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Sample records for quebrada grande formation

Integrated U-Pb zircon and palynological/palaeofloristic age determinations of a Bashkirian palaeofjord fill, Quebrada Grande (Western Argentina)

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Valdez Buso, Victoria; di Pasquo, Mercedes; Milana, Juan Pablo; Kneller, Benjamin; Fallgatter, Claus; Junior, Farid Chemale; Gomes Paim, Paulo Sérgio

2017-01-01

This work presents a new age framework for the main Bashkirian glacio-eustatic transgression in Argentina, including the first absolute age for the Jejenes Formation, San Juan Province, based on radiometric dating of a crystal-rich tuff, supported by palynological and palaeofloristic studies, and presented within a revised palaeogeographic setting. The Jejenes Formation represents the glacial to postglacial fill of the Quebrada Grande palaeofjord carved in the Eastern Precordillera. The succession has been subdivided into five stages, the youngest of which suggests a previously unrecognised glacial event for this locality. Six productive levels for palynology were found within proglacial strata, and in the base and top of the succeeding interglacial stage. Palynoassemblages are characterized by poorly preserved trilete spores and monosaccate pollen grains along with a large amount of terrestrial phytoclasts. Main species indicating the Raistrickia densa-Convolutispora muriornata SubZone (DMa SZ) are Vallatisporites ciliaris, Cristatisporites rollerii, C. stellatus, C. chacoparanensis, C. inconstans and monosaccates such as Circumplicatipollis plicatus. This DMa SZ is estimated as Serpukhovian/Bashkirian and characterizes the glacial-related Guandacol Formation and equivalents units of the western Paganzo Basin. A tuffaceous level in the proglacial unit, bearing platyspermic seeds, plant remains and palynomorphs, yielded first-cycle volcanic zircons that were analysed by SHRIMP. An absolute age of 321.3 ± 5.3 Ma confirms a Bashkirian age for the main postglacial transgression in the Paganzo Basin, and offers a novel calibration for the palynoassemblages of DMa SZ that occurs elsewhere in Western Argentina.
Mass movements in the Rio Grande Valley (Quebrada de Humahuaca, Northwestern Argentina: a methodological approach to reduce the risk

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G. Marcato

2009-10-01

Full Text Available Slope processes such as slides and debris flows, are among the main events that induce effects on the Rio Grande sediment transport capacity. The slides mainly affect the slope of the Rio Grande river basin while debris and mud flows phenomena take place in the tributary valleys. In the past decades several mass movements occurred causing victims and great damages to roads and villages and therefore hazard assessment and risk mitigation is of paramount importance for a correct development of the area. This is also an urgent need since the Quebrada de Humahuaca was recently included in the UNESCO World Cultural Heritage. The growing tourism business may lead to an uncontrolled urbanization of the valley with the consequent enlargement of threatened areas.

In this framework mitigation measures have to take into account not only technical aspects related to the physical behaviour of the moving masses but also environmental and sociological factors that could influence the effectiveness of the countermeasures.

Mitigation of landslide effects is indeed rather complex because of the large extension of the territory and the particular geological and geomorphological setting. Moreover the necessity to maintain the natural condition of the area as prescribed by UNESCO, make this task even more difficult.

Nowadays no in-depth study of the entire area exists, therefore an integrated and multidisciplinary investigation plan is going to be set up including geological and geomorphological investigations as well as archaeological and historical surveys. The better understanding of geomorphological evolution processes of the Quebrada de Humahuaca will bridge the gap between the necessity of preservation and the request of safety keeping of the recommendation by UNESCO.
Mass movements in the Rio Grande Valley (Quebrada de Humahuaca, Northwestern Argentina): a methodological approach to reduce the risk

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Marcato, G.; Pasuto, A.; Rivelli, F. R.

2009-10-01

Slope processes such as slides and debris flows, are among the main events that induce effects on the Rio Grande sediment transport capacity. The slides mainly affect the slope of the Rio Grande river basin while debris and mud flows phenomena take place in the tributary valleys. In the past decades several mass movements occurred causing victims and great damages to roads and villages and therefore hazard assessment and risk mitigation is of paramount importance for a correct development of the area. This is also an urgent need since the Quebrada de Humahuaca was recently included in the UNESCO World Cultural Heritage. The growing tourism business may lead to an uncontrolled urbanization of the valley with the consequent enlargement of threatened areas. In this framework mitigation measures have to take into account not only technical aspects related to the physical behaviour of the moving masses but also environmental and sociological factors that could influence the effectiveness of the countermeasures. Mitigation of landslide effects is indeed rather complex because of the large extension of the territory and the particular geological and geomorphological setting. Moreover the necessity to maintain the natural condition of the area as prescribed by UNESCO, make this task even more difficult. Nowadays no in-depth study of the entire area exists, therefore an integrated and multidisciplinary investigation plan is going to be set up including geological and geomorphological investigations as well as archaeological and historical surveys. The better understanding of geomorphological evolution processes of the Quebrada de Humahuaca will bridge the gap between the necessity of preservation and the request of safety keeping of the recommendation by UNESCO.
A New Basal Sauropodomorph (Dinosauria: Saurischia) from Quebrada del Barro Formation (Marayes-El Carrizal Basin), Northwestern Argentina

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Apaldetti, Cecilia; Martinez, Ricardo N.; Alcober, Oscar A.; Pol, Diego

2011-01-01

Background Argentinean basal sauropodomorphs are known by several specimens from different basins; Ischigualasto, El Tranquilo, and Mogna. The Argentinean record is diverse and includes some of the most primitive known sauropodomorphs such as Panphagia and Chromogisaurus, as well as more derived forms, including several massospondylids. Until now, the Massospondylidae were the group of basal sauropodomorphs most widely spread around Pangea with a record in almost all continents, mostly from the southern hemisphere, including the only record from Antarctica. Methodology/Principal Finding We describe here a new basal sauropodomorph, Leyesaurus marayensis gen. et sp. nov., from the Quebrada del Barro Formation, an Upper Triassic-Lower Jurassic unit that crops out in northwestern Argentina. The new taxon is represented by a partial articulated skeleton that includes the skull, vertebral column, scapular and pelvic girdles, and hindlimb. Leyesaurus is diagnosed by a set of unique features, such as a sharply acute angle (50 degrees) formed by the ascending process of the maxilla and the alveolar margin, a straight ascending process of the maxilla with a longitudinal ridge on its lateral surface, noticeably bulging labial side of the maxillary teeth, greatly elongated cervical vertebrae, and proximal articular surface of metatarsal III that is shelf-like and medially deflected. Phylogenetic analysis recovers Leyesaurus as a basal sauropodomorph, sister taxon of Adeopapposaurus within the Massospondylidae. Moreover, the results suggest that massospondylids achieved a higher diversity than previously thought. Conclusions/Significance Our phylogenetic results differ with respect to previous analyses by rejecting the massospondylid affinities of some taxa from the northern hemisphere (e.g., Seitaad, Sarahsaurus). As a result, the new taxon Leyesaurus, coupled with other recent discoveries, suggests that the diversity of massospondylids in the southern hemisphere was higher
Gorgona, Baudó y Darién (Chocó Biogeográfico, Colombia: ecorregiones modelo para los estudios ecológicos de comunidades de quebradas costeras

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Juan F. Blanco

2014-02-01

Full Text Available A pesar de la escasez de estudios sobre la geología, hidrología y biota de las quebradas costeras ubicadas en el Chocó Biogeográfico, se hipotetiza que éstas se ajustan a la tipología observada en las islas oceánicas volcánicas del Caribe y el Pacífico, las cuales no cumplen con las predicciones del Concepto del Río Continuo. Estas quebradas son cortas (<10¹km y muy pendientes debido a su origen tectónico, y presentan lechos dominados por bloques y cantos rodados. El régimen de caudal es torrencial en la vertiente Pacífico, pero estacionalmente seco en la vertiente Caribe. Los doseles cerrados aportan grandes cantidades de hojarasca a las quebradas que desembocan al mar con bajo orden. Las especies diádromas, con afinidades centroamericanas y antillanas, dominan los ensamblajes y posiblemente cumplen papeles ecológicos equivalentes a los establecidos en otras regiones. Particularmente, las quebradas costeras de esta provincia presentan varias especies de peces dulceacuícolas primarios, algunas endémicas, y carecen de gasterópodos. Los procesos geomorfológicos e hidrológicos de las cabeceras influyen sobre la dinámica ecosistémica de estas quebradas. Se proponen cinco hipótesis sobre la estructura y composición comunitaria. Se advierte que el PNNG es un modelo útil para la ecología lótica costera, pero que tiene particularidades.
Changes through territorial windows. Quebrada de Humahuaca [Jujuy, Argentina

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Constanza Inés Tommei

2013-07-01

Full Text Available The paper works on the redraw, construction and analysis of new maps and interpretations in some territorials windows, in various scales, for few urban centers of the Quebrada de Humahuaca (Jujuy, Argentina as an instrument of knowledge. In this sense, this research is looking to understand the morphological processes of transformation in recent decades, in relation to the economic crisis in Argentina at the beginning of the XXI century, the declaration of the Quebrada de Humahuaca as a World Heritage Site (UNESCO, 2003 and national tourism promotion, among other events that have changed the local’s logics. For this, study the changes and continuities in the territory and the types of urban development –adding new blocks, annexation of new neighborhoods and subdivisions in the urban discontinuous or gradual densification of urban, rural and rururban, among others– knowing the recent history of the Quebrada.
Debris flood hazard documentation and mitigation on the Tilcara alluvial fan (Quebrada de Humahuaca, Jujuy province, North-West Argentina

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G. Marcato

2012-06-01

Full Text Available For some decades, mass wasting processes such as landslides and debris floods have been threatening villages and transportation routes in the Rio Grande Valley, named Quebrada de Humauhuaca. One of the most significant examples is the urban area of Tilcara, built on a large alluvial fan. In recent years, debris flood phenomena have been triggered in the tributary valley of the Huasamayo Stream and reached the alluvial fan on a decadal basis.

In view of proper development of the area, hazard and risk assessment together with risk mitigation strategies are of paramount importance. The need is urgent also because the Quebrada de Humahuaca was recently included in the UNESCO World Cultural Heritage. Therefore, the growing tourism industry may lead to uncontrolled exploitation and urbanization of the valley, with a consequent increase of the vulnerability of the elements exposed to risk. In this context, structural and non structural mitigation measures not only have to be based on the understanding of natural processes, but also have to consider environmental and sociological factors that could hinder the effectiveness of the countermeasure works.

The hydrogeological processes are described with reference to present-day hazard and risk conditions. Considering the socio-economic context, some possible interventions are outlined, which encompass budget constraints and local practices. One viable solution would be to build a protecting dam upstream of the fan apex and an artificial channel, in order to divert the floodwaters in a gully that would then convey water and sediments into the Rio Grande, some kilometers downstream of Tilcara. The proposed remedial measures should employ easily available and relatively cheap technologies and local workers, incorporating low environmental and visual impacts issues, in order to ensure both the future conservation of the site and its safe exploitation for inhabitants and tourists.
Debris flood hazard documentation and mitigation on the Tilcara alluvial fan (Quebrada de Humahuaca, Jujuy province, North-West Argentina)

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Marcato, G.; Bossi, G.; Rivelli, F.; Borgatti, L.

2012-06-01

For some decades, mass wasting processes such as landslides and debris floods have been threatening villages and transportation routes in the Rio Grande Valley, named Quebrada de Humauhuaca. One of the most significant examples is the urban area of Tilcara, built on a large alluvial fan. In recent years, debris flood phenomena have been triggered in the tributary valley of the Huasamayo Stream and reached the alluvial fan on a decadal basis. In view of proper development of the area, hazard and risk assessment together with risk mitigation strategies are of paramount importance. The need is urgent also because the Quebrada de Humahuaca was recently included in the UNESCO World Cultural Heritage. Therefore, the growing tourism industry may lead to uncontrolled exploitation and urbanization of the valley, with a consequent increase of the vulnerability of the elements exposed to risk. In this context, structural and non structural mitigation measures not only have to be based on the understanding of natural processes, but also have to consider environmental and sociological factors that could hinder the effectiveness of the countermeasure works. The hydrogeological processes are described with reference to present-day hazard and risk conditions. Considering the socio-economic context, some possible interventions are outlined, which encompass budget constraints and local practices. One viable solution would be to build a protecting dam upstream of the fan apex and an artificial channel, in order to divert the floodwaters in a gully that would then convey water and sediments into the Rio Grande, some kilometers downstream of Tilcara. The proposed remedial measures should employ easily available and relatively cheap technologies and local workers, incorporating low environmental and visual impacts issues, in order to ensure both the future conservation of the site and its safe exploitation for inhabitants and tourists.
HIDROGEOLOGIA E HIDROGEOQUIMICA DE LA CUENCA DE LA QUEBRADA PAIPOTE, REGION DE ATACAMA

OpenAIRE

LORCA UGALDE, MARIA ELIANA DEL PILAR

2011-01-01

Hipótesis de Trabajo Las aguas de la cuenca de la quebrada Paipote tienen un origen meteórico y es posible que existan aportes de flujo subterráneo desde la cuenca del Salar de Maricunga. Objetivo General Generar un modelo hidrogeológico conceptual sobre la base del comportamiento hidráulico de las rocas y sedimentos, la calidad química de las aguas y a el balance hídrico de la cuenca de la quebrada Paipote. Objetivos Específicos Los objetivos específicos de este estudio son...
Geological setting and paleomagnetism of the Eocene red beds of Laguna Brava Formation (Quebrada Santo Domingo, northwestern Argentina)

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Vizán, H.; Geuna, S.; Melchor, R.; Bellosi, E. S.; Lagorio, S. L.; Vásquez, C.; Japas, M. S.; Ré, G.; Do Campo, M.

2013-01-01

The red bed succession cropping out in the Quebrada Santo Domingo in northwestern Argentina had been for long considered as Upper Triassic-Lower Jurassic in age based on weak radiometric and paleontological evidence. Preliminary paleomagnetic data confirmed the age and opened questions about the nature of fossil footprints with avian features discovered in the section. Recently the stratigraphic scheme was reviewed with the identification of previously unrecognized discontinuities, and a radiometric dating obtained in a tuff, indicated an Eocene age for the Laguna Brava Formation and the fossil bird footprints, much younger than the previously assigned. We present a detailed paleomagnetic study interpreted within a regional tectonic and stratigraphic framework, looking for an explanation for the misinterpretation of the preliminary paleomagnetic data. The characteristic remanent magnetizations pass a tilt test and a reversal test. The main magnetic carrier is interpreted to be low Ti titanomagnetites and to a lesser extent hematite. The characteristic remanent magnetization would be essentially detrital. The obtained paleomagnetic pole (PP) for the Laguna Brava Formation has the following geographic coordinates and statistical parameters: N = 29, Lon. = 184.5° E, Lat. = 75.0° S, A95 = 5.6° and K = 23.7. When this PP is compared with another one with similar age obtained in an undeformed area, a declination anomaly is recognized. This anomaly can be interpreted as Laguna Brava Formation belonging to a structural block that rotated about 16° clockwise along a vertical axis after about 34 Ma. This block rotation is consistent with the regional tectonic framework, and would have caused the fortuitous coincidence of the PP with Early Jurassic poles. According to the interpreted magnetostratigraphic correlation, the Laguna Brava Formation would have been deposited during the Late Eocene with a mean sedimentation rate of about 1.4 cm per thousand years, probably in
VARIACIÓN MORFOLÓGICA CRANEOFACIAL EN POBLACIONES HUMANAS DE LA QUEBRADA DE HUMAHUACA (JUJUY, ARGENTINA / Morphological variation of human populations on Quebrada de Humahuaca (Jujuy, Argentina

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Lumila Paula Menendez

2014-11-01

Full Text Available El propósito del presente trabajo fue analizar la variación morfológica craneofacial en poblaciones humanas que habitaron la Quebrada de Humahuaca durante el Holoceno tardío. Se estudiaron los cambios en forma y tamaño del esqueleto facial y base craneana, y se evaluó la distribución de la variación morfológica craneofacial en el espacio geográfico. Para esto, se seleccionaron 114 cráneos de individuos adultos de ambos sexos que no presentasen modificaciones culturales o las presentasen en un grado muy leve, procedentes de seis sitios del sector medio de la Quebrada. Se relevaron 41 puntos anatómicos en 3D con un brazo mecánico Microscribe G2X. Para evaluar la variación morfológica se realizó un ANOVA, se calcularon componentes principales y variables canónicas; mientras que la asociación entre morfología y variación espacial fue evaluada a través de un análisis de Procrustes. Los resultados indican que la variación craneofacial difiere según se considere el esqueleto facial ó la base. Dado que los mayores cambios se registraron en la región facial, la variación morfológica podría ser explicada como producto de la plasticidad fenotípica. Asimismo, no se encontró relación entre la variación morfológica y la distribución geográfica de las muestras. Palabras clave: Variación craneofacial, modificaciones culturales del cráneo, Quebrada de Humahuaca, Holoceno tardío. Abstract The aim of this paper was to analyze the craniofacial morphological variation in human samples showing no cultural modifications of the skull, belonging to populations that lived in the Quebrada de Humahuaca during the late Holocene. Shape and size alterations of the facial skeleton and skull base were studied, and the spatial distribution of morphological variables was evaluated. For this purpose, 114 skulls of adult men and women with slight or absent cultural modifications, from six archaeological sites in the middle section of the
CALIDAD DEL AGUA DE LAS QUEBRADAS LA CRISTALINA Y LA RISARALDA, SAN LUIS, ANTIOQUIA

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María Cecilia Arango

2008-07-01

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

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BECKMAN, JE; CEPA, J; KNAPEN, JH

1991-01-01

We show examples of a new technique we have devised to compare star formation efficiencies in the arms and discs of spirals. First results show striking evidence of the presence and influence of density wave systems of star formation in grand design galaxies.
Archosauriform remains from the Late Triassic of San Luis province, Argentina, Quebrada del Barro Formation, Marayes-El Carrizal Basin

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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
Estabilidad y rupturas dinámica en el Holoceno de la costa surperuana: el valle de La Quebrada de los burros (departamento de Tacna

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1999-01-01

Full Text Available STABILITÉ ET RUPTURES DYNAMIQUES DE LHOLOCÈNE DE LA CÔTE SUD-PÉRUVIENNE : LA VALLÉE DE LA QUEBRADA DE LOS BURROS (DÉPARTEMENT DE TACNA. Lexamen et la datation des dépôts sédimentaires conservés le long de la Quebrada de los Burros (département de Tacna, Pérou, précisent la connaissance des variations climatiques et dynamiques de la période 8500-3200 BP. Deux épisodes à laves torrentielles, violents et certainement brefs, encadrent une longue période nettement plus calme durant laquelle se sont déposés des sédiments fins, parfois organiques, contemporains de la présence dinstallations humaines. El estudio y la datación de los sedimentos depositados a lo largo de la Quebrada de los Burros (departamento de Tacna, Perú, permiten un buen conocimiento de las variaciones climáticas y dinámicas del periodo 8500-3200 BP. Dos episodios con lavas torrenciales, violentos y seguramente breves, encajan en un largo periodo nítidamente más tranquilo, donde se depositan sedimentos finos, a veces orgánicos, contemporáneos de la presencia de instalaciones humanas. HOLOCENIC STABILITY AND BREAKS IN THE SOUTHERN PERUVIAN COAST: THE QUEBRADA DE LOS BURROS VALLEY (DEPARTMENT OF TACNA. Radiocarbon measurements of organic sedimentary deposits from the Quebrada de los Burros (Department of Tacna, Peru permit the reconstruction of climate dynamics during the mid-Holocene (3200-8500 years BP.Two short debris flow events marks the beginning and the end of period of fine grain sedimentation processes. This period is contemporaneous with the presence of human settlements in the Quebrada.
Pescadores-recolectores arcaicos del extremo sur peruano. Excavaciones en La Quebrada de los burros (Tacna, Perú. Primeros resultados 1995-1997

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1999-01-01

Full Text Available PÊCHEURS-COLLECTEURS ARCHAÏQUES DE LEXTRÊME SUD PÉRUVIEN. LES FOUILLES DE LA QUEBRADA DE LOS BURROS (TACNA, PEROU. PREMIERS RESULTATS, 1995-1997. Au début de l´Archaïque, des groupes humains vivant des ressources marines et, en moindre mesure, de chasse terrestre, sinstallent régulièrement sur la côte sud du Pérou. Dans la Quebrada de los Burros, les datations 14C situent ces occupations entre 9800 et 3200 BP, durant une période climatique calme et relativement humide la formation, dans la vallée, entre 120 et 200 m daltitude, de lagunes deau douce ou de marécages constitue alors un facteur très favorable à une implantation humaine (voir Usselmann et al., ce volume. Les niveaux doccupation exploités sur de larges surfaces ont livré des foyers, un abondant matériel lithique taillé, des accumulations de coquilles (Concholepas concholepas, Mesodesma donacium, Fissurella sp., Choromytilus chorus etc. et de nombreux restes de poissons très diversifiés, impliquant diverses techniques halieutiques. Sont également attestés quelques restes de mammifères terrestres et doiseaux. Diverses analyses en cours sur les coquilles détermineront sil sagissait dinstallations saisonnières ou permanentes. Al inicio del Arcaico, grupos humanos que viven de los recursos del medio marítimo y, en escala menor, de la caza terrestre (camélidos, aves, están instalados en la costa sur del Perú. En la Quebrada de los Burros, fechados 14C sitúan estas ocupaciones entre 9800 y 3200 BP, durante un período climático tranquilo y relativamente húmedo en el fondo del valle, entre 120 y 200 msnm, la formación de lagunas de agua dulce o de pantanos constituye entonces un elemento muy favorable para una implantación humana (véase Usselmann et al., este volumen. Los niveles de ocupación excavados en un área extensa contenían fogones, un abundante material lítico tallado, acumulaciones de conchas marinas (Concholepas concholepas
Monitoreo de la reforestación en las quebradas en el Norte de Quito

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Anita Argüello

2012-12-01

Full Text Available El Distrito Metropolitano de Quito (DMQ comprende 61.563 has., las cuales albergan diversasespecies de flora y fauna. Los procesos de acelerada urbanización han dado lugar alestablecimiento de viviendas e invasiones que han presionado a los bosques que existíanespecialmente en las laderas del Pichincha y en las quebradas de la parte norte del distrito. ElMunicipio del Distrito Metropolitano de Quito (MDMQ en sus Políticas de Patrimonio Natural,contempla la integración, conectividad, mantenimiento, recuperación, y rehabilitación deespacios naturales priorizados para seguridad ambiental del Distrito, cuya aplicación tienecomo objetivo específico el disminuir la afectación antrópica progresiva a ecosistemas yespacios naturales de conservación del Distrito. Con estos antecedentes se realiza unacontratación para la reforestación de once quebradas en la Administración Zonal La Delicia, lamisma que se realiza en los meses de abril – junio del presente año (2012 en un total de 43has. con el compromiso de siembra de 37.152 plantas. Para realizar el seguimiento a esteproceso se plantea un monitoreo inicial para conocer el estado de la reforestación y el impactocausado en las quebradas seleccionadas. Mediante recorridos y mapeo de sitio, se contabilizanlas plantas sembradas y supervivientes en cada una de las quebradas y se constata elcumplimiento de solo el 5,05% de la reforestación planteada.Abstract:The Metropolitan District of Quito covers 61.563 has., containing many species of flora andfauna. Accelerated urbanization processes have led to illegal housing and human invasions,putting pressure on existing forests, especially on the slopes of Pichincha and the ravines of thenorthern part of the District. The Metropolitan District of Quito, in its Natural Heritage Policy,prioritizes the integration, connectivity, maintenance, recovery and rehabilitation of naturalareas, to support the District environmental security. Focus is put on
CARACTERIZACIÓN Y PROCEDENCIA DE MATERIAS PRIMAS PARA LA PRODUCCIÓN DE ALFARERÍA PREHISPÁNICA EN LA QUEBRADA DE HUMAHUACA (PROVINCIA DE JUJUY, REPÚBLICA ARGENTINA: FRX, ICP Y PETROGRAFÍA DE PASTAS (Characterization and Provenance of Raw Materials for the Production of Prehispanic Pottery in Quebrada de Humahuaca (Jujuy Province, Argentina: XRF, ICP and Ceramic Petrography

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Nicolás E. Larcher

2016-03-01

Full Text Available Se presenta un avance en la investigación arqueométrica de la alfarería prehispánica de la Quebrada de Humahuaca, territorio ubicado en el extremo noroeste de Argentina. Se analizaron 72 muestras de cerámicas y arcillas por FRX e ICP en tres laboratorios distintos. La integración de los datos y su procesamiento estadístico permitió identificar 4 grupos con características químicas definidas. La petrografía de pastas aportó información extra que ayudó a corroborar la congruencia de los agrupamientos obtenidos. Los resultados permitieron relacionar arcillas con cerámicas, diferenciar químicamente las arcillas y cerámicas de dos sectores de la Quebrada de Humahuaca estudiados e identificar posibles evidencias de interacción. ENGLISH: This article presents a new archaeometric investigation of prehispanic pottery from Quebrada de Humahuaca, a valley in the northwesternmost region of Argentina. We assayed 72 samples from pottery and clays using X-RF and ICP in three different laboratories. Data integration and statistical processing allowed us to identify 4 groups with defined chemical signatures. Ceramic petrology provided additional information that helped us to corroborate the coherence of the clustering. The results enabled us to correlate clays with pottery, to establish chemical differences between the clays and pottery of two areas of Quebrada de Humahuaca that have been investigated archaeologically, and to identify possible evidence of social interaction.
Inventario de fuentes hídricas superficiales en la microcuenca de la quebrada Toromocho

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Autoridad Nacional del Agua. Autoridad Administrativa del Agua VI Marañón

2013-01-01

Determina en forma cualitativa y cuantitativa las fuentes de agua superficial que comprenden los cursos de agua, manantiales, bofedales, almacenamientos (lagunas y represas) y otras fuentes naturales de agua superficial, en la microcuenca de la quebrada Toromocho. Cabe indicar que este estudio ha sido elaborado en el marco de la actividad "Inventario de recursos hídricos en las cabeceras de cuencas de los ríos Chirimayo, Chugurmayo, Jadibamba, Ñun Ñun (Toromocho) y Chailhuagón" realizada por ...
Creation of the Quebrada Arriba Community and Academic Partnership: An Effective Coalition for Addressing Health Disparities in Older Puerto Ricans.

Science.gov (United States)

Orellano-Colón, Elsa M; González-Laboy, Yolanda; De Jesús-Rosario, Amarelis

2017-06-01

The objective of this project was to develop a community-academic coalition partnership to conduct community-based participatory research (CBPR) to address health disparities in older adults with chronic conditions living in the Quebrada Arriba community. We used the 'Developing and Sustaining CPPR Partnerships: A Skill-Building Curriculum', to create the Quebrada Arriba Community-Academic Partnership (QACAP). We assessed the meetings effectiveness and the CBPR experiences of the coalition members in the community-academic partnership. The stepwise process resulted in: the development of The Coalition for the Health and Wellbeing of Older People of Quebrada Arriba; the partnership's mission and vision; the operating procedures; the formulation of the research question, and; the action plan for obtaining funding resources. The mean levels of satisfaction for each of the items of the Meeting Effectiveness Evaluation tool were 100%. The mean agreement rating scores on variables related to having a positive experience with the coalition, members' representativeness of community interest, respectful contacts between members, the coalition's vision and mission, the participation of the members in establishing the prioritized community problem, and sharing of resources between the members was 100%. The steps used to build the QACAP provided an effective structure to create the coalition and captured the results of coalition activities. Partners' time to build trust and developing a sufficient understanding of local issues, high interest of the community members, flexibility of the partners, capitalization on the partners' strengths, and the shared decision building process were key contributors of this coalition's success.

Gestion de l'environnement urbain et risques 'naturels'. La problématique des Quebradas à Quito (Equateur

Directory of Open Access Journals (Sweden)

1996-01-01

Full Text Available Les nombreuses quebradas, ravins à écoulement sporadique qui traversent le site de Quito, ont été systématiquement remblayées lors de lurbanisation, pour servir notamment de zones de décharge plus ou moins contrôlée pour les déchets solides. À partir dune cartographie diachronique, lhistorique de ce remblaiement du réseau hydrographique est décrit, et les risques de nature morphoclimatique induits par ces profondes transformations, étudiés par ailleurs, sont brièvement évoqués. Ces zones spécifiques dun site urbain de montagne relèvent dun statut juridique de protection propre au réseau hydrographique en ville, lequel est profondément modifié dans la pratique après remblaiement, voire simplement oublié. Tout se passe comme si le remblaiement et lurbanisation du réseau hydrographique faisaient lobjet dun large consensus social, pour gagner de lespace, donner une solution intra-urbaine à lévacuation des déchets, et éradiquer des zones socialement incontrôlées. Les représentations sociales qui induisent une politique non explicite de gestion du site, sont analysées et discutées, au moment où les gestionnaires de la ville sinterrogent quant au bien-fondé de la poursuite du processus, alors que ce dernier se poursuit activement pour cacher la forte pollution du rio Machangara, principal émissaire du bassin. MANEJO DEL MEDIO AMBIENTE Y RIESGOS NATURALES. LA PROBLEMÁTICA DE LAS QUEBRADAS EN QUITO (ECUADOR. Las numerosas quebradas que atraviesan la ciudad de Quito fueron constantemente rellenadas durante el proceso de urbanización, sirviendo de basurero controlado o no. Se describe la historia del relleno de la red hidrográfica mediante su cartografía en el tiempo, y los riesgos de tipo morfoclimático producidos por esas transformaciones, que fueron investigados anteriormente, son resumidos. Las zonas de quebradas, específicas de un sitio urbano montañoso, tienen un estatuto jur
Declaraciones patrimoniales, turismo y conocimientos locales: Posibilidades de los estudios del folklore para el caso de las ferias en la quebrada de Humahuaca (Jujuy-Argentina Patrimony Statements, Tourism and Local Knowledge: Folklore Studies Posibilities in Quebrada de Humahuaca Fairs Case (Jujuy - Argentina

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Liliana Bergesio

2010-12-01

Full Text Available La Quebrada de Humahuaca se encuentra en la porción central de la provincia de Jujuy (al noroeste de la República Argentina y su poblamiento ronda los 11.000 años de antigüedad. Esta región fue declarada en el año 2003 por la Organización de las Naciones Unidas para la Educación, la Ciencia y la Cultura (UNESCO como "Patrimonio Cultural y Natural de la Humanidad". A partir de esa fecha se incrementó el desarrollo de circuitos turísticos de aventura y culturales. Esta declaración le dio un nuevo impulso a la Quebrada de Humahuaca en el mercado nacional e internacional del turismo. Y el auge de este último en la zona generó que cada pueblo buscara sus propias alternativas para atraer visitantes. Entre las estrategias más comunes está la realización de ferias y fiestas que buscan destacar características locales particulares. En este trabajo proponemos analizar el caso de la localidad de Coctaca (Departamento de Humahuaca y un evento que allí se realiza, en el mes de febrero, el cual incluye la Feria "Los Sabores de la Historia", el "Encuentro de Mujeres Andinas" y la "Serenata a los Andenes de Cultivo". El objetivo del trabajo es plantear las posibilidades que aportan los estudios del folklore para articular en el análisis temas como lo local y global; lo cultural y económico; los productores con sus productos y el turismo con sus demandas y expectativas.Quebrada de Humahuaca is set in the central portion of the Jujuy Province (Northwest of Argentinian Republic and it has been inhabited approximately by 11.000 years. In 2003 this region was declared "Cultural and Natural Patrimony of Mandkind" by The United Nations Educational, Scientific and Cultural Organization (UNESCO. From that date the cultural and adventure tourism circuits development increased. This statement gave new impetus to Quebrada de Humahuaca in the national and international tourism market. And the rise of the latter in the area generated each little town to
Los Humedales de la Quebrada Estero en San Ramón, Costa Rica: importancia y estado actual.

OpenAIRE

Rodríguez-Arias, Cindy Elena; Silva Benavides, Ana Margarita

2017-01-01

Los humedales de la microcuenca alta de la Quebrada Estero, en San Ramón, Costa Rica, son considerados una prioridad de conservación por su representatividad y ubicación que los hace únicos en su tipo. Por eso se planteó el objetivo de conocer su importancia y estado actual para que esta información sirva de base para su recuperación y conservación. Se llevó a cabo la identificación de los servicios ecosistémicos y de las amenazas e impactos que tienen las actividades humanas en ellos mediant...
Evaluación del contenido de mercurio en suelos y lechos de quebradas en la zona minera de Miraflores, Quinchía, Colombia

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Juan Carlos Camargo García

2015-04-01

Full Text Available En la vereda Miraflores, municipio de Quinchía, Risaralda, donde se ha realizado minería aurífera de forma artesanal durante más de tres décadas, se evaluó el contenido de mercurio (Hg en suelos y lechos de quebradas. Para el efecto se realizó un muestreo sistemático considerando montajes de minería activa, inactiva y áreas sin intervenir. Igualmente se hicieron observaciones en las partes altas, medias y bajas en lechos de quebradas naturales y drenajes formados artificialmente por el desvío de cauces. Los promedios de los valores de Hg (7.1 mg/kg fueron más altos en aquellos lugares aledaños a los montajes y cuando la precipitación aumentó. Aunque en Colombia existe poca información y normatividad relacionada con la contaminación de suelos, los valores de Hg encontrados superan los niveles permisibles establecidos por países europeos. La degradación de suelos se presenta asociada con la contaminación y los residuos de roca dispuestos, hasta el punto de formar zonas eriales totalmente degradadas.
O setor hoteleiro na praia de Canoa Quebrada/CE: processo de expansão urbana e turística

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Felipe de Souza Siqueira

2017-06-01

Full Text Available Este artigo discute a expansão da atividade turística na praia de Canoa Quebrada - Ceará, buscando entender suas implicações sobre o desenvolvimento do setor hoteleiro a partir das iniciativas pioneiras na década de 1970 até sua ampliação nos dias atuais. Seu foco principal é o setor hoteleiro, sua expansão e as transformações decorrentes do crescimento urbano e dos fluxos turísticos, abarcando as origens e as principais características desse setor, bem como a sua relação com a evolução da localidade. A operacionalização da pesquisa impôs a definição de um referencial teórico apropriado ao entendimento do processo de expansão da cidade e dos fluxos turísticos, de modo a propiciar a apreensão da totalidade dos elementos naturais e humanos definidores da realidade investigada. A análise dos processos locais relativos à expansão urbana e turística exigiu a sua articulação ao contexto regional e nacional, bem como a consulta à obras capazes de oferecer elementos acerca da realidade objeto da investigação, elucidando aspectos relacionados às origens e a evolução do setor hoteleiro, decorrentes de transformações sócio espaciais ocorridas em Canoa Quebrada.
Impacto de la conquista inca en la metalurgia de Los Amarillos (Quebrada de Humahuaca, Jujuy

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Carlos I. Angiorama

2011-01-01

Full Text Available En este trabajo analizamos el impacto de la conquista inca en la producción y circulación de objetos metálicos en el asentamiento conocido como Los Amarillos, uno de los más complejos de los localizados en la Quebrada de Humahuaca (Jujuy. Luego comparamos los resultados de nuestras investigaciones con los obtenidos por arqueometalurgos en otros lugares del país, demostrando que las repercusiones de la conquista incaica no han sido las mismas en todos los centros metalúrgicos de la región. Por el contrario, el Imperio reorganizó la producción y la circulación de objetos metálicos aplicando estrategias diferentes en los diversos casos estudiados.
Analysis of the dynamic of underground water in Agua Verde, Quebrada de Taltal, region of Antofagasta, Chile

International Nuclear Information System (INIS)

Rojas, Luis; Lillo, Adrian; Salazar, Carlos; Aguirre, Evelyn

2003-01-01

The extreme aridity and geological situation in northern. Chile requires an exhaustive investigation on water resources for supporting rational usage. The Direccion General de Aguas and Comision Chilena de Energia Nuclear have performed studies in arid zones in northern Chile using isotopic and hydrochemical tools. In Quebrada de Taltal's basin, located in one of the must arid arid zones of Chile (Segunda Region de Antofagasta), was studies groundwater dynamics and recharge process from a geochemical approach in terms of water quality, temperature and isotopic composition ( 2 H, 18 O, 3 H, 14 C). The recharge generated above 3000 m a.s.t has a slow dynamics and involve little flow (author)
The age of the Tunas formation in the Sauce Grande basin-Ventana foldbelt (Argentina): Implications for the Permian evolution of the southwestern margin of Gondwana

Science.gov (United States)

López-Gamundí, Oscar; Fildani, Andrea; Weislogel, Amy; Rossello, Eduardo

2013-08-01

New SHRIMP radiogenic isotope dating on zircons in tuffs (280.8 ± 1.9 Ma) confirms the Early Permian (Artinskian) age of the uppermost section of the Tunas Formation. Tuff-rich levels in the Tunas Formation are exposed in the Ventana foldbelt of central Argentina; they are part of a deltaic to fluvial section corresponding to the late overfilled stage of the Late Paleozoic Sauce Grande foreland basin. Recent SHRIMP dating of zircons from the basal Choiyoi volcanics exposed in western Argentina yielded an age of 281.4 ± 2.5 Ma (Rocha-Campos et al., 2011). The new data for the Tunas tuffs suggest that the volcanism present in the Sauce Grande basin can be considered as the distal equivalent of the earliest episodes of the Choiyoi volcanism of western Argentina. From the palaeoclimatic viewpoint the new Tunas SHRIMP age confirms that by early Artinskian glacial conditions ceased in the Sauce Grande basin and, probably, in adajacent basins in western Gondwana.
Índices de calidad del agua en la microcuenca de la quebrada Victoria, Guanacaste, Costa Rica (2007-2008)

OpenAIRE

Zhen-Wu, Bi Yun

2010-01-01

Se evaluó, durante el año hidrológico 2007-2008, la calidad del agua de la quebrada Victoria, Costa Rica, mediante la aplicación de los índices de calidad del agua del Reglamento costarricense para la evaluación y clasificación de la calidad de cuerpos de agua superficiales (IHCA-CR) y el de la Fundación Nacional de Sanidad de los Estados Unidos (ICA-U.S.NSF), para establecer una línea base para los programas de seguimiento de su calidad y de los efectos del desarrollo geotérmico. La red de m...
CARACTERIZACIÓN DE LA COMUNIDAD DE MACROINVERTEBRADOS DE LA QUEBRADA PALOBLANCO DE LA CUENCA DEL RÍO OTÚN (RISARALDA, COLOMBIA)

OpenAIRE

ELEONORA BERNAL; DUBERNEY GARCÍA; MIGUEL A. NOVOA; ATTICUS PINZÓN

2006-01-01

Se realizó un estudio de las comunidades de macroinvertebrados presentes en la quebrada Paloblanco, ubicada en la cuenca del río Otún (Risaralda, Colombia). Los puntos de muestreo seleccionados corresponden a la cabecera y la zona cercana a la desembocadura en el río Otún, ambos con características geomorfológicas de corrientes de primer orden. En cada punto se colectaron los macroinvertebrados de las unidades funcionales hojarasca, epiliton, musgo y grava, junto con una muestra de deriva y f...
Quebrada La Popala: un análisis de calidad del agua desde algunas variables fisicoquímicas, microbiológicas y los macroinvertebrados acuáticos

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Milán Valoyes Wandy Yohanna

2011-11-01

Full Text Available La quebrada La Popala es la fuente que abastece de agua a los habitantes del corregimiento de Bolombolo en Venecia, Antioquia, Colombia. En noviembre 14 y 28 de 2009, se ubicaron cuatro estaciones de muestreo, donde se aplicaron y analizaron variables fi sicoquímicas, indicadores biológicos, variables microbiológicas, macroinvertebrados acuáticos y el índice biótico BMWP. Las variables fi sicoquímicas, los macroinvertebrados acuáticos y el índice BMWP indican mejores condiciones ambientales en la estación 2, ubicada a unos 150 m del nacimiento de la quebrada (estación 1, mientras que la estación 4, establecida cerca de la desembocadura al río Cauca, exhibe un deterioro del agua. Las estaciones 3 y 4 presentaron niveles altos de coliformes fecales, con un número mayor en la 4. No obstante, los resultados de las muestras tomadas de la red de distribución de agua potable del corregimiento de Bolombolo indican que el agua proveniente del acueducto presenta condiciones aptas para el consumo humano.
Lunar and terrestrial planet formation in the Grand Tack scenario

Science.gov (United States)

Jacobson, S. A.; Morbidelli, A.

2014-01-01

We present conclusions from a large number of N-body simulations of the giant impact phase of terrestrial planet formation. We focus on new results obtained from the recently proposed Grand Tack model, which couples the gas-driven migration of giant planets to the accretion of the terrestrial planets. The giant impact phase follows the oligarchic growth phase, which builds a bi-modal mass distribution within the disc of embryos and planetesimals. By varying the ratio of the total mass in the embryo population to the total mass in the planetesimal population and the mass of the individual embryos, we explore how different disc conditions control the final planets. The total mass ratio of embryos to planetesimals controls the timing of the last giant (Moon-forming) impact and its violence. The initial embryo mass sets the size of the lunar impactor and the growth rate of Mars. After comparing our simulated outcomes with the actual orbits of the terrestrial planets (angular momentum deficit, mass concentration) and taking into account independent geochemical constraints on the mass accreted by the Earth after the Moon-forming event and on the time scale for the growth of Mars, we conclude that the protoplanetary disc at the beginning of the giant impact phase must have had most of its mass in Mars-sized embryos and only a small fraction of the total disc mass in the planetesimal population. From this, we infer that the Moon-forming event occurred between approximately 60 and approximately 130 Myr after the formation of the first solids and was caused most likely by an object with a mass similar to that of Mars. PMID:25114304
Caracterización de la comunidad de macroinvertebrados de la Quebrada Paloblanco de la Cuenca del Río Otún (Risaralda, Colombia)

OpenAIRE

Eleonora Bernal Pinilla; Duberney García García; Miguel Adriano Novoa Bravo; Atticus Pinzón Rodríguez

2006-01-01

Se realizó un estudio de las comunidades de macroinvertebrados presentes en la quebrada Paloblanco, ubicada en la cuenca del río Otún (Risaralda, Colombia). Los puntos de muestreo seleccionados corresponden a la cabecera y la zona cercana a la desembocadura en el río Otún, ambos con características geomorfológicas de corrientes de primer orden. En cada punto se colectaron los macroinvertebrados de las unidades funcionales hojarasca, epiliton, musgo y grava, junto con una muestra de deriva y f...
Grand Tour: immaginario, territorio e culture digitali

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Emiliano Ilardi

2016-12-01

Full Text Available Il Grand Tour può essere recuperato come asset narrativo utile per un intervento strategico di re-branding del viaggio in Italia? Il contributo analizza il contesto e le condizioni per una progettazione di questo livello nell’ambiente culturale dell’epoca digitale. Considerando gli archetipi moderni della mediazione dei luoghi come una grande riserva di senso, da riattivare sia nelle pratiche basate sui format seriali e transmediali che valorizzano i territori nella produzione creativa, sia nella costruzione di infrastrutture digitali e transluoghi per la valorizzazione degli attrattori culturali.
ESTUDIOS DE ISÓTOPOS ESTABLES EN HUERTAS FAMILIARES ACTUALES DE LA QUEBRADA DE HUMAHUACA (JUJUY, ARGENTINA. SU POTENCIAL APORTE A LOS ESTUDIOS PALEODIETARIOS DEL NOROESTE ARGENTINO / Stable isotope studies on current home gardens of the Quebrada de ...

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Violeta A. Killian Galván

2015-12-01

Full Text Available Presentamos una propuesta metodológica para la generación de marcos de referencia en los estudios paleodietarios, mediante el análisis de la composición isotópica del carbono y el nitrógeno (?13C y ?15N en arqueología. En particular, nos centraremos en cómo influyen algunas prácticas de cultivo en los valores isotópicos de las plantas procedentes de huertas familiares (siendo las especies escogidas Zea mays, Solanum tuberosum, Oxalis tuberosa, Ullucus tuberosus, Chenopodium quinoa y Opuntia ficus-indica, esta última como especie silvestre del área. La metodología propuesta consiste en: el relevamiento de información entre productores locales, la caracterización del suelo en cuanto a sus propiedades químicas (pH, conductividad eléctrica, carbono orgánico y nitratos y la medición isotópica de los vegetales muestreados. A partir de los resultados obtenidos, podemos afirmar que al menos en entornos semiáridos, como es el caso de Quebrada de Humahuaca, la disponibilidad de nutrientes en el suelo repercute en los valores ?15N de Zea mays. Si bien no hay una relación lineal entre las variables propuestas y los resultados isotópicos obtenidos, se registró un rango más amplio de valores cuando la calidad del suelo fue menor. AbstractWe present a methodological proposal for the construction of a frame of reference in paleodietary research through the analysis of Carbon and Nitrogen stable isotopes (?13C y ?15N in archaeology. In particular, we focus on the effect of certain harvest practices in the isotopic values of plants from family farms (the species chosen being Zea mays, Solanum tuberosum, Amaranthus caudatus, Chenopodium quinoa and Opuntia ficus-indica, this last as a wild plant from the area. The methodology consist in: collection of information among local producers, soil characterization in terms of their chemical properties (Ph, electrical conductivity, organic carbon and nitrate and analysis of isotopic values from
Influencia de la intervención antrópica en la ocurrencia de procesos de ladera. Microcuenca de la quebrada Ramos, Flanco Norandino venezolano

OpenAIRE

Katty Montiel Albornoz; Edith Gouveia Muñetón; Eloy Montes Galbán

2007-01-01

El objetivo de este trabajo es analizar la influencia de la intervención antrópica en la ocurrencia de procesos de ladera, en la microcuenca de la quebrada Ramos. Para ello se efectuó un análisis de las condiciones biofísicas a través del método heurístico (Van Westen, 2003) y se identificaron las variables espaciales de mayor incidencia en la dinámica local, mediante la teledetección, inspección de campo y la aplicación de un modelo bajo plataforma SIG, donde el núcleo esen...
Rapid tectonic and paleogeographic evolution associated with the development of the Chucal anticline and the Chucal-Lauca Basin in the Altiplano of Arica, northern Chile

Science.gov (United States)

Charrier, Reynaldo; Chávez, Alvaro N.; Elgueta, Sara; Hérail, Gérard; Flynn, John J.; Croft, Darin A.; Wyss, André R.; Riquelme, Rodrigo; García, Marcelo

2005-05-01

The east-vergent Chucal thrust system, on the east side of the Chapiquiña-Belén ridge in the Western Cordillera, was continuously or almost continuously active for ˜18 m.y. (2.7 Ma). Contractional activity deformed late Oligocene tuffaceous, fluvial, or distal alluvial deposits of the uppermost Lupica Formation; fluvial and lacustrine deposits of the Miocene Chucal Formation; tuffaceous and coarse fluvial deposits of the Quebrada Macusa Formation; and the lower part of the westernmost, latest Miocene?—Pliocene, essentially lacustrine Lauca Formation. It controlled the paleogeographic and paleoenvironmental conditions in which these units were deposited. More humid conditions on the east side of the Chapiquiña-Belén ridge favored the development of an abundant mammal fauna and flora. The deformation is characterized by the Jaropilla thrust fault and the Chucal anticline, which is east of the fault. Deformation on the Chucal anticline began before the deposition of the Chucal Formation and was controlled by a blind thrust fault. The west flank has a nearly constant dip (45-50°) to the west and nearly continuous stratigraphic units, whereas on the east flank, the dip angle is variable, diminishing away from the axis, and the stratigraphic units are discontinuous. The anticline growth on this flank caused the development of three observable progressive unconformities. Deformation was particularly rapid during the deposition of the ˜600 m thick Chucal Formation (between the 21.7±0.8 Ma old uppermost Lupica Formation and the 17.5±0.4 Ma old base of the Quebrada Macusa Formation, a 4 m.y. period). The deformation rate decreased during the deposition of both (1) the ˜200 m thick Quebrada Macusa Formation (between the 17.5±0.4 Ma age of its basal deposits and the ˜11 Ma age of its uppermost levels, a 7 m.y. period) and (2) the lower Lauca Formation (between the ˜11 Ma age of the upper Quebrada Macusa Formation and the 2.3±0.7 Ma old Lauca ignimbrite, which
Paleomagnetic constraints on the age of the Botucatu Formation in Rio Grande do Sul, southern Brazil

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Endale Tamrat

2006-09-01

Full Text Available Paleomagnetic and rockmagnetic data are reported for the aeolian Botucatu Formation, in the southern Brazilian State of Rio Grande do Sul. Oriented samples were taken from a section located between the cities of Jaguari and Santiago. After thermal and alternating field demagnetization, both normal and reversed characteristic remanent magnetizations were found. These results yielded 13 reversed and 5 normal polarity sites, composing a magnetostratigraphic column displaying a sequence of reversed-normal-reversed polarity events. The paleomagnetic pole calculated for 18 sites is located at 114.7ºE, 78.5ºS (dp=8.1º; dm=1.2º, after restoring the strata to the paleohorizontal. This paleomagnetic pole indicates a Late Jurassic-Early Cretaceous age to the Botucatu Formation in the investigated area, and places the sampling sites at paleolatitudes as low as 21ºS.Dados paleomagnéticos e de magnetismo de rochas dos sedimentos eólicos da Formação Botucatu, no Estado do Rio Grande do Sul, obtidos de uma seção localizada entre as cidades de Jaguari e Santiago, permitiram definir a idade dessa formação. Direções de magnetização características com polaridades normal e reversa foram obtidas após desmagnetizações térmicas e por campos magnéticos alternados. Do total de sítios amostrados 13 apresentaram polaridade reversa e 5, polaridade normal, compondo uma coluna magnetoestratigráfica onde se identificam três horizontes de polaridade, na ordem, reverso-normal-reverso. O pólo paleomagnético baseado em 18 sítios está localizado a 114.7ºE, 78.5ºS (dp = 8.1º; dm = 1.2º, depois de restaurada a paleohorizontal dos sítios de amostragem. Este pólo paleomagnético indica idade do Jurássico Superior-Cretáceo Inferior para a Formação Botucatu na área estudada, e indica que as paleolatitudes ocupadas eram da ordem de 21ºS.
Giant fossil tortoise and freshwater chelid turtle remains from the middle Miocene, Quebrada Honda, Bolivia: Evidence for lower paleoelevations for the southern Altiplano

Science.gov (United States)

Cadena, Edwin A.; Anaya, Federico; Croft, Darin A.

2015-12-01

We describe the first Miocene turtle remains from Bolivia, which were collected from the late middle Miocene (13.18-13.03 Ma) of Quebrada Honda, southern Bolivia. This material includes a large scapula-acromion and fragmentary shell elements conferred to the genus Chelonoidis (Testudinidae), and a left xiphiplastron from a pleurodire or side-necked turtle, conferred to Acanthochelys (Chelidae). The occurrence of a giant tortoise and a freshwater turtle suggests that the paleoelevation of the region when the fossils were deposited was lower than has been estimated by stable isotope proxies, with a maximum elevation probably less than 1000 m. At a greater elevation, cool temperatures would have been beyond the tolerable physiological limits for these turtles and other giant ectotherm reptiles.
Ground-water conditions in the Grand County area, Utah, with emphasis on the Mill Creek-Spanish Valley area

Science.gov (United States)

Blanchard, Paul J.

1990-01-01

The Grand County area includes all of Grand County, the Mill Creek and Pack Creek drainages in San Juan County, and the area between the Colorado and Green Rivers in San Juan County. The Grand County area includes about 3,980 square miles, and the Mill Creek-Spanish Valley area includes about 44 square miles. The three principal consolidated-rock aquifers in the Grand County area are the Entrada, Navajo, and Wingate aquifers in the Entrada Sandstone, the Navajo Sandstone, and the Wingate Sandstone, and the principal consolidated-rock aquifer in the Mill Creek-Spanish Valley area is the Glen Canyon aquifer in the Glen Canyon Group, comprised of the Navajo Sandstone, the Kayenta Formation, and the Wingate Sandstone.Recharge to the Entrada, Navajo, and Glen Canyon aquifers typically occurs where the formations containing the aquifers crop out or are overlain by unconsolidated sand deposits. Recharge is enhanced where the sand deposits are saturated at a depth of more than about 6 feet below the land surface, and the effects of evaporation begin to decrease rapidly with depth. Recharge to the Wingate aquifer typically occurs by downward movement of water from the Navajo aquifer through the Kayenta Formation, and primarily occurs where the Navajo Sandstone, Kayenta Formation, and the Wingate Sandstone are fractured.

Humedad crítica y repelencia al agua en andisoles bajo cobertura de cupressus lusitanica y quercus humboldtii en la cuenca de la quebrada piedras blancas (medellín, colombia).

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Caballero Mejía, Bibiana; Jaramillo Jaramillo, Daniel Francisco

2011-01-01

En dos vertientes de la cuenca de la quebrada Piedras Blancas (Medellín, Colombia) se estudió la relación humedad – persistencia de la repelencia al agua en la parte superficial de andisoles bajo dos coberturas vegetales: Cupressus lusitanica (ciprés) y Quercus humboldtii (roble), en tres posiciones a lo largo de la vertiente de colinas bajas: superior, media e inferior y en dos condiciones de humedad: con la humedad de campo y con la humedad adquirida al equilibrar al aire durante dos días m...
Imágenes postconquista y etnogénesis en la Quebrada de Humahuaca, Jujuy, Argentina: Hipótesis de trabajo arqueológico

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Mariel Alejandra López

2006-12-01

Full Text Available Actualmente, y desde el punto de vista arqueológico, es poco lo que se conoce sobre el momento de contacto entre españoles e indígenas en la Quebrada de Humahuaca. La excepción es la esporádica mención de elementos de la cultura material europea, o sus representaciones rupestres, hallados fundamentalmente en sitios prehispánicos. A partir de investigaciones contemporáneas y estudios basados en material de colecciones y/o excavaciones pertenecientes al período que va desde los primeros contactos hispano-indígenas a la implementación del sistema colonial en la región han surgido nuevas hipótesis e interpretaciones arqueológicas. Estas últimas junto con los aportes realizados por la Historia, la Etnohistoria y la Historia del Arte andinos brindan nuevos planteos sobre objetos identificados arqueológicamente como arte mobiliar y el posible significado de sus representaciones de acuerdo con los contextos de uso, o función, determinados por los registros arqueológicos y el estudio de la crónica de la época.Currently, and from the standpoint of Archaeology, very little is known about the contact situation between indigenous and Hispanic people in Quebrada de Humahuaca. However the occasional mention of some objects belonging to the European material culture or their rock art, found mainly in indigenous pre-Hispanic sites is an exception. Based on contemporary research and studies of collections and/or archaeological remains of the period embracing the first contact situations until the establishment of the colonial system in the region new hypothesis and archaeological interpretations appeared. These together with approaches coming from Andean History, Ethnohistory and Art History have opened new lines of research regarding objects identified as mobile art and the meaning of their representations according to specific contexts of use proposed by archaeological records and documentary sources.
Diagnóstico de situación de la equinococosis quística en heces dispersas en las zonas de Quebrada y Puna, provincia de Jujuy, Argentina

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Silvia Frison de Costas

Full Text Available La equinococosis es una enfermedad parasitaria común en el ganado, causada por el cestode Echinococcus granulosus; el perro es su principal hospedador definitivo. La provincia de Jujuy es un área endémica, situada en el ángulo noroeste de la República Argentina. Las condiciones ecológicas restringidas de Quebrada y Puna hacen que la actividad más importante de la población sea la pecuaria formal pastoril y trashumante, especialmente dedicada a ovinos y camélidos. El perro adquiere en estas comunidades una doble función de compañía y como pastor. El objetivo del presente estudio fue realizar un diagnóstico de situación en las áreas de Quebrada y Puna, donde se sospecha que hay circulación de E. granulosus. Desde 2002 hasta 2012 se recolectaron 523 muestras de materia fecal de canino dispersas en el ambiente. Las prevalencias variaron desde un 2 % en Susques hasta un 27,7 % (la mayor de la provincia en Humahuaca. Tumbaya presentó una prevalencia del 21 % en 2007, llegó a 0 % en 2010, pero volvió a aumentar al 10,5 % en 2011. La disminución observada durante 2010 puede explicarse en el hecho de que las muestras se tomaron en localidades donde se había realizado educación sanitaria previamente. En el resto de las regiones estudiadas se observaron prevalencias entre 2 % y 19,4 %. Estos resultados sugieren que la falta de estrategias para el control de la equinococosis ha permitido la dispersión de la enfermedad.
CARACTERIZACIÓN DE LA COMUNIDAD DE MACROINVERTEBRADOS DE LA QUEBRADA PALOBLANCO DE LA CUENCA DEL RÍO OTÚN (RISARALDA, COLOMBIA) Characterization of the Macroinvertebrate Community of Paloblanco Gulch, Otun River Basin

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ELEONORA BERNAL; DUBERNEY GARCÍA; MIGUEL A NOVOA; ATTICUS PINZÓN

2006-01-01

Se realizó un estudio de las comunidades de macroinvertebrados presentes en la quebrada Paloblanco, ubicada en la cuenca del río Otún (Risaralda, Colombia). Los puntos de muestreo seleccionados corresponden a la cabecera y la zona cercana a la desembocadura en el río Otún, ambos con características geomorfológicas de corrientes de primer orden. En cada punto se colectaron los macroinvertebrados de las unidades funcionales hojarasca, epiliton, musgo y grava, junto con una muestra de deriva y f...
Analyses of stable isotopes in camelids collagen bones from Tulan Ravine, Atacama Puna, early formative period (CA 3,1000-2,400BP)

International Nuclear Information System (INIS)

Lopez, Patricio; Cartajena, Isabel; Nunez, Lautaro

2013-01-01

This paper presents the results of isotope analysis (δ 13 C y δ 15 N) conducted on bone collagen found in Lama guanicoe and Lama glama remains from Tulan-85 and Tulan-54 archaeological sites. Both sites have been dated to the Early Formative Period (ca. 3,100-2,400 ap) and are located southeast of the Atacama Puna basin. Faunal samples were selected using anatomical and morphometric criteria. The results indicate divergences in the diets of both species, reflecting vegetation variation in the Tulan Quebrada caused by altitude differences and linked to hunting and herding areas [es
Grand canonical electronic density-functional theory: Algorithms and applications to electrochemistry

International Nuclear Information System (INIS)

Sundararaman, Ravishankar; Goddard, William A. III; Arias, Tomas A.

2017-01-01

First-principles calculations combining density-functional theory and continuum solvation models enable realistic theoretical modeling and design of electrochemical systems. When a reaction proceeds in such systems, the number of electrons in the portion of the system treated quantum mechanically changes continuously, with a balancing charge appearing in the continuum electrolyte. A grand-canonical ensemble of electrons at a chemical potential set by the electrode potential is therefore the ideal description of such systems that directly mimics the experimental condition. We present two distinct algorithms: a self-consistent field method and a direct variational free energy minimization method using auxiliary Hamiltonians (GC-AuxH), to solve the Kohn-Sham equations of electronic density-functional theory directly in the grand canonical ensemble at fixed potential. Both methods substantially improve performance compared to a sequence of conventional fixed-number calculations targeting the desired potential, with the GC-AuxH method additionally exhibiting reliable and smooth exponential convergence of the grand free energy. Lastly, we apply grand-canonical density-functional theory to the under-potential deposition of copper on platinum from chloride-containing electrolytes and show that chloride desorption, not partial copper monolayer formation, is responsible for the second voltammetric peak.
Grand canonical electronic density-functional theory: Algorithms and applications to electrochemistry

Science.gov (United States)

Sundararaman, Ravishankar; Goddard, William A.; Arias, Tomas A.

2017-03-01

First-principles calculations combining density-functional theory and continuum solvation models enable realistic theoretical modeling and design of electrochemical systems. When a reaction proceeds in such systems, the number of electrons in the portion of the system treated quantum mechanically changes continuously, with a balancing charge appearing in the continuum electrolyte. A grand-canonical ensemble of electrons at a chemical potential set by the electrode potential is therefore the ideal description of such systems that directly mimics the experimental condition. We present two distinct algorithms: a self-consistent field method and a direct variational free energy minimization method using auxiliary Hamiltonians (GC-AuxH), to solve the Kohn-Sham equations of electronic density-functional theory directly in the grand canonical ensemble at fixed potential. Both methods substantially improve performance compared to a sequence of conventional fixed-number calculations targeting the desired potential, with the GC-AuxH method additionally exhibiting reliable and smooth exponential convergence of the grand free energy. Finally, we apply grand-canonical density-functional theory to the under-potential deposition of copper on platinum from chloride-containing electrolytes and show that chloride desorption, not partial copper monolayer formation, is responsible for the second voltammetric peak.
Carbonate Formation And Diagenesis In Pastos Grandes Laguna (Bolivia): Modern Analog For The South Atlantic Cretaceous Presalt Travertinoid Deposits

Science.gov (United States)

Muller, E.; Ader, M.; Gérard, E.; Virgone, A.; Gaucher, E.; Bougeault, C.; Durlet, C.; Moreira, M. A.; Virgile, R.; Vennin, E.; Agogué, H.; Hugoni, M.

2017-12-01

The Cretaceous Presalt travertinoid deposits of the South Atlantic are usually considered as "strange deposits" having poor equivalents in modern environments. Pastos Grandes Laguna, which is located in a 2.9 Ma caldera on the andean-bolivian Altiplano (at 4450 m), is intersected by active faults with hydrothermal fluids and presents a spherulitic plateform with similar sedimentological facies to the Presalt: halite and bedded evaporites, shrub-shaped calcites, ooids, pisolites and various stromatolites. Pastos Grandes Laguna is certainly one of the best modern analog of the Presalt for investigating the on going processes of carbonate deposition and diagenesis and the influence of biology. During two expeditions, we recovered samples of gas, water and microbial mats from the hydrothermal sources to the evaporating zones on the spherulitic plateform. These samples are being analyzed to determine 1) the influence of the gases emitted at the hydrothermal sources (chemical and isotopic composition) on the chemistry of the Laguna and the mineralogy of its sediments and 2) the role of ecosystems that develop in this environment on carbonate formation. Preliminary results on gas composition, corrected for the atmospheric contribution, indicates a magmatic source of CO2 partly mantellic associated with a small crustal contribution. Other initial results have so far indicated that CO2 gas emissions, evaporation, as well as photosynthesis and respiration play a role on water chemistry and carbonate precipitation. This study will contribute to the overall understanding of the role of organisms in sedimentation and the predictive diagenetic evolution of hydrothermal and lacustrine deposits.
Petrographic aspects of the intrusive complex of Arroyo Marincho and granodiorite of Arroyo Grande.Part I

International Nuclear Information System (INIS)

Preciozzi, F.

2011-01-01

The epimetamorphis of Arroyo Grande formation (lower Precambrian) are integrated by several granitoid bodies. The Marincho complex represented by;a) main unit integrated by hornoblenditic diorite to mozongranite b) an incomformable belt of porfinoblastic honobledite c) one unit characterized by a two mica granite heterogranular to porphiroic.The petrographic diagrams shows evolutive lines, suggestings differentd origins for the main granodiorite, granodiorite the Arroyo Grande, south granite and the hornoblendites.
Z2 vortex strings in grand unified theories

International Nuclear Information System (INIS)

Olive, D.; Turok, N.

1982-01-01

Spontaneously broken gauge theories may display distinct vortex string solutions for the disconnected components of the exact gauge symmetry group. A type of Higgs mechanism thought to apply in grand unified theories as being responsible for fermion masses yields Z 2 vortex lines, irrespectively of the group. These could seed galaxy formation if the corresponding fermion masses are superheavy. More generally a Higgs mechanism producing Zsub(n) vortex strings is presented. (orig.)
Grandes remolques

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Editorial, Equipo

1961-07-01

Full Text Available El empleo creciente del material pesado auxiliar en la construcción de obras de ingeniería civil ha motivado la fabricación de grandes plataformas, capaces de transportar toda clase de maquinaria auxiliar. En general, este tipo de maquinaria requiere medios de transporte, pues su circulación por carreteras es lenta, obstructiva y cara, siempre que se trate de grandes distancias, caso presente en la mayoría de ocasiones en que se exige un traslado de esta maquinaria de una a otra obra.
Object formation and subject formation: The innovation campus in the Netherlands

NARCIS (Netherlands)

Kooij, H.J.

