WorldWideScience
 
 
1

Relations de dispersion pour cha\\^ines lin\\'eaires comportant des interactions harmoniques auto-similaires  

CERN Document Server

Many systems in nature have arborescent and bifurcated structures such as trees, fern, snails, lungs, the blood vessel system, etc. and look self-similar over a wide range of scales. Which are the mechanical and dynamic properties that evolution has optimized by choosing self-similarity? How can we describe the mechanics of self-similar structures in the static and dynamic framework? Physical systems with self-similarity as a symmetry property require the introduction of non-local particle-particle interactions and a (quasi-) continuous distribution of mass. We construct self-similar functions and linear operators such as a self-similar variant of the Laplacian and of the D'Alembertian wave operator. The obtained self-similar linear wave equation describes the dynamics of a quasi-continuous linear chain of infinite length with a spatially self-similar distribution of nonlocal inter-particle springs. The self-similarity of the nonlocal harmonic particle-particle interactions results in a dispersion relation of...

Michelitsch, Thomas M; Nicolleau, Franck C G A; Nowakowski, Andrzej F; Derogar, Shahram

2009-01-01

2

San Diego Gas and Electric activities related to geothermal energy  

Energy Technology Data Exchange (ETDEWEB)

In addition to the Heber Binary Project, San Diego Gas and Electric is engaged in a number of projects related to the development of geothermal power. The goal of these projects is to accelerate the development of commercial geothermal power generation in the Imperial Valley. SDG and E is achieving this goal by projects in 3 major areas. These areas are: (1) geothermal resource exploration and development, (2) geothermal power production, and (3) transmission facility development. The activities of the company in support of these activities are discussed.

Jacobson, W.O.; Shreve, J.H.; Figueroa, R.A.

1983-09-01

3

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

Science.gov (United States)

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

Boissonneault, Maxime

4

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

Directory of Open Access Journals (Sweden)

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

Muzio Rossana; Peel Elena; Morales Ethel; Veroslavsky Gerardo; Conti Bruno

2009-01-01

5

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

International Nuclear Information System (INIS)

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

2010-10-01

6

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

Scientific Electronic Library Online (English)

Full Text Available Abstract in spanish Este trabajo presenta nuevos resultados geológico-estructurales y geoquímicos relacionados con el magmatismo Mesozoico del extremo Este de Uruguay (Sierra de San Miguel, Departamento de Rocha), asociados a la apertura del océano Atlántico Sur. Fueron reconocidas para la región estudiada tres unidades volcánicas/subvolcánicas. La asociación volcánica félsica está compuesta por derrames riolíticos - dacíticos, con texturas dominantemente porfiríticas y natural (more) eza química subalcalina. Asociadas a estas riolitas ocurren niveles de rocas piroclásticas. La asociación subvolcánica félsica está compuesta por granófiros con una extensión superficial de aproximadamente 25 km2, cortados por diques máficos y félsicos. Fue identificada también una asociación básica compuesta por diques y un cuerpo de gabro. Todas estas unidades son de edad Mesozoico (130 - 127 Ma) y de acuerdo a su carácter químico corresponden a magmas de naturaleza subalcalina a débilmente peralcalina. Abstract in english This work presents new results of a detailed geological and structural investigation focusing the easternmost Uruguayan Mesozoic magmatic occurrences related to the south Atlantic opening. Lithological descriptions, their stratigraphic relationships and complimentary lithochemical characterizations carried out in the San Miguel region (East Uruguay) are presented. Three volcanic/sub-volcanic units have been recognized. The fel-sic volcanic association is composed by rhyol (more) itic - dacitic flows, mainly with porphyritic textures and sub-alkaline nature and related pyroclastic rocks. The felsic sub-volcanic association is characterized by granophyres of about 25 km2 of exposed area, cross- cut by mafic and felsic dykes. Finally, a mafic association has been identified characterized by dykes and a small intrusion of gabbroic composition. All these units are Mesozoic in age (130- 127 Ma) and according to their chemical nature they correspond to sub-alkaline to weak peralkaline magmas.

Muzio, Rossana; Peel, Elena; Morales, Ethel; Veroslavsky, Gerardo; Conti, Bruno

2009-06-01

7

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

CERN Multimedia

R\\'esum\\'e Apr\\`es un bref aper\\c{c}u permettant de situer notre travail, nous proposons une nouvelle voie pour aborder la programmation lin\\'eaire en proposant un algorithme \\'elabor\\'e \\`a partir d'une id\\'ee simple qui permet d'obtenir une solution aussi approch\\'ee que voulu par translation dichotomique d'un hyperplan de l'espace des solutions. Abstract After a short course in order to situate our work, we propose a new way to study linear programming and we give a proposal of algorithm to solve linear programming from a basic idea which allow to obtain an approached solution with desired accuracy. For this we use some dichotomic translations of an hyperplan in the solutions hyperspace.

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

2010-01-01

8

Data related uncertainty in near-surface vulnerability assessments for agrochemicals in the San Joaquin Valley.  

UK PubMed Central (United Kingdom)

Precious groundwater resources across the United States have been contaminated due to decades-long nonpoint-source applications of agricultural chemicals. Assessing the impact of past, ongoing, and future chemical applications for large-scale agriculture operations is timely for designing best-management practices to prevent subsurface pollution. Presented here are the results from a series of regional-scale vulnerability assessments for the San Joaquin Valley (SJV). Two relatively simple indices, the retardation and attenuation factors, are used to estimate near-surface vulnerabilities based on the chemical properties of 32 pesticides and the variability of both soil characteristics and recharge rates across the SJV. The uncertainties inherit to these assessments, derived from the uncertainties within the chemical and soil data bases, are estimated using first-order analyses. The results are used to screen and rank the chemicals based on mobility and leaching potential, without and with consideration of data-related uncertainties. Chemicals of historic high visibility in the SJV (e.g., atrazine, DBCP [dibromochloropropane], ethylene dibromide, and simazine) are ranked in the top half of those considered. Vulnerability maps generated for atrazine and DBCP, featured for their legacy status in the study area, clearly illustrate variations within and across the assessments. For example, the leaching potential is greater for DBCP than for atrazine, the leaching potential for DBCP is greater for the spatially variable recharge values than for the average recharge rate, and the leaching potentials for both DBCP and atrazine are greater for the annual recharge estimates than for the monthly recharge estimates. The data-related uncertainties identified in this study can be significant, targeting opportunities for improving future vulnerability assessments.

Loague K; Blanke JS; Mills MB; Diaz-Diaz R; Corwin DL

2012-09-01

9

Effect of racial and ethnic composition of neighborhoods in San Francisco on rates of mental health-related 911 calls.  

UK PubMed Central (United Kingdom)

OBJECTIVE: This study investigated the association between the racial and ethnic residential composition of San Francisco neighborhoods and the rate of mental health-related 911 calls. METHODS: A total of 1,341,608 emergency calls (28,197 calls related to mental health) to San Francisco's 911 system were made from January 2001 through June 2003. Police sector data in the call records were overlaid onto U.S. census tracts to estimate sector demographic and socioeconomic characteristics. Negative binomial regression was used to estimate the association between the percentage of black, Asian, Latino, and white residents and rates of mental health-related calls. RESULTS: A one-point increase in a sector's percentage of black residents was associated with a lower rate of mental health-related calls (incidence rate ratio=.99, p<.05). A sector's percentage of Asian and Latino residents had no significant effect. CONCLUSIONS: The observed relationship between the percentage of black residents and mental health-related calls is not consistent with known emergency mental health service utilization patterns.

Kessell ER; Alvidrez J; McConnell WA; Shumway M

2009-10-01

10

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

Science.gov (United States)

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

Hentabli, Kamel

11

Thermal modeling of flow in the San Diego Aqueduct, California, and its relation to evaporation  

Science.gov (United States)

The thermal balance of the 26-kilometer long concrete-lined San Diego Aqueduct, a canal in southern California, was studied to determine the coefficients in a Dalton type evaporation formula. Meteorologic and hydraulic variables, as well as water temperature, were monitored continuously for a 1-year period. A thermal model was calibrated by use of data obtained during a 28-day period to determine the coefficients which best described the thermal balance of the canal. The coefficients applicable to the San Diego Aqueduct are similar to those commonly obtained from lake evaporation studies except that a greater evaporation at low windspeeds is indicated. The model was verified by use of data obtained during 113 days which did not include the calibration data. These data verified that the derived wind function realistically represents the canal evaporation. An annual evaporation of 2.08 meters was computed which is about 91 percent of the amount of water evaporated annually from nearby class A evaporation pans. (Kosco-USGS)

Jobson, Harvey E.

1980-01-01

12

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

Directory of Open Access Journals (Sweden)

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

Silvia Ventura Luna

2010-01-01

13

Environmental assessment related to the operation of San Miguel uranium project, WM-20, Phoneer Uravan, Inc  

Energy Technology Data Exchange (ETDEWEB)

An environmental assessment was prepared by the staff of the U.S. Nuclear Regulatory Commission, Office of Nuclear Material Safety and Safeguards, in response to a request for technical assistance from the State of Colorado in connection with licensing action on the proposed Pioneer Uravan, Inc., San Miguel uranium project. The major components of discussion are (1) a summary and recommended licensing conditions, (2) a description of the site environment and the proposed facility operation as well as alternatives in comparison with NRC's performance objectives for tailings management, and (3) a radiological assessment for estimating the facility's compliance with 10 CFR 20 and 40 CFR 190 dose regulations. The NRC recommends licensing the proposed mill subject to stipulated license conditions.

1981-01-01

14

Environmental assessment related to the operation of San Miguel uranium project, WM-20, Phoneer Uravan, Inc  

International Nuclear Information System (INIS)

[en] An environmental assessment was prepared by the staff of the U.S. Nuclear Regulatory Commission, Office of Nuclear Material Safety and Safeguards, in response to a request for technical assistance from the State of Colorado in connection with licensing action on the proposed Pioneer Uravan, Inc., San Miguel uranium project. The major components of discussion are (1) a summary and recommended licensing conditions, (2) a description of the site environment and the proposed facility operation as well as alternatives in comparison with NRC's performance objectives for tailings management, and (3) a radiological assessment for estimating the facility's compliance with 10 CFR 20 and 40 CFR 190 dose regulations. The NRC recommends licensing the proposed mill subject to stipulated license conditions

1981-01-01

15

Higher Environmental Relative Moldiness Index (ERMI) values measured in homes of asthmatic children in Boston, Kansas City, and San Diego.  

UK PubMed Central (United Kingdom)

OBJECTIVE: Mold in water-damaged homes has been linked to asthma. Our objective was to test a new metric to quantify mold exposures in asthmatic children's homes in three widely dispersed cities in the United States. METHODS: The Environmental Relative Moldiness Index (ERMI) metric was created by the US Environmental Protection Agency, with assistance by the Department of Housing and Urban Development (HUD), to quantify mold contamination in US homes. The ERMI values in homes of asthmatic children were determined for the three widely dispersed cities of Boston, Kansas City, and San Diego. RESULTS: Asthmatic children in Boston (n = 76), Kansas City (n = 60), and San Diego (n = 93) were found to be living in homes with significantly higher ERMI values than were found in homes randomly selected during the 2006 HUD American Healthy Homes Survey (AHHS) from the same geographic areas (n = 34, 22, and 28, respectively). Taken together, the average ERMI value in the homes with an asthmatic child was 8.73 compared to 3.87 for the AHHS homes. In addition, Kansas City homes of children with "Mild, Moderate, or Severe Persistent Asthma" had average ERMI value of 12.4 compared to 7.9 for homes of children with only "Mild Intermittent Asthma." Aspergillus niger was the only mold of the 36 tested which was measured in significantly greater concentration in the homes of asthmatic children in all three cities. CONCLUSION: High ERMI values were associated with homes of asthmatic children in three widely dispersed cities in the United States.

Vesper S; Barnes C; Ciaccio CE; Johanns A; Kennedy K; Murphy JS; Nunez-Alvarez A; Sandel MT; Cox D; Dewalt G; Ashley PJ

2013-03-01

16

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

International Nuclear Information System (INIS)

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

1991-01-01

17

Estimating alcohol-related premature mortality in san francisco: use of population-attributable fractions from the global burden of disease study  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background In recent years, national and global mortality data have been characterized in terms of well-established risk factors. In this regard, alcohol consumption has been called the third leading "actual cause of death" (modifiable behavioral risk factor) in the United States, after tobacco use and the combination of poor diet and physical inactivity. Globally and in various regions of the world, alcohol use has been established as a leading contributor to the overall burden of disease and as a major determinant of health disparities, but, to our knowledge, no one has characterized alcohol-related harm in such broad terms at the local level. We asked how alcohol-related premature mortality in San Francisco, measured in years of life lost (YLLs), compares with other well-known causes of premature mortality, such as ischemic heart disease or HIV/AIDS. Methods We applied sex- and cause-specific population-attributable fractions (PAFs) of years of life lost (YLLs) from the Global Burden of Disease Study to 17 comparable outcomes among San Francisco males and females during 2004-2007. We did this in three ways: Method 1 assumed that all San Franciscans drink like populations in developed economies. These estimates were limited to alcohol-related harm. Method 2 modified these estimates by including several beneficial effects. Method 3 assumed that Latino and Asian San Franciscans drink alcohol like populations in the global regions related to their ethnicity. Results By any of these three methods, alcohol-related premature mortality accounts for roughly a tenth of all YLLs among males. Alcohol-related YLLs among males are comparable to YLLs for leading causes such as ischemic heart disease and HIV/AIDS, in some instances exceeding them. Latino and black males bear a disproportionate burden of harm. Among females, for whom estimates differed more by method and were smaller than those for males, alcohol-related YLLs are comparable to leading causes which rank somewhere between fifth and fourteenth. Conclusions Alcohol consumption is a major contributor to premature mortality in San Francisco, especially among males. Interventions to avert alcohol-related harm in San Francisco should be taken at the population level and deserve the same attention that is given to other major risk factors, such as smoking or obesity.

Katcher Brian S; Reiter Randy B; Aragón Tomás J

2010-01-01

18

Isolation of caliciviruses from skunks that are antigenically and genotypically related to San Miguel sea lion virus.  

UK PubMed Central (United Kingdom)

Caliciviruses were isolated from feces of skunks imported from the north central United States to Canada. Virus isolation was accomplished using adenovirus-transformed human kidney (293) cells, swine testes and Vero cells. Plaque size variants were presented, but there was no apparent difference in virus morphology by negative stain or immune electron microscopy. Pigs infected with skunk calicivirus had a slightly elevated body temperature at 3 days postinfection. Although the infected animals seroconverted, no overt clinical signs were observed. Purified infectious genomic skunk calicivirus RNA behaved exactly as San Miguel sea lion virus (SMSV) 1 and 4 genomic RNA in cell culture transfection studies. Of the cell types examined, only primary porcine kidney, 293 and Vero cells supported viral replication. No viral replication was detected in cells of bovine, equine, ovine, caprine or feline origin. The skunk caliciviruses contained a single capsid protein with a relative mobility similar to SMSV virus 1 and 4 capsid proteins. The capsid protein was positive by Western blot analysis with SMSV and vesicular exanthema of swine virus (VESV) antisera. Purified RNA from skunk calicivirus infected cells was subjected to reverse transcription followed by polymerase chain reaction. Nucleotide sequences were identified that had greater than 85% similarity to the 2C and RNA polymerase gene regions of SMSV 1 and 4 and VESV A48. Predicted amino acid sequences of these regions were greater than 95% similar and the partial coding sequence of the polymerase gene contained the YGDD sequence common to positive-strand RNA virus polymerases.

Seal BS; Lutze-Wallace C; Kreutz LC; Sapp T; Dulac GC; Neill JD

1995-06-01

19

Relación de Blidingia minima (Ulvales, Chlorophyta) con factores ambientales en Punta Maqueda (golfo San Jorge, Argentina)/ Relation between Blidingia minima (Ulvales, Chlorophyta) and environmental factors at Punta Maqueda (San Jorge Gulf, Argentina)  

Scientific Electronic Library Online (English)

Full Text Available Abstract in spanish Los factores ambientales relacionados con Blidingia minima (Nägeli ex Kützing) Kylin se estudiaron en Punta Maqueda (golfo San Jorge, Argentina) utilizando análisis de correspondencias, modelos log-lineales para tablas trifactoriales, análisis de redundancia y ANOVA. El grosor del talo está inversamente relacionado con irradiación, temperatura y vientos; la abundancia está directamente relacionada con alta temperatura e irradiación; el tamaño celular, la ramifica (more) ción y el ancho de los talos se relacionan directamente con agitación del agua y altas temperaturas. Los talos más largos se encontraron en niveles intermareales bajos. En primavera se observaron las mayores biomasas; en verano se recolectaron talos más grandes y en otoño se encontraron céspedes de paredes gruesas con máxima proporción de talos fértiles. La proporción de talos fértiles fue mayor en el nivel más alto del intermareal y mayor en otoño y primavera con relación a verano e invierno, en ambos niveles Abstract in english Environmental factors affecting Blidingia minima (Nägeli ex Kützing) Kylin were studied at Punta Maqueda (San Jorge Gulf, Argentina). Detrended correspondence analysis, redundancy analysis, log-linear models for trifactorial tables and ANOVA were used. Wall thickness is inversely related to temperature, irradiation and winds. Relative abundance is directly related to high temperature and irradiation; branches and cell size relate directly to low surge exposure and high (more) temperature. Longer thalli were found at lower coastal levels. Highest biomass was observed in spring; bigger thalli were collected during summer; in autumn a turf was present with the highest proportion of fertile thalli and thick walled thalli. A greater proportion was found of reproductive thalli at the higher intertidal level, and in autumn and spring in comparison to summer and winter at both intertidal levels

Perales, Susana G; Boraso, Alicia L

2006-07-01

20

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

CERN Multimedia

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

Maximilien Brice

2011-01-01

 
 
 
 
21

Poro-mechanics: from linear to nonlinear poro-elasticity and poro-visco-elasticity; Poromecanique: de la poroelasticite lineaire a la poroelasticite non lineaire et la poroviscoelasticite  

Energy Technology Data Exchange (ETDEWEB)

Due to the impact on productivity and oil an place estimates, reliable modeling of rock behavior is essential in reservoir engineering. This paper examines several aspects of rock poro-elastic behavior within the framework of Biot's mechanics of fluid saturated porous solids. Constitutive laws of linear and nonlinear poro-elasticity are first determined from a fundamental stress decomposition, which allows to clearly connect linear and nonlinear models. Concept of effective stress and rock compressibility are considered. Linear incremental stress-strain relations are derived from the proposed nonlinear constitutive law by defining tangent elastic properties. These characteristics are naturally functions of strains and pore pressure, but explicit expressions as functions of stresses and pore pressure are established herein. Experiments performed on a reservoir sandstone illustrate these points. A constitutive law of poro-visco-elasticity is finally presented and applied to experimental data obtained on clay. (authors)

Bemer, E.; Bouteca, M.; Vincke, O. [Institut Francais du Petrole (IFP), 92 - Rueil-Malmaison (France); Hoteit, N.; Ozanam, O. [Agence Nationale pour la Gestion des Dechets Radioactifs ANDRA, 92 - Chatenay Malabry (France)

2001-07-01

22

SAN PEDRO GEODATA BROWSER  

Science.gov (United States)

The San Pedro Data Browser was developed by the Landscape Ecology Branch of the U.S. Environmental Protection Agency (Las Vegas, NV). The goal of the Landscape Sciences Program is to improve decision-making relative to natural and human resource management through the development...

23

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

Directory of Open Access Journals (Sweden)

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

María Silvia Japas; Nilda Esther Urbina; Patricia Sruoga

2010-01-01

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

Scientific Electronic Library Online (English)

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

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

2010-12-01

25

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

Directory of Open Access Journals (Sweden)

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

Montes Hugo Martín A.; Álvarez Borrego Saúl

2005-01-01

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

International Nuclear Information System (INIS)

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

2003-01-01

27

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

Scientific Electronic Library Online (English)

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

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

2008-06-01

28

Health cobenefits and transportation-related reductions in greenhouse gas emissions in the San Francisco Bay area.  

UK PubMed Central (United Kingdom)

OBJECTIVES: We quantified health benefits of transportation strategies to reduce greenhouse gas emissions (GHGE). METHODS: Statistics on travel patterns and injuries, physical activity, fine particulate matter, and GHGE in the San Francisco Bay Area, California, were input to a model that calculated the health impacts of walking and bicycling short distances usually traveled by car or driving low-emission automobiles. We measured the change in disease burden in disability-adjusted life years (DALYs) based on dose-response relationships and the distributions of physical activity, particulate matter, and traffic injuries. RESULTS: Increasing median daily walking and bicycling from 4 to 22 minutes reduced the burden of cardiovascular disease and diabetes by 14% (32,466 DALYs), increased the traffic injury burden by 39% (5907 DALYS), and decreased GHGE by 14%. Low-carbon driving reduced GHGE by 33.5% and cardiorespiratory disease burden by less than 1%. CONCLUSIONS: Increased physical activity associated with active transport could generate a large net improvement in population health. Measures would be needed to minimize pedestrian and bicyclist injuries. Together, active transport and low-carbon driving could achieve GHGE reductions sufficient for California to meet legislative mandates.

Maizlish N; Woodcock J; Co S; Ostro B; Fanai A; Fairley D

2013-04-01

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Relación entre algunas técnicas de reparación de hipospadias y complicaciones en el Hospital Universitario San Vicente de Paul 1986- 2005/ Relation between some thecniques of hypospadias repair and complications: Universitary San Vicente de Paul Hospital 1986-2005  

Scientific Electronic Library Online (English)

Full Text Available Abstract in spanish Objetivo: El éxito en la reparación quirúrgica de hipospadias depende de variables propias del paciente y de variables relacionadas con la técnica quirúrgica. El cirujano dispone de varias técnicas quirúrgicas, lo que obliga ha escoger la técnica mas indicada para obtener los mejores resultados. El objeto de este estudio retrospectivo fue evaluar las técnicas quirúrgicas utilizadas y su asociación con complicaciones postoperatorias. Metodología: Es un estudio (more) descriptivo y retrospectivo en el cual se revisaron las historia clínicas de 207 pacientes sometidos a corrección de hipospadias en el Hospital Universitario San Vicente de Paúl, entre enero de 1986 y diciembre de 2005. Resultados: Se revisaron un total de 207 historias clínicas, la edad de cirugía fue entre 1 y 14 años de edad. La frecuencia de las técnicas utilizadas fueron: Duckett 38,7%, Mathieu 30%, MAGPI 11.6%, Snodgrass 6.3% y otras técnicas representaron en pacientes 14%. Las complicaciones postoperatorias fueron: Hemorrágicas (1,9%), Infecciosas (1.9%), divertículos uretrales (3,9%), cuerda ventral residual (5.8%), dehiscencias (8,7%), estenosis (23,2%) y fístulas (41%). El desarrollo de estenosis es un factor de riesgo para la aparición de fístulas, y el uso de PDS como material de sutura fue un factor protector estadísticamente significativo. El cubrimiento de la uretroplastia con otra capa de tejido, la edad para la corrección, y el tiempo que permaneció el paciente con derivación uretral no resultaron variables estadísticamente significativas para la prevención de complicaciones postoperatorias. La estenosis y el uso de PDS como material de sutura si resultaron variables significativas en la reducción de complicaciones postoperatorias (p Abstract in english Objective: The incidence of hypospadias has been increasing in the last decades. Successful hypospadias repair depends on patient factors and surgical technique, a factor closely related to the surgeon?s experience. The aim of this descriptive, retrospective study was to determine the preferred technique and its association with postoperative complications. Methods: Charts of 207 patients who had had hypospadias repair performed between January 1986 and December 2005, in (more) the San Vicente de Paul University Hospital, were reviewed. Results: Hypospadias repair was performed in patients between 1 and 14 years of age. Duckett technique was performed in 38.7%, Mathiew technique in 30% MAGPI technique in 11.6%, Snodgrass in 6.3% and other techniques in 14% of the patients. Postoperative complications included hemorrhagic complications (1.9%), infectious complications (1.9%), urethral diverticular dilatation (3.9%), residual ventral chordee (5.8%), failure of urethroplasty, (8.7%), strictures (23%), and fistulas (41%). Strictures was the most important risk factor for postoperative fistulas (p0.05). Patients with hypospadias repair with PDS sutures had a lower incidence of postoperative fistulas (p

Martínez Montoya, J.A.; Chams Anturi, A.A.; Contreras Pérez, D.F.

2008-03-01

30

Combustion Testing of San Miguel Lignite.  

Science.gov (United States)

Results from pilot plant testing of the San Miguel lignite are: (1) The ash fouling furnace is an empirical tool which provides good information on relative fouling potential of various fuels. In the case of San Miguel lignite tests suggest a severe fouli...

M. L. Jones G. M. Goblirsch

1982-01-01

31

Spontaneous abortions and birth defects related to tap and bottled water use, San Jose, California, 1980-1985  

Energy Technology Data Exchange (ETDEWEB)

We recently studied pregnancies occurring during 1980-1985 in four study areas in Santa Clara County, California. Two of the areas were exposed to solvent-contaminated drinking water during 1980 and 1981, and two were unexposed. There was an overall excess of spontaneous abortions among women who reported any tapwater consumption during the first trimester of pregnancy compared with those who reported no tapwater consumption (odds ratio (OR) = 4.0; 95% confidence interval (CI) = 1.8-9.1), regardless of exposure to the contaminated water. The odds ratio for spontaneous abortion for women reporting any vs no tapwater was 6.9 (95% CI = 2.7-17.7) after adjustment for numerous potential confounders using multiple logistic regression analyses. The elevated odds ratio of spontaneous abortion was seen among tapwater drinkers who used no filters or softener-type filters but not among women who reported use of active filters. Spontaneous abortion rates were reduced in women who reported any vs no bottled water consumption (OR = 0.26; 95% CI = 0.16-0.43). Among women who reported no tapwater consumption, no birth defects occurred among 263 live births; in comparison, among women who reported tapwater consumption, 4% of 908 live births had defects (P = 0.0001). We observed no relation between birth defects and bottled water use.

Wrensch, M.; Swan, S.H.; Lipscomb, J.; Epstein, D.M.; Neutra, R.R.; Fenster, L. (Department of Epidemiology and Biostatistics, University of California, San Francisco (United States))

1992-03-01

32

Linear study and bundle adjustment data fusion; Application to vision localization; Recherche lineaire et fusion de donnees par ajustement de faisceaux; Application a la localisation par vision  

Energy Technology Data Exchange (ETDEWEB)

The works presented in this manuscript are in the field of computer vision, and tackle the problem of real-time vision based localization and 3D reconstruction. In this context, the trajectory of a camera and the 3D structure of the filmed scene are initially estimated by linear algorithms and then optimized by a nonlinear algorithm, bundle adjustment. The thesis first presents a new technique of line search, dedicated to the nonlinear minimization algorithms used in Structure-from-Motion. The proposed technique is not iterative and can be quickly installed in traditional bundle adjustment frameworks. This technique, called Global Algebraic Line Search (G-ALS), and its two-dimensional variant (Two way-ALS), accelerate the convergence of the bundle adjustment algorithm. The approximation of the re-projection error by an algebraic distance enables the analytical calculation of an effective displacement amplitude (or two amplitudes for the Two way-ALS variant) by solving a degree 3 (G-ALS) or 5 (Two way-ALS) polynomial. Our experiments, conducted on simulated and real data, show that this amplitude, which is optimal for the algebraic distance, is also efficient for the Euclidean distance and reduces the convergence time of minimizations. One difficulty of real-time tracking algorithms (monocular SLAM) is that the estimated trajectory is often affected by drifts: on the absolute orientation, position and scale. Since these algorithms are incremental, errors and approximations are accumulated throughout the trajectory and cause global drifts. In addition, a tracking vision system can always be dazzled or used under conditions which prevented temporarily to calculate the location of the system. To solve these problems, we propose to use an additional sensor measuring the displacement of the camera. The type of sensor used will vary depending on the targeted application (an odometer for a vehicle, a lightweight inertial navigation system for a person). We propose to integrate this additional information directly into an extended bundle adjustment, by adding a constraint term in the weighted cost function. We evaluate three methods (based on machine learning or regularization) that dynamically select the weight associated to the constraint and show that these methods can be used in a real time multi-sensor SLAM, and validate them with different types of constraint on the orientation or on the scale. Experiments conducted on real video sequences show that this technique of constrained bundle adjustment reduces the drifts observed with the classical vision algorithms and improves the global accuracy of the positioning system. (author) [French] Les travaux presentes dans ce manuscrit concernent le domaine de la localisation et la reconstruction 3D par vision artificielle. Dans ce contexte, la trajectoire d'une camera et la structure 3D de la scene filmee sont initialement estimees par des algorithmes lineaires puis optimisees par un algorithme non-lineaire, l'ajustement de faisceaux. Cette these presente tout d'abord une technique de recherche de l'amplitude de deplacement (recherche lineaire), ou line search pour les algorithmes de minimisation iterative. La technique proposee est non iterative et peut etre rapidement implantee dans un ajustement de faisceaux traditionnel. Cette technique appelee recherche lineaire algebrique globale (G-ALS), ainsi que sa variante a deux dimensions (Two way-ALS), accelerent la convergence de l'algorithme d'ajustement de faisceaux. L'approximation de l'erreur de reprojection par une distance algebrique rend possible le calcul analytique d'une amplitude de deplacement efficace (ou de deux pour la variante Two way-ALS), par la resolution d'un polynome de degre 3 (G-ALS) ou 5 (Two way-ALS). Nos experimentations sur des donnees simulees et reelles montrent que cette amplitude, optimale en distance algebrique, est performante en distance euclidienne, et permet de reduire le temps de convergence des minimisations. Une difficulte des algorithmes de localis

Michot, J.

2010-12-09

33

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

Scientific Electronic Library Online (English)

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

Ventura Luna, Silvia

2010-06-01

34

Relative abundance and distribution of fishes within an established Area of Critical Environmental Concern, of the Amargosa River Canyon and Willow Creek, Inyo and San Bernardino Counties, California  

Science.gov (United States)

The Amargosa River Canyon of San Bernardino and Inyo County, California, has been designated by the Bureau of Land Management as an Area of Critical Environmental Concern, due in part to its unique flora and fauna. As a task of the Area of Critical Environmental Concern implementation plan, a survey of native fishes was conducted from June 21 to August 12, 2010. Geographic Information System tools were used to map sampling locations, which were spaced at 50-meter intervals. Global Positioning Systems were used to locate sampling stations, and stations with adequate water for successful trapping were sampled with baited minnow traps. Amargosa River pupfish (Cyprinodon nevadensis amargosae) and speckled dace (Rhinichthys osculus spp.) were widespread throughout Armargosa River Canyon. Throughout the study area 8,558 pupfish were captured at 194 stations; 3,472 speckled dace were captured at 210 stations; 238 red-swamp crayfish (Procambarus clarkia) were captured at 83 stations; and 1,095 western mosquitofish (Gambusia affinus) were captured at 110 stations. Pupfish were most abundant in open water habitat with native riparian vegetation, and they were significantly less abundant where the stream was completely covered by cattails or where saltcedar (Tamarix sp.) dominated the riparian corridor. There was no relationship between stream cover and speckled dace distribution. Non-native western mosquitofish and red-swamp crayfish densities were significantly higher in stream reaches dominated by saltcedar. The continued spread of saltcedar threatens to negatively affect pupfish and potentially reduce speckled dace abundance throughout the Amargosa River Canyon. This study can serve as baseline information for observing native fish populations in the future, as related to potential changes to the Amargosa River Canyon ecosystem.

Scoppettone, G. Gary; Hereford, Mark E.; Rissler, Peter H.; Johnson, Danielle M.; Salgado, Antonio

2011-01-01

35

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

Scientific Electronic Library Online (English)

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

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

2009-01-01

36

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

Directory of Open Access Journals (Sweden)

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

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

2009-01-01

37

Technical evaluation of the susceptibility of safety-related systems to flooding caused by the failure of non-category 1 systems for the San Onofre Nuclear Power Plant, Unit 1  

Energy Technology Data Exchange (ETDEWEB)

This report documents the technical evaluation of Southern California Edison Company's San Onofre Nuclear Power Plant, Unit 1, to determine whether the failure of any non-Category 1 (seismic) equipment could result in a condition, such as flooding, that might potentially adversely affect the performance of safety-related equipment required for the safe shutdown of the facility or to mitigate the consequences of an accident. Criteria developed by the US Nuclear Regulatory Commission were used to evaluate the acceptability of the existing protection as well as measures taken by Southern California Edison Company to minimize the danger of flooding and to protect safety-related equipment.

Latorre, V.R.; Victor, R.A.

1980-11-01

38

Technical evaluation of the susceptibility of safety-related systems to flooding caused by the failure of non-category 1 systems for the San Onofre Nuclear Power Plant, Unit 1  

International Nuclear Information System (INIS)

This report documents the technical evaluation of Southern California Edison Company's San Onofre Nuclear Power Plant, Unit 1, to determine whether the failure of any non-Category 1 (seismic) equipment could result in a condition, such as flooding, that might potentially adversely affect the performance of safety-related equipment required for the safe shutdown of the facility or to mitigate the consequences of an accident. Criteria developed by the US Nuclear Regulatory Commission were used to evaluate the acceptability of the existing protection as well as measures taken by Southern California Edison Company to minimize the danger of flooding and to protect safety-related equipment

1980-01-01

39

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

Scientific Electronic Library Online (English)

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

Sepulveda, José Antonio Miranda

2013-12-01

40

San Juan Uchucuanicu: évolution historique  

Directory of Open Access Journals (Sweden)

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

Locker, Hugues; Piel, Jean

1975-01-01

 
 
 
 
41

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

Science.gov (United States)

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

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

2013-03-01

42

Control of flowering in bougainvillea "san diego red.": metabolism of benzyladenine and the action of gibberellic Acid in relation to short day induction.  

Science.gov (United States)

Benzyladenine (BA) and short day (SD) induction promote and gibberellic acid (GA) inhibits flowering in Bougainvillea "San Diego Red." GA is an overriding vegetative signal maintaining plants in a vegetative state even when BA is applied in SD conditions. SD promotes a more rapid conversion of BA to the ribotide and other "polar derivatives" (containing adenine derivatives). This effect of SD on BA metabolism is seen in root, stem, and apical bud tissues and is completely prevented by prior or simultaneous application of GA. GA treatment reduces the rate of polar derivative formation to that found in plants held in long days. The working hypothesis is that SD promotes flowering in Bougainvillea owing to reduced transport of gibberellins from leaves to roots and apical buds permitting metabolism of cytokinin, and perhaps other purine bases, to more polar forms that are more readily translocated and active in promoting reproductive development of the inflorescences axes. PMID:16661025

Even-Chen, Z; Sachs, R M; Hackett, W P

1979-10-01

43

Control of flowering in bougainvillea "san diego red.": metabolism of benzyladenine and the action of gibberellic Acid in relation to short day induction.  

UK PubMed Central (United Kingdom)

Benzyladenine (BA) and short day (SD) induction promote and gibberellic acid (GA) inhibits flowering in Bougainvillea "San Diego Red." GA is an overriding vegetative signal maintaining plants in a vegetative state even when BA is applied in SD conditions. SD promotes a more rapid conversion of BA to the ribotide and other "polar derivatives" (containing adenine derivatives). This effect of SD on BA metabolism is seen in root, stem, and apical bud tissues and is completely prevented by prior or simultaneous application of GA. GA treatment reduces the rate of polar derivative formation to that found in plants held in long days. The working hypothesis is that SD promotes flowering in Bougainvillea owing to reduced transport of gibberellins from leaves to roots and apical buds permitting metabolism of cytokinin, and perhaps other purine bases, to more polar forms that are more readily translocated and active in promoting reproductive development of the inflorescences axes.

