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Sample records for point sur california

  1. A Bottom Gravity Survey of the Continental Shelf Between Point Lobos and Point Sur, California.

    Science.gov (United States)

    From an occupation of 68 ocean bottom and 38 land gravity stations between Pt. Lobos and Pt. Sur, California, a complete Bouguer anomaly map was...produced and analyzed. The steps in data reduction leading to the complete Bouguer anomaly field are presented, unique features of which are associated

  2. Isostatic gravity map of the Point Sur 30 x 60 quadrangle and adjacent areas, California

    Science.gov (United States)

    Watt, J.T.; Morin, R.L.; Langenheim, V.E.

    2011-01-01

    This isostatic residual gravity map is part of a regional effort to investigate the tectonics and water resources of the central Coast Range. This map serves as a basis for modeling the shape of basins and for determining the location and geometry of faults in the area. Local spatial variations in the Earth's gravity field (after removing variations caused by instrument drift, earth-tides, latitude, elevation, terrain, and deep crustal structure), as expressed by the isostatic anomaly, reflect the distribution of densities in the mid- to upper crust, which in turn can be related to rock type. Steep gradients in the isostatic gravity field often indicate lithologic or structural boundaries. Gravity highs reflect the Mesozoic granitic and Franciscan Complex basement rocks that comprise both the northwest-trending Santa Lucia and Gabilan Ranges, whereas gravity lows in Salinas Valley and the offshore basins reflect the thick accumulations of low-density alluvial and marine sediment. Gravity lows also occur where there are thick deposits of low-density Monterey Formation in the hills southeast of Arroyo Seco (>2 km, Marion, 1986). Within the map area, isostatic residual gravity values range from approximately -60 mGal offshore in the northern part of the Sur basin to approximately 22 mGal in the Santa Lucia Range.

  3. Pockmarks off Big Sur, California

    Science.gov (United States)

    Paull, C.; Ussler, W.; Maher, N.; Greene, H. Gary; Rehder, G.; Lorenson, T.; Lee, H.

    2002-01-01

    A pockmark field was discovered during EM-300 multi-beam bathymetric surveys on the lower continental slope off the Big Sur coast of California. The field contains ??? 1500 pockmarks which are between 130 and 260 m in diameter, and typically are 8-12 m deep located within a 560 km2 area. To investigate the origin of these features, piston cores were collected from both the interior and the flanks of the pockmarks, and remotely operated vehicle observation (ROV) video and sampling transects were conducted which passed through 19 of the pockmarks. The water column within and above the pockmarks was sampled for methane concentration. Piston cores and ROV collected push cores show that the pockmark field is composed of monotonous fine silts and clays and the cores within the pockmarks are indistinguishable from those outside the pockmarks. No evidence for either sediment winnowing or diagenetic alteration suggestive of fluid venting was obtained. 14C measurements of the organic carbon in the sediments indicate continuous sedimentation throughout the time resolution of the radiocarbon technique ( ??? 45000 yr BP), with a sedimentation rate of ??? 10 cm per 1000 yr both within and between the pockmarks. Concentrations of methane, dissolved inorganic carbon, sulfate, chloride, and ammonium in pore water extracted from within the cores are generally similar in composition to seawater and show little change with depth, suggesting low biogeochemical activity. These pore water chemical gradients indicate that neither significant accumulations of gas are likely to exist in the shallow subsurface ( ??? 100 m) nor is active fluid advection occurring within the sampled sediments. Taken together the data indicate that these pockmarks are more than 45000 yr old, are presently inactive, and contain no indications of earlier fluid or gas venting events. ?? 2002 Elsevier Science B.V. All rights reserved.

  4. Oligocene cetaceans from Baja California Sur, Mexico

    OpenAIRE

    Hernández Cisneros, Atzcalli Ehécatl; González Barba, Gerardo; Fordyce, Robert Ewan

    2017-01-01

    Abstract Baja California Sur has an important Cenozoic marine fossil record which includes diverse but poorly known Oligocene cetaceans from Mexico. Here we review the cetacean fossil record including new observations from materials that elucidate the evolution of the Neoceti in the Pacific basin. Fossils were collected from outcrops of the El Cien Formation (Oligocene-Early Miocene) and from San Gregorio Formation (Late Oligocene). The specimens belong to the paleontological collection of Mu...

  5. Oceanographic data acquired in support of the June 1980 study of the upwelling center off Point Sur, California (NODC Accession 9000024)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Current, Temperature and Depth (CTD) data were collected by Naval Postgraduate School from Coastal Waters of California between 2-19 June, 1980 using ship...

  6. WATER TEMPERATURE, SALINITY, and HYDROSTATIC PRESSURE collected from R/V Point Sur in Entrance to the Gulf of California from 2013-04-19 to 2013-05-02 (NCEI Accession 0131072)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Hydrographic data were collected in Pescadero Basin (at the entrance to the Gulf of California) and subsequently along the West Coast of Baja California and Southern...

  7. May 2002 Lidar Point Data of Southern California Coastline: Dana Point to Point La Jolla

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains lidar point data from a strip of Southern California coastline (including water, beach, cliffs, and top of cliffs) from Dana Point to Point La...

  8. September 2002 Lidar Point Data of Southern California Coastline: Dana Point to Point La Jolla

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains lidar point data from a strip of Southern California coastline (including water, beach, cliffs, and top of cliffs) from Dana Point to Point La...

  9. Use of small reactors as an alternative to supply electricity to Baja California Sur; Uso de reactores pequenos como alternativa de suministro de electricidad para Baja California Sur

    Energy Technology Data Exchange (ETDEWEB)

    Alonso, G.; Portes, E.; Ramirez, J. R. [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico); Ortega, G., E-mail: gustavo.alonso@inin.gob.mx [Comision Federal de Electricidad, Rio Rodano No. 14, 06500 Ciudad de Mexico (Mexico)

    2016-09-15

    The state of Baja California Sur (Mexico) does not form part of the national interconnected electrical system of the country, reason why is local its electrical power supply; one of the alternatives to cover future demands is the use of gas-based combined cycles, which presents the additional problem of including a high price for gas transportation in its costs. In order to reduce total costs, including investment, fuels and operation and maintenance in the operation of the Baja California Sur state electricity system in the coming years, mainly due to the estimated natural gas cost order of $11.50 dollars per million BTU, a proposal is presented to reduce the costs of the electrical system by replacing the necessary combined cycles with the new Small Modular Reactor type nuclear reactors, this alternative is economically competitive. (Author)

  10. March 2003 Lidar Point Data of Southern California Coastline: Dana Point to Point La Jolla

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains lidar point data (Geodetic Coordinates) from a strip of Southern California coastline (including water, beach, cliffs, and top of cliffs) from...

  11. April 2004 Lidar Point Data of Southern California Coastline: Dana Point to Point La Jolla

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains lidar point data (Geodetic Coordinates) from a strip of Southern California coastline (including water, beach, cliffs, and top of cliffs) from...

  12. December 2002 Lidar Point Data of Southern California Coastline: Dana Point to Point La Jolla

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains lidar point data (latitude and longitude) from a strip of Southern California coastline (including water, beach, cliffs, and top of cliffs)...

  13. AUTOCHTHONOUS BIOFACIES IN THE PLIOCENE LORETO BASIN, BAJA CALIFORNIA SUR, MEXICO

    Directory of Open Access Journals (Sweden)

    MICHELE PIAZZA

    1998-07-01

    Full Text Available The present paper examines the molluscan and/or echinoid assemblages recovered from two lithostratigraphic units (Piedras Rodadas Sandstone and Arroyo de Arce Norte Sandstone outcropping in the Pliocene Loreto Basin, Baja California Sur, Mexico. Ten biofacies have been identified, i.e. Trachycardium procerum-Trachycardium senticosum Biofacies, Chione compta-Transennella modesta Biofacies, Laevicardium elenense-Chione kelletii Biofacies, Xenophora sp. 1-Strombus subgracilior Biofacies, Crassostrea californica osunai Biofacies, Myrakeena angelica Biofacies, Vermetid-Nodipecten Biofacies, Argopecten abietis abietis Biofacies, Aequipecten dallasi Biofacies and Encope Biofacies. The first four biofacies have been defined on the basis of statistical analyses (cluster analysis, MDS. The other six, which are monospecific or definitely low-diversity, were already identified during field work. The deduced paleoecological bearing of biofacies, largely relying upon the comparison to their closest modern counterparts, provides the basis for the paleoenvironmental reconstruction. The latter also considers sedimentological evidence and is framed within the tectonic and sedimentary context recently proposed by American workers. Biofacies point toward environments differing in terms of substrate texture, presence/absence of vegetal cover, energy level, variously distributed within the low tide mark-40 m bathymetric range. 

  14. Use of small reactors as an alternative to supply electricity to Baja California Sur

    International Nuclear Information System (INIS)

    Alonso, G.; Portes, E.; Ramirez, J. R.; Ortega, G.

    2016-09-01

    The state of Baja California Sur (Mexico) does not form part of the national interconnected electrical system of the country, reason why is local its electrical power supply; one of the alternatives to cover future demands is the use of gas-based combined cycles, which presents the additional problem of including a high price for gas transportation in its costs. In order to reduce total costs, including investment, fuels and operation and maintenance in the operation of the Baja California Sur state electricity system in the coming years, mainly due to the estimated natural gas cost order of $11.50 dollars per million BTU, a proposal is presented to reduce the costs of the electrical system by replacing the necessary combined cycles with the new Small Modular Reactor type nuclear reactors, this alternative is economically competitive. (Author)

  15. PIXE analysis of cave sediments, prehispanic paintings and obsidian cutting tools from Baja California Sur caves

    International Nuclear Information System (INIS)

    Miranda, J.; Oliver, A.; Dacal, A.; Ruvalcaba, J.L.; Cruz, F.; Ortiz, M.E.; Vinas, R.

    1993-01-01

    Elemental PIXE analysis of cave sediments, minerals, pigments of the prehispanic paintings and obsidian cutting tools from caves in Baja California Sur has been carried out with a 0.7 MeV proton beam. The elements analysed in this sample set (Al to Co) provide an idea of the environment of the caves. The obsidian data analysis suggests that the human communities who made these painting used more than one obsidian source to manufacture cutting tools. (orig.)

  16. California State Waters Map Series: offshore of Tomales Point, California

    Science.gov (United States)

    Johnson, Samuel Y.; Dartnell, Peter; Golden, Nadine E.; Hartwell, Stephen R.; Greene, H. Gary; Erdey, Mercedes D.; Cochrane, Guy R.; Watt, Janet Tilden; Kvitek, Rikk G.; Manson, Michael W.; Endris, Charles A.; Dieter, Bryan E.; Krigsman, Lisa M.; Sliter, Ray W.; Lowe, Erik N.; Chinn, John L.; Johnson, Samuel Y.; Cochran, Susan A.

    2015-01-01

    In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of swath sonar data, acoustic backscatter, seafloor video, seafloor photography, high-resolution seismic-reflection profiles, and bottom-sediment sampling data. The map products display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow (to about 200 m) subsurface geology.

  17. Mass media, espacio y tiempo en Todos Santos, Baja California Sur

    OpenAIRE

    Rossana Almada

    2001-01-01

    El artículo que aquí se sintetiza es un primer acercamiento, desde la perspectiva de autores entre los que destaca Manuel Castells, a un proyecto mayor que pretende analizar e interpretar el proceso de transformaciones que ha venido sufriendo el pueblo de Todos Santos, Baja California Sur BCS, debido a la llegada de dos contingentes de inmigrantes: el primero, rocedente de Estados Unidos y Canadá, llegó a comprar las casas del centro del pueblo; algunos con la intención de quedarse e inst...

  18. Point Reyes, California Tsunami Forecast Grids for MOST Model

    Data.gov (United States)

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

  19. Point de vue de la population sur la réforme du secteur de la ...

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

    Point de vue de la population sur la réforme du secteur de la sécurité palestinien. Dans le cadre de son plan visant à bâtir les institutions de l'État palestinien, le gouvernement de Salam Fayyad s'était engagé en août 2009 à moderniser le secteur de la sécurité palestinien en se fondant sur l'État de droit, sous la ...

  20. Metal concentrations in demersal fish species from Santa Maria Bay, Baja California Sur, Mexico (Pacific coast).

    Science.gov (United States)

    Jonathan, M P; Aurioles-Gamboa, David; Villegas, Lorena Elizabeth Campos; Bohórquez-Herrera, Jimena; Hernández-Camacho, Claudia J; Sujitha, S B

    2015-10-15

    Concentrations of 11 trace metals (Fe, Mn, Cr, Cu, Ni, Co, Pb, Zn, Cd, As, Hg) in 40 fish species from Santa Maria Bay, Baja California Sur, Mexico, the strategically important area for marine mammals and organisms were analyzed. Based on their concentrations the ranking of metals Fe>Zn>Ni>Cr>Mn>Pb>Cu>Co>As>Cd>Hg suggests that organism size, metabolism and feeding habits are correlated with metal concentrations. Local geological formations affect the concentrations of different metals in the aquatic environment and are subsequently transferred to fishes. The correlation analysis suggests that metabolism and nurturing habits impact the concentration of metals. Concentrations of Fe and Mn appear to be influenced by scavenging and absorption processes, which vary by species. The considerable variability in the metal concentrations obtained in different species underscores the importance of regular monitoring. Copyright © 2015 Elsevier Ltd. All rights reserved.

  1. Characteristics regarding the consumer of giant squid from Baja California Sur, Mexico

    Directory of Open Access Journals (Sweden)

    Liliana Enriqueta Montaño Méndez

    2015-01-01

    Full Text Available The catch of the giant squid (Dosidicus gigas, represents de second fishing activity most important in volume in Baja California Sur, Mexico; is an essential specie not only at the state level but at the pacific and even the national level. Mexico occupies in the world the eight level in the production of squid, but the national consumption, even though the low price of the product and the high nutritional level, is approximately 0.53 kg per year, very low compared to countries like Japan, Korea and Spain (average consumption per capita is of 3.5 kg . In this context, the objective of this article is to caracterize the sudcalifornia consumer preference; determine the buying habits and the consumption; and also to establish the market areas of the squid in Baja California Sur, which allows the introduction of actions for its commercialization, in order to strengthen the market of this product and its general activity. This is why in 2012 a questioner of 1066 consumers was distribute around the five counties of the state, according to the population density. The results indicate that the principal motive why there is not consumption is the difficulty to find places where to buy it, together with the problems of cooking it. Also, it can be seen the high level of ignorance the consumer has regarding the nutritional level this food has. For this reason, future strategies for the commercialization must be focus on better distribution and new form of presenting this product which facilitates its preparation and consumption, and at the same time create campaign which increase awareness of the nutrition level this product has.

  2. Desarrollo, identidad cultural y turismo en los oasis de Baja California Sur, México

    Directory of Open Access Journals (Sweden)

    Alexandra Sauvage

    2013-01-01

    Full Text Available This article provides an analysis of the integration of San Miguel and San José de Comondú to the process of economic globalization lived in Baja California Sur, in northwest Mexico. These rural communities are located in one of the largest oasis in the arid Baja California peninsula and face the risks of cultural commodification from the growth of the real estate and tourism sectors. In a context of diffuse integration to new markets and a weak local community involvement in the initiatives to foster economic growth, without a cultural policy that involves comundeños in defining their own heritage and the benefits of its use, the goal of local development attached to the recent public policies is questionable. We propose that a cultural policy should form the backbone of the development programmes now being elaborated, so as to articulate regional development needs with cultural heritage conservation, seeking to avoid the simple commodification of local traditions and recognizing the role of the local community in (redefining their cultural values.

  3. Comunidades de quitones (Mollusca: Polyplacophora de la Bahía de La Paz, Baja California Sur, México

    Directory of Open Access Journals (Sweden)

    Cedar I García Ríos

    2007-03-01

    Full Text Available A las ocho especies de poliplacóforos registradas en Bahía de la Paz, Baja California Sur, México, o cerca de ella, agregamos a Lepidochitona beanii, Chaetopleura lurida, Stenoplax limaciformis, S. mariposa, Lepidozona clathrata, L. serrata y Acanthochitona arragonites. El análisis de las comunidades estudiadas usando técnicas de ordenación sugiere que podría relacionarse la exposición al oleaje con la riqueza y la diversidad de especies. La comunidad recolectada en condiciones intermedias de exposición al oleaje presentó mayor número de especies y mayor diversidad de acuerdo con el índice de Shannon.Polyplacophoran communities (Mollusca: Polyplacophora at Bahía de La Paz, Baja California Sur, México. Eight species of polyplacophorans have been reported from La Bahía de la Paz, Baja California Sur, Mexico. We add Lepidochitona beanii, Chaetopleura lurida, Stenoplax limaciformis, S. mariposa, Lepidozona clathrata, L. serrata and Acanthochitona arragonites, increasing the known number of species to 15. Ordination analysis of five chiton communities at the site suggests a correlation of wave exposure to species composition and diversity: communities with intermediate wave exposure have more species (richness and higher diversity (Shannon’s index. Rev. Biol. Trop. 55 (1: 177-182. Epub 2007 March. 31.

  4. Point de vue sur la conservation-restauration des matières plastiques

    Directory of Open Access Journals (Sweden)

    Sylvie Ramel

    2007-10-01

    Full Text Available L’auteur expose le point de vue d'une restauratrice sur le problème de la dégradation des plastiques : celle-ci se marque tout particulièrement dans les « collections d'usage », qu'elle a eu à plusieurs reprises l'occasion de traiter.The author exposes the viewpoint of a restorer on the problem of plastics degradation. This phenomenon is particularly noticeable in the "collections of objects of uses" that she had the opportunity to treat several times.

  5. Desarrollo humano en el noroeste de México: un análisis comparativo de los estados de Sonora, Baja California y Baja California Sur, 1995-2005

    Directory of Open Access Journals (Sweden)

    Francisco José Zamudio Sánchez

    2009-01-01

    Full Text Available Este artículo aborda el desarrollo humano en Sonora, Baja California y Baja California Sur. Se estimaron los valores de cuatro índices: desarrollo humano con producto interno bruto, desarrollo humano con servicios, con género e inequidad; además de curvas de calidad estatal y municipal.Aunque los valores ubican a Baja California Sur en la mejor posición de los indicadores de desarrollo humano y después a Sonora; Baja California ocupa el mejor sitio en equidad en el país.

  6. en un área natural protegida en Baja California Sur

    Directory of Open Access Journals (Sweden)

    Elizabeth Olmos-Martínez

    2008-01-01

    Full Text Available Aquí se aborda el concepto de pobreza, enmarcado en el contexto de un área natural protegida (ANP, con la metodología propuesta por la Secretaría de Desarrollo Social (SEDESOL, cuya política pública maneja tres categorías para medirla: pobreza alimentaria, pobreza de capacidades y pobreza de patrimonio. El estudio de caso se efectuó en el ejido San Jorge (ESJ, ubicado dentro de la Reserva de la Biosfera Sierra La Laguna (REBISLA, en Baja California Sur. El análisis está basado en datos recolectados en entrevistas a los pobladores del lugar; se consideró el ingreso real diario per cápita, el cual indica si la persona es capaz de satisfacer las necesidades comprendidas en cada categoría, con un ingreso mínimo indispensable. Los resultados indican que la pobreza en la zona, de 2000 a 2004, no varió significativamente. Se concluyó que los habitantes del ESJ son pobres, según los propios parámetros de SEDESOL, y que su condición no ha mejorado, aunque viven en un ANP. Se analizan algunas alternativas que podrían ayudar a amortiguar este rezago.

  7. [Distribution of aquatic and raptor birds in a freshwater artificial pond of Baja California Sur, Mexico].

    Science.gov (United States)

    Castillo-Guerrero, J A; Carmona, R

    2001-01-01

    We determined the taxonomic composition and spatial-temporal distribution of aquatic and raptor birds in a freshwater artificial pond of El Centenario, Baja California Sur, México, during 24 biweekly censuses (April, 1998 to March, 1999). The pond is particularly attractive for birds because of its variety of food items. A total 25,563 records of 69 species were done, among them the first report of Chlidonias niger and Phalaropus tricolor for the region. Species richness and abundance were determined for the migrant component, mostly Anatidae (16 species and 55.6% of the total abundance) and shorebirds (18 species and 13.3%). The greater number of species and individuals was in C the deepest and more heterogeneous section of the pond. The most important species was Oxyura jamaicensis (30% of the total observed individuals), with highest abundance in the peninsula. The artificial pond presented an atypical and distinct ornithological composition because it is located in an arid region, and acts as a resting site for migrant birds. The site included species that usually live in freshwater and coastal areas, a characteristic reflected in their high richness. It contributes noticeably to the local avian biodiversity.

  8. Le point sur les données ouvertes : réflexion sur leur rôle en ...

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

    L'ouverture de portails gouvernementaux de données ouvertes aux États-Unis et au Royaume-Uni en 2009 a été le fer de lance d'un mouvement mondial qui, près de dix ans plus tard, a été adopté par des dirigeants du monde entier, comme le montrent les objectifs de développement durable, l'accord de Paris sur le ...

  9. Mass media, espacio y tiempo en Todos Santos, Baja California Sur

    Directory of Open Access Journals (Sweden)

    Rossana Almada

    2001-01-01

    Full Text Available El artículo que aquí se sintetiza es un primer acercamiento, desde la perspectiva de autores entre los que destaca Manuel Castells, a un proyecto mayor que pretende analizar e interpretar el proceso de transformaciones que ha venido sufriendo el pueblo de Todos Santos, Baja California Sur BCS, debido a la llegada de dos contingentes de inmigrantes: el primero, rocedente de Estados Unidos y Canadá, llegó a comprar las casas del centro del pueblo; algunos con la intención de quedarse e instalar negocios, principalmente de venta de Bienes Raíces, otros, para pasar allí la temporada otoño invierno; y el segundo, traído del interior del país, principalmente de Acayucan Veracruz y de Ocotepec Guerrero como jornaleros agrícolas por una compañía Sinaloense. Esta inmigración ha introducido a Todos Santos dentro de lo que Castells denomina como sociedad red, es decir, dentro de procesos sociales organizados, cada vez más, en torno a redes que constituyen las nuevas formas de organización social. En resumen, el presente trabajo aborda los efectos de la globalización en la transformación de un pueblo sudcaliforniano, a través de la llegada de los inmigrantes arriba mencionados y del uso de los medios de comunicación vía satélite.

  10. Turismo y Sustentabilidad en Pequeñas Localidades Localidades Costeras de Baja California Sur (BCS

    Directory of Open Access Journals (Sweden)

    Reyna Ibañez Pérez

    2014-01-01

    Full Text Available El fomento del turismo se realiza en sitios que, aunque pequeños, cuentan con atractivos naturales y culturales, tal es el caso de las zonas costeras. Tan solo en México, se estima que existen más de 1,100 comunidades que dependen directamente de dicha actividad, esta te ndencia se refleja, de igual manera, en pequeñas localidades costeras de Baja California Sur (BCS. En este sentido, el objetivo de este trabajo fue realizar un an álisis exploratorio que permitió detectar a las comunidades costeras de BCS, donde el turismo genera un aporte importante a su economía local, además , se buscó identificar la problemática general que éstas enfrentan. Para realizar dicho estudio se revisó literatura, se organizó información estadística y se elaboró un análisis Fortalezas, Oportunidades, Debilidades y Amenazas (FODA. Los resultad os apuntan a que, en BCS, existen más de 35 localidades ru rales vinculadas con dicha actividad que comparten como problemática la escasa in fraestructura y la carencia de medidas de control de la afluencia turística. La principal recomendación es desarrollar líneas de investigación que permitan aportar elementos para medir la sustentabilidad turística a nivel local y, co n base en ello, diseñar medidas para la adecuada conducción de tan importante actividad.

  11. Hybrid system of generating electricity, solar eolic diesel San Juanico, Baja California Sur, Mexico; Sistema hibrido de generacion electrica, eolico solar diesel San Juanico, Baja California Sur, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Huerta, Javier [Comision Federal de Electricidad, La Paz, Baja California Sur (Mexico); Johnston, Peter [Technology Development, Arizona (United States); Napikoski, Chester [Generation Engineering, Arizona (United States); Escutia, Ricardo [Comision Federal de Electricidad, Baja California Sur (Mexico)

    2000-07-01

    The Comision Federal de Electricidad (CFE), and the northamerican electric company Arizona Public Service (APS), made an agreement of collaboration to develop a project of generating electricity with the use of renewable resources. The premises that where agreed on are the following: 1. Focus the project a rural community. 2. The cost of the whole project should be lower than compared to the interconnection to a conventional system. 3. Acceptance of the community, and the governmental authorities. 4. Sustentability of the operation of the system. Several technical and economical analysis where done, such as the evaluation of the solar and eolic resources, study of the environmental impact, negotiation agreements so it would be possible to obtain de economical resources from Niagara Mohawk (NIMO), and the USAID, all of this thru the supervising of the Sandia National Laboratories. After the anemometric and solar radiation measures where made, it was considered that the community of San Juanico, en Baja California Sur, Mexico, was the most feasible one, it was necessary also to consider the aspects of logistics, socials, size of the community and as a detonator for the economic activities of tourism and fishing. The APS formulated the executive project in accordance with the recommendations of the different areas of CFE. The project consists basically in the installation of 10 wind generators of 10 Kw, a battery bank for 432 KWh, plus a diesel generator for emergencies of 80 Kw. Besides the civil and electromechanical installation. It was necessary to involve the community in the knowledge and followup of the project form it's, considering that this factor would be essential, so it could be successful. Lamps of low consumption where installed on the houses and street lightning, to optimize the system. The patronato that is a civil association of the community, is in charge of the administration of the system, it receives support from personnel of CFE. The income

  12. Hybrid system of generating electricity, solar eolic diesel San Juanico, Baja California Sur, Mexico; Sistema hibrido de generacion electrica, eolico solar diesel San Juanico, Baja California Sur, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Huerta, Javier [Comision Federal de Electricidad, La Paz, Baja California Sur (Mexico); Johnston, Peter [Technology Development, Arizona (United States); Napikoski, Chester [Generation Engineering, Arizona (United States); Escutia, Ricardo [Comision Federal de Electricidad, Baja California Sur (Mexico)

    2000-07-01

    The Comision Federal de Electricidad (CFE), and the northamerican electric company Arizona Public Service (APS), made an agreement of collaboration to develop a project of generating electricity with the use of renewable resources. The premises that where agreed on are the following: 1. Focus the project a rural community. 2. The cost of the whole project should be lower than compared to the interconnection to a conventional system. 3. Acceptance of the community, and the governmental authorities. 4. Sustentability of the operation of the system. Several technical and economical analysis where done, such as the evaluation of the solar and eolic resources, study of the environmental impact, negotiation agreements so it would be possible to obtain de economical resources from Niagara Mohawk (NIMO), and the USAID, all of this thru the supervising of the Sandia National Laboratories. After the anemometric and solar radiation measures where made, it was considered that the community of San Juanico, en Baja California Sur, Mexico, was the most feasible one, it was necessary also to consider the aspects of logistics, socials, size of the community and as a detonator for the economic activities of tourism and fishing. The APS formulated the executive project in accordance with the recommendations of the different areas of CFE. The project consists basically in the installation of 10 wind generators of 10 Kw, a battery bank for 432 KWh, plus a diesel generator for emergencies of 80 Kw. Besides the civil and electromechanical installation. It was necessary to involve the community in the knowledge and followup of the project form it's, considering that this factor would be essential, so it could be successful. Lamps of low consumption where installed on the houses and street lightning, to optimize the system. The patronato that is a civil association of the community, is in charge of the administration of the system, it receives support from personnel of CFE. The income that

  13. An application of neural network in geophysical prospecting. Electrical resistivity at Las Virgenes geothermal field, Baja California Sur, Mexico; Una aplicacion de las redes neuronales a la prospeccion geofisica. Resistividad electrica en las Tres Virgenes, Baja California Sur, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Palma Guzman, Sergio Hugo [Comision Federal de Electricidad, Morelia, Michoacan (Mexico)

    2000-12-01

    The technology of the neural network is presented with geophysical focus in the Las Virgenes geothermal field, Baja California Sur, Mexico. The results obtained when extrapolating the associative data of the prospecting magnetoteluria and Vertical Electric Sounding, on the area of the geothermal wells to the rest of the area, allows to classify zones of interest for the geothermal exploitation. Also, the use of these associative parameters with the information of the stabilized temperature of the wells, they allow to predict temperatures for the rest of the area. [Spanish] Se presenta una aplicacion de la tecnologia de las redes neuronales con enfoque geofisico en el campo geotermico de Las Virgenes, Baja California Sur, Mexico. Los resultados obtenidos al extrapolar los datos asociativos de las prospecciones geoelectricas de magnetoteluria y sondeos electricos verticales, en la zona de los pozos geotermicos al resto del area, permiten clasificar zonas de interes para la explotacion geotermica. Tambien, la utilizacion de estos parametros asociativos con la informacion de la temperatura estabilizada de los pozos, permiten predecir temperaturas para la misma area.

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

    Directory of Open Access Journals (Sweden)

    Israel Guerrero-Cárdenas

    2013-03-01

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

  15. Challenges and opportunities for implementing sustainable energy strategies in coastal communities of Baja California Sur, Mexico

    Science.gov (United States)

    Etcheverry, Jose R.

    This dissertation explores the potential of renewable energy and efficiency strategies to solve the energy challenges faced by the people living in the biosphere reserve of El Vizcaino, which is located in the North Pacific region of the Mexican state of Baja California Sur. This research setting provides a practical analytical milieu to understand better the multiple problems faced by practitioners and agencies trying to implement sustainable energy solutions in Mexico. The thesis starts with a literature review (chapter two) that examines accumulated international experience regarding the development of renewable energy projects as a prelude to identifying the most salient implementation barriers impeding this type of initiatives. Two particularly salient findings from the literature review include the importance of considering gender issues in energy analysis and the value of using participatory research methods. These findings informed fieldwork design and the analytical framework of the dissertation. Chapter three surveys electricity generation as well as residential and commercial electricity use in nine coastal communities located in El Vizcaino. Chapter three summarizes the fieldwork methodology used, which relies on a mix of qualitative and quantitative research methods that aim at enabling a gender-disaggregated analysis to describe more accurately local energy uses, needs, and barriers. Chapter four describes the current plans of the state government, which are focused in expanding one of the state's diesel-powered electricity grids to El Vizcaino. The Chapter also examines the potential for replacing diesel generators with a combination of renewable energy systems and efficiency measures in the coastal communities sampled. Chapter five analyzes strategies to enable the implementation of sustainable energy approaches in El Vizcaino. Chapter five highlights several international examples that could be useful to inform organizational changes at the federal

  16. Rapid subsidence and stacked Gilbert-type fan deltas, Pliocene Loreto basin, Baja California Sur, Mexico

    Science.gov (United States)

    Dorsey, Rebecca J.; Umhoefer, Paul J.; Renne, Paul R.

    1995-08-01

    Pliocene nonmarine to marine sedimentary rocks exposed in the Loreto basin, Baja California Sur, provide a record of syntectonic subsidence and sedimentation in a transform-rift basin that developed along the western margin of the Gulf of California. A thick sequence of twelve Gilbert-type fan deltas, having a total measured thickness of about 615 m, accumulated near the fault-bounded southwestern margin of this basin. Based on stratal geometries and lithofacies associations, sedimentary rocks are divided into Gilbert-delta topset, foreset and bottomset strata, shell beds and background shallow-marine shelf deposits. Topset strata of each Gilbert-type delta cycle are capped by laterally persistent molluscan shell beds containing diverse assemblages of bivalves, pectens, oysters, gastropods and echinoids. These shell beds are interpreted to be condensed intervals that record sediment starvation during abandonment of the fan-delta plain. Delta abandonment may have been caused by large episodic faulting events, which submerged each pre-existing fan-delta plain, substantially slowed detrital input by drowning of alluvial feeder channels, and created new accommodation space for each new Gilbert-type fan delta. Alternatively, it is possible that delta-plain abandonment was caused by upstream avulsions and autocyclic lateral switching of fan-delta lobes during relatively uniform rates of slip along the basin-bounding fault. Two contrasting, plausible basin models are proposed for the Loreto basin: (1) asymmetric subsidence along a high-angle oblique-slip normal fault, producing a classic half-graben basin geometry with vertically stacked Gilbert-type fan deltas; or (2) lateral stacking and horizontal displacement of strata away from a relatively fixed depocenter due to fault movement in the releasing bend of a listric strike-slip fault. We favor the first model because field relations and simple geometric constraints suggest that most of the total measured section

  17. Composición del aceite esencial de Tagetes lacera, planta endémica de Baja California Sur, México Composition of essential oil of Tagetes lacera, endemic plant from Baja California Sur, Mexico

    Directory of Open Access Journals (Sweden)

    Francisco Díaz-Cedillo

    2012-06-01

    Full Text Available Es escasa la información sobre la biología y química de Tagetes lacera Brand. (Asteraceae, especie endémica de Baja California Sur (BCS, México, que por su porte alto y presencia de aroma es una fuente de aceites esenciales útil para el control de plagas y enfermedades de cultivos agrícolas. A partir de partes aéreas de plantas en floración de T. lacera recolectadas en la sierra de la Laguna, BCS se obtuvo aceite esencial mediante hidrodestilación. Por medio del procedimiento de análisis CG-EM, se identificaron 6 compuestos principales: E-tagetona (26.2%, crisantenona (24.8%, verbenona (22.1%, α-thujeno (20.5%, β-pineno (3.1% y α-pineno (1.9%.It is scarce the background on the biology and chemistry of Tagetes lacera Brand. (Asteraceae, an endemic species from Baja California Sur (BCS, Mexico that considering its plant high and odor is an essential oil source to obtain biopesticides. From aerial parts of plants fully flowered of T. lacera picked in Sierra de la Laguna, BCS, essential oil was obtained by hydrodistillation. Using GC-MS analysis, 6 major compounds were identified: E-tagetone (26.2%, chrysanthenone (24.8%, verbenone (22.1%, α-thujene (20.5%, β-pinene (3.1%, α-pinene (1.9%.

  18. New and noteworthy waterfowl records at artificial wetlands from Baja California Sur, Mexico Registros nuevos y sobresalientes de anátidos en humedales artificiales de Baja California Sur, México

    Directory of Open Access Journals (Sweden)

    Roberto Carmona

    2011-06-01

    Full Text Available We present 9 recent records of rare waterfowls in Baja California Sur, all of them in artificial wetlands: 3 freshwater sites and 1 concentration area for a saltworks. We present the first records of the Ross's Goose in the state. The remaining 8 species are: Black-bellied Whistling-Duck (breeding, Fulvous Whistling-Duck, Greater White-fronted Goose, Snow Goose, Cackling Goose, Tundra Swan, Mallard and Hooded Merganser. To this list we added an historical compilation of the records of these species in artificial sites of the state. The artificial wetlands are no replacement for their natural counterparts, they are nevertheless an important part of the region's landscape mosaic. As the records of the present work exemplify, this man-made habitat increases the regional species richness, and should be considered as important areas that need to be protected.Presentamos registros recientes de 9 especies de anátidos raros en Baja California Sur, todos ellos realizados en humedales creados por el hombre: 3 sitios dulceacuícolas y 1 área de concentración para la producción de sal. Se incluyen los primeros registros del ganso de Ross (Chen rossii para el estado. Las 8 especies restantes son: Dendrocygna autumnalis (anidación, D. bicolor, Anser albifrons, Chen caerulesens, Branta hutchinsii, Cygnus columbianus, Anas platyrhynchos y Lophodytes cucullatus. A la lista, agregamos una recopilación histórica de los registros de estas especies en humedales artificiales del estado. Aunque estos sitios no deben sustituir a sus contrapartes naturales, actualmente forman parte del mosaico paisajístico que ofrece la región; adicionalmente, incrementan la riqueza de especies de la región, por lo que es necesario brindarles protección.

  19. Fire effects on the Point Reyes Mountain Beaver at Point Reyes National Seashore, California

    Science.gov (United States)

    Fellers, Gary M.; Pratt, David; Griffin, Jennifer L.

    2004-01-01

    In October 1995, a wildlands fire burned 5,000 ha on the Point Reyes peninsula, California, USA. In most of the nonforested areas, the fire effectively cleared the ground of litter and vegetation and revealed thousands of Point Reyes mountain beaver (Aplodontia rufa phaea) burrow openings. In the first 6 months after the fire, we surveyed burned coastal scrub and riparian habitat to (1) count the number of burrow openings that existed at the time of the fire, and (2) evaluate whether signs of post-fire mountain beaver activity were evident. We estimated that only 0.4–1.7% of mountain beavers within the burn area survived the fire and immediate post-fire period. We monitored mountain beaver activity for 5 years at 8 sites where mountain beavers survived, and found little or no recovery. We estimate that the mountain beaver population will take 15–20 years post-fire to recover.

  20. LAS MUJERES EN LA MIGRACIÓN INTERNA Y EL EMPLEO INFORMAL EN BAJA CALIFORNIA SUR, MÉXICO

    Directory of Open Access Journals (Sweden)

    ALBA E. GÁMEZ

    2010-01-01

    Full Text Available Este artículo analiza las características del fenómeno migratorio en Baja California Sur, en la costa norte del Pacífico mexicano, donde el turismo y la agricultura de exportación son dos sectores atractores de población. Esto ha estimulado una tasa de crecimiento demográfico promedio de 10% en la última década en regiones como Los Cabos, de las que se alimentan los sectores formal e informal. El propósito de este artículo es contribuir a la comprensión de la participación de las mujeres migrantes en el mercado laboral informal.

  1. Key species and impact of fishery through food web analysis: A case study from Baja California Sur, Mexico

    Science.gov (United States)

    Rocchi, Marta; Scotti, Marco; Micheli, Fiorenza; Bodini, Antonio

    2017-01-01

    Ecosystem-Based Management (EBM) aims to support the protection of natural ecosystems and to improve economic activities. It requires considering all of the actors interacting in social-ecological systems (e.g., fish and fishers) in the understanding that their interplay determines the dynamic behavior of the single actors as well as that of the system as a whole. Connections are thus central to EBM. Within the ecological dimension of socio-ecological systems, interactions between species define such connections. Understanding how connections affect ecosystem and species dynamics is often impaired by a lack of data. We propose food web network analysis as a tool to help bridge the gap between EBM theory and practice in data-poor contexts, and illustrate this approach through its application to a coastal marine ecosystem in Baja California Sur, Mexico. First, we calculated centrality indices to identify which key (i.e., most central) species must be considered when designing strategies for sustainable resource management. Second, we analyzed the resilience of the system by measuring changes in food web structure due to the local extinction of vulnerable species (i.e., by mimicking the possible effect of excessive fishing pressure). The consequences of species removals were quantified in terms of impacts on global structural indices and species' centrality indices. Overall, we found that this coastal ecosystem shows high resilience to species loss. We identified species (e.g., Octopus sp. and the kelp bass, Paralabrax clathratus) whose protection could further decrease the risk of potential negative impacts of fishing activities on the Baja California Sur food web. This work introduces an approach that can be applied to other ecosystems to aid the implementation of EBM in data-poor contexts.

  2. California State Waters Map Series — Offshore of Point Conception, California

    Science.gov (United States)

    Johnson, Samuel Y.; Dartnell, Peter; Cochrane, Guy R.; Hartwell, Stephen R.; Golden, Nadine E.; Kvitek, Rikk G.; Davenport, Clifton W.; Johnson, Samuel Y.; Cochran, Susan A.

    2018-04-20

    IntroductionIn 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of swath sonar data, acoustic backscatter, seafloor video, seafloor photography, high-resolution seismic-reflection profiles, and bottom-sediment sampling data. The map products display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow subsurface geology.The Offshore of Point Conception map area is in the westernmost part of the Western Transverse Ranges geologic province, which is north of the California Continental Borderland. Significant clockwise rotation—at least 90°—since the early Miocene has been proposed for the Western Transverse Ranges province, and this region is presently undergoing north-south shortening. The offshore part of the map area lies south of the steep south and west flanks of the Santa Ynez Mountains. The crest of the range, which has a maximum elevation of about 340 m in the map area, lies about 5 km north and east of the arcuate shoreline.The onland part of the coastal zone is remote and sparsely populated. The road to Jalama Beach County Park provides the only public coastal access in the entire map area. North of this county park, the coastal zone is part of Vandenberg Air Force Base. South of Jalama Beach County Park, most of the coastal zone is part of the Cojo-Jalama Ranch, purchased by the Nature Conservancy in December 2017. A relatively small part of the coastal zone in the eastern part of the map area lies within the privately owned Hollister Ranch. The nearest significant commercial centers are Lompoc

  3. The vascular flora and floristic relationships of the Sierra de La Giganta in Baja California Sur, Mexico La flora vascular y las relaciones florísticas de la sierra de La Giganta de Baja California Sur, México

    Directory of Open Access Journals (Sweden)

    José Luis León de la Luz

    2008-06-01

    Full Text Available The Sierra de La Giganta is a semi-arid region in the southern part of the Baja California peninsula of Mexico. Traditionally, this area has been excluded as a sector of the Sonoran Desert and has been more often lumped with the dry-tropical Cape Region of southern Baja California peninsula, but this classical concept of the vegetation has not previously been analyzed using formal documentation. In the middle of the last century, Annetta Carter, a botanist from the University of California, began explorations in the Sierra de La Giganta that lasted 24 years, she collected 1 550 specimens and described several new species from this area, but she never published an integrated study of the flora. Our objectives, having developed extensive collections in the same area over the past years, are to provide a comprehensive species list and description of the vegetation of this mountain range. We found a flora of 729 taxa, poorly represented in tree life-forms (3.1%, a moderate level (4.4% of endemism, and the dominance of plants in the sampling plots is composed mainly for legume trees and shrubs. Additionally, using a biogeographical approach, we compare our list with other known lists of plants from 5 areas, 3 in the Cape Region, 1 in the Sonoran Desert, and other in the thornscrub area of NW Mexico. We conclude that the La Giganta flora has a mixed composition, primarily made up of plants shared with the lowlands of the southern Cape Region, but also share an important proportion of the flora with the desert mountains of the central peninsula and some with the Sonoran desertscrub of mainland Mexico. Consequently we support that the La Giganta flora is part of a floristic continuum along the volcanic mountains of the southern peninsula that eventually could be considered a new eco-region in the same peninsular land.La sierra de La Giganta se localiza en el estado de Baja California Sur, México, en una región semi-árida. Tradicionalmente, esta

  4. California State Waters Map Series: offshore of Coal Oil Point, California

    Science.gov (United States)

    Johnson, Samuel Y.; Dartnell, Peter; Cochrane, Guy R.; Golden, Nadine E.; Phillips, Eleyne L.; Ritchie, Andrew C.; Kvitek, Rikk G.; Dieter, Bryan E.; Conrad, James E.; Lorenson, T.D.; Krigsman, Lisa M.; Greene, H. Gary; Endris, Charles A.; Seitz, Gordon G.; Finlayson, David P.; Sliter, Ray W.; Wong, Florence L.; Erdey, Mercedes D.; Gutierrez, Carlos I.; Leifer, Ira; Yoklavich, Mary M.; Draut, Amy E.; Hart, Patrick E.; Hostettler, Frances D.; Peters, Kenneth E.; Kvenvolden, Keith A.; Rosenbauer, Robert J.; Fong, Grace; Johnson, Samuel Y.; Cochran, Susan A.

    2014-01-01

    In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of swath sonar data, acoustic backscatter, seafloor video, seafloor photography, high-resolution seismic-reflection profiles, and bottom-sediment sampling data. The map products display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow (to about 100 m) subsurface geology. The Offshore of Coal Oil Point map area lies within the central Santa Barbara Channel region of the Southern California Bight. This geologically complex region forms a major biogeographic transition zone, separating the cold-temperate Oregonian province north of Point Conception from the warm-temperate California province to the south. The map area is in the southern part of the Western Transverse Ranges geologic province, which is north of the California Continental Borderland. Significant clockwise rotation—at least 90°—since the early Miocene has been proposed for the Western Transverse Ranges province, and geodetic studies indicate that the region is presently undergoing north-south shortening. Uplift rates (as much as 2.0 mm/yr) that are based on studies of onland marine terraces provide further evidence of significant shortening. The cities of Goleta and Isla Vista, the main population centers in the map area, are in the western part of a contiguous urban area that extends eastward through Santa Barbara to Carpinteria. This urban area is on the south flank of the east-west-trending Santa Ynez Mountains, on coalescing alluvial fans and uplifted marine terraces underlain by folded and

  5. Le point sur le sida, l'alimentation et la nutrition | CRDI - Centre de ...

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

    agriculture et l'alimentation ( FAO ), Stuart Gillespie a passé six mois à étudier le lien entre le VIH/sida et la sécurité alimentaire. Il a vite compris que l'épidémie risquait d'avoir, à long terme, des répercussions désastreuses sur la ...

  6. Le point sur les indices du bien-être national | IDRC - International ...

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

    21 janv. 2011 ... Aujourd'hui, de nouveaux indices perfectionnés tracent un portrait plus fouillé de l'état ... des progrès sur le plan économique, mais beaucoup de citoyens ne profitent pas de .... Tobacco Marketing — It's All Smoke and Mirrors.

  7. Cloud amount/frequency, NITRATE and other data from POINT SUR in the NE Pacific from 1991-02-14 to 1991-11-03 (NODC Accession 9300174)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Conductivity, Temperature and Depth (CTD) and other data were collected in NE Pacific (limit-180). Data was collected from Ship POINT SUR and sent to shore via...

  8. Variabilidad de la abundancia de zooplancton en Bahía Magdalena Baja California Sur, México (1997-2001 Zooplankton abundance variability in Magdalena Bay, Baja California Sur, Mexico (1997-2001

    Directory of Open Access Journals (Sweden)

    Sergio Hernández-Trujillo

    2010-01-01

    Full Text Available Se analizaron muestras de zooplancton de 16 campañas oceanógraficas, efectuadas en Bahía Magdalena, Baja California Sur, México, entre agosto de 1997 y marzo de 2001. Se identificó un total de 26 grupos taxonómicos, de los cuales los más abundantes y frecuentes fueron copépodos y quetognatos; en 2000-2001 se observó una tendencia a disminuir entre 10 y 20 el número de grupos de zooplancton. La biomasa zooplanctónica y abundancia de copépodos disminuyeron en el periodo de estudio, en contraste con los quetognatos que tuvieron un ligero aumento. Las fluctuaciones de abundancia de zooplancton no estuvieron relacionadas con la concentración de clorofila-α, a diferencia de los máximos de abundancia de zooplancton, que estuvieron asociados a los cambios de la temperatura superficial del mar. El ciclo estacional de la abundancia del zooplancton en Bahía Magdalena, indicó que en invierno el promedió fue mayor de 65.000 ind 100 m-3 , valor que aumentó en primavera a más de 99.000 ind 100 m-3 , se mantuvo en verano alrededor de 100.000 ind 100 m-3 y en otoño descendió rápidamente a casi 40.000 ind 100 m-3.Zooplankton were studied from 16 oceanographic surveys carried out in Magdalena Bay, Baja California Sur, Mexico, between August 1997 and March 2001. Twenty-six taxonomic groups were identified, the most abundant and frequent of which were copepods and chaetognaths. In 2000-2001, the number of zooplankton groups tended to decrease by 10 to 20. Both zooplankton biomass and copepod abundance declined, unlike chaetognaths, which increased slightly. Fluctuations in zooplankton abundance were independent of the chlorophyll-a concentration, whereas the maximum zooplankton abundances were associated with changes in the sea surface temperature. The seasonal zooplankton abundance cycle in Magdalena Bay indicated that, in winter, the averaged was than 65,000 ind 100 m-3 , a value that increased to more than 99,000 ind 100 m-3 in spring

  9. Analysis of drought and desertification by means of aridity indices and the estimation of water gap in Baja California Sur, Northwest Mexico

    Directory of Open Access Journals (Sweden)

    Enrique Troyo Diéguez

    2013-10-01

    Full Text Available In Baja California Sur (BCS, Mexico, dry-semi warm and warm climates prevail associated to an extreme trend of diurnal temperatures and the environmental dryness. In this State, the maximum summer t exceeds 40° C and the minimum varies from 5 to 12° C, with a minimal for the State of 2° C in winter, at the top of the Sierra de La Laguna; only Los Cabos region has a warm humid climate. Because precipitation in the state is low, oscillating from 310 mm in the southern area of the state to 120 mm per year in the northern portion, predictions and scenarios under climate conditions point to an intensification of droughts. The aim of this work was to carry out a comparative analysis of trends of temperature, precipitation and hydro-environmental aridity among contrasting localities of BCS, by means of the application of Aridity Indexes and the determination of the Standardized Water Gap (BHE, through a numerical scale modification of the De Martonne Index. With the values of temperature and precipitation for the different climate change scenarios for four weather stations, the indicators Hydro Environmental Availability Index (IDHA and Hydro Environmental Drought Index (ISHA were calculated to determine their trend and the consequent BHE, an innovative quantification of wáter deficit, which is proposed in this paper. The máximum value of BHE (10 units, indicating prevalence of drought, is observed from February to June in almost the entire state.

  10. Valoración socioambiental de los recursos naturales: el caso de los recursos minerales en la parte central de Baja California Sur, México

    OpenAIRE

    Luis F. Beltrán Morales; Víctor Sevilla Unda; Macià Blázquez Salom; Federico Salinas Zavala; Felipe García Rodrígez

    2005-01-01

    Se seleccionaron 15 localidades ubicadas en el radio de influencia de dos depósitos evaluados de fosfato, esto con la finalidad de aplicar el método de valoración contingente del recurso y su medio ambiente: el depósito de Tembabichi en el margen del Golfo de California y el depósito de Santo Domingo en la costa del Pacífico en Baja California Sur, México. Se encontró una disposición media a pagar por los habitantes del área de estudio de $29.77 pesos mensuales para colaborar con el medio amb...

  11. Influence de colorants dissous sur le point de clarification de phases nématiques

    OpenAIRE

    Diot , P.; Foitzik , J.K.; Haase , W.

    1985-01-01

    Les systèmes « guest-host » dopés avec des colorants dichroïques sont importants pour certains types d'afficheurs. Ce travail rapporte l'influence des propriétés des colorants dissous sur le comportement de clarification. Les phases nématiques suivantes ont été choisies : CB-7, PCH-7 et ZLI-1083, un mélange eutectique ternaire de PCH-3, PCH-5 et PCH-7; quatre dérivés anthraquinoniques ont été choisis comme colorants. L'influence des colorants sur le comportement de clarification est discutée ...

  12. October 2005 Lidar Point Data of Southern California Coastline: Long Beach to US/Mexican Border

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains lidar point data (UTM, Zone 11) from a strip of Southern California coastline (including water, beach, cliffs, and top of cliffs) from Long...

  13. April 2005 Lidar Point Data of Southern California Coastline: Long Beach to US/Mexican Border

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains lidar point data (latitude/longitude) from a strip of Southern California coastline (including water, beach, cliffs, and top of cliffs) from...

  14. October 2003 Lidar Point Data of Southern California Coastline: Newport Beach to US/Mexican Border

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains lidar point data (Geodetic Coordinates) from a strip of Southern California coastline (including water, beach, cliffs, and top of cliffs) from...

  15. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Central California: ALERTS (Vulnerable Resource Location Points)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains vector points representing locations in Central California that should be highlighted for protection due to the presence of certain highly...

  16. March 2006 Lidar Point Data of Southern California Coastline: Long Beach to US/Mexican Border

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains lidar point data (Geodetic Coordinates) from a strip of Southern California coastline (including water, beach, cliffs, and top of cliffs) from...

  17. September 2004 Lidar Point Data of Southern California Coastline: Long Beach to US/Mexican Border

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains lidar point data (Geodetic Coordinates) from a strip of Southern California coastline (including water, beach, cliffs, and top of cliffs) from...

  18. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Central California: NESTS (Nest Points)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for alcids, diving birds, gulls, terns, pelagic birds, and shorebirds in Central California. Vector points...

  19. California State Waters Map Series-Offshore of Point Reyes, California

    Science.gov (United States)

    Watt, Janet T.; Dartnell, Peter; Golden, Nadine E.; Greene, H. Gary; Erdey, Mercedes D.; Cochrane, Guy R.; Johnson, Samuel Y.; Hartwell, Stephen R.; Kvitek, Rikk G.; Manson, Michael W.; Endris, Charles A.; Dieter, Bryan E.; Sliter, Ray W.; Krigsman, Lisa M.; Lowe, Erik; Chinn, John L.; Watt, Janet T.; Cochran, Susan A.

    2015-01-01

    This publication about the Offshore of Point Reyes map area includes ten map sheets that contain explanatory text, in addition to this descriptive pamphlet and a data catalog of geographic information system (GIS) files. Sheets 1, 2, and 3 combine data from four different sonar surveys to generate comprehensive high-resolution bathymetry and acoustic-backscatter coverage of the map area. These data reveal a range of physiographic features (highlighted in the perspective views on sheet 4) such as the flat, sediment-covered seafloor in Drakes Bay, as well as abundant “scour depressions” on the Bodega Head–Tomales Point shelf (see sheet 9) and local, tectonically controlled bedrock uplifts. To validate geological and biological interpretations of the sonar data shown in sheets 1, 2, and 3, the U.S. Geological Survey towed a camera sled over specific offshore locations, collecting both video and photographic imagery; these “ground-truth” surveying data are summarized on sheet 6. Sheet 5 is a “seafloor character” map, which classifies the seafloor on the basis of depth, slope, rugosity (ruggedness), and backscatter intensity and which is further informed by the ground-truth-survey imagery. Sheet 7 is a map of “potential habitats,” which are delineated on the basis of substrate type, geomorphology, seafloor process, or other attributes that may provide a habitat for a specific species or assemblage of organisms. Sheet 8 compiles representative seismic-reflection profiles from the map area, providing information on the subsurface stratigraphy and structure of the map area. Sheet 9 shows the distribution and thickness of young sediment (deposited over the last about 21,000 years, during the most recent sea-level rise) in both the map area and the larger Salt Point to Drakes Bay region, interpreted on the basis of the seismic-reflection data, and it identifies the Offshore of Point Reyes map area as lying within the Bodega Head–Tomales Point shelf, Point

  20. The application of prototype point processes for the summary and description of California wildfires

    Science.gov (United States)

    Nichols, K.; Schoenberg, F.P.; Keeley, J.E.; Bray, A.; Diez, D.

