Flora of the San Pedro Riparian National Conservation Area, Cochise County, Arizona

Science.gov (United States)

Elizabeth Makings

2005-01-01

The flora of the San Pedro Riparian National Conservation Area (SPRNCA) consists of 618 taxa from 92 families, including a new species of Eriogonum and four new State records. The vegetation communities include Chihuahuan Desertscrub, cottonwood-willow riparian corridors, mesquite terraces, sacaton grasslands, rocky outcrops, and cienegas. Species...

Quaternary Geochronology, Paleontology, and Archaeology of the Upper San Pedro River Valley, Sonora, Mexico

Science.gov (United States)

Gaines, E. P.

2013-12-01

This poster presents the results of multi-disciplinary investigations of the preservation and extent of Quaternary fossil-bearing strata in the San Pedro River Valley in Sonora, Mexico. Geologic deposits in the portions of the San Pedro Valley in southern Arizona contain one of the best late Cenozoic fossil records known in North America and the best record of early humans and extinct mammals on the continent. The basin in the U.S. is one of the type locations for the Blancan Land Mammal Age. Hemiphilian and Irvingtonian fossils are common. Rancholabrean remains are widespread. Strata in the valley adjacent to the international border with Mexico have yielded the densest concentration of archaeological mammoth-kill sites known in the western hemisphere. Despite more than 60 years of research in the U.S., however, and the fact that over one third of the San Pedro River lies south of the international boundary, little has been known about the late Cenozoic geology of the valley in Mexico. The study reported here utilized extensive field survey, archaeological documentation, paleontological excavations, stratigraphic mapping and alluvial geochronology to determine the nature and extent of Quaternary fossil-bearing deposits in the portions of the San Pedro Valley in Sonora, Mexico. The results demonstrate that the Plio-Pleistocene fossil -bearing formations known from the valley in Arizona extend into the uppermost reaches of the valley in Mexico. Several new fossil sites were discovered that yielded the remains of Camelids, Equus, Mammuthus, and other Proboscidean species. Late Pleistocene archaeological remains were found on the surface of the surrounding uplands. AMS radiocarbon dating demonstrates the widespread preservation of middle- to late- Holocene deposits. However, the late Pleistocene deposits that contain the archaeological mammoth-kill sites in Arizona are absent in the valley in Mexico, and are now known to be restricted to relatively small portions of

The lower San Pedro River: hydrology and flow restoration for biodiversity conservation

Science.gov (United States)

Jeanmarie Haney

2005-01-01

The lower San Pedro River, downstream from Benson, is a nearly unfragmented habitat containing perennial flow reaches that support riparian vegetation that serve as “stepping stones” for migratory species. The Nature Conservancy has purchased farm properties and retired agricultural pumping along the lower river, based largely on results from hydrologic analyses...

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)

Hydrogeologic framework of the middle San Pedro watershed, southeastern Arizona

Science.gov (United States)

Dickinson, Jesse; Kennedy, Jeffrey R.; Pool, D.R.; Cordova, Jeffrey T.; Parker, John T.; Macy, J.P.; Thomas, Blakemore

2010-01-01

the upper basin fill may be more permeable than the lower basin fill, but it is generally unsaturated in the study area. The lower basin fill stratigraphic unit was delineated into three HGUs on the basis of lithologic descriptions in driller?s logs and one-dimensional (1D) electrical models of airborne transient electromagnetic (TEM) surveys. The interbedded lower basin fill (ILBF) HGU represents an upper sequence having resistivity values between 5 and 40 ohm-m identified as interbedded sand, gravel, and clay in driller?s logs. Below this upper sequence, fine-grained lower basin fill (FLBF) HGU represents a thick silt and clay sequence having resistivity values between 5 and 20 ohm-m. Within the coarse-grained lower basin fill (CLBF) HGU, which underlies the silt and clay of the FLBF, the resistivity values on logs and 1D models increase to several hundred ohm-m and are highly variable within sand and gravel layers. These sequences match distinct resistivity and lithologic layers identified by geophysical logs in the adjacent Sierra Vista subwatershed, suggesting that these sequences are laterally continuous within both the Benson and Sierra Vista subwatersheds in the Upper San Pedro Basin. A subsurface density model based on gravity data was constructed to identify the top of bedrock and structures that may affect regional groundwater flow. The subsurface density model contains six layers having uniform density values, which are assigned on the basis of geophysical logs. The density values for the layers range between 1.65 g/cm3 for unsaturated sediments near the land surface and 2.67 g/cm3 for bedrock. Major features include three subbasins within the study area, the Huachuca City subbasin, the Tombstone subbasin, and the Benson subbasin, which have no expression in surface topography or lithology. Bedrock altitudes from the subsurface density model defined top altitudes of the bedrock HGU. The HFM includes the following HGUs in ascending stratigr

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

The Upper San Pedro Partnership: A Case Study of Successful Strategies to Connect Science to Societal Needs

Science.gov (United States)

Goodrich, D. C.; Richter, H.; Varady, R.; Browning-Aiken, A.; Shuttleworth, J.

2006-12-01

The Upper San Pedro Partnership (USPP) (http://www.usppartnership.com/) has been in existence since 1998. Its purpose is to coordinate and cooperate in the implementation of comprehensive policies and projects to meet the long-term water needs of residents within the U.S. side of the basin and of the San Pedro Riparian National Conservation Area. The Partnership consists of 21 local, state, and Federal agencies, NGO's and a private water company. In 2004 it was recognized by Congress in Section 321 of Public Law 108-136 and required to make annual reports to Congress on its progress in bringing the basin water budget into balance by 2011. The Partnership is dedicated to science-based decision making. This presentation will provide an overview of the evolution of natural resources research in the binational (U.S.-Mexico) San Pedro Basin into a mature example of integrated science and decision making embodied in the USPP. It will discuss the transition through science and research for understanding; to science for addressing a need; to integrated policy development and science. At each stage the research conducted becomes more interdisciplinary, first across abiotic disciplines (hydrology, remote sensing, atmospheric science), then a merging of abiotic and biotic disciplines (adding ecology and plant physiology), and finally a further merging with the social sciences and policy and decision making for resource management. Federal, university, and NSF SAHRA Science and Technology Center research has been planned and conducted directly with the USPP. Because of the success the San Pedro has been designated as an operational HELP (Hydrology for the Environment, Life, and Policy) demonstration basin—the most advanced category. Lessons learned from this experience will be reviewed with the intent providing guidance to ensure that hydrologic and watershed research is socially and scientifically relevant and will directly address the needs of policy makers and resource

33 CFR 165.1151 - Security Zones; liquefied hazardous gas tank vessels, San Pedro Bay, California.

Science.gov (United States)

2010-07-01

... a tank vessel as liquefied petroleum gas, liquefied natural gas, or similar liquefied gas products... Eleventh Coast Guard District § 165.1151 Security Zones; liquefied hazardous gas tank vessels, San Pedro... the sea floor, within a 500 yard radius around any liquefied hazardous gas (LHG) tank vessel that is...

Effects of reintroduced beaver (Castor canadensis) on riparian bird community structure along the upper San Pedro River, southeastern Arizona and northern Sonora, Mexico

Science.gov (United States)

Johnson, Glenn E.; van Riper, Charles

2014-01-01

Chapter 1.—We measured bird abundance and richness along the upper San Pedro River in 2005 and 2006, in order to document how beavers (Castor canadensis) may act as ecosystem engineers after their reintroduction to a desert riparian area in the Southwestern United States. In areas where beavers colonized, we found higher bird abundance and richness of bird groups, such as all breeding birds, insectivorous birds, and riparian specialists, and higher relative abundance of many individual species—including several avian species of conservation concern. Chapter 2.—We conducted bird surveys in riparian areas along the upper San Pedro River in southeastern Arizona (United States) and northern Sonora (Mexico) in order to describe factors influencing bird community dynamics and the distribution and abundance of species, particularly those of conservation concern. These surveys were also used to document the effects of the ecosystem-altering activities of a recently reintroduced beavers (Castor canadensis). Chapter 3.—We reviewed Southwestern Willow Flycatcher (Empidonax traillii extimus) nest records and investigated the potential for future breeding along the upper San Pedro River in southeastern Arizona, where in July 2005 we encountered the southernmost verifiable nest attempt for the species. Continued conservation and management of the area’s riparian vegetation and surface water has potential to contribute additional breeding sites for this endangered Willow Flycatcher subspecies. Given the nest record along the upper San Pedro River and the presence of high-density breeding sites to the north, the native cottonwood-willow forests of the upper San Pedro River could become increasingly important to E. t. extimus recovery, especially considering the anticipated effect of the tamarisk leaf beetle (Diorhabda carinulata) on riparian habitat north of the region.

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

Magnetic Fabric and Paleomagnetism of the Peninsular Ranges Batholith, Sierra San Pedro M rtir, Baja California.

Science.gov (United States)

Knight, M.; Herrero-Bervera, E.; Molina-Garza, R. S.; Böhnel, H. N.

2003-12-01

We summarize results of recent paleomagnetic, structural, petrologic and magnetic fabric studies along an east-west (60 km long) transect across the Peninsular Ranges Batholith (PRB) in north-central Baja California. The transect includes both magnetite rich plutons from the western sector of the PRB, and ilmenite rich plutons from the eastern sector, as well as plutons on the eastern and western side of major tectonic discontinuities. We include results for 8 plutons, included well-characterized bodies such as San Pedro M rtir (SP), San José (SJ) and La Zarza (LZ), and relatively little known plutons such as Potrero (PO), Aguaje del Burro (AB), El Milagro (MI), and San Telmo (ST). Plutons on the western sector of the PRB yield a paleomagnetic pole at 82° N-186.4° E (A95=4.8° ). When rotated into a pre- Gulf of California position, the pole (79.2° -188.2° ) is statistically undistinguishable from the North American reference pole. In contrast, SP, SJ and PO plutons, on either side of the NW trending Main Martir Thrust yield clearly discordant direction that can only be reconciled with results for the western plutons assuming southwestward tilt of ˜ 25° for SP and greater than 45° for SJ and PO. We find strong evidence in support of tilt of the plutons from thermochronological, structural, and geobarometric data. These data will be discussed elsewhere. Here we focus on magnetic fabric data. AMS for SJ is strongly developed with high values for degree of anisotropy (P= 1.14 a 1.40), but marked east-west asymmetry that contrasts with the general symmetry of the pluton along a north-south axis. Oblate fabrics (T ˜ +0.4) with dispersed lineation directions dominate the west side of the pluton and prolate fabrics (T ˜ -0.15) with steep to vertical lineations dominate on its eastern side. This fabric is interpreted to result from magma flow. SP, a much larger pluton and sensibly asymmetric, displays high degrees of anisotropy (P ˜1.2) on its western side but

La restauración en comunidad de la iglesia de San Pedro de Atacama

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Beatriz Yuste Miguel

2017-12-01

Full Text Available En medio del gran desierto de Atacama caracterizado por una gran aridez y amplitud térmica, se ubica en un fértil oasis, la iglesia de San Pedro de Atacama. Su construcción original dataría del siglo XVI, la actual, del siglo XVIII, conserva el estilo arquitectónico barroco del ámbito sur andino. La obra está sorprendentemente adecuada a la ecología, sismicidad y materialidad del desierto. Destacan sus muros de adobe, techumbre de par y nudillo de chañar y entablado de cactus. La iglesia ha sufrido sucesivos incendios, sismos, inundaciones y sobrecargas en el techo que han ido provocando daños acumulativos graves en su estructura. El proyecto de restauración ejecutado por Fundación Altiplano buscó ajustarse a los criterios y técnicas vigentes para la conservación patrimonial de construcciones en tierra, como también a los de preservación del patrimonio y desarrollo sostenible, a través del fortalecimiento de la comunidad de San Pedro de Atacama.

Development of a shared vision for groundwater management to protect and sustain baseflows of the Upper San Pedro River, Arizona, USA

Science.gov (United States)

Richter, Holly E.; Gungle, Bruce; Lacher, Laurel J.; Turner, Dale S.; Bushman, Brooke M.

2014-01-01

Groundwater pumping along portions of the binational San Pedro River has depleted aquifer storage that supports baseflow in the San Pedro River. A consortium of 23 agencies, business interests, and non-governmental organizations pooled their collective resources to develop the scientific understanding and technical tools required to optimize the management of this complex, interconnected groundwater-surface water system. A paradigm shift occurred as stakeholders first collaboratively developed, and then later applied, several key hydrologic simulation and monitoring tools. Water resources planning and management transitioned from a traditional water budget-based approach to a more strategic and spatially-explicit optimization process. After groundwater modeling results suggested that strategic near-stream recharge could reasonably sustain baseflows at or above 2003 levels until the year 2100, even in the presence of continued groundwater development, a group of collaborators worked for four years to acquire 2250 hectares of land in key locations along 34 kilometers of the river specifically for this purpose. These actions reflect an evolved common vision that considers the multiple water demands of both humans and the riparian ecosystem associated with the San Pedro River.

Development of a Shared Vision for Groundwater Management to Protect and Sustain Baseflows of the Upper San Pedro River, Arizona, USA

Directory of Open Access Journals (Sweden)

Holly E. Richter

2014-08-01

Full Text Available Groundwater pumping along portions of the binational San Pedro River has depleted aquifer storage that supports baseflow in the San Pedro River. A consortium of 23 agencies, business interests, and non-governmental organizations pooled their collective resources to develop the scientific understanding and technical tools required to optimize the management of this complex, interconnected groundwater-surface water system. A paradigm shift occurred as stakeholders first collaboratively developed, and then later applied, several key hydrologic simulation and monitoring tools. Water resources planning and management transitioned from a traditional water budget-based approach to a more strategic and spatially-explicit optimization process. After groundwater modeling results suggested that strategic near-stream recharge could reasonably sustain baseflows at or above 2003 levels until the year 2100, even in the presence of continued groundwater development, a group of collaborators worked for four years to acquire 2250 hectares of land in key locations along 34 kilometers of the river specifically for this purpose. These actions reflect an evolved common vision that considers the multiple water demands of both humans and the riparian ecosystem associated with the San Pedro River.

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)

Environmental evidence of fossil fuel pollution in Laguna Chica de San Pedro lake sediments (Central Chile)

International Nuclear Information System (INIS)

Chirinos, L.; Rose, N.L.; Urrutia, R.; Munoz, P.; Torrejon, F.; Torres, L.; Cruces, F.; Araneda, A.; Zaror, C.

2006-01-01

This paper describes lake sediment spheroidal carbonaceous particle (SCP) profiles from Laguna Chica San Pedro, located in the Biobio Region, Chile (36 o 51' S, 73 o 05' W). The earliest presence of SCPs was found at 16 cm depth, corresponding to the 1915-1937 period, at the very onset of industrial activities in the study area. No SCPs were found at lower depths. SCP concentrations in Laguna Chica San Pedro lake sediments were directly related to local industrial activities. Moreover, no SCPs were found in Galletue lake (38 o 41' S, 71 o 17.5' W), a pristine high mountain water body used here as a reference site, suggesting that contribution from long distance atmospheric transport could be neglected, unlike published data from remote Northern Hemisphere lakes. These results are the first SCP sediment profiles from Chile, showing a direct relationship with fossil fuel consumption in the region. Cores were dated using the 21 Pb technique. - The lake sediment record of SCPs shows the record of fossil-fuel derived pollution in Central Chile

Environmental evidence of fossil fuel pollution in Laguna Chica de San Pedro lake sediments (Central Chile)

Energy Technology Data Exchange (ETDEWEB)

Chirinos, L. [Centro de Ciencias Ambientales EULA-Chile, Universidad de Concepcion, PO Box 160-C, Concepcion (Chile)]. E-mail: lchirin@pucp.edu.pe; Rose, N.L. [Environmental Change Research Centre, University College London, 26 Bedford Way, London WG1HOAP (United Kingdom); Urrutia, R. [Centro de Ciencias Ambientales EULA-Chile, Universidad de Concepcion, PO Box 160-C, Concepcion (Chile); Munoz, P. [Departamento de Biologia Marina, Universidad Catolica del Norte, Larrondo 1281, Coquimbo (Chile); Torrejon, F. [Centro de Ciencias Ambientales EULA-Chile, Universidad de Concepcion, PO Box 160-C, Concepcion (Chile); Torres, L. [Departamento de Botanica, Universidad de Concepcion, Concepcion (Chile); Cruces, F. [Departamento de Botanica, Universidad de Concepcion, Concepcion (Chile); Araneda, A. [Centro de Ciencias Ambientales EULA-Chile, Universidad de Concepcion, PO Box 160-C, Concepcion (Chile); Zaror, C. [Facultad de Ingenieria Quimica, Universidad de Concepcion, Concepcion (Chile)

2006-05-15

This paper describes lake sediment spheroidal carbonaceous particle (SCP) profiles from Laguna Chica San Pedro, located in the Biobio Region, Chile (36{sup o} 51' S, 73{sup o} 05' W). The earliest presence of SCPs was found at 16 cm depth, corresponding to the 1915-1937 period, at the very onset of industrial activities in the study area. No SCPs were found at lower depths. SCP concentrations in Laguna Chica San Pedro lake sediments were directly related to local industrial activities. Moreover, no SCPs were found in Galletue lake (38{sup o} 41' S, 71{sup o} 17.5' W), a pristine high mountain water body used here as a reference site, suggesting that contribution from long distance atmospheric transport could be neglected, unlike published data from remote Northern Hemisphere lakes. These results are the first SCP sediment profiles from Chile, showing a direct relationship with fossil fuel consumption in the region. Cores were dated using the {sup 21}Pb technique. - The lake sediment record of SCPs shows the record of fossil-fuel derived pollution in Central Chile.

Application of hydrologic tools and monitoring to support managed aquifer recharge decision making in the Upper San Pedro River, Arizona, USA

Science.gov (United States)

Lacher, Laurel J.; Turner, Dale S.; Gungle, Bruce W.; Bushman, Brooke M.; Richter, Holly E.

2014-01-01

The San Pedro River originates in Sonora, Mexico, and flows north through Arizona, USA, to its confluence with the Gila River. The 92-km Upper San Pedro River is characterized by interrupted perennial flow, and serves as a vital wildlife corridor through this semiarid to arid region. Over the past century, groundwater pumping in this bi-national basin has depleted baseflows in the river. In 2007, the United States Geological Survey published the most recent groundwater model of the basin. This model served as the basis for predictive simulations, including maps of stream flow capture due to pumping and of stream flow restoration due to managed aquifer recharge. Simulation results show that ramping up near-stream recharge, as needed, to compensate for downward pumping-related stress on the water table, could sustain baseflows in the Upper San Pedro River at or above 2003 levels until the year 2100 with less than 4.7 million cubic meters per year (MCM/yr). Wet-dry mapping of the river over a period of 15 years developed a body of empirical evidence which, when combined with the simulation tools, provided powerful technical support to decision makers struggling to manage aquifer recharge to support baseflows in the river while also accommodating the economic needs of the basin.

Application of Hydrologic Tools and Monitoring to Support Managed Aquifer Recharge Decision Making in the Upper San Pedro River, Arizona, USA

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Laurel J. Lacher

2014-11-01

Full Text Available The San Pedro River originates in Sonora, Mexico, and flows north through Arizona, USA, to its confluence with the Gila River. The 92-km Upper San Pedro River is characterized by interrupted perennial flow, and serves as a vital wildlife corridor through this semiarid to arid region. Over the past century, groundwater pumping in this bi-national basin has depleted baseflows in the river. In 2007, the United States Geological Survey published the most recent groundwater model of the basin. This model served as the basis for predictive simulations, including maps of stream flow capture due to pumping and of stream flow restoration due to managed aquifer recharge. Simulation results show that ramping up near-stream recharge, as needed, to compensate for downward pumping-related stress on the water table, could sustain baseflows in the Upper San Pedro River at or above 2003 levels until the year 2100 with less than 4.7 million cubic meters per year (MCM/yr. Wet-dry mapping of the river over a period of 15 years developed a body of empirical evidence which, when combined with the simulation tools, provided powerful technical support to decision makers struggling to manage aquifer recharge to support baseflows in the river while also accommodating the economic needs of the basin.

Transient electromagnetic study of basin fill sediments in the Upper San Pedro Basin, Mexico

Science.gov (United States)

Bultman, M.W.; Gray, F.

2011-01-01

The Upper San Pedro River Basin in Mexico and the United States is an important riparian corridor that is coming under increasing pressure from growing populations and the associated increase in groundwater withdrawal. Several studies have produced three-dimensional maps of the basin fill sediments in the US portion of the basin but little work has been done in the Mexican portion of the basin. Here, the results of a ground-based transient electromagnetic (TEM) survey in the Upper San Pedro Basin, Mexico are presented. These basin fill sediments are characterized by a 10-40 m deep unsaturated surficial zone which is composed primarily of sands and gravels. In the central portion of the basin this unsaturated zone is usually underlain by a shallow clay layer 20-50 m thick. Beneath this may be more clay, as is usually the case near the San Pedro River, or interbedded sand, silt, and clay to a depth of 200-250 m. As you move away from the river, the upper clay layer disappears and the amount of sand in the sediments increases. At 1-2 km away from the river, sands can occupy up to 50% of the upper 200-250 m of the sediment fill. Below this, clays are always present except where bedrock highs are observed. This lower clay layer begins at a depth of about 200 m in the central portion of the basin (250 m or more at distances greater than 1-2 km from the river) and extends to the bottom of most profiles to depths of 400 m. While the depth of the top of this lower clay layer is probably accurate, its thickness observed in the models may be overestimated due to the relatively low magnetic moment of the TEM system used in this study. The inversion routine used for interpretation is based on a one-dimensional geologic model. This is a layer based model that is isotropic in both the x and y directions. Several survey soundings did not meet this requirement which invalidates the inversion process and the resulting interpretation at these locations. The results from these

San Pedro de la Paz: elementos del patrimonio natural estructurantes del paisaje urbano, seccional El Venado

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Leonel Pérez Bustamante

2003-09-01

Full Text Available El proyecto Plan Seccional El Venado se circunscribe en la intención de desarrollar un proyecto inmobiliario de gran extensión territorial en las mesetas de la Cordillera de Nahuelbuta, comuna de San Pedro de la Paz, en el denominado fundo El Venado.

Examining the life history of an individual from Solcor 3, San Pedro de Atacama: Combining bioarchaeology and archaeological chemistry

International Nuclear Information System (INIS)

Torres-Rouff, Cristina; Knudson, Kelly J

2007-01-01

Detailed life history information using multiple lines of evidence including the identification of geographic origins, health, and body use indicators, can be used to elucidate the complex process of acculturation in the San Pedro de Atacama oases of northern Chile during the Middle Horizon. This paper presents the results of bioarchaeological and archaeological chemical analyses of the skeletal remains of an adult male (tomb 50, catalog number 1948) from the cemetery of Solcor 3 (ca. AD 500-900). Strontium isotope ratios in human tooth enamel reveal information about where a person lived during their childhood, when enamel was being formed. Individual 1948 showed strontium isotope ratios decidedly outside the range of the local San Pedro de Atacama strontium isotope signature. Given these data implying that individual 1948 was originally from elsewhere, an examination of his health status, social role, and mortuary context provides insight into the treatment of foreigners in San Pedro de Atacama. Our data support the argument that individual 1948's foreign birth did not hinder his later assimilation into Atacameno society. He was buried in a local cemetery with a typical mortuary assemblage for a male of this time and no strong evidence of possible foreign origin. Skeletal indicators of diet and activity patterns do not distinguish individual 1948 from the local population, suggesting that his lifestyle was similar to that of other Atacamenos. Therefore, our analyses suggest that individual 1948's acculturation into Atacameno society during his adult life was nearly complete and he retained little to no indication of his probable foreign birth

Investigating Historic Parcel Changes to Understand Land Use Trends: A Methodology and Application for the San Pedro River Watershed

Science.gov (United States)

Long-term land use and land cover change, and the associated impacts, pose critical challenges to sustaining healthy communities and ecosystems. In this study, a methodology was developed to use parcel data to evaluate land use trends in southeast Arizona’s San Pedro River Water...

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 ...

Thermal Performance of Traditional and New Concept Houses in the Ancient Village of San Pedro De Atacama and Surroundings

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Massimo Palme

2014-05-01

Full Text Available Earth, wood and others traditional materials are still used in house constructions in many regions of the world, especially in the Andes. San Pedro de Atacama, for example, is a small town where earth blocks (adobes and rammed earth (tapial are important ways to construct, an art passed on through generations. Energy properties of earth are very interesting: thermal conductivity is low; heat storage capacity is high; color is variable and can be used to absorb or to reject solar radiation. However, nowadays the government social dwelling service is proposing a different type of construction, which does not maintain any relation with the tradition. This paper presents simulation studies and monitoring of four different San Pedro houses, constructed by using different techniques and materials. Results can be used to discuss the thermal performance needed in desert climate and the reliability of social dwelling service houses, under construction at this time in the town.

San Pedro de la Mata (Sonseca, Toledo. Building and decorating an early medieval stone church

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Mª de los Ángeles Utrero Agudo

2016-11-01

Full Text Available This work aims to offer those results obtained by means of the archaeological, stylistic and geological analysis of the church of San Pedro de La Mata, of its building and decorative materials and of its quarries. Combining these studies (and methodologies has made possible to identify the original form of the church, to pinpoint the origin of the materials and to characterize thus the skills of the workshops responsible for its construction and decoration.

The Cure Violence model: violence reduction in San Pedro Sula (Honduras

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Charles Ransford

2017-09-01

Full Text Available Developed in the United States, the Cure Violence model is a programme of epidemic control that reduces violence through changes to norms and behaviour. This article primarily examines the issue of violence in Honduras and, in particular, in San Pedro Sula which was for years the city with the highest homicide rates in the world. To tackle this situation, in 2013 an adapted version of the programme began to be implemented in certain areas of the city. After describing the adaptation of the model to the context of the Honduran city, its results are analysed in two periods of 2014 and 2015 (compared to 2013 and 2014, respectively: a significant reduction in shootings and a minor fall in the homicide figures stand out.

Inorganic pigment study of the San Pedro Gonzalez Telmo Sibyls using total reflection X-ray fluorescence

International Nuclear Information System (INIS)

Vazquez, Cristina; Custo, Graciela; Barrio, Nestor; Burucua, Jose; Boeykens, Susana; Marte, Fernando

2010-01-01

This article describes the study carried out on a series of oil paintings on canvas from the eighteenth century that were restored at Centro de Produccion e Investigacion en Restauracion y Conservacion Artistica y Bibliografica - Tarea (CEIRCAB-Tarea), Buenos Aires, Argentina: the San Pedro Gonzalez Telmo Sibyls. Experimental study was undertaken to identify inorganic pigments and the technique used in their confection; and, in this way, try to add information about their local origin. Therefore special emphasis was put to infer technologies used in the manufacturing of these paintings. Elemental analysis was performed by total reflection X-ray fluorescence spectrometry (TXRF) and complemented by optical and polarized light microscopy. Microsampling was carefully done over areas of the paintings which were damaged and where a small additional loss will not be noticed. This investigation has shown that a variety of pigments were used, namely earth pigments (red and yellow ochres), white lead, vermilion, etc., and they were used either pure or in mixtures. This characterization helped conservators in their decisions regarding a better understanding of the deterioration processes. In addition, this research about the material composition allowed the art historians and restorers the possibility to obtain information about where, when or by whom The San Pedro Gonzalez Telmo Sibyls may have been painted.

Inorganic pigment study of the San Pedro Gonzalez Telmo Sibyls using total reflection X-ray fluorescence

Energy Technology Data Exchange (ETDEWEB)

Vazquez, Cristina, E-mail: vazquez@cnea.gov.a [Universidad de Buenos Aires, Facultad de Ingenieria, Paseo Colon 850. C1063ACU, Buenos Aires (Argentina); Comision Nacional de Energia Atomica, Gerencia Quimica, Av. Gral Paz 1499, B1650KNA, San Martin (Argentina); Custo, Graciela, E-mail: custo@cnea.gov.a [Comision Nacional de Energia Atomica, Gerencia Quimica, Av. Gral Paz 1499, B1650KNA, San Martin (Argentina); Barrio, Nestor, E-mail: nbarrio@unsam.edu.a [CEIRCAB-TAREA, Universidad Nacional de San Martin (UNSAM), Escuela de Humanidades, Campus Miguelete, 25 de Mayo y Francia, B1650KNA, San Martin (Argentina); Burucua, Jose, E-mail: gburucua@unsam.edu.a [CEIRCAB-TAREA, Universidad Nacional de San Martin (UNSAM), Escuela de Humanidades, Campus Miguelete, 25 de Mayo y Francia, B1650KNA, San Martin (Argentina); Boeykens, Susana [Universidad de Buenos Aires, Facultad de Ingenieria, Paseo Colon 850. C1063ACU, Buenos Aires (Argentina); Marte, Fernando, E-mail: fmarte@unsam.edu.a [CEIRCAB-TAREA, Universidad Nacional de San Martin (UNSAM), Escuela de Humanidades, Campus Miguelete, 25 de Mayo y Francia, B1650KNA, San Martin (Argentina)

2010-09-15

This article describes the study carried out on a series of oil paintings on canvas from the eighteenth century that were restored at Centro de Produccion e Investigacion en Restauracion y Conservacion Artistica y Bibliografica - Tarea (CEIRCAB-Tarea), Buenos Aires, Argentina: the San Pedro Gonzalez Telmo Sibyls. Experimental study was undertaken to identify inorganic pigments and the technique used in their confection; and, in this way, try to add information about their local origin. Therefore special emphasis was put to infer technologies used in the manufacturing of these paintings. Elemental analysis was performed by total reflection X-ray fluorescence spectrometry (TXRF) and complemented by optical and polarized light microscopy. Microsampling was carefully done over areas of the paintings which were damaged and where a small additional loss will not be noticed. This investigation has shown that a variety of pigments were used, namely earth pigments (red and yellow ochres), white lead, vermilion, etc., and they were used either pure or in mixtures. This characterization helped conservators in their decisions regarding a better understanding of the deterioration processes. In addition, this research about the material composition allowed the art historians and restorers the possibility to obtain information about where, when or by whom The San Pedro Gonzalez Telmo Sibyls may have been painted.

The geological setting of Santa Monica and San Pedro Basins, California Continental Borderland

Science.gov (United States)

Gorsline, D. S.

The California Continental Borderland's present configuration dates from about 4 to 5 × 10 6 years before present (BP) and is the most recent of several configuration of the southern California margin that have evolved after the North America plate over-rode the East Pacific Rise about 30 × 10 6 years ago. The present morphology is a series of two to three northwest-southeast trending rows of depressions separated by banks and insular ridges. Two inner basins, Santa Monica and San Pedro, have been the site for the California Basin Study (CaBs), funded by the US Department of Energy. The Santa Monica and San Pedro Basins contain post-Miocene sediment thicknesses of about 2.5 and 1.5 km respectively. During the Holocene (past 10,000 years) about 10-12m have accumulated. The sediment entered the basin by one or a combination of processes including particle infall (mainly as bioaggregates) from surface waters, from nepheloid plumes (surface, mid-depth and near-bottom), from turbidity currents, mass movements, and to a very minor degree direct precipitation. In Santa Monica Basin, during the last century, particle infall nepheloid plume transport have been the most common processes. The former process has been dominant in thecentral basin at water depths from 900-945m, where characteristic silt-clay is found with a typical mean particle diameter of about 0.0006mm ( φ standard deviation = 2; φ skewness near zero). Kurtosis is typically 2 (platykurtic); these values indicate broad, near-log normal particle size distributions. The calcium carbonate content averages about 10% and organic carbon about 4%. Surficial sediment bulk densities are 1.1-1.2 and accumulation rates range from 16-30mg cm -2Yr 1 in this central fine deposit. Bottom water oxygen contents are at or below 0.1 ml 1 -1 so that bioturbation is inhibited, thus preserving the primary sedimentary stratification. There appear to be annual varves, but the laminae couplets are not simple wet-dry season pairs

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.

Heavy metals in water of the San Pedro River in Chihuahua, Mexico and its potential health risk

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Melida Gutierrez

2008-06-01

Full Text Available The objective of this study was to determine the seasonal and downstream water quality variations of the San Pedro River in Chihuahua, Mexico. Water samples were collected monthly from October 2005 to August 2006 in triplicate, totaling 165 water samples. The five sampling locations were: below the Francisco I. Madero dam (LP; between Rosales and Delicias (RD; Meoqui (M; El Torreon (ET, and Julimes (LJ. The levels of As, Be, Ca, Cd, Co, Cu, Cr, Fe, Li, Mg, Mn, Mo, Ni, Pb, Sb, Se, Sr, Ti, Ta, V and Zn were measured using an Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES Perkin Elmer 2100. In addition, temperature, pH, electrical conductivity and total and fecal coliformes were determined. The statistical analysis considered a factorial treatment design; where factor A was the location point and factor B was sampling date. In addition, a multivariate technique looking for principal components was performed. The results indicated that some samples exceeded Mexican standards for As, Be, Ca, Cd, Co, Cr, Fe, Mn, Ni, Pb, Sb, Se, Sr and Zn. The As level must be considered for a red flag to the communities along the Rio San Pedro because both the monthly average level (0.10 mg L-1 and location (0.10 mg L-1 exceeded the Mexican and International norms. The multivariate analysis showed a predominant aggregation at the LP location, meaning that there was a predominance of As, Sr, Fe and Li. At the rest of the locations the elements did not present a tendency for aggregation. Statistics applied to sampling month showed that December, January, March and April were aggregated in a negative quadrant of component 1 indicating a predominance of V, Ni, Be, Fe and As. Overall, the results confirmed that this stretch of the San Pedro River is contaminated with heavy metals and other contaminants that might affect human health as well as the health of the ecosystem.

Heavy metals in water of the San Pedro River in Chihuahua, Mexico and its potential health risk

Science.gov (United States)

Gutiérrez, Roberto L.; Rubio-Arias, Hector; Quintana, Ray; Ortega, Juan Angel; Gutierrez, Melida

2008-01-01

The objective of this study was to determine the seasonal and downstream water quality variations of the San Pedro River in Chihuahua, Mexico. Water samples were collected monthly from October 2005 to August 2006 in triplicate, totaling 165 water samples. The five sampling locations were: below the Francisco I. Madero dam (LP); between Rosales and Delicias (RD); Meoqui (M); El Torreon (ET), and Julimes (LJ). The levels of As, Be, Ca, Cd, Co, Cu, Cr, Fe, Li, Mg, Mn, Mo, Ni, Pb, Sb, Se, Sr, Ti, Ta, V and Zn were measured using an Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) Perkin Elmer 2100. In addition, temperature, pH, electrical conductivity and total and fecal coliformes were determined. The statistical analysis considered a factorial treatment design; where factor A was the location point and factor B was sampling date. In addition, a multivariate technique looking for principal components was performed. The results indicated that some samples exceeded Mexican standards for As, Be, Ca, Cd, Co, Cr, Fe, Mn, Ni, Pb, Sb, Se, Sr and Zn. The As level must be considered for a red flag to the communities along the Rio San Pedro because both the monthly average level (0.10 mg L−1) and location (0.10 mg L−1) exceeded the Mexican and International norms. The multivariate analysis showed a predominant aggregation at the LP location, meaning that there was a predominance of As, Sr, Fe and Li. At the rest of the locations the elements did not present a tendency for aggregation. Statistics applied to sampling month showed that December, January, March and April were aggregated in a negative quadrant of component 1 indicating a predominance of V, Ni, Be, Fe and As. Overall, the results confirmed that this stretch of the San Pedro River is contaminated with heavy metals and other contaminants that might affect human health as well as the health of the ecosystem. PMID:18678922

INTERVENCIÓN ARQUEOMAGNÉTICA DEL HORNO DE LA HACIENDA SAN PEDRO CHOLUL (MÉRIDA, YUCATÁN (Archaeomagnetic Dating of a Kiln from the San Pedro Cholul Hacienda (Merida, Yucatan

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Héctor Hernández Álvarez

2017-12-01

Full Text Available En el presente trabajo se reportan los resultados de un estudio arqueomagnético realizado en un horno para la quema de cal encontrado en la hacienda henequenera de San Pedro Cholul, localizada al noroeste de la ciudad de Mérida en el estado de Yucatán, México. La finalidad del estudio es establecer una cronología confiable y analizar las posibles consecuencias sociales, económicas y ambientales de este asentamiento, el cual existió posiblemente desde mediados del siglo XIX hasta los años sesenta del siglo pasado. Para la determinación de la cronología, se utilizó el método de datación arqueomagnética a estructuras pirotecnológicas de estas características. Las muestras estudiadas provienen de rocas y ladrillos del horno y arrojan una edad entre 1835 y 1896, la cual concuerda con la información histórica disponible y se interpreta como el periodo de producción más importante de la región. ENGLISH: This paper presents the results of an archaeomagnetic study carried out on a lime burning kiln at the henequen hacienda of San Pedro Cholul (northwest of the city of Merida in the state of Yucatan, Mexico. The purpose of the study is to establish a reliable chronology and to estimate the possible social, economic and environmental implications of this settlement, which may have existed from the middle of the nineteenth century until the 1960s. Archaeomagnetic dating was carried out on samples obtained from rocks and bricks from the kiln and give an age between 1835 and 1896. This date range agrees with available historical information and is interpreted as the most important production period of the region.

Study of plaster finishes on San Pedro de los Francos church at Calatayud

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Sánchez de Rojas, Mª I

2007-06-01

Full Text Available This study of the plaster finishes on San Pedro de los Francos Church at Calatayud revealed, firstly, the stratigraphic sequence based on the interpretation of the bonding interfaces; and secondly, the evolution of placement techniques from mudéjar style textured and painted false stonework (15th century to the smooth plastering and paint typical of later phases. Finally, scanning electron microscope (SEM, energy dispersive X-ray microanalysis (EDX and X-ray diffraction (XRD studies showed that gypsum and anhydrite are the main components of both binder and aggregate in these mortars. In other words, they constitute traditional multiphase plasters whose coarser particles or aggregate were a byproduct of the artisanal manufacturing process.El estudio de los enlucidos de la iglesia de San Pedro de los Francos de Calatayud ha permitido demostrar, en primer lugar, la secuencia estratigráfica mediante la lectura de la interfase de adherencia; en segundo lugar, la evolución de las técnicas de aplicación, desde el enlucido mudéjar, un fingido de piedra agramilado y pintado (siglo XV, hasta los enlucidos lisos y pinturas aplicados posteriormente. Y, finalmente, a través de los estudios de microscopía electrónica de barrido (SEM, microanálisis por energía dispersiva de rayos X (EDX y de difracción de rayos X (DRX, se ha determinado que son morteros en los que tanto el conglomerante como el árido son yeso y anhidrita, que correspondería a un yeso tradicional multifase, cuyos granos más gruesos analizados como áridos proceden del producto obtenido artesanalmente.

Gravity data from the San Pedro River Basin, Cochise County, Arizona

Science.gov (United States)

Kennedy, Jeffrey R.; Winester, Daniel

2011-01-01

The U.S. Geological Survey, Arizona Water Science Center in cooperation with the National Oceanic and Atmospheric Administration, National Geodetic Survey has collected relative and absolute gravity data at 321 stations in the San Pedro River Basin of southeastern Arizona since 2000. Data are of three types: observed gravity values and associated free-air, simple Bouguer, and complete Bouguer anomaly values, useful for subsurface-density modeling; high-precision relative-gravity surveys repeated over time, useful for aquifer-storage-change monitoring; and absolute-gravity values, useful as base stations for relative-gravity surveys and for monitoring gravity change over time. The data are compiled, without interpretation, in three spreadsheet files. Gravity values, GPS locations, and driving directions for absolute-gravity base stations are presented as National Geodetic Survey site descriptions.

AN ACCURACY ASSESSMENT OF 1997 LANDSAT THEMATIC MAPPER DERIVED LAND COVER FOR THE UPPER SAN PEDRO WATERSHED (U.S./MEXICO)

Science.gov (United States)

High-Resolution airborne color video data were used to evaluate the accuracy of a land cover map of the upper San Pedro River watershed, derived from June 1997 Landsat Thematic Mapper data. The land cover map was interpreted and generated by Instituto del Medio Ambiente y el Bes...

El Duque de San Pedro de Galatino y la azucarera de Láchar

OpenAIRE

Francisco José Sánchez Sánchez

2015-01-01

El objetivo del trabajo ha sido el estudio de la fábrica azucarera, construida en el año 1890 en la localidad de Láchar (Granada), denominada “Fábrica Conde de Benalúa”, propiedad de Julio Quesada Cañaveral y Piédrola, Señor de Láchar, Conde de Benalúa y de lasVillas, Duque de San Pedro de Galatino y Grande de España. La metodología ha sido posible gracias a la búsqueda de la documentación en los archivos públicos, nacionales, provinciales, locales y privados. Las conclusiones que presentamos...

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

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Paula Andrea Martínez Chaves

2010-01-01

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

Las hermanas de los pobres de San Pedro Claver

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Rafael Méndez Buendía

1982-01-01

Full Text Available "El ser humano actúa, siente y se desenvuelve siempre de acuerdo con lo que él imagina ser verdad acerca de sí mismo y del ambiente que le rodea". Esta es la ley básica del pensamiento humano y este es el modo de que estamos hechos ya que la imaginación desempeña en nuestras vidas un papel mucho más importante de lo que nos podemos imaginar. Extraña al parecer la manera de iniciar este ensayo monográfico de una ilustre congregación religiosa que nace en Barranquilla, "la puerta de oro de Colombia" y "la sultana de los pies desnudos", allá por febrero de 1912, bajo el título de "Hermanas de los Pobres de San Pedro Claver", nombre sugerido a la fundadora por el obispo de Cartagena, monseñor Brioschi, para honrar en forma tal, según sus palabras, al "modelo de virtudes religiosas y al gran apóstol de la caridad cristiana".

Quantifying and valuing ecosystem services: An application of ARIES to the San Pedro River basin, USA

Science.gov (United States)

Bagstad, Kenneth J.; Semmens, Darius J.; Villa, Ferdinando; Johnson, Gary

2014-01-01

A large body of research exists that identifies and values ecosystem services - the benefits that ecosystems provide to humans (MA, 2005) - and their underlying ecological processes. However, the development of software decision support tools that integrate ecology, economics and geography that can be independently used within the public, private, academic and NGO sectors is a more recent phenomenon (Ruhl et al., 2007; Daily et al., 2009). Spurred by growing demand for more sophisticated analysis of the social and economic consequences of land management decisions, the US Department of Interior - Bureau of Land Management (BLM) launched a pilot project with the US Geological Survey (USGS) to assess the usefulness and feasibility of ecosystem service assessment and valuation tools to provide inputs to decision-making. The project analysed ecosystem services in the US portion of the San Pedro River watershed, which includes the BLM-managed San Pedro Riparian National Conservation Area (SPRNCA), to improve the understanding of complex social and ecological relationships that transcend administrative divisions. The BLM manages some 99 million hectares, primarily in the western United States, and 283 million hectares of sub-surface mineral estate. BLM's multiple-use mission requires that it appropriately balance non-extractive uses such as habitat conservation, recreation and archaeological heritage protection and the extractive use of resources such as timber, oil and gas, coal, uranium, and other minerals.

Violencia rural intercomunitaria no sueste de Galicia. Un caso concreto: Moialde contra San Pedro de Pousada

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Alonso Gayoso, Emilio

2015-12-01

Full Text Available The objective of this work is make an approximation to the research about the rural violence across the analysis of the conflict between two villages in the southeast of Galicia (Santa Maria de Moialde and San Pedro de Pousada, by economic and social causes, means of a cualitative research and the interview of several witness, with the design to determinate the most probable causes of the conflict between the communities, in economic and social nature. With the obtained dates, we reach to the conclusion that the most part of the rural conflict in the studied ambit begin in the competition to access to the single women and to the comunal goods, needful to the daily survival.El objetivo de este trabajo es realizar una aproximación al estudio de la violencia rural a través del análisis de los conflictos entre dos aldeas del sudeste de Galicia (Santa María de Moialde y San Pedro de Pousada, tanto por motivos económicos como sociales, mediante una investigación cualitativa y la entrevista de varios testigos, con la intención de determinar las causas más probables de los conflictos entre comunidades, tanto de naturaleza social como económica. A partir de los datos obtenidos se llega a la conclusión de que la mayoría de los conflictos rurales en el ámbito estudiado se originan en la competencia por las mujeres solteras y por el acceso a los bienes comunales, necesarios para la supervivencia cotidiana. [gl] O obxectivo deste traballo é facer unha aproximación ao estudo da violencia rural a través da análise dos conflitos entre dúas aldeas do sueste de Galicia (Santa María de Moialde e San Pedro de Pousada, tanto por motivos económicos como sociais, mediante unha investigación cualitativa e a entrevista de varias testemuñas, coa intención de determinar as causas máis probables dos conflitos entre comunidades, tanto de natureza social como económica. A partir dos datos obtidos chégase á conclusión de que a maioría dos conflitos

La fiesta xita: patrimonio biocultural mazahua de San Pedro el Alto, México

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Alicia Y. Vásquez González

2016-01-01

Full Text Available Ante la crisis ambiental y de la modernidad, se propone conservar la riqueza cultural y biológica de la humanidad como patrimonio. Así, se valora y revalora el patrimonio vivo, como es la relación entre culturas y biodiversidad, que se manifiestan en paisajes y territorios de los pueblos originarios. Se propone la fiesta xita (viejos como patrimonio biocultural de la milpa mazahua. El estudio etnográfico se realizó en San Pedro el Alto, México. La fiesta xita es parte del patrimonio biocultural mazahua, mediante la cual se entretejen agrobiodiversidad y cultura, lo que permite que los mazahuas mantengan y desarrollen sus actividades sociales y culturales que han sido heredadas de generación en generación.

