Sample records for los principales factores

  1. Selección de los principales problemas de seguridad de las vacunas

    Microsoft Academic Search

    John K. Iskander; Jane Gidudu; Nelson Arboleda; Wan-Ting Huang

    2008-01-01

    ExtractoEjemplos recientes de los principales beneficios en salud pública de la vacunación incluyen reducciones globales de la mortalidad por sarampión y el registro de niveles bajos de enfermedades evitables por vacunas en Estados Unidos. No obstante, los problemas reales o percibidos de seguridad de las vacunas pueden ejercer un impacto adverso sobre los programas de vacunación. La monitorización sólida de

  2. INTRODUCCIN Los principales retos socioeconmicos a los que

    E-print Network

    Escolano, Francisco

    Universidad. Bloque 3. Relaciones empresariales y alianzas para el desarrollo Abril. LA RESPONSABILIDAD SOCIAL beneficios económicos y sociales que ofrece un modelo de desarrollo sostenible, fundamentado en la cooperación económica y empresarial entre los países de las dos riberas del Mediterráneo. METODOLOGÍA El ciclo

  3. INTRODUCCIN Los principales retos socioeconmicos a los que

    E-print Network

    Escolano, Francisco

    . Relaciones empresariales y alianzas para el desarrollo Abril. LA RESPONSABILIDAD SOCIAL CORPORATIVA (RSC beneficios económicos y sociales que ofrece un modelo de desarrollo sostenible, fundamentado en la cooperación económica y empresarial entre los países de las dos riberas del Mediterráneo. METODOLOGÍA El ciclo

  4. ANÁLISIS CUANTITATIVOS DE LOS PRINCIPALES CONSTITUYENTES QUÍMICOS DE RAÍCES DE Echinacea purpurea Y E. angustifolia PRODUCIDAS EN COSTA RICA1

    Microsoft Academic Search

    Jorge Loaiza; Roberto Valverde; Gerardo Rodríguez; Jorge Molina

    Quantitative analyses of the main che- mical constituents in the roots of Echinacea purpurea and E. angustifolia produced in Cos- ta Rica. Free phenylpropanoids (chlorogenic and cichoric acids), and a glycosidic (echinecoside), as well as the alkamides, present in root extracts of the medicinal plants Echinacea purpureaand E. angustifolia produced in 3 different locations of Costa Rica (Los Santos at

  5. Precariedad laboral de los jóvenes y segmentación por la edad en Rhône-Alpes : análisis global de las condiciones de empleo y estudio específico los principales sectores terciarios

    Microsoft Academic Search

    Irune López-Pérez; Jon Bernat Zubiri-Rey

    2012-01-01

    El periodo neoliberal ha supuesto una regresión en la distribución de excedentes de la economía mercantil. Este proceso se da a escala global y entre clases sociales en cada ámbito localizado, generando una creciente segmentación sociolaboral que se reimpulsa a partir de mediados de los 90 mediante nuevas regulaciones y diversos formatos sectoriales de precarización laboral. La región francesa de

  6. La sobrecarga en los cuidadores principales de enfermos de Alzheimer

    Microsoft Academic Search

    Vicenta Roig; Carmen Abengózar; Emilia Serra

    Title: The burden in the primary caregivers of Alzheimer patients. Abstract: This present study measures the burden experi- enced by the primary caregivers of Alzheimer patients. The sample is composed of 52 subjects of both sexes who had the following characteristics: they were 20 years old or older (there was no upper age limit), primary care- givers of elderly Alzheimer

  7. Prótesis total de rodilla. Estudio de los factores determinantes del alta hospitalaria en rehabilitación

    Microsoft Academic Search

    E. PAGÈS; J. IBORRA; S. RODRÍGUEZ; N. JOU; A. CUXART

    Resumen.—Introducción: El objetivo de este estudio es analizar qué factores son determinantes del alta hospitala- ria en la rehabilitación de los pacientes intervenidos de pró- tesis total de rodilla. Pacientes y métodos: Se ha realizado un estudio prospectivo que incluye 162 pacientes que fueron intervenidos consecuti- vamente de prótesis total de rodilla en el período de tiempo comprendido entre junio

  8. Factors controlling the photochemical generation of gaseous H2O2 in the Los Angeles atmosphere

    Microsoft Academic Search

    Hiroshi Sakugawa; Wangteng Tsai; Isaac R. Kaplan; Yoram Cohen

    1990-01-01

    The factors for controlling the photochemical generation of gaseous H2O2 were studied on the basis of both field data and model predictions. Field data of the concentration of gaseous H2O2 at ground-level were obtained in west Los Angeles during 1985–88. The results indicate that there is a clear seasonal trend of gaseous H2O2 (0.03–1.35 ppb, n=150) with highest concentrations in

  9. Estudio Exploratorio de los Factores para el Desarrollo de Sistemas de Informacion para Dispositivos Moviles

    Microsoft Academic Search

    Juan Manuel Gomez Reynoso; Juan Francisco Lozano Quezada; Monica del Refugio Brizuela Sandoval; Estela Lizbeth Munox Andrade; Carlos Argelio Arevalo Mercado

    2009-01-01

    Las limitaciones de los dispositivos móviles en cuanto a hardware, software, tamaño, entre otras, implican poner atención especial en el diseño de sistemas de información (SI) para los mismos. Las empresas necesitan reaccionar con rapidez al ambiente comercial tan cambiante, para no ser desplazadas en el mercado. La tecnología móvil está teniendo un gran auge para que las empresas respondan

  10. ASEGURANDOSE QUE LOS MERCADOS INCLUYAN A LAS COMUNIDADES Resumen de Polticas

    E-print Network

    . Director de Políticas y Estudios de Mercado, Forest Trends, Washington, D.C., Estados Unidos de América silvícolas. En muchos casos, los bosques y los árboles cultivados constituyen los activos principales de los

  11. LAS TUTORÍAS: FACTOR QUE INFLUYE EN LA TITULACIÓN DE LOS TÉCNICOS SUPERIORES UNIVERSITARIOS EN ADMINISTRACIÓN

    Microsoft Academic Search

    Edgar Torres Escalona; Valentina Barajas Rodríguez; Miguel Ángel Morales Sánchez

    2010-01-01

    El Objetivo General de este artículo es el de presentar los resultados de un estudio descriptivo exploratorio de la generación 30 (cuatrimestre enero-abril 2010) de la Carrera de Administración de la Universidad Tecnológica de Tecámac (UTTec) que permita conocer si las tutorías influyen en el hecho de que se titulen como Técnicos Superiores Universitarios en Administración (TSUA). Aunque reconocemos que

  12. Principales características y diagnóstico de los grupos patógenos de Escherichia coli

    Microsoft Academic Search

    Guadalupe Rodríguez-Angeles

    2002-01-01

    Escherichia coli colonizes the human intestinal tract within hours of birth and is considered a non-pathogenic member of the normal intestinal flora. However, there are six pathogenic groups that may produce diarrhea: enteroto- xigenic (ETEC), enterohemorrhagic (EHEC), enteroinvasive (EIEC), enteropathogenic (EPEC), enteroaggregative (EAEC) and diffusely adherent (DAEC) groups. E. coli can be isolated and classified using traditional methods, by identifying

  13. Factors Associated with HIV Viral Load in a Respondent Driven Sample in Los Angeles

    Microsoft Academic Search

    William D. King; Sherry Larkins; Christopher Hucks-Ortiz; Pin-Chieh Wang; Pamina M. Gorbach; Rose Veniegas; Steven Shoptaw

    2009-01-01

    This study used a modified version of the Behavioral Model for Vulnerable Populations to examine the predisposing, enabling,\\u000a and need factors associated with detectable viral load (VL). HIV status was measured using saliva and confirmed by blood.\\u000a Of 797 persons enrolled, 193 were HIV positive and provided VL counts. A hierarchical multivariate logistic regression approach\\u000a demonstrated that the predisposing factors

  14. Risk Factors for Gliomas and Meningiomas in Males in Los Angeles County1

    Microsoft Academic Search

    Susan Preston-Martin; Wendy Mack; Brian E. Henderson

    1989-01-01

    Detailed job histories and information about other suspected risk factors were obtained during interviews with 272 men aged 25-69 with a primary brain tumor first diagnosed during 1980-1984 and with 272 individually matched neighbor controls. Separate analyses were con ducted for the 202 glioma pairs and the 70 meningioma pairs. Meningi- oma, but not glioma, was related to having a

  15. Factors associated with HPV awareness among mothers of low-income ethnic minority adolescent girls in Los Angeles

    PubMed Central

    Glenn, Beth A.; Tsui, Jennifer; Singhal, Rita; Sanchez, Leah; Nonzee, Narissa J.; Chang, L. Cindy; Taylor, Victoria M.; Bastani, Roshan

    2015-01-01

    Among caregivers of adolescent girls, awareness of human papillomavirus (HPV) is strongly associated with vaccine uptake. Little is known, however, about the predictors of HPV awareness among low-income ethnic minority groups in the U.S. The purpose of this study is to understand demographic factors associated with HPV awareness among low-income, ethnic minority mothers in Los Angeles County. We conducted a cross-sectional study of caregivers of adolescent girls through the Los Angeles County Department of Public Health Office of Women’s Health’s hotline. The majority of the participants were foreign-born (88%), one quarter lacked a usual source of care, and one quarter lacked public or private health insurance for their daughter. We found that one in three participants had never heard of HPV or the vaccine. Mothers that were unaware of HPV were significantly more likely to conduct the interview in a language other than English and to lack health insurance for their daughters. HPV vaccine awareness was much lower in our caregiver sample (61%) than in a simultaneous national survey of caregivers (85%). The associations between lack of awareness and use of a language other than English, as well as lack of health insurance for their daughter indicate the need for HPV vaccine outreach efforts tailored to ethnic minority communities in the U.S. PMID:25434792

  16. LOS FACTORES DE ÉXITO EN LAS EMPRESAS DE HOSPEDAJE Y DESAYUNO (BED & BREAKFAST) 4 Y 3 DIAMANTES DEL ESTADO DE GUANAJUATO

    Microsoft Academic Search

    Campos Alvarado; Guzmná Soria Eugenio; De la Garza Carranza María Teresa; Campos Olalde Ofelia

    2007-01-01

    La industria turística, llamada por muchos “la industria sin chimeneas”, es una de las actividades económicas con mayor impulso en México, la inmigración de adultos extranjeros con fines de inversión, ha provocado sin duda la aparición de unidades económicas denominadas Bed and Breakfast. La finalidad del trabajo es realizar un análisis de los factores de éxito administrativo de estos negocios

  17. Prevalencia y determinación de los factores de riesgo asociados con psicopatología en los candidatos a cirugía bariátrica en la Clínica Reina Sofía, Bogotá, Colombia

    Microsoft Academic Search

    Julio César; Reyes Figueroa; Rodrigo Muñoz Tamayo

    Objectives: To determine the prevalence of psychopathology among bariatric surgery candi- dates at the Reina Sofía Clinic during October-November 2007, and to identify some factors associated to psychopathology in this population. Method: This is a descriptive study with

  18. H2O2 and O3 in the atmosphere of Los Angeles and its vicinity: Factors controlling their formation and their role as oxidants of SO2

    Microsoft Academic Search

    Hiroshi Sakugawa; Isaac R. Kaplan

    1989-01-01

    Factors regulating the formation of gaseous H2O2 and O3, which are considered to be dominant oxidants for SO2 in the atmosphere, were studied in Los Angeles and its vicinity. The concentration of gaseous H2O2, as well as O3, was highest in the early afternoon at all sites studied when the sky was clear or partially cloudy, whereas when it was

  19. Factoring

    NSDL National Science Digital Library

    Mr Clark

    2012-10-31

    Test your factoring skills Factors and Multiples Jeopardy How much do you know about factoring and multiples? Play Jeopardy and find out! Prime Factoring Turkey Shoot Blast these turkeys using your factoring skills. Help the Professor Super save the planet by "cooking" the Giant Frozen Turkeys of Destruction. Math Lines 12 X-Factor Shoot the ball at the other factors to get a product of 12. You can also ...

  20. Human factors aspects of the major upgrade to control systems at the Los Alamos National Laboratory Plutonium Facility

    Microsoft Academic Search

    J. Higgins; N. Pope

    1997-01-01

    The Plutonium Facility (TA-55) at Los Alamos National Laboratory (LANL) has been in operation for over 15 years. It handles projects such as: stockpile maintenance, surveillance, and dismantlement; pit rebuild; plutonium power source fabrication for long duration spacecraft missions (e.g., Cassini); nuclear materials technology research; nuclear materials storage; and remediation of nuclear waste. The Operations Center of TA-55 is the

  1. Le mtabolisme hpatique des glucides et des lipides chez les ruminants : principales interactions

    E-print Network

    Paris-Sud XI, Université de

    Le métabolisme hépatique des glucides et des lipides chez les ruminants : principales interactions métabolisme hépatique chez les ruminants a, jusqu'ici, été peu étudié. Il existe pourtant une somme importante de connaissance dans ce domaine chez les animaux de laboratoire. Chez les ruminants ces recherches

  2. Consejo Social Principales acuerdos de las sesiones del pleno del Consejo Social durante el curso

    E-print Network

    Oro, Daniel

    Consejo Social Principales acuerdos de las sesiones del pleno del Consejo Social durante el curso del curso 2011-12. Ratificación del acuerdo de la Comisión Permanente sobre premios de investigación para estudiantes de segundo curso de bachillerato y de segundo curso de ciclos for- mativos de grado

  3. Systematic variations in strip-out factors used in the assessment of plutonium and americium lung burdens at Los Alamos National Laboratory 

    E-print Network

    Myers, Steven Charles

    1992-01-01

    Variations in Strip-Out Factors Used in the Assessment of Plutonium and Americium Lung Burdens at Los Alamos National Laboratory. (December 1992) Steven Charles Myers, B. A. , State University of New York College at Buffalo; M. Ed. , State University.... Finally a great amount of thanks needs to be heaped upon my thesis committee. Dr. McLain was always encouraging and helpful and at the same time never acted put upon by my demands, although I'm sure at times he must have felt that way. Guiding someone...

  4. List of major recent projects -Lista de los proyectos principales Vulnerabilidad, servicios ecosistmicos y planeamiento del territorio rural "VESPLAN"

    E-print Network

    Rey Benayas, José María

    plagas en cultivos leñosos mediante aves insectívoras (Ministerio de Agricultura, Alimentación y Medio Medio Ambiente y Medio Rural y Marino, Orden ARM/847/2010, 2010). Red internacional de inventarios (pasiva y activa) en la dinámica y diversidad de especies leñosas y aves (CICYT, ref. CGL2007-60533/BOS

  5. Analyse des donnees initiation : Nuage euclidien (Octobre 2006) --B. Le Roux 45 Variables principales

    E-print Network

    Pellier, Damien

    principales · AJ : -`eme nuage principal de dimension 1 Var AJ = (variance de l'axe ou valeur propre) · yj = -- GMj | - / - ) : coordonn´ee du point Aj sur l'axe dans le rep`ere norm´e (G, - - ) · yJ = (yj )j'ajustement pour l'axe 1 : 1 Var MJ pour le plan 1-2 : 1+ 2 Var MJ etc. #12;Analyse des donn´ees initiation

  6. LOS ACTORES SOCIALES Y SU ROL ANTE LOS PROCESOS DEL DESARROLLO SOSTENIBLE A NIVEL LOCAL

    Microsoft Academic Search

    María Elena Hernández Vales; María del Carmen Azorín Domínguez; Víctor Eudel Hernández Herrera; Yudy Aguila Cudeiro

    2012-01-01

    En el presente artículo se hace referencia a las principales definiciones teóricas del concepto de desarrollo formulados por especialistas y estudiosos del tema, profundizando en la evolución histórica del concepto de desarrollo en sus diferentes dimensiones espaciales, haciendo énfasis en lo local como la dimensión más apropiada para entender el impacto de los actores en el desarrollo sostenible, entendida en

  7. Pregnancy attitudes, contraceptive service utilization, and other factors associated with Los Angeles homeless youths’ use of effective contraception and withdrawal

    PubMed Central

    Winetrobe, H.; Rhoades, H.; Barman-Adhikari, A.; Cederbaum, J.; Rice, E.; Milburn, N.

    2013-01-01

    Study Objective This study aims to understand the associations of contraceptive service utilization (i.e., accessing condoms or birth control), pregnancy attitudes, and lifetime pregnancy history among male and female homeless youth in relation to use of effective contraception and withdrawal. Design, Setting, and Participants Between October 2011 and February 2012, homeless youth (14–27 years old) from two drop-in centers in Los Angeles (N=380) were recruited and completed a questionnaire. The data in this paper are restricted to those who reported vaginal sex at last sex (N=283). Main Outcome Measures Analyses examined history of foster care, sexual abuse, exchange sex, pregnancy, lifetime homelessness duration, current living situation, contraceptive service utilization, and pregnancy attitudes in predicting use of effective contraception and withdrawal at last sex. Results Over 62% of females and 43% of males report having ever been pregnant or impregnating someone. There are no gender-based differences in pregnancy attitudes; 21% agree they would like to become pregnant within the year. Additionally, there are no gender-based differences in reported contraceptive use at last vaginal sex. In the multivariable model, high school education, contraceptive service utilization (RRR: 4.0), and anti-pregnancy attitudes (RRR: 1.3) are significant positive predictors of using effective contraception; anti-pregnancy attitudes (RRR:1.2) and gender (RRR: 0.3) are significantly associated with using withdrawal. Conclusions Health professionals should acknowledge that some homeless youth desire pregnancy; for those that do not, access to effective contraception is important. Programs must continue to promote pregnancy prevention, and include discussions of healthy pregnancy habits for pregnancy-desiring youth. PMID:24238265

  8. Factoring

    NSDL National Science Digital Library

    Mrs. Taylor

    2010-10-19

    In this lesson we will explore prime numbers and factors A prime number has only two factors, 1 and itself. The Greek scholar, Eratosthenes of Cyrene lived from approximately 275 to 195 BC. He is know for being the first to have computed the size of the Earth and served as the director of the famous library in

  9. Factorize

    NSDL National Science Digital Library

    2010-01-01

    In this activity, students find factor pairs for a given number and then create a rectangle with those dimensions on a coordinate plane. This activity allows students to explore factorizations of numbers and how they relate to rectangles with that number as an area. This activity includes supplemental materials, including background information about the topics covered, a description of how to use the application, and exploration questions for use with the java applet.

  10. A human factors approach towards the design of a new glovebox glove for Los Alamos National Laboratory

    SciTech Connect

    Oka, Jude M. [Los Alamos National Laboratory

    2012-08-06

    Present day glovebox gloves at Los Alamos National Laboratory (LANL) are underdeveloped and ergonomically inaccurate. This problem results in numerous sprain and strain injuries every year for employees who perform glovebox work. In addition to injuries, using the current glovebox glove design also contributes to breaches and contamination. The current glove used today at LANL has several problems: (1) The length of the fingers is incorrect, (2) the web spacing between the fingers is nonexistent, (3) the angles between each digit on the finger are incorrect, (4) the thumb is placed inaccurately, and (5) the length of the hand is incorrect. These problems present a need to correct the current glove design to decrease the risk of injuries, breaches, and contamination. Anthropometrics were researched to help find the best range of hand measurements to fix the current glove design. Anthropometrics is the measure of the human physical variation. Anthropometrics for this study were gathered from the American National Survey (ANSUR) data that was conducted by the U.S Army in 1988. The current glovebox glove uses anthropometrics from the 95th to 105th percentile range which is too large so the new gloves are going to implement data from a smaller range of percentile groups. The 105th percentile range represents measurements that exceed the human population but are needed to fit certain circumstance such as wearing several under gloves within the glovebox gloves. Anthropometrics used in this study include: 105th percentile measurements for joint circumference which was unchanged because the room for under gloves plus ease of hand insertion and extraction is needed, 80th percentile measurements for crotch length to allow workers to reach the web spacing in the glove, 20th percentile measurements for finger length to allow workers to reach the end of the glove, standard 10.5cm hand breadth to allow more room to accommodate under gloves, 45 degrees abduction angle for the thumb for better positioning, 45 degrees extension angle for the thumb for better positioning, and various angles for the other fingers to allow a more relaxed and natural fit. 3D modeling was used to implement the anthropometric data listed above onto an existing scanned solid model of a human hand. SolidWorks 2010 3-D modeling package was utilized to manipulate the hand model to represent the anthropometric data researched. The anthropometrics and modifications were reviewed by the University of New Mexico Department of Orthopedics hand surgeons. After all modifications and reviews were completed the model was printed out using stereolithography. The printed out model of the hand was used as a mold to create a prototype glovebox glove. The new mold was taken to Piercan USA to produce a 20mil Polyurethane/Hypalon glovebox glove. The Minnesota Dexterity test and Purdue Pegboard test were used to measure the dexterity of the prototype glovebox glove against a current 15 mil Hypalon LANL glovebox glove. Using the data from the tests a student t test was used to determine if there was a significant difference between the current hypalon glove results and the new prototype glove results. With a 95% confidence level the prototype showed to have a significantly lower mean difference from the current hypalon glovebox glove with the Minnesota Dexterity test. With a 95% confidence level the prototype showed to have a significantly higher mean difference from the current hypalon glovebox glove with the Purdue Pegboard test. A p value method was also performed to confirm the results of the student t test. A survey was also given to glovebox workers to determine if they preferred the new design. The best reaction from glovebox workers was the new thumb position, 73.2% of the sample population agreed with the new thumb position. Developing a new glovebox glove will improve the ergonomics of the hand for work performed, decrease exposure time, decreasing risk of breaching, increasing productivity, reducing injuries, and improving work performance. In the future the new glovebox

  11. A prospective study of risk and protective factors for substance use among impoverished women living in temporary shelter settings in Los Angeles County.

    PubMed

    Tucker, Joan S; D'Amico, Elizabeth J; Wenzel, Suzanne L; Golinelli, Daniela; Elliott, Marc N; Williamson, Stephanie

    2005-10-01

    Alcohol and drug use are significant public health problems facing homeless women, but few prospective studies have examined risk and protective factors for substance use in this population. This 6-month prospective study identified psychosocial, behavioral, and economic predictors of drinking to intoxication, crack use, and marijuana use in a probability sample of 402 women living in temporary shelter settings in Los Angeles County with a simple majority of homeless residents (92% of these women had a history of homelessness). Engaging in sexual risk behavior and having depressive symptoms were risk factors for more frequent intoxication, marijuana use, and crack use. Drinking to intoxication was additionally predicted by perceived HIV susceptibility, lower social support, more avoidant and less active coping, and lower self-esteem. Additional predictors of marijuana use included partner alcohol misuse and less social support, whereas more frequent crack use was additionally predicted by partner alcohol misuse, lack of economic resources, and more avoidant and less active coping. These findings suggest that effective substance use programs may need an integrative approach that addresses other types of risk behaviors, assists women in strengthening their support networks and learning effective coping skills, and provides access to basic services (e.g., housing, health care). For women in relationships, there may be a further need to address issues of partner substance use. PMID:16157229

  12. Efficient determination of vehicle emission factors by fuel use category using on-road measurements: downward trends on Los Angeles freight corridor I-710.

    PubMed

    Hudda, N; Fruin, S; Delfino, R J; Sioutas, C

    2013-01-11

    To evaluate the success of vehicle emissions regulations, trends in both fleet-wide average emissions as well as high-emitter emissions are needed, but it is challenging to capture the full spread of vehicle emission factors (EFs) with chassis dynamometer or tunnel studies, and remote sensing studies cannot evaluate particulate compounds. We developed an alternative method that links real-time on-road pollutant measurements from a mobile platform with real-time traffic data, and allows efficient calculation of both the average and the spread of EFs for light-duty gasoline-powered vehicles (LDG) and heavy-duty diesel-powered vehicles (HDD). This is the first study in California to report EFs under a full range of real-world driving conditions on multiple freeways. Fleet average LDG EFs were in agreement with most recent studies and an order of magnitude lower than observed HDD EFs. HDD EFs reflected the relatively rapid decreases in diesel emissions that have recently occurred in Los Angeles/California, and on I-710, a primary route used for goods movement and a focus of additional truck fleet turnover incentives, HDD EFs were often lower than on other freeways. When freeway emission rates (ER) were quantified as the product of EF and vehicle miles traveled (VMT) per time per mile of freeway, despite a twoto three-fold difference in HDD fractions between freeways, ERs were found to be generally similar in magnitude. Higher LDG VMT on low HDD fraction freeways largely offset the difference. Therefore, the conventional assumption that free ways with the highest HDD fractions are significantly worse sources of total emissions in Los Angeles may no longer be true. PMID:24244208

  13. Medicina integrativa en América: De qué forma se está practicando la medicina integrativa en los centros clínicos en los Estados Unidos

    PubMed Central

    Horrigan, Bonnie; Lewis, Sheldon; Abrams, Donald I.; Pechura, Constance

    2012-01-01

    RESUMEN EJECUTIVO El impulso para desarrollar e implementar estrategias de medicina integrativa está enraizado en el deseo de mejorar la atención al paciente. The Bravewell Collaborative, una organización sin ánimo de lucro dedicada a la mejora de la atención sanitaria, define la medicina integrativa como “un enfoque de la medicina que coloca al paciente en el centro y se dirige al conjunto completo de influencias físicas, emocionales, mentales, sociales, espirituales y ambientales que afectan a la salud de la persona. Con una estrategia personalizada que considera las condiciones, necesidades y circunstancias únicas del paciente, utiliza las intervenciones más apropiadas de una variedad de disciplinas científicas para curar la afección y la enfermedad y ayudar a las personas a recobrar y mantener una salud óptima”. En las pasadas dos décadas, se ha documentado un número creciente de centros clínicos que proporcionan medicina integrativa, el número de facultades y escuelas médicas que enseñan estrategias integrativas, el número de investigadores que estudian intervenciones integrativas, y el número de pacientes que solicitan cuidados integrativos. Pero se desconocía si la medicina integrativa se estaba ofreciendo de manera igual, similar, o dispar. Además, mientras que los estudios anteriores se centraban en la prevalencia y el uso de la medicina complementaria o alternativa (MCA) por parte de los pacientes1,2 o de los médicos en hospitales3, enumerando la utilización de terapias MCA individuales, se había recogido muy poca información con respecto a la práctica real de la medicina integrativa que, por definición, trata a la persona en su conjunto. En 2011, The Bravewell Collaborative encargó una encuesta para determinar la forma en que la medicina integrativa se estaba practicando en los Estados Unidos: (1) describiendo las poblaciones de pacientes y las afecciones sanitarias tratadas más habitualmente; (2) definiendo las prácticas y modelos fundamentales de atención; (3) determinando cómo se reembolsaban los servicios; (4) identificando los valores y los principios subyacentes a la atención; y (5) determinando los factores principales que impulsan una implementación satisfactoria.

  14. Cambios en las políticas de vivienda social en la Argentina (1976-2007): ¿Cambiaron también los resultados habitacionales?

    Microsoft Academic Search

    Fernando Cuenin; Ramiro Moya

    2011-01-01

    La presente nota técnica analiza en qué medida los cambios en las políticas de vivienda en Argentina en los últimos 30 años pueden haber impactado los principales resultados habitacionales observados a nivel regional y provincial. El análisis se basa en la construcción de un modelo de datos de panel para 24 provincias argentinas en el período 1976-2007. Específicamente, se estiman

  15. Social and Psychological Factors in Second Language Acquisition: A Study of an Individual. Proceedings of the Los Angeles Second Language Research Forum.

    ERIC Educational Resources Information Center

    Jones, Rebecca A.

    The social and psychological factors which affect one person's acquisition of a second language are described in journal format. The psychological factors discussed are: (1) language shock, (2) culture shock, and (3) culture stress. The two social factors examined are both grouped under the term "social distance" but include (1) types of…

  16. A Comprehensive Analysis of Multi-level Factors Affecting Individuals Walking to Transit Stations in the City of Los Angeles, California

    E-print Network

    Xu, Junping

    2013-11-08

    Information System TOD– Transit Oriented Development USGS – United States Geological Survey SCAG – Southern California Association of Governments vii TABLE OF CONTENTS Page ABSTRACT...…………………………………………………………………….... 26 Figure 2.2 Triangular Relationship ..……………………………………………….... 27 Figure 3.1 Conceptual Model ..…………………………………………………….... 29 Figure 3.2 The Rail System and Metro Links in Los Angeles …………………….... 33 Figure 3.3 Unit of Analysis...

  17. Una mirada de la última Reforma de la Educación Argentina desde las Políticas de Cooperación Educativa de los Organismos Internacionales

    Microsoft Academic Search

    María Blanca Pesado Riccardi

    El presente trabajo es una investigación cualitativa que indaga sobre la relación entre la agenda educativa de los organismos internacionales y la última reforma educativa en nuestro país mediante la técnica de estudio de caso. Con ese criterio, se expone un análisis del cambio educativo argentino identificando causas y consecuencias del fenómeno y advirtiendo el rol que adquirieron los principales

  18. Objective: To assess the role of hospital, patient, payer and clinical factors on inpatient hospital lengths of stay (LOS) and total charges in adults undergoing heart transplantation.

    E-print Network

    Arizona, University of

    Objective: To assess the role of hospital, patient, payer and clinical factors on inpatient: Overall, 5911 patients underwent a heart transplantation between 2002-2005, with 74.1% of these patients Sample (NIS) from 2002 to 2005. All patients above 18 years of age receiving a heart transplantation

  19. Risk Factors for Penile Cancer: Results of a Population-based Case–Control study in Los Angeles County (United States)

    Microsoft Academic Search

    Hung-Fu Tseng; Hal Morgenstern; Thomas Mack; Ruth K. Peters

    2001-01-01

    The etiology of penile cancer is poorly understood, with neonatal circumcision being one of the few recognized nondemographic risk factors. Multiple logistic regression was used to analyze interview data from 100 matched case–control pairs; cases of carcinoma in situ (CIS) and invasive carcinoma of the penis were analyzed separately as well as together. Phimosis was strongly associated with invasive carcinoma

  20. Los Pigmentos Vegetales y la Fotosíntesis

    NSDL National Science Digital Library

    En esta lección se examinarán las dos principales clases de pigmentos fotosintéticos: las clorofilas y los carotenoides. Se analizarán sus estructuras bioquímicas y su biosíntesis, y se explicará además la organización de estos pigmentos en los sistemas fotosintéticos, que son complejos proteicos que colectan y convierten la energía luminosa en energía química.

  1. Spectral Amplification Factors of Long-Period (3 to 10 s) Strong Ground Motions in and around the Los Angeles Basin during the Mw7.2 El Mayor-Cucapah Earthquake of April 4, 2010

    NASA Astrophysics Data System (ADS)

    Hatayama, K.; Kalkan, E.

    2012-12-01

    We evaluated spectral amplification factors of long-period ground motions (3 to 10 s) in the Los Angeles (LA) basin by computing Fourier spectral ratios of the basin sites with respect to the surrounding reference hard-rock sites from the Mw7.2 April 4, 2010 El Mayor-Cucapah earthquake records and presented period-specific (4, 6, 8 and 10 s) maps of amplification factors for the long periods. This earthquake was the first event providing many (236) high-quality recordings to study spatial variation of long-period amplification in the LA basin. We also tried numerical wave propagation simulations for two of the recent 3D seismic-velocity models for south California: SCEC (Southern California Earthquake Center) CVM (Community Velocity Model)-4.0 and CVM-H 6.2 to examine how these models account for the observed long-period amplification factors. Comparison of the period-specific maps of amplification factors between the observation and the simulation for the two velocity models shows that both CVM-4.0 and CVM-H 6.2 can roughly reproduce the observed amplification factors with the period range of 8 to 10 s in the LA basin. Concerning the shorter-period range (4 to 6 s), however, both of the two models leave more to be improved so that the observed amplification factors can be better simulated. We also find that CVM-4.0 has an advantage over CVM-H 6.2 in terms of the south-eastern part of the LA basin, because CVM-H 6.2 indicates non-observed large amplification there, while CVM-4.0 does not indicate the false amplification. For the period of 10 s, the largest amplification factor of about 5 was observed in the central part of the LA basin, which is well simulated in terms of good agreements between the observed and the simulated amplification factors. The simulation from the two velocity models also indicates the large amplification even in the San Gabriel (SG) valley, which disagrees with the observation. For 8 s, larger amplification factors of about 5 were observed not only in the central part of the LA basin but also in the SG valley, which are also well simulated by both of the two models. The CVM-H 6.2 simulation undershoots the observation in the western part of the LA basin, while CVM-4.0 can almost reproduce it. For 6 s, the largest amplification is observed in the western part of the basin (Manhattan Beach), although the amplification in the central part is also large. Around Manhattan Beach, the ground motions with this period are amplified by a factor of 10. There is significant discrepancy between the observation and the simulation for the two models in terms of the places where the largest amplification occurs. For the period of 4 s, the largest amplification factor of about 8 occurs in the central part of the LA basin. Again, the spatial pattern of amplification is basically failed to simulate by either of the two models.

  2. Administration de la recherche Rles et responsabilits Le prsent document, parrain par la vice-principale (recherche et relations internationales) et le vice-

    E-print Network

    Kambhampati, Patanjali

    Administration de la recherche ­ Rôles et responsabilités SOMMAIRE Le présent document, parrainé par la vice-principale (recherche et relations internationales) et le vice- principal (administration et finances), définit les rôles et les responsabilités des personnes et des unités, notamment les

  3. LOS DOCUMENTOS DE ARCHIVOS

    Microsoft Academic Search

    Adela Dionisia González Alamo

    2011-01-01

    Los archivos constituyen la garantía de la evolución jurídica y administrativa de la sociedad, puesto que posibilitan mantener la continuidad institucional e integración de todos sus procesos que contribuyen a su planificación y control, teniendo en cuenta que la delimitación entre los históricos y los administrativos es convencional, y que los documentos son los mismos desde que se producen en

  4. Estudio mediante elementos finitos de la influencia de la pretensión de los ligamentos en la flexión de la rodilla

    Microsoft Academic Search

    Estefanía Peña; Begoña Calvo; Manuel Doblaré Castellano; M. A. Martínez

    1970-01-01

    Es sabido que la mayoría de los tejidos biológicos blandos, incluidos músculos, vasos sanguíneos y ligamentos,\\u000ase encuentran sometidos a tensiones residuales no nulas en el estado libre de cargas. El principal objetivo\\u000ade este artículo es analizar la influencia de la pretensión de los ligamentos principales de la rodilla en el\\u000acomportamiento biomecánico de la articulación durante la flexión

  5. ste artículo se referirá exclusivamente al estudio del caso venezolano y no hará referencia a comparaciones internacionales. Se concretará en una descripción del fenómeno y a una argumentación acerca de los factores asociados a la exclusión escolar, según informaciones y observaciones realizadas en estudios y experiencias de campo en escuelas de Venezuela. En una primera parte se describirá la proporción de desertores, según el grado en el que ocurra el fenómeno y sus consecuencias cuantitativas, según datos oficiales de instancias especializadas

    Microsoft Academic Search

    Mariano Herrera

    1 . Una segunda parte analizará la relación entre educación y pobreza también desde una perspectiva cuantitativa y con enfoque económico. En la tercera parte se abordan los factores educativos asociados al fracaso escolar, es decir no sólo a la deserción sino también a la repitencia, entendiendo que esta es un factor de riesgo de deserción, dependiente del sistema educativo.

  6. Significado de los cambios en la próstata: Guía de salud para los hombres

    Cancer.gov

    Esta guía contiene información sobre los síntomas y factores de riesgo del cáncer de próstata y el análisis del antígeno prostático específico (PSA). También hace referencia a otras enfermedades como próstata agrandada y prostatitis.

