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Sample records for luis eastern sierras

  1. 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...

  2. The tectonic significance of K/Ar illite fine-fraction ages from the San Luis Formation (Eastern Sierras Pampeanas, Argentina)

    Science.gov (United States)

    Wemmer, Klaus; Steenken, André; Müller, Stefan; de Luchi, Mónica G. López; Siegesmund, Siegfried

    2011-04-01

    The Sierra de San Luis forms the southern tip of the Eastern Sierras Pampeanas in central Argentina. Two narrow belts of low-grade phyllites and quartz arenites, i.e. the San Luis Formation, have accommodated part of the strain-related differential exhumation of the medium- to high-grade metamorphic domains that constitute to the basement complex of the sierra. Eleven phyllite samples were subjected to the K/Ar fine-fraction dating technique. Results are interpreted in relation to the Kübler index of the illites, which indicate epimetamorphic conditions for the majority of the samples. Obtained ages between 330 and 290 Ma cover a period of compressional tectonics in the late Mississippian (Visean/Serpukhovian boundary) followed by the subsidence during the formation of the Paganzo Basin in the provinces of La Rioja and San Luis. These tectonic movements are coincident with the Toco orogeny in northern Chile and southern Bolivia. This suggests that the older K/Ar ages document the compressional stage and that younger ages record the cooling of the basement during the subsequent extensional uplift of the basement.

  3. Magmatism and mineralization ages from northeast area of La Sierra de San Luis, Argentina

    International Nuclear Information System (INIS)

    Ulacco, Jose H

    2001-01-01

    Three igneous rock groups, characterized as pre, sin and post-kinematics, have intruded the crystalline basement of Sierra de San Luis, Argentina. The ore deposits are associated with Devonian to Carboniferous epizonal granite stocks and batholiths in an area underlain by metamorphic rocks. This granitoids are characterized as post-kinematics magmatism. Model lead ages on the ore deposits (338,8 - 292,1 Ma) are strongly supported by K-Ar ages of the intrusives. The bulk of the north Sierra de San Luis ore deposits are genetically related to late Carboniferous granite plutons. The ore bodies are tungsten veins with greisen envelopes, lead veins, epithermal fluorite veins and REE and Th deposit. A generalized scheme of ore bodies related to granites is proposed. The ore deposits and their lithotectonic setting are characteristic of Gondwana metallogenetic Epoch in the Sierra de San Luis (au)

  4. 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...

  5. Geology and petrography of the Socoscora Sierra . Province of San Luis. Republica Argentina

    International Nuclear Information System (INIS)

    Carugno Duran, A.

    1998-01-01

    The following paper include an study geological and petrographic of the Sierra de Socoscora. San Luis, Argentina. This mountainas is a block with less elevation that the Sierra de San Luis, and it located in the west center of it. It' s formed by an crystalline basement composed by metamorphic haigh grade rocks, with a penetrative foliation of strike N-S. in this context is possible to define petrographicly the following units, migmatitic that fill a big part of the mountain, amphibolites, marbles, skarns, milonites and pegmatites. This units have amphibolitic facies assemblanges mineral and in some them, we can observe retrograde metamorphism of the greesnschist facies. The metamorphic structure is complex and evidence at least three deformation event

  6. 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

  7. 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

  8. 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

  9. 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 ...

  10. 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)

  11. 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

  12. Rating the quality of the landscape of Sierra de las Quijadas National Park, Province of San Luis, Argentina

    International Nuclear Information System (INIS)

    Maero, I.; Rivarola, D.; Tognelli, G.

    2007-01-01

    The National Park Sierra de las Quijadas is located to 120 km to the northwest of the Province of San Luis, Argentina. The study area is of 24,000 hectares, that correspond to 32 % of the total surface, this surface covers the totality with the Potrero de la Aguada and the next zones, the same one was selected because it conforms at the present time the zone of greater frequency of visitors within the Park. The objective of this work is centered in the obtaining of the Total Quality of the Landscape, having compared the demand of beauty to the rest of the other natural resources, to be able to make proposals to improve the Plan of Handling that takes ahead the Administration of National Parks. The used Methodology is the described one by Cendrero et. al. (1987), it is an indirect valuation that is carried out through the components of the landscape and allows to determine the Intrinsic Visual Quality and the Fragility of each one of the Environmental Units in which the park is divided. This analysis allowed to determine 2 Total Qualities of Landscape, that have been mapped using aerial photography equipment and materials and SIG, with field control. This investigation is developed within the Project of Investigation Geology of the Neogeno and Cuaternario of the Mountain range of San Luis, Faculty of Sciences Physical, Mathematics and Natural - National University of San Luis, Argentina. (author)

  13. 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 ...

  14. 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

    Directory of Open Access Journals (Sweden)

    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.

  15. 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

  16. [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.

  17. 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...

  18. 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...

  19. 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

  20. 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.

  1. The geodynamic evolution of the eastern Sierras Pampeanas based on geochemical, Sm-Nd, Pb-Pb and SHRIMP data

    DEFF Research Database (Denmark)

    Drobe, M; Lopez de Luchi, M; Steenken, A

    2011-01-01

    , have been carried out to unravel the provenance and the geodynamic history of the Eastern Sierras Pampeanas, Central Argentina. The geochemical and the Sm–Nd data point to a slightly stronger mafic and less-fractionated material in the provenance area of the Sierras de Co´rdoba when compared...

  2. Late holocene tectonic damming up in eastern Sierras Pampeanas, Cordoba, Argentina

    International Nuclear Information System (INIS)

    Massabie, A.C.; Limarino, C.O; Panarello, H.O.; Cordero, R.R; Bertels, A

    2001-01-01

    Neogene deformation due to Andean Orogeny has caused block faulting in the Sierras Pampeanas area, fracturing a Precambrian Paleozoic crystalline basement. These dislocations produced Late Tertiary to Quaternary landscape changes which are mainly expressed in clear and good preserved fluvial path modifications in sedimentary cover. The study of alterations of fluvial channel pattern associated with Quaternary tectonics has special neotectonic value in this central area of Argentina as a basic method to gain more precise temporal restrain of recent movements. Attention to this specific neotectonic field parallels general geologic knowledge evolution in Sierras Pampeanas. But in spite that nowadays better stratigraphic controls are available based on morphostructural, sedimentologic and paleontologic constraints (Massabie, 1999), still remain temporal uncertainties. Major difficulties for a more precise dating of neotectonic in the area of Sierras Pampeanas is a direct consequence of the random distribution of Neogene continental sediments located in different isolated basins which are mainly lacking of good bioestratigraphic control for comprehensive correlation. First steps in the study of Quaternary faulting dating in Sierras Pampeanas starts with the pioneer paper of Schlagintweit (1954) which reported a Quaternary faulting backed by stratigraphic and morphostructural considerations. Afterthen other papers about Quaternary faulting were presented based on similar geologic constraints (Lencinas y Timonieri, 1968; Massabie, 1976, 1987; Massabie and Szlafsztein, 1991; Kraemer et al., 1993; Massabie et al.,1998). In the way up to manage better adjust of Quaternary faulting dating in Sierras Pampeanas, there is a first work for Eastern Sierras Pampeanas presenting 14 C dating (Costa and Vita-Finzi, 1996). The authors postulated a late step of faulting younger than 1,300 for Comechingones fault with radiocarbon analysis based on organic matter in footwall colluvium

  3. Fitogeografía de la Sierra Monte Grande, Charcas, San Luis Potosí, México

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    Reyes Agüero J. Antonio

    1999-06-01

    Full Text Available Monte Grande is a small (41.8 km mountain range located at the southernmost part of the northern plateau of Mexico. It has a dry climate and its vegetation is characterized by pinyon woodland, oak scrub and three kinds of xerophytic scrub. Based on its flora of 397 species, we analyzed the historie phytogeography of Monte Grande, using only the taxa (families, genera and species that have a restricted distribution. At the family level, we identified three patterns of distribution: 1 from North America to northern South America; 2 mostly in the American continent; 3 families related to the Mediterranean region. At the genus level, five patterns were identified: 1 endemic of arid and semiarid lands of Mexico and adjacent regions of the United States; 2 from southern United States to Central America; 3 broadly distributed, but highly related to the Antillean region; 4 with Mediterranean relations; 5 disjunct or vicariant between the arid lands of North and South America. At the species level, nine patterns of distribution were identified: 1 septentrional plateau; 2 meridional plateau; 3 all plateaus and adjacent regions; 4 all plateaus-Sierra Madre de Oaxaca; 5 all plateaus-northwestern coast plain; 6 all plateaus-both coastal plains; 7 all plateaus-northeastern coastal plain; 8 Mexican xerophytic region; 9 all plateaus-both sierras Madre. These patterns are unlikely to be accidental, as they agree with recent theories about the process that led to the present landform configuration of the American Continent. On the basis of this interpretation, we postulate a major role of the Caribbean and the Former Mediterranean in the florigenesis of present linages of the arid and semiarid lands of Mexico.La sierra Monte Grande, con una extensión de 41.8 km, se localiza en el sur de la altiplanicie septentrional de México. Tiene un clima seco (8So y en ella prevalecen los matorrales xerófilos, piñonares y encinares. A partir de su flora, compuesta por 397

  4. 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...

  5. The metamorphic basement of the southern Sierra de Aconquija, Eastern Sierras Pampeanas: Provenance and tectonic setting of a Neoproterozoic back-arc basin

    Science.gov (United States)

    Cisterna, Clara Eugenia; Altenberger, Uwe; Mon, Ricardo; Günter, Christina; Gutiérrez, Antonio

    2018-03-01

    The Eastern Sierras Pampeanas are mainly composed of Neoproterozoic-early Palaeozoic metamorphic complexes whose protoliths were sedimentary sequences deposited along the western margin of Gondwana. South of the Sierra de Aconquija, Eastern Sierras Pampeanas, a voluminous metamorphic complex crops out. It is mainly composed of schists, gneisses, marbles, calk-silicate schists, thin layers of amphibolites intercalated with the marbles and granitic veins. The new data correlate the Sierra de Aconquija with others metamorphic units that crop out to the south, at the middle portion of the Sierra de Ancasti. Bulk rock composition reflects originally shales, iron rich shales, wackes, minor litharenites and impure limestones as its protoliths. Moreover, comparisons with the northern Sierra de Aconquija and from La Majada (Sierra de Ancasti) show similar composition. Amphibolites have a basaltic precursor, like those from the La Majada (Sierra de Ancasti) ones. The analyzed metamorphic sequence reflects low to moderate weathering conditions in the sediments source environment and their chemical composition would be mainly controlled by the tectonic setting of the sedimentary basin rather than by the secondary sorting and reworking of older deposits. The sediments composition reveal relatively low maturity, nevertheless the Fe - shale and the litharenite show a tendency of minor maturity among them. The source is related to an acid one for the litharenite protolith and a more basic to intermediate for the other rocks, suggesting a main derivation from intermediate to felsic orogen. The source of the Fe-shales may be related to and admixture of the sediments with basic components. Overall the composition point to an upper continental crust as the dominant sediment source for most of the metasedimentary rocks. The protolith of the amphibolites have basic precursors, related to an evolving back-arc basin. The chemical data in combination with the specific sediment association

  6. Vertical Distribution of Ozone and Nitric Acid Vapor on the Mammoth Mountain, Eastern Sierra Nevada, California

    Directory of Open Access Journals (Sweden)

    Andrzej Bytnerowicz

    2002-01-01

    Full Text Available In August and September 1999 and 2000, concentrations of ozone (O3 and nitric acid vapor (HNO3 were monitored at an elevation gradient (2184–3325 m on the Mammoth Mountain, eastern Sierra Nevada, California. Passive samplers were used for monitoring exposure to tropospheric O3 and HNO3 vapor. The 2-week average O3 concentrations ranged between 45 and 72 ppb, while HNO3 concentrations ranged between 0.06 and 0.52 μg/m3. Similar ranges of O3 and HNO3 were determined for 2 years of the study. No clear effects of elevation on concentrations of the two pollutants were detected. Concentrations of HNO3 were low and at the background levels expected for the eastern Sierra Nevada, while the measured concentrations of O3 were elevated. High concentrations of ozone in the study area were confirmed with an active UV absorption O3 monitor placed at the Mammoth Mountain Peak (September 5–14, 2000, average 24-h concentration of 56 ppb.

  7. 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

    Directory of Open Access Journals (Sweden)

    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

  8. Retention and radiative forcing of black carbon in eastern Sierra Nevada snow

    Directory of Open Access Journals (Sweden)

    K. M. Sterle

    2013-02-01

    Full Text Available When contaminated by absorbing particles, such as refractory black carbon (rBC and continental dust, snow's albedo decreases and thus its absorption of solar radiation increases, thereby hastening snowmelt. For this reason, an understanding of rBC's affect on snow albedo, melt processes, and radiation balance is critical for water management, especially in a changing climate. Measurements of rBC in a sequence of snow pits and surface snow samples in the eastern Sierra Nevada of California during the snow accumulation and ablation seasons of 2009 show that concentrations of rBC were enhanced sevenfold in surface snow (~25 ng g–1 compared to bulk values in the snowpack (~3 ng g–1. Unlike major ions, which were preferentially released during the initial melt, rBC and continental dust were retained in the snow, enhancing concentrations well into late spring, until a final flush occurred during the ablation period. We estimate a combined rBC and continental dust surface radiative forcing of 20 to 40 W m−2 during April and May, with dust likely contributing a greater share of the forcing.

  9. Regional polyphase deformation of the Eastern Sierras Pampeanas (Argentina Andean foreland): strengths and weaknesses of paleostress inversion

    Science.gov (United States)

    Traforti, Anna; Zampieri, Dario; Massironi, Matteo; Viola, Giulio; Alvarado, Patricia; Di Toro, Giulio

    2016-04-01

    The Eastern Sierras Pampeanas of central Argentina are composed of a series of basement-cored ranges, located in the Andean foreland c. 600 km east of the Andean Cordillera. Although uplift of the ranges is partly attributed to the regional Neogene evolution (Ramos et al. 2002), many questions remain as to the timing and style of deformation. In fact, the Eastern Sierras Pampeanas show compelling evidence of a long lasting brittle history (spanning the Early Carboniferous to Present time), characterised by several deformation events reflecting different tectonic regimes. Each deformation phase resulted in further strain increments accommodated by reactivation of inherited structures and rheological anisotropies (Martino 2003). In the framework of such a polyphase brittle tectonic evolution affecting highly anisotropic basement rocks, the application of paleostress inversion methods, though powerful, suffers from some shortcomings, such as the likely heterogeneous character of fault slip datasets and the possible reactivation of even highly misoriented structures, and thus requires careful analysis. The challenge is to gather sufficient fault-slip data, to develop a proper understanding of the regional evolution. This is done by the identification of internally consistent fault and fracture subsets (associated to distinct stress states on the basis of their geometric and kinematic compatibility) in order to generate a chronologically-constrained evolutionary conceptual model. Based on large fault-slip datasets collected in the Sierras de Cordoba (Eastern Sierras Pampeanas), reduced stress tensors have been generated and interpreted as part of an evolutionary model by considering the obtained results against: (i) existing K-Ar illite ages of fault gouges in the study area (Bense et al. 2013), (ii) the nature and orientation of pre-existing anisotropies and (iii) the present-day stress field due to the convergence of the Nazca and South America plates (main shortening

  10. Descripción de la dieta del zorro gris, Pseudalopex griseus (Canidae) (Gray, 1869), en el Parque Nacional Sierra de las quijadas, San Luis, Argentina

    OpenAIRE

    Núñez, María Beatriz; Bozzolo, Liliana

    2006-01-01

    La dieta de Pseudalopex griseus (Gray, 1869) fue estudiada mediante el análisis de heces recolectadas en el Parque Nacional Sierra de las Quijadas. El parque representa un ambiente semiárido, con regímenes hídricos estacionalmente marcados. Los resultados obtenidos muestran que el ítem más abundante durante todo el año es el Orden Coleoptera (estación seca 26%; estación húmeda 31%). En la estación seca, el ítem más abundante fueron las cactáceas (12%) y en la húmeda las leguminosas (25%). Otr...

  11. Time constraints on the tectonic evolution of the eastern Sierras Pampeanas (Central Argentina)

    DEFF Research Database (Denmark)

    Siegesmund, Siegfried; Steenken, A; Martino, R D

    2010-01-01

    The application of the SHRIMP U/Pb dating technique to zircon and monazite of different rock types of the Sierras de Córdoba provides an important insight into the metamorphic history of the basement domains. Additional constraints on the Pampean metamorphic episode were gained by Pb/Pb stepwise...... leaching (PbSL) experiments on two titanite and garnet separates. Results indicate that the metamorphic history recorded by Crd-free gneisses (M2) started in the latest Neoproterozoic/earliest Cambrian (553 and 543 Ma) followed by the M4 metamorphism at ~530 Ma that is documented in the diatexites. Zircon...

  12. Distribución geográfica de la avifauna en la Sierra Madre Oriental de San Luis Potosí, México: un análisis regional de su estado de conservación

    Directory of Open Access Journals (Sweden)

    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

  13. A sedimentological analysis of sediments corresponding to the San Gregorio Formation )Lower Permian), located in the eastern border of the North Uruguayan Basin, Sierra Guazunambi

    International Nuclear Information System (INIS)

    Goso Aguilar, C.; Gama, E.

    1998-01-01

    A sedimentological analysis of sediments corresponding to the San Gregorio Formation (Lower Permian), located in the eastern border of the Norte Uruguayan Basin, Sierra Guazunambi, Cerro Largo Departament was made. Facies analysis of about 100 otucrops fand more than 1.300 meters, in an area of 45 square kilometers showed diamictites rhytmites and massive sandstones, formed by gravitational sedimentary flows. Also present are prodelta mudrocks and deltaic front sandstones.(author)

  14. Structure of the Alpujarrides on the southern and eastern border of the Sierra de Lújar

    Directory of Open Access Journals (Sweden)

    Tubía, J. M.

    1990-08-01

    Full Text Available The Alpujarride complex located to the South of the Sierra Nevada and extending between Motril and Adra is formed of five nappes, which in ascending order are: Lújar, Cástaras, Alcázar, Murtas and Adra. These five nappes display a structure that is the result of several overlapping events. Firstly, they reflect a process of ductile shearing associated with a mylonitic foliation and a mylonitic lineation with a N4üo E average orientation. Following this, an episode of translation towards the North has been recorded; this occurred under more superficial conditions and developed gouges and fault breccias. Associated with this episode are locally developed folds, which did not give rise to a mineral blastesis. Afterwards, the late deformations occurred, affecting the whole ofthe ensemble. Of these, the most important are those that originated folds with a N-S axis, verging towards the West and the normal faults. The extensional faults towards the South would be encompassed in this sectionEl Complejo Alpujárride situado al Sur de Sierra Nevada y comprendido entre Motril y Adra, está formado por cinco mantos que son, en orden ascendente: Lújar, Cástaras, Alcázar, Murtas y Adra. Estos cinco mantos presentan una estructuración que es el resultado de varios acontecimientos superpuestos. En primer lugar, reflejan un proceso de cizallamiento dúctil hacia el NE, que lleva asociado una foliación milonítica, de orientación media N4üo E. A continuación se ha registrado un episodio de traslaciones hacia el Norte, en condiciones más superficiales, que desarrolla brechas y harinas de falla. Asociado a este episodio se desarrollan localmente pliegues, que no dan lugar a una blastesis mineral. Con posterioridad se producen las deformaciones tardías, que afectan a todo el conjunto. De ellas, las más sobresalientes son las que originan pliegues de eje N-S, vergentes al Oeste y las fallas normales. Las fallas extensionales hacia el Sur quedar

  15. Distribution and stability of potential salmonid spawning gravels in steep boulder-bed streams of the eastern Sierra Nevada

    International Nuclear Information System (INIS)

    Kondolf, G.M.; Cada, G.F.; Sale, M.J.; Felando, T.

    1991-01-01

    Interest in small hydroelectric development (< 5 MW) has recently focused attention on steep streams and the resident trout populations they contain. High-gradient boulder-bed streams have been the sites of relatively few studies of salmonid spawning habitat, although they have geomorphic and hydraulic characteristics - and therefore gravel distributions - that are quite different from the more commonly described lower-gradient channels. The authors documented gravel distribution in seven high-gradient stream reaches in the eastern Sierra Nevada. Gravels occurred only in locations characterized by relatively low shear stress; they formed small pockets in sites of low divergence and larger deposits upstream of natural hydraulic controls. In 1986 (a wet year), all tracer gravels placed in gravel pockets at nine sites on four streams were completely swept away, and substantial scour, fill, and other channel changes occurred at many sites. In 1987 (a dry year), tracer gravels and the channel cross sections were generally stable. Periodic mobility of gravel may explain why brown trout Salmo trutta are more abundant than rainbow trout Oncorhychus mykiss in the study reaches, where high flows occur every May and June during snowmelt. Brown trout are fall spawners, and their fry emerge long before the high snowmelt flows, whereas rainbow trout are spring spawners whose eggs are in the gravel, and thus vulnerable to scour, during snowmelt flows

  16. Vegetation history along the eastern, desert escarpment of the Sierra San Pedro Mártir, Baja California, Mexico

    Science.gov (United States)

    Holmgren, Camille A.; Betancourt, Julio L.; Rylander, Kate A.

    2011-01-01

    Plant macrofossils from 38 packrat middens spanning the last ~ 33,000 cal yr BP record vegetation between ~ 650 and 900 m elevation along the eastern escarpment of the Sierra San Pedro Mártir, northern Baja California. The middens span most of the Holocene, with a gap between ~ 4600 and 1800 cal yr BP, but coverage in the Pleistocene is uneven with a larger hiatus between 23,100 and 14,400 cal yr BP. The midden flora is relatively stable from the Pleistocene to Holocene. Exceptions include Pinus californiarum, Juniperus californica and other chaparral elements that were most abundant > 23,100 cal yr BP and declined after 14,400 cal yr BP. Despite being near the chaparral/woodland-desertscrub ecotone during glacial times, the midden assemblages reflect none of the climatic reversals evident in the glacial or marine record, and this is corroborated by a nearby semi-continuous pollen stratigraphy from lake sediments. Regular appearance of C4 grasses and summer-flowering annuals since 13,600 cal yr BP indicates occurrence of summer rainfall equivalent to modern (JAS average of ~ 80–90 mm). This casts doubt on the claim, based on temperature proxies from marine sediments in the Guaymas Basin, that monsoonal development in the northern Gulf and Arizona was delayed until after 6200 cal yr BP.

  17. Radiocarbon and cation-radio ages for rock varnish on Tioga and Tahoe marainal boulders of Pine Creek, eastern Sierra Nevada, California, and their paleoclimatic implications

    Science.gov (United States)

    Dorn, R.I.; Turrin, B.D.; Jull, A.J.T.; Linick, T.W.; Donahue, D.J.

    1987-01-01

    Accelerator mass spectrometry 14C analyses of organic matter extracted from rock varnishes on morainal boulders yield limiting minimum ages for three crests of the Tioga glaciation. At Pine Creek in the eastern Sierra Nevada, varnish started to form on boulders of the outermost Tioga moraine before 19,000 yr B.P., and varnish originated on the innermost Tioga moraine before 13,200 yr B.P. Comparisons with lake-level, paleohydrological, paleoecological, colluvial, and rock varnish micromorphological data indicate that central-eastern California and western Nevada experienced a moisture-effective period during the late Pleistocene but after the Tioga maximum, and perhaps as Tioga glaciers receded from the mouth of Pine Creek canyon. Varnishes on Tahoeage morainal boulders at Pine Creek have cation-ratio ages of about 143,000-156,000 yr B.P., suggesting that the Tahoe glaciation should not be correlated with oxygen-isotope stage 4 in the early Wisconsin, but rather with stage 6. Varnishes on morainal boulders of an older glaciation at Pine Creek are dated by cation ratio at about 182,000-187,000 yr B.P. ?? 1987.

  18. The Eastern delta-fan deposits on the Granada Basin as tectonic indicators of the Sierra Nevada uplift (Betic Cordillera, South Spain)

    Science.gov (United States)

    Roldán, Francisco Javier; Azañon, Jose Miguel; Mateos, Rosa Maria

    2014-05-01

    A geological mapping in detail of the Eastern sector of the Granada Basin (South Spain) reveals two different groups of Gilbert delta-fans related to the Sierra Nevada uplift. The first group, in the southern part and with a surface of 6 km2, has three major coarsening-upward sequences. They are composed of very coarse deposits, those of conglomerates, sands and silts. Progradational strata units to the basin have been observed. The dominantly fluvial facies association has locally developed shallow marine foreset deposits (partially with reef colonization) as well as topset red soils (Dabrio, et al., 1978; Braga et a., 1990; García-García, et al., 1999) . All the sequences are discordant over marine facies (calcarenites) dated over 8,26 Ma (Late Tortonian). The second group, in the northern part and with an extension of 12 km2, has similar characteristics, but some of the boulders have ostreids and lamellibranchs species which reveal their former position in a previous marine environment. The Sierra Nevada uplift caused the remobilization of these boulders, being transported by debris-flow inside the delta-fan bodies (García-García, et al., 2006). The dating of ostreids shells with Sr techniques reveals ages over 7,13, 6,61 and 5,45 Ma, from the lower to the upper delta-fan deposits, which are related to the three main sequences observed and with three major tectonic pulses during the Late Miocene. These interpretations are in agreement with apatite fision-track studies carried out in some boulders of these coarse delta-fan deposits (Clark and Dempster, 2013). They reveal a detailed record of Neogene denudation from the Sierra Nevada basement and with uplift periods between 5,45Ma- 2 Ma. The latest pulses affected the delta-fan sediments given rise to new fan systems in the Granada Basin (Alhambra Formation). The thoroughly study of the Miocene delta-fan sediments allows us to conclude that they were related to a sin-sedimentary tectonic activity linked to the

  19. Pleistocene lake outburst floods and fan formation along the eastern Sierra Nevada, California: implications for the interpretation of intermontane lacustrine records

    Science.gov (United States)

    Benn, Douglas I.; Owen, Lewis A.; Finkel, Robert C.; Clemmens, Samuel

    2006-11-01

    Variations in the rock flour fraction in intermontane lacustrine sediments have the potential to provide more complete records of glacier fluctuations than moraine sequences, which are subject to erosional censoring. Construction of glacial chronologies from such records relies on the assumption that rock flour concentration is a simple function of glacier extent. However, other factors may influence the delivery of glacigenic sediments to intermontane lakes, including paraglacial adjustment of slope and fluvial systems to deglaciation, variations in precipitation and snowmelt, and lake outburst floods. We have investigated the processes and chronology of sediment transport on the Tuttle and Lone Pine alluvial fans in the eastern Sierra Nevada, California, USA, to elucidate the links between former glacier systems located upstream and the long sedimentary record from Owens Lake located downstream. Aggradation of both fans reflects sedimentation by three contrasting process regimes: (1) high magnitude, catastrophic floods, (2) fluvial or glacifluvial river systems, and (3) debris flows and other slope processes. Flood deposits are represented by multiple boulder beds exposed in section, and extensive networks of large palaeochannels and boulder deposits on both fan surfaces. Palaeohydrological analysis implies peak discharges in the order of 10 3-10 4 m 3 s -1, most probably as the result of catastrophic drainage of ice-, moraine-, and landslide-dammed lakes. Cosmogenic radionuclide surface exposure dating shows that at least three flood events are represented on each fan, at 9-13, 16-18 and 32-44 ka (Tuttle Fan); and at ˜23-32, ˜80-86 ka, and a poorly constrained older event (Lone Pine Fan). Gravels and sands exposed in both fans represent fluvial and/or glacifluvial sediment transport from the Sierra Nevada into Owens Valley, and show that river systems incised and reworked older sediment stored in the fans. We argue that millennial-scale peaks in rock flour

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

    Science.gov (United States)

    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.

  1. 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)

  2. The role of remnant trees in carbon sequestration, vegetation structure and tree diversity of early succession regrowing fallows in eastern Sierra Leone

    DEFF Research Database (Denmark)

    Cuni Sanchez, Aida; Lindsell, Jeremy A.

    2017-01-01

    Remnant tree presence affects forest recovery after slash-and-burn agriculture. However, little is known about its effect on above-ground carbon stocks, especially in Africa. We focused our study on Sierra Leone, part of the Upper Guinean forests, an important centre of endemism threatened...

  3. Comparison of preliminary herpetofaunas of the Sierras la Madera (Oposura) and Bacadehuachi with the mainland Sierra Madre Occidental in Sonora, Mexico

    Science.gov (United States)

    Thomas R. Van Devender; Erik F. Enderson; Dale S. Turner; Roberto A. Villa; Stephen F. Hale; George M. Ferguson; Charles. Hedgcock

    2013-01-01

    Amphibians and reptiles were observed in the Sierra La Madera (59 species), an isolated Sky Island mountain range, and the Sierra Bacadéhuachi (30 species), the westernmost mountain range in the Sierra Madre Occidental (SMO) range in east-central Sonora. These preliminary herpetofaunas were compared with the herpetofauna of the Yécora area in eastern Sonora in the main...

  4. Luis Carlos López

    Directory of Open Access Journals (Sweden)

    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.

  5. 76 FR 10945 - San Luis Trust Bank, FSB, San Luis Obispo, CA; Notice of Appointment of Receiver

    Science.gov (United States)

    2011-02-28

    ... DEPARTMENT OF THE TREASURY Office of Thrift Supervision San Luis Trust Bank, FSB, San Luis Obispo, CA; Notice of Appointment of Receiver Notice is hereby given that, pursuant to the authority... appointed the Federal Deposit Insurance Corporation as sole Receiver for San Luis Trust Bank, FSB, San Luis...

  6. Guide to Using Sierra

    Energy Technology Data Exchange (ETDEWEB)

    Shaw, Ryan Phillip [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Agelastos, Anthony Michael [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Miller, Joel D. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-03-01

    Sierra is an engineering mechanics simulation code suite supporting the Nation's Nuclear Weapons mission as well as other customers. It has explicit ties to Sandia National Labs' workfow, including geometry and meshing, design and optimization, and visualization. Dis- tinguishing strengths include "application aware" development, scalability, SQA and V&V, multiple scales, and multi-physics coupling. This document is intended to help new and existing users of Sierra as a user manual and troubleshooting guide.

  7. Guide to Using Sierra

    Energy Technology Data Exchange (ETDEWEB)

    Shaw, Ryan Phillip; Agelastos, Anthony Michael; Miller, Joel D.

    2017-04-01

    Sierra is an engineering mechanics simulation code suite supporting the Nation's Nuclear Weapons mission as well as other customers. It has explicit ties to Sandia National Labs' workfow, including geometry and meshing, design and optimization, and visualization. Dis- tinguishing strengths include "application aware" development, scalability, SQA and V&V, multiple scales, and multi-physics coupling. This document is intended to help new and existing users of Sierra as a user manual and troubleshooting guide.

  8. Neogene Tiporco Volcanic Complex, San Luis, Argentina: An explosive event in a regional transpressive - local transtensive setting in the pampean flat slab

    Science.gov (United States)

    Ibañes, Oscar Damián; Sruoga, Patricia; Japas, María Silvia; Urbina, y. Nilda Esther

    2017-07-01

    The Neogene Tiporco Volcanic Complex (TVC) is located in the Sierras Pampeanas of San Luis, Argentina, at the southeast of the Pampean flat-slab segment. Based on the comprehensive study of lithofacies and structures, the reconstruction of the volcanic architecture has been carried out. The TVC has been modeled in three subsequent stages: 1) initial updoming, 2) ignimbritic eruptive activity and 3) lava dome emplacement. Interplay of magma injection and transtensional tectonic deformation has been invoked to reproduce TVC evolution.

  9. New K-Ar ages of volcanic rocks and associated mineralization in Canada Honda district, San Luis, Argentina

    International Nuclear Information System (INIS)

    Urbina, N.E.; Oggier, F.P

    2001-01-01

    New K-Ar ages in the Late Tertiary gold-bearing volcanic belt of the Sierras Pampeanas of San Luis, Argentina are presented. At Canada Honda district, an age of 8.49±0.2 Ma yielded by Cerro del Valle andesite indicates that the dome emplacement postdates the Diente Verde eruptive event. An even younger age of 7.3±0.2 Ma was obtained for illite from hydrothermal alteration at La Reynela mineralization which is hosted by Cerro del Valle andesite (au)

  10. Tecnología lítica y uso diferencial del espacio en Estancia La Suiza, San Luis, Argentina

    OpenAIRE

    Sario, Gisela Mariela

    2017-01-01

    El trabajo pretende contribuir, desde la perspectiva de la organización de la tecnología, al conocimiento de las ocupaciones cazadoras-recolectoras que habitaron las inmediaciones de la Sierra de la Estanzuela, en la provincia de San Luis, Argentina. Se explican cómo fueron las secuencias de producción de herramientas en los sitios de la localidad arqueológica Estancia La Suiza, a partir del análisis de los materiales líticos recuperados en excavación y prospecciones sistemáticas. Las metod...

  11. 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

  12. 33 CFR 110.120 - San Luis Obispo Bay, Calif.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false San Luis Obispo Bay, Calif. 110... ANCHORAGES ANCHORAGE REGULATIONS Special Anchorage Areas § 110.120 San Luis Obispo Bay, Calif. (a) Area A-1. Area A-1 is the water area bounded by the San Luis Obispo County wharf, the shoreline, a line drawn...

  13. Hombres: Doctor Luis Ángel Arango

    Directory of Open Access Journals (Sweden)

    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.

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

    Directory of Open Access Journals (Sweden)

    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.

  15. Comparison of the tropical floras of the Sierra la Madera and the Sierra Madre Occidental, Sonora, Mexico

    Science.gov (United States)

    Thomas R. Van Devender; Gertrudis Yanes-Arvayo; Ana Lilia Reina-Guerrero; Melissa Valenzuela-Yanez; Maria de la Paz Montanez-Armenta; Hugo Silva-Kurumiya

    2013-01-01

    The floras of the tropical vegetation in the Sky Island Sierra la Madera (SMA) near Moctezuma in northeastern Sonora (30°00’N 109°18’W) and the Yécora (YEC) area in the Sierra Madre Occidental (SMO) in eastern Sonora (28°25’N 109°15”W) were compared. The areas are 175 km apart. Tropical vegetation includes foothills thornscrub (FTS) in both areas and tropical deciduous...

  16. Sierra Leone Journal of Biomedical Research

    African Journals Online (AJOL)

    MHRL

    Sierra Leone Journal of Biomedical Research. (A publication of the College of Medicine and Allied Health Sciences, University of Sierra Leone). ©Sierra Leone Journal .... was used to. She seemed to have had a change of mind after ingesting.

  17. Sierra Structural Dynamics Theory Manual

    Energy Technology Data Exchange (ETDEWEB)

    Reese, Garth M. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-10-19

    Sierra/SD provides a massively parallel implementation of structural dynamics finite element analysis, required for high fidelity, validated models used in modal, vibration, static and shock analysis of structural systems. This manual describes the theory behind many of the constructs in Sierra/SD. For a more detailed description of how to use Sierra/SD , we refer the reader to Sierra/SD, User's Notes . Many of the constructs in Sierra/SD are pulled directly from published material. Where possible, these materials are referenced herein. However, certain functions in Sierra/SD are specific to our implementation. We try to be far more complete in those areas. The theory manual was developed from several sources including general notes, a programmer notes manual, the user's notes and of course the material in the open literature. This page intentionally left blank.

  18. 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.

  19. African Journals Online: Sierra Leone

    African Journals Online (AJOL)

    Sierra Leone Journal of Biomedical Research. The Sierra Leone Journal of Biomedical Research publishes papers in all fields of Medicine and Allied Health Sciences including Basic Medical Sciences, Clinical Sciences, Dental Sciences, Behavioural Sciences, Biomedical Engineering, Molecular Biology, Pharmaceutical ...

  20. 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)

  1. Abundance and food habits of cougars and bobcats in the Sierra San Luis, Sonora, Mexico

    Science.gov (United States)

    Hugo Luna Soria; Carlos A. Lopez Gonzalez

    2005-01-01

    Cougars (Puma concolor) and bobcats (Lynx rufus) are present throughout the Sky Islands of the Sonoran desert. We determined the abundance and food habits in northeastern Sonora, Mexico. Abundance indicated that cougars were common (4.19±5.57 cougars/100 km2 and 0.05±0.05 scats/km). According to the scat index, bobcats were more...

  2. Habitat and conservation status of the beaver in the Sierra San Luis Sonora, Mexico

    Science.gov (United States)

    Karla Pelz Serrano; Eduardo Ponce Guevara; Carlos A. Lopez Gonzalez

    2005-01-01

    The status of beaver (Castor canadensis) in northeastern Sonora, Mexico, is uncertain. We surveyed the Cajon Bonito River to assess the beaver’s status and habitat and found five colonies. Limiting factors appear to be pollution due to animal waste, deforestation of riparian trees, and human exploitation. Beavers did not appear to require habitat...

  3. Coyote abundance in relation to habitat characteristics in Sierra San Luis, Sonora, Mexico

    Science.gov (United States)

    Eduardo Ponce Guevara; Karla Pelz Serrano; Carlos A. Lopez Gonzalez

    2005-01-01

    Coyotes have expanded their historical distribution range because of anthropogenic activities and habitat transformation, where forests have been considered marginal habitat. We tested the relationship between vegetation structure and coyote abundance in different habitat types. We expected to find a higher abundance in open lands than in thicker areas. We used scent...

  4. 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

  5. Neuroimaging Features of San Luis Valley Syndrome

    Directory of Open Access Journals (Sweden)

    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.

  6. The impact of agriculture terraces on soil organic matter, aggregate stability, water repellency and bulk density. A study in abandoned and active farms in the Sierra de Enguera, Eastern Spain.

    Science.gov (United States)

    Cerdà, Artemi; Burguet, Maria; Keesstra, Saskia; Prosdocimi, Massimo; Di Prima, Simone; Brevik, Erik; Novara, Agata; Jordan, Antonio; Tarolli, Paolo

    2016-04-01

    Soil erosion, land degradation, lack of organic matter, erodible soils, rock outcrops… are a consequence of the human abuse and misuse of the soil resources. And this is a worldwide environmental issue (Novara et al., 2011; Vanlauwe et al., 2015; Musinguzi et al., 2015; Pereira et al., 2015; Mwagno et al., 2016). Agriculture terraces are a strategy to reduce the soil erosion, improve the soil fertility and allow the ploughing (Cerdà et al., 2010; Li et al., 2014). Although this idea is well accepted there are few scientific evidences that demonstrate that soils in the terraced areas are more stable, fertile and sustainable that the soil in non terraced areas. In fact, the ploughing in comparison to the abandoned or not ploughed land results in the soil degradation (Lieskovský and Kenderessy, 2014; Gao et al., 2015; Parras-Alcántara et al., 2014). This is mainly due to the lack of vegetation that increase the surface runoff (Cerdà et al., 1998; Keesstra et al., 2007). And why is necessary to develop also in terraced landscapes soil erosion control strategies (Mekonnen et al., 2015a; Mekonnen et al., 2015b; Prosdocimi et al., 2016). Our objective was to assess the soil organic matter content (Walkley and Black, 1934), the soil bulk density (ring method), the aggregate stabilility (drop impact) and the water repellency (Water Drop Penetration Time test) in four study sites in the Sierra de Enguera. Two sites were terraced: one abandoned 40 years before the measurements and the other still active with olive crops. And two control sites non-terraced. We used the paired plot strategy to compare the impact of terracing and abandonment. At each site we collected randomly 50 soil samples at 0-2 cm, 4-6 and 8-10 cm depth. At each sampling point 100 WDPT measurements where carried out, and one sample for the bulk density, and one for the organic matter, and one for the soil aggregate stability were collected. The soil surface samples shown the largest differences. The

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

    Directory of Open Access Journals (Sweden)

    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.

  8. Voice and Valency in San Luis Potosi Huasteco

    Science.gov (United States)

    Munoz Ledo Yanez, Veronica

    2014-01-01

    This thesis presents an analysis of the system of transitivity, voice and valency alternations in Huasteco of San Luis Potosi (Mayan) within a functional-typological framework. The study is based on spoken discourse and elicited data collected in the municipalities of Aquismon and Tancanhuitz de Santos in the state of San Luis Potosi, Mexico. The…

  9. 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...

  10. Sierra Nevada Subregional Boundary - Sierra Nevada Conservancy [ds542

    Data.gov (United States)

    California Natural Resource Agency — Sierra Nevada Conservancy (SNC) boundary. The boundary was mapped to correspond with statute AB 2600 (2004) and as re-defined in AB 1201 (2005). Work on the boundary...

  11. 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.

  12. TECNOLOGÍA LÍTICA Y USO DIFERENCIAL DEL ESPACIO EN ESTANCIA LA SUIZA, SAN LUIS, ARGENTINA / Lithic technology and differential use of space in Estancia La Suiza, San Luis, Argentina

    Directory of Open Access Journals (Sweden)

    Gisela Sario

    2013-07-01

    Full Text Available El trabajo pretende contribuir, desde la perspectiva de la organización de la tecnología, al conocimiento de las ocupaciones cazadoras-recolectoras que habitaron las inmediaciones de la Sierra de la Estanzuela, en la provincia de San Luis, Argentina. Se explican cómo fueron las secuencias de producción de herramientas en los sitios de la localidad arqueológica Estancia La Suiza, a partir del análisis de los materiales líticos recuperados en excavación y prospecciones sistemáticas. Las metodologías propuestas para abordar este estudio corresponden al análisis nodular y más específicamente a una combinación del análisis tipológico y no tipológico. Los resultados permiten interpretar que en esta localidad hubo un uso diferencial del espacio, particularmente en dos sitios que son Estancia La Suiza 2 y Estancia La Suiza 3. Abstract This paper aims at gaining insight, from the angle of technological organization, into the hunter-gatherer communities that dwelled in the surrounding areas of Sierras de la Estanzuela, in the province of San Luis, Argentina. The sequence of tool development in the archaeological site of Estancia La Suiza is described from analysis of lithic materials from excavation and systematic surveys. The methods adopted for conducting this study form part of Minimal Nodule analysis (MANA and more specifically a combination of typological and non-typological analysis. Results indicate that this site evidences a differential use of space, more specifically found in Estancia La Suiza 2 and Estancia La Suiza 3. 

  13. 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

  14. 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

  15. 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)...

  16. Jorge Luis Borges at two final judgments

    Directory of Open Access Journals (Sweden)

    Gustavo Ponciano Cunha de Oliveira

    2017-06-01

    Full Text Available Em 1988, Beatriz Sarlo propõe uma passagem entre duas poéticas em Jorge Luis Borges: de Evaristo Carriego (1930 em direção a Historia universal de la infamia (1935. Os dois textos são “insidiosos”, defende a pesquisadora, porque falsificam as biografias de seus personagens. Porém, a coletânea de 1935 opera em âmbito universal. Este movimento, afirma Sarlo, é portador de um acumulo de prerrogativas, associado à dupla inscrição de Borges: o cidadão do mundo e, simultaneamente, o de um país pensado a partir de Buenos Aires. Neste ensaio, sugerimos uma passagem anterior, evidenciada em “Sentirse en muerte” (1928: do criollismo – o poeta dos arrabaldes, dotado da capacidade de transporte sensível e instalado nos limites de sua cidade imaginada, que busca a representação poética digna de seu conceito de argentinidade – em direção à prosa que alcança o caráter argumentativo-reflexivo dos ensaios sobre o tempo e a eternidade característicos de Borges, início de sua legitimação como “percibidor abstracto del mundo”. Este movimento é também portador de um acúmulo de prerrogativas, dupla inscrição de Borges: como poeta, literato e ensaísta programático do criollismo; como meditador dedicado aos assombros contidos em nossos conceitos de vida, tempo e universo, operador de textos da Filosofia e da Teologia.

  17. Modeling interfacial fracture in Sierra.

    Energy Technology Data Exchange (ETDEWEB)

    Brown, Arthur A.; Ohashi, Yuki; Lu, Wei-Yang; Nelson, Stacy A. C.; Foulk, James W.,; Reedy, Earl David,; Austin, Kevin N.; Margolis, Stephen B.