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...

FACTORES ASOCIADOS A LA CONDUCTA DE LACTANCIA MATERNA EXCLUSIVA HASTA EL SEXTO MES DE LA VIDA EN NIÑOS Y NIÑAS DE LA COMUNA DE SAN PEDRO DE LA PAZ

OpenAIRE

ROMERO GARCIA, STEPHANIE

2012-01-01

Introducción: La comuna de San Pedro de la Paz posee una baja prevalencia de lactancia materna exclusiva en todos sus períodos reportados. Objetivo: Identificar los factores asociados a la conducta de lactancia materna exclusiva en niños/as hasta el octavo mes de vida, que estén bajo control en la red asistencial de la comuna de San Pedro de la Paz. Material y Métodos: Estudio descriptivo transversal mediante aplicación de encuesta en domicilio a 253 madres de niños/as de 1 a 8 meses de vi...

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...

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

“La logia dominicana Aurora Nº 82 de San Pedro de Macoris (1889-1923”

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José Antonio Ferrer Benimeli

2011-01-01

Full Text Available La logia Aurora Nº 82 de San Pedro de Macoris en Santo Domingo afrontó el contexto dominicano e internacional auspiciada por la obediencia española del Gran Oriente Español desde 1889 hasta 1923. Este trabajo traza la historia general de este taller en dicho periodo aportando respuestas a los siguientes interrogantes: ¿Cómo actuaron los masones de este taller en dicho contexto? ¿Cuál fue su relación con las obediencias dominicanas? ¿Cuáles fueron las principales actuaciones oficiales entre esta logia y las autoridades masónicas españolas? ¿Cuáles fueron los principales conflictos internos de la logia?

Ictiofauna de los humedales del río San Pedro, Balancán, Tabasco, México

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Alfonso Castillo-Domínguez

2011-06-01

Full Text Available Los humedales de San Pedro sostienen redes tróficas del sistema fluvial debido a la alta disponibilidad de hábitats y a sus variaciones espacio-temporales. En esta investigación se estudió la composición, densidad y biomasa de la ictiofauna de los humedales; se capturaron 1 049 organismos de 25 especies, dos son exóticas: Oreochromis niloticus y Parachromis managuense. Con 23 especies capturadas en el sitio I, 17 en el II y 14 en el III. En la época de secas se obtuvo mayor riqueza con 21 especies, lluvias con 17 y cinco en nortes. La mayor densidad se mostró en el sitio II (0.23ind./m², seguido de los sitios I y III (0.12, 0.12ind./m². La mayor biomasa fue en secas (8.30g/m², seguida de lluvias (2.1g/m² y por último nortes (0.01g/m². La mayor densidad se mostró en secas (0.43ind./m² y la mínima en nortes (0.023ind./m². Las especies dominantes en densidad según el diagrama Olmstead-Tukey fueron: Petenia splendida, Vieja heterospila, Vieja synspila, Dorosoma petenense y Astyanax aeneus. Por lo tanto, existieron diferencias significativas en los parámetros ecológicos y ambientales. Al considerar la variación en la riqueza podemos concluir que los humedales del río San Pedro, es un sistema donde la composición de la ictiofauna responde a las fluctuaciones espaciales y temporales.

Mechanical conceptual design of 6.5 meter telescope: Telescopio San Pedro Mártir (TSPM)

Science.gov (United States)

Uribe, Jorge; Bringas, Vicente; Reyes, Noe; Tovar, Carlos; López, Aldo; Caballero, Xóchitl; Martínez, César; Toledo, Gengis; Lee, William; Carramiñana, Alberto; González, Jesús; Richer, Michael; Sánchez, Beatriz; Lucero, Diana; Manuel, Rogelio; Rubio, Saúl; González, Germán.; Hernández, Obed; Segura, José; Macias, Eduardo; García, Mary; Lazaro, José; Rosales, Fabián.; del Llano, Luis

2016-07-01

Telescopio San Pedro Mártir (TSPM) project intends to build a 6.5 meters telescope with alt-azimuth design, currently at the conceptual design. The project is an association between Instituto de Astronomía de la Universidad Nacional Autónoma de México (IA-UNAM) and the Instituto Nacional de Astrofísica, Óptica Electrónica (INAOE) in partnership with department of Astronomy and Steward Observatory of University of Arizona and Smithsonian Astrophysical Observatory of Harvard University. Conceptual design of the telescope is lead and developed by the Centro de Ingeniería y Desarrollo Industrial (CIDESI). An overview of the feasibility study and the structural conceptual design are summarized in this paper. The telescope concept is based on telescopes already commissioned such as MMT and the Baade and Clay Magellan telescopes, building up on these proven concepts. The main differences relative to the Magellan pair are; the elevation axis is located 1 meter above the primary mirror vertex, allowing for a similar field of view at the Cassegrain and both Nasmyth focal stations; instead of using a vane ends to position the secondary mirror TSPM considers an Steward platform like MMT; finally TSPM has a larger floor distance to m1 cell than Magellans and MMT. Initially TSPM will operate with an f/5 Cassegrain station, but the design considers further Nasmyth configurations from a Cassegrain f/5 up to a Gregorian f/11. The telescope design includes 7 focal stations: 1 Cassegrain; 2 Nasmyth; and 4 folded-Cassegrain. The telescope will be designed and manufactured in Mexico, will be design in Queretaro by CIDESI and built between Queretaro and Michoacán manufacturing facilities; it will be preassembled in these facilities and disassembled to send it to the San Pedro Mártir Observatory for final integration. The azimuth and altitude structure is planned to be constructed in modules and transported by truck and shipped to Ensenada and finally to the OAN where is going

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 ...

Cenobios leoneses altomedievales ante la europeización: San Pedro y San Pablo de Montes, Santiago y San Martín de Peñalba y San Miguel de Escalada

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Martínez Tejera, Artemio Manuel

2002-06-01

Full Text Available The following paper analyses the behaviour of three of the most important monastic communities in the reing of Asturias-Leon for the ninth and then centuries. During this period we witness the implementation of a new ordo, or liturgical ritual that replaces the Hispanic one, strongly established in the Territorium. The liturgical adaptation produces tension and conflicts among the members of different monastic communities, and even between the Episcopate and the monarchy - being King Alfonso VI. In some of the monasteries, the arrival of the new ordo causes the adaptation of the liturgical space, with subsequent changes in liturgical furniture.

El presente estudio pretende analizar el comportamiento de tres de las más importantes comunidades monásticas astur-leonesas de los siglos IX y X (San Pedro y San Pablo de Montes, Santiago y San Martín de Peñalba y San Miguel de Escalada ante la recepción e implantación de aquel nuevo ordo o ritual litúrgico que vino a sustituir al Hispánico, fuertemente asentado en el territorium. Readaptación litúrgica que, con distinta intensidad, producirá tensiones y enfrentamientos entre los miembros de las distintas comunidades monásticas, incluso entre el episcopado y la monarquía (personificada en la figura de Alfonso VI, pero no únicamente. En alguno de estos monasterios la llegada del nuevo ordo supondrá, además, la readaptación de su espacio litúrgico, lo que trajo consigo significativas modificaciones constructivas.

Nuevas esculturas de Pedro de Mena en Córdoba y Estepa

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García Luque, Manuel

2016-06-01

Full Text Available This article focuses on two new additions to the oeuvre of the Spanish sculptor Pedro de Mena: a small St Teresa of Ávila, in the church of St Peter Alcantara in Cordoba, and a St Peter penitent, in the hermitage of the Virgin of the Assumption in Estepa (Seville. Both attributions are based on stylistic and technical elements, as well as on their similarities with other documented and signed works by Mena, thereby suggesting a date between the decades of the 1670s and 1680s.En este trabajo incorporamos dos nuevas obras al catálogo del escultor granadino Pedro de Mena: una Santa Teresa, conservada en la iglesia de San Pedro Alcántara de Córdoba, y un San Pedro arrepentido, en la ermita de la Asunción de Estepa (Sevilla. Se le atribuyen por razones de técnica, formato y estilo y se analizan en comparación con otras obras seguras y firmadas, lo que permite estrechar su datación en el contexto de las décadas de 1670 y 1680.

Documentación del fondo de Oseira (AHN relacionada con el monasterio San Pedro de Vilanova de Dozón (1015-1295

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Romaní Martínez, Miguel

2003-12-01

Full Text Available After the introduction and the criteria for transcription, we publish 25 documents of the 11>sub>th 12_th and 13thcenturies belonging to the collection of Oseira at the AHN related to the monastery of San Pedro de Vilanova de Dozon, in Tierra de Deza (Pontevedra. The suggested periods make it possible to observe the transition from the Visigothic writing to the Carolingian. We also include an appendix with tables of diplomatic and paléographie analyses, a sample of the most representative writings, onomastic and toponymie indices, and a bibliography.

Tras la introducción y criterios de transcripción, se editan 25 documentos de los siglos XI, XII y XIII pertenecientes al fondo de Oseira del AHN relacionados con el monasterio de San Pedro de Vilanova de Dozón, en Tierra de Deza (Pontevedra. Las fechas propuestas permiten observar el paso de la escritura visigótica a la Carolina. Se incluye un apéndice con tablas de análisis diplomático y paleográfico, una muestra de las escrituras más representativas, índices onomástico y toponímico, y bibliografía.

Improvements mineral dressing and extraction processes of gold-silver ores from San Pedro Frio Mining District, Colombia; Mejora de los procesos de beneficio y extraccion de minerales auroargentiferos del asentamiento minero de San Pedro Frio, Colombia

Energy Technology Data Exchange (ETDEWEB)

Yanez Traslavina, J. J.; Vargas Avila, M. A.; Garcia Paez, I. H.; Pedraza Rosas, J. E.

2005-07-01

The San Pedro Frio district mining, Colombia, is a rich region production gold-silver ores. Nowadays, the extraction processes used are amalgamation, percolation cyanidation and precipitation with zinc wood. Due to the ignorance of the ore characteristics, gold and silver treatment processes are inadequate and not efficient. In addition the inappropriate use of mercury and cyanide cause environmental contamination. In this research the ore characterization was carried out obtained fundamental parameters for the technical selection of more efficient gold and silver extraction processes. Experimental work was addressed to the study of both processes the agitation cyanidation and the adsorption on activated carbon in pulp. As a final result proposed a flowsheet to improve the precious metals recovery and reduce the environment contamination. (Author)

Geodinámica ambiental de La cuenca Del río San Pedro. Flanco norandino venezolano

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Kati A. MONTIEL

2001-12-01

Full Text Available El estúdio abarca el perímetro de Ia cuenca del rio San Pedro, flanco norandino venezolano, donde amplias áreas deforestadas, cicatrices de deslizamiento, sistemas de diaclasas, cercavas y surcos se conjugan y generan un desequilíbrio morfogenético expresado en movimientos de masa generalizados y avalanchas torrenciales, representando un peligro natural para Ia población local. Mediante el diserto de un SIG se efectuo una matriz espacial sustentada en el análisis geológico, geomorfológico, geotécnico, fotointerpretativo y ajustado a Ia clasificación de Ferrer, se identificaron diferentes niveles de estabilidad relativa: inestabilidad, inestabilidad crítica y potencialmente inestable, estos localizados en los espacios de mayor concentración poblacional.

Characterization of auriferous ores from the mining zone of San Pedro Frio (Bolivar-Colombia) to selection the extractive processes

International Nuclear Information System (INIS)

Yanez Traslavina, J J; Garcia Paez, I H; Pedraza Rosas, J E; Laverde Catano, D

2005-01-01

The benefit and treatment process of auriferous minerals that actuality are apply in San Pedro Frio's Miner Place, this carry a slightly efficient systems with percentages of gold recovery not bigger than 40 %. The present work is the summary of the results of analysis and characterization of minerals auriferous of the above mentioned mining zone. With this article, one tries to stimulate the miners to realize a development reconciled with the university, since according to the results obtained during this research, it is possible to achieve percentages of gold dissolution of up to 85 % for the minerals of San Pedro Frio. This affirmation was possible to propose it, by means of the analyses of the characterization of the mineral. By means of the physicochemical characterization of the mineral, there was possible the estimation of certain conditions of the metallurgical processes involved in a possible plant of treatment, it is so the percentage of solid more adapted for the managing of the solid ones in flesh was 40 % in weight, the high quantity of clay minerals they might impede the processes of separation solidly -liquid, among others operative specifications according to the mineralogical and metallurgical characterization, the average size of the present gold in the mineral, one finds to a minor grain 75 μm, this indicates that the cyanidation process for agitation would turn out to be the most suitable. The answer of the leaching diagnosis, they assumed very satisfactory results, since 94 % of the gold in the samples is as free gold, which will be able to affect in cyanidation short times

Improvements mineral dressing and extraction processes of gold-silver ores from San Pedro Frio Mining District, Colombia

International Nuclear Information System (INIS)

Yanez Traslavina, J. J.; Vargas Avila, M. A.; Garcia Paez, I. H.; Pedraza Rosas, J. E.

2005-01-01

The San Pedro Frio district mining, Colombia, is a rich region production gold-silver ores. Nowadays, the extraction processes used are amalgamation, percolation cyanidation and precipitation with zinc wood. Due to the ignorance of the ore characteristics, gold and silver treatment processes are inadequate and not efficient. In addition the inappropriate use of mercury and cyanide cause environmental contamination. In this research the ore characterization was carried out obtained fundamental parameters for the technical selection of more efficient gold and silver extraction processes. Experimental work was addressed to the study of both processes the agitation cyanidation and the adsorption on activated carbon in pulp. As a final result proposed a flowsheet to improve the precious metals recovery and reduce the environment contamination. (Author)

Low-pressure evolution of arc magmas in thickened crust: The San Pedro-Linzor volcanic chain, Central Andes, Northern Chile

Science.gov (United States)

Godoy, Benigno; Wörner, Gerhard; Kojima, Shoji; Aguilera, Felipe; Simon, Klaus; Hartmann, Gerald

2014-07-01

Magmatism at Andean Central Volcanic Zone (CVZ), or Central Andes, is strongly influenced by differentiation and assimilation at high pressures that occurred at lower levels of the thick continental crust. This is typically shown by high light to heavy rare earth element ratios (LREE/HREE) of the erupted lavas at this volcanic zone. Increase of these ratios with time is interpreted as a change to magma evolution in the presence of garnet during evolution of Central Andes. Such geochemical signals could be introduced into the magmas be high-pressure fractionation with garnet on the liquidus and/or assimilation from crustal rocks with a garnet-bearing residue. However, lavas erupted at San Pedro-Linzor volcanic chain show no evidence of garnet fractionation in their trace element patterns. This volcanic chain is located in the active volcanic arc, between 22°00‧S and 22°30‧S, over a continental crust ˜70 km thick. Sampled lavas show Sr/Y and Sm/Yb ratios Chile. We relate our geochemical observations to shallow crustal evolution of primitive magmas involving a high degree of assimilation of upper continental crust. We emphasize that low pressure AFC- (Assimilation Fractional Crystallization) type evolution of the San Pedro-Linzor volcanic chain reflects storage, fractionation, and contamination of mantle-derived magmas at the upper felsic crust (<40 km depth). The ascent of mantle-derived magmas to mid-crustal levels is related with the extensional regime that has existed in this zone of arc-front offset since Late-Miocene age, and the relatively thin portion of mafic lower crust observed below the volcanic chain.

Occurrence of Cryptosporidium oocysts and Giardia cysts in water supplies of San Pedro Sula, Honduras

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Solo-Gabriele Helena María

1998-01-01

Full Text Available During June 1996, water supplies of the city of San Pedro Sula, Honduras, were sampled to obtain an assessment of Cryptosporidium oocyst and Giardia cyst concentrations. Each sample was concentrated and stained with an indirect immunofluorescent antibody, and parasites were counted through microscopic analysis. In three surface water supplies, Cryptosporidium oocyst concentrations ranged from 58 to 260 oocysts per 100 L, and Giardia cysts were present in concentrations ranging from 380 to 2100 cysts per 100 L. Unlike the surface water samples, groundwater had a higher concentration of Cryptosporidium oocysts (26/100 L than Giardia cysts (6/100 L, suggesting that the groundwater aquifer protects the water supply more effectively from larger Giardia cysts. Cryptosporidium oocyst concentrations are within the typical range for surface water supplies in North America whereas Giardia cyst concentrations are elevated. Efforts should be made to protect raw water from sources of contamination.

Mejora de los procesos de beneficio y extracción de minerales auroargentíferos del asentamiento minero de San Pedro Frío, Colombia

OpenAIRE

Yáñez Traslaviña, J. J.; Vargas Ávila, M. A.; García Páez, I. H.; Pedraza Rosas, J. E.

2005-01-01

The San Pedro Frio district mining, Colombia, is a rich region producing gold-silver ores. Nowadays, the extraction processes used are amalgamation, percolation cyanidation and precipitation with zinc wood. Due to the ignorance of the ore characteristics, gold and silver treatment processes are inadequate and not efficient In addition the inappropriate use of mercury and cyanide cause environmental contamination. In this research the ore characterization was carried out obtaining fundamental ...

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

OpenAIRE

Rodríguez y Rodríguez, Yolanda

2011-01-01

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

Assessment of goods and valuation of ecosystem services (AGAVES) San Pedro River Basin, United States and Mexico

Science.gov (United States)

Semmens, Darius; Kepner, William; Goodrich, David

2010-01-01

A consortium of federal, academic, and nongovernment organization (NGO) partners have established a collaborative research enterprise in the San Pedro River Basin to develop methods, standards, and tools to assess and value ecosystem goods and services. The central premise of ecosystem services research is that human condition is intrinsically linked to the environment. Human health and well-being (including economic prosperity) depend on important supporting, regulating, provisioning, and cultural services that we derive from our surrounding ecosystems. The AGAVES project is intended as a demonstration study for incorporating ecosystem services information into resource management policy and decisionmaking. Accordingly, a nested, multiscale project design has been adopted to address a range of stakeholder information requirements. This design will further facilitate an evaluation of how well methods developed in this project can be transferred to other areas.

El turismo de naturaleza en espacios naturales. El caso del parque regional de las Salinas y Arenales de San Pedro del Pinatar

OpenAIRE

Ballesteros Pelegrín, Gustavo Alfonso

2014-01-01

Los espacios naturales atraen a turistas que buscan el contacto con la naturaleza, surgiendo nuevos productos turísticos. Surgen, de este modo, nuevos productos turísticos. En la oferta de turismo de naturaleza del Parque Regional de las Salinas y Arenales de San Pedro del Pinatar destaca: deportes en la naturaleza, aventura y ecoturismo. Este último se divide en: turismo ornitológico y fotográfico, que junto al tradicional de sol y playa y de salud, se ve favorecido por su situación geográfi...

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

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E. Cristofolini

2017-07-01

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

Faunistic patterns of leaf beetles (Coleoptera, Chrysomelidae) within elevational and temporal gradients in Sierra de San Carlos, Mexico

Science.gov (United States)

Sánchez-Reyes, Uriel Jeshua; Niño-Maldonado, Santiago; Barrientos-Lozano, Ludivina; Clark, Shawn M.; Jones, Robert W.

2016-01-01

Abstract The study of biodiversity of Chrysomelidae in Mexico and its variation within ecological gradients has increased recently, although important areas in the country remain to be explored. We conducted a faunistic inventory and analyzed the elevational and temporal variation of leaf beetle communities in the Sierra de San Carlos, in the state of Tamaulipas, in northeastern Mexico. This is an area with high to extreme priority for conservation, and due to its insular geographical position and to the vegetational communities present, it must be considered as a sky island. We selected seven sample sites distributed in different elevations within three localities, and comprising different vegetational communities. At each site, we randomly delimited 12 sample plots of 400 m2 where sampling was conducted by entomological sweep netting and collecting directly by hand. Sampling was conducted monthly at each plot, for a total of 1,008 samples between February 2013 and January 2014. By the end of the study, we had obtained a total of 3,081 specimens belonging to six subfamilies, 65 genera, and 113 species, with Trichaltica scabricula (Crotch, 1873) being recorded for first time in Mexico. Species richness was less than the values observed at other studies conducted in the same region, which is attributed to differences in the number of plant species and to the insular location of Sierra de San Carlos; however, the higher diversity values suggest a higher quality of natural resources and vegetational communities. No consistent pattern of leaf beetle communities was correlated with elevation, although higher values of species richness and diversity were obtained at the highest elevation site. The seasonal gradient showed that the rainy season is most favorable for leaf beetle communities. We found that species composition was different between sites and months, and also that there exists a significant association between the abundance obtained at each site and

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

Emerging pollutants in the Esmeraldas watershed in Ecuador: discharge and attenuation of emerging organic pollutants along the San Pedro-Guayllabamba-Esmeraldas rivers.

Science.gov (United States)

Voloshenko-Rossin, A; Gasser, G; Cohen, K; Gun, J; Cumbal-Flores, L; Parra-Morales, W; Sarabia, F; Ojeda, F; Lev, O

2015-01-01

Water quality characteristics and emerging organic pollutants were sampled along the San Pedro-Guayllabamba-Esmeraldas River and its main water pollution streams in the summer of 2013. The annual flow rate of the stream is 22 000 Mm(3) y(-1) and it collects the wastewater of Quito-Ecuador in the Andes and supplies drinking water to the city of Esmeraldas near the Pacific Ocean. The most persistent emerging pollutants were carbamazepine and acesulfame, which were found to be stable along the San Pedro-Guayllabamba-Esmeraldas River, whereas the concentration of most other organic emerging pollutants, such as caffeine, sulfamethoxazole, venlafaxine, O-desmethylvenlafaxine, and steroidal estrogens, was degraded to a large extent along the 300 km flow. The mass rate of the sum of cocaine and benzoylecgonine, its metabolite, was increased along the stream, which may be attributed to coca plantations and wild coca trees. This raises the possibility of using river monitoring as an indirect way to learn about changes in coca plantations in their watersheds. Several organic emerging pollutants, such as venlafaxine, carbamazepine, sulphamethoxazole, and benzoylecgonine, survived even the filtration treatment at the Esmeraldas drinking water system, though all except for benzoylecgonine are found below 20 ng L(-1), and are therefore not likely to cause adverse health effects. The research provides a way to compare drug consumption in a major Latin American city (Quito) and shows that the consumption of most sampled drugs (carbamazepine, venlafaxine, O-desmethylvenlafaxine, sulphamethoxazole, ethinylestradiol) was below their average consumption level in Europe, Israel, and North America.

Coal exploration in the Alto San Jorge area, Cordoba Department. Exploracion de carbones en el Ato San Jorge, Departamento de Cordoba

Energy Technology Data Exchange (ETDEWEB)

Ospina, L H; Oquendo, G G [Geominas Ltda, Medellin (Colombia)

1989-01-01

A Mining Feasibility Study in the Area of Alto San Jorge, Department of Cordoba, Colombia, was commissioned by CARBOCOL S.A. to the Consortium Geominas-NACI. An area of 800 Ka2 was explored to define surface mining possibilities within two subareas referred to as Alto San Jorge and San Pedro Ure. Rocks of Cretaceous, Tertiary and Quaternary age crop out in the zone. In the subarea Alto San Jorge the principal structure is a syncline with a south-north direction. The San Pedro Ure subarea is formed by undulations with flanks of low dip, the most important being the San Antonio Syncline because it contains the mining block. The geological study of the surface demonstrated the existence of coal in the Oligocene Cienaga de Oro Formation and the Niocene Cerrito Formation, with potential resources of 6.3 billion tons. The subsequent exploration of the subsoil, with 20.618 m of drilling, permitted determination of demonstrated reserves in the order of 2.9 billion tons within two areas. In the sector selected for the mine plan, in the area of San Pedro-Puerto Libertador, 7.791 m of drilling was accomplished to define a demonstrated reserve of 515 million tons of coal down to a depth of 200. The combustible type coal has 5.000 cal/g. Complete mining schedules were developed at the prefeasibility level for two surface mines with productions of 1.5 MMTY and 4 MMTY. 9 figs., 3 tabs., 28 refs.

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).

PHYSICAL AND CHEMICAL DEGRADATION OF AGRICULTURAL SOILS AT SAN PEDRO LAGUNILLAS, NAYARIT

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Gelacio Alejo Santiago

2012-08-01

Full Text Available The objective of this study was to evaluate the degradation to propose strategies for remediation and recovery of agricultural soils of San Pedro Lagunillas, Nayarit, Mexico; considering physical and chemical properties. Soils maintained with natural vegetation but slightly grazed and agricultural soils used for more than 20 years for the production of several crops, were compared. Eight sites were studied (four cultivated and four uncultivated, each agricultural lands (cultivated was located at a distance of 30 to 80 m from its counterpart or soil with natural vegetation (uncultivated. Samples were obtained from the following layers: 0 to 10, 10 to 20 and 20 to 30 cm. The variables evaluated were: particles smaller than 2 mm, pH, organic matter, extractable phosphorus, exchangeable potassium, calcium and magnesium; soil texture and water infiltration rate. An analysis of variance and Tukey means test (α = 0.05 was applied. It was concluded that traditional farming practices led to adverse changes in soil chemical properties, in the upper 20 cm soil layer. Physical properties were also affected because infiltration film and water infiltration rate decreased about 50% in cultivated soils. The overall results in this work evident the need to take appropriate measures to prevent the physical and chemical degradation of cultivated soils in order to preserve this resource and maintain their productivity.

Ecosystem services valuation to support decisionmaking on public lands—A case study of the San Pedro River watershed, Arizona

Science.gov (United States)

Bagstad, Kenneth J.; Semmens, Darius; Winthrop, Rob; Jaworksi, Delilah; Larson, Joel

2012-01-01

This report details the findings of the Bureau of Land Management–U.S. Geological Survey Ecosystem Services Valuation Pilot Study. This project evaluated alternative methods and tools that quantify and value ecosystem services, and it assessed the tools’ readiness for use in the Bureau of Land Management decisionmaking process. We tested these tools on the San Pedro River watershed in northern Sonora, Mexico, and southeast Arizona. The study area includes the San Pedro Riparian National Conservation Area (managed by the Bureau of Land Management), which has been a focal point for conservation activities and scientific research in recent decades. We applied past site-specific primary valuation studies, value transfer, the Wildlife Habitat Benefits Estimation Toolkit, and the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) and Artificial Intelligence for Ecosystem Services (ARIES) models to value locally important ecosystem services for the San Pedro River watershed—water, carbon, biodiversity, and cultural values. We tested these approaches on a series of scenarios to evaluate ecosystem service changes and the ability of the tools to accommodate scenarios. A suite of additional tools were either at too early a stage of development to run, were proprietary, or were place-specific tools inappropriate for application to the San Pedro River watershed. We described the strengths and weaknesses of these additional ecosystem service tools against a series of evaluative criteria related to their usefulness for Bureau of Land Management decisionmaking. Using these tools, we quantified gains or losses of ecosystem services under three categories of scenarios: urban growth, mesquite management, and water augmentation. These results quantify tradeoffs and could be useful for decisionmaking within Bureau of Land Management district or field offices. Results are accompanied by a relatively high level of uncertainty associated with model outputs, valuation

Ephemeral-stream channel and basin-floor infiltration and recharge in the Sierra Vista subwatershed of the Upper San Pedro Basin, Southeastern Arizona: Chapter J in Ground-water recharge in the arid and semiarid southwestern United States (Professional Paper 1703)

Science.gov (United States)

Coes, A.L.; Pool, D.R.; Stonestrom, David A.; Constantz, Jim; Ferré, Ty P.A.; Leake, Stanley A.

2007-01-01

The timing and location of streamflow in the San Pedro River are partially dependent on the aerial distribution of recharge in the Sierra Vista subwatershed. Previous investigators have assumed that recharge in the subwatershed occurs only along the mountain fronts by way of stream-channel infiltration near the contact between low-permeability rocks of the mountains and the basin fill. Recent studies in other alluvial basins of the Southwestern United States, however, have shown that significant recharge can occur through the sediments of ephemeral stream channels at locations several kilometers distant from the mountains. The purpose of this study was to characterize the spatial distribution of infiltration and subsequent recharge through the ephemeral channels in the Sierra Vista subwatershed.Infiltration fluxes in ephemeral channels and through the basin floor of the subwatershed were estimated by using several methods. Data collected during the drilling and coring of 16 boreholes included physical, thermal, and hydraulic properties of sediments; chloride concentrations of sediments; and pore-water stable-isotope values and tritium activity. Surface and subsurface sediment temperatures were continuously measured at each borehole.Twelve boreholes were drilled in five ephemeral stream channels to estimate infiltration within ephemeral channels. Active infiltration was verified to at least 20 meters at 11 of the 12 borehole sites on the basis of low sediment-chloride concentrations, high soil-water contents, and pore-water tritium activity similar to present-day precipitation. Consolidated sediments at the twelfth site prevented core recovery and estimation of infiltration. Analytical and numerical methods were applied to determine the surface infiltration flux required to produce the observed sediment-temperature fluctuations at six sites. Infiltration fluxes were determined for summer ephemeral flow events only because no winter flows were recorded at the sites

Analyse des propriétés hydrodynamiques des aquifères fissurés de la région de San-Pedro (Sud-Ouest de la Côte d’Ivoire

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De-Lasme, O. Z.

2012-12-01

Full Text Available San-Pedro area is localized in south-western Côte d’Ivoire and covers a surface of 6912 km². Wa t e r resources exploited in this area are constituted of surface waters and groundwater of weathered and fissured aquifers. The aims of this study are to analyze hydrodynamic properties of fissured aquifers of San-Pedro on statistical and geostatistical viewpoints for a better knowledge and management of groundwater resources. Data base includes 110 drillings tapping fissured aquifers. Transmissivity was calculated by interpreting of pumping tests with classical methods. Specific capacity was calculated at the end of the third step for all drillings after correction of drawdowns. Transmissivity and specific capacity values oscillate between 1,27.10^-6 and 8,59.10-⁴ m².s^-1 and between 1,09.10^-2 m².h^-1 et 13,2 m².h^-1, respectively. These two parameters span three orders of magnitude showing the strong heterogeneity of the medium. An empirical relationship was established between transmissivity and specific capacity of San-Pedro area. This relationship can be used to determine transmissivity in the sectors where this data is lacking. Variogram of transmissivity is characterized by a double structuring. Transmissivity assessment by kriging is satisfactory, observed and estimated values are comparable. The findings obtained in this study lead to a better understanding of hydrogeological properties of south-western Côte d’Ivoire.

[fr] La région de San-Pedro est localisée dans le sud-ouest de la Côte d’Ivoire et couvre une superficie de 6912 km². Les ressources en eau exploitées dans cette région sont constituées des eaux de surface et des eaux souterraines des aquifères des altérites et de fissures du socle précambrien. La présente étude a pour objectif d’analyser les propriétés hydrodynamiques des aquif

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

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Pedro Busquets

2013-01-01

Full Text Available Se efectúa el análisis estratigráfico de la secuencia neopaleozoica aflorante en la Sierra de Castaño (Cordillera Frontal de la provincia de San Juan, donde han sido reconocidas tres unidades estratigráficas. La basal corresponde a la Formación Cerro Agua Negra (Carbonífero tardío-Pérmico temprano?, formada por areniscas y pelitas depositadas en ambiente marino de plataforma somera y litoral. Sobre ella se dispone la Formación San Ignacio, compuesta por sedimentitas silicoclásticas (desde conglomerados hasta pelitas, calizas estromatolíticas-microbiales, rocas volcánicas, en su mayoría de composición mesosilícica y ácida, y depósitos volcanoclásticos. Estas últimas rocas, probablemente depositadas hacia fines del Carbonífero tardío o en el Pérmico más temprano, cubren en discordancia angular a las de la Formación Cerro Agua Negra en la Sierra de Castaño. Dentro de la Formación San Ignacio fueron identificadas 3 asociaciones de facies sedimentarias. La inferior (AFa está formada por brechas, conglomerados brechosos y areniscas líticas, sedimentadas en sistemas aluviales y fluviales entrelazados que rellenaron una irregular topografía labrada sobre la Formación Cerro Agua Negra. La asociación de facies media (AFb, compuesta por conglomerados, areniscas y pelitas, desarrolla ciclos granodecrecientes de escala métrica muy probablemente originados en sistemas fluviales de alta sinuosidad. La asociación de facies superior (AFc comprende calizas estromatolíticas microbiales, pelitas, niveles de volcanitas y piroclastitas, originadas en cuerpos de aguas someros sujetos a recurrente actividad volcánica. La Formación San Ignacio permite caracterizar el pasaje entre las sucesiones no volcánicas de la Formación Cerro Agua Negra y el intenso magmatismo representado en el Grupo Choiyoi (Pérmico medio-Triásico Inferior. Además demuestra la existencia de dos eventos mayores de deformación tectónica en la regi

Presence of multi-drug resistant pathogenic Escherichia coli in the San Pedro River located in the State of Aguascalientes, Mexico.

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Flor Yazmin Ramirez Castillo

2013-06-01

Full Text Available Contamination of surface waters in developing countries is a great concern. Treated and untreated wastewaters have been discharged into rivers and streams, leading to possible waterborne infection outbreaks and may represent a significant dissemination mechanism of antibiotic resistance genes. In this study, the water quality of San Pedro River, the main river and pluvial collector of the Aguascalientes State, Mexico was assessed. Thirty sample locations were tested throughout the River. The main physicochemical parameters of water were evaluated. Results showed high levels of fecal pollution as well as inorganic and organic matter abundant enough to support the heterotrophic growth of microorganisms. These results indicate poor water quality in samples from different locations. One hundred and fifty Escherichia coli were collected and screened by PCR for several virulence genes. Isolates were classified as either pathogenic (n = 91 or commensal (n = 59. The disc diffusion method was used to determine antimicrobial susceptibility to 13 antibiotics. Fifty-two percent of the isolates were resistant to at least one antimicrobial agent and 30.6% were multi-resistant. Eighteen E. coli strains were quinolone resistant of which 16 were multi-resistant. Plasmid-mediated quinolone resistance genes were detected in 12 isolates. Mutations at the Ser-83→Leu and/or Asp-87→Asn in the gyrA gene were detected as well as mutations at the Ser-80→Ile in parC. An E. coli microarray (Maxivirulence V 3.1 was used to characterize the virulence and antimicrobial resistance genes profiles of the fluoroquinolone-resistant isolates. Antimicrobial resistance genes such as blaTEM, sulI, sulII, dhfrIX, aph3 (strA and tet (B as well as integrons were found in fluoroquinolone resistance E. coli strains. The presence of potential pathogenic E. coli and antibiotic resistance in San Pedro River such as fluoroquinolone resistant E. coli could pose a potential threat to human

El turismo de naturaleza en espacios naturales. El caso del Parque Regional de las Salinas y Arenales de San Pedro del Pinatar

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Gustavo A. Ballesteros Pelegrín

2014-01-01

Full Text Available Los espacios naturales atraen a turistas que buscan el contacto con la naturaleza, surgiendo nuevos productos turísticos. Surgen, de este modo, nuevos productos turísticos. En la oferta de turismo de naturaleza del Parque Regional de las Salinas y Arenales de San Pedro del Pinatar destaca: deportes en la naturaleza, aventura y ecoturismo. Este último se divide en: turismo ornitológico y fotográfico, que junto al tradicional de sol y playa y de salud, se ve favorecido por su situación geográfica, condiciones naturales y amplia oferta hotelera. Sin embargo, el turismo cultural basado en la tradición salinera y pesquera no ha sido desarrollado.

Sediment Dynamics Over a Stable Point bar of the San Pedro River, Southeastern Arizona

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Hamblen, J. M.; Conklin, M. H.

2002-12-01

Streams of the Southwest receive enormous inputs of sediment during storm events in the monsoon season due to the high intensity rainfall and large percentages of exposed soil in the semi-arid landscape. In the Upper San Pedro River, with a watershed area of approximately 3600 square kilometers, particle size ranges from clays to boulders with large fractions of sand and gravel. This study focuses on the mechanics of scour and fill on a stable point bar. An innovative technique using seven co-located scour chains and liquid-filled, load-cell scour sensors characterized sediment dynamics over the point bar during the monsoon season of July to September 2002. The sensors were set in two transects to document sediment dynamics near the head and toe of the bar. Scour sensors record area-averaged sediment depths while scour chains measure scour and fill at a point. The average area covered by each scour sensor is 11.1 square meters. Because scour sensors have never been used in a system similar to the San Pedro, one goal of the study was to test their ability to detect changes in sediment load with time in order to determine the extent of scour and fill during monsoonal storms. Because of the predominantly unconsolidated nature of the substrate it was hypothesized that dune bedforms would develop in events less than the 1-year flood. The weak 2002 monsoon season produced only two storms that completely inundated the point bar, both less than the 1-year flood event. The first event, 34 cms, produced net deposition in areas where Johnson grass had been present and was now buried. The scour sensor at the lowest elevation, in a depression which serves as a secondary channel during storm events, recorded scour during the rising limb of the hydrograph followed by pulses we interpret to be the passage of dunes. The second event, although smaller at 28 cms, resulted from rain more than 50 km upstream and had a much longer peak and a slowly declining falling limb. During the

La vida en torno al café: marginación social de pequeños productores en San Pedro Cafetitlán, Oaxaca, México

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Israel Morales Becerra

2013-01-01

Se presenta una descripción etnográfica del trabajo de campo realizado en San Pedro Cafetitlán, Oaxaca, México sobre la situación de marginación social derivada de la implementación del modelo económico neoliberal; se hace una interpretación del significado que tiene el cultivo del café en la vida de los pobladores. Destaca el hecho de que las generaciones mayores de 60 años aun valoran el recurso, tienen identidad con la tierra y esperanzas en su café; sin embargo, para las nuevas generacion...

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

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

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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.

Determinación del uso actual y potencial del suelo en fincas de los distritos de San Juan y San Pedro de Santa Bárbara de Heredia.

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Cecilia Villalobos

2016-03-01

Full Text Available Tomando en consideración que desde la perspectiva del concepto de agricultura sostenible el uso actual del suelo debe ser lo más cercano posible al uso potencial, se realizó este estudio, con el objetivo de establecer un análisis comparativo entre el uso actual y potencial del suelo en las regiones de San Juan y San Pedro de Santa Bárbara de Heredia, así como establecer la relación existente entre el uso actual y los procesos de degradación. Este trabajo se realizó en 10 fincas de pequeños agricultores pertenecientes a la Sociedad de Usuarios de Aguas de la zona, donde se encontró que los suelos presentan características físico-químicas que los hacen adecuados para la producción agrícola. Las condiciones agroclimáticas de la zona de estudio facilitan la explotación de un amplio grupo de cultivos. La mayoría de los suelos se clasifico dentro de la clase II, siendo la erosión sufrida la principal limitante. En general, el uso actual se adecua al uso potencial, sin embargo, se estima que existen problemas de manejo que están provocando el deterioro del suelo por erosión.

Pedro José Velarde: un rapsoda callejero en el México del siglo XVIII

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Bernabéu Albert, Salvador

2005-12-01

Full Text Available The Inquisition trial of Pedro José Velarde in 1768 reveals the life and works of this street poet that was very popular in the market of El Baratillo. Velarde was imprisoned because some of his compositions were dedicated to praise the activities of the jesuits, expelled in 1767. He was sentenced to three years in prison serving in the San Juan de Dios Hospital, but died in poverty in 1768.

Gracias al proceso abierto por la Inquisición mexicana en 1768 podemos reconstruir parcialmente la vida y la obra de Pedro José Velarde, poeta callejero que se hizo famoso en el mercado del Baratillo. Algunas de sus composiciones fueron dedicadas a ensalzar las actividades de los jesuitas, expulsados en 1767, por lo que fue encarcelado y sentenciado a servir durante tres años en el hospital de San Juan de Dios. Murió en 1784 en la pobreza.

CARACTERIZACIÓN QUÍMICA Y MINERALÓGICA DE LAS CROMITAS DE LA ZONA DE BELLO Y SAN PEDRO (DEPARTAMENTO DE ANTIOQUIA

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Camilo Andres Quintero G.

2010-10-01

Full Text Available Se caracterizaron químicamente cinco muestras de cromita de los municipios de Bello y San Pedro (Antioquia en forma semicuantitativa (Análisis Espectrográfico y cuantitativa (Absorción Atómica y Espectroscopia de Emisión con fuente de plasma de Acoplamiento Inductivo; la caracterización mineralógica de las muestras se realizó mediante DRX, ATG y ATD, Microscopía Óptica y Microscopía Electrónica de Barrido con análisis por microsonda SEM-EDS, Estos resultados muestran la factibilidad de utilizar las cromitas de estos sectores como materia prima refractaria por poseer características químicas similares a las cromitas de Cuba o Filipinas que se explotan en la actualidad.

Assessing hydrologic impacts of future Land Change scenarios in the San Pedro River (U.S./Mexico)

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Kepner, W. G.; Burns, S.; Sidman, G.; Levick, L.; Goodrich, D. C.; Guertin, P.; Yee, W.; Scianni, M.

2012-12-01

An approach was developed to characterize the hydrologic impacts of urban expansion through time for the San Pedro River, a watershed of immense international importance that straddles the U.S./Mexico border. Future urban growth is a key driving force altering local and regional hydrology and is represented by decadal changes in housing density maps from 2010 to 2100 derived from the Integrated Climate and Land-Use Scenarios (ICLUS) database. ICLUS developed future housing density maps by adapting the Intergovernmental Panel on Climate Change (IPCC) Special Report on Emissions Scenarios (SRES) social, economic, and demographic storylines to the conterminous United States. To characterize the hydrologic impacts of future growth, the housing density maps were reclassified to National Land Cover Database 2006 land cover classes and used to parameterize the Soil and Water Assessment Tool (SWAT) using the Automated Geospatial Watershed Assessment (AGWA) tool. The presentation will report 1) the methodology for adapting the ICLUS data for use in AGWA as an approach to evaluate basin-wide impacts of development on water-quantity and -quality, 2) initial results of the application of the methodology, and 3) discuss implications of the analysis.

Evaluation of NDVI to assess avian abundance and richness along the upper San Pedro River

Science.gov (United States)

McFarland, T.M.; van Riper, Charles; Johnson, G.E.

2012-01-01

Remote-sensing models have become increasingly popular for identifying, characterizing, monitoring, and predicting avian habitat but have largely focused on single bird species. The Normalized Difference Vegetation Index (NDVI) has been shown to positively correlate with avian abundance and richness and has been successfully applied to southwestern riparian systems which are uniquely composed of narrow bands of vegetation in an otherwise dry landscape. Desert riparian ecosystems are important breeding and stopover sites for many bird species but have been degraded due to altered hydrology and land management practices. Here we investigated the use of NDVI, coupled with vegetation, to model the avian community structure along the San Pedro River, Arizona. We also investigated how vegetation and physical features measured locally compared to those data that can be gathered through remote-sensing. We found that NDVI has statistically significant relationships with both avian abundance and species richness, although is better applied at the individual species level. However, the amount of variation explained by even our best models was quite low, suggesting that NDVI habitat models may not presently be an accurate tool for extensive modeling of avian communities. We suggest additional studies in other watersheds to increase our understanding of these bird/NDVI relationships.