Even-Chen Z; Sachs RM; Hackett WP

1979-10-01

44

SANS studies of polymers  

Energy Technology Data Exchange (ETDEWEB)

Before small-angle neutron scattering (SANS), chain conformation studies were limited to light and small angle x-ray scattering techniques, usually in dilute solution. SANS from blends of normal and labeled molecules could give direct information on chain conformation in bulk polymers. Water-soluble polymers may be examined in H/sub 2/O/D/sub 2/O mixtures using contrast variation methods to provide further information on polymer structure. This paper reviews some of the information provided by this technique using examples of experiments performed at the National Center for Small-Angle Scattering Research (NCSASR).

Wignall, G.D.

1984-10-01

45

San Salvador Microbial Observatory  

Science.gov (United States)

This web site is home of the San Salvador Microbial Observatory, a project investigating the anhydrophilic, halotolerant microbial mats of San Salvador, Bahamas. This project has been developed to address the influence water availability has on structural diversification, community composition, production, and carbon sequestration in microbial mats. The web site includes general information about the project, a research description plan, an introduction to microbial mats, links to other microbial observatories and interesting sites, and a collection of photos. This is a helpful resource for those investigating microbial mat communities.

Steppe, Tim; Institute Of Marine Sciences, University O.

46

Energy consumption control by means of a multiple linear model. Energieverbruiken bewaken met een meervoudig lineair model  

Energy Technology Data Exchange (ETDEWEB)

Continuous registration of the consumption of the most important energy flows in buildings is necessary in order to control the energy consumption. The recorded consumption data must be compared with targeted consumption data, which are deducted from a previously determined standard consumption of energy. The target consumption of an energy flow during a certain period can be calculated by means of a physical model or by means of a statistical model. The first method is time-consuming. The second model assumes a linear relation between the energy consumption of an energy flow and one or more impact factors. Two methods to determine the impact factors in a multiple linear model are distinguished: the use of an energy balance of a building, and the use of multiple linear regression analysis. The last method is explained by means of an example with only one impact factor (natural gas consumption for space heating in a school building). In 1987 a new method to calculate degree days has been developed and implemented in ERBIS (Energy Registration and Control computer program). A brief description is given of to how to use this program. 4 figs., 6 tabs., 4 refs.

Van Beek, C.P.J.M. (Ingenieursbureau Van Beek, Arnhem (Netherlands))

1992-01-01

47

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

Scientific Electronic Library Online (English)

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

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

2007-12-01

48

San Antonio Career Awareness Demonstration Grant.  

Science.gov (United States)

The project seeks to provide students of the San Antonia School with exposure to the world of work; to provide stimulation of the student interest and attitude as related to career development; to acquaint elementary teachers with career education as a na...

M. C. Hanson

1973-01-01

49

78 FR 53243 - Safety Zone; TriRock San Diego, San Diego Bay, San Diego, CA  

Science.gov (United States)

...waters of the San Diego Bay, San Diego, CA, in support of a triathlon bay swim. This safety zone is necessary to provide for the...this rule because the logistical details of the San Diego Bay triathlon swim were not finalized nor presented to the Coast Guard...

2013-08-29

50

Coarse Clasts Imply Substantial Mid-Late Miocene Slip and Complex Kinematics on Miller Creek and Related Faults, East San Francisco Bay Area  

Science.gov (United States)

Coarse-clast study is providing new insight into Neogene slip on poorly understood but potentially important structures between the Hayward and Calaveras faults. The Miller Creek fault (MCF) is a comparatively little studied NW-striking feature exposed in the East Bay Hills east of EBMUD’s Upper San Leandro Reservoir (USLR). Stratigraphic separation on the MCF is locally substantial, with Cretaceous Great Valley Group strata to the west juxtaposed against Neogene units to the east. Outcrop relationships generally indicate a steep westward dip and reverse separation on the MCF, although poorly exposed outcrops suggest near-vertical and eastward dips and/or normal separation on some of the fault's multiple strands. Previous workers have suggested that the MCF continues north as the Moraga fault through the Berkeley Hills and the Moraga and/or Pinole fault east of Point Pinole. The Pinole fault may be an eastern trace of the Moraga system or a separate structure; map geometries suggest steeper dips on it than on the Moraga fault proper. East of the MCF, clast assemblages in the Contra Costa Group (CCG) at USLR are dominated by Coast Range-derived clasts including red, brown, black, and green chert; greywacke; sandstone; vein quartz; Tertiary mafic volcanics; metasediments; blueschist; and metavolcanics. Monterey Group porcellanite is locally present in small quantities. The basal CCG at USLR interfingers with the underlying San Pablo Group (SPG). Age constraints on the CCG at USLR are given by an ~6.2-Ma tuff in the mid- to upper CCG in adjacent Cull Canyon. At Happy Valley, ~15 km NNW of USLR, clast assemblages containing greywacke, blueschist, vein quartz, and metavolcanics suggest that a conglomerate of poorly constrained age (7-9 Ma?) enclosed in typical upper SPG strata and identified as upper SPG by previous workers may actually be a lense of CCG; we tentatively interpret this as a northward continuation of the interfingering CCG-SPG relationship at USLR. West of the Pinole fault/east trace of the Moraga fault at Point Pinole, ~30 km NW of USLR, post-9 Ma conglomerates in the lower Garrity Member of the CCG are dominated by Franciscan-derived clasts—including greywacke; vein quartz; blueschist; and red, green, brown, and black chert—with a lesser component of Great Valley Group sandstone, Tertiary volcanics, and Monterey porcellanite. Upper Garrity conglomerates, which at ~6 Ma are roughly coeval with CCG strata at Cull Canyon, are dominated by Monterey Group porcellanite and laminated chert. Based on similarity in clast compositions, we infer that the Garrity and USLR depocenters were proximal to one another during lower Garrity time (~9 Ma). The change to a Monterey-dominated clast assemblage differing markedly from that in coeval strata at USLR may imply that by upper Garrity time the two depocenters were no longer adjacent. If so, this suggests as much as ~30-35 km of dextral strike slip on the MCF-Moraga fault-Pinole fault trend between 6 and 9 Ma and further implies that the MCF may have been an important strand of the Neogene East Bay slip corridor. Contraction across the MCF thus may be a subordinate overprint on a history dominated by dextral strike slip.

Buising, A. V.; Walker, J. P.; Allen, J. R.

2009-12-01

51

San Joaquin-Tulare Conjunctive Use Model: Detailed model description  

Energy Technology Data Exchange (ETDEWEB)

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

Quinn, N.W.T.

1992-03-01

52

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

Directory of Open Access Journals (Sweden)

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

Rostami B.; Kharrat R.; Ghotbi C.; Tabatabaie S.H.

2009-01-01

53

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

CERN Multimedia

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

Michael Hoch

2012-01-01

54

78 FR 35593 - Special Local Regulation; Christmas Boat Parade, San Juan Harbor; San Juan, PR  

Science.gov (United States)

...Special Local Regulation; Christmas Boat Parade, San Juan Harbor; San Juan, PR AGENCY: Coast Guard, DHS. ACTION: Notice of...establish a special local regulation on the waters of San Juan Harbor in San Juan, Puerto Rico during the...

2013-06-13

55

1974 Meeting in San Antonio  

Digital Repository Infrastructure Vision for European Research (DRIVER)

San Antonio will be the site of the 1974 MLA Annual Meeting, and the program will emphasize expanding the role of health science libraries. Tours, as well as activities available in San Antonio, are described. The Convention Center itself, and the convention hotel, the Hilton Palacio del Rio, are me...

Bowden, Virginia

56

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

Scientific Electronic Library Online (English)

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

Mestre, Ana

2011-06-01

57

Combustion testing of San Miguel lignite  

Energy Technology Data Exchange (ETDEWEB)

Results from pilot plant testing of the San Miguel lignite are: (1) The ash fouling furnace is an empirical tool which provides good information on relative fouling potential of various fuels. In the case of San Miguel lignite tests suggest a severe fouling problem is conventional boiler designs are employed. (2) No effect in either deposition rate or deposit strength was seen when MgO and CaCO/sub 3/ were used at additives. For these tests a single addition rate was utilizing two different injection points in the system. (3) No bed agglomeration was noted under the varied run conditions used in testing of this lignite fuel. (4) The atmospheric fluidized-bed combustor (AFBC) NO/sub x/ level emitted in the flue gas were always less than the NSPS limit of 0.6 lbs NO/sub 2//10/sup 6/ Btu. (5) Utilization of inherent alkali was less than that observed for North Dakota lignites. It was possible to meet NSPS standards of 90 percent sulfur capture using limestone addition. (6) Pulverized-coal combustion of San Miguel lignite resulted in a larger portion of <1 ..mu..m size particulates than has been noted in similar tests with the Arapahoe subbituminous coal and the Ledbetter Texas lignite. (7) The composition of particulates from P-C combustion of San Miguel lignite has a more varied composition than has been seen in testing with other types of coal. Use of lower grade fuels such as the lignite from the San Miguel mine is inevitable if we are to meet the expanding needs for energy in the United States today. To make use of these different fuels extensive testing on laboratory and pilot scales will be beneficial in avoiding major problems due to the different characteristics these materials possess. The present successful operation of a full scale boiler using the San Miguel lignite is a good example of the value pilot scale studies can have on the road to successful operation.

Jones, M.L.; Goblirsch, G.M.

1982-01-01

58

76 FR 19781 - Protection Island and San Juan Islands National Wildlife Refuges, Jefferson, San Juan, Skagit...  

Science.gov (United States)

...10137-1265-0000 S3] Protection Island and San Juan Islands National Wildlife Refuges, Jefferson, San Juan, Skagit, Island, and Whatcom Counties...assessment (EA) for Protection Island and San Juan Islands National Wildlife Refuges...

2011-04-08

59

75 FR 51098 - Protection Island and San Juan Islands National Wildlife Refuges, Jefferson, Island, San Juan...  

Science.gov (United States)

...1265-0000-10137-S3] Protection Island and San Juan Islands National Wildlife Refuges, Jefferson, Island, San Juan, Skagit, and Whatcom Counties, WA AGENCY...assessment (EA) for Protection Island and San Juan Islands National Wildlife Refuges...

2010-08-18

60

San Bernardino County Museum  

Science.gov (United States)

The San Bernardino County Museum is a regional museum with exhibits and collections in cultural and natural history. Special exhibits, the Exploration Station live animal discovery center, extensive research collections, and public programs for adults, families, students, and children are all part of the museum experience. The Museum is surrounded by citrus groves, and orange blossoms perfume the air. The Zimmerman Citrus Kiosk explores citrus agricultural history in Southern California. Death Valley Alive! is a new traveling exhibit, available for rent, where visitors can explore the natural history and culture of the Death Valley region from its geologic beginnings 1.3 billion years ago. Online exhibits include The Importance of Museum Collections, The Barstow Fossil Beds, Motherlode of the Miocene, The Etiwanda Fan, and for kids, Mimicry, a study in camouflage and adaptation. Teacher Resources include professional development and workshops, and Trading Places, where 21 hours of time spent volunteering in the Museum earns a free program for your class. Sample opportunities include writing activities for study kits, developing post-visit activities, creating a museum gallery guide, translating student materials into Spanish, or developing an independent idea. There are programs for youth, Scouts, and adults, as well as various publications available in anthropology, archeology, biology, geology and history.

 
 
 
 
61

Distribución de los suelos en función del relieve y de la neotectónica en la región sureste de la provincia de San Juan Distribution of soils in relation to relief and neotectonic activity within the tectonic depression of the Tulum valley, in the south-eastern sector of San Juan province  

Directory of Open Access Journals (Sweden)

Full Text Available Se analizan las relaciones suelo-paisaje-neotectónica en la depresión tectónica conocida como valle del Tulum, en el sector sudeste de la provincia de San Juan. El área de estudio se encuentra localizada en la intersección del paralelo 31°30' S y el meridiano 68°29'O. Se reconocen tres principales unidades de relieve, A) abanico aluvial; B) sector de transición entre A y C, y C) planicie aluvial del río San Juan. Consecuentemente con las diferencias de relieves y materiales originarios, estas áreas presentan específicas asociaciones de suelos correspondientes a los Complejos El Salado, Médano de Oro y Ramón Franco respectivamente. Los relieves A y B se caracterizan por suelos Entisoles, mientras que el C por los Aridisoles. Asimismo, la actividad neotectónica, en la región, ha contribuido favorablemente en la formación de los suelos del Complejo Médano de Oro pertenecientes al Suborden Aquents.Soil-landscape-neotectonic relationships were studied in the south-eastern sector of San Juan province, Argentina, (31°30' S, 68°29' W). Three different area types were distinguished: A) alluvial fans, B) transitional area between A and C, and C) alluvial plain of San Juan river. As a result of the different landscape-relief features and parent materials, the three areas have different soil associations within the complexes, El Salado, Médano de Oro and Ramón Franco, respectively. Areas A and B are characterized by entisol order soils sequences, whereas area C has aridisol order soil. The neotectonic activity in the region has contributed favourably to the formation soils in the Médano de Oro Complex, of the Aquents suborder.

G.M. Suvires

2004-01-01

62

Characterization of the grafting copolymer EPDM-SAN; Caracterizacao do copolimero de enxertia EPDM-SAN  

Energy Technology Data Exchange (ETDEWEB)

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

Turchette, Renato; Felisberti, Maria Isabel [Universidade Estadual de Campinas, SP (Brazil). Inst. de Quimica]. E-mail: turchete@iqm.unicamp.br

2001-07-01

63

San Antonio Water System`s recycled water program: Plans/progress/case histories  

Energy Technology Data Exchange (ETDEWEB)

San Antonio, Texas established the San Antonio Water System (SAWS) to develop a water recycling program. This presentation not only reviews SAWS plans and progress to date but also the potential users that involve a variety of industries. Specific case histories will be reviewed relative to water quality, users concerns, cost estimates, and expected equipment protection.

Diehl, K. [San Antonio Water System, TX (United States). Water Resources Dept.; Puckorius, P.R. [Puckorius and Associates, Inc., Evergreen, CO (United States)

1999-11-01

64

33 CFR 110.224 - San Francisco Bay, San Pablo Bay, Carquinez Strait, Suisun Bay, Sacramento River, San Joaquin...  

Science.gov (United States)

...Bay, Carquinez Strait, Suisun Bay, Sacramento River, San Joaquin River, and connecting...Bay, Carquinez Strait, Suisun Bay, Sacramento River, San Joaquin River, and connecting...Channel, the Stockton Turning Basin, the Sacramento River Deep Water Ship Channel...

2009-07-01

65

27 CFR 9.157 - San Francisco Bay.  

Science.gov (United States)

...24,000, dated 1959, Photorevised 1980; (20) San Quentin, California, scale 1:24,000, dated 1959, Photorevised...and San Francisco Bay, crossing over the Richmond and San Quentin Quadrangle maps, to its intersection with the San...

2010-04-01

66

Marketing San Juan Basin gas  

International Nuclear Information System (INIS)

Marketing natural gas produced in the San Juan Basin of New Mexico and Colorado principally involves four gas pipeline companies with significant facilities in the basin. The system capacity, transportation rates, regulatory status, and market access of each of these companies is evaluated. Because of excess gas supplies available to these pipeline companies, producers can expect improved take levels and prices by selling gas directly to end users and utilities as opposed to selling gas to the pipelines for system supply. The complexities of transporting gas today suggest that the services of an independent gas marketing company may be beneficial to smaller producers with gas supplies in the San Juan Basin

1988-01-01

67

« Imaginez un monde sans mesure… »  

Directory of Open Access Journals (Sweden)

Full Text Available Que serait le monde, sans mesure ? Les durées, les lieux et même les directions perdraient de leur substance. Prendre la direction de Marseille ou de Lyon sans connaître la distance à parcourir pour y parvenir n'a pas de sens et rend ces lieux hors d'atteinte. Ne pas connaître le temps d'attente restant avant d'embarquer pour Los Angeles ou Paris, rend, à nos yeux de « modernes mondialisés », ces destinations inaccessibles : autant sortir son duvet et ...

Blandine Ripert; Emmanuelle Tricoire

2004-01-01

68

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

Science.gov (United States)

...2010-07-01 2010-07-01 false Safety Zone: San Juan Harbor, San Juan, PR. 165.754 Section 165.754 Navigation...Coast Guard District § 165.754 Safety Zone: San Juan Harbor, San Juan, PR. (a) Regulated area....

2010-07-01

69

76 FR 55796 - Safety Zone; TriRock Triathlon, San Diego Bay, San Diego, CA  

Science.gov (United States)

...RIN 1625-AA00 Safety Zone; TriRock Triathlon, San Diego Bay, San Diego, CA AGENCY...Competitor Group is sponsoring the TriRock Triathlon, consisting of 2000 swimmers swimming...165.T11-431 Safety Zone; TriRock Triathlon, San Diego Bay, San Diego,...

2011-09-09

70

27 CFR 9.110 - San Benito.  

Science.gov (United States)

...2009-04-01 2009-04-01 false San Benito. 9.110 Section 9.110 Alcohol...American Viticultural Areas § 9.110 San Benito. (a) Name. The name of the viticultural...area described in this section is âSan Benito.â (b) Approved maps. The...

2009-04-01

71

Status of the San Onofre neutrino oscillation experiment  

International Nuclear Information System (INIS)

[en] The San Onofre experiment is designed to investigate neutrino oscillations in the parameter space suggested by the atmospheric neutrino problem. A liquid-scintillator-based 12-ton detector will be installed at 650 m from the two units of the San Onofre power reactor. For the detection of the anti ve-induced inverse beta decay reaction a novel four-fold coincidence method is used allowing effective suppression of background at the relatively low shallow depth of 25 mwe. We report on the experimental method and demonstrate its feasibility by presenting results from recent test experiments performed with a prototype detector in the Tendon Gallery of the San Onofre Unit 2 reactor

1993-01-01

72

San Antonio Zoological Gardens & Aquarium  

Science.gov (United States)

Special services for teachers and students include programs for classes and summer camps. A variety of land and aquatic animals are on display; website contains a section on animal training; adopt-an-animal program offered. Free screensaver. Admission fees apply. Located in San Antonio, Texas.

73

Foraminifera and paleoenvironments in the Etchegoin and lower San Joaquin Formations, west-central San Joaquin valley, California  

Energy Technology Data Exchange (ETDEWEB)

The Etchegoin and San Joaquin formations preserve a rich stratigraphic record of paleoenvironments, deposition, and tectonics during the late Miocene-Pliocene development of the San Joaquin basin. The distribution of foraminifera within these formations can help constrain this record, which includes final filling of the basin, facies responses to sea level changes, and active movement on the San Andreas fault system. The distribution of foraminifera in core samples is analyzed from seven wells along the west-central San joaquin basin - four from Buena Vista oil field, one from western Elk Hills oil field, and two from an area just south of South Belridge oil field. A model of modern, shallow- to marginal-marine foraminiferal biofacies is used to interpret the Etchegoin-San Joaquin faunal distributions. This modern model distinguishes marsh, tidal channel, intertidal, lagoonal, littoral, and shallow sublittoral environments. Ongoing work calibrating this foraminiferal record to the lithologic and macrofossil records in addition to interpreted depositional systems within these formations will further define relationships between paleoenvironments, relative sea level, and tectonics.

Lagoe, M.B.; Tenison, J.A.; Buehring, R. (Univ. of Texas, Austin (United States))

1991-02-01

74

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

Directory of Open Access Journals (Sweden)

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

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

2009-01-01

75

Petroleum geochemistry of San Juan sag, Colorado  

Energy Technology Data Exchange (ETDEWEB)

Recently, oil and gas shows have been reported in Cretaceous and Tertiary rocks of the San Juan sag, and minor oil production has been established from volcanic rocks (Kirby Petroleum 1 Jynnifer well, Sec. 9, TT40N, R5E). Potential source rocks present in the San Juan sag are the upper and lower (including the Niobrara Member) Mancos Shale (Upper Cretaceous). The combined upper and lower Mancos Shale is about 660 m thick and contains between about 0.5 and 5.5% organic carbon, although most values are between about 1.5 and 2.0%. The Niobrara Member of the lower Mancos Shale has the highest overall organic matter content in the section (organic carbon averages > 2.0%). Pyrolysis and solvent extraction yields (typically 2,000-6,000 and 1,000-4,000 ppm, respectively) indicate that the upper and lower Mancos Shale and the Niobrara Member are all good potential source rocks for oil and gas. Oil-source rock correlations using gas chromatography, mass spectrometry, and stable carbon isotope ratios indicate that the upper Mancos Shale is the most likely source for the oil produced from the 1 Jynnifer discovery well. The source of the oil produced from the nearby Gramps field is less certain but may be the lower Mancos Shale or Niobrara Member. The hydrocarbon generation history of the San Juan sag is complex because of highly variable heat flow in the area caused by Oligocene volcanism. Sills have caused thermal alteration of organic matter in shales on a local scale, and larger volcanic bodies may have produced proportionally larger thermal effects. Localized heating may have caused thermal decomposition of carbonate minerals and generation of high CO{sub 2} gas deposits. Higher regional heat flow associated with volcanism was important in the source rock maturation of this area and maturation was relatively recent (Oligocene to present).

Clayton, J.L.; Gries, R.R. (Geological Survey, Denver, CO (USA))

1989-09-01

76

Source rock maturation, San Juan sag  

Energy Technology Data Exchange (ETDEWEB)

Kinetic modeling for thermal histories was simulated for seven wells in the San Juan sag honoring measured geochemical data. Wells in the area of Del Norte field (Sec. 9, T40N, R5E), where minor production has been established from an igneous sill reservoir, show that the Mancos Shale source rocks are in the mature oil generation window as a combined result of high regional heat flow and burial by approximately 2,700 m of Oligocene volcanic rocks. Maturation was relatively recent for this area and insignificant during Laramide subsidence. In the vicinity of Gramps field (Sec. 24, T33N, R2E) on the southwest flank of the San Juan sag, these same source rocks are exposed due to erosion of the volcanic cover but appear to have undergone a similar maturation history. At the north and south margins of the sag, two wells (Champlin 34A-13, Sec. 13, T35N, R4.5E; and Champlin 24A-1, Sec. 1, T44N, R5E) were analyzed and revealed that although the regional heat flow was probably similar to other wells, the depth of burial was insufficient to cause maturation (except where intruded by thick igneous sills that caused localized maturation). The Meridian Oil 23-17 South Fork well (Sec. 17, T39N, R4E) was drilled in a deeper part of the San Juan sag, and source rocks were intruded by numerous igneous sills creating a complex maturation history that includes overmature rocks in the lowermost Mancos Shale, possible CO{sub 2} generation from the calcareous Niobrara Member of the Mancos Shale, and mature source rocks in the upper Mancos Shale.

Gries, R.R.; Clayton, J.L.

1989-09-01

77

The WLPGA at San Diego; La WLPGA a San Diego  

Energy Technology Data Exchange (ETDEWEB)

More than 400 delegates and some 150 accompanying persons from more than 50 countries, participated at the 13. Forum of the World LP Gas Association which was held on 19-21 October, 2000, at San Diego (California). Some fifty companies were present at the exhibition. At the General Assembly, Jim Ferrel was re-elected for a one-year period as President of the WLPGA, while Rick Hale (LPG Business Unit Leader of BP) was named as Vice-President. M.A. Pathan, Chairman of Indian Oil, was named also Vice-President. Rene Le Marchand, President of Geostock was elected Treasurer. At the Board of Directors entered Gilles Marchal (President of TotalGaz), Kimball Chen (co-chairman and CEO - Energy Transportation Group) and A. Iori (President of Agip Gas). GPL Actualites will publish an in-depth coverage of the San Diego Forum in its next issue. (authors)

Anon.

2001-01-01

78

San Antonio Museum of Art  

Science.gov (United States)

Created in 1925 as the San Antonio Museum Association, the organization later became the San Antonio Museum of Art (SAMA) and also operated the Witte Museum of Science and History. Over its long history, the SAMA has become well-known for its collection of pre-Columbian art, along with its holdings in 18th through 20th century American and European paintings and sculpture. On their website, visitors can peruse their upcoming events, view highlights from their collection, and look over interactive features about their new and previous shows. Two of the archived highlights here include an exhibit on photography from the Mexican Revolution and their collection of Asian art. Teachers should make sure and look over their "Education" area, as it contains materials to use in the classroom, as well as information about special programs at SAMA.

79

San Diego Zoo: Panda Page  

Science.gov (United States)

This site is provided by the San Diego Zoo. Visitors may view real time footage of pandas at the zoo with Panda Cam, have their questions answered at the Panda Facts page, or read up on each panda with Panda Profiles. And of course, no one should miss the features devoted to panda Hua Mei, who seems to have spent nearly every minute of her life in front of a camera since her birth at the San Diego Zoo in 1999. Visitors can watch video clips of Hua Mei from her birth onward, or view a slide show that chronicles her progress from a tiny unrecognizable lump to a "curious and precocious cub." The Web site has been recently updated to include a short piece about Hua Mei's third birthday, celebrated in August 2002.

2002-01-01

80

Distribución de foraminíferos en el santoniense y su relación con el evento anóxico eao3: formación la luna, río San Miguel, estado Mérida/ Santonian foraminifers distribution and their relation with the oae3 anoxic event: la luna formation San Miguel river, Merida state  

Scientific Electronic Library Online (English)

Full Text Available Abstract in spanish La Formación La Luna, en la sección del río San Miguel, está caracterizada por margas negras intercaladas con calizas negras depositadas en un ambiente nerítico superior a batial superior en condiciones anóxicas/disóxicas. Cambios en lasasociaciones de foraminíferos aportan información de los factores que influyeron en la acumulación de depósitos ricos en materia orgánica durante el Santoniense. Los foraminíferos bénticos sugieren que la tendencia general en (more) la acumulación de carbono orgánico en esta área estuvo principalmente controlada por variaciones en el contenido de oxígeno en la interfase agua-sedimento. Durante el Santoniense tardío, una tendencia de enfriamiento en el clima global promovió la intensificación de vientos fríos y de la surgencia, este cambio probablemente redujo las precipitaciones que trajo como consecuencia un debilitamiento de la picnoclina y desestabilizó la estratificación de la columna de agua, disminuyendo la preservación del carbono orgánico total en una cuenca más somera. Cambios en el clima global y en la circulación oceánica resultado de la profundización y ampliación del Atlántico Ecuatorial, pudieron ser mecanismos importantes que marcan el final de la anoxia que fue común en el norte de Suramérica durante el Cretáceo Tardío. Abstract in english The La Luna Formation, in the San Miguel river section, is characterized by black marlstones interbedded with black limestones deposited under anoxic/dysoxic conditions in the upper neritic to upper bathyal environment. Changes in foraminifera assemblages provide insights into factors that influenced the accumulation of organic-rich deposits during Santonian time. The benthic foraminifera data suggests that the general trend in the accumulation of carbon-rich deposits in (more) this region was mainly controlled by variations in dissolved oxygen at the sediment-water interface in the early Santonian.During the late Santonian a cooling-trend in global climate increased wind strength and upwelling, this change probably reduced runoff causing a weakening of the pycnocline and destabilized the stratification in the water column, decreasing the total organic carbon preservation in a shallower basin. Global climate change and the establishment of full mid- and deep-water exchange in response to the deepening and widening of the Equatorial Atlantic Gateway could have been important mechanisms for ending the region-wide anoxia that was common in northern South America during the Late Cretaceous.

REY, OLGA

2007-01-01

 
 
 
 
81

77 FR 70891 - Safety Zone; Bay Bridge Construction, San Francisco Bay, San Francisco, CA  

Science.gov (United States)

...1625-AA00 Safety Zone; Bay Bridge Construction, San Francisco Bay, San Francisco...Island, CA in support of the Bay Bridge Construction Safety Zone from November 1, 2012...dangers associated with over-head construction operations. Unauthorized persons...

2012-11-28

82

Gouvernance : un constat sans concession, quelques solutions sans idéologie…  

Directory of Open Access Journals (Sweden)

Full Text Available « Le recours à la notion de gouvernance n’est-il qu’une mode, une simple manie sémantique ou bien revêt-elle une réelle densité qui lui ferait partiellement jouer un rôle dans la Cité ? ». Cette interrogation n’est pas nouvelle mais les réponses apportées par Arnaud Cabanes 1 dans son Essai sur la gouvernance publique (John Saul, 1993, p. 22), sont sans doute les plus fouillées et argumentées publiées à ce jour. Au fil d’une réflexion exigeante menée en quatre ...

Laurence Lemouzy

2004-01-01

83

The 1906 San Francisco Earthquake and Fire  

Science.gov (United States)

While it is not possible to return to San Francisco in the days after the destructive earthquake that shook the city on April 18, 1906, this well-thought out site from the Bancroft Library at Berkeley offers visitors a cornucopia of visual ephemera and primary documents related to this famed event. As part of a collaborative effort with other area institutions (including Stanford University and The Society of California Pioneers), staff members at the Bancroft Library have created this collection for the general public. On the site, visitors will find an interactive map of the city, complete with links to a host of historic photographs. Other features include a 360-degreee panoramic view of the city in ruins and a fine list of additional resources, such as relevant books, articles and dissertations of note. Overall, this is a well-presented site and one that merits several visits.

2006-01-01

84

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

Energy Technology Data Exchange (ETDEWEB)

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

El Arem, S.

2006-01-15

85

76 FR 12692 - San Juan National Forest Resource Advisory Committee  

Science.gov (United States)

...DEPARTMENT OF AGRICULTURE Forest Service San Juan National Forest Resource Advisory Committee...SUMMARY: The San Juan National Forest Resource Advisory Council...ADDRESSES: The meeting will be held at the San Juan Public Lands Center, 15 Burnett...

2011-03-08

86

75 FR 48306 - San Juan National Forest Resource Advisory Committee  

Science.gov (United States)

...DEPARTMENT OF AGRICULTURE Forest Service San Juan National Forest Resource Advisory Committee...SUMMARY: The San Juan National Forest Resource Advisory Council...ADDRESSES: The meeting will be held at the San Juan Public Lands Center, 15 Burnett...

2010-08-10

87

76 FR 40876 - San Juan National Forest Resource Advisory Committee  

Science.gov (United States)

...DEPARTMENT OF AGRICULTURE Forest Service San Juan National Forest Resource Advisory Committee...SUMMARY: The San Juan National Forest Resource Advisory Council...ADDRESSES: The meeting will be held at the San Juan Public Lands Center, 15 Burnett...

2011-07-12

88

77 FR 47358 - San Juan National Forest Resource Advisory Committee  

Science.gov (United States)

...DEPARTMENT OF AGRICULTURE Forest Service San Juan National Forest Resource Advisory Committee...SUMMARY: The San Juan National Forest Resource Advisory Council...ADDRESSES: The meeting will be held at the San Juan Public Lands Center, 15 Burnett...

2012-08-08

89

SANS from interpenetrating polymer networks  

International Nuclear Information System (INIS)

Full text: Interpenetrating polymer networks (IPNs) have been formed by combining two polymeric systems in order to gain enhanced material properties. IPNs are a combination of two or more polymers in network form with one network polymerised and/or crosslinked in the immediate presence of the other(s).1 IPNs allow better blending of two or more crosslinked networks. In this study two sets of IPNs were produced and their microstructure studied using a variety of techniques including small angle neutron scattering (SANS). The first system combined a glassy polymer (polystyrene) with an elastomeric polymer (SBS) with the glassy polymer predominating, to give a high impact plastic. The second set of IPNs contained epichlorohydrin (CO) and nitrile rubber (NBR), and was formed in order to produce novel materials with enhanced chemical and gas barrier properties. In both cases if the phase mixing is optimised the probability of controlled morphologies and synergistic behaviour is increased. The PS/SBS IPNs were prepared using sequential polymerisation. The primary SBS network was thermally crosslinked, then the polystyrene network was polymerised and crosslinked using gamma irradiation to avoid possible thermal degradation of the butadiene segment of the SBS. Tough transparent systems were produced with no apparent thermal degradation of the polybutadiene segments. The epichlorohydrin/nitrile rubber IPNs were formed by simultaneous thermal crosslinking reactions. The epichlorohydrin network was formed using lead based crosslinker, while the nitrile rubber was crosslinked by peroxide methods. The use of two different crosslinking systems was employed in order to achieve independent crosslinking thus resulting in an IPN with minimal grafting between the component networks. SANS, Transmission electron microscopy (TEM), and atomic force microscopy (AFM) were used to examine the size and shape of the phase domains and investigate any variation with crosslinking level and irradiation dose. SANS proved extremely useful for examining the size and shape of the phase domains in these IPNs. We have examined a range of both thermal and radiation crosslinked IPNs using SANS facilities at ANSTO and NIST. Selected samples were sectioned into 1mm strips and stacked to form a composite sample to examine in-plane structure.2 The examination of some of the samples in two perpendicular directions greatly assisted structure determination. New results from real-time thermal polymerisation experiments will also be discussed

2003-01-01

90

Myocardial infarction and cardiovascular risk factors in Mexico City and San Antonio, Texas.  

Science.gov (United States)

Because the epidemiology of cardiovascular disease in Mexico is largely unknown, we examined the prevalence of cardiovascular risk factors and myocardial infarction (MI) in adults from low-income colonias in Mexico City. Data were collected as part of the Mexico City Diabetes Study, a population-based survey of diabetes and cardiovascular disease conducted between 1987 and 1992. Results were compared with those obtained from a comparable survey conducted previously among low-income Mexican Americans in San Antonio, Tex. A total of 2271 individuals between the ages of 35 and 64 years from Mexico City and 1143 adults of the same age range from San Antonio were studied. Despite being leaner and having lower levels of total cholesterol, Mexicans in Mexico City had markedly higher levels of triglycerides (P < .001) and lower levels of HDL cholesterol (P < .001) than Mexican Americans in San Antonio. MI was assessed by Minnesota-coded electrocardiograms and by a self-reported history of physician-diagnosed heart attack. In men, the prevalence of self-reported heart attack was significantly higher in San Antonio than in Mexico City (odds ratio, 5.85; P < .001), and in women, the prevalence of electrocardiogram-documented MI was significantly higher in San Antonio than Mexico City (odds ratio, 2.51; P < .001). The apparent excess of MI in San Antonio relative to Mexico City could be due to higher case-fatality in Mexico City or to a higher incidence in San Antonio. PMID:7773724

Mitchell, B D; González Villalpando, C; Arredondo Pérez, B; García, M S; Valdez, R; Stern, M P

1995-06-01

91

Myocardial infarction and cardiovascular risk factors in Mexico City and San Antonio, Texas.  