    2013-09-01

    This report summarizes computational efforts to model interfacial fracture using cohesive zone models in the SIERRA/SolidMechanics (SIERRA/SM) finite element code. Cohesive surface elements were used to model crack initiation and propagation along predefined paths. Mesh convergence was observed with SIERRA/SM for numerous geometries. As the funding for this project came from the Advanced Simulation and Computing Verification and Validation (ASC V&V) focus area, considerable effort was spent performing verification and validation. Code verification was performed to compare code predictions to analytical solutions for simple three-element simulations as well as a higher-fidelity simulation of a double-cantilever beam. Parameter identification was conducted with Dakota using experimental results on asymmetric double-cantilever beam (ADCB) and end-notched-flexure (ENF) experiments conducted under Campaign-6 funding. Discretization convergence studies were also performed with respect to mesh size and time step and an optimization study was completed for mode II delamination using the ENF geometry. Throughout this verification process, numerous SIERRA/SM bugs were found and reported, all of which have been fixed, leading to over a 10-fold increase in convergence rates. Finally, mixed-mode flexure experiments were performed for validation. One of the unexplained issues encountered was material property variability for ostensibly the same composite material. Since the variability is not fully understood, it is difficult to accurately assess uncertainty when performing predictions.

  18. 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.

  19. [Dr. Luis Cifuentes Delatte. Memories and teaching].

    Science.gov (United States)

    Pérez Albacete, Mariano

    2008-12-01

    With the celebration of the centenary of the birth of Dr. Luis Cifuentes Delatte, due to his great scientific personality, we want to emphasize two features that, taken from his works and memories, we consider have not been emphasized enough: his role as historian of urology, both for the histories he narrated of his life experiences and the historical exposition of several pathologies, and also his teaching as professor of several generations of urologists, with the objective of trying to get to know his great human quality as he demonstrated over his life and showed in his writings. We review his books and works, lectures and published papers, in addition the news about his person we have collected from the media, and after analysis, mainly of his memories, we extract data reflecting his personality, and they way he thought and behaved. Since he was young he went with his father to the international urology meetings where he met a great number of personalities in the World of Urology; he extended his training with them, and later on they got to have a great relationship. He travelled around Europe and United States before and after Second World War, respectively, with stays in the most prestigious centers, which he described meticulously. He also reported his activity during the first two years he directed the Department of Urology at the Hospital La Princesa in Madrid and cited the series of collaborators he had. In his research works he made an ample description of historical development as introduction to the various pathologies he analyzed in depth. The reading of the narration of his trips, that he did in the convulse International time he lived, offers details which enable us to know firsthand the situation of urology and the human side of the actors he had relation with, and the social life they had, in addition to data about their families and daily life. As a researcher in transcendental chapters in urological pathology we emphasize his historical

  20. 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...

  1. 40 CFR 81.176 - San Luis Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 17 2010-07-01 2010-07-01 false San Luis Intrastate Air Quality Control Region. 81.176 Section 81.176 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED... Quality Control Regions § 81.176 San Luis Intrastate Air Quality Control Region. The San Luis Intrastate...

  2. 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...

  3. 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...

  4. [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

  5. 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.…

  6. 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…

  7. 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.

  8. Reading Comprehension Instruction Practices in Sierra Leone

    NARCIS (Netherlands)

    Hersbach, S.; Denessen, E.J.P.G.; Droop, W.

    2014-01-01

    Aim: In this study an attempt was made to give insight in the way reading comprehension is taught in Sierra Leone. Attention was paid to the didactical strategies and the materials used during reading comprehension instruction. Methodology: Primary school teachers in Sierra Leone (N=43) were

  9. 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

  10. 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

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

    Science.gov (United States)

    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.

  12. Sierra/SM theory manual.

    Energy Technology Data Exchange (ETDEWEB)

    Crane, Nathan Karl

    2013-07-01

    Presented in this document are the theoretical aspects of capabilities contained in the Sierra/SM code. This manuscript serves as an ideal starting point for understanding the theoretical foundations of the code. For a comprehensive study of these capabilities, the reader is encouraged to explore the many references to scientific articles and textbooks contained in this manual. It is important to point out that some capabilities are still in development and may not be presented in this document. Further updates to this manuscript will be made as these capabilites come closer to production level.

  13. Quaternary environments in Sierra Nevada

    OpenAIRE

    Oliva, Marc; Gómez Ortiz, Antonio; Palacios Estremera, David; Salvador Franch, Ferran; Salvà Catarineu, Monserrat

    2016-01-01

    El conocimiento relativo a la evolución ambiental cuaternaria en las montañas de la Península Ibérica ha avanzado sustancialmente en las últimas décadas. Particularmente significativos son los progresos realizados en el macizo de Sierra Nevada, en el sur peninsular. En este caso, los investigadores se han servido de registros naturales y fuentes documentales para reconstruir la dinámica ambiental desde la Última Glaciación y posterior deglaciación del macizo hasta su evolución reciente. Los c...

  14. El confesor regio Fray Luis Aliaga y la controversia Inmaculista

    Directory of Open Access Journals (Sweden)

    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.

  15. In memory of Luis Bernardo López

    Directory of Open Access Journals (Sweden)

    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.

  16. Exposiciones: Capuleto en la sala "Luis Ángel Arango"

    Directory of Open Access Journals (Sweden)

    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.

  17. Charcoal Increases Microbial Activity in Eastern Sierra Nevada Forest Soils

    Directory of Open Access Journals (Sweden)

    Zachary W. Carter

    2018-02-01

    Full Text Available Fire is an important component of forests in the western United States. Not only are forests subjected to wildfires, but fire is also an important management tool to reduce fuels loads. Charcoal, a product of fire, can have major impacts on carbon (C and nitrogen (N cycling in forest soils, but it is unclear how these effects vary by dominant vegetation. In this study, soils collected from Jeffrey pine (JP or lodgepole pine (LP dominated areas and amended with charcoal derived from JP or LP were incubated to assess the importance of charcoal on microbial respiration and potential nitrification. In addition, polyphenol sorption was measured in unamended and charcoal-amended soils. In general, microbial respiration was highest at the 1% and 2.5% charcoal additions, but charcoal amendment had limited effects on potential nitrification rates throughout the incubation. Microbial respiration rates decreased but potential nitrification rates increased over time across most treatments. Increased microbial respiration may have been caused by priming of native organic matter rather than the decomposition of charcoal itself. Charcoal had a larger stimulatory effect on microbial respiration in LP soils than JP soils. Charcoal type had little effect on microbial processes, but polyphenol sorption was higher on LP-derived than JP-derived charcoal at higher amendment levels despite surface area being similar for both charcoal types. The results from our study suggest that the presence of charcoal can increase microbial activity in soils, but the exact mechanisms are still unclear.

  18. 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.

  19. Running Parallel Discrete Event Simulators on Sierra

    Energy Technology Data Exchange (ETDEWEB)

    Barnes, P. D. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Jefferson, D. R. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2015-12-03

    In this proposal we consider porting the ROSS/Charm++ simulator and the discrete event models that run under its control so that they run on the Sierra architecture and make efficient use of the Volta GPUs.

  20. Aspen Delineation - Sierra State Parks [ds380

    Data.gov (United States)

    California Natural Resource Agency — The database represents delineations of aspen stands associated with stand assessment data (SIERRA_SP_PTS) collected in aspen stands on lands administered by the...

  1. Site fidelity of the declining amphibian Rana sierrae (Sierra Nevada yellow-legged frog)

    Science.gov (United States)

    Kathleen Matthews; Haiganoush Preisler

    2010-01-01

    From 1997 to 2006, we used mark–recapture models to estimate the site fidelity of 1250 Sierra Nevada yellow-legged frogs (Rana sierrae) in Kings Canyon National Park, California, USA, during their three main activity periods of overwintering, breeding, and feeding. To quantify site fidelity, the tendency to return to and reuse previously occupied...

  2. Emma Zunz by Jorge Luis Borges: the Concept of Justice

    OpenAIRE

    Rosa Vila

    2014-01-01

    Emma Zunz, by Jorge Luis Borges, is the story of a girl who decides to kill her boss in order to avenge her father’s death, believing that her father’s version of an event that occurred years before was true. Thus, she devises a secret plan, which includes losing her virginity to a complete stranger, shortly before committing the crime, so she could argue that her boss had raped her and that she killed him in self-defense. Firstly, the text shows the contrast between formal justic...

  3. Puelles romero, Luis: Honoré Daumier: la risa republicana

    Directory of Open Access Journals (Sweden)

    Óscar Ortega Ruiz

    2015-01-01

    Full Text Available Recientemente, Abada Editores ha puesto a disposición de sus lectores el nuevo ensayo de Luis Puelles Romero, titular de Estética y Teoría de las Artes de la Universidad de Málaga. Honoré Daumier: la risa republicana se interna en la vida y la obra de este marsellés nacido en 1808 y muerto en París en 1879, cuyo trabajo se desarrolló durante cincuenta años decisivos de la historia de Francia, desde el final del periodo legitimista hasta los inicios de la III República.

  4. Eric Bach : ilustrador de Luis de Góngora

    Directory of Open Access Journals (Sweden)

    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.

  5. 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

  6. 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…

  7. 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

  8. Los avisos para la muerte de Luis Ramirez de Arellano

    Directory of Open Access Journals (Sweden)

    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.

  9. Spatiotemporal patterns of fault slip rates across the Central Sierra Nevada frontal fault zone

    Science.gov (United States)

    Rood, Dylan H.; Burbank, Douglas W.; Finkel, Robert C.

    2011-01-01

    Patterns in fault slip rates through time and space are examined across the transition from the Sierra Nevada to the Eastern California Shear Zone-Walker Lane belt. At each of four sites along the eastern Sierra Nevada frontal fault zone between 38 and 39° N latitude, geomorphic markers, such as glacial moraines and outwash terraces, are displaced by a suite of range-front normal faults. Using geomorphic mapping, surveying, and 10Be surface exposure dating, mean fault slip rates are defined, and by utilizing markers of different ages (generally, ~ 20 ka and ~ 150 ka), rates through time and interactions among multiple faults are examined over 10 4-10 5 year timescales. At each site for which data are available for the last ~ 150 ky, mean slip rates across the Sierra Nevada frontal fault zone have probably not varied by more than a factor of two over time spans equal to half of the total time interval (~ 20 ky and ~ 150 ky timescales): 0.3 ± 0.1 mm year - 1 (mode and 95% CI) at both Buckeye Creek in the Bridgeport basin and Sonora Junction; and 0.4 + 0.3/-0.1 mm year - 1 along the West Fork of the Carson River at Woodfords. Data permit rates that are relatively constant over the time scales examined. In contrast, slip rates are highly variable in space over the last ~ 20 ky. Slip rates decrease by a factor of 3-5 northward over a distance of ~ 20 km between the northern Mono Basin (1.3 + 0.6/-0.3 mm year - 1 at Lundy Canyon site) to the Bridgeport Basin (0.3 ± 0.1 mm year - 1 ). The 3-fold decrease in the slip rate on the Sierra Nevada frontal fault zone northward from Mono Basin is indicative of a change in the character of faulting north of the Mina Deflection as extension is transferred eastward onto normal faults between the Sierra Nevada and Walker Lane belt. A compilation of regional deformation rates reveals that the spatial pattern of extension rates changes along strike of the Eastern California Shear Zone-Walker Lane belt. South of the Mina Deflection

  10. Fumarole/plume and diffuse CO2 emission from Sierra Negra volcano, Galapagos archipelago

    Science.gov (United States)

    Padron, E.; Hernandez Perez, P. A.; Perez, N.; Theofilos, T.; Melian, G.; Barrancos, J.; Virgil, G.; Sumino, H.; Notsu, K.

    2009-12-01

    The active shield-volcano Sierra Negra is part of the Galapagos hotspot. Sierra Negra is the largest shield volcano of Isabela Island, hosting a 10 km diameter caldera. Ten historic eruptions have occurred and some involved a frequently visited east caldera rim fissure zone called Volcan Chico. The last volcanic event occurred in October 2005 and lasted for about a week, covering approximately twenty percent of the eastern caldera floor. Sierra Negra volcano has experienced some significant changes in the chemical composition of its volcanic gas discharges after the 2005 eruption. This volcanic event produced an important SO2 degassing that depleted the magmatic content of this gas. Not significant changes in the MORB and plume-type helium contribution were observed after the 2005 eruption, with a 65.5 % of MORB and 35.5 % of plume contribution. In 2006 a visible and diffuse gas emission study was performed at the summit of Sierra Negra volcano, Galapagos, to evaluate degassing rate from this volcanic system. Diffuse degassing at Sierra Negra was mainly confined in three different DDS: Volcan Chico, the southern inner margin of the caldera, and Mina Azufral. These areas showed also visible degassing, which indicates highly fractured areas where volcano-hydrothermal fluids migrate towards surface. A total fumarole/plume SO2 emission of 11 ± 2 td-1 was calculated by mini-DOAS ground-based measurements at Mina Azufral fumarolic area. Molar ratios of major volcanic gas components were also measured in-situ at Mina Azufral with a portable multisensor. The results showed H2S/SO2, CO2/SO2 and H2O/SO2 molar ratios of 0.41, 52.2 and 867.9, respectively. Multiplying the observed SO2 emission rate times the observed (gas)i/SO2 mass ratio we have estimated other volatiles emission rates. The results showed that H2O, CO2 and H2S emission rates from Sierra Negra are 562, 394, and 2.4 t d-1, respectively. The estimated total output of diffuse CO2 emission from the summit of

  11. Sierra/SolidMechanics 4.46 Example Problems Manual.

    Energy Technology Data Exchange (ETDEWEB)

    Plews, Julia A.; Crane, Nathan K; de Frias, Gabriel Jose; Le, San; Littlewood, David John; Merewether, Mark Thomas; Mosby, Matthew David; Pierson, Kendall H.; Porter, Vicki L.; Shelton, Timothy; Thomas, Jesse David; Tupek, Michael R.; Veilleux, Michael

    2018-03-01

    Presented in this document are tests that exist in the Sierra/SolidMechanics example problem suite, which is a subset of the Sierra/SM regression and performance test suite. These examples showcase common and advanced code capabilities. A wide variety of other regression and verification tests exist in the Sierra/SM test suite that are not included in this manual.

  12. 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...

  13. 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...

  14. 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...

  15. Sierra toolkit computational mesh conceptual model

    International Nuclear Information System (INIS)

    Baur, David G.; Edwards, Harold Carter; Cochran, William K.; Williams, Alan B.; Sjaardema, Gregory D.

    2010-01-01

    The Sierra Toolkit computational mesh is a software library intended to support massively parallel multi-physics computations on dynamically changing unstructured meshes. This domain of intended use is inherently complex due to distributed memory parallelism, parallel scalability, heterogeneity of physics, heterogeneous discretization of an unstructured mesh, and runtime adaptation of the mesh. Management of this inherent complexity begins with a conceptual analysis and modeling of this domain of intended use; i.e., development of a domain model. The Sierra Toolkit computational mesh software library is designed and implemented based upon this domain model. Software developers using, maintaining, or extending the Sierra Toolkit computational mesh library must be familiar with the concepts/domain model presented in this report.

  16. The Special Court for Sierra Leone

    DEFF Research Database (Denmark)

    Damgaard, Ciara Therése

    2004-01-01

    The focus of this article is the Special Court for Sierra Leone and the extent to which it can be said that the Special Court has already challenged, or will, in the future, challenge the tradition of impunity for gender-based crimes. In this regard, an analysis is undertaken of the Special Court......'s Statute, Rules of Procedure and Evidence and practice to date, in order to determine its treatment of gender-based crimes and whether it can be said that the Special Court for Sierra Leone challenges the tradition of impunity for gender-based crimes. Udgivelsesdato: december 2004...

  17. José Luis Hidalgo, poeta de los muertos

    Directory of Open Access Journals (Sweden)

    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

  18. Luis Llach : el arquitecto de Quibdó

    Directory of Open Access Journals (Sweden)

    Luis Fernando González Escobar

    1993-09-01

    Full Text Available En el año 1907, en varias ediciones del periódico Ecos del Chocó, de la ciudad de Quibdó, apareció un anuncio en donde un tal Luis Llach Ll., ostentando el título de ingeniero civil, ofertaba sus servicios para la "Construcción de toda clase de edificios, Levantamientos de planos. elaboración de presupuestos, etc. y toda lo concerniente al ramo de ingeniería, contando para el efecto con instrumentos modernos y personal idóneo" ¿La dirección? El lado sur del Convento. ¿Quién era este "ingeniero" y cuáles eran las razones que lo condujeron a establecerse en una localidad que por esos años no era más que un villorrio con algo menos de 12.000 habitantes?

  19. La prisión de Fray Luis

    Directory of Open Access Journals (Sweden)

    Victor Sánchez Montenegro

    1960-11-01

    Full Text Available Es una creencia general difundida por muchas historias de la literatura española y universal de que la principal causa de la prisión de Fray Luis de León en Valladolid por la Inquisición de esa ciudad, fue el haber traducido el Cantar de los Cantares, atribuidoa Salomón , es decir el Sir hassirim que los LXX tradujeron al griego Aisma Aismaton, y el Cantica Canticorum de la Vulgata. Sin embargo, como  pasaré a demostrar, no fue esa precisamente la causa de la tremenda injusticia sino otras presentarlas por sus enemigos , quienes en sus ataques hasta llegaron a probar que no descendía de Cristianos viejos sino que tenía sangre de judíos.

  20. Luis Huerta: Eugenics, Medicine and Pedagogy in Spain

    Directory of Open Access Journals (Sweden)

    Luis Miguel LÁZARO LORENTE

    2013-11-01

    Full Text Available By comparison with the historiography of other European and Anglo-Saxon countries, the study of the origins and spread of Eugenics in Spain has not received much attention. Even less research has been done on the degree of acceptance of eugenic thought in the pedagogical domain or on the role teachers may have in the diffusion of eugenics. This paper attempts to explore the subject while focusing the analysis on the relations that were established among Medicine, Pedagogy and Eugenics in Spain during the first third of the 20th century. We will take as a point of reference and guiding line of thought the figure of the Asturian teacher Luis Huerta Naves, who was the driving force and tireless advocate of the eugenics movement in our country.

  1. 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

  2. Active deformation in the northern Sierra de Valle Fértil, Sierras Pampeanas, Argentina

    Science.gov (United States)

    Ortiz, Gustavo; Alvarado, Patricia; Fosdick, Julie C.; Perucca, Laura; Saez, Mauro; Venerdini, Agostina

    2015-12-01

    The Western Sierras Pampeanas region in the San Juan Province is characterized by thick-skinned deformation with approximately N-S trending ranges of average heights of 2500 m and a high frequency occurrence of seismic activity. Its location to the east of the mainly thin-skinned tectonics of the Argentine Precordillera fold-and-thrust belt suggests that at 30°S, deformation is concentrated in a narrow zone involving these two morphostructural units. In this paper, we present new apatite (U-Th)/He results (AHe) across the northern part of the Sierra de Valle Fértil (around 30°S) and analyze them in a framework of thermochronologic available datasets. We found Pliocene AHe results for Carboniferous and Triassic strata in the northern Sierra de Valle Fértil consistent with the hypothesis of recent cooling and inferred erosional denudation concentrated along the northern end of this mountain range. Our analysis shows that this northern region may have evolved under different conditions than the central part of the Sierra de Valle Fértil. Previous studies have observed AHe ages consistent with Permian through Cretaceous cooling, indicating the middle part of the Sierra de Valle Fértil remained near surface before the Pampean slab subduction flattening process. Those studies also obtained ˜5 My cooling ages in the southern part of the Sierra de Valle Fértil, which are similar to our results in the northern end of the range. Taken together, these results suggest a pattern of young deformation in the northern and southern low elevation ends of the Sierra de Valle Fértil consistent with regions of high seismic activity, and Quaternary active faulting along the western-bounding thrust fault of the Sierra de Valle Fértil.

  3. 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...

  4. 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.

  5. A la costa de Luis A. Martínez: ¿la defensa de un proyecto liberal para Ecuador?

    Directory of Open Access Journals (Sweden)

    1998-01-01

    Full Text Available A LA COSTA DE LUIS A. MARTINEZ : LA DEFENSE D’UN PROJET LIBERAL POUR L’ÉQUATEUR ? A la Costa est souvent analysé comme une peinture de moeurs, témoignage de la réalité sociale et politique de l´Équateur de la fin du XIX et du début du XX. En effet, ce roman prétend décrire le conflit traditionnel qui oppose socialement, économiquement et politiquement les Andes et la Côte. Mais il se présente aussi et surtout comme la défense d´un projet libéral pour l´Équateur et développe une démonstration idéologique systématique. En outre, il propose une lecture du sens de la vie et une réflexion sur le devenir de l´homme dont la portée dépasse largement l´argumentation idéologique. Ce sont sans aucun doute ces nuances, introduites tout au long de la narration, qui permettent à l´oeuvre d´échapper à son statut exemplaire, simple témoignage d´une époque, pour proposer une vision personnelle et créative. Muchos han visto en A la Costa una novela de tendencia costumbrista, testimonio de la realidad social y política del Ecuador a finales del siglo XIX y comienzos del XX. En efecto, la novela pretende describir el conflicto tradicional social, económico, político entre Sierra y Costa. Pero es también, y ante todo, la defensa de un proyecto liberal para Ecuador, desarrollando una sistemática demostración ideológica. Además, propone una lectura del sentido de la vida y una reflexión sobre el porvenir del hombre cuyo alcance va más allá de la defensa de un proyecto ideológico. Sin duda son estos matices, introducidos a lo largo de la narración, los que permiten que la obra escape del estatuto de novela ejemplar y testimonial para proponer una visión autónoma y creativa. THE NOVEL A LA COSTA OF LUIS A. MARTÍNEZ: THE DEFENSE OF A LIBERAL PROJECT FOR ECUADOR? The novel A la Costa has often been analyzed as a portrait of national costumes, a testimony to the social and political realities of Ecuador at the end of

  6. Explaining Violence in Sierra Leone's Civil War

    African Journals Online (AJOL)

    Explaining the violence of civil war is never a simple task for the scholar. In the case of the Sierra Leone, paradoxically, the task has in some ways been rendered more difficult by the sheer variety of compelling scholarship on the question. This paper seeks to identify the most useful of the explanations offered thus far, and ...

  7. Rebellion and Agrarian Tensions in Sierra Leone

    NARCIS (Netherlands)

    Peters, K.; Richards, P.

    2011-01-01

    This paper assesses the extent to which customary governance in Sierra Leone can be held responsible for an increasingly unstable two-class agrarian society. A case is made for regarding the civil war (1991–2002) as being an eruption of long-term, entrenched agrarian tensions exacerbated by chiefly

  8. Sierra Leone Journal of Biomedical Research: Submissions

    African Journals Online (AJOL)

    AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search · USING ... Sierra Leone Journal of Biomedical Research (SLJBR) publishes papers in all ... An original article should give sufficient detail of experimental procedures for .... For references cited in a paper which has been accepted for publication but not ...

  9. Rice genetic resources in postwar Sierra Leone

    NARCIS (Netherlands)

    Chakanda, R.T.M.

    2009-01-01

    This research presents the effect of the 10-year long civil war in Sierra Leone on rice genetic resources, using farmers and their seed systems in three selected districts as reference points. The war disrupted all forms of production and development in the country and like other sectors of the

  10. Sierra Leone Journal of Biomedical Research

    African Journals Online (AJOL)

    The Sierra Leone Journal of Biomedical Research publishes papers in all fields of Medicine and Allied Health Sciences including Basic Medical Sciences, Clinical Sciences, Dental Sciences, Behavioural Sciences, Biomedical Engineering, Molecular Biology, Pharmaceutical Sciences, Biotechnology in relation to Medicine, ...

  11. High Compressive Stresses Near the Surface of the Sierra Nevada, California

    Science.gov (United States)

    Martel, S. J.; Logan, J. M.; Stock, G. M.

    2012-12-01

    Observations and stress measurements in granitic rocks of the Sierra Nevada, California reveal strong compressive stresses parallel to the surface of the range at shallow depths. New overcoring measurements show high compressive stresses at three locations along an east-west transect through Yosemite National Park. At the westernmost site (west end of Tenaya Lake), the mean compressive stress is 1.9. At the middle site (north shore of Tenaya Lake) the mean compressive stress is 6.8 MPa. At the easternmost site (south side of Lembert Dome) the mean compressive stress is 3.0 MPa. The trend of the most compressive stress at these sites is within ~30° of the strike of the local topographic surface. Previously published hydraulic fracturing measurements by others elsewhere in the Sierra Nevada indicate surface-parallel compressive stresses of several MPa within several tens of meters of the surface, with the stress magnitudes generally diminishing to the west. Both the new and the previously published compressive stress magnitudes are consistent with the presence of sheeting joints (i.e., "exfoliation joints") in the Sierra Nevada, which require lateral compressive stresses of several MPa to form. These fractures are widespread: they are distributed in granitic rocks from the north end of the range to its southern tip and across the width of the range. Uplift along the normal faults of the eastern escarpment, recently measured by others at ~1-2 mm/yr, probably contributes to these stresses substantially. Geodetic surveys reveal that normal faulting flexes a range concave upwards in response to fault slip, and this flexure is predicted by elastic dislocation models. The topographic relief of the eastern escarpment of the Sierra Nevada is 2-4 km, and since alluvial fill generally buries the bedrock east of the faults, the offset of granitic rocks is at least that much. Compressive stresses of several MPa are predicted by elastic dislocation models of the range front

  12. Exposiciones 1958, presentadas en la Biblioteca Luis Ángel Arango

    Directory of Open Access Journals (Sweden)

    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.

  13. 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)

  14. En el día del bibliotecario: Homenaje al Doctor Luis Ángel Arango

    Directory of Open Access Journals (Sweden)

    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.

  15. Emma Zunz by Jorge Luis Borges: the Concept of Justice

    Directory of Open Access Journals (Sweden)

    Rosa Vila

    2014-12-01

    Full Text Available Emma Zunz, by Jorge Luis Borges, is the story of a girl who decides to kill her boss in order to avenge her father’s death, believing that her father’s version of an event that occurred years before was true. Thus, she devises a secret plan, which includes losing her virginity to a complete stranger, shortly before committing the crime, so she could argue that her boss had raped her and that she killed him in self-defense. Firstly, the text shows the contrast between formal justice and taking justice into own hands. Secondly, the question of self-inflicted punishment, which in the story takes place before the perpetration of the crime. Finally, the issue whether truth is the version that can be inferred from the evidence presented in a trial, or the one which is kept to themselves by those involved in a crime. Emma Zunz, de Jorge Luis Borges, es la historia de una chica que decide matar a su jefe para vengar la muerte de su padre, creyendo que la versión de su padre de un hecho que ocurrió años atrás era cierta. De este modo, diseña un plan secreto, que incluye la pérdida de su virginidad con un desconocido, poco antes de cometer el crimen, para poder argumentar que su jefe la había violado y que ella lo mató en defensa propia. En primer lugar, el texto muestra el contraste entre la justicia formal y la justicia por cuenta propia. En segundo lugar, la cuestión de la pena infligida a uno mismo, lo que en la historia se produce antes de la comisión del delito. Por último, la cuestión de si la verdad es la versión que se puede inferir de las pruebas presentadas en un juicio, o la que se guardan para sí mismas las personas involucradas en un crimen. DOWNLOAD THIS PAPER FROM SSRN: http://ssrn.com/abstract=2519490

  16. ÎNCEPUTURILE FILOSOFICE ALE LUI LUCIAN BLAGA

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    Svetlana COANDĂ

    2016-12-01

    Full Text Available În articol sunt evidenţiate etapele evoluţiei spirituale a lui Lucian Blaga, este demonstrată importanţa primei perioade de activitate a gânditorului român, perioada anilor 1914-1919, care constituie începutul activităţii filosofice a lui L.Blaga, acesta fiind deosebit de semnificativ pentru înţelegerea genezei ideilor sale, a influenţelor pe care le-a suportat, a continuităţii tematicii şi reflecţiilor filosofice, care au culminat cu elaborarea unui profund sistem filosofic. Sunt analizate în detaliu ideile filosofice centrale, temele de meditaţie din lucrările scrise şi publicate de L.Blaga între anii 1914 şi 1919: analiza şi aprecierea ideilor filosofului francez Henri Bergson, coraportul dintre filosofie şi ştiinţă, aportul specific al filosofiei la formarea concepţiei despre lume a personalităţii, rolul deosebit de important al metodelor de cercetare în asigurarea obţinerii adevărului în procesul de cunoaştere, unitatea formelor culturii etc.THE PHILOSOFICAL BEGINNINGS OF LUCIAN BLAGAThis article highlights the spiritual evolution steps of Lucian Blaga and demonstrates the importance of the first period of activity of the Romanian thinker - the period between 1914 and 1919. This time frame constitutes the beginning of his philosophical activity and it is especially significant to understand the genesis of his ideas, of his influences, the continuity of the philosophical themes and reflections that culminated with the elaboration of a profound philosophical system. Analysis is done over the central philosophical ideas, the meditation themes from the works written and published by Lucian Blaga between 1914 and 1919: the analysis and appreciation of the ideas of the French philosopher Henri Bergson, the correlation between philosophy and science, the specific input of philosophy in the formation of the world conception on personality, the extremely important role of the research methods in ensuring the

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

    Directory of Open Access Journals (Sweden)

    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

  18. Sierra/SolidMechanics 4.48 Verification Tests Manual.

    Energy Technology Data Exchange (ETDEWEB)

    Plews, Julia A.; Crane, Nathan K; de Frias, Gabriel Jose; Le, San; Littlewood, David John; Merewether, Mark Thomas; Mosby, Matthew David; Pierson, Kendall H.; Porter, Vicki L.; Shelton, Timothy; Thomas, Jesse David; Tupek, Michael R.; Veilleux, Michael; Xavier, Patrick G.

    2018-03-01

    Presented in this document is a small portion of the tests that exist in the Sierra / SolidMechanics (Sierra / SM) verification test suite. Most of these tests are run nightly with the Sierra / SM code suite, and the results of the test are checked versus the correct analytical result. For each of the tests presented in this document, the test setup, a description of the analytic solution, and comparison of the Sierra / SM code results to the analytic solution is provided. Mesh convergence is also checked on a nightly basis for several of these tests. This document can be used to confirm that a given code capability is verified or referenced as a compilation of example problems. Additional example problems are provided in the Sierra / SM Example Problems Manual. Note, many other verification tests exist in the Sierra / SM test suite, but have not yet been included in this manual.

  19. Luis Fayad. Dalla narrativa urbana agli innesti socioculturali. Presentazione

    Directory of Open Access Journals (Sweden)

    Martha L. Canfield

    2013-03-01

    Full Text Available The article looks at Luis Fayad’s novel La caída de los puntos cardinales (2000 in order to foreground the influence of Arabic on the Colom- bian author whose grandparents were Lebanese. Born in Bogotá in 1945, Fayad published the novel after being identified as one of the first Colombian novelists dealing with urban literature. It represents a change of direction in his career, as Fayad narrates the entire life of six main characters, four men and two women, who decide to leave Lebanon and migrate to South America, ending up in Colombia. The analysis will focus on the importance of the circulation of the book in Italy by virtue of issues of intercultural exchange embedded in the novel. La caída de los puntos cardinales mixes Arabic tradition and Colombian customs; in the novel, Fayad achieves a cross-cultural story that may provide a successful model of integration. The Spanish-Italian translation and a critical approach to the language used by the novelist and employed by the translator will complete the essay.

  20. Luis G. Urbina: crônicas porfirianas

    Directory of Open Access Journals (Sweden)

    Miguel Angel Castro

    2015-11-01

    Full Text Available As descrições amenas de uma cidade instável, às vezes divertida e atrativa, outras, entediante e miserável, assim como a crítica de costumes de seus habitantes, abrem um espaço original à tolerância e nele se fundamenta a natureza democrática da crônica jornalística do último quarto do século XIX e se determina o prolongamento de alguns dos seus traços literários no início do século XX. Com o intuito de conservar o valor literário de origem se constrói uma poética do gênero. Neste artigo, apresentamos algumas observações feitas a esse respeito nas crônicas que Luis G. Urbina publicou em El Mundo ilustrado entre 1899 e 1906.      This work is licensed under a Creative Commons Attribution 3.0 License.

  1. Archaeological obsidian from La Sierra Gorda Mexico, by PIXE

    International Nuclear Information System (INIS)

    Juarez-Cossio, D.; Terreros, E.; Quiroz-Moreno, J.; Romero-Sanchez, S.; Calligaro, T.F.; Tenorio, D.; Jimenez-Reyes, M.; Los Rios, M. de

    2009-01-01

    The chemical compositions of 42 obsidian pre-Hispanic artifacts from Tancama and Purisima, both archaeological sites of La Sierra Gorda Valleys, Mexico, were analyzed by PIXE technique. These obsidians came from four sources: Sierra de Pachuca Hidalgo, Paraiso Queretaro, Ucareo Michoacan and mainly from Zacualtipan/Metzquititlan Hidalgo. According to archaeological evidences, La Sierra Gorda valleys participated in commercial exchange with other regional sites, from Classic to Post-classic periods (A.D. 300-1500).

  2. Sierra Madre Oriental in Coahuila, Mexico

    Science.gov (United States)

    2002-01-01

    This desolate landscape is part of the Sierra Madre Oriental mountain range, on the border between the Coahuila and Nuevo Leon provinces of Mexico. This image was acquired by Landsat 7's Enhanced Thematic Mapper plus (ETM+) sensor on November 28, 1999. This is a false-color composite image made using shortwave infrared, infrared, and green wavelengths. The image has also been sharpened using the sensor's panchromatic band. Image provided by the USGS EROS Data Center Satellite Systems Branch

  3. Birds of Sierra de Vallejo, Nayarit, Mexico

    OpenAIRE

    Figueroa-Esquivel, E.M.; Puebla-Olivares, F

    2014-01-01

    Sierra de Vallejo, is considered a priority region for conservation, and is strongly affected by anthropogenic pressures. The inventory of birds are refers to studies in near areas. This study is a concrete contribution of the birds of the mountain chain and north of it. We considered bibliographic records and databases available on the web with records of ocurrence and specimens of scientific collections. Also we perform point counts in different localities inside the...

  4. Groundwater quality in the Sierra Nevada, California

    Science.gov (United States)

    Fram, Miranda S.; Belitz, Kenneth

    2014-01-01

    Groundwater provides more than 40 percent of California’s drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project (PBP) of the GAMA Program provides a comprehensive assessment of the State’s groundwater quality and increases public access to groundwater-quality information. The Sierra Nevada Regional study unit constitutes one of the study units being evaluated.

  5. Structure of Sierra Blanca (Alpujarride Complex, west of the Betic Cordillera

    Directory of Open Access Journals (Sweden)

    Andreo, B.

    1995-04-01

    Full Text Available Sierra Blanca, situated in the SW of Málaga, forms part of the Blanca unit, belonging to the Alpujarride Complex of the Betic Cordillera. Its lithologic sequences are made up of a group of migmatites, gneisses and schists and an upper formation of marbles (white dolomitic and the bottom and blue calcareous towards the top, linked with a transitional contact. The structure of Sierra Blanca is comprised of folds, generally isoclinal, with reversed limbs and with important tectonic transpositions, the direction of which is approximately E-W in the eastern area and N-S and E-W in the West. In both areas the folds present opposing vergences, consistently towards the interior of the sierra. The origin of these structures is explained with a model of westerly movements of the Blanca unit, in relation to the Los Reales unit, with the formation of frontal and lateral folds. In its advancement, the western part of Sierra Blanca underwent an important anti-clockwise rotation responsible for the co-existence of folds in N-S and E-W directions. These structures occurred under ductile conditions, owing to the presence of important overthrusting peridotitic masses of the Los Reales unit. This model of westerly displacement is inserted in the process undergone by the Betic-Rif Internal Zones (with Blanca and Los Reales units included which occurred at the end of the Oligocene-Early Miocene when the Gibraltar arch began to be formed.Sierra Blanca, situada al SW de Málaga, forma parte de la unidad de Blanca que pertenece al complejo Alpujárride de la Cordillera Bética. Su secuencia litológica está compuesta por un conjunto inferior de migmatitas, gneises y esquistos, y por una formación superior de mármoles, blancos dolomíticos en la base y mármoles calizos azules hacia la parte superior, entre los que existe un tránsito gradual. La estructura de Sierra Blanca está formada por pliegues, generalmente isoclinales, con flancos invertidos que muestran

  6. Eastern Europe

    International Nuclear Information System (INIS)

    Baret, J.P.; Corcuff, A.; Jousten, M.; Cherie, J.B.; Gorge, X.; Augustin, X.; Belime, F.

    1999-01-01

    By its economical and political impact, nuclear energy has an important contribution the countries of Eastern Europe that goes beyond simple energy source. The most important challenge is to gain a safety culture. Improvements have been noted but the reactors safety must stay a priority of the international cooperation in Eastern Europe. The plan for the completion and improvement of Mochovce nuclear plant is described, the situation of Chernobyl and how to make the sarcophagus in safe is discussed, the experience of a french P.M.E. ( small and medium size firm) called Corys Tess that has chosen to position itself on the Eastern Europe nuclear market is related. (N.C.)

  7. Invasive exotic plant species in Sierra Nevada ecosystems

    Science.gov (United States)

    Carla M. D' Antonio; Eric L. Berlow; Karen L. Haubensak

    2004-01-01

    The Sierra Nevada is a topographically and floristically diverse region of the western United States. While it comprises only a fifth of the total land area of California, half of the native plant species in the state occur within the range. In addition, more than 400 plant species are endemic to the Sierra Nevada and many of these are listed as threatened or have...

  8. Biosphere and atmosphere interactions in Sierra Nevada forests

    Science.gov (United States)

    Allen H. Goldstein

    2004-01-01

    In the Sierra Nevada, studies are being conducted to assess the impacts of both anthropogenic and biogenic hydrocarbon emissions on regional tropospheric ozone and fine aerosol production. Impacts of ozone deposition and management practices on ecosystem health are also being studied. Human-induced changes in regional air quality have consequences for Sierra Nevada...

  9. Sierra Elvira limestone: petrophysical characteristics of an Andalusian heritage stone

    Directory of Open Access Journals (Sweden)

    Valverde, I.

    2008-06-01

    Full Text Available “Sierra Elvira stone” is one of the ornamental building stones most widely used in the historical monuments of eastern Andalusia. A Liassic age limestone, it appears in the central section of the Baetic Mountains and more specifically in the Middle Subbaetic domain. While the most common variety is a crinoid limestone, a micritic limestone of the same age has also been quarried, albeit in much smaller quantities. These stones form very thick beds, up to nearly 5 m deep, that run in consistently parallel lines and have a dip angle that facilitates quarrying.With petrographic, physical and mechanical properties that ensure stone strength and durability, it is a high quality building material suitable for both structural and ornamental purposes. These properties can be attributed to the minimal open porosity and concomitant excellent water resistance that characterize the stone, as well as to its high mechanical strength and low textural anisotropy, both elastic and mechanical. With such attributes, the stone can be successfully used for any number of purposes, including decorative stonework (portals, fountains, plinths, structural members (column shafts and bases or urban curbing and paving. Intervention on Sierra de Elvira limestone structures should be limited to cleaning or repair, for consolidating or protective materials are scantly effective.La “Piedra de Sierra Elvira” constituye una de las piedras ornamentales más significativas del Patrimonio Arquitectónico de Andalucía Oriental. Es una roca caliza del Lias que aflora en el Subbético Medio del sector central de las Cordilleras Béticas. El litotipo más explotado es una caliza con crinoides, en bastante menor importancia se ha extraído también otra caliza micrítica de la misma edad. Los bancos son muy potentes, en algunos casos de más de 5 m, con un paralelismo constante y un buzamiento que favorece su explotación en los frentes de cantera.Sus caracter

  10. Micrometeorological Observations in a Sierra Nevada Meadow

    Science.gov (United States)

    Blackburn, D. A.; Oliphant, A. J.

    2016-12-01

    Mountain meadows play important roles on watershed and ecosystem services, including improving water quality, moderating runoff and providing biodiversity hotspots. In the Sierra Nevada, mountain meadows are an integral part of the mountain ecosystem and watersheds that impact more than 20 million people. Grazing, logging and other forms of anthropogenic land use in the Sierra Nevada have degraded the functioning of meadows, by altering the morphology, hydrology and vegetation. Existing meandering stream networks become incised and straightened by increased runoff, which effectively lowers the water table and completely alters the ecosystem from moist meadow sedges, grasses, and herbs to dryland grass and shrubs. Given the large growth cycle in healthy meadows, it is also expected that they sequester a significant amount of carbon and enhance atmospheric humidity through evapotranspiration, but relatively little work has been done on the bio-micrometeorology of meadows. The purpose of this study is to assess the growing season carbon, water and energy budgets of a partly degraded meadow in the northern Sierra Nevada. Loney Meadow, located at nearly 2,000 m in the Tahoe National Forest, has been identified as a degraded meadow and is scheduled to undergo restoration work to raise the water table in 2017. A micrometeorological tower with eddy covariance instruments was deployed at the site for most of the snow-free period from May to October 2016. The measurements include: fluxes of CO2, water vapor, surface radiation and energy budget components; ancillary meteorological and soil data; and an automated camera capturing daily images of the meadow surface. The poster will present diurnal and seasonal CO2 on a daily basis with a very rapid increase at the onset of the growing season.

  11. 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

  12. Uranium-lead isotopic ages from the Sierra Nevada Batholith, California

    Science.gov (United States)

    Chen, J.

    1982-01-01

    This study provides new information on the timing and distribution of Mesozoic magmatic events in the Sierra Nevada batholithic complex chiefly between 36° and 37°N. latitude. U-Pb ages have been determined for 133 zircon and 7 sphene separates from 82 samples of granitoid rocks. Granitoid rocks in this area range in age from 217 to 80 m.y. Triassic intrusions are restricted to the east side of the batholith; Jurassic plutons occur south of the Triassic plutons east of the Sierra Nevada, as isolated masses within the Cretaceous batholith, and in the western foothills of the range; Cretaceous plutons form a continuous belt along the axis of the batholith and occur as isolated masses east of the Sierra Nevada. No granitic intrusions were emplaced for 37 m.y. east of the Sierra Nevada following the end of Jurassic plutonism. However, following emplacement of the eastern Jurassic granitoids, regional extension produced a fracture system at least 350 km long into which the dominantly mafic, calc-alkalic Independence dike swarm was intruded 148 m.y. ago. The dike fractures probably represents a period of regional crustal extension caused by a redistribution of the regional stress pattern accompanying the Nevadan orogeny. Intrusion of Cretaceous granitic plutons began in large volume about 120 m.y. ago in the western Sierra Nevada and migrated steadily eastward for 40 m.y. at a rate of 2.7 mm/y. This slow and constant migration indicates remarkably uniform conditions of subduction with perhaps downward migration of parent magma generation or a slight flattening of the subduction zone. Such steady conditions could be necessary for the production of large batholithic complexes such as the Sierra Nevada. The abrupt termination of plutonism 80 m.y. ago may have resulted from an increased rate of convergence of the American and eastern Pacific plates and dramatic flattening of the subduction zone. U-Pb ages of the Giant Forest-alaskite sequence in Sequoia National Park are

  13. 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...

  14. 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...

  15. 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...

  16. 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...

  17. 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...

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

    Directory of Open Access Journals (Sweden)

    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.

  19. Birds of Sierra de Vallejo, Nayarit, Mexico

    Directory of Open Access Journals (Sweden)

    Figueroa-Esquivel, E.M.

    2014-01-01

    Full Text Available Sierra de Vallejo, is considered a priority region for conservation, and is strongly affected by anthropogenic pressures. The inventory of birds are refers to studies in near areas. This study is a concrete contribution of the birds of the mountain chain and north of it. We considered bibliographic records and databases available on the web with records of ocurrence and specimens of scientific collections. Also we perform point counts in different localities inside the reserve. We observed a richness of 261 birds species, the family Tyrannidae is the best represented. Of the species recorded, 177 are permanent residents (31 are endemic and 15 are quasi-endemics to Mexico and 73 are migratory; the remaining eleven records have other status. Also 43 species are in endangered categories. We include species that have not been recorded in the lists of the area and records of species expand their ranges at Nayarit. Due to the great diversity of birds observed, it is necesary to continue the research work about habitat use, abundance and monitoring, it will provides the basis for the conservation of birds of Sierra de Vallejo.

  20. Missionary Pragmalinguistics: Father Diego Luis de Sanvitores’ grammar within the tradition of Philippine grammars

    NARCIS (Netherlands)

    Winkler, A.P.