    2011-01-01

    A method for summarizing repeated realizations of a space-time marked point process, known as prototyping, is discussed and applied to catalogues of wildfires in California. Prototype summaries are constructed for varying time intervals using California wildfire data from 1990 to 2006. Previous work on prototypes for temporal and space-time point processes is extended here to include methods for computing prototypes with marks and the incorporation of prototype summaries into hierarchical clustering algorithms, the latter of which is used to delineate fire seasons in California. Other results include summaries of patterns in the spatial-temporal distribution of wildfires within each wildfire season. ?? 2011 Blackwell Publishing Ltd.

  1. Comparative analysis of the reproductive strategy of lion's paw scallop Nodipecten subnodosus in Baja California Sur, Mexico

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    Marco A Angel-Dapa

    2015-07-01

    Full Text Available The reproductive strategy of lion's paw scallop Nodipecten subnodosus was evaluated in a culturing system in Bahía Tortugas, Baja California Sur, Mexico during an annual cycle, comparing its response with data previously reported at other localities. High frequencies of ripe gonads throughout the year indicate that reproduction was continuous, with two main ripening/spawning events: July-September and December-March. A continuous breeding is also reported for the species in Bahía Magdalena, Bahía Juncalito, and Bahía de Los Angeles. These eutrophic areas are Biological Active Centers where gametogenesis appears to be regulated by the energy taken from recently ingested food following an opportunistic strategy. However, the digestive gland index decreased and the muscle indices increased during one of the breeding peaks, suggesting that some stored reserves are also used to sustain gametogenesis (conservative strategy partially. High incidences of atretic oocytes are likely associated with atypical daily variations in water temperature from May through September (12 to 33°C, or with stressful conditions in the culturing system in summer. Despite this, the culturing system set in Bahía Tortugas appears beneficial for a continuous reproduction of N. subnodosus.

  2. Marine diet and tobacco exposure affects mercury concentrations in pregnant women (I from Baja California Sur, Mexico

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    Ramón Gaxiola-Robles

    2014-01-01

    Full Text Available Seafood provides essential polyunsaturated fatty acids (PUFA and other nutrients to pregnant women and their fetus(es while a diet rich in finfish can be a major pathway of monomethyl mercury (MeHg+ exposure. We measured total mercury concentration ([THg] in hair samples provided by 75 women in Baja California Sur (BCS to assess its relationship with age, parity, tobacco smoke exposure, and diet based on survey methodologies. Generalized linear models (GLM were used to explain the possible association of the different variables with [THg] in hair. Median [THg] in hair was 1.52 μg g−1, ranging from 0.12 to 24.19 μg g−1 and varied significantly by segment. Approximately 72% (54/75 of those evaluated exceed 1 μg g−1 [THg] and 8% (6/75 exceed 5 μg g−1 [THg] in hair. Although frequency of fish consumption contributed significantly to explaining hair [THg], fish consumption only explained 43% of [THg] in a GLM incorporating tobacco exposure and body mass index. This study establishes possible relationships among multiple potential sources of exposure and other factors related to [THg] in hair of women in the prenatal period. A more detailed examination of other sources of exposure and factors contributing to [THg] is warranted.

  3. Geochemistry of Dissolved Trace Metals in the Waters of Bahia Magdalena, Baja California Sur, Pacific Coast, Mexico

    Science.gov (United States)

    Suresh Babu, S.

    2016-12-01

    Forty two samples were acquired from the surface and bottom water profiles along 5 transects spread over Bahia Magdalena lagoon, Baja California Sur to assess the behavior of trace metals in a high influenced upwelling region on the Pacific coast. To elaborate the fate of metals, also the physico-chemical parameters (pH, temperature, salinity, conductivity, dissolved oxygen). Determination of the concentrations of trace metals (Fe, Mn, Cr, Cu, Co, Pb, Ni, Zn, Cd As, Hg) were measured using Atomic absorption spectrometry. The results demonstrated high values of As, Ni and Co which is attributed to the local geology and phosphate deposits. Low values of Fe and Mn are attested to the oxic conditions of the lagoon which are responsible for the oxidation of Fe and Mn. The region witnesses raised temperatures (28.92ºC) and salinities of 35.2 PSU for its arid climatic conditions and high rates of evaporation. In general, the region presented minor quantities of dissolved trace metals due to dispersion and high intense interaction with the open sea. The results were also compared with other studies to understand the enrichment pattern in this side of the pacific coast which experiences various geothermal activities and upwelling phenomenon.

  4. Baseline heavy metals and metalloid values in blood of loggerhead turtles (Caretta caretta) from Baja California Sur, Mexico.

    Science.gov (United States)

    Ley-Quiñónez, C; Zavala-Norzagaray, A A; Espinosa-Carreón, T L; Peckham, H; Marquez-Herrera, C; Campos-Villegas, L; Aguirre, A A

    2011-09-01

    Environmental pollution due to heavy metals is having an increased impact on marine wildlife accentuated by anthropogenic changes in the planet including overfishing, agricultural runoff and marine emerging infectious diseases. Sea turtles are considered sentinels of ecological health in marine ecosystems. The objective of this study was to determine baseline concentrations of zinc, cadmium, copper, nickel, selenium, manganese, mercury and lead in blood of 22 clinically healthy, loggerhead turtles (Caretta caretta), captured for several reasons in Puerto López Mateos, Baja California Sur, Mexico. Zinc was the most prevalent metal in blood (41.89 μg g⁻¹), followed by Selenium (10.92 μg g⁻¹). The mean concentration of toxic metal Cadmium was 6.12 μg g⁻¹ and 1.01μg g⁻¹ respectively. Mean concentrations of metals followed this pattern: Zn>Se>Ni>Cu>Mn>Cd>Pb and Hg. We can conclude that blood is an excellent tissue to measure in relatively non-invasive way baseline values of heavy metals in Caretta caretta. Copyright © 2011 Elsevier Ltd. All rights reserved.

  5. Distribución espacial y temporal de aves playeras (Orden: Charadriiformes en Laguna San Ignacio, Baja California Sur, México Temporal and spatial distribution of shorebirds (Charadriiformes at San Ignacio Lagoon, Baja California Sur, Mexico

    Directory of Open Access Journals (Sweden)

    Luis Francisco Mendoza

    2013-03-01

    Full Text Available Con la pérdida o degradación de humedales han declinado las poblaciones de algunas especies tales como las aves playeras. En vista de que ha crecido el interés internacional por los estudios ecológicos sobre estas especies, se determinó la abundancia, distribución y riqueza espacio-temporal de las aves playeras en Laguna San Ignacio, Península de Baja California. Se realizaron 12 censos mensuales (octubre 2007-septiembre 2008 en el perímetro interno de la laguna; la cual se dividió en cuatro zonas, dos al norte y dos al sur. Temporalmente las abundancias menores se presentaron en mayo (1 585 aves y las mayores en octubre (47 410. Las especies más abundantes fueron: el picopando canelo (Limosa fedoa; 55% de los registros totales, el playero occidental (Calidris mauri; 23% y el playero pihuiuí (Tringa semipalmata; 10%. Estas especies fueron más abundantes en otoño. El picopando canelo y el playero pihuiuí estabilizaron sus números en invierno y primavera y estuvieron presentes en verano en bajos números, el playero occidental mostró oscilaciones notorias. Se presentan los primeros reportes del playero rojizo del Pacifico (Calidris canutus roselaari para la zona. La riqueza y abundancia estuvieron influenciadas temporal y espacialmente por las aves migratorias. Las mayores abundancias se presentaron al sur de la laguna, probablemente por la disponibilidad del alimento. Los resultados presentes permitieron incluir al área en la Red Hemisférica de Reservas para las Aves Playeras como sitio de importancia internacional.Baja California Peninsula has several wetlands that represent important ecosystems for shorebirds. San Ignacio Lagoon is one of these sites, and supports 10% of the total abundance of shorebirds reported in this Peninsula. Since there is few information about this group in this area, we studied spatial and temporal changes in abundance and distribution of shorebirds in San Ignacio Lagoon. For this, we conducted twelve

  6. Evolution of the east-central San Jose del Cabo basin, Baja California Sur, Mexico

    Science.gov (United States)

    McTeague, M. S.; Umhoefer, P. J.; Schwennicke, T.; Ingle, J. C.; Cortes Martinez, M.

    2006-12-01

    The San Jose del Cabo basin at the southern tip of the Baja California peninsula records the early tectonic evolution of the west side of the Gulf of California. This study focused on the east central margin of the basin. The basal La Calera Formation unconformably overlies Cretaceous granite and consists of conglomerate, pebbly sandstone and conglomerate, and sandstone deposited in alluvial fans and fan-deltas. Deposition of the La Calera Formation was from ca. 9-14 Ma. The lower member of the Trinidad Formation was deposited beginning ca. 9-13 Ma and consists of sandstone, mudstone, and shelly mudstone deposited in nearshore and estuarine environments. These age estimates are based on sedimentation rates and foraminifera and coccoliths from the NN 11A nannozone (7.4 8.6 Ma, GTS 2004). The middle member of the Trinidad Formation consists of deeper water mudstones deposited by turbidity currents and suspension settling in a shelf to slope and conglomerates deposited by submarine debris flows on the shelf. The basin began earlier than previously thought. The oldest marine rocks are ca.9-13 Ma, while sedimentation on the east side began at ca. 9-14 Ma, synchronous with estimates of initiation of offset on the San Jose del Cabo fault. The Zapote fault is a down-to-the-east normal and sinistral-oblique fault that exposes a wedge of granite and older strata in the footwall to the west. The fault was active during sedimentation in the late Miocene and possibly later. The fault divides the study area into an eastern hanging wall subbasin and western footwall subbasin. The eastern subbasin formed an embayment in the eastern margin of the Cabo basin. A regional flooding surface (ca. 8 Ma) can be correlated across the fault that marks a major marine incursion. Depositional systems evolved rapidly from coarse-grained terrestrial systems to fine-grained marine and estuarine systems. The Cabo basin provides an excellent analogue for comparison with offshore basins, which are

  7. Seasonal diet composition of Fundulus lima (Cyprinodontiformes: Fundulidae in two oasis systems of Baja California Sur, Mexico

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    Dinora Acosta Zamorano

    2011-12-01

    Full Text Available Fundulus lima inhabits river drainage systems and is threatened after the introduction of cichlids in the area. To support conservation programs, the spatial and temporal variation of the diet composition of this endangered killifish, was determined in two oasis systems of Baja California Sur, Mexico (San Ignacio and La Purisima river drainages, during rainy and dry seasons. F. lima was captured by using passive and active capture techniques. A total of 192 stomach contents of F. lima was analyzed. The contribution of each prey item in the diet composition was quantified by means of the indices of occurrence frequency (% OF, numerical (%N and volume (%V percentages. The relative importance of each prey item was determined according to the percentage of the Relative Importance Index (%RII. The similarity of the diet was calculated between hydrological basins (populations combined by basin, seasons (rainy versus dry months, sexes and size classes, by using Schoener’s resource overlap index. We used two ecological indices to determine the type of feeding strategy exhibited by the fish: (1 niche breadth of Levins and (2 proportional similarity of Feisinger. Sand was the most abundant item in the stomach content of killifishes from both drainages (39% and 47%, respectively. Diet composition was similar for both drainages (74% as well as among their respective size classes; however, it was different between sexes. In both drainages, F. lima predated mainly on diatom algae, dipterous and trichopteran larvae, and fish scales during the dry season; while it preferred dipterous larvae, filamentous algae and ostracods in the rainy season. A feeding strategy of opportunist type was exhibited by F. lima during the rainy season, changing to specialist type during the dry season. This information will be the basis for future investigations related to the conservation of this endangered species and its habitat. Rev. Biol. Trop. 59 (4: 1669-1678. Epub 2011

  8. Baseline heavy metals and metalloid values in blood of loggerhead turtles (Caretta caretta) from Baja California Sur, Mexico

    International Nuclear Information System (INIS)

    Ley-Quinonez, C.; Zavala-Norzagaray, A.A.; Espinosa-Carreon, T.L.; Peckham, H.; Marquez-Herrera, C.; Campos-Villegas, L.; Aguirre, A.A.

    2011-01-01

    Highlights: → We report baseline levels of selected heavy metals in blood of Pacific loggerhead turtles. → Blood was used to measure in a relatively non-invasive way baseline values of heavy metals. → Zn and Cd were found in high concentrations compared to levels reported in other parts of the world. → Cu concentrations in blood are high as they relate to concentrations in muscle. → No correlations were found between of heavy metals and metalloids analyzed and the size of the turtles. - Abstract: Environmental pollution due to heavy metals is having an increased impact on marine wildlife accentuated by anthropogenic changes in the planet including overfishing, agricultural runoff and marine emerging infectious diseases. Sea turtles are considered sentinels of ecological health in marine ecosystems. The objective of this study was to determine baseline concentrations of zinc, cadmium, copper, nickel, selenium, manganese, mercury and lead in blood of 22 clinically healthy, loggerhead turtles (Caretta caretta), captured for several reasons in Puerto Lopez Mateos, Baja California Sur, Mexico. Zinc was the most prevalent metal in blood (41.89 μg g -1 ), followed by Selenium (10.92 μg g -1 ). The mean concentration of toxic metal Cadmium was 6.12 μg g -1 and 1.01 μg g -1 respectively. Mean concentrations of metals followed this pattern: Zn > Se > Ni > Cu > Mn > Cd > Pb and Hg. We can conclude that blood is an excellent tissue to measure in relatively non-invasive way baseline values of heavy metals in Caretta caretta.

  9. Geochemical characteristics of water from the reservoir of the hydrothermal system of Las Tres Virgenes, Baja California Sur, Mexico; Caracteristicas geoquimicas de las aguas del reservorio del sistema hidrotermal actual de Las Tres Virgenes, Baja California Sur, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Gonalez Partida, Eduardo [Universidad Nacional Autonoma de Mexico (Mexico); Tello Hinojosa, Enrique [Comision Federal de Electricidad (Mexico); Pal Verma, Mahendra [Instituto de Investigaciones Electricas (Mexico)

    2001-03-01

    The Las Tres Virgenes geothermal field is a liquid dominated system. The separated produced by the wells are sodium-chloride type, which is a characteristic of totally equilibrated geothermal brine. The temperature of water-rock interaction in the reservoir is 280 Celsius degrees. the chemical composition of gases corresponds to the one expected in a geothermal environment. The CO{sub 2} is the predominating gas and it is superior in 90% in weight to the total of existing gases. The gas contents is less than 1% in weight, in the case of the wells LV-1 and LV-3. It is also possible to conclude that the gases are in equilibrium with the liquid phase at a temperature of 280 Celsius degrees. With respect to water quality, it is saline, from high to very high and the contents of exchangeable sodium is also very high, resulting in waters not fit for agricultural usage. [Spanish] El yacimiento geotermico de Las Tres Virgenes, en Baja California Sur, Mexico, es un sistema de liquido dominante, en donde el agua separada producida por los pozos presenta un caracter clorurado-sodico caracteristico de una salmuera de origen geotermico totalmente equilibrada. El sistema agua-roca se encuentra en equilibrio a una temperatura de 280 grados centigrados , dicha temperatura son congruentes con las estimadas para las fases gaseosas y liquidas. La composicion quimica de los gases corresponde a la esperada en un ambiente geotermico. El CO{sub 2} es el predominante y es superior a 90% en peso del total de los gases presentes. El contenido de gas es menor de 1% en peso en el caso de los pozos LV-1 y LV-3. Tambien se puede concluir que los gases estan en equilibrio en las fases liquidas a una temperatura de 280 grados centigrados. Con respecto a la calidad del agua, presenta una salinidad de alta a muy alta y el contenido de sodio intercambiable tambien es muy alto, por lo que dichas aguas no son muy aptas para el cultivo.

  10. Fauna de arañas del suelo de una comunidad árida-tropical en Baja California Sur, México Ground surface spider fauna in an arid tropical community in Baja California Sur, Mexico

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    María Luisa Jiménez

    2010-08-01

    Full Text Available Se describe la temporalidad y diversidad de arañas del suelo del matorral sarcocaule en la región del Cabo en Baja California Sur. Durante 1991-1992 se realizaron colectas semanales por medio de trampas de caída. Se capturaron 4 322 ejemplares de 53 especies. Las familias con mayor abundancia fueron Miturgidae (42.2%, Oonopidae (23.5%, Caponiidae (8.0% y Gnaphosidae (7.9%. Las especies más abundantes fueron Syspira tigrina Chamberlin (37.1%; Oonops nov. sp. (13.7%, Scaphiella hespera Chamberlin (7.8% y Tarsonops sternalis Chamberlin (5.2%, que constituyeron el 63.7% del total de individuos. Gnaphosidae fue la más rica en especies (11, seguida por Salticidae (7. La riqueza de especies fue constante durante todo el año, con un ligero ascenso en el verano (29 y una ligera disminución en el invierno (24. La diversidad por estación del año se mantuvo en un intervalo de H'= 3.3 -3.7. La abundancia relativa se incrementó en primavera y otoño. La mayor riqueza específica se encontró en otoño. La abundancia relativa y la diversidad de arañas se pueden considerar altas, a pesar del fuerte dominio de la familia Miturgidae. En la mayoría de las especies, la distribución mostró una marcada estacionalidad.Seasonal distribution, specific richness, and diversity of xeric shrub ground spiders were studied at a site in the Cape Region. Weekly collections of spiders were made in 1991-1992 using pit-fall traps. We captured 4 322 specimens in 53 families. Families with the highest number of individuals were: Miturgidae (42% Oonopidae (23.5%, Caponiidae (8.0%, and Gnaphosidae (7.9%. The most abundant species were Syspira tigrina Chamberlin (37.1%; Oonops nov. sp. (13.7%, Scaphiella hespera Chamberlin (7.8%, and Tarsonops sternalis Chamberlin (5.2%, representing 63.7% of the total specimens captured. Gnaphosidae was the richest in species (11 followed by Salticidae (7. Species richness was nearly constant during all the year, with a small increase in

  11. Diálogo de saberes ambientales entre Europa-América. Agroecosistemas oasianos en Baja California Sur s. XVIII-XX

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    Ortega Santos, Antonio

    2015-06-01

    Full Text Available During two centuries, Oasis Communities of Baja California had been living in a intense connection with their environment. With the arrival of Jesuits, a deep extermination of biocultural heritage and socioenvironmental knowledges of these communities, repopulating of vegetable garden and drylands with people –in many cases, settler from the south of Spain- reconstructing the territorial identity as ranchera to manage the ecosystems under pattern of self-competence and under-consumption, due to the strong environmental constraints of lower california agro-ecosystem. At the beginning of XXIth century, Oasis Communities are fighting against the loss of community heritage, embedded in Eden with enormous bio-cultural dimension, rescuing and keeping crops from Europe with the Jesuits arrival. This frame allow us to draw a colonization process of ecosystems during contemporary age.Desde hace más de dos siglos, las Comunidades Oasianas de Baja California Sur han estado viviendo en íntima conexión con su medio ambiente. Con la llegada de los Jesuitas se produjo un intenso proceso de exterminio biocultural de los saberes sociambientales de esas comunidades, repoblando estas huertas y llanos con población -en muchos casos colonos- procedentes del sur de España-, redimensionado la identidad territorial como ranchera que gestionó los ecosistemas bajo pautas de autosuficiencia y subconsumo, dadas las fuertes constricciones socioambientales de agroecosistemas sudcalifornianos. A inicios del siglo XXI, las comunidades oasianas luchan contra la pérdida de sus saberes comunitarios, enclavados en edenes de enorme potencial biocultural, rescatando y manteniendo los cultivos traídos con la llegada de los jesuitas. Este marco nos permite describir un proceso de colonización de los ecosistemas a lo largo de los dos últimos siglos.

  12. Re-introduction of tule elk to Point Reyes National Seashore, California, USA

    Science.gov (United States)

    Gogan, Peter J.; McCrea A. Cobb,; Gates, Natalie B.; Barrett, Reginald H.; Soorae, Pritpal S.

    2013-01-01

    Tule elk (Cervus elaphus nannodes), a subspecies endemic to California, was historically found in large herds throughout much of central and coastal California. Market hunting during the California Gold Rush decimated these herds, and by 1895, only two to 10 elk remained. This remnant group was protected and served as the source for early relocation efforts (McCullough, 1971). Early efforts were generally unsuccessful but did establish a herd in California’s Owens Valley, outside their historical range, in 1933. The herd grew rapidly and supported six controversial hunts between 1943 and 1969. In an effort to limit hunting, concerned preservationists formed the Committee for the Preservation of Tule Elk in 1960. Public pressure resulted in the California State Legislature passing a law in 1971 that halted hunting until either state-wide numbers reached 2,000, or no further unoccupied elk habitat existed. This law prompted the California Department of Fish and Game to begin reintroducing tule elk throughout their former range. In 1976, the U.S. Congress passed a resolution that concurred with state law and directed federal agencies to make lands available for reintroductions within the subspecies’ historical range. Point Reyes National Seashore was identified as a potential translocation site.

  13. Comparative evaluation of SUV, tumor-to-blood standard uptake ratio (SUR), and dual time point measurements for assessment of the metabolic uptake rate in FDG PET.

    Science.gov (United States)

    Hofheinz, Frank; Hoff, Jörg van den; Steffen, Ingo G; Lougovski, Alexandr; Ego, Kilian; Amthauer, Holger; Apostolova, Ivayla

    2016-12-01

    We have demonstrated recently that the tumor-to-blood standard uptake ratio (SUR) is superior to tumor standardized uptake value (SUV) as a surrogate of the metabolic uptake rate K m of fluorodeoxyglucose (FDG), overcoming several of the known shortcomings of the SUV approach: excellent linear correlation of SUR and K m from Patlak analysis was found using dynamic imaging of liver metastases. However, due to the perfectly standardized uptake period used for SUR determination and the comparatively short uptake period, these results are not automatically valid and applicable for clinical whole-body examinations in which the uptake periods (T) are distinctly longer and can vary considerably. Therefore, the aim of this work was to investigate the correlation between SUR derived from clinical static whole-body scans and K m-surrogate derived from dual time point (DTP) measurements. DTP (18)F-FDG PET/CT was performed in 90 consecutive patients with histologically proven non-small cell lung cancer (NSCLC). In the PET images, the primary tumor was delineated with an adaptive threshold method. For determination of the blood SUV, an aorta region of interest (ROI) was delineated manually in the attenuation CT and transferred to the PET image. Blood SUV was computed as the mean value of the aorta ROI. SUR values were computed as ratio of tumor SUV and blood SUV. SUR values from the early time point of each DTP measurement were scan time corrected to 75 min postinjection (SURtc). As surrogate of K m, we used the SUR(T) slope, K slope, derived from DTP measurements since it is proportional to the latter under the given circumstances. The correlation of SUV and SURtc with K slope was investigated. The prognostic value of SUV, SURtc, and K slope for overall survival (OS) and progression-free survival (PFS) was investigated with univariate Cox regression in a homogeneous subgroup (N=31) treated with primary chemoradiation. Correlation analysis revealed for both, SUV and SURtc, a

  14. Lunar phase and catch success of the striped marlin (Tetrapturus audax in sport fishing at Los Cabos, Baja California Sur, Mexico

    Directory of Open Access Journals (Sweden)

    G. Ponce-Díaz

    2003-06-01

    Full Text Available The influence of the lunar phases on the catch-per-unit effort (CPUE of the striped marlin (Tetrapturus audax captured by the Cabo San Lucas, Baja California Sur, Mexico sport-fishing fleet from October 1987 to June 1989 was analyzed. The information is from 3 377 fishing trips by 13 vessels that represent about 10 % of the fleet. The analysis of the CPUE showed a maximum in January 1988 and a minimum in February 1989. Taking into account the knowledge of the factors that had influence on the fishing success is important in the resource management. No significant difference during the full moon compared with results during other lunar phases was found.Se analizó la influencia de las fases lunares sobre la captura por unidad de esfuerzo en el marlín rayado (Tetraptus audax capturado por la flota deportiva en Cabo San Lucas, Baja California Sur, desde octubre de 1987 a junio de 1989. La información de 3377 viajes de pesca por 13 embarcaciones que representan cerca de un 10% de la flota. El análisis mostró un máximo en enero de 1988 y un mínimo en febrero de 1989. Tomar en consideración el conocimiento de los factores que tuvieron influencia en el éxito en la pesca es importante en el manejo de los recursos. No se encontró diferencias significativas durante la luna llena comparado con los resultados obtenidos durante las otras fases de la luna.

  15. Valoración socioambiental de los recursos naturales: el caso de los recursos minerales en la parte central de Baja California Sur, México

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    Luis F. Beltrán Morales

    2012-02-01

    Full Text Available Se seleccionaron 15 localidades ubicadas en el radio de influencia de dos depósitos evaluados de fosfato, esto con la finalidad de aplicar el método de valoración contingente del recurso y su medio ambiente: el depósito de Tembabichi en el margen del Golfo de California y el depósito de Santo Domingo en la costa del Pacífico en Baja California Sur, México. Se encontró una disposición media a pagar por los habitantes del área de estudio de $29.77 pesos mensuales para colaborar con el medio ambiente de su región. Hipotéticamente se daría una valoración contingente en el total del área de estudio de $227 859.58 pesos mensuales, es decir, $2 734 314.9 pesos anuales. Es una cantidad considerable de recursos para contribuir a mejoras en el medio ambiente por comunidades rurales con signos de marginación socioeconómica.

  16. Alternatives Sud, “L’offensive des marchés sur l’université. Points de vue du Sud”

    Directory of Open Access Journals (Sweden)

    Jean-Émile Charlier

    2011-03-01

    Full Text Available Un nouvel ordre mondial de l’enseignement supérieur est de toute évidence en gestation, le processus de Bologne en est une manifestation parmi beaucoup d’autres. Les analyses de ce phénomène restent trop rares, l’initiative d’Alternatives Sud arrive donc à point nommé. Le numéro est introduit par N. Hirtt, dont les thèses sur l’influence que la table ronde des industriels (ERT exerce sur l’évolution de nos systèmes éducatifs sont connues. Dans son éditorial fort bien documenté, il dresse le ...

  17. Reconnaissance radiological characterization for the White Point Nike Missile Site, San Pedro, California

    International Nuclear Information System (INIS)

    Espegren, M.L.; Jensen, M.K.; Pierce, G.A.; Smith, S.M.

    1993-01-01

    This report is the result of field work performed at the former White Point Nike Missile Site, San Pedro, California. The Hazardous Waste Remedial Actions Program tasked the Oak Ridge National Laboratory Pollutant Assessments Group in Grand Junction, Colo., with this project. The objective was to determine whether or not radioisotopes possibly associated with past Department of Defense (DOD) operations were present and within accepted background levels. The radiation survey was accomplished by performing three independent radiation surveys, both outdoors and indoors, and random soil sampling. Initially, the site was land surveyed to develop a grid block system. A background radiation investigation was performed out in the San Pedro area

  18. Tracking an oil slick from multiple natural sources, Coal Oil Point, California

    International Nuclear Information System (INIS)

    Leifer, Ira; Luyendyk, Bruce; Broderick, Kris

    2006-01-01

    Oil slicks on the ocean surface emitted from natural marine hydrocarbon seeps offshore from Coal Oil Point in the Santa Barbara Channel, California were tracked and sampled over a 2-h period. The objectives were to characterize the seep oil and to track its composition over time using a new sampling device, a catamaran drum sampler (CATDRUMS). The sampler was designed and developed at UCSB. Chromatograms showed that oil originating from an informally named, very active seep area, Shane Seep, primarily evolved during the first hour due to mixing with oil originating from a convergence zone slick surrounding Shane Seep. (author)

  19. Tracking an oil slick from multiple natural sources, Coal Oil Point, California

    Energy Technology Data Exchange (ETDEWEB)

    Leifer, Ira [Marine Sciences Institute, University of California, Santa Barbara, CA 93106 (United States); Luyendyk, Bruce [Department of Geological Sciences, University of California, Santa Barbara, CA 93106 (United States); Broderick, Kris [Exxon/Mobil Exploration Company, 13401 N. Freeway, Houston, TX 77060 (United States)

    2006-06-15

    Oil slicks on the ocean surface emitted from natural marine hydrocarbon seeps offshore from Coal Oil Point in the Santa Barbara Channel, California were tracked and sampled over a 2-h period. The objectives were to characterize the seep oil and to track its composition over time using a new sampling device, a catamaran drum sampler (CATDRUMS). The sampler was designed and developed at UCSB. Chromatograms showed that oil originating from an informally named, very active seep area, Shane Seep, primarily evolved during the first hour due to mixing with oil originating from a convergence zone slick surrounding Shane Seep. (author)

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

    Science.gov (United States)

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

    2015-01-01

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

  1. Desalination and Water Security: The Promise and Perils of a Technological Fix to the Water Crisis in Baja California Sur, Mexico

    Directory of Open Access Journals (Sweden)

    Jamie McEvoy

    2014-10-01

    Full Text Available Across the globe, desalination is increasingly being considered as a new water supply source. This article examines how the introduction of desalinated water into the municipal water supply portfolio has affected water security in the coastal tourist city of Cabo San Lucas in Baja California Sur (BCS, Mexico. It also analyses the competing discourses surrounding desalination in the region and discusses alternative water management options for achieving water security. This article challenges the notion that desalination is an appropriate and sufficient technological solution for arid regions. The findings provide evidence of increased yet delimited water security at a neighbourhood scale while identifying new vulnerabilities related to desalination, particularly in the context of the global South. This article concludes that implementing a technological fix on top of a water management system that is plagued with more systemic and structural problems does little to improve long-term water management and is likely to foreclose or forestall other water management options. This multi-scalar analysis contributes to the emerging literature on water security by considering both a narrow and broad framing of water security and identifying a range of factors that influence water security.

  2. Interacciones de pesquerías ribereñas en Bahía Magdalena-Almejas, Baja California Sur

    Directory of Open Access Journals (Sweden)

    Miguel A. Ojeda Ruiz de la Peña

    2012-01-01

    Full Text Available Con el fin de aportar al desarrollo de un modelo conceptual sobre la pesca ribereña o artesanal en el área de Bahía Magdalena-Almejas, Baja California Sur, se jerarquizó la importancia de 14 pesquerías de la región. La calificación se basó en un análisis cualitativo por puntos y en la estimación de un índice de importancia relativa, con indicadores como los promedios de captura, valor y frecuencia de registro de especies objetivo en desembarcos de embarcaciones menores, de 1998 a 2009; entre ellas están: almeja catarina, escama, camarón, callo de hacha, tiburón, jaiba, calamar, almeja pata de mula, rayas, lisa, pulpo, abulón, langosta y caracol chino. La interacción temporal entre varias de ellas es controlada por vedas oficiales, pero cuando ocurre se reconocen posibles efectos por pesca incidental e ilegal y modificaciones al ecosistema.

  3. Can the Adoption of Desalination Technology Lead to Aquifer Preservation? A Case Study of a Sociotechnical Water System in Baja California Sur, Mexico

    Directory of Open Access Journals (Sweden)

    Jamie McEvoy

    2015-09-01

    Full Text Available There is growing concern about the sustainability of groundwater supplies worldwide. In many regions, desalination—the conversion of saline water to freshwater—is viewed as a way to increase water supplies and reduce pressure on overdrawn aquifers. Using data from reports, articles, interviews, a survey, and a focus group, this paper examines if, and how, the adoption of desalination technology can lead to aquifer preservation in Baja California Sur (BCS, Mexico. The paper outlines existing institutional arrangements (i.e., laws, rules, norms, or organizations surrounding desalination in BCS and concludes that there are currently no effective mechanisms to ensure aquifer preservation. Four mechanisms that could be implemented to improve groundwater management are identified, including: 1 integrated water-and land-use planning; 2 creation of an institute responsible for coordinated and consistent planning; 3 improved groundwater monitoring; and 4 implementation of water conservation measures prior to the adoption of desalination technology. This paper concludes that viewing water technologies, including desalination, as sociotechnical systems—i.e., a set of technological components that are embedded in complex social, political, and economic contexts—has the potential to create a more sustainable human–environment–technology relationship. By assessing desalination technology as a sociotechnical system, this study highlights the need to focus on institutional development and capacity building, especially within local water utilities and urban planning agencies.

  4. Diet of blue marlin Makaira mazara off the coast of Cabo San Lucas, Baja California Sur, Mexico

    OpenAIRE

    Abitia Cárdenas, Leonardo Andrés; Galván Magaña, Felipe; Gutiérrez Sánchez, Francisco Javier; Rodríguez Romero, Jesús; Aguilar Palomino, Bernabé; Moehl Hitz, Almiae

    1999-01-01

    Analysis of the stomach contents of 204 blue marlin (Makaira mazara) caught by the sport-fishing fleet of Cabo San Lucas in the southern Gulf of California is presented. The specimens sampled were caught during the summer and fall of 1987, 1988, and 1989 when the sea is warm (28-30°C). Blue marlin were found to feed on 35 prey species, 3 of which represented 90% of the total stomach contents by frequency of occurrence. The main prey were epipelagic organisms from the oceanic zone and demersal...

  5. Análisis de los flujos turísticos en el corredor Los Cabos, Baja California Sur

    Directory of Open Access Journals (Sweden)

    Álvaro López López

    2001-09-01

    Full Text Available The Los Cabos corridor is one of the most dynamic tourism spaces in Mexico. In, around and towards this corridor, intense flows of tourists, migrants, merchandises and information takes place. Diverse in their territorial Impact as they are, most of them act as a link between the southernmost tip of the Baja peninsula and the state of California, in the United States. This is provoking a dissociation of this region of Mexico in its relation with the rest of the country that, to a certain extent, leads to a loss of national sovereignty.

  6. Crecimiento y mortalidad de la madreperla Pinctada mazatlanica en poblaciones naturales del litoral oriental de Baja California Sur, México

    Directory of Open Access Journals (Sweden)

    Humberto Wright-López

    2009-06-01

    Full Text Available La madreperla Pinctada mazatlanica esta en veda desde 1939 y considerada en peligro de extinción, cambiando su categoría a protección especial en 1994. El presente estudio estima su crecimiento y mortalidad en bancos naturales en el periodo 1992-93 y 1997-99. Se registró el alto de la concha de ostras en poblaciones desde el paralelo 28º a 23º LN del litoral oriental de Baja California Sur, abarcando 38 estaciones, 2 bahías y 6 islas. La longitud máxima estimada fue 187.22mm (179.83-195.81mm, P > 0.95. Las frecuencias de longitud se ordenaron en un "año virtual". Los parámetros de crecimiento de von Bertalanffy estimados con el programa ELEFAN I fueron: o = 193.31mm, k=0.54año-1, t0= -0.1805 años, C=0.49 y WP=0.75; el índice de desempeño del crecimiento fue’=4.305. La mortalidad total fue de Z=2.03 año-1 por longitud convertida a curva de captura. La regresión peso total y la altura tuvo la expresión W(i=0.0005418 * L(i2.7301. Los parámetros de crecimiento fueron similares a los de Pinctada margaritifera de bancos de mar abierto y diferentes a aquellos de ostras perleras en repoblamiento en bahía de La Paz. La mortalidad mostró valores parecidos a los estimados para Pinctada radiata del Mar Rojo.Growth and mortality of the mother-of-pearl Pinctada mazatlanica in natural populations of the east coast of Baja California Sur, Mexico. The Mexican Pacific mother-of-pearl Pinctada mazatlanica was placed in forbidden fisheries status for the Mexican Federal Government and considered in extinction danger since 1939. This decree was modified in 1994 to allow the capture of spat for research or marine culture. We estimated the growth and mortality of mother-of-pearl from the eastern littoral of South Baja California wild stock in the periods 1992-93 and 1997-99. We used 38 sample stations at 2 bays and 6 insular complexes. The maximum length was 187.22 mm (179.83-195.81 mm, P > 0.95. Seasonal von Bertalanffy growth (ELEFAN I routine

  7. Epiphytic diatoms associated with red mangrove (Rhizophora mangle prop roots in Bahía Magdalena, Baja California Sur, Mexico

    Directory of Open Access Journals (Sweden)

    D.A Siqueiros Beltrones

    2006-06-01

    Full Text Available The first floristic inventory of benthic diatoms is provided for the Bahía Magdalena- Bahía Almejas lagoon system. Samplings were carried out during November of 1999. The oxydized samples were mounted permanently. Eighty six diatom taxa were identified, out of which 59 are new records for the Bahía Magdalena area, and 12 taxa are new for the Baja California peninsula. Taxa recorded previously as rare in other substrata are common or abundant on the epiphytic macroalgae of mangrove prop roots. Other species are mainly epipelic forms, while 24 are commonly found as tychoplankton in the area. Certain taxa appear to be characteristic of mangrove systems in general. Rev. Biol. Trop. 54(2: 287-297. Epub 2006 Jun 01.Se presenta el primer inventario florístico de diatomeas bénticas para el Sistema Lagunar Bahía Magdalena-Bahía Almejas. Se hicieron muestreos en noviembre de 1999. En las muestras oxidadas y montadas permanentemente, se identificaron 86 táxones, de los cuales 59 son nuevos registros para el área de Bahía Magdalena, y 12 son nuevos para la península de Baja California. Táxones previamente registrados como escasos en otros sustratos son comunes o abundantes sobre macroalgas epífitas de raíces primarias de mangle. Otras species son principalmente formas epipélicas, mientras que 24 son constituyentes comunes del ticoplancton del área. Ciertos táxones parecen ser característicos de sistemas de manglar en general.

  8. Dinámica del plancton en la región sur de la Corriente de California

    Directory of Open Access Journals (Sweden)

    Sergio Hernández Trujillo

    2001-03-01

    Full Text Available Se efectuó el análisis de la abundancia de la biomasa zooplanctónica, del micro y nanofitoplancton y de Calanus pacificus Brodsky 1948 en combinación con datos de temperatura superficial del mar en la costa occidental de la península de Baja California, entre febrero de 1983 y septiembre de 1991. La biomasa del zooplancton presentó una tendencia estacional de variación de la abundancia. Respecto al fitoplancton, la abundancia mensual de la fracción nanofitoplancton (We analyzed zooplankton biomass, micro- and nannophytoplankton abundance, Calanus pacificus Brodsky 1948 abundance, and sea surface temperature along the west coast of Baja California between February 1983 and September 1991. The zooplankton biovolume abundance decreased from spring to autumn. The average abundance of nannophytoplankton (< 20µm was generally higher than microphytoplankton (20 µm. Both increased 3.5 times in abundance after 1986. Seasonally, both fractions (NP and MP were least abundant in winter and most abundant in summer and autumn. Calanus pacificus abundance was variable, but especially high in May of some years. Abundance was lowest in winter and highest in spring, dropping in summer and autumn. Sea surface temperatures averaged 21.5 ºC, with highest in autumn (24.2ºC and the lowest in spring (17.9ºC. C. pacificus abundance and sea surface temperature were inversely related by cruise, season, and latitude. The phytoplankton abundance and zooplankton biomass and C. pacificus abundance showed low and high abundance patterns coincident with warming and cooling events (El Niño-La Niña.

  9. Onshore and offshore geologic map of the Coal Oil Point area, southern California

    Science.gov (United States)

    Dartnell, Pete; Conrad, James E.; Stanley, Richard G.; Guy R. Cochrane, Guy R.

    2011-01-01

    Geologic maps that span the shoreline and include both onshore and offshore areas are potentially valuable tools that can lead to a more in depth understanding of coastal environments. Such maps can contribute to the understanding of shoreline change, geologic hazards, both offshore and along-shore sediment and pollutant transport. They are also useful in assessing geologic and biologic resources. Several intermediate-scale (1:100,000) geologic maps that include both onshore and offshore areas (herein called onshore-offshore geologic maps) have been produced of areas along the California coast (see Saucedo and others, 2003; Kennedy and others, 2007; Kennedy and Tan, 2008), but few large-scale (1:24,000) maps have been produced that can address local coastal issues. A cooperative project between Federal and State agencies and universities has produced an onshore-offshore geologic map at 1:24,000 scale of the Coal Oil Point area and part of the Santa Barbara Channel, southern California (fig. 1). As part of the project, the U.S. Geological Survey (USGS) and the California Geological Survey (CGS) hosted a workshop (May 2nd and 3rd, 2007) for producers and users of coastal map products (see list of participants) to develop a consensus on the content and format of onshore-offshore geologic maps (and accompanying GIS files) so that they have relevance for coastal-zone management. The USGS and CGS are working to develop coastal maps that combine geospatial information from offshore and onshore and serve as an important tool for addressing a broad range of coastal-zone management issues. The workshop was divided into sessions for presentations and discussion of bathymetry and topography, geology, and habitat products and needs of end users. During the workshop, participants reviewed existing maps and discussed their merits and shortcomings. This report addresses a number of items discussed in the workshop and details the onshore and offshore geologic map of the Coal Oil

  10. Anthropogenic Methane Emissions in California's San Joaquin Valley: Characterizing Large Point Source Emitters

    Science.gov (United States)

    Hopkins, F. M.; Duren, R. M.; Miller, C. E.; Aubrey, A. D.; Falk, M.; Holland, L.; Hook, S. J.; Hulley, G. C.; Johnson, W. R.; Kuai, L.; Kuwayama, T.; Lin, J. C.; Thorpe, A. K.; Worden, J. R.; Lauvaux, T.; Jeong, S.; Fischer, M. L.

    2015-12-01

    Methane is an important atmospheric pollutant that contributes to global warming and tropospheric ozone production. Methane mitigation could reduce near term climate change and improve air quality, but is hindered by a lack of knowledge of anthropogenic methane sources. Recent work has shown that methane emissions are not evenly distributed in space, or across emission sources, suggesting that a large fraction of anthropogenic methane comes from a few "super-emitters." We studied the distribution of super-emitters in California's southern San Joaquin Valley, where elevated levels of atmospheric CH4 have also been observed from space. Here, we define super-emitters as methane plumes that could be reliably detected (i.e., plume observed more than once in the same location) under varying wind conditions by airborne thermal infrared remote sensing. The detection limit for this technique was determined to be 4.5 kg CH4 h-1 by a controlled release experiment, corresponding to column methane enhancement at the point of emissions greater than 20% above local background levels. We surveyed a major oil production field, and an area with a high concentration of large dairies using a variety of airborne and ground-based measurements. Repeated airborne surveys (n=4) with the Hyperspectral Thermal Emission Spectrometer revealed 28 persistent methane plumes emanating from oil field infrastructure, including tanks, wells, and processing facilities. The likelihood that a given source type was a super-emitter varied from roughly 1/3 for processing facilities to 1/3000 for oil wells. 11 persistent plumes were detected in the dairy area, and all were associated with wet manure management. The majority (11/14) of manure lagoons in the study area were super-emitters. Comparing to a California methane emissions inventory for the surveyed areas, we estimate that super-emitters comprise a minimum of 9% of inventoried dairy emissions, and 13% of inventoried oil emissions in this region.

  11. AUV Mapping and ROV Exploration of Los Frailes Submarine Canyon, Cabo Pulmo National Marine Park, Baja California Sur, Mexico

    Science.gov (United States)

    Troni, G.; Caress, D. W.; Graves, D.; Thomas, H. J.; Thompson, D.; Barry, J. P.; Aburto-Oropeza, O.; Johnson, A. F.; Lundsten, L.

    2015-12-01

    Los Frailes submarine canyon is located at the south boundary of the Cabo Pulmo National Marine Park on the southeast tip of the Baja California Peninsula. During the Monterey Bay Aquarium Research Institute (MBARI) 2015 Gulf of California expedition we used an autonomous underwater vehicle (AUV) to map this canyon from 50 m to 450 m depths, and then explored the canyon with a small remotely operated vehicle (ROV). This three day R/V Rachel Carson cruise was a collaboration with the Center for Marine Biodiversity and Conservation at Scripps Institution of Oceanography and the Centro para la Biodiversidad Marina y la Conservación in La Paz. The MBARI AUV D. Allan B. collected high resolution bathymetry, sidescan, and subbottom profiles of Los Frailes submarine canyon and part of the north Cabo Pulmo deep reef. In order to safely generate a 1-m lateral resolution multibeam bathymetry map in the nearshore high relief terrain, the mapping operations consisted of an initial short survey following the 100-m isobath followed by a series of short, incremental AUV missions located on the deep edge of the new AUV bathymetry. The MBARI Mini-ROV was used to explore the submarine canyon within the detailed map created by the MBARI AUV. The Mini-ROV is a 1.2-m-long, 350 kg, 1,500-m-depth-rated ROV designed and constructed by MBARI. It is controlled by six 600-watt thrusters and is equipped with a high-definition video camera and navigation sensors. This small ROV carries less accurate, lower cost navigation sensors than larger vehicles. We implemented new algorithms to localize combining Doppler velocity log sensor data and low-cost MEMS-based inertial sensor data with sporadic ultra-short baseline position measurements to provide a high accuracy position estimation. The navigation performance allowed us to colocate the ROV video imagery with the 1-m resolution bathymetric map of the submarine canyon. Upper Los Frailes Canyon is rugged and, aside from small sand pockets along

  12. Seismicity, focal mechanisms, and stress distribution in the Tres Virgenes volcanic and geothermal region, Baja California Sur, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Wong, Victor; Munguia, Luis [Centro de Investigacion Cientifica y de Educacion Superior de Ensenada (Mexico)

    2006-01-15

    In October 1993 we carried out a seismic monitoring in the Tres Virgenes volcanic region in order to record the background seismicity associated with the volcanic structures, the geothermal field and the tectonic features of the area. Hypocenters for 257 microearthquakes were located in the volcanic edifices and along the northwest right-lateral, strike-slip La Virgen fault. Focal depths range from close to the Earth surface to about 8 km. Shallow depths occur mainly in the volcanic edifices. Deeper seismic events occurred outside the volcanic area. The duration magnitudes of the located microearthquakes range between 1 and 3. The Vp/Vs ratio and the low-Q values estimated suggest heterogeneous material properties in the volcanic structures mainly toward the El Azufre fault and the El Aguajito Caldera, where hydrothermal activity has been reported. The P- and T-axes of focal mechanisms for 90 microearthquakes suggest that the region is under N-S compression and E-W extension, in agreement with the regional tectonic stress field of the NW-SE right-lateral strike-slip transform fault system of the Gulf of California. [Spanish] En octubre de 1993 se llevo a cabo un monitoreo sismico en la region volcanica Las Tres Virgenes con el proposito de registrar la actividad sismica asociada a las estructuras volcanicas, al campo geotermico y a la tectonica local. Se localizaron 257 microsismos con hipocentros en los edificios volcanicos y a lo largo de la falla de rumbo, lateral derecha conocida como falla La Virgen. La profundidad focal de los sismos varia desde los muy cercanos a la superficie de la Tierra hasta los 8 km. Las profundidades someras ocurren principalmente en los edificios volcanicos. Los sismos mas profundos ocurren fuera del area volcanica. La magnitud de duracion de los microsismos localizados varia entre 1 y 3. La razon Vp/Vs y los valores bajos de Q que se estimaron en la zona sugieren un material con propiedades heterogeneas bajo las estructuras

  13. Estructura de tallas y edad del marlin rayado Tetrapturus audax (Pisces:Xiphidae,en Cabo San Lucas,Baja California Sur,México

    Directory of Open Access Journals (Sweden)

    Felipe Neri Melo Barrera

    2004-12-01

    Full Text Available De 1988 a 1993 se muestrearon 1030 ejemplares de marlin rayado (Tetrapturus audax capturados por la flota deportiva de Cabo San Lucas.Se recolectaron 389 espinas dorsales para la estimación de la edad.La relación Longitud mandibular-Radio total de la espina es similar para hembras y machos.Se encontró que la cuarta espina dorsal refleja adecuadamente el crecimiento.La periodicidad de formación de las marcas de crecimiento es anual y parece que se relaciona con la temperatura superficial promedio del mar.Se contaron las bandas opaco-hialinas en cada corte de las espinas,y se encontraron diez grupos de edad (del dos al once,siendo el grupo siete el más abundante, seguido por los grupos seis y ocho.Las tallas observadas para el marlin rayado fueron de 160-280 cm de longitud mandibular,el 90%de los organismos estuvieron entre 190 y 225 cm.Los ejemplares pequeños se incorporan a la pesquería de junio hasta diciembre.Size and age structure of the striped marlin Tetrapturus audax (Pisces:Xiphidae,at Cabo San Lucas,Baja California Sur,México .The striped marlin (Tetrapturus audaxis found in temperate and tropical waters of the Pacific and Indian Ocean.It is particularly abundant in the southern tip of the Baja California peninsula.Specimens brought to Cabo San Lucas port (22 °53 ’ N y 109 °54 ’ Wby the sport fishery fleet that operates withing a radius of 54 km from 1988 to 1993 were sexes,measured and weighed.A total 1030 individuals were sampled.Dorsal fin spines (389were collected for age estimation.The spines were sectioned and hyaline-opaque bands counted.The relation of length to spine radius was similar for males and females.The fourth dorsal spine reflected the growth of the fish.The rhythm of growth mark formation is yearly and related to the sea surface temperature.Ten age groups were found and the seventh group was the most abundant,followed by groups "6 "and "8 ".The age structure of the striped marlin was stable in the study

  14. La fotografía de Julius Shulman y la construcción de la imagen de la arquitectura del sur de California

    Directory of Open Access Journals (Sweden)

    Daniel Díez Martínez

    2014-10-01

    Full Text Available A Julius Shulman le correspondió, casi en exclusiva, la labor de cronista gráfico de la arquitectura moderna en el sur de California. Consciente de la dificultad de hacer ver al público la belleza de estas construcciones, Shulman desarrolló un lenguaje propio con un marcado sentido escenográfico, un encuentro entre la fotografía arquitectónica clásica y la publicidad contemporánea inspirada en la cultura pop en la que la colocación de los muebles en intervalos estratégicos, la iluminación, la elección y actitud de los modelos o la vegetación estaban cuidadosamente estudiados para guiar la vista del espectador hacia la arquitectura y el estilo de vida que de esta se desprendía. El artículo propone una visión transversal de la fotografía de Shulman y establece lazos entre su obra y la tensión política que se respiraba en los Estados Unidos de la Guerra Fría. Gracias a las “escenas” capturadas en sus fotografías, la arquitec­tura moderna californiana quedaría por siempre asociada al contexto creado por el fotógrafo, dando lugar a imágenes que el tiempo ha elevado a la categoría de iconos culturales del siglo XX. Como la arquitectura que retrataba, la fotografía se convirtió en una exaltación de la modernidad entendida como una nueva era de bienestar, prosperidad y progreso.

  15. Incidence of organochlorine pesticides and the health condition of nestling ospreys (Pandion haliaetus) at Laguna San Ignacio, a pristine area of Baja California Sur, Mexico.

    Science.gov (United States)

    Rivera-Rodríguez, Laura B; Rodríguez-Estrella, Ricardo

    2011-01-01

    We identified and quantified organochlorine (OC) pesticide residues in the plasma of 28 osprey (Pandion haliaetus) nestlings from a dense population in Laguna San Ignacio, a pristine area of Baja California Sur, Mexico, during the 2001 breeding season. Sixteen OC pesticides were identified and quantified. α-, β-, δ- and γ-hexachlorocyclohexane, heptaclor, heptachlor epoxide, endosulfan I and II, endosulfan-sulfate, p,p'-DDE, p,p'-DDD, aldrin, dieldrin, endrin, endrin aldehyde, and endrin ketone were the OCs found in the plasma of nestlings, ranging from 0.002 to 6.856 pg/μl (parts per billion). No differences were found in the concentration of pesticides between genders (P > 0.05). In our work, the concentrations detected in the plasma were lower than those reported to be a threat for the species and that affect the survival and reproduction of birds. The presence of OC pesticides in the remote Laguna San Ignacio osprey population is an indication of the ubiquitous nature of these contaminants. OCs are apparently able to travel long distances from their source to the study area. A significant relationship between hemoglobin and mean corpuscular hemoglobin concentrations and OC concentrations were found suggesting that a potential effect on the health of chicks may exist in this osprey population caused by the OC, e.g. anemia. The total proteins were positively correlated with α-BHC, endosulfan I, and p,p'-DDD. It has been suggested that OC also affects competitive interactions and population status over the long term in vertebrate species, and our results could be used as reference information for comparison with other more exposed osprey populations.

