving 13 provinces, their majority (97.7%) from high altitudes, in central mountainous areas and Andean valleys, concentrated in Cordoba (430 cases), Catamarca (73), San Luis (29) and Mendoza (28), the remaining provinces being rarely affected. This distribution does not fit that of animal fascioliasis. Certain aspects (higher prevalence in females in a local survey, although a trend non-significant throughout Argentina) but not others (patient's age 3-95 years, mean 37.1 years) resemble human endemics in Andean countries, although the lack of intensity studies and surveys in rural areas does not allow for an adequate evaluation. Human infection occurs mainly in January-April, when higher precipitation and temperatures interact with field activities during summer holidays. A second June peak may be related to Easter holidays. The main risk factor appears to be wild watercress ingestion (214) during recreational, weekend outings or holiday activities, explaining numerous family outbreaks involving 63 people and infection far away from their homes. Diagnosis mainly relied on egg finding (288), followed by serology (82), intradermal reaction (63), surgery (43), and erratic fluke observation (6). The number of fascioliasis-hydatidosis co-infected patients (14) is outstanding. Emetine appears as the drug most used (186), replaced by triclabendazole in recent years (21). Surgery reports are numerous (27.0%). A long delay in diagnosis (average almost 3.5 years) and high lithiasis proportion suggest that many patients are frequently overlooked and pose a question mark about fascioliasis detection in the country. High seroprevalences found in recent random

Human fascioliasis in Argentina: retrospective overview, critical analysis and baseline for future research.

Science.gov (United States)

Mera y Sierra, Roberto; Agramunt, Veronica H; Cuervo, Pablo; Mas-Coma, Santiago

2011-06-11

In Argentina, human fascioliasis has never been adequately analysed, although having a physiography, climate, animal prevalences and lymnaeids similar to those of countries where the disease is endemic such as Bolivia, Peru and Chile. We performed a literature search identifying 58 reports accounting for 619 cases, involving 13 provinces, their majority (97.7%) from high altitudes, in central mountainous areas and Andean valleys, concentrated in Cordoba (430 cases), Catamarca (73), San Luis (29) and Mendoza (28), the remaining provinces being rarely affected. This distribution does not fit that of animal fascioliasis. Certain aspects (higher prevalence in females in a local survey, although a trend non-significant throughout Argentina) but not others (patient's age 3-95 years, mean 37.1 years) resemble human endemics in Andean countries, although the lack of intensity studies and surveys in rural areas does not allow for an adequate evaluation. Human infection occurs mainly in January-April, when higher precipitation and temperatures interact with field activities during summer holidays. A second June peak may be related to Easter holidays. The main risk factor appears to be wild watercress ingestion (214) during recreational, weekend outings or holiday activities, explaining numerous family outbreaks involving 63 people and infection far away from their homes. Diagnosis mainly relied on egg finding (288), followed by serology (82), intradermal reaction (63), surgery (43), and erratic fluke observation (6). The number of fascioliasis-hydatidosis co-infected patients (14) is outstanding. Emetine appears as the drug most used (186), replaced by triclabendazole in recent years (21). Surgery reports are numerous (27.0%). A long delay in diagnosis (average almost 3.5 years) and high lithiasis proportion suggest that many patients are frequently overlooked and pose a question mark about fascioliasis detection in the country. High seroprevalences found in recent random

Primer registro de Vespula vulgaris (Hymenoptera: Vespidae) en la Argentina

OpenAIRE

Maité MASCIOCCHI; Jacqueline R. BEGGS; James M. CARPENTER; Juan C. CORLEY

2010-01-01

Vespula vulgaris (Linnaeus) es un véspido social nativo de la región Holártica. En este trabajo reportamos la primera detección de esta especie en Argentina. Obreras de esta avispa fueron capturadas cerca de la ciudad de San Carlos de Bariloche (Argentina) en Febrero de 2010, mientras se tomaban muestras de otra avispa invasora, Vespula germanica (Fabricius) o chaqueta amarilla, de morfología externa y hábitos similares a la anteriormente mencionada. Además, detallamos algunos caracteres de i...

La Escalerilla pluton, San Luis Argentina: The orogenic and post-orogenic magmatic evolution of the famatinian cycle at Sierras de San Luis

Science.gov (United States)

Morosini, Augusto Francisco; Ortiz Suárez, Ariel Emilio; Otamendi, Juan Enrique; Pagano, Diego Sebastián; Ramos, Gabriel Alejandro

2017-01-01

Field relationships, geochemical analysis and two new absolute ages (LA-MC-ICP-MS U/Pb-zircon) allow the division of the La Escalerilla pluton (previously considered to be a single granitic body) into two different plutons: a new La Escalerilla pluton (s.s.), dated at 476.7 ± 9.6 Ma, that represents the northern portion, and the El Volcán pluton, dated at 404.5 ± 8.5 Ma, located in the southern sector. The La Escalerilla pluton is composed of three facies: (1) biotite-bearing granodiorite, (2) porphyritic biotite-bearing granite, and (3) porphyritic two micas-bearing leucogranite, being the presence of late-magmatic dykes in these facies common. The El Volcán pluton is composed of two main facies: 1) porphyritic biotite-bearing granite, and 2) two micas-bearing leucogranite, but amphibole-bearing monzodioritic and tonalititic mega-enclaves are also common, as well as some dykes of amphibole and clinopyroxene-bearing syenites. A peculiarity between the two plutons is that their most representative facies (porphyritic biotite-bearing granites) have, apart from different absolute ages, distinctive geochemical characteristics in their concentrations of trace elements; the La Escalerilla granite is comparatively poorer in Ba, Sr, Nb, La, Ce, P, and richer in Rb, Tb, Y, Tm and Yb. The El Volcán granite is notably enriched in Sr and depleted in Y, resulting in high Sr/Y ratios (12.67-39.08) compared to the La Escalerilla granite (1.11-2.41). These contrasts indicate that the separation from their sources occurred at different depths: below 25 km for the La Escalerilla, and above 30 km for the El Volcán. Moreover, the contrasts allow us to interpret a thin crust linked to an environment of pre-collisional subduction for the first case, and a thickened crust of post-collisional environment for the second, respectively.

Género, cuerpo y diversidad cultural: significaciones y prácticas de estudiantes de secundarias públicas en San Luis Potosí

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Daniel Solís Domínguez

2014-01-01

Full Text Available El texto analiza las significaciones y prácticas corporales desarrolladas por estudiantes de secundarias públicas en la ciudad de San Luis Potosí. El objetivo es examinar las construcciones de significados y vivencias en torno al cuerpo en función de dos ejes: 1 las relaciones de identidad y las percepciones sobre la diferencia cultural y 2 las relaciones de género y sexualidad. La escuela enseña y transmite esquemas de pensamiento y acción socialmente dominantes, que se expresan en el cuerpo y orientan las relaciones entre hombres y mujeres. A partir de testimonios expresa- dos por estudiantes en entrevistas colectivas, se identifica que la escuela no sólo es un ámbito de transmisión y reproducción, sino también es un espacio en donde los agentes escolares generan y socializan modelos referentes al cuerpo y sus acciones. De esta manera los/as estudiantes construyen su identidad mediante representaciones del cuerpo y de la diversidad cultural. Se concluye que el cuerpo rebasa los temas mera- mente biológicos impartidos en la escuela a la vez que no se reduce a los aspectos sexuales, sino que en él se internalizan y objetivan los principios normativos y de jerarquía, de desigualdad, de transgresión, de dife- renciación cultural y de poder al interior de un campo socia

Co-location satellite GPS and SLR geodetic techniques at the Felix Aguilar Astronomical Observatory of San Juan, Argentina

Science.gov (United States)

Podestá, R.; Pacheco, A. M.; Alvis Rojas, H.; Quinteros, J.; Podestá, F.; Albornoz, E.; Navarro, A.; Luna, M.

2018-01-01

This work shows the strategy followed for the co-location of the Satellite Laser Ranging (SLR) ILRS 7406 telescope and the antenna of the permanent Global Positioning System (GPS) station, located at the Félix Aguilar Astronomical Observatory (OAFA) in San Juan, Argentina. The accomplishment of the co-location consisted in the design, construction, measurement, adjustment and compensation of a geodesic net between the stations SLR and GPS, securing support points solidly built in the soil. The co-location allows the coordinates of the station to be obtained by combining the data of both SLR and GPS techniques, achieving a greater degree of accuracy than individually. The International Earth Rotation and Reference Systems Service (IERS) considers the co-located stations as the most valuable and important points for the maintenance of terrestrial reference systems and their connection with the celestial ones. The 3 mm precision required by the IERS has been successfully achieved.

Implementación de videoclases en YOUTUBE para el fortalecimiento y clarificación de la temática de trabajo y energía en el curso de física de grado décimo del colegio San Luis Gonzaga

OpenAIRE

García Cano, Manuel Alberto

2014-01-01

El presente trabajo se realizó con el objetivo de implementar las video-clases como una herramienta pedagógica complementaria a los procesos educativos desarrollados en el aula de clase del grado décimo de la institución San Luis Gonzaga de la ciudad de Manizales, así como su impacto en la motivación de la población estudiantil para el abordaje de las temáticas de asignaturas como la física (puntualmente trabajo y energía mecánica). La medición de la motivación se realizó mediante el uso de u...

[Geographic distribution of birds in the Sierra Madre Oriental of San Luis Potosi, Mexico: a regional analysis of conservation status].

Science.gov (United States)

Sahagún Sánchez, Francisco Javier; Navarro, Jaime Castro; Reyes Hernández, Humberto

2013-06-01

The Sierra Madre Oriental region in the mexican state of San Luis Potosi is a relevant place for bird conservation at a country level. Therefore the main goal of this study was to analyze the geographic patterns of distribution and the conservation current state of the birds, to support the needs to expand the conservation areas in the future. Data was collected from various databases of zoological museums and collections, and field sampling methods conducted from January 2009 to May 2011. Potential distributions were modeled for 284 species using GARP software and then a map was developed to determine areas with favorable environmental characteristics for the distribution of species richness. Finally, the importance of conservation areas for the potential distribution of birds in the region was evaluated. A total of 359 species were recorded of which 71.4% are permanent residents, 19% are winter migrants and 4% are summer residents. From this total, 41 species were endemic, 47 were species at risk and 149 were neotropical migrants. The largest species richness correspond to oak forests, cloud forests, and tropical moist forests located at altitudes from 100m to 1 500m. Their potential distribution was concentrated towards the center and Southeast of the study area. Only 10% of areas with a high potential conservation was included in areas of priority for bird conservation (AICA) and just 3% of all potential areas were under some governmental category of protection. However, no conservation area has a management plan currently applied and monitored. The information generated is important for the development of management proposals for birds conservation in the region.

Review of samples of water, sediment, tailings, and biota at the Little Bonanza mercury mine, San Luis Obispo County, California

Science.gov (United States)

Rytuba, James J.; Hothem, Roger L.; Goldstein, Daniel N.; Brussee, Brianne E.; May, Jason T.

2011-01-01

Background and Objectives The Little Bonanza mercury (Hg) mine, located in San Luis Obispo County, California, is a relatively small mine with, a historical total Hg production of about 1,000 flasks. The mine workings and tailings are located in the headwaters of the previously unnamed west fork of Las Tablas Creek (WF Las Tablas Creek), which flows into the Nacimiento Reservoir. Wasterock and tailings eroded from the Little Bonanza Hg Mine have contributed Hg-enriched mine wastes to the headwaters of WF Las Tablas Creek. The mine is located on Federal land managed by the U.S. Bureau of Land Management (BLM), which requested that the U.S. Geological Survey (USGS) measure and characterize Hg and other geochemical constituents in tailings, sediment, water, and biota at and downstream from the minesite. This report is in response that request, from the lead agency which is mandated to conduct a Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) - Removal Site Investigation (RSI). The RSI applies to removal of Hg-contaminated mine waste from the Little Bonanza minesite as a means of reducing Hg transport to WF Las Tablas Creek. This report summarizes data obtained from field sampling of mine tailings, wasterock, sediment, water, and biota at the Little Bonanza Mine that was completed on April 6, 2010. Conditions during sampling were dry and no rain had occurred in the watershed for several weeks. Our results permit a preliminary assessment of the mining sources of Hg and associated chemical constituents that could produce elevated levels of monomethyl mercury (MMeHg) in WF Las Tablas Creek and in biota.

El yo en crisis: embarazo adolescente

OpenAIRE

Herrera, Raquel; Blanda, Elizabeth; García, Silvina

2009-01-01

El siguiente trabajo, cuyo objetivo es analizar las funciones yoicas de un grupo de adolescentes embarazadas, surge a partir de la Tesis de Licenciatura en Psicología “Vicisitudes del Yo en la adolescente embarazada. Análisis de su funcionamiento”, de la Universidad Nacional de San Luis, Argentina. Los cambios producidos en la adolescencia son tan continuos que llevan a pensar que un yo sometido a una permanente crisis debe adoptar características espec íficas como instancia mediadora y organ...

Using artificial soil sediment mixtures for calibrating fingerprinting techniques at catchment scale

International Nuclear Information System (INIS)

Torres Astorga, Romina; Martin, Osvaldo A.; Velasco, Ricardo Hugo; Santos-Villalobos, Sergio de los; Mabit, Lionel; Dercon, Gerd

2016-01-01

Soil erosion and related sediment transportation and deposition are key environmental problems in Central Argentina. Certain land use practices, such as intensive grazing, are considered particularly harmful in causing erosion and sediment mobilization. In our studied catchment, Sub Catchment Estancia Grande (630 hectares), 23 km north east from San Luis, characterized by erosive loess soils, we tested sediment source fingerprinting techniques to identify critical hot spots of land degradation, based on the concentration of 43 elements determined by Energy Dispersive X Ray Fluorescence (EDXRF).

Monitoreo de la calidad de datos GPS continuo: la estacion UNSJ (San Juan, Argentina

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Alfredo Herrada

2010-06-01

Full Text Available Como parte de la red de referencia de operación continua de Argentina, la estación GPS (Global Positioning System denominada UNSJ (Universidad Nacional de San Juan fue establecida en la ciudad de San Juan el 6 de Marzo de 2007. Los datos registrados de UNSJ son ampliamente utilizados en aplicaciones catastrales, y sirven como base para la definición de los marcos de referencia geodésicos nacional y regional. Como una componente fundamental de la infraestructura geodésica, resulta conveniente un eficiente control de calidad de los datos crudos y el monitoreo de la estabilidad de una estación GPS de referencia. En este trabajo se presentan los resultados del control de calidad de las observaciones UNSJ luego de dos anos de operación. Para contro l ar y caracterizar el desempeno del receptor GPS y además el medio ambiente de la estación, se eligieron cuatro índices. Ellos son el número de observaciones, multicamino en L1, multicamino en L2 y ocurrencia de saltos de ciclos. También, se evaluó la estabilidad de largo término de la estación UNSJ a través del análisis de las series temporales de las coordenadas semanales provistas por los centros de cálculo SIRGAS (Sistema de Referencia Geocéntrico para las Américas. Completa este estudio el análisis de las coordenadas calculadas por distintos servicios de procesamiento disponibles en Internet. Nuestros resultados indican que durante el período analizado, el funcionamiento de la estación UNSJ fue satisfactorio, produciendo índices de calidad que son aceptables para estándares internacionales.As a part of the Argentine continuously operating reference station network, a GPS (Global Positioning System station named UNSJ (Universidad Nacional de San Juan was established in San Juan city on 6th March 2007. The recorded data of UNSJ are widely applied to cadastral surveys and serve as the basis for defining national and regional geodetic reference frames. As a key component of the

Application of seismic refraction tomography for tunnel design in Santa Clara Mountain, San Juan, Argentina Application of seismic refraction tomography for tunnel design in Santa Clara Mountain, San Juan, Argentina

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Imhof Armando Luis

2011-12-01

Full Text Available

A geophysical survey involving seismic refraction tomography (SRT for mapping 'P' waves was carried out in Sierra Santa Clara, San Juan Province, Argentina in July 2009. The purpose of the geophysical survey was to determine the degree of fracturing and the rigidity of the rock mass through which it is planned to build a 290 m long road tunnel traversing the mountain almost perpendicular to the axis thereof, at around 100 m depth from the summit.

Several difficulties arose from the operational point of view which made it almost impossible to conduct fieldwork in normal circumstances. Firstly, the topography had almost 45° slopes and 100 m research depths which would have involved having had to use explosives to generate seismic waves reaching sensors which had sufficient signal-to-noise ratio for distinguishing them. Legal restrictions regarding the use of explosives on the one hand and insufficient power when using hammer blows on the other made it necessary to design and build a gas-powered gun to achieve the minimum energy (2 kJ required for detecting seismic signals.

Secondly, using conventional interpretation methods involving layered models was inoperable in such geological structures; seismic tomography methods were thus used which make use of the velocity gradient concept (both lateral and in-depth. This allowed mapping subsurface velocity variations in the form of velocity contour lines.

The methodology used with the new seismic waves' source generator, as well as SRT application in this type of geological structure, demonstrated that satisfactory results could be obtained for this kind of geophysical study for geotechnical purposes.

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.

“Vistiendo las ropas del santo”: Atributos afro en la personalidad de san Baltasar a través de algunos cargos devocionales en su culto en la Argentina

OpenAIRE

Norberto Pablo Cirio

2003-01-01

Through its history, one can see traces of African roots in the popular cult of San Baltazar in Argentina. In spite of starting as an imposed devotion by the clergy and the Spanish Crown to the slaves in the middle of 18th Century, early the later could insert their own cultural traditions, producing a sort of sui generis syncretism.Now days, those traditions are present in some religious ceremonies, especially in the devotional area. So far they consider that he is the patron saint of the jo...

Primer registro de Vespula vulgaris (Hymenoptera: Vespidae en la Argentina

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Maité MASCIOCCHI

2010-01-01

Full Text Available Vespula vulgaris (Linnaeus es un véspido social nativo de la región Holártica. En este trabajo reportamos la primera detección de esta especie en Argentina. Obreras de esta avispa fueron capturadas cerca de la ciudad de San Carlos de Bariloche (Argentina en Febrero de 2010, mientras se tomaban muestras de otra avispa invasora, Vespula germanica (Fabricius o chaqueta amarilla, de morfología externa y hábitos similares a la anteriormente mencionada. Además, detallamos algunos caracteres de identificación y características biológicas.

The Tribe Anisoscelini (Hemiptera: Heteroptera, Coreidae) in Argentina.

Science.gov (United States)

Coscarón, María Del Carmen; Pall, José Luis

2015-10-23

Eight genera and 21 species of the tribe Anisoscelini (Coreidae, Coreinae) are recorded in Argentina: Anisoscelis foliaceus (Fabricius); Coribergia declivicollis (Berg); Dalmatomammurius vandoesburgi (Brailovsky); Holymenia hystrio (Fabricius); Leptoglossus chilensis (Spinola); L. cinctus (Herrich-Schaeffer); L. concolor Walker; L. crassicornis (Dallas); L. dentatus Berg; L. fasciatus (Westwood); L. gonagra (Fabricius); L. impictus (Stål); L. ingens (Mayr); L. neovexillatus Allen; L. quadricollis (Westwood); L. stigma (Herbst); L. vexillatus (Stål); L. zonatus (Dallas); Phthia lunata (Fabricius); Phthiacnemia picta (Drury) and Ugnius kermesinus (Linnaeus). A key to genera belonging to the tribe is provided. L. stigma is recorded for the first time in Argentina with new locality records for La Rioja, Salta and San Juan.

La soledad del humor gráfico: Acerca de Bellas Artes de Rep

OpenAIRE

Petris, José Luis

2005-01-01

Fil: Petris, José Luis. Universidad de Buenos Aires. Facultad de Ciencias Sociales; Argentina Fil: Petris, Jose Luis. Universidad Nacional de las Artes. Área Transdepartamental de Crítica de Artes; Argentina Fil: Steimberg, Oscar. Universidad Nacional de las Artes. Área Transdepartamental de Crítica de Artes; Argentina Fil: Steimberg, Oscar. Universidad de Buenos Aires. Facultad de Ciencias Sociales; Argentina Fil: Traversa, Oscar. Universidad de Buenos Aires. Facultad de Ciencias...

Violencia en la escuela: ¿un problema y un desafío para la educación?

OpenAIRE

Gabriela Luciano; Leticia Marín; María Elena Yuli

2008-01-01

El presente trabajo da cuenta de los resultados obtenidos en una investigación sobre violencia escolar realizada en escuelas de la ciudad de San Luis (Argentina) con niños de 10 a 15 años. Sobre la base del análisis de los datos, se reflexiona acerca de la intensidad que este fenómeno cobra en el ámbito educativo, al mismo tiempo que se busca profundizar principalmente en procesos de intimidación entre pares (bullying). El enfoque metodológico utilizado fue cuantitativo- exten-sivo en la etap...

Distribution and reproductive biology of the Electric ray Discopyge tschudii Heckel, 1846 in San Matías Gulf, Northern Patagonia, Argentina

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Marilú Estalles

2011-01-01

Full Text Available The Electric ray Discopyge tschudii is distributed in the Southwest Atlantic from southern Brazil to southern Argentina and in the Southeast Pacific from Peru to southern Chile. The main threat to this species is fishing. Discopyge tschudii is noncommercial and individuals caught are discarded on board. The present study analyzes the distribution and the morphological and reproductive characteristics of this ray in San Matías Gulf (SMG, Argentina. A total of 1087 individuals were analyzed. The species presented an aggregate distribution, with the main concentrations in the northern and eastern areas of SMG, at depths below 100 m. Males ranged from 9 to 43 cm and females from 11 to 38 cm. The species presented sexual dimorphism. Males were larger and heavier than females and also matured at larger sizes. Size at 50% of maturity was estimated at 30 cm for males and 21 cm for females. A total of 199 embryos were sampled and the proportion of sexes showed no significant differences from the expected 1:1. The number of embryos per female varied from 1 to 12. The most frequent values were 2 and 5. Length at birth was estimated at 82.17 ± 3.87 mm. Based on our findings, we hypothesize that the electric ray D. tschudii completes its reproductive cycle in SMG.La raya eléctrica Discopyge tschudii se distribuye, en el Atlántico Sudoccidental, desde el sur de Brasil hasta el sur de Argentina y en el Pacifico Sudoriental desde Perú al sur de Chile. La principal amenaza para la especie es la pesca. Es una especie sin valor comercial y debido a esto los ejemplares capturados por las embarcaciones pesqueras son descartados a bordo. En el presente estudio se analizan la distribución espacial y las características morfológicas y reproductivas de la especie en el Golfo San Matías (GSM, Argentina. Un total de 1087 ejemplares fueron analizados. La especie presentó una distribución agregada, encontrándose las principales concentraciones en el sector norte

Modeling of Dust Levels Associated with Potential Utility-Scale Solar Development in the San Luis Valley-Taos Plateau Study Area

Energy Technology Data Exchange (ETDEWEB)

Chang, Y. -S. [Argonne National Lab. (ANL), Argonne, IL (United States); Kotamarthi, R. [Argonne National Lab. (ANL), Argonne, IL (United States); Hartmann, H. M. [Argonne National Lab. (ANL), Argonne, IL (United States); Patton, T. [Argonne National Lab. (ANL), Argonne, IL (United States); Finster, M. [Argonne National Lab. (ANL), Argonne, IL (United States)

2016-07-01

The San Luis Valley (SLV)–Taos Plateau study area in south-central Colorado and north-central New Mexico is a large alpine valley surrounded by mountains with an area of approximately 6,263,000 acres (25,345 km²) (Figure ES.1-1). This area receives ample sunshine throughout the year, making it an ideal location for solar energy generation, and there are currently five photovoltaic facilities operating on private lands in the SLV, ranging in capacity from 1 to 30 megawatt (MW). In 2012 the Bureau of Land Management (BLM) launched its Solar Energy Program, which included the identification of four solar energy zones (SEZs) in the SLV totaling 16,308 acres (66 km²), as well as over 50,000 (202 km²) acres of other BLM-administered lands potentially available for application for solar development. The SEZ areas, named Antonito Southeast, De Tilla Gulch, Fourmile East, and Los Mogotes East, were defined by the BLM as areas well-suited for utility-scale (i.e., larger than 20 MW) production of solar energy where solar energy development would be prioritized (BLM 2012). Nonetheless, it was recognized that solar development in the SEZs would result in some unavoidable adverse impacts, and so the BLM initiated a solar regional mitigation strategy (SRMS) study for three of the SEZs (BLM and Argonne 2016). The SRMS is designed to identify residual impacts of solar development in the SEZs (that is, those that cannot be avoided or minimized onsite), identify those residual impacts that warrant compensatory mitigation when considering the regional status and trends of the resources, identify appropriate regional compensatory mitigation locations and actions to address those residual impacts, and recommend appropriate fees to implement those compensatory mitigation measures.

Papers Selected for Presentation at the International Symposium on Remote Sensing of Environment (16th) Held at Buenos Aires, Argentina on 2-9 June 1982. Volume 2.

Science.gov (United States)

1982-06-01

ARGENTINA Oscar Dominguez and Stella Carballo .............. 355 STUDIES ON SOME URBAN PROBLEMS USING AIRBORNE REMOTE SENSORS IN SANTIAGO, CHILE ...SAN JUAN ARGENTINA) (1) Silvia Lendaro de Gianni (2,3) Enrique Uliarte (I) Centro Regional de Agua Subterrgnea (2) Universidad Nacional de San Juan act...Hidrogeol6gico para refuerzo do la provisi6n de agua " a Puerto Deseado. In4dito. - Pezzuchi, Hugo Daniel (1978) "studio Geol6gico de la zona de Lstancia Dos

Desarrollo poblacional de Diaspidiotus perniciosus (Hemiptera: Diaspididae en cultivos de manzano de San Carlos, Mendoza, Argentina

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Guillermo P. LOPEZ GARCIA

2011-01-01

Full Text Available Se estudió la bionomía de Diaspidiotus perniciosus Comstock (“escama de San José”, en manzanos de la variedad “Red delicious” de San Carlos, Mendoza, Argentina, durante los ciclos productivos 2007-2008 y 2008-2009. Se determinó el número de generaciones anuales y se estudiaron las fluctuaciones poblacionales asociadas a la integral térmica para la especie en esta región. D. perniciosus presenta dos generaciones superpuestas al ciclo del cultivo, mientras que las ninfas (N1 y N2 de la tercera generación se desarrollan solamente hasta el final de la temporada estival y pasan al estado de quiescencia, en el que permanecen durante el invierno. El desarrollo de D. perniciosus en esta zona coincide con el de esta especie en la zona frutícola del centro de Chile en cuanto al número de generaciones y al periodo de quiescencia invernal. La población quiescente en Chile está integrada predominantemente por ninfas del primer estadio (N1, mientras que en San Carlos, Mendoza, la población quiescente está integrada principalmente por ninfas del segundo estadio (N2. La similitudes entre ambas poblaciones se deben, probablemente, a las coincidencias en latitud, clima y especie hospedera. El impacto económico de D. perniciosus en la zona de estudio tiene mayor relevancia durante los meses de diciembre y enero, cuando se observa una alta incidencia de daños en los frutos y las hojas; este es el momento decisivo para implementar medidas de control fitosanitario. Estas deberán aplicarse en función de los máximos poblacionales de N1 que se producen con 600-650 Grados-Día (oD en diciembre y con 1.170-1.270oD en enero. En las temporadas en las que la densidad poblacional de la plaga es especialmente alta, podrían incorporarse medidas adicionales de control con 1.800-2.000oD durante el mes de abril. Los resultados de estos estudios representan una herramienta predictiva, que permitirá elaborar estrategias para el control de poblaciones de

LOD First Estimates In 7406 SLR San Juan Argentina Station

Science.gov (United States)

Pacheco, A.; Podestá, R.; Yin, Z.; Adarvez, S.; Liu, W.; Zhao, L.; Alvis Rojas, H.; Actis, E.; Quinteros, J.; Alacoria, J.