UK PubMed Central (United Kingdom)

Because the epidemiology of cardiovascular disease in Mexico is largely unknown, we examined the prevalence of cardiovascular risk factors and myocardial infarction (MI) in adults from low-income colonias in Mexico City. Data were collected as part of the Mexico City Diabetes Study, a population-based survey of diabetes and cardiovascular disease conducted between 1987 and 1992. Results were compared with those obtained from a comparable survey conducted previously among low-income Mexican Americans in San Antonio, Tex. A total of 2271 individuals between the ages of 35 and 64 years from Mexico City and 1143 adults of the same age range from San Antonio were studied. Despite being leaner and having lower levels of total cholesterol, Mexicans in Mexico City had markedly higher levels of triglycerides (P < .001) and lower levels of HDL cholesterol (P < .001) than Mexican Americans in San Antonio. MI was assessed by Minnesota-coded electrocardiograms and by a self-reported history of physician-diagnosed heart attack. In men, the prevalence of self-reported heart attack was significantly higher in San Antonio than in Mexico City (odds ratio, 5.85; P < .001), and in women, the prevalence of electrocardiogram-documented MI was significantly higher in San Antonio than Mexico City (odds ratio, 2.51; P < .001). The apparent excess of MI in San Antonio relative to Mexico City could be due to higher case-fatality in Mexico City or to a higher incidence in San Antonio.

Mitchell BD; González Villalpando C; Arredondo Pérez B; García MS; Valdez R; Stern MP

1995-06-01

92

Neutron beam applications - Polymer study and sample environment development for HANARO SANS instrument  

Energy Technology Data Exchange (ETDEWEB)

A new SANS instrument will be installed in HANARO reactor near future and in parallel it is necessary to develop the sample environment facilities. One of the basic items is the equipment to control the sample temperature of cell block with auto-sample changer. It is required to develop a control software for this purpose. In addition, softwares of the aquisition and analysis for SANS instrument must be developed and supplied in order to function properly. PS/PI block copolymer research in NIST will provide the general understanding of SANS instrument and instrument-related valuable informations such as standard sample for SANS and know-hows of the instrument building. The following are the results of this research. a. Construction of sample cell block. b. Software to control the temperature and auto-sample changer. c. Acquisition of the SANS data analysis routine and its modification for HANARO SANS. d. PS/PI block copolymer research in NIST. e. Calibration data of NIST and HANARO SANS for comparison. 39 figs., 2 tabs. (Author)

Kim, Hong Doo [Kyunghee University, Seoul (Korea); Char, Kook Heon [Seoul National University, Seoul (Korea)

2000-04-01

93

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

Science.gov (United States)

...School Ship San Sebastian El Cano Escort; Bahia de San Juan; San Juan, PR AGENCY: Coast Guard, DHS. ACTION: Temporary...temporary moving safety zone on the waters of Bahia de San Juan during the transit of the Spanish Navy School Ship...

2013-03-29

94

78 FR 28800 - Foreign-Trade Zone 61-San Juan, Puerto Rico; Application for Subzone; Parapiezas Corporation; San...  

Science.gov (United States)

...S-65-2013] Foreign-Trade Zone 61--San Juan, Puerto Rico; Application for Subzone; Parapiezas Corporation; San Juan, Puerto Rico An application has been...Parapiezas Corporation located in San Juan, Puerto Rico. The application was...

2013-05-16

95

Drilling stabilizes in the San Juan  

Energy Technology Data Exchange (ETDEWEB)

Oil production is increasing vastly in importance in the San Juan Basin and drilling for Gallup oil objectives is credited with the stabilization of rig activity this year. By mid-1983, oil well completions accounted for 47% of total well completions. With reduced demand for San Juan basin gas operators are aggressively drilling Gallup wells.

Mickey, V.

1983-11-01

96

Magnetotelluric Data, Southern San Luis Valley, Colorado.  

Science.gov (United States)

The population of the San Luis Valley region is growing rapidly. The shallow unconfined and the deeper confined Santa Fe Group aquifer in the San Luis Basin is the main sources of municipal water for the region. Water shortfalls could have serious consequ...

J. M. Williams R. D. Rodriquez

2007-01-01

97

Solar America City - San Diego, California.  

Science.gov (United States)

San Diego is a hotbed of solar activity. In June 2007, San Diego was selected as a Solar City by the U.S. Department of Energy because of its commitment to adopting solar technology at the local level. Municipal government, businesses, and nonprofit organ...

2008-01-01

98

Edificio San Cristobal -Alicante- España  

Directory of Open Access Journals (Sweden)

Full Text Available The San Cristóbal Building has been constructed in the very center of the city of Alicante and is considered as one of the most singular buildings of Europe. Among its outstanding characteristic, we can point out. In addition to the facade -unique- in fire-lacquered aluminium, the fact of its extremely deep foundations lined by hundreds of tons of concrete due to the geological conditions of the ground. It has four parking floors, ground floor, four floors four dwellings. The construction of this building, which lasted two years, signifies a step forward and a decisive contribution to world architecture.Se ha construido en Alicante, en pleno centro de la ciudad, el Edificio San Cristóbal considerado como uno de los más singulares de Europa. Entre sus características más destacadas podemos señalar, además de la fachada - única- de aluminio lacado al fuego, el hecho de tener una cimentación muy profunda revestida por cientos de toneladas de hormigón debido a las condiciones geológicas del suelo. Posee cuatro plantas de aparcamiento, planta baja, cuatro plantas de oficinas y cuatro viviendas. La construcción de este edificio, cuya duración ha sido de dos años, ha supuesto un avance y un decisivo aporte a la arquitectura mundial.

Navarro Guzmán, Alfonso; Sanz Magallón, José Luis; Ligues Creus, Juan

1980-01-01

99

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

Directory of Open Access Journals (Sweden)

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

Hernán Horacio Schiaffini

2011-01-01

100

Séparation Adaptative De Sources En Aveugle. Implantation Complexe Sans Contraintes.  

UK PubMed Central (United Kingdom)

A new adaptive blind algorithm for the separation of ind'ependentcomplex (or real) sources is presented. The algorithmstems from a classical cumulant-based separation criterion, butis not implemented by chaining a whitening stage and a unitarystage. We rather show that their integration into a single blockleads to a parameter free implementation which is both simpleand efficient and works indifferently for both real and complexsignals.1 IntroductionLe probl`eme de s'eparation de sources consid`ere m combinaisonslin'eaires, lin'eairement ind'ependantes, de n signauxstatistiquement ind'ependants (les signaux `sources'),et consiste `a estimer les signaux sources `a partir des seulesobservations, c'est-`a-dire en l'absence de toute informationsur les coefficients du m'elange.Des techniques de traitement par blocs utilisant des cumulantsd'ordre 4 sont d'ecrites dans [?, ?, ?] (voir [?]pour une analyse des performances). Dans cet article, nousconsid'erons une approche adap...

Beate Christina; Hvam Laheld

 
 
 
 
101

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

Directory of Open Access Journals (Sweden)

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

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

2012-01-01

102

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

Scientific Electronic Library Online (English)

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

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

2012-08-01

103

San Francisco Aerial Photographs 1938  

Science.gov (United States)

Have you ever wanted to fly over San Francisco in the year 1938? Well, now you can in a manner of speaking. Recently, the David Rumsey Historical Map Collection website digitized 164 large format, black and white, vertical aerial photographs taken by Harrison Ryker, a pioneer in aerial photography. The photos are quite remarkable, and visitors can zoom in to see such details as the paint striping on a basketball court. Visitors can peer out over the Ferry Terminal Building, the long-gone Mission Bay Roundhouse, and Hunters Point. The site also contains a detailed biographical sketch of Harrison Ryker, complete with a few of the advertisements for his own products, like the M-11 Stereoscope. Finally, visitors can also save specific images for future references.

104

Geochemical correlation and 40Ar/39Ar dating of the Kern River ash bed and related tephra layers: Implications for the stratigraphy of petroleum-bearing formations in the San Joaquin Valley, California  

Science.gov (United States)

The Kern River ash (KRA) bed is a prominent tephra layer separating the K and G sands in the upper part of the Kern River Formation, a major petroleum-bearing formation in the southern San Joaquin Valley (SSJV) of California. The minimum age of the Kern River Formation was based on the tentative major-element correlation with the Bishop Tuff, a 0.759??0.002 Ma volcanic tephra layer erupted from the Long Valley Caldera. We report a 6.12??0.05 Ma 40Ar/39Ar date for the KRA, updated major-element correlations, trace-element correlations of the KRA and geochemically similar tephra, and a 6.0??0.2 Ma 40Ar/39Ar age for a tephra layer from the Volcano Hills/Silver Peak eruptive center in Nevada. Both major and trace-element correlations show that despite the similarity to the Bishop Tuff, the KRA correlates most closely with tephra from the Volcano Hills/Silver Peak eruptive center. This geochemical correlation is supported by the radiometric dates which are consistent with a correlation of the KRA to the Volcano Hills/Silver Peak center but not to the Bishop Tuff. The 6.12??0.05 Ma age for the KRA and the 6.0??0.2 Ma age for the tephra layer from the Volcano Hills/Silver Peak eruptive center suggest that the upper age of the Kern River Formation is over 5 Ma older than previously thought. Re-interpreted stratigraphy of the SSJV based on the new, significantly older age for the Kern River Formation opens up new opportunities for petroleum exploration in the SSJV and places better constraints on the tectonostratigraphic development of the SSJV. ?? 2007 Elsevier Ltd and INQUA.

Baron, D.; Negrini, R. M.; Golob, E. M.; Miller, D.; Sarna-Wojcicki, A.; Fleck, R. J.; Hacker, B.; Erendi, A.

2008-01-01

105

Moving Towards SAN Storage: An Enterprise Perspective  

Directory of Open Access Journals (Sweden)

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

rabi prasad padhy

2012-01-01

106

Small angle neutron scattering (SANS and V-SANS) study of asphaltene aggregates in crude oil.  

Science.gov (United States)

We report small angle neutron scattering (SANS) experiments on two crude oils. Analysis of the high-Q SANS region has probed the asphaltene aggregates in the nanometer length scale. We find that the radius of gyration decreases with increasing temperature. We show that SANS measurements on crude oils give similar aggregate sizes to those found from SANS measurements of asphaltenes redispersed in deuterated toluene. The combined use of SANS and V-SANS on crude oil samples has allowed the determination of the radius of gyration of large scale asphaltene aggregates of approximately 0.45 microm. This has been achieved by the fitting of Beaucage functions over two size regimes. Analysis of the fitted Beaucage functions at very low-Q has shown that the large scale aggregates are not simply made by aggregation of all the smaller nanoaggregates. Instead, they are two different aggregates coexisting. PMID:19063643

Headen, Thomas F; Boek, Edo S; Stellbrink, Jörg; Scheven, Ulrich M

2009-01-01

107

Small angle neutron scattering (SANS and V-SANS) study of asphaltene aggregates in crude oil.  

UK PubMed Central (United Kingdom)

We report small angle neutron scattering (SANS) experiments on two crude oils. Analysis of the high-Q SANS region has probed the asphaltene aggregates in the nanometer length scale. We find that the radius of gyration decreases with increasing temperature. We show that SANS measurements on crude oils give similar aggregate sizes to those found from SANS measurements of asphaltenes redispersed in deuterated toluene. The combined use of SANS and V-SANS on crude oil samples has allowed the determination of the radius of gyration of large scale asphaltene aggregates of approximately 0.45 microm. This has been achieved by the fitting of Beaucage functions over two size regimes. Analysis of the fitted Beaucage functions at very low-Q has shown that the large scale aggregates are not simply made by aggregation of all the smaller nanoaggregates. Instead, they are two different aggregates coexisting.

Headen TF; Boek ES; Stellbrink J; Scheven UM

2009-01-01

108

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

Science.gov (United States)

...2009-07-01 false Security Zone; Coast Guard Base San Juan, San Juan Harbor, Puerto Rico 165.776 Section 165.776... § 165.776 Security Zone; Coast Guard Base San Juan, San Juan Harbor, Puerto Rico (a) Location . The following area...

2009-07-01

109

Geodetic measurement of crustal deformation on the San Andreas, Hayward, and Calaveras faults near San Francisco, California  

Energy Technology Data Exchange (ETDEWEB)

Analysis of a geodetic network of 115 lines crossing the San Andreas, Hayward, and Calaveras faults in the vicinity of San Francisco Bay and measured repeatedly between 1970 and 1980 has revealed details about the accommodation of relative plate motion in this area. The most striking result is that the deformation is not uniformly distributed across the area. In the east bay, along the Hayward and Calaveras faults, all motion appears to take place as slip directly on the fault, with no accumulation of strain in the adjacent crust. On both the Calaveras and the Hayward faults the rate obtained for the 1970 to 1980 period agrees with geologic rates spanning a few million years and with creep rates spanning a few decades. The Hayward fault slip rate is 7 +- 1 mm/yr. The Calaveras fault slip rate is 7 +- 1 mm/yr, with perhaps half of this slip distributed across a zone a few kilometers wide, probably as inelatic deformation of weak near-surface material. The absence of strain accumulation in the east bay is surprising since the Hayward and Calaveras faults have been the site of large earthquakes in the past. A block located east of the Calaveras fault and south of the Las Positas fault has been rotating clockwise at the rate of 0.3 +- 0.1 ..mu..rad/yr with very little internal deformation. Along the San Francisco peninsula no detectable slip occurs (less than 1.5 mm/yr) at the surface, but appreciable strain is accumulating. Near fault shear strain rates are 0.6 +- 0.1 ..mu..strain/yr (engineering) with direction N47/sup 0/W +- 9. The slip rate near the San Andreas fault is 12.2 +- 3.9 mm/yr distributed across a broad zone. The relative motion across the whole region during the period 1970--1980 is 32.1 +- 7.4 mm/yr.

Prescott, W.H.; Lisowski, M.; Savage, J.C.

1981-11-10

110

Performance of BATAN-SANS instrument  

Energy Technology Data Exchange (ETDEWEB)

SANS data from some standard samples have been obtained using BATAN-SANS instrument in Serpong. The experiments were performed for various experimental set-ups that involve different detector positions and collimator lengths. This paper describes the BATAN-SANS instrument briefly as well as the data taken from those experiments and followed with discussion of the results concerning the performance and calibration of the instrument. The standard samples utilized in these experiments include porous silica, polystyrene-poly isoprene, silver behenate, poly ball and polystyrene-poly (ethylene-alt-propylene). Even though the results show that BATAN-SANS instrument is in good shape, but rooms for improvements are still widely open especially for the velocity selector and its control system. (author)

Ikram, Abarrul; Insani, Andon [National Nuclear Energy Agency, P and D Centre for Materials Science and Technology, Serpong (Indonesia)

2003-03-01

111

San Ardo field steam flood simulations  

Energy Technology Data Exchange (ETDEWEB)

Texaco's steam flood operations in San Ardo, California, is one of the largest and most recovery efficient in the world. In order to achieve this status it was necessary to step beyond the bounds of proven steam flood technology. This paper describes the steam flood development history and presents some of the San Ardo characteristics that make this a unique steam flood operation. A steam flood computer simulation study shows that the computer model used is capable of simulating the steam flood operation sequence, as practiced in the San Ardo Field. This is demonstrated by an excellent agreement between the model simulation results and those of actual injection-production data from the San Ardo steam flood. A potential steam flood recovery of 60 to 70% is indicated.

Shum, Y.M.

1982-01-01

112

Magnetotelluric Data, San Luis Valley, Colorado.  

Science.gov (United States)

The San Luis Valley region population is growing. Water shortfalls could have serious consequences. Future growth and land management in the region depend on accurate assessment and protection of the regions ground-water resources. An important issue in m...

B. D. Rodriguez J. M. Williams

2007-01-01

113

San Francisco 1906 Earthquake Stereo Postcards  

Science.gov (United States)

A series of stereo postcards of the earthquake's destruction, showing the destruction of San Francisco using 1906 3D technology. These postcards, captured in the months following the quake, can be viewed by crossing the eyes, or using a stereoscope.

Karis, Robert; Association, Ingleside T.

114

Performance of BATAN-SANS instrument  

International Nuclear Information System (INIS)

SANS data from some standard samples have been obtained using BATAN-SANS instrument in Serpong. The experiments were performed for various experimental set-ups that involve different detector positions and collimator lengths. This paper describes the BATAN-SANS instrument briefly as well as the data taken from those experiments and followed with discussion of the results concerning the performance and calibration of the instrument. The standard samples utilized in these experiments include porous silica, polystyrene-poly isoprene, silver behenate, poly ball and polystyrene-poly (ethylene-alt-propylene). Even though the results show that BATAN-SANS instrument is in good shape, but rooms for improvements are still widely open especially for the velocity selector and its control system. (author)

2003-01-01

115

Contrast variation by nuclear polarisation in SANS  

International Nuclear Information System (INIS)

In order to study properties of block-copolymers, SANS with dynamic nuclear polarisation is taken from polymers in frozen solution. Bulk scattering from toluene and from ortho-terphenyl has been compared. The experimental results show that OTP is a polymer solvent which gives a modest scattering contribution itself in the glassy state. The strong influence of proton polarisation on SANS from a block-copolymer (polystyrene D-H in OTP) is shown. (orig.).

1992-01-01

116

Contrast variation by nuclear polarisation in SANS  

Energy Technology Data Exchange (ETDEWEB)

In order to study properties of block-copolymers, SANS with dynamic nuclear polarisation is taken from polymers in frozen solution. Bulk scattering from toluene and from ortho-terphenyl has been compared. The experimental results show that OTP is a polymer solvent which gives a modest scattering contribution itself in the glassy state. The strong influence of proton polarisation on SANS from a block-copolymer (polystyrene D-H in OTP) is shown. (orig.).

Fermon, C.; Glaettli, H.; Grinten, M. van der; Eisenkremer, M. (Service de Physique de l' Etat Condense, Centre d' Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France)); Pinot, M. (Lab. Leon Brillouin, Centre d' Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France))

1992-06-01

117

Arquitectura formativa en San Pedro de Atacama  

Scientific Electronic Library Online (English)

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

Adán A, Leonor; Urbina A, Simón

2007-01-01

118

San Onofre unit 1 water hammer event  

International Nuclear Information System (INIS)

[en] San Onofre Unit 1 experienced a severe water hammer event in the main feedwater (MFW) system on November 21, 1985. Southern California Edison (SCE) performed an extensive investigation and evaluation to determine the cause and effect of the event. The most significant finding was that five MFW system check valves had degraded to an inoperable condition prior to the event. The inoperable check valves caused the formation of a water hammer in the B MFW line which, in turn, caused a reactor trip transient to escalate into a more serious event. The water hammer created a MFW system leak which affected the capability of the auxiliary feedwater system to perform its safety-related shutdown function. Moderate damage was sustained in the MFW and Condensate system including the rupture of the evaporator heater and flash chamber shell (a 21-foot long split in the weld seam). In spite of the MFW system leak and damage, the inherent redundance and defense in depth built into the plant allowed the operators to shut down and stabilize the plant in a timely and orderly manner

1987-01-01

119

SSC San Diego San Diego, CA 92152--5001  

UK PubMed Central (United Kingdom)

this report was performed for the Expeditionary Warfare Division of theOffice of Naval Research (ONR 353) and the Command and Control Project Officer (ONR 31) by theSSC San Diego Signal Processing & Communication Technology Branch (D855).ACKNOWLEDGMENTSWe have the pleasure to acknowledge the assistance of Greg Adams. Among other things,he provided access without charge to the West Tower and the Anechoic Chamber. The measurementof the antenna parameters would have been difficult without his help. Dr. John Meloling providedaccess to the Hewlett Packard network analyzer for the measurement of impedance. Jim Birkettprovided the signal generator, a shed to conduct the radiation hazard experiments and much adviceand expertise. Clark Hendrickson provided much equipment and encouragement. KianoushRouzbehani used the EIGER code to predict the heating of jell and other fluids by the Mark I vestantenna. The New Professional, Ming Kwong, helped during the assessment of radiation hazards.CDR C. Peter Haglind (Swedish Navy), CWO3 Frank Canez, and LCDR Charles Wrightson providedvery significant assistance in their roles as head of the COMWIN Project.We would also like to thank Professor Jovan Lebaric and Professor Richard Adler of the NavalPostgraduate School (NPS). The concept of the COMWIN System was originated and developed byNPS and their students.iiiEXECUTIVE SUMMARYThe project to develop a broadband, man-carried antenna began in May 1999. There were twoobjectives. The first objective was to develop an antenna system whose visual signature did notdistinguish the radio operator from any other soldier. The solution to this first objective was tointegrate the antenna into the uniform of the soldier. Hence, the project is called COMbat WearIntegration (COMWI...

R. C. Adams; R. S. Abramo; J. L. Parra; J. F. Moore; Ernest L. Valdes; Usn R. C. Kolb

120

76 FR 6491 - San Diego County Water Authority Subregional Natural Community Conservation Program/Habitat...  

Science.gov (United States)

...mesa mint (Pogogyne nudiuscula; endangered), Otay tarplant (Deinandra conjugens; threatened), San Diego ambrosia (Ambrosia pumila; endangered), San Diego button-celery (Eryngium aristulatum var. parishii; endangered), San...

2011-02-04

 
 
 
 
121

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

Scientific Electronic Library Online (English)

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

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

2012-06-01

122

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

Scientific Electronic Library Online (English)

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

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

2013-12-01

123

Nature and Culture in the Rituals of San Antonio  

Directory of Open Access Journals (Sweden)

Full Text Available In this paper I analyze the cult of San Antonio Abad, San Antón, as an example of the ritual fusion of nature and culture in the different communities commemorating this Saint. The festive practices of this «old Saint» are associated to preChristian rites related to fire and the protection of animals. The cult to this Saint was very pread out in Europe, and was even exported to the American colonies. It is a clear example of how popular practices appropriate Church initiatives within their own logic, bordering heterodoxy at times, while expressing mechanisms of resistance to change. Yet it is clear that this cult has survived because it has adapted. When industrialization came to the countryside, the animal blessing gave way to machine blessing. When stockbreeding is on the wane, the cult adjusts to new ecological sensibilities and the blessings go to pets. St. Antonio unifies nature and culture, rural and urban, remote cults with ecology.En este artículo reflexiono en torno al culto de San Antonio Abad o San Antón como una muestra de la fusión naturaleza y cultura a través de los ritos que llevan a cabo las distintas poblaciones que festejan a este santo. Las prácticas festivas de este “santo viejo” están asociadas a prácticas precristianas relacionadas con el culto al fuego y la protección de los animales. El culto de este santo popular estuvo muy extendido por Europa y fue exportado a las colonias americanas. Sirve como expresión muy clara de cómo las apropiaciones populares se han producido una y otra vez estimuladas por iniciativas eclesiásticas y se han desarrollado según los modos propios las prácticas propuestas, rozando en ocasiones la heterodoxia y expresando mecanismos de resistencia al cambio. Aunque por otra parte este culto se ha mantenido gracias a que se ha adaptado; el campo se industrializó y dejó de celebrarse la bendición de animales para pasar a bendecir las máquinas. Cuando prácticamente se ha abandonado la explotación ganadera, el culto se adapta a la nueva sensibilidad ecológica y se bendicen las mascotas. San Antonio concilia naturaleza y cultura, lo rural con lo urbano, los cultos remotos con la nueva ecología.

Velasco Maíllo, Honorio M.

2009-01-01

124

Relativity  

CERN Multimedia

Relativity: The Special and General Theory is an introduction to Einstein's space-bending, time-stretching theory of Relativity, first published in December 1916. Special and General relativity explain the structure of space time and provide a theory of gravitation, respectively. Einstein's theories shocked the world with their counterintuitive results, including the dissolution of absolute time. In this book, he brings a simplified form of his profound understanding of the subject to the layperson. In the words of Einstein: "The present book is intended, as far as possible, to give an ex

Einstein, Albert

2010-01-01

125

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

International Nuclear Information System (INIS)

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

2001-01-01

126

Representaciones, actitudes y prácticas respecto a la Leishmaniasis Cutánea en la población del Cantón de Acosta, provincia de San José, Costa Rica: estudio antropológico exploratório/ Representation, attitudes, and practices related to Cutaneous Leishmaniasis in people from Acosta Country, San Jose province, Costa Rica: an exploratory anthropological astudy  

Scientific Electronic Library Online (English)

Full Text Available Abstract in spanish Estudio antropológico exploratorio sobre las representaciones, actitudes y prácticas relacionadas con la Leishmaniasis Cutánea (LC) en la población rural del cantón de Acosta, Costa Rica, dirigido a estimar la posibilidad de aplicación de medidas de control propuestas sobre una base epidemiológica. Entrevistas abiertas con una pequeña muestra de personas, provenientes tanto de casas-caso como de casas-control proveyeron la base para un Análisis Proposicional del (more) Discurso (APD). Los resultados son que la gente de Acosta considera la LC como una entidad nosológica diferenciada, pero se interesan sobre todo en sus manifestaciones clínicas en los niños (que son los más afectados), así como en su propia capacidad de acción mediante remedios populares. La idea de medidas de control sobre los reservorios, los vectores o el contexto espacio-temporal del contacto no asoma espontáneamente en el pensamiento de la gente. Sin embargo, la LC se percibe como una disrupción en el espacio doméstico y peridoméstico, considerado seguro; medidas de control que intervengan en ese ámbito podrían pues tener buenas posibilidades de éxito. Abstract in english An exploratory anthropological study on representations, attitudes, and practices related to Cutaneous Leishmaniasis (CL) among the rural population of Acosta Vountry, Costa Rica, aimed to estimate the applicability of epidemiologically-based control measures. Open interviews with a small sample of individuals from both case and control households provided the basic for a Propositional Discourse Analysis (PDA). Results are that Acosta people consider CL a distinct nosolog (more) ic entity, but they are mainly interested in its clinical manifestations in children (who are mainly affected), as well as in their own capacity to act on the disease using folk remedies. The idea of control measures on reservoirs, on vectors, or on the spatial and temporal context of contact does not arise spontaneously in people's thinking. Nevertheless, CL is perceived as a disruption in the safe domiciliary and peridomiciliary space, so that control measures intervening there could have a chance for success.

Dobles-Ulloa, Alvaro; Perriard, Catherine

1994-06-01

127

Seismic techniques in uranium exploration - San Juan Basin, New Mexico  

International Nuclear Information System (INIS)

The 5.5 mile-long segment of a seismic line illustrated in the report is part of a seismic survey near Crownpoint, New Mexico. It may be used as a reference line for future uranium-related seismic studies, as it crosses two uranium orebodies and is in an area that has been extensively drilled and studied. It also demonstrates the seismic character of the uranium-bearing Upper Jurassic Morrison Formation in the southern San Juan Basin. Seismic techniques may be used to locate the drilling targets and thus provide a more efficient means for uranium exploration. Geology, seismic interpretation and acquisition are discussed. 14 references, 7 figures

1985-01-01

128

New IP SAN Era in Cluster Mirroring  

Directory of Open Access Journals (Sweden)

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

Mr. Rajendra Purohit; Mr. Amit Mishra

2012-01-01

129

San Francisco's 'pay or play' employer mandate expanded private coverage by local firms and a public care program.  

UK PubMed Central (United Kingdom)

In 2008 San Francisco implemented a pay-or-play employer mandate that required firms operating in the city to provide health insurance coverage for employees or contribute to the city's "public option" health access program, Healthy San Francisco. Using data from our Bay Area Employer Health Benefits Survey, we found that in the first two years after implementation, more employers offered insurance and provided employee health benefit coverage relative to employers outside San Francisco not subject to the mandate. Sixty-seven percent reported in 2009 that they had expanded benefits since 2007. Although 22 percent of firms responding to the survey reported contributing to Healthy San Francisco for some employees, we observed no crowd-out of private insurance. Premium changes between 2007 and 2009 were similar in San Francisco and surrounding areas, but more of the burden of premium contributions in San Francisco shifted from workers to employers. Overall, 64 percent of firms responding to the survey supported the employer mandate. San Francisco's experience indicates that such a mandate is feasible, increases access, and is acceptable to many employers, which bodes well for the national employer mandate that will take effect under the Affordable Care Act in 2014.

Colla CH; Dow WH; Dube A

2013-01-01

130

Relativity  

CERN Document Server

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

Einstein, Albert

2013-01-01

131

Relativity  

CERN Multimedia

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

Brewster, Hilary D

2009-01-01

132

75 FR 53332 - San Carlos Irrigation Project, Arizona  

Science.gov (United States)

...INTERIOR Bureau of Reclamation San Carlos Irrigation Project, Arizona AGENCY: Bureau of...on the rehabilitation of San Carlos Irrigation Project (SCIP) water delivery facilities...County, Arizona. SCIP canals convey irrigation water from the Gila River and...

2010-08-31

133

Evaluation of current SANS cryostat performance  

International Nuclear Information System (INIS)

Cryostat is one of the components for a Small Angle Neutron Scattering (Sans) system. It is the main part of which neutron beam from is cooled by passing it into a solid beryllium (Be) cooled at a liquid nitrogen temperature. The cryostat is converting most fast neutron to thermal neutron ranging from 0.001 to 0.2 MeV energies. The quality of thermal neutron produced will determine the quality of data or samples analyzed using SANS. In this paper, the current cryostat is evaluated based on temperature and pressure that affect the cryostat performance and propose design which will enhance or improved the cooling performance of cryostat. (Author)

2004-01-01

134

Site testing at San Pedro Mártir  

Directory of Open Access Journals (Sweden)

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

J. Echeverru00EDa

2003-01-01

135

Nanostructural characterisation of catalysts by SANS  

International Nuclear Information System (INIS)

A series of restructured clays used as catalysts in small- and large-scale chemical reactions, have been studied by small-angle neutron scattering (SANS). Analysis of the spectra provides detailed information both on the nanopore structure and the surface texture of these materials. Additionally, pillared inter-layered clays (PILCs) have a great potential for industrial utilisation in catalysis, sorption and separations. PILCs have been studied with contrast-matching SANS in order to independently resolve the structure of each phase since by matching the neutron scattering length density of the clay or the pillars, the scattering curve results only from the non-contrast matched phase

2004-07-15

136

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

Scientific Electronic Library Online (English)

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

Habit, Evelyn; Parra, Oscar

2012-01-01

137

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

Directory of Open Access Journals (Sweden)

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

Evelyn Habit; Oscar Parra

2012-01-01

138

27 CFR 9.194 - San Antonio Valley.  

Science.gov (United States)

...2010-04-01 2010-04-01 false San Antonio Valley. 9.194 Section 9...Viticultural Areas § 9.194 San Antonio Valley. (a) Name . The name...described in this section is âSan Antonio Valleyâ. For purposes of...

2010-04-01

139

San Miguel sea lion virus fed to mink and pigs.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mink became infected with San Miguel sea lion virus when fed ground meat from seal carcasses showing vesicular-like lesions in the skin. The mink also contracted the infection when they were fed San Miguel sea lion virus infected pig meat or cell culture propagated virus. San Miguel sea lion virus i...

Wilder, F W; Dardiri, A H

140

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

Directory of Open Access Journals (Sweden)

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

Ernika G. Quimby; Jennifer P. Edidin; Zoe Ganim; Erika Gustafson; Scott J. Hunter; Niranjan S. Karnik

2012-01-01

 
 
 
 
141

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

International Nuclear Information System (INIS)

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

2007-01-01

142

First epoch measurements by Mark III VLBI of the San Andreas Fault experiment baseline  

Energy Technology Data Exchange (ETDEWEB)

The 883-km-long San Andreas Fault Experiment (SAFE) baseline between Quincy in northern California and Monument Peak in southern California spans the San Andreas Fault in a way designed to measure motion between the North American and the Pacific Plates. This baseline and a closely related baseline have been measured with the satellite laser ranging techniques (SLR) for over 10 years. The baseline was measured with the very-long-baseline interferometry (VLBI) technique to confirm or reject the results already obtained from SLR.

Ryan, J.W.

1985-08-01

143

Lichens as air pollution indicators in the metropolitan area of San Jose, Costa Rica  

Energy Technology Data Exchange (ETDEWEB)

Lichens were used as air pollution indicators in the metropolitan area of San Jose, Costa Rica. Those parts of the city where pollution is greatest were also the ones where lichens suffered the most, and in some extreme cases the thallus died after 8 months of exposure. Besides this transplant experiment, the coverage of Parmelia lichens on the bark of several tree species was determined in some areas of the city. The results of these observations suggest that the city of San Jose has three different kinds of air environment in relation to lichen survival: normal, transitional and desertic.

Mendez, O.I.; Fournier, L.A.

1980-07-01

144

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

Science.gov (United States)

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

Shrimplin, V.

2011-06-01

145

Utilization of oil-decomposing microorganisms. Part 1. Relative concentration of docosahexaenoic acid by candida famata US 238; Yushi bunkai biseibutsu no riyo. 1. Candida famata US-238 kabu ni yoru dokosahekisaen san no sotaiteki noshuku  

Energy Technology Data Exchange (ETDEWEB)

DHA (docosahexaenoic acid) is attracting much attention recently. If DHA of fish oil in natural oil resources is needed to be used more effectively for practical applications, high DHA content ratio is required. For this purpose, fat acid characteristics (unique) arise during oil decomposition is used in microorganism. Microorganisms which have low decomposing ability for DHA are screened among oil decomposing microorganisms. Adjustment of DHA concentrated oil is tested using above mentioned microorganisms. The results of the screening tests are given as follows. A strain called candida famata US-238 is identified which increases sardine fish oil`s DHA concentration from 14.1% to 22.6%. The optimal cultivation conditions to increase relative concentration of DHA from fish oils using this strain are examined. Furthermore carrying culture examination employing 10L jar fermenter, an oil containing about 50% DHA is obtained. 9 refs., 6 tabs.

Minami, K.; Yamamoto, H.; Tsujiwaki, Y. [Ueda Oils Fats Manufacturing Co. Ltd., Kobe (Japan); Ichimoto, I. [Univ. of Osaka Prefecture, Osaka (Japan)

1996-08-20

146

CONDICIONES OCEANOGRÁFICAS ALREDEDOR DEL ARCHIPIÉLAGO JUAN FERNÁNDEZ E ISLAS SAN FÉLIX-SAN AMBROSIO  

Directory of Open Access Journals (Sweden)

Full Text Available Las condiciones oceanográficas alrededor del archipiélago Juan Fernández (33º S, 79° W) e islas San Félix y San Ambrosio (26º S, 81º W) fueron estudiadas en la primavera de 2000 durante elcrucero CIMAR 6 Islas Oceánicas. Se analizaron los perfiles de CTD alrededor de las islas y entrelos archipiélagos. Se observó una termoclina permanente y una picnoclina asociada entre los 100 y300 m de profundidad; no se detectaron variaciones de las características oceanográfícas relacionadas con la proximidad a las islas y su disminución de profundidad. Las masas de agua observadas correspondieron a Subantártica, Ecuatorial Subsuperficial e Intermedia Antártica, frente a Juan Fernández, y a nivel superficial se distinguió, el Agua Subtropical en las islas San Félix y San Ambrosio. Flujos geostróficos norte-sur de baja magnitud (<10 cm·s-1) y de direcciones opuestas seestimaron en el área de las islas referidos a 1.000 m.

JULIO MORAGA; WILDO ARGANDOÑA

2008-01-01

147

SANS analysis of aqueous ionic perfluoropolyether micelles  

CERN Multimedia

Preliminary SANS results of ionic chlorine terminated perfluoropolyether micelles in water are given. The experimental spectra have been analyzed by a two-shell ellipsoidal model for the micellar form factor and a screened Coulombic plus hard-sphere repulsion potential for the structure factor. (orig.)

Gambi, C M C; Chittofrati, A; Pieri, R; Baglioni, P; Teixeira, J

2002-01-01

148

City of San Carlos Fire Safety  

Science.gov (United States)

The City of San Carlos has World Wide Web server offers a fire safety tutorial which gives information and tips on how to prevent all types of house fires with special emphasis on preventing wildland fires. It also includes a color diagram on how to create a proper firebreak.