    2016-01-01

    The grammar written in Latin, in 1668, by the Jesuit missionary Father Diego Luis de Sanvitores (1627-1672) is the oldest description we have of Chamorro, a language spoken on the Mariana islands. The grammar received a number of bad reviews and as a consequence has become neglected and almost

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

    Directory of Open Access Journals (Sweden)

    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.

  2. The nuclear industry is about to begin a new dynamic. Interview with Luis Echavarri

    Energy Technology Data Exchange (ETDEWEB)

    Mitev, Lubomir [NucNet, Brussels (Belgium)

    2014-05-15

    The nuclear industry has changed significantly in the 17 years since Luis Echavarri became director-general of the Organisation for Economic Development and Cooperation's (OECD) Paris-based Nuclear Energy Agency (NEA). As he approaches retirement, Mr Echavarri speaks to NucNet about the priorities for the industry as it enters the post-Fukushima era. (orig.)

  3. 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.

  4. 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...

  5. Making Borges. The Early Reception of Jorge Luis Borges's Work in France and the United States

    NARCIS (Netherlands)

    Wijnterp, L.

    2016-01-01

    This thesis analyzes the role of individual mediators in the early reception of the works of the Argentine writer Jorge Luis Borges (1899-1986). It focuses on a number of key mediators such as publishers, editors, translators, and critics in the translation and publication process and in criticism

  6. Luis José de Tejada y Guzmán : espejo de peregrinos penitentes

    Directory of Open Access Journals (Sweden)

    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.

  7. 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 ...

  8. 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...

  9. 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...

  10. 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.

  11. Emphatic or Reflexive? On the Endophoric Character of French "lui-meme" and Similar Complex Pronouns.

    Science.gov (United States)

    Zribi-Hertz, Anne

    1995-01-01

    This study examined the referential properties of a class of complex pronouns labelled M-Pronouns, exemplified by Old English "himself," French "lui-meme," and English "his own." It is shown that M-Pronouns exhibit some properties commonly taken as characterizing reflexive anaphors, and that they also occur as…

  12. Projected treatment capacity needs in sierra leone.

    Science.gov (United States)

    White, Richard A; MacDonald, Emily; de Blasio, Birgitte Freiesleben; Nygård, Karin; Vold, Line; Røttingen, John-Arne

    2015-01-30

    The ongoing outbreak of Ebola Virus Disease in West Africa requires immediate and sustained input from the international community in order to curb transmission. The CDC has produced a model that indicates that to end the outbreak by pushing the reproductive number below one, 25% of the patients must be placed in an Ebola Treatment Unit (ETC) and 45% must be isolated in community settings in which risk of disease transmission is reduced and safe burials are provided. In order to provide firmer targets for the international response in Sierra Leone, we estimated the national and international personnel and treatment capacity that may be required to reach these percentages. We developed a compartmental SEIR model that was fitted to WHO data and local data allowing the reproductive number to change every 8 weeks to forecast the progression of the EVD epidemic in Sierra Leone. We used the previously estimated 2.5x correction factor estimated by the CDC to correct for underreporting. Number of personnel required to provide treatment for the predicted number of cases was estimated using UNMEER and UN OCHA requests for resources required to meet the CDC target of 70% isolation. As of today (2014-12-04), we estimate that there are 810 (95% CI=646 to 973) EVD active cases in treatment, with an additional 3751 (95% CI=2778 to 4723) EVD cases unreported and untreated. To reach the CDC targets today, we need 1140 (95% CI=894 to 1387) cases in ETCs and 2052 (95% CI=1608 to 2496) at home or in a community setting with a reduced risk for disease transmission. In 28 days (2015-01-01), we will need 1309 (95% CI=804 to 1814) EVD cases in ETCs and 2356 (95% CI=1447 to 3266) EVD cases at reduced risk of transmission. If the current transmission rate is not reduced, up to 3183 personnel in total will be required in 56 days (2015-01-29) to operate ETCs according to our model. The current outbreak will require massive input from the international community in order to curb the

  13. Interaction of an Introduced Predator with Future Effects of Climate Change in the Recruitment Dynamics of the Imperiled Sierra Nevada Yellow-legged Frog (Rana sierrae)

    Science.gov (United States)

    I Lacan; Kathleen R. Matthews; K.V. Feldman

    2008-01-01

    Between-year variation in snowpack (from 20 to 200% of average) and summer rainfall cause large fluctuations in volume of small lakes in the higher elevation (> 3000 m) Sierra Nevada, which are important habitat for the imperiled Sierra Nevada Yellow-legged Frog, Rana sierrae. Climate change (global warming) is predicted to increase these...

  14. Geomagnetic Polarity Epochs: Sierra Nevada II.

    Science.gov (United States)

    Cox, A; Doell, R R; Dalrymple, G B

    1963-10-18

    Ten new determinations on volcanic extrusions in the Sierra Nevada with potassium-argon ages of 3.1 million years or less indicate that the remanent magnetizations fall into two groups, a normal group in which the remanent magnetization is directed downward and to the north, and a reversed group magnetized up and to the south. Thermomagnetic experiments and mineralogic studies fail to provide an explanation of the opposing polarities in terms of mineralogic control, but rather suggest that the remanent magnetization reflects reversals of the main dipole field of the earth. All available radiometric ages are consistent with this field-reversal hypothesis and indicate that the present normal polarity epoch (N1) as well as the previous reversed epoch (R1) are 0.9 to 1.0 million years long, whereas the previous normal epoch (N2) was at least 25 percent longer.

  15. Sierra Toolkit Manual Version 4.48.

    Energy Technology Data Exchange (ETDEWEB)

    Sierra Toolkit Team

    2018-03-01

    This report provides documentation for the SIERRA Toolkit (STK) modules. STK modules are intended to provide infrastructure that assists the development of computational engineering soft- ware such as finite-element analysis applications. STK includes modules for unstructured-mesh data structures, reading/writing mesh files, geometric proximity search, and various utilities. This document contains a chapter for each module, and each chapter contains overview descriptions and usage examples. Usage examples are primarily code listings which are generated from working test programs that are included in the STK code-base. A goal of this approach is to ensure that the usage examples will not fall out of date. This page intentionally left blank.

  16. Assessing unmet anaesthesia need in Sierra Leone: a secondary ...

    African Journals Online (AJOL)

    Department of Surgery, Connaught Hospital Freetown, Sierra Leone. 3. Department of .... need, is a key part of planning for increasing surgical capacity. Limitations. As noted by Groen et al24 this data .... Emergency and surgery services of ...

  17. Sierra Leone Journal of Biomedical Research Original Article

    African Journals Online (AJOL)

    User

    university hospital in southern Sierra Leone, a total of 66 (4.71±2.52) victims reported having been bitten by snakes in 11 ... social, economic, psychological and health impacts of snakebite ..... Epidemiological profile of snakebite cases from.

  18. Sierra Leone Journal of Biomedical Research Original Article

    African Journals Online (AJOL)

    User

    A publication of the College of Medicine and Allied Health Sciences, University of Sierra Leone ... disability associated with venomous snakebites result in lasting .... 1Mean ± Standard Error. 95% Confidence Limit. Community. Self. Reported.

  19. British Military Intervention into Sierra Leone: A Case Study

    National Research Council Canada - National Science Library

    Roberson, Walter G

    2007-01-01

    .... The successful British intervention led to the defeat of the Revolutionary United Front (RUF) and final peace accords, restored order to a failed state, and allowed the democratic restoration of the government of Sierra Leone...

  20. Population size, survival, growth, and movements of Rana sierrae

    Science.gov (United States)

    Fellers, Gary M.; Kleeman, Patrick M.; Miller, David A. W.; Halstead, Brian J.; Link, William

    2013-01-01

    Based on 2431 captures of 757 individual frogs over a 9-yr period, we found that the population of R. sierrae in one meadow–stream complex in Yosemite National Park ranged from an estimated 45 to 115 adult frogs. Rana sierrae at our relatively low elevation site (2200 m) grew at a fast rate (K = 0.73–0.78), had high overwintering survival rates (44.6–95%), lived a long time (up to 16 yr), and tended to be fairly sedentary during the summer (100% minimum convex polygon annual home ranges of 139 m2) but had low year-to-year site fidelity. Even though the amphibian chytrid fungus (Batrachochytrium dendrobatidis, Bd) has been present in the population for at least 13 yr, there was no clear downward trend as might be expected from reports of R. sierrae population declines associated with Bd or from reports of widespread population decline of R. sierrae throughout its range.

  1. Sierra Leone Journal of Biomedical Research Case Study

    African Journals Online (AJOL)

    Zackary Suleiman

    A publication of the College of Medicine and Allied Health Sciences, University of Sierra Leone ... Case Study ... Peri-operative management of patients with significant cardio-respiratory disease ... contribute to patient safety by preventing any.

  2. 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.

  3. Sierra Structural Dynamics User's Notes

    Energy Technology Data Exchange (ETDEWEB)

    Reese, Garth M. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-10-19

    Sierra/SD provides a massively parallel implementation of structural dynamics finite element analysis, required for high fidelity, validated models used in modal, vibration, static and shock analysis of weapons systems. This document provides a users guide to the input for Sierra/SD. Details of input specifications for the different solution types, output options, element types and parameters are included. The appendices contain detailed examples, and instructions for running the software on parallel platforms.

  4. Sierra/SD User's Notes.

    Energy Technology Data Exchange (ETDEWEB)

    Munday, Lynn Brendon; Day, David M.; Bunting, Gregory; Miller, Scott T; Crane, Nathan K

    2018-03-01

    Sierra/SD provides a massively parallel implementation of structural dynamics finite element analysis, required for high fidelity, validated models used in modal, vibration, static and shock analysis of weapons systems. This document provides a users guide to the input for Sierra/SD. Details of input specifications for the different solution types, output options, element types and parameters are included. The appendices contain detailed examples, and instructions for running the software on parallel platforms.

  5. Preliminary flora of the Sierra Bacadehuachi, Sonora, Mexico

    Science.gov (United States)

    Thomas R. Van Devender; Ana Lilia Reina-Guerrero; George M. Ferguson; George Yatskievych; Beatriz E. Loyola-Reina; Gertrudis Yanes-Arvayo; Maria de la Paz Montanez-Armenta; John L. Anderson; Stephen F. Hale; Sky Jacobs

    2013-01-01

    The Sierra Bacadéhuachi in east-central Sonora is the westernmost mountain range in the Sierra Madre Occidental (SMO), located east of Bacadéhuachi, Municipio de Bacadéhuachi, 34 km east of the Chihuahua border, and 165 km south of the Arizona border. The vegetation ranges from lowland foothills thornscrub up through desert grassland to oak woodland and pine-oak forest...

  6. Profesor Luis López de Mesa. Reminiscencias

    Directory of Open Access Journals (Sweden)

    J. Hernando Ordoñez

    1998-12-01

    Full Text Available

    Personalidad


    El 18 de Octubre pasado se cumplieron 30 años de la muerte del Profesor Luis López de Mesa, fecha luctuosa para la cultura americana. Con tal motivo quiero revivir su memoria y rendirle un cálido homenaje de gratitud y admiración, haciendo reminiscencias de hechos y anécdotas vividas gracias a la cordial amistad que me permitió apreciar la grandeza de su personalidad, que brilló con luz propia en todos los campos del saber humano, que lo llevó a escalar sitio de honor entre los grandes humanistas del continente.

    Sería un atrevimiento de mi parte, dada la poquedad de mis recursos literarios, intentar una biografía del profesor López de Mesa, tanto más, cuando eminentes autores han escrito obras magistrales relatando y exaltando las múltiples facetas de su excepcional cultura.

    Mi propósito es modesto: no he de referirme a su actuación como fundador del Colegio Máximo de las Academias Colombianas, ni de su hija “Bahía Solano”, ni del brillo con que desempeñó cargos tan importantes como Rector de la Universidad Nacional, Ministro de Educación Nacional y de Relaciones Exteriores, miembro de las más prestigiosas sociedades científicas y culturales, tanto nacionales como extranjeras, autor de numerosas obras a cual más eruditas, originales y profundas, y tantos títulos, cargos y actuaciones, que me sería largo enumerar.

    La sencillez y su modestia fueron admirables, como han sido las de los grandes genios. No conoció la vanidad ni el orgullo. Casi me atrevería a pensar que no se dio cuenta de su propia grandeza, a pesar de los múltiples y más variados elogios, honores y homenajes que le rendían tanto en el ambiente nacional como en el internacional, donde contaba con la admiración de los más brillantes exponentes de la cultura, que, distantes, se admiran recíprocamente, como de lejos se divisan y se contemplan las más elevadas cumbres de las monta

  7. 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.

  8. 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

  9. 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.

  10. 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)

  11. JORGE LUIS BORGES – SERGIO PITOL: INFLUENCES, SYMMETRIES AND LITERARY TRANSFERENCES JORGE LUIS BORGES – SERGIO PITOL: INFLUENCIAS, SIMETRÍAS Y TRANSFERENCIAS LITERARIAS

    Directory of Open Access Journals (Sweden)

    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.

  12. Mineralogical characterization of historical portuguese wall tiles of Sao Luis, Maranhao, Brazil; Caracterizacao mineralogica de azulejos portugueses do Centro Historico de Sao Luis do Maranhao

    Energy Technology Data Exchange (ETDEWEB)

    Rivas Mercury, J.M.; Vasconcelos, N.S.L.S.; Cabral, A.A., E-mail: rivascefetma@gmail.co [Instituto Federal de Educacao, Ciencia e Tecnologia do Maranhao (IFMA), Sao Luis, MA (Brazil). Programa de Mestrado em Engenharia de Materiais; Pereira, D.J. Costa [Centro de Criatividade Odylo Costa Filho (SECMA), Sao Luis, MA (Brazil). Centro Historico; Angelica, R.S. [Universidade Federal do Para (CG/UFPA), Belem, PA (Brazil). Inst. de Geociencias

    2010-07-01

    Portuguese wall tiles from centuries, XVII, XVIII and XIX, found in Sao Luis Maranhao has been studied by X-ray diffraction, in order to interpret the possible raw material and burning temperature. The mineral phases, Quartz, Wollastonite, Calcite and Gehlenite were identified in all samples. Based on the results it is possible to affirm that the main raw materials used to manufacture this materials was probably mixtures of kaolinite clay and calcite. Based on the mineralogical information it was also possible to state that burning temperature of this wall tiles was lower than 1000 deg C. (author)

  13. 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...

  14. Contaminant studies in the Sierra Nevadas

    Science.gov (United States)

    Sparling, D.W.; Fellers, G.

    2002-01-01

    full text: Several species of anuran amphibians (frogs and toads) are experiencing severe population declines in even seemingly pristine areas of the Sierra Mountains of California. Among the most severely depressed species are the redlegged frog, the foothill and mountain yellow-legged frogs, the Yosemite toad, and the Cascades frog. Several factors, such as habitat fragmentation, introduced predators (especially fish), and disease, have been linked to these declines. But recent evidence from a USGS-led study shows that contaminants are a primary factor. During the past three years, researchers from the USGS Patuxent Wildlife Research Center, the Western Ecology Research Center, the USDA Beltsville Agriculture Research Center, and the Texas A&M University have teamed up to conduct an extensive study on airborne pesticides and their effects on amphibian populations in the Sierra Nevada Mountains. Previous work on environmental chemistry demonstrated that pesticides from the intensely agricultural Central Valley of California are being blown into the more pristine Sierra Nevada Mountains, especially around Sequoia and Yosemite National Parks. Several pesticides, including diazinon, chlorpyrifos, malathion and endosulfan, can be measured in snow, rainfall, and pond waters in these national parks. With the exception of endosulfan, these pesticides affect and even kill both invertebrates and vertebrate species by inhibiting cholinesterase, an enzyme essential to proper nervous system functioning. In the summer of 2001, we published a paper showing that these same pesticides are now found in adults and the tadpoles of Pacific treefrogs. The results of this landmark study showed that more than 50 percent of the tadpoles and adults sampled in Yosemite and Sequoia National Parks had detectable levels of diazinon or chlorpyrifos and that 86 percent of the Pacific treefrogs sampled in the Lake Tahoe region had detectable levels of endosulfan. In contrast, frogs that were

  15. Vida y obra de Luis Jiménez Moreno (1929-2007

    Directory of Open Access Journals (Sweden)

    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…

  16. 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.

  17. 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...

  18. 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.

  19. 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.

  20. 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.

  1. Reduced blood nrf-2 mRNA in local overweight boys at risk of metabolic complications: a study in San Luis City, San Luis, Argentina.

    Science.gov (United States)

    Santillán, Lucas D; Moyano, Marta; Frau, Martín; Flores, Orlando; Siewert, Susana; Zirulnick, Fanny; Ramirez, Dario C; Giménez, Maria S

    2013-10-01

    Childhood overweight (OW) is a matter of public health concern because of its long-term impact on adulthood health. NF-E2-related factor 2 (Nrf-2) regulates the antioxidant/lipogenic response to a sustained positive energy balance that prevails during weight gain. Here we aimed at studying a possible link between OW and Nrf-2-dependent antioxidant/lipogenic response in a local population of boys at risk of metabolic complications. We measured clinical and biochemical parameters related to lipid metabolism, oxidative stress, and metabolic syndrome in a population of OW boys [body mass index (BMI) percentile ≥85(th) and Luis City, San Luis, Argentina. Compared to NW, OW boys had lower insulin sensitivity, an altered plasma lipid profile, and increased markers of oxidative stress and inflammatory fatty acids. OW boys also had a higher atherogenic index and peripheral insulin resistance than NW boys. We also found that glutathione peroxidase activity and the reduced glutathione to oxidized glutathione ratio were lower in OW boys than NW boys, suggesting that OW boys may have an altered antioxidant response to oxidative stress. Finally, Nrf-2 expression negatively correlated with metabolic syndrome parameters in OW boys. Our data suggest that OW boys have a reduced antioxidant and lipogenic response to a positive energy balance, resulting in oxidative stress, insulin resistance, and risk of developing metabolic complications. Our data also provide a rationale for nutritional interventions aimed at restoring Nrf-2 expression to reduce the risk of metabolic complications in OW boys.

  2. Behemoth, Lilith e Anjos: três monstros judaicos em Jorge Luis Borges

    Directory of Open Access Journals (Sweden)

    Marcos Fábio de Faria

    2009-10-01

    Full Text Available Análise dos verbetes de monstros judaicos recriados por Jorge Luis Borges em Manual de zoologia fantástica e O livro dos seres imaginários, a saber: Behemoth, Lilith e os anjos Haniel, Kazfiel, Azriel e Aniel. As múltiplas representações e versões desses verbetes, bem como seu diálogo com a Torah e sua inscrição na literatura.

  3. Luis Ramiro Beltrán: Semblanza de un comunicador vanguardista

    Directory of Open Access Journals (Sweden)

    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.

  4. A propósito de José Luis Brea: del archivo a la RAM

    Directory of Open Access Journals (Sweden)

    Fernando Broncano

    2014-06-01

    Full Text Available The philosopher José Luis Brea proposes a notion of memory spread around a network of connections, which reveals a conception of culture based on a RAM structure and contrary to the culture of archive. The underwent changes in the classification of disciplines caused by individual’s attitudes deriving from the new media hyperconnectivity environment will be reviewed here and the relevance in the present humanities of concepts such as exile, frontier and question without answer.

  5. "Non qua servus est, sed qua homo." Der rechtliche Status von Sklaven bei Luis de Molina

    OpenAIRE

    Simmermacher, Danaë

    2014-01-01

    Luis de Molina (1535-1600) grants slaves a legal status through which they can take up a position with respect to their masters between equivalent legal entity and legal object. Here, what is decisive is the figure of the subjective right, which both for Molina and modern proponents of this legal concept describes the 'right per se'. According to Molina's definition of ius, the denial of a subjective right or the hindrance of exercising an individual right represents an injustice. The rights ...

  6. 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...

  7. 76 FR 44535 - Revisions to the California State Implementation Plan, Northern Sierra Air Quality Management...

    Science.gov (United States)

    2011-07-26

    ... the California State Implementation Plan, Northern Sierra Air Quality Management District, Sacramento Metropolitan Air Quality Management District, and South Coast Air Quality Management District AGENCY... the Northern Sierra Air Quality Management District (NSAQMD), Sacramento Metropolitan Air Quality...

  8. 76 FR 44493 - Revisions to the California State Implementation Plan, Northern Sierra Air Quality Management...

    Science.gov (United States)

    2011-07-26

    ... California State Implementation Plan, Northern Sierra Air Quality Management District, Sacramento Metropolitan Air Quality Management District, and South Coast Air Quality Management District AGENCY... approve revisions to the Northern Sierra Air Quality Management District (NSAQMD), Sacramento Metropolitan...

  9. Pionero de la comunicación (Entrevista a Luis Ramiro Beltrán

    Directory of Open Access Journals (Sweden)

    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.

  10. 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.

  11. Environmental values and risk: A review of Sierra Club policies

    International Nuclear Information System (INIS)

    Craig, P.P.

    1999-01-01

    Sierra Club values are driven by an overriding environmental ethic. Sierra Club environmental values may be characterized by the concept of 'usufruct' a term favored by United States Founding Father Thomas Jefferson. Usufruct conveys the idea that the environment is ours to use, but not to destroy. Each generation has the obligation to pass on to future generations a world at least as environmentally rich as the one it inherited. It is appropriate to accept risk today in order to preserve the environment for generations yet to come. As viewed through the lens of its formal policies, the Sierra Club is an organization that embraces technology, but insists that technology be evaluated comprehensively, taking full account of both environmental and social externalities. The Club is 'risk averse' with respect to early introduction of technologies seen as likely to have significant negative environmental or social impact. The Club places heavy emphasis on process, which must involve the public meaningfully

  12. SIERRA - A 3-D device simulator for reliability modeling

    Science.gov (United States)

    Chern, Jue-Hsien; Arledge, Lawrence A., Jr.; Yang, Ping; Maeda, John T.

    1989-05-01

    SIERRA is a three-dimensional general-purpose semiconductor-device simulation program which serves as a foundation for investigating integrated-circuit (IC) device and reliability issues. This program solves the Poisson and continuity equations in silicon under dc, transient, and small-signal conditions. Executing on a vector/parallel minisupercomputer, SIERRA utilizes a matrix solver which uses an incomplete LU (ILU) preconditioned conjugate gradient square (CGS, BCG) method. The ILU-CGS method provides a good compromise between memory size and convergence rate. The authors have observed a 5x to 7x speedup over standard direct methods in simulations of transient problems containing highly coupled Poisson and continuity equations such as those found in reliability-oriented simulations. The application of SIERRA to parasitic CMOS latchup and dynamic random-access memory single-event-upset studies is described.

  13. Ebola Surveillance - Guinea, Liberia, and Sierra Leone.

    Science.gov (United States)

    McNamara, Lucy A; Schafer, Ilana J; Nolen, Leisha D; Gorina, Yelena; Redd, John T; Lo, Terrence; Ervin, Elizabeth; Henao, Olga; Dahl, Benjamin A; Morgan, Oliver; Hersey, Sara; Knust, Barbara

    2016-07-08

    Developing a surveillance system during a public health emergency is always challenging but is especially so in countries with limited public health infrastructure. Surveillance for Ebola virus disease (Ebola) in the West African countries heavily affected by Ebola (Guinea, Liberia, and Sierra Leone) faced numerous impediments, including insufficient numbers of trained staff, community reticence to report cases and contacts, limited information technology resources, limited telephone and Internet service, and overwhelming numbers of infected persons. Through the work of CDC and numerous partners, including the countries' ministries of health, the World Health Organization, and other government and nongovernment organizations, functional Ebola surveillance was established and maintained in these countries. CDC staff were heavily involved in implementing case-based surveillance systems, sustaining case surveillance and contact tracing, and interpreting surveillance data. In addition to helping the ministries of health and other partners understand and manage the epidemic, CDC's activities strengthened epidemiologic and data management capacity to improve routine surveillance in the countries affected, even after the Ebola epidemic ended, and enhanced local capacity to respond quickly to future public health emergencies. However, the many obstacles overcome during development of these Ebola surveillance systems highlight the need to have strong public health, surveillance, and information technology infrastructure in place before a public health emergency occurs. Intense, long-term focus on strengthening public health surveillance systems in developing countries, as described in the Global Health Security Agenda, is needed.The activities summarized in this report would not have been possible without collaboration with many U.S and international partners (http://www.cdc.gov/vhf/ebola/outbreaks/2014-west-africa/partners.html).

  14. Sierra/Aria 4.48 Verification Manual.

    Energy Technology Data Exchange (ETDEWEB)

    Sierra Thermal Fluid Development Team

    2018-04-01

    Presented in this document is a portion of the tests that exist in the Sierra Thermal/Fluids verification test suite. Each of these tests is run nightly with the Sierra/TF code suite and the results of the test checked under mesh refinement against the correct analytic result. For each of the tests presented in this document the test setup, derivation of the analytic solution, and comparison of the code results to the analytic solution is provided. This document can be used to confirm that a given code capability is verified or referenced as a compilation of example problems.

  15. El satisfecho: fama y fortuna de una comedia desconocida de Luis Belmonte (El satisfecho: fame and fortune of an unknown comedy by Luis Belmonte

    Directory of Open Access Journals (Sweden)

    Elisa Domínguez de Paz

    2014-01-01

    Full Text Available Resumen: Este artículo ofrece un estudio del manuscrito autógrafo de la comedia, El satisfecho, firmado por el dramaturgo Luis Belmonte en Sevilla, el 24 de Julio de 1634. El documento proporciona buena información acerca de su recorrido por el tiempo, desde que obtiene la licencia de representación en Lisboa, en 1639, hasta que aparece en Toro, en 1653, como propiedad de Santiago Manteca. El manuscrito resulta muy interesante por la gran cantidad de probationes pennae, de contenido variado y ajeno al asunto teatral, que contiene. Estos ejercicios de escritura, salidos todos ellos de la pluma de Santiago Manteca, revelan que el escribano es un hombre preocupado por el mundo documental y formulístico. Su poco interés por conservar limpio el documento indica, por un lado, que , tal vez, la comedia ya no tenía éxito y, por otro lado, la más que probable desconexión de Manteca del mundo teatral.Abstract: This article studies an autographic manuscript of the comedy, El satisfecho, signed by the playwright Luis Belmonte in Seville, on July 24 1634. The document provides sound information about its journey through time, from the moment when it obtained its representation permit in Lisbon, in 1639, until it appeared in Toro, property of Santiago Manteca. The interest of the manuscript is very high due to the great number of probationes pennae that it contains, of very varied content and unrelated to the world of theatre. These writing exercises, coming out of Santiago Manteca’s pen, reveal that the secretary was a man concerned about the documental and formulaic world. His lack of interest in keeping the document clean may indicate, on the one hand, that the comedy was not successful any more, and, on the other, Manteca’s likely disconnection from the theatrical world.

  16. “Y SAN LUIS OBEDIENTE RESPONDÍA” LOS TERRATENIENTES DE LA CIUDAD DE SAN LUIS Y EL PLAN SANMARTINIANO (1814 - 1829

    Directory of Open Access Journals (Sweden)

    Melody Celeste Vera

    2015-12-01

    Full Text Available La base fundamental de la identidad de los habitantes de la provincia de San Luis (Argentina y de su historiografía, es el axioma que el pueblo puntano se inmoló por el proyecto sanmartiniano. El Gobernador Intendente Vicente Dupuy (1814-1820 fue el principal colaborador de José de San Martin en la provincia, y el coordinador de las donaciones de bienes y vidas para la causa. Contaba con el apoyo del “cabildo sanmartiniano”, un grupo de vecinos que secundaban sus ideales, apoyaban sus iniciativas y colaboraban materialmente. Pero luego de la caída del gobierno central en 1820 no se ofrece una interpretación sobre el cambio de proyecto político que representó el nuevo Gobernador, José Santos Ortiz (1820-1829. Si se consideran conjuntamente las oposiciones de un grupo de vecinos levantadas durante el gobierno de Dupuy y el accionar de Santos Ortiz durante su mandato, cabe preguntarse: ¿los cabildantes terratenientes apoyaron la gesta sanmartiniana por convicción, o se vieron forzados a hacerlo por la imposición de un grupo en el poder? ¿Representó Santos Ortiz el proyecto de lo que el grupo terrateniente buscaba y no pudo obtener mientras se llevaba delante el plan sanmartiniano? En este trabajo se busca comparar los objetivos primarios de ambos gobernadores durante sus mandatos, con el fin de vislumbrar cuál de los planes de gobierno representaba los ideales y necesidades de los grandes terratenientes de la ciudad de San Luis.

  17. Sierra/Solid Mechanics 4.48 User's Guide.

    Energy Technology Data Exchange (ETDEWEB)

    Merewether, Mark Thomas; Crane, Nathan K; de Frias, Gabriel Jose; Le, San; Littlewood, David John; Mosby, Matthew David; Pierson, Kendall H.; Porter, Vicki L.; Shelton, Timothy; Thomas, Jesse David; Tupek, Michael R.; Veilleux, Michael; Gampert, Scott; Xavier, Patrick G.; Plews, Julia A.

    2018-03-01

    Sierra/SolidMechanics (Sierra/SM) is a Lagrangian, three-dimensional code for finite element analysis of solids and structures. It provides capabilities for explicit dynamic, implicit quasistatic and dynamic analyses. The explicit dynamics capabilities allow for the efficient and robust solution of models with extensive contact subjected to large, suddenly applied loads. For implicit problems, Sierra/SM uses a multi-level iterative solver, which enables it to effectively solve problems with large deformations, nonlinear material behavior, and contact. Sierra/SM has a versatile library of continuum and structural elements, and a large library of material models. The code is written for parallel computing environments enabling scalable solutions of extremely large problems for both implicit and explicit analyses. It is built on the SIERRA Framework, which facilitates coupling with other SIERRA mechanics codes. This document describes the functionality and input syntax for Sierra/SM.

  18. Sierra/solid mechanics 4.22 user's guide.

    Energy Technology Data Exchange (ETDEWEB)

    Thomas, Jesse David

    2011-10-01

    Sierra/SolidMechanics (Sierra/SM) is a Lagrangian, three-dimensional code for the analysis of solids and structures. It provides capabilities for explicit dynamic and implicit quasistatic and dynamic analyses. The explicit dynamics capabilities allow for the efficient and robust solution of models subjected to large, suddenly applied loads. For implicit problems, Sierra/SM uses a multi-level iterative solver, which enables it to effectively solve problems with large deformations, nonlinear material behavior, and contact. Sierra/SM has a versatile library of continuum and structural elements, and an extensive library of material models. The code is written for parallel computing environments, and it allows for scalable solutions of very large problems for both implicit and explicit analyses. It is built on the SIERRA Framework, which allows for coupling with other SIERRA mechanics codes. This document describes the functionality and input structure for Sierra/SM.

  19. 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.

  20. 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.

  1. 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

  2. Nest trees of northern flying squirrels in the Sierra Nevada

    Science.gov (United States)

    Marc D. Meyer; Douglas A. Kelt; Malcolm P. North

    2005-01-01

    We examined the nest-tree preferences of northern flying squirrels (Glaucomys sabrinus) in an old-growth, mixed-conifer and red fir (Abies magnifica) forest of the southern Sierra Nevada of California. We tracked 27 individuals to 122 nest trees during 3 summers. Flying squirrels selected nest trees that were larger in diameter and...

  3. Peruvian Rural School Construction System. SERP 71: Sierra Type.

    Science.gov (United States)

    Cangiano, Miguel

    Based on cooperative action of the government and local communities, the Peruvian Rural School System (SERP 71) evolved from the necessity to reconstruct Peruvian schools of the Sierra region after the earthquake of 1970, and from Peru's new educational reform law (1970) which called for an active-dynamic pupil attitude, continuous updating of…

  4. Indigenous knowledge in cattle breeding in Sierra Leone | Abdul ...

    African Journals Online (AJOL)

    This study was conducted in order to document and preserve valuable indigenous knowledge in cattle breeding and production under traditional cattle production system in Sierra Leone. Data were collected from thirty (30) cattle farms from three locations: Gbindi (16 farms), Sackelereh (7 farms), and Flamansa (7 farms) in ...

  5. Sierra Leone Journal of Biomedical Research Original Article

    African Journals Online (AJOL)

    User

    A publication of the College of Medicine and Allied Health Sciences, University of Sierra ... TESTING (VCT) FOR HIV AMONG NURSING STUDENTS IN ZAMBIA ... All students were aware of where to go for VCT, and 80% .... attitudes that assure patients that they will be .... them better practitioners, but their awareness of.

  6. Young Women's Political Participation in Post-War Sierra Leone ...

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

    The end of the civil war in Sierra Leone in 2002 was facilitated in many ways by women through women's pro-democracy movements. These movements will continue to be pivotal in the gradual strengthening of democratic governance structures. Irrespective of the immense barriers that they face, women of all ages have ...

  7. Geology of Sierra de San Miguel area Rocha department (Uruguay)

    International Nuclear Information System (INIS)

    Muzio, R.; Veroslavsky, G.; Morales, E. . E mail: rossana@fcien.edu.uy

    2004-01-01

    This paper is part of a regional study about Mesozoic magmatism, tectonics and sedimentation in Uruguay. As a result of the geological studies carried out in Sierra de San Miguel area (Rocha department), lithological descriptions, their stratigraphic relationships and their petrographic characterization are presented [es

  8. Ecosystems and diversity of the Sierra Madre Occidental

    Science.gov (United States)

    M. S. Gonzalez-Elizondo; M. Gonzalez-Elizondo; L. Ruacho Gonzalez; I. L. Lopez Enriquez; F. I . Retana Renteria; J. A. Tena Flores

    2013-01-01

    The Sierra Madre Occidental (SMO) is the largest continuous ignimbrite plate on Earth. Despite its high biological and cultural diversity and enormous environmental and economical importance, it is yet not well known. We describe the vegetation and present a preliminary regionalization based on physiographic, climatic, and floristic criteria. A confluence of three main...

  9. Diets of California spotted owls in the Sierra National Forest

    Science.gov (United States)

    Thomas E. Munton; Kenneth D. Johnson; George N. Steger; Gary P. Eberlein

    2002-01-01

    From May 1987 through October 1992 and from July through August 1998, we studied diets of California spotted owls (Strix occidentalis occidentalis). Regurgitated pellets were collected at roost and nest sites between 1,000 and 7,600 ft elevation in the Sierra National Forest and were examined for remnant bones, feathers, and insect exoskeletons....

  10. Sierra Leone Journal of Biomedical Research Original Article

    African Journals Online (AJOL)

    User

    recommendations to the health sector of Sierra Leone for it prevention. This retrospective .... pressure. 27% of the population is exposed to 3 to. 5 of these risk factors. According to .... Many studies have identified foot ulcer as the most common ...

  11. Military Interventions in Sierra Leone: Lessons from a Failed State

    National Research Council Canada - National Science Library

    Woods, Larry J; Reese, Timothy R

    2008-01-01

    This study by Larry J. Woods and Colonel Timothy R. Reese analyzes the massive turmoil afflicting the nation of Sierra Leone, 1993-2002, and the efforts by a variety of outside forces to bring lasting stability to that small country...

  12. Mineralogical characterization of historical portuguese wall tiles of Sao Luis, Maranhao, Brazil

    International Nuclear Information System (INIS)

    Rivas Mercury, J.M.; Vasconcelos, N.S.L.S.; Cabral, A.A.; Pereira, D.J. Costa; Angelica, R.S.

    2010-01-01

    Portuguese wall tiles from centuries, XVII, XVIII and XIX, found in Sao Luis Maranhao has been studied by X-ray diffraction, in order to interpret the possible raw material and burning temperature. The mineral phases, Quartz, Wollastonite, Calcite and Gehlenite were identified in all samples. Based on the results it is possible to affirm that the main raw materials used to manufacture this materials was probably mixtures of kaolinite clay and calcite. Based on the mineralogical information it was also possible to state that burning temperature of this wall tiles was lower than 1000 deg C. (author)

  13. On editing the fifth stanza of El aire se serena by fray Luis

    Directory of Open Access Journals (Sweden)

    Aquilino Suárez Pallasá

    2011-12-01

    Full Text Available Although many scholars and editors of the ode «El aire se serena» by fray Luis de León have denied or questioned the authenticity of its fifth stanza, there now seems to be a general assent to its acceptance. The reason for such a change of heart has not to do with textual criticism proper, but with literature. The sources of the ode are said to justify it. In this paper a strictly critico-textual demonstration of the authenticity of stanza 5 is proposed, placing emphasis on the cause of the diffraction displayed in the erroneous lectiones of a segment of the stanza.

  14. Las dos Celamas de Luis Mateo Díez: recuerdo y olvido

    Directory of Open Access Journals (Sweden)

    Oscar Bazán Rodríguez

    2015-02-01

    Full Text Available El artículo reflexiona sobre el tratamiento del espacio en la trilogía de Luis Mateo Díez, El reino de Celama. Con un diverso aporte teórico y crítico explica la relación intrínseca que ocurre entre el espacio y sus habitantes en la obra, y postula que implícitamente hay una separación entre dos Celamas que, a pesar de ocupar un mismo espacio, son distintas en el tiempo, y se corresponden con los valores del recuerdo (luz y del olvido (oscuridad.

  15. Missionary Pragmalinguistics: Father Diego Luis de Sanvitores’ grammar (1668) within the tradition of Philippine grammars

    OpenAIRE

    Winkler, A.P.

    2016-01-01

    The grammar written in Latin, in 1668, by the Jesuit missionary Father Diego Luis de Sanvitores (1627-1672) is the oldest description we have of Chamorro, a language spoken on the Mariana islands. The grammar received a number of bad reviews and as a consequence has become neglected and almost forgotten. The main point of criticism has been that Sanvitores used the Latin grammatical framework to explain a language that in many ways does not fit this framework. In this thesis it is argued inst...

  16. Entrevista con Luis Ramiro Beltrán Salmón

    Directory of Open Access Journals (Sweden)

    Fanny Patricia Franco Chávez

    2011-01-01

    Full Text Available Luis Ramiro Beltrán es un personaje obligado a la hora de hablar de la relación entre la comunicación y el desarrollo. En la siguiente entrevista, conocemos la génesis de este campo a través de un personaje que nos comparte su perfil como pionero y sus experiencias iniciales en Latinoamérica para acercarnos a las primeras definiciones de este campo y a lo que debe ser esencial en la formación del perfil de un comunicador para el desarrollo social.

  17. 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...

  18. Introducción [Jorge Luis Borges : Translación e Historia

    OpenAIRE

    de Toro, Alfonso

    2015-01-01

    El presente volumen es el resultado de una selección de las ponencias presentadas en el coloquio internacional "Jorge Luis Borges: Translación e Historia" realizado con el auspicio de la Deutsche Forschungsgemeinschaft en el Centro de Investigación Iberoamericana del 4 al 9 de diciembre de 2007 y pone en el centro de su reflexión a Borges como fenómeno de "translación", entendiendo por el concepto de "translación" un complejo proceso cultural, medial, social y pragmasemiótico que abarca tanto...

  19. Prevalence and spatial distribution of bovine brucellosis in San Luis and La Pampa, Argentina.

    Science.gov (United States)

    Aznar, M N; Linares, F J; Cosentino, B; Sago, A; La Sala, L; León, E; Duffy, S; Perez, A

    2015-08-15

    Bovine brucellosis (BB) is a zoonotic disease caused by Brucella abortus. BB is endemic in Argentina, where vaccination with Brucella abortus strain 19 is compulsory for 3-to-8 month-old heifers. The objectives of this study were to quantify the prevalence of BB and to identify factors associated with its occurrence, along with the spatial distribution of the disease, in the provinces of La Pampa and San Luis. A two-stage random sampling design was used to sample 8,965 cows (3,513 in La Pampa and 5,452 in San Luis) from 451 farms (187 in La Pampa and 264 in San Luis). Cow and herd prevalence were 1.8 % (95 % CI: 1.3-2.2; n = 157) and 19.7 % (95 % CI: 17.0-22.4; n = 89), respectively. Both cow-level and herd-level prevalence in La Pampa (2.4 and 26.0 %, respectively) were significantly higher than in San Luis (1.4 and 15.5 %, respectively). There were not differences between the proportions of reactive cattle compared to that obtained in a survey conducted in 2005. However, herd prevalence in La Pampa was significantly (P < 0.05) higher compared to that study. Disease was found to be spatially clustered in west La Pampa. The lower the bovine density and the calf/cow ratio, the higher odds of belonging to the cluster. The increase of farm prevalence in the last five years suggests that the disease is spreading and that control measures should be applied in the region. The cluster of infected farms was located in the west region of La Pampa. There, farms have lower animal densities and smaller cow/calf indices compared to the rest of the province. Although western La Pampa has more infected herds, within-farm prevalence was not higher, which suggests that the control program has been relatively successful in controlling the disease at the farm level, and/or that low animal density inherently results in low disease prevalence. Our results provide baseline information on the epidemiology of BB and its potential pattern of transmission in Argentina, which will ultimately

  20. Structural Evolution of the East Sierra Valley System (Owens Valley and Vicinity, California: A Geologic and Geophysical Synthesis

    Directory of Open Access Journals (Sweden)

    Richard J. Blakely

    2013-04-01

    Full Text Available The tectonically active East Sierra Valley System (ESVS, which comprises the westernmost part of the Walker Lane-Eastern California Shear Zone, marks the boundary between the highly extended Basin and Range Province and the largely coherent Sierra Nevada-Great Valley microplate (SN-GVm, which is moving relatively NW. The recent history of the ESVS is characterized by oblique extension partitioned between NNW-striking normal and strike-slip faults oriented at an angle to the more northwesterly relative motion of the SN-GVm. Spatially variable extension and right-lateral shear have resulted in a longitudinally segmented valley system composed of diverse geomorphic and structural elements, including a discontinuous series of deep basins detected through analysis of isostatic gravity anomalies. Extension in the ESVS probably began in the middle Miocene in response to initial westward movement of the SN-GVm relative to the Colorado Plateau. At ca. 3–3.5 Ma, the SN-GVm became structurally separated from blocks directly to the east, resulting in significant basin-forming deformation in the ESVS. We propose a structural model that links high-angle normal faulting in the ESVS with coeval low-angle detachment faulting in adjacent areas to the east.

  1. Structural evolution of the east Sierra Valley system (Owens Valley and vicinity), California: a geologic and geophysical synthesis

    Science.gov (United States)

    Stevens, Calvin H.; Stone, Paul; Blakely, Richard J.

    2013-01-01

    The tectonically active East Sierra Valley System (ESVS), which comprises the westernmost part of the Walker Lane-Eastern California Shear Zone, marks the boundary between the highly extended Basin and Range Province and the largely coherent Sierra Nevada-Great Valley microplate (SN-GVm), which is moving relatively NW. The recent history of the ESVS is characterized by oblique extension partitioned between NNW-striking normal and strike-slip faults oriented at an angle to the more northwesterly relative motion of the SN-GVm. Spatially variable extension and right-lateral shear have resulted in a longitudinally segmented valley system composed of diverse geomorphic and structural elements, including a discontinuous series of deep basins detected through analysis of isostatic gravity anomalies. Extension in the ESVS probably began in the middle Miocene in response to initial westward movement of the SN-GVm relative to the Colorado Plateau. At ca. 3-3.5 Ma, the SN-GVm became structurally separated from blocks directly to the east, resulting in significant basin-forming deformation in the ESVS. We propose a structural model that links high-angle normal faulting in the ESVS with coeval low-angle detachment faulting in adjacent areas to the east.

  2. Health complications of female genital mutilation in Sierra Leone

    Directory of Open Access Journals (Sweden)

    Bjälkander O

    2012-07-01

    Full Text Available Owolabi Bjälkander,1 Laurel Bangura,2 Bailah Leigh,3 Vanja Berggren,1 Staffan Bergström,1 Lars Almroth11Division of Global Health, Department of Public Health, Karolinska Institutet, Stockholm, Sweden; 2Inter Africa Committee, Sierra Leone; 3Department of Community Health, College of Medicine and Allied Health Sciences, University of Sierra Leone, Sierra LeoneAbstract: Sierra Leone has one of the highest rates of female genital mutilation (FGM in the world, and yet little is known about the health consequences of the practice.Purpose: To explore whether and what kind of FGM-related health complications girls and women in Sierra Leone experience, and to elucidate their health care-seeking behaviors.Patients and methods: A feasibility study was conducted to test and refine questionnaires and methods used for this study. Thereafter, a cross-section of girls and women (n = 258 attending antenatal care and Well Women Clinics in Bo Town, Bo District, in the southern region and in Makeni Town, Bombali District, in the northern region of Sierra Leone were randomly selected. Participants answered interview-administrated pretested structured questionnaires with open-ended-questions, administrated by trained female personnel.Results: All respondents had undergone FGM, most between 10 and 14 years of age. Complications were reported by 218 respondents (84.5%, the most common ones being excessive bleeding, delay in or incomplete healing, and tenderness. Fever was significantly more often reported by girls who had undergone FGM before 10 years of age compared with those who had undergone the procedure later. Out of those who reported complications, 187 (85.8% sought treatment, with 89 of them visiting a traditional healer, 75 a Sowei (traditional circumciser, and 16 a health professional.Conclusion: The high prevalence rate of FGM and the proportion of medical complications show that FGM is a matter for public health concern in Sierra Leone. Girls who

  3. GPS Imaging suggests links between climate, magmatism, seismicity, and tectonics in the Sierra Nevada-Long Valley Caldera-Walker Lane system, western United States

    Science.gov (United States)

    Hammond, W. C.; Blewitt, G.; Kreemer, C.; Smith, K.