2015-10-01

In this paper we show results derived from satellite observations at the San Juan SLR station of Felix Aguilar Astronomical Observatory (OAFA). The Satellite Laser Ranging (SLR) telescope was installed in early 2006, in accordance with an international cooperation agreement between the San Juan National University (UNSJ) and the Chinese Academy of Sciences (CAS). The SLR has been in successful operation since 2011 using NAOC SLR software for the data processing. This program was designed to calculate satellite orbits and station coordinates, however it was used in this work for the determination of LOD (Length Of Day) time series and Earth Rotation speed.

Stratigraphy, geochronology, and paleoenvironments of Miocene - Pliocene boundary of San Fernando, Belén (Catamarca, northwest of Argentina)

Science.gov (United States)

Bonini, Ricardo A.; Georgieff, Sergio M.; Candela, Adriana M.

2017-11-01

The Santa María-Hualfín Basin was proposed as a regional synchronous lithostratigraphic depocenter in the geological province of Northwestern Pampean Ranges, Northwestern Argentina. However, new 40Ar-39Ar dating indicates that deposits toward the east, in Santa María Valley (Santa María Department), are younger than the western depocenter in San Fernando (Belén Department). Therefore, it would be more appropriate to study these valleys as separate basins, each one with its own tecto-sedimentary features. The east basin, named in this paper Villavil-Quillay, constitutes an elongated independent basin that developed along the front of the eastern Puna bordering with Papachacra and Durazno Ranges. This basin is composed of more than 3000 m of mudstone, sandstone, conglomerates, volcaniclastic and pyroclastic deposits. Villavil-Quillay basin develops onto a peneplain of Precambrian and lower Cambrian rocks, most of which are metamorphic and granites rocks. The sedimentary fill consists of Cretaceous? and Cenozoic continental deposits. The Cenozoic record is composed of a) the Santa María Group (Miocene-Pliocene), formed by Las Arcas, Chiquimil, Andalhuala and Corral Quemado Formations, and b) the Punaschotter unit (Puna's Gravels in German, Pleistocene). This study involves the Andalhuala, Corral Quemado and Punaschotter deposits cropping out in San Fernando area. The set of identified facies assemblage corresponding to the Andalhuala Formation shows a vertical variation of fluvial sub-environments, varying from permanent sandy braided rivers to gravel rivers and aeolian dunes culminating in an alluvial dry cycle. While facies assemblages of the Corral Quemado Formation allow inferring the development of ephemeral water bodies from secondary channels on the floodplain, the Punaschotter conglomerates indicate the development of gravel channels and bars. Three samples of tuffs interbedded in the sedimentary levels of Andalhuala Formation were dated indicating that

Succession of carrion fauna in the arid region of San Juan Province, Argentina and its forensic relevance.

Science.gov (United States)

Aballay, F H; Murua, A F; Acosta, J C; Centeno, N D

2012-02-01

The succession of carrion fauna and the decomposition stages were studied in the arid environment of San Juan Province, Argentina (31°32'34.7″ S; 68°34'39.4″ W). Two pig carcasses (Sus scrofa) were placed in wire mesh cages, 100 m apart from each other. Each carcass was surrounded by pitfall traps, and a modified Malaise trap was placed above. Daily samplings were carried out to collect the insects present in the carcasses and the traps, and body and environmental temperature were measured. The main colonizer species was Chrysomya albiceps (Wiedemann) and its larvae were dominant over other Diptera. The first adult blowflies emerged at 8.9 days. The time to reach the remains stage was 8 days shorter than for other South American sites. We recorded the early arrival of adult Dermestes maculates De Geer and Dermestes ater De Geer 2 days after the beginning of the assay, and larvae of these species were recorded 4 days after. We determined a 1.5-day error in the postmortem interval estimation using the temperatures measured in the assay and those recorded by the nearest meteorological station.

Chemical quality and oxidative stability of extra virgin olive oils from San Juan province (Argentina).

Science.gov (United States)

Ceci, Liliana N; Mattar, Susana B; Carelli, Amalia A

2017-10-01

This study provides information about the chemical quality (quality indices, fatty acid profile, total polyphenols (PPs), tocopherols and pigments) and oxidative stability index (OSI) of virgin olive oils of Arbequina, Changlot Real and Coratina cultivars (San Juan province, Argentina). The influence of the cultivar and the effect of earlier harvest dates on the yields (OY), quality and OSI of the oils were also evaluated. All the oils were classified as extra virgin. The OY (L/100kg) averaged: Arbequina=13.2, Changlot Real=21.3, Coratina=18.3. The oleic acid (O) percentage, oleic to linoleic plus linolenic ratio [O/(L+Ln)], PPs and OSI were highly dependent on cultivar (Arbequina

Conocimiento, uso y valor cultural de seis presas del jaguar (Panthera onca y su relación con éste, en San Nicolás de los Montes, San Luis Potosí, Mexico Knowledge, use and cultural value of six prey of jaguar (Panthera onca and their relationship with this species in San Nicolás de los Montes, San Luis Potosí, Mexico

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Dulce M. Ávila-Nájera

2011-09-01

. According to villager´s perception, the more abundant species were pecari, coati and armadillo. Wildlife use for food was the most important since 82% of the interviewed people have consumed some species. The highest value of Cultural Importance was for white tailed deer (27.17. Jaguars in the ejido are considered harmful animals since they prey on livestock. Rural people and jaguars benefit from same wildlife species. The present study is the framework to develop future projects focused on managing and conserving natural resources that exist in the ejido San Nicolás de los Montes, San Luis Potosí.

Ten years of SLR production in Argentina

Science.gov (United States)

Pacheco, A.; Podestá, R.; Yin, Z.; Liu, W.; Actis, E.; Adarvez, S.; Quinteros, J.; Podestá, F.

2017-07-01

SLR technique is a proved astro-geodetic art with a significant power to contribute to Earth and Space Sciences. Therefore, scientific applications of SLR System are able to perform multiple tasks in the fields of Astrometry, Geodesy and Geophysics. The results we show here were obtained from satellite observations made at SLR 7406 Station of Observatorio Astronómico Félix Aguilar (OAFA) in San Juan, Argentina. The telescope was installed early on 2006, in concordance with an International Cooperation Agreement between Universidad Nacional de San Juan, Argentina and Chinese Academy of Sciences. In this abstract we show the current research being done with ILRS 7406 station: Length of day (LOD) and Angular velocity of Earth Rotation, calculated weekly; Pole Motion. ILRS7406 is daily surveying Pole coordinates x and y; Tracking SLR to GNSS constellations. SLR System contributes to the adjustment and validation of satellite GALILEO, GPS, GLONASS, and BEIDOU orbits. Our station is nowadays member of the new ITRF 2014 frame, and these past years has been one of the 3 highest producing SLR Stations on the ILRS net, composed of about 40 stations distributed all around the world. The obtained results during this first 10 years of experience are useful to enhance the traditional collaboration between OAFA and international services such as ILRS, IERS and NASA.

PRELIMINARY PALEOMAGNETIC RESULTS FROM OUTFLOW EOCENE-OLIGOCENE ASH FLOW TUFFS FROM THE WESTERN MARGIN OF THE SAN LUIS BASIN: IMPLICATION FOR THE KINEMATIC EVOLUTION OF THE RIO GRANDE RIFT

Science.gov (United States)

Mason, S. N.; Geissman, J. W.; Sussman, A. J.

2009-12-01

In the Rio Grande rift (RGR), a late Cenozoic continental rift from central Colorado to southern New Mexico, hanging wall margins typically contain en echelon normal fault systems with intervening areas of typically complex structure, called relay zones. Relay zones transfer displacement through complex strain patterns and eventual linkage of faults and hold clues as to how fault zones initiate and grow. The western margin of the RGR at the latitude of the San Luis basin (SLB) exposes laterally continuous Eocene-Oligocene volcanic rocks, well-correlated by 40Ar/39Ar data, and well-preserved rift structures. Ash flow tuffs are usually excellent recorders of the instantaneous geomagnetic field and five ash flow tuffs (ca. 32.3 to 27.3 Ma; including the Saguache Creek, La Jara Canyon, Masonic Park, Fish Canyon, and Carpenter Ridge tuffs) have been sampled in spatial detail along west to east transects of the eastern San Juan volcanic field to the westernmost margin of the RGR at the SLB. Data obtained from our sampling approach will yield a comprehensive definition of relative vertical-axis rotations across the area and will be used to assess the timing of RGR fault linkages. Preliminary paleomagnetic data from the Masonic Park tuff (ca. 28.2 Ma) suggest up to ~17° clockwise rotation between sample locations on the Colorado Plateau and locations to the east, nearest the western margin of the RGR. Preliminary data from the Fish Canyon tuff (ca. 27.8 Ma) show a ~12° clockwise rotation. The relative clockwise vertical-axis rotation of sampling sites in both ash flow tuffs nearest the RGR margin suggests that relay zone development with attending vertical-axis rotation played an important role in the opening of the northern RGR. Our data set is not sufficiently robust at present to test the hypothesis that rotation was taking place concurrently with eruption of these large-volume ash flow tuffs in the early Oligocene, but it is a possibility and if so, the RGR at the

Detección molecular y análisis filogenético de Hepatozoon canis (Eucoccidiorida: Haemogregarinidae en perros clínicamente sanos de Bahía Blanca (Buenos Aires

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CICUTTIN GL

2017-06-01

Full Text Available Las enfermedades caninas causadas por protozoarios y transmitidas por garrapatas representan un importante problema en medicina veterinaria. El objetivo del estudio fue detectar molecularmente Hepatozoon spp., Babesia spp. y Theileria spp. en perros clínicamente sanos de distintas regiones de Argentina y analizar la diversidad genética de los hallazgos obtenidos. Se analizaron 163 muestras de ADN de sangre de perros (40 de Ciudad Autónoma de Buenos Aires; 33 de Bahía Blanca, Buenos Aires; 15 de Castelli, Chaco; 27 de Salsipuedes, Córdoba; 40 de Merlo, San Luis; y 8 de San Miguel, Corrientes. Mediante una PCR que amplifica un fragmento variable (460-540 pb del gen ARNr 18S incluyendo la región V4 de los géneros Hepatozoon, Babesia y Theileria, el 12,1 % (4/33 de los perros de Bahía Blanca (Buenos Aires resultaron positivos. Las secuencias obtenidas se identificaron como Hepatozoon canis y resultaron filogenéticamente similares a hallazgos en Sudamérica y en el resto del mundo. El estudio de H. canis en Argentina mediante técnicas moleculares de diagnóstico junto con el análisis filogenético resulta de suma importancia para conocer la situación de este patógeno en el país. SUMMARY. Molecular detection and phylogenetic analysis of Hepatozoon canis (Eucoccidiorida: Haemogregarinidae infecting healthy dogs from Bahia Blanca (Buenos Aires. Tick-borne protozoan canine diseases represent a major problem in veterinary medicine. The aim of the study was to detect molecularly Hepatozoon spp., Babesia spp. and Theileria spp. in clinically healthy dogs from different regions of Argentina and to analyze the genetic diversity of the findings. DNAs extracted from 163 blood samples from dogs (40 from Buenos Aires city; 33 from Bahia Blanca, Buenos Aires; 15 from Castelli, Chaco; 27 from Salsipuedes, Córdoba; 40 from Merlo, San Luis; and 8 of San Miguel, Corrientes were studied by PCR amplifying a variable fragment (460-540 bp of the 18S r

El neopaleozoico de la Sierra de Castaño (Cordillera Frontal andina, San Juan, Argentina: Reconstrucción tectónica y paleoambiental The neopaleozoic of the Sierra de Castaño (Andean Cordillera Frontal, San Juan, Argentina: Tectonic and paleoenviromental reconstruction

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Pedro Busquets

2013-01-01

ón andina. El más antiguo tuvo lugar próximo al límite Carbonífero-Pérmico, o durante el Pérmico más temprano. El segundo evento de deformación ocurrió hacia fines del Pérmico temprano y se correlaciona con la Fase Tectónica San Rafael, la que señala el inicio del importante volcanismo permotriásico (Grupo Choiyoi extensamente desarrollado a lo largo de la región andina.This paper addresses the stratigraphic analysis of the Late Paleozoic sequence outcroping in the Sierra de Castaño area (Cordillera Frontal, San Juan Province, Argentina. In this region three major stratigraphic units have been recognized. The lower one corresponds to the Cerro Agua Negra Formation (Late Carboniferous-Early Permian? composed of sandstones and mudstones, mainly deposited in shallow marine environments. The San Ignacio Formation (Early Permian covers unconformably the Cerro Agua Negra Formation and it is formed by conglomerates, breccias, sandstones, mudstones, stromatolitic limestones, volcanic and pyroclastic rocks. Three facies associations were recognized in the San Ignacio Formation. The lower (AFa is composed of breccias, conglomerates and lithic sandstones which were very probably deposited in alluvial and fluvial (braided systems that filled the irregular topography carved into the Cerro Agua Negra Formation. The facies association AFb, formed by conglomerates, sandstones and mudstones, characteristically develops metric-scale finning-upward cycles probably formed in high-sinuosity fluvial systems. Regarding the facies association AFc comprises stromatolitic limestones, mudstones, volcanics and pyroclastic rocks which are interpreted as deposited in shallow water bodies under recurrent volcanic activity. The San Ignacio Formation allows characterizing the transition from the prevolcanic sequences belonging to the Cerro Agua Negra Formation to the large volcanic activity represented in the Choiyoi Group (Middle Permian-Early Triassic. Moreover the analyzed sequence

The Andean Swallow (Orochelidon andecola) in Argentina

OpenAIRE

Mazar Barnett, Juan; Pugnali, Germán D.; Pearman Morrison, Mark; Bodrati, Alejandro; Moschione, Flavio; Clark, Ricardo; Roesler, Carlos Ignacio; Monteleone, Diego; Casañas, Hernán; Burgos Gallardo, Freddy; Segovia, José; Pagano, Luis; Povedano, Hernán; Areta, Juan Ignacio

2016-01-01

During ornithological studies in the provinces of Jujuy, Salta, and San Juan, we recorded the Andean Swallow Orochelidon andecola at 40 localities. These are the first records in Argentina, and also represent the southernmost for the species. Some of these localities are up to 1500 m lower than the previously known elevational limit (now 800 masl), and up to 1100 km southwards. This is a relatively poorly known swallow, and we present novel natural history data. We found evidence of breeding ...

Una Estrategia de Desarrollo Local: Comunidad de San Luis Sesma, México

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Diosey Lugo

2006-01-01

Full Text Available El presente trabajo analiza la problemática que guarda San Luís Sesma, comunidad perteneciente al municipio de Mazapiltepec de Juárez, Puebla, desde una perspectiva de análisis que nos permita comprender la relación que guarda esta comunidad con su territorio y que se ha mantenido relativamente marginada, con una producción autárquica de los sistemas agropecuarios, además de una desarticulación institucional, el crecimiento de la migración hacia otras regiones como estrategia de subsistencia y de aumentar el ingreso familiar en la incorporación hacia otros sectores. Ante lo anterior, un grupo de estudiantes del Postgrado en Estrategias Agrícolas Regional del Colegio de Posgraduados, Campus Puebla, encuentran una oportunidad para proponer líneas de acción estratégicas de corto y mediano plazo en el sector agropecuario, en base a los recursos naturales disponibles de la comunidad, y el involucramiento de los actores sociales a través de la organización como elemento articulador del grupo de productores de San Luís Sesma y la participación de las instituciones gubernamentales mediante los programas estatales y federales que promuevan una transferencia de tecnología, de experiencias, de recursos, de tal manera que todo lo anterior coadyuve a aumentar los sistemas de producción y por ende se vea reflejado en mejores ingresos para los productores de la comunidad.

Some examples of spin-off technologies: San Carlos de Bariloche; Algunos ejemplos de tecnologias derivadas: San Carlos de Bariloche

Energy Technology Data Exchange (ETDEWEB)

Meyer, Gabriel O [Comision Nacional de Energia Atomica, San Carlos de Bariloche (Argentina). Centro Atomico Bariloche

2001-07-01

The Bariloche Atomic Center (CAB) and the Balseiro Institute, both in San Carlos de Bariloche, are mainly devoted to scientific research and development, the first one; and to education and training the second one. Besides providing specialists in physics and nuclear engineering for research centers in Argentina and abroad, both establishments are transferring technologies and providing services in different fields such as waste management, metallurgy, forensic sciences, medicine, geology, modeling, archaeology, paleontology, etc.

Short-term seasonal variability in 7Be wet deposition in a semiarid ecosystem of central Argentina

International Nuclear Information System (INIS)

Juri Ayub, J.; Di Gregorio, D.E.; Velasco, H.; Huck, H.; Rizzotto, M.; Lohaiza, F.

2009-01-01

The 7 Be wet deposition has been intensively investigated in a semiarid region at San Luis Province, Argentina. From November 2006 to May 2008, the 7 Be content in rainwater was determined in 58 individual rain events, randomly comprising more than 50% of all individual precipitations at the sampling period. 7 Be activity concentration in rainwater ranged from 0.7 ± 0.3 Bq l -1 to 3.2 ± 0.7 Bq l -1 , with a mean value of 1.7 Bq l -1 (sd = 0.53 Bq l -1 ). No relationship was found between 7 Be content in rainwater and (a) rainfall amount, (b) precipitation intensity and (c) elapsed time between events. 7 Be ground deposition was found to be well correlated with rainfall amount (R = 0.92). For the precipitation events considered, the 7 Be depositional fluxes ranged from 1.1 to 120 Bq m -2 , with a mean value of 32.7 Bq m -2 (sd = 29.9 Bq m -2 ). The annual depositional flux was estimated at 1140 ± 120 Bq m -2 y -1 . Assuming the same monthly deposition pattern and that the 7 Be content in soil decreases only through radioactive decay, the seasonal variation of 7 Be areal activity density in soil was estimated. Results of this investigation may contribute to a valuable characterization of 7 Be input in the explored semiarid ecosystem and its potential use as tracer of environmental processes.

El círculo meridiano automático de San Fernando - San Juan. Sus primeros pasos en el hemisferio sur

Science.gov (United States)

Mallamaci, C. C.; Muiños, J. L.; Gallego, M.; Pérez, J. A.; Marmolejo, L.; Navarro, J. L.; Sedeño, J.; Vallejos, M.; Belizón, F.

Se informa sobre el estado actual del Círculo Meridiano Automático de San Fernando-San Juan. El instrumento (Grubb-Parson, de 178mm de abertura y 2665 mm de distancia focal) es gemelo del que se encuentra en las Islas Canarias, y fue instalado durante los meses de julio y agosto de 1996 en la estación astronómica ``Dr. C.U.Cesco" (El Leoncito, Barreal), a unos 200 km de distancia de la ciudad de San Juan, merced a un Convenio de Cooperación Científica, firmado en 1994 entre el ROA (España) y el OAFA (Argentina). En la actualidad se está llevando a cabo un programa de prueba cuyos resultados preliminares muestran que el telescopio está en buenas condiciones para observar estrellas de hasta magnitud aproximada 14.5, con buenos errores de observación (<0.12" en ascensión recta y declinación).

Características y estrategias de los tamberos-queseros de la Colonia San Martín (Entre Ríos, Argentina

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Graciela Mingo

2010-01-01

Full Text Available En este artículo se presenta un análisis de la actividad de los tamberos productores de leche que también elaboran quesos, en la Colonia San Martín, Departamento Paraná, Cuenca Lechera Oeste de la Provincia de Entre Ríos (Argentina. Se estudiaron seis casos identificando las formas de trabajo, la capacitación, las trayectorias de vidas, las normas de calidad en la elaboración de quesos y los circuitos de comercialización. Se utilizaron fuentes de información secundarias obtenidas del INTA y del Censo Nacional Agropecuario 2002, y se realizaron entrevistas semiestructuradas para lograr un mayor contacto con los informantes. Los resultados muestran que los establecimientos tambo- queseros son una fuente de empleo generador de valor agregado en la economía regional y van adaptando normas de calidad para competir en el mercado, favorecidos por el acceso a la energía eléctrica; la comercialización de sus productos se realiza dentro del mercado doméstico, a nivel local y regional.

Main flavonoids, DPPH activity, and metal content allow determination of the geographical origin of propolis from the Province of San Juan (Argentina).

Science.gov (United States)

Lima, Beatriz; Tapia, Alejandro; Luna, Lorena; Fabani, María P; Schmeda-Hirschmann, Guillermo; Podio, Natalia S; Wunderlin, Daniel A; Feresin, Gabriela E

2009-04-08

The chemical characterization as well as the assessment of geographical origin of propolis from several areas of the Provincia de San Juan (Argentina) is reported. Chemical characterization of propolis was performed by measuring total phenolic (TP), total flavonoids (FL), free radical scavenging capacity (DPPH bleaching), and metal content in samples of six different districts. Methanolic propolis extracts (MEP) showed TP ranging from 25.7 to 39.3 g of gallic acid equivalents per 100 g of MEP, whereas flavonoids ranged from 6.6 to 13.3 g of quercetin equivalents per 100 g of MEP. Six main flavonoids were isolated and identified from the propolis samples, comprising the flavanones 7-hydroxy-8-methoxyflavanone (1), pinocembrin (2), and pinobanksin (3), the flavones chrysin (4) and tectochrysin (5), and the flavonol galangin (6). Compounds 1-6 were quantified by HPLC-PDA. Free radical scavenging activity, measured as percent DPPH bleaching, ranged from 46.6 to 89.5 at 10 mug/mL. Moreover, propolis samples presented high contents of Ca, K, Fe, Na, and Mg, but low amounts of Mn and Zn. Linear discriminant analysis affords eight descriptors, galangin, pinocembrin, pinobanksin, chrysin, tectochrysin, DPPH, K, and Na, allowing a clear distinction with 100% accuracy among different origins within the Provincia de San Juan. A direct relationship of DPPH free radical scavenging activity with TP or with compounds 1-6 was not found, showing the need of further evaluation on the origin of free radical activity in propolis samples.

International Seminar on Nuclear policy in Argentina and the world: present and perspectives

International Nuclear Information System (INIS)

2012-01-01

The 25 and April 26, 2013 was held in Buenos Aires the International Seminar 'Nuclear Politics in Argentina and the world: present and perspectives', organized by the Nuclear Regulatory Authority (ARN), the National University of San Martin (UNSAM) and University of San Andres (UdeSA). With the main objective of creating an area for reflection and discussion on the state of the global nuclear policy, its impact on the region and in our country, and raised as an area of interaction between the academic and those working in the sector policies. The seminar consisted of six thematic panels, in addition to the opening session, in which academics and researchers exposed renowned in dialogue with officials and professionals of the nuclear sector. In this seminar were presented some papers of the following topics: historical approaches to nuclear policy in emerging contexts; nuclear policy and civil society; discussion and perspectives on proliferation and non-proliferation, security in the post-Fukushima: discussion and perspectives; Argentina-Brazil: from competition to cooperation, present and prospects for the nuclear industry.

Replegamiento de láminas de corrimiento epidérmicas mediante fallas inversas de basamento activas en la Precordillera Oriental del oeste de Argentina

OpenAIRE

Meigs, A.; Krugh, W. C.; Schiffman, C.; Vergés, Jaume; Ramos, V. A.

2006-01-01

Devastating earthquakes like the 1944 San Juan earthquake reflect active deformation in western Argentina. Although the earthquake caused considerable damage to San Juan, the source of the earthquake remains uncertain. Potential source faults occur in the thin-skinned fold-and-thrust belt Precordillera province and in the thick-skinned Sierras Pampeanas province, to the west and east, respectively of Sierra de Villicum, a thrust sheet in the eastern Precordillera northwest of San Juan. Sierra...

PRELIMINARY GEOID MODEL IN SAN JUAN PROVINCE: A CASE STUDY IN THE ANDES

DEFF Research Database (Denmark)

Tocho, Claudia; Miranda, Silvia; Pacino, Maria Cristina

2008-01-01

A high-resolution and high-precision detailed gravimetric geoid has been computed for San Juan province in Argentina, ranging from 27 degrees S to 34 degrees S in latitude and 72 degrees W to 65 degrees W in longitude. The gravimetric geoid was calculated using the RTM method, a multiband spheric...

Students' Perception of Plant and Animal Species: A Case Study from Rural Argentina

Science.gov (United States)

Nates, Juliana; Campos, Claudia; Lindemann-Matthies, Petra

2010-01-01

Exotic species seriously affect local biodiversity in Argentina. This article investigates how students in San Juan province perceive native and exotic species. With the help of a written questionnaire, 865 students (9-17 years old) were asked to name the plant and animal they liked most, disliked most, and perceived as most useful, and to name…

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.

Estudio cap de dengue en los distritos de Cercado de Lima, La Victoria y San Luis. Lima, Perú. junio 2004

Directory of Open Access Journals (Sweden)

Ronal Jamanca S

2005-03-01

Full Text Available Objetivos: Determinar el nivel de conocimientos, actitudes y prácticas con respecto al dengue en la población de tres distritos de Lima, Perú: Lima Cercado, La Victoria y San Luis. Materiales y Métodos: Estudio descriptivo, transversal y prospectivo, basado en la población, el tamaño muestral calculado para un índice aédico de 1%, se usó un muestreo bietápico. Se usó una entrevista estructurada de 17 preguntas cerradas, aplicada por personal de saneamiento ambiental o promotores de salud capacitados, a la primera persona adulta que atendía en la vivienda seleccionada. Los datos fueron ingresados en Epi Info v.6 y analizados en SPSS v.11. Resultados: Se entrevistó a 5381 pobladores, el promedio de edad de lo participantes fue de 42±16 años, las dos terceras partes fueron mujeres y 76% tenían un nivel de educación secundaria o superior. El 69,2% manifestó conocer el dengue, sin embargo sólo 65,4% de los que declaraban conocerlo tenían un conocimiento aceptable. 121 entrevistados (2,1% refirieron picaduras matutinas en los miembros inferiores, sospechosas de Aedes aegypti. El 55,1% de los entrevistados practicaban almacenamiento de agua en sus viviendas, siendo La Victoria el lugar más frecuente con esta práctica (65,8%. En comparación con los que hicieron estudios escolares en el norte del país, los que estudiaron en la sierra tuvieron significativamente menor conocimiento del dengue (OR= 2,21; IC 95%: 1,72-2,83. Conclusiones: Es necesario implementar actividades intersectoriales de promoción, prevención y control del dengue, especialmente en la jurisdicción de la Victoria y en aquellas personas provenientes de la sierra; así como, fortalecer la vigilancia entomológica, sobretodo en aquellas viviendas donde se reporta picaduras sospechosas de Aedes aegypti.

Carbonate clumped isotopes and in situ temperature monitoring for Holocene soils in the San Luis Valley, USA indicate springtime carbonate formation

Science.gov (United States)

Hudson, A. M.; Paces, J. B.; Ruleman, C.