  7. Los Derechos de los Pacientes del Centro Clnico

    E-print Network

    Los Derechos de los Pacientes del Centro Clínico Los Derechos de los Pacientes del Centro Clínico medir las respuestas de los pacientes al tratamiento. Existen procesos que protegen los derechos de paciente que se observen los derechos fundamentales de la dignidad humana. Esta Declaración de Derechos

  8. La inserción en el mercado laboral de los inmigrantes latinos en España y en los Estados Unidos: Diferencias por país de origen y estatus legal

    PubMed Central

    Connor, Phillip; Massey, Douglas

    2013-01-01

    Resumen Este artículo compara los resultados económicos entre los inmigrantes latinoamericanos en España y Estados Unidos. Detectamos un efecto de selección por el que la mayoría de los inmigrantes latinoamericanos en España proceden de Sudamérica de un entorno de clases medias, mientras la mayoría de los inmigrantes que van a los Estados Unidos son centroamericanos de clase baja. Este efecto de selección explica las diferencias transnacionales en la probabilidad de empleo, logro ocupacional y salarios obtenidos. A pesar de las diferencias en los orígenes y las características de los latinoamericanos en ambos países, los factores demográficos, humanos y de capital social parecen operar de forma similar en ambos países; y cuando los modelos se estiman separadamente por estatus legal, descubrimos que los efectos se acentúan más entre los inmigrantes irregulares cuando se los compara con los regulares, especialmente en Estados Unidos. PMID:24532857

  9. Los Populismos Latinoamericanos transfigurados

    Microsoft Academic Search

    Marcos Novaro

    Aunque en mayor o menor medida limitadas y condicionadas, las democracias latinoamericanas han logrado sobrevivir a sucesivas o simultáneas crisis económicas, sociales, políticas y financieras durante los últimos años. Su suerte no parece ser ajena a lo que ya, a fines de los años 80, Zermeño denominó «el regreso del líder», postulando una directa correlación entre la fragmentación y la

  10. Los Angeles Settles ACLU Suit on Layoffs

    ERIC Educational Resources Information Center

    Sawchuk, Stephen

    2010-01-01

    A settlement crafted last week seeking to curb the use of seniority as a factor in teacher layoffs in the Los Angeles school system could become one of the nation's most far-reaching overhauls of the "last hired, first fired" policies common in school districts. If approved by a judge, the settlement would shield up to 45 low-performing schools in…

  11. puisement professionnel : principales approches conceptuelles,

    E-print Network

    Boyer, Edmond

    Philippe Zawieja1,2 , Franck Guarnieri1 L'épuisement professionnel, ou burnout, n'est évidemment pas un'historiographie officielle fait généralement remonter la naissance du burnout à 1969. Mais le verbe « to burn out » est sur le burnout une assise universitaire qui leur faisait jusque lors défaut (Maslach, 1976 ; Maslach

  12. Stockpile Stewardship: Los Alamos

    ScienceCinema

    McMillan, Charlie; Morgan, Nathanial; Goorley, Tom; Merrill, Frank; Funk, Dave; Korzekwa, Deniece; Laintz, Ken

    2014-08-12

    "Heritage of Science" is a short video that highlights the Stockpile Stewardship program at Los Alamos National Laboratory. Stockpile Stewardship was conceived in the early 1990s as a national science-based program that could assure the safety, security, and effectiveness of the U.S. nuclear deterrent without the need for full-scale underground nuclear testing. This video was produced by Los Alamos National Laboratory for screening at the Lab's Bradbury Science Museum in Los Alamos, NM and is narrated by science correspondent Miles O'Brien.

  13. Unificando los criterios de sepsis neonatal tardía: propuesta de un algoritmo de vigilancia diagnóstica

    PubMed Central

    Zea-Vera, Alonso; Turin, Christie G.; Ochoa, Theresa J.

    2015-01-01

    Las infecciones constituyen una de las principales causas de muerte en el periodo neonatal. El diagnóstico de sepsis neonatal representa un gran desafío ya que los recién nacidos presentan signos clínicos muy inespecíficos y los exámenes auxiliares tienen una baja sensibilidad. Con el objetivo de mejorar el diagnóstico correcto de esta patología proponemos un algoritmo de vigilancia diagnóstica para sepsis neonatal tardía en el Perú y países de la región. El algoritmo permite clasificar a los episodios como sepsis confirmada, probable o posible, y sobretodo busca identificar aquellos episodios que no corresponden a sepsis, evitando calificar otras patologías como “sepsis”. Un mejor diagnóstico permitiría tener tasas más reales de sepsis neonatal, mejorar el uso de antibióticos y evitar sus efectos negativos en el recién nacido, así como una visión más exacta de su impacto en la salud pública. PMID:25123879

  14. ¿Por que los niños abandonan la escuela? Determinantes de la desercion estudiantil en los colegios oficiales de Cartagena de Indias

    Microsoft Academic Search

    Jorge Alvis; William Arellano

    2009-01-01

    El estudio analiza los factores asociados a la desercion escolar en el distrito de Cartagena y dos estudios de caso correspondientes a las instituciones educativas San Felipe Neri y Tecnica Agropecuaria La Boquilla. Se incluyen variables de análisis relacionadas con las caracteristicas individuales, socioeconomicas, academicas e institucionales de los estudiantes matriculados en el sector oficial como determinantes de esta situación.

  15. Historia del Banco de la República en Cali, y el establecimiento de los principales pilares bancarios en la ciudad a finales del siglo XIX e inicios del siglo XX

    Microsoft Academic Search

    Jaime Andrés Collazos Rodríguez; Arley Barandica Villegas

    2006-01-01

    Dada la escasez de literatura sobre historia de las primeras entidades financieras que se establecieron en Cali a finales del siglo XIX e inicios del XX, este trabajo tuvo como fin, revelar, además de la historia, el papel que desempeñaron dichas instituciones como medio crediticio para financiar obras transcendentales para el desarrollo comercial, industrial y social de Cali, como lo

  16. Taxquake in Los Angeles

    ERIC Educational Resources Information Center

    Koltai, Leslie

    1978-01-01

    Outlines educational, personnel, legal, and political considerations facing the Los Angeles Community College District contingency planning committee in their efforts to develop plans to meet budgetary limitations foreseen in the passage of the Jarvis-Gann property tax limitation initiative. (TP)

  17. CAEN LOS PANTALONCILLOS

    Microsoft Academic Search

    ANA MARÍA ARBOLEDA ARANGO; ELSA MARÍA COELLO C; LINA MARCELA GÓMEZ M

    2008-01-01

    El primer paso para pensar en la posibilidad de llevar a cabo una investigación de mercados es entender el problema de investigación. El presente estudio de caso enfrenta al estudiante a esta problemática utilizando la situación que vivía la Empresa Diseños para EL Interior S.A,. empresa colombiana de confecciones que fabrica ropa interior masculina. “Caen los pantaloncillos” refleja la dinámica

  18. The Los Alamos advanced hadron facility

    SciTech Connect

    Garvey, G.T.

    1989-01-01

    A brief discussion of the plans for the Los Alamos Advanced Hadron Facility (AHF) will be presented. The plans include a 60-GeV proton main ring and two intense lower energy proton beams (1.6 GeV) for a pulsed-neutron source and low duty factor neutrino source. Brief remarks will be made about the physics program and funding status. 10 refs., 3 figs., 6 tabs.

  19. Factor Trees

    NSDL National Science Digital Library

    Math Playground

    2009-07-29

    This virtual manipulative allows students to find the prime factorization of numbers by completing factor trees. Then they may use a venn diagram to sort the prime factors to find the greatest common factor and the least common multiple.

  20. Factor Trees

    NSDL National Science Digital Library

    2010-01-01

    In this online activity, the learner finds the prime factorization of composite numbers by building factor trees. A second level includes finding the greatest common factor and the least common multiple by sorting factors using a Venn Diagram.

  1. Los Angeles Flyby

    NSDL National Science Digital Library

    Jesse Allen

    1999-04-09

    These scenes show Los Angeles and Burbank as seen by the Landsat Thematic Mapper (TM) instrument. The shortwave infrared (TM band 5), infrared (TM band 4), and visible green (TM band 2) channels are displayed in the images as red, green, and blue respectively. In this combination, barren and-or recently cultivated land appears red to pink, vegetation appears green, water is dark blue, and artificial structures of concrete and asphalt appear dark grey or black.

  2. The Los Angeles Times

    NSDL National Science Digital Library

    The Los Angeles Times debuts its Internet edition April 8. It is slated to include daily news and features, coverage of movies and entertainment, a computers and technology section, a special section devoted to Southern California sights and events, classified advertising, and chat boards. The site will be free. A fee based site will also be available, with access to Times' archives, as well as educational and research services. http://www.latimes.com

  3. Factoring with the Factor Tree

    NSDL National Science Digital Library

    Interactive Math Miscellany and Puzzles, Alexander Bogomolny

    2011-01-01

    This Java applet presents a composite number, and prompts you to factor it -- one step at a time. Enter one factor, prime or another composite; the applet calculates the remaining factor, and branches two boxes below any composite factor so that you may proceed factoring until you obtain the full factorization into primes, which the applet colors in green. Click the "Repeat problem" button to see that different factor trees for a given number still result in the same prime factorization.

  4. Los Angeles San Francisco

    E-print Network

    Entekhabi, Dara

    -ups and leading private equity firms Areas of expertise include: Strategy Transaction Services Finance MarketingAirport Customer Society Government Downstream Participants Labor External Factor Cost While the airline industry

  5. EL ALCOHOL EN LOS ADOLESCENTES

    Microsoft Academic Search

    Cristina Ferrer Lacosta

    2009-01-01

    La accesibilidad de los jóvenes a las bebidas alcohólicas es cada vez mayor, a pesar de las prohibiciones impuestas de su venta a menores. La edad media de inicio en el consumo de alcohol entre los escolares, según los datos de la encuesta sobre drogas a la población escolar 1998 (Delegación del Gobierno para el Plan Nacional sobre Drogas), es

  6. Earthquakes: Los Angeles

    NSDL National Science Digital Library

    Although the San Andreas Fault is the longest and one of the most active fault zones in California, it is not responsible for every earthquake in the state. This video segment describes the geologic setting of the San Andreas fault and a network of other active faults, particularly thrust faults, closer to Los Angeles, and explains why these may present a greater danger to the city than the San Andreas Fault. The segment is five minutes fifteen seconds in length. A background essay and discussion questions are included. Running time for the video is 5:15.

  7. Los Alamos Laser Eye Investigation.

    SciTech Connect

    Odom, C. R. (Connon R.)

    2005-01-01

    A student working in a laser laboratory at Los Alamos National Laboratory sustained a serious retinal injury to her left eye when she attempted to view suspended particles in a partially evacuated target chamber. The principle investigator was using the white light from the flash lamp of a Class 4 Nd:YAG laser to illuminate the particles. Since the Q-switch was thought to be disabled at the time of the accident, the principal investigator assumed it would be safe to view the particles without wearing laser eye protection. The Laboratory Director appointed a team to investigate the accident and to report back to him the events and conditions leading up to the accident, equipment malfunctions, safety management causal factors, supervisory and management action/inaction, adequacy of institutional processes and procedures, emergency and notification response, effectiveness of corrective actions and lessons learned from previous similar events, and recommendations for human and institutional safety improvements. The team interviewed personnel, reviewed documents, and characterized systems and conditions in the laser laboratory during an intense six week investigation. The team determined that the direct and primary failures leading to this accident were, respectively, the principle investigator's unsafe work practices and the institution's inadequate monitoring of worker performance. This paper describes the details of the investigation, the human and institutional failures, and the recommendations for improving the laser safety program.

  8. Natural gas price increases in Los Angeles

    SciTech Connect

    Not Available

    1984-07-31

    Natural gas price increases in recent years captured congressional and public attention. To determine which factors contributed to an average price increase of 61% in the Los Angeles, California, area between April 1981 and April 1983, GAO obtained and analyzed information from the distribution company which sells gas to retail customers in Los Angeles, the state agency which regulates it, and the distribution company's four principal pipeline company suppliers. GAO found that about three quarters of the price increase was due to: (1) the depletion of old and less expensive gas reserves and the addition of new and higher cost reserves; (2) price increases permitted by federal regulation; (3) increased imports of relatively expensive Canadian natural gas; (4) contract clauses affecting purchases by the distribution company and its pipeline suppliers; and (5) a decline in gas consumption which made purchasing patterns and company operations less efficient. The remaining increases stemmed from operating costs. 1 figure, 14 tables.

  9. Los Alamos National Laboratory

    SciTech Connect

    Dogliani, Harold O [Los Alamos National Laboratory

    2011-01-19

    The purpose of the briefing is to describe general laboratory technical capabilities to be used for various groups such as military cadets or university faculty/students and post docs to recruit into a variety of Los Alamos programs. Discussed are: (1) development and application of high leverage science to enable effeictive, predictable and reliability outcomes; (2) deter, detect, characterize, reverse and prevent the proliferation of weapons of mass destruction and their use by adversaries and terrorists; (3) modeling and simulation to define complex processes, predict outcomes, and develop effective prevention, response, and remediation strategies; (4) energetic materials and hydrodynamic testing to develop materials for precise delivery of focused energy; (5) materials cience focused on fundamental understanding of materials behaviors, their quantum-molecular properties, and their dynamic responses, and (6) bio-science to rapidly detect and characterize pathogens, to develop vaccines and prophylactic remedies, and to develop attribution forensics.

  10. Subscríbase a los canales RSS

    Cancer.gov

    Los canales de RSS (Really Simple Syndication) ofrecen una manera fácil para que usted pueda mantenerse al día con noticias e información del NCI. La información que a usted le interesa se le envía directamente una vez se subscriba. Los canales de RSS

  11. University of California Los Angeles

    E-print Network

    Soatto, Stefano

    University of California Los Angeles Image inpainting using a modified Cahn-Hilliard equation, Los Angeles 2006 ii #12;Dedicated to my wife Brooke, who put up with the long hours, and to my parents for binary images: continuity of the edge direction

  12. Factor Oracles

    Microsoft Academic Search

    Maxime Crochemore; Lucian Ilie; Emine Seid-hilmi

    2006-01-01

    The factor oracle is a relatively new data structure for the set of factors of a string which has been introduced by Allauzen,\\u000a Crochemore, and Raffinot in 1999. It may recognize non-factors (hence the name “oracle”) but its implementational simplicity\\u000a and experimental behaviour are stunning; factor oracle based string matching has been conjectured optimal on average. However,\\u000a its structure is

  13. Factor Game

    NSDL National Science Digital Library

    National Council of Teachers of Mathematics

    2009-07-22

    The Factor Game engages students in a contest in which winning strategies involve distinguishing between numbers with many factors and numbers with few factors. Students are then guided through an analysis of game strategies and introduced to the definitions of prime and composite numbers.

  14. La educación en España: indicadores del gasto en educación y comparación con los países de la UE

    Microsoft Academic Search

    1994-01-01

    La educación es uno de los bienes que el sector público produce y producirá, porque además de tener características de bien público tiene externalidades, es un bien preferente y es un instrumento redistribuidor de riqueza. La eficiencia exigible al sector público precisa del estudio de las condiciones de provisión del bien. En concreto del conocimiento de los factores de los

  15. Los jóvenes latinoamericanos en transición: Un análisis sobre el desempleo juvenil en América Latina y el Caribe

    Microsoft Academic Search

    Caroline S. Fawcett

    2002-01-01

    Este estudio intenta captar la dinámica del proceso en el cual los jóvenes pasan del desempleo a la escuela, al empleo no remunerado y al empleo no calificado de bajos salarios, y su repercusión en los factores determinantes y en las políticas de desempleo juvenil. Este análisis de política considera las relaciones económicas entre sectores: dónde están estrechamente vinculados los

  16. Biased estimation of Rician K factor

    Microsoft Academic Search

    Nitesh Shroff; K. Giridhar

    2007-01-01

    The time varying envelope of the received signal, for the case when a line of sight (LoS) component exists between the transmitter and the receiver, is described by a Rician distribution with Rician factor K. The Rician factor is a measure of the severity of the fading, with K = 0 being the most severe Rayleigh fading, and K =

  17. Factor Findings

    NSDL National Science Digital Library

    Jamie Piecora

    2000-01-01

    In this lesson, students first create factor posters for a variety of different numbers that will be displayed in the classroom to be utilized as a resource throughout the school year. They make discoveries about factors using color tiles, represent their discoveries using graph paper, and display their information on poster board as find factors of an assigned number. The plan includes a list of materials, questions, assessment options, and extensions.

  18. University of California Los Angeles

    E-print Network

    Soatto, Stefano

    Improved Wavelet Thresholding and Its Appli- cation in Image Processing of TV Denoised Images . . . . . . . 68 iv #12; 3.3 General TV Regularized Wavelet Compression ModelUniversity of California Los Angeles Wavelet Transforms and PDE Techniques in Image Compression

  19. UNIVERSITY OF CALIFORNIA Los Angeles

    E-print Network

    Kolner, Brian H.

    UNIVERSITY OF CALIFORNIA Los Angeles Design and Applications of Resonant Electro-Optic Time Lenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Chapter 2. Electro-Optic Time Lenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 1.2 Electro-Optic Phase Modulation

  20. University of California Los Angeles

    E-print Network

    Ghoniem, Nasr M.

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 5 Deformation of Nano-twinned Copper . . . . . . . . . . . . . . . 78 5.1 Atom Identification Methodology . . . . . . . . . . . . . . . . . . 78 5.2 Deformation of Nano-twinned Copper CrystalsUniversity of California Los Angeles Molecular Dynamics Simulations of the Deformation of Nano

  1. Instantánea de los cánceres infantiles

    Cancer.gov

    Información sobre la incidencia y mortalidad del cáncer en los niños, tendencias en el financiamiento del NCI para la investigación del cáncer infantil; así como ejemplos de actividades y adelantos en la investigación relevantes para esta población.

  2. Investigación sobre los tumores cerebrales

    Cancer.gov

    Información sobre las tendencias de incidencia, mortalidad y financiamiento del NCI sobre los cánceres de cerebro y del sistema nervioso central; así como ejemplos de actividades del NCI y adelantos en la investigación de estos tipos de cáncer.

  3. El desempleo en América Latina y el Caribe a mediados de los años 90

    Microsoft Academic Search

    Gustavo Márquez

    1998-01-01

    El desempleo es uno de los fenómenos más temidos de nuestros tiempos. Pocos fenómenos económicos son reportados tan amplia y sistemáticamente por la prensa, y menos aún generan tal nivel de debate en la opinión pública. Hay razones para este nivel de interés. Los costos económicos de no utilizar una fracción del más importante factor de producción con que cuenta

  4. ANALISIS DE LA MADUREZ COMO CLASE PROFESIONAL DE LOS ESPECIALISTAS DE LOS SISTEMAS DE INFORMACION GEOGRAFICA

    E-print Network

    Gilbes, Fernando

    ANALISIS DE LA MADUREZ COMO CLASE PROFESIONAL DE LOS ESPECIALISTAS DE LOS SISTEMAS DE INFORMACION ramatos@pupr.edu Es interesante observar como los profesionales de los Sistemas de Información Geográfica

  5. INSTRUCCIONES DE ACTUACIN PARA LOS MIEMBROS DE LA DEFENSORA DE LOS DERECHOS UNIVERSITARIOS,

    E-print Network

    Arroyo Rodríguez, Víctor

    INSTRUCCIONES DE ACTUACIÓN PARA LOS MIEMBROS DE LA DEFENSORÍA DE LOS DERECHOS UNIVERSITARIOS, RELATIVAS A LA PRESERVACIÓN Y OBSERVANCIA DE LOS DERECHOS Y OBLIGACIONES DE LOS UNIVERSITARIOS EN EL los Derechos Universitarios después de analizar dichos LINEAMIENTOS aprecia que los mismos son acordes

  6. Los Angeles Mass Transit Strike

    NSDL National Science Digital Library

    Beginning on Saturday, September 16, 2000, the drivers of the Los Angeles city buses launched a strike, stopping the 2,000 buses, subway, and rail lines that cover the 1,400 square miles of Los Angeles County, and stranding nearly half a million bus riders. The 4,300 members of the United Transportation Union (UTU) are on strike over wages and overtime. The Mass Transit Authority (MTA) of Los Angeles will face a $438 million deficit by 2010 if it does not manage to cut costs. Rather than raise fares, the MTA suggested cutting the cost of drivers's overtime pay by fifteen percent over the next three years, for a saving of $23 million. To do this, the MTA proposed that 400 drivers accept a four-day-a-week work schedule, in which they would be on duty twelve hours a day, but would only be paid for ten hours. Overtime would start only after twelve hours. The strike has already proven itself difficult for the people of Los Angeles. Traffic increased nearly five percent, and those Los Angelenos who depend on public transportation to get to work and school, have been forced to walk, carpool, or ride bikes. According to the MTA, 68 percent of MTA riders have household incomes under $15,000 a year. Talks between the UTU and the MTA were to have resumed on Tuesday morning.

  7. Factor Dazzle

    NSDL National Science Digital Library

    2011-01-01

    This interactive online game helps students develop fluency with identifying factors while fostering strategic thinking. A student can play against the computer or against a friend on a 6 by 6 grid containing the numbers 1-36. Each player in turn chooses a number from the board, and then the opponent claims all of its remaining proper factors. A player's score is the sum of all the numbers and factors she/he has chosen. When there are no numbers remaining with unclaimed factors, the game ends and the player with the greater total is the winner. This game is part of NCTM's Calculation Nation project (cataloged separately). Users may login as a guest and play against the computer, or register (free) to challenge other players online.

  8. LOS ENTORNOS TECNOLÓGICOS EN LA UNIVERSIDAD

    Microsoft Academic Search

    Bárbara de Benito; Jesús Salinas

    2008-01-01

    Los entornos tecnológicos suponen uno de los pilares fundamentales en la implementación de entornos virtuales de enseñanza-aprendizaje. Sin embargo la adopción de un determina- do entorno o herramienta no debe responder a su grado de sofisticación o disponibilidad sino a los objetivos pedagógicos e institucionales que debe cubrir. Los principios del diseño instructivo en red y el conocimiento tanto de

  9. STATE NORMAL SCHOOL LOS ANGELES, CALIFORNIA

    E-print Network

    Grether, Gregory

    á #12;STATE NORMAL SCHOOL LOS ANGELES, CALIFORNIA BULLETIN OF .INFORMATION FOR 1915-1916 INCLUDING, 1915-Juniors of the General Professional School (former students only), report for arrangement, Anaheim, - - GEORGE I. COCHRAN, Los Angeles, - EDWIN T. EARL, Los Angeles, - ARTHUR LETTS, Los Angeles

  10. La Virgen de los Sicarios

    Microsoft Academic Search

    Nidia Esperanza Castrillón

    2001-01-01

    Basada en la novela del mismo nombre del autor colombiano Fernando Vallejo La Virgen de los Sicarios tiene lugar en la ciudad de Medellín, a donde Fernando, un escritor de unos cincuenta y tantos años, ha llegado para morir sin ninguna razón aparente. Allí, conoce a Alexis, un joven sicario con quien entabla una relación que sólo termina con la

  11. Los Tiempos de la Economía

    Microsoft Academic Search

    2009-01-01

    Para este número, Anne Macy realiza un análisis “desde dentro” de la crisis en los Estados Unidos desde una perspectiva financiera y con un lenguaje claro y académico., Además, dos temas complementarios presentan un panorama muy específico acerca del comportamiento económico colombiano. Por un lado, Gustavo A. Salas Rada y Gustavo Salas Orozco hacen un diagnóstico de las pensiones, las

  12. UNIVERSITY OF CALIFORNIA Los Angeles

    E-print Network

    McElreath, Richard

    in Anthropology by Richard McElreath 1997 #12;ii TABLE OF CONTENTS Introduction by Richard McElreath Master of Arts in Anthropology University of California, Los Angeles, 1997 Professor Robert Boyd, Chair Cultures like species have unique phylogenetic histories. Unlike biological traits

  13. University of California Los Angeles

    E-print Network

    Alwan, Abeer

    understand the voice source through analyzing images of the vocal folds using laryngeal high- speed of California, Los Angeles 2014 iv #12;To my family . . . my mom, dad, and wife. v #12;Table of Contents 1 The Glottaltopogram: A method of analyzing high-speed images of the vocal folds

  14. University of California Los Angeles

    E-print Network

    Ghoniem, Nasr M.

    University of California, Los Angeles 2006 ii #12;To my wife iii #12;Table of Contents I Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 v #12;List of Figures 1.1 Two experimental atomic images of a single quantum dot. . . . . 2 3.85Ge0.15 buffer layer. . . . . . . . . . 9 3.3 AFM topographic images of Ge SAQDs with 4 - 6 °A

  15. Factor Track

    NSDL National Science Digital Library

    This problem helps learners improve their knowledge of factors, especially those in the usual multiplication tables, and encourages the problem solving strategy of trial and error. The goal of the game is to go around the track in as few moves as possible, keeping to the rules that a player can move any number of spaces which is a factor of the number the player is on, except 1. There is a "training" track to play on initially to see the rules in action and then a more complicated track for players to use. The Teachers' Notes page offers suggestions for implementation, key discussion questions, ideas for extension and support.

  16. Bayes Factors

    Microsoft Academic Search

    Robert E. Kass; Adrian E. Raftery

    1995-01-01

    In a 1935 paper and in his book Theory of Probability, Jeffreys developed a methodology for quantifying the evidence in favor of a scientific theory. The centerpiece was a number, now called the Bayes factor, which is the posterior odds of the null hypothesis when the prior probability on the null is one-half. Although there has been much discussion of

  17. Los Angeles GARDEN GROVE FWY

    E-print Network

    Rose, Michael R.

    Blvd. MacArthurBlvd. JamboreeRd. To Los Angeles CORONA DEL M AR FW Y SAN JOAQUIN HILLS TOLL ROAD Bison Ave to 55 South to 73 South Exit at Bison Ave. Left on Bison Ave. into UCI From the South Take 5 North. into UCI 73 FREEWAY From the North Exit at Bison Ave. Left on Bison Ave. into UCI From the South (toll

  18. Thrombopoietin Factors

    Microsoft Academic Search

    Ping Wei

    \\u000a Megakaryopoiesis and thrombopoiesis are the central biological processes of platelet generation. Severe thrombocytopenia is\\u000a a major morbidity and mortality factor in several diseases and represents a significant unmet medical need. Since the discovery\\u000a of thrombopoietin (TPO) as the primary physiological regulator of megakaryopoiesis, a number of therapeutics have been developed\\u000a for thrombocytopenia and been tested in preclinical models and human

  19. EDAD AVANZADA Y FACTORES DE RIESGO PARA INFARTO AGUDO DE MIOCARDIO

    Microsoft Academic Search

    MARIO A. CIRUZZI; HERMAN SCHARGROSKY; PALMIRA PRAMPARO; JORGE ROSLOZNIK; HORACIO ZYLBERSZTEJN; MONICA HAQUIM; VIVIANA RUDICH; ALBERTO CACCAVO; DANIEL PISKORZ

    Resumen Este estudio caso-control analizó en los sujetos añosos el rol de los factores de riesgo coronario en el desarrollo del infarto agudo de miocardio (IAM), estableció la naturaleza de esta asociación y el gra- do de riesgo. Los datos fueron obtenidos en una investigación que incluyó 1060 casos y 1071 controles, realizada en 35 unidades coronarias de centros médicos

  20. Un análisis microeconómico de la demanda de la tortilla en los municipios de Colima y Villa de Álvarez en el estado de Colima

    Microsoft Academic Search

    Juan Manuel Sánchez Vázquez; José Manuel Rocha Escalante; Rodolfo Mariano Rodríguez Ramos

    2007-01-01

    El objetivo de este trabajo es determinar los factores que influyen en la cantidad demandada de la tortilla, además de conocer los efectos de las variaciones de dichos factores. En especial, buscamos conocer el efecto delas variaciones del precio en el consumo de tortilla. Nuestro estudio comprueba la hipótesis de que en Colima-Villa de Álvarez la demanda de tortilla tiene

  1. Esta Preparado? Gua para los Tejanos en

    E-print Network

    ¿Esta Preparado? Guía para los Tejanos en caso de un Huracan Informacion de evacuacion Información://www.texasonline.com/portal/tol/es/emergency/specialneeds. Para Mas Informacion Oficina del Servicio Nacional de Meteorólogos - http://www.weather.gov/ os acompañan. Los tres son ciclones - sistemas organizados del clima que se desarrollan en los trópicos. Cada

  2. Teoría de los bienes de uso público

    Microsoft Academic Search

    Julián Andrés Pimiento Echeverri

    El trabajo Teoría de los bienes de uso público es un ensayo novedoso en el derecho nacional sobre uno de los temas centrales del derecho administrativo: la naturaleza y régimen de los bienes de uso público. En el país esta materia ha sido analizada, hasta ahora, de manera tangencial por la doctrina —privatista y publicista—sin haber logrado una teoría general

  3. Factors Affecting Student Choices of Instructional Methodologies.

    ERIC Educational Resources Information Center

    Gold, Ben K.

    To identify factors that caused the majority of students at Los Angeles City College to prefer the traditional lecture-discussion approach to the media approach, questionnaires were administered to students in three courses--three media and two traditional. Over 200 usable questionnaires were returned. Because of scheduling variations and other…

  4. Los Alamos Science: Number 16

    SciTech Connect

    Cooper, N.G. (ed.)

    1988-01-01

    It was an unusually stimulating day and a half at Los Alamos when two Nobel Laureates in physiology, a leading paleontologist, and a leading bio-astrophysicist came together to discuss ''Unsolved Problems in the Science of Life,'' the topic of the second in a series of special meetings sponsored by the Fellows of the Laboratory. Just like the first one on ''Creativity in Science,'' this colloquium took us into a broader arena of ideas and viewpoints than is our usual daily fare. To contemplate the evolution and mysteries of intelligent life from the speakers' diverse points of view at one time, in one place was indeed a rare experience.

  5. Reconocer los derechos de los migrantes para fortalecer la integracin regional

    E-print Network

    Richner, Heinz

    Reconocer los derechos de los migrantes para fortalecer la integración regional Buscando una vida su derecho al trabajo. ·El bienestar de las personas migrantes requiere que el Estado y los empleadores garanticen sus derechos sin distinción de condición jurídica, política o social. ·Los más

  6. ESPACIOS DE TRABAJO DE KNOWCAT Los usuarios pueden trabajar con el sistema en los siguientes espacios

    E-print Network

    Cobos, Ruth

    APÉNDICE A ESPACIOS DE TRABAJO DE KNOWCAT Los usuarios pueden trabajar con el sistema en los siguientes espacios: 1. Espacio de Conocimiento: espacio que permite a los usuarios trabajar en la gestión del conocimiento del grupo. 2. Espacio de Comunidad de Usuarios: espacio que proporciona a los

  7. Distributed processors and intelligent workstations at Los Alamos

    SciTech Connect

    Buzbee, B.; Slocomb, C.

    1983-01-01

    The Los Alamos National Laboratory is known for its interest in large-scale and scientific computation. However, since 1978, the Laboratory has developed distributed processing and is now developing a framework for support of microprocessor-based intelligent workstations. As practiced at Los Alamos, distributed processing means the distribution of minicomputers across a relatively large geographical area and the integration of them into a single network. Discussed in this paper are the motivations for the network, the communications technology used, some salient implementation factors, and advantages and disadvantages of distributed processing. Also discussed are the motivations for intelligent workstations, our categorization of workstations, the goals for each category, implementation plans, and some critical issues associated with them.

  8. University of California Los Angeles

    E-print Network

    Quigg, Chris

    for the tt cross-section analysis . . . . . 55 4.1.3 PEM electron ID eÆciencies . . . . . . . . . . . . . . . . . 57 4.1.4 PEM ID eÆciency scale factor . . . . . . . . . . . . . . . . 58 4.1.5 Background rejection . . . . . . . . . . . . . . . . . . . . 80 5.1.1 Vertex correction . . . . . . . . . . . . . . . . . . . . . . . 80 5.1.2 CEM and PEM energy

  9. Los Alamos PC estimating system

    SciTech Connect

    Stutz, R.A.; Lemon, G.D.

    1987-01-01

    The Los Alamos Cost Estimating System (QUEST) is being converted to run on IBM personal computers. This very extensive estimating system is capable of supporting cost estimators from many different and varied fields. QUEST does not dictate any fixed method for estimating. QUEST supports many styles and levels of detail estimating. QUEST can be used with or without data bases. This system allows the estimator to provide reports based on levels of detail defined by combining work breakdown structures. QUEST provides a set of tools for doing any type of estimate without forcing the estimator to use any given method. The level of detail in the estimate can be mixed based on the amount of information known about different parts of the project. The system can support many different data bases simultaneously. Estimators can modify any cost in any data base.

  10. Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY HALL EAST ENTRANCE PORCH SHOWING VAULTS AND LIGHT FIXTURE, FACING UP. - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  11. Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY HALL THIRD FLOOR SHOWING SOUTH LOBBY CEILING AND VAULT, FACING SOUTHWEST. - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  12. Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY HALL FIFTH FLOOR, ELEVATOR LOBBY SHOWING ELEVATOR DOORS, FACING SOUTH - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  13. Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY HALL FIRST FLOOR SHOWING EAST ELEVATOR LOBBY EXPRESS ELEVATOR DOORS, FACING NORTH. - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  14. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL FIFTH FLOOR WEST OFFICE AREA THAT WAS ORIGINAL ART COMMISSION ROOMS, FACING NORTHWEST. - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  15. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL FIFTH FLOOR WEST OFFICE AREA THAT WAS ORIGINAL ART COMMISSION ROOMS, FACING NORTHEAST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  16. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL FIFTH FLOOR BREAK ROOM OFF OF ORIGINAL ART COMMISSION ROOMS, FACING SOUTHEAST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  17. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL FIFTH FLOOR BREAK ROOM OFF OF ORIGINAL ART COMMISSION ROOMS, FACING NORTHEAST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  18. John Ash, AIA, Photographer August 1997. VIEW OF LOS ANGELES ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    John Ash, AIA, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL TENTH FLOOR SOUTH WING CAFETERIA FOOD LINE, FACING NORTH - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  19. Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY HALL FIFTH FLOOR, ELEVATOR LOBBY SHOWING DOORS TO ROOM 500, FACING EAST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  20. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL FOURTEENTH FLOOR Y-CORRIDOR NEAR ROOM 1403, FACING SOUTHWEST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  1. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL FIFTH FLOOR Y-CORRIDOR SOUTH SIDE OF ELEVATOR LOBBY, FACING NORTHEAST. - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  2. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL FOURTEENTH FLOOR Y-CORRIDOR, FACING NORTHWEST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  3. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL FIFTH FLOOR Y-CORRIDOR SOUTH SIDE OF ELEVATOR LOBBY, FACING WEST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  4. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL FIFTH FLOOR Y-CORRIDOR NORTH SIDE OF ELEVATOR LOBBY, FACING EAST. - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  5. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL FOURTEENTH FLOOR Y-CORRIDOR, FACING SOUTHWEST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  6. Electrical Engineering Department Los Angeles, California 90095-1594

    E-print Network

    Chen, Francis F.

