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Sample records for relation lineaire sans

  1. The San Andreas fault experiment. [gross tectonic plates relative velocity

    Science.gov (United States)

    Smith, D. E.; Vonbun, F. O.

    1973-01-01

    A plan was developed during 1971 to determine gross tectonic plate motions along the San Andreas Fault System in California. Knowledge of the gross motion along the total fault system is an essential component in the construction of realistic deformation models of fault regions. Such mathematical models will be used in the future for studies which will eventually lead to prediction of major earthquakes. The main purpose of the experiment described is the determination of the relative velocity of the North American and the Pacific Plates. This motion being so extremely small, cannot be measured directly but can be deduced from distance measurements between points on opposite sites of the plate boundary taken over a number of years.

  2. CULTURAL FACTORS RELATED TO SMOKING IN SAN FRANCISCO’S IRISH BARS

    OpenAIRE

    Satterlund, Travis D.; Antin, Tamar M.J.; Lee, Juliet P; Roland S. Moore

    2009-01-01

    California’s Smoke-Free Workplace Act was extended to include bars in 1998. While the majority of bars in the state have become smoke free, in many bars patrons and staff continue to smoke despite the law. The authors present findings from a study which assessed cultural factors related to continued smoking in bars in the city of San Francisco. In bars serving primarily Irish migrants, tight-knit relations within the local Irish bar community together with a reluctance to be the first Irish b...

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

    Directory of Open Access Journals (Sweden)

    Conti Bruno

    2009-07-01

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

  4. Quantitative analysis and relevant features of the scientific literature related to SAXS and SANS

    International Nuclear Information System (INIS)

    We present and discuss here numerical information derived from a systematic searching of scientific papers related to SAXS and SANS published in indexed journals - from 1945 until nowadays - recorded by the Web of Science Data Bank (WoS). We have detected interesting features regarding the time dependence of the number of papers/year, N(t), indicating the existence of three well-defined periods of historical evolution with rather well-defined boundaries. All three periods exhibit a positive and approximately linear variation of N(t) but, at the two transitions between periods, the rate of growth exhibits clear and strong increases. Differences of the historical evolutions in the numbers of papers/year related to SAXS and to SANS were established. The different behaviours regarding the numbers of papers/year related to SAXS and to SANS and the existence of three different and well defined periods for N(t) can be qualitatively understood as a consequence of the progressive and increasing availability along the last three decades of very brilliant synchrotrons, last generation commercial X-ray sources, new neutron facilities, powerful computers and novel theoretical approaches for SAS data analysis. The rates of growth in the number of papers/year published by authors from a set of different countries are approximately constant along the last two decades. For other countries we have detected a slowing down effect in the number of papers/year while a clear acceleration could be noticed for the production of SAS papers by authors from several emerging countries. These opposite trends compensate in such a way that the number of SAS (SAXS+SAXS) articles published per year all around the world maintained a vigorous linear growth - during more than 20 years - at a constant rate of 60 papers/year, without any indication of eventual saturation. The observed distribution of articles among different journals indicates that a very high fraction of the volume of SAS research is focused to the structure of soft matter.

  5. Lithofacies characterization related to the Raigon Formation located in the southern area of the San Jose Department

    International Nuclear Information System (INIS)

    In this work the different lithofacies characterization related to the Raigon Formation, located in the southern area of the San Jose Department, is exposed supported by surface and subsurface data. Six stratigraphical sections were constructed considering lithological borehole descriptions to the aim of making a contribution on the spatial distribution, thickness, disposition, lithofaciological variations of this Formation and its stratigraphical relationships with other units

  6. Distance between homes and exercise facilities related to frequency of exercise among San Diego residents.

    OpenAIRE

    Sallis, J F; Hovell, M. F.; Hofstetter, C R; Elder, J. P.; Hackley, M; Caspersen, C J; Powell, K. E.

    1990-01-01

    Although personal determinants of exercise behavior have been studied extensively, few investigators have examined the influence of the physical environment on exercise habits. A random sample of 2,053 residents of San Diego, CA, were surveyed regarding exercise habits and other variables. A total of 385 exercise facilities in San Diego were classified into categories of either free or pay. After the addresses of respondents and facilities were located on a grid-map and coded, the density of ...

  7. Mesure et retroaction sur un qubit multi-niveaux en electrodynamique quantique en circuit non lineair

    Science.gov (United States)

    Boissonneault, Maxime

    L'electrodynamique quantique en circuit est une architecture prometteuse pour le calcul quantique ainsi que pour etudier l'optique quantique. Dans cette architecture, on couple un ou plusieurs qubits supraconducteurs jouant le role d'atomes a un ou plusieurs resonateurs jouant le role de cavites optiques. Dans cette these, j'etudie l'interaction entre un seul qubit supraconducteur et un seul resonateur, en permettant cependant au qubit d'avoir plus de deux niveaux et au resonateur d'avoir une non-linearite Kerr. Je m'interesse particulierement a la lecture de l'etat du qubit et a son amelioration, a la retroaction du processus de mesure sur le qubit de meme qu'a l'etude des proprietes quantiques du resonateur a l'aide du qubit. J'utilise pour ce faire un modele analytique reduit que je developpe a partir de la description complete du systeme en utilisant principalement des transfprmations unitaires et une elimination adiabatique. J'utilise aussi une librairie de calcul numerique maison permettant de simuler efficacement l'evolution du systeme complet. Je compare les predictions du modele analytique reduit et les resultats de simulations numeriques a des resultats experimentaux obtenus par l'equipe de quantronique du CEASaclay. Ces resultats sont ceux d'une spectroscopie d'un qubit supraconducteur couple a un resonateur non lineaire excite. Dans un regime de faible puissance de spectroscopie le modele reduit predit correctement la position et la largeur de la raie. La position de la raie subit les decalages de Lamb et de Stark, et sa largeur est dominee par un dephasage induit par le processus de mesure. Je montre que, pour les parametres typiques de l'electrodynamique quantique en circuit, un accord quantitatif requiert un modele en reponse non lineaire du champ intra-resonateur, tel que celui developpe. Dans un regime de forte puissance de spectroscopie, des bandes laterales apparaissent et sont causees par les fluctuations quantiques du champ electromagnetique intra-resonateur autour de sa valeur d'equilibre. Ces fluctuations sont causees par la compression du champ electromagnetique due a la non-linearite du resonateur, et l'observation de leur effet via la spectroscopie d'un qubit constitue une premiere. Suite aux succes quantitatifs du modele reduit, je montre que deux regimes de parametres ameliorent marginalement la mesure dispersive d'un qubit avec un resonateur lineaire, et significativement une mesure par bifurcation avec un resonateur non lineaire. J'explique le fonctionnement d'une mesure de qubit dans un resonateur lineaire developpee par une equipe experimentale de l'Universite de Yale. Cette mesure, qui utilise les non-linearites induites par le qubit, a une haute fidelite, mais utilise une tres haute puissance et est destructrice. Dans tous ces cas, la structure multi-niveaux du qubit s'avere cruciale pour la mesure. En suggerant des facons d'ameliorer la mesure de qubits supraconducteurs, et en decrivant quantitativement la physique d'un systeme a plusieurs niveaux couple a un resonateur non lineaire excite, les resultats presentes dans cette these sont pertinents autant pour l'utilisation de l'architecture d'electrodynamique quantique en circuit pour l'informatique quantique que pour l'optique quantique. Mots-cles: electrodynamique quantique en circuit, informatique quantique, mesure, qubit supraconducteur, transmon, non-linearite Kerr

  8. Programmation Lin\\'eaire, une nouvelle approche / Novel way in linear Programming

    OpenAIRE

    Faye, I.; Lavallée, I.; Ngom, M.; Seck, D.; Sy, A.

    2010-01-01

    R\\'esum\\'e Apr\\`es un bref aper\\c{c}u permettant de situer notre travail, nous proposons une nouvelle voie pour aborder la programmation lin\\'eaire en proposant un algorithme \\'elabor\\'e \\`a partir d'une id\\'ee simple qui permet d'obtenir une solution aussi approch\\'ee que voulu par translation dichotomique d'un hyperplan de l'espace des solutions. Abstract After a short course in order to situate our work, we propose a new way to study linear programming and we give a pro...

  9. Los municipios de San Gabriel Chilac y San Juan Teotihuacan ante la federalización de las aguas, 1888-1960 / Les municipalités de San Gabriel Chilac et San Juan Teotihuacan face à la fédéralisation des eaux, 1888-1960 / The Municipalities of San Gabriel Chilac and San Juan Teotihuacan in Relation to the Federalization of Water, 1888-1960

    Scientific Electronic Library Online (English)

    Jesús Edgar, Mendoza García.

    2013-11-01

    Full Text Available A partir de un análisis comparativo sobre dos casos de pequeña irrigación en los municipios de San Gabriel Chilac en Puebla y San Juan Teotihuacan en el Estado de México, se muestra la diversidad de resultados que generó la política de centralización sobre el recurso hídrico que antes controlaba el [...] ayuntamiento. De igual modo, se explican los factores socioeconómicos regionales que llevaron al gobierno local y a los actores sociales a negociar, adaptarse o resistir a tales políticas federales que disminuían sus prerrogativas, para finalmente señalar quienes fueron los beneficiarios directos del proceso. Abstract in english Based on a comparative analysis of two cases of small-scale irrigation in the municipalities of San Gabriel Chilac (Puebla) and San Juan Teotihuacan (State of Mexico), this article shows the diverse results generated by the policy designed to centralize dominion over the hydric resources previously [...] controlled by local governments (ayuntamientos). In addition, it explains the regional socioeconomic factors that led local governments and social actors to negotiate, adapt to, or resist, those federal policies that constrained their prerogatives. Finally, it identifies the individuals who directly benefitted from this process.

  10. The Migration Experience as It Relates to Cargo Participation in San Miguel Cuevas, Oaxaca

    Directory of Open Access Journals (Sweden)

    Silvia Ventura Luna

    2010-01-01

    Full Text Available Este artículo ofrece un recuento de los continuos efectos de la migración sobre el gobierno municipal y la organización de una comunidad mixteca: San Miguel Cuevas, Oaxaca, México. Legalmente constituida como un autogobierno municipal indígena, en décadas recientes, Cuevas ha sido reconstituida como una comunidad transnacional, cuyos ciudadanos radican principalmente en ella y en Fresno, California. La creciente circularidad y permanente migración de Cuevas a Estados Unidos desde finales de los ochenta, así como los usos y costumbres impuestos por la vida comunitaria en Cuevas, pone a sus varones migrantes en una situación complicada para cumplir sus obligaciones familiares y comunitarias -cívicas y ceremoniales (cargos-, que se requieren para mantener su ciudadanía y residencia en Cuevas y tener acceso a tierras comunales y otros recursos.

  11. Safety evaluation report related to the full-term operating license for San Onofre Nuclear Generating Station, Unit 1 (Docket No. 50-206)

    International Nuclear Information System (INIS)

    The safety evaluation report for the full-term operating license application filed by the Southern California Edison Company and the San Diego Gas and Electric Company has been prepared by the Office of Nuclear Reactor Regulation of the US Nuclear Regulatory Commission. The facility is located in San Diego County, California. The staff has evaluated the issues related to the conversion of the provisional operating license to a full-term operating license and concluded that the facility can continue to be operated without endangering the health and safety of the public following the license conversion. 43 refs., 3 figs., 3 tabs

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

    Scientific Electronic Library Online (English)

    Hugo, Spinelli; Marcio, Alazraqui; Diego, Galeano; Sabrina, Calandrón.

    2012-12-01

    Full Text Available Este artículo ofrece los resultados de un estudio comparado de dos municipios: Venado Tuerto y San Rafael de la República Argentina, que presentaron tendencias diferentes en relación a las tasas de homicidios por armas de fuego. La metodología combinó dos estrategias de análisis: por un lado, entrev [...] istas semi-estructuradas con informantes clave (funcionarios municipales y provinciales en distintas áreas de la gestión, y referentes de organizaciones no gubernamentales) y, por el otro, grupos focales con actores vinculados a la atención médica, la educación y las instituciones religiosas. Los resultados sugieren una distancia muy corta entre las ciudades en las cuales las tasas han aumentado y aquellas en las que han disminuido. La diferencia más significativa es que en Venado Tuerto se encontró una mayor fragilidad en las instituciones públicas, por la falta de articulación entre las mismas. En tanto en San Rafael, los actores entrevistados atribuyen el bajo nivel de conflictividad a una red de prevención de violencias en la cual se coordinan agencias provinciales y municipales. Sin tratarse, ni Venado Tuerto, ni San Rafael, de ciudades violentas en los niveles latinoamericanos más truculentos, ambas muestran resultados diferentes que apuntan directamente a la posibilidad de juntar a las instituciones en un entramado de conversaciones, acuerdos y políticas en conjunto. Abstract in english This article presents the results of a comparative study of two Argentinian cities, namely Venado Tuerto and San Rafael, which revealed different trends in the rates of firearm-related homicides. The methodology combined two strategies of analysis: semi-structured interviews with key informants (mun [...] icipal and provincial government agents in different areas of management, as well as members of non-governmental organizations) and focus groups with actors involved in medical care, education, and religious institutions. The results suggest little difference between cities in which rates have increased and those in which rates have decreased. The most significant difference was that in Venado Tuerto a greater fragility of public institutions was observed due to the lack of articulation between such institutions. In San Rafael, the actors interviewed attribute the low level of conflict to a violence prevention network in which provincial and municipal agencies interact. Although neither city is violent at the most critical Latin American levels, the different results shown in Venado Tuerco and San Rafael indicate the possibility of bringing institutions together in a joint framework of conversations, agreements and policies.

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

    Directory of Open Access Journals (Sweden)

    Hugo Spinelli

    2012-12-01

    Full Text Available Este artículo ofrece los resultados de un estudio comparado de dos municipios: Venado Tuerto y San Rafael de la República Argentina, que presentaron tendencias diferentes en relación a las tasas de homicidios por armas de fuego. La metodología combinó dos estrategias de análisis: por un lado, entrevistas semi-estructuradas con informantes clave (funcionarios municipales y provinciales en distintas áreas de la gestión, y referentes de organizaciones no gubernamentales y, por el otro, grupos focales con actores vinculados a la atención médica, la educación y las instituciones religiosas. Los resultados sugieren una distancia muy corta entre las ciudades en las cuales las tasas han aumentado y aquellas en las que han disminuido. La diferencia más significativa es que en Venado Tuerto se encontró una mayor fragilidad en las instituciones públicas, por la falta de articulación entre las mismas. En tanto en San Rafael, los actores entrevistados atribuyen el bajo nivel de conflictividad a una red de prevención de violencias en la cual se coordinan agencias provinciales y municipales. Sin tratarse, ni Venado Tuerto, ni San Rafael, de ciudades violentas en los niveles latinoamericanos más truculentos, ambas muestran resultados diferentes que apuntan directamente a la posibilidad de juntar a las instituciones en un entramado de conversaciones, acuerdos y políticas en conjunto.This article presents the results of a comparative study of two Argentinian cities, namely Venado Tuerto and San Rafael, which revealed different trends in the rates of firearm-related homicides. The methodology combined two strategies of analysis: semi-structured interviews with key informants (municipal and provincial government agents in different areas of management, as well as members of non-governmental organizations and focus groups with actors involved in medical care, education, and religious institutions. The results suggest little difference between cities in which rates have increased and those in which rates have decreased. The most significant difference was that in Venado Tuerto a greater fragility of public institutions was observed due to the lack of articulation between such institutions. In San Rafael, the actors interviewed attribute the low level of conflict to a violence prevention network in which provincial and municipal agencies interact. Although neither city is violent at the most critical Latin American levels, the different results shown in Venado Tuerco and San Rafael indicate the possibility of bringing institutions together in a joint framework of conversations, agreements and policies.

  14. Magneto-optical Kerr effect. The relation between optical, transport and electronic properties in magnetic compounds.

    OpenAIRE

    Feil, Hermanus,

    1987-01-01

    Magneto-optical Kerr effect. The relation between optical, transport and electronic properties in magnetic compounds. Wanneer lineair gepolariseerd licht wordt gereflecteerd aan het oppervlak van een magnetisch materiaal, is het gereflecteerde licht elliptisch gepolariseerd. Dit is het magneto-optisch Kerr effect. ... Zie: Samenvatting

  15. Recent development on Malaysian Small Angle Neutron Scattering (MySANS) facility upgrading and related research activities

    International Nuclear Information System (INIS)

    This paper describes the recent progress of the MySANS - 'mini' SANS facility and its present applications in materials science and technology research and education. Both management and technical strategies are generally explained. The formation of Reactor Interest Group (RIG) has lead to several experimental projects which collaborative work between MINT and local universities/research institutes. In addition a future work plan is also noted. (author)

  16. On the stability of non-linear systems; Sur la stabilite des systemes non-lineaires

    Energy Technology Data Exchange (ETDEWEB)

    Guelman, M. [Commissariat a l' Energie Atomique, 91 - Saclay (France). Centre d' Etudes Nucleaires, services scientifiques

    1968-09-01

    A study is made of the absolute stability of nonlinear systems, using Liapounov's second method and taking into account the results obtained from V.M. Popov's work. The results already established are first presented, in particular concerning the frequency domain criterions for absolute stability of automatic control systems containing one single non linearity. The results have been extended to show the existence of a limiting parabola. New use is then made of the methods studied for deriving absolute stability criterions for a system containing a different type of non linearity. Finally, the results obtained are considered from the point of view of Aizerman's conjecture. (author) [French] Dans ce travail, on etudie la stabilite absolue des systemes non lineaires utilisant la deuxieme methode de Liapounov en tenant compte des resultats acquis a partir des travaux de V.M. Popov. On fait d'abord un expose des resultats deja etablis, en particulier en ce qui concerne les criteres frequentiels de stabilite absolue pour le cas d'un systeme de commande automatique comportant une seule non linearite. On a prolonge ces resultats jusqu'a l'etablissement de l'existence d'une parabole limite. On fait ensuite une nouvelle utilisation des methodes etudiees, etablissant des criteres de stabilite absolue pour un systeme comportant un type different de non linearite. On etudie enfin les resultats obtenus, dans l'optique de la conjecture de Aizerman. (auteur)

  17. Conception de lois de pilotage robustes et sequencement de gains par l'approche de systemes lineaires a parametres variants

    Science.gov (United States)

    Hentabli, Kamel

    Cette recherche s'inscrit dans le cadre du projet de recherche Active Control Technology entre l'Ecole de Technologie Superieure et le constructeur Bombardier Aeronautique . Le but est de concevoir des strategies de commandes multivariables et robustes pour des modeles dynamiques d'avions. Ces strategies de commandes devraient assurer a l'avion une haute performance et satisfaire des qualites de vol desirees en l'occurrence, une bonne manoeuvrabilite, de bonnes marges de stabilite et un amortissement des mouvements phugoides et rapides de l'avion. Dans un premier temps, nous nous sommes principalement interesses aux methodes de synthese LTI et plus exactement a l'approche Hinfinity et la mu-synthese. Par la suite, nous avons accorde un interet particulier aux techniques de commande LPV. Pour mener a bien ce travail, nous avons envisage une approche frequentielle, typiquement Hinfinity. Cette approche est particulierement interessante, dans la mesure ou le modele de synthese est construit directement a partir des differentes specifications du cahier des charges. En effet, ces specifications sont traduites sous forme de gabarits frequentiels, correspondant a des ponderations en entree et en sortie que l'on retrouve dans la synthese Hinfinity classique. Par ailleurs, nous avons utilise une representation de type lineaire fractionnelle (LFT), jugee mieux adaptee pour la prise en compte des differents types d'incertitudes, qui peuvent intervenir sur le systeme. De plus, cette representation s'avere tres appropriee pour l'analyse de la robustesse via les outils de la mu-analyse. D'autre part, afin d'optimiser le compromis entre les specifications de robustesse et de performance, nous avons opte pour une structure de commande a 2 degres de liberte avec modele de reference. Enfin, ces techniques sont illustrees sur des applications realistes, demontrant ainsi la pertinence et l'applicabilite de chacune d'elle. Mots cles. Commande de vol, qualites de vol et manoeuvrabilite, commande robuste, approche Hinfinity , mu-synthese, systemes lineaires a parametres variants, sequencement de gains, transformation lineaire fractionnelle, inegalite matricielle lineaire.

  18. Mortalidad por Accidente de Tránsito en la Región Vial Tunja-San Gil, Colombia, 2001 Road accident-related mortality in the Tunja-San Gil area, Colombia, 2001

    Directory of Open Access Journals (Sweden)

    Luis Enrique Mayorga Mogollón

    Full Text Available ObjetivoIdentificar las características de la mortalidad por accidente de tránsito en la región Tunja-San Gil. Metodología Se realizó un estudio descriptivo de la accidentalidad letal ocurrida durante el año 2001. Se consultaron fuentes primarias (informe de necropsia, acta de levantamiento de cadáver, certificado de defunción e informe de laboratorio de toxicología en el Instituto Nacional de Medicina Legal y Ciencias Forenses y en los hospitales de la región. ResultadosOcurrieron 45 muertes; edad promedio 34,7 años; 75,6 % hombres. La distribución según condición de transitoriedad fue: peatones (37,1 %, motociclistas (25,7 %, conductores (20 %, ciclistas (8,6 % y pasajeros (8,6 %. El fin de semana sucedieron 65,1 % de los accidentes. Los atropellamientos y choques fueron los accidentes más frecuentes. Los sitios con mayor proporción de accidentalidad letal fueron Tunja, la vía Vado Real-Oiba y San Gil. El trauma por accidente de tránsito fue severo, con un “Injury Severity Score” alto (promedio 42,8; 53 % de víctimas fallecieron in situ y 73 % durante las primeras dos horas. Según el Injury Severity Score sólo una de cada tres muertes era no prevenible; 17,8 % fueron prevenibles y 46,7 % potencialmente prevenibles. Conclusiones Se percibe la necesidad de diseñar e implementar un sistema regionalizado de atención de trauma por accidente de tránsito.ObjectivesTo identify the characteristics of mortality related to motor vehicle accidents in the Tunja-San Gil area (Colombia in the year 2001. MethodsA descriptive study was performed on the deaths from road accidents. Autopsy reports, body removal reports, death certificates and blood concentration reports, available at the National Institute for Forensic Sciences and at the local hospitals, were reviewed. Results Forty five fatalities were analyzed. The mean age of the victims was 34,7 years; males were more affected than females, with a 3:1 ratio. 37% were pedestrians, 26% motorcyclists, 20% drivers, 8,6% cyclists and 8,6% passengers. 65,1% of the road accidents occurred during weekends. The most common road accidents were either collisions or by running over. The places with the highest rates of death from motor vehicle related accidents were the urban areas of Tunja and San Gil and the Vado Real-Oiba road. The mean Injury Severity Score was 42,8. 53% of the deaths at the scene received no medical care; 73% of the victims died within two hours after the motor-vehicle accident. 17,8% of deaths were definitely preventable and 46,7% were possibly preventable, for a combined preventable death rate of 64,5 %.

  19. Distribution of nitrate and related nitrogen species in the unsaturated zone, Redlands and vicinity, San Bernardino County, California

    Science.gov (United States)

    Klein, John M.; Bradford, Wesley L.

    1979-01-01

    Nitrogen in the unsaturated soil zone in the vicinity of Redlands in San Bernardino County, Calif., has been suspected as the source of nitrate in water from wells. Plans have been made to recharge the aquifer with imported surface water. If this occurs, the rising water table will intercept soluble nitrate in the unsaturated zone. This study was made to quantify and delineate the distribution of the nitrate in the unsaturated zone. Thirteen test holes were drilled in areas of various land uses, and samples of the unsaturated-zone materials were obtained with depth. In 10 of the test holes, the maximum nitrate-nitrogen (N03--N) concentrations occurred within 10 feet of land surface suggesting N03--N sources at the surface. Ranking the test holes according to near-surface N03--N concentrations showed that, of the top six, only two are in irrigated citrus areas. One is in an abandoned feedlot. Of the lowest six, four are in irrigated citrus areas and one is in the Santa Ana River channel. The control test hole ranked fourth suggesting that relatively high N03--N concentrations can occur in near-surface soils even in the absence of human habitation. Analysis according to one conceptual model suggests that raising the water-table altitude by aquifer recharge will intercept N03--N now in the unsaturated zone causing increases in N03--N concentrations in water from wells of up to 48 milligrams per liter. The largest increases will occur in the vicinity of irrigated citrus areas. (Woodard-USGS).

  20. La familia, las relaciones afectivas y la identidad étnica entre indígenas migrantes urbanos en San Luis Potosí / La famille, les relations affectives et l'identité ethnique parmi les indigènes migrants urbains à San Luis Potosí / Family, Affective Relations and Ethnic Identity among Indigenous Urban Migrants in San Luis Potosí

    Scientific Electronic Library Online (English)

    Mónica Lizbeth, Chávez González.

    Full Text Available El objetivo de este artículo es debatir en torno al papel que desempeña la familia y las relaciones afectivas en la construcción de la pertenencia étnica en el caso de indígenas que han migrado a la ciudad. Básicamente se abordan los dilemas de reproducción étnica de tének y nahuas fuera de sus luga [...] res de origen para explicar el peso que adquieren las dimensiones subjetivas en la conformación de la identidad étnica. Abstract in english The aim of this article is to contribute to the debate on the role that the family and affective relations play in constructing ethnic belonging in the case of indigenous people who migrate to the city of San Luis Potosí. It explores the dilemmas of the ethnic reproduction of Teneks and Nahuas outsi [...] de their places of origin to explain the weight that subjective dimensions acquire in the formation of ethnic identities.

  1. 30 August 2011 - Médecins sans frontières International President U. K Karunakara signing the guest book with Head of International Relations F. Pauss and Adviser for Life Sciences M. Dosanjh; visiting CMS underground experimental area with Collaboration Spokesperson G. Tonelli.

    CERN Multimedia

    Maximilien Brice

    2011-01-01

    30 August 2011 - Médecins sans frontières International President U. K Karunakara signing the guest book with Head of International Relations F. Pauss and Adviser for Life Sciences M. Dosanjh; visiting CMS underground experimental area with Collaboration Spokesperson G. Tonelli.

  2. On-going development on MINT's small angle neutron scattering (SANS) facility upgrading and related research activities

    International Nuclear Information System (INIS)

    The TRIGA MARK II Research reactor at the Malaysian Institute for Nuclear Research (MINT) was commissioned in July 1982: next year will be its 20 year criticality. Since then various works have been performed to utilize the neutrons produced from this steady state reactor. Projects undertaken are the development and utilization of the Neutron Radiography (MyNR) and Small Angle Neutron Scattering (MySANS) facilities. Materials research, together with traditional scientific interest in understanding matter at the atomic scale, requires detail knowledge of the arrangement and the dynamics of the atoms or molecules. To enhance Malaysian research and development in this area in particular nanoparticle and nanostructure, MINT has made a dedicated commitment to strengthen the utilizing and maintaining the existing small angle neutron scattering facility to its optimal. This paper describes the recent progress of the MySANS facility and its proposed applications in materials science and technology research and education. Both management and technical strategies are generally explained. In addition a future work plan is also noted. (author)

  3. Empirical relations to estimate underwater PAR attenuation in San Quintín Bay using Secchi depth and horizontal sighting range

    Directory of Open Access Journals (Sweden)

    2005-01-01

    Full Text Available Empirical relationships to estimate vertical attenuation coefficient of photosynthetically available radiation (KPAR using Secchi disk, vertical black disk, and horizontal sighting ranges for San Quintín Bay, Baja California, were developed. Radiometric PAR profiles were used to calculate KPAR. Vertical (ZD and horizontal (HS sighting ranges were measured with white (Secchi depth or ZSD, HSW and black (ZBD, HSB targets. The empirical power models KPAR = 1.48 ZSD –1.16, KPAR = 0.87 ZBD –1.52, KPAR = 0.54 HSW –0.65 and KPAR = 0.53 HSB –0.92 were developed for the corresponding relationships. The parameters of these models are not significantly different from those of models developed for Punta Banda Estuary, another Baja California lagoon, with the exception of the one for the KPAR-HSW relationship. Also, parameters of the KPAR-ZSD model for San Quintín Bay and Punta Banda Estuary are not significantly different from those developed for coastal waters near Santa Barbara, California. A set of general models is proposed that may apply to coastal water bodies of northwestern Baja California and southern California (KPAR = 1.45 ZSD –1.10, KPAR = 0.92 ZBD –1.45, and KPAR = 0.70 HSB –1.10. While this approach may be universal, more data are needed to explore the variability of the parameters between different water bodies.

  4. Control estructural en el emplazamiento del volcanismo y mineralizaciones neógenas, distrito Cañada Honda, San Luis / Structural control on Neogene volcanism and related ore deposits at Cañada Honda district, San Luis province

    Scientific Electronic Library Online (English)

    María Silvia, Japas; Nilda Esther, Urbina; Patricia, Sruoga.

    2010-12-01

    Full Text Available Emplazada en la zona de transición sur del segmento de flat-slab pampeano y directamente vinculada a la horizontalización de la placa de Nazca, la faja volcánica terciaria de San Luis delata la migración que experimentó el arco magmático andino a la latitud de los 33º S en tiempos mio-pliocenos. Est [...] a faja volcánica comprende una serie de distritos metalogenéticos de gran importancia en las Sierras Pampeanas de San Luis. Las rocas volcánicas y mineralizaciones de la faja volcánica terciaria se encuentran representadas en los campos volcánicos La Carolina, Cañada Honda - Cerros Largos, Cerros del Rosario y El Morro, dispuestos saltuariamente según una dirección ONO-NO. Las edades K-Ar disponibles indican que el volcanismo se habría iniciado más tempranamente en el sector occidental de esta faja, y que habría finalizado ~ 10 Ma más tarde en la región oriental. El distrito Cañada Honda, el más antiguo y longevo de esta faja volcánica, registra eventos volcánicos e hidrotermales cuyas edades varían entre 12-13 Ma y 7,3 Ma, abarcando facies lávico-hipabisales y volcaniclásticas. Los resultados del análisis estructural demuestran el importante control que, directa o indirectamente, habrían ejercido las estructuras previas en el emplazamiento de las rocas volcánicas y mineralizaciones. Análisis de fábrica deformacional y cinemático han permitido reconocer dos asociaciones volcano-tectónicas diferentes. una de estas asociaciones se vincularía a la reactivación dextral de estructuras paralelas a la foliación del basamento. La asociación principal estaría vinculada con el desarrollo de dos depresiones volcano-tectónicas alineadas en dirección ONO-NO. Sus estructuras principales, de orientación ONO-NO, revelan componentes de desplazamiento senestral y normal tanto a escala del distrito Cañada Honda como de la faja volcánica terciaria. Abstract in english Located at the transitional southern end (33° S) of the Pampean flat-slab, the Tertiary volcanic belt records the eastward migration of the Andean volcanic arc due to the flattening of the Nazca Plate in Mio-Pliocene times. The tertiary volcanic belt encompasses several very important metallogenetic [...] districts in the San Luis Pampean Ranges. Volcanic rocks and associated ore-deposits crop out following a NW-WNW trending belt at La Carolina, Cañada Honda - Cerros Largos, Cerros del Rosario and El Morro volcanic fields. The available geochronological data indicate that the volcanic activity began early at the western end of the belt and ended ~ 10 Ma later at its eastern border. Cañada Honda district represents the oldest and longest-lived volcanic field of the tertiary volcanic belt. It records eruptive events and related hydrothermal alteration from 12-13 Ma to 7.3 Ma, including lavas and volcaniclastic products. Preliminary structural analysis shows that previous structures have strongly controlled, either directly or indirectly, the emplacement of volcanic rocks and related mineral deposits. Kinematic and strain fabric analyses allow to recognize two volcano-tectonic associations. One of these associations would be related to dextral reactivations of structures parallel to basement foliation. On the other hand, the main one would be linked with the generation of two volcano-tectonic depressions which are aligned in a NW-WNW direction. Their dominant structures trend NW-WNW and reveal sinistral-normal motions, both at local and Tertiary volcanic belt scales.

  5. Control estructural en el emplazamiento del volcanismo y mineralizaciones neógenas, distrito Cañada Honda, San Luis Structural control on Neogene volcanism and related ore deposits at Cañada Honda district, San Luis province

    Directory of Open Access Journals (Sweden)

    María Silvia Japas

    2010-12-01

    Full Text Available Emplazada en la zona de transición sur del segmento de flat-slab pampeano y directamente vinculada a la horizontalización de la placa de Nazca, la faja volcánica terciaria de San Luis delata la migración que experimentó el arco magmático andino a la latitud de los 33º S en tiempos mio-pliocenos. Esta faja volcánica comprende una serie de distritos metalogenéticos de gran importancia en las Sierras Pampeanas de San Luis. Las rocas volcánicas y mineralizaciones de la faja volcánica terciaria se encuentran representadas en los campos volcánicos La Carolina, Cañada Honda - Cerros Largos, Cerros del Rosario y El Morro, dispuestos saltuariamente según una dirección ONO-NO. Las edades K-Ar disponibles indican que el volcanismo se habría iniciado más tempranamente en el sector occidental de esta faja, y que habría finalizado ~ 10 Ma más tarde en la región oriental. El distrito Cañada Honda, el más antiguo y longevo de esta faja volcánica, registra eventos volcánicos e hidrotermales cuyas edades varían entre 12-13 Ma y 7,3 Ma, abarcando facies lávico-hipabisales y volcaniclásticas. Los resultados del análisis estructural demuestran el importante control que, directa o indirectamente, habrían ejercido las estructuras previas en el emplazamiento de las rocas volcánicas y mineralizaciones. Análisis de fábrica deformacional y cinemático han permitido reconocer dos asociaciones volcano-tectónicas diferentes. una de estas asociaciones se vincularía a la reactivación dextral de estructuras paralelas a la foliación del basamento. La asociación principal estaría vinculada con el desarrollo de dos depresiones volcano-tectónicas alineadas en dirección ONO-NO. Sus estructuras principales, de orientación ONO-NO, revelan componentes de desplazamiento senestral y normal tanto a escala del distrito Cañada Honda como de la faja volcánica terciaria.Located at the transitional southern end (33° S of the Pampean flat-slab, the Tertiary volcanic belt records the eastward migration of the Andean volcanic arc due to the flattening of the Nazca Plate in Mio-Pliocene times. The tertiary volcanic belt encompasses several very important metallogenetic districts in the San Luis Pampean Ranges. Volcanic rocks and associated ore-deposits crop out following a NW-WNW trending belt at La Carolina, Cañada Honda - Cerros Largos, Cerros del Rosario and El Morro volcanic fields. The available geochronological data indicate that the volcanic activity began early at the western end of the belt and ended ~ 10 Ma later at its eastern border. Cañada Honda district represents the oldest and longest-lived volcanic field of the tertiary volcanic belt. It records eruptive events and related hydrothermal alteration from 12-13 Ma to 7.3 Ma, including lavas and volcaniclastic products. Preliminary structural analysis shows that previous structures have strongly controlled, either directly or indirectly, the emplacement of volcanic rocks and related mineral deposits. Kinematic and strain fabric analyses allow to recognize two volcano-tectonic associations. One of these associations would be related to dextral reactivations of structures parallel to basement foliation. On the other hand, the main one would be linked with the generation of two volcano-tectonic depressions which are aligned in a NW-WNW direction. Their dominant structures trend NW-WNW and reveal sinistral-normal motions, both at local and Tertiary volcanic belt scales.

  6. Butyltin compounds and their relation with organic matter in marine sediments from San Vicente Bay-Chile.

    Science.gov (United States)

    Pinochet, Hugo; Tessini, Catherine; Bravo, Manuel; Quiroz, Waldo; De Gregori, Ida

    2009-08-01

    Tributyltin and its degradation products, mono-and dibutyltin have been determined in sediments collected in some representative sites in San Vicente Bay, Chile. The organic matter contents of sediments and water collected simultaneously from the same sampling sites were also determined. High levels of total organic carbon were found in sediments, especially in those from the northern part of the bay (1.80-8.87%). Good correlations were found between total organic carbon and the oxidizable and refractory carbon fractions. Among the butyltin species determined, TBT presented the highest levels, ranging from 14 to 1,560 ng Sn g(-1) dry weight. Concentration ratios of TBT to DBT ranged between 1.33 and 3.10, showing a high degree of contamination in sediments of this Chilean bay. All data obtained were analysed by the chemometric method of principal components analysis. A strong correlation was found between TBT and DBT concentrations in sediments, the different organic matter contents in sediments and water. In marine organisms only TBT was detected, containing the filterer organism Semele solida higher level than Perumytilus purpuratus and Pyura chilensis (220, 150 and 120 ng Sn g(-1) dry weight, respectively). For the alga Rodoficea iridae the TBT concentration was 60 ng Sn g(-1) dw. Comparatively, these values are higher than those reported for the same kind of marine organisms worldwide. The different samples from San Vicente Bay were found to be contaminated by TBT. This contamination can be attributed to the different anthropogenic activities taking place in the bay. PMID:18651232

  7. Relaciones tróficas de los peces del embalse San Miguel Arco, de Soyaniquilpan, Estado de México / Relations trofics of the fish of the San Miguel Arco dam, in Soyaniquilpan, State of Mexico

    Scientific Electronic Library Online (English)

    M. Á., Yubi Armendáriz; N. A., Navarrete Salgado; G., Elías Fernández; G., Vázquez Gómez; E. S., Urrieta Zapiain.

    2008-06-01

    Full Text Available Las relaciones de los organismos en la naturaleza se basan en dos ciclos, uno de materia y el otro de energía, dichos ciclos dan origen a las cadenas tróficas las cuales dan origen a los tres niveles tróficos; autótrofos, herbívoros y carnívoros. Para el caso de los peces de agua dulce, los organism [...] os jóvenes viven y se alimentan en la orilla y superficie del agua, para conocer lo que comen se analiza el tracto digestivo. Por lo cual el presente trabajo pretende determinar la trama trófica de los peces del embalse San Miguel Arco. Se capturaron los peces del embalse con un chinchorro de 30 metros de largo y 1/3 de pulgada, los organismos se fijaron con formalina al 10 %, los peces se identificaron al igual que el alimento que consumieron, con claves especializadas, a la abundancia de los grupos alimenticios se les aplicó el índice de Simpson. Se encontró que Chirostoma humboldtianum, es zooplanctófago especialista, Cyprinus carpió, y Carassius auratus son planctófagos generalistas y Poeciliopsis infans es planctófago especialista. La trama trófica se basa en zooplancton (Bosmina y Mastigodiaptomus) además de zoobentos (Corixidae). Abstract in english The relations of the organisms in the nature are based on two cycles, one of matter and the other of energy, these cycles give origin to the food chains which give origin to the three food levels; autotrophs, herbivorous and carnivores. For the case of freshwater fishes, the young organisms live and [...] they are fed in the border and surface of the water, to know what they eat analyzes alimentary canal. Thus the present work tries to determine the trofhic plot of the fish of the San Miguel dam Arc. The fish of the dam with a small boat of 30 meters in length captured themselves and 1/3 of inch, the organisms paid attention with formalin to 10 %, the fish were identified like the food that consumed, with specialized keys, to the abundance of the nutritional groups I am applied the index to them of Simpson. One was that Chirostoma humboldtianum, is zooplanctofago specialistic, Cyprinus carpio, and Carassius auratus is planctofagos generalist and Poeciliopsis infans is planctófago specialistic. The trofic plot is based on zooplancton (Bosmina and Mastigodiaptomus) in addition to zoobentos (Corixidae).

  8. Mercury in the mix: An in situ mesocosm approach to assess relative contributions of mercury sources to methylmercury production and bioaccumulation in the Sacramento-San Joaquin Delta

    Science.gov (United States)

    Fleck, J.; Krabbenhoft, D. P.; Kraus, T. E. C.; Ackerman, J.; Stumpner, E. B.; DeWild, J.; Marvin-DiPasquale, M. C.; Tate, M.; Ogorek, J.

    2014-12-01

    Mercury (Hg) contamination is considered one of the greatest threats to the Sacramento-San Joaquin Delta and the San Francisco Estuary ecosystems. This threat is driven by the transformation of Hg, deposited in the Delta from erosion of upstream historic mining debris and atmospheric deposition, by native bacteria into the more toxic and biologically available form, methylmercury (MeHg), in the wetlands and sediment of the Delta. To effectively manage this threat, a quantitative understanding of the relative contribution of the different Hg sources to MeHg formation is needed. Mass balance estimates indicate as much as 99% of the Hg entering the Delta arrives via tributary inputs. Of the tributary Hg load, approximately 90% is adsorbed to suspended particles from tributary discharge and 10% is in the dissolved fraction, potentially of atmospheric origin. In comparison, the remaining 1-2% of the Hg entering the Delta arrives through direct atmospheric deposition (wet and dry). The relative importance of these sources to MeHg production within the Delta is not linearly related to the mass inputs because atmospherically-derived Hg is believed to be more reactive than sediment-bound Hg with respect to MeHg formation. We conducted an in situ mesocosm dosing experiment where different Hg sources to the Delta (direct atmospheric, dissolved riverine and suspended sediment) were "labeled" with different stable Hg isotopes and added to mesocosms within four different wetlands. Mercury isotopes added with the streambed sediments were equilibrated in sealed containers for six months; while the Hg isotopes associated with the precipitation and river water were equilibrated for 24 hours prior to use. After adding the isotopes, we sampled the water column, overlying air, bottom sediments and fish (Gambusia) at time intervals up to 30 days. Preliminary results from this experiment suggest that aqueous Hg sources (Hg introduced with precipitation and filtered river water) are 10-1,000x more available to methylating microbes and fish uptake than particle bound Hg. Consequently, although atmospheric Hg deposition may contribute a relatively small portion of the total Hg loading to the Delta, it may contribute to a substantial portion of the MeHg produced within the Delta.

  9. In vitro antioxidant potentials of traditional Chinese medicine, Shengmai San and their relation to in vivo protective effect on cerebral oxidative damage in rats.

    Science.gov (United States)

    Ichikawa, Haruyo; Konishi, Tetsuya

    2002-07-01

    The preventive effects of Shengmai San (SMS), a traditional Chinese herbal medicine (TCM), was studied on cerebral ischemia-reperfusion injury in rats as a model of antioxidant-based composite therapy. Two biochemical indicators of oxidative damage, thiobarbituric acid reactive substance (TBARS) formation and glutathione peroxidase (GPX) loss were measured in the brain after forebrain ischemia-reperfusion treatment and both were inhibited in all rats administered SMS (15 g original herbs/kg) 2 h before the ischemia-reperfusion. Histochemical study of the brain slice using TTC staining revealed that the SMS effectively reduced infarct area caused by the cerebral ischemia-reperfusion. The antioxidant potentials of SMS preparations were determined in vitro by five different assay methods and were related to the in vivo effectiveness of SMS in protection against brain damage. Inhibitory effect on TBARS formation in vivo showed better correlation with superoxide radical scavenging and DPPH quenching activity in vitro rather than with the other in vitro antioxidant indicators. On the other hand, the in vivo prevention of GPX activity loss showed better correlation with in vitro crocin bleaching inhibition than with the other in vitro antioxidant indicators. It was also suggested that the in vitro TBARS inhibitory activty of SMS is not a good indication to predict the in vivo effectiveness of SMS on inhibition of either TBARS formation or GPX activity loss. PMID:12132665

  10. Prediction des vibrations eoliennes d'un systeme conducteur-amortisseur avec une methode temporelle non lineaire

    Science.gov (United States)

    Langlois, Sebastien

    Les vibrations eoliennes sont la cause principale de bris de conducteurs en fatigue des lignes aeriennes de transport d'energie electrique. Ces vibrations sont dues a des detachements tourbillonnaires produits dans le sillage du conducteur. Une methode commune de reduction des vibrations est l'ajout d'amortisseurs de vibrations pres des pinces de suspension. Contrairement aux essais en ligne experimentale, la modelisation numerique permet d'evaluer rapidement et a faible cout la performance d'un amortisseur de vibration sur une portee de ligne aerienne. La technologie la plus frequemment utilisee fait appel au principe de balance d'energie (PBE) en evaluant le niveau de vibrations pour lequel la puissance injectee par le vent est egale a la puissance dissipee par le conducteur et l'amortisseur. Les methodes actuelles pour la prediction des vibrations reposent sur des hypotheses simplificatrices quant a la modelisation de l'interaction conducteur-amortisseur. Une approche prometteuse pour la prediction des vibrations est l'utilisation d'un modele numerique temporel non lineaire qui permet de mieux representer la masse, la geometrie, la rigidite et l'amortissement du systeme. L'objectif principal de ce projet de recherche est de developper un modele numerique avec integration temporelle directe d'un conducteur et d'un amortisseur en vibration permettant de reproduire le comportement dynamique du systeme pour la gamme de frequence et d'amplitude typique des vibrations eoliennes des conducteurs. Un modele par elements finis d'un conducteur seul en vibration resolu par integration temporelle directe a d'abord ete developpe en considerant une rigidite de flexion variable. Comme une rigidite de flexion constante et egale a 50% de la rigidite de flexion maximale theorique ( EImax) est jugee adequate pour la modelisation du conducteur, c'est cette valeur qui a ete utilisee pour la suite du projet. Ensuite, des modeles non-lineaires pour deux types d'amortisseur de vibrations (Stockbridge et Hydro-Quebec) ont ete developpes. Ces modeles reproduisent adequatement le comportement dynamique des amortisseurs pour une grande gamme de frequences et d'amplitudes de deplacement. Finalement, les modeles d'amortisseur ont ete integres au modele de conducteur et uil nouvel outil de prediction de vibrations eoliennes base sur le principe de balance d'energie (PBE) a ete developpe. Celui-ci permet de bien reproduire des amplitudes de vibration mesurees sur une ligne experimentale, en particulier dans la gamme 8 a 35 Hz. A plus long terme, un tel modele pourrait servir de point de depart vers une modelisation temporelle complete du phenomene de vibrations eoliennes des conducteurs incluant l'excitation eolienne, l'auto-amortissement des conducteurs et des conditions limites realistes pour les lignes aeriennes. Mots-cles : dynamique de cable, elements finis, conducteurs, amortisseurs, vibrations eoliennes, lignes aeriennes electriques

  11. The Migration Experience as It Relates to Cargo Participation in San Miguel Cuevas, Oaxaca / La experiencia migratoria en relación con la participación en cargos en San Miguel Cuevas, Oaxaca

    Scientific Electronic Library Online (English)

    Silvia, Ventura Luna.

    2010-06-01

    Full Text Available Este artículo ofrece un recuento de los continuos efectos de la migración sobre el gobierno municipal y la organización de una comunidad mixteca: San Miguel Cuevas, Oaxaca, México. Legalmente constituida como un autogobierno municipal indígena, en décadas recientes, Cuevas ha sido reconstituida como [...] una comunidad transnacional, cuyos ciudadanos radican principalmente en ella y en Fresno, California. La creciente circularidad y permanente migración de Cuevas a estados unidos desde finales de los ochenta, así como los usos y costumbres impuestos por la vida comunitaria en Cuevas, pone a sus varones migrantes en una situación complicada para cumplir sus obligaciones familiares y comunitarias -cívicas y ceremoniales (cargos)-, que se requieren para mantener su ciudadanía y residencia en Cuevas y tener acceso a tierras comunales y otros recursos. Abstract in english This article provides an overview of the ongoing effects of migration on municipal governance and community organization in the Mixtec town of San Miguel Cuevas in Oaxaca, Mexico. Legally constituted as a self-governing indigenous municipality, Cuevas has recently been reconstituted as a transnation [...] al community whose citizens now reside mainly in Cuevas and Fresno, California. Increased circular and permanent migration to the united States since the late 1980s and the customary law (usosy costumbres) enforced in the community, situates its migrants in a complex array of familial and community obligations that require fulfilling civic and ceremonial obligations (cargos) in order - to maintain one's citizenship and residence in Cuevas and to have access to its communally owned lands and other resources.

  12. / Prenatal care according to the NOM-007 norm, which relates to maternal morbidity in a health center in San Luis Potosí (2008)

    Scientific Electronic Library Online (English)

    Rosa I., Vega M; Alicia G., Barron; Lucila P., Acosta R.

    2012-12-01

    Full Text Available RESUMEN La mortalidad materno-infantil refleja el grado de desarrollo social y económico de un país, por lo que la salud reproductiva es una prioridad sanitaria; su prevención depende directamente de la cobertura y calidad de los servicios de salud. OBJETIVOS: evaluar el apego de la atención prenata [...] l a la NOM 007 y su correlación con la morbilidad materna en una unidad de salud de San Luis Potosí, México. METODOLOGIA:estudio descriptivo, correlacional y cuantitativo, cuya unidad de análisis fueron 571 expedientes de embarazadas atendidas durante el 2008. Para probar la hipótesis se utilizó r de Pearson, p = 0,05. RESULTADOS: el rango de edad osciló entre 13 y 43 años, 37,1% adolescentes; 44,3% se incorporó a la atención en el segundo trimestre del embarazo; 38,2% cumplió con mínimo cinco consultas; 46,4% presentó morbilidad, con la infección urinaria como la más común (224 casos). El apego de la atención prenatal fue adecuado en 2,6% de los casos, según las acciones efectuadas; las de promoción de salud fueron las menos realizadas. CONCLUSION: el nivel de apego de la atención prenatal a la NOM 007 se calificó inadecuado en 97,4%, coincidiendo con morbilidad materna (87,5 -100%); esto podría relacionarse con consultas más frecuentes para algunas mujeres, el ingreso tardío a la atención y la consecuente reducción del tiempo para la realización de las acciones. La correlación resultó contraria a lo esperado, pues a mayor apego de la atención prenatal a la norma, mayor morbilidad materna se presentó (r = 0,318, p Abstract in english Mother and child mortality reflects the level of social and economic development of a country; therefore, reproductive health is a sanitary priority. Mortality prevention depends directly on the coverage and quality of health services. OBJECTIVE: to assess the compliance of prenatal care with the NO [...] M 007 norm and its correlation with maternal morbidity in a health center located in San Luis Potosí, Mexico. METHOGOLOGY: a descriptive, correlational, and quantitative study in which the units of analysis were the medical records of 571 pregnant women cared for during 2008. In order to prove the hypothesis, Pearson’s r was used. The p value was ? 0.05. RESULTS: ages ranged from 13 to 43 years. Additionally, 37.1% of the patients were teenagers and 44.3% began receiving attention during the second trimester of their pregnancy; 38.2% attended at least five medical appointments, and 46.4% had morbidity. For the latter group, urinary infection was the most common condition (224 cases). Prenatal attention was adequate in 2.6% of the cases according to the actions performed. Health promotion actions were the least frequent. CONCLUSION: the level of compliance with the NOM 007 norm for prenatal care was considered inadequate in 97.4% of the cases and was consistent with maternal morbidity (87.5-100%). This could be related to more frequent appointments for some women and with late treatment, which resulted in less time to perform said actions. Contrary to expectations, greater compliance meant higher maternal morbidity (r = 0.318, p

  13. Formas de contratación y relaciones de trabajo en la cosecha de vid de la provincia de San Juan, Argentina / Types of workers' recruitment and labor relations in the grape harvest at the province of San Juan, Argentina

    Scientific Electronic Library Online (English)

    Guillermo, Neiman; Germán, Quaranta; Mariela, Blanco.

    2013-12-01

    Full Text Available Este artículo analiza, para el caso del mercado de trabajo para tareas de cosecha en la producción de uvas para la elaboración de vinos de baja calidad enológica en el departamento Sarmiento de la provincia de San Juan, la relación que se establece entre las modalidades de contratación y la presenci [...] a de conflictos en el sitio de producción a nivel de la organización del trabajo, la extensión y características de la jornada de trabajo y, los niveles y sistemas de remuneración. Se trata de circunstancias que ponen en tensión de manera continua y cotidiana a la relación de trabajo y van a determinar diferentes respuestas por parte de empleadores, trabajadores y contratistas de mano de obra. El análisis realizado muestra que la conflictividad se intensifica en algunos momentos y bajo determinadas condiciones provocando interrupciones de la jornada de trabajo, despidos, resistencias, medidas de disciplinamiento, entre otras tensiones propias de la relación de trabajo. Abstract in english This article analyzes the case of the labor market for harvesting tasks in the production of low quality grapes for wine making in the Sarmiento department at the province of San Juan. The main concern is about the relationship established between the types of labor contracts and the presence of lab [...] or conflicts in the site of production at the level of the work organization, the size and characteristics of the workday, and the level as well remuneration systems. It is assumed that these circumstances will put pressure on everyday working relationships and will determine different responses from employers, workers, and labor contractors as well. The analysis shows that the conflict will intensify at certain times and under certain conditions, causing workday interruptions, layoffs, resistances, disciplining measures, among other tensions taking place at the working relationship itself.

  14. Origen de la calidad del agua del acuífero colgado y su relación con los cambios de uso de suelo en el Valle de San Luis Potosí / Origin of water quality of the hanging aquifer and its relation with changes in land use in the San Luis Potosí valley

    Scientific Electronic Library Online (English)

    Briseida, López-Álvarez; José Alfredo, Ramos-Leal; Janete, Moran-Ramírez; Antonio, Cardona Benavides; Guillermo, Hernández Garcia.

    2013-04-01

    Full Text Available La historia de la ciudad San Luis Potosí se remonta al siglo XVI. Con el descubrimiento de yacimientos de oro y plata y la presencia de cuerpos de agua en el valle, fue fundada la ciudad San Luis Minas del Potosí, dando lugar a los dos primeros usos de suelo, urbano y minero. A partir del siglo XVII [...] , el uso de suelo agrícola se desarrolló en huertos y fue relegado a la periferia de la zona urbana en el transcurso del tiempo. Finalmente el uso de suelo industrial surgió de manera importante en la segunda mitad del siglo XX. En la actualidad los tres usos de suelo existentes dentro del Valle de San Luis Potosí son el urbano, agrícola e industrial. A través de una campaña de muestreo hidrogeoquímico en octubre de 2008, con 44 muestras de norias y 3 de manantiales dentro del valle, se evaluaron parámetros físico-químicos, cationes, aniones y elementos traza. En los tres usos de suelo en la zona de estudio fueron detectados niveles importantes de nitratos, sulfatos, cloruros, conductividad eléctrica, coliformes totales y fecales; sin embargo, en la zona urbana existen anomalías puntuales de metales pesados principalmente de mercurio, bario, estroncio, cadmio, plomo, fósforo y plata, relacionadas a las antiguas actividades mineras y a la industria activa en la zona. Mientras que en la zona agrícola, la presencia de metales está asociada a los canales a cielo abierto que también reciben agua del Tanque Tenorio y éste a su vez de la zona industrial. En la zona industrial se detectaron grandes anomalías de tipo puntual en casi todos los metales pesados analizados; la principal fuente de estos contaminantes corresponden a un terreno industrial activo. Este trabajo está enfocado a evaluar el impacto que ha generado la actividad antropogénica sobre el acuífero colgado del Valle de San Luis Potosí desde inicios de la fundación de la ciudad hasta la actualidad, utilizando la calidad del agua como herramienta de análisis. Abstract in english The history of San Luis Potosi City dates back to the sixteenth century. With the discovery of gold and silver deposits and the presence of water bodies in the valley, the city of San Luis Minas Potosí was founded, leading to the first two uses of land: urban and mining. From the seventeenth century [...] , agricultural land developed in orchards and, over time, was relegated to the periphery of the urban area. Finally, industrial land use emerged significantly in the second half of the twentieth century. Currently the three existing land uses within the Valley of San Luis Potosi are urban, agricultural and industrial. Through a hydrogeochemical sampling campaign in October 2008 with 44 samples from wells and 3 from springs within the valley, we assessed physical and chemical parameters, cations, anions and trace elements. In the three land uses within the study area, we detected significant levels of nitrates, sulphates, chlorides, electrical conductivity, total and fecal coliforms; but in urban areas there are punctual anomalies of heavy metals, mainly mercury, barium, strontium, cadmium, lead, phosphorus and silver related to former mining and active industry in the area. However, in the agricultural zone, the presence of metals is associated with open channels, which also receive water from the Tanque Tenorio and this in turn from the industrial area. In the industrial area, puntual anomalies were detected in almost all heavy analyzed metals; the main source of these pollutants corresponds to an active industrial area. This work aims to evaluate the impact of anthropogenic activity in the perched aquifer of the Valley of San Luis Potosí since the city's foundation to the present, using water quality as an analytical tool.

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

    Scientific Electronic Library Online (English)

    Gladys Magdalena, Rodríguez Funes; Bruna, Brands; Edward, Adlaf; Norman, Giesbrecht; Laura, Simich; Maria da Gloria Miotto, Wright.

    Full Text Available São apresentados, aqui, dados quantitativos de um estudo multicêntrico, multimétodos, de corte transversal, realizado em um centro de saúde pública em San Pedro Sula, Honduras. O objetivo foi descrever a perspectiva crítica dos membros da família ou pessoas que se sentem afetadas por terem alguém pr [...] óximo que usa ou usou drogas ilegais, em relação aos fatores de risco. Os dados foram coletados através de questionário aplicado em 100 indivíduos. A maioria era composta por mulheres pobres, com pouca escolaridade. Os consumidores eram majoritariamente varões, com idade média de 23,3 anos. A droga mais utilizada foi a maconha (78%), seguida por crack/cocaína (72%), cola/inalantes (27%), alucinógenos (ecstasy/LSD) (3%), anfetaminas/estimulantes (1%), heroína (1%). Entre os fatores de risco identificados estão: experiência anterior com álcool/fumo, ter amigos/amigas que usam drogas, falta de conhecimento, baixa autoestima, idade, entre outros fatores pessoais, familiares e sociais. Em conclusão, deve-se reforçar a prevenção e proteção. Abstract in spanish En este estudio, se presentan datos cuantitativos del estudio multicéntrico, multimétodos, de corte transversal realizado en un centro de salud público en San Pedro Sula, en Honduras. Su objetivo es describir la perspectiva crítica que tienen los familiares o personas, que se consideran afectadas po [...] r tener a alguien cercano que usa o ha usado drogas ilegales, con relación a factores de riesgo. Los datos se obtuvieron mediante una encuesta con 100 entrevistados. La mayor parte de las personas informantes eran mujeres pobres con baja escolaridad. Los consumidores eran en su mayoría hombres con edad promedio de 23,3 años. La droga más usada fue la marihuana (78%) seguida de crack/cocaína (72%), pegamento/inhalantes (27%), alucinógenos (éxtasis/LSD) (3%), anfetaminas/estimulantes (1%) y heroína (1%). Los factores de riesgo identificados fueron la experiencia previa con alcohol/tabaco, el tener amigos/amigas que usan drogas, la falta de conocimiento, la baja autoestima , la edad, entre otros factores personales, familiares y sociales. Se concluye que es necesario fortalecer las medidas de prevención y protección. Abstract in english This article presents quantitative data from a multicenter, cross-sectional study, which was performed at a public health center in San Pedro Sula, Honduras, using multiple methods. The objective of the study was to describe the critical perspective of people who reported being affected by their rel [...] ationship with an illicit drug user (relative or acquaintance) in terms of risk factors. Data collection was performed using 100 questionnaires. Most participants were women with low education levels. Drug users were mostly men, with an average age of 23.3 years. The most consumed drug was marijuana (78%), followed by crack/cocaine (72%), glue/inhalants (27%), hallucinogens (ecstasy/LSD) (3%), amphetamines/stimulants (1%), and heroin (1%). The identified risk factors include: previous experience with alcohol/tobacco, having friends who use drugs, lack of information, low self-esteem, age, and other personal, family and social factors. In conclusion, prevention and protection should be reinforced.

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

    Directory of Open Access Journals (Sweden)

    Gladys Magdalena Rodríguez Funes

    2009-01-01

    Full Text Available En este estudio, se presentan datos cuantitativos del estudio multicéntrico, multimétodos, de corte transversal realizado en un centro de salud público en San Pedro Sula, en Honduras. Su objetivo es describir la perspectiva crítica que tienen los familiares o personas, que se consideran afectadas por tener a alguien cercano que usa o ha usado drogas ilegales, con relación a factores de riesgo. Los datos se obtuvieron mediante una encuesta con 100 entrevistados. La mayor parte de las personas informantes eran mujeres pobres con baja escolaridad. Los consumidores eran en su mayoría hombres con edad promedio de 23,3 años. La droga más usada fue la marihuana (78% seguida de crack/cocaína (72%, pegamento/inhalantes (27%, alucinógenos (éxtasis/LSD (3%, anfetaminas/estimulantes (1% y heroína (1%. Los factores de riesgo identificados fueron la experiencia previa con alcohol/tabaco, el tener amigos/amigas que usan drogas, la falta de conocimiento, la baja autoestima , la edad, entre otros factores personales, familiares y sociales. Se concluye que es necesario fortalecer las medidas de prevención y protección.São apresentados, aqui, dados quantitativos de um estudo multicêntrico, multimétodos, de corte transversal, realizado em um centro de saúde pública em San Pedro Sula, Honduras. O objetivo foi descrever a perspectiva crítica dos membros da família ou pessoas que se sentem afetadas por terem alguém próximo que usa ou usou drogas ilegais, em relação aos fatores de risco. Os dados foram coletados através de questionário aplicado em 100 indivíduos. A maioria era composta por mulheres pobres, com pouca escolaridade. Os consumidores eram majoritariamente varões, com idade média de 23,3 anos. A droga mais utilizada foi a maconha (78%, seguida por crack/cocaína (72%, cola/inalantes (27%, alucinógenos (ecstasy/LSD (3%, anfetaminas/estimulantes (1%, heroína (1%. Entre os fatores de risco identificados estão: experiência anterior com álcool/fumo, ter amigos/amigas que usam drogas, falta de conhecimento, baixa autoestima, idade, entre outros fatores pessoais, familiares e sociais. Em conclusão, deve-se reforçar a prevenção e proteção.This article presents quantitative data from a multicenter, cross-sectional study, which was performed at a public health center in San Pedro Sula, Honduras, using multiple methods. The objective of the study was to describe the critical perspective of people who reported being affected by their relationship with an illicit drug user (relative or acquaintance in terms of risk factors. Data collection was performed using 100 questionnaires. Most participants were women with low education levels. Drug users were mostly men, with an average age of 23.3 years. The most consumed drug was marijuana (78%, followed by crack/cocaine (72%, glue/inhalants (27%, hallucinogens (ecstasy/LSD (3%, amphetamines/stimulants (1%, and heroin (1%. The identified risk factors include: previous experience with alcohol/tobacco, having friends who use drugs, lack of information, low self-esteem, age, and other personal, family and social factors. In conclusion, prevention and protection should be reinforced.

  17. The Role of Social Support and Acculturative Stress in Health-Related Quality of Life Among Day Laborers in Northern San Diego

    OpenAIRE

    Salgado, Hugo; Castañeda, Sheila F; Talavera, Gregory A; Lindsay, Suzanne P.

    2012-01-01

    There is evidence to suggest that Latino day laborers experience higher levels of acculturative stress than Latinos in employment sectors in the US. Given the stress-buffering role that social support plays in minimizing the negative physical and mental health outcomes of stress, this study examined this relationship in a sample of 70 Latino Day laborers in the northern San Diego area (100% male, mean age = 27.7, SD = 9.1). Results from multivariate regression analyses showed that there was a...

  18. O público e o privado na primeira LDB: a relação entre San Tiago Dantas e Anísio Teixeira / Public et privé dans la première LDB: la relation entre San Tiago Dantas et Anísio Teixeira / Public and private in the first LDB: the relationship between San Tiago Dantas and Anísio Teixeira / Público y privado en la primera LDB: la relación entre San Tiago Dantas y Anísio Teixeira

    Scientific Electronic Library Online (English)

    José Antonio Miranda, Sepulveda.

    2013-12-01

    Full Text Available Este trabalho teve por objetivo analisar uma carta do educador Anísio Teixeira para o deputado San Tiago Dantas datada de julho de 1959, durante o período em que tramitava o projeto de Lei de Diretrizes e Bases da Educação Nacional. Trata-se de um material cujo conteúdo esclarece a discussão entre o [...] s dois interlocutores sobre os substitutivos de lei propostos pelo deputado Carlos Lacerda, à época da tramitação do citado projeto. Este trabalho concluiu que a relação entre San Tiago Dantas e Anísio Teixeira, em oposição ao que estava sendo proposto pelos referidos substitutivos, convergia na defesa da escola pública questionando a transferência de recursos públicos para a iniciativa privada. Abstract in spanish Este estudio tuvo como objetivo analizar una carta del Sr. Teixeira para o Sr. San Tiago Dantas, de fecha julio de 1959, durante el período de la hora de proceder a través del proyecto de Ley de Directrices y Bases de la Educación Nacional. Este es un material cuyo contenido clarifica el debate entr [...] e las dos partes sobre el proyecto sustitutivo propuesto por el diputado Carlos Lacerda, en el momento de la realización de dicho proyecto. Este estudio llegó a la conclusión de que la relación entre San Tiago Dantas y Teixeira, a diferencia de lo que se proponía por los sustitutos, se reunieron en la defensa de la escuela pública en duda la transferencia de recursos públicos a la empresa privada. Abstract in english This study aimed to analyze a letter from Mr. Anísio Teixeira to the congressman San Tiago Dantas, dated July 1959, during the period when proceeding through the draft Law of Guidelines and Bases of National Education. This is a material whose content clarifies the discussion between the two parties [...] on the substitute bill proposed by Carlos Lacerda, at the time of the conduct of the said project. This study concluded that the relationship between San Tiago Dantas and Teixeira, as opposed to what was being proposed by those substitutes, converged on the defense of public school questioning the transfer of public resources to private enterprise.

  19. Spatial distribution of Illex argentinus in San Matias Gulf (Northern Patagonia, Argentina) in relation to environmental variables: A contribution to the new interpretation of the population structuring

    Science.gov (United States)

    Crespi-Abril, Augusto C.; Morsan, Enrique M.; Williams, Gabriela N.; Gagliardini, Domingo A.

    2013-03-01

    Traditionally, it was assumed that major spawning activity of Illex argentinus occurs in discrete pulses along the outer-shelf/slope off Argentina/southern Brazil during late-fall/winter and that early life stages develop near the Brazil-Malvinas Confluence (BMC). However, a novel hypothesis of the population structuring of the species was proposed that states that coastal waters may be important as spawning and feeding grounds. Here, we analyzed the spatial distribution of Illex argentinus inside San Matias Gulf based on the position of the CPUE of jiggers in order to improve the knowledge of the population structuring in coastal regions. Squids were mainly concentrated on the northern region of the gulf where favorable oceanographic conditions (e.g. water stratification, chlorophyll-a concentration peaks) to feeding and spawning are present. These results provided empirical evidences that individuals of I. argentinus use Argentinean coastal waters, particularly San Matias Gulf, as permanent feeding and spawning grounds which supports the new hypothesis.

  20. SAN CARLOS APACHE PAPERS.

    Science.gov (United States)

    ROESSEL, ROBERT A., JR.

    THE FIRST SECTION OF THIS BOOK COVERS THE HISTORICAL AND CULTURAL BACKGROUND OF THE SAN CARLOS APACHE INDIANS, AS WELL AS AN HISTORICAL SKETCH OF THE DEVELOPMENT OF THEIR FORMAL EDUCATIONAL SYSTEM. THE SECOND SECTION IS DEVOTED TO THE PROBLEMS OF TEACHERS OF THE INDIAN CHILDREN IN GLOBE AND SAN CARLOS, ARIZONA. IT IS DIVIDED INTO THREE PARTS--(1)…

  1. San Juan Uchucuanicu: évolution historique

    Directory of Open Access Journals (Sweden)

    1975-01-01

    Full Text Available La communauté de San Juan est reconnue depuis 1939. Une première partie concerne l?organisation de la reducción de San Juan vers le milieu du XVIe siècle. Le poids fiscal s?exerce durement sur le village et la crise est générale dans toute la vallée du Chancay au XVIIe. siècle. La christianisation des habitants est définitive au milieu de ce même siècle. C?est vers la fin du XVIIe siècle et durant tout le XVIIIe que se multiplient les conflits entre San Juan et les villages voisins liés aux terrains de pâture et à la possession de l?eau. La deuxième partie du travail concerne les rapports de la communauté de San Juan avec le Pérou contemporain : contrainte fiscale toujours très lourde durant la fin de l?époque coloniale, exactions des militaires juste avant l?indépendance. La période républicaine voit toujours les conflits avec les villages voisins mais aussi la naissance de familles qui cherchent à retirer le maximum de la communauté. Les terres sont divisées et attribuées : la détérioration de l?organisation communale traditionnelle est manifeste. L4es conflits se multiplient entre petits propriétaires, mais aussi avec les haciendas voisines : c?est l?apparition d?une véritable lutte de classes. La situation actuelle est incertaine, le poids de l?économie marchande se développe avec l?exode des jeunes. Que sera la communauté San Juan à la fin de ce siècle? La comunidad de San Juan está reconocida desde 1939. La primera parte concierne a la organización de la 'reducción' de San Juan hacia mediados del siglo XVI. El peso fiscal se ejerce duramente sobre el pueblo y en el siglo XVII la crisis es general en todo el valle de Chancay. Hacia mediados del mismo siglo la cristianización de los habitantes es definitiva. Es hacia fines del siglo XVII y durante todo el siglo XVIII que se multiplican los conflictos entre San Juan y los pueblos vecinos, los que están relacionados con los terrenos de pastoreo y la posesión del agua. La segunda parte del trabajo concierne a las relaciones de la comunidad de San Juan con el Perú contemporáneo: obligaciones fiscales cada vez más pesadas hacia fines de la época colonial, exacciones de los militares justamente antes de la independencia. El período republicano ve siempre los conflictos entre los pueblos vecinos pero igualmente el nacimiento de familias que procuran sacar el máximo de la comunidad. Las tierras son divididas y atribuidas: el deterioro de la organización comunal tradicional se pone de manifiesto. Se multiplican los conflictos entre pequeños propietarios, pero también con las haciendas vecinas: es la aparición de una verdadera lucha de clases. La situación actual es incierta, el peso de la economía comercial se desarrolla con el éxodo de los jóvenes. ¿Que será de la comunidad de San Juan a fines de este siglo? San Juan community has been recognized since 1939. In the first part, we will show' the organization of San Juan's reducción at the middle of the XVI century. The fiscal burden on the village was hard and this crisis was general all over the valley of Chancay during the XVII century. Christianisation of the inhabitants was completed in the middle of this same century. It is only at the end of this century and along all the XVII that the conflicts between San Juan and the neighboring villages were multiplied, tied to pasture lands and water possession In the second part, we will show the relations of San Juan with the contemporary Peru: always very hard fiscal constraint at the end of the colonial time and military exactions till the independence. Along the republican period, the conflicts with the neighboring villages persisted but there were also arising families who were trying to take the maximum of the community. Lands were divided and attributed, deterioration of traditional communal organization was visible. Conflicts between small landlords and neighboring haciendas were multiplied A real class struggle appeared. The actual situation seems uncertain but the trading economy b

  2. Examination of spotted sand bass (Paralabrax maculatofasciatus) pollutant bioaccumulation in San Diego Bay, San Diego, California

    OpenAIRE

    Chad L. Loflen

    2013-01-01

    The spotted sand bass (Paralabrax maculatofasciatus) is an important recreational sport and subsistence food fish within San Diego Bay, a large industrialized harbor in San Diego, California. Despite this importance, few studies examining the species life history relative to pollutant tissue concentrations and the consumptive fishery exist. This study utilized data from three independent spotted sand bass studies from 1989 to 2002 to investigate PCB, DDT, and mercury tissue concentrations rel...