    2017-12-01

    The Walker Lane is a region of complex active crustal transtension in the western Great Basin of the western United States, accommodating about 20% of the 50 mm/yr relative motion between the Pacific and North American plates. The Long Valley caldera lies in the central Walker Lane in eastern California, adjacent to the eastern boundary of the Sierra Nevada/Great Valley microplate, and experiences intermittent inflation, uplift, and volcanic unrest from the magma chamber that resides at middle crustal depths. Normal and transform faults accommodating regional tectonic transtension pass by and through the caldera, complicating the interpretation of the GPS-measured strain rate field, estimates of fault slip rates, and seismic hazard. Several dozen continuously recording GPS stations measure strain and uplift in the area with mm precision. They observe that the most recent episode of uplift at Long Valley began in mid-2011, continuing until late 2016, raising the surface by 100 mm in 6 years. The timing of the initiation of uplift coincides with the beginning of severe drought in California. Furthermore, the timing of a recent pause in uplift coincides with the very wet 2016-2017 winter, which saw approximately double normal snow pack. In prior studies, we showed that the timing of changes in geodetically measured uplift rate of the Sierra Nevada coincides with the timing of drought conditions in California, suggesting a link between hydrological loading and Sierra Nevada elevation. Here we take the analysis three steps further to show that changes in Sierra Nevada uplift rate coincide in time with 1) enhanced inflation at the Long Valley caldera, 2) shifts in the patterns and rates of horizontal tensor strain rate, and 3) seismicity patterns in the central Walker Lane. We use GPS solutions from the Nevada Geodetic Laboratory and the new GPS Imaging technique to produce robust animations of the time variable strain and uplift fields. The goals of this work are to

  4. Lassa fever in post-conflict sierra leone.

    Directory of Open Access Journals (Sweden)

    Jeffrey G Shaffer

    2014-03-01

    Full Text Available Lassa fever (LF, an often-fatal hemorrhagic disease caused by Lassa virus (LASV, is a major public health threat in West Africa. When the violent civil conflict in Sierra Leone (1991 to 2002 ended, an international consortium assisted in restoration of the LF program at Kenema Government Hospital (KGH in an area with the world's highest incidence of the disease.Clinical and laboratory records of patients presenting to the KGH Lassa Ward in the post-conflict period were organized electronically. Recombinant antigen-based LF immunoassays were used to assess LASV antigenemia and LASV-specific antibodies in patients who met criteria for suspected LF. KGH has been reestablished as a center for LF treatment and research, with over 500 suspected cases now presenting yearly. Higher case fatality rates (CFRs in LF patients were observed compared to studies conducted prior to the civil conflict. Different criteria for defining LF stages and differences in sensitivity of assays likely account for these differences. The highest incidence of LF in Sierra Leone was observed during the dry season. LF cases were observed in ten of Sierra Leone's thirteen districts, with numerous cases from outside the traditional endemic zone. Deaths in patients presenting with LASV antigenemia were skewed towards individuals less than 29 years of age. Women self-reporting as pregnant were significantly overrepresented among LASV antigenemic patients. The CFR of ribavirin-treated patients presenting early in acute infection was lower than in untreated subjects.Lassa fever remains a major public health threat in Sierra Leone. Outreach activities should expand because LF may be more widespread in Sierra Leone than previously recognized. Enhanced case finding to ensure rapid diagnosis and treatment is imperative to reduce mortality. Even with ribavirin treatment, there was a high rate of fatalities underscoring the need to develop more effective and/or supplemental treatments for

  5. El pachuco entre Octavio Paz y el trayecto para su reinvención en "Zoot Suit" de Luis Valdez

    OpenAIRE

    Ochoa, Edna

    2010-01-01

    This article focuses on the figure of the pachuco in the play Zoot Suit by Luis Valdez in order to explore the most important aspects about this character. To achieve this purpose I will examine its representation in various literary texts and I will trace its history to show how the projection of the character changes from the Chicano movement in the 6os. This character is seen in a positive and memorable way, especially in the play Zoot Suit by Luis Valdez, who regards him as...

  6. Juizados Especiais e Ativismo Judicial à Luz de Luis Alberto Warat

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    Zenildo Bodnar

    2012-07-01

    Full Text Available This article addresses, in a punctual way, some reflections on the judicial activism in the Special Courts camp. It seeks to evaluate the existence of a place for the conciliator in the stir that permeates the procedural and substantial models of legal proceedings. For this, as theoretical references, the postulates of Luis Alberto Warat are used, in order to overcome such dyad in favor of an effective judicial protection, without following the ways of the Free Movement of Law and Instrumentality of Process. For the development of this research, it has been used the inductive method, operated by the operational concepts and techniques of literature.Resumo: O presente artigo aborda de forma pontual algumas reflexões sobre o ativismo judicial na seara dos Juizados Especiais. Procura-se avaliar a existência de um lugar para o conciliador na celeuma que permeia os modelos procedimentalistas e substancialistas de processo jurisdicional. Para tanto, como referencial teórico utiliza-se os postulados de Luis Alberto Warat no intuito de superar a referida díade em favor de uma tutela judicial efetiva, sem que se trilhe os caminhos do Movimento do Direito Livre e da Instrumentalidade do Processo. Utilizou-se, para o desenvolvimento desta pesquisa, o método indutivo, operacionalizado pelas técnicas de conceitos operacionais e da pesquisa bibliográfica.

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

    Directory of Open Access Journals (Sweden)

    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.

  8. 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.

  9. Luis Pulido

    Directory of Open Access Journals (Sweden)

    Carlos Barreiro Ortiz

    2005-09-01

    Full Text Available En el mes de julio de 19/37 el Cenro Colombo-Americano de Bogotá inició una serie de recitnles bajo el rótulo genérico de "Compositores colombianos del siglo XX". El objetivo del proyecto era la presentación sistemática de piezas de compositores nacionales menores de 35 años, como una manera de validar ante el público los primeros esbozos de una carrera profesional que se proyectaba con incertidumbre en un escenario cultural uadicionalista y cerrado a nuevas propuestns sonoras.

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

    Directory of Open Access Journals (Sweden)

    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

  11. 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.

  12. Luis Huerta: eugenesia, medicina y pedagogía en España Luis Huerta: Eugenics, Medicine and Pedagogy in Spain

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    Luis Miguel LÁZARO LORENTE

    2013-07-01

    Full Text Available En contraste con lo observable en la historiografía de otros países europeos y anglosajones, el estudio de la introducción y difusión de los principios y prácticas de la Eugenesia, como tema de investigación, no ha contado en España con muchos cultivadores. Menos todavía han sido objeto de estudio las relaciones del pensamiento eugénico con el ámbito pedagógico para indagar la recepción que tiene entre el Magisterio, y conocer el conjunto de reacciones que provoca, así como la participación de los maestros en la potencial difusión de sus planteamientos. Se aborda aquí una aproximación a ese tema centrando el análisis en las relaciones que en la España del primer tercio del siglo XX se establecen entre Medicina, Pedagogía y Eugenesia. Para ello tomamos como referente e hilo conductor la figura y el pensamiento del maestro asturiano Luis Huerta Naves, decidido impulsor y propagandista incansable de la Eugenesia en nuestro país.By comparison with the historiography of other European and Anglo-Saxon countries, the study of the origins and spread of Eugenics in Spain has not received much attention. Even less research has been done on the degree of acceptance of eugenic thought in the pedagogical domain or on the role teachers may have in the diffusion of eugenics. This paper attempts to explore the subject while focusing the analysis on the relations that were established among Medicine, Pedagogy and Eugenics in Spain during the first third of the 20th century. We will take as a point of reference and guiding line of thought the figure of the Asturian teacher Luis Huerta Naves, who was the driving force and tireless advocate of the eugenics movement in our country.

  13. Predicted fire behavior and societal benefits in three eastern Sierra Nevada vegetation types

    Science.gov (United States)

    C.A. Dicus; K. Delfino; D.R. Weise

    2009-01-01

    We investigated potential fire behavior and various societal benefits (air pollution removal, carbon sequestration, and carbon storage) provided by woodlands of pinyon pine (Pinus monophylla) and juniper (Juniperus californica), shrublands of Great Basin sagebrush (Artemisia tridentata) and rabbitbrush (Ericameria nauseosa...

  14. Nonlocal Sediment Transport on Steep Lateral Moraines, Eastern Sierra Nevada, California, USA

    Science.gov (United States)

    Doane, Tyler H.; Furbish, David Jon; Roering, Joshua J.; Schumer, Rina; Morgan, Daniel J.

    2018-01-01

    Recent work has highlighted the significance of long-distance particle motions in hillslope sediment transport. Such motions imply that the flux at a given hillslope position is appropriately described as a weighted function of surrounding conditions that influence motions reaching the given position. Although the idea of nonlocal sediment transport is well grounded in theory, limited field evidence has been provided. We test local and nonlocal formulations of the flux and compare their ability to reproduce land surface profiles of steep moraines in California. We show that nonlocal and nonlinear models better reproduce evolved land surface profiles, notably the amount of lowering and concavity near the moraine crest and the lengthening and straightening of the depositional apron. The analysis provides the first estimates of key parameters that set sediment entrainment rates and travel distances in nonlocal formulations and highlights the importance of correctly specifying the entrainment rate when modeling land surface evolution. Moraine evolution associated with nonlocal and nonlinear transport formulations, when described in terms of the evolution of the Fourier transform of the moraine surface, displays a distinct behavior involving growth of certain wave numbers, in contrast to the decay of all wave numbers associated with linear transport. Nonlinear and nonlocal formulations share key mathematical elements yielding a nonlinear relation between the flux and the land surface slope.

  15. Geographical Distribution of Intestinal Schistosomiasis and Soil-Transmitted Helminthiasis and Preventive Chemotherapy Strategies in Sierra Leone

    Science.gov (United States)

    Koroma, Joseph B.; Peterson, Jen; Gbakima, Aiah A.; Nylander, Francis E.; Sahr, Foday; Soares Magalhães, Ricardo J.; Zhang, Yaobi; Hodges, Mary H.

    2010-01-01

    Background A national baseline mapping of schistosomiasis and soil-transmitted helminthiasis (STH) was performed in Sierra Leone. The aim was to provide necessary tools for the Ministry of Health and Sanitation to plan the intervention strategies in the national integrated control program on neglected tropical diseases according to the World Health Organization (WHO) guidelines for preventative chemotherapy (PCT) and for future monitoring and evaluation. Methodology/Principal Findings 53 primary schools were randomly selected through a two-staged random sampling throughout the country. Approximately one hundred children aged 5–16 years of age were systematically selected from each school and their stool samples examined in a field laboratory. A total of 5,651 samples were examined. Data were analyzed with multivariable logistic regression models using model-based geostatistics. Spatial analysis predicted that S. mansoni infection was positively associated with population density and elevation and that there was a large cluster of high risk of S. mansoni infection (prevalence >70%) in the north and most of the eastern areas of the country, in line with the observed prevalence in Kono (63.8–78.3%), Koinadugu (21.6–82.1%), Kailahun (43.5–52.6%), Kenema (6.1–68.9%) and Tonkolili (0–57.3%). Hookworm infection was negatively associated with population density and land surface temperature, and was high across Sierra Leone with a large cluster of high infection risk (prevalence >70%) in the north-eastern part of the country. Remarkably low prevalence of Ascaris lumbricoides (7.2%) and Trichuris trichiura (3.3%) was recorded when compared with results published in the 1990s. Conclusions/Significance Results justify PCT for schistosomiasis for school age children and at-risk adults every year in high-risk communities in five districts and every two years in moderate-risk communities in one more district. The high prevalence of STH, particularly hookworm, coupled

  16. Geographical distribution of intestinal schistosomiasis and soil-transmitted helminthiasis and preventive chemotherapy strategies in Sierra Leone.

    Science.gov (United States)

    Koroma, Joseph B; Peterson, Jen; Gbakima, Aiah A; Nylander, Francis E; Sahr, Foday; Soares Magalhães, Ricardo J; Zhang, Yaobi; Hodges, Mary H

    2010-11-23

    A national baseline mapping of schistosomiasis and soil-transmitted helminthiasis (STH) was performed in Sierra Leone. The aim was to provide necessary tools for the Ministry of Health and Sanitation to plan the intervention strategies in the national integrated control program on neglected tropical diseases according to the World Health Organization (WHO) guidelines for preventative chemotherapy (PCT) and for future monitoring and evaluation. 53 primary schools were randomly selected through a two-staged random sampling throughout the country. Approximately one hundred children aged 5-16 years of age were systematically selected from each school and their stool samples examined in a field laboratory. A total of 5,651 samples were examined. Data were analyzed with multivariable logistic regression models using model-based geostatistics. Spatial analysis predicted that S. mansoni infection was positively associated with population density and elevation and that there was a large cluster of high risk of S. mansoni infection (prevalence >70%) in the north and most of the eastern areas of the country, in line with the observed prevalence in Kono (63.8-78.3%), Koinadugu (21.6-82.1%), Kailahun (43.5-52.6%), Kenema (6.1-68.9%) and Tonkolili (0-57.3%). Hookworm infection was negatively associated with population density and land surface temperature, and was high across Sierra Leone with a large cluster of high infection risk (prevalence >70%) in the north-eastern part of the country. Remarkably low prevalence of Ascaris lumbricoides (7.2%) and Trichuris trichiura (3.3%) was recorded when compared with results published in the 1990s. Results justify PCT for schistosomiasis for school age children and at-risk adults every year in high-risk communities in five districts and every two years in moderate-risk communities in one more district. The high prevalence of STH, particularly hookworm, coupled with widespread anemia according to a national report in Sierra Leone, suggests

  17. Máscaras de la lectura: Jorge Luis Borges en la obra de Mario Luzi / The masks of reading: Jeorge Luis Borges in Mario Luzi’s work

    Directory of Open Access Journals (Sweden)

    Daniel Clemente Del Percio

    2014-12-01

    The roads that separate writers often end with a paradox, happy proximity. The nominations for the Nobel Prize for literature in 1979 came together, as in a real literary constellation, Italo Calvino, Alberto Moravia, Giorgio Bassani, Vittorio Sereni, Leonardo Sciascia and Mario Luzi, along with the argentine Jorge Luis Borges. The list reflects the richness and variety of Italian literature of the time. But beyond the storytellers, the coincidence of Luzi and Borges (and we might add, that of Odisseas Elytis, who was finally awarded the prize is a unique convergence of poets, with very different poetics, but with intense communicating vessels that unite them, often invisible and contradictory manner. While Borges never wrote about Luzi, the italian, however, did, and quite often, on the argentine, not only from the pages of literary criticism in «Il Corriere della Sera», space occupied until 1974 commenting Latin American literature (he has written about Roberto Arlt, Vargas Llosa and Juan Rulfo, among other writers, but in different interviews, where the frequent quotations that Luzi makes about Borges often installed a space for discussion and profound differences not only on the nature of poetry, but on the same link with the world and life. We propose to study these reflections that Mario Luzi made from (and on many occasions, against about the Argentine author, from the critical work of the Florentine poet, on the centenary of his birth.

  18. El paisaje vegetal de la Sierra de Juan Robre y Jana (Oriente de Asturias

    Directory of Open Access Journals (Sweden)

    Ruiz Fernández, Jesús

    2006-06-01

    Full Text Available This paper is aimed at studying the vegetal formations found in a middle altitude ridge on Eastern Asturias. The characteristics and current distribution of these formations result from a combination of factors such as the climate, the relief, the soil and the systematic human action. Particularly relevant are the beech forests, the evergreen holm oak and the willow groves. Mixed forests of atlantic deciduous leaves species are properly represented, as well as chestnuts and oak groves. However, the most extended vegetal formations are heathers, gorses, ferns and pastures, as a consequence of traditional agricultural practices.

    Se estudian las formaciones vegetales existentes en una sierra de altitud media del oriente asturiano. Las características y la distribución actual de dichas formaciones son el resultado de la combinación de factores como el clima, el relieve, los suelos y la secular intervención humana. Por su elevado interés destacan formaciones como los hayedos, los encinares y las saucedas arbustivas. Los bosques mixtos de frondosas planocaducifolias también están bien representados, al igual que los castañedos y los robledales. No obstante las formaciones que más superficie ocupan son los brezales, los helechales, los aulagares y los pastizales, fruto de las prácticas desarrolladas al amparo del sistema de explotación agrario tradicional.

  19. Good laboratory practices guarantee biosafety in the Sierra Leone-China friendship biosafety laboratory

    OpenAIRE

    Wang, Qin; Zhou, Wei-Min; Zhang, Yong; Wang, Huan-Yu; Du, Hai-Jun; Nie, Kai; Song, Jing-Dong; Xiao, Kang; Lei, Wen-Wen; Guo, Jian-Qiang; Wei, He-Jiang; Cai, Kun; Wang, Yan-Hai; Wu, Jiang; Kamara, Gerard

    2016-01-01

    Background The outbreak of Ebola virus disease (EVD) in West Africa between 2014 and 2015 was the largest EDV epidemic since the identification of Ebola virus (EBOV) in 1976, and the countries most strongly affected were Sierra Leone, Guinea, and Liberia. Findings The Sierra Leone-China Friendship Biological Safety Laboratory (SLE-CHN Biosafety Lab), a fixed Biosafety Level 3 laboratory in the capital city of Sierra Leone, was established by the Chinese government and has been active in EBOV ...

  20. Level-2 Milestone 6007: Sierra Early Delivery System Deployed to Secret Restricted Network

    Energy Technology Data Exchange (ETDEWEB)

    Bertsch, A. D. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2017-09-06

    This report documents the delivery and installation of Shark, a CORAL Sierra early delivery system deployed on the LLNL SRD network. Early ASC program users have run codes on the machine in support of application porting for the final Sierra system which will be deployed at LLNL in CY2018. In addition to the SRD resource, Shark, unclassified resources, Rzmanta and Ray, have been deployed on the LLNL Restricted Zone and Collaboration Zone networks in support of application readiness for the Sierra platform.

  1. SIERRA/Aero User Manual Version 4.44

    Energy Technology Data Exchange (ETDEWEB)

    Sierra Thermal/Fluid Team

    2017-04-01

    SIERRA/Aero is a compressible fluid dynamics program intended to solve a wide variety compressible fluid flows including transonic and hypersonic problems. This document describes the commands for assembling a fluid model for analysis with this module, henceforth referred to simply as Aero for brevity. Aero is an application developed using the SIERRA Toolkit (STK). The intent of STK is to provide a set of tools for handling common tasks that programmers encounter when developing a code for numerical simulation. For example, components of STK provide field allocation and management, and parallel input/output of field and mesh data. These services also allow the development of coupled mechanics analysis software for a massively parallel computing environment. In the definitions of the commands that follow, the term Real_Max denotes the largest floating point value that can be represented on a given computer. Int_Max is the largest such integer value.

  2. Transient fuel rod behavior prediction with RODEX-3/SIERRA

    Energy Technology Data Exchange (ETDEWEB)

    Billaux, M R; Shann, S H; Swam, L.F. Van [Siemens Power Corp., Richland, WA (United States)

    1997-08-01

    This paper discusses some aspects of the fuel performance code SIERRA (SIEmens Rod Response Analysis). SIERRA, the latest version of the code RODEX-3, has been developed to improve the fuel performance prediction capabilities of the code, both at high burnup and during transient reactor conditions. The paper emphasizes the importance of the mechanical models of the cracked pellet and of the cladding, in the prediction of the transient response of the fuel rod to power changes. These models are discussed in detail. Other aspects of the modelling of high burnup effects are also presented, in particular the modelling of the rim effect and the way it affects the fuel temperature. (author). 12 refs, 5 figs.

  3. Diagnosis of Knowledge Management in the Brisas Sierra Mar hotel

    Directory of Open Access Journals (Sweden)

    Ivón Sosa-Piedra

    2017-06-01

    Full Text Available The present investigation was made in order to evaluate the Knowledge in the Management at Brisas Sierra Mar Hotel, Santiago de Cuba. Due to this, it is being value the actual approaches that was utilized in the existent methodologies for the measurement conduct of the knowledge in the Enterprise Organizations. To fulfill these results we utilized different methods, technical, abilities and scientific investigation tools, such as: analysis-method, synthesis, historical logical, and inducement; technical as a team work, expert judgments, interviews and first and second class information review, as well as the informatics decision programs for the selection and validations of the experts, the Statistic Program for Social Sciences for Windows (SPSS version 15.0 in indicting of the information. The investigation propitiated an evaluation of the actual situation of Brisas Sierra Mar Hotel, Santiago de Cuba and permitted to identify the stage of their main intellectual, placing them in an intermediate level.

  4. Transient fuel rod behavior prediction with RODEX-3/SIERRA

    International Nuclear Information System (INIS)

    Billaux, M.R.; Shann, S.H.; Swam, L.F. Van

    1997-01-01

    This paper discusses some aspects of the fuel performance code SIERRA (SIEmens Rod Response Analysis). SIERRA, the latest version of the code RODEX-3, has been developed to improve the fuel performance prediction capabilities of the code, both at high burnup and during transient reactor conditions. The paper emphasizes the importance of the mechanical models of the cracked pellet and of the cladding, in the prediction of the transient response of the fuel rod to power changes. These models are discussed in detail. Other aspects of the modelling of high burnup effects are also presented, in particular the modelling of the rim effect and the way it affects the fuel temperature. (author). 12 refs, 5 figs

  5. SIERRA/Aero User Manual Version 4.46.

    Energy Technology Data Exchange (ETDEWEB)

    Sierra Thermal/Fluid Team

    2017-09-01

    SIERRA/Aero is a compressible fluid dynamics program intended to solve a wide variety compressible fluid flows including transonic and hypersonic problems. This document describes the commands for assembling a fluid model for analysis with this module, henceforth referred to simply as Aero for brevity. Aero is an application developed using the SIERRA Toolkit (STK). The intent of STK is to provide a set of tools for handling common tasks that programmers encounter when developing a code for numerical simulation. For example, components of STK provide field allocation and management, and parallel input/output of field and mesh data. These services also allow the development of coupled mechanics analysis software for a massively parallel computing environment. In the definitions of the commands that follow, the term Real_Max denotes the largest floating point value that can be represented on a given computer. Int_Max is the largest such integer value.

  6. SIERRA/Aero Theory Manual Version 4.44

    Energy Technology Data Exchange (ETDEWEB)

    Sierra Thermal/Fluid Team

    2017-04-01

    SIERRA/Aero is a two and three dimensional, node-centered, edge-based finite volume code that approximates the compressible Navier-Stokes equations on unstructured meshes. It is applicable to inviscid and high Reynolds number laminar and turbulent flows. Currently, two classes of turbulence models are provided: Reynolds Averaged Navier-Stokes (RANS) and hybrid methods such as Detached Eddy Simulation (DES). Large Eddy Simulation (LES) models are currently under development. The gas may be modeled either as ideal, or as a non-equilibrium, chemically reacting mixture of ideal gases. This document describes the mathematical models contained in the code, as well as certain implementation details. First, the governing equations are presented, followed by a description of the spatial discretization. Next, the time discretization is described, and finally the boundary conditions. Throughout the document, SIERRA/ Aero is referred to simply as Aero for brevity.

  7. SIERRA/Aero Theory Manual Version 4.46.

    Energy Technology Data Exchange (ETDEWEB)

    Sierra Thermal/Fluid Team

    2017-09-01

    SIERRA/Aero is a two and three dimensional, node-centered, edge-based finite volume code that approximates the compressible Navier-Stokes equations on unstructured meshes. It is applicable to inviscid and high Reynolds number laminar and turbulent flows. Currently, two classes of turbulence models are provided: Reynolds Averaged Navier-Stokes (RANS) and hybrid methods such as Detached Eddy Simulation (DES). Large Eddy Simulation (LES) models are currently under development. The gas may be modeled either as ideal, or as a non-equilibrium, chemically reacting mixture of ideal gases. This document describes the mathematical models contained in the code, as well as certain implementation details. First, the governing equations are presented, followed by a description of the spatial discretization. Next, the time discretization is described, and finally the boundary conditions. Throughout the document, SIERRA/ Aero is referred to simply as Aero for brevity.

  8. Failure of Sierra White granite under general states of stress

    Science.gov (United States)

    Ingraham, M. D.; Dewers, T. A.; Lee, M.; Holdman, O.; Cheung, C.; Haimson, B. C.

    2017-12-01

    The effect of the intermediate principal stress on the failure of Sierra White granite was investigated by performing tests under true triaxial states of stress. Tests were performed under constant Lode angle conditions with Lode angles ranging from 0 to 30°, pure shear to axisymmetric compression. Results show that the failure of Sierra White granite is heavily dependent on the intermediate principal stress which became more dramatic as the mean stress increased. An analysis of the shear bands formed at failure was performed using an associated flow rule and the Rudnicki and Rice (1975) localization criteria. The localization analysis showed excellent agreement with experimental results. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia LLC, a wholly owned subsidiary of Honeywell International Inc. for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-NA0003525.

  9. “Candidatus Rickettsia andeanae” en Amblyomma tigrinum, San Luis, Argentina

    Directory of Open Access Journals (Sweden)

    Gabriel CICUTTIN

    2016-11-01

    Full Text Available El objetivo del estudio fue detectar especies del género Rickettsia en garrapatas de la especie Amblyomma tigrinum colectadas sobre carnívoros domésticos y en sangre de caninos domésticos de la provincia de San Luis (Argentina. Entre 2013 y 2015 se colectaron 56 garrapatas adultas de la especie A. tigrinum sobre caninos y felinos domésticos, y se obtuvieron 65 muestras sanguíneas de caninos. Tres garrapatas resultaron positivas mediante la amplificación de un fragmento del espacio intergénico 23S-5S ARNr del género Rickettsia, lográndose secuenciar uno de los productos positivos. La muestra positiva secuenciada también resultó positiva por PCRs de los fragmentos de los genes gltA y ompA. Las secuencias obtenidas resultaron tener una identidad del 100 % de identidad con “Candidatus Rickettsia andeanae”. Todas las muestras sanguíneas resultaron negativas. “Ca. R. andeanae” no ha sido asociada con enfermedad en humanos o animales, sin embargo, es necesario realizar nuevas investigaciones para lograr un mayor conocimiento del riesgo potencial de transmisión de rickettsiosis en la región. SUMMARY. “Candidatus Rickettsia andeanae” in Amblyomma tigrinum ticks from San Luis (Argentina. The aim of this study was to detect species of Rickettsia in Amblyomma tigrinum ticks collected from domestic carnivores and blood of domestic dogs of San Luis (Argentina. Between 2013 and 2015, 56 adults of A. tigrinum from dogs and cats and 65 blood from dogs were collected. Three ticks were positive by amplification of a 23S-5S rRNA fragment, and the sequence of one of the positive products was obtained. The positive sample sequenced was positive by PCRs of fragments of genes gltA and ompA. The sequences obtained were 100% identical with "Candidatus Rickettsia andeanae". All blood samples were negative. “Ca. R. andeanae” has not been associated with disease in humans or animals; however, further research is necessary to achieve greater

  10. 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...

  11. 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...

  12. Master Mentors: Linda Golian-Lui University of Hawaii-Hilo--George Oberle George Mason University, VA

    Science.gov (United States)

    Library Journal, 2005

    2005-01-01

    Many movers and shakers inspire admiration and even awe, but those who inspire love are the mentors who have changed lives. That is why many grateful librarians nominated Linda Golian-Lui and George Oberle. Both of them were accidental librarians, work-study students whose supervisors encouraged them to become paraprofessionals, and then…

  13. Diagnóstico etiológico de la ceguera de Jorge Luis Borges basado en su obra literaria

    Directory of Open Access Journals (Sweden)

    Mario Enrique de la Piedra Walter

    2017-07-01

    Conclusiones: Pese a que la miopía degenerativa es la etiología más probable de la ceguera de Jorge Luis Borges, no es posible descartar por completo otras oftalmopatías sin una exploración física adecuada. Se cumple el objetivo solo en el marco presuntivo.

  14. Una aproximación al poema “Arte Poética” de Jorge Luis Borges

    Directory of Open Access Journals (Sweden)

    Lorena Chaves Salgado

    2013-01-01

    Full Text Available Este artículo presenta una lectura del poema 'Arte poética' de Jorge Luis Borges desarrollando aspectos teóricos relacionados con el análisis poético. El poema describe la labor del poeta y que significa escribir poesía, entendido para Borges como un acto y proceso creativo.

  15. 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...

  16. More than Meets the Eye: Adult Education for Critical Consciousness in Luis Camnitzer's Art

    Science.gov (United States)

    Zorrilla, Ana Carlina

    2012-01-01

    The purpose of this study was to explore the connection between art and adult education for critical consciousness through the conceptual art of Luis Camnitzer. The theoretical framework grounding this research was critical public pedagogy, influenced by both critical theory and Stuart Hall's systems of representation (1997). This framework…

  17. Courtright intrusive zone: Sierra National Forest, Fresno County, California.

    Science.gov (United States)

    Bateman, P.C.; Kistler, R.W.; DeGraff, J.V.

    1984-01-01

    This is a field guide to a well-exposed area of plutonic and metamorphic rocks in the Sierra National Forest, Fresno County, California. The plutonic rocks, of which three major bodies are recognized, besides aplite and pegmatite dykes, range 103 to approx 90 m.y. in age. Points emphasized include cataclastic features within the plutonic rocks, schlieren and mafic inclusions. (M.A. 83M/0035).-A.P.

  18. Hydrographic and chemical observations in the Sierra Leone River estuary

    International Nuclear Information System (INIS)

    Koske, P.H.; Weiler, K.

    1979-01-01

    Hydrographic and chemical observations in the Sierra Leone River estuary are reported, a West-African river in the tropics. Because of the typical change between rainy season in the sommer months and dry season in winter time the research work has been adapted to these semi-annual changes. The collected data and results are given and discussed under this aspect of the seasonal fluctuations. (orig.) [de

  19. Seroprevalence of Ebola virus infection in Bombali District, Sierra Leone

    Directory of Open Access Journals (Sweden)

    Nadege Goumkwa Mafopa

    2017-12-01

    Full Text Available A serosurvey of anti-Ebola Zaire virus nucleoprotein IgG prevalence was carried out among Ebola virus disease survivors and their Community Contacts in Bombali District, Sierra Leone. Our data suggest that the specie of Ebola virus (Zaire responsible of the 2013-2016 epidemic in West Africa may cause mild or asymptomatic infection in a proportion of cases, possibly due to an efficient immune response.

  20. Global solar radiation in Sierra Leone (West Africa)

    International Nuclear Information System (INIS)

    Massaquoi, J.G.M.

    1987-09-01

    A correlation equation of the Angstrom type has been developed to predict the monthly average daily global solar irradiation incident on a horizontal surface in Freetown, Sierra Leone. Measurements of the global insolation have been compared with those predicted using the equation. A good agreement (greater than 95% in most cases) was observed between the measured values and the predicted ones. (author). 15 refs, 2 tabs

  1. Groundwater quality in the Southern Sierra Nevada, California

    Science.gov (United States)

    Fram, Miranda S.; Belitz, Kenneth

    2012-01-01

    Groundwater provides more than 40 percent of California's drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State's groundwater quality and increases public access to groundwater-quality information. The Tehachapi-Cummings Valley and Kern River Valley basins and surrounding watersheds in the Southern Sierra Nevada constitute one of the study units being evaluated.

  2. Groundwater quality in the Central Sierra Nevada, California

    Science.gov (United States)

    Fram, Miranda S.; Belitz, Kenneth

    2012-01-01

    Groundwater provides more than 40 percent of California's drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State's groundwater quality and increases public access to groundwater-quality information. Two small watersheds of the Fresno and San Joaquin Rivers in the Central Sierra Nevada constitute one of the study units being evaluated.

  3. Reducing CO2 emissions in Sierra Leone and Ghana

    International Nuclear Information System (INIS)

    Davidson, O.

    1991-01-01

    With soring population growth rates and minimal economic growth, the nations of Africa are afflicted with innumerable problems. Why then should Africa's developing countries worry about CO 2 emissions? First, because agricultural activities form the backbone of most African economies; thus, these nations may be particularly vulnerable to the negative impacts of climate change. Second, acting to reduce carbon emissions will bring about more efficient energy use. All of Africa could benefit from the improved use of energy. Finally, the accumulation of CO 2 in the atmosphere is a global problem with individual solutions; in order to reduce international emissions, all countries, including those in Africa, must contribute. Typical of many African countries, Ghana and Sierra Leone have among the lowest levels of energy demand per capita across the globe. primary energy demand per capita in these two West African nations equals about one quarter of the world's average and about one twentieth of the US average. This work summarizes the results of two long-term energy use and carbon emissions scenarios for Sierra Leone and Ghana. In the high emissions (HE) scenario for 2025, policy changes focused on galvanizing economic growth lead to significant increases in energy use and carbon emissions in Ghana and Sierra Leone between 1985 and 2025. In the low emissions (LE) scenario, the implementation of policies aimed specifically at curtailing CO 2 emissions significantly limits the increase in carbon in both nations by 2025

  4. Environmental values and risk: A review of Sierra Club policies

    Energy Technology Data Exchange (ETDEWEB)

    Craig, P.P. [Univ. of California, Davis, CA (United States). Graduate Group in Ecology

    1999-12-01

    Sierra Club values are driven by an overriding environmental ethic. Sierra Club environmental values may be characterized by the concept of 'usufruct' a term favored by United States Founding Father Thomas Jefferson. Usufruct conveys the idea that the environment is ours to use, but not to destroy. Each generation has the obligation to pass on to future generations a world at least as environmentally rich as the one it inherited. It is appropriate to accept risk today in order to preserve the environment for generations yet to come. As viewed through the lens of its formal policies, the Sierra Club is an organization that embraces technology, but insists that technology be evaluated comprehensively, taking full account of both environmental and social externalities. The Club is 'risk averse' with respect to early introduction of technologies seen as likely to have significant negative environmental or social impact. The Club places heavy emphasis on process, which must involve the public meaningfully.

  5. Swordmanship as Mathematical Science: The Curious Case of Luis Pacheco de Narváez

    Directory of Open Access Journals (Sweden)

    Felix Kurt Ernst Schmelzer

    2016-11-01

    Full Text Available From the 15th century on, the practitioners of the mechanical arts obtain a new self-confidence and do no longer want to be regarded merely as manual workers. In this context, they frequently underline the mathematical basis of their discipline in order to increase its value from the status of a mechanical to that of a liberal art. In the Spanish golden age period, the military art, amongst others, is conceived as a mathematical discipline. A particularly curious case is the Libro de las grandezas de la espada (1600 whose author, Luis Pacheco de Narváez (1570-1640, propagates the art of swordsmanship, which he names «the true skill», as a science based on the disciplines of the quadrivium. The present article outlines the arguments applied by Pacheco in a preliminary chapter in order to prove the mathematical and scientific status of his discipline.

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

    Directory of Open Access Journals (Sweden)

    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.

  7. CONTRIBUTIONS TO RICKETTSIOSES RESEARCH IN COLOMBIA (1917-1943), LUIS B. PATIÑO CAMARGO

    Science.gov (United States)

    FACCINI-MARTÍNEZ, Álvaro A.; BOTERO-GARCÍA, Carlos A.; HIDALGO, Marylin

    2016-01-01

    Colombian physician Luis Benigno Patiño Camargo was one of the pioneers in the study of rickettsioses in South America, demonstrating for the first time in Colombia the presence of Rickettsia rickettsii as the etiological agent of a highly deadly exanthematic febrile syndrome in the 1930s. However, Patiño-Camargo performed other investigations from 1917-1943, which represent the first descriptions and scientific evidence of the presence of R. prowazekii and R. typhi in Colombia. Almost 60 years after the latest research conducted by Dr. Patiño-Camargo, rickettsioses were again a matter of interest and research. In the last decade over 20 research studies have been published, showing new endemic areas for R. rickettsii, as well as the description of new rickettsial species in Colombia. PMID:27074327

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

    Directory of Open Access Journals (Sweden)

    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.

  9. OS VINHOS DE MÚRCIA: CONTRIBUTO DE JOSÉ LUIS ANDRÉS SARASA

    Directory of Open Access Journals (Sweden)

    Victor Dordio

    2011-01-01

    Full Text Available José Luis Andrés Sarasa y su equipo de investigadores de la Universidad de Murcia hizo un excelente análisis estructural de la producción de vino en la Región de Murcia en el marco del proyecto «Filières Innovantes» (2002-2005. Los temas del espacio y tiempo, la tipología de los productores, bajo la óptica del savoir-faire, han sido minuciosamente estudiados y presentados. Nuestra contribución a este estudio consistió en un capítulo sobre el turismo del vino, que no se trató anteriormente debido a la falta de tiempo.

  10. Survey of the University "Luis Vargas Torres" through Econometric Techniques. Comprehensive Income

    Directory of Open Access Journals (Sweden)

    Ramón Rodríguez-Betancourt

    2015-12-01

    Full Text Available Government Programme 2013-2017 defines in higher education, the principles of the curriculum proposals of much public interest careers. In this regard the authorities of the Technical University "Luis Vargas Torres" of Esmeraldas, have taken the decision to evaluate its management and action against the development of the province and the country. Therefore, the objective of this research is the application of a survey of students of different specialties, Faculty of Engineering and Technology to explore their views on the educational process, research, outreach, culture and sport, stratified random sampling with results showing that key processes are completed by 66% on average is applied, indicating that the authority still has to set goals to overcome the short comings that have an emphasis on research.

  11. The Outreach Process in the Technical University Luis Vargas Torres, Esmeraldas, Ecuador

    Directory of Open Access Journals (Sweden)

    Harold Oyarvide-Ramirez

    2016-06-01

    Full Text Available As part of the transformative process that takes place in the ecuadorian university is research that aims to improve the outreach model at the Technical University Luis Vargas Torres Esmeraldas developed. The need of jobs forces people to venture into small businesses, however, this process is done in an empirical way, without sufficient technical and administrative knowledge that will enable the company to manage efficiently and obtain funding sources. Hence the relevance of the study, which allows guide and train the business sector in order to conduct an efficient management and create new businesses that operate as a means for the transformation of the productive matrix. The research results are: the structure and function of outreach model, the key elements that support the creation of the Center for Business Development and Entrepreneurship Support and the socioeconomic impact achieved from the development of relations among universities, businesses and government.

  12. Saber mirar, saber contar. La narrativa cinematográfica de José Luis Borau

    OpenAIRE

    Mérida Donoso, José Antonio

    2018-01-01

    Tesis doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Filosofía y Letras, Departamento de Filología Española. Fecha de lectura: 29-9-2017 La presente tesis doctoral se adentra en una de las figuras fundamentales de la historia del cine español, José Luis Borau. Para ello se analiza su cine desde una perspectiva textual, atendiendo al emisor, el receptor, el contexto –de producción y sociopolítico- y el texto fílmico. Bajo este prisma se ofrece una visión del estilo...

  13. Luis Álvarez-Gaumé to speak at El Ser Creativo 2011

    CERN Multimedia

    Jordan Juras

    2011-01-01

    During the weekend of 19 October, 2011, Madrid will host this year’s El Ser Creativo – a three-day conference celebrating new ideas that can change the world.   Over the course of the conference, 21 speakers will have the chance to share their opinions and ideas for 21 minutes each – the estimated time that the human brain is able to maintain complete focus. Among the Nobel Prize winners, scientists, doctors, and thinkers invited to this year's conference is Luis Álvarez-Gaumé, a theoretical physicist at CERN. Having made significant contributions to the understanding of gravitation, minimal supergravity theory and supersymmetry, Álvarez-Gaumé was an obvious choice to be invited to share his thoughts about the theory and reality of current physics ideas with the conference attendees. A webcast will be available to stream the entire conference live.

  14. Un precedente de psicología conductual en la Universidad Nacional de San Luis (Argentina)

    OpenAIRE

    Calabresi, Corina; Polanco, Fernando

    2008-01-01

    En 1970 un grupo de estudiantes de la Licenciatura en Psicología y Pedagogía de la Universidad Nacional de San Luis, Argentina, tuvo un activo compromiso con el desarrollo de una psicología científica basada en la teoría conductual. El trabajo analiza la conformación de dicho movimiento estudiantil y la fundación, por parte del mismo, en 1974 del Centro de Estudios de Psicología Objetiva I. P. Pavlov (CEDEPO), el cual progresivamente cuestionó la hegemonía psicoanalítica en el medio académico...

  15. Masculinidad y violencia en el nuevo cine mexicano. Las películas de Luis Estrada

    Directory of Open Access Journals (Sweden)

    Claudia Elizabeth Puente

    2016-01-01

    Full Text Available En este artículo exploraremos la conformación de las masculinidades a través de las representaciones cinematográficas en América latina, específicamente en la obra del mexicano Luis Estrada, parte fundamental del llamado Nuevo cine mexicano en sus obras exhibidas entre 1999 y 2010. Aunque el universo de estudios de masculinidades es cada vez más amplio, las representaciones cinematográficas no han sidomuy exploradas. Este artículo pretende hacer un análisis de las representaciones masculinas y su relación con las representaciones femeninas en el nuevo cine mexicano en un contexto de violencia desde una perspectiva crítica feminista.

  16. 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.

  17. The archaeological investigations of 1984 at Trinca “Izvorul lui Luca” site

    Directory of Open Access Journals (Sweden)

    Oleg Leviţki

    2017-09-01

    Full Text Available The article presents the archaeological researches carried out at Trinca “Izvorul lui Luca” settlement in 1984. The paper is part of the series of articles initiated by the authors in order to include the research results of this unusual site. The discovered archaeological remains were treated in a complex way, presented on layers, complexes, categories and types. Thus, the discovered complexes were described, the pieces of inventory systematized according to the categories of materials from which they were made, while the ceramics is presented by categories, types and variants. The most relevant findings have been analysed in more detail, being related to those specific of other synchronous or partially synchronic neighbouring cultures. As a result, the existence of a set of artefacts has been established, having analogies in the Hallstattian Carpathian-Nistrian cultural environment and, respectively, in the Middle Danube area.

  18. Mineralogy of auriferous deposits of the quaternary deposits in the San Luis Province, Argentina

    International Nuclear Information System (INIS)

    Karlsson, A.; Ayala, R. . E mail: Karlsson@arnet.com.ar

    2004-01-01

    The objective of this work is to study the mineralogy of the sands and clays of the quaternary deposits in the San Luis Mountain, Argentina. A series of algorithms applied to the sand fraction has permitted to determine sedimentary discontinuities. The two micron fraction of the sediments has been studied by a quantification technique based on X-ray diffraction by means of oriented preparations and run with copper tube. These quaternary silts have received fluvial lateral contributions. The high cristalinidad of non expandibles and fireclay clay show the antique of the silts. The polygenic processes have generated a great variety of clay mineral species like a large quantities of illite and in lesser extend kaolinite and smectites. The illite was probably generated by diagenetic changes. The high cristalinidad of non expandibles and fireclay clay show the antique of the silts [es

  19. 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.