    Engineering Department Los Angeles, California 90095-1594 UNIVERSITY OF CALIFORNIA · LOS ANGELES Ion orbits Electrical Engineering Department, University of California, Los Angeles Los Angeles, California 90095) In microtrenches, s only solve Laplace's equation 2 0 = subject

  7. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL FIRST FLOOR PARKING GARAGE, FACING EAST. - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  8. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL FIRST FLOOR PARKING GARAGE, FACING SOUTH. - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  9. John Ash, AIA, Photographer August 1997. VIEW OF LOS ANGELES ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    John Ash, AIA, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL WEST ELEVATION FROM PARKING LOT ACROSS SPRING STREET, FACING EAST. - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  10. Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY HALL NINETEENTH FLOOR MAIN OFFICE AREA SHOWING BEAM AND COLUMN CONNECTION NEAR NORTHWEST CORNER, FACING NORTHWEST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  11. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL FIFTH FLOOR NORTH OFFICE AREA, FACING NORTH - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  12. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL NINETEENTH FLOOR MAIN OFFICE AREA, FACING NORTHEAST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  13. Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY HALL NINETEENTH FLOOR MAIN OFFICE AREA SHOWING DEMOLITION OF WEST WALL, FACING WEST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  14. John Ash, AIA, Photographer August 1997. VIEW OF LOS ANGELES ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    John Ash, AIA, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL FIFTH FLOOR NORTH OFFICE AREA, FACING NORTHEAST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  15. John Ash, AIA, Photographer August 1997. VIEW OF LOS ANGELES ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    John Ash, AIA, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL SEVENTH FLOOR SOUTH OFFICE AREA SHOWING WOOD AND GLASS PARTITIONS, FACING SOUTHEAST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  16. John Ash, AIA, Photographer August 1997. VIEW OF LOS ANGELES ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    John Ash, AIA, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL SEVENTH FLOOR SOUTH OFFICE AREA SHOWING STRUCTURAL PIERS AND FLORESCENT LIGHTS, FACING NORTHWEST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  17. John Ash, AIA, Photographer August 1997. DETAIL OF LOS ANGELES ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    John Ash, AIA, Photographer August 1997. DETAIL OF LOS ANGELES CITY HALL SEVENTH FLOOR SOUTH OFFICE AREA SHOWING RADIATOR AND WINDOWS, FACING EAST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  18. Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY HALL NINETEENTH FLOOR MAIN OFFICE AREA SHOWING BEAM AND COLUMN CONNECTION NEAR SOUTHEAST CORNER, FACING SOUTHEAST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  19. Bruce D. Judd, FAIA, Photographer August 1997. DETAIL OF LOS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Bruce D. Judd, FAIA, Photographer August 1997. DETAIL OF LOS ANGELES CITY HALL SIXTH FLOOR NORTH OFFICE AREA WINDOW, FACING NORTHWEST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  20. Bruce D. Judd, FAIA, Photographer August 1997. VIEW OF LOS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Bruce D. Judd, FAIA, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL SIXTH FLOOR NORTH OFFICE AREA, FACING NORTH - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  1. Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. DETAIL OF LOS ANGELES CITY HALL NINETEENTH FLOOR MAIN OFFICE AREA SHOWING DEMOLITION OF SOUTH WALL, FACING SOUTH - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  2. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL FOURTEENTH FLOOR, SERVICE AREA DOOR NEAR ELEVATOR LOBBY, FACING SOUTH - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  3. Bruce D. Judd, FAIA, Photographer August 1997. VIEW OF LOS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Bruce D. Judd, FAIA, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL ELEVENTH FLOOR KITCHEN OF EXECUTIVE DINING AREA SHOWING ARCHED STRUCTURE, FACING NORTHWEST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  4. Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Monica Griesbach, Photographer August 1997. VIEW OF LOS ANGELES CITY HALL NINETEENTH FLOOR MAIN OFFICE AREA, FACING NORTHWEST - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  5. Los Alamos LEDCOP Opacity Code

    SciTech Connect

    Magee, N.H. Jr.; Merts, A.L.

    1989-01-01

    The Los Alamos Light Element (Z {le} 30) Detailed Configuration Opacity Code (LEDCOP), used to calculate opacities in local thermodynamic equilibrium (LTE), has been rewritten to incorporate more detailed atomic physics input. This paper outlines the recent improvements in the code that will provide new Rosseland opacities and, more importantly, better group mean opacities for modern radiation-hydrodynamic codes. The first major area of improvement is the inclusion of a complete set of accurate and internally-consistent Hartree-Fock LS term energies and oscillator strengths for each element. While relatively unimportant for equation of state (EOS), this does provide an improved distribution of line energies and strengths for group mean opacities. Secondly, the code now used Hartree-Fock photoionization cross sections for all ground and excited configurations of all ionization stages. These new cross sections are consistent with the bound-bound oscillator strengths and in many cases their inclusion affects the opacity more than the new LS oscillator strengths. 11 refs., 16 figs.

  6. Efficient networks for quantum factoring

    SciTech Connect

    Beckman, D.; Chari, A.N.; Devabhaktuni, S.; Preskill, J. [California Institute of Technology, Pasadena, California 91125 (United States)] [California Institute of Technology, Pasadena, California 91125 (United States)

    1996-08-01

    We consider how to optimize memory use and computation time in operating a quantum computer. In particular, we estimate the number of memory quantum bits (qubits) and the number of operations required to perform factorization, using the algorithm suggested by Shor [in {ital Proceedings} {ital of} {ital the} 35{ital th} {ital Annual} {ital Symposium} {ital on} {ital Foundations} {ital of} {ital Computer} {ital Science}, edited by S. Goldwasser (IEEE Computer Society, Los Alamitos, CA, 1994), p. 124]. A {ital K}-bit number can be factored in time of order {ital K}{sup 3} using a machine capable of storing 5{ital K}+1 qubits. Evaluation of the modular exponential function (the bottleneck of Shor{close_quote}s algorithm) could be achieved with about 72{ital K}{sup 3} elementary quantum gates; implementation using a linear ion trap would require about 396{ital K}{sup 3} laser pulses. A proof-of-principle demonstration of quantum factoring (factorization of 15) could be performed with only 6 trapped ions and 38 laser pulses. Though the ion trap may never be a useful computer, it will be a powerful device for exploring experimentally the properties of entangled quantum states. {copyright} {ital 1996 The American Physical Society.}

  7. LOS CONTROVERTIDOS "DERECHOS OPONIBLES" Eric Millard

    E-print Network

    Boyer, Edmond

    LOS CONTROVERTIDOS "DERECHOS OPONIBLES" Eric Millard Universidad de París X (trad. Ricardo Guibourg público justamente donde ­ en negación del derecho de propiedad ­ los okupas trataban de instalarse en edificios vacíos, exhibía una reivindicación simple: la del reconocimiento de un derecho a la vivienda

  8. The Los Angeles Rebellion: A Retrospective View

    Microsoft Academic Search

    James H. Johnson; Cloyzelle K. Jones; Walter C. Farrell; Melvin L. Oliver

    1992-01-01

    The Los Angeles rebellion of 1992 is evaluated from an urban political economy perspective. After discussing the anatomy of the rebellion and assessing retrospectively the outcome of the police brutality trial; the civil unrest is situated within the broader context of the recent demographic, social, and economic changes occurring in Los Angeles society. This is followed by a critical review

  9. DIMENSIONALIDAD EN LOS MODELOS DE CRECIMIENTO

    E-print Network

    García, Oscar

    Modelos de un mismo sistema pueden diferir mucho en su escala, nivel de detalle, o más preci- samente en, Sistemas complejos, Gestión forestal INTRODUCCIÓN Los modelos de crecimiento son útiles como instrumentosDIMENSIONALIDAD EN LOS MODELOS DE CRECIMIENTO Oscar García University of Northern British Columbia

  10. Segunda parte LAS CIUDADES Y LOS VECINOs

    E-print Network

    Paris-Sud XI, Université de

    italianas2 , se propaga al resto de las ciudades del Occidente mediterráneo a finales de la Edad Media. Los permiten conocer, con mayor o menor precisión, su vida económica, social, política y cultural, en la Baja Edad Media. Empero, la gestión de los servicios colectivos por la oligarquía que monopolizaba el

  11. Los Testigos de Jehová: algunas anotaciones

    Microsoft Academic Search

    Loida Ibars Samaniego

    2006-01-01

    Los Testigos de Jehová son un grupo religioso que comparte nuestro entorno cotidiano. Muchas son las personas que conocen a algún miembro que pertenece al mismo o que han recibido noticias de esta comunidad a través de los medios de comunicación. Este artículo hace referencia a sus creencias, su organización, su vida cotidiana, su proceso de conversión y sus relaciones

  12. De los hacendados a los forestales: Manejo del espacio, dominacidn y explotacidn del bosque

    E-print Network

    Paris-Sud XI, Université de

    uno más entre los numerosos medios de control que supieron y saben usar los dominantes en el medio autonomía, a través del control de los circuitos de créditos, de asesoría técnica, de "programas de el Estado, bajo el impulso del gobernador A. Tejeda. Por otro lado, en cuanto a la propiedad privada

  13. Enfoque CRM percepciones de los usuarios de los procesos administrativos académicos y su valor agregado

    Microsoft Academic Search

    Joseph Robert Voelkl Peñaloza; Jorge Alberto Silva Rueda; Clara Mabel Solano Vanegas; Luis Manuel Pulido Moreno

    2009-01-01

    Se estudia cómo mejorar la percepción positiva hacia los servicios administrativos de un programa de educación superior en sus diferentes procesos y a través de todas sus áreas, en la Carrera de Ingeniería Industrial de la Pontificia Universidad Javeriana – Sede Bogotá D.C. Se identifican los momentos críticos del mismo en tanto son percibidos por los usuarios como puntos donde

  14. Status of the experimental studies of the electron cloud at the Los Alamos proton storage ring

    SciTech Connect

    Macek, R. J. (Robert J.); Browman, A. A. (Andrew A.); Borden, M. J. (Michael J.); Fitzgerald, D. H. (Daniel H.); McCrady, R. C. (Rodney C.); Spickermann, T. J. (Thomas J.); Zaugg, T. J. (Thomas J.)

    2003-01-01

    The electron cloud (EC) at the Los Alamos Proton Storage Ring (PSR) has been studied extensively for the past several years with an overall aim to identify and measure its important characteristics, the factors that influence these characteristics, and to relate these to the two-stream (e-p) transverse instability long observed at PSR. Some new results since PAC2001 are presented.

  15. GENERAL TECHNICAL REPORT PSW-GTR-245 Manejando los Riesgos del Manejo del

    E-print Network

    Standiford, Richard B.

    explícitamente en el proceso de toma de decisiones de los gerentes de incendios daría lugar, con suerte, a un reconocimiento e internalización de estos factores en sus decisiones. Palabras clave: Riesgo profesional, toma de). En esencia, la gestión del riesgo es un problema en la toma de decisiones basada en el riesgo, y el

  16. ORIGINS OF AEROSOL SULFUR SIZE DISTRIBUTIONS IN THE LOS ANGELES BASIN

    EPA Science Inventory

    Low pressure impactor measurements show two distinct types of fine particle sulfur size distributions in Los Angeles. These types have mass median diameters of 0.54 + or - 0.07 micrometers and 0.20 + or - 0.02 micrometers, respectively. Factors which may account for the two distr...

  17. Los Angeles at Work: 1920-1939

    NSDL National Science Digital Library

    An online photo gallery from the Los Angeles Public Library, Los Angeles at Work is a collection of captioned photographs documenting different jobs held by the men and women of LA from 1920 to 1939. The photographs were chosen from an archive of thousands of pictures taken by the staff of the Los Angeles Chamber of Commerce. The pithy captions describe the circumstances of the photos, highlight some of the details, and give the dates and locations of the photos. Click on the thumbnails of the pictures in order to enlarge them.

  18. Power Factor Compensation (PFC) Power Factor Compensation

    E-print Network

    Knobloch,Jürgen

    Power Factor Compensation (PFC) Power Factor Compensation The power factor (PF) is defined as the ratio between the active power and the apparent power of a system. If the current and voltage are periodic with period , and [ ), then the active power is defined by ( ) ( ) (their inner product

  19. Sermonario en lengua mexicana donde se contiene (por el orden del Misal nuevo Romano) dos sermones en todas las Dominicas y Festividades principales de todo el año ; y otro en las Fiestas de los Santos : con sus vidas, y Comunes. Con un Catecismo 

    E-print Network

    Juan de la Anunciació n, fray, 1514-1594

    2011-03-25

    and John D. Oswald” Poster Presentation, Student Research Week, College Station, Texas, March, 2007 “A survey of the auchenorrhynchan (Hemiptera) of Dominica, West Indies.” Therese Catanach and Jonathan Cammack. Entomological Society of America...

  20. DEFENSORA DE LOS DERECHOS UNIVERSITARIOS. INFORME DE ACTIVIDADES

    E-print Network

    Islas, León

    DEFENSORÍA DE LOS DERECHOS UNIVERSITARIOS. INFORME DE ACTIVIDADES 2003-2004 En cumplimiento de lo dispuesto por los Artículos 10 del Estatuto de la Defensoría de los Derechos Universitarios y 10 Fracción IX marzo de 2004. En este Informe de gestión del Defensor de los Derechos Universitarios se describen los

  1. Juan Rulfo en Nueva York: Estreno de Los encuentros

    E-print Network

    Glickman, Nora

    1995-04-01

    convertirse en un muerto más entre los muertos. En el mundo macabro de Cómala, los difuntos vibran con más color que en el mundo de los vivos. Los encuentros despliega un montaje circular en el que los personajes salen y entran continuamente. Diez actores...

  2. COMPOSITION OF AEROSOLS OVER LOS ANGELES FREEWAYS

    EPA Science Inventory

    In October of 1976, aerosol particulate samples were collected while driving on Los Angeles freeways and were analyzed for sulfate, nitrate, and elemental composition. The measurements indicate that neither nitrate nor sulfate concentrations increased significantly over the roadw...

  3. Los Angeles Public Library Photograph Collection

    NSDL National Science Digital Library

    2012-08-03

    The Los Angeles Public Library has thousands of photographs in its archives. Taken as a whole, the archives represent a thoroughly wonderful portrait of the Southland during the past century or so. First-time visitors should click on the Photo Collection Overview area to learn about the holdings here. One particularly noteworthy addition to the collection occurred back in 1981 when Security Pacific National Bank gave its collection of over 250,000 photographs to the people of Los Angeles. These images included 60,000 images from the Los Angeles Chamber of Commerce and images from the Hollywood Citizen News publication. Also, the collection includes over 2.2 million photographs from the defunct Los Angeles Herald Examiner, which ceased publication in 1989. Visitors to the site can search many of these photos online via the search engine, which includes fields where users can enter keywords, photographer, and year.

  4. Learning with matrix factorizations

    E-print Network

    Srebro, Nathan, 1974-

    2004-01-01

    Matrices that can be factored into a product of two simpler matrices can serve as a useful and often natural model in the analysis of tabulated or high-dimensional data. Models based on matrix factorization (Factor Analysis, ...

  5. Factor V deficiency

    MedlinePLUS

    ... in blood plasma. These proteins are called blood coagulation factors. Factor V deficiency is caused by a ... Ragni MV. Hemorrhagic disorders: coagulation factor deficiencies. ... 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 167.

  6. 20. EAST PORTAL MONO CRATERS LOOKING NORTHWEST Los Angeles ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    20. EAST PORTAL MONO CRATERS LOOKING NORTHWEST - Los Angeles Aqueduct, From Lee Vining Intake (Mammoth Lakes) to Van Norman Reservoir Complex (San Fernando Valley), Los Angeles, Los Angeles County, CA

  7. 2. LEE VINING INTAKE, MONO LAKE IN BACKGROUND. Los ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. LEE VINING INTAKE, MONO LAKE IN BACKGROUND. - Los Angeles Aqueduct, From Lee Vining Intake (Mammoth Lakes) to Van Norman Reservoir Complex (San Fernando Valley), Los Angeles, Los Angeles County, CA

  8. 40. PLEASANT VALLEY RESERVOIR DAM LOOKING NORTHWEST Los Angeles ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    40. PLEASANT VALLEY RESERVOIR DAM LOOKING NORTHWEST - Los Angeles Aqueduct, From Lee Vining Intake (Mammoth Lakes) to Van Norman Reservoir Complex (San Fernando Valley), Los Angeles, Los Angeles County, CA

  9. Capacitación del personal y de los pacientes en torno a los cuidados terminales

    Cancer.gov

    Al no abordar el tema de la transición de un tratamiento activo para el cáncer a los cuidados en la etapa final de la vida, los médicos pueden desconocer lo que un paciente realmente desea y esto puede ser motivo de angustia para pacientes y familiares. Los investigadores han diseñado programas innovadores para ayudar a médicos y pacientes a mejorar sus habilidades de comunicación y a sentirse más cómodos al hablar de este tema.

  10. Una aproximacin inicial al marco de utilizacin de los modelos en la empresa: los sistemas de informacin ................................. 1

    E-print Network

    Granada, Universidad de

    Contenido CAPÍTULO 1 Una aproximación inicial al marco de utilización de los modelos en la empresa: los sistemas de información ................................. 1 1.1 Consideraciones previas sobre el........................................................... 3 1.2 Los sistemas de información empresariales

  11. The fungal GATA factors

    Microsoft Academic Search

    Claudio Scazzocchio

    2000-01-01

    The DNA-binding domains of eucaryotic GATA factors comprise a four-cysteine Zn finger and an adjacent basic region. Fungal GATA factors regulate nitrogen metabolism, light induction, siderophore biosynthesis and mating-type switching. Hydrophobic interactions determine binding-site specificity. Interactions with other factors may determine promoter specificity. One GATA factor has recently been shown to determine a drastic chromatin rearrangement.

  12. Factor X deficiency

    MedlinePLUS

    Factor X (ten) deficiency is a disorder caused by too little of a protein called factor X in the blood. It leads to problems with ... more of these clotting factors are missing. Factor X deficiency is often caused by a defect in ...

  13. DESARROLLO COGNITIVO HASTA LOS SEIS AÑOS: TEORÍAS EXPLICATIVAS. ETAPAS: CARACTERÍSTICAS Y MOMENTOS MÁS SIGNIFICATIVOS. EL CONOCIMIENTO DE LA REALIDAD, GÉNESIS Y FORMACIÓN DE LOS PRINCIPALES CONCEPTOS. LO COGNITIVO Y EL DESARROLLO INTEGRAL DEL NIÑO. ESTRATEGIAS DE ACTUACIÓN Y RECURSOS. EL DESARROLLO COGNITIVO EN EL CURRÍCULUM DE LA EDUCACIÓN INFANTIL. MEDIDAS DE ATENCIÓN AL ALUMNADO: DÉFICIT Y DISFUNCIONES MÁS FRECUENTES, EL NIÑO Y LA NIÑA SUPERDOTADOS Y EL ROL DEL EDUCADOR

    Microsoft Academic Search

    Yolanda Lirón Ruiz

    2010-01-01

    El niño y la niña desde que nacen poseen unas potencialidades cognitivas dispuestas a desarrollar, de cómo se desarrollen estas capacidades dependerá del tipo y del modo de interacción que mantengan con el medio ambiente. En este artículo vamos a analizar cómo el niño y la niña pasan de una inteligencia práctica a tener una inteligencia intuitiva, es decir, cómo

  14. Cleanup at Los Alamos National Laboratory - the challenges - 9493

    SciTech Connect

    Stiger, Susan G [Los Alamos National Laboratory; Hargis, Kenneth M [Los Alamos National Laboratory; Graham, Michael J [Los Alamos National Laboratory; Rael, George J [NNSL/LASO

    2008-01-01

    This paper provides an overview of environmental cleanup at the Los Alamos National Laboratory (LANL) and some of the unique aspects and challenges. Cleanup of the 65-year old Department of Energy Laboratory is being conducted under a RCRA Consent Order with the State of New Mexico. This agreement is one of the most recent cleanup agreements signed in the DOE complex and was based on lessons learned at other DOE sites. A number of attributes create unique challenges for LANL cleanup -- the proximity to the community and pueblos, the site's topography and geology, and the nature of LANL's on-going missions. This overview paper will set the stage for other papers in this session, including papers that present: Plans to retrieve buried waste at Material Disposal Area B, across the street from oen of Los Alamos' commercial districts and the local newspaper; Progress to date and joint plans with WIPP for disposal of the remaining inventory of legacy transuranic waste; Reviews of both groundwater and surface water contamination and the factors complicating both characterization and remediation; Optimizing the disposal of low-level radioactive waste from ongoing LANL missions; A stakeholder environmental data transparency project (RACER), with full public access to all available information on contamination at LANL, and A description of the approach to waste processing cost recovery from the programs that generate hazardous and radioactive waste at LANL.

  15. Facultad de Derecho A LOS ALUMNOS DE LOS PLANES 1341 Y 1342

    E-print Network

    Islas, León

    Facultad de Derecho A LOS ALUMNOS DE LOS PLANES 1341 Y 1342 GENERACIÓN 2010-1 En relación a la PLANES DE ESTUDIO (1341 ­ 1342): -Derecho penal -Derecho fiscal -Derecho civil -Derecho constitucional -Derecho administrativo Horarios:El horario para la impartición de la especialización será, turno matutino

  16. Significado de los cambios en los senos: Guía para la salud de la mujer

    Cancer.gov

    Información sobre los cambios y padecimientos específicos del seno, y sobre cómo se detectan, diagnostican y tratan estos cambios. Explica que todos los cambios en el seno deben ser revisados por un médico, a pesar de que la mayoría de estos cambios no son cáncer.

  17. E-STAKEHOLDERS: UNA APLICACIÓN DE LA TEORÍA DE LOS STAKEHOLDER A LOS NEGOCIOS ELECTRÓNICOS

    Microsoft Academic Search

    CARLOS HERNÁN GONZÁLEZ CAMPO

    2010-01-01

    En los negocios electrónicos la masifi cación de la personalización o mass customization (por su traducción al inglés), es la principal estrategia de las organizaciones virtuales en su relación con los stakeholders (empleados, accionistas, proveedores y socios), para transformar su identificación, reconocimiento y gestión, de una forma muy diferente a la de una organización tradicional. El presente artículo de reflexión

  18. Status of Monte Carlo at Los Alamos

    SciTech Connect

    Thompson, W.L.; Cashwell, E.D.

    1980-01-01

    At Los Alamos the early work of Fermi, von Neumann, and Ulam has been developed and supplemented by many followers, notably Cashwell and Everett, and the main product today is the continuous-energy, general-purpose, generalized-geometry, time-dependent, coupled neutron-photon transport code called MCNP. The Los Alamos Monte Carlo research and development effort is concentrated in Group X-6. MCNP treats an arbitrary three-dimensional configuration of arbitrary materials in geometric cells bounded by first- and second-degree surfaces and some fourth-degree surfaces (elliptical tori). Monte Carlo has evolved into perhaps the main method for radiation transport calculations at Los Alamos. MCNP is used in every technical division at the Laboratory by over 130 users about 600 times a month accounting for nearly 200 hours of CDC-7600 time.

  19. Los Alamos Explosives Performance Key to Stockpile Stewardship

    SciTech Connect

    Dattelbaum, Dana

    2014-11-03

    As the U.S. Nuclear Deterrent ages, one essential factor in making sure that the weapons will continue to perform as designed is understanding the fundamental properties of the high explosives that are part of a nuclear weapons system. As nuclear weapons go through life extension programs, some changes may be advantageous, particularly through the addition of what are known as "insensitive" high explosives that are much less likely to accidentally detonate than the already very safe "conventional" high explosives that are used in most weapons. At Los Alamos National Laboratory explosives research includes a wide variety of both large- and small-scale experiments that include small contained detonations, gas and powder gun firings, larger outdoor detonations, large-scale hydrodynamic tests, and at the Nevada Nuclear Security Site, underground sub-critical experiments.

  20. SEDs at Los Alamos: A Personal Memoir

    NASA Astrophysics Data System (ADS)

    Bederson, Benjamin

    2001-03-01

    I have written this personal memoir approximately 55 years after the events I describe. It is based almost exclusively on memory, since apart from the diary I kept while on Tinian, I have few documents concerning it. It covers my service in the U.S. Army's Special Engineering Detachment (SED) in Oak Ridge and Los Alamos in 1944-45, on Tinian island, the launching pad for the bombing raids on Japan, in the summer and fall of 1945, and my return to Los Alamos until my discharge in January 1946.

  1. Prácticas de Lectoescritura en los Exvotos

    Microsoft Academic Search

    Maria Eugenia De Luna Villalón

    2008-01-01

    Prácticas de Lectoescritura en los Exvotos\\u000aAbstract\\u000aMaria Eugenia de Luna\\u000aUniversity of Western Ontario\\u000amdelunav@uwo.ca\\u000aEn este trabajo estudio las prácticas de lectoescritura en los exvotos, su producción y usos, tomando en cuenta que las prácticas de lectoescritura nos ayudan a tener una mejor idea del concepto de cómo se unen en la práctica la escritura y la lectura

  2. Electrical Engineering Department Los Angeles, California 90095-1594

    E-print Network

    Chen, Francis F.

    Engineering Department Los Angeles, California 90095-1594 UNIVERSITY OF CALIFORNIA · LOS ANGELES Quiescent of California, Los Angeles, Los Angeles, CA, USA E-mail: mlight@lanl.gov Submitted to: Plasma Sources Sci that the plasma density saturates, and even falls for light ion gases, as the magnetic field is increased

  3. Electrical Engineering Department Los Angeles, California 90095-1594

    E-print Network

    Chen, Francis F.

    Engineering Department Los Angeles, California 90095-1594 UNIVERSITY OF CALIFORNIA · LOS ANGELES Instability Engineering Department, University of California, Los Angeles, California 90095-1594 P. L. Colestock Los, with light gases it has been found that the plasma density saturates, then falls, as the magnetic field

  4. DEFENSORA DE LOS DERECHOS UNIVERSITARIOS INFORME DE ACTIVIDADES

    E-print Network

    Islas, León

    DEFENSORÍA DE LOS DERECHOS UNIVERSITARIOS INFORME DE ACTIVIDADES 2008-2009 En cumplimiento de lo dispuesto por los Artículos 10 del Estatuto de la Defensoría de los Derechos Universitarios y 10 Fracción IX marzo de 2009. En este lapso el Defensor de los Derechos Universitarios fue designado por la Comisión de

  5. DEFENSORA DE LOS DERECHOS UNIVERSITARIOS. INFORME DE ACTIVIDADES

    E-print Network

    Islas, León

    DEFENSORÍA DE LOS DERECHOS UNIVERSITARIOS. INFORME DE ACTIVIDADES 2004-2005 En cumplimiento de lo dispuesto por los Artículos 10 del Estatuto de la Defensoría de los Derechos Universitarios y 10 Fracción IX regularmente, por dudas o situaciones relacionadas principalmente con los concursos de oposición, el derecho de

  6. DEFENSORA DE LOS DERECHOS UNIVERSITARIOS INFORME DE ACTIVIDADES

    E-print Network

    Islas, León

    DEFENSORÍA DE LOS DERECHOS UNIVERSITARIOS INFORME DE ACTIVIDADES 2006-2007 En cumplimiento de lo dispuesto por los Artículos 10 del Estatuto de la Defensoría de los Derechos Universitarios y 10 Fracción IX. Actividades de divulgación de la Defensoría de los Derechos Universitarios, y VIII. Apreciaciones conclusivas

  7. DEFENSORA DE LOS DERECHOS UNIVERSITARIOS INFORME DE ACTIVIDADES

    E-print Network

    Islas, León

    DEFENSORÍA DE LOS DERECHOS UNIVERSITARIOS INFORME DE ACTIVIDADES 2005-2006 En cumplimiento de lo dispuesto por los Artículos 10 del Estatuto de la Defensoría de los Derechos Universitarios y 10 Fracción IX divulgación de la Defensoría de los Derechos Universitarios, y VII. Apreciaciones conclusivas. La segunda

  8. DEFENSORA DE LOS DERECHOS UNIVERSITARIOS INFORME DE ACTIVIDADES

    E-print Network

    Islas, León

    DEFENSORÍA DE LOS DERECHOS UNIVERSITARIOS INFORME DE ACTIVIDADES 2007-2008 En cumplimiento de lo dispuesto por los Artículos 10 del Estatuto de la Defensoría de los Derechos Universitarios y 10 Fracción IX de divulgación de la Defensoría de los Derechos Universitarios, y VIII. Apreciaciones conclusivas. La

  9. LA GESTIÓN DE LOS EVENTOS COMO UN PRODUCTO TURÍSTICO

    Microsoft Academic Search

    Nancy Fernández González; Jorge Luis Borroto Martínez

    2011-01-01

    Los viajes que se producen en el mundo, son realizados por diferentes motivaciones, necesidades e intereses, variables que son de constantes investigaciones y evaluaciones por los actores que intervienen en el proceso del turismo internacional, para poder satisfacerlas, como es el caso de los eventos. Los eventistas viajan motivados por el evento y sus temáticas y pagan por ello pero

  10. John Ash, AIA, Photographer August 1997. CONTEXT VIEW OF LOS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    John Ash, AIA, Photographer August 1997. CONTEXT VIEW OF LOS ANGELES CITY HALL SHOWING SOUTH ELEVATION WITH FIRST STREET PARK AND PARKING LOT IN FOREGROUND, FACING NORTH. - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

  11. Expanded recycling at Los Alamos National Laboratory

    Microsoft Academic Search

    J. F. Betschart; L. Malinauskas; M. Burns

    1996-01-01

    The Pollution Prevention Program Office has increased recycling activities, reuse, and options to reduce the solid waste streams through streamlining efforts that applied best management practices. The program has prioritized efforts based on volume and economic considerations and has greatly increased Los Alamos National Laboratory`s (LANL`s) recycle volumes. The Pollution Prevention Program established and chairs a Solid Waste Management Solutions

  12. Latina Adolescent Childbearing in East Los Angeles.

    ERIC Educational Resources Information Center

    Erickson, Pamela I.

    This book is about teenage pregnancy among Latina teenagers in East Los Angeles (California). It focuses on teenage pregnancy and motherhood among economically disadvantaged Latinas aged 17 and under. The young mothers in this study were participants in a series of intervention efforts to prevent repeat pregnancy at a family planning clinic. This…

  13. | Los Alamos National Laboratory | Environmental Programs

    E-print Network

    of radiological or other hazardous materials. Wildland Fire Management The Laboratory's wildland fire management goals address these threats. Emergency Operations maintains an annual and a five-year wildland fire management plan that responds directly to Los Alamos National Security, LLC and Department of Energy National

  14. La malnutrición en los países desarrollados

    Microsoft Academic Search

    John W. L. Puntis

    2009-01-01

    ResumenEn las sociedades desarrolladas se ha constatado repetidamente que la desnutrición es común en pacientes hospitalizados. A pesar de contribuir a desenlaces adversos, puede pasar inadvertida a menos que se emprenda sistemáticamente una evaluación formal. El equipo de apoyo nutricional desempeña papeles importantes en la formación del personal con respecto a la importancia de la nutrición para todos los pacientes

  15. New Management Thrust at Los Rios

    ERIC Educational Resources Information Center

    Klapstein, Earl L.

    1978-01-01

    Describes the management practices adopted by the Los Rios Community College District (California) as a result of the passage of the Jarvis-Gann tax initiative. Alterations included reorganization of upper management structure, full budget disclosures, collective bargaining, merit pay concept for administrative staff, and the creation of a…

  16. Better Transportation Alternatives for Los Angeles

    Microsoft Academic Search

    THOMAS A. RUBIN; JAMES E. MOORE

    or several decades, the prospect of an urban rail system has been held up to the electorate as the key to mobility and clean air, but even cursory examination of system performance reveals that it is neither. The Los Angeles rail plan is essentially a failed experiment in transit provision, and all refinements and extensions predicated on expanding the rail

  17. REACTIVE HYDROCARBON CONTROL COSTS FOR LOS ANGELES

    EPA Science Inventory

    This report documents the results of a study to determine the costs associated with controlling reactive organic emissions in the Metropolitan Los Angeles Air Quality Control Region. An inventory of organic emissions from 26 categories of stationary and mobile sources was develop...

  18. Los Angeles County Parks and Recreation.

    ERIC Educational Resources Information Center

    Iowa Univ., Iowa City. Recreation Education Program.

    Presented are duplications of the responses given by the Los Angeles County Parks and Recreation Rehabilitation Unit (California) as part of a project to collect, share, and compile information about, and techniques in the operation of 18 community action models for recreation services to the disabled. Model programs are categorized as consumer,…

  19. Los Alamos National Laboratory solar program

    SciTech Connect

    Reisfeld, S.K.; Neeper, D.A.

    1982-01-01

    Progress is reported for passive solar tasks performed at the Los Alamos National Laboratory during FY 1982. Results on test cell experiments for the 1981-1982 winter are reported, as are Class A performance monitoring, passive cooling, both residential and commercial economic cooling assessments, and thermal effects of distributed mass in passive buildings.

  20. INTRODUCCIN El comportamiento territorial en los animales

    E-print Network

    Carrete, Martina

    -AZOR PERDICERA (HIERAAETUS FASCIATUS) Y DEL ÁGUILA REAL (AQUILA CHRYSAETOS) EN LA REGIÓN DE MURCIA. Martina Aquila chrysaetos en la Región de Murcia. En el presente trabajo, analizamos los patrones de distribución el Águila Real Aquila chrysaetos, en la Región de Murcia, sureste de España. Utilizamos dos métodos

  1. Análisis y propuesta de estrategia de desarrollo para la gestión ambiental de los residuos urbanos en los municipios de Andalucía

    Microsoft Academic Search

    Manuel Gómez Barbero; Julio Berbel Vecino

    2003-01-01

    RESUMEN El trabajo presenta un análisis y diagnóstico de la gestión ambiental de los municipios andaluces basados en una muestra amplia de los mismos. Se estudian, medios materiales y humanos así como prioridades políticas de los gestores. Se presta atención a aspectos económicos como son el gasto en gestión de residuos y la financiación de los mismos a través de

  2. Important Water Quality Factors

    NSDL National Science Digital Library

    This site provides basic information about factors commonly analyzed in water quality studies of drinking water, waste water and natural water. The factors are listed alphabetically with descriptions and explanations about what the results of measurements mean in environmental terms.

  3. Factoring Polynomials and Fibonacci.

    ERIC Educational Resources Information Center

    Schwartzman, Steven

    1986-01-01

    Discusses the factoring of polynomials and Fibonacci numbers, offering several challenges teachers can give students. For example, they can give students a polynomial containing large numbers and challenge them to factor it. (JN)

  4. Risk Factors for Scleroderma

    MedlinePLUS

    ... Home For Patients Risk Factors Risk Factors for Scleroderma The cause of scleroderma is still unknown. Scientists ... help find improved therapies and a cure for scleroderma! quick links What is scleroderma? Frequently Asked Questions ...

  5. Commercialization of Los Alamos National Laboratory technologies via small businesses. Final report

    SciTech Connect

    Brice, R.; Cartron, D.; Rhyne, T.; Schulze, M.; Welty, L.

    1997-06-01

    Over the past decade, numerous companies have been formed to commercialize research results from leading U.S. academic and research institutions. Emerging small businesses in areas such as Silicon Valley, Boston`s Route 128 corridor, and North Carolina`s Research Triangle have been especially effective in moving promising technologies from the laboratory bench to the commercial marketplace--creating new jobs and economic expansion in the process. Unfortunately, many of the U.S. national laboratories have not been major participants in this technology/commercialization activity, a result of a wide variety of factors which, until recently, acted against successful commercialization. This {open_quotes}commercialization gap{close_quotes} exists partly due to a lack, within Los Alamos in particular and the DOE in general, of in-depth expertise and experience in such business areas as new business development, securities regulation, market research and the determination of commercial potential, the identification of entrepreneurial management, marketing and distribution, and venture capital sources. The immediate consequence of these factors is the disappointingly small number of start-up companies based on technologies from Los Alamos National Laboratory that have been attempted, the modest financial return Los Alamos has received from these start-ups, and the lack of significant national recognition that Los Alamos has received for creating and commercializing these technologies.

  6. Multilevel Mixture Factor Models

    ERIC Educational Resources Information Center

    Varriale, Roberta; Vermunt, Jeroen K.