  3. San Francisco Accelerator Conference

    International Nuclear Information System (INIS)

    'Where are today's challenges in accelerator physics?' was the theme of the open session at the San Francisco meeting, the largest ever gathering of accelerator physicists and engineers

  4. Gas-Oil Relative Permeability and Residual Oil Saturation as Related to Displacement Instability and Dimensionless Numbers Étude de la perméabilité relative gaz-huile et de la saturation en huile résiduelle dans le cas d’une instabilité de déplacement et des nombres sans dimension s’y rapportant

    Directory of Open Access Journals (Sweden)

    Rostami B.

    2009-11-01

    Full Text Available Displacement experiments of the gas-oil system are performed on long core scale models by varying the petrophysical properties and flowing conditions. Experiments are conducted in situations where capillary, gravity and viscous forces are comparable. From oil production history and picture analysis, the threshold for the stability is determined. The experimental findings are comparable to the results of a gradient percolation theory. The effect of destabilized front velocity on relative permeability and residual saturation is investigated. The relative permeabilities determined by using analytical and numerical approaches indicate that higher displacement velocity leads to a higher gas relative permeability and lower oil relative permeability. The remaining oil saturation is found to be much higher for displacement velocity above the stabilized criterion. Displacement morphology including the average remaining oil saturation is then described using dimensionless groups expressed as Bond and capillary number. Experimentally determined remaining oil saturation shows a direct and inverse relation to the capillary and Bond number respectively. Hence, a combined dimensionless group has been proposed to generalize the estimation of remaining and residual oil saturations under the range of dimensionless numbers studied here. Des expériences de déplacement gaz-huile ont été réalisées sur des modèles mis à l’échelle de carottes de grande longueur en faisant varier les propriétés pétrophysiques et les conditions d’écoulement. Pour ces expériences, les forces en présence, capillaires, gravitaires et visqueuses, sont comparables. Le seuil de stabilité est déterminé à partir de l’historique de production et de l’analyse d’images. Les résultats des expériences sont comparables aux conclusions de la théorie de la percolation en gradient. On étudie ensuite l’effet de l’instabilité du front de déplacement sur la perméabilité relative et la saturation résiduelle. Les perméabilités relatives déterminées par des approches analytiques et numériques indiquent qu’une plus grande vitesse de déplacement engendre une plus grande perméabilité relative au gaz et une plus faible perméabilité relative à l’huile. Les résultats indiquent que la saturation en huile à la fin est très supérieure lorsque la vitesse de déplacement se situe au-dessus du critère de stabilité. Les caractéristiques du déplacement, notamment la saturation moyenne en huile en fin de déplacement, sont ensuite décrites à l’aide de groupements sans dimension expressément le nombre de Bond et le nombre capillaire. La saturation en huile en fin de déplacement déterminée expérimentalement s’exprime respectivement par une relation directe avec le nombre capillaire et inverse avec le nombre de Bond. En conséquence, un groupement sans dimension combiné a été proposé afin de généraliser l’estimation de la saturation en fin de déplacement et résiduelle en huile dans la limite des nombres sans dimension étudiés ici.

  5. ABUNDANCE OF THE EXCAVATING SPONGE CLIONA DELITRIX IN RELATION TO SEWAGE DISCHARGE AT SAN ANDRÉS ISLAND, SW CARIBBEAN, COLOMBIA / ABUNDANCIA DE LA ESPONJA EXCAVADORA CLIONA DELITRIX EN RELACIÓN CON DESCARGAS DE AGUAS SERVIDAS EN LA ISLA DE SAN ANDRÉS, CARIBE SUROCCIDENTAL, COLOMBIA

    Scientific Electronic Library Online (English)

    Andia, Chaves-Fonnegra; Sven, Zea; Martha L., Gómez.

    2007-12-01

    Full Text Available Se conoce que la esponja incrustante y excavadora del Caribe Cliona delitrix puede aumentar su abundancia en las cercanías de fuentes de aguas servidas. Para determinar si su notable abundancia actual en los arrecifes de sotavento de la Isla de San Andrés (Caribe SO, Colombia) está relacionada con l [...] a contaminación orgánica generada por las descargas locales de aguas servidas, se obtuvieron datos cuantitativos de densidad y cobertura de esta esponja y otros componentes bentónicos, en transectos de banda y línea en siete estaciones a lo largo de la terraza somera (5- 10 m de profundidad). Se obtuvo mucus de coral para cuantificar la bacteria Escherichia coli, como indicador de la influencia de las plumas de aguas servidas en la biota bentónica. Una regresión potencial negativa entre la cantidad de E. coli en mucus de coral y la distancia del tubo principal de salida de aguas servidas, demostró que las bacterias provienen de los desechos domésticos. Aunque hubo conteos significativos de E. coli solamente hasta 1-2 km de las fuentes de aguas servidas, la influencia general de estas aguas puede extenderse mucho más lejos, ya que se encontraron abundancias moderadas de C. delitrix a lo largo de la terraza somera occidental de San Andrés, aparentemente asociadas con el enriquecimiento general de nutrientes de las aguas servidas. Las abundancias de C. delitrix fueron menores en el suroccidente, lejos de la influencia de aguas servidas, e incrementaron en general hacia las fuentes, pero disminuyeron cerca del tubo de salida principal. Muy cerca de las fuentes de aguas servidas, cualquier efecto positivo en la esponja producido por un aumento en la materia orgánica en suspensión, probablemente es neutralizado por el efecto negativo que el exceso de sedimentación tiene sobre la esponja misma y sobre la cantidad y calidad del sustrato disponible para la colonización. Abstract in english It is known that the encrusting and excavating Caribbean sponge Cliona delitrix may increase its abundance near sources of sewage. To ascertain whether its current conspicuousness in leeward reefs of San Andrés Island (SW Caribbean, Colombia) is related to organic pollution from local raw sewage dis [...] charges, quantitative data on density and cover of this sponge and other benthic components was obtained from belt and line transects at seven stations along the shallow (5-10 m deep) terrace. Coral mucus was sampled to quantify Escherichia coli bacteria, as an approximate indicator of sewage plume influence on benthic biota. A negative multiplicative regression between amount of E. coli in coral mucus and distance from the main raw sewage outlet demonstrated the domestic-wastes origin of the bacteria. Whereas significant E. coli counts occurred only up to 1-2 km from sewage sources, overall sewage influence may extend further as moderate C. delitrix abundances occurred throughout the West shallow terrace of San Andrés, apparently associated to the overall nutrient enrichment from sewage. C. delitrix abundances were lower in the Southwest, farthest from sewage influence, and generally increased towards sewage sources, but decreased near the main sewage outlet. Close to sewage sources, any positive effect on the sponge brought about by the increase in suspended organic matter is probably outweighed by the negative effect that excessive sedimentation has on the sponge itself, and on the quantity and quality of substratum available for settlement.

  6. Organochlorine and PBDE concentrations in relation to cytochrome P450 activity in livers of Forster's terns (Sterna forsteri) and Caspian terns (Hydroprogne caspia), in San Francisco Bay, California.

    Science.gov (United States)

    Herring, Garth; Ackerman, Joshua T; Eagles-Smith, Collin A; Adelsbach, Terrence L; Melancon, Mark J; Stebbins, Katie R; Hoffman, David J

    2010-04-01

    We measured halogenated organic contaminants (HOCs) [polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs), and dichloro-diphenyl-trichloroethane (DDT)] and P450 [e.g., ethoxyresorufin-O-dealkylase (EROD)] stress in livers from Caspian tern (Hydroprogne caspia) adults and Forster's tern (Sterna forsteri) adults and chicks in San Francisco Bay (SFB). Penta BDEs and tetra PBDEs composed 46-66% of SigmaPBDE in terns. PCB homologues di, tri, penta, hexa, and hepta composed 93-95% of SigmaPCBs and p'p-DDE composed 82-98% of all SigmaDDTs. We found similar concentrations of SigmaPBDEs [mean micrograms per gram wet weight (ww) +/- standard error = 0.4 +/- 0.1], SigmaPCBs (5.9 +/- 1.6), and SigmaDDTs (0.6 +/- 0.1) among species, sexes, and regions. However, concentrations were higher in Forster's tern adults than chicks (SigmaPBDEs = 0.4 +/- 0.1 and 0.1 +/- 0.1; SigmaPCBs = 7.08 +/- 2.4 and 2.4 +/- 1.4; SigmaDDTs = 0.5 +/- 0.1 and 0.1 +/- 0.1; respectively), and there was a nonsignificant trend of elevated SigmaPBDEs and SigmaPCBs for adult Forster's terns in the Central South Bay and Lower South Bay portions of SFB. Combined Forster's tern and Caspian tern SigmaDDTs bioaccumulated similarly to selenium, but not mercury, and there was a nonsignificant but positive trend for SigmaPBDEs and SigmaPCBs bioaccumulation with mercury. P450 protein activity was higher in adult Forster's terns than Caspian terns, higher in Central South Bay than in Lower South Bay, and higher in adult Forster's terns than in chicks. PMID:19653030

  7. Mercury concentrations in blood and feathers of prebreeding Forster's terns in relation to space use of San Francisco Bay, California, USA, habitats

    Science.gov (United States)

    Ackerman, J.T.; Eagles-Smith, C. A.; Takekawa, J.Y.; Bluso, J.D.; Adelsbach, T.L.

    2008-01-01

    We examined mercury concentrations and space use of prebreeding Forster's terns (Sterna forsteri) in San Francisco Bay, California, USA, to assess factors influencing mercury levels in piscivorous birds. In 2005 and 2006, we collected blood and feathers from 122 Forster's terns and radio-marked and tracked 72 terns to determine locations of dietary mercury uptake. Capture site and capture date were the most important factors explaining variation in blood mercury concentrations (geometric mean ?? standard error: 1.09 ?? 0.89 ??g/g wet wt), followed by sex and year. Accordingly, radiotelemetry data revealed that Forster's terns generally remained near their site of capture and foraged in nearby salt ponds, managed and tidal marshes, and tidal flats. In contrast, capture site and capture date were not important factors explaining variation in feather mercury concentrations, probably because feathers were grown on their wintering grounds several months prior to our sampling. Instead, sex and year were the most important factors explaining mercury concentrations in breast feathers (9.57 ?? 8.23 ??g/g fresh wt), and sex was the most important factor for head feathers (6.94 ?? 7.04 ??g/g fresh wt). Overall, 13 and 22% of prebreeding Forster's terns were estimated to be at high risk for deleterious effects due to mercury concentrations in blood (>3.0 ??g/g wet wt) and feathers (>20.0 ??g/g fresh wt), respectively. Breeding terns are likely to be even more at risk because blood mercury concentrations more than tripled during the 45-d prebreeding time period. These data illustrate the importance of space use and tissue type in interpreting mercury concentrations in birds. ?? 2008 SETAC.

  8. 30 January 2012 - Ecuadorian Ambassador Gallegos Chiriboga, Permanent Representative to the United Nations Office and other International Organisations at Geneva and San Francisco de Quito University Vice Chancellor C. Montùfar visiting CMS surface facilities and underground experimental area with CMS Collaboration L. Sulak and Collaboration Deputy Spokesperson T. Camporesi, throughout accompanied by Head of International Relations F. Pauss.

    CERN Document Server

    Michael Hoch

    2012-01-01

    30 January 2012 - Ecuadorian Ambassador Gallegos Chiriboga, Permanent Representative to the United Nations Office and other International Organisations at Geneva and San Francisco de Quito University Vice Chancellor C. Montùfar visiting CMS surface facilities and underground experimental area with CMS Collaboration L. Sulak and Collaboration Deputy Spokesperson T. Camporesi, throughout accompanied by Head of International Relations F. Pauss.

  9. Heidegger y el cristianismo de San Pablo y San Agustín

    OpenAIRE

    Francisco De Lara

    2007-01-01

    Este texto intenta mostrar el sentido de la interpretación de San Pablo y San Agustín que Heidegger lleva a cabo en sus primeros cursos de Friburgo. En concreto, se pretende apuntar al motivo por el que el joven Heidegger recupera aspectos del cristianismo para su proyecto filosófico y cuáles son los elementos concretos que las Epístolas de San Pablo y las Confesiones de San Agustín le aportan. De esta forma, se apreciará, entre otras cosas, la importancia concedida por Heidegger a la acentua...

  10. SANS studies of polymers

    International Nuclear Information System (INIS)

    Before small-angle neutron scattering (SANS), chain conformation studies were limited to light and small angle x-ray scattering techniques, usually in dilute solution. SANS from blends of normal and labeled molecules could give direct information on chain conformation in bulk polymers. Water-soluble polymers may be examined in H2O/D2O mixtures using contrast variation methods to provide further information on polymer structure. This paper reviews some of the information provided by this technique using examples of experiments performed at the National Center for Small-Angle Scattering Research (NCSASR)

  11. San Joaquin-Tulare Conjunctive Use Model: Detailed model description

    Energy Technology Data Exchange (ETDEWEB)

    Quinn, N.W.T.

    1992-03-01

    The San Joaquin - Tulare Conjunctive Use Model (SANTUCM) was originally developed for the San Joaquin Valley Drainage Program to evaluate possible scenarios for long-term management of drainage and drainage - related problems in the western San Joaquin Valley of California. A unique aspect of this model is its coupling of a surface water delivery and reservoir operations model with a regional groundwater model. The model also performs salinity balances along the tributaries and along the main stem of the San Joaquin River to allow assessment of compliance with State Water Resources Control Board water quality objectives for the San Joaquin River. This document is a detailed description of the various subroutines, variables and parameters used in the model.

  12. Remembering San Diego

    International Nuclear Information System (INIS)

    After 6 years of existence the ITER EDA project in San Diego, USA, was terminated by desition of the US Congress. This article describes how nice it was for everybody as long as it lasted and how sad it is now

  13. Examination of spotted sand bass (Paralabrax maculatofasciatus pollutant bioaccumulation in San Diego Bay, San Diego, California

    Directory of Open Access Journals (Sweden)

    Chad L. Loflen

    2013-11-01

    Full Text Available The spotted sand bass (Paralabrax maculatofasciatus is an important recreational sport and subsistence food fish within San Diego Bay, a large industrialized harbor in San Diego, California. Despite this importance, few studies examining the species life history relative to pollutant tissue concentrations and the consumptive fishery exist. This study utilized data from three independent spotted sand bass studies from 1989 to 2002 to investigate PCB, DDT, and mercury tissue concentrations relative to spotted sand bass age and growth in San Diego Bay, with subsequent comparisons to published pollutant advisory levels and fishery regulations for recreational and subsistence consumption of the species. Subsequent analysis focused on examining temporal and spatial differences for different regions of San Diego Bay. Study results for growth confirmed previous work, finding the species to exhibit highly asymptotic growth, making tissue pollutant concentrations at initial take size difficult if not impossible to predict. This was corroborated by independent tissue concentration results for mercury, which found no relationship between fish size and pollutant bioaccumulation observed. However, a positive though highly variable relationship was observed between fish size and PCB tissue concentration. Despite these findings, a significant proportion of fish exhibited pollutant levels above recommended state recreational angler consumption advisory levels for PCBs and mercury, especially for fish above the minimum take size, making the necessity of at-size predictions less critical. Lastly, no difference in tissue concentration was found temporally or spatially within San Diego Bay.

  14. Perfil local y agroindustria palmera: explorando el caso de San Alberto y San Martín (Cesar) / Profil local et agro-industrie de la palmiculture: exploration du cas de San Alberto et San Martín (Cesar) / Local Profile and Palm Tree Agro-Industry: Exploring the case of San Albert o and San Martin (Cesar)

    Scientific Electronic Library Online (English)

    Mónica, Hurtado; Giovanni Andrés, Hernández-Salazar.

    2010-07-01

    Full Text Available Este artículo establece el perfil municipal de dos localidades en Colombia tradicionalmente palmeras: San Alberto y San Martín (Cesar). En particular, se estudian indicadores socioeconómicos, finanzas públicas y dinámica del conflicto armado en ambos municipios durante los últimos diez años. Se enco [...] ntró que San Alberto, con mayor actividad palmera que San Martín, tiene menores niveles de pobreza y mejores finanzas públicas. Sin embargo, en relación a educación y salud, ambos municipios presentan estándares precarios. En cuanto a seguridad y conflicto armado, se estableció que el número de secuestros y homicidios se redujeron en ambas localidades, pero la población civil sigue siendo víctima de desplazamiento forzado. Abstract in english This article establishes the municipal profile of two places in Colombia which are traditionally known for their palm tree production: San Alberto and San Martin (Cesar). Socioeconomic indicators, public finance, and armed conflict dynamics during the last ten years in both places are studied in par [...] ticular. It was found out that San Alberto, with greater palm tree activity than San Martin, has lower poverty levels and better public finance. Nevertheless, both municipalities show fragile standards in relation to education and health. As for safety and armed conflict, it was determined that the number of kidnappings and murders decreased in both places, but civilians are still victims of forced displacement.

  15. Transition de phase quantique de type verrouillage-deverrouillage dans les canaux lineaires coherents des phases en rayures dans les doubles puits quantiques sous champ magnetique perpendiculaire

    Science.gov (United States)

    Faribault, Alexandre

    On peut creer un gaz electronique bidimensionnel en utilisant le potentiel de confinement d'une couche mince d'un semiconducteur dans un substrat fait d'une autre semiconducteur de gap plus eleve. L'ajout d'un champ magnetique perpendiculaire au plan de confinement modifie de facon drastique les proprietes du gaz electronique. Pour des densites et des valeurs du champ magnetique adequatement choisies, on obtient un etat fondamental en onde de densite de charge. Dans un systeme compose de deux de ces gaz bidimensionnels suffisamment rapproches l'un de l'autre, on prevoit theoriquement l'existence d'un etat fondamental compose d'une onde de densite de charge dans chacun des puits et d'une serie de regions lineaires ou l'on a une delocalisation coherente des electrons entre les deux puits. Dans cette these, on etudie le comportement a temperature nulle de cet etat fondamental en rayures coherentes. L'etude numerique des modes collectifs de ces phases laisse croire qu'un deverrouillage des canaux coherents est envisageable dans ce systeme. Afin d'etudier cette possibilite, nous construisons d'abord un modele effectif de canaux quasi-unidimensionnels couples qui permettent de reproduire correctement les excitations collectives a basse energie de la phase en rayures coherentes du double puits quantique. Dans un systeme de coordonnees adequatement choisi, ces excitations peuvent etre decrites par des ondes de pseudospin. Les parametres de ce modele effectif simple peuvent etre extraits des calculs des fonctions de reponse realises dans l'approximation Hartree-Fock dependante du temps (appelee aussi Generalized Random Phase Approximation). On constate l'efficacite de ce modele a decrire la dynamique basse energie du systeme pour une certaine plage de distances inter-puits. En retirant de ce modele les contributions a l'hamiltonien provenant des couplages de type Josephson entre les canaux, on obtient alors un systeme ou les canaux sont deverrouilles. Un traitement en groupe de renormalisation perturbatif des couplages Josephson generaux permet alors de conclure si la phase deverrouillee peut etre stable lorsque l'on traite les fluctuations quantiques qui ne sont pas incluses dans l'approximation GRPA. Ces calculs nous permettent de conclure que la phase en rayures coherentes dans les doubles puits quantiques sous champ magnetique perpendiculaire est telle que les canaux coherents demeurent toujours verrouilles et ce, peu importe la valeur de la distance inter-puits. On envisage par contre que l'ajout d'un biais electrostatique pourrait permettre de modifier les proprietes du double puits de facon telle qu'une phase en rayures deverrouillees puisse etre stabilisee par les fluctuations quantiques.

  16. Regional Geologic Map of San Andreas and Related Faults in Carrizo Plain, Temblor, Caliente and La Panza Ranges and Vicinity, California; A Digital Database

    Science.gov (United States)

    Dibblee, T. W., (compiler); Digital database compiled by Graham, S. E.; Mahony, T.M.; Blissenbach, J.L.; Mariant, J.J.; Wentworth, C.M.

    1999-01-01

    This Open-File Report is a digital geologic map database. The report serves to introduce and describe the digital data. There is no paper map included in the Open-File Report. The report includes PostScript and PDF plot files that can be used to plot images of the geologic map sheet and explanation sheet. This digital map database is prepared from a previously published map by Dibblee (1973). The geologic map database delineates map units that are identified by general age, lithology, and clast size following the stratigraphic nomenclature of the U.S. Geological Survey. For descriptions of the units, their stratigraphic relations, and sources of geologic mapping, consult the explanation sheet (of99-14_4b.ps or of99-14_4d.pdf), or the original published paper map (Dibblee, 1973). The scale of the source map limits the spatial resolution (scale) of the database to 1:125,000 or smaller. For those interested in the geology of Carrizo Plain and vicinity who do not use an ARC/INFO compatible Geographic Information System (GIS), but would like to obtain a paper map and explanation, PDF and PostScript plot files containing map images of the data in the digital database, as well as PostScript and PDF plot files of the explanation sheet and explanatory text, have been included in the database package (please see the section 'Digital Plot Files', page 5). The PostScript plot files require a gzip utility to access them. For those without computer capability, we can provide users with the PostScript or PDF files on tape that can be taken to a vendor for plotting. Paper plots can also be ordered directly from the USGS (please see the section 'Obtaining Plots from USGS Open-File Services', page 5). The content and character of the database, methods of obtaining it, and processes of extracting the map database from the tar (tape archive) file are described herein. The map database itself, consisting of six ARC/INFO coverages, can be obtained over the Internet or by magnetic tape copy as described below. The database was compiled using ARC/INFO, a commercial Geographic Information System (Environmental Systems Research Institute, Redlands, California), with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). The ARC/INFO coverages are stored in uncompressed ARC export format (ARC/INFO version 7.x). All data files have been compressed, and may be uncompressed with gzip, which is available free of charge over the Internet via links from the USGS Public Domain Software page (http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/public.html). ARC/INFO export files (files with the .e00 extension) can be converted into ARC/INFO coverages in ARC/INFO (see below) and can be read by some other Geographic Information Systems, such as MapInfo via ArcLink and ESRI's ArcView.

  17. Avec ou sans voiture

    OpenAIRE

    Rigal, Alexandre

    2015-01-01

    L’urbain est-il à construire avec ou sans la voiture ? Voici la question à laquelle répond l’ouvrage collectif Ville et Voiture, réalisé sous la direction d’Ariella Masboungi et soutenu par le ministère français du logement, de l’égalité des territoires et de la ruralité. Si les différents types de textes proposés égrainent certains dégâts subis par les espaces et les habitants du fait de l’automobile, celle-ci constitue malgré tout pour les auteurs un horizon indépassable. En dépit du parado...

  18. Brechas intraclásticas (tsunamitas?) en el tope de la Formación San Juan (Darriwiliano), Precordillera de San Juan, Argentina: microfacies y Conodontes / Intraclastic breccias (tsunamites) on the top of San Juan Formation (Darriwillian), San Juan Precordillera, Argentina: microfacies and conodonts

    Scientific Electronic Library Online (English)

    Ana, Mestre.

    2011-06-01

    Full Text Available Se describen por primera vez niveles de brechas intraclásticas en el último metro de la Formación San Juan, Precordillera Central (San Juan-Argentina). Las características microfaciales, relaciones litofaciales y las variaciones en las poblaciones de conodontes asociadas a las mismas permiten interp [...] retarlas como depósitos producidos por eventos erosivos de gran magnitud que habrían sido generados por tsunamis o tormentas fuera de serie que afectaron la rampa carbonática durante el Darriwiliano medio. Abstract in english This paper describes for the first time intraclastic breccias beds in the last meter of the San Juan Formation, Central Precordillera (San Juan, Argentina). The microfacial features, lithofacial relations and variations in conodont population linked with the conglomerate allow us to defineinterpreti [...] ng that these deposits were produced by a great eroding event, possibly generated by a tsunami or storms out of series which has affected the carbonate ramp during the Middle Darriwilian.

  19. On the stability, the periodic solutions and the resolution of certain types of non linear equations, and of non linearly coupled systems of these equations, appearing in betatronic oscillations; Sur la stabilite, les solutions periodiques et la resolution de certaines categories d'equations et systemes d'equations differentielles couplees non lineaires apparaissant dans les oscillations betatroniques

    Energy Technology Data Exchange (ETDEWEB)

    Valat, J. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1960-12-15

    Universal stability diagrams have been calculated and experimentally checked for Hill-Meissner type equations with square-wave coefficients. The study of these equations in the phase-plane has then made it possible to extend the periodic solution calculations to the case of non-linear differential equations with periodic square-wave coefficients. This theory has been checked experimentally. For non-linear coupled systems with constant coefficients, a search was first made for solutions giving an algebraic motion. The elliptical and Fuchs's functions solve such motions. The study of non-algebraic motions is more delicate, apart from the study of nonlinear Lissajous's motions. A functional analysis shows that it is possible however in certain cases to decouple the system and to find general solutions. For non-linear coupled systems with periodic square-wave coefficients it is then possible to calculate the conditions leading to periodic solutions, if the two non-linear associated systems with constant coefficients fall into one of the categories of the above paragraph. (author) [French] Pour les equations du genre de Hill-Meissner a coefficients creneles, on a calcule des diagrammes universels de stabilite et ceux-ci ont ete verifies experimentalement. L'etude de ces equations dans le plan de phase a permis ensuite d'etendre le calcul des solutions periodiques au cas des equations differentielles non lineaires a coefficients periodiques creneles. Cette theorie a ete verifiee experimentalement. Pour Jes systemes couples non lineaires a coefficients constants, on a d'abord cherche les solutions menant a des mouvements algebriques. Les fonctions elliptiques et fuchsiennes uniformisent de tels mouvements. L'etude de mouvements non algebriques est plus delicate, a part l'etude des mouvements de Lissajous non lineaires. Une analyse fonctionnelle montre qu'il est toutefois possible dans certains cas de decoupler le systeme et de trouver des solutions generales. Pour les systemes couples non lineaires a coefficients periodiques creneles, il est alors possible de calculer les conditions menant a des solutions periodiques, si les deux systemes non lineaires adjoints a coefficients constants, entrent dans une des categories du paragraphe precedent. (auteur)

  20. Riparian Habitat - San Joaquin River

    Data.gov (United States)

    California Department of Resources — The immediate focus of this study is to identify, describe and map the extent and diversity of riparian habitats found along the main stem of the San Joaquin River,...

  1. 75 FR 39166 - Safety Zone; San Francisco Giants Baseball Game Promotion, San Francisco, CA

    Science.gov (United States)

    2010-07-08

    ...San Francisco Giants Baseball Game Promotion on July 16, 2010...voluntary consensus standards. Environment We have analyzed this rule...significant effect on the human environment. This rule is categorically...San Francisco Giants Baseball Game Promotion, San...

  2. Factores presentes en la deserción universitaria en la Facultad de Psicología de la Universidad De San Buenaventura, sede Bogotá en el periodo comprendido entre 1998-2009 / Factors related to the college dropout in the Faculty of Psychology at San Buenaventura University Bogotá in the period 1998-2009

    Scientific Electronic Library Online (English)

    María Juliana, Mateus Rodríguez; Consuelo, Herrera Hernández; Catalina, Perilla Suárez; Gilma, Parra Quecan; Anderssen, Vera Maldonado.

    2011-01-01

    Full Text Available El objetivo del presente estudio fue describir los factores socio demográficos y las categorías del modelo psicológico de Ethington, presentes en la deserción universitaria, evaluados por medio de una encuesta telefónica diseñada con base en estas categorías y validada por jueces. Los participantes [...] tenían entre 16 y 32 años, solteros, de estratos 3 y 4. Los resultados descriptivos permiten concluir que existen diversas causas para que se presente la deserción en la Facultad de Psicología de la Universidad San Buenaventura, sede Bogotá. Dificultades tales como incompatibilidad del horario de estudio con el horario de trabajo, escasa información respecto al programa elegido al ingresar a la Universidad y dificultades de salud. Es importante destacar que la categoría que presentó el porcentaje más alto fue la de apoyo económico familiar con un 95%. Abstract in english The purpose of this study was to describe the categories as well as the socio-demographic aspects of Ethington's psychological model, present in the university dropout. In order to do that, those aspects were assessed using a telephone survey validated by judges. Participants were between 16 and 32 [...] years, single, from 3 and 4 social stratum. The results show that there are various reasons for dropout in the Faculty of Psychology at the University of San Buenaventura, such as: incompatibility between study and work schedules, unsuitable or insufficient information when going to University and finally, health difficulties.

  3. Vegetation - San Felipe Valley [ds172

    Data.gov (United States)

    California Department of Resources — This Vegetation Map of the San Felipe Valley Wildlife Area in San Diego County, California is based on vegetation samples collected in the field in 2002 and 2005...

  4. Relativity

    CERN Document Server

    Brewster, Hilary D

    2009-01-01

    The theory of relativity has become a cornerstone of modern physics. Over the course of time it has been scrutinized in a multitude of experiments and has always been verified with high accuracy. The correctness of this theory can no longer be called into question. Right after its discovery by Albert Einstein in 1905, special relativity was only gradually accepted because it made numerous predictions contradicting common sense, fervently castigated by Einstein, and also defied experiment for too long a time. It was only with the advent of particle or high energy physics that matter could be ac

  5. Relativity

    CERN Document Server

    Einstein, Albert

    2013-01-01

    Time magazine's ""Man of the Century"", Albert Einstein is the founder of modern physics and his theory of relativity is the most important scientific idea of the modern era. In this short book, Einstein explains, using the minimum of mathematical terms, the basic ideas and principles of the theory that has shaped the world we live in today. Unsurpassed by any subsequent books on relativity, this remains the most popular and useful exposition of Einstein's immense contribution to human knowledge.With a new foreword by Derek Raine.

  6. Sinopsis de las Pteridotifas de la Provincia de San Luis (Argentina) / Pteridophytic Flora of San Luis Province (Argentina)

    Scientific Electronic Library Online (English)

    Elias Ramon, De La Sota; María Lujan, Luna; Gabriela Elena, Giudice; Juan Pablo, Ramos Giacosa.

    2009-12-01

    Full Text Available El objetivo de este estudio es dar conocer los helechos y grupos emparentados que habitan en la Provincia de San Luis (Argentina). Para ello se consultaron distintos herbarios y se realizó un viaje de campana. En esta provincia se registra una relativamente baja diversidad específica (42 taxones) co [...] mparada con una alta diversidad genérica (20 géneros). Los géneros mejor representados son Cheilanthes (8 taxones) y Blechnum (6 taxones). Se dan a conocer 6 nuevas citas para la provincia. Las Pteridofitas se encuentra principalmente en las Sierras de San Luis y Comechingones, observándose una influencia florística andino-pampeana (39 taxa), austro-brasilena (22 taxa) y austral (9 taxa). Se presentan iconografías, distribución geográfica y características ecológicas de cada taxón. Abstract in english The aim of this study was to reveal the ferns and allied groups that inhabit at San Luis Province, Argentina. For this purpose different herbaria were consulted and a field trip was performed. In this province, a low diversity of species (42) in comparison to a relatively high diversity of genera (2 [...] 0) is registered. The more representative genera are Cheilanthes (8 taxa) and Blechnum (6 taxa). Six taxa are registered for the first time in San Luis. In this province Pteridophytes grow mainly at Sierras of San Luis and Comechingones, showing Andean-Pampasican (39 taxa), Southern-Brazilian (22 taxa) and Austral (9 taxa) floristic influences. The iconography, geographical distribution and ecology of each taxon are also given.

  7. Structure of microemulsions by SANS

    International Nuclear Information System (INIS)

    Small-angle neutron scattering (SANS) has been used to determine the structure of microemulsions in the system hydrocarbon-water-sodium di-ethylhexylsulfosuccinate (AOT). SANS spectra taken in a deuterated solvent showed a perfect Guinier fit with a radius of gyration of 15A regardless of the amount of AOT from 0.1 to 5% present. By varying the proportions of deuterated and undeuterated solvent to vary the contrast between the micelles and the solvent, it is concluded that the micelles are basically monodispersed spherical aggregations of 22 AOT molecules

  8. The San Bernabe power substation; La subestacion San Bernabe

    Energy Technology Data Exchange (ETDEWEB)

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

    1997-12-31

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

  9. Relationalism

    CERN Document Server

    Anderson, Edward

    2012-01-01

    This article contributes to the debate of the meaning of relationalism and background independence, which has remained of interest in theoretical physics from Newton versus Leibniz through to foundational issues for today's leading candidate theories of quantum gravity. I contrast and compose the substantially different Leibniz--Mach--Barbour (LMB) and Rovelli--Crane (RC) uses of the word `relational'. Leibniz advocated primary timelessness and Mach that `time is to be abstracted from change'. I consider 3 distinct viewpoints on Machian time: Barbour's, Rovelli's and my own. I provide four expansions on Barbour's taking configuration space to be primary: to (perhaps a weakened notion of) phase space, categorizing, perspecting and propositioning. Categorizing means considering not only object spaces but also the corresponding morphisms and then functors between such pairs. Perspecting means considering the set of subsystem perspectives; this is an arena in which the LMB and Rovelli approaches make contact. By ...

  10. Application of the Sea-Level Affecting Marshes Model (SLAMM 6) to San Pablo Bay NWR

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This SeaLevel Affecting Marshes Model SLAMM report presents a model for projecting the effects of sealevel rise on coastal marshes and related habitats on San Pablo...

  11. Radiation accident in San Salvador

    International Nuclear Information System (INIS)

    On the base of a radiation accident of tragic consequences which took place in 1989 in San Salvador the author formulates conclusions that are also important for the Polish users of instruments with isotopic sources. Only high qualifications, permanent training and proper exploitation of such instruments would ensure safety of the employees. (author)

  12. Bancos de cholga Aulacomya atra atra (Molina) (Bivalvia: Mytilidae) del golfo San José (Chubut, Argentina): Diversidad y relaciones con facies afines / Ribbed mussel Aulacomya atra atra (Molina) (Bivalvia: Mytilidae) beds of the San José Gulf (Chubut, Argentina): Diversity and relationships with related facies

    Scientific Electronic Library Online (English)

    Héctor E, Zaixso.

    2004-12-01

    Full Text Available Se estudió la diversidad y relaciones entre diferentes poblamientos de la biocenosis de raspadores-suspensívoros del golfo San José (Chubut, Argentina: 42º20’S; 64º20’W), con énfasis en los bancos de cholga Aulacomya atra atra. Las relaciones entre poblamientos se estudiaron a través de un análisis [...] de correspondencias sin tendencias y las relaciones entre poblamientos y factores ambientales a través de un análisis factorial de correspondencias. Para el estudio de la diversidad se utilizaron los índices de diversidad de Hill (N0, N1 y N2), así como el índice de uniformidad derivado (E=N2/N1). Se analizaron, dentro del contexto de estos poblamientos, las relaciones entre la diversidad observada con la resistencia a los disturbios, la presencia de depredadores y con la sucesión y aumento de la heterogeneidad espacial. Se concluyó que: (1) Los bancos de cholga sobre sustratos duros, en razón de hallarse en sitios protegidos del oleaje producido por vientos locales y con una matriz física fijada firmemente a la roca mantienen una alta riqueza específica y una alta uniformidad. (2) Los poblamientos de fondos blandos de mejillón Mytilus edulis platensis en condiciones de estabilidad, evolucionan hacia bancos mixtos con cholgas lo que implica aumento en la complejidad del sustrato, en la heterogeneidad espacial del banco y en la riqueza específica. Estos bancos mixtos al quedar sujetos a disturbios físicos revertirían el proceso de sucesión. (3) Los bancos de vieira tehuelche Aequipecten tehuelchus son propios de ambientes permanentemente disturbados por movimientos del agua y poseen características de baja uniformidad y baja riqueza específica. Con disturbios intensos e infrecuentes estos bancos son eliminados del sitio que ocupaban, ocasionándose arribazones de las especies desprendidas. (4) Los bancos mixtos de cholga-vieira tehuelche son facies alternativas a los bancos de vieira y tienen lugar en sitios protegidos Abstract in english The relationships between different assemblages of the grazer-suspensivore biocoenosis and their diversities were studied at the San José Gulf (Chubut Province, Argentina: 42º20’S; 64º20’W), with emphasis on the facies of the ribbed mussel Aulacomya atra atra. The ordination analysis of the assembla [...] ges species composition was performed using detrended correspondence analysis and the relationships of the assemblages with the environmental factors were analysed using factorial correspondence analysis. The Hill diversity indices (N0, N1, N2), and the evenness derived index (E=N2/N1) were calculated. It was concluded that: (1) The ribbed mussel beds on hard sustrate have high species richness and high equitability, because the rocks provides firm surfaces for byssal attachment and these beds are usually found in protected localities. (2) The soft bottom assemblages with the mussel Mytilus edulis platensis, under conditions of environmental stability, evolve towards mixed beds with ribbed mussel; this process implies increased sustrate complexity, increased spatial heterogeneity and higher species richness. This successional process can be reverted if the mixed bed are affected by strong physical disturbance which can dislodge the assemblages. (3) Beds of the scallop Aequipecten tehuelchus are found at sites permanently disturbed by waves generated by local winds, they have low equitability and low species richness. When the environmental disturbance is very intense the bed is dislodged and big quantities of individuals are beach stranded. (4) The mixed beds of ribbed mussel and Aequipecten tehuelchus are facies which are alternative to Aequipecten beds and they are found in protected sites

  13. Cuartel San Carlos. Yacimiento veterano

    Directory of Open Access Journals (Sweden)

    Mariana Flores

    2007-01-01

    Full Text Available El Cuartel San Carlos es un monumento histórico nacional (1986 de finales del siglo XVIII (1785-1790, caracterizado por sufrir diversas adversidades en su construcción y soportar los terremotos de 1812 y 1900. En el año 2006, el organismo encargado de su custodia, el Instituto de Patrimonio Cultural del Ministerio de Cultura, ejecutó tres etapas de exploración arqueológica, que abarcaron las áreas Traspatio, Patio Central y las Naves Este y Oeste de la edificación. Este trabajo reseña el análisis de la documentación arqueológica obtenida en el sitio, a partir de la realización de dicho proyecto, denominado EACUSAC (Estudio Arqueológico del Cuartel San Carlos, que representa además, la tercera campaña realizada en el sitio. La importancia de este yacimiento histórico, radica en su participación en los acontecimientos que propiciaron conflictos de poder durante el surgimiento de la República y en los sucesos políticos del siglo XX. De igual manera, se encontró en el sitio una amplia muestra de materiales arqueológicos que reseñan un estilo de vida cotidiana militar, así como las dinámicas sociales internas ocurridas en el San Carlos, como lugar estratégico para la defensa de los diferentes regímenes que atravesó el país, desde la época del imperialismo español hasta nuestros días.

  14. Sintered materials studied by SANS

    International Nuclear Information System (INIS)

    Complete text of publication follows. The small angle scattering of compacted and sintered single phase materials with open or closed porosity can be described by the two phase model. During sintering, the decrease of pore volume is accompanied with decreasing internal surface measured by SANS [1]. Such investigation can be extended to the field of technically relevant multiphase materials as well, e.g. doped tunsten, SiN ceramics and WC-Co composite made from nano-crystalline powder. The deformation of remaining porosity after sintering can be monitored by 2D anisotropy of SANS distribution as the sintered body is processed through several steps of thermomechanical treatment. The elongation of pores or stable bubbles, e.g. K gas filled bubbles in doped W [2], follows the macroscopic deformation of the body. Heat treatment, however, causes spheroidization with vanishing SANS anisotropy. Our investigation using the isointensity contour map method allows establishing a new description of mechanisms of thermomechanical processing. (author) [1] O. Blaschko, R. Glas, G. Krexner and P. Weinzierl, Physical Review Letters 68 970-973 (1992); [2] O. Horacsek, M. Menyhard and J. Labar, High Temperature Materials and Processes 14 207-213 (1995)

  15. Ecología térmica de la lagartija endémica Liolaemus eleodori (Iguania: Liolaemidae) en el Parque Nacional San Guillermo, San Juan, Argentina / Thermal ecology of the endemic lizard Liolaemus eleodori (Iguania: Liolaemidae) in National Park San Guillermo, San Juan, Argentina

    Scientific Electronic Library Online (English)

    Héctor J., Villavicencio; Juan C., Acosta; Graciela M., Blanco; José A., Marinero.

    2012-06-01

    Full Text Available La ecología térmica de la lagartija endémica Liolaemus eleodori fue estudiada en el Parque Nacional San Guillermo, provincia de San Juan, Argentina. Los datos fueron colectados durante diciembre de 2004 y febrero de 2005. Se registró la temperatura cloacal (Tb), substrato (Ts) y aire (Ta), con un te [...] rmómetro de lectura rápida. Liolaemus eleodori presentó una estrategia termorregulatoria de tipo termoconformista con un patrón de actividad de tipo unimodal y uso preferencial del microhábitat suelo desnudo (desprovisto completamente de vegetación). Nuestros datos sugieren que la estrategia termorregulatoria, el uso del espacio y el tiempo están estrechamente relaciondos con las condiciones climáticas rigurosas del sitio de estudio. Abstract in english The thermal ecology of the endemic lizard Liolaemus eleodori was studied at the San Guillermo National Park, Province of San Juan, Argentina. Data were collected during December 2004 and February 2005. Cloacal (Tc), substrate (Ts) and air (Ta) temperatures were registered using a quick reading therm [...] ometer. Liolaemus eleodori exhibited a thermo-conformist thermoregulatory strategy with a unimodal pattern of activity, showing a marked preference for a naked ground microhabitat (completely free of vegetation). Our data suggest that the thermoregulatory strategy and use of space and time is strictly related to the harsh climatic conditions of the study site.

  16. San Onofre - the evolution of outage management

    International Nuclear Information System (INIS)

    With the addition of units 2 and 3 to San Onofre nuclear station in 1983 and 1984, it became evident that a separate group was needed to manage outages. Despite early establishment of a division to handle outages, it was a difficult journey to make the changes to achieve short outages. Early organizational emphasis was on developing an error-free operating environment and work culture. This is difficult for a relatively large organization at a three-unit site. The work processes and decision styles were designed to be very deliberate with many checks and balances. The organization leadership and accountability were focused in the traditional operations, maintenance, and engineering divisions. Later, our organization emphasis shifted to achieving engineering excellence. With a sound foundation of operating and engineering excellence, our organizational focus has turned to achieving quality outages. This means accomplishing the right work in a shorter duration and having the units run until the next refueling

  17. 77 FR 34988 - Notice of Inventory Completion: San Diego State University, San Diego, CA

    Science.gov (United States)

    2012-06-12

    ...dissertation for the University of California, Riverside...collection at San Diego State University appears to have been...back dirt by an unknown student and brought back to San Diego State University. The remains are...

  18. 75 FR 27432 - Security Zone; Golden Guardian 2010 Regional Exercise; San Francisco Bay, San Francisco, CA

    Science.gov (United States)

    2010-05-17

    ...reduce burden. Protection of Children We have analyzed this rule...Order 13045, Protection of Children from Environmental Health Risks...may disproportionately affect children. Indian Tribal Governments...Golden Guardian 2010 Regional Exercise; San Francisco Bay, San...

  19. Darriwilian Conodont Biostratigraphy of the Las Chacritas Formation, Central Precordillera (San Juan Province, Argentina)

    OpenAIRE

    S. Heredia

    2005-01-01

    The Las Chacritas Fm in the type section in the Sierra de La Trampa, Central Precordillera (San Juan Province) was deposited in an outer carbonate ramp setting that evolved from relatively deep to shallow water. Samples from this well-exposed Middle Ordovician section yielded collections of low-diversity conodont faunas stratigraphically significant. The top of the underlying San Juan Fm and the lower and middle parts of the Las Chacritas Fm contain conodonts representative of the Lenodus var...

  20. Children at danger: injury fatalities among children in San Diego County

    OpenAIRE

    Fraga, Andrea M. A.; Fraga, Gustavo P.; Stanley, Christina; Costantini, Todd W.; Coimbra, Raul

    2010-01-01

    External causes of death are important in the pediatric population worldwide. We performed an analysis of all injury-fatalities in children between ages zero and 17 years, between January 2000 and December 2006, in San Diego County, California, United States of America. Information was obtained from the County of San Diego Medical Examiner’s database. External causes were selected and grouped by intent and mechanism. Demographics, location of death and relation between the injury mechanism an...

  1. Approximation of the surface of gypseous soils in San Luis Potosí, Mexico

    OpenAIRE

    Juan F. Martínez-Montoya; Herrero Isern, Juan; Aceves de Alba, Jorge; Palacio-Nunez, Jorge; Ruiz-Vera, Víctor M.; Olmos-Oropeza, Genaro

    2012-01-01

    [EN] The gypseous soils of San Luis Potosí State, México, are not well map-delimited, despite their broad extent and the specificagricultural and environmental management they require. The present article highlights the location and extent of the gypseous lands in the Altiplano and Zona Media of San Luis Potosí State. For this purpose, soil, geology and vegetation maps as well as studies related to gypsum-rich soils, aerial photographs, and satellite maps (termed ‘espaciomapas’ in Spanish, th...

  2. Evaluación de los planes curriculares y sílabos de las asignaturas de la Facultad de Medicina de la UNMSM, sobre la atención integral de salud a personas afectadas por la violencia / Assessment of Faculty of Medicine, Universidad Nacional Mayor de San Marcos curricula and syllabi on subjects related to integral health care of persons affected by violence

    Scientific Electronic Library Online (English)

    Eva, Miranda; Fausto, Garmendia; Alberto, Perales; Pedro, Mendoza; Jorge, Miano; Walter, Calderón.

    2009-12-01

    Full Text Available Propósito: En el año 2005 se realizó un Estudio de Línea de Base en la Facultad de Medicina de la Universidad Nacional Mayor de San Marcos (UNMSM) para conocer la realidad de la formación de los alumnos del pregrado sobre conocimientos y competencias relacionados a la violencia y violación de derech [...] os humanos (DDHH), bajo la hipótesis que este problema nacional de salud no había sido considerado en forma adecuada y suficiente en los planes curriculares de la Facultad de Medicina. Objetivos: Diagnosticar el proceso de enseñanza-aprendizaje de la Facultad de Medicina sobre la atención integral de salud a personas afectadas por efectos de la violencia y violación de los derechos humanos. Diseño: Estudio descriptivo, transversal evaluativo de análisis. Institución: Facultad de Medicina, Universidad Nacional Mayor de San Marcos. Materiales: Planes de estudios de las 5 escuelas académico profesionales (EAP) de la Facultad. Intervenciones: Por juicio de un grupo de expertos, se seleccionó 81 asignaturas que, por sus características, debían contener temas relacionados con la violencia y violación de los derechos humanos (DDHH). Se analizó los sílabos de las asignaturas seleccionadas. Se efectuó coordinaciones con los directores de las 5 Escuelas Académico Profesionales. Se realizó presentaciones de los objetivos de la investigación y del Programa a los coordinadores de los departamentos de Psiquiatría, Medicina, Cirugía, Ginecología y Obstetricia, Pediatría, Medicina Preventiva y Salud Pública, así como entrevistas a docentes interesados en el tema de violencia y violación de los DDHH. A los docentes que acudieron a la entrevista se les indagó sobre su conocimiento, experiencia e interés sobre los temas señalados y se les explicó las características del Programa, con la finalidad de seleccionarlos para una futura capacitación. Principales medidas de resultados: Contenido sobre violencia en los sílabos de las escuelas académico profesionales. Resultados: El estudio demostró que solo 30/81 sílabos (37%) tenía algún contenido sobre violencia, de los cuales correspondía a la EAP de Medicina 9/19 (47,3%), EAP de Obstetricia 9/20 (45%), EAP de Enfermería 5/12 (41,6%), EAP de Tecnología Médica 6/19 (31,5%) y la EAP de Nutrición 1/11 (9,1%). Conclusiones: Estos resultados demostraron la validez de la hipótesis, que efectivamente existía un vacío en la formación de los futuros profesionales de la salud respecto a sus conocimientos y competencias sobre violencia. Abstract in english Aims: In 2005 a baseline study was conducted in order to know the curricular plans and syllabi contents of the Faculty of Medicine, Universidad Nacional Mayor de San Marcos, related to violence health disorders given to undergraduate students of the 5 Academic Professional Schools (APS), under the h [...] ypothesis that this national health problem has not been considered sufficiently and adequately in the curricular plans of the Faculty. Objectives: To determine the Faculty of Medicine’s teaching-learning process on integral health care to persons affected by violence and human rights violation. Design: Descriptive, transversal evaluative analysis. Setting: Faculty of Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru. Materials: Curricular plans of the 5 Faculty’s academic professional schools. Interventions: A total of 81 syllabi courses were considered would have contents on themes related to violence. Coordination work with the directors of the Academic Professional Schools of Medicine, Midwifes, Nursery, Medical Technology and Nutrition was carried out. Formal presentations of the objectives of the Program and this research were done to the Department heads of Medicine, Surgery, Pediatrics, Gynecology-Obstetrics, Psychiatry, Preventive Medicine and Public Health. Interviews to professors to determine their knowledge, experience and interest in the field of violence were conducted as to consider future training. Main outcome measures: Academic professional scho

  3. “TOTALMENTE DIVERSO”: SAN TOMMASO

    Directory of Open Access Journals (Sweden)

    IOSIF TAMA?

    2011-05-01

    Full Text Available In order to synthesize the exploration of above presented ideas, wesuggest the following conclusions: Pope John Paul II cherished Saint Thomas as representing „that eternal novelty of thinking” which brought us close to the ontic space of knowledge, the dynamic principle of which is Being. The climax of this condition would be the moment of embracing the truth, which would trigger that vital necessity for metaphysics. According to the stated objective ofthe necessary and indispensable ratio between reason and faith, we see that Tomas suggested the vision of the objective, transcendent and universal truth. This fact determined Pope John Paul II to appreciate that “passion” for truth. The man of our time must walk again towards the light of this truth. In this sense, Saint Thomas’ philosophy represents the guide above all. Its philosophic importance, meaning that “it is truly the philosophy of Being, and not the philosophy of a simple epiphany”, confirms its aim to provide a constant answerto many of the problems that concerns the human mind: the problems ofknowledge and Being, the problems of speaking and doing, the problems of the world, and the problems related with Man and God.

  4. Beneficial Reuse of San Ardo Produced Water

    Energy Technology Data Exchange (ETDEWEB)

    Robert A. Liske

    2006-07-31

    This DOE funded study was performed to evaluate the potential for treatment and beneficial reuse of produced water from the San Ardo oilfield in Monterey County, CA. The potential benefits of a successful full-scale implementation of this project include improvements in oil production efficiency and additional recoverable oil reserves as well as the addition of a new reclaimed water resource. The overall project was conducted in two Phases. Phase I identified and evaluated potential end uses for the treated produced water, established treated water quality objectives, reviewed regulations related to treatment, transport, storage and use of the treated produced water, and investigated various water treatment technology options. Phase II involved the construction and operation of a small-scale water treatment pilot facility to evaluate the process's performance on produced water from the San Ardo oilfield. Cost estimates for a potential full-scale facility were also developed. Potential end uses identified for the treated water include (1) agricultural use near the oilfield, (2) use by Monterey County Water Resources Agency (MCWRA) for the Salinas Valley Water Project or Castroville Seawater Intrusion Project, (3) industrial or power plant use in King City, and (4) use for wetlands creation in the Salinas Basin. All of these uses were found to have major obstacles that prevent full-scale implementation. An additional option for potential reuse of the treated produced water was subsequently identified. That option involves using the treated produced water to recharge groundwater in the vicinity of the oil field. The recharge option may avoid the limitations that the other reuse options face. The water treatment pilot process utilized: (1) warm precipitation softening to remove hardness and silica, (2) evaporative cooling to meet downstream temperature limitations and facilitate removal of ammonia, and (3) reverse osmosis (RO) for removal of dissolved salts, boron, and organics. Pilot study results indicate that produced water from the San Ardo oilfield can be treated to meet project water quality goals. Approximately 600 mg/l of caustic and 100 mg/l magnesium dosing were required to meet the hardness and silica goals in the warm softening unit. Approximately 30% of the ammonia was removed in the cooling tower; additional ammonia could be removed by ion exchange or other methods if necessary. A brackish water reverse osmosis membrane was effective in removing total dissolved solids and organics at all pH levels evaluated; however, the boron treatment objective was only achieved at a pH of 10.5 and above.

  5. Fantastic Elements in Djebar's La Femme sans sépulture

    OpenAIRE

    Ana M Medeiros

    2007-01-01

    Fantastic Elements in Djebar’s La Femme sans sépulture Todorov famously defined the fantastic genre as comprising texts set in a recognisably ‘real’ world that involve the possibility, but only the possibility, of a supernatural explanation underlying the events of the story related. Where the supernatural and the natural co-exist as hypotheses within the text, the reader enters a state of hesitation concerning the status of the story-events set before her (Todorov, 1975). If this ...

  6. SANS (USH1G) expression in developing and mature mammalian retina.

    Science.gov (United States)

    Overlack, Nora; Maerker, Tina; Latz, Martin; Nagel-Wolfrum, Kerstin; Wolfrum, Uwe

    2008-02-01

    The human Usher syndrome (USH) is the most common form of combined deaf-blindness. Usher type I (USH1), the most severe form, is characterized by profound congenital deafness, constant vestibular dysfunction and prepubertal-onset of retinitis pigmentosa. Five corresponding genes of the six USH1 genes have been cloned so far. The USH1G gene encodes the SANS (scaffold protein containing ankyrin repeats and SAM domain) protein which consists of protein motifs known to mediate protein-protein interactions. Recent studies indicated SANS function as a scaffold protein in the protein interactome related to USH. Here, we generated specific antibodies for SANS protein expression analyses. Our study revealed SANS protein expression in NIH3T3 fibroblasts, murine tissues containing ciliated cells and in mature and developing mammalian retinas. In mature retinas, SANS was localized in inner and outer plexiform retinal layers, and in the photoreceptor cell layer. Subcellular fractionations, tangential cryosections and immunocytochemistry revealed SANS in synaptic terminals, cell-cell adhesions of the outer limiting membrane and ciliary apparati of photoreceptor cells. Analyses of postnatal developmental stages of murine retinas demonstrated SANS localization in differentiating ciliary apparati and in fully developed cilia, synapses, and cell-cell adhesions of photoreceptor cells. Present data provide evidence that SANS functions as a scaffold protein in USH protein networks during ciliogenesis, at the mature ciliary apparatus, the ribbon synapse and the cell-cell adhesion of mammalian photoreceptor cells. Defects of SANS may cause dysfunction of the entire network leading to retinal degeneration, the ocular symptom characteristic for USH patients. PMID:17923142

  7. 33 CFR 165.1185 - Regulated Navigation Area; San Francisco Bay, San Pablo Bay, Carquinez Strait, Suisun Bay...

    Science.gov (United States)

    2010-07-01

    ...Waters 2 2010-07-01 2010-07-01 false Regulated Navigation Area; San Francisco Bay, San Pablo Bay, Carquinez Strait, Suisun Bay, Sacramento River, San Joaquin River, and connecting waters in California. 165.1185...

  8. 78 FR 39588 - Special Local Regulations; Revision of 2013 America's Cup Regulated Area, San Francisco Bay; San...

    Science.gov (United States)

    2013-07-02

    ...2013 America's Cup Regulated Area, San Francisco Bay; San Francisco, CA AGENCY...1) The following area is the Primary Regulated Area for the 2013 America's Cup...All waters of San Francisco Bay bounded by a line...

  9. Characterization of the grafting copolymer EPDM-SAN

    International Nuclear Information System (INIS)

    This work aims the characterization of the grafting copolymer EPDM-SAN. This copolymer presents a fraction of free SAN chains, which was extracted by solubilization in chloroform followed of precipitation of the grafting copolymer EPDM-g-SAN in acetone. The EPDM-SAN and EPDM-g-SAN were characterized by 13C NMR, DSC, TGA and SEM. EPDM-SAN contain 23 wt% of free SAN and 77 wt% of EPDM-g-SAN. Both materials are heterogeneous and the thermal and thermo-oxidative degradation are independent of the composition. (author)

  10. San Diego's High School Dropout Crisis

    Science.gov (United States)

    Wilson, James C.

    2012-01-01

    This article highlights San Diego's dropout problem and how much it's costing the city and the state. Most San Diegans do not realize the enormous impact high school dropouts on their city. The California Dropout Research Project, located at the University of California at Santa Barbara, has estimated the lifetime cost of one class or cohort of…

  11. San Francisco e a nova economia do desejo / San Francisco and the new economy of desire

    Scientific Electronic Library Online (English)

    Richard, Miskolci.

    2014-04-01

    Full Text Available Este artigo apresenta reflexões preliminares de uma pesquisa desenvolvida durante sete meses em San Francisco, Estados Unidos, a qual se associa a outra em andamento na capital paulista desde 2007. Busca sintetizar como o uso de sites e aplicativos em busca de parceiros amorosos e sexuais constitui [...] um fenômeno de transformação tecnológica e comportamental que se relaciona com profundas transformações econômicas no trabalho e na organização do espaço urbano. Assim reconstitui historicamente e analisa em termos sociológicos essas conexões em uma das cidades em que elas são mais visíveis. O objetivo é trazer elementos históricos, etnográficos, teóricos e conceituais para compreender a nova realidade sociotecnológica em que vivemos, que tem transformado o erotismo, a sexualidade e a moral a ela relacionada. Abstract in english This paper presents preliminary reflections about a research conduced during seven months in San Francisco, USA, which is also associated to one developed in São Paulo, Brazil, since 2007. It aims to synthetize how the use of sites and apps in the search for love and sexual partners constitutes a te [...] chnological and comportamental phenomenon associated with deep economic, work and urban transformations. Therefore, it reconstitutes historically these connections and analyses them sociologically in one of the cities where they are more visible. The objective is to bring historical, ethnographic, theoretical and conceptual elements to understand the new socio-technical reality, in which we live, the same that has transformed the sphere of eroticism, of sexuality and of the morality related to them.

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

    Scientific Electronic Library Online (English)

    Hernán Horacio, Schiaffini.

    2011-12-01

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

  13. Comportamiento de los defectos congénitos en San Luis Behavior of congenital defects in San Luis municipality

    Directory of Open Access Journals (Sweden)

    Hernán Pereda Chávez

    2012-08-01

    Full Text Available Introducción: Con el perfeccionamiento de los cuidados obstétricos y neonatales, los defectos congénitos al nacer han condicionado a un aumento relativo en la morbimortalidad infantil a nivel mundial. Objetivo: Evaluar la incidencia de malformaciones congénitas en el municipio San Luis en el periodo 2000-2009, así como clasificarlas según aparatos o sistemas, precisando la efectividad del diagnóstico prenatal, la decisión tomada por la pareja una vez diagnosticada y su repercusión sobre la mortalidad infantil. Material y método: Se realizó un estudio retrospectivo y descriptivo de los defectos congénitos diagnosticados prenatalmente y después del nacimiento pertenecientes al policlínico "Epifanio Rojas Gil" del municipio San Luis en el período 2000-2009, utilizando los libros de registro de diagnóstico prenatal ubicados en el servicio de genética y se enriqueció con los casos evaluados en consulta de genética clínica. Resultados: La incidencia de defectos congénitos disminuyó en el segundo quinquenio, con un mejor control y seguimiento de las mujeres en edad fértil y gestantes. La mayoría de los defectos fueron diagnosticados prenatalmente (60% siendo el ultrasonido y el alfafeto proteína medios diagnósticos muy efectivos principalmente en los últimos cinco años. Las malformaciones cardiovasculares, y los defectos de cierre del tubo neural resultaron las más frecuentes. La tasa de mortalidad infantil debida a defectos congénitos fue baja, siendo el año 2003 el de mayor incidencia con un predominio del sistema cardiovascular, no reportándose en el último quinquenio. Conclusiones: La descentralización de los servicios permitió una mejor prevención, diagnóstico precoz y supervivencia de los recién nacidos con defecto congénito en el municipio.Introduction: With the advances of obstetric and neonatal care, congenital defects at birth have led to a relative increase in child morbidity and mortality all over the world. Objectives: to assess the incidence of congenital malformations in San Luis municipality during 2000-2009 and to classify them regarding the systems or apparatus affected, to precise the effectiveness of prenatal diagnosis, the decision making of the couple after the diagnosis and repercussion on infant mortality. Material and method: a retrospective and descriptive study about the congenital defects diagnosed during prenatal periods and after birth at “Epifanio Rojas Gil” polyclinic in San Luis municipality; that was carried out throughout 2000-2009 using the records of prenatal diagnosis in the genetic services, which enriched the analysis of the cases assessed in the clinical genetic office. Results: the incidence of congenital defects diminished during the second five-year period, showing a much better control and follow-up of women in fertile ages and pregnant women. The majority of the defects were prenatally diagnosed (60% where ultrasound along with alpha fetoprotein [AFP] analysis were the most effective diagnosis means, mainly during the last five years. Cardiovascular malformations and neural tube defect closure were the most frequent. The rate of infant mortality related to congenital defects was low, however 2003 showed the greatest incidence, prevailing the defects in cardiovascular system, no cases were reported during the last five-year period. Conclusions: decentralization of genetic services allowed improvements in prevention, early diagnosis and survival of newborn carrying congenital defects in San Luis municipality.

  14. Comportamiento de los defectos congénitos en San Luis / Behavior of congenital defects in San Luis municipality

    Scientific Electronic Library Online (English)

    Hernán, Pereda Chávez; Francisco, Delgado Aguiar; María del Carmen, Morejón; Yesenia, Pérez Expósito; Ledys Mabel, Hernández Fernández.

    2012-08-01

    Full Text Available Introducción: Con el perfeccionamiento de los cuidados obstétricos y neonatales, los defectos congénitos al nacer han condicionado a un aumento relativo en la morbimortalidad infantil a nivel mundial. Objetivo: Evaluar la incidencia de malformaciones congénitas en el municipio San Luis en el periodo [...] 2000-2009, así como clasificarlas según aparatos o sistemas, precisando la efectividad del diagnóstico prenatal, la decisión tomada por la pareja una vez diagnosticada y su repercusión sobre la mortalidad infantil. Material y método: Se realizó un estudio retrospectivo y descriptivo de los defectos congénitos diagnosticados prenatalmente y después del nacimiento pertenecientes al policlínico "Epifanio Rojas Gil" del municipio San Luis en el período 2000-2009, utilizando los libros de registro de diagnóstico prenatal ubicados en el servicio de genética y se enriqueció con los casos evaluados en consulta de genética clínica. Resultados: La incidencia de defectos congénitos disminuyó en el segundo quinquenio, con un mejor control y seguimiento de las mujeres en edad fértil y gestantes. La mayoría de los defectos fueron diagnosticados prenatalmente (60%) siendo el ultrasonido y el alfafeto proteína medios diagnósticos muy efectivos principalmente en los últimos cinco años. Las malformaciones cardiovasculares, y los defectos de cierre del tubo neural resultaron las más frecuentes. La tasa de mortalidad infantil debida a defectos congénitos fue baja, siendo el año 2003 el de mayor incidencia con un predominio del sistema cardiovascular, no reportándose en el último quinquenio. Conclusiones: La descentralización de los servicios permitió una mejor prevención, diagnóstico precoz y supervivencia de los recién nacidos con defecto congénito en el municipio. Abstract in english Introduction: With the advances of obstetric and neonatal care, congenital defects at birth have led to a relative increase in child morbidity and mortality all over the world. Objectives: to assess the incidence of congenital malformations in San Luis municipality during 2000-2009 and to classify t [...] hem regarding the systems or apparatus affected, to precise the effectiveness of prenatal diagnosis, the decision making of the couple after the diagnosis and repercussion on infant mortality. Material and method: a retrospective and descriptive study about the congenital defects diagnosed during prenatal periods and after birth at “Epifanio Rojas Gil” polyclinic in San Luis municipality; that was carried out throughout 2000-2009 using the records of prenatal diagnosis in the genetic services, which enriched the analysis of the cases assessed in the clinical genetic office. Results: the incidence of congenital defects diminished during the second five-year period, showing a much better control and follow-up of women in fertile ages and pregnant women. The majority of the defects were prenatally diagnosed (60%) where ultrasound along with alpha fetoprotein [AFP] analysis were the most effective diagnosis means, mainly during the last five years. Cardiovascular malformations and neural tube defect closure were the most frequent. The rate of infant mortality related to congenital defects was low, however 2003 showed the greatest incidence, prevailing the defects in cardiovascular system, no cases were reported during the last five-year period. Conclusions: decentralization of genetic services allowed improvements in prevention, early diagnosis and survival of newborn carrying congenital defects in San Luis municipality.

  15. RheoSANS: simultaneous SANS and rheology measurements on the Quokka SANS instrument

    International Nuclear Information System (INIS)

    The highly penetrative and non-ionising nature of neutrons make the SANS measurement particularly suited to examine toe response of soft materials to an external stimulus. In this case we consider the response of a complex fluid. an aqueous solution of a block co-polymer. to shear flow in a couette cell consisting of two concentric quartz cylinders with a variable gap between The couette shear cell is connected to a commercial Paar Physica MCR 500 rheometer. Depending on the ability to maintain laminar flow, rheometric tests may be performed at shear rates from 0.1 to 2000s-1 and at temperatures from -5 to 80cC. The jacket responsible for thermal control of the sample allows access of neutron beam in directions radial and tangential to the now direction. In the tangential direction the need to use a highly collimated beam to illuminate the gap provides a serious limitation to neutron flux at the sample. A trap may be used to prevent the evaporation of solvents. SANS data from the detector may be acquired in either of two modes. Acquisitions may be triggered by voltage output from rheometer (e.g shear rate), or using the detector in list mode where detector counts are post-binned to provide the optimal signal to noise for example in kinetic studies. A further possibility of the latter mode rs the study of shear induced structural changes in a steady perturbed slate such as an oscillatory smear.

  16. SANS2-high-resolution small-angle diffractometer-reference instrument WBS 1.7.9

    International Nuclear Information System (INIS)

    SANS2 is a general-purpose small-angle neutron scattering spectrometer providing relatively high resolution and relatively low minimum Q values. Figure 1 provides a schematic representation of SANS2, and Table 1 gives the parameters for this instrument. Because of the broad Q range sampled in a single measurement, this instrument will be particularly useful in the study of time-dependent phenomena, such as deformation/orientation and phase transformations in complex fluids and polymers

  17. Vabariigi aastapäev San Franciscos / Heino Valvur ; foto: Heino Valvur

    Index Scriptorium Estoniae

    Valvur, Heino

    2006-01-01

    veebruarikuu möödus San Franciscos Eesti Vabariigi 88. aastapäeva pühitsedes: traditsiooniliselt tähistas aastapäeva San Francisco Seenioride Klubi koosviibimisega, E.E.L.K. San Francisco koguduses peeti jumalateenistus ja koosviibimine, kus noored esitasid rahvalaule, San Francisco Eesti Selts tähistas aastapäeva 25. veebruaril aktuse ja koosviibimisega

  18. Moving Towards SAN Storage: An Enterprise Perspective

    Directory of Open Access Journals (Sweden)

    rabi prasad padhy

    2012-08-01

    Full Text Available Abstract – One of the major components of any enterprise IT infrastructure is data storage. There has been continuous effort to explore new storage technologies to improve performance with respect to input/output operations, data availability, consolidation of storage assets and data protection and archiving. Storage has moved from the traditional Direct Attached Storage (DAS to Network Attached Storage (NAS and now to Storage Area Networks (SAN. Traditional storage subsystems like Server Attached Storage (SAS and Network Attached Storage (NAS use disks directly attached to servers over a Small Computer Systems Interface (SCSI bus. However, these have limited capabilities keeping in view the rapidly expanding storage needs. The SAN technology holds great promises to be used for enterprises where issues like data availability, serviceability, consolidation of storage and reliability are major concerns. It can provide high speed data transfer with many other storage services, backboned with a high speed Fibre Channel (FC. Storage-area networks are also more popular and efficient way of building large storage systems both in an enterprise environment and for multi-domain storage service providers. SAN design and implementation requires careful analysis before SAN can be used as an enterprise storage solution. In this paper we provide an overview of SAN technology from the view point of building large storage systems in an enterprise environment. We also discuss on return on investment (ROI which can justify the adoption of SAN in an enterprise. Further, it compares two specific technologies, namely, FC SAN and IP SAN. In the sequel different design considerations are made to recommend suitable SAN implementations in order to meet the requirements of any enterprise.