149

Polymer research using KUR-SANS  

International Nuclear Information System (INIS)

KUR-SANS has been used for researches of polymers with inhomogeneous structures. It was revealed that the fractal structure in microcrystalline cellulose is stable in the temperature range between 25 and 80degC. It was also revealed that the polyacrylamide gel has a fractal structure and that the fractal dimension increases with the cross link points. (author)

1998-01-01

150

Population density of San Joaquin kit fox  

Energy Technology Data Exchange (ETDEWEB)

Populations of the endangered San Joaquin kit fox, vulpes macrotis mutica, are known to occur on the Elk Hills Naval Petroleum Reserve No. 1. This study assess the impact of intensified petroleum exploration and production and associated human activities on kit fox population density. (ACR)

McCue, P.; O' Farrell, T.P.; Kato, T.; Evans, B.G.

1982-01-01

151

Simulations of the 1906 San Francisco Earthquake  

Energy Technology Data Exchange (ETDEWEB)

Simulations of the Great 1906 San Francisco earthquake are being performed as part of the event's centenary. LLNL is participating in a large effort to study this event and possible consequences if the event were to happen today. This document is meant to describe our efforts to others participating in the project.

Rodgers, A; Petersson, A; Tkalcic, H

2005-12-16

152

SANS-1 Experimental reports of 2000  

International Nuclear Information System (INIS)

[en] The instrument SANS-1 at the Geesthacht neutron facility GeNF was used for scattering experiments in 2000 at 196 of 200 days of reactor and cold source operation. The utilisation was shared between the in-house R and D program and user groups from different universities and research centers. These measurements were performed and analysed either by guest scientists or GKSS staff. The focus of the work in 2000 at the experiment SANS-1 was the structural investigation of hydrogen containing substances such as biological macromolecules (ribosomes, protein-RNA-complexes, protein solutions, glycolipids and membranes), molecules which are important in the fields of environmental research (refractoric organic substances) and technical chemistry (surfactants, micelles). (orig.)[de] Das Instrument SANS-1 der Geesthachter Neutronenstreueinrichtung GeNF stand 2000 an 196 von 200 Reaktoroperationstagen (Volllast mit KNQ) zur Verfuegung. In dieser Zeit konnten Untersuchungen fuer das GKSS-eigene F and E-Programm (7.T1.00.G.03) sowie eine Reihe von Universitaeten oder Forschungszentren durchgefuehrt werden. Die Messungen der Universitaeten wurden entweder durch Gastwissenschaftler oder durch GKSS-Personal aufgenommen und analysiert. Der Schwerpunkt der Arbeiten im Jahr 2000 an der Kleinwinkelstreueinrichtung SANS-1 lag in dem Bereich der Strukturanalyse von wasserstoffhaltigen Substanzen wie Biomolekuelen (Ribosomen, Protein-RNA-Komplexe, Proteinloesungen, Glykolipide und Membranen), umweltrelevanten Stoffen (Huminstoffen) und Kolloidsystemen (Tenside, Mizellen). (orig.)

2001-01-01

153

Rate Stabilization Effectiveness at PWC San Diego.  

Science.gov (United States)

Since 1 July 1975, Public Works Centers (PWC's) have billed their industrial fund customers on the basis of stabilized rates. The effectiveness of this rate stabilization is addressed using PWC San Diego as the model activity. The thesis (1) explores the ...

H. J. Schwirtz J. F. Mullane

1977-01-01

154

San Antonio, Texas: Solar in Action (Brochure)  

Energy Technology Data Exchange (ETDEWEB)

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

2011-10-01

155

San Francisco, California: Solar in Action (Brochure)  

Energy Technology Data Exchange (ETDEWEB)

This brochure provides an overview of the challenges and successes of San Francisco, CA, a 2007 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

2011-10-01

156

San Diego, California: Solar in Action (Brochure)  

Energy Technology Data Exchange (ETDEWEB)

This brochure provides an overview of the challenges and successes of San Diego, CA, a 2007 Solar America City awardee, on the path toward becoming a solar-powered community. Accomplishments, case studies, key lessons learned, and local resource information are given.

2011-10-01

157

San Jose, California: Solar in Action (Brochure)  

Energy Technology Data Exchange (ETDEWEB)

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

2011-10-01

158

Polymer research using KUR-SANS  

Energy Technology Data Exchange (ETDEWEB)

KUR-SANS has been used for researchs of polymers with inhomogeneous structures. It was revealed that the fractal structure in microcrystalline cellulose is stable in the temperature range between 25 and 80degC. It was also revealed that the polyacrylamide gel has a fractal structure and that the fractal dimension increases with the cross link points. (author)

Sugiyama, Masaaki [Kyushu Univ., Fukuoka (Japan). Dept. of Physics; Hara, Kazuhiro; Hiramatsu, Nobuyasu; Nakamura, Atsushi; Iijima, Hideki

1998-07-01

159

Opencast working at San Antonio mine (Cordoba)  

Energy Technology Data Exchange (ETDEWEB)

Within the wide range of work carried out by Cavosa in its capacity as a mining company (iron, coal, salt, tin, etc.), special attention should be focused on the quantity and importance of the work currently being undertaken on behalf of the operators of the San Antonio opencast mine (Empresa Promotora de Minas de Carbon).

Herranz Diaz, J.C.

1984-01-01

160

SANS analysis of aqueous ionic perfluoropolyether micelles  

Energy Technology Data Exchange (ETDEWEB)

Preliminary SANS results of ionic chlorine terminated perfluoropolyether micelles in water are given. The experimental spectra have been analyzed by a two-shell ellipsoidal model for the micellar form factor and a screened Coulombic plus hard-sphere repulsion potential for the structure factor. (orig.)

Gambi, C.M.C. [Dept. of Physics, University of Florence and I.N.F.M., v. Sansone 1, 50019 Sesto Fiorentino, Firenze (Italy); Giordano, R. [Dept. of Physics, University of Messina and I.N.F.M., Salita Sperone 31, 98010 S. Agata, Messina (Italy); Chittofrati, A.; Pieri, R. [Ausimont S.P.A., R and D Center, Colloid Laboratory, vl. Lombardia 20, 20021 Bollate, Milano (Italy); Baglioni, P. [Dept. of Chemistry, University of Florence and C.S.G.I., V. G. Capponi 9, 50121 Firenze (Italy); Teixeira, J. [Laboratoire Leon Brillouin, CEA-CNRS Saclay, 91191 Gif sur Yvette Cedex (France)

2002-07-01

 
 
 
 
161

The Writing Process Goes to San Quentin.  

Science.gov (United States)

A writing instructor describes her experience teaching 15 San Quentin Prison inmates how to write fiction, revise their work, and submit it for publication. Inmates were polite, demanded advice on mechanics, and avoided writing about reasons for life sentences. Insights later emerged in stories. (MLH)

Juska, Jane

1999-01-01

162

San Miguel High School: Focus and Preparation  

Science.gov (United States)

The corporate internship program is a cornerstone of the education that students receive at San Miguel High School in Tucson, Arizona. Four students share one job, so each student works for a corporate partner outside of the school every fourth day. The money they earn is used to help defray the cost of their education, and the experience is…

Principal Leadership, 2010

2010-01-01

163

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

Directory of Open Access Journals (Sweden)

Full Text Available The following paper analyses the behaviour of three of the most important monastic communities in the reing of Asturias-Leon for the ninth and then centuries. During this period we witness the implementation of a new ordo, or liturgical ritual that replaces the Hispanic one, strongly established in the Territorium. The liturgical adaptation produces tension and conflicts among the members of different monastic communities, and even between the Episcopate and the monarchy - being King Alfonso VI. In some of the monasteries, the arrival of the new ordo causes the adaptation of the liturgical space, with subsequent changes in liturgical furniture.El presente estudio pretende analizar el comportamiento de tres de las más importantes comunidades monásticas astur-leonesas de los siglos IX y X (San Pedro y San Pablo de Montes, Santiago y San Martín de Peñalba y San Miguel de Escalada) ante la recepción e implantación de aquel nuevo ordo o ritual litúrgico que vino a sustituir al Hispánico, fuertemente asentado en el territorium. Readaptación litúrgica que, con distinta intensidad, producirá tensiones y enfrentamientos entre los miembros de las distintas comunidades monásticas, incluso entre el episcopado y la monarquía (personificada en la figura de Alfonso VI), pero no únicamente. En alguno de estos monasterios la llegada del nuevo ordo supondrá, además, la readaptación de su espacio litúrgico, lo que trajo consigo significativas modificaciones constructivas.

Martínez Tejera, Artemio Manuel

2002-01-01

164

Remodelación del Estadio San Mamés, Bilbao  

Directory of Open Access Journals (Sweden)

Full Text Available Not available.El proyecto de remodelación del Estadio de San Mamés, incluía la renovación total de las Tribunas Norte y Sur con su cobertura, el graderío inferior de la Tribuna Este y la sustitución de apoyos del Arco de sustentación de la cubierta de la Tribuna Oeste.

Maguet, José; Olaguibel, José

1981-01-01

165

Healthcare Pioneers: Dato Samuel Kai San YAPP.  

Directory of Open Access Journals (Sweden)

Full Text Available Dato Samuel Yapp Kai San is a well respected senior surgical consultant working in the RIPAS Hospital. He is currently the most senior consultant and the longest serving healthcare professional in theMinistry of Health, Brunei Darussalam.

2013-01-01

166

Studies on Small-Angle Neutron Scattering (SANS) instrument  

Energy Technology Data Exchange (ETDEWEB)

This research is a sub-project of 'Neutron Beam Applications'. The purpose of this research is to test sample environment facilities of the HANARO instrument in order to prepare for its effective operation. Recently, KAERI took the initiative in utilizing the neutron beams within HANARO facility, and many scientists are interested in performing various studies using the neutron beam. As a result, it is highly recommended to carefully check the HANARO SANS instrument and to test data reproducibility by comparing SANS measurements in the HANARO and the measurements taken at other facilities such as NIST in U.S.A.. We investigated the microstructure and homopolymer distribution in a series of mixtures of PS-PI-PS triblock copolymers and deuterated PS homopolymers by using SANS. We also studied the sol-to-gel transition of aqueous solutions of PEO-PLGA-PEO triblock copolymers which are known to be strong neutron scatterers. By comparing the SANS data taken from the HANARO with those from NIST, we checked sample environment facilities of the HANARO SANS instrument and examined the reproducibility of the HANARO SANS data. Data acquisition and analysis procedure were also carefully evaluated. We acquired the data acquisition and analysis softwares and guidelines of the HANARO SANS data and sample environment based on the on site experience at the NGI SANS (8m SANS) beam line at NIST. Using both HANARO SANS and NIST NGI SANS instruments, we obtained useful information on the microstructure and homopolymer distribution in an series of mixtures of PS-PI-PS triblock copolymers and deuterated PS homopolymers. Furthermore, we analyze the gelation behavior of aqueous solutions of PEO-PLGA-PEO triblock copolymers using both HANARO SANS and NG7 SANS (30m SANS) instruments. As a result, We confirmed the correct performance of sample environment facility and the data reproducibility of the HANARO SANS instrument. 36 figs., 5 tabs. (Author)

Char, Kook Heon [Seoul National University, Seoul (Korea); Kim, Hong Doo [Kyung Hee Univ., Seoul (Korea); Kim, Eu Gene [Hongik Univ., Seoul (Korea)

2001-04-01

167

Uranium occurrences in the pegmatite 'Las Cuevas', province of San Luis, Argentine Republic  

International Nuclear Information System (INIS)

Mineral associations found in an uranium deposit of Sierras Pampeanas, San Luis, are considered in these papers. Damourite stands out among the uranium minerals related to uraninite and coffinite. Pyrite, marcasite and other sulphides are found together with apatite and gummite. Autunite is the uranium secondary mineral more abundant. A mineralization with epigenetic contribution by circulating solutions is suggested to the studied area. (Author)

1993-01-01

168

Renegotiating motherhood:modernity, gender & reproduction in San Miguel de Allende, Mexico  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This thesis is based on fieldwork carried out in the Mexican city of San Miguel de Allende and its outlying communities. In this study I focus on the changing role of mother and wife in relation to family, community, and state. My fieldwork has shown that a younger generation of women portray themse...

Wynne,Kimberly

169

Adsorption behavior of ions related to corrosion phenomena and the hard and soft acids and bases principle; Fushoku gensho ni kanrenshita ion no kyuchaku kyodo to katai oyobi yawarakai san`enki no hosoku  

Energy Technology Data Exchange (ETDEWEB)

This paper explains ion adsorption, corrosion phenomena related thereto, and the relationship between suppression phenomena and the hard and soft acids and bases (HSAB) principle. With regard to adsorption of anions onto metal surface in an acid aqueous solution in which the metal surface is exposed, such anions that act as soft bases perform better adsorption according to the HSAB principle. If the surface substance produced as a result of the adsorption is stable, corrosion is suppressed, and the suppression effect follows the HSAB principle. If the surface substance is unstable, the corrosion rate is accelerated largely by catalytic anode reaction which goes through the anion adsorption process. On the other hand, because oxidized surface of such metals as the ones in an open system neutral aqueous solution is regarded as a hard acid, anions being hard bases make better adsorption. The HSAB principle may be applied to adsorption of anions on a passive iron film, wherein the harder the bases in the anions, the better adsorption is realized. Metallic cations may be utilized as a suppresser in the open system neutral solution. 29 refs., 12 figs., 2 tabs.

Aramaki, K. [Keio University, Tokyo (Japan). Faculty of Science and Technology

1997-06-15

170

SANS facility at the Pitesti 14 MW Triga reactor  

Energy Technology Data Exchange (ETDEWEB)

Full text of publication follows: At the present time, an important not yet fully exploited potentiality is represented by the SANS instruments existent at lower power reactors and reactors in developing countries even if they are, generally, endowed with a simpler equipment and are characterized by the lack of infrastructure to maintain and repair high technology accessories. The application of SANS at lower power reactors and in developing countries nevertheless is possible in well selected topics where only a restricted Q range is required, when scattering power is expected to be sufficiently high or when the sample size can be increased at the expense of resolution. Examples of this type of applications are: 1) Phase separation and precipitates in material science, 2) Ultrafine grained materials (nano-crystals, ceramics), 3) Porous materials such as concretes and filter materials, 4) Conformation and entanglements of polymer-chains, 5) Aggregates of micelles in microemulsions, gels and colloids, 6) Radiation damage in steels and alloys. The need for the installation of a new SANS facility at the Triga Reactor of the Institute of Nuclear Researches in Pitesti, Romania become actual especially after the shutting down of the VVRS Reactor from Bucharest. A monochromatic neutron beam with 1.5 Angstrom {<=} {lambda} {<=} 5 Angstrom is produced by a mechanical velocity selector with helical slots.The distance between sample and detectors plane is (5.2 m ). The sample width may be fixed between 10 mm and 20 mm. The minimum value of the scattering vector is Q{sub min} = 0.005 Angstrom{sup -1} while the maximal value is Q{sub max} = 0.5 Angstrom{sup -1}. The relative error is {delta}Q/Q{sub min} = 0.5. The cooperation partnership between advanced research centers and the smaller ones from developing countries could be fruitful. The formers act as mentors in solving specific problems. Such a partnership was established between INR Pitesti, Romania and JINR Dubna, Russia. The first step in this cooperation consists in the manufacturing at Dubna of a battery of gas filled positional detectors devoted to the SANS instrument from Pitesti. (authors)

Ionita, I.; Anghel, E.; Mincu, M.; Datcu, A. [Institute for Nuclear Research - Pitesti (Romania); Grabcev, B.; Todireanu, S. [National Institute of Materials Physics (NIMP) Bucharest (Romania); Constantin, F. [National Institute of Physics and Nuclear Engineering Bucharest (Romania); Shvetsov, V. [Joint Institute for Nuclear Research Dubna (Russian Federation); Popescu, G. [National College Al. Odobescu Pitesti (Romania)

2006-07-01

171

The magister of Meldola commandry and the church of San Giovanni Battista Il Maestro della Commenda di Meldola e la magione ospitaliera di San Giovanni Battista  

Directory of Open Access Journals (Sweden)

Full Text Available The article Il Maestro della Commenda di Meldola e la magione ospitaliera di San Giovanni Battista treats the decorations of the small church of San Giovanni Battista in Meldola, where there was a domus of Knights Hospitaller of St. John of Jerusalem.The first part of it investigates the history of the monastic-military property in Meldola. In fact, just before the Hospitaller, the church of San Giovanni had been part of the commandry of Santa Maria Biacque, estate of the Knights Templar. After the trial of the Templars (1312) the building complex passed to the Knights Hospitaller, who had another commandry called San Giovanni of Palareto, near Meldola. In the mid-15th Century the knights probably decided to redecorate the church of San Giovanni Battista with wall painting which represent Mary, Child Jesus and John the Baptist.The second part of the article deals with the artistic culture, the conservation and the style of this fresco. In particular, it shows the relation between Meldola's frescos and a group of other wall paintings existent in the province of Forlì. This group of paintings is considered part of the works of an unknown painter of the 15th century. This painter was highly influenced by late gothic culture of Romagna art. Moreover, it seems like he knew some innovation of the regional Renaissance. For this reason we have collected his paintings in a new catalogue and we have conventionally named the painter Maestro della Commenda di Forlì.L’intervento propone, attraverso l’indagine di alcuni dipinti di area forlivese, una prima ricostruzione della personalità di un interessante interprete locale del XV secolo, provvisoriamente denominato Maestro della Commenda di Meldola. Lo studio, parte integrante della mia tesi di dottorato, prende le mosse dall’analisi dell’affresco dell’Oratorio di San Giovanni Battista a Meldola, per poi allargarsi ad altre emergenze del territorio circostante, fino ai lacerti pittorici emersi nella chiesa della Santissima Trinità di Forlì. Nella prima parte dell’articolo viene ricostruita la storia dell’Oratorio di San Giovanni Battista presso Villa Fronticelli a Meldola: già magione templare di Santa Maria Biacque, nel 1312, in seguito al processo ai templari, passò alle dipendenze della precettoria dei cavalieri gerosolimitani di San Giovanni di Palareto. La realizzazione dell’affresco deve essere probabilmente inserita all’interno dei lavori di ristrutturazione intrapresi dai giovanniti dopo la metà del XV secolo.   Nella seconda parte dell’articolo invece si procede alle indagini tecniche e stilistiche relative alla pittura murale che rappresenta la Madonna col Bambino e San Giovanni Battista. L’affresco mutilo è opera di un interessante maestro che agisce nella sfera del tardogotico locale, mostrando però tenui accenti rinascimentali caratteristici alla pittura forlivese tra sesto e settimo decennio del Quattrocento. Muovendo dalle ricerche di Anna Tambini e Giordani Viroli, attraverso l’analisi di diverse testimonianze del territorio, viene così proposta la ricostruzione di un corpus pittorico caratterizzato da stringenti affinità stilistiche, che, confermando l’appartenenza del suo anonimo pittore ad un milieu stilistico caro ad altri interpreti forlivesi del periodo, come il Maestro di Castrocaro o il Maestro di San Pier Damiani, aiuta ulteriormente a chiarire il panorama artistico romagnolo all’avvento della 'brigada melozziana'.

Paolo Cova

2012-01-01

172

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

Directory of Open Access Journals (Sweden)

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

José Miguel Cruz

1999-01-01

173

SAFOD Penetrates the San Andreas Fault  

Directory of Open Access Journals (Sweden)

Full Text Available SAFOD, the San Andreas Fault Observatory at Depth (Fig. 1), completed an important milestone in July 2005 by drilling through the San Andreas Fault at seismogenic depth. SAFOD is one of three major components of EarthScope, a U.S. National Science Foundation (NSF) initiative being conducted in collaboration with the U.S. Geological Survey (USGS). The International Continental Scientific DrillingProgram (ICDP) provides engineering and technical support for the project as well as online access to project data and information (http://www.icdp-online.de/sites/sanandreas/news/news1.html). In 2002, the ICDP, the NSF, and the USGS provided funding for a pilot hole project at the SAFOD site. Twenty scientifi c papers summarizing the results of the pilot hole project as well as pre-SAFOD site characterization studies were published in Geophysical Research Letters (Vol.31, Nos. 12 and 15, 2004).

Mark D. Zoback

2006-01-01

174

San Cristobal Galapagos wind power project  

Energy Technology Data Exchange (ETDEWEB)

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

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

2009-07-01

175

San Rafael mining and fabrication complex today  

International Nuclear Information System (INIS)

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

2005-01-01

176

Geochronology in the San Juan Mountains (Advanced)  

Science.gov (United States)

This is a mathematically more advanced version of the Ages of Rocks and the Earth activity that introduces students to the mathematics of radiometric dating. Students derive the decay equation for the rubidium-strontium isotopic system, then apply it to date rock samples from the San Juan Mountains of southwest Colorado and a meteorite assumed to be approximately coeval with the Earth. Click here to view the full activity on the Kéyah Math Project website.

Semken, Steven; Perkins, Tracy

177

Endogenous Cytokinins in Bougainvillea `San Diego Red'  

Science.gov (United States)

Using chromatographic, chemical, and enzymic techniques, 11 compounds capable of stimulating the division of soybean callus cells were tentatively identified in the root sap of Bougainvillea `San Diego Red.' These cytokinin-like compounds included phosphorylated and glucosylated forms of zeatin, ribosylzeatin, and their dihydro derivatives. In addition, isopentenyl adenosine and isopentenyl adenine were apparently also present. The occurrence of glucosylated derivatives in the root sap of plants has not been substantiated previously.

van Staden, Johannes; Dimalla, Gerard G.

1980-01-01

178

A fatal irradiator accident in San Salvador  

Energy Technology Data Exchange (ETDEWEB)

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

Croft, J.R. (National Radiological Protection Board, Leeds (UK))

1990-01-01

179

San Bernardino National Wildlife Refuge Well 10  

Energy Technology Data Exchange (ETDEWEB)

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

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

1999-12-01

180

Diatomeas potencialmente nocivas del Golfo San Matías (Argentina)/ Potentially harmful diatoms from the San Matías Gulf (Argentina)  

Scientific Electronic Library Online (English)

Full Text Available Abstract in spanish RESUMEN Este trabajo tuvo como objetivo estudiar las diatomeas presentes en las aguas costeras del área norte del Golfo San Matías (Provincia de Río Negro, Argentina) que han sido citadas como productoras de eventos nocivos en otras áreas geográficas. El material fue recolectado en dos estaciones de muestreo: Las Grutas y Piedras Coloradas, relacionadas con bancos naturales y cultivo de bivalvos respectivamente. Dos taxa potencialmente toxígenos y 18 taxa nocivos no (more) toxígenos fueron hallados. A pesar de que algunos de ellos fueron ocasionalmente abundantes en el plancton del área, ninguno produjo discoloraciones evidentes ni se detectó que hubieran causado efectos nocivos durante el período de estudio. Abstract in english ABSTRACT Diatoms responsible for harmful events in other geographic areas, found in the coastal waters of the San Matías Gulf (Río Negro Province, Argentina), were studied. Materials were collected in two sampling stations related to natural banks and cultures of bivalves: Las Grutas and Piedras Coloradas. Two potentially toxigenic taxa and 18 harmful non toxigenic taxa were found. Despite that some of these taxa were occasionally abundant in the plankton of the area, none of them caused evident discolorations or detectable harmful effects during the study period.

Sunesen, Inés; Bárcena, Alejandra; Sar, Eugenia A

2009-04-01

 
 
 
 
181

Development of 40m SANS and Its Utilization Techniques  

International Nuclear Information System (INIS)

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

2010-01-01

182

Occupational skin diseases in the San Francisco Bay Area.  

UK PubMed Central (United Kingdom)

From answers by one-third of the practicing dermatologists in the San Francisco Bay Area to a questionnaire on occupational skin diseases, contact dermatitis due to irritants and sensitizers was found to rank first. Poison oak, which is the leading reported cause on "Doctor's First Report of Work Injury" received by the California Department of Industrial Relations, was sixth on the list of the survey, trailing solvents, cleansing agents, petroleum products and epoxy resins. A history of atopic dermatitis was often noted in current cases of occupational diseases of the skin. Avoidance of exposure or limiting the contact with pathogenic substances-through engineering changes, observation of working conditions by physicians, education of workers-appeared to be the best preventive measures.

Gellin GA; Wolf CR; Milby TH

1970-07-01

183

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

Directory of Open Access Journals (Sweden)

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

Aída Gálvez; Julio Salazar; Lorena Ramírez

2009-01-01

184

Spin-echo methods for SANS and neutron reflectometry  

Energy Technology Data Exchange (ETDEWEB)

The spin-echo principle is applied successfully in small-angle neutron scattering. One of the striking differences with conventional SANS is that the results are in real space. This makes the relation between structure and measurements more direct, as illustrated with a measurement on a grating. Features in the liquid ordering of colloids show up more clearly in real space than in reciprocal space. Long range ordering, however, is seen more clearly in reciprocal space. This is illustrated with measurements on hard-sphere colloids. There are three options to apply the spin-echo principle in neutron reflectivity: to measure with high resolution the specular reflectivity even for rippled or bent surfaces, the in plane off-specular reflectivity or the out of plane reflectivity, respectively.

Bouwman, Wim G. [Interfacultair Reactor Instituut, Delft University of Technology, Mekelweg 15, 2629 JB Delft (Netherlands)]. E-mail: w.g.bouwman@iri.tudelft.nl; Kruglov, Timofey V. [Interfacultair Reactor Instituut, Delft University of Technology, Mekelweg 15, 2629 JB Delft (Netherlands); Plomp, Jeroen [Interfacultair Reactor Instituut, Delft University of Technology, Mekelweg 15, 2629 JB Delft (Netherlands); Theo Rekveldt, M. [Interfacultair Reactor Instituut, Delft University of Technology, Mekelweg 15, 2629 JB Delft (Netherlands)

2005-02-28

185

[A case of pneumonitis induced by Bofu-tsusho-san].  

UK PubMed Central (United Kingdom)

We encountered a patient in whom Bofu-tsusho-san (Chinese herbal drug) had induced pneumonitis. A 65-year-old man was admitted to our hospital because of cough, fever, and dyspnea about one month after treatment with Bofu-tsusho-san. BALF showed an increase in the total cell number and the percentage of lymphocytes. TBLB revealed interstitial pneumonia. The patient recovered after discontinuation of Bofu-tsusho-san alone. We diagnosed Bofu-tsusho-san-induced pneumonitis. Clinicians should be aware of drug-induced pneumonitis in patients receiving herbal drugs.

Matsushima H; Takayanagi N; Ubukata M; Tokunaga D; Mori S; Sato N; Kurashima K; Yanagisawa T; Sugita Y; Kawabata Y; Kanazawa M

2002-12-01

186

Strain-rate profile across the Elsinore, San Jacinto, and San Andreas Faults near Palm Springs, California, 1973-81  

Science.gov (United States)

A profile of the strain accumulation rate along a line trending N50°E across the subparallel Elsinore, San Jacinto, and San Andreas faults near Palm Springs, California, has been constructed from trilateration surveys in the 1973-81 interval. The strain accumulation is principally right-lateral shear across a vertical plane parallel to fault strike (N40°W). The strain rate profile for that component exhibits two clearly resolved maxima, one centered on the San Jacinto fault (?max = 0.35 ± 0.02 µrad/a) and the other on the San Andreas fault (?max = 0.40 ± 0.02 µrad/a) no maximum is associated with the Elsinore fault. This result clearly implies that slip at depth on both the San Andreas and San Jacinto faults is loading the shallower sections of these faults, and that eventually rupture can be expected on both.

King, N. E.; Savage, J. C.

1983-01-01

187

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

Scientific Electronic Library Online (English)

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

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

2012-04-01

188

Huave de San Mateo del Mar, Oaxaca (Huave of San Mateo del Mar, Oaxaca).  

Science.gov (United States)

This document is one of 17 volumes on indigenous Mexican languages and is the result of a project undertaken by the Archivo de Lenguas Indigenas de Mexico. This volume contains information on Huave, an indigenous language of Mexico spoken in San Mateo del Mar, in the state of Oaxaca. The objective of collecting such a representative sampling of…

Mexico Coll. (Mexico City)

189

Trique de San Juan Copala, Oaxaca (Trique of San Juan Copala, Oaxaca).  

Science.gov (United States)

This document is one of 17 volumes on indigenous Mexican languages and is the result of a project undertaken by the Archivo de Lenguas Indigenas de Mexico. This volume contains information on Trique, an indigenous language of Mexico spoken in San Juan Copala, in the state of Oaxaca. The objective of collecting such a representative sampling of the…

Mexico Coll. (Mexico City)

190

Chinanteco de San Juan Lealao, Oaxaca (Chinantec of San Juan Lealao, Oaxaca).  

Science.gov (United States)

This document is one of 17 volumes on indigenous Mexican languages and is the result of a project undertaken by the Archivo de Lenguas Indigenas de Mexico. This volume contains information on Chinantec, an indigenous language of Mexico spoken in San Juan Lealao, in the state of Oaxaca. The objective of collecting such a representative sampling of…

Mexico Coll. (Mexico City)

191

Geothermal potential for heating and cooling facilities, San Bernardino Valley College, San Bernardino, California  

Energy Technology Data Exchange (ETDEWEB)

The potential for converting to geothermal heating at the campus of San Bernardino Valley College is considered. Also considered is the possibility of using well water for water cooled condenser cooling of air conditioning equipment. To provide water supply a production well, water distribution system and an injection well would be installed for each system.

Gemeinhardt, M.A.; Tharaldson, L.C.

1981-07-01

192

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

Science.gov (United States)

The Coast Guard is establishing a safety zone on the navigable waters of the San Diego Bay in support of the United Portuguese SES Centennial Festa. This temporary safety zone is necessary to provide for the safety of the crew, spectators, and other users and vessels of the waterway. Persons and vessels are prohibited from entering into, transiting through, or anchoring within this temporary......

2010-03-30

193

El castillo de San Romualdo (San Fernando, Cádiz). Aproximación estratigráfica y evolución constructiva  

Directory of Open Access Journals (Sweden)

Full Text Available This article shows the results of the archaeological research carried out in the castle of San Romualdo, the most emblematic building of the city of San Fernando and a defensive fortress tied to the control access of Cádiz. The standing building recording has enabled to know the building evolution from its origins until the present. Studies have hitherto confirmed the chronological conclusions already proposed in 2003. That is, the current castle is a medieval Christian building erected in the second half of the 13th century thanks to Mudejar workers and materials reused from a previous building.Presentamos en este artículo los resultados de nuestra investigación arqueológica en el castillo de San Romualdo, el edificio más emblemático de la ciudad de San Fernando y fortaleza defensiva ligada al control del acceso a Cádiz. El análisis estratigráfico de alzados ha permitido conocer la evolución constructiva del edificio, desde sus orígenes hasta la actualidad. Hasta ahora los estudios confirman las conclusiones en cuanto a su datación presentadas en el año 2003, es decir, el castillo, tal y como hoy lo conocemos, es una construcción medieval cristiana, realizada durante la segunda mitad del siglo XIII, con mano de obra mudéjar y con materiales reutilizados de una edificación anterior.

Utrera Burgal, Raquel M.; Tabales Rodríguez, Miguel Ángel

2009-01-01

194

75 FR 54377 - Cattle Point Road Relocation; Draft Environmental Impact Statement; San Juan Island National...  

Science.gov (United States)

...Draft Environmental Impact Statement; San Juan Island National Historical Park; San Juan County, WA; Notice of Availability Summary...agencies for this project, in cooperation with San Juan County, Washington and the Washington...

2010-09-07

195

77 FR 33239 - Prairie Stewardship Plan/Environmental Impact Statement, San Juan Island National Historical Park  

Science.gov (United States)

...Environmental Impact Statement, San Juan Island National Historical Park AGENCY...Statement for Prairie Stewardship Plan, San Juan Island National Historical Park, Washington...for stewardship of prairie areas in San Juan Island National Historical Park...

2012-06-05

196

77 FR 61632 - Final Environmental Impact Statement for Cattle Point Road Relocation, San Juan Island National...  

Science.gov (United States)

...Statement for Cattle Point Road Relocation, San Juan Island National Historical Park, San Juan County, Washington AGENCY: National Park Service...Statement for Cattle Point Road Relocation, San Juan Island National Historical...

2012-10-10

197

78 FR 46504 - Approval and Promulgation of Implementation Plans, State of California, San Joaquin Valley...  

Science.gov (United States)

...California, San Joaquin Valley Unified Air Pollution Control District, New Source Review...for the San Joaquin Valley Unified Air Pollution Control District portion of the California...for the San Joaquin Valley Unified Air Pollution Control District...

2013-08-01

198

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

Science.gov (United States)

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

2010-01-26

199

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

Science.gov (United States)

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

2011-05-09

200

77 FR 66548 - Revisions to the California State Implementation Plan, San Joaquin Valley Unified Air Pollution...  

Science.gov (United States)

...Plan, San Joaquin Valley Unified Air Pollution Control District AGENCY: Environmental...the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD...Plan, San Joaquin Valley Unified Air Pollution Control District's Rule...

2012-11-06

 
 
 
 
201

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

Science.gov (United States)

...Nominations to the World Heritage List: San Antonio Franciscan Missions AGENCY: National...that a draft nomination of the San Antonio Franciscan Missions for inclusion...the proposed nomination of the San Antonio Franciscan Missions. NPS...

2012-06-26

202

40 CFR 81.40 - Metropolitan San Antonio Intrastate Air Quality Control Region.  

Science.gov (United States)

...2009-07-01 false Metropolitan San Antonio Intrastate Air Quality Control...Regions § 81.40 Metropolitan San Antonio Intrastate Air Quality Control Region. The Metropolitan San Antonio Intrastate Air Quality...

2009-07-01

203

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

Science.gov (United States)

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

2011-07-28

204

Solving the problem of SANS instrument optimization  

Energy Technology Data Exchange (ETDEWEB)

The problem of the optimization of small-angle neutron scattering instruments installed at steady neutron sources is discussed. The optimum solution is shown to be that in which full use is made of either the available luminous area of the source or the available hall space and not necessarily that corresponding to the equal-flight-paths design. Design criteria and their implementation are discussed taking into account space constraints on the instrument's layout. It is shown that the performance of currently operating SANS facilities can be substantially improved by following the optimization procedure proposed by the authors. (orig.).

Margaca, F.M.A.; Falcao, A.N.; Salgado, J.F.; Carvalho, F.G. (Dept. Fisica, ICEN/LNETI, Sacavem (Portugal))

1991-12-01

205

Characterization of nanoporous superalloy by SANS  

Energy Technology Data Exchange (ETDEWEB)

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

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

2006-11-15

206

Characterization of nanoporous superalloy by SANS  

International Nuclear Information System (INIS)

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

2006-11-15

207

Role of magnetotellurics in exploration of San Juan sag  

Energy Technology Data Exchange (ETDEWEB)

The San Juan Mountains of southwestern Colorado, consisting almost entirely of Tertiary volcanic rocks, are bounded on the southwest by the mature oil and gas province of the San Juan basin and on the east by the San Luis basin. Continuation of the sediments from the San Juan basin eastward beneath the volcanics was suspected based on the reported presence of seeps and the evaluation of regional gravity and magnetic data. The objective of applying MT to the exploration of the San Juan sag area was to determine, through the measurement of subsurface resistivity, whether the hydrocarbon-rich sedimentary rocks of the San Juan basin indeed extended eastward beneath the San Juan volcanics and, if so, to what extent. The MT program the authors describe was a reconnaissance profile, one of the initial investigations of the area. MT data were acquired at 12 sites extending from Pagosa Springs east across Wolf Creek Pass to Del Norte on the western margin of the San Luis basin. Data were acquired for calibration at well sites near Pagosa Springs and northeast of Del Norte. Site spacing was 4-8 mi. The 12-site program was designed to test the geologic concept and evaluate for a minimum expenditure the feasibility of applying MT to the problem.