2015-01-01

A central question within planning theory is how changes between the relations of ‘grand institutions’ such as state, market and education influence the formation of objects ‘on the ground’. Drawing upon Foucault’s work, this article contributes to the understanding of these relations and argues
Systems thinking 1.0 and systems thinking 2.0: complexity science and a new conception of “cause”

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Dekker, Sidney

2011-01-01

Full Text Available A nossa compreensão e investigação de acidentes aeronáuticos está dominada por uma visão mecanicista mundial a qual procura encontrar peças quebradas e reparálas. Apesar do “Systems Thinking” estar em voga nas últimas duas décadas, ele frequentemente ainda reduz a possibilidade de encontrar peças quebradas distantes no espaço e tempo do acidente. Esse é o Systems Thinking 1. 0. Em contraste, a complexidade da ciência, e sua nova concepção de “causa”, oferece um caminho para o Systems Thinking 2. 0. Nele os investigadores e gerentes podem ficar a par das consequências da dependência, dos sistemas abertos, da assimetria entre pequenas contribuições e grandes efeitos, e da imprevisibilidade de esforços para controlar ou regular a complexidade. Este artigo usa um estudo de caso para comparar o Systems Thinking 1. 0 e o 2. 0 e desenvolver este último
ANALYSIS OF TERRESTRIAL PLANET FORMATION BY THE GRAND TACK MODEL: SYSTEM ARCHITECTURE AND TACK LOCATION

Energy Technology Data Exchange (ETDEWEB)

Brasser, R.; Ida, S. [Earth-Life Science Institute, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550 (Japan); Matsumura, S. [School of Science and Engineering, Division of Physics, Fulton Building, University of Dundee, Dundee DD1 4HN (United Kingdom); Mojzsis, S. J. [Collaborative for Research in Origins (CRiO), Department of Geological Sciences, University of Colorado, UCB 399, 2200 Colorado Avenue, Boulder, Colorado 80309-0399 (United States); Werner, S. C. [The Centre for Earth Evolution and Dynamics, University of Oslo, Sem Saelandsvei 24, NO-0371 Oslo (Norway)

2016-04-20

The Grand Tack model of terrestrial planet formation has emerged in recent years as the premier scenario used to account for several observed features of the inner solar system. It relies on the early migration of the giant planets to gravitationally sculpt and mix the planetesimal disk down to ∼1 au, after which the terrestrial planets accrete from material remaining in a narrow circumsolar annulus. Here, we investigate how the model fares under a range of initial conditions and migration course-change (“tack”) locations. We run a large number of N-body simulations with tack locations of 1.5 and 2 au and test initial conditions using equal-mass planetary embryos and a semi-analytical approach to oligarchic growth. We make use of a recent model of the protosolar disk that takes into account viscous heating, includes the full effect of type 1 migration, and employs a realistic mass–radius relation for the growing terrestrial planets. Our results show that the canonical tack location of Jupiter at 1.5 au is inconsistent with the most massive planet residing at 1 au at greater than 95% confidence. This favors a tack farther out at 2 au for the disk model and parameters employed. Of the different initial conditions, we find that the oligarchic case is capable of statistically reproducing the orbital architecture and mass distribution of the terrestrial planets, while the equal-mass embryo case is not.
Implementing Patient Family-Centered Care Grand Rounds Using Patient/Family Advisor Narratives

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Maureen B Fagan DNP, MHA, FNP-BC

2015-11-01

Full Text Available With the emerging trend of patient family–centered care in health care, it is essential that physicians be exposed to patient and family perspectives of care during medical education and training. Grand Rounds provides an ideal format for physicians to learn about patient family–centered care. At Brigham and Women’s Hospital, we sought to bring the voice of the patient to Patient Family–Centered Grand Rounds in order to expose clinicians to rich narratives describing the medical care received by patients/families and to ultimately change physician practice to reflect patient family–centered principles. We conducted a clinician survey and found promising results indicating that patient/family narratives can be effective at educating physicians about patient family–centered care.
En sus huaycos y quebradas: formas materiales de la resistencia en las tierras de malfín Material forms of resistance in the lands of malfín: huaycos and quebradas

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Laura Quiroga

2010-12-01

Full Text Available Las representaciones coloniales en torno a los espacios geográficos expresadas en cartografías o textos traducen un campo de disputa por el control de espacios, recursos y redes sociales. Para el dominio colonial las quebradas más altas del ambiente serrano, ubicadas en la jurisdicción de Londres de la gobernación del Tucumán, representaban espacios de refugio y resistencia de la población nativa. Pero esta estrategia no era producto de una conducta propia de una situación de peligro en la guerra sino un recurso previsto y planeado para el que se reconoce una profundidad temporal enlazada con prácticas de subsistencia y reproducción propias del tardío prehispánico, y resignificadas en un contexto colonial de guerra y transformación. Convertir el término "huayco" en un problema de investigación supone transformar una categoría geográfica, característica de un relieve serrano, en la descripción e interpretación de una práctica que construye resistencias como condiciones para la reproducción social.Colonial representations of geographic spaces drawn either on books or texts point out a dispute camp over spaces, resources, and social networks. Thus the higher mountain ravines around Londres -Gobernación del Tucumán- became from an indigenous perspective, a refuge and a resistance space to challenge colonial domain. These strategies were not driven by the threat of war but predictable and planned resources attached to the Indian's subsistence and reproductive tactics, carried out from the late prehispanic period to the colonial context of transformation and war. Turning the term huayco into a research problem implies to transform a geographic category, a feature of a mountainous landscape, in a concept suitable to describe and interpret a social practice that builds resistance as a condition of social reproduction.
Grand-design Spiral Arms in a Young Forming Circumstellar Disk

Energy Technology Data Exchange (ETDEWEB)

Tomida, Kengo; Lin, Chia Hui [Department of Earth and Space Science, Osaka University, Toyonaka, Osaka 560-0043 (Japan); Machida, Masahiro N. [Department of Earth and Planetary Sciences, Faculty of Sciences, Kyushu University, Nishi-ku, Fukuoka 819-0395 (Japan); Hosokawa, Takashi [Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502 (Japan); Sakurai, Yuya, E-mail: tomida@vega.ess.sci.osaka-u.ac.jp [Department of Physics, The University of Tokyo, Tokyo 113-0033 (Japan)

2017-01-20

We study formation and long-term evolution of a circumstellar disk in a collapsing molecular cloud core using a resistive magnetohydrodynamic simulation. While the formed circumstellar disk is initially small, it grows as accretion continues, and its radius becomes as large as 200 au toward the end of the Class-I phase. A pair of grand-design spiral arms form due to gravitational instability in the disk, and they transfer angular momentum in the highly resistive disk. Although the spiral arms disappear in a few rotations as expected in a classical theory, new spiral arms form recurrently as the disk, soon becoming unstable again by gas accretion. Such recurrent spiral arms persist throughout the Class-0 and I phases. We then perform synthetic observations and compare our model with a recent high-resolution observation of a young stellar object Elias 2–27, whose circumstellar disk has grand-design spiral arms. We find good agreement between our theoretical model and the observation. Our model suggests that the grand-design spiral arms around Elias 2–27 are consistent with material arms formed by gravitational instability. If such spiral arms commonly exist in young circumstellar disks, it implies that young circumstellar disks are considerably massive and gravitational instability is the key process of angular momentum transport.
Grand-design Spiral Arms in a Young Forming Circumstellar Disk

International Nuclear Information System (INIS)

Tomida, Kengo; Lin, Chia Hui; Machida, Masahiro N.; Hosokawa, Takashi; Sakurai, Yuya

2017-01-01

We study formation and long-term evolution of a circumstellar disk in a collapsing molecular cloud core using a resistive magnetohydrodynamic simulation. While the formed circumstellar disk is initially small, it grows as accretion continues, and its radius becomes as large as 200 au toward the end of the Class-I phase. A pair of grand-design spiral arms form due to gravitational instability in the disk, and they transfer angular momentum in the highly resistive disk. Although the spiral arms disappear in a few rotations as expected in a classical theory, new spiral arms form recurrently as the disk, soon becoming unstable again by gas accretion. Such recurrent spiral arms persist throughout the Class-0 and I phases. We then perform synthetic observations and compare our model with a recent high-resolution observation of a young stellar object Elias 2–27, whose circumstellar disk has grand-design spiral arms. We find good agreement between our theoretical model and the observation. Our model suggests that the grand-design spiral arms around Elias 2–27 are consistent with material arms formed by gravitational instability. If such spiral arms commonly exist in young circumstellar disks, it implies that young circumstellar disks are considerably massive and gravitational instability is the key process of angular momentum transport.
Caracterización de la calidad de las aguas de la quebrada Fucha utilizando los índices de contaminación ICO con respecto a la precipitación y usos del suelo (Water quality characterization from creek Fucha using ICO pollution indices about precipitation and land use

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Andrés Guillermo Chavarro

2016-09-01

Full Text Available Se presentan los resultados de la caracterización de la calidad de las aguas de la quebrada Fucha a través de los índices de contaminación ICO con respecto a los usos del suelo en diferentes épocas del año 2015. La quebrada se encuentra ubicada en la localidad de Usme, al suroriente de Bogotá (Colombia, en el límite urbano rural. Se midieron variables fisicoquímicas en seis muestreos y en tres puntos de la quebrada, se calcularon cuatro índices de contaminación (ICOMI, ICOMO, ICOSUS e ICOTRO; a estos se les realizó un análisis multivariado de correlación incluyendo la precipitación y los usos del suelo como variable indicador, se determinó el grado de correlación a través de regresiones simples para dos pares de variables. Adicionalmente se realizó un ANOVA con los usos del suelo y los valores obtenidos de los índices. No se encontró contaminación por mineralización y la quebrada en general presentó condiciones eutróficas, de igual manera se pudo establecer una correlación estadísticamente significativa entre la precipitación y el índice de contaminación trófica (ICOTRO, así como entre el índice de contaminación por sólidos suspendidos (ICOSUS e ICOTRO. Por su parte los usos del suelo no presentaron una correlación significativa con el aumento o disminución en el valor de los índices. (Abstract. The results of the characterization of the quality of water from the Fucha brook through ICO’s pollution indexes regarding land use at different times of the year are presented. The gorge is located in the town of Usme, in the urban-rural boundary. physic-chemical variables was measured in six samples and three points of the gorge, four indices of contamination (ICOMI, ICOMO, ICOSUS and ICOTRO were calculated, these were subjected to a multivariate correlation analysis including precipitation, it was determined the degree of correlation through simple regression for these two pairs of variables. In addition, an
Numerical modeling of the late Cenozoic geomorphic evolution of Grand Canyon, Arizona

Science.gov (United States)

Pelletier, J. D.

2008-12-01

The late Cenozoic geomorphic evolution of Grand Canyon has been influenced by three primary tectonic and drainage adjustment events. First, incision into the Paleozoic strata of the southwestern margin of the Colorado Plateau began at 16 Ma in response to relief production along the Grand Wash Fault. Second, the ancestral Upper Colorado River reversed drainage and became integrated with the Lower Colorado River basin through Grand Canyon between 5.5 and 6 Ma. Third, the Colorado River was influenced by Plio- Quaternary normal faulting along the Hurricane and Toroweap Faults. Despite the relatively firm constraints available on the timing of these events, the geomorphic evolution of Grand Canyon is still not well constrained and many questions remain. For example, was there a deeply-incised gorge in western Grand Canyon before Colorado River integration? How and where was the Colorado River integrated? How have incision rates varied in space and time? In this paper, I describe the results of a numerical modeling study designed to address these questions. The model integrates the stream power model for bedrock channel erosion with cliff retreat and the flexural-isostatic response to erosion. The model honors the structural geology of the Grand Canyon region, including the variable erodibility of rocks in the Colorado Plateau and the occurrence of Plio-Quaternary normal faulting along the Hurricane-Toroweap Fault system. We present the results of two models designed to bracket the possible drainage architectures of the southwestern margin of the Colorado Plateau in Miocene time. In the first model, we assume a 13,000 km2 drainage basin primarily sourced from the Hualapai and Coconino Plateaux. The results of this model indicate that relief production along the Grand Wash fault initiated the formation of a large (700 m) knickpoint that migrated headward at a rate of 15 km/Myr prior to drainage integration at 6 Ma to form a deep gorge in western Grand Canyon. This model

Learners' decisions for attending Pediatric Grand Rounds: a qualitative and quantitative study

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Zuckerman Grace

2006-04-01

Full Text Available Abstract Background Although grand rounds plays a major educational role at academic medical centers, there has been little investigation into the factors influencing the learners' decision to attend. Greater awareness of attendees' expectations may allow grand rounds planners to better accommodate the learners' perspective, potentially making continuing education activities more attractive and inviting. Methods We used both qualitative (part A and quantitative (part B techniques to investigate the motivators and barriers to grand rounds attendance. Part A investigated contextual factors influencing attendance as expressed through attendee interviews. Transcripts of the interviews were analyzed using grounded theory techniques. We created a concept map linking key factors and their relationships. In part B we quantified the motivators and barriers identified during the initial interviews through a survey of the grand rounds audience. Results Sixteen persons voluntarily took part in the qualitative study (part A by participating in one of seven group interview sessions. Of the 14 themes that emerged from these sessions, the most frequent factors motivating attendance involved competent practice and the need to know. All sessions discussed intellectual stimulation, social interaction, time constraints and convenience, licensure, content and format, and absence of cost for attending sessions. The 59 respondents to the survey (part B identified clinically-useful topics (85%, continuing education credit (46%, cutting-edge research (27%, networking (22%, and refreshments (8% as motivators and non-relevant topics (44% and too busy to attend (56% as barriers. Conclusion Greater understanding of the consumers' perspective can allow planners to tailor the style, content, and logistics to make grand rounds more attractive and inviting.
Grand Bank seabed and shallow subsurface geology in relation to subsea engineering design

Energy Technology Data Exchange (ETDEWEB)

Sonnichsen, G.V.; King, E.L. [Natural Resources Canada, Dartmouth, NS (Canada). Geological Survey of Canada

2005-07-01

An overview of the surficial and subseabed geology of the northeastern section of the Newfoundland Grand Banks was presented with particular reference to the Jeanne d'Arc Basin. The stratigraphy of the upper 100 metres below seafloor has been interpreted from high-resolution seismic reflection data, surficial sediment samples and geotechnical borehole data. This paper described the character and strength properties of nearby seabed sediments and addressed the issue of seabed scour by icebergs, which is the main process threatening subsea facilities. Other potential geohazards such as shallow gas, buried channels and sediment mobility are not considered to be major barriers to offshore development in the Jeanne d'Arc Basin. However, drifting icebergs with large drafts often impact the seabed, producing either linear furrows or circular pits. The constraints to subsea design and construction were identified. It was noted that regional geological characterization is needed to help select the location for offshore platforms as well as routes for excavating trenches for subsea installations for offshore hydrocarbon development. Updated regional surficial and near-seabed stratigraphy is needed to predict foundation conditions beyond ground truth from isolated geotechnical borehole investigations. This paper described the Grand Banks regional setting, regional geology, near-surface sediment in the northeastern Grand Banks, and Quaternary sediments in the northeastern Grand Banks with reference to the Grand Banks Drift, Adolphus Sand, and the Grand Banks Sand and Gravel Formation. Risk assessments have shown that well heads and manifolds should be installed below the seabed in order to avoid damage by seabed-scouring icebergs and that the design scour depth should be re-examined for future subsea development. It was suggested that more emphasis on gathering multibeam bathymetric data and repetitive mapping of the seabed will better define scour risk. 57 refs., 3
La importancia de ser grande

OpenAIRE

Baisre, J. A.

2007-01-01

Se responde a las preguntas ¿por qué los mamíferos marinos son los animales más grandes del planeta?, ¿Por qué los peces no pueden ser más grandes?. Éstas y otras interrogantes son respondidas de forma sencilla y clara.
Energía minihidráulica : una alternativa energética para electrificación rural

OpenAIRE

Agudelo Flórez, Sergio Cipriano; Chamorro Rendón, Luis Javier

2002-01-01

Entre las actividades del Grupo de Energía Alternativa (GEA) de la Facultad de Ingeniería de la Universidad de Antioquia, se pretende el desarrollo de prototipos que aprovechen las fuentes no convencionales para la producción de energía eléctrica y así satisfacer las necesidades insatisfechas de las viviendas rurales aisladas de la red energética nacional. En la región del Oriente antioqueño, se encontró un formidable recurso hidráulico de grandes ríos, quebradas y fuentes de agua cercanas a ...
Grand unified theories. Pt. 2

International Nuclear Information System (INIS)

Ellis, J.

1982-01-01

The author gives an introduction to the construction of grand unified theories on the base of the SU(3)xSU(2)xU(1) model of the strong, weak, and electromagnetic interactions. Especially he discusses the proton decay, neutrino masses and oscillations, and cosmological implications in connection with grand unified theories. (orig./HSI)
Geohydrology of White Rock Canyon of the Rio Grande from Otowi to Frijoles Canyon

International Nuclear Information System (INIS)

Purtymun, W.D.; Peters, R.J.; Owens, J.W.

1980-12-01

Twenty-seven springs discharge from the Totavi Lentil and Tesuque Formation in White Rock Canyon. Water generally acquires its chemical characteristics from rock units that comprise the spring aquifer. Twenty-two of the springs are separated into three groups of similar aquifer-related chemical quality. The five remaining springs make up a fourth group with a chemical quality that differs due to localized conditions in the aquifer. Localized conditions may be related to recharge or discharge in or near basalt intrusion or through faults. Streams from Pajarito, Ancho, and Frijoles Canyons discharge into the Rio Grande in White Rock Canyon. The base flow in the streams is from springs. Sanitary effluent in Mortandad Canyon from the treatment plant at White Rock also reaches the Rio Grande
Albuquerque/Middle Rio Grande Urban Waters Viewer

Science.gov (United States)

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

International Nuclear Information System (INIS)

Elmegreen, B.G.; Elmegreen, D.M.

1983-01-01

Spiral arm classifications were made for 261 low-inclination galaxies in groups listed by Huchra and Geller. The fractional occurrence of grand design spiral structure in nonbarred galaxies was found to increase from approx.0.1 to approx.0.6 and then level off as the group crossing rate or galaxy collision rate in a group increases. A simple model is discussed where the random encounters between galaxies of any type and flocculent galaxies induce transient grand design spirals in the flocculent galaxies. If this grand-design stimulation occurs for binary collisions with impact parameters less than αR 25 , were R 25 is the galactic radius at 25 mag arcsec - 2 , and if the induced grand design spirals persist for an average time equal to #betta# galactic rotations, then the quantity α 2 #betta# equals approximately 3 x 10 4 . If binary collisions are responsible for grand design spirals, then this result implies either that the induced spirals last for many galactic rotations (#betta#>15), or that they can be stimulated by very remote encounters (α>45.) Alternatively, grand design spirals may be stimulated by multiple galaxy encounters, which would be the case for such large α, or by interactions with the potential well of the associated group, rather than by simple binary encounters. Weak correlations between the grand design fraction and the galaxy size, or between this fraction and the total number of galaxies in a group, were also found. Spiral structures of barred galaxies show no correlations with group environment
Reducing firing of an early pottery making kiln at Batan Grande, Peru: A Moessbauer study

International Nuclear Information System (INIS)

Wagner, U.; Gebhard, R.; Haeusler, W.; Hutzelmann, T.; Riederer, J.; Shimada, I.; Sosa, J.; Wagner, F.E.

1999-01-01

Material from field firing experiments using a 2,700-year old Formative kiln at Batan Grande, Peru, was studied by X-ray diffraction and Moessbauer spectroscopy. The experiments explore the technology involved in producing the gray and black reduced ware for which Cupisnique and other Formative ceramics are justly known. During firing, the iron-bearing compounds in clays undergo characteristic changes which depend on kiln temperature and atmosphere. These changes can be observed in the Moessbauer spectra. By comparing spectra of an appropriate clay fired in field experiments and in the laboratory with the spectra of ancient ceramics, a description of Formative firing techniques in a reducing environment is attempted
Comunidades herpetológicas de la reserva de La Quebrada, Río Ceballos, Córdoba (Argentina

Directory of Open Access Journals (Sweden)

Gavier, Gregorio

2003-11-01

Full Text Available La presente investigación se desarrolló en un ambiente característico de las sierras Chicas de Córdoba, la Reserva La Quebrada. El objetivo del estudio fue describir la composición y diversidad de la comunidad herpetofaunística, sus cambios estacionales, y estudiar si existen comunidades diferentes asociadas a los ecosistemas de pastizal, bosque y borde de arroyo. También se analizó su relación con las variables ambientales climáticas. Se instalaron de una a tres líneas de muestreo por ambiente, cada una con 15 trampas de caída separadas por una distancia de 10 m, que se revisaron mensualmente entre febrero de 1991 y mayo de 1994. Se capturaron 147 especímenes distribuidos entre 21 especies: 8 anfibios (n= 114, 8 ofidios (n= 9 y 5 saurios (n= 24. Odontophrynus occidentalis e Hyla pulchella cordobae sumaron alrededor del 60% de la abundancia total. H. p. cordobae fue la especie de distribución más amplia. Las especies más abundantes en los diferentes ambientes fueron Odontophrynus americanus y Leptodactylus gracilis en pastizal, O. occidentalis y Mabuya dorsivittata en bosque, O. occidentalis e H. p. cordobae en bordes de arroyo. Los ambientes estudiados no mostraron diferencias en cuanto a la riqueza o abundancia de individuos, pero sí en relación a la composición de las comunidades y los cambios estacionales en abundancias. La diversidad fue mayor en el pastizal (H'=1,93 con respecto al bosque (H'=1,41 y al borde de arroyo (H'=1,19. Abundancia, riqueza y diversidad para la Reserva en su conjunto correlacionaron en forma directa con temperatura y precipitación. Se comprobó la existencia de dos comunidades diferentes, una relacionada al ambiente de pastizal y otra a la unidad formada por el bosque y el borde de arroyo. Las altas tasas de deforestación registradas en el área podrían modificar las relaciones de abundancias entre especies y los patrones de biodiversidad en el área.La presente investigación se desarrolló en
Sporophyte and gametophyte development of Platycerium coronarium (Koenig) Desv. and P. grande (Fee) C. Presl. (Polypodiaceae) through in vitro propagation.

Science.gov (United States)

Aspiras, Reyno A

2010-01-01

The sporophyte and gametophyte development of Platycerium coronarium and P. grande were compared through ex situ propagation using in vitro culture technique and under greenhouse and field conditions. The morphology of the sporophyte and gametophyte, type of spore germination and prothallial development of P. coronarium and P. grande were documented. Gametophytes of P. coronarium and P. grande were cultured in vitro using different media. The gametophytes were then transferred and potted in sterile chopped Cyathea spp. (anonotong) roots and garden soil for sporophyte formation. Sporophytes (plantlets) of the two Platycerium species were attached on the slabs of anonotong and on branches and trunks of Swietenia macrophylla (mahogany) under greenhouse and field conditions. Sporophyte morphology of P. coronarium and P. grande varies but not their gametophyte morphology. P. coronarium and P. grande exhibited rapid spore germination and gametophyte development in both spore culture medium and Knudson C culture medium containing 2% glucose. Gametophytes of P. coronarium and P. grande transferred to potting medium produced more number of sporophytes while the gametophytes inside the culture media did not produce sporophytes. Sporophytes of P. grande attached on mahogany branches produced more number of leaves with bigger leaf area than those attached on anonotong slabs. Likewise, sporophytes of P. coronarium attached on mahogany branches and anonotong slabs did not develop new leaves during two weeks monitoring and are still in a period of adjustment to its environment. Sporophytes of P. grande grown or attached on the trunk of mahogany trees in the field and under shaded environment favored their growth.
Caracterización fisicoquímica y biológica de la calidad de aguas de la cuenca de la quebrada Piedras Blancas, Antioquia, Colombia

Directory of Open Access Journals (Sweden)

José A. Posada G.

2000-03-01

Full Text Available Entre abril y diciembre de 1996, se llevó a cabo un estudio limnológico de 17 quebradas ubicada en el área del Parque Piedras Blancas (6° 8' 20''N, 75° 30' 20''Wlocalizado al SE de Medellín a 2 400 m de altura. El estudio se realizó en 35 estaciones de muestreo y se establecieron tres períodos de muestreo: el primero entre abril y mayo, el segundo de agosto a septiembre y el tercero de octubre a diciembre de 1996. La finalidad del mismo era establecer la calidad ecológica de las aguas ubicadas en el área del Parque. Para la recolección cualitativa de los macroinvertebrados se utilizaron las redes D-net y de pantalla. El área de muestreo en cada estación fue de 6 m2. Las variables fisicoquímicas mostraron fluctuaciones bajas a lo largo del estudio, excepto la conductividad y los sólidos totales, cuyos cambios estuvieron relacionados con la alta pluviosidad durante el período de estudio. La comunidad de macroinvertebrados encontrada, estuvo conformada por 113 géneros, pertenecientes a 63 familias y siete Phyla, siendo el orden Tichoptera el más abundante. El área de muestreo en cada estación fue de 6 m². El resultado del estudio muestra como la cuenca de la quebrada Piedras Blancas presenta condiciones que pueden clasificarse en términos generales como oligo-mesotróficas.From April to December 1996 a limnological study was carried out in 17 streams near Medellín, in order to stablish their water quality. The area is located in Piedras Blancas Park (6° 8' 20''N, 75° 30' 20''W SE of Medellín at 2 400 m altitude. Three sampling periods, encompasing wet and dry seasons were selected: April-May, August-September and October-December. For qualitative collection methods hand screen D-net were used. Each station was intensively sampled to collect most macroinvertebrates in all types of habitat. The area sampled in each station was 6 m². Physicochemical variables in general showed small fluctuations along the study; only
‘¡Y tenemos que ser más unidos!’: Carnaval y Política en una zona rural de la Quebrada de Humahuaca, o cómo mantener las tradiciones que se pierden en el pueblo

Directory of Open Access Journals (Sweden)

Guillermina Espósito

2009-04-01

Full Text Available Desde hace algunos años, las reflexiones académicas que desde la Antropología se han desarrolladoacerca de diversos eventos de la vida social, vienen enfatizando la dimensión performática de ciertosgéneros dramáticos, como es el caso de los rituales y las fiestas. En el marco de los trabajos de campoetnográficos llevados a cabo durante el verano de 2008, tuvimos la oportunidad de participar en losdistintos eventos que conforman el carnaval que todos los años se festeja en la quebrada de PipintuGrande, Jujuy. Inmersos en el clima festivo del carnaval, intentando tomar el pulso de los rituales dedesentierro y entierro, tan prolíficos en coplas de inusitado ingenio como en ch’allas y machas,comenzamos a reflexionar acerca de los modos de articulación entre los géneros performáticos, lasidentidades puestas en juego y los procesos de resistencia que se modulan en torno a una tensiónentre la percepción de un devenir agonístico que amenaza la unión interfamiliar, amenaza representadaen la política, y la puesta en acto de elementos simbólicos ‘tradicionales’, donde el miedo a la pérdidade las tradiciones y costumbres articulan los discursos que se despliegan durante el carnaval.AbstractSince some years ago, the academic reflections that from the Anthropology have been developedabout diverse events of the social life, emphasize the performatic dimension of certain dramatic genres,as the cases of rituals and parties. In the frame of the ethnographic field works carried out during thesummer of 2008, we had the opportunity to take part in the different events that shape the carnivalthat every year is feasted in the gorge of Pipintu Grande, Jujuy. Immersed in the festive climate of thecarnival, trying to take the pulse of the rituals of the ‘entierro’ and the ‘desentierro’, so prolific ofcouplets of unusual ingenuity as in ‘ch’allas’ and ‘machas’, we began to think about the manners ofarticulation between the
Grand unified theories

International Nuclear Information System (INIS)

Langacker, P.

1981-01-01

In this talk I discuss the present status of these theories and of their observational and experimental implications. In section II, I briefly review the standard SU 3 sup(c) x SU 2 x U 1 model of the strong and electroweak interactions. Although phenomenologically successful, the standard model leaves many questions unanswered. Some of these questions are addressed by grand unified theories, which are defined and discussed in Section III. The Georgi-Glashow SU 5 model is described, as are theories based on larger groups such as SO 10 , E 6 , or SO 16 . It is emphasized that there are many possible grand unified theories and that it is an experimental problem not only to test the basic ideas but to discriminate between models. (orig./HSI)
Star formation and the surface brightness of spiral galaxies

International Nuclear Information System (INIS)

Phillipps, S.; Disney, M.

1985-01-01

The (blue) surface brightness of spiral galaxies is significantly correlated with their Hα linewidth. This can be most plausibly interpreted as a correlation of surface brightness with star formation rate. There is also a significant difference in surface brightness between galaxies forming stars in a grand design spiral pattern and those with floc star formation regions. (author)
2010 Panel on the Biomaterials Grand Challenges

Science.gov (United States)

Reichert, William “Monty”; Ratner, Buddy D.; Anderson, James; Coury, Art; Hoffman, Allan S.; Laurencin, Cato T.; Tirrell, David

2014-01-01

In 2009, the National Academy for Engineering issued the Grand Challenges for Engineering in the 21st Century comprised of 14 technical challenges that must be addressed to build a healthy, profitable, sustainable, and secure global community (http://www.engineeringchallenges.org). Although crucial, none of the NEA Grand Challenges adequately addressed the challenges that face the biomaterials community. In response to the NAE Grand Challenges, Monty Reichert of Duke University organized a panel entitled Grand Challenges in Biomaterials at the at the 2010 Society for Biomaterials Annual Meeting in Seattle. Six members of the National Academies—Buddy Ratner, James Anderson, Allan Hoffman, Art Coury, Cato Laurencin, and David Tirrell—were asked to propose a grand challenge to the audience that, if met, would significantly impact the future of biomaterials and medical devices. Successfully meeting these challenges will speed the 60-plus year transition from commodity, off-the-shelf biomaterials to bioengineered chemistries, and biomaterial devices that will significantly advance our ability to address patient needs and also to create new market opportunities. PMID:21171147
Symposium 19: Federal University of Rio Grande do Sul: its Role in the Biochemistry Teaching in the Southernmost Brazilian States

Directory of Open Access Journals (Sweden)

Clóvis M.D. Wannmacher

2014-08-01

Full Text Available K-Education(Portuguese Chair: V. Trindade Bayardo Torres; Clovis Wannmacher; Denise Macedo Federal University of Rio Grande do Sul: its Role in the Biochemistry Teaching in the Southernmost Brazilian States. Wannmacher, C.M.D. Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil. At present, most Biochemistry teaching in Rio Grande do Sul and Santa Catarina has its origin in the Department of Biochemistry of the Federal University of Rio Grande do Sul. In the 70’s, all the teachers of the Department wrote a book together: “Fundamental Biochemistry”. This book was always used in the classes by groups of students of different careers supervised by the respective teacher. At the same time, this methodology was not used by pharmaceutical teachers, but they recommended the Department’s book to their students. Along the next years, Biochemistry teaching was adapted according to the professional course and to the teacher’s personal characteristics. Today, there are two extremes strategies again: one traditional for the most basic biochemistry student’s formation (including theoretical, laboratorial, seminars and informatics classes and the other, experimental-clinical, for physician’s formation (including seminars of molecular approach to the most prevalent diseases, mainly, those leading to failure of organs/systems and the interaction with patients from HCPA by the interpretation of their biochemical data. On the other hand, the Post Graduation Program, at first, emphasized biochemistry teaching in a traditional form, but gradually changed the emphasis to investigation, and most classes changed to scientific paper reports. To stimulate the teaching formation, two activities were offered to post-graduation students: Biochemistry Teaching Methodology and Teaching Practice in Biochemistry. These activities promote opportunity for the students to
Geomorphic evolution of the San Luis Basin and Rio Grande in southern Colorado and northern New Mexico

Science.gov (United States)

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

2016-01-01

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

Science.gov (United States)

Mack, Greg H.; Seager, William R.; Kieling, John

1994-08-01

The distribution of nonmarine lithofacies, paleocurrents, and provenance data are used to define the evolution of late Oligocene and Miocene basins and complementary uplifts in the southern Rio Grande rift in the vicinity of Hatch, New Mexico, USA. The late Oligocene-middle Miocene Hayner Ranch Formation, which consists of a maximum of 1000 m of alluvial-fan, alluvial-flat, and lacustrine-carbonate lithofacies, was deposited in a narrow (12 km), northwest-trending, northeast-tilted half graben, whose footwall was the Caballo Mountains block. Stratigraphic separation on the border faults of the Caballo Mountains block was approximately 1615 m. An additional 854 m of stratigraphic separation along the Caballo Mountains border faults occurred during deposition of the middle-late Miocene Rincon Valley Formation, which is composed of up to 610 m of alluvial-fan, alluvial-flat, braided-fluvial, and gypsiferous playa lithofacies. Two new, north-trending fault blocks (Sierra de las Uvas and Dona Ana Mountains) and complementary west-northwest-tilted half graben also developed during Rincon Valley time, with approximately 549 m of stratigraphic separation along the border fault of the Sierra de las Uvas block. In latest Miocene and early Pliocene time, following deposition of the Rincon Valley Formation, movement continued along the border faults of the Caballo Mountains, Dona Ana Mountains, and Sierra de las Uvas blocks, and large parts of the Hayner Ranch and Rincon Valley basins were segmented into smaller fault blocks and basins by movement along new, largely north-trending faults. Analysis of the Hayner Ranch and Rincon Valley Formations, along with previous studies of the early Oligocene Bell Top Formation and late Pliocene-early Pleistocene Camp Rice Formation, indicate that the traditional two-stage model for development of the southern Rio Grande rift should be abandoned in favor of at least four episodes of block faulting beginning 35 Ma ago. With the exception of
Google Earth Grand Tour Themes

Science.gov (United States)

De Paor, D. G.; Whitmeyer, S. J.; Bentley, C.; Dordevic, M. M.

2014-12-01

As part of an NSF TUES Type 3 project entitled "Google Earth for Onsite and Distance Education (GEODE)," we are assembling a "Grand Tour" of locations on Earth and other terrestrial bodies that every geoscience student should know about and visit at least in virtual reality. Based on feedback from colleagues at previous meetings, we have identified nine Grand Tour themes: "Plates and Plumes," "Rocks and Regions," "Geology Through Time," "The Mapping Challenge*," "U.S. National Parks*," "The Magical Mystery Tour*," "Resources and Hazards," "Planets and Moons," and "Top of the Pops." Themes marked with an asterisk are most developed at this stage and will be demonstrated in real time. The Mapping Challenge invites students to trace geological contacts, measure bedding strike and dip and the plunge, trend, and facing of a fold. There is an advanced tool for modeling periclinal folds. The challenge is presented in a game-like format with an emphasis on puzzle-solving that will appeal to students regardless of gender. For the tour of U.S. national parks, we divided the most geologically important parks into four groups—Western Pacific, West Coast, Rockies, and East Coast. We are combining our own team's GigaPan imagery with imagery already available on the Internet. There is a great deal of imagery just waiting to be annotated for geological education purposes. The Magical Mystery Tour takes students to Google Streetview locations selected by instructors. Students are presented with questions or tasks and are given automatic feedback. Other themes are under development. Within each theme, we are crowd-sourcing contributions from colleagues and inviting colleagues to vote for or against proposed locations and student interactions. The GEODE team includes the authors and: Heather Almquist, Stephen Burgin, Cinzia Cervato, Gene Cooper, Paul Karabinos, Terry Pavlis, Jen Piatek, Bill Richards, Jeff Ryan, Ron Schott, Kristen St. John, and Barb Tewksbury.

Grand Mal Seizure

Science.gov (United States)

... grand mal seizures include: A family history of seizure disorders Any injury to the brain from trauma, a ... the risk of birth defects. If you have epilepsy and plan to become pregnant, work with your ...
Grand-Bassam

African Journals Online (AJOL)

Geo

l'estuaire du fleuve Comoé (Grand-Bassam, Côte d'Ivoire). Kouassi Laurent ADOPO1*, Apie Colette AKOBE1, Etche Mireille AMANI2,. Sylvain MONDE3 et Kouamé AKA3. (1)Laboratoire de Géologie Marine, Sédimentologie et Environnement, Centre de Recherche en Ecologie,. Université Felix Houphouet Boigny Abidjan, ...
A Grande Reportagem no contexto informativo SIC

OpenAIRE

Colaço, Vanessa Alexandra Francisco

2014-01-01

Os telespectadores querem ver grandes reportagens? Como evoluíram as audiências da Grande Reportagem SIC? É este o produto premium da estação? Terá este formato um investimento e continuidade garantidas? Estas são algumas das questões formuladas e às quais se procurou dar resposta neste Relatório de Estágio. Neste trabalho traça-se o perfil do programa Grande Reportagem SIC, clarificando a linha editorial que lhe serviu de base, procurando perceber as suas dinâmicas e passando em revista mome...
Supersymmetry and supergravity: Phenomenology and grand unification

International Nuclear Information System (INIS)

Arnowitt, R.; Nath, P.

1993-01-01

A survey is given of supersymmetry and supergravity and their phenomenology. Some of the topics discussed are the basic ideas of global supersymmetry, the minimal supersymmetric Standard Model (MSSM) and its phenomenology, the basic ideas of local supersymmetry (supergravity), grand unification, supersymmetry breaking in supergravity grand unified models, radiative breaking of SU(2) x U(1), proton decay, cosmological constraints, and predictions of supergravity grand unified models. While the number of detailed derivations are necessarily limited, a sufficient number of results are given so that a reader can get a working knowledge of this field
The Colorado River and its deposits downstream from Grand Canyon in Arizona, California, and Nevada

Science.gov (United States)

Crow, Ryan S.; Block, Debra L.; Felger, Tracey J.; House, P. Kyle; Pearthree, Philip A.; Gootee, Brian F.; Youberg, Ann M.; Howard, Keith A.; Beard, L. Sue

2018-02-05

Understanding the evolution of the Colorado River system has direct implications for (1) the processes and timing of continental-scale river system integration, (2) the formation of iconic landscapes like those in and around Grand Canyon, and (3) the availability of groundwater resources. Spatial patterns in the position and type of Colorado River deposits, only discernible through geologic mapping, can be used to test models related to Colorado River evolution. This is particularly true downstream from Grand Canyon where ancestral Colorado River deposits are well-exposed. We are principally interested in (1) regional patterns in the minimum and maximum elevation of each depositional unit, which are affected by depositional mechanism and postdepositional deformation; and (2) the volume of each unit, which reflects regional changes in erosion, transport efficiency, and accommodation space. The volume of Colorado River deposits below Grand Canyon has implications for groundwater resources, as the primary regional aquifer there is composed of those deposits. To this end, we are presently mapping Colorado River deposits and compiling and updating older mapping. This preliminary data release shows the current status of our mapping and compilation efforts. We plan to update it at regular intervals in conjunction with ongoing mapping.
Proton hexality in local grand unification

Energy Technology Data Exchange (ETDEWEB)

Foerste, Stefan; Nilles, Hans Peter [Bonn Univ. (Germany). Bethe Center for Theoretical Physics and Physikalisches Institut; Ramos-Sanchez, Saul [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Vaudrevange, Patrick K.S. [Muenchen Univ. (Germany). Arnold Sommerfeld Center for Theoretical Physics

2010-07-15

Proton hexality is a discrete symmetry that avoids the problem of too fast proton decay in the supersymmetric extension of the standard model. Unfortunately it is inconsistent with conventional grand unification. We show that proton hexality can be incorporated in the scheme of ''Local Grand Unification'' discussed in the framework of model building in (heterotic) string theory. (orig.)
Las cinco grandes dimensiones de la personalidad

Directory of Open Access Journals (Sweden)

Jan ter Laak

1996-12-01

Full Text Available Este artículo revisa las distintas posiciones teóricas sobre las cinco grandes dimensiones de la personalidad, mostrando las semejanzas y diferencias entre las posturas teóricas. Esta contribución presenta lo siguiente: (a la génesis del contenido y la estructura de las cinco dimensiones; (b la fortaleza de las cinco dimensiones; (e la relación de las cinco grandes dimensiones con otros constructos de personalidad; (d discute el valor predictivo de las puntuaciones del perfil de las cinco dimensiones para criterios pertinentes; (e analiza el estatus teórico de las cinco dimensiones; (f discute críticas históricas sobre las cinco grandes dimensiones y se formulan respuestas a estas críticas; (g hace conjeturas para el futuro de las cinco grandes dimensiones; y (h concluye con algunas conclusiones y comentarios.
Grand Canyon Monitoring and Research Center

Science.gov (United States)

Hamill, John F.

2009-01-01

The Grand Canyon of the Colorado River, one of the world's most spectacular gorges, is a premier U.S. National Park and a World Heritage Site. The canyon supports a diverse array of distinctive plants and animals and contains cultural resources significant to the region's Native Americans. About 15 miles upstream of Grand Canyon National Park sits Glen Canyon Dam, completed in 1963, which created Lake Powell. The dam provides hydroelectric power for 200 wholesale customers in six western States, but it has also altered the Colorado River's flow, temperature, and sediment-carrying capacity. Over time this has resulted in beach erosion, invasion and expansion of nonnative species, and losses of native fish. Public concern about the effects of Glen Canyon Dam operations prompted the passage of the Grand Canyon Protection Act of 1992, which directs the Secretary of the Interior to operate the dam 'to protect, mitigate adverse impacts to, and improve values for which Grand Canyon National Park and Glen Canyon National Recreation Area were established...' This legislation also required the creation of a long-term monitoring and research program to provide information that could inform decisions related to dam operations and protection of downstream resources.
Haze in the Grand Canyon: An evaluation of the Winter Haze Intensive Tracer Experiment

Energy Technology Data Exchange (ETDEWEB)

1990-10-01

The Grand Canyon is one of the most spectacular natural sights on earth. Approximately 4 million visitors travel to Grand Canyon National Park (GCNP) each year to enjoy its majestic geological formations and intensely colored views. However, visibility in GCNP can be impaired by small increases in concentrations of fine suspended particles that scatter and absorb light; the resulting visibility degradation is perceived as haze. Sulfate particles are a major factor in visibility impairment at Grand Canyon in summer and winter. Many wintertime hazes at GCNP are believed to result from the accumulation of emissions from local sources during conditions of air stagnation, which occur more frequently in winter than in summer. In January and February 1987, the National Park Service (NPS) carried out a large-scale experiment known as the Winter Haze Intensive Tracer Experiment (WHITEX) to investigate the causes of wintertime haze in the region of GCNP and Canyonlands National Park. The overall objective of WHITEX was to assess the feasibility of attributing visibility impairment in specific geographic regions to emissions from a single point source. The experiment called for the injection of a tracer, deuterated methane (CD{sub 4}), into one of the stacks of the Navajo Generating Station (NGS), a major coal-fired power plant located 25 km from the GCNP boundary and 110 km northeast of Grand Canyon Village. A network of field stations was established in the vicinity -- mostly to the northeast of GCNP and NGS -- to measure CD{sub 4} concentrations, atmospheric aerosol and optical properties, and other chemical and physical attributes. 19 refs., 3 figs.
Pre-cambrian geochronology in Rio Grande do Norte, Brazil

International Nuclear Information System (INIS)

Galindo, A.C.

1981-08-01

The Precambrian region polyciclic caracter, in the Rio Grande do Norte State has make difficulties to its geochronological and geological studies. Four importants tectonometamorphic occurences identified dissimulate the original isotopic composition of the rocks. Is much defined the presence of three geochronological events wich left vestiges in the differents Serido litological units. The first event is related with Jequie cicle (2,7 b.y) and related with the Caico Group rocks. The second important event define the Transamazonic cicle (2.1 b.y). The third is correlated with Brazilian Cicle, when occurred the granitoids and pegmatites bodies formation. This third event was the last in this region and affect the other units too. (C.D.G.) [pt
Next Generation Innovation Policy and Grand Challenges

NARCIS (Netherlands)

Kuhlmann, Stefan; Rip, Arie

2018-01-01

The paper explores transformative ways to address Grand Challenges, while locating them in a broader diagnosis of ongoing changes. Coping with Grand Challenges is a challenge in its own right, for policy as well as for science, technology, and innovation actors. The paper presents building blocks
Revealing fate of CO2 leakage pathways in the Little Grand Wash Fault, Green River, Utah

Science.gov (United States)

Han, K.; Han, W. S.; Watson, Z. T.; Guyant, E.; Park, E.

2015-12-01

To assure long-term security of geologic carbon sequestration site, evaluation of natural CO2 leakage should be preceded before actual construction of the CO2 facility by comparing natural and artificial reservoir systems. The Little Grand Wash fault is located at the northwestern margin of the Paradox Basin and roles on a bypass of deep subsurface CO2 and brine water onto the surface, e.g., cold water geyser, CO2 spring, and surface travertine deposits. CO2 degassed out from brine at the Little Grand Wash fault zone may react with formation water and minerals while migrating through the fault conduit. Leakage observed by soil CO2 flux on the fault trace shows this ongoing transition of CO2, from supersaturated condition in deep subsurface to shallow surface equilibria. The present study aims to investigate the reactions induced by changes in hydrological and mineralogical factors inside of the fault zone. The methodology to develop site-specific geochemical model of the Little Grand Wash Fault combines calculated mechanical movements of each fluid end-member, along with chemical reactions among fluid, free CO2 gas and rock formations. Reactive transport modeling was conducted to simulate these property changes inside of the fault zone, using chemistry dataset based on 86 effluent samples of CO2 geysers, springs and in situ formation water from Entrada, Carmel, and Navajo Sandstone. Meanwhile, one- and two-dimensional models were separately developed to delineate features mentioned above. The results from the 3000-year simulation showed an appearance of self-sealing processes near the surface of the fault conduit. By tracking physicochemical changes at the depth of 15 m on the 2-dimensional model, significant changes induced by fluid mixing were indicated. Calculated rates of precipitation for calcite, illite, and pyrite showed increase in 2.6 x 10-4, 2.25 x 10-5, and 3.0 x 10-6 in mineral volume fraction at the depth of 15m, respectively. Concurrently
Distribución espacial de Ephemeroptera, Plecoptera, Trichoptera y Coleoptera (Insecta en una quebrada de primer orden, bosque montano, Junín, Perú

Directory of Open Access Journals (Sweden)

Janet Isabel Sajamí Reymundo

2016-08-01

Full Text Available El objetivo de éste estudio fue estudiar la composición y distribución espacial de cuatro órdenes de insectos acuáticos Ephemeroptera, Plecoptera, Trichoptera y Coleoptera (EPTC, en una quebrada de primer orden, Chanchamayo, Perú. Se realizaron colectas bimensuales desde marzo del 2013 a enero del 2014 en cuatro microhábitats lóticos: piedra, grava, musgo y hojas retenidas en la corriente. Fueron colectados un total de 7825 individuos agrupados en 51 géneros distribuidos en 27 familias de EPTC. El microhábitat de hoja retenida en los rápidos presentó la mayor abundancia, riqueza y diversidad de EPTC. Los géneros más representativos en términos de abundancia fueron Farrodes (10.35%, Phylloicus (10.01% y Heterelmis (6.07%. La familia Elmidae fue la más diversa con 11 géneros. Las pruebas no parametricas de Kruskall-Wallis para riqueza, abundancia, diversidad y equidad determinaron diferencias significativas (p< 0.05 entre los micro hábitat estudiados. El análisis de ordenamiento no paramétrico de escalamiento multidimensional nMDS y el análisis de similaridad ANOSIM, evidenciaron diferencias claras entre las muestras de micro hábitats.
28 milliards d’euros, c’est grand comment ?

OpenAIRE

Ozer, Pierre; Salmon, Marc; Theunissen, Yannick

2009-01-01

J’ouvre mon quotidien. Fortis : 28 milliards d’euros de pertes en 2008. Ma fille de sept ans qui commence à lire et pose sans cesse des questions sur tout me lance : « Dis-moi, papa : 28 milliards d’euros, c’est grand comment ? ». Grande question… Je réfléchis et tente de trouver une parade parlante pour un enfant qui, in fine, se pose les mêmes questions que les grandes personnes.
Environmental management to preserve the tourist potential on the basis of hydric supply of alluvial soil terracing, between Quebrada Seca, La Nuarque and the Cauca River, Municipality of Olaya, Department of Antioquia

International Nuclear Information System (INIS)

Henao, Leonardo de Jesus; Obregon R, Gerardo

2007-01-01

It is predict changes on the soils uses at the tourist zone of the right margin of Cauca river, Olaya village, department of Antioquia, republic of Colombia: La Florida and Quebrada Seca sectors, this is the consequence of the growth of tourist population generated by the opening of the Tunel de Occidente. The study area is between the streams: La Seca, La Nuarque and the Cauca river, it has 1367 hectares. The work contemplates to carry out of a hidric balance, the projection of population and its hidric requires to the year 2016, on the basis of the previous ideas it was defined: the offer-demand relation at the year 2016 and the instructive to the environmental management for the conservation, optimization and use of the hidric resources and the environmental arrangement of the territory, reasonable to the density of houses in agreement with the soil's potentials
National Uranium Resource Evaluation. Bibliographic index of Grand Junction office uranium reports

Energy Technology Data Exchange (ETDEWEB)

Johnson, J.B.

1981-05-01

In October 1978, Mesa College entered into subcontract with Bendix Field Engineering Corporation (BFEC) to prepare a bibliographic index of the uranium raw materials reports issued by the Grand Junction Office of the US Department of Energy (DOE). Bendix, prime contractor to the Grand Junction Office, operates the Technical Library at the DOE facility. Since the early 1950s, approximately 2700 reports have been issued by the Grand Junction Office. These reports were the results of uranium investigations conducted by federal agencies and their subcontractors. The majority of the reports cover geology, mineralogy, and metallurgy of uranium and/or thorium. No single, complete list of these reports existed. The purpose of this subcontract was to compile a comprehensive index to these reports. The Mesa College geology faculty worked with the BFEC and DOE staffs to develop the format for the index. Undergraduate geology students from Mesa compiled a master record sheet for each report. All reports issued up to January 1, 1979 were included in the bibliography. The bibliography is in preliminary, unedited form. It is being open-filed at this time, on microfiche, to make the information available to the public on a timely basis. The bibliography is divided into a master record list arranged in alpha-numeric order by report identification number, with separate indices arranged by title, author, state and county, 1/sup 0/ x 2/sup 0/ NTMS quadrangle, key words, and exploration area.
National Uranium Resource Evaluation. Bibliographic index of Grand Junction office uranium reports

International Nuclear Information System (INIS)

Johnson, J.B.

1981-05-01

In October 1978, Mesa College entered into subcontract with Bendix Field Engineering Corporation (BFEC) to prepare a bibliographic index of the uranium raw materials reports issued by the Grand Junction Office of the US Department of Energy (DOE). Bendix, prime contractor to the Grand Junction Office, operates the Technical Library at the DOE facility. Since the early 1950s, approximately 2700 reports have been issued by the Grand Junction Office. These reports were the results of uranium investigations conducted by federal agencies and their subcontractors. The majority of the reports cover geology, mineralogy, and metallurgy of uranium and/or thorium. No single, complete list of these reports existed. The purpose of this subcontract was to compile a comprehensive index to these reports. The Mesa College geology faculty worked with the BFEC and DOE staffs to develop the format for the index. Undergraduate geology students from Mesa compiled a master record sheet for each report. All reports issued up to January 1, 1979 were included in the bibliography. The bibliography is in preliminary, unedited form. It is being open-filed at this time, on microfiche, to make the information available to the public on a timely basis. The bibliography is divided into a master record list arranged in alpha-numeric order by report identification number, with separate indices arranged by title, author, state and county, 1 0 x 2 0 NTMS quadrangle, key words, and exploration area
Vigilando la Calidad del Agua de los Grandes Rios de la Nacion: El Programa NASQAN del Rio Grande (Rio Bravo del Norte)

Science.gov (United States)

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

1998-01-01

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

Science.gov (United States)

Gellis, A.

1993-01-01

In the two main tributaries that enter Lago Loiza, Rio Grande de Loiza and Rio Gurabo, 99 600 tonnes of suspended sediment was transported by 58.2??106 m3 of runoff in a 48 h period. The storm-average suspended-sediment concentration in the Rio Grande de Loiza for Hurricane Hugo was 2290 mgl-1, the second lowest for the 12 storms that have been monitored at this site. In Rio Gurabo the storm-average suspended-sediment concentration was 1420 mg l -1, the sixth lowest recorded out of 15 monitored storms. In Quebrada Salvatierra, a small tributary to Rio Grande de Loiza, suspended-sediment concentrations were as low as 33 mg l-1 during peak runoff of 20m3s-1. Normally the suspended-sediment concentrations at this discharge are 300 mg l-1. Hurricane force winds seem to be the most important factor contributing to the lower than expected suspended-sediment loads. High winds caused vegetation and debris to be dislodged and displaced. Debris accumulated on hillslopes and in small channels, blocked bridges and formed debris dams. These dams caused local backwater effects that reduced stream velocities and decreased suspended-sediment loads. -from Author
Grandes cocinas

Directory of Open Access Journals (Sweden)

García de Castro, Emilio

1957-11-01

Full Text Available Se describen en este artículo una serie de aparatos para grandes cocinas, vistos por los autores durante un rápido viaje por Alemania. Aprovechando los datos obtenidos se analizan brevemente las necesidades de una gran cocina moderna, comentando los planos de las instalaciones en varios hoteles o instituciones de todo el mundo. La mayoría de la información.

Grand unification theory and technicolor

International Nuclear Information System (INIS)

Rubakov, V.A.; Shaposhnikov, M.E.

1983-01-01

The lecture course can be considered as introduction to the problems concerning grand unification models. The course is incomplete. Such problems as CP-violations in strong interactions and the problem of gravitational interaction inclusion in the scheme of grand unification theory are not touched upon. Models of early unification, in which strong, weak and electromagnetic interactions are compared according to the ''strength'' at energies of about 10 5 -10 6 GeV, are not discussed. Models with horizontal symmetry, considering different generations of quarks and leptons from one viewpoint, are not analyzed. Cosmological applications of supersymmetric unified theories are not considered. Certain problems of standard elementary particle theory, philosophy of the great unification, general properties of the grand unification models and the main principles of the construction of models: the SU(5) model, models on the SO(10) groups, have been considered. The problem of supersymmetric unification hierarchies, supersymmetric generalization of the minimum SU(5) model, supersymmetry violation and the problem of hierarchies, phenomenology of the o.rand unification models, cosmological application and technicolour, are discussed
Results from KASCADE–Grande

International Nuclear Information System (INIS)

Bertaina, M.; Apel, W.D.; Arteaga-Velázquez, J.C.; Bekk, K.; Blümer, J.; Bozdog, H.; Brancus, I.M.; Buchholz, P.; Cantoni, E.; Chiavassa, A.; Cossavella, F.

2012-01-01

The KASCADE–Grande experiment, located at Karlsruhe Institute of Technology (Germany) is a multi-component extensive air-shower experiment devoted to the study of cosmic rays and their interactions at primary energies 10 14 –10 18 eV. Main goals of the experiment are the measurement of the all-particle energy spectrum and mass composition in the 10 16 –10 18 eV range by sampling charged (N ch ) and muon (N μ ) components of the air shower. The method to derive the energy spectrum and its uncertainties, as well as the implications of the obtained result, is discussed. An overview of the analyses performed by KASCADE–Grande to derive the mass composition of the measured high-energy comic rays is presented as well.
Grand Hotel prijutil hudozhnikov

Index Scriptorium Estoniae

2004-01-01

Raadioajakirjanik Lea Veelmaa lindistas "Kunstikanali" 2004. a. esimese saate Grand Hotel Viljandis. Saatekülaliseks oli maalikunstnik Andres Tolts. Toltsi kaheksa akrüülmaali on eksponeeritud hotelli fuajees ja restoranis
Palynology of carcinolites and limestones from the Baunilha Grande Ecofacies of the Pirabas Formation (Miocene of Pará state, northeastern Brazil)

Science.gov (United States)

Antonioli, Luzia; de Araújo Távora, Vladimir; Dino, Rodolfo

2015-10-01

The Pirabas Formation records important transgressive/regressive marine events in northern Brazil during the Miocene. Here, we present the results of a palynological analysis of four samples from finely stratified gray limestone and associated carbonate concretions bearing decapod crustacean remains. These sampled strata are representatives of the Baunilha Grande Ecofacies, and our analysis enhances the knowledge of local biostratigraphy and paleoecology. The palynoflora is dominated by taxa typical of Neogene tropical areas, such as Zonocostites ramonae (the most common species), together with Retitricolpites and Retitricolporites genera. Commonly represented are the smooth and apiculate trilete/monolete spores (Polypodiisporites, Verrucosisporites, Magnastriatites, and Deltoidospora), in conjunction with some freshwater algae (Ovoidites and Botryococcus). Gymnosperm pollen grains were absent. Marine microplankton (dinoflagellate cysts, acritarchs and foraminiferal test linings) are scarce, although present in all samples. The presence of the index species, Malvacipolloides maristellae and Pachydermites diederixii, co-occurring with Zonocostites ramonae and Lanagiopollis crassa, suggests that these sediments and concretions belong to the "T-13 Malvacipolloides maristellae" palynozone (Jaramillo et al., 2011), considered as late-Early Miocene in age. Palynological and sedimentological evidence further points to a predominantly continental depositional environment with a weak marine influence, as indicated by the persistent presence of sparse dinoflagellate cysts, acritarchs and foraminiferal test linings, typical of a mangrove environment.
The GRANDE detector

International Nuclear Information System (INIS)

Adams, A.; Bond, R.; Coleman, L.; Rollefson, A.; Wold, D.; Bratton, C.B.; Gurr, H.; Kropp, W.; Nelson, M.; Price, L.R.; Reines, F.; Schultz, J.; Sobel, H.; Svoboda, R.; Yodh, G.; Burnett, T.; Chaloupka, V.; Wilkes, R.J.; Cherry, M.; Ellison, S.B.; Guzik, T.G.; Wefel, J.; Gaidos, J.; Loeffler, F.; Sembroski, G.; Wilson, C.; Goodman, J.; Haines, T.J.; Kielczewska, D.; Lane, C.; Steinberg, R.; Lieber, M.; Nagle, D.; Potter, M.; Tripp, R.

1990-01-01

In this paper we present a detector facility which meets the requirements outlined above for a next-generation instrument. GRANDE (Gamma Ray and Neutrino DEtector) is an imaging, water Cerenkov detector, which combines in one facility an extensive air shower array and a high-energy neutrino detector. (orig.)
Grand Fir Nutrient Management in the Inland Northwestern USA

Directory of Open Access Journals (Sweden)

Dennis R. Parent

2016-11-01

Full Text Available Grand fir (Abies grandis (Douglas ex D. Don Lindley is widely distributed in the moist forests of the Inland Northwest. It has high potential productivity, its growth being nearly equal to western white pine, the most productive species in the region. There are large standing volumes of grand fir in the region. Nutritionally, the species has higher foliage cation concentrations than associated conifers, especially potassium (K and calcium (Ca. In contrast, it has lower nitrogen (N foliage concentrations, which creates favorable nutrient balance on N-limited sites. Despite concentration differences, grand fir stores proportionally more nutrients per tree than associated species because of greater crown biomass. Although few fertilization trials have examined grand fir specifically, its response is inferred from its occurrence in many monitored mixed conifer stands. Fertilization trials including grand fir either as a major or minor component show that it has a strong diameter and height growth response ranging from 15% to 50% depending in part on site moisture availability and soil geology. Grand fir tends to have a longer response duration than other inland conifers. When executed concurrently with thinning, fertilization often increases the total response. Late rotation application of N provides solid investment returns in carefully selected stands. Although there are still challenges with the post-fertilization effects on tree mortality, grand fir will continue to be an important species with good economic values and beneficial responses to fertilization and nutrient management.
Grand unification and gravity - selected topics

International Nuclear Information System (INIS)

Zee, A.

1981-09-01

The material given here was presented in lectures delivered at the 4th Kyoto Summer Institute on Grand Unification and Related Topics. It consists of six sections. The sections are: the family problem, fermion mass hierarchy, maximal local symmetry, operator analysis of new physics, dynamically generated gravity, and Kaluza theory and grand unification. The last section contains a (hopefully) pedagogical introduction to Kaluza theory. For pedagogical completeness, several appendices reviewing some elementary notions of differential geometry have been added
Gamma ray and neutrino detector facility (GRANDE), Task C

International Nuclear Information System (INIS)

Sobel, H.W.; Yodh, G.B.