    2012-01-01

    Factor analysis is a statistical method for describing the associations among sets of observed variables in terms of a small number of underlying continuous latent variables. Various authors have proposed multilevel extensions of the factor model for the analysis of data sets with a hierarchical structure. These Multilevel Factor Models (MFMs)…

  7. Multiple factor analysis

    Microsoft Academic Search

    L. L. Thurstone

    1931-01-01

    The purpose of the paper is to describe a more generally applicable method of factor analysis which has no restrictions as regards group factors and which does not restrict the number of general factors that are operative in producing the intercorrelation. Applications of the method to different types of correlation problems are suggested.

  8. Mesonic form factors

    Microsoft Academic Search

    Frederic D. R. Bonnet; Robert G. Edwards; George T. Fleming; Randy Lewis; David G. Richards

    2004-01-01

    We have started a program to compute the electromagnetic form factors of mesons. We discuss the techniques used to compute the pion form factor and present preliminary results computed with domain wall valence fermions on MILC asqtad lattices, as well as Wilson fermions on quenched lattices. These methods can easily be extended to ? ? ?? transition form factors.

  9. Mesonic form factors

    Microsoft Academic Search

    Frederic D. R. Bonnet; Robert G. Edwards; George T. Fleming; Randy Lewis; David G. Richards

    2004-01-01

    We have started a program to compute the electromagnetic form factors of mesons. We discuss the techniques used to compute the pion form factor and present preliminary results computed with domain wall valence fermions on MILC asqtad lattices, as well as Wilson fermions on quenched lattices. These methods can easily be extended to varrho --> gammapi transition form factors. This

  10. Mesonic Form Factors

    Microsoft Academic Search

    Frederic D. R. Bonnet; Robert G. Edwards; George T. Fleming; Randal Lewis; David Richards

    2003-01-01

    We have started a program to compute the electromagnetic form factors of mesons. We discuss the techniques used to compute the pion form factor and present preliminary results computed with domain wall valence fermions on MILC asqtad lattices, as well as Wilson fermions on quenched lattices. These methods can easily be extended to rho-to-gamma-pi transition form factors.

  11. Neurobiología de la impulsividad y los trastornos de la conducta alimentaria*

    PubMed Central

    Orozco-Cabal, Luis Felipe; Herin, David

    2009-01-01

    Resumen Introducción La impulsividad es un rasgo de personalidad multidimensional relacionado con el control del comportamiento y las emociones. Está presente de manera diversa en los trastornos de la conducta alimentaria, particularmente, en la bulimia nerviosa (BN). Aunque la relación entre la impulsividad y BN ha sido objeto de numerosas investigaciones, en la actualidad se desconocen los sustratos neurobiológicos de esta relación. Objetivos Discutir críticamente la evidencia que sugiere que las alteraciones en los sistemas neuronales relacio-nados con las funciones ejecutivas, con la formación de preferencias y con la regulación de los estados emocionales sirven como base para el rasgo de personalidad impulsiva, así como su estado en subgrupos de pacientes con BN. Métodos Búsqueda selectiva de la literatura relevante. Resultados y conclusiones Esta discusión ilustra la complejidad de la relación entre la impulsividad y BN, donde la impulsividad actúa como un factor de vulnerabilidad que puede sensibilizar al sujeto con BN a estados emocionales negativos, durante los cuales modifica el impacto de estímulos internos y externos sobre el comportamiento y su regulación, favoreciendo así patrones de comportamiento maladaptativos e inflexibles. PMID:19838321

  12. Situación funcional y social de los octogenarios: estudio poblacional en Martorell

    Microsoft Academic Search

    Alba Aguado Jodar; Sonia Miravet Jimenez; Flora López Simarro; Francisco Mera Cordero; Pilar Oriol Torón; M. Isabel Fuentes Leiva

    2009-01-01

    INTRODUCCIÓN: La población muy envejecida ha experimentado un importante incremento. Su situación funcional tiene importantes repercusiones sobre la calidad de vida y utilización de servicios sociosanitarios.\\u000aOBJETIVOS: Estudiar la situación funcional y social de los octogenarios y factores explicativos asociados a dependencia funcional.\\u000aTIPO DE ESTUDIO: Descriptivo transversal de base poblacional.\\u000aEMPLAZAMIENTO: Municipio urbano de Martorell.\\u000aSUJETOS: Se han incluido

  13. Variability of relative site response at Los Alamos, NM

    SciTech Connect

    House, L.; Phillips, W.S. (Los Alamos National Lab., NM (USA))

    1989-01-01

    To estimate the range of seismic response at low strain of sites within Los Alamos National Laboratory, ground motion recordings were obtained at 13 sites from nuclear tests carried out in Nevada. The sites are distributed within a 10 X 10 km area. The ground motions recorded at each site were conceptually modelled as the result of source, path, and site contributions. Because almost all of the paths are in common, the variations seen for each source can be attributed to site response. The sites were monitored in various combinations with seven nuclear tests; each site recorded only a few of the tests. Because horizontal ground motion is more important for structural engineering and was larger than the vertical, we focused on horizontal site response. The range of relative site response seen is about a factor of 5 to 6 at 1.5 Hz. Topography has a strong effect on response, with sites in canyons being a factor of 3 to 4 lower than nearby sites on mesas. Increased depth to seismic basement beneath some stations also correlates with higher relative site response. Relative site response does not obviously correlate with variation of seismic velocities in the near surface (e.g. upper few meters). 5 refs., 4 figs.

  14. Aerostructural safety factor criteria

    NASA Technical Reports Server (NTRS)

    Verderaime, V.

    1992-01-01

    The present modification of the conventional safety factor method for aircraft structures evaluation involves the expression of deterministic safety factors in probabilistic tolerance limit ratios; these are found to involve a total of three factors that control the interference of applied and resistive stress distributions. The deterministic expression is extended so that it may furnish a 'relative ultimate safety' index that encompasses all three distribution factors. Operational reliability is developed on the basis of the applied and the yield stress distribution interferences. Industry standards are suggested to be derivable from factor selections that are based on the consequences of failure.

  15. Citocinas inflamatorias y factores de reparación en los músculos intercostales de pacientes con EPOC grave

    Microsoft Academic Search

    Carme Casadevall; Carlos Coronell; Pilar Ausín; Juana Martínez-Llorens; Mauricio Orozco-Levi; Esther Barreiro; Joaquim Gea

    2009-01-01

    ObjectiveThere is disagreement regarding the local action of cytokines in the respiratory muscles of patients with chronic obstructive pulmonary disease (COPD). The objective of this study was to analyze the relationships between cytokine expression and genetic activation of the mechanisms of muscle repair.

  16. Water Supply at Los Alamos during 1997

    SciTech Connect

    M. N. Maes; S. G. McLin; W. D. Purtymun

    1998-12-01

    Production of potable municipal water supplies during 1997 totaled about 1,285.9 million gallons from wells in the Guaje, Pajarito, and Otowi well fields. There was no water used from the spring gallery in Water Canyon or from Guaje Reservoir during 1997. About 2.4 million gallons of water from Los Alamos Reservoir was used to irrigate public parks and recreational lands. The total water usage in 1997 was about 1,288.3 million gallons, or about 135 gallons per day per person living in Los Alamos County. Groundwater pumpage was down about 82.2 million gallons in 1997 compared with the pumpage in 1996. Four new replacement wells were drilled and cased in Guaje Canyon between October 1997 and March 1998. These wells are currently being developed and aquifer tests are being performed. A special report summarizing the geological, geophysical, and well construction logs will be issued in the near future for these new wells.

  17. Nuclear Forensics at Los Alamos National Laboratory

    SciTech Connect

    Podlesak, David W [Los Alamos National Laboratory; Steiner, Robert E. [Los Alamos National Laboratory; Burns, Carol J. [Los Alamos National Laboratory; LaMont, Stephen P. [Los Alamos National Laboratory; Tandon, Lav [Los Alamos National Laboratory

    2012-08-09

    The overview of this presentation is: (1) Introduction to nonproliferation efforts; (2) Scope of activities at Los Alamos National Laboratory; (3) Facilities for radioanalytical work at LANL; (4) Radiochemical characterization capabilities; and (5) Bulk chemical and materials analysis capabilities. Some conclusions are: (1) Analytical chemistry measurements on plutonium and uranium matrices are critical to numerous defense and non-defense programs including safeguards accountancy verification measurements; (2) Los Alamos National Laboratory operates capable actinide analytical chemistry and material science laboratories suitable for nuclear material forensic characterization; (3) Actinide analytical chemistry uses numerous means to validate and independently verify that measurement data quality objectives are met; and (4) Numerous LANL nuclear facilities support the nuclear material handling, preparation, and analysis capabilities necessary to evaluate samples containing nearly any mass of an actinide (attogram to kilogram levels).

  18. Los Angeles City Archives, 1836-1872

    NSDL National Science Digital Library

    Long before the brights lights of Hollywood or the sparking majesty of the Griffith Observatory, Los Angeles was a much smaller place. This engaging collection of documents from the Los Angeles City Archives offers some insights into the city from 1836 to 1872. The collection was digitized as part of the USC Digital Library,and it contains original land grants, maps, and early city ordinances. Visitors can look at the items individually or look into the specific collections. As one might imagine, many of the documents are in Spanish, but they do include English translations. Persons with a penchant for handwriting and signatures will want to look at the dramatic flourishes of Bacilio Valdez, Guillermo Chard, and other men of property who signed off a range of documents during this tumultuous period of growth.

  19. Water supply at Los Alamos during 1992

    SciTech Connect

    Purtymun, W.D.; McLin, S.G.; Stoker, A.K.; Maes, M.N.

    1995-09-01

    Municipal potable water supply during 1992 was 1,516 {times} 10{sup 6} gallons from wells in the Guaje and Pajarito well fields. About 13 {times} 10{sup 6} gallons were pumped from the Los Alamos Well Field and used in the construction of State Road 501 adjacent to the Field. The last year the Las Alamos Field was used for municipal supply was 1991. The nonpotable water supply used for steam plant support was about 0.12 {times} 10{sup 6} gallons from the spring gallery in Water Canyon. No nonpotable water was used for irrigation from Guaje and Los Alamos Reservoirs. Thus, the total water usage in 1992 was about 1,529 {times} 10{sup 6} gallons. Neither of the two new wells in the Otowi Well Field were operational in 1992.

  20. Facilitating LOS Debriefings: A Training Manual

    NASA Technical Reports Server (NTRS)

    McDonnell, Lori K.; Jobe, Kimberly K.; Dismukes, R. Key

    1997-01-01

    This manual is a practical guide to help airline instructors effectively facilitate debriefings of Line Oriented Simulations (LOS). It is based on a recently completed study of Line Oriented Flight Training (LOFT) debriefings at several U.S. airlines. This manual presents specific facilitation tools instructors can use to achieve debriefing objectives. The approach of the manual is to be flexible so it can be tailored to the individual needs of each airline. Part One clarifies the purpose and objectives of facilitation in the LOS setting. Part Two provides recommendations for clarifying roles and expectations and presents a model for organizing discussion. Part Tree suggests techniques for eliciting active crew participation and in-depth analysis and evaluation. Finally, in Part Four, these techniques are organized according to the facilitation model. Examples of how to effectively use the techniques are provided throughout, including strategies to try when the debriefing objectives are not being fully achieved.

  1. The Los Alamos accelerator code group

    SciTech Connect

    Krawczyk, F.L.; Billen, J.H.; Ryne, R.D.; Takeda, Harunori; Young, L.M.

    1995-05-01

    The Los Alamos Accelerator Code Group (LAACG) is a national resource for members of the accelerator community who use and/or develop software for the design and analysis of particle accelerators, beam transport systems, light sources, storage rings, and components of these systems. Below the authors describe the LAACG`s activities in high performance computing, maintenance and enhancement of POISSON/SUPERFISH and related codes and the dissemination of information on the INTERNET.

  2. Los Alamos Novel Rocket Design Flight Tested

    ScienceCinema

    Tappan, Bryce

    2015-01-05

    Los Alamos National Laboratory scientists recently flight tested a new rocket design that includes a high-energy fuel and a motor design that also delivers a high degree of safety. Researchers will now work to scale-up the design, as well as explore miniaturization of the system, in order to exploit all potential applications that would require high-energy, high-velocity, and correspondingly high safety margins.

  3. Los Alamos Team Demonstrates Bottle Scanner Technology

    ScienceCinema

    Espy, Michelle; Schultz, Larry

    2014-06-02

    Los Alamos scientists are demonstrating a Nuclear Magnetic Resonance Imaging (NMR) technology that may provide a breakthrough for screening liquids at airport security. By adding low-power X-ray data to the NMR mix, scientists believe they have unlocked a new detection technology. Funded in part by the Department of Homeland Security's Science and Technology Directorate, the new technology is called MagRay.

  4. Job Listings - Los Alamos National Laboratory

    NSDL National Science Digital Library

    Los Alamos National Laboratory is a premier national security research institution, delivering scientific and engineering solutions for the nation's most crucial and complex problems. Our primary responsibility is ensuring the safety, security, and reliability of the nation's nuclear deterrent. In addition to supporting the Lab's core national security mission, our work advances bioscience, chemistry, computer science, earth and environmental sciences, materials science, and physics disciplines.

  5. Los Alamos Team Demonstrates Bottle Scanner Technology

    SciTech Connect

    Espy, Michelle; Schultz, Larry

    2014-05-06

    Los Alamos scientists are demonstrating a Nuclear Magnetic Resonance Imaging (NMR) technology that may provide a breakthrough for screening liquids at airport security. By adding low-power X-ray data to the NMR mix, scientists believe they have unlocked a new detection technology. Funded in part by the Department of Homeland Security's Science and Technology Directorate, the new technology is called MagRay.

  6. Los Alamos transuranic waste size reduction facility

    SciTech Connect

    Briesmeister, A.; Harper, J.; Reich, B.; Warren, J.L.

    1982-01-01

    To facilitate disposal of transuranic (TRU) waste, Los Alamos National Laboratory designed and constructed the Size Reduction Facility (SRF) during the period 1977 to 1981. This report summarizes the engineering development, installation, and early test operations of the SRF. The facility incorporates a large stainless steel enclosure fitted with remote handling and cutting equipment to obtain an estimated 4:1 volume reduction of gloveboxes and other bulky metallic wastes.

  7. Los Alamos transuranic waste size reduction facility

    SciTech Connect

    Briesmeister, A.; Harper, J.; Reich, B.; Warren, J.L.

    1982-01-01

    A transuranic (TRU) Waste Size Reduction Facility (SRF) was designed and constructed at the Los Alamos National Laboratory during the period of 1977 to 1981. This paper summarizes the engineering development, installation, and early test operations of the SRF. The facility incorporates a large stainless steel enclosure fitted with remote handling and cutting equipment to obtain an estimated 4:1 volume reduction of gloveboxes and other bulky metallic wastes.

  8. Mire, la democracia boliviana, en los hechos

    Microsoft Academic Search

    Roberto Laserna

    Resumen:La idea de que Bolivia vive un proceso de fortalecimiento de la democracia, representada por el ascenso de Evo Morales Ayma, un dirigente sindical campesino de origen aymara, a la presidencia, está escondiendo no solamente el hecho de que su gobierno es la culminación de un largo proceso histórico, sino que también oculta los riesgos del rentismo petrolero, del caudillismo

  9. El justiprecio expropiatorio en los Países Bajos

    Microsoft Academic Search

    Demetrio Muñoz Gielen

    1970-01-01

    La plusvalía urbanística en los Países Bajos pertenece al propietario del suelo. La legislación\\u000aexpropiatoria es coherente con este principio al reconocer al propietario el derecho a un\\u000ajustiprecio que incluye la revalorización del suelo originada por su futuro uso. Desde finales de\\u000alos 80, cuando la Administración Pública dejó de practicar masivamente políticas activas de\\u000asuelo y vivienda social,

  10. Water supply at Los Alamos during 1989

    Microsoft Academic Search

    A. K. Stoker; S. G. McLin; W. D. Purtymun; M. N. Maes; B. G. Hammock

    1992-01-01

    Municipal and industrial water supply during 1989 was 1686 à 10⁶ gal. from wells in three fields, and 23 à 10⁶ ga. from the spring gallery in Water Canyon. About 4.6 à 10⁶ gal. of water from the Guaje Reservoir and 3.3 à 10⁶ gal. from the Los Alamos Reservoir were used for irrigation; thus, the total water usage in

  11. Los Alamos National Laboratory Building Cost Index

    SciTech Connect

    Orr, H.D.; Lemon, G.D.

    1983-01-01

    The Los Alamos National Laboratory Building Cost Index indicates that actual escalation since 1970 is near 10% per year. Therefore, the Laboratory will continue using a 10% per year escalation rate for construction estimates through 1985 and a slightly lower rate of 8% per year from 1986 through 1990. The computerized program compares the different elements involved in the cost of a typical construction project, which for our purposes, is a complex of office buildings and experimental laboratores. The input data used in the program consist primarily of labor costs and material and equipment costs. The labor costs are the contractural rates of the crafts workers in the Los Alamos area. For the analysis, 12 field-labor draft categories are used; each is weighted corresponding to the labor craft distribution associated with the typical construction project. The materials costs are current Los Alamos prices. Additional information sources include material and equipment quotes obtained through conversations with vendors and from trade publications. The material and equipment items separate into 17 categories for the analysis and are weighted corresponding to the material and equipment distribution associated with the typical construction project. The building cost index is compared to other national building cost indexes.

  12. Los Alamos National Laboratory building cost index

    SciTech Connect

    Orr, H.D.; Lemon, G.D.

    1982-10-01

    The Los Alamos National Laboratory Building Cost Index indicates that actual escalation since 1970 is near 10% per year. Therefore, the Laboratory will continue using a 10% per year escalation rate for construction estimates through 1985 and a slightly lower rate of 8% per year from 1986 through 1990. The computerized program compares the different elements involved in the cost of a typical construction project, which for our purposes, is a complex of office buildings and experimental laboratories. The input data used in the program consist primarily of labor costs and material and equipment costs. The labor costs are the contractual rates of the crafts workers in the Los Alamos area. For the analysis, 12 field-labor craft categories are used; each is weighted corresponding to the labor craft distribution associated with the typical construction project. The materials costs are current Los Alamos prices. Additional information sources include material and equipment quotes obtained through conversations with vendors and from trade publications. The material and equipment items separate into 17 categories for the analysis and are weighted corresponding to the material and equipment distribution associated with the typical construction project. The building cost index is compared to other national building cost indexes.

  13. Exploration geochemistry: The Los Alamos experience

    SciTech Connect

    Maassen, L.W.; Bolivar, S.L.

    1989-01-01

    Los Alamos National Laboratory became actively involved in geochemical exploration in 1975 by conducting a reconnaissance-scale exploration program for uranium as part of the National Uranium Resource Evaluation program. Initially, only uranium and thorium were analyzed. By 1979 Los Alamos was analyzing a multielement suite. The data were presented in histograms and as black and white concentration plots for uranium and thorium only. Data for the remaining elements were presented as hard copy data listings in an appendix to the report. In 1983 Los Alamos began using exploration geochemistry for the purpose of finding economic mineral deposits to help stimulate the economies of underdeveloped countries. Stream-sediment samples were collected on the Caribbean island of St. Lucia and a geochemical atlas of that island was produced. The data were statistically smoothed and presented as computer-generated color plots of each element of the multielement suite. Studies for the US Bureau of Land Management in 1984 consisted of development of techniques for the integration of several large data sets, which could then be used for computer-assisted mineral resource assessments. A supervised classification technique was developed which compares the attributes of grid cells containing mines or mineral occurrences with attributes of unclassified cells not known to contain mines or occurrences. Color maps indicate how closely unclassified cells match in attributes the cells with mines or occurrences. 20 refs., 1 fig., 1 tab.

  14. Factors Promoting Academic Success among African American and White Male Community College Students

    ERIC Educational Resources Information Center

    Perrakis, Athena I.

    2008-01-01

    This study seeks to isolate factors associated with academic success, operationalized as grade point average (GPA) and course completion, among two male student populations within the Los Angeles Community College District (LACCD): African American and white men. In order to determine the factors that are associated with academic success, two…

  15. Exploratory Bi-Factor Analysis

    ERIC Educational Resources Information Center

    Jennrich, Robert I.; Bentler, Peter M.

    2011-01-01

    Bi-factor analysis is a form of confirmatory factor analysis originally introduced by Holzinger. The bi-factor model has a general factor and a number of group factors. The purpose of this article is to introduce an exploratory form of bi-factor analysis. An advantage of using exploratory bi-factor analysis is that one need not provide a specific…

  16. Form factors: Experimental Progress

    NASA Astrophysics Data System (ADS)

    Jones, Mark

    2004-10-01

    A review of experiments which measured nucleon electromagnetic form factors since the early 1990's will be presented. Before 1990, the form factors were predominantly extracted from elastic electron-proton and electron-deuteron cross section measurements. The lack of a free neutron target made measurement of the neutron form factors much more difficult than the proton form factors. New facilities and experimental techniques were needed to make precision measurement of the neutron form factor and extend precision measurement of the proton electric form factor to four-momentum transfer squared, Q^2, greater than 1 GeV^2. New accelerator facilities, such as Mainz Microtron and Jefferson Lab Continuous Electron Beam Accelerator, have produced high current and high duty factor electron beams with large polarizations. The high-duty factor beam made precision coincidence experiments feasible for quasi-free scattering on deuteron. Using the polarized electron beam, experiments measured the recoil polarization of the outgoing nucleon in elastic electron-proton scattering and quasi-free electron-deuteron scattering and were able to extract the electric form factor. Advances in polarized deuteron and helium targets have facilitated beam-target asymmetry measurements from which neutron form factors can be extracted. Theoretical advances have enabled understanding of knockout of the neutron in electron-deuteron scattering and quasi-free electron-^3He scattering. Using these calculations, kinematics are selected which maximize the sensitivity to neutron form factor while minimizing the effects of the reaction mechanism which are calculable in the theory. All these advances have combined to improve the precision and expand the Q^2 range of our knowledge of nucleon electromagnetic form factors. The data provides a strong baseline for testing theoretical models of the nucleon structure.

  17. TABLA DE ADAPTACIN DERECHO DE LOS NEGOCIOS Y LITIGACIN INTERNACIONAL

    E-print Network

    Rey Juan Carlos, Universidad

    TABLA DE ADAPTACIÓN DERECHO DE LOS NEGOCIOS Y LITIGACIÓN INTERNACIONAL Plan Antiguo (Máster Oficial Derecho de los Negocios y Litigación Internacional) RD 56/2005 Plan Nuevo (Máster Universitario en Derecho

  18. Los biocombustibles y el futuro - Duration: 84 seconds.

    NASA Video Gallery

    ¿Cómo podremos utilizar los biocombustibles en el futuro? La ingeniera aeroespacial de la NASA, Diana Centeno Gómez nos explica el futuro de los biocombustibles y cómo un día podrías trabajar con d...

  19. Los Angeles County Poor Farm, Patient Wards 201, 202, 203, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Los Angeles County Poor Farm, Patient Wards 201, 202, 203, 204, 205, 206, 207, 208 & 209 - Type A Plan, 7601 Imperial Highway; bounded by Esperanza Street, Hawthorn Avenue, Laurel Street, and Descanso Street, Downey, Los Angeles County, CA

  20. Los Angeles County Poor Farm, Patient Ward Nos. 210 & ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Los Angeles County Poor Farm, Patient Ward Nos. 210 & 211 - Type B Plan, 7601 Imperial Highway; bounded by Esperanza Street, Laurel Street, Flores Street, and Descanso Street, Downey, Los Angeles County, CA

  1. Meson electromagnetic form factors

    E-print Network

    Stanislav Dubnicka; Anna Z. Dubnickova

    2012-10-23

    The electromagnetic structure of the pseudoscalar meson nonet is completely described by the sophisticated Unitary&Analytic model, respecting all known theoretical properties of the corresponding form factors.

  2. Factor IX assay

    MedlinePLUS

    ... one of the substances involved in blood clotting (coagulation). ... deficiency of factor IX (hemophilia B) Disseminated intravascular coagulation ( DIC ) Fat malabsorption Liver disease (such as cirrhosis ) ...

  3. Factor VII assay

    MedlinePLUS

    ... one of the substances involved in blood clotting (coagulation). ... to: Congenital deficiency of factor VII Disseminated intravascular coagulation ( DIC ) Fat malabsorption Liver disease (such as cirrhosis ) ...

  4. Analytic Couple Modeling Introducing Device Design Factor, Fin Factor, Thermal Diffusivity Factor, and Inductance Factor

    NASA Technical Reports Server (NTRS)

    Mackey, Jon; Sehirlioglu, Alp; Dynys, Fred

    2014-01-01

    A set of convenient thermoelectric device solutions have been derived in order to capture a number of factors which are previously only resolved with numerical techniques. The concise conversion efficiency equations derived from governing equations provide intuitive and straight-forward design guidelines. These guidelines allow for better device design without requiring detailed numerical modeling. The analytical modeling accounts for factors such as i) variable temperature boundary conditions, ii) lateral heat transfer, iii) temperature variable material properties, and iv) transient operation. New dimensionless parameters, similar to the figure of merit, are introduced including the device design factor, fin factor, thermal diffusivity factor, and inductance factor. These new device factors allow for the straight-forward description of phenomenon generally only captured with numerical work otherwise. As an example a device design factor of 0.38, which accounts for thermal resistance of the hot and cold shoes, can be used to calculate a conversion efficiency of 2.28 while the ideal conversion efficiency based on figure of merit alone would be 6.15. Likewise an ideal couple with efficiency of 6.15 will be reduced to 5.33 when lateral heat is accounted for with a fin factor of 1.0.

  5. SOCIOLOGICAL METHODS & RESEARCHRaftery / BAYES FACTORS Bayes Factors and BIC

    E-print Network

    Raftery, Adrian

    SOCIOLOGICAL METHODS & RESEARCHRaftery / BAYES FACTORS Bayes Factors and BIC Comment on "A Critique for Bayes factors. I thank Weakliem for bringingthissubtlebutimportanttopictotheattentionofsociologists. In 1986, I proposed replacing P values by Bayes factors as the basis for hypothesis testing and model

  6. View of substructure of Sixth Street Bridge overcrossing of Los ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of substructure of Sixth Street Bridge overcrossing of Los Angeles River. Looking west. Note dark hole at lower with is access ramp to river channel seen in HAER CA-176-56 - Sixth Street Bridge, Spanning 101 Freeway at Sixth Street, Los Angeles, Los Angeles County, CA

  7. LOS RECURSOS ADMINISTRATIVOS TRIBUTARIOS. PERSPECTIVAS DESDE SU REGULACIÓN JURÍDICA

    Microsoft Academic Search

    Alba Rosa Pupo Kairuz; Rosa Alba Pupo Kairuz

    2012-01-01

    El presente trabajo esta enfocado a atemperar la actividad probatoria en la tramitación de procesos administrativos a las tendencias que existen en el mundo y a tenor de los conflictos tributarios, que hacen inminente una buena práctica de los medios de prueba tradicionalmente conocidos, así como adecuarlos a las particularidades de los procedimientos tributarios. El análisis que hemos realizado es

  8. Creencias y actitudes hacia la hipnosis de los psicólogos españoles

    Microsoft Academic Search

    M. Elena Mendoza; Antonio Capafons; Begoña Espejo; Doris Montalvo

    2009-01-01

    El objetivo de este estudio es analizar las creencias y actitudes hacia la hipnosis de los colegia- dos para informar al Consejo General de Colegios Oficiales de Psicólogos de las necesidades de formación sobre hipnosis, así como analizar las respuestas en función de los Colegios de los par- ticipantes. Para ello se aplicó la Escala de Valencia de Actitudes y

  9. La contribucin de los materiales plsticos al desarrollo sostenible

    E-print Network

    Escolano, Francisco

    La contribución de los materiales plásticos al desarrollo sostenible I Congreso de estudiantes de al desarrollo sostenible / 14 Abril 2010 #12;3 · PlasticsEurope es la asociación pan- europea de los desarrollo sostenible / 14 Abril 2010 #12;4 Mercado Mundial de Plásticos La contribución de los materiales

  10. Los estudios clnicos y la medicina complementaria y alternativa

    E-print Network

    Baker, Chris I.

    enfermedades y trastornos. La participación en los estudios clínicos tiene riesgos y beneficios. El gobierno atención sanitaria y contribuye a la comprensión de las enfermedades y los trastornos (por ejemplo, la: Estudios sobre tratamientos someten a prueba los tratamientos para una determinada enfermedad o trastorno

  11. Análisis comparado de los contratos marco para operaciones con derivados

    Microsoft Academic Search

    Iván Eduardo Rozo; Lina Maria Contreras; Laura Maria Gallego

    2010-01-01

    En teoría, las operaciones con derivados son instrumentos financieros cuyo propósito es cubrir los riesgos sobre los flujos a recibir, no obstante un contrato de esta naturaleza que presente vacíos o no cuente con provisiones suficientes, puede generar riesgos adicionales y costos de transacción aún mayores a los que se intentaba mitigar inicialmente. De acuerdo con lo anterior, este documento

  12. COMPORTAMIENTO DE LOS ÍNDICES ECONÓMICOS DE LA MAQUINARIA AGRÍCOLA

    Microsoft Academic Search

    Johann Mejías Brito; Héctor Pupo Leyva; José Martínez Grave de Peralta

    2012-01-01

    La eficacia de la mecanización de los trabajos y la reducción del costo de los productos agrícolas depende considerablemente del nivel de utilización del parque de tractores y máquinas. El índice que más ampliamente refleja el grado de perfección técnica, las condiciones de trabajo y el nivel de utilización del agregado lo constituyen los gastos directos de explotación por unidad

  13. Impacto de los nuevos trenes AVE sobre la movilidad

    Microsoft Academic Search

    Juan Carlos Martín; Gustavo Nombela

    2008-01-01

    Este trabajo analiza los impactos de la nueva red de alta velocidad que se está construyendo en España. A partir de la estimación de un logit multinomial se calculan elasticidades con respecto a variables fundamentales (tiempo de viaje, frecuencia y precio). Los resultados indican que las decisiones de los individuos dependen de forma importante del tiempo de viaje, por lo

  14. EUROMAYORES: USOS DE INTERNET SEGÚN LOS DISTINTOS ÁMBITOS DE RESIDENCIA

    Microsoft Academic Search

    FRANCISCO PAVÓN RABASCO

    1. INTRODUCCIÓN Cuando en estos momentos de comienzo de año nos ponemos a escuchar todos los mensajes que nos vienen de los medios de comunicación, encontramos un discurso dirigido a todos de necesidad de adaptarnos rápidamente al euro, la nueva moneda que vamos a tener que utilizar los europeos. Se comenta que el pueblo está respondiendo con bastante aceptación y

  15. Space Radar Image of Los Angeles, California

    NASA Technical Reports Server (NTRS)

    1994-01-01

    This is a radar image of Los Angeles, California, taken on October 2, 1994. Visible in the image are Long Beach Harbor at the bottom right (south corner of the image), Los Angeles International Airport at the bottom center, with Santa Monica just to the left of it and the Hollywood Hills to the left of Santa Monica. Also visible in the image are the freeway systems of Los Angeles, which appear as dark lines. The San Gabriel Mountains (center top) and the communities of San Fernando Valley, Simi Valley and Palmdale can be seen on the left-hand side. This image was acquired by the Spaceborne Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on its 24th orbit. The image is centered at 34 degrees north latitude, 118 degrees west longitude. The area shown is approximately 100 kilometers by 52 kilometers (62 miles by 32 miles). This single-frequency SIR-C image was obtained by the L-band (24 cm) radar channel, horizontally transmitted and received. Portions of the Pacific Ocean visible in this image appear very dark as do freeways and other flat surfaces such as the airport runways. Mountains in the image are dark grey, with brighter patches on the mountain slopes, which face in the direction of the radar illumination (from the top of the image). Suburban areas, with the low-density housing and tree-lined streets that are typical of Los Angeles, appear as lighter grey. Areas with high-rise buildings, such as downtown Los Angeles, appear in very bright white, showing a higher density of housing and streets which run parallel to the radar flight track. Scientists hope to use radar image data from SIR-C/X-SAR to map fire scars in areas prone to brush fires, such as Los Angeles. In this image, the Altadena fire area is visible in the top center of the image as a patch of mountainous terrain which is slightly darker than the nearby mountains. Using all the radar frequency and polarization images provided by SIR-C/X-SAR, scientists will be able to discern these areas even more clearly. Space Imaging Radar-C and X-band Synthetic Aperture Radar (SIR-C/X-SAR) is part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. SIR-C/X-SAR uses three microwave wavelengths: the L-band (24 cm), C-band (6 cm) and X-band (3 cm). The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing. The SIR-C/X-SAR data, complemented by aircraft and ground studies, will give scientists clearer insights into those environmental changes which are caused by nature and those changes which are induced by human activity. SIR-C was developed by NASA's Jet Propulsion Laboratory. X-SAR was developed by the Dornier and Alenia Spazio companies for the German space agency, Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA), and the Italian space agency, Agenzia Spaziale Italiana (ASI), with the Deutsche Forschungsanstalt fuer Luft und Raumfahrt e.V.(DLR), the major partner in science, operations and data processing of X-SAR.

  16. Exogenous Factors and Psoriasis

    Microsoft Academic Search

    E. Dika; H. I. Maibach

    2004-01-01

    Psoriasis is a chronic relapsing disease characterized by variable clinical features. Several factors may exacerbate its manifestations, or even trigger the disease, such as traumatic injury to the skin, physical and psychological stress, cold weather, excessive alcohol intake, and drugs such as lithium and beta-blockers. We describe the most common features of psoriasis and the exogenous factors that may induce,

  17. Square form factorization

    NASA Astrophysics Data System (ADS)

    Gower, Jason E.; Wagstaff, Samuel S., Jr.

    2008-03-01

    We present a detailed analysis of SQUFOF, Daniel Shanks' Square Form Factorization algorithm. We give the average time and space requirements for SQUFOF. We analyze the effect of multipliers, either used for a single factorization or when racing the algorithm in parallel.

  18. Vitiligo – Exogenous Factors

    Microsoft Academic Search

    Hagit Matz; Ethel Tur

    2004-01-01

    Vitiligo is an acquired depigmentary disorder of the skin that results from the selective destruction of melanocytes. The etiology of vitiligo is poorly understood. There appears to be a genetic predisposition, but additional factors are probably involved. The purpose of this article is to outline the factors that might play a role in the development of vitiligo. These include trauma

  19. Recombinant growth factors

    Microsoft Academic Search

    Lawrence T. Goodnough; Kenneth C. Anderson

    1995-01-01

    Recombinant human growth factors are expected to have a significant impact on the use of allogeneic blood components. For example, subsequent to the approval of recombinant human erythropoietin, blood transfusions in renal dialysis patients declined substantially.1 Likewise, myeloid growth factors have reduced infections and hospital stay by promoting hematologic recovery after high dose ablative chemotherapy. The high costs of these

  20. Learning with Matrix Factorizations

    E-print Network

    Srebro, Nathan

    Learning with Matrix Factorizations Nati Srebro Department of Electrical Engineering and Computer Reduction yy u V' YY datadata U titles users titles � #12;Matrix Factorization V' YY datadata U X rank k ­ Clustering as an extreme (when rows of U sparse) · Unconstrained: Low Rank Approximation #12;Matrix

  1. Overview of environmental factors

    NASA Technical Reports Server (NTRS)

    Purvis, C. K.

    1989-01-01

    The orbital environment is complex, dynamic, and comprised of both natural and system-induced components. Several environment factors are important for materials. Materials selection/suitability determination requires consideration of each and all factors, including synergisms among them. Understanding and evaluating these effects will require ground testing, modeling, and focused flight experimentation.

  2. Los Alamos National Laboratory computer benchmarking 1982

    SciTech Connect

    Martin, J.L.