Orange, A.; Schofield, J. (Emerald Exploration Consultants, Austin, TX (USA))

1989-09-01

208

San Luis Rey River Basin: Overview of Cultural Resources.  

Science.gov (United States)

The drainage system of the San Luis Rey River is a region of major cultural and historic significance. Over 300 archeological sites and a number of recognized historic locations have been identified in the drainage. Any proposed project in the San Luis Re...

S. A. Cupples K. Hedges

1977-01-01

209

San Juanico Hydrid Power System Technical and Institutional Assessment.  

Science.gov (United States)

San Juanico is a fishing village of approximately 120 homes in the Municipality of Comondu, Baja California. In April, 1999, a hybrid power system was installed in San Juanico to provide 24-hour power, which was not previously available. Before the instal...

D. Corbus C. Newcomb

2004-01-01

210

Pathways to ICT Education and Careers in San Francisco  

Science.gov (United States)

This report documents research on organizations, programs and efforts relevant to ICT Pathways in San Francisco. The ICT Pathways Project aims to "gather strategic stakeholders in San Francisco to improve pathways to ICT education and careers, grow our own ICT workforce, meet employer ICT workforce demand, and improve our economy in the process." This 194 page document is available as a PDF for download.

2012-10-15

211

Characterization of alumina using small angle neutron scattering (SANS)  

International Nuclear Information System (INIS)

[en] Alumina powder was synthesized from an aluminium precursor and studied using small angle neutron scattering (SANS) technique and complemented with transmission electron microscope (TEM). XRD measurement confirmed that the alumina produced was high purity and highly crystalline ?phase. SANS examination indicates the formation of mass fractals microstructures with fractal dimension of about 2.8 on the alumina powder. (Author)

2007-01-01

212

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

Energy Technology Data Exchange (ETDEWEB)

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

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

1996-03-01

213

SanM catalyzes the formation of 4-pyridyl-2-oxo-4-hydroxyisovalerate in nikkomycin biosynthesis by interacting with SanN.  

Science.gov (United States)

Nikkomycins are peptidyl nucleoside antibiotics with potent activities against phytopathogenic and human pathogenic fungi. The sanM and sanN genes are required for the nikkomycin biosynthesis of Streptomyces ansochromogenes. In the present study, interaction between SanM and SanN was identified by yeast two-hybrid and co-immunoprecipitation assays. Moreover, SanM and SanN were heterologously expressed and purified. Further biochemical assay demonstrated that the SanM-SanN interaction is essential for SanM aldolase activity but not for SanN dehydrogenase activity. SanM converts piconaldehyde and 2-oxobutyrate to 4-pyridyl-2-oxo-4-hydroxyisovalerate in nikkomycin biosynthesis by interacting with SanN. Steady state kinetics analysis revealed that K(m) and k(cat)/K(m) of SanM are 123.2 microM and 11.4 mM(-1)s(-1) for picolinaldehyde, while 335.6 microM and 4.0 mM(-1)s(-1) for 2-oxobutyrate, respectively. However, SanN as a dehydrogenase is independent of SanM. PMID:17659257

Ling, Hongbo; Wang, Guojun; Tian, Yuqing; Liu, Gang; Tan, Huarong

2007-07-16

214

Use of SANS and SAXS in study of nanoparticles  

International Nuclear Information System (INIS)

Small Angle Neutron Scattering (SANS) and Small Angle X-ray Scattering (SAXS) are essentially diffraction experiments involving small (?1 deg) scattering angles. Unlike conventional diffraction experiments (XRD or Neutron Diffraction) where one examines the specimen with an atomic resolution (?0.2nm), SANS / SAXS are used to investigate structures on a length scale of ?10 nm. Hence, SANS / SAXS are ideal techniques for studying the sizes and shapes of nano-particles. Because of differences in contrast for neutrons and x-rays, a combined SANS and SAXS study, at times, provides information about the core and the shell structure of nano particles. This talk will give an introduction to the techniques of SANS and SAXS and their applications in material science. Recent results of study of core-shell structure of micelles (nanoparticles of organic material) will be shown. (author)

2004-01-01

215

San Miguel sea lion virus fed to mink and pigs.  

UK PubMed Central (United Kingdom)

Mink became infected with San Miguel sea lion virus when fed ground meat from seal carcasses showing vesicular-like lesions in the skin. The mink also contracted the infection when they were fed San Miguel sea lion virus infected pig meat or cell culture propagated virus. San Miguel sea lion virus infection in mink was inapparent but the virus was isolated from blood and rectal swabs. Pigs treated similarly with the same virus preparations given to mink developed a severe vesicular disease syndrome similar to that produced by vesicular exanthema of swine. In a separate trial, pigs fed a large sample of commercial ground seal meat did not develop disease signs or antibodies. Further work is needed to assess the hazard of introducing San Miguel sea lion virus into swine on the same premises when potentially San Miguel sea lion virus infective seal meat is fed to mink.

Wilder FW; Dardiri AH

1978-04-01

216

Sequence stratigraphy of a Pliocene delta complex deposited in an active margin setting, Etchegoin and San Joaquin gas sands, San Joaquin basin, California  

Energy Technology Data Exchange (ETDEWEB)

Prolific gas sands of the Pliocene Etchegoin and San Joaquin formations of the southern San Joaquin basin, California, are part of a 1300-m thick succession of deltaic sediments that record the final regression of the Pacific Ocean from a tectonically active, restricted basin associated with the California transform margin. Individual field studies, lacking a regional framework and based primarily on electric log data, correlate these gas sands to the extent that individual sands maintain the same stratigraphic level within the succession. However, a high-resolution sequence stratigraphic framework, constructed from recent 3D-seismic data and detailed well log correlations on the Bakersfield Arch area of the basin, indicates that the Pliocene succession is part of a south/southwest prograding delta complex. Therefore, sands climb up-section in the landward direction and grade laterally from deep-water to shallow-water facies. Because lithofacies boundaries cross chronostratigraphic surfaces, previous interpretations of the reservoir architecture are inaccurate. This model increases predictability of reservoir facies by constraining lithofacies mapping and enables interpretation of the effects on deposition of the integrated and inter-related controls of tectonics, eustatic sea-level change, and sediment supply. With this understanding, a well-defined model of the stratal architecture of the Pliocene succession of the southern San Joaquin basin is now possible.

Steward, D.C. (California State Univ., Bakersfield, CA (United States))

1996-01-01

217

Sequence stratigraphy of a Pliocene delta complex deposited in an active margin setting, Etchegoin and San Joaquin gas sands, San Joaquin basin, California  

Energy Technology Data Exchange (ETDEWEB)

Prolific gas sands of the Pliocene Etchegoin and San Joaquin formations of the southern San Joaquin basin, California, are part of a 1300-m thick succession of deltaic sediments that record the final regression of the Pacific Ocean from a tectonically active, restricted basin associated with the California transform margin. Individual field studies, lacking a regional framework and based primarily on electric log data, correlate these gas sands to the extent that individual sands maintain the same stratigraphic level within the succession. However, a high-resolution sequence stratigraphic framework, constructed from recent 3D-seismic data and detailed well log correlations on the Bakersfield Arch area of the basin, indicates that the Pliocene succession is part of a south/southwest prograding delta complex. Therefore, sands climb up-section in the landward direction and grade laterally from deep-water to shallow-water facies. Because lithofacies boundaries cross chronostratigraphic surfaces, previous interpretations of the reservoir architecture are inaccurate. This model increases predictability of reservoir facies by constraining lithofacies mapping and enables interpretation of the effects on deposition of the integrated and inter-related controls of tectonics, eustatic sea-level change, and sediment supply. With this understanding, a well-defined model of the stratal architecture of the Pliocene succession of the southern San Joaquin basin is now possible.

Steward, D.C. [California State Univ., Bakersfield, CA (United States)

1996-12-31

218

Abundancia y distribución de las especies ícticas (Osteichthyes) del río San Francisco-Cosquín, Córdoba, Argentina  

Directory of Open Access Journals (Sweden)

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

Hued Andrea Cecilia; Bistoni María de los Ángeles

2001-01-01

219

SAN MICHELE. ENTRE CIELO Y MAR / San Michele, between sky and sea  

Directory of Open Access Journals (Sweden)

Full Text Available ESUMEN El cementerio es uno de los tipos arquitectónicos más profundos y metafóricos. El concurso para la ampliación del cementerio de San Michele, convocado en 1998 por la administración Municipal de Venecia, se convierte en un excelente campo de pruebas sobre el que poder analizar el contexto histórico en torno a esta tipología, y su relación con la ciudad y el territorio. El estudio de este caso concreto nos permite descubrir personajes, relaciones casuales y hallazgos que se despliegan a lo largo del texto. La historia del cementerio de San Michele es también la crónica de la transformación de la ciudad de Venecia y su Laguna. Interpretando este concurso como un instrumento de investigación, el objetivo del artículo es el de comprender la realidad contemporánea de la arquitectura funeraria a través de la isla de San Michele, Venecia, y las propuestas finalistas de Carlos Ferrater, Enric Miralles y David Chipperfield. Una historia bajo la cual se vislumbran claves que nos sirven para reflexionar acerca del cementerio contemporáneo, la ciudad y el territorio.SUMMARY The cemetery is one of the most profound and metaphorical kinds of architecture. The competition for the extension of the San Michele Cemetery, called in 1998 by the Venice municipal administration, is an excellent testing ground on which to analyse the historical context surrounding this type of architecture, and its relationship with the city and the region. The study of this particular case allows us to uncover characters, casual relationships and findings that unfold throughout the text. The history of the San Michele cemetery is also the chronicle of the transformation of the city of Venice and its Lagoon. Interpreting this competition as a research tool, the aim of the paper is to understand the contemporary reality of funerary architecture through the island of San Michele, Venice, and the finalist proposals of Carlos Ferrater, Enric Miralles and David Chipperfield. It is a history in which keys are glimpsed that serve our reflection about the contemporary cemetery, the city and the region.

Pablo Blázquez Jesús

2012-01-01

220

Pierre Baron et alii, On bosse ici, on reste ici ! La grève des travailleurs sans papiers : une aventure inédite  

Directory of Open Access Journals (Sweden)

Full Text Available Qu’est ce que « travailler sans papiers » veut dire ? Après une relative éclipse durant les décennies 1980/90, au profit d’une focalisation de l’attention sur l’immigration comme « source de problèmes », y a-t-il eu, grâce à la grève des sans-papiers, un retour dans le débat public à la figure de l’immigré comme travailleur? Telles sont les principales questions que les auteurs posent dans le cadre d’un contexte où la valeur travail occupe toujours une place centrale dans l’organisation socia...

Inês Espirito Santo

2012-01-01

 
 
 
 
221

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

Directory of Open Access Journals (Sweden)

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

Inés Claudia Daga; Marcelo Javier Pierotto

2011-01-01

222

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

Energy Technology Data Exchange (ETDEWEB)

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

Varney, Peter J.

2002-04-23

223

HOWARD FORK ACID ROCK DRAINAGE SOURCE INTERCEPTION STUDY; HOWARD FORK OF THE SAN MIGUEL RIVER NEAR OPHIR, COLORADO  

Science.gov (United States)

This project proposes to analyze regional hydrogeology as it relates to mine workings which discharge significant heavy metals into the Howard Fork of the San Miguel River and recommend strategies to intercept and divert water away from mineralized zones. The study also includes...

224

Demography of the San Francisco gartersnake in coastal San Mateo County, California  

Science.gov (United States)

The San Francisco gartersnake Thamnophis sirtalis tetrataenia has been federally listed as endangered since 1967, but little demographic information exists for this species. We examined the demography of a San Francisco gartersnake population on approximately 213 ha of California coastal prairie in San Mateo County, California, from 2007 to 2010. The best-supported mark-recapture model indicated annual variation in daily capture probabilities and annual survival rates. Abundance increased throughout the study period, with a mean total population from 2008 to 2010 of 443 (95% CI = 313-646) individuals. Annual survival was slightly greater than that of most other gartersnakes, with an annual probability of survival of 0.78 (0.55-0.95) in 2008-2009 and 0.75 (0.49-0.93) in 2009-2010. Mean annual per capita recruitment rates were 0.73 (0.02-2.50) in 2008-2009 and 0.47 (0.02-1.42) in 2009-2010. From 2008 to 2010, the probability of an increase in abundance at this site was 0.873, with an estimated increase of 115 (-82 to 326) individuals. The estimated population growth rate in 2008-2009 was 1.52 (0.73-3.29) and in 2009-2010 was 1.21 (0.70-2.17). Although this population is probably stable or increasing in the short term, long-term studies of the status of the San Francisco gartersnake at other sites are required to estimate population trends and to elucidate mechanisms that promote the recovery of this charismatic member of our native herpetofauna.

Halstead, Brian J.; Wylie, Glenn D.; Amarello, Melissa; Smith, Jeffrey J.; Thompson, Michelle E.; Routman, Eric J.; Casazza, Michael L.

2011-01-01

225

San Carlos Apache Tribe - Energy Organizational Analysis  

Energy Technology Data Exchange (ETDEWEB)

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

Rapp, James; Albert, Steve

2012-04-01

226

Paleomagnetism of San Cristobal Island, Galapagos  

Science.gov (United States)

Isla San Cristobal, the most easterly of the Galapagos Islands, consists of two parts: a large volcano constitutes the southwest half of the island and an irregular apron of small cones and flows makes up the northeast half. As some of the younger flows on the flanks of the large volcano are reversely magnetized, the minimum age of the volcano is 0.7 my, which is the age of the Brunhes-Matuyama reversal boundary. The true age is probably several times greater. The cones and flows to the northeast are all normally magnetized. The between-site angular dispersion of virtual poles is 11.3?? - a value consistent with mathematical models for the latitude dependence of geomagnetic secular variation. ?? 1971.

Cox, A.

1971-01-01

227

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

Directory of Open Access Journals (Sweden)

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

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

2009-01-01

228

Paleohydrogeology of the San Joaquin basin, California  

Energy Technology Data Exchange (ETDEWEB)

Mass transport can have a significant effect on chemical diagenetic processes in sedimentary basins. This paper presents results from the first part of a study that was designed to explore the role of an evolving hydrodynamic system in driving mass transport and chemical diagenesis, using the San Joaquin basin of California as a field area. The authors use coupled hydrogeologic models to establish the paleohydrogeology, thermal history, and behavior of nonreactive solutes in the basin. These models rely on extensive geological information and account for variable-density fluid flow, heat transport, solute transport, tectonic uplift, sediment compaction, and clay dehydration. In the numerical simulations, tectonic uplift and ocean regression led to large-scale changes in fluid flow and composition by strengthening topography-driven fluid flow and allowing deep influx of fresh ground water in the San Joaquin basin. Sediment compaction due to rapid deposition created moderate overpressures, leading to upward flow from depth. The unusual distribution of salinity in the basin reflects influx of fresh ground water to depths of as much as 2 km and dilution of saline fluids by dehydration reactions at depths greater than {approximately}2.5 km. Simulations projecting the future salinity of the basin show marine salinities persisting for more than 10 m.y. after ocean regression. Results also show a change from topography- to compaction-driven flow in the Stevens Sandstone at ca. 5 Ma that coincides with an observed change in the diagenetic sequence. Results of this investigation provide a framework for future hydrologic research exploring the link between fluid flow and diagenesis.

Wilson, A.M.; Garven, G. [Johns Hopkins Univ., Baltimore, MD (United States). Morton K. Blaustein Dept. of Earth and Planetary Sciences; Boles, J.R. [Univ. of California, Santa Barbara, CA (United States). Dept. of Geological Sciences

1999-03-01

229

Site prospection at San Pedro Mártir  

Scientific Electronic Library Online (English)

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

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

2008-01-01

230

Asbestos in the western San Joaquin Valley  

Energy Technology Data Exchange (ETDEWEB)

Attention has recently been focused on high selenium concentrations in soil and water along the west side of California's San Joaquin Valley. The occurrence of chrysotile asbestos fibers, another trace substance, in soil and water on the west side of the valley near the city of Coalinga was first detected in 1980 when sampling was performed to identify the source of asbestos fibers in the California Aqueduct. Subsequent data collected primarily by the California Department of Water Resources (CDWR) has shown the distribution of naturally occurring asbestos fibers in an area centered around the Arroyo Pasajero watershed. This paper discusses watershed geology, the new Idria serpentinite body, hydrology and sediment yield, asbestos measurement techniques, and asbestos distribution in the watershed. The New Idria serpentinite body, which constitutes only about 1% of the total Arroyo Pasajero drainage area, is the primary source of asbestos fibers detected on the alluvial fan deposits of the San Joaquin Valley floor. The asbestos fibers enter the arroyo tributaries in the upper watershed and are transported along with other sediment downstream to the alluvial fan. Stream channel bed and bank erosion in Pleasant Valley and the lower watershed yields additional sediment having low levels of asbestos fibers. Naturally occurring waterborne asbestos concentrations on the lower fan exceed the proposed EPA drinking water standard, a condition not uncommon elsewhere in California. Asbestos concentrations in fan soils are generally just below the level at which the soil could be classified as a hazardous waste by the California Administrative Code. These results demonstrate to what extent a very small portion of the watershed can contribute to downstream trace concentrations.

Jones, J.

1988-07-01

231

Nonvolcanic tremor evolution and the San Simeon and Parkfield, California, earthquakes.  

UK PubMed Central (United Kingdom)

Nonvolcanic tremors occur adjacent to locked faults and may be closely related to the generation of earthquakes. Monitoring of the San Andreas Fault in the Parkfield, California, region revealed that after two strong earthquakes, tremor activity increased in a nearly dormant tremor zone, increased and became periodic in a previously active zone, and has remained elevated and periodic for over 4 years. Static shear- and Coulomb-stress increases of 6 to 14 kilopascals from these two earthquakes are coincident with sudden increases in tremor rates. The persistent changes in tremor suggest that stress is now accumulating more rapidly beneath this part of the San Andreas Fault, which ruptured in the moment magnitude 7.8 Ft. Tejon earthquake of 1857.

Nadeau RM; Guilhem A

2009-07-01

232

Structural response of polyelectrolyte dendrimer towards molecular protonation: the inconsistency revealed by SANS and NMR  

International Nuclear Information System (INIS)

Polyamidoamine (PAMAM) dendrimers and their charged state in deuterium oxide have been investigated with proton pulsed field gradient diffusion nuclear magnetic resonance (PFG-NMR) and small-angle neutron scattering (SANS) techniques. NMR measurements suggest that significant variation of the hydrodynamic radius, calculated by the Stokes-Einstein relation with appropriate surface conditions, is observed upon increasing the molecular protonation. However, a comparative SANS experiment indicates little dependence of the dendrimer global size, in terms of its radius of gyration, on molecular protonation. The inconsistency indicates the necessity of incorporating the effect of molecular interface modification and molecular porosity provided by dressed counterions, when dynamical measurements are used for the determination of the structural characteristics of ionic soft colloids even in dilute suspensions.

2012-02-15

233

Chemistry and microbiology of a sewage spill in South San Francisco Bay.  

Science.gov (United States)

During September 1979, the breakdown of a waste treatment plant resulted in discharge of 1.5 X 107 m3 of primary- treated sewage into a tributary of South San Francisco Bay. Chemical and microbial changes occurred within the tributary as decomposition and nitrification depleted dissolved oxygen. Associated with anoxia were relatively high concentrations of particulate organic carbon, dissolved CO2, CH4, C2H4, NH4+, and fecal bacteria, and low phytoplankton biomass and photosynthetic oxygen production. South San Francisco Bay experienced only small changes in water quality, presumably because of its large volume and the assimilation of wastes that occurred within the tributary. Water quality improved rapidly in the tributary once normal tertiary treatment resumed. -Authors

Cloern, J. E.; Oremland, R. S.

1983-01-01

234

Stable, rapid rate of slip since inception of the San Jacinto fault, California  

Science.gov (United States)

California, where the San Jacinto fault (SJF) and San Andreas fault (SAF) accommodate the majority of the dextral shear deformation between the Pacific and North American plates, initiation of the SJF led to an apparent decline in the slip rate of the SAF. Previous studies suggest that since then, slip rate has covaried between these faults (possibly due to changes in fault strength, variation in topographic loading along a fault, or the development of new faults) and that presently the SJF is the dominant plate boundary structure. However, we dated displaced sedimentary deposits and landforms over three distinct time intervals since ~700 ka, and our results imply a constant slip rate of 12.1+3.4/-2.6 mm/yr. This rate is similar to the fault's lifetime rate and from rates derived from geodesy, suggesting that since the SJF initiated, its slip rate has remained relatively stable and does not exceed that of the SAF.

Blisniuk, Kimberly; Oskin, Michael; MéRiaux, Anne-Sophie; Rockwell, Thomas; Finkel, Robert C.; Ryerson, Frederick J.

2013-08-01

235

Structural response of polyelectrolyte dendrimer towards molecular protonation: the inconsistency revealed by SANS and NMR  

Science.gov (United States)

Polyamidoamine (PAMAM) dendrimers and their charged state in deuterium oxide have been investigated with proton pulsed field gradient diffusion nuclear magnetic resonance (PFG-NMR) and small-angle neutron scattering (SANS) techniques. NMR measurements suggest that significant variation of the hydrodynamic radius, calculated by the Stokes-Einstein relation with appropriate surface conditions, is observed upon increasing the molecular protonation. However, a comparative SANS experiment indicates little dependence of the dendrimer global size, in terms of its radius of gyration, on molecular protonation. The inconsistency indicates the necessity of incorporating the effect of molecular interface modification and molecular porosity provided by dressed counterions, when dynamical measurements are used for the determination of the structural characteristics of ionic soft colloids even in dilute suspensions.

Hong, Kunlun; Liu, Yun; Porcar, Lionel; Liu, Dazhi; Gao, Carrie Y.; Smith, Gregory S.; Herwig, Kenneth W.; Cai, Sheng; Li, Xin; Wu, Bin; Chen, Wei-Ren; Liu, Li

2012-02-01

236

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

Scientific Electronic Library Online (English)

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

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

2009-06-01

237

Fitting the datum of SANS with Pxy program  

International Nuclear Information System (INIS)

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

2009-01-01

238

UML2SAN: Toward A New Software Performance Engineering Approach  

Directory of Open Access Journals (Sweden)

Full Text Available Software Performance Engineering (SPE) has recently considered as an important issue in the software development process. It consists on evaluate the performance of a system during the design phase. We have recently proposed a new methodology to generate a Stochastic Automata Network (SAN) model from a UML model, to consequently obtain performance predications from UML specifications. In this paper, we expand our idea to cover more complex UML models taking in advantage the modularity of SAN in modeling large systems. A formal description of the generation process is presented. The new extensiongives rise to a serious approach in SPE that we call UML2SAN.

Ihab Sbeity; Mohamed Dbouk; Ilfat Ghamlouche

2012-01-01

239

San Juanico Hybrid System Technical and Institutional Assessment: Preprint  

Energy Technology Data Exchange (ETDEWEB)

San Juanico is a fishing village of approximately 120 homes in the Municipality of Comondu, Baja California. In April, 1999, a hybrid power system was installed in San Juanico to provide 24-hour power, which was not previously available. Before the installation of the hybrid power system, a field study was conducted to characterize the electrical usage and institutional and social framework of San Juanico. One year after the installation of the hybrid power system a''post-electrification'' study was performed to document the changes that had occurred after the installation. In December of 2003, NREL visited the site to conduct a technical assessment of the system.

Corbus, D.; Newcomb, C.; Yewdall, Z.

2004-07-01

240

SANS spectra of the fractal supernucleosomal chromatin structure models  

International Nuclear Information System (INIS)

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

2012-03-30

 
 
 
 
241

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

Scientific Electronic Library Online (English)

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

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

2010-11-01

242

A biomarker study using mussels deployed in San Diego Bay  

Energy Technology Data Exchange (ETDEWEB)

In the summer of 1995 a comprehensive assessment of the extent and consequences of marine environmental contamination in the area of Naval Station San diego was conducted. The study addressed contamination sources, distributions, concentrations, transport, sediment-water exchange, biological effects, and degradation. The biological effects portion of the study included contaminant bioaccumulation, growth, and biomarker measurements, in mussels deployed at six stations around the Naval Station. The mussels were deployed for {approximately} 30 days in plastic mesh bags, placed 1 meter above the bottom. To reduce variability the mussels for the study were initially sorted within an extremely narrow size range, 37.8 {+-} 0.6 mm. DNA damage as measured using the comet assay, and tissue levels of stress proteins hsp 60 and hsp 70, were the biomarkers measured. In addition, mussel tissue extracts were applied to the P450 (CYP1A1) reporter gene system. Stress related biological effects increased in relation to sediment contaminants at all but one station. Evidence from this study and an earlier 1993 study suggests that the non-sediment associated effects observed at one station may be the result of PAH photoactivation of accumulated PAHs.

Steinert, S.; Montee, R.S. [Computer Sciences Corp., San Diego, CA (United States). Marine Sciences Dept.; Chadwick, B.; Leather, J. [NCCOSC, San Diego, CA (United States); Sanders, B. [California State Univ., Long Beach, CA (United States)] Salazar, M. [NOAA, Seattle, WA (United States); Salazar, S. [EVS Consultants, Seattle, WA (United States); Anderson, J. [Columbia Analytical Services, Carlsbad, CA (United States)

1995-12-31

243

Investigating Sources and Emissions of Volatile Organic Compounds in California's San Joaquin Valley  

Science.gov (United States)

Emissions of Volatile Organic Compounds (VOCs) are regulated both as primary air pollutants and as precursors to the formation of secondary organic aerosol and tropospheric ozone. The San Joaquin Valley, a non-attainment area for ozone and PM2.5, contains a variety of point, area, and mobile VOC sources that contribute to both primary and secondary pollution. Using ambient measurements of over 100 different VOCs and Intermediate Volatility Organic Compounds (IVOCs) made at multiple field sites, we assess the magnitude and importance of various VOC sources in the San Joaquin Valley. Hourly measurements were made during the spring and summer of 2010 via in-situ gas chromatography in Bakersfield, CA as part of the CalNex experiment and also at a rural site located 100 km north of Bakersfield. Additionally, in-situ measurements of fresh motor vehicle exhaust were made in Oakland's Caldecott tunnel during the summer of 2010. Measurements include a broad array of anthropogenic and biogenic VOCs ranging in size from 1 to 17 carbon atoms, including many compounds with functional groups or substituents (e.g. aldehydes, ketones, alcohols, halogens, sulfur, & nitrogen). Using statistical methods of source apportionment, covariance, source receptor modeling, and air parcel back trajectories, we assess the impact of various sources on observed VOC concentrations at our field sites in the San Joaquin Valley. Prevalent sources include gasoline and diesel-vehicle exhaust, petroleum extraction/refining, biogenic emissions from agricultural crops and natural vegetation, and emissions from dairy operations and animal husbandry. We use measurements of fresh motor vehicle emissions from the Caldecott tunnel to constrain apportionment of gasoline and diesel-related VOCs and IVOCs in the San Joaquin Valley. Initial results from Bakersfield show substantial influence from local anthropogenic VOC sources, but there is evidence for transport of emissions from both anthropogenic and biogenic sources elsewhere in the region. For example, large biogenic sources appear to be regional rather than local since concentrations of isoprene peak in the late afternoon/evening suggesting transport from northern parts of the valley. We observed elevated concentrations of numerous alcohols and carbonyls in the San Joaquin Valley; for example mixing ratios of ethanol and acetone at the Bakersfield supersite had inner quartile ranges of 1.2-9.4 ppbv and 0.58-1.6 ppbv, with daytime averages near 2 and 1 ppbv, respectively. Additionally, we assess the sources and emissions of the IVOCs observed in the San Joaquin Valley, which include polycyclic aromatic hydrocarbons, large biogenic compounds, and high molecular weight alkanes and aromatics.

Gentner, D. R.; Harley, R. A.; Weber, R.; Karlik, J. F.; Goldstein, A. H.

2011-12-01

244

Study of vibrations and stabilization of linear collider final doublets at the sub-nanometer scale; Etude des vibrations et de la stabilisation a l'echelle sous-nanometrique des doublets finaux d'un collisionneur lineaire  

Energy Technology Data Exchange (ETDEWEB)

CLIC is one of the current projects of high energy linear colliders. Vertical beam sizes of 0.7 nm at the time of the collision and fast ground motion of a few nanometers impose an active stabilization of the final doublets at a fifth of nanometer above 4 Hz. The majority of my work concerned vibrations and active stabilization study of cantilever and slim beams in order to be representative of the final doublets of CLIC. In a first part, measured performances of different types of vibration sensors associated to an appropriate instrumentation showed that accurate measurements of ground motion are possible from 0.1 Hz up to 2000 Hz on a quiet site. Also, electrochemical sensors answering a priori the specifications of CLIC can be incorporated in the active stabilization at a fifth of nanometer. In a second part, an experimental and numerical study of beam vibrations enabled to validate the efficiency of the numerical prediction incorporated then in the simulation of the active stabilization. Also, a study of the impact of ground motion and of acoustic noise on beam vibrations showed that an active stabilization is necessary at least up to 1000 Hz. In a third part, results on the active stabilization of a beam at its two first resonances are shown down to amplitudes of a tenth of nanometer above 4 Hz by using in parallel a commercial system performing passive and active stabilization of the clamping. The last part is related to a study of a support for the final doublets of a linear collider prototype in phase of finalization, the ATF2 prototype. This work showed that relative motion between this support and the ground is below imposed tolerances (6 nm above 0.1 Hz) with appropriate boundary conditions. (author)

Bolzon, B

2007-11-15

245

SAN JUAN BAY ESTUARY PROGRAM IMPLEMENTATION REVIEW ATTACHMENTS  

Science.gov (United States)

A compilation of attachments referenced in the San Juan Bay Estuary Program Implementation Review (2004). Materials include, entity reports, water and sediment quality action plans, progress reports, correspondence with local municipalities and Puerto Rican governmental agencies,...

246

Microstructure of magnetite doped elastomers investigated by SAXS and SANS  

International Nuclear Information System (INIS)

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

2008-01-01

247

Cryptococcus Neoformans in Pigeon Feces in San Francisco  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Typical Cryptococcus neoformans was isolated from one of 10 specimens of pigeon feces collected in downtown San Francisco. This isolation from a small sample suggests considerable prevalence of this important pathogen and tends to confirm that it is ubiquitous.

Halde, Carlyn; Fraher, Margaret Anne

248

City of San Antonio Car-Sharing Feasibility Study.  

Science.gov (United States)

Given the positive environmental benefits of car sharing, and its increased adoption by municipalities throughout the Country, the City of San Antonio engaged Public Financial Management, Inc. (PFM) to perform a car-sharing feasibility study in 2010. PFM ...

2011-01-01

249

Xeiras heráldicas: igrexa de San Fiz de Asma  

Directory of Open Access Journals (Sweden)

Full Text Available There are studied and analyze the historical and heraldic testimonies of the church of San Fiz de Asma (Chantada. Lugo), contributing documentary base for their correct identificationNo disponible

Otero Piñeyro Maseda, Pablo S.; García González-Ledo, Xose Antón

2007-01-01

250

Using SANs and NAS Help for Storage Administrators  

CERN Document Server

Storage Area Networks (SANs) and Network Attached Storage (NAS) allow organizations to manage and back up huge file systems quickly. W. Curtis Preston's insightful book takes you through the ins and outs of building and managing large data centers using SANs and NAS. Whether you're a seasoned storage administrator or a network administrator charged with taking on this role, you'll find all the information you need to make informed architecture and data management decisions.

Preston, W

2009-01-01

251

San Martín en el imaginario popular del siglo XIX  

Scientific Electronic Library Online (English)

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

Greco de Álvarez, Andrea

2012-06-01

252

Recalibrated turbulence profiles at San Pedro Mártir  

Scientific Electronic Library Online (English)

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

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

2011-04-01

253

Edificio para ambulatorio San Francisco – (EE. UU.)  

Directory of Open Access Journals (Sweden)

Full Text Available The 50,470 m2 the total area of the hospital is distributed as follows: 18,900 m2 for the 22 main clinics and for the additional clinics; 2,770 m2 for complementary activities; and the remaining 28,800 m2 for a parking lot with space for 700 cars. The building occupies a site that slopes strongly towards the north across which runs the pedestrian access from one of the circumference roads to the main façade; the access road for the vehicles leads to the back facade, where the natural slope of the ground has been taken advantage of to build the 5 storey parking building. The two main functions —the clinics and the parking house— are conveniently separated though connected with each other by means of corridors and lifts. The interior design of the clinics is very flexible so as to allow for further enlargements. The patients' waiting rooms are provided with a glazed façade and have a beautiful view over the San Francisco Bay and its surroundings. The construction is entirely of concrete and its structure is calculated ín such a manner as to allow for two additional storeys.Cuenta con una superficie total construida de 50.470 m2, repartidos de la siguiente forma: 18.900 se destinan a la distribución de 22 clínicas principales y otras secundarias; 2.770 a locales de actividades complementarias; y el resto, 28.800 m2, a aparcamiento con capacidad para 700 plazas. El edificio ocupa una parcela fuertemente inclinada hacia el norte, inclinación que permite el acceso peatonal a la clínica, por la fachada principal, desde una de las avenidas perimetrales; y el vehicular, por la fachada posterior, en donde, aprovechando el desnivel del terreno, se han organizado las cinco plantas del aparcamiento. Las dos funciones principales —clínicas y aparcamiento— se hallan convenientemente separadas, estableciéndose el enlace entre los distintos niveles mediante ascensores que relacionan las clínicas, el centro médico, los aparcamientos y las calles exteriores. A su vez, el área de las clínicas está servida por un grupo central de ascensores. El espacio interior reservado a las clínicas es altamente flexible, con el fin de posibilitar futuras modificaciones. Las salas de espera para los pacientes se localizan en el perímetro acristalado, dominando un amplio panorama de la bahía de San Francisco y de las zonas circundantes. La construcción se ha realizado en su totalidad de hormigón, con estructura calculada para la eventual incorporación de dos nuevas plantas.

Reid, John Lyon; Tarics, Alexander G.

1976-01-01

254

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

Scientific Electronic Library Online (English)

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

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

2010-06-01

255

Mathematical and numerical study of nonlinear hyperbolic equations: model coupling and nonclassical shocks; Etude mathematique et numerique d'equations hyperboliques non-lineaires: couplage de modeles et chocs non classiques  

Energy Technology Data Exchange (ETDEWEB)

This thesis concerns the mathematical and numerical study of nonlinear hyperbolic partial differential equations. A first part deals with an emergent problematic: the coupling of hyperbolic equations. The pursued applications are linked with the mathematical coupling of computing platforms, dedicated to an adaptative simulation of multi-scale phenomena. We propose and analyze a new coupling formalism based on extended PDE systems avoiding the geometric treatment of the interfaces. In addition, it allows to formulate the problem in a multidimensional setting, with possible covering of the coupled models. This formalism allows in particular to equip the coupling procedure with viscous regularization mechanisms, useful in the selection of natural discontinuous solutions. We analyze existence and uniqueness in the framework of a parabolic regularization a la Dafermos. Existence of a solution holds true under very general conditions but failure of uniqueness may naturally arise as soon as resonance occurs at the interfaces. Next, we highlight that our extended PDE framework gives rise to another regularization strategy based on thick interfaces. In this setting, we prove existence and uniqueness of the solutions of the Cauchy problem for initial data in L{sup {infinity}}. The main tool consists in the derivation of a flexible and robust finite volume method for general triangulation which is analyzed in the setting of entropy measure-valued solutions by DiPerna. The second part is devoted to the definition of a finite volume scheme for the computing of nonclassical solutions of a scalar conservation law based on a kinetic relation. This scheme offers the feature to be stricto sensu conservative, in opposition to a Glimm approach that is only statistically conservative. The validity of our approach is illustrated through numerical examples. (author)

Boutin, B

2009-11-15

256

What can we learn from combined SAXS and SANS measurements of the same sample containing surfactants?  