  19. SANS study of asphaltene aggregation

    International Nuclear Information System (INIS)

    The colloidal properties of asphaltenes affects their solubility, reactivity and transport properties. We have been investigating the molecular basis for the aggregation of asphaltenes in toluene through the use of Small Angle Neutron Scattering (SANS), in which the hydrogen nucleus provides the strongest scatterer, and the contrast may be varied by deuterium replacement. The measured intensity curves can be fitted with a elongated particle. Both radius of gyration and molecular weight are significantly decreased upon increasing temperature, indicating a disaggregation rather than a conformational change mechanism. Thus, the ''true'' molecular weight of asphaltenes is much less than that measured at room temperature, and appears to be ?6000. The internal structure is probably complex enough so that a simple description in terms of colloidal or micellar structures is not granted

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

    International Nuclear Information System (INIS)

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

  1. SANS studies of micellar and magnetic fluids

    International Nuclear Information System (INIS)

    Small-angle neutron scattering (SANS) has proved to be an excellent technique for the study of complex fluids. This article introduces SANS from the viewpoint of such studies. The use of SANS to determine the structures of concentrated micellar fluids is then discussed within the framework of current one-component macrofluid (OCM) models, and experimental examples are taken from several contemporary studies. Finally, the discussion is extended to magnetic fluids (ferrofluids) in which the neutron magnetic interaction plays an important experimental role. 25 refs., 11 figs., 1 tab

  2. Amélioration des expérimentations sur réseaux sans fil

    OpenAIRE

    Dujovne, Diego Roberto

    2009-01-01

    Depuis la création de la norme 802.11, en 1999, les réseaux locaux sans fil, qui était exceptionnelle à l'époque, sont devenus un phénomène incontournable après la l'évolution des appareils mobiles. Au même rythme, la recherche sur les réseaux sans-fil a rapidement évolué suivant des modèles adaptés du paradigme des réseaux filaires, qui a conduit un écart significatif entre la simulation et les résultats expérimentaux. En conséquence, afin de valider les protocoles sans fil ou des algorithme...

  3. 33 CFR 165.1187 - Security Zones; Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay...

    Science.gov (United States)

    2010-07-01

    ...Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay, California. 165.1187 Section 165.1187 ...Golden Gate Bridge and the San Francisco-Oakland Bay Bridge, San Francisco Bay, California. (a)...

  4. Geothermal resource assessment of western San Luis Valley, Colorado

    Energy Technology Data Exchange (ETDEWEB)

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

    1983-01-01

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

  5. Sediment conditions in the San Antonio River Basin downstream from San Antonio, Texas, 2000-13

    Science.gov (United States)

    Ockerman, Darwin J.; Banta, J. Ryan; Crow, Cassi L.; Opsahl, Stephen P.

    2015-01-01

    Sediment plays an important role in the ecological health of rivers and estuaries and consequently is an important issue for water-resource managers. To better understand sediment characteristics in the San Antonio River Basin, the U.S. Geological Survey, in cooperation with the San Antonio River Authority, completed a two-part study in the San Antonio River Basin downstream from San Antonio, Texas, to (1) collect and analyze sediment data to characterize sediment conditions and (2) develop and calibrate a watershed model to simulate hydrologic conditions and suspended-sediment loads during 2000–12.

  6. Calidad de Vida Relacionada con Salud Oral en Mayores de 14 Años en la Comunidad San Juan Bautista, Isla Robinson Crusoe, Chile / Quality of Life Related to Oral Health in Subjects 14 Years or Older, San Juan Bautista Community, Robinson Crusoe Island, Chile

    Scientific Electronic Library Online (English)

    Josefina, Aubert; Sergio, Sanchéz; René, Castro; María José, Monsalves; Paulina, Castillo; Patricia, Moya.

    2014-04-01

    Full Text Available El aislamiento geográfico y condiciones medioambientales hacen a la población de Juan Fernández altamente vulnerable, siendo relevante conocer la calidad de vida relacionada con salud oral. Se realizó un estudio transversal en 137 habitantes mayores de 14 años. Se aplicó OHIP-14 para medir calidad d [...] e vida relacionada con salud oral previo consentimiento informado. El análisis estadístico fue realizado STATA 12.0. Un 51,8% es población femenina, con una edad media de 42,26 (DE 16,5). Un 91,97%, percibe que la salud oral afecta su calidad de vida, siendo levemente mayor en mujeres. Las molestias psicológicas son una manifestación en 80,29% de los encuestados. Un 75,91% percibe incomodidad por dolor en su boca, 62,77% manifiesta problemas de incapacidad psicológica. Existe mayor impacto en la calidad de vida relacionada con salud oral a medida que aumenta la edad. Por cada año de vida, el valor del OHIP-14 aumenta 0,07 (IC:95% 0,04­0,1). Los resultados obtenidos sugieren la necesidad de generar políticas públicas que consideren la salud oral desde una perspectiva integral, con énfasis en poblaciones altamente vulnerables considerando la mejora en la calidad de vida como un resultado a esperar. Abstract in english Geographic isolation and environmental conditions make the population of Robinson Crusoe Island, in the Juan Fernández archipielago highly vulnerable. It is therefore relevant to know the quality of life related to oral health (QOLRTO). In this report a cross sectional study in 137 inhabitants over [...] 14 years of age was carried out. OHIP-14 was applied to measure QOLRTO, after informed consent was obtained. Statistical analysis was made in STATA 12.0. The population is 51.8% female, mean age 42.26 (SD 16.5) being similar in both sexes. Of the subjects studied, 91.97% perceived that oral health affects their quality of life, being slightly higher in women. Psychological distress was a manifestation in 80.29% of subjects, while 75.91% perceived discomfort and mouth pain, and 62.77% reported psychological disability issues. There is a greater impact of oral health issues with increasing age. For each year of life, the value of the OHIP-14 increased 0.07 (CI 95%, 0.04 to 0.1). The results suggest that public health policies that include a comprehensive oral health perspective, with emphasis on highly vulnerable populations should be considered.

  7. San Bernardino National Wildlife Refuge contaminant study

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The San Bernardino National Wildlife Refuge was established in 1982 for the protection and management of endangered desert fishes which are indigenous to the Rio...

  8. Backscatter B [7125]--Offshore San Gregorio, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of SIM 3306 presents data for the acoustic-backscatter map (see sheet 3, SIM 3306) of the Offshore of San Gregorio map area, California. Backscatter data...

  9. Bathymetry--Offshore of San Francisco, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of DS 781 presents data for the bathymetry and shaded-relief maps of Offshore of San Francisco, California (raster data file is included in...

  10. Habitat--Offshore of San Francisco, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of DS 781 presents data for the habitat map of the seafloor of the Offshore of San Francisco map area, California. The vector data file is included in...

  11. Habitat--Offshore of San Gregorio, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of SIM 3306 presents data for the habitat map of the seafloor (see sheet 7, SIM 3306) of the Offshore of San Gregorio map area, California. The vector...

  12. Contours--Offshore of San Francisco, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of DS 781 presents data for the bathymetric contours for several seafloor maps of the Offshore of San Francisco map area, California. The vector data file...

  13. Arquitectura formativa en San Pedro de Atacama

    Scientific Electronic Library Online (English)

    Leonor, Adán A; Simón, Urbina A.

    Full Text Available En este artículo se caracterizan arquitectónicamente los sitios Tulor-1, Calar y Ghatchi-2C aplicando una metodología sistemática ya probada en otros asentamientos habitacionales del área. En forma complementaria se presentan los antecedentes disponibles sobre arquitectura del Período Formativo en l [...] a región de San Pedro de Atacama como en espacios contiguos, para discutir la evolución del patrón aldeano y sus implicancias en el sistema de asentamiento. Se sugiere que factores rituales fueron importantes en los inicios del desarrollo arquitectónico en un contexto de sociedades eminentemente pastoriles, para luego evaluar el rol que estos asentamientos cumplieron una vez consolidados en este nuevo paisaje cultural. Abstract in english This paper characterizes the architecture of three sites (Tulor-1, Calar and Ghatchi-2C) by contrasting our results with the records already available about the Formative Period's architecture in the region and nearby places. This enable us to discuss the evolution of villager settlement patterns an [...] d its impact in the overall settlement system. The importance ritual factors seemed to have in the development of architecture is linked to a social context eminently composed by shepherd societies and the relatively important role played by their settlements as they consolidated into enclaves of a new cultural landscape.

  14. Inteligencia emocional y vínculo laboral en trabajadores del Centro San Camilo / Emotional intelligence and engagement in San Camilo Centre workers

    Scientific Electronic Library Online (English)

    Cristina, Liébana Presa; M.ª Elena, Fernández Martínez; José Carlos, Bermejo Higuera; M.ª Rosa, Carabias Maza; M.ª Aurora, Rodríguez Borrego; Marta, Villacieros Durbán.

    2012-06-01

    Full Text Available Las organizaciones están comprometidas desde hace tiempo con la promoción de la salud y del bienestar de los trabajadores. Con este referente se realizó el presente estudio; el objetivo fue describir y analizar las asociaciones que existen entre las variables inteligencia emocional y engagement. La [...] población fueron 150 trabajadores del Centro San Camilo. Los instrumentos de evaluación utilizados son la escala de Inteligencia Emocional (EIE-33), la escala de Inteligencia Emocional (EIE-25), el Trait Meta-Mood Scale (TMMS-24) y cuestionario de Utrecht Work Engagement Scale (UWES). Es un estudio descriptivo correlacional. En los trabajadores del Centro San Camilo existe asociación entre la inteligencia emocional y el engagement. Así la inteligencia emocional, entendida como la capacidad para adquirir habilidades o competencias para la adaptación de las demandas profesionales, potencia un estado mental positivo relacionado con el trabajo y ello repercute en la calidad asistencial y en la salud de la población atendida. Abstract in english For some time organizations are committed with health promotion and workers welfare. Under this concern this study has been conducted; the aim was to describe and analyse the existing associations between emotional intelligence and engagement variables. The population were 150 workers from San Camil [...] o Centre. The assessment instruments used were the scale of Emotional Intelligence (EIE-33), the scale of Emotional Intelligence (EIE-25), the Trait Meta-Mood Scale (TMMS-25) and the questionnaire of Utrecht Work Engagement Scale (UWES). It is a descriptive correlational study. In San Camilo Centre workers there is association between emotional intelligence and engagement. Emotional intelligence, understood as the capacity to acquire skills or competencies for the adaptation to professional demands thus enhances a positive mental state work-related and this affects the quality of care and the assisted population health.

  15. Inteligencia emocional y vínculo laboral en trabajadores del Centro San Camilo Emotional intelligence and engagement in San Camilo Centre workers

    Directory of Open Access Journals (Sweden)

    Cristina Liébana Presa

    2012-06-01

    Full Text Available Las organizaciones están comprometidas desde hace tiempo con la promoción de la salud y del bienestar de los trabajadores. Con este referente se realizó el presente estudio; el objetivo fue describir y analizar las asociaciones que existen entre las variables inteligencia emocional y engagement. La población fueron 150 trabajadores del Centro San Camilo. Los instrumentos de evaluación utilizados son la escala de Inteligencia Emocional (EIE-33, la escala de Inteligencia Emocional (EIE-25, el Trait Meta-Mood Scale (TMMS-24 y cuestionario de Utrecht Work Engagement Scale (UWES. Es un estudio descriptivo correlacional. En los trabajadores del Centro San Camilo existe asociación entre la inteligencia emocional y el engagement. Así la inteligencia emocional, entendida como la capacidad para adquirir habilidades o competencias para la adaptación de las demandas profesionales, potencia un estado mental positivo relacionado con el trabajo y ello repercute en la calidad asistencial y en la salud de la población atendida.For some time organizations are committed with health promotion and workers welfare. Under this concern this study has been conducted; the aim was to describe and analyse the existing associations between emotional intelligence and engagement variables. The population were 150 workers from San Camilo Centre. The assessment instruments used were the scale of Emotional Intelligence (EIE-33, the scale of Emotional Intelligence (EIE-25, the Trait Meta-Mood Scale (TMMS-25 and the questionnaire of Utrecht Work Engagement Scale (UWES. It is a descriptive correlational study. In San Camilo Centre workers there is association between emotional intelligence and engagement. Emotional intelligence, understood as the capacity to acquire skills or competencies for the adaptation to professional demands thus enhances a positive mental state work-related and this affects the quality of care and the assisted population health.

  16. municipios Maracaibo y San Francisco

    Directory of Open Access Journals (Sweden)

    Rosa E. Ortiz

    2005-01-01

    Full Text Available El estudio de las Organizaciones No Gubernamentales estuvo dirigido a caracterizar la diversidad de grupos y asociaciones que bajo el termino genérico de ONG?s existen en los municipios Maracaibo y San Francisco, los más poblados y relevantes en la vida política, económica, social y cultural del estado Zulia-Venezuela. Se planteó una investigación exploratoria y descriptiva. El resultado permitió reconocer a Existe un crecimiento sostenido de las ONG en estos municipios: b los sectores con mayor concentración son el de salud; educación; deporte y recreación; arte y cultura. c Las instituciones que promueven más organizaciones son la iglesia y el Estado, lo que supone es este último caso una reducción de las funciones que le corresponden, además de la minimización de costos y conflictos laborales. d Ambivalencia en la orientación de su funcionamiento: Algunas ONG?s implementan prácticas próximas a la mercantilización de los servicios con lo cual legitiman estrategias del modelo económico neoliberal mientras otras contribuyen a fortalecer la democratización de los servicios públicos. Se concluye que el crecimiento y características de las ONGs en estos municipios estuvo vinculado en los noventa y comienzos de la década de 2000 por la aplicación de las políticas públicas neoliberales.

  17. 78 FR 19103 - Safety Zone; Spanish Navy School Ship San Sebastian El Cano Escort; Bahia de San Juan; San Juan, PR

    Science.gov (United States)

    2013-03-29

    ...DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR...Zone; Spanish Navy School Ship San Sebastian...the Spanish Navy School Ship San Sebastian...Department of Homeland Security Delegation No...Department of Homeland Security Delegation No...Zone, Spanish Navy School Ship San...

  18. 75 FR 15611 - Safety Zone; United Portuguese SES Centennial Festa, San Diego Bay, San Diego, CA

    Science.gov (United States)

    2010-03-30

    ...RIN 1625-AA00 Safety Zone; United Portuguese SES Centennial Festa, San Diego Bay...San Diego Bay in support of the United Portuguese SES Centennial Festa. This temporary...Spectaculars is sponsoring the United Portuguese SES Centennial Festa, which will...

  19. Particularidades del escurrimiento de la cuenca cubana San Juan / Runoff particularities of Cuban basin San Juan

    Scientific Electronic Library Online (English)

    Katia Luisa, Rosario Rodríguez; Viera, Petrova Nicolaevna; Alberto, Cuéllar Valenzuela; Dailene, Acosta Freyre; Armando, Hernández Valdés; Haydée, Llanusa Ruiz.

    2013-12-01

    Full Text Available La cuenca San Juan, dividida en las subcuencas San Juan, San Agustín y Cañas, difiere totalmente de otras cuencas de la provincia. Los altos valores de los módulos del escurrimiento medio de los ríos y sus distribuciones dentro del año e hiperanual confirman esta particularidad, la cual fue comproba [...] da con las investigaciones complementarias realizadas durante el periodo seco del 2011. El análisis del comportamiento del escurrimiento de la subcuenca San Agustín-Cañas, incluyendo el funcionamiento del trasvase MatanzasMayabeque, conllevó a los decisores a desarrollar un programa de gestión integrada de los recursos hídricos de esta cuenca. Abstract in english The San Juan basin, divided into sub-basins San Juan, San Agustín and Cañas, is completely different from other basins in the province. The high modular values of average river runoff, its within-year distribution and its overyear distribution confirm this peculiarity, which was checked with additio [...] nal research conducted during the dry period of 2011. The behavior of the subbasin runoff of San Agustín-Cañas, including the operation of the water diversion canal MatanzasMayabeque, led the decision makers to develop an integrated water resources management program for this basin.

  20. Chlorinated hydrocarbon pesticides and polychlorinated biphenyls in sediment cores from San Francisco Bay

    Science.gov (United States)

    Venkatesan, M.I.; De Leon, R. P.; VanGeen, A.; Luoma, S.N.

    1999-01-01

    Sediment cores of known chronology from Richardson and San Pablo Bays in San Francisco Bay, CA, were analyzed for a suite of chlorinated hydrocarbon pesticides and polychlorinated biphenyls to reconstruct a historic record of inputs. Total DDTs (DDT = 2,4'- and 4,4'-dichlorodiphenyltrichloroethane and the metabolites, 2,4'- and 4,4'-DDE, -DDD) range in concentration from 4-21 ng/g and constitute a major fraction (> 84%) of the total pesticides in the top 70 cm of Richardson Bay sediment. A subsurface maximum corresponds to a peak deposition date of 1969-1974. The first measurable DDT levels are found in sediment deposited in the late 1930's. The higher DDT inventory in the San Pablo relative to the Richardson Bay core probably reflects the greater proximity of San Pablo Bay to agricultural activities in the watershed of the Sacramento and San Joaquin rivers. Total polychlorinated biphenyls (PCBs) occur at comparable levels in the two Bays (San Pablo Bay are about a factor of four higher in the last four decades than in Richardson Bay, suggesting a distribution of inputs not as strongly weighed towards the upper reaches of the estuary as DDTs. The shallower subsurface maximum in PCBs compared to DDT in the San Pablo Bay core is consistent with the imposition of drastic source control measures four these constituents in 1970 and 1977 respectively. The observed decline in DDT and PCB levels towards the surface of both cores is consistent with a dramatic drop in the input of these pollutants once the effect of sediment resuspension and mixing is taken into account.

  1. Une République islamique sans mosquée

    Directory of Open Access Journals (Sweden)

    Fariba Adelkhah

    2012-01-01

    Full Text Available Qui dit mosquée en Iran dit d’abord un ensemble de moyens ou de facilités laissés au quotidien à la disposition des passants ou des usagers. Ensuite des rituels religieux accomplis, de façon régulière, en présence des autorités ayant le privilège ou le monopole de délivrer un certain savoir islamique. Dans le premier sens la mosquée est un point d’eau, un toit, un accueil où nul(le ne se sentirait exclu(e ou ne se verrait refoulé(e. Dans le second sens elle relève des choix du croyant qui peut préférer un lieu par rapport à un autre, en fonction de critères aussi bien intellectuels que religieux ou encore de type communautaire, professionnel, voire générationnel. C’est sans doute la concomitance même de ces deux formes d’utilité, matérielle et spirituelle, qui font que les mosquées ont résisté, d’une part, au monopole, de l’autre, à l’isolement. Autrement dit, si les mosquées ont servi de cadre à la centralisation de l’Etat, elles ont également été des instances de résistance à la prétention monopolistique de ce dernier. Le présent travail tente une analyse des dynamiques concomitantes, spirituelles et matérielles, qui se renforcent et se complètent, à partir de la nouvelle organisation des mosquées et des nouvelles pratiques qui se déroulent en leur sein ou dans leur proximité. De fait il convient mieux, depuis une vingtaine d’années, de parler de complexes religieux plutôt que de simples lieux de prière.

  2. Non-linear vibrations of cracked structures: application to turbine rotors; Vibrations non-lineaires des structures fissurees: application aux rotors de turbines

    Energy Technology Data Exchange (ETDEWEB)

    El Arem, S.

    2006-01-15

    The aim of this work is to study the dynamic response of a cracked rotor to establish some possibilities for early on line crack detection. First, a review on experimental, numerical and analytical works on the dynamics of cracked rotors is given. Then, an original method of calculating the behavior of a cracked beam section in bending with shearing effects is presented. The nonlinear behavior relations are derived from a three-dimensional model taking into account the unilateral contact conditions on the crack's lips. Based on an energy formulation, this method could be applied to any geometry of crack. The exploration by different numerical integration methods of the vibratory response of some models of cracked rotors is presented in the third chapter of this thesis. The un-cracked parts of a rotor are represented by elements of bar or beam type, and the cracked section by a nonlinear spring taking into account the breathing mechanism of the cracks. At the end of this part, an original method of construction of a finite element of a cracked beam is presented. The final chapter is devoted to the analytical study of the system with 2 degrees of freedom. The breathing mechanism of the crack is taken into account by considering specific periodic variation of the global stiffness of the system. The differential equations system is solved using the harmonic balance method. The linear stability of the periodic solutions is studied by the Floquet theory. Some vibratory parameters are proposed as crack indicators. (author)

  3. The Church of San Miniato al Monte, Florence: Astronomical and Astrological Connections

    Science.gov (United States)

    Shrimplin, V.

    2011-06-01

    The church of San Miniato al Monte is examined in the context of interest in astrology and astronomy in early Renaissance Florence. Vitruvius emphasised the need for architects to "be acquainted with astronomy and the theory of the heavens" in his famous Ten Books of Architecture and, at San Miniato, astronomical and astrological features are combined in order to link humanity with the celestial or spiritual realm. The particular significance of Pisces and Taurus is explored in relation to Christian symbolism, raising questions about the role of astronomy and astrology in art and architecture.

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

    International Nuclear Information System (INIS)

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

  5. Psychiatric Disorders and Substance Use in Homeless Youth: A Preliminary Comparison of San Francisco and Chicago

    Directory of Open Access Journals (Sweden)

    Ernika G. Quimby

    2012-08-01

    Full Text Available Youth homelessness is a growing problem in the United States. The experience of homelessness appears to have numerous adverse consequences, including psychiatric and substance use disorders. This study compared the frequencies of psychiatric disorders, including substance use, between homeless youth (18–24 years-old in San Francisco (N = 31 and Chicago (N = 56. Subjects were administered the Mini International Neuropsychiatric Interview (M.I.N.I. to assess DSM-IV-TR diagnoses and substance use disorders. Eighty-seven percent of the San Francisco youth, and 81% of the Chicago youth met criteria for at least one M.I.N.I. psychiatric diagnosis. Nearly two-thirds of the youth in both samples met criteria for a mood disorder. Approximately one-third met criteria for an anxiety disorder. Thirty-two percent of the San Francisco sample and 18% of the Chicago met criteria for Antisocial Personality Disorder. Approximately 84% of the San Francisco youth and 48% of the Chicago youth met criteria for a substance-related disorder, and more substances were used by San Francisco youth. In conclusion, the high rate of psychiatric disorders in homeless youth provides clear evidence that the mental health needs of this population are significant. Implications are discussed.

  6. CAREER TRAINING IN HOTEL AND RESTAURANT OPERATION...AT CITY COLLEGE OF SAN FRANCISCO.

    Science.gov (United States)

    BATMALE, LOUIS F.; MULLANY, GEORGE G.

    THE HOTEL AND RESTAURANT PROGRAM, ONE OF 35 SEMIPROFESSIONAL TRAINING PROGRAMS AT CITY COLLEGE OF SAN FRANCISCO, COMBINES GENERAL EDUCATION, RELATED BUSINESS INSTRUCTION, HOTEL AND RESTAURANT CLASSES, FOOD PREPARATION AND SERVICE TRAINING, AND WORK EXPERIENCE. THIS DESCRIPTION OF THE PROGRAM INCLUDES (1) PURPOSES AND OBJECTIVES, (2) CURRICULUM,…

  7. Fundamento y aproximación Metodológica del Estudio de peces del Río San Pedro / Basis and Methodological Approach for the Study of the San Pedro River Fish Fauna

    Scientific Electronic Library Online (English)

    Evelyn, Habit; Oscar, Parra.

    Full Text Available El río San Pedro corresponde al sistema fluvial que desagua la cadena de ocho lagos andinos de la cuenca del río Valdivia (Región de los Ríos). Este sistema recorre 40 km entre el desagüe del lago Riñihue y su confluencia con el río Collileufu, donde cambia de nombre a río Calle Calle. En él se proy [...] ectó construir la "Central Hidroeléctrica San Pedro", cuyo muro se ubica 14 km aguas abajo del desagüe del lago Riñihue y la cual transforma 12,5 km de río en embalse. Ello generó la necesidad de elaborar un Estudio de Impacto Ambiental, el cual fue desarrollado por el Centro de Ciencias Ambientales Eula Chile (Universidad de Concepción). En relación a la ecología del río, dicho estudio puso especial énfasis en generar el conocimiento de detalle sobre su ictiofauna, con el fin de efectuar una evaluación de impactos especie específica. En este artículo presentamos los fundamentos y aproximaciones metodológicas para llevar a cabo el estudio intensivo, cuyos resultados dan origen a esta publicación monográfica y a la descripción de la distribución, abundancia, uso de hábitat, patrones de desplazamiento, relaciones de longitud-peso, primeros estadíos de vida y estructura genética de la ictiofauna del río San Pedro. Abstract in english The San Pedro River is the fluvial system being drained by the chain of eight Andean lakes in the Valdivia River Basin (de los Ríos Region). This system covers 40 km from the outlet of Riñihue Lake to its confluence with the Collileufu River, where it is renamed as Calle Calle River. In the San Pedr [...] o River, the "Central Hidroeléctrica San Pedro" (San Pedro Hydroelectric Plant) is planned, whose dam is located 14 km downstream from the outlet of the Riñihue Lake, which will transform 12.5 km of river in a reservoir. This generated the need for an Environmental Impact Assessment, which was developed by the Center for Environmental Sciences EULA-Chile (Universidad de Concepción). In relation to the river ecology, the study placed special emphasis on generating detailed knowledge about their ichthyofauna, in order to make a species-specific impact assessment. In this issue, we present the foundations and methodological approaches to undertake the intensive study, whose results give rise to this monograph and to the description of the distribution, abundance, habitat use, movement patterns, length-weight relationships, early life stages and genetic structure of the fish fauna of San Pedro River.

  8. New IP SAN Era in Cluster Mirroring

    Directory of Open Access Journals (Sweden)

    Mr. Rajendra Purohit

    2012-12-01

    Full Text Available Storage replication is one of the back bones for network environments. While many forms of Network Attached Storage (NAS, Storage Area Networks (SAN and other forms of network storage exist, there is a need for a reliable storage replication technique between distant sites (> 1 Km. Such technology allows setting new standards and removes demerits of network failover and failback systems for virtual servers; specifically, the growing storage need for effective disaster recovery (DR planning. The purpose of this manuscript is to identify growing technologies such as IP-SAN that allow with remote storage cluster replication for virtual servers. This study (Cluster Replication provides an analysis of improving the uptime and availability of SAN. For higher levels of availability, mirrored images maintained in Active/Active Cluster mirroring can provide a system with No Single Points of Failure, which is designed to improve the overall uptime of the storage system for organizations with 7x24x365 requirements.

  9. Species Observations (poly) - San Diego County [ds648

    Data.gov (United States)

    California Department of Resources — Created in 2009, the SanBIOS database serves as a single repository of species observations collected by various departments within the County of San Diego's Land...

  10. Coastal Cactus Wren, San Diego Co. - 2009 [ds702

    Data.gov (United States)

    California Department of Resources — The San Diego Multiple Species Conservation program (MSCP) was developed for the conservation of plants and animals in the southeast portion of San Diego County....

  11. Coastal Cactus Wren, San Diego Co. - 2011 [ds708

    Data.gov (United States)

    California Department of Resources — The San Diego Multiple Species Conservation program (MSCP) was developed for the conservation of plants and animals in the southeast portion of San Diego County....

  12. DARI KYUUSHUU KE RAN’IN: KARAYUKI-SAN DAN PROSTITUSI JEPANG DI INDONESIA (1885-1920

    Directory of Open Access Journals (Sweden)

    Sri Pangastoeti

    2009-06-01

    Full Text Available Karayuki-san is a term referring to Japanese women who worked as prostitutes abroad from the Meiji Period (1868-1912 to the World War II. This study investigates the various conditions that encourage Japanese women to be karayuki-san, to understand the kinds of exploitations that the karayuki-san experienced during their journey to Indonesia and worked as prostitutes in some cities in Indonesia. The main data sources for this research are some diplomatic records (confidential and disclosed obtained from the Japanese Consulate in Singapore and Batavia from Meiji 28 (1895 to Taisho 4 (1915, Dutch Colonial Governments Regulations related to Japanese migrants, particularly those collected in the Missive Gouvernements Secretaris (Mgs, and dialog records between Yamazaki Tomoko and the ex-karayuki-san that were recorded in Sandakan Hachiban Shookan (Sandakan No.8 Brothel.

  13. Radium 228 distribution and mixing in San Nicolas and San Pedro Basins, southern California borderland

    International Nuclear Information System (INIS)

    Sediment profiles of 228Ra and 232Th and water column profiles of 228Ra are presented for San Nicolas and San Pedro Basins, located in the Southern California Borderland. These data are used to estimate fluxes of 228Ra from the sediments, the vertical eddy diffusivity (Kz) in the water column, and the upwelling velocity (wz). The fluxes of 228Ra from sediments, estimated by integrating the downcore deficiency of 228Ra with respect to its parent nuclide 232Th, are 335 ± 115 atoms/m2s for San Nicolas Basin and 166 ± 50 atom/m2s for San Pedro Basin. San Nicolas Basin sediments have an excess of 228Ra in the upper 4 cm, but irrigation and diffusion create a 228Ra deficiency from 4 to 30 cm. San Pedro Basin sediments are anoxic and laminated, have a 228Ra deficiency above 6-12 cm depth, and have no surface excess of 228Ra. Basin waters appear to be well-mixed horizontally below sill depth and in steady-state with respect to 228Ra. Concentrations of 228Ra increase from sill depth to the bottom, ranging from approximately 1.0 dpm/100 kg to 2.4 dpm/100 kg in San Nicolas Basin and from 1.6 dpm/100 kg to 3.1 dpm/100 kg in San Pedro Basin. Estimates of Kz and wz at several horizons in these basins are made by evaluating two steady state mass balance equations, one for 228Ra and one for heat. Upper limits for Kz are 23 cm2/s at 1,700 m in San Nicolas and 2.8 cm2/s at 850 m in San Pedro Basin. The best estimate for Kz and wz for the deeper part of the basins are: Kz = 5-17 cm2/s and wz = 50-150 m/y in San Nicolas Basin, and Kz = 1-3 cm2/s and wz = 20-50 m/y in San Pedro Basin

  14. Site testing at San Pedro Mártir

    OpenAIRE

    J. Echeverr\\u00EDa

    2003-01-01

    En este art culo revisamos el trabajo realizado para medir la turbulencia atmosf erica al nivel del suelo en el Observatorio Astron omico Nacional en San Pedro M artir. Arguimos, basados en resultados m as modernos obtenidos a lo largo de m as de una d ecada, que la mediana de la calidad de imagen es de 0.55 segundos de arco a una altura de 15m. Este an alisis comprueba que San Pedro M artir es uno de los mejores sitios del mundo en cuanto a calidad de imagen y probablemente el ...

  15. 76 FR 22809 - Safety Zone; Bay Ferry II Maritime Security Exercise; San Francisco Bay, San Francisco, CA

    Science.gov (United States)

    2011-04-25

    ...reduce burden. Protection of Children We have analyzed this rule...Order 13045, Protection of Children From Environmental Health Risks...may disproportionately affect children. Indian Tribal Governments...Ferry II Maritime Security Exercise; San Francisco Bay, San...

  16. 27 CFR 9.157 - San Francisco Bay.

    Science.gov (United States)

    2010-04-01

    ... 2010-04-01 false San Francisco Bay. 9.157 Section 9.157 Alcohol...Viticultural Areas § 9.157 San Francisco Bay. (a) Name. The name of the viticultural...described in this section is “San Francisco Bay.” (b) Approved Maps . The...

  17. The 1793 eruption of San Martín Tuxtla volcano, Veracruz, Mexico

    Science.gov (United States)

    Espíndola, J. M.; Zamora-Camacho, A.; Godinez, M. L.; Schaaf, P.; Rodríguez, S. R.

    2010-11-01

    San Martín Tuxtla (N18.562°; W95.199°, 1659 masl) is a basaltic volcano located in southern Veracruz, a Mexican State bordering the Gulf of Mexico. It rises in a volcanic field strewn with monogenetic volcanic cones, maars and three other large volcanoes mostly dormant since the late Pliocene: Santa Marta, San Martín Pajapan and Cerro El Vigía. The latest eruptive event of San Martín occurred in 1793 and was described by Don José Mariano Moziño, a naturalist under the commission of the Viceroy of the then New Spain. In this work we present results of the study of this eruption based on historical accounts and field observations. We identified an ash deposit around the volcano related to the 1793 eruption, mapped its distribution and determined its granulometric, petrographic and geochemical characteristics. These studies suggest that the volcano began its activity with explosive phreatomagmatic explosions, which were followed by Strombolian activity; this period lasting from March to October 1793. The activity continued with an effusive phase that lasted probably 2 years. The eruption covered an area of about 480 km 2 with at least 1 cm of ash; the fines reaching distances greater than 300 km from the crater. A total mass of about 2.5 × 10 14 g was ejected and the volcanic columns probably reached altitudes of the order of 10 km during the most explosive phases. The lava emitted formed a coulee that descended the northern flank of the volcano and has an approximate volume of 2.0 × 10 7 m 3.

  18. Sediment geochemistry of Corte Madera Marsh, San Francisco Bay, California: have local inputs changed, 1830-2010?

    Science.gov (United States)

    Takesue, Renee K.; Jaffe, Bruce E.

    2013-01-01

    Large perturbations since the mid-1800s to the supply and source of sediment entering San Francisco Bay have disturbed natural processes for more than 150 years. Only recently have sediment inputs through the Sacramento-San Joaquin Delta (the Delta) decreased to what might be considered pre-disturbance levels. Declining sediment inputs to San Francisco Bay raise concern about continued tidal marsh accretion, particularly if sea level rise accelerates in the future. The aim of this study is to explore whether the relative amount of local-watershed sediment accumulating in a tidal marsh has changed as sediment supply from the Sacramento-San Joaquin Rivers has decreased. To address this question, sediment geochemical indicators, or signatures, in the fine fraction (silt and clay) of Sacramento River, San Joaquin River, San Francisco Bay, and Corte Madera Creek sediment were identified and applied in sediment recovered from Corte Madera Marsh, one of the few remaining natural marshes in San Francisco Bay. Total major, minor, trace, and rare earth element (REE) contents of fine sediment were determined by inductively coupled plasma mass and atomic emission spectroscopy. Fine sediment from potential source areas had the following geochemical signatures: Sacramento River sediment downstream of the confluence of the American River was characterized by enrichments in chromium, zirconium, and heavy REE; San Joaquin River sediment at Vernalis and Lathrop was characterized by enrichments in thorium and total REE content; Corte Madera Creek sediment had elevated nickel contents; and the composition of San Francisco Bay mud proximal to Corte Madera Marsh was intermediate between these sources. Most sediment geochemical signatures were relatively invariant for more than 150 years, suggesting that the composition of fine sediment in Corte Madera Marsh is not very sensitive to changes in the magnitude, timing, or source of sediment entering San Francisco Bay through the Delta. Nor does there appear to be a ubiquitous increase in the proportion of fine sediment from Corte Madera watershed accumulating in the marsh during the last 20 years when sediment inflows through the Delta have decreased to pre-disturbance levels. We conclude that a large, well-mixed reservoir, such as the transportable fine sediment pool in San Francisco Bay, is the primary source of sediment to Corte Madera Marsh, and this source buffers the marsh against changes in sediment supply from the Delta and local watersheds. This study also found that Corte Madera Marsh sediment between about 10-30 centimeters depth is highly contaminated with lead, likely a legacy of lead smelter operations near Carquinez Strait and leaded gasoline use.

  19. San Jose, California: Solar in Action (Brochure)

    Energy Technology Data Exchange (ETDEWEB)

    2011-10-01

    This brochure provides an overview of the challenges and successes of San Jose, CA, a 2008 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

  20. San Antonio, Texas: Solar in Action (Brochure)

    Energy Technology Data Exchange (ETDEWEB)

    2011-10-01

    This brochure provides an overview of the challenges and successes of San Antonio, TX, a 2008 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

  1. Geografia linguistica e etimologia : "sens" e "sans" en occitan

    OpenAIRE

    Sauzet, Patrick

    2012-01-01

    Une forme fréquente de la préposition qui signifie "sans" en occitan moderne est sans [san(z)], [s?n ( z ) ] aux côtés d'autres formes que telles que sens, sens , sens, shetz ... Les formes avec [a] ( ou [?] devant une nasale) ne représentent pas le résultat attendu en occitan du latin SINE latine (plus -s " adverbial") . " Sans " a donc été considéré comme emprunté au français (où SINE + S donne régulièrement sans). Il existe toutefois un certain nombre de difficultés avec cette hypothèse. T...

  2. Under- and Over-Nutrition Among Refugees in San Diego County, California

    OpenAIRE

    Rondinelli, Amanda J.; Morris, Meghan D.; Rodwell, Timothy C; Moser, Kathleen S; Paida, Paulino; Popper, Steve T.; BROUWER, KIMBERLY C.

    2010-01-01

    Resettled refugees often arrive in their host country with little knowledge of nutrition or available food choices. We explored nutrition-related issues of recent refugee arrivals to San Diego County—the second largest California resettlement site. In-depth interviews (n = 40) were conducted with refugees, health care practitioners, and refugee service organizations. Content analysis identified nutrition-related themes. Unhealthy weight gain after arrival was the most common concern and was a...

  3. El impacto psicosocial de la violencia en San Salvador / The psychosocial impact of violence in San Salvador

    Scientific Electronic Library Online (English)

    José Miguel, Cruz.

    1999-04-01

    Full Text Available En este estudio se busca lograr dos objetivos: primero, describir los niveles de victimización de la población salvadoreña a causa de la violencia delictiva y el tipo de población más afectada por ella; segundo, averiguar si estos niveles de victimización están relacionados con la presencia de norma [...] s, actitudes y comportamientos que favorecen la aparición de la violencia. Para ello se utilizaron los datos del proyecto ACTIVA de El Salvador, que fue realizado por el Instituto Universitario de Opinión Pública entre los meses de octubre y noviembre de 1996 con una muestra de 1 290 entrevistas personales, presuntamente representativa de las personas entre los 18 y 70 años de edad que residen en el Área Metropolitana de San Salvador. La muestra se obtuvo mediante un muestreo probabilístico y multietápico. Los resultados revelan que el nivel de victimización por la violencia es bastante alto en San Salvador y que afecta sobre todo a los hombres y a los jóvenes, y sugieren que las personas que han sido víctimas de agresiones graves suelen mostrar con más frecuencia que el resto normas de justificación y aprobación del uso de la violencia, inclinación por el uso de armas, y conductas de agresión hacia otras personas. Abstract in english This study had two objectives: (1) to describe the levels of victimization of Salvadorians due to criminal violence, and the population groups most affected by it; (2) to learn if these levels of victimization are related to the presence of norms, attitudes, and behaviors that encourage the occurren [...] ce of violence. For this purpose data from the ACTIVA project of El Salvador were used. The project was carried out by the University Institute of Public Opinion during October and November 1996, with a sample of 1 290 personal interviews that were presumed to be representative of people between 18 and 70 years of age living in the Metropolitan Area of San Salvador. The sample was obtained through multistage probability sampling. The results show that the level of victimization from violence is quite high in San Salvador and that it especially affects adult and young men. The results also indicate that persons who have been victims of serious aggression tend to show, more frequently than average, norms justifying and approving the use of violence, a tendency to use weapons, and aggressive behaviors toward other people.

  4. Late Glacial and Holocene Record of Hydroclimate in the San Luis Valley, Southern Colorado, USA

    Science.gov (United States)

    Yuan, F.; Koran, M.

    2012-12-01

    Lake sediments from the San Luis Valley, south-central Colorado, archive a detailed record of Late Glacial and Holocene climatic fluctuations in the southern Rocky Mountains. Together with radiometric dating analysis, measurements of grain size, magnetic susceptibility, total inorganic carbon (TIC), oxygen and carbon isotopic composition of the TIC fraction on sediment samples from San Luis Lake (at an average resolution of 60 years per sample) allow us to generate a sediment record of climatic change in the region spanning the last 16ka (1 ka=1000 cal yrs). This record documents the timing and duration of major climate episodes and trends, comparable to the existing paleoclimate records from the American Southwest. The Late Glacial record of San Luis Lake contains a big wet episode in the late part of the Mystery Interval (MI), a relatively dry climate during Bølling-Allerød (B/A) warm interval, and a relatively wet episode during the Younger Dryas (YD) interval, similar to the lake-level record found in the Estancia basin in central New Mexico. The early to middle Holocene record of d18O in the San Luis Lake parallels the calcite d18O record of Bison Lake in northern Colorado, documenting a history of significant change in precipitation seasonality across the northern boundary of the North American monsoon (NAM). The middle Holocene epoch is characterized by greater variations in magnetic susceptibility, d18O and d13C, suggesting the prevalence of wet, variable or transitional climate conditions. In contrast, the late Holocene climate is relatively dry, as indicated by more positive values of d18O in San Luis Lake. The results of this study reveal a complex history of climate evolution due to the interactions of two seasonally distinct precipitation regimes with mountainous landforms in the region.

  5. Investigaciones preliminares en el sitio San Carlos (Valle Calchaquí, Salta) / Preliminary researches at San Carlos site (Valle Calchaquí, Salta)

    Scientific Electronic Library Online (English)

    María Teresa, Iglesias; Luís, Capeletti; Fausto, Guerrero; María Victoria, Massa; Liliana, Zamagna.

    2007-12-01

    Full Text Available El sitio San Carlos de Tucumanahao se ubica en el sector meridional del Valle Calchaquí salteño. La región fue un importante centro de población indígena sobre la ruta por la que transitaron los primeros contingentes de españoles, siendo escenario de conquista y evangelización. Los procesos históric [...] os de los que ha sido partícipe han conformado un emplazamiento arqueológico multicomponente. Actualmente estos terrenos son de propiedad privada y se encuentran afectados por diversos factores de alteración antrópica. Este trabajo presenta los primeros resultados parciales de las tareas arqueológicas desarrolladas, que prioritariamente tendieron a la prospección y caracterización de las diferentes estructuras y espacios ocupados. Los relevamientos realizados hasta el momento otorgan los primeros elementos para el estudio de la organización social hispánica en el sitio. Abstract in english The San Carlos de Tucumanahao site is located in the southern sector of the Valle Calchaquí. Tucumanahao was an important native centre on the route of the first Spanish contingents and it's been witness of conquest and evangelization. Several historical processes have created there a multicomponent [...] archeological settlement. At the moment, the land is private property and suffers the efects of several anthropic alteration agents. This paper presents the result of the first archaeological intervention performed there, mainly prospection and survey of the structures and places former occuped. Such survey allowed us to identified elements related with Hispanic social organization.

  6. SANS-1 Experimental reports of 2000

    International Nuclear Information System (INIS)

    The instrument SANS-1 at the Geesthacht neutron facility GeNF was used for scattering experiments in 2000 at 196 of 200 days of reactor and cold source operation. The utilisation was shared between the in-house R and D program and user groups from different universities and research centers. These measurements were performed and analysed either by guest scientists or GKSS staff. The focus of the work in 2000 at the experiment SANS-1 was the structural investigation of hydrogen containing substances such as biological macromolecules (ribosomes, protein-RNA-complexes, protein solutions, glycolipids and membranes), molecules which are important in the fields of environmental research (refractoric organic substances) and technical chemistry (surfactants, micelles). (orig.)

  7. San Cristobal Galapagos wind power project

    Energy Technology Data Exchange (ETDEWEB)

    Tolan, J. [Sgurr Energy, Glasgow (United Kingdom)

    2009-07-01

    The San Cristobal Galapagos wind power project was described. With its unique endemic flora and fauna, the Galapagos Islands were declared a world heritage site and marine reserve. The San Cristobal wind project was initiated in 1999 to reduce the environmental impacts of energy use on the island, and has been operational since 2007. Three 800 kW wind turbines have been installed in order to reduce 52 per cent of the island's diesel generation. The project's high penetration wind-diesel hybrid system included 300 kW diesel generators, a 13.2 kV utility distribution system, and six 300 kW wind turbines. The project is located outside of Galapagos Petrel flight paths and nesting areas. Turbines from a factory in Spain were used. The wind turbine foundation was constructed from concrete sand and stone mined on the island. Photographs of the installation process were included. tabs., figs.

  8. San Rafael mining and fabrication complex today

    International Nuclear Information System (INIS)

    In Mendoza province, 35 km West San Rafael city, is located a CNEA installation for uranium ore extraction and concentration: the San Rafael Mining and Fabrication Complex. By the middle of the nineties, as a consequence of the very low prices of uranium concentrate in the international market and of the high internal production costs, uranium extraction was stopped. To day, the international price of the concentrate had a very important increase and the Government has decided the completion of the Atucha II Nuclear Power Station construction. Moreover, studies have been started for new nuclear power plants. In such circumstances the reactivation of the Complex will make sure the uranium supply for our nuclear power stations, contributing to the improvement of the energy generation mix in our country. (author)

  9. Semi Symmetric Method Of SAN Storage Virtualization

    OpenAIRE

    Jagli, Mrs. Dhanamma; Solanki, Ramesh; Temkar, Mrs. Rohini; Veshapogu, Laxmi

    2013-01-01

    Virtualization is one of the biggest buzzwords of the technology industry right at this moment. The fast growth in storage capacity and processing power in enterprise installations coupled with the need for high availability, requires Storage Area Network (SAN) architecture to provide seamless addition of storage and performance elements without downtime. The usual goal of virtualization is to centralize administrative tasks while improving scalability and work loads. This p...

  10. San Bernardino National Wildlife Refuge Well 10

    Energy Technology Data Exchange (ETDEWEB)

    Ensminger, J.T.; Easterly, C.E.; Ketelle, R.H.; Quarles, H.; Wade, M.C.

    1999-12-01

    The U.S. Geological Survey (USGS), at the request of the U.S. Fish and Wildlife Service, evaluated the water production capacity of an artesian well in the San Bernardino National Wildlife Refuge, Arizona. Water from the well initially flows into a pond containing three federally threatened or endangered fish species, and water from this pond feeds an adjacent pond/wetland containing an endangered plant species.

  11. Moving Towards SAN Storage: An Enterprise Perspective

    OpenAIRE

    rabi prasad padhy

    2012-01-01

    Abstract – One of the major components of any enterprise IT infrastructure is data storage. There has been continuous effort to explore new storage technologies to improve performance with respect to input/output operations, data availability, consolidation of storage assets and data protection and archiving. Storage has moved from the traditional Direct Attached Storage (DAS) to Network Attached Storage (NAS) and now to Storage Area Networks (SAN). Traditional storage subsystems like Server ...

  12. Site testing at san Pedro Mártir

    OpenAIRE

    Mauricio Tapia; David Hiriart; Michael Richer; Irene Cruz-Gonz\\u00E1lez

    2007-01-01

    El Observatorio Astronómico Nacional esta localizado en la Sierra San Pedro Mártir, en la península de Baja California, México, a una elevación de 2800 m sobre el nivel del mar. Sus coordenadas son 31_0204000 N y 115_2800000 W. Aquí se presentan los resultados resumidos de mas de tres décadas de recabar información sobre la caracterización astronómica del sitio. Se cubren los siguientes aspectos: estabilidad atmosférica, calidad de imagen, opacidad atmosférica en el visible, infra...

  13. A fatal irradiator accident in San Salvador

    International Nuclear Information System (INIS)

    A summary is given of a radiation accident involving personnel at an industrial irradiation facility for sterilising pre-packaged medical products in San Salvador. The medical treatment of the personnel is briefly described. The past accident review highlighted the fact that the accident is a classic example of what can happen, even to a plant with initially good safety features, when it is operated without the benefits of a supporting radiological protection infrastructure or any regulatory control. (U.K.)

  14. Second San Juan photoelectric astrolabe catalogue

    Science.gov (United States)

    Manrique, W. T.; Lizhi, Lu.; Perdomo, R.; Podesta, R. C.; Zezhi, Wang; Actis, E. L.; Fanmiao, Zeng; Zhifang, Zeng; Alonso, E.; Pacheco, A. M.; Bustos, G.

    1999-04-01

    According to the cooperation between Beijing, San Juan and La Plata Astronomical Observatories, the photoelectric astrolabe Mark II(PAII) of the Beijing Astronomical Observatory was moved and installed at the San Juan Observatory, Argentina in January, 1992 for observations of the catalogue of stars in the southern hemisphere. The first observing period was from Feb. 23, 1992 to Mar. 31, 1997. Using the data observed in San Juan with the instrument during this period, residuals for 11002 stars are reduced from about 405700 observations of stars over 1532 days. The mean precision of the residuals is +/-0.043''. The Second Catalogue of Stars (CPASJ2) has been compiled from double transits at both the eastern and western passages. There are 5241 stars in this catalogue, including 1225 FK5/FK4Supp stars, 794 FK5Ext stars, 1084 SRS stars, 937 CAMC4 stars, 310 GC stars and 891 IMF stars. The mean precisions are +/-3.2ms and +/-0.057'' in right ascension and declination, respectively. The magnitudes of stars are from 2.0 to 11.5. The declinations are from -3(deg) to -60(deg) . The mean epoch is 1994.9. Finally, systematic corrections of(CPASJ2-FK5) are given. The catalogue is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html

  15. SANS experiments and molecular dynamics studies of asphaltenes : driving force and morphology of nano-aggregation

    Energy Technology Data Exchange (ETDEWEB)

    Headen, T.F.; Skipper, N.T. [Univ. College London (United Kingdom). Dept. of Physics and Astronomy; Boek, E.S. [Schlumberger Cambridge Research, Cambridge (United Kingdom)

    2008-07-01

    Small-angle scattering experiments have shown that asphaltenes form nanoaggregates, but their shape, arrangement and the driving force behind their formation are not well understood. This study used SANS experiments to probe the shape of the asphaltene nanoaggregates in toluene solution and crude oil. Molecular Dynamics simulations of model asphaltene structures were used to discover the most probable morphology of asphaltene molecules in nanoaggregates and the nature and strength of the driving force behind aggregation. SANS experiments were conducted on heptane extracted asphaltenes in d8-toluene and on a crude oil. In addition, V-SANS experiments were conducted on the crude oil. Potential of Mean Force (PMF) calculations between pairs of asphaltene molecules were conducted in baths of explicit solvent molecules, both toluene and heptane. The free energy of aggregation was found to be approximately -8 kJ mol-1. There was little difference between the PMF curves in toluene and heptane, indicating that the nano-aggregation process is relatively independent of solvent. This implies that it is larger scale aggregation seen in the V-SANS experiments that occurs in heptane and does not occur in toluene. Larger simulations were also conducted for 6 asphaltene molecules in a box of solvent at 7wt per cent asphaltene. Preliminary results showed that aggregation does occur spontaneously. Further analysis of the simulations is ongoing to determine the most probable morphology of asphaltene aggregates. 2 refs.

  16. SANS study of hydrophobic effects on pressure-induced micro- and macrophase separations of block copolymers

    International Nuclear Information System (INIS)

    Hydrophobic effects on pressure-induced microphase separation of block copolymers were investigated by using small-angle neutron scattering (SANS). A block copolymer, pEOEOVE-b-pMOVE aqueous solution, which shows LCSTs (at 40 and 60 deg. C, for pEOEOVE and pMOVE homopolymers, respectively) was used. A phase diagram was obtained by tracing light-transmittance at 632.8nm by increasing temperature (T) at various pressures (P), which was a convex-upward function. The change in the slope of the phase boundary curve could be explained by volume change associated with mixing as well as 'iceberg' formation. SANS revealed that a microphase separation took place by pressurizing or increasing temperature. At 28 deg. C, the correlation length was observed to show continuous increase with divergence at 350MPa. This result showed that the block copolymers at 28 deg. C underwent macrophase separation and the transition was a second-order transition. At 45 deg. C, under atmospheric pressure, the SANS curve suggested formation of a BCC lattice structure with micelles composed of a central core of pEOEOVE. By pressurizing, the SANS peak related to the microphase separation disappeared, meaning dissolution of block copolymers. However, by further pressurizing, another peak re-appeared at 250MPa. This peak indicates the microphase separation of block copolymers is different from those observed under low pressures

  17. Evangelical Churches and Conservation in San Pacho, Darién (Colombian Caribbean

    Directory of Open Access Journals (Sweden)

    Aída Gálvez; Julio Salazar; Lorena Ramírez

    2009-07-01

    Full Text Available The locality of San Francisco de Asís (Acandí, Chocó overlooking the Caribbean Sea, is a well-known headquarter for actions related to environmental protection, thanks to the work of organization and individuals that try to alleviate the global environmental crisis. The great expansion of the evangelical movement among populations that formerly were catholic puts these new local churches in a position of social actors that can contribute to the conservation projects of marine life and forests. Although there is no organic link between the conservationist movement and evangelical churches, analyzinga shared experience in the journeys of protecting marine turtles, we see how the topic gains relevance for the religious organizations, according to the ethnography realized between 2008 and 2009. Thus, religious believes cease to be contrasts to the norm, to set themselves up as dependent orientations within the context in which they operate.

  18. Liminalidad social y negociación cultural: inmigrantes yucatecos en San Francisco, California / Social liminality and cultural negotiation: Immigrants from Yucatan, Mexico, in San Francisco, California, U.S.

    Scientific Electronic Library Online (English)

    Inés, Cornejo-Portugal; Patricia, Fortuny-Loret de Mola.

    2012-04-01

    Full Text Available Mediante los conceptos de liminalidad social y negociación cultural analizamos tres estudios de caso de yucatecos migrantes en San Francisco, California. Los migrantes estudiados dan cuenta de las diversas formas como utilizan los recursos sociales a los cuales tienen acceso (familiares, de creencia [...] , de amistad y vecinales) y que les permiten encontrar un equilibrio emocional relativo, frente a la tensión cultural de la sociedad destino. Abstract in english Within the theoretical concepts of social liminality and cultural negotiation, we analyze three case-studies of migrants from Yucatan in San Francisco, California. The case studies picture the diverse ways in which immigrants use social resources such as family, religion, friends and neighbor links [...] to enable them to achieve a relative emotional balance while dealing with the cultural tension prevailing in the destination.

  19. Development of 40m SANS and Its Utilization Techniques

    International Nuclear Information System (INIS)

    Small angle neutron scattering (SANS) has been a very powerful tool to study nanoscale (1-100 nm) bulk structures in various materials such as polymer, self assembled materials, nano-porous materials, nano-magnetic materials, metal and ceramics. Understanding the importance of the SANS instrument, the 8m SANS instrument was installed at the CN beam port of HANARO in 2001. However, without having a cold neutron source, the beam intensity is fairly low and the Q-range is rather limited due to short instrument length. In July 1, 2003, therefore, the HANARO cold neutron research facility project was launched and a state of the art 40m SANS instrument was selected as top-priority instrument. The development of the 40m SANS instrument was completed as a joint project between Korea Advanced Institute of Science and Technology and the HANARO in 2010. Here, we report the specification of a state of art 40m SANS instrument at HANARO

  20. In Brief: Quake shakes San Francisco Bay area

    Science.gov (United States)

    Showstack, Randy

    2007-11-01

    A magnitude 5.6 earthquake that shook the San Francisco, Calif., Bay area at 0304:54 UTC on 30 October was the largest temblor in that region since the deadly magnitude 6.9 Loma Prieta earthquake along the San Andreas Fault on 17 October 1989. The recent moderate quake was along the Calaveras Fault 15 kilometers northeast of San Jose, Calif., and was at a depth of 9.2 kilometers, according to the U.S. Geological Survey.

  1. Agriculture, irrigation, and drainage on the west side of the San Joaquin Valley, California: Unified perspective on hydrogeology, geochemistry and management

    Energy Technology Data Exchange (ETDEWEB)

    Narasimhan, T.N.; Quinn, N.W.T.

    1996-03-01

    The purpose of this report is to provide a broad understanding of water-related issues of agriculture and drainage on the west side of the San Joaquin Valley. To this end, an attempt is made to review available literature on land and water resources of the San Joaquin Valley and to generate a process-oriented framework within which the various physical-, chemical-, biological- and economic components of the system and their interactions are placed in mutual perspective.

  2. Active tectonic control on alluvial and fluvial deposits of San Juan river, San Juan, Argentina

    OpenAIRE

    Ruzycki, L.; Paredes, J.

    1996-01-01

    La construction et les corrélations de profils longitudinaux d'érosion-dépôt ont été effectuées pour les 7 principaux niveaux et les 3 principaux niveaux intermédiaires de la rivière San Juan au niveau de la Précordillère, entre les km 127 et 35 de la route n° 20 qui relie la ville de San Juan à la province de Calingasta. Les résultats montrent (1) que les niveaux principaux constituent une réponse complexe à des évènements climatiques et tectoniques d'échelle régionale, intervenus au cours d...

  3. San Diego Littoral Cell CRSMP Receiver Sites 2009

    Data.gov (United States)

    California Department of Resources — A total of 27 possible placement sites (some with multiple placement footprints) are incorporated into this San Diego Coastal Regional Sediment Management Plan to...

  4. San Francisco Littoral Cell CRSMP Sensitive Habitat 2012

    Data.gov (United States)

    California Department of Resources — Ecological regions of interest as identified in the San Francisco Coastal Region Sediment Management Plan.NPS identifies several special management areas within the...

  5. Characterization of the neutron detector upgrade to the GP-SANS and Bio-SANS instruments at HFIR

    International Nuclear Information System (INIS)

    Over the past year, new 1 m×1 m neutron detectors have been installed at both the General Purpose SANS (GP-SANS) and the Bio-SANS instruments at HFIR, each intended as an upgrade to provide improved high rate capability. This paper presents the results of characterization studies performed in the detector test laboratory, including position resolution, linearity and background, as well as a preliminary look at high count rate performance.

  6. Characterization of the Neutron Detector Upgrade to the GP-SANS and BIO-SANS Instruments at HFIR

    Energy Technology Data Exchange (ETDEWEB)

    Berry, Kevin D [ORNL; Bailey, Katherine M [ORNL; Beal, Justin D [ORNL; Diawara, Yacouba [ORNL; Funk, Loren L [ORNL; Hicks, J Steve [ORNL; Jones, Amy Black [ORNL; Littrell, Ken [ORNL; Summers, Randy [ORNL; Urban, Volker S [ORNL; Vandergriff, David H [ORNL; Johnson, Nathan [GE Energy Services; Bradley, Brandon [GE Energy Services

    2012-01-01

    Over the past year, new 1 m x 1 m neutron detectors have been installed at both the General Purpose SANS (GP-SANS) and the Bio-SANS instruments at HFIR, each intended as an upgrade to provide improved high rate capability. This paper presents the results of characterization studies performed in the detector test laboratory, including position resolution, linearity and background, as well as a preliminary look at high count rate performance.

  7. Characterization of the neutron detector upgrade to the GP-SANS and Bio-SANS instruments at HFIR

    Energy Technology Data Exchange (ETDEWEB)

    Berry, Kevin D., E-mail: berrykd@ornl.gov [Oak Ridge National Laboratory, Oak Ridge, TN 37831 (United States); Bailey, Katherine M.; Beal, Justin; Diawara, Yacouba; Funk, Loren; Steve Hicks, J.; Jones, A.B.; Littrell, Kenneth C.; Pingali, S.V.; Summers, P.R.; Urban, Volker S.; Vandergriff, David H. [Oak Ridge National Laboratory, Oak Ridge, TN 37831 (United States); Johnson, Nathan H.; Bradley, Brandon J. [GE Reuter-Stokes, Inc., Twinsburg, OH 44087 (United States)

    2012-11-21

    Over the past year, new 1 m Multiplication-Sign 1 m neutron detectors have been installed at both the General Purpose SANS (GP-SANS) and the Bio-SANS instruments at HFIR, each intended as an upgrade to provide improved high rate capability. This paper presents the results of characterization studies performed in the detector test laboratory, including position resolution, linearity and background, as well as a preliminary look at high count rate performance.

  8. 76 FR 54800 - International Business Machines (IBM), Software Group Business Unit, Quality Assurance Group, San...

    Science.gov (United States)

    2011-09-02

    ...Quality Assurance Group, San Jose, California; Notice of Negative Determination...Optim Data Studio Tools QA, San Jose, California (subject firm). The Department's...Optim Data Studio Tools QA, San Jose, California was totally or partially...

  9. 75 FR 71106 - San Jose Water Company; Notice of Application Accepted for Filing and Soliciting Comments...

    Science.gov (United States)

    2010-11-22

    ...No. 13799-000] San Jose Water Company; Notice...2010. d. Applicant: San Jose Water Company. e. Name...in Santa Clara County, California. g. Filed Pursuant to...Contact: Thomas Gee, San Jose Water Company, 1265...

  10. 40 CFR 81.164 - San Diego Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ...false San Diego Intrastate Air Quality Control Region. 81.164 Section...PURPOSES Designation of Air Quality Control Regions § 81.164 San Diego Intrastate Air Quality Control Region. The San Diego...

  11. 75 FR 57496 - Notice of Public Meeting, Santa Rosa and San Jacinto Mountains National Monument Advisory...

    Science.gov (United States)

    2010-09-21

    ...Service Notice of Public Meeting, Santa Rosa and San Jacinto Mountains National Monument...SUMMARY: In accordance with the Santa Rosa and San Jacinto Mountains National Monument...Forest Service (Forest Service) Santa Rosa and San Jacinto Mountains National...

  12. 76 FR 53695 - Notice of Public Meeting, Santa Rosa and San Jacinto Mountains National Monument Advisory...

    Science.gov (United States)

    2011-08-29

    ...Service Notice of Public Meeting, Santa Rosa and San Jacinto Mountains National Monument...SUMMARY: In accordance with the Santa Rosa and San Jacinto Mountains National Monument...Forest Service (Forest Service) Santa Rosa and San Jacinto Mountains National...

  13. 75 FR 65985 - Safety Zone: Epic Roasthouse Private Party Firework Display, San Francisco, CA

    Science.gov (United States)

    2010-10-27

    ...yards off Epic Roasthouse Restaurant, San Francisco, CA during...yards off Epic Roasthouse Restaurant, San Francisco, CA. The...entities'' comprises small businesses, not-for-profit organizations...yards off Epic Roasthouse Restaurant, San Francisco, CA....

  14. 40 CFR 81.21 - San Francisco Bay Area Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ...2010-07-01 false San Francisco Bay Area Intrastate Air Quality Control Region...Regions § 81.21 San Francisco Bay Area Intrastate Air Quality Control Region. The San Francisco Bay Area Intrastate Air Quality Control...

  15. 33 CFR 334.860 - San Diego Bay, Calif., Naval Amphibious Base; restricted area.

    Science.gov (United States)

    2010-07-01

    ... false San Diego Bay, Calif., Naval...Base; restricted area. 334.860 Section...860 San Diego Bay, Calif., Naval...Base; restricted area. (a) The Area...in Middle San Diego Bay in an area extending...

  16. 33 CFR 165.1152 - San Pedro Bay, California-Regulated navigation area.

    Science.gov (United States)

    2010-07-01

    ...false San Pedro Bay, California-Regulated navigation area. 165.1152 ...1152 San Pedro Bay, California—Regulated navigation area. (a) Applicability...1) The San Pedro Bay Regulated Navigation Area (RNA)...

  17. 33 CFR 334.938 - Federal Correctional Institution, Terminal Island, San Pedro Bay, California; restricted area.

    Science.gov (United States)

    2010-07-01

    ...Terminal Island, San Pedro Bay, California; restricted area. 334.938 Section 334...Terminal Island, San Pedro Bay, California; restricted area. (a) The area. The waters of San Pedro Bay on the east side of...

  18. San Francisco Bay National Wildlife Refuge Complex Annual Narrative Report 1981

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The San Francisco Bay National Wildlife Refuge Complex comprises of three refuges including the San Francisco Bay National Wildlife Refuge, the San Pablo Bay...

  19. 75 FR 28509 - Revisions to the California State Implementation Plan, San Joaquin Valley Unified Air Pollution...

    Science.gov (United States)

    2010-05-21

    ...Plan, San Joaquin Valley Unified Air Pollution Control District AGENCY: Environmental...the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD...v. San Joaquin Valley Unified Air Pollution Control District, No....

  20. 76 FR 45212 - Revisions to the California State Implementation Plan, San Joaquin Valley Unified Air Pollution...

    Science.gov (United States)

    2011-07-28

    ...Plan, San Joaquin Valley Unified Air Pollution Control District AGENCY: Environmental...approve San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD...San Joaquin Valley Unified Air Pollution Control District...

  1. 76 FR 26609 - Revisions to the California State Implementation Plan, San Joaquin Valley Unified Air Pollution...

    Science.gov (United States)

    2011-05-09

    ...Plan, San Joaquin Valley Unified Air Pollution Control District AGENCY: Environmental...the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD...v. San Joaquin Valley Unified Air Pollution Control District (No....

  2. 75 FR 35504 - San Rafael Cattle Company; Habitat Conservation Plan; Santa Cruz County, AZ

    Science.gov (United States)

    2010-06-22

    ...20124-1112-0000-F2] San Rafael Cattle Company; Habitat Conservation Plan...SUMMARY: San Rafael Cattle Company (Applicant) has applied to the...under the authority of the San Rafael Cattle Company. We invite public comment...

  3. 75 FR 3996 - Revisions to the California State Implementation Plan, San Joaquin Valley Air Pollution Control...

    Science.gov (United States)

    2010-01-26

    ...Implementation Plan, San Joaquin Valley Air Pollution Control District AGENCY: Environmental...revisions to the San Joaquin Valley Air Pollution Control District (SJVAPCD or...Planning, San Joaquin Valley Air Pollution Control District; letter...

  4. 75 FR 2079 - Revisions to the California State Implementation Plan, San Joaquin Valley Air Pollution Control...

    Science.gov (United States)

    2010-01-14

    ...Implementation Plan, San Joaquin Valley Air Pollution Control District AGENCY: Environmental...revisions to the San Joaquin Valley Air Pollution Control District (SJVAPCD) portion... 3. B. San Joaquin Valley Air Pollution Control District Comments...

  5. Etudes théoriques et numériques des équations primitives de l'océan sans viscosité

    OpenAIRE

    Rousseau, Antoine

    2005-01-01

    Cette thèse regroupe un ensemble d'analysesmathématiques et de simulations numériques relatives aux équations primitives de l'océan (EP) sans viscosité, en domaine borné. Les EP sont des équations bien connues de la mécanique des fluides, qui s'appuient sur les approximations hydrostatique et de Boussinesq. On rappelle en introduction pourquoi ces équations, considérées avec des conditions aux limites de type local, sont mal posées. Dans une première partie (chapitres 1 à 4), on s'intéresse à...

  6. Traditional Herbal Formula Oyaksungi-San Inhibits Adipogenesis in 3T3-L1 Adipocytes

    OpenAIRE

    Yoo, Sae-Rom; Seo, Chang-Seob; Shin, Hyeun-kyoo; JEONG, Soo-Jin

    2015-01-01

    Background. Oyaksungi-san (OYSGS) is a herbal formula that has been used for treating cardiovascular diseases in traditional Asian medicine. Here, we investigated the antiadipogenic effect of OYSGS extract in 3T3-L1 adipose cells. Methods. 3T3-L1 preadipocytes were differentiated into adipocytes with or without OYSGS. After differentiation, we measured Oil Red O staining, glycerol-3-phosphate dehydrogenase (GPDH) activity, leptin production, mRNA, and protein levels of adipogenesis-related fa...

  7. Review and analysis of mammographies of Servicio de Radiologia Hospital San Juan de Dios

    International Nuclear Information System (INIS)

    The concept of mammography is defined. The mammography has been estimated as the best tool currently available for the detection of breast cancer in its early stages, in addition, have been detected clinically occult lesions. Mammographies of the Servicio de Radiologia Hospital San Juan de Dios were analyzed for a total of 1250. The findings were related as static between BIRADS categorization and inherited-family factors, geographical and personal pathological of patients treated in the period September 2012 to January 2013

  8. Risk behaviors for HIV in sexual partnerships of San Francisco injection drug users.

    Science.gov (United States)

    Chen, Yea-Hung; McFarland, Willi; Raymond, Henry Fisher

    2014-01-01

    While injection drug users (IDU) in the USA are known to form sexual partnerships with IDU as well as non-IDU, scientific research is lacking regarding risk behaviors for HIV transmission within these partnerships. Such information could aid HIV-prevention efforts among IDU and could also explain the relatively low prevalence of HIV among non-IDU heterosexuals in US cities such as San Francisco. Using data from a cross-sectional sample of San Francisco IDU we estimated (1) the prevalence of IDU-IDU and IDU-non-IDU sexual partnerships, (2) the frequency of serodiscordant unprotected intercourse in IDU-IDU and IDU-non-IDU sexual partnerships, and (3) the frequency of concurrence of sexual risk and injection-related risk within IDU-IDU sexual partnerships. An estimated 68% of sexually active San Francisco IDU is in IDU-IDU partnerships. Our analysis suggests that compared to IDU-non-IDU partnerships, IDU-IDU partnerships include a greater rate of episodes of serodiscordant unprotected intercourse (incidence rate ratio: 10.2; 95% confidence interval: 2.1-50.7). In fact, our data suggest that 92% of serodiscordant sexual episodes involving IDU are attributable to IDU-IDU pairings. Unprotected intercourse and needle sharing occur concurrently in an estimated 29% of IDU-IDU partnerships. Our data suggest that HIV-transmission risk is higher within IDU-IDU partnerships than it is within IDU-non-IDU partnerships. This disparity could explain the relatively low prevalence of HIV among non-IDU heterosexuals in San Francisco. We recommend that HIV-prevention efforts among IDU continue to address sexual risk behaviors for HIV transmission in addition to injection-related risk behaviors, with emphasis on IDU-IDU partnerships. PMID:24093881

  9. Spatiotemporal variation patterns of plants and animals in San Carlos de Apoquindo, central Chile Patrones de variación espaciotemporal de plantas y animales en San Carlos de Apoquindo, Chile central

    OpenAIRE

    FABIÁN M JAKSIC

    2001-01-01

    I summarize what is known about the mediterranean ecosystem represented in San Carlos de Apoquindo (33º 23' S, 70º 31' W), a rugged area of 835 ha located ca. 20 km east of downtown Santiago on the Andean foothills. This site attracted numerous researchers during 1976-1990 because of its proximity to Santiago and its relatively protected status. I review the literature, and provide unpublished information on this site. A total of 132 literature entries describe the ecology of San Carlos de Ap...