MONUMENTO A PEDRO PÉREZ RODRÍGUEZ [Material gráfico

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Anonymous

1980-01-01

ANEXO SELLO DE LA COMISIÓN DEL PATRIMONIO HISTÓRICO ARTÍSTICO DE GÁLDAR. MONUMENTO LEVANTADO POR LA PARROQUIA DE SAN JOSÉ DE LOS CAIDEROS A SU PRIMER PÁRROCO, EL SACERDOTE MAJORERO, DON PEDRO PÉREZ RODRÍGUEZ. SE ENCUENTRA EL BUSTO EN LA GLORIETA LATERAL DEL CENTRO. Copia digital. Madrid : Ministerio de Educación, Cultura y Deporte. Subdirección General de Coordinación Bibliotecaria, 2015

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)

Cooperación y conflicto entre empresas, comunidades, nuevos movimientos sociales y el papel del gobierno. El caso de cerro de San Pedro (México

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José G. Vargas-Hernández

2009-07-01

Full Text Available El objetivo de este trabajo es analizar las relaciones de cooperación y conflicto entre la Compañía Minera (MSX y las comunidades de San Pedro, Soledad y San Luis Potosí, los Nuevos Movimientos Sociales y los tres niveles de gobierno involucrados. La compañía Minera inició operaciones en una mina a cielo abierto de oro y plata con el apoyo de oficiales de los gobiernos locales, estatales y federal. Los habitantes de estas comunidades apoyados por grupos ambientalistas y Organizaciones No Gubernamentales argumentan que el proyecto contamina las fuentes de agua fresca, además de perturbar el medio ambiente y la ecología de la región. En tal sentido el artículo analiza el impacto, la interacción social y de conflicto entre los distintos actores desde una perspectiva local y socio-ambiental, previa contextualización histórica de subregión y el desarrollo de la industria minera.

El impacto de la desecación de la laguna de Lerma en la gastronomía lacustre de San Pedro Tultepec de Quiroga, Estado de México

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Felipe Carlos Viesca González

2011-01-01

El objetivo de este trabajo es caracterizar la gastronomía lacustre en el Alto Lerma, prevaleciente antes y después de la desecación de la Laguna de Lerma, específicamente la de San Pedro Tultepec de Quiroga municipio de Lerma, en el Estado de México. Mediante la aplicación de la técnica etnográfica en la realización de la investigación de campo, se identificaron y localizaron a 30 personas adultas que aún entran a la laguna de Chimaliapan o Lerma, o que tienen conocimiento sobre los ingredie...

Sr- and Nd- isotope variations along the Pleistocene San Pedro - Linzor volcanic chain, N. Chile: Tracking the influence of the upper crustal Altiplano-Puna Magma Body

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Godoy, Benigno; Wörner, Gerhard; Le Roux, Petrus; de Silva, Shanaka; Parada, Miguel Ángel; Kojima, Shoji; González-Maurel, Osvaldo; Morata, Diego; Polanco, Edmundo; Martínez, Paula

2017-07-01

Subduction-related magmas that erupted in the Central Andes during the past 10 Ma are strongly affected by crustal assimilation as revealed by an increase in 87Sr/86Sr isotope ratios with time that in turn are correlated with increased crustal thickening during the Andean orogeny. However, contamination is not uniform and can be strongly influenced locally by crustal composition, structure and thermal condition. This appears to be the case along the NW-SE San Pedro - Linzor volcanic chain (SPLVC) in northern Chile, which straddles the boundary of a major zone of partial melt, the Altiplano_Puna Magma Body (APMB). Herein we report 40Ar/39Ar ages, compositional and isotope data on lavas from the SPLVC that track the influence of this zone of partial melting on erupted lavas with geochronological and geochemical data. Ages reported here indicate that SPLVC has evolved in the last 2 M.y., similar to other volcanoes of the Western Cordillera (e.g. Lascar, Uturuncu, Putana). 87Sr/86Sr ratios increase systematically along the chain from a minimum value of 0.7057 in San Pedro dacites to a maximum of 0.7093-0.7095 for the Toconce and Cerro de Leon dacites in the SE. These changes are interpreted to reflect the increasing interaction of SPLVC parental magmas with partial melt within the APMB eastwards across the chain. The 87Sr/86Sr ratio and an antithetic trend in 143Nd/144Nd is therefore a proxy for the contribution of melt from the APMB beneath this volcanic chain. Similar 87Sr/86Sr increases and 143Nd/144Nd decreases are observed in other transects crossing the boundary of the APMB. Such trends can be recognized from NW to SE between Aucanquilcha, Ollagüe, and Uturuncu volcanoes, and from Lascar volcano to the N-S-trending Putana-Sairecabur-Licancabur volcanic chain to the north. We interpret these isotopic trends as reflecting different degrees of interaction of mafic parental melts with the APMB. High 87Sr/86Sr, and low 143Nd/144Nd reveal zones where the APMB is

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)

Autoestima y agresividad en estudiantes de quinto grado de educación primaria de la institución educativa estatal "Pedro Adolfo Labarthe", distrito La Victoria, UGEL 03 San Miguel 2015.

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Pariona Martínez, Magaly

2015-01-01

Este estudio responde al objeto determinar si existe relación significativa de la autoestima con la agresividad en estudiantes de quinto grado de educación primaria de la Institución Educativa estatal “Pedro Adolfo Labarthe”, distrito la Victoria, UGEL 03 San Miguel, 2015. El interés de la presente investigación es establecer la relación entre los factores emocionales – particularmente la autoestima- y la agresividad en estudiantes de quinto grado de educación primaria, describir cómo ha sido...

Factores que influyen en la diversidad de la dieta de las familias campesinas de las comunidades de San Clemente y Jesús del Gran Poder en la sierra norte del Ecuador.

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Boada Molina, Laura Gabriela

2015-01-01

La presente investigación se basa en el estudio de la diversidad en la dieta de las familias campesinas de la Sierra Norte del Ecuador, específicamente en las comunidades de Jesús del Gran Poder en la Provincia del Carchi y de San Clemente en la Provincia de Imbabura.

Pedro de Castañeda: su pintura para el refectorio del Colegio Mayor de San Ildefonso (1553

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González Ramos, Roberto

2003-09-01

Full Text Available El pintor Pedro de Castañeda es un artista poco conocido, activo en la zona de Alcalá de Henares en las décadas centrales del siglo XVI. Se sabe que junto a su hijo Juan fue colaborador del entallador y traductor de Vitruvio Miguel de Urrea. Pedro de Castañeda pintó un cirial que había tallado Urrea para la iglesia parroquial de Camarma de Esteruelas, trabajo por el que ambos cobraron cierta cantidad en 1540, y en 1550 colaboró con ese entallador y con Claudio de Arciniega, ayudado por Juan, en la obra de los retablos colaterales de la iglesia de Daganzo de Arriba (perdidos, realizando su pintura. Parece que se trata del mismo artista el Pedro Castañeda que se documenta trabajando en la zona de Segovia, concretamente en dos retablos para la iglesia de Cascajares del Fresno. Falleció en 1557…

La antigua iglesia de San Pedro (Íscar, Valladolid. Evidencias arquitectónicas románicas

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Esteban Molina, Jorge

2015-03-01

Full Text Available Saint Peter is the great unknown of the Iscar churches due to the demolition of most of its architectural structures and the insufficient characteristics of the scarcely preserved evidence, hidden between contemporary buildings. Nevertheless, the recent demolition of one of the buildings attached to the eastern side of the former temple, where the Romanesque remains are concentrated, has brought to light a decisive part of the apse and the presbytery along with the front closure of the southern aisle. This discovery has allowed an indepth analysis and an approach to what could have been the primitive building.San Pedro es la gran desconocida de las iglesias de Íscar a consecuencia de la demolición de la mayor parte de sus estructuras arquitectónicas y de la insuficiente representatividad de las escasas evidencias conservadas, enmascaradas entre edificios contemporáneos. Sin embargo, el reciente derribo de uno de los inmuebles adosados en el extremo oriental del antiguo templo, donde se concentran los restos del periodo románico, ha sacado a la luz una parte determinante del ábside y el presbiterio así como el testero de cierre de la nave meridional, permitiendo su análisis en profundidad y una aproximación a lo que pudo ser la primitiva construcción.

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

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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...

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

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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...

Mejora de los procesos de beneficio y extracción de minerales auroargentíferos del asentamiento minero de San Pedro Frío, Colombia

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Yáñez Traslaviña, J. J.

2005-04-01

Full Text Available The San Pedro Frio district mining, Colombia, is a rich region producing gold-silver ores. Nowadays, the extraction processes used are amalgamation, percolation cyanidation and precipitation with zinc wood. Due to the ignorance of the ore characteristics, gold and silver treatment processes are inadequate and not efficient In addition the inappropriate use of mercury and cyanide cause environmental contamination. In this research the ore characterization was carried out obtaining fundamental parameters for the technical selection of more efficient gold and silver extraction processes. Experimental work was addressed to the study of both processes the agitation cyanidation and the adsorption on activated carbon in pulp. As a final result proposed a flowsheet to improve the precious metals recovery and reduce the environment contamination.

El asentamiento minero San Pedro Frío, Colombia, es una región rica en minerales auroargentíferos. Actualmente, los mineros de la región emplean procesos de tratamiento como amalgamación, cianuración por percolación y precipitación con viruta de zinc. Debido al desconocimiento de las características del mineral que allí se explota, los procesos de beneficio y tratamiento de oro y plata resultan inadecuados y poco eficientes, ocasionando, además, contaminación ambiental por el uso inapropiado del mercurio y cianuro. En este trabajo se realizó la caracterización del mineral obteniéndose parámetros fundamentales para la selección técnica de los procesos de extracción y recuperación de oro y de plata. El trabajo experimental se orientó al estudio de los procesos de cianuración por agitación y de adsorción con carbón activado en pulpa. Como resultado final, se presentó una propuesta de tratamiento para mejorar la recuperación de los metales preciosos y disminuir los niveles de contaminación ambiental

Perfiles anhelados. Correspondencia de lenguajes y estéticas entre el Cementerio San Pedro y la red social Facebook

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Eloisa Lamilla Guerrero

2016-09-01

Full Text Available This article aims to analyze, through ethnographic observation of the Cemetery San Pedro in Medellin (Colombia, the recent trend of tombstones decoration in confluence with the proposal of structure and aesthetics of the social network Facebook. This correlation between the virtual language of Facebook and the ritual language of the tombs, is much more complex than a mere coincidence so we propose a thorough comparative reading of these two universes of representation for the meeting and communication, is needed to provide a better understanding of the two phenomena. Both are plethoric spaces that reveal the relentless pursuit of the subject to perpetuate their presence, to tell about their lives and deaths, to eternalize their expressions of affection, love and devotion, and to continue their social relationships despite physical or virtual distance, as scenarios with common origins and intentions, where appearing is more important than being. Currently, the “walls” of both the Cemetery and Facebook, serve as communicational sceneries that share publicly and shamelessly intimate details; where family relationships are announced; idyllic havens are displayed as photographic backgrounds; messages are left and profiles with the strong necessity to achieve the long-awaited update transcendence.

Paleolimnological studies of Laguna Chica of San Pedro (VIII Region: Diatoms, hydrocarbons and fatty acid records Estudio Paleolimnológico de Laguna Chica de San Pedro (VIII Región: Diatomeas, hidrocarburos y ácidos grasos

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ROBERTO URRUTIA

2000-12-01

Full Text Available Diatom, hydrocarbons and fatty acid sedimentary records were used for reconstructing the recent (last 150 years palaeolimnological history of Laguna Chica of San Pedro (Concepción, VIII Región, Chile. Cluster analyses (Constrained Incremental Sum of Squares on the diatom data revealed three distinct periods. The first period (1883-1940's showed a pronounced increase in sedimentation rate and a slight increase in organic matter accumulation. In this period, eutrophic species (Aulacoseira granulata and Staurosira construens became increasingly dominant. From the 1940s until the 1970s the diatom signal is more equivocal: after the initial decrease in the relative abundance of A. granulata and S. construens their numbers fluctuate without a clear pattern. Sedimentation rates strongly fluctuate in this period. From 1978 onwards eutrophic species are in decline while indicators of oligotrophic conditions, such as Cyclotella stelligera and Aulacoseira distans, become more abundant. This shift in the lake trophic status could not be attributed to a reduction in the nutrient load from the catchment and we hypothesize that the invasion of the lake by the submersed macrophyte Egeria densa has altered nutrient availability to the plankton communities. This is in agreement with the hydrocarbons and fatty acid analyses which demonstrate a shift in carbon number distributions from short chain alkanes and alkanoic acids (typical for microalgae to long chain molecules (characteristic for higher plants in the upper layers of the lake sedimentSe realizó la reconstrucción histórica de los últimos 150 años de Laguna Chica de San Pedro (Concepción, VIII Región, Chile, a través de la utilización de los restos de diatomeas, hidrocarburos y ácidos grasos contenidos en la columna de sedimento. El análisis estratigráfico de las diatomeas reveló la presencia de tres períodos diferentes. El primer período (1883-1940's, mostró un marcado aumento de las

Incorporación al turismo y transformación del habitus en la mujer campesina de San Pedro Atlapulco, México

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Carlos Pérez-Ramírez

2012-11-01

Full Text Available Normal 0 21 false false false PT-BR X-NONE X-NONE O objetivo deste trabalho é analisar as mudanças no habitus das mulheres rurais na comunidade de San Pedro Atlapulco, localizado no Estado do México (México, com base na inclusão de serviços turísticos, a fim de determinar o impacto sobre a dinâmica e conformação da unidade familiar, o espaço coletivo e até mesmo sua relação com o exterior. A pesquisa é baseada na teoria do habitus proposta por Bourdieu (1988, contrastando a situação do habitus de mulheres antes e depois do desenvolvimento do turismo rural. Conclui-se que, apesar das mudanças que a atividade turística gerou no habitus, as mulheres desta comunidade preserva a sua organização social através do trabalho, as ações de legado, e um interesse coletivo para melhorar suas condições de vida.

Las mineralizaciones filonianas de fluorita (galena del Calar de San José (sierra de Baza, cordilleras Béticas

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Torres-Ruiz, J.

1984-08-01

Full Text Available The F-(Pb, Zn, Ba district of Sierra de Baza are a (Southeastern Spain is mainly constituted by fluorite-(galene stratiform and stratabound mineralizations which are included in Carbonate levels of Ladinian-Carnian age. These levels also contain vein mineralizations but only in certain zones as de Calar de San José and the Calar de Santa Bárbara. This paper deals with the main structural and mineralogical characteristics of the vein mineralizations and their relations with the geological context evolution. Special attention is given to the tectonic and the spatial association with the stratiform and stratabound, mineralizations of sedimentary/diagenetic character. Two types of vein mineralizations may be distinguished : one type is represented by small "in situ" remobilizations, from the stratiform and stratabound mineralizat ioos, which have been formed during the final stages of alpine deformations; the other one has been formed before Alpina Orogeny and probably in direct relation with an intratriassic tectonic phase.

El distrito de F-(Pb, Zn, Ba de la Sierra de Baza (al SE de España está constituido fundamentalmente por mineralizaciones estratiformes y estratoligadas de fluorita-(galena, enclavadas en niveles carbonatados del Ladiniense Superior-Carniense. En estos mismos niveles, en algunos sectores como los del Calar de San José y Calar de Santa Bárbara, que constituyen el área de mayor importancia de este distrito minero, dichas mineralizaciones coexisten con otras de tipo filoniano. La presente nota trata esencialmente de las principales características estructurales y mineralógicas de las mineralizaciones filonianas y de sus relaciones con la evolución del contexto geológico, muy especialmente en lo que se refiere a la tectónica y a su asociación espacial con las mineralizaciones estratiformes y estratoligadas de carácter sedimentario/diagenético. Se han diferenciado dos tipos de mineralizaciones filonianas: unas

A interação existencial entre seres humanos e animais no romance Pedro Páramo, de Juan Rulfo = The existential interaction between human beings and animals in the novel Pedro Páramo by Juan Rulfo

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Evely Vânia Libanori

2013-01-01

Full Text Available Em Pedro Páramo, de Juan Rulfo, o corvo, o cavalo e o gato são animais que mantêm estreita ligação existencial com o ser humano. A interação ser humano-animal é fundamental para o entendimento de temas filosóficos presentes no romance, como a identidade humana, o outro, a morte. O corvo é o batedor da chegada de Juan Preciado no mundo da morte. O cavalo de Miguel Páramo é o único ser que sofre, verdadeiramente, a morte do seu tutor. O gato é o animal que faz visitas noturnas a Susana San Juan, com quem estabelece um diálogo somente inteligível para os dois. A integração entre personagens humanas e animais em Pedro Páramo mostra a comunicação entre seres pertencentes a diferentes espécies animais. No romance, seres humanos, corvos, cavalos e gatos têm mais semelhanças entre si do que a cultura ocidental antropocêntrica conhece.In Pedro Páramo by Juan Rulfo, the raven, the horse and the cat are animals that maintain a close existential link to the human beings. In the book, this human being/animal interaction is fundamental to the understanding of philosophical themes such as the identity, the other, and the death. In the story, the raven is the escort of Juan Preciado arrival into the death world. Miguel Páramos’s horse is the only being that genuinely suffers because of the death of its guardian, that is, Miguel’s death. The cat is the animal that make night visits to Susana San Juan to whom it speaks in a way that is understood by the two of them only. The connection between human and animal characters in Pedro Páramo shows the communication among beings that belong to different animal species. In the novel, human beings, ravens, horses, and cats are much more alike than the western anthropocentric culture has it.

Netivestlus Pedro Gadanhoga = An online conversation with Pedro Gadanho / Pedro Gadanho ; intervjueerinud Triin Ojari

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Gadanho, Pedro

2010-01-01

Pedro Gadanho oma raamatusarjast "Beyond", mille mõte on eelistada arhitektuurist ja linnast kirjutamisel fiktsionaalset tehnikat, avastada eksperimentaalseid kirjutamisviise. Kirjutajateks on kriitikud ja arhitektid

Pedro Salinas y el teatro desde dentro (Pedro Salinas and Theatre from Within

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Yolanda Benítez Vega

2013-12-01

Full Text Available Resumen: Pedro Salinas y el teatro, desde dentro” es el título de este artículo cuya finalidad consiste en realizar un recorrido por la vocación teatral de Pedro Salinas desde sus primeros años hasta el final de sus días: su asistencia a representaciones teatrales, sus contactos con el teatro y sus proyectos como autor dramático tanto los que se realizaron como los que no llegaron a materializarse. El propósito es adentrarnos en el alma teatral del poeta: cómo, cuándo, por qué surge su vocación por el arte escénico, insistiendo en la necesidad de rescatar la faceta de dramaturgo de Pedro Salinas como una constante más en la labor del poeta, profesor y crítico.Abstract: "Pedro Salinas and the theatre, from inside " it is the title of this article which purpose consists of realizing a tour for Pedro Salinas's theatrical vocation from his first years until the end of his days: his assistance to theatrical representations, his contacts with the theatre and his projects like dramatic author so much those who were realized as those who did not manage to materialize. The intention is to enter the theatrical soul of the poet: how, when, why his vocation arises for the scenic art, insisting on the need to rescue the playwright's facet of Pedro Salinas as one more constant in the labor of the poet, teacher and critic.

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

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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

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

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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.

Diversidad florística y conservación del Santuario Regional de Piura Manglares San Pedro de Vice-Sechura

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Manuel Charcape-Ravelo

2013-05-01

Full Text Available El presente trabajo se llevó a cabo con la finalidad de conocer la composición de las fanerógamas del Santuario Regional de Piura Manglares San Pedro de Vice-Sechura. Su importancia radica en que es el manglar más austral del Pacífico de Sudamérica. Dicho trabajo fue realizado desde abril del 2000 hasta febrero del 2004. Para la realización del presente estudio se realizaron visitas periódicas cada dos meses al lugar, se colectaron las plantas bajo procedimientos estándar. Las muestras se determinaron en el lugar y algunas fueron llevadas al laboratorio de Botánica de la Universidad Nacional de Piura y al laboratorio de Botánica Fanerogámica de la Universidad Nacional de Trujillo para su determinación definitiva; luego, las muestras se depositaron en el herbario en formación de la Universidad Nacional de Piura. El manglar consiste en primer lugar de árboles y arbustos de Avicennia germinans (L. L. (Verbenaceae «mangle prieto». En el presente inventario se documentan un total de 44 especies de fanerógamas correspondiendo a 36 géneros en 21 familias para el manglar.

Long-term decrease in satellite vegetation indices in response to environmental variables in an iconic desert riparian ecosystem: the Upper San Pedro, Arizona, United States

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Nguyen, Uyen; Glenn, Edward P.; Nagler, Pamela L.; Scott, Russell L.

2015-01-01

The Upper San Pedro River is one of the few remaining undammed rivers that maintain a vibrant riparian ecosystem in the southwest United States. However, its riparian forest is threatened by diminishing groundwater and surface water inputs, due to either changes in watershed characteristics such as changes in riparian and upland vegetation, or human activities such as regional groundwater pumping. We used satellite vegetation indices to quantify the green leaf density of the groundwater-dependent riparian forest from 1984 to 2012. The river was divided into a southern, upstream (mainly perennial flow) reach and a northern, downstream (mainly intermittent and ephemeral flow) reach. Pre-monsoon (June) Landsat normalized difference vegetation index (NDVI) values showed a 20% drop for the northern reach (P  0·05). NDVI and enhanced vegetation index values were positively correlated (P deterioration of the riparian forest in the northern reach.

Pedro Ferreira, um escultor baiano desconhecido Pedro Ferreira, an unknown sculptor from Bahia

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Maria Helena Ochi Flexor

2008-12-01

Full Text Available Este trabalho é o resultado do início de um estudo sobre o escultor Pedro Ferreira. Embora seja autor de obras importantes, passa quase desapercebido na historiografia da arte baiana. Trata-se de artista que pertence ao tempo em que o neoclassicismo se impunha à cultura Ocidental, porém, ainda restavam, na Bahia, as práticas do período barroco, em especial a cópia dos grandes mestres renascentistas. Pedro Ferreira foi um desses artistas e teve como principal inspirador Murillo, da escola espanhola.This work is the result of a beginning study about a sculptor Pedro Ferreira. Although he was author of important workmanships, he passes almost unknown in the bahian history of art. He was an artist who lives belongs a time when the neoclassicismo was imposed to the Occidental culture, but, still remained in Bahia, the practical ones of the baroque period, in special the copy of the great Renaissance masters. Pedro Ferreira was one of these artists and has inspired, as main artist, Murillo, of the Spanish school.

Factores de riesgo relacionados al uso de drogas ilegales: perspectiva crítica de familiares y personas cercanas en un centro de salud público en San Pedro Sula, Honduras Fatores de risco relacionados ao uso de drogas ilegais, perspectiva crítica de familiares e pessoas próximas, em um centro da saúde público em San Pedro Sula, Honduras Risk factors related to the use of illegal drugs: the critial perspective of drug users' relatives and acquaintances at a public health center in San Pedro Sula, Honduras

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Gladys Magdalena Rodríguez Funes

2009-01-01

Full Text Available En este estudio, se presentan datos cuantitativos del estudio multicéntrico, multimétodos, de corte transversal realizado en un centro de salud público en San Pedro Sula, en Honduras. Su objetivo es describir la perspectiva crítica que tienen los familiares o personas, que se consideran afectadas por tener a alguien cercano que usa o ha usado drogas ilegales, con relación a factores de riesgo. Los datos se obtuvieron mediante una encuesta con 100 entrevistados. La mayor parte de las personas informantes eran mujeres pobres con baja escolaridad. Los consumidores eran en su mayoría hombres con edad promedio de 23,3 años. La droga más usada fue la marihuana (78% seguida de crack/cocaína (72%, pegamento/inhalantes (27%, alucinógenos (éxtasis/LSD (3%, anfetaminas/estimulantes (1% y heroína (1%. Los factores de riesgo identificados fueron la experiencia previa con alcohol/tabaco, el tener amigos/amigas que usan drogas, la falta de conocimiento, la baja autoestima , la edad, entre otros factores personales, familiares y sociales. Se concluye que es necesario fortalecer las medidas de prevención y protección.São apresentados, aqui, dados quantitativos de um estudo multicêntrico, multimétodos, de corte transversal, realizado em um centro de saúde pública em San Pedro Sula, Honduras. O objetivo foi descrever a perspectiva crítica dos membros da família ou pessoas que se sentem afetadas por terem alguém próximo que usa ou usou drogas ilegais, em relação aos fatores de risco. Os dados foram coletados através de questionário aplicado em 100 indivíduos. A maioria era composta por mulheres pobres, com pouca escolaridade. Os consumidores eram majoritariamente varões, com idade média de 23,3 anos. A droga mais utilizada foi a maconha (78%, seguida por crack/cocaína (72%, cola/inalantes (27%, alucinógenos (ecstasy/LSD (3%, anfetaminas/estimulantes (1%, heroína (1%. Entre os fatores de risco identificados estão: experi

VizieR Online Data Catalog: The kinematics of the C II λ6578 line in PNe (Richer+, 2017)

Science.gov (United States)

Richer, M. G.; Suarez, G.; Lopez, J. A.; Garcia Diaz, M. T.

2018-05-01

All of our observations are drawn from the San Pedro Martir Kinematic Catalogue of Planetary Nebulae (henceforth, SPM Catalogue; Lopez et al. 2012RMxAA..48....3L; http://kincatpn.astrosen.unam.mx/). Most of these spectra were acquired with the Manchester Echelle Spectrograph (MES: Meaburn et al. 1984MNRAS.210..463M, 2003RMxAA..39..185M) attached to the 2.1 m telescope at the Observatorio Astronomico Nacional on the Sierra San Pedro Martir (OAN-SPM). The MES uses interference filters to isolate the spectral order of interest, order 87 in this case, covering approximately the wavelength range 6545-6595 Å and containing the [N II] λλ6548, 6584, He II λ6560 (when present), Hα, and C II λ6578 emission lines. For most of the observations, a 150 μm slit was used, resulting in a spectral resolution of approximately 11 km/s when converted to velocity. (2 data files).

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

Espacios naturales en zonas urbanas. Análisis comparado de la ciudad alemana de Halle y las chilenas de San Pedro de la Paz y Talcahuano

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Priego González de Canales, Carlos

2010-04-01

Full Text Available In order to study the social perception and valorization that people of different social statuses and different cultural cities have about nature, an international cooperative project was started between Germany and Chile. Due to the comparative nature of the project, districts of upper-middle and lower-middle class neighborhoods in both countries were chosen. In Germany, two neighborhoods (Silberhöhe and Paulusviertel were chosen from the city of Halle whereas in Chile one neighborhood from the city of Talcahuano (Tumbes and the city of San Pedro de la Paz (both in the Region VIII, Biobío were selected. People from all four study areas were surveyed with the same questions. The results revealed a differential use and perception of the urban landscape by people of different social and cultural backgrounds. Likewise, in Chile a person’s social condition was found to determine the possibility of his/her access to green areas and recreational zones.

Con el objetivo de estudiar la percepción social y la valoración de la naturaleza por personas de diferente estrato social y en ciudades de diferente cultura, se inició un proyecto de cooperación internacional entre Alemania y Chile. Para la realización de este proyecto comparativo se escogieron barrios de clase media-alta y media-baja en cada uno de los países. En Alemania se estudiaron los barrios de Silberhöhe y Paulusviertel de la ciudad de Halle, y en Chile el sector de Tumbes (Comuna de Talcahuano y la Comuna de San Pedro de la Paz, VIII Región del Biobío. La herramienta base para el estudio fue la aplicación de una encuesta base con las mismas preguntas para cada uno de los países. Se determinó cómo las personas de diferentes procedencias sociales y culturales presentaban un diferente uso y percepción del paisaje urbano. De la misma manera, en Chile la condición social del ciudadano condiciona la posibilidad de acceso a áreas verdes y de recreo.

Pedro Zamora and Pedro and Me in Requiem: Scoring the Loss

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A. David Lewis

2015-09-01

Full Text Available When originally published at the turn of the century, 'Pedro and Me: Friendship, Loss, and What I Learned' (2000 was riding both the popularity of its reality television roots ''and the growing awareness of homosexuality in the popular consciousness. At that time, too, Macmillan publisher Henry Holt had its own website set up to support Winick’s work; it featured interviews, tour dates, and, most importantly, omitted scenes originally drafted but not completed by the author. The opportunity to finally include this apocrypha was missed in the newer 2009 addition, as the publisher opted for a one-page afterword.  This paper discusses how this constitutes a missed opportunity to reconnect with Pedro. In as much as the original graphic novel—or 'any' graphic novel—is a construction, the tenth anniversary edition of 'Pedro and Me' disallowed the excluded raw material from being included in audience’s score-overdue deconstruction of the work.

GEOPROCESAMIENTO APLICADO AL ANALISIS DEL USO DE LA TIERRA EN EL MUNICIPIO DE SAN PEDRO DE YCUAMANDYYÚ, PARAGUAY

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Oscar Agustín Torres Figueredo

2002-10-01

Full Text Available El municipio de San Pedro de Ycuamandyyú está ubicado en el noroeste de la región oriental del Paraguay. Los objetivos de este trabajo constituyen la elaboración y el análisis del mapa del uso de la tierra para la planificación de actividades forestales en la zona, para los cuales se utilizaron técnicas de cartografía, sensores remotos y (SIG Sistemas de Informaciones Geográficas, que posibilitaron el análisis de informaciones provenientes de imágenes satelitales LANDSAT TM 5, de cartas topográficas y de (GPS Sistema de Posicionamiento Global, que permitió el procesamiento de datos en el programa Idrisi 2.0 para la confección de un mapa que posibilitó el análisis sobre la situación del uso de la tierra en el municipio. Se distinguió categorías predominantes como praderas altas o campos naturales, uso agropecuario y praderas bajas o bañados, siendo la cobertura forestal con valor inferior al 25%. Se concluyó que el municipio presenta bastantes áreas de campos naturales y uso agropecuario que podrían utilizarse para actividades de reforestación, sea con especies nativas o exóticas de rápido crecimiento con la finalidad de obtener valores de cobertura forestal en equilibrio con las demás categorías de uso de la tierra.

Reproducibility of the Portuguese version of the PEDro Scale Reprodutibilidade da Escala de Qualidade PEDro em português

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Silvia Regina Shiwa

2011-10-01

Full Text Available The objective of this study was to test the inter-rater reproducibility of the Portuguese version of the PEDro Scale. Seven physiotherapists rated the methodological quality of 50 reports of randomized controlled trials written in Portuguese indexed on the PEDro database. Each report was also rated using the English version of the PEDro Scale. Reproducibility was evaluated by comparing two separate ratings of reports written in Portuguese and comparing the Portuguese PEDro score with the English version of the scale. Kappa coefficients ranged from 0.53 to 1.00 for individual item and an intraclass correlation coefficient (ICC of 0.82 for the total PEDro score was observed. The standard error of the measurement of the scale was 0.58. The Portuguese version of the scale was comparable with the English version, with an ICC of 0.78. The inter-rater reproducibility of the Brazilian Portuguese PEDro Scale is adequate and similar to the original English version.O objetivo foi testar a reprodutibilidade da versão em português da Escala de Qualidade PEDro. Sete fisioterapeutas avaliaram a qualidade metodológica de 50 estudos controlados aleatorizados em português, indexados na base de dados PEDro. Cada artigo já possuía sua respectiva avaliação nessa base de dados, utilizando a versão em inglês da escala PEDro. Foi calculada a confiabilidade da escala, assim como foi comparada a pontuação total de consenso com a pontuação das avaliações utilizando a escala em inglês. Os coeficientes kappa variaram entre 0,53 e 1,00 para itens individuais, e um coeficiente de correlação intraclasse (CCI de 0,82 foi obtido para a pontuação total. O erro-padrão de medida foi de 0,58 ponto. A versão em português da escala foi comparada com a versão em inglês e foi observado um CCI de 0,78. A reprodutibilidade da versão em língua portuguesa da Escala de Qualidade PEDro foi adequada e similar à versão em inglês.

Y el claustro se abrió al siglo: Pedro Zulen y el Boletín Bibliográfico de la Biblioteca de San Marcos (1923-1924Y el claustro se abrió al siglo: Pedro Zulen y el Boletín Bibliográfico de la Biblioteca de San Marcos (1923-1924

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Alberto Loza Nehmad

2011-05-01

Full Text Available En 1923, Pedro Zulen (1898-1925 fundó el Boletín bibliográfico de la Bibliotecade la Universidad Nacional Mayor de San Marcos. La publicación delboletín fue resultado de la modernización de la biblioteca impulsada por elrector Manuel Vicente Villarán y conducida por Zulen quien publicó losquince números del primer volumen, que se cierra en 1924. En esos dosaños volcó su talento intelectual y editorial en el boletín e hizo de él unapublicación académica reconocida a nivel internacional. En esa tarea, él sedesempeñó como el puente entre dos generaciones. Dirigió, sobre todo, aun grupo de estudiantes que había salido de la adolescencia durante elmovimiento de la Reforma Universitaria. Ellos se consolidaron intelectualmente,como colectivo, en las tareas de la publicación del Boletín. Estegrupo, de la Generación del Centenario, tuvo después un destacado papelen la vida intelectual peruana del siglo XX.

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.

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.

Cross-shelf transport into nearshore waters due to shoaling internal tides in San Pedro Bay, CA

Science.gov (United States)

Noble, Marlene A.; Burt Jones,; Peter Hamilton,; Xu, Jingping; George Robertson,; Rosenfeld, Leslie; John Largier,

2009-01-01

In the summer of 2001, a coastal ocean measurement program in the southeastern portion of San Pedro Bay, CA, was designed and carried out. One aim of the program was to determine the strength and effectiveness of local cross-shelf transport processes. A particular objective was to assess the ability of semidiurnal internal tidal currents to move suspended material a net distance across the shelf. Hence, a dense array of moorings was deployed across the shelf to monitor the transport patterns associated with fluctuations in currents, temperature and salinity. An associated hydrographic program periodically monitored synoptic changes in the spatial patterns of temperature, salinity, nutrients and bacteria. This set of measurements show that a series of energetic internal tides can, but do not always, transport subthermocline water, dissolved and suspended material from the middle of the shelf into the surfzone. Effective cross-shelf transport occurs only when (1) internal tides at the shelf break are strong and (2) subtidal currents flow strongly downcoast. The subtidal downcoast flow causes isotherms to tilt upward toward the coast, which allows energetic, nonlinear internal tidal currents to carry subthermocline waters into the surfzone. During these events, which may last for several days, the transported water remains in the surfzone until the internal tidal current pulses and/or the downcoast subtidal currents disappear. This nonlinear internal tide cross-shelf transport process was capable of carrying water and the associated suspended or dissolved material from the mid-shelf into the surfzone, but there were no observation of transport from the shelf break into the surfzone. Dissolved nutrients and suspended particulates (such as phytoplankton) transported from the mid-shelf into the nearshore region by nonlinear internal tides may contribute to nearshore algal blooms, including harmful algal blooms that occur off local beaches.

Geoprocesamiento aplicado al analisis del uso de la tierra en el municipio de San Pedro de Ycuamandyyú, Paraguay.

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Oscar Agustín Torres Figueredo

2010-08-01

Full Text Available El municipio de San Pedro de Ycuamandyyú está ubicado en el noroeste de la región oriental del Paraguay. Los objetivos de este trabajo constituyen la elaboración y el análisis del mapa del uso de la tierra para la planificación de actividades forestales en la zona, para los cuales se utilizaron técnicas de cartografía, sensores remotos y (SIG Sistemas de Informaciones Geográficas, que posibilitaron el análisis de informaciones provenientes de imágenes satelitales LANDSAT TM 5, de cartas topográficas y de (GPS Sistema de Posicionamiento Global, que permitió el procesamiento de datos en el programa Idrisi 2.0 para la confección de un mapa que posibilitó el análisis sobre la situación del uso de la tierra en el municipio. Se distinguió categorías predominantes como praderas altas o campos naturales, uso agropecuario y praderas bajas o bañados, siendo la cobertura forestal con valor inferior al 25%. Se concluyó que el municipio presenta bastantes áreas de campos naturales y uso agropecuario que podrían utilizarse para actividades de reforestación, sea con especies nativas o exóticas de rápido crecimiento con la finalidad de obtener valores de cobertura forestal en equilibrio con las demás categorías de uso de la tierra.

Geoprocesamiento aplicado al analisis del uso de la tierra en el municipio de San Pedro de Ycuamandyyú , Paraguay

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Oscar Agustín Figueredo Torres

2002-01-01

Full Text Available El municipio de San Pedro de Ycuamandyyú está ubicado en el noroeste de la región oriental del Paraguay. Los objetivos de este trabajo constituyen la elaboración y el análisis del mapa del uso de la tierra para la planificación de actividades forestales en la zona, para los cuales se utilizaron técnicas de cartografía, sensores remotos y (SIG Sistemas de Informaciones Geográficas, que posibilitaron el análisis de informaciones provenientes de imágenes satelitales LANDSAT TM 5, de cartas topográficas y de (GPS Sistema de Posicionamiento Global, que permitió el procesamiento de datos en el programa Idrisi 2.0 para la confección de un mapa que posibilitó el análisis sobre la situación del uso de la tierra en el municipio. Se distinguió categorías predominantes como praderas altas o campos naturales, uso agropecuario y praderas bajas o bañados, siendo la cobertura forestal con valor inferior al 25%. Se concluyó que el municipio presenta bastantes áreas de campos naturales y uso agropecuario que podrían utilizarse para actividades de reforestación, sea con especies nativas o exóticas de rápido crecimiento con la finalidad de obtener valores de cobertura forestal en equilibrio con las demás categorías de uso de la tierra.

Issues of affinity: exploring population structure in the Middle and Regional Developments Periods of San Pedro de Atacama, Chile.

Science.gov (United States)

Torres-Rouff, Christina; Knudson, Kelly J; Hubbe, Mark

2013-11-01

The Middle Period (AD 400-1000) in northern Chile's Atacama oases is characterized by an increase in social complexity and regional interaction, much of which was organized around the power and impact of the Tiwanaku polity. Despite the strong cultural influence of Tiwanaku and numerous other groups evident in interactions with Atacameños, the role of immigration into the oases during this period is unclear. While archaeological and bioarchaeological research in the region has shown no evidence that clearly indicates large groups of foreign immigrants, the contemporary increase in interregional exchange networks connecting the oases to other parts of the Andes suggests residential mobility and the possibility that movement of people both into and out of the oases accompanied these foreign influences. Here, we analyze biodistance through cranial non-metric traits in a skeletal sample from prehistoric San Pedro de Atacama to elucidate the extent of foreign influence in the oases and discuss its implications. We analyzed 715 individuals from the Middle Period (AD 400-1000) and later Regional Developments Period (AD 1000-1450), and found greater phenotypic differences between Middle Period cemeteries than among cemeteries in the subsequent period. We argue that this greater diversity extends beyond the relationship between the oases and the renowned Tiwanaku polity and reflects the role of the oases and its different ayllus as a node and way station for the Middle Period's myriad interregional networks. Copyright © 2013 Wiley Periodicals, Inc.

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

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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.

LA EVALUACIÓN DEL IMPACTO AMBIENTAL Y EL DESARROLLO SUSTENTABLE. ESTUDIO DE CASO SAN PEDRO MIXTEPEC, JUQUILA, OAXACA.

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Carlos Espinoza-Nájera

2012-01-01

Full Text Available La problemática en materia de impacto ambiental en México está referida a que no se ha realizado una evaluación sobre su efectividad como instrumento de la política ambiental, por lo que es importante conocer si dicho instrumento cumple o coadyuva con los principios básicos del desarrollo sustentable, considerando que debe evolucionar y estar en un proceso de mejora continua. Debe garantizarse, efectivamente, el enfoque preventivo que brinde certeza acerca de la factibilidad ambiental de los diversos proyectos con los cuales se busca promover el desarrollo. En este trabajo se aplicó un sistema de investigación hipotético-deductivo, a través del método empírico descriptivo y correlacional, realizando la recopilación, análisis y evaluación de información existente, principalmente de las manifestaciones de impacto ambiental de proyectos de desarrollo con dictamen técnico, en San Pedro Mixtepec, Juquila, Oaxaca. El resultado demuestra que la información es superficial, y no aporta conocimiento científico sobre los verdaderos impactos que generará el proyecto o actividad al medio ambiente y a los recursos naturales. Se puede concluir que dichos documentos desempeñan un papel preponderante, ya que permiten identificar los impactos ambientales negativos y, al mismo tiempo, armonizar estos efectos aplicando medidas de prevención o mitigación que favorezcan el equilibrio entre el desarrollo y la conservación del ambiente.

Evaluación de la gestión en el Parque Regional de las Salinas y Arenales de San Pedro del Pinatar (Murcia

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Gustavo A. Ballesteros Pelegrín

2014-01-01

Full Text Available El Parque Regional de las Salinas y Arenales de San Pedro del Pinatar es un territorio multifuncional desde el punto de vista social, económico y ambiental, donde es imposible separar y, por tanto gestionar de forma independiente, las tramas paisajísticas y ecológicas de las tramas socioeconómicas. Para su gestión, la Administración se apoya en el Plan de Ordenación de los Recursos Naturales aprobado en 1995, que sin embargo ha sido ejecutado en el 50 % de su articulado. Se desarrollan diversas iniciativas de conservación de fauna y flora silvestre, recogida de residuos sólidos, una adecuada información al visitante y mejora del conocimiento de los diferentes elementos de los espacios protegido. Sin embargo la participación social es escasa, la Junta Rectora se ha reunido en solo cuatro ocasiones, la última en 2001, se han producido desarrollos urbanísticos en la periferia del Parque que producen deterioro paisajístico y se han desarrollado una serie de infraestructuras que han reducido en unas 7 hectáreas la superficie protegida.

Institutions and Societal Impacts of Climate in the Lower Colorado and San Pedro Basins of the U.S.-Mexico Border Region

Science.gov (United States)

Varady, R. G.; Wilder, M.; Morehouse, B. J.; Garfin, G. M.

2007-05-01

The U.S. Southwest and Mexico border region feature two prominent river basins, the Colorado and Rio Grande, and ecologically important sub-basins such as the San Pedro. The area within which these transboundary basins lie is characterized by overall aridity and high climatic variability over seasonal to decadal and longer time scales. Throughout human occupation, numerous and diverse strategies for buffering climate impacts have emerged. The most notable response has been an increasingly complex system of institutions and structures designed to buffer water scarcity. The Colorado River Compact, and the laws governing allocation of waters from the Rio Grande River, together with the dams, hydropower generators, canals and other engineered features, represent two of the most complex systems. Drought nevertheless remains a looming specter across much of the binational border region. Institutional mechanisms for responding to drought range from awareness-raising and capacity-building efforts, to implementation of formal drought plans, to storing water to make up for deficits, and water conservation rules that become increasingly stringent as drought intensifies. A number of formal and informal binational institutions operate in the region. Some are venerable, like the century-old International Boundary and Water Commission (IBWC) and its Mexican counterpart the Comision Internacional de Limites y Agua (CILA). Others, like the Border Environment Cooperation Commission and the North American Development Bank, were created in the mid-1990s with the North American Free Trade Agreement. These institutions, both domestic and transnational, operate in a complex binational, bicultural environment with contrasting legal and administrative traditions. Under such constraints, they manage water resources and ecosystems and attempt to improve water and sanitation infrastructure in the context of deep and extended drought. But in spite of their efforts, society and natural habitat

Factores explicativos de la disposición a pagar por atributos culturales en nuez de Castilla

OpenAIRE

Luna Méndez, Nexeai; Jaramillo Villanueva, José Luis; Ramírez Juárez, Javier

2016-01-01

[EN] The aim of the study was to determine the explanatory factors of the willingness to pay (WTP) a price premium for consuming local Castilla walnut versus the imported one in the region of “Sierra Nevada”, state of Puebla. Data were gathered from 216 questionnaires administered to consumers in three cities: Puebla capital, San Pedro Cholula and Atlixco. To explain the WTP, an econometric probit model with multiple intervals was estimated. A WTP a premium of 10 % for the attribute “local” w...

Biogeochemical Insights into B-Vitamins in the Coastal Marine Sediments of San Pedro Basin, CA

Science.gov (United States)

Monteverde, D.; Berelson, W.; Baronas, J. J.; Sanudo-Wilhelmy, S. A.