1991-08-01

GRANDE is an imaging, water Cerenkov detector, which combines in one facility an extensive air shower array and a high-energy neutrino detector. We proposed that the detector be constructed in phases, beginning with an active detector area of 31,000 m 2 (GRANDE-I) 2 and expanding to a final size of 100,000--150,00 m 2 . Some of the characteristics of GRANDE-I are discussed in this paper
Caracterización de la comunidad de macroinvertebrados de la Quebrada Paloblanco de la Cuenca del Río Otún (Risaralda, Colombia

Directory of Open Access Journals (Sweden)

Eleonora Bernal Pinilla

2006-07-01

Full Text Available Se realizó un estudio de las comunidades de macroinvertebrados presentes en la quebrada Paloblanco, ubicada en la cuenca del río Otún (Risaralda, Colombia. Los puntos de muestreo seleccionados corresponden a la cabecera y la zona cercana a la desembocadura en el río Otún, ambos con características geomorfológicas de corrientes de primer orden. En cada punto se colectaron los macroinvertebrados de las unidades funcionales hojarasca, epiliton, musgo y grava, junto con una muestra de deriva y fauna general (sin discriminar unidad funcional. Se encontraron 42 familias de Insecta, además de Acari, Annelida, Crustacea e Hirudinea. Igualmente se encontraron familias de presencia exclusiva en cada punto, mostrando diferencias en la composición de las comunidades. Los índices ecológicos empleados mostraron una mayor diversidad en punto bajo y diferencias entre algunas de las unidades funcionales, relacionados con el medio y los hábitos presentes. Para el análisis se tuvieron en cuenta los conceptos de continuo y zonación de los ríos. A pesar de tener condiciones de primer orden, existen variaciones a pequeña escala entre los puntos de muestreo, que están relacionadas con la intervención antrópica en la zona aledaña a punto bajo.
Results from KASCADE-Grande

Energy Technology Data Exchange (ETDEWEB)

Bertaina, M., E-mail: bertaina@to.infn.it [Dipartimento di Fisica Generale dell' Universita, Torino (Italy); Apel, W.D. [Institut fuer Kernphysik, KIT - Karlsruher Institut fuer Technologie (Germany); Arteaga-Velazquez, J.C. [Universidad Michoacana, Instituto de Fisica y Matematicas, Morelia (Mexico); Bekk, K. [Institut fuer Kernphysik, KIT - Karlsruher Institut fuer Technologie (Germany); Bluemer, J. [Institut fuer Kernphysik, KIT - Karlsruher Institut fuer Technologie (Germany); Institut fuer Experimentelle Kernphysik, KIT - Karlsruher Institut fuer Technologie (Germany); Bozdog, H. [Institut fuer Kernphysik, KIT - Karlsruher Institut fuer Technologie (Germany); Brancus, I.M. [National Institute of Physics and Nuclear Engineering, Bucharest (Romania); Buchholz, P. [Fachbereich Physik, Universitaet Siegen (Germany); Cantoni, E. [Dipartimento di Fisica Generale dell' Universita, Torino (Italy); Istituto di Fisica dello Spazio Interplanetario, INAF Torino (Italy); Chiavassa, A. [Dipartimento di Fisica Generale dell' Universita, Torino (Italy); Cossavella, F. [Institut fuer Experimentelle Kernphysik, KIT - Karlsruher Institut fuer Technologie (Germany); and others

2012-11-11

The KASCADE-Grande experiment, located at Karlsruhe Institute of Technology (Germany) is a multi-component extensive air-shower experiment devoted to the study of cosmic rays and their interactions at primary energies 10{sup 14}-10{sup 18} eV. Main goals of the experiment are the measurement of the all-particle energy spectrum and mass composition in the 10{sup 16}-10{sup 18} eV range by sampling charged (N{sub ch}) and muon (N{sub {mu}}) components of the air shower. The method to derive the energy spectrum and its uncertainties, as well as the implications of the obtained result, is discussed. An overview of the analyses performed by KASCADE-Grande to derive the mass composition of the measured high-energy comic rays is presented as well.
Caracterización morfométrica de la microcuenca de la quebrada los Andes, El Carmen de Viboral, Antioquia-Colombia Morphometrical characterization in los Andes watershed, El Carmen de Viboral, Antioquia-Colombia

Directory of Open Access Journals (Sweden)

Yimmy Montoya Moreno

2009-07-01

Full Text Available Se evaluaron algunas características morfométricas básicas en la microcuenca de la quebrada Los Andes en el departamento de Antioquia (Colombia. La microcuenca tiene un área pequeña (Some morphometric characteristic were evaluated in the watershed of creek Los Andes department of Antioquia (Colombia. The headwater has a small area (<20km² with main direction in the axis S-N, with an elevation range between 2.700 and 2.200 m. asl. It presents a network of drainage well structured, for which presents a time of concentration of the water over 5 hours. The watershed is of class Kc2 with a high slope and a system of drainage subdendritic. This research permitted to identify the uses of the soil, being the adequate use the one that presented greater percentage (55% and the use is recommended conservationist in general for all headwater.
The Role Of The «Grand Schools» And The «Grand Corps» As Recruitment Channels For French Ministers

Directory of Open Access Journals (Sweden)

I. A. Zarankin

2017-01-01

Full Text Available The recruitment of ministers among high-ranking officials, who studied in the «grand schools» and worked in the «grand corps», is one of the typical traits of the Fifth republic. This is a consequence of the traditional interpenetration of French administrative and political elites. However, there is no common view on the actual role of these institutions in the ministers’ recruitment. So, the objective of this paper is to clarify this issue. For this purpose we analyze career trajectories of French ministers from 1981 till 2016. The data on each government include shares of ministers, who passed through the «grand schools» and the «grand corps». The article shows that nowadays the number of ministers with such an experience has decreased. Most government members are professional politicians, who have significant electoral experience and occupy high-ranking party positions. Today there are political parties, not the «grand schools» and the «grand corps», that are the main channels of the ministers’ recruitment. The professionalization of politics and reinforcement of the role of parties in the French political system are the most crucial factors of this tendency. The transformation of gaullists into liberals and conduction of the liberal economic policy, instead of the dirigist one, also contributed to replacement of officials by representatives of the private sector. Despite the fact that political parties serve as a main channel of the ministers’ recruitment, they face internal problems. The future role of political parties in the recruitment will depend on their ability to deal with these challenges.
Environmental Audit of the Grand Junction Projects Office

Energy Technology Data Exchange (ETDEWEB)

1991-08-01

The Grand Junction Projects Office (GJPO) is located in Mesa County, Colorado, immediately south and west of the Grand Junction city limits. The US Atomic Energy Commission (AEC) established the Colorado Raw Materials Office at the present-day Grand Junction Projects Office in 1947, to aid in the development of a viable domestic uranium industry. Activities at the site included sampling uranium concentrate; pilot-plant milling research, including testing and processing of uranium ores; and operation of a uranium mill pilot plant from 1954 to 1958. The last shipment of uranium concentrate was sent from GJPO in January, 1975. Since that time the site has been utilized to support various DOE programs, such as the former National Uranium Resource Evaluation (NURE) Program, the Uranium Mill Tailings Remedial Action Project (UMTRAP), the Surplus Facilities Management Program (SFMP), and the Technical Measurements Center (TMC). All known contamination at GJPO is believed to be the result of the past uranium milling, analyses, and storage activities. Hazards associated with the wastes impounded at GJPO include surface and ground-water contamination and potential radon and gamma-radiation exposure. This report documents the results of the Baseline Environmental Audit conducted at Grand Junction Projects Office (GJPO) located in Grand Junction, Colorado. The Grand Junction Baseline Environmental Audit was conducted from May 28 to June 12, 1991, by the Office of Environmental Audit (EH-24). This Audit evaluated environmental programs and activities at GJPO, as well as GJPO activities at the State-Owned Temporary Repository. 4 figs., 12 tabs.
Environmental Audit of the Grand Junction Projects Office

International Nuclear Information System (INIS)

1991-08-01

The Grand Junction Projects Office (GJPO) is located in Mesa County, Colorado, immediately south and west of the Grand Junction city limits. The US Atomic Energy Commission (AEC) established the Colorado Raw Materials Office at the present-day Grand Junction Projects Office in 1947, to aid in the development of a viable domestic uranium industry. Activities at the site included sampling uranium concentrate; pilot-plant milling research, including testing and processing of uranium ores; and operation of a uranium mill pilot plant from 1954 to 1958. The last shipment of uranium concentrate was sent from GJPO in January, 1975. Since that time the site has been utilized to support various DOE programs, such as the former National Uranium Resource Evaluation (NURE) Program, the Uranium Mill Tailings Remedial Action Project (UMTRAP), the Surplus Facilities Management Program (SFMP), and the Technical Measurements Center (TMC). All known contamination at GJPO is believed to be the result of the past uranium milling, analyses, and storage activities. Hazards associated with the wastes impounded at GJPO include surface and ground-water contamination and potential radon and gamma-radiation exposure. This report documents the results of the Baseline Environmental Audit conducted at Grand Junction Projects Office (GJPO) located in Grand Junction, Colorado. The Grand Junction Baseline Environmental Audit was conducted from May 28 to June 12, 1991, by the Office of Environmental Audit (EH-24). This Audit evaluated environmental programs and activities at GJPO, as well as GJPO activities at the State-Owned Temporary Repository. 4 figs., 12 tabs
Reducing firing of an early pottery making kiln at Batán Grande, Peru: A Mössbauer study

Science.gov (United States)

Wagner, U.; Gebhard, R.; Häusler, W.; Hutzelmann, T.; Riederer, J.; Shimada, I.; Sosa, J.; Wagner, F. E.

1999-11-01

Material from field firing experiments using a 2,700-year old Formative kiln at Batán Grande, Peru, was studied by X-ray diffraction and Mössbauer spectroscopy. The experiments explore the technology involved in producing the gray and black reduced ware for which Cupisnique and other Formative ceramics are justly known. During firing, the iron-bearing compounds in clays undergo characteristic changes which depend on kiln temperature and atmosphere. These changes can be observed in the Mössbauer spectra. By comparing spectra of an appropriate clay fired in field experiments and in the laboratory with the spectra of ancient ceramics, a description of Formative firing techniques in a reducing environment is attempted.
Fetal Outcomes among Grand Multiparous and Multiparous Women ...

African Journals Online (AJOL)

Objective: To compare fetal outcomes among grand multiparous (para 5-9) and multiparous (para 2-4) delivering in Mulago hospital, Uganda. Design: Prospective cohort study. Setting: Mulago hospital, Uganda. Subjects: One hundred and fifty six grand multiparous and multiparous women were recruited on admission in ...
Asymptotically safe grand unification

Energy Technology Data Exchange (ETDEWEB)

Bajc, Borut [J. Stefan Institute,1000 Ljubljana (Slovenia); Sannino, Francesco [CP-Origins & the Danish IAS, University of Southern Denmark,Campusvej 55, DK-5230 Odense M (Denmark); Université de Lyon, France, Université Lyon 1, CNRS/IN2P3, UMR5822 IPNL,F-69622 Villeurbanne Cedex (France)

2016-12-28

Phenomenologically appealing supersymmetric grand unified theories have large gauge representations and thus are not asymptotically free. Their ultraviolet validity is limited by the appearance of a Landau pole well before the Planck scale. One could hope that these theories save themselves, before the inclusion of gravity, by generating an interacting ultraviolet fixed point, similar to the one recently discovered in non-supersymmetric gauge-Yukawa theories. Employing a-maximization, a-theorem, unitarity bounds, as well as positivity of other central charges we nonperturbatively rule out this possibility for a broad class of prime candidates of phenomenologically relevant supersymmetric grand unified theories. We also uncover candidates passing these tests, which have either exotic matter or contain one field decoupled from the superpotential. The latter class of theories contains a model with the minimal matter content required by phenomenology.
Research of the Rio Grande Ecosystem Management Program

Science.gov (United States)

Deborah M. Finch

2000-01-01

This paper describes the mission, objectives, and preliminary results of the Middle Rio Grande Ecosystem Management Research Program managed at the Rocky Mountain Research Station's Albuquerque laboratory. This program was initiated in 1994 to address growing pressures to effectively manage the limited resources of the middle Rio Grande Basin. The program is...
Propuesta metodológica para el análisis morfo-sedimentológico en cuencas altamente urbanizadas: Caso de estudio quebrada Doña María (Colombia A methodological proposal to morph-sedimentologic analysis at urban basins: Case study: Doña Maria's basin

Directory of Open Access Journals (Sweden)

Juan Esteban González

2010-01-01

Full Text Available En este artículo se presenta una propuesta metodológica para hacer el análisis de morfología fluvial y transporte de sedimentos para cuencas altamente intervenidas por la acción humana. En dicha metodología se proponen diferentes actividades las cuales permitirán hacer un análisis detallado de la morfología fluvial y los sedimentos en una cuenca. Entre las etapas que se proponen para implementar esta metodología se tienen: análisis en planta de la cuenca, análisis de los perfiles altimétricos de las principales corrientes, levantamiento de información en campo (aforos líquidos, sólidos y observaciones generales de la morfología de la cuenca y estimación de la carga y capacidad de carga de sedimentos en la quebrada principal. Una aplicación a la cuenca de la quebrada Doña María (en el Área Metropolitana del Valle de Aburrá, Colombia es presentada.This paper shows a methodological proposal to carry out river morphology analysis and sediment transport for urban basins highly intervened by human actions. In this methodology, different activities that will allow doing a detailed analysis for the river morphology and sediment transport in the basin are proposed. Among the steps proposed to implement this methodology, there are: analysis in plant of little basin, altitude profiles analysis of the main sub-basins, field measures (measures of liquid and solid discharge and general observations of the basin morphology, and estimations of sediments load and bed load capacity in the stream. An application to basin of Doña María is showed.
Grand Prix Eurovision: Eine Fankultur im Medienzeitalter

Directory of Open Access Journals (Sweden)

Heinz Moser

2017-06-01

Full Text Available Der Grand Prix Eurovision ist seit Jahrzehnten eine der bekanntesten Unterhaltungssendungen im europäischen Raum. Dennoch erregte es Verwunderung, wenn der Schreibende Bekannten darüber berichtete, daß dies ein Forschungsgegenstand sei. Wurde von Interviews mit Grand Prix-Fans erzählt, so fielen schnell Aussagen wie: „Wie kann man sich nur für so etwas Abseitiges und Triviales wie den Grand Prix interessieren“. Dennoch bin ich der Meinung, daß Fankulturen für die entstehende Mediengesellschaft ein nicht unwichtiges Forschungsthema darstellen. Zwar geht es nicht um eine medienpädagogische Fragestellung im engeren Sinne; die Fans des Grand Prix Eurovision sind dem Jugendalter längst entwachsen. Dennoch handelt es sich bei Fangemeinschaften um Phänomene, die im Rahmen von Jugend- und Kinderkulturen von besonderer Relevanz sind. So meint Winter (1997, daß jugendliche Fanwelten eine bedeutende Rolle als Kristallisationspunkte kultureller Differenzierung spielen: ,Die Zugehörigkeit zu einer Fan weit ist Teil der jugendlichen Lebensbewältigung in der Postmoderne, denn in der Gemeinschaft der Fans können Jugendliche emotionale Allianzen eingehen, außeralltäglichen Beschäftigungen nachgehen, expressive Identitätsmuster gemeinschaftlich realisieren und sich mit ihrer Lebenssituation als Heranwachsende auseinandersetzen“ (Winter 1997, S. 51f..

Hosting an eConference: Interactive video conference grand rounds between two institutions

Directory of Open Access Journals (Sweden)

Jeffrey Rixe

2018-01-01

Full Text Available Audience: The eConference is an interactive video conference grand rounds innovation to augment the didactic curriculum provided for medical students, interns, residents, fellows, and attending physicians. Introduction: Formal education during emergency medicine (EM training has historically emphasized aspects of humanism and constructivism; the former through self-directed reading in books and journals, the latter through the content and discussion during resident didactics.1 However, some studies suggest that the current generation of EM learners are increasingly using digital and internet technologies to connect with online peer networks, a phenomenon known as connectivism.2 As such, contemporary EM learners are increasingly utilizing social media and Free Open Access Medical Education (FOAM to supplement traditional learning resources. The eConference was developed to be an interactive, virtual grand rounds that marries the merits of constructivism with connectivism; a new format of EM didactics that goes beyond the “typical lecture” model to incorporate the changing landscape in technology and medical education by combining classroom teaching at multiple institutions alongside digital learning tools. This manuscript outlines how to plan and execute a joint video conference with another institution. Objectives: Our objectives were to create and implement a novel virtual conference format through the integration of social media tools which allows for interdisciplinary and multi-site participation to enhance EM resident education. We wish to outline the steps required to reproduce this innovative session and share lessons learned. Conclusion: We designed and executed a multi-centered, novel form of virtual conference into the EM residency curriculum at two participating institutions. The virtual conference took place during a routine conference day for both programs, an hour in duration. The format utilized a hybrid of live and virtual
Perfluoroalkyl substances in waters along the Grand Canal, China.

Science.gov (United States)

Piao, H T; Jiao, X C; Gai, N; Chen, S; Lu, G H; Yin, X C; Yamazaki, E; Yamashita, N; Tan, K Y; Yang, Y L; Pan, J

2017-07-01

The Grand Canal, also known as the Beijing-Hangzhou Grand Canal, is a UNESCO World Heritage Site and the longest canal in the world. It is an important trunk line of the South-to-North Water Diversion Project in China. The contamination status and spatial distributions of perfluoroalky substances (PFASs) in waters of the Grand Canal were investigated. The total concentrations of PFASs (∑PFASs) range from 7.8 ng/L to 218.0 ng/L, with high ∑PFASs occurring in the southern part of the Grand Canal which is located in a highly urbanized and economically developed region. The dominance of PFOA showed a decreasing trend toward north while shorter chain homologue proportions increased in the northern part of the Canal which mainly traverses underdeveloped and rural areas in Eastern China. Positive correlations were observed between ∑PFASs and the population density as well as GDP per capita. Intersection with large rivers may affect the contamination levels and composition of PFASs in the water of the Grand Canal near the intersection sites. Copyright © 2017 Elsevier Ltd. All rights reserved.
Proton decay in grand unified theories

International Nuclear Information System (INIS)

Lucha, W.

1984-01-01

Interactions which violate the conservation of baryon and lepton number represent an intrinsic part of all grand unified theories (GUTs) of strong and electroweak interactions. These new interactions - predicted within the framework of GUTs - generate B and L violating four-fermion interactions via the exchange of superheavy particles which cannot be ascribed a well-defined baryon or lepton number. The effective coupling constant of these four-fermion interactions might be large enough to make the proton decay detectable by the present generation of experiments. In this review the basic concepts of conventional as well as supersymmetric GUTs relevant for proton decay are sketched. The baryon number violating sector of grand unified theories is discussed in more detail. Special emphasis is laid on the various selection rules arising as consequences of low-energy gauge invariance and supersymmetry for proton decay. These selection rules already determine the coarse pattern of the resulting decay modes and branching ratios without any reference to or detailed knowledge of the underlying grand unified theory. Finally the numerous theoretical predictions are summarized and confronted with experiment. (Author)
Democracy and "Grand" Corruption.

Science.gov (United States)

Rose-Ackerman, Susan

1996-01-01

Defines "grand" corruption as that occurring at the higher levels of a political system and involving large sums of money. Discusses the impact and incentives for this level of corruption as well as various government responses. Identifies multinational corporations as the major malefactors. (MJP)
The Tunas Formation (Permian) in the Sierras Australes foldbelt, east central Argentina: evidence for syntectonic sedimentation in a foreland basin

Science.gov (United States)

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

1995-04-01

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

International Nuclear Information System (INIS)

Wilson, C.L.; Bratton, C.B.; Gurr, J.; Kropp, W.; Nelson, M.; Sobel, H.; Svoboda, R.; Yodh, G.; Burnett, T.; Chaloupka, V.; Wilkes, R.J.; Cherry, M.; Ellison, S.B.; Guzik, T.G.; Wefel, J.; Gaidos, J.; Loeffler, F.; Sembroski, G.; Goodman, J.; Haines, T.J.; Kielczewska, D.; Lane, C.; Steinberg, R.; Lieber, M.; Nagle, D.; Potter, M.; Tripp, R.

1990-01-01

A brief description of the Gamma Ray And Neutrino Detector Experiment (GRANDE) is presented. The detector elements and electronics are described. The trigger logic for the array is then examined. The triggers for the Gamma Ray and the Neutrino portions of the array are treated separately. (orig.)
LA GRANDE DESCENTE

CERN Multimedia

The ﬁrst endcap disc of CMS being lowered slowly and carefully 100 m underground into the experimental cavern. The disc is one of 15 large pieces to make the grand descent. The uniquely shaped slice, 16 m high, about 50 cm thick weighs 400 tonnes. The two HF that were lowered earlier in November can also be seen in the foreground and background.
Flocculent and grand design spiral arm structure in cluster galaxies

International Nuclear Information System (INIS)

Elmegreen, D.M.

1982-01-01

A total of 829 spiral galaxies in 22 clusters having redshifts between z = 0.02 and 0.06 were classified according to the appearance of their spiral arm structures. The fraction of galaxies that have a grand design spiral structure was found to be higher among barred galaxies than among non-barred galaxies (at z = 0.02, 95 per cent of strongly barred galaxies have a grand design, compared with 67 per cent of non-barred or weakly barred galaxies). Cluster galaxies and distant non-cluster galaxies have the same fraction of grand design galaxies when resolution effects are considered. The grand design fraction among cluster galaxies is also similar to the fraction observed among nearby galaxies in binary systems and in groups. (author)
Geology and geologic history of the Moscow-Pullman basin, Idaho and Washington, from late Grande Ronde to late Saddle Mountains time

Science.gov (United States)

Bush, John H; Garwood, Dean L; Dunlap, Pamela

2016-01-01

The Moscow-Pullman basin, located on the eastern margin of the Columbia River flood basalt province, consists of a subsurface mosaic of interlayered Miocene sediments and lava flows of the Imnaha, Grande Ronde, Wanapum, and Saddle Mountains Basalts of the Columbia River Basalt Group. This sequence is ~1800 ft (550 m) thick in the east around Moscow, Idaho, and exceeds 2300 ft (700 m) in the west at Pullman, Washington. Most flows entered from the west into a topographic low, partially surrounded by steep mountainous terrain. These flows caused a rapid rise in base level and deposition of immature sediments. This field guide focuses on the upper Grande Ronde Basalt, Wanapum Basalt, and sediments of the Latah Formation.Late Grande Ronde flows terminated midway into the basin to begin the formation of a topographic high that now separates a thick sediment wedge of the Vantage Member to the east of the high from a thin layer to the west. Disrupted by lava flows, streams were pushed from a west-flowing direction to a north-northwest orientation and drained the basin through a gap between steptoes toward Palouse, Washington. Emplacement of the Roza flow of the Wanapum Basalt against the western side of the topographic high was instrumental in this process, plugging west-flowing drainages and increasing deposition of Vantage sediments east of the high. The overlying basalt of Lolo covered both the Roza flow and Vantage sediments, blocking all drainages, and was in turn covered by sediments interlayered with local Saddle Mountains Basalt flows. Reestablishment of west-flowing drainages has been slow.The uppermost Grande Ronde, the Vantage, and the Wanapum contain what is known as the upper aquifer. The water supply is controlled, in part, by thickness, composition, and distribution of the Vantage sediments. A buried channel of the Vantage likely connects the upper aquifer to Palouse, Washington, outside the basin. This field guide locates outcrops; relates them to
Cassini's Grand Finale Science Highlights

Science.gov (United States)

Spilker, Linda

2017-10-01

After 13 years in orbit, the Cassini-Huygens Mission to Saturn ended in a science-rich blaze of glory. Cassini returned its final bits of unique science data on September 15, 2017, as it plunged into Saturn's atmosphere satisfying planetary protection requirements. Cassini's Grand Finale covered a period of roughly five months and ended with the first time exploration of the region between the rings and planet.The final close flyby of Titan in late April 2017 propelled Cassini across Saturn’s main rings and into its Grand Finale orbits; 22 orbits that repeatedly dove between Saturn’s innermost rings and upper atmosphere making Cassini the first spacecraft to explore this region. The last orbit turned the spacecraft into the first Saturn upper atmospheric probe.The Grand Finale orbits provided highest resolution observations of both the rings and Saturn, and in-situ sampling of the ring particle composition, Saturn's atmosphere, plasma, and innermost radiation belts. The gravitational field was measured to unprecedented accuracy, providing information on the interior structure of the planet, winds in the deeper atmosphere, and mass of the rings. The magnetic field provided insight into the physical nature of the magnetic dynamo and structure of the internal magnetic field. The ion and neutral mass spectrometer sampled the upper atmosphere for molecules that escape the atmosphere in addition to molecules originating from the rings. The cosmic dust analyzer directly sampled the composition from different parts of the main rings for the first time. Fields and particles instruments directly measured the plasma environment between the rings and planet.Science highlights and new mysteries gleaned to date from the Grand Finale orbits will be discussed.The research described in this paper was carried out in part at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. Copyright 2017
Meliponiculture in Rio Grande do Norte

Directory of Open Access Journals (Sweden)

Ulysses Madureira Maia

2015-12-01

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

Science.gov (United States)

Brown, K. M.; Fritzinger, C.; Wharton, E.

2004-12-01

The Grand Canyon Monitoring and Research Center measures the effects of Glen Canyon Dam operations on the resources along the Colorado River from Glen Canyon Dam to Lake Mead in support of the Grand Canyon Adaptive Management Program. Control points are integral for geo-referencing the myriad of data collected in the Grand Canyon including aerial photography, topographic and bathymetric data used for classification and change-detection analysis of physical, biologic and cultural resources. The survey department has compiled a list of 870 control points installed by various organizations needing to establish a consistent reference for data collected at field sites along the 240 mile stretch of Colorado River in the Grand Canyon. This list is the foundation for the Control Point Database established primarily for researchers, to locate control points and independently geo-reference collected field data. The database has the potential to be a valuable mapping tool for assisting researchers to easily locate a control point and reduce the occurrance of unknowingly installing new control points within close proximity of an existing control point. The database is missing photographs and accurate site description information. Current site descriptions do not accurately define the location of the point but refer to the project that used the point, or some other interesting fact associated with the point. The Grand Canyon Monitoring and Research Center (GCMRC) resolved this problem by turning the data collection effort into an educational exercise for the participants of the Grand Canyon Youth organization. Grand Canyon Youth is a non-profit organization providing experiential education for middle and high school aged youth. GCMRC and the Grand Canyon Youth formed a partnership where GCMRC provided the logistical support, equipment, and training to conduct the field work, and the Grand Canyon Youth provided the time and personnel to complete the field work. Two data
[Grand Banks activity : updates and opportunities

International Nuclear Information System (INIS)

Bruce, G.

1998-01-01

An overview of the exploration and on-going activities by the petroleum industry on the Grand Banks of Newfoundland was presented. The two offshore oil developments underway are Hibernia and Terra Nova, both located in the Jeanne d'Arc Basin. Current production from Hibernia is 68,000 bopd, expected to rise to 130,000 bopd in 1999. The Terra Nova Field is still under development. Total recoverable reserves from the 17 discoveries made in the Jeanne d'Arc Basin are estimated at 1.6 billion barrels of oil and 4 trillion cubic feet of gas. Industry participants in the area include Amoco, Petro-Canada, Mobil, Chevron, Husky and Norsk Hydro. Petro-Canada believes the Grand Banks represent one of the best opportunities for oil anywhere in the world. There are currently 21 exploration licenses held on the Grand Banks. Major attractions of the area include the large reserve potential, the relatively low finding costs, the size of the pools being discovered, improvements in offshore technology that have substantially lowered development costs, and a profit-sensitive generic royalty regime that ensures reasonable rates of return for investors. figs
Hydrogeological and hydrochemical characterization of unconfined aquifer located in the alteration mantle of the Serra Geral Formation, in the Taquari-Antas river basin, northeast of Rio Grande do Sul State

Directory of Open Access Journals (Sweden)

Gisele Cemin

2012-08-01

Full Text Available This paper presents the hydrogeological and hydrochemical characterization of the unconfined aquifer located in the alteration mantle in the volcanic rocks from Serra Geral Formation, in the northeast region of Rio Grande do Sul State. This aquifer is conditioned by the soil, topography, lithology and climate, being characterized by a saturated layer thinner than 1,7 m, static levels between 0 and 1 m and low flow (<0,5 m3/h. These waters are of calcium or magnesium bicarbonate type, and low alkalinity and electrical conductivity, low calcium, magnesium, sodium, potassium and chloride concentrations, and high iron and manganese concentrations. Additionally, these waters have high concentration of nitrates (mean above 10 mg/L and the presence of total coliforms. These characteristics evidence a quick circulation between the recharging and discharge zones in the aquifer.
Regional economic impacts of Grand Canyon river runners.

Science.gov (United States)

Hjerpe, Evan E; Kim, Yeon-Su

2007-10-01

Economic impact analysis (EIA) of outdoor recreation can provide critical social information concerning the utilization of natural resources. Outdoor recreation and other non-consumptive uses of resources are viewed as environmentally friendly alternatives to extractive-type industries. While outdoor recreation can be an appropriate use of resources, it generates both beneficial and adverse socioeconomic impacts on rural communities. The authors used EIA to assess the regional economic impacts of rafting in Grand Canyon National Park. The Grand Canyon region of northern Arizona represents a rural US economy that is highly dependent upon tourism and recreational expenditures. The purpose of this research is twofold. The first is to ascertain the previously unknown regional economic impacts of Grand Canyon river runners. The second purpose is to examine attributes of these economic impacts in terms of regional multipliers, leakage, and types of employment created. Most of the literature on economic impacts of outdoor recreation has focused strictly on the positive economic impacts, failing to illuminate the coinciding adverse and constraining economic impacts. Examining the attributes of economic impacts can highlight deficiencies and constraints that limit the economic benefits of recreation and tourism. Regional expenditure information was obtained by surveying non-commercial boaters and commercial outfitters. The authors used IMPLAN input-output modeling to assess direct, indirect, and induced effects of Grand Canyon river runners. Multipliers were calculated for output, employment, and income. Over 22,000 people rafted on the Colorado River through Grand Canyon National Park in 2001, resulting in an estimated $21,100,000 of regional expenditures to the greater Grand Canyon economy. However, over 50% of all rafting-related expenditures were not captured by the regional economy and many of the jobs created by the rafting industry are lower-wage and seasonal. Policy
A Unified Grand Tour of Theoretical Physics

CERN Document Server

Lawrie, Ian D

2002-01-01

A unified account of the principles of theoretical physics, A Unified Grand Tour of Theoretical Physics, Second Edition stresses the inter-relationships between areas that are usually treated as independent. The profound unifying influence of geometrical ideas, the powerful formal similarities between statistical mechanics and quantum field theory, and the ubiquitous role of symmetries in determining the essential structure of physical theories are emphasized throughout.This second edition conducts a grand tour of the fundamental theories that shape our modern understanding of the physical wor
Effective Higgs theories in supersymmetric grand unification

Energy Technology Data Exchange (ETDEWEB)

Zheng, Sibo [Chongqing University, Department of Physics, Chongqing (China)

2017-09-15

The effective Higgs theories at the TeV scale in supersymmetric SU(5) grand unification models are systematically derived. Restricted to extensions on 5{sub H} containing the Higgs sector we show that only two types of real (vector-like) models and one type of chiral model are found to be consistent with perturbative grand unification. While the chiral model has been excluded by the LHC data, the fate of perturbative unification will be uniquely determined by the two classes of vector-like models. (orig.)
The Nature of Grand Minima and Maxima from Fully Nonlinear Flux Transport Dynamos

Energy Technology Data Exchange (ETDEWEB)

Inceoglu, Fadil; Arlt, Rainer [Leibniz-Institute for Astrophysics Potsdam, An der Sternwarte 16, D-14482, Potsdam (Germany); Rempel, Matthias, E-mail: finceoglu@aip.de [High Altitude Observatory, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307 (United States)

2017-10-20

We aim to investigate the nature and occurrence characteristics of grand solar minimum and maximum periods, which are observed in the solar proxy records such as {sup 10}Be and {sup 14}C, using a fully nonlinear Babcock–Leighton type flux transport dynamo including momentum and entropy equations. The differential rotation and meridional circulation are generated from the effect of turbulent Reynolds stress and are subjected to back-reaction from the magnetic field. To generate grand minimum- and maximum-like periods in our simulations, we used random fluctuations in the angular momentum transport process, namely the Λ-mechanism, and in the Babcock–Leighton mechanism. To characterize the nature and occurrences of the identified grand minima and maxima in our simulations, we used the waiting time distribution analyses, which reflect whether the underlying distribution arises from a random or a memory-bearing process. The results show that, in the majority of the cases, the distributions of grand minima and maxima reveal that the nature of these events originates from memoryless processes. We also found that in our simulations the meridional circulation speed tends to be smaller during grand maximum, while it is faster during grand minimum periods. The radial differential rotation tends to be larger during grand maxima, while it is smaller during grand minima. The latitudinal differential rotation, on the other hand, is found to be larger during grand minima.
Integrated telemedicine workstation for intercontinental grand rounds

Science.gov (United States)

Willis, Charles E.; Leckie, Robert G.; Brink, Linda; Goeringer, Fred

1995-04-01

The Telemedicine Spacebridge to Moscow was a series of intercontinental sessions sponsored jointly by NASA and the Moscow Academy of Medicine. To improve the quality of medical images presented, the MDIS Project developed a workstation for acquisition, storage, and interactive display of radiology and pathology images. The workstation was based on a Macintosh IIfx platform with a laser digitizer for radiographs and video capture capability for microscope images. Images were transmitted via the Russian Lyoutch Satellite which had only a single video channel available and no high speed data channels. Two workstations were configured -- one for use at the Uniformed Services University of Health Sciences in Bethesda, MD. and the other for use at the Hospital of the Interior in Moscow, Russia. The two workstations were used may times during 16 sessions. As clinicians used the systems, we modified the original configuration to improve interactive use. This project demonstrated that numerous acquisition and output devices could be brought together in a single interactive workstation. The video images were satisfactory for remote consultation in a grand rounds format.
Fatores associados ao atraso no desenvolvimento em crianças, Rio Grande, Rio Grande do Sul, Brasil Factores asociados con retraso en el desarrollo de los niños, Rio Grande, Rio Grande do Sul, Brasil Factors associated with delay in development in children, Rio Grande, Rio Grande do Sul, Brazil

Directory of Open Access Journals (Sweden)

Aline Alves Veleda

2011-03-01

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

Constructing 5d orbifold grand unified theories from heterotic strings

International Nuclear Information System (INIS)

Kobayashi, Tatsuo; Raby, Stuart; Zhang Renjie

2004-01-01

A three-generation Pati-Salam model is constructed by compactifying the heterotic string on a particular T 6 /Z 6 Abelian symmetric orbifold with two discrete Wilson lines. The compactified space is taken to be the Lie algebra lattice G 2 -bar SU(3)-bar SO(4). When one dimension of the SO(4) lattice is large compared to the string scale, this model reproduces many features of a 5d SO(10) grand unified theory compactified on an S 1 /Z 2 orbifold. (Of course, with two large extra dimensions we can obtain a 6d SO(10) grand unified theory.) We identify the orbifold parities and other ingredients of the orbifold grand unified theories in the string model. Our construction provides a UV completion of orbifold grand unified theories, and gives new insights into both field theoretical and string theoretical constructions
Micetomas actinomicóticos no Rio Grande do Sul: relato de quatro casos Actinomycotic mycetomas in Rio Grande do Sul: report of 4 cases

Directory of Open Access Journals (Sweden)

Alberto T. Londero

1986-03-01

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

Science.gov (United States)

Cao, H.; Dougherty, M. K.; Khurana, K. K.; Hunt, G. J.; Provan, G.; Kellock, S.; Burton, M. E.; Burk, T. A.

2017-12-01

Saturn's internal magnetic field has been puzzling since the first in-situ measurements during the Pioneer 11 Saturn flyby. Cassini magnetometer measurements prior to the Grand Finale phase established 1) the highly axisymmetric nature of Saturn's internal magnetic field with a dipole tilt smaller than 0.06 degrees, 2) at least an order of magnitude slower secular variation rate compared to that of the current geomagnetic field, and 3) expulsion of magnetic fluxes from the equatorial region towards high latitude. The highly axisymmetric nature of Saturn's intrinsic magnetic field not only challenges dynamo theory but also makes an accurate determination of the interior rotation rate of Saturn extremely difficult. The Cassini spacecraft entered the Grand Finale phase in April 2017, during which time the spacecraft dived through the gap between Saturn's atmosphere and the inner edge of the D-ring 22 times before descending into the deep atmosphere of Saturn. The unprecedented proximity to Saturn (reaching 2500 km above the cloud deck) and the highly inclined nature of the Grand Finale orbits provided an ideal opportunity to decode Saturn's internal magnetic field. The fluxgate magnetometer onboard Cassini made precise vector measurements during the Grand Finale phase. Magnetic signals from the interior of the planet, the magnetospheric ring current, the high-latitude field-aligned current (FAC) modulated by the 10.7 hour planetary period oscillation, and low-latitude FACs were observed during the Grand Finale phase. Here we report the magnetometer measurements during the Cassini Grand Finale phase, new features of Saturn's internal magnetic field revealed by these measurements (e.g., the high degree magnetic moments of Saturn, the level of axisymmetry beyond dipole), and implications for the deep interior of Saturn.
Cosmic strings and galaxy formation

International Nuclear Information System (INIS)

Bertschinger, E.

1989-01-01

Cosmic strings have become increasingly popular candidates as seeds for the formation of structure in the universe. This scenario, remains a serious cosmogonical model despite close scrutiny. In constrast, magnetic monopoles and domain walls - relic topological defects as are cosmic strings - are disastrous for cosmology if they are left over from the early universe. The production of heavy cosmic strings is speculative, as it depends on the details of ultrahigh energy physics. Fortunately, speculation about cosmic strings is not entirely idle because, if they exist and are heavy enough to seed galaxy formation, cosmic strings can be detected astronomically. Failure to detect cosmic strings would impose some constraints on grand unified theories (GUTs); their discovery would have exciting consequences for high energy physics and cosmology. This article reviews the basic physics of nonsuperconducting cosmic strings, highlighting the field theory aspects, and provides a progress report on calculations of structure formation with cosmic strings
Assessing Grand Strategies: How the EU and NATO Rock the Strategic Boat

Science.gov (United States)

2015-05-01

part to constitute the embryos of the European Union and NATO grand strategies briefly illustrated in the extracts presented in the epigraph. These... embryos gestated over time becoming de facto grand strategies for these institutions. Applying the characterization of grand strategy elaborated in...6. Michio Kaku, Physics of the Future: How Science Will Shape Human Destiny and Our Daily
Grand Challenges for Environmental Magnetism

Science.gov (United States)

Verosub, K. L.

2009-05-01

The development of new, inexpensive, and rapid geochemical methods for determining the ages of geologic materials, their elemental composition, and their isotopic ratios over a broad array of elements puts into sharp focus the question: What information can environmental magnetic methods provide that can't be obtained using these other methods? Because iron is ubiquitous in the Earth's crust and because it exists in so many different forms, a discipline that looks in detail at iron-bearing minerals does have the potential to make significant contributions to the study of surficial processes. However, to reach that potential requires the development of new environmental magnetic methods. I would like to put forward three Grand Challenges for environmental magnetism that have the potential to move the field forward to a new level of scientific sophistication and that will allow environmental magnetists to compete successfully in a world increasingly dominated by geochemists. The first Grand Challenge is the development of new techniques that lead to the direct and unambiguous identification of the full suite of magnetic minerals. For many environmental magnetic applications, the key magnetic minerals are not just magnetite and hematite but also iron oxy-hydroxides (goethite, lepidocrocite, akaganeite, ferrihydrite), carbonates (siderite) and sulfides (pyrrhotite and greigite) as well as compounds involving iron and other transition metals (cobalt and nickel). The second Grand Challenge is the development of new analytical methods that provide specific quantitative values for the amount of each magnetic mineral present in a sample. One promising approach to this problem is the application of two- or three-component multivariate analysis to arrays of downcore environmental magnetic parameters. The third Grand Challenge is the development of new ways of determining, not just the average values, but the actual distributions of grain sizes and coercivities of each mineral
Selected topics in grand unification

International Nuclear Information System (INIS)

Seckel, D.

1983-01-01

This dissertation is a collection of four pieces of research dealing with grand unification. The topics are neutron oscillation, CP violation, magnetic monopole abundance and distribution in neutron stars, and a proposal for an inflationary cosmology driven by stress-energy in domain walls
Coordinated Exploration for Grand Challenges

DEFF Research Database (Denmark)

Ørding Olsen, Anders; Sofka, Wolfgang; Grimpe, Christoph

2016-01-01

Grand challenges are among the most complex problems for modern societies. Many governments and foundations provide substantial resources to encourage the search for solutions. Due to the significance of these problems, organizations often form partnerships in what we call search consortia to eng...
Water Environment Evolution along the China Grand Canal

International Nuclear Information System (INIS)

Mao, F; Wu, Y X; Yang, B F; Li, X J

2014-01-01

The China Grand Canal is one of the earliest canals in the world, having lasted for nearly 3000 years. Even its section canals have a rich history, such as the North-South Grand Canal that was established during the Sui Dynasty, whereas the Beijing-Hangzhou Canal was excavated during the Yuan Dynasty and the east line of the South-to-North Water Diversion. As one of the longest in the world, the China Grand Canal's total length is over 3500 kilometers. This length includes the navigable, unnavigable, and underground sections. Making the best use of situations and according to local conditions, the Chinese people harmoniously constructed the Beijing-Hangzhou Canal with nature. Tens of millions of workers took nearly 3000 years to complete the great shipping system. Navigable sections still exist for up to 900 kilometers and the volume of freight traffic is approximately 300 million tons. The canal remains the main logistical channel of the North-to-South Coal Transportation, South-to-North Water Diversion, and resources circulation. To date, China is promoting the success of heritage application. Part of these efforts is the declaration of the China Grand Canal as a World Cultural Heritage by 2014. In addition, the east route of the South-to-North Water Transfer project is planned to be navigable by 2016. The ancient Beijing-Hangzhou Grand Canal will usher in the new ecological civilization and cultural revival along the canal. This paper presents technical methods of water environment evolution research on the river system, river, and water quality along the Beijing-Hangzhou Canal through the integration of historical literature and modern remote sensing image data. The study carried out water environment investigation and analysis along the Beijing-Hangzhou canal by using ETM, SPOT image data, and GPS measurement data. Spatial and temporal evolution characteristics and regulations of the Beijing-Hangzhou Grand Canal regional water environment in the span of
Grand Narrative Pemberantasan Korupsi dalam Wacana Konflik Sepak Bola di Media Cetak

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Afdal Makkuraga Putra

2017-05-01

Full Text Available Eradication of corruption has been a grand narrative since the early of reformation era. Mass media became part of the preservation of the grand narrative. Grand narrative is the main narration which becomes basis and universal character since it can be used as standard to measure and assess other narratives. This study analyzes grand narrative of corruption eradication in Indonesia soccer conflict in print media by using critical discourse by Norman Fairclough as research method. The result shows that media preserved grand narrative of corruption eradication through image projection of corruptors as common enemy. The spread of anti-corruption information through mass media carried out continuously and sustainably is a manifestation of the commitment to fight corruption. Information provided by media does not only explains the state’s loss but up to the development of its completion.
The first Triassic dipteran (Insecta) from South America, with review of Hennigmatidae.

Science.gov (United States)

Lara, María Belén; Lukashevich, Elena D

2013-01-01

The first Triassic dipteran from South America is described based on an isolated wing from the lower Upper Triassic deposits of Argentina (Mendoza Province, Potrerillos Formation, Quebrada del Durazno locality). Trihennigma zavattierii gen. et sp. nov. is a member of the Mesozoic family Hennigmatidae, previously recorded only from Eurasia. A key for the genera and species of Hennigmatidae is provided and systematic position of the taxa is discussed.
Phase transitions at finite chemical potential in grand unified theories

International Nuclear Information System (INIS)

Bailin, D.; Love, A.

1984-01-01

We discuss the circumstances in which non-zero chemical potentials might prevent symmetry restoration in phase transitions in the early universe at grand unification or partial unification scales. The general arguments are illustrated by consideration of SO(10) and SU(5) grand unified theories. (orig.)
A Grande Reportagem em Televisão

OpenAIRE

Teixeira, Clara Manuela Araújo

2009-01-01

Monografia apresentada à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Licenciada em Ciências da Comunicação Este projecto de graduação é dedicado ao estudo da elaboração de uma grande reportagem em televisão. As próximas páginas procuram dar a conhecer ao leitor as diferentes fases do processo de realização de uma grande reportagem audiovisual: desde a preparação à investigação feita pelo jornalista, passando pela recolha de informação no terr...
The geology of Piz Pian Grand

International Nuclear Information System (INIS)

Huber, M.; Staeuble, J.

1987-01-01

Nagra has identified four potential sites for a repository for low- and intermediate-level waste. Exploration work is already underway at Oberbauenstock (UR) and Piz Pian Grand (GR). As part of the investigations in the Piz Pian Grand area, geological surface mapping was carried out between 1984 and 1987. Since the data obtained is still being evaluated, it would be premature to draw any interpretative conclusions at this stage. On the other hand, some of the most significant observations of this work can be summarised here. As a first step, the geological framework in which these investigations are to be seen should be defined. Observations will then be made on the rock content (lithology) and geometric structure (structural geology) of the area. (author) 6 figs
Cosmological implications of grand unified theories

International Nuclear Information System (INIS)

Nanopoulos, D.V.

1982-01-01

These lectures, mainly devoted to the cosmological implications of GUTs, also include the essential ingredients of GUTs and some of their important applications to particle physics. Section 1 contains some basic points concerning the structure of the standard strong and electroweak interactions prior to grand unification. A detailed expose of GUTs is attempted in sect. 2, including their basci principles and their consequences for particle physics. The minimal, simplest GUT, SU 5 is analysed in some detail and it will be used throughout these lectures as the GUT prototype. Finally, sect. 3 contains the most important cosmological implications of GUTs, including baryon number generation in the early Universe (in rather lengthy detail), dissipative processes in the very early Universe, grand unified monopoles, etc. (orig./HSI)
Warm and Humid Air Blowing over Cold Water - Grand Banks Fog

Science.gov (United States)

Taylor, P.; Weng, W.

2016-12-01

The condensation of water vapour into droplets and the formation of fog in the Earth's atmospheric boundary layer involves a complex balance between horizontal advection and vertical turbulent mixing of heat and water vapour, cloud microphysical processes and radiative transfers of heat, plus the impact of water droplets, and sometimes ice crystals, on visibility. It is a phenomenon which has been studied for many years in a variety of contexts. On land, surface cooling of the ground via long wave radiation at night is often the trigger and a number of 1-D (height and time dependent) radiative fog models have been developed. Over the waters offshore from Newfoundland a key factor is the advection of moist air from over warm gulf stream waters to colder Labrador current water - an internal boundary-layer problem. Some basic properties can be learned from a steady state 2-D (x-z) model.The WTS (Weng, Taylor and Salmon, 2010, J. Wind Eng. Ind. Aerodyn. 98, 121-132 ) model of flow above changes in surface conditions has been used to investigate planetary boundary-layer flow over water with spatial changes in temperature, and to investigate situations leading to saturation and fog formation. Our turbulence closure includes the turbulent kinetic energy equation but we prefer to specify a height, surface roughness, Rossby number and local stability dependent, "master" length scale instead of a somewhat empirical dissipation or similar equation. Results show that fog can develop and extent to heights of order 100m in some conditions, depending on upstream profiles of wind, temperature and mixing ratio, and on solar radiation and the horizontal variations in water surface temperature.Next steps will involve validation against data being collected (by AMEC-Foster Wheeler in the Hibernia Management and Development Company Metocean project) over the Grand Banks and an interface with WRF and high resolution sea surface temperature data for forecasting fog conditions over the
Temporal and spatial variations in the diagenetic fabrics and stable isotopes of Pleistocene corals from the Ironshore Formation of Grand Cayman, British West Indies

Science.gov (United States)

Li, Rong; Jones, Brian

2013-03-01

On Grand Cayman, the unconformity bounded Units A to F in the Ironshore Formation represent repeated cycles of deposition and subaerial exposure that were associated with the dramatic oscillations in sea levels that characterized the Middle to Late Pleistocene. Montastrea annularis and Acropora palmata, the dominant corals found in Units A to F in the Rogers Wreck Point area and offshore George Town area, reflect these changes with their complex mosaics of marine (aragonite cements, bioerosion, internal sediments) and meteoric (calcitization of coral skeleton, dissolution) diagenetic features. The distribution of the diagenetic fabrics throughout this sequence, however, is not predictable. The randomness in the degree of skeletal calcitization is shown by the lack of systematic variation in calcitization from Units A to F, and the fact that the degree of skeletal calcification in M. annularis is higher than that in A. palmata in the Rogers Wreck Point area but less than in A. palmata in the George Town cores. The stable isotope compositions (δ13C, δ18O) of the corals from Units A to F plot along the same trend line with their positions on that trend reflecting the amount of meteoric diagenesis they have undergone. The variable styles and degrees of diagenesis evident in the corals from the Ironshore Formation reflect (1) the variable impact of intrinsic (e.g., skeletal architecture, porosity of coral) and extrinsic (e.g., sea level, climate) factors during each phase of diagenesis, and (2) temporal effects associated with the diagenetic overprinting that took place during each successive phase of diagenesis. This means that the diagenetic fabrics are not stratigraphically ordered and that it is impossible to correlate specific diagenetic phases with specific sea level lowstands or highstands.
Grandes números primos

OpenAIRE

Bang, Thöger

2012-01-01

En las escuelas danesas la teoría de los números se ha ido restringiendo gradualmente hasta no incluir sino la demostración de la descomposición univoca de los números enteros en números primos y la demostración del teorema clásico de EUCLIDES sobre la existencia de un número primo arbitrariamente grande.
Os grandes consumidores de consultas medicas: um estudo de familia

Directory of Open Access Journals (Sweden)

M. Pereira Graça

2002-01-01

Full Text Available Este artículo describe un estudio sobre algunas características familiares de sujetos grandes consumidores de servicios de salud. Por un lado, se compara un grupo de grandes consumidores de servicios de salud, a nivel de número de consultas, con un grupo control en términos de funcionamiento familiar y actitudes hacia los médicos y la Medicina; por otro lado, se estudia la relación entre la dinámica familiar y las actitudes hacia la Medicina y los médicos en el grupo de los grandes consumidores. Los resultados muestran que los dos grupos de usuarios son significativamente diferentes; además, en el grupo de grandes consumidores el funcionamiento familiar problemático parece ser un factor intermediario en el desarrollo de actitudes menos negativas hacia los médicos y la Medicina. Se discuten las implicaciones que los resultados tienen a nivel de intervención terapéutica.
Restrictions on SU(5) as a grand unified theory

International Nuclear Information System (INIS)

Shellard, R.C.

1984-01-01

Some restrictions imposed upon Grand Unified Theories by dynamical symetry breakdown are examined. They are shown that, in particular, theories SU(5) as symmetry group, with 3 or more fermion families undergo dynamical symmetry breakdown, and some of the fermions will acquire mass at the Grand Unified scale. On the other hand, the SO(10) group, with 3 families is free from this problem. (Author) [pt

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

Science.gov (United States)

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

1995-01-01

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

International Nuclear Information System (INIS)

Camp, V.E.; Price, S.M.; Reidel, S.P.

1978-10-01

The Grande Ronde Basalt type section, located in extreme southeastern Washington, was measured, sampled, and characterized. The section is 800 meters thick and is comprised of 35 Grande Ronde Basalt flows. These flows are divisible into 3 magnetostratiographic units termed, in ascending order, the R 1 , the N 1 , and the R 2 . The R 1 unit is represented by 13 reversely polarized flows; the N 1 unit, by 13 normally polarized flows; and the R 2 , by 9 reversely polarized flows. Chemically, the Grande Ronde Basalt flows are divided into 2 major groups, termed A and B. The compositions of the lower 9 flows, members of Group A, are similar to either the high-Mg Grande Ronde chemical type, the high-Ti Grande Ronde chemical type, or the Pomona chemical type. The compositions of the upper 25 flows, members of Group B, are predominantly similar to the low-Mg Grande Ronde chemical type. Petrographically, the Grande Ronde Basalt flows are generally fine grained and aphyric, and have a intergranular or intersertal micro-texture. Major mineral phases include plagioclase (An/sub 40-60/) and augite; minor mineral phases include pigeonite, orthopyroxene, ilmenite, titanomagnetite, and olivine. Group A flows generally contain more olivine and less pigeonite than do Group B flows. 6 figures, 6 tables
Pequena monografia sobre o Rio Grande do Sul

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Ana Maria Pinho

2014-05-01

Full Text Available Pequena monografia desenvolvida por membros do Colégio Sevigne, que versa sobre diversos assuntos a respeito do Rio Grande do Sul, divididos em histórico, fronteiras, organização política administrativa, características geográficas, formação geomorfológica, economia, aspectos históricos e geográficos da capital do Estado, generalidades étnicas, e sobre o gaúcho em si. Grande quantidade de ilustrações e poemas enriquecem o artigo.
Chemical stratigraphy of Grande Ronde Basalt, Pasco Basin, south-central Washington

International Nuclear Information System (INIS)

Long, P.E.; Ledgerwood, R.K.; Myers, C.W.; Reidel, S.P.; Landon, R.D.; Hooper, P.R.

1980-02-01

Grande Ronde Basalt in the Pasco Basin, south-central Washington, can be subdivided into three chemical types and two chemical subtypes based on x-ray fluorescence major element analysis of samples from seven deep core holes and three surface sections. These chemical types are: (1) high-Mg Grande Ronde chemical type; (2) low-Mg Grande Ronde chemical type; (3) low-K (very high-Mg.) Grande Ronde chemical type; and (4) Umtanum Grande Ronde chemical subtype. A possible fifth subdivision is the McCoy Canyon Grande Ronde chemical subtype. The Umtanum and the McCoy Canyon subtypes are both single flows which belong to the low Mg and high-Mg chemical types, respectively. These subdivisions are all distinguished on a plot of MgO versus TiO 2 and/or MgO versus P 2 O 5 , but other major and minor elements, as well as trace elements, also reflect consistent chemical differences between the chemical types. Identification of these chemical types in the Pasco Basin subsurface shows that the high-Mg and low-Mg chemical types are ubiquitous, but the low-K chemical type is limited to the central, southern, and eastern parts of the basin. The Umtanum chemical subtype is present throughout the Pasco Basin subsurface, although it thins in the northeastern part of the basin and is apparently absent from surface exposures 40 kilometers (25 miles) north of the basin. The McCoy Canyon chemical subtype is also present throughout the basin
First-Year Students' Attitudes towards the Grand Challenges and Nanotechnology

Science.gov (United States)

Lakin, Joni M.; Han, Yi; Davis, Edward

2016-01-01

The "Grand Challenges" for Engineering are an effort to portray engineering as a field that has profound impacts on society. This study explores the level of interest first-year engineering students had in various "Grand Challenges" and in nanotechnology topics. We administered a survey to a large sample of students enrolled in…
First report of Phytophthora ramorum infecting grand fir in California

Science.gov (United States)

K.L. Riley; G.A. Chastagner

2011-01-01

Phytophthora ramorum was detected on grand fir in 2003 and 2005 in a Christmas tree plantation near Los Gatos, CA, in association with infected California bay laurel. Isolates derived from stem lesions were used to inoculate grand fir seedlings in two tests. Isolations from lesions on inoculated plants were positive for P. ramorum...
Using Grand Challenges to Teach Science: A Biology-Geology Collaboration

Science.gov (United States)

Lyford, M.; Myers, J. D.

2012-12-01

Three science courses at the University of Wyoming explore the inextricable connections between science and society by centering on grand challenges. Two of these courses are introductory integrated science courses for non-majors while the third is an upper level course for majors and non-majors. Through collaboration, the authors have developed these courses to explore the grand challenges of energy, water and climate. Each course focuses on the fundamental STEM principles required for a citizen to understand each grand challenge. However, the courses also emphasize the non-STEM perspectives (e.g., economics, politics, human well-being, externalities) that underlie each grand challenge and argue that creating equitable, sustainable and just solutions to the grand challenges hinges on an understanding of STEM and non-STEM perspectives. Moreover, the authors also consider the multitude of personal perspectives individuals bring to the classroom (e.g., values, beliefs, empathy misconceptions) that influence any stakeholder's ability to engage in fruitful discussions about grand challenge solutions. Discovering Science (LIFE 1002) focuses on the grand challenges of energy and climate. Students attend three one-hour lectures, one two-hour lab and a one-hour discussion each week. Lectures emphasize the STEM and non-STEM principles underlying each grand challenge. Laboratory activities are designed to be interdisciplinary and engage students in inquiry-driven activities to reinforce concepts from lecture and to model how science is conducted. Labs also expose students to the difficulties often associated with scientific studies, the limits of science, and the inherent uncertainties associated with scientific findings. Discussion sessions provide an opportunity for students to explore the complexity of the grand challenges from STEM and non-STEM perspectives, and expose the multitude of personal perspectives an individual might harbor related to each grand challenge
Liberating methodological thinking in human sciences from grand theories

DEFF Research Database (Denmark)

Kharlamov, Nikita; Baldursson, Einar Baldvin

2016-01-01

focus on the necessity of a “grand unified theory” at the expense of any and all alternative perspectives. Properties of grand theories are discussed on the examples of Giddens and Bourdieu. It is argued that grand theories hamper a more productive focus on concrete phenomena. Robert Merton’s focus......Many humanistic and social disciplines are naturally inclined to seek for human-, person-, self- centered focus, and develop a holistic theory of such. Such disciplines continually engage with philosophical, metaphysical and meta-theoretical perspectives. This engagement often leads to a singular...... on “middle range” theories is revisited and its continuing relevance is highlighted. The level of abstraction characteristic of such theories, as well as the way they engage with the empirical social reality, are discussed. The article concludes by considering the paradoxical reductionism that can...
Levantamento etnobotânico de espécies arbóreas no assentamento Tabuleiro Grande, Apodi, Rio Grande do Norte

Directory of Open Access Journals (Sweden)

Mônica Costa Cordeiro

2017-02-01

Full Text Available Objetivou-se realizar um levantamento etnobotânico no Projeto de Assentamento Tabuleiro Grande, localizado em Apodi, Rio Grande do Norte, contribuindo para o resgate do conhecimento popular discutindo as implicações do uso da vegetação arbórea na conservação dos recursos florestais. A condução do estudo foi por meio da observação direta e entrevistas semiestruturadas (21 entrevistas. Para análise dos dados foram feitas abordagens qualitativas (acesso a informações subjetivas e quantitativas (Valor de Uso; índices de diversidade de Shannon e de equabilidade de Pielou. Foram mencionadas no levantamento 57 espécies arbóreas, entre nativas e exóticas, distribuídas em 26 famílias e enquadradas nas seguintes categorias de uso: Madeira (móveis e construção, Medicina/Higiene, Apicultura, Lenha, Veterinária Popular, Forragem, Alimentação Humana e Outros. Com os resultados obtidos, conclui-se que a comunidade estudada possui conhecimento sobre um grande número de espécies arbóreas. No entanto, no que diz respeito a “uso”, poucas espécies são, de fato, utilizadas. De forma geral, o conhecimento popular na comunidade está mantido com uma pequena parcela dos entrevistados e não é repassado, tendendo a tornar-se cada vez mais escasso.Ethnobotanical survey of tree species in the Tabuleiro Grande settlement, Apodi, Rio Grande do NorteAbstract: The aim this study was to realize ethnobotanical survey in Settlement Tabuleiro Grande Project, located in Apodi - RN, to contribute to the rescue of popular knowledge and discuss the implications of the use of trees in the conservation of forest resources. The conduct of the study was through direct observation and semi-structured interviews (21 interviews. Data analysis were made qualitative approaches (access to subjective information and quantitative (use value -VU, Shannon diversity and Pielou evenness indexes. Were mentioned in the survey 57 tree species native and exotic
The Influence of the Actor Network on the Innovative Process of Transgenic Soybean in Rio Grande Do Sul, Brazil

Directory of Open Access Journals (Sweden)

Doriana Daroit

2009-12-01

Full Text Available Rio Grande do Sul was the first Brazilian state to plant genetically modified soybean. The sowing occurred in 1998 with Roundup Ready soybean seeds from Monsanto smuggled from Argentina. The aim of this study is to investigate how this innovative process of planting transgenic soybean came about in Rio Grande do Sul based on the actor network involved in the period 1998 to 2003. Although the innovative process has been discussed in the literature on innovation management since the work of Schumpeter, there is still no clear understanding of the issues of interests and power that involve the innovative process. Given this, from within the literature we have sought a perspective that would understand the innovative process as being political. We adopted Actor Network Theory as a base for the discussion of the primary and secondary data obtained regarding the controversy surrounding transgenic soybean in RS. The results point to the existence of two translation chains that contribute towards the formation of actor networks.
Landscape Evolution Comparison between Sacra Mensa, Mars and the Grand Mesa, Colorado, USA

Science.gov (United States)

Chesnutt, J. M.; Wegmann, K. W.; Cole, R. D.; Byrne, P. K.

2017-12-01

The Grand Mesa in Colorado is one of the largest and highest flat-topped mountains on Earth, and as such provides a compelling analog for Mars' Sacra Mensa. Both basalt-capped landforms are morphologically similar, enabling a landscape evolution comparison between the two that considers key differences in locale, composition, and environmental conditions. Sacra Mensa is nearly 50 times the area of Grand Mesa and towers 3 km above the surrounding area. The 1,300 km2 Grand Mesa rises 2 km above Grand Valley, and is bracketed by the Colorado and Gunnison Rivers in much the same way as Sacra Mensa is bounded by braided channels of Kasei Valles. The sustained incision by the Gunnison and Colorado was a key erosive force in the creation of the Grand Mesa, whereas punctuated but voluminous Hesperian glacio-fluvial floods are thought to have carved the Sacra Mensa. The Grand Mesa is undergoing extensive mass wasting, ranging from deadly landslides like the 2014 West Salt Creek rock avalanche to hundreds of slower-moving retrogressive slump blocks calving off the Miocene basalt cap. The genesis and modification of both landforms includes volcanic and fluvial activity, albeit in an inverted sequence. The Grand Mesa basalt cap has preserved the landform during the incision around its sides, whereas Sacra Mensa was likely carved by floods, with those flood channels later modified by lava flows. Recent (2015-2017) LiDAR surveys revealed massive and possible ancient landslides in many stream valleys and extensive earthflows on all sides of the Grand Mesa. In the case of the Grand Mesa, the large landslides are mainly occurring in one stratigraphic unit. In comparison, the western half of Sacra Mensa contains substantial slumping accompanied by landslides and debris flows, whereas the eastern half has relatively few such phenomena. Here, we report on the first Mesa-Mensa landscape evolution analog study. The surficial and bedrock mapping and 14C dating of key features of the
DOE-Grand Junction logging model data synopsis

International Nuclear Information System (INIS)

Mathews, M.A.; Koizumi, C.J.; Evans, H.B.

1978-05-01

This synopsis provides the available data concerning the logging models at the DoE-Grand Junction facility, to date (1976). Because gamma-ray logs are used in uranium exploration to estimate the grade (percent U 3 O 8 ) and the thickness of uranium ore zones in exploration drill holes, logging models are required to calibrate the gamma-ray logging equipment in order to obtain accuracy, uniformity, standardization, and repeatability during logging. This quality control is essential for accurate ore reserve calculations and for estimates of ore potential. The logging models at the DoE-Grand Junction facility are available for use by private industry in calibrating their gamma-ray logging equipment. 21 figures, 26 tables
EXPLORANDO LA VARIABILIDAD MORFOMÉTRICA DEL CONJUNTO DE CAMÉLIDOS PEQUEÑOS DURANTE EL ARCAICO TARDÍO Y EL FORMATIVO TEMPRANO EN QUEBRADA TULÁN, NORTE DE CHILE / Exploring the morphometric variability of lesser camelids from Quebrada Tulán (northern Chile

Directory of Open Access Journals (Sweden)

Isabel Cartajena Fasting

2009-12-01

Full Text Available Frecuentemente en el registro arqueofaunístico de sitios arqueológicos ubicados en la vertiente occidental de la puna de Atacama, es posible diferenciar un conjunto de camélidos grandes y otro de menor tamaño. En general, el grupo de camélidos grandes ha recibido mayor atención, existiendo un escaso conocimiento del grupo de tamaño más pequeño. En este trabajo se explora el conjunto de camélidos pequeños a través de la utilización de métodos osteométricos. Por una parte, se consideran colecciones actuales de alpacas y vicuñas en las que se analizan las distintas variables que pudiesen estar incidiendo en la variabilidad de los conjuntos. Se otorga especial énfasis a la diferenciación entre falanges anteriores y posteriores, variación interespecífica y dimorfismo sexual. Por otra parte, se analizan las primeras falanges de los sitios Tulán-52 (Arcaico Tardío ca. 4500-3800 A.P. y Tulán-54 (Formativo Temprano ca. 3200-2300 A.P. con el fin de caracterizar la variabilidad que presentan los conjuntos a través del tiempo, mediante la comparación de los resultados del análisis de muestras actuales y arqueológicas. Ambos conjuntos arqueofaunísticos son muy similares a pesar de las diferencias temporales. Los especimenes analizados corresponderían a vicuñas, lo que denotaría la importancia de la caza de la vicuña a través del tiempo.Palabras clave:arqueofaunas,osteometria, alpacas, vicuñasAbstractFrequently, it is possible to differentiate among large and small size camelids when analysing registers from archaeological sites located at the occidental slope of Puna de Atacama. However, larger animals have received most of the attention having less knowledge about the group of small size camelids. In this paper and by using osteometric methods we study this small size later group. On one hand, we analyse different variables that may affect variability among modern alpacas and vicuñas collections. We focus our work on
Blaise Cendrars et ses 'Grands Fétiches'

DEFF Research Database (Denmark)

Doubinsky, Sebastien

2016-01-01

Quand l’écrivain Blaise Cendrars fait paraître sa série de poèmes réunis sous le titre Les Grands Fétiches dans la revue bruxelloise Le Disque vert en 1922, il semble participer de la grande mode « Nègre » qui secoue la France en cette période. Co-découvreur des arts dits « primitives » dès 1916...... avec Guillaume Apollinaire, l’écrivain va les insérer dans son travail poétique comme miroirs inversés de la modernité occidentale. Cependant, même s'il utilise certains des clichés racistes de son époque, il se place lui-même dans le camp des « mélanophiles », et va se servir de cet Art Nègre pour...... repousser à l'extrême les frontières de la modernité. La série des Grands Fétiches participe directement de ce désir, et nous tenterons de montrer dans cet article comment ces objets dits primitifs deviennent des objets « instables » qui remettent en question la définition même du poétique....
Biomechanical analysis technique choreographic movements (for example, "grand battman jete"

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Batieieva N.P.

2015-04-01

Full Text Available Purpose : biomechanical analysis of the execution of choreographic movement "grand battman jete". Material : the study involved students (n = 7 of the department of classical choreography faculty of choreography. Results : biomechanical analysis of choreographic movement "grand battman jete" (classic exercise, obtained kinematic characteristics (path, velocity, acceleration, force of the center of mass (CM bio parts of the body artist (foot, shin, thigh. Built bio kinematic model (phase. The energy characteristics - mechanical work and kinetic energy units legs when performing choreographic movement "grand battman jete". Conclusions : It was found that the ability of an athlete and coach-choreographer analyze the biomechanics of movement has a positive effect on the improvement of choreographic training of qualified athletes in gymnastics (sport, art, figure skating and dance sports.
"Teine" võitis Prantsusmaal Grand Prix'

Index Scriptorium Estoniae

2006-01-01

Prantsusmaal Essonne'is toimuval 8. Euroopa filmifestivalil Cinessonne sai üliõpilaste žürii grand prix rahvusvahelises ühistöös valminud tantsufilm "Teine" ("Another") : režissöör Rene Vilbre. Ka teistest festivalidest, kus film osalenud
Progress on the palynostratigraphy of the Permian strata in Rio Grande do Sul State, Paraná Basin, Brazil

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Souza Paulo A.