  20. 1959: los intentos de derrocamiento de las dictaduras de Trujillo, Stroessner y Luis Somoza

    Directory of Open Access Journals (Sweden)

    María Dolores Ferrero Blanco

    2016-03-01

    Full Text Available El triunfo de la revolución cubana trajo, entre sus múltiples consecuencias, la reanimación de la oposición a las tres dictaduras fuertes en 1959: la República Dominicana, Nicaragua y Paraguay. En el presente artículo se analizan las características generales de las mismas, los paralelismos y diferencias entre Trujillo, Stroessner y Somoza, al tiempo que se exponen los diversos intentos de los opositores exiliados para acabar con los regímenes tiránicos implantados en sus respectivos países. Las fuentes utilizadas proceden de los archivos nacionales y de relaciones exteriores, especialmente la documentación diplomática, que aporta una visión singular de los embajadores dependiendo de los destinos. Palabras clave: Rafael Leónidas Trujillo, Luis Somoza, Alfredo Stroessner, dictaduras iberoamericanas, revolución cubana, oposición a las dictaduras._______________________________Abstract: Cuban revolution success brought, among its multiple consequences, the liveliness of the political opposition against the three dictatorships in 1959: the Dominican Republic, Nicaragua and Paraguay. In the present article it is analyzed their general characteristics of the same ones, the differences between Trujillo, Stroessner and the Somoza's, as same as it is exposed the several attempts of the exiles op-ponents to end the implanted tyrannies' regimes in their respective countries. The sources used come from the national archives and foreign relations, especially the diplomatic docu-mentation, that contributes with a singular vision of the ambassadors depending on their destinies, an optics that serves us to know the relations established between the three dictators.Keywords: Rafael Leónidas Trujillo, Luis Somoza, Alfredo Stroessner, latinoamerican dictatorships, Cuban Revolution, dictatorships political opposition.    

  1. 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

  2. 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...

  3. Processes affectin the chemistry of waters passing through a high elevator Sierra Nevada watershed. [U. S. A

    Energy Technology Data Exchange (ETDEWEB)

    Nodvin, S.C.

    1987-01-01

    The Eastern Brook Lakes watershed is located in the Sierra Nevada Mountains of California and spans and elevational range from 3060 to 3780 m. Changes in stream and lake chemistries along spatial and temporal flowpaths demonstrate that both terrestrial and aquatic processes were important in regulating surface water chemistries within the 250 ha watershed. Streams generally showed increasing pH, alkalinity, and conductance values with decreasing elevation. Large changes in stream chemistries occurred over short distances at locations such as alpine meadows. During the spring, stream alkalinities and conductance values decreased while stream pH values increased with time. pH values reached their maximim in June when alkalinity and conductance values were at their minimum values. Internal lake processes strongly influenced the chemistry of Upper Eastern Brook Lake. During spring and summer, lake waters exhibited near-neutral pH, low conductance (10-12 ..mu..S/cm), low alkalinity (100-120 ..mu..Eq/L), and undetectable ammonium. Under the ice, major changes in lake chemistry occurred associated with oxygen depletion in the hypolimnion. pH values decreased with time towards a minimum of 6.3 at 6 m depth. Other parameters increased w time and depth under the ice, reaching maximum values as follows: conductance > 80 ..mu..S/cm/sup -1/ Gran's alkalinity > 370 ..mu..Eq/L/sup -1/, and ammonium > 50 /sup m/u/sup E/q/L/sup -1/. 5 figures, 10 references.

  4. 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

  5. 77 FR 49789 - Record of Decision for Issuing a Presidential Permit to Energia Sierra Juarez U.S. Transmission...

    Science.gov (United States)

    2012-08-17

    ... Energia Sierra Juarez U.S. Transmission, LLC, for the Energia Sierra Juarez U.S. Transmission Line Project...: Record of Decision (ROD). SUMMARY: DOE announces its decision to issue a Presidential permit to Energia... analyzed in the Environmental Impact Statement for the Energia Sierra Juarez U.S. Transmission Line Project...

  6. Curriculum Diversification Re-examined--A Case Study of Sierra Leone.

    Science.gov (United States)

    Wright, Cream A. H.

    This paper deals with a case study of secondary curriculum diversification as a vocationalization strategy in Sierra Leone. It explores diversification issues from four crucial standpoints that are distinct but highly interrelated. First, diversification is dealt with as a policy that was adopted and actively pursued by Sierra Leone for over a…

  7. Increasing elevation of fire in the Sierra Nevada and implications for forest change

    Science.gov (United States)

    Mark W. Schwartz; Nathalie Butt; Christopher R. Dolanc; Andrew Holguin; Max A. Moritz; Malcolm P. North; Hugh D. Safford; Nathan L. Stephenson; James H. Thorne; Phillip J. van Mantgem

    2015-01-01

    Fire in high-elevation forest ecosystems can have severe impacts on forest structure, function and biodiversity. Using a 105-year data set, we found increasing elevation extent of fires in the Sierra Nevada, and pose five hypotheses to explain this pattern. Beyond the recognized pattern of increasing fire frequency in the Sierra Nevada since the late 20th century, we...

  8. Nitrogen dynamics of spring-fed wetland ecosystems of the Sierra Nevada foothills oak woodland

    Science.gov (United States)

    Randall D. Jackson; Barbara Allen-Diaz

    2002-01-01

    Spring-fed wetlands are small, highly productive, patchy ecosystems nested within the oak woodland/annual grassland matrix of the Sierra Nevada foothills. In an effort to place these wetlands in a landscape context, we described seasonal variation (1999-2000 growing season) in nitrogen cycling parameters at 6 spring-fed wetland sites of the Sierra Nevada foothill oak...

  9. A preliminary floristic inventory in the Sierra de Mazatan, Municipios of Ures and Mazatan, Sonora, Mexico

    Science.gov (United States)

    Jose Jesus Sanchez-Escalante; Manuel Espericueta-Betancourt; Reyna Amanda Castillo-Gamez

    2005-01-01

    Presently, the flora of the Sierra de Mazatán contains 357 species of vascular plants distributed in 248 genera and 80 families. The families with the most species are Asteraceae (48), Fabaceae (45), Poaceae (28), Euphorbiaceae (18), and Acanthaceae, Cactaceae, Scrophulariaceae, and Solanaceae (11 each). The results show that the flora of the Sierra de Mazat...

  10. Assessment of Anemia Knowledge, Attitudes and Behaviors among Pregnant Women in Sierra Leone

    Science.gov (United States)

    M'Cormack, Fredanna A. D.; Drolet, Judy C.

    2012-01-01

    Introduction: Iron deficiency anemia prevalence of pregnant Sierra Leone women currently is reported to be 59.7%. Anemia is considered to be a direct cause of 3-7% of maternal deaths and an indirect cause of 20-40% of maternal deaths. This study explores knowledge, attitudes, and behaviors of urban pregnant Sierra Leone women regarding anemia.…

  11. High Sierra Ecosystems: The Role of Fish Stocking in Amphibian Declines

    Science.gov (United States)

    Kathleen Matthews

    2003-01-01

    With a rich diversity of aquatic habitats, including deep lakes, shallow ponds, and rushing streams, Dusy Basinin Sequoia-Kings Canyon National Parks typifies the high Sierra ecosystem where mountain yellow-legged frogs usually thrive. Yet throughout the Sierra, aquatic ecologist Kathleen Matthews found entire water basins empty of these amphibians. Comprehensive...

  12. Timing the evolution of a monogenetic volcanic field: Sierra Chichinautzin, Central Mexico

    Science.gov (United States)

    Jaimes-Viera, M. C.; Martin Del Pozzo, A. L.; Layer, P. W.; Benowitz, J. A.; Nieto-Torres, A.

    2018-05-01

    The unique nature of monogenetic volcanism has always raised questions about its origin, longevity and spatial distribution. Detailed temporal and spatial boundaries resulted from a morphometric study, mapping, relative dating, twenty-four new 40Ar/39Ar dates, and chemical analyses for the Sierra Chichinautzin, Central Mexico. Based on these results the monogenetic cones were divided into four groups: (1) Peñón Monogenetic Volcanic Group (PMVG); (2) Older Chichinautzin Monogenetic Volcanic Group (Older CMVG); (3) Younger Chichinautzin Monogenetic Volcanic Group (Younger CMVG) and (4) Sierra Santa Catarina Monogenetic Volcanic Group (SSC). The PMVG cover the largest area and marks the northern and southern boundaries of this field. The oldest monogenetic volcanism (PMVG; 1294 ± 36 to 765 ± 30 ka) started in the northern part of the area and the last eruption of this group occurred in the south. These basaltic-andesite cones are widely spaced and are aligned NE-SW (N60°E). After this activity, monogenetic volcanism stopped for 527 ka. Monogenetic volcanism was reactivated with the birth of the Tezoyuca 1 Volcano, marking the beginning of the second volcanic group (Older CMVG; 238 ± 51 to 95 ± 12 ka) in the southern part of the area. These andesitic to basaltic andesite cones plot into two groups, one with high MgO and Nb, and the other with low MgO and Nb, suggesting diverse magma sources. The eruption of the Older CMVG ended with the eruption of Malacatepec volcano and then monogenetic volcanism stopped again for 60 ka. At 35 ka, monogenetic volcanism started again, this time in the eastern part of the area, close to Popocatépetl volcano, forming the Younger CMVG (<35 ± 4 ka). These cones are aligned in an E-W direction. Geochemical composition of eruptive products of measured samples varies from basalts to dacites with low and high MgO. The Younger CMVG is considered still active since the last eruptions took place <2 ka. The SSC (132 ± 70 to 2 ± 56 ka

  13. Eastern Redcedar Seedling Assessment

    Data.gov (United States)

    U.S. Environmental Protection Agency — Eastern redcedar tree seedling growth in response to various soil, nitrogen, and photosynthetic radiation characteristics. This dataset is associated with the...

  14. Sierra/SolidMechanics 4.48 User's Guide: Addendum for Shock Capabilities.

    Energy Technology Data Exchange (ETDEWEB)

    Plews, Julia A.; Crane, Nathan K; de Frias, Gabriel Jose; Le, San; Littlewood, David John; Merewether, Mark Thomas; Mosby, Matthew David; Pierson, Kendall H.; Porter, Vicki L.; Shelton, Timothy; Thomas, Jesse David; Tupek, Michael R.; Veilleux, Michael; Xavier, Patrick G.

    2018-03-01

    This is an addendum to the Sierra/SolidMechanics 4.48 User's Guide that documents additional capabilities available only in alternate versions of the Sierra/SolidMechanics (Sierra/SM) code. These alternate versions are enhanced to provide capabilities that are regulated under the U.S. Department of State's International Traffic in Arms Regulations (ITAR) export-control rules. The ITAR regulated codes are only distributed to entities that comply with the ITAR export-control requirements. The ITAR enhancements to Sierra/SM in- clude material models with an energy-dependent pressure response (appropriate for very large deformations and strain rates) and capabilities for blast modeling. Since this is an addendum to the standard Sierra/SM user's guide, please refer to that document first for general descriptions of code capability and use.

  15. 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...

  16. Implementation of Safeguards and Non-Proliferation in Sierra Leone

    International Nuclear Information System (INIS)

    George, M.

    2015-01-01

    Sierra Leone under the Comprehensive Safeguards Agreements (CSAs) has enacted the Nuclear Safety and Radiation Protection (NSRP) Act 2012 and has given numerous powers to the Authority to implement the above mentioned act fully. The NSRP Act 2012 established the Nuclear Safety and Radiation Protection Authority which among other things to regulate, control and supervise the acquisition, importation, exportation, use, transportation and disposal of radioactive sources and devices emitting Ionizing Radiation. The Authority is bounded by law to cooperate with the International Atomic Energy Agency in the application of Safeguards Agreement and any protocol thereto between Sierra Leone and the International Atomic Energy Agency including conducting inspections and providing any assistance or information required by designated IAEA inspectors in the fulfillment of their responsibilities pursuant to Section 5, Subsection 2, Article xvi of the NSRP Act 2012. The Authority is also granted powers to adopt all necessary measures including a system of licensing to control the export, re-export, transit and transhipment of any nuclear material, equipment or technology in order to protect the safety and security of Sierra Leone. The Regulatory Authority has established departments for the control of nuclear materials: One of which is The Regulatory Control Department; responsible for Inspections, Authorization and Enforcement actions for all radiation sources and nuclear materials. The Authority has been conducting inspections regularly on various facilities ranging from medical radiation generating equipment to industrial radiography sources. The methodology to be used is the issuance of the standard IAEA checklist which is consistent with the Regulatory Authority’s documents for inspection of sources and is in line with the General Safety Requirements(GSR)Part III. The expected outcomes would be increasing training of regulatory authority’s staff, the procurement of

  17. Combined spatial prediction of schistosomiasis and soil-transmitted helminthiasis in Sierra Leone: a tool for integrated disease control.

    Directory of Open Access Journals (Sweden)

    Mary H Hodges

    Full Text Available BACKGROUND: A national mapping of Schistosoma haematobium was conducted in Sierra Leone before the mass drug administration (MDA with praziquantel. Together with the separate mapping of S. mansoni and soil-transmitted helminths, the national control programme was able to plan the MDA strategies according to the World Health Organization guidelines for preventive chemotherapy for these diseases. METHODOLOGY/PRINCIPAL FINDINGS: A total of 52 sites/schools were selected according to prior knowledge of S. haematobium endemicity taking into account a good spatial coverage within each district, and a total of 2293 children aged 9-14 years were examined. Spatial analysis showed that S. haematobium is heterogeneously distributed in the country with significant spatial clustering in the central and eastern regions of the country, most prevalent in Bo (24.6% and 8.79 eggs/10 ml, Koinadugu (20.4% and 3.53 eggs/10 ml and Kono (25.3% and 7.91 eggs/10 ml districts. By combining this map with the previously reported maps on intestinal schistosomiasis using a simple probabilistic model, the combined schistosomiasis prevalence map highlights the presence of high-risk communities in an extensive area in the northeastern half of the country. By further combining the hookworm prevalence map, the at-risk population of school-age children requiring integrated schistosomiasis/soil-transmitted helminth treatment regimens according to the coendemicity was estimated. CONCLUSIONS/SIGNIFICANCE: The first comprehensive national mapping of urogenital schistosomiasis in Sierra Leone was conducted. Using a new method for calculating the combined prevalence of schistosomiasis using estimates from two separate surveys, we provided a robust coendemicity mapping for overall urogenital and intestinal schistosomiasis. We also produced a coendemicity map of schistosomiasis and hookworm. These coendemicity maps can be used to guide the decision making for MDA strategies in combination

  18. The Tunas Formation (Permian) in the Sierras Australes foldbelt, east central Argentina: evidence for syntectonic sedimentation in a foreland basin

    Science.gov (United States)

    Lopez-Gamundi, O. R.; Conaghan, P. J.; Rossello, E. A.; Cobbold, P. R.

    1995-04-01

    The Tunas Formation, extensively exposed in the Sierras Australes foldbelt of eastern central Argentina, completes the sedimentation of the Gondwanan (Late Carboniferous-Permian) sequence, locally known as the Pillahuincó Group. The underlying units of the Group show an integrated depositional history which can be explained in terms of glaciomarine sedimentation (Sauce Grande Formation) and postglacial transgression (Piedra Azul and Bonete Formations). This succession also has a rather uniform quartz-rich, sand-sized composition indicative of a cratonic provenance from the Tandilia Massif to the northeast. Early to Late Permian deformation folded and thrusted the southwestern basin margin (Sierras Australes) and triggered the deposition of a 1,500 m — thick, synorogenic prograding wedge, the Tunas Formation, in the adjacent foreland basin (Sauce Grande or Claromecó Basin). Sandstone detrital modes for the Tunas deposits show moderate to low contents of quartz and abundant lithics, mostly of volcanic and metasedimentary origin. Paleocurrents are consistently from the SW. Tuffs interbedded with sandstones in the upper half of Tunas Formation (Early — early Late? Permian) are interpreted as being derived from volcanic glass-rich tuffs settled in a body of water. Extensive rhyolitic ignimbrites and consanguineous airborne tuffaceous material erupted in the northern Patagonian region during that period. The age constraints and similarities in composition between these volcanics and the tuffaceous horizons present in the Sauce Grande, Parana and Karoo Basins suggest a genetic linkage between these two episodes. The intimate relationship between volcanic activity inboard of the paleo-Pacific margin, deformation in the adjacent orogenic belt and subsidence and sedimentation in the contiguous foreland basin constitutes a common motif in the Sauce Grande and Karoo Basins of southwestern Gondwana.

  19. Combined spatial prediction of schistosomiasis and soil-transmitted helminthiasis in Sierra Leone: a tool for integrated disease control.

    Science.gov (United States)

    Hodges, Mary H; Soares Magalhães, Ricardo J; Paye, Jusufu; Koroma, Joseph B; Sonnie, Mustapha; Clements, Archie; Zhang, Yaobi

    2012-01-01

    A national mapping of Schistosoma haematobium was conducted in Sierra Leone before the mass drug administration (MDA) with praziquantel. Together with the separate mapping of S. mansoni and soil-transmitted helminths, the national control programme was able to plan the MDA strategies according to the World Health Organization guidelines for preventive chemotherapy for these diseases. A total of 52 sites/schools were selected according to prior knowledge of S. haematobium endemicity taking into account a good spatial coverage within each district, and a total of 2293 children aged 9-14 years were examined. Spatial analysis showed that S. haematobium is heterogeneously distributed in the country with significant spatial clustering in the central and eastern regions of the country, most prevalent in Bo (24.6% and 8.79 eggs/10 ml), Koinadugu (20.4% and 3.53 eggs/10 ml) and Kono (25.3% and 7.91 eggs/10 ml) districts. By combining this map with the previously reported maps on intestinal schistosomiasis using a simple probabilistic model, the combined schistosomiasis prevalence map highlights the presence of high-risk communities in an extensive area in the northeastern half of the country. By further combining the hookworm prevalence map, the at-risk population of school-age children requiring integrated schistosomiasis/soil-transmitted helminth treatment regimens according to the coendemicity was estimated. The first comprehensive national mapping of urogenital schistosomiasis in Sierra Leone was conducted. Using a new method for calculating the combined prevalence of schistosomiasis using estimates from two separate surveys, we provided a robust coendemicity mapping for overall urogenital and intestinal schistosomiasis. We also produced a coendemicity map of schistosomiasis and hookworm. These coendemicity maps can be used to guide the decision making for MDA strategies in combination with the local knowledge and programme needs.

  20. Expansão espacial da leishmaniose visceral americana em São Luis, Maranhão, Brasil Space expansion of the American visceral leishmaniasis in São Luis, Maranhão, Brazil

    Directory of Open Access Journals (Sweden)

    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.

  1. Psychosocial support and resilience building among health workers in Sierra Leone: interrelations between coping skills, stress levels, and interpersonal relationships.

    Science.gov (United States)

    Vesel, Linda; Waller, Kathryn; Dowden, Justine; Fotso, Jean Christophe

    2015-01-01

    In low- and middle-income countries, a shortage of properly trained, supervised, motivated and equitably distributed health workers often hinder the delivery of lifesaving interventions. Various health workforce bottlenecks can be addressed by tackling well-being and interpersonal relationships of health workers with their colleagues and clients. This paper uses data from the Helping Health Workers Cope (HHWC) project in a rural district of Sierra Leone to achieve three objectives. First, we describe the effect of counseling and psychosocial training on coping skills, stress levels, and provider-provider and provider-client relationships. Second, we examine whether a change in coping skills is associated with a change in relationships. Finally, we qualitatively identify key ways through which the uptake of coping skills is linked to a change in relationships. The HHWC project was implemented from February 2012 to June 2013 in Kono district in the Eastern province of Sierra Leone, with the neighboring district of Tonkolili selected as the control site. The evaluation followed a mixed-methods approach, which included a quantitative survey, in-depth interviews and focus group discussions with health workers and clients. Mean values of the variables of interest were compared across sub-populations, and correlation analyses were performed between changes in coping skills, stress levels, and changes in relationships. Overall, the results demonstrate that the HHWC intervention had a positive effect on coping skills, stress levels and provider-provider and provider-client relationships. Furthermore, associations were observed between changes in coping skills and changes in relationships as well as changes in stress management skills and changes in relationships. Psychosocial education can have major impacts on health worker well-being and the quality of health care delivery. Integrating psychosocial counseling and training interventions into health worker pre-service and

  2. Novel Retinal Lesion in Ebola Survivors, Sierra Leone, 2016.

    Science.gov (United States)

    Steptoe, Paul J; Scott, Janet T; Baxter, Julia M; Parkes, Craig K; Dwivedi, Rahul; Czanner, Gabriela; Vandy, Matthew J; Momorie, Fayiah; Fornah, Alimamy D; Komba, Patrick; Richards, Jade; Sahr, Foday; Beare, Nicholas A V; Semple, Malcolm G

    2017-07-01

    We conducted a case-control study in Freetown, Sierra Leone, to investigate ocular signs in Ebola virus disease (EVD) survivors. A total of 82 EVD survivors with ocular symptoms and 105 controls from asymptomatic civilian and military personnel and symptomatic eye clinic attendees underwent ophthalmic examination, including widefield retinal imaging. Snellen visual acuity was Ebola virus, permitting cataract surgery. A novel retinal lesion following the anatomic distribution of the optic nerve axons occurred in 14.6% (97.5% CI 7.1%-25.6%) of EVD survivors and no controls, suggesting neuronal transmission as a route of ocular entry.

  3. Environmental exposures to agrochemicals in the Sierra Nevada mountain range

    Science.gov (United States)

    LeNoir, J.; Aston, L.; Data, S.; Fellers, G.; McConnell, L.; Sieber, J.

    2000-01-01

    The release of pesticides into the environment may impact human and environmental health. Despite the need for environmental exposure data, few studies quantify exposures in urban areas and even fewer determine exposures to wildlife in remote areas. Although it is expected that concentrations in remote regions will be low, recent studies suggest that even low concentrations may have deleterious effects on wildlife. Many pesticides are known to interfere with the endocrine systems of humans and wildlife, adversely affecting growth, development, and behavior. This chapter reviews the fate and transport of pesticides applied in the Central Valley of California and quantifies their subsequent deposition into the relatively pristine Sierra Nevada Mountain Range.

  4. Casa-estudio de Luis de Pablo - Madrid – España

    Directory of Open Access Journals (Sweden)

    Fernández Alba, A.

    1973-04-01

    Full Text Available The site is slightly rectangular of about 1,000 m2, near the Sierra de Guadarrama. The house is designed according to an axial pattern: - guests area with three bedrooms; couple's bedroom and toilet; - living area and eating zone; - private studio, with bedroom and bathroom in upper floor. A swimming-pool with a recreation area in the open air and a garage under the living area complete the building. The walls are constructed of precast concrete cross-split units, with insulant and gypsum plaster division. The floors are of reinforced concrete with acoustic absorbing cladding; flat roofing of galvanized sheet; interior floors of moquette and exterior floors of lightweight concrete tiles. The windows are externally of anodized aluminium and internally of formica with aluminium edges.La vivienda ocupa una parcela sensiblemente rectangular de unos 1.000 m2 de superficie, situada cerca de la Sierra de Guadarrama. El programa se ha desarrollado según un esquema axil con tres conceptos diferentes – zona de invitados, con tres dormitorios y su zona de aseo; -zona de estancia, reunión y comidas, y – la zona de estudio privado, con el área de dormitorios y baño situada en un plano superior. Se completa el conjunto con una piscina, unas áreas de expansión al aire libre, y un garaje situado bajo la zona de estancia. Sistema constructivo: muros resistentes de piezas prefabricadas de hormigón seccionadas, con aislante y tabique interior guarnecido y enlucido de yeso; moqueta como revestimiento de los suelos interiores, y losetas de hormigón ligero en la pavimentación de los exteriores, la carpintería en huecos exteriores es de aluminio anodizado, y en el interior, de formica, protegida por cantes de aluminio.

  5. Ampliación de la distribución de Physalaemus biligonigerus (Cope, 1860 (Anura: Leiuperidae en la provincia de San Luis, Argentina

    Directory of Open Access Journals (Sweden)

    Moreno, Liliana

    2008-03-01

    Full Text Available República Argentina, San Luis, Departamento Gral. Pedernera, Villa Mercedes (33º42'18,71" S 66º26'27,98" W. Fecha de colección: 29/XII/ 2006. Col: R. Gutierrez y L. Moreno. Los ejemplares están depositados en la Colección Herpetológica de la Universidad Nacional de San Luis (CH-UNSL 0389 – CH-UNSL 0390.

  6. 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.

  7. 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

  8. PARADOXURILE CONCEPŢIEI POLITICE ÎN OPERA LUI JEAN-JACQUES ROUSSEAU

    Directory of Open Access Journals (Sweden)

    Alexandru MAZILU

    2015-12-01

    Full Text Available Ideile lui Rousseau au avut un impact major asupra societăţii la sfârşitul sec. al XVIII-lea şi pe parcursul întregii perioade a sec. al XIX-lea. Aceste idei au imprimat un suflu modern cugetului său, fiind considerat şi un ideologist politic, o voce puternică a Revoluţiei Franceze şi un pioner al curentului romantic. În legătură cu domeniul nostru de studiu, paradoxurile concepţiei politice ale lui Rousseau se referă la contradicţia dintre aspiraţiile modernităţii şi criticile violente ale progresului social. El pune accentul pe contradicţia dintre încrede-rea deplină în ,,contractul social”, ca pattern cultural şi lipsa de încredere în ,,educaţia socială”. Unicul mod de a depăşi aceste contradicţii este abordarea noului model al filosofiei educaţiei bazat pe reforme radicale pentru a facilita autodezvoltarea individului.   THE PARADOXES OF POLITICAL CONCEPTION IN THE WORK OF JEAN-JACQUES ROUSSEAUHis ideas have a big impact on the society at the end of the 18th century and the whole 19th century period. These ideas transform his spirit into a modern one, as well as a political ideologist, main voice of the French Revolution and pioneer of the Romantic Movement. Related to our article subject, Rousseau's political conceptual paradoxes refer to the contradiction between moderni-ty aspiration and the violent critic of the social progress. He emphasizes the contradiction between full trust of the "social contract", as a cultural pattern and the distrust of the "social education." The only way to leave the contradictions behind is his new education philosophy pattern based on a radical reform in order for the individual to develop himself.

  9. Luis Moya y las bóvedas tabicadas en la posguerra española

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    Adell, Josep Mª

    2005-04-01

    Full Text Available In the precarious economic conditions prevailing after the Spanish Civil War, tiled vault construction was resumed to economize on steel and capitalize on the cheap labour available at the time.
    Luis Moya excelled in this area, re-exploring this construction technique. Moya benefited in this regard from his thorough knowledge of the early twentieth century works of the Guastavinos in New York acquired during his visits to the U.S.A. with Professor Collins.
    His architecture featured tiled vaults with medium-sized spans, normally reinforced with exposed internal Basque tiled arches or ribbing on the extrados.
    He described his architectural experimentation in this field in a book titled "Bóvedas tabicadas" (tile vaults, one of the few extensive treatises on the subject, which surpassed the papers published earlier by Fornés-Gurrea and Bergós.

    Después de la Guerra Civil, y ante la precaria situación económica del pais, se volvió a retomar en España, la construcción tabicada como medio de encomizar acero en la edificación, y aprovechando la mano de obra barata del momento.
    Luis Moya destacó en este aspecto, reinvestigando sobre la construcción tabicada siendo perfectamente conocedor de la obra de los Guastavino en Nueva York, de principios de siglo, por sus visitas realizadas acompañadas del Profesor Collins a EEUU.
    La arquitectura de Moya destacó por aplicar soluciones de bóvedas tabicadas de mediana luz que normalmente reforzaba empleando arcos tabicados internos vistos, o bien acostillando las bóvedas por sus trasdós.
    Esta labor arquitectónica basada en su propia experimentación constructiva, la publicó en el libro "Bóvedas Tabicadas", siendo uno de los pocos tratados amplios sobre este tema existente, superando con él a lo publicado por Fornés-Gurrea y Bergós con anterioridad.

  10. Una aproximación al poema “Arte Poética” de Jorge Luis Borges

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    Lorena Chaves Salgado

    2013-01-01

    Full Text Available Este artículo presenta una lectura del poema 'Arte poética' de Jorge Luis Borges desarrollando aspectos teóricos relacionados con el análisis poético. El poema describe la labor del poeta y qué significa escribir poesía, entendido para Borges como un acto y proceso creativo.

  11. Fé antropológica como ponte entre fé e ideología em Juan Luis Segundo

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    Alvori Ahlert

    2007-01-01

    Full Text Available Este texto busca a compreensão da ideología em sua relação com a fé na teologia latinoamericana a partir da concepção de fé antropológica na obra de Juan Luis Segundo. Acreditamos que a questão da ideología, e sua relação com a fé, continua sendo urna questão atual no pensamento cristão, face aos velhos e novos problemas humanos que o novo sáculo vem apresentando. Concentramos nossa análise nos escritos de Juan Luis Segundo, um dos principáis representantes dessa teologia, por ser este teólogo que, ao nosso ver, mais trabalhou, de forma explícita, a questão da ideología e sua relação com a fé no contexto latinoamericanoThis text searchs the understanding of the ideology in its relation with the faith in the Latin American theology from the conception of antropology faith in the workmanship of Juan Luis Segundo. We believe that the question of the ideology, and its relation with the faith, continue being a current question in the Christian thought, face to the old and new human problems that the new century comes presenting. We concentrate our analysis on the writings of Juan Luis Segundo, one of the main representatives of this theology, for being this theologian who, to ours to see, more worked, of explicit form, the question of the ideology and its relation with the faith in the Latin American context

  12. Contradictions porteñas: modernity, modernism and modernization in Jorge Luis Borges during the 1920’s

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    Pedro Demenech

    2013-06-01

    Full Text Available The aim of the article is discuss the concepts of modernity, modernism and modernization from the propositions raised by Marshal Berman and Néstor García Canclini. The fierce transformation of Buenos Aires during the 1920’s will be the focus of the analysis. To this end, we use the work of argentine poet Jorge Luis Borges to comprehend the development of these processes in the urban space of Buenos Aires.

  13. El modelo ideal de interactividad es la conversación. Entrevista a José Luis Orihuela

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    Juan Salvador Victoria Mas

    2012-04-01

    Full Text Available José Luis Orihuela, "profesor universitario, conferenciante y bloguer" - tal y como él mismo se define-, habla sobre la interactividad como una potencia o una capacidad de los dispositivos (ordenadores y redes que actualiza o ejecuta el usuario en la medida en que inicia acciones que generan una respuesta por parte del sistema o de otros usuarios. Tras unas preguntas para adentrarnos en dicho concepto, Orihuela relaciona interactividad con diálogo y otros conceptos.

  14. Gas in Eastern Europe

    International Nuclear Information System (INIS)

    Anon.

    1994-01-01

    West European gas companies have long recognised the potential for lucrative business within eastern Europe. But they recognise that the region's integration into the west European system will be far from straightforward, with deals between east European gas companies and their western counterparts invariably containing financial mechanisms, such as barter trade, that are designed to cope with the easterners' shortage of hard currency. (author)

  15. Middle Eastern rhinoplasty.

    Science.gov (United States)

    Azizzadeh, Babak; Mashkevich, Grigoriy

    2010-02-01

    The ethnic appearance of the Middle Eastern nose is defined by several unique visual features, particularly a high radix, wide overprojecting dorsum, and an amorphous hanging nasal tip. These external characteristics reflect distinct structural properties of the osseo-cartilaginous nasal framework and skin-soft tissue envelope in patients of Middle Eastern extraction. The goal, and the ultimate challenge, of rhinoplasty on Middle Eastern patients is to achieve balanced aesthetic refinement, while avoiding surgical westernization. Detailed understanding of the ethnic visual harmony in a Middle Eastern nose greatly assists in preserving native nasal-facial relationships during rhinoplasty on Middle Eastern patients. Esthetic alteration of a Middle Eastern nose follows a different set of goals and principles compared with rhinoplasties on white or other ethnic patients. This article highlights the inherent nasal features of the Middle Eastern nose and reviews pertinent concepts of rhinoplasty on Middle Eastern patients. Essential considerations in the process spanning the consultation and surgery are reviewed. Reliable operative techniques that achieve a successful aesthetic outcome are discussed in detail. Copyright 2010 Elsevier Inc. All rights reserved.

  16. PROBLEMS IN THE ADMISSION TO HIGHER EDUCATION IN THE LOWER SIERRA DE SONORA, CASE: UNIVERSITY OF SIERRA

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    Rubén Ángel Vásquez-Navarro

    2011-05-01

    Full Text Available The aim of this paper is to clarify the issues and find solutions to align somewhat academic models of institutions of higher average level and above found in the central highlands of the state of Sonora, as are the University of Sierra, and the CBTA 53 and confront the culture of the people of the importance of young people studying a degree in that region.The above educational institutions are located in the geographical catchment area and education, in fact, in the same population, in the northeastern state of Sonora. The mountains of Sonora had always intended to have a school of higher education. To justify the town of Montezuma as a geographically strategic point, and thanks to the efforts made by the governor in turn was as the University of Sierra opens its doors to students on the mountain in August 2002.For the analysis of the functioning of an educational institution in the rural sector, should take into account a wide range of factors, however, this work will be key to analyze the dislocation and inconsistency of educational models from an institution of higher average level in relationship to another level, which serve as a unique educational opportunities for the people of Sonora and surrounding Montezuma. In addition, the cultural aspect, which reflects a regional behavior of the inhabitants of the region. La Sierra University is located in the mountainous region of the state of Sonora, in the town of Montezuma, with a catchment area of more than 30 municipalities in this area, which lacked a college until recently time.

  17. The Sierra de Cabral range: a restraining bend related to the Sierra Ballena shear zone in Dom Feliciano belt

    International Nuclear Information System (INIS)

    Masquelin, H.

    2010-01-01

    Restraining and releasing bends occurring in all crustal environments are common but enigmatic features of strike-slip fault systems. They can be reported in all scales of observation. Regional-scale restraining bends are sites of mountain building, transpressional deformation and basement exhumation. Releasing bends are sites of subsidence, transtensional deformation and pull-apart basins. The Dom Feliciano Belt of Southern Uruguay has two main structures observed from the outer space: (i) the Sierra Ballena Shear Zone and (ii) the Sierra de Cabral flexure located to the SW of the former. Although a transpressional regime is commonly accepted for the Dom Feliciano Belt, the available tectonic models do not provide satisfactory explanations for its building mechanism. A restraining bend is proposed at the SW termination of Sierra Ballena strike-slip ductile shear zone. In a key-area (Alvariza Range) the relationship between the Zanja del Tigre volcanic-detritic and the calcareous succession shows three en-échelon upright bends of the same quartzite hanging-wall between two sub-vertical strike-slip faults, suggesting the existence of a shortened strike-slip duplex operating in viscous-elastic rheology. The deformation partitioning includes strike-slip and dip-slip simple-shear components as well as one contractional pure-shear component. Because restraining bends were scarcely described in Neoproterozoic low-grade regional exhumation conditions, this structural framework would be a natural laboratory to study fault kinematics, fault dynamics, their associated deformation and the tectonic and erosion constraints related to the exhumation of many crystalline terrains

  18. 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.

  19. 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.

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

    Directory of Open Access Journals (Sweden)

    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.

  1. Epidemiological profile of leprosy in municipality of Sao Luis - Ma from 2006 to 2010

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    Líndia Kalliana da Costa Araújo Alves Carvalho

    2014-02-01

    Full Text Available Objetivo: Analisar o perfil epidemiológico da Hanseníase em São Luís - MA no período de 2006 a 2010. Método: Trata-se de um estudo descritivo, exploratório, quantitativo de casos de hanseníase no município de São Luis- MA, em 2006 a 2010. Os dados foram coletados no Departamento de Informática do Sistema Único de Saúde (DATASUS. Foram coletadas as informações: taxa de incidência, classificação operacional, faixa etária e forma clínica. Resultados: O presente estudo demonstrou altas taxas de incidência sendo a mais alta em 2006. A forma multibacilar foi a mais diagnosticada com ápice em 2009, quanto a faixa etária predominou os maiores de 15 anos. As formas clínicas predominantes foram a dimorfa e a tuberculóide. Conclusão: Os profissionais de saúde devem conhecer medidas profiláticas, avaliação e tratamento para evitar que esses números continuem crescendo e evitar assim incapacidades físicas.

  2. Una mirada a Donde ladrón no llega de Luis Hernáez

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    Nini Johanna Sánchez Ávila

    2006-01-01

    Full Text Available En 1996 aparece publicada la obra Donde ladrón no llega, del escritor paraguayo Luis Hernáez; este trabajo plantea una nueva lectura de la experiencia de las Reducciones Jesuitas en el Paraguay. Es, precisamente, esa forma de valoración en la recreación de la historia la que motiva este texto, ya que presenta una reconstrucción y una mirada crítica sobre un proyecto utópico adelantado en América. Tal propuesta es evaluada desde las voces de aquellos que –aún siendo protagonistas directos del evento social- no tuvieron una voz que se destacara en la delimitación de esta experiencia. Así, se abordará qué tipo de visión de la historia plantea el autor y cómo esta perspectiva se desarrolla en torno a una concepción específica de la propuesta de la utopía para América Latina.

  3. Analysis of José Luis Rodríguez Zapatero’s nonverbal communication

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    Imelda Rodríguez-Escanciano, Ph.D.

    2010-01-01

    Full Text Available Aware of television’s high level of persuasion and impact, politicians have progressively adapted their messages to the guidelines of the audiovisual media in order to strongly persuade TV viewers, which are seen as potential voters. Currently, the communication, marketing and telegenicity teams of most political parties do not only train their politicians to effectively use verbal communication, but they also try to reinforce their non-verbal communications skills, because they understand that a really effective message is only created through the correct combination of both dimensions. This article presents an in-depth study of the nonverbal communication displayed by the Prime Minister of Spain, José Luis Rodríguez Zapatero, during the first quarter of 2010 when a political topic predominated in the agenda: the financial crisis. Through content analysis, and a self-developed methodology, the study aims to decipher the strategic meaning of this political leader’s kinesic behaviour in the second edition of Telediario, the news programme broadcast by Spain’s Public TV Network (Televisión Española, aka, TVE.

  4. The pastoral implications of human freedom according to Juan Luis Segundo

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    Vicente de Paula Ferreira

    2016-09-01

    Full Text Available The paper aims to reflect the issue of human freedom based on the underlying principles of the Christian faith in a time of anthropological vulnerability, especially in Latin American. It holds that Christianity must insist on its proposal to promote universal goodwill, despite a human horizon marked by selfishness and lust for power and money. This approach presupposes a radical position of a listener of the divine mystery, revealed in Jesus Christ, as a way to fulfill the human condition. Theoretical framework: Liberation Theology, in the view of Juan Luis Segundo, and its well-established tradition of transforming realities of injustice through faith, comprises the core argument of this text. Findings: Christian salvation necessarily implies the kenosis (κένωσις of Jesus, i.e., Christ “emptied Himself” (Ph. 2:7, and through His humble dispossession, He broke with all closed systems of the world, and inaugurated a new venture of a liberated freedom: the agape of love. Conclusion: Christian praxis as daily care for the poorest and prophecy of forgiveness rescues the memory of the victims of all forms of human selfishness. 

  5. Corporalidad, espacio y nuevas formas de socialidad en la cinematografía de Luis Ortega

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    Esteban Marcos Dipaola

    2010-08-01

    Full Text Available El artículo analiza la dimensión visual de la corporalidad tal como aparece en las estéticas, las narrativas y las imágenes de los films de Luis Ortega, Caja negra y Monobloc. Partiendo de esa exposición de la corporalidad y también de los gestos y los afectos, se busca analizar la conformación de un espacio social íntimo y cotidiano que en la cinematografía de Ortega se hace presente con la figura de los micromundos, para comprender las nuevas formas de socialidad y la nueva expresión de la experiencia social, ahora dada en la materialidad de los cuerpos como formas de vinculación. Así, las relaciones entre cuerpo y vida o entre cuerpo y dolor se conjugan en el artículo como formas de pensar las condiciones de una nueva experiencia social y cultural. Fecha de recepción: 19 de febrero de 2010. Fecha de aceptación: 14 de julio de 2010.

  6. Syntactically Silent Subjects: Luis Muñoz and the Poetry of Ellipsis

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    Judith Nantell

    2012-06-01

    Full Text Available Luis Muñoz (1966 is one of contemporary Spain’s most salient poets. His work has been described as demonstrating a discourse of ellipsis; yet no study has examined in detail his masterful use of syntactic and figurative omission. In fact, even though Muñoz’s published collections to date span two centuries, no single study has been devoted to his decidedly innovative expressivity. His work has been commented on in various panoramic essays considering contemporary poetry published in Spain at this temporal intersection and a number of his poems have been gathered into noteworthy anthologies of this same era. His poetry has been nominated for prestigious awards in Spain and in 2001 Correspondencias ‘Correspondences’ received the fourth Premio Internacional de Poesía del 27 as well as the Premio de Ojo Crítico de Poesía . The present study examines Muñoz’s most recent Querido silencio (2006 ‘Dear Silence’ where ellipsis figures prominently as the poet maximizes and exploits conceptual and linguistic efficiency. In one exemplary poem, “Dejar la poesía” ‘Leave Poetry,’ two syntactically silent subjects engage in an innovative conversation concerning the nature of poetry. At the same time this intriguing dialogue also offers a unique response to the essential question framing this poem and the collection as a whole: Why is poetry an addiction?

  7. Luis G. Urbina, la definición de un género literario

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    Ernesto Emiliano Romero

    2016-01-01

    Full Text Available El artículo es una aproximación crítica a las crónicas del autor mexicano Luis G. Urbina; investigación que encontró su origen en la importancia de la crónica modernista como espacio creativo y reflexivo cuyas características y alcances aún hoy generan un sinnúmero de trabajos críticos. Tanto José Martí como Manuel Gutiérrez Nájera y otros de los autores emblemáticos del modernismo, han sido escrutados y valorados a lo largo de estos años. Sin embargo, Urbina ha permanecido relegado a las historias de la literatura y a las bibliotecas, lo cual sugiere un casi nulo conocimiento de su obra. En este ensayo se analizan algunos de los textos incluidos en su libro Cuentos vividos y crónicas soñadas, publicado en 1915, para contribuir a la revalorización y difusión de su obra a 150 años de su nacimiento.

  8. 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

  9. Espacios Rurales ¿Crisis sistémica o brotes verdes? Entrevista con Luis Camarero.

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    Luis Camarero Rioja

    2013-12-01

    Full Text Available Entrevista a Luis Camarero Rioja es Catedrático de Sociología de la UNED. Experto en sociología rural desde que iniciara en los años 90 su trayectoria como investigador en el Seminario de Estudios Rurales impulsado por Josechu Vicente-Mazariegos (UCM. Recibió el Premio Nacional de Investigaciones Agrarias (1993, MAPA y el Premio de Tesis Doctorales (1993, Colegio de Sociólogos. Ha dirigido distintos proyectos de investigación dedicados especialmente a la visibilización del trabajo femenino en áreas rurales y a la sostenibilidad social en el mundo rural. Autor de numerosas publicaciones de referencia como Del éxodo rural y del éxodo urbano (1993. Madrid: Ministerio de Agricultura, La población rural de España. De los desequilibrios a la sostenibilidad social (2009. Barcelona: La Caixa o “Foreigners, Neighbours, Immigrants: Translocal mobilities in rural areas in Spain” en Translocal Ruralism, obra editada por Hedberg y Carmo (2012. London: Springer.

  10. On the relative contributions of wind vs. animals to seed dispersal of four Sierra Nevada pines.

    Science.gov (United States)

    Vander Wall, Stephen B

    2008-07-01

    Selective pressures that influence the form of seed dispersal syndromes are poorly understood. Morphology of plant propagules is often used to infer the means of dispersal, but morphology can be misleading. Several species of pines, for example, have winged seeds adapted for wind dispersal but owe much of their establishment to scatter-hoarding animals. Here the relative importance of wind vs. animal dispersal is assessed for four species of pines of the eastern Sierra Nevada that have winged seeds but differed in seed size: lodgepole pine (Pinus contorta murrayana, 8 mg); ponderosa pine (Pinus ponderosa ponderosa, 56 mg); Jeffrey pine (Pinus jeffreyi, 160 mg); and sugar pine (Pinus lambertiana, 231 mg). Pre-dispersal seed mortality eliminated much of the ponderosa pine seed crop (66%), but had much less effect on Jeffrey pine (32% of seeds destroyed), lodgepole pine (29%), and sugar pine (7%). When cones opened most filled seeds were dispersed by wind. Animals removed > 99% of wind-dispersed Jeffrey and sugar pine seeds from the ground within 60 days, but animals gathered only 93% of lodgepole pine seeds and 38% of ponderosa pine seeds during the same period. Animals gathered and scatter hoarded radioactively labeled ponderosa, Jeffrey, and sugar pine seeds, making a total of 2103 caches over three years of study. Only three lodgepole pine caches were found. Caches typically contained 1-4 seeds buried 5-20 mm deep, depths suitable for seedling emergence. Although Jeffrey and sugar pine seeds are initially wind dispersed, nearly all seedlings arise from animal caches. Lodgepole pine is almost exclusively wind dispersed, with animals acting as seed predators. Animals treated ponderosa pine in an intermediate fashion. Two-phased dispersal of large, winged pine seeds appears adaptive; initial wind dispersal helps to minimize pre-dispersal seed mortality whereas scatter hoarding by animals places seeds in sites with a higher probability of seedling establishment.