2015-12-01

Coastal marine sediments support a high abundance of mircoorganisms which play key roles in the cycling of nutrients, trace metals, and carbon, yet little is known about many of the cofactors essential for their growth, such as the B-vitamins. The suite of B-vitamins (B1, B2, B6, B7, B12) are essential across all domains of life for both primary and secondary metabolism. Therefore, studying sediment concentrations of B-vitamins can provide a biochemical link between microbial processes and sediment geochemistry. Here we present B-vitamin pore water concentrations from suboxic sediment cores collected in September 2014 from San Pedro Basin, a silled, low oxygen, ~900 m deep coastal basin in the California Borderlands. We compare the B-vitamin concentrations (measured via LCMS) to a set of geochemical profiles including dissolved Fe (65-160 μM), dissolved Mn (30-300 nM), TCO2, solid phase organic carbon, and δ13C. Our results show high concentrations (0.8-3nM) of biotin (B7), commonly used for CO2 fixation as a cofactor in carboxylase enzymes. Thiamin (B1) concentrations were elevated (20-700nM), consistent with previous pore water measurements showing sediments could be a source of B1 to the ocean. Cobalamin (B12), a cofactor required for methyl transfers in methanogens, was also detected in pore waters (~4-40pM). The flavins (riboflavin [B2] and flavin mononucleotide[FMN]), molecules utilized in external electron transfer, showed a distinct increase with depth (10-90nM). Interestingly, the flavin profiles showed an inverse trend to dissolved Fe (Fe decreases with depth) providing a potential link to culture experiments which have shown extracellular flavin release to be a common trait in some metal reducers. As some of the first B-vitamin measurements made in marine sediments, these results illustrate the complex interaction between the microbial community and surrounding geochemical environment and provide exciting avenues for future research.

PEDRO (Petroleum Electronic Data Reporting Option) user guide

Energy Technology Data Exchange (ETDEWEB)

1990-11-01

PEDRO is an electronic data communications product that simplifies filing and transmission of petroleum survey data. Your burden is significantly reduced as PEDRO eliminates paperwork, provides immediate onsite correction of data errors, and reduces the need for followup calls and survey resubmission. PEDRO provides an online error-checking process that highlights discrepancies. This permits you to enter and check data before transmitting to EIA. EIA then combines and reformats the data from different users for use by analytical and reporting programs. PEDRO is available at no cost to the user. Formal training is not required since installation, data processing, and transmission are done by interactive, user-friendly menu options. The PEDRO system is divided into three functions: (1) data processing, (2) transmitting data to EIA, and (3) EIA processing. 28 figs.

La vida en torno al café: marginación social de pequeños productores en San Pedro Cafetitlán, Oaxaca, México

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Israel Morales Becerra

2013-03-01

Full Text Available Se presenta una descripción etnográfica del trabajo de campo realizado en San Pedro Cafetitlán, Oaxaca, México sobre la situación de marginación social derivada de la implementación del modelo económico neoliberal; se hace una interpretación del significado que tiene el cultivo del café en la vida de los pobladores. Destaca el hecho de que las generaciones mayores de 60 años aun valoran el recurso, tienen identidad con la tierra y esperanzas en su café; sin embargo, para las nuevas generaciones el café ha dejado de ser un recurso importante debido a que no es posible subsistir de dicho cultivo, por lo que muchos han preferido vender sus tierras y emigrar. La  desintegración social causada por el fenómeno de la migración ha puesto en riesgo la conservación de costumbres y tradiciones culturales generadas a principios del siglo veinte en esta  comunidad

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...

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

OpenAIRE

Lamberti, María Julieta

2010-01-01

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

El agua y los territorios hídricos en la Región Metropolitana de Santiago de Chile. Casos de estudio: Tiltil, Valle de Mallarauco y San Pedro de Melipilla

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Tesser Obregón, Claudio Ernesto Esteban

2013-06-01

Full Text Available The rural area of the Santiago Metropolitan Region is a combination of natural, social, economic and technical factors that give origin to several territories. If we consider those in which water resources play a significant role in carrying out agricultural activity, several different «water territories» can be identified in the Tiltil, Valle de Mallarauco and San Pedro de Melipilla areas. In these cases the study allowed us to shed light upon and discuss several important points regarding the territorial approach to water resources and water management in a model that favors the actions of private parties, such as: the extension of the agricultural use of the water resources, the conflicts and problems over its control and the resulting water territories that have come about as a result of the various assessments of a liberal management system. This has been done with the intention of contributing, from a Geographical point of view, thoughts geared towards achieving a comprehensive and sustainable management of the water resources in Chile.El espacio rural de la Región Metropolitana de Santiago de Chile es una combinación de factores naturales, sociales, económicos y técnicos que dan origen a diversos territorios. Si consideramos aquellos donde el recurso hídrico tiene un papel predominante en el desarrollo de las actividades agrícolas, se pueden identificar distintos «territorios hídricos» en las áreas de Tiltil, Valle de Mallarauco y San Pedro de Melipilla. El estudio de estos casos permitió poner en evidencia y discutir un cierto número de puntos importantes concernientes al enfoque territorial de los recursos hídricos y de la gestión del agua en un modelo que privilegia la acción de los privados, tales como: la dimensión espacial del uso agrícola de los recursos hídricos, los conflictos y problemas por su control y los consecuentes territorios hídricos que han surgido como resultado de diversas valorizaciones de un

Reproducibility of the Portuguese version of the PEDro Scale

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Silvia Regina Shiwa

2011-10-01

Full Text Available The objective of this study was to test the inter-rater reproducibility of the Portuguese version of the PEDro Scale. Seven physiotherapists rated the methodological quality of 50 reports of randomized controlled trials written in Portuguese indexed on the PEDro database. Each report was also rated using the English version of the PEDro Scale. Reproducibility was evaluated by comparing two separate ratings of reports written in Portuguese and comparing the Portuguese PEDro score with the English version of the scale. Kappa coefficients ranged from 0.53 to 1.00 for individual item and an intraclass correlation coefficient (ICC of 0.82 for the total PEDro score was observed. The standard error of the measurement of the scale was 0.58. The Portuguese version of the scale was comparable with the English version, with an ICC of 0.78. The inter-rater reproducibility of the Brazilian Portuguese PEDro Scale is adequate and similar to the original English version.

Auditoría Ambiental para productos lácteos San Pablito

OpenAIRE

Catucuago Toapanta, Luis Alberto

2013-01-01

Productos Lácteos San Pablito, se encuentra ubicada en la comunidad San Pablito de Agualongo, parroquia Tupigachi, cantón Pedro Moncayo en la parte norte de la provincia de Pichincha. Esta Auditoría Ambiental se centró en verificar el cumplimiento de la Legislación Ambiental y el Plan de Manejo Ambiental (PMA) propuesto en el Estudio de Impacto Ambiental (EsIA) del año 2011. La metodología del trabajo comprendió la planificación de la auditoría, visitas técnicas a la planta, evaluación del ma...

Geological literature on the San Joaquin Valley of California

Science.gov (United States)

Maher, J.C.; Trollman, W.M.; Denman, J.M.

1973-01-01

The following list of references includes most of the geological literature on the San Joaquin Valley and vicinity in central California (see figure 1) published prior to January 1, 1973. The San Joaquin Valley comprises all or parts of 11 counties -- Alameda, Calaveras, Contra Costa, Fresno, Kern, Kings, Madera, Merced, San Joaquin, Stanislaus, and Tulare (figure 2). As a matter of convenient geographical classification the boundaries of the report area have been drawn along county lines, and to include San Benito and Santa Clara Counties on the west and Mariposa and Tuolumne Counties on the east. Therefore, this list of geological literature includes some publications on the Diablo and Temblor Ranges on the west, the Tehachapi Mountains and Mojave Desert on the south, and the Sierra Nevada Foothills and Mountains on the east.

Los componentes de la variación intramuestral en la población prehistórica de San Pedro de Atacama, Chile

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Varela, Héctor Hugo

1996-01-01

Full Text Available Se presenta una síntesis de una serie de experiencias realizadas con el fin de analizar el efecto del dimorfismo sexual, la variación etaria, la deformación artificial y la variación cronológica sobre la morfología craneana de la población prehistórica de San Pedro de Atacama. La muestra está constituída por 120 cráneos de ambos sexos, de edades adulto, maduro y senil, deformados y no deformados artificialmente, pertenecientes a cementerios que cubren cuatro fases culturales del Periodo Agroalfarero (500aC-1500dC. Los ejemplares masculinos presentaron valores medios mayores que los femeninos en la mayoría de las variables analizadas. La influencia de los restantes factores se manifestó en un tercio de las medidas craneométricas. Entre las clases adulto y maduro se comprobó un incremento significativo de los promedios. El efecto de la deformación artificial se destaca principalmente por alteraciones en el crecimiento de la bóveda y, en menor medida, en la cara y en la base del cráneo. Un hallazgo de importancia lo constituye la existencia de variación cronológica indicando cambios en la estructura de la población en el período estudiado.

Assessment of runoff response to landscape changes in the San Pedro subbasin (Nayarit, Mexico) using remote sensing data and GIS.

Science.gov (United States)

Hernández-Guzmán, Rafael; Ruiz-Luna, Arturo; Berlanga-Robles, César Alejandro

2008-10-01

Results on runoff estimates as a response to land-use and land-cover changes are presented. We used remote sensing and GIS techniques with rainfall time-series data, spatial ancillary information, and the curve-number method (NRCS-CN) to assess the runoff response in the San Pedro subbasin. Thematic maps with eight land-cover classes derived from satellite imagery classification (1973, 1990, and 2000) and hydrologic soil-group maps were used as the input for the runoff calculation. About 20% to 25% of the subbasin landscape has changed since 1973, mainly as consequence of the growth of agriculture. Forest is the main cover, although further analyses indicate that forest is degrading from good to poor conditions when evaluated as a function of the spectral response. Soils with low infiltration rates, classified as the hydrological soil-group "C", were dominant in the area (52%). The overlaying of all the hydrological soil groups with the land-use map produced a total of 43 hydro-group and land-use categories for which runoff was calculated using the curve-number method. Estimates of total runoff volumes (26 x 10(6) m3) were similar for the three dates analyzed in spite of landscape changes, but there were temporal variations among the hydro-group and land-use categories as a consequence. Changes are causing the rise of covers with high runoff potential and the increase of runoff depth is expected, but it can be reversed by different management of subbasin hydro-groups and land-use units.

Ozone, nitric acid, and ammonia air pollution is unhealthy for people and ecosystems in southern Sierra Nevada, California

Science.gov (United States)

R. Cisneros; A. Bytnerowicz; D. Schweizer; S. Zhong; S. Traina; D.H. Bennett

2010-01-01

Two-week average concentrations of ozone (O3), nitric acid vapor (HNO3) and ammonia (NH3) were measured with passive samplers during the 2002 summer season across the central Sierra Nevada Mountains, California, along the San Joaquin River drainage. Elevated concentrations of the pollutants were...

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

Entrevista - Pedro Duque

OpenAIRE

Moreno-Torres Sánchez, Rosario; Sánchez Relinque, Javier

2009-01-01

Pedro Duque. El primer astronauta de nuestro país analiza la ciencia y la investigación del sector aeroespacial, en el que cada vez existe una mayor implicación de la ingeniería española en áreas como las telecomunicaciones o la informática.

Improving mapping for Ebola response through mobilising a local community with self-owned smartphones: Tonkolili District, Sierra Leone, January 2015.

NARCIS (Netherlands)

Nic Lochlainn, Laura M; Gayton, Ivan; Theocharopoulos, Georgios; Edwards, Robin; Danis, Kostas; Kremer, Ronald; Kleijer, Karline; Tejan, Sumaila M; Sankoh, Mohamed; Jimissa, Augustin; Greig, Jane; Caleo, Grazia

2018-01-01

During the 2014-16 Ebola virus disease (EVD) outbreak, the Magburaka Ebola Management Centre (EMC) operated by Médecins Sans Frontières (MSF) in Tonkolili District, Sierra Leone, identified that available district maps lacked up-to-date village information to facilitate timely implementation of EVD

Análisis comparativo de la composición de tres comunidades de Squamata de la Sierra Grande de Córdoba, Argentina

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Martori, Ricardo

1994-01-01

Full Text Available The differences and similarities of lizard assemblages can be explaned by historical or ecological factors or by the interaction of both. To examine these hypothesis we selected three communities with similar environmental influences in the Sierra Grande de Córdoba (Argentina. The sites selected where: Villa Las Rosas (31°56', 65°03', dep. San Javier on the west side of the Sierra, Tanti (310,22, 64°36' dep. Punilla on the east side of the Sierra and Achiras (33°10', 64°59' dep. Rio Cuarto on the southem extreme of the Sierra. All these sites have more than eight species of lizards. The diversity of each site is described and the novelties, sustitutions and absences for each locality are discussed and compared with three external communities. A phylogenetic hypothesis of the species involved in this study is need to resolve the biogeographic problems.

“El olor nos lleva”: identidades ecológicas como un proceso de reconocimiento social y cultural de los “recuperadores” en el Relleno Sanitario Regional de Presidente, municipio de San Pedro, departamento del Valle.

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Walter Julián Quinchoa.

2011-01-01

Full Text Available By means of environmental anthropology and ethnography, this article describes the formation of the institutionalized ecological identity of the “recuperaters” in Presidente Regional Landfill in San Pedro, Valle Department. It shows how environmental discourses, by ascribing identities to people who work in the landfill, obscure their roles. “Recuperators,” by contrast, openly discuss and think about the importance of their job. They have been forging an identity of resistance, or a political identity, through the social memory of enduring regressive policies, such as law 1259 of 2008, legally permitted by Colombia’s 1991 constitution. In this way, they propose alternatives, such as their social organization, to “struggle” for their right to recycle in the face of a growing interest by domestic and multinational companies in turning “garbage” into a business.

Pedro Lemebel: género y sociedad Pedro Lemebel: Gender and Society

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Leonidas Morales T

2009-12-01

Full Text Available El artículo, primero, examina la crónica urbana de Pedro Lemebel a la luz de sus condiciones históricas de producción y de lectura (la memoria de la dictadura y el presente de la mercancía globalizada. Luego, ofrece un análisis de algunas formas de su discurso (que afectan tanto al género sexual como a los recursos retóricos y del modo en que este discurso, como discurso crítico, piensa críticamente la vida cotidiana chilena.The following article, first, examines the urban chronicle of Pedro Lemebel in light of its historical conditions of production and reading (The memory of dictatorship and the present of globalized merchandize. Then, it offers an analysis of discourse forms (that affect both sex gender and rhetoric resources and the way in which this discourse, as a critical discourse, thinks critically of Chilean everyday life.

Searching pristine source of two gabbric plutons outcroping in Central Sierras Pampeanas Range, Argentina

International Nuclear Information System (INIS)

Daziano, C.; Ayala, R.

2010-01-01

This work is about the study of two gabbric plutons outcrop ing throughout Central Sierras Pampeanas range (Cordoba province, Argentina). San Lorenzo hill gabbric plutons is in the Upper proterozoic age whereas Cañada del Puerto belongs to the Early proterozoic.They are stock-type igneous bodies and they are intrusive s in an Upper Precambrian crystalline basement; it is mainly composed by gneisses, migmatites, schistes, marbles, amphibolite s, tact's, serpentinites and related rocks

Mineralogy and geochemistry of the Lower Cretaceous siliciclastic rocks of the Morita Formation, Sierra San José section, Sonora, Mexico

Science.gov (United States)

Madhavaraju, J.; Pacheco-Olivas, S. A.; González-León, Carlos M.; Espinoza-Maldonado, Inocente G.; Sanchez-Medrano, P. A.; Villanueva-Amadoz, U.; Monreal, Rogelio; Pi-Puig, T.; Ramírez-Montoya, Erik; Grijalva-Noriega, Francisco J.

2017-07-01

Clay mineralogy and geochemical studies were carried out on sandstone and shale samples collected from the Sierra San José section of the Morita Formation to infer the paleoclimate and paleoweathering conditions that prevailed in the source region during the deposition of these sediments. The clay mineral assemblages (fraction climatic conditions in the source regions. K2O/Al2O3 ratio of shales vary between 0.15 and 0.26, which lie in the range of values for clay minerals, particularly illite composition. Likewise, sandstones vary between 0.06 and 0.13, suggesting that the clay minerals are mostly kaolinte and illite types. On the chondrite-normalized diagrams, sandstone and shale samples show enriched light rare earth elements (LREE), flat heavy rare earth elements (HREE) patterns and negative Eu anomalies. The CIA and PIA values and A-CN-K plot of shales indicate low to moderate degree of weathering in the source regions. However, the sandstones have moderate to high values of CIA and PIA suggesting a moderate to intense weathering in the source regions. The SiO2/Al2O3 ratios, bivariate and ternary plots, discriminant function diagram and elemental ratios indicate the felsic source rocks for sandstone and shale of the Morita Formation.

Usage evaluation of the Physiotherapy Evidence Database (PEDro) among Brazilian physical therapists.

Science.gov (United States)

Elkins, Mark R; Moseley, Anne M; Pinto, Rafael Z

2015-01-01

It is unclear whether the Physiotherapy Evidence Database (PEDro) is widely and equally used by physical therapists in Brazil. As PEDro is considered a key resource to support evidence-based physical therapy, analyses of PEDro usage could reflect the extent of dissemination of evidence-based practice. To describe the usage of PEDro among the five regions of the World Confederation for Physical Therapy (WCPT) and, in more detail, in the South American region and Brazil over a 5-year period. PEDro home-page sessions and the number of searches performed were logged for a 5-year period (2010-2014). Absolute usage and relative usage were calculated for each region of the WCPT, each country in the South American region of WCPT, and each Regional Council (CREFITO) in Brazil. Europe had the highest absolute and relative usage among the five regions of the WCPT (971 searches per million-population per year), with the South American region ranked 4th in absolute terms and 3rd in relative terms (486). Within the South American region, Brazil accounted for nearly 60% of searches (755). Analysis at a national level revealed that usage per physical therapist in Brazil is very low across all CREFITOs. The highest usage occurred in CREFITO 6 with 1.3 searches per physical therapist per year. PEDro is not widely and equally used throughout Brazil. Strategies to promote PEDro and to make PEDro more accessible to physical therapists speaking Portuguese are needed.

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

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Bellos, L. I.

2010-12-01

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

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

Un conjunto singular del barroco sevillano en Granada: el Apostolado de la Basílica de las Angustias, obra de Pedro Duque Cornejo

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Manuel García Luque

2010-03-01

Full Text Available Se estudia el Apostolado escultórico que Pedro Duque Cornejo realizó entre 1713 y 1718 para la parroquia de Ntra. Sra. de las Angustias de Granada, a partir de documentación inédita que nos permite reconstruir su historia material y arrojar nueva luz sobre la presencia del artista sevillano en la ciudad. Se plantea, además, la vinculación del conjunto con la basílica romana de San Juan de Letrán.

Fine-Resolution Modeling of the Santa Cruz and San Pedro River Basins for Climate Change and Riparian System Studies

Science.gov (United States)

Robles-Morua, A.; Vivoni, E. R.; Volo, T. J.; Rivera, E. R.; Dominguez, F.; Meixner, T.

2011-12-01

This project is part of a multidisciplinary effort aimed at understanding the impacts of climate variability and change on the ecological services provided by riparian ecosystems in semiarid watersheds of the southwestern United States. Valuing the environmental and recreational services provided by these ecosystems in the future requires a numerical simulation approach to estimate streamflow in ungauged tributaries as well as diffuse and direct recharge to groundwater basins. In this work, we utilize a distributed hydrologic model known as the TIN-based Real-time Integrated Basin Simulator (tRIBS) in the upper Santa Cruz and San Pedro basins with the goal of generating simulated hydrological fields that will be coupled to a riparian groundwater model. With the distributed model, we will evaluate a set of climate change and population scenarios to quantify future conditions in these two river systems and their impacts on flood peaks, recharge events and low flows. Here, we present a model confidence building exercise based on high performance computing (HPC) runs of the tRIBS model in both basins during the period of 1990-2000. Distributed model simulations utilize best-available data across the US-Mexico border on topography, land cover and soils obtained from analysis of remotely-sensed imagery and government databases. Meteorological forcing over the historical period is obtained from a combination of sparse ground networks and weather radar rainfall estimates. We then focus on a comparison between simulation runs using ground-based forcing to cases where the Weather Research Forecast (WRF) model is used to specify the historical conditions. Two spatial resolutions are considered from the WRF model fields - a coarse (35-km) and a downscaled (10- km) forcing. Comparisons will focus on the distribution of precipitation, soil moisture, runoff generation and recharge and assess the value of the WRF coarse and downscaled products. These results provide confidence in

Análisis de vulnerabilidad ambiental de la cuenca alta del río San Pedro, estado Miranda, Venezuela

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Haideé Coromoto Marín

2017-12-01

Full Text Available Se caracterizó la vulnerabilidad ambiental por inundación y desplazamiento en comunidades asentadas en la Cuenca alta del río San Pedro, municipio Guaicaipuro, estado Miranda; Venezuela usando SIG. El área de estudio se dividió en dos zonas, una ligeramente intervenida (A y otra fuertemente intervenida (B, para obtener los mapas temáticos usados como indicadores, los cuales se estandarizaron mediante la técnica de re-clasificación asignándoles valores numéricos en una escala del 1 al 5. Los resultados muestran que la vulnerabilidad por inundación en la subcuenca siguió la siguiente tendencia: clase media (3 33.75% > clase Baja (2 31.91% > clase muy Baja (1 26.86% > clase Alta (4 6.12% > clase muy alta (5 1.37%, no obstante las clases alta y muy alta se corresponde con comunidades cercanas al río, caracterizadas por la presencia de desarrollos urbanos, alta actividad agrícola, sugiriendo un alto riesgo por inundación. La distribución espacial de la vulnerabilidad por desplazamiento sugiere que predomina la clase media (3 y baja (2, las cuales representan el 50.58% y 36.25% respectivamente, mientras que el resto de las clase como alta (4, muy baja (1 y muy alta (5 mostraron porcentajes de 9.37, 3.29 y 0.41 respectivamente. Las clases de vulnerabilidad alta y muy alta están localizadas en el área de mayor intervención (Zona B, con un patrón muy irregular asociado a suelos con altas pendientes (>30% y manejo de suelo con cultivos pocos protectores como las hortalizas, favoreciendo procesos de degradación e incidiendo en la sustentabilidad de la zona. Los resultados obtenidos han servido para discriminar cuales comunidades son más vulnerables y establecer prioridades en cuanto a la intervención para minimizar los impactos ambientales.

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.

The Emperor Dom Pedro II: his convulsive seizures when a boy O imperador Dom Pedro II: as suas crises convulsivas quando menino

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Marleide da Mota Gomes

2007-12-01

Full Text Available INTRODUCTION: Dom Pedro II, the Prince Heir and Emperor under regency, in a delicate period of the construction of the Brazilian nation, had convulsive seizures. OBJECTIVE: To investigate the convulsive seizures and related syndromes of Dom Pedro II and his family, besides the physicians in charge of the health care. METHOD: Narrative review based on primary and secondary sources. CONCLUSION: The scattered and self-limited convulsive seizures associated with physical and mental integrity favored a benign prognosis. Dom Pedro and his family presented rich history of epileptic seizures and febrile convulsion. This variety resembles the diagnosis of generalized epilepsy with febrile seizures plus that seems to be a combination of several syndromes with shared genetic susceptibility.INTRODUÇÃO: Dom Pedro, o príncipe herdeiro e imperador sob regência, em período delicado da formação da nação brasileira, apresentou crises convulsivas que geraram preocupação para o país. OBJETIVO: Investigar a história da epilepsia de Dom Pedro II e da sua família e procurar identificar quais tipos de crises epilépticas estavam presentes, além dos médicos envolvidos com os cuidados de saúde. MÉTODO: Revisão narrativa baseada em fontes primárias e secundárias. CONCLUSÃO: As crises convulsivas esparsas e auto-limitadas associadas a higidez física e mental de Dom Pedro II sugerem um prognóstico benigno. A história de epilepsia idiopática e convulsões febris no imperador e em outros membros da sua família aponta para o diagnóstico mais provável de Epilepsia Generalizada com Convulsões Febris Plus que é determinada por uma combinação de alguns tipos de manifestações epilépticas com suscetibilidade genética compartilhada.

Figuraciones, conservación y hegemonía en el proyecto de construcción de un camino en la Reserva de Biosfera Yabotí en San Pedro, Misiones - Argentina. Periodo desde el año 2012 hasta el año 2015

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Carla Antonella Cossi

2015-01-01

Full Text Available El presente trabajo se propone describir, desde una perspectivaantropológica, la manera en que un conjunto de agentesligados al turismo y a las áreas naturales protegidas –entre losque se encuentran organizaciones transnacionalesgubernamentales y no gubernamentales, funcionarios políticosy empresarios– se disputan el capital político, simbólico yeconómico necesario para definir los límites de la conservación.Nos aproximamos, así, a las relaciones de fuerzas que generanlas estrategias de conservación y turismo sustentable de losdiferentes sectores involucrados con el proyecto deconstrucción de un camino provincial, al interior de la Reservade Biosfera Yabotí y del Parque provincial Moconá, en SanPedro, Misiones-Argentina.

Anotaciones al tema del Crucificado en Pedro de Mena

OpenAIRE

López-Guadalupe, Juan Jesús

2000-01-01

We know few natural size «Crucificados» of Pedro de Mena. Or that, es very important the study of the little size «Crucificados» worked for him. Through of those «Crucificados» and the tradition of granadine's sculpture school, it can be demostrated the existence of the natural size «Crucificados» in Pedro de Mena.No disponible

77 FR 38078 - U.S. Nominations to the World Heritage List: San Antonio Franciscan Missions

Science.gov (United States)

2012-06-26

... ownership rights in U.S. World Heritage Sites, which continue to be subject only to U.S. law. Inclusion in... group should be considered as an extension to the Mexican missions of the Sierra Gorda already on the... experts in the topic in San Antonio, including Mexican World Heritage officials, concluded that the...

Anotaciones al tema del Crucificado en Pedro de Mena

Directory of Open Access Journals (Sweden)

López-Guadalupe, Juan Jesús

2000-06-01

Full Text Available We know few natural size «Crucificados» of Pedro de Mena. Or that, es very important the study of the little size «Crucificados» worked for him. Through of those «Crucificados» and the tradition of granadine's sculpture school, it can be demostrated the existence of the natural size «Crucificados» in Pedro de Mena.No disponible

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

Relaciones isotópicas Sm/Nd en rocas graníticas y miloníticas de Sierras Pampeanas del noroeste Argentino

Directory of Open Access Journals (Sweden)

Kawashita, K.

2005-04-01

Full Text Available The Velasco, Copacabana and Paimán Ranges in Sierras Pampeanas, are constituted mainly by paleozoic plutonic bodies of the Famatinian cycle (Huaco, Antinaco and Paimán and for mylonitic rocks (TIPA Shear Zone, originated as a consequence of dynamic events happening during the Upper Ordovician-Devonian. The last magmatic event of the area would probably have of devonian age (Granite San Blas. Model-ages of two stages were calculated based on 147Sm/144Nd relationships; the obtained values are closely grouped at around 1594 Ma. and the more plausible interpretation seems to be a reworking of an Early Proterozoic protolith.Las sierras de Velasco, Copacabana y Paimán, en el ambiente de Sierras Pampeanas, están constituidas principalmente por cuerpos plutónicos del Paleozoico inferior, relacionados con el ciclo Famatiniano (Granitos Huaco, Antinaco y Paimán y por rocas miloníticas (Faja Milonítica TiPA, originadas a partir de estos protolitos como consecuencia de eventos dinámicos acaecidos durante el Ordovícico superior-Devónico. El último evento magmático del área es de edad probablemente devónica (Granito San Blas. Se calcularon edades modelos de «dos estadios» en base a relaciones 147Sm/144Nd; los valores obtenidos se presentan estrechamente agrupadas en torno a 1594 Ma. y se interpretan a este basamento como un protolito del Proterozoico medio retrabajado.

Quality, language, subdiscipline and promotion were associated with article accesses on Physiotherapy Evidence Database (PEDro).

Science.gov (United States)

Yamato, Tiê P; Arora, Mohit; Stevens, Matthew L; Elkins, Mark R; Moseley, Anne M

2018-03-01

To quantify the relationship between the number of times articles are accessed on the Physiotherapy Evidence Database (PEDro) and the article characteristics. A secondary aim was to examine the relationship between accesses and the number of citations of articles. The study was conducted to derive prediction models for the number of accesses of articles indexed on PEDro from factors that may influence an article's accesses. All articles available on PEDro from August 2014 to January 2015 were included. We extracted variables relating to the algorithm used to present PEDro search results (research design, year of publication, PEDro score, source of systematic review (Cochrane or non-Cochrane)) plus language, subdiscipline of physiotherapy, and whether articles were promoted to PEDro users. Three predictive models were examined using multiple regression analysis. Citation and journal impact factor were downloaded. There were 29,313 articles indexed in this period. We identified seven factors that predicted the number of accesses. More accesses were noted for factors related to the algorithm used to present PEDro search results (synthesis research (i.e., guidelines and reviews), recent articles, Cochrane reviews, and higher PEDro score) plus publication in English and being promoted to PEDro users. The musculoskeletal, neurology, orthopaedics, sports, and paediatrics subdisciplines were associated with more accesses. We also found that there was no association between number of accesses and citations. The number of times an article is accessed on PEDro is partly predicted by how condensed and high quality the evidence it contains is. Copyright © 2017 Chartered Society of Physiotherapy. Published by Elsevier Ltd. All rights reserved.

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

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Julián N. Lescano

2015-09-01

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

Ocupantes espontáneos y derechos por la tierra en la formación de “pueblos de españoles” (Rincón de San Pedro, Buenos Aires, 1740-1860

Directory of Open Access Journals (Sweden)

Mariana Canedo

2015-01-01

Full Text Available Durante el siglo XVIII, se multiplicó la presencia de “pueblos de espa-ñoles” y villas en la frontera sur hispanoamericana. El protagonismo de ocupantes rurales en la formación de “pueblos de españoles” fue más frecuente en la campaña de Buenos Aires que en otras jurisdicciones, aunque poco se conoce sobre su proceder. El objetivo del artículo fue analizar las características de los ocupantes rurales y el rango de acción que tuvieron para solicitar el reconocimiento legal de terrenos para la formación de un pueblo en la campaña de Buenos Aires durante el siglo XVIII y parte del XIX. El análisis del caso del pueblo de San Pedro nos permitió profundizar la situación de los “ocupantes” y abrir varios inte-rrogantes sobre la regulación de los derechos por la tierra, particularmen-te sobre los pueblos y villas, en un período que suele estar vinculado a transformaciones en los derechos y en las relaciones de poder ejercidas en su puesta en práctica.

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)

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.

Biodiversidad de gasterópodos terrestres (Mollusca en el Parque Biológico Sierra de San Javier, Tucumán, Argentina

Directory of Open Access Journals (Sweden)

María José Miranda

2010-09-01

Full Text Available Se realizó un inventario y se analizaron parámetros de diversidad de la malacofauna terrestre del Parque Biológico Sierra de San Javier. Se llevaron a cabo muestreos cualitativos y cuantitativos en parcelas de 10x10m tomadas en transectas altitudinales, para un total de 22 169 especímenes recolectados. Las identificaciones taxonómicas se llevaron a cabo a nivel de especie. Se construyó una matriz de especies por parcela para analizar patrones de diversidad y se utilizaron estimadores no paramétricos (ICE, ACE, Chao 1 y Chao 2 para calcular la diversidad del Parque, el grado de completitud del muestreo y la agregación espacial de los datos. Se calcularon los índices de Shannon, Simpson, Whittaker y Jaccard. La riqueza del Parque fue estimada en 32 especies distribuidas en 21 géneros y 13 familias. Solo una especie pertenece a Caenogastropoda, el resto son Pulmonados Stylommatophora y Systellommatophora. La familia más representada fue Charopidae mientras que la especie con mayor abundancia relativa fue Adelopoma tucma. La riqueza y diversidad fue levemente mayor en chaco seco que en bosque húmedo de Yungas. Los valores de diversidad obtenidos fueron elevados en comparación con estudios previos realizados en el noroeste Argentino.

Late Quaternary offset of alluvial fan surfaces along the Central Sierra Madre Fault, southern California

Science.gov (United States)

Burgette, Reed J.; Hanson, Austin; Scharer, Katherine M.; Midttun, Nikolas

2016-01-01

The Sierra Madre Fault is a reverse fault system along the southern flank of the San Gabriel Mountains near Los Angeles, California. This study focuses on the Central Sierra Madre Fault (CSMF) in an effort to provide numeric dating on surfaces with ages previously estimated from soil development alone. We have refined previous geomorphic mapping conducted in the western portion of the CSMF near Pasadena, CA, with the aid of new lidar data. This progress report focuses on our geochronology strategy employed in collecting samples and interpreting data to determine a robust suite of terrace surface ages. Sample sites for terrestrial cosmogenic nuclide and luminescence dating techniques were selected to be redundant and to be validated through relative geomorphic relationships between inset terrace levels. Additional sample sites were selected to evaluate the post-abandonment histories of terrace surfaces. We will combine lidar-derived displacement data with surface ages to estimate slip rates for the CSMF.

Public communication on times of environmental crisis. The opening of San Rafael 's uranium complex

International Nuclear Information System (INIS)

Calvino, Carlos; Cisneros, Martin

2008-01-01

Full text: Argentina has had a lot of cultural changes in the last few years. An environmental movement has gathered and is trying to stop the opening of the Sierra Pintada uranium complex, near the city of San Rafael, in the south of Mendoza province. Since 2005, several 'groundless information' have been published in the local media about the dangers of this re-opening. These news exaggerate the properties of radon gas, claiming that it will reach San Rafael city (20 miles from the complex), rising radiological risk among the population, etc. This scene shows a 'non-real' picture of the regulatory activities that the Nuclear Regulatory Authority (ARN), a government agency that regulates nuclear facilities in Argentina, is really and systematically accomplishing. In this situation, the board of Directors of ARN decided to entrust a full analysis of the environmental issue in the area. The Office of Press and Communication implemented a local communication plan, using a Strategic and Systemic tool kit. The period to be analyzed is from second semester 2005 to February 2007. A little bit of history: the San Rafael Complex started in September 20 of 1979. It belongs to the National Commission of Atomic Energy (CNEA), a government agency. Until its temporary suspension in 1995 for international market reasons (uranium price was U$S 10 / pound), almost 2 million tons of uranium were processed. Besides its temporary suspension, the ARN has been constantly monitoring this particular former complex. In the year 2001, CNEA notices that the uranium price starts to rise and entrust National Technology University, Avellaneda Branch, to accomplish an Environmental Impact Report, according to the argentine law 25.585. Due especially to the rising of uranium price, (actually, the uranium price is approximately U$S 200) the national government determined to restart the extraction of the mineral again. By the year 2004, with the results of the Environmental Impact report, CNEA

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

Directory of Open Access Journals (Sweden)

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

Mercury-contaminated hydraulic mining debris in San Francisco Bay

Science.gov (United States)

Bouse, Robin M.; Fuller, Christopher C.; Luoma, Samuel N.; Hornberger, Michelle I.; Jaffe, Bruce E.; Smith, Richard E.

2010-01-01

The hydraulic gold-mining process used during the California Gold Rush and in many developing countries today contributes enormous amounts of sediment to rivers and streams. Commonly, accompanying this sediment are contaminants such as elemental mercury and cyanide used in the gold extraction process. We show that some of the mercurycontaminated sediment created by hydraulic gold mining in the Sierra Nevada, between 1852 and 1884, ended up over 250 kilometers (km) away in San Francisco Bay; an example of the far-reaching extent of contamination from such activities.

Dating considerations about Mahoma Guaycuru complex (San Jose province-Uruguay)

International Nuclear Information System (INIS)

Medina, E.

1988-01-01

The aim of this work has been achieved the training in the radimetric determination of age of rocks for those methods of K/Ar and Rb/Sr; the knowledge of this methodology and the different technical steps that it demands, will allow to achieve a better understanding of the geologic evolution have suffered the rocks of the Crystaline oldland in our country. The rocks selected for the work come from the San Jose province, of 4th Judicial section, well-known place as Sierra Mahoma and Guaycuru.

Assessing Hydrologic Impacts of Future Land Cover Change Scenarios in the South Platte River Basin (CO, WY, & NE) and the San Pedro River Basin (U.S./Mexico).

Science.gov (United States)

Barlow, J. E.; Burns, I. S.; Guertin, D. P.; Kepner, W. G.; Goodrich, D. C.

2016-12-01

Long-term land-use and land cover change and their associated impacts pose critical challenges to sustaining vital hydrological ecosystem services for future generations. In this study, a methodology to characterize hydrologic impacts from future urban growth through time that was developed and applied on the San Pedro River Basin was expanded and utilized on the South Platte River Basin as well. Future urban growth is represented by housing density maps generated in decadal intervals from 2010 to 2100, produced by the U.S. Environmental Protection Agency (EPA) Integrated Climate and Land-Use Scenarios (ICLUS) project. ICLUS developed future housing density maps by adapting the Intergovernmental Panel on Climate Change (IPCC) Special Report on Emissions Scenarios (SRES) social, economic, and demographic storylines to the conterminous United States. To characterize hydrologic impacts from future growth, the housing density maps were reclassified to National Land Cover Database (NLCD) 2006 land cover classes and used to parameterize the Soil and Water Assessment Tool (SWAT) using the Automated Geospatial Watershed Assessment (AGWA) tool. The objectives of this project were to 1) develop and implement a methodology for adapting the ICLUS data for use in AGWA as an approach to evaluate impacts of development on water-quantity and -quality, 2) present, evaluate, and compare results from scenarios for watersheds in two different geographic and climatic regions, 3) determine watershed specific implications of this type of future land cover change analysis.

Kirjanikud Pedro Krusten, Henrik Visnapuu ja teised / Edla Krusten ; intervjueerinud Martin Viirand

Index Scriptorium Estoniae

Krusten, Edla

2012-01-01

Pedro Krusteni lesk Edla Krusten räägib oma käekäigust sõja ajal, Saksamaal ja USA-s, oma abikaasast Pedro Krustenist ja vaimsest atmosfäärist, mis valitses välis-eestlaste seas Ameerika Ühendriikides. Artikkel põhineb Rahvusringhäälingu raadiosaatel "Maailmapilt" (2008)

Age of formation deposition Tunes, Sierra de la Ventana Foldbelt, Argentina

International Nuclear Information System (INIS)

Alessandretti, L.; Philipp, R.; Chemale, F.; Ramos, V.

2010-01-01

The Sierra de la Ventana, located in east-central Argentina, is the most important recharge area within the South American Plate, an extensive Paleozoic basin, which evolved from a passive margin basin to basin - ante country. The basin developed on the southwestern edge of the supercontinent Gondwana, where magmatic activity occurred in large areal and temporal scale during the Paleozoic, particularly during the Permian . Tufáceos horizons that occur in the Sierra de la Ventana and the Cape Foldbelt Basins and San Rafael, Paraná, Sauce Grande and Karoo can be correlated with this period of intense magmatic activity . Five igneous zircons in an interleaved tufácea layer with sandstones and mudstones of the Tunas Formation, through the U / Pb method were dated using LA - MC - ICP - MS . Yielded an age of 274.3 ± 4.8 Concord Ma for tuffs of the Tunas Formation . Inherited zircons with ages between 623 and 374 Ma, indicate provenance of Patagonian region. Analysis of x -ray diffraction allowed the identification of quartz, plagioclase, smectite and illite mineral constituents of the tufts . The presence of abundant quartz and plagioclase suggests a dacitic volcanism nature to volcanism of southwestern Gondwanan margin and smectite is interpreted as a product of alteration of volcanic material deposited in an aqueous environment

Creating Sister Cities: An Exchange Across Hemispheres

Science.gov (United States)

Adams, M. T.; Cabezon, S. A.; Hardy, E.; Harrison, R. J.

2008-06-01

Sponsored by Associated Universities, Inc. (AUI) and the National Radio Astronomy Observatory (NRAO), this project creates a cultural and educational exchange program between communities in South and North America, linking San Pedro de Atacama in Chile and Magdalena, New Mexico in the United States. Both communities have similar demographics, are in relatively undeveloped regions of high-elevation desert, and are located near major international radio astronomy research facilities. The Atacama Large Millimeter/submillimeter Array (ALMA) is just 40 km east of San Pedro; the Very Large Array (VLA) is just 40 km west of Magdalena. In February 2007, the Mayor of San Pedro and two teachers visited Magdalena for two weeks; in July 2007 three teachers from Magdalena will visit San Pedro. These visits enable the communities to lay the foundation for a permanent, unique partnership. The teachers are sharing expertise and teaching methodologies for physics and astronomy. In addition to creating science education opportunities, this project offers students linguistic and cultural connections. The town of San Pedro, Chile, hosts nearly 100,000 tourists per year, and English language skills are highly valued by local students. Through exchanges enabled by email and distance conferencing, San Pedro and Magdalena students will improve English and Spanish language skills while teaching each other about science and their respective cultures. This poster describes the AUI/NRAO Sister Cities program, including the challenges of cross-cultural communication and the rewards of interpersonal exchanges between continents and cultures.

Calpionellid distribution and microfacies across the Jurassic/ Cretaceous boundary in western Cuba (Sierra de los Órganos)

Science.gov (United States)

López-Martínez, Rafael; Barragán, Ricardo; Reháková, Daniela; Cobiella-Reguera, Jorge Luis

2013-06-01

A detailed bed-by-bed sampled stratigraphic section of the Guasasa Formation in the Rancho San Vicente area of the "Sierra de los Órganos", western Cuba, provides well-supported evidence about facies and calpionellid distribution across the Jurassic/Cretaceous boundary. These new data allowed the definition of an updated and sound calpionellid biozonation scheme for the section. In this scheme, the drowning event of a carbonate platform displayed by the facies of the San Vicente Member, the lowermost unit of the section, is dated as Late Tithonian, Boneti Subzone. The Jurassic/Cretaceous boundary was recognized within the facies of the overlying El Americano Member on the basis of the acme of Calpionella alpina Lorenz. The boundary is placed nearly six meters above the contact between the San Vicente and the El Americano Members, in a facies linked to a sea-level drop. The recorded calpionellid bioevents should allow correlations of the Cuban biozonation scheme herein proposed, with other previously published schemes from distant areas of the Tethyan Domain.

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 ...

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...

Pedro Meyer vastutab oma piltide eest / Laura Kuusk

Index Scriptorium Estoniae

Kuusk, Laura, 1982-

2007-01-01

Mehhiko fotograafi Pedro Meyeri tutvustus. P. Meyeri ettekande tekst "Kui dokumentaalne teile meeldis, siis digitaalset hakkate armastama", esitatud Soomes Jyväskyläs 2006. a. oktoobris toimunud fotograafiakonverentsil

Factores de riesgo de violencia escolar (bullying) severa en colegios privados de tres zonas de la sierra del Perú

OpenAIRE

Isabel Amemiya; Miguel Oliveros; Armando Barrientos

2009-01-01

Objetivo: Identificar los factores de riesgo de violencia escolar (bullying) severa en alumnos de colegios privados de tres zonas de la sierra del Perú. Diseño: Estudio tipo encuesta. Institución: Facultad de Medicina, Universidad Nacional Mayor de San Marcos, Lima, Perú. Participantes: Alumnos entre quinto de primaria y quinto de secundaria de colegios privados. Intervenciones: Una encuesta validada en estudios previos, para identificar violencia escolar (bullying), fue aplicada a 736 alumno...

Improving mapping for Ebola response through mobilising a local community with self-owned smartphones: Tonkolili District, Sierra Leone, January 2015

OpenAIRE

Nic Lochlainn, Laura M.; Gayton, Ivan; Theocharopoulos, Georgios; Edwards, Robin; Danis, Kostas; Kremer, Ronald; Kleijer, Karline; Tejan, Sumaila M.; Sankoh, Mohamed; Jimissa, Augustin; Greig, Jane; Caleo, Grazia

2018-01-01

Background During the 2014–16 Ebola virus disease (EVD) outbreak, the Magburaka Ebola Management Centre (EMC) operated by Médecins Sans Frontières (MSF) in Tonkolili District, Sierra Leone, identified that available district maps lacked up-to-date village information to facilitate timely implementation of EVD control strategies. In January 2015, we undertook a survey in chiefdoms within the MSF EMC catchment area to collect mapping and village data. We explore the feasibility and cost to mobi...