    1983-06-01

    Evaluating the performance of computing machinery is a continual effort of the Computer Research and Applications Group of the Los Alamos National Laboratory. This report summarizes the results of the group's benchmarking activities performed between October 1981 and September 1982, presenting compilation and execution times as well as megaflop rates for a set of benchmark codes. Tests were performed on the following computers: Cray Research, Inc. (CRI) Cray-1S; Control Data Corporation (CDC) 7600, 6600, Cyber 73, Cyber 825, Cyber 835, Cyber 855, and Cyber 205; Digital Equipment Corporation (DEC) VAX 11/780 and VAX 11/782; and Apollo Computer, Inc., Apollo.

  3. Materials accounting at Los Alamos National Laboratory

    SciTech Connect

    Roberts, N.J.; Erkkila, B.H.; Kelso, H.F.

    1985-07-20

    The materials accounting system at Los Alamos has evolved from an ''80-column'' card system to a very sophisticated near-real-time computerized nuclear material accountability and safeguards system (MASS). The present hardware was designed and acquired in the late 70's and is scheduled for a major upgrade in fiscal year 1986. The history of the system from 1950 through the DYMAC of the late 70's up to the present will be discussed. The philosophy of the system along with the details of the system will be covered. This system has addressed the integrated problems of management, control, and accounting of nuclear material successfully. 8 refs., 3 figs., 1 tab.

  4. Natural History Museum of Los Angeles County

    NSDL National Science Digital Library

    The web site of the Natural History Museum of Los Angeles County, which conserves, interprets, and holds in trust collections of objects from nature and human history for the purpose of advancing knowledge and enabling people to appreciate their natural and cultural heritage. Site materials include links to online exhibits, arranged by topic (animals, history and culture, rocks and fossils, and others); information on the museum's physical exhibits, past and present; and information on its research programs and collections. The education page provides teachers with lesson plans and other curriculum materials, a newsletter, and tips for visiting the museum. Other materials include news articles and event announcements, membership information, and job postings.

  5. Los Angeles Public Library-Travel Posters

    NSDL National Science Digital Library

    If you want to visit Amelie-les-Bains or Bali and are light on travel funds, you might consider the travel posters offered here, courtesy of the Los Angeles Public Library. Recently, they embarked on a digitization project that included these very wonderful historic travel posters. All told, there are 89 posters in this collection and they document everywhere from Boston, England to the Antilles. Visitors can zoom in close for a better look and the details on each work are quite exquisite. It's a reminder of a different era of travel and persons with an interest in graphic design, material culture, tourism, and other fields will find much to enjoy here.

  6. Los Angeles Examiner Collection, 1920-1961

    NSDL National Science Digital Library

    2013-01-01

    This massive collection from the University of Southern California's Digital Library brings together approximately 1.4 million prints and negatives from the Los Angeles Examiner newspaper. The paper shut down in 1962 when it merged with the afternoon Herald-Express. The collection is divided into two sub-collections: Prints and Negatives. Almost every major and minor event during the time period is represented here. Visitors can get started by browsing through a few suggested topics such as communism, divorces, adoption and orphans, and the Korean War. Visitors can also type in key geographical locales such as West Hollywood, Griffith Observatory, and Olvera Street to find a wide range of images.

  7. MetaHollywood: Los Angeles Times

    NSDL National Science Digital Library

    Where better to learn about Hollywood's technical and business side than the Los Angeles Times' MetaHollywod site? The site is divided into four sections. Center Stage is an in-depth report on a single feature (a report on the creation of the special effects for the upcoming movie "The Peacemaker," at this time). Digital News discusses the latest developments in media technology news. Tools and Toys covers relevant software, hardware, animation, sound, and other product news. Industry Buzz covers relevant events and conferences. Coverage is from Millimeter Magazine, Animation, and Electronic Media, as well as the Times.

  8. Experience with confirmation measurement at Los Alamos

    SciTech Connect

    Marshall, R.S.; Wagner, R.P.; Hsue, F.

    1985-01-01

    Confirmation measurements are used at Los Alamos in support of incoming and outgoing shipment accountibility and for support of both at /sup 235/U and Pu inventories. Statistical data are presented to show the consistency of measurements on items of identical composition and on items measured at two facilitis using similar instruments. A description of confirmation measurement techniques used in support of /sup 235/U and Pu inventories and a discussion on the ability of the measurements to identify items with misstated SNM are given.

  9. Block LU factorization

    NASA Technical Reports Server (NTRS)

    Demmel, James W.; Higham, Nicholas J.; Schreiber, Robert S.

    1992-01-01

    Many of the currently popular 'block algorithms' are scalar algorithms in which the operations have been grouped and reordered into matrix operations. One genuine block algorithm in practical use is block LU factorization, and this has recently been shown by Demmel and Higham to be unstable in general. It is shown here that block LU factorization is stable if A is block diagonally dominant by columns. Moreover, for a general matrix the level of instability in block LU factorization can be founded in terms of the condition number kappa(A) and the growth factor for Gaussian elimination without pivoting. A consequence is that block LU factorization is stable for a matrix A that is symmetric positive definite or point diagonally dominant by rows or columns as long as A is well-conditioned.

  10. ENCUADRES NOTICIOSOS EN LA INFORMACIÓN PERIODÍSTICA SOBRE LOS RECURSOS HÍDRICOS Y SUS EFECTOS EN LA PERCEPCIÓN Y ACTITUDES HACIA LA PARTICIPACIÓN CÍVICA EN LA POLÍTICA HIDROLÓGICA: UN ESTUDIO EXPERIMENTAL

    Microsoft Academic Search

    Lifen Cheng; Darío Paéz; Juan José Igártua; María Luisa Humanes

    Resumen Existen muchos factores que pueden explicar la razón por la que los ciudadanos están más o menos atentos a un determinado tema social de actualidad como la cuestión del agua y su relación con el medio ambiente (Shanahan, Morgan, y Stenbjerre, 1997). Mucho de lo que sabe el público sobre dicho tema probablemente proviene de los medios de comunicación,

  11. Aplicaciones de los Estándares Educativos a los Sistemas Virtua- les de Formación Colaborativos: Especificaciones para la Herra- mienta LAMS

    Microsoft Academic Search

    Luisa María Romero Moreno

    Resumen Dado el incremento de los campus virtuales en la mayoría de Universidades e Instituciones, así como del uso de eLearning en el ámbito de las empresas, se hace necesario un esfuerzo de planificación para que el uso de las TIC's aporte todo su potencial a los sistemas virtuales de forma- ción. Para ello los llamados estándares de tecnología edu-

  12. Growth factors in haemopoiesis.

    PubMed

    Jones, A L; Millar, J L

    1989-01-01

    Haemopoietic growth factors have for over two decades allowed experimentalists to grow haemopoietic bone marrow cells in vitro. With refinements in technique and the discovery of novel growth factors, all of the known haemopoietic lineages can now be grown in vitro. This has allowed a much greater understanding of the complex process of haemopoiesis from the haemopoietic stem cell to the mature, functioning end-cell. The in vivo action of these growth factors has been harder to investigate. Although recombinant technology has afforded us the much greater quantities necessary for in vivo work, problems remain with administration because of effects on other tissues. Interpretation of results is difficult because of the complex inter-relationships which exist between factors. Some of these have been defined in vitro and it appears likely that they also operate in vivo. Erythropoietin is a physiological regulator of erythropoiesis. It has been detected in vivo with levels responding appropriately to stress (i.e. elevated in anaemia) and, when administered in pharmacological doses, has been shown to correct anaemia. Granulocyte/macrophage colony-stimulating factor (GM-CSF) has been detected in vivo and may influence the production and function of granulocytes and macrophages, although how it is regulated is unknown. Granulocyte colony-stimulating factor (G-CSF) and macrophage colony-stimulating factor are ore lineage-specific. Interleukin 3 (IL-3), although it has not been detected in vivo, may act on a primitive marrow precursor by expanding the population and making these cells more susceptible to other growth factors, such as GM-CSF. Interleukin 1 (IL-1) has been detected in vivo, does not appear to have any isolated action on bone marrow (except possibly radioprotection) but probably acts synergistically with other growth factors, such as G-CSF. Interleukins 2, 4, 5 and 6 have not been detected in vivo. All have effects on B-cells. In addition IL-2 is an essential factor for the in vitro growth of T-cells and may have antitumour effects in vivo. IL-5 is an eosinophil growth factor in vitro. Megakaryocytopoiesis is also affected by humoral factors. Factors, alone or in combination, may be useful to restore functional granulopoiesis when used therapeutically. Some can be used as anticancer agents, although there may be a risk of induction of haematological malignancy. Increased understanding of their physiological roles will allow a more rational use. PMID:2645965

  13. Journal Information Journal Impact Factor

    E-print Network

    Krejcí, Pavel

    Journal Information Journal Impact Factor 5-Year Journal Impact Factor Journal Self Cites Journal Cites Impact Factor 5-Year Impact Factor Immediacy Index Citable Items Cited Half- life Citing Half Used in Impact Factor Calculation 12 Impact Factor 0.222 Self Cites 16 (6% of 240) Self Cites to Years

  14. Journal Information Journal Impact Factor

    E-print Network

    Krejcí, Pavel

    Journal Information Journal Impact Factor 5-Year Journal Impact Factor Journal Self Cites Journal Mark Journal Title ISSN Total Cites Impact Factor 5-Year Impact Factor Immediacy Index Citable Items Used in Impact Factor Calculation 51 Impact Factor 0.300 Self Cites 39 (4% of 834) Self Cites to Years

  15. Los Angeles Public Library: Electronic Neighborhood

    NSDL National Science Digital Library

    Many urban public library systems across the United States have accumulated large troves of paper ephemera over the years, and the Los Angeles Public Library system is no exception. Funded by a grant from the California State Library, the Fletcher Jones Foundation, and the John Randolph Haynes and Dora Haynes Foundation, the Electronic Neighborhood allows the internet-browsing public access to a number of these documents. The database located here includes a large collection of photographs documenting the city's development, a collection of restaurant menus, and an index to fiction works that take place in and around California. The photo database contains over 2.5 million archival records, and a number of thematic online photo exhibits, including ones that document the 1932 Los Angeles Olympics and golf in Hollywood. The menu database is particularly fascinating, as users can search for a number of restaurant menus from the past century. While not all of the records include scanned menu images, a number of them are already available, such as those from the now-defunct Brown Derby.

  16. Factors augmenting allergic reactions.

    PubMed

    Niggemann, B; Beyer, K

    2014-12-01

    Elicitors of anaphylactic reactions are any sources of protein with allergenic capacity. However, not all allergic reactions end up in the most severe form of anaphylaxis. Augmenting factors may explain why certain conditions lead to anaphylaxis. Augmenting factors may exhibit three effects: lowering the threshold, increasing the severity, and reversing acquired clinical tolerance. Common augmenting factors are physical exercise, menstruation, NSAIDs, alcohol, body temperature, acute infections, and antacids. Therapeutic options may address causative, preventive, pragmatic, or symptomatic considerations: avoid the eliciting food, take an antihistamine before any situation with a possible risk of augmentation, separate food and sport (at least for 2 h), and carry an adrenaline autoinjector at all times. Individual patterns include summation effects and specific patterns. In conclusion, in the case of a suggestive history but a negative oral challenge, one should consider the possible involvement of augmenting factors; after anaphylactic reactions, always ask for possible augmentation and other risk factors during the recent past; if augmentation is suspected, oral food challenges should be performed in combination with augmenting factors; and in the future, standardized challenge protocols including augmenting factors should be established. PMID:25306896

  17. Physics of Factorization

    E-print Network

    M. Revzen; A. Mann; J. Zak

    2005-03-30

    The N distinct prime numbers that make up a composite number M allow $2^{N-1}$ bi partioning into two relatively prime factors. Each such pair defines a pair of conjugate representations. These pairs of conjugate representations, each of which spans the M dimensional space are the familiar complete sets of Zak transforms (J. Zak, Phys. Rev. Let.{\\bf 19}, 1385 (1967)) which are the most natural representations for periodic systems. Here we show their relevance to factorizations. An example is provided for the manifestation of the factorization.

  18. The Quark Impact Factors

    E-print Network

    V. S. Fadin; R. Fiore; M. I. Kotsky; A. Papa

    1999-08-05

    We calculate in the next-to-leading approximation the non-forward quark impact factors for both singlet and octet color representation in the $t$-channel. The integral representation of the octet impact factor in the general case of arbitrary space-time dimension and massive quark flavors is used to check the so-called "second bootstrap condition" for the gluon Reggeization at the next-to-leading logarithmic approximation in perturbative QCD. We find that it is satisfied for both helicity conserving and non-conserving parts. The integrations are then performed for the explicit calculation of the impact factors in the massless quark case.

  19. Factorizations in finite groups

    SciTech Connect

    Kulikov, Viktor S [Steklov Mathematical Institute, Russian Academy of Sciences, Moscow (Russian Federation)] [Steklov Mathematical Institute, Russian Academy of Sciences, Moscow (Russian Federation)

    2013-02-28

    A necessary condition for uniqueness of factorizations of elements of a finite group G with factors belonging to a union of some conjugacy classes of G is given. This condition is sufficient if the number of factors belonging to each conjugacy class is big enough. The result is applied to the problem on the number of irreducible components of the Hurwitz space of degree d marked coverings of P{sup 1} with given Galois group G and fixed collection of local monodromies. Bibliography: 9 titles.

  20. World's Largest Gold Crystal Studied at Los Alamos

    ScienceCinema

    Vogel, Sven; Nakotte, Heinz

    2015-01-07

    When geologist John Rakovan needed better tools to investigate whether a dazzling 217.78-gram piece of gold was in fact the world's largest single-crystal specimen - a distinguishing factor that would not only drastically increase its market value but also provide a unique research opportunity - he traveled to Los Alamos National Laboratory's Lujan Neutron Scattering Center to peer deep inside the mineral using neutron diffractometry. Neutrons, different from other probes such as X-rays and electrons, are able to penetrate many centimeters deep into most materials. Revealing the inner structure of a crystal without destroying the sample - imperative, as this one is worth an estimated $1.5 million - would allow Rakovan and Lujan Center collaborators Sven Vogel and Heinz Nakotte to prove that this exquisite nugget, which seemed almost too perfect and too big to be real, was a single crystal and hence a creation of nature. Its owner, who lives in the United States, provided the samples to Rakovan to assess the crystallinity of four specimens, all of which had been found decades ago in Venezuela.

  1. Los Alamos Overview Los Alamos National Laboratory is a premier national security

    E-print Network

    and build an atomic bomb. It took just 20 months. On July 16, 1945, the world's first atomic bomb atomic bombs in an effort to end WWII. Little Boy, a uranium gun-type weapon, was used against Hiroshima was detonated 200 miles south of Los Alamos at Trinity Site on the Alamogordo bombing range. Under

  2. LAMPF II workshop, Los Alamos National Laboratory, Los Alamos, New Mexico, February 1-4, 1982

    SciTech Connect

    Thiessen, H.A. (comp.)

    1982-01-01

    This report contains the proceedings of the first LAMPF II Workshop held at Los Alamos February 1 to 4, 1982. Included are the talks that were available in written form. The conclusion of the participants was that there are many exciting areas of physics that will be addressed by such a machine.

  3. Tracer Studies at Los Alamos 266 Los Alamos Science Number 23 1995

    E-print Network

    Massey, Thomas N.

    Dilla's and Fulwyler's ra- dioiodine experiment. The use of children in human radiation experiments has been a special ethical concern of the President's Advisory Committee on Human Radiation Experiments. At Los Alamos, in 1963, one such experiment was performed in which eight children were given a small

  4. 256 Los Alamos Science Number 23 1995 Tracer Studies at Los Alamos

    E-print Network

    Massey, Thomas N.

    concerns about the ethics and conduct of human radiation experiments that were performed under the auspices ability of radioisotopes to reveal the hidden workings of the human body. The experiment was per- formed- ing the human experiments performed at Los Alamos were in the public domain prior to the openness

  5. Le bissap ( Hibiscus sabdariffa L.) : composition et principales utilisations

    Microsoft Academic Search

    Mady Cisse; Manuel Dornier; Mama Sakho; Augustin Ndiaye; Max Reynes; Oumar Sock

    2009-01-01

    Introduction. Hibiscus sabdariffa L. is a herbaceous plant, cultivated largely in tropical and subtropical areas of both hemispheres. This plant is used for its fibre; mainly for its calyx, which is of three types: green, red and dark red. Composition. The red calyxes are the most used and are characterised by their concentration of anthocyanin, which can reach 1.5 g·kg

  6. Principales caractéristiques des réservoirs du Sud-Ouest tunisien

    NASA Astrophysics Data System (ADS)

    Chalbaoui, Moncef; Ben Dhia, Hamed

    2004-10-01

    A study of the form and characteristics of the reservoirs and aquifers of southwestern Tunisia has been carried out from 62 petroleum explorations and hydrogeologic wells and structural maps. The evolution of basins can be deduced from the tectonic history. The Jurassic reservoirs are represented by the Upper Nara carbonates. The petrophysical characteristics and the fracturation affecting the Nara carbonates reveal the existence of very good reservoirs. Several reservoirs have also been identified in the Lower Cretaceous. These reservoirs are made of sandy levels, interbedded with shale, carbonates and dolomites. In addition, petroleum and hydrogeologic studies have revealed that potential aquifers may occur in two provinces (near the Chott Basin and east-west faults). Most of the geological formations in the South West of Tunisia are composed of sand, sandstone and limestone, with the existence of real aquifers. To cite this article: M. Chalbaoui, H. Ben Dhia, C. R. Geoscience 336 (2004).

  7. Dentin Regeneration in Vital Pulp Therapy: Design Principales

    Microsoft Academic Search

    D. Tziafas; G. Belibasakis; A. Veis; S. Papadimitriou

    2001-01-01

    The nature and specificity of the mechanisms by which the amputated dentin-pulp interface is therapeutically healed determine the properties of the barrier at this site and play a critical role in the outcome of vital pulp therapy. Healing of the dentin-pulp complex proceeds either by natural repair-which results in defensive hard-tissue formation, or therapeutically regulated dentin regeneration, which aims to

  8. Brain Tumor Risk Factors

    MedlinePLUS

    ... Financials Board of Directors Scientific Advisory Council & Reviewers Leadership News Careers Brain Tumor Information Brain Anatomy Brain Tumor Symptoms Diagnosis Types of Tumors Tumor Grade Risk Factors Brain Tumor ...

  9. New microbial growth factor.

    PubMed Central

    Bok, S H; Casida, L E

    1977-01-01

    A screening procedure was used to isolate from soil a Penicillium sp., two bacterial isolates, and a Streptomyces sp. that produced a new microbial growth factor. This factor was an absolute growth requirement for three soil bacteria. The Penicillium sp. and one of the bacteria requiring the factor, an Arthrobacter sp., were selected for more extensive study concerning the production and characteristics of the growth factor. It did not seem to be related to the siderochromes. It was not present in soil extract, rumen fluid, or any other medium component tested. It appears to be a glycoprotein of high molecular weight, and it has high specific activity. When added to the diets for a meadow vole mammalian test system, it caused an increased consumption of diet without a concurrent increase in rate of weight gain. PMID:327929

  10. Screening and Risk Factors

    Cancer.gov

    Close Window State Cancer Profiles Quick Reference Guides ? Quick Reference Guides Index Screening and Risk Factors Send to Printer Text description of this image. Site Home Policies Accessibility Viewing Files FOIA Contact Us U.S. Department of Health

  11. Aerospace Human Factors

    NASA Technical Reports Server (NTRS)

    Jordan, Kevin

    1999-01-01

    The following contains the final report on the activities related to the Cooperative Agreement between the human factors research group at NASA Ames Research Center and the Psychology Department at San Jose State University. The participating NASA Ames division has been, as the organization has changed, the Aerospace Human Factors Research Division (ASHFRD and Code FL), the Flight Management and Human Factors Research Division (Code AF), and the Human Factors Research and Technology Division (Code IH). The inclusive dates for the report are November 1, 1984 to January 31, 1999. Throughout the years, approximately 170 persons worked on the cooperative agreements in one capacity or another. The Cooperative Agreement provided for research personnel to collaborate with senior scientists in ongoing NASA ARC research. Finally, many post-MA/MS and post-doctoral personnel contributed to the projects. It is worth noting that 10 former cooperative agreement personnel were hired into civil service positions directly from the agreements.

  12. Coagulation Factors Test

    MedlinePLUS

    ... of this website will be limited. Search Help? Coagulation Factors Share this page: Was this page helpful? ... if a person has a sufficient amount of coagulation activity in order to control the blood clotting ...

  13. Factor XII assay

    MedlinePLUS

    ... one of the substances involved in blood clotting (coagulation). ... Gailani D, Neff AT. Rare coagulation factor deficiencies. In: Hoffman R, Benz EJ Jr, Silberstein LE, Heslop HE, Weitz JI, eds. Hematology: Basic Principles and Practice . 6th ...

  14. von Willebrand Factor Test

    MedlinePLUS

    ... Platelet Count , Platelet Function Tests , Complete Blood Count , Coagulation Factor VIII , PT , PTT At a Glance Test ... a protein , one of several components of the coagulation system that work together to stop bleeding and ...

  15. Power Factor Improvement

    E-print Network

    Viljoen, T. A.

    1979-01-01

    and disadvantages of various locations in the electrical network are described including the cost of installation and network capacity improvement. Sizing of capacitors is also covered. Finally, some case studies involving power factor improvement are presented...

  16. Teleoperator human factors study

    NASA Technical Reports Server (NTRS)

    1984-01-01

    The progress made on the Teleoperator Human Factors Study program is summarized. Technical and programmatic problems that were encountered were discussed along with planned activities. The report contains four sections: Work Performed, Future Work, Problems Encountered, and Cost Information

  17. Teleoperator human factors study

    NASA Technical Reports Server (NTRS)

    1984-01-01

    The progress made on the Teleoperator Human Factors Study program is summarized. Technical and programmatic problems that were encountered are discussed along with planned activity. Work performed, future work, problems encountered, and cost information comprise the topics addressed herein.

  18. Keratinocyte growth factor

    Microsoft Academic Search

    Jeffrey S. Rubin; Donald P. Bottaro; Marcio Chedid; Toru Miki; Dina Ron; Hyae-Gyeong Cheon; William G. Taylor; Emma Fortney; Hiromi Sakata; Paul W. Finch; William J. LaRochelle

    1995-01-01

    Keratinocyte growth factor (KGF) is a member of the heparin-binding fibroblast growth factor family (FGF-7) with a distinctive pattern of target-cell specificity. Studies performed in cell culture suggested that KGF was mitogenically active only on epithelial cells, albeit from a variety of tissues. In contrast, KGF was produced solely by cells of mesenchymal origin, leading to the hypothesis that it

  19. Optimizing Power Factor Correction

    E-print Network

    Phillips, R. K.; Burmeister, L. C.

    OPTIMIZING POWER FACTOR CORRECTION Robert K. Phillips and Louis C. Burmeister, Mechanical Engineering, University of Kansas, Lawrence, KS The optimal investment for power factor correcting capacitors for Kansas Power and Light Company large... that varles from utility to utility and even between different rate schedules of the same utility. Two examples show the difference between utilities. The Kansas City Power and Light Company "General Service Large" Rate Schedule l-GL provides no penalty...

  20. The Gluon Impact Factors

    E-print Network

    V. S. Fadin; R. Fiore; M. I. Kotsky; A. Papa

    1999-08-05

    We calculate in the next-to-leading approximation the non-forward gluon impact factors for arbitrary color state in the $t$-channel. In the case of the octet state we check the so-called "second bootstrap condition" for the gluon Reggeization in QCD, using the integral representation for the impact factors. The condition is fulfilled in the general case of an arbitrary space-time dimension and massive quark flavors for both helicity conserving and non-conserving parts.

  1. La evolución de los conflictos por los recursos: Un análisis desde los tiempos de la colonia hasta el presente en América del Sur

    Microsoft Academic Search

    Gabriel De Paula

    La hipótesis de trabajo que se intentará demostrar en el presente trabajo es que las potencias por más de 500 años han implementado acciones tendientes al control sobre recursos naturales necesarios para el financiamiento y desarrollo de sus economías. A medida que avanza la historia y los avances tecnológicos las estrategias van modificándose, así como también los mecanismos de control,

  2. [Aggravating factors of rosacea].

    PubMed

    Jaworek, Andrzej Kazimierz; Wojas-Pelc, Anna; Pastuszczak, Maciej

    2008-01-01

    Rosacea is a chronic, inflammatory skin disease which is mainly localized in the central region of the face. Papules and pustules appear on the erythematic ground. Rosacea is common in population. Four subtypes of rosacea (erythematoteleangiectatic rosacea, ETR; papulo - pustular rosacea, PPR; ocular rosacea and phymatous rosacea) are classified (according to current classification) and one variant rosacea (granulomatous rosacea, GR). It is considered that an attempt to determine of triggering factors of rosacea should be the first step to treatment. Then it should be tried to eliminate contact with them. The aim of this study was an analysis of triggering factors of rosacea. 43 women and 26 men treated in the Dermatology Outpatient's Clinic of Jagiellonian University School of Medicine in Cracow were enrolled in the study. All patients were asked which factors trigger skin changes according to them. Patients mentioned most often: stress (58 percent), sun exposure (56.5 per. cent), alcohol (33.3 percent), exercise (29 percent), drinking coffee (21.7 percent) and hot meals (20.3 percent). They regarded the sun as the most strongly aggravating factor of rosacea (29.2 percent). It seems, that elimination and reduction of contact with aggravating factors is still an undervalued aspect of rosacea's treatment. Patients' motivation for use of prevention seems to be also very important. Knowledge about aggravating factors of rosacea, coming directly from patients' observations, may help in more effective treatment. PMID:18724544

  3. Los Alamos Transuranic Waste Size Reduction Facility

    SciTech Connect

    Harper, J.; Warren, J.

    1987-06-01

    The Los Alamos Transuranic (TRU) Waste Size Reduction Facility (SRF) is a production oriented prototype. The facility is operated to remotely cut and repackage TRU contaminated metallic wastes (e.g., glove boxes, ducting and pipes) for eventual disposal at the Waste Isolation Pilot Plant (WIPP) near Carlsbad, New Mexico. The resulting flat sections are packaged into a tested Department of Transportation Type 7A metal container. To date, the facility has successfully processed stainless steel glove boxes (with and without lead shielding construction) and retention tanks. We have found that used glove boxes generate more cutting fumes than do unused glove boxes or metal plates - possibly due to deeply embedded chemical residues from years of service. Water used as a secondary fluid with the plasma arc cutting system significantly reduces visible fume generation during the cutting of used glove boxes and lead-lined glove boxes. 2 figs., 1 tab.

  4. Los Alamos controlled-air incineration studies

    SciTech Connect

    Koenig, R.A.; Warner, C.L.

    1983-01-01

    Current regulations of the Environmental Protection Agency (EPA) require that PCBs in concentrations greater than 500 ppM be disposed of in EPA-permitted incinerators. Four commercial incineration systems in the United States have EPA operating permits for receiving and disposing of concentrated PCBs, but none can accept PCBs contaminated with nuclear materials. The first section of this report presents an overview of an EPA-sponsored program for studying PCB destruction in the large-scale Los Alamos controlled-air incinerator. A second major FY 1983 program, sponsored by the Naval Weapons Support Center, Crane, Indiana, is designed to determine operating conditions that will destroy marker smoke compounds without also forming polycyclic aromatic hydrocarbons (PAHs), some of which are known or suspected to be carcinogenic. We discuss the results of preliminary trial burns in which various equipment and feed formulations were tested. We present qualitative analyses for PAHs in the incinerator offgas as a result of these tests.

  5. Foreign National Involvement at Los Alamos

    NASA Astrophysics Data System (ADS)

    Wilhelmy, Jerry

    2000-04-01

    Since the beginning of the spring of 1999 there has been an intense national media focus on alleged security breaches by a foreign born scientist employed at LANL. Alarmed by an apparent growing sense of xenophobia, the Fellows of the Los Alamos National Laboratory addressed this issue by preparing a white paper on Foreign National Involvement at LANL (www.fellows.lanl.gov). Its purpose was to recognize and acknowledge the vital role that foreign scientists have played and continue to play in making LANL a forefront scientific institution. This legacy will be discussed, as well as concerns that constraining regulations triggered by this episode and subsequent reactions to this by our scientific peer community could have long term consequences on the vitality of the Laboratory.

  6. Los Alamos Plutonium Facility Waste Management System

    SciTech Connect

    Smith, K.; Montoya, A.; Wieneke, R.; Wulff, D.; Smith, C.; Gruetzmacher, K.

    1997-02-01

    This paper describes the new computer-based transuranic (TRU) Waste Management System (WMS) being implemented at the Plutonium Facility at Los Alamos National Laboratory (LANL). The Waste Management System is a distributed computer processing system stored in a Sybase database and accessed by a graphical user interface (GUI) written in Omnis7. It resides on the local area network at the Plutonium Facility and is accessible by authorized TRU waste originators, count room personnel, radiation protection technicians (RPTs), quality assurance personnel, and waste management personnel for data input and verification. Future goals include bringing outside groups like the LANL Waste Management Facility on-line to participate in this streamlined system. The WMS is changing the TRU paper trail into a computer trail, saving time and eliminating errors and inconsistencies in the process.

  7. Environmental surveillance at Los Alamos during 1989

    SciTech Connect

    Not Available

    1990-12-01

    This report describes the environmental surveillance program conducted by Los Alamos National Laboratory during 1989. Routine monitoring for radiation and radioactive or chemical materials is conducted on the Laboratory site as well as in the surrounding region. Monitoring results are used to determine compliance with appropriate standards and to permit early identification of potentially undesirable trends. Results and interpretation of data for 1989 cover external penetrating radiation; quantities of airborne emissions and effluents; concentrations of chemicals and radionuclides in ambient air, surface and ground waters, municipal water supply, soils and sediments, and foodstuffs; and environmental compliance. Comparisons with appropriate standards, regulations, and background levels provide the basis for concluding that environmental effects from Laboratory operations are small and do not pose a threat to the public, Laboratory employees, or the environment. 58 refs., 31 figs., 39 tabs.

  8. Environmental surveillance at Los Alamos during 1987

    SciTech Connect

    Not Available

    1988-05-01

    This report describes the environmental surveillance program conducted by Los Alamos National Laboratory during 1987. Routine monitoring for radiation and radioactive or chemical materials is conducted on the Laboratory site as well as in the surrounding region. Monitoring results are used to determine compliance with appropriate standards and to permit early identification of potentially undesirable trends. Results and interpretation of data for 1987 cover: external penetrating radiation; quantities of airborne emissions and liquid effluents; concentrations of chemicals and radionuclides in ambient air, surface and ground waters, municipal water supply, soils and sediments, and foodstuffs; and environmental compliance. Comparisons with appropriate standards, regulations, and background levels provide the basis for concluding that environmental effects from Laboratory operations are insignificant and do not pose a threat to the public, Laboratory employees, or the environment. 113 refs., 33 figs., 120 tabs.

  9. High-performance computing at Los Alamos

    SciTech Connect

    Ewald, R.H.

    1983-01-01

    The Los Alamos National Laboratory is operated by the University of California for the United States Department of Energy (DOE). The Laboratory employs about 7000 people, and its mission is to perform research and development activities related to national security and energy programs. To support its own and other national programs, the Laboratory has developed a state-of-the-art scientific computing network that supports about 4500 users. The network, called the Integrated Computing Network (ICN), is shown. About 100 computers are connected to the ICN, and it is separated physically or logically into three security partitions: Secure for classified computing; Open for unclassified computing; and Administrative for administrative computing. The networks are described and some data on system performance and workload characterization are given.

  10. The Los Alamos Intense Neutron Source

    SciTech Connect

    Nebel, R.A.; Barnes, D.C.; Bollman, R.; Eden, G.; Morrison, L.; Pickrell, M.M.; Reass, W.

    1997-10-01

    The Intense Neutron Source (INS) is an Inertial Electrostatic Confinement (IEC) fusion device presently under construction at Los Alamos National Laboratory. It is designed to produce 10{sup 11} neutrons per second steady-state using D-T fuel. Phase 1 operation of this device will be as a standard three grid IEC ion focus device. Expected performance has been predicted by scaling from a previous IEC device. Phase 2 operation of this device will utilize a new operating scheme, the Periodically Oscillating Plasma Sphere (POPS). This scheme is related to both the Spherical Reflect Diode and the Oscillating Penning Trap. With this type of operation the authors hope to improve plasma neutron production to about 10{sup 13} neutrons/second.

  11. Information about Practicums at Los Alamos

    SciTech Connect

    Bradley, Paul A. [Los Alamos National Laboratory

    2012-07-24

    The Los Alamos Neutron Science Center is the premier facility for neutron science experiments ranging from cross section measurements, neutron scattering experiments, proton radiography, cold neutrons, actinide neutronic properties, and many other exciting topics. The National High Magnetic Field Laboratory is home to several powerful magnets, including the one that created the first non-destructive 100 Tesla field in March 2012. They probe the electronic structure of superconductors, magnetic properties of materials (including magneto-quantum effects). Research is also conducted in correlated materials, thermoacoustics, and magnetic properties of actinides. The Trident Laser has a unique niche with very high power, short pulse experiments, with a peak power of 10{sup 20} W in short pulse mode. Discoveries range from production of monoenergetic MeV ion beam, nonlinear kinetic plasma waves, the transition between kinetic and fluid nonlinear behavior and other laser-plasma interaction processes.

  12. Hot Dry Rock Overview at Los Alamos

    SciTech Connect

    Berger, Michael; Hendron, Robert H.

    1989-03-21

    The Hot Dry Rock (HDR) geothermal energy program is a renewable energy program that can contribute significantly to the nation's balanced and diversified energy mix. Having extracted energy from the first Fenton Hill HDR reservoir for about 400 days, and from the second reservoir for 30 days in a preliminary test, Los Alamos is focusing on the Long Term Flow Test and reservoir studies. Current budget limitations have slowed preparations thus delaying the start date of that test. The test is planned to gather data for more definitive reservoir modeling with energy availability or reservoir lifetime of primary interest. Other salient information will address geochemistry and tracer studies, microseismic response, water requirements and flow impedance which relates directly to pumping power requirements. During this year of ''preparation'' we have made progress in modeling studies, in chemically reactive tracer techniques, in improvements in acoustic or microseismic event analysis.

  13. Environmental surveillance at Los Alamos during 1992

    SciTech Connect

    Kohen, K.; Stoker, A.; Stone, G. [and others

    1994-07-01

    This report describes the environmental surveillance program at Los Alamos National Laboratory during 1992. The Laboratory routinely monitors for radiation and for radioactive and nonradioactive materials at (or on) Laboratory sites as well as in the surrounding region. LANL uses the monitoring results to determine compliance with appropriate standards and to identify potentially undesirable trends. Data were collected in 1992 to assess external penetrating radiation; quantities of airborne emissions and liquid effluents; concentrations of chemicals and radionuclides in ambient air, surface waters and groundwaters, municipal water supply, soils and sediments, and foodstuffs; and environmental compliance. Using comparisons with standards, regulations, and background levels, this report concludes that environmental effects from Laboratory operations are small and do not pose a demonstrable threat to the public, laboratory employees, or the environment.

  14. Environmental surveillance at Los Alamos during 1979

    SciTech Connect

    Not Available

    1980-04-01

    This report documents the environmental surveillance program conducted by the Los Alamos Scientific Laboratory (LASL) in 1979. Routine monitoring for radiation and radioactive or chemical substances was conducted on the Laboratory site and in the surrounding region to determine compliance with appropriate standards and permit early identification of possible undesirable trends. Results and interpretation of the data for 1979 on penetrating radiation, chemical and radiochemical quality of ambient air, surface and ground water, municipal water supply, soils and sediments, food, and airborne and liquid effluents are included. Comparisons with appropriate standards and regulations or with background levels from natural or other non-LASL sources provide a basis for concluding that environmental effects attributable to LASL operations are minor and cannot be considered likely to result in any hazard to the population of the area. Results of several special studies provide documentation of some unique environmental conditions in the LASL environs.