International Nuclear Information System (INIS)

[en] We review the information gained when studying the same sample containing surfactants by SANS and SAXS. Specific information can be obtained if intensities I(q) are determined and used on absolute scale as well as over a large q-window, thus extending to the > asymptotic range. Comparing SAXS and SANS peak positions (when present) allows unambiguous identification of structure factors separated from underlying form factors. Absolute scale refers to scattering cross-section while resolution relates to the qmax/qmin ratio. Taking into account 'external' knowledge of molecular volumes in constrained fitting from explicit models gives better results on aggregation numbers as well as on interfacial thickness than considering only Patterson functions. We assemble in this review results on adsorption isotherms on surfactant films as well as equations of state, quantifying colloidal interactions. Identification of the topological origin of swelling behaviour are made possible by using combined SAXS and SANS on the largest possible q-range. Best results using this general methodology up to now were obtained by considering data separated from background up to qmax= 0.6 A-1 - 0.8 A-1.

2010-10-01

257

An Integrated Study of the Grayburg/San Andres Reservoir Foster and South Cowden fields,  

Energy Technology Data Exchange (ETDEWEB)

GEOPHYSICAL OBJECTIVES: The goals of work done this quarter were to (1) refine the maps of seismic-derived porosity for the upper Grayburg for reapplication to the production model, (2) determine rock fabric and porosity patterns for the lower Grayburg and the upper San Andres, (3) relate any seismic-derived porosity characteristics, particularly seismic waveform attributes, to the historical production of oil allocated to lower Grayburg and San Andres zones, and (4) to test other geologic attributes for possible inter-relationships. GEOLOGIC OBJECTIVES: Continue the integrated geological/geophysical effort to develop a usable seismic velocity/log porosity transform for each Grayburg producing interval. The lower Grayburg and San Andres core were revisited to glean lithology and porosity information for the seismic inversion model. Update recent production and injection for each well in the study area. Add new production and injection wells to spreadsheet. Continue evaluation of effectiveness of recent completions, plug backs and injector conversions by monitoring oil production and produced water composition. ENGINEERING OBJECTIVES: To build the most accurate reservoir picture by continued integration of all data types available and utilize that model to optimize oil production. Monitoring and testing of new and worked-over wells continues to test the early production models. Methods to improve water quality are being evaluated using normal field management procedures.

NONE

1997-12-31

258

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

International Nuclear Information System (INIS)

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

1992-01-01

259

Fray Francisco de San Juan, a spanish missionary in Bahia in 1624  

Directory of Open Access Journals (Sweden)

Full Text Available The present article discloses the existence of an unpublished manuscript on the netherlandish invasion the Bahia in 1624. The author of the manuscript is a Spanish missionary called Fray Francisco de San Juan, who presents the best relation of the first months of the war, disclosing unknown details of the resistance against the invaders until the death of the Bishop D. Marcos Teixeira.El presente artículo divulga la existencia de un manuscrito inédito sobre la invasión neerlandesa en la Bahia en 1624. Su autor es el misionario español Fray Francisco de San Juan, que presenta la mejor relación de los primeros meses de la guerra, divulgando los detalles desconocidos de la resistencia contra los invasores hasta la muerte del Obispo D. Marcos Teixeira. [pt] O presente artigo divulga a existência de um manuscrito inédito sobre a invasão neerlandesa na Bahia em 1624. Seu autor é o missionário espanhol Frei Francisco de San Juan, que apresenta a melhor relação dos primeros meses da guerra, divulgando os detalhes desconhecidos da resistência contra os invasores até a morte do bispo D. Marcos Teixeira.

Iglesias Magalhães, Pablo Antonio

2011-01-01

260

Petrographic and geochemical aspects of metamorphic rocks of the sector Barranco de Loba (Serrania de San Lucas)  

International Nuclear Information System (INIS)

The metamorphic rocks that outcrop in the San Lucas foothills (in the area covered by the map identified as number 64), are grouped in two stratigraphic units: The so-called San Lucas Gneiss Formation and the Pinillos Metamorphic Unit (informal stratigraphic denomination). This latter unit is composed by The Armenia Schists and Tapoa Phyllites. The San Lucas Gneiss Formation, comprise quartz-feldspar gneisses (quartz-feldspar gneisses with biotite, quartz-feldspar gneisses with hornblende) and metamorphic rocks (hornblende gneiss, granulites and metagabbros). The Armenia Schists is composed by pelite schists; such as micaceous schists; micaceous schists with andalusite; and calco-silicate schists, quartz rich and with variable amounts of minerals from epidote, hornblende and actinolite groups. The Tapoa Phyllite Rocks are composed by quartz and sericite with altered opaque minerals. The San Lucas Gneiss Formation Metamorphism is regional and reaches the high anfibolite and pyroxene granulites facies. The 1.124Ma ± 22 zircon U-Pb age, indicates a Mesoproterozoic tectonothermal event, related to the Grenville Orogeny that took place during the Rodinia super continent consolidation. The Pinillos Metamorphic Rocks Unit is Early Paleozoic in age, according to the field relations.

2009-01-01

 
 
 
 
261

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

Scientific Electronic Library Online (English)

Full Text Available Abstract in spanish Pteridophytes that indicate environmental alteration in the temperate forest of San Jerónimo Amanalco, Texcoco, México. Pteridophytes that indicate environmental alteration in the San Jerónimo Amanalco temperate forest, Texcoco, Mexico. The patterns of distribution of 26 pteridophyte species were studied as possible indicators of environmental alteration in the temperate forest of San Jerónimo Amanalco, Texcoco, State of Mexico. The presence and abundance of the pteri (more) doflora was studied in relation to edaphic, topographic and vegetation variables in 100 sampling locations within an area of 494 hectares. The relationship between these variables was studied using Canonical Correspondence Analysis. Five landscapes were recognized in the study zone according to the degree of deterioration: severe erosion, erosion, mountain with moderate reversible deterioration, mountain with no evident deterioration, and canyon with no evident deterioration. Cheilanthes bonariensis and Pellaea ternifolia are indicators of environmental degradation. The taxa that only grow in landscapes without apparent alteration are Adiantum andicola, Adiantum poiretii, Argyrochosma incana, Asplenium blepharophorum, Dryopteris pseudo filix-mas, Equisetum hyemale and Pteris cretica. Rev. Biol. Trop. 56 (2): 641-656. Epub 2008 June 30. Se estudiaron los patrones de distribución de 26 especies de pteridofitas como posibles indicadoras de alteración ambiental en los bosques templados de San Jerónimo Amanalco, Texcoco, Estado de México. La presencia y abundancia de la pteridoflora se relacionó con variables edáficas, topográficas y de vegetación en 100 sitios de muestreo en un área de 494 ha. Con base en el Análisis Canónico de Correspondencia se pudo explorar la relación entre variables. Se determinaron cinco paisajes en el área de estudio con base al grado de deterioro: erosión severa, erosión, montaña con deterioro moderado reversible, montaña sin deterioro aparente y cañada sin deterioro aparente. Cheilanthes bonariensis y Pellaea ternifolia son indicadores de deterioro ambiental. Los táxones que únicamente crecen en paisajes sin alteración aparente son: Adiantum andicola, Adiantum poiretii, Argyrochosma incana, Asplenium blepharophorum, Dryopteris pseudo filix-mas, Equisetum hyemale y Pteris cretica

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

2008-06-01

262

Conventional pulverized coal and fluidized bed combustion testing of San Miguel lignite  

Energy Technology Data Exchange (ETDEWEB)

The information generated at GFETC can be summarized in the following way: (1) The ash fouling furnace is an empirical tool which provides good information on relative fouling potential of various fuels. In the case of San Miguel lignite, tests suggest a severe fouling problem if conventional boiler designs are employed. (2) No effect in either deposition rate or deposit strength was seen when MgO and CaCO/sub 3/ were used as additives. For these tests a single addition rate was utilized at two different injection points in the system. (3) Deposits from the combustion of San Miguel lignite are very different from those observed when burning a Northern Great Plains lignite, primarily because of the building of deposits from the refractory wall. (4) No bed agglomeration was noted under the varied run conditions used in AFBC testing of this lignite fuel. (5) The AFBC NO/sub chi/ level emitted in the flue gas were always less than the NSPS limit of 0.6 lbs NO/sub 2//10/sup 6/ Btu. (6) Utilization of inherent alkali was less than that observed for North Dakota lignites. It was possible to meet NSPS standards of 90% sulfur capture using limestone addition. Use of lower grade fuels such as the lignite from the San Miguel mine is inevitable if we are to meet the expanding needs for energy in the United States today. To make use of these different fuels extensive testing on laboratory and pilot scales will be beneficial in avoiding major problems due to the different characteristics these materials possess. The present successful operation of a full scale boiler using the San Miguel lignite is a good example of the value pilot scale studies can have on the road to successful operation.

Jones, M.L.; Goblirsch, G.M.

1982-01-01

263

Melting of San Carlos olivine in the presence of carbon at 6-12 GPa  

CERN Document Server

Experiments at 6-12 GPa showed that San Carlos olivine surrounded by carbon melts incongruently at 1400 C and higher temperatures, producing olivine with lower Fe contents, pyroxene, carbide, and carbonate melt. The relatively low melting temperature of 1400 C, independent of pressure, is consistent with carbonate melting. The new evidence for the reduced stability of olivine at high temperatures in the presence of carbonate melts is consistent with geophysical observations, and results in a substantially improved agreement between the experimentally determined phase relations and the observed seismic velocity structure of the upper mantle.

Garai, J; Garai, Jozsef; Gasparik, Tibor

2003-01-01

264

Some factors regulating the striped bass population in the Sacramento--San Joaquin Estuary, California  

International Nuclear Information System (INIS)

[en] The abundance of young and adult striped bass (Morone saxatilis) in the Sacramento--San Joaquin Estuary is related to the magnitudes of water diversions and of water flows in the estuary. Principal variations in survival occur during the first two months of life. Density-independent mortality caused by the loss of young bass in water diversions is a major factor regulating population size. Population size also is directly related to flow rates, which serve to control the transport of young bass to suitable nursery areas, which in turn influence survival through factors such as food availability

1977-05-02

265

78 FR 13890 - Notice of Intent To Repatriate Cultural Items: San Francisco State University NAGPRA Program, San...  

Science.gov (United States)

...2200-1100-665] Notice of Intent To Repatriate Cultural Items: San Francisco State University...Indian tribe, has determined that the cultural items meet the definition of sacred objects and objects of cultural patrimony and repatriation to the...

2013-03-01

266

Healthcare Inspection: Management of Emergency Calls at Primary Care Call Center VA San Diego Healthcare System, San Diego, California.  

Science.gov (United States)

The VA Office of Inspector General Office of Healthcare Inspections conducted an inspection to determine the validity of allegations regarding the management of emergency calls at the Primary Care Call Center (PCCC), VA San Diego Healthcare System (the sy...

2011-01-01

267

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

Directory of Open Access Journals (Sweden)

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

Paula Andrea Martínez Chaves; Alexander Betancourt Mendieta; Miguel Nicolás Caretta; Miguel Aguilar Robledo

2010-01-01

268

Mercury in San Francisco Bay forage fish  

International Nuclear Information System (INIS)

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

2010-01-01

269

Probability of San Francisco quake increased  

Science.gov (United States)

The probability that a large earthquake (magnitude 7.0 or greater) will occur in the San Francisco Bay area in the next 30 years is 67%, according to a recent report by the U.S. Geological Survey. This is a substantial increase from the 50% probability estimated in a similar report released by the USGS in 1988.The new report also says that scientists estimate the probability of a M-7.0 or larger quake in the Bay area in the next 20 years is 50%, compared to 30% from the 1988 report. For the next 10 years, probability is 33%, compared with 20% in the 1988 report. The new probability estimates for the nine-county Bay area are the result of a 6-month study by the California Working Group on Earthquake Probabilities. The group consists of a 12-person panel of earthquake specialists from the USGS, the University of California, the California Institute of Technology, the University of Southern California, Stanford University, the Lamont-Doherty Geologic Observatory at Columbia University, and the Pacific Gas and Electric Company.

270

SANS Study of Cellulose Extracted from Switchgrass  

Energy Technology Data Exchange (ETDEWEB)

AbstractLignocellulosic biomass, an abundant renewable natural resource, has the potential to play a major role in generation of renewable biofuels through its conversion to bio-ethanol. Unfortunately, it is a complex biological composite material that shows significant recalcitrance making it a cost-ineffective feedstock for bioethanol production. Small-angle neutron scattering (SANS) was employed to probe the multi-scale structure of cellulosic materials. Cellulose was extracted from milled native switchgrass and switchgrass that had undergone the dilute acid pretreatment method to disrupt the lignocellulose structure. The high-Q structural feature (Q > 0.07 -1) can be assigned to cellulose fibrils based on comparison with the switchgrass purified by solvent extraction of native and dilute acid pretreated and a commercial preparation of microcrystalline cellulose. Dilute acid pretreatment results in an increase in the smallest structural size, a decrease in the interconnectivity of the fibrils; and no change in the smooth domain boundaries at length scales larger than 1000 .

Pingali, Sai Venkatesh [ORNL; Urban, Volker S [ORNL; Heller, William T [ORNL; McGaughey, Joseph [ORNL; O' Neill, Hugh Michael [ORNL; Foston, Marcus B [ORNL; Myles, Dean A A [ORNL; Ragauskas, Arthur J [ORNL; Evans, Barbara R [ORNL

2010-01-01

271

Anatomía vegetal en San Alberto Magno  

Directory of Open Access Journals (Sweden)

Full Text Available Since T. A. Sprague wrote his outstanding essays many years ago on the meaning of botanical terms used by Plinius, Isidorus, Albertus and Ruellius, no one else had resumed this task, which is essential for the history of botany. Though Albertus explained vegetal structure in terms of the function it fulfils, the methodology used here ignores Physiology and concentrates on Morphology. After discussing the composition of De Vegetabilibus, we deal with organs using the order and division established by Albertus: succus, nodus, radix. venae, stipes, ramus, cortex, flos, folium, fructus, and so on.Desde los ya lejanos, y meritísimos, trabajos de T. A. Sprague sobre el significado de los términos botánicos empleados por Plinio, Isidoro, Alberto y Ruellius, nadie había reemprendido tan necesaria tarea para la historia de la botánica. Aunque la razón de una estructura vegetal se explica, en San Alberto, por la función que cumple, aquí prescindimos metodológicamente de la fisiología para ceñirnos a la morfología. Tras exponer la composición del De Vegetabilibus, abordamos los distintos órganos de la planta según el orden y la división trazados por él: succus, nodus, radix, venae, stipes, ramus, cortex, flos, fructus, etcétera.

Valderas, José María

1988-01-01

272

Radiological survey of San Diego Bay  

International Nuclear Information System (INIS)

A radiological survey of three sites in San Diego Bay provided the basis for the following conclusions: 1. Small quantities of Co-60 (0.02-0.05 pCi/g) are present in the bottom sediments in some areas of the harbor at the Submarine Base. Most, if not all, of the Co-60 contamination present probably originated prior to the earlier 1967 survey that reported Co-60 levels as much as 300 times larger than those observed in this study. The highest Co-60 concentration measured is now less than one percent of the normal background radioactivity in harbor sediment samples. 2. No tritium or gamma-ray emitters, other than trace amounts of those occurring naturally, were detected in surface water from the dock areas or in nearby drinking water supplies. 3. Only radionuclides of natural origin and trace amounts of Cs-137 from fallout of previous nuclear weapons tests were detected in samples of kelp, algae, and fish taken from the harbor at the Submarine Base. 4. Gamma-ray surveys of the harbors near the docking areas and along shorelines and beaches near the shipyards failed to detect any exposure rates above background. 3 refs., 4 figs., 3 tabs

1989-01-01

273

Teaching Geology at San Quentin State Prison  

Science.gov (United States)

The students enrolled in our Geology 215 class are about as on-traditional as it gets. They range in age from about 20 - 50 years old, they are all male, all from under-represented ethnic groups, and they are all serving time in one of the country's most notorious prisons. We teach in a degree-granting community college program inside California's San Quentin State Prison. The program is run entirely by volunteers, and students who participate in educational programs like ours are about 5 times less likely to return to prison than the general inmate population in California. The prison population of California is ethnically diverse, though minorities are present in higher proportion than in the general population. Last semester, our geology class happened to be composed entirely of minorities even though the college program serves the full spectrum of the prison population. While some trends in geoscience education encourage the use of technology in the classroom, security restrictions prevent us from using even some of the simplest visual aids. Faced with these challenges, we have developed an inquiry-based syllabus for an introductory Geology class at the community college level. We find that kinaesthetic learning activities such as urban geologic mapping and acting out plate tectonic motions from ridge to trench (complete with magnetic pole polarity shifts) are not only possible in restricted learning environments, but they promote student learning in unexpected ways.

D'Alessio, M. A.; Pehl, J.; Ferrier, K. L.; Pehl, C. W.

2004-12-01

274

Indoor Air Quality Assessment of the San Francisco Federal Building  

Energy Technology Data Exchange (ETDEWEB)

An assessment of the indoor air quality (IAQ) of the San Francisco Federal Building (SFFB) was conducted on May 12 and 14, 2009 at the request of the General Services Administration (GSA). The purpose of the assessment was for a general screening of IAQ parameters typically indicative of well functioning building systems. One naturally ventilated space and one mechanically ventilated space were studied. In both zones, the levels of indoor air contaminants, including CO2, CO, particulate matter, volatile organic compounds, and aldehydes, were low, relative to reference exposure levels and air quality standards for comparable office buildings. We found slightly elevated levels of volatile organic compounds (VOCs) including two compounds often found in"green" cleaning products. In addition, we found two industrial solvents at levels higher than typically seen in office buildings, but the levels were not sufficient to be of a health concern. The ventilation rates in the two study spaces were high by any standard. Ventilation rates in the building should be further investigated and adjusted to be in line with the building design. Based on our measurements, we conclude that the IAQ is satisfactory in the zone we tested, but IAQ may need to be re-checked after the ventilation rates have been lowered.

Apte, Michael; Bennett, Deborah H.; Faulkner, David; Maddalena, Randy L.; Russell, Marion L.; Spears, Michael; Sullivan, Douglas P; Trout, Amber L.

2008-07-01

275

Potential of BLM lands in western Fresno and eastern San Benito and Monterey Counties, California, as critical habitats for the endangered San Joaquin kit fox, Vulpes macrotis mutica, and blunt-nosed leopard lizard, Crotaphytus silus  

Energy Technology Data Exchange (ETDEWEB)

The major objectives were to determine the presence and relative density of the San Joaquin kit fox and blunt-nosed leopard lizard on BLM lands in western Fresno and eastern San Benito and Monterey counties, California, and to determine the potential of these lands as critical habitat for these endangered species. A total of 6220 acres in the Ciervo Hills and 4000 acres near Coalinga were surveyed for both San Joaquin kit fox and blunt-nosed leopard lizards; 810 acres in the Griswold Hills were surveyed for kit fox only; and 2000 acres in the Tumey Hills were surveyed for blunt-nosed leopard lizards only. Eight line transects per mile were used to gather information on: (1) kit fox dens, scats, tracks, and remains of their prey; (2) presence of blunt-nosed leopard lizards; (3) vegetation associations; (4) density of rodent burrows on lands surveyed for leopard lizards; (5) topography; (6) evidence of human activities; (7) presence of other wildlife species; and (8) any additional scientific data related to endangered species. Night spotlight surveys were conducted in the Ciervo Hills, Griswold Hills, and on lands adjacent to Coalinga and San Ardo to document presence of kit fox, their potential prey, and other vertebrates. Of BLM land surveyed in 1981, the Coalinga Land Unit had the highest potential as critical habitat for the San Joaquin kit fox, the Ciervo Hills Land Unit was ranked second,and parcels in the Griswold Hills received the lowest score given since inventories were initiated in 1979. Public lands in the Salinas Valley were too steep to serve as habitat for kit fox. Over 70% of the parcels had only fair to no potential as critical habitat for the blunt-nosed leopard lizard. BLM lands near Coalinga and those in the central plateau of the Tumey Hills visually appeared to have some potential as habitat for the species.

O' Farrell, T.P.; McCue, P.; Kato, T.

1981-11-01

276

Geothermal studies in the San Juan Basin and the Four Corners area of the Colorado Plateau. 2. Steady-state models of the thermal source of the San Juan volcanic field  

Energy Technology Data Exchange (ETDEWEB)

The increase of heat flow approaching the San Juan volcanic field depicts a smooth profile having a relatively large half width, perhaps 50-100 km. One may suggest thermal sources creating the observed anomaly at equivalent depths under, or in proximity to, the San Juan volcanic field. Although the cause of the increased heat flow approaching the San Juan field may be in part associated with more regional Southern Rocky Mountain tectonics; geologic, heat-flow, and seismic data support the idea of a separate thermal source associated with the San Juan volcanic field. It can be shown that cooling and solidification of very deep magma bodies (to 75 km) provide less heat than required by the observed anomaly. Replenishment of the thermal source causing the heat-flow anomaly is postulated. This replenishment is approximated in a limiting case by developing finite-difference steady-state models. The best models are consistent with a plume which rises from depths of at least 100 km to depths as shallow as 35 km, whose edge is about 10 km south of Durango. (4 figs., 18 refs., 4 tables).

Reiter, M.; Clarkson, G.

1983-01-20

277

A review of circulation and mixing studies of San Francisco Bay, California  

Science.gov (United States)

A description of the major characteristics and remaining unknowns of circulation and mixing in San Francisco Bay has been constructed from a review of published studies. From a broad perspective San Francisco Bay is an ocean-river mixing zone with a seaward flow equal to the sum of the river inflows less evaporation. Understanding of circulation and mixing within the bay requires quantification of freshwater inflows and ocean-bay exchanges, characterization of source-water variations, and separation of the within-bay components of circulation and mixing processes. Description of net circulation and mixing over a few days to a few months illustrates best the interactions of major components. Quantification of tidal circulation and mixing is also necessary because net circulation and mixing contain a large tide-induced component, and because tidal variations are dominant in measurements of stage, currents, and salinity. The discharge of the Sacramento-San Joaquin Delta into Suisun Bay is approximately 90 percent of the freshwater inflow to San Francisco Bay. Annual delta discharge is characterized by a winter season of high runoff and a summer season of low runoff. For the period 1956 to 1985 the mean of monthly discharges exceeded 1,000 cubic meters per second (35,000 cubic feet per second) for the months of December through April, whereas for July through October, it was less than 400 cubic meters per second (14,000 cubic feet per second). The months of November, May, and June commonly were transition months between these seasons. Large year-to-year deviations from this annual pattern have occurred frequently. Much less is known about the ocean-bay exchange process. Net exchanges depend on net seaward flow in the bay, tidal amplitude, and longshore coastal currents, but exchanges have not yet been measured successfully. Source-water variations are ignored by limiting discussion of mixing to salinity. The bay is composed of a northern reach, which is strongly influenced by delta discharge, and South Bay, a tributary estuary which responds to conditions in Central Bay. In the northern reach net circulation is characterized by the river-induced seaward, flow and a resulting gravitational circulation in the channels, and by a tide- and wind-induced net horizontal circulation. A surface layer of relatively fresh water in Central Bay generated by high delta discharges can induce gravitational circulation in South Bay. During low delta discharges South Bay has nearly the same salinity as Central Bay and is characterized by tide- and wind-induced net horizontal circulation. Several factors control the patterns of circulation and mixing in San Francisco Bay. Viewing circulation and mixing over different time-periods and at different geographic scales causes the influences of different factors to be emphasized. The exchange between the bay and coastal ocean and freshwater inflows determine the year-to-year behavior of San Francisco Bay as a freshwater-saltwater mixing zone. Within the bay, exchanges between the embayments control variations over a season. Circulation and mixing patterns within the embayments and the magnitude of river-induced seaward flow influence the between-bay exchanges. The within-bay patterns are in turn determined by tides, winds, and freshwater inflows. Because freshwater inflow is the only factor that can be managed, a major study focus is estimation of inflow-related effects. Most questions relate to the patterns of freshwater inflow necessary to protect valuable resources whose welfare is dependent on conditions in the bay. Among the important questions being addressed are: --What quantity of freshwater inflow is necessary to prevent salt intrusion into the Sacramento-San Joaquin Delta, and what salinity distributions in the bay would result from various inflow patterns? --What quantity of freshwater inflow is sufficient to flush pollutants through the bay? Knowledge of circul

Smith, Lawrence H.

1987-01-01

278

Observing the San Andreas Fault at Depth  

Science.gov (United States)

Extending 4 km into the Earth along a diagonal path that crosses the divide between Salinian basement accreted to the Pacific Plate and Cretaceous sediments of North America, the main hole at the San Andreas Fault Observatory at Depth (SAFOD) was designed to provide a portal into the inner workings of a major plate boundary fault. The successful drilling and casing of the main hole in the summer of 2005 to a total vertical depth of 3.1 km make it possible to conduct spatially extensive and long-duration observations of active tectonic processes within the actively deforming core of the San Andreas Fault. In brief, the observatory consists of retrievable seismic, deformation and environmental sensors deployed inside the casing in both the main hole (maximum temperature 135 C) and the collocated pilot hole (1.1 km depth), and a fiber optic strainmeter installed behind casing in the main hole. By using retrievable systems deployed on either wire line or rigid tubing, each hole can be used for a wide range of scientific purposes, with instrumentation that takes maximum advantage of advances in sensor technology. To meet the scientific and technical challenges of building the observatory, borehole instrumentation systems developed for use in the petroleum industry and by the academic community in other deep research boreholes have been deployed in the SAFOD pilot hole and main hole over the past year. These systems included 15Hz omni-directional and 4.5 Hz gimbaled seismometers, micro-electro-mechanical accelerometers, tiltmeters, sigma-delta digitizers, and a fiber optic interferometeric strainmeter. A 1200-m-long, 3-component 80-level clamped seismic array was also operated in the main hole for 2 weeks of recording in May of 2005, collecting continuous seismic data at 4000 sps. Some of the observational highlights include capturing one of the M 2 SAFOD target repeating earthquakes in the near-field at a distance of 420 m, with accelerations of up to 200 cm/s and a static displacement of a few microns. Numerous other local events were observed over the summer by the tilt and seismic instruments in the pilot hole, some of which produced strain offsets of several nanostrain on the fiber optic strainmeter. We were fortunate to observe several episodes of non-volcanic tremor on the 80-level seismic array in May, 2005. These spatially unaliased recordings of the tremor wavefield reveal that the complex tremor time series is comprised of up-and down-going shear waves that produce a spatially stationary interference pattern over time scales of 10s of seconds. All data collected at SAFOD as part of the EarthScope project are open and freely available to all. The Northern California Earthquake Data Center at U.C. Berkeley is the principal data repository for SAFOD. The more than 2 TB of 80-level array data are also available at the IRIS DMC as an assembled data collection.

Ellsworth, W.; Hickman, S.; Zoback, M.; Davis, E.; Gee, L.; Huggins, R.; Krug, R.; Lippus, C.; Malin, P.; Neuhauser, D.; Paulsson, B.; Shalev, E.; Vajapeyam, B.; Weiland, C.; Zumberge, M.

2005-12-01

279

Déficit hídrico en San Antonio Oeste, Argentina  

Directory of Open Access Journals (Sweden)

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

Sibila A. Genchi; María E. Carbone; María C. Piccolo; Gerardo M.E. Perillo

2010-01-01

280

High-resolution interseismic velocity data along the San Andreas Fault from GPS and InSAR  

Science.gov (United States)

We compared four interseismic velocity models of the San Andreas Fault based on GPS observations. The standard deviations of the predicted secular velocity from the four models are larger north of the San Francisco Bay area, near the creeping segment in Central California, and along the San Jacinto Fault and the East California Shear Zone in Southern California. A coherence spectrum analysis of the secular velocity fields indicates relatively high correlation among the four models at longer wavelengths (>15-40 km), with lower correlation at shorter wavelengths. To improve the short-wavelength accuracy of the interseismic velocity model, we integrated interferometric synthetic aperture radar (InSAR) observations, initially from Advanced Land Observing Satellite (ALOS) ascending data (spanning from the middle of 2006 to the end of 2010, totaling more than 1100 interferograms), with GPS observations using a Sum/Remove/Filter/Restore approach. The final InSAR line of sight data match the point GPS observations with a mean absolute deviation of 1.5 mm/yr. We systematically evaluated the fault creep rates along major faults of the San Andreas Fault and compared them with creepmeters and alignment array data compiled in Uniform California Earthquake Rupture Forecast, Version 2 (UCERF2). Moreover, this InSAR line of sight dataset can constrain rapid velocity gradients near the faults, which are critical for understanding the along-strike variations in stress accumulation rate and associated earthquake hazard.

Tong, X.; Sandwell, D. T.; Smith-Konter, B.

2013-01-01

 
 
 
 
281

78 FR 34125 - Notice of Inventory Completion: U.S. Department of Agriculture, Forest Service, San Juan National...  

Science.gov (United States)

...Department of Agriculture, Forest Service, San Juan National Forest, Durango, CO AGENCY...Agriculture (USDA), Forest Service, San Juan National Forest has completed an inventory...should submit a written request to the San Juan National Forest. If no additional...

2013-06-06

282

78 FR 50104 - Notice of Inventory Completion: U.S. Department of the Interior, National Park Service, San Juan...  

Science.gov (United States)

...Interior, National Park Service, San Juan Island National Historical Park, Friday...Interior, National Park Service, San Juan Island National Historical Park has corrected...should submit a written request to San Juan Island National Historical Park. If...

2013-08-16

283

78 FR 38359 - Approval of Record of Decision for Relocation of Cattle Point Road, San Juan Island National...  

Science.gov (United States)

...Decision for Relocation of Cattle Point Road, San Juan Island National Historical Park, San Juan County, Washington AGENCY: National Park Service...the relocation of the Cattle Point Road at San Juan Island National Historical Park. The...

2013-06-26

284

76 FR 4371 - Notice of Intent to Prepare an Environmental Impact Statement for the Proposed San Juan Basin...  

Science.gov (United States)

...Environmental Impact Statement for the Proposed San Juan Basin Energy Connect Project, San Juan County, New Mexico, and La Plata County, Colorado...Environmental Impact Statement (EIS) on the proposed San Juan Energy Connect Project, and by this notice...

2011-01-25

285

78 FR 34128 - Notice of Inventory Completion: U.S. Department of Agriculture, U.S. Forest Service, San Juan...  

Science.gov (United States)

...Agriculture, U.S. Forest Service, San Juan National Forest, Durango, CO AGENCY...Agriculture (USDA), Forest Service, San Juan National Forest has completed an inventory...should submit a written request to San Juan National Forest. If no additional...

2013-06-06

286

75 FR 24586 - Order Finding That the San Juan Financial Basis Contract Traded on the IntercontinentalExchange...  

Science.gov (United States)

...TRADING COMMISSION Order Finding That the San Juan Financial Basis Contract Traded on the...undertake a determination whether the San Juan Financial Basis (``SNJ'') contract...IV. Findings and Conclusions The San Juan Financial Basis (SNJ) Contract and...

2010-05-05

287

77 FR 36040 - Watco Holdings, Inc.-Continuance in Control Exemption-San Antonio Central Railroad, L.L.C.  

Science.gov (United States)

...Continuance in Control Exemption--San Antonio Central Railroad, L.L.C...Watco to continue in control of San Antonio Central Railroad, L.L.C...verified notice of exemption in San Antonio Central Railroad,...

2012-06-15

288

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

Scientific Electronic Library Online (English)

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

Ferracutti, Gabriela; Kostadinoff, José; Bjerg, Ernesto

2009-06-01

289

Investments in the future of behavioral science: the University of California, San Francisco, Visiting Professors Program.  

UK PubMed Central (United Kingdom)

A need exists for the promotion of diversity in the scientific workforce to better address health disparities. In response to this need, funding agencies and institutions have developed programs to encourage ethnic-minority and early-career scientists to pursue research careers. We describe one such program, the University of California, San Francisco, Visiting Professors Program, which trains scientists to conduct HIV/AIDS-related research in communities of color. The program provides training and mentoring in navigating grant processes and developing strong research proposals and provides crucial networking opportunities. Although this program is focused on community-based HIV prevention, its principles and methods are widely applicable.

Dolcini MM; Grinstead Reznick OA; Marín BV

2009-04-01

290

Aquifer-protection considerations of coalbed methane methane development in the San Juan basin  

International Nuclear Information System (INIS)

Coalbed methane development in the San Juan basin has caused concern about several environmentally related health, safety, and remediation issues. This paper presents the findings of four groundwater-sampling programs and aquifer-protection work on producing wells and deep cathodic-protection groundbeds. The study concludes that Fruitland coal gas can migrate vertically behind uncemented wellbores that offset Fruitland coal gas wells, that remedial cementing of offsetting producing wells is feasible but costly, and that methane detected in domestic water wells near Fruitland coal development cannot be correlated directly to Fruitland coal gas development

1993-01-01

291

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

Science.gov (United States)

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

1980-05-01

292

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

Directory of Open Access Journals (Sweden)

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

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

2011-01-01

293

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

Scientific Electronic Library Online (English)

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

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

2011-12-01

294

San Juan gas line capacity due sharp jump  

Energy Technology Data Exchange (ETDEWEB)

This paper reports on gas pipeline capacity out of the San Juan basin in the Four Corners area that will increase by more than 1.3 bcfd in two construction projects approved by the Federal Energy Regulatory Commission. The projects will help solve operational problems and answer safety concerns arising because San Juan gathering systems upstream of pipeline bottlenecks were operating at or near maximum operating pressures. Without significant new pipeline capacity out of the San Juan basin, a capacity shortfall estimated at 500-600 MMcfd could have reached 800 MMcfd to 1 bcfd by next spring. FERC approved these projects at its last meeting before starting a 6 week recess ending Sept. 11.