ESPOSAS Y MADRES: LA SEXUALIDAD FEMENINA EN PEDRO PÁRAMO

Directory of Open Access Journals (Sweden)

DULCE ISABEL AGUIRRE BARRERA

2008-01-01

Full Text Available El presente artículo analiza las manifestaciones de la sexualidad de seis personajes femeninos en Pedro Páramo, de Juan Rulfo (Dolores Preciado, la madre de Pedro Páramo, Eduviges Dyada, Dorotea, Justina Díaz y Damiana Cisneros, en relación con los dos roles sexuados (esposa y madre asociados con el Deber-Ser femenino arquetípico de la ideología androcéntrica, con el propósito de estudiar las diferentes "recreaciones" y/o "transgresiones" de dichos roles en cada uno de los casos.

Isotopic Evidence of Nitrate Sources and its Relationship to Algae in the San Joaquin River, California

Science.gov (United States)

Silva, S. R.; Kendall, C.; Young, M. B.; Stringfellow, W. T.; Borglin, S. E.; Kratzer, C. R.; Dahlgren, R. A.; Schmidt, C.; Rollog, M. E.

2007-12-01

Many competing demands have been placed on the San Joaquin River including deep water shipping, use as agricultural and drinking water, transport of agricultural and urban runoff, and recreation. These long-established demands limit the management options and increase the importance of understanding the river dynamics. The relationships among sources of water, nitrate, and algae in the San Joaquin River must be understood before management decisions can be made to optimize aquatic health. Isotopic analyses of water samples collected along the San Joaquin River in 2005-2007 have proven useful in assessing these relationships: sources of nitrate, the productivity of the San Joaquin River, and the relationship between nitrate and algae in the river. The San Joaquin River receives water locally from wetlands and agricultural return flow, and from three relatively large tributaries whose headwaters are in the Sierra Nevada. The lowest nitrate concentrations occur during periods of high flow when the proportion of water from the Sierra Nevada is relatively large, reflecting the effect of dilution from the big tributaries and indicating that a large fraction of the nitrate is of local origin. Nitrogen isotopes of nitrate in the San Joaquin River are relatively high (averaging about 12 per mil), suggesting a significant source from animal waste or sewage and/or the effects of denitrification. The d15N of nitrate varies inversely with concentration, indicating that these high isotopic values are also a local product. The d15N values of nitrate from most of the local tributaries is lower than that in the San Joaquin suggesting that nitrate from these tributaries does not account for a significant fraction of nitrate in the river. The source of the non-tributary nitrate must be either small unmeasured surface inputs or groundwater. To investigate whether groundwater might be a significant source of nitrate to the San Joaquin River, groundwater samples are being collected

[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.

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.

La Participación de la Mujer en las Empresa Forestales Comunitarias de la Sierra Norte de Oaxaca, México

OpenAIRE

Bellido González, Laura

2009-01-01

En la Sierra Norte de Oaxaca, México, las comunidades tienen como principal actividad productiva las empresas forestales. Cierto tipo de empresas como las de ecoturismo, o empresas envasadoras de agua, entre otras, están posibilitando el desarrollo autónomo de las comunidades. Las comunidades implicadas en este estudio son Benito Juárez, Capulálpam, Cuajimoloyas, La Nevería, Santa Catarina Ixtepeji, Santa Catarina Lachatao, Santa Martha Latuvi y San Miguel Amatlán. Todas ell...

Pedro Teixeira y su viaje por Mesopotamia

Directory of Open Access Journals (Sweden)

Fuente del Pilar, José Javier

2005-04-01

Full Text Available Pedro Teixeira es un integrante notable de la ilustre nómina de los viajeros portugueses que, a finales del s, XVI y principios del XVII, ensancharon para Occidente las fronteras del mundo. Su conocimiento en España se debe a la publicación en 1994 de su obra «Relaciones del Origen, Descendencia y Sucesión de los Reyes de Persia, y de Harmuz, y de un viaje hecho por el autor dende la India hasta Italia por tierra», en edición realizada por el profesor Eduardo Barajas Sala, lamentablemente fallecido en 1997. En este artículo se ofrece una reseña biográfica de Pedro Teixeira, y un análisis del viaje narrado por el autor en la última parte de sus «Relaciones »: el que desde Ormuz le conducirá, a través de Mesopotamia, hasta la costa del Mediterráneo.…

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.

Herpetofauna inside and outside from a natural protected area: the case of Reserva Estatal de la Biósfera Sierra San Juan, Nayarit, Mexico

Directory of Open Access Journals (Sweden)

Victor H. Luja

2017-08-01

Full Text Available Natural Protected Areas (NPAs includes important species richness, and it is assumed that these are the best areas for biodiversity conservation. There are certain doubts, however, about the effectiveness of the NPAs in developing countries, where economic resources for conservation are scarce and NPAs are not monitored and managed efficiently. In the present study we assessed the species richness, diversity, abundance, and functional guilds of amphibians and reptiles inside and outside of the NPA Reserva Estatal de la Biósfera Sierra San Juan (REBSSJ, Nayarit, Mexico. Our results showed that species numbers of amphibian and reptiles were higher outside than inside the reserve, as well the individual number distributed among species, except for lizard species. Analyses of functional guilds showed that both richness and functional dispersion were greater in amphibians and reptiles outside the reserve. Likewise, outside the reserve we recorded a higher species number with some category of risk at the national level (NOM-059, international level (IUCN, and also by using the Environmental Vulnerability Score (EVS algorithm. The results suggest that areas outside of the reserve are crucial to the maintenance of regional biodiversity, due to high complementarity with species composition inside of the reserves. These data can be used to implement conservation measures that include a new demarcation of the reserve and the consideration of surrounding areas to include a great number of species.

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.

Characterization of obsidian devices come from San Miguel Ixtapan, Estado de Mexico by Neutron Activation Analysis; Caracterizacion de artefactos de obsidiana provenientes de San Miguel Ixtapan, Estado de Mexico con Analisis por Activacion Neutronica

Energy Technology Data Exchange (ETDEWEB)

Almazan T, M.G.; Jimenez R, M.; Monroy G, F.; Tenorio C, D. [Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, 11801 Mexico D.F. (Mexico)

2002-07-01

The Neutron Activation Analysis (NAA) is an efficient multielemental technique for determination of elements in low concentration (ppm), what has been result useful in the study of origin of archaeological material. In this work that technique was used for characterizing obsidian devices coming from the San Miguel Ixtapan site, Estado de Mexico and it was found that these come from three important beds which are: Sierra de Pachuca, Hidalgo, Zinapecuaro and Zinaparo-Varal in the Michoacan state. (Author)

Geological and radiometric study of the anomaly ''San Martin'' municipality of Sierra Mojada, Coahuila

International Nuclear Information System (INIS)

Ibarra Mora, P.

1975-01-01

When it first became known that there were uranium ores at the mine known as San Martin (72 hectares, Mining Agency, Sabinas, Mexico), exploration work was started with the sinking of two wells at the sites of maximum radiometric intensity. A short while afterwards, however, this work was suspended. In 1974, the work required for evaluation of the locality was begun. Geological and radiometric studies carried out both at the surface and underground pointed to the conclusion that the San Martin anomaly, down to the depth explored (40 metres), is a stockwork-type deposit or a tabular seam of the fissure type. It was concluded that in view of the grades obtained (0.0227%U 3 O 6 ) down to 40 metres, the deposit cannot be considered of econimic importance at the present time. (author)

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.

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.

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...

San Pedro Hacienda Hotel

Directory of Open Access Journals (Sweden)

Neutra, Richard J.

1960-05-01

Full Text Available Una de las arterias principales de Los Angeles, la carretera de acceso desde Western Avenue, que relaciona la ciudad con su puerto, permite llegar fácilmente, a través de una pequeña desviación, a la entrada principal del hotel. El sencillo grupo de edificios que lo constituyen, se amolda a la pendiente del terreno, acusando el juego de volúmenes y de sol y sombra para aumentar el interés visual. Al fondo, la severidad del paisaje montañoso contrasta con la tranquilidad del mar, que en este caso, pese a ser el Océano Pacífico el gran mar occidental americano, aparece al E., por estar el edificio situado en la orilla oriental de la península de Falos Verdes.

Morphotectonic and neotectonic control on river pattern in the Sierra de la Cantera piedmont, Central Precordillera, province of San Juan, Argentina

Science.gov (United States)

Perucca, Laura P.; Rothis, Martín; Vargas, Horacio N.

2014-01-01

The drainage pattern on the western piedmont of the Sierra de La Cantera is divergent, typical of alluvial fans and showing anomalies that are directly related to the trace of La Cantera thrust. In previous studies, two types of anomalies were identified: upstream of the fault scarp, rivers have a broom-shaped pattern, while downstream - in the hanging block - streams become denser, more sinuous and incised. In this contribution, these morphotectonic aspects were analyzed in detail, making direct and indirect analysis to quantify the relationship between these anomalies and the faults affecting alluvial fans. In addition, the influence of neotectonic activity on smaller water course patterns in the alluvial fan areas was investigated in order to find indicators of on-going vertical movements, since the spatial arrangements of these piedmont channels are determined by slope and structure, where active faults cause diversions or anomalies. Topographic profiles in two selected channels cutting across the trace of the fault were performed using a differential GPS in order to establish the relationship between the sinuosity and slope of these rivers. The results obtained allow us to state that the most sinuous channels have lower slopes and are located in the hanging wall of the fault. Morphometric analysis of scarps stated that active tectonics have played an essential role in controlling the drainage pattern in the piedmont, leading the rivers to adjust to these slope variations. Finally, based on the geomorphologic, stratigraphic, structural and seismological characteristics and parameters analyzed, La Cantera Thrust is considered a seismogenic source of significance to the nearby towns (> 700,000 inhabitants) and also to the large-scale dams built downstream along the San Juan River.

Aproximación a un fotógrafo y pintor desconocido: Fr. Pedro de Madrid, Pedro Satué, Foto Antsa

Directory of Open Access Journals (Sweden)

José Javier Azanza López

2015-01-01

Full Text Available Este trabajo pretende ser una aproximación a un fotógrafo y pintor prácticamente desconocido, y trazar una secuencia biográ- ca hasta ahora inédita: Fr. Pedro de Madrid-Pedro Satué-Foto Antsa. Este polifacético artista (Madrid, 1880-1936 se inició en las técnicas pictóricas y fotográ cas en el colegio capuchino de Lekaroz (Navarra, mostrándose como un hábil copista de Murillo y resultando triunfador en el Certamen Fotográ co-Social celebrado en Pamplona en 1912 con su colección de caseríos vascos del Baztán. Tras secularizarse y recuperar su nombre civil, desarrolló su labor profesional como fotógrafo al frente de un estudio abierto en 1924 en Madrid, especializándose en el retrato artístico y colaborando en las revistas ilustradas más importantes de la época.

Defectos refractivos en estudiantes de la Escuela “Pedro D. Murillo” Refractive defects found in “Pedro D. Murillo” school students

Directory of Open Access Journals (Sweden)

Yaimir Estévez Miranda

2011-12-01

Full Text Available Objetivo: Caracterizar los defectos refractivos en niños de edad escolar en la escuela “Pedro Murillo” en el centro “Ciudad Escolar Libertad”. Métodos: Se realizó un estudio descriptivo, transversal con la finalidad de conocer los trastornos refractivos en niños de la primaria “Pedro Murillo” en el municipio Marianao, Ciudad de la Habana, en el periodo comprendido de septiembre 2010 a febrero de 2011. El universo estuvo formado por 422 estudiantes. Fueron 844 ojos a los que se le realizó un examen oftalmológico completo. Se distribuyeron según el defecto refractivo y su grado de severidad, edad, género y la frecuencia de la ambliopía. Resultados: El astigmatismo se presentó como la ametropía más frecuente para un 63,4 % y predominó el astigmatismo miópico compuesto. De las ametropías estudiadas prevaleció su forma leve (83 %. Se encontró una frecuencia de ambliopía de 3,7 % en los escolares. Conclusión: El comportamiento de los defectos refractivos observado, estuvo dentro de las cifras esperadas en relación a los reportes internacionales referidos al tema.Objectives: To characterize the refractive defects in children of school age in “Pedro Murillo” school in educational center Ciudad Libertad. Methods: A descriptive study and cross-sectional study was carried out to knowing the refractive disorders in elementary school children in “Pedro Murillo” school Marianao municipality, La Havana, in the from September 2010 to February, 2011. The universe was formed by 422 students. A complete ophthalmologic exam was performed on 844 eyes. They were distributed according to the refractive defect and their degree of severity, age, gender and the frequency of the amblyopia. Results: The astigmatism was the most frequent ametropia for 63.4 %, the compound myopic astigmatism prevailed. Of the studied ametropias their mild form prevailed for 83 %. The frequency of amblyopia was 3.7 % in students. Conclusions: The

Characterization of obsidian devices come from San Miguel Ixtapan, Estado de Mexico by Neutron Activation Analysis

International Nuclear Information System (INIS)

Almazan T, M.G.; Jimenez R, M.; Monroy G, F.; Tenorio C, D.

2002-01-01

The Neutron Activation Analysis (NAA) is an efficient multielemental technique for determination of elements in low concentration (ppm), what has been result useful in the study of origin of archaeological material. In this work that technique was used for characterizing obsidian devices coming from the San Miguel Ixtapan site, Estado de Mexico and it was found that these come from three important beds which are: Sierra de Pachuca, Hidalgo, Zinapecuaro and Zinaparo-Varal in the Michoacan state. (Author)

Os primeiros filmes de Joaquim Pedro de Andrade: história e linguagem

Directory of Open Access Journals (Sweden)

Tatiana Pontes de Oliveira

2014-12-01

Full Text Available The early films by Joaquim Pedro de Andrade: history and language – Joaquim Pedro de Andrade: primeiros tempos (early days four films by this “Cinema Novo” director are analyzed. From a historical research, the analysis focus is on this filmmaker’s training period and his initial films. His reflections on relations between fiction cinema and documentary, besides the specificities of the cinematographic language are highlighted.

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.

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...

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.

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

OpenAIRE

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

2006-01-01

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

VizieR Online Data Catalog: From optical to infrared photometry of SN 2013dy (Pan+, 2015)

Science.gov (United States)

Pan, Y.-C.; Foley, R. J.; Kromer, M.; Fox, O. D.; Zheng, W.; Challis, P.; Clubb, K. I.; Filippenko, A. V.; Folatelli, G.; Graham, M. L.; Hillebrandt, W.; Kirshner, R. P.; Lee, W. H.; Pakmor, R.; Patat, F.; Phillips, M. M.; Pignata, G.; Ropke, F.; Seitenzahl, I.; Silverman, J. M.; Simon, J. D.; Sternberg, A.; Stritzinger, M. D.; Taubenberger, S.; Vinko, J.; Wheeler, J. C.

2017-11-01

We obtained broad-band BVRI photometry of SN 2013dy with the 0.76m Katzman Automatic Imaging Telescope (KAIT; Filippenko et al. 2001ASPC..246..121F). The multiband images were observed with the KAIT4 filter set from -16d to +337d relative to B-band maximum (MJD=56501.105). We also obtained riZYJH photometry of SN 2013dy with the multichannel Reionization And Transients InfraRed camera (RATIR; Butler et al. 2012SPIE.8446E..10B) mounted on the 1.5m Johnson telescope at the Mexican Observatorio Astronomico Nacional on Sierra San Pedro Martir in Baja California, Mexico (Watson et al. 2012SPIE.8444E..5LW). Typical observations include a series of 80s exposures in the ri bands and 60s exposures in the ZYJH bands, with dithering between exposures. (2 data files).

EVALUATION OF HEAVY METALS POLLUTION OF SURFACE WATER FROM ARROYO SAN IGNACIO IN THE SIERRA TARAHUMARA, MEXICO

OpenAIRE

Celia Chávez-Mendoza; Celia Holguín-Licón; Rey M. Quintana-Martínez; Francisco J Camarillo- Acosta; Alexando Guevara-Aguilar; Ricardo A Soto-Cruz

2015-01-01

The aim of this work was to evaluate the metals content in surface water of Arroyo San Ignacio (San Ignacio stream) and its main tributary, which are located in a priority ecological region of Mexico. For this study, these streams were divided in three sampling zones establishing thirty two sampling sites. Al, As, B, Ca, Cd, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, Se, Si and Zn were measured. Some physicochemical parameters were also evaluated. Results indicated significant difference (P≤0.05) in ...

Heavy mineral analysis for assessing the provenance of sandy sediment in the San Francisco Bay Coastal System

Science.gov (United States)

Wong, Florence L.; Woodrow, Donald L.; McGann, Mary

2013-01-01

Heavy or high-specific gravity minerals make up a small but diagnostic component of sediment that is well suited for determining the provenance and distribution of sediment transported through estuarine and coastal systems worldwide. By this means, we see that surficial sand-sized sediment in the San Francisco Bay Coastal System comes primarily from the Sierra Nevada and associated terranes by way of the Sacramento and San Joaquin Rivers and is transported with little dilution through the San Francisco Bay and out the Golden Gate. Heavy minerals document a slight change from the strictly Sierran-Sacramento mineralogy at the confluence of the two rivers to a composition that includes minor amounts of chert and other Franciscan Complex components west of Carquinez Strait. Between Carquinez Strait and the San Francisco Bar, Sierran sediment is intermingled with Franciscan-modified Sierran sediment. The latter continues out the Gate and turns southward towards beaches of the San Francisco Peninsula. The Sierran sediment also fans out from the San Francisco Bar to merge with a Sierran province on the shelf in the Gulf of the Farallones. Beach-sand sized sediment from the Russian River is transported southward to Point Reyes where it spreads out to define a Franciscan sediment province on the shelf, but does not continue southward to contribute to the sediment in the Golden Gate area.

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

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.

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

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)

Origins of the Salado, Seven Rivers, and San Andres salt margins in Texas and New Mexico: Revision 1: Topical report

International Nuclear Information System (INIS)

Boyd, S.D.; Murphy, P.J.

1987-02-01

The present boundaries of the San Andres, Seven Rivers, and Salado salts generally lie along the periphery of the Palo Duro and Tucumcari Basins. Various geologic mechanisms occurring singularly or in combination determined the positions of the salt margins. These mechanisms include nondeposition of salt and syndepositional and postdepositional dissolution. In New Mexico, San Andres units pinch out against the Pedernal and Sierra Grande Uplifts, indicating that nondeposition established the original salt margins there. Syndepositional dissolution of exposed Upper San Andres salts occurred in response to Guadalupian upwarp of the basin margins. Triassic erosion differentially removed Permian salt-bearing formations along the uplifts. Late Tertiary dissolution is indicated by fill of north-south trending collapse valleys. In Texas, Guadalupian upwarp along the Amarillo Uplift caused pinchout of Units 2 and 3 in the Lower San Andres and influenced the deposition of subsequent salt-bearing strata. The discontinuity of Upper San Andres evaporites across the Amarillo Uplift suggests syndepositional dissolution. Along the eastern and northeastern basin margin, dissolution may have accompanied Triassic erosion of locally uplifted Upper Permian strata. Tertiary dissolution is recognized beneath anomalously thick Ogallala Formation sections that overlie collasped Permian strata. 49 refs., 31 figs., 2 tabs

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

Determination of the provenance of obsidian samples collected in the archaeological site of San Miguel Ixtapan, Mexico State, Mexico by means of neutron activation analysis

International Nuclear Information System (INIS)

Almazan-Torres, M.G.; Aguirre-Martinez, P.I.

2004-01-01

Obsidian samples from San Miguel Ixtapan Mexico State, Mexico were analyzed by means of neutron activation. Statistical treatments such as bivariate, cluster and principal-components analyses were applied to the data set. Obsidians were identified as coming from three important sources: Sierra of Pachuca in the state of Hidalgo, Zinap uaro and Zin aro-Varal in the state of Michoacan. (author)

Pedro Ventura de Puga, último señor de la Casa de Fontefiz

Directory of Open Access Journals (Sweden)

Leirós de la Peña, Paz

2007-12-01

Full Text Available This paper is based on documentation from Casa de Fontefiz kept in the AHPOR. The documents cover the period from the sixteenth to nineteenth century and provide information about the patrimony of the house, its social position and the political activities of Pedro Ventura de Puga during the firts half of the nineteenth century. The first part is focused on the origin and evolution of patrimony, way of living, nobility abuses (including social and sexual aspects, and the difficulties to keep the social status. In the second part, Pedro Ventura plays the main role: his participation in the War of Independence and the building of the liberal state. He is a relevant character to undestand the adaptation of nobility to an age of political changes and social ad economical survivals. The defense of the constitution and his participation in the liberal regime is compatible with the maintenance of a economy based on the collection of taxes and nobility titles. Pedro Ventura is politically registered as a moderate liberalist.

Este trabajo está basado en la documentación de la Casa de Fontefiz, conservada en al AHPOR. Los documentos abarcan desde el siglo XVI al XIX y nos aportan información sobre el patrimonio de la Casa, su posición social y las actividades políticas de Pedro Ventura de Puga en la primera mitad del siglo XIX. La primera parte se centra en el origen y evolución del patrimonio, modo de vida, abusos de la hidalguía en el plano social y sexual y las dificultades para mantener el stuatus social. La segunda parte tiene como protagonista a Pedro Ventura de Puga, su participación en la Guerra de la Independencia y en la construcción del estado liberal. Es una figura clave para entender la adaptación de la hidalguía a una época de cambios políticos y de pervivencias sociales y económicas. La defensa de la Constitución y la participación en el régimen liberal es compatible con el mantenimiento de una econocmía basada en

Permo-triassic volcanism in the San Rafael Block (Mendoza province) and its uraniferous potential

International Nuclear Information System (INIS)

Kleiman, L.E.

1993-01-01

This paper describes the Permo-triassic volcanism in the San Rafael Block, Mendoza, Argentina, which forms part of the Choiyoi province and it represents by large volumes of intermediate to silicic ignimbrites with minor sub volcanic bodies of rhyolites, andesites and basandesites. Three different suites can be distinguished: the first one (Lower Section) of Early Permian age, is composed of dacites and rhyolites (SiO 2 up to 71 %) with minor andesites, the second one (Upper Section) of Late Permian-Early Triassic age is made up of rhyolites (SiO 2 up to 77 %) with some basandesites and andesites, and the third one, of Triassic age is composed of rhyolites (SiO 2 > 75 %) and basandecites. These suites are easily distinguished by means of trace element data and are believed to represent the transition between a subduction-related magmatic arc and an extensional tectonic regime. This tectonic setting is similar to the prevalent during the Cenozoic in the Sierra Occidental of Mexico and is favourable for the development of long-lived hydrothermal systems which lead to economic U concentrations (i.e. Sierra de Pena Blanca). In the San Rafael Block, the Dr. Baulies-Los Reyunos U deposit, which is hosted in volcanic sediments, is associated to the first suite (Lower Section). Although minor U concentrations are known, up to date, to be related to the second and third suites, these rocks are fertile and seen to be potential source for the formation of uranium deposits within a volcanic caldera environment. (Author)

A arquitectura das Termas romanas de S. Pedro do Sul

Directory of Open Access Journals (Sweden)

Helena Frade

1992-01-01

Full Text Available Comenzamos el trabajo con una introducción general en la que se pone de manifiesto la escasez de estudios sobre el termalismo antiguo en Portugal y la mala conservación de la mayoría de los restos conocidos. Pasamos, a continuación, a tratar del balneario de Sao Pedro do Sul, localizado en la feligresía de Várzea, ayuntamiento de Sao Pedro do Sul, provincia de Viseu, que es uno de los mejor conservados. Se realizaron algunas excavaciones en los años 50. No obstante, las investigaciones sistemáticas comenzaron en 1985. El edificio, de fundación romana, mantiene hasta hoy gran parte de la estructura primitiva, en la que pueden determinarse dos fases constructivas, de las que se dan sus características.We start this report with a general introduction in which the scarcity of studies about ancient thermalism in Portugal, and the bad preservation of the majority of the known ruins, is shown. We continué with the spa of Sao Pedro do Sul, province of Viseu, one of the best preserved. Several diggins were made in the 50's. How^ever, the systematic research started in 1985. The building, of román foundation, maintains today a big portion of its primitive structure, in wich two construction stages can be determined, whose characteristics are discribed here.

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

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. 

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...

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.

Astronaut Pedro Duque Watches A Water Bubble

Science.gov (United States)

2003-01-01

Aboard the International Space Station (ISS), European Space Agency astronaut Pedro Duque of Spain watches a water bubble float between a camera and himself. The bubble shows his reflection (reversed). Duque was launched aboard a Russian Soyuz TMA-3 spacecraft from the Baikonur Cosmodrome, Kazakhstan on October 18th, along with expedition-8 crew members Michael C. Foale, Mission Commander and NASA ISS Science Officer, and Cosmonaut Alexander Y. Kaleri, Soyuz Commander and flight engineer.

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).

Chilean Teachers Begin Exchange Program Visit in Magdalena

Science.gov (United States)

2007-01-01

Two teachers from the town of San Pedro de Atacama, in the northern desert of the South American nation of Chile, arrive in Magdalena, New Mexico, Sunday, January 28, for a two-week visit that is part of a Sister Cities program sponsored by Associated Universities, Inc. (AUI), the nonprofit research corporation that operates the National Radio Astronomy Observatory (NRAO). They will be accompanied by their town's mayor. Myriam Nancy Rivera Mercado, Head of the high school in San Pedro, Gabriela Fernanda Rodriguez Moraleda, a tourism teacher there, and San Pedro Mayor Sandra Berna Martinez will begin a visit that includes classroom observations in the Magdalena schools, a reception hosted by the Magdalena Village Council, and a Mayor's Breakfast with Magdalena Mayor Jim Wolfe. They also will meet local residents, tour the Bosque del Apache National Wildlife Refuge with a second-grade class, visit an area ranch, tour the Very Large Array (VLA) radio telescope, and see Socorro's Community Arts Party. "These teachers will learn much about New Mexico, the United States, and our educational system, and will take this new knowledge back to their students and their community," said NRAO Education Officer Robyn Harrison. The visit is part of a Sister Cities program initiated and funded by AUI, which operates the NRAO for the U.S. National Science Foundation. Radio astronomy is a common link between San Pedro de Atacama and Magdalena. San Pedro is near the site of the Atacama Large Millimeter/submillimeter Array (ALMA), an international telescope project now under construction with funding by major partners in North America, Europe, and Japan. Magdalena is near the site of NRAO's VLA radio telescope. In Magdalena, the Village Council and Mayor Wolfe formalized their participation in the Sister Cities program last September, and San Pedro ratified the program in December. In San Pedro, the ceremony ratifying the agreement was attended by U.S. Ambassador to Chile Craig K

From Golden Age Mexican Cinema to Transnational Border Feminism: The Community of Spectators in "Loving Pedro Infante"

Science.gov (United States)

Heredia, Juanita

2008-01-01

The novel "Loving Pedro Infante" by Chicana writer Denise Chavez provides an insightful transcultural feminist critique of Golden Age Mexican cinema culture through a careful examination of gender roles. In the novel, the reception of Pedro Infante's films by spectators bridges generations and national spaces and leads to the formation…

Em torno da luz cristalina: clara voz de Pedro Salinas

Directory of Open Access Journals (Sweden)

Cristiano Moreira

2015-06-01

Full Text Available http://dx.doi.org/10.5007/2176-8552.2016n20p147 O texto que segue pretende ler a poesia de Pedro Salinas e Jorge Guillén diante de uma perspectiva que faz da voz uma iluminação e uma resistência diante do tempo histórico e da predominância de uma leitura simples das imagens. Assim, alguns poemas escolhidos permitem uma leitura contemporânea a respeito da voz, seguindo o conceito de Stimmung recuperado por Giorgio Agamben e as lições de poesia de Paul Valéry, e formam aspectos imprescindíveis para ler a poesia destes poetas. Ao manter em sua produção uma conversação com seus predecessores, Pedro Salinas joga com o logos e faz da phoné matéria prima para sua obra.

The metalexicographical contribution of pedro a. fuertes-olivera and ...

African Journals Online (AJOL)

This article attempts to give a critical review of Pedro A. Fuertes-Olivera and Ascen-sión Arribas-Baño's Pedagogical Specialised Lexicography. It evaluates the book in view of the avail-able metalexicographical literature as well as current trends in practical LSP lexicography in the wake of rapid technological and ...

Desde "San Juan, San Pedro y Santa Lucia" hacia la construcción social y política de Inti Raymi en Cotacachi Imbabura

OpenAIRE

Cevallos Calapi, Raúl Clemente

2006-01-01

La presente investigación, tiene como escenario dos comunidades kichwas, ubicadas en el Cantón Cotacachi de la Provincia de Imbabura: San Vicente de El Topo Grande y La Calera que protagonizan tradicionalmente la toma de la plaza. La fiesta de Inti Raymi encuentra en estas dos comunidades la representación de las mitades Janan y Urin que cada año en tomo al parque central de Cotacachi efectúan peleas rituales; el nivel de violencia que alcanza la celebración del ritual provoca derramamiento d...

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...

Thermal history of rocks in southern San Joaquin Valley, California: evidence from fission-track analysis

Science.gov (United States)

Naeser, N.D.; Naeser, C.W.; McCulloh, T.H.

1990-01-01

Fission-track analysis has been used to study the thermal and depositional history of the subsurface Tertiary sedimentary rocks on both sides of the active White Wolf reverse fault in the southern San Joaquin Valley. The distinctly different thermal histories of the rocks in the two structural blocks are clearly reflected in the apatite fission-track data, which suggest that rocks in the rapidly subsiding basin northwest of the fault have been near their present temperature for only about 1 m.y. compared with about 10 m.y. for rocks southeast of the fault. These estimates of heating time agree with previous estimates for these rocks. Zircon fission-track data indicate that the Tertiary sediments were derived from parent rocks of more than one age. However, from at least the Eocene to late Miocene or Pliocene, the major sediment source was rocks related to the youngest Sierra Nevada Mesozoic intrusive complexes, which are presently exposed east and south of the southern San Joaquin Valley. -from Authors

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...

Los púlpitos de San Miguel en Jerez de la Frontera. Reconstrucción y análisis dentro del programa apocalíptico del templo

Directory of Open Access Journals (Sweden)

Antonio Aguayo Cobo

2014-01-01

Full Text Available En el Museo Arqueológico Municipal de Jerez se conservan los restos de los dos púlpitos que, construidos en el siglo XVI por el maestro Pedro Fernández de la Zarza para el templo de San Miguel, fueron retirados en el siglo XVIII. Se hace un análisis iconográ co, diferenciando los restos pertenecientes a cada uno de los púlpitos, e intentando una posible reconstrucción de ambas piezas por medio de hipótesis de las imágenes perdidas. Una vez reconstruidos, se contextualizan los púl- pitos dentro del programa icónico del templo, cuyo hilo conductor es el texto apocalíptico, en el cual San Miguel desempeña un papel protagonista.

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...

Ozone, nitric acid, and ammonia air pollution is unhealthy for people and ecosystems in southern Sierra Nevada, California

Energy Technology Data Exchange (ETDEWEB)

Cisneros, Ricardo, E-mail: rcisneros@fs.fed.u [USDA Forest Service, Pacific Southwest Region, 1600 Tollhouse Road, Clovis, CA 93611 (United States); Bytnerowicz, Andrzej, E-mail: abytnerowicz@fs.fed.u [USDA Forest Service, Pacific Southwest Research Station, 4955 Canyon Crest Dr., Riverside, CA 92507 (United States); Schweizer, Donald, E-mail: dschweizer@fs.fed.u [USDA Forest Service, Pacific Southwest Region, 1600 Tollhouse Road, Clovis, CA 93611 (United States); Zhong, Sharon, E-mail: zhongs@msu.ed [Department of Geography, Michigan State University, 116 Geography Building East, Lansing, MI 48824-1117 (United States); Traina, Samuel, E-mail: straina@ucmerced.ed [Environmental Systems Graduate Group, University of California Merced, 5200 North Lake Road, Merced, CA 95343 (United States); Bennett, Deborah H., E-mail: dhbennett@ucdavis.ed [Department of Public Health Sciences, University of California Davis, One Shields Avenue, TB 169 Davis, CA 95616 (United States)

2010-10-15

Two-week average concentrations of ozone (O{sub 3}), nitric acid vapor (HNO{sub 3}) and ammonia (NH{sub 3}) were measured with passive samplers during the 2002 summer season across the central Sierra Nevada Mountains, California, along the San Joaquin River drainage. Elevated concentrations of the pollutants were determined with seasonal means for individual sites ranging between 62 and 88 ppb for O{sub 3}, 1.0-3.8 {mu}g m{sup -3} for HNO{sub 3}, and 2.6-5.2 {mu}g m{sup -3} for NH{sub 3}. Calculated O{sub 3} exposure indices were very high, reaching SUM00-191 ppm h, SUM60-151 ppm h, and W126-124 ppm h. Calculated nitrogen (N) dry deposition ranged from 1.4 to 15 kg N ha{sup -1} for maximum values, and 0.4-8 kg N ha{sup -1} for minimum values; potentially exceeding Critical Loads (CL) for nutritional N. The U.S., California, and European 8 h O{sub 3} human health standards were exceeded during 104, 108, and 114 days respectively, indicating high risk to humans from ambient O{sub 3}. - Ozone concentrations remained unchanged while those of nitric acid vapor and ammonia decreased along the river drainage crossing the Sierra Nevada Mountains.

Ozone, nitric acid, and ammonia air pollution is unhealthy for people and ecosystems in southern Sierra Nevada, California

International Nuclear Information System (INIS)

Cisneros, Ricardo; Bytnerowicz, Andrzej; Schweizer, Donald; Zhong, Sharon; Traina, Samuel; Bennett, Deborah H.

2010-01-01

Two-week average concentrations of ozone (O 3 ), nitric acid vapor (HNO 3 ) and ammonia (NH 3 ) were measured with passive samplers during the 2002 summer season across the central Sierra Nevada Mountains, California, along the San Joaquin River drainage. Elevated concentrations of the pollutants were determined with seasonal means for individual sites ranging between 62 and 88 ppb for O 3 , 1.0-3.8 μg m -3 for HNO 3 , and 2.6-5.2 μg m -3 for NH 3 . Calculated O 3 exposure indices were very high, reaching SUM00-191 ppm h, SUM60-151 ppm h, and W126-124 ppm h. Calculated nitrogen (N) dry deposition ranged from 1.4 to 15 kg N ha -1 for maximum values, and 0.4-8 kg N ha -1 for minimum values; potentially exceeding Critical Loads (CL) for nutritional N. The U.S., California, and European 8 h O 3 human health standards were exceeded during 104, 108, and 114 days respectively, indicating high risk to humans from ambient O 3 . - Ozone concentrations remained unchanged while those of nitric acid vapor and ammonia decreased along the river drainage crossing the Sierra Nevada Mountains.

Pedro Miguel Ruiz Carranza. Febrero 3, 1932 - Septiembre 12, 1998

Directory of Open Access Journals (Sweden)

Lynch John Douglas

1999-11-01

Full Text Available Tres veces Director del Instituto de Ciencias Naturales, el Profesor Honorario Pedro M. Ruiz C. falleció en Bogotá el 12 de septiembre de 1998. Con su muerte, Colombia y la ciencia perdieron a un gran trabajador y sus colegas a un gran amigo.

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.

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.

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.

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.

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.

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.

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

Directory of Open Access Journals (Sweden)

D’Urso, C. H.

2005-12-01

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

Pedro de Valencia, Francisco de Gurmendi and the Plomos de Granada

Directory of Open Access Journals (Sweden)

Magnier, Grace

2003-12-01

Full Text Available The Inquisition in 1618 seized all the papers of Pedro de Valencia, renowned humanist, biblical scholar and chronicler of Philip III. The papers of other members of his circle were also confiscated. In this article I examine the two most important texts: Sobre el pergamino y láminas de Granada of Valencia and a Libelo Segundo of Francisco de Gurmendi, interpreter of Oriental languages for Philip III. The article is structured around Gurmendi's response to a memorial published in 1617 by Archbishop Pedro de Castro in defence of one of his translators. Gurmendi, working from his translation of the first two Lead Books, shows how these contain heretical ideas on the Trinity and how the memorialista has mistranslated many passages.

En 1618 la Inquisición confiscó todos los papeles de Pedro de Valencia, humanista insigne, exegeta bíblico y cronista del reino y de las Indias de Felipe III. También confiscó los papeles de otros miembros de su círculo. En este artículo examino los dos textos más importantes: Sobre el pergamino y láminas de Granada de Valencia y un Libelo segundo de Francisco de Gurmendi, intérprete en lenguas orientales del rey. El artículo se centra en la respuesta de Gurmendi a un memorial del Arzobispo Pedro de Castro en el que se defiende a uno de sus traductores. Partiendo de su traducción de los dos primeros libros plúmbeos, Gurmendi muestra las herejías trinitarias que éstos contienen y cómo el memorialista ha traducido mal muchos pasajes.

Pedro Salinas: la letra y la persona

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Escartín Gual, Montserrat

2002-12-01

Full Text Available This article is a Pedro Salinas's homage in the fifty anniversary of his death. Here, we analise his attitude in front of life and his securities through his poems, personal letters and essais. The poet criticizes the materialistic american stil of life, where he should live during his exile until his death (1936-1951. Against the hurry, the profitable things, the technology, the money..., Salinas believes in his language, slowness, friendship, contemplation of countryside, art, spiritualism, optimism, etc. Son of the Institución Libre de Enseñanza's ideas, his personal ethics looked for the biggest perfection trought the will.Este artículo es un homenaje a Pedro Salinas al cumplirse el cincuentenario de su muerte. En él, se analiza su actitud ante la vida y sus valores a través de sus poesías, cartas personales y ensayos. El poeta critica el materialismo del modelo americano en el que se vio obligado a vivir desde que se exilió hasta su muerte (1936-1951. Frente a la prisa, lo rentable, la tecnología, el dinero...; Salinas cree en su idioma, la lentitud, la amistad, la contemplación del paisaje, el arte, lo espiritual, el optimismo, etc. Hijo de las ideas de la Institución Libre de Enseñanza, su ética personal buscó la mayor perfección a través de la voluntad.

Aporte a la geología del Alto de Mogna, al norte de la depresión del Tulum, provincia de San Juan A contribution to the Geology of the Mogna High, to the North of the Tulum depression, Province of San Juan

OpenAIRE

J.J. Zambrano; G. Suvires

2005-01-01

El Alto de Mogna, elevación estructural situada en la parte central de la provincia de San Juan, entre las provincias geológicas de las Sierras Pampeanas y la Precordillera Oriental, tiene rumbo este-oeste, transversal a las estructuras de las mencionadas cadenas montañosas, y separa dos depresiones tectónicas regionales: el valle del Bermejo, al norte, y la depresión de Tulum, al sur. En esta elevación estructural afloran fallas y pliegues, cuyo rumbo es prácticamente este-oeste, salvo en la...

Expedition 8 Crew Interview: Pedro Duque

Science.gov (United States)

2003-01-01

European Space Agency (ESA) astronaut Pedro Duque is interviewed in preparation for his flight to and eight day stay on the International Space Station (ISS) as part of the Cervantes mission. Duque arrived on the ISS with the Expedition 8 crew onboard a Soyuz TMA-3, the seventh Soyuz flight to the station. He departed from the ISS on a Soyuz TMA-2 with the Expedition 7 crew of the ISS. In the video, Duque answers questions on: the goals of his flight; his life and career path; the Columbus Module, which ESA will contribute to the ISS, the ride onboard a Soyuz, and the importance of the ISS.

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.

Lassa fever in post-conflict sierra leone.

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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

I prodromi della partita doppia in una corporazione monastica: la contabilità dell'Abbazia di San Pietro in Perugia dal 1461 al 1464

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Alessandro Montrone

2009-07-01

Nuestro análisis se concentra en el Diario y el Mayor de los años 1461 a 1464, es decir, más de treinta años antes de la publicación del Tractatus De Computis et Scripturis de Luca Pacioli. Ello demuestra que en esa época la contabilidad por partida doble ya era aplicada en la Abadía de San Pedro. Aunque esta contabilidad no registra ni el capital ni los beneficios, sí permitía de cualquier modo una mejor administración y una mejor toma de decisiones.

Pedro Gutierrez Bueno's Textbooks: Audiences, Teaching Practices and Chemical Revolution

Science.gov (United States)

Sanchez, Jose Ramon Bertomeu; Belmar, Antonio Garcia

2006-01-01

Pedro Gutierrez Bueno wrote two editions of a chemistry textbook between 1788 and 1802. The paper offers a comparative view of both editions taking into account Gutierrez Bueno's biography, his intended audience and the changes related to the so-called chemical revolution. Some conclusions are at odds with common images about scientific…

MOVIMENTOS DE MASSA NA BACIA DO RIO SÃO PEDRO, MUNICÍPIO DE NOVA FRIBURGO, ASSOCIADO AO EVENTO DE JANEIRO DE 2011 (Mass movement of the San Pedro river basin, the city of Nova Friburgo, associated with the event of january 2011)

OpenAIRE

SOUZA, Juliana Martins; ASEVEDO, Lorena Abreu; SOARES, Isabel Linhares Pereira; BERTOLINO, Ana Valéria Freire Allemão

2012-01-01

Os movimentos de massa são fenômenos naturais que interferem na evolução das formas de relevo e provocam danos de ordens sociais, físicas e econômicas. O objetivo central do trabalho é identificar as tipologias de movimentos de massa que ocorreram em janeiro de 2011, na bacia do rio São Pedro – município de Nova Friburgo, correlacionando com os tipos de cobertura vegetal, a frequência e intensidade das chuvas. Os pontos de movimentos de massa foram georreferenciados através do GPS de alta pre...

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...

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.

El impacto de la desecación de la laguna de Lerma en la gastronomía lacustre de San Pedro Tultepec de Quiroga, Estado de México

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Felipe Carlos Viesca González

2011-01-01

Full Text Available El objetivo de este trabajo es caracterizar la gastronomía lacustre en el Alto Lerma, prevaleciente antes y después de la desecación de la Laguna de Lerma, específicamente la de San Pedro Tultepec de Quiroga municipio de Lerma, en el Estado de México. Mediante la aplicación de la técnica etnográfica en la realización de la investigación de campo, se identificaron y localizaron a 30 personas adultas que aún entran a la laguna de Chimaliapan o Lerma, o que tienen conocimiento sobre los ingredientes lacustres y las preparaciones culinarias elaboradas con ellos. Además se realizaron visitas a los mercados locales e incursiones en la laguna y áreas aledañas con la guía de lugareños conocedores del entorno, con el fin de obtener información sobre estos productos. Se encontró que todavía se recolectan especies vegetales como nopales, hongos, papas de agua o apacloles y quelites, entre ellos berros o tiernitos y quintoniles. Asimismo, se aprovechan especies animales como patos, carpas, atepocates, ranas, acociles y ajolotes. Menos del 1% de la población estudiada aún elabora platillos basados en ingredientes extraídos de la laguna. Se preparan tamales de pescado, rana o carpa, acociles, hueva de carpa, carpas y patos de diversas maneras, chile relleno de támbulas y atepocates, y ranas empanizadas o fritas. Con base en lo anterior, se concluye, que a pesar de estar contaminada, todavía se extrae de la laguna de Chimaliapan una gran variedad de flora y fauna que se emplea para la alimentación, lo cual indica que estos recursos bióticos son una importante fuente para muchas familias, y que tienen un "buen potencial" de aprovechamiento.

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

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Francisco Javier Sahagún Sánchez

2013-06-01

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

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.

SierraDNA – Demonstrating the Usefulness of Direct ILS Database Access

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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.

Avaliação da sensibilidade da goiabeira 'Pedro Sato' ao ozônio

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Regina Maria de Moraes

2011-09-01

Full Text Available O objetivo deste trabalho foi avaliar a sensibilidade da goiabeira 'Pedro Sato' ao ozônio (O3, em comparação à cultivar Paluma, descrita como sensível. Oito plantas de cada cultivar foram submetidas separadamente a ar filtrado e a ar filtrado + O3, cinco horas por dia, durante quatro dias. Foram avaliadas fotossíntese (Asat, injúrias foliares visíveis e concentração de antocianinas e taninos. Plantas das duas cultivares também foram expostas, durante três meses, a condições ambientais em local contaminado por O3, tendo-se avaliado fotossíntese, injúrias foliares e crescimento. Plantas fumigadas com O3 apresentaram redução de Asat e da atividade fotoquímica, além de manifestação de injúrias foliares. 'Paluma' apresentou maior redução de Asat, injúrias foliares mais severas e redução de taninos. Quando exposta ao ambiente contaminado, 'Paluma' apresentou trocas gasosas mais altas, mas apresentou redução de Asat 30 dias antes que 'Pedro Sato'. O crescimento não foi afetado em 'Pedro Sato', cujas injúrias foliares tiveram menor incidência, severidade e precocidade do que em 'Paluma'. A menor taxa de crescimento de 'Paluma' indica maior sensibilidade ao O3. Apesar de responder com menor intensidade ao estresse induzido pelo O3, a cultivar Pedro Sato não pode ser considerada tolerante, pois apresenta danos fotoquímicos, injúrias foliares e alterações nos conteúdos de metabólitos secundários quando exposta a esse poluente.