  15. Update on the Los Alamos UCN Source

    NASA Astrophysics Data System (ADS)

    Makela, Mark

    2014-03-01

    The ultracold neutron (UCN) source at Los Alamos National Lab has been running since 2005. During this time the source production has steadily increased due to upgrades. The source feeds two experimental beam lines. The primary beam line feeds the UCNA spectrometer and the other feeds the UCN lifetime experiment and various small scale experiments. The source produces UCN from spallation neutrons by first moderating them to cold temperatures with cold polyethylene and five Kelvin deuterium; these cold neutrons then knock off a phonon in the cold deuterium and become UCN (this final step is not an equilibrium process). In preparation for upgrading the beam delivery system to the spallation target several studies have been done to determine the best beam pattern to derive the maximum UCN density in experiments. The results of these studies and the predicted increase in ucn density will be presented. In addition to these studies a new ucn source design will be presented.

  16. Recent development in pyrochemistry at Los Alamos

    SciTech Connect

    McNeese, J.A.; Fife, K.W.; Williams, J.D.

    1984-01-01

    Recent developments in pyrochemical processing at Los Alamos include the recovery of plutonium from anodes and impure metal by pyroredox and new molten salt handling and purification techniques. The anode is dissolved in a ZnCl/sub 2/ KCl salt to form PuCl/sub 3/ and a zinc and impurities button. Calcium reduction of the PuCl/sub 3/ yields 95 to 98% pure plutonium. New techniques for transferring molten salt from a purification or regeneration vessel to molds has been successfully developed and demonstrated. Additional salt work involving recycle of direct oxide reduction salts using anhydrous hydrogen chloride, phosgene, and chlorine gases is under way. 13 figures, 1 table.

  17. Factor Loading Estimation Error and Stability Using Exploratory Factor Analysis

    ERIC Educational Resources Information Center

    Sass, Daniel A.

    2010-01-01

    Exploratory factor analysis (EFA) is commonly employed to evaluate the factor structure of measures with dichotomously scored items. Generally, only the estimated factor loadings are provided with no reference to significance tests, confidence intervals, and/or estimated factor loading standard errors. This simulation study assessed factor loading…

  18. Environmental surveillance at Los Alamos during 2009

    SciTech Connect

    none,

    2010-09-30

    Environmental Surveillance at Los Alamos reports are prepared annually by the Los Alamos National Laboratory (the Laboratory) environmental organization, as required by US Department of Energy Order 5400.1, General Environmental Protection Program, and US Department of Energy Order 231.1A, Environment, Safety, and Health Reporting. These annual reports summarize environmental data that are used to determine compliance with applicable federal, state, and local environmental laws and regulations, executive orders, and departmental policies. Additional data, beyond the minimum required, are also gathered and reported as part of the Laboratory’s efforts to ensure public safety and to monitor environmental quality at and near the Laboratory. Chapter 1 provides an overview of the Laboratory’s major environmental programs and explains the risks and the actions taken to reduce risks at the Laboratory from environmental legacies and waste management operations. Chapter 2 reports the Laboratory’s compliance status for 2009. Chapter 3 provides a summary of the maximum radiological dose the public and biota populations could have potentially received from Laboratory operations and discusses chemical exposures. The environmental surveillance and monitoring data are organized by environmental media (air in Chapter 4; water and sediments in Chapters 5 and 6; soils in Chapter 7; and foodstuffs and biota in Chapter 8) in a format to meet the needs of a general and scientific audience. Chapter 9 provides a summary of the status of environmental restoration work around LANL. The new Chapter 10 describes the Laboratory’s environmental stewardship efforts and provides an overview of the health of the Rio Grande. A glossary and a list of acronyms and abbreviations are in the back of the report. Appendix A explains the standards for environmental contaminants, Appendix B explains the units of measurements used in this report, Appendix C describes the Laboratory’s technical areas and their associated programs, and Appendix D provides web links to more information.

  19. Environmental surveillance at Los Alamos during 2008

    SciTech Connect

    none,

    2009-09-30

    Environmental Surveillance at Los Alamos reports are prepared annually by the Los Alamos National Laboratory (the Laboratory) Environmental Programs Directorate, as required by US Department of Energy Order 450.1, General Environmental Protection Program, and US Department of Energy Order 231.1A, Environment, Safety, and Health Reporting. These annual reports summarize environmental data that are used to determine compliance with applicable federal, state, and local environmental laws and regulations, executive orders, and departmental policies. Additional data, beyond the minimum required, are also gathered and reported as part of the Laboratory’s efforts to ensure public safety and to monitor environmental quality at and near the Laboratory. Chapter 1 provides an overview of the Laboratory’s major environmental programs and explains the risks and the actions taken to reduce risks at the Laboratory from environmental legacies and waste management operations. Chapter 2 reports the Laboratory’s compliance status for 2007. Chapter 3 provides a summary of the maximum radiological dose the public and biota populations could have potentially received from Laboratory operations and discusses chemical exposures. The environmental surveillance and monitoring data are organized by environmental media (Chapter 4, air; Chapters 5 and 6, water and sediments; Chapter 7, soils; and Chapter 8, foodstuffs and biota) in a format to meet the needs of a general and scientific audience. Chapter 9 provides a summary of the status of environmental restoration work around LANL. A glossary and a list of acronyms and abbreviations are in the back of the report. Appendix A explains the standards for environmental contaminants, Appendix B explains the units of measurements used in this report, Appendix C describes the Laboratory’s technical areas and their associated programs, and Appendix D provides web links to more information.

  20. Environmental surveillance at Los Alamos during 2005

    SciTech Connect

    none,

    2006-09-30

    Environmental Surveillance at Los Alamos reports are prepared annually by the Los Alamos National Laboratory (LANL or the Laboratory) environmental organization, as required by US Department of Energy Order 5400.1, General Environmental Protection Program, and US Department of Energy Order 231.IA, Environment, Safety, and Health Reporting. These annual reports summarize environmental data that are used to determine compliance with applicable federal, state, and local environmental laws and regulations, executive orders, and departmental policies. Additional data, beyond the minimum required, are also gathered and reported as part of the Laboratory's efforts to ensure public safety and to monitor environmental quality at and near the Laboratory. Chapter 1 provides an overview of the Laboratory's major environmental programs. Chapter 2 reports the Laboratory's compliance status for 2005. Chapter 3 provides a summary of the maximum radiological dose the public and biota populations could have potentially received from Laboratory operations. The environmental surveillance and monitoring data are organized by environmental media (Chapter 4, Air; Chapters 5 and 6, Water and Sediments; Chapter 7, Soils; and Chapter 8, Foodstuffs and Biota) in a format to meet the needs of a general and scientific audience. Chapter 9, new for this year, provides a summary of the status of environmental restoration work around LANL. A glossary and a list ofacronyms and abbreviations are in the back of the report. Appendix A explains the standards for environmental contaminants, Appendix B explains the units of measurements used in this report, Appendix C describes the Laboratory's technical areas and their associated programs, and Appendix D provides web links to more information.

  1. Comprension de los conceptos de los enlaces ionico y covalente en estudiantes universitarios del primer curso de quimica general

    NASA Astrophysics Data System (ADS)

    Ballesteros Benavides, Maria Elvira

    Para este trabajo utilizamos el estudio de casos cualitativo que se llevo a cabo en una universidad privada de Puerto Rico. Empleamos como unidad de analisis el concepto de enlace quimico, ionico y covalente. Los participantes fueron los estudiantes de la seccion nocturna del curso de Quimica General I. La investigacion se desarrollo por medio de dos entrevistas de persona a persona, observaciones de las expresiones no verbales y la hoja de identificacion de conceptos. Para la triangulacion tomamos en consideracion las preconcepciones erroneas, las concepciones alternativas y el mapa de conceptos de cada participante. Preparamos un mapa de conceptos para el enlace quimico validado por un comite de expertos. Tambien, elaboramos los mapas de conceptos de los participantes que sirvieron para varios propositos: conocer la estructura conceptual, expresar los logros, hacer comparaciones e identificar la presencia de concepciones alternativas. Entre los hallazgos encontramos que todos los participantes poseen conocimiento previo de los enlaces quimicos ionico y covalente y dentro de ese conocimiento existen preconcepciones erroneas mas numerosas para el enlace ionico. Al principio del semestre el 50% de los participantes demostraron tener "carencia fuerte de conceptos" tanto para el enlace ionico como para el covalente. Al finalizar el semestre encontramos en el 40% de los participantes concepciones alternativas tanto para el enlace ionico como para el covalente y el 90% no lograron distinguir un enlace del otro. Nuestras conclusiones fueron que los participantes sin distincion del aprovechamiento academico demostraron tener la tendencia de "carencia fuerte de conceptos" tanto para el enlace ionico como para el covalente, presentaron dificultad al integrar los conceptos de los enlaces quimicos ionico y covalente que se pusieron de manifiesto al dar los ejemplos. Las preconcepciones erroneas contribuyen en el desarrollo de las concepciones alternativas. Ademas, los participantes no lograron diferenciar los dos enlaces quimicos. Esto implica que reflexionemos sobre la necesidad de revisar tanto las competencias cognoscitivas como la forma de ensenar quimica en el salon de clase. Recomendamos indagar y dar importancia al conocimiento previo de los estudiantes, enfatizar la ensenanza de los conceptos y propiciar el aprendizaje con significado.

  2. Statistics of Velocity Structure in the Los Angeles Area

    NASA Astrophysics Data System (ADS)

    Savran, W. H.; Olsen, K. B.; Jacobsen, B. H.

    2013-12-01

    With recent advancements in supercomputing, the highest frequency of 3D deterministic earthquake simulations has reached 5-10Hz, the range required by engineers for structural design. However, realistic ground motion estimation at such frequencies assumes complexity of both the earthquake source and surrounding medium on the order of 10-100 m. While such small-scale heterogeneities may significantly affect earthquake ground motions in geologic basins, they are not included in state-of-the-art 3D velocity models, and have no prospect of characterization by direct measurements. Instead, we propose to include statistical models of the small-scale crustal heterogeneities in the 3D velocity models. As a first step toward this goal, we have collected readily available near-surface velocity data, including several datasets. We used direct and indirect Vs30 values as well as shallow and deep downhole velocity logs from oil exploration and geotechnical surveys. We analyze this data using a moving-window variogram method to estimate statistical parameters from the data set assuming a fractal distribution. Our preliminary results show Hurst exponents in the range of 0.05 to 0.3 and vertical correlation lengths of approximately 90-100m. The next step is to validate the observationally-constrained model of near-surface heterogeneities. We simulate 0-5 Hz visco-elastic wave propagation for the 2008 Mw5.4 Chino Hills, CA, earthquake in statistical models superimposed on the Southern California Earthquake Center (SCEC) Community Velocity Model (CVM) version 4, and compare the results to strong-motion data. We use a parallel staggered-finite-difference code (AWP-ODC) for the simulations in a 56 km x 40 km section of the Los Angeles basin with a minimum S-wave velocity of 200 m/s. We find amplification/de-amplification of peak ground velocities of approximately up to a factor of two, and that strong motion records provide useful constraints on the parameters of the statistical model. In addition, we find that widely used estimates of anelastic S-wave attenuation for the Los Angeles basin may need to be tuned, when the statistical model is included.

  3. Diet and hemostatic factors.

    PubMed

    Tracy, R P

    1999-11-01

    The coagulation, fibrinolytic, and platelet activating systems are complex and interact extensively, and with other systems such as inflammation. Key reactions often require biomembranes, suggesting that dietary lipids, to the extent that they influence membrane composition, may have important regulatory roles. Also, recent evidence suggests that both postprandial and fasting lipoproteins may be associated with either factor levels or activation state or both. This issue has added importance because several hemostatic and fibrinolytic factors are known CVD risk factors. Although there are associations between fasting lipid levels and several coagulation and fibrinolytic factors, the mechanisms are unclear, as are the implications for intervention. In general, postprandial lipids are at least somewhat procoagulant because they activate factor VII. It remains to be demonstrated, however, that this postprandial activation has important clinical correlates. Dietary supplementation with marine omega-3 fatty acids does prolong the bleeding time and may decrease thrombotic potential; however, other than this, little is known about the direct effects of dietary fatty acids on hemostatic and fibrinolytic activities. Much work is needed in carefully controlled studies to expand our knowledge in this important area. PMID:11122717

  4. A time series of urban forestry in Los Angeles

    Microsoft Academic Search

    Thomas Welch Gillespie; Stephanie Pincetl; Shea Brossard; Jenny Smith; Sassan Saatchi; Diane Pataki; Jean-Daniel Saphores

    There has been an increasing interest in the evolution of urban forests. This research uses historic and digital aerial photography\\u000a to quantify changes in tree density in Los Angeles, California since the 1920’s. High-resolution geographic information system\\u000a analysis (4 to 6 time periods) of three regions (San Fernando Valley, Hollywood, Los Angeles Basin) of Los Angeles reveals\\u000a that there has

  5. Decommissioning the Los Alamos Molten Plutonium Reactor Experiment (LAMPRE I)

    SciTech Connect

    Harper, J.R.; Garde, R.

    1981-11-01

    The Los Alamos Molten Plutonium Reactor Experiment (LAMPRE I) was decommissioned at the Los Alamos National Laboratory, Los Alamos, New Mexico, in 1980. The LAMPRE I was a sodium-cooled reactor built to develop plutonium fuels for fast breeder applications. It was retired in the mid-1960s. This report describes the decommissioning procedures, the health physics programs, the waste management, and the costs for the operation.

  6. Review of liquid metal heat pipe work at Los Alamos

    Microsoft Academic Search

    Robert S. Reid; Michael A. Merrigan; J. Tom Sena

    1991-01-01

    A survey of space-power related liquid metal heat pipe work at Los Alamos National Laboratory is presented. Heat pipe development at Los Alamos has been on-going since 1963. Heat pipes were initially developed for thermionic nuclear-electrical power production in space. Since then Los Alamos has developed liquid metal heat pipes for numerous applications related to high temperature systems in both

  7. Review of liquid metal heat pipe work at Los Alamos

    Microsoft Academic Search

    Robert S. Reid; Michael A. Merrigan; J. Tom Sena

    1990-01-01

    A survey of space-power related liquid metal heat pipe work at Los Alamos National Laboratory is presented. Heat pipe development at Los Alamos has been on-going since 1963. Heat pipes were initially developed for thermionic nuclear-electrical power production in space. Since then Los Alamos has developed liquid metal heat pipes for numerous applications related to high temperature systems in both

  8. Fusion ProgramFusion Program Overview at Los Alamos

    E-print Network

    by the Los Alamos National Security, LLC for the DOE/NNSA Slide 1 LA-UR 09-07809 #12;ABSTRACT OUTLINERIE U N C L A S S I F I E D Operated by the Los Alamos National Security, LLC for the DOE/NNSA Slide 2 by the Los Alamos National Security, LLC for the DOE/NNSA Slide 3 #12;FES 2009 LANL Highlights Research

  9. DSN human factors project

    NASA Technical Reports Server (NTRS)

    Chafin, R. L.; Martin, T. H.

    1980-01-01

    The project plan was to hold focus groups to identify the factors influencing the ease of use characteristics of software and to bond the problem. A questionnaire survey was conducted to evaluate those factors which were more appropriately measured with that method. The performance oriented factors were analyzed and relationships hypothesized. The hypotheses were put to test in the experimental phase of the project. In summary, the initial analysis indicates that there is an initial performance effect favoring computer controlled dialogue but the advantage fades fast as operators become experienced. The user documentation style is seen to have a significant effect on performance. The menu and prompt command formats are preferred by inexperienced operators. The short form mnemonic is least favored. There is no clear best command format but the short form mnemonic is clearly the worst.

  10. Psychological Factors in Asthma

    PubMed Central

    2008-01-01

    Asthma has long been considered a condition in which psychological factors have a role. As in many illnesses, psychological variables may affect outcome in asthma via their effects on treatment adherence and symptom reporting. Emerging evidence suggests that the relation between asthma and psychological factors may be more complex than that, however. Central cognitive processes may influence not only the interpretation of asthma symptoms but also the manifestation of measurable changes in immune and physiologic markers of asthma. Furthermore, asthma and major depressive disorder share several risk factors and have similar patterns of dysregulation in key biologic systems, including the neuroendocrine stress response, cytokines, and neuropeptides. Despite the evidence that depression is common in people with asthma and exerts a negative impact on outcome, few treatment studies have examined whether improving symptoms of depression do, in fact, result in better control of asthma symptoms or improved quality of life in patients with asthma. PMID:20525122

  11. Imaginacion e identidad: los personajes de Juan Tovar

    E-print Network

    Dennis, Susan Michele

    1983-01-01

    personal. A diferencia de los otros, se preocupa mas por los ninos y los viejos, por "esos rincones de la soledad" que aislan al individuo de su mundo. El proposito de esta tesis es es- tudiar la manera en que los personajes de Tovar pretenden huir de... escribiendo, ahora en el pueblo de Tepoz- tlan. Ha terminado otra novela todavia inedita, pero su mayor interes en este momento es el teatro, que considers un medio mas directo de comunicarse con el publico, y de buscar camo su pais "ha llegado a ser lo...

  12. Chinatown Revisited: Arsenic and the Los Angeles Water Supply

    NSDL National Science Digital Library

    Janet Hering

    This quarterly magazine article addresses the presence of arsenic in the Los Angeles water supply, tracing it back to Owens Valley and the development of the Los Angeles Aqueduct. It begins by offering an image-rich history of the Los Angeles Aqueduct and then explains current research in Owens Valley, particularly Hot Creek Gorge. Maps, charts, and graphs are used to illustrate data supporting the involvement of biological activity- primarily microbial- in the oxidation of arsenite As(III). The article concludes with a look at the environmental consequences both arsenic and the Los Angeles Aqueduct have had on Owens Valley.

  13. Meningococcal group A lipooligosaccharides (LOS): preliminary structural studies and characterization of serotype-associated and conserved LOS epitopes.

    PubMed Central

    Kim, J J; Phillips, N J; Gibson, B W; Griffiss, J M; Yamasaki, R

    1994-01-01

    Structural studies indicate that the neisserial lipooligosaccharides (LOS) are composed of an oligosaccharide (OS) portion with a phosphorylated diheptose (Hep) core attached to the toxic lipid A moiety. A conserved meningococcal LOS epitope, defined by monoclonal antibody (MAb) D6A, is expressed on group A and many group B and C meningococci of different LOS serotypes (J. J. Kim, R. E. Mandrell, H. Zhen, M. A. Apicella, J. T. Poolman, and J. M. Griffiss, Infect. Immun. 56:2631-2638, 1988). This MAb-defined D6A epitope is immunogenic in humans (M. M. Estabrook, R. E. Mandrell, M. A. Apicella, and J. M. Griffiss, Infect. Immun. 58:2204-2213, 1990; M. M. Estabrook, C. J. Baker, and J. M. Griffiss, J. Infect. Dis. 197:966-970, 1993). In this study, we characterize this important MAb-defined LOS epitope. Serotype L10 and L11 group A meningococal LOS were chemically modified and used to investigate what portion of the LOS molecule is important for expression of the conserved (D6A) epitope and serotype-associated LOS epitopes by use of immunoblotting techniques and selected MAbs as probes. Preliminary structural characterization of the LOS was also accomplished by electrospray ionization-mass spectrometry. Our results indicate the following. (i) Antibodies that recognize the serotype-associated or conserved LOS epitopes recognize the OS portion of the LOS. (ii) The phosphorylated diheptose core region of the OS is essential for expression of the conserved D6A epitope. (iii) The lipid portion of the molecule is important for optimum expression of the LOS epitopes. (iv) The proposed compositions of the O-deacylated LOS are consistent with the presence of a phosphorylated diheptose core and are as follows: for O-deacylated L10 LOS, 3Hex (hexose), 1HexNAc (N-acetylhexosamine), 2KDO (2-keto-3-deoxy-D-manno-octulosonic acid), 2Hep (heptose), 1PEA or 2PEA (phosphoethanolamine), and O-deacylated lipid A; and for O-deacylated L11 LOS, 2Hex, 1HexNAc, 2KDO, 2Hep, 2PEA, and O-deacylated lipid A. Because the phosphorylated diheptose core region of the LOS is essential for the formation of a conserved LOS epitope (D6A) that is immunogenic in humans, care should be taken to maintain stereochemical requirements for the expression of this conserved epitope in the design of effective, nontoxic LOS vaccines. Images PMID:7513302

  14. Environmental analysis of Lower Pueblo/Lower Los Alamos Canyon, Los Alamos, New Mexico

    SciTech Connect

    Ferenbaugh, R.W.; Buhl, T.E.; Stoker, A.K.; Becker, N.M.; Rodgers, J.C.; Hansen, W.R.

    1994-12-01

    The radiological survey of the former radioactive waste treatment plant site (TA-45), Acid Canyon, Pueblo Canyon, and Los Alamos Canyon found residual contamination at the site itself and in the channel and banks of Acid, Pueblo, and lower Los Alamos Canyons all the way to the Rio Grande. The largest reservoir of residual radioactivity is in lower Pueblo Canyon, which is on DOE property. However, residual radioactivity does not exceed proposed cleanup criteria in either lower Pueblo or lower Los Alamos Canyons. The three alternatives proposed are (1) to take no action, (2) to construct a sediment trap in lower Pueblo Canyon to prevent further transport of residual radioactivity onto San Ildefonso Indian Pueblo land, and (3) to clean the residual radioactivity from the canyon system. Alternative 2, to cleanup the canyon system, is rejected as a viable alternative. Thousands of truckloads of sediment would have to be removed and disposed of, and this effort is unwarranted by the low levels of contamination present. Residual radioactivity levels, under either present conditions or projected future conditions, will not result in significant radiation doses to persons exposed. Modeling efforts show that future transport activity will not result in any residual radioactivity concentrations higher than those already existing. Thus, although construction of a sediment trap in lower Pueblo Canyon is a viable alternative, this effort also is unwarranted, and the no-action alternative is the preferred alternative.

  15. Factorizations and Physical Representations

    E-print Network

    M. Revzen; F. C. Khanna; A. Mann; J. Zak

    2005-08-25

    A Hilbert space in M dimensions is shown explicitly to accommodate representations that reflect the prime numbers decomposition of M. Representations that exhibit the factorization of M into two relatively prime numbers: the kq representation (J. Zak, Phys. Today, {\\bf 23} (2), 51 (1970)), and related representations termed $q_{1}q_{2}$ representations (together with their conjugates) are analysed, as well as a representation that exhibits the complete factorization of M. In this latter representation each quantum number varies in a subspace that is associated with one of the prime numbers that make up M.

  16. The transcription factor encyclopedia.

    PubMed

    Yusuf, Dimas; Butland, Stefanie L; Swanson, Magdalena I; Bolotin, Eugene; Ticoll, Amy; Cheung, Warren A; Zhang, Xiao Yu Cindy; Dickman, Christopher T D; Fulton, Debra L; Lim, Jonathan S; Schnabl, Jake M; Ramos, Oscar H P; Vasseur-Cognet, Mireille; de Leeuw, Charles N; Simpson, Elizabeth M; Ryffel, Gerhart U; Lam, Eric W-F; Kist, Ralf; Wilson, Miranda S C; Marco-Ferreres, Raquel; Brosens, Jan J; Beccari, Leonardo L; Bovolenta, Paola; Benayoun, Bérénice A; Monteiro, Lara J; Schwenen, Helma D C; Grontved, Lars; Wederell, Elizabeth; Mandrup, Susanne; Veitia, Reiner A; Chakravarthy, Harini; Hoodless, Pamela A; Mancarelli, M Michela; Torbett, Bruce E; Banham, Alison H; Reddy, Sekhar P; Cullum, Rebecca L; Liedtke, Michaela; Tschan, Mario P; Vaz, Michelle; Rizzino, Angie; Zannini, Mariastella; Frietze, Seth; Farnham, Peggy J; Eijkelenboom, Astrid; Brown, Philip J; Laperrière, David; Leprince, Dominique; de Cristofaro, Tiziana; Prince, Kelly L; Putker, Marrit; del Peso, Luis; Camenisch, Gieri; Wenger, Roland H; Mikula, Michal; Rozendaal, Marieke; Mader, Sylvie; Ostrowski, Jerzy; Rhodes, Simon J; Van Rechem, Capucine; Boulay, Gaylor; Olechnowicz, Sam W Z; Breslin, Mary B; Lan, Michael S; Nanan, Kyster K; Wegner, Michael; Hou, Juan; Mullen, Rachel D; Colvin, Stephanie C; Noy, Peter John; Webb, Carol F; Witek, Matthew E; Ferrell, Scott; Daniel, Juliet M; Park, Jason; Waldman, Scott A; Peet, Daniel J; Taggart, Michael; Jayaraman, Padma-Sheela; Karrich, Julien J; Blom, Bianca; Vesuna, Farhad; O'Geen, Henriette; Sun, Yunfu; Gronostajski, Richard M; Woodcroft, Mark W; Hough, Margaret R; Chen, Edwin; Europe-Finner, G Nicholas; Karolczak-Bayatti, Magdalena; Bailey, Jarrod; Hankinson, Oliver; Raman, Venu; LeBrun, David P; Biswal, Shyam; Harvey, Christopher J; DeBruyne, Jason P; Hogenesch, John B; Hevner, Robert F; Héligon, Christophe; Luo, Xin M; Blank, Marissa Cathleen; Millen, Kathleen Joyce; Sharlin, David S; Forrest, Douglas; Dahlman-Wright, Karin; Zhao, Chunyan; Mishima, Yuriko; Sinha, Satrajit; Chakrabarti, Rumela; Portales-Casamar, Elodie; Sladek, Frances M; Bradley, Philip H; Wasserman, Wyeth W

    2012-01-01

    Here we present the Transcription Factor Encyclopedia (TFe), a new web-based compendium of mini review articles on transcription factors (TFs) that is founded on the principles of open access and collaboration. Our consortium of over 100 researchers has collectively contributed over 130 mini review articles on pertinent human, mouse and rat TFs. Notable features of the TFe website include a high-quality PDF generator and web API for programmatic data retrieval. TFe aims to rapidly educate scientists about the TFs they encounter through the delivery of succinct summaries written and vetted by experts in the field. TFe is available at http://www.cisreg.ca/tfe. PMID:22458515

  17. Chromatin elongation factors.

    PubMed

    Svejstrup, Jesper Q

    2002-04-01

    As RNA polymerase II leaves a gene promoter to transcribe the coding region, it faces a major obstacle - nucleosomes tightly wrapped into chromatin. Mechanisms to deal with this obstacle clearly exist in cells, as transcription through chromatin is very efficient in vivo, whereas nucleosomal templates pose a considerable problem for polymerase progression in reconstituted in vitro systems. Advances in our understanding of transcriptional elongation through chromatin have been made possible recently by the identification of several accessory factors that assist polymerase in the process. Insights into the function of these factors have been gained by a combination of yeast genetics and biochemical studies in mammalian systems. PMID:11893488

  18. Associations between ethnic labels and substance use among Hispanic/Latino adolescents in Los Angeles.

    PubMed

    Unger, Jennifer B; Thing, James; Soto, Daniel Wood; Baezconde-Garbanati, Lourdes

    2014-06-01

    Self-identification with ethnic-specific labels may indicate successful ethnic identity formation, which could protect against substance use. Alternatively, it might indicate affiliation with oppositional subcultures, a potential risk factor. This study examined longitudinal associations between ethnic labels and substance use among 1,575 Hispanic adolescents in Los Angeles. Adolescents who identified as Cholo or La Raza in 9th grade were at increased risk of past-month substance use in 11th grade. Associations were similar across gender and were not confounded by socioeconomic status, ethnic identity development, acculturation, or language use. Targeted prevention interventions for adolescents who identify with these subcultures may be warranted. PMID:24779500

  19. The Structure of Factor Oracles

    Microsoft Academic Search

    Maxime Crochemore; Lucian Ilie; Emine Seid-hilmi

    2007-01-01

    The factor oracle is a relatively new data structure for the set of factors of a string. It has been introduced by Allauzen, Crochemore, and Raffinot in 1999. It may recognize non- factors (hence the name \\

  20. The Los Alamos Critical Experiments Facility Program

    SciTech Connect

    Dowdy, E.J.

    1987-01-01

    Critical assemblies of precisely known materials and reproducible and easily calculated geometries have been constructed at the Los Alamos National Laboratory since the 1940s. Initially, these assemblies were built to provide information necessary for the nuclear weapons development effort. Subsequently, intensive studies of the assemblies themselves were undertaken to provide a better understanding of the physics of the fission process and other nuclear reactions in the nuclear materials from which these machine were constructed and in other materials irradiated in these assemblies. Some of these assemblies (notably Jezebel, Flattop, Big Ten, and Godiva) have been used as benchmark assemblies to compare the results of experimental measurements and computations of certain nuclear reaction parameters. These comparisons are used to validate both the input nuclear data and the computational methods. In addition to these normally fueled benchmark assemblies, other assembly machines are fueled periodically to provide specific and detailed results for parameter sensitivity studies for a large number of applications. Some of these machines and their applications are described.

  1. Historic Manhattan Project Sites at Los Alamos

    ScienceCinema

    McGehee, Ellen

    2014-05-22

    The Manhattan Project laboratory constructed at Los Alamos, New Mexico, beginning in 1943, was intended from the start to be temporary and to go up with amazing speed. Because most of those WWII-era facilities were built with minimal materials and so quickly, much of the original infrastructure was torn down in the late '40s and early '50s and replaced by more permanent facilities. However, a few key facilities remained, and are being preserved and maintained for historic significance. Four such sites are visited briefly in this video, taking viewers to V-Site, the buildings where the first nuclear explosive device was pre-assembled in preparation for the Trinity Test in Southern New Mexico. Included is another WWII area, Gun Site. So named because it was the area where scientists and engineers tested the so-called "gun method" of assembling nuclear materials -- the fundamental design of the Little Boy weapon that was eventually dropped on Hiroshima. The video also goes to Pajarito Site, home of the "Slotin Building" and "Pond Cabin." The Slotin Building is the place where scientist Louis Slotin conducted a criticality experiment that went awry in early 1946, leading to his unfortunate death, and the Pond Cabin served the team of eminent scientist Emilio Segre who did early chemistry work on plutonium that ultimately led to the Fat Man weapon.

  2. Transportation Program: Los Alamos National Laboratory

    NSDL National Science Digital Library

    1998-01-01

    The Los Alamos National Laboratory's (LANL) has applied some of its weapons development technologies to more peaceful uses in the realm of transportation. To this end, the Transportation Program is concerned with the development of innovative transportation systems. A Fuel Cells and Alternative Fuels section highlights the development of alternative fuels for use in fuel cells. A number of documents concerned with fuel cell systems research, as well as an online fuel cell tutorial, are available here. A Materials and Manufacturing section and a Concrete Center offer documents on the application of material science to transportation systems. Also, a Modeling and Simulation section contains reports on the development of modeling and simulation tools for studying the behavior of materials when poured into a mold, the way fuel ignites in an automobile engine chamber, and crash test simulations. Though this site emphasizes industrial applications, it offers a great deal of documentation of potential interest to academic engineers and others involved in urban planning and transportation systems.

  3. Design of the Los Alamos generator installation

    SciTech Connect

    Boenig, H.J.; Schillig, J.B.; Rogers, J.D.; Huddleston, S.W.; Konkel, H.E.; Rosev, B.J.

    1989-01-01

    A 1430 MVA synchronous generator from a cancelled nuclear power plant is being installed at Los Alamos to be used as the pulsed power generator for the Confinement Physics Research Facility. The generator is mounted on a spring foundation to avoid dynamic forces from being transmitted to the substructure and the ground. A 6 MW load-commutated inverter drive will accelerate the machine from standstill to the maximum operating speed of 1800 rpm and from 1260 rpm to 1800 rpm between load pulses. The generator cooling method is being changed from hydrogen to air cooling. A current limiting fuse, with a fuse clearing current of 80 kA, will protect the generator output against short circuit currents. Changes in the excitation system are described. A status report of the installation and an approximate schedule for completing the installation are presented. The paper also addresses results of special studies and tests undertaken to evaluate the condition of the generator and to predict the behavior of some critical mechanical generator components under pulsed loading conditions. 1 ref., 4 figs., 2 tabs.

  4. Factors Affecting Photosynthesis!

    E-print Network

    Kudela, Raphael M.

    Factors Affecting Photosynthesis! Temperature Eppley (1972) Light Sverdrup's Critical Depth-493, but the general concept is still valid! ! #12;PB opt & Temperature! #12;Photosynthesis & Temperature! Remember: in the laboratory, we can measure photosynthesis versus irradiance (PvsE) and calculate Ek, Pmax, and alpha

  5. The Three Faith Factors.

    ERIC Educational Resources Information Center

    DiIulio, John J., Jr.

    2002-01-01

    Discusses whether religion can affect health and social welfare and what types of religious influences are most beneficial to the individual and society, identifying three separate but related faith factors: organic religion, programmatic religion, and ecological religion. Examines research on faith-based approaches to social and urban problems.…

  6. Robust Bayesian Factor Analysis

    ERIC Educational Resources Information Center

    Hayashi, Kentaro; Yuan, Ke-Hai

    2003-01-01

    Bayesian factor analysis (BFA) assumes the normal distribution of the current sample conditional on the parameters. Practical data in social and behavioral sciences typically have significant skewness and kurtosis. If the normality assumption is not attainable, the posterior analysis will be inaccurate, although the BFA depends less on the current…

  7. Scale Factor X

    NSDL National Science Digital Library

    2010-01-01

    In this game, students navigate a maze to get to a math challenge. The three challenges are: move blue and green "fuel cells" around to match the ratios in the given containers; measure shapes to determine the scale factors needed to make them match the given templates; determine how to place bases on a map based on clues involving proportions.

  8. A Formula for Factoring.

    ERIC Educational Resources Information Center

    Roebuck, Kay I. Meeks

    1997-01-01

    Suggests use of the quadratic formula to build understanding that connections between factors and solutions to equations work both ways. Making use of natural connections among concepts allows students to work more efficiently. Presents four sample problems showing the roots of equations. Messy quadratic equations with rational roots can be solved…

  9. Optimal power factor correction

    SciTech Connect

    Mostafa, M. (Electrical and Computer Engineering Dept., College of Engineering and Petroleum, Kuwait Univ. (KW))

    1988-08-01

    This paper discusses the different parameters affecting the economic feasibility of power factor correction. It will be shown that the specific costs of the transmission and compensation elements as well as those of the electric energy and power losses have a decisive influence on the achievable overall saving. After formulating an objective function representing this overall saving, taking also the load factor into account an analytical approach to the determination of the optimal size of the compensation equipment is presented. A generalized chart is given which enables the designer to know whether the power factor correction is feasible or not under any circumstances. Also, the most suitable degree of reactive power compensation can be directly found. The results obtained from a digital program are also given to indicate the sensitivity of the optimal compensation factor to changes in system parameters such as the specific energy loss cost and the annual rate of interest and depreciation. Moreover, the good agreement of the results of the digital computation with those determined using the suggested simple generalized chart, could be realized.

  10. Prime type III factors

    PubMed Central

    Shlyakhtenko, Dimitri

    2000-01-01

    It is shown that for each 0 < ? < 1, the free Araki–Woods factor of type III? cannot be written as a tensor product of two diffuse von Neumann algebras (i.e., is prime) and does not contain a Cartan subalgebra. PMID:11058159

  11. Probabilistic Matrix Factorization

    Microsoft Academic Search

    Ruslan Salakhutdinov; Andriy Mnih

    2007-01-01

    Many existing approaches to collaborative filtering can nei ther handle very large datasets nor easily deal with users who have very few ratings. In this paper we present the Probabilistic Matrix Factorization (PMF) model which scales linearly with the number of observations and, more importantly, performs well on the large, sparse, and very imbalanced Netflix dataset. We furth er extend

  12. Introduction to human factors

    SciTech Connect

    Winters, J.M.