  11. WASH activities at two Ebola treatment units in Sierra Leone.

    Directory of Open Access Journals (Sweden)

    Michaela Mallow

    Full Text Available The 2014 outbreak of Ebola virus disease (EVD in West Africa was the largest in history. Starting in September 2014, International Medical Corps (IMC operated five Ebola treatment units (ETUs in Sierra Leone and Liberia. This paper explores how future infectious disease outbreak facilities in resource-limited settings can be planned, organized, and managed by analyzing data collected on water, sanitation, and hygiene (WASH and infection prevention control (IPC protocols.We conducted a retrospective cohort study by analyzing WASH/IPC activity data routinely recorded on paper forms or white boards at ETUs during the outbreak and later merged into a database from two IMC-run ETUs in Sierra Leone between December 2014 and December 2015.The IMC WASH/IPC database contains data from over 369 days. Our results highlight parameters key to designing and maintaining an ETU. High concentration chlorine solution usage was highly correlated with both daily patient occupancy and high-risk zone staff entries; low concentration chlorine usage was less well explained by these measures. There is high demand for laundering and disinfecting of personal protective equipment (PPE on a daily basis and approximately 1 (0-4 piece of PPE is damaged each day.Lack of standardization in the type and format of data collected at ETUs made constructing the WASH/IPC database difficult. However, the data presented here may help inform humanitarian response operations in future epidemics.

  12. Home birth and hospital birth trends in Bo, Sierra Leone.

    Science.gov (United States)

    Jacobsen, Kathryn H; Abdirahman, Hafsa A; Ansumana, Rashid; Bockarie, Alfred S; Bangura, Umaru; Jimmy, David Henry; Malanoski, Anthony P; Sundufu, Abu James; Stenger, David A

    2012-06-01

    As of April 2010, all maternity care at government healthcare facilities in Sierra Leone is provided at no cost to patients. In late 2010, we conducted a community health census of 18 sections of the city of Bo (selected via randomized cluster sampling from 68 total sections). Among the 3421 women with a history of pregnancy who participated in the study, older women most often reported having a history of both home and hospital deliveries, while younger women showed a preference for hospital births. The proportion of lastborn children delivered at a healthcare facility increased from 71.8% of offspring 10-14 years old to 81.1% of those one to nine years old and 87.3% of infants born after April 2010. These findings suggest that the new maternal healthcare initiative has accelerated an existing trend toward a preference for healthcare facility births, at least in some urban parts of Sierra Leone. © 2012 The Authors Acta Obstetricia et Gynecologica Scandinavica© 2012 Nordic Federation of Societies of Obstetrics and Gynecology.

  13. A Method for Snow Reanalysis: The Sierra Nevada (USA) Example

    Science.gov (United States)

    Girotto, Manuela; Margulis, Steven; Cortes, Gonzalo; Durand, Michael

    2017-01-01

    This work presents a state-of-the art methodology for constructing snow water equivalent (SWE) reanalysis. The method is comprised of two main components: (1) a coupled land surface model and snow depletion curve model, which is used to generate an ensemble of predictions of SWE and snow cover area for a given set of (uncertain) inputs, and (2) a reanalysis step, which updates estimation variables to be consistent with the satellite observed depletion of the fractional snow cover time series. This method was applied over the Sierra Nevada (USA) based on the assimilation of remotely sensed fractional snow covered area data from the Landsat 5-8 record (1985-2016). The verified dataset (based on a comparison with over 9000 station years of in situ data) exhibited mean and root-mean-square errors less than 3 and 13 cm, respectively, and correlation greater than 0.95 compared with in situ SWE observations. The method (fully Bayesian), resolution (daily, 90-meter), temporal extent (31 years), and accuracy provide a unique dataset for investigating snow processes. This presentation illustrates how the reanalysis dataset was used to provide a basic accounting of the stored snowpack water in the Sierra Nevada over the last 31 years and ultimately improve real-time streamflow predictions.

  14. DNA sequences of troglobitic nicoletiid insects support Sierra de El Abra and the Sierra de Guatemala as a single biogeographical area: Implications for Astyanax

    Directory of Open Access Journals (Sweden)

    Luis Espinasa

    2014-03-01

    Full Text Available The blind Mexican tetra fish, Astyanax mexicanus, has become the most influential model for research of cave adapted organisms. Many authors assume that the Sierra de Guatemala populations and the Sierra de El Abra populations are derived from two independent colonizations. This assumption arises in part from biogeography. The 100 m high, 100 m wide Servilleta Canyon of the Boquillas River separates both mountain ranges and is an apparent barrier for troglobite dispersion. Anelpistina quinterensis (Nicoletiidae, Zygentoma, Insecta is one of the most troglomorphic nicoletiid silverfish insects ever described. 16S rRNA sequences support that this species migrated underground to reach both mountain ranges within less than 12,000 years. Furthermore, literature shows a plethora of aquatic and terrestrial cave restricted species that inhabit both mountain ranges. Thus, the Servilleta canyon has not been an effective biological barrier that prevented underground migration of troglobites between the Sierra de Guatemala and the Sierra de El Abra. The Boquillas River has changed its course throughout time. Caves that in the past connected the two Sierras were only recently geologically truncated by the erosion of the new river course. It is likely that, with the geological changes of the area and throughout the 2-8 million years of evolutionary history of cave Astyanax, there have been opportunities to migrate across the Servilleta canyon.

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

    Directory of Open Access Journals (Sweden)

    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

  16. Un bosquejo de la filosofía de Luis Felipe Alarco Larrabure (1913-2005

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    Víctor S. Céspedes Agüero

    2011-05-01

    Full Text Available Nació en Lima, en 1913. Sus padres fueron Gerardo Alarco Calderón y Rosa Mercedes Larraburre y Correa. Durante cinco años, cursó Filosofíaen Alemania con Nicolai Hartmann y Martin Heidegger. De estos estudios de filosofía en universidades alemanas Luis Felipe Alarco evocará:“Mi experiencia del nazismo [...] me hizo comprender que toda forma de dictadura, cualesquiera que sean sus justificaciones –la sinrazónconvertida en furor–, constituye un retroceso en la historia y un menos en la condición humana”1. Al regresar optó el Grado de Bachiller en Humanidades con una tesis sobre El Diálogo Agonal en el Problema de la Inmortalidad (1941 y el Grado de Doctorado en Humanidades con la tesis Lo metafísico en la Filosofía de Nicolai Hartmann (1941. Fue docente en las Facultades de Letras y de Educación. Ejerció la Jefatura del Departamentode Investigaciones Pedagógicas del Instituto Psico-Pedagógico Nacional. Estuvo entre los que fundaron la Sociedad Peruana de Filosofía. Participó en el Congreso Internacional de Filosofía en Lima, que se realizó del 16 al 26 de Julio de 1951. Participó el 2 de agosto de 1994 en el Seminario El marxismo de José Carlos Mariátegui efectuado en el marco del Vº Congreso Nacional de Filosofía realizado en la Universidad de Lima y en el homenaje por el 80 aniversario de Francisco Miró Quesada Cantuarias realizado por la Facultad de Matemática en 1998. Falleció el quince de octubre de 2005.

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

    Directory of Open Access Journals (Sweden)

    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.

  18. La ética y el problema de Dios en Juan Luis Vives (1492-1540

    Directory of Open Access Journals (Sweden)

    Alfonso Maestre Sánchez

    2003-01-01

    Full Text Available In the historical, turbulent and exciting times of the Renaissance Humanism, characterized by a return to classic Antiquity, and the renovation of all cultural manifestations, both philosophy and religion are affected from their very foundations. This scholastic crisis affects in such a way the conscience, of the individuals and the people that it demands a solution immediate although provisional solution, so that we continuing even the business of living. No wonder that among the ruins of tomist morality, some moralists arise, as that of Justus Lipsius (1547-1606, engased in renovating the stoic doctrines of Epicteto (ca. 50 to. of C. -125/138 and Séneca (ca. 4-65, and that of Pierre Gassendi (1592-1655, determined to Christianize Epicuro. For some could be a summarise of the Ethics of the Renaissance others believe that the first Ethics of modern philosophy should be considered to be a product of the Renaissance, even if it does not belong chronologically to it they meam Descartes (1596-1650, Spinoza (1632-1677 and Kant (1724-1804. However according to the opinion of some significant authors, we dont need to go back to Kant to find the authentic Ethics of the Renaissance. Juan Luis Vives published in 1524 a small booklet titled Introductio ad Sapientiam that for its internal ideological structure and its origin senequista and christan leaning occupies a privileged place within modern Ethic, and if we take accourt his content and chronology it can be considered as the Ethics of the Renaissance, at least of the Spanish Renaissance.

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

    Energy Technology Data Exchange (ETDEWEB)

    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.

  20. Geologic studies in the Sierra de Pena Blanca, Chihuahua, Mexico

    Science.gov (United States)

    Reyes-Cortes, Ignacio Alfonso

    The Sierra del Cuervo has been endowed with uranium mineralization, which has attracted many geological studies, and recently the author was part of a team with the goal of selecting a site of a radioactive waste repository. The first part of the work adds to the regional framework of stratigraphy and tectonics of the area. It includes the idea of a pull apart basin development, which justifies the local great thickness of the Cuervo Formation. It includes the regional structural frame work and the composite stratigraphic column of the Chihuahua Trough and the equivalent Cretaceous Mexican Sea. The general geologic features of the NE part of the Sierra del Cuervo are described, which include the folded ignimbrites and limestones in that area; the irregular large thicknesses of the Cuervo Formation; and the western vergence of the main folding within the area. Sanidine phenocrystals gave ages of 54.2 Ma and 51.8 Ma ± 2.3 Ma. This is the first time these dates have been reported in print. This age indicates a time before the folded structures which outcrop in the area, and 44 Ma is a date after the Cuervo Formation was folded. The Hidalgoan orogeny cycle affected the rocks between this lapse of time. Since then the area has been partially affected by three tensional overlapped stages, which resulted in the actual Basin and Range physiography. The jarosite related to the tectonic activity mineralization has been dated by the Ar-Ar method and yields an age of 9.8 Ma. This is the first report of a date of mineralization timing at Pena Blanca Uranium District in the Sierra del Cuervo. These are some of the frame work features that justify the allocation of a radioactive waste repository in the Sierra del Cuervo. An alluvial fan system within the Boquilla Colorada microbasin was selected as the best target for more detailed site assessment. The study also included the measurement of the alluvium thicknesses by geoelectric soundings; studies of petrography and weathered

  1. Uranium mining in Sierra Pintada: knowledge, epistemic communities and development

    International Nuclear Information System (INIS)

    Martinez Demarco, S. R.

    2011-01-01

    This paper analyses the conflict triggered by the National Atomic Energy Commission of Argentina (CNEA) proposing to re-open the Mining Complex of Sierra Pintada, in San Rafael, Province of Mendoza. Since 2004 when the Commission submitted the first report to the Ministry of Public Works and Environment of Mendoza to obtain the necessary permission to restart the works in the mine, several protests have taken place and many legal measures were taken in order to stop any resuming attempts. This study argues that, although CNEA has been an epistemic community capable of applying their policy proposals in the nuclear field, their technical knowledge is currently not sufficient to design a policy, and moreover, to hold that they are working for local and sustainable development. Only 'puzzling' 'with actors' paradigms and knowledge is possible to fit together their demands and achieve a public policy, or solution, for this problem. (author) [es

  2. Development of a Pediatric Ebola Predictive Score, Sierra Leone1

    Science.gov (United States)

    Wing, Kevin; Naveed, Asad; Gbessay, Musa; Ross, J.C.G.; Checchi, Francesco; Youkee, Daniel; Jalloh, Mohamed Boie; Baion, David E.; Mustapha, Ayeshatu; Jah, Hawanatu; Lako, Sandra; Oza, Shefali; Boufkhed, Sabah; Feury, Reynold; Bielicki, Julia; Williamson, Elizabeth; Gibb, Diana M.; Klein, Nigel; Sahr, Foday; Yeung, Shunmay

    2018-01-01

    We compared children who were positive for Ebola virus disease (EVD) with those who were negative to derive a pediatric EVD predictor (PEP) score. We collected data on all children <13 years of age admitted to 11 Ebola holding units in Sierra Leone during August 2014–March 2015 and performed multivariable logistic regression. Among 1,054 children, 309 (29%) were EVD positive and 697 (66%) EVD negative, with 48 (5%) missing. Contact history, conjunctivitis, and age were the strongest positive predictors for EVD. The PEP score had an area under receiver operating characteristics curve of 0.80. A PEP score of 7/10 was 92% specific and 44% sensitive; 3/10 was 30% specific, 94% sensitive. The PEP score could correctly classify 79%–90% of children and could be used to facilitate triage into risk categories, depending on the sensitivity or specificity required. PMID:29350145

  3. Ebola Virus Disease in Children, Sierra Leone, 2014–2015

    Science.gov (United States)

    Naveed, Asad; Wing, Kevin; Gbessay, Musa; Ross, J.C.G.; Checchi, Francesco; Youkee, Daniel; Jalloh, Mohammed Boie; Baion, David; Mustapha, Ayeshatu; Jah, Hawanatu; Lako, Sandra; Oza, Shefali; Boufkhed, Sabah; Feury, Reynold; Bielicki, Julia A.; Gibb, Diana M.; Klein, Nigel; Sahr, Foday; Yeung, Shunmay

    2016-01-01

    Little is known about potentially modifiable factors in Ebola virus disease in children. We undertook a retrospective cohort study of children <13 years old admitted to 11 Ebola holding units in the Western Area, Sierra Leone, during 2014–2015 to identify factors affecting outcome. Primary outcome was death or discharge after transfer to Ebola treatment centers. All 309 Ebola virus–positive children 2 days–12 years old were included; outcomes were available for 282 (91%). Case-fatality was 57%, and 55% of deaths occurred in Ebola holding units. Blood test results showed hypoglycemia and hepatic/renal dysfunction. Death occurred swiftly (median 3 days after admission) and was associated with younger age and diarrhea. Despite triangulation of information from multiple sources, data availability was limited, and we identified no modifiable factors substantially affecting death. In future Ebola virus disease epidemics, robust, rapid data collection is vital to determine effectiveness of interventions for children. PMID:27649367

  4. Element Verification and Comparison in Sierra/Solid Mechanics Problems

    Energy Technology Data Exchange (ETDEWEB)

    Ohashi, Yuki; Roth, William

    2016-05-01

    The goal of this project was to study the effects of element selection on the Sierra/SM solutions to five common solid mechanics problems. A total of nine element formulations were used for each problem. The models were run multiple times with varying spatial and temporal discretization in order to ensure convergence. The first four problems have been compared to analytical solutions, and all numerical results were found to be sufficiently accurate. The penetration problem was found to have a high mesh dependence in terms of element type, mesh discretization, and meshing scheme. Also, the time to solution is shown for each problem in order to facilitate element selection when computer resources are limited.

  5. Rock-Ice Feature Inventory for the Sierra Nevada, California, USA, Version 1

    Data.gov (United States)

    National Aeronautics and Space Administration — The Sierra Nevada is a tectonic uplift mountain range with a gradual gain in elevation on the west side and a steep escarpment on the east. Most of the mapped...

  6. California; Northern Sierra Air Quality Management District; Approval of Air Plan Revisions; Wood Burning Devices

    Science.gov (United States)

    EPA is taking final action to approve a revision to the Northern Sierra Air Quality Management District (NSAQMD) portion of the California SIP concerning emissions of particulate matter (PM) from wood burning devices.

  7. SIERRA Low Mach Module: Fuego Theory Manual Version 4.44

    Energy Technology Data Exchange (ETDEWEB)

    Sierra Thermal/Fluid Team

    2017-04-01

    The SIERRA Low Mach Module: Fuego along with the SIERRA Participating Media Radiation Module: Syrinx, henceforth referred to as Fuego and Syrinx, respectively, are the key elements of the ASCI fire environment simulation project. The fire environment simulation project is directed at characterizing both open large-scale pool fires and building enclosure fires. Fuego represents the turbulent, buoyantly-driven incompressible flow, heat transfer, mass transfer, combustion, soot, and absorption coefficient model portion of the simulation software. Syrinx represents the participating-media thermal radiation mechanics. This project is an integral part of the SIERRA multi-mechanics software development project. Fuego depends heavily upon the core architecture developments provided by SIERRA for massively parallel computing, solution adaptivity, and mechanics coupling on unstructured grids.

  8. SIERRA Low Mach Module: Fuego Theory Manual Version 4.46.

    Energy Technology Data Exchange (ETDEWEB)

    Sierra Thermal/Fluid Team

    2017-09-01

    The SIERRA Low Mach Module: Fuego along with the SIERRA Participating Media Radiation Module: Syrinx, henceforth referred to as Fuego and Syrinx, respectively, are the key elements of the ASCI fire environment simulation project. The fire environment simulation project is directed at characterizing both open large-scale pool fires and building enclosure fires. Fuego represents the turbulent, buoyantly-driven incompressible flow, heat transfer, mass transfer, combustion, soot, and absorption coefficient model portion of the simulation software. Syrinx represents the participating-media thermal radiation mechanics. This project is an integral part of the SIERRA multi-mechanics software development project. Fuego depends heavily upon the core architecture developments provided by SIERRA for massively parallel computing, solution adaptivity, and mechanics coupling on unstructured grids.

  9. SIERRA Low Mach Module: Fuego User Manual Version 4.44

    Energy Technology Data Exchange (ETDEWEB)

    Sierra Thermal/Fluid Team

    2017-04-01

    The SIERRA Low Mach Module: Fuego along with the SIERRA Participating Media Radiation Module: Syrinx, henceforth referred to as Fuego and Syrinx, respectively, are the key elements of the ASCI fire environment simulation project. The fire environment simulation project is directed at characterizing both open large-scale pool fires and building enclosure fires. Fuego represents the turbulent, buoyantly-driven incompressible flow, heat transfer, mass transfer, combustion, soot, and absorption coefficient model portion of the simulation software. Syrinx represents the participating-media thermal radiation mechanics. This project is an integral part of the SIERRA multi-mechanics software development project. Fuego depends heavily upon the core architecture developments provided by SIERRA for massively parallel computing, solution adaptivity, and mechanics coupling on unstructured grids.

  10. SIERRA Low Mach Module: Fuego User Manual Version 4.46.

    Energy Technology Data Exchange (ETDEWEB)

    Sierra Thermal/Fluid Team

    2017-09-01

    The SIERRA Low Mach Module: Fuego along with the SIERRA Participating Media Radiation Module: Syrinx, henceforth referred to as Fuego and Syrinx, respectively, are the key elements of the ASCI fire environment simulation project. The fire environment simulation project is directed at characterizing both open large-scale pool fires and building enclosure fires. Fuego represents the turbulent, buoyantly-driven incompressible flow, heat transfer, mass transfer, combustion, soot, and absorption coefficient model portion of the simulation software. Syrinx represents the participating-media thermal radiation mechanics. This project is an integral part of the SIERRA multi-mechanics software development project. Fuego depends heavily upon the core architecture developments provided by SIERRA for massively parallel computing, solution adaptivity, and mechanics coupling on unstructured grids.

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

    Directory of Open Access Journals (Sweden)

    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

  12. Discovery of the Sierra Pintada uranium district, Mendoza Province, Argentina

    International Nuclear Information System (INIS)

    Rodrigo, F.; Belluco, A.E.

    1981-01-01

    Since 1956, uranium-bearing minerals have been known to exist in Sierra Pintada, Mendoza Province, Argentina. Based on paragenetic considerations, a first radiometric prospection was carried out, leading to the discovery of two groups of anomalies (Puesto Agua del Toro and Cuesta de los Terneros), such as vein-type deposits, with uraninite and 'yellow minerals' and one sandstone-type deposit (Puesto La Josefa), related to sediments with carbon trash. Some recent geological research and surveys in the area, and a reduced drilling programme carried out on selected anomalies, led to reinterpretation of the potential of the area. Furthermore, and as a result of an airborne radiometric prospection performed in mid-1968, numerous anomalies have been discovered. The main constellation of anomalies, along the flanks of the El Tigre Brachyanticline, occurs in sandstones of Permian age. Explored by 80 000 m of drilling, they have shown the existence of several peneconcordant lens-shaped ore bodies of economic size, with uranophane on the surface and prevailing uraninite and some brannerite, coffinite and davidite below the water table. Reserves exceed 20 000 tonnes of U 3 O 8 . A new regional programme with a 4-km drill-grid initiated in 1978 led to the discovery of new ore bodies which are at present being evaluated. The alternatives and discontinuities during the development of the district, the prospecting and exploration techniques employed, and the results achieved in the different stages of the operation are discussed in detail. This case history attempts to illustrate the developing philosophy which was successfully applied in Sierra Pintada, with emphasis on the following points: (a) the need for adequate geological knowledge of the area; (b) the advantage of a massive survey (in this case, air survey); (c) the necessity for exploration (drilling) in order to define the anomalies and make their evaluation possible; and (d) the convenience of extending exploration

  13. Los recursos humanos en un espacio natural protegido: Sierra Nevada

    Directory of Open Access Journals (Sweden)

    Ma. Enriqueta Cózar

    2000-01-01

    Full Text Available Sierra Nevada, como todas las áreas de montaña españolas y gran parte del territorio interior andaluz, ha experimentado durante el siglo XX un considerable retroceso demográfico. La población con la que llega al umbral del siglo XXI es una cuarta parte más pequeña que la registrada en 1900 y un tercio inferior a la de 1950. Diversos y complejos factores, tanto internos como externos al área de montaña, de carácter más económico que demográfico, fueron los desencadenantes de una fuerte emigración. La gran pérdida de población ha originado cambios trascendentales en la demografía y en la actividad económica de Sierra Nevada. En la actualidad, la población de este espacio protegido se caracteriza por una desequilibrada distribución en el territorio, un escaso crecimiento natural, un acelerado envejecimiento y una actividad mayoritariamente terciaria. La declaración, en Julio de 1989, como espacio natural protegido bajo la figura de Parque Natural, y la más reciente de Parque Nacional, apenas ha modificado la inercia demográfica regresiva de la mayor parte de sus municipios; tan sólo se ha podido apreciar una cierta tendencia a la estabilización demográfica de la población total del macizo

  14. Physiochemical characterization of insoluble residues in California Sierra Nevada snow

    Science.gov (United States)

    Creamean, Jessie; Axson, Jessica; Bondy, Amy; Craig, Rebecca; May, Nathaniel; Shen, Hongru; Weber, Michael; Warner, Katy; Pratt, Kerri; Ault, Andrew

    2015-04-01

    The effects atmospheric aerosols have on cloud particle formation are dependent on both the aerosol physical and chemical characteristics. For instance, larger, irregular-shaped mineral dusts efficiently form cloud ice crystals, enhancing precipitation, whereas small, spherical pollution aerosols have the potential to form small cloud droplets that delay the autoconversion of cloudwater to precipitation. Thus, it is important to understand the physiochemical properties and sources of aerosols that influence cloud and precipitation formation. We present an in-depth analysis of the size, chemistry, and sources of soluble and insoluble residues found in snow collected at three locations in the California Sierra Nevada Mountains during the 2012/2013 winter season. For all sites, February snow samples contained high concentrations of regional pollutants such as ammonium nitrate and biomass burning species, while March snow samples were influenced by mineral dust. The snow at the lower elevation sites in closer proximity to the Central Valley of California were heavily influenced by agricultural and industrial emissions, whereas the highest elevation site was exposed to a mixture of Central Valley pollutants in addition to long-range transported dust from Asia and Africa. Further, air masses likely containing transported dust typically traveled over cloud top heights at the low elevation sites, but were incorporated into the cold (-28°C, on average) cloud tops more often at the highest elevation site, particularly in March, which we hypothesize led to enhanced ice crystal formation and thus the observation of dust in the snow collected at the ground. Overall, understanding the spatial and temporal dependence of aerosol sources is important for remote mountainous regions such as the Sierra Nevada where snowpack provides a steady, vital supply of water.

  15. Knowledge of breast cancer in women in Sierra Leone

    Directory of Open Access Journals (Sweden)

    JHEE Shepherd

    2006-09-01

    Full Text Available Breast cancer has been described as one of the life-threatening diseases affecting women and is a major problem in women’s health issues. The unrecorded number of cases of breast lumps and breast cancer observed in women in Sierra Leone prompted the researcher to organize a “Breast Week” during which 1 200 women were educated on breast cancer and the importance of breast health. This research is a follow up of the “Breast Week” which was organized in Freetown, Sierra Leone The specific objective of this study was to assess whether the knowledge and teachings given to the women who participated in this project was fully understood. A sample size of 120 women (10% who participated in the “Breast Week” was obtained through systematic sampling. A quantitative approach was adopted and a structured interview schedule guided the data collection process. The data were processed through use of SPSS and Microsoft Excel. Texts from open ended questions were categorized and frequency counts were applied to the data. It was found that the majority (96.6% of the women had some knowledge of breast cancer. They linked breast cancer to the signs and symptoms associated with it and were able to describe the disease as one that kills women if not promptly detected and/or treated appropriately. Findings indicate that the majority of the women are aware of the dangers of the disease and had knowledge of someone who had died of breast cancer (59.2%. An assessment of the effectiveness of knowledge on breast cancer showed that these women could identify breast cancer as a disease that affects women and may cause death if not detected on time.

  16. Shallow crustal structure of eastern-central Trans-Mexican Volcanic Belt.

    Science.gov (United States)

    Campos-Enriquez, J. O.; Ramón, V. M.; Lermo-Samaniego, J.

    2015-12-01

    Central-eastern Trans-Mexican Volcanic Belt (TMVB) is featured by large basins (i.e., Toluca, Mexico, Puebla-Tlaxcala, Libres-Oriental). It has been supposed that major crustal faults limit these basins. Sierra de Las Cruces range separates the Toluca and Mexico basins. The Sierra Nevada range separates Mexico basin from the Puebla-Tlaxcala basin. Based in gravity and seismic data we inferred the Toluca basin is constituted by the Ixtlahuaca sub-basin, to the north, and the Toluca sub-basin to the south, which are separated by a relative structural high. The Toluca depression is more symmetric and bounded by sub-vertical faults. In particular its eastern master fault controlled the emplacement of Sierra de Las Cruces range. Easternmost Acambay graben constitutes the northern and deepest part of the Ixtlahuaca depression. The Toluca-Ixtlahuaca basin is inside the Taxco-San Miguel de Allende fault system, and limited to the west by the Guerrero terrane which continues beneath the TMVB up to the Acambay graben. Mexico basin basement occupies an intermediate position and featured by a relative structural high to the north-east, as established by previous studies. This relative structural high is limited to the west by the north-south Mixhuca trough, while to the south it is bounded by the east-west Copilco-Xochimilco-Chalco sub-basin. The Puebla-Tlaxcala basin basement is the shallowest of these 3 tectonic depressions. In general, features (i.e., depth) and relationship between these basins, from west to east, are controlled by the regional behavior of the Sierra Madre Oriental fold and thrust belt basement (i.e., Oaxaca Complex?). This study indicates that an active east-west regional fault system limits to the south the TMVB (from the Nevado de Toluca volcano through the Popocatepetl volcano and eastward along southern Puebla-Tlaxcala basin). The Tenango and La Pera fault systems constituting the western part of this regional fault system coincide with northern

  17. Anfibios y reptiles de la sierra de Cuatro Venados, Oaxaca, México

    OpenAIRE

    Martín-Regalado, N.; Lavariega, M. C.; Gómez-Ugalde, R. M.; Rodríguez-Pérez, C.

    2016-01-01

    Amphibians and reptiles of the Sierra de Cuatro Venados, Oaxaca, Mexico We surveyed amphibian and reptile communities in temperate forest in the Sierra de Cuatro Venados to increase knowledge of the Oaxacan herpetofauna. We obtained 193 visual and 106 voucher records during 38 days of fieldwork. During the study, we recorded 36 of the 40 species predicted to occur in this mountain range: nine amphibians and 27 reptiles, five of which represent new records at the regional scale. Pine-o...

  18. Topographic Evolution of the Sierra Nevada Resolved by Inversion of Low-Temperature Thermochronology

    Science.gov (United States)

    McPhillips, D. F.; Brandon, M. T.

    2011-12-01

    At present, there are two competing ideas for the topographic evolution of the Sierra Nevada Range. One idea is that the Sierra Nevada was formed as a monocline in the Cretaceous, marking the transition from the Great Valley forearc basin to the west, and a high Nevadaplano plateau to the east, similar to the west flank of the modern Altiplano of the Andes. Both the thermochronologic signature of local relief and the stable isotopic evidence of a topographic rain shadow support this hypothesis. However, a suite of geomorphic observations suggests that the Sierra gained a large fraction of its present elevation as recently as the Pliocene. This recent surface uplift could have been driven by convective removal of in the lower part of the lithosphere and/or by changes in dynamic topography associated with deep subduction of the Farallon plate. Here we present the first comprehensive analysis of low-temperature thermochronology in the Sierra Nevada, which provides a definitive solution, which indicates that both ideas are likely correct. Our analysis is distinguished by three new factors: The first is that we allow for separate evolutions for the local relief and the long-wavelength topography. Second, we use Al-in-Hb paleobarometry to constrain the initial depth of emplacement for the Sierra Nevada plutons. Third, our analysis is tied to a sea-level reference by using the paleo-bathymetric record of the Great Valley basin, where it on-laps the Sierra Nevada batholith. According to our analysis, westward tilting of the Sierra accounts for 2 km of uplift since 20 Ma. Topographic relief increased by a factor of 2. These findings suggest that the Sierra Nevada lost elevation through most of the Tertiary but regained much of its initial elevation following the onset of surface uplift in the Miocene.

  19. Rebuilding after emergency: Revamping agricultural research in Sierra Leone after civil war

    OpenAIRE

    Asenso-Okyere, Kwadwo; Workneh, Sindu; Rhodes, Edward; Sutherland, John

    2009-01-01

    "The civil war in Sierra Leone, caused by a mix of political, social, and economic factors, had a huge impact on the overall economy in general and on the performance of the agricultural sector in particular. The agricultural research system of Sierra Leone was severely affected by the civil war. Research infrastructure was destroyed, laboratories were damaged and abandoned, and well-trained researchers and scientists fled from the country. With the cessation of hostilities in 2002, the gover...

  20. SierraDNA – Demonstrating the Usefulness of Direct ILS Database Access

    Directory of Open Access Journals (Sweden)

    James Padgett

    2015-10-01

    Full Text Available Innovative Interface’s Sierra(™ Integrated Library System (ILS brings with it a Database Navigator Application (SierraDNA - in layman's terms SierraDNA gives Sierra sites read access to their ILS database. Unlike the closed use cases produced by vendor supplied APIs, which restrict Libraries to limited development opportunities, SierraDNA enables sites to publish their own APIs and scripts based upon custom SQL code to meet their own needs and those of their users and processes. In this article we give examples showing how SierraDNA can be utilized to improve Library services. We highlight three example use cases which have benefited our users, enhanced online security and improved our back office processes. In the first use case we employ user access data from our electronic resources proxy server (WAM to detect hacked user accounts. Three scripts are used in conjunction to flag user accounts which are being hijacked to systematically steal content from our electronic resource provider’s websites. In the second we utilize the reading histories of our users to augment our search experience with an Amazon style “People who borrowed this book also borrowed…these books” feature. Two scripts are used together to determine which other items were borrowed by borrowers of the item currently of interest. And lastly, we use item holds data to improve our acquisitions workflow through an automated demand based ordering process. Our explanation and SQL code should be of direct use for adoption or as examples for other Sierra customers willing to exploit their ILS data in similar ways, but the principles may also be useful to non-Sierra sites that also wish to enhancement security, user services or improve back office processes.

  1. 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.

  2. 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).

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

    Science.gov (United States)

    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

  4. José Teruel, Los años norteamericanos de Luis Cernuda: una singular propuesta de lectura

    Directory of Open Access Journals (Sweden)

    Dana Guisasola

    2014-07-01

    Full Text Available La presente reseña se aboca al reciente libro de José Teruel, Los años norteamericanos de Luis Cernuda. El crítico revisa un abundante material bibliográfico y da cuenta de  los pormenores de la vida y obra del poeta español entre 1947 -año en el que el poeta llega a Nueva Inglaterra- y 1963, año de su muerte. El libro ha sido galardonado con el Premio de Investigación Literaria Gerardo Diego en 2013.

  5. Ciudades invisibles. Tijuana en la obra de Federico Campbell, Luis Humberto Crosthwaite, Francisco Morales y Heriberto Yépez

    Directory of Open Access Journals (Sweden)

    Diana Palaversich

    2014-06-01

    This essay employs the concepts of “the haunted place” (Michel de Certeau and “the sense of place” (Kent Ryden to examine the representation of the US-Mexico border in the works of Federico Campbell, Luis Humberto Crosthwaite, Francisco Morales and Heriberto Yépez. While Campbell, Crosthwaite, and Morales represent Tijuana as a place imbued with personal and collective history, Yépez, in his most recent novel, Al otro lado, offers an apocalyptic vision of this border city, defined by narcoviolence, illegal immigration, and militarization.

  6. A forgotten chapter of Mexican technology and science: Luis Gutiérrez Villegas and poliomyelitis in Mexico.

    Science.gov (United States)

    Velázquez-Arellano, Antonio

    Two different types of vaccines were developed against poliomyelitis: The Salk vaccine using inactivated virus and the Sabin one, that was used later, after investigations assured its safety. The first one was made in Mexico with its own resources since 1957 thanks to the efforts of young researchers and technicians coordinated by Luis Gutiérrez-Villegas, M.D., who was a Clinical Pathologist, University Professor and President of the Mexican National Academy of Mexico. Copyright: © 2017 SecretarÍa de Salud.

  7. 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

  8. 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...

  9. 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.

  10. Ecología de la fauna silvestre de la sierra nevada y la Sierra del Ajusco

    Directory of Open Access Journals (Sweden)

    D. Granados Sánchez

    2004-01-01

    Full Text Available Se presenta un estudio sobre la fauna silvestre de la Sierra del Ajusco y la Sierra Nevada, localizadas dentro de la Faja Volcánica Transmexicana (FVT, en la porción oriental del límite meridional de la Cuenca de México. La enorme riqueza biológica de esta zona que rodea la zona metropolitana de la ciudad de México, uno de los mayores complejos urbanos del mundo, ha sobrevivido durante décadas al impacto de la urbanización de las áreas forestales, explotación de recursos naturales, contaminación, cacería, incendios y pastoreo. A pesar de esto, se desconocen muchos de los factores que regulan la dinámica de los ecosistemas en esta región. Con relación a la fauna silvestre la carencia de información es mucho más evidente, aspectos elementales como la diversidad de especies, las interacciones ecológicas, la función de los organismos en el ecosistema, las condiciones de estrés a que están sometidos, han sido poco explorados. En esta investigación se recurrió a observaciones de campo y a la consulta de diferentes fuentes bibliográficas para estimar la riqueza de especies de mamíferos, aves, reptiles y anfibios; las relaciones ecológicas entre los mismos y las consecuencias de la modificación de su hábitat producto de las actividades humanas.

  11. Sr and Nd isotope geochemistry and tectonics during subduction and rifting in Sierra Santa Ursula, Sonora, Northwestern Mexico

    International Nuclear Information System (INIS)

    Mora-Klepeis, G.

    2000-01-01

    The western margin of North America was affected by a convergent plate boundary from the Cretaceous through the Early Tertiary. Volcanic rocks produced by subduction-related arc magmatism in northwestern Mexico are concentrated in two northwest-trending belts subparallel to the continental margin. One of these is the Sierra Madre Occidental, where mid-Tertiary magmatism consisted mostly of calc-alkaline rhyolitic ignimbrite and minor andesite produced between ∼ 46 and 28 Ma (McDowell et al., 1990). The second (younger) northwest-trending belt is located along the eastern margin of the Baja California Peninsula and in the Gulf of California region of mainland Mexico. This belt is composed mostly of andesite, but includes some basalt and dacite whose ages range from about 24 to 11 Ma (Hausback, 1984). A transition to rifting began after a mid-Tertiary cessation of subduction, eventually creating the Gulf of California extensional province. Four markedly different magma types comprising mainly tholeiitic and alkalic rocks and minor calc-alkaline and peralkaline rocks were erupted throughout the last 13 Ma and record the history of rifting of the Gulf of California (Sawlan, 1991). The aim of the present paper is to distinguish the nature of the 24-8.5 Ma magmatism emplaced on the eastern side of the Gulf of California in the state of Sonora, by the use of stratigraphic, geochemical and isotopic data. Preliminary Sr and Nd results show that three groups of magmas are present in the area suggesting a heterogeneous source. This can be interpreted as the result of magmas being erupted at different stages of subduction and rifting during the tectonic evolution of this part on North America

  12. Noteworthy records of two species of mammals in the Sierra Madre de Oaxaca, Mexico Registros notables de dos especies de mamíferos de la Sierra Madre de Oaxaca, México

    OpenAIRE

    Miguel Briones-Salas; María D. Luna-Krauletz; Ariadna Marín-Sánchez; Jorge Servín

    2006-01-01

    We conducted mammal surveys in the Sierra Madre de Oaxaca (Sierra Norte) in Oaxaca, Mexico, and recorded the occurrence of two conspicuous mammal species: the spider monkey (Ateles geoffroyi vellerosus) and the coyote (Canis latrans cagottis). Spider monkeys has not been previously recorded in the Sierra Madre de Oaxaca, and coyotes have not been previously observed in Mexico at elevations as high as the present one (3 200 mas1) in the Sierra Madre de Oaxaca.Se efectuaron colectas de mamífero...

  13. Luis Felipe Fajardo (1927-2013. Su vida y su obra

    Directory of Open Access Journals (Sweden)

    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.

  14. 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

  15. Juegos de palabras y música en El Cortesano de Luis Milán

    Directory of Open Access Journals (Sweden)

    Alfonso Colella

    2015-12-01

    Full Text Available Este artículo analiza cómo, en El Cortesano, la música y la actuación musical se ven fuertemente afectadas por el carácter burlesco e ingenioso de todos los personajes que frecuentan las reuniones de Fernando de Aragón y de la reina Germana de Foix. Por lo tanto, el músico Milán, para cumplir con todas las expectativas de este mundo del entretenimiento y del juego, debe basarse necesariamente en una serie de opciones interpretativas que permitan actuaciones rápidas en función de las demandas de su público. Lo que emerge es una imagen del músico y de la música diferente de lo que se esperaría normalmente. En una sociedad de este tipo, no cuenta la música entendida en su estética y aspectos técnicos, sino la capacidad de gestionar las apariencias y someterse a las pruebas y los mandatos impuestos por los rituales del juego cortesano. Tenemos muchos ejemplos en que Milán se muestra con pasividad y sumisión. Pero es normal, porque esto entra en los códigos de la vida de la corte. This article takes into consideration El Cortesano (1561 by Luis Milán: in this text the musical performance is strongly influenced by the playful attitudes of the individuals who attended the court meetings of Fernando de Aragón and Germana de Foix. Therefore, the musician has to keep in mind every expectation of courtly entertainment and gaming, and morevoer he must open his interpretative options to meet also the demands of the public. What emerges is a picture of the musician and his music that is different from what one would expect in another social context. In such aristocratic society as the Duke of Calabria, music was not understood only in terms of its aesthetic values and technical aspects, but it also required that the player accepted the rituals of the courtly game.

  16. 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.

  17. The Eastern Partnership

    DEFF Research Database (Denmark)

    Nielsen, Kristian L.; Vilson, Maili

    2014-01-01

    When the EU launched the Eastern Partnership (EaP) in 2009, it did so with much rhetoric about projecting its soft power into Eastern Europe. Yet today, the EU's soft power project seems to have stalled, with developments in the region being less than favourable. This article argues that the EaP...... essentially replicated the main weaknesses of the European Neighbourhood Policy, by offering too little incentive and support to the partners, rendering both conditionality and soft power ineffective as tools for milieu shaping. In promoting the EaP as a policy of soft power, the EU has once again forgotten...

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

    Science.gov (United States)

    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.

  19. 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.

  20. South African Ebola diagnostic response in Sierra Leone: A modular high biosafety field laboratory.

    Directory of Open Access Journals (Sweden)

    Janusz T Paweska

    2017-06-01

    Full Text Available In August 2014, the National Institute for Communicable Diseases (NICD in South Africa established a modular high-biosafety field Ebola diagnostic laboratory (SA FEDL near Freetown, Sierra Leone in response to the rapidly increasing number of Ebola virus disease (EVD cases.The SA FEDL operated in the Western Area of Sierra Leone, which remained a "hotspot" of the EVD epidemic for months. The FEDL was the only diagnostic capacity available to respond to the overwhelming demand for rapid EVD laboratory diagnosis for several weeks in the initial stages of the EVD crisis in the capital of Sierra Leone. Furthermore, the NICD set out to establish local capacity amongst Sierra Leonean nationals in all aspects of the FEDL functions from the outset. This led to the successful hand-over of the FEDL to the Sierra Leone Ministry of Health and Sanitation in March 2015. Between 25 August 2014 and 22 June 2016, the laboratory tested 11,250 specimens mostly from the Western Urban and Western Rural regions of Sierra Leone, of which 2,379 (21.14% tested positive for Ebola virus RNA.The bio-safety standards and the portability of the SA FEDL, offered a cost-effective and practical alternative for the rapid deployment of a field-operated high biocontainment facility. The SA FEDL teams demonstrated that it is highly beneficial to train the national staff in the course of formidable disease outbreak and accomplished their full integration into all operational and diagnostic aspects of the laboratory. This initiative contributed to the international efforts in bringing the EVD outbreak under control in Sierra Leone, as well as capacitating local African scientists and technologists to respond to diagnostic needs that might be required in future outbreaks of highly contagious pathogens.

  1. South African Ebola diagnostic response in Sierra Leone: A modular high biosafety field laboratory.

    Science.gov (United States)

    Paweska, Janusz T; Jansen van Vuren, Petrus; Meier, Gunther H; le Roux, Chantel; Conteh, Ousman S; Kemp, Alan; Fourie, Cardia; Naidoo, Prabha; Naicker, Serisha; Ohaebosim, Phumza; Storm, Nadia; Hellferscee, Orienka; Ming Sun, Lisa K; Mogodi, Busisiwe; Prabdial-Sing, Nishi; du Plessis, Desiree; Greyling, Deidre; Loubser, Shayne; Goosen, Mark; McCulloch, Stewart D; Scott, Terence P; Moerdyk, Alexandra; Dlamini, Wesley; Konneh, Kelfala; Kamara, Idrissa L; Sowa, Dauda; Sorie, Samuel; Kargbo, Brima; Madhi, Shabir A

    2017-06-01

    In August 2014, the National Institute for Communicable Diseases (NICD) in South Africa established a modular high-biosafety field Ebola diagnostic laboratory (SA FEDL) near Freetown, Sierra Leone in response to the rapidly increasing number of Ebola virus disease (EVD) cases. The SA FEDL operated in the Western Area of Sierra Leone, which remained a "hotspot" of the EVD epidemic for months. The FEDL was the only diagnostic capacity available to respond to the overwhelming demand for rapid EVD laboratory diagnosis for several weeks in the initial stages of the EVD crisis in the capital of Sierra Leone. Furthermore, the NICD set out to establish local capacity amongst Sierra Leonean nationals in all aspects of the FEDL functions from the outset. This led to the successful hand-over of the FEDL to the Sierra Leone Ministry of Health and Sanitation in March 2015. Between 25 August 2014 and 22 June 2016, the laboratory tested 11,250 specimens mostly from the Western Urban and Western Rural regions of Sierra Leone, of which 2,379 (21.14%) tested positive for Ebola virus RNA. The bio-safety standards and the portability of the SA FEDL, offered a cost-effective and practical alternative for the rapid deployment of a field-operated high biocontainment facility. The SA FEDL teams demonstrated that it is highly beneficial to train the national staff in the course of formidable disease outbreak and accomplished their full integration into all operational and diagnostic aspects of the laboratory. This initiative contributed to the international efforts in bringing the EVD outbreak under control in Sierra Leone, as well as capacitating local African scientists and technologists to respond to diagnostic needs that might be required in future outbreaks of highly contagious pathogens.