2005-01-01

Full Text Available A review of published papers and results of analysis of new material have allowed improvements on the palynostratigraphy of the Permian strata of the Paraná Basin in Rio Grande do Sul State. Based on first and last occurrences of certain species of pollen taxa, two palynozones are formalized, these are the Vittatina costabilis and Lueckisporites virkkiae Interval Zones, in ascending order. The Vittatina costabilis Interval Zone is subdivided into two units, in ascending order the Protohaploxypinus goraiensis and the Hamiapollenites karrooensis Subzones, and is recognized from the glacial (Itararé Group and post-glacial sequence (Rio Bonito Formation and the base of the Palermo Formation. The Lueckisporites virkkiae Interval Zone occurs from the uppermost Rio Bonito Formation, through the Palermo and Irati formations, and into the Serra Alta and Teresina formations. The main characteristics and reference sections are established, as well as additional criteria to recognize biostratigraphical units, in accordance with the International Stratigraphic Guide. Palynostratigraphical correlation suggests that the Vittatina costabilis Zone concerns the Early Permian (early Cisuralian, while the Lueckisporites virkkiae is regarded as late Early Permian to early Middle Permian (late Cisularian to early Guadalupian.
Mesohabitats, fish assemblage composition, and mesohabitat use of the Rio Grande silvery minnow over a range of seasonal flow regimes in the Rio Grande/Rio Bravo del Norte, in and near Big Bend National Park, Texas, 2010-11

Science.gov (United States)

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

2014-01-01

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

Energy Technology Data Exchange (ETDEWEB)

1993-12-31

On May 4--7, 1993, nine federal agencies sponsored a four-day meeting on Grand Challenge applications and software technology. The objective was to bring High-Performance Computing and Communications (HPCC) Grand Challenge applications research groups supported under the federal HPCC program together with HPCC software technologists to: discuss multidisciplinary computational science research issues and approaches, identify major technology challenges facing users and providers, and refine software technology requirements for Grand Challenge applications research. The first day and a half focused on applications. Presentations were given by speakers from universities, national laboratories, and government agencies actively involved in Grand Challenge research. Five areas of research were covered: environmental and earth sciences; computational physics; computational biology, chemistry, and materials sciences; computational fluid and plasma dynamics; and applications of artificial intelligence. The next day and a half was spent in working groups in which the applications researchers were joined by software technologists. Nine breakout sessions took place: I/0, Data, and File Systems; Parallel Programming Paradigms; Performance Characterization and Evaluation of Massively Parallel Processing Applications; Program Development Tools; Building Multidisciplinary Applications; Algorithm and Libraries I; Algorithms and Libraries II; Graphics and Visualization; and National HPCC Infrastructure.
A report upon the Grand Coulee Fish Maintenance Project 1939-1947

Science.gov (United States)

Fish, F.F.; Hanavan, Mitchell G.

1948-01-01

The construction or Grand Coulee Dam, on the upper Columbia River, involved the loss of 1,140 lineal miles of spawning and rearing stream to the production of anadromous fishes. The fact that the annual value of these fish runs to the nation was estimated at $250,000 justified reasonable expenditures to assure their perpetuation. It was found economically infeasible to safely collect and pass adult fish upstream and fingerling fish downstream at the dam because of the tremendous flow of the river and the 320 foot vertical difference in elevation between forebay and tailrace.The Grand Coulee Fish-Maintenance Project, undertaken by the United States Fish and Wildlife Service in 1939, consisted in relocating the anadroumous runs of the upper Columbia River to four major tributaries entering below the Grand Coulee damsite. These streams were believed capable of supporting several times their existing, badly depleted, run. The plan was predicated upon the assumption that the relocated runs, in conformity with their "homing tendency", would return to the lower tributaries rather than attempt to reach their ancestral spawning grounds above Grand Coulee Dam. This interim report covers the history and accomplishments of the Grand Coulee Fish-Maintenance Project through the initial period of relocating the rune as well as the first four years of the permanent program. Results obtained to date indicate conclusive success in diverting the upper Columbia fish runs into the accessible lower tributaries. The results also indicate, less conclusively, that - in spite of many existing handicaps - the upper Columbia salmon and steelhead runs may be rehabilitated through the integrated program of natural and artificial propagation incorporated in the Grand Coulee Fish-Maintenance Project.

Introduction to grand unification theories

International Nuclear Information System (INIS)

Kang, Kyungsik

1980-01-01

We introduce the Georgi-Glashow model based on the minimal gauge group SU(5) as a prototype grand unification theory of the electroweak and strong interactions. Simple estimation of sin 2 thetasub(W) in the symmetry limit and the renormalization corrections at the energy scale of Msub(W) are given along wich other successes of the SU(5) model
The Grand Duchy on the Grand Tour: A Historical Study of Student Migration in Luxembourg

Science.gov (United States)

Rohstock, Anne; Schreiber, Catherina

2013-01-01

Since Luxembourg became independent in 1839, practically the entire political, economic and intellectual elite of the country has been socialised abroad. It was only in 2003 that the Grand Duchy set up its own university; before then, young Luxembourgers had to study in foreign countries. Over the past 150 years, Luxembourg has thus experienced…
Mapifcación y analisis de la distribución espacial de organismos indicadores de la calidad del agua en la quebrada la Ayurá (Envigado, Antioquia

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Guerra Rojas Adriana

2011-11-01

Full Text Available Esta investigación evalúa y analiza la distribución espacial de las comunidades de perifi ton y macroinvertebrados acuáticos utilizados en la determinación de la calidad del agua, considerando los trabajos realizados previamente por el grupo GAIA de la Universidad de Antioquia sobre la Quebrada Ayurá. Se emplearon las funciones de modelos hidrológicos, preestablecidos en la herramienta SIG, con las cuales se realizó el trazado de la red de corriente. A través de la superposición de capas temáticas, se obtuvo una herramienta cartográfi ca que permitió determinar la relación entre los usos del suelo dados a las zonas aledañas donde se ubicaron las estaciones de muestreo y la población de organismos colectados e identifi cados en cada punto. Los resultados obtenidos permiten decir que tanto las comunidades de protistas y macroinvertebrados acuáticos, como los índices establecidos, BMWP Colombia, Dinius e INSF, señalan una buena calidad del recurso hídrico para la estación 1, en donde se presentan bosques de coníferas, rastrojos altos y bajos; en la estación 2 se tiene una calidad aceptable, y allí se observan algunas construcciones, pastos y monocultivos; fi nalmente en la estación 3, ubicada en la zona urbana, la calidad es inferior a las anteriores estaciones.
Il Canal Grande a Venezia in scansione 3D da natante

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Caterina Balletti

2012-04-01

Full Text Available L’Università Iuav di Venezia ha testato sul Canal Grande le più innovative tecniche di rilevamento, in collaborazione con Riegl e Microgeo, realizzando la scansione di tutti i prospetti attraverso un sistema di acquisizione integrato da natante. The Grand Canal in Venice by boat 3d laser scanningThe Iuav University in Venice realized a test on the Canal Grande with the most advanced detection techniques, in col-laboration with Riegl and Microgeo, making the laser scanning of all the elevation through an acquisition system integrated on a ship.
Il Canal Grande a Venezia in scansione 3D da natante

Directory of Open Access Journals (Sweden)

Caterina Balletti

2012-04-01

Full Text Available L’Università Iuav di Venezia ha testato sul Canal Grande le più innovative tecniche di rilevamento, in collaborazione con Riegl e Microgeo, realizzando la scansione di tutti i prospetti attraverso un sistema di acquisizione integrato da natante. The Grand Canal in Venice by boat 3d laser scanning The Iuav University in Venice realized a test on the Canal Grande with the most advanced detection techniques, in col-laboration with Riegl and Microgeo, making the laser scanning of all the elevation through an acquisition system integrated on a ship.
Cassini's Grand Finale Overview

Science.gov (United States)

Spilker, L. J.

2017-12-01

After 13 years in orbit, the Cassini-Huygens Mission to Saturn ended in a science-rich blaze of glory. Cassini sent back its final bits of unique science data on September 15, 2017, as it plunged into Saturn's atmosphere, vaporizing and satisfying planetary protection requirements. Cassini's final phase covered roughly ten months and ended with the first time exploration of the region between the rings and planet. In late 2016 Cassini transitioned to a series of 20 Ring Grazing orbits with peripases just outside Saturn's F ring, providing close flybys of tiny ring moons, including Pan, Daphnis and Atlas, and high-resolution views of Saturn's A and F rings. A final Titan flyby in late April 2017 propelled Cassini across Saturn's main rings and into its Grand Finale orbits. Comprised of 22 orbits, Cassini repeatedly dove between Saturn's innermost rings and upper atmosphere to answer fundamental questions unattainable earlier in the mission. The last orbit turned the spacecraft into the first Saturn atmosphere probe. The Grand Finale orbits provided highest resolution observations of both the rings and Saturn, and in-situ sampling of the ring particle composition, Saturn's atmosphere, plasma, and innermost radiation belts. The gravitational field was measured to unprecedented accuracy, providing information on the interior structure of the planet, winds in the deeper atmosphere, and mass of the rings. The magnetic field provided insight into the physical nature of the magnetic dynamo and structure of the internal magnetic field. The ion and neutral mass spectrometer sampled the upper atmosphere for molecules that escape the atmosphere in addition to molecules originating from the rings. The cosmic dust analyzer directly sampled the composition from different parts of the main rings for the first time. Fields and particles instruments directly measured the plasma environment between the rings and planet. Science highlights and new mysteries collected in the Grand
Albuquerque/Middle Rio Grande Urban Waters Viewer

Data.gov (United States)

U.S. Environmental Protection Agency — These data have been compiled in support of the Middle Rio Grande/Albuquerque Urban Waters Partnership for the region including Albuquerque, New Mexico.The Middle...
Olivine-hornblende-lamprophyre dikes from Quebrada los Sapos, El Teniente, Central Chile (34°S: implications for the temporal geochemical evolution of the Andean subarc mantle Diques lamprofídicos de olivino-hornblenda de la quebrada los Sapos, El Teniente, Chile central (34°S: implicancias para la evolución temporal de la geoquímica del manto subarco Andino

Directory of Open Access Journals (Sweden)

Charles R Stern

2011-01-01

Full Text Available Mafic Mg-olivine (Fo884-hornblende lamprophyre dikes, with Ni -190 ppm and Cr -390 ppm, cut late Miocene lavas in the Quebrada los Sapos a few kilometers west of the El Teniente Cu-Mo mine. These dikes have petro-chemical affinities with other less primitive, Pliocene (2.9-3.9 Ma, olivine-free lamprophyres previously described from both within and in the vicinity of El Teniente. The mafic mantle-derived lamprophyre dikes from Quebrada los Sapos have La/Yb ratios of 10-13, higher than the ratios of 4-9 for older Late Miocene El Teniente Mafic Complex olivine basalts, suggesting a temporal decrease in the percent of partial mantle melting, consistent with the observed decrease in the volume of igneous rocks through time at this latitude, as well as the ultímate cessation of magmatism and >40 km eastward are migration by the Late Pliocene. Less primitive olivine-free lamprophyres have higher La and lower Yb, resulting in higher La/Yb ratios of 15-44, due to crystal-liquid fractionation involving hornblende, but not plagioclase, the crystallization of which is suppressed by the high H2O contents of the lamprophyres. The lamprophyre dikes, as well as younger (1.8-2.3 Ma olivine-bearing basaltic-andesite lava flows in the valley of the Cachapoal river, have 87Sr/86Sr=0.7041 to 0.7049, or = +1.2 to -1.1 and 206Pb/204Pb=18.60 to 18.68, while Middle to Late Miocene (6.5-13.9 Ma El Teniente Volcanic and Plutonic Complex igneous rocks have lower 87Sr/86Sr=0.7039 to 0.7041 and 206Pb/204Pb=18.56 to 18.59, and higher G =+1.9 to +3.8, and older Oligocene to Early Miocene (>15 Ma Abanico or Coya-Machalí Formation volcanic and plutonic rocks in the region have even lower 87Sr/86Sr=0.7033 to 0.7039 and 206Pb/204Pb=18.45 to 18.57, and higher G Nd=+3.8 to +6.2. The data indicate a significant progressive temporal evolution, between the Oligocene and the Pliocene, to higher 87Sr/86Sr and 206Pb/204Pb, and lower for mantle-derived mafic magmas, and by implication
Raptor Use of the Rio Grande Gorge

Energy Technology Data Exchange (ETDEWEB)

Ponton, David A. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

2015-03-20

The Rio Grande Gorge is a 115 km long river canyon located in Southern Colorado (15 km) and Northern New Mexico (100 km). The majority of the canyon is under the administration of the Bureau of Land Management {BLM), and 77 km of the canyon south of the Colorado/New Mexico border are designated Wild River under the National Wild and Scenic Rivers Act of 1968. Visits I have made to the Rio Grande Gorge over the past 15 .years disclosed some raptor utilization. As the Snake River Birds of Prey Natural Area gained publicity, its similarity to the Rio Grande Gorge became obvious, and I was intrigued by the possibility of a high raptor nesting density in the Gorge. A survey in 1979 of 20 km of the northern end of the canyon revealed a moderately high density of red-tailed hawks and prairie falcons. With the encouragement of that partial survey, and a need to assess the impact of river-running on nesting birds of prey, I made a more comprehensive survey in 1980. The results of my surveys, along with those of a 1978 helicopter survey by the BLM, are presented in this report, as well as general characterization of the area, winter use by raptors, and an assessment of factors influencing the raptor population.
Grand Minima: Is The Sun Going To Sleep?

Science.gov (United States)

Mcintosh, S. W.; Leamon, R. J.

2014-12-01

We explore recent observational work which indicate that the energetics of the sun's outer atmosphere have been on a steady decline for the past decade and perhaps longer. Futher, we show that new investigations into evolution of the Sun's global magnetic activity appear to demonstrate a path through which the Sun can go into, and exit from, a grand activity minimum without great difficulty while retaining an activity cycle - only losing sunspots. Are we at the begining of a new grand(-ish) minimum? Naturally, only time will tell, but the observational evidence hint that one may not be far off to what impact on the Sun-Earth Connection.
Guidebook to Rio Grande rift in New Mexico

Science.gov (United States)

Hawley, J.W.

1978-01-01

Discusses the details of geologic features along the rift zone. Included are short papers on topics relative to the overall region. These papers and the road logs are of special interest to any one pursuing further study of the rift. This book is a comprehensive guide to the middle and late Cenozoic geology of the Rio Grande region of Colorado and New Mexico. Though initially used on field trips for the International Symposium on Tectonics and Magmatism of the Rio Grande rift, the guidebook will be useful to anyone interested in the Cenozoic history of the 600-mi-long area extending from central Colorado to El Paso, Texas.
Carbonaceous aerosol particles from common vegetation in the Grand Canyon

International Nuclear Information System (INIS)

Hallock, K.A.; Mazurek, M.A.; Cass, G.R.

1992-05-01

The problem of visibility reduction in the Grand Canyon due to fine organic aerosol particles in the atmosphere has become an area of increased environmental concern. Aerosol particles can be derived from many emission sources. In this report, we focus on identifying organic aerosols derived from common vegetation in the Grand Canyon. These aerosols are expected to be significant contributors to the total atmospheric organic aerosol content. Aerosol samples from living vegetation were collected by resuspension of surface wax and resin components liberated from the leaves of vegetation common to areas of the Grand Canyon. The samples were analyzed using high-resolution gas chromatography/mass spectrometry (GC/MS). Probable identification of compounds was made by comparison of sample spectra with National Institute of Standards and Technology (NIST) mass spectral references and positive identification of compounds was made when possible by comparison with authentic standards as well as NIST references. Using these references, we have been able to positively identify the presence of n-alkane and n-alkanoic acid homolog series in the surface waxes of the vegetation sampled. Several monoterpenes, sesquiterpenes, and diterpenes were identified also as possible biogenic aerosols which may contribute to the total organic aerosol abundance leading to visibility reduction in the Grand Canyon
Geologic map of the Fraser 7.5-minute quadrangle, Grand County, Colorado

Science.gov (United States)

Shroba, Ralph R.; Bryant, Bruce; Kellogg, Karl S.; Theobald, Paul K.; Brandt, Theodore R.

2010-01-01

The geologic map of the Fraser quadrangle, Grand County, Colo., portrays the geology along the western boundary of the Front Range and the eastern part of the Fraser basin near the towns of Fraser and Winter Park. The oldest rocks in the quadrangle include gneiss, schist, and plutonic rocks of Paleoproterozoic age that are intruded by younger plutonic rocks of Mesoproterozoic age. These basement rocks are exposed along the southern, eastern, and northern margins of the quadrangle. Fluvial claystone, mudstone, and sandstone of the Upper Jurassic Morrison Formation, and fluvial sandstone and conglomeratic sandstone of the Lower Cretaceous Dakota Group, overlie Proterozoic rocks in a small area near the southwest corner of the quadrangle. Oligocene rhyolite tuff is preserved in deep paleovalleys cut into Proterozoic rocks near the southeast corner of the quadrangle. Generally, weakly consolidated siltstone and minor unconsolidated sediments of the upper Oligocene to upper Miocene Troublesome Formation are preserved in the post-Laramide Fraser basin. Massive bedding and abundant silt suggest that loess or loess-rich alluvium is a major component of the siltstone in the Troublesome Formation. A small unnamed fault about one kilometer northeast of the town of Winter Park has the youngest known displacement in the quadrangle, displacing beds of the Troublesome Formation. Surficial deposits of Pleistocene and Holocene age are widespread in the Fraser quadrangle, particularly in major valleys and on slopes underlain by the Troublesome Formation. Deposits include glacial outwash and alluvium of non-glacial origin; mass-movement deposits transported by creep, debris flow, landsliding, and rockfall; pediment deposits; tills deposited during the Pinedale and Bull Lake glaciations; and sparse diamictons that may be pre-Bull Lake till or debris-flow deposits. Some of the oldest surficial deposits may be as old as Pliocene.
Grande do Sul, Brasil

Directory of Open Access Journals (Sweden)

Denis Alcides-Rezende

2008-01-01

Full Text Available The objective of this work is to analyse the integration of information systems and information technology resources in the municipal planning of 14 small cities of Rio Grande do Sul (Brazil. The research methodology consisted of a multiple case study together with a convenient non-probabilistic sample chosen through a research protocol. The results demonstrate the difficulties of these cities to organise the municipal data as well as their struggle for accessibility of information and planning for management and control.
Mitigation measures for the La Grande 1 hydroelectric development

International Nuclear Information System (INIS)

Faucher, O.; Gagnon, R.

1992-01-01

Measures to mitigate environmental impacts of the La Grande 1 hydroelectric development are described. An overview is presented of the La Grande 1 project, its surrounding environment, and the principle environmental repercussions of the reservoir, hydrological changes between the dam and river mouth, construction activities and permanent and temporary structures, and presence of workers. Mitigation measures including compensation, corrective measures (deforestation, selective cutting, fish populations, wildlife populations, land rehabilitation, access roads, fisheries, and erosion control), protective measures, enhancement measures, and contract and employment opportunities for the Cree population are described. 10 refs., 2 figs
Aplicación de los índices NSF, DINIUS y BMWP para el análisis de la calidad de agua de la Quebrada La Ayurá, Antioquia Colombia

Directory of Open Access Journals (Sweden)

Orlando Caicedo Quintero

2013-06-01

Full Text Available En esta investigación se evaluó la calidad de agua de la quebrada la Ayurá en Envigado- Antioquia Colombia, mediante la aplicación de los índices de Calidad de la Fundación Nacional de Saneamiento (INSF, de calidad de Dinius y el índice biótico BMWP. La estimación de estos índices se efectuó con información recolectada en tres sitios durante tres muestreos. Se determinaron variables fisicoquímicas y microbiológicas, además se realizaron muestreos cualitativos y cuantitativos de macroinvertebrados acuáticos. El empleo de esta metodología permitió conocer el comportamiento fisicoquímico y de la comunidad biológica en los diferentes sitios. Los resultados fisicoquímicos, microbiológicos, macroinvertebrados acuáticos y de los índices indicaron que en la estación 1 se presenta una buena calidad del agua y en las estaciones 2 y 3 un deterioro medio de la calidad del agua. PALABRAS CLAVES: Quebrada la Ayurá, Calidad del agua, Índices de calidad, Índices bióticos, oxigeno disuelto, macroinvertebrados acuáticos.
Comprehensive District Reform: Philadelphia's Grand Experiment.

Science.gov (United States)

Useem, Elizabeth; Balfanz, Robert

2002-01-01

This report describes "Philadelphia's Grand Experiment" in comprehensive school district reform, from its conception through its initial months of implementation. In 2001, as part of the remedy for low student performance, the governor ordered the state to take over governance of the Philadelphia School District, with a substantial…
Environmental assessment of facility operations at the U.S. Department of Energy Grand Junction Projects Office, Grand Junction, Colorado

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-06-01

The US Department of Energy (DOE) has prepared a sitewide environmental assessment (EA) of the proposed action to continue and expand present-day activities on the DOE Grand Junction Projects Office (GJPO) facility in Grand Junction, Colorado. Because DOE-GJPO regularly proposes and conducts many different on-site activities, DOE decided to evaluate these activities in one sitewide EA rather than in multiple, activity-specific documents. On the basis of the information and analyses presented in the EA, DOE has determined that the proposed action does not constitute a major Federal action significantly affecting the quality of the human environment, as defined by the National Environmental Policy Act (NEPA) of 1969. Therefore, preparation of an environmental impact statement is not required for facility operations, and DOE is issuing this Finding of No Significant Impact (FONSI).
Environmental assessment of facility operations at the U.S. Department of Energy Grand Junction Projects Office, Grand Junction, Colorado

International Nuclear Information System (INIS)

1996-06-01

The US Department of Energy (DOE) has prepared a sitewide environmental assessment (EA) of the proposed action to continue and expand present-day activities on the DOE Grand Junction Projects Office (GJPO) facility in Grand Junction, Colorado. Because DOE-GJPO regularly proposes and conducts many different on-site activities, DOE decided to evaluate these activities in one sitewide EA rather than in multiple, activity-specific documents. On the basis of the information and analyses presented in the EA, DOE has determined that the proposed action does not constitute a major Federal action significantly affecting the quality of the human environment, as defined by the National Environmental Policy Act (NEPA) of 1969. Therefore, preparation of an environmental impact statement is not required for facility operations, and DOE is issuing this Finding of No Significant Impact (FONSI)
MUCHO MÁS QUE SÓLO APROVISIONAMIENTO LÍTICO: ACTIVIDADES EN CANTERAS Y PRÁCTICAS SOCIALES EN LAS FUENTES DE PAMPA OESTE, QUEBRADA SECA Y PUNTA DE LA PEÑA (ANTOFAGASTA DE LA SIERRA, CATAMARCA / Much more than just lithic procurement: activities at quarrie

Directory of Open Access Journals (Sweden)

Federico Miguel Bobillo

2015-06-01

Full Text Available En este trabajo se abordan las canteras y talleres asociados de Punta de la Peña, Quebrada Seca y Pampa Oeste, en Antofagasta de la Sierra (Catamarca, con el objeto de explorar la multiplicidad de actividades y prácticas sociales involucradas en la utilización de dichas fuentes. Se trata de tres fuentes de vulcanitas intensamente explotadas a lo largo de la secuencia prehispánica del área. De esta forma, se toma a las canteras no sólo como un depósito de rocas útiles para la subsistencia, sino como un escenario social donde confluyen y se materializan diferentes prácticas y expresiones sociales. Así, a la explotación de las rocas se suman toda una serie de tareas vinculadas, por ejemplo, con prácticas de enseñanza/aprendizaje y actividades de subsistencia, procesamiento/consumo y rituales. Esta aproximación considera a las canteras desde una perspectiva orientada a abordar las elecciones y prácticas llevadas a cabo por los agentes en contextos de aprovisionamiento, partiendo de la base de que estos actúan desarrollando una diversidad de actividades conectadas en torno a la apropiación de un recurso específico.Abstract Quarries and workshops at Punta de la Peña, Quebrada Seca and Pampa Oeste (Antofagasta de la Sierra, Catamarca are considered in this paper. The goal is to explore the multiplicity of social activities and practices involved in the use of these quarries. These three vulcanite sources were intensively exploited during the pre-Hispanic history of the region. In this way, quarries are not only considered rock deposits useful for subsistence, but also a social scenario where different social practices and social expressions converge and are materialized. Thereby, series of linked tasks are added to rock exploitation. For example, teaching/learning practices and subsistence, processing/consumption and ritual activities. This approach considers quarries from a perspective oriented to the analysis of elections and

GrandBase: generating actionable knowledge from Big Data

Directory of Open Access Journals (Sweden)

Xiu Susie Fang

2017-08-01

Full Text Available Purpose – This paper aims to propose a system for generating actionable knowledge from Big Data and use this system to construct a comprehensive knowledge base (KB, called GrandBase. Design/methodology/approach – In particular, this study extracts new predicates from four types of data sources, namely, Web texts, Document Object Model (DOM trees, existing KBs and query stream to augment the ontology of the existing KB (i.e. Freebase. In addition, a graph-based approach to conduct better truth discovery for multi-valued predicates is also proposed. Findings – Empirical studies demonstrate the effectiveness of the approaches presented in this study and the potential of GrandBase. The future research directions regarding GrandBase construction and extension has also been discussed. Originality/value – To revolutionize our modern society by using the wisdom of Big Data, considerable KBs have been constructed to feed the massive knowledge-driven applications with Resource Description Framework triples. The important challenges for KB construction include extracting information from large-scale, possibly conflicting and different-structured data sources (i.e. the knowledge extraction problem and reconciling the conflicts that reside in the sources (i.e. the truth discovery problem. Tremendous research efforts have been contributed on both problems. However, the existing KBs are far from being comprehensive and accurate: first, existing knowledge extraction systems retrieve data from limited types of Web sources; second, existing truth discovery approaches commonly assume each predicate has only one true value. In this paper, the focus is on the problem of generating actionable knowledge from Big Data. A system is proposed, which consists of two phases, namely, knowledge extraction and truth discovery, to construct a broader KB, called GrandBase.
Lower Grande Ronde smolt trap monitoring. Annual report 1996

International Nuclear Information System (INIS)

Setter, A.; Carmichael, R.W.

1998-01-01

The authors sampled downstream migrating salmonids at Boggan's Oasis in the Grande Ronde River with a screw trap during 1995 and a scoop trap during 1996. Sampling began in March and terminated early in June. Wild spring chinook and wild/hatchery steelhead were collected and marked to assess migration patterns and timing. Fish were marked with tags in order to obtain downstream migration data with minimal fish handling. Observations were recorded when a fish swam through an interrogation monitor at hydroelectric facilities downstream. The second year for monitoring smolts leaving the Grande Ronde River was completed in 1995. The authors continued to pursue moving to a permanent location downstream for 1997 because of the limitations for trapping smolts at Boggan's Oasis. This involved reconnaissance surveys of several potential sites near the mouth of the river from 1994--1996. During February of 1996, a water velocity and bottom topography assessment was completed. Results of the assessment were used for siting the anchoring tower structure upstream approximately 1.2 miles from the mouth of the Grande Ronde River
Simulations of Precipitation Variability over the Upper Rio Grande Basin

International Nuclear Information System (INIS)

Costigan, Keeley R.; Bossert, James E.; Langley, David L.

1997-10-01

In this research, we study Albuquerque's water and how it may be affected by changes in the regional climate, as manifested by variations in Rio Grande water levels. To do this, we rely on the use of coupled atmospheric, runoff, and ground water models. Preliminary work on the project has focused on uncoupled simulations of the aquifer beneath Albuquerque and winter precipitation simulations of the upper Rio Grande Basin. The latter is discussed in this paper
GAS SURFACE DENSITY, STAR FORMATION RATE SURFACE DENSITY, AND THE MAXIMUM MASS OF YOUNG STAR CLUSTERS IN A DISK GALAXY. II. THE GRAND-DESIGN GALAXY M51

International Nuclear Information System (INIS)

González-Lópezlira, Rosa A.; Pflamm-Altenburg, Jan; Kroupa, Pavel

2013-01-01

We analyze the relationship between maximum cluster mass and surface densities of total gas (Σ gas ), molecular gas (Σ H 2 ), neutral gas (Σ H I ), and star formation rate (Σ SFR ) in the grand-design galaxy M51, using published gas data and a catalog of masses, ages, and reddenings of more than 1800 star clusters in its disk, of which 223 are above the cluster mass distribution function completeness limit. By comparing the two-dimensional distribution of cluster masses and gas surface densities, we find for clusters older than 25 Myr that M 3rd ∝Σ H I 0.4±0.2 , whereM 3rd is the median of the five most massive clusters. There is no correlation withΣ gas ,Σ H2 , orΣ SFR . For clusters younger than 10 Myr, M 3rd ∝Σ H I 0.6±0.1 and M 3rd ∝Σ gas 0.5±0.2 ; there is no correlation with either Σ H 2 orΣ SFR . The results could hardly be more different from those found for clusters younger than 25 Myr in M33. For the flocculent galaxy M33, there is no correlation between maximum cluster mass and neutral gas, but we have determined M 3rd ∝Σ gas 3.8±0.3 , M 3rd ∝Σ H 2 1.2±0.1 , and M 3rd ∝Σ SFR 0.9±0.1 . For the older sample in M51, the lack of tight correlations is probably due to the combination of strong azimuthal variations in the surface densities of gas and star formation rate, and the cluster ages. These two facts mean that neither the azimuthal average of the surface densities at a given radius nor the surface densities at the present-day location of a stellar cluster represent the true surface densities at the place and time of cluster formation. In the case of the younger sample, even if the clusters have not yet traveled too far from their birth sites, the poor resolution of the radio data compared to the physical sizes of the clusters results in measuredΣ that are likely quite diluted compared to the actual densities relevant for the formation of the clusters.
Light grand unified theory triplets and Yukawa splitting

International Nuclear Information System (INIS)

Rakshit, Subhendu; Shadmi, Yael; Raz, Guy; Roy, Sourov

2004-01-01

Triplet-mediated proton decay in grand unified theories (GUTs) is usually suppressed by arranging a large triplet mass. Here we explore instead a mechanism for suppressing the couplings of the triplets to the first and second generations compared to the Yukawa couplings, so that the triplets can be light. This mechanism is based on a 'triplet symmetry' in the context of product-group GUTs. We study two possibilities. The first possibility, which requires the top Yukawa coupling to arise from a nonrenormalizable operator at the GUT scale, is that all triplet couplings to matter are negligible, so that the triplets can be at the weak scale, giving new evidence for grand unification. The second possibility is that some triplet couplings, and in particular Ttb and Tt-barl-bar, are equal to the corresponding Yukawa couplings. This would give a distinct signature of grand unification if the triplets were sufficiently light. However, we derive a model-independent bound on the triplet mass in this case, which is at least 10 6 GeV. Finally, we construct an explicit viable GUT model based on Yukawa splitting, with the triplets at 10 14 GeV, as required for coupling unification to work. This model requires no additional thresholds below the GUT scale
A Nurse-Led Innovation in Education: Implementing a Collaborative Multidisciplinary Grand Rounds.

Science.gov (United States)

Matamoros, Lisa; Cook, Michelle

2017-08-01

Multidisciplinary grand rounds provides an opportunity to promote excellence in patient care through scholarly presentations and interdisciplinary collaboration with an innovative approach. In addition, multidisciplinary grand rounds serves to recognize expertise of staff, mentor and support professional development, and provide a collaborative environment across all clinical disciplines and support services. This article describes a process model developed by nurse educators for implementing a multidisciplinary grand rounds program. The components of the process model include topic submissions, coaching presenters, presentations, evaluations, and spreading the work. This model can be easily implemented at any organization. J Contin Educ Nurs. 2017;48(8):353-357. Copyright 2017, SLACK Incorporated.
Birds of the Reserva Biológica do Mato Grande and surroundings, Rio Grande do Sul, Brazil

DEFF Research Database (Denmark)

Vizentin-Bugoni, Jeferson; Jacobs, Fernando; Coimbra, Marco Antônio Afonso

2015-01-01

The Reserva Biológica do Mato Grande encompasses 5,161 hectares of wetlands, restinga forests and grasslands in southern Brazil. Aiming to assemble a list of bird species occurring in the reserve, we carried out 21 monthly expeditions from July 2007 to March 2009 and an additional visit on October...
Reisipakkumine - Grand Tour Itaalias / Mai Levin

Index Scriptorium Estoniae

Levin, Mai, 1942-

2009-01-01

Tiina Abeli koostatud ja Urmas Viigi kujundatud näitus "Grand Tour. Eesti kunstnikud Itaalias" Kumu Kunstimuuseumis 05. aprillini. Loetletud eksponeeritud tööde autoreid. Näitus annab ülevaate, kes siinsetest kunstnikest 19. sajandi algusest kuni 1930ndate aastateni Itaalias käisid ja kuidas see nende loomingut mõjutas
Falares: a oralidade como elemento construtor da grande-reportagem

OpenAIRE

Alex Criado

2006-01-01

Esta tese discute a incorporação da oralidade de falantes excluídos social e culturalmente na grande-reportagem. O foco desta pesquisa é refletir como a grande-reportagem no Brasil, em sua missão de desvendamento do real, tem lidado com a questão da oralidade. Discute os desafios para a incorporação dos registros orais de pessoas com baixa escolaridade, tendo em vista o preconceito que existe na sociedade em relação aos falantes que se utilizam de modalidades diferentes da língua padrão. Prop...
Sudden transitions and grand variations in the solar dynamo, past and future☆

Directory of Open Access Journals (Sweden)

De Jager Cornelis

2012-06-01

Full Text Available The solar dynamo is the exotic dance of the sun’s two major magnetic field components, the poloidal and the toroidal, interacting in anti-phase. On the basis of new data on the geomagnetic aa index, we improve our previous forecast of the properties of the current Schwabe cycle #24. Its maximum will occur in 2013.5 and the maximum sunspot number Rmax will then be 62 ± 12, which is within the bounds of our earlier forecasts. The subsequent analysis, based on a phase diagram, which is a diagram showing the relation between maximum sunspot numbers and minimum geomagnetic aa index values leads to the conclusion that a new Grand Episode in solar activity has started in 2008. From the study of the natural oscillations in the sunspot number time series, as found by an analysis based on suitable wavelet base functions, we predict that this Grand Episode will be of the Regular Oscillations type, which is the kind of oscillations that also occurred between 1724 and 1924. Previous expectations of a Grand (Maunder-type Minimum of solar activity cannot be supported. We stress the significance of the Hallstatt periodicity for determining the character of the forthcoming Grand Episodes. No Grand Minimum is expected to occur during the millennium that has just started.
Nalisis Kinerja Keuangan pada PT. Grand Victoria Hotel di Samarinda

OpenAIRE

-, Atmajaya -

2013-01-01

Based on the results of analysis show that the performance of PT. Hotel Grand Victorian is measured using liquidity ratios and profitability ratios decreased from 2010-2012. Performance PT. Grand Victorian is measured using the liquidity ratio has decreased from year 2010-2012 consists of current ratio has decreased, and this is because the total current assets has increased and decreased. Meanwhile, the cash ratio from year 2010-2012 has increased, this is because the total cash and cash equ...
Test of hadronic interaction models with the KASCADE-Grande muon data

Directory of Open Access Journals (Sweden)

Schieler H.

2013-06-01

Full Text Available KASCADE-Grande is an air-shower observatory devoted for the detection of cosmic rays with energies in the interval of 1014 – 1018 eV, where the Grande array is responsible for the higher energy range. The experiment comprises different detection systems which allow precise measurements of the charged, electron and muon numbers of extensive air-showers (EAS. These data is employed not only to reconstruct the properties of the primary cosmic-ray particle but also to test hadronic interaction models at high energies. In this contribution, predictions of the muon content of EAS from QGSJET II-2, SIBYLL 2.1 and EPOS 1.99 are confronted with the experimental measurements performed with the KASCADE-Grande experiment in order to test the validity of these hadronic models commonly used in EAS simulations.
LEP constraints on grand unified theories

International Nuclear Information System (INIS)

Sarkar, Utpal

1993-01-01

Recent developments on grand unified theories (GUTs) in the context of the LEP measurements of the coupling constants are reviewed. The three coupling constants at the electroweak scale have been measured at LEP quite precisely. One can allow these couplings to evolve with energy following the renormalization group equations for the various groups and find out whether all the coupling constants meet at any energy. It was pointed out that the minimal SU(5) grand unified theory fails to satisfy this test. However, various extensions of the theory are still allowed. These extensions include (i) supersymmetric SU(5) GUT, with some arbitrariness in the susy breaking scale arising from the threshold corrections, (ii) non-susy SU(5) GUTs with additional fermions as well as Higgs multiplets, which has masses of the order of TeV, and (iii) non-renormalizable effect of gravity with a fine tuned relation among the coupling constants at the unification energy. The LEP results also constrain GUTs with an intermediate symmetry breaking scale. By adjusting the intermediate symmetry breaking scale, one usually can have unification, but these theories get constrained. For example, the left-right symmetric theories coming from GUTs can be broken only at energies higher than about ∼10 10 GeV. This implies that if right handed gauge bosons are found at energies lower than this scale, then that will rule out the possibility of grand unification. Another recent interesting development on the subject, namely, low energy unification, is discussed in this context. All the coupling constants are unified at energies of the order of ∼10 8 GeV when they are embedded in an SU(15)GUT, with some particular symmetry breaking pattern. But even in this case the results of the intermediate symmetry breaking scale remain unchanged. (author). 16 refs., 3 figs
Triagem de hemoglobinopatias em doadores de sangue de Caxias do Sul, Rio Grande do Sul, Brasil: prevalência em área de colonização italiana Screening for hemoglobinopathies in blood donors from Caxias do Sul, Rio Grande do Sul, Brazil: prevalence in an Italian colony

Directory of Open Access Journals (Sweden)

Cristina Lucia Alberti Lisot

2004-12-01

Full Text Available A alta prevalência de beta-talassemia em italianos e a participação dos mesmos na formação étnica da cidade de Caxias do Sul e arredores, Rio Grande do Sul, Brasil, conduziram-nos à investigação de hemoglobinopatias em uma amostra de 608 doadores de sangue do Hemocentro Regional de Caxias do Sul. Apesar da influência étnica, encontramos 1,81% de hemoglobinas anormais (0,16% Hb AC, 0,99%, Hb AS e 0,66% Hb AH, um padrão similar com o estudo do interior do Estado do Rio Grande do Sul para alterações qualitativas. Para as talassemias, as técnicas mais comuns, cruzadas com seqüenciamento de DNA, em nossas mãos, não foram capazes de esclarecer anormalidades quantitativas da hemoglobina. Esse resultado pode ser atribuído a alterações genéticas ainda não conhecidas, a limitações técnicas ou, mais simplesmente, à miscigenação.The high prevalence of beta thalassemia among Italians and their participation in the ethnic formation of Caxias do Sul, Rio Grande do Sul State, Brazil, and neighboring cities prompted us to investigate hemoglobinopathies in 608 blood donors at the Caxias do Sul Regional Blood Center. Despite the ethnic influence, abnormal hemoglobin levels were found in only 1.81% of the donors (0.16% Hb AC, 0.99% Hb AS, and 0.66% Hb AH, similar to the levels observed in a study on qualitative disorders conducted in the rural area of Rio Grande do Sul. In our setting, the most commonly used screening tests for thalassemia, combined with DNA sequencing, were unable to detect quantitative hemoglobin synthesis disorders. This may be attributable to still-unknown genetic disorders, technical limitations, or simply to miscegenation.
US DOE Grand Challenge in Computational Accelerator Physics

International Nuclear Information System (INIS)

Ryne, R.; Habib, S.; Qiang, J.; Ko, K.; Li, Z.; McCandless, B.; Mi, W.; Ng, C.; Saparov, M.; Srinivas, V.; Sun, Y.; Zhan, X.; Decyk, V.; Golub, G.

1998-01-01

Particle accelerators are playing an increasingly important role in basic and applied science, and are enabling new accelerator-driven technologies. But the design of next-generation accelerators, such as linear colliders and high intensity linacs, will require a major advance in numerical modeling capability due to extremely stringent beam control and beam loss requirements, and the presence of highly complex three-dimensional accelerator components. To address this situation, the U.S. Department of Energy has approved a ''Grand Challenge'' in Computational Accelerator Physics, whose primary goal is to develop a parallel modeling capability that will enable high performance, large scale simulations for the design, optimization, and numerical validation of next-generation accelerators. In this paper we report on the status of the Grand Challenge
Grande Ronde Basin Spring Chinook Salmon Captive Broodstock Program, 1995-2002 Summary Report.

Energy Technology Data Exchange (ETDEWEB)

Hoffnagle, Timothy; Carmichael, Richard; Noll, William

2003-12-01

The Grande Ronde Basin once supported large runs of chinook salmon Oncorhynchus tshawytscha and estimated peak escapements in excess of 10,000 occurred as recently as the late 1950's (U.S. Army Corps of Engineers 1975). Natural escapement declines in the Grande Ronde Basin have been severe and parallel those of other Snake River populations. Reduced productivity has primarily been attributed to increased mortality associated with downstream and upstream migration past eight dams and reservoirs in the Snake and Columbia rivers. Reduced spawner numbers, combined with human manipulation of previously important spawning and rearing habitat in the Grande Ronde Basin, have resulted in decreased spawning distribution and population fragmentation of chinook salmon in the Grande Ronde Basin (Figure 1; Table 1). Escapement of spring/summer chinook salmon in the Snake River basin included 1,799 adults in 1995, less than half of the previous record low of 3,913 adults in 1994. Catherine Creek, Grande Ronde River and Lostine River were historically three of the most productive populations in the Grande Ronde Basin (Carmichael and Boyce 1986). However, productivity of these populations has been poor for recent brood years. Escapement (based on total redd counts) in Catherine Creek and Grande Ronde and Lostine rivers dropped to alarmingly low levels in 1994 and 1995. A total of 11, 3 and 16 redds were observed in 1994 in Catherine Creek, upper Grande Ronde River and Lostine River, respectively, and 14, 6 and 11 redds were observed in those same streams in 1995. In contrast, the maximum number of redds observed in the past was 505 in Catherine Creek (1971), 304 in the Grande Ronde River (1968) and 261 in 1956 in the Lostine River (Tranquilli et al 2003). Redd counts for index count areas (a standardized portion of the total stream) have also decreased dramatically for most Grande Ronde Basin streams from 1964-2002, dropping to as low as 37 redds in the 119.5 km in the index
Méthode d'estimation des tassements des sols fins sous les remblais d'infrastructures ferroviaires pour lignes à grande vitesse

Science.gov (United States)

Said Alami, Soukaina; Reiffsteck, Philippe; Cuira, Fahd

2018-02-01

Le besoin de maîtriser les déformations des sols sous les remblais destinés à recevoir les structures de lignes à grande vitesse, en fait un enjeu important pour ces projets. Toutefois, de nombreuses difficultés ont été soulevées liées principalement au grand nombre d'incertitudes qui entourent le phénomène. En effet, la caractérisation géologique et géotechnique dépend de sondages et d'essais où le risque de remaniement est important et dont l'interprétation est, souvent, délicate. Cet article présente une procédure de calcul qui permettrait en pratique d'évaluer le tassement sous remblai avec une bonne précision et qui a été validée sur un certain nombre d'ouvrages. Pour cela, des corrections sont introduites aux méthodes usuelles de calcul permettant d'approcher les valeurs mesurées sur chantier.
Severe accident sequences simulated at the Grand Gulf Nuclear Station

International Nuclear Information System (INIS)

Carbajo, J.J.

1999-01-01

Different severe accident sequences employing the MELCOR code, version 1.8.4 QK, have been simulated at the Grand Gulf Nuclear Station (Grand Gulf). The postulated severe accidents simulated are two low-pressure, short-term, station blackouts; two unmitigated small-break (SB) loss-of-coolant accidents (LOCAs) (SBLOCAs); and one unmitigated large LOCA (LLOCA). The purpose of this study was to calculate best-estimate timings of events and source terms for a wide range of severe accidents and to compare the plant response to these accidents
Panel - Rio Grande restoration: Future directions

Science.gov (United States)

Deborah M. Finch; Pete V. Domenici; Jeffrey. C. Whitney; Steve Harris; Brian Shields; Clifford S. Crawford

1996-01-01

The purpose of this panel was to discuss historical and current changes to the Rio Grande system, focusing on the middle Basin, and to present and review different individual, organizational, and political perspectives on the future of the system. Invitations were made to panelists based on their past and current interests and activities pertaining to restoration of...
Engineering assessment of inactive uranium mill tailings, Grand Junction site, Grand Junction, Colorado. Phase II, Title I

Energy Technology Data Exchange (ETDEWEB)

None

1977-10-01

Ford, Bacon and Davis Utah Inc. has performed an engineering assessment of the problems resulting from the existence of radioactive uranium mill tailings at Grand Junction, Colorado. The Phase II, Title I services include the preparation of topographic maps, the performance of core drillings and radiometric measurements sufficient to determine areas and volumes of tailings and radiation exposures of individuals and nearby populations, the investigation of site hydrology and meteorology and the evaluation and costing of alternative corrective actions. Radon gas release from the 1.9 million tons of tailings at the Grand Junction site constitutes the most significant environmental impact, although windblown tailings and external gamma radiation are also factors. The eight alternative actions presented range from millsite decontamination (Option I), to adding various depths of stabilization cover material (Options II and III), to removal of the tailings to long-term storage sites and decontamination of the present site (Options IV through VIII). Cost estimates for the eight options range from $470,000 to $18,130,000. Reprocessing the tailings for uranium recovery does not appear to be economically attractive at present.

Engineering assessment of inactive uranium mill tailings, Grand Junction site, Grand Junction, Colorado. Phase II, Title I

International Nuclear Information System (INIS)

1977-10-01

Ford, Bacon and Davis Utah Inc. has performed an engineering assessment of the problems resulting from the existence of radioactive uranium mill tailings at Grand Junction, Colorado. The Phase II, Title I services include the preparation of topographic maps, the performance of core drillings and radiometric measurements sufficient to determine areas and volumes of tailings and radiation exposures of individuals and nearby populations, the investigation of site hydrology and meteorology and the evaluation and costing of alternative corrective actions. Radon gas release from the 1.9 million tons of tailings at the Grand Junction site constitutes the most significant environmental impact, although windblown tailings and external gamma radiation are also factors. The eight alternative actions presented range from millsite decontamination (Option I), to adding various depths of stabilization cover material (Options II and III), to removal of the tailings to long-term storage sites and decontamination of the present site (Options IV through VIII). Cost estimates for the eight options range from $470,000 to $18,130,000. Reprocessing the tailings for uranium recovery does not appear to be economically attractive at present
Microbial contamination and chemical toxicity of the Rio Grande

Directory of Open Access Journals (Sweden)

Valles Adrian

2004-04-01

Full Text Available Abstract Background The Rio Grande River is the natural boundary between U.S. and Mexico from El Paso, TX to Brownsville, TX. and is one of the major water resources of the area. Agriculture, farming, maquiladora industry, domestic activities, as well as differences in disposal regulations and enforcement increase the contamination potential of water supplies along the border region. Therefore, continuous and accurate assessment of the quality of water supplies is of paramount importance. The objectives of this study were to monitor water quality of the Rio Grande and to determine if any correlations exist between fecal coliforms, E. coli, chemical toxicity as determined by Botsford's assay, H. pylori presence, and environmental parameters. Seven sites along a 112-Km segment of the Rio Grande from Sunland Park, NM to Fort Hancock, TX were sampled on a monthly basis between January 2000 and December 2002. Results The results showed great variability in the number of fecal coliforms, and E. coli on a month-to-month basis. Fecal coliforms ranged between 0–106 CFU/100 ml while E. coli ranged between 6 to > 2419 MPN. H. pylori showed positive detection for all the sites at different times. Toxicity ranged between 0 to 94% of inhibition capacity (IC. Since values above 50% are considered to be toxic, most of the sites displayed significant chemical toxicity at different times of the year. No significant correlations were observed between microbial indicators and chemical toxicity. Conclusion The results of the present study indicate that the 112-Km segment of the Rio Grande river from Sunland Park, NM to Fort Hancock, TX exceeds the standards for contact recreation water on a continuous basis. In addition, the presence of chemical toxicity in most sites along the 112-Km segment indicates that water quality is an area of concern for the bi-national region. The presence of H. pylori adds to the potential health hazards of the Rio Grande. Since no
Recovery from Maunder-like Grand Minima in a Babcock–Leighton Solar Dynamo Model

Science.gov (United States)

Karak, Bidya Binay; Miesch, Mark

2018-06-01

The Sun occasionally goes through Maunder-like extended grand minima when its magnetic activity drops considerably from the normal activity level for several decades. Many possible theories have been proposed to explain the origin of these minima. However, how the Sun managed to recover from such inactive phases every time is even more enigmatic. The Babcock–Leighton type dynamos, which are successful in explaining many features of the solar cycle remarkably well, are not expected to operate during grand minima due to the lack of a sufficient number of sunspots. In this Letter, we explore the question of how the Sun could recover from grand minima through the Babcock–Leighton dynamo. In our three-dimensional dynamo model, grand minima are produced spontaneously as a result of random variations in the tilt angle of emerging active regions. We find that the Babcock–Leighton process can still operate during grand minima with only a minimal number of sunspots, and that the model can emerge from such phases without the need for an additional generation mechanism for the poloidal field. The essential ingredient in our model is a downward magnetic pumping, which inhibits the diffusion of the magnetic flux across the solar surface.
Solar Cycle Variability and Grand Minima Induced by Joy's Law Scatter

Science.gov (United States)

Karak, Bidya Binay; Miesch, Mark S.

2017-08-01

The strength of the solar cycle varies from one cycle to another in an irregular manner and the extreme example of this irregularity is the Maunder minimum when Sun produced only a few spots for several years. We explore the cause of these variabilities using a 3D Babcock--Leighton dynamo. In this model, based on the toroidal flux at the base of the convection zone, bipolar magnetic regions (BMRs) are produced with flux, tilt angle, and time of emergence all obtain from their observed distributions. The dynamo growth is limited by a tilt quenching.The randomnesses in the BMR emergences make the poloidal field unequal and eventually cause an unequal solar cycle. When observed fluctuations of BMR tilts around Joy's law, i.e., a standard deviation of 15 degrees, are considered, our model produces a variation in the solar cycle comparable to the observed solar cycle variability. Tilt scatter also causes occasional Maunder-like grand minima, although the observed scatter does not reproduce correct statistics of grand minima. However, when we double the tilt scatter, we find grand minima consistent with observations. Importantly, our dynamo model can operate even during grand minima with only a few BMRs, without requiring any additional alpha effect.
76 FR 6517 - San Luis & Rio Grande Railroad-Petition for a Declaratory Order

Science.gov (United States)

2011-02-04

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

Directory of Open Access Journals (Sweden)

Edson Souza de Azevedo

2008-06-01

Full Text Available The aim of this study is to describe the pedagogical action taken by Physical Education teachers (n=41 from Rio Grande do Sul Federal Technical High Shools (n=12, contextualizing the pedagogical approaches which guide the pedagogical action. The study was an exploratory descriptive one which analyzed the circumstances of the classes and the teachers’actions. The profile presented by teachers shows the interaction of formative, recreational, sportive conceptions. Daily, activities practiced in schools are mostly related to recreational and sportive games, gymnastics and walks. The pedagogical approaches adopted by teachers are the physical activity approach and the humanist approach. As a conclusion, teachers’pedagogical practice is focused on Physical Education teachers’s valorization as a school curricular content and search for changing their practice in qualified healthy activities.
Maternal Grand Multiparity and the Risk of Severe Mental Disorders in Adult Offspring.

Directory of Open Access Journals (Sweden)

Marius Lahti

Full Text Available Previous studies have shown that maternal grand multiparity may predict an increased risk of mental disorders in young adult offspring, but whether such effects persist throughout adulthood remains unknown. The current study examined if maternal grand multiparity predicts the risks of severe mental disorders, suicides, suicide attempts and dementias throughout adult life.Our study sample comprised 13243 Helsinki Birth Cohort Study 1934-1944 participants (6905 men and 6338 women. According to hospital birth records, 341 offspring were born to grand multiparous mothers. From Finnish national hospital discharge and causes of death registers, we identified 1682 participants diagnosed with mental disorders during 1969-2010.Maternal grand multiparity predicted significantly increased risks of mood disorders (Hazard Ratio = 1.64, p = 0.03, non-psychotic mood disorders (Hazard Ratio = 2.02, p = 0.002, and suicide attempts (Hazard Ratio = 3.94, p = 0.01 in adult offspring. Furthermore, women born to grand multiparous mothers had significantly increased risks of any severe mental disorder (Hazard Ratio = 1.79, p = 0.01, non-psychotic substance use disorders (Hazard Ratio = 2.77, p = 0.02 schizophrenia, schizotypal and delusional disorders (Hazard Ratio = 2.40, p = 0.02, mood disorders (Hazard Ratio = 2.40, p = 0.002, non-psychotic mood disorders (Hazard Ratio = 2.91, p<0.001, and suicide attempts (Hazard Ratio = 5.05, p = 0.01 in adulthood. The effects of maternal grand multiparity on offspring psychopathology risk were independent of maternal age and body mass index at childbirth, and of year of birth, sex, childhood socioeconomic position, and birth weight of the offspring. In contrast, no significant effects were found among men.Women born to grand multiparous mothers are at an increased risk of severe mental disorders and suicide attempts across adulthood. Our findings may inform the
La frontera oriental de Humahuaca y sus relaciones con el Chaco

Directory of Open Access Journals (Sweden)

1990-01-01

Full Text Available LA FRONTIERE ORIENTALE DE HUMAHUACA ET SES RELATIONS AVEC LE CHACO : 1595-1650. Ce travail fait connaître les résultats de la recherche ethnohistorique sur les contacts interethniques entre les groupes de la Quebrada de Humahuaca et ceux du Chaco, dans le secteur centre-sud de laire Andine. En plus de cette zone de transition écologico-culturelle, se sont développées plusieurs types de relations interethniques, modifiées à travers les étapes historiques successives : pré-inca, la domination inca et la conquête espagnole. Outre ces relations, les peuples de la Quebrada de Humahuaca ont eu directement accès au piémont amazonien pour lutilisation de ressources complémentaires. El presente trabajo da a conocer los resultados de la investigación etnohistórica sobre los contactos interétnicos entre los grupos de la Quebrada de Humahuaca y los del Chaco, en el sector centro sur del área Andina. Dentro de este ámbito de transición ecológico cultural se desarrollaron diversos tipos de relaciones interétnicas modificadas a través de las distintas etapas históricas: preinca, la dominación inca y la conquista española. Además de estas relaciones, los pueblos de la quebrada de Humahuaca accedieron directamente a la ceja de selva para el aprovechamiento de recursos complementarios. EASTERN FRONTIER AND ETHNIC RELATIONS: HUMAHUACA AND CHACO, (1595-1650. This article presents the results of an etnohistorical research on ethnic relations between the native groups of the Quebrada of Humahuaca and those of the Chaco, in the center-south of Andean Region. In this area of ecological and cultural transition, those groups developed various kinds of ethnic relations, modified through different historical periods: pre-inca, the inca rule, and the Spanish conquest. Besides these relations, the peoples of the Quebrada of Humahuaca had direct access to the eastern slope lands to complement their own agrarian resources.
27 CFR 9.119 - Middle Rio Grande Valley.

Science.gov (United States)

2010-04-01

... Middle Rio Grande Valley. (a) Name. The name of the viticultural area described in this section is... 1979. (24) Veguita, N. Mex. (1952), revised 1979. (25) Wind Mesa, N. Mex. (1952), revised 1967. (c...
Upper Rio Grande water operations model: A tool for enhanced system management

Science.gov (United States)

Gail Stockton; D. Michael Roark

1999-01-01

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

Directory of Open Access Journals (Sweden)

Fonseca Francisco

2003-01-01

Full Text Available Através da análise da opinião dos editoriais dos quatro principais periódicos diários da grande imprensa, isto é, o Jornal do Brasil, O Globo, a Folha de S. Paulo e O Estado de S. Paulo - aqui considerados "aparelhos privados de hegemonia" -, este artigo procura desvendar os posicionamentos adotados perante a ordem social na Constituinte de 1987/1988, que também contribuem para compreender a reação à Consolidação das Leis do Trabalho. Observa-se, além do mais, as estratégias utilizadas para sua consecução. Conclui-se que, por mecanismos diversos, a grande imprensa contribuiu decisivamente para a introdução da agenda ideológica neoliberal no país, pois atuou de forma a "divulgar e vulgarizar" as idéias pertinentes a este ideário e de forma militantemente conservadora e patronal.
Final Environmental Assessment: Installation of Digital Airport Surveillance Radar at Grand Forks Air Force Base, North Dakota

Science.gov (United States)

2011-05-11

Grand Forks AFB public web site. Notices of Availability were published in the Grand Forks Herald on 10 Mar 2011 and on the Grand Forks AFB web site from...Squadron (319th) FTA Fire Training Area GATR Ground-Air Transmit Receive GFAFB Grand Forks Air Force Base GHG Greenhouse Gas Hz Hertz IEEE Institute of...feet west of the closed/capped ERP Site FT-02, the Fire Training Area/Old Sanitary Landfill Area ( FTA /OSLA), which encompasses 28 acres, five of
Deciphering solar magnetic activity: on grand minima in solar activity

Energy Technology Data Exchange (ETDEWEB)

McIntosh, Scott W. [High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO (United States); Leamon, Robert J., E-mail: mscott@ucar.edu [Department of Physics, Montana State University, Bozeman, MT (United States)

2015-07-08

The Sun provides the energy necessary to sustain our existence. While the Sun provides for us, it is also capable of taking away. The weather and climatic scales of solar evolution and the Sun-Earth connection are not well- understood. There has been tremendous progress in the century since the discovery of solar magnetism—magnetism that ultimately drives the electromagnetic, particulate, and eruptive forcing of our planetary system. There is contemporary evidence of a decrease in solar magnetism, perhaps even indicators of a significant downward trend, over recent decades. Are we entering a minimum in solar activity that is deeper and longer than a typical solar minimum, a “grand minimum”? How could we tell if we are? What is a grand minimum and how does the Sun recover? These are very pertinent questions for modern civilization. In this paper we present a hypothetical demonstration of entry and exit from grand minimum conditions based on a recent analysis of solar features over the past 20 years and their possible connection to the origins of the 11(&ish) year solar activity cycle.
Deciphering Solar Magnetic Activity: On Grand Minima in Solar Activity

Directory of Open Access Journals (Sweden)

Scott William Mcintosh

2015-07-01

Full Text Available The Sun provides the energy necessary to sustain our existence. While the Sun provides for us, it is also capable of taking away. The weather and climatic scales of solar evolution and the Sun-Earth connection are not well understood. There has been tremendous progress in the century since the discovery of solar magnetism - magnetism that ultimately drives the electromagnetic, particulate and eruptive forcing of our planetary system. There is contemporary evidence of a decrease in solar magnetism, perhaps even indicators of a significant downward trend, over recent decades. Are we entering a minimum in solar activity that is deeper and longer than a typical solar minimum, a grand minimum? How could we tell if we are? What is a grand minimum and how does the Sun recover? These are very pertinent questions for modern civilization. In this paper we present a hypothetical demonstration of entry and exit from grand minimum conditions based on a recent analysis of solar features over the past 20 years and their possible connection to the origins of the 11(-ish year solar activity cycle.
Deciphering Solar Magnetic Activity: On Grand Minima in Solar Activity

Science.gov (United States)

Mcintosh, Scott; Leamon, Robert

2015-07-01

The Sun provides the energy necessary to sustain our existence. While the Sun provides for us, it is also capable of taking away. The weather and climatic scales of solar evolution and the Sun-Earth connection are not well understood. There has been tremendous progress in the century since the discovery of solar magnetism - magnetism that ultimately drives the electromagnetic, particulate and eruptive forcing of our planetary system. There is contemporary evidence of a decrease in solar magnetism, perhaps even indicators of a significant downward trend, over recent decades. Are we entering a minimum in solar activity that is deeper and longer than a typical solar minimum, a "grand minimum"? How could we tell if we are? What is a grand minimum and how does the Sun recover? These are very pertinent questions for modern civilization. In this paper we present a hypothetical demonstration of entry and exit from grand minimum conditions based on a recent analysis of solar features over the past 20 years and their possible connection to the origins of the 11(-ish) year solar activity cycle.
Grand challenges for integrated USGS science—A workshop report

Science.gov (United States)

Jenni, Karen E.; Goldhaber, Martin B.; Betancourt, Julio L.; Baron, Jill S.; Bristol, R. Sky; Cantrill, Mary; Exter, Paul E.; Focazio, Michael J.; Haines, John W.; Hay, Lauren E.; Hsu, Leslie; Labson, Victor F.; Lafferty, Kevin D.; Ludwig, Kristin A.; Milly, Paul C. D.; Morelli, Toni L.; Morman, Suzette A.; Nassar, Nedal T.; Newman, Timothy R.; Ostroff, Andrea C.; Read, Jordan S.; Reed, Sasha C.; Shapiro, Carl D.; Smith, Richard A.; Sanford, Ward E.; Sohl, Terry L.; Stets, Edward G.; Terando, Adam J.; Tillitt, Donald E.; Tischler, Michael A.; Toccalino, Patricia L.; Wald, David J.; Waldrop, Mark P.; Wein, Anne; Weltzin, Jake F.; Zimmerman, Christian E.

2017-06-30

Executive SummaryThe U.S. Geological Survey (USGS) has a long history of advancing the traditional Earth science disciplines and identifying opportunities to integrate USGS science across disciplines to address complex societal problems. The USGS science strategy for 2007–2017 laid out key challenges in disciplinary and interdisciplinary arenas, culminating in a call for increased focus on a number of crosscutting science directions. Ten years on, to further the goal of integrated science and at the request of the Executive Leadership Team (ELT), a workshop with three dozen invited scientists spanning different disciplines and career stages in the Bureau convened on February 7–10, 2017, at the USGS John Wesley Powell Center for Analysis and Synthesis in Fort Collins, Colorado.The workshop focused on identifying “grand challenges” for integrated USGS science. Individual participants identified nearly 70 potential grand challenges before the workshop and through workshop discussions. After discussion, four overarching grand challenges emerged:Natural resource security,Societal risk from existing and emerging threats,Smart infrastructure development, andAnticipatory science for changing landscapes.Participants also identified a “comprehensive science challenge” that highlights the development of integrative science, data, models, and tools—all interacting in a modular framework—that can be used to address these and other future grand challenges:Earth Monitoring, Analyses, and Projections (EarthMAP)EarthMAP is our long-term vision for an integrated scientific framework that spans traditional scientific boundaries and disciplines, and integrates the full portfolio of USGS science: research, monitoring, assessment, analysis, and information delivery.The Department of Interior, and the Nation in general, have a vast array of information needs. The USGS meets these needs by having a broadly trained and agile scientific workforce. Encouraging and supporting
Aquifer composition and the tendency toward scale-deposit formation during reverse osmosis desalination - Examples from saline ground water in New Mexico, USA

Science.gov (United States)

Huff, G.F.

2006-01-01

Desalination is expected to make a substantial contribution to water supply in the United States by 2020. Currently, reverse osmosis is one of the most cost effective and widely used desalination technologies. The tendency to form scale deposits during reverse osmosis is an important factor in determining the suitability of input waters for use in desalination. The tendency toward scale formation of samples of saline ground water from selected geologic units in New Mexico was assessed using simulated evaporation. All saline water samples showed a strong tendency to form CaCO3 scale deposits. Saline ground water samples from the Yeso Formation and the San Andres Limestone showed relatively stronger tendencies to form CaSO4 2H2O scale deposits and relatively weaker tendencies to form SiO2(a) scale deposits than saline ground water samples from the Rio Grande alluvium. Tendencies toward scale formation in saline ground water samples from the Dockum Group were highly variable. The tendencies toward scale formation of saline waters from the Yeso Formation, San Andres Limestone, and Rio Grande alluvium appear to correlate with the mineralogical composition of the geologic units, suggesting that scale-forming tendencies are governed by aquifer composition and water-rock interaction. ?? 2006 Elsevier B.V. All rights reserved.
Maternal and fetal outcome in grand multipara

International Nuclear Information System (INIS)

Qamar, A.; Qamar, S.