    1988-03-01

    Some background is given on the field of human factors. The nature of problems with current human/computer interfaces is discussed, some costs are identified, ideal attributes of graceful system interfaces are outlined, and some reasons are indicated why it's not easy to fix the problems. (LEW)

  13. Los Alamos improves biomass-to-fuel April 26, 2013

    E-print Network

    into fuels and chemical feedstocks, reducing fossil-fuel dependence and reducing greenhouse gas emissions- 1 - Los Alamos improves biomass-to-fuel process April 26, 2013 LOS ALAMOS, N.M., April 26, 2013-derived building blocks to give new molecules that have between eight and fifteen carbons in a row. The researchers

  14. Como Solicitar Los Beneficios del Seguro del Desempleo Transcripcin

    E-print Network

    Como Solicitar Los Beneficios del Seguro del Desempleo Transcripción Bienvenido a uno de los de desempleo en California, usted ha venido al lugar correcto, y aquí estamos para servirle. Este es a recibir sus beneficios del desempleo. Cuando usted hace una llamada u oprime su botón en su computadora

  15. La deforestación y los derechos de propiedad en América Latina

    Microsoft Academic Search

    Carlos Felipe Jaramillo; Thomas Kelly

    1999-01-01

    En el presente documento se analiza la vinculación entre los derechos de propiedad y la deforestación en América Latina. Según ese análisis, hay dos esferas separadas en que las cuestiones relacionadas con la tenencia inciden sobre el interés en el desmonte, a saber, la seguridad de los derechos de propiedad individual sobre las tierras agrícolas establecidas y sus efectos sobre

  16. A LOS ALUMNOS DE LA FACULTAD DE DERECHO

    E-print Network

    Islas, León

    A LOS ALUMNOS DE LA FACULTAD DE DERECHO ¿CUENTAS CON EL 70% DE CRÈDITOS DE LA CARRERA DE LICENCIADO EN DERECHO? ¿TIENES PROMEDIO MÍNIMO DE 8.0? TE INTERESA: · REVISIÓN JURÍDICA DE EXPEDIENTES DE, DELEGACIÓN CUAUHTÉMOC, TELÉFONOS 52084787. CUPO LIMITADO. #12;A LOS ALUMNOS DE LA FACULTAD DE DERECHO

  17. The authors acknowledge the following reviewers: Los Alamos National Laboratory

    E-print Network

    of Advanced Automotive Technologies Office of Transportation Technologies Energy Efficiency and Renewable, U.S. Department of Energy JoAnn Milliken LA-UR-99-3231 Los Alamos National Laboratory Government, the US Department of Energy, nor any of their employees. The Los Alamos National Laboratory

  18. California's aqueduct offers peaking power to Los Angeles

    Microsoft Academic Search

    E. Jeffs

    1977-01-01

    The Castaic hydroelectric power project near Los Angeles, designed to recover energy expended in pumping water over the Tehachapi mountains, is described. The seven-unit plant makes use of water brought from Pyramid Lake (785 m above sea level) to Castaic Lake (462 m above sea level) by means of the 11.6 km Los Angeles tunnel. Pumped storage allows the plant

  19. La armonización de los impuestos indirectos en la Comunidad Andina

    Microsoft Academic Search

    Luis A. Arias; Alberto Barreix; Alexis Valencia; Luiz Villela

    2005-01-01

    La aprobación de las Decisiones números 599 y 600 sobre Armonización de Aspectos Sustanciales y Procedimientos de los Impuestos Tipo Valor Agregado y la Armonización de los Impuestos Tipo Selectivo al Consumo (IVA e impuestos selectivos) por la Comisión de la Comunidad Andina constituye un singular triunfo para el proceso de integración andino y un antecedente en el mundo en

  20. Los efectos medioambientales del boom y el parón inmobiliario

    Microsoft Academic Search

    Luisa Fernanda Gutierrez; Gustavo A. Marrero; Luis A. Puch

    2010-01-01

    Muchos expertos consideran el aumento registrado en las emisiones de CO2 en España desde mediados de los 90 una auténtica anomalía. Dicha anomalía podría resultar no serlo tanto cuando se relaciona la evolución de las emisiones con el boom inmobiliario. Este artículo muestra que el incremento de las emisiones coincide con un aumento continuado en el consumo energético de los

  1. El rendimiento escolar y los trastornos emocionales y comportamentales

    Microsoft Academic Search

    Luis Lozano González; Eduardo García Cueto

    2000-01-01

    Este tr abajo evalúa los trastornos emocionales y comportamentales existente entre el alumnado de un centro de enseñanza secundaria, utilizando el Youth Self Report (YSR), obser vando que las mujeres presentan una patología interna diferente a la de los hombres, más externa. Además, se centra en có - mo este tipo de patología incide en el rendimiento escolar, valorado por

  2. Valoración económica de los servicios recreativos del parque ecológico Chipinque

    Microsoft Academic Search

    Guillermo Gándara; Rufino Tamayo

    2006-01-01

    En esta investigación se realiza una estimación del valor económico del beneficio que los visitantes obtienen por disfrutar de los servicios recreativos que ofrece el Parque Chipinque, área natural ubicada en la zona metropolitana de Monterrey, México. Se utiliza el Método de Costo de Viaje estimando una función de demanda por zonas de origen en función de diferentes costos, como

  3. Texto e identidad en Los pasos perdidos de Alejo Carpentier

    Microsoft Academic Search

    Ricardo Ferrada Alarcón

    2006-01-01

    Nuestro interés en este trabajo se orienta a una zona de problemas, generada en la lectura de 'Los pasos perdidos', novela que Alejo Carpentier publicara en 1953 y de cuya importancia y vigencia como obra emergen diversas lecturas. Centralmente, vemos en ella un imaginario textual sostenido en su capacidad representativa como signo literario, donde los indicios o marcas de su

  4. Excellence in Science Los Alamos National Laboratory is operated by

    E-print Network

    test will lead to future experiments from LANL and across the nation's nuclear security enterprise Alamos National Security, LLC for DOE's National Nuclear Security Administration Los Alamos National Security, LLC 2009 LANS Board of Governors Report #12;Los Alamos National Security is dedicated

  5. LOS MAPAS CONCEPTUALES EN COSTA RICA: IDEAS NUEVAS, ODRES NUEVOS

    Microsoft Academic Search

    Julia Alonso Delgado

    Experiencia sobre la incorporación de los mapas conceptuales y CmapTools en una institución educativa costarricense. Gracias a la dinámica que se produce en la Facultad de Educación de la Universidad de Costa Rica con la visita de los doctores Joseph Novak y Alberto J. Cañas en mayo del 2002, las nuevas ideas generadas son asumidas, entre otros, por el Instituto

  6. La dimension de los espacios osculadores a una variedad algebraica

    E-print Network

    Ruiz, Jesús M.

    La dimensi´on de los espacios osculadores a una variedad algebraica Raquel MALLAVIBARRENA dimensiones de los espacios osculadores a una variedad algebraica proyectiva y su relaci´on con la geometr, espacio osculador, superficies regladas, variedades de Veronese. 1. Introducci´on Sea X una variedad

  7. Los testigos de Jehová y el consentimiento informado

    Microsoft Academic Search

    Pimentel Pérez; Hospital General de Zona; Calzada Benito Juárez

    RESUMEN Los testigos de Jehová son una joven asocia- ción religiosa mundial dirigida por Watchtower Society de Nueva York, cuyos preceptos es- tán fundamentados ad pedem literae en la Bi- blia, pero con interpretaciones originales y connotaciones sectarias. La prohibición a ser transfundidos es una norma propia, actualmente vigente y que los distingue, condicionando anta- gonismos con el área médica.

  8. Forest surveys and wildfire assessment in the Los Alamos Region; 1998-1999

    SciTech Connect

    Randy G. Balice; Jay D. Miller; Brian P. Oswald; Carl Edminster; Stephen R. Yool

    2000-06-01

    To better understand the structural characteristics of vegetation in the Los Alamos region, the authors conducted two years of field surveys and associated analyses. This report introduces field methods, lists the summarized field data, and discusses the results of preliminary spatial analyses. During 1998 and 1999, seventy-six terrestrial plant communities were sampled for topographic characteristics, soil surface features, and vegetational conditions. A nested, randomized design was used to select the plot locations and to guide the sampling of the plot. The samples included a variety of fuel types, including surface fuels and ground fuels, shrubby and small tree fuels, and overstory fuels. Species composition data were also collected. The fuels data were summarized by vegetation type and evaluated for the topographic and spatial relationships of major field categories. The results of these analyses indicate that many of the fuels categories depend on topographic factors in a linear and curvilinear fashion. In particular, middle elevations within the Los Alamos region tend to support more surface fuels and ground fuels, whereas large-diameter trees are most dense at higher elevations and are specific to community types at these elevations. Small-diameter trees occur in more dense stands at lower and middle elevations and on specific soil and topographic conditions. Areas that burned in 1954 were found to be relatively free of fuels. The implications are that the western portions of the Los Alamos region are at risk from wildfire during dry, summer periods.

  9. Efficiency of N2O5 heterogeneous uptake over Los Angeles during CalNex 2010

    NASA Astrophysics Data System (ADS)

    Brown, S. S.; Dube, B.; Wagner, N.; Roberts, J. M.; Neuman, J.; Nowak, J. B.; Pollack, I. B.; Ryerson, T. B.; Brock, C. A.; Lance, S.; Bahreini, R.; Middlebrook, A. M.; Warneke, C.; De Gouw, J. A.; Atlas, E. L.; Holloway, J. S.; Parrish, D. D.

    2011-12-01

    The nighttime nitrogen oxides, NO3 and N2O5, are important in numerous atmospheric chemical cycles that affect regional air quality. Key to understanding these cycles is the heterogeneous reaction of N2O5 on aerosol, which governs the rate of nighttime NOx loss, halogen activation through nighttime ClNO2 production and the availability of NO3 as an oxidant for highly reactive VOCs. Previous field investigations have found the efficiency of this heterogeneous uptake to be highly variable. Here we present an analysis of nighttime P-3 aircraft data over Los Angeles and adjacent desert and marine areas during CalNex 2010 to understand the factors that govern N2O5 heterogeneous uptake. The analysis will focus on the role of aerosol composition, relative humidity and marine stratus clouds. It will also illustrate the variability with altitude within the Los Angeles basin, where there were clear differences in nighttime chemistry between the shallow nocturnal boundary layer and the residual layer above it. This variability has implications for halogen activation through ClNO2 formation, which has recently been shown to be important in Los Angeles. Finally, the presentation will compare N2O5 heterogeneous chemistry during CalNex with findings from other recent field intensives.

  10. Recent UCN source developments at Los Alamos

    SciTech Connect

    Seestrom, S.J.; Anaya, J.M.; Bowles, T.J. [and others

    1998-12-01

    The most intense sources of ultra cold neutrons (UCN) have bee built at reactors where the high average thermal neutron flux can overcome the low UCN production rate to achieve usable densities of UCN. At spallation neutron sources the average flux available is much lower than at a reactor, though the peak flux can be comparable or higher. The authors have built a UCN source that attempts to take advantage of the high peak flux available at the short pulse spallation neutron source at the Los Alamos Neutron Science Center (LANSCE) to generate a useful number of UCN. In the source UCN are produced by Doppler-shifted Bragg scattering of neutrons to convert 400-m/s neutrons down into the UCN regime. This source was initially tested in 1996 and various improvements were made based on the results of the 1996 running. These improvements were implemented and tested in 1997. In sections 2 and 3 they discuss the improvements that have been made and the resulting source performance. Recently an even more interesting concept was put forward by Serebrov et al. This involves combining a solid Deuterium UCN source, previously studied by Serebrov et al., with a pulsed spallation source to achieve world record UCN densities. They have initiated a program of calculations and measurements aimed at verifying the solid Deuterium UCN source concept. The approach has been to develop an analytical capability, combine with Monte Carlo calculations of neutron production, and perform benchmark experiments to verify the validity of the calculations. Based on the calculations and measurements they plan to test a modified version of the Serebrov UCN factory. They estimate that they could produce over 1,000 UCN/cc in a 15 liter volume, using 1 {micro}amp of 800 MeV protons for two seconds every 500 seconds. They will discuss the result UCN production measurements in section 4.

  11. Risk Factors for Eating Disorders

    ERIC Educational Resources Information Center

    Striegel-Moore, Ruth H.; Bulik, Cynthia M.

    2007-01-01

    The authors review research on risk factors for eating disorders, restricting their focus to studies in which clear precedence of the hypothesized risk factor over onset of the disorder is established. They illustrate how studies of sociocultural risk factors and biological factors have progressed on parallel tracks and propose that major advances…

  12. Atomic Scattering Factors

    NSDL National Science Digital Library

    From the Lawrence Berkeley Laboratory's Center for X-Ray Optics, these "atomic scattering factors are based upon photoabsorption measurements of elements in their elemental state." These easy-to-use tables allow users to search out atomic scattering factor data by element and look up the x-ray properties of elements, the index of refraction for a compound material, the x-ray attenuation length of a solid, the x-ray transmission of a solid or a gas, and more. Most of the tables are accessed by way of an online query form with variables such as material, density, and photon energy range entered by the user. Most outputs come in plot form for quick viewing, or results may be retrieved as a text or postscript file for use with a personal plotting software.

  13. Prognostic factors for melanoma.

    PubMed

    Wisco, Oliver J; Sober, Arthur J

    2012-07-01

    The current melanoma staging system, as defined by the American Joint Committee on Cancer (AJCC), is the standard by which melanoma prognosis is determined. This article focuses on the components of the AJCC melanoma staging system regarding patient prognosis. In addition, this article summarizes the other commonly researched clinical and histologic melanoma prognostic factors and reviews the recent advancements in genetic biomarkers associated with prognosis. PMID:22800552

  14. The Fas Death Factor

    Microsoft Academic Search

    Shigekazu Nagata; Pierre Golstein

    1995-01-01

    Fas ligand (FasL), a cell surface molecule belonging to the tumor necrosis factor family, binds to its receptor Fas, thus inducing apoptosis of Fas-bearing cells. Various cells express Fas, whereas FasL is expressed predominantly in activated T cells. In the immune system, Fas and FasL are involved in down-regulation of immune reactions as well as in T cell-mediated cytotoxicity. Malfunction

  15. Factors Affecting Gummy Butter.

    E-print Network

    Leighton, R. E. (Rudolph Elmo); Moore, A. V.

    1952-01-01

    LIBRARY A. & M. COLLEGE OF TEXAS Factors Affecting Gummy Butter DIGEST Among the Southcentral States, Texas ranks next to Oklahoma and Kentucky in creamery butter production; in farm butter production Texas is third in the nation...-following Alabama and North Carolina. Second only to flavor in the importance of eating quality is the body of butter. Body is evaluated by the consumer by the manner in which the butter melts or spreads. It is often considered that cows eating cottonseed...

  16. Retroviral factors promoting infectivity.

    PubMed

    Cuccurullo, Emilia Cristiana; Valentini, Chiara; Pizzato, Massimo

    2015-01-01

    The ability of a virus particle to establish an infectious event is a fundamental property required for viral propagation and survival. Retrovirus invasion of target cells is a multistep process that begins with entry into the cytoplasm and culminates with the integration of the proviral genome into the host DNA. Along this journey, many obstacles await the retrovirus particle and undermine its infectivity. Host-cell barriers to retrovirus infection can either be basic structural components of the eukaryotic cell or specific antiretroviral activities developed by the cell to prevent the retroviral invasion. Resulting from a long host-parasite coevolution, retroviruses have developed auxiliary factors that promote infectivity by conferring the virion the ability to overcome several cellular obstacles, which interfere with the infection process. Here, we provide an overview of different retroviral auxiliary factors that promote virion infectivity, comparing their mechanism of action and highlighting common mechanistic strategies. Special attention is given to infectivity factors that remain enigmatic in the biology of retroviruses. PMID:25595806

  17. Risk factors for cancer

    SciTech Connect

    Lyman, G.H. (Medicine Service, H. Lee Moffitt Cancer Center, Tampa, FL (United States))

    1992-09-01

    It is no longer reasonable to divide cancers into those that are genetic in origin and those that are environmental in origin. With rare exception, carcinogenesis involves environmental factors that directly or indirectly exert a change in the cell's genome. Virtually all causes of cancer are multifactorial, sometimes involving an inherited predisposition to the carcinogenic effects of environmental factors, which include chemicals, ionizing radiation, and oncogenic virus. Carcinogenesis is a multistep process including induction, promotion, and progression. Initiation requires an irreversible change in the cellular genome, whereas promotion is commonly associated with prolonged and reversible exposure. Tumor progression results in genotypic and phenotypic changes associated with tumor growth, invasion, and metastasis. Most information on human cancer risk is based on epidemiologic studies involving both exposed and unexposed individuals. The quality of such studies depends on their ability to assess the strength of any association of exposure and disease and careful attention to any potential bias. Few cancers are inherited in a Mendelian fashion. Several preneoplastic conditions, however, are clearly inherited and several malignancies demonstrate weak familial patterns. Environmental factors may exert their effect on DNA in a random fashion, but certain consistent changes, including specific translocations of genetic information, are often found. Currently, there is great interest in the close proximity of certain oncogenes governing growth control to the consistent chromosomal changes observed. Such changes may represent a final common pathway of action for environmental carcinogens. Sufficient laboratory and epidemiologic evidence exists to establish a causal association of several chemical agents with cancer.

  18. The Los Angeles Riots Revisited: The Changing Face of the Los Angeles Unified School District and the Challenge for Educators

    ERIC Educational Resources Information Center

    Davis, Donna M.

    2007-01-01

    This article provides a brief history of the Los Angeles Unified School District (LAUSD), including an analysis of the demographic shifts and the tensions between the African American and Korean American communities at the time of the Los Angeles riots in 1992. The article includes my own experiences teaching high school English during the…

  19. Todos los clientes no son iguales: una perspectiva financiera sobre servicio al cliente para los gerentes de mercadeo

    Microsoft Academic Search

    Harold Lee Koch

    1999-01-01

    Los gerentes colombianos estamos pensando en Servicio al Cliente como la próxima ventaja competitiva y una ayuda para contrarrestar los efectos de la recesión actual. Estamos cansados de buscar siempre en nuestra caja de herramientas de mercadeo y encontrar solamente el martillo del precio. Para diferenciamos de la competencia, hacerle al cliente menos sensible una diferencia en precio y encontrar

  20. EL ABOGADO DEL NIÑO COMO GARANTE DEL PLENO EJERCICIO DE LOS DERECHOS DE LOS MENORES DE EDAD

    Microsoft Academic Search

    Lisbeth Rodríguez Martín; Yanelys Palmero Martín

    2012-01-01

    El tratamiento de la niñez y sus derechos resulta tema de interés universal para las ciencias jurídicas modernas, debido a las nuevas tendencias de protección surgidas a partir de la celebración de los Congresos Panamericanos del Niño y la Convención sobre los Derechos del Niño. De modo, que para las ciencias jurídicas cubanas se hace de suma importancia el estudio

  1. MSW Social Work Experience 1995-97. Los Angeles County Mental Health, Los Angeles, Ca. Evaluation of AB3632,

    E-print Network

    Ahmad, Sajjad

    1 MSW Social Work Experience Consultant 1995-97. Los Angeles County Mental Health, Los Angeles, Ca consisting mainly of skid row alcoholics who were overflow from the main county hospital. MSW Social Work care center for their children. Prior to MSW Social Work 11973-1976. Casemanagement. L.A. County Health

  2. -ESTUDIO Y TRATAMIENTO DEL DOLOR Los alumnos que hayan cursado los crditos obligatorios en el Mster Oficial que se

    E-print Network

    Rey Juan Carlos, Universidad

    procedentes de otros estudios oficiales de posgrado. En esos casos, la transferencia y reconocimiento de- ESTUDIO Y TRATAMIENTO DEL DOLOR Los alumnos que hayan cursado los créditos obligatorios en el Máster Oficial que se imparte en la actualidad, podrán solicitar su adaptación al nuevo plan de estudios

  3. Cambios de estilos de vida y los procesos de producción de la vivienda: los nuevos espacios sociales de Cuenca, Ecuador

    Microsoft Academic Search

    Stella Lowder

    2007-01-01

    El concepto de espacio social es complejo, comprendiendo desde la comunidad establecida en un sitio, el basado sobre la rutina diaria y la red de interacciones sociales, hasta el espacio discontinuo de los flujos de la edad informativa. La configuración y el territorio de estos espacios son dinámicos, provocando la necesidad de que sean reafirmados por sus adherentes. Los procesos

  4. Perfeccionamiento de los procesos universitarios. Un acercamiento a las herramientas de gestión

    Microsoft Academic Search

    Reynaldo Velázquez Zaldívar; Marisol Pérez Campaña; Leonardo Ortega Rosales

    2009-01-01

    El presente material tiene como objetivo mostrar un acercamiento a algunas de las herramientas actuales para el perfeccionamiento de la gestión universitaria. Se hace referencia a las tendencias principales del desarrollo de la universidad contemporánea así como a tecnologías de gestión que pueden contribuir al logro de la competitividad y excelencia en las Instituciones de Educación Suprior. Se hace énfasis

  5. From compatible factorization to near-compatible factorization

    NASA Astrophysics Data System (ADS)

    Aldiabat, Raja'i.; Ibrahim, Haslinda

    2014-12-01

    A compatible factorization of order ?, is an ?× ?-1/2 array in which the entries in row i form a near-one-factor with focus i, and the triples associated with the rows contain no repetitions. In this paper, we aim to amend this compatible factorization so that we can display ?(?-1)/2 - 2?/3 triples with the minimum repeated triples. Throughout this paper we propose a new type of factorization called near-compatible factorization. First, we present the compatible factorization towards developing a near-compatible factorization. Second, we discuss briefly the necessary and sufficient conditions for the existence of near-compatible factorization. Then, we exemplify the construction for case ? = 9 as a groundwork in developing near-compatible factorization.

  6. Integrated review software advances at Los Alamos

    SciTech Connect

    Klosterbuer, S. F. (Shirley F.); Michel, K. D. (Kelly D.); Betts, S. E. (Stephen E.); Determan, J. C. (John C.); Longo, J. F. (Joseph F.); Parker, R. F. (Robert F.); Pelowitz, D. G. (David G.); Rothrock, R. B. (Richard B.); Schneider, C. M. (Connie M.); Nordquist, H. M. (Heather M.)

    2004-01-01

    Since 1988, Los Alamos National Laboratory (LANL) has been developing software for unattended monitoring systems. These systems are composed of three categories of software: acquisition, collection and review. The data acquisition software is contained in modular instrumentation distributed throughout facilities to continuously acquire data from devices ranging from radiation detectors to cameras to binary switches. The data collection software runs on computers connected to the instruments and offloads and stores the acquired data. The review software enables the end user to quickly and easily examine the data collected from these different systems and compare the results to declared operator activities. This paper addresses the review software. The original standalone review software processed only radiation data. This software was expanded to include new programs (tools) to display and correlate video and operator declarations and added an interface to the standard neutron coincidence counter analysis program. This expanded review software containing multiple review tools is referred to collectively as the Integrated Review Software (IRS). The IRS continues to expand and evolve. Two primary IRS developments will be described in this paper. First, the IRS was expanded to include review tools to display and analyze new data types. Position Review was developed to display Global Positioning System (GPS) location data to aid in tracking radiation movements. Isotopic Review is being developed to provide a link to the standard gamma isotopic analysis software. In addition significant enhancements are being added to the existing review tools such as Operator Review, Radiation Review and Digital Video Review. A second IRS development is to produce standardized components with published interfaces enabling other parties to produce custom components that plug into review software. It is anticipated that there will be four primary types of components that could be developed by any party: import, analysis, display and report. In addition there are some common manager components that perform the same task for all the IRS review tools. Several import components as well as two manager components have been developed and are now being used in the latest version of the IRS.

  7. Neutron quality factor

    SciTech Connect

    NONE

    1995-06-01

    Both the International Commission on Radiological Protection (ICRP) and the National Council on Radiation Protection and Measurements (NCRP) have recommended that the radiation quality weighting factor for neutrons (Q{sub n}, or the corresponding new modifying factor, w{sub R}) be increased by a value of two for most radiation protection practices. This means an increase in the recommended value for Q{sub n} from a nominal value of 10 to a nominal value of 20. This increase may be interpreted to mean that the biological effectiveness of neutrons is two times greater than previously thought. A decision to increase the value of Q{sub n} will have a major impact on the regulations and radiation protection programs of Federal agencies responsible for the protection of radiation workers. Therefore, the purposes of this report are: (1) to examine the general concept of {open_quotes}quality factor{close_quotes} (Q) in radiation protection and the rationale for the selection of specific values of Q{sub n}; and (2) to make such recommendations to the Federal agencies, as appropriate. This report is not intended to be an exhaustive review of the scientific literature on the biological effects of neutrons, with the aim of defending a particular value for Q{sub n}. Rather, the working group examined the technical issues surrounding the current recommendations of scientific advisory bodies on this matter, with the aim of determining if these recommendations should be adopted by the Federal agencies. Ultimately, the group concluded that there was no compelling basis for a change in Q{sub n}. The report was prepared by Federal scientists working under the auspices of the Science Panel of the Committee on Interagency Radiation Research and Policy Coordination (CIRRPC).

  8. Urban health care in transition: challenges facing Los Angeles County.

    PubMed

    Long, S K; Zuckerman, S

    1998-01-01

    The authors examine the Medicaid Section 1115 Demonstration Project currently underway in Los Angeles County. The waiver was designed as part of a response to a financial crisis the Los Angeles County Department of Health Services (LACDHS) faced in 1995. It provides financial relief to give the county time to restructure its system for serving the medically indigent population. Los Angeles County's goal is to reduce its traditional emphasis on emergency room and hospital care by building an integrated system of community-based primary, specialty, and public health care. This case study describes activities completed through the spring of 1997, approximately 1 year after the waiver was approved. PMID:10387424

  9. Teoría teatral y teatro puertorriqueño de los 80

    E-print Network

    Melé ndez, Priscilla

    1992-04-01

    , aunque sí reflejan el período en que fueron escritos los textos o los ensayos críticos. He intentado corroborar el mayor número de fechas posibles, pero aún así será necesario que el investigador que un futuro utilice este material, continúe la pesquiza...SPRING 1992 151 Teoría teatral y teatro puertorriqueño de los 80* Priscilla Meléndez A Luis Rafael Sánchez A Rosa Luisa Márquez [E]l teatro tiene su propio sentido-no es un "medio de difusión" ni una "industria" ni una parte de la farándula ni...

  10. Factors and Multiples Puzzle

    NSDL National Science Digital Library

    This puzzle, played with cards on a board (downloadable file), provides an interesting context in which students can apply their knowledge of number properties. Students attempt to arrange 25 numbers and 10 property headings into a 5 by 5 grid so that each number satisfies two conditions. Properties addressed include primes, square and triangular numbers, specific sets of multiples and factors, and parity. It can be worked individually or in small groups cooperatively. The Teachers' Notes page offers suggestions for implementation, discussion questions, ideas for extension and support, and links to an article, "Using Games in the Classroom" (catalogued separately).

  11. Nucleon elastic form factors

    SciTech Connect

    D. Day

    2007-03-01

    The nucleon form factors are still the subject of active investigation even after an experimental effort spanning 50 years. This is because they are of critical importance to our understanding of the electromagnetic properties of nuclei and provide a unique testing ground for QCD motivated models of nucleon structure. Progress in polarized beams, polarized targets and recoil polarimetry have allowed an important and precise set of data to be collected over the last decade. I will review the experimental status of elastic electron scattering from the nucleon along with an outlook for future progress.

  12. Factor-multiple Chains

    NSDL National Science Digital Library

    This problem offers opportunities for students to reinforce their understanding of factors and multiples and provides them the chance to justify their solutions. The goal is for the students to create number chains of four whole numbers that can range from 2 to 100 and each consecutive number is a multiple of the previous number. The Teachers' Notes page offers suggestions for implementation, key discussion questions, ideas for extension and support, and a link to a spreadsheet for students to experiment with placing numbers in specific boxes in the chain.

  13. Los campos de concentración en Europa. Algunas consideraciones sobre su definición, tipología y estudios comparados

    Microsoft Academic Search

    Jan Stanis?aw Ciechanowski

    2005-01-01

    El artículo presenta el problema de los campos de concentración en Europa durante la Segunda Guerra Mundial y la posguerra. Aborda el origen y funcionamiento de los campos nazis y soviéticos, y presenta la perspectiva comparada de los campos de los países totalitarios con los campos de prisioneros de guerra y de internamiento, también denominados «de concentración». Para este fin

  14. Risk and Protective Factors for Drug Use among Latino Boys and Girls.

    ERIC Educational Resources Information Center

    Felix-Ortiz, Maria; Newcomb, Michael D.

    Risk and protective factor indices were developed to examine vulnerability to drug use among Latino high school students. Survey data was collected from 516 Latino 9th and 10th grade youth in the Los Angeles (California) area. Frequency and quantity of use data were collected for a range of drugs including inhalants, cocaine, and other hard drugs.…

  15. Factors in risk perception

    PubMed

    Sjoberg

    2000-02-01

    Risk perception is a phenomenon in search of an explanation. Several approaches are discussed in this paper. Technical risk estimates are sometimes a potent factor in accounting for perceived risk, but in many important applications it is not. Heuristics and biases, mainly availability, account for only a minor portion of risk perception, and media contents have not been clearly implicated in risk perception. The psychometric model is probably the leading contender in the field, but its explanatory value is only around 20% of the variance of raw data. Adding a factor of "unnatural risk" considerably improves the psychometric model. Cultural Theory, on the other hand, has not been able to explain more than 5-10% of the variance of perceived risk, and other value scales have similarly failed. A model is proposed in which attitude, risk sensitivity, and specific fear are used as explanatory variables; this model seems to explain well over 30-40% of the variance and is thus more promising than previous approaches. The model offers a different type of psychological explanation of risk perception, and it has many implications, e.g., a different approach to the relationship between attitude and perceived risk, as compared with the usual cognitive analysis of attitude. PMID:10795334

  16. Factors regulating cheese shreddability.

    PubMed

    Childs, J L; Daubert, C R; Stefanski, L; Foegeding, E A

    2007-05-01

    Two sets of cheeses were evaluated to determine factors that affect shred quality. The first set of cheeses was made up of 3 commercial cheeses, Monterey Jack, Mozzarella, and process. The second set of cheeses was made up of 3 Mozzarella cheeses with varying levels of protein and fat at a constant moisture content. A shred distribution of long shreds, short shreds, and fines was obtained by shredding blocks of cheese in a food processor. A probe tack test was used to directly measure adhesion of the cheese to a stainless-steel surface. Surface energy was determined based on the contact angles of standard liquids, and rheological characterization was done by a creep and recovery test. Creep and recovery data were used to calculate the maximum and initial compliance and retardation time. Shredding defects of fines and adhesion to the blade were observed in commercial cheeses. Mozzarella did not adhere to the blade but did produce the most fines. Both Monterey Jack and process cheeses adhered to the blade and produced fines. Furthermore, adherence to the blade was correlated positively with tack energy and negatively with retardation time. Mozzarella cheese, with the highest fat and lowest protein contents, produced the most fines but showed little adherence to the blade, even though tack energy increased with fat content. Surface energy was not correlated with shredding defects in either group of cheese. Rheological properties and tack energy appeared to be the key factors involved in shredding defects. PMID:17430914

  17. Perspective View, SRTM / Landsat, Los Angeles, Calif

    NASA Technical Reports Server (NTRS)

    2002-01-01

    Los Angeles, Calif., is one of the world's largest metropolitan areas with a population of about 15 million people. The urban areas mostly cover the coastal plains and lie within the inland valleys. The intervening and adjacent mountains are generally too rugged for much urban development. This in large part because the mountains are 'young', meaning they are still building (and eroding) in this seismically active (earthquake prone) region.

    Earthquake faults commonly lie between the mountains and the lowlands. The San Andreas fault, the largest fault in California, likewise divides the very rugged San Gabriel Mountains from the low-relief Mojave Desert, thus forming a straight topographic boundary between the top center and lower right corner of the image. We present two versions of this perspective image from NASA's Shuttle Radar Topography Mission (SRTM): one with and one without a graphic overlay that maps faults that have been active in Late Quaternary times (white lines). The fault database was provided by the U.S. Geological Survey.

    For the annotated version of this image, please select Figure 1, below: [figure removed for brevity, see original site] (Large image: 2 mB jpeg)

    The Landsat image used here was acquired on May 4, 2001, about seven weeks before the summer solstice, so natural terrain shading is not particularly strong. It is also not especially apparent given a view direction (northwest) nearly parallel to the sun illumination (shadows generally fall on the backsides of mountains). Consequently, topographic shading derived from the SRTM elevation model was added to the Landsat image, with a false sun illumination from the left (southwest). This synthetic shading enhances the appearance of the topography.

    Landsat has been providing visible and infrared views of the Earth since 1972. SRTM elevation data matches the 30-meter (98-foot) resolution of most Landsat images and substantially helps in analyzing the large and growing Landsat image archive. This Landsat 7 Thematic Mapper image was provided to the SRTM project by the United States Geological Survey, Earth Resources Observation Systems (EROS) Data Center, Sioux Falls, S.D.

    Elevation data used in this image was acquired by the SRTM aboard the Space Shuttle Endeavour, launched on Feb. 11, 2000. SRTM used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. SRTM was designed to collect 3-D measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter (approximately 200-foot) mast, installed additional C-band and X-band antennas, and improved tracking and navigation devices. The mission is a cooperative project between NASA, the National Imagery and Mapping Agency (NIMA) of the U.S. Department of Defense and the German and Italian space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, Calif., for NASA's Earth Science Enterprise, Washington, D.C.

    Size: View width 134 kilometers (83 miles); view distance 150 kilometers (93 miles) Location: 34.3 degrees North latitude, 118.4 degrees West longitude Orientation: View west-northwest, 1.8 X vertical exaggeration Image Data: Landsat Bands 3, 2+4, 1 as red, green, blue, respectively Original Data Resolution: SRTM 1 arcsecond (30 meters or 98 feet), Landsat 30 meters (98 feet) Graphic Data: earthquake faults active in Late Quaternary times Date Acquired: February 2000 (SRTM), May 4, 2001 (Landsat).