  16. Tracing toxic elements sources using lead isotopes: An example from the San Antonio–El Triunfo mining district, Baja California Sur, México

    International Nuclear Information System (INIS)

    Gutiérrez-Caminero, Leopoldo; Weber, Bodo; Wurl, Jobst; Carrera-Muñoz, Mariela

    2015-01-01

    Highlights: • Provenance of toxic elements is investigated in a basin close to the mining district. • Stable lead isotope analyses assist to distinguish between sources of toxic elements. • Two major sources are identified: mine tailings and fault bounded mineralization. • There is evidence in the detritus of a different natural lead component. • An additional anthropogenic lead input is detectable from the soluble phases. - Abstract: Pollution of sediments and water bodies with toxic elements around the San Antonio–El Triunfo mining district, Baja California Sur, México is probably sourced from the tailings of abandoned mines that are hosted in mineralized Cretaceous granitoids. However, there is evidence to suggest local hot springs related to recent faults may be an additional source for contamination in the area. In this study, lead isotope signatures are applied to draw conclusions with regard to potential sources of toxic elements. Lead isotope ratios were analyzed from sulfides and scoria from the abandoned mines, fluvial sediments, and igneous rocks with secondary disseminated mineralization. To differentiate between superposed secondary and residual primary lead, leaching experiments were performed, and both leachate and residues were analyzed separately. Most of the residues from sediment samples have lead isotope ratios similar to those from the sulfides and scoria of the mining district, indicating that most of the lead in the detritus is related to the mineralized plutons. However, there is evidence of an additional detrital component. Lead isotope ratios from the leachates indicate a different source for the superimposed lead that is best explained by the contamination with the average Mexican industrial lead. Secondary disseminated mineralization that is related to younger, deep structures (hot springs) has different lead isotope ratios compared to massive vein sulfides and accounts for a significant amount in areas with high

  17. Using Drone Imagery and Photogrammetry to Map Basin Stratigraphy and Structures Exposed in Mine, Road, and Arroyo Outcrops, Santa Rosalia, Baja California Sur, Mexico

    Science.gov (United States)

    Banes, A.; Alvarez Ortega, K. G.; Henry, M.; Niemi, T.

    2017-12-01

    During the 2017 Baja Basins Research Experience for Undergraduates (REU), a DJI Phantom 3 Advanced Quadcopter drone equipped with a GPS-enabled, 12 Megapixel camera was manually flown to collect aerial photographs of several geologic outcrops on the Minera Boléo and Lucifer mines in central Baja California Sur. The strip mine faces, roadcuts, and arroyos exposed Neogene to Quaternary sediments of the Santa Rosalía basin including the basal Cu-Zn-Mn-Co-bearing Miocene Boléo Formation that is actively being mined. It is overlain by Plio-Quaternary marine and non-marine deposits. Photographs were collected with a 70% overlap and processed into geographically-referenced, orthophotomosaics using Agisoft Photoscan. The output models have an adequate resolution for viewing bedding and fault characteristics. Measurements can be made inside the 3D models, making drones a useful tool for studying the geometry of stratigraphic, structural, and geomorphologic features. The studied sites included: 1) roadcuts on Mesa Soledad that exposed oblique-slip faults and syntectonically deposited non-marine and marine conglomerates and sandy, fossil-rich Pliocene beach sediment; 2) outcrops of the Boléo Fm in the Texcoco mine area that showed the detailed stratigraphic relationship between ore seams (mantos) and faults; 3) outcrops where sandstone samples were collected for detrital zircon geochronology; 4) strip mine 3120 that exposed faults and folds in the Boléo Formation; and 5) faults in Miocene volcanic rocks in the Arroyo Infierno near the Lucifer mine. This study shows that photogrammetry and modeling of geologic structures exposed in mine and road outcrops can provide useful information for reconstructing basin architecture and clarifying structural evolution of the Santa Rosalia Basin.

  18. Cestodes of the blue shark, Prionace glauca (Linnaeus 1758), (Carcharhiniformes: Carcharhinidae), off the west coast of Baja California Sur, Mexico.

    Science.gov (United States)

    Méndez, Oscar; Galván-Magaña, Felipe

    2016-03-03

    The cestode species recovered from the spiral intestines of 27 blue sharks (Prionace glauca) (Linnaeus, 1758) are reported from the western coast of Baja California Sur (BCS). The sampling was undertaken on a monthly basis from January 2003 to January 2004. The helminthological examination indicated the presence of four species of cestodes: Platybothrium auriculatum Yamaguti, 1952; Prosobothrium japonicum Yamaguti, 1934; Anthobothrium caseyi (Yamaguti, 1934) Ruhnke & Caira, 2009; and Paraorygmatobothrium prionacis (Yamaguti, 1934) Ruhnke, 1994. Of all the 27 sharks examined, 88.8% were infected with at least one cestode species. The most frequent species was P. auriculatum infecting 85% of the spiral intestines examined. In contrast the species with the highest mean intensity was P. prionacis (80.4 200). The species richness of cestodes in P. glauca is very similar in other regions of the world despite its wide distribution; however, this richness is low compared with other species of sharks within the same family. The feeding and host-specific are important factors that influence the parameters of infection of cestodes in this shark. On the west coast of BCS, Prionace glauca feeds mainly on red crab Pleuroncodes planipes Stimpson, 1860; squids Gonatus californiensis Young, 1972, Ancistrocheirus lesueurii (D'Orbigny, 1842), Haliphron atlanticus Steenstrup, 1861, and low proportion of fish teleosts as Merluccius productus (Ayres, 1855), Sardinops sp. Hubbs, 1929 and Scomber japonicus Houttuyn, 1872. We speculate that these prey could be involved as the second intermediate hosts of these cestodes, as in other members of these genera, although the life cycles of none are known.

  19. Transformations of Mangrove Forests in Bahia Magdalena, Baja California Sur, Mexico: Two Decade Results Based on Landsat Imageries

    Science.gov (United States)

    Suresh Babu, S.; Abdul Rahaman, S.; Muthushankar, G.; Jonathan, M. P.

    2014-12-01

    Mangrove forests which thrive along the tropical and subtropical regions are the most productive ecosystems in the world with a wide range of ecological and economical services to mankind. With the rapid urbanization across the globe, these forests tend to be destroying at an alarming rate. The area of concern for this study, Bahia Magdalena is very important for the economy of the state as nearly 50% of the artisan fisheries are established in the mangrove zone. Henceforth this study is an attempt for a regional assessment and to accurately quantify the mangroves using LANDSAT imageries for over two decades in Bahia Magdalena, Baja California. Satellite imageries from the year 1986 through 2014 were analysed to assess the prolonged changes taking place in and around the mangrove reserve. Using the estimates of land use/cover for all the years, the spatio - temporal data was validated using ArcGIS software. The results revealed that the spatial extent of mangroves are decreasing until 2005 due to the developmental plans such as tourism, shrimp farming and establishment of industries in this part of the country. During the past 10 years (~ after 2005) there is no much change in the area extent of mangrove reserves due to afforestation and conservation efforts. Thus the unbiased dataset generated may be widely used for an improved understanding of the role of mangrove forests in the socio economic aspects, protection from natural disasters, identify possible areas for conservation, restoration and rehabilitation; and improve estimates of the amount of carbon stored in mangrove vegetation and the associated marine environment. Keywords: Mangroves, LANDSAT, Bahia Magdalena, México.

  20. Faulting at Mormon Point, Death Valley, California: A low-angle normal fault cut by high-angle faults

    Science.gov (United States)

    Keener, Charles; Serpa, Laura; Pavlis, Terry L.

    1993-04-01

    New geophysical and fault kinematic studies indicate that late Cenozoic basin development in the Mormon Point area of Death Valley, California, was accommodated by fault rotations. Three of six fault segments recognized at Mormon Point are now inactive and have been rotated to low dips during extension. The remaining three segments are now active and moderately to steeply dipping. From the geophysical data, one active segment appears to offset the low-angle faults in the subsurface of Death Valley.

  1. Population dynamics of tule elk at point Reyes National Seashore, California

    Science.gov (United States)

    Howell, J.A.; Brooks, G.C.; Semenoff-Irving, M.; Greene, C.

    2002-01-01

    The presence of locally abundant wildlife raises questions about natural regulation and ecological consequences of overpopulation. We sought to establish precise information about population size, structure, and productivity to examine the role of natural regulation in a closed tule elk (Cervus elaphus nannodes) population at Point Reyes National Seashore, California, USA. We estimated an instantaneous exponential growth rate of 0.19 with an adjusted R2 = 0.98 during 1998, 20 years after the elk were introduced. We estimated annual survival for adult cows of nearly 0.95. Calf survival from birth through the rut ending during October-November was 0.85. Male calves exhibited higher mortality than female calves. Cow mortality was associated with the calving season. We measured a 42% increase in cow:calf density from 0.733 ha-1 to 1.043 ha-1 during 1996-1998. We observed a density-correlated reduction in the rate of increase and in the cow:calf ratios prior to high precipitation El Nin??o Southern Oscillation years, 1993, 1996, and 1997, precipitation >1.23 m year-1. Given the high population growth rate and model evaluation of management scenarios, park managers will need to use a suite of approaches, such as contraception and removal, to maintain the elk population at levels at or near the closed-range carrying capacity for years between El Nin??o events.

  2. Manejo de un sitio de anidación para la conservación de Sternula antillarum (Charadriiformes: Laridae en Baja California Sur, México Nesting site management for Sternula antillarum (Charadriiformes: Laridae conservation in Baja California Sur, Mexico

    Directory of Open Access Journals (Sweden)

    Edgar Amador

    2008-06-01

    Full Text Available El gallito marino menor (Sternula antillarum es una especie sujeta a protección especial, que anida en colonias pequeñas en hábitats costeros. Las mareas altas son un problema para la anidación de S. antillarum en Baja California Sur, pues causan la inundación de algunas colonias. Para reducir el impacto potencial del flujo de marea alta sobre los nidos, se elevó 20 cm el nivel del suelo por medio de una plataforma elevada construida con llantas de desecho rellenas y cubiertas de arena. La ocupación de este sitio por S. antillarum se monitoreó durante las temporadas reproductivas de 1990, y de 2002 a 2005. Las mareas altas no afectaron los nidos establecidos sobre la plataforma y la densidad de nidos sobre ella fue mayor que la que hubo en el terreno natural de la planicie costera adyacente. Este método de manejo del hábitat de anidación de S. antillarum es una buena alternativa en los sitios con riesgo por flujo de marea.The Least Tern (Sternula antillarum is a threatened seabird species that breeds in small colonies on coastal habitats. High tides constitute a problem for their reproduction in Baja California Sur, since they cause flooding of some colonies. To reduce the potential impact of high tides on the nests, the level of the ground was elevated by 20 cm, through an elevated platform that was built by using discarded tires filled and covered with sand. The occupation of this site by Least Terns was monitored during the breeding seasons of 1990 and from 2002 to 2005. High tides did not affect the nests established on the platform and density of nests on this platform was higher than on the natural adjacent mudflat area. This nesting habitat management method for the Least Tern is an appropriate alternative for those sites affected by high tides.

  3. La inmigración de jubilados estadounidenses en México y sus prácticas transnacionales: Estudio de caso en Mazatlán, Sinaloa y Cabo San Lucas, Baja California Sur

    OpenAIRE

    Lizárraga Morales, Omár

    2008-01-01

    En este artículo se analiza la migración de jubilados estadounidenses hacia México, particularmente en dos localidades en el noroeste del país: Mazatlán, Sinaloa y Cabo San Lucas en Baja California Sur. Este es un flujo migratorio que se dirige en dirección contraria a la que tradicionalmente se estudia en la migración internacional, y tiene un rápido crecimiento en algunos destinos mexicanos, pues está compuesto por los integrantes de la generación del baby boom. Se describen las estructuras...

  4. CTD, salinity, temperature, oxygen, and depth data for Cruise DP01 from the R/V Point Sur in the Viosca Knoll, Gulf of Mexico, 2015-05-01 to 2015-05-08 (NCEI Accession 0142203)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Deep water sampling of in situ seawater and associated fauna (cruise DP01, May 1-8, 2015) aboard the R/V Point Sur for an area encompassing roughly 28°N to 29°N...

  5. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Southern California: NESTS (Nest Points)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for nesting and roosting gulls, terns, seabirds, shorebirds, and T/E species in Southern California. Vector...

  6. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Central California: SOCECON (Socioeconomic Resource Points)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains socioeconomic resource data for the following types of locations in Central California: access, airport, aquaculture, beach, boat ramp, USCG...

  7. Vertebrados terrestres registrados mediante foto-trampeo en arroyos estacionales y cañadas con agua superficial en un hábitat semiárido de Baja California Sur, México Terrestrial vertebrates recorded by camera traps in areas with seasonal streams and creeks of superficial waters in a semiarid habitat of Baja California Sur, Mexico

    Directory of Open Access Journals (Sweden)

    Erika Mesa-Zavala

    2012-03-01

    Full Text Available Los cuerpos de agua superficial (CAS permanentes o efímeros (pozas, tinajas, escurrimientos, etc. que se encuentran en depresiones del terreno, como arroyos y cañadas, son soporte fundamental para el ecosistema en zonas áridas. Mediante el uso de cámaras-trampa, en este estudio se identifican especies de vertebrados terrestres silvestres presentes en 4 sitios con agua superficial, en el extremo sur de la sierra El Mechudo, Baja California Sur, y se analiza el uso de los CAS por las especies en los periodos de actividad. En cada sitio se caracterizó el hábitat (topografía, vegetación y agua. Los 4 sitios mostraron diferencias en sus características ambientales. Se identificaron 41 especies de vertebrados terrestres (3 reptiles, 31 aves y 7 mamíferos. Se encontraron también varias especies de murciélagos que no fueron identificadas. La riqueza de especies y frecuencia de visita fue diferente en cada sitio. Con excepción de 3 especies de mamíferos, el horario de actividad fue similar en los 4 sitios. La presente investigación aporta información sobre la importancia de los CAS en zonas semiáridas, describiendo el hábitat, las especies y su comportamiento, elementos básicos para la conservación y manejo de los recursos naturales.Permanent or ephemeral water ponds (puddles, catchments, drains, and so on located on ground depressions, such as streams and creeks, are a fundamental support for ecosystems in dry areas. This study identified the species of native terrestrial vertebrates in 4 sites in the southernmost part of the Sierra El Mechudo, B.C.S., including how such species use these bodies of water based on the periods of species activity. Habitats were characterized in 4 sites (topography, vegetation, and water sources; camera-traps were placed around water ponds from March to October 2007. The 4 sites differed in their environmental characteristics. Overall, there were 41 species of terrestrial vertebrates (3 reptiles, 31

  8. Environmental Assessment. Proposed Air Force Space Division Housing Project, White Point, Los Angeles, California

    Science.gov (United States)

    1984-07-01

    render any potential impactsnegligible. 5 E. Diking, Dredging and Shoreline Structures The project would have no effect on these areas of concern; see3...San Juan Capistrano Indians of Southern California [1812-1826]") and Hugo Reid’s letters I printed in the Los Angeles Star in the 1800’s ( Heizer 1968...California5 n.d. A Brief History of Fort MacArthur. Heizer , R. F. (ed.) 1968 The Indians of Los Angeles County: Hugo Reid’s Letters of 1852

  9. Financial Aid Tipping Points: An Analysis of Aid and Academic Achievement at a California Community College

    Science.gov (United States)

    Coria, Elizabeth; Hoffman, John L.

    2016-01-01

    The purpose of this study was to explore relationships between financial aid awards and measures of student academic achievement. Financial aid and academic records for 11,956 students attending an urban California community college were examined and analyzed using simultaneous linear regression and two-way factorial ANOVAs. Findings revealed a…

  10. Moored current meter and wind recorder measurement near Point Conception, California: The 1983 OPUS Observations, from 1983-04-01 to 1983-07-29 (NODC Accession 8600041)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The OPUS (Organization of Persistent Upwelling Structures) program deployed two current meter (VMCM) moorings near Point Conception, California, during April - July...

  11. Composición taxonómica y relaciones zoogeográficas de los peces demersales de la costa occidental de Baja California Sur, México

    Directory of Open Access Journals (Sweden)

    Jesús Rodríguez-Romero

    2008-12-01

    Full Text Available Se presenta la composición sistemática de peces demersales de la costa occidental de Baja California Sur, límite de distribución norte de la ictiofauna del Pacífico Oriental Tropical. Se realizaron cuatro cruceros oceanográficos durante otoño de 2004 a marzo de 2006. Este listado incluye 220 especies, 132 géneros y 73 familias. El 26.3% corresponde a especies de amplia distribución desde la Provincia de San Diego a la Provincia Panámica y el 21.7% son especies restringidas a la región del Pacífico Oriental Tropical. Seis especies representan nuevos registros para la zona o ampliación de su ámbito de distribución. Las familias mejor representadas en número de especies fueron Paralichthyidae y Scorpaenidae, con 16 especies cada una. El género mejor representado fue Sebastes con 9 especies. Se presentan los nombres comunes, intervalo de tallas y el estatus de cada especie dentro de la comunidadTaxonomic composition and zoogeographic relations of demersal in the western coast of Baja California Sur, Mexico. The composition of demersal fish along the western coast of the State of Baja California Sur, México, including the limit of the northern distribution of the ichthyofauna of the eastern tropical Pacific, is presented. The survey was carried out on four oceanographic cruises between autumn 2004 and March 2006. Of 220 species in 132 genera and 73 families, 26.3% are species of wide distribution from San Diego County, USA to Panama and 21.7% are species restricted to the eastern tropical Pacific. Six species are new findings for the area or range expansions. The families with the most species are Paralichthyidae and Scorpaenidae, each with 16 species. The most frequent genus was Sebastes, with nine species. We present a table with common Spanish names, size range and status of each species inside the community. Rev. Biol. Trop. 56 (4: 1765-1783. Epub 2008 December 12.

  12. Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from NOAA Ship FAIRWEATHER and POINT SUR in the Columbia River estuary - Washington/Oregon, Gulf of the Farallones National Marine Sanctuary and others from 2013-08-03 to 2013-08-29 (NCEI Accession 0157622)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NCEI Accession 0157622 includes biological, chemical, discrete sample, physical and profile data collected from NOAA Ship FAIRWEATHER and POINT SUR in the Columbia...

  13. La gestion de la demande d'eau au Danemark: Point de vue nordique sur le project LRC (Rhone-Barcelone)

    DEFF Research Database (Denmark)

    Andersen, Mikael Skou

    1998-01-01

    Are hydrodinosaurs sustainable ? Il résume les acquis d’une étude collective de niveau européen sur le transfert envisagé de l’eau du Rhône à Barcelone. Mais il commence par la présentation de la controverse dans laquelle l’auteur a été engagé à ce sujet. Puis l’article présente les questions pos...

  14. Survey of fishes and environmental conditions in Abbotts Lagoon, Point Reyes National Seashore, California

    Science.gov (United States)

    Saiki, M.K.; Martin, B.A.

    2001-01-01

    This study was conducted to gain a better understanding of fishery resources in Abbotts Lagoon, Point Reyes National Seashore. During February/March, May, August, and November 1999, fish were sampled with floating variable-mesh gill nets and small minnow traps from as many as 14 sites in the lagoon. Water temperature, dissolved oxygen, pH, total ammonia(NH3 + NH4+), salinity, turbidity, water depth, and bottom substrate composition were also measured at each site. A total of 2,656 fish represented by eight species was captured during the study. Gill nets captured Sacramento perch, Archoplites interruptus; largemouth bass, Micropterus salmoides; Pacific herring, Clupea pallasi; prickly sculpin, Cottus asper, silver surfperch, Hyperprosopon ellipticum; longfin smelt, Spirinchus thaleichthys; and striped bass, Morone saxatilis; whereas minnow traps captured Sacramento perch; prickly sculpin; and threespine stickleback, Gasterosteus aculeatus. Cluster analysis (Ward's minimum variance method of fish catch statistics identified two major species assemblages-the first dominated by Sacramento perch and, to a lesser extent, by largemouth bass, and the second dominated by Pacific herring and threespine stickleback. Simple discriminant analysis of environmental variables indicated that salinity contributed the most towards separating the two assemblages.

  15. Relación entre las capturas de Megapitaria squalida (Bivalvia: Veneridae y la temperatura superficial del mar en la Bahía de la Paz, Baja California Sur, México

    Directory of Open Access Journals (Sweden)

    Mariana Vázquez Hurtado

    2011-03-01

    Full Text Available La almeja chocolate Megapitaria squalida es un recurso pesquero con creciente importancia en el noroeste de México al registrarse un incremento en los volúmenes de captura. Sin embargo, esta pesquería ha observado variaciones importantes en las capturas que podrían estar relacionadas con factores ambientales. Se obtuvieron datos mensuales de producción de M. squalida durante 2002- 2005 y se estimaron series de tiempo de temperatura superficial del mar en la Bahía de La Paz B.C.S. a partir de imágenes mensuales derivadas del sensor MODIS-Aqua. Los resultados indican una relación positiva significativa entre la temperatura superficial del mar y los volúmenes de captura, razón por la cual nuestro trabajo tiene como objetivo estudiar las relaciones entre capturas de Megapitaria squalida (Bivalvia: Veneridae y la temperatura superficial del mar en La Bahía de la Paz, Baja California Sur, México.

  16. Alcances y limitaciones de las políticas sobre el derecho a la no discriminación a escala subnacional en México: el caso de Baja California Sur

    Directory of Open Access Journals (Sweden)

    Gerardo ORDÓÑEZ-BARBA

    2012-01-01

    Full Text Available En este artículo se analiza la situación que guarda la instrumentación de las políticas del derecho a la no discriminación en una de las entidades que, al menos formalmente, se encuentra a la vanguardia en esta materia. Se trata de mostrar los alcances y limitaciones de la legislación de Baja California Sur que alude a los temas de la igualdad, ciudadanía, discriminación y protección a grupos vulnerables; así como de los programas, dependencias y recursos estatales que posibilitan la integración de personas y grupos que padecen discriminación, exclusión o violencia. En elestudio se constata que, a pesar de los avances legislativos, las iniciativas y los recursos involucrados en estas áreas de responsabilidad están aún lejos de ser un instrumento eficaz para el pleno ejercicio del derecho a la no discriminación de los sudcalifornianos.

  17. L’HISTOIRE ORALE DANS LE CADRE DES ÉCRITS SUR SOI ET SUR AUTRUI: Points de réflexion au sujet de la construction d'une méthodologie production historiographique

    Directory of Open Access Journals (Sweden)

    Francisco de Assis de Sousa NASCIMENTO

    2016-05-01

    Full Text Available RÉSUMÉ Cet article vise à analyser le processus réflexif de construction de la connaissance historique en se basant sur la méthodologie de l’histoire orale et la modalité des histoires de vie. On pourra ainsi tenter de comprendre ce processus chargé de sensibilités, d’émotions, d’expériences personnelles et collectives, heureuses ou traumatiques, qu’elles soient intimes ou liées à un vécu collectif. Notre fondement théorique s’appuiera sur les postulats de Michel de Certeau, Michel Foucault, Jacques Le Goff, Ulpiano Menezes, Mary Cristine Josso et Tomás Tadeu da Silva. La réflexion a été construite à partir d’une analyse bibliographique dialoguant avec des auteurs se consacrant à l’histoire orale, tels que Verena Alberti, Ana Maria Mauad, entre autres. MOTS-CLÉS Histoire; Mémoire; Oralité; Histoires de Vie.     RESUMO O presente artigo visa perscrutar o processo reflexivo da construção do conhecimento histórico, através da metodologia da história oral, utilizando a modalidade das histórias de vida, por meio da qual é possível entender o processo, eivada de sensibilidades, emoções, experiências pessoais e coletivas, felizes ou traumáticas, sejam elas intimistas ou entrecruzamento com outras vivências coletivas. A fundamentação teórica baseia-se nos postulados de Michel de Certeau, Michel Foucault, Jacques Le Goff, Ulpiano Menezes, Mary Cristine Josso e Tomás Tadeu da Silva. A reflexão foi constituída a partir da análise bibliográfica que dialoga com autores devotados à História Oral como Verena Alberti, Ana Maria Mauad dentre outros. PALAVRAS-CHAVE: História; Memória; Oralidade; Histórias de Vida.     ABSTRACT This article aims to scrutinize the reflective process of the construction of historical knowledge through oral history methodology, using the method of life stories through which to understand the process in the course of a life, fraught with sensitivities, emotions

  18. Crecimiento y mortalidad de la concha nácar Pteria sterna en bancos silvestres de Baja California Sur, México

    Directory of Open Access Journals (Sweden)

    Humberto Wright-López

    2009-09-01

    Full Text Available La concha nácar Pteria sterna sustenta los perlicultivos en México, y es la base de producción de perlas en el continente Americano. Está bajo protección especial desde 1994, y solo puede capturarse semilla natural para cultivo e investigación. Determinamos su crecimiento y mortalidad en bancos silvestres, registrando la altura de ostras de Santa Rosalía, Mulegé y Bahía de Loreto (1997-99. La longitud máxima estimada fue 130.35 mm (124.22-136.48 mm, P>0.95. Las frecuencias de longitudes se ordenaron en un "año virtual" (Guanco 1991. Los parámetros de crecimiento de von Bertalanffy estimados con el programa ELEFAN I fueron: L∞= 156.02 mm, k=0.48año-1, t0=-0.216 años, C= 0.43 y WP = 0.73; el índice de desempeño de crecimiento fue Φ’ = 4.068. La mortalidad total fue de Z = 3.34 año -1por longitud convertida a curva de captura. La regresión del peso total y la altura tuvo la expresión W = 0.000756 * L(i2.7075 (r²=0.90, n=233. Mostramos la diferencia entre los parámetros de crecimiento en condiciones de repoblamiento experimental y aquellos de individuos silvestres de P. sterna. El valor de mortalidad total es comparable a aquellos de Pinctada fucata en el mar Rojo o P. radiata en el mar Mediterráneo.Growht and mortality of the mollusk Pteria sterna in wild banks of Southern Baja California, Mexico. The Gulf of California nacre shell Pteria sterna is an important marine resource in Mexico, and the main species for "half" and round pearl production in the American continent. Wild spat can only be extracted legally for research or culture activities. This study calculates growth and mortality parameters for wild stocks in the eastern coast of Southern Baja California. Height’s data (353 dorso-ventral measurements were taken from 1997 to 1999 at Santa Rosalía, Mulegé and Loreto Bay coast. The maximum length was estimated at 130.35 mm (124.22-136.48 mm, p>0.95. The length frequency data were set in a "virtual year

  19. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Northern California: SOCECON (Socioeconomic Resource Points and Lines)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains the following human-use resource data for Northern California: access areas, airports, aquaculture sites, beaches, boat ramps, Coast Guard...

  20. Caracterización espacial y biogeográfica de las asociaciones de macroalgas de Bahía del Rincón,Baja California Sur,México

    Directory of Open Access Journals (Sweden)

    R Riosmena-Rodríguez

    2005-06-01

    Full Text Available Se caracterizó la flora marina de la zona de Bahía del Rincón -La Rivera por medio de prospecciones intensivas en diferentes localidades a varias profundidades. Además, se realizó un análisis intenso de la literatura y por este mismo medio la determinación de las afinidades geográficas de las especies. En total se encontraron 72 especies, donde la mayor proporción (62% correspondió a las algas rojas. En el caso de las afinidades biogeográficas se observó que la mayor proporción varió en función de la división, donde para algas cafés las predominantes fueron de naturaleza tropical/ endémica y para las algas rojas fueron las templadas/ cosmopolitas. Espacialmente se encontró una alta similitud entre las zonas someras estudiadas más no así entre las someras y profundas donde existen diferencias significativas. En el caso de la zona intermareal se determinaron diferencias significativas con áreas submareales y entre sitios de la zona somera y profunda basados en las abundancias de los principales taxa. Con base en los resultados se sugiere que existen diferencias verticales en reclutamiento y desarrollo de las poblaciones en relación a su distribuciónSpatial and biogeographic characterization of macroalgal assemblages from Bahía del Rincón, Baja California Sur, Mexico.Macroalgal studies in Baja California Sur have dealt mainly with occurrence and seasonality, but some areas are poorly known even for these basic data. Bahía del Rincón-La Rivera is an important high-productivity fisheries area where coastal infrastructure development is under way. A spatial characterization of the marine flora from Bahía del Rincón-La Rivera was done by intensive sampling at different depths and localities with skin and SCUBA diving. At least 500m² were surveyed in each site. Additionally, quantitative sampling was done in ten random 25 cm² quadrates per site. In the intertidal section, density and cover estimates were used. We also

  1. Relación entre las capturas de Megapitaria squalida (Bivalvia: Veneridae y la temperatura superficial del mar en la Bahía de la Paz, Baja California Sur, México

    Directory of Open Access Journals (Sweden)

    Mariana Vázquez Hurtado

    2011-03-01

    Full Text Available La almeja chocolate Megapitaria squalida es un recurso pesquero con creciente importancia en el noroeste de México al registrarse un incremento en los volúmenes de captura. Sin embargo, esta pesquería ha observado variaciones importantes en las capturas que podrían estar relacionadas con factores ambientales. Se obtuvieron datos mensuales de producción de M. squalida durante 2002- 2005 y se estimaron series de tiempo de temperatura superficial del mar en la Bahía de La Paz B.C.S. a partir de imágenes mensuales derivadas del sensor MODIS-Aqua. Los resultados indican una relación positiva significativa entre la temperatura superficial del mar y los volúmenes de captura, razón por la cual nuestro trabajo tiene como objetivo estudiar las relaciones entre capturas de Megapitaria squalida (Bivalvia: Veneridae y la temperatura superficial del mar en La Bahía de la Paz, Baja California Sur, México.Megapitaria squalida (Bivalvia: Veneridae fishery landings and temperature relationship in Bahía de la Paz, México. The clam Megapitaria squalida is a fishing resource with increasing importance in Northwestern Mexico. Nevertheless, this fishery has shown important variations that could be related to environmental factors. To assess this, monthly landings of M. squalida were analyzed during 2002-2005 for Bahía de La Paz, B.C.S., and were related with monthly time series of sea surface temperature, derived from MODIS-Aqua Sensor. The results showed a positive and significant relationship between sea surface temperature and clam landings. The likely impact of anomalous conditions of sea temperature on this resource is discussed. Rev. Biol. Trop. 59 (1: 151-157. Epub 2011 March 01.

  2. Capacidad de carga turÍstica como base para el manejo sustentable de actividades ecoturísticas en Unidades de Manejo Ambiental (UMA de Baja California Sur (BCS

    Directory of Open Access Journals (Sweden)

    Reyna Ibañez Pérez

    2016-01-01

    Full Text Available Existen zonas ejidales con UMA ́s, que desean incursionar en el turismo alternativo; tal es el caso del Nuevo Centro Poblacional Ejidal (NCPE, Ley Federal de Aguas Número 3, que se extiende a tres municipios de Baja California Sur (BCS, posee una UMA y se destaca por buscar opciones para reactivar su economía. En este trabajo se presentan los resultados de un estudio de Capacidad de Carga Turística (CCT, realizada en dos senderos de ese ejido, mediante la aplicación de la metodología de Cifuentes, que busca establecer el número máximo de visitas que puede recibir un área con base en sus condiciones físicas, biológicas y de manejo; cuya estimación, requirió de la revisión de censos de flora y fauna, de información geológica, climatológica, geográfica, ambiental, social, económica, turística, así como trabajo de campo. Los resultados indican que, en el NCPE, Ley Federal de Aguas Número 3, existen dos senderos con potencialidad turística para los cuales, se ha estimado una Capacidad de Carga Efectiva (CCE de 18 visitantes/día para el sendero del arroyo El Camarón y de 10 visitantes/día sendero del arroyo El Saucito. Las cifras anteriores, son un referente para el establecimiento de medidas de control de las visitas en ambos senderos

  3. Crecimiento económico, desarrollo sustentable y turismo: Una aproximación del posicionamiento de Baja California Sur (BCS en el Barómetro de Sustentabilidad

    Directory of Open Access Journals (Sweden)

    Reyna Ibáñez Pérez

    2011-01-01

    Full Text Available Uno de los mayores anhelos de toda sociedad es alcanzar un nivel económico elevado; otro es el de tener la oportunidad de disfrutar eternamente de los servicios proporcionados por la madre naturaleza. Sin embargo, las tendencias indican que se experimenta un deterioro importante en el ambiente, a la par, de una elevada concentración de pobreza. Esto, aunado a la dependencia que algunas entidades y países han desarrollado en relación a actividades -como la turística- se ha convertido en una de las preocupaciones centrales de los gobiernos, el establecer mediciones para determinar si las pautas de crecimiento y desarrollo, van acorde con el cuidado del ambiente y el bienestar de las personas. Por ello, dentro de este artículo se analizan la evolución del crecimiento económico y posicionamiento de Baja California Sur (BCS -un estado con importante actividad turística- en el Barómetro de Sustentabilidad. En la introducción, se aprecia la evolución del concepto de crecimiento y desarrollo, para continuar con la caracterización de la zona de estudio. Posteriormente, se detalla la metodología empleada. Enseguida, se estudia la situación actual del sector turístico en BCS y la evolución del crecimiento y desarrollo económico. En el análisis de resultados, se describen los factores que ubican a BCS en un nivel Medio de sustentabilidad. Finalmente, se presentan algunas reflexiones en relación a los retos que en materia de turismo, crecimiento económico, desarrollo sustentable afronta BCS.

  4. Estructura de la comunidad y asociación de las aves acuáticas con la heterogeneidad espacial del complejo lagunar Bahía Magdalena-Almejas, Baja California Sur, México

    Directory of Open Access Journals (Sweden)

    Bulmara Zárate-Ovando

    2008-03-01

    Full Text Available Para probar la hipótesis que la heterogeneidad espacial determina la diversidad de aves acuáticas en un humedal costero, comparamos la densidad, diversidad y composición de especies de aves acuáticas entre habitats y otras unidades de paisaje del complejo Bahía Magdalena-Almejas, Baja California Sur, México. Se realizaron censos de aves acuáticas en 329 segmentos de habitat de la línea de costa interna del complejo lagunar, desde febrero 2002 hasta febrero 2003. La densidad de aves fue mayor en invierno y otoño en las tres lagunas del área de estudio; de las zonas, la densidad fue mayor en la costa insular; y de los habitats en playa arenosa y dunas pero en los pocos segmentos de sustrato antrópico la densidad fue alta. La diversidad fue significativamente mayor en otoño; en Canal Santo Domingo; en la costa peninsular; y de los habitats en manglar-dunas y manglar. La modificación del habitat natural costero y el disturbio por tránsito de embarcaciones no tuvieron influencia en la densidad o diversidad de aves acuáticas, pero la riqueza acumulada mayor ocurrió en las costas bien conservadas y sin disturbio. El análisis de la composición de especies mostró diferencias entre las asociaciones de Canal Santo Domingo y Bahía Magdalena. El ambiente pelágico y el manglar tuvieron diferencia mayor en la composición de especies con respecto a las asociaciones de los demás habitats, tales diferencias en elencos de especies por habitat sugieren que la comunidad de aves está estructurada de acuerdo a los recursos naturales disponibles de las lagunas, zonas y habitats, en relación con la complejidad estructural de las unidades de paisaje. Las condiciones ecológicas del complejo lagunar ocasionan que las aves acuáticas piscívoras sean el grupo dominante de esta comunidad.Community structure and association of waterbirds with spatial heterogeneity in the Bahía Magdalena-Almejas wetland complex, Baja California Sur, Mexico. To test

  5. Geochemistry of Mercury and other trace elements in fluvial tailings upstream of Daguerre Point Dam, Yuba River, California, August 2001

    Science.gov (United States)

    Hunerlach, Michael P.; Alpers, Charles N.; Marvin-DiPasquale, Mark; Taylor, Howard E.; DeWild, John F.

    2004-01-01

    This study was designed to characterize the particle-size distribution and the concentrations of total mercury (HgT), methylmercury (MeHg), and other constituents in sediments trapped behind Daguerre Point Dam, a 28-foot-high structure on the lower Yuba River in California. The results of the study will assist other agencies in evaluating potential environmental impacts from mobilization of sediments if Daguerre Point Dam is modified or removed to improve the passage of anadromous fish. Methylmercury is of particular concern owing to its toxicity and propensity to bioaccumulate. A limited amount of recent work on hydraulic and dredge tailings in other watersheds has indicated that mercury and MeHg concentrations may be elevated in the fine-grained fractions of placer mining debris, particularly clay and silt. Mercury associated with tailings from placer gold mines is a source of continued contamination in Sierra Nevada watersheds and downstream water bodies, including the Sacramento?San Joaquin Delta and the San Francisco Bay of northern California. Churn drilling was used to recover sediments and heavy minerals at 5-foot intervals from six locations upstream of Daguerre Point Dam. Maximum depth of penetration ranged from 17.5 to 35 feet below land surface, resulting in 31 discreet drilled intervals. Drilling in permeable, unconsolidated sediments below the streambed of the Yuba River released a significant volume of water along with the sediment, which complicated the sampling and characterization effort. Overflow of a silty fraction sampled at the drill site contained suspended sediment consisting predominantly of silt and clay, with HgT concentration ranging from 33 to 1,100 ng/g (nanogram per gram) dry weight. A sandy fraction, collected after sieving sediment through a 2-millimeter vibratory screen, contained from 14 to 82 percent sand and 1 to 29 percent silt plus clay, and had HgT concentrations ranging from 6.8 to 81 ng/g dry weight. A clay-silt fraction

  6. Points cardinaux pour la conception de formations universitaires pluridisciplinaires en épistémologie et histoire des sciences pour les enseignants du secondaire, ou comment s'appuyer sur des dilemmes

    Directory of Open Access Journals (Sweden)

    Bernard Alain

    2014-01-01

    Full Text Available Cet article s'intéresse à quelques uns des problèmes qui sous-tendent la conception des formations en épistémologie et histoire des sciences aujourd'hui offertes en France aux enseignants du second degré, en réponse à la demande croissante qui leur est faite. Ayant relevé plusieurs points communs incontournables à toute entreprise de formation universitaire s'adressant à ce type de public, notre objet principal est de proposer quelques points cardinaux, c'est-à-dire quelques principes d'orientation permettant de guider la conception de ce type de formation, pour autant qu'il entende concilier les exigences de pertinence, c'est-à-dire d'être adapté au public visé, et de rester ancré dans la recherche universitaire. Concernant le problème de la pertinence des formations, nous proposons préalablement deux points de vue complémentaires pour cerner ces contraintes: (1 le premier s'intéresse aux structures institutionnelles ainsi qu'aux sources disponibles qui conditionnent le travail des enseignants ; (2 le second se concentre sur l'activité des enseignants et résume les principaux dilemmes professionnels qu'ils doivent affronter alors qu'ils investissent au cœur de leur enseignement un champ interdisciplinaire comme l'est l'histoire et l'épistémologie des sciences. (3 Ce double point de vue nous permet alors de proposer un ensemble de points cardinaux pour la conception de formations universitaires permettant aux enseignants ou futurs enseignants de développer leur pouvoir d'agir dans ce domaine.

  7. Users' guide to system dynamics model describing Coho salmon survival in Olema Creek, Point Reyes National Seashore, Marin County, California

    Science.gov (United States)

    Woodward, Andrea; Torregrosa, Alicia; Madej, Mary Ann; Reichmuth, Michael; Fong, Darren

    2014-01-01

    The system dynamics model described in this report is the result of a collaboration between U.S. Geological Survey (USGS) scientists and National Park Service (NPS) San Francisco Bay Area Network (SFAN) staff, whose goal was to develop a methodology to integrate inventory and monitoring data to better understand ecosystem dynamics and trends using salmon in Olema Creek, Marin County, California, as an example case. The SFAN began monitoring multiple life stages of coho salmon (Oncorhynchus kisutch) in Olema Creek during 2003 (Carlisle and others, 2013), building on previous monitoring of spawning fish and redds. They initiated water-quality and habitat monitoring, and had access to flow and weather data from other sources. This system dynamics model of the freshwater portion of the coho salmon life cycle in Olema Creek integrated 8 years of existing monitoring data, literature values, and expert opinion to investigate potential factors limiting survival and production, identify data gaps, and improve monitoring and restoration prescriptions. A system dynamics model is particularly effective when (1) data are insufficient in time series length and/or measured parameters for a statistical or mechanistic model, and (2) the model must be easily accessible by users who are not modelers. These characteristics helped us meet the following overarching goals for this model: Summarize and synthesize NPS monitoring data with data and information from other sources to describe factors and processes affecting freshwater survival of coho salmon in Olema Creek. Provide a model that can be easily manipulated to experiment with alternative values of model parameters and novel scenarios of environmental drivers. Although the model describes the ecological dynamics of Olema Creek, these dynamics are structurally similar to numerous other coastal streams along the California coast that also contain anadromous fish populations. The model developed for Olema can be used, at least as a

  8. Composición química y precursores de ácidos vaccénico y ruménico en especies forrajeras en Baja California Sur, México

    Directory of Open Access Journals (Sweden)

    Eduardo Alberto Toyes-Vargas

    2013-01-01

    Full Text Available Los rumiantes pequeños que pastorean la vegetación nativa seleccionan su dieta a partir de una amplia variedad de especies vegetales, que difieren en su contenido y disponibilidad de nutrientes durante el año, y son fuente importante de nutrientes. El objetivo del estudio fue determinar y comparar la composición bioquímica de especies forrajeras asociadas al agostadero de Baja California Sur. Las especies evaluadas fueron huizache, mezquite, palo fierro, palo verde y vinorama, así como alfalfa henificada. Se cuantificó el contenido de materia seca, proteína cruda, lípidos totales, fibra cruda, cenizas, extracto libre de nitrógeno y energía bruta, así como la concentración de ácido linoléico, ácido -linolénico y ácidos grasos poliinsaturados ARA, EPA y DHA. Los resultados muestran que el palo verde y el mezquite presentaron un contenido mayor de proteína cruda. El huizache mostró la concentración mayor de lípidos totales, seguido de palo verde y mezquite. Huizache y alfalfa henificada presentaron las concentraciones mayores de ácido linoleico; mientras que palo verde alcanzó los niveles más altos de ácido alfa linolénico, seguido por palo fierro y alfalfa henificada. Palo verde, palo fierro y alfalfa henificada obtuvieron concentraciones mayores de ácidos grasos poliinsaturados. El uso de los forrajes de agostadero en la alimentación de los rumiantes es una alternativa que podrá modificar las proporciones de los ácidos grasos de la leche dado el contenido del ácido oleico, linoléico y linolénico, precursores del ácido vaccénico y ruménico y ácidos grasos poliinsaturados de la serie omega 3 como el EPA y el DHA.

  9. Seasonal changes in a fish assemblage associated with mangroves in a coastal lagoon of Baja California Sur, Mexico Cambios estacionales de la comunidad de peces asociada a zonas de manglar en una laguna costera de Baja California Sur, México

    Directory of Open Access Journals (Sweden)

    Jesús Rodríguez-Romero

    2011-07-01

    Full Text Available The fish assemblage in a coastal lagoon with mangroves known as "Rancho Bueno" was determined and associated with environmental parameters. We used an experimental otter trawl net to catch the fish, and 62 fish species were identified from 48 genera and 30 families. The most abundant species were: Etropus crossotus, Eucinostomus gracilis, Paralabrax maculatofasciatus, Sphoeroides annulatus, and Eucinostomus dowii. The water temperature changed seasonally, being warm from July through December and cold from January through June. We found more fish species during the warm season than during the cold season. The southern area of the coastal lagoon had the highest diversity and species richness. The small size of the fishes registered confirms the ecological role of coastal lagoons as nursery areas that offer protection and feeding to commercially important fish near Bahía Magdalena, Mexico.Se determinó la estructura de peces asociada a factores ambientales en una laguna costera con manglar denominada "Rancho Bueno". Se utilizó una red de arrastre experimental para la captura y se identificaron 62 especies de peces de 48 géneros y 30 familias. Las especies más importantes fueron Etropus crossotus, Eucinostomus gracilis, Paralabrax maculatofasciatus, Sphoeroides annulatus y Eucinostomus dowii. La temperatura del agua varió estacionalmente, siendo cálida de julio a diciembre y fría de enero a junio. Se registró un mayor número de especies de peces durante la época cálida comparada con la época fría. La zona sur de la laguna costera presentó una mayor diversidad y riqueza específica. El menor tamaño de los peces registrados, confirma el papel ecológico de las lagunas costeras, consideradas como áreas de crianza las cuales proporcionan protección y alimentación a los peces de importancia comercial cerca de Bahía Magdalena, México.

  10. A new statistical scission-point model fed with microscopic ingredients to predict fission fragments distributions; Developpement d'un nouveau modele de point de scission base sur des ingredients microscopiques

    Energy Technology Data Exchange (ETDEWEB)

    Heinrich, S

    2006-07-01

    Nucleus fission process is a very complex phenomenon and, even nowadays, no realistic models describing the overall process are available. The work presented here deals with a theoretical description of fission fragments distributions in mass, charge, energy and deformation. We have reconsidered and updated the B.D. Wilking Scission Point model. Our purpose was to test if this statistic model applied at the scission point and by introducing new results of modern microscopic calculations allows to describe quantitatively the fission fragments distributions. We calculate the surface energy available at the scission point as a function of the fragments deformations. This surface is obtained from a Hartree Fock Bogoliubov microscopic calculation which guarantee a realistic description of the potential dependence on the deformation for each fragment. The statistic balance is described by the level densities of the fragment. We have tried to avoid as much as possible the input of empirical parameters in the model. Our only parameter, the distance between each fragment at the scission point, is discussed by comparison with scission configuration obtained from full dynamical microscopic calculations. Also, the comparison between our results and experimental data is very satisfying and allow us to discuss the success and limitations of our approach. We finally proposed ideas to improve the model, in particular by applying dynamical corrections. (author)

  11. A point of view on the energy needs and supplies for 2050; Un point de vue sur les besoins et les approvisionnements en energie a l'horizon 2050

    Energy Technology Data Exchange (ETDEWEB)

    Bauquis, P.R. [Institut francais de l' energie, 75 - Paris (France)]|[TotalFinaElf La Defense 6, 92 - Courbevoie (France)

    2002-07-01

    In the framework of the increase of the primary energy consumption in the future, the author discusses the hypothesis proposed by the economists. The following points are detailed: the economic growth, the demography, the reserves and resources in fossil coal, the renewable energies and nuclear future, the world energy accounting for 2050. (A.L.B.)

  12. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: Southern California: SOCECON (Socioeconomic Resource Points and Lines)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains human-use resource point data for access sites, airports, aquaculture sites, beaches, boat ramps, marinas, coast guard facilities, oil...

  13. Le point sur l'initiative NEHSI

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

    soient affectées de manière à avoir des effets tangibles. Elle a pour but de faire en sorte que les planificateurs .... à bien, et on en a fait la démonstration aux autorités. Mesure de la malnutrition dans le cadre de l'audit social ... infantile, y compris des médicaments, et l'amélioration du fonctionnement de ces établissements;.

  14. Genealogías feministas: sobre mujeres, revoluciones e ilustración: una mirada desde el sur Feminist genealogies: on women, revolution & enlightment: a point of view from the south

    Directory of Open Access Journals (Sweden)

    Alejandra Ciriza Jofré

    2012-12-01

    Full Text Available Este trabajo apunta a la esbozar y reconstruir genealogías feministas desde el sur, procurando articular la reflexión filosófica sobre el pasado político de las mujeres y los fragmentos dispersos de la historia de las mujeres en Nuestra América. La lectura que me propongo realizar se halla ligada a una perspectiva sobre la relación entre pasado y presente vinculada a la inspiración benjaminiana. Desde ese punto de vista, el pasado que interesa a los y las subalternas es el tiempo ahora, esto es, un tiempo que se nutre del pasado, de la mirada hacia atrás, hacia ese momento significativo en la historia de Nuestra América - el de las guerras de independencia - y el presente. En aquel tiempo se abría un horizonte entonces anticipado como de inauguración de un nuevo tiempo y de un orden político nuevo. Esta reflexión está centrada en las relaciones entre cuerpo, política e historia desde un punto de vista que busca construir conocimiento situado, y producir una crítica a la tendencia a retornar sobre la idea del carácter a-histórico de la subordinación de las mujeres, a transformarla en lo que Geneviève Fraisse denomina una 'querella', un debate sin tiempo en el que se juega la eterna repetición de lo mismo. Una operación que, desde el punto de vista que sostengo, se duplica en el caso de las mujeres del sur.The goal of this work is to sketch and reconstruct Feminist Genealogies from a southern perspective. It aims to articulate a philosophical reflection on women's political past and the disperse fragments of the history of women (herstory in Our America. This reading will be based on the Benjaminian thought about the relationship between past and present. From this point of view, the past that concerns subalterns is the jetzt zeit, a present time that is fed from the regard to the past. Namely, in this case, the relationship between a significant time of the History of Our America - the time of the Independence Wars during

  15. Point of view of experts from Columbia university, New-york, and from University of California, Berkeley

    International Nuclear Information System (INIS)

    Brenner, D.J.; Sachs, R.K.; Donadieu, J.

    2006-01-01

    In a widely circulated document, a group of French renowned scientists from French Academia of sciences suggests that the risk of cancer induced by ionizing radiation is for the low doses smaller by unit than this one established for strong doses that is to say for the doses where an effect has been demonstrated by epidemiological studies. It suggests particularly that at very low doses, the excess of cancers could be null even negative. Although there is considerable uncertainty about the carcinogenic effect of low doses, we believe that the authors have not provided a convincing argument in favor of their hypotheses, from a quantitative point of view or a qualifying one. The main argument of the authors is based on biological arguments demonstrating that very low doses of radiation induce lesions in a limited number of cells, making possible the elimination of these cells either by cell death, or by another mechanism. Thus, one would be led to define a threshold below which there is no increased cancer risk. But the arguments do not seem sufficient to draw such conclusions. (N.C.)

  16. Monitoring breeding and migration of neotropical migratory birds at Point Loma, San Diego County, California, 5-year summary, 2011–15

    Science.gov (United States)

    Lynn, Suellen; Madden, Melanie C.; Kus, Barbara E.

    2017-04-27

    Executive SummaryWe operated a bird banding station on the Point Loma peninsula in western San Diego County, California, during spring and summer from 2011 to 2015. The station was established in 2010 as part of a long-term monitoring program for neotropical migratory birds during spring migration and for breeding birds as part of the Monitoring Avian Productivity and Survivorship (MAPS) program.During spring migration (April and May), 2011–15, we captured 1,760 individual birds of 54 species, 91 percent (1,595) of which were newly banded, fewer than 1 percent (3) of which were recaptures that were banded in previous years, and 9 percent (143 hummingbirds, 2 hawks, and 17 other birds) of which we released unbanded. We observed an additional 22 species that were not captured. Thirty-four individuals were captured more than once. Bird capture rate averaged 0.49 ± 0.07 captures per net-hour (range 0.41–0.56). Species richness per day averaged 6.87 ± 0.33. Cardellina pusilla (Wilson’s warbler) was the most abundant spring migrant captured, followed by Empidonax difficilis (Pacific-slope flycatcher), Vireo gilvus (warbling vireo), Zonotrichia leucophrys (white-crowned sparrow), and Selasphorus rufus (rufous hummingbird). Captures of white-crowned sparrow decreased, and captures of Pacific-slope flycatcher increased, over the 5 years of our study. Fifty-six percent of known-sex individuals were male and 44 percent were female. The peak number of new species arriving per day ranged from April 1 (2013-six species) to April 16 (2012-five species). A significant correlation was determined between the number of migrants captured each day per net-hour and the density of echoes on the Next-Generation Radar (NEXRAD) images across all 5 years, and in each year except 2014. NEXRAD radar imagery appears to be a useful tool for detecting pulses in migration.Our results indicate that Point Loma provides stopover habitat during migration for 76 migratory species, including 20

  17. Physical and chemical profile data collected from CTD and XBT aboard the R/V Point Sur in the Pacific Ocean as part of the CalCOFI Line 67 in March 2012 (NODC Accession 0098772)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Following in a long tradition of hydrographic studies of the California Current system, the data in this report were collected during the 27-30 March 2012 cruise of...

  18. California Bioregions

    Data.gov (United States)

    California Natural Resource Agency — California regions developed by the Inter-agency Natural Areas Coordinating Committee (INACC) were digitized from a 1:1,200,000 California Department of Fish and...

  19. Efecto genético del aislamiento geográfico de la liebre negra (Lepus insularis), endémica de Isla Espíritu Santo, Baja California Sur, México

    OpenAIRE

    Cervantes, Fernando A.; Castañeda, Mario

    2012-01-01

    Este estudio evaluó la magnitud de la divergencia genética entre Lepus insularis y L. californicus xanti de la Península de Baja California causada por el aislamiento geográfico de L. insularis efectuando un análisis de aloenzimas. Los resultados se compararon con un sistema biogeográfico similar que se presenta entre L. c. sheldoni de Isla Carmen y L. c. martirensis con distribución de la región norte de la Península. Se examinaron 26 loci con muestras de tejido de corazón y riñón mediante l...

  20. Louse flies on birds of Baja California

    OpenAIRE

    Tella, José Luis; Rodríguez-Estrella, Ricardo; Blanco, Guillermo

    2000-01-01

    Louse flies were collected from 401 birds of 32 species captured in autumn of 1996 in Baja California Sur (México). Only one louse fly species (Microlynchia pusilla) was found. It occurred in four of the 164 common ground doves (Columbina passerina) collected. This is a new a host species for this louse fly.