  10. Existing Whole-House Solutions Case Study: Build San Antonio Green, San Antonio, Texas

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2013-06-01

    PNNL, FSEC, and CalcsPlus provided technical assistance to Build San Antonio Green on three deep energy retrofits. For this gut rehab they replaced the old roof with a steeper roof and replaced drywall while adding insulation, new HVAC, sealed ducts, transfer grilles, outside air run-time ventilation, new lighting and water heater.

  11. Arquitectura de remeseros en San Pedro de Atacama / Architecture of ranchers in San Pedro de Atacama

    Scientific Electronic Library Online (English)

    Flora, Vilches; Lorena, Sanhueza; Cristina, Garrido.

    2014-12-01

    Full Text Available El cuerpo de material arquitectónico asociado al tiempo de las remesas de ganado en San Pedro de Atacama no parece formar parte del discurso patrimonial local. Sin embargo, su propia invisibilidad y memoria demostrarían que forma parte importante de la identidad atacameña. [...

  12. 75 FR 28194 - Safety Zone; San Clemente 3 NM Safety Zone, San Clemente Island, CA

    Science.gov (United States)

    2010-05-20

    ... Zone; San Clemente Island, CA in the Federal Register (74 FR 39584). We received one comment on the...) Environmental Impact Statement (EIS)/Overseas EIS (OEIS) (Record of Decision, January 30, 2009) (74 FR 5650... critical naval training. Safety Zone `F' As stated above, commenters argued that section ``F'' of...

  13. 75 FR 77756 - Safety Zone; San Diego Parade of Lights Fireworks, San Diego, CA

    Science.gov (United States)

    2010-12-14

    ...zone unless authorized by the Captain of the Port, or his designated...Purpose Fireworks and Stage FX America INC are sponsoring the San...zone unless authorized by the Captain of the Port, or his designated...to act on the behalf of the Captain of the Port. (d)...

  14. 78 FR 38584 - Safety Zone; San Diego Symphony Summer POPS Fireworks 2013 Season, San Diego, CA

    Science.gov (United States)

    2013-06-27

    ...zone unless authorized by the Captain of the Port, or his designated...1221 et seq.). Fireworks America is sponsoring the San Diego...zone unless authorized by the Captain of the Port, or his designated...to act on the behalf of the Captain of the Port. (d)...

  15. 78 FR 57482 - Safety Zone; America's Cup Aerobatic Box, San Francisco Bay, San Francisco, CA

    Science.gov (United States)

    2013-09-19

    ...Table of Acronyms ACRM America's Cup Race Management COTP Captain of the Port DHS Department...associated with the ``America's Cup World Series...period as announced by America's Cup Race Management...September 23, 2013. The Captain of the Port San...

  16. Risk behaviors of Filipino methamphetamine users in San Francisco: implications for prevention and treatment of drug use and HIV.

    OpenAIRE

    Nemoto, Tooru; Operario, Don; Soma, Toho

    2002-01-01

    OBJECTIVE: This study describes the demographics, HIV risk and drug use behaviors, and psychosocial status of Filipino American methamphetamine users in the San Francisco Bay area. METHODS: Individual interviews were conducted with 83 Filipino American methamphetamine users, recruited through snowball sampling methods. A structured survey questionnaire included measures of drug use behaviors, HIV-related sexual behaviors, psychosocial factors, and demographics. RESULTS: Filipino methamphetami...

  17. Draft Genome Sequences of Marine RNA Viruses SF-1, SF-2, and SF-3 Recovered from San Francisco Wastewater

    OpenAIRE

    Greninger, Alexander L; Derisi, Joseph L.

    2015-01-01

    We report the draft genome sequences of marine RNA viruses SF-1, SF-2, and SF-3, which were assembled from metagenomic sequencing of organisms in San Francisco wastewater. These viruses were most closely related to marine RNA virus JP-B and algae viruses.

  18. Sequence Stratigraphy of the Dakota Sandstone, Eastern San Juan Basin, New Mexico, and its Relationship to Reservoir Compartmentalization

    Energy Technology Data Exchange (ETDEWEB)

    Varney, Peter J.

    2002-04-23

    This research established the Dakota-outcrop sequence stratigraphy in part of the eastern San Juan Basin, New Mexico, and relates reservoir quality lithologies in depositional sequences to structure and reservoir compartmentalization in the South Lindrith Field area. The result was a predictive tool that will help guide further exploration and development.

  19. Study of the properties of an electron linac beam by means of the electromagnetic fields associated with the beam; Etude des proprietes du faisceau d'electrons d'un accelerateur lineaire au moyen des champs electromagnetiques associes a ce faisceau

    Energy Technology Data Exchange (ETDEWEB)

    Bergere, R. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1967-07-01

    For measuring the diverse characteristic parameters of a Linac electron beam, the one method causing the least perturbation to the electron beam itself, consists in the detection of signals induced in certain types of detectors by the electromagnets fields associated with the beam. Some particular detectors are then described, for measuring the following characteristic parameters of a Linac electron beam; a) electron beam peak current, a) longitudinal dimension and density of an elementary electron bunch, c) phase position of the electrons on the travelling sine wave of the accelerating field, d) transverse position of the beam. These particular electrodes are then used to provide experimental data In order to check the theoretical computations giving the longitudinal and transversal motions Of the electrons during their acceleration. (author) [French] Parmi les methodes de mesure des diverses caracteristiques du faisceau d'electrons d'un accelerateur lineaire, celles qui perturbent le moins le faisceau sont les methodes dans lesquelles l'energie du signal de mesure provient de la perturbation par l'electrode de mesure des champs electromagnetiques associes au faisceau. On decrit les electrodes de ce type qui ont ete mises au point pour mesurer les caracteristiques suivantes du faisceau d'electrons: a) courant crete, b) extension en phase d'un paquet elementaire d'electrons, c) phase d'accrochage des electrons, d) position transversale moyenne des electrons. On decrit ensuite comment les signaux provenant de ces diverses electrodes peuvent etre utilises pour verifier experimentalement les previsions theoriques des mouvements longitudinaux et transversaux des electrons en cours d'acceleration. (auteur)

  20. Inversion climatology at San Jose, California

    Science.gov (United States)

    Morgan, T.; Bornstein, R. D.

    1977-01-01

    Month-to-month variations in the early morning surface-based and near-noon elevated inversions at San Jose, Calif., were determined from slow rise radiosondes launched during a four-year period. A high frequency of shallow, radiative, surface-based inversions were found in winter during the early morning hours, while during the same period in summer, a low frequency of deeper based inversions arose from a combination of radiative and subsidence processes. The frequency of elevated inversions in the hours near noon was lowest during fall and spring, while inversion bases were highest and thicknesses least during these periods.

  1. Amplification sans bruit d'images optiques

    Science.gov (United States)

    Gigan, S.; Delaubert, V.; Lopez, L.; Treps, N.; Maitre, A.; Fabre, C.

    2004-11-01

    Nous utilisons un Oscillateur Paramétrique Optique (OPO) pompé sous le seuil dans le but d'amplifier une image multimode transverse sans dégradation du rapport signal à bruit. Le dispositif expérimental met en œuvre un OPO de type II triplement résonant et semi-confocal pour le faisceau amplifié. L'existence d'effets quantiques lors de l'amplification multimode dans un tel dispositif a été montrée expérimentalement. Plus généralement, ceci nous a amené à étudier les propriétés quantiques transverses des faisceaux lumineux amplifiés. Une telle étude peut trouver des applications non seulement en imagerie, mais également dans le traitement quantique de l'information.

  2. Characterization of nanoporous superalloy by SANS

    Science.gov (United States)

    Strunz, Pavel; Mukherji, Debashis; Näth, Oliver; Gilles, Ralph; Rösler, Joachim

    2006-11-01

    The self-assembly of the ??-precipitates in superalloy during thermo-mechanical exposure can be used to produce a nanoporous material by a selective phase dissolution. Nanoporous superalloy (CMSX4) samples, containing narrow channel-like pores, were investigated by high-resolution small-angle neutron scattering (SANS) in order to observe a time dependence of the pore depth during etching. The mean distance of pores and their depths were determined. A saturation of the pore depth with etching time was observed.

  3. Characterization of nanoporous superalloy by SANS

    International Nuclear Information System (INIS)

    The self-assembly of the ?'-precipitates in superalloy during thermo-mechanical exposure can be used to produce a nanoporous material by a selective phase dissolution. Nanoporous superalloy (CMSX4) samples, containing narrow channel-like pores, were investigated by high-resolution small-angle neutron scattering (SANS) in order to observe a time dependence of the pore depth during etching. The mean distance of pores and their depths were determined. A saturation of the pore depth with etching time was observed

  4. Characterization of nanoporous superalloy by SANS

    Energy Technology Data Exchange (ETDEWEB)

    Strunz, Pavel [Nuclear Physics Institute, CZ-25068 Rez (Czech Republic); Research Centre Rez, CZ-25068 Rez (Czech Republic)]. E-mail: strunz@ujf.cas.cz; Mukherji, Debashis [Institute of Applied Physics, ETH Zuerich, CH-8093 Zurich (Switzerland); IfW, TU Braunschweig, D-38106 Braunschweig, Langer Kamp 8 (Germany); Naeth, Oliver [IfW, TU Braunschweig, D-38106 Braunschweig, Langer Kamp 8 (Germany); Gilles, Ralph [TU Muenchen, ZWE FRM-II, Lichtenbergstr. 1, D-85747 Garching (Germany); Roesler, Joachim [IfW, TU Braunschweig, D-38106 Braunschweig, Langer Kamp 8 (Germany)

    2006-11-15

    The self-assembly of the {gamma}'-precipitates in superalloy during thermo-mechanical exposure can be used to produce a nanoporous material by a selective phase dissolution. Nanoporous superalloy (CMSX4) samples, containing narrow channel-like pores, were investigated by high-resolution small-angle neutron scattering (SANS) in order to observe a time dependence of the pore depth during etching. The mean distance of pores and their depths were determined. A saturation of the pore depth with etching time was observed.

  5. Optimisation dans des réseaux backhaul sans fil

    OpenAIRE

    Nepomuceno, Napoleao

    2010-01-01

    Les avancées technologiques poussent l'industrie des télécommunications à fournir la capacité et la qualité nécessaire pour satisfaire la demande croissante de services sans fil à haut débit. De plus, avec les progrès des technologies d'accès, le goulot d'étranglement des réseaux cellulaires se déplace progressivement de l'interface radio vers le backhaul -- la partie de l'infrastructure du réseau qui fournit l'interconnexion entre les réseaux d'accès et de coeur. Aussi, la possibilité de dép...

  6. Early Maya writing at San Bartolo, Guatemala.

    Science.gov (United States)

    Saturno, William A; Stuart, David; Beltrán, Boris

    2006-03-01

    The ruins of San Bartolo, Guatemala, contain a sample of Maya hieroglyphic writing dating to the Late Preclassic period (400 B.C. to 200 A.D.). The writing appears on preserved painted walls and plaster fragments buried within the pyramidal structure known as "Las Pinturas," which was constructed in discrete phases over several centuries. Samples of carbonized wood that are closely associated with the writing have calibrated radiocarbon dates of 200 to 300 B.C. This early Maya writing implies that a developed Maya writing system was in use centuries earlier than previously thought, approximating a time when we see the earliest scripts elsewhere in Mesoamerica. PMID:16400112

  7. Study of silica sorbents by SANS

    International Nuclear Information System (INIS)

    Silica gels under study are materials intended for use as the packing sorbents in liquid chromatography (LC), namely in gel permeation chromatography (GPC). The quality of silica for LC should meet strict physical and chemical parameters. Especially in GPC is very important to know pore size and pore shape because they control the whole process of chromatographic separation. Pore size and thickness of pore wall can be measured by various methods. SANS technique is a nondestructive method providing an average information about a large number of scattering object in our case about objects (pore or wall) in silica and their shape. (author)

  8. 33 CFR 117.193 - San Leandro Bay.

    Science.gov (United States)

    2010-07-01

    ...2010-07-01 2010-07-01 false San Leandro Bay. 117.193 Section 117.193 Navigation... California § 117.193 San Leandro Bay. The drawspans of the California...0 and mile 0.1, between Alameda and Bay Farm Island, must open on...

  9. COSMOS (County of San Mateo Online System). A Searcher's Manual.

    Science.gov (United States)

    San Mateo County Superintendent of Schools, Redwood City, CA. Educational Resources Center.

    Operating procedures are explained for COSMOS (County of San Mateo Online System), a computerized information retrieval system designed for the San Mateo Educational Resources Center (SMERC), which provides interactive access to both ERIC and a local file of fugitive documents. COSMOS hardware and modem compatibility requirements are reviewed,…

  10. The San Diego Panasonic Partnership: A Case Study in Restructuring.

    Science.gov (United States)

    Holzman, Michael; Tewel, Kenneth J.

    1992-01-01

    The Panasonic Foundation provides resources for restructuring school districts. The article examines its partnership with the San Diego City School District, highlighting four schools that demonstrate promising practices and guiding principles. It describes recent partnership work on systemic issues, noting the next steps to be taken in San Diego.…

  11. Water chemistry of San Marcos area, Guatemala

    Energy Technology Data Exchange (ETDEWEB)

    Marini, Luigi [Universita di Genova, Dip. di Scienze della Terra, Genova (Italy); Cioni, Roberto; Guidi, Massimo [CNR, Ist. di Geocronologia e Geochimica Isotopica, Pisa (Italy)

    1998-06-01

    Two well-equilibrated Na-Cl geothermal liquids are recognisable in the San Marcos area. Both have the same Cl concentration (540 mg/kg) and the same isotopic composition ({delta}D of -66.5 per mille and {delta}{sup 18}O of -9 per mille) under reservoir conditions, but they come from two distinct aquifers with different temperatures , i.e. 240degC below La Cimarrona and 185degC below La Castalia. The numerous thermal Na-Cl to Na-Cl-HCO{sub 3} springs located in the San Marcos areas originate through dilution and boiling of these two geothermal liquids and different degrees of re-equilibration at lower temperatures. Silica and K contents are useful in discriminating between dilution, boiling and re-equilibration phenomena. Thermal Na-HCO{sub 3} waters, generated through conductive heat transfer or input of geothermal vapor or gases from below, delineate the extent of the geothermal reservoir(s) at depth. (Author)

  12. Puente Coronado - San Diego (EE. UU.

    Directory of Open Access Journals (Sweden)

    Editorial, Equipo

    1971-12-01

    Full Text Available This 3,5 km long bridge, joining the cities of San Diego and Coronado is one of the longest in the world of this type, and one of the three most important straight line bridges in the United States. Its supporting structure consists of reinforced concrete columns resting on footings or piles, according to whether they are under the sea water or on dry land. The superstructure is partly of metal plates and partly of box girders. The surfacing of the deck consists of asphalt epoxy concrete, of 5 cm depth. Special paint was applied to the bridge, including layers of vinyl, iron oxide and blue vinyl on a zinc base.Este puente, de unos 3 km y medio, que une las ciudades de San Diego y Coronado es uno de los de mayor longitud del mundo, de este tipo, y uno de los tres principales ortótropos de los Estados Unidos de América. Su infraestructura está constituida por pilas de hormigón armado apoyadas sobre pilotes o sobre zapatas, según estén en el mar o en tierra firme. La superestructura está formada, en parte, por chapas metálicas y, en parte, por vigas cajón. El acabado del tablero metálico se realizó a base de hormigón asfáltico de epoxi con un espesor de 5 cm. La pintura es especial y se compone de capas de vinilo, de óxido de hierro y de vinilo azul sobre una capa de cinc.

  13. The radiological accident in San Salvador

    International Nuclear Information System (INIS)

    On 5 February 1989, a radiological accident occurred at an industrial irradiation facility near San Salvador, the capital of the Republic of El Salvador. Prepackaged medical products are sterilized at the facility by irradiation by means of an intensely radioactive cobalt-60 source in a movable source rack. The accident happened when this source rack became stuck in the irradiation position. The operator bypassed the irradiator's already degraded safety systems and entered the radiation room with two other workers to free the source rack manually. The three workers were exposed to high radiation doses and developed the acute radiation syndrome. Their initial hospital treatment in San Salvador and subsequent more specialized treatment in Mexico City were effective in countering the acute effects. However, the legs and feet of two of the three men were so seriously injured that amputation was required. The worker who had been most exposed died six and a half months after the accident, his death being attributed to residual lung damage due to irradiation, exacerbated by injury sustained during treatment. The report details the events leading up to the accident, the circumstances of the accident itself and the response to it. From the facts established, lessons are derived for operators and suppliers of irradiators, national authorities, medical staff and international organizations. Detailed information on dosimetric and medical aspects of the accident for the specialist reader is presented in the appendices and annexes. 20 figs, 9 tabs, 24 photographs

  14. 75 FR 8804 - Safety Zone; NASSCO Launching of USNS Charles Drew, San Diego Bay, San Diego, CA.

    Science.gov (United States)

    2010-02-26

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; NASSCO Launching of USNS Charles Drew, San... the NASSCO Ship Launching for the United States Naval Ship (USNS) Charles Drew. The safety zone is... waters of the San Diego Bay to contribute to the safety of the USNS Charles Drew and surrounding...

  15. 75 FR 17329 - Safety Zone; Big Bay Fourth of July Fireworks, San Diego Bay, San Diego, CA

    Science.gov (United States)

    2010-04-06

    ... January 17, 2008, issue of the Federal Register (73 FR 3316). Public Meeting We do not now plan to hold a... support of the Big Bay July Fourth Show to Benefit the San Diego Armed Services YMCA. This temporary... Federal Register. Background and Purpose The San Diego Armed Services YMCA is sponsoring the Big Bay...

  16. 75 FR 8804 - Safety Zone; NASSCO Launching of USNS Charles Drew, San Diego Bay, San Diego, CA.

    Science.gov (United States)

    2010-02-26

    ...Safety Zone; NASSCO Launching of USNS Charles Drew, San Diego Bay, San Diego, CA...the United States Naval Ship (USNS) Charles Drew. The safety zone is necessary to...to contribute to the safety of the USNS Charles Drew and surrounding vessels as this...

  17. ASPECTOS PETROGRAFICOS Y GEOQUIMICOS DE LAS ROCAS METAMORFICAS DEL SECTOR BARRANCO DE LOBA (SERRANIA DE SAN LUCAS) / PETROGRAPHIC AND GEOCHEMISTRY ASPECTS OF METAMORPHIC ROCKS IN BARRANCO DE LOBA AREA (SERRANIA DE SAN LUCAS)

    Scientific Electronic Library Online (English)

    Carlos Alberto, García R.; Correa, Karen; Luis C., Mantilla F.; Luis, Bernal..

    2009-06-01

    Full Text Available Las rocas metamórficas aflorantes en la Plancha 64 (estribación NE de la Serranía de San Lucas, Cordillera Central), están agrupadas en dos unidades estratigráficas: una denominada formación Neis de San Lucas y otra unidad de carácter informal, denominada Unidad Metamórfica de Pinillos. Esta ultima, [...] compuesta por los Esquistos de Armenia y las Filitas de Tapoa. El Neis de San Lucas, consiste en neises cuarzo-feldespáticos (neises cuarzo-feldespáticos con biotita, neises cuarzo-feldespáticos con hornblenda) y rocas metamáficas (neis hornblendico, granulitas, metagabros). Los Esquistos de Armenia, se componen de esquistos pelíticos, tales como esquistos micáceos y esquistos micáceos con andalusita, y esquistos calco-silicatados, los cuales son cuarzosos con cantidades variables de minerales del grupo de la epidota, hornblenda y actinolita. Las Filitas de Tapoa son rocas compuestas de cuarzo y sericita con minerales opacos alterados. El metamorfismo del Neis de San Lucas es regional, alcanzando las facies anfibolita alta y granulita piroxénica. Edades U-Pb en circones de esta formación, apunta a un evento tectonotermal del Mesoproterozoico (1124Ma±22 Ma), relacionado con la orogenia Grenviliana, durante la consolidación del supercontinente Rodinia. Las rocas de la Unidad Metamórfica de Pinillos, es considerada por sus relaciones de campo, como de edad Paleozoica Temprano. Abstract in english The metamorphic rocks that outcrop in the San Lucas foothills (in the area covered by the map indentifed as number 64), are grouped in two stratigraphic units: The so-called San Lucas Gneiss Formation and the Pinillos Metamorphic Unit (informal stratigraphic denomination). This latter unit is compos [...] ed by The Armenia Schists and Tapoa Phyllites. The San Lucas Gneiss Formation, comprise quartz-feldspar gneisses (quartz-feldspar gneisses with biotite, quartz-feldspar gneisses with hornblende) and metamafc rocks (hornblende gneiss, granulites and metagabbros). The Armenia Schists is composed by pelite schists; such as micaceous schists; micáceous schists with andalusite; and calco-silicate schists, quartz rich and with variable amounts of minerals from epidote, hornblende and actinolite groups. The Tapoa Phyllite Rocks are composed by quartz and sericite with altered opaque minerals. The San Lucas Gneiss Formation Metamorphism is regional and reaches the high anfbolite and pyroxene granulites facies. The 1.124Ma ± 22 zircon U-Pb age, indicates a Mesoproterozoic tectonothermal event, related to the Grenville Orogeny, that took place during the Rodinia supercontinent consolidation. The Pinillos Metamorphic Rocks Unit, is Early Paleozoic in age, according to the feld relations.

  18. Petrología del plutón La Florida, sierra de San Luis / Petrology of the La Florida stock, Sierra de San Luis

    Scientific Electronic Library Online (English)

    E., Carol; P., Parrini; N., Brogioni.

    2007-09-01

    Full Text Available El plutón La Florida se localiza en la parte central de la Sierra de San Luis y se aloja en metasedimentitas regionales de grado medio pertenecientes al grupo micaesquistos derivadas de subgrauvacas y areniscas. Es de morfología semicircular, ligeramente elongado en dirección oblicua a la foliación [...] regional, la cual acompaña la forma del plutón en el contacto. Su composición es monzogranítica y marcadamente peraluminoso, y está compuesto por cuarzo, microclino, plagioclasa, muscovita, biotita y granate. El estudio detallado ha permitido establecer que el contenido de biotita de los monzogranitos disminuye hacia los bordes del cuerpo en tanto que la muscovita, generalmente porfiroblástica, aumenta, lo cual conduce a variaciones notables del índice de color de las rocas. Además, se registra una abundante pegmatización que forma tanto diques como cuerpos irregulares en el borde del intrusivo y también en las rocas de caja adyacentes al contacto. Esta zonación sería resultado del incremento de fluidos acuosos durante la etapa tardío magmática, que causaron reacciones subsólidas en la mineralogía ortomagmática. El magma está relacionado con el proceso subductivo desarrollado durante la orogenia famatiniana, muestra afinidad con fundidos sin-colisionales y un tren evolutivo compatible con magmas de tipo S. El plutón de La Florida exhibe algunas diferencias geológicas, petrográficas y composionales con otros granitoides sin-cinemáticos de la sierra de San Luis, encontrándose algunas similitudes solamente con rocas del cordón de El Realito. Abstract in english La Florida pluton is located in the central part of the Sierra de San Luis. It is a nearly semicircular-shape intrusion, slightly elongated perpendicularly to the main NNE-SSW country rocks foliation, which deforms at the pluton margins. The body is emplaced in medium-grade metamorphosed subgreywake [...] s and sandstones-derived rocks of the Micaschist Group. Intrusive rocks are mostly greyish medium to coarse-grained peraluminous monzogranites, composed of quartz, microcline, plagioclase, muscovite, biotite and minor garnet. Biotite content decreases from the core to the margin of the pluton while muscovite, usually forming up to 4 cm-long porphyroblasts, and garnet amounts increase in such direction. This leads to a remarkable variation of the colour index across the body, grading from 12 % to 0 % at the contact with the country rocks. Abundants dykes and irregular bodies of pegmatites intrude the outer parts of the pluton as well as the adjacent metasedimentary country rocks. The mineralogical zonation and the increase of pegmatization to the margins is interpreted here as the result of the enrichment in water-rich late-magmatic fluids which caused subsolid reactions with the minerals cristallized during the orthomagmatic stage. The magmatism is related to the Famatinian subduction, showing a syn-collisional affinity and S-type evolutionary trend. However, several differences have been found between La Florida and others syn-kinematic S-type granitoids from the Sierra de San Luis.

  19. Petrología del plutón La Florida, sierra de San Luis Petrology of the La Florida stock, Sierra de San Luis

    Directory of Open Access Journals (Sweden)

    E. Carol

    2007-09-01

    Full Text Available El plutón La Florida se localiza en la parte central de la Sierra de San Luis y se aloja en metasedimentitas regionales de grado medio pertenecientes al grupo micaesquistos derivadas de subgrauvacas y areniscas. Es de morfología semicircular, ligeramente elongado en dirección oblicua a la foliación regional, la cual acompaña la forma del plutón en el contacto. Su composición es monzogranítica y marcadamente peraluminoso, y está compuesto por cuarzo, microclino, plagioclasa, muscovita, biotita y granate. El estudio detallado ha permitido establecer que el contenido de biotita de los monzogranitos disminuye hacia los bordes del cuerpo en tanto que la muscovita, generalmente porfiroblástica, aumenta, lo cual conduce a variaciones notables del índice de color de las rocas. Además, se registra una abundante pegmatización que forma tanto diques como cuerpos irregulares en el borde del intrusivo y también en las rocas de caja adyacentes al contacto. Esta zonación sería resultado del incremento de fluidos acuosos durante la etapa tardío magmática, que causaron reacciones subsólidas en la mineralogía ortomagmática. El magma está relacionado con el proceso subductivo desarrollado durante la orogenia famatiniana, muestra afinidad con fundidos sin-colisionales y un tren evolutivo compatible con magmas de tipo S. El plutón de La Florida exhibe algunas diferencias geológicas, petrográficas y composionales con otros granitoides sin-cinemáticos de la sierra de San Luis, encontrándose algunas similitudes solamente con rocas del cordón de El Realito.La Florida pluton is located in the central part of the Sierra de San Luis. It is a nearly semicircular-shape intrusion, slightly elongated perpendicularly to the main NNE-SSW country rocks foliation, which deforms at the pluton margins. The body is emplaced in medium-grade metamorphosed subgreywakes and sandstones-derived rocks of the Micaschist Group. Intrusive rocks are mostly greyish medium to coarse-grained peraluminous monzogranites, composed of quartz, microcline, plagioclase, muscovite, biotite and minor garnet. Biotite content decreases from the core to the margin of the pluton while muscovite, usually forming up to 4 cm-long porphyroblasts, and garnet amounts increase in such direction. This leads to a remarkable variation of the colour index across the body, grading from 12 % to 0 % at the contact with the country rocks. Abundants dykes and irregular bodies of pegmatites intrude the outer parts of the pluton as well as the adjacent metasedimentary country rocks. The mineralogical zonation and the increase of pegmatization to the margins is interpreted here as the result of the enrichment in water-rich late-magmatic fluids which caused subsolid reactions with the minerals cristallized during the orthomagmatic stage. The magmatism is related to the Famatinian subduction, showing a syn-collisional affinity and S-type evolutionary trend. However, several differences have been found between La Florida and others syn-kinematic S-type granitoids from the Sierra de San Luis.

  20. Estudio petrográfico de las facies piroclásticas de la Formación Cerro Varela en el sur de la Sierra de San Luis Petrographic study of the pyroclastic facies of the Cerro Varela Formation in the south of the Sierra de San Luis

    Directory of Open Access Journals (Sweden)

    Amancay N. Martínez

    2010-11-01

    Full Text Available En la provincia de San Luis, existen tres sub-cuencas denominadas Las Salinas, Beazley y Mercedes. Estas cuencas corresponden a depocentros de rift elongados en sentido NO, que alojan rocas ígneas de edad triásica con espesores que llegan hasta los 4.000 metros. Las rocas ígneas de la Formación Cerro Varela forman parte del cerro homónimo que constituye los últimos asomos australes de la sierra de San Luis. Las riolitas triásicas que afloran en la sierra de Varela se disponen dentro de un esquema estructural extensional asociado a la formación de cuencas de tipo rift. Las unidades analizadas de la Formación Cerro Varela están compuestas por tobas cristalinas tanto de alto grado como de bajo grado de soldadura, de composición riolítica e interpretadas como depósitos originados por flujos piroclásticos. Por su litología, edad y contexto regional, las rocas de la Formación Cerro Varela integran el magmatismo gondwánico del Grupo Choiyoi de edad permotriásica de la Cordillera Frontal de Mendoza y San Juan.In the San Luis province, there are three sub-basins called Las Salinas, Beazley and Mercedes. These basins correspond to elongated rift depocenter with a NO orientation that host Triassic igneous rocks with thicknesses that reach 4,000 meters. The igneous rocks from Cerro Varela Formation, part of the homonym hill, is the last vestige of the southern Sierra San Luis. The Triassic rhyolites that crop up in the sierra de Varela, are placed within a structural pattern associated with the formation of extensional basins. Crystal tuffs of Cerro Varela are corresponds to tuffs with high and low degree of welding, of rhyolitic composition and interpreted as pyroclastic deposits. For its lithology, age and regional context, the rocks of the Cerro Varela Formation integrate the Gondwanic magmatism of Permo-Triassic age, related to the Choiyoi Group of the Cordillera Frontal of Mendoza and San Juan.

  1. Estudio petrográfico de las facies piroclásticas de la Formación Cerro Varela en el sur de la Sierra de San Luis / Petrographic study of the pyroclastic facies of the Cerro Varela Formation in the south of the Sierra de San Luis

    Scientific Electronic Library Online (English)

    Amancay N., Martínez; Daniel, Codega; David, Aguilera.

    2010-11-01

    Full Text Available En la provincia de San Luis, existen tres sub-cuencas denominadas Las Salinas, Beazley y Mercedes. Estas cuencas corresponden a depocentros de rift elongados en sentido NO, que alojan rocas ígneas de edad triásica con espesores que llegan hasta los 4.000 metros. Las rocas ígneas de la Formación Cerr [...] o Varela forman parte del cerro homónimo que constituye los últimos asomos australes de la sierra de San Luis. Las riolitas triásicas que afloran en la sierra de Varela se disponen dentro de un esquema estructural extensional asociado a la formación de cuencas de tipo rift. Las unidades analizadas de la Formación Cerro Varela están compuestas por tobas cristalinas tanto de alto grado como de bajo grado de soldadura, de composición riolítica e interpretadas como depósitos originados por flujos piroclásticos. Por su litología, edad y contexto regional, las rocas de la Formación Cerro Varela integran el magmatismo gondwánico del Grupo Choiyoi de edad permotriásica de la Cordillera Frontal de Mendoza y San Juan. Abstract in english In the San Luis province, there are three sub-basins called Las Salinas, Beazley and Mercedes. These basins correspond to elongated rift depocenter with a NO orientation that host Triassic igneous rocks with thicknesses that reach 4,000 meters. The igneous rocks from Cerro Varela Formation, part of [...] the homonym hill, is the last vestige of the southern Sierra San Luis. The Triassic rhyolites that crop up in the sierra de Varela, are placed within a structural pattern associated with the formation of extensional basins. Crystal tuffs of Cerro Varela are corresponds to tuffs with high and low degree of welding, of rhyolitic composition and interpreted as pyroclastic deposits. For its lithology, age and regional context, the rocks of the Cerro Varela Formation integrate the Gondwanic magmatism of Permo-Triassic age, related to the Choiyoi Group of the Cordillera Frontal of Mendoza and San Juan.

  2. Microbial biogeography of San Francisco Bay sediments

    Science.gov (United States)

    Lee, J. A.; Francis, C. A.

    2014-12-01

    The largest estuary on the west coast of North America, San Francisco Bay is an ecosystem of enormous biodiversity, and also enormous human impact. The benthos has experienced dredging, occupation by invasive species, and over a century of sediment input as a result of hydraulic mining. Although the Bay's great cultural and ecological importance has inspired numerous surveys of the benthic macrofauna, to date there has been almost no investigation of the microbial communities on the Bay floor. An understanding of those microbial communities would contribute significantly to our understanding of both the biogeochemical processes (which are driven by the microbiota) and the physical processes (which contribute to microbial distributions) in the Bay. Here, we present the first broad survey of bacterial and archaeal taxa in the sediments of the San Francisco Bay. We conducted 16S rRNA community sequencing of bacteria and archaea in sediment samples taken bimonthly for one year, from five sites spanning the salinity gradient between Suisun and Central Bay, in order to capture the effect of both spatial and temporal environmental variation on microbial diversity. From the same samples we also conducted deep sequencing of a nitrogen-cycling functional gene, nirS, allowing an assessment of evolutionary diversity at a much finer taxonomic scale within an important and widespread functional group of bacteria. We paired these sequencing projects with extensive geochemical metadata as well as information about macrofaunal distribution. Our data reveal a diversity of distinct biogeographical patterns among different taxa: clades ubiquitous across sites; clades that respond to measurable environmental drivers; and clades that show geographical site-specificity. These community datasets allow us to test the hypothesis that salinity is a major driver of both overall microbial community structure and community structure of the denitrifying bacteria specifically; and to assess whether patterns of diversity observed at the broadest of taxonomic scales also apply to patterns observed within a single extremely diverse gene (nirS). In sum, this project provides a first look at the forces driving the migration and selection of microbial communities in San Francisco Bay.

  3. Cianobacterias del embalse San Roque (Córdoba, Argentina) / Cyanobacteria of the San Roque reservoir (Córdoba, Argentina)

    Scientific Electronic Library Online (English)

    Inés Claudia, Daga; Marcelo Javier, Pierotto.

    2011-12-01

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

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

    International Nuclear Information System (INIS)

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

  5. El Paleoalto Cretáceo de San Juan de Ríoseco El Paleoalto Cretáceo de San Juan de Ríoseco

    OpenAIRE

    Galvis Jaime; Espriella Ricardo de la

    1990-01-01

    Al Occidente de Cundinamarca, hay un gran Sinclinal de dirección Norte-Sur cuya estratigrafía es completamente diferente a la del centro y Oriente de dicho departamento. El Cretáceo de dicha estructura, presenta características similares a las de la Formación Yaví descrita en el Sur del Tolima y el Hulla.  En san Juan de Ríoseco parece presentarse un Paleoalto, con sedimentación continental, ilimitado por grandes fallas de rumbo al Este y oeste de la estructura mencionada. In the Western part...

  6. San Andreas Fault in the Carrizo Plain

    Science.gov (United States)

    2000-01-01

    The 1,200-kilometer (800-mile)San Andreas is the longest fault in California and one of the longest in North America. This perspective view of a portion of the fault was generated using data from the Shuttle Radar Topography Mission (SRTM), which flew on NASA's Space Shuttle last February, and an enhanced, true-color Landsat satellite image. The view shown looks southeast along the San Andreas where it cuts along the base of the mountains in the Temblor Range near Bakersfield. The fault is the distinctively linear feature to the right of the mountains. To the left of the range is a portion of the agriculturally rich San Joaquin Valley. In the background is the snow-capped peak of Mt. Pinos at an elevation of 2,692 meters (8,831 feet). The complex topography in the area is some of the most spectacular along the course of the fault. To the right of the fault is the famous Carrizo Plain. Dry conditions on the plain have helped preserve the surface trace of the fault, which is scrutinized by both amateur and professional geologists. In 1857, one of the largest earthquakes ever recorded in the United States occurred just north of the Carrizo Plain. With an estimated magnitude of 8.0, the quake severely shook buildings in Los Angeles, caused significant surface rupture along a 350-kilometer (220-mile) segment of the fault, and was felt as far away as Las Vegas, Nev. This portion of the San Andreas is an important area of study for seismologists. For visualization purposes, topographic heights displayed in this image are exaggerated two times.The elevation data used in this image was acquired by SRTM aboard the Space Shuttle Endeavour, launched on February 11, 2000. SRTM used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on Endeavour in 1994. SRTM was designed to collect three-dimensional measurements of Earth's land surface. To collect the 3-D SRTM data, engineers added a mast 60 meters (about 200 feet) long, installed additional C-band and X-band antennas, and improved tracking and navigation devices. The mission is a cooperative project between the NASA, the National Imagery and Mapping Agency (NIMA) of the U.S. Department of Defense, and the German and Italian space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, Calif, for NASA's Earth Science Enterprise, Washington, D.C. JPL is a division of the California Institute of Technology in Pasadena.Distance to Horizon: 73 kilometers (45.3 miles) Location: 35.42 deg. North lat., 119.5 deg. West lon. View: Toward the Southeast Date Acquired: February 16, 2000 SRTM, December 14, 1984 Landsat Image: NASA/JPL/NIMA

  7. San Carlos Apache Tribe - Energy Organizational Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Rapp, James; Albert, Steve

    2012-04-01

    The San Carlos Apache Tribe (SCAT) was awarded $164,000 in late-2011 by the U.S. Department of Energy (U.S. DOE) Tribal Energy Program's "First Steps Toward Developing Renewable Energy and Energy Efficiency on Tribal Lands" Grant Program. This grant funded: ? The analysis and selection of preferred form(s) of tribal energy organization (this Energy Organization Analysis, hereinafter referred to as "EOA"). ? Start-up staffing and other costs associated with the Phase 1 SCAT energy organization. ? An intern program. ? Staff training. ? Tribal outreach and workshops regarding the new organization and SCAT energy programs and projects, including two annual tribal energy summits (2011 and 2012). This report documents the analysis and selection of preferred form(s) of a tribal energy organization.

  8. Slegs eenmaal gedoop - Sans Jamais Le Réitérer

    Directory of Open Access Journals (Sweden)

    P. C. Potgieter

    1994-01-01

    Full Text Available Baptized but once - Sans Jamais Le Réitérer In principle re-baptism is rejected by almost all churches and theologians. However, since some regard infant baptism as invalid, they encourage those who have not been baptized in faith and obedience to have it administered by immersion. On the contrary, it is argued that, no matter what circumstances prevailed, any baptism administered with water in the ‘Name of the Father and of the Son and of the Holy Spirit’ by a church official with the power to baptize is indeed valid and should never be repeated. Neither do baptism of confirmation or ‘double baptism’ offer a solution. At the root of the problem a difference of approach towards the covenant of grace is maintained. Churches maintaining the infant baptism tradition should, however, critically view the praxis of their doctrine and consider whether church members are perhaps too readily allowed to present their children for baptism.

  9. Depósitos descheelita asociados a lamprófiros/biotititas departamento San Martín, San Luis / Scheelite oredeposit associated with lamprophyres and biotitite in San Martín District, SanLuis province

    Scientific Electronic Library Online (English)

    Teresita, Montenegro; Ricardo O., Etcheverry; Pablo R., Leal; Milka K., De Brodtkorb.

    2009-06-01

    Full Text Available En el noreste de la sierra deSan Luis se encuentran numerosos yacimientos de wolframio. En el departamentoSan Martín hay tres grupos mineros: Los Avestruces, La Aspereza y CerritoBlanco. La geología del área está constituida por rocas del ComplejoMetamórfico Conlara, compuesto por esquistos cuarzo-m [...] icáceos de rumboaproximado N300º y por granitoides y pegmatitas. Además, hay lamprófiroscalcoalcalinos sobresaturados que conforman cuerpos subverticales de rumboNO-SE a O-E. Hacia la salbanda se incrementa la cantidad de biotita hasta un80-90% constituyendo una roca denominada biotitita que sería producto deprocesos metasomáticos y posterior cataclasis del lamprófiro. La biotititaresulta enriquecida en potasio, rubidio y wolframio, entre otros elementos. Lamineralización scheelítica, en ganga de cuarzo y biotita y/o turmalina, sedispone en vetas lenticulares que se alojan frecuentemente en el contacto entrelamprófiro/biotitita y roca de caja. La scheelita se dispone en ojos en losplanos de esquistosidad de la biotitita y diseminada en el cuarzo. Lamineralización de las venas ha tenido lugar a partir de fluidos de composicióncompleja XH2O: 0,87/0,82 - XCO2: 0,11/0,16 - XNaCl:0,015/0,013 - (CH4) y la scheelita precipitó por un proceso dedesmezcla por debajo de 320°C y 2,3 kb según el estudio de las inclusionesfluidas. La deformación de la fase achaliana y la intrusión del batolito LasChacras-Piedras Coloradas (Devónico a Carbonífero) son los eventos quepromovieron la removilización de fluidos de los sedimentos del basamento, sucanalización en fracturas, y el metasomatismo y la mineralización. Abstract in english Towards thenortheast of the Sierra de San Luis several wolfram ore deposits occur. In SanMartín district they are divided into three groups: Los Avestruces, LaEsperanza and Cerrito Blanco. The geology of this area is formed of the Conlarametamorphic complex composed of schists (with a strike of 300º [...] north),granitoids and pegmatites. In the same area subsaturated chalco-alkalinelamprophyres also appear as subvertical bodies with NW-NE strikes. Toward theboundaries of these rocks, the amount of biotite rises gradually from 80 to 90%developing a biotitite rock due to metasomatic processes and the superimposeddeformation. This biotitite is rich in K, Rb and W among other elements. Thescheelite mineralization (with quartz, biotite and tourmaline as non oreminerals) occurs in veins that are usually hosted between the lamprophyres andthe wall rocks. Scheelite also appears between the schist planes of thebiotitite rocks as well as disseminated crystals in quartz aggregates. Thismineralization took place from fluids with XH2O: 0.87/0.82 - XCO2:0.11/0.16 - XNaCl: 0.015/0.013 - (CH4) meanwhile the scheelite,according to the fluid inclusions studies, precipitated from unmixing processesbelow 320°C and 2.3 kb. Achaliana orogeny and the intrusion of LasChacras-Piedras Coloradas batholiths (Devonian-Carboniferous) were theresponsible for the slight rise of the fluids from the basement, the generationof fault structures through which they rose, the metasomatism and themineralization.

  10. San Agustín a través de sus representaciones

    Directory of Open Access Journals (Sweden)

    Luz Cecilia Beltrán

    2003-11-01

    Full Text Available San Agustín, Patrimonio Histórico y Cultural de la Humanidad, ubicado en las estribaciones del Macizo Colombiano, al sur del departamento del Huila, atesora en sus tierras uno de los más importantes vestigios arqueológicos del país. Tanto en el Parque Arqueológico como en lugares aledaños al municipio se pueden apreciar las diversas obras esculpidas por esta cultura de la cual aún no se precisan muchos aspectos. Lo que se sabe de ella ha sido producto de las investigaciones hechas desde 1756. Hasta estos parajes ha llegado un buen número de arqueólogos quienes con su aporte ayudaron a estructurar los conocimientos que hoy se tienen de esta cultura y sus representaciones, que giran en torno al culto por los muertos pero que aun así dejan entrever parte de las vivencias de sus pobladores.

  11. Phoenix Landing Ellipse Over San Francisco

    Science.gov (United States)

    2008-01-01

    This map compares the size of the area where NASA's Phoenix Mars Lander is expected to land, called the landing ellipse (red), to the size of the San Francisco Bay Area. Phoenix has a 99.9 percent probability of landing within the area denoted by its landing ellipse, a region in the northern plains of Mars centered at approximately 68 degrees north latitude, 233 degrees east longitude. The ellipse is about 70 kilometers (44 miles) long. Phoenix is most likely to land near the center of the ellipse, and least likely to land at its very edges. The Phoenix Mission is led by the University of Arizona, Tucson, on behalf of NASA. Project management of the mission is by NASA's Jet Propulsion Laboratory, Pasadena, Calif. Spacecraft development is by Lockheed Martin Space Systems, Denver.

  12. Site prospection at San Pedro Mártir

    Scientific Electronic Library Online (English)

    J, Bohigas; J. M., Núñez; P. F., Guillén; F, Lazo; D, Hiriart; T, Calvario; O, Escoboza; A, Córdova; J, Valdez; E, Sohn.

    Full Text Available Realizamos mediciones climatológicas y de seeing, en 5 sitios dentro del área reservada para uso astronómico en el Parque Nacional Sierra de San Pedro Mártir (SPM), durante al menos 15 noches en cada uno de ellos. Las variables climáticas se midieron con una estación meteorológica Davis y un anemóme [...] tro ultrasónico Metek. El seeing fue medido con un RoboDIMM fabricado por NOAO. Las mediciones climatológicas y de seeing fueron comparadas con las obtenidas simultáneamente con la instrumentación del Thirty Meter Telescope Project en el Observatorio Astronómico Nacional (OAN) en SPM. Las diferencias de seeing son pequeñas en la mayor parte de los casos. Recomendamos que se realice una campaña de larga duración en Llano Alto 1, ya que es un sitio de fácil acceso y el seeing parece ser ligeramente mejor. Abstract in english Seeing and weather observations were conducted at 5 sites within the boundaries of the area reserved for astronomy at the Sierra de San Pedro Mártir National Park (SPM), for at least 15 nights at each one of these. Weather variables were measured using a Davis Weather Station and a Metek Ultrasonic [...] Anemometer. Seeing information was collected with a NOAO RoboDIMM unit. Seeing and weather results were compared to those being delivered at the same time by the instrumentation of the Thirty Meter Telescope Project at the Observatorio Astronómico Nacional (OAN) at SPM. Seeing differences are small in most cases. We recommend a long term campaign at the easily accessible site Llano Alto 1, where we found that seeing may be slightly better.

  13. SANS spectra of the fractal supernucleosomal chromatin structure models

    International Nuclear Information System (INIS)

    The eukaryotic genome consists of chromatin-a nucleoprotein complex with hierarchical architecture based on nucleosomes, the organization of higher-order chromatin structures still remains unknown. Available experimental data, including SANS spectra we had obtained for whole nuclei, suggested fractal nature of chromatin. Previously we had built random-walk supernucleosomal models (up to 106 nucleosomes) to interpret our SANS spectra. Here we report a new method to build fractal supernucleosomal structure of a given fractal dimension or two different dimensions. Agreement between calculated and experimental SANS spectra was significantly improved, especially for model with two fractal dimensions—3 and 2.

  14. Fitting the datum of SANS with Pxy program

    International Nuclear Information System (INIS)

    The thesis introduces the basic theory of Small-Angle neutron scattering, enumerates several approximate law. It simply describes the components of Small-Angle neutron spectrometer (SANS) and the parameters of SANS of Budapest Neutron Center (BNC) in Hungary. During the period of studying at Budapest Neutron Center in Hungary, the experiments of wavelength calibration was carried out with SIBE and the SANS experiments of sample Micelles. The experiments are briefly introduced. Pxy program is used to fit these datum, and the results of wavelength and sizes of sample Micelles are presented. (authors)

  15. Nondestructive testing of high-temperature alloys by small angle neutron scattering (SANS)

    International Nuclear Information System (INIS)

    The suitability of the Small Angle Neutron Scattering (SANS) technique for the measurement of microstructural parameters of high-temperature alloys has been studied. The aim was the non-destructive determination of the creep damage for the estimation of the residual lifetime of service loaded gas turbine blades. In the first step the quantitative correlation between the SANS Signal and the microstructure of the material has been investigated using two oxide dispersion strengthened (ODS) alloys of simple microstructure. The size distributions of the dispersoid in the as-received alloy and the thermally induced growth of the dispersoid have been measured. Good agreement with results of transmission electron microscopy examinations was found. Subsequently the relationship between the SNS signal and the strain of a typical, creep loaded, ?'-strengthened Ni-base superalloy has been investigated. In a series of creep specimens made from the cast superalloy IN100, systematically increasing amounts of creep strain have been produced. With these specimens two parameters can be derived from the SANS scattering curve, each pair of values having a clear relationship with the creep strain. A hypothesis is discussed concerning the related scattering mechanism. (orig.)

  16. Sediment transport in the San Francisco Bay Coastal System: an overview

    Science.gov (United States)

    Barnard, Patrick L.; Schoellhamer, David H.; Jaffe, Bruce E.; McKee, Lester J.

    2013-01-01

    The papers in this special issue feature state-of-the-art approaches to understanding the physical processes related to sediment transport and geomorphology of complex coastal–estuarine systems. Here we focus on the San Francisco Bay Coastal System, extending from the lower San Joaquin–Sacramento Delta, through the Bay, and along the adjacent outer Pacific Coast. San Francisco Bay is an urbanized estuary that is impacted by numerous anthropogenic activities common to many large estuaries, including a mining legacy, channel dredging, aggregate mining, reservoirs, freshwater diversion, watershed modifications, urban run-off, ship traffic, exotic species introductions, land reclamation, and wetland restoration. The Golden Gate strait is the sole inlet connecting the Bay to the Pacific Ocean, and serves as the conduit for a tidal flow of ~ 8 × 109 m3/day, in addition to the transport of mud, sand, biogenic material, nutrients, and pollutants. Despite this physical, biological and chemical connection, resource management and prior research have often treated the Delta, Bay and adjacent ocean as separate entities, compartmentalized by artificial geographic or political boundaries. The body of work herein presents a comprehensive analysis of system-wide behavior, extending a rich heritage of sediment transport research that dates back to the groundbreaking hydraulic mining-impact research of G.K. Gilbert in the early 20th century.

  17. Pteridofitas indicadoras de alteración ambiental en el bosque templado de San Jerónimo Amanalco, Texcoco, México

    Directory of Open Access Journals (Sweden)

    Lucía Rodríguez Romero

    2008-06-01

    Full Text Available Pteridophytes that indicate environmental alteration in the temperate forest of San Jerónimo Amanalco, Texcoco, México. Pteridophytes that indicate environmental alteration in the San Jerónimo Amanalco temperate forest, Texcoco, Mexico. The patterns of distribution of 26 pteridophyte species were studied as possible indicators of environmental alteration in the temperate forest of San Jerónimo Amanalco, Texcoco, State of Mexico. The presence and abundance of the pteridoflora was studied in relation to edaphic, topographic and vegetation variables in 100 sampling locations within an area of 494 hectares. The relationship between these variables was studied using Canonical Correspondence Analysis. Five landscapes were recognized in the study zone according to the degree of deterioration: severe erosion, erosion, mountain with moderate reversible deterioration, mountain with no evident deterioration, and canyon with no evident deterioration. Cheilanthes bonariensis and Pellaea ternifolia are indicators of environmental degradation. The taxa that only grow in landscapes without apparent alteration are Adiantum andicola, Adiantum poiretii, Argyrochosma incana, Asplenium blepharophorum, Dryopteris pseudo filix-mas, Equisetum hyemale and Pteris cretica. Rev. Biol. Trop. 56 (2: 641-656. Epub 2008 June 30.

  18. Pteridofitas indicadoras de alteración ambiental en el bosque templado de San Jerónimo Amanalco, Texcoco, México

    Scientific Electronic Library Online (English)

    Lucía, Rodríguez Romero; Leticia, Pacheco; José Alejandro, Zavala Hurtado.

    2008-06-01

    Full Text Available Pteridophytes that indicate environmental alteration in the temperate forest of San Jerónimo Amanalco, Texcoco, México. Pteridophytes that indicate environmental alteration in the San Jerónimo Amanalco temperate forest, Texcoco, Mexico. The patterns of distribution of 26 pteridophyte species were st [...] udied as possible indicators of environmental alteration in the temperate forest of San Jerónimo Amanalco, Texcoco, State of Mexico. The presence and abundance of the pteridoflora was studied in relation to edaphic, topographic and vegetation variables in 100 sampling locations within an area of 494 hectares. The relationship between these variables was studied using Canonical Correspondence Analysis. Five landscapes were recognized in the study zone according to the degree of deterioration: severe erosion, erosion, mountain with moderate reversible deterioration, mountain with no evident deterioration, and canyon with no evident deterioration. Cheilanthes bonariensis and Pellaea ternifolia are indicators of environmental degradation. The taxa that only grow in landscapes without apparent alteration are Adiantum andicola, Adiantum poiretii, Argyrochosma incana, Asplenium blepharophorum, Dryopteris pseudo filix-mas, Equisetum hyemale and Pteris cretica. Rev. Biol. Trop. 56 (2): 641-656. Epub 2008 June 30.

  19. Provenance and tectonic setting of the protoliths of the Metamorphic Complexes of Sierra de San Luis

    Directory of Open Access Journals (Sweden)

    MG López de Luchi

    2003-12-01

    Full Text Available A major and trace element based characterization of the metasedimentary protoliths of three metamorphic units of Sierra de San Luis (Pringles Metamorphic Complex, San Luis Formation and Conlara Metamorphic Complex is presented. Geochemistry indicates a dominance of shales in the protoliths of San Luis Formation, whereas greywackes and shales made up the Conlara Metamorphic complex and mainly greywackes, the Pringles Metamorphic Complex. Both major element data and trace element ratios (i.e. Th/Sc, Th/U, indicate a source with an average upper crustal composition for the protoliths of the Pringles Metamorphic Complex, the San Luis Formation and the shales of the Conlara Metamorphic complex. A component with less evolved signature may be inferred for the metagreywackes of the Conlara metamorphic Complex. Mixed sourced detritus are indicated for the three units with clastic material resulting mainly from both andesitic and acidic/recycled detritus. The overall data consistently suggest a continental island arc and/or active margin setting as the more probable geodynamic scenario for the deposition of the sedimentary precursors of the studied units. In this context, a back-arc setting can account for the mixed nature of the inferred source areas with uplifted old basement and arc-related detritus as the end members of the mixtures. The inferred back-arc basin would have evolved through the Cambrian receiving the sediments derived from the Pampean Orogen to the east combined with probably some old crust exposures and to the west the source might have been controlled by the active continental margin.

  20. Mercury in the gold mining district of San Martin de Loba, South of Bolivar (Colombia).

    Science.gov (United States)

    Olivero-Verbel, Jesus; Caballero-Gallardo, Karina; Turizo-Tapia, Alexi

    2015-04-01

    Gold mining is responsible for most Hg pollution in developing countries. The aims of this study were to assess the levels of total Hg (T-Hg) in human hair, fish, water, macrophyte, and sediment samples in the gold mining district of San Martin de Loba, Colombia, as well as to determine fish consumption-based risks for T-Hg ingestion. T-Hg levels were measured by electrothermal atomization and atomic absorption spectroscopy. The overall mean T-Hg level in hair for humans in the mining district of San Martin de Loba was 2.12 ?g/g, whereas for the reference site, Chimichagua, Cesar, it was 0.58 ?g/g. Mean T-Hg levels were not different when considered within localities belonging to the mining district but differed when the comparison included Chimichagua. T-Hg levels in examined locations were weakly but significantly associated with age and height, as well as with fish consumption, except in San Martin de Loba. High T-Hg concentrations in fish were detected in Pseudoplatystoma magdaleniatum, Caquetaia kraussii, Ageneiosus pardalis, Cyrtocharax magdalenae, and Triportheus magdalenae, whereas the lowest appeared in Prochilodus magdalenae and Hemiancistrus wilsoni. In terms of Hg exposure due to fish consumption, only these last two species offer some guarantee of low risk for Hg-related health problems. Water, floating macrophytes, and sediments from effluents near mining sites also had high Hg values. In mines of San Martin de Loba and Hatillo de Loba, for instance, the geoaccumulation index (I(geo)) for sediments reached values greater than 6, indicating extreme pollution. In short, these data support the presence of a high Hg-polluted environment in this mining district, with direct risk for deleterious effects on the health of the mining communities. PMID:25354433

  1. Interpretaciones sobre la redención de censos enfitéuticos en Guatemala a finales del siglo XIX: Los casos de Antigua Guatemala,San Felipe y San Mateo Milpas Altas / Interpretations about emphyteutic census redemption in Guatemala in late Nineteenth Century: The cases of Antigua Guatemala, San Felipe and San Mateo Milpas Altas

    Scientific Electronic Library Online (English)

    Aquiles Omar, Ávila Quijas.

    2012-12-01

    Full Text Available En este artículo se analiza la manera en la que tres ayuntamientos del Departamento de Sacatepéquez, Guatemala (Antigua Guatemala, San Felipe y San Mateo Milpas Altas) interpretaron el decreto de redención de censos enfitéuticos de 1877. El objetivo es demostrar que la significación de la propiedad [...] privada estaba vinculada a la relación comunidad-autoridad y a la cohesión social que se generó a partir de la misma, con lo cual se cuestiona la hipótesis historiográfica de que los ayuntamientos indígenas fueron pauperizados y despojados de sus tierras en el Régimen Liberal. Se hace a través de dos vías de análisis: la primera en términos de lo comunitario y la segunda a través de la acción colectiva y el institucionalismo. Finalmente, se logra ver que fue el ayuntamiento no indígena, Antigua Guatemala, el que más rápidamente se pauperizó, mientras los otros dos lograron mantener la dinámica social y el flujo de ingresos aun cuando privatizaron sus tierras. Abstract in english This article analyses the interpretation that three city councils from the Department of Sacatepéquez, Guatemala (Antigua Guatemala, San Felipe and San Mateo Milpas Altas) made of the emphyteutic census redemption decree from 1877. The objective is to demonstrate that the signification of private pr [...] operty was related to the community-authority relationship and the social cohesion derived from it, which gives the opportunity to question the historiographical hypothesis that underline that indigenous city councils were impoverished and their land stripped during the Liberal Regime. To accomplish this there are traced to analysis ways, the first one is about community and the second one is drawn through collective action and institutionalism. Finally, it can be seen that the non-indigenous city council, Antigua Guatemala, was impoverished sooner, while the other two maintained their social dynamic and the money flow even when their lands were privatize.

  2. Evolving Hazard Monitoring and Communication at San Vicente Volcano, El Salvador

    Science.gov (United States)

    Bowman, L. J.; Gierke, J. S.

    2014-12-01

    El Salvador has 20 potentially active volcanoes, four of which have erupted in the last 100 years. Since San Vicente Volcano has had no historic eruptions, monitoring is not a high priority; especially given the current eruptive crisis at San Miguel Volcano. Though probability of eruptive hazards remains low at San Vicente, it is arguably one of the most hazardous volcanoes in the country due to rainfall-induced landslides and debris-flow risk. At least 250 deaths occurred in November 2009 from landslides and debris flows triggered by Hurricane Ida. This disaster caused the Universidad de El Salvador - Facultad Multidisciplinaria Paracentral (UES-FMP, San Vicente, El Salvador) to partner with governmental and nongovernmental organizations (including the U.S. Peace Corps, U.S. Fulbright Program, Korean International Cooperation Agency, Protección Civil and the Centro de Protección para Desastres (CEPRODE)) to focus its faculty and student research toward hazard monitoring and risk studies. Newly established monitoring efforts include: measurement of surface cracks and localized rainfall by Protección Civil and local residents using crude extensometers and rain gauges; installation of six weather stations that operate within the most at-risk municipalities; seismic refraction surveys to better characterize stratigraphy and seasonal water table changes; and most recently, a USAID/NSF-funded initiative partnered with the UES-FMP to monitor seasonal hydrologic conditions related to flooding and groundwater recharge. The information from these initiatives is now used to communicate current conditions and warnings through a network of two-way radios established by CEPRODE and Protección Civil. Representatives from the multi-institutional team also communicate the data to authorities who make better-informed decisions regarding warnings and evacuations, as well as determine suitable areas for population relocation in the event of a crisis. Data will eventually be used to model and forecast potential hazard events.

  3. Rare Plants - City of San Diego [ds455

    Data.gov (United States)

    California Department of Resources — The Biological Monitoring Plan (BMP; Ogden 1996) for the Multiple Species Conservation Program (MSCP) was developed in 1996 and is a component of the City of San...

  4. Earthquake Damage in San Francisco, CA, April 18, 1906

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 1906 San Francisco earthquake was the largest event (magnitude 8.3) to occur in the conterminous United States in the 20th Century. Recent estimates indicate...

  5. Hunting plan for San Francisco Bay National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This migratory waterfowl hunting plan for Don Edwards San Francisco Bay National Wildlife Refuge allows waterfowl hunting on certain areas of the Refuge. Aerial...

  6. NPP Tropical Forest: San Eusebio, Venezuela, 1970-1971

    Data.gov (United States)

    National Aeronautics and Space Administration — ABSTRACT: Biomass, litterfall,a nd nutrient content of above- and below-ground vegetation and soil for a tropical montane forest at San Eusebio, Venezuela.

  7. Folds--Offshore of San Francisco Map Area, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of DS 781 presents data for folds for the geologic and geomorphic map of the Offshore of San Francisco map area, California. The vector data file is...

  8. Narrative Report : San Francisco Bay NWR Complex : Fiscal Year 1974

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report details the conditions and management of San Francisco Bay National Wildlife Refuge in 1974. The report begins with a general...

  9. Vegetation Mapping - Tecolote Canyon, San Diego Co. [ds656

    Data.gov (United States)

    California Department of Resources — Vegetation mapping has been conducted at various City of San Diego Park and Recreation Open Space lands in support of natural resource management objectives and the...

  10. Backscatter D [7125]--Offshore of San Francisco, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of DS 781 presents data for the acoustic-backscatter map of the Offshore of San Francisco map area, California. Backscatter data are provided as separate...

  11. Microstructure of magnetite doped elastomers investigated by SAXS and SANS

    International Nuclear Information System (INIS)

    Some recent results on the SAXS and SANS investigations of the magnetic elastomers are presented. Samples were obtained by polymerizing dimethylsiloxane with Fe3O4 ferrofluid in a magnetic field and without magnetic field and characterized by XRD, SANS and SAXS. The SAXS maximum at large angles, obtained from magnetic elastomers, was fitted by using a Pseudo-Voigt function. It was found that the Fe3O4 particles lead to a change of the local structure of the elastomer, meaning the decrease of the quasi-crystalline phase and of the microstrains induced in the matrix. The average particle size obtained from SANS measurements agrees well with the average particle size determined by XRD and SAXS analysis. The splitting of the SANS intensity owing to an additional scattering in zero field reflects the existence of magnetic correlations inside the Q region of 0.005 -1

  12. Faults--Offshore of San Francisco Map Area, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of DS 781 presents data for faults for the geologic and geomorphic map of the Offshore San Francisco map area, California. The vector data file is...

  13. San Diego, California 1/3 arc-second DEM

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 1/3-second San Diego, California Elevation Grid provides bathymetric data in ASCII raster format of 1/3-second resolution in geographic coordinates. This grid...

  14. Marine Seismic Reflection Profiles Data of San Francisco Bay Area

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Dataset consists of two-dimensional marine seismic reflection profile data from the San Francisco Bay area. These data were acquired in 1993, with the vessel David...

  15. Seafloor character--Offshore of San Gregorio, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of SIM 3306 presents data for the seafloor-character map (see sheet 5, SIM 3306) of the Offshore of San Gregorio map area, California. The raster data...

  16. Final San Andres National Wildlife Refuge Comprehensive Conservation Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Comprehensive Conservation Plan CCP was written to guide management on San Andres NWR for the next 15 years. This plan outlines the Refuge vision and purpose...

  17. San Francisco Department of Public Health Flu Shot Locations 2013

    Data.gov (United States)

    U.S. Department of Health & Human Services — List of San Francisco Department of Public Health clinics offering flu vaccinations throughout the city in fall 2013.This dataset complies with the emerging Data...

  18. Baseline Surveys - Tecolote Canyon, San Diego Co. [ds655

    Data.gov (United States)

    California Department of Resources — Various resource projects have been conducted in the City of San Diego's Open Space Parks as part of the implementation of the City's Multiple Species Conservation...

  19. San Francisco Bay Conservation and Development Commission : Annual Report 1972

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The Congress passed, and the President signed into law, legislation establishing the San Francisco Bay National Wildlife Refuge. When the purchase of property for...

  20. Faults--Offshore of San Gregorio Map Area, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of SIM 3306 presents data for the faults for the geologic and geomorphic map (see sheet 10, SIM 3306) of the Offshore of San Gregorio map area,...

  1. San Francisco Bay Water Quality Improvement Fund 2015

    Data.gov (United States)

    U.S. Environmental Protection Agency — The San Francisco Bay Water Quality Improvement Fund is a competitive grant program that is helping implement TMDLs to improve water quality, protect wetlands, and...

  2. Bathymetry Hillshade--Offshore of San Francisco, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of DS 781 presents data for the bathymetry and shaded-relief maps of Offshore of San Francisco, California (raster data file is included in...

  3. San Francisco-Pacifica Coast Landslide Susceptibility 2011

    Data.gov (United States)

    California Department of Resources — The San Francisco-Pacifica Coast grid map was extracted from the California Geological Survey Map Sheet 58 that covers the entire state of California and originally...

  4. National Status and Trends: Bioeffects Program - San Francisco Bay Database

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This study was based on the sediment quality triad (SQT) approach. A stratified probabilistic sampling design was utilized to characterize the San Francisco Bay...

  5. San Sebastiani festivali varjutasid hiljutised terroriaktid / Aare Ermel

    Index Scriptorium Estoniae

    Ermel, Aare, 1957-2013

    2001-01-01

    San Sebastiani rahvusvahelisel filmifestivalil sai Suure Kuldse merikarbi tšiillase Orlando Lubberti film "Takso kolmele". Parima režissööri auhinna pälvis Jean-Pierre Ameris realistliku draamaga "C'est la vie". Ka teistest auhinnatutest

  6. Contaminants investigation of the San Antonio River of Texas, 1995

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — In 1992, the U.S. Fish and Wildlife Service conducted a contaminants investigation on fish collected from the San Antonio and Guadalupe Rivers in southeast Texas....

  7. The Trail Inventory of San Pablo Bay NWR [Cycle 3

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The purpose of this report is to create a baseline inventory of all nonmotorized trails on San Pablo Bay National Wildlife Refuge. Trails in this inventory are...

  8. Folds--Offshore of San Gregorio Map Area, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of SIM 3306 presents data for the folds for the geologic and geomorphic map (see sheet 10, SIM 3306) of the Offshore of San Gregorio map area, California....

  9. Marine Seismic Reflection Profiles Data of San Francisco Bay Area

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Dataset consists of two-dimensional marine seismic reflection profile data from the San Francisco Bay area. These data were acquired in 1995, with the vessel Robert...

  10. The Trail Inventory of San Luis NWR [Cycle 2

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The purpose of this report is to create a baseline inventory of all nonmotorized trails on San Luis National Wildlife Refuge. Trails in this inventory are eligible...

  11. Marine Seismic Reflection Profiles Data of San Francisco Bay Area

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Dataset consists of two-dimensional marine seismic reflection profile data from the San Francisco Bay area. These data were acquired in 1997, with the vessel Davidt...

  12. San Pablo Bay National Wildlife Refuge: Final Comprehensive Conservation Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Comprehensive Conservation Plan CCP was written to guide management on San Pablo Bay NWR for the next 15 years. This plan outlines the Refuge vision and...

  13. San Joaquin River National Wildlife Refuge: Final Comprehensive Conservation Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Comprehensive Conservation Plan CCP was written to guide management on San Joaquin River NWR for the next 15 years. This plan outlines the Refuge vision and...

  14. cuencas hidrográficas. Estudio de caso: San Quintín, B.C.

    Directory of Open Access Journals (Sweden)

    Ileana Espejel

    2005-01-01

    Full Text Available The state of Baja California has the greatest municipalities of the country and, therefore, the fewest. New municipalities have begun to be formed recently: Playas de Rosarito in 1995 and, as projects, San Quintín and San Felipe. Traditionally, a municipality is designed according to socioeconomic and, mainly, political reasons. Our proposal puts the ecosistemic unit of a hydrographic basin on a level with a political-administrative unit, that in this case would be the municipality. Today, municipalities make use of hydrographic basins and their natural resources in an ecologically disintegrated fashion. The creation of a new municipality is proposed, that would cover three delegations whose area corresponds to the hydrographic basins of the Sierra de San Pedro Mártir flowing into the Pacific and feeding the agriculture valley of San Quintín. This proposal coincides with today?s agenda of municipal reform

  15. San Francisco Bay, California 1 arc-second DEM

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 1-second San Francisco Bay, California Elevation Grid provides bathymetric data in ASCII raster format of 1-second resolution in geographic coordinates. This...

  16. Rent Affordability Gap by Neighborhood, San Francisco, CA

    Data.gov (United States)

    U.S. Department of Health & Human Services — The data illustrate the number of minimum wage jobs that would be required to afford a two-bedroom rental unit at fair market rent value in San Francisco, as well...

  17. Final Critical Habitat for the San Marcos salamander (Eurycea nana)

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — To provide the user with a general idea of areas where final critical habitat for San Marcos salamander (Eurycea nana) occur based on the description provided in...