  2. A biomass energy flow chart for Sierra Leone

    International Nuclear Information System (INIS)

    Amoo-Gottfried, K.; Hall, D.O.

    1999-01-01

    Terrestrial above-ground biomass production and utilisation in Sierra Leone was analysed for the years 1984/5 to 1990/1. The total production of biomass energy was estimated at an annual average of 131 PJ (39% from agriculture, 51% from forestry and 10% from livestock). Of the 117 PJ produced from agricultural and forestry operations, 37 PJ was harvested as firewood and burnt (10.9 GJ or 0.72 t wood per capita per year, supplying 80% of the country's energy), 12 PJ was harvested for food, 66 PJ was unutilised crop and forestry residues, 3 PJ was harvested crop residues for use directly as fuel, and 2 PJ was harvested and used for industrial purposes and not for fuel. Livestock produced wastes with an energy content of 13 PJ of which only 0.1 PJ was collected and used for fuel. Thus 54 PJ (41%) of the 131 PJ of biomass energy produced annually was actually utilised while 49 PJ remained as unused agricultural residues and dung, and a further 27 PJ was unused forestry residues. The total amount of biomass (fuelwood, residues and dung) used directly to provide energy, mostly in households, was estimated at 40 PJ (11.8 GJ per capita per year of 0.79 t fuelwood equivalent). Direct biomass energy utilisation in agroindustry (0.4 PJ) was negligible in comparison. Two assessments of Sierra Leone's biomass standing stock and MAI (mean annual increment) were examined in order to assess the sustainability of various biomass use scenarios. Large differences were found between the MAI of the two assessments, making it difficult to predict sustainability of biomass production and use. The estimation of total standing stock varied between 227 and 366 Mt and the estimation of MAI varied between 15 and 70 Mt. Analysis of the availability and use of the biomass resource is crucial if biomass energy is to be used on a sustainable basis. A software package has been developed and is available to draft biomass flow charts but further work is needed to incorporate social and economic

  3. Monitoring lichens diversity and climatic change in Sierra Nevada (Spain

    Directory of Open Access Journals (Sweden)

    Fernández Calzado, M.ª R.

    2013-12-01

    Full Text Available Lichens are common organisms in high mountain zones, where they play an important role in ecosystem balance. In recent years, the increasing interest in understanding more about their interactions with abiotic factors has prompted several investigations, some of which have proved their value as bioindicators of climatic conditions. In this context, focusing on climatic change effects on high mountain vascular plants and supported by the Global Observation Research Initiative in Alpine Environments project (GLORIA, we have monitored for the first time the lichens biodiversity in Sierra Nevada with the intention of studying the alterations caused by the process of climatic change. The aim of this paper is to explain the monitoring experience developed on the massif and contribute to the first results from the biodiversity and statistical analysis of the sampling data.Los líquenes son organismos comunes en las zonas de alta montaña donde juegan un importante papel en el equilibrio de los ecosistemas. En los últimos años, el creciente interés por entender más acerca de sus interacciones con los factores abióticos ha motivado diversas investigaciones, algunas de las cuales han demostrado su valor como bioindicadores de las condiciones climáticas. En este contexto, centrándonos en los efectos del cambio climático en plantas vasculares de alta montaña y respaldados por el proyecto “Iniciativa para la investigación y el seguimiento global de los ambientes alpinos (GLORIA”, se ha monitorizado por primera vez la diversidad de líquenes en Sierra Nevada con la intención de estudiar las posibles alteraciones que esta pueda sufrir causadas por el proceso de cambio climático. El objetivo de este artículo es el de dar a conocer la experiencia de seguimiento en el macizo y aportar los primeros resultados procedentes del análisis, tanto de la biodiversidad como estadístico, de los datos de muestreo.

  4. Eastern Frequency Response Study

    Energy Technology Data Exchange (ETDEWEB)

    Miller, N.W.; Shao, M.; Pajic, S.; D' Aquila, R.

    2013-05-01

    This study was specifically designed to investigate the frequency response of the Eastern Interconnection that results from large loss-of-generation events of the type targeted by the North American Electric Reliability Corp. Standard BAL-003 Frequency Response and Frequency Bias Setting (NERC 2012a), under possible future system conditions with high levels of wind generation.

  5. Maintaining effective mass drug administration for lymphatic filariasis through in-process monitoring in Sierra Leone

    Directory of Open Access Journals (Sweden)

    Hodges Mary H

    2012-10-01

    Full Text Available Abstract Background Since 2007 Sierra Leone has conducted mass drug administration (MDA for the elimination of lymphatic filariasis (LF implemented by unpaid community health volunteers (CHVs. Other health campaigns such as Mother and Child Health Weeks (MCHW pay for services to be implemented at community level and these persons are then known as community health workers (CHWs. In 2010, the LF MDA in the 12 districts of the Southern, Northern and Eastern Provinces un-expectantly coincided with universal distribution of Long Lasting Insecticide Treated Nets (LLITNs during the MCHW. In-process monitoring of LF MDA was performed to ensure effective coverage was attained in hard to reach sites (HTR in both urban and rural locations where vulnerable populations reside. Methods Independent monitors interviewed individuals eligible for LF MDA and tallied those who recalled having taken ivermectin and albendazole, calculated program coverage and reported results daily by phone. Monitoring of coverage in HTR sites in the 4 most rapidly urbanizing towns was performed after 4 weeks of LF MDA and again after 8 weeks throughout all 12 districts. End process monitoring was performed in randomly selected HTR sites not previously sampled throughout all 12 districts and compared to coverage calculated from the pre-MDA census and reported treatments. Results Only one town had reached effective program coverage (≥80% after 4 weeks following which CHWs were recruited for LF MDA in all district headquarter towns. After 8 weeks only 4 of 12 districts had reached effective coverage so LF MDA was extended for a further month in all districts. By 12 weeks effective program coverage had been reached in all districts except Port Loko and there was no significant difference between those interviewed in communities versus households or by sex. Effective epidemiological coverage (≥65% was reported in all districts and overall was significantly higher in males versus

  6. Improved mapping strategy to better inform policy on the control of schistosomiasis and soil-transmitted helminthiasis in Sierra Leone

    Science.gov (United States)

    2011-01-01

    Background Schistosomiasis and soil-transmitted helminthiasis (STH) are endemic in Sierra Leone confirmed by national mapping in 2008. To better inform planning of preventive chemotherapy strategy, another survey was conducted before mass drug administration (MDA) in seven districts according to the mapping results or local knowledge. Fifty-nine chiefdoms and one school in every chiefdom were selected. Thirty school children aged 9-14 years from each school (total: 1760) were examined by parasitological methods for infection with Schistosoma mansoni and STHs. Results The overall prevalence of S. mansoni was 40.2% (95% confidence interval (CI): 37.9-42.5%), particularly in Kailahun (63.3%), Kenema (46.7%), Koinadugu (41.9%) and Kono (71.7%). The results demonstrated the focal distribution of S. mansoni in Bo, Tonkolili and Bombali districts with prevalence ranging from 0.0-63.3%, 3.3-90.0% and 0.0-67.9% respectively. The arithmetic mean intensity of S. mansoni infection was 95.4 epg (95% CI: 61.4-129.5 epg), Heavy mean intensity of infection was found in Kailahun (120.2 epg), Kenema (104.5 epg), Koinadugu (112.3 epg) and Kono (250.3 epg). Heavy or moderate infection with S. mansoni occurred in 20.7% of children examined. Hookworm prevalence was moderate: 31.2% (95% CI: 29.1-33.4%), but high in Bo (50.0%) and Tonkolili (56.7%). Hookworm intensity of infection was light with a mean epg of 53.0 (95% CI: 38.4-67.7 epg). Prevalence and intensity of Ascaris lumbricoides (1.5%, 17.8 epg) and Trichuris trichiura (2.5%, 20.3 epg) was low. Conclusions The prediction by previous spatial analysis that S. mansoni was highly endemic across north-eastern Sierra Leone was confirmed with a significant proportion of children heavily or moderately infected. The distribution of S. mansoni in Bo, Tonkolili and Bombali districts ranged widely, highlighting the importance of considering the nature of focal transmission in national mapping exercises. These results were used to refine the

  7. Improved mapping strategy to better inform policy on the control of schistosomiasis and soil-transmitted helminthiasis in Sierra Leone.

    Science.gov (United States)

    Hodges, Mary; Dada, Nsa; Wamsley, Anna; Paye, Jusufu; Nyorkor, Emanuel; Sonnie, Mustapha; Barnish, Guy; Bockarie, Moses; Zhang, Yaobi

    2011-06-06

    Schistosomiasis and soil-transmitted helminthiasis (STH) are endemic in Sierra Leone confirmed by national mapping in 2008. To better inform planning of preventive chemotherapy strategy, another survey was conducted before mass drug administration (MDA) in seven districts according to the mapping results or local knowledge. Fifty-nine chiefdoms and one school in every chiefdom were selected. Thirty school children aged 9-14 years from each school (total: 1760) were examined by parasitological methods for infection with Schistosoma mansoni and STHs. The overall prevalence of S. mansoni was 40.2% (95% confidence interval (CI): 37.9-42.5%), particularly in Kailahun (63.3%), Kenema (46.7%), Koinadugu (41.9%) and Kono (71.7%). The results demonstrated the focal distribution of S. mansoni in Bo, Tonkolili and Bombali districts with prevalence ranging from 0.0-63.3%, 3.3-90.0% and 0.0-67.9% respectively. The arithmetic mean intensity of S. mansoni infection was 95.4 epg (95% CI: 61.4-129.5 epg), Heavy mean intensity of infection was found in Kailahun (120.2 epg), Kenema (104.5 epg), Koinadugu (112.3 epg) and Kono (250.3 epg). Heavy or moderate infection with S. mansoni occurred in 20.7% of children examined. Hookworm prevalence was moderate: 31.2% (95% CI: 29.1-33.4%), but high in Bo (50.0%) and Tonkolili (56.7%). Hookworm intensity of infection was light with a mean epg of 53.0 (95% CI: 38.4-67.7 epg). Prevalence and intensity of Ascaris lumbricoides (1.5%, 17.8 epg) and Trichuris trichiura (2.5%, 20.3 epg) was low. The prediction by previous spatial analysis that S. mansoni was highly endemic across north-eastern Sierra Leone was confirmed with a significant proportion of children heavily or moderately infected. The distribution of S. mansoni in Bo, Tonkolili and Bombali districts ranged widely, highlighting the importance of considering the nature of focal transmission in national mapping exercises. These results were used to refine the MDA for schistosomiasis control

  8. The saltiest springs in the Sierra Nevada, California

    Science.gov (United States)

    Moore, James G.; Diggles, Michael F.; Evans, William C.; Klemic, Karin

    2017-07-20

    The five saltiest springs in the Sierra Nevada in California are found between 38.5° and 38.8° N. latitude, on the South Fork American River; on Caples Creek, a tributary of the Silver Fork American River; and on the North Fork Mokelumne River. The springs issue from Cretaceous granitic rocks in the bottoms of these major canyons, between 1,200- and 2,200-m elevation. All of these springs were well known to Native Americans, who excavated meter-sized basins in the granitic rock, within which they produced salt by evaporation near at least four of the five spring sites. The spring waters are dominated by Cl, Na, and Ca; are enriched relative to seawater in Ca, Li, and As; and are depleted in SO4, Mg, and K. Tritium analyses indicate that the spring waters have had little interaction with rainfall since about 1954. The waters are apparently an old groundwater of meteoric origin that resided at depth before moving up along fractures to the surface of the exhumed granitic rocks. However, along the way these waters incorporated salts from depth, the origin of which could have been either from marine sedimentary rocks intruded by the granitic magmas or from fluid inclusions in the granitic rocks. Prolonged storage at depth fostered water-rock interactions that undoubtedly modified the fluid compositions.

  9. SIERRA Multimechanics Module: Aria User Manual Version 4.42.

    Energy Technology Data Exchange (ETDEWEB)

    Sierra Thermal/Fluid Team

    2016-10-01

    Aria is a Galerkin finite element based program for solving coupled-physics problems described by systems of PDEs and is capable of solving nonlinear, implicit, transient and direct-to-steady state problems in two and three dimensions on parallel architectures. The suite of physics currently supported by Aria includes thermal energy transport, species transport, and electrostatics as well as generalized scalar, vector and tensor transport equations. Additionally, Aria includes support for manufacturing process flows via the incompressible Navier-Stokes equations specialized to a low Reynolds number (Re %3C 1) regime. Enhanced modeling support of manufacturing processing is made possible through use of either arbitrary Lagrangian- Eulerian (ALE) and level set based free and moving boundary tracking in conjunction with quasi-static nonlinear elastic solid mechanics for mesh control. Coupled physics problems are solved in several ways including fully-coupled Newton's method with analytic or numerical sensitivities, fully-coupled Newton- Krylov methods and a loosely-coupled nonlinear iteration about subsets of the system that are solved using combinations of the aforementioned methods. Error estimation, uniform and dynamic h-adaptivity and dynamic load balancing are some of Aria's more advanced capabilities. Aria is based upon the Sierra Framework.

  10. Sierra Stars Observatory Network: An Accessible Global Network

    Science.gov (United States)

    Williams, Richard; Beshore, Edward

    2011-03-01

    The Sierra Stars Observatory Network (SSON) is a unique partnership among professional observatories that provides its users with affordable high-quality calibrated image data. SSON comprises observatories in the Northern and Southern Hemisphere and is in the process of expanding to a truly global network capable of covering the entire sky 24 hours a day in the near future. The goal of SSON is to serve the needs of science-based projects and programs. Colleges, universities, institutions, and individuals use SSON for their education and research projects. The mission of SSON is to promote and expand the use of its facilities among the thousands of colleges and schools worldwide that do not have access to professional-quality automated observatory systems to use for astronomy education and research. With appropriate leadership and guidance educators can use SSON to help teach astronomy and do meaningful scientific projects. The relatively small cost of using SSON for this type of work makes it affordable and accessible for educators to start using immediately. Remote observatory services like SSON need to evolve to better support education and research initiatives of colleges, institutions and individual investigators. To meet these needs, SSON is developing a sophisticated interactive scheduling system to integrate among the nodes of the observatory network. This will enable more dynamic observations, including immediate priority interrupts, acquiring moving objects using ephemeris data, and more.

  11. Geological and geophysical investigations at Sierra del Medio massif - Argentine

    International Nuclear Information System (INIS)

    Perucca, J.C.; Llambias, E.; Puigdomenech, H.H.; Cebrelli, E.; Castro, C.E.; Grassi, I.; Salinas, L.I.

    1987-01-01

    Geological investigations were performed at Sierra del Medio (Chubut Province), a mountainous massif of about 25 km by 8 km of migmatic origin, which emerges from a depressed tectonic trench or graben called Pampa de Gastre. The most ancient rocks belong to biotitic and anphibolic schist that passed almost entirely to tonalitoid migmatites with a second process producing granitic rocks. Boreholes were drilled on the basis of conclusions from Landsat satellites imagery and aerial photographic sets, folowed by field work on geological, petrographic, geophysical and hydrogeological features at surface, structural interpretation supported by geostatistical computations. Two sets of boreholes were drilled to investigate subsurface rock behaviour al 300 m depth and 800 m depth respectively, beginning at peripheral places and ending at the central part or selected site. Basic purposes of boreholes were to define structural and petrographic features of the rock massif by a good comprehension of master joints and faulting distribution with its belts of alteration mylonitization or brecciation, mechanical properties of samples, chemical composition and varitions, petrographic facies and mineralogy. Boreholes provided data to investigate joints, faults and dikes as general discontinuities for hydraulic research like permeability or effective hydraulic conductivity, and their geostatistical modelling. Boreholes are also being prepared for geophysical logging from which logthermal ones have already been completed. (Author) [es

  12. SIERRA Multimechanics Module: Aria User Manual Version 4.46.

    Energy Technology Data Exchange (ETDEWEB)

    Sierra Thermal/Fluid Team

    2017-09-01

    Aria is a Galerkin fnite element based program for solving coupled-physics problems described by systems of PDEs and is capable of solving nonlinear, implicit, transient and direct-to-steady state problems in two and three dimensions on parallel architectures. The suite of physics currently supported by Aria includes thermal energy transport, species transport, and electrostatics as well as generalized scalar, vector and tensor transport equations. Additionally, Aria includes support for manufacturing process fows via the incompressible Navier-Stokes equations specialized to a low Reynolds number ( %3C 1 ) regime. Enhanced modeling support of manufacturing processing is made possible through use of either arbitrary Lagrangian- Eulerian (ALE) and level set based free and moving boundary tracking in conjunction with quasi-static nonlinear elastic solid mechanics for mesh control. Coupled physics problems are solved in several ways including fully-coupled Newton's method with analytic or numerical sensitivities, fully-coupled Newton- Krylov methods and a loosely-coupled nonlinear iteration about subsets of the system that are solved using combinations of the aforementioned methods. Error estimation, uniform and dynamic h -adaptivity and dynamic load balancing are some of Aria's more advanced capabilities. Aria is based upon the Sierra Framework.

  13. SIERRA Multimechanics Module: Aria User Manual Version 4.44

    Energy Technology Data Exchange (ETDEWEB)

    Sierra Thermal/Fluid Team

    2017-04-01

    Aria is a Galerkin fnite element based program for solving coupled-physics problems described by systems of PDEs and is capable of solving nonlinear, implicit, transient and direct-to-steady state problems in two and three dimensions on parallel architectures. The suite of physics currently supported by Aria includes thermal energy transport, species transport, and electrostatics as well as generalized scalar, vector and tensor transport equations. Additionally, Aria includes support for manufacturing process fows via the incompressible Navier-Stokes equations specialized to a low Reynolds number ( %3C 1 ) regime. Enhanced modeling support of manufacturing processing is made possible through use of either arbitrary Lagrangian- Eulerian (ALE) and level set based free and moving boundary tracking in conjunction with quasi-static nonlinear elastic solid mechanics for mesh control. Coupled physics problems are solved in several ways including fully-coupled Newton's method with analytic or numerical sensitivities, fully-coupled Newton- Krylov methods and a loosely-coupled nonlinear iteration about subsets of the system that are solved using combinations of the aforementioned methods. Error estimation, uniform and dynamic h -adaptivity and dynamic load balancing are some of Aria's more advanced capabilities. Aria is based upon the Sierra Framework.

  14. específico en la sierra norte de Sevilla

    Directory of Open Access Journals (Sweden)

    Rafael Garzón García

    2008-01-01

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

  15. A Self-Assessment of the Effectiveness to Control Radiation Sources in Sierra Leone

    Energy Technology Data Exchange (ETDEWEB)

    Bun-Tejan, Umaru Remilekun [KAIST, Daejeon (Korea, Republic of); Lee, Byung Soo [Korea Institute of Nuclear Safety, Daejeon (Korea, Republic of)

    2016-10-15

    There is an urgent need to effectively control sources of ionizing radiation. Sources of ionizing radiation pose serious occupational, public health, and environmental consequences, if not properly controlled. The government of Sierra Leone knows the importance of controlling these sources of ionizing radiation and of establishing an independent Nuclear Safety Infrastructure. Sierra Leone has no nuclear facilities but, it is rapidly developing its infrastructure in order to obtain nuclear technology. However, the regulatory effectiveness in controlling radiation risk is essential for the International Atomic Energy Agency to allow the transfer of nuclear technology. For this reason, this study will evaluate the status of the regulatory authority in Sierra Leone to control radiation risk. The International Atomic Energy Agency (IAEA) review mission to Sierra Leone found that the RPBA did not give sufficient enforcement powers to the Board Secretariat. The research evaluated the status of the regulatory authority of Sierra Leone. The status of the regulatory authority was evaluated against several parameters including management systems, regulatory processes, authorization, inspection, and enforcement. The ability to effectively control ionizing radiation sources depends on the status of the regulatory body. The Integrated Regulatory Review Service Report on Sierra Leone led us to infer that there is a need for the regulatory authority to rapidly improve its ability to control ionizing radiation sources in the country. The findings however, revealed that the overall strengths of the regulatory body in Sierra Leone slightly outnumber the weaknesses. Management systems have a ratio of 0.85:1 of strengths to weaknesses. This ratio makes management systems the weakest parameter evaluated. Thus there is need for stronger collaboration between management staff. The Regulatory processes have a ratio of 1.3:1, authorizations have a ratio of 4.3:1, inspections have ratio of 2

  16. A Self-Assessment of the Effectiveness to Control Radiation Sources in Sierra Leone

    International Nuclear Information System (INIS)

    Bun-Tejan, Umaru Remilekun; Lee, Byung Soo

    2016-01-01

    There is an urgent need to effectively control sources of ionizing radiation. Sources of ionizing radiation pose serious occupational, public health, and environmental consequences, if not properly controlled. The government of Sierra Leone knows the importance of controlling these sources of ionizing radiation and of establishing an independent Nuclear Safety Infrastructure. Sierra Leone has no nuclear facilities but, it is rapidly developing its infrastructure in order to obtain nuclear technology. However, the regulatory effectiveness in controlling radiation risk is essential for the International Atomic Energy Agency to allow the transfer of nuclear technology. For this reason, this study will evaluate the status of the regulatory authority in Sierra Leone to control radiation risk. The International Atomic Energy Agency (IAEA) review mission to Sierra Leone found that the RPBA did not give sufficient enforcement powers to the Board Secretariat. The research evaluated the status of the regulatory authority of Sierra Leone. The status of the regulatory authority was evaluated against several parameters including management systems, regulatory processes, authorization, inspection, and enforcement. The ability to effectively control ionizing radiation sources depends on the status of the regulatory body. The Integrated Regulatory Review Service Report on Sierra Leone led us to infer that there is a need for the regulatory authority to rapidly improve its ability to control ionizing radiation sources in the country. The findings however, revealed that the overall strengths of the regulatory body in Sierra Leone slightly outnumber the weaknesses. Management systems have a ratio of 0.85:1 of strengths to weaknesses. This ratio makes management systems the weakest parameter evaluated. Thus there is need for stronger collaboration between management staff. The Regulatory processes have a ratio of 1.3:1, authorizations have a ratio of 4.3:1, inspections have ratio of 2

  17. Photo series for quantifying forest fuels in Mexico: montane subtropical forests of the Sierra Madre del Sur and temperate forests and montane shrubland of the northern Sierra Madre Oriental

    Science.gov (United States)

    Jorge E. Morfin-Rios; Ernesto Alvarado-Celestino; Enrique J. Jardel-Pelaez; Robert E. Vihnanek; David K. Wright; Jose M. Michel-Fuentes; Clinton S. Wright; Roger D. Ottmar; David V. Sandberg; Andres Najera-Diaz

    2008-01-01

    Single wide-angle and stereo photographs display a range of forest ecosystems conditions and fuel loadings in montane subtropical forests of the Sierra Madre del Sur and temperate forests and montane shrubland of the northern Sierra Madre Oriental of Mexico. Each group of photographs includes inventory information summarizing overstory vegetation composition and...

  18. Southern Sierra Nevada Continental Dynamics Project: 1993 field observations of the NPE

    Energy Technology Data Exchange (ETDEWEB)

    Keller, G.R. [Univ. of Texas, El Paso, TX (United States); Malin, P.E. [Duke Univ., Durham, NC (United States); Ruppert, S.D. [LLNL, Livermore, CA (United States)

    1994-12-31

    The Southern Sierra Nevada Continental Dynamics Project is a multidisciplinary, multi-institutional investigation of the cause of the uplift of the Sierra Nevada and its relationship to extension in the adjacent Basin and Range. A broad range of geologic and geophysical data have been collected as part of this project. These data include both passive and active seismic measurements, as well as gravity and magnetotelluric observations. Three seismic refraction/wide-angle reflection profiles were recorded: (1) a 325-km-long, north-south profile extending from just east of Mono Lake south across the Garlock fault, (2) a 400-km-long, east-west profile extending from Death Valley west across the Sierra Nevada to near the San Andreas fault, and (3) a 480-km-long, east-west profile deployed for the NPE. This profile extended from Beatty, Nevada, west across the Sierra Nevada along the previously recorded east-west profile and continued nearly to the Pacific Ocean. Up to 675 seismic recorders were deployed for each profile. These data are allowing us to develop refined models of the crustal and upper mantle structure of the southern Sierra Nevada and to evaluate alternative hypotheses for its uplift and for Basin and Range extension. They also provide insight into the propagation of regional phases across complex structures.

  19. 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.

  20. Application of Cs-137 techniques to problems of sediment redistribution in Sungai Lui representative basin, Selangor, Malaysia (Part 1)

    International Nuclear Information System (INIS)

    Daud bin Mohamad.

    1982-11-01

    Since the beginning of the nuclear age, Cesium-137 has become a part of the world's ecosystems. Cs-137 is carried from the atmosphere to the ground by rainfall. On reaching the earth's surface, 137 Cs becomes strongly adsorbed to soil profiles and is concentrated predominantly in the surface layer, particularly in clayey soils. Systematic measurements of Cs-137 levels will therefore permit estimates to be made of the cumulative effects of soil redistribution over the past 25 years. Sediment movement in river catchments and coastal areas is a very old problem in Malaysia. In view of rapid development of urban and agricultural areas in Malaysia it was realised tha soil loss problems are particularly serious. The Sungai Lui catchment was chosen to be the investigational site. Geologically, the area comprises of granite and granitic schist. The area is mostly covered by forest (approx. 83%) and rubber (13%), padi (2%) and others (2%). The climate is considered to be typical of Peninsular Malaysia (equatorial) characterised by uniform temperature, high humidity and high rainfall. The area is mainly drained by the Lui River. Soil samples were collected from the catchment area at 4 sampling points in April 1981. The results of analyses of Cs-137 in soil samples from Sungai Lui catchment area ranged from 1.3 to 6.8 M Bq g -1 of sample and they could still be detected even up to 20 cm depth. A general pattern of Cs-137 distribution was observed in the soil profile at each site. The highest activity being in the top 3 cm layer and then decreasing up to about 6 cm. The activity increases again up to about 9 cm layer. From there onwards, it decreases. Based on these results, the estimated rate of sediment accumulation in the area was found to be about 0.47 cm/year. Since the samples were only collected from the depositional sites, further sampling especially from erosional site should therefore be carried out in order to obtain more complete data

  1. 77 FR 23476 - Energia Sierra Juarez U.S., LLC; Supplemental Notice That Initial Market-Based Rate Filing...

    Science.gov (United States)

    2012-04-19

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. ER12-1470-000] Energia Sierra Juarez U.S., LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes Request for... Energia Sierra Juarez U.S., LLC's application for market-based rate authority, with an accompanying rate...

  2. 75 FR 26786 - Notice of Public Meeting: Sierra Front-Northwestern Great Basin Resource Advisory Council, NV

    Science.gov (United States)

    2010-05-12

    ... 261A; 10-08807; MO 4500012081; TAS: 14X1109] Notice of Public Meeting: Sierra Front-Northwestern Great..., Bureau of Land Management (BLM) Sierra Front-Northwestern Great Basin Resource Advisory Council (RAC... discussion will include, but are not limited to: District Manager's reports on current program of work, Draft...

  3. Airborne Pesticides as an Unlikely Cause for Population Declines of Alpine Frogs in the Sierra Nevada, California

    Science.gov (United States)

    Airborne pesticides from the Central Valley of California have been implicated as a cause for population declines of several amphibian species, with the strongest evidence for the mountain yellow-legged frog complex (Rana muscosa and R. sierrae) in the Sierra Nevada. We measured...

  4. A New Destination for "The Flying Bus"?: The Implications of Orlando-Rican Migration for Luis Rafael Sanchez's "La guagua aerea"

    Science.gov (United States)

    Barreneche, Gabriel Ignacio; Lombardi, Jane; Ramos-Flores, Hector

    2012-01-01

    Puerto Rican author Luis Rafael Sanchez's "La guagua aerea" explores the duality, hybridity, and fluidity of US-Puerto Rican identity through the frequent travel of migrants between New York City (the traditional destination city for Puerto Rican migrants) and the island. In recent years, however, the "flying bus" has adopted a…

  5. Jean-Philippe Luis, L’ivresse de la fortune. A.M. Aguado, un génie des affaires

    Directory of Open Access Journals (Sweden)

    Claude Morange

    2011-02-01

    Marismas del Guadalquivir, que creó para él Fernando vii, no era de lo más prestigioso, condecoraciones, castillos y extensos dominios. La otra cara del personaje la constituyen las inversiones que realizó en el mundo industrial o en proyectos de fomento: minas del Creusot, ferrocarril de París a Dieppe, y, en España, minas de plomo de la sierra de Gador, saneamiento de las marismas del Guadalquivir y minas de carbón de Asturias. Allí le sorprendió la muerte, en 1842, cuando fue a inaugurar la carretera que había hecho construir para transportar el carbón hacia el puerto de Gijón. Dejó una fortuna aún considerable, a pesar de que había despilfarrado gran parte en gastos de prestigio e inversiones a veces poco acertadas. Pero no consiguió fundar y dejar tras sí una dinastía como la de los Rothschild. El itinerario de Aguado es, sin duda, representativo de una época, la del tránsito de la vieja sociedad aristocrática a la de la burguesía capitalista, con las contradicciones que esto conllevaba, siendo la principal la persistencia de los viejos valores en medio de una sociedad profundamente revolucionada. A lo largo de este riquísimo estudio, J. P. Luis reflexiona sobre la importancia respectiva que tienen en el destino de un individuo condicionamientos de estamento o de clase, redes familiares y de amistad y factores individuales que, en su opinión, siempre pesan más, en última instancia, que el entorno. Obviamente, esto se verifica sobre todo en el caso de una personalidad excepcional como la de Aguado. Libro fundamental, pues, para los historiadores de la España y la Francia de principios del siglo xix. Libro denso y muy documentado, pero accesible para el simple curioso de la Europa posnapoleónica, que verá desfilar por sus páginas cantidad de personajes españoles y franceses, desde la Andalucía de finales del siglo xviii hasta el París tan contrastado de La Comédie humaine, entre capitalismo conquistador y elitismo romántico.

  6. Transcurrencia a lo largo de la Falla Sierra de Varas (Sistema de fallas de la Cordillera de Domeyko, norte de Chile Strike-slip along the Sierra de Varas Fault (Cordillera de Domeyko Fault-System, northern Chile

    Directory of Open Access Journals (Sweden)

    Hans Niemeyer

    2009-01-01

    Aguada del Hornito-Aguada del Cerro Alto de Varas segment. Upper Paleozoic granitoids of the same composition, internal structure and age were cut and displaced by the fault. A sinistral horizontal separation of 15.6±1 kmwitha vertical componentof 4.9±0.1 km, suggests a sinistral-reverse net displacement of 16.4±1 km. Thisis consistent with the local stratigraphic section that was eroded from the eastern block. A kinematic and dynamic analysis of mesofaults spatially related to the SVF displacements was conducted to identify the different fault populations and to obtain the stress tensor. Two structural systems were identified: an early reverse-strike-slip system and a late dextral superposed system. The first one ocurred during late middle Eocene, and the second is post-Miocene with an horizontal displacement of 0.6 km. The presence of coeval strike-slip displacements along the Sierra de Varas Fault and reverse displacements in a 'reverse flower' in the studied segment show that the structural evolution of the Sierra de Varas was dominated by a bulk transpression during the late middle Eocene. The left-lateral displacement here demonstrated for the Sierra de Varas Fault and its inflection to the SE, south of the Aguada del Cerro Alto de Varas are compatible with the westward vergence of the folds and reverse faults in the El Profeta fault-and-thrust belt, which should be also the result of the transpression.

  7. Dataset of Passerine bird communities in a Mediterranean high mountain (Sierra Nevada, Spain)

    Science.gov (United States)

    Pérez-Luque, Antonio Jesús; Barea-Azcón, José Miguel; Álvarez-Ruiz, Lola; Bonet-García, Francisco Javier; Zamora, Regino

    2016-01-01

    Abstract In this data paper, a dataset of passerine bird communities is described in Sierra Nevada, a Mediterranean high mountain located in southern Spain. The dataset includes occurrence data from bird surveys conducted in four representative ecosystem types of Sierra Nevada from 2008 to 2015. For each visit, bird species numbers as well as distance to the transect line were recorded. A total of 27847 occurrence records were compiled with accompanying measurements on distance to the transect and animal counts. All records are of species in the order Passeriformes. Records of 16 different families and 44 genera were collected. Some of the taxa in the dataset are included in the European Red List. This dataset belongs to the Sierra Nevada Global-Change Observatory (OBSNEV), a long-term research project designed to compile socio-ecological information on the major ecosystem types in order to identify the impacts of global change in this area. PMID:26865820

  8. Dataset of Passerine bird communities in a Mediterranean high mountain (Sierra Nevada, Spain).

    Science.gov (United States)

    Pérez-Luque, Antonio Jesús; Barea-Azcón, José Miguel; Álvarez-Ruiz, Lola; Bonet-García, Francisco Javier; Zamora, Regino

    2016-01-01

    In this data paper, a dataset of passerine bird communities is described in Sierra Nevada, a Mediterranean high mountain located in southern Spain. The dataset includes occurrence data from bird surveys conducted in four representative ecosystem types of Sierra Nevada from 2008 to 2015. For each visit, bird species numbers as well as distance to the transect line were recorded. A total of 27847 occurrence records were compiled with accompanying measurements on distance to the transect and animal counts. All records are of species in the order Passeriformes. Records of 16 different families and 44 genera were collected. Some of the taxa in the dataset are included in the European Red List. This dataset belongs to the Sierra Nevada Global-Change Observatory (OBSNEV), a long-term research project designed to compile socio-ecological information on the major ecosystem types in order to identify the impacts of global change in this area.

  9. Tectonic, volcanic, and climatic geomorphology study of the Sierras Pampeanas Andes, northwestern Argentina

    Science.gov (United States)

    Bloom, A. L.; Strecker, M. R.; Fielding, E. J.

    1984-01-01

    A proposed analysis of Shuttle Imaging Radar-B (SIR-B) data extends current research in the Sierras Pampeanas and the Puna of northwestern Argentina to the determination - by the digital analysis of mountain-front sinuousity - of the relative age and amount of fault movement along mountain fronts of the late-Cenozoic Sierras Pampeanas basement blocks; the determination of the age and history of the boundary across the Andes at about 27 S latitude between continuing volcanism to the north and inactive volcanism to the south; and the determination of the age and extent of Pleistocene glaciation in the High Sierras, as well as the comparative importance of climatic change and tectonic movements in shaping the landscape. The integration of these studies into other ongoing geology projects contributes to the understanding of landform development in this active tectonic environment and helps distinguish between climatic and tectonic effects on landforms.

  10. Copper localization, elemental content, and thallus colour in the copper hyperaccumulator lichen Lecanora sierra from California

    Science.gov (United States)

    Purvis, O.W.; Bennett, J.P.; Spratt, J.

    2011-01-01

    An unusual dark blue-green lichen, Lecanora sierrae, was discovered over 30 years ago by Czehura near copper mines in the Lights Creek District, Plumas County, Northern California. Using atomic absorption spectroscopy, Czehura found that dark green lichen samples from Warren Canyon contained 4% Cu in ash and suggested that its colour was due to copper accumulation in the cortex. The present study addressed the hypothesis that the green colour in similar material we sampled from Warren Canyon in 2008, is caused by copper localization in the thallus. Optical microscopy and electron microprobe analysis of specimens of L. sierrae confirmed that copper localization took place in the cortex. Elemental analyses of L. sierrae and three other species from the same localities showed high enrichments of copper and selenium, suggesting that copper selenates or selenites might occur in these lichens and be responsible for the unusual colour.

  11. Copper localization, elemental content, and thallus colour in the copper hyperaccumulator lichen Lecanora sierrae from California

    Science.gov (United States)

    Purvis, O.W.; Bennett, J.P.; Spratt, J.

    2011-01-01

    An unusual dark blue-green lichen, Lecanora sierrae, was discovered over 30 years ago by Czehura near copper mines in the Lights Creek District, Plumas County, Northern California. Using atomic absorption spectroscopy, Czehura found that dark green lichen samples from Warren Canyon contained 4% Cu in ash and suggested that its colour was due to copper accumulation in the cortex. The present study addressed the hypothesis that the green colour in similar material we sampled from Warren Canyon in 2008, is caused by copper localization in the thallus. Optical microscopy and electron microprobe analysis of specimens of L. sierrae confirmed that copper localization took place in the cortex. Elemental analyses of L. sierrae and three other species from the same localities showed high enrichments of copper and selenium, suggesting that copper selenates or selenites might occur in these lichens and be responsible for the unusual colour. Copyright ?? 2011 British Lichen Society.

  12. Eastern Europe's market role

    International Nuclear Information System (INIS)

    Schreiber, K.F.

    1991-01-01

    Until the late 1980s, trade in nuclear fuel between market economy countries and those with planned economies was limited. The exception to this was in the enrichment market across Western Europe during the 1970s. Most of the nuclear generating plants in the Soviet Union and Eastern Europe are light water reactors needing enriched uranium. Under the fuel supply agreements with Eastern Europe, the Soviet Union has provided all of the regions' enrichment services, and therefore it has developed the only enrichment facilities. Techsnabexport (TENEX), the USSR foreign trade organization for the nuclear fuel cycle, first appeared in the early 1970s. It was as an alternative supplier to the US government, which had a monopoly in the West regarding enrichment. In 1986 the USSR entered and soon dominated the spot market for enrichment. Political changes in Eastern Europe at the end of 1989 and throughout 1990 opened the nuclear fuel market even wider. In 1990 the USSR began allowing exports of concentrates, as well as enriched product, and a free flow of trade to the Western market is now developing for both enrichment and uranium. (author)

  13. Un omaggio a Giuseppe Bellini attraverso un libro a lui dedicato: cuando quiero hallar las voces, encuentro con los afectos...

    Directory of Open Access Journals (Sweden)

    Emilia Perassi

    2015-01-01

    Full Text Available Il presente articolo si propone di tracciare il ritratto di uno dei grandi maestri di studi ispanoamericanistici, Giuseppe Bellini, attraverso una recente opera miscellanea a lui dedicata, a cura di Patrizia Spinato Bruschi e Jaime Martínez. Tale raccolta di saggi non solo restituisce le linee, i contenuti e le forme di una produzione critica monumentale ma ben mostra l’importante ruolo di studioso e di uomo che il Bellini è stato capace di esercitare, articolando attorno a sé una nutrita scuola, a partire dalla visione della letteratura come rete di dialogo e di scambio. I diversi temi affrontati dai più di cinquantacinque saggi mostrano la straordinaria capacità del Bellini di tessere una proficua rete di relazioni, di studio e di amicizia, e di promuovere l’ispanoamericanismo italiano, sempre attraverso il riconoscimento della letteratura come lezione civile e del buon vivere.

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

    Directory of Open Access Journals (Sweden)

    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.

  15. 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)

  16. On the Shores of the Revolution: Martín Luis Guzmán in Madrid (1915

    Directory of Open Access Journals (Sweden)

    Susana Quintanilla

    2014-07-01

    Full Text Available 1915 is considered a decisive year in world history. Underneath wartime plundering, eighteenth-century beliefs in social progress and human civilization collapsed, and other political and philosophical credos sprouted, while aesthetic avant-gardes created new forms of artistic and literary expression. That same year, from his exile in Madrid, Martín Luis Guzmán would define the coordinates that would guide his life, while trying to assimilate his recent experiences during the Mexican Revolution and make way as a writer, under the immediate protection of Alfonso Reyes and the far-away but determining one of Pedro Henríquez Ureña. Without abandoning his political vocation and remaining open to new trends, Guzmán drew up his own path, which would lead him alongside his mentors and to the forefront of literature in Spanish.

  17. 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.

  18. La reescritura de La infancia en Los días ocultos de Luis Oyarzún

    Directory of Open Access Journals (Sweden)

    Lorena Amaro Castro

    2013-12-01

    Full Text Available El filósofo Luis Oyarzún escribió dos novelas de carácter autobiográfico en que presenta las percepciones de un niño de provincia: La infancia (1940 y Los días ocultos (1955. Críticos como Roberto Hozven, Leonidas Morales y Olga Grau manifiestan que la segunda es una reelaboración de la primera. El siguiente artículo desarrolla una comparación entre ambos textos, buscando dilucidar y comprender cuáles son las diferencias entre ellos y en qué medida revelan una maduración en la escritura e inquietudes de un autor que ocupa un lugar hasta ahora marginal en la construcción canónica filosófica y literaria chilena.

  19. Marxismo y Moral. Reflexiones a partir de El marxismo como moral de José Luis López Aranguren

    Directory of Open Access Journals (Sweden)

    Muñoz, Jacobo

    2014-06-01

    Full Text Available Starting from a critical reading of El marxismo como moral, classical work of José Luis López Aranguren, this article deals with the problem of the normative and moral foundations of marxism. In order to go in depth into the ethical dimension of Karl Marx's and the marxist tradition's thought, the text proposes several thematic lines of analysis with the aim of liberating, at the same time, the intelectual and political project of Marx from the various clichés associated to its traditional reception. The ethical field will appear as a space of mediation between knowledge and reality, disclosing itself as fundamental to marxism from a praxeological point of view. At the end of the article there is a critical dialogue with different ethical positions in the frame of contemporary marxism.A partir de una lectura crítica de El marxismo como moral, obra clásica de José Luis López Aranguren, éste artículo trata de interrogarse acerca de los fundamentos normativos y morales del marxismo. A lo largo del texto se proponen diversas líneas temáticas para profundizar en la dimensión ética del pensamiento de Karl Marx y la tradición marxista, tratando de liberar, al mismo tiempo, su proyecto intelectual y político de diversos tópicos vinculados a su recepción tradicional. El ámbito ético aparecerá como espacio de mediación entre el conocimiento y la realidad, revelándose como fundamental para el marxismo desde un punto de vista praxeológico. Al final del artículo se dialoga críticamente con algunas posiciones éticas en el marco del marxismo contemporáneo.

  20. [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.

  1. 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

  2. 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.

  3. Peer-driven quality improvement among health workers and traditional birth attendants in Sierra Leone: linkages between providers' organizational skills and relationships.