2017-12-01

Pedogenic carbonate horizons are abundant in semi-arid and arid regions worldwide and within the geologic record. They present a widely distributed archive of past environmental conditions, driven by global climate or tectonically-controlled elevation changes. Oxygen and carbon isotopes in calcite-rich nodules and clast rinds are widely-applied indicators of past soil water and CO2 composition linked to changing precipitation and plant communities. The temperature of carbonate formation, however, provides key constraint on past water/CO2 values and elucidate why they may have changed in the past. Clumped isotope thermometry can provide this constraint and additional climate information, given the carbonate forming system is well understood. We present preliminary clumped isotope (Δ47) temperatures for Holocene soil carbonates, constrained by 14C and U-Th disequilibrium dating, compared with two years of in situ soil temperature data to better understand the mechanism and seasonality of carbonate formation in the San Luis Valley region of the southern Rocky Mountains. Five temperature-monitoring sites ranging in elevation (1940-2450 m) and latitude (36.2-37.9°N) were installed in a variety of settings (range front, valley center, and canyon). The resulting records show indistinguishable seasonal temperature variations at >60 cm depth. This suggests Δ47 temperatures should be comparable at sites across the region. Temperatures based on Δ47 measurements of Holocene (>1.8 to 11.0 ka BP) carbonates at these sites yield consistent inter-site temperatures of 10±4°C, which are similar to modern springtime soil temperatures at depth. This seasonality matches previous results of isotopic modeling at sites further south along the Rio Grande corridor. Temperatures during March to May show multiple, abrupt warming and cooling cycles on weekly timescales caused by wetting and drying of the soil during spring precipitation events. This may drive carbonate precipitation

Monitoreo de funcionamiento y estrategias de eficiencia energética para el edificio público de Obras Sanitarias Sociedad del Estado, San Juan, Argentina

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Yesica Alamino Naranjo

2015-06-01

Full Text Available El incremento de la potencia instalada en los sectores de consumo, por encima de la capacidad de generación, en los últimos diez años, sitúa a Argentina como país dependiente energéticamente. Una de las medidas de mitigación de las consecuencias ambientales, sociales y económicas asociadas, consiste en reducir el consumo de energía en los edificios. La sociedad pasa más del 30% de su tiempo en espacios de trabajo, en ambientes climatizados. Es objetivo del trabajo es encontrar estrategias de mejora sobre la eficiencia energética del edificio sin disminuir la calidad de vida de los usuarios. Para ello, se lleva a cabo un estudio de campo en el edificio sede de Obras Sanitaria Sociedad del Estado (OSSE, ubicado en la ciudad de San Juan (Argentina, mediante una aproximación experimental, contemplando aspectos funcionales, tecnológicos y referentes al equipamiento del edificio. Los resultados muestran valores de demanda de energía elevados en sistemas de climatización y artefactos de consumo eléctrico en oficinas. La implementación de estrategias de intervención de mínima inversión permitiría reducir el consumo energético en un 42% y recuperar más del 70% de la inversión durante el primer año de funcionamiento.

Exposure to creosote bush phenolic resin causes avoidance in the leaf-cutting ant Acromyrmex lobicornis (Formicidae: Attini La exposición a la resina fenólica de jarilla causa deterrencia en la hormiga cortadora de hojas Acromyrmex lobicornis (Formicidae: Attini

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ANA I MEDINA

2012-06-01

Full Text Available We focused our study on the effects of Larrea cuneifolia phenolic resin on leaf-cutting ants from two populations (Sierra de las Quijadas National Park and San Roque of Acromyrmex lobicornis in San Luis, Argentina. We conducted two bioassays of food choice (field and laboratory to compare the effects of phenolic resin on ant workers from these two populations. Results of the field experiment indicated that there were no differences in preference for either leaves treated with resin or untreated leaves among colonies from both localities. However, results of the laboratory experiments with individual ants indicated a significant effect of population and treatment on the time spent in different treatments. While leaf-cutting individual workers from Quijadas preferred the phenolic resin, workers from San Roque avoided it. These results evidence that ants respond according to time of exposure to chemicals from plants (presence or absence and that the effects of resin among a population can be observed and measured on individual ant workers, even in the absence of fungus garden influences in the nest.Este estudio se ha centrado en los efectos que produce la resina fenólica de Larrea cuneifolia sobre dos poblaciones distintas (Parque Nacional de Sierra de las Quijadas y la localidad de San Roque de Acromyrmex lobicornis en San Luis, Argentina. Se disenaron dos tipos de bioensayos (a campo y en laboratorio para comparar los efectos de la resina fenólica sobre las hormigas obreras de estas dos poblaciones. Los resultados de los experimentos de elección de la oferta alimentaria en el campo, indicaron que no hubo ninguna diferencia de preferencia entre las colonias, ni por las hojas tratadas con resina ni por las hojas sin tratar para ambas localidades. Sin embargo, los resultados de los experimentos de laboratorio con las hormigas obreras individualmente indicaron efectos significativos entre las poblaciones y entre los tratamientos. Mientras que las

Estudio preliminar sobre la relación entre el nivel educativo de la madre y los Índices Comprensión Verbal y Velocidad de Procesamiento del WISC-IV

OpenAIRE

Labin, Agustina; Brenlla, Maria Elena; Taborda, Alejandra

2016-01-01

En la ciudad de San Luis (Argentina), se llevó adelante un estudio piloto de tipo exploratorio-descriptivo con el objetivo de estudiar la relación entre los años de educación materna como medida del nivel socioeconómico y ambiental y la producción cognitiva de niños y niñas a partir de la Escala de Inteligencia para Niños de Wechsler (WISC-IV). A los fines de esta investigación se optó por incluir sólo dos puntuaciones compuestas obtenidas en la Escala; el Índice Comprensión Verbal que refier...

PRAMU. Contamination sources

International Nuclear Information System (INIS)

Asenjo, Armando R.

2000-01-01

Mining and milling activities have been carried out in Argentina during the last 40 years, and nowadays National Atomic Energy Commission (CNEA) of Argentina is undertaking the Uranium Mining Environmental Restoration Project (PRAMU). The aim of this project is to achieve that in all the places where uranium mining activities were developed, to restore the environment as much as it is possible, according to the legislation in force. The sites which are studied are: Malargue (Mendoza province), Cordoba (Cordoba province), Los Gigantes (Cordoba province), Huemul (Mendoza province), Pichinan (Chubut province), Tonco (Salta province), La Estela (San Luis province), Los Colorados (La Rioja province). In order to develop the restoration project in each site, one of the first task to be performed is to know quantities and the chemical, physicals and radiological characteristics of the contamination sources. In the present paper the activities of PRAMU in this field, are informed. (author)

Markers of typical red wine varieties from the Valley of Tulum (San Juan-Argentina) based on VOCs profile and chemometrics.

Science.gov (United States)

Fabani, María P; Ravera, Mario J A; Wunderlin, Daniel A

2013-11-15

We studied the VOCs profile of three red wine varieties, produced in the Valley of Tulum (San Juan-Argentina), over 4 consecutive years. Our main goal was to verify if different wine varieties could be differentiated from their VOCs profile, considering changes induced by their age, the yeast inoculated and the type of alcoholic fermentation, establishing those compounds that could be used as chemical markers of a particular variety. Stepwise LDA of selected VOCs allowed 100% differentiation between studied wines, showing that high levels of 1-hexanol were characteristic for Malbec, while low level of ethyl caproate was characteristic for Bonarda. Using controlled fermentations, 1-hexanol, a pre-fermentative VOC, presented a similar trend in wines produced from different yeast; while other fermentative VOCs, like ethyl caproate and ethyl caprilate, presented lower levels for Bonarda but also for Syrah. To our knowledge, this is the first report on characterization of VOCs from Bonarda. Additionally, the quantitative analysis of VOCs profile, coupled to chemometrics, present a good alternative to differentiate wines from different varieties and also for studying wine fermentation. Copyright © 2013 Elsevier Ltd. All rights reserved.

Marcas urbanas y sentidos sociales en disputa. San Carlos de Bariloche, Argentina, 1966-1983

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Paula Gabriela Núñez

2013-07-01

Full Text Available San Carlos de Bariloche es la principal localidad turística de la Patagonia argentina. Representa, por su dimensión, a la ciudad más poblada de la provincia de Río Negro y es la tercera en tamaño en la Patagonia. Su crecimiento demográfico ha estado nutrido por diferentes migraciones nacionales y extranjeras. De estas últimas las principales provienen de países latinoamericanos. El artículo apunta a indagar en  la desvalorización de su migración más importante, la chilena, durante la segunda mitad del siglo XX. Esta exclusión se fortaleció entre 1966 y 1983, por las iniciativas estatales que exacerbaron la xenofobia, las persecuciones políticas, la precarización de las condiciones laborales y los cambios en la organización espacial durante los gobiernos dictatoriales del período, esto es, los que se desarrollaron de 1966 a 1973 y de 1976 a 1983. El presente artículo analiza cómo algunos espacios de Bariloche se constituyeron en marcas urbanas que representaron intereses de los sectores más visibles en nombre de la “nación”, al tiempo que revisa dispositivos de resistencia de sectores excluidos de migrantes chilenos, que tuvieron, paralelamente, componentes de construcción espacial. Para este último punto se aborda la construcción de la Capilla Nuestra Señora del Carmen en 1966, construida en el área conocida como “barrio de los chilenos”, que se levantó como una marca alternativa, tanto material como simbólica, para disputar pertenencia, reconocimiento y visibilidad.

Diferencias innatas y desigualdades socio-espaciales de Calidad de Vida en San Carlos de Bariloche, Argentina = Innate differences and socio-spatial inequalities Quality of Life in San Carlos de Bariloche, Argentina

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Carlos Alberto Abaleron

2016-09-01

Full Text Available El propósito del artículo es mostrar cómo diferencias innatas de la población –sexo, edad y lugar de nacimiento- están altamente asociadas con las desigualdades socio-espaciales de Calidad de Vida (CdV de un grupo de barrios de San Carlos de Bariloche, Patagonia Norte de Argentina, entre la crisis económica de 1997 y la recuperación del 2005. El método principal del análisis está basado en el Enfoque integrado de la Pobreza (EIP que mide tanto la pobreza coyuntural (Líneas de Ingreso como la estructural (Necesidades Básicas Insatisfechas, NBI de la población de acuerdo a las mencionadas diferencias del jefe del hogar. Los resultados de las observaciones hechas arrojan, en general, mejoras en el acceso a bienes y servicios debido a ingresos más altos, y reducción en la tasa de desempleo. Sin embargo, esto es menos evidente en aquellos barrios muy pobres que en otros con ausencia de pobrezas, mayores ingresos, más ocupación plena, y altos niveles de instrucción de los jefes de hogares. La interpretación de estos resultados está basada en nuestro enfoque de CdV, el cuál reconoce al conocimiento o imagen del mundo como la principal capacidad para generar libertad de decisión –sujeta a valores y principios universales que nos dicen qué es justo, mejor y bueno- que permite a las personas, grupos y a la sociedad como un todo funcionar y ser. Por el contrario, lo sucedido en Bariloche muestra que la CdV no es la misma para todos, con la creación de verdaderos campos de desigualdades socio-espaciales, con grupos de personas auto encapsulados por decisión propia, simultáneamente con grupos encerrados por el poder de otros dentro de geografías degradadas, con nulos o escasos grados de libertad para oponerse.The purpose of the article is to show how innate differences such as sex, age and birthplace, are strongly associated with socio-spatial inequalities of Quality of Life (Q&L in a group of neighborhoods

Procesos históricos y ambientales en Cerro de San Pedro, San Luis Potosí, México, 1948-1997

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Paula Andrea Martínez Chaves

2010-01-01

Full Text Available Los estudios sobre el municipio Cerro de San Pedro enfatizan la continuidad ambiental aparente que estimula la minería; sin embargo, esta lectura subvalora otras dinámicas que ocurren en la zona. Con base en observaciones directas de trabajo en campo, para realizar análisis de coberturas vegetales, entrevistas con los habitantes de la zona, revisión de cartografía e investigación de archivo, el presente trabajo muestra procesos como la explotación de recursos vegetales y el pastoreo, como actividades económicas paralelas a las labores mineras, y que no habían sido tratados hasta ahora.

The Temporal and Spatial Variability of the Confined Aquifer Head and Storage Properties in the San Luis Valley, Colorado Inferred From Multiple InSAR Missions

Science.gov (United States)

Chen, Jingyi; Knight, Rosemary; Zebker, Howard A.

2017-11-01

Interferometric Synthetic Aperture Radar (InSAR) data from multiple satellite missions were combined to study the temporal and spatial variability of head and storage properties in a confined aquifer system on a decadal time scale. The area of study was a 4,500 km2 agricultural basin in the San Luis Valley (SLV), Colorado. We had available previous analyses of C-band ERS-1/2 data from June 1992 to November 2000, and L-band ALOS PALSAR data from October 2009 to March 2011. We used C-band Envisat data to fill in the time period from November 2006 to July 2010. In processing the Envisat data, we successfully employed a phase interpolation between persistent scatterer pixels to reduce the impact of vegetation decorrelation, which can significantly reduce the quality of C-band InSAR data over agricultural basins. In comparing the results from the L-band ALOS data and C-band Envisat data in a 10 month overlapping time period, we found that the shorter wavelength of C-band InSAR allowed us to preserve small deformation signals that were not detectable using L-band ALOS data. A significant result was the finding that the elastic storage properties of the SLV confined aquifer system remained stable over the 20 year time period and vary slowly in space, allowing us to combine InSAR data acquired from multiple missions to fill the temporal and spatial gaps in well data. The InSAR estimated head levels were validated with well measurements, which indicate little permanent water-storage loss over the study time period in the SLV.

Identidades estudiantiles, conocimiento y cultura. Percepciones de jóvenes universitarios y universitarias de Cuyo, Argentina

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Hilda Mabel Guevara

2009-01-01

y 31 años de edad. Trabajé en principio con un total de 556 jóvenes (varones y mujeres, 320 de la Universidad Nacional de San Juan y 236 de la Universidad Nacional de San Luis de las que validamos 428 encuestas, estrategia que me permite hablar de ellos y de ellas en cifras, desde la descripción. Los testimonios surgidos fueron analizados mediante los programas Nudist y N.VIVO versión 2.0, recursos informáticos que facilitaron la elaboración de categorías de análisis para la búsqueda de los significados atribuidos por los propios y las propias estudiantes. Este producto recupera un tiempo particular y una secuencia singular de acontecimientos, hechos y experiencias en las que el estudiante o la estudiante se percibe actor, personaje central.

Management of Field-Evolved Resistance to Bt Maize in Argentina: A Multi-Institutional Approach

Science.gov (United States)

Signorini, Ana M.; Abratti, Gustavo; Grimi, Damián; Machado, Marcos; Bunge, Florencia F.; Parody, Betiana; Ramos, Laura; Cortese, Pablo; Vesprini, Facundo; Whelan, Agustina; Araujo, Mónica P.; Podworny, Mariano; Cadile, Alejandro; Malacarne, María F.

2018-01-01

Evolution of resistance to control measures in insect populations is a natural process, and management practices are intended to delay or mitigate resistance when it occurs. During the 2012/13 season the first reports of unexpected damage by Diatraea saccharalis on some Bt maize hybrids occurred in the northeast of San Luis province, Argentina. The affected Bt technologies were Herculex I® (HX-TC1507) and VT3PRO® (MON 89034 × MON 88017*). Event TC1507 expresses Cry1F and event MON 89034 expresses Cry1A.105 and Cry2Ab2, whichr are all Bt proteins with activity against the lepidopterans D. saccharalis and Spodoptera frugiperda (MON 88017 expresses the protein Cry3Bb1 for control of coleopteran insects and the enzyme CP4EPSPS for glyphosate tolerance). The affected area is an isolated region surrounded by sierra systems to the northeast and west, with a hot semi-arid climate, long frost-free period, warm winters, hot dry summers, and woody shrubs as native flora. To manage and mitigate the development of resistance, joint actions were taken by the industry, growers and Governmental Agencies. Hybrids expressing Vip3A protein (event MIR162) and/or Cry1Ab protein (events MON 810 and Bt11) as single or stacked events are used in early plantings to control the first generations of D. saccharalis, and in later plantings date's technologies with good control of S. frugiperda. A commitment was made to plant the refuge, and pest damage is monitored. As a result, maize production in the area is sustainable and profitable with yields above the average. PMID:29888224

Distribución geográfica de la avifauna en la Sierra Madre Oriental de San Luis Potosí, México: un análisis regional de su estado de conservación Geographic distribution of birds in the Sierra Madre Oriental of San Luis Potosí, México: a regional analysis of conservation status

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Francisco Javier Sahagún Sánchez

2013-06-01

Full Text Available La región de la Sierra Madre Oriental (SMO en el estado de San Luis Potosí en México es considerada un sitio de relevancia para la conservación de la avifauna a nivel nacional. Por lo anterior, el objetivo de este estudio fue analizar la distribución geográfica de las aves en la zona para identificar las áreas con mayor concentración de la riqueza y evaluar su estado actual de conservación para fundamentar la necesidad de incrementar la superficie dedicada a las áreas naturales protegidas en el futuro. Se recolectó información proveniente de diversas bases de datos de colecciones y museos, además de realizar trabajo de campo en el periodo de enero 2009 a Mayo 2011. Se modelaron las distribuciones potenciales para 284 especies con el programa GARP y se elaboró un mapa de consenso para determinar la ubicación espacial de las áreas con condiciones ambientales para soportar el mayor número de especies. Finalmente, se evaluó la representatividad de las zonas dedicadas a la conservación para las aves. Se registraron 357 especies, de las cuales el 71.4% son residentes permanentes, 19% son migratorias de invierno y 3.9% residentes de verano. Del total, 41 especies son endémicas y 48 se encuentran en alguna categoría de riesgo; la mayor concentración de especies se presentó en las coberturas de bosques de encino, bosques mesófilos y selvas medianas y bajas caducifolias, en un intervalo altitudinal entre 100-1 500m con una más alta cantidad de nichos en la parte centro y hacia el sur y este de la región. Sólo el 10% de las zonas con alto potencial de número de especies está incluido como área de importancia para la conservación de las aves y el 3% del total de áreas potenciales está bajo alguna categoría estatal de protección; sin embargo, ninguna de las áreas tiene un plan de manejo que esté siendo aplicado y monitoreado. La información generada es importante para el desarrollo de propuestas de conservación para las

Ontwikkeling en demonstratie van een geintegreerd bestrijdingssysteem voor de rode luis Myzus nicotianae

NARCIS (Netherlands)

Dijken, van M.J.

1998-01-01

De geïntegreerde plaagbestrijding van de paprikateelt onder glas, wordt sinds 1993 verstoord door de opkomst van de rode luis, Myzus nicotianae. Deze luis is namelijk resistent tegen het selectieve chemische correctiemiddel pirimicarb en een effectieve biologische bestrijding was onvoldoende

Detección de Malpighamoeba mellificae (Protista: Amoebozoa en Apis mellifera (Hymenoptera: Apidae de Argentina

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Santiago PLISCHUK

2010-01-01

Full Text Available Debido a su rol como polinizador y productor de miel, la abeja Apis mellifera L. es considerado un insecto beneficioso. Si bien Argentina juega un papel de liderazgo en la producción de miel, existe un considerable vacío en el conocimiento acerca de las enfermedades de etiología protista que afectan las abejas en el país. La ameba Malpighamoeba mellificae Prell es un protista entomopatógeno que invade los túbulos de Malpighi de las abejas e interfiere con el proceso de excreción, debilitando al huésped y posiblemente facilitando la acción de otros patógenos. En esta contribución se presentan los primeros hallazgos de M. mellificae en Argentina y se brindan datos iniciales acerca de su frecuencia, intensidad de las infecciones, y co-ocurrencia con Nosema sp. Malpighamoeba mellificae se halló en dos de 36 localidades prospectadas: San Cayetano, al Sur de la provincia de Buenos Aires y San Carlos de Bariloche, en el Oeste de la provincia de Río Negro.

Luis Carlos López

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Rafael Maya

1979-04-01

Full Text Available Entre los poetasa del Centenario tuvo Luis Carlos López mucha popularidad en el extranjero, desde la publicación de su primer libro. Creo que su obra llamó la atención de filósofos como Unamuno y, si no estoy equivocado, Darío se refirió a ella en términos elogiosos. En Colombia ha sido encomiada hiperbólicamente por algunos, a tiemp que otros no le conceden mayor mérito.

Some examples of spin-off technologies: San Carlos de Bariloche

International Nuclear Information System (INIS)

Meyer, Gabriel O.

2001-01-01

The Bariloche Atomic Center (CAB) and the Balseiro Institute, both in San Carlos de Bariloche, are mainly devoted to scientific research and development, the first one; and to education and training the second one. Besides providing specialists in physics and nuclear engineering for research centers in Argentina and abroad, both establishments are transferring technologies and providing services in different fields such as waste management, metallurgy, forensic sciences, medicine, geology, modeling, archaeology, paleontology, etc

Hombres: Doctor Luis Ángel Arango

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Boletín Cultural y Bibliográfico Banco de la República

1958-02-01

Full Text Available En el documento se realiza la nota de conmemoración  del fallecimiento del Doctor Luis Ángel Arango  Esta nota tiene como fin realizar un homenaje a tan reputado ciudadano colombiano y mienbro de la comunidad de funcionarios del Banco de la República.

Ln3+ (Ln=Ce, Tb, Dy) and Hf doping of LuI3 powders – A material and spectroscopic study

International Nuclear Information System (INIS)

Wiatrowska, Aneta; Keur, Wilco; Ronda, Cees

2016-01-01

The moisture sensitivity of LuI 3 :Ce,Hf and luminescent properties of undoped LuI 3 and LuI 3 :M (M=Ce 3+ , Tb 3+ , Dy 3+ ) powders were investigated. The possibility of improving the air and moisture stability of LuI 3 :Ce by Hf doping was tested. It was proven that the Hf contribution to the LuI 3 :Ce stability is very limited and is insignificant to render LuI 3 :Ce scintillator powders suitable for applications. Photoluminescence results of LuI 3 without dopants added on purpose showed luminescence due to a plurality of rare-earth elements' impurities. Two types of self-trapped luminescence were found. Energy transfer between host lattice, self-trapped excitons and rare-earth ions was investigated.

Agricultura familiar y tecnología para la elaboración de piloncillo granulado en la comunidad de Aldzulup Poytzén, San Luis Potosí

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Venancio Cuevas Reyes

2017-01-01

Full Text Available El objetivo del estudio fue caracterizar a los productores de piloncillo con la finalidad de contribuir con información que permita conocer la importancia del uso de tecnología en la elaboración de piloncillo granulado en la comunidad de Aldzulup Poytzén, Tancanhuitz, San Luis Potosí. Mediante muestreo no probabilístico , fueron entrevistados 36 productores de piloncillo. El es tudio de las variables escalares se realizó mediante análisis de varianza para comparación de medias y análisis de correlación . Se encontraron diferencias significativas (p<0.05 entre el nivel tecnológico de los productores de piloncillo (alto, medio y ba jo . N o obstante, no hubo diferencias en los niveles de producción obtenidos entre ellos. Existe una restrictiva vinculación al mercado motivada por factores de comercialización , que les dirige hacia la venta de piloncillo industrial; 97.22% de los product ores venden este tipo de piloncillo. La agricultura familiar de l os productores de piloncillo tiene una diversificación productiva en sus actividades relacionadas con la agricultura y ganadería (siembra de maíz, frijol, especies frutales, gallinas, porcino s . Se concluye que, la elaboración de piloncillo granulado, no se explica solo por el bajo nivel tecnológico, ya que este tipo de piloncillo es producido por los tres estratos. Además, el estudio corrobora la diversificación de actividades productivas de la agricultura familiar como una estrategia de sostenimiento de este tipo de productores.

Using 222Rn as a tracer of geodynamical processes in underground environments

International Nuclear Information System (INIS)

Valladares, D.L.; Silva, A.A.R. da; o, Gragoatá, 24210-340, Niterói, RJ (Brazil))" data-affiliation=" (Instituto de Física, Universidade Federal Fluminense, Av. Gal Milton Tavares de Souza, s/no, Gragoatá, 24210-340, Niterói, RJ (Brazil))" >Lacerda, T.; o, Gragoatá, 24210-340, Niterói, RJ (Brazil))" data-affiliation=" (Instituto de Física, Universidade Federal Fluminense, Av. Gal Milton Tavares de Souza, s/no, Gragoatá, 24210-340, Niterói, RJ (Brazil))" >Anjos, R.M.; Rizzotto, M.; Velasco, H.; Rosas, J.P. de; Tognelli, G.

2014-01-01

Radon levels in two old mines in San Luis, Argentina, were measured and analyzed, with the aim to assess the potential use of this radioactive noble gas as a tracer of geological processes in underground environments. La Carolina gold mine and Los Cóndores tungsten mine are today used as tourism mines. CR-39 nuclear track detectors were used for this purpose. Measurements were performed during both winter and summer seasons. The findings show that in these environments, significant radon concentrations are subject to large seasonal fluctuations, due to the strong dependence on natural ventilation with the outside temperature variations. For both mines, higher concentration values of 222 Rn were observed in summer than in winter; with an extreme ratio of 2.5 times between summer and winter seasons for Los Cóndores mine. The pattern of radon transport inside La Carolina mine revealed, contrary to what was believed, that this mine behaves as a system with two entrances located at different levels. However, this feature can only be observed in the winter season, when there is a marked difference between the inside and outside temperatures of the mine. In the case of Los Cóndores mine, the radon concentration pattern distribution is principally established by air current due to chimney-effect in summer and winter seasons. In both cases, the analyses of radon pattern distribution appear as a good method to trace air currents, and then localize unknown ducts, fissures or secondary tunnels in subterranean environments. - Highlights: • 222 Rn levels in two old mines in San Luis, Argentina • CR-39 nuclear track detectors were used for this purpose • higher concentration values of 222 Rn were observed in summer than in winter • radon pattern distribution appear as a good method to trace air currents • it localizes unknown ducts, fissures or secondary tunnels in subterranean environments

Geologic Investigation of a Potential Site for a Next-Generation Reactor Neutrino Oscillation Experiment -- Diablo Canyon, San Luis Obispo County, CA

International Nuclear Information System (INIS)

Onishi, Celia Tiemi; Dobson, Patrick; Nakagawa, Seiji; Glaser, Steven; Galic, Dom

2004-01-01

This report provides information on the geology and selected physical and mechanical properties of surface rocks collected at Diablo Canyon, San Luis Obispo County, California as part of the design and engineering studies towards a future reactor neutrino oscillation experiment. The main objective of this neutrino project is to study the process of neutrino flavor transformation or neutrino oscillation by measuring neutrinos produced in the fission reactions of a nuclear power plant. Diablo Canyon was selected as a candidate site because it allows the detectors to be situated underground in a tunnel close to the source of neutrinos (i.e., at a distance of several hundred meters from the nuclear power plant) while having suitable topography for shielding against cosmic rays. The detectors have to be located underground to minimize the cosmic ray-related background noise that can mimic the signal of reactor neutrino interactions in the detector. Three Pliocene-Miocene marine sedimentary units dominate the geology of Diablo Canyon: the Pismo Formation, the Monterey Formation, and the Obispo Formation. The area is tectonically active, located east of the active Hosgri Fault and in the southern limb of the northwest trending Pismo Syncline. Most of the potential tunnel for the neutrino detector lies within the Obispo Formation. Review of previous geologic studies, observations from a field visit, and selected physical and mechanical properties of rock samples collected from the site provided baseline geological information used in developing a preliminary estimate for tunneling construction cost. Gamma-ray spectrometric results indicate low levels of radioactivity for uranium, thorium, and potassium. Grain density, bulk density, and porosity values for these rock samples range from 2.37 to 2.86 g/cc, 1.41 to 2.57 g/cc, and 1.94 to 68.5 percent respectively. Point load, unconfined compressive strength, and ultrasonic velocity tests were conducted to determine rock

Geologic Investigation of a Potential Site for a Next-Generation Reactor Neutrino Oscillation Experiment -- Diablo Canyon, San Luis Obispo County, CA

International Nuclear Information System (INIS)

Onishi, Celia Tiemi; Dobson, Patrick; Nakagawa, Seiji; Glaser, Steven; Galic, Dom

2004-01-01

This report provides information on the geology and selected physical and mechanical properties of surface rocks collected at Diablo Canyon, San Luis Obispo County, California as part of the design and engineering studies towards a future reactor neutrino oscillation experiment. The main objective of this neutrino project is to study the process of neutrino flavor transformation--or neutrino oscillation--by measuring neutrinos produced in the fission reactions of a nuclear power plant. Diablo Canyon was selected as a candidate site because it allows the detectors to be situated underground in a tunnel close to the source of neutrinos (i.e., at a distance of several hundred meters from the nuclear power plant) while having suitable topography for shielding against cosmic rays. The detectors have to be located underground to minimize the cosmic ray-related background noise that can mimic the signal of reactor neutrino interactions in the detector. Three Pliocene-Miocene marine sedimentary units dominate the geology of Diablo Canyon: the Pismo Formation, the Monterey Formation, and the Obispo Formation. The area is tectonically active, located east of the active Hosgri Fault and in the southern limb of the northwest trending Pismo Syncline. Most of the potential tunnel for the neutrino detector lies within the Obispo Formation. Review of previous geologic studies, observations from a field visit, and selected physical and mechanical properties of rock samples collected from the site provided baseline geological information used in developing a preliminary estimate for tunneling construction cost. Gamma-ray spectrometric results indicate low levels of radioactivity for uranium, thorium, and potassium. Grain density, bulk density, and porosity values for these rock samples range from 2.37 to 2.86 g/cc, 1.41 to 2.57 g/cc, and 1.94 to 68.5% respectively. Point load, unconfined compressive strength, and ultrasonic velocity tests were conducted to determine rock mechanical

In memory of Luis Bernardo López

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Escuela de Estudios en Psicoanálisis y Cultura

2017-01-01

Full Text Available In this issue of the magazine From the Garden of Freud we want to remember what the presence of Luis Bernardo López meant in the spirit of this publication. The design and the initial model were the work of Santiago Mutis, as well as the idea of inviting a plastic artist for each number and the care of the graphic part for that exercise. However, Luis Bernardo also participated in his conception, and in his birth, in 2001, since it was his first director and editor, work that continued the following year to later take back the address of the number 7 and to advance the graphic edition of the Numbers 8 to 13. In this work I knew how to give the best shape to the project of a serial publication with which we dreamed since the year 2000.