2015-01-01

Study Design: Case control study. Place and Duration of Study: Gynecology and Obstetric Unit-I of the Jinnah Post Graduate and Medical Centre Karachi, from February 2009 to January 2010. Patients and Methods: One hundred (100) patients of grand multipara (GMP), (parity = 5) and 100 patients of multipara (MP) (parity 2-4) were included in the study. Pregnant women with known medical conditions including essential hypertension, diabetes mellitus, epilepsy, primigravidas, women with previous caesarean section and twin pregnancies were excluded. Patients were admitted through antenatal clinic and emergency. A detailed history was taken and a physical examination was done with special emphasis on obstetrical examination. Investigations like blood CP, Urine D/R, blood grouping and sonogram were done. During labour, mother and neonates were managed according to ward protocols. Maternal and fetal outcomes were compared among GMPs and MPs. Results: A high frequency of anaemia (81% vs 20%), pregnancy induced hypertension (45%, vs. 26%) and gestational diabetes (9%, vs1%) were seen in GMP as compared to MP group. Frequency of malpresentations (26% vs 15%), postpartum hemorrhage (15%, vs 10%) and intrauterine deaths (26%, vs 13%) were higher in GMP group along with a high caesarean delivery rate (GMP 21%, MP 14%). A higher maternal mortality (GMP 4%, MP 1%) and low APGAR score (GMP 12%, MP 4%) were observed among babies born to grand multipara group. Conclusion: Grand multiparity is associated with adverse outcome for both mother and fetus. Effort should be directed to reduce high parity in the community through effective family planning initiatives. Specialized antenatal and obstetrical care facilities should be available. (author)
Grand societal challenges in information systems research and education

CERN Document Server

vom Brocke, Jan; Hofmann, Sara; Tumbas, Sanja

2015-01-01

This book examines how information systems research and education can play a major role in contributing to solutions to the Societal Grand Challenges formulated in "The Millennium Project" (millenium-project.org). Individual chapters focus on specific challenges, review existing approaches and contributions towards solutions in information systems research and outline a research agenda for these challenges. The topics considered in this volume range from climate change, population growth, global ICT availability, breakthroughs in science and technology and energy demand to ethical decision-making, policymaking, gender status and transnational crime prevention. It is the first book to present ideas on how the Information Systems discipline can contribute to the solution on this wide spectrum of grand societal challenges.
Ecologia da paisagem da hantavirose no Estado do Rio Grande do Sul Landscape ecology of hantavirosis in Rio Grande do Sul State

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Waldir E. Henkes

2004-12-01

Full Text Available Esse trabalho tem como objetivo estudar a ecologia da paisagem das hantaviroses no Rio Grande do Sul através do mapeamento da ocorrência de casos e sua sobreposição a mapas de vegetação e relevo. A maior parte dos casos ocorre na primavera em regiões serranas com vegetação secundária e atividade agrícola.The aim of this work was to study the landscape ecology of hantavirosis in Rio Grande do Sul state, Brazil. This was achieved through geocoding the occurrence of cases and overlaying onto vegetation and relief maps. The majority of cases occurred during Spring, in highland areas dominated by secondary vegetation and agricultural activity.

Graafikatriennaali grand prix Korea kunstnikule

Index Scriptorium Estoniae

1998-01-01

Tallinna XI graafikatriennaali rahvusvaheline žürii andis grand prix korea kunstnikule Chung¡Sang-Gonile, kolm võrdset preemiat - soome kunstnikele Anita Jensenile ja Tapani Mikkonenile ning jaapani kunstnikule Estuko Obatale. Eesti Kunstimuuseumi preemia - Wendy Swallow. Tallinna linna preemia ja Ivar Luki sponsoripreemia - Walter Jule. Sponsoripreemiad : Paletti Eesti AS preemia - Inga Heamägi; Rannila Profiili preemia - Mojca Zlokarnik; UNDP preemia - Andrea Juan. Rotermanni soolalao arhitektuuri- ja kunstikeskuse diplom - Lis Ingram, Heli Päivikki Kurunsaari, Randi Strand, Wendy Swallow
The Grand Challenges of Nanotechnology

International Nuclear Information System (INIS)

Lane, Neal

2001-01-01

Amazing breakthroughs and advances continue to be made in nanoscale science and engineering and the rapidly emerging field of nanotechnology, including near-commercial applications in biomedicine, computing and environmental protection. The National Nanotechnology Initiative, begun by the Clinton Administration has placed nanoscale research on a new funding trajectory. But, many 'grand challenges' must be overcome, technical ones as well as those related to funding, science and technology workforce, and the need for stronger collaboration across discipline, organizations, government agencies and with other countries
United States Department of Energy, Grand Junction Office

International Nuclear Information System (INIS)

1980-01-01

The Grand Junction Office (GJO), US Department of Energy (DOE), develops and administers programs for evaluating domestic uranium resources and the production capability of industry; for developing resource planning information for DOE; and for advancing geologic and geophysical exploration concepts and techniques. In addition, GJO administers the leasing of mineral lands under DOE control, and carries out activities relating to the environmental aspects of uranium mining and milling, including remedial programs. The Office is staffed by administrative and technical program-management personnel. Bendix Field Engineering Corporation (Bendix) is the DOE operating contractor at the Grand Junction, Colorado, Government-owned/contractor-operated (GOCO) facility. The technical staffs of both GJO and Bendix are primarily geoscience-oriented. Specifically during 1980, uranium resource assessment on 135 National Topographic Map Series (NTMS) quadrangles was completed, along with other specific studies, to yield October 1980 national resource estimates. In addition, updated uranium supply analysis and production capability projections were completed. Another key aspect of this successful program was the development of improved geophysical and geochemical equipment and techniques in support of uranium resource assessment. Much of the hardware and know-how developed was turned over to the public and to the uranium industry at large for application to uranium exploration and the assessment of uranium company resources. The Grand Junction Office also participated actively during 1980 in international cooperative research on uranium exploration techniques and on the geology of uranium deposits
The Virtual Grand Tour as Educational Paradigm

DEFF Research Database (Denmark)

Hansen, Per Skafte; Mouritsen, Lars

2001-01-01

The Virtual Grand Tour as defined here bears some resemblance to its 18th century ancestor: a wide range of individual topics are treated as a whole; a tutor, whether real or simulated, present or remote, is provided; a set of problem solving tools forms an integrated part of the "traveller...
Casa Grande Ruins National Monument acoustical monitoring 2010

Science.gov (United States)

2014-11-01

During September 2010, The Volpe Center collected baseline acoustical data at Casa Grande National Monument (CAGR), at one site for 28 days. The baseline data collected during this period will help park managers and planners estimate the effects of f...
The vertebrate fauna from the stipite layers of the Grands Causses (Middle Jurassic, France

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Fabien eKnoll

2014-09-01

Full Text Available The stipites are Bathonian (Middle Jurassic coals that formed in an everglades-like environment and are now exposed in the Grands Causses (southern France. The vertebrate assemblage of the stipites and of the transitional layers to the carbonates in which they are interspersed are reviewed. To date, only small-sized and isolated vertebrate bones, teeth, and scales have been recovered. These record the presence of sharks (Hybodus, Asteracanthus, bony fishes (Lepidotes, Pycnodontiformes, Caturus, Aspidorhynchus, amphibians (Anura, Albanerpetontidae, and reptiles (Crocodylomorpha, Ornithischia, Theropoda. Despite its relatively limited taxonomic diversity, the vertebrate assemblage from the stipites and from their associated layers is notable for being one of the few of this age with both terrestrial and marine influences. Compared to other approximately coeval formations in Western Europe, the stipites vertebrate assemblage is surpassed in diversity only by those from the British Isles.
Bringing Seismology's Grand Challenges to the Undergraduate Classroom

Science.gov (United States)

Benoit, M. H.; Taber, J.; Hubenthal, M.

2011-12-01

The "Seismological Grand Challenges in Understanding Earth's Dynamic Systems," a community-written long-range science plan for the next decade, poses 10 questions to guide fundamental seismological research. Written in an approachable fashion suitable for policymakers, the broad questions and supporting discussion contained in this document offer an ideal framework for the development of undergraduate curricular materials. Leveraging this document, we have created a collection of inquiry-based classroom modules that utilize authentic data to modernize seismological instruction in 100 and 200 level undergraduate courses. The modules not only introduce undergraduates to the broad questions that the seismological community seeks to answer in the future but also showcase the numerous areas where modern seismological research is actively contributing to our understanding of fundamental Earth processes. To date 6 in-depth explorations that correspond to the Grand Challenges document have been developed. The specific topics for each exploration were selected to showcase modern seismological research while also covering topics commonly included in the curriculum of these introductory classes. Examples of activities that have been created and their corresponding Grand Challenge include: -A guided inquiry that introduces students to episodic tremor and slip and compares the GPS and seismic signatures of ETS with those produced from standard tectonic earthquakes (Grand Challenge "How do faults slip?"). - A laboratory exercise where students engage in b-value mapping of volcanic earthquakes to assess potential eruption hazards (How do magmas ascend and erupt?). - A module that introduce students to glacial earthquakes in Greenland and compares their frequency and spatial distribution to tectonic earthquakes (How do processes in the ocean and atmosphere interact with the solid Earth?). What is the relationship between stress and strain in the lithosphere? - An activity that
Contraceptive choices among grand multiparous women at Murtala Mohammed Specialist Hospital, Kano.

Science.gov (United States)

Rabiu, Ayyuba; Abubakar, Idris Sulaiman; Garba, Ibrahim; Haruna, Iman Usman

2016-01-01

Grand multiparity is known to be associated with pregnancy complications. Nigeria with a contraceptive prevalence of women get to grand multiparity early in their obstetric carriers. These women contribute significantly to the bad obstetric performance indices in the country. The present study was to explore the contraceptive choices among grand multiparous women. This study was a descriptive cross-sectional study among grand multiparous women attending an antenatal clinic. Data were collected on sociodemographic characteristics, contraceptive choices, and factors that influence such choices. The data were analyzed using Statistical Package for the Social Sciences version 18. There were 219 respondents. The mean age was 33.05 ± 3.17, and the mean parity was 6.48 ± 1.83. Most of the respondents (208, 95.50%) were aware of modern contraceptive methods, and oral contraceptive was the method of most of the respondents (197, 90.00%). Only 92 (42.00%) were currently using a modern contraceptive method. Being convenient for the lifestyle was the reason for the choice of a contraceptive method by many of the respondents (42, 19.10%). There was high awareness of modern contraceptive methods; however, there was low use prevalence among respondents, and the desire for more pregnancy was the reason for the nonuse.
Genetic progress in sunflower crop in Rio Grande do Sul State, Brazil.

Science.gov (United States)

Follmann, D N; Cargnelutti Filho, A; Lorentz, L H; Boligon, A A; Caraffa, M; Wartha, C A

2017-04-13

The sunflower has adaptability to growing regions with different climatic and soil characteristics, showing drought tolerance and high-quality oil production. The State of Rio Grande do Sul is the third largest sunflower producer in Brazil, with research related to the sunflower breeding initiated after the decade of 1950. The aim of this study was to evaluate the genetic progress for grain yield, oil content, and oil yield of sunflower (Helianthus annuus L.) in the State of Rio Grande do Sul. Data of grain yield, oil content, and oil yield obtained from 58 sunflower cultivar yield trials in 19 municipalities in Rio Grande do Sul during the period from 2005 to 2014 were used. Genetic progress was studied according to the methodology proposed by Vencovsky and data from sunflower cultivar yield trials were used. Annual genetic progress of sunflower during the period of 10 years (2005-2014) was 132.46 kg⋅ha -1 ⋅year -1 for grain yield, -0.17%/year for oil content, and 48.11 kg⋅ha -1 ⋅year -1 for oil yield. The sunflower-breeding programs in the State of Rio Grande do Sul were efficient for the traits grain yield and oil yield and presented no efficiency for oil content.
78 FR 60994 - Culturally Significant Objects Imported for Exhibition Determinations: “In Grand Style...

Science.gov (United States)

2013-10-02

... Determinations: ``In Grand Style: Celebrations in Korean Art During the Joseon Dynasty'' SUMMARY: Notice is... objects to be included in the exhibition ``In Grand Style: Celebrations in Korean Art during the Joseon Dynasty,'' imported from abroad for temporary exhibition within the United States, are of cultural...
Overview of natural gas in Rio Grande do Norte, Brazil; Panorama do gas natural no Rio Grande do Norte

Energy Technology Data Exchange (ETDEWEB)

Teixeira, Pedro Helio Gomes [Universidade Federal do Rio Grande do Norte (GREEN/UFRN), Natal, RN (Brazil). Centro de Tecnologia. Grupo de Estudos Energeticos

2008-07-01

This work draws a picture of what the natural gas means to Rio Grande do Norte in its quantitative dimension, expressed in the numbers and reserve indicators, production and structure of consume. In another dimension, it broaches the processes of energetic substitution by the natural gas in the state energetic matrix. (author)
The canonical and grand canonical models for nuclear ...

Indian Academy of Sciences (India)

Many observables seen in intermediate energy heavy-ion collisions can be explained on the basis of statistical equilibrium. Calculations based on statistical equilibrium can be implemented in microcanonical ensemble, canonical ensemble or grand canonical ensemble. This paper deals with calculations with canonical ...
Standardized methods for Grand Canyon fisheries research 2015

Science.gov (United States)

Persons, William R.; Ward, David L.; Avery, Luke A.

2013-01-01

This document presents protocols and guidelines to persons sampling fishes in the Grand Canyon, to help ensure consistency in fish handling, fish tagging, and data collection among different projects and organizations. Most such research and monitoring projects are conducted under the general umbrella of the Glen Canyon Dam Adaptive Management Program and include studies by the U.S. Geological Survey (USGS), U.S. Fish and Wildlife Service (FWS), National Park Service (NPS), the Arizona Game and Fish Department (AGFD), various universities, and private contractors. This document is intended to provide guidance to fieldworkers regarding protocols that may vary from year to year depending on specific projects and objectives. We also provide herein documentation of standard methods used in the Grand Canyon that can be cited in scientific publications, as well as a summary of changes in protocols since the document was first created in 2002.
On two-particle N=1 supersymmetric composite grand unified models

International Nuclear Information System (INIS)

Pirogov, Yu.F.

1984-01-01

A class of two-particle N=1 supersymmetric composite grand unified models, satisfying the anomaly matching and cancellation conditions, n-independence and survival hypothesis is considered. A unique admissible set of the light states, containing spectator states on a par with the composite ones is found. At low mass scales this set contains exactly four families of ordinary fermions without any additional exotics. The interactions of the light states at distances greater than the compositeness radius are described by the N=1 sypersymmetric chiral grand unified model [SU(6)] 2 (or [SU(8)] 2 with a fixed set of four second-rank tensors as matter fields
VT Built Up Lands in Grand Isle County - 1986

Data.gov (United States)

Vermont Center for Geographic Information — (Link to Metadata) NRCS mapped historical and current-day built-up lands for Grand Isle County, VT using several vintages of aerial photography: 1941, 1962, 1974,...
VT Built Up Lands in Grand Isle County - 1941

Data.gov (United States)

Vermont Center for Geographic Information — (Link to Metadata) NRCS mapped historical and current-day built-up lands for Grand Isle County, VT using several vintages of aerial photography: 1941, 1962, 1974,...
Piccolo tõi Soomest taas grand prix'

Index Scriptorium Estoniae

2009-01-01

Tänavuse Lappeenrantas toimunud rahvusvahelise suupillifestivali võistumängimisel osalesid suupilliklubi Piccolo orkester, kvartett ja noored solistid. Grand prix' ehk suure võidukarika pälvis Piccolo suupillikvartett koosseisus Ilmar Tõnisson, Andrus Haugas, Andres Kokk ja Elmar Trink. Noorte kategooria võitjaks tunnistati Martin Merevits, kolmandad kohad saavutasid Janek Sildvee bluusi- ja Eduard Einmann diatoonilise suupilli kategoorias
Hilbert's Grand Hotel with a series twist

Science.gov (United States)

Wijeratne, Chanakya; Mamolo, Ami; Zazkis, Rina

2014-08-01

This paper presents a new twist on a familiar paradox, linking seemingly disparate ideas under one roof. Hilbert's Grand Hotel, a paradox which addresses infinite set comparisons is adapted and extended to incorporate ideas from calculus - namely infinite series. We present and resolve several variations, and invite the reader to explore his or her own variations.
Rio Branco, grand strategy and naval power

Directory of Open Access Journals (Sweden)

João Paulo Alsina Jr.

2014-12-01

Full Text Available This article addresses Baron of Rio Branco's grand strategy and the role played by the naval reorganization program (1904-1910 in this context. The ensuing case study determined the domestic and international constraints that affected the program, as well as the worldview of the patron of Brazilian diplomacy regarding military power's instrumentality to foreign policy.
Middle Rio Grande Basin Research Report 2008

Science.gov (United States)

Deborah M. Finch; Catherine Dold

2008-01-01

An ecosystem is rarely static. A natural system composed of plants, animals, and microorganisms interacting with an area's physical factors, an ecosystem is always fluctuating and evolving. But sometimes, often at the hands of humans, ecosystems change too much. Such is the case with many of the ecosystems of the Middle Rio Grande Basin of New Mexico.

Impressionismo no Rio Grande do Sul: luz e sombras de Oscar Boeira = Impressionism in Rio Grande do Sul: light and shadows of Oscar Boeira

Directory of Open Access Journals (Sweden)

Rosa, Fernanda Soares da

2014-01-01

Full Text Available Este trabalho busca traçar a trajetória do pintor gaúcho Oscar Boeira (1883-1943 no campo das artes plásticas no Rio Grande do Sul. Importante artista de sua época possui os maiores expoentes de sua carreira inspirados pela arte impressionista. Com obras inovadoras traz um olhar diferenciado e sensível, de relevância, a ser compreendido e estudado. Seu caminho nas artes, suas pinturas de paisagem e retrato, bem como seus desenhos traçam aspectos da sociedade rio-grandense do início do século XX, período este em que ocorrem transformações socioeconômicas significativas para a sociedade gaúcha, sendo que a arte carrega grande influencia de sua época e de seus indivíduos. Vida e obra de Boeira são trazidas para melhor compreendermos sua arte e sua atuação nesse campo. Sua forma de ser e de ver o mundo influencia não só em suas produções, nos reflete peculiaridades desta figura importante para as artes plásticas do Rio Grande do Sul, que até hoje pouco estudado, merece um olhar mais aprofundado em seu legado
Fostering Scientific Literacy: Establishing Social Relevance via the Grand Challenges

Science.gov (United States)

Lyford, M. E.; Myers, J. D.; Buss, A.

2010-12-01

Numerous studies and polls suggest the general public’s understanding of science and scientific literacy remain woefully inadequate despite repeated calls for improvement over the last 150 years. This inability to improve scientific literacy significantly is a complex problem likely driven by a number of factors. However, we argue that past calls and efforts for improving scientific literacy have failed to: 1) articulate a truly meaningful justification for society to foster a scientifically literate public; 2) provide a rationale that motivates individuals of diverse backgrounds to become scientifically literate; 3) consider the impact of personal perspective, e.g. values, beliefs, attitudes, etc., on learning; and 4) offer a relevant and manageable framework in which to define scientific literacy. For instance, past calls for improving scientific literacy, e.g. the U.S. is behind the Soviets in the space race, U.S students rank below country X in math and science, etc., have lacked justification, personal motivation and a comprehensive framework for defining scientific literacy. In these cases, the primary justification for improving science education and scientific literacy was to regain international dominance in the space race or to advance global standing according to test results. These types of calls also articulate short-term goals that are rendered moot once they have been achieved. At the same time, teaching practices have commonly failed to consider the perspectives students bring to the classroom. Many STEM faculty do not address issues of personal perspective through ignorance or the desire to avoid controversial subjects, e g. evolution, climate change. We propose that the ‘grand challenges’ (e.g., energy, climate change, antibacterial resistance, water, etc.) humankind currently faces provides a compelling framework for developing courses and curricula well-suited for improving scientific literacy. A grand challenge paradigm offers four
Relations of Brand Image Tocustomers Buying Decisionon Grand Inna Muara Hotel Padang

OpenAIRE

Zengga, Zengga; Chair, Ira Meirina; Abrian, Youmil

2013-01-01

This study aims to describe the relations between brand image to customers buying decision room in hotel grand inna muara padang. This study is a descriptive correlational study. The study population as many as 1694 consists of guest during stay on grand inna muara hotel padang. The descriptive analysis of the results showed that brand image categorized excellent (56%) and categorized quite good (33%). The descriptive analysis of the result results showed that customers buying decision categ...
Herpetofauna of Núcleo Experimental de Iguaba Grande, Rio de Janeiro state, Brazil

OpenAIRE

Martins, AR; Bruno, SF.; Navegantes, AQ.

2012-01-01

The Atlantic Rain forest, which is considered the second largest pluvial forest in the American continent, has had an estimated 93% of its original area destroyed. Although studies concerning the herpetofaunal diversity in this biome have been intensified in the past years, its diversity is still underestimated. The Nucleo Experimental de Iguaba Grande (NEIG) is included in an Environmental Protection Area (APA de Sapeatiba) in the Iguaba Grande municipality, Rio de Janeiro state, Brazil (22º...
Grand Gulf-prioritization of regulatory requirements

International Nuclear Information System (INIS)

Meisner, M.J.

1993-01-01

As cost pressures mount, Grand Gulf nuclear station (GGNS) is relying increasingly on various prioritization approaches to implement, modify, eliminate, or defer regulatory requirements. Regulatory requirements can be prioritized through the use of three measures: (1) safety (or risk) significance; (2) cost; and (3) public policy (or political) significance. This paper summarizes GGNS' efforts to implement solutions to regulatory issues using these three prioritization schemes to preserve a balance between cost and safety benefit
Comment on “Apatite 4He/3He and (U-Th)/He Evidence for an Ancient Grand Canyon”

Science.gov (United States)

Karlstrom, Karl E.; Lee, John P.; Kelley, Shari A.; Crow, Ryan S.; Young, Richard A.; Lucchitta, Ivo; Beard, L. Sue; Dorsey, Rebecca; Ricketts, Jason; Dickinson, William R.; Crossey, Laura

2013-01-01

Flowers and Farley (Reports, 21 December 2012, p. 1616; published online 29 November 2012) propose that the Grand Canyon is 70 million years old. Starkly contrasting models for the age of the Grand Canyon—70 versus 6 million years—can be reconciled by a shallow paleocanyon that was carved in the eastern Grand Canyon 25 to 15 million years ago (Ma), negating the proposed 70 Ma and 55 Ma paleocanyons. Cooling models and geologic data are most consistent with a 5 to 6 Ma age for western Grand Canyon and Marble Canyon.
Exórdio para o estudo da pedagogia libertária em Rio Grande

OpenAIRE

Vargas, Francisco Furtado Gomes Riet

2007-01-01

Aborda a História da Pedagogia Libertária e suas implicações práticas com ênfase ao Estado do Rio Grande do Sul, no Brasil. It approaches the History of Libertarian Pedagogy and its practical implications with emphasis to the State of Rio Grande do Sul, in Brazil.
On grand and small Lebesgue and Sobolev spaces and some applications to PDEs

Czech Academy of Sciences Publication Activity Database

Fiorenza, A.; Formica, M. R.; Gogatishvili, Amiran

2018-01-01

Roč. 10, č. 1 (2018), s. 21-46 ISSN 1847-120X R&D Projects: GA ČR GA13-14743S Institutional support: RVO:67985840 Keywords : grand Lebesgue spaces * small Lebesgue spaces * interpolation Subject RIV: BA - General Mathematics OBOR OECD: Pure mathematics http://dea.ele-math.com/10-03/On-grand-and-small-Lebesgue-and-Sobolev-spaces-and-some-applications-to-PDE-s
History of mesquite introduction in Rio Grande do Norte State, Brazil

Directory of Open Access Journals (Sweden)

João Paulo Silva dos Santos

2017-06-01

Full Text Available The mesquite (Prosopis juliflora (Sw DC was established as a successful action of xerophilous introduction in Brazilian Northeast dry region. Its fruits are used in animal feed and the wood may be used as piles, firewood and charcoal. The species was introduced in 1942, spreading in "low areas" in Rio Grande do Norte, Paraiba, Pernambuco, Bahia and Piauí States. This article aims to elucidate how mesquite was introduced in Rio Grande do Norte State and to understand how it was spread. It was first introduced in Rio Grande do Norte State by the introduction experiments installed at São Miguel farm in the municipality of Angicos. The enthusiasm of technicians and researchers promoted the distribution of pods and seedlings on farms and cities in the state. In addition, there were government incentives to production, distribution and planting the species. This work aims to establish considerations to be used as historical basis on studies about this species and to consider aspects regarding current situation of this culture in Brazilian Northeast.
Eesti nukufilm sai järjekordse grand prix

Index Scriptorium Estoniae

2005-01-01

XII Rahvusvaheline animafilmifestival "KROK-2005", mis toimus laeval, mis sõitis Kiievist Odessasse. Rao Heidmets ja Hardi Volmer said festivali karnevalil oma jänese kostüümi eest grand prix. Eesti filmidest olid programmis "Karl ja Marilyn", "Frank ja Wendy", "Barbarid", "Laud" ja "Conkistadoor"
Aproximación a La Caracterización Ecológica de La Quebrada Fucha en La Reserva Forestal de los Cerros Orientales en La Localidad de San Cristóbal. (Bogotá, Colombia

Directory of Open Access Journals (Sweden)

Mónica Restrepo Villamil (Página 96-113

2009-07-01

Full Text Available En este trabajo se presentan los resultados obtenidos en la práctica de campo realizada el día 10 de octubre de 2008, en la quebrada Fucha en una reserva forestal protegida por la Empresa de Acueducto y Alcantarillado de Bogotá en los cerros orientales de la localidad de San Cristóbal. El objetivo principal de este estudio fue realizar una aproximación a la caracterización de este sistema acuático, para lo cual, se colectaron insectos acuáticos (entomofauna y perifiton, se caracterizaron los suelos de la ribera y se realizaron análisis de las variables fisicoquímicas de la zona. Los insectos acuáticos que se encontraron sumaron un total de 188 individuos, en donde las familias más abundantes fueron Simuliidae y Ceratopogonidae con 60 individuos cada una (32% c/u y las de menor abundancia fueron Odontoceridae, Lepharoceridae y Pyralidae con 1 individuo c/u (0.53% c/u; por otra parte, se encontraron 14 géneros de perifiton. El sistema presenta una diversidad media de acuerdo al índice de Shannon (1.55. La principal fuente de energía del sistema es la materia orgánica disuelta, por lo que la vía que predomina es la detrítica.
Grande Ronde Basin Supplementation Program; Lostine River, 2000 Annual Report.

Energy Technology Data Exchange (ETDEWEB)

Onjukka, Sam T. (Oregon Department of Fish and Wildlife, Portland, OR); Harbeck, Jim (Nez Perce Tribe, Department of Fisheries Resource Management, Enterprise, OR)

2003-03-01

The Northwest Power Planning Council (NPPC) identified supplementation as a high priority to achieve its goal of increasing runs of anadromous fish in the Columbia Basin. Supplementation activities in the Lostine River and associated monitoring and evaluation conducted by the Nez Perce Tribe relate directly to the needs addressed in the Columbia River Basin Fish and Wildlife Program (NPPC 1994). Measure 7.4L.1 of the Program mandates that appropriate research accompany any proposed supplementation. In addition, measure 7.3B.2 of the Program stresses the need for evaluating supplementation projects to assess their ability to increase production. Finally, Section 7.4D.3 encourages the study of hatchery rearing and release strategies to improve survival and adaptation of cultured fish. In 1997, Oregon Department of Fisheries and Wildlife (ODFW) requested a modification of Permit 1011 to allow the take of adult spring chinook salmon. In 1998, the Nez Perce Tribe also requested a permit specific to activities on Lostine River. The permit was issued in 2000. A special condition in the permits required the development of a long term management plan for the spring chinook salmon of the Grande Ronde Basin. The Nez Perce Tribe, ODFW, and the Confederated Tribes of the Umatilla Indian Reservation (CTUIR) completed a formal long range plan entitled ''Grande Ronde Basin Endemic Spring Chinook Salmon Supplementation Program''. The program proposes to increase the survival of spring chinook salmon in the Grand Ronde Basin through hatchery intervention. Adult salmon from the Lostine River, Catherine Creek, and the Upper Grande Ronde River are used for a conventional supplementation program in the basin. The Nez Perce program currently operates under the ESA Section 10 Permit 1149.
Grande Ronde Basin Supplementation Program; Lostine River, 2001 Annual Report.

Energy Technology Data Exchange (ETDEWEB)

Onjukka, Sam T. (Oregon Department of Fish and Wildlife, Portland, OR); Harbeck, Jim (Nez Perce Tribe, Department of Fisheries Resource Management, Enterprise, OR)

2003-03-01

The Northwest Power Planning Council (NPPC) identified supplementation as a high priority to achieve its goal of increasing runs of anadromous fish in the Columbia Basin. Supplementation activities in the Lostine River and associated monitoring and evaluation conducted by the Nez Perce Tribe relate directly to the needs addressed in the Columbia River Basin Fish and Wildlife Program (NPPC 1994). Measure 7.4L.1 of the Program mandates that appropriate research accompany any proposed supplementation. In addition, measure 7.3B.2 of the Program stresses the need for evaluating supplementation projects to assess their ability to increase production. Finally, Section 7.4D.3 encourages the study of hatchery rearing and release strategies to improve survival and adaptation of cultured fish. In 1997, Oregon Department of Fisheries and Wildlife (ODFW) requested a modification of Permit 1011 to allow the take of adult spring chinook salmon. In 1998, the Nez Perce Tribe also requested a permit specific to activities on Lostine River. The permit was issued in 2000. A special condition in the permits required the development of a long term management plan for the spring chinook salmon of the Grande Ronde Basin. The Nez Perce Tribe, ODFW, and the Confederated Tribes of the Umatilla Indian Reservation (CTUIR) completed a formal long range plan entitled ''Grande Ronde Basin Endemic Spring Chinook Salmon Supplementation Program''. The program proposes to increase the survival of spring chinook salmon in the Grand Ronde Basin through hatchery intervention. Adult salmon from the Lostine River, Catherine Creek, and the Upper Grande Ronde River are used for a conventional supplementation program in the basin. The Nez Perce program currently operates under the ESA Section 10 Permit 1149.
A GRAND PLAN FOR EARTH LOVE EDUCATION IN SOUTHERN ...

African Journals Online (AJOL)

cognition. From this doubtful synthesis, the researcher appears to have constructed a grand theory of how the world without ... problem here is that all of the students (English. Xhosa and ..... accompanying 'earthy music' will contrihute to.
75 FR 10308 - Fire Management Plan, Final Environmental Impact Statement, Record of Decision, Grand Canyon...

Science.gov (United States)

2010-03-05

... DEPARTMENT OF THE INTERIOR National Park Service Fire Management Plan, Final Environmental Impact... Statement for the Fire Management Plan, Grand Canyon National Park. SUMMARY: Pursuant to the National... the Record of Decision for the Fire Management Plan, Grand Canyon National Park, Arizona. On January...
France's grandes écoles accused of elitism

Science.gov (United States)

Hellemans, Alexander

2010-02-01

Physicists in France have backed government plans to open up the country's elite grandes écoles to more students from poorer backgrounds. The government wants to allow up to 30% of students to be given free scholarships in an attempt to broaden the social mix of the student body. The physicists say this would not lead to a lowering of standards.
La masa de los grandes impactores

Science.gov (United States)

Parisi, M. G.; Brunini, A.

Los planetas han sido formados fundamentalmente acretando masa a través de colisiones con planetesimales sólidos. La masa más grande de la distribución de planetesimales y las masas máxima y mínima de los impactores, han sido calculadas usando los valores actuales del período y de la inclinación de los planetas (Lissauer & Safronov 1991; Parisi & Brunini 1996). Recientes investigaciones han mostrado, que las órbitas de los planetas gigantes no han sufrido variaciones con el tiempo, siendo su movimiento regular durante su evolución a partir de la finalización de la etapa de acreción (Laskar 1990, 1994). Por lo tanto, la eccentricidad actual de los planetas gigantes se puede utilizar para imponer una cota máxima a las masas y velocidades orbitales de los grandes impactores. Mediante un simple modelo dinámico, y considerando lo arriba mencionado, obtenemos la cota superior para la masa del planetesimal más grande que impactó a cada planeta gigante al final de su etapa de acreción. El resultado más importante de este trabajo es la estimación de la masa máxima permitida para impactar a Júpiter, la cúal es ~ 1.136 × 10 -1, siendo en el caso de Neptuno ~ 3.99 × 10 -2 (expresada en unidades de la masa final de cada planeta). Además, fue posible obtener la velocidad orbital máxima permitida para los impactores como una función de su masa, para cada planeta. Las cotas obtenidas para la masa y velocidad de los impactores de Saturno y Urano (en unidades de la masa y velocidad final de cada planeta respectivamente) son casi las mismas que las obtenidas para Júpiter debido a que estos tres planetas poseen similar eccentricidad actual. Nuestros resultados están en buen acuerdo con los obtenidos por Lissauer & Safronov (1991). Estas cotas podrían ser utilizadas para obtener la distribución de planetesimales en el Sistema Solar primitivo.
Jean-Philippe Costes, Les subversifs hollywoodiens. L’esprit critique du cinéma grand public

OpenAIRE

Dubois, François-Ronan

2015-01-01

À l’idée largement répandue que le cinéma grand public produit dans les studios d’Hollywood représente une machine de propagande étasunienne ou, à tout le moins, capitaliste, Jean-Philippe Costes entend opposer une lecture à contre-courant d’un corpus cinématographique fait de grands classiques et de grands oubliés. Hollywood, à ses yeux, ne saurait se réduire au véhicule médiatique d’une idéologie uniforme et oppressive qui serait, au gré des analyses, celle du capital, du patriotisme améric...
O "abrasileiramento" das associações esportivas de Teutônia/Estrela no Rio Grande do Sul The "abrasileiramento" of the sports associations from Teutônia/Estrela in Rio Grande do Sul

Directory of Open Access Journals (Sweden)

Cecília Elisa Kilpp

2012-03-01

Full Text Available As associações esportivas teuto-brasileiras de Teutônia/Estrela no Estado do Rio Grande do Sul sofreram o processo de abrasileiramento no período da Primeira Guerra Mundial (1914-1918 e da Segunda Grande Guerra (1939-1945. Este artigo objetivou identificar os conﬂitos de identidades culturais nas associações esportivas de Teutônia/Estrela desencadeados pelas ações nacionalizadoras conduzidas pelos interventores do Estado Rio Grande do Sul no período das grandes guerras mundiais. As fontes históricas consultadas revelaram que a prática de esportes tradicionais nas associações teuto-brasileiras enfraqueceu, como no caso do bolão, ao mesmo tempo que outros esportes foram incorporados, principalmente o futebol. A adesão a esta nova prática esportiva significa um movimento na direção do processo de integração às ações nacionalizadoras.The German-Brazilian sport associations of Teutônia/Estrela in the State of Rio Grande do Sul suffered the process of abrasileiramento in the period of the World War I (1914-1918 and of the World War II (1939-1945. This article aimed to identify the conﬂicts of cultural identities in the sport associations of Teutônia/Estrela developed by the nationalization actions leaded by the intervenors of the Rio Grande do Sul State in the period of the great world wars. Historical sources revealed that the practice of traditional sports in the German-Brazilian sport associations weakened, asthe bolão, while other sports were incorporated, mainly the soccer. The adhesion to this new sport means a movement in the direction of the process of integration in the nationalization actions.
REALISMO E TRANSCENDÊNCIA: O MAPA DAS MINAS DO GRANDE SERTAO

Directory of Open Access Journals (Sweden)

Francis Utéza

1998-10-01

Full Text Available Guimarães Rosa insistiu sempre sobre o valor metafísico e religioso de seus escritos. Com base nas chaves que Rosa daria no seu discursode posse na Academia - o Hermetismo da tradição ocidental e o Taoísmo da tradição oriemal, pretende-se analisar o percurso do protagonista de Grande sertão: veredas em função dos três grandes rios de Minas: o São Francisco, o Rio das Velhas e Urucuia. Para além da geografia"realista", decripta-se o substrato transcendental.

Caracterización de la composición y fluctuaciones en la densidad y diversidad de los ensambles planctónicos en cuatro humedales de Tarapacá

Directory of Open Access Journals (Sweden)

Esteban Quinan

2016-12-01

Full Text Available La limnología de los humedales interiores en Tarapacá presenta ciclos productivos altamente dependientes de las lluvias estivales y las condiciones fisicoquímicas del medio. Entre 2013 y 2015 se estudiaron ensambles planctónicos de dos lagunas de evaporación y dos quebradas, durante dos temporadas productivas y dos vegetativas, junto con esto se observaron las condiciones fisicoquímicas asociadas. Los resultados mostraron que el fitoplancton en general estuvo dominado por diatomeas y solo en una quebrada por algas verdes, mientras que el zooplancton presentó composiciones muy distintas entre las lagunas y entre las quebradas, con importantes variaciones temporales. En lagunas las densidades altas de zooplancton asociaron positivamente con sólidos disueltos totales y su diversidad inversamente con la temperatura, por su parte la diversidad de fitoplancton mantuvo una relación inversa con la riqueza de zooplancton.
Effects of agricultural and urban impacts on macroinvertebrates assemblages in streams (Rio Grande do Sul, Brazil

Directory of Open Access Journals (Sweden)

Luiz Ubiratan Hepp

2010-02-01

Full Text Available This study evaluates the effects of agricultural and urban activities on the structure and composition of benthic communities of streams in the state of Rio Grande do Sul, Brazil. Benthic macroinvertebrates were collected in streams influenced by urbanization and agriculture and in streams with no anthropogenic disturbances (reference streams. Organism density was superior in urban streams when compared with streams in the other two areas. The taxonomic richness and Shannon diversity index were higher in reference streams. The benthic fauna composition was significantly different among land uses. The classification and ordination analyses corroborated the results of variance analyses demonstrating the formation of clusters corresponding to streams with similar land use. Seasonality was also found to influence the benthic community, though in a lesser degree than land use.
Necessity of intermediate mass scales in grand unified theories with spontaneously broken CP invariance

International Nuclear Information System (INIS)

Senjanovic, G.

1982-07-01

It is demonstrated that the spontaneous breakdown of CP invariance in grand unified theories requires the presence of intermediate mass scales. The simplest realization is provided by weakly broken left-right symmetry in the context of SU(2)sub(L) x SU(2)sub(R) x U(1)sub(B-L) model embedded in grand unified theories. (author)
A grand-canonical ensemble of randomly triangulated surfaces

International Nuclear Information System (INIS)

Jurkiewicz, J.; Krzywicki, A.; Petersson, B.

1986-01-01

An algorithm is presented generating the grand-canonical ensemble of discrete, randomly triangulated Polyakov surfaces. The algorithm is used to calculate the susceptibility exponent, which controls the existence of the continuum limit of the considered model, for the dimensionality of the embedding space ranging from 0 to 20. (orig.)
Single-beam bathymetry data collected in 2015 from Grand Bay, Alabama-Mississippi

Science.gov (United States)

DeWitt, Nancy T.; Stalk, Chelsea A.; Smith, Christopher G.; Locker, Stanley D.; Fredericks, Jake J.; McCloskey, Terrence A.; Wheaton, Cathryn J.

2017-12-01

As part of the Sea-level and Storm Impacts on Estuarine Environments and Shorelines (SSIEES) project, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted a single-beam bathymetry survey within the estuarine, open-bay, and tidal creek environments of Grand Bay, Alabama-Mississippi, from May to June 2015. The goal of the SSIEES project is to assess the physical controls of sediment and material exchange between wetlands and estuarine environments along the northern Gulf of Mexico, specifically Grand Bay, Alabama-Mississippi; Vermilion Bay, Louisiana; and, along the east coast, within Chincoteague Bay, Virginia-Maryland. The data described in this report provide baseline bathymetric information for future research investigating wetland-marsh evolution, sediment transport, erosion, recent and long-term geomorphic change, and can also support the modeling of changes in response to restoration and storm impacts. The survey area encompasses more than 40 square kilometers of Grand Bay’s waters.
Elastoplasticidad anisotropa de metales en grandes deformaciones

Science.gov (United States)

Caminero Torija, Miguel Angel

El objetivo de este trabajo es el desarrollo de modelos y algoritmos numericos que simulen el comportamiento del material bajo estas condiciones en el contexto de programas de elementos finitos, dando como resultado predicciones mas precisas de los procesos de conformado y deformacion plastica en general. Para lograr este objetivo se han desarrollado diversas tareas destinadas a mejorar las predicciones en tres aspectos fundamentales. El primer aspecto consiste en la mejora de la descripcion del endurecimiento cinematico anisotropo en pequenas deformaciones, lo cual se ha realizado a traves de modelos y algoritmos implicitos de superficies multiples. Ha sido estudiada la consistencia de este tipo de modelos tanto si estan basados en una regla implicita similar a la de Mroz o en la regla de Prager. Ademas se han simulado los ensayos de Lamba y Sidebottom, obteniendo, en contra de la creencia general, muy buenas predicciones con la regla de Prager. Dichos modelos podrian ser extendidos de forma relativamente facil para considerar grandes deformaciones a traves de procedimientos en deformaciones logaritmicas, similares a los desarrollados en esta tesis y detallados a continuacion. El segundo aspecto consiste en la descripcion de la anisotropia elastoplastica inicial. Esto se ha conseguido mediante el desarrollo de modelos y algoritmos para plasticidad anisotropa en grandes deformaciones, bien ignorando la posible anisotropia elastica, bien considerandola simultaneamente con la anisotropia plastica. Para ello ha sido necesario desarrollar primero un nuevo algoritmo de elastoplasticidad anisotropa en pequenas deformaciones consistentemente linealizado y sin despreciar ningun termino, de tal forma que se conserve la convergencia cuadratica de los metodos de Newton. Este algoritmo en pequenas deformaciones ha servido para realizar la correccion plastica de dos algoritmos en grandes deformaciones. El primero de estos algoritmos es una variacion del clasico algoritmo de
A BLUEPRINT FOR IMPLEMENTING GRAND CHALLENGE SCHOLARS’ PROGRAMME: A CASE STUDY OF TAYLOR’S UNIVERSITY

Directory of Open Access Journals (Sweden)

MUSHTAK AL-ATABI

2013-04-01

Full Text Available The National Academy for Engineering announced 14 Grand Challenges for the 21st Century engineers to address in order to ensure a sustainable future for the generations to come. These grand challenges are in four broad areas, namely, energy and environment, health, security and learning and computation. This paper reports on a Grand Challenges Scholars’ Programme that is developed to prepare the engineering students to be able to address the grand challenges using the CDIO framework and focusing on five components; research experience, interdisciplinary curriculum, entrepreneurship, global dimension and service learning. The programme is voluntary and the candidates are expected to commit additional learning time. The programme was launched with 16 participants who are expected to graduate in 2016. A preliminary assessment of the programs shows that the participants found the programme useful in developing an array of CDIO skills. The School intends to continue offering this programme with the intention of integrating it with a holistic education approach.
Psicodinâmica da violência de grandes grupos e da violência de massas

Directory of Open Access Journals (Sweden)

Vamik D. Volkan

Full Text Available A partir de Freud, as teorias psicanalistas sobre grandes grupos focalizam, principalmente, as percepções e os significados que, psicologicamente, os indivíduos atribuem a eles. Este texto analisa alguns aspectos sobre a psicologia dos grandes grupos e sua psicodinâmica interna e específica. Toma como referência grupos étnicos, nacionais, religiosos e ideológicos cujo pertencimento dos sujeitos iniciou-se na infância. O autor faz uma comparação entre o processo de luto em indivíduos e o processo de luto em grandes grupos para ilustrar por que é necessário investir no conhecimento da psicologia destes últimos como um objeto específico. O autor descreve, ainda, sinais e sintomas de regressão em grandes grupos. Quando há ameaça à identidade coletiva, pode ocorrer um processo de violência de massas que obviamente influencia a saúde pública.
Grand unification: quo vadis domine

International Nuclear Information System (INIS)

Senjanovic, G.

1985-01-01

The present theoretical and experimental situation with grand unification is summarized. The issues of proton decay and the Weinberg angle are addressed, going through the predictions of both the standard SU(5) theory and its supersymmetric extension. The SO(10) theory, which provides a minimal one family model, is then studied. The gravitational characteristics of domain walls and strings are then discussed. It is argued that there is a need to go beyond SO(10) in order to incorporate a unified picture of families. This leads to the prediction of mirror fermions, whose physics is analyzed. 31 refs
Grand Challenges of Enterprise Integration

Energy Technology Data Exchange (ETDEWEB)

Brosey, W.D; Neal, R.E.; Marks, D.

2001-04-01

Enterprise Integration connects and combines people, processes, systems, and technologies to ensure that the right people and the right processes have the right information and the right resources at the right time. A consensus roadmap for Technologies for Enterprise Integration was created as part of an industry/government/academia partnership in the Integrated Manufacturing Technology Initiative (IMTI). Two of the grand challenges identified by the roadmapping effort will be addressed here--Customer Responsive Enterprises and Totally Connected Enterprises. Each of these challenges is briefly discussed as to the current state of industry and the future vision as developed in the roadmap.
L'aventure du grand collisionneur LHC du big bang au boson de Higgs

CERN Document Server

Denegri, Daniel; Hoecker, Andreas; Roos, Lydia; Rubbia, Carlo

2014-01-01

Qu'est-ce que la physique des particules élémentaires, le LHC, et le boson de Higgs ? Ce livre présente de manière simple le monde des quarks, des leptons et de leurs interactions, gouvernées par des symétries fondamentales de la nature, ainsi que le lien entre ce monde de l'infiniment petit et celui de l'infiniment grand. Cette conjonction entre la physique des particules élémentaires et l'évolution de la matière dans les premiers instants de l Univers qui ont suivi le Big-Bang est un des plus beaux acquis de la science de ces cinquante dernières années. Après une description du cadre théorique, le modèle standard, et de son élaboration durant la deuxième moitié du XXe siècle, l'accent est mis sur ses grands succès expérimentaux, mais aussi sur ses faiblesses ou insuffisances telles que nous les percevons aujourd'hui. La passionnante histoire du grand collisionneur de hadrons du CERN, le LHC, le plus grand projet purement scientifique jamais réalisé, est présentée à la fois sous ses...
CTUIR Grande Ronde River Watershed Restoration Program McCoy Creek/McIntyre Creek Road Crossing, 1995-1999 Progress Report.

Energy Technology Data Exchange (ETDEWEB)

Childs, Allen B.

2000-08-01

The Confederated Tribes of the Umatilla Indian Reservation (CTUIR) and Bonneville Power Administration (BPA) entered into a contract agreement beginning in 1996 to fund watershed restoration and enhancement actions and contribute to recovery of fish and wildlife resources and water quality in the Grande Ronde River Basin. The CTUIR's habitat program is closely coordinated with the Grande Ronde Model Watershed Program and multiple agencies and organizations within the basin. The CTUIR has focused during the past 4 years in the upper portions of the Grande Ronde Subbasin (upstream of LaGrande, Oregon) on several major project areas in the Meadow, McCoy, and McIntyre Creek watersheds and along the mainstem Grande Ronde River. This Annual Report provides an overview of individual projects and accomplishments.
The impact of a simulated grand tour on sleep, mood, and well-being of competitive cyclists.

Science.gov (United States)

Lastella, M; Roach, G D; Halson, S L; Martin, D T; West, N P; Sargent, C

2015-12-01

Professional cycling is considered one of the most demanding of all endurance sports. The three major professional cycling stages races (i.e. Tour de France, Giro d'Italia and Vuelta a España) require cyclists to compete daily covering between ~150-200 km for three consecutive weeks. Anecdotal evidence indicates that such an event has a significant effect on the sleep, mood, and general well-being of cyclists, particularly during the latter stages of the event. The primary aim of this study was to simulate a grand tour and determine the impact a grand tour has on the sleep, mood, and general well-being of competitive cyclists. Twenty-one male cyclists (M±SD, age 22.2±2.7 years) were examined for 39 days across three phases (i.e. baseline, simulated grand tour, and recovery). Sleep was assessed using sleep diaries and wrist activity monitors. Mood and general well-being were assessed using the Brunel Mood Scale (BRUMS) and Visual Analogue Scales (VAS). The amount and quality of sleep as assessed by the wrist activity monitors declined during the simulated grand tour. In contrast, self-reported sleep quality improved throughout the study. Cyclists' mood and general well-being as indicated by vigour, motivation, physical and mental state declined during the simulated tour. Future investigations should examine sleep, mood and well-being during an actual grand tour. Such data could prove instrumental toward understanding the sleep and psychological changes that occur during a grand tour.
Building a Course on Global Sustainability using the grand challenges of Energy-Water-Climate

Science.gov (United States)

Myers, J. D.

2012-12-01

GEOL1600: Global Sustainability: Managing the Earth's Resources is a lower division integrated science course at the University of Wyoming that fulfills the university's science requirement. Course content and context has been developed using the grand challenge nexus of energy-water-and climate (EWC). The interconnection of these issues, their social relevance and timeliness has provided a framework that gives students an opportunity to recognize why STEM is relevant to their lives regardless of their ultimate professional career choices. The EWC nexus provides the filter to sieve the course's STEM content. It also provides an ideal mechanism by which the non-STEM perspectives important in grand challenge solutions can be seamlessly incorporated in the course. Through a combination of content and context, the relevance of these issues engage students in their own learning. Development of the course followed the Grand Challenge Scientific Literacy (GCSL) model independently developed by the author and two colleagues at the University of Wyoming. This course model stresses science principles centered on the nature of science (e.g., fundamental premises, habits of mind, critical thinking) and unifying scientific concepts (e.g., methods and tools, experimentation, modeling). Grand challenge principles identify the STEM and non-STEM concepts needed to understand the grand challenges, drawing on multiple STEM and non-STEM disciplines and subjects (i.e., economics, politics, unintended consequences, roles of stakeholders). Using the EWC nexus filter and building on the Grand Challenge Principles, specific content included in the course is selected is that most relevant to understanding the Grand Challenges, thereby stressing content depth over breadth. Because quantitative data and reasoning is critical to effectively evaluating challenge solutions, QR is a component of nearly all class activities, while engineering and technology aspects of grand challenges are
Spatial and seasonal variations of the contamination within water body of the Grand Canal, China

NARCIS (Netherlands)

Wang, X.L.; Han, Jingyi; Xu, L.G.; Zhang, Q.

2010-01-01

To delineate the character of contaminations in the Grand Canal, China, a three-year study (2004-2006) was conducted to investigate variations the water quality in the canal. Results showed that the variation of water quality within the Grand Canal was of there is remarkable spatial and seasonal
Physical-chemical characterization of sediments from Lapa Grande de Taquaracu archaeological site, MG; Caracterizacao fisico-quimica de sedimentos do sitio arqueologico Lapa Grande de Taquaracu, MG

Energy Technology Data Exchange (ETDEWEB)

Tudela, Diego Renan Giclioti

2013-07-01

In this project the elemental concentrations of Ce, Co, Cr, Cs, Eu, Fe, Hf, K, La, Lu, Na, Nd, Rb, Sc, Sm, Ta, Tb, Th, U, Yb and Zn were determined by instrumental neutron activation analysis (INAA) in 60 sediment samples from Lapa Grande de Taquaracu archaeological site, located in MG State. The samples were provided by Dr. Astolfo Gomes de Mello Araujo from the Museum of Archaeology and Ethnology, University of Sao Paulo. This site is a palaeoindian rockshelter located near Lagoa Santa karst with characteristics which could be used to test karst abandonment model during the Middle Holocene related to dry conditions. The results of elemental concentrations, interpreted by multivariate statistical analysis, showed the formation of three different compositional and well-defined groups. The variable selection study by means of Procrusts analysis was also carried out. X-ray diffraction (XRD) analyses were also performed in 8 samples to study their mineralogical composition and they showed that there are distinctions in crystalline structure between the samples of the three elemental compositional groups, being quartz, calcite, dolomite and mica the main crystalline phases present in the samples. (author)
Enterotoxemia em caprinos no Rio Grande do Sul Caprine enterotoxaemia in Rio Grande do Sul, Brazil

Directory of Open Access Journals (Sweden)

Edson M. Colodel

2003-12-01

Full Text Available São descritos surtos de enterotoxemia em caprinos em cinco propriedades no Estado do Rio Grande do Sul. Os animais afetados eram, normalmente, encontrados mortos ou apresentavam evolução aguda de 2 a 3 horas com acentuada depressão, cólicas abdominais e diarréia profusa com fibrina. Em duas propriedades relataram-se casos com a evolução de até 12 horas. Em treze animais necropsiados observaram-se aumento de líquidos nas cavidades abdominal, torácica e pericárdica, congestão e hiperemia da serosa e mucosa do intestino, conteúdo do cólon líquido com fibrina além de hemorragias de serosa e fibrina. Em um animal constatou-se microangiopatia cerebral caracterizada por acúmulo de material homogêneo e eosinofílico no espaço perivascular. No conteúdo intestinal, colônias com bastonetes morfológica e bioquimicamente sugestivos de Clostridium perfringens foram caracterizadas no estudo bacteriológico. A soroneutralização em camundongos com conteúdo intestinal dos animais afetados, revelou a presença da toxina épsilon. Estes achados evidenciam a enterotoxemia como doença de importância para criação de caprinos no Rio Grande do Sul.Five outbreaks of caprine enterotoxaemia in Rio Grande do Sul, Brazil, were studied. The animals were found dead or had a clinical course that usually lasted 2-3 hours. From two farms a clinical manifestation period of 12 hours was reported. Clinical signs were characterized by depression, marked abdominal discomfort, profuse watery diarrhea with fibrin clots, and death. Thirteen necropsies were performed and hydropericardium, hydrothorax and hydroperitoneum were commonly found. The mucosa and serosa of the colon were congested, and its contents was watery with multiple fibrin clots. Serosal hemorrhages and fibrin clots in the gallbladder were also seen. Fibrinous colitis and thyphilitis were the most frequent histological changes. Cerebral microangiopathy was observed in one case, which was
UMTRA Project water sampling and analysis plan, Grand Junction, Colorado. Revision 1, Version 6

International Nuclear Information System (INIS)

1995-09-01

This water sampling and analysis plan describes the planned, routine ground water sampling activities at the Grand Junction US DOE Uranium Mill Tailings Remedial Action (UMTRA) Project site (GRJ-01) in Grand Junction, Colorado, and at the Cheney Disposal Site (GRJ-03) near Grand Junction. The plan identifies and justifies the sampling locations, analytical parameters, detection limits, and sampling frequencies for the routine monitoring stations at the sites. Regulatory basis is in the US EPA regulations in 40 CFR Part 192 (1994) and EPA ground water quality standards of 1995 (60 FR 2854). This plan summarizes results of past water sampling activities, details water sampling activities planned for the next 2 years, and projects sampling activities for the next 5 years
Porta-enxertos para a tangerineira 'Michal' no Rio Grande do Sul Rootstocks for 'Michal' tangerine in Rio Grande do Sul - Brazil

Directory of Open Access Journals (Sweden)

Eduardo Cesar Brugnara

2009-08-01

Full Text Available A tangerineira 'Michal' (Citrus clementina x C. tangerina poderá ser uma boa alternativa ao Rio Grande do Sul como cultivar copa para produção de frutos em época precoce. No entanto, há falta de informações sobre seu comportamento em cultivo nas condições ambientais desse Estado. O objetivo deste trabalho foi avaliar o desenvolvimento das plantas, a produção e a qualidade dos frutos da tangerineira 'Michal' enxertada sobre cinco porta-enxertos: citrangeiro 'Troyer', citrumeleiro 'Swingle', limoeiro 'Cravo', tangerineira 'Sunki' e trifoliata 'Flying Dragon', na Depressão Central do Rio Grande do Sul. Foram avaliados os seguintes parâmetros: a altura das plantas, a circunferência do tronco, a área de projeção da copa (APC, o número e a massa (MF de frutos produzidos, a relação MF/APC (IP, o teor de sólidos solúveis totais (SST, a acidez total titulável (ATT e a relação SST/ATT do suco, além do tamanho dos frutos e do rendimento de suco. O citrumeleiro 'Swingle' promoveu bom vigor, boa produção, bom IP, bons níveis de SST e de ATT da 'Michal', enquanto o limoeiro 'Cravo' conferiu bom vigor, boa produção, bom IP e bom tamanho dos frutos, ambos podendo ser indicados como porta-enxertos em pomares de tangerineira 'Michal'.'Michal' tangerine (Citrus clementina x C. tangerina can be a good choice as canopy for early maturing fruit production in Rio Grande do Sul. The limitation is the lack of information about its performance and management. The aim of this research was to evaluate the development, production and fruit quality of 'Michal' tangerine grafted on five rootstocks: 'Troyer' citrange, 'Swingle' citrumelo, 'Cravo' lemon, 'Sunki' tangerine and 'Flying Dragon' trifoliate orange, in the Depressão Central of Rio Grande do Sul. The following variables were evaluated: plant height; trunk circumference; canopy projection area (APC; produced fruit number and weight (MF; MF/APC relation (IP; juice total soluble solids
Grand challenge problems in environmental modeling and remediation: Groundwater contaminant transport. Final project report 1998

International Nuclear Information System (INIS)

1998-04-01

The over-reaching goal of the Groundwater Grand Challenge component of the Partnership in Computational Science (PICS) was to develop and establish the massively parallel approach for the description of groundwater flow and transport and to address the problem of uncertainties in the data and its interpretation. This necessitated the development of innovative algorithms and the implementation of massively parallel computational tools to provide a suite of simulators for groundwater flow and transport in heterogeneous media. This report summarizes the activities and deliverables of the Groundwater Grand Challenge project funded through the High Performance Computing grand challenge program of the Department of Energy from 1995 through 1997

Grand Challenges in Music Information Research

OpenAIRE

Goto, Masataka

2012-01-01

This paper discusses some grand challenges in which music information research will impact our daily lives and our society in the future. Here, some fundamental questions are how to provide the best music for each person, how to predict music trends, how to enrich human-music relationships, how to evolve new music, and how to address environmental, energy issues by using music technologies. Our goal is to increase both attractiveness and social impacts of music information research in the fut...
Nebula Scale Mixing Between Non-Carbonaceous and Carbonaceous Chondrite Reservoirs: Testing the Grand Tack Model with Almahata Sitta Stones

Science.gov (United States)

Yin, Q.-Z.; Sanborn, M. E.; Goodrich, C. A.; Zolensky, M.; Fioretti, A. M.; Shaddad, M.; Kohl, I. E.; Young, E. D.

2018-01-01

There is an increasing number of Cr-O-Ti isotope studies that show that solar system materials are divided into two main populations, one carbonaceous chondrite (CC)-like and the other is non-carbonaceous (NCC)-like, with minimal mixing between them attributed to a gap opened in the propoplanetary disk due to Jupiter's formation. The Grand Tack model suggests that there should be a particular time in the disk history when this gap is breached and ensuring a subsequent large-scale mixing between S- and C-type asteroids (inner solar system and outer solar system materials), an idea supported by our recent work on chondrule (Delta)17O-(epsilon)54Cr isotope systematics.
Relations between the Grand Duchy of Lithuania and Kazan Khanate (1506–1552

Directory of Open Access Journals (Sweden)

Ya.V. Pilipchuk

2014-09-01

Full Text Available This article considers the relationship between the Grand Duchy of Lithuania and Khanate of Kazan. The aim of this study is to analyze the dynamics and characteristics of the relations of the Kazan Khanate with Grand Duchy of Lithuania. Jagiellonian eastern policy is rightfully considered as one of the most important policy directions of the Polish Kings and Grand Dukes of Lithuania in the 16th century. Researchers have traditionally paid much more attention to the history of relations of the Crimean Khanate with Lithuania and Poland. Relations of the Grand Duchy of Lithuania with Kazan Khanate have been considered in the source study articles by D. Mustafina and B. Trepavlov analyzing the content of documents preserved in the Lithuanian State Archives (Lithuanian Methric. The main theme of this article is the military and political history of Eastern Europe in the first half of the 16th century. The author aims to clarify to what extent the European policy of the Kazan Khanate depended on the personalities of Sahib Giray and Safa Giray and their personal relations with Sigismund I the Old. The novelty of this study lies in the fact that the author is the first to present to the researchers’ attention a complete picture of the Kazan-Lithuanian relations rather than focusing on particular issues of relations between the individual Grand Dukes and khans. The article examines the history of the interaction of the Kazan Tatars with Lithuanians and Poles in the context of relations of Lithuania with the Russian State and Crimean Khanate. Attempts to establish an anti-Russian alliance were undertaken during the first half of the 16th century. Mohammed Amin, from the dynasty of Ulugh Muhammad, expressed interest in the establishment of the union in 1506 only by the fact that it was profitable for him. In 1516–1518, the proposals of Sigismund I the Old to make an alliance did not meet the response in Kazan. In general, the dynasty of Ulugh Muhammad
Complementary Research on Student Geoscience Learning at Grand Canyon by Means of In-situ and Virtual Modalities

Science.gov (United States)

Semken, S. C.; Ruberto, T.; Mead, C.; Bruce, G.; Buxner, S.; Anbar, A. D.

2016-12-01

Education through exploration—typically in the field—is fundamental in geoscience. But not all students enjoy equal access to field-based learning, while technological advances afford ever more immersive, rich, and student-centered virtual field experiences. No virtual modalities yet conceived can supplant field-based learning, but logistical and financial contraints can render them the only practical option for enabling most students to explore pedagogically powerful but inaccessible places located across and even beyond Earth. We are producers of a growing portfolio of immersive virtual field trips (iVFTs) situated around the globe, and engaged in research on iVFT effectiveness. Our methods are more complementary than comparative, given that virtual and in-situ modalities have distinct advantages and disadvantages. In the case of iVFTs, these factors have not yet been well-studied. We conducted a mixed-methods complementary study in an introductory historical-geology class (n = 120) populated mostly by non-majors and representing the diversity of our large urban Southwestern research university. For the same course credit, students chose either an in-person field trip (ipFT) to Grand Canyon National Park (control group) or an online Grand Canyon iVFT (experimental group) to be done in the same time interval. We collected quantitative and qualitative data from both groups before, during, and after both interventions. Learning outcomes based on content elements of the Trail of Time Exhibition at Grand Canyon were assessed using pre/post concept sketching and formative inquiry exercises. Student attitudes and novelty-space factors were assessed pre- and post-intervention using the PANAS instrument of Watson and Clark and with questionnaires tailored to each modality. Coding and comparison of pre/post concept sketches showed improved conceptual knowledge in both groups, but more so in the experimental (iVFT) group. Emergent themes from the pre/post questionnaires
Cosmological origin of the grand-unification mass scale

International Nuclear Information System (INIS)

Brout, R.; Englert, F.; Spindel, P.

1979-01-01

The origin of the universe as a quantum phenomenon leads to a self-consistently generated space-time structure in which the mass of the created particles is O (kappa/sup -1/2/). We interpret the origin of the universe as a phase transition in which the grand unified symmetry is spontaneously broken
The geomorphic effectiveness of a large flood on the Rio Grande in the Big Bend region: insights on geomorphic controls and post-flood geomorphic response

Science.gov (United States)

Dean, David J.; Schmidt, John C.

2013-01-01

Since the 1940s, the Rio Grande in the Big Bend region has undergone long periods of channel narrowing, which have been occasionally interrupted by rare, large floods that widen the channel (termed a channel reset). The most recent channel reset occurred in 2008 following a 17-year period of extremely low stream flow and rapid channel narrowing. Flooding was caused by precipitation associated with the remnants of tropical depression Lowell in the Rio Conchos watershed, the largest tributary to the Rio Grande. Floodwaters approached 1500 m3/s (between a 13 and 15 year recurrence interval) and breached levees, inundated communities, and flooded the alluvial valley of the Rio Grande; the wetted width exceeding 2.5 km in some locations. The 2008 flood had the 7th largest magnitude of record, however, conveyed the largest volume of water than any other flood. Because of the narrow pre-flood channel conditions, record flood stages occurred. We used pre- and post-flood aerial photographs, channel and floodplain surveys, and 1-dimensional hydraulic models to quantify the magnitude of channel change, investigate the controls of flood-induced geomorphic changes, and measure the post-flood response of the widened channel. These analyses show that geomorphic changes included channel widening, meander migration, avulsions, extensive bar formation, and vertical floodplain accretion. Reach-averaged channel widening between 26 and 52% occurred, but in some localities exceeded 500%. The degree and style of channel response was related, but not limited to, three factors: 1) bed-load supply and transport, 2) pre-flood channel plan form, and 3) rapid declines in specific stream power downstream of constrictions and areas of high channel bed slope. The post-flood channel response has consisted of channel contraction through the aggradation of the channel bed and the formation of fine-grained benches inset within the widened channel margins. The most significant post-flood geomorphic
Inventario de fuentes hídricas superficiales en las cuencas alta y media del río Jaquibamba

OpenAIRE

Autoridad Nacional del Agua. Autoridad Administrativa del Agua VI Marañón

2013-01-01

Estima en forma cualitativa y cuantitativa las fuentes de agua superficial que comprenden los cursos de agua, manantiales, bofedales, almacenamientos (lagunas y represas) y otras fuentes naturales de agua superficial, en la cuenca alta y media del río Jadibamba (Microcuenca de la Quebrada Lluspioc, Microcuenca de la Quebrada Pencayoc y la Intercuenca Alto Jadibamba). Cabe indicar que este estudio ha sido elaborado en el marco de la actividad "Inventario de recursos hídricos en las cabeceras d...
A checklist of the mammals (Mammalia) from Durango, western Mexico

OpenAIRE

García-Mendoza, Diego; López-González, Celia

2013-01-01

An updated list of the mammals of Durango state, Mexico was built from literature records and Museum specimens. A total of 139 species have been recorded, representing 28.3 % of the Mexican terrestrial mammals, and 25.1 % species more compared to the previous account. Two species have been extirpated from the state, 23 are endemic to Mexico. Four major ecoregions have been previously defined for the state, Arid, Valleys, Sierra, and Quebradas. Species richness is highest at the Quebradas, a t...
Urban Waters and the Middle Rio Grande/Albuquerque (New Mexico)

Science.gov (United States)

Middle Rio Grande/Albuquerque (New Mexico) of the Urban Waters Federal Partnership (UWFP) reconnects urban communities with their waterways by improving coordination among federal agencies and collaborating with community-led efforts.
Grande Ronde Basin Chinook Salmon Captive Brood and Conventional Supplementation Programs, 2002 Annual Report.