  1. Altiplano Sur de Bolivia

    OpenAIRE

    Alvarez-Flores, Ricardo; Bommel, Pierre; Bourliaud, Jean; Chevarria Lazo, Marco; Cortes, Geneviève; Cruz, Pablo; Del Castillo, C.; Gasselin, Pierre; Joffre, Richard; Leger, Francois; Nina Laura, Juan Peter; Rambal, Serge; Rivière, Gilles; Tichit, Muriel; Tourrand, Jean-François

    2014-01-01

    Alimento de base de las poblaciones andinas desde hace milenios, la quinua se ha convertido hoy en un producto apreciado en el mercado internacional de alimentos dietéticos, orgánicos y equitativos. Este cambio lo iniciaron los mismos productores del Altiplano Sur de Bolivia hace aproximadamente unos 40 años. En medio de un desierto de altura, ellos lograron desarrollar una floreciente producción agrícola de exportación. Aunque cuentan con lucrativos nichos de mercado, los productores de quin...

  2. SWFSC/MMTD/CCE: California Harbor Porpoise Survey (CAHPS) 1995

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — A ship-based marine mammal survey in California from Point Conception, California to the California-Oregon border, with the survey extent limited to waters from the...

  3. Un point de généalogie sur deux orfèvres parisiens du XIXe siècle : les « Favier » orfèvres parisiens de grosserie

    Directory of Open Access Journals (Sweden)

    Claude Aliquot

    2009-11-01

    Full Text Available C’est par un arrêté du directoire exécutif en date du 21 Brumaire an V (11 novembre 1796 qu’il a été fait obligation aux fabricants de métaux précieux d’insculper, sur une table de cuivre déposée dans les bureaux de l’administration, leur nouveau poinçon afin de les identifier, le contenu de cette insculpation de forme losangique étant laissé à la diligence de l’orfèvre. Il devait être biffé lors de l’arrêt d’activité du titulaire ; ceci n’a pas toujours été le cas, comme le montre l’examen de la production de l’atelier Favier.A departmental order of the Executive Directory, signed on 21 Brumaire Year V (11 November 1796 instructed craftsmen working with precious metals to inscribe their new proof-mark on a copper plate table held in the offices of the administration. This proof-mark, designed to identify the silver or gold smith was to be in the shape of a lozenge but its contents were left to the diligence of the smith. It was supposedly struck off the record when the craftsman ceased operations, but this was not necessarily the case, as our examination of the production of the Favier workshop demonstrates.

  4. On the determination of the heat of fusion of one of the constituents of a binary mixture from the heat of fusion of the other, by measurement of the slopes of two liquidus curves at the eutectic point; Sur la determination de la chaleur de fusion d'un des constituants d'un melange binaire a partir de la chaleur de fusion de l'autre, par mesure des pentes des deux liquidus au point d'eutexie

    Energy Technology Data Exchange (ETDEWEB)

    Dode, Maurice; Hagege, Raoul [Commissariat a l' energie atomique et aux energies alternatives - CEA (France)

    1959-07-01

    A method for calculating latent heats of fusion from binary diagrams of liquid-solid equilibrium was proposed several years ago by J. Bousquet and one of us. The method is base on the hypothesis of the regularity of the solution in a small region around the eutectic and involves an integration along the liquidus curves slightly extrapolated below the eutectic point. Reprint of a paper published in Comptes rendus des seances de l'Academie des Sciences, t. 248, p. 2339-2341, sitting of April 20, 1959 [French] Une methode de calcul des chaleurs latentes de fusion a partir des diagrammes binaires d'equilibre liquide-solide a ete proposee il y a quelques annees par J. Bousquet et l'un de nous. La methode repose sur l'hypothese de la regularite de la solution dans un petit domaine autour de l'eutectique et comporte une integration le long des liquidus, legerement extrapoles en dessous de l'eutectique. Reproduction d'un article publie dans les Comptes rendus des seances de l'Academie des Sciences, t. 248, p. 2339-2341, seance du 20 avril 1959.

  5. Advanced Aircraft Interfaces: The Machine Side of the Man-Machine Interface (Les Interfaces sur les Avions de Pointe: L’Aspect Machine de l’Interface Homme-Machine)

    Science.gov (United States)

    1992-10-01

    cooperation Spanish but we could say : El Lado Maquina en la in which scientists of NATO Countries can exchange Tecnologia de ia Relacion Hombre-Maquina en los...growing additive mixing are supported. graphical power in 2D- and 3D aspects we decided on a general purpose architecture (Texas 34020). 3.7. Displays...display a target wireframe image with 100 3D points, connected via 300 3D -vectors, in realtime (60 Hz.) update rate to the HMD. 7.3. X31A-HDD One aspect of

  6. Colloids: a review of current knowledge with a view to application to phenomena of transportation within PWR; Colloides: point de vue sur les connaissances actuelles en vue d`une application aux phenomenes de transport dans les REP

    Energy Technology Data Exchange (ETDEWEB)

    Guinard, L.

    1996-12-31

    In an attempt to minimise dosimetry within the primary circuit of PWR units, research is being carried out into understanding the phenomena of transportation and deposition of corrosion products. It is therefore desirable to known the form of these corrosion products and the laws governing this form. It is generally considered that they are in soluble or particulate form. A third starts with a general presentation of colloids and goes on to define points which are useful, both on a theoretical and experimental level, in terms of application to phenomena of transportation within PWRs. (author). 69 refs., 30 figs., 6 tabs., 3 appends.

  7. California State Waters Map Series—Offshore of Monterey, California

    Science.gov (United States)

    Johnson, Samuel Y.; Dartnell, Peter; Hartwell, Stephen R.; Cochrane, Guy R.; Golden, Nadine E.; Watt, Janet T.; Davenport, Clifton W.; Kvitek, Rikk G.; Erdey, Mercedes D.; Krigsman, Lisa M.; Sliter, Ray W.; Maier, Katherine L.; Johnson, Samuel Y.; Cochran, Susan A.

    2016-08-18

    IntroductionIn 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of swath bathymetry data, acoustic backscatter, seafloor video, seafloor photography, high-resolution seismic-reflection profiles, and bottom-sediment sampling data. The map products display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow subsurface geology.The Offshore of Monterey map area in central California is located on the Pacific Coast, about 120 km south of San Francisco. Incorporated cities in the map area include Seaside, Monterey, Marina, Pacific Grove, Carmel-by-the-Sea, and Sand City. The local economy receives significant resources from tourism, as well as from the Federal Government. Tourist attractions include the Monterey Bay Aquarium, Cannery Row, Fisherman’s Wharf, and the many golf courses near Pebble Beach, and the area serves as a gateway to the spectacular scenery and outdoor activities along the Big Sur coast to the south. Federal facilities include the Army’s Defense Language Institute, the Naval Postgraduate School, and the Fleet Numerical Meteorology and Oceanography Center (operated by the Navy). In 1994, Fort Ord army base, located between Seaside and Marina, was closed; much of former army base land now makes up the Fort Ord National Monument, managed by the U.S. Bureau of Land Management as part of the National Landscape Conservation System. In addition, part of the old Fort Ord is now occupied by California State University, Monterey Bay.The offshore part of the map area lies entirely within the Monterey Bay National

  8. Thousands and thousands of kilowatt-hours saved: Results from The Energy Efficiency McDonalds (TEEM) demonstration project in Bay Point, California

    Energy Technology Data Exchange (ETDEWEB)

    Allen, T.; Young, R.; Spata, T.; Smith, V.

    1998-07-01

    Food service operations use more energy per square foot than any other commercial buildings and yet, the opportunity to build energy efficient restaurants is often overlooked due to a lack of information and education within the industry. To meet this challenge and stimulate energy-efficient restaurant design, McDonald's Corporation, the nation's largest restaurant chain, and Pacific Gas and Electric (PG and E), one of the largest combined fuel utilities, are working together in a program called The Energy Efficient McDonald's, or TEEM. TEEM will identify, demonstrate and evaluate energy-saving technologies with the goal of integrating cost-effective energy-efficient technologies into McDonalds universal building specification and giving existing store operators the opportunity to improve their operations. Technologies installed at the TEEM store in Bay Point include: direct evaporative cooler, evaporative precooler, high-efficiency air conditioners, high-efficiency and two-speed exhaust fans, advanced glazing systems, tubular skylights, low-cost dimming controller and electronic ballasts, T-8 fluorescent fixtures. low-temperature occupance sensors for walking cooler/freezer, and an energy management system. An extensive data collection system has been collecting data since the store opened in June 1996. This paper will present the performance results of the energy efficient measures installed using measured data analysis techniques.

  9. The Correlation Between Porosity, Density and Degree of Serpentinization in Ophiolites from Point Sal, California: Implications for Strength of Oceanic Lithosphere

    Science.gov (United States)

    Karrasch, A. K.; Farough, A.; Lowell, R. P.

    2017-12-01

    Hydration and serpentinization of oceanic lithosphere influences its strength and behavior under stress. Serpentine content is the limiting factor in deformation and the correlation between crustal strength and the degree of serpentinization is not linear. Escartin et al., [2001] shows that the presence of only 10% serpentine results in a nominally non-dilatant mode of brittle deformation and reduces the strength of peridotites dramatically. In this study, we measured density and porosity of ophiolite samples from Point Sal, CA that had various degrees of serpentinization. The densities ranged between 2500- 3000 kg/m3 and porosities ranged between 2.1-4.8%. The degree of serpentinization was estimated from mineralogical analysis, and these data were combined with that of 4 other samples analyzed by Farough et al., [2016], which were obtained from various localities. The degree of serpentinization varied between 0.6 and 40%. We found that degree of serpentinization was inversely correlated with density with a slope of 7.25 (kg/m3)/%. Using Horen et al., [1996] models, estimated P-wave velocity of the samples ranged between 6.75-7.90 km/s and S-wave velocity ranged between 3.58-4.35 km/s. There were no distinguishable difference in the results between olivine-rich or pyroxene-rich samples. These results, along with correlations to strength and deformation style, can be used as a reference for mechanical properties of the crust at depth, analysis of deep drill cores and to estimate the rate of weakening of the oceanic crust after the onset of serpentinization reactions.

  10. La piraterie sur le web

    CERN Multimedia

    2002-01-01

    Les échanges de toutes sortes sont facilités à l'extrême par le web: des forums, des vidéoconférences, le commerce à distance, ou tout simplement la célérité des courriers électroniques ou la convivialité des chats, tout cela participe de la société de communication. Une certaine partie du monde découvre le nouvel horizon des échanges quasi instantanés, mais... les transactions sur le web sont-elles vraiment s res?

  11. Case Study of the California Low Level Coastal Jet Comparisons Between Observed and Model-Estimated Winds and Temperatures using WRF and COAMPS

    Science.gov (United States)

    Tomé, Ricardo; Semedo, Alvaro; Ranjha, Raza; Tjernström, Michael; Svensson, Gunilla

    2010-05-01

    Prediction System) in resolving the California LLCJ, off the Big Sur coast. Model runs with different resolutions (6Km and 2Km) are verified against vertical profiles of wind speed and direction, and temperature, from radiosondes. The radiosondes profiles used here were collected during a scientific cruise, off the coast of California, on board the research vessel Point Sur, from 4 to 7 August, 2004. The data were collected along and perpendicular to the coast of Big Sur, south of Point Sur, where an area of supercritical flow adjustment took place.

  12. Quelques commentaires sur les personnages de fiction

    Directory of Open Access Journals (Sweden)

    Umberto Eco

    2010-06-01

    Full Text Available L’auteur met en place des observations et développe des analyses sur le statut des personnages de fiction, mettant à contribution les ressources de l’histoire, de la littérature, de la sémiotique, de la logique et de la narratologie. De quelle vie particulière vivent les personnages de roman, qui fait que nous sommes capables de les tenir pour plus réels que des personnages réels, et que nous sommes enclins à éprouver les sentiments qu’ils éprouvent, même si nous savons qu’ils n’existent pas ? Comment ces personnages de fiction existent-ils, selon quelle « partition » leur existence se développe-t-elle au point d’interférer avec la nôtre ? L’interrogation porte sur la nature de ce flux émotionnel qui s’écoule du lecteur vers les personnages de fiction et les investit de valeur, sur ce qui se projette de la vie vers le roman, entraînant avec lui le lecteur qui se trouve de la sorte impliqué malgré lui dans l’histoire, et se trouve pris dans le mécanisme de l’identification et de la vie fictive.Some commentaries about fiction charactersPutting into form a number of observations and developing an analysis on the status of fiction characters, the author draws on resources coming from history, literature, semiotic, logic et narration. What is that particular life lived by fiction characters that enable us to consider them as being more real than real characters, and to experience the feelings that they experience, even though we know that they do not exist? How do these characters exist? In other words, according to what “script” does their existence develop to the point of interfering with ours? The questioning centres on the nature of the emotional flux which flows from the reader towards the fictional characters thus giving them value, and on what it is which is projected from real life towards the novel and which is capable of sweeping up the reader who, without having particularly intended to do

  13. California-Mexico gas exports eyed

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This paper reports that two California utilities have proposed providing natural gas transportation services to Mexico. The arrangement would provide a second U.S. export sales point at the U.S.-Mexico border and perhaps help alleviate an expected surplus of gas pipeline capacity available to California. Mexico currently imports about 200 MMcfd of U.S. gas via pipelines in Texas

  14. Sur des erres de jazz

    OpenAIRE

    Daverat, Xavier

    2007-01-01

    Une opinion commune considère que le jazz vivrait une période de dépérissement ou de ressassement. Cette conception est d’abord basée sur une erreur qui consiste à croire que le jazz évolue uniquement au travers de relèves entre les générations, de substitutions complètes de nouveaux styles à des formes d’expression qui se démoderaient aussitôt, d’instaurations systématiques de nouveaux langages opposés à ceux qui les ont précédés. Au contraire, les caractéristiques de chaque style s’imbrique...

  15. Experiments with the SUR 100 training reactor

    International Nuclear Information System (INIS)

    Milicic, B.

    1984-06-01

    This paper contains a compilation of various experiments using the SUR - 100 reactor for training purposes, which have been widly proved in practical work at the School for Nuclear Technology of the Karlsruhe Research Center. (orig.) [de

  16. California Political Districts

    Data.gov (United States)

    California Natural Resource Agency — This is a series of district layers pertaining to California'spolitical districts, that are derived from the California State Senateand State Assembly information....

  17. Rapport sur le développement dans le monde sur le thème du rôle ...

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

    ... rural et sont tributaires principalement de l'agriculture pour assurer leur subsistance. Ce projet permettra de veiller à ce qu'une place soit accordée aux travaux de recherche financés par le CRDI, aux points de vue différents et aux auteurs de l'hémisphère Sud dans le Rapport sur le développement dans le monde 2008.

  18. Estilos estructurales del Subandino Sur de Bolivia

    OpenAIRE

    Rocha, Emilio

    2013-01-01

    El Subandino Sur de Bolivia es una típica faja plegada y corrida de lámina delgada, con una notable regularidad en la geometría de las estructuras. Esta es una característica típica de las fajas plegadas en las que no se involucra el basamento en la deformación. Sin embargo, cuando se analiza en detalle la geometría y evolución de la deformación del Subandino Sur, se verifica que existen numerosas desviaciones de dicha regularidad. En el presente trabajo se estudiaron los diferentes procesos ...

  19. The California Baseline Methane Survey

    Science.gov (United States)

    Duren, R. M.; Thorpe, A. K.; Hopkins, F. M.; Rafiq, T.; Bue, B. D.; Prasad, K.; Mccubbin, I.; Miller, C. E.

    2017-12-01

    The California Baseline Methane Survey is the first systematic, statewide assessment of methane point source emissions. The objectives are to reduce uncertainty in the state's methane budget and to identify emission mitigation priorities for state and local agencies, utilities and facility owners. The project combines remote sensing of large areas with airborne imaging spectroscopy and spatially resolved bottom-up data sets to detect, quantify and attribute emissions from diverse sectors including agriculture, waste management, oil and gas production and the natural gas supply chain. Phase 1 of the project surveyed nearly 180,000 individual facilities and infrastructure components across California in 2016 - achieving completeness rates ranging from 20% to 100% per emission sector at < 5 meters spatial resolution. Additionally, intensive studies of key areas and sectors were performed to assess source persistence and variability at times scales ranging from minutes to months. Phase 2 of the project continues with additional data collection in Spring and Fall 2017. We describe the survey design and measurement, modeling and analysis methods. We present initial findings regarding the spatial, temporal and sectoral distribution of methane point source emissions in California and their estimated contribution to the state's total methane budget. We provide case-studies and lessons learned about key sectors including examples where super-emitters were identified and mitigated. We summarize challenges and recommendations for future methane research, inventories and mitigation guidance within and beyond California.

  20. Entretien sur la psychanalyse: réflexions en marge

    Directory of Open Access Journals (Sweden)

    Giuseppe Martini

    2016-08-01

    Full Text Available L’auteur propose ici un commentaire sur les points les plus importants de son entretien de février 2003 avec Paul Ricœur consacré aux rapports entre herméneutique et psychanalyse. Bien que le philosophe se situe dans une réelle continuité par rapport à sa contribution de 1965, il enrichit toutefois sa réflexion philosophique sur la psychanalyse en proposant plusieurs innovations, en ce qui concerne plus particulièrement les thèmes du récit, du soi et de l’éthique. Dans les conclusions de son commentaire, l’auteur souligne l’importance des concepts d’“irreprésentable” et d’“intraduisible”: non seulement, en effet, ces concepts sont dans la ligne de nombreuses contributions de la psychanalyse contemporaine, mais la profondeur de la réflexion ricœurienne augmente en outre leur potentiel théorique et même clinique.

  1. Analyse de l'effet de la suréducation sur l'efficacité technique des ...

    African Journals Online (AJOL)

    de tire-au-flanc, et l'état de santé (Vroom 1964 ; Sheppard & Herrick 1972 ; ... impact négatif significatif de la suréducation sur la satisfaction au travail ; son ..... présence syndicale sur la performance financière de 250 entreprises américaines.

  2. Southern California Coastal Processes Annotated Bibliography.

    Science.gov (United States)

    1985-12-01

    05/01/71 TITLE : Avalon Transportation Wharf CITATION : Journal of Waterways, Harbors and Coastal Engineering Division, ASCE, N. Y., Vol. 97, No. WW2 ...105, No. WW2 ; ASCE, N. Y., pp. 131-147 DESCRIPTION s Effect of various offshore structures as significant barriers to normal wave progress...California, 33 pp. DESCRIPTION Infrared satellite images are shown for each of two areas near +- the California coast, Cape Mendocino and Point

  3. Étude sur l'entrepreneuriat dalit : Regard sur 25 % de la population ...

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

    Étude sur l'entrepreneuriat dalit : Regard sur 25 % de la population indienne. Cette étude, pilotée par Udit Raj, député du parlement indien, aide à mieux comprendre les contraintes que rencontrent les entrepreneurs dalits. Elle permettra de sonder 12 000 entrepreneurs dalits dans 14 états et de recueillir des données ...

  4. Étude du Partenariat de recherche sur l'influenza aviaire en Asie sur ...

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

    Étude du Partenariat de recherche sur l'influenza aviaire en Asie sur l'efficacité des mesures de lutte. L'influenza aviaire hautement pathogène (H5N1) est une grave maladie qui touche la volaille et contamine les êtres humains dans une faible proportion. L'Organisation mondiale de la santé croit que le virus pourrait subir ...

  5. California Condor Critical Habitat

    Data.gov (United States)

    California Natural Resource Agency — These Data identify (in general) the areas where critical habitat for the California Condor occur. Critical habitat for the species consists of the following 10...

  6. Teale California shoreline

    Data.gov (United States)

    California Natural Resource Agency — California Spatial Information System (CaSIL) is a project designed to improve access to geo-spatial and geo-spatial related data information throughout the state of...

  7. California Workforce: California Faces a Skills Gap

    Science.gov (United States)

    Public Policy Institute of California, 2011

    2011-01-01

    California's education system is not keeping up with the changing demands of the state's economy--soon, California will face a shortage of skilled workers. Projections to 2025 suggest that the economy will continue to need more and more highly educated workers, but that the state will not be able to meet that demand. If current trends persist,…

  8. California State Waters Map Series: offshore of San Gregorio, California

    Science.gov (United States)

    Cochrane, Guy R.; Dartnell, Peter; Greene, H. Gary; Watt, Janet T.; Golden, Nadine E.; Endris, Charles A.; Phillips, Eleyne L.; Hartwell, Stephen R.; Johnson, Samuel Y.; Kvitek, Rikk G.; Erdey, Mercedes D.; Bretz, Carrie K.; Manson, Michael W.; Sliter, Ray W.; Ross, Stephanie L.; Dieter, Bryan E.; Chin, John L.; Cochran, Susan A.; Cochrane, Guy R.; Cochran, Susan A.

    2014-01-01

    the northern and southern parts of the map area are the result of right-lateral motion on strands of the San Gregorio Fault system. In the south, headlands near Pescadero Point have been uplifted by motion along the west strand of the San Gregorio Fault (also called the Frijoles Fault), which separates rocks of the Pigeon Point Formation south of the fault from rocks of the Purisima Formation north of the fault. The regional uplift in this map area has caused relatively shallow water depths within California's State Waters and, thus, little accommodation space for sediment accumulation. Sediment is observed offshore in the central part of the map area, in the shelter of the headlands north of the east strand of the San Gregorio Fault (also called the Coastways Fault) around Miramontes Point (about 5 km north of the map area) and also on the outer half of the California's State Waters shelf in the south where depths exceed 40 m. Sediment in the outer shelf of California's State Waters is rippled, indicating some mobility. The Offshore of San Gregorio map area lies within the cold-temperate biogeographic zone that is called either the "Oregonian province" or the "northern California ecoregion." This biogeographic province is maintained by the long-term stability of the southward-flowing California Current, an eastern limb of the North Pacific subtropical gyre that flows from Oregon to Baja California. At its midpoint off central California, the California Current transports subarctic surface (0–500 m deep) waters southward, about 150 to 1,300 km from shore. Seasonal northwesterly winds that are, in part, responsible for the California Current, generate coastal upwelling. The south end of the Oregonian province is at Point Conception (about 350 km south of the map area), although its associated phylogeographic group of marine fauna may extend beyond to the area offshore of Los Angeles in southern California. The ocean off of central California has experienced a warming

  9. Families in the making: gestational surrogate mothers in California

    OpenAIRE

    Bjørn, Henriette Hårseide

    2014-01-01

    This thesis is based on a field work I conducted in California from January to June 2012, where I explore how gestational surrogate mothers experience the process of surrogacy and how California law has dealt with ART-cases. Through exploring surrogacy from different view point, and in particular from the view of surrogate mothers, this has given an insightful view into surrogacy in California. I have identified two court cases which are important for the establishment of parental rights in s...

  10. Sacramento Metropolitan Area, California

    Science.gov (United States)

    1992-02-01

    addition, several Federal candidate species, the California Hibiscus , California tiger salamander, Sacramento Anthicid Beetle, Sacramento Valley tiger...Board, California Waste Management Board, and Department of Health Services contribute to this list. The Yolo County Health Services Agency maintains and...operation and maintenance of the completed recreational facility. Recreation development is limited to project lands unless health and safety

  11. Publication du rapport de BSR sur le travail des enfants en Birmanie ...

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

    22 juin 2016 ... Le rapport, intitulé « Child Labor in Myanmar's Garment Sector », a été préparé par Business for Social Responsibility (BSR). Il arrive à point nommé, car les intervenants du monde des affaires sur la scène internationale manifestent un intérêt croissant à l'égard du Myanmar, parallèlement à la levée des ...

  12. Sur la plurifonctionnalité du discours direct

    Directory of Open Access Journals (Sweden)

    Cigada Sara

    2012-07-01

    Full Text Available La comparaison entre les résultats de nombreux travaux sur le dialogue dans le texte littéraire, sur l’attestation linguistique de la subjectivité, sur la fonction argumentative des émotions dans le discours et sur les effets de polyphonie, suggère que la structure sémiotique et linguistique du discours direct (DD se trouve au croisement stratégique de plusieurs axes de la construction discursive. Nous étudions donc l’insertion du DD dans le discours (cf. Rosier 2008: Le discours rapporté en français; Kerbrat 2005: Le Discours en interaction et Id. 2008: Le Dialogue comme objet d’analyse linguistique; Maingueneau 2010: Manuel de linguistique pour le texte littéraire en tant que phénomène de rupture sémiotique (Genette 1972: Figures III et Id. 1983: Nouveau discours du récit, dans ses fonctions discursives plurielles, tantôt émotives (Tannen 1989: Talking Voices; Plantin-Traverso-Vosghanian 2008: Parcours des émotions en interaction, tantôt argumentatives (Doury 2001: La Fonction argumentative des échanges rapportés; Stati 1990: Le transphrastique. Du point de vue méthodologique, nous nous proposons de revisiter empiriquement, par l'étude de corpus, les traits linguistiques structuraux qui caractérisent l’insertion du DD dans un récit à l'écrit, en les comparant systématiquement aux traits de l’insertion du DD dans un récit à l'oral. Une analyse parallèle est possible en ce qui concerne les fonctions discursives, que le DD typiquement déroule dans les récits. Les fonctions du DD décrites à partir de l'étude des corpus sont plurielles: on reconnaît des fonctions fortement argumentatives d'autres plus typiquement narratives, tandis que d'autres encore amalgament les deux fonctions. Le « contrat de littéralité », qui selon Genette ne porterait jamais que sur la teneur du discours, doit donc être fortement nuancé selon les contextes, tandis que l'effet de sens le plus directement lié à la

  13. Tipping Point

    Medline Plus

    Full Text Available ... en español Blog About OnSafety CPSC Stands for Safety The Tipping Point Home > 60 Seconds of Safety (Videos) > The Tipping Point The Tipping Point by ... danger death electrical fall furniture head injury product safety television tipover tv Watch the video in Adobe ...

  14. Enquêtes sur les soucoupes volantes

    OpenAIRE

    Lagrange, Pierre

    2007-01-01

    La dispute autour du mot « preuve » se réduit à une question : Qu'est-ce qui constitue une preuve ? Faut-il qu'un ovni atterrisse à l'entrée du Pentagone, près des bureaux des chefs d'État-Major ? Ou bien est-ce une preuve quand une station de radar au sol détecte un ovni, envoie un jet l'intercepter, que le pilote du jet le voit et le suit sur son radar pour finir par le voir disparaître à une vitesse phénoménale ? Ou est-ce une preuve quand un pilote tire sur un ovni et maintient son histoi...

  15. Controverses sur les sucres [Controversies about sugars

    Directory of Open Access Journals (Sweden)

    Malika BOUCHENAK

    2016-12-01

    Full Text Available La surconsommation de sucres ajoutés et leurs effets putatifs sur diverses pathologies cardiométaboliques continuent de susciter des controverses. Dans les années 1950, le taux élevé de maladies cardiovasculaires (MCV, chez les hommes Américains a conduit à des études sur le rôle des facteurs alimentaires, tels que le cholestérol, les phytostérols, l'excès de calories, les acides aminés, les graisses, les glucides, les vitamines et les minéraux, à influencer le risque de MCV. Dans les années 60, deux éminents physiologistes, plaidant pour des hypothèses causales divergentes de MCV, John Yudkin a identifié les sucres ajoutés comme agent primaire, tandis que Ancel Keys identifiait les graisses totales, les graisses saturées et le cholestérol alimentaire. Cependant, dans les années 80, peu de scientifiques croyaient que les sucres ajoutés jouaient un rôle important dans la maladie coronarienne, et les premiers conseils nutritionnels de 1980 (1980 Dietary Guidelines for americans étaient axés sur la réduction des graisses totales, des graisses saturées et du cholestérol alimentaire pour la prévention des MCV.

  16. Commentaires à propos de la loi française sur le harcèlement moral au travail

    OpenAIRE

    Marie-France Hirigoyen; Claire Bonafons

    2005-01-01

    Les auteurs montreront comment en France, à partir d’une simple description de la souffrance engendrée par le harcèlement, on a aboutit rapidement à une loi sanctionnant ce fléau, puis ils feront le point sur les jurisprudences et sur l’évolution des comportements entraînés par cette loi et enfin, ils proposeront des axes de recherches et des pistes d’amélioration des dispositions législatives existantes.The authors will show how in France, starting with a simple description of the suffering ...

  17. Commentaires à propos de la loi française sur le harcèlement moral au travail

    OpenAIRE

    Hirigoyen, Marie-France; Bonafons, Claire

    2013-01-01

    Les auteurs montreront comment en France, à partir d’une simple description de la souffrance engendrée par le harcèlement, on a aboutit rapidement à une loi sanctionnant ce fléau, puis ils feront le point sur les jurisprudences et sur l’évolution des comportements entraînés par cette loi et enfin, ils proposeront des axes de recherches et des pistes d’amélioration des dispositions législatives existantes. The authors will show how in France, starting with a simple description of the suffer...

  18. 77 FR 14349 - Availability of Report: California Eelgrass Mitigation Policy

    Science.gov (United States)

    2012-03-09

    ... contributed to these losses, impacts from human population expansion and associated pollution and upland... aquatic site under the 404(b)(1) guidelines of the Clean Water Act (40 CFR 230.43). Pursuant to the... California (U.S./Mexico border to Pt. Conception), central California (Point Conception to San Francisco Bay...

  19. Unión del magreb, un caso de regionalismo Sur-Sur

    Directory of Open Access Journals (Sweden)

    SofianE Bouhdiba

    2009-01-01

    Full Text Available Se exploran brevemente las fuerzas y limitaciones de la Unión del Magreb (UMA como una experiencia de regionalismo Sur-Sur, en el marco de mayor extensión. Se plantea la necesidad de que la UMA redireccione sus intereses, estrategias y alianzas hacia el sur, puesto que se ha vuelto un instrumento de intercambios comerciales con la Unión Europea y un eje estratégico de lucha contra el terrorismo para Estados Unidos. Además se invita a la misma UMA a que considere los alcances de instituciones de integración en América Latina y Asia a fin de fortalecerse como bloque.

  20. El (los Sur buscando al Sur. Una construcción entre estereotipos y realidad.

    Directory of Open Access Journals (Sweden)

    Mabel Franzone

    2010-11-01

    Full Text Available Todas las lecturas que podamos hacer del Sur, de sus propias representaciones, de aquellas vehiculizadas por el Norte, de sus creaciones, de sus reacciones, de su búsqueda constante de identidad, son lecturas de múltiples situaciones, que llaman a cruces insoslayables entre pueblos, entre distintas etnias, entre disciplinas, entre sentimientos que van desde el rechazo hasta la atracción casi magnética entre los dos hemisferios. Nuestra intención primera era la de reunir de manera aproximativa las problemáticas actuales de los Sur, ligadas a lo imaginario.

  1. Sur la plurifonctionnalité du discours direct

    OpenAIRE

    Cigada Sara

    2012-01-01

    La comparaison entre les résultats de nombreux travaux sur le dialogue dans le texte littéraire, sur l’attestation linguistique de la subjectivité, sur la fonction argumentative des émotions dans le discours et sur les effets de polyphonie, suggère que la structure sémiotique et linguistique du discours direct (DD) se trouve au croisement stratégique de plusieurs axes de la construction discursive. Nous étudions donc l’insertion du DD dans le discours (cf. Rosier 2008: Le discours rapporté en...

  2. Puente-paso para una estación de autobuses, California, (EE.UU.

    Directory of Open Access Journals (Sweden)

    Daniel, -

    1979-03-01

    Full Text Available The bus terminal has been built in three independent platforms, connected to one another by a 40 m-span bridge and to the two directions of traffic of the expressway below, by means of two stairs-and-lifts towers located at both ends of the access lobby, so as to facilitate pedestrian traffic to the two levels of the said expressway in the neighbourhood of the university campus. It deserves pointing out in this design, as a whole, the harmonious integration of the structural requirements — in reinforced concrete and metal window framing — with the aesthetic and functional criteria, something not commonly found in this type of buildings, more often considered as secondary and with little architectural value. This design has deserved the Honor Award of the South California Chapter of the American institute of Architects.

    Para posibilitar el acceso peatonal a los dos distintos niveles de la autopista inmediata al campus universitario, la estación de autobuses se ha realizado con tres plataformas independientes, unidas entre sí mediante un puente de 40 m de luz, y enlazadas verticalmente, con los dos sentidos de circulación de la autopista, a través de dos torres con escaleras y ascensores situados en los extremos del vestíbulo de acceso. En el conjunto destaca la armónica integración de las necesidades estructurales, resueltas a base de hormigón armado y carpintería metálica, y los valores estéticos y funcionales, pocas veces lograda en obras de esta naturaleza, normalmente consideradas como secundarias o de poco valor arquitectónico. El proyecto ha merecido el premio de honor del Instituto Americano de arquitectos de California del Sur.

  3. Fixed Points

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 5; Issue 5. Fixed Points - From Russia with Love - A Primer of Fixed Point Theory. A K Vijaykumar. Book Review Volume 5 Issue 5 May 2000 pp 101-102. Fulltext. Click here to view fulltext PDF. Permanent link:

  4. Tipping Point

    Medline Plus

    Full Text Available ... OnSafety CPSC Stands for Safety The Tipping Point Home > 60 Seconds of Safety (Videos) > The Tipping Point ... 24 hours a day. For young children whose home is a playground, it’s the best way to ...

  5. Tipping Point

    Medline Plus

    Full Text Available ... 60 Seconds of Safety (Videos) > The Tipping Point The Tipping Point by CPSC Blogger September 22, 2009 appliance child Childproofing CPSC danger death electrical fall furniture head injury product safety television tipover tv Watch the video in Adobe Flash ...

  6. Recherches sur les courants ésotériques occidentaux modernes

    OpenAIRE

    Faivre, Antoine

    2009-01-01

    Conférences de la première heure Elles ont porté principalement sur deux ouvrages récents relevant de la spécialité. Le premier, de Helmut Zander (Anthroposophie in Deutschland. Theosophische Weltanschauung und gesellschaftliche Praxis 1884‑1945, 2 vol., Vandenhoeck & Ruprecht, Göttingen 2007), fort documenté, nous a donné l’occasion de faire le point sur l’état actuel de la recherche en matière d’Anthroposophie steinerienne et de Société Théosophique. Mais nous avons commenté surtout un sous...

  7. Influence de l'état d'ameublissement et de la rugosité du sol des parcelles agricoles sur l'exactitude de l'altitude des points de contrôle positionnés au GPS

    Directory of Open Access Journals (Sweden)

    Ouédraogo, MM.

    2012-01-01

    Full Text Available Agricultural soil tilth and roughness impact on the exactness of ground control points elevation surveyed by GPS. Our goal in this study is to estimate through ranges of variation, the impact of agricultural parcels soil's tilth and roughness, due to cultivation techniques, on the exactness of ground control points elevation surveyed by RTK (Real Time Kinematic GPS (Global Positioning System. So, 16 point's elevations which were located each 100 mm on a transect have been surveyed first by using a Total Station (TS, and then a RTK GPS in 2 parcels (3 transects per parcel. Cultivation techniques on those parcels were different. The parcel 1 was tilled, and the soil of parcel 2 was prepared for cereal cropping. Then, the analysis of variance has been applied on the differences of TS and RTK GPS elevations data to estimate the confidence interval of ground control points elevation due to soil tilth, whereas the times series statistical method has been applied on elevation data to estimate the confidence interval due to soil roughness. The confidence intervals of points elevation are estimated being [51 mm; 57 mm], [-4 mm; 4 mm] for parcel 1, and [97 mm; 113 mm], [-35 mm; 23 mm], for parcel 2. Results show that ground control point's elevations exactness is influenced by soil tilth and soil roughness. In conclusion, we can admit that soil tilth and soil roughness have significant impact on the exactness of ground control points located on agricultural parcels. This impact must be considered in Digital Elevation Model (DEM errors evaluation of agricultural watershed.

  8. Influence de l'irrigation sur le rendement et sur la qualité des raisins

    Directory of Open Access Journals (Sweden)

    J. Cerny

    1968-12-01

     Le travail présenté résume les résultats de l'expérience avec l'irrigation supplémentaire de la vigne dans le domaine sec du Sud de la Moravie ainsi que son influence sur le rendement et la qualité des raisins.

  9. Nearshore marine fish diversity in southern California using trawl information from the Southern California Coastal Water Research Project.

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This is a point file of mean fish diversity within 5 minute grid cells. The Shannon Index of diversity was calculated from Southern California Coastal Water Research...

  10. Turistas hispanohablantes en Corea del Sur

    OpenAIRE

    Arroyo Herrera, Javier

    2016-01-01

    Dada la evolución económica que ha experimentado en los últimos años y el aumento de las llegadas de turistas internacionales debido a fenómenos como el Hallyu, Corea del Sur se está convirtiendo en un foco de atención turística que requiere de estudios para conocer mejor su turismo y la importancia que la cultura popular supone para éste. La presente investigación recopila los elementos más destacables del turismo surcoreano y demuestra la influencia que la „ola coreana‟ provoca en sus segui...

  11. Experiential environmental learning: A case study of innovative pedagogy in Baja Sur, Mexico

    Science.gov (United States)

    Schneller, Andrew Jon

    This mixed methods case study describes an innovative two-semester middle school environmental learning course that departs from traditional Mexican expository pedagogy through the incorporation of experiential and service learning. This research takes place in a small middle school in Pescadero, Baja California Sur, Mexico. The research approach utilized in the study adds to the handful of studies in this cross-disciplinary field by employing quantitative methodologies to measure course outcomes on student environmental knowledge, perceptions, and actions, while simultaneously qualitatively describing the behavioral, educational, environmental, and social experiences of students. This research employs Dewey's theories of experience---as well as those of more contemporary authenticity theorists---in order to identify the philosophies that advocate incorporating experiential pedagogy within the curriculum. Implications for Mexican educational policy, practical pedagogical applications, and theory are discussed.

  12. Dew Point

    OpenAIRE

    Goldsmith, Shelly

    1999-01-01

    Dew Point was a solo exhibition originating at PriceWaterhouseCoopers Headquarters Gallery, London, UK and toured to the Centre de Documentacio i Museu Textil, Terrassa, Spain and Gallery Aoyama, Tokyo, Japan.

  13. Tipping Point

    Medline Plus

    Full Text Available ... Point by CPSC Blogger September 22, 2009 appliance child Childproofing CPSC danger death electrical fall furniture head injury product safety television tipover tv Watch the video in Adobe Flash ...

  14. Tipping Point

    Science.gov (United States)

    ... Point by CPSC Blogger September 22, 2009 appliance child Childproofing CPSC danger death electrical fall furniture head injury product safety television tipover tv Watch the video in Adobe Flash ...

  15. Tipping Point

    Medline Plus

    Full Text Available ... Point by CPSC Blogger September 22, 2009 appliance child Childproofing CPSC danger death electrical fall furniture head ... see news reports about horrible accidents involving young children and furniture, appliance and tv tip-overs. The ...

  16. Tipping Point

    Medline Plus

    Full Text Available ... Point by CPSC Blogger September 22, 2009 appliance child Childproofing CPSC danger death electrical fall furniture head ... TV falls with about the same force as child falling from the third story of a building. ...

  17. Tipping Point

    Medline Plus

    Full Text Available ... Tipping Point by CPSC Blogger September 22, 2009 appliance child Childproofing CPSC danger death electrical fall furniture ... about horrible accidents involving young children and furniture, appliance and tv tip-overs. The force of a ...

  18. Regard sur les Lazarets en Terre Canadienne

    Directory of Open Access Journals (Sweden)

    Jean Milot

    2008-01-01

    Full Text Available Puisant dans les nombreuses références qu’offrent les publications médicales canadiennes du milieu du XIXe siècle à nos jours, l’auteur fait découvrir l’existence de lazarets en terre canadienne, décrit l’impact de la maladie sur les conditions vie des lépreux qui y étaient confinés et en souligne les contrecoups tant sur le plan physique et psychologique que social. Il présente un bref aperçu de la maladie, ses symptômes, ses signes ainsi que ses complications oculaires et rappelle les premiers moyens thérapeutiques à base d’huile de chaulmoogra introduits dans la colonie de Tracadie vers 1901. Il illustre son propos en évoquant la vie dans les lazarets de l’île de Sheldrake (1844–1848 et de Tracadie (1848–1965 au Nouveau-Brunswick, puis dans ceux des îles D’Arcy (1891–1924 et de Bentinck (1924–1957 en Colombie-Britannique.

  19. Spain: Europe's California.

    Science.gov (United States)

    Wilvert, Calvin

    1994-01-01

    Contends that, as Spain integrates into the European Economic Community, it is considered to be Europe's California. Asserts that making regional comparisons between California and Spain can be an effective teaching method. Provides comparisons in such areas as agriculture and tourism. (CFR)

  20. California Institute for Water Resources - California Institute for Water

    Science.gov (United States)

    Resources Skip to Content Menu California Institute for Water Resources Share Print Site Map Resources Publications Keep in Touch QUICK LINKS Our Blog: The Confluence Drought & Water Information University of California California Institute for Water Resources California Institute for Water Resources

  1. SUR. Breve informe de la Expedición Yelcho al Polo Sur (1909-1910

    Directory of Open Access Journals (Sweden)

    Ursula K. Le Guin

    2013-12-01

    Full Text Available Ursula K. Le Guin Escritora norteamericana, famosa por sus obras de ciencia fi cción y fantasía, en las cuales el tema de género ocupa una posición central. Ganadora de los premios Hugo y Nébula que la catapultaron a la fama. “SUR. A summary report of the Yelcho expedition to the Antarctic, 1909-1910”. Apáreció publicado por primera vez en la revista New Yorker, el 1° de febrero de 1982. La palabra SUR aparece en español en el original. (http://www.newyorker.com/ar Traducción de Susana E. Matallana Peláez

  2. Sexualidad, migraciones y fronteras en contextos de integración sur-sur

    Directory of Open Access Journals (Sweden)

    Martha Cecilia Ruiz

    Full Text Available Resumen Este artículo se pregunta sobre los procesos de diferenciación, jerarquización e inclusión/exclusión de poblaciones migrantes en contextos migratorios sur-sur, y sobre el rol que juega la sexualidad en estos procesos. Partiendo de un estudio etnográfico sobre las migrantes peruanas y colombianas en el sector del comercio sexual de Ecuador, se analiza la manera en que la sexualidad se convierte en un sitio privilegiado para re-imaginar las diferencias y jerarquías nacionales en un mundo globalizado e integrado regionalmente, y se explica cómo los regímenes de control sobre las migraciones y la sexualidad femenina se articulan entre sí para restablecer el orden idealizado de la nación.

  3. Transport woes threaten California production

    International Nuclear Information System (INIS)

    Anon.

    1994-01-01

    California oil producers face a loss of production this year because of constraints on pipeline and tanker transportation to Los Angeles area refineries. The potential bottleneck is occurring at a time when Outer Continental Shelf production is near capacity from Chevron Corp.'s Point Arguello project at the same time production is increasing from Exxon Corp.'s nearby Santa Ynex Unit (SYU) expansion. Both megaprojects must compete for pipeline space with onshore crude producers, notably in California's San Joaquin Valley (SJV). Recent development limiting transportation options include: An indefinite shutdown of Four Corners Pipe Line Co.'s 50,000 b/d Line No. 1, damaged by the Jan. 17 earthquake; Loss of a tanker permit by Chevron and partners for offshore Point Arguello production; Permanent shutdown of Exxon's offshore storage and treatment (OST) facility, which since 1981 has used tankers to transport about 20,000 b/d of SYU production from the Santa Barbara Channel to Los Angeles. The OST, the first commercial floating production system in the US -- placed in the Santa Barbara Channel in 1981 after a decade of precedent setting legal and political battles -- was shut down Apr. 4. The paper discusses these production concerns, available options, the OST shutdown, and the troubled history of the OST

  4. California commercial building energy benchmarking

    Energy Technology Data Exchange (ETDEWEB)

    Kinney, Satkartar; Piette, Mary Ann

    2003-07-01

    Building energy benchmarking is the comparison of whole-building energy use relative to a set of similar buildings. It provides a useful starting point for individual energy audits and for targeting buildings for energy-saving measures in multiple-site audits. Benchmarking is of interest and practical use to a number of groups. Energy service companies and performance contractors communicate energy savings potential with ''typical'' and ''best-practice'' benchmarks while control companies and utilities can provide direct tracking of energy use and combine data from multiple buildings. Benchmarking is also useful in the design stage of a new building or retrofit to determine if a design is relatively efficient. Energy managers and building owners have an ongoing interest in comparing energy performance to others. Large corporations, schools, and government agencies with numerous facilities also use benchmarking methods to compare their buildings to each other. The primary goal of Task 2.1.1 Web-based Benchmarking was the development of a web-based benchmarking tool, dubbed Cal-Arch, for benchmarking energy use in California commercial buildings. While there were several other benchmarking tools available to California consumers prior to the development of Cal-Arch, there were none that were based solely on California data. Most available benchmarking information, including the Energy Star performance rating, were developed using DOE's Commercial Building Energy Consumption Survey (CBECS), which does not provide state-level data. Each database and tool has advantages as well as limitations, such as the number of buildings and the coverage by type, climate regions and end uses. There is considerable commercial interest in benchmarking because it provides an inexpensive method of screening buildings for tune-ups and retrofits. However, private companies who collect and manage consumption data are concerned that the

  5. University of Southern California

    Data.gov (United States)

    Federal Laboratory Consortium — The focus of the University of Southern California (USC) Children''s Environmental Health Center is to develop a better understanding of how host susceptibility and...

  6. Coastal California Digital Imagery

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This digital ortho-imagery dataset is a survey of coastal California. The project area consists of approximately 3774 square miles. The project design of the digital...

  7. California Harpoon Fishery

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains vessel logbook and landings data from harpoon vessels that fish within 200 miles of the California coast, from 1974 to present. The harpoon...

  8. Kelp distribution off California

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set delineates kelp beds (Nereocystis leutkeana and Macrocystis spp.) along the Pacific Coast of California. Multiple years of kelp mapping data for the...

  9. California Ocean Uses Atlas

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset is a result of the California Ocean Uses Atlas Project: a collaboration between NOAA's National Marine Protected Areas Center and Marine Conservation...

  10. California Watershed Hydrologic Units

    Data.gov (United States)

    California Natural Resource Agency — This dataset is intended to be used as a tool for water-resource management and planning activities, particularly for site-specific and localized studies requiring a...

  11. Optimization of point sources on thin films using a statistical design approach. Application to {sup 60}Co sources; Optimisation des sources ponctuelles sur film mince par une approche experimentale de type plan d'experiences. Application aux sources de {sup 60}Co

    Energy Technology Data Exchange (ETDEWEB)

    Sanoit, J.; Leprince, B. [CEA Saclay, Dept. d' Instrumentation et de Metrologie des Rayonnements Ionisants, 91 - Gif sur Yvette (France); Vailhen, D. [CEA Saclay, Dir. de la Surete Nucleaire et de la Qualite, 91 - Gif sur Yvette (France)

    2001-07-01

    Radioactive point sources prepared by depositing weighed drops on thin membranes are commonly used in ionizing radiation metrology for 47{pi}{beta}-{gamma} coincidence counting or for low energy electrons spectrometry. The present study deals with the preparation of good quality sources having high detection yields. Some influential parameters on the source quality are studied using {sup 60}Co as radioactive tracer. An approach based on experimental statistical designs has been chosen. This approach allows us to obtain reliable results with a number of experiences lower than in the case of a systematic approach. Homogeneous {sup 60}Co sources with high metrological qualifies (R{sub {beta}}> 96 %) can be prepared using a direct deposit of {approx} 5 mg drops of {sup 60}Co solution ([Co] = 12 {mu}g/g, [HCl] = 0,5 mol/I) and dried at 60 deg C. The support of the radioactive spot is constituted with a gold coated (130 {mu}g/cm{sup 2} of Au) Vyns films (thickness 45 {mu}g/cm{sup 2}) on which a pad (diameter = 7 - 8 mm) of polystyrene microspheres (Estapor K-007) is prepared by an electro-spraying technique under 7,5 kV during 10 minutes. The alcoholic solution used for the electro-spraying step has the following chemical composition [Estapor K-007] 2.5 10{sup -2} wt % and [Tween 20] = 2.7 10{sup -2} wt %. (authors)

  12. Débats d'experts sur la réaction des femmes à la crise économique ...

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

    23 nov. 2010 ... Les expertes invitées Devaki Jain et Diane Elson ont traité des répercussions de l'actuelle crise économique mondiale sur les femmes des pays en développement, et présenté le programme économique en sept points de Casablanca Dream destiné à aider les femmes à se sortir de la pauvreté.

  13. Taxes sur les cigarettes en Tanzanie | CRDI - Centre de recherches ...

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

    On s'attend à ce que cette hausse du tabagisme ait d'importantes répercussions sur la santé publique et le développement économique. Il ressort de l'expérience d'autres régions que le moyen le plus efficace de renverser une telle tendance consiste à augmenter les taxes sur les cigarettes. Toutefois, les responsables des ...

  14. Le lancement canadien du Rapport sur les politiques alimentaires ...

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

    1 mai 2018 ... Cet événement sera filmé, puis accessible en ligne sur la chaîne YouTube du CRDI. Le Rapport sur les politiques alimentaires mondiales 2018 passe en revue les principaux faits nouveaux et événements en matière de politiques alimentaires survenus au cours de l'année. D'éminents chercheurs ...

  15. Une nouvelle ouverture sur le monde pour les femmes | CRDI ...

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

    'appellent ailleurs dans le dédale d'étals et d'allées serrés. En plus de son travail sur le marché, Jertrudes est également secrétaire de l'association des femmes qui vendent sur ce marché. Le groupe est un endroit où elles ...

  16. Gestion des agroecosystemes sur le mont agou en zone forestiere ...

    African Journals Online (AJOL)

    Dans le but d'une meilleure mise en valeur de l'espace, plusieurs espèces végétales sont cultivées en association essentiellement avec Persea americana. L'approche méthodologique est basée sur des inventaires floristiques et écologiques sur 45 placettes de 25 m x 25 m dans les agrosystèmes. Une diversité de 85 ...

  17. Recherche en partenariat sur la transition nutritionnelle et les ...

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

    l'évolution du risque a suivi et a débouché sur une stratégie de prévention ... de recherche ont pu avoir un impact sur les politiques et pro- .... Deux études étaient donc entreprises ..... à la même thématique et de recruter par eux-mêmes les.

  18. Des pratiques culturales influent sur les attaques de deux ravageurs ...

    African Journals Online (AJOL)

    La culture de tomate est attaquée par plusieurs ravageurs dont Helicoverpa armigera et Tuta absoluta. Dans le but d'évaluer l'effet des pratiques culturales de la tomate sur ces principaux ravageurs dans les Niayes (Sénégal), un échantillonnage de 98 parcelles est effectué, sur quatre cycles de culture en saison sèche, de ...

  19. Taxes sur les cigarettes en Tanzanie | IDRC - International ...

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

    Taxes sur les cigarettes en Tanzanie. De 2002 à 2007, le tabagisme a connu une hausse de 20 % en Tanzanie, une augmentation qui devrait atteindre 46 % en 2016 si la tendance se maintient. On s'attend à ce que cette hausse du tabagisme ait d'importantes répercussions sur la santé publique et le développement ...

  20. Analyse technico–économique des Aliments densifies sur les ...

    African Journals Online (AJOL)

    Une étude portant sur l'influence des aliments densifiés sur la performance de croissance des boucs roux de Maradi a été conduite entre juillet 2016 à septembre 2016. Quarante deux (42) boucs ont été répartis au hasard en six lots de sept individus. Chaque lot correspond à un aliment ou traitement préparé à partir des.

  1. Le Projet d’Ole Lando sur les Contrats

    DEFF Research Database (Denmark)

    Holle, Marie-Louise

    2017-01-01

    En 2016 le projet de recherche le plus important jusqu’à présent sur le droit nordique des contrats a pris fin et un livre, de presque 400 pages, en a marqué l’aboutissement. Le résultat du projet est un « restatement » tel qu’il existe aux États-Unis. Le Restatement porte sur les règles et les...

  2. Lignes directrices canadiennes sur la rhinosinusite chronique

    Science.gov (United States)

    Kaplan, Alan

    2013-01-01

    Résumé Objectif Présenter un résumé clinique des lignes directrices canadiennes sur la rhinosinusite chronique (RSC) qui comporte des recommandations pertinentes aux médecins de famille. Qualité des données Les auteurs des lignes directrices ont effectué une recherche documentaire systématique dans la littérature médicale et ont rédigé une ébauche de recommandations. Une cote a été donnée à la fois en fonction de la fiabilité des données probantes et de la solidité des recommandations. On a sollicité les commentaires d’experts en contenu de l’extérieur, ainsi que l’aval des sociétés médicales (Association pour la microbiologie médicale et l’infectiologie Canada, Société canadienne d’allergie et d’immunologie clinique, Canadian Society of Otolaryngology—Head and Neck Surgery, Association canadienne des médecins d’urgence et Regroupement canadien des médecins de famille en santé respiratoire). Message principal Le diagnostic d’une RSC se fonde sur le type et la durée des symptômes et une constatation objective d’une inflammation de la muqueuse nasale ou des sinus paranasaux. La rhinosinusite chronique est catégorisée en fonction de la présence ou de l’absence de polypes nasaux et cette distinction entraîne des différences dans le traitement. On traite la rhinosinusite chronique avec polypes nasaux au moyen de corticostéroïdes par voie intranasale. Des antibiotiques sont recommandés quand les symptômes indiquent une infection (douleur ou purulence). Pour une RSC sans polypes nasaux, on recommande des corticostéroïdes par voie intranasale et des antibiotiques de deuxième ligne (par ex. combinaisons amoxicilline–acide clavulanique ou fluoroquinolones à activité accrue contre Gram positif). Une irrigation avec une solution saline, des stéroïdes par voie orale et des tests d’allergies pourraient être appropriées. Si le patient ne répond pas au traitement, il faudrait envisager d

  3. Antimony in the Contaminated Site of El Triunfo, Baja California Sur, Mexico

    Directory of Open Access Journals (Sweden)

    Marmolejo-Rodríguez A. J.