Very Bright CV discovered by MASTER-ICATE (Argentina)

Science.gov (United States)

Saffe, C.; Levato, H.; Mallamaci, C.; Lopez, C.; Lipunov, F. Podest V.; Denisenko, D.; Gorbovskoy, E.; Tiurina, N.; Balanutsa, P.; Kornilov, V.; Belinski, A.; Shatskiy, N.; Chazov, V.; Kuznetsov, A.; Yecheistov, V.; Yurkov, V.; Sergienko, Y.; Varda, D.; Sinyakov, E.; Gabovich, A.; Ivanov, K.; Yazev, S.; Budnev, N.; Konstantinov, E.; Chuvalaev, O.; Poleshchuk, V.; Gress, O.; Frolova, A.; Krushinsky, V.; Zalozhnih, I.; Popov, A.; Bourdanov, A.; Parkhomenko, A.; Tlatov, A.; Dormidontov, D.; Senik, V.; Podvorotny, P.; Shumkov, V.; Shurpakov, S.

2013-06-01

MASTER-ICATE very wide-field camera (d=72mm f/1.2 lens + 11 Mpix CCD) located near San Juan, Argentina has discovered OT source at (RA, Dec) = 14h 20m 23.5s -48d 55m 40s on the combined image (exposure 275 sec) taken on 2013-06-08.048 UT. The OT unfiltered magnitude is 12.1m (limit 13.1m). There is no minor planet at this place. The OT is seen in more than 10 images starting from 2013-06-02.967 UT (275 sec exposure) when it was first detected at 12.4m.

Caracterización petrográfica y geoquímica y condiciones de deformación del plutón San Cristóbal, Sierra de Velasco (La Rioja, Argentina

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Bellos, L. I.

2010-12-01

Full Text Available The San Cristóbal pluton is a 35 km² granitic body that outcrops at the southestern tip of the Sierra de Velasco, located west of La Rioja city, Argentina. It is formed by monzogranites and syenogranites, together with scarce granodiorites, with medium to fine-grained, equigranular to slightly porphyritic textures. Their mineral assemblage consists of quartz + microcline + plagioclase + biotite ± muscovite + zircon + apatite + magnetite. The granite contains dioritic to tonalitic mafic enclaves. The central and eastern parts of the granite have been deformed by the NNW-SSE trending South Mylonitic shear zone formed by mylonitic rocks. The metamorphic host-rock is represented by scarce greenschist facies xenoliths and hornfels with the high T / P assemblage K-feldspar - cordierite - biotite ± sillimanite. The granites are calc-alkaline, weak- to moderately peraluminous, and formed as part of a continental magmatic arc developed along the active margin of western Gondwana during the Early Paleozoic. The depth of emplacement of the San Cristóbal pluton is estimated at ~12 km.

El plutón San Cristóbal constituye un cuerpo granítico de 35 km² que aflora en el extremo sudeste de la Sierra de Velasco, situada al oeste de la ciudad de La Rioja, Argentina. Está formado por monzogranitos y sienogranitos con escasas granodioritas, de texturas equigranulares de grano medio a fino a ligeramente porfíricas. La asociación mineral es cuarzo + microclino + plagioclasa + biotita ± moscovita + circón + apatito + magnetita. Contiene enclaves magmáticos máficos de composición diorítica a tonalítica. El granito fue afectado en su parte media y este por una zona de cizalla, formada por milonitas que integran la Faja Milonítica Sur, de rumbo NNO-SSE. La roca de caja se reconoce por xenolitos de esquistos y cuarcitas en facies esquistos verdes, y septos de corneanas con la paragénesis feldespato potásico cordierita

Redescripción y consideraciones biogeográfcas de dos especies de Scotobius (Coleoptera: Tenebrionidae de ambientes montanos del centro de Argentina y Chile Redescription and biogeographic considerations of two species of Scotobius (Coleoptera: Tenebrionidae from mountain environments of central Argentina and Chile

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Violeta A. Silvestro

2012-12-01

Full Text Available El género neotropical Scotobius Germar (Tenebrioninae: Scotobiini comprende 61 especies distribuidas desde el centro de Perú y sur de Brasil hasta el sur de Argentina y Chile. En este trabajo, revisamos dos especies de Scotobius que habitan el oeste de las provincias de San Juan, Mendoza y Neuquén (Argentina y en Chile central, a lo largo de la Cordillera de los Andes y las montañas extra-andinas en Argentina: S. punctatus Eschscholtz, 1831 y S. andrassyi Kaszab, 1969. Se proveen redescripciones utilizando nuevos caracteres morfológicos y se proporcionan fotografías de los adultos y de los pronotos. Se consigna la distribución geográfica, rangos altitudinales y las provincias biogeográficas en las que habitan estas especies. Se utiliza un modelo predictivo de distribución de especies para proponer hipótesis sobre los factores que influencian la distribución espacial y que explicarían la alopatría de ambas especies.The Neotropical genus Scotobius Germar (Tenebrioninae: Scotobiini comprises 61 species distributed from central Peru and southern Brazil to southern Argentine and Chile. In this contribution two species of Scotobius: S. punctatus Eschscholtz, 1831 and S. andrassyi Kaszab, 1969, that inhabit in western San Juan, Mendoza, and Neuquén provinces (Argentina and in central Chile, along the “Cordillera de los Andes” and extra-Andean mountains in Argentina, are revised. Redescriptions using new morphological data and photographs of habitus and pronota are provided. This article informs about the geographic distribution, altitudinal ranges and the biogeographic provinces that these species inhabit. A predictive model of species distribution is presented to propose hypothesis about the factors that influence the space distribution and the allopatry of these two species.

Optical spectroscopy and luminescence quenching of LuI3:Ce3+

International Nuclear Information System (INIS)

Birowosuto, M.D.; Dorenbos, P.; Haas, J.T.M. de; Eijk, C.W.E. van; Kraemer, K.W.; Guedel, H.U.

2006-01-01

Optical spectroscopy of LuI 3 doped with Ce 3+ using ultraviolet and visible light excitation is reported. LuI 3 host excitation and emission and 4f-5d excitation and emission of Ce 3+ are observed. An empirical model based on crystal field splitting was used to estimate the energy of the highest 4f-5d excitation band. The crystal field splitting and centroid shift were compared to those of LuCl 3 :Ce 3+ and LuBr 3 :Ce 3+ . Temperature dependence of X-ray excited luminescence spectra shows thermal quenching, whereas that of the decay curve of Ce 3+ emission excited at the lowest 5d band of Ce 3+ does not indicate the presence of quenching of Ce 3+ emission for temperature below 625K. The quenching in LuI 3 :Ce 3+ therefore occurs before the 5d Ce 3+ emission takes place

Revelando el origen de la variedad de vid ‘Bonarda’ cultivada en Argentina a través del empleo de marcadores moleculares microsatélites

OpenAIRE

De Rosas, María Inés; Martínez, Liliana

2009-01-01

‘Bonarda’ es una variedad de vid que en Argentina se cultiva principalmente en las provincias de Mendoza y San Juan, representa el segundo cepaje tinto en superficie nacional cultivada y es considerada con gran potencial para la elaboración de vinos tintos de alta calidad. Existe incertidumbre respecto a su origen en el país. La descripción ampelográfica de la ‘Bonarda’ cultivada en Argentina remarca gra...

Using {sup 222}Rn as a tracer of geophysical processes in underground environments

Energy Technology Data Exchange (ETDEWEB)

Lacerda, T.; Anjos, R. M. [LARA - Laboratório de Radioecologia e Alterações Ambientais, Instituto de Física, Universidade Federal Fluminense, Av. Gal Milton Tavares de Souza, s/no, Gragoatá, 24210-346, Niterói, RJ (Brazil); Valladares, D. L.; Rizzotto, M.; Velasco, H.; Rosas, J. P. de; Ayub, J. Juri [GEA - Instituto de Matemática Aplicada San Luis (IMASL), Universidad Nacional de San Luis, CCT-San Luis CONICET, Ej. de los Andes 950, D5700HHW San Luis (Argentina); Silva, A. A. R. da; Yoshimura, E. M. [Instituto de Física, Universidade de São Paulo, P.O. Box 66318, 05314-970, São Paulo, SP (Brazil)

2014-11-11

Radon levels in two old mines in San Luis, Argentina, are reported and analyzed. These mines are today used for touristic visitation. Our goal was to assess the potential use of such radioactive noble gas as tracer of geological processes in underground environments. CR-39 nuclear track detectors were used during the winter and summer seasons. The findings show that the significant radon concentrations reported in this environment are subject to large seasonal modulations, due to the strong dependence of natural ventilation on the variations of outside temperature. The results also indicate that radon pattern distribution appear as a good method to localize unknown ducts, fissures or secondary tunnels in subterranean environments.

Using 222Rn as a tracer of geophysical processes in underground environments

International Nuclear Information System (INIS)

Lacerda, T.; Anjos, R. M.; Valladares, D. L.; Rizzotto, M.; Velasco, H.; Rosas, J. P. de; Ayub, J. Juri; Silva, A. A. R. da; Yoshimura, E. M.

2014-01-01

Radon levels in two old mines in San Luis, Argentina, are reported and analyzed. These mines are today used for touristic visitation. Our goal was to assess the potential use of such radioactive noble gas as tracer of geological processes in underground environments. CR-39 nuclear track detectors were used during the winter and summer seasons. The findings show that the significant radon concentrations reported in this environment are subject to large seasonal modulations, due to the strong dependence of natural ventilation on the variations of outside temperature. The results also indicate that radon pattern distribution appear as a good method to localize unknown ducts, fissures or secondary tunnels in subterranean environments

The cinephilic citation in the essay films by José Luis Guerin and Isaki Lacuesta

OpenAIRE

Vidal, Belén

2014-01-01

This paper investigates the contemporary turn to cinephilia as an object of theoretical analysis and historiographical investigation through the essay films by José Luis Guerin and Isaki Lacuesta. In particular, I focus on Innisfree (José Luis Guerin 1990), Tren de sombras (Train of Shadows, José Luis Guerin 1997), Las variaciones Marker (The Marker Variations, Isaki Lacuesta 2008) and La noche que no acaba (All the Night Long, Isaki Lacuesta 2010). This work recovers and restages “cinephilic...

Helosis (Balanophoraceae en Argentina Helosis (Balanophoraceae in Argentina

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José Luis Fontana

2006-07-01

Full Text Available Se cita por primera vez para Argentina Helosis cayennensis (Swartz Sprengel var. cayennensis en base a colecciones hechas por los autores en la Isla argentina de Apipé Grande, Ituzaingó, provincia de Corrientes. Se describe e ilustra la especie, el desarrollo de la planta y su estado de conservación. Esta cita de Helosis corresponde a un género nuevo para la flora argentina.Helosis cayennensis var. cayennensis is reported for the first time for Argentina. The species is described and ilustrated. Developement and ecology are also given. Helosis is also a new generic record for Argentina.

Guía del investigador americanista para San Luís del Potosí novohispano

OpenAIRE

Montoya, Ramón Alejandro

2012-01-01

El trabajo aborda uno de los temas menos abarcados por la historiografía del norte de la Nueva España : la familiarización de la heurística sobre una región minera septentrional del México Colonial. El objetivo del trabajo es dar a conocer las vetas documentales para los estudiosos del norte de la Nueva España y no necesariamente de la jurisdicción de San Luis Potosí. Para eso proponemos una enumeración detallada de acervos y colecciones documentales del interior del país y del extranjero con...

Estudio hidrogeológico y de calidad de agua en el sector oriental de la Sierra de San Javier entre las localidades de Yerba Buena y el Manantial. Provincia de Tucuman, Republica Argentina

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D’Urso, C. H.

2005-12-01

Full Text Available The study area is located in the center west of the county of Tucumán, in the NW of Argentina. It extends from the oriental border of San Javier’s mountain between the towns of Yerba Buena and Manantial. In the piedmont zone and plain, have settled down diverse urban, agricultural centers and an important industrial complex that are supplied by underground water. The objective of this paper is to define the different geologic factors that impact in the behavior of the underground water and to define areas with appropriate hydrogeological characteristics for its use. The investigation determined that the water contained in the aquifers is of good quality and due to the high permeability, important flows can be obtained, that guarantee the supply to the population, agriculture and industry.La zona de estudio está ubicada en el centro oeste de la provincia de Tucumán, en el noroeste de Argentina. Se extiende desde el borde oriental de la sierra de San Javier entre las localidades de Yerba Buena y el Manantial. En el piedemonte y llanura se han establecido diversos centros urbanos, agrícolas y un importante complejo industrial que se abastecen de agua subterránea. El objetivo del trabajo es delimitar los distintos factores geológicos que inciden en el comportamiento del agua subterránea y tratar de definir zonas con características hidrogeológicas apropiadas para su aprovechamiento. De esta investigación se determinó que el agua que contienen los acuíferos es de buena calidad y debido a la elevada permeabilidad de los mismos, se pueden obtener importantes caudales, con lo que se garantiza el abastecimiento a la población, agricultura e industria.

Natural Distribution of Parasitoids of Larvae of the Fall Armyworm, Spodoptera frugiperda, in Argentina

Science.gov (United States)

Gabriela Murúa, M.; Molina-Ochoa, Jaime; Fidalgo, Patricio

2009-01-01

To develop a better understanding of the natural distribution of the fall armyworm, Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae), and to update the knowledge of the incidence of its complex of parasitoids. S. frugiperda, samplings in whorl-stage corn were carried out in provinces of Argentina from 1999 to 2003. S. frugiperda larvae were collected from corn in localities of the provinces of Tucumán, Salta, Jujuy, Santiago del Estero, La Rioja, Córdoba, San Luis, Chaco and Misiones. In each locality 30 corn plants were sampled and only larvae located in those plants were collected. The parasitoids that emerged from S. frugiperda larvae were identified and counted. The abundance of the parasitoids and the parasitism rate were estimated. The S. frugiperda parasitoids collected were Campoletis grioti (Blanchard) (Hymenoptera: Ichneumonidae), Chelonus insularis (Cresson) (Hymenoptera: Braconidae), Archytas marmoratus (Townsend) (Diptera Tachinidae) and/or A. incertus (Macquart), Ophion sp. (Hymenoptera: Ichneumonidae), Euplectrus platyhypenae Howard (Hymenoptera: Eulophidae), and Incamyia chilensis (Aldrich) (Diptera Tachinidae). C. grioti was the most abundant and frequent during the five-year survey. Similar diversity of parasitoids was obtained in all the provinces, with the exception of I. chilensis and E. platyhypenae that were recovered only in the province of Salta. In the Northwestern region, in Tucumán, C. grioti and species of Archytas were the most abundant and frequent parasitoids. On the contrary, in Salta and Jujuy Ch. insularis was the parasitoid most abundant and frequently recovered. The parasitism rate obtained in Tucumán, Salta and Jujuy provinces were 21.96%, 17.87% and 6.63% respectively with an average of 18.93%. These results demonstrate that hymenopteran and dipteran parasitoids of S. frugiperda occurred differentially throughout the Argentinian provinces and played an important role on the natural control of the S. frugiperda larval

The Sanrafaelic remagnetization revisited: Magnetic properties and magnetofabrics of Cambrian-Ordovician carbonates of the Eastern Precordillera of San Juan, Argentina

Science.gov (United States)

Fazzito, Sabrina Y.; Rapalini, Augusto E.; Poiré, Daniel G.

2017-11-01

Systematic rock-magnetic and magnetofabric studies were carried out on samples from twenty-three palaeomagnetic sites distributed on the La Laja, Zonda, La Flecha, La Silla and San Juan Formations, which constitute a thick middle Cambrian to early Ordovician carbonate sequence exposed in the Eastern Precordillera of Argentina. Previous palaeomagnetic studies on these rocks showed that this succession is characterized by a recent full overprint in the lower levels and a post-tectonic Permian remagnetization associated to the widespread Sanrafaelic event in the upper part. Our investigation revealed that the fluctuations of the magnetic properties are stratigraphically (lithologically) controlled. Anisotropy of magnetic and anhysteretic susceptibility measurements defined consistent fabrics along the entire section that switch progressively from "inverse", at the bottom, to "normal", at the top, with "intermediate" fabrics occurring mainly at medium levels. Degree of dolomitization significantly affects many rock-magnetic parameters, but appears unrelated to the presence of the Permian remagnetization, which is determined to reside in magnetite despite the complex magnetic mineralogy shown by the studied carbonates. Hysteresis cycles of rocks affected by the Sanrafaelic remagnetization are governed by ferromagnetic fractions showing a clear difference respect to those not affected and characterized by the dominance of paramagnetic or diamagnetic signals. The magnetic fabrics and mineralogical characterization rule out a thermoviscous origin and suggest a chemical remagnetization originated in the authigenic formation of magnetite for the Sanrafaelic overprint. X-ray diffraction analyses indicate that clay minerals are virtually absent in the whole succession with no traces of illite in any sample, discarding burial diagenesis of clay minerals for the origin of the remagnetization. Lack of late Palaeozoic magmatic rocks near the study area difficults correlation of

port_san_luis.grd

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — NGDC builds and distributes high-resolution, coastal digital elevation models (DEMs) that integrate ocean bathymetry and land topography to support NOAA's mission to...

Difusión de conocimientos y actividades de desarrollo social de empresas petroleras de la Cuenca del Golfo San Jorge

OpenAIRE

Huinchulef, María Eugenia

2010-01-01

Huinchulef, M. E. (2010). Difusión de conocimientos y actividades de desarrollo social de empresas petroleras de la Cuenca del Golfo San Jorge (Tesis de Maestría). Universidad Nacional de Quilmes, Bernal, Argentina. En este trabajo se indaga acerca de la difusión de conocimientos y las actividades de desarrollo social que realizan las empresas petroleras radicadas en la Cuenca del Golfo San Jorge (CGSJ). Desde el descubrimiento del petróleo en 1907, en Comodoro Rivadavia, la reg...

Description of a new species of Perichaena (Myxomycetes from arid areas of Argentina

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Hernández-Crespo, Juan Carlos

2009-12-01

Full Text Available A new species of the myxomycete genus Perichaena is described in this paper. The new species, named Perichaena calongei, was found during intensive studies of arid areas of the Monte desert in Argentina. It has been found directly in the field from the provinces of Catamarca, La Rioja, Salta and San Juan, in the Northwest of Argentina, and isolated from moist chamber cultures of native plant species collected in Catamarca, Jujuy, Salta and San Juan. The characters that make this species unique in the genus are the combination of the morphology of the sporocarps, the structure and dehiscence of the peridium, and the ornamentation of the capillitium. The morphology of the my xo - mycete specimens was examined using light microscopy with Nomarski interference contrast, and scanning electron microscopy. Micrographs of relevant morphological characters are included. A key to facilitate the identification of the stipitate species of Perichaena is also proposed.

Se describe una nueva especie, Perichaena calongei, que fue encontrada en el desierto de Monte, en las zonas áridas del nor - oeste de Argentina. Los cuerpos fructíferos se encontraron fructificados en el campo, también se obtuvieron por cultivo en cámara húmeda de plantas recolectadas en las provincias de Catamarca, Jujuy, La Rioja, Salta y San Juan. La combinación de caracteres de la morfología del esporocarpo, de la estructura y tipo de dehiscencia del peridio, y de la ornamentación del capilicio, distinguen esta especie del resto de las conocidas en el género. La morfología de la especie se analizó con un microscopio óptico dotado de contraste interferencial de Nomarski y con un microscopio electrónico de barrido, se incluyen ilustraciones de las estructuras observadas. Se propone una clave dicotómica para la identificación, a nivel mundial, de las especies estipitadas del género Perichaena.

Morfodinámica de un campo de dunas submarinas en una entrada de marea: San Blas, Argentina Submarine dune field morphodynamics in a tidal inlet: San Blas, Argentina

OpenAIRE

Diana G Cuadrado; Eduardo A Gómez

2012-01-01

Se estudió la morfología de un campo de dunas submarinas desarrollado en una entrada de marea que conecta la plataforma continental argentina con bahía Anegada (sur de la provincia de Buenos Aires). Se infiere la circulación sedimentaria a partir del desplazamiento diferencial de las geoformas medido en relevamientos consecutivos. Como parte de la metodología se utilizó un ecosonda y un sistema batimétrico por medición de fase (SBMF) denominado GeoSwath que permitieron obtener la morfología s...

Argentina.

Science.gov (United States)

1986-06-01

This discussion of Argentina covers geography, the people, history and political conditions, government, economy, foreign relations, and relations between the US and Argentina. In 1985, the population of Argentina was estimated to be 30.6 million with an estimated annual growth rate of 1.5%. The infant mortality rate is 34.1/1000, and life expectancy is 70.2 years. Argentina, which shares land borders with Bolivia, Brazil, Chile, Paraguay, and Uruguay, is bounded by the Atlantic and the Antarctic Oceans. Descendants of Italian and Spanish immigrants predominate in Argentina, but many trace their origins to British and West and East European ancestors. In recent years, there has been a substantial influx of immigrants from neighboring Latin American countries. The native Indian population, estimated to be 50,000, is concentrated in the peripheral provinces of the north, northwest, and south. What is now Argentina was discovered in 1516 by the Spanish navigator Juan de Solia. The formal declaration of independence from Spain was made on July 9, 1816. In the late 19th century, 2 forces worked to create the modern Argentine nation: the introduction of modern agricultural techniques and the integration of Argentina into the world economy. Argentina has impressive human and natural resources, but political conflict and uneven economic performance since World War II have impeded full realization of its considerable potential. Yet, it is one of the wealthiest countries in Latin America. Among the reasons for the military coup of March 1976 was the deteriorating economy, caused by declining production and rampant inflation. Under the leadership of the Minister of the Economy, the military government focused attention on those immediate problems, and, in 1978, embarked on a new development strategy focusing on the establishment of a free market economy. There was little improvement in the economy, and a new economic plan was introduced in 1985 which has capped inflation by

Annual variation of 7Be soil inventory in a semiarid region of central Argentina

International Nuclear Information System (INIS)

Lohaiza, F.; Velasco, H.; Juri Ayub, J.; Rizzotto, M.; Di Gregorio, D.E.; Huck, H.; Valladares, D.L.

2014-01-01

Reliable information on environmental radionuclides atmospheric entrance, and their distribution along the soil profile, is a necessary condition for using these soil and sediment tracers to investigate key environmental processes. To address this need, 7 Be content in rainwater and the wet deposition in a semiarid region at San Luis Province, Argentina, were studied. Following these researches, in the same region, we have assessed the 7 Be content along a soil profile, during 2.5 years from September 2009 to January 2012. As expected, the specific activity values in soil samples in the wet period (November–April) were higher than in the dry period (May–October). During the investigated period (2009 – beginning 2012) and for all sampled points, the maximum value of the 7 Be specific activity (Bq kg −1 ) was measured at the surface level. A typical decreasing exponential function of 7 Be areal activity (Bq m −2 ) with soil mass depth (kg m −2 ) was found and the key distribution parameters were determined for each month. The minimum value of areal activity was 51 Bq m −2 in August, and the maximum was 438 Bq m −2 in February. The relaxation mass depth ranges from 2.9 kg m −2 in March to 1.3 kg m −2 in August. 7 Be wet deposition can explain in a very significant proportion the 7 Be inventory in soil. During the period of winds in the region (September and October), the 7 Be content in soil was greater than the expected contribution from wet deposition, situation that is compatible with a higher relative contribution of dry deposition at this period of the year. - Highlights: • The 7 Be content along the soil profile in a semiarid region of Argentina was assessed. • The 7 Be areal activity on soil shows an exponentially decreasing distribution with mass depth. • The relaxation mass depth ranging from 2.9 kg m −2 to 1.3 kg m −2 in wet and dry period respectively. • A simple model is used to determine the 7 Be content in soil from the 7

Educación sobre Patrimonio Documental: el caso de la Escuela de Ciencias de la Información de la Universidad Autónoma de San Luis Potosí

Directory of Open Access Journals (Sweden)

Rosa María Martínez Rider

2016-01-01

Full Text Available Este trabajo presenta los resultados de una investigación educativa en la materia de Patrimonio Documental impartida en la Escuela de Ciencias de la Información de la Universidad Autónoma de San Luis Potosí. Para la investigación, se siguieron tres momentos. En la primera etapa se investigaron los resultados del uso de las herramientas didácticas como los mapas conceptuales, los estudios de caso y los problemas, entre otros. En la segunda se aplicó un cuestionario sobre el aprendizaje de la asignatura para determinar los temas de interés o los que fueron complicados para estudiantes, y que requirieron de reforzamiento o mayor profundización. En la tercera se elaboró una rúbrica que establece un parámetro de los posibles resultados finales del aprendizaje del grupo. Lo más importante de la aplicación fue la identificación puntual de las barreras de aprendizaje y la realización de acciones para que el alumnado se apropiara del conocimiento. Las partes fuertes del curso se relacionaron con las áreas directamente correspondientes a las Ciencias de la Información Documental y la historia. La parte más débil es la tasación o asignación del valor económico de los bienes bibliográficos y documentales, en virtud de que esta se consolida con un amplio conocimiento del mercado y con la experiencia.

Formative experiences, self-identifications and environmental conflicts in the southwest of Misiones (Argentina)

OpenAIRE

Padawer, Ana; Canciani, María Laura

2015-01-01

En este artículo abordaremos cómo se relacionan las experiencias formativas vinculadas al trabajo rural, las identificaciones y los conflictos ambientales en San Ignacio, Misiones (Argentina). Nos interesa problematizar cómo los aprendizajes ligados a las tareas rurales se vinculan con las auto-adscripciones de los sujetos, teniendo como referencia las categorías de actores sociales agrarios regionales y las denominaciones que provienen de agendas estatales de intervención. Estos procesos aco...