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

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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.

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...

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...

Optical Design of COATLI: A Diffraction-Limited Visible Imager with Fast Guiding and Active Optics Correction

Science.gov (United States)

Fuentes-Fernández, J.; Cuevas, S.; Watson, A. M.

2018-04-01

We present the optical design of COATLI, a two channel visible imager for a comercial 50 cm robotic telescope. COATLI will deliver diffraction-limited images (approximately 0.3 arcsec FWHM) in the riz bands, inside a 4.2 arcmin field, and seeing limited images (approximately 0.6 arcsec FWHM) in the B and g bands, inside a 5 arcmin field, by means of a tip-tilt mirror for fast guiding, and a deformable mirror for active optics, both located on two optically transferred pupil planes. The optical design is based on two collimator-camera systems plus a pupil transfer relay, using achromatic doublets of CaF2 and S-FTM16 and one triplet of N-BK7 and CaF2. We discuss the effciency, tolerancing, thermal behavior and ghosts. COATLI will be installed at the Observatorio Astronómico Nacional in Sierra San Pedro Mártir, Baja California, Mexico, in 2018.

BIENESTAR PSICOLOGICO: ADULTOS MAYORES, ACTIVOS A TRAVES DEL VOLUNTARIADO

OpenAIRE

FERRADA MUNDACA; LESLIE ISABEL; FERRADA MUNDACA; LESLIE ISABEL

2011-01-01

El propósito del presente estudio fue establecer el grado de bienestar psicológico en adultos mayores voluntarios del programa "Asesores Seniors" de Senama Región Bio Bio y no voluntarios, usuarios del CESF AM San Pedro de la comuna de San Pedro de la Paz. Corresponde a un estudio cuantitativo, de tipo descriptivo, correlacional y comparativo. La muestra estuvo constituida por 60 adultos mayores, donde 30 de ellos corresponde al grupo de voluntarios y los otros 30 al grupo...

PEDAGOGUES AND TAES AT COLÉGIO PEDRO II - Historical and Identitarian Notes.

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Alessandra Pio

2016-07-01

Full Text Available The article aims at relating the process of development of a professional identity among pedagogues in Brazil, the historical path of Pedagogy as a course, the educational legislation in Brazil and Colégio Pedro II. Colégio Pedro II is an educational institution of excellence, whose history, of national importance, has dealt very little with working relationships outside the classroom. For this reason, the objective of this study is to promote discussions which, regarding professional identities, take into consideration not only the subject, but also the group to which they belong. In terms of theoretical support, the author relies on the sociological approach discussed by Dubar (2005 and the analysis of the history of pedagogy courses carried out by Silva (2006. In addition, other relevant instances are public selection notices for admission to Colégio Pedro II from 1946 to 2015, academic studies upon the theme and responses from entities and professionals in the field of Education upon the pedagogy course programmes. The author takes into account that identities of both the pedagogue and the educational matters technician (TAE are entangled at institutional level, which shows that the institution is still unsure of what to require and demand from both professionals. Although these educational matters professionals have licentiate degrees in other areas, it is still expected at institutional level that they act as specialists in education (pedagogue.

Pobreza, migración y desempleo: mujeres en la sierra tepehua de Hidalgo, México Pobreza, migración y desempleo: mujeres en la sierra tepehua de Hidalgo, México

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Pablo Vargas González

2009-12-01

Full Text Available For decades, the State of Hidalgo has been considered as an entity with deep social inequalities and scant social, economic and political development. As a result, there are conditions of exclusion, marginalization, racial discrimination and unequal access to the fundamental rights of its citizens; which are still present in the population census data published by Inegi 2000 and 2005.In the State of Hidalgo there are more than 4596 localities, of which 96% are less than 2500 inhabitants; the great majority of them are located in marginal «municipios» and regions and therefore they do not have the minimum indispensable conditions of welfare. But it is not only poverty but exclusion and vulnerability which affect these communities.In the sierra of Tepehua (San Bartolo Tutotepec, Huehuetla y Tenango, the rural communities, mostly indigenous, with agricultural economic vocation live in marginal conditions and the middlemanism —coyotaje— is a persistent flagellum that occurs even in public organisms. However, the rural inhabitants generate response processes to globalization through social capital and the women organisation.Por décadas el estado de Hidalgo ha sido considerado una entidad con profundas desigualdades sociales y escaso desarrollo social, económico y político. Por lo anterior, se observan condiciones de exclusión, marginación, discriminación y de un inequitativo acceso a los derechos fundamentales de los ciudadanos, todavía presentes en las cifras de los censos de población del Inegi de 2000 y 2005.En el estado de Hidalgo existen más de 4.596 localidades de las cuales el 96% son menores de 2500 habitantes, la gran mayoría están ubicadas en municipios y regiones marginadas y por consiguiente carecen del mínimo indispensable de bienestar; pero no solo es la pobreza sino que estas comunidades y sus habitantes se encuentran en condiciones de exclusión y vulnerabilidad.En la sierra tepehua (San Bartolo Tutotepec, Huehuetla

Metallic Biosorption Using Yeasts in Continuous Systems

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Karla Miriam Hernández Mata

2013-01-01

Full Text Available Mining effluents were found to be the main source of pollution by heavy metals of the surface water in the San Pedro River in Sonora, Mexico. The overall objective of this study was to determine the biosorption of Zn, Cu, Mn, and Fe with yeasts isolated from San Pedro River in a continuous system. The tests conducted in two reactors packed with zeolite connected in series. The first reactor was inoculated mixing two yeasts species, and the effluent of the first reactor was fed to second reactor. Subsequently, the first reactor was fed with contaminated water of San Pedro River and effluent from this was the second reactor influent. After 40 days of the experiment a reduction of 81.5% zinc, 76.5% copper, manganese 95.5%, and 99.8% of iron was obtained. These results show that the selected yeasts are capable of biosorbing zinc, copper, manganese, and iron under these conditions.

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...

SME competitiveness: An internationalization strategy for Dom Pedro Hotels

OpenAIRE

Feldmann, Hannah Henrike

2013-01-01

This paper studies the internationalization process of Dom Pedro to South Brazil. The company’s strategy is critically assessed and it is argued that a professionalization of corporate strategic planning is needed regarding further internationalization. This finding combined with a regional macro environment and hotel industry scanning helps deriving success factors for an expansion to South Brazil. Building on those factors, the market is analyzed regarding the most favorable hot...

The decline of Dom Pedro II's empire and health: neurophatogenic implications O declínio do império e da saúde de Dom Pedro II: implicações neuropatogênicas

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Marleide da Mota Gomes

2007-12-01

Full Text Available The main objective of this paper is to know the medical doctors of the Emperor, the preconized treatment, and the knowledge about diabetes at that time, its repercussions on the Emperor's nervous system, and the related political implications. A narrative revision was made, based on primary and secondary sources. Dom Pedro II was examined by the aristocracy of the medicine at the time, especially Jean-Martin Charcot, amongst the doctors of international reputation, and Cláudio Velho da Motta Maia, amongst the Brazilian doctors. Charcot diagnosed in the Monarch: mental stress, diabetic neuropathy, and a cerebral vascular lesion, probably a stroke, that he differentiated from other vascular obliterations elsewhere. He demonstrated his knowledge about diabetic neuropathy, possible topographical alternatives to justify the urinary incontinence, and Dom Pedro's weakness in the legs. Throughout his illness, Dom Pedro II presented others manifestations that contributed to his physical fragility, and that, certainly too, to his political decline, deposition and the proclamation of the Brazilian Republic.O objetivo principal deste artigo é conhecer os médicos do Imperador, o tratamento preconizado e o conhecimento da ocasião sobre o diabetes, principalmente sobre suas repercussões no sistema nervoso do imperador e suas implicações políticas. Isso foi feito por uma revisão narrativa, baseado em fontes primárias e secundárias. Dom Pedro II foi examinado na ocasião pela aristocracia da medicina, a ressaltar Jean-Martin Charcot, dentre os médicos de reputação internacional, e Cláudio Velho da Motta Maia, dentre os brasileiros. Charcot diagnosticou no Monarca, além de tensão mental, neuropatia diabética e quadro vascular cerebral que ele diferenciou de outras obliterações vasculares em localizações diversas. Ele demonstrou o seu conhecimento sobre a neuropatia diabética, possíveis alternativas topográficas para justificar a incontin

76 FR 67395 - Port Access Route Study: In the Approaches to Los Angeles-Long Beach and in the Santa Barbara...

Science.gov (United States)

2011-11-01

... defined limits where vessels must navigate with particular caution and within which the direction of... approach to the San Pedro Channel from the Pacific Ocean, particularly the area south of San Miguel, Santa...

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

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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.

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.

A new species of Trachymyrmex (Hymenoptera, Formicidae) fungus-growing ant from the Sierra Madre Oriental of northeastern Mexico

Science.gov (United States)

Sánchez-Peña, Sergio R.; Chacón-Cardosa, Manuela Citlali; Canales-del-Castillo, Ricardo; Ward, Lauren; Resendez-Pérez, Diana

2017-01-01

Abstract Here we describe a new species of Trachymyrmex, T. pakawa sp. n., from the Gran Sierra Plegada range of the Sierra Madre Oriental, in the states of Coahuila and Nuevo Leon, northeastern Mexico. Trachymyrmex pakawa is a large-sized species compared to other North American Trachymyrmex. Its geographic distribution includes the piedmont of the Gran Sierra Plegada at La Estanzuela, Monterrey, as well as peripheral mountains segregated from the Sierra Madre Oriental (Cerro de las Mitras, Sierra de Zapalinamé, Cañon de San Lorenzo, Cerro de las Letras). The preferred habitats of T. pakawa include oak-pine forest at La Estanzuela, xeric oak forest at Zapalinamé and mesic Chihuahuan desert scrub with sotol (Dasylirion) at other sites. All localities are on slopes, on very rocky, shallow lithosols overlaying large boulders. This species nests under and between large boulders and rocks. It has not been observed on alluvial or better developed, deeper soils, and it is absent from sites with human activity (urban, disturbed, and landscaped areas). It is closely related to and morphologically similar to Trachymyrmex smithi. The known distribution ranges of T. pakawa and T. smithi almost overlap in Saltillo, Coahuila state. The main character that distinguishes the new species from T. smithi is longer antennal scapes in T. pakawa; also, different nesting habits (rocky slopes vs. alluvial sites or deep sand in T. smithi), and geographic distribution. Phylogenetic analysis of DNA sequences from the mitochondrial marker cytochrome c oxidase subunit I (COI) and the first intron of the F1 copy of the nuclear protein-coding gene Elongation Factor 1- α (EF1-α-F1) confirm a sister-species relationship between T. pakawa and T. smithi. Bayesian coalescent analyses indicate a divergence time of about 8.00 million years before present (95% confidence interval: 4.8–11.5 mya) between T. pakawa and T. smithi. The divergence of the lineages of T. pakawa and T. smithi could have

A new species of Trachymyrmex (Hymenoptera, Formicidae fungus-growing ant from the Sierra Madre Oriental of northeastern Mexico

Directory of Open Access Journals (Sweden)

Sergio R. Sánchez-Peña

2017-10-01

Full Text Available Here we describe a new species of Trachymyrmex, T. pakawa sp. n., from the Gran Sierra Plegada range of the Sierra Madre Oriental, in the states of Coahuila and Nuevo Leon, northeastern Mexico. Trachymyrmex pakawa is a large-sized species compared to other North American Trachymyrmex. Its geographic distribution includes the piedmont of the Gran Sierra Plegada at La Estanzuela, Monterrey, as well as peripheral mountains segregated from the Sierra Madre Oriental (Cerro de las Mitras, Sierra de Zapalinamé, Cañon de San Lorenzo, Cerro de las Letras. The preferred habitats of T. pakawa include oak-pine forest at La Estanzuela, xeric oak forest at Zapalinamé and mesic Chihuahuan desert scrub with sotol (Dasylirion at other sites. All localities are on slopes, on very rocky, shallow lithosols overlaying large boulders. This species nests under and between large boulders and rocks. It has not been observed on alluvial or better developed, deeper soils, and it is absent from sites with human activity (urban, disturbed, and landscaped areas. It is closely related to and morphologically similar to Trachymyrmex smithi. The known distribution ranges of T. pakawa and T. smithi almost overlap in Saltillo, Coahuila state. The main character that distinguishes the new species from T. smithi is longer antennal scapes in T. pakawa; also, different nesting habits (rocky slopes vs. alluvial sites or deep sand in T. smithi, and geographic distribution. Phylogenetic analysis of DNA sequences from the mitochondrial marker cytochrome c oxidase subunit I (COI and the first intron of the F1 copy of the nuclear protein-coding gene Elongation Factor 1- α (EF1-α-F1 confirm a sister-species relationship between T. pakawa and T. smithi. Bayesian coalescent analyses indicate a divergence time of about 8.00 million years before present (95% confidence interval: 4.8–11.5 mya between T. pakawa and T. smithi. The divergence of the lineages of T. pakawa and T. smithi could

Groundwater quality in the Madera and Chowchilla subbasins of the San Joaquin Valley, California

Science.gov (United States)

Shelton, Jennifer L.; Fram, Miranda S.; Belitz, Kenneth

2013-01-01

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 untreated groundwater quality and increases public access to groundwater-quality information. The Madera and Chowchilla subbasins of the San Joaquin Valley constitute one of the study units being evaluated. The Madera-Chowchilla study unit is about 860 square miles and consists of the Madera and Chowchilla groundwater subbasins of the San Joaquin Valley Basin (California Department of Water Resources, 2003; Shelton and others, 2009). The study unit has hot, dry summers and cool, moist winters. Average annual rainfall ranges from 11 to 15 inches, most of which occurs between November and February. The main surface-water features in the study unit are the San Joaquin, Fresno, and Chowchilla Rivers, and the Madera and Chowchilla canals. Land use in the study unit is about 69 percent (%) agricultural, 28% natural (mainly grasslands), and 3% urban. The primary crops are orchards and vineyards. The largest urban area is the city of Madera. The primary aquifer system is defined as those parts of the aquifer corresponding to the perforated intervals of wells listed in the California Department of Public Health (CDPH) database. In the Madera-Chowchilla study unit, these wells typically are drilled to depths between 200 and 800 feet, consist of a solid casing from land surface to a depth of about 140 to 400 feet, and are perforated below the solid casing. Water quality in the primary aquifer system may differ from that in the shallower and deeper parts of the aquifer system. The primary aquifer system in the study unit consists of Quaternary-age alluvial-fan and fluvial deposits that were formed by the rivers draining the Sierra Nevada. Sediments consist of gravels, sands

Apología y censura: posibles autores de las crónicas favorables a Pedro I de Castilla

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González de Fauve, María Estela

2006-06-01

Full Text Available

The present historiography considers that from the times of Pedro I of Castile, favorable stories to this king must have existed which were destroyed after the triumph of the Trastámara dynasty, only interested in making sure a negative picure of the ";Cruel"; king was shown. In this work we have analyzed possible authors of the chronicles called ";true"; versus Ayala's ";false";, as well as the Relación de la vida del Rey D. Pedro attributed to Gracia Dei. The research allows us to conclude that various characteristics attributed to these characters, as well as the authorship of the chronicles they are adscripted to, are part of an advertising campaign started in the sixteenth century by one branch of the Castilla lineage that looks for the reaffirmation as legitimate descendants of Pedro I.

Health complications of female genital mutilation in Sierra Leone

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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

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…

Pedro Calderón de la Barca, Autos sacramentales - Francisco de Quevedo, Prosa satírica

OpenAIRE

Plata, Fernando

2011-01-01

Reseñas de Pedro Calderón de la Barca, Autos sacramentales. El divino Jasón. El gran mercado del Mundo. El gran teatro del Mundo. La viña del Señor, ed. I. Arellano, Homo Legens (Bibliotheca Homolegens, 50), Madrid, 2010, 406 pp. ISBN: 978-84-92518-54-8 y Francisco de Quevedo, Prosa satírica, ed. I. Arellano, Homo Legens (Bibliotheca Homolegens, 58), Madrid, 2011, 206 pp. ISBN: 978-84-92518-69-2. Reviews of Pedro Calderón de la Barca, Autos sacramentales. El divino Jasón. El gran mercado d...

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.

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

Comparative age and growth of common snook Centropomus undecimalis (Pisces: Centropomidae from coastal and riverine areas in Southern Mexico

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Martha A. Perera-Garcia

2013-06-01

Full Text Available Common snook Centropomus unidecimalis is an important commercial and fishery species in Southern Mexico, however the high exploitation rates have resulted in a strong reduction of its abundances. Since, the information about its population structure is scarce, the objective of the present research was to determine and compare the age structure in four important fishery sites. For this, age and growth of common snook were determined from specimens collected monthly, from July 2006 to March 2008, from two coastal (Barra Bosque and Barra San Pedro and two riverine (San Pedro and Tres Brazos commercial fishery sites in Tabasco, Mexico. Age was determined using sectioned saggitae otoliths and data analyzed by von Bertalanffy and Levenberg-Marquardt among others. Estimated ages ranged from 2 to 17 years. Monthly patterns of marginal increment formation and the percentage of otoliths with opaque rings on the outer edge demonstrated that a single annulus was formed each year. The von Bertalanffy parameters were calculated for males and females using linear adjustment and the non-linear method of Levenberg-Marquardt. The von Bertalanffy growth equations were FLt=109.21(1-e-0.21(t+0.57 for Barra Bosque, FLt=94.56(1-e-0.27(t+0.48 for Barra San Pedro, FLt=97.15(1-e-0.17(t+1.32 for San Pedro and FLt=83.77(1-e-0.26(t+0.49 for Tres Brazos. According to (Hotelling’s T², pEl robalo blanco Centropomus undecimalis representa un ingreso monetario significativo y un recurso alimentario para todas las comunidades rurales cercanas a su distribución. Se determinó la edad y crecimiento de esta especie. Los organismos se recolectaron mensualmente en los desembarcos de la pesca artesanal de las cooperativas de mayor contribución en la zona costera (Barra Bosque y San Pedro y ribereña (San Pedro y Tres Brazos entre julio 2006 y marzo 2008. La edad se determinó mediante otolitos seccionados. La edad estimada fue de 2 a 17 años. Mensualmente se estableció la

Partamona nigrilabris Pedro & Camargo, 2003, um novo sinônimo de P. nigrior (Cockerell, 1925 (Hymenoptera, Apidae Partamona nigrilabris Pedro & Camargo, 2003, a new synonym of P. nigrior (Cockerell, 1925 (Hymenoptera, Apidae

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João M. F. Camargo

2003-01-01

Full Text Available P. nigrilabris was described based on specimens wrongly labelled as from "Salvador-BA, Brasil". It is considered as a new synonym: Partamona nigrior (Cockerell, 1925 = P. nigrilabris Pedro & Camargo, 2003, syn. nov.

Aporte a la geología del Alto de Mogna, al norte de la depresión del Tulum, provincia de San Juan

OpenAIRE

J.J. Zambrano; G. Suvires

2005-01-01

El Alto de Mogna, elevación estructural situada en la parte central de la provincia de San Juan, entre las provincias geológicas de las Sierras Pampeanas y la Precordillera Oriental, tiene rumbo este-oeste, transversal a las estructuras de las mencionadas cadenas montañosas, y separa dos depresiones tectónicas regionales: el valle del Bermejo, al norte, y la depresión de Tulum, al sur. En esta elevación estructural afloran fallas y pliegues, cuyo rumbo es prácticamente este-oeste, salvo en la...

Free treatment, rapid malaria diagnostic tests and malaria village workers can hasten progress toward achieving the malaria related millennium development goals: the Médecins Sans Frontières experience from Chad, Sierra-Leone and Mali

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Katie Tayler-Smith

2011-02-01

Full Text Available Halving the burden of malaria by 2015 and ensuring that 80% of people with malaria receive treatment is among the health related targets of the Millennium Development Goals (MDGs. Despite political momentum toward achieving this target, progress is slow and many with malaria (particularly in poor and rural communities in Africa are still without access to effective treatment. Finding ways to improve access to anti-malarial treatment in Africa is essential to achieve the malaria related and other MDG targets. During its work in Chad, Sierra Leone and Mali in the period 2004 to 2008, Médecins Sans Frontières showed that it was possible to significantly improve access to effective malaria treatment through: i the removal of health centre level user fees for essential healthcare for vulnerable population groups, ii the introduction of free community based treatment for children using malaria village workers to diagnose and treat simple malaria in communities where geographical and financial barriers limited access to effective malaria care, iii the improved diagnosis and treatment of malaria using rapid diagnosis tests and artemisinin based combination therapy, at both health facilities and in the community. This paper describes and discusses these strategies and their related impact.

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.

Silence, Metaperformance, and Communication in Pedro Almodóvar's "Hable con ella"

Science.gov (United States)

Fellie, Maria C.

2016-01-01

Many scenes in Pedro Almodóvar's "Hable con ella" (2002) include shots of metaperformances such as silent films, dances, television shows, concerts, and bullfights. Spectators often observe passive characters who are in turn observing. By presenting these performances within cinematic performance, Almodóvar highlights our role as viewers…

Comparison of Public Perception in Desert and Rainy Regions of Chile Regarding the Reuse of Treated Sewage Water

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Daniela Segura

2018-03-01

Full Text Available The objective of this study was to compare the public perception in desert and rainy regions of Chile regarding the reuse of treated sewage water. The methodology of this study consisted of applying a survey to the communities of San Pedro de Atacama (desert region and Hualqui (rainy region to identify attitudes about the reuse of sewage water. The survey was applied directly to men and women, 18 to 90 years old, who were living in the studied communities. The results indicate that inhabitants of San Pedro de Atacama (desert region were aware of the state of their water resources, with 86% being aware that there are water shortages during some part of the year. In contrast, only 55% of residents in Hualqui (rainy region were aware of water shortages. With respect of the reuse of treated sewage water, 47% of respondents in San Pedro de Atacama understood the concept, as compared to 27% in Hualqui. There was more acceptance of using treated sewage water for non-potable purposes than as drinking water.

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...

Slip rate on the San Diego trough fault zone, inner California Borderland, and the 1986 Oceanside earthquake swarm revisited

Science.gov (United States)

Ryan, Holly F.; Conrad, James E.; Paull, C.K.; McGann, Mary

2012-01-01

The San Diego trough fault zone (SDTFZ) is part of a 90-km-wide zone of faults within the inner California Borderland that accommodates motion between the Pacific and North American plates. Along with most faults offshore southern California, the slip rate and paleoseismic history of the SDTFZ are unknown. We present new seismic reflection data that show that the fault zone steps across a 5-km-wide stepover to continue for an additional 60 km north of its previously mapped extent. The 1986 Oceanside earthquake swarm is located within the 20-km-long restraining stepover. Farther north, at the latitude of Santa Catalina Island, the SDTFZ bends 20° to the west and may be linked via a complex zone of folds with the San Pedro basin fault zone (SPBFZ). In a cooperative program between the U.S. Geological Survey (USGS) and the Monterey Bay Aquarium Research Institute (MBARI), we measure and date the coseismic offset of a submarine channel that intersects the fault zone near the SDTFZ–SPBFZ junction. We estimate a horizontal slip rate of about 1:5 0:3 mm=yr over the past 12,270 yr.

A pedagogia da ilustração e os guarani-missioneiros no Rio Grande de São Pedro

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Protásio Paulo Langer

2012-07-01

Full Text Available  O presente trabalho visa abordar o projeto pedagógico do iluminismo português imposto aos guaranis provenientes dos Sete Povos das Missões e estabelecidos na aldeia de Nossa Senhora dos Anjos, entre 1762 e 1801. Consideramos o tema relevante não só por suscitar problemas relativos aos primórdios da implantação da educação oficial no Rio Grande do Sul, mas também pelos resultados obtidos com o programa civilizatório pombalino que objetivava a substituição cultural dos guarani-missioneiros no Rio Grande de São Pedro. Palavras-chave: guarani-missioneiros, iluminismo, Rio Grande de São Pedro. Abstract This paper aims to approach the pedagogical project based on the portuguese iluminism which was imposed upon the Guarani indians of the Sete Povos das Missões (the Seven Peoples of the Missions that lived in the aldeia Nossa Senhora dos Anjos (Our Lady of the Angel's village between 1762 and 1801. This subject is relevant because it raises problems related to the early implementation of the official education in Rio Grande do Sul, as wel as the results obtained through the civilizatory program devised by marquês de Pombal which intended to promote the westernization of the Guarani indians in the Province of the Rio Grande de São Pedro. Keywords:  Guarani indians, iluminism, Rio Grande de São Pedro.

Goldmining, dispossessing the commons and multi-scalar responses

NARCIS (Netherlands)

Stoltenborg, Didi; Boelens, Rutgerd

2017-01-01

In 1996, Minera San Xavier (MSX), a Mexican tributary of the Canadian mining company Newgold Inc., announced it wanted to start a large open-pit gold and silver mine in the municipality of Cerro de San Pedro, in the state of San Luis Potosí. The mining site occupies 373 hectares of ejido 2

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

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

San Francisco folio, California, Tamalpais, San Francisco, Concord, San Mateo, and Haywards quadrangles

Science.gov (United States)

Lawson, Andrew Cowper

1914-01-01

The five sheets of the San Francisco folio the Tamalpais, Ban Francisco, Concord, Ban Mateo, and Haywards sheets map a territory lying between latitude 37° 30' and 38° and longitude 122° and 122° 45'. Large parts of four of these sheets cover the waters of the Bay of San Francisco or of the adjacent Pacific Ocean. (See fig. 1.) Within the area mapped are the cities of San Francisco, Oakland, Berkeley, Alameda, Ban Rafael, and San Mateo, and many smaller towns and villages. These cities, which have a population aggregating about 750,000, together form the largest and most important center of commercial and industrial activity on the west coast of the United States. The natural advantages afforded by a great harbor, where the railways from the east meet the ships from all ports of the world, have determined the site of a flourishing cosmopolitan, commercial city on the shores of San Francisco Bay. The bay is encircled by hilly and mountainous country diversified by fertile valley lands and divides the territory mapped into two rather contrasted parts, the western part being again divided by the Golden Gate. It will therefore be convenient to sketch the geographic features under four headings (1) the area east of San Francisco Bay; (2) the San Francisco Peninsula; (3) the Marin Peninsula; (4) San Francisco Bay. (See fig. 2.)

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 ...

LA NOCIÓN DE PERSONA Y EL CONCEPTO DE IXTLAMATKI EN LA VISIÓN DEL MUNDO DE LOS NAHUAS DE LA SIERRA NEGRA DE PUEBLA

Directory of Open Access Journals (Sweden)

Laura Romero

2007-12-01

Full Text Available En la cosmovisión de los nahuas de San Sebastián Tlacotepec, municipio perteneciente a la Sierra Negra de Puebla, la noción de persona es uno de los ejes vertebrales para entender la forma en que es concebido elixtlamatki, el que sabe ver, especialista ritual encargado de los problemas de salud originados por la pérdida del alma, el daño al animal compañero y la brujería. A partir del análisis de los atributos otorgados al ixtlamatki, mismos que lo definen como un ser humano “especial”, podemos entender su función como intermediario entre el mundo humano y el “mundo-otro”, sus capacidades como “recuperador” de almas, su capacidad de transformarse en animal, la fortaleza de sus entidades anímicas y su facultad de actuar a voluntad durante sus sueños.   ABSTRACT In the world view of the nahua population of San Sebastian Tlacotepec, a village localized in the region denominated Sierra Negra in the state of Puebla, the “notion of person” is one of the principals elements necessary to understand the concept of ixtlamatki, “ the one who knows how to see”, ritual specialist in charge of health problems en cases like loss of soul, witchcraft or when the alter ego has been hurt. Beginning with the analysis of his attributes, which define him as special human being, we come closer to understand his function as intermediary between the human world and the “other world”; his power as “soul retriever” and other special abilities, for example, his capacity of transforming himself as well as his faculty to act intentionally in his dreams.

Performance: travestismos y política en las crónicas de Pedro Lemebel

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Regina Vanesa Cellino

2015-08-01

Full Text Available En este trabajo se indagará sobre la relación que existe entre las crónicas urbanas de Pedro Lemebel, La esquina es mi corazón (1995 y Loco afán. Crónicas de sidario (1996, en el contexto de la posdictadura chilena, y su participación en las performances de Las Yeguas del Apocalipsis, a las que consideramos una articulación entre cuerpo, política y teatralidad. Este texto parte de las siguientes preguntas: ¿Qué afinidad/es hay entre las crónicas literarias de Lemebel y las performances de Las Yeguas del Apocalipsis? ¿Qué relación existe entre el cuerpo, la homosexualidad, el travestismo y la performance? ¿Cómo se manifiesta ese vínculo en las crónicas de Pedro Lemebel? 

La melancolía en la obra de Pedro Gatell, cirujano y marino ilustrado

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Peset, Jose Luis

2014-06-01

Full Text Available Melancholy is an emotion that has been in fashion from the Renaissance until now. During the Enlightenment, human reason was accompanied by strong feelings preparing for Romanticism. A prominent personality in this field was Pedro Gatell, naval surgeon and untiring writer. Throughout his novels and moral writings he shows the main developments coming from the experience of melancholy and its interpretation.La melancolía es una emoción de moda desde el Renacimiento hasta hoy, también en la Ilustración la razón se vio acompañada de fuertes sentimientos que anunciaban el Romanticismo. Personaje destacado en este terreno es Pedro Gatell, cirujano naval e infatigable escritor. En sus novelas y textos morales muestra las principales novedades que surgen en la vivencia melancólica y en su comprensión.

ANÁLISE DA EFETIVIDADE SOCIOECONÔMICA DO PRODECER III NO MUNICÍPIO DE PEDRO AFONSO, TOCANTINS SOCIOECONOMIC ANALYSIS OF PRODECER III EFFECTIVENESS IN PEDRO AFONSO, TOCANTINS STATE, BRAZIL

Directory of Open Access Journals (Sweden)

Alan Kardec Barbiero

2009-10-01

Full Text Available

O artigo se propõe a analisar os efeitos do Programa de Cooperação Nipobrasileira para o Desenvolvimento dos Cerrados (Prodecer, terceira fase, sobre indicadores de qualidade de vida do município de Pedro Afonso, Estado do Tocantins. Os resultados da pesquisa apontam que o Prodecer III trouxe, por um lado, grandes avanços na vida econômica da população de Pedro Afonso, mas contribuiu, também, para o aumento do quadro de pobreza urbana e exclusão social.

PALAVRAS-CHAVE: Impacto social; desenvolvimento sustentável; dimensão social; Prodecer.

This paper analyzes the impacts caused by the Nipo-Brazilian Cooperation Program for the Development of Cerrados (Prodecer, third phase, on quality of life of the municipality of Pedro Afonso, State of Tocantins

Geology of the continental margin beneath Santa Monica Bay, Southern California, from seismic-reflection data

Science.gov (United States)

Fisher, M.A.; Normark, W.R.; Bohannon, R.G.; Sliter, R.W.; Calvert, A.J.

2003-01-01

We interpret seismic-reflection data, which were collected in Santa Monica Bay using a 70-in3 generator-injector air gun, to show the geologic structure of the continental shelf and slope and of the deep-water, Santa Monica and San Pedro Basins. The goal of this research is to investigate the earthquake hazard posed to urban areas by offshore faults. These data reveal that northwest of the Palos Verdes Peninsula, the Palos Verdes Fault neither offsets the seafloor nor cuts through an undeformed sediment apron that postdates the last sea level rise. Other evidence indicates that this fault extends northwest beneath the shelf in the deep subsurface. However, other major faults in the study area, such as the Dume and San Pedro Basin Faults, were active recently, as indicated by an arched seafloor and offset shallow sediment. Rocks under the lower continental slope are deformed to differing degrees on opposite sides of Santa Monica Canyon. Northwest of this canyon, the continental slope is underlain by a little-deformed sediment apron; the main structures that deform this apron are two lower-slope anticlines that extend toward Point Dume and are cored by faults showing reverse or thrust separation. Southeast of Santa Monica Canyon, lower-slope rocks are deformed by a complex arrangement of strike-slip, normal, and reverse faults. The San Pedro Escarpment rises abruptly along the southeast side of Santa Monica Canyon. Reverse faults and folds underpinning this escarpment steepen progressively southeastward. Locally they form flower structures and cut downward into basement rocks. These faults merge downward with the San Pedro Basin fault zone, which is nearly vertical and strike slip. The escarpment and its attendant structures diverge from this strike-slip fault zone and extend for 60 km along the margin, separating the continental shelf from the deep-water basins. The deep-water Santa Monica Basin has large extent but is filled with only a thin (less than 1.5-km

Levantamiento de suelos de la reserva ecológica sierra de San Juan, Nayarit, México

Directory of Open Access Journals (Sweden)

José I. Bojórquez Serrano

1995-01-01

Full Text Available A soil survey was carried out in the Ecological Reservation of San Juan and soils units were defined in order to establish their potential for sugar cane cultivation. Aerial photographs were used to define 12 soil mapping units based on landforms and the resulting soils; 5 of these were, consociations and 7 were associations. They were classified in a level of great groups when possible, resulting that most of them were included in the Order Andisol and Entisol, few in Inceptisol and even fewer in Alfisol.

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.

Reservoir Considerations and Direct Uses of São Pedro do Sul Hydromineral and Geothermal Field, Northern Portugal

Science.gov (United States)

Ferreira Gomes, L. M.; Neves Trota, A. P.; Sousa Oliveira, A.; Soares Almeida, S. M.

2017-12-01

São Pedro do Sul Hydromineral and Geothermal Field, located in the northern interior zone of Portugal (Lafões zone), has the greatest widespread utilization of geothermal energy in Portugal mainland and is the most important thermal centre from the economical revenues point of view, obtained from direct and indirect utilization of the thermal water, mostly for wellness, health, and leisure of human beings. Recent utilization includes district and greenhouses heating and even cosmetic applications. The Hydromineral Field includes two exploitable zones: the Termas and Vau Poles. The waters are recognised for their mineral and medicinal effects, since the time of the Romans about 2000 years ago and, later on, on the 12th century, by the first King of Portugal, D. Afonso Henriques. The traditional spring and the 500 m well (AC1), located in the Termas Pole, currently supplies artesian hot water flow of about 16.9 L/s with a temperature of 67 °C. Despite the low flow rate of the actual two exploration wells drilled in the Vau Pole, the geothermal potential is high; a new deep well is planned to be drilled in this zone where is expected to obtain fluid temperature of around 75 °C. The occurrence of São Pedro do Sul mineral water, included in the sulphurous type waters, are linked to Hercynian granitoids, emplaced between 290 and 321 Myr. There is a close relationship between the placement of the main hot springs and the Verin-Chaves-Penacova fault, namely Verin (Spain), Chaves, Moledo, and S. Pedro do Sul (Portugal) hot springs. Heat flow generated at shallow crustal zones by the radiogenic host mineral of the granitic rocks, added to the deep Earth heat flow, heats the cold water inflow along fractures. Open fracture network along the main faults allows the hot fluids reach the surface, thus giving chance to the occurrence of hot springs and mineralized cold springs. Coupling between fracture opening and density difference between cold water inflow and hot water

STS-95 Mission Specialist Pedro Duque in white room

Science.gov (United States)

1998-01-01

In the environmental chamber known as the white room, STS-95 Mission Specialist Pedro Duque of Spain, with the European Space Agency, is prepared by white room crew members Danny Wyatt (left) and Travis Thompson (right) for entry into the Space Shuttle Discovery for his first flight into space. The STS-95 mission, targeted for launch at 2 p.m. EST on Oct. 29, is expected to last 8 days, 21 hours and 49 minutes, and return to KSC at 11:49 a.m. EST on Nov. 7.

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...

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, ...

La encrucijada en Pedro Páramo de Juan Rulfo / The Crossroads in Pedro Páramo by Juan Rulfo

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Lilia Leticia García-Peña

2015-08-01

Full Text Available La obra de Juan Rulfo sintetiza la realidad del campo mexicano, captura el contorno de las identidades individuales y de la estructura de la interacción social del mundo que tanto le preocupó y del que es intérprete indiscutible, pero también supo convertir en materia narrativa aquellas atmósferas que rebasan el contexto mexicano y social. En este trabajo abordaré el tema de la encrucijada en el imaginario simbólico de Pedro Páramo (1955 como expresión de una reelaboración del mito de Hermes, analizaré cómo la novela de Juan Rulfo muestra estos ecos herméticos y qué sentido estético y sociocultural tiene esta resonancia mítica.

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.

Acúmulo de massa seca e marcha de absorção de nutrientes em mudas de goiabeira 'Pedro Sato' Dry matter storage and absorption route of nutrients in guava seedlings "Pedro Sato"

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Leonardo Mariano Dias Augostinho

2008-01-01

Full Text Available Objetivou-se determinar a curva de acúmulo da matéria seca de mudas e a marcha de absorção de macro e micronutrientes de goiabeira cultivar 'Pedro Sato'. O delineamento experimental foi o inteiramente casualizado, com três repetições. Foram utilizadas sete coletas de plantas de goiabeira 'Pedro Sato', em cultivo hidropônico, em casa de vegetação da Unesp, Campus de Jaboticabal. Nas coletas, avaliaram-se o crescimento das plantas e o acúmulo de nutrientes, a cada 15 dias, durante 120 dias após o transplantio. As mudas de goiabeira proporcionaram maior acúmulo de biomassa no órgão folha em relação ao caule e à raiz. Observou-se alta absorção dos nutrientes, no período de 60 a 90 dias após o transplantio, nas mudas de goiabeira. O acúmulo de nutrientes das mudas de goiabeira (planta inteira foi de 340, 44, 380, 173, 33 e 40 mg planta-1, respectivamente para N, P, K, Ca, Mg, S, e de 743, 118, 5.114, 2.151, 566 mg planta-1, respectivamente, para B, Cu, Fe, Mn e Zn.This work aimed to determine the dry matter storage curve of seedlings and the absorptions of macro and micro nutrients of guava tree cultivar 'Pedro Sato'. It was used randomized design with three repetitions. Seven samples of guava plants cultivar 'Pedro Sato' were used in hydroponic growth in the greenhouse located at UNESP- Jaboticabal Campus, São Paulo State, Brazil. It was evaluated the samples of plants growing and the nutrients storage every 15 days, during 120 days after the transplanting. The seedlings of guava priorized the dry matter storage of leaves in relation of the stem and leaves. The guava seedlings presented high absorption of nutrients in the period of 60 and 90 days after the transplanting. The nutrients storage of the guava seedlings (whole plant were of : 340; 44; 380; 173; 33; and 40 mg plant-1, respectively, for N, P, K, Ca, Mg, S and 743; 118; 5114; 2151; 566µg plant-1, respectively for B, Cu, Fe, Mn, and Zn.

Mission Specialist Pedro Duque undergoes equipment check prior to launch

Science.gov (United States)

1998-01-01

In the Operations and Checkout Building, STS-95 Mission Specialist Pedro Duque of Spain, with the European Space Agency, gets help with his suit from suit technician Tommy McDonald. The STS-95 crew were conducting flight crew equipment fit checks prior to launch on Oct. 29. STS-95 is expected to launch at 2 p.m. EST on Oct. 29, last 8 days, 21 hours and 49 minutes, and land at 11:49 a.m. EST on Nov. 7.

Un documento desconocido de Pedro Fermín de Vargas

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Alberto Corradine Angulo

1967-11-01

Full Text Available Varios autores se han detenido a estudiar la vida singularísima de don Pedro Fermín de Vargas, quien bien podría llevar con sobrados méritos el título de Precursor; testimonio de este aserto son sus escritos y su vida misma, llenas de la profundidad de sus observaciones, que presentaba a las autoridades virreinales con gran sencillez y naturalidad, aún cuando pretendía ocultar el verdadero alcance de sus planteamientos

MESOZOIC MAGMATISM IN EAST URUGUAY: PETROLOGICAL CONSTRAINTS RELATED TO THE SIERRA SAN MIGUEL REGION

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Conti Bruno

2009-07-01

Full Text Available This work presents new results of a detailed geological and structural investigation focusing the easternmost Uruguayan Mesozoic magmatic occurrences related to the south Atlantic opening. Lithological descriptions, their stratigraphic relationships and complimentary lithochemical characterizations carried out in the San Miguel region (East Uruguay are presented. Three volcanic/sub-volcanic units have been recognized. The felsic volcanic association is composed by rhyolitic - dacitic flows, mainly with porphyritic textures and sub-alkalinenature and related pyroclastic rocks. The felsic sub-volcanic association is characterized by granophyres of about 25 km2 of exposed area, cross- cut by mafic and felsic dykes. Finally, a mafic association has been identified characterized by dykes and a small intrusion of gabbroic composition.All these units are Mesozoic in age (130 - 127 Ma and according to their chemical nature they correspond tosub-alkaline to weak peralkaline magmas.

The Reliability of Methodological Ratings for speechBITE Using the PEDro-P Scale

Science.gov (United States)

Murray, Elizabeth; Power, Emma; Togher, Leanne; McCabe, Patricia; Munro, Natalie; Smith, Katherine

2013-01-01

Background: speechBITE (http://www.speechbite.com) is an online database established in order to help speech and language therapists gain faster access to relevant research that can used in clinical decision-making. In addition to containing more than 3000 journal references, the database also provides methodological ratings on the PEDro-P (an…

Los ingenios de carpintería en la construcción del Monasterio de San Lorenzo el Real de El Escorial

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Manuel José García Sanguino

2008-01-01

Full Text Available La considerable altura que fue alcanzando el Monasterio de San Lorenzo el Real de El Escorial requirió la construcción de grúas de madera para elevar del suelo los pesados bloques de granito gris de la Sierra de Guadarrama. Es en este preciso momento cuando algunos de los carpinteros, que trabajaban en tan insigne obra, pusieron al servicio de Felipe II su audacia y habilidad técnica. El análisis exhaustivo y riguroso de la documentación existente en la biblioteca del Monasterio de San Lorenzo de El Escorial, esclarece la autoría de la fabricación de estas máquinas o ingenios.The considerable height that the Monastery of San Lorenzo el Real de El Escorial was reaching, required the construction of wooden cranes to raise the heavy blocks of grey granite from the Guadarrama mountains. At that precise moment, some of the carpenters who were working on this notable construction, offered their courage and skills to Felipe II. The rigorous and comprehensive analysis of the existing documentation at the Royal Library in the Monastery clarifies who was responsible for the construction of those machines or devices.

Estimating the number of female sex workers in Côte d'Ivoire: results and lessons learned.

Science.gov (United States)

Vuylsteke, Bea; Sika, Lazare; Semdé, Gisèle; Anoma, Camille; Kacou, Elise; Laga, Marie

2017-09-01

To report on the results of three size estimations of the populations of female sex workers (FSW) in five cities in Côte d'Ivoire and on operational lessons learned, which may be relevant for key population programmes in other parts of the world. We applied three methods: mapping and census, capture-recapture and service multiplier. All were applied between 2008 and 2009 in Abidjan, San Pedro, Bouaké, Yamoussoukro and Abengourou. Abidjan was the city with the highest number of FSW by far, with estimations between 7880 (census) and 13 714 (service multiplier). The estimations in San Pedro, Bouaké and Yamoussoukro were very similar, with figures ranging from 1160 (Yamoussoukro, census) to 1916 (San Pedro, capture-recapture). Important operational lessons were learned, including strategies for mapping, the importance of involving peer sex workers for implementing the capture-recapture and the identification of the right question for the multiplier method. Successful application of three methods to estimate the population size of FSW in five cities in Côte d'Ivoire enabled us to make recommendations for size estimations of key population in low-income countries. © 2017 John Wiley & Sons Ltd.

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...

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

75 FR 38412 - Safety Zone; San Diego POPS Fireworks, San Diego, CA

Science.gov (United States)

2010-07-02

...-AA00 Safety Zone; San Diego POPS Fireworks, San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary... waters of San Diego Bay in support of the San Diego POPS Fireworks. This safety zone is necessary to... San Diego POPS Fireworks, which will include fireworks presentations conducted from a barge in San...

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.

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

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

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.

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.

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.