    2013-04-01

    Full Text Available Antimony has properties similar to arsenic with some of its compounds toxic to humans. Therefore it is necessary to control the wastes accumulated by anthropogenic activities, such as mining, where it is in tailings to be released to the environment. According to the Environment Protection Agency, the maximum value in sediments is 11.2 mg Sb kg–1 and the Earth’s crust average is 0.2 mg Sb kg–1. In this semiarid area, the drainage basin El Carrizal is impacted with wastes of an abandoned gold mine at the Mining District El Triunfo (MD – ET which have tailings with 17,600 mg kg–1 of antimony. In the main dry river (arroyo, the Sb content is between 0.6 and 122 mg kg–1. This element is transported from the source throughout the fluvial basin to discharge into the Pacific Ocean. In the arroyo mouth we collected one sedimentary core and the sediment from dunes (28.6 – 45.7 and 6.43 – 7.74 mg Sb kg–1. This research concluded the antimony is enriched in this semiarid system, with Normalized Enrichment Factors severely enriched mainly in arroyo sediments close to the MD-ET

  4. Sedimentary gravity flows from subaerial fan-deltas in Loreto Bay, Baja California Sur, Mexico

    Science.gov (United States)

    Navarro-Lozano, José O.; Nava-Sánchez, Enrique H.; Godínez-Orta, Lucio

    2010-05-01

    Fan-deltas from Loreto Bay show recent evidences of sedimentary gravity flows as a result from catastrophic events during hurricane rainfalls. The knowledge of hydrological characteristics of these flows is important for understanding the effects of storms on fan-deltas geomorphology in this region, as well as for the urban developing planning of the city of Loreto in order to avoid hazardous zones. The analysis of precipitation and hurricane tracks data for the period 1945 to 2009 indicates that hurricanes have caused catastrophic floods every 20 years. Stratigraphy from the channel incision shows a sequence of stream flow and debris flow controlled by changes in the competence and capacity of the stream, which are associated to the gentle slope (<2 °) of the fan-deltas. However fans from the north of the bay (Arce and Gúa) show deposits of debris flows associated to catastrophic floods, which have caused the incision channel to drift towards the southern part of the fans, while flows from Las Parras fan-delta, from the middle of the bay, are dominated by stream flows. These differences in the type of the flows are controlled by lithology, shape and size of the drainage basin, and slope of the transit zone in the feeder channel.

  5. California's minimum-nurse-staffing legislation and nurses' wages.

    Science.gov (United States)

    Mark, Barbara; Harless, David W; Spetz, Joanne

    2009-01-01

    In 2004, California became the first state to implement minimum-nurse-staffing ratios in acute care hospitals. We examined the wages of registered nurses (RNs) before and after the legislation was enacted. Using four data sets-the National Sample Survey of Registered Nurses, the Current Population Survey, the National Compensation Survey, and the Occupational Employment Statistics Survey-we found that from 2000 through 2006, RNs in California metropolitan areas experienced real wage growth as much as twelve percentage points higher than the growth in the wages of nurses employed in metropolitan areas outside of California.

  6. Descriptions énonciative, informationnelle et argumentative : aspects discursifs sur quelques cas de figure

    Directory of Open Access Journals (Sweden)

    Forsgren Mats

    2012-07-01

    Full Text Available Les recherches sur l’énonciation, en l’occurrence celles appartenant au courant Ducrot, à l’école dit de Genève comme à l’école dite scandinave (portant le sigle « Scapoline », pour n’en mentionner que quelques-unes, donnent depuis quelques décennies de remarquables résultats portant sur la dimension polyphonique et argumentative du langage, sur le jeu discursif des points de vue et des êtres discursifs, de la prise en charge énonciative et du statut assertif (assertion/présupposition/supposition, comme sur le fonctionnement des différents types de marqueurs dits « discursifs ». La contribution de Henning Nølke, donnée lors du CMLF organisé en 2008 à Paris, brosse brillamment l’historique et l’élaboration ultérieure de ce courant. Nul doute que les résultats de bon nombre de ces recherches appartiendront dorénavant aux acquis descriptifs de notre science, qu’il s’agisse du discours rapporté, de la négation, des marqueurs de par exemple la concession ou la causalité. Cependant, il me semble que cette théorisation énonciative, pour heuristiquement valable qu’elle soit – ce qui est indéniable– rencontre parfois des problèmes lorsqu’elle est confrontée avec d’autres dimensions de la description du sens discursif, et testée dans «... le patient travail de confrontation minutieuse des outils avec le réel (en l’occurrence les textes dont ils sont censés rendre compte » (Alain Rabatel, 2010 : 109. C’est pourquoi dans cette communication j’aimerais discuter, à partir d’une enquête portant sur la distribution des marqueurs causaux dans plusieurs genres discursifs, deux problèmes de l’approche énonciative : sa rencontre avec la structure dite informationnelle et la prise en charge énonciative dans un cas bien précis, notamment certaines structures appositives.

  7. Progress towards phosphorus-33 production: studies on the enrichment of sulphur-33 by means of anion exchangers; Mise au point d'une methode de production du phosphore-33: etudes sur l'enrichissement du soufre-33 au moyen d'echangeurs anioniques; Uspekhi v poluchenii fosfora-33: izuchenie obogashcheniya sery-33 pri pomoshchi anionnykh obmennikov; Progresos on la produccion de fosforo-33: estudios realizados sobre el enriquecimiento del azufre-33 por medio de intercambiadores anionicos

    Energy Technology Data Exchange (ETDEWEB)

    Forberg, S; Westermark, T [Division of Physical Chemistry, Kungl. Tekniska Hogskolan, Stockholm 70 (Sweden)

    1962-01-15

    Enrichment of S{sup 33} by chemical exchange between HSO{sub 3}{sup -} and H{sub 2}SO{sub 3} was selected as the most promising means for P{sup 33} production. HCl displacement of HSO{sub 3}{sup -} from anion exchangers was found to be a convenient method for obtaining counter-current and bulk reflux conditions for this system. Some inherent drawbacks concerning the very high reflux requirements are pointed out. In this institute a plant has been constructed for this process, and the obtained parameters, operation experiences and results are presented. Due to a 'tail' formation of H{sub 2}SO{sub 3} in the displacing HCl, a considerably smaller enrichment than had been calculated from laboratory runs was obtained. Investigations on this problem have been carried out, and a possible way out seems to be the introduction of organic solvents instead of aqueous solutions. (author) [French] L'enrichissement du {sup 33}S par echange chimique entre HSO{sub 3}{sup -} et H{sub 2}SO{sub 3} a ete choisi comme etant le moyen le plus interessant de produire du {sup 33}P. On a constate que l'elution par le HCl du HSO{sub 3}{sup -} fixe par les echangeurs anioniques constituait une methode tres pratique pour realiser les contre-courants et reflux necessaires a cet enrichissement. Les auteurs indiquent quelques inconvenients inherents a la necessite d'obtenir des reflux tres intenses. Une installation speciale a ete construite a l'institut pour realiser ce processus; les auteurs indiquent les parametres observes, les experiences effectuees et les resultats obtenus. Par suite d'une formation de H{sub 2}SO{sub 3} residuairo dans l'eluant HCl, l'enrichissement obtenu etait beaucoup plus faible qu'on ne l'avait calcule d'apres les essais en laboratoire. Les auteurs ont fait des recherches sur ce probleme; il semble possible de remedier a la difficulte en remplacant les solutions aqueuses par des solvants organiques. (author) [Spanish] Los autores han optado por el enriquecimiento del

  8. Réflexions sur la science contemporaine

    CERN Document Server

    Darriulat, Pierre

    2007-01-01

    L'auteur y brosse à grands traits un tableau de la science contemporaine : réductionnisme, déterminisme, abstraction, méthodes, mécanismes de validation et interactions entre observation et théorie... ainsi qu'un portrait de ses artisans et une critique des stéréotypes les plus courants (philistin, iconoclaste, apprenti sorcier...) L'accent est mis sur le fait que la science, dont une des missions consiste à dénoncer les illusions du sens commun, ne poursuit pas une quête de vérité absolue mais se contente aujourd'hui d'une vérité simplement meilleure que celle d'hier. La circularité de la science lui interdit de répondre à des questions essentielles comme «Pourquoi ce monde plutôt que rien ?» Pour tenter d'y répondre, le physicien Pierre Darriulat entreprend, avec candeur et bienveillance, un voyage chez les philosophes. Comment la métaphysique s'évade-t-elle du cercle ? Quelle connaissance autre que scientifique nous propose-t-elle ? La circularité condamnant la science au silence...

  9. Private Schools, California, 2009, California Department of Education

    Data.gov (United States)

    U.S. Environmental Protection Agency — California law (California Education Code Section 33190) requires private schools offering or conducting a full-time elementary or secondary level day school for...

  10. The California Hazards Institute

    Science.gov (United States)

    Rundle, J. B.; Kellogg, L. H.; Turcotte, D. L.

    2006-12-01

    California's abundant resources are linked with its natural hazards. Earthquakes, landslides, wildfires, floods, tsunamis, volcanic eruptions, severe storms, fires, and droughts afflict the state regularly. These events have the potential to become great disasters, like the San Francisco earthquake and fire of 1906, that overwhelm the capacity of society to respond. At such times, the fabric of civic life is frayed, political leadership is tested, economic losses can dwarf available resources, and full recovery can take decades. A patchwork of Federal, state and local programs are in place to address individual hazards, but California lacks effective coordination to forecast, prevent, prepare for, mitigate, respond to, and recover from, the harmful effects of natural disasters. Moreover, we do not know enough about the frequency, size, time, or locations where they may strike, nor about how the natural environment and man-made structures would respond. As California's population grows and becomes more interdependent, even moderate events have the potential to trigger catastrophes. Natural hazards need not become natural disasters if they are addressed proactively and effectively, rather than reactively. The University of California, with 10 campuses distributed across the state, has world-class faculty and students engaged in research and education in all fields of direct relevance to hazards. For that reason, the UC can become a world leader in anticipating and managing natural hazards in order to prevent loss of life and property and degradation of environmental quality. The University of California, Office of the President, has therefore established a new system-wide Multicampus Research Project, the California Hazards Institute (CHI), as a mechanism to research innovative, effective solutions for California. The CHI will build on the rich intellectual capital and expertise of the Golden State to provide the best available science, knowledge and tools for

  11. Lambeau Expanse du Cuir Chevelu dans la Couverture des Alopecies Cicatricielles sur Sequelles de Brulures. A Propos d'une Observation

    Science.gov (United States)

    El Mazouz, S.; Hafidi, J.; Fejjal, N.; Mejjati, H.; Cherkab, L.; Gharib, N.; Abbassi, A.

    2010-01-01

    Summary Les séquelles esthétiques des alopécies cicatricielles sur séquelles de brûlures sont responsables de préjudices empêchant parfois la réinsertion sociale du patient, surtout chez les sujets de sexe féminin. Le cuir chevelu permet la réalisation de lambeaux permettant de couvrir ces alopécies. Les Auteurs décrivent le cas d'une jeune patiente victime d'une alopécie cicatricielle sur séquelles de brûlures chez qui ils ont réalisé un lambeau expansé du cuir chevelu et mettent le point sur la prise en charge de ces lésions à travers ce cas clinique et une revue de littérature. PMID:21991195

  12. Demographic trajectories of Baja California and California, 1900-2000. Contrasts and parallelisms

    Directory of Open Access Journals (Sweden)

    David Piñera Ramírez

    2012-07-01

    Full Text Available The purpose is to analyze migration processes that have occurred in two neighboring states, pointing out the characteristics acquired in each of them, especially regarding their origin and type of labor relations they have produced. Therefore, the migration as the thematic axis and following the guidelines of comparative history, it is shown that both in California and in Baja California, migration flows have played a fundamental role. The comparative appro­ach also leads to the search for similarities and differences represented in different moments, such as the impact of "Prohibition", the Great Depression and two World Wars, or specific phenomena as the arrival of the railroad. But above all, the common thread is migration with its two key issues mentioned above, the origin of migration flows and labor relations that they have generated in the two Californias.

  13. The Story of California = La Historia de California.

    Science.gov (United States)

    Bartel, Nick

    "The Story of California" is a history and geography of the state of California, intended for classroom use by limited-English-proficient, native Spanish-speaking students in California's urban middle schools. The book is designed with the left page in English and the right page in Spanish to facilitate student transition into…

  14. LLWPA: Implementation in California

    International Nuclear Information System (INIS)

    Gaynor, R.K.; Romano, S.A.

    1987-01-01

    US Ecology has been designated by the State of California to locate, develop and operate a low-level radioactive waste disposal facility. In early 1986, the firm identified eighteen desert basins in southeastern California for siting considerations. Three candidate sites were selected for detailed field characterization work in February, 1987. A preferred site for licensing purposes will be identified in late 1987. California is currently ahead of the siting milestone schedule mandated by the Low-Level Radioactive Waste Policy Amendments Act. It is likely that a license application will be filed in mid-1988, well before the 1990 milestone date. It is anticipated that the site will be constructed around that milestone date. This paper describes the process undertaken by US Ecology to identify three candidate sites for characterization, and the public involvement program supporting this decision. Future activities leading to a final site development are also described

  15. Transit performance measures in California.

    Science.gov (United States)

    2016-04-01

    This research is the result of a California Department of Transportation (Caltrans) request to assess the most commonly : available transit performance measures in California. Caltrans wanted to understand performance measures and data used by : Metr...

  16. Solar: California, not dreaming

    Energy Technology Data Exchange (ETDEWEB)

    Jones, J.

    2006-03-15

    The California Solar Initiative (CSI) was approved by the California Public Utilities Commission (PUC) in January 2006. The CSI is the largest solar programme of this kind ever in the USA and provides for $3.2 billion in incentives for solar projects between 2007 and 2017. The PUC will oversee a $2.5 billion programme to provide funding for solar installations on commercial and existing residential buildings, while the California Energy Commission (CEC) will manage a separate $350 million fund targeted at new residential building. Existing solar programmes operated by the PUC and CEC will be consolidated into the CSI. The CEC programme will use already allocated funding, but the PUC programme will be funded through revenues collected from customers of the main gas and electric utilities in California. Funds will be distributed via rebates to householders or companies that install solar. As well as solar photovoltaics (PV), rebates will also go to solar thermal power (concentrating solar power) and solar heating and cooling. CSI funding can be used in combination with existing federal tax credits. The aim is a gradual increase from installation of 40 MW of PV in 2005 to 100 MW by 2009. The CSI is also expected to create favourable market conditions for PV manufacturers in California and to encourage investment in production of solar-grade silicon in or near California. Objections from the International Brotherhood of Electrical Workers (IBEW) appear to have been overcome but a number of other potential snags remain. CSI is expected to be replicated in other US states.

  17. Evaluating Options for Improving California's Drought Resilience

    Science.gov (United States)

    Ray, P. A.; Schwarz, A.; Wi, S.; Correa, M.; Brown, C.

    2015-12-01

    Through a unique collaborative arrangement, the University of Massachusetts (UMass) and the California Department of Water Resources (DWR) have together performed a baseline climate change analysis of the California state (State Water Project) and federal (Central Valley Project) water systems. The first step in the baseline analysis was development of an improved basinwide hydrologic model covering a large area of California including all major tributaries to the state and federal water systems. The CalLite modeling system used by DWR for planning purposes allowed simulation of the system of reservoirs, rivers, control points, and deliveries which are then used to create performance metrics that quantify a wide range of system characteristics including water deliveries, water quality, and environmental/ecological factors. A baseline climate stress test was conducted to identify current vulnerabilities to climate change through the linking of the modeling chain with Decision Scaling concepts through the UMass bottom-up climate stress-testing algorithm. This procedure allowed the first comprehensive climate stress analysis of the California state and federal water systems not constrained by observed historical variability and wet-dry year sequences. A forward-looking drought vulnerability and adaptation assessment of the water systems based on this workflow is ongoing and preliminary results will be presented. Presentation of results will include discussion of the collaborative arrangement between DWR and UMass, which is instrumental to both the success of the research and the education of policy makers.

  18. Kir6.2 activation by sulfonylurea receptors: a different mechanism of action for SUR1 and SUR2A subunits via the same residues

    Science.gov (United States)

    Principalli, Maria A; Dupuis, Julien P; Moreau, Christophe J; Vivaudou, Michel; Revilloud, Jean

    2015-01-01

    ATP-sensitive potassium channels (K-ATP channels) play a key role in adjusting the membrane potential to the metabolic state of cells. They result from the unique combination of two proteins: the sulfonylurea receptor (SUR), an ATP-binding cassette (ABC) protein, and the inward rectifier K+ channel Kir6.2. Both subunits associate to form a heterooctamer (4 SUR/4 Kir6.2). SUR modulates channel gating in response to the binding of nucleotides or drugs and Kir6.2 conducts potassium ions. The activity of K-ATP channels varies with their localization. In pancreatic β-cells, SUR1/Kir6.2 channels are partly active at rest while in cardiomyocytes SUR2A/Kir6.2 channels are mostly closed. This divergence of function could be related to differences in the interaction of SUR1 and SUR2A with Kir6.2. Three residues (E1305, I1310, L1313) located in the linker region between transmembrane domain 2 and nucleotide-binding domain 2 of SUR2A were previously found to be involved in the activation pathway linking binding of openers onto SUR2A and channel opening. To determine the role of the equivalent residues in the SUR1 isoform, we designed chimeras between SUR1 and the ABC transporter multidrug resistance-associated protein 1 (MRP1), and used patch clamp recordings on Xenopus oocytes to assess the functionality of SUR1/MRP1 chimeric K-ATP channels. Our results reveal that the same residues in SUR1 and SUR2A are involved in the functional association with Kir6.2, but they display unexpected side-chain specificities which could account for the contrasted properties of pancreatic and cardiac K-ATP channels. PMID:26416970

  19. Impact de la preparation des anodes crues et des conditions de cuisson sur la fissuration dans des anodes denses

    Science.gov (United States)

    Amrani, Salah

    La fabrication de l'aluminium est realisee dans une cellule d'electrolyse, et cette operation utilise des anodes en carbone. L'evaluation de la qualite de ces anodes reste indispensable avant leur utilisation. La presence des fissures dans les anodes provoque une perturbation du procede l'electrolyse et une diminution de sa performance. Ce projet a ete entrepris pour determiner l'impact des differents parametres de procedes de fabrication des anodes sur la fissuration des anodes denses. Ces parametres incluent ceux de la fabrication des anodes crues, des proprietes des matieres premieres et de la cuisson. Une recherche bibliographique a ete effectuee sur tous les aspects de la fissuration des anodes en carbone pour compiler les travaux anterieurs. Une methodologie detaillee a ete mise au point pour faciliter le deroulement des travaux et atteindre les objectifs vises. La majorite de ce document est reservee pour la discussion des resultats obtenus au laboratoire de l'UQAC et au niveau industriel. Concernant les etudes realisees a l'UQAC, une partie des travaux experimentaux est reservee a la recherche des differents mecanismes de fissuration dans les anodes denses utilisees dans l'industrie d'aluminium. L'approche etait d'abord basee sur la caracterisation qualitative du mecanisme de la fissuration en surface et en profondeur. Puis, une caracterisation quantitative a ete realisee pour la determination de la distribution de la largeur de la fissure sur toute sa longueur, ainsi que le pourcentage de sa surface par rapport a la surface totale de l'echantillon. Cette etude a ete realisee par le biais de la technique d'analyse d'image utilisee pour caracteriser la fissuration d'un echantillon d'anode cuite. L'analyse surfacique et en profondeur de cet echantillon a permis de voir clairement la formation des fissures sur une grande partie de la surface analysee. L'autre partie des travaux est basee sur la caracterisation des defauts dans des echantillons d'anodes crues

  20. The situation of hybrid vehicles in Japan; Le point sur les vehicules hybrides au Japon

    Energy Technology Data Exchange (ETDEWEB)

    Perran, Th.

    2000-01-01

    Among the different competitors of the race on hybrid vehicles development, Honda was the fastest with its Insight model presented in November 1, 1999. This mass production hybrid vehicle can reach performances of 35 km/l. This new record could be obtained thanks to the development of more efficient weak mixture internal combustion engines and to the lightening of vehicles thanks to the massive use of aluminium. Today, each Japanese car manufacturer has his own hybrid vehicle prototype and one can expect a wave of performing hybrid vehicles on the automotive market in 2001. Toyota remains at the top with its second model, the future 6 places HV-M4 model which will be the very first four wheel drive mono-space hybrid vehicle. (J.S.)

  1. The statement on regulatory evolutions; Le point sur les evolutions reglementaires

    Energy Technology Data Exchange (ETDEWEB)

    Lucas, L. [Institut International du Froid, 75 - Paris (France)

    1996-12-31

    Compression-type thermal systems, refrigerating equipments and other variants used as heat pumps have now to face the new regulations linked with the protection of the stratospheric ozone layer. The Montreal protocol (1987) and its subsequent revisions (London (1990), Copenhagen (1992) and Vienna (1995)) has been sometimes hardened at the regional (European Community) or national scale (Germany, taxes in the USA). The fear of global warming meets the older worry of energy savings in order to provide a new set of regulations and rules. Refrigerating fluids (ammonia, hydrocarbons) and substitution systems (sorption systems) must be conformable to various type of rules, standards and codes which change in their nature, philosophy and application from one country to the other. (J.S.)

  2. Points de vue sociologiques sur les littératures afro-antillaises (1920-1960

    Directory of Open Access Journals (Sweden)

    Clément Dessy

    2010-06-01

    Full Text Available Les études en littératures francophones d’Afrique et des Caraïbes ont vu se développer au cours de la décennie précédente des tentatives d’explication sociologique du fait littéraire dans leur domaine. Les deux livres de Buata B. Malela, dont nous tenterons de rendre compte dans cette note, s’inscrivent pleinement dans cette tendance.Le premier ouvrage, issu d’une thèse de doctorat, se fixe un ambitieux programme ainsi qu’on peut en juger à son titre : Les écrivains afro-antillais à Paris (19...

  3. Le point sur les indices du bien-être national | CRDI - Centre de ...

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

    21 janv. 2011 ... Les indices économiques sont des outils statistiques qui résument des ... En quelques mots, le PIB correspond à la valeur totale des biens et ... copieux menu d'instruments de mesure allant du réjouissant Happy Planet Index, ...

  4. Le point sur le sida, l'alimentation et la nutrition | IDRC - International ...

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

    14 oct. 2010 ... Selon le Programme alimentaire mondial (PAM), 22 des 30 pays à risque élevé ayant besoin d'une aide alimentaire extérieure se trouvent en Afrique subsaharienne, où de nombreux États sont aux prises avec une grave épidémie de sida. Étant donné que le VIH touche les travailleurs dans la force de ...

  5. North Pacific Acoustic Laboratory CTD Data: R/V Moana Wave Cruise IW98 (August 15-30, 1998) and R/V Melville Cruise IW99 (June 18-July 3, 1999)

    National Research Council Canada - National Science Library

    Dickinson, S; Howe, B. M; Colosi, J. A

    2007-01-01

    ...) instruments dropped off the side of the ships as they steamed between the NPAL Acoustic Thermometry of Ocean Climate source off Kauai and a billboard receiving array on Sur Ridge off Point Sur, California...

  6. Higher Education in California

    Science.gov (United States)

    Public Policy Institute of California, 2016

    2016-01-01

    Higher education enhances Californians' lives and contributes to the state's economic growth. But population and education trends suggest that California is facing a large shortfall of college graduates. Addressing this short­fall will require strong gains for groups that have been historically under­represented in higher education. Substantial…

  7. California Budget Simulation

    Science.gov (United States)

    Mallinson, Daniel J.

    2018-01-01

    The California Budget Challenge produced by Next10 provides a useful and intuitive tool for instructors to introduce students to public budgeting. Students will reason through a series of budgeting decisions using information provided on the fiscal and practical implications of their choices. The Challenge is updated with each budget cycle, so it…

  8. Oak management in California

    Science.gov (United States)

    Plumb. Timothy R.; Philip M. McDonald

    1981-01-01

    Native oak species grow on 15 to 20 million acres (6 to 8 million ha) of California land, and have an estimated net volume of about 3 billion ft3 (85 million m3). This resource, valuable not only for traditional wood products, but also for wildlife habitat, watershed protection, and recreational-esthetic values, is not...

  9. California's Perfect Storm

    Science.gov (United States)

    Bacon, David

    2010-01-01

    The United States today faces an economic crisis worse than any since the Great Depression of the 1930s. Nowhere is it sharper than in the nation's schools. Last year, California saw a perfect storm of protest in virtually every part of its education system. K-12 teachers built coalitions with parents and students to fight for their jobs and their…

  10. FELLOWS ADDRESS California Dreaming

    NARCIS (Netherlands)

    Kooten, van Kees

    2017-01-01

    California was the first jurisdiction to mandate a reduction in greenhouse gas (GHG) emissions by 80% below 1990 levels by 2050. This target was subsequently endorsed by the G8 in 2009 and the European Commission in 2014, and is the guiding principle of the 2015 Paris Agreement. To achieve these

  11. NREL + Southern California Gas

    Energy Technology Data Exchange (ETDEWEB)

    Berdahl, Sonja E [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

    2017-10-09

    NREL and Southern California Gas Company are evaluating a new 'power-to-gas' approach - one that produces methane through a biological pathway and uses the expansive natural gas infrastructure to store it. This approach has the potential to change how the power industry approaches renewable generation and energy storage.

  12. California's Future: Higher Education

    Science.gov (United States)

    Johnson, Hans

    2015-01-01

    California's higher education system is not keeping up with the changing economy. Projections suggest that the state's economy will continue to need more highly educated workers. In 2025, if current trends persist, 41 percent of jobs will require at least a bachelor's degree and 36 percent will require some college education short of a bachelor's…

  13. Development of a California commercial building benchmarking database

    International Nuclear Information System (INIS)

    Kinney, Satkartar; Piette, Mary Ann

    2002-01-01

    Building energy benchmarking is a useful starting point for commercial building owners and operators to target energy savings opportunities. There are a number of tools and methods for benchmarking energy use. Benchmarking based on regional data can provides more relevant information for California buildings than national tools such as Energy Star. This paper discusses issues related to benchmarking commercial building energy use and the development of Cal-Arch, a building energy benchmarking database for California. Currently Cal-Arch uses existing survey data from California's Commercial End Use Survey (CEUS), a largely underutilized wealth of information collected by California's major utilities. Doe's Commercial Building Energy Consumption Survey (CBECS) is used by a similar tool, Arch, and by a number of other benchmarking tools. Future versions of Arch/Cal-Arch will utilize additional data sources including modeled data and individual buildings to expand the database

  14. Development of a California commercial building benchmarking database

    Energy Technology Data Exchange (ETDEWEB)

    Kinney, Satkartar; Piette, Mary Ann

    2002-05-17

    Building energy benchmarking is a useful starting point for commercial building owners and operators to target energy savings opportunities. There are a number of tools and methods for benchmarking energy use. Benchmarking based on regional data can provides more relevant information for California buildings than national tools such as Energy Star. This paper discusses issues related to benchmarking commercial building energy use and the development of Cal-Arch, a building energy benchmarking database for California. Currently Cal-Arch uses existing survey data from California's Commercial End Use Survey (CEUS), a largely underutilized wealth of information collected by California's major utilities. Doe's Commercial Building Energy Consumption Survey (CBECS) is used by a similar tool, Arch, and by a number of other benchmarking tools. Future versions of Arch/Cal-Arch will utilize additional data sources including modeled data and individual buildings to expand the database.

  15. Note concerning the Ecasac programme; Note sur le programme ecasac

    Energy Technology Data Exchange (ETDEWEB)

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

    1969-07-01

    The analytical programme developed by the firm I.B.M. for ECAP electronic circuits, operated initially on the IBM 1620 computer with a certain limitation on the size of the network studied, but already equipped from the conversational angle (type-writer). The IBM 360 computers made it possible to increase the size of the network treated to 50 nodes and 200 branches, but the conversational aspect was suppressed in the ECAP 360 version. With a view to making use of the possibilities of hybrid computers, we have adapted this latter version to the EAI 8400 computer. Without diminishing it in any way, we have modified it so as to provide it with conversational characteristics by using the computers control panel; to give it still further flexibility we have made it possible to record curves during the calculation operation, and to obtain a division of the printed results. To obtain the curves, use was made of analog digital converters of the interface of the hybrid unit EAI 8900 of which the EAI 8400 computer represents the numerical section. The modifications made concern in particular the A.C. analysis and the transient analysis. They facilitate and complete the input of the data; they allow modifications to be made for the calculation of these analyses; they also improve the presentation of the results and facilitate their interpretation. They constitute finally the version ECASAC, i.e. the programme ECAP 360 made conversational by use of a type-writer, with automatic output of the curves. (author) [French] Le programme d'analyse de circuits electroniques ECAP, mis au point par la firme I.B.M., a d'abord fonctionne sur ordinateur IBM 1620 avec une certaine limitation pour la taille du reseau etudie, mais deja une optique conversationnelle (machine a ecrire). Les ordinateurs IBM 360 ont permis d'accroitre la taille du reseau permis a 50 noeuds et 200 branches, mais par contre l'optique conversationnelle fut supprimee dans la version ECAP 360. Dans le but d

  16. Sur: uma minoria cosmopolita na periferia ocidental Sur: a cosmopolitan minority on the western periphery

    Directory of Open Access Journals (Sweden)

    Maria Teresa Gramuglio

    2007-06-01

    Full Text Available Este artigo explora as condições e as disposições que tornaram possível o surgimento da revista Sur e a formação do grupo cultural de mesmo nome. Propõe critérios para uma periodização que leve em conta, junto com os indícios materiais, as circunstâncias históricas e culturais cambiantes pelas quais a publicação passou durante sua longa vida (1931-1991. Assinala alguns dos principias temas ideológicos e estéticos que foram abordados em suas páginas. Caracteriza o projeto inicial e as transformações imprimidas pela vontade de sua diretora, Victoria Ocampo, e as mudanças nas relações e problemáticas do campo intelectual.This article explores the conditions and dispositions that enabled the emergence of the magazine Sur and the formation of the cultural group of the same name. It sets out the criteria for a periodization that takes into account, along with material factors, the shifting historical and cultural circumstances experienced by the publication over its 60-year life-span (1931-1991. The text highlights some of the main ideological and aesthetic themes to have filled the magazine's pages. It describes the original project and the transformations introduced by its chief editor, Victoria Ocampo, as well as the changes in the relations and problematics of the intellectual field.

  17. Más allá de los mitos: análisis de la Cooperación Sur-Sur y Norte-Sur en el Ecuador. Sector Educación, período 2003- 2008

    OpenAIRE

    Escobar Sánchez, Wladimir Alexander

    2012-01-01

    La presente tesis de maestría analiza a la cooperación Norte-Sur y Sur-Sur como los dos principales modelos de funcionamiento de la cooperación hoy en día, a través de dos programas de ayuda internacional en el sector educación, en el período 2003-2008. El uno referente a la cooperación Norte-Sur, y el otro a la cooperación Sur-Sur. El propósito que presenta este trabajo académico es explicar a la cooperación internacional al desarrollo tomando en consideración a la teoría real...

  18. Hausse des taxes sur le tabac et politiques de lutte antitabac au ...

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

    Par ailleurs, les études existantes sur les effets des taxes sur le tabac sont fondées sur l'" élasticité de la demande en fonction du prix ", une mesure qui indique l'évolution de la demande globale de cigarettes en réaction à une modification des prix, mais qui ne tient pas compte des effets d'une augmentation des taxes sur ...

  19. Rapport annuel au Parlement Loi sur la protection des ...

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

    Larocque, Samia

    1 juil. 1983 ... TBS/SCT 350-63 (Rév. 2011/03). 31/03/2014. 01/04/2013. Période visée par le rapport : Reçues pendant la période visée par le rapport. Total. En suspens à la fin de la période de rapport précédente. Rapport statistique sur la Loi sur la protection des renseignements personnels. Nom de l'institution :.

  20. Commission des Nations Unies sur les produits indispensables aux ...

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

    Étude des soins de santé primaires dispensés dans les pays du cône Sud. Les pays membres du Réseau de recherche sur les systèmes et services de santé dans les pays du cône Sud (Red de Investigación en Sistemas y Servicios de Salud en el Cono Sur) ont des systèmes de... Voir davantageÉtude des soins de santé ...

  1. Environmental Sensitivity Index (ESI) Atlas: Central California (Including Monterey Bay Sanctuary), maps and geographic information systems data (NODC Accession 0013176)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Environmental Sensitivity Index (ESI) maps have been developed for the coastal areas of Central California from Point Conception to Point Reyes National Seashore....

  2. Unrealized Promises: Unequal Access, Affordability, and Excellence at Community Colleges in Southern California

    Science.gov (United States)

    Martinez-Wenzl, Mary; Marquez, Rigoberto

    2012-01-01

    California community colleges are, by design, the only entry point to four-year institutions for the majority of students in the state. Yet, many of these institutions perpetuate racial and class segregation, thus disrupting the California Master Plan for Higher Education's promise of access, equity, and excellence in higher education. This report…

  3. Droits, justice et réseaux sociaux sur Internet (Amérique latine ...

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

    ... sur la question de la protection des renseignements personnels sur Internet, ... Derechos y justicia y el movimiento social en internet (5 de agosto de 2009 ... Programme de recherche sur le virus Zika Canada-Amérique latine et Caraïbes.

  4. Hausse des taxes sur le tabac dans trois pays d'Amérique centrale ...

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

    Les chercheurs mèneront des études sur la demande de produits du tabac dans le ... sur les techniques modernes de contrôle de la chaîne d'approvisionnement, ... IWRA/CRDI sur les changements climatiques et la gestion adaptive de l'eau.

  5. Les mesures de gel et de confiscation en vertu de la Loi sur les embargos

    OpenAIRE

    Schnyder, Nicolas

    2009-01-01

    Etude du mécanisme d'adoption des mesures de gel et de confiscation en vertu de la Loi sur les embargos et leurs conséquences tant sur la personne principalement touchée par ces mesures que sur les tiers.

  6. Données préliminaires sur le paludisme humain en zones rurale et ...

    African Journals Online (AJOL)

    SARAH

    31 juil. 2017 ... axée sur le diagnostic précoce et la prise en charge rapide des ... recherche investigue sur les connaissances, attitudes et ... paludisme et (vi) sur la source de traitement du paludisme. ... technique ELISA (Burkot et al., 1984).

  7. Effet de la composition de différents substrats culturaux sur ...

    African Journals Online (AJOL)

    SARAH

    31 janv. 2014 ... Effet de la substrats culturaux sur paramètres de croissance ... des graines, mais ce substrat a donné des performances acceptables sur la croissance longitudinale des ..... élevés en conteneurs sur différents types de.

  8. Intraguild predation by shore crabs affects mortality, behavior, growth, and densities of California horn snails

    Science.gov (United States)

    Lorda, J.; Hechinger, R.F.; Cooper, S. D.; Kuris, A. M.; Lafferty, Kevin D.

    2016-01-01

    The California horn snail, Cerithideopsis californica, and the shore crabs, Pachygrapsus crassipesand Hemigrapsus oregonensis, compete for epibenthic microalgae, but the crabs also eat snails. Such intraguild predation is common in nature, despite models predicting instability. Using a series of manipulations and field surveys, we examined intraguild predation from several angles, including the effects of stage-dependent predation along with direct consumptive and nonconsumptive predator effects on intraguild prey. In the laboratory, we found that crabs fed on macroalgae, snail eggs, and snails, and the size of consumed snails increased with predator crab size. In field experiments, snails grew less in the presence of crabs partially because snails behaved differently and were buried in the sediment (nonconsumptive effects). Consistent with these results, crab and snail abundances were negatively correlated in three field surveys conducted at three different spatial scales in estuaries of California, Baja California, and Baja California Sur: (1) among 61 sites spanning multiple habitat types in three estuaries, (2) among the habitats of 13 estuaries, and (3) among 34 tidal creek sites in one estuary. These results indicate that shore crabs are intraguild predators on California horn snails that affect snail populations via predation and by influencing snail behavior and performance.

  9. Sur terre comme sur mer: organisations spatiales en mer du Nord et mer de Norvège

    Directory of Open Access Journals (Sweden)

    Maryvonne LE BERRE

    1998-09-01

    Full Text Available L'article montre, au moyen de représentations cartographiques et graphiques, les structures spatiales développées en mer pour l'exploitation des hydrocarbures. Malgré les différences de milieu, l'appropriation et l'occupation territoriales du domaine maritime s'effectuent selon les mêmes principes que sur le continent, à ceci près que ce qui s'étale en surface sur le continent se développe à la verticale en mer.

  10. Mise au point

    African Journals Online (AJOL)

    7 mai 2012 ... butyl-cyanoacrylate en ponction directe intra-lésionnelle. (10,17), ou en double approche (endo-vasculaire et trans- osseuse) (18,19, 20,21). La plupart des auteurs s'accordent sur le fait que l'alcool ne doit pas être utilisé dans les MAv des maxillaires (6,. 22, 23,24). en effet, injecté en intra-artériel, il donne ...

  11. California State Waters Map Series--Offshore of Ventura, California

    Science.gov (United States)

    Johnson, Samuel Y.; Dartnell, Peter; Cochrane, Guy R.; Golden, Nadine E.; Phillips, Eleyne L.; Ritchie, Andrew C.; Kvitek, Rikk G.; Greene, H. Gary; Krigsman, Lisa M.; Endris, Charles A.; Seitz, Gordon G.; Gutierrez, Carlos I.; Sliter, Ray W.; Erdey, Mercedes D.; Wong, Florence L.; Yoklavich, Mary M.; Draut, Amy E.; Hart, Patrick E.; Johnson, Samuel Y.; Cochran, Susan A.

    2013-01-01

    In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of swath sonar data, acoustic backscatter, seafloor video, seafloor photography, high-resolution seismic-reflection profiles, and bottom-sediment sampling data. The map products display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow (to about 100 m) subsurface geology. The Offshore of Ventura map area lies within the Santa Barbara Channel region of the Southern California Bight. This geologically complex region forms a major biogeographic transition zone, separating the cold-temperate Oregonian province north of Point Conception from the warm-temperate California province to the south. The map area is in the Ventura Basin, in the southern part of the Western Transverse Ranges geologic province, which is north of the California Continental Borderland. Significant clockwise rotation—at least 90°—since the early Miocene has been proposed for the Western Transverse Ranges, and the region is presently undergoing north-south shortening. The city of Ventura is the major cultural center in the map area. The Ventura River cuts through Ventura, draining the Santa Ynez Mountains and the coastal hills north of Ventura. Northwest of Ventura, the coastal zone is a narrow strip containing highway and railway transportation corridors and a few small residential clusters. Rincon Island, an island constructed for oil and gas production, lies offshore of Punta Gorda. Southeast of Ventura, the coastal zone consists of the mouth and broad, alluvial plains of the Santa Clara River

  12. 78 FR 77447 - California Wind Energy Association, First Solar, Inc. v. California Independent System Operator...

    Science.gov (United States)

    2013-12-23

    ... Energy Association, First Solar, Inc. v. California Independent System Operator Corporation, Southern...), California Wind Energy Association and First Solar, Inc. (collectively, Complainants) filed a formal complaint against the California Independent System Operator Corporation (CAISO) and Southern California...

  13. La cooperación Sur-Sur agrícola argentina con África Subsahariana: una historia que comienza

    OpenAIRE

    Morasso, Carla

    2015-01-01

    [es] En la última década Argentina ha sido un actor dinámico de la cooperación Sur-Sur. Sus acciones se han dirigido principalmente hacia América Latina, pero también se han promovido los vínculos con Asia y África. El artículo analiza particularmente la cooperación Sur-Sur entre Argentina y países de África Subsahariana en materia de desarrollo agrícola en el período 2003-2013, donde se destacan los roles del Fondo Argentino de Cooperación Sur-Sur y Triangula...

  14. Biomonitoring in California Firefighters

    Science.gov (United States)

    Israel, Leslie; McNeel, Sandra; Voss, Robert; Wang, Miaomiao; Gajek, Ryszard; Park, June-Soo; Harwani, Suhash; Barley, Frank; She, Jianwen; Das, Rupali

    2015-01-01

    Objective: To assess California firefighters' blood concentrations of selected chemicals and compare with a representative US population. Methods: We report laboratory methods and analytic results for cadmium, lead, mercury, and manganese in whole blood and 12 serum perfluorinated chemicals in a sample of 101 Southern California firefighters. Results: Firefighters' blood metal concentrations were all similar to or lower than the National Health and Nutrition Examination Survey (NHANES) values, except for six participants whose mercury concentrations (range: 9.79 to 13.42 μg/L) were close to or higher than the NHANES reporting threshold of 10 μg/L. Perfluorodecanoic acid concentrations were elevated compared with NHANES and other firefighter studies. Conclusions: Perfluorodecanoic acid concentrations were three times higher in this firefighter group than in NHANES adult males. Firefighters may have unidentified sources of occupational exposure to perfluorinated chemicals. PMID:25563545

  15. Radium issues at Hunters Point Annex

    International Nuclear Information System (INIS)

    Dean, S.M.

    1994-01-01

    Radium was a common source of illumination used in numerous instruments and gauges for military equipment prior to 1970. As a result of its many military applications radium 226 is now a principle radionuclide of concern at military base closures sites throughout the United States. This is an overview of the site characterization strategy employed and a potential site remediation technology being considered at a radium contaminated landfill at Hunters Point Annex, a former U.S. Navy shipyard in San Francisco, California

  16. SUGARLOAF ROADLESS AREA, CALIFORNIA.

    Science.gov (United States)

    Powell, Robert E.; Campbell, Harry W.

    1984-01-01

    On the basis of geologic, geochemical, and geophysical investigations and a survey of mines, quarries, and prospects the Sugarloaf Roadless Area, California, has little promise for the occurrence of metallic mineral or energy resources. Units of carbonate rock and graphitic schist have demonstrated resources of magnesian marble and graphite. Sand, gravel, and construction stone other than carbonate rock are present in the roadless area, but similar or better quality materials are abundant and more accessible outside the area.

  17. Conférence sur l'efficacité

    CERN Document Server

    Jullien, François

    2005-01-01

    Philosophe et sinologue, François Jullien présente ici une conférence qu'il a prononcée auprès de chefs d'entreprise et dans le milieu du management. D'un côté, la conception européenne de l'efficacité est liée à la modélisation comme à la finalité et revendique l'action jusqu'à l'héroïsme ; de l'autre, la pensée chinoise de l'efficience, indirecte et discrète, s'appuie sur le potentiel de situation et induit des " transformations silencieuses ", sans éclat ni même événement. Par-delà cet écart, il s'agira d'interroger la nature de l'effectivité ; ou comment l'intervention humaine réussit à se brancher sur la propension des choses et s'y laisse intégrer. Ce propos se garde donc de séparer tant soit peu l'art d'opérer sur des situations et l'exercice de la philosophie ; en résultent des effets de lecture portant sur l'histoire du XXe siècle ainsi que la géopolitique - et géoéthique - à venir.

  18. Connaissances et attitudes des manipulateurs radio du Togo sur l ...

    African Journals Online (AJOL)

    Objectif : Evaluer les connaissances et les attitudes des manipulateurs togolais sur l'irradiation médicale des grossesses. Matériels et Méthode : Etude transversale menée en Avril 2011 chez 72 manipulateurs de radiologie des structures sanitaires publiques et privées du Togo. Résultats : Le quart des manipulateurs ...

  19. Sur?Surva - the Forgotten God [In Bulgarian

    Directory of Open Access Journals (Sweden)

    G. Simeonova

    2014-12-01

    Full Text Available Тhis paper deals with the neglected god – Sur/Surva. The author considers in full detail this problem, finding an evidence for the statements proposed by a new perusal of Stefan Verkovich’s Veda Slovena.

  20. Suivi sur le programme de mentorat de journalistes scientifiques des ...

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

    12 oct. 2010 ... Godefroy Chabi, un jeune journaliste scientifique, se présente à l'accueil d'un ... Il doit rédiger un article sur l'éducation et les droits de l'homme. ... et de Agence suédoise de coopération internationale au développement.

  1. La croissance demographique et son impact sur le developpement ...

    African Journals Online (AJOL)

    La croissance demographique et son impact sur le developpement des grandes villes au ... La ville de Porto-Novo au Bénin n'est pas en marge de cette réalité que ... and the need for improving its framework of life through its development.

  2. Soutien institutionnel à des organismes de recherche sur les ...

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

    Asie du Sud (le Bangladesh, l'Inde, le Népal, le Pakistan et le Sri Lanka). Parmi les 16 demandeurs d'Asie du Sud retenus, neuf viennent de l'Inde. La recherche sur les politiques en Asie du Sud s'effectue principalement en Inde, forte d'une ...

  3. Professorat de recherche sur les droits de la personne reconnus ...

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

    Pour ce projet, le CRDI s'associe à la Norman Paterson School of International Affairs (NPSIA) pour réaliser un programme de recherche portant sur les droits de la personne reconnus internationalement. La subvention servira à payer pendant deux ans la moitié du salaire et des avantages sociaux du professeur agrégé ...

  4. International Development Research Centre Act Loi sur le Centre de ...

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

    1 juin 2009 ... research includes any scientific or technical inquiry or experimentation that is .... data centres and facilities for research and other activ- ities;. (b) initiate and ..... Loi sur la pension de la fonction publique ne s'applique pas aux ...

  5. L'IMPACT DES DEPENSES D'INFRASTRUCTURES SUR LA ...

    African Journals Online (AJOL)

    Administrateur

    l'économétrie, dans l'analyse de l'impact des dépenses d'infras- tructures sur la .... montre que les politiques budgétaires de relance peuvent avoir un impact à long terme ...... Sciences Economiques et Sciences de Gestion Université d'Alger.

  6. Renforcement de la recherche sur les politiques et du plaidoyer ...

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

    Nouveau webinaire IWRA/CRDI sur les changements climatiques et la gestion adaptive de l'eau. L'Association internationale de ressources en eau (IWRA), en étroite collaboration avec le CRDI, organise un webinaire intitulé "Changements climatiques et gestion adaptive de l'eau: des... Voir davantageNouveau webinaire ...

  7. Influence du chlorpyriphos-ethyl sur quelques paramtres de ...

    African Journals Online (AJOL)

    admin

    testicules, les caractéristiques des spermatozoïdes épididymaires et sur les performances de reproduction ont été étudiés. .... par le test d'ANOVA et séparés par le test de. Duncan au ..... Dunnick JK, Gupta BN, Harris MW, Lamb. JC. 1984.

  8. Medical marijuana: California update.

    Science.gov (United States)

    James, J S

    1996-08-23

    The Cannabis Buyers' Club in San Francisco remains closed after it was raided by the office of California Attorney General Dan Lungren. Many individuals with serious illnesses such as AIDS and cancer are without safe access to medical marijuana to relieve the symptoms of their diseases. The need for access to medicinal marijuana, the return of the confiscated confidential medical records held at the buyers' club, and the passage of California Proposition 215 in the November election, which allows for the legitimate use of marijuana for medical purposes are of immediate concern. Since the raid, the Cannabis Buyers' Club has denied charges that it sold marijuana to teenagers, saying the drug was sold to a teen's mother, an undercover narcotics officer. However, the club admitted to sales to non-medical individuals who used fraudulent documents in order to obtain the drug and acknowledges the need to tighten procedures. Individuals may be able to obtain marijuana at other buyers' clubs if they have documentation of a medical need. While literature on the medical use of marijuana is lacking, the Federal government continues to block any efforts toward medical research on this issue. A list of other cannabis buyers' clubs in California is included, as well as a list of organizations working for Proposition 215.

  9. California State Waters Map Series: offshore of Carpinteria, California

    Science.gov (United States)

    Johnson, Samuel Y.; Dartnell, Peter; Cochrane, Guy R.; Golden, Nadine E.; Phillips, Eleyne L.; Ritchie, Andrew C.; Kvitek, Rikk G.; Greene, H. Gary; Endris, Charles A.; Seitz, Gordon G.; Sliter, Ray W.; Erdey, Mercedes D.; Wong, Florence L.; Gutierrez, Carlos I.; Krigsman, Lisa M.; Draut, Amy E.; Hart, Patrick E.; Johnson, Samuel Y.; Cochran, Susan A.

    2013-01-01

    In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of swath sonar data, acoustic backscatter, seafloor video, seafloor photography, high-resolution seismic-reflection profiles, and bottom-sediment sampling data. The map products display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow (to about 100 m) subsurface geology. The Offshore of Carpinteria map area lies within the central Santa Barbara Channel region of the Southern California Bight. This geologically complex region forms a major biogeographic transition zone, separating the cold-temperate Oregonian province north of Point Conception from the warm-temperate California province to the south. The map area is in the southern part of the Western Transverse Ranges geologic province, which is north of the California Continental Borderland. Significant clockwise rotation—at least 90°—since the early Miocene has been proposed for the Western Transverse Ranges province, and the region is presently undergoing north-south shortening. The small city of Carpinteria is the most significant onshore cultural center in the map area; the smaller town of Summerland lies west of Carpinteria. These communities rest on a relatively flat coastal piedmont that is surrounded on the north, east, and west by hilly relief on the flanks of the Santa Ynez Mountains. El Estero, a salt marsh on the coast west of Carpinteria, is an ecologically important coastal estuary. Southeast of Carpinteria, the coastal zone is narrow strip containing highway and railway transportation corridors

  10. Relations entre acides gras oméga-3, oméga-9, structures et fonctions du cerveau. Le point sur les dernières données. Le coût financier alimentaire des oméga-3 « Je chercherai à connaître les différences qui existent entre les huiles de faine, de colza, d’olive, de noix ». Honoré de Balzac. « Histoire de César Birotteau ».

    Directory of Open Access Journals (Sweden)

    Bourre Jean-Marie

    2003-05-01

    de l’audition, de la vue et de l’odorat résulte tout autant de la diminution de l’efficacité des parties concernées du cerveau que des perturbations des récepteurs sensoriels, en particulier de l’oreille interne ou de la rétine. Un niveau de perception donné du goût du sucré exige, par exemple, une quantité de sucre plus grande chez ceux qui sont déficients en cet acide gras. Le déficit en ω6 n’étant pas encore observé, compte tenu des habitudes alimentaires, son impact sur le cerveau n’a pas été étudié. En revanche, une carence en acides gras ω9, spécifiquement en acide oléique, induit une réduction de cet acide dans nombre de tissus, excepté le cerveau (mais le nerf sciatique est touché. Ainsi, cet acide ne serait pas synthétisé en quantité suffisante, au moins pendant la période de gestation-lactation, impliquant une obligation d’apport alimentaire. Cette revue fait le point des meilleures sources d’apport en acides gras ω3, elle évalue l’ampleur des enrichissements qui peuvent être réalisés en modifiant la nourriture donnée aux animaux : modeste effet pour les ruminants, appréciables pour les viandes de porc, de lapin et de volaille ; considérable pour les oeufs et les poissons. L’impact sur la couverture des besoins de l’homme est déterminé, ainsi que les conséquences pour sa santé. Pour la première fois, le coût pour le consommateur est précisé, en classant les principaux aliments par rapport au prix des ω3 qu’ils contiennent.

  11. Enjeux, difficultés et modalités de l’expression sur le travail : point de vue de la clinique médicale du travail Concerns in occupational medicine about stakes, difficulties and conditions of dispute about work Retos, dificultades y modalidades de la expresión sobre el trabajo : punto de vista de la clínica médica del trabajo

    Directory of Open Access Journals (Sweden)

    Philippe Davezies

    2012-11-01

    Full Text Available L’intensification du travail oblige les salariés de tous secteurs et de tous niveaux hiérarchiques à des arbitrages serrés entre les différents objectifs du travail. Faute d’espace de discussion, chacun se débrouille seul, avec comme conséquence une individualisation des questions, une montée des conflits et une dégradation de la performance. Cette situation appelle la mise en place des espaces d’expression sur le travail, prévus dans la loi française. Cette orientation se heurte cependant à une difficulté : l’activité du travailleur est en avance sur sa conscience et beaucoup plus riche que ce qu’il est capable d’exprimer. Des espaces autonomes d’élaboration des enjeux du travail sont nécessaires pour créer les conditions d’une discussion avec la hiérarchie susceptible de porter ses fruits dans le domaine de la santé au travail et dans celui de la performance globale de l’entreprise.Regardless of the job sector or hierarchical position, work intensification forces workers to make hard choices between the different goals they are expected to meet. Due to a lack of discussion, people have to manage by themselves. The consequences are a rising tide of interpersonal conflicts and occupational stress associated with a deterioration in overall performance. This situation requires that time and places be set aside for work disputes, in keeping with French law. Nevertheless, there is a serious difficulty in actualizing this law: the worker’s tacit knowledge of his work is much richer than his conscious ability to verbalize and describe the work activity. Self-governed, employee-reserved times and places for working out the stakes at issue are necessary before discussing with the administration if we are to arrive at favourable results for occupational health and overall company performance.La intensificación del trabajo obliga a los empleados, independientemente del sector o del nivel jerárquico al que

  12. Agir sur la langue pour agir sur le monde : Micropolitiques linguistiques autogérées du genre dans les brochures libertaires

    OpenAIRE

    Abbou, Julie

    2015-01-01

    La dimension agissante de la langue sur le monde entraîne avec elle, comme un appel d'air, l'action sur la langue elle-même, et l'action sur la langue n'est jamais loin de se faire action politique. Les politiques linguistiques de féminisation en sont un exemple, où l'action politique se concentre sur la catégorisation du genre. Dans de nombreux cas, la politique linguistique se fait planification linguistique, cherchant de nouvelles normes. Dans de nombreux cas, mais pas toujours. Il existe ...