Preliminary calculations on the cooling rate of the Renca batholit, Sierra de San Luis, Argentina

International Nuclear Information System (INIS)

Lopez de Luchi, M.G.; Ostera, H.A.; Linares, E; Rosello, E.A

2001-01-01

Cooling rates can be used to constrain the unroofing history of plutonic-metamorphic system. Geocronological cooling rates (Spear and Parrish, 1996) can be unravelled using age calculations on minerals that were open systems and subsequently passed through their closure temperatures (Dodson, 1973) during cooling. Several age determinations on different minerals are needed in order to accurately constrain the cooling path of a pluton (Hodges 1991, Spear and Parrish, 1996 and references therein). Isotopic open-system behaviour in minerals can be modelled as volume diffusion process (Hodges, 1991 and references therein), which depends on the cooling rate of the whole system. We present the first results on the calculation of the cooling rate of the Renca batholith on the basis of the combination of both thermometric calculations and available crystallization and cooling ages (au)

Effect of seasonal variations and collection form on antioxidant activity of propolis from San Juan, Argentina.

Science.gov (United States)

Isla, María I; Zampini, Iris C; Ordóñez, Roxana M; Cuello, Soledad; Juárez, Belén Carrasco; Sayago, Jorge Esteban; Moreno, María I Nieva; Alberto, María Rosa; Vera, Nancy R; Bedascarrasbure, Enrique; Alvarez, Alejandro; Cioccini, Fabián; Maldonado, Luis M

2009-12-01

Propolis was included in the Argentine Food Code as a functional food. The chemical parameters and antioxidant properties of propolis samples from the same colonies of Apis mellifera in San Juan (Cuyo region, Western Argentine) were compared every month for 1 year using two collection methods. Chemical parameters were analyzed by the spectrophotometric method and fingerprinting using high-performance liquid chromatography with ultraviolet detection. The antioxidant activities of propolis samples were measured using model systems including the analysis of the scavenging activities for 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals and the beta-carotene bleaching assay. The results showed that propolis had a higher free radical scavenging and lipid peroxidation inhibitory capacity than butylated hydroxytoluene and quercetin, antioxidants used in the pharmaceutical and food industries. The concentration required to scavenge 50% of free radicals (SC(50)) values differed depending on the sample collection month. Samples collected in November had the highest antioxidant capacity. In all cases, SC(50) values of propolis samples obtained by scraping were similar to those collected from a wire mesh (5 microg/mL for ABTS and 20-30 microg/mL for DPPH radicals). A significant positive correlation was found between the antioxidant capacity and flavonoid content of each analyzed extract. The chemical profiles were very similar. Galangin (3,5,7-trihydroxyflavone), an antioxidant compound, was detected in all samples as a major compound. The chromatographic profile suggests that of Baccharis sp., which would be one of the botanical sources of propolis from western Argentina, and the content of galangin can be used as a parameter for evaluating propolis quality. Our results suggest that Argentine propolis from Cuyo is a promising source of bioactive compounds as ingredients for developing functional foods with a

Searching pristine source of two gabbric plutons outcroping in Central Sierras Pampeanas Range, Argentina

International Nuclear Information System (INIS)

Daziano, C.; Ayala, R.

2010-01-01

This work is about the study of two gabbric plutons outcrop ing throughout Central Sierras Pampeanas range (Cordoba province, Argentina). San Lorenzo hill gabbric plutons is in the Upper proterozoic age whereas Cañada del Puerto belongs to the Early proterozoic.They are stock-type igneous bodies and they are intrusive s in an Upper Precambrian crystalline basement; it is mainly composed by gneisses, migmatites, schistes, marbles, amphibolite s, tact's, serpentinites and related rocks

Bicentenario, identidad y cambio lingüístico: El sistema verbal de referencia temporal futura en San Juan, Argentina, durante el siglo XIX

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Silvana Elizabeth Alaníz

2010-11-01

Full Text Available In this work framed within the functional variacionist theory that relates form, motivation and culture, we want to show how the XIX century native speaker of Spanish in San Juan, Argentina, alternates between synthetic and periphrastic devices to refer to future time according to their communicative purposes. The corpus consists of family letters written between 1837 and 1889, in the "century of political independencies and the creation of new states, in which the fight for Latin American identity begins" [Majfud, 2002]. We consider that these alternate constructions are not equivalent syntactically, semantically nor pragmatically, their use being favoured by certain parameters. Of these parameters, we analyze the one through which, we believe, the periphrastic innovation "ir a + infinitivo" started. We adhere to the fact that "the functional explanations of linguistic change do not exclude but imply cultural explanations" [Coseriu, 1977]. This pragmatic approximation to linguistic use demands at the same time a qualitative and quantitative analysis. "It will not only matter what structures language contains, but also when we recur to them, and above all, how much we use when and what structure" [García, 1995

Art as Critical Public Pedagogy: A Qualitative Study of Luis Camnitzer and His Conceptual Art

Science.gov (United States)

Zorrilla, Ana; Tisdell, Elizabeth J.

2016-01-01

This qualitative study explored the connection between art and adult education for critical consciousness from the perspective and work of conceptual artist, Luis Camnitzer. The theoretical framework is grounded in the critical public pedagogy literature. Data collection methods included interviews with conceptual artist Luis Camnitzer and with…

Inclusión de Physalaemus riograndensis Milstead, 1960 en la batracofauna de Misiones, Argentina, y otros aportes para el conocimiento de su distribución (Amphibia: Anura: Leptodactylidae

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Chebez, Juan C.

1995-01-01

Full Text Available Physalaemus riograndensis Milstead, 1960. Rep. ARGENTINA, PROV.DE MISIONES, Dpto. Candelaria, Campo San Juan, 27° 25' S, 55° 40' W. 1 ejemplar. MACN número 34.646. Colector: E. Krauczuck.

Mathematical model of Boltzmann's sigmoidal equation applicable ...

Indian Academy of Sciences (India)

Ingeniería-Química, COARA—Universidad Autónoma de San Luis Potosí, Matehuala, San Luis Potosí, Mexico; Instituto Politécnico Nacional, CICATA Legaria, Calzada Legaria No. 694, Colonia Irrigación, 11500 Ciudad de México, Mexico; Departamento de Ingeniería Agrícola, DICIVA, Universidad de Guanajuato, Campus ...

Pramana – Journal of Physics | Indian Academy of Sciences

Indian Academy of Sciences (India)

Author Affiliations. M A Hernández-Ruíz1 2. Instituto de Física, Universidad Autónoma de San Luis Potosí, Av. Manuel Nava 6 Zona Universitaria 78290, San Luis Potosí SLP, México; Facultad de Ciencias Químicas, Universidad Autónoma de Zacatecas, Apartado Postal 585, 98060, Zacatecas, México ...

Keisri madrusest impeeriumi esivedurijuhiks / Lui Pikkov ; kommenteerinud Hans Treimann

Index Scriptorium Estoniae

Pikkov, Lui, 1935-2008

2009-01-01

Lui Pikkov oma onust Otto Piksarist (Pikkov), kes sündis Raplamaal Saunakülas, oli madruseks Nikolai II jahtlaeval Poljarnaja Zvezda, töötas vedurijuhina Eestis, oli Eesti NSV Ülemnõukogu saadik

“Vistiendo las ropas del santo”: Atributos afro en la personalidad de san Baltasar a través de algunos cargos devocionales en su culto en la Argentina

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Norberto Pablo Cirio

2003-12-01

Full Text Available Through its history, one can see traces of African roots in the popular cult of San Baltazar in Argentina. In spite of starting as an imposed devotion by the clergy and the Spanish Crown to the slaves in the middle of 18th Century, early the later could insert their own cultural traditions, producing a sort of sui generis syncretism.Now days, those traditions are present in some religious ceremonies, especially in the devotional area. So far they consider that he is the patron saint of the joy and fun, they celebrate him with music and dance, being some of them from black roots. In this paper I wish to analyze one of these religious principles. So far there isn't any difference between kings and goods, the divine personality has a bipolar behavior that comes to real in a unique entity movable-non movable, thing- human. In this way, being goods also kings and kings also goods, their divine and royal attributes are object of devotion and subordination by their faithful people-subjects. My hypothesis is that that black people could have applied this principle so far they knew that double characteristic of this saint: divine (he is a saint and royal (he is one of the three Wise Men, compatible with their ancestral believes.//Al revisar la historia del culto popular de San Baltazar en Argentina, es posible encontrar sus raíces africanas. A pesar de haber empezado como una devoción impuesta por el clero y la Corona española a mediados del siglo XVIII , los esclavos lograron insertar sus propias tradiciones culturales, produciendo así una suerte de sincretismo sui generis.Hoy en día, dicha tradición está presente en celebraciones religiosas, especialmente en el área devocional. A San Baltazar se le considera el patrón de la alegría y la diversión y sus celebraciones se realizan con música y bailes, algunos de ellos de raíces negras.En este trabajo me propongo analizar uno de los principios de este culto. Como no hay diferencias entre los

Transient electromagnetic soundings in the San Luis Valley, Colorado, near the Great Sand Dunes National Park and Preserve and the Alamosa National Wildlife Refuge (field seasons 2007, 2009, and 2011)

Science.gov (United States)

Fitterman, David V.

2017-06-13

Transient electromagnetic (TEM) soundings were made in the San Luis Valley, Colorado, to map the location of a blue clay unit as well as to investigate the presence of suspected faults. A total of 147 soundings were made near and in Great Sand Dunes National Park and Preserve, and an additional 6 soundings were made near Hansen Bluff on the eastern edge of the Alamosa National Wildlife Refuge. The blue clay is a significant hydrologic feature in the area that separates an unconfined surface aquifer from a deeper confined aquifer. Knowledge of its location is important to regional hydrological models. Previous analysis of well logs has shown that the blue clay has a resistivity of 10 ohm-meters or less, which is in contrast to the higher resistivity of sand, gravel, and other clay units found in the area, making it a very good target for TEM soundings. The top of the blue clay was found to have considerable relief, suggesting the possibility of deformation of the clay during or after deposition. Because of rift activity, deformation is to be expected. Of the TEM profiles made across faults identified by aeromagnetic data, some showed resistivity variations and (or) subsurface elevation relief of resistivity units, suggestive of faulting. Such patterns were not associated with all suspected faults. The Hansen Bluff profile showed variations in resistivity and depth to conductor that coincide with a scarp between the highlands to the east and the floodplain of the Rio Grande to the west.

Concepto de límite funcional : aprendizaje y memoria

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Tomás Ortega del Rincón

2013-05-01

Full Text Available El presente artículo forma parte de un proyecto de investigación sobre el concepto de límite funcional en el que se viene trabajando desde hace varios años. En este caso, se contrasta si la noción de límite ligada a la definición métrica perdura en la memoria de los alumnos más que la definición como aproximación óptima dada por Blázquez y Ortega en 2002. Se trata de un estudio empírico realizado con alumnos de Ingeniería de la Universidad Nacional de San Luis (Argentina, que en cursos anteriores habían estudiado ambas conceptualizaciones.

Nuevos registros de especies del género Eretmocerus (Hymenoptera: Aphelinidae, parasitoides de Trialeurodes vaporariorum y el complejo Bemisia tabaci (Hemiptera: Aleyrodidae en Argentina New records of species of the genus Eretmocerus (Hymenoptera: Aphelinidae, parasitoids of Trialeurodes vaporariorum and Bemisia tabaci complex (Hemiptera: Aleyrodidae in Argentina

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Silvia N. López

2008-06-01

Full Text Available El objetivo de este trabajo es dar a conocer nuevos registros y distribuciones de las especies del género Eretmocerus Haldeman, parasitoides de las dos especies de mosca blanca que tienen mayor importancia económica en cultivos hortícolas y ornamentales en Argentina. Una especie de Eretmocerus Haldeman fue hallada parasitando a Trialeurodes vaporariorum (Westwood en Santa Fe y Buenos Aires; por sus caracteres morfológicos, se encuentra en el grupo californicus, cercana a corni Haldeman, podría tratarse de una nueva especie. Asimismo, se amplía la distribución geográfica de Eretmocerus mundus Mercet, enemigo natural del complejo Bemisia tabaci (Gennadius, a las provincias de San Juan y Buenos Aires.The objective of this paper is to report new records of species of the genus Eretmocerus Haldeman, parasitoids of the most important whitefly pest species in vegetables and ornamental crops in Argentina. One species was found parasitizing Trialeurodes vaporariorum (Westwood in Santa Fe and Buenos Aires provinces and it is grouped into californicus group near corni Haldeman, due to its morphological characters. It could be a new species. The known distribution of Eretmocerus mundus Mercet, a parasitoid of Bemisia tabaci (Gennadius, is enlarged to include the provinces of San Juan and Buenos Aires of Argentina.

En el día del bibliotecario: Homenaje al Doctor Luis Ángel Arango

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Ernesto Delgado

1962-04-01

Full Text Available Palabras pronunciadas por el presidente de la Asociación Colombiana de Bibliotecarios, señor Ernesto Delgado, en el Salón de Actos de la Biblioteca Luis Ángel Arango, el sábado 28 de abril, Día del Bibliotecario, con motivo del homenaje que dicha corporación rindió a la memoria del doctor Luis Ángel Arango.

La violencia familiar ejercida en contra de los adolescentes mexicanos Domestic violence against Mexican teenagers

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Leticia Suárez

2006-08-01

Full Text Available OBJETIVO: Analizar la percepción de los estudiantes en torno a la violencia intrafamiliar. MÉTODOS: El estudio se realizó mediante una muestra aleatoria representativa (n=5,982 de estudiantes de secundaria y preparatoria de 13 a 19 años de edad en Chiapas y en San Luis Potosí, México, en el año 2003. Los estudiantes respondieron a un cuestionario de autollenado acerca de temas de educación sexual, sexualidad, embarazo y comportamientos de riesgo de los adolescentes y violencia intrafamiliar. Considerando el efecto del diseño muestral, se efectuó un análisis de regresión logística para ver asociación entre características sociodemoeconómicas y el riesgo de sufrir una agresión en el hogar. RESULTADOS: El análisis estadístico multivariado confirma la mayor vulnerabilidad femenina frente a la violencia familiar en ambas entidades federativas (Chiapas: RM=1.87, p=0.01; San Luis: RM=1.53, p=0.00. Asimismo, el que los estudiantes bebieran alcohol (Chiapas: RM=2.52, p=0.00; San Luis: RM=1.93, p=0.00 o consumieran drogas (Chiapas: RM=2.27, p=0.02; San Luis: RM=1.82, p=0.01 resultaron ser las dos variables más importantes que expusieron a los estudiantes a la violencia intrafamiliar. Se mostró que la interacción del consumo de alcohol con la edad de los estudiantes aumentó el riesgo de violencia. Así, los más jóvenes tuvieron un riesgo del 51% en Chiapas y del 73% en San Luis de sufrir una agresión de un familiar que los de mayor edad. CONCLUSIONES: Los adolescentes continúan siendo una de las poblaciones más vulnerables debido a su dependencia física, afectiva, económica y social hacia los adultos a su cargo. Esta encuesta es una de las primeras aproximaciones a la medición de violencia hacia los estudiantes.OBJECTIVE: To assess students' perception of domestic violence. METHODS: The study was carried out in a random sample representative (n=5,982 of high-school students aged between 13 and 19 years in Chiapas and San Luis

Libros en movimiento: Ediciones, traducciones y colecciones de viajeros a la Argentina

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Patricio Fontana

2011-11-01

Full Text Available La historia de la traducción de los textos escritos por viajeros extranjeros a la Argentina durante el siglo XIX está aún por hacerse. En este trabajo, exploramos las posibilidades de ese proyecto mediante el análisis del trabajo de cuatro traductores: Carlos Aldao, Juan Heller, Carlos Muzzio Sáenz Peña y José Luis Busaniche en la primera mitad del siglo XX. Además, ponemos en relación el trabajo realizado por esos traductores con las colecciones de libros que incorporaron a su catálogo las traducciones que aquéllos habían realizado. Como cierre, se evalúa cuál fue el destino de ellas en dos colecciones de libros más recientes: una, publicada en la década de 1980, y otra, contemporánea, cuyas entregas se iniciaron a fines de la década de 1990

El confesor regio Fray Luis Aliaga y la controversia Inmaculista

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Callado Estela, Emilio

2016-06-01

Full Text Available The present article analyses the participation of the aragonese dominican monk Luis Aliaga (Zaragoza, 1565-† Zaragoza, 1626, last confessor of Philip III and Inquiring general of the Hispanic Monarchy from 1619, in one of the most white hot theological controversies along the 17th century: the Immaculate Conception of the Virgin MaryEl presente artículo analiza la participación del dominico aragonés fray Luis Aliaga (Zaragoza, 1565-† Zaragoza, 1626 , último confesor de Felipe III e Inquisidor general de la Monarquía Hispánica desde 1619, en una de las controversias teológicas más candentes a lo largo del siglo XVII: la Inmaculada Concepción de la Virgen María.

Vida y obra de Luis Jiménez Moreno (1929-2007

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Antonio Jiménez García

2008-10-01

Full Text Available Luis Jiménez Moreno passed away on 27 of October, 2007, 77 years old. For the last 30 years he was professor at Universidad Complutense de Madrid. He became Full Professor. He had studied in Salamanca, Roma, Valencia and München. He got a Ph. Degree whith a tesis about Nietzsche`s Antropological Thought by leading of José Luis López Aranguren. He was High School Teacher in Andujar, Ávila and Badalona; after he was professor at Universities of Barcelona and Madrid. This article develops information about his life and his works: books, articles, essays, conferences, papers to Congress, Symposios, Scientic meetings…

Vertical-axis rotations and deformation along the active strike-slip El Tigre Fault (Precordillera of San Juan, Argentina) assessed through palaeomagnetism and anisotropy of magnetic susceptibility

Science.gov (United States)

Fazzito, Sabrina Y.; Rapalini, Augusto E.; Cortés, José M.; Terrizzano, Carla M.

2017-03-01

Palaeomagnetic data from poorly consolidated to non-consolidated late Cenozoic sediments along the central segment of the active El Tigre Fault (Central-Western Precordillera of the San Juan Province, Argentina) demonstrate broad cumulative deformation up to 450 m from the fault trace and reveal clockwise and anticlockwise vertical-axis rotations of variable magnitude. This deformation has affected in different amounts Miocene to late Pleistocene samples and indicates a complex kinematic pattern. Several inherited linear structures in the shear zone that are oblique to the El Tigre Fault may have acted as block boundary faults. Displacement along these faults may have resulted in a complex pattern of rotations. The maximum magnitude of rotation is a function of the age of the sediments sampled, with largest values corresponding to middle Miocene-lower Pliocene deposits and minimum values obtained from late Pleistocene deposits. The kinematic study is complemented by low-field anisotropy of magnetic susceptibility data to show that the local strain regime suggests a N-S stretching direction, subparallel to the strike of the main fault.

La arquitectura de la primera modernidad en San Miguel de Tucumán, Argentina

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Susana Villavicencio

2013-12-01

A partir del estudio de material planimétrico y fotográfico de los ejemplos de la Primera Modernidad (1935-1950 en San Miguel de Tucumán, se elaboró un cuerpo de conocimiento que se confrontó con datos de la historia local, dando como resultado el registro de un período peculiar de la historia de la ciudad. Este conjunto de obras, ubicadas en su mayoría en el área central de San Miguel de Tucumán, conforma un patrimonio arquitectónico no reconocido que debe ser difundido y merece ser valorado por la sociedad con el objeto de ser preservado para las futuras generaciones. 

Sedimentología e icnología de la formación río Mayer, cuenca Austral, provincia de Santa Cruz, Argentina

OpenAIRE

Richiano, Sebastián

2012-01-01

El presente trabajo de tesis doctoral se centró en el estudio sedimentológico e icnológico de las sedimentitas marinas de la Formación Río Mayer, depositada en el Cretácico inferior de la Cuenca Austral. Dicha cuenca se ubica en el extremo suroccidental de la Patagonia abarcando un sector de Sudamérica que incluye el sur de Argentina y Chile, y representa una de las más importantes cuencas productoras de hidrocarburos de Argentina. El área de estudio contempla la región entre los lagos San Ma...

Luis Felipe Fajardo (1927-2013. Su vida y su obra

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Hernando Sarasti Obregón

2017-09-01

Full Text Available FragmentoTeniendo en cuenta los grandes logros de este médico colombiano, en la Academia Nacional de Medicina se le rindió un homenaje a su memoria. Los ponentes de la sesión fueron los académicos Sarasti y Patiño. Por lo importante del tema, hemos querido incluir sus presentaciones en este artículo de la revista MEDICINA. El tema tocado por el doctor Sarasti fue el siguiente:El 5 de julio de 2013 falleció en los Estados Unidos en la ciudad de Palo Alto, California, el patólogo colombiano Dr. Luis Felipe Fajardo Lobo- Guerrero. Había nacido en Bogotá el 23 de enero de 1927 en el hogar de Don Luís Antonio Fajardo Suárez y Doña María Teresa Lobo-Guerrero.Se graduó como Bachiller en el Colegio de La Salle en 1944, hizo su medicatura rural en Restrepo (Meta y recibió el título de Médico en la Facultad de Medicina de la Universidad Nacional de Colombia en 1952. Inició su entrenamiento en Patología en el Hospital San Juan de Dios de Bogotá y lo continuó en los Estados Unidos en la Universidad de Yale entre 1954 y 1958. Ese mismo año fue certificado por el American Board of Pathology, contrajo matrimonio con Lorela Enterline y regresó a Colombia a ejercer su especialidad en el Hospital de la Samaritana.En noviembre de 1959 volvió a los Estados Unidos para ocupar un “locum tenens” en Connecticut en el New Britain General Hospital y regresó nuevamente a Colombia en octubre de 1960 como Profesor Asistente de Patología de la Universidad Nacional al mismo tiempo que fue Jefe del Laboratorio Clínico del Hospital San Juan de Dios.El Dr. Fajardo y el suscrito formábamos parte de la generación de médicos colombianos que hacia mediados del siglo XX viajamos a los Estados Unidos para especializarnos en diversas ramas de la Medicina.

La identidad lingüística argentina a través de Borges y Puig

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Thon, Sonia

2010-02-01

Full Text Available The identity of the Argentinian linguistic expression has been studied in depth by many literary critics and linguists who demonstrated the close relationship that exists between language, ideology, and socio-historic context; especially, when incorporating the concept of oral and colloquial language to the narrative discourse. We are basing this paper on the studies of authors such as: Beatriz Sarlo, Walter Bruno Berg, Wolf Oesterreicher, Maria Zulema Kulikowsi, and others in order to situate two Argentinian writers, Jorge Luis Borges and Manuel Puig, within their historic period in order to reveal how their personal and social anxieties impacted the perception of their work as representative of the Argentinian language.

La identidad de la expresión lingüistica argentina ha sido estudiada a fondo por numerosos críticos literarios y lingüistas que demostraron la estrecha relación que existe entre lengua, ideología y contexto socio-histórico, especialmente al incorporarse al discurso narrativo el concepto de oralidad y “coloquialidad”. En este ensayo nos basaremos en estudios de autores tales como Beatriz Sarlo, Walter Bruno Berg, Wolf Oesterreicher, María Zulema Kulikowski, entre otros, para situar a dos escritores argentinos, Jorge Luis Borges y Manuel Puig, dentro de su época y revelar cómo sus ansiedades personales y sociales impactaron la percepción de su obra como representativa de lo que se considera el lenguaje argentino.

75 FR 20608 - Notice of Re-Designation of the Service Delivery Area for the Cowlitz Indian Tribe

Science.gov (United States)

2010-04-20

... City (Public Law 88-358). \\5\\ Entire State of California, excluding counties of Alameda, Contra Costa..., Napa, San Benito, San Joaquin, San Luis Obispo, Santa Cruz, Solano, Stanislaus, and Ventura, is...

Exposiciones 1958, presentadas en la Biblioteca Luis Ángel Arango

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Boletín Cultural y Bibliográfico Banco de la República

1958-12-01

Full Text Available Se describe el desarrollo de la actividades culturales del año 1958 correspondientes a las exposiciones de arte presentadas en la Biblioteca Luis Ángel Arango del Banco de la República.

New species of Parapharyngodon (Nematoda: Pharyngodonidae) in Phymaturus spp. (Iguania: Liolaemidae) from Argentina.

Science.gov (United States)

Ramallo, Geraldine; Bursey, Charles; Castillo, Gabriel; Acosta, Juan Carlos

2016-09-01

Parapharyngodon sanjuanensis sp. nov. (Nematoda: Pharyngodonidae) from the large intestines of Phymaturus punae and Phymaturus williamsi (Squamata: Liolaemidae) from province of San Juan, Argentina, is described and illustrated. Parapharyngodon sanjuanensis sp. nov. is the 54th species assigned to the genus and the 8th from the Neotropical region. It differs from other species in the genus in that males possess 8 caudal papillae, 6 of which are large and pedunculate, 2 are small, almost inconspicuous; anterior lip echinate, posterior lip bilobate; females possess prominent vulva and short stiff tail spike.

Using {sup 222}Rn as a tracer of geodynamical processes in underground environments

Energy Technology Data Exchange (ETDEWEB)

Valladares, D.L. [GEA, Instituto de Matemática Aplicada San Luis (IMASL), Universidad Nacional de San Luis, Consejo Nacional de Investigaciones Científicas y Técnicas, Ej. de los Andes 950, D5700HHW San Luis (Argentina); Silva, A.A.R. da [Instituto de Física, Universidade de São Paulo, P.O.Box 66318, 05314-970, São Paulo, SP (Brazil); Serviço Especializado em Engenharia de Segurança e Medicina do Trabalho, Departamento de Saúde, Universidade de São Paulo, Rua da Reitoria, 109, 05508-900, São Paulo, SP (Brazil); Lacerda, T. [Instituto de Física, Universidade Federal Fluminense, Av. Gal Milton Tavares de Souza, s/n" o, Gragoatá, 24210-340, Niterói, RJ (Brazil); Anjos, R.M., E-mail: meigikos@if.uff.br [Instituto de Física, Universidade Federal Fluminense, Av. Gal Milton Tavares de Souza, s/n" o, Gragoatá, 24210-340, Niterói, RJ (Brazil); Rizzotto, M.; Velasco, H.; Rosas, J.P. de [GEA, Instituto de Matemática Aplicada San Luis (IMASL), Universidad Nacional de San Luis, Consejo Nacional de Investigaciones Científicas y Técnicas, Ej. de los Andes 950, D5700HHW San Luis (Argentina); Tognelli, G. [Departamento de Geología, Universidad Nacional de San Luis, Ej. de los Andes 950, D5700HHW San Luis (Argentina); and others

2014-01-01

Radon levels in two old mines in San Luis, Argentina, were measured and analyzed, with the aim to assess the potential use of this radioactive noble gas as a tracer of geological processes in underground environments. La Carolina gold mine and Los Cóndores tungsten mine are today used as tourism mines. CR-39 nuclear track detectors were used for this purpose. Measurements were performed during both winter and summer seasons. The findings show that in these environments, significant radon concentrations are subject to large seasonal fluctuations, due to the strong dependence on natural ventilation with the outside temperature variations. For both mines, higher concentration values of {sup 222}Rn were observed in summer than in winter; with an extreme ratio of 2.5 times between summer and winter seasons for Los Cóndores mine. The pattern of radon transport inside La Carolina mine revealed, contrary to what was believed, that this mine behaves as a system with two entrances located at different levels. However, this feature can only be observed in the winter season, when there is a marked difference between the inside and outside temperatures of the mine. In the case of Los Cóndores mine, the radon concentration pattern distribution is principally established by air current due to chimney-effect in summer and winter seasons. In both cases, the analyses of radon pattern distribution appear as a good method to trace air currents, and then localize unknown ducts, fissures or secondary tunnels in subterranean environments. - Highlights: • {sup 222}Rn levels in two old mines in San Luis, Argentina • CR-39 nuclear track detectors were used for this purpose • higher concentration values of {sup 222}Rn were observed in summer than in winter • radon pattern distribution appear as a good method to trace air currents • it localizes unknown ducts, fissures or secondary tunnels in subterranean environments.