  18. Pavonia Argentina (Malvaceae) nuevo registro para la flora de la provincia de San Luis (Argentina) / Pavonia Argentina (Malvaceae) new record for San Luis province flora (Argentina)

    Scientific Electronic Library Online (English)

    María Cecilia, Carosio; María José, Junqueras; Alicia, Andersen; María Cecilia, Fernández Belmonte.

    2010-06-01

    Full Text Available Se cita por primera vez la presencia de Pavonia argentina para la provincia de San Luis, Argentina. [...] Abstract in english It has been detected the presence of Pavonia argentina in San Luis Province, Argentina. [...

  19. San Diego Bay National Wildlife Refuge: Sweetwater Marsh and South San Diego Bay Units: Comprehensive Conservation Plan and Environmental Impact Statement: Volume I

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Comprehensive Conservation Plan CCP was written to guide management on San Diego Bay NWR Sweetwater Marsh and South San Diego Bay Units for the next 15 years....

  20. Concentración de hierro disuelto en la zona del mínimo de oxígeno frente al umbral de San Esteban, golfo de California / Concentration of dissolved iron in the oxygen minimum zone off San Esteban sill, Gulf of California

    Scientific Electronic Library Online (English)

    José Antonio, Segovia-Zavala; Francisco, Delgadillo-Hinojosa; Miguel Ángel, Huerta-Díaz; Albino, Muñoz-Barbosa; Manuel Salvador, Galindo-Bect; José Martín, Hernández-Ayón; Eunise Vanessa, Torres-Delgado.

    2013-06-01

    Full Text Available Se registran concentraciones de hierro disuelto (Fe d) en la zona del mínimo de oxígeno (ZMO) del golfo de California, que se ubicó frente al relieve del umbral de San Esteban y entre el Agua Subsuperficial Subtropical (ASS) y el Agua Intermedia del Pacífico. La concentración promedio de Fe d en la [...] ZMO fue de 3.84 ± 2.48 nM, con un valor mínimo de 1.48 nM y un máximo de 10.02 nM. Estas concentraciones son mayores y están enriquecidas (8:1) en relación con las de la ZMO del océano Pacífico Nororiental Tropical (0.25-1.2 nM), cuyas aguas ingresan al golfo de California mediante el ASS. La resuspensión de sedimentos y aguas ricas en Fe d provocan el incremento de este metal en las estaciones aledañas al umbral de San Esteban. Por otro lado, los valores relativamente menores son producto de la desnitrificación en la zona subóxica en las estaciones más alejadas del umbral de San Esteban. Abstract in english Dissolved iron (Fe d) concentrations are reported for the Gulf of California oxygen minimum zone (OMZ), which was located in front of San Esteban sill, between Subtropical Subsurface Water (SSW) and Pacific Intermediate Water. Mean Fe d concentration in the OMZ was 3.84 ± 2.48 nM, with minimum and m [...] aximum values of 1.48 and 10.02 nM. These concentrations are higher and are enriched in relation to the Tropical Northeast Pacific Ocean OMZ (0.25-1.2 nM), whose waters enter the gulf through SSW. Sediment resuspension and Fe d-enriched waters cause the observed Fe increase at the stations located near San Esteban sill. On the other hand, the relatively lower Fe d concentrations found at the stations farthest from the sill are the result of denitrification in the suboxic zone.

  1. Les architectures des réseaux pour des environnements entierement sans fil

    OpenAIRE

    Schiller, Eryk

    2010-01-01

    Dans ce document, nous avons étudié les nouvelles possibilités de routage et d'adressage dans les réseaux sans-fil multisauts spontanés de grande taille (WMNs). Les WMNs promettent à l'avenir un changement profond de l'architecture d'Internet, mais beaucoup de problèmes restent à résoudre avant leur déploiement. Le routage, par exemple, est simple dans de petits réseaux statiques, mais les réseaux sans fil sont en pratique dynamiques : des liens peuvent apparaître et disparaître, des noeuds r...

  2. San Gregorio mining: general presentation of the enterprise

    International Nuclear Information System (INIS)

    This work is a project presented by San Gregorio Mine.This company is responsible for the extraction and gold ore deposits benefits in San Gregorio and East extension in Minas de Corrales. For this project was carried out an environmental impact study as well as and agreement with the LATU for the laboratory analyzes and the surface and groundwater monitoring within the Environmental program established by the Company

  3. San Martín en el imaginario popular del siglo XIX

    Scientific Electronic Library Online (English)

    Andrea, Greco de Álvarez.

    2012-06-01

    Full Text Available El trabajo se propone detectar la presencia y el recuerdo de San Martín en la sociedad mendocina y en la Confederación. Se hace un breve repaso de los primeros biógrafos y escritores, introduciéndose en el debate acerca de los puntos de contacto o diferencias entre memoria e historia. Por medio de d [...] ocumentos de variada índole se demuestra que tanto la opinión nacional como la internacional tenía en gran consideración al Libertador aún antes del año de su muerte y con mayor razón después de dicha fecha. De tal modo se concluye que: San Martín no era un desconocido ni un personaje olvidado antes de que Mitre escribiera su célebre Historia de San Martín y de la Emancipación Americana, y que era recordado en razón de ser un verdadero héroe, lo cual fue percibido por sus propios contemporáneos que dieron testimonio de ello. Abstract in english This paper aims to detect the presence and the memory of San Martín in Mendoza and in the Confederacy. After a brief review of the work of early biographers and writers, the points of contact or differences between memory and history are discussed. Through documents of various kinds it is shown that [...] both the national and international opinion held San Martín in high regard, even before his death and even more so after that date. Thus, it is concluded that San Martín was not an unknown or forgotten character before Mitre wrote his famous Historia de San Martín y de la emancipación sud-americana, that San Martín was remembered for being a true hero, which was perceived by many of his own contemporaries who witnessed to that.

  4. Recalibrated turbulence profiles at San Pedro Mártir

    Scientific Electronic Library Online (English)

    R., Avila; L. J., Sánchez; I., Cruz-González; E., Carrasco; V. M, Castaño.

    2011-04-01

    Full Text Available La calibración de perfiles de turbulencia óptica medidos con el método SCIDAR generalizado ha sido recientemente revisada y corregida por Avila & Cuevas (2009). Basándonos en ese trabajo, aquí presentamos la corrección de todos los [...] perfiles de medidos con el SCIDAR generalizado en el Observatorio Astronómico Nacional de San Pedro Mártir. El perfil de mediano corregido conserva su estructura vertical general. El cociente promediado en altura de la mediana de los valores de corregidos sobre la mediana de los valores no corregidos es igual a 0.87. La mediana del seeing corregido en el sitio es 0.''68 ± 0."03. 4.2% menor que la mediana no corregida. Las medianas del seeing producido por turbulencia en los dos primeros kilómetros de altura sobre los telescopios de 1.5 m y 2.1 m de diámetro decrecen en un 15.8% y 13.6%, respectivamente. El ángulo isoplanático corregido tiene una mediana de 1."96 ± 0.''04. Abstract in english The calibration of optical turbulence profiles measured with the generalized SCIDAR technique has been recently reviewed and corrected by Avila & Cuevas (2009). Based on that work, here we present the correction of all the [...] er=0 src="../../../../../img/revistas/rmaa/v47n1/a6e1.jpg">profiles measured with a generalized SCIDAR at the Observatorio Astronómico Nacional of San Pedro Mártir. The median corrected profile conserves its overall vertical shape. The altitude-averaged ratio of the corrected median values over the uncorrected ones equals 0.87. The corrected median value of seeing at the site is 0.''68 ± 0."03, 4.2% lower than the median value obtained with the uncorrected profiles. The median values of the seeing produced by turbulence in the first 2 km above the 1.5 m and the 2.1 m telescopes decrease by 15.8% and 13.6%, respectively. The corrected isoplanatic angle has a median value of 1."96 ± 0."04.

  5. 2010 Northern San Francisco Bay Area Lidar: Portions of Alameda, Contra Costa, Marin, Napa, San Francisco, Solano, and Sonoma Counties

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This Light Detection and Ranging (LiDAR) dataset is a survey of northern San Francisco Bay, California. The project area consists of approximately 437 square miles...

  6. Protection Island and San Juan Islands National Wildlife Refuges: Comprehensive Conservation Plan and San Juan Islands Wilderness Stewardship Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Comprehensive Conservation Plan CCP was written to guide management on Protection Island and San Juan Islands NWRs for the next 15 years. This plan outlines...

  7. El derecho de autor en San Luis Potosí; una aproximación / Author's Right in San Luis Potosí; an approach

    Scientific Electronic Library Online (English)

    Agustín, Gutiérrez García; Agustín, Gutiérrez Chiñas.

    2011-08-01

    Full Text Available Se exponen los primeros antecedentes históricos del derecho de autor en el ámbito internacional con orientación a su desarrollo y posterior tratamiento jurídico en México y en San Luis Potosí. [...] Abstract in english It explains the historical early background of the "Author's Law" or "Author's Right" (Copyright Law) on the internatonal scope oriented toward its development and later legal treatment in Mexico and San Luis Potosí. [...

  8. Mercury in San Francisco Bay forage fish

    International Nuclear Information System (INIS)

    In the San Francisco Estuary, management actions including tidal marsh restoration could change fish mercury (Hg) concentrations. From 2005 to 2007, small forage fish were collected and analyzed to identify spatial and interannual variation in biotic methylmercury (MeHg) exposure. The average whole body total Hg concentration was 0.052 ?g g-1 (wet-weight) for 457 composite samples representing 13 fish species. MeHg constituted 94% of total Hg. At a given length, Hg concentrations were higher in nearshore mudflat and wetland species (Clevelandia ios, Menidia audens, and Ilypnus gilberti), compared to species that move offshore (e.g., Atherinops affinis and Lepidogobius lepidus). Gut content analysis indicated similar diets between Atherinops affinis and Menidia audens, when sampled at the same locations. Hg concentrations were higher in sites closest to the Guadalupe River, which drains a watershed impacted by historic Hg mining. Results demonstrate that despite differences among years and fish species, nearshore forage fish exhibit consistent Hg spatial gradients. - Total mercury in estuarine forage fish varies with species, habitat, and proximity to a historic mercury mine.

  9. SYNROC densification: SEM correlation to SANS

    International Nuclear Information System (INIS)

    SYNROC is among the first crystalline waste forms introduced to radioactive waste management as alternative host to glass for disposal in underground repository. Variation of densification parameters obtained from scanning electron microscopy of microstructure and small-angle neutron scattering investigation has been correlated in the present paper. Three specimens of SYNROC were characterized. One was green pellet uniaxially compacted powder, two others were hot-isostatically compacted at 1000? 1000 bar and 1300? 1000 bar 2h dwell time respectively. The compactness was found to increase with sintering. The SEM image of microstructures showed the progress towards densification of the samples. The SANS profile suggested that pores in three widely separated length scales were present in the samples. The average radius of the size distributions at three length scales for the green pellet was 300 nm, 75 nm and 10 nm. These values for the first hot compacted sample, get modified to 126 nm, 73 nm and 20 nm, respectively. For the second hot compacted sample, the average radius of the pore size distributions become as 84 nm, 80 nm and 20 nm. It is evident that the larger diameter pores follow the trend of densification. The bigger pores from SEM imaged microstructures also follow the same trend of densification

  10. Recalibrated turbulence profiles at San Pedro Mártir

    Directory of Open Access Journals (Sweden)

    R. Avila

    2011-01-01

    Full Text Available La calibración de perfiles de turbulencia óptica (C2N medidos con el método SCIDAR generalizado ha sido recientemente revisada y corregida por Avila & Cuevas (2009. Basándonos en ese trabajo, aquí presentamos la corrección de todos los perfiles de C2N medidos con el SCIDAR generalizado en el Observatorio Astronómico Nacional de San Pedro Mártir. El perfil de C2N mediano corregido conserva su estructura vertical general. El cociente promediado en altura de la mediana de los valores de C2N corregidos sobre la mediana de los valores no corregidos es igual a 0.87. La mediana del seeing corregido en el sitio es 0. ?? 68 ± 0. ?? 03, 4.2% menor que la mediana no corregida. Las medianas del seeing producido por turbulencia en los dos primeros kilómetros de altura sobre los telescopios de 1.5 m y 2.1 m de diámetro decrecen en un 15.8% y 13.6%, respectivamente. El ángulo isoplan ático corregido tiene una mediana de 1. ?? 96 ± 0. ?? 04.

  11. The radiological accident in San Salvador

    International Nuclear Information System (INIS)

    In February 1989 a radiological accident occurred in San Salvador at an industrial irradiation facility for sterilizing prepackaged medical products. A movable rack holding a 660 TBq (18 kCi) 60Co source jammed in the exposed position. The operator managed to bypass degraded safety systems and enter the irradiation chamber and, with two helpers, free the rack and lower it manually into the storage pool. The three workers were exposed to very high doses and developed acute radiation syndrome. Initial treatment locally and subsequent more sophisticated treatment in Mexico City was effective in countering the acute effects. However, the legs and feet of two men were so seriously injured that amputation was necessary. Moreover, despite the medical efforts, the most exposed worker died six months after the accident from radiation induced lung damage complicated by a lung injury sustained during treatment. As there are more than 160 industrial irradiation facilities throughout the world, some in countries with little or no infrastructure for radiological protection, an international review was undertaken to document the facts and define lessons for all with safety responsibilities at such facilities. The paper provides a brief summary of the findings of that review. (author). 1 ref., 3 figs

  12. The Rondonian-San Ignacio Province in the SW Amazonian Craton: An overview

    Science.gov (United States)

    Bettencourt, Jorge Silva; Leite, Washington Barbosa; Ruiz, Amarildo Salina; Matos, Ramiro; Payolla, Bruno Leonelo; Tosdal, Richard M.

    2010-01-01

    The Rondonian-San Ignacio Province (1.56-1.30 Ga) is a composite orogen created through successive accretion of arcs, ocean basin closure and final oblique microcontinent-continent collision. The effects of the collision are well preserved mostly in the Paraguá Terrane (Bolivia and Mato Grosso regions) and in the Alto Guaporé Belt and the Rio Negro-Juruena Province (Rondônia region), considering that the province was affected by later collision-related deformation and metamorphism during the Sunsás Orogeny (1.25-1.00 Ga). The Rondonian-San Ignacio Province comprises: (1) the Jauru Terrane (1.78-1.42 Ga) that hosts Paleoproterozoic basement (1.78-1.72 Ga), and the Cachoeirinha (1.56-1.52 Ga) and the Santa Helena (1.48-1.42 Ga) accretionary orogens, both developed in an Andean-type magmatic arc; (2) the Paraguá Terrane (1.74-1.32 Ga) that hosts pre-San Ignacio units (>1640 Ma: Chiquitania Gneiss Complex, San Ignacio Schist Group and Lomas Manechis Granulitic Complex) and the Pensamiento Granitoid Complex (1.37-1.34 Ga) developed in an Andean-type magmatic arc; (3) the Rio Alegre Terrane (1.51-1.38 Ga) that includes units generated in a mid-ocean ridge and an intra-oceanic magmatic arc environments; and (4) the Alto Guaporé Belt (<1.42-1.34 Ga) that hosts units developed in passive marginal basin and intra-oceanic arc settings. The collisional stage (1.34-1.32 Ga) is characterized by deformation, high-grade metamorphism, and partial melting during the metamorphic peak, which affected primarily the Chiquitania Gneiss Complex and Lomas Manechis Granulitic Complex in the Paraguá Terrane, and the Colorado Complex and the Nova Mamoré Metamorphic Suite in the Alto Guaporé Belt. The Paraguá Block is here considered as a crustal fragment probably displaced from its Rio Negro-Juruena crustal counterpart between 1.50 and 1.40 Ga. This period is characterized by extensive A-type and intra-plate granite magmatism represented by the Rio Crespo Intrusive Suite (ca. 1.50 Ga), Santo Antonio Intrusive Suite (1.40-1.36 Ga), and the Teotônio Intrusive Suite (1.38 Ga). Magmatism of these types also occur at the end of the Rondonian-San Ignacio Orogeny, and are represented by the Alto Candeias Intrusive Suite (1.34-1.36 Ga), and the São Lourenço-Caripunas Intrusive Suite (1.31-1.30 Ga). The cratonization of the province occurred between 1.30 and 1.25 Ga.

  13. A history of intertidal flat area in south San Francisco Bay, California: 1858 to 2005

    Science.gov (United States)

    Jaffe, Bruce; Foxgrover, Amy

    2006-01-01

    A key question in salt pond restoration in South San Francisco Bay is whether sediment sinks created by opening ponds will result in the loss of intertidal flats. Analyses of a series of bathymetric surveys of South San Francisco Bay made from 1858 to 2005 reveal changes in intertidal flat area in both space and time that can be used to better understand the pre-restoration system. This analysis also documents baseline conditions of intertidal flats that may be altered by restoration efforts. From 1858 to 2005, intertidal flat area decreased by about 25% from 69.2 +6.4/-7.6 km2 to 51.2 +4.8/-5.8 km2. Intertidal flats in the north tended to decrease in area during the period of this study whereas those south of Dumbarton Bridge were either stable or increased in area. From 1983 to 2005, intertidal flats south of Dumbarton Bridge increased from 17.6 +1.7/-2.5 km2 to 24.2 +1.0/-1.8 km2. Intertidal flats along the east shore of the bay tended to be more erosional and decreased in area while those along the west shore of the bay did not significantly change in area. Loss of intertidal flats occurred intermittently along the eastern shore of the bay north of the Dumbarton Bridge. There was little or no loss from 1931 to 1956 and from 1983 to 2005. Predictions of future change in intertidal flat area that do not account for this spatial and temporal variability are not likely to be accurate. The causes of the spatial and temporal variability in intertidal flat area in South San Francisco Bay are not fully understood, but appear related to energy available to erode sediments, sediment redistribution from north to south in the bay, and sediment available to deposit on the flats. Improved understanding of sediment input to South San Francisco Bay, especially from Central Bay, how it is likely to change in the future, the redistribution of sediment within the bay, and ultimately its effect on intertidal flat area would aid in the management of restoration of South San Francisco Bay salt ponds.

  14. Impulsive radon emanation on a creeping segment of the San Andreas fault, California

    Science.gov (United States)

    King, C.-Y.

    1985-01-01

    Radon emanation was continuously monitored for several months at two locations along a creeping segment of the San Andreas fault in central California. The recorded emanations showed several impulsive increases that lasted as much as five hours with amplitudes considerably larger than meteorologically induced diurnal variations. Some of the radon increases were accompanied or followed by earthquakes or fault-creep events. They were possibly the result of some sudden outbursts of relatively radon-rich ground gas, sometimes triggered by crustal deformation or vibration. ?? 1985 Birkha??user Verlag.

  15. Estimating the Impact of Smoking Cessation During Pregnancy: The San Bernardino County Experience

    OpenAIRE

    Batech, Michael; Tonstad, Serena; Job, Jayakaran S.; Chinnock, Richard; Oshiro, Bryan; Merritt, T. Allen; Page, Gretchen; Singh, Pramil N

    2013-01-01

    We examined the relation between maternal smoking and adverse infant outcomes [low birth weight (LBW), and preterm birth (PTB)] during 2007–2008 in San Bernardino County, California—the largest county in the contiguous United States which has one of the highest rates of infant mortality in California. Using birth certificate data, we identified 1,430 mothers in 2007 and 1,355 in 2008 who smoked during pregnancy. We assessed the effect of never smoking and smoking cessation during pregnancy re...

  16. La política en San Francisco Oxtotilpan / Politics in San Francisco Oxtotilpan

    Scientific Electronic Library Online (English)

    Leif, Korsbaeck.

    2011-04-01

    Full Text Available El siguiente texto analiza el proceso político en San Francisco Oxtotilpan, una comunidad indígena en el Estado de México. Para tal caso, se presenta una breve descripción etnográfica de la comunidad, con los rasgos sociales y culturales más importantes seguida por el examen al sistema de cargos rel [...] igiosos de esta comunidad y su relevancia para el proceso político de la misma, ya que una de las principales diferencias entre la política en el mundo indígena y el mundo mestizo es la intervención de una cosmología religiosa en el proceso político. Abstract in english The following text analyzes the political process in San Francisco Oxtotilpan, an Indian community in the State of Mexico. To this effect, it presents a brief ethnographic description of the community, with its social and the most important cultural characteristics followed by an examination of the [...] system for religious appointments and its relevance to the political process of the community, since one of the principle differences between politics in the Indian world and the cross breed is the intervention of a religious cosmology in the political process.

  17. Estudio geofisico del sector norte de las sierras deSan Luis y de Ulapes: Las Minas, provincia de La Rioja / Geophysical study the northern sector ofSierra de San Luis and Ulapes: Las Minas, province of La Rioja

    Scientific Electronic Library Online (English)

    Gabriela, Ferracutti; José, Kostadinoff; Ernesto, Bjerg.

    2009-06-01

    Full Text Available Un lineamiento de anomalíasgravimétricas relativas de Bouguer positivas (exceso de masa), de 60 km delongitud se extiende, con rumbo NNE, entre la localidad de San Francisco delMonte de Oro en la provincia de San Luis hasta el norte de las sierras deUlapes - Las Minas en la provincia de La Rioja. En [...] dicha faja las anomalíasmagnéticas tienen una magnitud similar a las halladas en los afloramientos deanfibolitas de las sierras de Socoscora, provincia de San Luis. Además, sepresenta otro máximo relativo de gravedad entre Villa General Roca y la sierrade Las Minas, sobre el cual las anomalías magnéticas medidas son débiles (casinulas) en concordancia con los valores de susceptibilidad magnéticadeterminados en los afloramientos de granitos, milonitas y gneises de lassierras de Las Minas, Ulapes y Socoscora. Se determinó una marcada coincidenciaentre una anomalía gravimétrica relativa de Bouguer positiva y una estructura(devónica?) con alteración hidrotermal al NE de la localidad de Ulapes. Abstract in english A 60 km long N-NE alignment of relativepositive Bouguer gravimetric anomalies (mass excess) has been recognizedbetween the locality San Francisco del Monte de Oro in San Luis Province and the northern part of Sierra of Ulapes- Las Minas in La Rioja Province. In this belt the magnetic anomalies havem [...] agnitude similar to those measured on the amphibolite outcrops in the Sierrade Socoscora. Another gravimetric maximum appear between Villa General Roca andSierra de Las Minas, which display weak magnetic anomalies (almost cero) inagreement with the magnetic susceptibility values obtained on granites, milonitesand gneissic outcrops from Sierras of Las Minas, Ulapes and Socoscora. There isan excellent correlationship between the relative positive Bouguer gravimetricanomaly in the NE of Ulapes locality and a known (Devonic?) structure withassociated hydrothermal alteration.

  18. Abundancia y distribución de las especies ícticas (Osteichthyes del río San Francisco-Cosquín, Córdoba, Argentina Abundance and distribution of fish species (Osteichthyes from San Francisco - Cosquín river in Córdoba, Argentina

    Directory of Open Access Journals (Sweden)

    Andrea Cecilia Hued

    Full Text Available It was made the characterization of the San Francisco-Cosquín Mountain River fish community, Córdoba, Argentina. Samples of fish were taken from selected sites from November 1998 to November 1999. Eleven species were recorded, eight of which are first reports for this river. Relative abundance for each species, species richness, diversity and dominance were estimated. Bryconamericus iheringi (Boulenger, 1887 y Jenynsia multidentata (Jenyns, 1842 were the most abundant.

  19. Contaminants of antropic origin in groundwater San Juan (Argentina). Vulnerability and hydro chemical indicators; Contaminantes de origen antropico en aguas subterraneas San Juan (Argentina)

    Energy Technology Data Exchange (ETDEWEB)

    Fiore, J. M.; Castro, A.; Medici, M. E.; Gimenez, M.; Suero, E.; Turcuman, M. H.

    2002-07-01

    The Tulum Valley aquifer vulnerability and its correlation with the behavior of hydro chemical parameters related to new urban neighborhoods and uncontrolled waste disposal are discussed. A high vulnerability to contamination by substances solved in the recharge water at the San Juan river shore is estimated. A fast transport rate due to the high permeability is foreseen, as well as the existence of contamination sources related to waste disposals and populations without a sewer system. The results show that the mentioned populations and waste disposal sites are located at vulnerable zones of the area. A higher concentration of nitrates and nitrites is observed at the Southeast, due to the short permanency period of the water in the system, and to the reconcentration in zones with less permeable levels. (Author) 19 refs.

  20. 77 FR 74458 - Enterysys Corporation, with Last Known Addresses of: 1307 Muench Court, San Jose, CA 95131 and...

    Science.gov (United States)

    2012-12-14

    ...Enterysys Corporation, of San Jose, California and Secunderabad...1307 Muench Court, San Jose, California 95131, and Plot No...1307 Muench Court, San Jose, CA 95131, (FEDEX...2012, Alameda, California. Cindy J....

  1. 78 FR 40691 - Foreign-Trade Zone 18-San Jose, California; Application for Reorganization (Expansion of Service...

    Science.gov (United States)

    2013-07-08

    ...Foreign-Trade Zone 18--San Jose, California; Application for Reorganization...FTZ) Board by the City of San Jose, grantee of Foreign-Trade...service area that includes all of San Jose, California. The applicant is now...

  2. 76 FR 31954 - San Jose Water Company; Notice of Declaration of Intention and Soliciting Comments, Protests, and...

    Science.gov (United States)

    2011-06-02

    ...2011. d. Applicant: San Jose Water Company. e. Name of Project...Reducing Valves, in the town of San Jose, Santa Clara County, California. g. Filed Pursuant to: Section...Victorine, Director of Operations, San Jose Water Company, 110 W....

  3. 40 CFR 180.1108 - Delta endotoxin of Bacillus thuringiensis variety San Diego encapsulated into killed Pseudomonas...

    Science.gov (United States)

    2010-07-01

    ...endotoxin of Bacillus thuringiensis variety San Diego encapsulated into...PESTICIDE CHEMICAL RESIDUES IN FOOD Exemptions From Tolerances...of Bacillus thuringiensis variety San Diego encapsulated into...of Bacillus thuringiensis variety San Diego encapsulated...

  4. 75 FR 34481 - Notice of Reestablishment of the Santa Rosa and San Jacinto Mountains National Monument Advisory...

    Science.gov (United States)

    2010-06-17

    ...Notice of Reestablishment of the Santa Rosa and San Jacinto Mountains National Monument...reestablished the charter of the Santa Rosa and San Jacinto Mountains National Monument...preparation and implementation of the Santa Rosa and San Jacinto National Monument...

  5. FINANCING COMMUNITY FACILITIES: A STUDY OF THE PARKS AND RECREATIONAL GENERAL OBLIGATION BOND MEASURE OF SAN JOSE, CALIFORNIA

    OpenAIRE

    Mathur, Shishir

    2009-01-01

    This study of the City of San Jose’s Parks and Recreation General Obligation (GO) Bond Measure seeks to identify the politics-, management-, and planning-related lessons learned by the City as it developed its community facilities using the GO bonds proceeds. The study finds that these lessons include: be conservative in what you promise the residents; be prepared for changes in economic environment by identifying supplementary funding sources should the primary source not yield adequate fun...

  6. Frictional strength heterogeneity and surface heat flow: Implications for the strength of the creeping San Andreas fault

    Science.gov (United States)

    d'Alessio, M. A.; Williams, C.F.; Burgmann, R.

    2006-01-01

    Heat flow measurements along much of the San Andreas fault (SAF) constrain the apparent coefficient of friction (??app) of the fault to 0.2 should be detectable even with the sparse existing observations, implying that ??app for the creeping section is as low as the surrounding SAF. Because the creeping section does not slip in large earthquakes, the mechanism controlling its weakness is not related to dynamic processes resulting from high slip rate earthquake ruptures. Copyright 2006 by the American Geophysical Union.

  7. Improving default rates in Ambulatory Therapeutic Feeding Programmes in operations by Médecins sans Frontières Operational Centre Amsterdam

    OpenAIRE

    van der Velden, E.

    2008-01-01

    Severe Acute Malnutrition is a serious medical condition prevalent in many areas with chronic or acute conflict. Organisations providing emergency relief in disaster-struck areas, such as Médecins sans Frontières-Operational Centre Amsterdam (MSF-OCA), have established feeding programmes in many of these countries. Since a predominantly centre-based treatment mode was replaced by an ambulatory treatment approach some of the programmes have been subject to relatively high defaulter rates. Defa...

  8. Producción de flores en la agricultura urbana de San José de las Lajas, Cuba / Flowers production in the urban agriculture of San José de las Lajas, Cuba

    Scientific Electronic Library Online (English)

    Ania, Yong Chou; Eduardo, Calves Somoza; Zoilo, Terán Vidal; Antoliano, Ramírez Medina; Ángel, Leyva Galán; María I, Pavón Rosales.

    2014-09-01

    Full Text Available El creciente aumento en el consumo de flores en el municipio San José de las Lajas ha provocado que se incluyan nuevas especies de flores de corte en los sistemas agrícolas, y con ello nuevas tecnologías de manejo. La capacitación in situ de los agricultores, facilitada por investigadores y por prod [...] uctores con mayor experiencia en este renglón productivo, fue llevada a cabo a través de talleres participativos y visitas de intercambio. Se consiguió incrementar la diversidad en tres especies (clavel chino, rosa y nardo) y se identificaron seis experimentos diseñados y conducidos por los productores y relacionados con la introducción de especies de flores, asociaciones y rotaciones, arreglos espaciales y conservación de semilla Abstract in english The growing increase in the consumption of flowers in the municipality San José de las Lajas has caused that new species of court flowers are included in the agricultural systems, and with it new handling technologies. The training in the farmers’ situ, facilitated by investigators and for producing [...] with more experience in this productive line, it was carried out through shops participatory and exchange visits. It was possible to increase the diversity in three species (chinese carnation, rose and nard) and six designed experiments were identified and driven by the producers and related with the introduction of species of flowers, associations and rotations, space arrangements and seed conservation

  9. embalse San Miguel Arco, Estado de México

    Directory of Open Access Journals (Sweden)

    N. A. Navarrete-Salgado

    2007-01-01

    Full Text Available Este estudio considera el crecimiento, reproducción y supervivencia de Girardinichthys multiradiatus en el embalse San Miguel Arco, Estado de México, durante el periodo de diciembre de 2004 a octubre de 2005. Se establecieron tres estaciones de muestreo en la parte litoral del embalse y en cada una se estimaron algunos parámetros ambientales de tipo físico y químico tales como profundidad, transparencia, temperatura, oxígeno, pH, conductividad, dureza y alcalinidad; mismos que presentaron fluctuaciones moderadas a lo largo del periodo de estudio. Los peces fueron capturados utilizando un chinchorro charalero. Se registraron cuatro clases de talla. De los 627 especímenes, 236 fueron hembras y 327 machos. La mayor longitud promedio se registró en primavera (5.8 cm y la menor en verano (2.25 cm. La longitud máxima fue mayor en primavera (7.27 cm y menor en verano (4.64 cm. El crecimiento en longitud fue mayor en primavera (-0.057 y menor en verano (-0.1928. El crecimiento en peso fue mayor en invierno (5.009 y menor en verano (1.6444. El factor de condición fue mayor en primavera (0.074 y menor en invierno (0.011. La talla mínima de reproducción se presentó en una hembra de 2.3 cm en primavera y en un macho de 1.7 cm en otoño. El mayor número de embriones fue de 87 en una hembra de 4.65 cm. La mayor supervivencia se registró en invierno (16 % y la menor en primavera (0.2 %. Se concluye que las tasas biológicas registradas, están influidas por el ambiente físico prevaleciente en el que habita esta especie.

  10. y religion bautista en San Andrés Isla

    Directory of Open Access Journals (Sweden)

    Natalia Guevara

    2006-01-01

    Full Text Available El presente artículo aborda de manera general los nexos de los pastores y la religión bautista con el movimiento autonomista raizal de la isla de San Andrés. El documento brinda un panorama breve sobre la relación del Estado colombiano con el Archipiélago, la cual incluyó la censura a la lengua inglesa y criolla y a la religión protestante. Así, el artículo establece los orígenes de la participación de las iglesias bautistas en las reivindicaciones a favor de la identidad isleña en la resistencia de los pastores y los fieles protestantes ante las políticas integracionistas nacionales que surgían en el marco de la nación monocultural proclamada en la constitución de 1886. Si bien, a partir de la década de 1960 la resistencia raizal se manifestó en diversos movimientos de carácter secular, a finales de la década de 1990 los pastores retomaron el liderazgo en las demandas por la defensa de la identidad isleña mediante un discurso religioso que se entremezcla con lo político tanto en el espacio de la iglesia como en manifestaciones públicas realizadas en la isla. El artículo propone que el papel de los pastores en el movimiento raizal puede ser comprendido, por una parte, mediante la tradición antiesclavista de la religión bautista a lo largo del Caribe anglófono y, por otra, por la influencia de la iglesia en la vida social isleña como un indicador de respetabilidad, lo cual le permite convocar a la comunidad y ampliar el alcance de las demandas autonomistas del movimiento raizal. Finalmente, el documento plantea que el papel de los pastores como mediadores se enmarca dentro de una tradición más amplia de resolución pacífica del conflicto, expresada en el Caribe mediante la polirritmia, la cual permite la coexistencia de diversas tendencias que no se excluyen mutuamente.

  11. Déficit hídrico en San Antonio Oeste, Argentina

    Directory of Open Access Journals (Sweden)

    Gerardo M.E. Perillo

    2010-08-01

    Full Text Available Se calcularon los componentes del balance hídrico en San Antonio Oeste (SAO, Argentina. SAO se localiza en el sector Nororiental de la Patagonia, en una zona semiárida de escasa productividad agropecuaria como consecuencia del elevado déficit anual y la insuficiencia del drenaje superficial. El objetivo principal de este trabajo es evaluar el déficit en SAO a partir de metodologías adaptadas a las condiciones de sitio. Para ello se realizaron balances hídricos climáticos normales y secuenciales de acuerdo con Thornthwaite y Matter (1955 en base a datos pertenecientes a la estación SAO del Servicio Meteorológico Nacional. Se seleccionó y calibró el método de estimación de la evapotranspiración potencial más adecuado, mediante una comparación entre cuatro métodos empíricos y FAO Penman-Monteith. Para la caracterización de las condiciones edáficas del terreno se realizó un análisis de textura del suelo y contenido de materia orgánica en tres sitios representativos próximos a la estación SAO. El método de evapotranspiración potencial de Christiansen presentó la mayor correlación (r2=0,994 cuyo error relativo medio es 1,1 y 24,2 % en verano e invierno, respectivamente. Las interrelaciones entre las variables precipitación y evapotranspiración potencial en los balances hídricos normales señalaron volúmenes anuales deficitarios en todos los períodos de análisis (1961-2000 del orden de los 1170 mm. Estos volúmenes ocurren principalmente durante los meses de septiembre a marzo, concentrando más del 80 % del total anual. El período que mostró mayor déficit es el 1971-1980 (1258 mm/año. En contraposición, en los decenios 1981-1990 y 1991-2000 los valores de déficit fueron moderadamente inferiores (approx. 12 % al citado período. Los aportes metodológicos y resultados obtenidos deben ser considerados en las políticas de planificación y manejo del riego, máxime en un contexto económico de creciente diversificación productiva.

  12. Performance improvement of multilayered neutron monochrometer for KUR-SANS

    International Nuclear Information System (INIS)

    Small angle neutron scattering (SANS) experiments have been used widely to investigate the structure of the size of 1-100 nm such as the living body molecules. The collimated beam with comparatively large cross section and wave length resolution of about 20% is necessary in high strength for the SANS in the nuclear reactor neutron source. The multilayered neutron monochromator is compact and with no performance deterioration due to the breakdown of mechanical movable part. Then, the multilayered neutron monochromator has been used in KUR-SANS. In the SANS experiment, necessary neutron wave length is different depending on the size of the sample. In this research, the wave length resolution of 20% was requested at the vicinity of the peak of the neutron spectrum in consideration of efficiently using neutron and increasing the variation of the neutron wave length in the SANS experiment. Multilayered neutron monochromator was developed using ion beam spattering method, and the performance was evaluated as the highest level in the world. Reflectivity of the first Bragg peak showed 0.81 with peak reflectivity 0.86 and reflectivity by the second Bragg conditions to obstruct making of the neutron monochrome was suppressed to 5.0 x 10-3 or less, and can be suppressed to 3.0 x 10-5 or less by uniting the reflection type monochromator twice. About 4.4 times strength were obtained with the monochromator. (T.Tanaka)

  13. Villa San Michele at Capri – a House with a distinct home for "Genius Loci"

    DEFF Research Database (Denmark)

    Fisker, Anna Marie; Danielsen, Mads Harder

    2015-01-01

    To address the relationship between House & Home from a theoretical perspective we set out on an journey towards Southern Europe; seeking answers to how a fellow Scandinavian here constructed a house, that was built of "Roba di Tiberio" - columns, capitals, fragments of statues - that was dug up on the spot. When we approached Capri by crossing the Neapolitan bay the first thing our eyes saw was the chapel of San Michele resting high above the blue waters at the top of the steep cliffs - on the edge of the abyss. This place is also the location of the Egyptian Sphinx, half lion, half woman; in a transient moment of clarity we had seen her face in our dreams. Capri was the place where eccentrics and wealthy fantasists could exorcize their demons: Goethe, Rilke and Nietzsche loved Capri. The island described by the Scandinavian poet Hans Christian Andersen visiting the Blue Grotta, the personal swimming hole of the Roman emperor Tiberius, as a “Fairy World”, was also the stupendous home of Axel Munthe. At Villa San Michele, entering through the beautiful loggias and the long row of arcades to the chapel that Munthe also restored, our eyes first felt the enigma of the spirit of the place - we wanted to know what happened. When Tiberius lived in his home on the island, the sphinx was already 1000 years old. Now the fantasy creature is on the last outpost of Munthe’s Villa San Michele where it lays majestic, at home, as the guardian spirit of the place – genius loci. It is our thesis that the spirit of the place adjoins a metaphysical core of architecture; and as the very core of architecture could be connected to an absolute truth so it seems that genius loci is related to truth; even though it is a truth that is not directly visible. We ask in this paper if it is a truth that is perennially present? And furthermore with which eyes are we to see this truth? Nietzsche was concerned with truth and the eyes that recognize truth: “There are various eyes. Even the Sphinx has eyes: and as a result there are various truths, and as a result there is no truth.” Let us enhance with the gaze of the Sphinx. For Nietzsche, the Sphinx becomes not the symbol of truth but of “truth”. The will to truth tempts us to many a hazardous enterprise. It is, says Nietzsche, the Sphinx who asks us questionable questions. That day at Villa San Michele we felt the enigma of the spirit of the place, but if we are going to hear the Sphinx ask us questions, all these riddling puzzles, we first have to ask the Sphinx to know how to ask questions. That genius loci are present in architectural theory owes much to the Scandinavian theoretician and architect Christian Norberg-Schulz, who emphasized considerations to the specific characteristics and atmosphere of a place. Is the atmosphere of Villa San Michele thus the key word in the understanding of the physical and metaphysical levels and layers of architectural language in this home of archaeological origin? We focus in our paper with these theoretical views on Villa San Michele through an architectural lens and perspective within the frames of House&Home on the language of architecture, and ask; can we explain the language of genius loci in Villa San Michele? Can we hereby clearly see how Axel Munthe - who was not an architect – could build a house at the very core of architecture and create a home caught between reality and dream?

  14. Using topography to decipher the uplift history of the western San Gabriel Mountains, CA

    Science.gov (United States)

    Dibiase, R. A.; Whipple, K. X.; Heimsath, A. M.

    2010-12-01

    Transient landscapes serve an important role in tectonic geomorphology, both by echoing the temporal changes of driving climatic or tectonic forces, and by providing field settings to discriminate among different surface process models that behave similarly under steady-state conditions. Here we investigate the surface expression of a two-staged transient signal in the 300 km2 Big Tujunga river basin in the western San Gabriel Mountains using a combination of DEM analysis, detailed field surveys of stream channels, and a rich erosion rate dataset. The upper (earlier) transient in the Big Tujunga catchment has nearly propagated through the entire fluvial network, with only isolated patches of an elevated low-relief weathering surface remaining. The lower transient, however, is characterized by a dramatic inner gorge with over-steepened valley walls and fluvial hanging valleys. In both cases, an increase in the rate of local base-level fall resulted in the propagation of a wave of incision upstream through the landscape, with discrete knickpoints separating adjusting from relict portions of the landscape. We use a 10 m digital elevation model to extract channel long profiles and hillslope angles in order to determine knickpoint elevations. Concordance in knickpoint elevations allows the estimation of the timing of the onset of the transient using a relationship between channel steepness and erosion rate (derived from detrital cosmogenic 10Be concentrations) developed for the region. We find the age of the upper transient to be ca. 6 Ma, which corresponds to the initiation of uplift in the San Gabriel Mountains associated with the transfer of slip from the San Gabriel Fault to the current trace of the San Andreas Fault. The younger transient dates to ca. 2 Ma, which overlaps with estimates of activation of the San Jacinto Fault Zone, whose inception has been linked to increases in rock uplift rate in both the eastern San Gabriel Mountains and in the nearby San Bernardino Mountains. The lower Big Tujunga transient also affords us the opportunity to investigate the nature of bedrock channel response to temporal forcing in a relatively homogenous lithology (massive crystalline rocks). Supplementing detailed field surveys with 160 km2 of airborne lidar-derived topography (1 m resolution), we mapped channel width, valley width, and the extent of bedrock steps greater than 3 m throughout the channel network. We also mapped the extent of bedrock exposure in 20 km of channels both above and below the main knickpoint. We find, as shown in other landscapes, that channels respond to the transient signal by narrowing and steepening. Additionally, much of the increase in slope (up to 60 percent) tends to be in the form of discrete bedrock steps separating channel reaches that maintain slopes just necessary to transport available sediment. The prevalence of large bedrock steps, as well as the preservation of a continuous strath terrace 60 m above the current channel profile in the lower Big Tujunga strongly contrasts the channel morphology upstream, suggesting that the style, in addition to the pace, of base level fall has changed in the past 2 Ma.

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

    International Nuclear Information System (INIS)

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

  16. Population density, biomass, and age-class structure of the invasive clam Corbicula fluminea in rivers of the lower San Joaquin River watershed, California

    Science.gov (United States)

    Brown, L.R.; Thompson, J.K.; Higgins, K.; Lucas, L.V.

    2007-01-01

    Corbicula fluminea is well known as an invasive filter-feeding freshwater bivalve with a variety of effects on ecosystem processes. However. C. fluminea has been relatively unstudied in the rivers of the western United States. In June 2003, we sampled C. fluminea at 16 sites in the San Joaquin River watershed of California, which was invaded by C. fluminea in the 1940s. Corbicula fluminea was common in 2 tributaries to the San Joaquin River, reaching densities of 200 clams??m-2, but was rare in the San Joaquin River. Biomass followed a similar pattern. Clams of the same age were shorter in the San Joaquin River than in the tributaries. Distribution of clams was different in the 2 tributaries, but the causes of the difference are unknown. The low density and biomass of clams in the San Joaquin River was likely due to stressful habitat or to water quality, because food was abundant. The success of C. fluminea invasions and subsequent effects on trophic processes likely depends on multiple factors. As C. fluminea continues to expand its range around the world, questions regarding invasion success and effects on ecosystems will become important in a wide array of environmental settings.

  17. 77 FR 66462 - Proposed CERCLA Settlement Relating to the Digital Equipment Corp. Site a/k/a the PCB Horizon...

    Science.gov (United States)

    2012-11-05

    ...Settlement Relating to the Digital Equipment Corp. Site a/k/a the PCB Horizon Site in San German, PR AGENCY: Environmental Protection...with the Digital Equipment Corp. Superfund Site, a/k/a the PCB Horizon Site (``Site''), located in San German,...

  18. Analyses of creep pores in liquid-phase-sintered alumina by means of joint use of conventional and high-resolution SANS

    International Nuclear Information System (INIS)

    Failure of ceramic materials for high-temperature applications is initiated by the formation of creep pores. Thus, the determination of the sizes and number densities of pores induced during creep testing is one key to an understanding of their failure mechanisms and related life-time predictions. For this purpose small-angle neutron scattering (SANS) techniques are one of the most potential tools as demonstrated by an analysis of creep pores in liquid-phase-sintered, hot isostatically pressed alumina. The exploration of creep induced pores requires the analysis of SANS intensity over an extremely extended region of scattering vectors, the scanning of which needs joint use of both conventional SANS and double crystal diffractometry (DCD), an ultra small angle scattering technique

  19. News Palynology data of the basal section of Formacion San Gregorio located in Paso de las Bochas (I lower permian north basin, Uruguay

    International Nuclear Information System (INIS)

    Samples from outcrops and concretions of the locality of Paso de las Bochas on the Negro River, provided new palynologycal data to the basal section of the San Gregorio Formation. At least 10 new ta xa are added for San Gregorio concretions, and some of the cited palynomorphs are mentioned for the first time for Uruguay (Rattiganispora minor, Waltzispora pol ita). Moreover, some of the found ta xa have been mentioned for glacial deposits related to the Carboniferous-Permian boundary in other Gondwana regions (p.e. Psomospora detect a, Waltzispora pol ita). The preliminary results reached here allow to admit the hypothesis of the existence of carboniferous dee posits on the Uruguayan territory whose were eroded or not yet recognized. Keywords: San Gregorio Formation, Carboniferous

  20. Summary of the geology of the San Luis Basin, Colorado-New Mexico with emphasis on the geothermal potential for the Monte Vista Graben. Special Publication 17

    Energy Technology Data Exchange (ETDEWEB)

    Burroughs, R.L.

    1981-01-01

    The known geologic data of the San Luis Basin are reviewed and related to an understanding of the hydrogeothermal potential of the Alamosa-Monte Vista area. The physiographic setting of the region, the structural framework of the basin, and its influence on the stratigraphic makeup of the rock sequence, which in turn control the occurrence of potential deep water reservoirs, are reviewed. It is suggested that the San Luis Basin was well-developed by Miocene time, and that although the basin was modified by Neogene faulting, it is essentially a late Laramide event having been produced during the Paleogene. Attention is also given to high heat flow along the Rio Grande Rift and to the geothermal gradient of the San Luis Basin. The confined aquifer is then considered in respect to its hydrogeology, water quality, and as to the legal aspects of the system. (LEW)

  1. 77 FR 21092 - San Jose Water Company; Notice of Application Accepted for Filing and Soliciting Comments...

    Science.gov (United States)

    2012-04-09

    ...proposed Hostetter Modernization Project would be located on the City of San Jose's municipal raw water line in the Town of San Jose, County of Santa Clara, California. g. Filed Pursuant to: Federal Power Act 16 U.S.C....

  2. 75 FR 11939 - Integrated Silicon Solution, Inc. (ISSI); San Jose, CA; Notice of Termination of Investigation

    Science.gov (United States)

    2010-03-12

    ...253] Integrated Silicon Solution, Inc. (ISSI); San Jose, CA; Notice of Termination of Investigation Pursuant...of workers at Integrated Silicon Solution, Inc., San Jose, California. The petitioner has requested that the petition...

  3. Final Environmental Statement : Acquisition of lands for the San Francisco Bay National Wildlife Refuge California

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The Federal Government proposes to acquire approximately 23,000 acres of land in the South San Francisco Bay region, Alameda, San Mateo and Santa Clara Counties, to...

  4. 75 FR 11194 - San Diego County Water Authority Natural Communities Conservation Program/Habitat Conservation...

    Science.gov (United States)

    2010-03-10

    ...80221-1112-0000-F2] San Diego County Water Authority Natural Communities Conservation Program/Habitat Conservation...the San Diego County Water Authority's (Water Authority/Applicant) draft Natural Communities Conservation Plan...

  5. Don Edwards San Francisco Bay National Wildlife Refuge: Annual Narrative Report: Calendar Year 2000

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Don Edwards San Francisco Bay NWR, Antioch Dunes NWR, Farallon NWR, San Pablo Bay NWR, Ellicot Slough NWR, Salinas River NWR, and...

  6. 33 CFR 334.1010 - San Francisco Bay in vicinity of Hunters Point; naval restricted area.

    Science.gov (United States)

    2010-07-01

    ... false San Francisco Bay in vicinity of Hunters Point; naval restricted area. 334.1010 Section...DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.1010 San Francisco Bay in vicinity of Hunters Point; naval restricted area. (a) The...

  7. San Francisco Bay National Wildlife Refuge: Annual Narrative Report: Calendar Year 1987

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for San Francisco Bay NWR, San Pablo Bay NWR, Antioch Dunes NWR, Farallon NWR, and Ellicott Slough NWR outlines Refuge accomplishments...

  8. 76 FR 37044 - Revisions to the California State Implementation Plan, San Joaquin Valley Unified Air Pollution...

    Science.gov (United States)

    2011-06-24

    ...Plan, San Joaquin Valley Unified Air Pollution Control District AGENCY: Environmental...the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD...52 Environmental protection, Air pollution control, Intergovernmental...

  9. 76 FR 56706 - Revisions to the California State Implementation Plan, San Joaquin Valley Unified Air Pollution...

    Science.gov (United States)

    2011-09-14

    ...Plan, San Joaquin Valley Unified Air Pollution Control District AGENCY: Environmental...the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD...52 Environmental protection, Air pollution control, Intergovernmental...

  10. 77 FR 24883 - Revisions to the California State Implementation Plan, San Joaquin Valley Unified Air Pollution...

    Science.gov (United States)

    2012-04-26

    ...Plan, San Joaquin Valley Unified Air Pollution Control District AGENCY: Environmental...the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD...52 Environmental protection, Air pollution control, Intergovernmental...

  11. 77 FR 66429 - Revisions to the California State Implementation Plan, San Joaquin Valley Unified Air Pollution...

    Science.gov (United States)

    2012-11-05

    ...Plan, San Joaquin Valley Unified Air Pollution Control District AGENCY: Environmental...the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD...52 Environmental protection, Air pollution control, Incorporation by...

  12. 77 FR 50021 - Revisions to the California State Implementation Plan, San Joaquin Valley Unified Air Pollution...

    Science.gov (United States)

    2012-08-20

    ...Plan, San Joaquin Valley Unified Air Pollution Control District AGENCY: Environmental...of San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD...tailored to the nature of the air pollution sources in each state. The...

  13. 75 FR 57862 - Revisions to the California State Implementation Plan, San Joaquin Valley Unified Air Pollution...

    Science.gov (United States)

    2010-09-23

    ...Plan, San Joaquin Valley Unified Air Pollution Control District AGENCY: Environmental...the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD...52 Environmental protection, Air pollution control, Incorporation by...

  14. 76 FR 52623 - Revisions to the California State Implementation Plan, San Joaquin Valley Unified Air Pollution...

    Science.gov (United States)

    2011-08-23

    ...Plan, San Joaquin Valley Unified Air Pollution Control District AGENCY: Environmental...the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD...52 Environmental protection, Air pollution control, Intergovernmental...

  15. San Francisco Bay National Wildlife Refuge Complex: Annual Narrative Report: Calendar Year 1989

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for San Francisco Bay NWR, San Pablo Bay NWR, Antioch Dunes NWR, Farallon NWR, Ellicott Slough NWR, and Salinas River NWR outlines...

  16. 33 CFR 165.1121 - Security Zone: Fleet Supply Center Industrial Pier, San Diego, CA.

    Science.gov (United States)

    2010-07-01

    ...2010-07-01 false Security Zone: Fleet Supply Center Industrial Pier, San Diego...District § 165.1121 Security Zone: Fleet Supply Center Industrial Pier, San Diego...following area is a security zone: the...

  17. 76 FR 1521 - Security Zone: Fleet Industrial Supply Center Pier, San Diego, CA

    Science.gov (United States)

    2011-01-11

    ...USCG-2010-0423] RIN 1625-AA87 Security Zone: Fleet Industrial Supply Center Pier, San Diego...San Diego, CA. The existing security zone is around the former Fleet Industrial Supply Center Pier. The security zone encompasses all...

  18. 76 FR 40660 - Revisions to the California State Implementation Plan, San Joaquin Valley Air Pollution Control...

    Science.gov (United States)

    2011-07-11

    ...Implementation Plan, San Joaquin Valley Air Pollution Control District (SJVUAPCD...revisions to the San Joaquin Valley Air Pollution Control District (SJVUAPCD...0 for the following terms: Air Pollution Control Officer, Board,...

  19. A summary of the San Francisco tidal wetlands restoration series

    Directory of Open Access Journals (Sweden)

    Larry R. Brown

    2003-10-01

    Full Text Available The four topical articles of the Tidal Wetlands Restoration Series summarized and synthesized much of what is known about tidal wetlands and tidal wetland restoration in the San Francisco Estuary (hereafter ?Estuary?. Despite a substantial amount of available information, major uncertainties remain. A major uncertainty with regard to fishes is the net benefit of restored tidal wetlands relative to other habitats for native fishes in different regions of the Estuary given the presence of numerous invasive alien species. With regard to organic carbon, a major uncertainty is the net benefit of land use change given uncertainty about the quantity and quality of different forms of organic carbon resulting from different land uses. A major challenge is determining the flux of organic carbon from open systems like tidal wetlands. Converting present land uses to tidal wetlands will almost certainly result in increased methylation of mercury at the local scale with associated accumulation of mercury within local food webs. However, it is unclear if such local accumulation is of concern for fish, wildlife or humans at the local scale or if cumulative effects at the regional scale will emerge. Based on available information it is expected that restored tidal wetlands will remain stable once constructed; however, there is uncertainty associated with the available data regarding the balance of sediment accretion, sea-level rise, and sediment erosion. There is also uncertainty regarding the cumulative effect of many tidal restoration projects on sediment supply. The conclusions of the articles highlight the need to adopt a regional and multidisciplinary approach to tidal wetland restoration in the Estuary. The Science Program of the CALFED effort provides an appropriate venue for addressing these issues.

  20. Meteorologically Driven Simulations of Dengue Epidemics in San Juan, PR.

    Science.gov (United States)

    Morin, Cory W; Monaghan, Andrew J; Hayden, Mary H; Barrera, Roberto; Ernst, Kacey

    2015-08-01

    Meteorological factors influence dengue virus ecology by modulating vector mosquito population dynamics, viral replication, and transmission. Dynamic modeling techniques can be used to examine how interactions among meteorological variables, vectors and the dengue virus influence transmission. We developed a dengue fever simulation model by coupling a dynamic simulation model for Aedes aegypti, the primary mosquito vector for dengue, with a basic epidemiological Susceptible-Exposed-Infectious-Recovered (SEIR) model. Employing a Monte Carlo approach, we simulated dengue transmission during the period of 2010-2013 in San Juan, PR, where dengue fever is endemic. The results of 9600 simulations using varied model parameters were evaluated by statistical comparison (r2) with surveillance data of dengue cases reported to the Centers for Disease Control and Prevention. To identify the most influential parameters associated with dengue virus transmission for each period the top 1% of best-fit model simulations were retained and compared. Using the top simulations, dengue cases were simulated well for 2010 (r2 = 0.90, p = 0.03), 2011 (r2 = 0.83, p = 0.05), and 2012 (r2 = 0.94, p = 0.01); however, simulations were weaker for 2013 (r2 = 0.25, p = 0.25) and the entire four-year period (r2 = 0.44, p = 0.002). Analysis of parameter values from retained simulations revealed that rain dependent container habitats were more prevalent in best-fitting simulations during the wetter 2010 and 2011 years, while human managed (i.e. manually filled) container habitats were more prevalent in best-fitting simulations during the drier 2012 and 2013 years. The simulations further indicate that rainfall strongly modulates the timing of dengue (e.g., epidemics occurred earlier during rainy years) while temperature modulates the annual number of dengue fever cases. Our results suggest that meteorological factors have a time-variable influence on dengue transmission relative to other important environmental and human factors. PMID:26275146

  1. Solar energy system performance evaluation-seasonal report for Elcam San Diego, San Diego, California

    Science.gov (United States)

    1980-01-01

    The solar energy system, Elcam San Diego, was designed to supply domestic hot water heating for a single family residence located in Encinitas, California. System description, performance assessment, operating energy, energy savings, maintenance, and conclusions are presented. The system is a 'Sunspot' two tank cascade type, where solar energy is supplied to either a 66 gallon preheat tank (solar storage) or a 40 gallon domestic hot water tank. Water is pumped directly from one of the two tanks, through the 65 square feet collector array and back into the same tank. Freeze protection is provided by automatically circulating hot water from the hot water tank through the collectors and exposed plumbing when freezing conditions exist. Auxiliary energy is supplied by natural gas. Analysis is based on instrumented system data monitored and collected for one full season of operation.

  2. Uranium mineralization in the San Marcos Volcanic Centre, Chihuahua, Mexico

    International Nuclear Information System (INIS)

    The Eocene San Marcos silicic volcanic centre contains about 30 radiometric anomalies, the most important of which are the San Marcos and Victorino uranium prospects. The volcanic centre is located in the eastern foothills of the Sierra Madre Occidental, 30 km northwest of the Chihuahua City. Volcanic activity began with eruption of the rhyodacitic Victorino Ignimbrite leading to collapse of the 20-km diameter San Marcos Caldera. A second stage of plinian eruptions at 46 million years led to collapse of the 5x15 km Tinaja Graben within the larger San Marcos Caldera. More that 200 m of rhyolitic Quintas Ignimbrite accumulated within this graben. A still smaller nested graben developed inside the Tinaja Graben, in which volcaniclastic deposits and a small volume of ignimbrite accumulated. Later volcanism led to the accumulation of extensive air falls. Ryolite domes erupted in different portions of the San Marcos volcanic centre throughout its history. Finally, the eastern half of the centre was down-faulted by a north-south striking range-front fault and was covered by alluvium. The San Marcos prospect is hosted by the Quintas Ignimbrite, and is interpreted to be the upper level of a vein system comprising two alteration events. The Victorino prospect is a stockwork developed in locally pyritized Victorino Ignimbrite. Wall rocks are haematitically altered. Pitchblende, now partially rimmed by uranophane, was precipitated probably by reduction of the ore fluids during reaction with magnetite-bearing, densely welded portions of the ignimbrite and/or with the pyrite-bearing portions. At other prospects in the volcanic centre, disseminated uranophane occurs in fault breccias, along intrusive dome contacts, and as small mantos in air falls and ignimbrites

  3. Variability of fault slip behavior along the San Andreas Fault in the San Juan Bautista Region

    Science.gov (United States)

    Taira, Taka'aki; Bürgmann, Roland; Nadeau, Robert M.; Dreger, Douglas S.

    2014-12-01

    An improved understanding of the time history of fault slip at depth is an essential step toward understanding the underlying mechanics of the faulting process. Using a waveform cross-correlation approach, we document spatially and temporally varying fault slip along the northernmost creeping section of the San Andreas Fault near San Juan Bautista (SJB), California, by systematically examining spatiotemporal behaviors of characteristically repeating earthquakes (CREs). The spatial distribution of pre-1998 SJB earthquake (1984-1998) fault slip rate inferred from the CREs reveals a ~15 km long low creep or partially locked section located near the 1998 Mw 5.1 SJB earthquake rupture. A finite-fault slip inversion reveals that the rupture of the 1998 SJB earthquake is characterized by the failure of a compact ~4 km2 asperity with a maximum slip of about 90 cm and corresponding peak stress drop of up to 50 MPa, whereas the mean stress drop is about 15 MPa. Following the 1998 earthquake, the CRE activity was significantly increased in a 5-10 km deep zone extending 2-7 km northwest of the main shock, which indicates triggering of substantial aseismic slip. The postseismic slip inferred from the CRE activity primarily propagated to the northwest and released a maximum slip of 9 cm. In this 5-10 km depth range, the estimated postseismic moment release is 8.6 × 1016 N m, which is equivalent to Mw 5.22. The aseismic slip distribution following the 1998 earthquake is not consistent with coseismic stress-driven afterslip but represents a triggered, long-lasting slow earthquake.

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

    Directory of Open Access Journals (Sweden)

    María R PERIER

    2011-12-01

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

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

    Scientific Electronic Library Online (English)

    María R, PERIER; Marilú, ESTALLES; Nidia M, COLLER; Matías N, SUAREZ; Gimena J, MORA; Edgardo E, DI GIÁCOMO.

    2011-12-01

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

  6. Emissions of organic carbon and methane from petroleum and dairy operations in California's San Joaquin Valley

    Directory of Open Access Journals (Sweden)

    D. R. Gentner

    2013-10-01

    Full Text Available Petroleum and dairy operations are prominent sources of gas-phase organic compounds in California's San Joaquin Valley. Ground site measurements in Bakersfield and aircraft measurements of reactive gas-phase organic compounds were made in this region as part of the CalNex (California Research at the Nexus of Air Quality and Climate Change project to determine the sources contributing to regional gas-phase organic carbon emissions. Using a combination of near-source and downwind data, we assess the composition and magnitude of emissions from these prominent sources that are relatively understudied compared to motor vehicles We also developed a statistical modeling method with the FLEXPART-WRF transport and meteorological model using ground-based data to assess the spatial distribution of emissions in the San Joaquin Valley. We present evidence for large sources of paraffinic hydrocarbons from petroleum extraction/processing operations and oxygenated compounds from dairy (and other cattle operations. In addition to the small straight-chain alkanes typically associated with petroleum operations, we observed a wide range of branched and cyclic alkanes that have limited previous in situ measurements or characterization in emissions from petroleum operations. Observed dairy emissions were dominated by ethanol, methanol, and acetic acid, and methane. Dairy operations were responsible for the vast majority of methane emissions in the San Joaquin Valley; observations of methane were well-correlated with non-vehicular ethanol, and multiple assessments of the spatial distribution of emissions in the San Joaquin Valley highlight the dominance of dairy operations for methane emissions. The good agreement of the observed petroleum operations source profile with the measured composition of non-methane hydrocarbons in unrefined natural gas associated with crude oil suggests a fugitive emissions pathway during petroleum extraction, storage, or processing with negligible coincident methane emissions Aircraft observations of emission hotspots from operations at oil wells and dairies are consistent with the statistical source footprint determined via transport modeling and ground-based data. At Bakersfield, petroleum and dairy operations each comprised 22–23% of anthropogenic non-methane organic carbon and were each responsible for ~12% of potential precursors to ozone, but their direct impacts as potential SOA precursors were estimated to be minor. A comparison with the California Air Resources Board emission inventory supports the current relative emission rates of reactive organic gases from these sources in the region.

  7. Sans soleil, le travail de l’imaginaire

    Directory of Open Access Journals (Sweden)

    Barbara Lemaître

    2012-06-01

    Full Text Available Sans soleil se présente d’abbord comme un ensemble d’images hétérogènes. Pourtant, une question est présent dans le film du début au jusqu’à la fin: la notion d’imaginaire, à entendre en son sens psychanalytique du travail ou de l’expérience. L’imaginaire dans Sans soleil est done à la fois un espace où l’individu peut se pendre comme interlocuteur, un instrument de raccordement entre des zones hétérogènes et un mouvement qui épouse les contours de l’expérience de l’altérité.

  8. First experiences with large SAN storage and Linux

    International Nuclear Information System (INIS)

    The use of a storage area network (SAN) with Linux opens possibilities for scalable and affordable large data storage and poses a new challenge for cluster computing. The GridKa center uses a commercial parallel file system to create a highly available high-speed data storage using a combination of Fibre Channel (SAN) and Ethernet (LAN) to optimize between data throughput and costs. This article describes the design, implementation and optimizations of the GridKa storage solution which will offer over 400 TB online storage for 600 nodes. Presented are some throughput measurements of one of the largest Linux-based parallel storage systems in the world

  9. LOD First Estimates In 7406 SLR San Juan Argentina Station

    Science.gov (United States)

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

    2015-10-01

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

  10. Plongements élémentaires dans un groupe hyperbolique sans torsion

    OpenAIRE

    Perin, Chloé

    2008-01-01

    L'objet de cette thèse est d'obtenir une description des plongements élémentaires (au sens de la logique du premier ordre) dans un groupe hyperbolique sans torsion. Le résultat principal décrit ces plongements en terme d'une structure définie par Sela dans sa solution au problème de Tarski: la structure de tour hyperbolique. Ainsi, si H est plongé élementairement dans un groupe hyperbolique sans torsion G, on peut obtenir G en amalgamant successivement des groupes de surfaces à bord à un prod...

  11. SANS study of PLA-mPEG core-shell structured nanoparticles for targeted drug delivery

    International Nuclear Information System (INIS)

    Full text: Colorectal cancer (CRC), referring to cancers that affect the colon and the rectum, is the third most common form of cancer and second leading cause of cancer-related death in the western world (Fortina et al 2007). Currently there are many therapeutic methods, however, most of the traditional methods have enormous side effects, partly because they significantly damage the healthy cells. Therefore, there is an urgent demand to develop a more effective drug delivery mechanism to alleviate these side effects. PLA-mPEG core-shell nanoparticles will be used to deliver the therapeutic agent to the specific area. Materials preparation will include the deuteration of L-Iactic acid monomer and ring opening polymerization to prepare the block copolymer. The drug loaded nanoparticles will be fabricated by double emulsion and solvent evaporation method. The processing parameters will be varied and optimized to maximize the encapsulation efficiency and drug loading. With SANS, we will identify the internal structure of PLA-mPEG nanoparticles with a diameter of 50-100nm, an important aspect to control the release of the drugs. At the same time, we will relate how the different process parameters affect the core size. The relationship between drug release profile and structure of the encapsulation materials will also be studied using the data from SANS.

  12. Hydrogeochemical and Stream Sediment Reconnaissance basic data for San Antonio NTMS Quadrangle, Texas

    International Nuclear Information System (INIS)

    Results of a reconnaissance geochemical survey of the San Antonio Quadrangle, Texas, are reported. Field and laboratory data are presented for 781 groundwater samples, 541 stream sediment samples, and 331 stream water samples. Statistical and areal distributions of uranium and other possible uranium-related variables are displayed. A generalized geologic map of the survey area is provided and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed. Based on results from groundwater and stream water samples, extensive areas within the San Antonio Quadrangle are producing water from saline environments. These areas are located southeast of the Balcones Escarpment. These saline environments delineate a northeast-southwest trend which coincides predominately with the outcrop of the Upper Cretaceous Formations and the formations of the Midway and Wilcox Groups of Tertiary Age. Results from stream sediment samples indicate that high uranium values occur predominately in the southeast corner of the quadrangle. The high values of uranium that occur in this area are associated with the Tertiary Formations, most notably the Carrizo Sand of the Claiborne Group. High uranium values associated with the Carrizo Sand appear to be related to heavy and/or resistate minerals

  13. SAN-RL: combining spreading activation networks and reinforcement learning to learn configurable behaviors

    Science.gov (United States)

    Gaines, Daniel M.; Wilkes, Don M.; Kusumalnukool, Kanok; Thongchai, Siripun; Kawamura, Kazuhiko; White, John H.

    2002-02-01

    Reinforcement learning techniques have been successful in allowing an agent to learn a policy for achieving tasks. The overall behavior of the agent can be controlled with an appropriate reward function. However, the policy that is learned will be fixed to this reward function. If the user wishes to change his or her preference about how the task is achieved the agent must be retrained with this new reward function. We address this challenge by combining Spreading Activation Networks and Reinforcement Learning in an approach we call SAN-RL. This approach provides the agent with a causal structure, the spreading activation network, relating goals to the actions that can achieve those goals. This enables the agent to select actions relative to the goal priorities. We combine this with reinforcement learning to enable the agent to learn a policy. Together, these approaches enable the learning of a configurable behaviors, a policy that can be adapted to meet the current preferences. We compare the approach with Q-learning on a robot navigation task. We demonstrate that SAN-RL exhibits goal-directed behavior before learning, exploits the causal structure of the network to focus its search during learning and results in configurable behaviors after learning.

  14. Under- and over-nutrition among refugees in San Diego County, California.

    Science.gov (United States)

    Rondinelli, Amanda J; Morris, Meghan D; Rodwell, Timothy C; Moser, Kathleen S; Paida, Paulino; Popper, Steve T; Brouwer, Kimberly C

    2011-02-01

    Resettled refugees often arrive in their host country with little knowledge of nutrition or available food choices. We explored nutrition-related issues of recent refugee arrivals to San Diego County-the second largest California resettlement site. In-depth interviews (n = 40) were conducted with refugees, health care practitioners, and refugee service organizations. Content analysis identified nutrition-related themes. Unhealthy weight gain after arrival was the most common concern and was attributed to social pressures among adolescents, food choices and a more sedentary lifestyle. Conversely, undernutrition remained a concern due to poor diets. Factors influencing nutritional problems included continuation of past habits, acculturation, unfamiliarity with available foods and socio-economic influences. The nutritional concerns encountered by resettled refugees in San Diego are not unique to this group but are aggravated by their past experiences, and abrupt changes to food choices and behavior. Addressing contextual factors of poor food choices may prevent some of the long term health consequences of poor nutrition. PMID:20505992

  15. Números cromosómicos de Asteraceae de la Reserva Ecológica del Pedregal de San Ángel (REPSA), México, Distrito Federal / Chromosome numbers in Asteraceae of the Ecological Reserve of the Pedregal de San Ángel (REPSA), Mexico City, Mexico

    Scientific Electronic Library Online (English)

    Fabiola, Soto-Trejo; Guadalupe, Palomino; José Luis, Villaseñor.