1991-08-12

295

SANS facility at the PITESTI 14MW TRIGA reactor  

International Nuclear Information System (INIS)

[en] At the present time, an important not yet fully exploited potentiality is represented by the SANS instruments existent at lower power reactors and reactors in developing countries even if they are, generally, endowed with a simpler equipment and are characterized by the lack of infrastructure to maintain and repair high technology accessories. The application of SANS at lower power reactors and in developing countries nevertheless is possible in well selected topics where only a restricted Q range is required, when scattering power is expected to be sufficiently high or when the sample size can be increased at the expense of resolution. The need for the installation of a new SANS facility at the Triga Reactor of the Institute of Nuclear Researches in Pitesti, Romania become actual especially after the shutting down of the VVRS Reactor from Bucharest

2007-01-01

296

SMCRA bond release - the initial steps at San Juan mine  

Energy Technology Data Exchange (ETDEWEB)

San Juan Coal Company has submitted to the State of New Mexico's Mining and Minerals Division the final phase III bond release application for the approval and release of 241 acres of permitted lands at its San Juan Mine located in San Juan County, New Mexico. The SMCRA (Surface Mining Control and Reclamation Act) and New Mexico Surface Coal Mining Regulations mandate a minimum 10-year liability period following final reclamation, during which no additional treatments other than approved postmining land uses and approved interseedings may be applied to an area for which bond release is sought. Site-specific revegetation success standards must be met for two of the last four years of liability, beginning no sooner than year eight of the bonding period. Successful reclamation of the site was demonstrated by exceeding cover, production, shrub density, and diversity standards while supporting the primary postmining land use of livestock grazing. 11 refs., 1 fig., 8 tabs.

Estrada, O.; Clark, D. [BHP San Juan Coal Company, Waterflow, NM (United States)

2001-07-01

297

Deep bore hole instrumentation along San Francisco Bay Bridges  

Energy Technology Data Exchange (ETDEWEB)

The Bay Bridges down hole network consists of sensors in bore holes that are drilled 100 ft. into bedrock around and in the San Francisco Bay. Between 2 and 8 instruments have been spaced along the Dumbarton, San Mateo, Bay, and San Rafael bridges. The instruments will provide multiple use data that is important to geotechnical, structural engineering, and seismological studies. The holes are between 100 and 1000 ft deep and were drilled by Caltrans. There are twenty- one sensor packages at fifteen sites. Extensive financial support is being contributed by Caltrans, UCB, LBL, LLNL-LDRD, U.C. Campus/Laboratory Collaboration (CLC) program, and USGS. The down hole instrument package contains a three component HS-1 seismometer and three orthogonal Wilcox 73 1 accelerometers, and is capable of recording a micro g from local M = 1.0 earthquakes to 0.5 g strong ground motion form large Bay Area earthquakes.

Bakun, W.; Bowman, J.; Clymer, R.; Foxall, W.; Hipley, P.; Hollfelder, J.; Hutchings, L.; Jarpe, S.; Kasameyer, P.; McEvilly, T.; Mualchin, L.; Palmer, M.

1998-10-01

298

Neutron Optics Optimization for the SNS EQ-SANS Diffractometer  

Energy Technology Data Exchange (ETDEWEB)

The extended Q-range small angle neutron scattering (EQ-SANS) diffractometer at the Spallation Neutron Source has recently been completed. Initial commissioning has shown that it has achieved its high intensity, low background, and wide dynamic range design goals. One of the key components that enable these performances is its neutron optics, which are extensively optimized using analytical and Monte Carlo methods. The EQ-SANS optics consist of a curved multichannel beam bender and sections of straight neutron guides on both ends of the bender. The bender and the guide are made of float glass coated with supermirror multilayers. The function of the optics is to ensure low instrument background by avoiding the direct line of sight of the neutron moderator at downstream locations, while transporting thermal and cold neutrons to the sample with maximum efficiency. In this work, the optimization of the EQ-SANS optics is presented.

Zhao, Jinkui [ORNL

2011-01-01

299

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

Directory of Open Access Journals (Sweden)

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

Andrea Cecilia Hued; María de los Ángeles Bistoni

2001-01-01

300

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

Scientific Electronic Library Online (English)

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

Hued, Andrea Cecilia; Bistoni, María de los Ángeles

2001-11-01

 
 
 
 
301

78 FR 6833 - Final Environmental Impact Statement/Environmental Impact Report for the San Joaquin River...  

Science.gov (United States)

...benefit from the potential transfers are located in the counties of Stanislaus, San Joaquin, Merced, Madera, Fresno, San Benito, Santa Clara, Tulare, Kern, Kings, Contra Costa, Alameda, Monterey, and Santa Cruz counties. The wetland habitat...

2013-01-31

302

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

Science.gov (United States)

...Plan, San Joaquin Valley Unified Air Pollution Control District AGENCY: Environmental...approval of San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD) Rule 3170...of section 185 to the expected fees, pollution control project funding, and/or...

2012-08-20

303

77 FR 65305 - Approval of Air Quality Implementation Plans; California; San Joaquin Valley Unified Air...  

Science.gov (United States)

...California; San Joaquin Valley Unified Air Pollution Control District; Prevention of Significant...for the San Joaquin Valley Unified Air Pollution Control District (District) portion...List of Subjects in 40 CFR part 52 Air pollution control, Carbon monoxide,...

2012-10-26

304

78 FR 37130 - Revisions to the California State Implementation Plan, San Diego Air Pollution Control District  

Science.gov (United States)

...Implementation Plan, San Diego Air Pollution Control District AGENCY: Environmental...approve a revision to the San Diego Air Pollution Control District (SDAPCD) portion...52 Environmental protection, Air pollution control, Incorporation by...

2013-06-20

305

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

Science.gov (United States)

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

2012-11-05

306

75 FR 1716 - Revisions to the California State Implementation Plan, San Joaquin Valley Unified Air Pollution...  

Science.gov (United States)

...Plan, San Joaquin Valley Unified Air Pollution Control District AGENCY: Environmental...the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD...authority to regulate sources of air pollution. The fee provision of CAA...

2010-01-13

307

78 FR 46676 - Environmental Impact Statement; Los Angeles and San Bernardino Counties, California; Notice of...  

Science.gov (United States)

...Administration Environmental Impact Statement; Los Angeles and San Bernardino Counties, California...proposed High Desert Corridor project in Los Angeles and San Bernardino Counties, California...100 South Main Street, Mail Stop 16A, Los Angeles, CA 90012. SUPPLEMENTARY...

2013-08-01

308

Hypertension in the San Antonio Heart Study and the Mexico City Diabetes Study: sociocultural correlates.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

WE EXAMINED THE ASSOCIATION between sociocultural status (assimilation, modernization, and socioeconomic status) and blood pressure among people of Mexican origin living in San Antonio, Texas, and Mexico City. In San Antonio, higher levels of sociocultural status, especially education and structural...

Hazuda, H P

309

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

Science.gov (United States)

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

2011-06-24

310

Assessment of hydraulic restoration of San Pablo Marsh, California.  

Science.gov (United States)

Inter-tidal marshes are dynamic diverse ecosystems at the transition zone between terrestrial and ocean environments. Geomorphologically, inter-tidal salt marshes are vegetated land-forms at elevations slightly greater than mean tidal levels that have distributed channels formed under ebb (drainage) tidal flows that widen and deepen in the seaward direction. The drainage channels enable tidal flows to circulate sediments and nutrients through the marsh system during normal tidal events, while depositing sediments during storm or seismic events. This dynamic system encourages considerable biodiversity while simultaneously providing water quality enhancement features that service marsh terrestrial life and marine life in the estuary. Reservoir creation limiting sediment transport, anticipated large increases in sea levels as well as agricultural and urban development have resulted in significant loss of inter-tidal marshes and subsequent adverse impacts on waterfowl, infauna and fisheries. The complex and continuously changing marsh channel hydraulics and sedimentary processes have severely constrained quantitative modeling of these marsh systems such that restoration/creation efforts remain something of an empirical science and further assessments are needed. The purpose of this paper is to outline current understanding of salt marsh hydrodynamics, sediment accretion processes and subsequent response of marsh vegetation to set the stage for assessment of a marsh restoration effort along San Pablo Bay near San Francisco, California. Several kilometers of drainage channels were constructed in a 624 ha disturbed salt marsh to restore tidal circulation and vegetation so as to enhance habitat for threatened species (e.g. clapper rail, harvest mouse, delta smelt and potentially anadromous fish species). Two distinct drainage channel systems ('east' and 'west') were installed having similar channel dimensions common to salt marshes in the region, but having design bankfull tidal prism volumes differing by a factor of two. Following channel excavation, main channel tidal flows and sediment loads as well as marsh sediment accretion rates were monitored to assess the relative success of the excavation in restoring tidal circulation and vegetation (Salicornia spp.) to the marsh. Annual aerial surveys corroborated with ground-truthing indicated that marsh vegetation rapidly expanded, from 40 to 85% coverage several years following excavation. The 'east' channel intake was nearly completely silted in within three years. However, channel surveys and flow measurements indicated that the 'east' channel system tidal prism was only about 1200 m3, more than an order of magnitude less than that of the stable 'west' channel system. Marsh sediment accretion rates were on the order of 7-8 mm yr(-1), a rate common to the Pacific coast region that exceeds estimated sea level rise rates of approximately 2 mm yr(-1). East channel network siltation resulted in storm and spring tidal flood ponding such that marsh vegetation coverage decreased to 51% of the marsh area and related habitat expansion decreased. These results are considered in terms of the primary inter-tidal marsh factors affecting possible restoration/creation strategies. PMID:15473530

Grismer, Mark E; Kollar, J; Syder, J

2004-11-01

311

First experiences with large SAN storage and Linux  

Science.gov (United States)

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

van Wezel, Jos; Marten, Holger; Verstege, Bernhard; Jaeger, Axel

2004-11-01

312

First experiences with large SAN storage and Linux  

International Nuclear Information System (INIS)

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

2004-11-21

313

A SANS study of capillary condensation in porous media  

International Nuclear Information System (INIS)

[en] The authors use small angle neutron scattering (SANS) to study the microstructure of porous Vycor glass and the capillary condensation of fluids in the medium. Using a chord distribution model, they can predict the structure factor measured by SANS. Excellent agreement with the data is obtained. The fitted parameters characterize quantitatively the porous structure before and during the process of condensation, and are in good agreement with isotherm measurements. However, at the latest stages of the process, when all the pores are nearly filled, the model can no longer describe the system

1989-12-02

314

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

International Nuclear Information System (INIS)

[en] This paper is part of a regional study about Mesozoic magmatism, tectonics and sedimentation in Uruguay. As a result of the geological studies carried out in Sierra de San Miguel area (Rocha department), lithological descriptions, their stratigraphic relationships and their petrographic characterization are presented[es] Este trabajo se enmarca en un estudio regional sobre el magmatismo, tectonica y sedimentacion del Mesozoico uruguayo. Se presentan los resultados parciales obtenidos a partir del estudio geologico realizado en la Sierra de San Miguel (departamento de Rocha), que incluyen la identificacion de las litologias que conforman su estructura, las relaciones estratigraficas entre las diferentes unidades asi como la caracterizacion petrografica de las mismas

2004-01-01

315

Tecnología ósea del alero Las Tumanas (LT1), Valle Fértil, San Juan/ Bone technology of Las Tumanas rockshelter (LT1), Valle Fértil, San Juan  

Scientific Electronic Library Online (English)

Full Text Available Abstract in spanish Presentamos el conjunto de instrumentos óseos del alero Las Tumanas (LT1) -Valle Fértil, San Juan- que representan ocupaciones humanas de comunidades productoras de baja intensidad del Holoceno tardío. Los objetivos principales de esta contribución son determinar las actividades realizadas en el alero relacionadas con la construcción, uso y descarte de instrumentos óseos y discutir los alcances interpretativos en una escala macroregional. Determinamos las categoría (more) s taxonómicas y anatómicas de los soportes óseos y las relacionamos con la disponibilidad de los recursos faunísticos a partir del conjunto óseo registrado en el alero. También analizamos la distribución espacial de los instrumentos definiendo dos sectores de actividad relacionados con el uso y descarte. Finalmente postulamos una relación entre las características de la tecnología ósea con funciones relacionadas con la manipulación de materias blandas y actividades de punzar y coser. Abstract in english We introduce here the bone assemblage tools from Las Tumanas rockshelter -Valle Fertil, San Juanrepresenting human occupation of low level intensity production communities of late Holocene. The aims of this paper is to determine the rockshelter activities linked with construction, use and discarded of bone tool's and to discuss the interpretive scopes in a macro regional scale. We determine taxonomics and anatomical bone supports and relate them with availability of the f (more) aunal resources from the bone assemblage recorded in the site. Also we analyze the spatial distribution of the instruments defining two sectors of activity related to the use and discarded. Finally we postulate a relation between the characteristics of the bone technology with functions related to the manipulation of soft matters and activities to perforate and sewing.

Cahiza, Pablo; Aguilar, Juan Pablo; García Llorca, Jorge

2012-12-01

316

Pulse pressure, prehypertension, and mortality: the San Antonio heart study.  

UK PubMed Central (United Kingdom)

BACKGROUND: Prehypertension increases mortality risk. Pulse pressure is also associated with increased mortality. Nevertheless, the impact of pulse pressure on the relationship between prehypertension and mortality is not known in individuals who are free of diabetes and cardiovascular disease. METHODS: Cox regression analysis was used to examine mortality risk among 3,632 (97.0%) participants in the San Antonio Heart Study (age range, 25-64 years; mean follow-up, 15.2 years). Results were adjusted for age, sex, ethnicity, education, body mass index (BMI), smoking, and total cholesterol concentration. The Seventh Report of the Joint Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC 7) categories were used for blood pressure staging: normal, <120/80 mm Hg; prehypertension, 120-139/80-89 mm Hg. RESULTS: Prehypertension prevalence was 31.6% at baseline. There were 218 deaths during the follow-up period. Prehypertension-predicted mortality (all-cause, hazard ratio (HR) 1.49 (1.12-1.99); cardiovascular, HR 1.79 (1.07-3.02)). Relative to normal blood pressure plus pulse pressure in the lower tertile, prehypertension plus pulse pressure in the upper tertile was associated with increased mortality (all-cause, HR 2.14 (1.38-3.32); cardiovascular, HR 2.47 (1.13-5.39)); however, prehypertension plus pulse pressure in the lower tertile was not significantly associated with mortality (all-cause, HR 1.19 (0.52-2.67); cardiovascular, HR 0.43 (0.05-3.40)). CONCLUSIONS: Prehypertension increases mortality risk (all-cause and cardiovascular) in individuals who are free of diabetes and cardiovascular disease. Nevertheless, this relationship is not evident in individuals with narrow pulse pressure. Therefore, pulse pressure may be a relevant measure of blood pressure for the definition of normal blood pressure.

Lorenzo C; Aung K; Stern MP; Haffner SM

2009-11-01

317

Investigation of confined ionic liquid in nanostructured materials by a combination of SANS, contrast-matching SANS, and nitrogen adsorption.  

Science.gov (United States)

Small-angle neutron scattering (SANS), contrast-matching SANS, and nitrogen adsorption have been utilized to investigate the confined ionic liquid (IL) [bmim][PF(6)] phase in ordered mesoporous silica MCM-41 and SBA-15. The results suggest that the pores of SBA-15 are completely filled with IL whereas a small fraction of the pore volume, the pore "core", of MCM-41 is empty. The contrast-matching SANS measurements confirm the enhanced solubility of water in IL. In addition, they provide strong evidence that water does not enter the empty pore core of MCM-41, possibly because of the preferred orientation of the IL molecules in the adsorbed layer. PMID:21650166

Stefanopoulos, Konstantinos L; Romanos, George E; Vangeli, Olga C; Mergia, Konstantina; Kanellopoulos, Nick K; Koutsioubas, Alexandros; Lairez, Didier

2011-06-08

318

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

Scientific Electronic Library Online (English)

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

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

2009-03-01

319

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

Directory of Open Access Journals (Sweden)

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

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

2009-01-01

320

Relationship of San Miguel sea lion virus to other members of the calicivirus group.  

UK PubMed Central (United Kingdom)

San Miguel sea lion virus (SMSV) is indistinguishable from vesicular exanthema virus (VEV) and feline calicivirus (FCV) in its morphology and in possessing a single capsid polypeptide with a molecular weight of approximately 65 X 10(3). Neutralization tests readily differentiate the three viruses, but immunodiffusion tests show that SMSV is closely related serologically to VEV but not to FCV. Although the RNAs of the three caliciviruses have similar base compositions, homology tests show that SMSV is closely related to VEV but is not related to FCV. Tryptic peptide maps of the single major polypeptide comprising the capsid of each virus also show that SMSV and VEV are more closely related to each other than to FCV.

Burroughs N; Doel T; Brown F

1978-01-01

 
 
 
 
321

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

Science.gov (United States)

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

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

2006-01-01

322

78 FR 35801 - Safety and Security Zones, San Juan Captain of the Port Zone  

Science.gov (United States)

...1625-AA87 Safety and Security Zones, San Juan Captain of the Port Zone AGENCY: Coast...and security zones within the Sector San Juan Captain of the Port Zone. This action...2013 at 9:00 a.m. at USCG Sector San Juan. ADDRESSES: You may submit comments...

2013-06-14

323

33 CFR 165.758 - Security Zone; San Juan, Puerto Rico.  

Science.gov (United States)

...2010-07-01 false Security Zone; San Juan, Puerto Rico. 165.758 Section 165...District § 165.758 Security Zone; San Juan, Puerto Rico. (a) Location...moored or anchored in the Port of San Juan, Puerto Rico. The security zone for a...

2010-07-01

324

The Forts of Old San Juan: Guardians of the Caribbean. Teaching with Historic Places.  

Science.gov (United States)

The massive masonry defenses of Old San Juan, Puerto Rico, which were begun in the 16th century, exist today as the oldest European-style fortifications within the territory of the United States. This lesson is based on the World Heritage Site nomination file and the National Park Service Handbook, "San Juan: The Forts of Old San Juan." The lesson…

Weltzin, Rosanna

325

78 FR 18789 - Establishment of the San Juan Islands National Monument  

Science.gov (United States)

...March 25, 2013 Establishment of the San Juan Islands National Monument By the President...rocks, and pinnacles known as the San Juan Islands. These islands form an unmatched...islands. Scientists working in the San Juan Islands have uncovered a unique array...

2013-03-28

326

78 FR 61958 - San Juan County Historical Society; Notice of Preliminary Determination of A Qualifying Conduit...  

Science.gov (United States)

...Commission [Docket No. CD13-4-000] San Juan County Historical Society; Notice of Preliminary...Intervene On September 20, 2013, San Juan County Historical Society filed a notice...Mayflower Mill treatment plant, located in San Juan County, Colorado. Applicant...

2013-10-08

327

77 FR 66499 - Environmental Impact Statement: San Bernardino and Los Angeles Counties, CA  

Science.gov (United States)

...Environmental Impact Statement: San Bernardino and Los Angeles Counties, CA AGENCY: Federal Highway...proposed highway project in San Bernardino and Los Angeles Counties, California. DATES...corridor from approximately 2 miles west of the Los Angeles/San Bernardino County line...

2012-11-05

328

33 CFR 334.1140 - Pacific Ocean at San Miguel Island, Calif.; naval danger zone.  

Science.gov (United States)

...2010-07-01 false Pacific Ocean at San Miguel Island, Calif.; naval danger zone... § 334.1140 Pacific Ocean at San Miguel Island, Calif.; naval danger zone...The area. The waters around San Miguel Island, extending about 3...

2010-07-01

329

Ecología térmica de la lagartija endémica Liolaemus eleodori (Iguania: Liolaemidae) en el Parque Nacional San Guillermo, San Juan, Argentina  

Directory of Open Access Journals (Sweden)

Full Text Available La ecología térmica de la lagartija endémica Liolaemus eleodori fue estudiada en el Parque Nacional San Guillermo, provincia de San Juan, Argentina. Los datos fueron colectados durante diciembre de 2004 y febrero de 2005. Se registró la temperatura cloacal (Tb), substrato (Ts) y aire (Ta), con un termómetro de lectura rápida. Liolaemus eleodori presentó una estrategia termorregulatoria de tipo termoconformista con un patrón de actividad de tipo unimodal y uso preferencial del microhábitat suelo desnudo (desprovisto completamente de vegetación). Nuestros datos sugieren que la estrategia termorregulatoria, el uso del espacio y el tiempo están estrechamente relaciondos con las condiciones climáticas rigurosas del sitio de estudio.

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

2012-01-01

330

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

Science.gov (United States)

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

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

2007-01-01

331

L’apport de la cartographie à l’étude des sociétés sans écriture: l’exemple des Celtes de l’âge du Fer.  

Directory of Open Access Journals (Sweden)

Full Text Available L’analyse spatiale est présente en archéologie à toutes les échelles. La datation des sociétés européennes sans écriture a été établie, de l’Égypte à la Scandinavie, par l’analyse de dépôts d’objets indigènes associés à des importations. Les groupes culturels sont identifiés par la répartition géographique des objets, des modes architecturales, des pratiques funéraires. Leur étude permet de dégager des courants d’influence incontestables, sans mouvements de population. L’explication économique n’est pas la seule, les relations aristocratiques ou la mode des banquets orientent les échanges. Les événements politiques ne laissent en revanche aucune trace clairement cartographiable.

Olivier Buchsenschutz

2006-01-01

332

An integrated study of the Grayburg/San Andres Reservoir, Foster and South Cowden Fields, Ector County, Texas. Quarterly report, third quarter 1997  

Energy Technology Data Exchange (ETDEWEB)

The goals of work done this quarter were to (1) refine the maps of seismic-derived porosity for the upper Grayburg for reapplication to the production model, (2) determine rock fabric and porosity patterns for the lower Grayburg and the upper San Andres, (3) relate any seismic-derived porosity characteristics, particularly seismic waveform attributes, to the historical production of oil allocated to lower Grayburg and San Andres zones, and (4) to test other geologic attributes for possible inter-relationships. Progress on these goals is described. Additional studies were carried out in the following: Upper Grayburg porosity mapping, pipeline fracturing, reservoir simulation, reservoir engineering, and water quality for injection.

NONE

1997-12-31

333

A strange new disease in San Francisco:a brief history of the city and its response to the HIV/AIDS epidemic.  

UK PubMed Central (United Kingdom)

Advancements were made in the understanding of the human immunodeficiency virus (HIV) and the management of patients with the acquired immunodeficiency syndrome (AIDS) in many parts of the United States after such patients were first identified in 1981. Nevertheless, the relatively small city of San Francisco contributed a disproportionate share of them, due largely to the city's inclusive political and community response to the HIV/AIDS epidemic, including the activities of its Department of Public Health and San Francisco General Hospital (SFGH). San Francisco's colorful history, multicultural character, and tradition of tolerance attracted many patients who would develop HIV/AIDS to the city. The same factors underlaid the community's compassionate response when large numbers of these patients needed medical services. These factors also motivated the physicians, nurses, and other health professionals at SFGH who cared for the patients on the world's first inpatient AIDS ward.

Luce JM

2013-04-01

334

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

Energy Technology Data Exchange (ETDEWEB)

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

Burroughs, R.L.

1981-01-01

335

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

International Nuclear Information System (INIS)

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

2004-01-01

336

SAN JUAN BAY ESTUARY, COMPREHENSIVE CONSERVATION AND MANAGEMENT PLAN  

Science.gov (United States)

This Comprehensive Conservation and Management Plan (CCMP) contains information about the overall health of the San Juan Bay Estuary (SJBE) as well as proposed solutions to identified problems. These solutions, or Action Plans, are the result of a more than 4-year process of cons...

337

Preliminary SANS studies on nanocrystalline and polymer systems  

International Nuclear Information System (INIS)

[en] We reported some preliminary data on SANS experiment from Nd-Fb-B nanocrystalline commercial sample. The profile at even 12 m SDD (Sample-Detector Distance) still could not include the peak. Some polymer systems representing graft (ABS) and blend (ABS-LDPE and ABS-PP) polymers are also investigated. The profiles are not very satisfactory. (author)

1999-12-02

338

San Juan MB-CCOP - National Cancer Institute  

Science.gov (United States)

The San Juan Minority-Based Community Clinical Oncology Program (SJMBCCOP) was formed and funded by NIH in 1990. The program promotes and expands cancer clinical research on the island of Puerto Rico, which is 100 miles by 35 miles wide and is located in the Caribbean 1,200 miles from the U.S. mainland.

339

The Basic Design Report of the 40M SANS Instrument  

International Nuclear Information System (INIS)

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

2006-01-01

340

Foreland-style flexural subsidence of San Joaquin basin, California  

Energy Technology Data Exchange (ETDEWEB)

A cross section has been constructed through the central San Joaquin basin, California, from the San Andreas fault near Lost Hills to the Owens Valley fault near Mt. Whitney. Tertiary subsidence is approximated from the depths to Pliocene Etchegoin, upper Miocene Monterey, upper Oligocene Vaqueros, and middle Eocene Domengine Formations, and depth to basement. A finite-element code was used to mathematically model the central California lithosphere in two dimensions as a beam floating on a fluid asthenosphere. Preliminary results of modeling show that (1) east-vergent thrust leading in the Coast Ranges was driving San Joaquin basin subsidence throughout much of the Tertiary, and (2) buoyant root-driven uplift and westward tilting of the Sierra Nevada increased basin subsidence in the last 10 m.y. in response to weakening of the lithosphere at the Owens Valley fault. Thrust loading was active by the Paleogene and migrated eastward during the Neogene, causing eastward onlap of Tertiary strata onto the Sierran high. These results provide independent evidence for the existence of a thrust wedge along the west side of the basin. Thrust loading is still a major contributor to basin subsidence, however, as required by the concave-down basin profile and westward-thickening sedimentary units. Results from the San Joaquin suggest that landward-vergent accretion and/or terrane obduction played an important role in California's forearc tectonics, and that compressional tectonics may be controlling sedimentary basin formation in the Neogene transform regime.

Rentschler, M.S.

1988-03-01

 
 
 
 
341

Courtney and I Teach San Diego County History.  

Science.gov (United States)

|Describes how a koala hand puppet was used to teach county history as well as reading and writing skills, multicultural awareness, music, art, and self-esteem to third graders in San Diego, California. Activities that involved the puppet are described. (AM)|

Harry, Kay

1982-01-01

342

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

Directory of Open Access Journals (Sweden)

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

Carlos Gardini; David Rivarola; Maximiliano Agüera; Gerónimo Candela

2009-01-01

343

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

Scientific Electronic Library Online (English)

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

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

2009-11-01

344

Social Integration and Health Behavioral Change in San Luis, Honduras  

Science.gov (United States)

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

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

2010-01-01

345

UC San Diego study identifies early biomarker for pancreatic cancer  

Science.gov (United States)

Researchers at the University of California, San Diego School of Medicine and Moores Cancer Center have identified a new biomarker and therapeutic target for pancreatic cancer, an often-fatal disease for which there is currently no reliable method for early detection or therapeutic intervention. The paper will be published May 15 in Cancer Research.

346

Deterioration of San rock art : new findings, new challenges  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The heritage of San rock art in southern Africa is globally acknowledged, and was one of the primary reasons for the successful nomination of the uKhahlamba / Drakensberg Park in South Africa as a World Heritage Site. Deterioration of rock paintings in the reserve could adversely affect the internat...

Hall, Kevin John; Meiklejohn, K.I. (Ian); Arocena, Joselito; Prinsloo, Linda C.; Sumner, P.D. (Paul); Hall, Lyndl

347

Effects of Taxi Regulatory Revision in San Diego, California.  

Science.gov (United States)

In January 1979, the City of San Diego removed its previous ceiling on taxi licenses and began issuing six new taxi permits every month. Permits are now issued to independent owner-operators as well as fleets, up to a minimum number per month, but a singl...

P. M. Gelb

1983-01-01

348

Cristianismo y neoplatonismo en San Agustín: la crítica heideggeriana  

Scientific Electronic Library Online (English)

Full Text Available Abstract in spanish Así como en San Pablo, Heidegger cree encontrar en San Agustín la expresión de la existencia humana como acontecida históricamente y de la historia como advenir no objetivable ni disponible. Esta facticidad radical del yo se muestra como propia de la experiencia protocristiana que surge con nitidez vigorosa en las Confesiones de San Agustín y particularmente en su libro X. Dos aspectos son centrales en la lectura heideggeriana de las Confesiones: una fenomenología d (more) el yo y la comprensión del Dasein como tiempo. Pero la dramática finitud del existir reconoce en San Agustín un horizonte metafísico teológico que la trasciende y sostiene, mientras en la reflexión heideggeriana la temporalidad de la existencia humana tiende a cerrarse sobre sus propios límites. Abstract in english Heidegger believes to find in St. Augustine, as in the case of Paul, the expression of human existence as a historic fact, and of history as non objectively or available fate. This radical facticity of self belongs to the Christian earliest form of experience that appears with strong clearness in St. Augustine's Confessions, particularly in Book X. There are two relevant aspects that stand out in the Heideggerian reading of Confessions: for one, the phenomenology of self, (more) and secondly, the understanding of Dasein as time. However, in St. Augustine, the dramatic finitude of existence is metaphysically and theologically transcended and grounded; while in Heidegger's reflection, the finitude of human existence tends to close itself on its own limits.

Filippi, Silvana

2010-05-01

349

Deterioration of San rock art: new findings, new challenges  

Scientific Electronic Library Online (English)

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

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

2007-10-01

350

Small angle neutron scattering (SANS) under non-equilibrium conditions  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The use of small angle neutron scattering (SANS) for the study of systems under non-equilibrium conditions is illustrated by three types of experiments in the field of polymer research : — the relaxation of a system from an initial non-equilibrium state towards equilibrium, — the cyclic or repetitiv...

Oberthür, R.C.

351

Beach-fire burns in San Diego County.  

UK PubMed Central (United Kingdom)

In September and October 1986, seven patients were burned in beach fires in San Diego County; this prompted us to review our past patients who suffered beach-fire burns. A review of our registry revealed an additional 15 patients who had been burned in beach fires in the past 2 years. Four such cases are summarized, and common features are described.

Field TO Jr; Dominic W; Hansbrough J

1987-10-01

352

SANS investigation of the photosynthetic machinery of Chloroflexus aurantiacus.  

UK PubMed Central (United Kingdom)

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

Tang KH; Urban VS; Wen J; Xin Y; Blankenship RE

2010-10-01

353

SANS Investigation of the Photosynthetic Machinery of Chloroflexus Aurantiacus  

Energy Technology Data Exchange (ETDEWEB)

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

Tang, Kuo-Hsiang [ORNL; Urban, Volker S [ORNL; Jianzhong, Wen [Washington University, St. Louis; Yueyong, Xin [Washington University, St. Louis; Blankenship, Robert E [ORNL

2010-01-01

354

SANS Investigation of the Photosynthetic Machinery of Chloroflexus Aurantiacus  

International Nuclear Information System (INIS)

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

2010-10-01

355

San Juan Basin, USA; coalbed methane development and production  

Energy Technology Data Exchange (ETDEWEB)

Twenty one slides/overheads outline the talk on production of coalbed methane from sedimentary basins in the USA. Figures are given for production and reserves for the year 2000. The San Juan basin's geologic structure, containing resources of the Cretaceous coal age, primarily in the Fruitland Formation, is described. 4 refs.

Gluskoter, H. [US Geological Survey, Reston, VA (USA)

2002-07-01

356

Four years of meteorological measurements at San Pedro Mártir observatory  

Directory of Open Access Journals (Sweden)

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

R. Michel; D. Hiriart; A. Chapela

2003-01-01

357

Design of 40M SANS instrument at HANARO, Korea  

Science.gov (United States)

The HANARO cold-neutron research facility project was launched on July 1, 2003. A state of the art SANS instrument was selected as a top-priority instrument by an instrument selection committee, which consisted of domestic users and HANARO personnel. An instrument development team and an international and domestic instrument advisory team were formulated. At the end position of the CG1B guide, 40M SANS will be installed in the cold-neutron guide hall. The guide and the instrument simulation were performed using Vitess software and the optimum conceptual design was completed based on the simulation results and the international advisory team reviews. The 100×100 cm2 area detector will be installed and the sample-to-detector distance will vary from 1 to 20 m. The refractive focusing optics and the transmission polarizer/spin flipper setup is planned for installation. The Q range of the 40M SANS instrument will cover from 0.0008 to 1.0 Å-1 when considering the refractive focusing optics. In this paper, the simulation results and the design of the new 40M SANS instrument are presented.

Han, Young-Soo; Choi, Sung-Min; Kim, Tae-Hwan; Lee, Chang-Hee; Kim, Hark-Rho

2006-11-01

358

The Basic Design Report of the 40M SANS Instrument  

Energy Technology Data Exchange (ETDEWEB)

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

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

2006-04-15

359

Plongements élémentaires dans un groupe hyperbolique sans torsion  

Digital Repository Infrastructure Vision for European Research (DRIVER)

L'objet de cette thèse est d'obtenir une description des plongements élémentaires (au sens de la logique du premier ordre) dans un groupe hyperbolique sans torsion. Le résultat principal décrit ces plongements en terme d'une structure définie par Sela dans sa solution au problème de Tarski: la struc...

Perin, Chloé

360

Allocation de ressources dans les réseaux sans fil denses  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Cette thèse s'intéresse au problème de gestion de l'interférence co-canal dans les réseaux de communications sans fil. Tout d'abord nous abordons les systèmes de communications coopératives et étudions le compromis entre les bienfaits et les méfaits de la coopération. Plus un message est redondé via...

Abgrall, Cédric

 
 
 
 
361

Mapping invasive aquatic vegetation in the Sacramento-San Joaquin Delta using hyperspectral imagery.  

Science.gov (United States)

The ecological and economic impacts associated with invasive species are of critical concern to land managers. The ability to map the extent and severity of invasions would be a valuable contribution to management decisions relating to control and monitoring efforts. We investigated the use of hyperspectral imagery for mapping invasive aquatic plant species in the Sacramento-San Joaquin Delta in the Central Valley of California, at two spatial scales. Sixty-four flightlines of HyMap hyperspectral imagery were acquired over the study region covering an area of 2,139 km(2) and field work was conducted to acquire GPS locations of target invasive species. We used spectral mixture analysis to classify two target invasive species; Brazilian waterweed (Egeria densa), a submerged invasive, and water hyacinth (Eichhornia crassipes), a floating emergent invasive. At the relatively fine spatial scale for five sites within the Delta (average size 51 ha) average classification accuracies were 93% for Brazilian waterweed and 73% for water hyacinth. However, at the coarser, Delta-wide scale (177,000 ha) these accuracy results were 29% for Brazilian waterweed and 65% for water hyacinth. The difference in accuracy is likely accounted for by the broad range in water turbidity and tide heights encountered across the Delta. These findings illustrate that hyperspectral imagery is a promising tool for discriminating target invasive species within the Sacramento-San Joaquin Delta waterways although more work is needed to develop classification tools that function under changing environmental conditions. PMID:16741793

Underwood, E C; Mulitsch, M J; Greenberg, J A; Whiting, M L; Ustin, S L; Kefauver, S C

2006-06-02

362

Mapping invasive aquatic vegetation in the Sacramento-San Joaquin Delta using hyperspectral imagery.  

UK PubMed Central (United Kingdom)

The ecological and economic impacts associated with invasive species are of critical concern to land managers. The ability to map the extent and severity of invasions would be a valuable contribution to management decisions relating to control and monitoring efforts. We investigated the use of hyperspectral imagery for mapping invasive aquatic plant species in the Sacramento-San Joaquin Delta in the Central Valley of California, at two spatial scales. Sixty-four flightlines of HyMap hyperspectral imagery were acquired over the study region covering an area of 2,139 km(2) and field work was conducted to acquire GPS locations of target invasive species. We used spectral mixture analysis to classify two target invasive species; Brazilian waterweed (Egeria densa), a submerged invasive, and water hyacinth (Eichhornia crassipes), a floating emergent invasive. At the relatively fine spatial scale for five sites within the Delta (average size 51 ha) average classification accuracies were 93% for Brazilian waterweed and 73% for water hyacinth. However, at the coarser, Delta-wide scale (177,000 ha) these accuracy results were 29% for Brazilian waterweed and 65% for water hyacinth. The difference in accuracy is likely accounted for by the broad range in water turbidity and tide heights encountered across the Delta. These findings illustrate that hyperspectral imagery is a promising tool for discriminating target invasive species within the Sacramento-San Joaquin Delta waterways although more work is needed to develop classification tools that function under changing environmental conditions.