Evaluation of total phenol pollution in water of San Martin Canal from Santiago del Estero, Argentina.

Science.gov (United States)

Acosta, C A; Pasquali, C E López; Paniagua, G; Garcinuño, R M; Hernando, P Fernández

2018-05-01

Santiago del Estero is a province located in northwestern Argentina. The Dulce River is used for irrigation through a vast network of channels and ditches, including the San Martin Canal (SMC), which crosses the capital city of Santiago del Estero. This canal's water is used for drinking, as well as recreational use for the general population. However, this river has been seriously polluted for several decades. The present study focuses on the identification and the quantification of the water pollution levels of total phenols in the SMC according to the seasonal periods. Water samples from various areas of the canal in different months of the year, extending from December to September, were collected for analysis. Additionally, the concentration of total dissolved solids (TDS), chlorides, sulphates, nitrites and organic matter, as well as water hardness and alkalinity, were analysed in order to conduct a more complete study of the contamination of this area. The results showed a worrying total phenol concentration that exceeded the limit set by Argentine legislation for drinking water, as well as water for recreational use (5 μg/L). The total phenol (TP) concentration was directly determined by a molecular absorption spectroscopy method based on a new flow injection analysis system (FIA). Under the selected experimental conditions, the detection and quantification limits were 0.0490 and 0.1633 μg/mL, respectively. The developed method provides a number of improvements related to the speed of analysis, the restricted consumption of the reagents and sample volumes and the unnecessary sample treatment that contribute to environmentally friendly analytical chemistry. The results showed that TP make a significant contribution in the SMC pollution, especially during the months of April (400 ± 110 μg/L) and September (240 ± 20 μg/L). A high sulphate concentration that was higher than the limit allowed by the legislation was also found. Copyright �

Propiedad y empresa minera en la Mesa centro-norte de México Guanajuato, San Luís Potosí y Zacatecas, 1880-1910 /

OpenAIRE

Gámez Rodríguez, Moisés

2005-01-01

Consultable des del TDX Títol obtingut de la portada digitalitzada En la tesis se abordan los procesos de integración y diferenciación sobre la propiedad y la empresa en la Mesa Centro-norte de México (Guanajuato, San Luis Potosí y Zacatecas) circunscritos en el contexto nacional e internacional, durante el periodo de 1880-1910. La hipótesis general es que la demanda internacional de metales preciosos y de minerales industriales estimuló la producción, la creación de un marco institucio...

RIQUEZAS QUE PENAN, HOMBRES OSCUROS Y MUJERES PÁJARO ENTRE “LAS COSAS DE INDIOS”: RELACIONES “OTRAS” ASECHANDO LOS SENTIDOS DE LA EXPERIENCIA MODERNA EN EL NORTE DE SAN JUAN, REPÚBLICA ARGENTINA

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Ivana Carina Jofré

2013-10-01

Full Text Available Inside de social history of Northern San Juan, Argentina, the inhabitants of the Jáchal and Iglesia, have been subjects a political colonial and governmental projects that have impressed in the local memory its footprints through time. By this reason, native material culture produced in the past for ancient inhabitants, produces in the present symbolical representations that subvert the established order. But these symbolical representations not always are lacking of ambiguities, they have some cracks that allow knowing local interpretations about the past. These interpretations promote local senses that are in relationship with the territory and with temporal memories related with social and cultural identities that have been change through the time, even cause by violence and traumatic experiences of exclusion and inclusion This paper works about theses process

Proyectos, debates y críticas en torno a la vivienda obrera en el Noroeste argentino. San Salvador de Jujuy (1930-1945

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Jerez, Marcelo

2014-12-01

Full Text Available Resumen El presente artículo se inserta dentro del conjunto de estudios que analizan a la vivienda obrera en la Argentina. Tiene como objetivo examinar los diseños y programas habitacionales elaborados durante los años previos a la irrupción del primer peronismo en la ciudad capital de la provincia de Jujuy: San Salvador de Jujuy. En esta tarea se presta atención a los debates, críticas y revisiones en torno a los diversos proyectos de vivienda obrera en un distrito del Noroeste argentino. Asimismo se pretende destacar las líneas de encuentro y particularidades de estos programas en relación a lo acontecido en otros puntos del país. Abstract This article is inserted into a set of studies that analyze the workers' housing in Argentina. It aims to examine the designs and housing programs developed during the years before the emergence of the Peronismo in the capital city of the province of Jujuy: San Salvador de Jujuy. The attention is focused in the discussions and reviews around the different projects of working class houses in a district of the Northwestern Argentina. It also pretends to give importance to similar lines and particularities of these programs related to other areas of the country.

El oratorio de San Felipe Neri y la controversia sobre las comedias en la Valencia del siglo XVII

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Callado Estela, Emilio

2011-06-01

Full Text Available The present article analyzes some of the religious implications deriving from the famous controversy about the legality or illegality of theatre in the 17th century and in the city of Valencia. The question arose from an episode in which Don Luis Crespi de Borja was directly implicated. Crespi was the founder of the Oratory of Saint Philip Neri in the Valencian region and a persistent fighter against comedy. As a consequence of his position in this affair members of the Oratory were pursued by other ecclesiastical sectors favouring theatre.

El presente artículo analiza algunas de la implicaciones religiosas de la famosa controversia sobre la licitud o ilicitud del teatro, en el siglo XVII y en la ciudad de Valencia, a partir de un episodio protagonizado por don Luis Crespí de Borja, fundador del Oratorio de San Felipe Neri en tierras valencianas y consumado azote de las comedias, cuyo posicionamiento en este particular valdría a los oratorianos la persecución por parte de otros sectores eclesiásticos partidarios del arte escénico.

Dificultades en el aprendizaje de la metodología de la investigación

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MARIA AIELLO-SINDONI

2009-01-01

Full Text Available El objetivo de este trabajo es identificar y comprender las dificultades teóricas y conceptuales que presentan los alumnos en el aprendizaje de la Metodología de la investigación. El diseño metodológico es cualitativo, orientado por una lógica inductiva. Los participantes fueron alumnos que cursaban Metodología de la Investigación, en la Universidad Nacional de San Luis, Argentina. Las técnicas de recolección de información fueron entrevistas, observación participante e instancias colectivas. Se usó el método comparativo constante para el análisis de la información. Se encontró que la fragilidad del conocimiento es una de las dificultades para abordar los nuevos contenidos.

DE LAS ROCALLOSAS A LOS ANDES: EL EXPERIMENTO DE ESCUELAS CHARTER EN EL CONTEXTO POLÍTICO ARGENTINO

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Mauro Carlos Moschetti

2016-03-01

Full Text Available RESUMEN: En 1999, se aprobó en la Provincia de San Luis (Argentina la creación de las denominadas 'Escuelas Experimentales Autogestionadas', inspiradas en el modelo charter norteamericano aunque con importantes diferencias. Este artículo describe la experiencia y explora las circunstancias por las que el proyecto fue desarticulado y abandonado prematuramente. El estudio incluyó un profundo análisis documental y entrevistas con referentes del proyecto, ex-funcionarios del Ministerio de Educación e integrantes de las asociaciones adjudicatarias. Se encontraron profundas incompatibilidades entre los principios rectores del proyecto - democratización, cooperativismo, autonomía y pluralidad -, las prácticas del sistema político provincial, y las estructuras y lógicas de poder tradicionales organizadas a nivel nacional.

JORGE LUIS BORGES – SERGIO PITOL: INFLUENCES, SYMMETRIES AND LITERARY TRANSFERENCES JORGE LUIS BORGES – SERGIO PITOL: INFLUENCIAS, SIMETRÍAS Y TRANSFERENCIAS LITERARIAS

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Alejandro Hermosilla Sánchez

2011-02-01

Full Text Available In the entire Pitol‘s work, there is a continuous masquerade and an ungovernable fusion of the forces that link his life and his literature that has dislocated absolutely the "certainties" that we can get to own. Above all, for having been capable to improve the autobiographic genre helped by his way to understand, as Jorge Luis Borges and Marcel Schowb did, the reality as unverified and fiction as one more of many possibilities of what is "real". In this article, we will try to go deeper into the "discredit of the autobiographic and critical genre made by Sergio Pitol in La trilogía de la memoria thanks to the influence of Jorge Luis Borge´s literature.En toda la obra de Pitol hay un enmascaramiento continuo y una fusión ingobernable de las fuerzas que vinculan su vida y su literatura que ha terminado por dislocar absolutamente las "certezas" que podemos a llegar a poseer sobre ambas. Ante todo, por haber sido capaz de dar una nueva vuelta de tuerca más al género autobiográfico gracias a su manera de entender, tal y como hicieron Jorge Luis Borges y el francés Marcel Schwob, la realidad como inverificable y la ficción como una más de las muchas posibilidades de lo "real". En este artìculo, intentaremos profundizar en la desacreditación del género autobiográfico y crítico hecho por Pitol en La trilogía de la memoria o Domar a la divina garza gracias a la influencia de la literatura de Borges.

Analysis of past and future dam formation and failure in the Santa Cruz River (San Juan province, Argentina)

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Penna, Ivanna M.; Derron, Marc-Henri; Volpi, Michele; Jaboyedoff, Michel

2013-03-01

Around 11.5 ∗ 106 m3 of rock detached from the eastern slope of the Santa Cruz valley (San Juan province, Argentina) in the first fortnight of January 2005. The rockslide-debris avalanche blocked the course, resulting in the development of a lake with maximum length of around 3.5 km. The increase in the inflow rate from 47,000-74,000 m3/d between April and October to 304,000 m3/d between late October and the first fortnight of November, accelerated the growing rate of the lake. On 12 November 2005 the dam failed, releasing 24.6 ∗ 106 m3 of water. The resulting outburst flood caused damages mainly on infrastructure, and affected the facilities of a hydropower dam which was under construction 250 km downstream from the source area. In this work we describe causes and consequences of the natural dam formation and failure, and we dynamically model the 2005 rockslide-debris avalanche with DAN3D. Additionally, as a volume ~ 24 ∗ 106 m3of rocks still remain unstable in the slope, we use the results of the back analysis to forecast the formation of a future natural dam. We analyzed two potential scenarios: a partial slope failure of 6.5 ∗ 106 m3 and a worst case where all the unstable volume remaining in the slope fails. The spreading of those potential events shows that a new blockage of the Santa Cruz River is likely to occur. According to their modeled morphometry and the contributing watershed upstream the blockage area, as the one of 2005, the dams would also be unstable. This study shows the importance of back and forward analysis that can be carried out to obtain critical information for land use planning, hazards mitigation, and emergency management.

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)

Arquitectura estatal moderna en el eje cívico de la ciudad de San Juan, Argentina
Modern State Architecture in the Civic Axis of the City of San Juan, Argentina
Arquitetura Estatal Moderna no Eixo Civico da Cidade de San Juan, Argentina

OpenAIRE

María Eugenia Rosés; Esther Solera; María Elvira Sentagne; Militza Laciar

2012-01-01

Este artículo expone cómo influyen las ideas del Movimiento Moderno en la arquitectura estatal edificada en la ciudad de San Juan, durante el proceso de reconstrucción posterior al terremoto de 1944, en el marco de los acontecimientos sociopolíticos, las ideas arquitectónicas y las técnicas de la época. Se centra en el estudio de la avenida Paseo Central, eje cívico-institucional, inexistente en la cuadrícula fundacional y asiento de los principales edificios públicos posteriores al terremoto...

Molecular phylogeography of the Chagas' disease vector Triatoma infestans in Argentina

Science.gov (United States)

Pérez de Rosas, A R; Segura, E L; García, B A

2011-01-01

Triatoma infestans is the main vector of Chagas' disease in South America between latitudes 10°S and 46°S. A multilocus microsatellite data set of 836 individuals from 27 populations of T. infestans, from all its range of distribution in Argentina, was analyzed. Our results favor the hypothesis of two independent migration events of colonization in Argentina and secondary contacts. The majority of the populations of the western provinces of Catamarca, La Rioja, San Juan and the west of Cordoba province, had almost no shared ancestry with the rest of the populations analyzed. Probably those populations, belonging to localities close to the Andean region, could have been established by the dispersal line of T. infestans that would have arrived to Argentina through the Andes, whereas most of the rest of the populations analyzed may have derived from the dispersal line of T. infestans in non-Andean lowlands. Among them, those from the provinces of Formosa, Chaco, Santiago del Estero and Santa Fe shared different percentages of ancestry and presented lower degree of genetic differentiation. The migratory movement linked to regional economies and possibly associated with passive dispersal, would allow a higher genetic exchange among these populations of T. infestans. This study, using microsatellite markers, provides a new approach for evaluating the validity of the different hypotheses concerning the evolutionary history of this species. Two major lineages of T. infestans, an Andean and non-Andean, are suggested. PMID:21224874

Molecular phylogeography of the Chagas' disease vector Triatoma infestans in Argentina.

Science.gov (United States)

Pérez de Rosas, A R; Segura, E L; García, B A

2011-07-01

Triatoma infestans is the main vector of Chagas' disease in South America between latitudes 10°S and 46°S. A multilocus microsatellite data set of 836 individuals from 27 populations of T. infestans, from all its range of distribution in Argentina, was analyzed. Our results favor the hypothesis of two independent migration events of colonization in Argentina and secondary contacts. The majority of the populations of the western provinces of Catamarca, La Rioja, San Juan and the west of Cordoba province, had almost no shared ancestry with the rest of the populations analyzed. Probably those populations, belonging to localities close to the Andean region, could have been established by the dispersal line of T. infestans that would have arrived to Argentina through the Andes, whereas most of the rest of the populations analyzed may have derived from the dispersal line of T. infestans in non-Andean lowlands. Among them, those from the provinces of Formosa, Chaco, Santiago del Estero and Santa Fe shared different percentages of ancestry and presented lower degree of genetic differentiation. The migratory movement linked to regional economies and possibly associated with passive dispersal, would allow a higher genetic exchange among these populations of T. infestans. This study, using microsatellite markers, provides a new approach for evaluating the validity of the different hypotheses concerning the evolutionary history of this species. Two major lineages of T. infestans, an Andean and non-Andean, are suggested.

José Luis Hidalgo, poeta de los muertos

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Román GARCÍA-CAMINO MATEOS

2009-11-01

Full Text Available RESUMEN: La figura de José Luis Hidalgo (Torres, 1919-Madrid, 1947, poeta y pintor, ha de tomar un nuevo relieve como representante de una generación de autores montañeses que surgió en torno a los años cuarenta. Destaca en su breve obra, al igual que su corta pero intensa vida, la extrema sensibilidad de su poesía en el uso de imágenes, metáforas que acercan sus versos hacia el terreno de lo plástico y sensorial. Las preocupaciones son de profunda raigambre existencialista, al ser nuestro poeta un joven lector de pensadores como Nietzsche, Schopenhauer o Unamuno; es con este último con el que guarda una ineludible afinidad de ideas. La búsqueda que emprende José Luis Hidalgo hacia la verdad se sitúa dentro de una metafísica trascendente y una vertiente religiosa muy significativa, en un diálogo sincero y directo con Dios. Contrasta la sencillez formal de su poesía con el complejo sistema simbólico de elementos naturales, espacios... en los que se mueve dentro del marco fluctuante entre la tradición y la vanguardia; encontramos resonancias que nos llevan desde el romanticismo becqueriano, pasando por el simbolismo, hasta los movimientos vanguardistas —sobre todo el surrealismo— y el grupo poético del 27. La obra de Los muertos supone un momento culmen del dilatado periodo de posguerra.ABSTRACT: The literary figure of José Luis Hidalgo (Torres, 1919-Madrid, 1947, both a poet and a painter, achieves renown once more as a representative of a generation of writers from Cantabria (in the north of Spain which came to light around the 1940's. His work, as brief as his short but intense life, is remarkable for the great feeling of his poetry in the use of imagery and metaphors, which draw his verse near the domain of the vivid and sensorial. His concerns have deep existentialist roots; as a young man the poet was a devoted reader of great thinkers such as Nietzsche, Schopenhauer or Unamuno; it is the latter with whom he has an

Comparación de los productos de TSM L3 generados a partir de los sensores AVHRR y MODIS frente al Golfo San Jorge, Argentina

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L. Allega

2017-12-01

Full Text Available Desde principios de la década de los 80, el sensor AVHRR a bordo de los satélites NOAA ha provisto de estimaciones de la temperatura de la superficie del mar (TSM a la comunidad científica en general. Hacia finales de la década de los 90, surge una nueva generación de radiómetros que combinan una mayor gama de mediciones espectrales con mejoras en la tecnología, como lo es el sensor  MODIS a bordo de los satélites Terra y Aqua. El desarrollo de este último sensor se basó en los años de trayectoria de la serie NOAA/AVHRR. La comprensión de la relación entre los productos derivados de distintos sensores es fundamental para el seguimiento continuo a largo plazo de cualquier variable y de la construcción de serie de tiempos combinados. El objetivo del presente trabajo fue realizar una comparación de los valores mensuales de TSM para el período 2003-2006 calculadas a partir de datos de la serie NOAA/AVHRR vs Aqua/MODIS sobre un sector de la Plataforma Continental Argentina frente al Golfo San Jorge. El análisis de las isotermas muestra un patrón de distribución similar durante todos los meses para ambos sensores. El coeficiente de correlación de Pearson tanto en el análisis estacional como mensual fue alto (> 0,8. El análisis comparativo de la temperatura medida en ambos sensores muestra que los productos de TSM son similares, teniendo en cuenta que la diferencia media de temperatura entre ambos sensores es inferior a 0,5ºC. Por lo tanto, para el estudio de largas series de tiempo de TSM en la plataforma continental argentina se puede utilizar en forma continua las mediciones de Aqua/MODIS, cuando ya no se disponen las de NOAA/AVHRR.

Luis Alvarez - a personal approach to physics

Energy Technology Data Exchange (ETDEWEB)

Anon.

1988-12-15

One of the major pioneer figures and outstanding personalities of particle physics, Luis Alvarez, died on 1 September. In addition to his numerous particle physics achievements, he became famous for his ventures in archaeology, palaeontology, and astronomy, and for his inventions. As a tribute to this remarkable man, we publish here some extracts from 'Adventures in Nuclear Physics', given as the 1962 University of California Faculty Research Lecture. According to custom, this presentation is a personalized account rather than an impersonal scientific discourse.

Pionero de la comunicación (Entrevista a Luis Ramiro Beltrán

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Juan Braun

2015-01-01

Full Text Available Luis Ramiro es, sin lugar a dudas, el comunicador más reconocido de la América Latina. Sus ideas circulan libremente en el Norte y en el Sur. Es un líder. Pero pocos saben de su vida. Los esfuerzos que tuvo que hacer para "llegar". De sus primeros años de periodista bohemio, su lucha en la Universidad del Estado de Michigan para sobrevivir a las exigencias de Berlo, Kumata, Rogers y Miller. Y la importancia fundamental en todo esto de su madre, Mama Becha. Nos conocimos allá lejos, en Michigan. Luis Ramiro se graduaba de Doctor, terminaba su "vía crucis". El mío apenas comenzaba. Las ideas de Luis, su diagnóstico de la comunicación en América Latina, tuvieron un profundo impacto en mí que se hizo sentir años después. ¡Gracias! ¡y también alcancé a probar las empanadas de Mama Becha! El Dr. Beltrán habla sobre su vida y el pasado, presente y futuro de la comunicación en América Latina.

Crustal structure of the Central Precordillera of San Juan, Argentina (31°S) using teleseismic receiver functions

Science.gov (United States)

Ammirati, Jean-Baptiste; Alvarado, Patricia; Perarnau, Marcelo; Saez, Mauro; Monsalvo, Guillermo

2013-10-01

The subduction of the Nazca plate under the South American plate around 31°S is characterized by flat slab geometry. The (Chilean) Pampean flat slab of Argentina associated with the subduction of the Juan Fernandez ridge lies in a region of a series of foreland uplifts corresponding to the thin-skinned Precordillera and basement cored Sierras Pampeanas ranges. The SIEMBRA project deployed 40 broadband stations in 2008-2009 in both the Precordillera and the Sierras Pampeanas with the aim to foster the understanding of the entire central Andean flat slab region. One of the SIEMBRA station (DOCA) located on the western flank of Sierra de la Invernada in the Central Precordillera appears particularly appropriate to study the crustal structure and eventually detect discontinuities related to terranes establishment. We thus performed a receiver function analysis using teleseismic data recorded at the DOCA station during the SIEMBRA project and from October 2011 to June 2012 using a broadband UNSJ (National University of San Juan) seismic station with the purpose to obtain crustal images with details of the intracrustal structure consistent with a mechanism that could explains both the observed earthquake depths and the uplift pattern in the Central Precordillera. Our results show that the Moho beneath the Precordillera lies at a depth of about 66 km. The Moho signal appears diminished and behaves irregularly as a function of azimuthal orientations. Although this observation could be the result of an irregular geometry it also correlates with the hypothesis of partial eclogitisation in the lower crust. Two mid-crustal discontinuities have also been revealed. The shallower one could correspond to a décollement level between the Precordilleran strata and the Cuyania basement at 21 km depth. The deeper one which the presence has been matched with a sharp decrease of the crustal seismic activity drove us to the hypothesis of a major change in crustal composition at 36 km

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.

Volcanic Ash Hazards and Risk in Argentina: Scientific and Social Collaborative Approaches.

Science.gov (United States)

Rovere, E. I., II; Violante, R. A.; Vazquez Herrera, M. D.; Martinez Fernandez, M. D. L. P.

2015-12-01

Due to the absence of alerts or volcanic impacts during 60 years (from 1932, Quizapu-Descabezado Grande -one of the major eruptions of the XX Century- until 1991 Hudson eruption) there was mild remembrance of volcanic hazards in the collective memory of the Argentina citizens. Since then and until April 2015, the social perception changed according to different factors: age, location, education, culture, vulnerability. This variability produces a maze of challenges that go beyond the scientific knowledge. Volcanic health hazards began to be understood in 2008 after the eruption of Chaiten volcano. The particle size of ashfall (concern on epidemiological monitoring. In 2011 the volcanic complex Puyehue - Cordon Caulle eruption produced ashfall through plumes that reached densely populated cities like San Carlos de Bariloche and Buenos Aires. Farther away in South Africa and New Zealand ash plumes forced airlines to cancel local and international flights for several weeks. The fear of another eruption did not wait long when Calbuco volcano started activity in April 2015, it came at a time when Villarrica volcano was also in an eruptive phase, and the SERNAGEOMIN Chile, through the Observatory OVDAS of the Southern Andes, faced multiple natural disasters at the same time, 3 volcanoes in activity, lahars, pyroclastic flows and floods in the North. In Argentina, critical infrastructure, farming, livestock and primary supplies were affected mainly in the western region. Copahue volcano, is increasing unstability on seismic and geochemistry data since 2012. Caviahue resort village, distant only 8 Km. from the active vent happens to be a high vulnerable location. In 2014 GEVAS (Geology, Volcanoes, Environment and Health) Network ARGENTINA Civil Association started collaborative activities with SEGEMAR and in 2015 with the IAPG (Geoethics, Argentina), intending to promote Best Practices in volcanic and geological hazards. Geoscientists and the volcano vulnerable population

Herpetofauna de la provincia de San Juan, Argentina: lista comentada y distribución geográfica

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Ávila, Luciano Javier

1998-01-01

Full Text Available El conocimiento de la fauna de anfibios y reptiles de la Provincia de San Juan es fragmentario e incompleto. En razón de ello, el objetivo de este trabajo es presentar una lista de las especies de anfibios y reptiles registrados para San Juan. La información se relevó a partir de la revisión de colecciones de referencia y a partir de revisiones bibliográficas. Se establece un registro de 59 especies y se presentan las localidades de colección de las mismas. The knowledge of amphibians and reptiles of San Juan Province is characterized by being fragmentary and incomplete. For that reason, the main purpose of this work is to present a list of the amphibians and reptiles of the province. The sources of information are a revision of herpetological collections from national and regional museums and bibliographic research. We establish a list of 59 species and we present geographic localities of collections.

Chasing Personal Meaning: Pedagogical Lessons through Luis Rodriguez's "Always Running"

Science.gov (United States)

Theisen-Homer, Victoria

2014-01-01

In this autobiographical narrative, the author recounts her experiences teaching the novel "Always Running" by Luis Rodriguez with her English classes at a high school in a gang-heavy area. When she first started teaching, this teacher struggled to engage students. One particularly disruptive student requested to read "Always…

Análisis de los factores de protección a la infancia, de algunas familias en situación de vulnerabilidad, de la Institución Educativa Luis Carlos Galán Sarmiento del Municipio de Itagüí

OpenAIRE

Londoño Cardona, Magda Yamile; Castillo Colón, Gabriel Moisés

2012-01-01

Ubicación en Biblioteca USB Medellín (San Benito): CD-2618t .-- Grupo de Investigación Interdisciplinario de Estudios Pedagógicos (GIDEP).-- Línea de Investigación: Infancia.-- Área: Infancia.-- Tema: Políticas públicas El proyecto consiste en un análisis acerca de los factores de protección que subyacen en las dinámicas de algunas familias de la comunidad de la Institución Educativa Luis Carlos Galán Sarmiento del municipio de Itagüí en el departamento de Antioquia, Colombia. En sus voces...

Luis Alvarez - a personal approach to physics

International Nuclear Information System (INIS)

Anon.

1988-01-01

One of the major pioneer figures and outstanding personalities of particle physics, Luis Alvarez, died on 1 September. In addition to his numerous particle physics achievements, he became famous for his ventures in archaeology, palaeontology, and astronomy, and for his inventions. As a tribute to this remarkable man, we publish here some extracts from 'Adventures in Nuclear Physics', given as the 1962 University of California Faculty Research Lecture. According to custom, this presentation is a personalized account rather than an impersonal scientific discourse

Factores protectores familiares para la prevención del uso de sustancias psicoactivas (SPA en estudiantes de quinto de primaria de la Institución Educativa San Luis Gonzaga del corregimiento de Chicoral (El Espinal, Tolima

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Martha Magdalena Acevedo-Silva

2016-01-01

Full Text Available Objetivo: Determinar los factores protectores familiares que previenen el uso de sustancias psicoactivas en los estudiantes del grado quinto de primaria de la Institución Educativa San Luis Gonzaga de Chicoral, corregimiento de El Espinal (Tolima. Materiales y métodos: La metodología utilizada fue de tipo cuantitativo, descriptivo y transversal. El análisis y procesamiento de la información se llevó a cabo mediante la utilización del paquete estadístico Statistical Package for the Social Sciences ( SPSS versión 18. La recolección de la información se realizó a través de la aplicación de una encuesta, una escala tipo Lickert autoaplicable. La muestra estuvo constituida por un total de 130 estudiantes de quinto de primaria de la institución educativa pertenecientes al estrato 1 y 2 de acuerdo con el régimen subsidiado Sisbén. Resultados: Para la realización del análisis se empleó la estadística descriptiva con tablas de frecuencias, figuras de barras y cruces de variables. Conclusiones: El estudio permitió reconocer la importancia que tienen los factores pro - tectores para el desarrollo integral y saludable de los adolescentes. La comunicación es un posibilitador de los factores protectores familiares. El fenómeno de consumo de S PA no tiene características diferenciales para el contexto urbano y el contexto rural.

Surface deformation associated with the November 23, 1977, Caucete, Argentina, earthquake sequence

Science.gov (United States)

Kadinsky-Cade, K.; Reilinger, R.; Isacks, B.