    2011-06-01

    Full Text Available Se registraron los números cromosómicos mitóticos o meióticos de 31 especies de Asteraceae en la Reserva Ecológica del Pedregal de San Ángel (REPSA), y por primera vez, los conteos cromosómicos de 3 especies endémicas de México: Acourtia cordata (2n= 54), Ageratina cylindrica (2n= 34) y Viguiera bud [...] dleiiformis (n= 17). Se discuten los resultados obtenidos de acuerdo con los datos disponibles para cada especie analizada. Abstract in english Mitotic or meiotic chromosome numbers are recorded for 31 species of Asteraceae growing in the Ecological Reserve of the Pedregal de San Angel (REPSA), Mexico City. The chromosome counts of 3 species endemic to Mexico are recorded for the first time: Acourtia cordata (2n= 54), Ageratina cilyndrica ( [...] 2n= 34), and Viguiera buddleiiformis (n= 17). The results are discussed in relation to the available data for each of the analyzed taxa.

  16. Números cromosómicos de Asteraceae de la Reserva Ecológica del Pedregal de San Ángel (REPSA, México, Distrito Federal Chromosome numbers in Asteraceae of the Ecological Reserve of the Pedregal de San Ángel (REPSA, Mexico City, Mexico

    Directory of Open Access Journals (Sweden)

    Fabiola Soto-Trejo

    2011-06-01

    Full Text Available Se registraron los números cromosómicos mitóticos o meióticos de 31 especies de Asteraceae en la Reserva Ecológica del Pedregal de San Ángel (REPSA, y por primera vez, los conteos cromosómicos de 3 especies endémicas de México: Acourtia cordata (2n= 54, Ageratina cylindrica (2n= 34 y Viguiera buddleiiformis (n= 17. Se discuten los resultados obtenidos de acuerdo con los datos disponibles para cada especie analizada.Mitotic or meiotic chromosome numbers are recorded for 31 species of Asteraceae growing in the Ecological Reserve of the Pedregal de San Angel (REPSA, Mexico City. The chromosome counts of 3 species endemic to Mexico are recorded for the first time: Acourtia cordata (2n= 54, Ageratina cilyndrica (2n= 34, and Viguiera buddleiiformis (n= 17. The results are discussed in relation to the available data for each of the analyzed taxa.

  17. Malaria control in the municipality of San Esteban, Honduras / Control de la malaria en el municipio de San Esteban, Honduras

    Scientific Electronic Library Online (English)

    Christine Elizabeth, Bell; Laurence, Slutsker; Raymond F., Beach; Stanley O., Foster; German, Jimenez; Maria Elena, Sarmiento.

    2009-03-01

    Full Text Available OBJETIVOS: Evaluar la carga de malaria en San Esteban, departamento de Olancho, Honduras, y ofrecer recomendaciones para su control. MÉTODOS: La malaria es causa de una considerable morbilidad en San Esteban. En 2006, los trabajadores sanitarios informaron un aumento de casos de malaria y solicitaro [...] n recomendaciones para su control. En 2005, en el laboratorio de San Esteban se detectaron 385 casos (316 por Plasmodium vivax y 69 por P. falciparum) en 4 007 frotis sanguíneos (tasa de positividad: 9,6%). Entre mayo y julio de 2006 se evaluó la carga de malaria y se hicieron las recomendaciones. Se revisaron los datos epidemiológicos de los casos confirmados de 2005 y 2006 y se aplicó una encuesta sobre conocimientos, actitudes y hábitos en los hogares para evaluar las prácticas relacionadas con el diagnóstico, el tratamiento y la prevención de la malaria. RESULTADOS: Entre mayo y julio de 2006 en San Esteban se detectaron 143 casos de malaria confirmados por el laboratorio (134 por P. vivax y 9 por P. falciparum), en comparación con 104 (79 por P. vivax y 25 por P. falciparum) entre mayo y julio de 2005. Entre enero de 2005 y julio de 2006 se detectaron 538 casos en San Esteban, con un aumento en la frecuencia entre mayo y octubre y la mayor incidencia en niños de 0 a 14 años. Se aplicaron 112 encuestas en 19 comunidades. De los que respondieron, 70% había tenido algún miembro del hogar con malaria, con una mayor frecuencia en las madres (45%) y los menores de 14 años (37%). La mayoría de los hogares carecían de protección contra los mosquitos, como mosquiteros para las camas y ventanas o fumigación de interiores. CONCLUSIONES: La malaria se mantiene en aumento en San Esteban, con una mayor incidencia en los niños. Se recomienda incrementar la disponibilidad y la promoción de mosquiteros tratados con insecticidas, mejorar la periodicidad y la cobertura de la fumigación de interiores y mejorar los hábitos de la comunidad mediante sesiones educativas. Abstract in english OBJECTIVES: To assess the burden of malaria in San Esteban, Department of Olancho, Honduras, and provide recommendations for control. METHODS: Malaria causes appreciable morbidity in San Esteban. In 2006, health workers reported an increase in malaria cases and requested recommendations for control. [...] In 2005, 385 cases (Plasmodium vivax, 316; P. falciparum, 69) were detected from 4 007 blood smears in the San Esteban laboratory (slide positivity rate = 9.6%). During May-July 2006, we assessed the burden of malaria and made recommendations. We reviewed epidemiologic data from slide-confirmed malaria cases in 2005 and 2006 and conducted a knowledge, attitudes, and practices survey in households to assess malaria diagnostic, treatment, and prevention practices. RESULTS: During May-July 2006, 143 laboratory-confirmed malaria cases were detected (P. vivax, 134; P. falciparum, 9) in San Esteban, compared with 104 (P. vivax, 79; P. falciparum, 25) in May-July 2005. From January 2005 to July 2006, 538 cases were detected in San Esteban, with increased frequency in May-October and the highest incidence in children 0-14 years old. We administered 112 surveys in 19 communities. Seventy percent of respondents reported a history of malaria in a household member, with the highest frequency reported in mothers (45%) and children under 14 years old (37%). Most households did not have mosquito protection such as bed nets, screens, or indoor residual insecticide. CONCLUSIONS: Malaria is ongoing in San Esteban, with increased incidence in children. We recommend increased availability and promotion of insecticide-treated bed nets, improved timing and coverage of indoor residual spraying, and improved community malaria practices through education sessions.

  18. Malaria control in the municipality of San Esteban, Honduras Control de la malaria en el municipio de San Esteban, Honduras

    Directory of Open Access Journals (Sweden)

    Christine Elizabeth Bell

    2009-03-01

    Full Text Available OBJECTIVES: To assess the burden of malaria in San Esteban, Department of Olancho, Honduras, and provide recommendations for control. METHODS: Malaria causes appreciable morbidity in San Esteban. In 2006, health workers reported an increase in malaria cases and requested recommendations for control. In 2005, 385 cases (Plasmodium vivax, 316; P. falciparum, 69 were detected from 4 007 blood smears in the San Esteban laboratory (slide positivity rate = 9.6%. During May-July 2006, we assessed the burden of malaria and made recommendations. We reviewed epidemiologic data from slide-confirmed malaria cases in 2005 and 2006 and conducted a knowledge, attitudes, and practices survey in households to assess malaria diagnostic, treatment, and prevention practices. RESULTS: During May-July 2006, 143 laboratory-confirmed malaria cases were detected (P. vivax, 134; P. falciparum, 9 in San Esteban, compared with 104 (P. vivax, 79; P. falciparum, 25 in May-July 2005. From January 2005 to July 2006, 538 cases were detected in San Esteban, with increased frequency in May-October and the highest incidence in children 0-14 years old. We administered 112 surveys in 19 communities. Seventy percent of respondents reported a history of malaria in a household member, with the highest frequency reported in mothers (45% and children under 14 years old (37%. Most households did not have mosquito protection such as bed nets, screens, or indoor residual insecticide. CONCLUSIONS: Malaria is ongoing in San Esteban, with increased incidence in children. We recommend increased availability and promotion of insecticide-treated bed nets, improved timing and coverage of indoor residual spraying, and improved community malaria practices through education sessions.OBJETIVOS: Evaluar la carga de malaria en San Esteban, departamento de Olancho, Honduras, y ofrecer recomendaciones para su control. MÉTODOS: La malaria es causa de una considerable morbilidad en San Esteban. En 2006, los trabajadores sanitarios informaron un aumento de casos de malaria y solicitaron recomendaciones para su control. En 2005, en el laboratorio de San Esteban se detectaron 385 casos (316 por Plasmodium vivax y 69 por P. falciparum en 4 007 frotis sanguíneos (tasa de positividad: 9,6%. Entre mayo y julio de 2006 se evaluó la carga de malaria y se hicieron las recomendaciones. Se revisaron los datos epidemiológicos de los casos confirmados de 2005 y 2006 y se aplicó una encuesta sobre conocimientos, actitudes y hábitos en los hogares para evaluar las prácticas relacionadas con el diagnóstico, el tratamiento y la prevención de la malaria. RESULTADOS: Entre mayo y julio de 2006 en San Esteban se detectaron 143 casos de malaria confirmados por el laboratorio (134 por P. vivax y 9 por P. falciparum, en comparación con 104 (79 por P. vivax y 25 por P. falciparum entre mayo y julio de 2005. Entre enero de 2005 y julio de 2006 se detectaron 538 casos en San Esteban, con un aumento en la frecuencia entre mayo y octubre y la mayor incidencia en niños de 0 a 14 años. Se aplicaron 112 encuestas en 19 comunidades. De los que respondieron, 70% había tenido algún miembro del hogar con malaria, con una mayor frecuencia en las madres (45% y los menores de 14 años (37%. La mayoría de los hogares carecían de protección contra los mosquitos, como mosquiteros para las camas y ventanas o fumigación de interiores. CONCLUSIONES: La malaria se mantiene en aumento en San Esteban, con una mayor incidencia en los niños. Se recomienda incrementar la disponibilidad y la promoción de mosquiteros tratados con insecticidas, mejorar la periodicidad y la cobertura de la fumigación de interiores y mejorar los hábitos de la comunidad mediante sesiones educativas.

  19. 25 CFR 162.503 - San Xavier and Salt River Pima-Maricopa Reservations.

    Science.gov (United States)

    2010-04-01

    ...leasing on the San Xavier and Salt River Pima-Maricopa Reservations...1955 Act on the San Xavier or Salt River Pima-Maricopa Reservations...or which creates a hazard to health of persons or to property wherever...San Xavier Reservation or the Salt River Pima-Maricopa...

  20. 76 FR 50710 - Security Zones; Cruise Ships, San Pedro Bay, CA

    Science.gov (United States)

    2011-08-16

    ...USCG-2011-0101] RIN 1625-AA87 Security Zones; Cruise Ships, San Pedro Bay, CA AGENCY: Coast...amend 33 CFR 165.1154, Security Zones; Cruise Ships, San Pedro Bay, California, by...within a 100-yard radius around any cruise ship that is located within the San...

  1. 76 FR 15216 - Security Zones; Cruise Ships, Port of San Diego, CA

    Science.gov (United States)

    2011-03-21

    ...USCG-2011-0038] RIN 1625-AA87 Security Zones; Cruise Ships, Port of San Diego, CA AGENCY...amending its regulations for Security Zones; Cruise Ships, Port of San Diego, California...waters within a 100 yard radius around any cruise ship that is located within the San...

  2. 77 FR 1025 - Security Zones; Cruise Ships, San Pedro Bay, CA

    Science.gov (United States)

    2012-01-09

    ...USCG-2011-0101] RIN 1625-AA87 Security Zones; Cruise Ships, San Pedro Bay, CA AGENCY: Coast...amending a security zone regulation for cruise ships visiting San Pedro Bay, California...within a 100-yard radius around any cruise ship that is located within the San...

  3. 76 FR 4833 - Security Zones; Cruise Ships, Port of San Diego, CA

    Science.gov (United States)

    2011-01-27

    ...USCG-2011-0038] RIN 1625-AA87 Security Zones; Cruise Ships, Port of San Diego, CA AGENCY...amend 33 CFR 165.1108, Security Zones; Cruise Ships, Port of San Diego, California...waters within a 100 yard radius around any cruise ship that is located within the San...

  4. 78 FR 48293 - Amendment of Class D and Class E Airspace; San Marcos, TX

    Science.gov (United States)

    2013-08-08

    ...Federal Aviation Administration (FAA), DOT...at San Marcos Municipal Airport and the...Federal Aviation Administration, Southwest Region...at San Marcos Municipal Airport (78 FR...Federal Aviation Administration Order 7400.9W...Amended] San Marcos Municipal Airport,...

  5. Structure modelling of SANS data based on concentrated hard-sphere particles system

    International Nuclear Information System (INIS)

    The application of hard-sphere model in interpreting SANS data has found useful in many material studies. The model has been adopted for analysis of SANS data collected from MINT facility. This paper describes the implication of the model in the study of materials using SANS as a probe. (author)

  6. Management of quarry water and solid wastes from the San Rafael Mining and Manufacturing Complex

    International Nuclear Information System (INIS)

    San Rafael Mining and Milling Complex is located in Mendoza province, in San Rafael Department, 38 km West from San Rafael city and 240 km South from Mendoza city, capital of the province. Activities related with yellow cake production were performed from 1979 to 1999. Nowadays the mine and the plant are in stand by. At the moment technical, economic and environmental studies are being done in order to restart the activities. Different kind of residues are accumulated in the site: a) Tailing; b) Sludges; c) Low grade ores; e) Waste rock; f) Mine water; g) Solid residues (RS). In this paper methodology to treat mine water and solid residues (RS) will be informed. a) Mine water: 800.000 m3 of mine water are accumulated in different open pit. Uranium, radium and arsenic are the main ions to take into account to treat the water. Several laboratory and pilot test have been performed in order to define the treatment of the water, according with the regulatory requirement. A methodology using anion exchange resin to fix uranium and precipitation using barium chloride and iron sulfate to separate radium and arsenic has been developed. b) Solid residues (RS): these residues (precipitates) have been produced by neutralization of effluents in a nuclear purification process (TBP process). They are accumulated in drums. These residues come from Cordoba plant, a factory which produces UO2 powder. The total content of uranium in the precipitate is 14.249 kg with an average uranium concentration of 1,33%. A methodology using sulfuric acid dissolution of the precipitates and anion exchange resin to recovery the uranium has been developed. (author)

  7. Treatment of mine water and solid residues (RS) in San Rafael mining and milling complex

    International Nuclear Information System (INIS)

    San Rafael Mining and Milling Complex is located in Mendoza Province, in San Rafael Department, 38 km West from San Rafael city and 240 km south from Mendoza city, capital of the province. Activities related with yellow cake production were performed from 1979 to 1999. Nowadays the mine and the plant are in stand by. At the moment technical, economic and environmental studies are being done in order to restart the activities. Different kind of residues are accumulated in the site: a) Tailing; b) Sludges; c) Low grade ores; e) Waste rock; f) Mine water; g) Solid residues (RS). In this paper methodology to treat mine water and solid residues (RS) will be informed. a) Mine water: 800.000 m3 of mine water are accumulated in different open pit. Uranium, radium and arsenic are the main ions to take into account to treat the water. Several laboratory and pilot test have been performed in order to define the treatment of the water, according with the regulatory requirement. A methodology using anion exchange resin to fix uranium and precipitation using barium chloride and iron sulfate to separate radium and arsenic has been developed. b) Solid residues (RS): these residues (precipitates) have been produced by neutralization of effluents in a nuclear purification process (TBP process). They are accumulated in drums. These residues come from Cordoba plant, a factory which produces UO2 powder. The total content of uranium in the precipitate is 14.249 kg with an average uranium concentration of 1,33%. A methodology using sulfuric acid dissolution of the precipitates and anion exchange resin to recovery the uranium has been developed. (author)

  8. On the Life and Deeds of San Precario, Patron Saint of Precarious Workers and Lives

    Directory of Open Access Journals (Sweden)

    Marcello Tarì

    2005-01-01

    Full Text Available Noi siamo la generazione post-socialista, la generazione del dopo guerra fredda, della fine delle burocrazie verticali e del controllo sull'informazione. Siamo un movimento globale e neuropeo, che porta avanti la rivoluzione democratica scaturita dal Sessantotto mondiale e lotta contro la distopia neoliberista oggi al culmine. Siamo ecoattivisti e mediattivisti, siamo i libertari della Rete e i metroradicali dello spazio urbano, siamo le mutazioni transgender del femminismo globale, siamo gli hacker del terribile reale. Siamo gli agitatori del precariato e gli insorti del cognitariato. Siamo anarcosindacalisti e postsocialisti. Siamo tutti migranti alla ricerca di una vita migliore. E non ci iconosciamo in voi, stratificazioni tetre e tetragone di ceti politici sconfitti già nel XX secolo. Non ci riconosciamo nella sinistra italyana.Manifesto Bio/Pop del Precariato Metroradicale, 20042004 has marked the beginning of the spreading "cult" of San Precario, Patron Saint of precarious, casual, sessional, temporary, flexible and fractional workers. The Saint appears in public spaces in occasion of rallies, marches, interventions and demonstrations, and its popularity has lead to development of a precise and colorful iconography, hagiography and rituals. This popularity conversely is also the sign of the gravity of the issue of precarity in Italy and Europe .San Precario epitomises current Italian activist practices. These practices, although specifically Italian, intersect with similar realities in Europe and are based on mythopoetic narratives and actions and mediatic embodiments. This paper analysis a variety of texts produced around San Precario, from posters, saint cards, product cards, videos, "official" narratives, personal accounts, relating them to the political debate surrounding precarity.

  9. Correlation between deep fluids, tremor and creep along the central San Andreas fault.

    Science.gov (United States)

    Becken, Michael; Ritter, Oliver; Bedrosian, Paul A; Weckmann, Ute

    2011-12-01

    The seismicity pattern along the San Andreas fault near Parkfield and Cholame, California, varies distinctly over a length of only fifty kilometres. Within the brittle crust, the presence of frictionally weak minerals, fault-weakening high fluid pressures and chemical weakening are considered possible causes of an anomalously weak fault northwest of Parkfield. Non-volcanic tremor from lower-crustal and upper-mantle depths is most pronounced about thirty kilometres southeast of Parkfield and is thought to be associated with high pore-fluid pressures at depth. Here we present geophysical evidence of fluids migrating into the creeping section of the San Andreas fault that seem to originate in the region of the uppermost mantle that also stimulates tremor, and evidence that along-strike variations in tremor activity and amplitude are related to strength variations in the lower crust and upper mantle. Interconnected fluids can explain a deep zone of anomalously low electrical resistivity that has been imaged by magnetotelluric data southwest of the Parkfield-Cholame segment. Near Cholame, where fluids seem to be trapped below a high-resistivity cap, tremor concentrates adjacent to the inferred fluids within a mechanically strong zone of high resistivity. By contrast, subvertical zones of low resistivity breach the entire crust near the drill hole of the San Andreas Fault Observatory at Depth, northwest of Parkfield, and imply pathways for deep fluids into the eastern fault block, coincident with a mechanically weak crust and the lower tremor amplitudes in the lower crust. Fluid influx to the fault system is consistent with hypotheses of fault-weakening high fluid pressures in the brittle crust. PMID:22129729

  10. Lenguaje, belleza y verdad en Cicerón y San Agustín: las encrucijadas de la persuasión

    Scientific Electronic Library Online (English)

    Andrés, Covarrubias C..

    Full Text Available En este artículo me propongo mostrar las profundas diferencias entre Cicerón y San Agustín, desde el punto de vista de sus respectivas visiones del arte retórico. Mientras que, para el primero, la oratoria se ampara en el horizonte de las meras probabilidades, teniendo como fin la persuasión del aud [...] itorio, para el Obispo de Hipona, en cambio, el referente último está marcado por el hallazgo de la verdad, a partir de las Sagradas Escrituras. En efecto, Cicerón construye una teoría retórica compatible con la argumentación que debe dominar un buen abogado, sin las limitaciones de la obligación a la verdad y la prohibición del encubrimiento punible, mientras que San Agustín, en el De doctrina christiana, busca el establecimiento de una retórica consecuente con las aspiraciones de un auténtico orador eclesiástico. Debido a la diferencia de objetivos propuestos por cada uno de estos filósofos, mientras Cicerón se aproxima cada vez más a una posición relativista, San Agustín, aceptando la relatividad, busca, sin embargo, una práctica oratoria compatible con la expresión más pura y fidedigna de la verdad Abstract in english In this article, I attempt to show the profound differences between Cicero and Saint Augustine concerning the rhetorical art. According to Cicero the oratory makes sense in the context of mere probabilities and aims at convincing the audience. Saint Augustine, on the contrary, thinks the scope of th [...] e oratory is given by finding truth in the Holy Scriptures. Indeed, Cicero states his theory as compatible with the arguments which a good lawyer should have, no matter they do not follow truth or hide what is against law. In De doctrina christiana, Saint Augustine prefers to state a rhetoric coherent to the aspirations of the authentic ecclesiastical orator. So, it is due to their different theories that Cicero approaches to a relativism, but Saint Augustine, though he accepts relativity, seeks an oratory practice compatible to the purest expression of truth

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

    Directory of Open Access Journals (Sweden)

    Massimo Palme

    2014-05-01

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

  12. Crossing the Border: Mobility as a Resource in the Tijuana/San Diego and Tecún Umán/Tapachula Regions

    Scientific Electronic Library Online (English)

    Amalia E., Campos Delgado; Olga, Odgers Ortiz.

    2012-12-01

    Full Text Available En este artículo proponemos que la movilidad transfronteriza es un elemento fundamental en la manera en que los sujetos se relacionan con el espacio y construyen sus referentes a este respecto. A partir del trabajo etnográfico realizado en las regiones fronterizas Tijuana/San Diego y Tecún Umán/ Tap [...] achula, se analiza la relación entre el espacio fronterizo y la movilidad espacial de sus habitantes. Concluimos que existen al menos cuatro posibles formas de construcción de la movilidad en contextos fronterizos. Abstract in english This paper suggests that transborder mobility is crucial to the way individuals relate to space and the meanings that they construct about it. Based on ethnographic work carried out in the Tijuana/San Diego and Tecún Umán/Tapachula border regions, an analysis is conducted of the relationship between [...] the border region and the spatial mobility of its inhabitants. We conclude that there are at least four possible ways of constructing mobility in border contexts.

  13. The Structural Response of Polyelectrolyte Dendrimer toward the Molecular Protonation: The Inconsistence Revealed by SANS and NMR

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Wei-Ren [ORNL; Herwig, Kenneth W [ORNL; Hong, Kunlun [ORNL; Li, Xin [ORNL; Liu, Emily [Rensselaer Polytechnic Institute (RPI); Liu, Yun [National Institute of Standards and Technology (NIST); Porcar, L. [National Institute of Standards and Technology (NIST); Shew, Chwen-Yang [City University of New York (CUNY); Smith, Gregory Scott [ORNL; Wu, Bin [ORNL; Liu, Dazhi [ORNL; Gao, Carrie Y [ORNL

    2012-01-01

    Polyamidoamine (PAMAM) dendrimers and their charged state in deuterium oxide have been investigated with diffusion NMR and small angle neutron scattering (SANS) techniques. NMR measurement suggests that, upon increasing the molecular protonation by progressive acidification of solutions, significant variation of hydrodynamic radius, calculated by the Stokes-Einstein relation with given surface condition, is observed upon increasing the molecular protonation. However, comparative SANS experiment indicates little dependence of dendrimer global size, in terms of radius of gyration, on molecular protonation. This observed inconsistence indicates the necessity of incorporating the effect of molecular interface modification by dressed counterion, when dynamical measurements are used for determination the structural characteristics of ionic soft colloids even in a dilute enough suspension.

  14. Provision of utility support services to the US Department of Energy San Francisco Operations Office. Final technical report

    Energy Technology Data Exchange (ETDEWEB)

    1994-04-01

    The main purpose of this project was to provide to DOE/SAN continuing, follow-up support to realize savings from a number of alternate supply arrangements that had already been and/or were expected to be identified under the original project. This expected continuation of these efforts is demonstrated by certain of the tasks that are spelled out in the Statement of Work. For example: Evaluate and propose alternative options and methods for improving efficiency, reducing cost, and making effective use of the energy supplies and facilities under various conditions of use; Provide engineering and economic analysis and recommendations for utility-related facilities and service issues, such as high voltage discounts, ownership of facilities, etc.; Assist in developing strategy and documentation in support of negotiating utility contracts and modifications thereto. In addition, the follow-on contract provided for monitoring and intervening in rate cases that had particular relevance to the DOE/SAN laboratories.

  15. Restos fósiles de tortugas en San Buenaventura Nealtican, Puebla / Fossil turtles remains from San Buenaventura Nealtican, Puebla

    Scientific Electronic Library Online (English)

    Jorge Alfredo, HERRERA-FLORES.

    2009-12-01

    Full Text Available Se describe y comenta material fósil de tortugas, procedente de San Buenaventura Nealtican, Puebla. Según sus características morfológicas es referido al género Trachemys, lo que representa el primer registro fósil de este género para el estado de Puebla, además de dar a conocer una nueva localidad [...] con herpetofauna para el Pleistoceno de Puebla. Abstract in english Fossil material of turtles from San Buenaventura Nealtican, Puebla is described and commented. According to its morphologic characteristics this material is referred to the genus Trachemys, which represents the first fossil record of this genus for the State of Puebla and a new locality with herpeto [...] fauna for the Pleistocene of Puebla.

  16. Sociedades agrícolas en resistencia. Los pueblos de San Miguel, Santa Cruz y San Pedro, 1878-1883

    Directory of Open Access Journals (Sweden)

    Porfirio Neri Guarneros

    2013-09-01

    Full Text Available Agricultural societies in the state of Mexico involved a form of legal resistance used by indigenous communities in the face of liberal individualization policies of communal property, particularly the federal seizure law of June 25, 1956. In this context, some residents of the towns of Santa Cruz and San Miguel created an agricultural association, as did residents from the town of San Pedro, to retain the collective use of their communal goods and acquire some legal capacity. This condition thus allowed indigenous peoples to present writs of amparo to defend "private" rights.

  17. Iglesias evangélicas y conservación en San Pacho (Darién, Caribe colombiano) / Evangelical Churches and Conservation in San Pacho, Darién (Colombian Caribbean) / Igrejas evangélicas e conservação em San Pacho, Darién - Caribe colombiano

    Scientific Electronic Library Online (English)

    Aída, Gálvez; Julio, Salazar; Lorena, Ramírez.

    2009-07-01

    Full Text Available A localidade San Francisco de Asís (Acandí, Chocó), no Caribe colombiano, é uma sede reconhecida de ações de conservação ambiental, graças ao trabalho de organizações e pessoas que buscam aliviar a crise ambiental global. A recente expansão do movimento evangélico entre os moradores, anteriormente c [...] atólicos, converte as novas igrejas locais em atores sociais capazes de contribuir nos projetos de conservação dos recursos marinhos e da floresta. Embora não exista uma articulação orgànica entre os ambientalistas e as igrejas evangélicas, ao analisar uma experiència conjunta, durante as jornadas de proteção das tartarugas marinhas, vemos que esta temática vai ganhando relevància para as organizações religiosas, de acordo com os dados derivados de uma etnografia realizada em 2008 e 2009. Assim, as crenças religiosas deixam de ser contrapartida de regras para converterem-se em orientações dependentes do contexto no qual operam. Abstract in spanish La localidad de San Francisco de Asís (Acandí, Chocó) sobre el mar Caribe, es una reconocida sede de acciones de conservación ambiental, gracias al trabajo de organizaciones y personas que buscan paliar la crisis ambiental global. La gran expansión del movimiento evangélico entre pobladores que ante [...] s profesaban el catolicismo, hace de las nuevas iglesias locales un actor social en posición de contribuir a los proyectos de conservación de recursos marinos y del bosque. Si bien no existe una articulación orgánica entre el movimiento de conservacionistas y las iglesias evangélicas, al analizar una experiencia compartida en las jornadas de protección de las tortugas marinas, vemos cómo el tema cobra relevancia para las organizaciones religiosas, según la etnografía realizada entre los años 2008 y 2009. Así, las creencias religiosas dejan de ser contrapartida de normas, para constituirse en orientaciones dependientes del contexto en que operan. Abstract in english The locality of San Francisco de Asís (Acandí, Chocó) overlooking the Caribbean Sea, is a well-known headquarter for actions related to environmental protection, thanks to the work of organization and individuals that try to alleviate the global environmental crisis. The great expansion of the evang [...] elical movement among populations that formerly were catholic puts these new local churches in a position of social actors that can contribute to the conservation projects of marine life and forests. Although there is no organic link between the conservationist movement and evangelical churches, analyzing a shared experience in the journeys of protecting marine turtles, we see how the topic gains relevance for the religious organizations, according to the ethnography realized between 2008 and 2009. Thus, religious believes cease to be contrasts to the norm, to set themselves up as dependent orientations within the context in which they operate.

  18. Asentamiento y transición en el lienzo de San Jerónimo Otla, Coixtlahuaca / Settlement and Transition in the Lienzo of San Jerónimo Otla, Coixtlahuaca

    Scientific Electronic Library Online (English)

    Sebastián van, Doesburg.

    Full Text Available Recientemente, se dio a conocer la existencia de un lienzo pictográfico en la comunidad de San Jerónimo Otla, una agencia de Coixtlahuaca. El documento es el decimotercer texto del llamado "Grupo Coixtlahuaca". En esta contribución se describe el lienzo y se busca contextualizarlo con la ayuda de la [...] documentación archivística existente y a través de la comparación con los otros documentos del mismo grupo. Se analizan varios temas relacionados con la dramática transformación de la comunidad a raíz de las reorganizaciones y redefiniciones llevadas a cabo durante el siglo XVI. La información más antigua se refiere a las relaciones entre los nobles de Otla y uno de los fundadores de Coixtlahuaca en el siglo XIII, quizás reflejando la ayuda de estos nobles en la conquista de la parte sur de la cuenca. Las datos más recientes refieren a la creación del actual pueblo en 1591 a raíz de una separación de una congregación anterior del año de 1556. Abstract in english Recently, the existence of a pictographic lienzo (canvas) came to light in the community of San Jerónimo Otla in the municipality (agencia) of Coixtlahuaca. This document is the thirteenth text of the so-called "Coixtlahuaca Group". The essay first describes the lienzo itself and then seeks to conte [...] xtualize it with the help of existing archival documentation and through comparisons to other documents in the collection. It analyzes several issues related to the dramatic transformation of this town that resulted from a series of reorganizations and redefinitions that occurred in the 16th century. The oldest information mentions the relations between the nobles of Otla and one of Coixtlahuaca's founders in the 13th century and may reflect the help that nobles there provided during the conquest of that area in the southern basin. The most recent data speak of the creation of the existing town in 1591, which emerged after the separation of a congregation that existed before the year 1556.

  19. Sociedades agrícolas en resistencia. Los pueblos de San Miguel, Santa Cruz y San Pedro, 1878-1883 / Resisting Agricultural Societies. The Towns of San Miguel, Santa Cruz, and San Pedro, 1878-1883 / Sociedades agrícolas em resistência. Os povoados de San Miguel, Santa Cruz e San Pedro, 1878-1883

    Scientific Electronic Library Online (English)

    Porfírio, Neri Guarneros.

    2013-09-01

    Full Text Available As sociedades agrícolas no estado do México provocaram uma forma de resistência legal, empregada pelas comunidades indígenas ante as políticas liberais de individualização da propriedade comunal, principalmente da lei federal sobre desamortização de 25 de junho de 1856. Neste contexto, alguns vizinh [...] os dos povoados de Santa Cruz e San Miguel integraram uma sociedade agrícola, como também ocorreu no povoado de San Pedro, para conservar o usufruto coletivo de seus bens comunais e adquirir certa capacidade jurídica. Essa condição, portanto, permitiu aos indígenas apresentar juízos de amparo para defender direitos "privados". Abstract in spanish Las sociedades agrícolas en el estado de México implicaron una forma de resistencia legal, empleada por las comunidades indígenas ante las políticas liberales de individualización de la propiedad comunal, principalmente de la ley federal sobre desamortización del 25 de junio de 1856. En este context [...] o, algunos vecinos de los pueblos de Santa Cruz y San Miguel integraron una sociedad agrícola, como también ocurrió en el poblado de San Pedro, para conservar el disfrute colectivo de sus bienes comunales y adquirir cierta capacidad jurídica. Esta condición, por tanto, les permitió a los indígenas presentar juicios de amparo para defender derechos "privados". Abstract in english Agricultural societies in the state of Mexico involved a form of legal resistance used by indigenous communities in the face of liberal individualization policies of communal property, particularly the federal seizure law of June 25, 1956. In this context, some residents of the towns of Santa Cruz a [...] nd San Miguel created an agricultural association, as did residents from the town of San Pedro, to retain the collective use of their communal goods and acquire some legal capacity. This condition thus allowed indigenous peoples to present writs of amparo to defend "private" rights.

  20. Deterioration of San rock art: new findings, new challenges

    Scientific Electronic Library Online (English)

    Kevin, Hall; Ian, Meiklejohn; Joselito, Arocena; Linda, Prinsloo; Paul, Sumner; Lyndl, Hall.

    2007-10-01

    Full Text Available The heritage of San rock art in southern Africa is globally acknowledged, and was one of the primary reasons for the successful nomination of the uKhahlamba/ Drakensberg Park in South Africa as a World Heritage Site.¹ Deterioration of rock paintings in the reserve could adversely affect the internat [...] ional status of the region, particularly as little has been achieved with regard to preserving the art for future generations. A study is currently under way in the Injisuthi and Giant's Castle areas of the park, to investigate the deterioration of San art; this article serves to introduce the project and to highlight some initial findings. Previous research on the weathering of San paintings has focused largely on either monitoring rock shelters² or investigating rock surfaces that are adjacent to the paintings. None of the methods applied in earlier investigations has considered the interface between rock and pigments, mainly because of the potential damage that may result from the use of tactile monitoring equipment. Recent advances in weathering research, using improved techniques to measure conditions at the rock surface where the San art is painted,³ provide new insights into surficial processes and suggest new lines of investigation.

  1. Nuclear science programs at San Jose State University

    International Nuclear Information System (INIS)

    San Jose State University provides undergraduate, graduate, and outreach programs in nuclear science education that are unique in the US and perhaps in the world. A dedicated Nuclear Science Facility, specifically designed and equipped for undergraduate and graduate nuclear science laboratory work, is a key that helps make these programs possible. (author) 3 tabs

  2. Les bains de San Bernardino (Grisons, CH)

    OpenAIRE

    Hainoz, Adeline; Keller, Lucia

    2013-01-01

    San Bernardino est un village typique de montagne qui doit son développement au tourisme thermal du XIXe siècle et qui, de nos jours, comme beaucoup d'autres stations similaires, a perdu de son éclat. Afin de redonner vie à cette ancienne tradition therma

  3. The Basic Design Report of the 40M SANS Instrument

    Energy Technology Data Exchange (ETDEWEB)

    Han, Young Soo; Lee, Chang Hee; Hwang, Dong Gil; Kim, Hak Rho [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of); Kim, Tae Hwan; Choi, Sung Min [Korea Advanced Institute of Science and Technology, Daejeon (Korea, Republic of)

    2006-04-15

    The HANARO cold neutron research facility project was launched on July 1, 2003. A state of the art SANS instrument was selected as a top-priority instrument by an instrument selection committee, which consisted of domestic users and HANARO personnel. An instrument development team and an international and domestic instrument advisory team were formulated. The guide and the instrument simulation were performed using Vitess software and the optimum basic design was completed based on the simulation results and the international advisory team reviews. The optimum design of the guide for the 40M SANS instrument was completed and the optimum basic design of the 40M the SANS instrument was also completed based on the Vitess simulation results. The Q range of the instrument will cover from 0.0008 to 1.0 A-1 and the maximum flux at a sample position can reach about 5.5x10 7 n/cm2sec. The simulation results and the basic design product will be used for the detailed design and the construction of the SANS instrument. The simulation results could be applied to the development of the other instrument.

  4. Characterization of aerosols in the Metropolitan Area of San Jose

    International Nuclear Information System (INIS)

    The objective of the present study, was to elaborate a profile of the contamination by private matter and to characterize the aerosols collected in the Metropolitan Area of San Jose (Costa Rica). For that, a campaign of sampling was carried out in three points of the city of San Jose, differentiated by there degree of activity: Center of San Jose (Central Station of Firemen), San Isidro of Coronado -Canton of Vasquez of Coronado- (Municipality) and Escazu (Municipality). Such campaign was carried out from April 4 to July 4, 1996 (transition summer-winter), and in two periods of time of 8 hours: 8 a.m. to 4 p.m. and of 8 p.m. to 4 a.m. The aerosols were collected utilizing Gent Pm-10 samplers, in filters of polycarbonate of 0,4 ?m and 8 ?m in cascade, with a flow average of 15 L/min., and it determined the composition average of the present aerosols. The concentration of the majority of the anions were obtained by means of ionic chromatography of high resolution, and the main cations by spectrophotometry of atomic absorption with electro thermic atomization. The space-temporary variations of the concentrations were evaluated and their correlation with the meteorologic variable. (S. Grainger)

  5. The Basic Design Report of the 40M SANS Instrument

    International Nuclear Information System (INIS)

    The HANARO cold neutron research facility project was launched on July 1, 2003. A state of the art SANS instrument was selected as a top-priority instrument by an instrument selection committee, which consisted of domestic users and HANARO personnel. An instrument development team and an international and domestic instrument advisory team were formulated. The guide and the instrument simulation were performed using Vitess software and the optimum basic design was completed based on the simulation results and the international advisory team reviews. The optimum design of the guide for the 40M SANS instrument was completed and the optimum basic design of the 40M the SANS instrument was also completed based on the Vitess simulation results. The Q range of the instrument will cover from 0.0008 to 1.0 A-1 and the maximum flux at a sample position can reach about 5.5x10 7 n/cm2sec. The simulation results and the basic design product will be used for the detailed design and the construction of the SANS instrument. The simulation results could be applied to the development of the other instrument

  6. Four years of meteorological measurements at San Pedro Mártir observatory

    Directory of Open Access Journals (Sweden)

    R. Michel

    2003-01-01

    Full Text Available Se presentan datos clim aticos adquiridos durante los ultimos cuatro a~nos con la estaci on meteorol ogica del telescopio de 1.5 m del Observatorio Astron omico Nacional en San Pedro M artir. Las temperaturas medidas est an en el intervalo de

  7. SANS Investigation of the Photosynthetic Machinery of Chloroflexus Aurantiacus

    International Nuclear Information System (INIS)

    Green photosynthetic bacteria harvest light and perform photosynthesis in low light environments, and contain specialized antenna complexes to adapt to this condition. In this report, we present studies using small-angle neutron scattering (SANS) to elucidate structural information about the photosynthetic apparatus, including the peripheral light harvesting chlorosome complex, the integral membrane light-harvesting B808-866 complex and the reaction center (RC) in the thermophilic green phototrophic bacterium Chloroflexus aurantiacus. Using contract variation in SANS measurements, our studies suggest that the B808-866 complex is wrapped around the RC in Cfx. aurantiacus, and the overall size and conformation for the B808-866 complex of Cfx. aurantiacus is roughly comparable to the LH1 antenna complex of the purple bacteria. A similar size for the isolated B808-866 complex is also suggested via dynamic light scattering measurements. Alos, a smaller size of the RC of Cfx. aurantiacus that the RC of the purple bacteria is observed. Further, our SANS measurements indicate that the chlorosome is a lipid body with rod-like shape, and that the self-assembly of bacteriochlorophylls, the major component of the chlorosome, is lipid-like. Finally, two populations of chlorosome particles are suggested in our SANS measurements.

  8. Geologic mapping around Mahoma mining. San Jose mining company

    International Nuclear Information System (INIS)

    This study has as main objective carry out a geological mapping as well as the structural analysis , in 1.5.000 scale in the zone where the gold benefit plant of San Jose mining company is settled (Mahoma Mining). From this study has been marked many drillings.

  9. Social Integration and Health Behavioral Change in San Luis, Honduras

    Science.gov (United States)

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

    2010-01-01

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

  10. Estructura de la región Sierra de Guayaguas -Marayes, Provincia de San Juan y San Luis / Structure of the region of Sierra de Guayaguas- Marayes, provinces of San Juan and San Luis

    Scientific Electronic Library Online (English)

    Carlos, Gardini; David, Rivarola; Maximiliano, Agüera; Gerónimo, Candela.

    2009-11-01

    Full Text Available El sector ubicado en las serranías del Desierto -serranías occidentales de San Juan y San Luis está caracterizado pordeformaciones tectónicas neógenas del tipo thick-skinned, que afectan a núcleosde basamento cristalino como así también las secuencias sedimentariascontinentales del Triásico y Cretác [...] ico, producto de inversión tectónica de losdepocentros. Como resultado de ésto se generan pliegues por propagación defalla asociados a una sucesión de corrimientos submeridianos de inclinaciónintermedia al este. Mediante el estudio y mapeo de las diferentes estructurasen el campo, se han definido diferentes tipos de movimientos a lo largo de lossegmentos de falla analizados, asociados con movimientos transcurrentes concaracterísticas transpresivas y localmente transtensivas. Abstract in english The area located in the Serranias del Desierto - SierrasOccidentales of San Juan and San Luis is characterized by Neogene tectonicdeformation of thick-skinned type that affected the nuclei of crystallinebasement and the Triassic and Cretaceous continental sedimentary sequences,product of inversion t [...] ectonics of those depocenters. Because of the inversiontectonics are generated fault propagation folds, associated with a submeridianparallel succession of thrusts with middle dipping to the east. Different directionsof displacements along the analyzed fault segments are defined based on thefield study and mapping of the differents structures associated withstrike-slip movement with transpressional and locally transtensionalcharacteristics.

  11. Estructura de la región Sierra de Guayaguas -Marayes, Provincia de San Juan y San Luis Structure of the region of Sierra de Guayaguas- Marayes, provinces of San Juan and San Luis

    Directory of Open Access Journals (Sweden)

    Carlos Gardini

    2009-11-01

    Full Text Available El sector ubicado en las serranías del Desierto -serranías occidentales de San Juan y San Luis está caracterizado pordeformaciones tectónicas neógenas del tipo thick-skinned, que afectan a núcleosde basamento cristalino como así también las secuencias sedimentariascontinentales del Triásico y Cretácico, producto de inversión tectónica de losdepocentros. Como resultado de ésto se generan pliegues por propagación defalla asociados a una sucesión de corrimientos submeridianos de inclinaciónintermedia al este. Mediante el estudio y mapeo de las diferentes estructurasen el campo, se han definido diferentes tipos de movimientos a lo largo de lossegmentos de falla analizados, asociados con movimientos transcurrentes concaracterísticas transpresivas y localmente transtensivas.The area located in the Serranias del Desierto - SierrasOccidentales of San Juan and San Luis is characterized by Neogene tectonicdeformation of thick-skinned type that affected the nuclei of crystallinebasement and the Triassic and Cretaceous continental sedimentary sequences,product of inversion tectonics of those depocenters. Because of the inversiontectonics are generated fault propagation folds, associated with a submeridianparallel succession of thrusts with middle dipping to the east. Different directionsof displacements along the analyzed fault segments are defined based on thefield study and mapping of the differents structures associated withstrike-slip movement with transpressional and locally transtensionalcharacteristics.

  12. Non-destructive test of turbine blade by SANS

    Science.gov (United States)

    Bianchi, P.; Carsughi, F.; D'Angelo, D.; Magnani, M.; Olchini, A.; Rustichelli, F.; Stefanon, M.

    1989-01-01

    Small Angle Neutron Scattering (SANS) was used to investigate, in a non-destructive way, the effect of a thermomechanical treatment on UDIMET 720 nickel superalloy, in order to study the evolution of the ?' precipitation, connected to the strengthening of the material, which suffers a very high temperature and corrosive attack.

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

    International Nuclear Information System (INIS)

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

  14. Playas reflectivas y disipativas macromareales del Golfo San Jorge, Chubut / Reflective and dissipative macrotidal beaches of San Jorge Gulf, Chubut

    Scientific Electronic Library Online (English)

    Federico I., Isla; Nerina, Iantanos; Enrique, Estrada.

    2002-12-01

    Full Text Available El Golfo San Jorge tiene una forma semicircular abierta a las olas del Atlántico, con diferencias en la orientación de sus playas y por lo tanto en el efecto de los vientos dominantes del oeste. Su régimen macromareal semidiurno lo hace ideal para analizar modelos morfodinámicos de playas. La costa [...] es de acantilados de variada altitud conformados en sedimentitas marinas del Terciario superior (Formación Patagonia) y playas fósiles cuaternarias. En una rápida descripción morfológica de las playas del golfo, se pueden distinguir de grava y arena, de considerable pendiente en los sectores intermareales más altos (10%), y playas de muy baja pendiente (1,5%) compuestas casi exclusivamente por arena fina. En el presente trabajo se caracterizaron morfológica y granulométricamente las playas de Caleta Córdova (CC) y de El Límite Chubut - Santa Cruz (Ch-SC) como representantes de los extremos reflectivo y disipativo, respectivamente. Las diferencias reconocidas no obedecen a cuestiones dinámicas sino principalmente a factores heredados (morfología y disponibilidad de aportes). La playa de CC es originada por la erosión de acantilados. La playa Ch-SC está en una zona baja y es mantenida por aportes eólicos del oeste (blowouts) y por el reciclado de acumulaciones medanosas de arena fina. Debido a que ambas playas poseen normalmente rompientes de ola de sólo 0,2 m durante la bajamar, se concluye que las diferencias morfodinámicas obedecen exclusivamente a la disponibilidad de sedimento (tamaño de grano y volumen) que es distribuido en el perfil de la playa. Se destaca en estas playas de arena fina (playas de La Herradura y Alsina) la necesidad de mantener sus aportes sedimentarios del oeste de modo de no inducir balances erosivos involuntarios. Abstract in english The morphodynamics of macrotidal beaches is not well known. The tide controls the action of waves, and the swash, backwash and surf are very important processes only at shallow water. Bedforms occur in relation to these shallow-water processes and to grain-size variations. The San Jorge Gulf has a s [...] emicircular shape open to waves entering from the Atlantic, with differences in beach orientations and therefore in the significant effects of the dominant westerly winds. The macrotidal semidiurnal regime makes it ideal to test models about beach morphodynamics. The coast is constituted by cliffs carved into Upper Tertiary marine sediments (Patagonia Formation) and gravel beach-ridge systems belonging to Quaternary highstands. Open-coast beaches (Camarones, Cabo Blanco) are composed of gravel, while towards the headlands of the gulf there are beaches composed dominantly by sand. Pocket beaches along the coastline between Rada Tilly and Playa Alsina are characterised by an eolian supply of fine sand. In regard to the morphology of these beaches, it should be distinguished between beaches composed of gravel and sand with steep intertidal slopes (>10%), and sandy beaches of very gentle slopes (

  15. Playas reflectivas y disipativas macromareales del Golfo San Jorge, Chubut Reflective and dissipative macrotidal beaches of San Jorge Gulf, Chubut

    Directory of Open Access Journals (Sweden)

    Federico I. Isla

    2002-12-01

    Full Text Available El Golfo San Jorge tiene una forma semicircular abierta a las olas del Atlántico, con diferencias en la orientación de sus playas y por lo tanto en el efecto de los vientos dominantes del oeste. Su régimen macromareal semidiurno lo hace ideal para analizar modelos morfodinámicos de playas. La costa es de acantilados de variada altitud conformados en sedimentitas marinas del Terciario superior (Formación Patagonia y playas fósiles cuaternarias. En una rápida descripción morfológica de las playas del golfo, se pueden distinguir de grava y arena, de considerable pendiente en los sectores intermareales más altos (10%, y playas de muy baja pendiente (1,5% compuestas casi exclusivamente por arena fina. En el presente trabajo se caracterizaron morfológica y granulométricamente las playas de Caleta Córdova (CC y de El Límite Chubut - Santa Cruz (Ch-SC como representantes de los extremos reflectivo y disipativo, respectivamente. Las diferencias reconocidas no obedecen a cuestiones dinámicas sino principalmente a factores heredados (morfología y disponibilidad de aportes. La playa de CC es originada por la erosión de acantilados. La playa Ch-SC está en una zona baja y es mantenida por aportes eólicos del oeste (blowouts y por el reciclado de acumulaciones medanosas de arena fina. Debido a que ambas playas poseen normalmente rompientes de ola de sólo 0,2 m durante la bajamar, se concluye que las diferencias morfodinámicas obedecen exclusivamente a la disponibilidad de sedimento (tamaño de grano y volumen que es distribuido en el perfil de la playa. Se destaca en estas playas de arena fina (playas de La Herradura y Alsina la necesidad de mantener sus aportes sedimentarios del oeste de modo de no inducir balances erosivos involuntarios.The morphodynamics of macrotidal beaches is not well known. The tide controls the action of waves, and the swash, backwash and surf are very important processes only at shallow water. Bedforms occur in relation to these shallow-water processes and to grain-size variations. The San Jorge Gulf has a semicircular shape open to waves entering from the Atlantic, with differences in beach orientations and therefore in the significant effects of the dominant westerly winds. The macrotidal semidiurnal regime makes it ideal to test models about beach morphodynamics. The coast is constituted by cliffs carved into Upper Tertiary marine sediments (Patagonia Formation and gravel beach-ridge systems belonging to Quaternary highstands. Open-coast beaches (Camarones, Cabo Blanco are composed of gravel, while towards the headlands of the gulf there are beaches composed dominantly by sand. Pocket beaches along the coastline between Rada Tilly and Playa Alsina are characterised by an eolian supply of fine sand. In regard to the morphology of these beaches, it should be distinguished between beaches composed of gravel and sand with steep intertidal slopes (>10%, and sandy beaches of very gentle slopes (<2%. Both extremes, reflective and dissipative beaches, were characterised in morphology and grain-size distribution, and were considered represented by Caleta Córdova (CC, Chubut and El Límite (EL, Chubut- Santa Cruz, respectively. The differences do not obey directly to dynamic causes, but to inherited factors: bathymetry (that induce wave-refraction patterns and sediment sources. The CC beach originated by the erosion of cliffs. The EL beach is on a low-lying coast, supported by aeolian sources from the west, and the recycling of fine sand foredunes. As both beaches have wave heights at breakers of only 0,2 m during low tide, it is here concluded that their morphodynamics differ exclusively by the sediment availability (grain size and volume that control the spatial and temporal distribution of wave energy along the beach profile, and the refraction pattern of waves coming from the Atlantic. Waves incoming from the ENE, E and ESE concentrate at the southwestern coast of the gulf due to a submerged platform located at its southeastern portion. Only waves from the SE converge at

  16. Investigating Fault Slip and Rheology Along the San Andreas Fault in the San Juan Bautista Region

    Science.gov (United States)

    Taira, T.; Burgmann, R.; Nadeau, R. M.; Dreger, D. S.

    2012-12-01

    An improved understanding of the connection between seismic behavior and fault-zone rheology at depth is an essential step toward understanding the underlying mechanics of the faulting process. We investigate the seismicity along the northernmost creeping section of the San Andreas fault near San Juan Bautista (SJB), California, by systematically examining spatiotemporal behaviors of the aftershock sequences following the 12 August 1998 Mw 5.1 SJB earthquake. This 1998 SJB earthquake was the largest historic earthquake in the SJB area and was associated with a large slow slip event. Using a waveform cross-correlation approach (Peng and Zhao, 2009, NatureGeo), we have detected previously uncataloged earthquakes (about 500 events), resolving details of the aftershock activity in a zone at a depth of 9 km about 7 km northwest of the 1998 SJB mainshock. This aftershock zone is marked by one of the highest changes in the seismicity rate, exhibiting a delayed peak (about 20 hours after the mainshock) in the rate of aftershocks preceded by a period of very low rate of aftershocks since the mainshock. Subsequently, the rate of aftershocks shows power-law decay with time for about 1 month, and then the aftershock activity approached the pre-earthquake background level. This temporal behavior of the aftershock activity is different from the predicted aftershock decay based on the model of Dieterich (1994, JGR). Instead, our observation is more consistent with the decay rate of aftershocks occurring in the transition zone between locked and stable slip, as simulated numerically by Kaneko and Lapusta (2008, JGR). Our waveform analysis also identifies over 20 repeating microearthquake sequences (or groups of earthquakes with similar waveforms) associated with the 1998 SJB mainshock. The majority of the sequences have events occurring in the first month of the postseismic period. In other words, they reflect short-lived, accelerated repeater recurrences activated by the 1998 SJB mainshock (Templeton et al., 2008, BSSA). This temporal pattern could indicate that these sequences are located at rheological boundaries between stable and unstable sliding in which the coseismic stresses were accumulated, rather than they represent small asperities surrounded by creeping areas. The sequences are localized in the northwest of the 1998 SJB hypocenter. We investigate the source process of the 1998 SJB mainshock using an empirical Green's function (eGf) approach (Dreger, 1994, GRL), finding the northwest directivity of the rupture propagation. We expect larger stress concentrations by the mainshock in the northwest region from the hypocenter in which the number of repeating earthquakes identified were activated, compared with those in southeast region. We evaluate the slip distribution of the 1998 SJB mainshock, by making use of a M 3.1 foreshock as the eGF. Our preliminary result shows the mainshock has a concentrated slip patch with radius on the order of 300-500 m, with peak slip of about 30 cm. The resulting peak stress drop is about 20 MPa. Efforts are ongoing to evaluate a spatial variation in Coulomb stress change based on our fault slip model and to explore the variability of fault frictional property along the San Andreas fault in the SJB region, with the constraints from the spatiotemporal variations of aftershock and repeating earthquake activities.

  17. The green areas of San Juan, Puerto Rico

    Directory of Open Access Journals (Sweden)

    Olga M. Ramos-González

    2014-09-01

    Full Text Available Green areas, also known as green infrastructure or urban vegetation, are vital to urbanites for their critical roles in mitigating urban heat island effects and climate change and for their provision of multiple ecosystem services and aesthetics. Here, I provide a high spatial resolution snapshot of the green cover distribution of the city of San Juan, Puerto Rico, by incorporating the use of morphological spatial pattern analysis (MSPA as a tool to describe the spatial pattern and connectivity of the city’s urban green areas. Analysis of a previously developed IKONOS 4-m spatial resolution classification of the city of San Juan from 2002 revealed a larger area of vegetation (green areas or green infrastructure than previously estimated by moderate spatial resolution imagery. The city as a whole had approximately 42% green cover and 55% impervious surfaces. Although the city appeared greener in its southern upland sector compared to the northern coastal section, where most built-up urban areas occurred (66% impervious surfaces, northern San Juan had 677 ha more green area cover dispersed across the city than the southern component. MSPA revealed that most forest cover occurred as edges and cores, and green areas were most commonly forest cores, with larger predominance in the southern sector of the municipality. In dense, built-up, urban land, most of the green areas occurred in private yards as islets. When compared to other cities across the United States, San Juan was most similar in green cover features to Boston, Massachusetts, and Miami, Florida. Per capita green space for San Juan (122.2 m²/inhabitant was also comparable to these two U.S. cities. This study explores the intra-urban vegetation variation in the city of San Juan, which is generally overlooked by moderate spatial resolution classifications in Puerto Rico. It serves as a starting point for green infrastructure mapping and landscape pattern analysis of the urban green spaces within the city of San Juan. The effectiveness of research and city planning will be further enhanced as a result of this type of finer-scale urban cover exploration.

  18. TRANSFORMACIONES SOCIOGEOGRÁFICAS DEL CENTRO HISTÓRICO DE BARRANQUILLA (CBC: EL CASO DE LA PLAZA DE SAN NICOLÁS

    Directory of Open Access Journals (Sweden)

    Adolfo López Alonso

    2007-07-01

    Full Text Available Abstract In the context of globalization, the urban and spatial changes that have taken place in the last twenty years in the historical center of Barranquilla (CHB, Colombia, merit a careful analysis of impacts that they have generated on abiotic, biotic and antropic subsystems of this spatial arrangement. This paper points out this socio-geographical phenomenon in the CHB, specifically in San Nicolas Place, traditional sector of Barranquilla. It is oriented to holistic research, especially to human geography, and it emphasizes on the geography of the perception and the behavior, both related to cultural geography. The urban changes in San Nicolas Place and their respective spatial impacts are shaped in mental maps built from the theory of spatial perception (Kevin Lynch, from the phenomenological geography (Yi Fu Tuang and from the theory of social representations (Moscovicci. Key-words: urban and spatial changes, globalization, historical center, spatial and socio-geographical impacts, spatial arrangement, human geography, geography of the perception and the behavior, cultural geography, phenomenological geography, social representations theory, mental maps. Résumé Les changements urbains et spatiaux qui ont eu lieu au centre historique de Barranquilla (CHB, Colombie, lors des vingt dernières années dans le cadre de la globalisation, méritent une analyse détaillée des impacts qu’ils ont produit à l’intérieur des sub-systèmes abiotic, biotic et antropic de cet arrangement spatial. Ce travail aborde l’analyse de ce phénomène sociogéographique au CHB, notamment dans la Place de San Nicolas, secteur traditionnel de Barranquilla. L’étude est orientée à la recherche holistique, plus particulièrement à la géographie humaine, mettant l’accent sur la géographie du comportement et de la perception, liées à la géographie culturelle. Les changements urbains et spatiaux de la Place de San Nicolas et leurs respectifs impacts sont modelés dans de cartes mentales construites à partir de la théorie de la perception spatiale (Kevin Lynch, de la théorie de géographie de la phénoménologie (Yi Fu Tuang et de la théorie des représentations sociales (Moscovici.  Mots-clés : changements urbains et spatiaux, globalisation, centre historique, impacts spatiaux et sociogéographiques, arrangement      spatial,  géographie        humaine, géographie du comportement et de la perception, géographie culturelle, géographie de la phénoménologie, théorie des représentations sociales, cartes mentales.

  19. Performance characteristics of the new detector array for the SANS2d instrument on the ISIS spallation neutron source

    International Nuclear Information System (INIS)

    The performance of the new position sensitive neutron detector arrays of the Small Angle Neutron Scattering (SANS) instrument SANS2d is described. The SANS2d instrument is one of the seven instruments currently available for users on the second target station (TS2) of the ISIS spallation neutron source. Since the instrument became operational in 2009 it has used two one metre square multi-wire proportional detectors (MWPC). However, these detectors suffer from a low count rate capability, are easily damaged by excess beam and are then expensive to repair. The new detector arrays each consist of 120 individual position sensitive detector tubes, filled with 15 bar of 3He. Each of the tubes is one metre long and has a diameter of 8mm giving a detector array with an overall area of one square metre. Two such arrays have been built and installed in the SANS2d vacuum tank where they are currently taking user data. For SANS measurements operation of the detector within a vacuum is essential in order to reduce air scattering. A novel, fully engineered approach has been utilised to ensure that the high voltage connections and preamps are located inside the SANS2d vacuum tank at atmospheric pressure, within air tubes and air boxes respectively. The signal processing electronics and data acquisition system are located remotely in a counting house outside of the blockhouse. This allows easy access for maintenance purposes, without the need to remove the detectors from the vacuum tank. The design will be described in detail. A position resolution of 8mm FWHM or less has been measured along the length of the tubes. The initial measurements taken from a standard sample indicate that whilst the detector arrays themselves only represent a moderate improvement in overall detection efficiency (? 20%), compared to the previous detector, the count rate capability is increased by a factor of 100. A significant advantage of the new array is the ability to change a single tube in situ within approximately one day with a relatively small staff effort. The results obtained from the first user trials are reported

  20. Performance characteristics of the new detector array for the SANS2d instrument on the ISIS spallation neutron source

    Science.gov (United States)

    Duxbury, D.; Heenan, R.; McPhail, D.; Raspino, D.; Rhodes, N.; Rogers, S.; Schooneveld, E.; Spill, E.; Terry, A.

    2014-12-01

    The performance of the new position sensitive neutron detector arrays of the Small Angle Neutron Scattering (SANS) instrument SANS2d is described. The SANS2d instrument is one of the seven instruments currently available for users on the second target station (TS2) of the ISIS spallation neutron source. Since the instrument became operational in 2009 it has used two one metre square multi-wire proportional detectors (MWPC). However, these detectors suffer from a low count rate capability, are easily damaged by excess beam and are then expensive to repair. The new detector arrays each consist of 120 individual position sensitive detector tubes, filled with 15 bar of 3He. Each of the tubes is one metre long and has a diameter of 8mm giving a detector array with an overall area of one square metre. Two such arrays have been built and installed in the SANS2d vacuum tank where they are currently taking user data. For SANS measurements operation of the detector within a vacuum is essential in order to reduce air scattering. A novel, fully engineered approach has been utilised to ensure that the high voltage connections and preamps are located inside the SANS2d vacuum tank at atmospheric pressure, within air tubes and air boxes respectively. The signal processing electronics and data acquisition system are located remotely in a counting house outside of the blockhouse. This allows easy access for maintenance purposes, without the need to remove the detectors from the vacuum tank. The design will be described in detail. A position resolution of 8mm FWHM or less has been measured along the length of the tubes. The initial measurements taken from a standard sample indicate that whilst the detector arrays themselves only represent a moderate improvement in overall detection efficiency (~ 20%), compared to the previous detector, the count rate capability is increased by a factor of 100. A significant advantage of the new array is the ability to change a single tube in situ within approximately one day with a relatively small staff effort. The results obtained from the first user trials are reported.

  1. Geology and oil and gas assessment of the Fruitland Total Petroleum System, San Juan Basin, New Mexico and Colorado: Chapter 6 in Geology and Oil and Gas Assessment of the Fruitland Total Petroleum System, San Juan Basin, New Mexico and Colorado

    Science.gov (United States)

    Ridgley, J.L.; Condon, S.M.; Hatch, J.R.

    2013-01-01

    The Fruitland Total Petroleum System (TPS) of the San Juan Basin Province includes all genetically related hydrocarbons generated from coal beds and organic-rich shales in the Cretaceous Fruitland Formation. Coal beds are considered to be the primary source of the hydrocarbons. Potential reservoir rocks in the Fruitland TPS consist of the Upper Cretaceous Pictured Cliffs Sandstone, Fruitland Formation (both sandstone and coal beds), and the Farmington Sandstone Member of the Kirtland Formation, and the Tertiary Ojo Alamo Sandstone, and Animas, Nacimiento, and San Jose Formations.

  2. Programas sociales y bienestar social en comunidades oaxaqueñas: San Miguel Achiutla y San Ildefonso Sola

    Directory of Open Access Journals (Sweden)

    Mireya Carmina Cruz Aragón

    2013-05-01

    Full Text Available Estudio realizado en dos comunidades del estado de Oaxaca, San Ildefonso Sola y San Miguel Achiutla, pertenecientes a la Región Sierra Sur y Mixteca respectivamente. La primera está conformada por población mestiza y la segunda por indígena mixtecos. Ambas comunidades presentan alto grado de marginación, y reflejan diversas carencias materiales que influyen negativamente en su bienestar, son comunidades pobres. Dedicados principalmente a la agricultura de subsistencia, los pobladores obtienen ingresos monetarios de otras actividades como venta de productos de palma, pan, tortillas, mezcal (estas actividades se han realizado en las comunidades de manera tradicional, han sido heredadas de generación en generación, productos de traspatio (la mayoría de los hogares cultivan frutas o verduras de uso diario en la cocina o para remedios caseros, también crían animales que contribuyen en sus actividades como burros, mulas, caballos o bueyes, y otros que les proporcionan alimentos o son alimento como gallinas, cerdos, chivos, borregos, etc. y comercialización de productos de abarrotes, en pocos casos realizan algún tipo de trabajo asalariado, sin embargo a pesar que sus fuentes de ingreso son diversas, estos ingresos que obtienen resultan en su mayoría insuficientes para satisfacer sus necesidades básicas. Son estas comunidades a las que van dirigidos los apoyos de diversos programas sociales, cuyo objetivo es contribuir en la superación de la pobreza, los programas que se refieren aquí son Oportunidades, Apoyo Alimentario y, 70 y más. Por tanto el propósito de la investigación es estudiar la incidencia que tienen los programas sociales que llegan a los hogares de las comunidades referidas anteriormente, sobre su nivel de bienestar. Se ha obtenido información de fuentes oficiales como INEGI (Instituto Nacional de Estadística y Geografía, CONAPO (Consejo Nacional de Población y SEDESOL (Secretaría de Desarrollo Social, así como de trabajo de campo realizado en ambas comunidades, aplicando cuestionarios y realizando observación directa. Al conocer en que proporción influyen los programas sociales sobre el bienestar social de los hogares, se podrá conocer que tan útiles son los recursos que destina el Estado para la superación de la pobreza, y si son efectivamente destinados para lo que fueron otorgados o se utilizan para cubrir otros gastos de los hogares en la satisfacción de necesidades distintas.

  3. Study of vibrations and stabilization of linear collider final doublets at the sub-nanometer scale; Etude des vibrations et de la stabilisation a l'echelle sous-nanometrique des doublets finaux d'un collisionneur lineaire

    Energy Technology Data Exchange (ETDEWEB)

    Bolzon, B

    2007-11-15

    CLIC is one of the current projects of high energy linear colliders. Vertical beam sizes of 0.7 nm at the time of the collision and fast ground motion of a few nanometers impose an active stabilization of the final doublets at a fifth of nanometer above 4 Hz. The majority of my work concerned vibrations and active stabilization study of cantilever and slim beams in order to be representative of the final doublets of CLIC. In a first part, measured performances of different types of vibration sensors associated to an appropriate instrumentation showed that accurate measurements of ground motion are possible from 0.1 Hz up to 2000 Hz on a quiet site. Also, electrochemical sensors answering a priori the specifications of CLIC can be incorporated in the active stabilization at a fifth of nanometer. In a second part, an experimental and numerical study of beam vibrations enabled to validate the efficiency of the numerical prediction incorporated then in the simulation of the active stabilization. Also, a study of the impact of ground motion and of acoustic noise on beam vibrations showed that an active stabilization is necessary at least up to 1000 Hz. In a third part, results on the active stabilization of a beam at its two first resonances are shown down to amplitudes of a tenth of nanometer above 4 Hz by using in parallel a commercial system performing passive and active stabilization of the clamping. The last part is related to a study of a support for the final doublets of a linear collider prototype in phase of finalization, the ATF2 prototype. This work showed that relative motion between this support and the ground is below imposed tolerances (6 nm above 0.1 Hz) with appropriate boundary conditions. (author)

  4. San Miguel County 2010 Census Block Groups

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  5. San Juan County 2010 Census Block Groups

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  6. San Miguel County Current Area Landmark

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  7. San Juan County Current Area Landmark

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  8. San Juan County 2010 Census Blocks

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  9. San Miguel County 2010 Census Blocks

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  10. San Juan County 2010 Census Tracts

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  11. San Juan County 2010 Census Roads

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  12. San Miguel County 2010 Census Roads

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  13. San Miguel County 2010 Census Tracts

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census...

  14. Uranium ore rolls in Westwater Canyon sandstone, San Juan Basin, New Mexico

    International Nuclear Information System (INIS)

    Recent relatively deep uranium-exploration drilling in the Nose Rock area, San Juan Basin, McKinley County, New Mexico, has resulted in the discovery of previously unrecognized uranium ore rolls in gray, unoxidized Westwater Canyon Sandstone of the Morrison Formation. Both the Nose Rock ores and the primary Ambrosia Lake uranium ores were emplaced during the Late Jurassic-Early Cretaceous erosional interval under the same geologic conditions by the same geochemical-cell process. The red, altered interior ground resulting from the geochemical-cell process has been re-reduced by the subsequent entry of reductants into the formation. The original roll form of the Ambrosia Lake orebodies has been obscured and modified by redistribution related to the present-day active redox interface interweaving with the Ambrosia Lake ores

  15. Surveillance of Avian Paramyxovirus in Migratory Waterfowls in the San-in Region of Western Japan from 2006 to 2012

    OpenAIRE

    UMALI, Dennis V.; Ito, Hiroshi; KATOH, Hiromitsu; Ito, Toshihiro

    2013-01-01

    Relatively little is known about the distribution of avian paramyxoviruses (APMVs) among wild birds in Japan. Surveillance of APMV in migratory waterfowl was conducted in the San-in region of western Japan during winters of 2006 to 2012. A total of 16 avian paramyxoviruses consisting of 3 lentogenic Newcastle disease viruses (NDVs), 12 APMV-4 and 1 APMV-8 were isolated from 1,967 wild-bird fecal samples. The results show that NDV and APMV-4 are relatively widely distributed amo...

  16. Como güelfos y gibelinos: los colegios de San Bernardo y San Antonio Abad en el Cuzco durante el siglo XVII

    Directory of Open Access Journals (Sweden)

    Guibovich Pérez, Pedro M

    2006-04-01

    Full Text Available This article deals with the conflicts that involved the San Bernardo and San Antonio schools all along the seventeenth century. The author proposes a new approach to explain the social history of colonial Cuzco. He mantains that the root of the confrontation has to do with the privileges that enjoy the jesuits in the provision of academical degrees, a basic requirement to obtain appointments in the civil and eclesiastical administration. To understand this social dinamic, he reconstructs the institutional history of both schools, and reveals the interests that defend the main actors of this secular conflict.

    Los conflictos que enfrentaron a los colegios de San Bernardo y San Antonio Abad a lo largo del siglo XVII es el tema central de estudio de este ensayo. El autor propone una nueva lectura a este episodio de la historia social del Cuzco colonial. Sostiene que en la raíz de los enfrentamientos estuvo el privilegio que gozaban los jesuitas para la concesión de grados académicos, requisitos fundamentales para obtener cargos en la administración civil y eclesiástica. Para entender la dinámica social, el autor reconstruye la historia institucional de los colegios y los intereses en juego de los principales protagonistas del secular conflicto.