    Science.gov (United States)

    Higgins-Steele, Ariel; Waller, Kathryn; Fotso, Jean Christophe; Vesel, Linda

    2015-01-01

    Sierra Leone has among the poorest maternal and child health indicators in the world and investments in public health have been predominately to increase demand for services, with fewer initiatives targeting supply side factors that influence health workers' work environment. This paper uses data from the Quality Circles project in a rural district of Sierra Leone to achieve three objectives. First, we examine the effect of the intervention on organizational skills and relationships among coworkers as well as between health workers and traditional birth attendants. Second, we examine whether changes in organizational skills are associated with changes in relationships among and between formal and informal health providers and between health providers and clients. Third, we aim to further understand these changes through the perspectives of health workers and traditional birth attendants. The Quality Circles project was implemented in Kailahun District in the Eastern province of Sierra Leone from August 2011 to June 2013, with adjacent Tonkolili District serving as the control site. Using a mixed-methods approach, the evaluation included a quantitative survey, in-depth interviews and focus group discussions with health workers and traditional birth attendants. Mean values of the variables of interest were compared across sub-populations, and correlation analyses were performed between changes in organizational skills and changes in relationships. The results demonstrate that the Quality Circles intervention had positive effects on organizational skills and relationships. Furthermore, improvements in all organizational skill variables - problem-solving, strategizing and negotiation skills - were strongly associated with a change in the overall relationship variable. The Quality Circles approach has the potential to support health workers to improve their organizational skills and relationships, which in turn can contribute to improving the interpersonal dimensions of

  4. Peer-driven quality improvement among health workers and traditional birth attendants in Sierra Leone: linkages between providers’ organizational skills and relationships

    Science.gov (United States)

    2015-01-01

    Background Sierra Leone has among the poorest maternal and child health indicators in the world and investments in public health have been predominately to increase demand for services, with fewer initiatives targeting supply side factors that influence health workers’ work environment. This paper uses data from the Quality Circles project in a rural district of Sierra Leone to achieve three objectives. First, we examine the effect of the intervention on organizational skills and relationships among coworkers as well as between health workers and traditional birth attendants. Second, we examine whether changes in organizational skills are associated with changes in relationships among and between formal and informal health providers and between health providers and clients. Third, we aim to further understand these changes through the perspectives of health workers and traditional birth attendants. Methods The Quality Circles project was implemented in Kailahun District in the Eastern province of Sierra Leone from August 2011 to June 2013, with adjacent Tonkolili District serving as the control site. Using a mixed-methods approach, the evaluation included a quantitative survey, in-depth interviews and focus group discussions with health workers and traditional birth attendants. Mean values of the variables of interest were compared across sub-populations, and correlation analyses were performed between changes in organizational skills and changes in relationships. Results The results demonstrate that the Quality Circles intervention had positive effects on organizational skills and relationships. Furthermore, improvements in all organizational skill variables – problem-solving, strategizing and negotiation skills – were strongly associated with a change in the overall relationship variable. Conclusions The Quality Circles approach has the potential to support health workers to improve their organizational skills and relationships, which in turn can contribute

  5. Vulnerability of birds to climate change in California's Sierra Nevada

    Directory of Open Access Journals (Sweden)

    Rodney B. Siegel

    2014-06-01

    Full Text Available In a rapidly changing climate, effective bird conservation requires not only reliable information about the current vulnerability of species of conservation concern, but also credible projections of their future vulnerability. Such projections may enable managers to preempt or reduce emerging climate-related threats through appropriate habitat management. We used NatureServe's Climate Change Vulnerability Index (CCVI to predict vulnerability to climate change of 168 bird species that breed in the Sierra Nevada mountains of California, USA. The CCVI assesses species-specific exposure and sensitivity to climate change within a defined geographic area, through the integration of (a species' range maps, (b information about species' natural history traits and ecological relationships, (c historic and current climate data, and (d spatially explicit climate change projections. We conducted the assessment under two different downscaled climate models with divergent projections about future precipitation through the middle of the 21st century. Assessments differed relatively little under the two climate models. Of five CCVI vulnerability ranking categories, only one species, White-tailed Ptarmigan (Lagopus leucura, received the most vulnerable rank, Extremely Vulnerable. No species received the second-highest vulnerability ranking, Highly Vulnerable. Sixteen species scored as Moderately Vulnerable using one or both climate models: Common Merganser (Mergus merganser, Osprey (Pandion haliaetus, Bald Eagle (Haliaeetus leucocephalus, Northern Goshawk (Accipiter gentilis, Peregrine Falcon (Falco peregrinus, Prairie Falcon (Falco mexicanus, Spotted Sandpiper (Actitis macularius, Great Gray Owl (Strix nebulosa, Black Swift (Cypseloides niger, Clark's Nutcracker (Nucifraga columbiana, American Dipper (Cinclus mexicanus, Swainson's Thrush (Catharus ustulatus, American Pipit (Anthus rubescens, Gray-crowned Rosy-Finch (Leucosticte tephrocotis, Pine Grosbeak

  6. Semiarid ethnoagroforestry management: Tajos in the Sierra Gorda, Guanajuato, Mexico.

    Science.gov (United States)

    Hoogesteger van Dijk, Vincent M; Casas, Alejandro; Moreno-Calles, Ana Isabel

    2017-06-12

    The semi-arid environments harbor nearly 40% of biodiversity, and half of indigenous cultures of Mexico. Thousands of communities settled in these areas depend on agriculture and using wild biodiversity for their subsistence. Water, soil, and biodiversity management strategies are therefore crucial for people's life. The tajos, from Sierra Gorda, are important, poorly studied, biocultural systems established in narrow, arid alluvial valleys. The systems are constructed with stone-walls for capturing sediments, gradually creating fertile soils in terraces suitable for agriculture in places where it would not be possible. We analyzed biocultural, ecological, economic and technological relevance of the artificial oasis-like tajos, hypothesizing their high capacity for maintaining agricultural and wild biodiversity while providing resources to people. We conducted our research in three sections of the Mezquital-Xichú River, in three communities of Guanajuato, Mexico. Agroforestry management practices were documented through semi-structured and in-depth qualitative interviews. Vegetation composition of local forests and that maintained in tajos was sampled and compared. Tajos harbor high agrobiodiversity, including native varieties of maize and beans, seven secondary crops, 47 native and 25 introduced perennial plant species. Perennial plants cover on average 26.8% of the total surface of plots. Tajos provide nearly 70% of the products required by households' subsistence and are part of their cultural identity. Tajos are heritage of TEK and land management forms of pre-Columbian Mexican and Mediterranean agricultural techniques, adapting and integrating modern agricultural practices. Tajos are valuable biocultural systems adapted to local semiarid conditions and sources of technology for similar areas of the World.

  7. Origen y decadencia del gamonalismo en la sierra ecuatoriana

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    Ibarra Crespo, Hernán

    2002-12-01

    Full Text Available This article analyzes the historical path of gamonalismo in Ecuadorian highlands. Although it could be alike to Mexican caciquismo and Brazilian coronelismo, gamonalismo had its specific forms. In Ecuador it is possible to reconstruct its meaning in political terms, as a form of traditional domination. The use of this particular term is analyzed in different historical moments between the 18th and 20th century; focusing on the origin and decline of this local power. The aim is to build an interpretative frame in order to understand agrarian sources of Ecuadorian state development and ethnic domination.

    Este artículo analiza la trayectoria histórica del gamonalismo en la sierra ecuatoriana. Aunque homologado con el caciquismo mexicano y el coronelismo brasileño, tiene rasgos específicos. En el Ecuador es posible reconstruir el significado del gamonalismo en el lenguaje político y como modalidad de dominación tradicional. Por una parte, se realiza un rastreo y análisis del uso del término en distintos momentos históricos entre los siglos XVIII y XX. Por otra parte, se efectúa un abordaje del origen y declinación de esta forma de poder. Se aspira a construir un marco interpretativo que aporte a la comprensión de los fundamentos agrarios de la constitución del Estado ecuatoriano y las formas de dominación étnica.

  8. Gravity data from the Sierra Vista Subwatershed, Upper San Pedro Basin, Arizona

    Science.gov (United States)

    Kennedy, Jeffrey R.

    2015-01-01

    Observations of very small changes of Earth’s gravitational field (time-lapse gravity) provide a direct, non-invasive method for measuring changes in aquifer storage change. An existing network of gravity stations in the Sierra Vista Subwatershed was revised in 2014 to better understand the spatial distribution of changes in aquifer storage, especially with relation to ephemeral channel recharge and a groundwater cone of depression associated with pumping in the greater Sierra Vista area. In addition, the network was extended to provide baseline data for possible future enhanced-recharge projects.

  9. SIERRA Code Coupling Module: Arpeggio User Manual Version 4.44

    Energy Technology Data Exchange (ETDEWEB)

    Sierra Thermal/Fluid Team

    2017-04-01

    The SNL Sierra Mechanics code suite is designed to enable simulation of complex multiphysics scenarios. The code suite is composed of several specialized applications which can operate either in standalone mode or coupled with each other. Arpeggio is a supported utility that enables loose coupling of the various Sierra Mechanics applications by providing access to Framework services that facilitate the coupling. More importantly Arpeggio orchestrates the execution of applications that participate in the coupling. This document describes the various components of Arpeggio and their operability. The intent of the document is to provide a fast path for analysts interested in coupled applications via simple examples of its usage.

  10. Soil fauna in forest and coffee plantations from the Sierra Nevada de Santa Mar ta, Colombia

    International Nuclear Information System (INIS)

    Camero R, Edgar

    2002-01-01

    Two research stations (M inca, 700 m altitude and Maria Ter esa, 790 m altitude) were established in the Sierra Nevada de Santa Mar ta in places to study the soil fauna associated with forest and coffee plantations. Soil fauna was collected using pitfall and Bailer's traps. Samples were taken from litter as well as from horizons 0, A and B. individuals collected were identified to family level. Diversity, abundance and frequency indexes were used to compare fauna composition at both sites. Significant differences were found between the two research sites as well as with data from other high altitude forest in the Sierra Nevada de Santa Mar ta

  11. Status and understanding of groundwater quality in the Tahoe-Martis, Central Sierra, and Southern Sierra study units, 2006-2007--California GAMA Priority Basin Project

    Science.gov (United States)

    Fram, Miranda S.; Belitz, Kenneth

    2012-01-01

    Groundwater quality in the Tahoe-Martis, Central Sierra, and Southern Sierra study units was investigated as part of the Priority Basin Project of the California Groundwater Ambient Monitoring and Assessment (GAMA) Program. The three study units are located in the Sierra Nevada region of California in parts of Nevada, Placer, El Dorado, Madera, Tulare, and Kern Counties. The GAMA Priority Basin Project is being conducted by the California State Water Resources Control Board, in collaboration with the U.S. Geological Survey (USGS) and the Lawrence Livermore National Laboratory. The project was designed to provide statistically robust assessments of untreated groundwater quality within the primary aquifer systems used for drinking water. The primary aquifer systems (hereinafter, primary aquifers) for each study unit are defined by the depth of the screened or open intervals of the wells listed in the California Department of Public Health (CDPH) database of wells used for municipal and community drinking-water supply. The quality of groundwater in shallower or deeper water-bearing zones may differ from that in the primary aquifers; shallower groundwater may be more vulnerable to contamination from the surface. The assessments for the Tahoe-Martis, Central Sierra, and Southern Sierra study units were based on water-quality and ancillary data collected by the USGS from 132 wells in the three study units during 2006 and 2007 and water-quality data reported in the CDPH database. Two types of assessments were made: (1) status, assessment of the current quality of the groundwater resource, and (2) understanding, identification of the natural and human factors affecting groundwater quality. The assessments characterize untreated groundwater quality, not the quality of treated drinking water delivered to consumers by water purveyors. Relative-concentrations (sample concentrations divided by benchmark concentrations) were used for evaluating groundwater quality for those

  12. Noteworthy records of two species of mammals in the Sierra Madre de Oaxaca, Mexico Registros notables de dos especies de mamíferos de la Sierra Madre de Oaxaca, México

    Directory of Open Access Journals (Sweden)

    Miguel Briones-Salas

    2006-12-01

    Full Text Available We conducted mammal surveys in the Sierra Madre de Oaxaca (Sierra Norte in Oaxaca, Mexico, and recorded the occurrence of two conspicuous mammal species: the spider monkey (Ateles geoffroyi vellerosus and the coyote (Canis latrans cagottis. Spider monkeys has not been previously recorded in the Sierra Madre de Oaxaca, and coyotes have not been previously observed in Mexico at elevations as high as the present one (3 200 mas1 in the Sierra Madre de Oaxaca.Se efectuaron colectas de mamíferos en la Sierra Madre de Oaxaca (Sierra Norte en Oaxaca, México, y se registró la notoria presencia de dos mamíferos: el mono araña (Ateles geoffroyi vellerosus y el coyote (Canis latrans cagottis. El mono araña no se había registrado previamente en la Sierra Madre de Oaxaca, en tanto que el coyote, no había sido registrado en México a tan gran altitud (3 200 m como la de la localidad de captura.

  13. Paleotsunamis in Eastern Taiwan

    Science.gov (United States)

    Yen, Jiun-Yee; Yu, Neng-Ti; Hirakawa, Kazuomi; Chyi, Shyh-Jeng; Huang, Shao-Yi

    2017-04-01

    Although Taiwan is located in the active collision zone between Eurasian and the Philippine Sea plate with very high seismicity in and surrounding the island, and supposedly highly susceptible to tsunami hazard. However, there is no record of tsunami hazard in the past one hundred years, and only very few historical records show some possible extreme event occurred. Therefore study of tsunami was scarce in Taiwan. Although historical records do show possible tsunami events, the records were too sparse and incomplete to confidently reconstruct the paleotsunami events. In the past few years, numerical simulations based on possible tsunami-genic zones near Taiwan show that the island could be affected by the correctly directed tsunami. Nevertheless, there is no detail, scientific research of paleotsunami records yet in Taiwan. Our field survey in eastern Taiwan (facing the western Pacific Ocean) along the coast uncovered several outcrops contain gravels embedded in well-developed soil layers. The rounded meta-sandstone gravels are clearly beach-origin and were brought to their current location upon extreme wave events, which is composed of either volcanic-clastic deposits from nearby hills or organic soil layers formed locally. Our investigation indicates that there are at least 3 events in the northern half of eastern Taiwan and at least 2 events in southern part of eastern Taiwan. Although these outcrops are next to the shoreline and Taiwan is susceptible from typhoons, these gravels could be farther away from the beach at the time of their deposition due to current high retreat rate of the sea cliff. Further investigations are needed to delineate possible sources of tsunamis that caused the deposits.

  14. Holocene glaciation of the central Sierra Nevada, California

    Science.gov (United States)

    Bowerman, Nicole D.; Clark, Douglas H.

    2011-05-01

    Sediment cores from two bedrock-dammed lakes in North Fork Big Pine Creek, Sierra Nevada, California, preserve the most detailed and complete record of Holocene glaciation yet recovered in the region. The lakes are fed by outwash from the Palisade Glacier, the largest (˜1.3 km 2) and presumably longest-lived glacier in the range, and capture essentially all of the rock flour it produces. Distinct late-Holocene (Matthes) and late-Pleistocene (Recess Peak) moraines lie between the modern glacier and the lakes. The lakes have therefore received continuous sedimentation from the basin since the retreat of the Tioga glacier (Last Glacial Maximum) and capture rock flour related to all post-LGM advances. A total of eight long cores (up to 5.5 m sediment depth) and one short surface sediment short core preserve a coherent record of fluctuating rock flour flux to the lakes through the Holocene. Age constraints on rock flour spikes in First and Second lakes based on 31 14C-dated macrofossils indicate Holocene glaciation began ˜3200 cal yr B P, followed by a possible glacier maximum at ˜2800 cal yr B P and four distinct glacier maxima at ˜2200, ˜1600, ˜700 and ˜250-170 cal yr. B.P., the most recent maximum being the largest. Reconstruction of the equilibrium-line altitudes (ELA) associated with each distinct advance recorded in the moraines (Recess Peak, Matthes, and modern) indicates ELA depressions (relative to modern) of ˜250 m and 90 m for Recess Peak and Matthes advances, respectively. These differences represent decreases in summer temperatures of 1.7-2.8 °C (Recess Peak) and 0.2-2° (Matthes), and increases in winter precipitation of 22-34 cm snow water equivalent (s.w.e.) (Recess Peak) and 3-26 cm s.w.e. (Matthes) compared to modern conditions. Although small, these changes are significant and similar to those noted in the Cascade Range to the north, and represent a significant departure from historical climate trends in the region.

  15. Paleozoic and Mesozoic deformations in the central Sierra Nevada, California

    Science.gov (United States)

    Nokleberg, Warren J.; Kistler, Ronald Wayne

    1980-01-01

    Analysis of structural and stratigraphic data indicates that several periods of regional deformation, consisting of combined folding, faulting, cataclasis, and regional metamorphism, occurred throughout the central Sierra Nevada during Paleozoic and Mesozoic time. The oldest regional deformation occurred alono northward trends during the Devonian and Mississippian periods in most roof pendants containing lower Paleozoic metasedimentary rocks at the center and along the crest of the range. This deformation is expressed in some roof pendants by an angular unconformity separating older thrice-deformed from younger twice-deformed Paleozoic metasedimentary rocks. The first Mesozoic deformation, which consisted of uplift and erosion and was accompanied by the onset of Andean-type volcanism during the Permian and Triassic, is expressed by an angular unconformity in several roof pendants from the Saddlebag Lake to the Mount Morrison areas. This unconformity is defined by Permian and Triassic andesitic to rhyolitic metavolcanic rocks unconformably overlying more intensely deformed Pennsylvanian, Permian(?), and older metasedimentary rocks. A later regional deformation occurred during the Triassic along N. 20?_30? W. trends in Permian and Triassic metavolcanic rocks of the Saddlebag Lake and Mount Dana roof pendants, in upper Paleozoic rocks of the Pine Creek roof pendant, and in the Calaveras Formation of the western metamorphic belt; the roof pendants are crosscut by Upper Triassic granitic rocks of the Lee Vining intrusive epoch. A still later period of Early and Middle Jurassic regional deformation occurred along N. 30?-60? E. trends in upper Paleozoic rocks of the Calaveras Formation of the western metamorphic belt. A further period of deformation was the Late Jurassic Nevadan orogeny, which occurred along N. 20?_40? W. trends in Upper Jurassic rocks of the western metamorphic belt that are crosscut by Upper Jurassic granitic rocks of the Yosemite intrusive epoch

  16. Influence of anuran prey on the condition and distribution of Rana muscosa in the Sierra Nevada

    Science.gov (United States)

    K.L. Pope; K.R. Matthews

    2002-01-01

    Mountain yellow-legged frogs (Rana muscosa) at high elevations of the Sierra Nevada must obtain enough food during summer to survive 7–9 winter months when their aquatic habitats are frozen and food is presumably unavailable. Adults of R. muscosa prey on a variety of organisms, including aquatic and terrestrial invertebrates and...

  17. Sierra Leone Journal of Biomedical Research - Vol 5, No 1 (2013)

    African Journals Online (AJOL)

    Assessment of the Therapeutic Efficacy of Two Artemisinin-Based Combinations in the Treatment of Uncomplicated Falciparum Malaria among Children Under ... The Use of Mobile Electronic Devices for Public Health Data Collection and Syndromic Surveillance at the Republic Of Sierra Leone Armed Forces · EMAIL FREE ...

  18. Child mental health in Sierra Leone : A survey and exploratory qualitative study

    NARCIS (Netherlands)

    Yoder, H.N.C.; Tol, W.A.; Reis, R.; de Jong, J.T.V.M.

    2016-01-01

    Background This study complements the growing amount of research on the psychosocial impact of war on children in Sierra Leone by examining local perceptions of child mental health, formal and informal care systems, help-seeking behaviour and stigma. Methods The study combined: (1) a nationwide

  19. Climate change and fire regimes in the Sierra de Manantlan, Mexico

    Science.gov (United States)

    Brooke A. Cassell; Ernesto Alvarado; Emily Heyerdahl; Diego Perez-Salicrup; Enrique Jardel-Pelaez

    2010-01-01

    Fire has been attributed as one of the most influential factors in vegetation community and succession in the Sierra de Manantlán Biosphere Reserve in Jalisco and Colima, México. A mosaic of low, mixed and high severity fire regimes characterizes the landscape with ecosystems ranging from mesophyllous mountain forest to higher elevation pine and oak forest. Research...

  20. 75 FR 42601 - Establishment of the Sierra Pelona Valley Viticultural Area (2010R-004P)

    Science.gov (United States)

    2010-07-22

    ...; Treasury decision. SUMMARY: This Treasury decision establishes the 9.7-square mile ``Sierra Pelona Valley... purchase. DATES: Effective Date: August 23, 2010. FOR FURTHER INFORMATION CONTACT: Christina McMahon... origin of their wines to consumers and helps consumers to identify wines they may purchase. Establishment...

  1. Aspen in the Sierra Nevada: Regional conservation of a continental species

    Science.gov (United States)

    Paul C. Rogers; Wayne D. Shepperd; Dale L. Bartos

    2007-01-01

    Quaking aspen (Populus tremuloides Michx.) a common species in North America, is a minor species in the Sierra Nevada of California. However, the limited coverage of aspen in this area appears to carry a disproportionate biodiversity load: numerous species are dependent on the unique components of aspen forests habitat. Land managers in the region...

  2. Petrography of the Paleogene Volcanic Rocks of the Sierra Maestra, Southeastern Cuba

    Science.gov (United States)

    Bemis, V. L.

    2006-12-01

    This study is a petrographic analysis of over 200 specimens of the Paleogene volcanic rocks of the Sierra Maestra (Southerneastern Cuba), a key structure in the framework of the northern Caribbean plate boundary evolution. The purpose of this study is to understand the eruptive processes and the depositional environments. The volcanic sequence in the lower part of the Sierra Maestra begins with highly porphyritic pillow lavas, topped by massive tuffs and autoclastic flows. The presence of broken phenocrystals, palagonitic glass and hyaloclastites in this section of the sequence suggests that the prevalent mode of eruption was explosive. The absence of welding in the tuffs suggests that the rocks were emplaced in a deep submarine environment. Coherent flows, much less common than the massive tuffs, show evidence of autoclastic fracturing, also indicating low temperature-submarine environments. These observations support the hypothesis that the Sierra Maestra sequence may be neither part of the Great Antilles Arc of the Mesozoic nor any other fully developed volcanic arc, rather a 250 km long, submarine eruptive system of dikes, flows and sills, most likely a back-arc structure. The volcanic rocks of the upper sequence are all very fine grained, reworked volcaniclastic materials, often with the structures of distal turbidities, in mode and texture similar to those drilled on the Cayman Rise. This study suggests that the Sierra Maestra most likely records volcanism of diverse sources: a local older submarine source, and one or more distal younger sources, identifiable with the pan-Caribbean volcanic events of the Tertiary.

  3. Training for Innovation: Capacity-Building in Agricultural Research in Post-War Sierra Leone

    Science.gov (United States)

    Gboku, Matthew L. S.; Bebeley, Jenneh F.

    2016-01-01

    This paper examines how the Sierra Leone Agricultural Research Institute (SLARI) used training and development to build capacity for innovation in agricultural research following the country's civil war which ended in 2002. The Institute's training for innovation addressed different agricultural product value chains (APVCs) within the framework of…

  4. Fire weather and large fire potential in the northern Sierra Nevada

    Science.gov (United States)

    Brandon M. Collins

    2014-01-01

    Fuels, weather, and topography all contribute to observed fire behavior. Of these, weather is not only the most dynamic factor, it is the most likely to be directly influenced by climate change. In this study 40 years of daily fire weather observations from five weather stations across the northern Sierra Nevada were analyzed to investigate potential changes or trends...

  5. Role of oaks in fisher habitat quality in the Sierra Nevada mountains at multiple spatial scales

    Science.gov (United States)

    Craig M. Thompson; Kathryn Purcell; Rebecca Green; Richard. Sweitzer

    2015-01-01

    Fishers (Pekania pennanti) occur in ponderosa pine, mixed conifer, and mixed hardwood conifer habitats in the southern Sierra Nevada at elevations from approximately 1400 to 2300 m. They are a candidate species for listing under both the Federal and California Endangered Species Acts. Since 2007, the U.S. Department of Agriculture, Forest Service (...

  6. Survival of fishers in the southern Sierra Nevada region of California

    Science.gov (United States)

    Richard A. Sweitzer; Craig M. Thompson; Rebecca E. Green; Reginald H. Barrett; Kathryn L. Purcell

    2015-01-01

    Fishers in the western United States were recently proposed for listing under the U.S. Endangered Species Act because of concerns for loss of suitable habitat and evidence of a diversity of mortality risks that reduce survival. One of 2 remnant populations of fishers in California is in the southern Sierra Nevada region, where we studied them at 2 research sites in the...

  7. Hacia una Estrategia de Desarrollo para la Sierra Rural en el Perú

    NARCIS (Netherlands)

    Escobal, J.A.; Valdivia, L.

    2004-01-01

    El objetivo de este proyecto es elaborar un documento que establezca los lineamientos de una política de desarrollo para la Sierra rural en el Perú e identificar los requerimientos institucionales y de investigación complementaria que se requerirían para la construcción de programas específicos que

  8. Ethnobotany of the Sierra Nevada del Cocuy-Güicán

    NARCIS (Netherlands)

    Rodríguez, Mireia Alcántara; Angueyra, Andrea; Cleef, Antoine M.; Andel, van Tinde

    2018-01-01

    Background: The Sierra Nevada del Cocuy-Güicán in the Colombian Andes is protected as a National Natural Park since 1977 because of its fragile páramo ecosystems, extraordinary biodiversity, high plant endemism, and function as water reservoir. The vegetation on this mountain is threatened by

  9. The Role of Religion During and After the Civil War in Sierra Leone ...

    African Journals Online (AJOL)

    Civil wars in Africa are renowned for their strong religious elements, with religion being used for different purposes and in different capacities. Sierra Leone's civil war (1991-2002), known also as the “rebel war,” had significant religious dimensions. The warring factions used religion for their gain. Beyond that, Muslim and ...

  10. Socio-Ecological Factors Affecting Pregnant Women's Anemia Status in Freetown, Sierra Leone

    Science.gov (United States)

    M'Cormack, Fredanna; Drolet, Judy

    2012-01-01

    Background: Sierra Leone has high maternal mortality. Socio-ecological factors are considered contributing factors to this high mortality. Anemia is considered to be a direct cause of 4% of maternal deaths and an indirect cause of 20-40% of maternal deaths. Purpose: The current study explores socio-ecological contributing factors to the anemia…

  11. Snowmelt runoff and water yield along elevation and temperature gradients in California's southern Sierra Nevada

    Science.gov (United States)

    Carolyn T. Hunsaker; Thomas W. Whitaker; Roger C. Bales

    2012-01-01

    Differences in hydrologic response across the rain-snow transition in the southern Sierra Nevada were studied in eight headwater catchments – the Kings River Experimental Watersheds – using continuous precipitation, snowpack, and streamflow measurements. The annual runoff ratio (discharge divided by precipitation) increased about 0.1 per 300 m of mean catchment...

  12. Roadless area-intensive management tradeoffs on the Sierra National Forest, California

    Science.gov (United States)

    Robert J. Hrubes; Kent P. Connaughton; Robert W. Sassaman

    1979-01-01

    This hypothesis was tested by a linear programing model: Roadless areas on the Sierra National Forest precluded from planned future development would be candidates for wilderness designation, and the associated loss in present and future timber harvests could be offset by investing in more intensive management. The results of this simulation test suggest that levels of...

  13. Evaluating avian-habitat relationships models in mixed-conifer forests of the Sierra Nevada

    Science.gov (United States)

    Kathryn L. Purcell; Sallie J. Hejl; Terry A. Larson

    1992-01-01

    Using data from two studies in the southern and central Sierra Nevada, we compared the presence and abundance of bird species breeding in mixedconifer forests during 1978-79 and 1983-85 to predictions &om the California Wildlife Habitat Relationships (WHR) System. Twelve percent of the species observed in either study were not predicted by the WHR database to occur...

  14. Sierra Leone's Former Child Soldiers: A Longitudinal Study of Risk, Protective Factors, and Mental Health

    Science.gov (United States)

    Betancourt, Theresa S.; Brennan, Robert T.; Rubin-Smith, Julia; Fitzmaurice, Garrett M.; Gilman, Stephen E.

    2010-01-01

    Objective: To investigate the longitudinal course of internalizing and externalizing problems and adaptive/prosocial behaviors among Sierra Leonean former child soldiers and whether postconflict factors contribute to adverse or resilient mental health outcomes. Method: Male and female former child soldiers (N = 260, aged 10 to 17 years at…

  15. A national survey of rice ( Oryza sativa L.) grain quality in Sierra ...

    African Journals Online (AJOL)

    As Sierra Leone approaches self-sufficiency in rice, against a backdrop of agricultural commercialization, the dynamics of the rice grain production and consumption will increasingly be driven by the quality of grains demanded by consumers to be produced by farmers and marketed by traders in the open market.

  16. Silviculture-ecology of forest-zone hardwoods in the Sierra Nevada

    Science.gov (United States)

    Philip M. McDonald; John C. Tappeiner

    1996-01-01

    Although the principal hardwood species in the forest zone of the Sierra Nevada (California black oak, tanoak, Pacific madrone, and canyon live oak) are key components of many ecosystems, they have received comparatively little study. Currently they are underutilized and unmanaged. This paper brings together what is known on the silviculture-ecology of these species...

  17. Reconstruction versus Transformation: Post-War Education and the Struggle for Gender Equity in Sierra Leone

    Science.gov (United States)

    Maclure, Richard; Denov, Myriam

    2009-01-01

    In post-war contexts, education is widely regarded as essential not only for civic reconciliation, but also as a key force for gender equity. In Sierra Leone, however, despite enhanced educational opportunities for girls, much of the emphasis on post-war educational reconstruction is unlikely to rectify gender inequities that remain entrenched…

  18. Carbon and nutrient contents in soils from the Kings River Experimental Watersheds, Sierra Nevada Mountains, California

    Science.gov (United States)

    D.W. Johnson; C.T. Hunsaker; D.W. Glass; B.M. Rau; B.A. Roath

    2011-01-01

    Soil C and nutrient contents were estimated for eight watersheds in two sites (one high elevation, Bull, and one low elevation, Providence) in the Kings River Experimental Watersheds in the western Sierra Nevada Mountains of California. Eighty-seven quantitative pits were dug to measure soil bulk density and total rock content, while three replicate surface samples...

  19. Genotypic anomaly in ebola virus strains circulating in magazine wharf Area, Freetown, Sierra Leone, 2015

    NARCIS (Netherlands)

    S.L. Smits (Saskia); S.D. Pas (Suzan); C.B.E.M. Reusken (Chantal); B.L. Haagmans (Bart); P. Pertile; C. Cancedda; K. Dierberg; I. Wurie; A. Kamara; D. Kargbo; S.L. Caddy; A. Arias; L. Thorne; J. Lu; U. Jah; I. Goodfellow; M.P.G. Koopmans D.V.M. (Marion)

    2015-01-01

    textabstractThe Magazine Wharf area, Freetown, Sierra Leone was a focus of ongoing Ebola virus transmission from late June 2015. Viral genomes linked to this area contain a series of 13 T to C substitutions in a 150 base pair intergenic region downstream of viral protein 40 open reading frame,

  20. commercial drinking water quality and safety in bo city, sierra leone

    African Journals Online (AJOL)

    Sierra Leone Journal of Biomedical Research ... These include 6 water sources and the production facilities for 10 brands of machine-filled factory-produced water sachets as well as the 10 sources and finished samples for ... Workers at all of these facilities were also interviewed about their knowledge and practices.

  1. Sierra Nevada grasslands: interactions between livestock grazing and ecosystem structure and function

    Science.gov (United States)

    Barbara H. Allen-Diaz

    2004-01-01

    Livestock grazing plays an integral role in the grass-dominated ecosystems of the Sierra Nevada. Grazing has been asserted to influence such key ecological characteristics as water quality, net primary productivity, nutrient cycling, plant and animal diversity, wildlife habitat availability, and oak regeneration (Belsky and others 1999, Kauffmann and Krueger 1984)....

  2. Culture and environment in the Sierra de Misantla, Veracruz, Mexico: the case of Oecopetalum mexicanum

    Science.gov (United States)

    Maite Lascurain; Citlalli Lopez-Binnquist; Marla R. Emery

    2016-01-01

    We analyze the cultural and environmental dimensions of foraging the wild edible fruit cachichín (Oecopetalum mexicanum) in the Sierra de Misantla in central Veracruz, Mexico, including gathering practices, social organization, subsistence, commerce, and consumption. Gathering cachichín brings...

  3. Using epiphytic macrolichen communities for biomonitoring ammonia in forests of the greater Sierra Nevada, California

    Science.gov (United States)

    Sarah Jovan; Bruce. Mccune

    2006-01-01

    Chronic, excessive nitrogen deposition is potentially an important ecological threat to forests of the greater Sierra Nevada in California. We developed a model for ammonia bioindication, a major nitrogen pollutant in the region, using epiphytic macrolichens. We used non-metric multidimensional scaling to extract gradients in lichen community composition from surveys...

  4. Verification Tests for Sierra/SM's Reproducing Kernal Particle Method

    Energy Technology Data Exchange (ETDEWEB)

    Giffin, Brian D. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-09-01

    This report seeks to verify the proper implemention of RKPM within Sierra by comparing the results from several basic example problems excecuted with RKPM against the analytical and FEM solutions for these same problems. This report was compiled as a summer student intern project.

  5. PARTITIONING OF WATER FLUX IN A SIERRA NEVADA PONDEROSA PINE PLANTATION. (R826601)

    Science.gov (United States)

    The weather patterns of the west side of the Sierra Nevada Mountains (cold, wet winters and hot, dry summers) strongly influence how water is partitioned between transpiration and evaporation and result in a specific strategy of water use by ponderosa pine trees (Pinus pond...

  6. The Violence of Peace and the Role of Education: Insights from Sierra Leone

    Science.gov (United States)

    Novelli, Mario; Higgins, Sean

    2017-01-01

    Research on peacebuilding has mushroomed over the last decade and there is a growing interest in the role of education in supporting peacebuilding processes. This paper engages with these debates, UN peacebuilding activities and the location of education initiatives therein, through a case study of Sierra Leone. In the first part, we explore the…

  7. School Persistence in the Wake of War: Wartime Experiences, Reintegration Supports, and Dropout in Sierra Leone

    Science.gov (United States)

    Zuilkowski, Stephanie Simmons; Betancourt, Theresa S.

    2014-01-01

    This article examines the relationship of wartime experience and reintegration supports to students' risk of school dropout. It draws on longitudinal, mixed-methods data collected among children and youth in Sierra Leone from 2002 through 2008. The study finds that family financial support and perceived social support are positively associated…

  8. West nile virus anti-body surveillance in three Sierra Nevada raptors of conservation concern

    Science.gov (United States)

    J.M. Hull; J.J. Keane; L.A. Tell; H.B. Ernest

    2010-01-01

    West Nile virus (WNV) infection has caused high levels of mortality in North American hawks and owls. To investigate the extent of infection among raptors of conservation concern in the Sierra Nevada, we tested 62 Northern Goshawks (Accipiter gentilis), 209 Spotted Owls (Strix occidentalis), and 22 Great Gray Owls (...

  9. Learning Curve Characteristics for Caesarean Section Among Associate Clinicians : A Prospective Study from Sierra Leone

    NARCIS (Netherlands)

    Waalewijn, B.P.; van Duinen, A.; Koroma, A. P.; Rijken, M. J.; Elhassein, M.; Bolkan, H. A.

    2017-01-01

    Background: In response to the high maternal mortality ratio, Sierra Leone has adopted an associate clinician postgraduate surgical task-sharing training programme. Little is known about learning curve characteristics for caesarean sections among associate clinicians. The aim of this study is to

  10. Converts to human rights? Popular debate about war and justice in rural central Sierra Leone

    NARCIS (Netherlands)

    Archibald, S.; Richards, P.

    2002-01-01

    Internationally, war in Sierra Leone (1991-2002) is regarded as an instance of violent conflict driven by economic factors (attempts to control the mining of alluvial diamonds). Fieldwork (2000-01) in rural areas recovering from war suggests a very different picture. War victims and combatants from

  11. Management of rice seed during insurgency : a case study in Sierra Leone

    NARCIS (Netherlands)

    Mokuwa, G.A.

    2015-01-01

    Keywords: Technography, Oryza glaberrima, Oryza sativa, farmer hybrids, sub-optimal agriculture, farmer adaptive management, plant genetic resources, peace and extreme (wartime) conditions, local seed channels, selection for robustness, Sierra Leone, West Africa.

  12. Burn Severity and Its Impact on Soil Properties: 2016 Erskine Fire in the Southern Sierra Nevada

    Science.gov (United States)

    Haake, S.; Guo, J.; Krugh, W. C.

    2017-12-01

    Wildfire frequency in the southern Sierra Nevada has increased over the past decades. The effects of wildfires on soils can increase the frequency of slope failure and debris flow events, which pose a greater risk to people, as human populations expand into foothill and mountainous communities of the Sierra Nevada. Alterations in the physical properties of burned soils are one such effect that can catalyze slope failure and debris flow events. Moreover, the degree of a soil's physical alteration resulting from wildfire is linked to fire intensity. The 2016 Erskine fire occurred in the southern Sierra Nevada, burning 48,019 acres, resulting in soils of unburned, low, moderate, and high burn severities. In this study, the physical properties of soils with varying degrees of burn severity are explored within the 2016 Erskine fire perimeter. The results constrain the effects of burn severity on soil's physical properties. Unburned, low, moderate, and high burn severity soil samples were collected within the Erskine fire perimeter. Alterations in soils' physical properties resulting from burn severity are explored using X-ray diffractometry analysis, liquid limit, plastic limit, and shear strength tests. Preliminary results from this study will be used to assess debris flow and slope failure hazard models within burned areas of the Kern River watershed in the southern Sierra Nevada.

  13. From Typology to Topography in Clarence King's "Mountaineering in the Sierra Nevada."

    Science.gov (United States)

    Hoekzema, Loren

    The book "Mountaineering in the Sierra Nevada" by Clarence King, a late-ninteenth-century American geologist, writer, art critic, and romantic, is discussed in this paper. In the writing and revision of this book, King was attempting a metamorphosis of landscape description into popular reading as he moved from being a symbolic writer to…

  14. Developing and managing sustainable forest ecosystems for spotted owls in the Sierra Nevada

    Science.gov (United States)

    J. Verner; K.S. McKelvey

    1994-01-01

    Studies of the California spotted owl have revealed significant selection for habitats with large, old trees; relatively high basal areas of snags; and relatively high biomass in large, downed logs. Based on planning documents for national forests in the Sierra Nevada, we projected declining amounts of older-forest attributes. Region 5 has adopted measures to retain...

  15. La campagne pour un quota de femmes en politique en Sierra ...

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

    1 nov. 2011 ... Aisha Ibrahim est directrice du Gender Research and Documentation ... Comme elles travaillaient toutes à faire avancer des causes différentes, ... et qu'il n'existe pas de discrimination à l'endroit des femmes en Sierra Leone.

  16. Empowering Women through Education: Evidence from Sierra Leone. NBER Working Paper No. 18016

    Science.gov (United States)

    Mocan, Naci H.; Cannonier, Colin

    2012-01-01

    We use data from Sierra Leone where a substantial education program provided increased access to education for primary-school age children but did not benefit children who were older. We exploit the variation in access to the program generated by date of birth and the variation in resources between various districts of the country. We find that…

  17. Stratigraphy and Mesozoic–Cenozoic tectonic history of northern Sierra Los Ajos and adjacent areas, Sonora, Mexico

    Science.gov (United States)

    Page, William R.; Gray, Floyd; Iriondo, Alexander; Miggins, Daniel P.; Blodgett, Robert B.; Maldonado, Florian; Miller, Robert J.

    2010-01-01

    Geologic mapping in the northern Sierra Los Ajos reveals new stratigraphic and structural data relevant to deciphering the Mesozoic–Cenozoic tectonic evolution of the range. The northern Sierra Los Ajos is cored by Proterozoic, Cambrian, Devonian, Mississippian, and Pennsylvanian strata, equivalent respectively to the Pinal Schist, Bolsa Quartzite and Abrigo Limestone, Martin Formation, Escabrosa Limestone, and Horquilla Limestone. The Proterozoic–Paleozoic sequence is mantled by Upper Cretaceous rocks partly equivalent to the Fort Crittenden and Salero Formations in Arizona, and the Cabullona Group in Sonora, Mexico.Absence of the Upper Jurassic–Lower Cretaceous Bisbee Group below the Upper Cretaceous rocks and above the Proterozoic–Paleozoic rocks indicates that the Sierra Los Ajos was part of the Cananea high, a topographic highland during the Late Jurassic and Early Cretaceous. Deposition of Upper Cretaceous rocks directly on Paleozoic and Proterozoic rocks indicates that the Sierra Los Ajos area had subsided as part of the Laramide Cabullona basin during Late Cretaceous time. Basal beds of the Upper Cretaceous sequence are clast-supported conglomerate composed locally of basement (Paleozoic) clasts. The conglomerate represents erosion of Paleozoic basement in the Sierra Los Ajos area coincident with development of the Cabullona basin.The present-day Sierra Los Ajos reaches elevations of greater than 2600 m, and was uplifted during Tertiary basin-and-range extension. Upper Cretaceous rocks are exposed at higher elevations in the northern Sierra Los Ajos and represent an uplifted part of the inverted Cabullona basin. Tertiary uplift of the Sierra Los Ajos was largely accommodated by vertical movement along the north-to-northwest-striking Sierra Los Ajos fault zone flanking the west side of the range. This fault zone structurally controls the configuration of the headwaters of the San Pedro River basin, an important bi-national water resource in the US

  18. Scaling up family planning in Sierra Leone: A prospective cost-benefit analysis.

    Science.gov (United States)

    Keen, Sarah; Begum, Hashina; Friedman, Howard S; James, Chris D

    2017-12-01

    Family planning is commonly regarded as a highly cost-effective health intervention with wider social and economic benefits. Yet use of family planning services in Sierra Leone is currently low and 25.0% of married women have an unmet need for contraception. This study aims to estimate the costs and benefits of scaling up family planning in Sierra Leone. Using the OneHealth Tool, two scenarios of scaling up family planning coverage to currently married women in Sierra Leone over 2013-2035 were assessed and compared to a 'no-change' counterfactual. Our costing included direct costs of drugs, supplies and personnel time, programme costs and a share of health facility overhead costs. To monetise the benefits, we projected the cost savings of the government providing five essential social services - primary education, child immunisation, malaria prevention, maternal health services and improved drinking water - in the scale-up scenarios compared to the counterfactual. The total population, estimated at 6.1 million in 2013, is projected to reach 8.3 million by 2035 in the high scenario compared to a counterfactual of 9.6 million. We estimate that by 2035, there will be 1400 fewer maternal deaths and 700 fewer infant deaths in the high scenario compared to the counterfactual. Our modelling suggests that total costs of the family planning programme in Sierra Leone will increase from US$4.2 million in 2013 to US$10.6 million a year by 2035 in the high scenario. For every dollar spent on family planning, Sierra Leone is estimated to save US$2.10 in expenditure on the five selected social sector services over the period. There is a strong investment case for scaling up family planning services in Sierra Leone. The ambitious scale-up scenarios have historical precedent in other sub-Saharan African countries, but the extent to which they will be achieved depends on a commitment from both the government and donors to strengthening Sierra Leone's health system post-Ebola.

  19. Active basement uplift as seen with cosmogenic lenses: the Sierra Pie de Palo case (Western Argentina)

    Science.gov (United States)

    Siame, L. L.; Sébrier, M.; Costa, C. H.; Ahumada, E. A.; Bellier, O.

    2013-12-01

    The Andean foreland of western Argentina (28°S-33°S) corresponds to retroarc deformations associated with the ongoing flat subduction of the Nazca plate beneath the South American lithosphere, and associated with high levels of seismic activity and crustal active faulting. To improve earthquake source identification and characterization in the San Juan region, data from seismology, structural geology and quantitative geomorphology can be integrated and combined to provide a seismotectonic model. In this model, the Andean back-arc of western Argentina has to be regarded as an obliquely converging foreland where Plio-Quaternary deformations are partitioned between strike-slip and thrust motions that are localized on the E-verging, thin-skinned Argentine Precordillera, and the W-verging thick-skinned Sierras Pampeanas, respectively. In this domain, the Sierra Pie de Palo is a key structure playing a major role in the partitioning of the Plio-Quaternary deformations. Located in the westernmost Sierras Pampeanas, the Sierra Pie de Palo forms a NNE striking, 80 km-long and 35-40 km-wide, ellipsoid range that reaches elevation as high as 3162 m. This mountain range is an actively growing basement fold associated with a high level of seismic activity (e.g., the November 23, 1977, Caucete, Mw 7.4 earthquake). To evaluate the degree of tectonic activity around the Sierra Pie de Palo, we combined a detailed morphometric analysis of the topography together with in situ-produced cosmogenic 10Be concentrations measured in (1) bedrock outcrops corresponding to the exhumed erosional regional surface, (2) surface boulders abandoned on alluvial fans deformed by active faults, and (3) in fluvial sediments sampled at the outlets of selected watersheds that drains out from the Sierra Pie de Palo. All together, our results allows: (1) assessing quantitative constraints on the rate of tectonic and denudation processes that are responsible for the active growth and erosion of the Sierra

  20. Energy in Eastern Europe

    International Nuclear Information System (INIS)

    Bouma, J.W.J.

    1993-01-01

    The present energy market in Central and Eastern Europe differs strongly from the energy situation in open market economies. Compared to the European Communities, the energy market in Central and eastern Europe is characterized by its high energy intensity, high quantity of imported oil and gas from a one country (the ex-Soviet Union), the dominant role of solid fossil fuels in some countries, and environmental pollution. Expected future developments are the reduction of the energy intensity and the total energy consumption, the reduction of the industrial energy consumption, the reduction of the solid fossil fuels as well as the geographic distribution of energy import. The restructuring of the energy industry has been started by introducing a market orientated policy including privatisation and the promotion of the free play of price-making forces, accompanied by relatively small-scale investments. Recent data indicate a decrease of energy consumption due to the economic decline and the shut-down of companies in the heavy industries. (A.S.) 4 figs. 5 tabs