  13. Ecoregions of California

    Science.gov (United States)

    Griffith, Glenn E.; Omernik, James M.; Smith, David W.; Cook, Terry D.; Tallyn, Ed; Moseley, Kendra; Johnson, Colleen B.

    2016-02-23

    Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. They are designed to serve as a spatial framework for the research, assessment, management, and monitoring of ecosystems and ecosystem components. By recognizing the spatial differences in the capacities and potentials of ecosystems, ecoregions stratify the environment by its probable response to disturbance (Bryce and others, 1999). These general purpose regions are critical for structuring and implementing ecosystem management strategies across Federal agencies, State agencies, and nongovernment organizations that are responsible for different types of resources in the same geographical areas (Omernik and others, 2000).The approach used to compile this map is based on the premise that ecological regions are hierarchical and can be identified through the analysis of the spatial patterns and the composition of biotic and abiotic phenomena that affect or reflect differences in ecosystem quality and integrity (Wiken, 1986; Omernik, 1987, 1995). These phenomena include geology, physiography, vegetation, climate, soils, land use, wildlife, and hydrology. The relative importance of each characteristic varies from one ecological region to another regardless of the hierarchical level. A Roman numeral hierarchical scheme has been adopted for different levels of ecological regions. Level I is the coarsest level, dividing North America into 15 ecological regions. Level II divides the continent into 50 regions (Commission for Environmental Cooperation Working Group, 1997, map revised 2006). At level III, the continental United States contains 105 ecoregions and the conterminous United States has 85 ecoregions (U.S. Environmental Protection Agency, 2013). Level IV, depicted here for California, is a further refinement of level III ecoregions. Explanations of the methods used to define these ecoregions are given in Omernik (1995), Omernik and others

  14. Vérification du point de vue des droits de la personne et de la paix ...

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

    Vérification du point de vue des droits de la personne et de la paix de la ... ou une nation prend le contrôle de la zone territoriale où il ou elle est installé(e). ... IWRA/CRDI sur les changements climatiques et la gestion adaptive de l'eau.

  15. CARACTERIZACIÓN DEL CONSUMO DE HORTALIZAS EN LAS FAMILIAS DEL SUR-SUR DE COSTA RICA

    Directory of Open Access Journals (Sweden)

    Alexis Villalobos-Monge

    2013-01-01

    Full Text Available El objetivo de este trabajo fue determinar los diferentes aspectos cuantitativos y cualitativos que explican la cultura de consumo actual de hortalizas en las familias residentes en la zona sur-sur de Costa Rica. Este trabajo expone resultados relacionados a la caracterización realizada en el 2011 en familias residentes en la denominada zona sur-sur de Costa Rica sobre la cultura de consumo de productos hortícolas. Se aplicaron cuestionarios a una muestra estratificada de familias; lo que permitió establecer la valoración de los precios de mercado, por parte de las familias, para consumir estos alimentos, donde se determinó un valor máximo de US$1,74 millones por semana. Los principales rubros de consumo de acuerdo al valor pagado fueron el tomate, la papa, el plátano, la cebolla y el brócoli, para citar los cinco principales. También fue posible establecer valoraciones cualitativas sobre el consumo de estos productos; por ejemplo se determinó que para el 71,2% de las familias, la frescura representa la característica de mayor valor, además, el principal sitio donde los núcleos familiares realizan las compras de estos alimentos corresponde a supermercados (38,4% de los casos.

  16. Preliminary design of four aircraft to service the California Corridor in the year 2010: The California Condor, California Sky-Hopper, high capacity short range transport tilt rotor aircraft needed to simplify intercity transportation

    Science.gov (United States)

    1989-01-01

    The major objective of this project was to design an aircraft for use in the California Corridor in the year 2010. The design process, completed by students in a senior design class at California Polytechnic State University, San Luis Obispo, used a Class 1 airplane design analysis from Jan Roskam's Airplane Design. The California Condor (CC-38), a 38 passenger, 400 mph aircraft, was designed to meet the needs of tomorrow's passengers while conforming to the California Corridor's restrictions. Assumptions were made using today's technology with forecasts into 21st Century technology. Doubling today's commuter aircraft passenger capacity, travelling at Mach .57 with improved cruise efficiencies of over 10 percent, with the ability to land within field lengths of 4000 feet, are the CC-38's strongest points. The California Condor has a very promising future in helping to relieve the air traffic and airport congestion in the 21st Century.

  17. Accountability for Alternative Schools in California. Continuous Improvement Series

    Science.gov (United States)

    de Velasco, Jorge Ruiz; Gonzales, Daisy

    2017-01-01

    California's alternative education options for youth vulnerable to dropping out of school have been established at different historical points and for different student age and target populations. For purposes of this brief, "alternative school" is defined as belonging to one of six legislatively authorized types of public (non-charter)…

  18. California State Waters Map Series: offshore of Santa Barbara, California

    Science.gov (United States)

    Johnson, Samuel Y.; Dartnell, Peter; Cochrane, Guy R.; Golden, Nadine E.; Phillips, Eleyne L.; Ritchie, Andrew C.; Greene, H. Gary; Krigsman, Lisa M.; Kvitek, Rikk G.; Dieter, Bryan E.; Endris, Charles A.; Seitz, Gordon G.; Sliter, Ray W.; Erdey, Mercedes D.; Gutierrez, Carlos I.; Wong, Florence L.; Yoklavich, Mary M.; Draut, Amy E.; Hart, Patrick E.; Conrad, James E.; Cochran, Susan A.; Johnson, Samuel Y.; Cochran, Susan A.

    2013-01-01

    In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of swath sonar data, acoustic backscatter, seafloor video, seafloor photography, high-resolution seismic-reflection profiles, and bottom-sediment sampling data. The map products display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow (to about 100 m) subsurface geology. The Offshore of Santa Barbara map area lies within the central Santa Barbara Channel region of the Southern California Bight. This geologically complex region forms a major biogeographic transition zone, separating the cold-temperate Oregonian province north of Point Conception from the warm-temperate California province to the south. The map area is in the southern part of the Western Transverse Ranges geologic province, which is north of the California Continental Borderland. Significant clockwise rotation—at least 90°—since the early Miocene has been proposed for the Western Transverse Ranges province, and geodetic studies indicate that the region is presently undergoing north-south shortening. Uplift rates (as much as 2.2 mm/yr) that are based on studies of onland marine terraces provide further evidence of significant shortening. The city of Santa Barbara, the main coastal population center in the map area, is part of a contiguous urban area that extends from Carpinteria to Goleta. This urban area was developed on the coalescing alluvial surfaces, uplifted marine terraces, and low hills that lie south of the east-west-trending Santa Ynez Mountains. Several beaches line the actively

  19. California community water systems inventory dataset, 2010

    Data.gov (United States)

    California Environmental Health Tracking Program — This data set contains information about all Community Water Systems in California. Data are derived from California Office of Drinking Water (ODW) Water Quality...

  20. CARTOTOOL: un utilitaire de tracé de cartes sur stations de travail et micro-ordinateurs

    Directory of Open Access Journals (Sweden)

    Xavier Bemardet

    1990-05-01

    Full Text Available CARTOTOOL, logiciel interactif de tracé de cartes à différentes échelles, fonctionne, aussi bien sur écran monochrome que couleur, dans un environnement multifenêtrage SUNTOOLS. Développé pour utiliser WORLD DATA BASE II, il peut aussi tracer n'importe quel type de fichier de contours ayant un format compatible avec celui de la base. Outre ses fonctions de dessin, CARTOTOOL permet la recherche manuelle de coordonnées de points et le positionnement de relevés.

  1. The California Valley grassland

    Science.gov (United States)

    Keeley, J.E.; Schoenherr, Allan A.

    1990-01-01

    Grasslands are distributed throughout California from Oregon to Baja California Norte and from the coast to the desert (Brown 1982) (Figure 1). This review will focus on the dominant formation in cismontane California, a community referred to as Valley Grassland (Munz 1959). Today, Valley Grassland is dominated by non-native annual grasses in genera such as Avena (wild oat), Bromus (brome grass), and Hordeum (barley), and is often referred to as the California annual grassland. On localized sites, native perennial bunchgrasses such as Stipa pultra (purple needle grass) may dominate and such sites are interpreted to be remnants of the pristine valley grassland. In northwestern California a floristically distinct formation of the Valley Grassland, known as Coast Prairie (Munz 1959) or Northern Coastal Grassland (Holland and Keil 1989) is recognized. The dominant grasses include many native perennial bunchgrasses in genera such as Agrostis, Calamagrostis, Danthonia, Deschampsia, Festuca, Koeleria and Poa (Heady et al. 1977). Non-native annuals do not dominate, but on some sites non-native perennials like Anthoxanthum odoratum may colonize the native grassland (Foin and Hektner 1986). Elevationally, California's grasslands extend from sea level to at leas 1500 m. The upper boundary is vague because montane grassland formations are commonly referred to as meadows; a community which Munz (1959) does not recognize. Holland and Keil (1989) describe the montane meadow as an azonal community; that is, a community restricted not so much to a particular climatic zone but rather controlled by substrate characteristics. They consider poor soil-drainage an over-riding factor in the development of montane meadows and, in contrast to grasslands, meadows often remain green through the summer drought. Floristically, meadows are composed of graminoids; Cyperaceae, Juncaceae, and rhizomatous grasses such as Agropyron (wheat grass). Some bunchgrasses, such as Muhlenbergia rigens, are

  2. Predictability of the California Current System

    Science.gov (United States)

    Miller, Arthur J.; Chereskin, T.; Cornuelle, B. D.; Niiler, P. P.; Moisan, J. R.; Lindstrom, Eric (Technical Monitor)

    2001-01-01

    The physical and biological oceanography of the Southern California Bight (SCB), a highly productive subregion of the California Current System (CCS) that extends from Point Conception, California, south to Ensenada, Mexico, continues to be extensively studied. For example, the California Cooperative Oceanic Fisheries Investigations (CalCOFI) program has sampled this region for over 50 years, providing an unparalleled time series of physical and biological data. However, our understanding of what physical processes control the large-scale and mesoscale variations in these properties is incomplete. In particular, the non-synoptic and relatively coarse spatial sampling (70km) of the hydrographic grid does not completely resolve the mesoscale eddy field (Figure 1a). Moreover, these unresolved physical variations exert a dominant influence on the evolution of the ecosystem. In recent years, additional datasets that partially sample the SCB have become available. Acoustic Doppler Current Profiler (ADCP) measurements, which now sample upper-ocean velocity between stations, and sea level observations along TOPEX tracks give a more complete picture of the mesoscale variability. However, both TOPEX and ADCP are well-sampled only along the cruise or orbit tracks and coarsely sampled in time and between tracks. Surface Lagrangian drifters also sample the region, although irregularly in time and space. SeaWiFS provides estimates of upper-ocean chlorophyll-a (chl-alpha), usually giving nearly complete coverage for week-long intervals, depending on cloud coverage. Historical ocean color data from the Coastal Zone Color Scanner (CZCS) has been used extensively to determine phytoplankton patterns and variability, characterize the primary production across the SCB coastal fronts, and describe the seasonal and interannual variability in pigment concentrations. As in CalCOFI, these studies described much of the observed structures and their variability over relatively large space and

  3. Sur un deplacement de valeurs: traire et tirer

    Directory of Open Access Journals (Sweden)

    André Burger

    1972-12-01

    Full Text Available L'étymologie de firer est inconnue. Celie que le regretté W. von Wart burg a ern pouvoir avancer est inacceptable: firer serait sorti de marty rier par la grâce d'une fausse coupure mar tirier. Il est plus qu'improbable que cette «étymologie populaire» eût pu se produire si la langue ne possédait pas au préalable un verbe tirier. Au surplus aucun fait n'appuie cette hypothèse. Le FEW, t. VI, 1, p. 396, donne bien pour firer le sens de «torturer sur un treteam>, au XIIIe siècle, et p. 403, «démembrer en faisant tirer les quatre membles par des chevaux» et «torturer (qn en l'étendant sur un tréteau” au XIVe siècle; ces sens sont évidemment trop tardifs pour permettre des conclusions sur l'origine de firer, d'autant plus qu'ils s'expliquent sans peine par la valeur normale du mot, attesté dès la Chanson de Roland, sans aucun rapport avec martirie, mot savant de clerc, qui, dans le même texte s'applique deux fois sur quatre exemples aux Sarrasins, vv. 501 et 1467, où il ne signifie pas «martyre» mais <sur son étymologie et non sur les textes, que tirer aurait à l'origine »einen starken affektiven unterton« (FEW XIII, 2, p. 185. L'étude des exemples de la Chanson de Roland, confrontés avec ceux de traire, nons amènera à une conclusion toute différente.

  4. Conservation issues: California chaparral

    Science.gov (United States)

    Halsey, Richard W.; Keeley, Jon E.

    2016-01-01

    California chaparral, a sclerophyllous shrub-dominated plant community shaped by a Mediterranean-type climate and infrequent, high-intensity fire, is one of the most biodiverse and threatened habitats on Earth. Distinct forms of chaparral, distinguished by differing species composition, geography, and edaphic characteristics, can cover thousands of hectares with dense vegetation or be restricted to smaller communities identified by the presence of endemic species. To maintain the biodiversity of chaparral, protective land management actions will be required to mitigate the loss due to the impacts of human population growth, development, climate change, and increased fire frequencies.

  5. California quake assessed

    Science.gov (United States)

    Wuethrich, Bernice

    On January 17, at 4:31 A.M., a 6.6 magnitude earthquake hit the Los Angeles area, crippling much of the local infrastructure and claiming 51 lives. Members of the Southern California Earthquake Network, a consortium of scientists at universities and the United States Geological Survey (USGS), entered a controlled crisis mode. Network scientists, including David Wald, Susan Hough, Kerry Sieh, and a half dozen others went into the field to gather information on the earthquake, which apparently ruptured an unmapped fault.

  6. California Tiger Salamander Range - CWHR [ds588

    Data.gov (United States)

    California Natural Resource Agency — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  7. Giant Reed Distribution - Northern California [ds333

    Data.gov (United States)

    California Natural Resource Agency — The Arundo Distribution layer is a compilation of Arundo donax observations in northern and central California, obtained from several sources, including Arundo...

  8. Herpetofauna Surveys, Northern California - 2010 [ds694

    Data.gov (United States)

    California Natural Resource Agency — We recorded all incidental herpetofauna encountered during visual encounter and dipnet surveys in northern California. Surveys took place from April 2, 2010 to...

  9. Hydrogen energy system in California

    International Nuclear Information System (INIS)

    Zweig, R.M.

    1995-01-01

    Results of experiences on the use of hydrogen as a clean burning fuel in California and results of the South Coast Air Quality Management district tests using hydrogen as a clean burning environmentally safe fuel are given. The results of Solar Hydrogen Projects in California and recent medical data documentation of human lung damage of patients living in air polluted urban areas are summarized

  10. Experts Question California's Algebra Edict

    Science.gov (United States)

    Cavanagh, Sean

    2008-01-01

    Business leaders from important sectors of the American economy have been urging schools to set higher standards in math and science--and California officials, in mandating that 8th graders be tested in introductory algebra, have responded with one of the highest such standards in the land. Still, many California educators and school…

  11. Monitoring guidelines improve control of walnut husk fly in California

    International Nuclear Information System (INIS)

    Opp, Susan B.; Reynolds, Katherine M.; Pickel, Carolyn; Olson, William

    2000-01-01

    , Monterey and Sutter Counties. By 1965, populations of WHF were found in Kings, San Francisco, Marin, Colusa, Glenn and Butte Counties, essentially having invaded every county in California by the end of that year (Anonymous 1966). The history of WHF in California is an interesting case of invasion biology because a smooth outward spread from the point of initial introduction did not occur. Instead, some regions of northern California, such as Sonoma, Amador, and Lake Counties, were colonised prior to more central walnut growing regions, such as Fresno County. Armed with this historical information and based on allozyme work which suggested WHF in their native range were more genetically similar to each other than to flies in California, Berlocher (1984) suggested that WHF was introduced into California just once. The subsequent spread of the fly throughout the state was likely to have taken place by secondary introductions facilitated by human movements of infested walnuts from one or more of the established California populations (Berlocher 1984)

  12. Chromium carcinogenicity: California strategies.

    Science.gov (United States)

    Alexeeff, G V; Satin, K; Painter, P; Zeise, L; Popejoy, C; Murchison, G

    1989-10-01

    Hexavalent chromium was identified by California as a toxic air contaminant (TAC) in January 1986. The California Department of Health Services (CDHS) concurred with the findings of the International Agency for Research on Cancer that there is sufficient evidence to demonstrate the carcinogenicity of chromium in both animals and humans. CDHS did not find any compelling evidence demonstrating the existence of a threshold with respect to chromium carcinogenesis. Experimental data was judged inadequate to assess potential human reproductive risks from ambient exposures. Other health effects were not expected to occur at ambient levels. The theoretically increased lifetime carcinogenic risk from a continuous lifetime exposure to hexavalent chromium fell within the range 12-146 cancer cases per nanogram hexavalent chromium per cubic meter of air per million people exposed, depending on the potency estimate used. The primary sources found to contribute significantly to the risk of exposure were chrome platers, chromic acid anodizing facilities and cooling towers utilizing hexavalent chromium as a corrosion inhibitor. Evaluation of genotoxicity data, animal studies and epidemiological studies indicates that further consideration should be given to the potential carcinogenicity of hexavalent chromium via the oral route.

  13. Biomass resources in California

    Energy Technology Data Exchange (ETDEWEB)

    Tiangco, V.M.; Sethi, P.S. [California Energy Commission, Sacramento, CA (United States)

    1993-12-31

    The biomass resources in California which have potential for energy conversion were assessed and characterized through the project funded by the California Energy Commission and the US Department of Energy`s Western Regional Biomass Energy Program (WRBEP). The results indicate that there is an abundance of biomass resources as yet untouched by the industry due to technical, economic, and environmental problems, and other barriers. These biomass resources include residues from field and seed crops, fruit and nut crops, vegetable crops, and nursery crops; food processing wastes; forest slash; energy crops; lumber mill waste; urban wood waste; urban yard waste; livestock manure; and chaparral. The estimated total potential of these biomass resource is approximately 47 million bone dry tons (BDT), which is equivalent to 780 billion MJ (740 trillion Btu). About 7 million BDT (132 billion MJ or 124 trillion Btu) of biomass residue was used for generating electricity by 66 direct combustion facilities with gross capacity of about 800 MW. This tonnage accounts for only about 15% of the total biomass resource potential identified in this study. The barriers interfering with the biomass utilization both in the on-site harvesting, collection, storage, handling, transportation, and conversion to energy are identified. The question whether these barriers present significant impact to biomass {open_quotes}availability{close_quotes} and {open_quotes}sustainability{close_quotes} remains to be answered.

  14. Copulation by California condors

    Science.gov (United States)

    Wilbur, S.R.; Borneman, J.C.

    1972-01-01

    Koford (Res. Rept. No. 3, Natl. Audubon Soc., 1953) observed sexual display among California Condors (Gymnogyps californianus) on more than 30 occasions, yet only once did he see what he thought was copulation. Some of the displays he watched were quite intricate, with considerable posturing and "male" aggression, but no such activity preceded this copulation. The birds sat several feet apart for over 1 hour, then one climbed onto the other's back, staying there 1/2 minute and flapping gently at the apparent moment of coition. Afterward they sat quietly 1/2 hour before flying away. This led Koford to state (p. 79) that "possibly in Gymnogyps copulation is not immediately preceded by display." We have records of 8 California Condor copulations, 5 of which are similar to that described above. The three other occasions began similarly, with the birds sitting quietly, but then the "male" displayed briefly before the "female" with wings half spread and head drooping forward. This elicited no apparent response, but the male immediately walked behind and mounted the female. The apparent moment of coition was accompanied by gentle wing flapping in all instances.

  15. biofuel development in California

    Directory of Open Access Journals (Sweden)

    Varaprasad Bandaru

    2015-07-01

    Full Text Available Biofuels are expected to play a major role in meeting California's long-term energy needs, but many factors influence the commercial viability of the various feedstock and production technology options. We developed a spatially explicit analytic framework that integrates models of plant growth, crop adoption, feedstock location, transportation logistics, economic impact, biorefinery costs and biorefinery energy use and emissions. We used this framework to assess the economic potential of hybrid poplar as a feedstock for jet fuel production in Northern California. Results suggest that the region has sufficient suitable croplands (2.3 million acres and nonarable lands (1.5 million acres for poplar cultivation to produce as much as 2.26 billion gallons of jet fuel annually. However, there are major obstacles to such large-scale production, including, on nonarable lands, low poplar yields and broad spatial distribution and, on croplands, competition with existing crops. We estimated the production cost of jet fuel to be $4.40 to $5.40 per gallon for poplar biomass grown on nonarable lands and $3.60 to $4.50 per gallon for biomass grown on irrigated cropland; the current market price is $2.12 per gallon. Improved poplar yields, use of supplementary feedstocks at the biorefinery and economic supports such as carbon credits could help to overcome these barriers.

  16. La Convention de Rio sur la diversité biologique

    OpenAIRE

    Maljean-Dubois , Sandrine

    2016-01-01

    International audience; Du 3 au 14 juin 1992, en écho à la première grande conférence onusienne sur l'environnement et le développement, celle de Stockholm organisée en 1972, se tenait à Rio de Janeiro la Conférence des Nations Unies sur l'environnement et le développement (CNUED), dite aussi Sommet de la Terre. Cette conférence marquait une étape dans la perception des enjeux environnementaux et suscitait de vifs espoirs. Un programme d'action pour le XXI ème siècle, Action 21, dont le chapi...

  17. IMPACT DU SECTEUR FINANCIER SUR L'ACTIVITE ...

    African Journals Online (AJOL)

    visant à adapter le secteur financier à l'économie de marché. Ces réformes ont pour objectif d'éliminer .... économiques (secteur privé et secteur public), deux comptes regroupant les institutions financières à savoir la .... Maroc.11 Nadia Bentaleb (2002)12 a étudié l'impact d'un investissement énergétique sur une économie ...

  18. Bilan du programme autrichien de recherche sur les paysages

    Directory of Open Access Journals (Sweden)

    Karolina Begusch-Pfefferkorn

    2009-03-01

    Full Text Available Austrian Landscape Research, a programme of the Austrian Ministry of Science, has created scientific foundations for the sustainable development of Austrian landscapes and regions (plus bordering regions. Landscapes and regions were to be explored from different angles; implementing the research findings was to be part of the research work. The programme was designed to make room for science open to society, for unconventional ideas, methods, and courses of action. Programmatic targets and research principles supported this intent. The results of the programme met with national and international approval. The ALR knowledge balance is an attempt at presenting and assessing the achievements of this comprehensive contract research programme.Le programme du Ministère autrichien des Sciences, intitulé « Recherche sur le paysage autrichien », visait à construire les fondements scientifiques d’un développement durable des paysages et des régions de l’Autriche et des territoires limitrophes. Les paysages et les régions ont été étudiés selon différentes approches disciplinaires et la mise en pratique des résultats de cette étude était partie prenante du programme de recherche. La vocation de ce programme était de faire la place à une science ouverte sur la société, à des idées, méthodes et pratiques non conventionnelles. Les objectifs du programme et les principes de recherche vont dans le sens de ces exigences. Les résultats du programme ont été reconnus sur le plan national et international. Le bilan des connaissances du programme de recherche sur le paysage autrichien (KLF a pour but de présenter et d’évaluer les performances de ce vaste programme de recherche.

  19. Incidence de la densite sur les performances de production, la ...

    African Journals Online (AJOL)

    L'étude montre l'incidence du facteur densités sur les résultats d'élevage, le rendement carcasse, la qualité organoleptique et le comportement de deux souches de poulets chair élevées au Bénin. Au total, 180 poulets de chair soit 90 poulets de chacune des souches Ross et Cobb 500 répartis en 4 traitements de trois ...

  20. Sur quelques espèces du genre Scarabaeus L

    NARCIS (Netherlands)

    Gillet, Joseph J.E.

    1909-01-01

    Dans une note insérée aux Annali del Museo Civico di storia naturale di Genova ¹), je rue suis occupé, entre autres choses, de la synonymie de quelques espèces de Scarabaeus; je désire revenir sur ce sujet et y ajouter les remarques que m’a suggérées l’examen du type de S. van der Kelleni LSBG. et

  1. Etude sur les sources de la passion du Palatinus

    NARCIS (Netherlands)

    Maas, Paul Marie

    1942-01-01

    Notre étude sur la Passion du Palatinus étant terminée, nous voudrions ajouter un aperçu des principaux résultats obtenus. Quelque modestes qu'ils soient, nous espérons que ces résultats pouront contribuer à faire mieux comprendre les rapports obscurs qui existent entre notre Passion et ses sources

  2. Regroupement des statistiques sur le secteur des TIC et analyse ...

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

    La présence et l'influence des technologies de l'information et de la communication (TIC) continuent de s'élargir et de s'accroître, tout comme leurs répercussions sur le développement économique. Toutefois, il reste encore beaucoup de travail à faire avant de pouvoir comprendre d'une manière systématique et ...

  3. Suivi sur le programme de mentorat de journalistes scientifiques des ...

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

    12 oct. 2010 ... Il doit rédiger un article sur l'éducation et les droits de l'homme. Mais les chercheurs refusent de communiquer leurs informations, le journaliste doit présenter une requête par écrit. Ce qu'il fait. Godefroy Chabi n'obtiendra jamais de réponse. Une entrave intolérable aux libertés d'accès à l'information ?

  4. SECTION 4 : BUDGET Remarque : Pour en savoir plus sur les ...

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

    (anonymous)

    SECTION 4 : BUDGET. Remarque : Pour en savoir plus sur les restrictions budgétaires, consulter l'appel à propositions et la foire aux questions. Inscrire toutes les sommes en dollars canadiens. 4.1 Indiquez toutes les dépenses prévues (en CAD). Inscrire une valeur numérique sans caractères, ni espaces, ni virgules (p. ex ...

  5. Analyse des politiques sur la grippe aviaire | IDRC - International ...

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

    ... à prévenir sa transmission à l'humain et à renforcer les mesures nationales de préparation en cas de pandémie de grippe aviaire. Le Partenariat de recherche sur l'influenza aviaire en Asie (APAIR) regroupe des organismes de recherche nationaux ainsi que des ministères de la Chine, du Cambodge, de l'Indonésie, ...

  6. Ciudades de madera. Patrimonio del sur, un bien reciclable

    Directory of Open Access Journals (Sweden)

    Edward Rojas V.

    1994-05-01

    Full Text Available Hace algunos años reflexionaba en una de las páginas del número especial (N° 12 de la Revista Arquitecturas del Sur, dedicado a la ciudad de Castro, que la arquitectura así como la fotografía en la medida en que son registros concretos de la acción humana tienen la cualidad de atrapar con su materialidad ese preciso instante de la historia de la que son productos.

  7. Rapport annuel au Parlement Loi sur la protection des ...

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

    3) l'innovation, la politique et la science, 4) la recherche pour l'équité en santé et ... Le Centre n'a reçu aucune plainte au sujet de l'administration de la Loi sur la ... Art. 18(2). VI. Extentions/. Prorogations des délais. 30 days or under /. 30 jours ...

  8. Influence des actions anthropiques sur la dynamique spatio ...

    African Journals Online (AJOL)

    Sci-Nat

    Située à proximité de Kinshasa, la province du Bas-Congo (R.D. Congo) est l'une des principales pourvoyeuses en produits vivriers de cette ville. Par conséquent, l'augmentation de la pression sur les ressources naturelles s'accentue. L'analyse diachronique du paysage peut servir à montrer l'effet des actions ...

  9. impacts des rejets industriels sur les eaux souterraines

    African Journals Online (AJOL)

    USER

    pollution et sont nombreuses, notamment les usines sidérurgiques, métalliques et pétrochimiques. Leurs rejets ont des effets néfastes sur les eaux de la région. Actuellement, les effluents industriels situés dans la région de Berrahal, contiennent d'importantes quantités de produits chimiques organiques et inorganiques et ...

  10. L'Avenir de la Vie sur la Terre

    CERN Document Server

    CERN. Geneva

    2007-01-01

    Notre planète va mal : réchauffement climatique, épuisement des ressources naturelles, pollutions des sols et de l'eau provoquées par les industries civiles et guerrières, disparité des richesses, malnutrition des hommes, taux d'extinction effarant des espèces vivantes, etc. La situation est-elle vraiment dramatique ? Que penser des thèses qui contestent ce pessimisme ? À partir des données scientifiques les plus crédibles - et de leurs incertitudes -, Hubert Reeves dresse un bilan précis des menaces qui pèsent sur la planète. Son diagnostic est alarmant : si la vie sur Terre est robuste, c'est l'avenir de l'espèce humaine qui est en cause. Le sort de l'aventure humaine, entamée il y a des millions d'années, va-t-il se jouer en l'espace de quelques décennies ? Notre avenir est entre nos mains. Il faut réagir, et vite, avant qu'il ne soit trop tard. Auteur de nombreux ouvrages sur l'odyssée cosmique tel Patience dans l'azur ou Poussières d'étoiles, Hubert Reeves est astrophysicien et dire...

  11. La vérite sur ce qui nous motive

    CERN Document Server

    Pink, Daniel H

    2011-01-01

    Voici enfin la traduction française du best-seller international DRIVE ! Qu'est-ce qui nous motive vraiment ? Dans quels cas sommes-nous les plus performants et les plus enthousiastes ? La plupart d'entre nous sommes persuadés que les récompenses (salaire, primes...) sont notre meilleure motivation. La logique de la carotte et du bâton finalement... Et si nous faisions fausse route ? En s'appuyant sur quatre décennies d'études scientifiques et psychologiques sur la motivation humaine, Pink démontre que les entreprises dirigent très mal leurs équipes avec d'énormes conséquences sur notre vie (absence d'ambition, lassitude, morosité). Le secret de la performance (et de la satisfaction) dans les entreprises, l'enseignement ou dans notre vie personnelle , c'est le besoin profondément humain de diriger sa propre vie, d'apprendre, de créer de nouvelles choses et de s'améliorer. Dans ce livre, Pink examine les 3 éléments de la motivation, l'autonomie, la maîtrise et le besoin de donner un sens ...

  12. Comparative study of the ionic exchange of Ca{sup ++}, Sr{sup ++}, and Ba{sup ++} cations on resins and inorganic exchangers; Etude comparative de l'echange ionique des cations Ca{sup ++}, Sr{sup ++} et Ba{sup ++} sur resine et sur echangeurs mineraux

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez Batanero, P [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1969-03-01

    methodes de separation par elution sur colonne de resine Dowex 50 W (NH{sub 4}{sup +}) x 8 et sur phosphate de zirconium du melange des elements alcalino-terreux en milieu DCTA-NH{sub 4}{sup +} ont ete mises au point. En milieux complexants sur resine echangeuse d'ions, le DCTA s'est revele le plus interessant, car les coefficients de partage des elements Ca-Sr et Ba sont tres differents les uns des autres. Les mesures des coefficients de partage sur phosphate de zirconium (forme NH{sub 4}{sup +}) en milieu DCTA - NH{sub 4}{sup +} montrent des possibilites interessantes de separation sur colonne. La separation des elements alcalino-terreux sur phosphate de zirconium semble etre moins quantitative que sur resine Dowex 50, mais par contre elle est beaucoup plus rapide, ce qui peut etre interessant lorsque l'on travaille sur des radioisotopes de courte periode en analyse par activation. (auteur)

  13. Pratiques de publicité au point de vente dans l'industrie du tabac ...

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

    Des études menées dans des pays comme le Canada démontrent que la publicité au point de vente exerce une influence importante sur les écoliers et peut les prédisposer à devenir fumeurs. De plus, les ... Articles de revue. Tobacco point-of-sale advertising in Guatemala city, Guatemala and Buenos Aires, Argentina.

  14. A MAXIMUM POWER POINT TRACKING SCHEME FOR A 1kW ...

    African Journals Online (AJOL)

    user

    knee point of PV system under variable atmospheric conditions have been ..... of the PV generator module increases, and the maximum power output increases as well. ..... Water Pumping System” A Thesis resented to the. Faculty of California ...

  15. Concilier plaisir et nutrition. Travaux des groupes de travail PNNS sur les lipides et sur le goût

    OpenAIRE

    Souliac , L.; Bizet, G.; Remy, S.

    2010-01-01

    Les ministères chargés de l'alimentation et de la santé ont incité les opérateurs à mettre sur le marché des aliments moins riches en lipides, par la signature avec l'État de chartes d'engagement sur la composition nutritionnelle. L'observatoire de la qualité de l'alimentation suit l'évolution de ces efforts. Les lipides ont un rôle technologique et sensoriel important qu'il convient de prendre en considération. Il est aujourd'hui possible d'améliorer le profil nutritionnel des aliments, tout...

  16. Onshore and offshore apatite fission-track dating from the southern Gulf of California: Insights into the time-space evolution of the rifting

    Science.gov (United States)

    Balestrieri, Maria Laura; Ferrari, Luca; Bonini, Marco; Duque-Trujillo, Jose; Cerca, Mariano; Moratti, Giovanna; Corti, Giacomo

    2017-11-01

    We present the results of a apatite fission-track (AFT) study on intrusive rocks in the southern Gulf of California, sampled along the eastern margin of Baja California Sur (western rift margin), as well as from islands and submerged rifted blocks within the Gulf of California, and from the conjugate Mexican margin (Nayarit state). For most of the samples U-Pb zircon and 40Ar-39Ar mineral ages were already available (Duque-Trujillo et al., 2015). Coupled with the new AFT data these ages provide a more complete information on cooling after emplacement. Our samples span a wide range of ages between 5.5 ± 1.1 and 73.7 ± 5.8 Ma, and show a general spatial distribution, with late Miocene AFT ages (about 6 Ma) aligned roughly NW-SE along a narrow offshore belt, parallel to Baja California Peninsula, separating older ages on both sides. This pattern suggests that in Late Miocene, deformation due to plate transtension focused at the eastern rheological boundary of the Baja California block. Some Early Miocene AFT ages onshore Baja California could be related to plutons emplaced at shallow depths and thermal resetting associated with the onset of volcanism at 19 Ma in this part of the Peninsula. On the other hand, an early extensional event similar to that documented in the eastern Gulf cannot be ruled out in the westernmost Baja California.

  17. La quinzième conférence internationale sur le tournesol

    Directory of Open Access Journals (Sweden)

    Dymock Paul

    2000-05-01

    Full Text Available La 15e conférence internationale sur le tournesol a réuni, du 13 au 15 juin 2000, 400 participants venus de 33 pays au Centre des congrès Pierre-Baudis de Toulouse. Outre la France, les grands pays producteurs de tournesol étaient bien représentés : Argentine, Espagne, États-Unis, Roumanie, Italie... L’objectif de cette conférence était de faire le point sur cette production, depuis l’économie jusqu’aux biotechnologies et de permettre aux chercheurs de présenter leurs derniers travaux et de confronter et de discuter leurs résultats. L’Association française des corps gras (AFECG s’était associée à cette manifestation dans le cadre de sa Journée de printemps, en prenant en charge les sessions Économie et Technologie dont sont reproduites ci-jointes plusieurs conférences. Les séances plénières des deux journées suivantes ont été centrées sur les thèmes « Agronomie et Environnement » et « Génétique, Sélection et Biotechnologie ». Dix-sept ateliers ont été organisés à partir des présentations par posters. Ils ont donné l’occasion aux participants d’approfondir les réflexions autour de sujets tels que les technologies de transformation, les nouveaux usages, la conduite des cultures, l’amélioration de la productivité, la qualité de l’huile, la protection phytosanitaire sous ses aspects génétiques et chimiques, les biotechnologies appliquées à l’amélioration génétique. OCL publiera dans ses prochaines livraisons un compte rendu plus détaillé de cette conférence ainsi que plusieurs interventions pleinières*. * Les actes de la conférence sont disponibles. Contacter :

  18. Effets des electrons secondaires sur l'ADN

    Science.gov (United States)

    Boudaiffa, Badia

    Les interactions des electrons de basse energie (EBE) representent un element important en sciences des radiations, particulierement, les sequences se produisant immediatement apres l'interaction de la radiation ionisante avec le milieu biologique. Il est bien connu que lorsque ces radiations deposent leur energie dans la cellule, elles produisent un grand nombre d'electrons secondaires (4 x 104/MeV), qui sont crees le long de la trace avec des energies cinetiques initiales bien inferieures a 20 eV. Cependant, il n'y a jamais eu de mesures directes demontrant l'interaction de ces electrons de tres basse energie avec l'ADN, du principalement aux difficultes experimentales imposees par la complexite du milieu biologique. Dans notre laboratoire, les dernieres annees ont ete consacrees a l'etude des phenomenes fondamentaux induits par impact des EBE sur differentes molecules simples (e.g., N2, CO, O2, H2O, NO, C2H 4, C6H6, C2H12) et quelques molecules complexes dans leur phase solide. D'autres travaux effectues recemment sur des bases de l'ADN et des oligonucleotides ont montre que les EBE produisent des bris moleculaires sur les biomolecules. Ces travaux nous ont permis d'elaborer des techniques pour mettre en evidence et comprendre les interactions fondamentales des EBE avec des molecules d'interet biologique, afin d'atteindre notre objectif majeur d'etudier l'effet direct de ces particules sur la molecule d'ADN. Les techniques de sciences des surfaces developpees et utilisees dans les etudes precitees peuvent etre etendues et combinees avec des methodes classiques de biologie pour etudier les dommages de l'ADN induits par l'impact des EBE. Nos experiences ont montre l'efficacite des electrons de 3--20 eV a induire des coupures simple et double brins dans l'ADN. Pour des energies inferieures a 15 eV, ces coupures sont induites par la localisation temporaire d'un electron sur une unite moleculaire de l'ADN, ce qui engendre la formation d'un ion negatif transitoire

  19. Que reste-t-il de la langue et de la culture grecques sur les côtes turques de la Mer Noire ?

    Directory of Open Access Journals (Sweden)

    Faruk Bilici

    2011-12-01

    Full Text Available Une mise au point sur les travaux concernant la langue et la culture pontique qui ne demandent qu’à renaître en Turquie comme en Grèce.Cet article est un premier essai socio-historique sur une langue et une culture, la langue pontique, qui ne demande qu’à renaître de ses cendres aussi bien en Turquie qu’en Grèce. Dans les deux pays en effet, les études scientifiques ont été « brouillées » par les nationalismes ambiants qui ont travesti ou dévalorisé un phénomène qui ne cadrait pas avec leurs interprétations du monde : l’existence d’une population musulmane de langue grecque. Cependant des travaux récents (et contestés en Turquie permettent de sortir de cette situation, cet article fait le point sur l’état des travaux concernant l’historiographie, la langue, la toponymie et même l’onomastique et conclut en appelant à des études pluridisciplinaires sur ce potentiel historique, linguistique et sociologique en voie de disparition.This article is an initial socio-historical investigation of a language and a culture, the Pontic language, which awaits rebirth from the ashes in Turkey as well as Greece. In both countries, scholarship has been ’scrambled’ by the nationalisms that misrepresented or devaluated a phenomenon that did not tally with their interpretation of the world: the existence of a Greek-speaking Muslim population. While some recent studies (contested in Turkey have pointed the way out of this dilemma, the present one takes stock of works on the historiography, the language, the toponomy and even the onomastics, and ultimately calls for multi-disciplinary studieson this historical, linguistic and sociological evidence, which is rapidly disappearing.

  20. Renforcement de l'influence de la recherche sur l'élaboration des ...

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

    Réflexions

    influent sur les politiques, mais de façons différentes. Le lien entre recherche et influence sur les politiques n'est ... Renforcement de l'influence de la recherche sur l'élaboration des politiques d'adaptation. PA. NOS. /G .... ceux de la CMAE ont dit avoir besoin de soutien technique. Il était malheureusement difficile pour le ...

  1. Chaire de recherche trilatérale Canada – Afrique du Sud sur les ...

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

    Le présent projet met l'accent sur les interactions entre l'humain et la faune, notamment sur les pauvres des zones rurales en pays tropical et sur l'effet des changements climatiques que ces derniers subiront. Puisant dans la recherche menée à la station de biologie expérimentale de l'Université Makere, près du parc ...

  2. Effets de six composts sur les réponses physiologiques ...

    African Journals Online (AJOL)

    Les effets de ces six composts sur le potentiel hydrique, la fuite d'électrolyte, la teneur en amidon des feuilles et sur quelques paramètres agronomiques ont été évalués sur les plantes stressées en comparaison avec les plantes témoins. Les résultats indiquent des valeurs du potentiel hydrique foliaire très faibles et une ...

  3. Débat étatsunien sur les statistiques ethno-raciales : l’exemple de la Proposition 54 en Californie

    Directory of Open Access Journals (Sweden)

    Olivier Richomme

    2011-12-01

    Full Text Available Aux États-Unis, les occasions de voir émerger un débat public sur la légitimité des classifications ethniques et/ou raciales de la population américaine sont extrêmement rares et ponctuelles. Toutefois, en 2003, lors d’un référendum d’initiative populaire, les électeurs californiens ont pu se prononcer sur la question controversée de l’utilité d’une telle classification. Cette campagne électorale, à de nombreux égards atypique, nous éclaire tout de même sur les thèmes et enjeux du débat étatsunien concernant ces statistiques et les politiques publiques qui en dépendent. Mais surtout, elle illustre les difficultés à ouvrir un débat de fond sur la question de la taxonomie ethno-raciale. Cette question, d’un intérêt politique majeur, reste marquée par de profonds clivages partisans et, même lorsque l’occasion se présente, la société américaine s’avère peu disposée à se lancer dans une véritable réflexion sur la nature de la représentation identitaire et politique engendrée par les statistiques ethno-raciales.In the U.S., public debates about the legitimacy of the classification of the American population along ethno-racial lines are quite rare. However, in 2003, voters in California had the opportunity to express their views on the necessity of this form of classification via referendum. This campaign was in many ways atypical but it still illustrates the complex and controversial nature of the debate about ethno-racial classification and the public policies relying on it. Moreover, it shows how difficult it is to launch a real political debate about ethno-racial taxonomy. This question is tangled in deep partisan divisions and, even when the opportunity presents itself, the American society seems unwilling to start any serious discussion about the very nature of the identities and the political representations created by ethno-racial statistics.

  4. Public Schools, California, 2009, California Department of Education

    Data.gov (United States)

    U.S. Environmental Protection Agency — This set of data represents the most current public schools in the State of California as of June, 2009. Information about each public school includes: school name,...

  5. Dissolved inorganic carbon, total alkalinity, pH and other variables collected from profile and discrete sample observations using CTD, Niskin bottle, and other instruments from NOAA Ship Fairweather and R/V Point Sur in the U.S. West Coast California Current System during the 2013 West Coast Ocean Acidification Cruise (WCOA2013) from 2013-08-05 to 2013-08-28 (NCEI Accession 0132082)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This archival package contains data from the third dedicated West Coast Ocean Acidification cruise (Expocode:317W20130803, Cruise ID: WCOA2013), which took place...

  6. Fast Change Point Detection for Electricity Market Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Berkeley, UC; Gu, William; Choi, Jaesik; Gu, Ming; Simon, Horst; Wu, Kesheng

    2013-08-25

    Electricity is a vital part of our daily life; therefore it is important to avoid irregularities such as the California Electricity Crisis of 2000 and 2001. In this work, we seek to predict anomalies using advanced machine learning algorithms. These algorithms are effective, but computationally expensive, especially if we plan to apply them on hourly electricity market data covering a number of years. To address this challenge, we significantly accelerate the computation of the Gaussian Process (GP) for time series data. In the context of a Change Point Detection (CPD) algorithm, we reduce its computational complexity from O($n^{5}$) to O($n^{2}$). Our efficient algorithm makes it possible to compute the Change Points using the hourly price data from the California Electricity Crisis. By comparing the detected Change Points with known events, we show that the Change Point Detection algorithm is indeed effective in detecting signals preceding major events.

  7. Invertebrate diversity in southern California

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This shapefile displays mean invertebrate diversity within 5 minute grid cells. The Shannon Index of diversity was calculated from Southern California Coastal Water...

  8. The California Fuel Tax Swap

    Science.gov (United States)

    2016-05-01

    In early 2010, California faced another of its seemingly routine budget crises, this time mostly the result of outstanding debt due on state general obligation (GO) highway and rail bonds.2 For several years, the Legislature had been diverting ...

  9. NEXRAD Rainfall Data: Eureka, California

    Data.gov (United States)

    National Aeronautics and Space Administration — Next-Generation Radar (NEXRAD) Weather Surveillance Radar 1988 (WSR-88D) measurements were used to support AMSR-E rainfall validation efforts in Eureka, California,...

  10. The California cogeneration success story

    International Nuclear Information System (INIS)

    Neiggemann, M.F.

    1992-01-01

    This chapter describes the involvement of Southern California Gas Company(SoCalGas) in the promotion and demonstration of the benefits of cogeneration in California. The topics covered in this chapter are market strategy, cogeneration program objectives, cogeneration program, incentive cofunding, special gas rate, special service priority, special gas pressure and main options, advertising, promotional brochures and handbooks, technical support, program accomplishments, cogeneration outlook, and reasons for success of the program

  11. Rapport. Sur le droit à l’appréciation critique et sur les restrictions légitimes de l’importunité de l'homosexualité

    Directory of Open Access Journals (Sweden)

    Mikhaïl N. Kouznetsov

    2011-10-01

    Full Text Available Dans le présent Rapport on entend par la notion “homosexualité” sa plus large et spécifique signification en tant que “l’ideologie de l'homosexualisme”. SOMMAIRE: Introduction - 1. Argumentation du droit à l’évaluation critique de l'homosexualité et de ses aspects sociaux - 2. Caractère agressif de l'idéologie de l'homosexualisme - 3. Atteinte cruelle et inhumaine de lésions corporelles portée à l’individu, les dommages à sa santé dans la pratique de l'homosexualité ”masculine” - 4. Sur la manipulation par les chiffres - 5.  Mythe sur la discriminations massives des homosexuels - 6. Violation des Droits de l’Homme et insulte à la dignité humaine pendant les ”gay parades” - 7. Normes de la législation étrangère, émanant de la reconnaissance par l'État des méfaits sociaux de l'homosexualité - 8. Positions juridiques de la Cour Européenne des Droits de l'Homme ayant le point d’impact sur l’élaboration des solutions à propos des questions à discuter - 9. Contradiction à ”l’Ordre public” de la Fédération de Russie des exigences d'établir des régimes juridiques privilégiés pour les homosexuels et leurs groupements et de poursuivre pour toute critique de l'homosexualité – 10. Conclusions.

  12. California Gnatcatcher Observations - 2004-2009 [ds457

    Data.gov (United States)

    California Natural Resource Agency — In southern California, the coastal California gnatcatcher (CAGN) has become both the flagship species and an umbrella species identified with conservation, where...

  13. Fire risk in California

    Science.gov (United States)

    Peterson, Seth Howard

    Fire is an integral part of ecosystems in the western United States. Decades of fire suppression have led to (unnaturally) large accumulations of fuel in some forest communities, such as the lower elevation forests of the Sierra Nevada. Urban sprawl into fire prone chaparral vegetation in southern California has put human lives at risk and the decreased fire return intervals have put the vegetation community at risk of type conversion. This research examines the factors affecting fire risk in two of the dominant landscapes in the state of California, chaparral and inland coniferous forests. Live fuel moisture (LFM) is important for fire ignition, spread rate, and intensity in chaparral. LFM maps were generated for Los Angeles County by developing and then inverting robust cross-validated regression equations from time series field data and vegetation indices (VIs) and phenological metrics from MODIS data. Fire fuels, including understory fuels which are not visible to remote sensing instruments, were mapped in Yosemite National Park using the random forests decision tree algorithm and climatic, topographic, remotely sensed, and fire history variables. Combining the disparate data sources served to improve classification accuracies. The models were inverted to produce maps of fuel models and fuel amounts, and these showed that fire fuel amounts are highest in the low elevation forests that have been most affected by fire suppression impacting the natural fire regime. Wildland fires in chaparral commonly burn in late summer or fall when LFM is near its annual low, however, the Jesusita Fire burned in early May of 2009, when LFM was still relatively high. The HFire fire spread model was used to simulate the growth of the Jesusita Fire using LFM maps derived from imagery acquired at the time of the fire and imagery acquired in late August to determine how much different the fire would have been if it had occurred later in the year. Simulated fires were 1.5 times larger

  14. Le livre sur le livre traité de documentation

    CERN Document Server

    Otlet, Paul

    2015-01-01

    Paul Otlet est considéré comme le père des sciences de l'information. Ouvrage fondateur et fondamental, le Traité de documentation. Le livre sur le livre (1934) est l'aboutissement de son travail inlassable pour rassembler, classer et partager les connaissances. Otlet y propose une remarquable synthèse du savoir sur le livre et le document en même temps qu'il anticipe Internet et l'hypertexte. La réédition du Traité de documentation, 70 ans après la disparition de son auteur, coïncide avec la réouverture du Mundaneum à Mons, où le fabuleux héritage documentaire légué par Paul Otlet et Henri La Fontaine est conservé. « Ici, la table de travail n'est plus chargée d'aucun livre. À leur place se dresse un écran et à portée un téléphone. Là-bas, au loin, dans un édifice immense, sont tous les livres et tous les renseignements. De là, on fait apparaître sur l'écran la page à lire pour connaître la réponse aux questions posées par téléphone. » Préfaces de Benoît Peeters (éc...

  15. GRABADOS RUPESTRES EN EL SUR DE LA PROVINCIA DE LUGO

    Directory of Open Access Journals (Sweden)

    Begoña González Aguiar

    2011-10-01

    Full Text Available En este artículo se plasman los resultados obtenidos tras el estudio de cincuenta estaciones rupestres ubicadas, todas ellas, en el sur de la provincia de Lugo. En un primer momento se llevaron a cabo labores de prospección y análisis de las estaciones, para su posterior estudio descriptivo, simbólico y espacial. Tales trabajos confirman la existencia de representaciones en una “zona marginada” como es la provincia de Lugo, frente a Pontevedra y A Coruña. Además, se han catalogado veinte estaciones inéditas, desconocidas hasta la fecha.

  16. sur la productivité des poulettes Effects o

    African Journals Online (AJOL)

    Au Burkina Faso, le facteur limitant dans l'alimentation des volailles est la protéine. Une étude a été menée en vue d'évaluer les effets d'une ration contenant la variété de maïs jaune « Espoir » sur les performances de croissance et de ponte chez les poulettes. Une ration contenant la variété de maïs. Espoir (ESPOIR) et ...

  17. Retour "écologique" sur la question des nitrates

    OpenAIRE

    Buson, Christian

    2012-01-01

    Un examen critique de la question des nitrates est proposé dans cet article, à la lumière des connaissances disponibles dans différentes disciplines. Au plan sanitaire, la norme sur l’eau potable établie depuis plusieurs décennies résulte d’une erreur ancienne aujourd’hui reconnue comme telle. Les nitrates n’engendrent aucun trouble sanitaire et les griefs tels que la méthémoglobinémie du nourrisson, ou le risque de cancer du à la formation de nitrosamines, qui les ont...

  18. Incidence des mesures antitabac et de la contrebande sur la ...

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

    Ils intégreront les résultats préliminaires tirés de l'enquête mondiale sur le tabagisme chez les adultes qu'ont réalisée le ministère de la Santé et l'Instituto Conmemorativo Gorgas de Estudios de la Salud en 2012. Ces données seront intégrées à une analyse de la demande plus structurée comportant des intervalles ...

  19. Zoom on India | Gros plan sur l’Inde

    Directory of Open Access Journals (Sweden)

    2012-05-01

    Full Text Available Indian Energy Production and Consumption (in Million Tonnes of Oil EquivalentProduction et consommation d’énergie en Inde (en millions de tonnes d’équivalent pétroleSource: World Bank, World Bank Development Indicators, 2010.Indian Oil, Gas and Coal Imports (in Million Tonnes of Oil Equivalent, 2008*Importations indiennes de pétrole, de gaz et de charbon (en millions de tonnes d’équivalent pétrole, 2008** 2009 for coal data | 2009 pour les données sur le charbon.Sources: British Petroleum...

  20. IMPACT DE TROIS METHODES DE CONSERVATION SUR LES ...

    African Journals Online (AJOL)

    Administrateur

    bidons stérilisés sans chaux a permis d'avoir, après 8 mois de conservation, des taux de germination de. 85 et 86 %, respectivement au .... d'harmattan et battus le quatrième jour pour l'égrenage. Les semences ainsi obtenues ont été étalées en mince couches sur des claies placées sous abris. Elles y ont été séchées en.

  1. Impact des traitements physicochimiques sur la clarte des hydrogels ...

    African Journals Online (AJOL)

    Méthodes : La préparation est réalisée selon la méthode décrite par PINGNAULT utilisant 4% (P/P) d'amidon en base sèche.Sur les gels obtenu ont été déterminés successivement l'influence de la conservation au froid (4°C) par la méthode de CRAIG, de la longueur d'onde entre 400 et 700 nm, de la concentration en ...