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

    Scientific Electronic Library Online (English)

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

    2006-04-01

    Full Text Available OBJETIVO: Determinar la seroprevalencia de sífilis en mujeres embarazadas. MATERIAL Y MÉTODOS: Encuesta seroepidemiológica en 1 857 mujeres que acudieron para la atención del parto a un hospital general de la ciudad de San Luis Potosí. RESULTADOS: Se diagnosticó sífilis en cinco (0.27%) mujeres al m [...] omento del parto. Los factores maternos asociados con una probabilidad superior de presentar sífilis incluyeron mayor edad materna, mayor número de embarazos previos y vivir en unión libre con su pareja. CONCLUSIONES: El número de recién nacidos expuestos a sífilis durante el embarazo, en la ciudad de San Luis Potosí, está subestimado. Los resultados de este estudio sustentan la necesidad de identificar, al momento del parto, a madres infectadas con sífilis. Abstract in english OBJECTIVE: To determine the seroprevalence of syphilis in pregnant women. METHODS: A seroepidemiologic survey was conducted in 1 857 women giving birth at a general hospital in the city of San Luis Potosi, Mexico. RESULTS: Five women (0.27 %) were diagnosed with syphilis at the time of delivery. Mat [...] ernal factors associated with a greater likelihood of syphilis included older age, a higher number of pregnancies and living out of wedlock. CONCLUSIONS: The number of new borns exposed to syphilis during pregnancy in San Luis Potosi is underestimated. The results of this study support the need to identify syphilis in infected mothers at the time of delivery.

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

    Directory of Open Access Journals (Sweden)

    Daniel E Noyola

    2006-04-01

    Full Text Available OBJETIVO: Determinar la seroprevalencia de sífilis en mujeres embarazadas. MATERIAL Y MÉTODOS: Encuesta seroepidemiológica en 1 857 mujeres que acudieron para la atención del parto a un hospital general de la ciudad de San Luis Potosí. RESULTADOS: Se diagnosticó sífilis en cinco (0.27% mujeres al momento del parto. Los factores maternos asociados con una probabilidad superior de presentar sífilis incluyeron mayor edad materna, mayor número de embarazos previos y vivir en unión libre con su pareja. CONCLUSIONES: El número de recién nacidos expuestos a sífilis durante el embarazo, en la ciudad de San Luis Potosí, está subestimado. Los resultados de este estudio sustentan la necesidad de identificar, al momento del parto, a madres infectadas con sífilis.OBJECTIVE: To determine the seroprevalence of syphilis in pregnant women. METHODS: A seroepidemiologic survey was conducted in 1 857 women giving birth at a general hospital in the city of San Luis Potosi, Mexico. RESULTS: Five women (0.27 % were diagnosed with syphilis at the time of delivery. Maternal factors associated with a greater likelihood of syphilis included older age, a higher number of pregnancies and living out of wedlock. CONCLUSIONS: The number of new borns exposed to syphilis during pregnancy in San Luis Potosi is underestimated. The results of this study support the need to identify syphilis in infected mothers at the time of delivery.

  19. A multi-decade time series of kelp forest community structure at San Nicolas Island, California

    Science.gov (United States)

    Lafferty, Kevin D.; Kenner, Michael C.; Estes, James A.; Tinker, M. Tim; Bodkin, James L.; Cowen, Robert K.; Harrold, Christopher; Novak, Mark; Rassweiler, Andrew; Reed, Daniel C.

    2013-01-01

    San Nicolas Island is surrounded by broad areas of shallow subtidal habitat, characterized by dynamic kelp forest communities that undergo dramatic and abrupt shifts in community composition. Although these reefs are fished, the physical isolation of the island means that they receive less impact from human activities than most reefs in Southern California, making San Nicolas an ideal place to evaluate alternative theories about the dynamics of these communities. Here we present monitoring data from seven sampling stations surrounding the island, including data on fish, invertebrate, and algal abundance. These data are unusual among subtidal monitoring data sets in that they combine relatively frequent sampling (twice per year) with an exceptionally long time series (since 1980). Other outstanding qualities of the data set are the high taxonomic resolution captured and the monitoring of permanent quadrats and swaths where the history of the community structure at specific locations has been recorded through time. Finally, the data span a period that includes two of the strongest ENSO events on record, a major shift in the Pacific decadal oscillation, and the reintroduction of sea otters to the island in 1987 after at least 150 years of absence. These events provide opportunities to evaluate the effects of bottom-up forcing, top-down control, and physical disturbance on shallow rocky reef communities.

  20. Con la cruz y con el aguardiente: la empresa vitivinícola Jesuita en el San Juan Colonial

    Scientific Electronic Library Online (English)

    Celia, López-Chávez.

    Full Text Available El artículo analiza la actividad vitivinícola de los jesuitas en San Juan (Argentina), durante el período colonial. Se presentan tres aspectos relacionados a la producción de vino y aguardiente: la formación de la propiedad, la comercialización del producto y la mano de obra esclava y asalariada. An [...] te la falta de fuentes oficiales o privadas que permitan reconstruir la vida económica de la region y, en particular, la empresa vitivinícola, las fuentes jesuitas adquieren un particular valor para conocer dichas actividades. El objetivo es que, a través del estudio de la empresa jesuita, se puedan extraer conclusiones que permitan conocer mejor el desarrollo de la empresa vitivinícola en la región y sus conexiones comerciales, especialmente con el mercado de Buenos Aires Abstract in english This paper analyzes the viticulture activity of Jesuits in San Juan (Argentina) during the colonial period. Three aspects related to the production of wine and brandy, are presented: the formation of property, the trade of products, and slave as well as free labor forces. In light of the fact that t [...] here is a lack of official and private sources that allows the reconstruction of the region's economic life, especially, the viticulture enterprise, Jesuit sources become of great value to learn of those activities. The objective is that, through the study of the Jesuit enterprise, it is possible to get conclusions that will permit to better understand the development of viticulture in the region along with its commercial connections, especially with the Buenos Aires market

  1. Con la cruz y con el aguardiente: la empresa vitivinícola Jesuita en el San Juan Colonial

    Directory of Open Access Journals (Sweden)

    Celia López-Chávez

    2005-01-01

    Full Text Available El artículo analiza la actividad vitivinícola de los jesuitas en San Juan (Argentina, durante el período colonial. Se presentan tres aspectos relacionados a la producción de vino y aguardiente: la formación de la propiedad, la comercialización del producto y la mano de obra esclava y asalariada. Ante la falta de fuentes oficiales o privadas que permitan reconstruir la vida económica de la region y, en particular, la empresa vitivinícola, las fuentes jesuitas adquieren un particular valor para conocer dichas actividades. El objetivo es que, a través del estudio de la empresa jesuita, se puedan extraer conclusiones que permitan conocer mejor el desarrollo de la empresa vitivinícola en la región y sus conexiones comerciales, especialmente con el mercado de Buenos AiresThis paper analyzes the viticulture activity of Jesuits in San Juan (Argentina during the colonial period. Three aspects related to the production of wine and brandy, are presented: the formation of property, the trade of products, and slave as well as free labor forces. In light of the fact that there is a lack of official and private sources that allows the reconstruction of the region's economic life, especially, the viticulture enterprise, Jesuit sources become of great value to learn of those activities. The objective is that, through the study of the Jesuit enterprise, it is possible to get conclusions that will permit to better understand the development of viticulture in the region along with its commercial connections, especially with the Buenos Aires market

  2. Use of digital multispectral videography to assess seagrass distribution in San Quintin Bay, Baja California, Mexico

    Science.gov (United States)

    Ward, D.H.; Tibbitts, T.L.; Morton, Alexandra; Carrera-Gonzalez, Eduardo; Kempka, R.

    2004-01-01

    Apparent threats to the spatial distribution of seagrass in San Quinti??n Bay prompted us to make a detailed assessment of habitats in the bay. Six coastal habitats and three seagrass subclasses were delineated using airborne digital multispectral videography (DMSV), Eelgrass, Zostera marina, was the predominant seagrass and covered 40% (1949 ha) of the areal extent of the bay in 1999. Eelgrass grew over a wide range of tidal depths from about -3.0 in mean lower low water (MLLW) to about 1.0 m MLLW, but greatest spatial extent occurred in intertidal areas -0.6 m to 1.0 m MLLW. Exposed-continuous (i.e., high density) eelgrass was the most abundant habitat in the bay. Widgeongrass, Ruppia maritima, was the only other seagrass present and covered 3% (136 ha) of the areal extent of the entire bay. Widgeongrass grew in single species stands in the upper intertidal (??? 0.4 MLLW) and intermixed with eelgrass at lower tidal depths. Overall accuracy of the six habitat classes and three subclasses in the DMSV map was relatively high at 84%. Our detailed map of San Quintin Bay can be used in future change detection analyses to monitor the health of seagrasses in the bay.

  3. Loss of Power and Water Hammer Event at San Onofre, Unit 1, on November 21, 1985

    International Nuclear Information System (INIS)

    On November 21, 1985, Southern California Edison's Onofre Nuclear Generating Station, Unit 1, located south of San Clemente, California, experienced a partial loss of inplant ac electrical power while the plant was operating at 60% power. Following a manual reactor trip, the plant lost all inplant ac power for 4 minutes and experienced a severe incidence of water hammer in the feedwater system which caused a leak, damaged plant equipment, and challenged the integrity of the plant's heat sink. The most significant aspect of the event involved the failure of five safety-related check valves in the feed-water system whose failure occurred in less than year, without detection, and jeopardized the integrity of safety systems. The event involved a number of equipment malfunctions, operator errors, and procedural deficiencies. This report documents the findings and conclusions of an NRC Incident Investigation Team sent to San Onofre by the NRC Executive Director for Operations in conformance with NRC's recently established Incident Investigation Program

  4. Effective application of monitoring information: the case of San Francisco Bay.

    Science.gov (United States)

    Hoenicke, Rainer; Davis, Jay A; Gunther, Andrew; Mumley, Thomas E; Abu-Saba, Khalil; Taberski, Karen

    2003-01-01

    The San Francisco Estuary Regional Monitoring Program (RMP) for Trace Substances is an innovative partnership among a regulatory agency, more than 70 regulated entities, and an independent scientific organization. The institutional arrangement behind the RMP has made the regulatory system increasingly responsive to emerging management needs, particularly with regard to the development of total maximum daily loads and ecosystem impairment assessment. Through multiagency partnerships within and outside the RMP institutional structure, major information gaps for several pollutants of concern have been narrowed, resulting in a successful consensus-based regulatory approach to managing copper and nickel mass inputs into the Estuary. Short-term research efforts, based upon monitoring results, helped identify the most cost-effective control and remediation options for various bioaccumulative substances. Additionally, adaptive changes to the monitoring program documented the existence of widespread aquatic toxicity in the Estuary that is apparently due to pesticide runoff from agricultural and urban areas. One of the most important contributions of this collaborative monitoring program is the deliberate and systematic adjustment of management and research questions that serve to influence and add relevance to the overall research agenda related to San Francisco Estuary ecosystem assessment. PMID:12620000

  5. ENVIRONMENTAL CHARACTERISTICS OF SAN MATÍAS GULF OBTAINED FROM LANDSAT-TM AND ETM+ DATA

    Scientific Electronic Library Online (English)

    Domingo A, Gagliardini; Andrés L, Rivas.

    Full Text Available The San Matías Gulf, located between 40 47' S and 42 13' S on the Atlantic coast of South America, with an area of approximately 18 000 km², is the second largest in Argentina. This gulf has been studied by means of historical data obtained in oceanographic campaigns carried out before 1990 and with [...] satellite images of low-resolution (1000 m) NOAA-AVHRR obtained from 1985. The analysis of this information permitted to infer some environmental characteristics related to temperature, salinity, productivity and circulation. The objective of the present work is to analyze LANDSAT-TM and ETM+ data from 1997-2003. Approximately 30 free of clouds images, obtained in different times of the year, were processed. The thermal channel allowed to obtain a detailed distribution of surface temperature, to identify thermal fronts and to analyze its variability along the year. Also, this channel and channel 1 permit to observe the influence, in the southern part of the gulf, of the water coming from the continental shelf and San José Gulf. The results obtained did not only contributed to corroborate the environmental characteristics already inferred previously from cruise data, but also, to identify others, so far unknown

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

    International Nuclear Information System (INIS)

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

  7. Downregulation of Nrf2 and HO-1 expression contributes to oxidative stress in type 2 diabetes mellitus: A study in Juana Koslay City, San Luis, Argentina

    OpenAIRE

    Gimenez, María S.; Ojeda, Marta S; Lucas Santillán; Roberto Lucero; Irma González; Susana Siewert

    2013-01-01

    Oxidative stress is associated with diabetes mellitus, a condition characterized by increased prevalence and progression rate of cardiovascular disease. NFE2-related factor 2 (Nrf2) is a master regulator of cellular detoxification responses and redox status. The aim of this study was to examine associations between type 2 Diabetes Mellitus (T2DM), oxidative stress and the expression of NFE2-related factor 2 (Nrf2) in a population of diabetic patients living in Juana Koslay City, San Luis, Ar...

  8. The relationship between carbonate facies, volcanic rocks and plant remains in a late Palaeozoic lacustrine system (San Ignacio Fm, Frontal Cordillera, San Juan province, Argentina)

    Science.gov (United States)

    Busquets, P.; Méndez-Bedia, I.; Gallastegui, G.; Colombo, F.; Cardó, R.; Limarino, O.; Heredia, N.; Césari, S. N.

    2013-07-01

    The San Ignacio Fm, a late Palaeozoic foreland basin succession that crops out in the Frontal Cordillera (Argentinean Andes), contains lacustrine microbial carbonates and volcanic rocks. Modification by extensive pedogenic processes contributed to the massive aspect of the calcareous beds. Most of the volcanic deposits in the San Ignacio Fm consist of pyroclastic rocks and resedimented volcaniclastic deposits. Less frequent lava flows produced during effusive eruptions led to the generation of tabular layers of fine-grained, greenish or grey andesites, trachytes and dacites. Pyroclastic flow deposits correspond mainly to welded ignimbrites made up of former glassy pyroclasts devitrified to microcrystalline groundmass, scarce crystals of euhedral plagioclase, quartz and K-feldspar, opaque minerals, aggregates of fine-grained phyllosilicates and fiammes defining a bedding-parallel foliation generated by welding or diagenetic compaction. Widespread silicified and silica-permineralized plant remains and carbonate mud clasts are found, usually embedded within the ignimbrites. The carbonate sequences are underlain and overlain by volcanic rocks. The carbonate sequence bottoms are mostly gradational, while their tops are usually sharp. The lower part of the carbonate sequences is made up of mud which appear progressively, filling interstices in the top of the underlying volcanic rocks. They gradually become more abundant until they form the whole of the rock fabric. Carbonate on volcanic sandstones and pyroclastic deposits occur, with the nucleation of micritic carbonate and associated production of pyrite. Cyanobacteria, which formed the locus of mineral precipitation, were related with this nucleation. The growth of some of the algal mounds was halted by the progressive accumulation of volcanic ash particles, but in most cases the upper boundary is sharp and suddenly truncated by pyroclastic flows or volcanic avalanches. These pyroclastic flows partially destroyed the carbonate beds and palaeosols. Microbial carbonate clasts, silicified and silica-permineralized tree trunks, log stumps and other plant remains such as small branches and small roots inside pieces of wood (interpreted as fragments of nurse logs) are commonly found embedded within the ignimbrites. The study of the carbonate and volcanic rocks of the San Ignacio Fm allows the authors to propose a facies model that increases our understanding of lacustrine environments that developed in volcanic settings.

  9. Constraints on the stress state of the San Andreas Fault with analysis based on core and cuttings from San Andreas Fault Observatory at Depth (SAFOD) drilling phases 1 and 2

    Science.gov (United States)

    Tembe, S.; Lockner, D.; Wong, T.-F.

    2009-01-01

    Analysis of field data has led different investigators to conclude that the San Andreas Fault (SAF) has either anomalously low frictional sliding strength (?? 0.6). Arguments for the apparent weakness of the SAF generally hinge on conceptual models involving intrinsically weak gouge or elevated pore pressure within the fault zone. Some models assert that weak gouge and/or high pore pressure exist under static conditions while others consider strength loss or fluid pressure increase due to rapid coseismic fault slip. The present paper is composed of three parts. First, we develop generalized equations, based on and consistent with the Rice (1992) fault zone model to relate stress orientation and magnitude to depth-dependent coefficient of friction and pore pressure. Second, we present temperature-and pressure-dependent friction measurements from wet illite-rich fault gouge extracted from San Andreas Fault Observatory at Depth (SAFOD) phase 1 core samples and from weak minerals associated with the San Andreas Fault. Third, we reevaluate the state of stress on the San Andreas Fault in light of new constraints imposed by SAFOD borehole data. Pure talc (?????0.1) had the lowest strength considered and was sufficiently weak to satisfy weak fault heat flow and stress orientation constraints with hydrostatic pore pressure. Other fault gouges showed a systematic increase in strength with increasing temperature and pressure. In this case, heat flow and stress orientation constraints would require elevated pore pressure and, in some cases, fault zone pore pressure in excess of vertical stress. Copyright 2009 by the American Geophysical Union.

  10. Relativity made relatively easy

    CERN Document Server

    Steane, Andrew M

    2012-01-01

    Relativity Made Relatively Easy presents an extensive study of Special Relativity and a gentle (but exact) introduction to General Relativity for undergraduate students of physics. Assuming almost no prior knowledge, it allows the student to handle all the Relativity needed for a university course, with explanations as simple, thorough, and engaging as possible.The aim is to make manageable what would otherwise be regarded as hard; to make derivations as simple as possible and physical ideas as transparent as possible. Lorentz invariants and four-vectors are introduced early on, but tensor not

  11. Incidencia de sangrado digestivo en la UCI del Hospital Universitario San Ignacio / Incidence of digestive bleeding in ICU patients of San Ignacio University Hospital

    Scientific Electronic Library Online (English)

    Vivian Paola, Delgadillo Sánchez; Darío, Londoño Trujillo; Jaime, Alvarado Bestene.

    2009-06-01

    Full Text Available Objetivos: calcular la incidencia de sangrado gastrointestinal significativo y no significativo en pacientes de la Unidad de Cuidado Intensivo del Hospital San Ignacio, admitidos entre agosto y noviembre de 2007 y la mortalidad relacionada con este. Diseño del estudio: estudio descriptivo de inciden [...] cia. Lugar del estudio: Unidad de Cuidado Intensivo del Hospital Universitario San Ignacio. Pacientes: mayores de 16 años que ingresan a la unidad de cuidado intensivo, con una estancia mayor de 24 horas y que no ingresen por hemorragia digestiva o hayan recibido tratamiento previo con cualquier tipo de inhibidor de bomba de protones, sucralfate, antiH2, o antiácido. Intervenciones: ninguna Mediciones: sangrado gastrointestinal significativo, sangrado gastrointestinal no significativo, muerte por sangrado gastrointestinal. Resultados: muestra recolectada de 524 sujetos. Promedio de edad 57 años (máx. 94-min 17 años), 236 mujeres y 285 hombres. Incidencia acumulada de sangrado gastrointestinal 3.44%. Incidencia de sangrado significativo 2.6%. Incidencia de sangrado no significativo 0.76%. Mortalidad global 9.34%, mortalidad por sangrado 0%. Conclusiones: la incidencia de sangrado gastrointestinal significativo se encuentra entre rangos mencionados en la literatura, algo inferior a algunos estudios, lo cual podría estar en relación con el alto porcentaje de profilaxis manejado. La incidencia de sangrado gastrointestinal no significativo es baja comparativamente con la mencionada en otros estudios; sin embargo, se encontraron deficiencias en el registro de datos en la historia clínica, y muchos pacientes recibieron profilaxis o tratamiento aún sin tener un alto riesgo o claro diagnóstico del origen del sangrado. La mortalidad global fue de 49 pacientes (9.35%), ninguna atribuible a sangrado gastrointestinal. Abstract in english Aim: to estimate the incidence of significant and non-significant gastrointestinal bleeding in patients of the Intensive Care Unit at Hospital San Ignacio, admitted between August and November of 2007 as well as the related mortality. Study design: descriptive study of incidence. Place of the Study: [...] University Hospital San Ignacio. Patients: patients older than 16 years admitted to the Intensive Care Unit due to a condition different from digestive hemorrhage, with a minimum stay of 24 hours and who had not received previous treatment or prophylaxis for acid peptic disease. Interventions: none. Measurements: significant gastrointestinal bleeding, Non-significant gastrointestinal bleeding, Death caused by gastrointestinal bleeding. Results: collected sample: 524 subjects with an age range of 17 to 94 years, a mean of 57 years, 236 women and 285 men. Accumulated incidence of gastrointestinal bleeding: 3.44%. Incidence of significant bleeding 2, 6%. Incidence of non-significant bleeding 0.76%. Global mortality 9.34%. Mortality caused by bleeding 0%. Conclusions: the incidence of significant gastrointestinal bleeding in this setting was similar to most of the studies we reviewed and inferior to one of the studies, which can be related to the high percentage of handled prophylaxis. The incidence of non-significant gastrointestinal bleeding was low in comparison to other studies. We found deficiencies in the registries and many patients received prophylaxis or treatment without having high risk or etiological diagnosis. The global mortality of the sample was 9.35% not attributable to gastrointestinal bleeding.

  12. Incidencia de sangrado digestivo en la UCI del Hospital Universitario San Ignacio Incidence of digestive bleeding in ICU patients of San Ignacio University Hospital

    Directory of Open Access Journals (Sweden)

    Vivian Paola Delgadillo Sánchez

    2009-06-01

    Full Text Available Objetivos: calcular la incidencia de sangrado gastrointestinal significativo y no significativo en pacientes de la Unidad de Cuidado Intensivo del Hospital San Ignacio, admitidos entre agosto y noviembre de 2007 y la mortalidad relacionada con este. Diseño del estudio: estudio descriptivo de incidencia. Lugar del estudio: Unidad de Cuidado Intensivo del Hospital Universitario San Ignacio. Pacientes: mayores de 16 años que ingresan a la unidad de cuidado intensivo, con una estancia mayor de 24 horas y que no ingresen por hemorragia digestiva o hayan recibido tratamiento previo con cualquier tipo de inhibidor de bomba de protones, sucralfate, antiH2, o antiácido. Intervenciones: ninguna Mediciones: sangrado gastrointestinal significativo, sangrado gastrointestinal no significativo, muerte por sangrado gastrointestinal. Resultados: muestra recolectada de 524 sujetos. Promedio de edad 57 años (máx. 94-min 17 años, 236 mujeres y 285 hombres. Incidencia acumulada de sangrado gastrointestinal 3.44%. Incidencia de sangrado significativo 2.6%. Incidencia de sangrado no significativo 0.76%. Mortalidad global 9.34%, mortalidad por sangrado 0%. Conclusiones: la incidencia de sangrado gastrointestinal significativo se encuentra entre rangos mencionados en la literatura, algo inferior a algunos estudios, lo cual podría estar en relación con el alto porcentaje de profilaxis manejado. La incidencia de sangrado gastrointestinal no significativo es baja comparativamente con la mencionada en otros estudios; sin embargo, se encontraron deficiencias en el registro de datos en la historia clínica, y muchos pacientes recibieron profilaxis o tratamiento aún sin tener un alto riesgo o claro diagnóstico del origen del sangrado. La mortalidad global fue de 49 pacientes (9.35%, ninguna atribuible a sangrado gastrointestinal.Aim: to estimate the incidence of significant and non-significant gastrointestinal bleeding in patients of the Intensive Care Unit at Hospital San Ignacio, admitted between August and November of 2007 as well as the related mortality. Study design: descriptive study of incidence. Place of the Study: University Hospital San Ignacio. Patients: patients older than 16 years admitted to the Intensive Care Unit due to a condition different from digestive hemorrhage, with a minimum stay of 24 hours and who had not received previous treatment or prophylaxis for acid peptic disease. Interventions: none. Measurements: significant gastrointestinal bleeding, Non-significant gastrointestinal bleeding, Death caused by gastrointestinal bleeding. Results: collected sample: 524 subjects with an age range of 17 to 94 years, a mean of 57 years, 236 women and 285 men. Accumulated incidence of gastrointestinal bleeding: 3.44%. Incidence of significant bleeding 2, 6%. Incidence of non-significant bleeding 0.76%. Global mortality 9.34%. Mortality caused by bleeding 0%. Conclusions: the incidence of significant gastrointestinal bleeding in this setting was similar to most of the studies we reviewed and inferior to one of the studies, which can be related to the high percentage of handled prophylaxis. The incidence of non-significant gastrointestinal bleeding was low in comparison to other studies. We found deficiencies in the registries and many patients received prophylaxis or treatment without having high risk or etiological diagnosis. The global mortality of the sample was 9.35% not attributable to gastrointestinal bleeding.

  13. Factores de riesgos asociados a la infección por dengue en San Mateo, Anzoátegui, Venezuela / Dengue infection associated-risk factors with in San Mateo, Anzoátegui, Venezuela

    Scientific Electronic Library Online (English)

    Antulio, Hoyos Rivera; Antonio, Pérez Rodríguez; Edelsys, Hernández Meléndrez.

    2011-09-01

    Full Text Available INTRODUCCIÓN: El conocimiento de los factores de riesgo asociados a la infección por dengue en la localidad, permite al médico de familia diseñar y ejecutar estrategias de intervención comunitaria eficaces, ya que parten de un diagnóstico integral que es diferente en cada región. OBJETIVOS: Determin [...] ar los factores de riesgos asociados a la infección por dengue en San Mateo, Anzoátegui, Venezuela. MÉTODOS: El universo estuvo constituido por 15 000 habitantes de la localidad de San Mateo, municipio Libertad, Anzoátegui en la República Bolivariana de Venezuela, en el periodo comprendido entre mayo de 2007 y mayo de 2008. Se realizó un análisis bivariado de los factores de riesgo asociados, para estimar el riesgo relativo, y una regresión logística multivariada para estimar el valor del Odds Ratio. RESULTADOS: De acuerdo con los resultados en el análisis bivariado y multivariado de factores de riesgo, asociados en los casos de infección reciente por dengue inmunoglobulina M positivo y los casos dengue, no se encontró asociación en ninguna de las variables en estudio, de acuerdo con la hipótesis planteada; con excepción del bajo nivel de conocimiento en la población acerca de la enfermedad, particularmente en cuanto a los síntomas, mecanismos de transmisión, agente causal, y medidas de prevención. CONCLUSIONES: La alta prevalencia de dengue en esta localidad, es el resultado del desconocimiento acerca de la enfermedad y de la existencia del vector; esta última constituye la condición básica para su transmisión. Su presencia es un indicador indirecto de las malas condiciones higiénico-sanitarias de la población y de la existencia de criaderos en los hogares. Abstract in english INTRODUCTION: The knowledge of dengue infection associated-risk factors in place, allows that family physician may to design and to perform effective community intervention strategies, since it is from an integral diagnosis which is different in each region. OBJECTIVE: To determine the dengue infect [...] ion associated-risk factors in San Mateo, Anzoátegui, Venezuela. METHODS: Universe included 15 000 inhabitants of San Mateo, Libertad municipality, Anzoátegui in Bolivarian Republic of Venezuela from May, 2007 to May, 2008. A bi-varied analysis was made related to associated risk factors to estimate the relative risk and a multivariate logistic regression analysis to estimate the Odds Ratio value. RESULTS: According the results from the bi-varied and multi-varied analysis of dengue infection risk factors associated with cases of recent infection due to positive M-immunoglobulin dengue and the dengue cases, there was not any study variable, according to proposed hypothesis except that of the low level of knowledge in population on the disease, particularly as regards the symptoms, transmission mechanisms, causal agent and prevention measures. CONCLUSIONS: The high prevalence of dengue in this place is the result of lack of knowledge on disease and the existence of the vector; this latter is the basic condition for its transmission. Its presence is an indirect indicator of the poor hygienic-health conditions of population and also of the existence of the home breeding places.

  14. SAN AGUSTÍN ANTE EL IMPERIO DE ORIENTE: HISTORIA Y CREENCIA SAINT AUGUSTINE AND THE EMPIRE OF THE EAST

    Directory of Open Access Journals (Sweden)

    CÉSAR GARCÍA ÁLVAREZ

    2012-01-01

    Full Text Available El autor de la presente investigación divide su trabajo en dos partes; en la primera explica la "aparente indiferencia" existente en las obras de San Agustín sobre el Imperio Bizantino. Plantea las diversas hipótesis: ¿Bizancio, un imperio aún no significativo? ¿San Agustín no sabía griego? ¿Se trata de un sabio retórico formado en Roma y al servicio de la Antigua Roma? En la segunda parte, el Profesor García pasa revista a los diversos concilios celebrados en Oriente y la presencia doctrinal de San Agustín en las definiciones que estas importantes asambleas dictaron.The author of the present research divides his work in two parts. In the first one, he explains the "apparent indifference" in St. Augustine's works related to the Byzantine empire. Diverse hypotheses are presented: Was Byzantium a still not significant empire? Did St. Augustine know Greek? Was he a Rome-trained scholarly rhetor at ancient Rome's service? In the second part, the author reviews diverse councils which took place in the East and St. Augustine's doctrinal presence in the definitions dictated by those important assemblies.

  15. SAN AGUSTÍN ANTE EL IMPERIO DE ORIENTE: HISTORIA Y CREENCIA / SAINT AUGUSTINE AND THE EMPIRE OF THE EAST

    Scientific Electronic Library Online (English)

    CÉSAR, GARCÍA ÁLVAREZ.

    Full Text Available El autor de la presente investigación divide su trabajo en dos partes; en la primera explica la "aparente indiferencia" existente en las obras de San Agustín sobre el Imperio Bizantino. Plantea las diversas hipótesis: ¿Bizancio, un imperio aún no significativo? ¿San Agustín no sabía griego? ¿Se trat [...] a de un sabio retórico formado en Roma y al servicio de la Antigua Roma? En la segunda parte, el Profesor García pasa revista a los diversos concilios celebrados en Oriente y la presencia doctrinal de San Agustín en las definiciones que estas importantes asambleas dictaron. Abstract in english The author of the present research divides his work in two parts. In the first one, he explains the "apparent indifference" in St. Augustine's works related to the Byzantine empire. Diverse hypotheses are presented: Was Byzantium a still not significant empire? Did St. Augustine know Greek? Was he a [...] Rome-trained scholarly rhetor at ancient Rome's service? In the second part, the author reviews diverse councils which took place in the East and St. Augustine's doctrinal presence in the definitions dictated by those important assemblies.

  16. Geomorfología y dinámica del Canal San Blas, provincia de Buenos Aires (Argentina

    Directory of Open Access Journals (Sweden)

    Diana G. Cuadrado

    2010-07-01

    Full Text Available Se estudió la geomorfología submarina y se efectuaron mediciones de corrientes de marea en el canal San Blas para determinar la dinámica sedimentaria actual. Se relevó un sector del fondo del canal con el sistema batimétrico GeoSwath para describir exhaustivamente la morfología de un campo de dunas. Su asimetría permite inferir un transporte residual del material del fondo hacia el interior de la Bahía Anegada sobre el veril NE del canal. Se realizó un estudio de la dinámica de las corrientes de marea, determinándose sus velocidades y direcciones durante un ciclo completo de marea en toda la columna de agua y a lo largo de un perfil transversal a la costa mediante un ADCP. A pesar que el ambiente corresponde a un régimen micromareal (rango de marea alrededor de 2 m, en el canal San Blas existen fuertes corrientes de marea que desde el sector medio transportan todo el material inconsolidado del fondo, formando un delta de reflujo en la boca externa del canal y un delta de flujo en la Bahía Anegada. Se reconocieron diferentes geoformas costeras que permiten inferir un transporte litoral hacia el exterior del canal sobre la costa sur del mismo. Basándose en sus características morfodinámicas, es posible definir el canal San Blas como una entrada de marea que conecta el mar abierto con la Bahía Anegada.The Bahía Anegada is the coastal zone of the southern part of Buenos Aires Province (Argentina, where several environments are recognized: islands, inlets, marshes, tidal plains and different types of beaches. The Bahía San Blas is located at the southern part of the Bahía Anegada, where the San Blas channel separates the mainland from an island (Fig. 1. The San Blas channel is 2.5 km wide and 12 km long. The study area has a tidal amplitude characterized by a mean of 1.62 m, being 2.20 and 0.58 m the high and low tide respectively. The present study shows the results of a bathymetric survey of the San Blas channel and an analysis of the behavior of the tidal currents that affect sediment transport and promote the generation of different bedforms. The aim of this study was to analyze the submarine geomorphology related to the dynamic conditions in order to characterize in detail the sedimentary conditions in this area. A detailed bathymetric study was conducted over a zone of 50 km², covering the San Blas channel, through a digital echosounder Bathy-500 positioned by DGPS operating in real time. Fifteen transversal tracks and three longitudinal tracks were made at the San Blas channel in order to obtain the necessary bathymetric profiles to make a bathymetric chart of the area. Over a zone of 1.5 km², characterized by a field of subaqueous dunes, a Phase Measuring Bathymetric System (FMBS, called swath bathymetry system "GeoSwath Plus" from GeoAcoustics Lt. (UK, was employed in order to determine the detailed dune morphology. This survey yielded details and disposition of the bedforms present on the channel bed with centimetric precision. Bottom sediment samples were collected and tidal currents were measured using an Acoustic Doppler Current Profiler (ADCP mounted on a ship. The tidal currents were measured during a whole tidal cycle, obtaining the distribution of velocity and direction over the water column, on a track carried out transversally to the channel. These values were computed with the associated WinRiver software. The entire field work (bathymetry, sampling, FMBS and ADCP was performed with the 6.5 m long boat IADO IV. The coastal features display geomorphological differences in response to a changing dynamic regimen along the channel (Fig. 2. Remarkable morphological and textural differences occur along the coast. Close to the mouth, a dissipative beach, with medium sand and a gentle slope is present. Mobile coastal dunes are common crowning the beach. Nearly the central part, the beach is steeper and composed of gravels developing then a reflective beach. Towards the north, in the inner part of the Bahía Anegada (north of Punta Ramirez, wave-cut platforms and marshes co

  17. Geomorfología y dinámica del Canal San Blas, provincia de Buenos Aires (Argentina)

    Scientific Electronic Library Online (English)

    Diana G., Cuadrado; Eduardo A., Gómez.

    2010-07-01

    Full Text Available Se estudió la geomorfología submarina y se efectuaron mediciones de corrientes de marea en el canal San Blas para determinar la dinámica sedimentaria actual. Se relevó un sector del fondo del canal con el sistema batimétrico GeoSwath para describir exhaustivamente la morfología de un campo de dunas. [...] Su asimetría permite inferir un transporte residual del material del fondo hacia el interior de la Bahía Anegada sobre el veril NE del canal. Se realizó un estudio de la dinámica de las corrientes de marea, determinándose sus velocidades y direcciones durante un ciclo completo de marea en toda la columna de agua y a lo largo de un perfil transversal a la costa mediante un ADCP. A pesar que el ambiente corresponde a un régimen micromareal (rango de marea alrededor de 2 m), en el canal San Blas existen fuertes corrientes de marea que desde el sector medio transportan todo el material inconsolidado del fondo, formando un delta de reflujo en la boca externa del canal y un delta de flujo en la Bahía Anegada. Se reconocieron diferentes geoformas costeras que permiten inferir un transporte litoral hacia el exterior del canal sobre la costa sur del mismo. Basándose en sus características morfodinámicas, es posible definir el canal San Blas como una entrada de marea que conecta el mar abierto con la Bahía Anegada. Abstract in english The Bahía Anegada is the coastal zone of the southern part of Buenos Aires Province (Argentina), where several environments are recognized: islands, inlets, marshes, tidal plains and different types of beaches. The Bahía San Blas is located at the southern part of the Bahía Anegada, where the San Bl [...] as channel separates the mainland from an island (Fig. 1). The San Blas channel is 2.5 km wide and 12 km long. The study area has a tidal amplitude characterized by a mean of 1.62 m, being 2.20 and 0.58 m the high and low tide respectively. The present study shows the results of a bathymetric survey of the San Blas channel and an analysis of the behavior of the tidal currents that affect sediment transport and promote the generation of different bedforms. The aim of this study was to analyze the submarine geomorphology related to the dynamic conditions in order to characterize in detail the sedimentary conditions in this area. A detailed bathymetric study was conducted over a zone of 50 km², covering the San Blas channel, through a digital echosounder Bathy-500 positioned by DGPS operating in real time. Fifteen transversal tracks and three longitudinal tracks were made at the San Blas channel in order to obtain the necessary bathymetric profiles to make a bathymetric chart of the area. Over a zone of 1.5 km², characterized by a field of subaqueous dunes, a Phase Measuring Bathymetric System (FMBS), called swath bathymetry system "GeoSwath Plus" from GeoAcoustics Lt. (UK), was employed in order to determine the detailed dune morphology. This survey yielded details and disposition of the bedforms present on the channel bed with centimetric precision. Bottom sediment samples were collected and tidal currents were measured using an Acoustic Doppler Current Profiler (ADCP) mounted on a ship. The tidal currents were measured during a whole tidal cycle, obtaining the distribution of velocity and direction over the water column, on a track carried out transversally to the channel. These values were computed with the associated WinRiver software. The entire field work (bathymetry, sampling, FMBS and ADCP) was performed with the 6.5 m long boat IADO IV. The coastal features display geomorphological differences in response to a changing dynamic regimen along the channel (Fig. 2). Remarkable morphological and textural differences occur along the coast. Close to the mouth, a dissipative beach, with medium sand and a gentle slope is present. Mobile coastal dunes are common crowning the beach. Nearly the central part, the beach is steeper and composed of gravels developing then a reflective beach. Towards the north, in the inner part of the Bahía Anegada (north of Punta

  18. Scientific Drilling Into the San Andreas Fault Zone —An Overview of SAFOD’s First Five Years

    Directory of Open Access Journals (Sweden)

    Stephen Hickman

    2011-03-01

    Full Text Available The San Andreas Fault Observatory at Depth (SAFODwas drilled to study the physical and chemical processes controlling faulting and earthquake generation along an active, plate-bounding fault at depth. SAFOD is located near Parkfield, California and penetrates a section of the fault that is moving due to a combination of repeating microearthquakes and fault creep. Geophysical logs define the SanAndreas Fault Zone to be relatively broad (~200 m, containing several discrete zones only 2–3 m wide that exhibit very low P- and S-wave velocities and low resistivity. Two of these zones have progressively deformed the cemented casing at measured depths of 3192 m and 3302 m. Cores from both deforming zones contain a pervasively sheared, cohesionless, foliated fault gouge that coincides with casing deformation and explains the observed extremely low seismic velocities and resistivity. These cores are being now extensivelytested in laboratories around the world, and their composition, deformation mechanisms, physical properties, and rheological behavior are studied. Downhole measurements show that within 200 m (maximum of the active fault trace, the direction of maximum horizontal stress remains at a high angle to the San Andreas Fault, consistent with other measurements. The results from the SAFOD Main Hole, together with the stress state determined in the Pilot Hole, are consistent with a strong crust/weak fault model of the San Andreas. Seismic instrumentation has been deployed to study physics of faulting—earthquake nucleation, propagation, and arrest—in order to test how laboratory-derived concepts scale up to earthquakes occurring in nature.

  19. El Ferrocarril Central Norte en Argentina, sección San Miguel de Tucumán-San José de Metán (Salta), 1880-1885. Notas sobre tierras y actores sociales

    Scientific Electronic Library Online (English)

    Cecilia Alejandra, Fandos.

    2011-06-01

    Full Text Available Este artículo analiza la prolongación del Ferrocarril Central Norte entre 1880-1885, época en que la línea se extendió desde la ciudad de San Miguel de Tucumán hasta el límite con Salta. Propone, a partir del análisis del caso tucumano, problematizar algunos aspectos del eje vincular entre el ferroc [...] arril y la tierra. En este sentido, la provincia de Tucumán mostraba un proceso singular de apropiación del recurso tierra en relación con muchas otras regiones de Argentina en el siglo XIX, lo que habría pautado también las políticas diseñadas para la obtención de tierras necesarias para la construcción de ferrocarriles. Finalmente, en torno a la cuestión ferrocarriles e intereses económicos empresariales sostiene que, pese a que en los balances finales las inversiones de capitales privados y públicos hayan resultado favorables a determinados sectores, fueron secundadas por actores ligados a una diversidad de actividades económicas. Abstract in english This article reviews the expansion of the "Central Norte" railway between 1880 and 1885. During this period of time, it stretched from the city of San Miguel de Tucumán up to the border of the Province of Salta. We intend to discuss the linking core between railway and land by analyzing this case. I [...] n this way, the Province of Tucumán shows a particular process of appropriation of the land with regard to many other regions of the country during the XIX th century. This should have lined the designed politics for the obtention of the necessary lands for the railway construction. Finally, and according to railway and economic business interests, we uphold that, despite the final positive balances of some private and public investments, they have been supported by agents related to a variety of economic activities.

  20. Edad y geoquímica del lamprófiro El Puesto, Las Aguadas, San Luis Age and geochemestry of El Puesto lamprophyre, Las Aguadas, San Luis

    Directory of Open Access Journals (Sweden)

    Teresita Montenegro

    2010-10-01

    Full Text Available El lamprófiro de El Puesto, sierra de San Luis, es una roca de tipo calcoalcalino, clasificada como minette. Constituye un dique que ha intruido a las rocas del Complejo Metamórfico Las Aguadas y al plutón tonalítico Rodeo Viejo. La textura es porfírica con fenocristales de flogopita y apatita, y escasos de anfíbol y rutilo. La mesostasis está constituida por feldespato potásico, apatita, rutilo, hematita, carbonatos, esfena, cuarzo y clinopiroxeno alterado. Geoquímicamente, está caracterizado por altos porcentajes de SiO2, K2O, tierras raras livianas, Ba, Sr, Zr y Hf y presenta anomalía negativa de Nb. Contenidos de Si, K, Ba y tierras raras livianas superiores a los promedios de lamprófiros calcoalcalinos, serían producidos por un mayor grado de contaminación cortical. La edad K-Ar en fenocristales de flogopita es 408 ± 6 Ma por lo que el lamprófiro estaría relacionado a las etapas finales del magmatismo famatiniano de las Sierras Pampeanas.The lamprophyre from El Puesto, sierra de San Luis, is a minette, calc-alkaline rock-type. It is a dyke that intrudes metamorphic rocks from Complejo Metamórfico Las Aguadas and igneous rocks from Rodeo Viejo tonalitic pluton. Its texture is porphyritic with phlogopite and apatite, and minor proportions of amphibole and rutile. K-feldspar, apatite, rutile, hematite, carbonates, sphene, quartz and altered clinopyroxene form the groundmass. High SiO2, K2O, ligth rare earths, Ba, Sr, Zr y Hf contents are the geochemical characteristics, and negative Nb anomaly is present. Enrichment in Si, K, Ba and ligth rare earths contents, higher than calc-alkaline lamprophyres, could be caused by a major degree of crustal contamination. A K-Ar age on phlogopite phenocrysts yield 408 ± 6 Ma, relating the lamprophyre intrusion with the latest famatinian magmatism cycle of Sierras Pampeanas.

  1. Edad y geoquímica del lamprófiro El Puesto, Las Aguadas, San Luis / Age and geochemestry of El Puesto lamprophyre, Las Aguadas, San Luis

    Scientific Electronic Library Online (English)

    Teresita, Montenegro; Ariel, Ortiz Suárez; Amancay, Martinez.

    2010-10-01

    Full Text Available El lamprófiro de El Puesto, sierra de San Luis, es una roca de tipo calcoalcalino, clasificada como minette. Constituye un dique que ha intruido a las rocas del Complejo Metamórfico Las Aguadas y al plutón tonalítico Rodeo Viejo. La textura es porfírica con fenocristales de flogopita y apatita, y es [...] casos de anfíbol y rutilo. La mesostasis está constituida por feldespato potásico, apatita, rutilo, hematita, carbonatos, esfena, cuarzo y clinopiroxeno alterado. Geoquímicamente, está caracterizado por altos porcentajes de SiO2, K2O, tierras raras livianas, Ba, Sr, Zr y Hf y presenta anomalía negativa de Nb. Contenidos de Si, K, Ba y tierras raras livianas superiores a los promedios de lamprófiros calcoalcalinos, serían producidos por un mayor grado de contaminación cortical. La edad K-Ar en fenocristales de flogopita es 408 ± 6 Ma por lo que el lamprófiro estaría relacionado a las etapas finales del magmatismo famatiniano de las Sierras Pampeanas. Abstract in english The lamprophyre from El Puesto, sierra de San Luis, is a minette, calc-alkaline rock-type. It is a dyke that intrudes metamorphic rocks from Complejo Metamórfico Las Aguadas and igneous rocks from Rodeo Viejo tonalitic pluton. Its texture is porphyritic with phlogopite and apatite, and minor proport [...] ions of amphibole and rutile. K-feldspar, apatite, rutile, hematite, carbonates, sphene, quartz and altered clinopyroxene form the groundmass. High SiO2, K2O, ligth rare earths, Ba, Sr, Zr y Hf contents are the geochemical characteristics, and negative Nb anomaly is present. Enrichment in Si, K, Ba and ligth rare earths contents, higher than calc-alkaline lamprophyres, could be caused by a major degree of crustal contamination. A K-Ar age on phlogopite phenocrysts yield 408 ± 6 Ma, relating the lamprophyre intrusion with the latest famatinian magmatism cycle of Sierras Pampeanas.

  2. Confianza y redes sociales en productores de hortalizas en San Luis Potosí, México / Trust and social networks of vegetable producers in San Luis Potosí, México

    Scientific Electronic Library Online (English)

    Katia A., Figueroa-Rodríguez; Benjamín, Figueroa-Sandoval; Mercedes, Borja-Bravo; Oscar M., Carrillo-Hidalgo; Francisco, Hernández-Rosas; Luis E., Tobón-Olguín.

    2012-12-01

    Full Text Available En la presente investigación se tuvieron dos objetivos: a) analizar las redes sociales de los productores de hortalizas de la zona media de San Luis Potosí, México, a fin de determinar su organización; y b) establecer la importancia que tiene la confianza para las relaciones de negocios como prestar [...] dinero, pedir dinero o hacer una sociedad. Se encuestó a 35 productores, que referenciaron 170 nombres que posteriormente se concentraron en 39 productores. Con la información de campo se construyeron matrices simétricas para esquematizar la estructura de la red y se formularon tres modelos de regresión logística para establecer la probabilidad de la intención de acción basada en la confianza. Los resultados muestran la importancia que tiene la proximidad entre actores. Se concluye que diferentes niveles de confianza explican la disposición a prestar dinero, hacer una sociedad y, en menor medida, a pedir dinero prestado. Abstract in english In this study, there were two objectives: a) analyzing the social networks of vegetable producers in the middle zone of San Luis Potosí, México, in order to determine their organization; and b) establishing the importance that trust has for business relations such as loaning money, asking for money [...] or setting up a society. Surveys were applied to 35 producers, who referenced 170 names that were later concentrated into 39 producers. With the field information, symmetrical matrices were built to schematize the network structure, and three logistic regression models were formulated to establish the probability of intention for action based on trust. The results show the importance that proximity between actors has. It is concluded that different levels of trust explain the disposition to lending money, setting up a society and, to a lesser degree, asking for money on loan.

  3. Dieta y variación morfológica craneofacial en poblaciones humanas del golfo San Matías (Patagonia, Argentina) / Diet and craniofacial morphological variation in human populations of the San Matías gulf (Patagonia, Argentina)

    Scientific Electronic Library Online (English)

    Virginia A, Cobos; Cristian M, Favier Dubois; S. Iván, Pérez.

    Full Text Available El objetivo de este trabajo es estudiar la variación morfológica craneofacial de las poblaciones humanas que habitaron la costa rionegrina del golfo San Matías (Patagonia, Argentina), y áreas vecinas, durante el Holoceno tardío (3.000-400 años AP) y su relación con cambios en la dieta. El registro a [...] rqueológico de esta región se caracteriza por presentar información detallada de los contextos ecológicos que permite establecer cambios en la dieta a partir de datos isotópicos y arqueológicos, y un control de la variable cronológica mediante fechados radiocarbónicos. En particular exploramos, mediante el empleo de técnicas de la morfometría geométrica en 2D, una hipótesis que postula la existencia de una relación entre la variación en la morfología craneofacial y los cambios en la dieta ocurridos alrededor de ca. 1.600 años AP en el área. Con este fin se analizó el patrón de cambio morfológico en el modulo facial y la base del cráneo en las poblaciones procedentes de las regiones del golfo San Matías, de la costa norte rionegrina, del valle inferior del río Chubut y de San Blas e Isla Gama, para las cuales se ha postulado la presencia de grados variables de diferencias en la dieta entre los períodos señalados. Nuestros resultados muestran que el patrón de variación morfológica craneofacial observado en el noreste de Patagonia en general, y en el área del golfo de San Matías en particular, es complejo, caracterizado por un comportamiento diferencial de las dos regiones anatómicas estudiadas (el esqueleto facial y la base del cráneo) en relación con la variación ecológica. Abstract in english The aim of this paper is to study the craniofacial morphological variation of human populations that inhabited the San Matías gulf coast (Río Negro, Patagonia, Argentina) and neighboring areas during the late Holocene (3000-400 years BP), and its relationship to changes in the diet. The archaeologic [...] al record of this region is characterized by detailed information of the ecological contexts that allows to differentiate changes in the diet from isotopic and archaeological data. The chronology for this area has been well established by radiocarbon dating. In particular, by using geometric morphometrics techniques in 2D, we explore a hypothesis that postulates the existence of a relationship between the variation in craniofacial morphological and dietary changes that occurred around ca. 1.600 years AP in the area. Here, we analyzed the pattern of morphological change in the facial module and cranial base in populations from the San Matías gulf, the northern coast of Negro river, the lower Chubut river valley, and San Blas and Isla Gama, for which the presence of varying degrees of differences in diet between the periods studied has been indicated. Our results show that the pattern of craniofacial morphological variation observed in northeastern Patagonia, in general, and in the area of San Matías gulf, in particular, is complex and characterized by a different behavior of the two anatomical regions studied (the facial skeleton and cranial base) relative to ecological variation.

  4. Cálculo del índice de pobreza del agua en zonas semiáridas: caso Valle de San Luis Potosí, México / Water proverty index assessment in semi-arid regions: the case of San Luis Potosí Valley (Mexico)

    Scientific Electronic Library Online (English)

    Briseida, LÓPEZ ÁLVAREZ; José Alfredo, RAMOS LEAL; Germán, SANTACRUZ; Janete, MORÁN RAMÍREZ; Simón Eduardo, CARRANCO LOZADA; María Cristina, NOYOLA MEDRANO; Luis Felipe, PINEDA MARTÍNEZ.

    2013-11-01

    Full Text Available El índice de pobreza del agua permite evaluar la pobreza de agua tomando en cuenta tanto factores físicos como socioeconómicos relacionados con la disponibilidad de agua. La metodología fue propuesta por Lawrence y colaboradores en 2002. El índice de pobreza del agua resulta de la suma ponderada de [...] cinco componentes clave: recursos, acceso, uso, capacidad y ambiente en una escala de evaluación de 0 a 100. Sin embargo, en la aplicación del índice para el Valle de San Luis Potosí para el año 2005, se tomó en cuenta la calidad del agua como un componente adicional a la metodología original. En el Valle de San Luis Potosí predominan climas secos con una precipitación media anual de 351 mm, una temperatura media anual de 17.5 °C y con evaporación potencial media anual de 2038.7 mm. En la zona de estudio se tiene una dependencia del 92 % del agua subterránea y 8 % de agua superficial para diferentes usos, además concentra el 40 % de la población estatal y se genera el 80 % del PIB estatal. Lo anterior explica la importancia económica que tiene el acuífero de esta región. El índice de pobreza del agua obtenido para Valle de San Luis Potosí fue de 46 puntos. El objetivo de este trabajo es estimar el índice de pobreza del agua en una región semiárida como el Valle de San Luis Potosí y vincular el bienestar de los hogares con la disponibilidad de agua. Abstract in english The water poverty index allows water poverty assessment taking into account both physical and socioeconomic factors related to water availability. The methodology was proposed by Lawrence et al., in 2002. The water poverty index is the weighted sum of five key components: resources, access, use, cap [...] acity and environmental assessment on a scale of 0 to 100. However, in applying the index to the Valley of San Luis Potosí to the year 2005, we took into account the quality of water as an additional component to the original methodology. In the Valley of San Luis Potosí dry climate, with an average annual rainfall of 351 mm, an average annual temperature of 17.5 °C and a mean annual potential evaporation of 2038.7 mm. The study area has a 92 % dependence on groundwater and 8% on surface water for different uses; the area also concentrates 40 % of the state's population and generates 80 % of state GDP. This explains the economic importance of the aquifer in this region. The water poverty index obtained for Valle de San Luis Potosí was 46 points. The aim of this paper is to estimate the poverty rate of water in a semiarid region as the Valley of San Luis Potosi and link household welfare with water availability.

  5. Geochemical assessment of metals and dioxin in sediment from the San Carlos Reservoir and the Gila, San Carlos, and San Francisco Rivers, Arizona

    Science.gov (United States)

    Church, Stanley E.; Choate, LaDonna M.; Marot, Marci E.; Fey, David L.; Adams, Monique; Briggs, Paul H.; Brown, Zoe Ann

    2005-01-01

    In October 2004, we sampled stream-bed sediment, terrace sediment, and sediment from the San Carlos Reservoir to determine the spatial and chronological variation of six potentially toxic metals-Cu, Pb, Zn, Cd, As, and Hg. Water levels in the San Carlos Reservoir were at a 20-year low at an elevation of 2,409 ft (734.3 m). Four cores were taken from the reservoir: one from the San Carlos River arm, one from the Gila River arm, and two from the San Carlos Reservoir just west of the Pinal County line. Radioisotope chronometry (7Be, 137Cs, and 210Pb) conducted on sediment from the reservoir cores provides a good chronological record back to 1959. Chronology prior to that, during the 1950s, is based on our interpretation of the 137Cs anomaly in reservoir cores. During and prior to the 1950s, the reservoir was dry and sediment-accumulation rates were irregular; age control based on radioisotope data was not possible. We recovered sediment at the base of one 4-m-long core that may date back to the late 1930s. The sedimentological record contains two discrete events, one about 1978-83 and one about 1957, where the Cu concentration in reservoir sediment exceeded recommended sediment quality guidelines and should have had an effect on sensitive aquatic and benthic organisms. Concentrations of Zn determined in sediment deposited during the 1957(?) event also exceeded recommended sediment quality guidelines. Concentration data for Cu from the four cores clearly indicate that the source of this material was upstream on the Gila River. Lead isotope data, coupled with the geochemical data from a 2M HCl-1 percent H2O2 leach of selected sediment samples, show two discrete populations of data. One represents the dominant sediment load derived from the Safford Valley, and a second reflects sediment derived from the San Francisco River. The Cu concentration spikes in the reservoir cores have chemical and Pb isotope signatures that indicate that deposits in a porphyry copper deposit from the Morenci district is the likely source of these Cu-rich sedimentary deposits. Copper concentrations and Pb isotope data in premining terrace-sediment deposits indicate that the Cu peaks could not have resulted from erosion of premining sediment from terrace deposits downstream on the Gila River. The chemical and Pb isotope data also indicate that agricultural practices in the Safford Valley have resulted in an increased sediment load to the Gila River since large-scale farming began, prior to the time when the San Carlos Reservoir was built. Analyses of dioxin, which is an impurity in one of the herbicides used in the late 1960s and early 1970s, were completed in sediment from one of the cores in the reservoir to determine whether any of these pesticide residues have accumulated in the reservoir sediment. Dioxin concentration is expressed in terms of its toxicity (toxic equivalent concentration or TEQ). Concentrations of dioxin in the sediment ranged from 0.68 to 1.37 pg/g and are less than any of the benchmark concentrations recommended as threshold values for adverse effects of dioxin in sediment (> 2.5-10 pg/g).

  6. Fault geometry and cumulative offsets in the central Coast Ranges, California: Evidence for northward increasing slip along the San Gregorio-San Simeon-Hosgri fault

    Science.gov (United States)

    Langenheim, V.E.; Jachens, R.C.; Graymer, R.W.; Colgan, J.P.; Wentworth, C.M.; Stanley, R.G.

    2012-01-01

    Estimates of the dip, depth extent, and amount of cumulative displacement along the major faults in the central California Coast Ranges are controversial. We use detailed aeromagnetic data to estimate these parameters for the San Gregorio–San Simeon–Hosgri and other faults. The recently acquired aeromagnetic data provide an areally consistent data set that crosses the onshore-offshore transition without disruption, which is particularly important for the mostly offshore San Gregorio–San Simeon–Hosgri fault. Our modeling, constrained by exposed geology and in some cases, drill-hole and seismic-reflection data, indicates that the San Gregorio–San Simeon–Hosgri and Reliz-Rinconada faults dip steeply throughout the seismogenic crust. Deviations from steep dips may result from local fault interactions, transfer of slip between faults, or overprinting by transpression since the late Miocene. Given that such faults are consistent with predominantly strike-slip displacement, we correlate geophysical anomalies offset by these faults to estimate cumulative displacements. We find a northward increase in right-lateral displacement along the San Gregorio–San Simeon–Hosgri fault that is mimicked by Quaternary slip rates. Although overall slip rates have decreased over the lifetime of the fault, the pattern of slip has not changed. Northward increase in right-lateral displacement is balanced in part by slip added by faults, such as the Reliz-Rinconada, Oceanic–West Huasna, and (speculatively) Santa Ynez River faults to the east.

  7. Mujeres, música y memoria en San Juan: 1900-1930 Womens, music and memory in San Juan city: 1900-1930

    Directory of Open Access Journals (Sweden)

    Patricia Blanco

    2009-12-01

    Full Text Available Esta miscelánea se refiere a mi libro publicado en 2008 con el título "Mujeres, música y memoria en San Juan. 1900-1930". El mismo trata de la memoria (y la identidad musical femenina de un San Juan que despertaba al siglo XX incorporándose al mundo moderno tanto en lo tecnológico como en lo cultural. Resalta el protagonismo de las mujeres en el mundo de la música, en este caso de la provincia de San Juan, Argentina; significando un aporte único y esperanzador porque ofrece no sólo una historia de la mujer en la música sino que, a su vez reconstruye una parte de la historia de San Juan poco frecuentada hasta hoy.This miscellany refer to my book has been published in 2008 under the title "Women, music and memory in San Juan. 1900-1930. " It deals with memory (and identity of a female musical San Juan who woke up to the twentieth century incorporated into the modern world in terms of both technological and in terms of culture. Highlights the role of women in the music world, in this case in the province of San Juan, Argentina; signifying a single input and hopeful because it offers not only a story of women in music but who, in turn rebuilds a part of the history of San Juan rare until now.

  8. Mujeres, música y memoria en San Juan: 1900-1930 / Womens, music and memory in San Juan city: 1900-1930

    Scientific Electronic Library Online (English)

    Patricia, Blanco.

    2009-12-01

    Full Text Available Esta miscelánea se refiere a mi libro publicado en 2008 con el título "Mujeres, música y memoria en San Juan. 1900-1930". El mismo trata de la memoria (y la identidad) musical femenina de un San Juan que despertaba al siglo XX incorporándose al mundo moderno tanto en lo tecnológico como en lo cultur [...] al. Resalta el protagonismo de las mujeres en el mundo de la música, en este caso de la provincia de San Juan, Argentina; significando un aporte único y esperanzador porque ofrece no sólo una historia de la mujer en la música sino que, a su vez reconstruye una parte de la historia de San Juan poco frecuentada hasta hoy. Abstract in english This miscellany refer to my book has been published in 2008 under the title "Women, music and memory in San Juan. 1900-1930. " It deals with memory (and identity) of a female musical San Juan who woke up to the twentieth century incorporated into the modern world in terms of both technological and i [...] n terms of culture. Highlights the role of women in the music world, in this case in the province of San Juan, Argentina; signifying a single input and hopeful because it offers not only a story of women in music but who, in turn rebuilds a part of the history of San Juan rare until now.

  9. Determinación de ciclosporina sanguínea realizada en el Hospital San Juan de Dios, San José, Costa Rica

    Scientific Electronic Library Online (English)

    Jorge, Granados-Zúñiga.

    2001-06-01

    Full Text Available Se determinó los niveles sanguíneos de ciclosporina y metabolitos (método de inmunoensayo de polarización de fluorescencia TDx, Abbott) y ciclosporina (método de inmunoensayo de polarización de fluorescencia AxSyM, Abbott) en 86 pacientes transplantados de riñón del Hospital San Juan de Dios. Los re [...] sultados fueron en promedio 3,26 veces mayores con el método de TDx que con el de AxSyM (amplitud=1,02-6,01, S.D.=0,99). Esto se puede atribuir a la reactividad cruzada del antisuero del TDx contra metabolitos de ciclosporina. La amplia variabilidad en las proporciones ciclosporina y metabolitos/ciclosporina (1,02-6,01) podría atribuirse a las diferencias interindividuales en la actividad de enzimas con citocromo P-450. Se sugiere que las diferencias en los métodos para determinar niveles de ciclosporina requerirían un ajuste en los márgenes terapéuticos de la droga. Abstract in english Cyclosporine and metabolites (maded by FPIA Abbott TDx) and cyclosporine (maded by FPIA Abbott AxSyM) blood levels were assayed on 86 renal transplanted adult patients of any sex. Results were 3.26 times greater with TDx than with AxSyM (range=1,02-6,01, SD=0,99). That may be attributed to TDx antis [...] erum cross-reactivity with cyclosporine metabolites. The wide variability in TDx/AxSyM rates (1,02-6,01) could be caused by interindividual differences on P-450 cytocrom-enzyme activities. It is suggested that differences in methods may require adjustments in therapeutic ranges.

  10. Simulation and SANS studies of gelation under shear

    International Nuclear Information System (INIS)

    Computer simulations of a two-dimensional Lennard-Jones fluid undergoing spinodal decomposition are reported for the system subjected to planar Couette flow. Key results are the images of the atomic structure and plots of the corresponding pair correlation functions. A companion small-angle neutron scattering (SANS) study of shear-influenced gelation in colloidal silica suspensions at volume fractions ? = 0.1, 0.12, 0.18, and 0.24 is discussed. It is found that the scattered intensity-wave vector curves from the unsheared gels obey a power law for ? < 0.24. At higher volume fractions, the power law does not seem to be followed. Shear, however, induces an apparent fractal structure in the gel at ?= 0.24. Results from the computer and the SANS experiments indicate that the spinodal decomposition process and the gelation mechanism have features in common

  11. SANS study of three-layer micellar particles

    CERN Document Server

    Plestil, J; Kuklin, A I; Cubitt, R

    2002-01-01

    Three-layer nanoparticles were prepared by polymerization of methyl methacrylate (MMA) in aqueous micellar solutions of poly(methyl methacrylate)-block-poly(methacrylic acid) (PMMA-b-PMA) and polystyrene-block-poly(methacrylic acid) (PS-b-PMA). The resulting polymer forms a layer on the core surface of the original micelles. SANS curves were fitted using an ellipsoidal (PMMA/PMMA/PMA) or spherical (PS/PMMA/PMA) model for the particle core. The particle size (for the presented series of the PMMA/PMMA/PMA particles, the core semiaxes ranged from 87 to 187 A and the axis ratio was about 6) can be finely tuned by variation of monomer concentration. Time-resolved SANS experiments were carried out to describe the growth of the PS/PMMA/PMA particles during polymerization. (orig.)

  12. Conceptions of prenatal care among Somali women in San Diego.

    Science.gov (United States)

    Beine, K; Fullerton, J; Palinkas, L; Anders, B

    1995-01-01

    Studies have shown that culturally sensitive prenatal care improves access to and utilization of that care. Focus groups were used to explore the beliefs and attitudes toward prenatal care among Somali women in San Diego, particularly in regard to their perinatal experiences following immigration. The women were very well informed about healthy prenatal practices, including nutrition and exercise, and very compliant in following such practices, having found ways and means to accommodate these practices into their new American lifestyle. The women were generally pleased with the care that they have received in San Diego and tolerant of most diagnostic and therapeutic interventions. The women preferred to be seen by a female doctor/health care practitioner who is informed about the female circumcision practiced in Somalia and who is conservative in the decision to perform cesarean section deliveries. PMID:7674057

  13. Designing and managing the San Joaquin Valley Air Quality Study

    International Nuclear Information System (INIS)

    The field measurement phase of the San Joaquin Valley Air Quality Study, which was conducted in the summer of 1990, was the largest and most sophisticated study of its kind ever conducted in this country. The San Joaquin Valley has the nation's second worst overall air quality problem and is using the study results to conduct regional modeling to refine its control strategies. The study began in 1985 and will continue into the mid-1990s. The origins of the study, and the manner in which it is being funded and administered, reflect a unique and highly successful collaboration among several levels of government and the private sector. The temporary organizational structure formed to manage the study sets an interesting precedent for how political-level leaders can work effectively with the scientific community to conduct a long term technical study

  14. Incidencia y tratamiento de las cardiopatías congénitas en San Miguel del Padrón / Incidence and treatment of congenital heart disease in San Miguel del Padrón

    Scientific Electronic Library Online (English)

    Emilia, Vega Gutiérrez; Lisandra, Rodríguez Velásquez; Vivian, Gálvez Morales; Leslie Bárbara, Sainz Cruz; Carlos, García Guevara.

    2012-09-01

    Full Text Available Introducción: los defectos congénitos cardiovasculares son en la actualidad con frecuencia, la causa de muerte en los primeros años de vida, y la detección de estos en la etapa fetal, les proporciona a los futuros padres, los conocimientos que les permite tomar una decisión, con respecto a continuar [...] o no con el embarazo. Objetivo: analizar la incidencia y tratamiento de las cardiopatías congénitas, en el municipio San Miguel del Padrón, en el periodo entre enero de 2007 y diciembre de 2010. Métodos: se realizó un estudio descriptivo acerca del diagnóstico prenatal y postnatal de las cardiopatías congénitas, en el municipio San Miguel del Padrón, entre el 1ro de enero de 2007 y el 31 de diciembre de 2010. Se detectó un total de 65 cardiopatías congénitas. Se aplicó una encuesta a las madres y familiares de 59 casos -por ser estos los que se encontraban residiendo en el área- para relacionar su etiología con factores de riesgos genéticos y ambientales. Además, se investigó el criterio individual acerca del manejo de estas por el servicio de genética, así como el grado de satisfacción y utilidad con respecto al asesoramiento genético. Resultados: esta investigación demostró una vez más, que las cardiopatías congénitas se mantienen dentro de las primeras causas de mortalidad infantil. Su incidencia en eeste estudio, se debió a factores ambientales de origen materno, entre los que se destacó el uso de teratógenos, principalmente el alcohol y el déficit de vitaminas y minerales. El asesoramiento genético recibido constituyó 54 (91 %) casos una gran ayuda para las familias, las cuales consideraron necesaria esta especialidad, para mejorar la calidad de la atención médica. Conclusiones: las cardiopatías congénitas mostraron una alta incidencia en nuestro estudio en la etapa prenatal y postnatal. Las cardiopatías complejas constituyeron aproximadamente más de la mitad de los diagnósticos ecográficos antes del nacimiento, en comparación con las detectadas posterior a este, y las más frecuentes fueron: la comunicación interventricular, interauricular y la coincidencia de ambas. El asesoramiento genético fue de relevante importancia para la comprensión y la toma de decisiones de las familias. Abstract in english Introduction: Nowadays, cardiovascular birth defects are often the cause of death in the first years of life, and the detection of these in the fetal stage, provides prospective parents, the knowledge that enables them to make a decision, regarding whether to continue pregnancy. Objective: To analyz [...] e incidence and treatment of congenital heart disease in the municipality of San Miguel del Padrón, from January 2007 to December 2010. Methods: We carried out a descriptive study on the prenatal and postnatal diagnosis of congenital heart disease in the municipality of San Miguel del Padrón, from 1st January 2007 to December 31st, 2010. We detected a total of 65 congenital heart diseases. Mothers and relatives of 59 cases had a survey of since they were living in this territory. This survey aimed to link etiology with genetic risk factors and environmental factors. In addition, we investigated the individual judgment about the genetic management by the service as well as satisfaction and usefulness of genetic counseling. Results: This research demonstrated once again that congenital heart disease remains within the leading causes of infant mortality. Its incidence in the following study was due to environmental factors of maternal origin, among which highlighted the use of teratogens, mainly alcohol and the lack of vitamins and minerals. The received genetic counseling was a great help for 54 (91 %) families, which considered necessary this expertise to improve the quality of care. Conclusions: Congenital heart disease showed a high incidence in our study in the prenatal and postnatal care. Complex heart diseases accounted for approximately over half of the diagnostic ultrasound before birth, compared to those detected afterwards. The most frequ

  15. Estimates of ground-water recharge from precipitation to glacial-deposit and bedrock aquifers on Lopez, San Juan, Orcas, and Shaw islands, San Juan County, Washington

    Science.gov (United States)

    Orr, Laura A.; Bauer, Henry H.; Wayenberg, Judith A.