Energy Technology Data Exchange (ETDEWEB)

Carmichael, Richard W. (Oregon Department of Fish and Wildlife, La Grande, OR)

2003-07-01

Endangered Species Permit Number 1011 (formerly Permit No. 973) authorizes ODFW to take listed spring chinook salmon juveniles from Catherine Creek (CC), Lostine River (LR) and Grande Ronde River (GR) for research and enhancement purposes. Modification 2 of this permit authorizes ODFW to take adults for spawning and the production and release of smolts for the Captive and Conventional broodstock programs. This report satisfies the requirement that an annual report be submitted. Herein we report on activities conducted and provide cursory data analyses for the Grande Ronde spring chinook salmon Captive and Conventional broodstock projects from 1 January-31 December 2002. The Grande Ronde Basin Spring Chinook Salmon Captive Broodstock Project is designed to rapidly increase numbers of salmon in stocks that are in imminent danger of extirpation. Parr are captured in Catherine Creek, upper Grande Ronde River and Lostine River and reared to adulthood in captivity. Upon maturation, they are spawned (within stocks) and their progeny reared to smoltification before being released into the natal stream of their parents. This program is co-managed by ODFW, National Marine Fisheries Service, the Nez Perce Tribe and Confederated Tribes of the Umatilla Indian Reservation.
Geologic studies of Irati formation in South Brazil

Energy Technology Data Exchange (ETDEWEB)

Padula, V T

1968-07-01

Besides oil-shale deposits occurring in several states in Brazil, those of the Permian Irati Formation, lying nearly continuous for 1,700 km from the State of Sao Paulo to the Brazil-Uruguay frontier, are the most extensive and promising for commercial exploitation. Although the lacustrine origin Tertiary shales in the Paraiba Valley are about 35 m thick, and yield 4 to 13% of oil, and contain about 317,460,317 cu m (2 billion bbl) of oil, their high moisture content (about 35%) makes them less attractive for exploitation. In Rio Grande do Sul and S. Parana, the Irati Formation has 2 distinct beds of oil shale separated by nonbituminous shale and limestone. In N. Parana, in Santa Catarina, and Sao Paulo, oil shales in the Irati Formation are intercalated with nonbituminous shale, and dolomite or limestone. The oil shales are dark brown to black, finely laminated, fissile, and hard, but weather to a reddish brown regolith that in places is 10 m thick. They contain 2 to 14% of oil recoverable by destructive distillation; their density ranges from about 1.80 to 2.45, generally decreasing with increasing content of organic matter.
Geographic distribution of genetic diversity in populations of Rio Grande Chub Gila pandora

Science.gov (United States)

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

2016-01-01

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

International Nuclear Information System (INIS)

Del Aguila, F.; Mendez, A.

1981-01-01

We derive necessary and sufficient conditions to be satisfied by any expanded electroweak gauge model in order to reproduce the standard model low-energy neutral current predictions. These conditions imply several constraints on the neutral gauge boson masses and the quantum number assignments for the ordinary fermions. Using these conditions, we prove that the popular grand unified theories based on the gauge groups SO(10) and E6 can only accommodate trivial extensions of the standard model. As a consequence, if any of these grand unified models works at some energy scale, present low-energy neutral current phenomenology implies that the Z-boson must be produced with the expected mass and couplings to the ordinary fermions. Any additional neutral gauge boson (with the possible exception of very heavy ones) could only be produced in hadronic collisions and it would not decay in e + e - . (orig.)
Dynkin weights and global supersymmetry in grand unification

International Nuclear Information System (INIS)

Frampton, P.H.; Kephart, T.W.

1982-01-01

The requirement that supersymmetry be unbroken in a supersymmetrized gauge theory is shown to imply vanishing Dynkin weight of the components of the Higgs field representation receiving vacuum expectation values. As a corollary a compact expression is obtained for the Dynkin weights of general SU(N) representations. Examples are given for supersymmetrized grand unified theories
Geomorphology of plutonium in the Northern Rio Grande

Energy Technology Data Exchange (ETDEWEB)

Graf, W.L. [Arizona Univ., Tempe, AZ (United States). Dept., of Geography

1993-03-01

Nearly all of the plutonium in the natural environment of the Northern Rio Grande is associated with soils and sediment, and river processes account for most of the mobility of these materials. A composite regional budget for plutonium based on multi-decadal averages for sediment and plutonium movement shows that 90 percent of the plutonium moving into the system is from atmospheric fallout. The remaining 10 percent is from releases at Los Alamos. Annual variation in plutonium flux and storage exceeds 100 percent. The contribution to the plutonium budget from Los Alamos is associated with relatively coarse sediment which often behaves as bedload in the Rio Grande. Infusion of these materials into the main stream were largest in 1951, 1952, 1957, and 1968. Because of the schedule of delivery of plutonium to Los Alamos for experimentation and weapons manufacturing, the latter two years are probably the most important. Although the Los Alamos contribution to the entire plutonium budget was relatively small, in these four critical years it constituted 71--86 percent of the plutonium in bedload immediately downstream from Otowi.
Geomorphology of plutonium in the Northern Rio Grande

International Nuclear Information System (INIS)

Graf, W.L.

1993-03-01

Nearly all of the plutonium in the natural environment of the Northern Rio Grande is associated with soils and sediment, and river processes account for most of the mobility of these materials. A composite regional budget for plutonium based on multi-decadal averages for sediment and plutonium movement shows that 90 percent of the plutonium moving into the system is from atmospheric fallout. The remaining 10 percent is from releases at Los Alamos. Annual variation in plutonium flux and storage exceeds 100 percent. The contribution to the plutonium budget from Los Alamos is associated with relatively coarse sediment which often behaves as bedload in the Rio Grande. Infusion of these materials into the main stream were largest in 1951, 1952, 1957, and 1968. Because of the schedule of delivery of plutonium to Los Alamos for experimentation and weapons manufacturing, the latter two years are probably the most important. Although the Los Alamos contribution to the entire plutonium budget was relatively small, in these four critical years it constituted 71--86 percent of the plutonium in bedload immediately downstream from Otowi
The New Totalitarians: Social Identities and Radical Islamist Political Grand Strategy

National Research Council Canada - National Science Library

Macdonald, Douglas J

2007-01-01

... of the ideologically-driven grand political strategy of the Islamist extremists, which represents a totalitarian, transnational, and, in many versions, universalist social revolutionary movement...
Grand Canonical Ensembles in General Relativity

International Nuclear Information System (INIS)

Klein, David; Yang, Wei-Shih

2012-01-01

We develop a formalism for general relativistic, grand canonical ensembles in space-times with timelike Killing fields. Using that, we derive ideal gas laws, and show how they depend on the geometry of the particular space-times. A systematic method for calculating Newtonian limits is given for a class of these space-times, which is illustrated for Kerr space-time. In addition, we prove uniqueness of the infinite volume Gibbs measure, and absence of phase transitions for a class of interaction potentials in anti-de Sitter space.
Produccion de plantas grandes usando minicontenedores

Science.gov (United States)

R. Kasten Dumroese; Thomas D. Landis

2012-01-01

En AmÃ©rica del Norte hay cada vez mÃ¡s interÃ©s por la producciÃ³n hÃbrida o mixta. La misma consiste en cultivar plantines en contenedores de pequeÃ±o volumen y luego trasplantarlos; el trasplante se puede realizar a canteros en el suelo como en la producciÃ³n a raÃz desnuda o bien a contenedores mÃ¡s grandes. Originalmente se llamaban plantines "plug+", "...
Experiências Urbanas: Migrantes e Modos de Viver e Trabalhar na Periferia de Campina Grande na Década de 1960 * Urban Experiences: Migrants and Ways of Living and Working in the Outskirts of Campina Grande in the 1960s

Directory of Open Access Journals (Sweden)

HILMARIA XAVIER DA SILVA

2013-04-01

Full Text Available Resumo: A partir do final da década de 1940 e início de 1950, Campina Grande passa por uma significativa urbanização e expansão, favorecida pelo crescimento econômico. Observamos que trabalhadores do campo migraram da zona rural para a zona urbana de Campina Grande à medida que o trabalho na lavoura estava se tornando inviável em razão das secas e viam no centro urbano de Campina possibilidades outras de trabalhar e ter condições de vida mais dignas. Nosso trabalho intenta refletir sobre como alguns populares migraram para Campina Grande no fim da década de 1950 e década de 1960, modificando suas práticas no mundo do trabalho e alterando as características da malha urbana, já que, concentrando-se na periferia, homens e mulheres outrora lavradores passaram agora a desempenhar funções de vigilantes, pedreiros, lavadeiras, vendedores ambulantes, carroceiros, quebradores de pedra, dentre outras.Palavras-chave: Migração, Campina Grande, Trabalho. Abstract: From the late 1940s and early 1950s, Campina Grande undergoes a significant urbanization and expansion, favored by economic growth. We observed that rural workers migrated from rural to urban area in Campina Grande in so far as the farming activity was becoming unviable due to droughts and they could see, in the urban center of Campina, other possibilities of working and worthier life conditions. Our work attempts to reflect on how some popular migrated to Campina Grande in the late 1950s and 1960s, changing their practices in the workplace and changing the characteristics of the city, because massing in the periphery, men and women who were ploughpeople in past, have now the role of watchers, bricklayers, washerwomen, street vendors, cart drivers, stone breakers, among others.Keywords: Migration – Campina Grande – Work.

Pacing of Paleozoic macroevolutionary rates by Milankovitch grand cycles.

Science.gov (United States)

Crampton, James S; Meyers, Stephen R; Cooper, Roger A; Sadler, Peter M; Foote, Michael; Harte, David

2018-05-29

Periodic fluctuations in past biodiversity, speciation, and extinction have been proposed, with extremely long periods ranging from 26 to 62 million years, although forcing mechanisms remain speculative. In contrast, well-understood periodic Milankovitch climate forcing represents a viable driver for macroevolutionary fluctuations, although little evidence for such fluctuation exists except during the Late Cenozoic. The reality, magnitude, and drivers of periodic fluctuations in macroevolutionary rates are of interest given long-standing debate surrounding the relative roles of intrinsic biotic interactions vs. extrinsic environmental factors as drivers of biodiversity change. Here, we show that, over a time span of 60 million years, between 9 and 16% of the variance in biological turnover (i.e., speciation probability plus species extinction probability) in a major Early Paleozoic zooplankton group, the graptoloids, can be explained by long-period astronomical cycles (Milankovitch "grand cycles") associated with Earth's orbital eccentricity (2.6 million years) and obliquity (1.3 million years). These grand cycles modulate climate variability, alternating times of relative stability in the environment with times of maximum volatility. We infer that these cycles influenced graptolite speciation and extinction through climate-driven changes to oceanic circulation and structure. Our results confirm the existence of Milankovitch grand cycles in the Early Paleozoic Era and show that known processes related to the mechanics of the Solar System were shaping marine macroevolutionary rates comparatively early in the history of complex life. We present an application of hidden Markov models to macroevolutionary time series and protocols for the evaluation of statistical significance in spectral analysis.
The Grand Challenges Discourse: Transforming Identity Work in Science and Science Policy.

Science.gov (United States)

Kaldewey, David

2018-01-01

This article analyzes the concept of "grand challenges" as part of a shift in how scientists and policymakers frame and communicate their respective agendas. The history of the grand challenges discourse helps to understand how identity work in science and science policy has been transformed in recent decades. Furthermore, the question is raised whether this discourse is only an indicator, or also a factor in this transformation. Building on conceptual history and historical semantics, the two parts of the article reconstruct two discursive shifts. First, the observation that in scientific communication references to "problems" are increasingly substituted by references to "challenges" indicates a broader cultural trend of how attitudes towards what is problematic have shifted in the last decades. Second, as the grand challenges discourse is rooted in the sphere of sports and competition, it introduces a specific new set of societal values and practices into the spheres of science and technology. The article concludes that this process can be characterized as the sportification of science, which contributes to self-mobilization and, ultimately, to self-optimization of the participating scientists, engineers, and policymakers.
Site observational work plan for the UMTRA Project Site at Grand Junction, Colorado

International Nuclear Information System (INIS)

1996-03-01

The U.S. Department of Energy (DOE) has prepared this initial site observational work plan (SOWP) for the Uranium Mill Tailings Remedial Action (UMTRA) Project site in Grand Junction, Colorado. This SOWP is one of the first UMTRA Ground Water Project documents developed to select a compliance strategy that meets the UMTRA ground water standards (40 CFR Part 192, as amended by 60 FR 2854) for the Grand Junction site. This SOWP applies information about the Grand Junction site to the compliance strategy selection framework developed in the UMTRA Ground Water Project draft programmatic environmental impact statement (PEIS). This risk-based, decision-making framework identifies the decision logic for selecting compliance strategies that could be used to meet the ground water standards. The DOE goal is to use the observational method to implement a cost-effective site strategy that complies with the ground water standards and protects human health and the environment. Based on an evaluation of the site characterization and risk assessment data available for the preparation of this SOWP, DOE proposes that the most likely compliance strategy for the Grand Junction site is no remediation based on the application of supplemental standards. This proposed strategy is based on a conceptual site model that indicates site-related contamination is confined to a limited-use aquifer as defined in the ground water standards
Interplay between grand unification and supersymmetry in SU(5 ...

Indian Academy of Sciences (India)

energy MSSM. break the rank, Aulakh and his collaborators [10–12] have showed that R-parity is exact all the way down to low energies. In this case, grand unification tells us something about supersymmetry and even dark matter. In this article ...
2017 NOAA/OCM Unmanned Aerial System Lidar: Grand Bay NERR

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Quantum Spatial (QSI) and PrecisionHawk (PH) collected lidar for test sites within the Grand Bay National Estuarine Research Reserve (NERR) using an unmanned aerial...
Engineering assessment of inactive uranium mill tailings, Grand Junction site, Grand Junction, Colorado. A summary of the Phase II, Title I

International Nuclear Information System (INIS)

1977-10-01

Ford, Bacon and Davis Utah Inc. has performed an engineering assessment of the problems resulting from the existence of radioactive uranium mill tailings at Grand Junction, Colorado. The Phase II, Title I services include the preparation of topographic maps, the performance of core drillings and radiometric measurements sufficient to determine areas and volumes of tailings and radiation exposures of individuals and nearby populations, the investigation of site hydrology and meteorology, and the evaluation and costing of alternative corrective actions. Radon gas release from the 1.9 million tons of tailings at the Grand Junction site constitutes the most significant environmental impact, although windblown tailings and external gamma radiation are also factors. The eight alternative actions presented range from millsite decontamination (Option I), to adding various depths of stabilization cover material (Options II and III), to removal of the tailings to long-term storage sites and decontamination of the present site (Options IV through VIII). Cost estimates for the eight options range from $470,000 to $18,130,000. Reprocessing the tailings for uranium recovery does not appear to be economically attractive at present
Plutonium and the Rio Grande: Environmental change and contamination in the nuclear age

International Nuclear Information System (INIS)

Graf, W.L.

1994-01-01

An attempt is made to analyze questions concerning the issue of plutonium in the Rio Grande. The author describes in great detail how he arrived at the conclusions. The objective has been to produce research that is absolutely transparent, so that its results can be fairly evaluated and duplicated by anyone. The results of this work show that plutonium from Los Alamos National Laboratory and atmospheric fallout has been deposited along the Rio Grande in small, though detectable, quantities in certain predictable places
Clinical Immersion and Biomedical Engineering Design Education: "Engineering Grand Rounds".

Science.gov (United States)

Walker, Matthew; Churchwell, André L

2016-03-01

Grand Rounds is a ritual of medical education and inpatient care comprised of presenting the medical problems and treatment of a patient to an audience of physicians, residents, and medical students. Traditionally, the patient would be in attendance for the presentation and would answer questions. Grand Rounds has evolved considerably over the years with most sessions being didactic-rarely having a patient present (although, in some instances, an actor will portray the patient). Other members of the team, such as nurses, nurse practitioners, and biomedical engineers, are not traditionally involved in the formal teaching process. In this study we examine the rapid ideation in a clinical setting to forge a system of cross talk between engineers and physicians as a steady state at the praxis of ideation and implementation.
MIdentidade de classe : um olhar sobre os estivadores do porto do Rio Grande/RS

Directory of Open Access Journals (Sweden)

Thiago Cedrez da Silva

2015-06-01

Full Text Available This article aims to understand the identity notion that permeates the charaxter of the docker of the Port of Rio Grande / RS in its work universe. Starting from the theoretical framework of class identity, the reflection of documental and oral sources, as well as the existing literature on this subject, the profile of the docker of Rio Grande, between 1931 and 1960, will be analyzed.
Ureteroscopie Retrograde: Expérience de l'Hôpital Général Grand ...

African Journals Online (AJOL)

L. Niang

urétéroscopie à l'Hôpital Général Grand Yoff (HOGGY) de. Dakar (Sénégal). Sujets et méthodes : Il s'agit d'une étude descriptive de 91 urétéroscopies effectuées dans le service d'Urologie de l'Hôpital Général Grand Yoff de janvier 2012 à décembre ...
SO(10) supersymmetric grand unified theories

Science.gov (United States)

Dermisek, Radovan

The origin of the fermion mass hierarchy is one of the most challenging problems in elementary particle physics. In the standard model fermion masses and mixing angles are free parameters. Supersymmetric grand unified theories provide a beautiful framework for physics beyond the standard model. In addition to gauge coupling unification these theories provide relations between quark and lepton masses within families, and with additional family symmetry the hierarchy between families can be generated. We present a predictive SO(10) supersymmetric grand unified model with D 3 x U(1) family symmetry. The hierarchy in fermion masses is generated by the family symmetry breaking D 3 x U(1) → ZN → nothing. This model fits the low energy data in the charged fermion sector quite well. We discuss the prediction of this model for the proton lifetime in light of recent SuperKamiokande results and present a clear picture of the allowed spectra of supersymmetric particles. Finally, the detailed discussion of the Yukawa coupling unification of the third generation particles is provided. We find a narrow region is consistent with t, b, tau Yukawa unification for mu > 0 (suggested by b → sgamma and the anomalous magnetic moment of the muon) with A0 ˜ -1.9m16, m10 ˜ 1.4m16, m16 ≳ 1200 GeV and mu, M1/2 ˜ 100--500 GeV. Demanding Yukawa unification thus makes definite predictions for Higgs and sparticle masses.
Ocorrência de raiva em ovinos no Rio Grande do Sul Occurrence of rabies in sheep in Rio Grande do Sul, Brazil

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Daniel R. Rissi

2008-10-01

Full Text Available Descreve-se a ocorrência de raiva em ovinos na região Central do Rio Grande do Sul em novembro de 2003. Foram afetados dois ovinos de raça mista, um macho de três meses e uma fêmea de 2,5 anos de idade que apresentaram sinais clínicos com evolução de cinco dias e caracterizados por dificuldade de locomoção, tremores musculares, decúbito lateral, convulsões, opistótono e febre. Histologicamente havia mielomeningoencefalite não-supurativa, associada a inclusões eosinofílicas intracitoplasmáticas (corpúsculos de Negri em neurônios nos dois ovinos afetados. Em um ovino em que o gânglio de Gasser foi examinado, havia ganglionite não-supurativa. As lesões concentravam-se predominantemente na substância cinzenta da medula espinhal, no tronco encefálico e no cerebelo. Antígeno viral foi detectado em seções selecionadas de ponte e bulbo submetidas ao teste de imuno-histoquímica utilizando anticorpo policlonal anti-ribonucleoproteína do vírus da raiva. Os casos ocorreram em meio a um surto de raiva bovina transmitida por morcegos e foram considerados, com bases epidemiológicas, como transmitidos da mesma forma, como ocorre na raiva endêmica de bovinos no Rio Grande do Sul.Cases of rabies in sheep occurring in November 2003, in central Rio Grande do Sul state, Brazil, are described. A 3-month-old male, and a 2.5-month-old female sheep were affected. Clinical signs were characterized by abnormal gait, trembling, lateral recumbency, convulsion, opisthotonus, and fever. Histological findings included a non-suppurative myelomeningoencephalitis associated with intracytoplasmic eosinophilic inclusion (Negri bodies in neurons. Lesions were predominantly observed in gray matter of the spinal cord, brainstem and cerebellum. There was non-suppurative Gasserian ganglionitis in one sheep in which this structure was examined. Immunohistochemistry using rabies virus ribonucleoprotein polyclonal antibody yelded positive result in brain
Passeport pour les deux infinis vers l'infiniment grand, vers l'infiniment petit

CERN Document Server

Descotes-Genon, Sébastien; Kerhoas-Cavata, Sophie; Paul, Jacques; Robert, Jean-Luc; Royole-Degieux, Perrine

2016-01-01

Où commence l'infiniment grand ? Où finit l'infiniment petit ? Les chercheurs ont identifié le rayonnement fossile émis il y a 13,8 milliards d'année et qui permet de remonter aux origines de l'Univers. A l'opposé, le modèle standard a identifié 12 particules élémentaires et trois forces fondamentales qui permettent de décrire la constitution ultime de la matière. Est-ce à dire que tout est terminé, que plus rien n'est à découvrir ? Certainement pas ! Tandis que les outils d'observation deviennent plus précis, la nécessité d'établir des passerelles entre l'infiniment grand et l'infini petit devient pressante. Dans cette nouvelle édition actualisée, les plus grands spécialistes présentent un panorama des connaissances actuelles des deux infinis.
Grand Junction health experience from use of uranium tailings in building construction

International Nuclear Information System (INIS)

Franz, L.W.

1980-01-01

This presentation deals with the possible health effects of the Grand Junction, Colorado exposure situation in which uranium mill tailings were used for building purposes from 1952 to 1966. There are no significant differences between the study group and the control groups with reference to length of residence, to health status prior to diagnosis, or the exposure to tailings location. The excess incidence of leukemia in the Grand Junction area is not explained by this study of proximity to tailings structures. These data neither prove nor disprove the safety of long-term exposure at these low levels of gamma rays
Method of collective variables with reference system for the grand canonical ensemble

International Nuclear Information System (INIS)

Yukhnovskii, I.R.

1989-01-01

A method of collective variables with special reference system for the grand canonical ensemble is presented. An explicit form is obtained for the basis sixth-degree measure density needed to describe the liquid-gas phase transition. Here the author presents the fundamentals of the method, which are as follows: (1) the functional form for the partition function in the grand canonical ensemble; (2) derivation of thermodynamic relations for the coefficients of the Jacobian; (3) transition to the problem on an adequate lattice; and (4) obtaining of the explicit form for the functional of the partition function
Pesquisa sobre tabagismo entre médicos de Rio Grande, RS: prevalência e perfil do fumante Cigarette smoking survey among physicians of Rio Grande, Rio Grande do Sul: prevalence and smoker's profile

Directory of Open Access Journals (Sweden)

LUÍS SUÁREZ HALTY

2002-04-01

Full Text Available O tabagismo é um grave problema de saúde pública. A luta antitabágica está em grande parte alicerçada nos profissionais da área da saúde, em especial, nos médicos. O médico frente à sua comunidade é um modelo de conduta e como tal deve dar o exemplo de não fumar. Objetivo: Avaliar a magnitude e distribuição do tabagismo na população médica de Rio Grande, RS, e caracterizar o perfil do fumante. Método: Os dados foram obtidos no ano de 1999, através da aplicação e análise de questionário, elaborado segundo modelo proposto pela OMS, entre 333 médicos, sendo 213 (64% homens e 120 (36% mulheres. A média de idade da amostra foi de 43 (± 10,5 anos, com 65,1% no grupo de 30 a 50 anos. Resultados: Constatou-se prevalência de tabagismo atual de 18,3% (15,9% fumantes regulares + 2,4% fumantes ocasionais. A prevalência de tabagismo regular quanto ao gênero foi de 17,8% entre homens e 12,5% entre mulheres, sem diferença estatisticamente significante (p > 0,05. O consumo de cigarros foi, em média, de 24,3 maços/ano, sendo maior no sexo masculino e aumentando com a idade. Verificou-se que 86,8% dos fumantes iniciaram o tabagismo antes dos 20 anos de idade, tendo por motivação, em 63,2% dos casos, a vontade própria e/ou influência dos amigos. Conclusão: Embora a prevalência tabágica entre os médicos rio-grandinos seja inferior à de outros países, ainda é inaceitável, visto que esta categoria tem papel determinante na prevenção e na luta antitabágica, justificando uma campanha contra o fumo entre eles.Smoking is a serious public health problem. The campaign against tobacco is largely supported by health professionals, especially doctors. The physician is a model for the community and therefore should give the example avoiding smoking. Objectives: This work seeks to evaluate the magnitude and the distribution of smoking habit among physicians in Rio Grande, state of Rio Grande do Sul, southern Brazil, and
The Grand Strategy of Charles de Gaulle

Science.gov (United States)

1989-09-08

4. TITLE AND SUBTITLE The Grand Startegy of Charles de Gaulle 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S...dependent on French influence within NATO and the Common Market . De Gaulle frequently used these fora to veto British and American initiatives. As Cook...the reserve currency. Gold would be the basis of international finance and a French-dominated European Common Market would provide the framework
Neutrino mixing in a grand unified theory

International Nuclear Information System (INIS)

Milton, K.; Tanaka, K.

1980-01-01

Neutrino mixing in a grand unified theory in which the neutrino mass matrix is determined by the Gell-Mann-Ramond-Slansky mechanism was investigated. With an arbitrary real right-handed Majorana mass matrix which incorporates three neutrino mass scales, the effects of the up-quark mass matrix are found to be dominant and as a result no significant mixing of ν/sub e/ occurs, while ν/sub μ/ - ν/sub γ/ mixing can be substantial
Espécies de Adelpha Hübner, [1819] (Lepidoptera, Nymphalidae, Limenitidinae ocorrentes no Rio Grande do Sul, Brasil

Directory of Open Access Journals (Sweden)

Rocco Alfredo Di Mare

2003-01-01

Full Text Available Species of Adelpha Hübner, [1819] (Lepidoptera, Nymphalidae, Limenitidinae occurring in Rio Grande do Sul State, Brazil. Based on literature, collections and sampled butterflies, a list of twelve species of Adelpha Hübner occurring in Rio Grande do Sul State is presented, including host plants. Adelpha epizygis Fruhstorfer, [1916], Adelpha falcipennis Fruhstorfer, [1916], Adelpha goyama Schaus, 1902 and Adelpha isis (Drury, 1782 are new reports to Rio Grande do Sul. The species are illustrated and keyed.
Wildlife Mitigation and Restoration for Grand Coulee Dam: Blue Creek Project, Phase 1.

Energy Technology Data Exchange (ETDEWEB)

Merker, Christopher

1993-04-01

This report is a recommendation from the Spokane Tribe to the Northwest Power Planning Council (NPPC) for partial mitigation for the extensive wildlife and wildlife habitat losses on the Spokane Indian Reservation caused by the construction of Grand Coulee Dam. NPPC`s interim wildlife goal over the next 7 years for the Columbia hydropower system, is to protect, mitigate and enhance approximately 35% basin wide of the lost habitat units. Grand Coulee Dam had the greatest habitat losses of any Dams of the Wildlife Rule.

Petroleum Systems and Assessment of Undiscovered Oil and Gas in the Raton Basin - Sierra Grande Uplift Province, Colorado and New Mexico - USGS Province 41

Science.gov (United States)

Higley, Debra K.

2007-01-01

Introduction The purpose of the U.S. Geological Survey's (USGS) National Oil and Gas Assessment is to develop geologically based hypotheses regarding the potential for additions to oil and gas reserves in priority areas of the United States. The USGS recently completed an assessment of undiscovered oil and gas resources of the Raton Basin-Sierra Grande Uplift Province of southeastern Colorado and northeastern New Mexico (USGS Province 41). The Cretaceous Vermejo Formation and Cretaceous-Tertiary Raton Formation have production and undiscovered resources of coalbed methane. Other formations in the province exhibit potential for gas resources and limited production. This assessment is based on geologic principles and uses the total petroleum system concept. The geologic elements of a total petroleum system include hydrocarbon source rocks (source rock maturation, hydrocarbon generation and migration), reservoir rocks (sequence stratigraphy and petrophysical properties), and hydrocarbon traps (trap formation and timing). The USGS used this geologic framework to define two total petroleum systems and five assessment units. All five assessment units were quantitatively assessed for undiscovered gas resources. Oil resources were not assessed because of the limited potential due to levels of thermal maturity of petroleum source rocks.
78 FR 16569 - Iowa Pacific Holdings, LLC, Permian Basin Railways, and San Luis & Rio Grande Railroad-Corporate...

Science.gov (United States)

2013-03-15

... DEPARTMENT OF TRANSPORTATION Surface Transportation Board [Docket No. FD 35721] Iowa Pacific Holdings, LLC, Permian Basin Railways, and San Luis & Rio Grande Railroad--Corporate Family Transaction... subsidiaries Permian Basin Railways (PBR) and San Luis & Rio Grande Railroad (SLRG), and Massachusetts Coastal...
Analysis of the mass media coverage of the Gates Foundation grand challenges in global health initiative.

Science.gov (United States)

Verma, G

2009-03-01

The Grand Challenges were launched in 2003 by the Gates Foundation and other collaborators to address the health needs of developing countries. This paper outlines the current problem with health research and development in the context of inequality as conveyed by the 90/10 divide. The paper then looks at the focus and nature of press reporting of global health issues by analysing how press articles have portrayed the Grand Challenges in Global Health initiative. Analysis of the mass media illustrates that the focus of reporting on the Grand Challenges tends to be on utilitarian themes, leaving issues related to justice and equity comparatively under-reported.
Floodplain construction of the Rio Grande at El Paso, Texas, USA: response to Holocene climate change

Science.gov (United States)

Hall, Stephen A.; Peterson, John A.

2013-04-01

The Rio Grande is one of the larger rivers in North America, and the development of its floodplain is related to Holocene climate and climate change. The late Pleistocene through early Holocene channel is characterized by a meander or braided system with lateral cutting and backfilling, resulting in the valley-wide deposition of massive to cross-bedded, fine-to-medium textured sand. The late Pleistocene-early Holocene floodplain is also the sand source for the adjacent Bolson sand sheet. The sand sheet stopped accumulating new sand 5000 yrs ago, an event directly related to the shutting off of the sand supply caused by the deposition of overbank muds that covered and sealed the floodplain surface. During the middle Holocene, the river may have dried intermittently with the floodplain becoming deflated and local sand dunes forming on the floodplain. After 5000 yrs the climate was less arid and the river shifted to a regime of increased flooding and overbank deposition of silt and clay. By 2500 yrs, a late Holocene period of wet climate resulted in further overbank deposition and the formation of a cumulic Mollisol across the floodplain, the Socorro paleosol. The period of wet climate corresponds to the Audubon Neoglacial and active rock glaciers in the southern Rocky Mountains, speleothem growth in nearby caves, and other evidence for wet-cool conditions in the region. After 1000 yrs, the climate became drier, and the deposition and accumulation of overbank muds by the flooding Rio Grande came to a halt. Even though the river has flooded often in historic times, and presumably during late prehistoric times as well, there is little evidence for deposition of overbank sediments on the floodplain since A.D. 1000. Accordingly, the present-day surface of the Lower Valley is ten centuries old. Three channels occur on the US side of the Lower Valley floodplain, and during the past 2500 yrs stream flow has shifted from one to the other by the avulsion process of channel
Use of fog water to the initial establishment of tree species under conditions of barren Lomas in the Quebrada Topará, Chincha-Perú

Science.gov (United States)

Vargas, A.; Cabrera, R.; Bederski, K.; Orellana, A.

2010-07-01

The Quebrada Topara is located in the Peruvian coastal desert (13012'L.S, 76009'L.W.) and is influenced by the fog during the winter months, these conditions of high humidity allows its use to achieve the establishment of a permanent vegetation cover Huaquina hill, which is representative at the place of study. Uncounted fog water can be captured and used for irrigation of plants. Also due to the absence of any tree species coverage in this region is not known which or which could have a better performance under these environmental conditions, We used to native species Caesalpinia spinosa "tara" and Schinus molle "molle" also introduced species Casuarina equisetifolia "Casuarina", as these could have a better adaptation. Soil analysis determined a high salinity and nitrogen poverty, preventing water infiltration into the soil and is not used by the plant so that the saline soil difficult to establish plants. This research can be considered an exploratory phase, the objectives were: to determine the potential for fog water harvesting to capture in the study area, to assess for 20 months the initial performance of the species tara, molle and casuarina, and profit incorporation in the final sowing of organic matter and soil amendments to facilitate a better development of plants. 3 standard fog collector (SFC) proposed by Schemenauer and Cereceda (1993) were installed and we evaluated the capture water during 31 months, from June 2007 to December 2009, finding much water collected in the winter months, the average annual in the 3 SFC was similar (1.1, 1.2 and 1.1 L m -2 day-1) which allows us to plan according to necessary the best way to harness and store water to supply the plants. It was found that native species, tara and molle were more adaptable to extreme conditions of the place that introduced casuarina species. The tara does grow faster in height and stem diameter, also achieves a good coverage to intercept fog water itself making it more viable and capable
Preliminary hydrogeologic assessment near Tassi and Pakoon Springs, western part of Grand Canyon-Parashant National Monument, Arizona

Science.gov (United States)

Truini, Margot

2013-01-01

Tassi and Pakoon Springs are both in the Grand Wash Trough in the western part of Grand Canyon-Parashant National Monument on the Arizona Strip. The monument is jointly managed by the National Park Service (NPS) and the Bureau of Land Management. This study was in response to NPS’s need to better understand the influence from regional increases in groundwater withdrawals near Grand Canyon-Parashant on the groundwater discharge from Tassi and Pakoon Springs. The climate of the Arizona Strip is generally semiarid to arid, and springs in the monument provide the water for the fragile ecosystems that are commonly separated by large areas of dry washes in canyons with pinyon and juniper. Available hydrogeologic data from previous investigations included water levels from the few existing wells, location information for springs, water chemistry from springs, and geologic maps. Available groundwater-elevation data from the wells and springs in the monument indicate that groundwater in the Grand Wash Trough is moving from north to south, discharging to springs and into the Colorado River. Groundwater may also be moving from east to west from Paleozoic rocks in the Grand Wash Cliffs into sedimentary deposits in the Grand Wash Trough. Finally, groundwater may be moving from the northwest in the Mesoproterozoic crystalline rocks of the Virgin Mountains into the northern part of the Grand Wash Trough. Water discharging from Tassi and Pakoon Springs has a major-ion chemistry similar to that of other springs in the western part of Grand Canyon-Parashant. Stable-isotopic signatures for oxygen-18 and hydrogen-2 are depleted in the water from both Tassi and Pakoon Springs in comparison to other springs on the Arizona Strip. Tassi Spring discharges from multiple seeps along the Wheeler Fault, and the depleted isotopic signatures suggest that water may be flowing from multiple places into Lake Mead and seems to have a higher elevation or an older climate source. Elevated water
Seabird data collected by the Grand Banks offshore hydrocarbon industry 1999-2002 : results, limitations and suggestions for improvement

International Nuclear Information System (INIS)

Baillie, S.M.; Robertson, G.J.; Wiese, F.K.

2005-01-01

Offshore oil operations attract and concentrate migratory seabirds through an artificially enhanced food supply and lights. In order to understand the vulnerability of seabirds near offshore oil facilities, the degree of association of seabirds with these sites must be determined. Offshore oil and gas exploration on Newfoundland's Grand Banks began in the early 1980s, with first oil produced in 1997 at the Hibernia fixed platform. Additional production followed in 2002 from the Terra Nova Floating Production Storage and Offloading Vessel. As the Grand Banks oil industry grows, seismic surveys continue to be conducted and an estimated 30,000 litres of crude oil and synthetic based drilling fluids have been spilled from exploration drilling, development drilling and production oil operations between 1997 and 2002. Most of the spills occurred in winter when the number of seabirds on the Grand Banks are highest and most vulnerable to oil pollution. This report presents an evaluation of the current Grand Banks offshore oil and gas development seabird monitoring programs. It focuses mostly on seabird monitoring on fixed platforms. The objective was to assess the scientific quality of seabird-related industry programs by compiling and summarizing all available spatial and temporal seabird abundance data and deck stranded birds associated with Grand Banks offshore oil platforms from 1997 to 2002. Data on seabird distributions at sea and stranded bird encounters was collected from 8 offshore hydrocarbon sites on the northeastern Grand Banks. It was recommended that a standardized seabird monitoring and observer training program for the offshore operations in the Grand Banks region be implemented. 43 refs., 5 tabs., 16 figs., 3 appendices
Grand unification and supergravity

International Nuclear Information System (INIS)

Nanopoulos, D.V.

Grand Unified Theories (GUTs) are very successful, but they suffer from fine-tuning or hierarchy problems. It seems that more symmetry beyond the gauge symmetry is needed and indeed supersymmetric GUTs may provide the correct framework in solving the hierarchy problems. These are reviewed. From the results discussed, it is seen that for the first time in particle physics, gravity seems to play a dominant role. It may be responsible for GUT breaking, SU(2) x U(1) breaking, fermion masses, proton decay and a consistent cosmological picture. Supergravity seems to offer a consistent, effective theory for energies below the Planck scale to N=1 local SUSY but also, in the context of N=8 extended supergravity with a dynamically realized SU(8), there may be a consistent fundamental unified theory of all interactions. (U.K.)
Between two evils: Investors prefer grand corruption!

OpenAIRE

Graf Lambsdorff, Johann

2005-01-01

Recent empirical studies claim that, in addition to levels of corruption, investors are deterred by its unpredictability. I claim instead that it is petty corruption that deters investors. I employ seven subcomponents of corruption for a sample of 102 countries that appear in the 2003 Global Competitiveness Report of the WEF. The second principal component of this data depicts a grand, political type, embracing corruption in government policymaking and in judicial decisions as opposed to corr...
[Diversity and bioactivity analysis of actinomycetes isolated from grand Shangri-La soil].

Science.gov (United States)

Cao, Yanru; Jiang, Yi; Xu, Lihua

2009-01-01

To obtain new pharmaceuticals and enzymes with high activity,we studied the composition as well as antimicrobial and enzyme activities of actinomycetes in Grand Shangri-La. Using 4 media,we isolated mesophilic and psychrophilic actinomycetes from 220 soil samples collected from areas with different altitudes in Grand Shangri-La. Twenty-five representative isolates were phylogenetically analyzed based on their 16S rRNA gene sequences. Antimicrobial activities against four bacteria and seven fungi were tested using agar well diffusion method. Genes encoding type I and II polyketide synthases (PKS I, PKS II), nonribosomal peptide synthase (NRPS) and polyene cytochrome P450 hydroxylase (CYP) were screened by PCR. Furthermore,several enzyme activities of psychrophilic actinomycetes were examined. The 25 representative strains belonged to 6 suborders, 12 families and 15 genera of the order Actinomycetals. For NRPS and CYP genes screening, positive strains were 14 and 11, respectively. Among the 111 actinomycetes isolated under low-temperature conditions, 88% were psychrotroph strains, 12% were psychrophilic actinomycetes, and most of them utilized gelatin, cellulose and chitin. Actinomycetes diversity is rich in Grand Shangri-la, and has the potential for conservation and utilization of actinomycetes resources.
Winning in straight sets helps in Grand Slam tennis

NARCIS (Netherlands)

Goossens, Dries R.; Kempeneers, Jurgen; Koning, Ruud H.; Spieksma, Frits C. R.

2015-01-01

In this contribution, we study whether fatigue resulting from the previous match affects a player's chances of winning his (or her) next match in Grand Slum tennis. We measure relative fatigue levels of two opponents by looking at the difference in number of sets played in their previous match. We
78 FR 30914 - Grand River Dam Authority Notice of Application for Temporary Variance of License and Soliciting...

Science.gov (United States)

2013-05-23

.... Description of Request: Grand River Dam Authority (GRDA) requests a temporary variance, for the year 2013, to... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 1494-416] Grand River Dam Authority Notice of Application for Temporary Variance of License and Soliciting Comments, Motions To...
78 FR 43850 - Opportunity for Designation in Owensboro, KY; Bloomington, IL; Iowa Falls, IA; Casa Grande, AZ...

Science.gov (United States)

2013-07-22

... DEPARTMENT OF AGRICULTURE Grain Inspection, Packers and Stockyards Administration Opportunity for Designation in Owensboro, KY; Bloomington, IL; Iowa Falls, IA; Casa Grande, AZ; Fargo, ND; Grand Forks, ND and Plainview, TX; Areas; Request for Comments on the Official Agencies Servicing These Areas AGENCY: Grain...
75 FR 52925 - Opportunity for Designation in the Owensboro, KY; Bloomington, IL; Iowa Falls, IA; Casa Grande...

Science.gov (United States)

2010-08-30

... DEPARTMENT OF AGRICULTURE Grain Inspection, Packers and Stockyards Administration Opportunity for Designation in the Owensboro, KY; Bloomington, IL; Iowa Falls, IA; Casa Grande, AZ; Fargo, ND; Grand Forks, ND; and Plainview, TX Areas; Request for Comments on the Official Agencies Servicing These Areas AGENCY...
Guía socio-ambiental para las obras de construcción de vivienda en la ciudad de Armenia

OpenAIRE

Nivia Montenegro, Luz Stella

2017-01-01

Armenia es una ciudad con una riqueza natural y ambiental, reflejada en las 54 quebradas que conforman 18 microcuencas que recorren el territorio urbano hasta drenar a los ríos Quindío, Espejo y la Quebrada Cristales -- Estos espacios naturales incluyen fauna y flora que generan una fortaleza y riqueza ambiental en una región declarada por la Unesco en el año 2011 como paisaje cultural cafetero -- El paisaje y extenso verde de la ciudad, se ve en peligro debido al desarrollo de la construcció...
Cosmic Ray Physics with the KASCADE-Grande Observatory

Science.gov (United States)

Arteaga-Velázquez, J. C.; Apel, W. D.; Bekk, K.; Bertaina, M.; Blümer, J.; Bozdog, H.; Brancus, I. M.; Cantoni, E.; Chiavassa, A.; Cossavella, F.; Daumiller, K.; de Souza, V.; Di Pierro, F.; Doll, P.; Engel, R.; Fuhrmann, D.; Gherghel-Lascu, A.; Gils, H. J.; Glasstetter, R.; Grupen, C.; Haungs, A.; Heck, D.; Hörandel, J. R.; Huege, T.; Kampert, K.-H.; Kang, D.; Klages, H. O.; Link, K.; Łuczak, P.; Mathes, H. J.; Mayer, H. J.; Milke, J.; Mitrica, B.; Morello, C.; Oehlschläger, J.; Ostapchenko, S.; Pierog, T.; Rebel, H.; Roth, M.; Schieler, H.; Schoo, S.; Schröder, F. G.; Sima, O.; Toma, G.; Trinchero, G. C.; Ulrich, H.; Weindl, A.; Wochele, J.; Zabierowski, J.

The existence of a knee at a few PeV in the all-particle cosmic ray energy spectrum has been well established by several experiments but its physical origin has eluded researches for a long time. It is believed that keys to disentangle the mystery could be found in the spectrum and the composition of cosmic rays between 1 PeV and 1 EeV. A first detailed look into the elemental chemical abundances of cosmic rays in this energy regime was provided by both the KASCADE and the KASCADE-Grande experiments. Their measurements opened the door to a wealth of new data on the subject, which led to the discovery of new structures in the all-particle energy spectrum and the confirmation of knee-like features in the spectra of individual mass groups, as well as the observation of an unexpected ankle-like structure at around 100 PeV in the flux of the light component of cosmic rays. In this contribution, early findings with the KASCADE-Grande experiment will be reviewed and then a short update on the analyses currently performed with the data of the observatory will be presented.
Violation of the Appelquist-Carazzone decoupling in a nonsupersymmetric grand unified theory

International Nuclear Information System (INIS)

Chankowski, Piotr H.; Wagner, Jakub

2008-01-01

We point out that in nonsupersymmetric grand unified theories, in which the SU(5) gauge symmetry is broken down to the standard model gauge group by a 24 Higgs multiplet the Appelquist-Carazzone decoupling is violated. This is because the SU(2) L Higgs triplet contained in the 24 acquires a dimension-full coupling to the SU(2) L Higgs doublets which is proportional to the grand unified symmetry breaking vacuum expectation value. As a result, at one-loop heavy gauge and Higgs fields contribution to tadpoles generates a vacuum expectation value of the triplet which is not suppressed for V→∞ and violates the custodial symmetry
Construction of calibration pads facility, Walker Field, Grand Junction, Colorado

International Nuclear Information System (INIS)

Ward, D.L.

1978-08-01

A gamma-ray spectrometer facility was completed at Walker Field Airport, Grand Junction, Colorado, in November 1976. This report describes spectrometers and their calibration, the construction of the spectrometer facility, the radioelement concentrations, procedures for using the facilites, and environmental considerations
Grande Ronde Basin Fish Habitat Enhancement Project : 1998 Annual Report.

Energy Technology Data Exchange (ETDEWEB)

McGowan, Vance R.; Powell, Russ M.

1999-05-01

The primary goal of ''The Grande Ronde Basin Fish Habitat Improvement Project'' is to access, create, improve, protect, and restore reparian and instream habitat for anadromous salmonids, thereby maximizing opportunities for natural fish production within the basin.
Survey of hydrologic models and hydrologic data needs for tracking flow in the Rio Grande, north-central New Mexico, 2010

Science.gov (United States)

Tillery, Anne; Eggleston, Jack R.

2012-01-01

The six Middle Rio Grande Pueblos have prior and paramount rights to deliveries of water from the Rio Grande for their use. When the pueblos or the Bureau of Indian Affairs Designated Engineer identifies a need for additional flow on the Rio Grande, the Designated Engineer is tasked with deciding the timing and amount of releases of prior and paramount water from storage at El Vado Reservoir to meet the needs of the pueblos. Over the last three decades, numerous models have been developed by Federal, State, and local agencies in New Mexico to simulate, understand, and (or) manage flows in the Middle Rio Grande upstream from Elephant Butte Reservoir. In 2008, the Coalition of Six Middle Rio Grande Basin Pueblos entered into a cooperative agreement with the U.S. Geological Survey to conduct a comprehensive survey of these hydrologic models and their capacity to quantify and track various components of flow. The survey of hydrologic models provided in this report will help water-resource managers at the pueblos, as well as the Designated Engineer, make informed water-resource-management decisions that affect the prior and paramount water use. Analysis of 4 publicly available surface-water models and 13 publicly available groundwater models shows that, although elements from many models can be helpful in tracking flow in the Rio Grande, numerous data gaps and modeling needs indicate that accurate, consistent, and timely tracking of flow on the Rio Grande could be improved. Deficient or poorly constrained hydrologic variables are sources of uncertainty in hydrologic models that can be reduced with the acquisition of more refined data. Data gaps need to be filled to allow hydrologic models to be run on a real-time basis and thus ensure predictable water deliveries to meet needs for irrigation, domestic, stock, and other water uses. Timeliness of flow-data reporting is necessary to facilitate real-time model simulation, but even daily data are sometimes difficult to

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

Science.gov (United States)

2011-06-01

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

International Nuclear Information System (INIS)

Gato, B.; Leon, J.; Quiros, M.

1984-01-01

We present a cosmologically acceptable grand unified model where the breaking of SU(5) proceeds through radiative corrections induced by supergravity soft-breaking terms. The breaking scale is determined by dimensional transmutation. The model is compatible with the radiative breaking of SU(2)sub(L)xU(1)sub(Y) which provides an experimentally accessible low energy particle spectrum and small top quark mass. (orig.)
THE RISE AND FALL OF OPEN SOLAR FLUX DURING THE CURRENT GRAND SOLAR MAXIMUM

International Nuclear Information System (INIS)

Lockwood, M.; Rouillard, A. P.; Finch, I. D.

2009-01-01

We use geomagnetic activity data to study the rise and fall over the past century of the solar wind flow speed V SW , the interplanetary magnetic field strength B, and the open solar flux F S . Our estimates include allowance for the kinematic effect of longitudinal structure in the solar wind flow speed. As well as solar cycle variations, all three parameters show a long-term rise during the first half of the 20th century followed by peaks around 1955 and 1986 and then a recent decline. Cosmogenic isotope data reveal that this constitutes a grand maximum of solar activity which began in 1920, using the definition that such grand maxima are when 25-year averages of the heliospheric modulation potential exceeds 600 MV. Extrapolating the linear declines seen in all three parameters since 1985, yields predictions that the grand maximum will end in the years 2013, 2014, or 2027 using V SW , F S , or B, respectively. These estimates are consistent with predictions based on the probability distribution of the durations of past grand solar maxima seen in cosmogenic isotope data. The data contradict any suggestions of a floor to the open solar flux: we show that the solar minimum open solar flux, kinematically corrected to allow for the excess flux effect, has halved over the past two solar cycles.
Aprovechamiento de Salto Grande Argentina – Uruguay

Directory of Open Access Journals (Sweden)

Bongiovanni, M.

1979-12-01

Full Text Available The power harnessing of Salto Grande will be the first common project carried out by two South American Countries and this will foster greater integration of both countries. The project involves the following: — One 39 m-high dam — Two hydroelectric power plants — One international bridge — One shipping canal The benefits to be obtained from the project include: increase and improvement of the waterway network; increase of electricity production; railways and highway tie-ups between both countries; industrial development; increased availability of irrigation water; new tourist resorts; increase of fishing resources.

El aprovechamiento hidroeléctrico de Salto Grande será el primer aprovechamiento común a dos países sudamericanos, lo que permitirá una mayor integración entre ellos. Consta de las siguientes obras: _ una presa de 39 m de altura; _ dos centrales hidroeléctricas; _ un puente internacional; _ un canal de navegación, etc. Entre los beneficios que se obtendrán destacan: aumento y mejora de la red de navegación; aumento de la producción eléctrica; enlace de las vías de ferrocarril y carreteras entre los dos países; desarrollo industrial; aumento de la disponibilidad de agua de riego; creación de zonas de turismo, e incremento de la riqueza piscícola.
Towards a Grand Unified Theory of sports performance.

Science.gov (United States)

Glazier, Paul S

2017-12-01

Sports performance is generally considered to be governed by a range of interacting physiological, biomechanical, and psychological variables, amongst others. Despite sports performance being multi-factorial, however, the majority of performance-oriented sports science research has predominantly been monodisciplinary in nature, presumably due, at least in part, to the lack of a unifying theoretical framework required to integrate the various subdisciplines of sports science. In this target article, I propose a Grand Unified Theory (GUT) of sports performance-and, by elaboration, sports science-based around the constraints framework introduced originally by Newell (1986). A central tenet of this GUT is that, at both the intra- and inter-individual levels of analysis, patterns of coordination and control, which directly determine the performance outcome, emerge from the confluence of interacting organismic, environmental, and task constraints via the formation and self-organisation of coordinative structures. It is suggested that this GUT could be used to: foster interdisciplinary research collaborations; break down the silos that have developed in sports science and restore greater disciplinary balance to the field; promote a more holistic understanding of sports performance across all levels of analysis; increase explanatory power of applied research work; provide stronger rationale for data collection and variable selection; and direct the development of integrated performance monitoring technologies. This GUT could also provide a scientifically rigorous basis for integrating the subdisciplines of sports science in applied sports science support programmes adopted by high-performance agencies and national governing bodies for various individual and team sports. Copyright © 2017 Elsevier B.V. All rights reserved.
Innovation in production organic rice systems in Rio Grande do Sul Inovação em sistemas de produção de arroz orgânico no Rio Grande do Sul

Directory of Open Access Journals (Sweden)

Vanessa Monks da Silveira

2013-03-01

Full Text Available The Rio Grande do Sul is the largest producer of rice. In the state, rice is conventionally produced in large areas with intensive use of machinery and inputs, which has been associated with environmental impacts. Innovation can help to change this reality. Some initiatives are being developed in recent years trying to adapt the conventional system the global trend of consumption concerned about the environment. An example is the production of organic rice. In this sense, has established itself as objective to identify the groups of organic production in the state of Rio Grande do Sul and the innovations associated with these groups. The research was characterized as qualitative. The current stage of research enabled us to identify the group of producers associated with the Center for Environmental Education and Rice Agroecological Management Group, coordinated the Cooperative Central Settlements of Rio Grande do Sul. Have been identified other producers or groups. As for innovations, the results of the group of producers associated with the Center for Environmental Education and Monitoring are under review. Still it was found that new more sustainable alternatives are being adopted by producers and that this type of cultivation has increased in recent seasons.DOI: 10.5902/198346597782O Rio Grande do Sul é o maior produtor brasileiro de arroz. No estado, o arroz é convencionalmente produzido em grandes áreas, com o uso intensivo de máquinas e de insumos, o que tem sido associado a impactos ambientais. A inovação pode contribuir para a mudança dessa realidade. Algumas iniciativas estão sendo desenvolvidas nos últimos anos, buscando adaptar o sistema convencional à tendência mundial de consumo preocupado com o meio ambiente. Um exemplo é a produção de arroz orgânico. Nesse sentido, estabeleceu-se como objetivo identificar os grupos de produção orgânica no estado do Rio Grande do Sul e as inovações associadas a estes grupos. O
Grand Manner Aesthetics in Landscape: From Canvas to Celluloid

Science.gov (United States)

Auger, Emily E.

2009-01-01

The methods by which environmental issues are aestheticized in late-twentieth-century film is directly and historically related to those established for grand manner painters by Nicholas Poussin (1594-1665) and taught at the French academy from the seventeenth through the nineteenth centuries. That these fundamentals were part of the training of…
Society and Health in the Lower Rio Grande Valley.

Science.gov (United States)

Madsen, William

Shedding light on problems of mental health and illness that have baffled public health workers attempting to improve the health and welfare of Mexican Americans living in the lower Rio Grande Valley, this document reports the folk customs, social organization, medical practices, and beliefs of the Mexican American of this area. Chapters describe…
Heritage landscape structure analysis in surrounding environment of the Grand Canal Yangzhou section

Science.gov (United States)

Xu, Huan

2018-03-01

The Yangzhou section of the Grand Canal is selected for a case study in this paper. The ZY-3 satellite images of 2016 are adopted as the data source. RS and GIS are used to analyze the landscape classification of the surrounding landscape of the Grand Canal, and the classification results are precisely evaluated. Next, the overall features of the landscape pattern are analyzed. The results showed that the overall accuracy is 82.5% and the Kappa coefficient is 78.17% in the Yangzhou section. The producer’s accuracy of the water landscape is the highest, followed by that of the other landscape, farmland landscape, garden and forest landscape, architectural landscape. The user’s accuracy of different landscape types can be ranked in a descending order, as the water landscape, farmland landscape, road landscape, architectural landscape, other landscape, garden and forest landscape. The farmland landscape and the architectural landscape are the top advantageous landscape types of the heritage site. The research findings can provide basic data for landscape protection, management and sustainable development of the Grand Canal Yangzhou section.
A pedagogia da ilustração e os guarani-missioneiros no Rio Grande de São Pedro

Directory of Open Access Journals (Sweden)

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.
GRAND DESIGN MODEL PEMBINAAN PROFESIONAL GURU BERBASIS DETERMINAN KINERJA GURU

Directory of Open Access Journals (Sweden)

Bambang Budi Wiyono

2015-08-01

Full Text Available Abstract: A Grand Design Model of Teacher Professional Education Based on Teacher's Performace Determinant. One of the crucial factors that determines the quality of education is teachers. Thus, developing teachers' professionalism in carrying out their work is essential. This study aims at developing a grand design model of teacher professional education based on determinant factors of teachers' performance. It is a research and development study (R&D, in which data were collected through questionnaires, observations, and interviews, and analyzed using descriptive statistics, correlation analysis, and qualitative data analysis. The sample consists of 90 teachers and 28 headmasters selected using quota random sampling. The findings of the study show that the effective model of teacher professional education is the one conducted through five steps, namely, needs analysis, development of training and supervision programs, implementation of the programs, evaluation of the programs, and follow-ups of the programs. The development of the programs requires coordination among related institutions. The implementation needs to refer to the right principles, approach, and training techniques and be supported by good facilities, media, trainers, and training places. Keywords: training model, teachers' professionalism, teachers' performance Abstrak: Grand Design Model Pembinaan Profesional Guru Berbasis Determinan Kinerja Guru. Salah satu faktor yang sangat menentukan mutu pendidikan adalah guru. Untuk itu diperlukan peningkatan profesionalisme guru dalam melaksanakan tugas. Penelitian ini bertujuan mengembangkan grand design model pembinaan profesional guru yang efektif berbasis faktor-faktor determinan kinerja guru. Penelitian menggunakan desain penelitian pengembangan. Sampel diambil sebesar 90 guru dan 28 kepala sekolah dengan quota random sampling. Data dikumpulan data kuesioner, observasi, dan wawancara. Hasil pengumpulan data dianalisis
Cyber Resilience in de Bestuurskamer : The Grand Conference in Amsterdam

NARCIS (Netherlands)

Klaver, M.H.A.

2013-01-01

Op 16 oktober 2012 vond in Amsterdam The Grand Conference plaats. Deze conferentie werd georganiseerd door het Centre for the Protection of National lnfrastructure (CPNI.NL) in nauwe samenwerking met de Europese Commissie, de Europese Networkand Information Security Agency (ENISA), het Amerikaanse
Esclusas de peces en la represa de Salto Grande. Consideraciones acerca de su funcionamiento

OpenAIRE

Delfino, R.; Baigún, C.R.M.; Quirós, R.

1986-01-01

Fishlocks at Salto Grande Reservoir. Considerations about its functioning. The Salto Grande dam, has in its structure two Borland type fishlocks. The fish passage efficiency is low, and it is limited by the original system design, the management of the dam and the Uruguay river hidrology. Thus, in the 1984-1986 period, on annual average, the fishlocks were out of service 53 o/o of the time, while in the two periods when higher observed fish accumulation occur, march-april and september-octobe...
Is it possible to give scientific solutions to Grand Challenges? On the idea of grand challenges for life science research.

Science.gov (United States)

Efstathiou, Sophia

2016-04-01

This paper argues that challenges that are grand in scope such as "lifelong health and wellbeing", "climate action", or "food security" cannot be addressed through scientific research only. Indeed scientific research could inhibit addressing such challenges if scientific analysis constrains the multiple possible understandings of these challenges into already available scientific categories and concepts without translating between these and everyday concerns. This argument builds on work in philosophy of science and race to postulate a process through which non-scientific notions become part of science. My aim is to make this process available to scrutiny: what I call founding everyday ideas in science is both culturally and epistemologically conditioned. Founding transforms a common idea into one or more scientifically relevant ones, which can be articulated into descriptively thicker and evaluatively deflated terms and enable operationalisation and measurement. The risk of founding however is that it can invisibilise or exclude from realms of scientific scrutiny interpretations that are deemed irrelevant, uninteresting or nonsensical in the domain in question-but which may remain salient for addressing grand-in-scope challenges. The paper considers concepts of "wellbeing" in development economics versus in gerontology to illustrate this process. Copyright © 2015 Elsevier Ltd. All rights reserved.
La Grande: volver a empezar

Directory of Open Access Journals (Sweden)

Julio Premat

2011-07-01

Full Text Available Este texto, borrador de un trabajo más amplio, pretende despejar algunas pistas de lectura de La grande, en tanto que paradójico final de la producción de Saer. Digo “paradójico” porque puede tomársela como una novela de comienzo o de origen : de un volver a empezar, en todos los sentidos del término. En esa perspectiva podrían estudiarse algunos núcleos temáticos (como el retorno o el recuerdo de cara a la construcción del texto, a la relación planteada con la tradición y a la singular historia de su escritura (y al material genético que rodea y completa esta novela a la vez inacabada y póstuma. En esta intervención, la idea es la de comentar tres textos, escenas o frases del texto, y a partir de allí esbozar pistas para un estudio que está en ciernes.Première ébauche d’un travail de plus d’ampleur, ce texte vise à éclairer quelques pistes de lecture de La grande, en tant que fin paradoxale de la production de Saer. Je dis « paradoxale » parce que l’on peut considérer cette œuvre comme un roman des commencements ou des origines : comme un retour aux débuts, dans tous les sens du terme. Dans cette perspective, plusieurs nœuds thématiques (comme le retour ou le souvenir pourraient être étudiés en relation à la construction du texte, à la relation qui s’établit avec la tradition et à la singulière histoire de son écriture (et au matériau génétique qui entoure et complète ce roman, à la fois inachevé et posthume. Il sera question ici de commenter trois textes, scènes ou phrases du texte, et d’ébaucher à partir de là quelques pistes pour une étude à l’état naissant.The objective of this text, a draft for a broader work, is to outline some reading clues for La grande, inasmuch as it constitutes a paradoxical ending of Saer’s production. I say “paradoxical” because we can consider this work a novel of beginnings or of origins: a return to the beginning, in every meaning of the
Grand challenges in technology enhanced learning outcomes of the 3rd Alpine Rendez-Vous

CERN Document Server

Fischer, Frank; Sutherland, Rosamund; Zirn, Lena

2014-01-01

This book presents a key piece of the vision and strategy developed in STELLAR. It sets out a new mid-term agenda by defining Grand Challenges for research and development in technology-enhanced learning. Other than mere technology prizes, STELLAR Grand Challenges deal with problems at the interface of social and technical sciences. They pose problems that can be solved only in interdisciplinary collaboration. The descriptions of the Grand Challenge Problems were sent out to a number of stakeholders from industry, academia, and policy-making who responded with insightful, creative and critical comments bringing in their specific perspectives. This book will inspire everyone interested in TEL and its neighboring disciplines in their future projects. All of the listed problems, first hints with respect to the approach, measurable success indicators and funding sources are outlined. The challenges focus on what noted experts regard as important upcoming, pending, and innovative fields of research, the solution o...
76 FR 15936 - Designation for the Owensboro, KY; Bloomington, IL; Iowa Falls, IA; Casa Grande, AZ; Fargo, ND...

Science.gov (United States)

2011-03-22

... DEPARTMENT OF AGRICULTURE Grain Inspection, Packers and Stockyards Administration Designation for the Owensboro, KY; Bloomington, IL; Iowa Falls, IA; Casa Grande, AZ; Fargo, ND; Grand Forks, ND; and Plainview, TX Areas AGENCY: Grain Inspection, Packers and Stockyards Administration, USDA. ACTION: Notice...
2017 NOAA/OCM Unmanned Aerial System Lidar DEM: Grand Bay NERR

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Quantum Spatial (QSI) and PrecisionHawk (PH) collected lidar for test sites within the Grand Bay National Estuarine Research Reserve (NERR) using an unmanned aerial...
Grand Seasonal SST images of the Stellwagen Bank National Marine Sanctuary

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Grand monthly mean Sea Surface Temperature http://podaac.jpl.nasa.gov/ Naming Convention: XXXX_SSSYYYY1YYYY2_GAVGSST.tif XXXX=location (Stell) SSS= season...
Saturn's Magnetic Field from the Cassini Grand Finale orbits

Science.gov (United States)

Dougherty, M. K.; Cao, H.; Khurana, K. K.; Hunt, G. J.; Provan, G.; Kellock, S.; Burton, M. E.; Burk, T. A.

2017-12-01

The fundamental aims of the Cassini magnetometer investigation during the Cassini Grand Finale orbits were determination of Saturn's internal planetary magnetic field and the rotation rate of the deep interior. The unique geometry of the orbits provided an unprecedented opportunity to measure the intrinsic magnetic field at close distances never before encountered. The surprising close alignment of Saturn's magnetic axis with its spin axis, known about since the days of Pioneer 11, has been a focus of the team's analysis since Cassini Saturn Orbit Insertion. However, the varying northern and southern magnetospheric planetary period oscillations, which fill the magnetosphere, has been a factor in masking the field signals from the interior. Here we describe an overview of the magnetometer results from the Grand Finale orbits, including confirmation of the extreme axisymmetric nature of the planetary magnetic field, implications for knowledge of the rotation rate and the behaviour of external magnetic fields (arising from the ring current, field aligned currents both at high and low latitudes and the modulating effect of the planetary period oscillations).