Pedro Duque Cornejo y la escultura barroca en Sevilla: nuevas aportaciones

Directory of Open Access Journals (Sweden)

Manuel García Luque

2013-01-01

Full Text Available Pedro Duque Cornejo (1678-1757 es una figura de capital importancia para comprender el desarrollo del barroco meridional durante la primera mitad del siglo XVIII. En este artículo damos a conocer una docena de nuevas atribuciones repartidas por Sevilla y provincia, que vienen a incrementar su ya de por sí nutrido catálogo y que avalan su carácter polifacético como escultor, pintor y arquitecto de retablos.

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.

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.

COMUNALIDAD Y BUEN VIVIR COMO ESTRATEGIAS INDÍGENAS FRENTE A LA VIOLENCIA EN MICHOACÁN: LOS CASOS DE CHERÁN Y SAN MIGUEL DE AQUILA

Directory of Open Access Journals (Sweden)

Josefina María Cendejas

2015-06-01

Full Text Available La escalada de violencia en la que vive el estado occidental de Michoacán, México, desde 2006, ha afectado con especial virulencia a las regiones de la Tierra Caliente, la Sierra Costa y la Meseta Purépecha. En este artículo se abordan dos casos de comunidades indígenas, una purépecha: Cherán, y una nahua: San Miguel de Aquila. Se describen y comparan las respuestas de ambas ante los embates del crimen organizado, en busca de los elementos que expliquen los resultados dramáticamente distintos que han obtenido a partir de sus respectivas iniciativas de respuesta colectiva ante la violencia. El enfoque desde la ecología política permite analizar la problemática de ambos casos como resultado del «asalto global a los bienes comunes», mientras que las nociones de comunalidad y buen vivir resultan pertinentes para identificar las fortalezas, las debilidades y las posibles consecuencias a futuro de los movimientos sociales. COMMUNALITY AND BUEN VIVIR AS INDIGENOUS STRATEGIES TO FACE VIOLENCE IN MICHOACAN: THE CASES OF CHERÁN AND SAN MIGUEL DE AQUILA The escalation of violence experienced since 2006 in the Western state of Michoacan, Mexico, has significantly affected the regions of Tierra Caliente, Sierra Costa and Meseta Purépecha. This article addresses two cases of indigenous communities, a Purepecha community in Cherán, and a Nahua community in San Miguel de Aquila. The collective responses of these two communities to the attacks of organized crime are described and compared in search of elements to explain the dramatically different results obtained by both communities. An approach from the perspective of political ecology allows for an analysis of the issues faced by each one of them as a result of the «global assault on common goods». The notions of comunalidad and buen vivir ‘good living’ are germane to an identification of strengths, weaknesses and possible future consequences of the social movements.

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

Directory of Open Access Journals (Sweden)

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.

Pedro García y el color del vidrio

Directory of Open Access Journals (Sweden)

María Teresa González Vicario

1999-01-01

Full Text Available El vidrio es uno de los materiales que ha alcanzado una dimensión escultórica en el siglo XX. Fue a mediados de este siglo, aproximadamente, cuando tuvo lugar su incorporación a la escultura contemporánea, y aunque España se ha sumado con un cierto retraso a esta nueva vertiente del lengueje escultórico, no son pocos los nombres de escultores que podrían ser citados por haber descubierto las posibilidades que el vidrio encierra como material escultórico. Uno de ellos es Pedro García, quien ha encontrado en el vidrio laminado, un material de procedencia industrial, su medio de expresión plástica. El análisis de su evolución artística hasta el momento actual constituye el objeto de este artículo, para lo cual se ha partido de unas primeras obras que obedecen a un planteamiento constructivo, racionalista, y en las que el vidrio ha sido trabajado en frío.The apparition of glass as a new material in sculpture dates from the middle of the XXth century. Spain has incorporated the sculptoric possibilities of glass later than other countries, but it has had an important following by an important group of sculptors. One of them is Pedro García, who has found in laminated glass, an industrial type of glass, his chief inspiration. This article traces the history of his artistic evolution. In the beginning his sculptures were very constructive and rational. Later, he developed a special technique working on glass in the process of formation through heat.

Carnaval de Sodoma de Pedro Antonio Valdez: retratos y vestiduras travestis

Directory of Open Access Journals (Sweden)

Julio Penenrey Navarro

2014-12-01

Full Text Available El travestimiento y las identidades queer son temas obviados y desentendidos por la crítica literaria que la novela Carnaval de Sodoma (2002, del escritor dominicano Pedro Antonio Valdez, ha merecido hasta el momento. A través del surgimiento de tres personajes travestidos de la obra —Tora, el Barón del cementerio-La Fortunata y Changsán- Princesa de Jade— examinaremos cómo la acción travesti desestabiliza el imaginario de naturalización y de complementariedad que el discurso normativo ha asignado a los géneros tradicionales (masculino/femenino, y repensaremos nociones como género y sexualidad, comúnmente establecidas por el pensamiento heterocentrado como entidades fijas e inmutables. Cross-dressing and queer identities constitute themes that are ignored and neglected by the literary critic that the novel Carnaval de Sodoma (2002, by Dominican writer Pedro Antonio Valdez has had until now. We will analyze three transvestite characters —Tora, the Baron of the graveyard-La Fortunata and Changsán-Princess of Jade— and examine how the transvestite action destabilize the naturalization and complementarization imaginary that the normative discourse has assigned to the traditional genders (masculine/femenine. We will rethink notions such as gender and sexuality, usually established by the heterocentered thought as fixe and immutable entities.

Genesis of sandstone-type uranium deposits in the Sierra Pintada district, Mendoza, Argentina: a Moessbauer study

International Nuclear Information System (INIS)

Labenski, F.; Saragovi-Badler, C.

1982-01-01

The genesis of sandstone-type uranium deposits in the Cochico Group (Permo-Triassic) of the Sierra Pintada district, San Rafael, Mendoza, has been studied. This is the most important uranium district in Argentina. Uranium sources, uranium transport and precipitation are discussed. Uraninite and brannerite, the main uranium minerals, occur within the matrix of sandstone. Several phenomena can be deduced regarding the depositional environment. Where oxygen was available, precipitation of hydrated ferric oxides occurred; γFe 2 O 3 .nH 2 O varieties (identified by Moessbauer spectroscopy) precipitated in the upper levels of the aquifer, where CO 2 partial pressure was lower, giving reddish or reddish-brown beds. The CO 2 partial pressure also determines the distribution of biogenic agents such as bacteria. Bacteria thus find a more favourable environment for their development and action in upper levels of an aquifer. In the corresponding horizons local reduction occurred where UO 2 precipitated; therefore the highest uranium concentrations correspond to sandstone levels with reddish or reddish-brown pigment. These pigments have been identified by Moessbauer spectroscopy. (Auth.)

La ex–residencia del Presidente Pedro Montt Montt en la comuna de Independencia: condición patrimonial, estado actual y argumentos para su conservación / The former residence of President Pedro Montt Montt in the town of Independence: asset condition, status and conservation arguments.

Directory of Open Access Journals (Sweden)

Sahady Villanueva, Antonio

2006-11-01

Full Text Available Los autores plantean un análisis FODA que busca valorizar la residencia de Pedro Montt, Presidente de Chile entre 1906 y 1910. La vivienda ha sobrevivido más de 100 años dando lugar a distintos programas y usuarios, pero ahora su mantenimiento requiere de una acción coordinada./The authors through a "FODA" type analysis demonstrate the patrimonial value of Pedro Montt's residency (president of chile from 1906 to 1910. The house has survived for over 100 years the change of use and dwellers, but now its maintenance requires a coordinated action.

Ética, cinema e documentário - Poéticas de Pedro Costa

Directory of Open Access Journals (Sweden)

Carlos Melo Ferreira

2009-12-01

Full Text Available There is no specific documentary ethics but ethics film covers it, without ignoring the rules of conduct recommended in the documentary. In the films of Pedro Costa the border is crossed between documentary and fiction, especially in its central diptych, according to an ethics and the technology determines its aesthetics. Making movies is ethical and political.

Volcanic stratigraphy of a high-altitude Mammuthus columbi (Tlacotenco, Sierra Chichinautzin), Central México

Science.gov (United States)

Guilbaud, Marie-Noelle; Arana-Salinas, Lilia; Siebe, Claus; Barba-Pingarrón, Luis Alberto; Ortiz, Agustín

2015-03-01

The discovery of a near complete skeleton of Mammuthus columbi in a cornfield located on the northern slopes of the Sierra Chichinautzin volcanic field south of Mexico City sparked the interest of the scientific and public community. Although remains of this species of mammoth are frequently discovered in central Mexico, this new find is at the southernmost and highest (ca. 2770 m asl) location yet within the Mexico Basin. In addition, the bones were found embedded in dark volcanic ash, raising the possibility of a relationship between the death of the animal and explosive activity at a neighboring scoria cone, as the site is located <10 km from several young volcanoes. Stratigraphic, sedimentological, geochemical, and geochronological studies were conducted at the discovery site and within a 5-km radius to determine the tephra stratigraphy in the area and constrain the source of the " mammoth ash" and the age and taphonomy of the fossil remains. Results show that the mammoth was buried after death by stream-flows (dilute lahars) that were triggered by torrential rain that remobilized loose scoriaceous ash ejected by the San Miguel cone some time after its eruption ca. 17,000 BP.

Mercury Bioaccumulation in Fish in a Region Affected by Historic Gold Morning: The South Yuba River, Deer Creek, and Bear River Watersheds, California, 1999

National Research Council Canada - National Science Library

May, Jason T; Hothem, Roger L; Alpers, Charles N; Law, Matthew A

2000-01-01

Mercury that was used historically for gold recovery in mining areas of the Sierra Nevada continues to enter local and downstream water bodies, including the Sacramento-San Joaquin Delta and the San...

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...

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.

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.

Acerca del rol de Pedro Bermúdez en el Cantar de Mio Cid: Un acercamiento a su figura épica

Directory of Open Access Journals (Sweden)

Érica Janín

2007-11-01

Full Text Available This work makes an attempt on getting close to the literary figure of Pedro Bermúdez in the Cantar de Mio Cid that allows it to characterize him as a peculiar hero; and proposes that Pedro represents a type of hero which is different to the model the Cantar means to coin, perhaps more primitive and alternative to the cidian paradigm, thus the virtues and values of the tradition of the most arcaic epic songs are not eliminated but displaced to a hero that seconds the protagonist, complementing him at the same time.

D. Pedro II tradutor: análise do processo criativo

Directory of Open Access Journals (Sweden)

Sergio Romanelli

2012-10-01

Full Text Available http://dx.doi.org/10.5007/2175-7968.2012v2n30p101   Nesta comunicação investiga-se o trabalho tradutório de D. Pedro II. Ao longo de sua vida demonstrou grande interesse pelas línguas. Falava alemão, italiano, espanhol, francês, latim, hebraico e tupi-guarani. Lia grego, árabe, sânscrito e provençal. Fez traduções do grego, do hebraico, do árabe, do francês, do alemão, do italiano e do inglês. Objetiva-se delinear o processo criativo do tradutor através da Crítica Genética e dos Estudos Descritivos da Tradução, pois ambos privilegiam o processo em relação ao produto final. As principais fontes documentais em que se baseiam as investigações aqui propostas são manuscritos autógrafos de traduções diretas do árabe, italiano, espanhol, francês e sânscrito, o diário do imperador, além de cartas e livros da sua biblioteca pessoal. Pretende-se reconstruir não somente o perfil de tradutor de D. Pedro II, suas ideias e atitudes acerca da atividade tradutória, mas também o estudo daquela rede única de contatos, leituras e influências procedentes de várias culturas, não somente europeias, que o imperador conseguiu tecer.

78 FR 19103 - Safety Zone; Spanish Navy School Ship San Sebastian El Cano Escort; Bahia de San Juan; San Juan, PR

Science.gov (United States)

2013-03-29

...-AA00 Safety Zone; Spanish Navy School Ship San Sebastian El Cano Escort; Bahia de San Juan; San Juan... temporary moving safety zone on the waters of Bahia de San Juan during the transit of the Spanish Navy... Channel entrance, and to protect the high ranking officials on board the Spanish Navy School Ship San...

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.…

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

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...

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...

Plan for a Sierra Nevada Hydrologic Observatory: Science Aims, Measurement Priorities, Research Opportunities and Expected Impacts

Science.gov (United States)

Bales, R.; Dozier, J.; Famiglietti, J.; Fogg, G.; Hopmans, J.; Kirchner, J.; Meixner, T.; Molotch, N.; Redmond, K.; Rice, R.; Sickman, J.; Warwick, J.

2004-12-01

In response to NSF's plans to establish a network of hydrologic observatories, a planning group is proposing a Sierra Nevada Hydrologic Observatory (SNHO). As argued in multiple consensus planning documents, the semi-arid mountain West is perhaps the highest priority for new hydrologic understanding. Based on input from over 100 individuals, it is proposed to initiate a mountain-range-scale study of the snow-dominated hydrology of the region, focusing on representative 1,000-5,000 km2 river basins originating in the Sierra Nevada and tributary to the Sacramento-San-Joaquin Delta. The SNHO objective is to provide the necessary infrastructure for improved understanding of surface-water and ground-water systems, their interactions and their linkages with ecosystems, biogeochemistry, agriculture, urban areas and water resources in semi-arid regions. The SNHO will include east-west transects of hydrological observations across the Sierra Nevada and into the basin and range system, in four distinct latitude bands that span much of the variability found in the semi-arid West. At least one transect will include agricultural and urban landscapes of the Great Central Valley. Investments in measurement systems will address scales from the mountain range down to the basin, headwater catchment and study plot. The intent is to provide representative measurements that will yield general knowledge as opposed to site-specific problem solving of a unique system. The broader, general science question posed by the planning group is: How do mountain hydrologic processes vary across landscapes, spanning a range of latitudes, elevations and thus climate, soils, geology and vegetation zones?\\" Embodied are additional broad questions for the hydrologic science community as a whole: (i) How do hydrologic systems that are subjected to multiple perturbations respond? (ii) How do pulses and changes propagate through the hydrologic system? (iii) What are the time lags and delays of stresses in

Reconnaissance Report on San Pedro Ports, California.

Science.gov (United States)

1979-01-01

Network Plan 21* Transit 22 ACV Terminal Concept 23* Pipelines 24* Flood Control Channels 25 Dominguez Channel Typical Sections 26 Proposed Monorail ...automated classification yard, possibly served by a monorail connection in addition to rail and truck 0 possible railroad consclidation by elimir.ation of one...coal or ore slurries. In addition to these designated process pipelines, countless intermingling new and existing domestic, fire and industrial water

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.

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.

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

The reflective look of Pedro Meyer: photography as the photography mediation problematic O olhar reflexivo de Pedro Meyer: a fotografia como problematizadora da própria mediação fotográfica

Directory of Open Access Journals (Sweden)

Ana Carolina Lima Santos

2011-08-01

Full Text Available This paper discusses Pedro Meyer’s photographs with special attention to the way that they are arranged as a kind of reflection about the language of photography and its capacity of mediation. In that, the pictures made by Meyer seem to have a symbolic dimension, which request a conscious activity of the spectator – contradicting the idea of image as a form of alienation proposed by Guy Debord. O presente artigo propõe uma discussão acerca do trabalho do fotógrafo Pedro Meyer a partir do entendimento de que suas imagens, ao explicitar e esgarçar limites de noções caras à natureza do fotográfico, funcionam como reflexão sobre a linguagem fotográfica e o seu poder de mediação. Discute-se, assim, como as imagens de Meyer assumem uma dimensão simbólica que solicitam do espectador uma prática de ativa – opondo-se à noção debordiana de imagens alienantes.

Los proyectos intercomunales y de escala local: el caso de Pedro de Valdivia Norte, ex polígono “La Contadora” junto al río Mapocho (1928-1978./ Intercommunal projects and local scale: the case of Pedro de Valdivia Norte, former polygon

Directory of Open Access Journals (Sweden)

Pávez Reyes, M. Isabel

2009-06-01

Full Text Available Revisando brevemente las principales proposiciones en proyectos intercomunales de Santiago para el barrio de Pedro de Valdivia Norte 1928-1978, y, además, un megaproyecto de campo deportivo en ese polígono, en los años 1940s, se observa el carácter de discontinuidad y ruptura, que suele estar presente en el modo de hacer la ciudad./Reviewing briefly the main proposals of inter-project for the Santiago neighborhood of Pedro de Valdivia Norte 1928-1978, and also a giant in the sports field site, in the 1940s, there was the nature of discontinuity and rupture, which often a factor in the way of making the city.

Compact High Resolution SANS using very cold neutrons (VCN-SANS)

International Nuclear Information System (INIS)

Kennedy, S.; Yamada, M.; Iwashita, Y.; Geltenbort, P.; Bleuel, M.; Shimizu, H.

2011-01-01

SANS (Small Angle Neutron Scattering) is a popular method for elucidation of nano-scale structures. However science continually challenges SANS for higher performance, prompting exploration of ever-more exotic and expensive technologies. We propose a compact high resolution SANS, using very cold neutrons, magnetic focusing lens and a wide-angle spherical detector. This system will compete with modern 40 m pinhole SANS in one tenth of the length, matching minimum Q, Q-resolution and dynamic range. It will also probe dynamics using the MIEZE method. Our prototype lens (a rotating permanent-magnet sextupole), focuses a pulsed neutron beam over 3-5 nm wavelength and has measured SANS from micelles and polymer blends. (authors)

Long-lived Control of Sierras Pampeanas Ranges on Andean Foreland Basin Evolution Revealed by Coupled Low-temperature Thermochronology and Sedimentology

Science.gov (United States)

Stevens Goddard, A.; Carrapa, B.; Larrovere, M.; Aciar, R. H.

2017-12-01

The Sierras Pampeanas ranges of west-central Argentina (28º- 31ºS) are a classic example of thick-skinned style basement block uplifts. The style and timing of uplift in these mountain ranges has widely been attributed to the onset of flat-slab subduction in the middle to late Miocene. However, the majority of low-temperature thermochronometers in the Sierras Pampeanas have much older cooling dates. Thermal modeling derived from new low-temperature thermochronometers in Sierra de Velasco, one of the highest relief (> 4 km) mountains in the Sierras Pampeanas, suggest that the rocks in these ranges have been at near-surface temperatures (history of long-lived topography illustrated in Sierra de Velasco can be expanded to other ranges in the Sierras Pampeanas by integrating multiple data sets.

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

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.

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

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.

Analyzing job entry examinations for Mathematics teachers of Colegio Pedro II during the 19th Century Analisando provas de concursos para professores de Matemática no Colégio Pedro II no século XIX

Directory of Open Access Journals (Sweden)

Flávia Soares

2010-06-01

Full Text Available In a attempt to investigate historic aspects of mathematics teaching, we ask what kind of instruments can be used to rebuild the professional trajectory of teachers and their practices, and what elements can be used to analyze the issues related to promotion of mathematics teacher in Brazil. One of these elements is public teacher job entry examinations. The analysis of these exams can show what were the requirements to work as a teacher and to clear other important questions about the conception about teachers at that time, about the contents they should teach, and others. This paper emphasizes the contents of the exams, and the formal requirements and abilities measured in those exams to act as a mathematics teacher in an important secondary education institution in the 19th Century, Colégio Pedro II. Keywords: Public contest. Mathematics teachers. Century XIX. Colégio Pedro II.Na tentativa de investigar aspectos históricos do ensino de Matemática, questionam-se que tipos de instrumentos podem ser utilizados para reconstruir a trajetória profissional do professor e de suas práticas e a partir de quais elementos pode-se examinar de maneira mais rigorosa as questões relativas ao acesso à profissão de professor de Matemática no Brasil. Um desses elementos são as provas de concursos. A análise dessas provas é capaz de revelar quais as exigências para o exercício do magistério e trazer à tona questões importantes a respeito da concepção da época em relação ao papel do professor, aos conteúdos que deveria ensinar, entre outros aspectos. Este trabalho enfatiza o conteúdo das provas, as exigências formais e as habilidades medidas nos exames para os cargos de professor de Matemática da principal instituição de ensino secundário do Brasil no século XIX, o Colégio Pedro II. Palavras-chave: Concursos. Professor de Matemática. Século XIX. Colégio Pedro II.

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...

Geology and stratigraphy of the San Lorenzo Tezonco deep well and its correlation to surrounding ranges, Mexico Basin

Science.gov (United States)

Arce, J. L.; Layer, P. W.; Morales-Casique, E.; Benowitz, J.

2014-12-01

The San Lorenzo Tezonco deep well stratigraphy records intense episodic volcanic activity in the Mexico Basin and surroundings during the past 20 Ma. The 2008-m deep lithological column is dominated by volcanic material, either as lava flows or pyroclastic deposits (97%), and only the upper most 70 m are composed of lacustrine deposits (3%). Based on geochronology and geochemistry, the lower part of the drill core is represented by rocks correlating to the Tepoztlán Formation (876-2008 m deep) that vary in composition from basaltic-andesite to rhyolite, and ages ranging from 13 to 21.2 Ma. On the surface this formation outcrops near the towns of Malinalco and Tepoztlán, ~43 km south of the deep well. Between depths of 581 and 875 m, volcanic rocks were recovered and are interpreted as lavas from the Sierra de las Cruces that vary in composition from andesite to dacite and range in age from 0.9 Ma to 5 Ma. Additionally, we documented rocks belonging to the Xochitepec Formation, outcropping around Xochimilco, in the Mexico City, with ages ranging from 1.2 and 1.7 Ma, in contrast with the Oligocene age proposed in previous works for these rocks. These new ages plus the chemical composition data, allow us to correlate the Xochitepec rocks with Sierra de las Cruces. Upward in the drill core (510-580 m) there are andesitic rocks that correlate with the 0.25 Ma Cerro de la Estrella volcanic center. The last volcanic package found in the well is correlated to the Santa Catarina basaltic andesites (70-120 m) that are younger than 0.25 Ma, and probably Holocene. Lacustrine deposits crown the stratigraphic column of the drill core with ages probably younger than 34 ka. The San Lorenzo Tezonco well is in a graben-like structure that was filled with more than 1900 m of volcanic products, suggesting that volcanism were intense in the Miocene to the Recent, and the south drainage of the Mexico Basin was closed probably in the early Pleistocene.

Landsat-Derived Estimates of Mangrove Extents in the Sierra Leone Coastal Landscape Complex during 1990-2016.

Science.gov (United States)

Mondal, Pinki; Trzaska, Sylwia; de Sherbinin, Alex

2017-12-21

This study provides the first assessment of decadal changes in mangrove extents in Sierra Leone. While significant advances have been made in mangrove mapping using remote sensing, no study has documented long-term changes in mangrove extents in Sierra Leone-one of the most vulnerable countries in West Africa. Such understanding is critical for devising regional management strategies that can support local livelihoods. We utilize multi-date Landsat data and cloud computational techniques to quantify spatiotemporal changes in land cover, with focus on mangrove ecosystems, for 1990-2016 along the coast of Sierra Leone. We specifically focus on four estuaries-Scarcies, Sierra Leone, Yawri Bay, and Sherbro. We relied on the k-means approach for an unsupervised classification, and validated the classified map from 2016 using ground truth data collected from Sentinel-2 and high-resolution images and during field research (accuracy: 95%). Our findings indicate that the Scarcies river estuary witnessed the greatest mangrove loss since 1990 (45%), while the Sierra Leone river estuary experienced mangrove gain over the last 26 years (22%). Overall, the Sierra Leone coast lost 25% of its mangroves between 1990 and 2016, with the lowest coverage in 2000, during the period of civil war (1991-2002). However, natural mangrove dynamics, as supported by field observations, indicate the potential for regeneration and sustainability under carefully constructed management strategies.

78 FR 22620 - Additional Designations, Foreign Narcotics Kingpin Designation Act

Science.gov (United States)

2013-04-16

...''), Col Bella Vista, Casa No. 09, Camino a Rotulo de Coca Cola, San Pedro Sula, Cortes, Honduras; DOB 14...] (Linked To: AUTO PARTES HANDAL S. DE R.L. DE C.V.; Linked To: RANCHO LA HERRADURA; Linked To: SUPERTIENDAS..., La Ceiba, Atlantida, Honduras; Ave Junior, Entre 7 y 6 Calle Sureste, San Pedero Sula, Cortes...

76 FR 45693 - Safety Zone; San Diego POPS Fireworks, San Diego, CA

Science.gov (United States)

2011-08-01

...-AA00 Safety Zone; San Diego POPS Fireworks, San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary... San Diego Bay in support of the San Diego POPS Fireworks. This safety zone is necessary to provide for... of the waterway during scheduled fireworks events. Persons and vessels will be prohibited from...

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 ...

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

In Possession of a Stolen Weapon: From John Gay’s Macheath to Rubén Blades’ Pedro Navaja

Directory of Open Access Journals (Sweden)

Antonio Viselli

2012-05-01

Full Text Available This article analyses the cult salsa song “Pedro Navaja” by Panamanian artist Rubén Blades and the relevance of narrating such a genre peculiar to dancing, an re-writing of “Mack the Knife” – or Die Moritat von Mackie Messer – one which contains, as a sort of mise-en-abyme, elements not only of Kurt Weill’s song, but of both John Gay’s The Beggar’s Opera and Bertolt Brecht’s The Threepenny Opera. This study focuses on the fertile adaptation history of the highwayman Macheath since Gay’s work, on close-readings of “Pedro Navaja” – a narrativized cerebral salsa song – and on the ethics of adapting a character, story or genre. Finally, when the character Pedro Navaja is adapted from Blades’ song by a cineaste and playwright, Blades, furious with what others have done with ‘his’ character, decides to resuscitate his eponymous hero killed off at the end of the original song in order to regain the authority of his creation. From theoretical questions including how to read an adaptation or what constitutes an adaptation, this article focuses on the diachronic recurrences of a specific character-type, on the significance of juxtaposing particular historical junctures and on the violence of adaptation and authorship.

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.

33 CFR 165.754 - Safety Zone: San Juan Harbor, San Juan, PR.

Science.gov (United States)

2010-07-01

... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone: San Juan Harbor, San Juan, PR. 165.754 Section 165.754 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND... Zone: San Juan Harbor, San Juan, PR. (a) Regulated area. A moving safety zone is established in the...

Construcción macrotextual y cancionero amoroso (Un acercamiento analítico a "La voz a ti debida" de Pedro Salinas)

OpenAIRE

Corencia Cruz, Joaquín

2008-01-01

La tesis Construcción macrotextual y cancionero amoroso. Unacercamiento analítico a La voz a ti debida de Pedro Salinas. Fue leídapor Joaquín Corencia Cruz en la Sala de Juntas de la Facultad deFilología de la Universidad de Valencia (España) el 7 de noviembre de2008.El trabajo investigador se desarrolla a lo largo de nuevecapítulos. En el primero se produce una introducción a la tesisrevisando desde la trayectoria vital y profesional de Pedro Salinas acómo el macrotexto poético de La voz se ...

Hillslope Erosion and Water Quality from the Rim Fire, Sierra Nevada, CA

Science.gov (United States)

Kuhn, T. J.; Austin, L. J.; Forrester, H.; DeLong, S. B.; Lever, R.; Roche, J. W.

2014-12-01

The Rim Fire in 2013 burned approximately 1036 km2 in the Sierra Nevada (including 312 km2 within Yosemite National Park), generating considerable public concern regarding potential impacts to the Tuolumne River watershed, in terms of water quality and water supply infrastructure serving the City of San Francisco. Land management responses included a multi-million dollar watershed treatment project on USFS lands near Cherry Creek, with similar actions suggested for areas in the Hetch Hetchy and Lake Eleanor watersheds. In response to the concern that the post-burn landscape will negatively impact water quality, we are investigating hydrologic effects and hillslope erosion in two small burned basins (2.2 and 5.2 km2) within the Tuolumne River basin in Yosemite National Park. Within a month after fire containment, sites were equipped with instrumentation to record stream stage, turbidity, and total suspended sediment. We also installed 21 sediment fences that trap all sediment silt sized and larger on moderate (20%) to steep (50%) hillslopes from 100 m2 plots within moderate and high severity burn areas. Accumulated sediment is collected, weighed, and sub-sampled after each storm event, and, analyzed for dry weight, particle size, gravimetric water content, bulk density, pH, color, carbon and nitrogen content from % fine organics, and % coarse organics. As of July 31, 2014, four discrete storm events had been sampled. Data are used to calculate annual sediment yield, and to investigate organic carbon storage, deposition, and transport. We are also collecting repeat terrestrial laser scans to assess topographic change and identify the hillslope processes that contribute to erosion and deposition at plot- and hillslope-scale. These findings provide analogs for possible changes in adjacent burned areas and to inform management decisions in response to future fires and potential impacts to water quality in areas valued by the park, the City of San Francisco and other

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...

Comparación ambiental, mediante registros sedimentarios, entre las condiciones prehispánicas y actuales de un sistema lacustre Environmental comparison, through sedimentary records, between pre-Hispanic and current conditions of a lacustrine system

Directory of Open Access Journals (Sweden)

MARCO CISTERNAS

2000-03-01

Full Text Available Se comparan, a través de registros sedimentarios, palinológicos y diatomológicos, dos momentos de la historia ambiental del sistema lacustre de San Pedro. El primero, corresponde al periodo prehispánico, representando a las condiciones prístinas o línea base del sistema. El segundo periodo, el más reciente, representa aproximadamente a los últimos diez años de intervención antrópica. Para lograr lo anterior, se recolectaron muestras verticales de sedimento del fondo en los dos lagos del sistema lacustre de San Pedro (Lagunas Grande y Chica. Se realizaron análisis cronológicos (C14, palinológicos y diatomológicos de los estratos superiores e inferiores de la columna sedimentaria. Los resultados indican que el sistema lacustre de San Pedro ha experimentado drásticos cambios desde la llegada de los españoles, evolucionando desde una cobertura vegetacional natural, predominantemente nativa, a una fuerte presión de uso forestal. Del mismo modo, el estado cualitativo del agua presenta una variación en sus características tróficas, reconociéndose una evolución desde aguas oligotróficas a eutróficas, en Laguna Grande, y de oligotrofía a mesotrofía en Laguna Chica. Finalmente, se propone la incorporación del análisis de los registros sedimentarios en los estudios ambientales y planes de manejo de los sistemas lacustres. De esta forma será posible conocer la línea base (condiciones prehispánicas y la respuesta del ecosistema acuático a las influencias antrópicasTwo moments of the environmental history of San Pedro lacustrine system are compared through sedimentary, pollen and diatom records. The first one corresponds to the pre-Hispanic period, representing the pristine conditions or background of the system. The second period, more recently, represents the human disturbance conditions during the late ten years. To achieve the above mentioned, sediment cores were collected from the bottom of two lakes that conform the San

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

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.

DE PAULO LEMINSKI A PEDRO ANTÔNIO GABRIEL: DIÁLOGOS ATEMPORAIS NA LITERATURA BRASILEIRA CONTEMPORÂNEA

Directory of Open Access Journals (Sweden)

Jennifer da Silva Gramiani Celeste (CES/JF

2017-05-01

Full Text Available

O presente artigo objetiva estabelecer diálogo entre poemas da autoria de Paulo Leminski e Pedro Antônio Gabriel. Os estudos relativos à Cibercultura, à Literatura e à Modernidade serão os norteadores deste trabalho. A realização deste estudo é justificada com base na relevância em compreender os diálogos contemplados pela Literatura Brasileira Contemporânea; ademais, a dinâmica que demarca a atual produção poética no Brasil, influenciada pelo advento da internet. É possível afirmar que os autores dialogam entre si, seja via jogos de natureza sonora ou visual, seja via temáticas contempladas. As conversas são atemporais, pois transcendem crenças e perspectivas inerentes a uma dada época.

Palavras-chave: Poesia. Literatura Brasileira Contemporânea. Paulo Leminski. Pedro Antônio Gabriel.

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 ...

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...

Magma mixing in granitic rocks of the central Sierra Nevada, California

Science.gov (United States)

Reid, John B.; Evans, Owen C.; Fates, Dailey G.

1983-12-01

The El Capitan alaskite exposed in the North American Wall, Yosemite National Park, was intruded by two sets of mafic dikes that interacted thermally and chemically with the host alaskite. Comparisons of petrographic and compositional data for these dikes and alaskite with published data for Sierra Nevada plutons lead us to suggest that mafic magmas were important in the generation of the Sierra Nevada batholith. Specifically, we conclude that: (1) intrusion of mafic magmas in the lower crust caused partial melting and generation of alaskite (rhyolitic) magmas; (2) interaction between the mafic and felsic magmas lead to the observed linear variation diagrams for major elements; (3) most mafic inclusions in Sierra Nevada plutons represent chilled pillows of mafic magmas, related by fractional crystallization and granitoid assimilation, that dissolve into their felsic host and contaminate it to intermediate (granodioritic) compositions; (4) vesiculation of hydrous mafic magma upon chilling may allow buoyant mafic inclusions and their disaggregation products to collect beneath a pluton's domed ceiling causing the zoning (mafic margins-to-felsic core) that these plutons exhibit.

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

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...

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.

Pedro Duque suits up for TCDT

Science.gov (United States)

1998-01-01

STS-95 Mission Specialist Pedro Duque of Spain, representing the European Space Agency (ESA) is checked by Danny Wyatt (left), with KSC, and Dave Martin (right), with United Space Alliance, in the white room before entry into Space Shuttle Discovery for a pre-launch countdown exercise. Duque and other crew members are at KSC to participate in the Terminal Countdown Demonstration Test (TCDT) which includes mission familiarization activities, emergency egress training, and a simulated main engine cutoff. The other crew members are Payload Specialist Chiaki Mukai (M.D., Ph.D.), representing the National Space Development Agency of Japan (NASDA), Pilot Steven W. Lindsey, Mission Specialist Scott E. Parazynski, Mission Specialist Stephen K. Robinson, Payload Specialist John H. Glenn Jr., senator from Ohio, and Mission Commander Curtis L. Brown. The STS-95 mission, targeted for liftoff on Oct. 29, includes research payloads such as the Spartan solar-observing deployable spacecraft, the Hubble Space Telescope Orbital Systems Test Platform, the International Extreme Ultraviolet Hitchhiker, as well as the SPACEHAB single module with experiments on space flight and the aging process. Following the TCDT, the crew will be returning to Houston for final flight preparations.

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...

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...

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 ...

Crustal structure of the Central Precordillera of San Juan, Argentina (31°S) using teleseismic receiver functions

Science.gov (United States)

Ammirati, Jean-Baptiste; Alvarado, Patricia; Perarnau, Marcelo; Saez, Mauro; Monsalvo, Guillermo

2013-10-01

The subduction of the Nazca plate under the South American plate around 31°S is characterized by flat slab geometry. The (Chilean) Pampean flat slab of Argentina associated with the subduction of the Juan Fernandez ridge lies in a region of a series of foreland uplifts corresponding to the thin-skinned Precordillera and basement cored Sierras Pampeanas ranges. The SIEMBRA project deployed 40 broadband stations in 2008-2009 in both the Precordillera and the Sierras Pampeanas with the aim to foster the understanding of the entire central Andean flat slab region. One of the SIEMBRA station (DOCA) located on the western flank of Sierra de la Invernada in the Central Precordillera appears particularly appropriate to study the crustal structure and eventually detect discontinuities related to terranes establishment. We thus performed a receiver function analysis using teleseismic data recorded at the DOCA station during the SIEMBRA project and from October 2011 to June 2012 using a broadband UNSJ (National University of San Juan) seismic station with the purpose to obtain crustal images with details of the intracrustal structure consistent with a mechanism that could explains both the observed earthquake depths and the uplift pattern in the Central Precordillera. Our results show that the Moho beneath the Precordillera lies at a depth of about 66 km. The Moho signal appears diminished and behaves irregularly as a function of azimuthal orientations. Although this observation could be the result of an irregular geometry it also correlates with the hypothesis of partial eclogitisation in the lower crust. Two mid-crustal discontinuities have also been revealed. The shallower one could correspond to a décollement level between the Precordilleran strata and the Cuyania basement at 21 km depth. The deeper one which the presence has been matched with a sharp decrease of the crustal seismic activity drove us to the hypothesis of a major change in crustal composition at 36 km

Effect of previous chilling storage on quality loss in frozen (–20 °C sierra (Scomberomorus sierra muscle packed with a low-density polyethylene film containing butylated hydroxytoluene

Directory of Open Access Journals (Sweden)

Herlinda Soto-Valdez

2015-03-01

Full Text Available Rancidity development during frozen storage (–20 °C of sierra fish (Scomberomorus sierra was studied. Fillets were packed in low-density polyethylene films with and without butylated hydroxytoluene added (BHT-LDPE and LDPE respectively. Fillets stored with no package were used as control. Special attention was given to the effect of previous ice storage (0, 3, 6, 9 and 15 days on the quality of the frozen fish. Physical (pH and texture and chemical (peroxide value, PV and thiobarbituric acid index, TBA-i analyses were carried out. Lipid oxidation increased with ice storage time in fish muscle without film packing, being greater than the film packed muscle (with and without antioxidant. An effect of previous ice storage time was observed on the frozen product (in all treatments. However, fish muscle with film packing containing antioxidant showed less lipid deterioration. Under the conditions applied in this study, the plastic films with antioxidant prevented the lipids oxidation during the cold handling of the sierra muscle.

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.

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.

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

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 ...

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...

Comparative age and growth of common snook Centropomus undecimalis (Pisces: Centropomidae from coastal and riverine areas in Southern Mexico

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Martha A. Perera-Garcia

2013-06-01

Full Text Available Common snook Centropomus unidecimalis is an important commercial and fishery species in Southern Mexico, however the high exploitation rates have resulted in a strong reduction of its abundances. Since, the information about its population structure is scarce, the objective of the present research was to determine and compare the age structure in four important fishery sites. For this, age and growth of common snook were determined from specimens collected monthly, from July 2006 to March 2008, from two coastal (Barra Bosque and Barra San Pedro and two riverine (San Pedro and Tres Brazos commercial fishery sites in Tabasco, Mexico. Age was determined using sectioned saggitae otoliths and data analyzed by von Bertalanffy and Levenberg-Marquardt among others. Estimated ages ranged from 2 to 17 years. Monthly patterns of marginal increment formation and the percentage of otoliths with opaque rings on the outer edge demonstrated that a single annulus was formed each year. The von Bertalanffy parameters were calculated for males and females using linear adjustment and the non-linear method of Levenberg-Marquardt. The von Bertalanffy growth equations were FLt=109.21(1-e-0.21(t+0.57 for Barra Bosque, FLt=94.56(1-e-0.27(t+0.48 for Barra San Pedro, FLt=97.15(1-e-0.17(t+1.32 for San Pedro and FLt=83.77(1-e-0.26(t+0.49 for Tres Brazos. According to (Hotelling’s T², p<0.05 test growth was significantly greater for females than for males. Based on the Chen test, von Bertalanffy growth curves were different among the study sites (RSS, p<0.05. Based on the observed differences in growth parameters among sampling sites (coastal and riverine environments future research need to be conducted on migration and population genetics, in order to delineate the stock structure of this population and support management programs.

Variaciones de gravedad en el Valle de Tulum, San Juan: aportes a la caracterización sismotectónica de la región

Directory of Open Access Journals (Sweden)

Francisco Ruiz

2008-12-01

Full Text Available Con el objeto de establecer relaciones espacio-temporales de la evolución del campo gravitatorio debidas a actividad sismotectónica, se estableció una red de control geodésico areal (RED G1. La red está compuesta por puntos fijos bien materializados, abarca un área de 2500 km², con la ciudad de San Juan en su centro. Estos puntos fijos fueron vinculados con mediciones precisas de gravedad en los años 2000 y 2004. Las diferencias gravimétricas 2000-2004 se refirieron a la estación de gravedad del Instituto Geofísico Sismológico (UNSJ. El campo de variaciones relativas de gravedad así obtenido, muestra relaciones consistentes con la actividad sísmica de magnitud mayor que 3 (abundante en este período. Los rasgos más sobresalientes indican: A una alineación de máximos con variaciones de hasta +0.088 mGal en el sudoeste de la Sierra de Pie de Palo, +0.045 mGal en el Co. Barboza y de +0.065 en el Co. Valdivia. B Una zona de máximos (hasta 0.090 mGal en el centro-oeste de la Sa. Chica de Zonda correlacionada con nidos de sismos de magnitud 3 a 3.9. C Una marcada quietud en los puntos fijos ubicados al sur de la Sa. Chica de Zonda. D Ascenso generalizado de todos los puntos ubicados al norte del Río San Juan llegando a 0.080 mGal en la Falla de La Laja (Terremoto del 15-01-1944. Si atribuimos los cambios de g enteramente a cambios topográficos, las variaciones altimétricas estarían en el orden de los 10 cm.A network of areal geodetic control (Red G1 was set up with the purpose of establishing space-time relations in the evolution of the gravity field produced by seismo-tectonic activity. The network is composite for points well materialized in the field, and extends over an about 2500 km² area centered in the San Juan city. These fixed points were linked with precise gravity measurements carried out during years 2000 and 2004. The gravity changes 2000-2004 are evaluated taking as fix the gravity value in the Instituto Geof

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...

Avistamientos recientes de águila real (Aquila chrysaetos en la sierra El Mechudo, Baja California Sur, México Recent sightings of Golden Eagle (Aquila chrysaetos in the Sierra El Mechudo, Baja California Sur, Mexico

Directory of Open Access Journals (Sweden)

Israel Guerrero-Cárdenas

2013-03-01

Full Text Available Se reportan nuevos avistamientos de águila real durante 3 años consecutivos (2007-2010 en 2 localidades de la sierra El Mechudo (El Saucito y las Tarabillas, Baja California Sur. Los avistamientos, se realizaron con cámaras-trampa y por observación directa. En BCS, los registros más recientes son de la sierra de la Laguna en el 2000. Se han detectado al menos 4 individuos diferentes, entre juveniles y adultos. La importancia de estos nuevos avistamientos reside en que por primera vez se registra la presencia del águila real en cuerpos de agua dulce.We report new sightings of Golden Eagle for 3 consecutive years (2007-2010 at 2 localities of the Sierra El Mechudo (El Saucito and Tarabillas, Baja California Sur. These sightings were recorded with camera traps and by direct observation. Most recent records from BCS are for the Sierra de la Laguna in 2000. At least 4 different individuals, both juveniles and adults, have been recorded. The importance of these new sightings is that for the first time we registered Golden Eagles infresh water wetlands.

New Data on the Life of the Peruvian-Bolivian Composer Pedro Ximénez-Abrill Tirado (1784-1856

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José Manuel Izquierdo König

2017-07-01

Full Text Available Since the mid-nineteenth century the name of Pedro Ximénez Abrill Tirado has been known in musicological and historiographical studies. However, his role and relevance as composer has been acknowledged only recently in the study of historical repertoires of South America, with the discovery of scores containing his music in a private collection in Bolivia, which was later acquired by various archives and individuals. In spite of this, biographical accounts on him have kept using the same information for decades, and mythical constructions have increased rapidly during the last decade. This paper presents a new biographical picture of Pedro Ximénez, with a broader understanding of the context surrounding his life and works along with the transition of his life between Peru and Bolivia, on the basis of important new sources gathered by both authors through research in various archives.

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...

El recorrido al Cerro Gordo y el ritual tepehuano de las ofrendas en los cerros de la comunidad de San Bernardino de Milpillas

Directory of Open Access Journals (Sweden)

Chantal CRAMAUSSEL

2014-01-01

Full Text Available El ritual de las ofrendas es una ceremonia propiciatoria de la lluvia que se efectúa al terminar la estación seca en los cerros más altos de la comunidad de San Bernardino de Milpillas Chico, en la Sierra Tepehuana del estado de Durango. A esos rituales distintos de los cató- licos que forman parte del ciclo anual de costumbre concurren las autoridades civiles, los curanderos y miembros del Consejo de ancianos. Es un momento muy importante en el que se refuerza la cohesión de los tepehuanos que tienen un patrón de asentamiento muy disperso, como los demás grupos del norte, pero sus rituales presentan también similitudes con los mesoamericanos.

Evaluating potential overlap between pack stock and Sierra Nevada bighorn sheep (Ovis canadensis sierrae) in Sequoia and Kings Canyon National Parks, California

Science.gov (United States)

Klinger, Robert C.; Few, Alexandra P.; Knox, Kathleen A.; Hatfield, Brian E.; Clark, Jonathan; German, David W.; Stephenson, Thomas R.