1985-01-01

The 1977 Caucete (San Juan) earthquake considered in the present paper occurred near the Sierra Pie de Palo in the Sierras Pampeanas tectonic province of western Argentina. In the study reported, coseismic surface deformation is combined with seismic observations (main shock and aftershocks, both teleseismic and local data) to place constraints on the geometry and slip of the main fault responsible for the 1977 earthquake. The implications of the 1977 event for long-term crustal shortening and earthquake recurrence rates in this region are also discussed. It is concluded that the 1977 Caucete earthquake was accompanied by more than 1 m of vertical uplift.

La Caña de Azúcar y sus Derivados en la Huasteca San Luís Potosí México

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Noé Aguilar Rivera

2011-08-01

Full Text Available La caña de azúcar es el principal cultivo de México, su cosecha se lleva a cabo en 665,000 ha que ocupan a 2.5 millones de personas. Existen 57 ingenios azucareros localizados en 15 estados de la republica. La industria ha cambiado dramáticamente desde la introducción de la caña de azúcar hace 486 años (año 1523 y su situación es reflejo de su metamorfosis y de intereses económicos y políticos. Fueron los españoles quienes introdujeron la caña de azúcar y tomaron así ventajas de las condiciones favorables que México ofrecía para el cultivo y la comercialización de los productos de derivados de la caña de azúcar (melazas, azúcar, panela o piloncillo y aguardiente. Grandes plantaciones fueron establecidas en diversas áreas como la Huasteca Potosina (San Luis Potosí. Esas plantaciones modificaron no solo las condiciones de vida, además la constitución de cada una de esas sociedades. El cambio fue dramático debido a la gran cantidad de indígenas nativos y al interés de los españoles hacia otras mercancías como los minerales y otros cultivos. En este trabajo se presentan algunos aspectos de la evolución y las estrategias para el desarrollo de la industria azucarera en la Huasteca Potosina San Luis Potosí durante el Virreinato de Nueva España.

Luis Patiño Camargo Maestro, Investigador, Humanista

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José Felix Patiño Restrepo

1992-09-01

Full Text Available

Palabras del doctor José Félix Patiño Restrepo, Académico de Número, con motivo de la Sesión Solemne de la Academia Nacional de Medicina para conmemorar el centenario del natalicio del Profesor Luis Patiño Camargo.

Santafé de Bogotá, noviembre 21 de 1991

Son varias las semblanzas que distinguidas personalidades de Colombia y del exterior han escrito sobre el Profesor Luis Patiño Camargo, cuya vida ejemplar dejó honda huella en la medicina y la ciencia colombianas: Carlos Lleras Restrepo y Juan Lozano y Lozano en 1978; Augusto Gast Galvis, Fernando Serpa Flórez y Alfonso Jaram illo Salazar en 1979; Eduardo Guzmán Esponda, Remando Groot y José Francisco Socarrás en 1981; Amador Neghme, de Chile en 1987; Ernesto Andradc Valderrama en 1988, y ahora Carlos Sanmartín Barberi.

“Bella vida y bella muerte la de Luis Patiño Camargo, pensaba yo cuando iba caminando detrás del féretro, después de los sencillos oficios en la iglesia de Iza, hacia el cementerio campesino donde él dispuso que se enterrara en medio de las tumbas de sus padres y debajo de los pinos que plantó con su propia mano”. Así inició Carlos Lleras Restrepo un sentido artículo sobre Patiño Camargo publicado en la Nueva Frontera a los pocos días de su muerte, acaecida en Sogamoso el 13 de noviembre de 1978. Porque ese fue su deseo: reposar para siempre en el cementerio que domina su bello pueblo andino, Iza, donde había nacido el 24 de noviembre de 1891.

Dijo Gast Galvis: “El Dr. Patiño, como el cacique de Inza, después de mucho peregrinar por todo el territorio colombiano, encontró un lugar de brisas tibias, cielo siempre azul, abundantes aguas, suelo fértil, en donde se pudiera vivir y morir en paz”.

Científico, maestro, médico, naturalista, filósofo, humanista, todo eso fue Luis Patiño Camargo, y ninguno de estos términos lo caracteriza de por sí, sino más bien el conjunto de ellos

MODELO CONCEPTUAL DE RIESGO AMBIENTAL POR ARSÉNICO Y PLOMO EN EL DISTRITO MINERO DE SANTA MARÍA DE LA PAZ, SAN LUIS POTOSÍ, MÉXICO

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Carlos Chávez T.

2011-01-01

Full Text Available Con el fin de caracterizar el riesgo ambiental de un sitio contaminado en México, que se localizaen un distrito minero del estado de San Luis Potosí, se construyó su modelo conceptual. El sitio presenta niveles altos de plomo y arsénico en medios ambientales por la dispersión ambiental de residuos y emisiones de la actividad minera histórica y del presente. En la elaboración del modelo, se utilizaron procedimientos sistemáticos aprobados por la normatividad internacional e información histórica del sitio sobre contaminación, impacto y riesgo ambiental para el periodo 1995-2008. El modelo sirvió para 1 establecer conexiones Fuente-Ruta-Receptor, 2 detectar zonas donde ocurren rutas completas de exposición al arsénico y al plomo, y 3 confirmar zonas de mayor riesgo susceptibles de aplicar criterios de remediación de suelos contaminados conforme a la normatividad mexicana. Según indica el estudio, la zona de mayor potencial de riesgo corresponde a la nombrada como Villa de la Paz, destacando al arsénico como el problema principal. Modelos conceptuales en sitios mineros contaminados de EE.UU., Portugal, Irlanda y Australia han servido como herramientas para describir fuentes potenciales, rutas y posibles receptores, realizar el proceso de evaluación de riesgo, y para evaluar la factibilidad de remediación del sitio, entre otros. La normatividad mexicana recomienda elaborar el modelo conceptual en estudios de evaluación de riesgo ambiental y para la remediación del sitio. No obstante, no existen casos documentados en revistas científicas sobre la construcción de estos modelos en sitios mineros de México. Uno de los beneficios potenciales del uso del modelo propuesto, es que, una vez que ha sido simplificada la información, puede ser una herramienta básica para el desarrollo de evaluaciones ambientales del sitio estudiado y una guía para la construcción de modelos en otros sitios mineros de México.

Herpetofauna de la provincia de San Juan, Argentina: lista comentada y distribución geográfica

OpenAIRE

Ávila, Luciano Javier; Acosta, Juan Carlos; Murúa, Fernando

1998-01-01

El conocimiento de la fauna de anfibios y reptiles de la Provincia de San Juan es fragmentario e incompleto. En razón de ello, el objetivo de este trabajo es presentar una lista de las especies de anfibios y reptiles registrados para San Juan. La información se relevó a partir de la revisión de colecciones de referencia y a partir de revisiones bibliográficas. Se establece un registro de 59 especies y se presentan las localidades de colección de las mismas. The knowledge of amphibians and ...

Evaluation of macro and microminerals in crude drugs and infusions of five herbs widely used as sedatives

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Marta E. Petenatti

2011-07-01

Full Text Available It has been determined the concentration of fourteen micro and macrominerals (Al, Ca, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Na, P, Se, and Zn in both crude drugs and infusions of Melissa officinalis L., Lamiaceae, Nepeta cataria L., Lamiaceae, Passiflora caerulea L., Passifloraceae, Tilia x moltkei Späth ex C.K. Schneid., Tiliaceae, and Valeriana officinalis L., Caprifoliaceae. These herbs are widely consumed by its sedative properties, either alone or in herb mixtures. All measurements were performed using an inductively coupled plasma optical emission spectrometer (ICP-OES. The products were obtained from regional markets, mainly in San Luis province (Argentina. The estimated daily intake was compared with current recommendations. All products and its infusions were included within the upper tolerable limits for minerals, in trace elements such as toxic elements present at low levels.

Evaluation of macro and microminerals in crude drugs and infusions of five herbs widely used as sedatives

Directory of Open Access Journals (Sweden)

Marta E. Petenatti

2011-12-01

Full Text Available It has been determined the concentration of fourteen micro and macrominerals (Al, Ca, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Na, P, Se, and Zn in both crude drugs and infusions of Melissa officinalis L., Lamiaceae, Nepeta cataria L., Lamiaceae, Passiflora caerulea L., Passifloraceae, Tilia x moltkei Späth ex C.K. Schneid., Tiliaceae, and Valeriana officinalis L., Caprifoliaceae. These herbs are widely consumed by its sedative properties, either alone or in herb mixtures. All measurements were performed using an inductively coupled plasma optical emission spectrometer (ICP-OES. The products were obtained from regional markets, mainly in San Luis province (Argentina. The estimated daily intake was compared with current recommendations. All products and its infusions were included within the upper tolerable limits for minerals, in trace elements such as toxic elements present at low levels.

Effects of season, sex and age on the diet of Homonota fasciata (Squamata, Phyllodactylidae) from Monte region of Argentina

OpenAIRE

Cocilio, Rodrigo A. Nieva; Blanco, Graciela M.; Acosta, Juan C.

2016-01-01

Abstract This study aimed to investigate the diet of the gecko Homonota fasciata (Duméril & Bibron, 1836) in a population from Monte of San Juan Province, Argentina, and to analyze possible temporal, sexual, and ontogenetic variations in feeding behavior. We determined the total volume, number, and occurrence frequency of each prey item and calculated the relative importance indexes. We also assessed trophic diversity and trophic equity. Homonota fasciata had a generalist and diverse diet bas...

Obesity is associated with the Arg389Gly ADRB1 but not with the Trp64Arg ADRB3 polymorphism in children from San Luis PotosÍ and León, México.

Science.gov (United States)

Aradillas-Garc X Cd, Celia; Cruz, Miguel; Pérez-Luque, Elva; Garay-Sevilla, María E; Malacara, Juan M; R, Aduna; Peralta, Jesús; Burguete-García, Ana; Alegría-Torres, Jorge A

2016-10-17

This research was designed to analyze the possible associations of Arg389Gly ADRB1 and Trp64Arg ADRB3 polymorphisms in children with obesity. A cross-sectional study included 1,046 school-age Mexican participants (6-12 years old) from the cities of San Luis PotosÍ and León. Children were classified as non-obese or obese according to their body mass index (BMI) percentile; obese children had a BMI≥95th percentile for sex and age. Biochemical data were collected. Polymorphisms were detected using TaqMan qPCR assay. A logistic regression analysis was used to calculate the risk of obesity based on genotypes. Differences were found between groups where obese children had a significant increase in systolic and diastolic blood pressure, fasting plasma glucose, insulin, HOMA-IR, LDL-cholesterol, triglycerides, and lower HDL-cholesterol compared with the normal weight group (P<0.05). The distribution of allele frequency in the population was Arg= 87.4 and Gly= 12.6 (Hardy Weinberg equilibrium c 2 = 3.16 , P = 0.07 ); Trp= 81.5 and Arg= 18.5 (Hardy Weinberg equilibrium c 2 = 2.2, P = 0.14 ) for ADRB1 and ADRB3, respectively. Even though no different frequencies of Arg389Gly polymorphism between groups were found (P = 0.08), children carriers of one Gly389 ADRB1 allele had a risk for obesity of OR=1.40 (95%CI, 1.03-1.90, P = 0.03) after adjustment for age and gender. No other association was found for Trp64Arg ADRB3 polymorphism. Only the Arg389Gly ADRB1 polymorphism was associated with risk for obesity in Mexican children.

Expansão espacial da leishmaniose visceral americana em São Luis, Maranhão, Brasil Space expansion of the American visceral leishmaniasis in São Luis, Maranhão, Brazil

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Wellington da Silva Mendes

2002-06-01

Full Text Available Descreve-se a ocupação espacial no município de São Luis e a expansão da leishmaniose visceral americana(LVA na mesma. Foram analisadas as fichas de registro de atendimento de casos de leishmaniose visceral da Diretoria Regional da Fundação Nacional de Saúde do Maranhão no período de setembro de 1982 a dezembro de 1996, assim como documentos oficiais sobre a ocupação espacial do município. Foi observado que os casos de LVA ao longo da evolução da epidemia em São Luis apresentaram distribuição espacial e concentração semelhantes a apresentada pelo fluxo migratório na cidade no mesmo período.The space occupation and the expansion of American visceral leishmaniasis (AVL were described in the municipality of São Luis, Maranhão, Northeast Brazil. AVL medical notes from the Fundação Nacional de Saúde as well as official documents about the space occupation were analyzed from September 1982 to December 1996. AVL cases were more likely to occur in recently settled suburbs and tended to follow the same spatial pattern observed for land occupations secondary to migratory fluxes.

Doctor Ramón Luis Miranda Torres, su relación con las neurociencias

OpenAIRE

Hodelín Tablada,Ricardo

2005-01-01

Objetivo: en el presente trabajo se reseña la relación del doctor Ramón Luis Miranda con las neurociencias, dirigido a destacar su inclinación por estas disciplinas. Desarrollo: conocido en la historiografía médica como el médico de José Martí el apóstol cubano el doctor Ramón Luis Miranda Torres, se destacó en otros aspectos poco divulgados, por lo que opinamos que no se le ha otorgado su verdadera dimensión. Nacido en la ciudad de Matanzas, Cuba, estudió medicina en Francia y desde sus años...

Los avisos para la muerte de Luis Ramirez de Arellano

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Inmaculada Osuna

2009-01-01

Full Text Available Avisos para la muerte (1634, compiled by Luis Ramírez de Arellano, gathers, along with other complementary materials (among these, two prayers written in verse for before confession and before communion, and an act of contrition in prose, thirty poems that are presented as models for prayers addressed to a crucified Christ in the moment of his death. These poems emerge from a group initiative in which notable poets from the Madrid court took part, poets such as Lope de Vega, Pedro Calderón de la Barca, José de Pellicer, José de Valdivielso, Luis Vélez de Guevara, Juan Pérez de Montalbán and Francisco de Rojas Zorrilla. My article examines the social context in which this poetic collection is born, the composition of the book, its successful publishing history throughout two centuries as well as the reiterative representation in the poems of particular meditatio mortis topics (the staging of agony; the expression of repentance, love for Christ and hope for his mercy; and the contemplation of Christ’s body on the cross.

Moessbauer, TEM/SAED and XRD investigation on waste dumps of the Valea lui Stan gold mines

Energy Technology Data Exchange (ETDEWEB)

Constantinescu, Serban Grigore, E-mail: sconst@infim.ro [National Institute of Materials Physics, Bucharest-Magurele (Romania); Udubasa, Sorin S.; Udubasa, Gheorghe [University of Bucharest, Fac. of Geology and Geophysics (Romania); Kuncser, Victor; Popescu-Pogrion, Nicoleta; Mercioniu, Ionel; Feder, Marcel [National Institute of Materials Physics, Bucharest-Magurele (Romania)

2012-03-15

The complementary investigation techniques, Moessbauer spectroscopy, transmission electron microscopy with selected area electron diffraction (TEM/SAED), X-ray diffraction (XRD) have been used to investigate the fate of the Valea lui Stan, Romania, gold-ore nanoscale-minerals during the long time of residence in the waste dumps. The preliminary investigations showed such waste dumps to contain significant amount of metals which cannot be identified by conventional methods. An intense research activity started up in order to evaluate the possibilities to recycle Valea lui Stan waste dumps and to recover metals by chemical or phytoextraction procedures. The waste dumps naturally show different mineral constituents with clay minerals as major phases, observed by XRD-technique. Although the waste dumps materials have whitish-yellowish colours, MOeSSBAUER technique evidences the presence of the finely dispersed iron bearing minerals. The authors are focusing to inspect and analyze Fe-compounds in the samples collected from Valea lui Stan's waste dumps in order to identify the magnetic phases by Moessbauer technique.

High-resolution sequence stratigraphy and continental environmental evolution: An example from east-central Argentina

Science.gov (United States)

Beilinson, Elisa; Veiga, Gonzalo D.; Spalletti, Luis A.

2013-10-01

The aims of this contribution is to establish a high-resolution sequence stratigraphic scheme for the continental deposits that constitute the Punta San Andrés Alloformation (Plio-Pleistocene) in east-central Argentina, to analyze the basin fill evolution and to identify and assess the role that extrinsic factors such as climate and sea-level oscillations played during evolution of the unit. For the high-resolution sequence stratigraphical study of the Punta San Andrés Alloformation, high- and low-accommodation system tracts were defined mainly on the basis of the architectural elements present in the succession, also taking into account the relative degree of channel and floodplain deposits. Discontinuities and the nature of depositional systems generated during variations in accommodation helped identify two fourth-order high-accommodation system tracts and two fourth-order low-accommodation system tracts. At a third-order scale, the Punta San Andrés Alloformation may be interpreted as the progradation of continental depositional systems, characterized by a braided system in the proximal areas, and a low-sinuosity, single-channel system in the distal areas, defined by a high rate of sediment supply and discharge peaks which periodically flooded the plains and generated high aggradation rates during the late Pliocene and lower Pleistocene.

Public communication on times of environmental crisis. The opening of San Rafael 's uranium complex

International Nuclear Information System (INIS)

Calvino, Carlos; Cisneros, Martin

2008-01-01

Full text: Argentina has had a lot of cultural changes in the last few years. An environmental movement has gathered and is trying to stop the opening of the Sierra Pintada uranium complex, near the city of San Rafael, in the south of Mendoza province. Since 2005, several 'groundless information' have been published in the local media about the dangers of this re-opening. These news exaggerate the properties of radon gas, claiming that it will reach San Rafael city (20 miles from the complex), rising radiological risk among the population, etc. This scene shows a 'non-real' picture of the regulatory activities that the Nuclear Regulatory Authority (ARN), a government agency that regulates nuclear facilities in Argentina, is really and systematically accomplishing. In this situation, the board of Directors of ARN decided to entrust a full analysis of the environmental issue in the area. The Office of Press and Communication implemented a local communication plan, using a Strategic and Systemic tool kit. The period to be analyzed is from second semester 2005 to February 2007. A little bit of history: the San Rafael Complex started in September 20 of 1979. It belongs to the National Commission of Atomic Energy (CNEA), a government agency. Until its temporary suspension in 1995 for international market reasons (uranium price was U$S 10 / pound), almost 2 million tons of uranium were processed. Besides its temporary suspension, the ARN has been constantly monitoring this particular former complex. In the year 2001, CNEA notices that the uranium price starts to rise and entrust National Technology University, Avellaneda Branch, to accomplish an Environmental Impact Report, according to the argentine law 25.585. Due especially to the rising of uranium price, (actually, the uranium price is approximately U$S 200) the national government determined to restart the extraction of the mineral again. By the year 2004, with the results of the Environmental Impact report, CNEA

Paleogenetical study of pre-Columbian samples from Pampa Grande (Salta, Argentina).

Science.gov (United States)

Carnese, Fransisco R; Mendisco, Fanny; Keyser, Christine; Dejean, Cristina B; Dugoujon, Jean-Michel; Bravi, Claudio M; Ludes, Bertrand; Crubézy, Eric

2010-03-01

Ancient DNA recovered from 21 individuals excavated from burial sites in the Pampa Grande (PG) region (Salta province) of North-Western Argentina (NWA) was analyzed using various genetic markers (mitochondrial DNA, autosomal STRs, and Y chromosomal STRs). The results were compared to ancient and modern DNA from various populations in the Andean and North Argentinean regions, with the aim of establishing their relationships with PG. The mitochondrial haplogroup frequencies described (11% A, 47% B, and 42% D) presented values comparable to those found for the ancient Andean populations from Peru and San Pedro de Atacama. On the other hand, mitochondrial and Y chromosomal haplotypes were specific to PG, as they did not match any other of the South American populations studied. The described genetic diversity indicates homogeneity in the genetic structure of the ancient Andean populations, which was probably facilitated by the intense exchange network in the Andean zone, in particular among Tiwanaku, San Pedro de Atacama, and NWA. The discovery of haplotypes unique to PG could be due to a loss of genetic diversity caused by recent events affecting the autochthonous populations (establishment of the Inca Empire in the region, colonization by the Europeans).

[The relationship between socioeconomic factors and maternal and infant health programs in 13 Argentine provinces].

Science.gov (United States)

Etchegoyen, Graciela; Paganini, José María

2007-04-01

To analyze the relationship between maternal and infant health and socioeconomic, cultural, and sanitation factors in Argentina; to evaluate how health program quality affects the primary health indicators for mothers and infants. This is a cross-sectional study with multiple variables. The authors studied six indicators for maternal and infant health: rates for maternal, infant, neonatal, and postneonatal mortality; the percentage of newborns with low birthweight; and the percentage of premature newborns. The study was conducted in 79 administrative units in 13 provinces that represent different geographic regions of Argentina. They included (1) the provinces of Salta and Jujuy in northwest Argentina; (2) the provinces of Córdoba, Santa Fe, and Buenos Aires in central Argentina; (3) the provinces of Entre Ríos and Misiones in the Mesopotamia or northeast region; (4) the provinces of San Luis, San Juan, and Mendoza in the Cuyo or northwest, Andean region; and (5) the provinces of Neuquén, Río Negro, and Chubut in the south. The explanatory variable in the study was the quality of health programs, controlled by socioeconomic, cultural, and sanitation factors in 1999 and 2000. The definition of program quality ("poor," "average," "good," and "very good") was based on quantitative and qualitative analysis of selected variables such as policies, organization, and procedures as determined by the investigators. Documentation was obtained from secondary official sources. The investigators interviewed 117 health system managers (including supervisors of provincial and local health programs, administrators of maternal and child health programs, and hospital directors), who provided information on characteristics and indicators of the health programs. There were marked geographic differences in the levels of maternal and infant health, medical care, and socioeconomic, cultural, and sanitation factors. Only 10.0% of health programs were classified as "very good," 35.4% as

Luis Alcoriza o la mexicanización del exiliado cinematográfico republicano = Luis Alcoriza or the Mexican Nationalization of the Republican Cinematography Exile

Directory of Open Access Journals (Sweden)

Jorge Chaumel Fernández

2016-03-01

Full Text Available Luis Alcoriza,  exiliado republicano español en México, desarrolló su carrera como  actor, guionista y director en su patria de adopción dándola algunas de sus mejores películas. En su condición de exiliado dispuso de mayor objetividad para mostrar los cambios de la sociedad mexicana y de sus principales problemas políticos. Figura imprescindible de la evolución del Cine Mexicano  de  la segunda mitad del siglo XX, se configura como uno de los principales ejemplos del  fenómeno de mexicanización de los cineastas exiliados.Luis Alcoriza, Spanish republican exile in Mexico, developed his career as an actor, writer and director in his adopted country giving her some of his best films. In his exile he had before as objective to show the changes in Mexican society and its major political problems. Essential figure in the evolution of Mexican cinema in the second half of the twentieth century stands as one of the prime examples of the phenomenon of mexicanización of exiled filmmakers.

Timber resource statistics for the central coast resource area of California.

Science.gov (United States)

Karen L. Waddell; Patricia M. Bassett

1996-01-01

This report is a summary of timber resource statistics for the Central Coast Resource Area of California, which includes Alameda, Contra Costa, Marin, Monterey, San Benito, San Francisco, San Luis Obispo, San Mateo, Santa Barbara, Santa Clara, Santa Cruz, Solano, and Ventura Counties. Data were collected as part of a statewide multi-resource inventory. The inventory...

Provisional catalogue of the flora of San Ignacio de Huinay, Chile

Directory of Open Access Journals (Sweden)

Ramón Morales

2016-09-01

Full Text Available Contribution to the vascular plants flora of San Ignacio de Huinay natural reserve, Comau fiord, Región de los Lagos, Chile. To date, 262 species with their herbaria sheets stored in 5 different American and European herbaria (CONC, M, MA, and SGO and that of Huinay, are known in the territory. In this work some first new records for the South Cone are included, such as Potentilla anglica, Plantago media, and Mentha x rotundifolia. Furthermore, some of the records are new for the Flora of Chile, such as Juncus burkartii, only known from Argentina. Other species very scarcely cited in Chile, such as Solanum nigrum and Bromus squarrosus, are also included.

Luis Buñuel: trascendiendo el tópico

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Dr. Manuel Carlos Fernández Sánchez

2001-01-01

Full Text Available En 1900 nace el cineasta Luis Buñuel en Calanda, Aragón. En el año 2000 se celebró en distintos ámbitos cinematográficos y televisivos de todo el mundo el centenario de su nacimiento. Festivales de cine, cadenas de televisión por satélite u onda hertziana, periódicos y revistas se hacen eco de la enorme trascendencia del lenguaje cinematográfico buñueliano. Este estudio sobre la última de sus películas rodada en Andalucía, concretamente en Sevilla, pretende aportar un nuevo análisis sobre esta obra que trascendió el tópico andaluz.ABSTRACIn 1900 the film director Luis Buñuel is born in Calanda, Aragón. In 2000, it took place the centennial of his birth in different film and television environments in all over the world. The transcendency of film languaje used by Buñuel has been anlysed in cinema festivals, television, newspapers and magazines. This study, focus on his last movies filmed in Andalusia, concretely in Seville, it seeks to contribute with a new analysis on this work that transcended the Andalusian topic.

Argentina

International Nuclear Information System (INIS)

Tanis, S.; Ramberg, B.

1990-01-01

Argentina has embarked on an ambitious domestic nuclear research and energy program. The venture promises to provide the nation with the infrastructure to play an important role in the nuclear export market in the years ahead. Buenos Aires built its program on a foundation of international support and assistance that overlay an emerging sophisticated industrial and scientific establishment. The foreign contribution sensitized Argentina to opportunities in the global market. This paper reports that Argentina operates two heavy-water/natural uranium reactors, Atucha I and Embalse. Producing, respectively, 320 MW(e) and 600 MW(e), they supply roughly 10 percent of the country's electricity. With a capacity factor of 84 percent, Atucha I is among the best operated plants in the world. Plans call for a third, 745 MW(e) power plant, Atucha II, to go on line in the early 1990s. During this period, construction also may begin on three 300 MW(e) plants, although the country's foreign indebtedness plus cost overruns in earlier construction will place a heavy burden on these plans

Theoretical investigations on the high light yield of the LuI3:Ce scintillator

International Nuclear Information System (INIS)

Vasil'ev, A.N.; Iskandarova, I.M.; Scherbinin, A.V.; Markov, I.A.; Bagatur'yants, A.A.; Potapkin, B.V.; Srivastava, A.M.; Vartuli, J.S.; Duclos, S.J.

2009-01-01

The extremely high scintillation efficiency of lutetium iodide doped by cerium is explained as a result of at least three factors controlling the energy transfer from the host matrix to activator. We propose and theoretically validate the possibility of a new channel of energy transfer to excitons and directly to cerium, namely the Auger process when Lu 4f hole relaxes to the valence band hole with simultaneous creation of additional exciton or excitation of cerium. This process should be efficient in LuI 3 , and inefficient in LuCl 3 . To justify this channel, we perform calculations of density of states using a periodic plane-wave density functional approach. The second factor is the increase of the efficiency of valence hole capture by cerium in the row LuCl 3 -LuBr 3 -LuI 3 . The third one is the increase of the efficiency of energy transfer from self-trapped excitons to cerium ions in the same row. The latter two factors are verified by cluster ab initio calculations. We estimate either the relaxation of these excitations and barriers for the diffusion of self-trapped holes (STH) and self-trapped exciton (STE). The performed estimations theoretically justify the high LuI 3 :Ce 3+ scintillator yield.

Los cambios en la política social argentina y el impacto del terremoto de San Juan (1944)

OpenAIRE

Pablo Buchbinder

2014-01-01

El objetivo del artículo consiste en analizar las consecuencias sociales y políticas del terremoto de San Juan. El estudio focaliza en tres aspectos: los relacionados con las colectas de dinero para las víctimas, con las políticas de vivienda y con la aparición de nuevas leyes de adopción de menores. Abstract  The aim of this paper is to analyze the social and political consequences of the earthquake in San Juan. The study focuses on three areas: those related to collecting money for...