Histoplasmose pulmonar aguda no Rio Grande do Sul Acute pulmonary histoplasmosis in the State of Rio Grande do Sul, Brazil

Directory of Open Access Journals (Sweden)

Gisela Unis

2005-02-01

Full Text Available INTRODUÇÃO: A histoplasmose pulmonar aguda depende da inalação de uma grande quantidade de propágulos fúngicos por um paciente hígido. O tempo de exposição determina a gravidade da doença. Uma epidemia é influenciada por fatores que afetam o crescimento e a transmissão do Histoplasma capsulatum var. capsulatum na natureza. OBJETIVO: Identificar os aspectos epidemiológicos e clínico-laboratoriais dos pacientes com histoplasmose pulmonar aguda no Rio Grande do Sul e compará-los com as microepidemias relatadas no Brasil. MÉTODO: Foram revisados 212 prontuários clínicos de pacientes com histoplasmose dos arquivos do Laboratório de Micologia do Complexo Hospitalar Santa Casa de Porto Alegre (RS num período de 25 anos (1977-2002. Foram identificados e incluídos no estudo os casos de histoplasmose pulmonar aguda com cultivo positivo e/ou achado histopatológico compatível. As microepidemias foram diagnosticadas com a comprovação de um caso ou evidência soromicológica com história clínica compatível. Foram revisadas as microepidemias publicadas no Brasil. RESULTADOS: Dezoito de um total de 212 pacientes (8,5% foram incluídos no trabalho. A idade variou de 8 a 63 anos (média de 35,4; mediana de 34,5, e 67% eram do sexo masculino. A história epidemiológica foi sugestiva em 11 pacientes (61%. O tipo primário de histoplasmose pulmonar aguda foi o mais freqüente (17; 95%. Houve predomínio de casos isolados. CONCLUSÃO: O reconhecimento de casos isolados e a presença de microepidemias demonstram a abundância do H. capsulatum no solo, e juntamente com a ocorrência de todas as formas da doença, confirmam o Rio Grande do Sul como hiperendêmico para histoplasmose.BACKGROUND: Acute pulmonary histoplasmosis is a respiratory infection occurring when an otherwise healthy individual inhales a large quantity of fungal propagules. Length of exposure determines disease severity. An epidemic is influenced by factors affecting the
X-ray diffraction and Raman spectroscopy study of white decorations on tricolored ceramics from Northwestern Argentina

Science.gov (United States)

Freire, E.; Acevedo, V.; Halac, E. B.; Polla, G.; López, M.; Reinoso, M.

2016-03-01

White virgules, commas, and dot designs on tricolored ceramics are sporadically found in different archaeological sites located in Northwestern Argentina area, as Puna and Quebrada de Humahuaca. This decorating style has been reported in several articles, but few previous archaeometric studies have been carried out on the pigment composition. Fragments from Puna and Quebrada archaeological sites, belonging to Regional Development Period (900-1430 AD), were analyzed by X-ray diffraction and Raman spectroscopy in order to characterize the pigments employed. Red and black pigments are based on iron and manganese oxides, as it has been extensively reported for the NW Argentina area. White pigments from white virgules, comma, and dot designs have shown different composition. Hydroxyapatite was found in samples from Doncellas site (North Puna region), and calcium and calcium-magnesium containing compounds, as vaterite and dolomite, along with titanium containing compounds were detected on samples from Abralaite (Central Puna region) and Gasoducto (Quebrada de Humahuaca region). It has been concluded that pigment composition is not characteristic of a unique region.
X-ray diffraction and Raman spectroscopy study of white decorations on tricolored ceramics from Northwestern Argentina.

Science.gov (United States)

Freire, E; Acevedo, V; Halac, E B; Polla, G; López, M; Reinoso, M

2016-03-15

White virgules, commas, and dot designs on tricolored ceramics are sporadically found in different archaeological sites located in Northwestern Argentina area, as Puna and Quebrada de Humahuaca. This decorating style has been reported in several articles, but few previous archaeometric studies have been carried out on the pigment composition. Fragments from Puna and Quebrada archaeological sites, belonging to Regional Development Period (900-1430 AD), were analyzed by X-ray diffraction and Raman spectroscopy in order to characterize the pigments employed. Red and black pigments are based on iron and manganese oxides, as it has been extensively reported for the NW Argentina area. White pigments from white virgules, comma, and dot designs have shown different composition. Hydroxyapatite was found in samples from Doncellas site (North Puna region), and calcium and calcium-magnesium containing compounds, as vaterite and dolomite, along with titanium containing compounds were detected on samples from Abralaite (Central Puna region) and Gasoducto (Quebrada de Humahuaca region). It has been concluded that pigment composition is not characteristic of a unique region. Copyright © 2015 Elsevier B.V. All rights reserved.
L'espace mondial des grandes manifestations sportives internationales

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Daniel MATHIEU

1989-06-01

Full Text Available La carte des grandes manifestations sportives mondiales montre une forte concentration des épreuves dans un petit nombre de pays développés, en particulier l'Europe occidentale. L'examen des nations concernées par les tournois majeurs du tennis et par le cyclisme professionnel soulignent, avec les nuances propres à chacun des sports, l'étroitesse des espaces intéressés.
Assessment of landslide hazards resulting from the February 13, 2001, El Salvador earthquake; a report to the government of El Salvador and the U. S. Agency for International Development

Science.gov (United States)

Baum, Rex L.; Crone, Anthony J.; Escobar, Demetreo; Harp, Edwin L.; Major, Jon J.; Martinez, Mauricio; Pullinger, Carlos; Smith, Mark E.

2001-01-01

On February 13, 2001, a magnitude 6.5 earthquake occurred about 40 km eastsoutheast of the capital city of San Salvador in central El Salvador and triggered thousands of landslides in the area east of Lago de Ilopango. The landslides are concentrated in a 2,500-km2 area and are particularly abundant in areas underlain by thick deposits of poorly consolidated, late Pleistocene and Holocene Tierra Blanca rhyolitic tephras that were erupted from Ilopango caldera. Drainages in the tephra deposits are deeply incised, and steep valley walls failed during the strong shaking. Many drainages are clogged with landslide debris that locally buries the adjacent valley floor. The fine grain-size of the tephra facilitates its easy mobilization by rainfall runoff. The potential for remobilizing the landslide debris as debris flows and in floods is significant as this sediment is transported through the drainage systems during the upcoming rainy season. In addition to thousands of shallow failures, two very large landslides occurred that blocked the Rio El Desague and the Rio Jiboa. The Rio El Desague landslide has an estimated volume of 1.5 million m3, and the Rio Jiboa landslide has an estimated volume of 12 million m3. Field studies indicate that catastrophic draining of the Rio El Desague landslide-dammed lake would pose a minimal flooding hazard, whereas catastrophic draining of the Rio Jiboa lake would pose a serious hazard and warrants immediate action. Construction of a spillway across part of the dam could moderate the impact of catastrophic lake draining and the associated flood. Two major slope failures on the northern side of Volcan San Vicente occurred in the upper reaches of Quebrada Del Muerto and the Quebrada El Blanco. The landslide debris in the Quebrada Del Muerto consists dominantly of blocks of well-lithified andesite, whereas the debris in the Quebrada El Blanco consists of poorly consolidated pyroclastic sediment. The large blocks of lithified rock in
Nuove prospettive storiografiche sulla Grande guerra: violenze, traumi, esperienze

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Marco Bizzocchi

2014-03-01

Full Text Available Il testo propone, attraverso l’analisi delle recensioni pubblicate sulla rivista internazionale “First World War Studies”, una rassegna su alcuni recenti studi storici sulla Prima guerra mondiale. Dopo la svolta degli anni Settanta-Ottanta, la storiografia sta continuando ad approfondire in particolare il tema dei risvolti sociali e culturali della Grande guerra.
78 FR 25407 - Safety Zones; National Cherry Festival Air Show and Fireworks Display; West Grand Traverse Bay...

Science.gov (United States)

2013-05-01

...-AA00 Safety Zones; National Cherry Festival Air Show and Fireworks Display; West Grand Traverse Bay... National Cherry Festival in Traverse City, MI will host an air show over the West Arm of Grand Traverse Bay. At the conclusion of the National Cherry Festival on July 6, 2013, fireworks will be launched in...
Low energy positron interactions with uracil—Total scattering, positronium formation, and differential elastic scattering cross sections

Energy Technology Data Exchange (ETDEWEB)

Anderson, E. K.; Boadle, R. A.; Machacek, J. R.; Makochekanwa, C.; Sullivan, J. P. [ARC Centre for Antimatter-Matter Studies, Research School of Physics and Engineering, The Australian National University, Canberra 0200 (Australia); Chiari, L. [ARC Centre for Antimatter-Matter Studies, Flinders University, GPO Box 2100, Adelaide, 5001 SA (Australia); Buckman, S. J., E-mail: Stephen.buckman@anu.edu.au [ARC Centre for Antimatter-Matter Studies, Research School of Physics and Engineering, The Australian National University, Canberra 0200 (Australia); Institute of Mathematical Sciences, University of Malaya, Kuala Lumpur (Malaysia); Brunger, M. J. [ARC Centre for Antimatter-Matter Studies, Flinders University, GPO Box 2100, Adelaide, 5001 SA (Australia); Institute of Mathematical Sciences, University of Malaya, Kuala Lumpur (Malaysia); Garcia, G. [Instituto de Fısica Fundamental, Consejo Superior de Investigationes Cientıficas (CSIC), Serrano 113-bis, E-28006 Madrid (Spain); Blanco, F. [Departamento de Fısica Atomica, Molecular y Nuclear, Universidad Complutense de Madrid, E-28040 Madrid (Spain); Ingolfsson, O. [Department of Chemistry, Science Institute, University of Iceland, Reykjavík 107 (Iceland)

2014-07-21

Measurements of the grand total and total positronium formation cross sections for positron scattering from uracil have been performed for energies between 1 and 180 eV, using a trap-based beam apparatus. Angular, quasi-elastic differential cross section measurements at 1, 3, 5, 10, and 20 eV are also presented and discussed. These measurements are compared to existing experimental results and theoretical calculations, including our own calculations using a variant of the independent atom approach.
Morfologia e classificação taxonômica de neossolos e saprolitos derivados de rochas vulcânicas da Formação Serra Geral no Rio Grande no Sul Morphology and taxonomy classification of neossolos and saprolites derived from volcanic rock of the Serra Geral formation in Rio Grande do Sul, Brazil

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Fabrício de Araújo Pedron

2009-02-01

low potential for agricultural use. Consequently the morphological description of Neossolos in the field is also hampered, particularly in terms of contacts between soil, saprolite and rock, and their classification in the Brazilian Soil Classification System. The purpose of this study was: to define morphologically the contact between soil, saprolite and rock in Neossolos; generate data of the saprolite layer and test an inclusion in the suborder Neossolos Litólicos and Neossolos Regolíticos; and evaluate the diagnostic attributes and classes available in the Brazilian Soil Classification System for the of Neossolos Litólicos and Regolíticos derived from volcanic rocks of the Serra Geral formation in Rio Grande do Sul, State, Brazil. Five profiles of litho-climosequence were analyzed. The contacts were characterized based on the straight shovel excavation test associated to analyses of saprolite fracture and weathering classes. The contacts related to the presence of saprolite layers identified in the profile are not taken into consideration in the Brazilian Soil Classification System. Diagnostic attributes for the classification of Neossolos Regolíticos were proposed as well as a change of the term from "Regolítico" to "Saprolítico". New classes were also suggested for the third categorical level, based on information such as soil position and saprolite contact, excavation resistance and cracking level of the material. The proposed diagnostic attributes and classes allowed a more adequate classification of Neossolos derived from volcanic rocks in the State of Rio Grande do Sul.
Management as a science-based profession: a grand societal challenge

NARCIS (Netherlands)

Romme, A.G.L.

2017-01-01

The purpose of this paper is to explore how the quest for management as a science-based profession, conceived as a grand societal challenge, can be revitalized. A reflective approach is adopted by questioning some of the key assumptions made by management scholars, especially those that undermine
Trace elements and heavy metals in the Grand Bay National Estuarine Reserve in the northern Gulf of Mexico

Science.gov (United States)

The Grand Bay National Estuarine Research Reserve has the highest biotic diversity of habitats and offer a reserve of food resources and commercially significant species. Rapid human civilization has led to accumulation of heavy metals and trace elements in estuaries. The Grand Bay National Estuarin...
SHRIMP U-Pb zircon dating of Pedras Grandes Suite, southern Santa Catarina State, Brazil

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Andréa R. Jelinek

2005-03-01

Full Text Available Two major magmatic pulses of the granitic Florianópolis Batholith in Santa Catarina State, southern Brazil, occurred between 613±5Ma and 595±5 Ma, during the Neoproterozoic Brasiliano Cycle. These ages were obtained by U-Pb isotopic determinations with the sensitive high mass-resolution ion microprobe on igneous zircons from Pedras Grandes Suite in Santa Catarina State. Euhedral zircons remained unaltered close to a fluorite vein deposited at 180?C or more. These ages suggest a northern limit for the Pedras Grandes Suite, explaining the spatial relationship between the fluorite veins and the source rock.Dois dos principais pulsos da atividade granítica no Batólito Florianópolis em Santa Catarina ocorreram entre 613 ±5 Ma e 595 ±5 Ma, durante o Neoproterozóico do Ciclo Brasiliano. Estas idades foram obtidas a partir dedeterminações isotópicas U-Pb em cristais de zircão da Suite Pedras Grandes por "Sensitive high-resolution íon microprobe" - SHRIMP II. Os cristais de zircão permaneceram inalterados mesmo mediante condições hidrotermais com temperaturas iguais e, até mesmo, superiores a 180ºC. Estas idades sugerem a delimitação norte do Maciço Pedras Grandes, explicando a relação espacial existente entre os filões de fluorita e a rocha fonte destas mineralizações.
Groundwater Challenges of the Lower Rio Grande: A Case Study of Legal Issues in Texas and New Mexico

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Elizabeth Wheat

2015-03-01

Full Text Available In 1938, Texas, New Mexico, and Colorado signed the Rio Grande Compact, establishing terms of apportionment for some of the water from the Rio Grande for the three states. Following congressional approval in 1939, this compact governs water allocation in a region with a variable climate and frequent drought conditions and established the Rio Grande Compact Commission, comprised of a commissioner from each state and one from the federal government, to enforce the compact. With an increasing population and declining surface water supply, the Compact has been tested among the parties and within the states themselves. In a case currently before the U.S. Supreme Court, Texas v. New Mexico and Colorado (2013, Texas claims New Mexico is violating the Compact and Rio Grande Project Act by using water in excess of its apportionment through its allowance of diversions of surface and groundwater. The issue is further compounded by disputes within Texas over separate legal regimes for groundwater and surface water. Combined with growing scarcity issues, the allocation of water in the Lower Rio Grande presents a timely natural resource challenge. This review explores legal issues involved in the case as well as growing challenges of population growth, agricultural development needs, and water shortages.
The Tragedy of Migrants. Gabriele Del Grande's Reportage

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Luigi Franchi

2017-11-01

Full Text Available L’espressione "Tragedia dei migranti" che ciclicamente compare nei notiziari televisivi, seppur evocando la categoria del tragico, non suscita nessuno dei sentimenti che caratterizzano questa forma di spettacolo. Lo spettatore infatti è portato a considerare i naufragi nel Mediterraneo il frutto di un destino ineluttabile, senza quindi intravedere alcuna possibilità da parte sua di intervenire sulla realtà. Mamadou va a morire e Il mare di mezzo di Gabriele Del Grande dimostrano come i naufragi dei migranti nel Mediterraneo non siano parte del disegno divino di un deus absconditus, ma una delle drammatiche conseguenze della crisi economica della contemporaneità. Esibendo i meccanismi sottesi al fenomeno della migrazione, l’autore mostra i presupposti razionali sui quali questa si fonda e suggerisce come i suoi esiti drammatici possano essere contrastati a livello individuale e collettivo. Questo articolo si propone di dotare di un senso più pieno l’espressione "tragedia dei migranti": per fare ciò si rintraccerà all’interno dei reportage la riemersione di alcuni topoi della tragedia greca. Verrà inoltre individuata tra gli individui incontrati da Del Grande nei suoi viaggi e i personaggi della tragedia greca una serie di analogie in grado di restituire alla condizione del migrante una reale potenzialità tragica.
Multivariable extrapolation of grand canonical free energy landscapes

Science.gov (United States)

Mahynski, Nathan A.; Errington, Jeffrey R.; Shen, Vincent K.

2017-12-01

We derive an approach for extrapolating the free energy landscape of multicomponent systems in the grand canonical ensemble, obtained from flat-histogram Monte Carlo simulations, from one set of temperature and chemical potentials to another. This is accomplished by expanding the landscape in a Taylor series at each value of the order parameter which defines its macrostate phase space. The coefficients in each Taylor polynomial are known exactly from fluctuation formulas, which may be computed by measuring the appropriate moments of extensive variables that fluctuate in this ensemble. Here we derive the expressions necessary to define these coefficients up to arbitrary order. In principle, this enables a single flat-histogram simulation to provide complete thermodynamic information over a broad range of temperatures and chemical potentials. Using this, we also show how to combine a small number of simulations, each performed at different conditions, in a thermodynamically consistent fashion to accurately compute properties at arbitrary temperatures and chemical potentials. This method may significantly increase the computational efficiency of biased grand canonical Monte Carlo simulations, especially for multicomponent mixtures. Although approximate, this approach is amenable to high-throughput and data-intensive investigations where it is preferable to have a large quantity of reasonably accurate simulation data, rather than a smaller amount with a higher accuracy.
Urban Experiences: Migrants and Ways of Living and Working in the Outskirts of Campina Grande in the 1960s

OpenAIRE

HILMARIA XAVIER DA SILVA

2012-01-01

From the late 1940s and early 1950s, Campina Grande undergoes a significant urbanization and expansion, favored by economic growth. We observed that rural workers migrated from rural to urban area in Campina Grande in so far as the farming activity was becoming unviable due to droughts and they could see, in the urban center of Campina, other possibilities of working and worthier life conditions. Our work attempts to reflect on how some popular migrated to Campina Grande in the late 1950s and...
Supervision system for safety valves and operative metering station of the Yacuiba-Rio Grande Gas Pipeline; Sistema de supervisao para valvulas de seguranca e estacoes de medicao operativas do gasoducto Yacuiba-Rio Grande

Energy Technology Data Exchange (ETDEWEB)

Cabrera, Fernando; Marques, Ailton [Transierra S.A., La Paz (Bolivia)

2005-07-01

One of the most critical points for the opportune intervention that compromises the operations of TRANSIERRA S.A., is the integrity of the facilities, the adjacent communities and the environment are the Shut Down Valves (SDV) of the GASYRG Gas pipeline. The GASYRG (Yacuiba Rio Grande Gas pipeline) with an extension of 432 Km and a Pipeline diameter of 32 inches presents 2 Receipt Stations, 1 Delivery Point and 11 Line Valves. The pipeline operation is made by satellite and SCADA applications; it is supervised and controlled on-line at the points of delivery and receipt; monitoring of the SDV's was left aside; because of this it was necessary to develop a Remote Supervision System. This system combines remote devices with the Control Philosophy of Report By-Exception, Low Orbit Satellite System, Internet application and Intranet. The mentioned information is sent in e-mail format to a Satellite Teleport located in London, England. The process information is sent via Internet to TRANSIERRA's SCADA Servers for its interpretation and display in the HMI of the GASYRG supervisory system. (author)
The Grand Convergence: Closing the Divide between Public Health Funding and Global Health Needs.

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Mary Moran

2016-03-01

Full Text Available The Global Health 2035 report notes that the "grand convergence"--closure of the infectious, maternal, and child mortality gap between rich and poor countries--is dependent on research and development (R&D of new drugs, vaccines, diagnostics, and other health tools. However, this convergence (and the R&D underpinning it will first require an even more fundamental convergence of the different worlds of public health and innovation, where a largely historical gap between global health experts and innovation experts is hindering achievement of the grand convergence in health.
Lie groups and grand unified theories

International Nuclear Information System (INIS)

Gubitoso, M.D.

1987-01-01

This work presents some concepts in group theory and Lie algebras and, at same time, shows a method to study and work with semisimple Lie groups, based on Dynkin diagrams. The aproach taken is not completely formal, but it presents the main points of the elaboration of the method, so its mathematical basis is designed with the purpose of making the reading not so cumbersome to those who are interested only in a general picture of the method and its usefulness. At the end it is shown a brief review of gauge theories and two grand-unification models based on SO(13) and E 7 gauge groups. (author) [pt
Local grand unification and string theory

International Nuclear Information System (INIS)

Nilles, Hans Peter; Vaudrevange, Patrick K.S.

2009-09-01

The low energy effective action of string theory depends strongly on the process of compactification and the localization of fields in extra dimensions. Explicit string constructions towards the minimal supersymmetric standard model (MSSM) reveal interesting results leading to the concept of local grand unification. Properties of the MSSM indicate that we might live at a special location close to an orbifold fixed point rather than a generic point in Calabi-Yau moduli space. We observe an enhancement of (discrete) symmetries that have various implications for the properties of the MSSM such as proton stability as well as solutions to the flavor problem, the m-problem and the strong CP-problem. (orig.)

Pitié pour les grandes villes !

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Jérôme Monnet

1997-02-01

Full Text Available Roger Caillois disait, en 1938, qu´il existe "une représentation de la grande ville, assez puissante sur les imaginations pour que jamais en pratique ne soit posée la question de son exactitude, créée de toute pièce par le livre, assez répandue néanmoins pour faire partie de l´atmosphère mentale collective et posséder par suite une certaine force de contrainte"(Le mythe et l´homme, p.156 [c´est lui qui souligne]. En 1996, la presse française a consacré dossiers et articles à "Habitat II...
Food and Wine Pairing in Burgundy: The Case of Grands Crus

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Benoît Lecat

2017-02-01

Full Text Available Burgundy is known both for its wines and its food products but they developed independently from each other. This paper examines the long march towards maximal wine quality which started before the beginning of the Christian era. In the Middle‐Ages, the Cistercian monks brought up the notion of terroir which eventually led to the AOC system (Protected Designation of origin in 1935. Burgundy is also blessed with good farming land. Furthermore, the production of quality vegetables, fruits and meat contributed to the birth of its regional cuisine. However, it was not until the beginning of the 20th century that Burgundy’s original gastronomy gained recognition. It should be noted that this process was rather laborious. The advent of tourism introduced French and foreign visitors to the region’s lifestyle. With UNESCO’s listing of the vineyards of Côte de Beaune and Côte de Nuits as part of the world’s heritage and the development of wine tourism, Burgundy intends, at long last, to capitalize on its assets. An inventory of wine and food pairing complements this paper. Finally, a brief description of the term terroir will introduce the key contribution of this paper: how and why Burgundy Grand Cru wines pair so well with foods. For each of the 33 Grands Crus, a review of the best wine–food matches will be discussed on the basis of the specificities of each Grand Cru wine.
Grand unification: status report

International Nuclear Information System (INIS)

Georgi, H.

1983-01-01

Grand unification is reviewed with regard to the flavor puzzle and the hierarchy puzzle. Progress in CP and the PQWWKDFS axion is reviewed. The neutrino mass and B-L research, the understanding and assimilation of the language of effective theories (which divide the momentum scale up into regions), with focus on the models, are surveyed. Various unified models are organized according to whether they address the hierarchy puzzle or the flavor puzzle. SU(5), SO(10), E6, and Higgs are considered simple and explicit models. Global symmetry addresses hierarchy puzzle, but the rules are unclear. In SO (18), with regard to hierarchy, perturbation theory breaks down. SO (14) fails for hierarchy because of GIM, b and t problems. Supersymmetry and technicolor with regard to flavor puzzle are questioned. The CP solution of ETC and Composite C models (addressing both flavor and hierarchy) is a minus. Composite A model has no evident virtues, and the basic idea of ETC model needs checking
Magnetic spectrometer Grand Raiden

International Nuclear Information System (INIS)

Fujiwara, M.; Akimune, H.; Daito, I.; Fujimura, H.; Fujita, Y.; Hatanaka, K.; Ikegami, H.; Katayama, I.; Nagayama, K.; Matsuoka, N.; Morinobu, S.; Noro, T.; Yoshimura, M.; Sakaguchi, H.; Sakemi, Y.; Tamii, A.; Yosoi, M.

1999-01-01

A high-resolution magnetic spectrometer called 'Grand Raiden' is operated at the RCNP ring cyclotron facility in Osaka for nuclear physics studies at intermediate energies. This magnetic spectrometer has excellent ion-optical properties. In the design of the spectrometer, the second-order dispersion matching condition has been taken into account, and almost all the aberration terms such as (x vertical bar θ 3 ), (x vertical bar θφ 2 ), (x vertical bar θ 2 δ) and (x vertical bar θδ 2 ) in a third-order matrix calculation are optimized. A large magnetic rigidity of the spectrometer (K = 1400 MeV) gives a great advantage to measure the charge-exchange ( 3 He, t) reactions at 450 MeV. The ability of the high-resolution measurement has been demonstrated. Various coincidence measurements are performed to study the nuclear structures of highly excited states through decay properties of nuclear levels following nuclear reactions at intermediate energies
História sem causa? A nova história cultural, a grande narrativa e o dilema pós-colonial History without cause? The new cultural History, the grand narrative and the postcolonial dilemma

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Barbara Weinstein

2003-01-01

Full Text Available Este artigo examina o declínio das grandes narrativas historiográficas norte-americanas, associado ao auge da nova história cultural. A influência da antropologia cultural, com destaque para Clifford Geertz, resultou no privilegiamento da micro-história e no eclipse dos processos de causação e explicação. Ao mesmo tempo, muitos historiadores pós-modernos continuam referendando, ainda que não explicitamente, narrativas eurocêntricas da transição à modernidade. Portanto, as críticas do eurocentrismo - o impulso para "provincializar a Europa" - vêm de duas tendências: a nova história mundial, cujos seguidores estão repensando as grandes narrativas, ainda que utilizem métodos históricos bastante tradicionais; e a teoria pós-colonial, com destaque para Dipesh Chakrabarty. Este autor, um crítico incisivo da historiografia eurocêntrica, não consegue oferecer alternativas justamente por rejeitar toda narrativa "historicista". Em contraste, o historiador da África, Steven Feierman, defende a necessidade de reconstruir grandes narrativas, que propiciem pontos de referência e permitam superar o dilema pós-colonial.This article examines the decline of grand narratives in the North American historiography with the rise of the new cultural history. The influence of cultural anthropology - especially the work of Clifford Geertz - has resulted in a preference for microhistory and the eclipse of causation and explanation. At the same time, many postmodern historians continue to refer (though not explicitly to a Eurocentric narrative of the transition to modernity. In response, criticism of Eurocentrism-the impulse to "provincialize Europe"-has come from two tendencies. One is the new world history, whose proponents are rethinking the grand narratives but with rather traditional methods. The other is postcolonial theory, exemplified by Dipesh Chakrabarty. This last author, although an incisive critic of Eurocentric historiography
On-site evaluation of the suitability of a wetted instream habitat in the Middle Rio Grande, New Mexico, for the Rio Grande silvery minnow (Hybognathus amarus)

Science.gov (United States)

2011-01-01

Two in-situ exposure studies were conducted with the federally-listed endangered Rio Grande silvery minnow (Hybognathus amarus). One-year-old adults were exposed in cages deployed at three sites in the Middle Rio Grande, N. Mex., for 4 days to assess survival and for 26 days to evaluate survival, growth, overall health, and whole-body elemental composition. The test sites were located on the Pueblo of Isleta in the (1) main channel of the Middle Rio Grande, (2) 240-Wasteway irrigation return drain, and (3) wetted instream habitat created below the outfall of the 240-Wasteway irrigation return drain. During the cage exposures, temperature, dissolved oxygen, pH, conductivity, and turbidity were monitored continuously (15-minute intervals) and common constituents, nutrients, carbons, metals, and pesticides were measured at discrete intervals. In both studies, there were statistical differences in several water-quality parameters among sites; and except for turbidity, these differences were small and were not considered to be biologically significant. The cages used in the 4-day exposure study were ineffective at preventing access to the fish by predators, and survival was highly variable (20 percent to 90 percent) across sites. In the 26-day chronic exposure study, weight and condition factor of caged-exposed fish at all sites were significantly lower than those at test initiation. After 26 days of exposure, there were no significant differences in survival, total length, weight, or condition factor of fish across sites, but absolute weight loss and relative reduction in condition factor were significantly greater in fish at the wetted instream habitat site compared to those at the Middle Rio Grande site. There were no statistical differences in health assessment indices, mesenteric fat indices, or prevalence of abnormalities in cage-exposed fish among sites. Cage-exposed fish had higher health assessment indices and prevalence of fin anomalies and a lower mesenteric
FROM GRAND VIZIERSHIP TO PRIME MINISTRY SADÂRET’TEN BAŞVEKÂLET’E SADRAZAMLIK

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İhsan SATIŞ

2011-09-01

Full Text Available The Grand Vizier, who had been responsible to the Sultan for the administration of the country, the security of the subjects, foreign policy and wars up to the 19th century, began to lose prominence as a result of the centrist reforms initiated by Mahmut II. The Sultan appointed the Grand Vizier’s as the Prime Minister and distributed his powers among ministries. The Grand Viziership was rapidly institutionalized in the process of adapting to Europe and its main function became determining the politics. However, Sultan Abdulmecit abolished the practice of prime ministry and appointed Koca Hüsrev Pasha as the Grand Vizier after the death of Mahmut II. In this article, the changes in the institution of Grand Viziership in the first half of the 19th century were investigated. 19. yüzyıla kadar, padişaha karşı ülke yönetiminden, tebaanın güvenliğinden, dış politikadan ve savaşlardan sorumlu olan sadrazam, II. Mahmut’un merkeziyetçi reformları neticesinde yetkileri azalmaya başlamıştır. II. Mahmut, sadrazama bütün vekillerin başı olmak üzere başvekil sanını vererek, yetkilerini nezaretler arasında dağıtmıştır. Avrupa’ya ayak uydurma sürecinde sadrazamlık hızla kurumlaşırken asıl işlevi de siyaseti belirlemek ve uygulamak olmuştur. Lakin II. Mahmut’un ölümünden sonra Sultan Abdülmecit, Koca Hüsrev Paşa’yı sadrazam tayiniyle başvekil unvanı kaldırılarak tekrar sadrazam tabiri kullanılmaya başlanmıştır. Bu makalede, 19. yüzyılın ilk yarısında sadrazamlık kurumundaki değişimler ele alınmıştır.
Advanced functions using VBA for the Yacuiba Rio Grande (GASYRG) gas pipeline; Funcoes avancadas usando VBA no gasoduto Yacuiba Rio Grande

Energy Technology Data Exchange (ETDEWEB)

Torres Vega, Raul [TRANSIERRA S.A., Santa Cruz (Bolivia)

2005-07-01

The Yacuiba - Rio Grande Gas Pipeline is remote operated from the Supervision and Control Center (CSC) located in the offices of Transierra S.A. in Santa Cruz de la Sierra, Bolivia. This operation is made by means of a SCADA system based on satellite communication, it starts off at Yacuiba and finishes in Rio Grande, where it deliveries the export gas to Brazil. An Advanced Functions application was developed at the Transierra's CSC, This application runs under Intellution's iFix (HMI of the SCADA) in a Windows platform. It gathers transportation data in real time and by means of a mathematical process and a steady state simulation it makes the following on line calculations: Line Pack, Leak Detection, Transport Efficiency, Pressure Estimate in intermediate points and gas real velocity in the pipeline. The application was developed using Visual BASIC for Applications (VBA) (included in Intellution's iFix) and by means of an interphase to a historical server (iHistorian, Intellution) it is possible to store the obtained results, this integration also allows for the creation of graphs and trends with a great flexibility and to activate alarm points. With a practically null investment, this application replaces high cost specialized packages that are accessories to simulation or SCADA applications. (author)
Requests and usage of epidural analgesia in grand-grand multiparous and similar-aged women with lesser parity: prospective observational study.

Science.gov (United States)

Ioscovich, Alexander; Fadeev, Angelika; Rivilis, Alina; Elstein, Deborah

2011-11-01

Epidural analgesia in older and multiparous women has been associated with risks. The aim of this study was to compare epidural analgesia use for labor/delivery in grand-grand multiparous women (GGMP; ≥10 births) relative to that in similar-aged women with lesser parity. This was a prospective observational study of advanced age gravida. All laboring women in a six-month period admitted to a tertiary Israeli center were included if they were advanced age (≥36 years old) with one to two previous births (Low parity; n=128) or four to five previous births (Medium parity; n=181), and all GGMP (any age; n=187). Primary outcome was comparison of requests for and use of epidural analgesia for labor/delivery. There were no significant differences across parity groups in percent of gravida requesting or receiving epidural analgesia (46.5-59.4%). Time from admission to epidural administration (range mean times: 168-187 min) and from advent of epidural to delivery (range mean times: 155-160 min) were comparable across parity groups. Use of other analgesia (5.8-8%) was not significantly different. Requests for and use of epidural analgesia was comparable in older gravida and was not correlated with parity. Mean times from presentation to epidural administration, mean cervical dilatation at epidural initiation, and mean time from performing of epidural to delivery were comparable across groups.
Le Panthéon du sport camerounais : grandes figures et succès marquants

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Mbolo Alicia

2016-01-01

Full Text Available Le Cameroun est une grande nation sportive africaine grâce à ses résultats et performances lors des grandes compétitions. Il justifie d'un leadership affirmé car ses ressortissants occupent des hautes fonctions exécutives dans des organismes sportifs internationaux. L'émergence des talents sportifs imprègne des faits, l'histoire olympique et sportive camerounaise. Tout le mérite ou l'opprobre ne leur est guère attribué, une victoire sportive étant générée par une équipe. 50 ans après, ils restent des modèles d'où la nécessité d'un sanctuaire, d'un Musée Olympique. Notre réflexion portera sur le Panthéon du sport camerounais : les grandes figures et les résultats marquantsdans sa quintessence et son essence. Nous relèverons leurs actions remarquables dans l'évolution du sport au Cameroun, tout autant que l'examen des concepts, la désignation des grandes figures, le rappel de leurs palmarès, les résultats marquants, leur impact sur la société, les stratégies valorisantes du Panthéon du sport camerounais en constitueront le corpus.
77 FR 15600 - Special Local Regulation; Emerald Coast Super Boat Grand Prix; Saint Andrew Bay; Panama City, FL

Science.gov (United States)

2012-03-16

...-AA08 Special Local Regulation; Emerald Coast Super Boat Grand Prix; Saint Andrew Bay; Panama City, FL... navigable waters during the Emerald Coast Super Boat Grand Prix high speed boat races. Entry into... needed to safeguard persons and vessels from safety hazards associated with the Emerald Coast Super Boat...
Physical-chemical characterization of sediments from Lapa Grande de Taquaracu archaeological site, MG

International Nuclear Information System (INIS)

Tudela, Diego Renan Giclioti

2013-01-01

In this project the elemental concentrations of Ce, Co, Cr, Cs, Eu, Fe, Hf, K, La, Lu, Na, Nd, Rb, Sc, Sm, Ta, Tb, Th, U, Yb and Zn were determined by instrumental neutron activation analysis (INAA) in 60 sediment samples from Lapa Grande de Taquaracu archaeological site, located in MG State. The samples were provided by Dr. Astolfo Gomes de Mello Araujo from the Museum of Archaeology and Ethnology, University of Sao Paulo. This site is a palaeoindian rockshelter located near Lagoa Santa karst with characteristics which could be used to test karst abandonment model during the Middle Holocene related to dry conditions. The results of elemental concentrations, interpreted by multivariate statistical analysis, showed the formation of three different compositional and well-defined groups. The variable selection study by means of Procrusts analysis was also carried out. X-ray diffraction (XRD) analyses were also performed in 8 samples to study their mineralogical composition and they showed that there are distinctions in crystalline structure between the samples of the three elemental compositional groups, being quartz, calcite, dolomite and mica the main crystalline phases present in the samples. (author)
Masses of particles in the SO(18) grand unified model

International Nuclear Information System (INIS)

Asatryan, G.M.

1984-01-01

The grand unified model based on the orthogonal group SO(18) is treated. The model involves four familiar and four mirror families of fermions. Arising of masses of familiar and mirror particles is studied. The mass of the right-handed Wsub(R) boson interacting via right-handed current way is estimated
Induction of labor in grand multiparous women with previous cesarean delivery: how safe is this?

Science.gov (United States)

Chibber, Rachana; Al-Harmi, Jehad; Foda, Mohamed; Mohammed K, Zeinab; Al-Saleh, Eyad; Mohammed, Asiya Tasneem

2015-02-01

To compare the outcome of induced and spontaneous labor in grand multiparous women with one previous lower segment cesarean section (CS), so that the safety of labor induction could be assessed. In 102 women (study group), labor was induced and the outcome was compared with 280 women (control group) who went into spontaneous labor. All 382 women were grand multiparous and had one previous CS. There were no significant difference in oxytocin augmentation, CS, scar dehiscence, fetal birth weight or apgar scores between groups. There was one neonatal death, two still births, one early neonatal death and one congenital malformation in the study group and this was not significant. There was no significant difference in vaginal birth in the study (80.9%) and the control group (83.8%). In this moderate-sized study, induction of labor may be a safe option in grand multiparous women, if there is no absolute induction for repeating CS.
Measurement and reproduction accuracy of computer-controlled grand pianos

Science.gov (United States)

Goebl, Werner; Bresin, Roberto

2003-10-01

The recording and reproducing capabilities of a Yamaha Disklavier grand piano and a Bösendorfer SE290 computer-controlled grand piano were tested, with the goal of examining their reliability for performance research. An experimental setup consisting of accelerometers and a calibrated microphone was used to capture key and hammer movements, as well as the acoustic signal. Five selected keys were played by pianists with two types of touch (``staccato'' and ``legato''). Timing and dynamic differences between the original performance, the corresponding MIDI file recorded by the computer-controlled pianos, and its reproduction were analyzed. The two devices performed quite differently with respect to timing and dynamic accuracy. The Disklavier's onset capturing was slightly more precise (+/-10 ms) than its reproduction (-20 to +30 ms); the Bösendorfer performed generally better, but its timing accuracy was slightly less precise for recording (-10 to 3 ms) than for reproduction (+/-2 ms). Both devices exhibited a systematic (linear) error in recording over time. In the dynamic dimension, the Bösendorfer showed higher consistency over the whole dynamic range, while the Disklavier performed well only in a wide middle range. Neither device was able to capture or reproduce different types of touch.
A construção do cidadão: os conteúdos escolares nas escolas públicas do Rio Grande do Sul na Primeira República

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Berenice Corsetti

2012-06-01

Full Text Available No Rio Grande do Sul, na Primeira República, ocorreu expressiva expansão do ensino, num contexto de modificações sociais e domínio político do Partido Republicano Rio-Grandense. Os conteúdos escolares, nesse processo, foram utilizados pelos dirigentes corno instrumento de construção do cidadão rio-grandense dos novos tempos do capitalismo. A reorganização curricular e programática efetivada nas escolas públicas do Rio Grande do Sul, na Primeira República, possibilitou a adoção de um caráter científico e técnico na estruturação dos conteúdos, o que foi importante para a formação dos trabalhadores que se faziam necessários para a realidade capitalista que os republicanos desejavam consolidar. A construção do cidadão que interessava ao projeto dos positivistas exigiu que a escola, além de ensinar, educasse para a disciplina, para a produtividade e para os cuidados com a saúde. A preparação para o mercado incluiu instrumentos através dos quais os governantes gaúchos prepararam a juventude rio-grandense para a aceitação da lógica do capital.Palavras-chave: conteúdos escolares, reorganização curricular, capitalismo. Abstract In Rio Grande do Sul, during the First Republic, there was na expressive expansion of teaching, in a context of social changes and political rule by the Rio-Grandense Republic Party. The educational subjects, in this course, were used by the directors as a way to prepare the citizen of Rio Grande do Sul for the new ages of capitalismo The curricular and program reorganization which took place at the publics schools of Rio Grande do Sul, during the First Republic, allowed the adoption of scientific and technical character in the struturation of the subjects, which was important for the creation of workers who would be necessary for the capitalist reality that republicans wanted to consolidate. The formation of the citizen which was of interest for the project of the positivists demanded
Ensemble pour apprendre à s'attaquer à de grandes questions de ...

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

25 janv. 2011 ... Ensemble pour apprendre à s'attaquer à de grandes questions de santé .... pour reprendre l'image de Martin Forde, de l'Université St. George, à la Grenade ... As the world observed International Youth Day (August 12), IDRC ...
Grande Ronde Basin Chinook Salmon Captive Brood and Conventional Supplementation Program, 2000 Annual Report.

Energy Technology Data Exchange (ETDEWEB)

Carmichael, Richard W. (Oregon Department of Fish and Wildlife, La Grande, OR)

2003-03-01

Endangered Species Permit Number 1011 (formerly Permit No. 973) authorizes ODFW to take listed spring chinook salmon juveniles from Catherine Creek (CC), Lostine River (LR) and Grande Ronde River (GR) for research and enhancement purposes. Modification 2 of this permit authorizes ODFW to take adults for spawning and the production and release of smolts for the Captive and Conventional broodstock programs. This report satisfies the requirement that an annual report be submitted. Herein we report on activities conducted and provide cursory data analyses for the Grande Ronde spring chinook salmon Captive and Conventional broodstock projects from 1 January-31 December 2000.
Grande Ronde Basin Chinook Salmon Captive Brood and Conventional Supplementation Programs, 2001 Annual Report.

Energy Technology Data Exchange (ETDEWEB)

Carmichael, Richard W. (Oregon Department of Fish and Wildlife, La Grande, OR)

2003-03-01

Endangered Species Permit Number 1011 (formerly Permit No. 973) authorizes ODFW to take listed spring chinook salmon juveniles from Catherine Creek (CC), Lostine River (LR) and Grande Ronde River (GR) for research and enhancement purposes. Modification 2 of this permit authorizes ODFW to take adults for spawning and the production and release of smolts for the Captive and Conventional broodstock programs. This report satisfies the requirement that an annual report be submitted. Herein we report on activities conducted and provide cursory data analyses for the Grande Ronde spring chinook salmon Captive and Conventional broodstock projects from 1 January-31 December 2001.
Pengaruh Experiential Marketing Dan Brand Trust Terhadap Kepuasan Konsumen Dan Loyalitas Pelanggan Hotel Grand Jatra Pekanbaru

OpenAIRE

Yufizar, Adithya Fajar; Restuti, Sri; Rahayu, Deny Danar

2017-01-01

This research aimed to analyze Experiential Marketing, Brand Trust on Customer Satisfaction and Customer Loyalty, research applied on customer Grand Jatra Hotel in Pekanbaru City. The object of this research was Customer Grand Jatra Hotel in Pekanbaru City. This research consists of four variables: the dependent variable, one intervening variable and two independent variables. They are Customer Loyalty(Y2), Customer Satisfaction (Y1), Brand Trust (X2), and Experintial Marketing (X1). This res...

Implications of potential future grand solar minimum for ozone layer and climate

Science.gov (United States)

Arsenovic, Pavle; Rozanov, Eugene; Anet, Julien; Stenke, Andrea; Schmutz, Werner; Peter, Thomas

2018-03-01

Continued anthropogenic greenhouse gas (GHG) emissions are expected to cause further global warming throughout the 21st century. Understanding the role of natural forcings and their influence on global warming is thus of great interest. Here we investigate the impact of a recently proposed 21st century grand solar minimum on atmospheric chemistry and climate using the SOCOL3-MPIOM chemistry-climate model with an interactive ocean element. We examine five model simulations for the period 2000-2199, following the greenhouse gas concentration scenario RCP4.5 and a range of different solar forcings. The reference simulation is forced by perpetual repetition of solar cycle 23 until the year 2199. This reference is compared with grand solar minimum simulations, assuming a strong decline in solar activity of 3.5 and 6.5 W m-2, respectively, that last either until 2199 or recover in the 22nd century. Decreased solar activity by 6.5 W m-2 is found to yield up to a doubling of the GHG-induced stratospheric and mesospheric cooling. Under the grand solar minimum scenario, tropospheric temperatures are also projected to decrease compared to the reference. On the global scale a reduced solar forcing compensates for at most 15 % of the expected greenhouse warming at the end of the 21st and around 25 % at the end of the 22nd century. The regional effects are predicted to be significant, in particular in northern high-latitude winter. In the stratosphere, the reduction of around 15 % of incoming ultraviolet radiation leads to a decrease in ozone production by up to 8 %, which overcompensates for the anticipated ozone increase due to reduced stratospheric temperatures and an acceleration of the Brewer-Dobson circulation. This, in turn, leads to a delay in total ozone column recovery from anthropogenic halogen-induced depletion, with a global ozone recovery to the pre-ozone hole values happening only upon completion of the grand solar minimum.
Espécies do gênero Munida Leach (Crustacea, Decapoda, Galatheidae coletadas entre Torres (Rio Grande do Sul, Brasil e Maldonado (Uruguai pelo Programa Rio Grande do Sul (PRS I-II, GEDIP Species of the genus Munida Leach (Crustacea, Decapoda, Galatheidae collected between Torres (Rio Grande do Sul, Brazil and Maldonado (Uruguay, by the Project Rio Grande do Sul (PRS I-II, GEDIP

Directory of Open Access Journals (Sweden)

Gustavo A.S. de Melo-Filho

2001-12-01

Full Text Available The project PRS-GEDIP was carried out in the Rio Grande do Sul coast, with some few stations off Maldonado (Uruguay, by means of a convention between Instituto Oceanográfico USP (IOUSP and the Grupo Executivo do Desenvolvimento da Indústria da Pesca (GEDIP of Rio Grande do Sul. The purpose of this project was the acquisition of data in order to have a better biotic and abiotic characterization of the southern Brazilian coast. Among the Galatheidae, about 1200 specimens of the genus Munida Leach, 1820 were collected, including five species as follows: Munida flinti Benedict, 1902; M. forceps A. Milne Edwards, 1880; M. iris A. Milne Edwards, 1880; M. irrasa A. Milne Edwards. 1880 and M. longipes A. Milne Edwards, 1880. The description, material examined, remarks and maps of the stations where each species was collected are done.
Spatial updating grand canonical Monte Carlo algorithms for fluid simulation: generalization to continuous potentials and parallel implementation.

Science.gov (United States)

O'Keeffe, C J; Ren, Ruichao; Orkoulas, G

2007-11-21

Spatial updating grand canonical Monte Carlo algorithms are generalizations of random and sequential updating algorithms for lattice systems to continuum fluid models. The elementary steps, insertions or removals, are constructed by generating points in space either at random (random updating) or in a prescribed order (sequential updating). These algorithms have previously been developed only for systems of impenetrable spheres for which no particle overlap occurs. In this work, spatial updating grand canonical algorithms are generalized to continuous, soft-core potentials to account for overlapping configurations. Results on two- and three-dimensional Lennard-Jones fluids indicate that spatial updating grand canonical algorithms, both random and sequential, converge faster than standard grand canonical algorithms. Spatial algorithms based on sequential updating not only exhibit the fastest convergence but also are ideal for parallel implementation due to the absence of strict detailed balance and the nature of the updating that minimizes interprocessor communication. Parallel simulation results for three-dimensional Lennard-Jones fluids show a substantial reduction of simulation time for systems of moderate and large size. The efficiency improvement by parallel processing through domain decomposition is always in addition to the efficiency improvement by sequential updating.
Enabling grand-canonical Monte Carlo: extending the flexibility of GROMACS through the GromPy python interface module.

Science.gov (United States)

Pool, René; Heringa, Jaap; Hoefling, Martin; Schulz, Roland; Smith, Jeremy C; Feenstra, K Anton

2012-05-05

We report on a python interface to the GROMACS molecular simulation package, GromPy (available at https://github.com/GromPy). This application programming interface (API) uses the ctypes python module that allows function calls to shared libraries, for example, written in C. To the best of our knowledge, this is the first reported interface to the GROMACS library that uses direct library calls. GromPy can be used for extending the current GROMACS simulation and analysis modes. In this work, we demonstrate that the interface enables hybrid Monte-Carlo/molecular dynamics (MD) simulations in the grand-canonical ensemble, a simulation mode that is currently not implemented in GROMACS. For this application, the interplay between GromPy and GROMACS requires only minor modifications of the GROMACS source code, not affecting the operation, efficiency, and performance of the GROMACS applications. We validate the grand-canonical application against MD in the canonical ensemble by comparison of equations of state. The results of the grand-canonical simulations are in complete agreement with MD in the canonical ensemble. The python overhead of the grand-canonical scheme is only minimal. Copyright © 2012 Wiley Periodicals, Inc.
Os Testudines continentais do Rio Grande do Sul, Brasil: taxonomia, história natural e conservação

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Clóvis S. Bujes

2010-12-01

Full Text Available O Rio Grande do Sul é o estado mais meridional do Brasil, apresentando fauna e flora peculiares associadas às características morfoclimáticas da região. A diversidade de Testudines do Rio Grande do Sul é representada por seis espécies continentais e cinco marinhas. Este estudo apresenta comentários sobre a diversidade de quelônios continentais do Rio Grande do Sul, através de uma compilação de dados publicados e alguns inéditos sobre sua biologia e estado de conservação.
Wintertime Boundary Layer Structure in the Grand Canyon.

Science.gov (United States)

Whiteman, C. David; Zhong, Shiyuan; Bian, Xindi

1999-08-01

Wintertime temperature profiles in the Grand Canyon exhibit a neutral to isothermal stratification during both daytime and nighttime, with only rare instances of actual temperature inversions. The canyon warms during daytime and cools during nighttime more or less uniformly through the canyon's entire depth. This weak stability and temperature structure evolution differ from other Rocky Mountain valleys, which develop strong nocturnal inversions and exhibit convective and stable boundary layers that grow upward from the valley floor. Mechanisms that may be responsible for the different behavior of the Grand Canyon are discussed, including the possibility that the canyon atmosphere is frequently mixed to near-neutral stratification when cold air drains into the top of the canyon from the nearby snow-covered Kaibab Plateau. Another feature of canyon temperature profiles is the sharp inversions that often form near the canyon rims. These are generally produced when warm air is advected over the canyon in advance of passing synoptic-scale ridges.Wintertime winds in the main canyon are not classical diurnal along-valley wind systems. Rather, they are driven along the canyon axis by the horizontal synoptic-scale pressure gradient that is superimposed along the canyon's axis by passing synoptic-scale weather disturbances. They may thus bring winds into the canyon from either end at any time of day.The implications of the observed canyon boundary layer structure for air pollution dispersion are discussed.
Purchase policies to fresh fruit and vegetables in supermarkets in Campo Grande, Brazil Formas de compra e procedência de hortaliças na rede de supermercados em Campo Grande (MS

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Dario de O Lima-Filho

2012-03-01

Full Text Available This study aims to analyze purchase policies to fruits and vegetables in supermarkets in Campo Grande, Brazilian Midwest. Thirteen interviews were conducted with representatives from supermarkets, small, medium and large, responsible for purchasing fresh vegetables. By analyzing the responses obtained through interviews, we can observe that producers make almost the entire supply of fruits and vegetables in large supermarkets from other states, and the small and medium establishments usually buy more with the local producer. For retailers, the fruits and vegetables represent an important factor to create internal circulation of customers in stores and a factor of attraction of clients too, in addition, this products offer high profitability. For the supermarket, the fruits and vegetables locally produced are fresher and have lower comparative cost. However, supply regularity, the volume and variety offered by local producers are considered unsatisfactory.O presente estudo objetiva analisar as formas de compra dos supermercados para o abastecimento de hortaliças em Campo Grande. Foram realizadas treze entrevistas com representantes de supermercados de pequeno, médio e grande porte, responsáveis pelas compras destes produtos. Os resultados revelam que praticamente todo o fornecimento de hortaliças nos grandes supermercados é feito por produtores de outros estados, sendo que os estabelecimentos de pequeno e médio porte ainda conseguem abastecer-se satisfatoriamente com os produtores locais. Para os varejistas, o setor de hortaliças representa importante espaço de geração de tráfego interno de clientes nas lojas, sendo um fator de atração. Pode-se verificar, ainda, que as hortaliças produzidas localmente atendem ao requisito "frescor" e também possuem menor custo comparativo, porém, a regularidade no fornecimento, o volume e a variedade oferecida pelos produtores locais são considerados insatisfatórios.
Ocorrência do ácaro vermelho europeu Panonychus ulmi (Koch (Tetranychidae associado à cultura da videira no Rio Grande do Sul, Brasil European red spider mite Panonychus ulmi (Koch (Tetranychidae occurrence of vineyards in Rio Grande do Sul, Brazil

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Noeli Juarez Ferla

2008-09-01

Full Text Available Neste artigo é descrita ocorrência e o dano causado pelo ácaro vermelho europeu Panonychus ulmi (Koch associado à cultura da videira. As coletas foram realizadas na safra 2005-2006 em Vitis vinifera L. da cultivar Merlot, nos municípios de Bento Gonçalves e Candiota, no Estado do Rio Grande do Sul, Brasil. As folhas infestadas apresentaram bronzeamento, com manchas avermelhadas na face adaxial, resultando na queda prematura das mesmas. Esse é o primeiro registro do ácaro vermelho europeu danificando a cultura da videira no Rio Grande do Sul.The occurrence and the damage caused for the European red spider mite Panonychus ulmi (Koch associated to the culture of the grapevine are described. The collections had been carried through in 2005-2006 seasons in Vitis vinifera L. of cultivating Merlot in Bento Gonçalves and Candiota counties, in the state of Rio Grande do Sul, Brazil. The infested leaves had presented bronzing, with spots redly in the adaxial face resulting in the premature fall. This is the first register of the European red mite damaging the culture of the grapevine in Rio Grande do Sul.
UMTRA project water sampling and analysis plan, Grand Junction, Colorado

International Nuclear Information System (INIS)

1994-07-01

Surface remedial action will be completed at the Grand Junction processing site during the summer of 1994. Results of 1993 water sampling indicate that ground water flow conditions and ground water quality at the processing site have remained relatively constant with time. Uranium concentrations in ground water continue to exceed the maximum concentration limits, providing the best indication of the extent of contaminated ground water. Evaluation of surface water quality of the Colorado River indicate no impact from uranium processing activities. No compliance monitoring at the Cheney disposal site has been proposed because ground water in the Dakota Sandstone (uppermost aquifer) is classified as limited-use (Class 111) and because the disposal cell is hydrogeologically isolated from the uppermost aquifer. The following water sampling and water level monitoring activities are planned for calendar year 1994: (i) Semiannual (early summer and late fall) sampling of six existing monitor wells at the former Grand Junction processing site. Analytical results from this sampling will be used to continue characterizing hydrogeochemical trends in background ground water quality and in the contaminated ground water area resulting from source term (tailings) removal. (ii) Water level monitoring of approximately three proposed monitor wells projected to be installed in the alluvium at the processing site in September 1994. Data loggers will be installed in these wells, and water levels will be electronically monitored six times a day. These long-term, continuous ground water level data will be collected to better understand the relationship between surface and ground water at the site. Water level and water quality data eventually will be used in future ground water modeling to establish boundary conditions in the vicinity of the Grand Junction processing site. Modeling results will be used to help demonstrate and document the potential remedial alternative of natural flushing
Pautas de localización de las sedes de las grandes empresas y entornos metropolitanos

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Joan-Eugeni Sánchez

2007-12-01

Full Text Available La localización de las sedes de las grandes empresas {headquarter es un tema de interés socioterritorial por cuanto implica relaciones de poder y dependencia entre territorios, con tendencia progresiva a la mundialización. El objetivo principal es detectar algunos de los factores socioterritoriales que intervienen en su localización, sobre la hipótesis de la importancia que tienen los entornos metropolitanos y de capitalidad. El análisis empírico se plantea al nivel de los centros de decisión de las grandes empresas y al nivel de los centros de decisión subsidiaria en naciones secundarias (España. Así la escala mundial de las grandes empresas multinacionales se contrastará con lo que ocurre dentro de un territorio secundario en las lógicas de distribución de las sedes primarias y subsidiarias. Se toma como base las 500 grandes empresas mundiales (Fortune, 2005 y las 1000 mayores empresas en España para los territorios secundarios. La conclusión es que la concentración territorial de poder político, poder económico y vinculación internacional -por este orden de importancia-, son los tres factores fundamentales que explican las decisiones de localización tanto de sedes centrales como subsidiarias, condiciones que de forma casi exclusiva se dan en las áreas metropolitanas, y con especial significación en las capitales de Estado
Site observational work plan for the UMTRA project site at Grand Junction, Colorado

International Nuclear Information System (INIS)

1996-01-01

This site observational work plan (SOWP) is one of the first Uranium Mill Tailings Remedial Action (UMTRA) Ground Water Project documents developed to select a compliance strategy that meets the UMTRA ground water standards for the Grand Junction site. This SOWP applies information about the Grand Junction site to the compliance strategy selection framework developed in the UMTRA Ground Water Project draft programmatic environmental impact statement. This risk-based, decision-making framework identifies the decision logic for selecting compliance strategies that could be used to meet the ground water standards. The US Department of Energy (DOE) goal is to implement a cost-effective site strategy that complies with the ground water standards and protects human health and the environment. Based on an evaluation of the site characterization and risk assessment data available for the preparation of this SOWP, DOE proposes that the most likely compliance strategy for the Grand Junction site is no remediation with the application of supplemental standards. This proposed strategy is based on a conceptual site model that indicates site-related contamination is confined to a limited-use aquifer as defined in the ground water standards. The conceptual model demonstrates that the uranium processing-related contamination at the site has affected the unconfined alluvial aquifer, but not the deeper confined aquifer
La réfrigération des grandes machines supraconductrices

Science.gov (United States)

Gistau, Guy

1991-02-01

The large scale superconducting devices which are now in operation for deviation of heavy particles, acceleration of light particles or plasma confinement need very large powers of refrigeration. After a short survewing of the different functions of refrigerators and the special requirements for large units, the paper describes some existing or envisaged cooling systems which have an equivalent cooling power in the range of 5 kW at 4.5 K. Les grands appareils de physique utilisant les supraconducteurs demandent des puissances cryogéniques de plus en plus importantes. Après un examen des fonctions élémentaires assurées par un réfrigérateur liées au cahier des charges spécifique à chaque utilisation, les spécificités des grosses unités de réfrigération (fiabilité, efficacité, flexibilité, automatisme) sont mises en évidence. Les solutions proposées dans plusieurs grands projets nécessitant des puissances froides supérieures à 5 kW à 4,5 K sont discutées.
Grande Ronde Basin Spring Chinook Salmon Captive Broodstock Program, 2008 Annual Report.

Energy Technology Data Exchange (ETDEWEB)

Hoffnagle, Timothy L.; Hair, Donald; Gee, Sally

2009-03-31

The Grande Ronde Basin Spring Chinook Salmon Captive Broodstock Program is designed to rapidly increase numbers of Chinook salmon in stocks that are in imminent danger of extirpation in Catherine Creek (CC), Lostine River (LR) and upper Grande Ronde River (GR). Natural parr are captured and reared to adulthood in captivity, spawned (within stocks) and their progeny reared to smoltification before being released into the natal stream of their parents. This program is co-managed by ODFW, National Marine Fisheries Service, Nez Perce Tribe and Confederated Tribes of the Umatilla Indian Reservation. Presmolt rearing was initially conducted at Lookingglass Fish Hatchery (LFH) but parr collected in 2003 and later were reared at Wallowa Fish Hatchery (WFH). Post-smolt rearing is conducted at Bonneville Fish Hatchery (BOH - freshwater) and at Manchester Research Station (MRS - saltwater). The CC and LR programs are being terminated, as these populations have achieved the goal of a consistent return of 150 naturally spawning adults, so the 2005 brood year was the last brood year collected for theses populations. The Grande Ronde River program continued with 300 fish collected each year. Currently, we are attempting to collect 150 natural parr and incorporate 150 parr collected as eggs from females with low ELISA levels from the upper Grande Ronde River Conventional Hatchery Program. This is part of a comparison of two methods of obtaining fish for a captive broodstock program: natural fish vs. those spawned in captivity. In August 2007, we collected 152 parr (BY 2006) from the upper Grande Ronde River and also have 155 Grande Ronde River parr (BY 2006) that were hatched from eyed eggs at LFH. During 2008, we were unable to collect natural parr from the upper Grande Ronde River. Therefore, we obtained 300 fish from low ELISA females from the upper Grande Ronde River Conventional Program. In October 2008 we obtained 170 eyed eggs from the upper Grande Ronde river Conventional
Proceedings of the fourth workshop on grand unification

Energy Technology Data Exchange (ETDEWEB)

Weldon, H.A.; Langacker, P.; Steinhardt, P.J.

1983-01-01

This book compiles the papers presented at the fourth conference of grand unified theories of nuclear physics held in University of Pennsylvania April 1983. The topics covered were proton decay theory; angular distribution and flux of atmospheric neutrinos; atmospheric neutrinos and astrophysical neutrinos in proton decay experiments; review of future nucleon decay experiments; monopole experiments; searches for magnetic monopole; monopoles, gauge, fields and anomalies; darkmatter, galaxies and voids; adiabatic fluctuations; supersymmetry, supergravity, and Kaluza-Klein theories; superstring theory and superunification.
El poder de las grandes empresas petroleras: 19001950

OpenAIRE

Jesús Mora Contreras

2003-01-01

Entre 1900 y 1950 las grandes corporaciones petroleras internacionales lograron imponer a los propietarios del recurso natural en el Medio Oriente y en Venezuela las normas y procedimientos que regulaban contractual y legalmente las actividades de exploración y explotación de petróleo. Lograron además crear un cartel interna-cional de empresas productoras para dividirse el mercado entre ellas e imponer a los consumidores un sistema de fijación del precio mundial del crudo.
Leucemia de grandes linfócitos granulares

OpenAIRE

Terra,Bruno; Maia,Amanda M.

2010-01-01

O presente estudo tem como objetivo o estabelecimento de fundamentação teórica atualizada baseada em revisão bibliográfica sobre a leucemia de grandes linfócitos granulares (LGLG), doença onco-hematológica, que, devido à sua relativa raridade, é pouco conhecida e subdiagnosticada. A LGLG é caracterizada pela proliferação clonal de linfócitos T ou NK na medula óssea e/ou no sangue periférico. Dentre as manifestações clínico-laboratoriais, podem ocorrer citopenias (anemia e/ou neutropenia e/ou ...
Los milagros de la Mamá Grande

OpenAIRE

Palomares Güells, Laura

2017-01-01

Análisis de la figura mítica de Carmen Balcells desde el arquetipo de "la Mamá Grande" con el que se la ha identificado en numerosas ocasiones, para observar la relevancia de Balcells en la memoria editorial colectiva del boom latinoamericano. Anàlisi de la figura mítica de Carmen Balcells des de l'arquetip de la "Mamà Gran" amb el que se l'ha identificat en nombroses ocasions per a observar la rellevància de Balcells en la memòria editorial col·lectiva del boom llatinoamericà.
Loïc Brémaud, Catherine Guillaumin, L'archipel de l'ingénierie de la formation. Transformations, recompositions

OpenAIRE

Wahl, Elodie

2011-01-01

L'ouvrage L'archipel de l'ingénierie de la formation est la publication des actes d'un colloque qui s'est tenu à l'Université de Rennes 2 en janvier 2009. Le colloque comptait 22 intervenants, l'ouvrage est conséquent, et les articles sont très variés, tant par les perspectives adoptées, que par leurs formes ou leurs contenus. L'ouvrage se divise en trois grandes parties : la première traite de l'évolution de l'ingénierie de la formation, la seconde des nouvelles pratiques d'ingénierie, et la...
O Conselho Estadual do Povo de Terreiro: religiões afro-brasileiras e políticas públicas no Rio Grande do Sul

Directory of Open Access Journals (Sweden)

Marcelo Tadvald

2017-01-01

Full Text Available This work seeks to problematize the formulation and application of governmental public policies in recent years focused on the Afro-Gaucho religions, based on the formation context and recent actions of the State Council of the People of Terreiro (CPTERS in the gaucho political scene. Following, we argue about some persecutory actions by local parliamentarians in recent years (2003, 2005, 2015, which sought to restrict liturgical practices that involve the free exercise of afro-religions in Rio Grande do Sul starting from a historical and present discussion and from references from the field of social studies of religion, thus seeking to situate the case of CPTERS within a larger framework of analysis involving themes such as ethnicity, racism and religious intolerance.
Development of a Multi-functional Soft Robot (SNUMAX and Performance in RoboSoft Grand Challenge

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Jun-Young Lee

2016-10-01

Full Text Available This paper introduces SNUMAX, the grand winner of the RoboSoft Grand Challenge. SNUMAX was built to complete all the tasks of the challenge. Completing these tasks required robotic compliant components that could adapt to variable situations and environments and generate enough stiffness to maintain performance. SNUMAX has three key components: transformable origami wheels, a polymer-based variable stiffness manipulator, and an adaptive caging gripper. This paper describes the design of these components and how they worked together to allow the robot to perform the contest’s navigation and manipulation tasks.