Underwood EC; Mulitsch MJ; Greenberg JA; Whiting ML; Ustin SL; Kefauver SC

2006-10-01

363

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

International Nuclear Information System (INIS)

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

2009-01-01

364

Modeling a sustainable salt tolerant grass-livestock production system under saline conditions in the western San Joaquin Valley of California  

Science.gov (United States)

Salinity and trace mineral accumulation threaten the sustainability of crop production in many semi-arid parts of the world, including California’s western San Joaquin Valley (WSJV). We used data from a multi-year field-scale trial in Kings County and related container trials to simulate a forage-gr...

365

A Study To Determine the Effectiveness of Open Enrollment and Busing as Solutions for the Social Segregation Situation in the San Diego City Schools. A Report.  

Science.gov (United States)

This study examines results of integration programs in cities relatively similar in size and ethnic composition to San Diego. Pertinent case studies, conflicting experimental research findings, and group attitudes reflected in opinion polls are described and evaluated. A summary of the major conclusions and an annotated bibliography complete the…

Kellner, Norman J.

366

Genetic relatedness of the caliciviruses: San Miguel sea lion and vesicular exanthema of swine viruses constitute a single genotype within the Caliciviridae.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The San Miguel sea lion viruses (SMSV) and vesicular exanthema of swine viruses (VESV) are related morphologically and antigenically, but little has been done to determine their genotypic relationship to each other and to other caliciviruses. To examine this relationship, reverse transcriptase PCRs ...

Neill, J D; Meyer, R F; Seal, B S

367

Characterization of a Strain Rate Transient Along the San Andreas and San Jacinto Faults Following the October 1999 Hector Mine Earthquake.  

Science.gov (United States)

We are continuing work on developing and refining a tool for recognizing strain rate transients as well as for quantifying the magnitude and style of their temporal and spatial variations. We determined time-averaged velocity values in 0.05 year epochs using time-varying velocity estimates for continuous GPS station data from the Southern California Integrated GPS Network (SCIGN) for the time period between October 1999 and February 2004 [Li et al., 2005]. A self-consistent model velocity gradient tensor field solution is determined for each epoch by fitting bi-cubic Bessel interpolation to the GPS velocity vectors and we determine model dilatation strain rates, shear strain rates, and the rotation rates. Departures of the time dependent model strain rate and velocity fields from a master solution, obtained from a time-averaged solution for the period 1999-2004, with imposed plate motion constraints and Quaternary fault data, are evaluated in order to best characterize the time dependent strain rate field. A particular problem in determining the transient strain rate fields is the level of smoothing or damping that is applied. Our current approach is to choose a damping that both maximizes the departure of the transient strain rate field from the long-term master solution and achieves a reduced chi-squared value between model and observed GPS velocities of around 1.0 for all time epochs. We observe several noteworthy time-dependent changes. First, in the Eastern California Shear Zone (ECSZ) region, immediately following the October 1999 Hector Mine earthquake, there occurs a significant spatial increase of relatively high shear strain rate, which encompasses a significant portion of the ECSZ. Second, also following the Hector Mine event, there is a strain rate corridor that extends through the Pinto Mt. fault connecting the ECSZ to the San Andreas fault segment in the Salton Trough region. As this signal slowly decays, shear strain rates on segments of the San Andreas fault, just east of Palm Springs, and the San Jacinto fault increase during 2001-2004. During this period shear strain rates increase by roughly 20 nanostrain per year on the San Andreas fault and 20-30 nanostrain per year on the San Jacinto fault (over a zone approximately 20 km wide). Lastly, a further investigation into this strain rate recovery reveals a power law flow mechanism during the first six months after the earthquake for the Anza segment, after which strain rates appear to reach a steady state for the remainder of the data. Moreover, seismicity rates increase along these segments following the period of shear strain rate increase. These results quantify the spatial coverage of the strain rate changes and provide some bounds on their magnitude and confidence, as well as constraints on the associated regional rheology and interseismic cycle strain rate pattern. The compiled epoch solution "movies" may be viewed at the additional resources site.

Hernandez, D.; Holt, W. E.; Bennett, R. A.; Dimitrova, L.; Haines, A. J.

2006-12-01

368

Registro de cáncer ginecológico Clínica San Pedro Claver, Bogotá, Colombia 2003 Cancer institutional registry in a gynaecological service at San Pedro Claver Clinic, Bogotá, Colombia 2003  

Directory of Open Access Journals (Sweden)

Full Text Available Objetivo: revisar los casos nuevos de cáncer ginecológico atendidos durante el año 2003 en la Clínica San Pedro Claver, Bogotá, Colombia. Materiales y métodos: la captación de los casos se hizo a través de la junta de ginecología on­cológica a la cual asisten todas las pacientes nuevas de este servicio. Para garantizar la inclusión de la totalidad de ellas, se realizó una búsqueda activa de casos entre las pacientes hospitalizadas, registros de programación de cirugía, reportes de patología y en consulta externa. Los datos fueron registrados en un archivo de Excel y evaluados mediante el programa EPIINFO 2002. Resultados: se encontraron 158 casos de cáncer ginecológico, siendo el cáncer de cérvix (75 mujeres) el de mayor frecuencia; para efectos del registro, se consideraron dos tipos de tumores de cérvix: los exo­cervicales (59 casos) y los endocervicales (16 casos). En estas dos localizaciones, la distribución por estadios mostró el mayor número de casos en estado Ib, 49% en exocérvix y 62% en los tumores de endocérvix. El tratamiento más frecuentemente indicado en las mujeres con cáncer de cérvix fue la cirugía. El carcinoma de endometrio, con 46 mujeres, mostró mayoría en estado I (50%); el tipo histoló­gico más común fue el carcinoma endometrioide (87%). El tratamiento más usual fue la de cirugía, aplicado en el 93% de ellos. Se encontraron 34 pacientes con carcinoma de ovario, entre los que hubo una proporción igual de casos en estados tempranos I y II que en los tar­díos III y IV; el tipo histológico más frecuente fue el seroso (52,3%). El tratamiento más usado fue la combinación de cirugía y quimioterapia. Conclusiones: el registro institucional de cán­cer de la Clínica San Pedro Claver es una herramien­ta útil para conocer la distribución de los diferentes tumores ginecológicos evaluados en esta entidad. Permite establecer sus características personales, clínicas y las modalidades terapéuticas recibidas. El cáncer ginecológico registrado con mayor frecuencia en el año 2003 en esta clínica, fue el de cérvix. Este carcinoma es susceptible de prevención secundaria mediante la citología cervico-vaginal por lo que se hace imperativa la necesidad de revisar y fortalecer el programa de tamizaje para esta enfermedad.Objective: reviewing new cases of gynaeco­logical cancer attending Clínica San Pedro Claver, Bogotá, Colombia during 2003. Material and methods: the clinic’s oncolo­gical gynaecology committee facilitated compiling data as all new patients benefiting from this service are interviewed by it; a search was made during clinical meetings, in consultants’ offices, amongst hospitalised patients, of operating room schedules and pathological reports to ensure including all new cases. The data so collected was recorded in an excel file; EPIINFO software was then used for analysing it. Results: there were 158 cases of gynaecological cancer, cervical cancer being encountered most frequently (46%). This neoplasm was divided into exocervix (59 cases) and endocervix (16 cases) categories; the cancerous stage found most often in both was Ib. Surgery was most often employed as treatment for this type of cancer. Endometrial cancer was found in 46 women. Stage I (50%), endometroid cancer (55%) and sur­gery (55%) were the stages, histology and treatment most often found, respectively. 34 patients were found to have ovarian cancer, presenting the same ratio of stages I-II as late stage III-IV; serous histology was most frequently encountered (52.3%). A combination of surgery and chemotherapy were most often employed for treating this disease. Conclusions: Clínica San Pedro Claver’s insti­tutional records led to establishing the distribution of different gynaecological tumours being evaluated there, establishing related personal and clinical cha­racteristics and the types of therapy being received. Cervical cancer was found to be the gynaecological cancer appearing most frequently during 2003 in Clínica San Pedro Claver. This type

Mario A González

2005-01-01

369

A helium isotope cross-section study through the San Andreas Fault at seismogenic depths  

Science.gov (United States)

We have analyzed noble gas isotopes in 19 mud gas samples from 116-3943 m borehole depth of the San Andreas Fault Observatory at Depth (SAFOD) Main Hole in the context of origin and spatial variability of fluids occurring at seismogenic depths. The measured 3He/4He ratios range between 0.40 and 1.02 Ra (Ra is the atmospheric 3He/4He ratio of 1.39 × 10-6), with 4He/20Ne values between 0.33 and 4.92, revealing a mixture of three components to the total helium: (1) atmospheric helium, (2) helium with a crustal signature, and (3) mantle-derived helium. The air-corrected 3He/4He ratios fall between 0.2 Ra and 0.9 Ra. Samples from the 2117-3196 m depth show a relatively constant helium isotope composition (0.35-0.46 Ra), indicating that ˜5% of the helium in this section the Pacific Plate is derived from the mantle. The contribution of mantle-derived helium increases slightly in the transition from the Pacific Plate to the North American Plate and reaches maximal values of ˜12% on the North American Plate (below ˜3500 m borehole depth). On the basis of our observations, we suggest that the San Andreas Fault plays a role for fluid flux from greater depths, but higher amounts of mantle-derived fluids rise up through other, more permeable faults, situated on the North American Plate of the San Andreas Fault Zone (SAFZ). Lateral fluid dispersion at shallow depths through permeable country rock of the North American Plate may explain the observed increase in 3He/4He ratios with increasing distance to the SAF.

Wiersberg, Thomas; Erzinger, JöRg

2007-01-01

370

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

Directory of Open Access Journals (Sweden)

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

Ilaria Vanni; Marcello Tarì

2005-01-01

371

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

Directory of Open Access Journals (Sweden)

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

Andrés Covarrubias C.

2002-01-01

372

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

Scientific Electronic Library Online (English)

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

Covarrubias C., Andrés

2002-01-01

373

Cotton yield losses and ambient ozone concentrations in California`s San Joaquin Valley  

Energy Technology Data Exchange (ETDEWEB)

Based on controlled experiments and simulation modeling, ozone (O{sub 3}) has been estimated to cause significant yield losses to cotton. The study reported here was conducted to verity losses for {open_quote}Acala{close_quote} cotton along a gradient of ambient O{sub 3} concentrations across the San Joaquin Valley in California. Cotton was grown in nonfiltered (NF) and charcoal-filtered (CF) open-top chambers, and ambient air (AA) at four sites during the 1988 and 1989 summer growing seasons. Cotton yields (weights of mature bolls m{sup -2}) were reduced in NF compared with CF air in general proportion to O{sub 3} concentrations across all sites and years. Greatest cotton yield losses were as Shafter in the southern part of the San Joaquin Valley (20% in 1989), and lowest losses were at Five Points in the western part of the valley (none in 1989). Ozone injury symptoms on cotton were most noticeable in areas with greatest yield losses. Linear O{sub 3} exposure vs. predicted relative yield loss models using four common exposure indices were constructed for each site and year based on the NF, CF, and AA data. All models except the second highest daily maximum concentration (2ndHDM, the current ambient air quality standard for O{sub 3}) predicted yield losses comparable to those predicted with previously published models for cotton in the San Joaquin Valley. Ozone exposure indices giving more weight to higher O{sub 3} concentrations or the 7-h daytime mean better predicted cotton yield responses over the growing season than 2ndHDM. 27 refs., 2 figs., 7 tabs.

Olszyk, D. [Pacific Southwest Lab., Riverside, CA (United States); Kats, G.; Reagan, C. [Univ. of California, Riverside, CA (United States)] [and others

1993-07-01

374

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

UK PubMed Central (United Kingdom)

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

Becken M; Ritter O; Bedrosian PA; Weckmann U

2011-12-01

375

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

Science.gov (United States)

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

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

2011-11-30

376

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

International Nuclear Information System (INIS)

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

2006-01-01

377

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

Scientific Electronic Library Online (English)

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

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

2011-06-01

378

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

Directory of Open Access Journals (Sweden)

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

Fabiola Soto-Trejo; Guadalupe Palomino; José Luis Villaseñor

2011-01-01

379

Relative efficiency of the radiothermoluminescence induced by 238Pu alpha-particles in LiF:Mg, Al2O3 and CaSO4:Dy  

International Nuclear Information System (INIS)

[en] This work represents a comparative study of the radiothermoluminescence (R.T.L.) induced by 60Co gamma rays and 238Pu alpha-particles in three R.T.L. materials: lithium fluoride, alumina and dysprosium activated calcium sulphate. The T.L. glow curves induced by the two radiations are very similar. However, for the same absorbed dose, different sensitivity is seen to each form of irradiation. Measurements of the relative R.T.L. efficiency, epsilon, were made in the linear zone (dose[fr] Ce travail represente une etude comparative de la radiothermoluminescence (R.T.L.) induite par les rayons ? du 60Co et les particules ? du 238Pu sur trois produits R.T.L.: le fluorure de lithium, l'alumine et le sulfate de calcium active au dysprosium. Les courbes de T.L. induites par les deux rayonnements ont des allures tres similaires. Cependant les deux radiations montrent, pour une meme dose absorbee, des sensibilites differentes. Des mesures de l'efficacite relative de R.T.L., epsilon, ont ete effectuees dans la zone lineaire (dose

1978-01-01

380

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

Directory of Open Access Journals (Sweden)

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

Federico I. Isla; Nerina Iantanos; Enrique Estrada

2002-01-01

 
 
 
 
381

77 FR 59643 - Notice of Intent To Repatriate Cultural Items: San Francisco State University NAGPRA Program, San...  

Science.gov (United States)

...2200-1100-665] Notice of Intent To Repatriate Cultural Items: San Francisco State University...Indian tribe, has determined that the cultural items meet the definition of unassociated...objects, sacred objects, and objects of cultural patrimony and repatriation to the...

2012-09-28

382

Seroprevalencia de sífilis en mujeres embarazadas en San Luis Potosí Seroprevalence of syphilis in pregnant women in San Luis Potosí  

Directory of Open Access Journals (Sweden)

Full Text Available OBJETIVO: Determinar la seroprevalencia de sífilis en mujeres embarazadas. MATERIAL Y MÉTODOS: Encuesta seroepidemiológica en 1 857 mujeres que acudieron para la atención del parto a un hospital general de la ciudad de San Luis Potosí. RESULTADOS: Se diagnosticó sífilis en cinco (0.27%) mujeres al momento del parto. Los factores maternos asociados con una probabilidad superior de presentar sífilis incluyeron mayor edad materna, mayor número de embarazos previos y vivir en unión libre con su pareja. CONCLUSIONES: El número de recién nacidos expuestos a sífilis durante el embarazo, en la ciudad de San Luis Potosí, está subestimado. Los resultados de este estudio sustentan la necesidad de identificar, al momento del parto, a madres infectadas con sífilis.OBJECTIVE: To determine the seroprevalence of syphilis in pregnant women. METHODS: A seroepidemiologic survey was conducted in 1 857 women giving birth at a general hospital in the city of San Luis Potosi, Mexico. RESULTS: Five women (0.27 %) were diagnosed with syphilis at the time of delivery. Maternal factors associated with a greater likelihood of syphilis included older age, a higher number of pregnancies and living out of wedlock. CONCLUSIONS: The number of new borns exposed to syphilis during pregnancy in San Luis Potosi is underestimated. The results of this study support the need to identify syphilis in infected mothers at the time of delivery.

Daniel E Noyola; Octavio Malacara-Alfaro; Victoria Lima-Rogel; Abraham Torres-Montes

2006-01-01

383

Como güelfos y gibelinos: los colegios de San Bernardo y San Antonio Abad en el Cuzco durante el siglo XVII  

Directory of Open Access Journals (Sweden)

Full Text Available This article deals with the conflicts that involved the San Bernardo and San Antonio schools all along the seventeenth century. The author proposes a new approach to explain the social history of colonial Cuzco. He mantains that the root of the confrontation has to do with the privileges that enjoy the jesuits in the provision of academical degrees, a basic requirement to obtain appointments in the civil and eclesiastical administration. To understand this social dinamic, he reconstructs the institutional history of both schools, and reveals the interests that defend the main actors of this secular conflict.Los conflictos que enfrentaron a los colegios de San Bernardo y San Antonio Abad a lo largo del siglo XVII es el tema central de estudio de este ensayo. El autor propone una nueva lectura a este episodio de la historia social del Cuzco colonial. Sostiene que en la raíz de los enfrentamientos estuvo el privilegio que gozaban los jesuitas para la concesión de grados académicos, requisitos fundamentales para obtener cargos en la administración civil y eclesiástica. Para entender la dinámica social, el autor reconstruye la historia institucional de los colegios y los intereses en juego de los principales protagonistas del secular conflicto.

Guibovich Pérez, Pedro M

2006-01-01

384

La prolongación austral de las Sierras de San Luis The Southern Prolongation of Sierras de San Luis  

Directory of Open Access Journals (Sweden)

Full Text Available Al sur de las Sierras de San Luis se ubican en forma meridiana una serie de altos orográficos cuyo extremo austral son las sierras de Varela, del Pozo Peje y Los Cerrillos. En la sierra de Varela las rocas del basamento están representadas por diversos tipos de esquistos y migmatitas. En el sur de esta sierra se halla un complejo volcánico compuesto por pórfiros riolíticos de edad triásica. Las mediciones del campo gravitatorio y magnético indican la presencia de rocas máficas y ultramáficas en su subsuelo como las halladas en Las Águilas y Virorco, en las Sierras de San Luis. En el sector oeste de la cuenca de Alvear se infiere, por los estudios geofísicos, la existencia de rocas básicas.The sierras de Varela, Pozo Peje and Los Cerrillos are the southernmost geomorphological expression of the Sierras de San Luis, a N-S trending mountain range. In the Sierras de Varela, the basement consists of several kinds of schist and migmatites. South of Sierra de Varela, the main outcrops are those of a Triassic rhyolitic volcanic complex. Gravity and magnetic measurements reveal strong anomalies, which are attributed to the presence of mafic and ultramafic rocks in the subsurface. The same type of rocks are responsible for similar geophysical anomalies observed in the area of Las Aguilas and Virorco, in the northern part of the Sierras de San Luis. Geophysical studies suggest that basic rocks are also present in the western part of the Alvear basin.

J. Kostadinoff; D. Gregori; E. Bjerg; A. Raniolo; G. Álvarez

2002-01-01

385

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

International Nuclear Information System (INIS)

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

2012-01-01

386

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

Energy Technology Data Exchange (ETDEWEB)

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

1994-04-01

387

Reduced blood nrf-2 mRNA in local overweight boys at risk of metabolic complications: a study in san luis city, san luis, Argentina.  

UK PubMed Central (United Kingdom)

Abstract Background: Childhood overweight (OW) is a matter of public health concern because of its long-term impact on adulthood health. NF-E2-related factor 2 (Nrf-2) regulates the antioxidant/lipogenic response to a sustained positive energy balance that prevails during weight gain. Here we aimed at studying a possible link between OW and Nrf-2-dependent antioxidant/lipogenic response in a local population of boys at risk of metabolic complications. Methods: We measured clinical and biochemical parameters related to lipid metabolism, oxidative stress, and metabolic syndrome in a population of OW boys [body mass index (BMI) percentile ?85(th) and <95(th), n=22] and normal weight boys (NW; BMI percentile<85(th), n=27) from San Luis City, San Luis, Argentina. Results: Compared to NW, OW boys had lower insulin sensitivity, an altered plasma lipid profile, and increased markers of oxidative stress and inflammatory fatty acids. OW boys also had a higher atherogenic index and peripheral insulin resistance than NW boys. We also found that glutathione peroxidase activity and the reduced glutathione to oxidized glutathione ratio were lower in OW boys than NW boys, suggesting that OW boys may have an altered antioxidant response to oxidative stress. Finally, Nrf-2 expression negatively correlated with metabolic syndrome parameters in OW boys. Conclusions: Our data suggest that OW boys have a reduced antioxidant and lipogenic response to a positive energy balance, resulting in oxidative stress, insulin resistance, and risk of developing metabolic complications. Our data also provide a rationale for nutritional interventions aimed at restoring Nrf-2 expression to reduce the risk of metabolic complications in OW boys.

Santillán LD; Moyano M; Frau M; Flores O; Siewert S; Zirulnick F; Ramirez DC; Giménez MS

2013-10-01

388

Aseismic Slip Events along the Southern San Andreas Fault System Captured by Radar Interferometry  

Energy Technology Data Exchange (ETDEWEB)

A seismic slip is observed along several faults in the Salton Sea and southernmost Landers rupture zone regions using interferometric synthetic aperture radar (InSAR) data spanning different time periods between 1992 and 1997. In the southernmost Landers rupture zone, projecting south from the Pinto Mountain Fault, sharp discontinuities in the interferometric phase are observed along the sub-parallel Burnt Mountain and Eureka Peak Faults beginning three months after the Landers earthquake and is interpreted to be post-Landers after-slip. Abrupt phase offsets are also seen along the two southernmost contiguous 11 km Durmid Hill and North Shore segments of the San Andreas Fault with an abrupt termination of slip near the northern end of the North Shore Segment. A sharp phase offset is seen across 20 km of the 30 km-long Superstition Hills Fault before phase decorrelation in the Imperial Valley along the southern 10 km of the fault prevents coherent imaging by InSAR. A time series of deformation interferograms suggest most of this slip occurred between 1993 and 1995 and none of it occurred between 1992 and 1993. A phase offset is also seen along a 5 km central segment of the Coyote Creek fault that forms a wedge with an adjoining northeast-southwest trending conjugate fault. Most of the slip observed on the southern San Andreas and Superstition Hills Faults occurred between 1993 and 1995--no slip is observed in the 92-93 interferograms. These slip events, especially the Burnt Mountain and Eureka Peak events, are inferred to be related to stress redistribution from the June, 1992 M{sub w} = 7.3 Landers earthquake. Best-fit elastic models of the San Andreas and Superstition Hills slip events suggest source mechanisms with seismic moments over three orders of magnitude larger than a maximum possible summation of seismic moments from all seismicity along each fault segment during the entire 4.8-year time interval spanned by the InSAR data. Aseismic moment releases of this magnitude (equivalent to M{sub w} = 5.3 and 5.6 events on the Superstition Hills and San Andreas Faults respectively) are hitherto unknown and have not been captured previously by any geodetic technique.

Vincent, P

2001-10-01

389

33 CFR 3.35-25 - Sector San Juan Marine Inspection Zone and Captain of the Port Zone.  

Science.gov (United States)

...2010-07-01 2010-07-01 false Sector San Juan Marine Inspection Zone and Captain of the...Guard District § 3.35-25 Sector San Juan Marine Inspection Zone and Captain of the Port Zone. Sector San Juan's office is located in San Juan,...

2010-07-01

390

75 FR 62112 - Intent To Prepare an Environmental Impact Statement (EIS) for the San Juan Creek and Tributaries...  

Science.gov (United States)

...Environmental Impact Statement (EIS) for the San Juan Creek and Tributaries Flood Risk Management...will prepare an EIS to support the San Juan Creek, South Orange County, Feasibility...measures along the lower portions of San Juan, Trabuco, and Oso Creeks. The San...

2010-10-07

391

Earthquakes and Volcanic Processes at San Miguel Volcano, El Salvador, Determined from a Small, Temporary Seismic Network  

Science.gov (United States)

The San Miguel volcano lies within the Central American volcanic chain in eastern El Salvador. The volcano has experienced at least 29 eruptions with Volcano Explosivity Index (VEI) of 2. Since 1970, however, eruptions have decreased in intensity to an average of VEI 1, with the most recent eruption occurring in 2002. Eruptions at San Miguel volcano consist mostly of central vent and phreatic eruptions. A critical challenge related to the explosive nature of this volcano is to understand the relationships between precursory surface deformation, earthquake activity, and volcanic activity. In this project, we seek to determine sub-surface structures within and near the volcano, relate the local deformation to these structures, and better understand the hazard that the volcano presents in the region. To accomplish these goals, we deployed a six station, broadband seismic network around San Miguel volcano in collaboration with researchers from Servicio Nacional de Estudios Territoriales (SNET). This network operated continuously from 23 March 2007 to 15 January 2008 and had a high data recovery rate. The data were processed to determine earthquake locations, magnitudes, and, for some of the larger events, focal mechanisms. We obtained high precision locations using a double-difference approach and identified at least 25 events near the volcano. Ongoing analysis will seek to identify earthquake types (e.g., long period, tectonic, and hybrid events) that occurred in the vicinity of San Miguel volcano. These results will be combined with radar interferometric measurements of surface deformation in order to determine the relationship between surface and subsurface processes at the volcano.

Hernandez, S.; Schiek, C. G.; Zeiler, C. P.; Velasco, A. A.; Hurtado, J. M.

2008-12-01

392

The relationship between carbonate facies, volcanic rocks and plant remains in a late Palaeozoic lacustrine system (San Ignacio Fm, Frontal Cordillera, San Juan province, Argentina)  

Science.gov (United States)

The San Ignacio Fm, a late Palaeozoic foreland basin succession that crops out in the Frontal Cordillera (Argentinean Andes), contains lacustrine microbial carbonates and volcanic rocks. Modification by extensive pedogenic processes contributed to the massive aspect of the calcareous beds. Most of the volcanic deposits in the San Ignacio Fm consist of pyroclastic rocks and resedimented volcaniclastic deposits. Less frequent lava flows produced during effusive eruptions led to the generation of tabular layers of fine-grained, greenish or grey andesites, trachytes and dacites. Pyroclastic flow deposits correspond mainly to welded ignimbrites made up of former glassy pyroclasts devitrified to microcrystalline groundmass, scarce crystals of euhedral plagioclase, quartz and K-feldspar, opaque minerals, aggregates of fine-grained phyllosilicates and fiammes defining a bedding-parallel foliation generated by welding or diagenetic compaction. Widespread silicified and silica-permineralized plant remains and carbonate mud clasts are found, usually embedded within the ignimbrites. The carbonate sequences are underlain and overlain by volcanic rocks. The carbonate sequence bottoms are mostly gradational, while their tops are usually sharp. The lower part of the carbonate sequences is made up of mud which appear progressively, filling interstices in the top of the underlying volcanic rocks. They gradually become more abundant until they form the whole of the rock fabric. Carbonate on volcanic sandstones and pyroclastic deposits occur, with the nucleation of micritic carbonate and associated production of pyrite. Cyanobacteria, which formed the locus of mineral precipitation, were related with this nucleation. The growth of some of the algal mounds was halted by the progressive accumulation of volcanic ash particles, but in most cases the upper boundary is sharp and suddenly truncated by pyroclastic flows or volcanic avalanches. These pyroclastic flows partially destroyed the carbonate beds and palaeosols. Microbial carbonate clasts, silicified and silica-permineralized tree trunks, log stumps and other plant remains such as small branches and small roots inside pieces of wood (interpreted as fragments of nurse logs) are commonly found embedded within the ignimbrites. The study of the carbonate and volcanic rocks of the San Ignacio Fm allows the authors to propose a facies model that increases our understanding of lacustrine environments that developed in volcanic settings.

Busquets, P.; Méndez-Bedia, I.; Gallastegui, G.; Colombo, F.; Cardó, R.; Limarino, O.; Heredia, N.; Césari, S. N.

2013-07-01

393

Thermal maturity patterns of Cretaceous and Tertiary rocks, San Juan Basin, Colorado and New Mexico  

Energy Technology Data Exchange (ETDEWEB)

Horizontal and vertical thermal maturity patterns and time-temperature modeling of Cretaceous and Tertiary rocks in the San Juan Basin of southwestern Colorado and northwestern New Mexico indicate that the high levels of thermal maturity in the northern part of the basin are due to either (1) convective heat transfer associated with a deeply buried heat source located directly below the northern part of the basin or (2) the circulation of relatively hot fluids into the basin from a heat source north of the basin located near the San Juan Mountains. Vitrinite-reflectance (R[sub m]) well profiles through Cretaceous and Tertiary rocks in the basin are commonly nonlinear, with two to four segments having different gradients. The different gradients most likely represent the combined effects of contrasting thermal conductivities associated with lithologic variations and differences in heat transfer processes (conductive versus convective). Time-temperature and kinetic modeling of nonlinear R[sub m] profiles indicates that present-day heat flow is insufficient to account for the measured levels of thermal maturity. Furthermore, in order to match the nonlinear R[sub m] profiles, it is necessary to assign artificially high thermal-conductivity values to some of the stratigraphic units. These unrealistically high thermal conductivities are interpreted as evidence of convective heat transfer. 50 refs., 12 figs., 2 tabs.

Law, B.E. (US Geological Survey, Denver, CO (USA). Federal Center)

1992-02-01

394

ENVIRONMENTAL CHARACTERISTICS OF SAN MATÍAS GULF OBTAINED FROM LANDSAT-TM AND ETM+ DATA  

Scientific Electronic Library Online (English)

Full Text Available Abstract in english The San Matías Gulf, located between 40 47' S and 42 13' S on the Atlantic coast of South America, with an area of approximately 18 000 km², is the second largest in Argentina. This gulf has been studied by means of historical data obtained in oceanographic campaigns carried out before 1990 and with satellite images of low-resolution (1000 m) NOAA-AVHRR obtained from 1985. The analysis of this information permitted to infer some environmental characteristics related to (more) temperature, salinity, productivity and circulation. The objective of the present work is to analyze LANDSAT-TM and ETM+ data from 1997-2003. Approximately 30 free of clouds images, obtained in different times of the year, were processed. The thermal channel allowed to obtain a detailed distribution of surface temperature, to identify thermal fronts and to analyze its variability along the year. Also, this channel and channel 1 permit to observe the influence, in the southern part of the gulf, of the water coming from the continental shelf and San José Gulf. The results obtained did not only contributed to corroborate the environmental characteristics already inferred previously from cruise data, but also, to identify others, so far unknown

Gagliardini, Domingo A; Rivas, Andrés L

2004-01-01

395

Loss of Power and Water Hammer Event at San Onofre, Unit 1, on November 21, 1985  

International Nuclear Information System (INIS)

[en] On November 21, 1985, Southern California Edison's Onofre Nuclear Generating Station, Unit 1, located south of San Clemente, California, experienced a partial loss of inplant ac electrical power while the plant was operating at 60% power. Following a manual reactor trip, the plant lost all inplant ac power for 4 minutes and experienced a severe incidence of water hammer in the feedwater system which caused a leak, damaged plant equipment, and challenged the integrity of the plant's heat sink. The most significant aspect of the event involved the failure of five safety-related check valves in the feed-water system whose failure occurred in less than year, without detection, and jeopardized the integrity of safety systems. The event involved a number of equipment malfunctions, operator errors, and procedural deficiencies. This report documents the findings and conclusions of an NRC Incident Investigation Team sent to San Onofre by the NRC Executive Director for Operations in conformance with NRC's recently established Incident Investigation Program

1986-01-01

396

A geophysical study of the hydrogeology of the Carrizo plain area, San Luis Obispo County, California  

Energy Technology Data Exchange (ETDEWEB)

This investigation was conducted to attempt to locate structural geologic features and variations in aquifer characteristics in an area within the Carrizo plain, San Luis Obispo County, California. The investigation included a review of the established geologic knowledge for the region, followed by field studies. The field studies included surface magnetometer surveys, thermal borehole logging, and a piezometric level survey. Existing borehole electric logs were obtained. The conclusions of the investigation were then derived from a collective interpretation. The investigation concluded that a fault appears to extend beneath the valley fill in the northwestern part of the area, and that a subsurface basaltic dike is apparently located in the southeastern part of the area. Evaluations indicate that the valley has a deep aquifer overlain by a confining clay-rich layer in the central part of the area. Areal and depth-related variations in water quality are probably influenced by the presence of evaporites near Soda Lake and in the region near the San Andreas fault.

Cooper, J.W. (Kennedy/Jenks/Chilton, Bakersfield, CA (United States))

1991-02-01

397

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

Energy Technology Data Exchange (ETDEWEB)

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

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

2006-05-15

398

Predictors of mercury spatial patterns in San Francisco Bay forage fish.  

UK PubMed Central (United Kingdom)

Pollution reduction efforts should be targeted towards those sources that result in the highest bioaccumulation. For mercury (Hg) in estuaries and other complex water bodies, carefully designed biosentinel monitoring programs can help identify predictors of bioaccumulation and inform management priorities for source reduction. We employed a probabilistic forage fish Hg survey with hypothesis testing in San Francisco Bay. The study goal was to determine what pollution sources, regions, and landscape features were associated with elevated Hg bioaccumulation. Across 99 sites, whole body Hg concentrations in Mississippi silversides (Menidia audens) and topsmelt (Atherinops affinis) followed a broad spatial gradient, declining with distance from the Guadalupe River (Pearson's r?=?-?0.69 and -0.42), which drains historic mining areas. Site landscape attributes and local Hg sources had subtle effects which differed between fish species. Topsmelt Hg increased in embayment sites (i.e., enclosed sites including channels, creek mouths, marinas, and coves) and sites with historic Hg contaminated sediment, suggesting an influence of legacy industrial and mining contamination. In 2008, Mississippi silverside Hg was reduced at sites draining wastewater treatment plants. Fish Hg was not related to abundance of surrounding wetland cover but was elevated in some watersheds draining from historic Hg mining operations. Results indicated both regional and site-specific influences for Hg bioaccumulation in San Francisco Bay, including legacy contamination and proximity to treated wastewater discharge. Environ Toxicol Chem © 2013 SETAC.

Greenfield BK; Slotton DG; Harrold KH

2013-07-01

399

Ecology of methanogenesis in two hypersaline biocoenoses: Great Salt Lake and a San Francisco Bay saltern  

Energy Technology Data Exchange (ETDEWEB)

Enrichment cultures were prepared from sediment and brine samples from two hypersaline ecosystems, Great Salt Lake in Utah and a solar saltern located in San Francisco Bay. Methane production was greater when enriched with the biopolymer chitin than with cellulose or peptone. Organisms indigenous to hypersaline ecosystems, brine shrimp (Artemia sp.), halobacteria (Halobacterium sp. and Halococcus sp.) and halophilic algae (Dunaliella sp. and others) were cultivated and added to anaerobic and aerobic microcosms prepared with brine and sediment from the ecosystems studied. Methane production and the concentration of the methanogenic precursor, trimethylamine were greatest with brine shrimp as a supplement. Choline produced the highest concentrations of methane in all samples examined. A number of marine-related ecosystems were also examined for their ability to support methanogenesis at various salinities. Methanogenesis occurred at sea water salinity in the majority of samples, and methane production was observed from three sites at salinity found in Great Salt Lake brine. A halophilic methanogenic bacterium species was isolated from both Great Salt Lake and the San Francisco Bay solar saltern sediments. Cells are irregular, nonmotile cocci, approximately 1.0uM in diameter and stain gram negative.

Paterek, J.R.

1983-01-01

400

Wavelength calibration and instrumental resolution of 36 m SANS BATAN (SMARTer) using Silver Behenate powder  

International Nuclear Information System (INIS)

A 36 meter small angle neutron scattering (SANS) spectrometer was constructed at the neutron scattering