Consumos Rituales: usos y alcances de las mercancías religiosas en el santuario de San Expedito

OpenAIRE

Algranti, Joaquín

2016-01-01

Resumen El objetivo del presente artículo consiste en explorar los consumos rituales que despliegan los peregrinos en torno a la imagen de San Expedito en la parroquia Nuestra Señora de Balvanera, Buenos Aires, Argentina. El artículo se encuentra dividido en tres partes. En la primera nos proponemos reconstruir brevemente la figura del homo œconomicus y la influencia en los estudios sobre consumo religioso. En el segundo apartado vamos a explorar los usos rituales de los objetos de santería. ...

Exposiciones: Capuleto en la sala "Luis Ángel Arango"

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Arístides Meneghetti

1958-07-01

Full Text Available La exposición del joven pintor español Francisco Capuleto, realizada en la Biblioteca "Luis Ángel Arango" el pasado mes de mayo, refresca un viejo problema en la conciencia de todo americano. Existen dos Españas diferentes, la una folclórica, de aire flamenco, majas y alegres panderetas, creada para la exportación y el turismo, a que son tan afectas las personas.

Incidencia potencial de la erosión eólica sobre la degradación del suelo y la calidad del aire en distintas regiones de la Argentina Potential effects of wind erosion on soil degradation and air quality in different regions of Argentina

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Daniel E Buschiazzo

2009-12-01

Full Text Available La erosión eólica puede alterar la calidad de los suelos y la atmósfera. La magnitud de estos efectos es variable según el tipo de suelo y su uso, y está asociada con el tipo de transporte de las partículas: rodadura y saltación deterioran más el suelo mientras que la suspensión tiende a emitir partículas finas (PM10 afectando la calidad del aire. El objetivo de este estudio fue analizar la magnitud de la erosión eólica en diferentes suelos de la Argentina, con el fin de inferir su incidencia sobre la degradación del suelo y la emisión de partículas finas a la atmósfera. El estudio se llevó a cabo en cuatro sitios de la Argentina, ubicados en las provincias de Chaco (CHA, San Luis (SLU, La Pampa (LPA y Río Negro (PAT. En los mismos se midió la erosión eólica a campo en parcelas cuadradas de 1 ha, por medio de colectores BSNE. Los resultados indican que tanto el material total circulante en el ambiente, definido como el flujo de masa (FM, como la erosión del suelo (Q, fueron mayores en los sitios con suelos menos evolucionados de SLU (Ustipsamment y LPA (Haplustol y menores en los sitios con suelos mas evolucionados de CHA (Hapludol o con suelos poco evolucionados pero con cobertura vegetal permanente de pastos naturales de PAT (Haplargid. El transporte de material se realizó, principalmente, por saltación y rodadura en SLU, LPA y CHA y por suspensión en PAT. En este último sitio la presencia de cobertura vegetal, aunque en baja proporción (10%, elevó el perfil del viento e incrementó la suspensión. El cociente FM/Q, un índice de la proporción de la erosión del suelo en relación a la movilización total de material en el ambiente, fue máxima en PAT, intermedia en SLU y LPA y mínima en CHA. Se pudo concluir que en ambientes con altas velocidades de viento, suelos poco evolucionados como los Haplargides pero con manejos pastoriles que mantienen coberturas permanentes de pastos, la erosión eólica afectar

Figuraciones, conservación y hegemonía en el proyecto de construcción de un camino en la Reserva de Biosfera Yabotí en San Pedro, Misiones - Argentina. Periodo desde el año 2012 hasta el año 2015

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Carla Antonella Cossi

2015-01-01

Full Text Available El presente trabajo se propone describir, desde una perspectivaantropológica, la manera en que un conjunto de agentesligados al turismo y a las áreas naturales protegidas –entre losque se encuentran organizaciones transnacionalesgubernamentales y no gubernamentales, funcionarios políticosy empresarios– se disputan el capital político, simbólico yeconómico necesario para definir los límites de la conservación.Nos aproximamos, así, a las relaciones de fuerzas que generanlas estrategias de conservación y turismo sustentable de losdiferentes sectores involucrados con el proyecto deconstrucción de un camino provincial, al interior de la Reservade Biosfera Yabotí y del Parque provincial Moconá, en SanPedro, Misiones-Argentina.

Asociación de cepas fijadoras de nitrógeno de vida libre, con recursos genéticos de pastos para zonas áridas.

OpenAIRE

Plascencia Jiménez, Raúl

2014-01-01

Para evaluar microorganismos de la rizosfera de Bouteloua curtipendula (Michx.) Torr., se recolectó suelo de cinco localidades 1) Salinas, San Luis Potosí 2) Ejido, Jacalón, Salinas, San Luis Potosí; 3) Calera, Zacatecas; 4) Santa María del Oro, Durango y 5) Crucero La Zarca, Durango. La población de actinomicetos, bacterias y hongos, se estimó con diluciones seriadas (10-1 a 10-10). Los actinomicetos (AS), bacterias (BS) y hongos (HS) se estimaron con diluciones 10-3 a 10-5; 10-5 a 10-7; 10-...

Environmental Impact Analysis Process. Volume 1. Preliminary Draft Environmental Impact Statement Construction and Operation of Space Launch Complex 7, Vandenberg Air Force Base, California

Science.gov (United States)

1989-04-06

Unavoidable Adverse Effe 4-165 4.17.1 Significant Unavoidable Advene Effec 4-165 4.17.1.1 Geology Md Sols 4-165 4.17.1.2 Wanr Use 4-165 4.17.1.3 Vegmadon...includes Pismo Beach and Guadalupe Dunes to Oceano in San Luis Obispo I I 3-37 K County, east of Casmalia, Surf, Point Arguello, and Point Conception...May to July. It is known from the Cypress Ridge area to near I 1 3-39 Oceano in San Luis Obispo County (C. Smith 1976; D. Smith 1983). This plant

Eric Bach : ilustrador de Luis de Góngora

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María Dolores Antigüedad del Castillo Olivares

1991-01-01

Full Text Available El pintor holandés Eric Bach [Eríurt (Alemania 1911] ha mostrado durante el año 1991 sus obras como ilustrador en sendas exposiciones celebradas en Córdoba y Madrid. El artista que reside indistintamente en Munich y Barcelona, expuso las ilustraciones que ha realizado para la edición en alemán de Los veinticuatro sonetos amorosos, heroicos y fúnebres de don Luis de Góngora, edición hecha por encargo del Sr. Rüdiger Kampmann de Munich.

SECCIÓN ABIERTA - 2. INFLUENCIA DE LA ESPIRITUALIDAD EN LOS ESTILOS DE AFRONTAMIENTO DE PACIENTES CON BULIMIA Y ANOREXIA NERVIOSA // INFLUENCE OF SPIRITUALITY IN COPING STYLES OF PATIENTS WITH BULIMIA AND ANOREXIA NERVOSA

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Marisa Edith Oviedo Romero

2012-06-01

Full Text Available Basándose en el supuesto de que la espiritualidad es un factor que podría influir sobre los estilos de afrontamiento de las personas ante situaciones problemáticas, se analizó la influencia de la espiritualidad en el estilo de afrontamiento de pacientes diagnosticadas de anorexia y/o bulimia nerviosa.39 mujeres de Buenos Aires, Entre Ríos, San Luis y Mendoza (Argentina, fueron evaluadas mediante el Cuestionario de Modos de Afrontamiento (WCCL y el Inventario de Sistema de Creencias (SBI–15R.Los resultados mostraron una influencia moderada de la dimensión soporte social religioso (F(1;24= 2,094; p=0,054 en el uso y/o desarrollo del estilo de afrontamiento centrado en la evaluación, no así en los demás estilos, por parte de pacientes diagnosticadas de bulimia y/o anorexia nerviosa.

San Francisco folio, California, Tamalpais, San Francisco, Concord, San Mateo, and Haywards quadrangles

Science.gov (United States)

Lawson, Andrew Cowper

1914-01-01

The five sheets of the San Francisco folio the Tamalpais, Ban Francisco, Concord, Ban Mateo, and Haywards sheets map a territory lying between latitude 37° 30' and 38° and longitude 122° and 122° 45'. Large parts of four of these sheets cover the waters of the Bay of San Francisco or of the adjacent Pacific Ocean. (See fig. 1.) Within the area mapped are the cities of San Francisco, Oakland, Berkeley, Alameda, Ban Rafael, and San Mateo, and many smaller towns and villages. These cities, which have a population aggregating about 750,000, together form the largest and most important center of commercial and industrial activity on the west coast of the United States. The natural advantages afforded by a great harbor, where the railways from the east meet the ships from all ports of the world, have determined the site of a flourishing cosmopolitan, commercial city on the shores of San Francisco Bay. The bay is encircled by hilly and mountainous country diversified by fertile valley lands and divides the territory mapped into two rather contrasted parts, the western part being again divided by the Golden Gate. It will therefore be convenient to sketch the geographic features under four headings (1) the area east of San Francisco Bay; (2) the San Francisco Peninsula; (3) the Marin Peninsula; (4) San Francisco Bay. (See fig. 2.)

Diatomeas marinas de aguas costeras de la provincia de Buenos Aires (Argentina.: III Géneros potencialmente nocivos Asterionellopsis, Cerataulina, Ceratoneis y Leptocylindrus Marine diatoms from Buenos Aires coastal waters (Argentina: Ill Potentially harmful genus Asterionellopsis,Cerataulina, Ceratoneis y Leptocylindrus

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INÉS SUNESEN

2007-12-01

Full Text Available El presente trabajo está abocado al estudio morfológico, taxonómico y distribucional de las especies de diatomeas pertenecientes a los géneros Asterionellopsis, Cerataulina, Ceratoneis y Leptocylindrus halladas en aguas costeras marinas de la provincia de Buenos Aires, Argentina. Las muestras planctónicas fueron colectadas en San Clemente del Tuyú, Santa Teresita, La Lucila del Mar, Mar de Ajó, Nueva Atlantis, Pinamar y Villa Gesell, entre noviembre de 1994 y septiembre de 2000. Material sin tratar y tratado fue analizado con microscopio óptico y microscopio electrónico de barrido. Seis taxa correspondientes a los géneros mencionados fueron determinados, de los cuales Cerataulina dentata es citada por primera vez para Argentina y Leptocylindrus minimus es citada por primera vez para el área costera de la provincia de Buenos Aires. Todas las especies reportadas como nocivas no toxígenas para otras áreas geográficas fueron encontradas. Cerataulina pelágica, Ceratoneis closterium y Leptocylindrus minimus, componentes ocasionales del plancton del área siempre en bajas densidades, no fueron nunca asociadas a episodios de floración. Asterionellopsis glacialis, componente habitual del plancton, fue causante de discoloraciones nocivas para el turismo y las actividades recreacionalesThe present work is devoted to the morphological, taxonomic, and distributional study of the diatom species belonging to the genera Asterionellopsis, Cerataulina, Ceratoneis and Leptocylindrus found in the marine coastal waters of Buenos Aires Province, Argentina. Planktonic samples were collected from November 1994 to September 2000 at San Clemente del Tuyú, Santa Teresita, La Lucila del Mar, Mar de Ajó, Nueva Atlantis, Pinamar and Villa Gesell. Raw and cleaned samples were analysed with light and scanning electron microscopy. Six taxa of the mentioned genera were determined, of which Cerataulina dentata is reported for the first time for Argentina and

Huasteca Potosina, San Luis Potosí

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Virginia Gabriela Cilia López

2015-01-01

Full Text Available México es un país rico en conocimiento tradicional, conocimiento que se refleja en sus costumbres. El uso de plantas comestibles sigue siendo una práctica vigente y su importancia se puede ver en muchos mercados tradicionales. Las plantas comestibles locales son un recurso alternativo en las dietas de poblaciones indígenas y rurales; forman parte de la biodiversidad local y son una fuente importante de recursos fitogenéticos, además de que la ingesta de una dieta variada tiene beneficios en la salud de la población que la consume. El presente estudio tuvo como objetivo identificar las plantas alimenticias locales de una comunidad indígena clasificada como de muy alta marginación . Se encontró una diversidad de especies comestibles locales que contribuyen a la dieta de la comunidad. Se registró 54 especies pertenecientes a 46 géneros y 31 familias. Estas plantas tienen las cualidades de ser accesibles para la población y haberse adaptado al medio ambiente local.

port_san_luis_public_mhw.grd

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — NGDC builds and distributes high-resolution, coastal digital elevation models (DEMs) that integrate ocean bathymetry and land topography to support NOAA's mission to...

Dinámicas de la actividad científica del Instituto de Investigaciones Socio-Económicas de la Universidad Nacional de San Juan de Argentina

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Gonzalo Miguel Castillo

2018-02-01

Full Text Available Este artículo fue un estudio de caso en torno a las capacidades de investigación generadas en el Instituto de Investigaciones Socio-Económicas de la Facultad de Ciencias Sociales, perteneciente a la Universidad Nacional de San Juan, en Argentina. Aborda los principales acontecimientos históricos de la institución y su dinámica actual, tuvo en cuenta las áreas de conocimiento en las cuales se desarrollan sus investigaciones. A su vez, este trabajo ha descrito las dinámicas de la revista académica producida en este instituto, denominada REVIISE. La metodología fue un abordaje objetivo/descriptivo. Se procedió a analizar el papel, devenir y accionar del IISE y las modalidades de proyectos de investigación ejecutados. Fueron indagados el funcionamiento de la REVIISE, identificando perfiles académicos de sus autores, circuitos de difusión y redes académicas; y la conformación de comités y consejos editoriales y académicos que componen esta publicación. Se propone realizar un recorrido que atraviesa lo institucional, los agentes académicos y la principal red de difusión de la producción de conocimiento para comprender las capacidades investigativas del Instituto de Investigaciones Socio Económicas.

Diseño de indicadores urbanos de sustentabilidad. El caso del Gran San Juan en Argentina.

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Nora Elsa Nacif

2016-11-01

Full Text Available Este trabajo surge de un proyecto de investigación en curso, cuya finalidad principal es contribuir al desarrollo urbano sustentable de la ciudad de Gran San Juan, entendiendo por tal, al desarrollo que considera como ejes del mismo a la equidad social, la eficiencia económica y la preservación del ambiente, a través del estudio de un cuerpo de indicadores urbanos como herramientas de monitoreo permanente y dinámico. La consideración de la sustentabilidad en Gran San Juan, es un imperativo ineludible por su carácter de “ciudad oasis de zona sísmica”, lo que implica preservar su condición de ciudad intermedia. En este marco, se sigue un esquema metodológico que ordena el trabajo en etapas generales de exploración de antecedentes e información obtenida como trabajo de campo, procesamiento y georeferenciación de resultados, para posteriormente formular lineamientos a ser considerados en planes de ordenamiento territorial. Hasta el momento los resultados obtenidos dentro de la línea investigativa, incluyen el desarrollo de un sistema de indicadores estructurado y articulado en base a tres subsistemas que se corresponden con los aspectos: Físico espacial, Socio cultural y Ambiental, que contienen a los diversos indicadores de sustentabilidad. Además de la aplicación de los indicadores del subsistema físico espacial para evaluar algunos sectores urbanos del Gran San Juan, considerados “críticos”. 

Redescripción y consideraciones biogeográficas de dos especies de Scotobius (Coleoptera: Tenebrionidae de ambientes montanos del centro de Argentina y Chile

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Violeta A. SILVESTRO

2012-01-01

Full Text Available El género neotropical Scotobius Germar (Tenebrioninae: Scotobiini comprende 61 especies distribuidas desde el centro de Perú y sur de Brasil hasta el sur de Argentina y Chile. En este trabajo, revisamos dos especies de Scotobius que habitan el oeste de las provincias de San Juan, Mendoza y Neuquén (Argentina y en Chile central, a lo largo de la Cordillera de los Andes y las montañas extra-andinas en Argentina: S. punctatus Eschscholtz, 1831 y S. andrassyi Kaszab, 1969. Se proveen redescripciones utilizando nuevos caracteres morfológicos y se proporcionan fotografías de los adultos y de los pronotos. Se consigna la distribución geográfica, rangos altitudinales y las provincias biogeográficas en las que habitan estas especies. Se utiliza un modelo predictivo de distribución de especies para proponer hipótesis sobre los factores que influencian la distribución espacial y que explicarían la alopatría de ambas especies.

24 June 2014 - Latin America Ambassadors to Switzerland visiting the LHC tunnel at Point 1 with Beams Department R. A. Fernandez

CERN Multimedia

Egli, Laurent

2014-01-01

Visitors present in random order: Ambassador Antonio Gustavo Trombetta (Argentina) ; Ambassador Igor Kipman (Brasil) ; Ambassador Beatriz Londoño Soto (Colombia) ; Ambassador Isabel Montero de la Cámara (Costa Rica) ; Ambassador María del Pilar Fernandez Otero (Cuba) ; Ambassador Jorge Castro-Valle Kuehne (México) ; Researcher Luis Roberto Flores Castillo (México) ; Chargé d’affaires Esteban Paez Gonzalez (Paraguay) ; Ambassador Luis Juan Chuquihuara Chil (Perú) ; Ambassador Cesar Osvelio Méndez (Venezuela)

Los cambios en la política social argentina y el impacto del terremoto de San Juan (1944

Directory of Open Access Journals (Sweden)

Pablo Buchbinder

2014-10-01

Full Text Available El objetivo del artículo consiste en analizar las consecuencias sociales y políticas del terremoto de San Juan. El estudio focaliza en tres aspectos: los relacionados con las colectas de dinero para las víctimas, con las políticas de vivienda y con la aparición de nuevas leyes de adopción de menores. Abstract  The aim of this paper is to analyze the social and political consequences of the earthquake in San Juan. The study focuses on three areas: those related to collecting money for victims with housing policies and the emergence of new child adoption laws.

Serologic survey for disease in endangered San Joaquin kit fox, Vulpes macrotis mutica, inhabiting the Elk Hills Naval Petroleum Reserve, Kern County, California

Energy Technology Data Exchange (ETDEWEB)

McCue, P.M.; O' Farrell, T.P.

1986-07-01

Serum from endangered San Joaquin kit foxes, Vulpes macrotis mutica, and sympatric wildlife inhabiting the Elk Hills Petroleum Reserve, Kern County, and Elkhorn Plain, San Luis Obispo County, California, was collected in 1981 to 1982 and 1984, and tested for antibodies against 10 infectious disease pathogens. Proportions of kit fox sera containing antibodies against diseases were: canine parvovirus, 100% in 1981 to 1982 and 67% in 1984; infectious canine hepatitis, 6% in 1981 to 1982 and 21% in 1984; canine distemper, 0 in 1981 to 1982 and 14% in 1984; tularemia, 8% in 1981 to 1982 and 31% in 1984; Brucella abortus, 8% in 1981 to 1982 and 3% in 1984; Brucella canis, 14% in 1981 to 1982 and 0 in 1984; toxoplasmosis, 6% in 1981 to 1982; coccidioidomycosis, 3% in 1981 to 1982; and plague and leptospirosis, 0 in 1981 to 1982. High population density, overlapping home ranges, ability to disperse great distances, and infestation by ectoparasites were cited as possible factors in the transmission and maintenance of these diseases in kit fox populations.

Goldmining, dispossessing the commons and multi-scalar responses

NARCIS (Netherlands)

Stoltenborg, Didi; Boelens, Rutgerd

2017-01-01

In 1996, Minera San Xavier (MSX), a Mexican tributary of the Canadian mining company Newgold Inc., announced it wanted to start a large open-pit gold and silver mine in the municipality of Cerro de San Pedro, in the state of San Luis Potosí. The mining site occupies 373 hectares of ejido 2

Geopolítica de los monumentos: los próceres en los centenarios de Argentina, Chile y Perú (1910-1924

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Ortemberg, Pablo

2015-06-01

Full Text Available This paper examines the role of the sculptures dedicated to the Independence Centennials in the making of the diplomatic relations between Argentina, Chile and Peru. The narratives centered in the Independence «heroes» José de San Martín and Simón Bolívar contributed to shape the relations among countries that were still disputing their borders and territory and competing for regional leverage.Se analiza el lugar de las celebraciones de los centenarios patrios de Argentina, Chile y Perú a partir de sus proyectos escultóricos vinculados a la construcción de alianzas políticas. Los usos de los relatos sanmartinianos y bolivarianos desempeñarán un importante papel en la relación entre países que aún conservaban litigios fronterizos y territorios en disputa o que pretendían consolidarse como potencias mediadoras.

Escrituras, hurtos y reelaboraciones de Luis Hurtado de Toledo (1523-1590): edición de su obra literaria y estudio de su obra impresa

OpenAIRE

Gamba Corradine, Jimena

2014-01-01

[ES] La tesis doctoral «Escrituras, hurtos y reelaboraciones de Luis Hurtado de Toledo (1523-1590): edición de su obra literaria y estudio de su obra impresa» consiste en la edición de una parte del corpus literario adjudicado a Luis Hurtado de Toledo. Se editan aquí, con notas al texto, los romances en pliego resguardados en RM 259 + [260] (Romance de las notables cosas que tiene la imperial ciudad de Toledo), RM 261 + [261] y 263 (Romance nuevamente hecho por Luis Hurtado, en el qual se co...

Luis Ramiro Beltrán: Semblanza de un comunicador vanguardista

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Alfonso Gumucio Dagron

2009-03-01

Full Text Available Luis Ramiro Beltrán es un "WAKIKI" investigador de seriedad académica reconocida, pensador que ha dado un aporte significativo a los estudios sobre la comunicación para el desarrollo en América Latina son frases de Alfonso Gumucio al hacer una semblanza de Beltrán en la que destaca su generosidad, apertura tolerancia y colaboración, amigo fiel, constante e incondicional y su creatividad.

Long-term and transient time variation of cosmic ray fluxes detected in Argentina by CARPET cosmic ray detector

Science.gov (United States)

De Mendonça, R. R. S.; Raulin, J.-P.; Bertoni, F. C. P.; Echer, E.; Makhmutov, V. S.; Fernandez, G.

2011-07-01

We present results obtained at El Leoncito (CASLEO, San Juan, Argentina) with the CARPET charged particles detector installed in April 2006. The observed modulation of the cosmic ray flux is discussed as a function of its time variability and it is related to longer solar activity variations and to shorter variations during solar and geomagnetic transient activity. Short period (few minutes, few hours) cosmic ray modulation events are observed during rain time (precipitation) and significant variations of the atmospheric electric field. Complementary observations of the atmospheric electric field indicate that its time variations play an important role in the detected cosmic ray event.

De la BLAA: Exposición en la Biblioteca Luis Angel Arango

Directory of Open Access Journals (Sweden)

Juan Camilo Sierra

2001-01-01

Full Text Available Hasta febrero de 2003 la Biblioteca Luis Ángel Arango exhibirá una de las muestras más representativas del arte religioso internacional: 500 años de arte ruso. Iconos de la Galería Tretyakof de Moscú. Publicamos algunos apartes del plegable que acompaña la muestra.

75 FR 38412 - Safety Zone; San Diego POPS Fireworks, San Diego, CA

Science.gov (United States)

2010-07-02

...-AA00 Safety Zone; San Diego POPS Fireworks, San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary... waters of San Diego Bay in support of the San Diego POPS Fireworks. This safety zone is necessary to... San Diego POPS Fireworks, which will include fireworks presentations conducted from a barge in San...

Argentina: Background and U.S. Relations

Science.gov (United States)

2008-11-05

Comercio Internacional, Y Culto, Comunicado de la Cancillería Argentina, September 11, 2008. 43 A. Rebossio, "Fernández Acusa al FBI de Desestablizar...Argentina," El País (Madrid), September 13, 2008. 44 “Argentina Slams Witness in Cash Suitcase Scandal,” Associated Press Newswires, November 4, 2008

[Vegetation changes during the Holocene in the North Ibersá, Corrientes, Argentina].

Science.gov (United States)

Fernández Pacella, Lionel; Garralla, Silvina; Anzótegui, Luisa

2011-03-01

Vegetation changes during the Holocene in the North Iberá, Corrientes, Argentina. Wetlands are very important sites for palynological studies, since they represent one of the most suitable environments for fossil pollen preservation. The aim of this work was to determine, by palynological analysis of lacustrine sediments, the vegetal communities and the predominant environment during the Holocene in NW of Iberá. Two lagoons were studied: San Sebastián and San Juan Poriahú. Sediment samples were obtained with witness using a "Levingstone square-rod sampler", processed with Faegri e Iversen techniques and dated with C14. The palynological graphs were divided in zones using the Tilia program. The palynological analysis allowed visualizing diverse changes in the vegetation: from 6 140 +/- 50 to 5 170 +/- 100 a. C., the NW of Iberá was characterized by marsh-herbaceous vegetation and arboreal vegetation typical of dry vegetation. From 5 170 +/- 100 to 3 460 +/- 60 a. C., a decrease in the species frequency, typical of wet environments, is produced, and the clogging of the waterbody, from 3460 +/- 60 a. C. onwards, while continuing the dominance of herbaceous vegetation typical of these environments, the arboreal pollen, indicates the beginning of a hygrophilous forest development.

Phytolith analysis in fluvial quaternary sediment (San Salvador and Palmar formation) Uruguay river and Argentina eastern

International Nuclear Information System (INIS)

Patterer, N.; Passeggi, E.; Zucol, A.; Brea, M.; Krohling, D.

2012-01-01

This work is about two microfossils fluvial units deposited by the Uruguay river during the Quaternary. These are San Salvador and Palmar formation (Plio-Pleistocene - Upper Pleistocene).The Palmar formation is a band of 4-15 km along the right bank of the Uruguay river outcropping from the eastern provinces of Corrientes and Entre Rios, to Concepcion del Uruguay

Technical Analysis of In-Valley Drainage Management Strategies for the Western San Joaquin Valley, California

Science.gov (United States)

Presser, Theresa S.; Schwarzbach, Steven E.

2008-01-01

The western San Joaquin Valley is one of the most productive farming areas in the United States, but salt-buildup in soils and shallow groundwater aquifers threatens this area?s productivity. Elevated selenium concentrations in soils and groundwater complicate drainage management and salt disposal. In this document, we evaluate constraints on drainage management and implications of various approaches to management considered in: *the San Luis Drainage Feature Re-Evaluation (SLDFRE) Environmental Impact Statement (EIS) (about 5,000 pages of documentation, including supporting technical reports and appendices); *recent conceptual plans put forward by the San Luis Unit (SLU) contractors (i.e., the SLU Plans) (about 6 pages of documentation); *approaches recommended by the San Joaquin Valley Drainage Program (SJVDP) (1990a); and *other U.S. Geological Survey (USGS) models and analysis relevant to the western San Joaquin Valley. The alternatives developed in the SLDFRE EIS and other recently proposed drainage plans (refer to appendix A for details) differ from the strategies proposed by the San Joaquin Valley Drainage Program (1990a). The Bureau of Reclamation (USBR) in March 2007 signed a record of decision for an in-valley disposal option that would retire 194,000 acres of land, build 1,900 acres of evaporation ponds, and develop a treatment system to remove salt and selenium from drainwater. The recently proposed SLU Plans emphasize pumping drainage to the surface, storing approximately 33% in agricultural water re-use areas, treating selenium through biotechnology, enhancing the evaporation of water to concentrate salt, and identifying ultimate storage facilities for the remaining approximately 67% of waste selenium and salt. The treatment sequence of reuse, reverse osmosis, selenium bio-treatment, and enhanced solar evaporation is unprecedented and untested at the scale needed to meet plan requirements. All drainage management strategies that have been proposed

Cooperación y conflicto entre empresas, comunidades, nuevos movimientos sociales y el papel del gobierno. El caso de cerro de San Pedro (México