  2. EFFETS D'UN DEFICIT HYDRIQUE SUR CERTAINS ...

    African Journals Online (AJOL)

    AISA

    Le cotonnier est connu pour sa sensibilité au déficit hydrique. Le présent travail a été initié afin de mesurer les effets de ce facteur chez la variété STAM129A de cotonnier vulgarisée au Togo. L'étude porte sur certains paramètres tels que la hauteur des plantes, la longueur des entrenœuds, le taux de rétention des ...

  3. California State Waters Map Series—Offshore of Gaviota, California

    Science.gov (United States)

    Johnson, Samuel Y.; Dartnell, Peter; Cochrane, Guy R.; Hartwell, Stephen R.; Golden, Nadine E.; Kvitek, Rikk G.; Davenport, Clifton W.; Johnson, Samuel Y.; Cochran, Susan A.

    2018-04-20

    , gated community that has no public access.The map area has a long history of petroleum exploration and development. Several offshore gas fields were discovered and were developed by onshore directional drilling in the 1950s and 1960s. Three offshore petroleum platforms were installed in adjacent federal waters in 1976 (platform “Honda”) and 1989 (platforms “Heritage” and “Harmony”). Local offshore and onshore operations were serviced for more than a century by the Gaviota marine terminal, which is currently being decommissioned and will be abandoned in an intended transition to public open space. The Offshore of Gaviota map area lies within the western Santa Barbara Channel region of the Southern California Bight, and it is somewhat protected from large Pacific swells from the north and northwest by Point Conception and from south and southwest swells by offshore islands and banks. Much of the shoreline in the map area is characterized by narrow beaches that have thin sediment cover, backed by low (10- to 20-m-high) cliffs that are capped by a narrow coastal terrace. Beaches are subject to wave erosion during winter storms, followed by gradual sediment recovery or accretion in the late spring, summer, and fall months during the gentler wave climate.The map area lies in the western-central part of the Santa Barbara littoral cell, which is characterized by west-to-east transport of sediment from Point Arguello on the northwest to Hueneme and Mugu Canyons on the southeast. Sediment supply to the western and central part of the littoral cell is mainly from relatively small coastal watersheds. In the map area, sediment sources include Cañada de la Gaviota (52 km2), as well as Cañada de la Llegua, Arroyo el Bulito, Cañada de Santa Anita, Cañada de Alegria, Cañada del Agua Caliente, Cañada del Barro, Cañada del Leon, Cañada San Onofre, and many others. Coastal-watershed discharge and sediment load are highly variable, characterized by brief large events

  4. April 2008 Scripps Institute of Oceanography (SIO) Lidar of the Southern California Coastline: Long Beach to US/Mexico Border

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This lidar point data set collected during low tide conditions along an approximately 500-700 meter wide strip of the Southern California coastline within an area...

  5. November 2007 Scripps Institute of Oceanography (SIO) Lidar of the Southern California Coastline: Long Beach to US/Mexico Border

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This lidar point data set was collected during low tide conditions along an approximately 500-700 meter wide strip of the Southern California coastline within an...

  6. September 2008 Scripps Institute of Oceanography (SIO) Lidar of the Southern California Coastline: Long Beach to US/Mexico Border

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This lidar point data set was collected during low tide conditions along an approximately 500-700 meter wide strip of the Southern California coastline within an...

  7. March 2009 Scripps Institute of Oceanography (SIO) Lidar of the Southern California Coastline: Long Beach to US/Mexico Border

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This lidar point data set was collected during low tide conditions along an approximately 500-700 meter wide strip of the Southern California coastline within an...

  8. Climate scenarios for California

    Science.gov (United States)

    Cayan, Daniel R.; Maurer, Ed; Dettinger, Mike; Tyree, Mary; Hayhoe, Katharine; Bonfils, Celine; Duffy, Phil; Santer, Ben

    2006-01-01

    Possible future climate changes in California are investigated from a varied set of climate change model simulations. These simulations, conducted by three state-of-the-art global climate models, provide trajectories from three greenhouse gas (GHG) emission scenarios. These scenarios and the resulting climate simulations are not “predictions,” but rather are a limited sample from among the many plausible pathways that may affect California’s climate. Future GHG concentrations are uncertain because they depend on future social, political, and technological pathways, and thus the IPCC has produced four “families” of emission scenarios. To explore some of these uncertainties, emissions scenarios A2 (a medium-high emissions) and B1 (low emissions) were selected from the current IPCC Fourth climate assessment, which provides several recent model simulations driven by A2 and B1 emissions. The global climate model simulations addressed here were from PCM1, the Parallel Climate Model from the National Center for Atmospheric Research (NCAR) and U.S. Department of Energy (DOE) group, and CM2.1 from the National Oceanic and Atmospheric Administration (NOAA) Geophysical Fluids Dynamics Laboratory (GFDL).

  9. California State Waters Map Series: offshore of Half Moon Bay, California

    Science.gov (United States)

    Cochrane, Guy R.; Dartnell, Peter; Greene, H. Gary; Johnson, Samuel Y.; Golden, Nadine E.; Hartwell, Stephen R.; Dieter, Bryan E.; Manson, Michael W.; Sliter, Ray W.; Ross, Stephanie L.; Watt, Janet T.; Endris, Charles A.; Kvitek, Rikk G.; Phillips, Eleyne L.; Erdey, Mercedes D.; Chin, John L.; Bretz, Carrie K.

    2014-01-01

    In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of swath sonar data, acoustic backscatter, seafloor video, seafloor photography, high-resolution seismic-reflection profiles, and bottom-sediment sampling data. The map products display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow (to about 100 m) subsurface geology. The Offshore of Half Moon Bay map area is located in northern California, on the Pacific coast of the San Francisco Peninsula about 40 kilometers south of the Golden Gate. The city of Half Moon Bay, which is situated on the east side of the Half Moon Bay embayment, is the nearest significant onshore cultural center in the map area, with a population of about 11,000. The Pillar Point Harbor at the north edge of Half Moon Bay offers a protected landing for boats and provides other marine infrastructure. The map area lies offshore of the Santa Cruz Mountains, part of the northwest-trending Coast Ranges that run roughly parallel to the San Andreas Fault Zone. The Santa Cruz Mountains lie between the San Andreas Fault Zone and the San Gregorio Fault system. The flat coastal area, which is the most recent of numerous marine terraces, was formed by wave erosion about 105 thousand years ago. The higher elevation of this same terrace west of the Half Moon Bay Airport is caused by uplift on the Seal Cove Fault, a splay of the San Gregorio Fault Zone. Although originally incised into the rising terrain horizontally, the ancient terrace surface has been gently folded into a northwest-plunging syncline by

  10. Etude des répercussions de la pollution industrielle sur la riziculture ...

    African Journals Online (AJOL)

    Les industries spécialisées dans le textile déversent leurs eaux usées dans le ... sur les sols, les compositions chimiques des plants de riz et sur la production. ... The effluents quality varies on day, the pH from 3.9 to 10.6 and the electrical ...

  11. Renforcement des capacités de recherche sur les TIC-D au Moyen ...

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

    La recherche sur les incidences et les impacts des technologies de l'information et de la communication (TIC) sur le développement social et humain est embryonnaire au Moyen-Orient et en Afrique du Nord (région MOAN). Ce projet vise à encourager les chercheurs de la région MOAN à entreprendre des recherches ...

  12. Rapport annuel au Parlement Loi sur l'accès à l'information Centre ...

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

    leonardi

    accès à l'information. Source. Nombre de demandes. 0. Médias. 1. Rapport statistique sur la Loi sur l'accès à l'information. Nom de l'institution : Centre de recherches pour le développement international. Période visée par le ...

  13. Effets de l'audit clinique basé sur des critères sur de la qualité de la ...

    African Journals Online (AJOL)

    Effets de l'audit clinique basé sur des critères sur de la qualité de la prise en charge de la prééclampsie sévère dans le Département de Gynécologie Obstétrique du Centre Hospitalier Universitaire Yalgado Ouédraogo, Ouagadougou (Burkina Faso). Sibraogo Kiemtoré, Adama Dembélé, Adama Ouattara, Hyacinthe1,2 ...

  14. SurR9C84A protects and recovers human cardiomyocytes from hypoxia induced apoptosis

    Energy Technology Data Exchange (ETDEWEB)

    Ashok, Ajay [Nanomedicine-Laboratory of Immunology and Molecular Biomedical Research (NLIMBR), School of Medicine (SoM), Faculty of Health, Centre for Molecular and Medical Research - C-MMR, Deakin University, Waurn Ponds, Victoria 3216 (Australia); Department of Pathology, Case Western Reserve University, 2103 Cornell Rd. WRB 5128, Cleveland, OH 44106-7288 (United States); Kanwar, Jagat Rakesh [Nanomedicine-Laboratory of Immunology and Molecular Biomedical Research (NLIMBR), School of Medicine (SoM), Faculty of Health, Centre for Molecular and Medical Research - C-MMR, Deakin University, Waurn Ponds, Victoria 3216 (Australia); Krishnan, Uma Maheswari [Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), School of Chemical & Biotechnology (SCBT), SASTRA University, Thanjavur 613401 (India); Kanwar, Rupinder Kaur, E-mail: rupinder.kanwar@deakin.edu.au [Nanomedicine-Laboratory of Immunology and Molecular Biomedical Research (NLIMBR), School of Medicine (SoM), Faculty of Health, Centre for Molecular and Medical Research - C-MMR, Deakin University, Waurn Ponds, Victoria 3216 (Australia)

    2017-01-01

    Survivin, as an anti-apoptotic protein and a cell cycle regulator, is recently gaining importance for its regenerative potential in salvaging injured hypoxic cells of vital organs such as heart. Different strategies are being employed to upregulate survivin expression in dying hypoxic cardiomyocytes. We investigated the cardioprotective potential of a cell permeable survivin mutant protein SurR9C84A, for the management of hypoxia mediated cardiomyocyte apoptosis, in a novel and clinically relevant model employing primary human cardiomyocytes (HCM). The aim of this research work was to study the efficacy and mechanism of SurR9C84A facilitated cardioprotection and regeneration in hypoxic HCM. To mimic hypoxic microenvironment in vitro, well characterized HCM were treated with 100 µm (48 h) cobalt chloride to induce hypoxia. Hypoxia induced (HI) HCM were further treated with SurR9C84A (1 µg/mL) in order to analyse its cardioprotective efficacy. Confocal microscopy showed rapid internalization of SurR9C84A and scanning electron microscopy revealed the reinstatement of cytoskeleton projections in HI HCM. SurR9C84A treatment increased cell viability, reduced cell death via, apoptosis (Annexin-V assay), and downregulated free cardiac troponin T and MMP-9 expression. SurR9C84A also upregulated the expression of proliferation markers (PCNA and Ki-67) and downregulated mitochondrial depolarization and ROS levels thereby, impeding cell death. Human Apoptosis Array further revealed that SurR9C84A downregulated expression of pro-apoptotic markers and augmented expression of HSPs and HTRA2/Omi. SurR9C84A treatment led to enhanced levels of survivin, VEGF, PI3K and pAkt. SurR9C84A proved non-toxic to normoxic HCM, as validated through unaltered cell proliferation and other marker levels. Its pre-treatment exhibited lesser susceptibility to hypoxia/damage. SurR9C84A holds a promising clinical potential for human cardiomyocyte survival and proliferation following hypoxic injury

  15. Retour d'expérience sur la co-construction d'un guide sur la gouvernance territoriale

    OpenAIRE

    Maurel, P.; Barbe, E.; Rey-Valette, H.; Chia, E.; Soulard, C.; Michel, L.; Pinto, M.

    2014-01-01

    / La gouvernance territoriale est devenue un enjeu majeur et une question centrale pour la mise en oeuvre des politiques publiques. Dans le cadre du programme de recherche en partenariat PSDR, un collectif hybride composé de chercheurs, de professionnels du développement territorial et d'acteurs locaux s'est réuni au sein du projet Gouv.Innov. En s'appuyant sur plusieurs terrains d'étude, ce collectif a progressivement construit une définition de la gouvernance territoriale ainsi qu'une grill...

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

    Science.gov (United States)

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

    1984-01-01

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

  17. DECISIONS ET COMPETITIVITE SUR LE MARCHE UNIQUE EUROPEEN

    Directory of Open Access Journals (Sweden)

    Sirghi Nicoleta

    2008-05-01

    Full Text Available L’un des traits importants du marché unique européen, a comme source le męme énoncé du principal objectif de l’intégration européenne ainsi que: l’harmonisation des niveaux du développement des Etats Membres et l’augmentation du niveau de vie dans l’ensemble de la communauté. Pour le marché unique européen, cet aspect se traduit par une permanente et soutenue augmentation de la demande. Cet ouvrage présente au début une analyse des éléments spécifiques du marché européen. Ensuite on identifie les opportunités et les risques au niveau macroéconomique adjointes aux perspectives du marché unique européen. Comme fondement on présente des stratégies du développement réalisables au niveau microéconomique que puissent assurer l’augmentation du niveau sur la compétitivité des sociétés sur le marché unique européen.

  18. New tectonic data constrain the mechanisms of breakup along the Gulf of California

    Science.gov (United States)

    Bot, Anna; Geoffroy, Laurent; Authemayou, Christine; Graindorge, David

    2014-05-01

    The Gulf of California is resulting from an oblique-rift system due to the separation of the Pacific and the North American plates in the ~N110E to ~N125E trend. The age, nature and orientation of strain which ended with continental break-up and incipient oceanization at ~3.6 Ma, is largely misunderstood. It is generally proposed that early stages of extension began at around 12 Ma with strain partitioning into two components: a pure ENE directed extension in the Gulf Extensional Province (which includes Sonora and the eastern Baja California Peninsula in Mexico) and a dextral strike-slip displacement west of the Baja California Peninsula along the San Benito and Tosco-Abreojos faults. This evolution would have lasted ~5-6 Ma when a new transtensional strain regime took place. This regime, with extension trending ~N110E +/-10° , led to the final break-up and the subsequent individualization of a transform-fault system and subordoned short oceanic ridges. This two-steps interpretation has recently been challenged by authors suggesting a continuous transtensional extension from 12Ma in the trend of the PAC-NAM plates Kinematic. We question both of those models in term of timing and mode of accommodation basing ourselves on field investigations in Baja California Sur (Mexico). The volcano-sedimentary formations of the Comondù group dated 25 to 20 Ma exhibit clear examples of syn-sedimentary and syn-magmatic extensive deformations. This extension, oriented N65° E+/-15° , is proposed to initiate during the Magdalena Plate subduction. It would be related to the GOC initialization. In addition to this finding, we present tectonic and dating evidences of complex detachment-faulting tectonics varying in trend and kinematics with time and space for the development to the south of Baja California Sur. The extension associated with the early detachment-fault system trended ~N110E. From ~17 Ma to, probably, ~7-8 Ma, this extension controlled the early development of the San

  19. Características, referentes y líneas maestras de la crítica literaria realizada en Cuadernos del Sur

    Directory of Open Access Journals (Sweden)

    Rodríguez Jiménez, Antonio

    2015-12-01

    Full Text Available This article approaches the features, references points and lines of literary criticism expressed in the literary supplement Cuadernos del Sur. The work constant in the literary field provided a critical authority and subsequently independence in the quality of the works studied. It shows how the gamble of criticism was continuous and strong to the dissemination of culture. It covers discussions and debates about literary criticism between 1986 and 2008. It explains how Cuadernos del Sur has been a guide to enlighten readers by the tangled jungle of the manifestations of thought, especially in the world of books, with a critical view of aesthetic approaches freely when prosecuting the literary work. It analyzes how Cuadernos del Sur it marks a path of dialogue and turns into platform of expression of critics and authors.Este artículo aborda las características, los referentes y las líneas maestras de la crítica literaria desarrollada en el suplemento literario Cuadernos del Sur. La constancia en el terreno crítico aportó una autoridad que posteriormente generó independencia en la calidad de las obras estudiadas. Se muestra cómo la apuesta crítica fue constante y de firme compromiso con la difusión de la cultura. Se abordan discusiones y debates en torno a la crítica desarrollada entre 1986 y 2008. Se explica cómo Cuadernos del Sur ha sido una guía para iluminar a los lectores por la intrincada selva de las manifestaciones del pensamiento, sobre todo por el mundo de los libros, que ha realizado una visión crítica con libertad de planteamientos estéticos a la hora de enjuiciar la obra literaria. Se analiza cómo Cuadernos del Sur marca un camino de diálogo y se convierte en tribuna abierta de expresión de críticos y autores.

  20. California State Waters Map Series—Offshore of Santa Cruz, California

    Science.gov (United States)

    Cochrane, Guy R.; Dartnell, Peter; Johnson, Samuel Y.; Erdey, Mercedes D.; Golden, Nadine E.; Greene, H. Gary; Dieter, Bryan E.; Hartwell, Stephen R.; Ritchie, Andrew C.; Finlayson, David P.; Endris, Charles A.; Watt, Janet T.; Davenport, Clifton W.; Sliter, Ray W.; Maier, Katherine L.; Krigsman, Lisa M.; Cochrane, Guy R.; Cochran, Susan A.

    2016-03-24

    IntroductionIn 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of swath sonar data, acoustic backscatter, seafloor video, seafloor photography, high-resolution seismic-reflection profiles, and bottom-sediment sampling data. The map products display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow subsurface geology.The Offshore of Santa Cruz map area is located in central California, on the Pacific Coast about 98 km south of San Francisco. The city of Santa Cruz (population, about 63,000), the largest incorporated city in the map area and the county seat of Santa Cruz County, lies on uplifted marine terraces between the shoreline and the northwest-trending Santa Cruz Mountains, part of California’s Coast Ranges. All of California’s State Waters in the map area is part of the Monterey Bay National Marine Sanctuary.The map area is cut by an offshore section of the San Gregorio Fault Zone, and it lies about 20 kilometers southwest of the San Andreas Fault Zone. Regional folding and uplift along the coast has been attributed to a westward bend in the San Andreas Fault Zone and to right-lateral movement along the San Gregorio Fault Zone. Most of the coastal zone is characterized by low, rocky cliffs and sparse, small pocket beaches backed by low, terraced hills. Point Santa Cruz, which forms the north edge of Monterey Bay, provides protection for the beaches in the easternmost part of the map area by sheltering them from the predominantly northwesterly waves.The shelf in the map area is underlain by variable amounts (0 to 25 m) of

  1. Point-source inversion techniques

    Science.gov (United States)

    Langston, Charles A.; Barker, Jeffrey S.; Pavlin, Gregory B.

    1982-11-01

    A variety of approaches for obtaining source parameters from waveform data using moment-tensor or dislocation point source models have been investigated and applied to long-period body and surface waves from several earthquakes. Generalized inversion techniques have been applied to data for long-period teleseismic body waves to obtain the orientation, time function and depth of the 1978 Thessaloniki, Greece, event, of the 1971 San Fernando event, and of several events associated with the 1963 induced seismicity sequence at Kariba, Africa. The generalized inversion technique and a systematic grid testing technique have also been used to place meaningful constraints on mechanisms determined from very sparse data sets; a single station with high-quality three-component waveform data is often sufficient to discriminate faulting type (e.g., strike-slip, etc.). Sparse data sets for several recent California earthquakes, for a small regional event associated with the Koyna, India, reservoir, and for several events at the Kariba reservoir have been investigated in this way. Although linearized inversion techniques using the moment-tensor model are often robust, even for sparse data sets, there are instances where the simplifying assumption of a single point source is inadequate to model the data successfully. Numerical experiments utilizing synthetic data and actual data for the 1971 San Fernando earthquake graphically demonstrate that severe problems may be encountered if source finiteness effects are ignored. These techniques are generally applicable to on-line processing of high-quality digital data, but source complexity and inadequacy of the assumed Green's functions are major problems which are yet to be fully addressed.

  2. Commentaires à propos de la loi française sur le harcèlement moral au travail

    Directory of Open Access Journals (Sweden)

    Marie-France Hirigoyen

    2005-11-01

    Full Text Available Les auteurs montreront comment en France, à partir d’une simple description de la souffrance engendrée par le harcèlement, on a aboutit rapidement à une loi sanctionnant ce fléau, puis ils feront le point sur les jurisprudences et sur l’évolution des comportements entraînés par cette loi et enfin, ils proposeront des axes de recherches et des pistes d’amélioration des dispositions législatives existantes.The authors will show how in France, starting with a simple description of the suffering caused by harassment, a law punishing this wrong was quickly arrived at. They will then summarize the jurisprudence and the evolution of the behaviours resulting from this law, and finally, they will propose research orientations and possibilities for improving the existing legislation.Los autores muestran cómo en Francia, a partir de una simple descripción del sufrimiento engendrado por el acoso, se llegó rápidamente a una ley que sanciona esta plaga. Los autores presentan luego, una síntesis de las jurisprudencias y de la evolución de los comportamientos que esta ley produjo y finalmente, proponen ejes de investigación y pistas para el mejoramiento de las disposiciones legislativas existentes.

  3. Energy and climate change: the main analyses of Regards sur la Terre. An annual publication on sustainable development

    International Nuclear Information System (INIS)

    Jacquet, P.; Tubiana, L.; Colombier, Michel; Loup, Jacques; Laponche, Bernard; Martin-Amouroux, Jean-Marie; Chateau, Bertrand; Kieken, Hubert; Kleiche, Mustapha; Heller, Thomas C.; Mathy, Sandrine; Hourcade, Jean-Charles; Goldemberg, Jose; Pizer, William A.

    2007-01-01

    In November 2006, the French Development Agency, AFD (Agence francaise de developpement) and the Institute for Sustainable Development and International Relations, IDDRI (Institut du developpement durable et des relations internationales) launched an annual publication on sustainable development in a global perspective, Regards sur la Terre, published by Les Presses de Sciences Po (Paris). Regards sur la Terre includes an analysis of the most important international events of the last twelve months in the field of sustainable development, along with a thematic section, which in the first edition focused on energy and climate change. This booklet presents the overall introduction of the 2007 publication and the introduction of its thematic section, as well as a selection of the main chapters dealing with the theme of energy and climate change. Contents: Awakening and crisis of confidence; Reorienting our Societies; Energy in the world: Challenges and prospects; Challenges and constraints for energy supply: The coal hard facts; Satisfying energy growth in emerging countries; Diversifying power generation in China; From Rio to Marrakech: Development in climate negotiations; An international coordination regime come what may; The perspective of developing countries; An American 'point of view'

  4. Measuring ecological function on California's rangelands

    Science.gov (United States)

    Porzig, E.

    2016-12-01

    There is a need for a better understanding of ecosystem processes on rangelands and how management decisions influence these processes on scales that are both ecologically and socially relevant. Point Blue Conservation Science's Rangeland Monitoring Network is a coordinated effort to collect standardized data on birds, vegetation, and soils on rangelands throughout California. We work with partners, including private landowners, land trusts, state and federal agencies, and others, to measure bird and plant abundance and diversity and three soil dynamic properties (water infiltration, bulk density, and organic carbon). Here, we present data from our first two years of monitoring on over 50 ranches in 17 counties. By collecting data on the scope and scale of variation in ecological function across rangelands and the relationship with management practices, we aim to advance rangeland management, restoration, and conservation.

  5. California State Waters Map Series: offshore of San Francisco, California

    Science.gov (United States)

    Cochrane, Guy R.; Johnson, Samuel Y.; Dartnell, Peter; Greene, H. Gary; Erdey, Mercedes D.; Golden, Nadine E.; Hartwell, Stephen R.; Endris, Charles A.; Manson, Michael W.; Sliter, Ray W.; Kvitek, Rikk G.; Watt, Janet Tilden; Ross, Stephanie L.; Bruns, Terry R.; Cochrane, Guy R.; Cochran, Susan A.

    2015-01-01

    In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of swath sonar data, acoustic backscatter, seafloor video, seafloor photography, high-resolution seismic-reflection profiles, and bottom-sediment sampling data. The map products display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow (to about 100 m) subsurface geology.

  6. California State Waters Map Series: offshore of Refugio Beach, California

    Science.gov (United States)

    Johnson, Samuel Y.; Dartnell, Peter; Cochrane, Guy R.; Golden, Nadine E.; Phillips, Eleyne L.; Ritchie, Andrew C.; Krigsman, Lisa M.; Dieter, Bryan E.; Conrad, James E.; Greene, H. Gary; Seitz, Gordon G.; Endris, Charles A.; Sliter, Ray W.; Wong, Florence L.; Erdey, Mercedes D.; Gutierrez, Carlos I.; Yoklavich, Mary M.; East, Amy E.; Hart, Patrick E.; Johnson, Samuel Y.; Cochran, Susan A.

    2015-01-01

    In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of swath sonar data, acoustic backscatter, seafloor video, seafloor photography, high-resolution seismic-reflection profiles, and bottom-sediment sampling data. The map products display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow (to about 100 m) subsurface geology.

  7. California State Waters Map Series: offshore of Pacifica, California

    Science.gov (United States)

    Edwards, Brian D.; Phillips, Eleyne L.; Dartnell, Peter; Greene, H. Gary; Bretz, Carrie K.; Kvitek, Rikk G.; Hartwell, Stephen R.; Johnson, Samuel Y.; Cochrane, Guy R.; Dieter, Bryan E.; Sliter, Ray W.; Ross, Stephanie L.; Golden, Nadine E.; Watt, Janet Tilden; Chinn, John L.; Erdey, Mercedes D.; Krigsman, Lisa M.; Manson, Michael W.; Endris, Charles A.; Cochran, Susan A.; Edwards, Brian D.

    2015-01-01

    In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of swath sonar data, acoustic backscatter, seafloor video, seafloor photography, high-resolution seismic-reflection profiles, and bottom-sediment sampling data. The map products display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow (to about 100 m) subsurface geology. 

  8. Synthesis of gravity, magnetic and thermal studies at the Las Tres Virgenes geothermal zone, Baja California Sur, Mexico. Sintesis de los estudios de gravimetria, magnetometria y termometria en la zona geotermica de Las Tres Virgenes, Baja California Sur, Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Garcia Estrada, Gerardo (Departamento de Exploracion, Gerencia de Proyectos Geotermoelectricos de la Comision Federal de Electricidad, Morelia (Mexico)); Gonzalez Lopez, Macario (Residencia General de Cerro Prieto, Mexicali (Mexico))

    1998-01-15

    Las Tres Virgenes geothermal zone is located in the NE-SW central sector of a sigmoidal basin that regionally has a NW-SE trend. In the local deepest zone there is a NE-SE granodioritic basement horst acting as hydrologic barrier, that makes the fluids flow up. After moving in a direction parallel to the local horst, waters continue its regional SE-NW movement controlled by regional tectonics. The flanks of the granodioritic basement horst, and local N-S faulting act as fluid paths in the hydrothermal zone, but regional NW-SE regional faults determine the general flow direction. Both regional and local tectonics show magnetic evidences of the emplacement of magmatic bodies of intermediate to basic composition. Those along NW-SE trends are more noticeable but we consider they are not the present day heat source. Intermediate magmatism along NE-SW local trend seems to be less extensive but it is younger, so, we consider it constitutes the heat source of the hydrothermal system. Thermal data suggest that the heat source is located below the volcanic chain toward the S or SW of the wells, phenomena related with the general displacement of magmatism from NE to SW along the volcanic chain. However, recent intensive faulting permits a higher permeability in the northern sector in which there are slightly smaller temperatures but at shallower depths and with higher flow rates.

  9. En California dos pioneros: Uno en el pasado y otro en el presente

    Directory of Open Access Journals (Sweden)

    Mauricio Bermúdez

    2002-11-01

    Full Text Available Agost on Haraszthy buscando un clima para alivio de su enfermedad arribó en 1849 al sur de California donde se convirtió en el pionero al importar, sembrar y producir vino con Zinfandel, una entre otras muchas vides europeas. Construyó el viñedo Buena Vista diseñado para esa época con las mejores facilidades, no obstante, la empresa estaba destinada al colapso financiero por el incumplimiento del Estado de California; la vida de Agost on fue una aventura y tras su muerte una leyenda. En 1976 Peter Haywood decide cambiar su vida dedicada a las finanzas, deja Nueva York y viaja a California, allí compra un terreno para adecuarlo como viñedo; en 1980 obtiene su primera producción comercial y gracias a la fuerte demanda se vio obligado a incrementar su producción. El Zinfandel producido en el viñedo los Chamizales de la casa Haywood ha sido galardonado y declarado como el mejor. ¿Cuáles serán las caracte-rísticas del vino para lograr esa gran acogida?

  10. Wind Energy Assessment for Small Urban Communities in the Baja California Peninsula, Mexico

    Directory of Open Access Journals (Sweden)

    Quetzalcoatl Hernandez-Escobedo

    2016-10-01

    Full Text Available Mexico needs to exploit its renewable resources and many studies have determined the great renewable potential it has using wind energy. However it is necessary to calculate the amount of this resource for small urban communities, which in this country lack essential services such as electricity. This study is focused in the Baja California Peninsula, using GIS as a tool to identify small urban zones with higher wind power. For this work data was analyzed from meteorological stations and recorded every 10 min for two years (2012–2014. Weibull distribution, linear regression, kriging interpolation, power and energy output and useful hours were calculated for each station. It was found that the total energy generated is 38,603,666 kWh per year and the mean of useful hours is 5220 h per year for the whole Peninsula. Maps of Wind Power Density (WPD show a good power per square meter, GIS shows the areas with the most wind power where it can be used i.e., the state of Baja California wind power can generate electricity for 12% of those communities, meanwhile for Baja California Sur, the electric power generation could electrify almost 25% of the total of small urban communities.

  11. The End of Points

    Science.gov (United States)

    Feldman, Jo

    2018-01-01

    Have teachers become too dependent on points? This article explores educators' dependency on their points systems, and the ways that points can distract teachers from really analyzing students' capabilities and achievements. Feldman argues that using a more subjective grading system can help illuminate crucial information about students and what…

  12. Demerit points systems.

    NARCIS (Netherlands)

    2006-01-01

    In 2012, 21 of the 27 EU Member States had some form of demerit points system. In theory, demerit points systems contribute to road safety through three mechanisms: 1) prevention of unsafe behaviour through the risk of receiving penalty points, 2) selection and suspension of the most frequent

  13. California Geological Survey Geologic Map Index

    Data.gov (United States)

    California Natural Resource Agency — All the individual maps from the Geologic Atlas of California and the Regional Geologic map series have been georeferenced for display in a GIS (and viewable online...

  14. Teale Urband and rural areas of California

    Data.gov (United States)

    California Natural Resource Agency — California Spatial Information System (CaSIL) is a project designed to improve access to geo-spatial and geo-spatial related data information throughout the state of...

  15. Missing Linkages in California's Landscape [ds420

    Data.gov (United States)

    California Natural Resource Agency — The critical need for conserving landscape linkages first came to the forefront of conservation thinking in California in November 2000, when a statewide interagency...

  16. Teale California Office of Emergency Services

    Data.gov (United States)

    California Department of Resources — California Spatial Information System (CaSIL) is a project designed to improve access to geo-spatial and geo-spatial related data information throughout the state of...

  17. Teale California Office of Emergency Services

    Data.gov (United States)

    California Natural Resource Agency — California Spatial Information System (CaSIL) is a project designed to improve access to geo-spatial and geo-spatial related data information throughout the state of...

  18. Missing Linkages in California's Landscape [ds420

    Data.gov (United States)

    California Department of Resources — The critical need for conserving landscape linkages first came to the forefront of conservation thinking in California in November 2000, when a statewide interagency...

  19. Point specificity in acupuncture

    Directory of Open Access Journals (Sweden)

    Choi Emma M

    2012-02-01

    Full Text Available Abstract The existence of point specificity in acupuncture is controversial, because many acupuncture studies using this principle to select control points have found that sham acupoints have similar effects to those of verum acupoints. Furthermore, the results of pain-related studies based on visual analogue scales have not supported the concept of point specificity. In contrast, hemodynamic, functional magnetic resonance imaging and neurophysiological studies evaluating the responses to stimulation of multiple points on the body surface have shown that point-specific actions are present. This review article focuses on clinical and laboratory studies supporting the existence of point specificity in acupuncture and also addresses studies that do not support this concept. Further research is needed to elucidate the point-specific actions of acupuncture.

  20. California Hydrogen Infrastructure Project

    Energy Technology Data Exchange (ETDEWEB)

    Heydorn, Edward C

    2013-03-12

    Air Products and Chemicals, Inc. has completed a comprehensive, multiyear project to demonstrate a hydrogen infrastructure in California. The specific primary objective of the project was to demonstrate a model of a real-world retail hydrogen infrastructure and acquire sufficient data within the project to assess the feasibility of achieving the nation's hydrogen infrastructure goals. The project helped to advance hydrogen station technology, including the vehicle-to-station fueling interface, through consumer experiences and feedback. By encompassing a variety of fuel cell vehicles, customer profiles and fueling experiences, this project was able to obtain a complete portrait of real market needs. The project also opened its stations to other qualified vehicle providers at the appropriate time to promote widespread use and gain even broader public understanding of a hydrogen infrastructure. The project engaged major energy companies to provide a fueling experience similar to traditional gasoline station sites to foster public acceptance of hydrogen. Work over the course of the project was focused in multiple areas. With respect to the equipment needed, technical design specifications (including both safety and operational considerations) were written, reviewed, and finalized. After finalizing individual equipment designs, complete station designs were started including process flow diagrams and systems safety reviews. Material quotes were obtained, and in some cases, depending on the project status and the lead time, equipment was placed on order and fabrication began. Consideration was given for expected vehicle usage and station capacity, standard features needed, and the ability to upgrade the station at a later date. In parallel with work on the equipment, discussions were started with various vehicle manufacturers to identify vehicle demand (short- and long-term needs). Discussions included identifying potential areas most suited for hydrogen fueling

  1. Baja California: literatura y frontera

    Directory of Open Access Journals (Sweden)

    Gabriel Trujillo Muñoz

    2014-06-01

    Baja California is a region that not only has migration problems and criminal violence because of the war of drugs or is a space of border conflicts in close neighborhood with the United States of America. Baja California is too a geographic space of culture and art, of creative writing and struggle to narrate the things and persons that here live, a plain sight, like their house, like their home, like a center of creation. This text give a cultural context of the border literature in the north of Mexico like a phenomenon in notice because his own merits, books and writers.

  2. Mixed carbonate-siliciclastic sedimentation on a tectonically active margin: Example from the Pliocene of Baja California Sur, Mexico

    Science.gov (United States)

    Dorsey, Rebecca J.; Kidwell, Susan M.

    1999-10-01

    Bioclast-rich, coarse-grained deposits in the Pliocene Loreto basin provide a record of mixed carbonate and siliciclastic sedimentation at the steep hanging-wall margin of this small, fault-controlled basin. Sedimentary facies consist of sand- to gravel-sized carbonate debris mixed with volcaniclastic sand and gravel in a proximal to distal facies tract that includes matrix-rich and matrix-poor shelly conglomerate, impure calcirudite and calcarenite, mixed-composition turbidites, and bioturbated calcarenitic sandstone. Carbonate material was produced by mollusks and other benthic organisms on a narrow, high-energy shelf and mixed with volcaniclastic sand and gravel in cross-shelf channels. These mixtures were transported down a steep subaqueous slope by debris flows, grain flows, and turbidity currents, forming foresets and bottomsets of marine Gilbert-type deltas. This style of mixed carbonate-siliciclastic sedimentation has not been documented in detail elsewhere but should be locally abundant in the stratigraphic record of fault-bounded basins, particularly those with cool or nutrient-rich waters that support relatively few binding and framework-building faunas. Recognition of similar facies in other settings can provide useful insights into ancient conditions of carbonate production, oceanography, climate, and tectonics.

  3. IDENTIFICATION AND CHARACTERIZATION OF Eimeria spp. DURING EARLY NATURAL INFECTION IN GOAT KIDS IN BAJA CALIFORNIA SUR, MEXICO

    Directory of Open Access Journals (Sweden)

    Ramón Cepeda-Palacios

    2015-12-01

    Full Text Available The aim of this study was to characterize the natural infection by Eimeria spp. in goat kids, and to describe some pathophysiological responses to eimerosis in kids under intensive rearing conditions in B.C.S, Mexico. Nineteen adult crossbred does naturally infected with mixed Eimeria spp. and 20 Anglo Nubian x Creole crossbred kids were used. Oocyst per gram of feces (OPG and identification of Eimeria species were determined in does (during the pre-kidding and post-kidding periods and kids. Clinical signs, hematocrit, hemoglobin and alkaline phosphatase activity in blood serum were evaluated. OPG (mean±SD was significantly higher (P<0.05 in pre-kidding (9,478±7,599 than in post-kidding (5,313±2,909 period. Oocyst elimination in feces began at age 59±9 days in kids. Eimerian species identified were E. arloingi, E. jolchijevi, E. ninakohlyakimovae, E. hirci, E. christenseni and E. alijevi. Kids were humanely sacrificed to evaluate pathological lesions. Intestinal lesions and lesion severity showed differences in duodenum, jejunum, ileum, cecum and colon, being more severe in duodenum. In conclusion, OPG increased during the late pregnancy in does which favored a doe-kid transmission mechanism. Our results support the notion of Eimeria reproduction rhythms during the late pregnancy period in goats, and this reproduction contribute to vertical transmission of Eimeria to the newborn. However, coccidian outbreaks are developed and clinically observed only when stressing factors such as when weaning occur. Coccidia had devastating effects on the intestine of kids, which might cause long-term permanent malabsortion consequences. Â

  4. General characteristics of the diet of Trachinotus paitensis (Teleostei: Carangidae from San Ignacio Lagoon, Baja California Sur, Mexico

    Directory of Open Access Journals (Sweden)

    V.H. Cruz Escalona

    2004-03-01

    Full Text Available The food habits of Trachinotus paitensis, in San Ignacio Lagoon B.C.S., Mexico, were investigated. We observed that T. paitensis is carnivorous, feeding mainly on benthic invertebrates (the gastropods Anachis spp., Bittium spp., and the crustacean larvae. We concluded that T. paitensis is an opportunist predator that impacts mainly on epibenthic invertebratesFueron investigados los hábitos alimenticios de Trachinotus paitensis, en la laguna San Ignacio B.C.S., México. Se observó que T. paitensis es carnívoro, y se alimenta principalmente de invertebrados bénticos (los gastrópodos Anachis spp., Bittium spp., y larvas de crustáceos. En conclusión esta especie es un depredador oportunista que tiene un impacto principalmente sobre las poblaciones de invertebrados epibénticos

  5. Arsenic Concentration in the Surface Water of a Former Mining Area: The La Junta Creek, Baja California Sur, Mexico

    Science.gov (United States)

    Imaz Lamadrid, Miguel; Acosta Vargas, Baudilio

    2018-01-01

    The mining activity in the San Antonio-El Triunfo district, located in a mountainous region at 60 km southeast of La Paz, occured for more than 250 years and left behind severe contamination of soils and riverbed sediments which led to elevated concentrations of arsenic and other trace elements in the surface- and groundwater of the region. Although the main mining activity ended around 1911, contamination is still beeing distributed, especially from left behind tailings and mine waste piles. The contamination levels in the groundwater have been reported in several studies, but there is little information available on the surface water quality, and especially the temporal variation. In this study, we analyzed the surface water of the La Junta creek, in the southern part of the San Antonio-El Triunfo mining district. The working hypothesis was that by means of a spatial analysis of surface water and shallow groundwater, in combination with the temporal observation of the concentrations in runoff water, the effects of different sources of arsenic (natural geogene anomalies, due to historic mining activity, and hydrothermal related impact) in the La Junta creek can be recognized. This present study revealed that historic mining activity caused a mojor impact of arsenic but less contamination was observed than in the northern part of the district and elevated arsenic concentrations in stream water generally occurred during times of low streamflow. PMID:29498700

  6. General characteristics of the diet of Trachinotus paitensis (Teleostei: Carangidae) from San Ignacio Lagoon, Baja California Sur, Mexico.

    Science.gov (United States)

    Cruz Escalona, V H; Abitia Cárdenas, L A

    2004-03-01

    The food habits of Trachinotus paitensis, in San Ignacio Lagoon B.C.S., Mexico, were investigated. We observed that T. paitensis is carnivorous, feeding mainly on benthic invertebrates (the gastropods Anachis spp., Bittium spp., and the crustacean larvae). We concluded that T. paitensis is an opportunist predator that impacts mainly on epibenthic invertebrates.

  7. Le traitement de la variation linguistique dans les travaux universitaires sur les langues pratiquées en Algérie : Cas de quelques positions de recherche

    Directory of Open Access Journals (Sweden)

    Chachou Ibtissem

    2016-01-01

    Full Text Available Notre contribution porte sur les dynamiques de recherche sur la question de la variation (ou leur absence par rapport aux langues pratiquées en Algérie. Ces langues sont l’arabe algérien, le français, les langues berbères et l’arabe institutionnel, et ce dans les domaines formels et informels. Notre corpus renferme un échantillon représentatif des écrits portant sur des pratiques plurilingues et/ ou les théorisant, lesquelles pratiques sont saisies et analysées des points de vue sociolinguistique et sociodidactique. Ces écrits/résultats sont l’oeuvre de chercheurs algériens dont les travaux sont repris par les jeunes chercheurs notamment et qui leur servent souvent de références et d’appuis théoriques. Nous tenterons à travers cette contribution, autant que faire se peut, de dégager ces positionnements théoriques, d’en interroger les soubassements d’ordre épistémique et d’identifier clairement les orientations, les priorités et les attentes pour la recherche en didactique et en sociolinguistique. Il s’agira notamment de mesurer leur apport pour la recherche dans le domaine des sciences du langage, leur pertinence ainsi que leur utilité, mais d’observer également ce qui peut handicaper la réflexion sur des questions aussi sensibles tant elles sont innervées par des considérations idéologiques dont le linguiste n’échappe pas toujours.

  8. Promotion des droits de la personne et de la justice du point de vue ...

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

    Promotion des droits de la personne et de la justice du point de vue des pays du Sud. À l'heure où des pouvoirs émergents comme la Chine, l'Inde et le Brésil prennent du gallon sur les plans économique et politique, dans les pays du Sud, les organismes de la base s'unissent pour veiller au respect des droits de la ...

  9. Ecodesign in the context of customer's and producer's point of view

    OpenAIRE

    Maletič, Matjaž; Maletič, Damjan; Gomišček, Boštjan

    2017-01-01

    The present study reviews the attitudes and behaviours of the customers toward products which are “respectful” for the environment. To address the issue in a wider perspective, this paper also encompasses various aspects of ecodesign from producer’s point of view. Two surveys were conducted. The purpose of the first survey was to investigate the awareness and intention of the Slovenian customers to purchase green products, their perceptions and attitudes towards green products. The second sur...

  10. Transhumant Ranchers in California

    Science.gov (United States)

    Sulak, A.; Forero, L.; Huntsinger, L.

    2009-04-01

    There is a strong link between some of the richest, most productive lands of the western United States, including California's oak woodlands, and the traditional "transhumance" of ranchers using public ranges. Oak woodland ranchers with government grazing leases report that about half of their income stems from using government -owned montane ranges. For many, loss of these leases reduces their ranch productive capacity to a level insufficient for sustainability, augmenting the sale of ranch lands for development. Many thousands of hectares of oak woodlands are linked to the fate of government leases in this way, and this linkage limits the opportunities for conservation of oak woodlands as "working landscapes" via conservation easements. This type of conservation is the fastest growing type in California today. The first case study shows that over the past 100 years there has been a reduction in access to the natural resources needed for transhumance from three sources: competition from use of the pastures for recreation and nature preservation, management practices that have brought about change in the character of the natural resources themselves, and urban sprawl. Ranchers are leasing other properties, purchasing feed, and transporting animals to other regions to compensate. Most had increased their privately leased land over the previous five years. Though they desire to stay on their ranches, transhumant ranching is becoming increasingly difficult because of land use changes on both public and private lands and a third of ranchers believe that they may need to sell the property for development if they lose their summer permits. There are many "line camps" on Forest Service range—cabins that families or workers would stay in during the summer to tend the cattle. However, the need to support the ranch with work in town limits the ability of the household to participate in transhumance or even travel into the mountains to check on the animals. For ranching to

  11. Directional wave and temperature data from seven buoys at Point Reyes, CA, 1996-2002 (NODC Accession 0000760)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Wave data were collected from 7 buoys in Point Reyes, California, from 06 December 1996 to 25 July 2002. Data were collected as part of the Coastal Data Information...

  12. Un copiste inattendu à Vic-sur-Cère (Cantal

    Directory of Open Access Journals (Sweden)

    Renaud Benoit-Cattin

    2012-02-01

    Full Text Available A Vic-sur-Cère, petit bourg du Cantal, l’hôtel du Pont et du Parc abrite au rez-de-chaussée une salle de restaurant dont les quatre murs sont ornés de dix-sept peintures d’un caractère peu ou prou monumental. Leur hauteur est d’environ 1,50 m, leur largeur variant de 0,6 à 3,5 m. Quatorze d’entre elles ont été exécutées par Antoine Cayrol entre 1909 et 1914, les trois dernières par son petit-fils, Roger Cayrol, en 1954.Le grand-père, Antoine, né en 1864, est élevé à Paris. Après son service m...

  13. Commentaires sur la valeur piscicole du Canal de Roubaix (Nord

    Directory of Open Access Journals (Sweden)

    ARRIGNON J.

    1970-10-01

    Full Text Available La population piscicole du Canal de ROUBAIX a été inventoriée par pêche électrique. Trois passages, suivis chacun de l'enlèvement des poissons capturés, ont été opérés dans chacun des trois Secteurs d'inventaire. Le peuplement le plus probable ainsi estimé (par la méthode De Lury,est en rapport avec le degré de pollution du canal. On constate aussi queles poissons se cantonnent le long des berges, sur une largeur de 2 à 3mètres.L'estimation à l'hectare représente donc en réalité le stock d'une zone n'ayant que 25 % de la surface totale du Canal. Les poissons contrôlés sont pour la plupart des poissons de repeuplement.

  14. Avis 6 sur la formation à et par la recherche

    OpenAIRE

    Centre de Coopération Internationale en Recherche Agronomique pour le Développement

    2015-01-01

    La formation à et par la recherche s’appuie sur la démarche scientifique, les savoirs, les connaissances à transmettre, tout autant que l’acquisition de compétences en gestion de projet, de capacités au travail en équipe, d’une ouverture d’esprit qui favorisera la créativité. Elle doit permettre de prendre conscience de la responsabilité endossée par la communauté scientifique vis-à-vis de la société et de l’environnement, mais aussi préparer l’avenir professionnel de celle ou de celui qu...

  15. Etudes sur le Portugal au Temps de l'Humanisme

    Directory of Open Access Journals (Sweden)

    J. Cruz Costa

    1953-06-01

    Full Text Available BATAILLON (Marcel. — Etudes sur le Portugal au Temps de l'Humanisme.  Acta Universitatis Conimbrigencis, 1952, 309 pp. (Primeiro Parágrafo do Artigo O Prof. Marcel Bataillon, erudito dos mais inteligentes da França atual, autor de uma obra que é hoje impr:scindível para quem pretenda estudar o humanismo renascentista na Espanha ou em Portugal, diríamos melhor, talvez: para quem pretenda estudar o Humanismo e a Renascença, — acaba de publicar, na coleção Acta Universitatis Conimbrigencis, êste volume no qual reune alguns trabalhos da mais alta importância para o conhecimento de muitos aspectos da vida espiritual portuguêsa do século XVI.

  16. Arcs électriques sur panneaux solaires de satellite

    OpenAIRE

    Amorim, Emmanuel

    2002-01-01

    Tout au long de leur durée de vie, les satellites sont en interaction constante avec l'environnement spatial. En orbite géostationnaire, les surfaces des satellites sont par exemple chargées par les particules de la magnétosphère, en particulier par les électrons. Récemment, des pertes de puissance ont été constatées sur certains satellites situés en orbite géostationnaire. Ces anomalies ont été corrélées avec des périodes d'environnement chargeant et s'expliqueraient par une décharge électro...

  17. Components of SurA required for outer membrane biogenesis in uropathogenic Escherichia coli.

    Directory of Open Access Journals (Sweden)

    Kristin M Watts

    2008-10-01

    Full Text Available SurA is a periplasmic peptidyl-prolyl isomerase (PPIase and chaperone of Escherichia coli and other Gram-negative bacteria. In contrast to other PPIases, SurA appears to have a distinct role in chaperoning newly synthesized porins destined for insertion into the outer membrane. Previous studies have indicated that the chaperone activity of SurA rests in its "core module" (the N- plus C-terminal domains, based on in vivo envelope phenotypes and in vitro binding and protection of non-native substrates.In this study, we determined the components of SurA required for chaperone activity using in vivo phenotypes relevant to disease causation by uropathogenic E. coli (UPEC, namely membrane resistance to permeation by antimicrobials and maturation of the type 1 pilus usher FimD. FimD is a SurA-dependent, integral outer membrane protein through which heteropolymeric type 1 pili, which confer bladder epithelial binding and invasion capacity upon uropathogenic E. coli, are assembled and extruded. Consistent with prior results, the in vivo chaperone activity of SurA in UPEC rested primarily in the core module. However, the PPIase domains I and II were not expendable for wild-type resistance to novobiocin in broth culture. Steady-state levels of FimD were substantially restored in the UPEC surA mutant complemented with the SurA N- plus C-terminal domains. The addition of PPIase domain I augmented FimD maturation into the outer membrane, consistent with a model in which domain I enhances stability of and/or substrate binding by the core module.Our results confirm the core module of E. coli SurA as a potential target for novel anti-infective development.

  18. Effect of spin disorder on resistivity; Effet du desordre de spin sur la resistivite

    Energy Technology Data Exchange (ETDEWEB)

    Gennes, P.G. de [Commissariat a l' Energie Atomique, Saclay (France); Friedel, J [Faculte des Sciences de Paris, 75 (France)

    1959-07-01

    The resistivity of magnetic metals is studied in the case where the spin carriers are bound to the atoms (ex.: rare earths). The effect of short-range order is shown to be generally small even at the critical point. The inelasticity of the magnetic collisions between electrons and lattice can also be neglected, but this approximation becomes bad at low temperatures. In this region a spin-wave approximation is used. (author) [French] On etudie l'influence des phenomenes magnetiques sur la resistivite des metaux ou les porteurs de spin sont lies aux atomes (ex.: Terres rares). Une bonne approximation a temperature suffisamment elevee consiste a negliger l'ordre a courte distance et l'inelasticite des collisions magnetiques electrons-reseau. On montre que l'effet de l'ordre a courte distance est en general negligeable meme a la temperature critique. L'approximation devient fausse a basse temperature et doit alors etre remplacee par l'approximation des ondes de spin. (auteur)

  19. Interesting Interest Points

    DEFF Research Database (Denmark)

    Aanæs, Henrik; Dahl, Anders Lindbjerg; Pedersen, Kim Steenstrup

    2012-01-01

    on spatial invariance of interest points under changing acquisition parameters by measuring the spatial recall rate. The scope of this paper is to investigate the performance of a number of existing well-established interest point detection methods. Automatic performance evaluation of interest points is hard......Not all interest points are equally interesting. The most valuable interest points lead to optimal performance of the computer vision method in which they are employed. But a measure of this kind will be dependent on the chosen vision application. We propose a more general performance measure based...... position. The LED illumination provides the option for artificially relighting the scene from a range of light directions. This data set has given us the ability to systematically evaluate the performance of a number of interest point detectors. The highlights of the conclusions are that the fixed scale...

  20. Effet du compost à base de Calotropis procera (Aiton) W.T. Aiton sur ...

    African Journals Online (AJOL)

    Objectifs: Une étude à base de compost de Calotropis procera a été menée afin de mesurer l'effet sur la production de l'arachide sur de sols pauvres. Méthodologie et résultats: L'essai a été conduit sur le site de Doyaba au niveau des zones marginales du Tchad avec la variété fleur 11 d'arachide (Arachis hypogaea L.) ...

  1. Effets du Cloud computing sur les relations inter-organisationnelles dans la supply chain en France

    OpenAIRE

    AGHHAVANI-SHAJARI, Benyamin

    2016-01-01

    National audience; Le cloud computing (CC) est en train de changer la façon dont les entreprises déploient et exploitent leur système d’information. 55% des entreprises françaises utilisent le Service Cloud type Software as a service (Saas). Les recherches se sont surtout focalisées sur la question de l'adoption du CC (ACC) dans une organisation ou encore sur les difficultés techniques et informatiques. À notre connaissance il existe peu de recherches portant sur l'ACC au niveau de la supply ...

  2. Killing tanoak in northwestern California

    Science.gov (United States)

    D. F. Roy

    1956-01-01

    Residual tanoak (Lithocarpus densiflorus (Hook. & Arn.) Rehd.) trees and tanoak sprouts often are an important component of the vegetation which competes with conifer reproduction in northwestern California. Sometimes enough tanoak is present in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stands to dominate the...

  3. Genetic variation in California oaks

    Science.gov (United States)

    Constance I. Millar; Diane L. Delany; Lawrence A. Riggs

    1990-01-01

    In forestry the importance of genetic variation for successful reproduction, survival and growth has been widely documented for commercial conifers; until recently, little genetic work has been done on the California oaks. Even before the nature of genetic variation was scientifically investigated, its importance was suspected in operational forestry. Many failures of...