Tornado damage at the Grand Gulf, Mississippi nuclear power plant site: aerial and ground surveys

International Nuclear Information System (INIS)

Fujita, T.T.; McDonald, J.R.

1978-05-01

A tornado struck the Grand Gulf nuclear power generating station, Port Gibson, Mississippi, about 11:30 p.m. on April 17, 1978. Storm damage investigators from the University of Chicago and Texas Tech University were dispatched to survey the damage. The meteorological situation that spawned the Grand Gulf tornado and seven others in the area is discussed. Aerial surveys of the entire damage path and detailed surveys of the plant site are presented. An engineering evaluation of the damage is also presented based primarily on information gained from detailed ground surveys
Diagnóstico da floricultura no Rio Grande do Sul Diagnosis of floriculture in Rio Grande do Sul, Brazil

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Atelene Normann Kämpf

1999-09-01

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

International Nuclear Information System (INIS)

Pereira, Joao Eduardo; Silva, Jose Luiz Silverio da; Pires, Carlos Alberto; Strieder, Adelir Jose

2008-01-01

This work consists of data integration of uranium concentrations, parts per million (ppm), associated to the different rock formations belonging to Parana Basin in the region of Santa Maria, in the Rio Grande do Sul state southern Brazil. This study was developed from primary data generated by the Companhia de Pesquisas de Recursos Minerais as part of the AERO/Camaqua; Project, 1010 code series, digitalized in the 1997 Geosoft XYZ format. Through an irregular net of values of uranium concentration, with 25806 observations were spatially oriented by Universal Transverse Mercator/ UTM coordinates. Which were varied from west to east 206190 to 276813 E, and from north to south 6670888 to 6735665 N, totalizing an area of 4574.75 km 2 . Using Statistica 7.1 software licensed to the Department of Statistics at the Federal University of Santa Maria, the mean values of and the confidence limits with alpha = 0.05, the standard deviations of uranium concentrations for each rock formation. The comparisons between the mean values were made through the Tuckey's Test and the spatial variation of the concentrations in relation to the geographical coordinates were adjusted to a polynomial model. The results obtained showed that the uranium concentrations occur in a distinct way in the different geological formations studied (aluvionar unconsolidated sediments, sandstones and igneous volcanic acid and basic rocks). The uranium variable, when spatialized in relation to the geographical coordinates UTM were adjusted to a second order polynomial model. (author)
Megatrends and grand challenges of cybercrime and cyberterrorism policy and research

NARCIS (Netherlands)

Koops, Bert Jaap; Akhgar, Babak; Brewster, Ben

2016-01-01

What are grand challenges of cybercrime and cyberterrorism policy and research for the coming one or two decades? To answer this question, we first need to grasp some major trends that influence the future of cybercrime and cyberterrorism, and the combatting thereof, in fundamental ways. This
Grand slam on cancer.

Science.gov (United States)

Gartrell, Nanette

2014-01-01

A winner of 59 Grand Slam championships including a record 9 Wimbledon singles titles, Martina Navratilova is the most successful woman tennis player of the modern era. Martina was inducted into the International Tennis Hall of Fame, named "Tour Player of the Year" seven times by the Women's Tennis Association, declared "Female Athlete of the Year" by the Associated Press, and ranked one of the "Top Forty Athletes of All-Time" by Sports Illustrated. Equally accomplished off the court, Martina is an author, philanthropist, TV commentator, and activist who has dedicated her life to educating people about prejudice and stereotypes. After coming out as a lesbian in 1981, Martina became a tireless advocate of equal rights for lesbian, gay, bisexual, and transgender (LGBT) people, and she has contributed generously to the LGBT community. Martina is the author of seven books, including most recently Shape Your Self: My 6-Step Diet and Fitness Plan to Achieve the Best Shape of your Life, an inspiring guide to healthy living and personal fitness. Martina was diagnosed with breast cancer in 2010.
Yuntaishan Global Geopark VS Grand Canyon World Heritage Site A Contrast of Yuntai/Grand Canyon Physiognomy

Science.gov (United States)

Ting, Zhao; Xun, Zhao

2017-04-01

Yuntai/Grand Canyon is a result of long-term historical evolution and a rare natural heritage of the world. With its rich heritages of geological physiognomy, systematic geological record, abundant biological fossil combination, long history of structural evolution, they are of contrastive research values worldwide. The Grand Canyon was declared national natural heritage on eleventh January, and in 1979 it was entitled World Natural Heritage Site. Though the two major sites are separated by tremendous seas, they reached agreements in the protection of natural heritages worldwide on account of the shared ideas of society, demonstrating to our children how can we protect the two scenery sites. Keyword:Geopark, Geoheritage, Yuntai Landform, GrandCanyon Mt. Taihang rises from the central part of north China and extends to the west edge of North China Plain. Towering, and with ragged peaks, precarious cliffs, long strips of walls, deep valleys and shaded streams, Mt. Taihang poses impressive sights with its clear water, dense forest and wonderful sceneries. It is indeed the east slope of Qin-Jin Plateau. Indeed things tend to coincide. On the other side of the Pacific Ocean, along the west edge of north America and on the wide and spacious Colorado Plateau, there is a winding and deep valley where there are layers of rocks, extensive sharp cliffs, intercrossing ravines and forests of peaks; it is totally impressive. Both sceneries are known to the world for their beauty. Identical geological conditions and similar history of evolution left two natural sights that resemble each other so much. Geological changes are infinite, and sedimentation works in similar ways on both sights; and the changing ecological environment gives the world two colorful and comparable geological records. Both sights are merely brief periods in the long history of earth development, but they show us how cradles of human proliferation and social civilization had looked. 1,Comparison of two parks
IMPLEMENTASI CUSTOMER RELATIONSHIP MARKETING PADA GRAND MIRAGE RESORT AND THALASSO BALI

Directory of Open Access Journals (Sweden)

Ni Nyoman Triyuni1

2017-12-01

Full Text Available Tujuan penelitian ini adalah untuk mengetahui implementasi customer relationship marketing pada Grand Mirage Resort and Thalasso Bali. Penelitian ini merupakan analisis deskritif kualitatif yang dilakukan melalui pengkategorian. Data disajikan berdasarkan kategori lalu dilaksanakan komparasi data, kemudian penarikan simpulan. Bedasarkan hasil penelitian menunjukkan implementasi customer relationship marketing pada Grand Mirage Resort and Thalasso Bali yaitu menggunakan tiga konsep customer relationship marketing yang terdiri dari attraction, retention, dan enhancement. Attraction merupakan daya tarik andalan yang berupa program-program seperti All Inclusive dan Guest Daily Activities, selain itu penampilan karyawan yang menerapkan pelayanan prima melalui self friendliness, attitude dan attention. Retention merupakan sikap perusahaan untuk menjalankan hubungan dengan pelanggan yang bernilai guna, adapun program yang diterapkan adalah loyalty program repeater guest. Enhancement merupakan kemitraan yang dijalin untuk memperoleh posisi berkelanjutan di pasar dengan menjaga komunikasi dengan tamu, adanya kedekatan dengan para tamu, menumbuhkan hubungan jangka panjang serta dapat menanggulangi keluhan dari tamu.
PENDELEGASIAN TUGAS KEPADA TRAINEE DI MAIN KITCHEN GRAND ROYAL PANGHEGAR HOTEL BANDUNG

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Asep Rijwan

2016-03-01

Abstrak - Masalah yang di teliti adalah bagaimana pendelegasian tugas kepadatraineedi main kitchen, bagaimana standar operasional prosedur pendelegasian tugas kepada trainee di main kitchen, serta bagaimana kesempatan dan peluang dari pendelegasian tugas kepada trainee di main kitchen. Dalam hal pengolahan data, penulis menggunakan analisis deskriptif, yaitu metode yang berusaha mengumpulkan data dan sesuai dengan keadaan yang sebenarnya, menyajikan serta menganalisanya sehigga dapat memberikan gambaran yang cukup jelas atas objek yang diteliti dan kemudian di ambil kesimpulannya. Berdasarkan hasil observasi ini dapat disimpulkan bahwa pendelegasian tugas kepada trainee di Main Kitchen Grand Royal Panghegar Hotel sudah dilaksanakan dengan sangat baik, hal ini dapat dilihat dengan di selesaikannya delegasi tugas dengan baik pula oleh trainee. Standar operasional prosedur pendelegasian kepada trainee di Main Kitchen Grand Royal Panghegar Hotel sudah baik, hal ini dapat dilihat bahwa trainee dapat melaksanakan kegiatan- kegiatan yang ada di main kitchen dengan baik pula. Peluang dari pendelegasian tugas kepada trainee di Main Kitchen Grand Royal Panghegar Hotel menjadikan trainee lebih percaya diri, memiliki pengalaman baru dalam mengolah makanan, lebih meningkatnya skill trainee, dan memiliki pengetahuan yang lebih dari sebelumnya, dan staff pun tidak akan mendapat terlalu banyak beban pekerjaan, karena sebagian dapat dikerjakan oleh trainee dengan baik. Berdasarkan dari hasil observasi dan pembahasan tersebut, penulis menyimpulkan bahwa apabila standar operasional prosedur pendelegasian kepada Trainee dijalankan dengan baik, maka selain berdampak baik kepada trainee akan berdampak baik pula kepada staff atau hotel itu sendiri.
Trilha ecológica do Cavalo-Marinho: Ecoturismo em Barra Grande/PI

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Andrea Geisa Pereira Barbosa

2010-06-01

Full Text Available Na comunidade Barra Grande, localidade do município de Cajueiro da Praia - PI existe uma trilha ecológica muito bem planejada pelos moradores locais da própria comunidade: A Trilha do Cavalo - Marinho. Essa trilha consiste em um passeio ecológico, onde se trabalham comutantemente o turismo, a sustentabilidade e a educação ambiental. A área de estudo - a localidade Barra Grande - pertence à Área de Proteção Ambiental (APA do Delta do Parnaíba (APA do Delta do Parnaíba, que visa proteger os ecossistemas costeiros, localizados nos estados do Maranhão, Piauí e Ceará. A referente pesquisa tem como principal objetivo inter-relacionar o termo ecoturismo, educação ambiental, sustentabilidade, e a trilha do cavalo marinho, realizado na pequena localidade do Piauí, Barra Grande. A metodologia utilizada no trabalho em estudo foi pesquisa bibliográfica: constituída de um conjunto de obras escritas referente ao turismo, desenvolvimento sustentável, desenvolvimento local sustentável, meio ambiente e educação ambiental e pesquisa de campo não participativa: realizada para obtenção das informações sobre a situação da área de estudo e analisar os aspectos trabalhados pelos moradores tanto na questão de educação ambiental como da sustentabilidade.
Grande Ronde Basin Fish Habitat Enhancement Project : 2000 Annual Report.

Energy Technology Data Exchange (ETDEWEB)

McGowan, Vance R.; Powell, Russ M.; Stennfeld, Scott P.

2001-04-01

On July 1, 1984 the Bonneville Power Administration and the Oregon Department of Fish and Wildlife entered into an agreement to initiate fish habitat enhancement work in the Joseph Creek subbasin of the Grande Ronde River Basin in northeast Oregon. In July of 1985 the Upper and Middle Grande Ronde River, and Catherine Creek subbasins were included in the intergovernmental contract, and on March 1, 1996 the Wallowa River subbasin was added. The primary goal of ''The Grande Ronde Basin Fish Habitat Enhancement Project'' is to access, create, improve, protect, and restore riparian and instream habitat for anadromous salmonids, thereby maximizing opportunities for natural fish production within the basin. This project provided for implementation of Program Measure 703 (C)(1), Action Item 4.2 of the Northwest Power Planning Council's Columbia River Basin Fish and Wildlife Program (NPPC, 1987), and continues to be implemented as offsite mitigation for mainstem fishery losses caused by the Columbia River hydro-electric system. All work conducted by the Oregon Department of Fish and Wildlife is on private lands and therefore requires that considerable time be spent developing rapport with landowners to gain acceptance of, and continued cooperation with this program throughout 10-15 year lease periods. This project calls for passive regeneration of habitat, using riparian enclosure fencing as the primary method to restore degraded streams to a normative condition. Active remediation techniques using plantings, off-site water developments, site-specific instream structures, or whole channel alterations are also utilized where applicable. Individual projects contribute to and complement ecosystem and basin-wide watershed restoration efforts that are underway by state, federal, and tribal agencies, and local watershed councils. Work undertaken during 2000 included: (1) Implementing 2 new projects in the Grande Ronde drainage, and retrofitting one old
Os grandes projetos urbanos como estratégia de crescimento econômico

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Alberto de Oliveira

2013-05-01

Full Text Available Os grandes projetos urbanos são apresentados como estratégias de desenvolvimento econômico e social. O objetivo desse trabalho é estudar as experiências de São Paulo e do Rio de Janeiro para mostrar os limites, os custos e as potencialidades dessas estratégias. A investigação mostrou que os resultados obtidos não alcançaram os objetivos desejados pelos defensores dos grandes projetos. As populações socialmente vulneráveis atingidas pelos projetos tiveram perdas. Essas experiências serviram para apontar elementos cruciais que devem ser analisados em projetos importantes em curso no Brasil, especialmente a Copa do Mundo e os Jogos Olímpicos.
Probing the design of grand unification through conservation laws

International Nuclear Information System (INIS)

Pati, J.C.

1981-01-01

The purpose of this talk is to note a few special consequences of gauging ''maximal'' quark-lepton symmetries such as SO(16), which is the maximal symmetry for a single family of fermions. Within these symmetries, violations for B, L and F are spontaneous rather than explicit. Furthermore these symmetries as a rule permit intermediate mass scales approx.(10 3 -10 6 GeV) and (10 8 -10 11 GeV) filling the so-called grand plateau between 10 2 and 10 15 GeV. It has been shown in earlier papers that within these symmetries proton may decay via four alternative models: i.e. proton→one or three leptons or antileptons plus mesons; some of which can coexist. It is now observed that even n-n-bar oscillations can coexist with (B-L) conserving proton-decays of the type p→e + π 0 etc. without posing any conflict with the cosmological generation of baryon-excess; both these processes can possess measurable strengths so as to be amenable to forthcoming searches. Search for alternative decay modes of proton and n-n-bar oscillations, even as processes in second and third generation experiments, would provide valuable information on the question of intermediate mass-scales and thereby on the design of grand unification
Grand Challenges and Chemical Engineering Curriculum--Developments at TU Dortmund University

Science.gov (United States)

Kockmann, Norbert; Lutze, Philip; Gorak, Andrzej

2016-01-01

Chemical processing industry is progressively focusing their research activities and product placements in the areas of Grand Challenges (or Global Megatrends) such as mobility, energy, communication, or health care and food. Innovation in all these fields requires solving high complex problems, rapid product development as well as dealing with…
Grand challenge problems in environmental modeling and remediation: groundwater contaminant transport

Energy Technology Data Exchange (ETDEWEB)

Todd Arbogast; Steve Bryant; Clint N. Dawson; Mary F. Wheeler

1998-08-31

This report describes briefly the work of the Center for Subsurface Modeling (CSM) of the University of Texas at Austin (and Rice University prior to September 1995) on the Partnership in Computational Sciences Consortium (PICS) project entitled Grand Challenge Problems in Environmental Modeling and Remediation: Groundwater Contaminant Transport.
Geology of Santa Rita Coal Basin, Rio Grande do Sul, Brazil

Energy Technology Data Exchange (ETDEWEB)

Correa da Silva, Z.C.; Bortoluzzi, C.A.; Cazzulo-Klepzig, M.; Dias-Fabricio, M.E.; Guerra-Sommer, M.; Marques-Toigo, M.; Paim, P.S.G.; Piccoli, A.E.M.; Silva Filho, B.C.

1984-04-01

Data on the sedimentology, stratigraphy, palynology, coal petrography and geochemistry of the Santa Rita Coal Basin, Rio Grande do Sul, Brazil, are presented. The investigations were carried out on samples obtained from drill cores of the sedimentary rocks of Tubarao Supergroup, Lower Permian of Parana Basin. (25 refs.)
Classification of three-family grand unification in string theory. II. The SU(5) and SU(6) models

International Nuclear Information System (INIS)

Kakushadze, Z.; Tye, S.H.

1997-01-01

Requiring that supersymmetric SU(5) and SU(6) grand unifications in the heterotic string theory must have three chiral families, adjoint (or higher representation) Higgs fields in the grand unified gauge group, and a non-Abelian hidden sector, we construct such string models within the framework of free conformal field theory and asymmetric orbifolds. Within this framework, we construct all such string models via Z 6 asymmetric orbifolds that include a Z 3 outerautomorphism, the latter yielding a level-three current algebra for the grand unification gauge group SU(5) or SU(6). We then classify all such Z 6 asymmetric orbifolds that result in models with a non-Abelian hidden sector. All models classified in this paper have only one adjoint (but no other higher representation) Higgs field in the grand unified gauge group. This Higgs field is neutral under all other gauge symmetries. The list of hidden sectors for three-family SU(6) string models are SU(2), SU(3), and SU(2)circle-times SU(2). In addition to these, three-family SU(5) string models can also have an SU(4) hidden sector. Some of the models have an apparent anomalous U(1) gauge symmetry. copyright 1997 The American Physical Society
Human migration, railways and the geographic distribution of leprosy in Rio Grande do Norte State – Brazil

Science.gov (United States)

Nobre, Mauricio Lisboa; Dupnik, Kathryn Margaret; Nobre, Paulo José Lisboa; De Souza, Márcia Célia Freitas; Dűppre, Nádia Cristina; Sarno, Euzenir Nunes; Jerŏnimo, Selma Maria Bezerra

2016-01-01

Summary Introduction Leprosy is a public health problem in Brazil where 31,044 new cases were detected in 2013. Rio Grande do Norte is a small Brazilian state with a rate of leprosy lower than other areas in the same region, for unknown reasons. Objectives We present here a review based on the analysis of a database of registered leprosy cases in Rio Grande do Norte state, comparing leprosy's geographic distribution among municipalities with local socio-economic and public health indicators and with historical documents about human migration in this Brazilian region. Results The current distribution of leprosy in Rio Grande do Norte did not show correlation with socio-economic or public health indicators at the municipal level, but it appears related to economically emerging municipalities 100 years ago, with spread facilitated by railroads and train stations. Drought-related migratory movements which occurred from this state to leprosy endemic areas within the same period may be involved in the introduction of leprosy and with its present distribution within Rio Grande do Norte. Conclusions Leprosy may disseminate slowly, over many decades in certain circumstances, such as in small cities with few cases. This is a very unusual situation currently and a unique opportunity for epidemiologic studies of leprosy as an emerging disease. PMID:26964429
Pitiose cutânea em bovinos na região Sul do Rio Grande do Sul Cutaneous pythiosis in cattle in the Southern region of Rio Grande do Sul, Brazil

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Fabiane B. Grecco

2009-11-01

Full Text Available Descreve-se a ocorrência de pitiose cutânea em bovinos de corte na região sul do Rio Grande do Sul. Os animais foram introduzidos em área alagada e desenvolveram lesões cutâneas ulcerativas e úmidas, de tamanhos variados, localizadas na região distal dos membros e no chanfro nasal. Histologicamente, as lesões eram caracterizadas por múltiplos granulomas com hifas intralesionais, melhor observadas pela coloração de metenamina nitrato de prata de Gomori, e circundadas por abundante tecido conjuntivo fibroso. O diagnóstico foi realizado com base na epidemiologia, lesões macroscópicas e histológicas e pela reação imuno-histoquímica positiva com anticorpo policlonal anti-Pythium insidiosum. A morbidade foi de 23,8% e os animais adoeceram 15-90 dias após a introdução na área alagada. Em todos os casos as lesões evoluíram para a cura sem tratamento. Sugere-se que a doença possa ser mais frequente em bovinos do que se supõe, principalmente em áreas alagadas da região Sul do Rio Grande do Sul.An outbreak of cutaneous pythiosis is described in cattle from southern Rio Grande do Sul, Brazil. Cattle were introduced into flooded pastures and developed ulcerative and wet cutaneous lesions on distal limbs and Planum nasale. Histologically, the lesions were characterized by multiple granulomas with intralesional hyphae, better seen in the methenamine silver stain, and surrounded by abundant fibrous tissue. Diagnosis was based on epidemiology, gross and histological lesions, and by positive immuno-histochemical reaction with anti-Pythium insidiosum polyclonal antibody. Morbidity was 23.8% and lesions were observed 15-90 days after cattle were introduced in the flooded area. Affected cattle had spontaneous healing without treatment. It is suggested that the disease is more frequent than what was earlier thought, mainly in flooded areas of the Southern region of the Rio Grande do Sul State.
Supersymmetric grand unified theories and cosmology

International Nuclear Information System (INIS)

Lazarides, G.; Shafi, Q.

1983-01-01

By examining the behavior of supersymmetric grand unified theories (GUT's) in the very early universe we find two classes of realistic models. In one of them supersymmetry is broken at or near superheavy GUT scale. The cosmological implications of such models are expected to be similar to those of nonsupersymmetric GUT's. In the second class of models, the superheavy GUT scale is related to the supersymmetry-breaking scale in the manner of Witten. Two types of cosmological scenarios appear possible in this case, either with or without an intermediate (new) inflationary phase. They can be experimentally distinguished, since the former predicts an absence and the latter an observable number density of superheavy monopoles. A mechanism for generating baryon asymmetry in such models is pointed out
Applying the World Water and Agriculture Model to Filling Scenarios for the Grand Ethiopian Renaissance Dam

Energy Technology Data Exchange (ETDEWEB)

Villa, Daniel L. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Tidwell, Vincent C. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Passell, Howard D. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Roberts, Barry L. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

2016-11-01

The World Water and Agriculture Model has been used to simulate water, hydropower, and food sector effects in Egypt, Sudan, and Ethiopia during the filling of the Grand Ethiopian Renaissance Dam reservoir. This unique capability allows tradeoffs to be made between filling policies for the Grand Ethiopian Renaissance Dam reservoir. This Nile River Basin study is presented to illustrate the capacity to use the World Water and Agriculture Model to simulate regional food security issues while keeping a global perspective. The study uses runoff data from the Intergovernmental Panel for Climate Change Coupled Model Inter-comparison Project Phase 5 and information from the literature in order to establish a reasonable set of hydrological initial conditions. Gross Domestic Product and population growth are modelled exogenously based on a composite projection of United Nations and World Bank data. The effects of the Grand Ethiopian Renaissance Dam under various percentages of water withheld are presented.

Asymptotic expansion in the local limit theorem for the particle number in the grand canonical ensemble

International Nuclear Information System (INIS)

Pogosian, S.

1981-01-01

It is known that in the grand canonical ensemble (for the case of small density of particles) the fluctuations (approximately mod(Λ)sup(1/2)) in the particle number have an asymptotic normal distribution as Λ→infinity. A similar statement holds for the distribution of the particle number in a bounded domain evaluated with respect to the limiting Gibbs distribution. The author obtains an asymptotic expansion in the local limit theorem for the particle number in the grand canonical ensemble, by using the asymptotic expansion of the grand canonical partition function. The coefficients of this expansion are not constants but depend on the form of the domain Λ. More precisely, they are constant up to a correction which is small (for large Λ). The author obtains an explicit form for the second term of the asymptotic expansion in the local limit theorem for the particle number, and also gets the first correction terms for the coefficients of this expansion. (Auth.)
Final audit report of remedial action construction at the UMTRA Project, Grand Junction, Colorado, processing site

International Nuclear Information System (INIS)

1995-02-01

This final audit report (FAR) for remedial action at the Grand Junction, Colorado, Uranium Mill Tailings Remedial Action (UMTRA) Project processing site consists of a summary of the radiological surveillances/ audits, the quality assurance (QA) in-process surveillances, and the QA final close-out inspection performed by the US Department of Energy (DOE) and Technical Assistance Contractor (TAC). The FAR also summarizes other surveillances performed by the US Nuclear Regulatory Commission (NRC). To summarize, a total of one finding and 127 observations were noted during DOE/TAC audit and surveillance activities. The NRC noted general site-related observations during the OSCRs. Follow-up to responses required from MK-Ferguson for the DOE/TAC finding and observations indicated that all issues related to the Grand Junction processing site were resolved and closed out to the DOE's satisfaction. The NRC OSCRs resulted in no issues related to the Grand Junction processing site requiring a response from MK-Ferguson
Ensino de enfermagem no Rio Grande do Sul apartir de 1950 Enseñanza de enfermería en Rio Grande do Sul a partir del 1950 Teaching of nursing in Rio Grande do Sul in the 1950

Directory of Open Access Journals (Sweden)

Valéria Lamb Corbellini

2010-08-01

Full Text Available Essa pesquisa teve como objetivo analisar como o ensino de graduação na enfermagem, no Rio Grande do Sul construiu o seu saber, desde o primeiro curso, a partir da década de 1950. O estudo envolveu enfermeiras docentes que vivenciaram esse período da história e, para análise documental, foi utilizada a análise de discurso. Os dados indicam, dentre eles, o currículo mais integrado que busca articular teoria/prática sem fragmentação do saber e a relação ensino-aprendizagem, na qual professor e aluno são sujeitos desse processo.Esta investigación tuvo como objetivo analizar como la enseñanza de la pregrado de Enfermería en Río Grande do Sul construyó su saber, desde el primer curso, a partir de la década de 1950. El estudio integró enfermeras docentes que vivenciaron ese periodo de la historia y, para el análisis documental, fue utilizado el análisis del discurso.Los datos indican, entre ellos, el curriculum más integrado que busca articular teoría y práctica sin fragmentación del saber y la relación enseñanza aprendizaje, en la cuál el profesor y el alumno son sujetos de ese processo.The purpose of this research was to analyze how the undergraduate teaching of nursing in Rio Grande do Sul has constructed its knowledge, since the first course, as of the decade of 1950s. The survey has involved teaching nurses who have lived such period of our history, and the discourse analysis has been utilized for the documental analysis. The information data indicate, among them, the most integrated curriculum that seeks articulating theory/practice without fragmenting the knowledge and the teaching-learning relationship, wherein professors and students are subjects of such procedure.
A new corps of trained Grand-Aides has the potential to extend reach of primary care workforce and save money.

Science.gov (United States)

Garson, Arthur; Green, Donna M; Rodriguez, Lia; Beech, Richard; Nye, Christopher

2012-05-01

Because the Affordable Care Act will expand health insurance to cover an estimated thirty-two million additional people, new approaches are needed to expand the primary care workforce. One possible solution is Grand-Aides®, who are health care professionals operating under the direct supervision of nurses, and who are trained and equipped to conduct telephone consultations or make primary care home visits to patients who might otherwise be seen in emergency departments and clinics. We conducted pilot tests with Grand-Aides in two pediatric Medicaid settings: an urban federally qualified health center in Houston, Texas, and a semi-rural emergency department in Harrisonburg, Virginia. We estimated that Grand-Aides and their supervisors averted 62 percent of drop-in visits at the Houston clinic and would have eliminated 74 percent of emergency department visits at the Virginia test site. We calculated the cost of the Grand-Aides program to be $16.88 per encounter. That compares with current Medicaid payments of $200 per clinic visit in Houston and $175 per emergency department visit in Harrisonburg. In addition to reducing health care costs, Grand-Aides have the potential to make a substantial impact in reducing congestion in primary care practices and emergency departments.
Biodiversity and spatial distribution of epiphytic ferns on Alsophila setosa Kaulf. (Cyatheaceae) caudices in Rio Grande do Sul, Brazil.

Science.gov (United States)

Schmitt, J L; Windisch, P G

2010-08-01

The extractive exploitation of the tree fern Alsophila setosa Kaulf. alters forest formations and diminishes the availability of micro-habitat for epiphytes. A survey of epiphytic fern communities on A. setosa at 16 study sites in different forest formations in the State of Rio Grande do Sul, Brazil, documented the occurrence of 31 species representing 16 genera and six families. The greatest richness of species occurred in Polypodiaceae (39%) and in the genus Asplenium L. (22%). Habitual holoepiphyte was the predominant ecological category, representing 61% of the species. Similarity analysis demonstrated heterogeneity in the composition of the epiphytic ferns at the study sites and indicated that the vegetation type is not the main factor for floristic difference. The lowest total specific richness (5) was recorded for the seasonal deciduous forest site. The majority of the sites presented similar averages of phorophyte height and epiphyte richness per caudex. In 25% of the sites the height of the host plants presented significant correlation with specific richness. Considering that the majority of the epiphytes are habitual and that some of them occur exclusively or preferentially on tree ferns, the maintenance of these host plants in the vegetation is essential for the conservation of epiphytic species.
Biodiversity and spatial distribution of epiphytic ferns on Alsophila setosa Kaulf. (Cyatheaceae caudices in Rio Grande do Sul, Brazil

Directory of Open Access Journals (Sweden)

JL. Schmitt

Full Text Available The extractive exploitation of the tree fern Alsophila setosa Kaulf. alters forest formations and diminishes the availability of micro-habitat for epiphytes. A survey of epiphytic fern communities on A. setosa at 16 study sites in different forest formations in the State of Rio Grande do Sul, Brazil, documented the occurrence of 31 species representing 16 genera and six families. The greatest richness of species occurred in Polypodiaceae (39% and in the genus Asplenium L. (22%. Habitual holoepiphyte was the predominant ecological category, representing 61% of the species. Similarity analysis demonstrated heterogeneity in the composition of the epiphytic ferns at the study sites and indicated that the vegetation type is not the main factor for floristic difference. The lowest total specific richness (5 was recorded for the seasonal deciduous forest site. The majority of the sites presented similar averages of phorophyte height and epiphyte richness per caudex. In 25% of the sites the height of the host plants presented significant correlation with specific richness. Considering that the majority of the epiphytes are habitual and that some of them occur exclusively or preferentially on tree ferns, the maintenance of these host plants in the vegetation is essential for the conservation of epiphytic species.
Estimativa da evapotranspiração de referência em Campina Grande, Paraíba Estimate of reference evapotranspiration in the city of Campina Grande, Paraíba state, Brazil

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Francisco de A. N. Henrique

2007-12-01

Full Text Available Deste trabalho se objetivou estimar, através de uma fórmula empírica, a evapotranspiração de referência diária no município de Campina Grande, PB (EToT, utilizando-se a amplitude térmica diária. Estimou-se, também, a ETo diária usando-se os métodos de FAO-Penman-Monteith (EToPM, Hargreaves (EToH e Linacre (EToL, sendo depois correlacionados com a EToT proposta na pesquisa, por estação do ano; para isto foram coletados valores diários das temperaturas, umidade relativa do ar, radiação solar, precipitação, pressão atmosférica e velocidade do vento a 2 m da Estação Meteorológica Automática, instalada na Universidade Federal de Campina Grande (UFCG, no período de 1 de janeiro a 31 de dezembro de 2004. Tais valores foram registrados no intervalo de 10 min. Verificou-se que as correlações da EToT com EToH, obtiveram o melhor ajuste, cujos coeficientes foram: R² = 0,7882 (no ano, R² = 0,9796 (no verão, R² = 0,8253 (no outono, R² = 0,878 (no inverno e R² = 0,914 (na primavera. Conclui-se que os métodos de EToPM e EToL não se ajustaram bem para Campina Grande, PB, o que evidencia que a EToT poderá ser utilizada na forma proposta para estimativa da ETo desta localidade. Das equações propostas, a única restrição é o EToT para o verão caso em que se recomenda o uso da equação anual.The objective of this study was to estimate, using an empiric formula, the daily reference evapotranspiration in the city of Campina Grande, Paraiba State, Brazil (EToT, using the daily thermal amplitude. The ETo was also estimated using the methods of FAO-Penman-Monteith (EToPM, Hargreaves (EToH and Linacre (EToL, being correlated later with EToT proposed in this research by season. For that, daily values of temperature, air relative humidity, solar radiation, precipitation, atmospheric pressure and wind speed at 2 m, were taken using the Automatic Meteorological Station installed in the Universidade Federal de Campina Grande (UFCG
Review of freeboard: Grand Rapids Generating Station

Energy Technology Data Exchange (ETDEWEB)

Groeneveld, J.L.; Harding, W.B.; Bonin, D.V.; Fuchs, D.M. [Acres Manitoba Ltd., Winnipeg, MB (Canada); Warner, B.J. [Manitoba Hydro, Winnipeg, MB (Canada)

2001-10-01

Constructed during the period 1960-1965, the Grand Rapids Generating Station is a 472 MW hydroelectric station located approximately 400 kilometres northwest of Winnipeg, Manitoba, on the Saskatchewan River. An intake structure, four penstocks, a four-unit plus house unit powerhouse, wing walls, extensive dyke structures and a four-bay spillway are the components of the generating station. A little over ten years ago, the Manitoba Hydro Dam Safety Program was initiated. The program included a detailed dam safety review of the Grand rapids Generating Station. A potential deficiency in the freeboard allowance for several of the earthen dykes was revealed by the review process. The dam safety guidelines sponsored by the Canadian Dam Association were not met. The occurrence of a 1:1000 year wind event from the critical direction when the reservoir was at or near its full supply level was compounded by the analysis. The establishment of a wind and wave monitoring program was included in the deficiency studies commissioned. The objective was to confirm the empirical estimates concerning wave height, the development and usage of a two dimensional numerical wave model, and additional freeboard analyses to refine estimates of the recurrence interval of the current level of protection. A statistical Monte Carlo analysis was performed in the case of the estimates of the recurrence interval to determine the joint probabilities of seasonal variations in wind direction, wind speed, and reservoir level. The estimate of the actual risk of overtopping was therefore refined, and the details pertaining to the methodology and the conclusions of the analysis are all included in the paper. 15 refs., 4 tabs., 9 figs.
Perspective view over the Grand Canyon, Arizona

Science.gov (United States)

2001-01-01

This simulated true color perspective view over the Grand Canyon was created from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data acquired on May 12, 2000. The Grand Canyon Village is in the lower foreground; the Bright Angel Trail crosses the Tonto Platform, before dropping down to the Colorado Village and then to the Phantom Ranch (green area across the river). Bright Angel Canyon and the North Rim dominate the view. At the top center of the image the dark blue area with light blue haze is an active forest fire. ASTER is one of five Earth-observing instruments launched December 18, 1999, on NASA's Terra satellite. The instrument was built by Japan's Ministry of Economy, Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and the data products. The broad spectral coverage and high spectral resolution of ASTER provides scientists in numerous disciplines with critical information for surface mapping, and monitoring of dynamic conditions and temporal change. Example applications are: monitoring glacial advances and retreats; monitoring potentially active volcanoes; identifying crop stress; determining cloud morphology and physical properties; wetlands evaluation; thermal pollution monitoring; coral reef degradation; surface temperature mapping of soils and geology; and measuring surface heat balance. The U.S. science team is located at NASA's Jet Propulsion Laboratory, Pasadena, Calif. The Terra mission is part of NASA's Science Mission Directorate. Size: 5 km in foreground to 40 km Location: 36.3 degrees north latitude, 112 degrees west longitude Orientation: North-northeast at top Original Data Resolution: ASTER 15 meters Dates Acquired: May 12, 2000
Modelo de Negócio na Agroindústria do Leite no Estado do Rio Grande do SulThe Business Model in Agro industry of Milk in the Stare of Rio Grande do SulModelo de Negocio en la Agroindustria Lechera en el Estado de Rio Grande do Sul

Directory of Open Access Journals (Sweden)

SANTOS, Alessandra Santos dos

2008-12-01

Full Text Available RESUMOA Cadeia Produtiva do leite no Rio Grande do Sul, onde este produto se mostra como principal fonte de renda é representada por um grande número de pequenos e médios produtores. A eficiência dessas empresas reflete no desenvolvimento de suas regiões. Sendo assim, buscou-se verificar neste estudo como algumas agroindústrias de leite praticam a gestão de seus recursos para responder as demandas ambientais desse setor. Os resultados encontrados refletiram uma preocupação maior com os recursos físicos, entretanto estes não são sustentados pela imobilidade e pela heterogeneidade, podendo comprometer a sustentabilidade dos negócios no longo prazo.ABSTRACTThe Productive Chain of milk in the Rio Grande do Sul is represented by a small number of and medium producers, where this product is the main source of income. The efficiency of these companies reflects in the development of its regions. The goal of this research was to verify how some milk agro industry coordinates the resources to respond for the environment demand in this sector. The results showed a major attention with the physical resource. However, it is not sustainable due to its immobility and heterogeneity fact that can compromise sustainability of business in long run.RESUMENLa cadena productiva de la leche en Rio Grande del Sur, está representada por gran número de pequeños y medios productores, que tienen en este producto su principal fuente de ingresos. La eficiencia de estas empresas se manifiesta en el desarrollo de sus regiones. Por este motivo, este estudio trató de analizar, cómo algunas agroindustrias lecheras practican la gestión de sus recursos para responder a las demandas ambientales de ese sector. Los resultados encontrados demostraron que la principal preocupación radicaba en los recursos físicos, que aunque no se apoyan en la inmovilidad ni en la heterogeneidad, pueden perjudicar el desarrollo sostenible de los negocios a largo plazo.
First record of Phaethornis pretrei (Birds, Trochilidae in the State of Rio Grande do Sul, Brazil.

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Rodrigo Vargas Damiani

2009-06-01

Full Text Available There are 18 species of the genus Phaethornis, Swainson 1827 (Trochilidae in Brazil. In the state of Rio Grande do Sul, to date, only Phaethornis eurynome (Lesson, 1832 has been found. This work presents the first record of Phaethornis pretrei (Lesson & Delattre, 1839 in Rio Grande do Sul. The record was made in the urban perimeter of the town of Campinas do Sul. The species was documented in three ways by use of photography, video, and the recording of a spontaneous call.
General structure of the GRAND program for analysis of the data from a neutrino detector

International Nuclear Information System (INIS)

Zhigunov, V.P.; Kulikov, V.A.; Mukhin, S.A.; Naumov, V.L.; Platonov, V.G.; Spiridonov, A.A.

1985-01-01

The general structure of the GRAND (Global Result Analysis for Neutrino Detector) program used for geometrical and kinematic reconstruction of events recorded by a neutrino detector is considered. The detector consists of a calorimeter-target, a shower electron and γ detector and a magnetic spectrometer. While developing the GRAND program the multivariance (different types of the computers used), availability of various algorithms for solving the same problem, solution of separate particlular problems within the frames of one program are taken into account. The KERNLIB library and the HBOOK, ZBOOK, EPIO and FFREAD subroutine packages are used while creating the program as basic libraries
Invisible Success: Problems with the Grand Technological Innovation in Higher Education

Science.gov (United States)

Whitworth, Andrew

2012-01-01

This paper investigates a "grand" educational technology innovation through theoretical lenses inspired by Cervero and Wilson's (1994, 1998) work. Through taking this approach it is possible to show how ideas about the form of the innovation and perceptions of its ultimate "success" or "failure", varied between stakeholder groups. The project was…
Grand Challenges and Great Potential in Foreign Language Teaching and Learning

Science.gov (United States)

Hlas, Anne Cummings

2018-01-01

This article argues for the field of foreign languages to begin to identify and define our Grand Challenges, which are difficult yet solvable problems facing our field. Seeking answers to these challenges can provide new opportunities for collaboration and can spur new directions and innovation within language learning and teaching. Researchable…
Moraceae da Ilha Grande, Angra dos Reis, Rio de Janeiro, Brasil. Moraceae of Ilha Grande, Angra dos Reis, Rio de Janeiro, Brazil.

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Leandro Cardoso PEDERNEIRAS

2012-06-01

Full Text Available Este trabalho apresenta o levantamento florístico das espécies nativas de Moraceae ocorrentes na Ilha Grande, município de Angra dos Reis, Estado do Rio de Janeiro, Brasil. Com base na análise de coleções científicas, revisão da literatura e excursões a campo, foram registradas 11 espécies nativas: Brosimum guianense, Dorstenia arifolia, Ficus adhatodifolia, F. arpazusa, F. cyclophylla, F. gomelleira, F. nevesiae, F. organensis, F. pulchella, Sorocea hilarii, S. guilleminiana. Apresentamos, também, a chave de identificação para os táxons, descrições, ilustrações, informações sobre a distribuição geográfica e comentários sobre as espécies. This work presents a floristic survey of native species of Moraceae occurring in Ilha Grande, municipality of Angra dos Reis, Rio de Janeiro state, Brazil. It was based on analysis of herbarium collections, literature review and the field excursions, resulting in 11 native species: Brosimum guianense, Dorstenia arifolia, Ficus adhatodifolia, F. arpazusa, F. cyclophylla, F. gomelleira, F. nevesiae, F. organensis, F. pulchella, Sorocea hilarii, S. guilleminiana. We also present the identification key to the taxa, descriptions, illustrations, information about geographic distribution and comments on these species that enriched the results.
Proposed Grand Challenges in Geoscience Education Research: Articulating a Community Research Agenda

Science.gov (United States)

Semken, S. C.; St John, K. K.; Teasdale, R.; Ryker, K.; Riggs, E. M.; Pyle, E. J.; Petcovic, H. L.; McNeal, K.; McDaris, J. R.; Macdonald, H.; Kastens, K.; Cervato, C.

2017-12-01

Fourteen ago the Wingspread Project helped establish geoscience education research (GER) as an important research field and highlighted major research questions for GER at the time. More recently, the growth and interest in GER is evident from the increase in geoscience education research articles, the establishment of the NAGT GER Division, the creation of the GER Toolbox, an increase in GER graduate programs, and the growth of tenure-eligible GER faculty positions. As an emerging STEM education research field, the GER community is examining the current state of their research and considering the best course forward so that it can have the greatest collective impact on advancing teaching and learning in the geosciences. As part of an NSF-funded effort to meet this need, 45 researchers drafted priority research questions, or "Grand Challenges", that span 10 geoscience education research themes. These include research on: students' conceptual understanding of the solid and the fluid Earth, K-12 teacher preparation, teaching about Earth in the context of societal problems, access and success of underrepresented groups in the geosciences, spatial and temporal reasoning, quantitative reasoning and use of models, instructional strategies to improve geoscience learning, students' self-regulated learning, and faculty professional development and institutional change. For each theme, several Grand Challenges have been proposed; these have undergone one round of peer-review and are now ready for the AGU community to critically examine the proposed Grand Challenges and make suggestions on strategies for addressing them: http://nagt.org/nagt/geoedresearch/grand_challenges/feedback.html. We seek perspectives from geoscience education researchers, scholars, and reflective educators. It is our vision that the final outcomes of this community-grounded process will be a published guiding framework to (1) focus future GER on questions of high interest to the geoscience education
L’impossible seconde vie ? Le poids des standards éditoriaux et la résistance de la bande dessinée franco-belge au format de poche

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Sylvain Lesage

2011-07-01

Full Text Available Si le livre de poche a joué un rôle central dans la diffusion du patrimoine littéraire, la bande dessinée ne dispose pas de cet outil permettant la constitution d’un corpus de classiques aisément accessibles au plus grand nombre. En ceci, la bande dessinée constitue bien une véritable exception dans le champ éditorial français, par la quasi-absence de collections permettant de republier des classiques en format de poche. L’importance de l’image et l’impératif de lisibilité compliquent en effet le problème de l’adaptation du « grand format » vers le poche, mais demeurent insuffisants pour comprendre la réticence de la bande dessinée au poche. Le présent article propose un retour en arrière sur les expériences des années 1980-1990, afin de mieux cerner cette singularité éditoriale.
Limit order book and its modeling in terms of Gibbs Grand-Canonical Ensemble

Science.gov (United States)

Bicci, Alberto

2016-12-01

In the domain of so called Econophysics some attempts have been already made for applying the theory of thermodynamics and statistical mechanics to economics and financial markets. In this paper a similar approach is made from a different perspective, trying to model the limit order book and price formation process of a given stock by the Grand-Canonical Gibbs Ensemble for the bid and ask orders. The application of the Bose-Einstein statistics to this ensemble allows then to derive the distribution of the sell and buy orders as a function of price. As a consequence we can define in a meaningful way expressions for the temperatures of the ensembles of bid orders and of ask orders, which are a function of minimum bid, maximum ask and closure prices of the stock as well as of the exchanged volume of shares. It is demonstrated that the difference between the ask and bid orders temperatures can be related to the VAO (Volume Accumulation Oscillator), an indicator empirically defined in Technical Analysis of stock markets. Furthermore the derived distributions for aggregate bid and ask orders can be subject to well defined validations against real data, giving a falsifiable character to the model.
Monocyclic supracrustals at far west of Rio Grande do Norte, in Brazil

International Nuclear Information System (INIS)

Sa, E.F.J. de; Macedo, M.H.F.; Sa, J.M.

1986-01-01

A geochronological study of supracrustals and intrusive rocks from Rio Grande do Norte, in Brazil, is presented. Leucogranites and felsic metavolcanics were dated by Rb-Sr method. A summary of geologic relationship is given to supply the geochronological interpretation. (M.C.K.) [pt
Caracterização geral do Estado do Rio Grande do Sul

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Amneris Morschheiser Cortazzi

2014-05-01

Full Text Available Constitui-se de informações referentes à posição geográfica, área, população, relevo, clima, vegetação, hidrografia, entre outros elementos, referentes ao Estado do Rio Grande do Sul.

Predictive Temperature Equations for Three Sites at the Grand Canyon

Science.gov (United States)

McLaughlin, Katrina Marie Neitzel

Climate data collected at a number of automated weather stations were used to create a series of predictive equations spanning from December 2009 to May 2010 in order to better predict the temperatures along hiking trails within the Grand Canyon. The central focus of this project is how atmospheric variables interact and can be combined to predict the weather in the Grand Canyon at the Indian Gardens, Phantom Ranch, and Bright Angel sites. Through the use of statistical analysis software and data regression, predictive equations were determined. The predictive equations are simple or multivariable best fits that reflect the curvilinear nature of the data. With data analysis software curves resulting from the predictive equations were plotted along with the observed data. Each equation's reduced chi2 was determined to aid the visual examination of the predictive equations' ability to reproduce the observed data. From this information an equation or pair of equations was determined to be the best of the predictive equations. Although a best predictive equation for each month and season was determined for each site, future work may refine equations to result in a more accurate predictive equation.
In vitro multiplication of banana (Musa sp.) cv. Grand Naine | Ahmed ...

African Journals Online (AJOL)

A micropropagation method is described for banana (Musa Spp.) Cv. Grand Naine. Suckers were surface sterilized with HgCl2 (0.1%) for 6 min which gave minimum contamination with maximum culture establishment. Of various treatment combinations, Murashige and Skoog (MS) medium + BAP 4.00 mg/l with IAA 2.00 ...
76 FR 17541 - Drawbridge Operation Regulation; Mermentau River, Grand Chenier, LA

Science.gov (United States)

2011-03-30

... temporary deviation from the regulation governing the operation of the SR 82 swing span bridge across the... from the operating schedule of the swing span bridge across the Mermentau River at mile 7.1 in Grand... Sea Level. Vessels are able to transit under the bridge during operations. There is an alternate...
RiSA: A Science Festival for the Bilingual and Bicultural Rio Grande Valley

Science.gov (United States)

Key, Joey Shapiro; Torres, Cristina; Stone, Robert

2014-03-01

The Rio Grande Science and Arts (RiSA) Festival organized by the Center for Gravitational Wave Astronomy (CGWA) at the University of Texas at Brownsville (UTB) will use a wide variety of artforms to bring physics and science topics to the bilingual and bicultural population of the Rio Grande Valley of South Texas. The science and art faculty at UTB will partner with art and education professionals to create an annual community event celebrating science though art. Music, dance, poetry, and visual arts will headline the festival activities. Festival events and products will be produced in both English and Spanish to attract and inform the bilingual local community. The RiSA Festival is supported by the Science Festival Alliance and the Sloan Foundation. Supported by the Science Festival Alliance and the Sloan Foundation.
US Department of Energy Grand Junction Projects Office Remedial Action Project, final report of the decontamination and decommissioning of Building 36 at the Grand Junction Projects Office Facility

International Nuclear Information System (INIS)

Widdop, M.R.

1996-08-01

The U.S. Department of Energy (DOE) Grand Junction Projects Office (GJPO) occupies a 61.7-acre facility along the Gunnison River near Grand Junction, Colorado. This site was contaminated with uranium ore and mill tailings during uranium refining activities of the Manhattan Engineer District and during pilot milling experiments conducted for the U.S. Atomic Energy Commission's domestic uranium procurement program. The DOE Defense Decontamination and Decommissioning Program established the GJPO Remedial Action Project to clean up and restore the facility lands, improvements, and the underlying aquifer. The site contractor for the facility, Rust Geotech, also is the remedial action contractor. Building 36 was found to be radiologically contaminated and was demolished in 1996. The soil beneath the building was remediated in accordance with identified standards and can be released for unlimited exposure and unrestricted use. This document was prepared in response to a DOE request for an individual final report for each contaminated GJPO building
US Department of Energy Grand Junction Projects Office Remedial Action Project. Final report of the decontamination and decommissioning of Building 52 at the Grand Junction Projects Office Facility

International Nuclear Information System (INIS)

Krabacher, J.E.

1996-08-01

The U.S. Department of Energy (DOE) Grand Junction Projects Office (GJPO) occupies a 61.7-acre facility along the Gunnison River near Grand Junction, Colorado. This site was contaminated with uranium ore and mill tailings during uranium refining activities of the Manhattan Engineer District and during pilot milling experiments conducted for the U.S. Atomic Energy Commission's domestic uranium procurement program. The DOE Defense Decontamination and Decommissioning Program established the GJPO Remedial Action Project to clean up and restore the facility lands, improvements, and the underlying aquifer. The site contractor for the facility, Rust Geotech, also was the remedial action contractor. Building 52 was found to be radiologically contaminated and was demolished in 1994. The soil area within the footprint of the building has been remediated in accordance with the identified standards and the area can be released for unlimited exposure and unrestricted use. This document was prepared in response to a DOE request for an individual final report for each contaminated GJPO building
Ecosystem level assessment of the Grand Calumet Lagoons, Indiana Dunes National Lakeshore

Energy Technology Data Exchange (ETDEWEB)

Stewart, P.M. [National Biological Service, Porter, IN (United States)

1995-12-31

The Grand Calumet Lagoons make up the eastern section of the Grand Calumet River (GCR), Indiana Harbor and Ship Canal and nearshore Lake Michigan Area of Concern (AOC). The GCR AOC is the only one of the 42 Great Lakes Areas of Concern identified by the International Joint Commission with all 14 designated uses classified as impaired. Included within the boundaries of the Indiana Dunes National Lakeshore (INDU), is the central section of the Grand Calumet Lagoons. A number of biotic and abiotic factors were tested to determine the effects of an industrial landfill that borders the lagoons to assess the potential impact on park resources. Analysis included water quality testing, assessments of macroinvertebrate, fish, algae and aquatic plant communities and contaminant concentrations in water, sediment and plant and fish tissue. Surface water testing found very few contaminants, but significantly higher nutrient levels were found in the water column closest to the landfill. Macroinvertebrate, aquatic plant and fish communities all showed significant impairment in relationship to their proximity to the landfill. Aquatic plant growth habit became limited next to the landfill with certain growth habits disappearing entirely. Aquatic plants collected close to the landfill had high concentrations of several heavy metals in their stems and shoots. Using the index of biotic integrity (IBI), fish community assessment indicated impairment in the areas adjacent to the landfill. Sediments tested at one site had over 12% polycyclic aromatic hydrocarbons (PAH) and carp (Cyprinus carpio) collected from this site had whole fish tissue concentrations over 1 mg/kg PAH.
Monitoring Fine Sediment; Grande Ronde and John Day Rivers, 2000 Annual Report.

Energy Technology Data Exchange (ETDEWEB)

Rhodes, Jonathan J.; Greene, M. Jonas; Purser, Michael D. (Columbia River Inter-Tribal Fish Commission, Portland, OR)

2001-01-01

Fine sediment in spawning substrate has a major effect on salmon survival from egg to smolt. Basin-wide restoration plans have established targets for fine sediment levels in spawning habitat. The project was initiated to monitor surface fine sediment levels and overwinter intrusion of fine sediment in spring chinook salmon spawning habitat in the North Fork John Day (NFJDR) and Grande Ronde Rivers, for five years. The project is also investigating the potential relationship between surface fine levels and overwinter sedimentation. It will provide data to assess trends in substrate conditions in monitored reaches and whether trends are consistent with efforts to improve salmon habitat conditions. The data on the magnitude of overwinter sedimentation will also be used to estimate salmon survival from egg to emergence. In Sept. 1998, 1999, and Aug. 2000, sites for monitoring overwinter sedimentation were established in salmon spawning habitat in the upper Grande Ronde River, Catherine Creek (a Grande Ronde tributary), the North Fork John Day River (NFJDR), and Granite Creek (a NFJDR tributary). Surface fine sediment levels were measured in these reaches via the grid method and visually estimated to test the relative accuracy of these two methods. In 1999 and 2000, surface fine sediment was also estimated via pebble counts at selected reaches to allow comparison of results among the methods. Overwintering substrate samples were collected in April 1999 and April-May 2000 to estimate the amount of overwinter sedimentation in clean gravels in spawning habitat. Monitoring methods and locations are described.
Magnetostratigraphy of the Grande Ronde Basalt Pasco Basin, Washington

International Nuclear Information System (INIS)

Packer, D.R.; Petty, M.H.

1979-01-01

The paleomagnetic measurements of samples from the holes sampled have shown that there are four magnetic correlation lines, between adjacent flows in holes that have distinctly different mean stratigraphic inclinations, and two magnetic polarity boundaries that can be used for magnetic correlation in the Grande Ronde Basalt in the Pasco Basin. The results of paleomagnetic measurements of samples from the Wanapum Basalt and Saddle Mountains Basalt indicate that the potential for magnetostratigraphic correlation in these sequences is also good
Bols Grand Prix 2014 selgitas parima baarmenite võistkonna ja parima Bols kokteili

Index Scriptorium Estoniae

2014-01-01

12. veebruaril ööklubis Venus Club toimunud 17. Bols Grand Prix võistkondliku võistluse võitis Butterfly Lounge'i võistkond Tallinnast ja parima Bols kokteili tiitli sai Getter Laur Tartust Kivi baarist
Dermatofitoses humanas no interior do Rio Grande do Sul no período 1988-1992 Human dermatophytoscs in Rio Grande do Sul (Brazil: 1988-1992

Directory of Open Access Journals (Sweden)

Jorge O. Lopes

1994-04-01

Full Text Available O espectro dos dermatófitos na região central do Rio Grande do Sul demonstrou importante variação na frequência das espécies no período 1988-1992. As espécies antropofilicas Trichophyton rubrum, T. mentagrophytes var. interdigitale e Epidermophyton floccosum diminuíram em frequência, enquanto as espécies zoofílicas Microsporum canis e T. mentagrophytes var. mentagrophytes apresentaram sensível aumento. São comentadas as alterações na relação parasita/hospedeiro em função das alterações na morfología dos agentes e a dificuldade do isolamento destes agentes em cultivo.The relative frequency of the dermatophytes in the central region of Rio Grande do Sul, Brazil, have changed during a survey carried out from 1988-1992. The frequency of the antropophilic species T. rubrum, T. mentagrophytes var. interdigitale and E.floccosum have decreased in comparison with the zoophilic species M. canis and T. mentagrophytes var. mentagrophytes. The relationship host/parasite and the low rate growth of dermatophytes in culture are discussed.
Differential compaction mechanism for earth fissures near Casa Grande, Arizona.

Science.gov (United States)

Jachens, R.C.; Holzer, T.L.

1982-01-01

Precise gravity measurements indicate that earth fissures or tension cracks caused by ground-water withdrawal within a 10km2 area SE of Casa Grande are associated with relief on the buried interface between the alluvial aquifer and underlying bedrock. These relations suggest that the fissures are forming in response to localized differential compaction caused by localized variations of aquifer-system thickness. -from Authors
Flood disaster preparedness: a retrospect from Grand Forks, North Dakota.

Science.gov (United States)

Siders, C; Jacobson, R

1998-01-01

Natural disasters often come without warning. The clinical, financial, and business risks can be enormous. Grand Forks' (ND) healthcare systems experienced a flooding disaster of unprecedented proportions in April of 1997. Planned and practiced disaster and evacuation procedures can significantly reduce a healthcare facilities' risk to life, health, and safety. This article retrospectively analyzes disaster preparation and the complete evacuation of the facilities' patients.
Introduction to Grand Unified Theories. 12

International Nuclear Information System (INIS)

Wali, K.C.

1989-01-01

This chapter presents an introduction into Grand Unified Theories. After a discussion of the general features to be expected in any such theory, and of the motivations for them, a detailed presentation of SU(5) theory is given. The group structures, particle multiplets, gauge and Higgs bosons are explained. The two stages of spontaneous symmetry breaking via the Higgs model, are calculated individually and in combination. Fermion mass matrices and relations between quark and lepton masses are derived. predictions of SU(5) theory, calculated using renormalization group methods, are derived. The chapter ends with discussions that bring together particle physics and cosmology, including the baryon asymmetry problem, phase transitions in the very early universe, and singularities like domain walls, vortex lines and monopoles. (author). 9 refs.; 4 figs.; 5 tabs
Protein fraction and digestibility of marandu, xaraes and campo grande grasses in monocropping and intercropping systems under different sowing methods - doi: 10.4025/actascianimsci.v35i1.15134

Directory of Open Access Journals (Sweden)

Welma Santos Crunivel

2013-01-01

Full Text Available A study was carried out to evaluate the protein fraction and in vitro dry matter digestibility of marandu, xaraes grasses and campo grande in monocropping and intercropping systems under different planting methods, for a period of two years. The experimental design was a complete randomized block with four replications. The treatments consisted of the following crop systems: campo grande in monocropping; xaraés grass in monocropping; marandu grass in monocropping; xaraés intercropped with campo grande in rows; xaraés intercropped with campo grande, broadcast; marandu grass intercropped with campo grande in rows; and marandu intercropped with campo grand, broadcast. The evaluations were conducted for two years, consisting of seasonal evaluations (autumn, winter, spring and summer in the same plots, with repeated measurements over time. The results showed that xaraes and marandu grasses were similar between crop systems, indicating that both can be intercropped with campo grande. The intercropping of campo grande with Brachiaria brizantha cultivars improved the protein fraction and digestibility. The row method of planting provided better protein fractions and in vitro dry matter digestibility.
De Grande Mosquée de Paris tussen eerbetoon en propaganda

NARCIS (Netherlands)

Spaan, S.J.

2015-01-01

In het hart van Parijs, tegenover de Jardin des Plantes, staat de Grande Mosquée de Paris, geopend in 1926. In elke toeristische gids staat dat de muntthee en baklava in het café heerlijk zijn en dat de moskee bedoeld was als eerbetoon aan de islamitische soldaten die in de Eerste Wereldoorlog hun
Special signalizing of the Grande River crossing with the OSBRA pipeline

Energy Technology Data Exchange (ETDEWEB)

Araujo, Adriano C.; Luz, Marcelo Pedroso da; Castro, Newton C. de; Spagnolo, Rodrigo A. [TRANSPETRO, Rio de Janeiro, RJ (Brazil); Silva Junior, Fernando C. Carneiro da [PETROBRAS, Rio de Janeiro, RJ (Brazil)

2009-07-01

This paper presents the experience acquired by PETROBRAS Transporte S.A., TRANSPETRO, signaling the crossing of Sao Paulo - Brasilia Pipeline, OSBRA, with the Grande River, important brazilian river that has in this cross section 400 m in width and 10 m of average depth. In sub aquatic inspections carried through by divers to confirm the pipeline's silting condition, evidences of basin format dredging near the pipeline have been identified and, even though it was not sufficient to expose de pipeline, has reduced its covering significantly. This site is an important area of sand extraction, and although the intense works of awareness of local dredging companies to not operate in the pipeline area, TRANSPETRO was surprised by the evidences. In testimonials, local dredge operators complained about difficulties in identifying the pipeline position in nightly operations. Expecting to improve the operational security in the pipeline crossing, a joint project was developed by TRANSPETRO, Brazilian Navy and the dredging companies, with the intention to signal safe area around the submerged pipeline, avoiding dredge operations with the installation of polyethylene floating buoys equipped with night signaling kits and fixed by concrete anchors. Although it was technically simple, the unprecedented proposal in Brazil increased safety in the pipeline operations and made them much safer for the local population and for the environment, in one of the biggest water resources of the Southeastern region of Brazil. (author)
Grande Sertão: Veredas – literatura e memória

Directory of Open Access Journals (Sweden)

Márcio Henrique Muraca

2012-04-01

Full Text Available Muito já se escreveu sobre Grande Sertão: Veredas, sobretudo a respeito do conceito de sertão como microcosmo, bem como, em termos de linguagem, da técnica narrativa do monólogo-diálogo. Neste artigo, pretende-se investigar os elementos de memória presentes na obra. O produto da tentativa do narrador-protagonista Riobaldo de entender o sentido de sua vida ao rememorar eventos tem como resultado um tipo de relato memorialístico. Ainda que tais eventos sejam ficção, Guimarães Rosa os situa em um plano temporal e espacial concretos, o que permite revelar um enquadramento social a partir dessa “memória individual” de Riobaldo enlaçada à memória coletiva do sertão. O diálogo teórico abarca dois textos básicos, o de Eduardo F. Coutinho, sobre Grande Sertão: Veredas, e os estudos de Marina Maluf sobre memória.
Scientific Grand Challenges: Crosscutting Technologies for Computing at the Exascale - February 2-4, 2010, Washington, D.C.

Energy Technology Data Exchange (ETDEWEB)

Khaleel, Mohammad A.

2011-02-06

The goal of the "Scientific Grand Challenges - Crosscutting Technologies for Computing at the Exascale" workshop in February 2010, jointly sponsored by the U.S. Department of Energy’s Office of Advanced Scientific Computing Research and the National Nuclear Security Administration, was to identify the elements of a research and development agenda that will address these challenges and create a comprehensive exascale computing environment. This exascale computing environment will enable the science applications identified in the eight previously held Scientific Grand Challenges Workshop Series.
Salinity Trends in the Upper Colorado River Basin Upstream From the Grand Valley Salinity Control Unit, Colorado, 1986-2003

Science.gov (United States)

Leib, Kenneth J.; Bauch, Nancy J.

2008-01-01

In 1974, the Colorado River Basin Salinity Control Act was passed into law. This law was enacted to address concerns regarding the salinity content of the Colorado River. The law authorized various construction projects in selected areas or 'units' of the Colorado River Basin intended to reduce the salinity load in the Colorado River. One such area was the Grand Valley Salinity Control Unit in western Colorado. The U. S. Geological Survey has done extensive studies and research in the Grand Valley Salinity Control Unit that provide information to aid the U.S. Bureau of Reclamation and the Natural Resources Conservation Service in determining where salinity-control work may provide the best results, and to what extent salinity-control work was effective in reducing salinity concentrations and loads in the Colorado River. Previous studies have indicated that salinity concentrations and loads have been decreasing downstream from the Grand Valley Salinity Control Unit, and that the decreases are likely the result of salinity control work in these areas. Several of these reports; however, also document decreasing salinity loads upstream from the Grand Valley Salinity Control Unit. This finding was important because only a small amount of salinity-control work was being done in areas upstream from the Grand Valley Salinity Control Unit at the time the findings were reported (late 1990?s). As a result of those previous findings, the U.S. Bureau of Reclamation entered into a cooperative agreement with the U.S. Geological Survey to investigate salinity trends in selected areas bracketing the Grand Valley Salinity Control Unit and regions upstream from the Grand Valley Salinity Control Unit. The results of the study indicate that salinity loads were decreasing upstream from the Grand Valley Salinity Control Unit from 1986 through 2003, but the rates of decrease have slowed during the last 10 years. The average rate of decrease in salinity load upstream from the Grand Valley

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