    2002-01-01

    An important source of fresh water on Lopez, San Juan, Orcas, and Shaw Islands in San Juan County off the northwestern coast of Washington is glacial-deposit and bedrock aquifers. Two methods were used to estimate recharge from precipitation to the water tables on the islands. A daily near-surface water-balance method, the Deep Percolation Model (DPM), was used to simulate water budgets for the period October 1, 1996, through September 30, 1998 (water years 1997-98) for six small drainage basins?three on Lopez Island and one each on San Juan, Orcas, and Shaw Islands. The calibrated soil and subsoil parameters from the DPM for each small basin were then used in island-wide applications of the DPM where the direct runoff component (which is not available on an island-wide basis) was simulated, rather than input, and calibration was not required. A spatial distribution of annual recharge was simulated for each island, with island averages of: Lopez Island, 2.49 inches per year; San Juan Island, 1.99 inches per year; Orcas Island, 1.46 inches per year; and Shaw Island, 1.44 inches per year.A chloride mass-balance method that requires measurements of atmospheric chloride deposition, precipitation, streamflow, and chloride concentrations in ground water was used to estimate recharge to the glacial-deposit aquifers of Lopez Island. Only average recharge could be estimated using this method rather than area-specific recharge. Average recharge for Lopez Island estimated by this method was only 0.63 inch per year. The range of chloride concentrations in ground-water samples from selected wells indicates that the average recharge in areas of glacial deposits is between 0.29 and 1.95 inches per year. Recharge simulated using the DPM for two drainage basins on Lopez Island overlain by glacial deposits are 2.76 and 2.64 inches per year. Sources of chloride in ground water other than from the atmosphere would cause the recharge estimated by the chloride mass-balance method to be less than the actual recharge, therefore these estimates may represent lower limits which are, at least, consistent with the higher simulated recharge from the DPM. The average island-wide recharge is most closely related to the amount of area overlain by glacial deposits. Thus, even though Lopez Island receives the least precipitation, it has the most recharge per square mile because it proportionally has the largest area overlain by glacial deposits. Recharge simulated by the DPM for areas of shallow to outcropping bedrock generally were less than 1.5 inches per year, but recharge simulated in areas of glacial deposits ranged from less than 0.5 to 3 inches per year, with recharge as high as 9 inches per year in some small areas.

  16. Morbilidad y mortalidad materna en San Carlos, Cojedes-Venezuela. 2001-2008 / Maternal morbidity and mortality in San Carlos, Cojedes-Venezuela. 2001-2008

    Scientific Electronic Library Online (English)

    Nugged, Aure; Vicenta, Oropeza; Gilberto, Bastidas.

    2011-08-01

    Full Text Available El objetivo de este estudio fue conocer la morbi-mortalidad materna en el municipio San Carlos, del estado Cojedes, Venezuela, como actividad indispensable para determinar el estado de salud de la población. Se trató de un estudio descriptivo y retrospectivo de morbilidad y mortalidad materna de pac [...] ientes que acudieron al Hospital “Dr. Egor Nucete”, San Carlos, Venezuela, durante el periodo 2001-2008. La información se procesó y analizó mediante frecuencias relativas y en las comparaciones se emplearon pruebas de significancia paramétricas en escala cuantitativa. En total, 23.228 pacientes consultaron en el mencionado hospital, cifra que representa 28% de los egresos hospitalarios. El promedio de edad fue 22,6 años, con predominio de las adolescentes. Los partos fueron espontáneos en 76,9% de los casos, con promedio de estancia de 1,3 días, y 2,4 días para las pacientes sometidas a cesárea. Hubo 24.530 nacidos vivos. Los embarazos en adolescentes prevalecieron (22,1%) como causa de consulta, seguidos por abortos (19,6%). La tasa de mortalidad materna fue de 114,1/ 100.000 nacidos vivos; 85% ocurrió después de las primeras 48 horas posteriores al ingreso. Se concluye que la morbimortalidad materna tiene comportamiento similar al resto del país y de otras poblaciones suramericanas, y que esta información permitirá robustecer los servicios de salud. Abstract in english The objective of this study was to learn about maternal morbidity and mortality in the San Carlos municipality, Cojedes Sate, Venezuela, in order to determine the health status of the population from that state. A descriptive and retrospective study of maternal morbidity and mortality of patients wh [...] o visited the "Dr. Egor Nucete" Hospital in San Carlos, Venezuela, during 20012008. Data was processed and analyzed using relative frequencies, and comparisons were done with parametric tests in a quantitative scale. A total of 23.228 patients visited that hospital, which is 28% of the hospital discharge rate. The average age was 22.6 years, with predominance of female adolescents. There were 24.530 live births. 76.9 % of the cases were spontaneous deliveries, with an average time of hospital stay of 1.3 days, and 2.4 days for patients undergoing C-sections. Adolescent pregnancies predominated (22.1%) as cause of consultation, followed by miscarriages (19.6%). The maternal mortality rate was of 114. 1/100.000 live births, and 85 % of deaths occurred in the first 48 hours after admission. Conclusion: maternal morbidity and mortality follow a similar pattern to that of the rest of the country and of other South American populations, This information will be useful for the strengthening of health services.

  17. Registro de cáncer ginecológico Clínica San Pedro Claver, Bogotá, Colombia 2003 / Cancer institutional registry in a gynaecological service at San Pedro Claver Clinic, Bogotá, Colombia 2003

    Scientific Electronic Library Online (English)

    Mario A, González.

    2005-06-01

    Full Text Available Objetivo: revisar los casos nuevos de cáncer ginecológico atendidos durante el año 2003 en la Clínica San Pedro Claver, Bogotá, Colombia. Materiales y métodos: la captación de los casos se hizo a través de la junta de ginecología on­cológica a la cual asisten todas las pacientes nuevas de este servi [...] cio. Para garantizar la inclusión de la totalidad de ellas, se realizó una búsqueda activa de casos entre las pacientes hospitalizadas, registros de programación de cirugía, reportes de patología y en consulta externa. Los datos fueron registrados en un archivo de Excel y evaluados mediante el programa EPIINFO 2002. Resultados: se encontraron 158 casos de cáncer ginecológico, siendo el cáncer de cérvix (75 mujeres) el de mayor frecuencia; para efectos del registro, se consideraron dos tipos de tumores de cérvix: los exo­cervicales (59 casos) y los endocervicales (16 casos). En estas dos localizaciones, la distribución por estadios mostró el mayor número de casos en estado Ib, 49% en exocérvix y 62% en los tumores de endocérvix. El tratamiento más frecuentemente indicado en las mujeres con cáncer de cérvix fue la cirugía. El carcinoma de endometrio, con 46 mujeres, mostró mayoría en estado I (50%); el tipo histoló­gico más común fue el carcinoma endometrioide (87%). El tratamiento más usual fue la de cirugía, aplicado en el 93% de ellos. Se encontraron 34 pacientes con carcinoma de ovario, entre los que hubo una proporción igual de casos en estados tempranos I y II que en los tar­díos III y IV; el tipo histológico más frecuente fue el seroso (52,3%). El tratamiento más usado fue la combinación de cirugía y quimioterapia. Conclusiones: el registro institucional de cán­cer de la Clínica San Pedro Claver es una herramien­ta útil para conocer la distribución de los diferentes tumores ginecológicos evaluados en esta entidad. Permite establecer sus características personales, clínicas y las modalidades terapéuticas recibidas. El cáncer ginecológico registrado con mayor frecuencia en el año 2003 en esta clínica, fue el de cérvix. Este carcinoma es susceptible de prevención secundaria mediante la citología cervico-vaginal por lo que se hace imperativa la necesidad de revisar y fortalecer el programa de tamizaje para esta enfermedad. Abstract in english Objective: reviewing new cases of gynaeco­logical cancer attending Clínica San Pedro Claver, Bogotá, Colombia during 2003. Material and methods: the clinic’s oncolo­gical gynaecology committee facilitated compiling data as all new patients benefiting from this service are interviewed by it; a search [...] was made during clinical meetings, in consultants’ offices, amongst hospitalised patients, of operating room schedules and pathological reports to ensure including all new cases. The data so collected was recorded in an excel file; EPIINFO software was then used for analysing it. Results: there were 158 cases of gynaecological cancer, cervical cancer being encountered most frequently (46%). This neoplasm was divided into exocervix (59 cases) and endocervix (16 cases) categories; the cancerous stage found most often in both was Ib. Surgery was most often employed as treatment for this type of cancer. Endometrial cancer was found in 46 women. Stage I (50%), endometroid cancer (55%) and sur­gery (55%) were the stages, histology and treatment most often found, respectively. 34 patients were found to have ovarian cancer, presenting the same ratio of stages I-II as late stage III-IV; serous histology was most frequently encountered (52.3%). A combination of surgery and chemotherapy were most often employed for treating this disease. Conclusions: Clínica San Pedro Claver’s insti­tutional records led to establishing the distribution of different gynaecological tumours being evaluated there, establishing related personal and clinical cha­racteristics and the types of therapy being received. Cervical cancer was found to be the gynaecological cancer appearing most frequently during 2003 in Cl

  18. Incidencia y tratamiento de las cardiopatías congénitas en San Miguel del Padrón Incidence and treatment of congenital heart disease in San Miguel del Padrón

    Directory of Open Access Journals (Sweden)

    Emilia Vega Gutiérrez

    2012-09-01

    Full Text Available Introducción: los defectos congénitos cardiovasculares son en la actualidad con frecuencia, la causa de muerte en los primeros años de vida, y la detección de estos en la etapa fetal, les proporciona a los futuros padres, los conocimientos que les permite tomar una decisión, con respecto a continuar o no con el embarazo. Objetivo: analizar la incidencia y tratamiento de las cardiopatías congénitas, en el municipio San Miguel del Padrón, en el periodo entre enero de 2007 y diciembre de 2010. Métodos: se realizó un estudio descriptivo acerca del diagnóstico prenatal y postnatal de las cardiopatías congénitas, en el municipio San Miguel del Padrón, entre el 1ro de enero de 2007 y el 31 de diciembre de 2010. Se detectó un total de 65 cardiopatías congénitas. Se aplicó una encuesta a las madres y familiares de 59 casos -por ser estos los que se encontraban residiendo en el área- para relacionar su etiología con factores de riesgos genéticos y ambientales. Además, se investigó el criterio individual acerca del manejo de estas por el servicio de genética, así como el grado de satisfacción y utilidad con respecto al asesoramiento genético. Resultados: esta investigación demostró una vez más, que las cardiopatías congénitas se mantienen dentro de las primeras causas de mortalidad infantil. Su incidencia en eeste estudio, se debió a factores ambientales de origen materno, entre los que se destacó el uso de teratógenos, principalmente el alcohol y el déficit de vitaminas y minerales. El asesoramiento genético recibido constituyó 54 (91 % casos una gran ayuda para las familias, las cuales consideraron necesaria esta especialidad, para mejorar la calidad de la atención médica. Conclusiones: las cardiopatías congénitas mostraron una alta incidencia en nuestro estudio en la etapa prenatal y postnatal. Las cardiopatías complejas constituyeron aproximadamente más de la mitad de los diagnósticos ecográficos antes del nacimiento, en comparación con las detectadas posterior a este, y las más frecuentes fueron: la comunicación interventricular, interauricular y la coincidencia de ambas. El asesoramiento genético fue de relevante importancia para la comprensión y la toma de decisiones de las familias.Introduction: Nowadays, cardiovascular birth defects are often the cause of death in the first years of life, and the detection of these in the fetal stage, provides prospective parents, the knowledge that enables them to make a decision, regarding whether to continue pregnancy. Objective: To analyze incidence and treatment of congenital heart disease in the municipality of San Miguel del Padrón, from January 2007 to December 2010. Methods: We carried out a descriptive study on the prenatal and postnatal diagnosis of congenital heart disease in the municipality of San Miguel del Padrón, from 1st January 2007 to December 31st, 2010. We detected a total of 65 congenital heart diseases. Mothers and relatives of 59 cases had a survey of since they were living in this territory. This survey aimed to link etiology with genetic risk factors and environmental factors. In addition, we investigated the individual judgment about the genetic management by the service as well as satisfaction and usefulness of genetic counseling. Results: This research demonstrated once again that congenital heart disease remains within the leading causes of infant mortality. Its incidence in the following study was due to environmental factors of maternal origin, among which highlighted the use of teratogens, mainly alcohol and the lack of vitamins and minerals. The received genetic counseling was a great help for 54 (91 % families, which considered necessary this expertise to improve the quality of care. Conclusions: Congenital heart disease showed a high incidence in our study in the prenatal and postnatal care. Complex heart diseases accounted for approximately over half of the diagnostic ultrasound before birth, compared to those detected afterwards. The most frequent were: ventricular septal defect,

  19. Approximation of the surface of gypseous soils in San Luis Potosí, Mexico / La extensión de los suelos yesosos en San Luis Potosí, México

    Scientific Electronic Library Online (English)

    Juan F, Martínez-Montoya; Juan, Herrero-Isern; Jorge, Aceves-de Alba; Jorge, Palacio-Núñez; Víctor M, Ruiz-Vera; Genaro, Olmos-Oropeza.

    2012-12-01

    Full Text Available Los suelos yesosos del Estado de San Luis Potosí no están bien delimitados pese a ocupar extensiones considerables y requerir un manejo agrícola y ambiental específico. En este trabajo se indaga la localización y extensión de la superficie yesosa en el Altiplano y Zona Media del Estado de San Luis P [...] otosí, México. Para ello se consultó información cartográfica de suelos, de geología y de vegetación, así como estudios relacionados con suelos ricos en yeso; además, se usaron fotografías aéreas, espaciomapas (imágenes Landsat-5 Thematic Mapper en composición Rojo-Verde-Azul: 432 impresas a escala 1:250000), y se llevó a cabo trabajo de campo y de laboratorio. Los mapas de la Comisión de Estudios del Territorio Nacional fueron de gran ayuda en el proceso de cartografía, sobre todo como referencia inicial de la presencia de materiales yesosos. La superficie yesosa delimitada en el presente estudio (397.258 ha) duplica la reportada (193.907 ha) en la cartografía de la Comisión de Estudios del Territorio Nacional a escala 1:50.000. Además se discriminaron áreas con yeso somero, es decir, con horizonte yesoso a menos de 50 cm de profundidad, y áreas con yeso profundo. Esta discriminación entre fase somera y fase profunda es muy útil para planear el manejo de estos suelos. Los mapas generados sirven como referencia para estudios específicos, encaminados a evaluar la aptitud de la tierra con fines productivos o de protección ambiental a escalas grandes, en cuyo caso debería levantarse cartografía más detallada. Abstract in english The gypseous soils of San Luis Potosí State, México, are not well map-delimited, despite their broad extent and the specific agricultural and environmental management they require. The present article highlights the location and extent of the gypseous lands in the Altiplano and Zona Media of San Lui [...] s Potosí State. For this purpose, soil, geology and vegetation maps as well as studies related to gypsum-rich soils, aerial photographs, and satellite maps (termed 'espaciomapas' in Spanish, these refer to Landsat-5 Thematic Mapper images of Red-Green-Blue:432 composition printed at 1:250,000 scale) were reviewed. Additionally, field and laboratory work were carried out. The maps provided by the Commission for Studies of the National Territory (CETENAL) proved very useful during the mapping process, especially as an initial reference to the presence of this soil type. The gypseous surface extent (397,258 ha) delineated in this study is double that (193,907 ha) reported in the CETENAL cartography at 1:50,000 scale. Moreover, areas with shallow gypsum, i.e., a gypseous horizon occurring at a depth of less than 50 cm, were discriminated from areas with deep gypsum (termed shallow and deep gypsum phases, respectively). This distinction between shallow and deep gypsum phases is very useful for resource management planning. The maps produced serve as a reference for specific studies aimed at evaluating the suitability of land for production or environmental purposes at large scales, in which case more detailed mapping will be required.

  20. City of San Antonio, Texas Better Buildings Program

    Energy Technology Data Exchange (ETDEWEB)

    Meyer, Liza C. [City of San Antonio, TX (United States)

    2014-06-30

    The San Antonio Better Buildings Program is a unified single-point-of-service energy efficiency delivery mechanism targeting residential, commercial, institutional, industrial and public buildings. This comprehensive and replicable energy efficiency program is designed to be an effective demand side management initiative to provide a seamless process for program participants to have turn-key access to expert analysis, support and incentives to improve the performance of their in-place energy using systems, while reducing electrical energy use and demand.

  1. Deterioration of San rock art : new findings, new challenges

    OpenAIRE

    Hall, Kevin John; Meiklejohn, K.I. (Ian); Arocena, Joselito; Prinsloo, Linda Charlotta; Sumner, P.D. (Paul); Hall, Lyndl

    2007-01-01

    The heritage of San rock art in southern Africa is globally acknowledged, and was one of the primary reasons for the successful nomination of the uKhahlamba / Drakensberg Park in South Africa as a World Heritage Site. Deterioration of rock paintings in the reserve could adversely affect the international status of the region, particularly as little has been achieved with regard to preserving the art for future generations. A study is currently under way in the Injisuthi and Giant's Castle are...

  2. Sustainability of irrigated agriculture in the San Joaquin Valley, California

    OpenAIRE

    Schoups, Gerrit; Hopmans, Jan W.; Young, Chuck A.; Vrugt, Jasper A.; Wesley W. Wallender; Tanji, Ken K.; Panday, Sorab

    2005-01-01

    The sustainability of irrigated agriculture in many arid and semiarid areas of the world is at risk because of a combination of several interrelated factors, including lack of fresh water, lack of drainage, the presence of high water tables, and salinization of soil and groundwater resources. Nowhere in the United States are these issues more apparent than in the San Joaquin Valley of California. A solid understanding of salinization processes at regional spatial and decadal time scales is re...

  3. Production and characterization of rhamnolipids from Pseudomonas aeruginosa san ai

    OpenAIRE

    Rikalovic Milena G.; Gojgic-Cvijovic Gordana; Vrvic Miroslav M.; Karadzic Ivanka

    2012-01-01

    Production and characterization of rhamnolipid biosurfactant obtained by strain Pseudomonas aeruginosa san ai was investigated. With regard to carbon and nitrogen source several media were tested to enhance production of rhamnolipids. Phosphate-limited proteose peptone-ammonium salt (PPAS) medium supplemented with sun flower oil as a source of carbon and mineral ammonium chloride and peptone as a nitrogen source greatly improved rhamnolipid production, from 0.15 on basic PPAS (C/N ratio...

  4. Solar water-heating performance evaluation-San Diego, California

    Science.gov (United States)

    1981-01-01

    Report describes energy saved by replacing domestic, conventional natural gas heater with solar-energy subsystem in single-family residence near San Diego, California. Energy savings for 6 month test period averaged 1.089 million Btu. Collector array covered 65 square feet and supplied hot water to both 66-gallon solar storage tank and 40-gallon tank for domestic use. Natural gas supplied house's auxiliary energy.

  5. Keeping Score, Michael Tilson Thomas with the San Francisco Symphony

    OpenAIRE

    Daniel Barolsky

    2011-01-01

    The San Franciso Symphony’s Keeping Score video series presents performances of a featured work (Beethoven’s Eroica, Berlioz’s Symphonie fantastique, Shostakovich’s Symphony No. 5, and Stravinsky’s Rite of Spring) under the direction of Michael Tilson Thomas followed by the story of the music with Thomas’s own analysis and interpretation. The performances are powerful and offer revelatory perspectives on these standard works. As tools for teaching music history, however, the DVDs are limited ...

  6. La situación sociolingüística de la lengua creole de San Andrés Isla: el caso de San Luis / The sociolinguistic situation of creole language in San Andres Island: San Luis case study

    Scientific Electronic Library Online (English)

    Deyanira Sindy, Moya Chaves.

    2014-01-01

    Full Text Available El presente artículo describe la situación lingüística de un sector tradicional de la Isla de San Andrés, Colombia llamado San Luis: los ámbitos de uso de las diferentes lenguas que allí coexisten; las funciones que cumplen y la relación entre lengua e identidad de los habitantes. Esta descripción s [...] urge de un estudio sociolingüístico llevado a cabo durante los años 2009 y 2010. Las conclusiones e interpretaciones de los hechos y de la información proporcionada se logran a partir de encuestas, observación participante, entrevistas e historias de vida. Los principales resultados sugieren la vitalidad de la lengua creole en los sectores tradicionales de la Isla, la expansión de ámbitos de uso del español y la posible pérdida del inglés. Como conclusiones se plantea la importancia de implementar una educación bilingüe intercultural que favorezca la protección y mantenimiento de la lengua creole y la comprensión entre pobladores y hablantes de diversas lenguas. Abstract in english This paperaims at describing the linguistic situation of a particular sector on San Andres Island, Colombia called San Luis. It illustrates the use of three different languages, their functions and the relationship between language and speakers' identity based on the results of a sociolinguistic stu [...] dy developed in 2009 and 2010 in this local area. Surveys, participant observation, interviews and life stories were used to collect information on how much these languagesareseen as part of the ethnical identity of native inhabitants on the island. Results show that there is a continuous expansion of Spanish and a possible loss of English on the island which leads to a need ofan intercultural bilingual education in order to promote a better understanding among diverse cultural and linguistic groups.

  7. The Value of Distributed Solar Electric Generation to San Antonio

    Energy Technology Data Exchange (ETDEWEB)

    Jones, Nic [Solar San Antonio, TX (United States); Norris, Ben [Clean Power Research, Napa, CA (United States); Meyer, Lisa [City of San Antonio, TX (United States)

    2013-02-14

    This report presents an analysis of value provided by grid-connected, distributed PV in San Antonio from a utility perspective. The study quantified six value components, summarized in Table ES- 1. These components represent the benefits that accrue to the utility, CPS Energy, in accepting solar onto the grid. This analysis does not treat the compensation of value, policy objectives, or cost-effectiveness from the retail consumer perspective.

  8. Radiation accident Hospital San Juan de Dios August - September 1996

    International Nuclear Information System (INIS)

    In Costa Rica, a radiation accident occurred in 1996. It took place at the Radiotherapy Service of the San Juan de Dios Hospital, which affected 115 patients. The Unit of Radiotherapy made a mistake in the calibration of the new bundle because of the change of external faeces of cobalt 60 (Alycon II). The work is a retrospective study that describes what happened in this accident, and the medical consequences that derived from it

  9. San Francisco Bay: Preparing for the next level

    OpenAIRE

    Pelt, S.C., van; Moors, E.J.

    2009-01-01

    This report provides new insights on the impacts climate change poses on San Francisco Bay, the opportunities this challenge brings and some potential guidelines on how to move forward, as the Bay Area continues to position itself in leading the way nationally and internationally on climate change adaptation. This report is also a landmark in the cooperation between the Netherlands and California on climate change adaptation. A team of professionals from both sides of the ocean has worked on ...

  10. Intestinal Protozoan Infections: Prevalence in the San Francisco Bay Area

    OpenAIRE

    Markell, Edward K.; Kuritsubo, Ruby A.

    1981-01-01

    A sample of 415 members of the Kaiser Foundation Health Plan (KFHP) were tested for intestinal protozoa. This parasite survey group was found to be comparable in age distribution, sex and ethnic background with the membership at large. Gastrointestinal complaints were no more numerous in this group than in a large series of KFHP members taking multiphasic examinations. Because KFPH membership included, at the time of the survey, approximately 27 percent of all residents of the San Francisco B...

  11. Contrôle optimal d'équations différentielles avec - ou sans - mémoire

    OpenAIRE

    Dupuis, Xavier

    2013-01-01

    La thèse porte sur des problèmes de contrôle optimal où la dynamique est donnée par des équations différentielles avec mémoire. Pour ces problèmes d'optimisation, des conditions d'optimalité sont établies ; celles du second ordre constituent une part importante des résultats de la thèse. Dans le cas - sans mémoire - des équations différentielles ordinaires, les conditions d'optimalité standards sont renforcées en ne faisant intervenir que les multiplicateurs de Lagrange pour lesquels le princ...

  12. Computational Electromagnetic Modeling of SansEC(Trade Mark) Sensors

    Science.gov (United States)

    Smith, Laura J.; Dudley, Kenneth L.; Szatkowski, George N.

    2011-01-01

    This paper describes the preliminary effort to apply computational design tools to aid in the development of an electromagnetic SansEC resonant sensor composite materials damage detection system. The computational methods and models employed on this research problem will evolve in complexity over time and will lead to the development of new computational methods and experimental sensor systems that demonstrate the capability to detect, diagnose, and monitor the damage of composite materials and structures on aerospace vehicles.

  13. Un hombre de San Juan: aproximación facial en antropología

    OpenAIRE

    Hayes, Susan

    2011-01-01

    Dentro de la antropología y la identificación forense, la aproximación facial (también conocida como "reconstrucción facial") se presenta frecuentemente como un hecho consumado, con evidencia mínima de las investigaciones y los métodos usados para alcanzar los resultados. Este trabajo presenta un panorama detallado de la investigación y los métodos usados para realizar una aproximación facial grafica en 2D de un hombre prehistórico del valle de Jachal, provincia de San Juan, Argentina. Se ent...

  14. Nouveaux algorithmes pour les communications vertes filaires et sans fil

    OpenAIRE

    Hamini, Abdallah

    2013-01-01

    La recrudescence et le déploiement de nouveaux services et applications dans les systèmes de communication, ainsi que le nombre toujours croissant d'utilisateurs, conduisent à une augmentation de la consommation d'énergie des réseaux et technologies de l'information et de la communication, ce qui contribue de façon significative au réchauffement climatique. Ainsi, pour satisfaire aux exigences énergétiques aussi bien pour les réseaux sans fil que filaires, de nouvelles approches doivent être ...

  15. Sustainable geohydrological model of San Luis Potosí aquifer, Mexico

    Scientific Electronic Library Online (English)

    E. Leticia, Flores-Márquez; Ingrid, Kohn Ledesma; Claudia, Arango-Galván.

    2011-12-01

    Full Text Available Un estudio geofísico e hidrogeológico se llevó a cabo en el acuífero de San Luis Potosí, con la finalidad de realizar un modelo transitorio de flujo de agua subterránea que reproduzca el estado actual del acuífero, para posteriormente proponer escenarios alternativos de explotación del acuífero. Est [...] e estudio permitió hacer importantes revelaciones sobre el estado del acuífero: el balance de recarga-extracción de agua presentó un déficit de 100 Hm³ en el año 2005; los niveles potenciométricos de datos recuperados entre 1972 y 2005 muestran un cono de depresión de 80 m de profundidad y 70 km² de área en la ciudad de San Luis Potosí; el modelo numérico realizado muestra que el acuífero es muy sensible a la localización de los pozos de extracción. También se realizaron modelos predictivos y algunas medidas de remediación fueron propuestas para obtener una recuperación del sistema acuífero. Abstract in english An integrated geophysical and hydrogeological study is carried out on the San Luis Potosí aquifer system and a transient flow model and are proposed alternative exploitation scenarios. The aquifer water balance between recharge and extraction indicates a deficit of 100 Hm³ by the year 2005. A compar [...] ison of the historical potentiometric levels recorded between 1972 and 2005 shows a cone of depression 80 m deep extending over an area of 70 km² inside of San Luis Potosí City. The model suggests that the aquifer is sensitive to the locations of extraction wells. Predictive models are developed and remediation measures are proposed as alternatives to current extraction procedures in order for the aquifer system to recover.

  16. Codage distribué pour les réseaux coopératifs sans fil

    OpenAIRE

    Hatefi, Atoosa

    2012-01-01

    Cette thèse est consacrée à l'étude théorique et à la conception pratique de schémas de codage conjoint réseau/canal adaptés à différents scénarii de communications dans les réseaux sans fil. Contrairement aux hypothèses conventionnelles retenues dans la littérature (accès multiple orthogonal, absence d'erreurs sur certains liens), les caractéristiques de diffusion et de superposition des signaux propres au canal radio et la présence d'évanouissements lents et de bruit sur tous les liens sont...

  17. 2005 hydrographic survey of south San Francisco Bay, California

    Science.gov (United States)

    Foxgrover, Amy C.; Jaffe, Bruce E.; Hovis, Gerald T.; Martin, Craig A.; Hubbard, James R.; Samant, Manoj R.; Sullivan, Steve M.

    2007-01-01

    An acoustic hydrographic survey of South San Francisco Bay (South Bay) was conducted in 2005. Over 20 million soundings were collected within an area of approximately 250 sq km (97 sq mi) of the bay extending south of Coyote Point on the west shore, to the San Leandro marina on the east, including Coyote Creek and Ravenswood, Alviso, Artesian, and Mud Sloughs. This is the first survey of this scale that has been conducted in South Bay since the National Oceanic and Atmospheric Administration National Ocean Service (NOS) last surveyed the region in the early 1980s. Data from this survey will provide insight to changes in bay floor topography from the 1980s to 2005 and will also serve as essential baseline data for tracking changes that will occur as restoration of the South San Francisco Bay salt ponds progress. This report provides documentation on how the survey was conducted, an assessment of accuracy of the data, and distributes the sounding data with Federal Geographic Data Committee (FGDC) compliant metadata. Reports from NOS and Sea Surveyor, Inc., containing additional survey details are attached as appendices.

  18. Third San Juan photoelectric astrolabe catalogue (CPASJ3)

    Science.gov (United States)

    Lu, L. Z.; Manrique, W. T.; Perdomo, R.; Wang, Z. Z.; Podesta, R. C.; Actis, E. L.; Zeng, F. M.; Alonso, E.; Zhao, G.; Pacheco, A. M.; Qiao, Q. Y.; Wang, H. Q.

    2005-01-01

    Resulting from the cooperation between Beijing, San Juan and La Plata Astronomical Observatories, the photoelectric astrolabe Mark II(PAII) of the Beijing Astronomical Observatory was moved and installed at the San Juan Observatory, Argentina in January, 1992 for observations of stars in the southern hemisphere. Using the data observed with the instrument from Feb. 23 1992 to Mar. 11, 2000 over 2382 days, the Third San Juan photoelectric astrolabe catalogue has been compiled from double transits at both the eastern and western passages. There are 6762 stars in this catalogue, including 6156 Hipparcos stars (in which there are 69 radio stars), 8 FK5 stars, 47 SRS stars, 551 CAMC4 stars. The mean precisions are ±3.0 ms and ±0.053'' in right ascension and declination, respectively. The magnitudes of stars are from 1.0 to 11.5. The declinations are from -3° to -60°. The mean epoch is 1996.3. Systematic corrections of (CPASJ3-Hipp) are given. The catalogue is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/430/327

  19. Solar Feasibility Study May 2013 - San Carlos Apache Tribe

    Energy Technology Data Exchange (ETDEWEB)

    Rapp, Jim [Parametrix; Duncan, Ken [San Carlos Apache Tribe; Albert, Steve [Parametrix

    2013-05-01

    The San Carlos Apache Tribe (Tribe) in the interests of strengthening tribal sovereignty, becoming more energy self-sufficient, and providing improved services and economic opportunities to tribal members and San Carlos Apache Reservation (Reservation) residents and businesses, has explored a variety of options for renewable energy development. The development of renewable energy technologies and generation is consistent with the Tribe’s 2011 Strategic Plan. This Study assessed the possibilities for both commercial-scale and community-scale solar development within the southwestern portions of the Reservation around the communities of San Carlos, Peridot, and Cutter, and in the southeastern Reservation around the community of Bylas. Based on the lack of any commercial-scale electric power transmission between the Reservation and the regional transmission grid, Phase 2 of this Study greatly expanded consideration of community-scale options. Three smaller sites (Point of Pines, Dudleyville/Winkleman, and Seneca Lake) were also evaluated for community-scale solar potential. Three building complexes were identified within the Reservation where the development of site-specific facility-scale solar power would be the most beneficial and cost-effective: Apache Gold Casino/Resort, Tribal College/Skill Center, and the Dudleyville (Winkleman) Casino.

  20. Ecological Impact of LAN: San Pedro Riparian National Conservation Area

    Science.gov (United States)

    Craine, Eric Richard; Craine, Brian L.

    2015-08-01

    The San Pedro River in Southeastern Arizona is home to nearly 45% of the 900 total species of birds in the United States; millions of songbirds migrate though this unique flyway every year. As the last undammed river in the Southwest, it has been called one of the “last great places” in the US. Human activity has had striking and highly visible impacts on the San Pedro River. As a result, and to help preserve and conserve the area, much of the region has been designated the San Pedro Riparian National Conservation Area (SPRNCA). Attention has been directed to impacts of population, water depletion, and border fence barriers on the riparian environment. To date, there has been little recognition that light at night (LAN), evolving with the increased local population, could have moderating influences on the area. STEM Laboratory has pioneered techniques of coordinated airborne and ground based measurements of light at night, and has undertaken a program of characterizing LAN in this region. We conducted the first aerial baseline surveys of sky brightness in 2012. Geographic Information Systems (GIS) shapefiles allow comparison and correlation of various biological databases with the LAN data. The goal is to better understand how increased dissemination of night time lighting impacts the distributions, behavior, and life cycles of biota on this ecosystem. We discuss the baseline measurements, current data collection programs, and some of the implications for specific biological systems.

  1. Age and paleoenvironment of the imperial formation near San Gorgonio Pass, Southern California

    Science.gov (United States)

    McDougall, K.; Poore, R.Z.; Matti, J.

    1999-01-01

    Microfossiliferous marine sediments of the Imperial Formation exposed in the Whitewater and Cabazon areas, near San Gorgonio Pass, southern California, are late Miocene in age and were deposited at intertidal to outer neritic depths, and possibly upper bathyal depths. A late Miocene age of 7.4 to >6.04 Ma is based on the ranges of age-diagnostic benthic foraminifers (Cassidulina delicata and Uvigerina peregrina), planktic foraminifers (Globigerinoides obliquus, G. extremus, and Globigerina nepenthes; zones N17-N19), and calcareous nannoplankton (Discoaster brouweri, D. aff. D. surculus, Reticulofenestra pseudoumbilicata, Sphenolithus abies, and S. neoabies; zones CN9a-CN11) coupled with published K/Ar dates from the underlying Coachella Formation (10.1 ?? 1.2 Ma; Peterson, 1975) and overlying Painted Hill Formation (6.04 ?? 0.18 and 5.94 ?? 0.18 Ma; J. L. Morton in Matti and others, 1985 and Matti and Morton, 1993). Paleoecologic considerations (sea-level fluctuations and paleotemperature) restrict the age of the Imperial Formation to 6.5 through 6.3 Ma. Benthic foraminiferal assemblages indicate that the Imperial Formation in the Whitewater and Cabazon sections accumulated at inner neritic to outer neritic (0-152 m) and possibly upper bathyal (152-244 m) depths. Shallowing to inner neritic depths occurred as the upper part of the section was deposited. This sea-level fluctuation corresponds to a global highstand at 6.3 Ma (Haq and others, 1987). Planktic foraminifers suggest an increase in surface-water temperatures upsection. A similar increase in paleotemperatures is interpreted for the North Pacific from 6.5 to 6.3 Ma (warm interval W10 of Barron and Keller, 1983). Environmental contrasts between the Whitewater and Cabazon sections of the Imperial Formation provide evidence for right-lateral displacements on the Banning fault, a late Miocene strand of the San Andreas fault system. The Cabazon section lies south of the Banning fault, and has been displaced west relative to the Whitewater sections. The Cabazon section was deposited at greater depths, suggesting that it accumulated farther offshore than the Whitewater section. If the Salton Trough was a southward-opening, elongated northwest-southeast basin similar to the modern Gulf of California, the Cabazon sequence probably has been displaced right-laterally from a position farther southeast of the Whitewater sequence. This relation requires late Miocene displacements greater than the present 12 km cross-fault separation between the two Imperial sections in the San Gorgonio Pass area.

  2. Rapports de parenté et de production à San Juan, haute vallée du Chancay, Pérou

    Directory of Open Access Journals (Sweden)

    1975-01-01

    Full Text Available Les relations de parenté dans l'organisation des communautés andines sont particulièrement importantes, ce qui est aussi le cas à San Juan. L'utilisation et la distribution de l'eau en fonction de 'turnos' se font selon diverses combinaisons basées sur les relations de parenté. Il est vraisemblable que l'organisation des tours à l'intérieur du village et par quartiers se fasse également en fonction de la distribution des familles. L'élevage est aussi lié à ces relations de parenté, en particulier l'élaboration des fromages: les femmes ont ici une place prépondérante, tout comme pour l'irrigation. Ainsi les relations de parenté constituent un capital précieux, mais seulement dans le cas d'une société traditionnelle fonctionnant par prestations mutuelles. Or, on assiste actuellement à un développement du travail libre favorisé par les possibilités d'accumulation individuelle d'argent (vente de fruits, des produits de l'élevage. La division sexuelle du travail est envisagée en fin d'article. Las relaciones de parentesco en la organización de las comunidades andinas son particularmente importantes, lo cual también es el caso de San Juan. La utilización y distribución del agua, en función de 'turnos' se efectúa de acuerdo a diversas combinaciones basadas en las relaciones de parentesco. Es verosímil que la organización de turnos para el agua en el interior del pueblo y por barrios se efectúe igualmente en función de la distribución de las familias. La cría de ganado también estaba ligada a estas relaciones de parentesco, sobre todo la elaboración de quesos: en esto las mujeres tienen un lugar preponderante, así como para la irrigación. Así pues las relaciones de parentesco constituyen un capital precioso, pero tan solo en el caso de una sociedad tradicional que funcione por prestaciones mutuas. Ahora bien, actualmente se asiste a un desarrollo de trabajo libre favorecido por las posibilidades de acumulación individual de dinero (por venta de frutas, o productos de la crianza de ganado. La división sexual del trabajo es observada atentamente al final del artículo. Relations of relationship in the organization of andean communities are particularly important and this is also the case of San Juan. Utilization and distribution of water in function of the turnos are also related to different combinations based upon relations of relationship. It is probable that the organization of water turns in the village itself and by parts is also related to family distribution. Cattle raising is also tied to these relations of relationship, principally for the elaboration of cheese: there women play an important part as for the irrigation. So, relations of relationship settle a precious capital, but only in the case of a traditional society functioning by mutual prestatations. Now, we will see today free work development helped by possibilities of individual accumulation of money (fruit and cattle raising product selling. At the end, we will consider sexual work differentiations.

  3. Maps of Quaternary Deposits and Liquefaction Susceptibility in the Central San Francisco Bay Region, California

    Science.gov (United States)

    Witter, Robert C.; Knudsen, Keith L.; Sowers, Janet M.; Wentworth, Carl M.; Koehler, Richard D.; Randolph, Carolyn E.; Brooks, Suzanna K.; Gans, Kathleen D.

    2006-01-01

    This report presents a map and database of Quaternary deposits and liquefaction susceptibility for the urban core of the San Francisco Bay region. It supercedes the equivalent area of U.S. Geological Survey Open-File Report 00-444 (Knudsen and others, 2000), which covers the larger 9-county San Francisco Bay region. The report consists of (1) a spatial database, (2) two small-scale colored maps (Quaternary deposits and liquefaction susceptibility), (3) a text describing the Quaternary map and liquefaction interpretation (part 3), and (4) a text introducing the report and describing the database (part 1). All parts of the report are digital; part 1 describes the database and digital files and how to obtain them by downloading across the internet. The nine counties surrounding San Francisco Bay straddle the San Andreas fault system, which exposes the region to serious earthquake hazard (Working Group on California Earthquake Probabilities, 1999). Much of the land adjacent to the Bay and the major rivers and streams is underlain by unconsolidated deposits that are particularly vulnerable to earthquake shaking and liquefaction of water-saturated granular sediment. This new map provides a consistent detailed treatment of the central part of the 9-county region in which much of the mapping of Open-File Report 00-444 was either at smaller (less detailed) scale or represented only preliminary revision of earlier work. Like Open-File Report 00-444, the current mapping uses geomorphic expression, pedogenic soils, inferred depositional environments, and geologic age to define and distinguish the map units. Further scrutiny of the factors controlling liquefaction susceptibility has led to some changes relative to Open-File Report 00-444: particularly the reclassification of San Francisco Bay mud (Qhbm) to have only MODERATE susceptibility and the rating of artificial fills according to the Quaternary map units inferred to underlie them (other than dams - adf). The two colored maps provide a regional summary of the new mapping at a scale of 1:200,000, a scale that is sufficient to show the general distribution and relationships of the map units but not to distinguish the more detailed elements that are present in the database. The report is the product of cooperative work by the National Earthquake Hazards Reduction Program (NEHRP) and National Cooperative Geologic Mapping Program of the U.S. Geological Survey, William Lettis and & Associates, Inc. (WLA), and the California Geological Survey. An earlier version was submitted to the U.S. Geological Survey by WLA as a final report for a NEHRP grant (Witter and others, 2005). The mapping has been carried out by WLA geologists under contract to the NEHRP Earthquake Program (Grant 99-HQ-GR-0095) and by the California Geological Survey.

  4. Tuberculosis en el Hospital Universitario San José, Popayán, 1998-2000

    Scientific Electronic Library Online (English)

    María Lilia, Díaz; Sulma, Muñoz; Liz Betty, García.

    2004-06-01

    Full Text Available La tuberculosis es problema de salud pública. La Ley 100 de 1993 trajo cambios importantes en los programas de prevención, los cuales debieron asumirlos los municipios y las empresas prestadoras de salud. El programa para el control de la tuberculosis no es ajeno a esta situación; se han registrado [...] menos búsquedas y exámenes de sintomáticos respiratorios. En esta nueva situación se necesita evaluar el manejo de la enfermedad en un hospital estatal de III nivel; por esta razón se adelantó un estudio descriptivo, retrospectivo, del perfil clínico, epidemiológico y de atención médica de los casos atendidos en el Hospital Universitario San José de Popayán en 2 años, mediante la revisión de las historias clínicas y los archivos de laboratorio. El Hospital Universitario San José informó 187 casos. De los 120 (64,2%) incluidos en el estudio, 89 fueron de tuberculosis, 27 con diagnóstico indeterminado y 4 no fueron tuberculosis. De los 89 casos con tuberculosis, 39 (43,8%) eran pulmonares y 50 (56,2%) extrapulmonar; 39 eran de tuberculosis miliar, 4 pleural, 3 ganglionar, 2 osteoarticular y 2 meníngea. El 49% tenía 15 a 59 años y 28%, 60 o más; 64% era de sexo masculino y 65% del área rural. La coloración de Ziehl Neelsen fue positiva en 22% de 59 esputos de casos de tuberculosis pulmonar y en 20,2% de 94 muestras de tuberculosis extrapulmonar. El cultivo fue positivo en 14,3% de 14 esputos de tuberculosis pulmonar y en 29,6% de 54 muestras de tuberculosis extrapulmonar. El promedio de días de hospitalización/sala fue de 4 a 26 y el promedio días de estancia/sala, antes del tratamiento de 4 a 8. Existe una importante demanda de atención médica por tuberculosis al Hospital Universitario San José. Se observa deficiencia en el abordaje diagnóstico y en el seguimiento y demora para el inicio del tratamiento. Se sugieren estrategias para mejorar el manejo. Abstract in english Tuberculosis in the San José University Hospital in Popayán, Colombia, 1998-2000 TB is a public health problem in the world. In Colombia the Health 100 Law caused changes in prevention programs. The TB control program was compromised too. The actions in relation with active looking and examination o [...] f respiratory symptomatic people has been lowering. This retrospective study describes the clinical, epidemiological and medical care characteristics of tuberculosis patients attended in the Hospital Universitario San José de Popayán. The clinical expedients and laboratory registers were investigated. 120 cases of 187 registered patients were included; finally only 89 were tuberculosis cases: 39 pulmonary (43.8%) and 50 extrapulmonary (56.2%). The extrapulmonary forms were: miliar, 39 patients; pleural, 4: of lymhp nodes, 3; osteoarticular, 2, and meningitis, 2 cases. 49% of patients were 15-59 years old, 28% more than 59; males 64% and 65% coming from country areas. Ziehl Neelsen (ZN) smear was positive in 22% of 59 sputums of pulmonary TB and 20.2% of 94 extrapulmonary TB samples: mycobacteria culture positive in 14.3 % of 14 pulmonary TB sputum, and 29.6% of 54 extrapulmonary TB samples. The media days into hospital/yard was 4-26 and the media days to begin tuberculosis treatment/yard was 4-8. In summary there are important request for TB medical care to universitary hospital, however the diagnosis is difficult and takes a long time while mycobacteria can be transmitted to hospital contacts. It is necessary to get a better efficiency of diagnostic tests in the hospital and appropriated survey of the cases that begin treatment.

  5. Seismic analysis and design of the San Onofre Nuclear Generating Station, Units 2 and 3 containment

    International Nuclear Information System (INIS)

    Because the San Onofre Nuclear Generating Station, Units 2 and 3, is located in a seismically active western region, design and analysis of the plant had to consider the seismic loads applied to the various safety-related structures, components, and equipment as loads that could control the overall layout and design of the power block. An attempt was made to find an optimum design that would minimize cost penalties associated with these loads, but still provide a high seismic resistant structure. Design and analysis of the containment and interior structure are discussed. Evolution of the containment layout is traced and the analysis procedures for developing in-structure response spectra and the results and the effects of significant parameters are also discussed

  6. Health Implications of Erionite Exposure Near San Miguel de Allende, Mexico: Preliminary Findings

    Science.gov (United States)

    Ortega, A.; Carrasco, G.

    2013-05-01

    In a rural village located near San Miguel de Allende in the State of Guanajuato, Mexico, lung cancer is the primary cause of death. Medical and mortality records show that near to 40% of the deaths correspond to different neoplasms of the lung and near to 10% to malignant mesothelioma. Epidemiological and environmental surveys are conducted to provide insight into the causes of this health problem. Erionite was found in altered volcanic tuffs nearby the village and in fine-granular materials used for the construction of adobe houses in the past. Preliminary results relate erionite fibers as the main carcinogenic agent with almost the same annual rate of deaths by mesothelioma than in the Cappadocian region of Turkey.

  7. Activity patterns of jaguar, puma and their potential prey in San Luis Potosi, Mexico

    Directory of Open Access Journals (Sweden)

    Anuar D. HERNÁNDEZ-SAINTMARTÍN

    2013-12-01

    Full Text Available Jaguars (Panthera onca and pumas (Puma concolor are sympatric species in Mexico and have ecological similarities. The understanding of interespecific interactions between these species are important for effective conservation strategies. We studied activity patterns of jaguars, pumas and their potential prey species through camera-trapping photographs obtained by during four seasons in the Abra-Tanchipa Biosphere Reserve , San Luis Potosí, Mexico. We described activity patterns of 12 terrestrial vertebrate species, the degree of overlap of jaguar and puma activity; and the prey - predator relationship. Both felids showed cathemeral activity and overlapping between their activities. Jaguar activity showed a significant correlation with eight prey species activity. Puma activity was no related with any prey species activity. Activity peaks of both felids suggest that temporal segregation is a strategy which minimizes interspecific encounters allowing the coexistence of several individuals in this small reserve.

  8. Geochemical and hydrologic data for San Marcos Springs recharge characterization near San Marcos, Texas, November 2008--December 2010

    Science.gov (United States)

    Crow, Cassi L.

    2012-01-01

    During 2008–10, the U.S. Geological Survey, in cooperation with the San Antonio Water System, collected geochemical and hydrologic data in Bexar, Comal, and Hays Counties, Texas, to define and characterize the sources of recharge to San Marcos Springs. Precipitation samples were collected for stable isotope analysis at 1 site and water-quality samples were collected at 7 springs, 21 wells, and 9 stream sites in the study area between November 2008 and December 2010. Continuous water-quality monitors were installed in three springs, two wells, and at one stream site. Three continuous stream-gaging stations were installed to measure gage height and a stagedischarge rating was developed at two of the three sites. Depth to water below land surface was continuously measured in two wells.

  9. Control estructural en la distribución de las mineralizaciones de uranio del ciclo Choiyoi, bloque de San Rafael, Mendoza Structural control on the distribution of uranium mineralizations of the Choiyoi cycle, San Rafael Massif, Mendoza

    Directory of Open Access Journals (Sweden)

    María S. Japas

    2008-06-01

    Full Text Available Las mineralizaciones más importantes del distrito uranífero Sierra Pintada (Bloque de San Rafael, Mendoza se asocian a las rocas pertenecientes al ciclo magmático Choiyoi. En la sección inferior de este ciclo predominan los yacimientos alojados en areniscas de origen epiclástico. En la sección superior, en cambio, se encuentran pequeñas mineralizaciones vetiformes de escasa importancia económica. Durante el emplazamiento y la acumulación de estas volcanitas y sedimentitas pérmicas prevalecieron dos regímenes de esfuerzo diferentes: transpresional (fase orogénica San Rafael y transtensional (etapa postorogénica, los cuales condicionaron los sistemas mineralizantes. Mediante un estudio de fábrica deformacional se evaluó el grado de control ejercido por las estructuras sobre la distribución de las mineralizaciones de uranio durante estas dos etapas de deformación. De esta forma, se intenta aportar nuevos conocimientos sobre la génesis de estos depósitos en la provincia magmática Choiyoi y generar nuevas guías de exploración. A través de este análisis se pudieron definir tres órdenes de magnitud en el control estructural sobre los depósitos asociados al ciclo Choiyoi inferior, cuyo desarrollo fue condicionado por la fábrica de la fase orogénica sanrafaélica. En el caso de las mineralizaciones alojadas en rocas de la sección superior del ciclo Choiyoi, el campo transtensional post-sanrafaélico ejerció un control, directo o indirecto, durante el proceso mineralizante.The main mineralizations of the Sierra Pintada uranium district, San Rafael Massif, Mendoza, are associated with the Choiyoi volcanic province. In the lower section of this magmatic cycle uranium deposits hosted by epiclastic sandstones are predominant. In the upper section, small vein-type deposits of low economic significance are found instead. During the emplacement of these Permian volcanic and sedimentary sequences two different stress regimes, which conditioned the mineralizing systems, were dominant: transpressional (San Rafael orogenic phase and transtensional (post-orogenic stage. A strain fabric analyses was performed in an attempt to evaluate the control exerted by the structures in the distribution of the uranium mineralizations during these two stages of deformation. So that, a contribution to a better understanding of the genesis of these deposits will aid to the generation of new exploration guides for uranium in the Choiyoi province. In the case of the deposits related to the lower Choiyoi, three orders of magnitude could be defined for the structural control. The fabric of the structures determining the distribution of these mineralizations reflects the structural grain of the San Rafael orogeny. The deposition of uranium hosted by the upper Choiyoi sequences was directly or indirectly influenced by the structures generated under the post-sanrafaelic stress field.

  10. Control estructural en la distribución de las mineralizaciones de uranio del ciclo Choiyoi, bloque de San Rafael, Mendoza / Structural control on the distribution of uranium mineralizations of the Choiyoi cycle, San Rafael Massif, Mendoza

    Scientific Electronic Library Online (English)

    María S., Japas; Julio A., Salvarredi; Laura E., Kleiman.

    2008-06-01

    Full Text Available Las mineralizaciones más importantes del distrito uranífero Sierra Pintada (Bloque de San Rafael, Mendoza) se asocian a las rocas pertenecientes al ciclo magmático Choiyoi. En la sección inferior de este ciclo predominan los yacimientos alojados en areniscas de origen epiclástico. En la sección supe [...] rior, en cambio, se encuentran pequeñas mineralizaciones vetiformes de escasa importancia económica. Durante el emplazamiento y la acumulación de estas volcanitas y sedimentitas pérmicas prevalecieron dos regímenes de esfuerzo diferentes: transpresional (fase orogénica San Rafael) y transtensional (etapa postorogénica), los cuales condicionaron los sistemas mineralizantes. Mediante un estudio de fábrica deformacional se evaluó el grado de control ejercido por las estructuras sobre la distribución de las mineralizaciones de uranio durante estas dos etapas de deformación. De esta forma, se intenta aportar nuevos conocimientos sobre la génesis de estos depósitos en la provincia magmática Choiyoi y generar nuevas guías de exploración. A través de este análisis se pudieron definir tres órdenes de magnitud en el control estructural sobre los depósitos asociados al ciclo Choiyoi inferior, cuyo desarrollo fue condicionado por la fábrica de la fase orogénica sanrafaélica. En el caso de las mineralizaciones alojadas en rocas de la sección superior del ciclo Choiyoi, el campo transtensional post-sanrafaélico ejerció un control, directo o indirecto, durante el proceso mineralizante. Abstract in english The main mineralizations of the Sierra Pintada uranium district, San Rafael Massif, Mendoza, are associated with the Choiyoi volcanic province. In the lower section of this magmatic cycle uranium deposits hosted by epiclastic sandstones are predominant. In the upper section, small vein-type deposits [...] of low economic significance are found instead. During the emplacement of these Permian volcanic and sedimentary sequences two different stress regimes, which conditioned the mineralizing systems, were dominant: transpressional (San Rafael orogenic phase) and transtensional (post-orogenic stage). A strain fabric analyses was performed in an attempt to evaluate the control exerted by the structures in the distribution of the uranium mineralizations during these two stages of deformation. So that, a contribution to a better understanding of the genesis of these deposits will aid to the generation of new exploration guides for uranium in the Choiyoi province. In the case of the deposits related to the lower Choiyoi, three orders of magnitude could be defined for the structural control. The fabric of the structures determining the distribution of these mineralizations reflects the structural grain of the San Rafael orogeny. The deposition of uranium hosted by the upper Choiyoi sequences was directly or indirectly influenced by the structures generated under the post-sanrafaelic stress field.

  11. Análisis de facies y paleoambiental de alta resolución de la Aloformación Punta San Andrés (Plio-Pleistoceno, provincia de Buenos Aires, Argentina

    Directory of Open Access Journals (Sweden)

    Elisa Beilinson

    2009-07-01

    Full Text Available La Aloformación Punta San Andrés aflora principalmente a lo largo de las barrancas costeras que se desarrollan desde la ciudad de Mar del Plata hasta la ciudad de Miramar y comprende las sedimentitas de edad plio-pleistocenas interpretadas como depósitos continentales de planicies aluviales, sistemas fluviales de baja sinuosidad y cuerpos de agua someros. El presente trabajo tiene por finalidad efectuar un análisis de alta resolución de facies sedimentarias así como de asociaciones de facies y arquitectura de los cuerpos sedimentarios presentes en los afloramientos de Baliza San Andrés y Complejo Turístico Chapadmalal de la Aloformación Punta San Andrés con el propósito de elaborar un modelo conceptual y dinámico de los ambientes depositacionales que la conformaron. Basado en el trabajo de campo y de laboratorio realizado, se definieron en primera instancia dos grandes grupos de facies, unas de origen depositacional y otras de origen postdepositacional, las cuales se agruparon en cuatro asociaciones de facies según los procesos que le dieron origen y según su arquitectura (AF I a IV: canales fijos de baja sinuosidad, canales móviles de alta sinuosidad, lóbulo de explayamiento y planicie de inundación pedogenizada. El análisis de estas asociaciones permitió definir ambientes depositacionales cuya sucesión e interrelación permite inferir un cambio progresivo en las condiciones de acomodación y paleoclimáticas imperantes durante su desarrollo.The continental deposits of the Punta San Andrés Alloformation (Plio-Pleistocene crop out in the marine cliffs of south eastern Buenos Aires province (Fig. 1. The deposits of this unit have been assigned to different continental sub-environments such as floodplains, fluvial channels and temporary water bodies (Zárate, 1989. The aim of this work is to perform a high-resolution facies and facies association analysis as well as an architectural characterization of the sedimentary bodies cropping out in Baliza San Andrés and Complejo Turístico Chapadmalal (Fig. 1. This information will be used to elaborate a conceptual and dynamic model of the depositional environments present in the Punta San Andrés Alloformation and to define main controlling factors over its accumulation. The study area is located in a typical passive margin controlled by transversal extensional systems that originated rift basins (aulacogens with very little basaltic magmatism (Ramos, 1996; Parker et al. 2008. This area experienced block rotation due to isostatic equilibrium and sedimentary overload. Accumulation of post-Miocene deposits was favored by a high sedimentary dynamic associated with the rise of the Andean Cordillera (Turic et al. 1996; Parker et al. 2008. More specifically, the study area is located in the southeastern part of the Tandilia Geological Province (Rolleri, 1975, Fig. 1. The pioneer papers on stratigraphy of the Mar del Plata and Miramar marine cliffs were carried out by Ameghino (1908, Frenguelli (1921 and Kraglievich (1952, 1953, 1959 (Figs.2, 3. The sedimentological characterization of these deposits was made by Teruggi et al. (1956 and Zárate (1989. This last author also proposed an allostratigraphic framework which intended to unify and simplify the late Cenozoic stratigraphy (Fig. 2. The rich vertebrate fauna present in the Punta San Andrés Alloformation and related units was studied since the first contributions by Ameghino (1908. These studies were the basis for the South American Late Cenozoic biostratigraphic scheme (Fig. 2; Marshall, 1985; Cione and Tonni, 1995, 1999. According to Zárate (1989, the Punta San Andrés Alloformation unconformably overlays the Pliocene continental deposits of the Punta Martínez de Hoz, Playa Los Lobos and Playa San Carlos alloformations. Its lateral extent is about 15 km from the Arroyo Lobería to Punta Vorohué (Fig. 1 and it also crops out between Arroyo Lobería and Playa San Carlos (Fig. 1. The mean thickness of the Punta San Andrés Alloformation is 15 meters. Internally, it is subdivided into thre

  12. Análisis de facies y paleoambiental de alta resolución de la Aloformación Punta San Andrés (Plio-Pleistoceno), provincia de Buenos Aires, Argentina

    Scientific Electronic Library Online (English)

    Elisa, Beilinson.

    2009-07-01

    Full Text Available La Aloformación Punta San Andrés aflora principalmente a lo largo de las barrancas costeras que se desarrollan desde la ciudad de Mar del Plata hasta la ciudad de Miramar y comprende las sedimentitas de edad plio-pleistocenas interpretadas como depósitos continentales de planicies aluviales, sistema [...] s fluviales de baja sinuosidad y cuerpos de agua someros. El presente trabajo tiene por finalidad efectuar un análisis de alta resolución de facies sedimentarias así como de asociaciones de facies y arquitectura de los cuerpos sedimentarios presentes en los afloramientos de Baliza San Andrés y Complejo Turístico Chapadmalal de la Aloformación Punta San Andrés con el propósito de elaborar un modelo conceptual y dinámico de los ambientes depositacionales que la conformaron. Basado en el trabajo de campo y de laboratorio realizado, se definieron en primera instancia dos grandes grupos de facies, unas de origen depositacional y otras de origen postdepositacional, las cuales se agruparon en cuatro asociaciones de facies según los procesos que le dieron origen y según su arquitectura (AF I a IV: canales fijos de baja sinuosidad, canales móviles de alta sinuosidad, lóbulo de explayamiento y planicie de inundación pedogenizada). El análisis de estas asociaciones permitió definir ambientes depositacionales cuya sucesión e interrelación permite inferir un cambio progresivo en las condiciones de acomodación y paleoclimáticas imperantes durante su desarrollo. Abstract in english The continental deposits of the Punta San Andrés Alloformation (Plio-Pleistocene) crop out in the marine cliffs of south eastern Buenos Aires province (Fig. 1). The deposits of this unit have been assigned to different continental sub-environments such as floodplains, fluvial channels and temporary [...] water bodies (Zárate, 1989). The aim of this work is to perform a high-resolution facies and facies association analysis as well as an architectural characterization of the sedimentary bodies cropping out in Baliza San Andrés and Complejo Turístico Chapadmalal (Fig. 1). This information will be used to elaborate a conceptual and dynamic model of the depositional environments present in the Punta San Andrés Alloformation and to define main controlling factors over its accumulation. The study area is located in a typical passive margin controlled by transversal extensional systems that originated rift basins (aulacogens) with very little basaltic magmatism (Ramos, 1996; Parker et al. 2008). This area experienced block rotation due to isostatic equilibrium and sedimentary overload. Accumulation of post-Miocene deposits was favored by a high sedimentary dynamic associated with the rise of the Andean Cordillera (Turic et al. 1996; Parker et al. 2008). More specifically, the study area is located in the southeastern part of the Tandilia Geological Province (Rolleri, 1975, Fig. 1). The pioneer papers on stratigraphy of the Mar del Plata and Miramar marine cliffs were carried out by Ameghino (1908), Frenguelli (1921) and Kraglievich (1952, 1953, 1959) (Figs.2, 3). The sedimentological characterization of these deposits was made by Teruggi et al. (1956) and Zárate (1989). This last author also proposed an allostratigraphic framework which intended to unify and simplify the late Cenozoic stratigraphy (Fig. 2). The rich vertebrate fauna present in the Punta San Andrés Alloformation and related units was studied since the first contributions by Ameghino (1908). These studies were the basis for the South American Late Cenozoic biostratigraphic scheme (Fig. 2; Marshall, 1985; Cione and Tonni, 1995, 1999). According to Zárate (1989), the Punta San Andrés Alloformation unconformably overlays the Pliocene continental deposits of the Punta Martínez de Hoz, Playa Los Lobos and Playa San Carlos alloformations. Its lateral extent is about 15 km from the Arroyo Lobería to Punta Vorohué (Fig. 1) and it also crops out between Arroyo Lobería and Playa San Carlos (Fig. 1). The mean thickness of the Punta San Andrés Alloformati

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

    International Nuclear Information System (INIS)

    This paper describes the Permo-triassic volcanism in the San Rafael Block, Mendoza, Argentina, which forms part of the Choiyoi province and it represents by large volumes of intermediate to silicic ignimbrites with minor sub volcanic bodies of rhyolites, andesites and basandesites. Three different suites can be distinguished: the first one (Lower Section) of Early Permian age, is composed of dacites and rhyolites (SiO2 up to 71 %) with minor andesites, the second one (Upper Section) of Late Permian-Early Triassic age is made up of rhyolites (SiO2 up to 77 %) with some basandesites and andesites, and the third one, of Triassic age is composed of rhyolites (SiO2 > 75 %) and basandecites. These suites are easily distinguished by means of trace element data and are believed to represent the transition between a subduction-related magmatic arc and an extensional tectonic regime. This tectonic setting is similar to the prevalent during the Cenozoic in the Sierra Occidental of Mexico and is favourable for the development of long-lived hydrothermal systems which lead to economic U concentrations (i.e. Sierra de Pena Blanca). In the San Rafael Block, the Dr. Baulies-Los Reyunos U deposit, which is hosted in volcanic sediments, is associated to the first suite (Lower Section). Although minor U concentrations are known, up to date, to be related to the second and third suites, these rocks are fertile and seen to be potential source for the formation of uranium deposits within a volcanic caldera environment. (Author)

  14. Aprendizajes del Accidente de San Juan Ixhuatepec-México / Learning from the Accident in San Juan Ixhuatepec-Mexico

    Scientific Electronic Library Online (English)

    Antioco, López-Molina; Richart, Vázquez-Román; Christian, Díaz-Ovalle.

    Full Text Available El índice Dow de fuego y explosión y la metodología del análisis cuantitativo del riesgo son aplicados para analizar uno de los accidentes más desafortunados en la historia mexicana: la explosión de tanques de almacenamiento de gas en la planta de San Juan Ixhuatepec en México. Estimaciones adiciona [...] les de la sobrepresión y radiación térmica producida durante el siniestro son llevadas a cabo para explicar el efecto dominó producido como consecuencia del incidente. Estas estimaciones dan evidencia de que las instalaciones en la planta de San Juan Ixhuatepec tenían un nivel de riesgo moderado lo cual se contrapone a la percepción de la sociedad en relación al riesgo de la compañía Pemex, propietaria de la planta. Este trabajo concluye que el accidente fue principalmente debido a errores humanos, así como a la pésima ubicación de la planta. Abstract in english The Dow fire and explosion index and the quantitative risk assessment methodology are applied to analyze one of the most unfortunate accidents in Mexican history: the explosion of gas storage tanks at the San Juan Ixhuatepec plant in Mexico. Additional calculations of over-pressure and thermal radia [...] tion are carried out to further explain the domino effect produced as a consequence of the accident. The results give evidence that facilities in San Juan Ixhuatepec had a moderate risk level which is in disagreement with people’s perception of the Pemex company, proprietary of the plant. This study concludes that the accident was mainly due to human error, as well as the inappropriate location of the plant.

  15. HERPETOFAUNA DE SIERRA DE LAS QUIJADAS ( SAN LUIS, ARGENTINA) HERPETOFAUNA FROM SIERRA DE LAS QUIJADAS (SAN LUIS, ARGENTINA)

    OpenAIRE

    Analía Guerreiro; J. C. Baldoni; Ana M. Brigada

    2005-01-01

    El Parque Nacional Sierra de las Quijadas se encuentra ubicado al noroeste de la provincia de San Luis. Fue creado en 1990 a fin de preservar parte del ecosistema semiárido, presentando una biodiversidad característica de un ambiente ecotonal de las provincias fitogeográficas del Chaco y del El Monte. En este trabajo se presenta una lista actualizada de anfibios y reptiles, integrada por 25 especies correspondientes a las familias Bufonidae (1), Leptodactyllidae (5), Testudinidae (1), Gekkoni...

  16. Fish community structure in San Agustín Bay, Huatulco, Mexico Estructura comunitaria de peces en bahía San Agustín, Huatulco, México

    OpenAIRE

    MARTÍN RAMÍREZ-GUTIÉRREZ; MARGARITO TAPIA-GARCÍA; EDUARDO RAMOS-SANTIAGO; RAÚL ULLOA

    2007-01-01

    San Agustín bay is one of the most important bays in the Huatulco National Park because it includes the broadest coral reef surface of this park, which supports a great diversity of fish species. The importance of the present work is that describes quantitatively, for first time, the fish assemblage of this reef area. Visual censuses were realized on transects, according to the coral reef size, on coral and rocky reefs, and coral rubble environments. 64 species, 46 genus and 29 families were ...

  17. Molino rotatorio romano con inscripción «Turro» procedente del castro de San Chuis (San Martín de Beduledo, Allande, Asturias)

    OpenAIRE

    Salido Domínguez, Javier; Ángel VILLA VALDÉS

    2014-01-01

    En este trabajo se analiza un fragmento de catillus correspondiente a un molino de grano rotatorio de época romana localizado en el castro de San Chuis (Allande, Asturias). La particularidad de este molino es que presenta una inscripción que menciona la palabra Turro. Ante las distintas posibilidades interpretativas de dicho epígrafe, planteamos como hipótesis que este término hace referencia al propietario o al usuario de dicha mola manuaria. Para la defensa de esta teoría, analizamos otro...

  18. Health-hazard evaluation report HETA 86-236-1725, San Francisco Opera Costume Shop, San Francisco, California

    Energy Technology Data Exchange (ETDEWEB)

    Belanger, P.L.; Okawa, M.T.

    1986-09-01

    An employee representative of the San Francisco Opera Costume Shop requested an investigation of possible exposure to chemical substances by crafts persons and textile artists. No overexposure to chemicals was found during cloth stripping and dying operations, boot deglazing, hat lacquering, fabric painting or casting operations. During boot spray painting, two personal air samples contained methylene chloride at 11.9 and 25 parts per million; both above the NIOSH recommended criteria for methylene-chloride exposure.

  19. Direct linear driving systems; Les entrainements lineaires directs

    Energy Technology Data Exchange (ETDEWEB)

    Favre, E.; Brunner, C.; Piaget, D. [ETEL SA (France)

    1999-11-01

    The linear motor is one of the most important developments in electrical drive technology. However, it only, began to be adopted on a large scale at the beginning of the 1990's and will not be considered a mature technology until well into the next millennium. Actuators based on linear motor technology have a number of technical advantages including high speed, high positional accuracy and fine resolution. They also require fewer component parts. Some precautions are necessary when using linear motors. Care must be taken to avoid overheating and excessive vibration, and the magnetic components must be protected.

  20. Frictional strength and heat flow of southern San Andreas Fault

    Science.gov (United States)

    Zhu, P. P.

    2015-09-01

    Frictional strength and heat flow of faults are two related subjects in geophysics and seismology. To date, the investigation on regional frictional strength and heat flow still stays at the stage of qualitative estimation. This paper is concentrated on the regional frictional strength and heat flow of the southern San Andreas Fault (SAF). Based on the in situ borehole measured stress data, using the method of 3D dynamic faulting analysis, we quantitatively determine the regional normal stress, shear stress, and friction coefficient at various seismogenic depths. These new data indicate that the southern SAF is a weak fault within the depth of 15 km. As depth increases, all the regional normal and shear stresses and friction coefficient increase. The former two increase faster than the latter. Regional shear stress increment per kilometer equals 5.75 ± 0.05 MPa/km for depth ?15 km; regional normal stress increment per kilometer is equal to 25.3 ± 0.1 MPa/km for depth ?15 km. As depth increases, regional friction coefficient increment per kilometer decreases rapidly from 0.08 to 0.01/km at depths less than ~3 km. As depth increases from ~3 to ~5 km, it is 0.01/km and then from ~5 to 15 km, and it is 0.002/km. Previously, frictional strength could be qualitatively determined by heat flow measurements. It is difficult to obtain the quantitative heat flow data for the SAF because the measured heat flow data exhibit large scatter. However, our quantitative results of frictional strength can be employed to investigate the heat flow in the southern SAF. We use a physical quantity P f to describe heat flow. It represents the dissipative friction heat power per unit area generated by the relative motion of two tectonic plates accommodated by off-fault deformation. P f is called "fault friction heat." On the basis of our determined frictional strength data, utilizing the method of 3D dynamic faulting analysis, we quantitatively determine the regional long-term fault friction heat at various seismogenic depths in the southern SAF. The new data show that as depth increases, regional friction stress increases within the depth of 15 km; its increment per kilometer equals 5.75 ± 0.05 MPa/km. As depth increases, regional long-term fault friction heat increases; its increment per kilometer is equal to 3.68 ± 0.03 mW/m2/km. The values of regional long-term fault friction heat provided by this study are always lower than those from heat flow measurements. The difference between them and the scatter existing in the measured heat flow data are mainly caused by the following processes: (i) heat convection, (ii) heat advection, (iii) stress accumulation, (iv) seismic bursts between short-term lull periods in a long-term period, and (v) influence of seismicity in short-term periods upon long-term slip rate and heat flow. Fault friction heat is a fundamental parameter in research on heat flow.