2015-01-01

Pack stock (horses, mules, burros, llamas, and goats) are frequently assumed to have negative effects on public lands, but there is a general lack of data to be able to quantify the degree to which this is actually the case. Sequoia and Kings Canyon National Parks have received complaints that pack stock may affect Sierra Nevada bighorn sheep (Ovis canadensis sierrae; SNBS), a federally endangered subspecies that occurs in largely disjunct herds in the Sierra Nevada Range of California. The potential effects are thought to be displacement of SNBS from meadows on their summer range (altered habitat use) or, more indirectly, through changes in SNBS habitat or forage quality. Our goals were to conduct an association analysis to quantify the degree of potential spatial overlap in meadow use between SNBS and pack stock and to compare differences in vegetation community composition, structure, and diversity among meadows with different levels of use by bighorn sheep and pack stock. For the association analysis, we used two approaches: (1) we quantified the proportion of meadows that were within the herd home ranges of bighorn sheep and were potentially open to pack stock, and, (2) we used Monte Carlo simulations and use-availability analyses to compare the proportion of meadows used by bighorn sheep relative to the proportional occurrence or area of meadows available to bighorn sheep that were used by pack stock. To evaluate potential effects of pack stock on meadow plant communities and SNBS forage, we sampled vegetation in 2011 and 2012 at 100 plots to generate data that allowed us to compare:

Conocimiento campesino sobre plagas asociadas al cultivo del chile poblano (Capsicum annuum L.) y evaluación de la toxicidad de insecticidas sobre Chrysoperla carnea (Stephens), en San Matias Tlalancaleca, Puebla, México.

OpenAIRE

Chacón Aguayo, Ana Lilia

2011-01-01

El chile poblano (C. annuum), es un cultivo importante en el estado de Puebla, ya que es una especie de gran tradición en la alimentación regional y nacional, sin embargo, la realidad que enfrenta la producción de chile poblano en el municipio de San Matías Tlalancaleca perteneciente a la región de la Sierra Nevada del estado, se refleja en problemas fitosanitarios como la incidencia y daños causados por diversas plagas de insectos. A pesar de que se han realizado trabajos de investigación so...

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.

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

Paleozoic-involving thrust array in the central Sierras Interiores (South Pyrenean Zone, Central Pyrenees): regional implications

Science.gov (United States)

Rodriguez, L.; Cuevas, J.; Tubía, J. M.

2012-04-01

This work deals with the structural evolution of the Sierras Interiores between the Tena and Aragon valleys. The Sierras Interiores is a WNW-trending mountain range that bounds the South Pyrenean Zone to the north and that is characterized by a thrust-fold system with a strong lithological control that places preferably decollements in Triassic evaporites. In the studied area of the Sierras Interiores Cenomanian limestones cover discordantly the Paleozoic rocks of the Axial Zone because there is a stratigraphic lacuna developed from Triassic to Late Cretaceous times. A simple lithostratigraphy of the study area is made up of Late Cenomanian to Early Campanian limestones with grey colour and massive aspect in landscape (170 m, Lower calcareous section), Campanian to Maastrichtian brown coloured sandstones (400-600 m, Marboré sandstones) and, finally, Paleocene light-coloured massive limestones (130-230 m), that often generate the higher topographic levels of the Sierras Interiores due to their greater resistance to erosion. Above the sedimentary sequence of the Sierras Interiores, the Jaca Basin flysch succession crops out discordantly. Based on a detailed mapping of the studied area of the Sierras Interiores, together with well and structural data of the Jaca Basin (Lanaja, 1987; Rodríguez and Cuevas, 2008) we have constructed a 12 km long NS cross section, approximately parallel to the movement direction deduced for this region (Rodríguez et al., 2011). The main structure is a thrust array made up of at least four Paleozoic-involving thrusts (the deeper thrust system) of similar thickness in a probably piggyback sequence, some of which are blind thrusts that generate fold-propagation-folds in upper levels. The higher thrust of the thrust array crops out duplicating the lower calcareous section all over the Sierras Interiores. The emplacement of the deeper thrust system generated the tightness of previous structures: south directed piggyback duplexes (the upper

Hydrologic response and watershed sensitivity to climate warming in California's Sierra Nevada.

Directory of Open Access Journals (Sweden)

Sarah E Null

Full Text Available This study focuses on the differential hydrologic response of individual watersheds to climate warming within the Sierra Nevada mountain region of California. We describe climate warming models for 15 west-slope Sierra Nevada watersheds in California under unimpaired conditions using WEAP21, a weekly one-dimensional rainfall-runoff model. Incremental climate warming alternatives increase air temperature uniformly by 2 degrees, 4 degrees, and 6 degrees C, but leave other climatic variables unchanged from observed values. Results are analyzed for changes in mean annual flow, peak runoff timing, and duration of low flow conditions to highlight which watersheds are most resilient to climate warming within a region, and how individual watersheds may be affected by changes to runoff quantity and timing. Results are compared with current water resources development and ecosystem services in each watershed to gain insight into how regional climate warming may affect water supply, hydropower generation, and montane ecosystems. Overall, watersheds in the northern Sierra Nevada are most vulnerable to decreased mean annual flow, southern-central watersheds are most susceptible to runoff timing changes, and the central portion of the range is most affected by longer periods with low flow conditions. Modeling results suggest the American and Mokelumne Rivers are most vulnerable to all three metrics, and the Kern River is the most resilient, in part from the high elevations of the watershed. Our research seeks to bridge information gaps between climate change modeling and regional management planning, helping to incorporate climate change into the development of regional adaptation strategies for Sierra Nevada watersheds.

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.

Dos precursores: D. Pedro Fermín de Vargas y D. Antonio Nariño

Directory of Open Access Journals (Sweden)

Roberto Tisnés

1962-02-01

Full Text Available Se cumple en el presente año –el 3 de julio exactamente-el bicentenario del nacimiento del notable Precursor de la Independencia D. Pedro Fermín de Vargas. Como anticipo de la biografía que para esa fecha verá la luz pública, nos permitimos publicar uno de los capítulos de la primera parte.

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.

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

Late Holocene forest dynamics, volcanism, and climate change at Whitewing Mountain and San Joaquin Ridge, Mono County, Sierra Nevada, CA, USA

Science.gov (United States)

Constance I. Millar; John C. King; Robert D. Westfall; Harry A. Alden; Diane L. Delany

2006-01-01

Deadwood tree stems scattered above treeline on tephra-covered slopes of Whitewing Mtn (3051 m) and San Joaquin Ridge (3122 m) show evidence of being killed in an eruption from adjacent Glass Creek Vent, Inyo Craters. Using tree-ring methods, we dated deadwood to AD 815-1350 and infer from death dates that the eruption occurred in late summer AD 1350. Based on wood...

Ephemeral-Stream Channel and Basin-Floor Infiltration and Recharge in the Sierra Vista Subwatershed of the Upper San Pedro Basin, Southeastern Arizona

National Research Council Canada - National Science Library

Coes, A. L; Pool, D. R

2005-01-01

.... Previous investigators have assumed that recharge in the subwatershed occurs only along the mountain fronts by way of stream channel infiltration near the contact between the low permeability rocks...

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...

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...

Sedimentation of Particulate Organic Matter in the Dona Paula Bay, West Coast of India during November to May 1995-97.

Digital Repository Service at National Institute of Oceanography (India)

Bhaskar, P.V.; Cardozo, E.; Giriyan, A.; Garg, A.; Bhosle, N.B.

particle flux study in the Santa Monica San Pedro Basin off Los Angeles: particle flux, primary production and transmissometer study. Continental Shelf Research 7: 307-328. Olesen, M. and Lundsgaard, C. 1996 Seasonal sedimentation of autochthonous...

76 FR 1386 - Safety Zone; Centennial of Naval Aviation Kickoff, San Diego Bay, San Diego, CA

Science.gov (United States)

2011-01-10

...-AA00 Safety Zone; Centennial of Naval Aviation Kickoff, San Diego Bay, San Diego, CA AGENCY: Coast... zone on the navigable waters of San Diego Bay in San Diego, CA in support of the Centennial of Naval... February 12, 2010, the Centennial of Naval Aviation Kickoff will take place in San Diego Bay. In support of...

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

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...

San Marino.

Science.gov (United States)

1985-02-01

San Marino, an independent republic located in north central Italy, in 1983 had a population of 22,206 growing at an annual rate of .9%. The literacy rate is 97% and the infant mortality rate is 9.6/1000. The terrain is mountainous and the climate is moderate. According to local tradition, San Marino was founded by a Christian stonecutter in the 4th century A.D. as a refuge against religious persecution. Its recorded history began in the 9th century, and it has survived assaults on its independence by the papacy, the Malatesta lords of Rimini, Cesare Borgia, Napoleon, and Mussolini. An 1862 treaty with the newly formed Kingdom of Italy has been periodically renewed and amended. The present government is an alliance between the socialists and communists. San Marino has had its own statutes and governmental institutions since the 11th century. Legislative authority at present is vested in a 60-member unicameral parliament. Executive authority is exercised by the 11-member Congress of State, the members of which head the various administrative departments of the goverment. The posts are divided among the parties which form the coalition government. Judicial authority is partly exercised by Italian magistrates in civil and criminal cases. San Marino's policies are tied to Italy's and political organizations and labor unions active in Italy are also active in San Marino. Since World War II, there has been intense rivalry between 2 political coalitions, the Popular Alliance composed of the Christian Democratic Party and the Independent Social Democratic Party, and the Liberty Committee, coalition of the Communist Party and the Socialist Party. San Marino's gross domestic product was $137 million and its per capita income was $6290 in 1980. The principal economic activities are farming and livestock raising, along with some light manufacturing. Foreign transactions are dominated by tourism. The government derives most of its revenue from the sale of postage stamps to

Mineração, turismo e ambiente em Pedro II, Piauí

OpenAIRE

Gomes, Divamélia de Oliveira Bezerra [UNESP

2011-01-01

Pedro II, desde a década de 50 vem sofrendo alteração da paisagem natural em decorrência da exploração de opala e nos últimos cinco anos pelo ecoturismo emergente, não planejado e estruturado. O presente trabalho analisou os impactos sócio-ambientais decorrentes da atividade de garimpo de opala e da ação do turismo em áreas naturais, bem como vem a propor ações efetivas para desenvolvimento destas atividades de forma sustentável no município. Para consecução dos objetivos propostos, a pesquis...

San Francisco District Laboratory (SAN)

Data.gov (United States)

Federal Laboratory Consortium — Program CapabilitiesFood Analysis SAN-DO Laboratory has an expert in elemental analysis who frequently performs field inspections of materials. A recently acquired...

"Palabras de la Ciencia": Pedro Castera and Scientific Writing in Mexico's "Fin de Siècle"

Science.gov (United States)

del Pilar Blanco, María

2014-01-01

This essay explores the career of the understudied writer Pedro Castera (1846-1906), who is regarded as one of the first practitioners of science fiction in Mexico. A man of many talents, Castera is one of the most eccentric and eclectic figures in the intellectual life of fin-de-siècle Mexico City. His career took many turns: While during…

Potential increase in floods in California's Sierra Nevada under future climate projections

Science.gov (United States)

Das, T.; Dettinger, M.D.; Cayan, D.R.; Hidalgo, H.G.

2011-01-01

California's mountainous topography, exposure to occasional heavily moisture-laden storm systems, and varied communities and infrastructures in low lying areas make it highly vulnerable to floods. An important question facing the state-in terms of protecting the public and formulating water management responses to climate change-is "how might future climate changes affect flood characteristics in California?" To help address this, we simulate floods on the western slopes of the Sierra Nevada Mountains, the state's primary catchment, based on downscaled daily precipitation and temperature projections from three General Circulation Models (GCMs). These climate projections are fed into the Variable Infiltration Capacity (VIC) hydrologic model, and the VIC-simulated streamflows and hydrologic conditions, from historical and from projected climate change runs, allow us to evaluate possible changes in annual maximum 3-day flood magnitudes and frequencies of floods. By the end of the 21st Century, all projections yield larger-than-historical floods, for both the Northern Sierra Nevada (NSN) and for the Southern Sierra Nevada (SSN). The increases in flood magnitude are statistically significant (at p models, while under the third scenario, GFDL CM2. 1, frequencies remain constant or decline slightly, owing to an overall drying trend. These increases appear to derive jointly from increases in heavy precipitation amount, storm frequencies, and days with more precipitation falling as rain and less as snow. Increases in antecedent winter soil moisture also play a role in some areas. Thus, a complex, as-yet unpredictable interplay of several different climatic influences threatens to cause increased flood hazards in California's complex western Sierra landscapes. ?? 2011 Springer Science+Business Media B.V.

De reescrituras y obsesiones. La cicatriz y La voz de Mallick (1981, de Pedro Casariego Córdoba

Directory of Open Access Journals (Sweden)

Raúl Díaz Rosales

2012-01-01

Full Text Available En este trabajo se presenta una breve introducción a la recepción de la obra de Pedro Casariego Córdoba, así como a sus coordenadas estéticas, donde se establece su legado literario como una obsesión de ciertos elementos que vertebran su escritura. En el análisis del libro de poemas La voz de Mallick y la obra de teatro La cicatriz (de 1981 ambas, se constatará este hecho, al ser ambas creaciones dos visiones de un mismo tema: la liberación del condenado a través del amor. This paper focuses on the reception of Pedro Casariego Córdoba’s work, including his aesthetic coordinates, where he establishes his literary legacy as well as the obsession about some elements that build his writings. In the analysis of the poem La voz de Mallick and the play La cicatriz (both written in 1981, this fact will be proved, being these two creations visions of the same theme: the convicted’s liberation with the help of love.

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.

O ensino da psiquiatria e o poder disciplinar da enfermagem religiosa: o hospício de Pedro II no segundo reinado

Directory of Open Access Journals (Sweden)

Maria Angélica de Almeida Peres

2011-01-01

Full Text Available El estudio tiene como objetivos: describir las relaciones entre la enseñanza de la psiquiatría y el poder disciplinar de las Hermanas de la Caridad del Hospicio de Pedro II; analizar las circunstancias en que se realizó el concurso que eligió el primer Catedrático de Psiquiatría de la Facultad de Medicina de Rio de Janeiro; discutir las repercusiones para el poder disciplinar ejercido por las Hermanas de la Caridad del Hospicio de Pedro II. Es un estudio de carácter histórico y documental en el que se analizan libros administrativos de la Santa Casa de Misericordia y los artículos del Jornal do Comércio, con base en el referencial foucaultiano. El concurso para Catedrático de Psiquiatría, aunque duramente cuestionado por la prensa, eligió un médico opositor a la administración del Hospicio de Pedro II por la Santa Casa de Misericordia. Tras su ingreso como director del hospicio, ese catedrático comenzó una reforma administrativa, lo que lleva a la progresiva reducción de la actividad religiosa y la consiguiente reducción de los cuidados de enfermería en ese espacio, lo que permite su medicalización.

A morte como elemento cultural mexicano em Pedro Páramo, de Juan Rulfo

Directory of Open Access Journals (Sweden)

Ana Paula Cantarelli

2013-06-01

Full Text Available Pedro Páramo (1955, de Juan Rulfo, desde sua publicação tem sido alvo de inúmeros estudos desenvolvidos por pesquisadores de diferentes áreas do conhecimento (história, sociologia, filosofia, etc.. Neste texto, buscou-se elaborar uma proposta de leitura a partir do reconhecimento da morte, símbolo nacional mexicano, como um elemento constituinte da estrutura narrativa desse romance, com a intenção de ampliar o campo de análises já delineado ao redor dessa obra.

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

Science.gov (United States)

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; Kamara, Idrissa; Wei, Qiang; Liang, Mi-Fang; Wu, Gui-Zhen; Dong, Xiao-Ping

2016-06-23

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. 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 detection since 11 March 2015. Complete management and program documents were created for the SLE-CHN Biosafety Lab, and it was divided into four zones (the green, yellow, brown, and red zones) based on the risk assessment. Different types of safe and appropriate personnel protection equipment (PPE) are used in different zones of the laboratory, and it fully meets the Biosafety Level 3 laboratory standards of the World Health Organization. Good preparedness, comprehensive risk assessment and operation documents, appropriate PPE, effective monitoring and intensive training, together with well-designed and reasonable laboratory sectioning are essential for guaranteeing biosafety.

Espacio urbano, espacio del consumo en las crónicas norteamericanas de Justo Sierra

Directory of Open Access Journals (Sweden)

Cristina Beatriz Fernández

2011-01-01

Full Text Available El objetivo de este trabajo es analizar las crónicas de viaje de Justo Sierra, escritas en ocasión de su visita a los Estados Unidos a finales del siglo XIX, con énfasis en las dedicadas a la ciudad de Nueva York. En ellas, centramos nuestra atención en el registro textual de fenómenos relacionados con la forma en que Sierra percibe la modernidad norteamericana, especialmente significativa en lo que hace a la relación entre economía y sociedad. Por ello, atendemos particularmente la configuración del espacio urbano como un escenario del consumo, y procuramos demostrar cómo la constitución física y simbólica de las ciudades muestra rasgos de parentesco con esos eventos típicos de la época que fueron las ferias y exposiciones, las cuales también son objeto de la prosa de Sierra.

76 FR 9709 - Water Quality Challenges in the San Francisco Bay/Sacramento-San Joaquin Delta Estuary

Science.gov (United States)

2011-02-22

... Water Quality Challenges in the San Francisco Bay/Sacramento-San Joaquin Delta Estuary AGENCY... the San Francisco Bay/ Sacramento-San Joaquin Delta Estuary (Bay Delta Estuary) in California. EPA is... programs to address recent significant declines in multiple aquatic species in the Bay Delta Estuary. EPA...

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 ...

STS-95 Mission Specialist Pedro Duque suits up for launch

Science.gov (United States)

1998-01-01

STS-95 Mission Specialist Pedro Duque of Spain, with the European Space Agency, is helped with his flight suit by suit tech Tommy McDonald in the Operations and Checkout Building. The final fitting takes place prior to the crew walkout and transport to Launch Pad 39B. Targeted for launch at 2 p.m. EST on Oct. 29, the mission is expected to last 8 days, 21 hours and 49 minutes, and return to KSC at 11:49 a.m. EST on Nov. 7. The STS-95 mission includes research payloads such as the Spartan solar-observing deployable spacecraft, the Hubble Space Telescope Orbital Systems Test Platform, the International Extreme Ultraviolet Hitchhiker, as well as the SPACEHAB single module with experiments on space flight and the aging process.

Origen del Palacio de Pedro I en el Alcázar de Sevilla: el mirador hoy llamado de los Reyes Católicos

Directory of Open Access Journals (Sweden)

Fernández Aguilera, Sebastián

2015-12-01

Full Text Available This study originated with the search for the possible initial site of the main door of the Old Chapel, which, following its restoration and study, turned out to be older than the rest of the Mudéjar palace of King Pedro I (Seville, 1365. During this investigation, and based on recent studies carried out as the result of several previous restorations, the author realized that this door was not relocated from another place. It had formed part of the earlier Gothic palace to which the construction of Pedro I’s palace was attached at this juncture, with several rooms from basement to upper balcony predating the Mudéjar building, thereby concluding that it must have been the work of his father, King Alfonso XI.El presente trabajo, se inicia con la búsqueda del emplazamiento que pudo tener la gran puerta de la Antigua Capilla, de la que, tras su restauración y estudio, sabemos que existía con anterioridad a la obra mudéjar del palacio de Pedro I en Sevilla en 1365. En esa búsqueda, y apoyándonos en los distintos estudios que se vienen realizando con motivo de restauraciones recientes, hemos llegado a la conclusión de que no se trata de carpintería reutilizada, sino que es toda la construcción de esa parte del palacio, adosada al anterior palacio gótico, y con distintas estancias desde el sótano hasta el Mirador, la que ya existía con anterioridad al rey Don Pedro, y con toda probabilidad obra de su padre el rey Alfonso XI, como se concluye en este artículo.

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

Arhitektuur, võrgukultuur ja kuidas neist kasu saada = Architecture, networked cultures and how to make the most of them / Pedro Gadanho

Index Scriptorium Estoniae

Gadanho, Pedro

2011-01-01

Arhitekt Pedro Gadanho vaatleb olulist aspekti kõikvõimalike sündmuste puhul - vahetut suhtlemist. Vaatamata internetiajastul virtuaalruumi kolinud inimestevahelisele läbikäimisele on õigete inimestega kohtumine iga sündmuse oluline osa

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...

A zoologia filosófica no Brasil: explorando as modernas correntes do pensamento científico no Collégio de Pedro II em meados do século XIX - The philosophical zoology in Brazil: exploring the modern approaches of the scientific thinking in the d. Pedro sc

Directory of Open Access Journals (Sweden)

Karl M. Lorenz

2011-04-01

Full Text Available Resumo As Ciências Naturais foram ensinadas na escola secundária pública brasileira a partir de 1837 com a fundação do Imperial Collégio de Pedro II no Rio de Janeiro. Em 1841 foi introduzida no currículo a Zoologia Filosófica, uma matéria teórica, complementar aos estudos tradicionais da Zoologia, que permaneceu até ser suprimida em 1855. A Zoologia Filosófica era uma matéria intrínseca ao Colégio de Pedro II, uma vez que não existia nos colégios brasileiros da época outra semelhante, nem mesmo nos liceus franceses. Embora não haja informações sobre os conteúdos de que tratava, tem-se o programa de exames de 1850, em que quarenta pontos são listados. Mediante uma análise dos pontos, foi possível identificar os conteúdos ensinados. A análise demonstra que, em contraste com os conceitos tradicionais da Zoologia Descritiva, a Zoologia Filosófica abordou conceitos, grandes teorias e especulações sobre a origem, as transformações e o crescimento dos animais, que circulavam na Europa, e particularmente na França, na primeira metade do século XIX. No estudo, constata-se que foi uma matéria excepcional por ser a única no Brasil a tratar da Zoologia teórica nos moldes da Naturalfilosofie, prevalecente na Alemanha e explorada na França por Étienne Geoffroy Saint-Hilaire, Étienne Serres e outros cientistas de renome. Palavras-chave: ensino de ciências; história natural; ensino secundário; história das disciplinas; Collégio de Pedro II.   THE PHILOSOPHICAL ZOOLOGY IN BRAZIL: EXPLORING THE MODERN APPROACHES OF THE SCIENTIFIC THINKING IN THE “D. PEDRO” SCHOOL AT THE BEGINNING OF THE XIX CENTURY Abstract The natural sciences were taught in the public secondary schools in Brazil beginning in 1837 with the founding of the Imperial College Pedro II in Rio de Janeiro. In 1841, the course, Philosophical Zoology, was introduced as a theoretical discipline that complimented the standard content taught in the more

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...

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...

33 CFR 165.776 - Security Zone; Coast Guard Base San Juan, San Juan Harbor, Puerto Rico

Science.gov (United States)

2010-07-01

... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Security Zone; Coast Guard Base San Juan, San Juan Harbor, Puerto Rico 165.776 Section 165.776 Navigation and Navigable Waters COAST... Guard District § 165.776 Security Zone; Coast Guard Base San Juan, San Juan Harbor, Puerto Rico (a...

Effects of the earthquake of 11 May 2011 upon the historic family vaults in the San Clemente cemetery, the church of Santa Maria, the church of San Pedro and the Golden Fountain at Lorca in Murcia (SE Spain); Afecciones ocasionadas por el terremoto en el conjunto de panteones historicos del cementerio de San Clemente, iglesia de Santa Maria, iglesia de San Pedro y la Fuente del Oro de Lorca, Murcia

Energy Technology Data Exchange (ETDEWEB)

Gonzalez Ballesteros, J. A.; Gallardo Carrillo, J.; Lopez Aguilera, V.

2012-11-01

This study forms a contribution to the record of deformations caused by the earthquake that occurred on 11 May 2011 in and around the city of Lorca, affecting a wide variety of its historic buildings. Our work has focused on the San Clemente cemetery, the churches of the Barrios Altos (the higher districts) and on the Fuente del Oro (the Golden Fountain). Our aim was to quantify the deformations and the numerous other effects using archaeological and architectural methods and retrieve as much of this information as possible before the works of structural consolidation and cleaning of the debris could begin. At the same time we tried to analyse the impact of the seismic shocks upon other historic buildings in the city. (Author) 9 refs.

Making up for lost snow: lessons from a warming Sierra Nevada

Science.gov (United States)

Bales, R. C.

2017-12-01

Snowpack- and glacier-dependent river basins are home to over 1.2 billion people, one-sixth of the world's current population. These areas face severe challenges in a warmer climate, as declines in snow resources put more pressure on dams and groundwater. Closer to home, the seasonal snowpacks in California's Sierra Nevada provide water storage to both sustain productive forests and support the world's 6th largest economy. Rivers draining the Sierra supply the state's large cities, plus agricultural areas that provide nearly half of the nation's fruits and vegetables. Water storage is central to water security, especially given California's hot dry summers and high interannual variability in precipitation. On average seasonal snowpacks store about half as much water as do dams on Sierra rivers; and both the magnitude and duration of snowpack storage are decreasing. Precipitation amount and snow accumulation across the mountains in any given day, month or year remain uncertain. As historical index-statistical methods for hydrologic forecasts give way to tools based on mass and energy balances distributed across the landscape, opportunities are arising to broadly implement spatial measurements of snowpack storage and the equally important regolith-water storage. Advances in applying satellite and aircraft remote sensing, plus spatially distributed wireless-sensor networks, are filling this need. These same unprecedented data are driving process understanding to improve knowledge of snow-energy-forest interactions, snowmelt estimates, and hydrologic forecasts for hydropower, water supply, and flood control. Estimating the value of snowpacks and how they are changing provides a baseline for evaluating investments in restoration of headwater forests that will affect snowmelt runoff, and in providing replacement storage as snow declines. With California facing billions of dollars of green and grey infrastructure improvements, which must be compatible with the state

The post-Laramide clastic deposits of the Sierra de Guanajuato: Compositional implications on the tectono-sedimentary and paleographic evolution

Energy Technology Data Exchange (ETDEWEB)

Miranda-Aviles, R.; Puy-Alquiza, M.J.; OmaNa, L.; Loza-Aguirre, I.

2016-07-01

This article presents the results of the study on sedimentation, sedimentary environments, tectono-sedimentary and paleogeographic evolution of post-Laramide clastic deposits and pre-volcanism of the Sierra Madre Occidental in the Sierra de Guanajuato, central Mexico. The Eocene Duarte Conglomerate and Guanajuato Conglomerate were deposited in the middle and distal parts of alluvial fans. The studied rocks are composed of limestone clasts, granite, andesite, metasediments, diorite, and pyroxenite, indicating the erosion of uplifted blocks of the basal complex of the Sierra de Guanajuato (Arperos basin). The petrographic and compositional analysis of limestone shows a textural variation from basin limestones and shallow platform limestones. The shallow platform limestone contain bivalves, brachiopods, gastropods, echinoderms and benthic foraminifera from the Berriasian-Valanginian. The shallow-water limestone corresponds to the boundary of the Arperos basin whose original outcrops currently not outcrop in the Sierra de Guanajuato. (Author)

Assessing Hydrologic Impacts of Future Land Cover Change Scenarios in the South Platte River Basin (CO, WY, & NE)

Science.gov (United States)

Long‐term land‐use and land cover change and their associated impacts pose critical challenges to sustaining vital hydrological ecosystem services for future generations. In this study, a methodology was developed on the San Pedro River Basin to characterize hydrologi...

Slicing up the San Francisco Bay Area: Block kinematics and fault slip rates from GPS-derived surface velocities

Science.gov (United States)

d'Alessio, M. A.; Johanson, I.A.; Burgmann, R.; Schmidt, D.A.; Murray, M.H.

2005-01-01

Observations of surface deformation allow us to determine the kinematics of faults in the San Francisco Bay Area. We present the Bay Area velocity unification (BA??VU??, "bay view"), a compilation of over 200 horizontal surface velocities computed from campaign-style and continuous Global Positioning System (GPS) observations from 1993 to 2003. We interpret this interseismic velocity field using a three-dimensional block model to determine the relative contributions of block motion, elastic strain accumulation, and shallow aseismic creep. The total relative motion between the Pacific plate and the rigid Sierra Nevada/Great Valley (SNGV) microplate is 37.9 ?? 0.6 mm yr-1 directed toward N30.4??W ?? 0.8?? at San Francisco (??2??). Fault slip rates from our preferred model are typically within the error bounds of geologic estimates but provide a better fit to geodetic data (notable right-lateral slip rates in mm yr-1: San Gregorio fault, 2.4 ?? 1.0; West Napa fault, 4.0 ?? 3.0; zone of faulting along the eastern margin of the Coast Range, 5.4 ?? 1.0; and Mount Diablo thrust, 3.9 ?? 1.0 of reverse slip and 4.0 ?? 0.2 of right-lateral strike slip). Slip on the northern Calaveras is partitioned between both the West Napa and Concord/ Green Valley fault systems. The total convergence across the Bay Area is negligible. Poles of rotation for Bay Area blocks progress systematically from the North America-Pacific to North America-SNGV poles. The resulting present-day relative motion cannot explain the strike of most Bay Area faults, but fault strike does loosely correlate with inferred plate motions at the time each fault initiated. Copyright 2005 by the American Geophysical Union.

Strontium isotopes reveal distant sources of architectural timber in Chaco Canyon, New Mexico.

Science.gov (United States)

English, N B; Betancourt, J L; Dean, J S; Quade, J

2001-10-09

Between A.D. 900 and 1150, more than 200,000 conifer trees were used to build the prehistoric great houses of Chaco Canyon, New Mexico, in what is now a treeless landscape. More than one-fifth of these timbers were spruce (Picea) or fir (Abies) that were hand-carried from isolated mountaintops 75-100 km away. Because strontium from local dust, water, and underlying bedrock is incorporated by trees, specific logging sites can be identified by comparing (87)Sr/(86)Sr ratios in construction beams from different ruins and building periods to ratios in living trees from the surrounding mountains. (87)Sr/(86)Sr ratios show that the beams came from both the Chuska and San Mateo (Mount Taylor) mountains, but not from the San Pedro Mountains, which are equally close. Incorporation of logs from two sources in the same room, great house, and year suggest stockpiling and intercommunity collaboration at Chaco Canyon. The use of trees from both the Chuska and San Mateo mountains, but not from the San Pedro Mountains, as early as A.D. 974 suggests that selection of timber sources was driven more by regional socioeconomic ties than by a simple model of resource depletion with distance and time.

Enhanced Preliminary Assessment Report: Presidio of San Francisco Military Reservation, San Francisco, California

Science.gov (United States)

1989-11-01

CAD981415656 Filmore Steiner Bay San Francisco 24 PG&E Gas Plant SanFran 502-IG CAD981415714 Bay North Point Buchanan Laguna 25 PG&E Gas Plant SanFran 502-1H...76-ioV /5,JO /0.7 /,230 PSF Water PSF, Main U.N. Lagunda Honda Analvte Plant Clearwell Reservoir Plaza Reservoi- Chlordane inetab. ə.2 ə.2 (1.2 ə.2

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

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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.

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.

Datos para una biografía del jurista Pedro Murillo Velarde y Bravo

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Luis Díaz de la Guardia y López

2001-01-01

Full Text Available En el presente artículo se pretende aportar una serie de coordenadas para fijar la vida y el pensamiento de Pedro Murillo Velarde y Bravo (Laujar 1696-Puerto de Santa María 1753. Hidalgo de familia de caballeros, sobrino de un Obispo de Pamplona, rompe en principio con el entorno familiar de búsqueda de ascenso social para dedicarse a la misión en Filipinas, llegando a ser procurador provincial de la Compañía en Filipinas ante la Corte de Madrid y Roma. Gran jurista, tiistoriador, geógrafo, poeta, político y orador. Por medio de documentos y obras del autor no sólo se desentraña la vida del jesuíta sino también su pensamiento frente a las Filipinas, la política o la religión.This article intends to contribute a series of coordinates to establish the life and thinking of Pedro Murillo Velarde y Bravo (Laujuar 1696-Puerto de Santa María 1753. Noble from a family of gentlemen and nephew of a Bishop of Pamplona, firstly breaks away from the family environment that seeks social promotion to dedicate himself to the mission in the Philippines, becoming the Society of Jesus'provincial representative in the Philippines before the Court of Madrid and Rome. Great jurist, historian, geographer, poet, politician and orator. Through the documents and works of the autor, not only is the life of the Jesuit unravelled but also his thinking on the Philippines politics and religión.

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 ...

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…

A case for historic joint rupture of the San Andreas and San Jacinto faults.

Science.gov (United States)

Lozos, Julian C

2016-03-01

The San Andreas fault is considered to be the primary plate boundary fault in southern California and the most likely fault to produce a major earthquake. I use dynamic rupture modeling to show that the San Jacinto fault is capable of rupturing along with the San Andreas in a single earthquake, and interpret these results along with existing paleoseismic data and historic damage reports to suggest that this has likely occurred in the historic past. In particular, I find that paleoseismic data and historic observations for the ~M7.5 earthquake of 8 December 1812 are best explained by a rupture that begins on the San Jacinto fault and propagates onto the San Andreas fault. This precedent carries the implications that similar joint ruptures are possible in the future and that the San Jacinto fault plays a more significant role in seismic hazard in southern California than previously considered. My work also shows how physics-based modeling can be used for interpreting paleoseismic data sets and understanding prehistoric fault behavior.

A case for historic joint rupture of the San Andreas and San Jacinto faults

Science.gov (United States)

Lozos, Julian C.

2016-01-01

The San Andreas fault is considered to be the primary plate boundary fault in southern California and the most likely fault to produce a major earthquake. I use dynamic rupture modeling to show that the San Jacinto fault is capable of rupturing along with the San Andreas in a single earthquake, and interpret these results along with existing paleoseismic data and historic damage reports to suggest that this has likely occurred in the historic past. In particular, I find that paleoseismic data and historic observations for the ~M7.5 earthquake of 8 December 1812 are best explained by a rupture that begins on the San Jacinto fault and propagates onto the San Andreas fault. This precedent carries the implications that similar joint ruptures are possible in the future and that the San Jacinto fault plays a more significant role in seismic hazard in southern California than previously considered. My work also shows how physics-based modeling can be used for interpreting paleoseismic data sets and understanding prehistoric fault behavior. PMID:27034977

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

[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

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...

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

[Taxonomy of some microteids (Squamata) from Venezuela, I: variation and geographic distribution of Euspondylus acutirostris and description of a new Euspondylus from northeast Venezuela].

Science.gov (United States)

Mijares-Urrutia, A; Celsa Señaris, J; Arends, A

2000-01-01

Only two species of the microteiid lizard genus Euspondylus (E. acutirostris and E. phelpsorum) had been reported from Venezuela. New records of the poorly known gymnophthalmid lizard Euspondylus acutirostris are reported extending its known range along the Coastal Range and Sierra de Aroa (north-central Venezuela) and Sierra de San Luis (northwestern Venezuela), all records occurring at the cloud forest above 1000 m. Seven body measurements were included and morphological variation is described based on at least 17 new specimens. Sexual dimorphism is determined in, at least, eight characteristics of size and squamation. Specimens were found in epiphytic bromeliads and the ground. The populations from Sierra de Aroa and Sierra de San Luis (only one specimen known from each locality), differ from those of the Coastal Range (supposedly the nominal population) in some morphological and coloration features, suggesting that the former two could represent different taxonomical entities. A new species of Euspondylus is described based on a female (taken within a bromeliad) from Cerro El Humo, Sucre, northeastern Venezuela. It differs from congeners mainly by having keeled scales on the limbs and a very acute snout.

Pedro Poveda en clave historiográfica: un debate cultural y pedagógico del siglo XX

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Pego Puigbó, Armando

2007-12-01

Full Text Available In this paper a view on the historiographic reception of the life and works of the priest and pedagogue Pedro Poveda (1874-1936 is tried to offer. The characteristic features of his catholic pedagogical proposal are showed in the context of a secularized age. Poveda looked forward to making the Christian message present into the educational structures of the State through a dialogue between faith and science. This program for modernization implies the hermeneutic tools of a period marked by the activities of the ILE.En este artículo se procura ofrecer una panorámica de la recepción historiográfica de la vida y la obra del sacerdote y pedagogo Pedro Poveda (1874-1936. Se presentan así los rasgos de una singular propuesta pedagógica católica en una época secularizada. Poveda quiso hacer presente el mensaje cristiano en las estructuras educativas estatales animando el diálogo entre fe y ciencia. Este programa de modernización comprende también las claves hermenéuticas de una época marcada por las actividades de la ILE.

Subsídios para a gênese da imprensa musical brasileira e para a história do Hino da Independência, de Dom Pedro I Subsidies for the Brazilian musical press genesis and the history of the Independence Hymn, by Dom Pedro I

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Lino de Almeida Cardoso

2012-06-01

Full Text Available Este artigo tem por objetivos rever, mediante análise bibliográfica e de fontes primárias, a história de um de nossos símbolos musicais pátrios, o Hino da Independência, de Dom Pedro I, bem como trazer novos subsídios para o estudo da gênese da imprensa musical brasileira. Tem, igualmente, por escopo divulgar peculiaridades de uma antiga e pouco conhecida partitura desse hino, já não mais presentes em modernas edições de tal composição.This article aims at reviewing, through bibliographical and primary sources analysis, the history of one of Brazil´s national anthems, the Independence Hymn, by Dom Pedro I, as well as bringing new subsidies for the study of the Brazilian musical press origins. It also intends to reveal some peculiarities of an early and lesser known piano and voice score of the Hymn, not present in today's editions of this composition.

76 FR 22809 - Safety Zone; Bay Ferry II Maritime Security Exercise; San Francisco Bay, San Francisco, CA

Science.gov (United States)

2011-04-25

... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket No. USCG-2011-0196] RIN 1625-AA00 Safety Zone; Bay Ferry II Maritime Security Exercise; San Francisco Bay, San Francisco, CA AGENCY... Security Exercise; San Francisco Bay, San Francisco, CA. (a) Location. The limits of this safety zone...

Solidarity According to the Thought of Fr. Pedro Arrupe and Its Application to Jesuit Higher Education Today

Science.gov (United States)

Menkhaus, James

2013-01-01

Fr. Pedro Arrupe, S.J. was elected the 28th superior general of the Society of Jesus in 1965 and served in that role until 1983. As superior general, Arrupe sought to shape the Jesuits in the spirit of the vision of Vatican II, as well as the original charism of the founder of the Jesuit, St. Ignatius. The questions this dissertation seeks to…

Diagnosis of Knowledge Management in the Brisas Sierra Mar hotel

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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.

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

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.

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.

Macroeconomic costs of the unmet burden of surgical disease in Sierra Leone: a retrospective economic analysis.

Science.gov (United States)

Grimes, Caris E; Quaife, Matthew; Kamara, Thaim B; Lavy, Christopher B D; Leather, Andy J M; Bolkan, Håkon A

2018-03-14

The Lancet Commission on Global Surgery estimated that low/middle-income countries will lose an estimated cumulative loss of US$12.3 trillion from gross domestic product (GDP) due to the unmet burden of surgical disease. However, no country-specific data currently exist. We aimed to estimate the costs to the Sierra Leone economy from death and disability which may have been averted by surgical care. We used estimates of total, met and unmet need from two main sources-a cluster randomised, cross-sectional, countrywide survey and a retrospective, nationwide study on surgery in Sierra Leone. We calculated estimated disability-adjusted life years from morbidity and mortality for the estimated unmet burden and modelled the likely economic impact using three different methods-gross national income per capita, lifetime earnings foregone and value of a statistical life. In 2012, estimated, discounted lifetime losses to the Sierra Leone economy from the unmet burden of surgical disease was between US$1.1 and US$3.8 billion, depending on the economic method used. These lifetime losses equate to between 23% and 100% of the annual GDP for Sierra Leone. 80% of economic losses were due to mortality. The incremental losses averted by scale up of surgical provision to the Lancet Commission target of 80% were calculated to be between US$360 million and US$2.9 billion. There is a large economic loss from the unmet need for surgical care in Sierra Leone. There is an immediate need for massive investment to counteract ongoing economic losses. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

The San Bernabe power substation; La subestacion San Bernabe

Energy Technology Data Exchange (ETDEWEB)

Chavez Sanudo, Andres D. [Luz y Fuerza del Centro, Mexico, D. F. (Mexico)

1997-12-31

The first planning studies that gave rise to the San Bernabe substation go back to year 1985. The main circumstance that supports this decision is the gradual restriction for electric power generation that has been suffering the Miguel Aleman Hydro System, until its complete disappearance, to give priority to the potable water supply through the Cutzamala pumping system, that feeds in an important way Mexico City and the State of Mexico. In this document the author describes the construction project of the San Bernabe Substation; mention is made of the technological experiences obtained during the construction and its geographical location is shown, as well as the one line diagram of the same [Espanol] Los primeros estudios de planeacion que dieron origen a la subestacion San Bernabe se remontan al ano de 1985. La circunstancia principal que soporta esta decision es la restriccion paulatina para generar energia que ha venido experimentando el Sistema Hidroelectrico Miguel Aleman, hasta su desaparicion total, para dar prioridad al suministro de agua potable por medio del sistema de bombeo Cutzamala, que alimenta en forma importante a la Ciudad de Mexico y al Estado de Mexico. En este documento el autor describe el proyecto de construccion de la subestacion San Bernabe; se mencionan las experiencias tecnologicas obtenidas durante su construccion y se ilustra su ubicacion geografica, asi como un diagrama unifilar de la misma

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.

Demography of the California spotted owl in the Sierra National Forest and Sequoia/Kings Canyon National Parks

Science.gov (United States)

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

2002-01-01

Nine years (1990–1998) of demographic data on California spotted owls (Strix occidentalis occidentalis) in two study areas on the western slopes of the Sierra Nevada—one in the Sierra National Forest (SNF), the other in Sequoia/Kings Canyon National Parks (SNP)—are summarized. Numbers of territorial owls fluctuated from 85 to 50 in SNF and 80 to 58...

Preliminary assessment of the moth (Lepidoptera: Heterocera) fauna of Rincon de Guadalupe, Sierra de Bacadehuachi, Sonora, Mexico

Science.gov (United States)

John D. Palting

2013-01-01

The Sierra de Bacadéhuachi is a poorly sampled extension of the Sierra Madre Occidental (SMO) located in east-central Sonora near the town of Bacadéhuachi. Sampling of moths using mercury vapor and ultraviolet lights occurred in summer and fall 2011, and spring 2012 at Rincón de Guadalupe, located in pine-oak forest at 1680 m elevation. Approximately 400 taxa of moths...

Diversidad de mamíferos de la Reserva Natural Sierra Nanchititla, México Diversity of mammals in the Natural Reserve Sierra Nanchititla, Mexico

Directory of Open Access Journals (Sweden)

Octavio Monroy-Vilchis

2011-03-01

Full Text Available La Reserva Natural Sierra Nanchititla (RNSN, por su extensión, es la segunda área natural protegida del Estado de México; sin embargo, se desconoce gran parte de su biodiversidad. El objetivo de este trabajo fue estimar su diversidad mastofaunística. Se utilizó el trampeo directo para la colecta de mamíferos pequeños y trampas-cámara para el estudio de los mamíferos medianos y grandes. Se calculó la diversidad a partir del índice de Margalef, y se evaluaron la dominancia y la equidad mediante los índices de Simpson y Shannon-Wiener, respectivamente. Se registraron 53 especies de mamíferos; 3 de ellas son el primer registro estatal, 10 son endémicas de México y 4 las considera en alguna categoría de vulnerabilidad el gobierno mexicano. En la zona habitan 5 de las 6 especies de felinos de México. La composición mastofaunística de la RNSN fue comparada con la de la sierra Purépecha, Michoacán, con la que comparte el 38% de las especies. De acuerdo con el índice de Jaccard, la similitud entre ambas es baja. Considerando los resultados, la importancia de la RNSN con respecto a su diversidad mastofaunística es evidente, así como la necesidad de delinear estrategias para su conservación.The Sierra Nanchititla Natural Reserve (SNNR is the second largest natural protected area in the State of Mexico, however its biodiversity is largely unknown. The aim of this research was to estimate its mammalian diversity. Direct trapping was used to capture small mammals and camera-trapping for the study of medium and large mammals. Diversity was calculated from Margalef's index, dominance and equity were evaluated through Simpson's and Shannon-Wiener indexes, respectively. Fifty three species were registered, 3 of them are the first record for the State of Mexico, 10 are endemic to Mexico and 4 are considered in some category of vulnerability by the Mexican government. The area is inhabited by 5 of the 6 Mexican felid species. The