  4. California Community Colleges Parking Survey.

    Science.gov (United States)

    McIntyre, Chuck

    In 1990, a representative sample of 25 California community colleges was contacted by telephone to determine their parking policies and practices. The colleges were sampled on the basis of location and size. Study findings included the following: (1) 17 of the colleges reported that they had insufficient numbers of on-campus parking spaces; (2)…

  5. Revamping California's Education Finance System.

    Science.gov (United States)

    McFadden, Brett

    2003-01-01

    Describes reasons for California's budget deficits and their impact on school finance. Offers five possible solutions to the school funding crises: Restructure the state's tax and revenue system, restore school district revenue-sharing abilities, initiate a top-to-bottom mandate review, provide greater fiscal and program flexibility, and revamp…

  6. Residential Energy Efficiency Potential: California

    Energy Technology Data Exchange (ETDEWEB)

    Wilson, Eric J [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

    2017-11-16

    Energy used by California single-family homes that can be saved through cost-effective improvements. Prepared by Eric Wilson and Noel Merket, NREL, and Erin Boyd, U.S. Department of Energy Office of Energy Policy and Systems Analysis.

  7. California Amusement Rides and Liability

    Science.gov (United States)

    Epstein, Adam

    2005-01-01

    Twenty-three-year-old Cristina Moreno traveled from Spain to California for her honeymoon in 2000. As part of her visit, she rode the Indiana Jones amusement ride at Disneyland with her new husband. On June 25, 2000, she suffered a brain injury, and she eventually died on September 1, 2000, as a result of injuries allegedly sustained while riding…

  8. Special Education Finance in California

    Science.gov (United States)

    Hill, Laura; Warren, Paul; Murphy, Patrick; Ugo, Iwunze; Pathak, Aditi

    2016-01-01

    California's system of special education served about 718,000 students in 2014-15, or about 11.5 percent of the K-12 population. It is expensive, consuming some $12 billion in federal, state, and local dollars annually. Special education operates within a legal framework that sets it apart from the rest of the K-12 system. The state's enactment of…

  9. California Endangered Species Resource Guide.

    Science.gov (United States)

    California State Dept. of Education, Los Angeles.

    This document was developed in response to California Senate Bill No. 885, "The Endangered Species Education Project," that called for a statewide program in which schools adopt a local endangered species, research past and current efforts to preserve the species' habitat, develop and implement an action plan to educate the community…

  10. 77 FR 27246 - Marine Mammal Protection Act; Stock Assessment Report

    Science.gov (United States)

    2012-05-09

    ... contaminants in sea otters among populations in California and Alaska. M.S. thesis, University of California... Island. Master's Thesis, University of California, Santa Cruz, unpublished. Bryant, H.C. 1915. Sea otters near Point Sur. California Department of Fish and Game Bull. 1:134-135. Cameron, G.A., and K.A. Forney...

  11. Stationary sources of airborne lead: a comparison of emissions data for southern California.

    Science.gov (United States)

    Harris, Allison R; Fifarek, Brian J; Davidson, Cliff I; Blackmon, Rebecca Lankey

    2006-04-01

    Estimates for the air releases of lead from stationary point sources are considered for the South Coast Air Basin of California. We have examined four databases published by U.S. Environmental Protection Agency, the California Air Resources Board, and the South Coast Air Quality Management District. Our analysis indicates that none of the databases includes every emitting facility in the South Coast Air Basin of California and that other discrepancies among the databases exist. Additionally, the data have been analyzed for temporal variation, and some of the California Air Resources Board data are not current. The South Coast Air Quality Management District inventory covers 12 times more facilities in 2001 than in 1996. From this analysis, we conclude that all four of the databases would benefit by sharing data, increasing transparency, analyzing uncertainty, and standardizing emission estimation methods.

  12. Delphine Serre, Les coulisses de l'Etat social. Enquête sur les signalements d'enfant en danger

    OpenAIRE

    Giraud, Frédérique

    2011-01-01

    A partir de l'analyse de la manière dont les assistantes sociales réalisent leur mission de protection de l'enfance, par le signalement à la justice des enfants « en danger », Delphine Serre souhaite explorer les coulisses de l'Etat social, en prenant pour objet d'étude central, les assistantes sociales. Le signalement d'enfants en danger est ici pris comme point d'entrée pour étudier le « fonctionnement réel de l'Etat social aujourd'hui » (p 13), en centrant le regard sur un mode d'intervent...

  13. Cyanobacterial diversity in extreme environments in Baja California, Mexico: a polyphasic study.

    Science.gov (United States)

    López-Cortés, A; García-Pichel, F; Nübel, U; Vázquez-Juárez, R

    2001-12-01

    Cyanobacterial diversity from two geographical areas of Baja California Sur, Mexico, were studied: Bahia Concepcion, and Ensenada de Aripez. The sites included hypersaline ecosystems, sea bottom, hydrothermal springs, and a shrimp farm. In this report we describe four new morphotypes, two are marine epilithic from Bahia Concepcion, Dermocarpa sp. and Hyella sp. The third, Geitlerinema sp., occurs in thermal springs and in shrimp ponds, and the fourth, Tychonema sp., is from a shrimp pond. The partial sequences of the 16S rRNA genes and the phylogenetic relationship of four cyanobacterial strains (Synechococcus cf. elongatus, Leptolyngbya cf. thermalis, Leptolyngbya sp., and Geitlerinema sp.) are also presented. Polyphasic studies that include the combination of light microscopy, cultures and the comparative analysis of 16S rRNA gene sequences provide the most powerful approach currently available to establish the diversity of these oxygenic photosynthetic microorganisms in culture and in nature.

  14. Montée en tension, répétition lexicale, co-énonciation et sur- énonciation dans l'interaction entre enseignant et élève(s

    Directory of Open Access Journals (Sweden)

    Romain Christina

    2014-07-01

    énonciation et sous-énonciation (Rabatel, 2005a, 2012 peuvent venir à jouer sur la structuration et le choix de la répétition. La répétition sera analysée comme un espace où se joue des rapports de places (Vion, 2001 ; Kerbrat-Orecchioni, 1991, 1992, 2005 et de faces (Goffman, 1973ab, 1974 et où peut venir à se jouer une certaine négociation (Kerbrat-Orecchioni, 2005 que nous supposons positive lorsqu’elle se co-énonce et négative lorsqu’elle est sur-énoncée -vs sous-énoncée- (Rey et Romain, 2013. Nous nous questionnerons donc sur la forme de négociation convoquée par l’enseignant(e en contexte de montée en tension et en son sein nous nous interrogerons sur la présence ou pas de répétition lexicale. Plus généralement, nous croiserons donc l’analyse interactionnelle de ces différentes productions en fonction des montées en tension observées et des points de vue en confrontation.

  15. 76 FR 59423 - Drakes Bay Oyster Company Special-Use Permit, Draft Environmental Impact Statement, Point Reyes...

    Science.gov (United States)

    2011-09-26

    ... commercial production, harvesting, processing, and sale of shellfish at Point Reyes National Seashore. The... Bay Oyster Company Special-Use Permit, Draft Environmental Impact Statement, Point Reyes National... Drakes Bay Oyster Company Special-use permit in Drakes Estero, Point Reyes National Seashore, California...

  16. Sensitivity of landscape resistance estimates based on point selection functions to scale and behavioral state: Pumas as a case study

    Science.gov (United States)

    Katherine A. Zeller; Kevin McGarigal; Paul Beier; Samuel A. Cushman; T. Winston Vickers; Walter M. Boyce

    2014-01-01

    Estimating landscape resistance to animal movement is the foundation for connectivity modeling, and resource selection functions based on point data are commonly used to empirically estimate resistance. In this study, we used GPS data points acquired at 5-min intervals from radiocollared pumas in southern California to model context-dependent point selection...

  17. Anomuros (Anomura del arrecife de Cabo Pulmo - Los Frailes y alrededores, Golfo de California

    Directory of Open Access Journals (Sweden)

    María del Socorro García-Madrigal

    1999-12-01

    Full Text Available El análisis de los fragmentos del coral Pocillopora elegans recolectados en siete campañas de muestreo durante 1988 y 1989 resultó en 57 ejemplares de anomuros, identificándose nueve especies de la familia Porcellanidae y una especie de Diogenidae, de los cuales tres especies son nuevos registros para el área. Para la zona había 22 especies de anomuros registradas; ahora hay 25 especies repartidas en cuatro familias. Porcellanidae contiene el mayor número de especies (15, seguida por Diogenidae (7, Hippidae (2 y Coenobitidae (1. Las especies más abundantes fueron Megalobrachium tuberculipes (20 ejemplares, Petrolisthes edwardsii (9 y P. hirtispinosus (7. Sólo Hippa pacifica (4% presenta distribución Indopacífica, el resto se distribuye en áreas más restringidas del Pacífico oriental tropical y subtropical. Cuatro especies son endémicas de la provincia cortesiana (16%. Las especies de anomuros de este arrecife y sus alrededores representan el 21% de todas las especies registradas para la región del golfo de California, costa occidental de Baja California Sur, áreas costeras de Nayarit, Sinaloa y zona económica exclusiva de estos estados.During 1988-1989 seven expeditions were made in the Cabo Pulmo-Los Frailes reef and fifty-seven anomurans were collected in fragments of Pocillopora elegans (nine species of Porcellanidae and one of Diogenidae. Twenty-two species were recorded previously for the study area and three are new records, all distributed in four families. The Porcellanidae had most species (15, followed by the Diogenidae (7, Hippidae (2 and the Coenobitidae (1. Most abundant were Megalobrachium tuberculipes (20 specimens, Petrolisthes edwardsii (nine specimens, and P. hirtispinosus (seven specimens. All species are recognized as members of the Eastern Tropical Pacific fauna, although Hippa pacifica is widespread in the Indopacific. Four species are restricted to the Cortez province (16%. Anomurans collected in these

  18. Point defects in solids

    International Nuclear Information System (INIS)

    Anon.

    1978-01-01

    The principal properties of point defects are studied: thermodynamics, electronic structure, interactions with etended defects, production by irradiation. Some measuring methods are presented: atomic diffusion, spectroscopic methods, diffuse scattering of neutron and X rays, positron annihilation, molecular dynamics. Then points defects in various materials are investigated: ionic crystals, oxides, semiconductor materials, metals, intermetallic compounds, carbides, nitrides [fr

  19. Indexing Moving Points

    DEFF Research Database (Denmark)

    Agarwal, Pankaj K.; Arge, Lars Allan; Erickson, Jeff

    2003-01-01

    We propose three indexing schemes for storing a set S of N points in the plane, each moving along a linear trajectory, so that any query of the following form can be answered quickly: Given a rectangle R and a real value t, report all K points of S that lie inside R at time t. We first present an...

  20. Generalized zero point anomaly

    International Nuclear Information System (INIS)

    Nogueira, Jose Alexandre; Maia Junior, Adolfo

    1994-01-01

    It is defined Zero point Anomaly (ZPA) as the difference between the Effective Potential (EP) and the Zero point Energy (ZPE). It is shown, for a massive and interacting scalar field that, in very general conditions, the renormalized ZPA vanishes and then the renormalized EP and ZPE coincide. (author). 3 refs

  1. Poisson branching point processes

    International Nuclear Information System (INIS)

    Matsuo, K.; Teich, M.C.; Saleh, B.E.A.

    1984-01-01

    We investigate the statistical properties of a special branching point process. The initial process is assumed to be a homogeneous Poisson point process (HPP). The initiating events at each branching stage are carried forward to the following stage. In addition, each initiating event independently contributes a nonstationary Poisson point process (whose rate is a specified function) located at that point. The additional contributions from all points of a given stage constitute a doubly stochastic Poisson point process (DSPP) whose rate is a filtered version of the initiating point process at that stage. The process studied is a generalization of a Poisson branching process in which random time delays are permitted in the generation of events. Particular attention is given to the limit in which the number of branching stages is infinite while the average number of added events per event of the previous stage is infinitesimal. In the special case when the branching is instantaneous this limit of continuous branching corresponds to the well-known Yule--Furry process with an initial Poisson population. The Poisson branching point process provides a useful description for many problems in various scientific disciplines, such as the behavior of electron multipliers, neutron chain reactions, and cosmic ray showers

  2. The Lagrangian Points

    Science.gov (United States)

    Linton, J. Oliver

    2017-01-01

    There are five unique points in a star/planet system where a satellite can be placed whose orbital period is equal to that of the planet. Simple methods for calculating the positions of these points, or at least justifying their existence, are developed.

  3. Publication point indicators

    DEFF Research Database (Denmark)

    Elleby, Anita; Ingwersen, Peter

    2010-01-01

    ; the Cumulated Publication Point Indicator (CPPI), which graphically illustrates the cumulated gain of obtained vs. ideal points, both seen as vectors; and the normalized Cumulated Publication Point Index (nCPPI) that represents the cumulated gain of publication success as index values, either graphically......The paper presents comparative analyses of two publication point systems, The Norwegian and the in-house system from the interdisciplinary Danish Institute of International Studies (DIIS), used as case in the study for publications published 2006, and compares central citation-based indicators...... with novel publication point indicators (PPIs) that are formalized and exemplified. Two diachronic citation windows are applied: 2006-07 and 2006-08. Web of Science (WoS) as well as Google Scholar (GS) are applied to observe the cite delay and citedness for the different document types published by DIIS...

  4. Multispectral Image Feature Points

    Directory of Open Access Journals (Sweden)

    Cristhian Aguilera

    2012-09-01

    Full Text Available This paper presents a novel feature point descriptor for the multispectral image case: Far-Infrared and Visible Spectrum images. It allows matching interest points on images of the same scene but acquired in different spectral bands. Initially, points of interest are detected on both images through a SIFT-like based scale space representation. Then, these points are characterized using an Edge Oriented Histogram (EOH descriptor. Finally, points of interest from multispectral images are matched by finding nearest couples using the information from the descriptor. The provided experimental results and comparisons with similar methods show both the validity of the proposed approach as well as the improvements it offers with respect to the current state-of-the-art.

  5. Vegetation - Point Reyes [ds169

    Data.gov (United States)

    California Natural Resource Agency — The National Park Service (NPS), in conjunction with the Biological Resources Division (BRD) of the U.S. Geological Survey (USGS), has implemented a program to...

  6. Estimasi Model Seemingly Unrelated Regression (SUR dengan Metode Generalized Least Square (GLS

    Directory of Open Access Journals (Sweden)

    Ade Widyaningsih

    2015-04-01

    Full Text Available Regression analysis is a statistical tool that is used to determine the relationship between two or more quantitative variables so that one variable can be predicted from the other variables. A method that can used to obtain a good estimation in the regression analysis is ordinary least squares method. The least squares method is used to estimate the parameters of one or more regression but relationships among the errors in the response of other estimators are not allowed. One way to overcome this problem is Seemingly Unrelated Regression model (SUR in which parameters are estimated using Generalized Least Square (GLS. In this study, the author applies SUR model using GLS method on world gasoline demand data. The author obtains that SUR using GLS is better than OLS because SUR produce smaller errors than the OLS.

  7. Estimasi Model Seemingly Unrelated Regression (SUR dengan Metode Generalized Least Square (GLS

    Directory of Open Access Journals (Sweden)

    Ade Widyaningsih

    2014-06-01

    Full Text Available Regression analysis is a statistical tool that is used to determine the relationship between two or more quantitative variables so that one variable can be predicted from the other variables. A method that can used to obtain a good estimation in the regression analysis is ordinary least squares method. The least squares method is used to estimate the parameters of one or more regression but relationships among the errors in the response of other estimators are not allowed. One way to overcome this problem is Seemingly Unrelated Regression model (SUR in which parameters are estimated using Generalized Least Square (GLS. In this study, the author applies SUR model using GLS method on world gasoline demand data. The author obtains that SUR using GLS is better than OLS because SUR produce smaller errors than the OLS.

  8. Fronteras e identificaciones nacionales: diálogos desde el Cono Sur

    Directory of Open Access Journals (Sweden)

    Alejandro Grimson

    2014-06-01

    Full Text Available Grimson propone revisitar conceptos sociológicos como “identidades, fronteras o territorios” para adecuar un nuevo marco conceptual a la realidad del Cono Sur de América Latina.

  9. Efficacité de l'agent antagoniste Trichoderma harzianum sur ...

    African Journals Online (AJOL)

    Efficacité de l'agent antagoniste Trichoderma harzianum sur Fusarium oxysporum f. sp. lycopersiciagent pathogène de la tomate. LS Gnancadja, DHE Tonon, EMO Faton, KO Douro Kpindou, E Dannon, A Akoegninou ...

  10. Dans le labyrinthe de verre. La négociation sur l'effet de serre

    OpenAIRE

    Hourcade , Jean Charles

    2002-01-01

    National audience; En parcourant les étapes principales de la « négociation climat », on fait apparaître le jeu de miroirs qui se déroule entre Europe et États-Unis, dans un contexte historique caractérisé par les débats sur la mondialisation, la volonté de leadership de l'Union européenne sur ce thème, la montée aux États-Unis d'inquiétudes sur le maintien de leur suprématie.On montre aussi pourquoi ce jeu, après avoir masqué des possibilités réelles de compromis, a débouché en 2000 sur l'éc...

  11. Bibliography on plutonium and its compounds; Bibliographie sur le plutonium et ses composes

    Energy Technology Data Exchange (ETDEWEB)

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

    1958-07-01

    Collection of bibliographical references on plutonium and its principal compounds from 1942 to end of 1957. (author) [French] Compilation de references bibliographiques sur le plutonium et ses principaux composes de 1942 a fin 1957. (auteur)

  12. Compétences, gouvernance et nanotechnologies : pleins feux sur l ...

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

    ... pour prendre part au débat et relever les défis que posent les nanotechnologies. En plus ... de son Dialogue mondial sur la nanotechnologie et les populations pauvres (Global ... Multi level governance (MLG) framework for nanotechnology.

  13. Pärt, Arvo: "Summa". Collage sur BACH. Fratres / Patric Wiklacz

    Index Scriptorium Estoniae

    Wiklacz, Patric

    1997-01-01

    Uuest heliplaadist "Pärt, Arvo: "Summa". Collage sur BACH. Fratres. Cantus in Memoriam Benjamin Britten. Summa. Festina Lente. Tabula rasa. Tapiola Sinfonietta / Jean-Jacques Kantorow". BIS-CD-834. 62:30 DDD

  14. Des filets à nuages sur la crête d'El Tofo | CRDI - Centre de ...

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

    adaptation aux changements climatiques que le CRDI subventionne. Entretien avec…propose des entrevues vidéos avec des chercheurs participant à des projets portant sur l'adaptation aux changements climati.

  15. Sur les lherzolites et ophites des Pyrénées

    NARCIS (Netherlands)

    Zwart, H.J.

    1953-01-01

    Depuis longtemps on trouve dans la littérature sur la géologie des Pyrénées des discussions sur les lherzolites et les ophites, concernant leur origine, leur âge et leur mode de formation. En général ces discussions ont rendu difficile l'éclaircissement de ce problème et un résumé de toute la

  16. Effets du travail du sol sur le comportement chimique et biologique ...

    African Journals Online (AJOL)

    SARAH

    31 juil. 2017 ... RESUME. Objectif : L'objectif de cette étude est de comparer les effets de six techniques culturales de mise en place du blé tendre sur certaines propriétés chimiques et biologiques du sol et les conséquences sur le rendement grain et ses composantes dans la région «non chernozem» en 7ème années ...

  17. Produire des données probantes sur l'agriculture sexospécifique ...

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

    Le secteur agricole joue un rôle clé dans le tissu social et l'économie de ... il est important de comprendre la façon dont la dynamique sexospécifique influe sur ... aux ressources et le contrôle de celles-ci; l'emploi du temps et la main-d'œuvre; ... IWRA/CRDI sur les changements climatiques et la gestion adaptive de l'eau.

  18. L'urbanisation sur le plateau d'allada au sud-Benin, agent des ...

    African Journals Online (AJOL)

    La méthodologie adoptée pour mener à bien cette étude est basée d'une part, sur la revue documentaire et d'autre part, sur les enquêtes de terrain menées dans toutes les communes du département de l'Atlantique. La recherche documentaire a permis de cerner les contours de l'urbanisation et d'évaluer son ampleur ...

  19. Effets du stress salin sur la germination des graines de Gossypium ...

    African Journals Online (AJOL)

    SARAH

    31 août 2014 ... herbeuses et vives tandis que 40 % des graines ont germé sur tanne arbustive en milieu réel. Conclusion et application: l'objectif général de cette étude menée en milieu contrôlé (application des doses de sel) et en milieu réel (tannes) était de montrer les effets du stress salin sur la germination des graines.

  20. L'incidence des pesticides sur les producteurs de pommes de terre ...

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

    27 janv. 2011 ... De 1990 à 1993, lui et Charles Crissman du Centre international de la pomme de terre (CIP) en Équateur ont participé à une étude appelée Tradeoffs qui portait sur les effets des pesticides sur la santé, l'environnement et la productivité. Tous deux sont chargés de la direction des recherches du projet ...

  1. Apprentissage en ligne et sur le tas au Mexique | CRDI - Centre de ...

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

    Laura Dávila est de retour sur les bancs de l'école. Installée à son bureau dans la classe virtuelle @Campus Mexico, cette fonctionnaire mexicaine se renseigne sur son propre gouvernement — ses ministères et son cadre juridique, les lois qui encadrent l'accès à l'information et la responsabilité de la fonction publique, ...

  2. 14 Oxydation du phenol sur un catalyseur à base de Fer supporté ...

    African Journals Online (AJOL)

    AKA BOKO

    Oxydation du phenol sur un catalyseur à base de Fer supporté sur une argile marocaine. Noura LAHBABI1*, Zakia RAIS2, M. HAJJAJI 3 et S. KACIM3. 1 Laboratoire d'ingénierie des matériaux organométalliques et moléculaire. Faculté des. Sciences Dhar El Mehrez, Fès, Maroc. 2 Laboratoire d'analyses physico-chimiques ...

  3. Turismo en Segovia sur. Análisis y propuestas de mejora

    OpenAIRE

    Herranz Marcos, María

    2015-01-01

    Este trabajo hace un análisis sobre el turismo rural y sostenible. El cual se basa en el territorio de Segovia sur. Segovia sur tiene un gran potencial turístico, que en algunas zonas es menos conocido. Por ello la creación de una serie de propuestas (senderismo, cicloturismo) que de forma sostenible potencien el desarrollo del turismo en esa zona. Grado en Turismo

  4. Impact de la restructuration de la taxe d'accise sur le tabac aux ...

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

    Aux Philippines, le taux de tabagisme est élevé et les taxes sur les produits du tabac, peu élevées. La meilleure façon de redresser la situation consiste à adopter des lois qui aug- mentent considérablement les taxes. Une loi restructurant les taxes sur les produits du tabac, qui comporte une forte hausse de la taxe d'accise ...

  5. Synthèse de la recherche sur les moyens de subsistance pouvant ...

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

    Synthèse de la recherche sur les moyens de subsistance pouvant remplacer la culture du tabac. Dans l'espoir de faire obstacle aux politiques visant à réduire la demande de produits du tabac, les compagnies de tabac font valoir que ces politiques auront des répercussions négatives sur l'emploi et l'économie des pays ...

  6. Influence du système de logement sur quelques performances ...

    African Journals Online (AJOL)

    Les effets de deux systèmes de logement (batterie de cages et sol sur litière) sur les performances zootechniques et économiques des poules pondeuses ont été évalués en zone tropicale humide, au sud du Benin. Un total de 180 poules pondeuses (Isa Brown) de 26 semaines d'âge était réparti en deux groupes de 108 et ...

  7. Incidence des prix et des taxes sur la consommation de produits du ...

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

    Incidence des prix et des taxes sur la consommation de produits du tabac en Argentine, en Bolivie et au Chili. Partout en Amérique du Sud, les adultes et les enfants font une grande consommation de tabac. Un nouveau projet de recherche se penchera sur les avantages et les limites des stratégies de fixation des prix et de ...

  8. Do acupuncture points exist?

    International Nuclear Information System (INIS)

    Yan Xiaohui; Zhang Xinyi; Liu Chenglin; Dang, Ruishan; Huang Yuying; He Wei; Ding Guanghong

    2009-01-01

    We used synchrotron x-ray fluorescence analysis to probe the distribution of four chemical elements in and around acupuncture points, two located in the forearm and two in the lower leg. Three of the four acupuncture points showed significantly elevated concentrations of elements Ca, Fe, Cu and Zn in relation to levels in the surrounding tissue, with similar elevation ratios for Cu and Fe. The mapped distribution of these elements implies that each acupuncture point seems to be elliptical with the long axis along the meridian. (note)

  9. Do acupuncture points exist?

    Energy Technology Data Exchange (ETDEWEB)

    Yan Xiaohui; Zhang Xinyi [Department of Physics, Surface Physics Laboratory (State Key Laboratory), and Synchrotron Radiation Research Center of Fudan University, Shanghai 200433 (China); Liu Chenglin [Physics Department of Yancheng Teachers' College, Yancheng 224002 (China); Dang, Ruishan [Second Military Medical University, Shanghai 200433 (China); Huang Yuying; He Wei [Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039 (China); Ding Guanghong [Shanghai Research Center of Acupuncture and Meridian, Pudong, Shanghai 201203 (China)

    2009-05-07

    We used synchrotron x-ray fluorescence analysis to probe the distribution of four chemical elements in and around acupuncture points, two located in the forearm and two in the lower leg. Three of the four acupuncture points showed significantly elevated concentrations of elements Ca, Fe, Cu and Zn in relation to levels in the surrounding tissue, with similar elevation ratios for Cu and Fe. The mapped distribution of these elements implies that each acupuncture point seems to be elliptical with the long axis along the meridian. (note)

  10. Quelques considérations sur la grippe aviaire

    Directory of Open Access Journals (Sweden)

    Michel Maffesoli

    2006-06-01

    Full Text Available Dans le totalitarisme doux étendant son voile sirupeux sur des masses inquiètes, l’on sait que les divers technocrates assoient leur pouvoir en entretenant la crainte. Ce qui n’est pas très compliqué, tant la peur de l’ombre, la peur de son ombre travaille tout un chacun. Si l’on doit caractériser l’époque, c’est bien le terme de lâcheté généralisée qui vient, immédiatement, à l’esprit. L’on sait que le virus de la grippe aviaire ne peut infecter l’homme que par contact direct et prolongé. Par exemple, boire l’eau d’un marais infecté de fiente d’oiseaux contaminés ou forniquer avec une poule atteinte de ce mal. De même, le danger de pandémie ne pourrait advenir que s’il y avait conjonction avec la grippe humaine. Ainsi, les virologues considèrent qu’il faudrait plusieurs centaines de personnes infectées par la grippe aviaire, dans un milieu lui-même en pleine épidémie de grippe humaine pour qu’il y ait un danger réel d’infection généralisée. Comme on le voit le risque est grand! Mais là n’est pas le problème. Il suffit, pour nos technocrates, que l’imaginaire de l’insécurité soit là. Ils y trouvent une raison d’être. Ils peuvent, savamment, jouer les utilités. On sait que de tous temps, c’est en misant sur une angoisse diffuse que les divers pouvoirs ont assis leur légitimité. En fait ce qui est à prendre au sérieux, ce sont les hystéries collectives. La chute spectaculaire de la consommation de volailles de toutes sortes en témoigne. Souvenons-nous aussi que n’est pas loin le temps où la même suspicion planait sur la viande bovine! Trêve de plaisanterie! Actualisons l’apologue. Ainsi l’émotion provoquée par le «double scandale» qui frapperait le C.N.R.S ne manque pas de susciter inquiétudes et interrogations. En terme d’épidémiologie bien entendu. Inquiétudes quant à la santé mentale du «milieu» sociologique capable de pétionner en m

  11. Los rubios. Recherche sur les différents états de la mémoire et sur la reconstruction d’une identité

    Directory of Open Access Journals (Sweden)

    Marta Mariasole Raimondi

    2010-11-01

    Full Text Available Los rubios, Argentina, 2003. Réalisation : Albertina Carri. Interprètes : Analìa Couceyro, Albertina Carri. Durée : 89 min. Noir & blanc et couleurs. Langue espagnole. Introduction Mélange de souvenirs, d’anecdotes, de fragments et d’imagination. Los rubios [trad. Les Blonds] ne se présente pas comme un film de dénonciation ou comme un documentaire historique sur les detenidos-desparecidos. Dans ce film, Albertina Carri propose plutôt sa vision personnelle sur la disparition de ses parents. L...

  12. La compétence interculturelle et la formation initiale : le point sur le CECR et l’IDI

    Directory of Open Access Journals (Sweden)

    Karen Olivia Ragoonaden

    2011-12-01

    Full Text Available Abstract Ce projet pilote traite principalement de la compétence interculturelle des étudiants en formation initiale du français langue seconde. Douze étudiants ont répondu au questionnaire de l’IDI (inventaire de développement interculturel, un outil méthodologique qui mesure les orientations concernant la différence culturelle. Les profils interculturels, calculés d’après les résultats de l’IDI, servent de toile de fond pour proposer la mise en œuvre des interventions interculturelles selon les paramètres établis par les compétences générales du Cadre européen commun de référence pour les langues (CECR. Les travaux menés pourraient contribuer à l’élaboration des cours/ateliers en compétence interculturelle, à l’intégration des savoirs socioculturels et à la prise de conscience interculturelle identifiés dans les compétences générales du Cadre européen commun de référence pour les langues dans les cours de formation initiale. Resume This pilot study focuses on the intercultural competence of preservice French as a second language (FSL teachers. The Intercultural Development Index (IDI, a statistically valid tool used to measure intercultural competence, was administered to twelve preservice candidates. These results serve as a basis to discuss the integration of intercultural competencies along the parameters established in the general competencies of the CEFR. This study has the potential to contribute to a growing area of research in the field of intercultural competence in preservice teacher education and explores how sociocultural saviors and intercultural awareness, identified by the Common European Framework of Reference for Languages, can be integrated into Teacher Education.

  13. SUR UNE CERTAINE CLASSE D’OPERATEURS A SPECTRE CONCENTRE EN UN POINT DANS UN ESPACE DE HILBERT

    Directory of Open Access Journals (Sweden)

    B BENDOUKHA

    2000-12-01

    Full Text Available Le présent travail est consacré à l'étude de certaines classes d’opérateurs qui sont parfaitement définis par leur spectre. Pour ces opérateurs (définis dans des espaces de Hilbert abstraits, on donnera une représentation explicite et uniquement à l’aide du spectre dans l’espace des fonctions à carrés intégrables.

  14. Marine Point Forecasts

    Science.gov (United States)

    will link to the zone forecast and then allow further zooming to the point of interest whereas on the Honolulu, HI Chicago, IL Northern Indiana, IN Lake Charles, LA New Orleans, LA Boston, MA Caribou, ME

  15. Critical-point nuclei

    International Nuclear Information System (INIS)

    Clark, R.M.

    2004-01-01

    It has been suggested that a change of nuclear shape may be described in terms of a phase transition and that specific nuclei may lie close to the critical point of the transition. Analytical descriptions of such critical-point nuclei have been introduced recently and they are described briefly. The results of extensive searches for possible examples of critical-point behavior are presented. Alternative pictures, such as describing bands in the candidate nuclei using simple ΔK = 0 and ΔK = 2 rotational-coupling models, are discussed, and the limitations of the different approaches highlighted. A possible critical-point description of the transition from a vibrational to rotational pairing phase is suggested

  16. National Wetlands Inventory Points

    Data.gov (United States)

    Minnesota Department of Natural Resources — Wetland point features (typically wetlands that are too small to be as area features at the data scale) mapped as part of the National Wetlands Inventory (NWI). The...

  17. Allegheny County Address Points

    Data.gov (United States)

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset contains address points which represent physical address locations assigned by the Allegheny County addressing authority. Data is updated by County...

  18. Iowa Geologic Sampling Points

    Data.gov (United States)

    Iowa State University GIS Support and Research Facility — Point locations of geologic samples/files in the IGS repository. Types of samples include well cuttings, outcrop samples, cores, drillers logs, measured sections,...

  19. La mise en patrimoine sur ONF.ca

    Directory of Open Access Journals (Sweden)

    Michèle Garneau

    2015-05-01

    Full Text Available Résumé Ce texte propose une approche à la fois descriptive, analytique et critique de la très active production patrimoniale actuellement en cours sur ONF.ca. En se donnant comme mission de rendre accessible son patrimoine audiovisuel, l’Office se soucie d’en orienter la réception, de proposer aux internautes l’histoire de son action audiovisuelle depuis sa fondation en 1939. Par le relevé d’un certain nombre de valeurs exhibées (authenticité, représentativité, renommée et proximité, et de registres privilégiés (dont celui de la commémoration, l’auteur tente de circonscrire une axiologie du patrimoine sur ONF.ca. Dans sa seconde partie, le texte se consacre à la question de l’articulation (et de l’écart entre mémoire patrimoniale et mémoires particulières (des films afin de mieux cerner les contours politiques et les enjeux idéologiques de l’encadrement discursif des collections. Abstract This article offers a descriptive, analytical and critical approach to the very active production of audiovisual heritage currently underway at NFB.ca. Designed to make the National Film Board (NFB’s audiovisual heritage more accessible, the website carefully guides its users through the history-memory of audiovisual production at the Film Board from its foundation in 1939 through to the present. By analyzing how the website showcases its films, endorsing specific values (authenticity, representativeness, recognition and proximity and privileging certain registers (such as commemoration, the article first attempts to define an axiology of heritage in NFB.ca. The article then focuses on questions of the articulation of (and the variation between history-memory and particular memories (of films in order to better outline the political contours and ideological stakes of the discursive framework of the NFB’s collections.

  20. Discussing epigenetics in Southern California

    Science.gov (United States)

    2012-01-01

    With the goal of discussing how epigenetic control and chromatin remodeling contribute to the various processes that lead to cellular plasticity and disease, this symposium marks the collaboration between the Institut National de la Santé et de la Recherche Médicale (INSERM) in France and the University of California, Irvine (UCI). Organized by Paolo Sassone-Corsi (UCI) and held at the Beckman Center of the National Academy of Sciences at the UCI campus December 15–16, 2011, this was the first of a series of international conferences on epigenetics dedicated to the scientific community in Southern California. The meeting also served as the official kick off for the newly formed Center for Epigenetics and Metabolism at the School of Medicine, UCI (http://cem.igb.uci.edu). PMID:22414797

  1. Characterizing fixed points

    Directory of Open Access Journals (Sweden)

    Sanjo Zlobec

    2017-04-01

    Full Text Available A set of sufficient conditions which guarantee the existence of a point x⋆ such that f(x⋆ = x⋆ is called a "fixed point theorem". Many such theorems are named after well-known mathematicians and economists. Fixed point theorems are among most useful ones in applied mathematics, especially in economics and game theory. Particularly important theorem in these areas is Kakutani's fixed point theorem which ensures existence of fixed point for point-to-set mappings, e.g., [2, 3, 4]. John Nash developed and applied Kakutani's ideas to prove the existence of (what became known as "Nash equilibrium" for finite games with mixed strategies for any number of players. This work earned him a Nobel Prize in Economics that he shared with two mathematicians. Nash's life was dramatized in the movie "Beautiful Mind" in 2001. In this paper, we approach the system f(x = x differently. Instead of studying existence of its solutions our objective is to determine conditions which are both necessary and sufficient that an arbitrary point x⋆ is a fixed point, i.e., that it satisfies f(x⋆ = x⋆. The existence of solutions for continuous function f of the single variable is easy to establish using the Intermediate Value Theorem of Calculus. However, characterizing fixed points x⋆, i.e., providing answers to the question of finding both necessary and sufficient conditions for an arbitrary given x⋆ to satisfy f(x⋆ = x⋆, is not simple even for functions of the single variable. It is possible that constructive answers do not exist. Our objective is to find them. Our work may require some less familiar tools. One of these might be the "quadratic envelope characterization of zero-derivative point" recalled in the next section. The results are taken from the author's current research project "Studying the Essence of Fixed Points". They are believed to be original. The author has received several feedbacks on the preliminary report and on parts of the project

  2. Photoacoustic Point Source

    International Nuclear Information System (INIS)

    Calasso, Irio G.; Craig, Walter; Diebold, Gerald J.

    2001-01-01

    We investigate the photoacoustic effect generated by heat deposition at a point in space in an inviscid fluid. Delta-function and long Gaussian optical pulses are used as sources in the wave equation for the displacement potential to determine the fluid motion. The linear sound-generation mechanism gives bipolar photoacoustic waves, whereas the nonlinear mechanism produces asymmetric tripolar waves. The salient features of the photoacoustic point source are that rapid heat deposition and nonlinear thermal expansion dominate the production of ultrasound

  3. Unconventional Quantum Critical Points

    OpenAIRE

    Xu, Cenke

    2012-01-01

    In this paper we review the theory of unconventional quantum critical points that are beyond the Landau's paradigm. Three types of unconventional quantum critical points will be discussed: (1). The transition between topological order and semiclassical spin ordered phase; (2). The transition between topological order and valence bond solid phase; (3). The direct second order transition between different competing orders. We focus on the field theory and universality class of these unconventio...

  4. SharePoint governance

    OpenAIRE

    Ali, Mudassar

    2013-01-01

    Masteroppgave i informasjons- og kommunikasjonsteknologi IKT590 2013 – Universitetet i Agder, Grimstad SharePoint is a web-based business collaboration platform from Microsoft which is very robust and dynamic in nature. The platform has been in the market for more than a decade and has been adapted by large number of organisations in the world. The platform has become larger in scale, richer in features and is improving consistently with every new version. However, SharePoint ...

  5. Absolute gravity measurements in California

    Science.gov (United States)

    Zumberge, M. A.; Sasagawa, G.; Kappus, M.

    1986-08-01

    An absolute gravity meter that determines the local gravitational acceleration by timing a freely falling mass with a laser interferometer has been constructed. The instrument has made measurements at 11 sites in California, four in Nevada, and one in France. The uncertainty in the results is typically 10 microgal. Repeated measurements have been made at several of the sites; only one shows a substantial change in gravity.

  6. Fumigation success for California facility.

    Science.gov (United States)

    Hacker, Robert

    2010-02-01

    As Robert Hacker, at the time director of facilities management at the St John's Regional Medical Center in Oxnard, California, explains, the hospital, one of the area's largest, recently successfully utilised a new technology to eliminate mould, selecting a cost and time-saving fumigation process in place of the traditional "rip and tear" method. Although hospital managers knew the technology had been used extremely effectively in other US buildings, this was reportedly among the first ever healthcare applications.

  7. Global climate change and California

    International Nuclear Information System (INIS)

    Knox, J.B.; Scheuring, A.F.

    1991-01-01

    In the fall of 1988 the University of California organized a new public-service initiative on global climate change in response to inquiries and requests from members of Congress and the Department of Energy (DOE). This new systemwide initiative involved all of the University of California campuses and the University's three national laboratories at Berkeley, Los Alamos, and Livermore. The goal of this Greenhouse Initiative was to focus the multidisciplinary resources of the UC campuses and the team-oriented research capabilities of the laboratories on the prospect of global warming and its associated effects on the planet and its nations. In consultation with the DOE, the organizers proposed a series of workshops to focus University of California research resources on the issue of global warming, to contribute to the congressionally mandated DOE studies on options for the US to reduce carbon dioxide emissions by 20% by the year 2000, and to begin building a long-term research base contributing to an improved understanding of global change in all of its complexity and diverse discipline implications. This volume contains papers from the first of these workshops. Individual papers are processed separately for inclusion in the appropriate data bases

  8. Examen d'analyses récentes portant sur l'Étude canadienne sur l'incidence des signalements de cas de violence et de négligence envers les enfants (ECI

    Directory of Open Access Journals (Sweden)

    D. Potter

    2015-01-01

    Full Text Available Introduction : Cette analyse a comme objectif de rassembler les articles évalués par les pairs utilisant des données tirées de l'Étude canadienne sur l'incidence des signalements de cas de violence et de négligence envers les enfants (ECI publiées depuis novembre 2011 ainsi que des suréchantillons provinciaux de l'ECI, d'évaluer la qualité de leurs conclusions, de les synthétiser et de faire le bilan des variations dans l'utilisation de ces données. Méthodologie : Nous avons sélectionné les articles au moyen du suivi des demandes d'accès aux données de l'ECI effectué par l'Agence de la santé publique du Canada et au suivi des publications produites au moyen de ces données. Deux évaluateurs au moins ont examiné de façon indépendante les articles et en ont évalué la qualité. Résultats : Nous avons conservé 32 articles. Leurs points forts étaient en général les suivants : objectifs de recherche clairement établis, variables de contrôle appropriées, analyses pertinentes, taille de l'échantillon suffisante, conclusions pertinentes et utilité pour les pratiques et politiques. Leur point problématique était le plus souvent une définition floue des variables et des critères d'inclusion des cas. La plupart du temps, les articles mesuraient les associations entre les caractéristiques des mauvais traitements et celles des enfants, des pourvoyeurs de soins, du ménage et de l'organisme ou de la personne à l'origine du signalement et ils s'intéressaient aux conséquences des signalements, par exemple l'ouverture d'un dossier pour une prestation continue de services ou le placement. Conclusion : Les articles utilisant des données de l'ECI ont obtenu des scores positifs pour la plupart des indicateurs de qualité. Dans leurs analyses les plus récentes, les chercheurs se sont concentrés sur les catégories de maltraitance insuffisamment étudiées jusqu'ici (exposition à la violence conjugale, négligence et

  9. Sources of Aid and Resilience and Points of Pain in Jamaican Migrant Families

    OpenAIRE

    Thompson, Paul; Bauer, Elaine

    2008-01-01

    Soutien, résilience et points douloureux dans les familles jamaïcaines transnationales.L’article se fonde sur des récits de vie recueillis auprès de membres de 45 familles qui ont de la parentèle à la fois en Jamaïque, en Grande-Bretagne et en Amérique du Nord. L’idée centrale est que la forme jamaïcaine transnationale de famille est centrée sur un type de structure familiale qui est complexe, informel, et pragmatique ; ce type de structure serait caractéristique de la parenté jamaïcaine depu...

  10. Seismic reflection-based evidence of a transfer zone between the Wagner and Consag basins: implications for defining the structural geometry of the northern Gulf of California

    Science.gov (United States)

    González-Escobar, Mario; Suárez-Vidal, Francisco; Hernández-Pérez, José Antonio; Martín-Barajas, Arturo

    2010-12-01

    This study examines the structural characteristics of the northern Gulf of California by processing and interpreting ca. 415 km of two-dimensional multi-channel seismic reflection lines (data property of Petróleos Mexicanos PEMEX) collected in the vicinity of the border between the Wagner and Consag basins. The two basins appear to be a link between the Delfín Superior Basin to the south, and the Cerro Prieto Basin to the north in the Mexicali-Imperial Valley along the Pacific-North America plate boundary. The seismic data are consistent with existing knowledge of four main structures (master faults) in the region, i.e., the Percebo, Santa María, Consag Sur, and Wagner Sur faults. The Wagner and Consag basins are delimited to the east by the Wagner Sur Fault, and to the west by the Consag Sur Fault. The Percebo Fault borders the western margin of the modern Wagner Basin depocenter, and is oriented N10°W, dipping (on average) ˜40° to the northeast. The trace of the Santa María Fault located in the Wagner Basin strikes N19°W, dipping ˜40° to the west. The Consag Sur Fault is oriented N14°W, and dips ˜42° to the east over a distance of 21 km. To the east of the study area, the Wagner Sur Fault almost parallels the Consag Sur Fault over a distance of ˜86 km, and is oriented N10°W with an average dip of 59° to the east. Moreover, the data provide new evidence that the Wagner Fault is discontinuous between the two basins, and that its structure is more complex than previously reported. A structural high separates the northern Consag Basin from the southern Wagner Basin, comprising several secondary faults oriented NE oblique to the main faults of N-S direction. These could represent a zone of accommodation, or transfer zone, where extension could be transferred from the Wagner to the Consag Basin, or vice versa. This area shows no acoustic basement and/or intrusive body, which is consistent with existing gravimetric and magnetic data for the region.

  11. March 2007 Scripps Institute of Oceanography (SIO) Lidar of the Southern California Coastline: Long Beach to the US/Mexico Border

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This lidar point data set was collected during low tide conditions along an approximately 500-700 meter wide strip of the Southern California coastline within an...

  12. Accessing northern California earthquake data via Internet

    Science.gov (United States)

    Romanowicz, Barbara; Neuhauser, Douglas; Bogaert, Barbara; Oppenheimer, David

    The Northern California Earthquake Data Center (NCEDC) provides easy access to central and northern California digital earthquake data. It is located at the University of California, Berkeley, and is operated jointly with the U.S. Geological Survey (USGS) in Menlo Park, Calif., and funded by the University of California and the National Earthquake Hazard Reduction Program. It has been accessible to users in the scientific community through Internet since mid-1992.The data center provides an on-line archive for parametric and waveform data from two regional networks: the Northern California Seismic Network (NCSN) operated by the USGS and the Berkeley Digital Seismic Network (BDSN) operated by the Seismographic Station at the University of California, Berkeley.

  13. Periodismo ambiental en Canal Sur Televisión

    Directory of Open Access Journals (Sweden)

    Lic. Miguel Montaño Montaño

    1999-01-01

    Full Text Available El autor estudia el origen histórico del periodismo ambiental, la evolución en España y Andalucía y su aparición en Canal Sur TV Realiza un análisis sobre la información medioambiental, especialidad del periodismo que en la década de los noventa despierta nuevamente gran interés entre el público. La televisión autonómica ha dedicado, desde su creación numerosos programas sobre el medio ambiente. Actualmente sus Servicios Informativos tienen la sección Medio Ambiente. De la importancia que se concede a este tipo de información es un buen ejemplo el programa «Tierra y Mar», que incorpora progresivamente noticias medioambientales, referidas a la educación ambiental, el mantenimiento y recuperación de la biodiversidad y la presentación de modelos de conducta respetuosos.

  14. Effets de la formation sur la violence conjugale

    Science.gov (United States)

    Zaher, Eman; Keogh, Kelly; Ratnapalan, Savithiri

    2014-01-01

    Résumé Objectif Décrire et évaluer l’efficacité de la formation concernant la violence conjugale pour améliorer les connaissances et permettre la reconnaissance et la prise en charge par les médecins des femmes victimes de violence. Sources des données On a fait une recension dans la base de données des révisions systématiques de Cochrane, MEDLINE, PubMed, PsycINFO, ERIC et EMBASE pour trouver des articles publiés entre le 1e janvier 2000 et le 1e novembre 2012. Des recherches manuelles ont complété cette recension pour cerner des articles pertinents à l’aide d’une stratégie de recherche combinant des textes, mots et expressions MeSH. Sélection des études On a choisi des études randomisées contrôlées qui portaient sur des interventions éducatives à l’intention des médecins et fournissaient des données sur les effets des interventions. Synthèse On a inclus 9 études randomisées contrôlées qui décrivaient différentes approches pédagogiques et diverses mesures des résultats. Trois études examinaient les effets d’interventions éducatives pour des médecins en formation postdoctorale et ont constaté une augmentation des connaissances, mais il n’y a eu aucun changement dans le comportement en ce qui a trait à l’identification des victimes de violence conjugale. Six études portaient sur des interventions éducatives pour des médecins en pratique active. Trois d’entre elles utilisaient une approche à multiples facettes pour les médecins, qui combinait une formation ainsi que des interventions de soutien de la part du système pour changer les comportements des médecins, comme une sensibilisation générale accrue à la violence conjugale au moyen de brochures et d’affiches, des aide-mémoire pour rappeler aux médecins comment identifier les victimes, des moyens pour faciliter l’accès des médecins à des services de soutien pour les victimes, la réalisation d’audits et la fourniture de rétroaction. Les

  15. Cultura cabocla en el sur de Brasil un abordaje preliminar

    Directory of Open Access Journals (Sweden)

    Pedro Martins

    2003-12-01

    Full Text Available This text is a research report concerning the cabocla (mestizo population of southern Brazil, focusing on cultural aspects, seen here as a distinguishing system. This population is studied in terms of the migratory process that begins with their expulsion from the countryside, their adaptation to the small towns, passing through the periphery of the large cities and finally returning to the countryside. The article attempts to understand their musical practices, the technology that they have appropriated and their religiosity, all of which have been, symbolically and materially, reconstructed in their complexity.//Este texto es un reporte de la investigación sobre la población cabocla en el sur de Brasil, centrado en los aspectos culturales vistos como un sistema distintivo. Esta población es estudiada en los términos de un proceso migratorio que empieza con su expulsión del campo, su adaptación a pueblos pequeños, pasando por la periferia de las grandes ciudades y finalmente, retornando al campo. El artículo busca entender las prácticas musicales, la tecnología que apropiaron y sus prácticas religiosas, aspectos todos que han sido simbólica y materialmente reconstruidos en su complejidad.

  16. Impact des changements climatiques sur l’agriculture dans la plaine de Jeffara sud-est tunisien

    Directory of Open Access Journals (Sweden)

    Houcine Jeder

    2013-12-01

    Full Text Available Cette étude évalue la vulnérabilité de l’agriculture dans la plaine de Jeffera sud-est tunisien aux changements climatiques en utilisant la méthode Ricardienne. Cette méthode consiste à exprimer les revenus nets agricoles en fonction des variables climatiques, édaphiques et socio-économiques. Ces modèles ricardiens ont été testés sur la base des données d’une enquête réalisée dans le cadre de projet de développement dans la plaine Jeffera pour la compagne agricole 2002-2003.  Ces modèles ont permis d’exprimer d’une part la relation qui existe entre le revenu agricole et les variables climatiques (température et précipitation et d’autre part, d’analyser la sensibilité des revenus agricoles par rapport à ces variables climatiques. Des simulations ont été faites sur la base de scenario A2 résultat de la projection faite par le modèle HadCM3 à l’échelle nationale et régionale de la Tunisie.Les résultats de l’étude ont montré que la relation entre le revenu agricole et le climat est non linéaire. De même, les effets négatifs de certaines options d’adaptation ont montré que  l’agriculture dans la plaine de Jeffera est une agriculture paysanne basée sur le travail familial qui nécessite aujourd’hui un capital financier important et une marge de modernisation afin d’améliorer l’activité agricole dans les années futures. Tandis que les effets positifs de certaines autres options peuvent être servir comme des points de réflexion dans l’élaboration des stratégies d’adaptation aux changements climatiques comme l’utilisation des nouvelles technologies d’irrigation et l’intégration de l’activité de l’élevage dans l’exploitation agricole.

  17. Les droits de la personne sur ONF.ca : discours et images de la tolérance

    Directory of Open Access Journals (Sweden)

    Christine Albert

    2015-05-01

    Full Text Available Résumé En décembre 2012, ONF.ca ajoutait une chaîne consacrée aux « Droits de la personne » à sa plateforme web celle-ci proposant une sélection de films portant sur « les droits fondamentaux qui protègent tout être humain ». Pour examiner cette dernière, on partira du postulat selon lequel l’encadrement discursif qui accompagne cette sélection peut influencer la façon dont l’utilisateur regardera les films proposés. Dans un premier temps on se concentrera sur l’espace discursif, pour en dégager les stratégies de mise en valeur : sur quoi insistent-elles ? Quelles sont les attitudes valorisées par le discours ? Dans un second temps, on observera, à partir d’analyses filmiques, si les promesses avancées par ces discours s’avèrent tenues, en d’autres termes on se demandera en quoi ces films répondent ou non aux attentes suscitées par l’encadrement discursif. Abstract In December 2012, NFB.ca added a channel to its website dedicated to “Human rights.” This channel offers a selection of films pertaining to “the inalienable fundamental rights to which all persons are entitled.” This article consists of an examination of this channel, using as a starting point the assumption that the discursive framework accompanying the channel may influence the way in which the user views the selected films found there. The initial focus falls on the discursive space and identifying therein the strategies that are used to describe the selected films: What do they draw attention to? Which attitudes are emphasized by the discourse? The article then moves to examine, through film analysis, the promises made by these discourses, and whether or not they are fulfilled; we will examine the extent to which the films meet the expectations provoked by the discourses.

  18. Effet sur la compétitivité des réglementations relatives à la gestion des effluents

    DEFF Research Database (Denmark)

    Andersen, Mikael Skou

    2004-01-01

    Grâce à un regard approfondi sur le secteur laitier dans les pays de l'OCDE, cette étude permet de mieux analyser l'impact des subventions à l'agriculture et des politiques de l'environnement sur l'environnement et sur la compétitivité internationale des produits laitiers. Ce chapitre étudie les ...

  19. Perception du risque et vulnérabilité des milieux humides sur la côte ...

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

    Ils repéreront et évalueront les facteurs de stress associés aux changements climatiques pour ensuite analyser les facteurs qui influent sur la gestion des milieux humides et sur la perception des risques au sein des collectivités locales. Cette analyse débouchera sur l'élaboration de lignes directrices pour encourager les ...

  20. The Sur7 Protein Regulates Plasma Membrane Organization and Prevents Intracellular Cell Wall Growth in Candida albicans

    OpenAIRE

    Alvarez, Francisco J.; Douglas, Lois M.; Rosebrock, Adam; Konopka, James B.

    2008-01-01

    The Candida albicans plasma membrane plays important roles in cell growth and as a target for antifungal drugs. Analysis of Ca-Sur7 showed that this four transmembrane domain protein localized to stable punctate patches, similar to the plasma membrane subdomains known as eisosomes or MCC that were discovered in S. cerevisiae. The localization of Ca-Sur7 depended on sphingolipid synthesis. In contrast to S. cerevisiae, a C. albicans sur7Δ mutant displayed defects in endocytosis and morphogenes...