  18. Determining the Number of Factors in Approximate Factor Models

    Microsoft Academic Search

    Jushan Bai; Serena Ng

    2002-01-01

    In this paper we develop some statistical theory for factor models of large dimen- sions. The focus is the determination of the number of factors, which is an unresolved issue in the rapidly growing literature on multifactor models. We propose a panel Cp criterion and show that the number of factors can be consistently estimated using the criterion. The theory

  19. Factors affecting growth factor activity in goat milk.

    PubMed

    Wu, F Y; Tsao, P H; Wang, D C; Lin, S; Wu, J S; Cheng, Y K

    2006-06-01

    Growth factors that are present in goat milk may be responsible for its beneficial effects on the digestive system as described in ancient Chinese medical texts. To develop a nutraceutical product rich in growth factors for promoting gastrointestinal health, it is essential to collect milk with consistently high growth factor activity. Therefore, we investigated the factors affecting growth factor activity in goat milk. Among the 5 breeds of dairy goats tested, milk from Nubian goats had the highest growth factor activity. Tight-junction leakage induced by a 24-h milking interval did not increase growth factor activity in the milk. Milk collected from pregnant does had a significantly higher growth factor activity than milk collected postpartum. Growth factor activity decreased during the first 8 wk of lactation, fluctuated thereafter, and then increased dramatically after natural mating. During wk 1 to 8, growth factor activity was inversely correlated with milk yield and week of lactation. No correlation was observed during wk 9 to 29. After natural mating of the goats, the growth factor activity in the milk correlated significantly with somatic cell count and conductivity (a measure of membrane permeability), and correlated inversely with milk yield. Based on the above data, goat milk with higher growth factor activity could be selectively collected from Nubian pregnant does. PMID:16702258

  20. Determining the Number of Factors in Approximate Factor Models

    Microsoft Academic Search

    Jushan Bai; Serena Ng

    2000-01-01

    In this paper we develop some econometric theory for factor models of large dimensions. The focus is the determination of the number of factors, which is an unresolved issue in the rapidly growing literature on multifactor models. We propose some panel C(p) criteria and show that the number of factors can be consistently estimated using the criteria. The theory is

  1. Políticas, vigilancia y acceso de los menores de edad a los cigarros en la

    Microsoft Academic Search

    Ciudad de México; María Jesús Hoy

    2006-01-01

    In Mexico and other countries, the accessibility that minors have to products derived from tobacco -mainly cigarettes- is a primary contributing factor to smoking, and is currently one of the main public health challenges worldwide. In the fight against tobacco use, effective legislation for decreasing production, distribution and the sale of tobacco products is indispensable to the creation of conditions

  2. 1993 Northern goshawk inventory on portions of Los Alamos National Laboratory, Los Alamos, NM. Final report

    SciTech Connect

    Sinton, D.T.; Kennedy, P.L. [Colorado State Univ., Fort Collins, CO (United States). Dept. of Fishery and Wildlife Biology

    1994-06-01

    Northern goshawks (Accipiter gentilis) (hereafter referred to as goshawk) is a large forest dwelling hawk. Goshawks may be declining in population and reproduction in the southwestern United States. Reasons for the possible decline in goshawk populations include timber harvesting resulting in the loss of nesting habitat, toxic chemicals, and the effects of drought, fire, and disease. Thus, there is a need to determine their population status and assess impacts of management activities in potential goshawk habitat. Inventory for the goshawk was conducted on 2,254 ha of Los Alamos National Laboratory (LANL) to determine the presence of nesting goshawks on LANL lands. This information can be incorporated into LANL`s environmental management program. The inventory was conducted by Colorado State University personnel from May 12 to July 30, 1993. This report summarizes the results of this inventory.

  3. Status of the Los Alamos proton storage ring

    SciTech Connect

    Cooper, R.K.; Spalek, G.

    1981-01-01

    The Proton Storage Ring for the Weapons Neutron Research Facility of the Los Alamos National Laboratory is reviewed as a construction project. The current status of construction and design is outlined.

  4. Articulating the urban boundary : integrating Bogota with Los Cerros Orientales

    E-print Network

    Bernal, Juan Andres

    2013-01-01

    Los Cerros Orientales, a ridge of mountains that spans the eastern edge of Bogota are the most iconic and monumental feature of the city. They were also critical in the city's history as they provided the resources to ...

  5. Breve panorama del teatro en Ecuador durante los años 80

    E-print Network

    Almeida Naveda, Eduardo

    1992-04-01

    SPRING 1992 87 Breve panorama del teatro en Ecuador durante los años 80 Eduardo Almeida Naveda Las condiciones socio-económicas y la ausencia de políticas culturales firmemente estructuradas en el país no han permitido una permanente actividad...

  6. Explosive Flux Compression:. 50 Years of LOS Alamos Activities

    NASA Astrophysics Data System (ADS)

    Fowler, C.; Thomson, D.; Garn, W.

    2004-11-01

    Los Alamos flux compression activities are surveyed, mainly through references in view of space limitations. However, two plasma physics programs done with Sandia National Laboratory are discussed in more detail.

  7. Fomento de concientización acerca de los estudios clínicos

    Cancer.gov

    Fomento de concientización acerca de los estudios clínicos en comunidades multiculturales por el Instituto Nacional del Cáncer En las comunidades de color, las palabras "estudio clínico" o "estudio de investigación" algunas veces causan preocupación

  8. Los Angeles Library Fire--Learning the Hard Way.

    ERIC Educational Resources Information Center

    Morris, John

    1987-01-01

    Describes the damage and salvage efforts resulting from the burning of the Los Angeles Central Library in 1986, and makes several recommendations for fire and arson prevention measures and contingency salvage plans. (CLB)

  9. Teatro Abierto '83: La vuelta a los orígenes

    E-print Network

    Giella, Miguel Á ngel

    1983-10-01

    ) Sergio Renán, Agustín Alezzo, Nestor Romero y Julio Chávez (invitado) Los festejos Osvaldo Dragón, Osear Viale, Elio Gallipoli y Roberto Paganini Beatriz Matar, Jaime Kogan y Jorge Hacker Hoy se comen al flaco Mauricio Kartun, Abelardo Castillo y...

  10. Explosive Flux Compression: 50 Years of Los Alamos Activities

    SciTech Connect

    Fowler, C.M.; Thomson, D.B.; Garn, W.B.

    1998-10-18

    Los Alamos flux compression activities are surveyed, mainly through references in view of space limitations. However, two plasma physics programs done with Sandia National Laboratory are discussed in more detail.

  11. Glaciares de los Andes Tropicales vctimas del Cambio Climtico

    E-print Network

    Rabatel, Antoine

    tiempo hasta que volví a ver otros. He tenido la gran suerte de visitar algunos de los más dramáticos del mundo, en Colombia, Ecuador, Perú, Bolivia, Chile, Argentina. Llegué en mis viajes hasta la Antártida

  12. Mapping the earthquake hazards of the Los Angeles region.

    USGS Publications Warehouse

    Ziony, J.I.; Tinsley, J.C.

    1983-01-01

    Discusses examples of fault, shaking and ground-failure hazards taken from recent studies of the Los Angeles region. These should provide an improved basis for delineating geographic variations in local earthquake hazards. -M.Barrett

  13. Shuttle Endeavour Flyover of Los Angeles Landmarks - Duration: 15 minutes.

    NASA Video Gallery

    Space shuttle Endeavour atop NASA's Shuttle Carrier Aircraft flew over many Los Angeles area landmarks on its final ferry flight Sept. 21, 2012, including the Coliseum, the Hollywood Sign, Griffith...

  14. Periodic Table of Elements: Los Alamos National Laboratory

    Science.gov Websites

    navigation | main content| footer navigation Los Alamos National Laboratory Search or search scientific literature at the Research Library Phone Periodic Table of Elements:...

  15. Materials Science & Technology, MST: Los Alamos National Laboratory

    Science.gov Websites

    navigation | main content| footer navigation Los Alamos National Laboratory Search or search scientific literature at the Research Library Phone Materials Science and...

  16. Review of liquid metal heat pipe work at Los Alamos

    SciTech Connect

    Reid, R.S.; Merrigan, M.A.; Sena, J.T.

    1990-01-01

    A survey of space-power related liquid metal heat pipe work at Los Alamos National Laboratory is presented. Heat pipe development at Los Alamos has been on-going since 1963. Heat pipes were initially developed for thermionic nuclear-electrical power production in space. Since then Los Alamos has developed liquid metal heat pipes for numerous applications related to high temperature systems in both the space and terrestrial environments. Some of these applications include thermionic electrical generators, thermoelectric energy conversion (both in-core and direct radiation), thermal energy storage, hypersonic vehicle leading edge cooling, and heat pipe vapor laser cells. Some of the work performed at Los Alamos has been documented in internal reports that are often little-known. A representative description and summary of progress in space-related liquid metal heat pipe technology is provided followed by a reference section citing sources where these works may be found. 53 refs.

  17. South Central Los Angeles: A Community in Transition.

    ERIC Educational Resources Information Center

    Lum, Lydia

    2001-01-01

    Discusses how Los Angeles Southwest College perhaps best illustrates the rising tide of Latinos and other minorities sweeping into higher education institutions of deeply steeped Black heritage, and the challenges and new growing pains such schools face. (EV)

  18. Activation of Factor IX by the Reaction Product of Tissue Factor and Factor VII: Additional Pathway for Initiating Blood Coagulation

    Microsoft Academic Search

    Bjarne Osterud; Samuel I. Rapaport

    1977-01-01

    A study was carried out on mechanisms, independent of activated Factor XI, capable of activating Factor IX. The reaction product of tissue factor and Factor VII functioned as a potent Factor IX activator in the assay system used. Activated Factor IX itself activated Factor X; thrombin failed to activate Factor IX. Sodium dodecyl sulfate\\/polyacrylamide gel electrophoresis confirmed that the reaction

  19. El teatro cubano de los 80: Creación versus oficialidad

    E-print Network

    Correa, Armando

    1992-04-01

    gesticula un discurso. Tras él cuelga la bandera soviética. Delante de la tribuna leninista Los Beatles interpretan, en una plataforma, su canción Revolution. Globos terráqueos flotan sobre ellos. Entres los globos terráqueos Marilyn Monroe desciende... por un tubo, para bailar en otra plataforma. . . . Delante de la plataforma de Marilyn, Charles Chaplin hace bailar dos panecillos sobre una mesa. Marilyn sonsaca a Chaplin. Chaplin baila en patines con John Lennon. Marilyn se come un panecillo y...

  20. Strategic defense initiatives at Los Alamos National Laboratory

    SciTech Connect

    Rockwood, S.D.

    1985-01-01

    This presentation reviews the Strategic Defense Initiative (SDI) programs at Los Alamos National Laboratory, noting especially the needs for and applications of optics and optical technologies. Table I lists the various activities at Los Alamos contributing to SDI programs. The principal, nonnuclear SDI programs are: (1) the free-electron laser, and (2) neutral particle beams. Both should be considered as potential long-range-kill systems, but still in the futuristic category.

  1. Contact metamorphism in the Los Santos W skarn (NW Spain)

    Microsoft Academic Search

    S. M. Timón; M. C. Moro; M. L. Cembranos; A. Fernández; J. L. Crespo

    2007-01-01

    Summary  The intrusion of the Lower Permian Los Santos-Valdelacasa granitoids in the Los Santos area caused contact metamorphism of\\u000a Later Vendian-Lower Cambrian metasediments. High grade mineral assemblages are confined to a 7?km wide contact aureole. Contact\\u000a metamorphism was accompanied by intense metasomatism and development of skarns, and it generated the following mineral assemblages:\\u000a diopside, forsterite, phlogopite (±clintonite) and humites and spinel-bearing

  2. Factors affecting dystocia in cattle.

    PubMed

    Zaborski, D; Grzesiak, W; Szatkowska, I; Dybus, A; Muszynska, M; Jedrzejczak, M

    2009-06-01

    The paper reviews the various factors affecting dystocia in cattle. It is based mainly on the recent studies found in the literature of the subject but refers occasionally to some older papers as well. The factors are grouped into four main categories: direct factors, phenotypic factors related to calf and cow, non-genetic and genetic factors. The first group includes malpresentations and uterine torsion. The second one includes: calf birth weight, multiple calvings, perinatal mortality, cow pelvic area, cow body weight and body condition at calving, gestation length. The non-genetic factors are: cow age and parity, year and season of calving, place of calving, maintenance practises, disorders, calf sex and nutrition. Other non-genetic factors are the level of hormones in the periparturient period, in vitro production of embryos and embryo cloning. Finally, the genotypes of cow, bull and calf, inbreeding, muscular hypertrophy, selection and quantitative trait loci form the fourth group of genetic factors. PMID:19055561

  3. The 'cancer cachectic factor'.

    PubMed

    Tisdale, Michael J

    2003-02-01

    The object of this study was to summarize information on catabolic factors produced by tumours which lead to tissue catabolism in cancer cachexia and to use this information for the development of effective therapy. The study population was made up of patients with cancer cachexia and weight loss greater than 1 kg month(-1). They had a varied range of carcinomas, particularly pancreatic, but also of the breast, ovary, lung, colon and rectum. Cachectic factors were isolated by standard biochemical methods, and the mechanism of tissue catabolism was evaluated in vitro and in vivo. We isolated a 24-kDa sulphated glycoprotein produced by cachexia-inducing murine and human tumours, which induces catabolism of myofibrillar proteins in skeletal muscle and for this reason has been named proteolysis-inducing factor (PIF). PIF was shown to be present in a diverse range of carcinomas in patients whose rate of weight loss exceeded 1.0 kg month(-1). Administration of PIF to normal mice produced a rapid decrease in body weight, which arose primarily from a loss of skeletal muscle, accompanied by increased mRNA levels for ubiquitin, the ubiquitin-carrier protein (E2(14k)), and proteasome subunits. This suggests that PIF induces protein catabolism through an increased expression of the key components of the ATP-ubiquitin-dependent proteolytic pathway. The action of PIF was attenuated both in vitro and in vivo by eicosapentaenoic acid (EPA). Oral EPA has been found to stabilize the body weight of patients with advanced pancreatic cancer and, when combined with an energy- and protein-rich nutritional supplement, to produce weight gain arising solely from an increase in lean body mass. Nutritional supplementation alone is unable to reverse the process of muscle wasting in cancer patients, since this arises from activation of the ubiquitin proteasome pathway by PIF, which is independent of nutrient intake. EPA is able to down-regulate the increased expression of this pathway and prevents muscle wasting in cancer patients. PMID:12560934

  4. Los Alamos low-level waste performance assessment status

    SciTech Connect

    Wenzel, W.J.; Purtymun, W.D.; Dewart, J.M.; Rodgers, J.E. (comps.)

    1986-06-01

    This report reviews the documented Los Alamos studies done to assess the containment of buried hazardous wastes. Five sections logically present the environmental studies, operational source terms, transport pathways, environmental dosimetry, and computer model development and use. This review gives a general picture of the Los Alamos solid waste disposal and liquid effluent sites and is intended for technical readers with waste management and environmental science backgrounds but without a detailed familiarization with Los Alamos. The review begins with a wide perspective on environmental studies at Los Alamos. Hydrology, geology, and meteorology are described for the site and region. The ongoing Laboratory-wide environmental surveillance and waste management environmental studies are presented. The next section describes the waste disposal sites and summarizes the current source terms for these sites. Hazardous chemical wastes and liquid effluents are also addressed by describing the sites and canyons that are impacted. The review then focuses on the transport pathways addressed mainly in reports by Healy and Formerly Utilized Sites Remedial Action Program. Once the source terms and potential transport pathways are described, the dose assessment methods are addressed. Three major studies, the waste alternatives, Hansen and Rogers, and the Pantex Environmental Impact Statement, contributed to the current Los Alamos dose assessment methodology. Finally, the current Los Alamos groundwater, surface water, and environmental assessment models for these mesa top and canyon sites are described.

  5. Psychosomatic factors in pruritus.

    PubMed

    Tey, Hong Liang; Wallengren, Joanna; Yosipovitch, Gil

    2013-01-01

    Pruritus and psyche are intricately and reciprocally related, with psychophysiological evidence and psychopathological explanations helping us to understand their complex association. Their interaction may be conceptualized and classified into 3 groups: pruritic diseases with psychiatric sequelae, pruritic diseases aggravated by psychosocial factors, and psychiatric disorders causing pruritus. Management of chronic pruritus is directed at treating the underlying causes and adopting a multidisciplinary approach to address the dermatologic, somatosensory, cognitive, and emotional aspects. Pharmcotherapeutic agents that are useful for chronic pruritus with comorbid depression and/or anxiety comprise selective serotonin reuptake inhibitors, mirtazapine, tricyclic antidepressants (amitriptyline and doxepin), and anticonvulsants (gabapentin, pregabalin); the role of neurokinin receptor-1 antagonists awaits verification. Antipsychotics are required for treating itch and formication associated with schizophrenia and delusion of parasitosis (including Morgellons disease). PMID:23245971

  6. Los Alamos Scientific Laboratory energy-related history, research, managerial reorganization proposals, actions taken, and results. History report, 1945--1979

    SciTech Connect

    Hammel, E.F.

    1997-03-01

    This report documents the development of major energy-related programs at the Los Alamos Scientific Laboratory between 1945 and 1979. Although the Laboratory`s primary mission during that era was the design and development of nuclear weapons and most of the Laboratory`s funding came from a single source, a number of factors were at work that led to the development of these other programs. Some of those factors were affected by the Laboratory`s internal management structure and organization; others were the result of increasing environmental awareness within the general population and the political consequences of that awareness; still others were related to the increasing demand for energy and the increasing turmoil in the energy-rich Middle East. This report also describes the various activities in Los Alamos, in Washington, and in other areas of the world that contributed to the development of major energy-related programs at Los Alamos. The author has a unique historical perspective because of his involvement as a scientist and manager at the Los Alamos Scientific Laboratory during the time period described within the report. In addition, in numerous footnotes and references, he cites a large body of documents that include the opinions and perspectives of many others who were involved at one time or another in these programs. Finally the report includes a detailed chronology of geopolitical events that led to the development of energy-related programs at Los Alamos.

  7. Wave friction factor rediscovered

    NASA Astrophysics Data System (ADS)

    Le Roux, J. P.

    2012-02-01

    The wave friction factor is commonly expressed as a function of the horizontal water particle semi-excursion ( A wb) at the top of the boundary layer. A wb, in turn, is normally derived from linear wave theory by {{U_{{wb}}/T_{{w}}}}{{2? }} , where U wb is the maximum water particle velocity measured at the top of the boundary layer and T w is the wave period. However, it is shown here that A wb determined in this way deviates drastically from its real value under both linear and non-linear waves. Three equations for smooth, transitional and rough boundary conditions, respectively, are proposed to solve this problem, all three being a function of U wb, T w, and ?, the thickness of the boundary layer. Because these variables can be determined theoretically for any bottom slope and water depth using the deepwater wave conditions, there is no need to physically measure them. Although differing substantially from many modern attempts to define the wave friction factor, the results coincide with equations proposed in the 1960s for either smooth or rough boundary conditions. The findings also confirm that the long-held notion of circular water particle motion down to the bottom in deepwater conditions is erroneous, the motion in fact being circular at the surface and elliptical at depth in both deep and shallow water conditions, with only horizontal motion at the top of the boundary layer. The new equations are incorporated in an updated version (WAVECALC II) of the Excel program published earlier in this journal by Le Roux et al. Geo-Mar Lett 30(5): 549-560, (2010).

  8. Helicopter Human Factors

    NASA Technical Reports Server (NTRS)

    Hart, Sandra G.; Sridhar, Banavar (Technical Monitor)

    1995-01-01

    Even under optimal conditions, helicopter flight is a most demanding form of human-machine interaction, imposing continuous manual, visual, communications, and mental demands on pilots. It is made even more challenging by small margins for error created by the close proximity of terrain in NOE flight and missions flown at night and in low visibility. Although technology advances have satisfied some current and proposed requirements, hardware solutions alone are not sufficient to ensure acceptable system performance and pilot workload. However, human factors data needed to improve the design and use of helicopters lag behind advances in sensor, display, and control technology. Thus, it is difficult for designers to consider human capabilities and limitations when making design decisions. This results in costly accidents, design mistakes, unrealistic mission requirements, excessive training costs, and challenge human adaptability. NASA, in collaboration with DOD, industry, and academia, has initiated a program of research to develop scientific data bases and design principles to improve the pilot/vehicle interface, optimize training time and cost, and maintain pilot workload and system performance at an acceptable level. Work performed at Ames, and by other research laboratories, will be reviewed to summarize the most critical helicopter human factors problems and the results of research that has been performed to: (1) Quantify/model pilots use of visual cues for vehicle control; (2) Improve pilots' performance with helmet displays of thermal imagery and night vision goggles for situation awareness and vehicle control; (3) Model the processes by which pilots encode maps and compare them to the visual scene to develop perceptually and cognitively compatible electronic map formats; (4) Evaluate the use of spatially localized auditory displays for geographical orientation, target localization, radio frequency separation; (5) Develop and flight test control/display concepts; (6) Quantify, model, predict, and improve pilots, workload-management strategies; and (7) Design computer-game trainers to reduce training time and cost.

  9. Sparse Bayesian infinite factor models

    Microsoft Academic Search

    A. Bhattacharya; D. B. Dunson

    2011-01-01

    We focus on sparse modelling of high-dimensional covariance matrices using Bayesian latent factor models. We propose a multiplicative gamma process shrinkage prior on the factor loadings which allows introduction of infinitely many factors, with the loadings increasingly shrunk towards zero as the column index increases. We use our prior on a parameter-expanded loading matrix to avoid the order dependence typical

  10. FACTOR FINDER CD-ROM

    EPA Science Inventory

    The Factor Finder CD-ROM is a user-friendly, searchable tool used to locate exposure factors and sociodemographic data for user-defined populations. Factor Finder improves the exposure assessors and risk assessors (etc.) ability to efficiently locate exposure-related informatio...

  11. Automatic test factoring for java

    Microsoft Academic Search

    David Saff; Shay Artzi; Jeff H. Perkins; Michael D. Ernst

    2005-01-01

    Test factoring creates fast, focused unit tests from slow system-wide tests; each new unit test exercises only a subset of the functionality exercised by the system test. Augment- ing a test suite with factored unit tests should catch errors earlier in a test run. One way to factor a test is to introduce mock objects. If a test exercises a

  12. Sample size in factor analysis

    Microsoft Academic Search

    Robert C. MacCallum; Keith F. Widaman; Shaobo Zhang; Sehee Hong

    1999-01-01

    In the factor analysis literature, much attention has be;;n given to the issue of sample size. It is widely understood that the use of larger samples in applica- tions of factor analysis tends to provide results such that sample factor loadings are more precise estimates of population loadings and are also more stable, or les s variable, across repeated sampling.

  13. Topics in Factor Analysis II.

    ERIC Educational Resources Information Center

    Tucker, Ledyard R.; And Others

    Three topics in factor analysis are covered: a) a reliability coefficient for assessing the quality of a maximum likelihood factor analysis, b) an application of three-mode factor analysis to serial learning data, showing variations in learning curves over stages of learning and individuals, and c) the use of personal probability functions to…

  14. Phonological Awareness: Factors of Influence

    ERIC Educational Resources Information Center

    Frohlich, Linda Paulina; Petermann, Franz; Metz, Dorothee

    2013-01-01

    Early child development is influenced by various genetic and environmental factors. This study aims to identify factors that affect the phonological awareness of preschool and first grade children. Based on a sample of 330 German-speaking children (mean age = 6.2 years) the following domains were evaluated: Parent factors, birth and pregnancy,…

  15. Vector meson electromagnetic form factors

    E-print Network

    B. G. Lasscock; J. Hedditch; D. B. Leinweber; A. G. Williams

    2006-11-23

    The charge, magnetic and quadrupole form factors of vector mesons and the charge form factor of pseudo-scalar mesons are calculated in quenched lattice QCD. The charge radii and magnetic moments are derived. The quark sector contributions to the form factors are calculated separately and we highlight the environmental sensitivity of the light-quark contribution to charge radii.

  16. Factor Analysis via Components Analysis

    ERIC Educational Resources Information Center

    Bentler, Peter M.; de Leeuw, Jan

    2011-01-01

    When the factor analysis model holds, component loadings are linear combinations of factor loadings, and vice versa. This interrelation permits us to define new optimization criteria and estimation methods for exploratory factor analysis. Although this article is primarily conceptual in nature, an illustrative example and a small simulation show…

  17. Factor Analysis of Intern Effectiveness

    ERIC Educational Resources Information Center

    Womack, Sid T.; Hannah, Shellie Louise; Bell, Columbus David

    2012-01-01

    Four factors in teaching intern effectiveness, as measured by a Praxis III-similar instrument, were found among observational data of teaching interns during the 2010 spring semester. Those factors were lesson planning, teacher/student reflection, fairness & safe environment, and professionalism/efficacy. This factor analysis was as much of a…

  18. 10. GRANT LAKE AND MONO LAKE LOOKING EAST/NORTHEAST Los ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    10. GRANT LAKE AND MONO LAKE LOOKING EAST/NORTHEAST - Los Angeles Aqueduct, From Lee Vining Intake (Mammoth Lakes) to Van Norman Reservoir Complex (San Fernando Valley), Los Angeles, Los Angeles County, CA

  19. 11. GRANT LAKE AND MONO LAKE LOOKING NORTH/NORTHEAST Los ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    11. GRANT LAKE AND MONO LAKE LOOKING NORTH/NORTHEAST - Los Angeles Aqueduct, From Lee Vining Intake (Mammoth Lakes) to Van Norman Reservoir Complex (San Fernando Valley), Los Angeles, Los Angeles County, CA

  20. 91. FAIRMONT RESERVOIR, LOOKING WEST/NORTHWEST Los Angeles Aqueduct, From ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    91. FAIRMONT RESERVOIR, LOOKING WEST/NORTHWEST - Los Angeles Aqueduct, From Lee Vining Intake (Mammoth Lakes) to Van Norman Reservoir Complex (San Fernando Valley), Los Angeles, Los Angeles County, CA

  1. 75 FR 71455 - The Jewelry Stream, Los Angeles, CA; Notice of Affirmation Determination Regarding Application...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-23

    ...Administration [TA-W-73,145] The Jewelry Stream, Los Angeles, CA; Notice of Affirmation...Manufacturing, Inc. and The Jewelry Stream, Los Angeles, California. The termination...Manufacturing, Inc. and The Jewelry Stream, Los Angeles, California--is...

  2. 76 FR 70051 - Establishment of Class D and Amendment of Class E Airspace; Los Angeles, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-10

    ...Amendment of Class E Airspace; Los Angeles, CA AGENCY: Federal Aviation Administration...Angeles International Airport, Los Angeles, CA. Controlled airspace is necessary to contain...amend controlled airspace at Los Angeles, CA (76 FR 35369). Interested parties...

  3. 75 FR 13301 - Los Vaqueros Reservoir Expansion, Contra Costa and Alameda Counties, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-19

    ...Bureau of Reclamation Los Vaqueros Reservoir Expansion, Contra Costa and Alameda Counties, CA AGENCY...have prepared the Los Vaqueros Reservoir Expansion Final EIS/EIR. Los Vaqueros Expansion is a proposed action in the August 2000...

  4. QU ES UNA BEBIDA ESTNDAR? En los Estados Unidos, una bebida estndar es cualquier

    E-print Network

    Bandettini, Peter A.

    ? TRASTORNOS POR EL USO DE ALCOHOL EN LOS BEBEDORES QUE TIENEN ESTE PATRÓN? Basado en los siguientes límites solamente los limites semanales. La prevalencia combinada de uso y trastornos de alcohol en este grupo es de

  5. PROPUESTA DE CREACIN DE UN PARQUE NATURAL ENTRE LA CORNISA DE LOS MONTES Y LA MARGEN

    E-print Network

    Espigares, Tíscar

    , a primeras viviendas. Los municipios, especialmente los más pequeños, tienen que enfrentarse a problemas que, los cerros y el río Henares han gozado de un consenso social generalizado que ha salvaguardado la

  6. Transfer factors: identification of conserved sequences in transfer factor molecules.

    PubMed Central

    Kirkpatrick, C. H.

    2000-01-01

    BACKGROUND: Transfer factors are small proteins that "transfer" the ability to express cell-mediated immunity from immune donors to non-immune recipients. We developed a process for purifying specific transfer factors to apparent homogeneity. This allowed us to separate individual transfer factors from mixtures containing several transfer factors and to demonstrate the antigen-specificity of transfer factors. Transfer factors have been shown to be an effective means for correction of deficient cellular immunity in patients with opportunistic infections, such as candidiasis or recurrent Herpes simplex and to provide prophylactic immunity against varicella-zoster in patients with acute leukemia. MATERIALS AND METHODS: Transfer factors of bovine and murine origin were purified by affinity chromatography and high performance liquid chromatography. Cyanogen bromide digests were sequenced. The properties of an apparently conserved sequence on expression of delayed-type hypersensitivity by transfer factor recipients were assessed. RESULTS: A novel amino acid sequence, LLYAQDL/VEDN, was identified in each of seven transfer factor preparations. These peptides would not transfer expression of delayed-type hypersensitivity to recipients, which indicates that they are not sufficient for expression of the specificity or immunological properties of native transfer factors. However, administration of the peptides to recipients of native transfer factors blocked expression of delayed-type hypersensitivity by the recipients. The peptides were not immunosuppressive. CONCLUSIONS: These findings suggest that the peptides may represent the portion of transfer factors that binds to the "target cells" for transfer factors. Identification of these cells will be helpful in defining the mechanisms of action of transfer factors. PMID:10949913

  7. ¿Quién paga los objetivos públicos en el urbanismo en Inglaterra, los Países Bajos y la comunidad autónoma valenciana?

    Microsoft Academic Search

    Demetrio Muñoz Gielen

    1970-01-01

    Cuando es el privado el que ejecuta el Planeamiento, surge la cuestión de los límites de las\\u000aprestaciones que la Administración Pública puede exigir: ¿qué infraestructuras, viviendas\\u000asociales y equipamientos públicos han de asumir los agentes de mercado (propietarios del\\u000asuelo y promotoras inmobiliarias)? Más allá de la mera financiación de esta infraestructura, se\\u000aplantea además la cuestión de si

  8. TABLN DE ANUNCIOS La recogida de DIPLOMAS de los cursos impartidos por este Departamento se harn slo los lunes y los

    E-print Network

    Escolano, Francisco

    TABLÓN DE ANUNCIOS La recogida de DIPLOMAS de los cursos impartidos por este Departamento se harán curso "WEB 2.0 APLICACIONES PARA LA INFORMACIÓN, LA COMUNICACIÓN Y EL APRENDIZAJE" (Publicada 12/05/2014) Del 8 al 21 de julio de 2014 (NO PRESENCIAL) Abierta la inscripción en el curso "BLOGS. UN RECURSO

  9. [Hematologic response predictor factors in adults with myelodysplastic syndromes (SMD) treated with cyclosporin A (CSA)].

    PubMed

    Zamora-Pérez, Elia; López-Karpovitch, Xavier

    2015-01-01

    Antecedentes: Los SMD son enfermedades clonales de las células hematopoyéticas. La escala de riesgo más utilizada es el International Prognostic Scoring System (IPSS). La CSA se ha empleado para tratar las citopenias en los SMD. Objetivo: Evaluar la respuesta hematológica e identificar factores predictivos de respuesta en adultos con SMD tratados con CSA. Material y métodos: Se incluyeron pacientes con SMD diagnosticados de acuerdo con los criterios de la Organización Mundial de la Salud (OMS). Se usaron las escalas de riesgo IPSS, IPSS revisado (IPSS-R), WHO Prognostic Scoring System (WPSS) y WPSS revisado (WPSS-R). La dosis inicial de CSA fue de 5 mg/kg/día. Resultados: Cumplieron con los criterios de inclusión 32 pacientes. La mediana de edad fue de 56.5 años y la de seguimiento, de 3.1 años. Se obtuvo una tasa de respuesta hematológica del 56.2% y una independencia de trasfusión de concentrados eritrocitarios (CE) del 42.9%. La edad, la cifra de hemoglobina (Hb) y la escala WPSS en el momento del diagnóstico fueron factores independientes predictivos de respuesta para CSA. La supervivencia entre los pacientes con respuesta a CSA fue mayor que la de aquellos sin respuesta (p = 0.06). Conclusiones: La CSA indujo respuesta hematológica > 50% de pacientes con SMD, < 57 años de edad, Hb < 8 g/dl y WPSS bajo en el momento del diagnóstico. PMID:26089271

  10. Las regiones Objetivo 1 españolas en la sociedad de la información: el comercio electrónico como elemento de desarrollo

    Microsoft Academic Search

    Enrique Bernal Jurado; Juan Carlos Rodríguez Cohard

    2003-01-01

    RESUMEN Las tecnologías de la información y comunicación (TIC) constituyen una de las principales fuerzas de la globalización. El comercio electrónico aprovecha Internet para mejorar la competitividad de las empresas y territorios. En un escenario como el actual, este canal, por un lado, abre posibilidades de desarrollo para las regiones Objetivo 1, pero, por otro, refuerza los factores de crecimiento

  11. Human Factors in Training

    NASA Technical Reports Server (NTRS)

    Barshi, Immanuel; Byme, Vicky; Arsintescu, Lucia

    2008-01-01

    Future space missions will be significantly longer than current Shuttle missions and new systems will be more complex than current systems. Increasing communication delays between crews and Earth-based support means that astronauts need to be prepared to handle the unexpected on their own. As crews become more autonomous, their potential span of control and required expertise must grow to match their autonomy. It is not possible to train for every eventuality ahead of time on the ground, or to maintain trained skills across long intervals of disuse. To adequately prepare NASA personnel for these challenges, new training approaches, methodologies, and tools are required. This research project aims at developing these training capabilities. Training efforts in FY07 strongly focused on crew medical training, but also began exploring how Space Flight Resource Management training for Mission Operations Directorate (MOD) Flight Controllers could be integrated with systems training for optimal Mission Control Center operations. Beginning in January 2008, the training research effort will include team training prototypes and tools. The Training Task addresses Program risks that lie at the intersection of the following three risks identified by the Project: 1) Risk associated with poor task design; 2) Risk of error due to inadequate information; 3) Risk associated with reduced safety and efficiency due to poor human factors design.

  12. Human Factors in Training

    NASA Technical Reports Server (NTRS)

    Barshi, Immanuel; Byrne, Vicky; Arsintescu, Lucia; Connell, Erin; Sandor, Aniko

    2009-01-01

    Future space missions will be significantly longer than current shuttle missions and new systems will be more complex than current systems. Increasing communication delays between crews and Earth-based support means that astronauts need to be prepared to handle the unexpected on their own. As crews become more autonomous, their potential span of control and required expertise must grow to match their autonomy. It is not possible to train for every eventuality ahead of time on the ground, or to maintain trained skills across long intervals of disuse. To adequately prepare NASA personnel for these challenges, new training approaches, methodologies, and tools are required. This research project aims at developing these training capabilities. By researching established training principles, examining future needs, and by using current practices in space flight training as test beds, both in Flight Controller and Crew Medical domains, this research project is mitigating program risks and generating templates and requirements to meet future training needs. Training efforts in Fiscal Year 08 (FY08) strongly focused on crew medical training, but also began exploring how Space Flight Resource Management training for Mission Operations Directorate (MOD) Flight Controllers could be integrated with systems training for optimal Mission Control Center (MCC) operations. The Training Task addresses Program risks that lie at the intersection of the following three risks identified by the Project: (1) Risk associated with poor task design (2) Risk of error due to inadequate information (3) Risk associated with reduced safety and efficiency due to poor human factors design

  13. Human Factors in Training

    NASA Technical Reports Server (NTRS)

    Barshi, Immanuel; Byrne, Vicky; Arsintescu, Lucia; Connell, Erin

    2010-01-01

    Future space missions will be significantly longer than current shuttle missions and new systems will be more complex than current systems. Increasing communication delays between crews and Earth-based support means that astronauts need to be prepared to handle the unexpected on their own. As crews become more autonomous, their potential span of control and required expertise must grow to match their autonomy. It is not possible to train for every eventuality ahead of time on the ground, or to maintain trained skills across long intervals of disuse. To adequately prepare NASA personnel for these challenges, new training approaches, methodologies, and tools are required. This research project aims at developing these training capabilities. By researching established training principles, examining future needs, and by using current practices in space flight training as test beds, both in Flight Controller and Crew Medical domains, this research project is mitigating program risks and generating templates and requirements to meet future training needs. Training efforts in Fiscal Year 09 (FY09) strongly focused on crew medical training, but also began exploring how Space Flight Resource Management training for Mission Operations Directorate (MOD) Flight Controllers could be integrated with systems training for optimal Mission Control Center (MCC) operations. The Training Task addresses Program risks that lie at the intersection of the following three risks identified by the Project: 1) Risk associated with poor task design; 2) Risk of error due to inadequate information; and 3) Risk associated with reduced safety and efficiency due to poor human factors design.

  14. [Hereditary factors in strabismus].

    PubMed

    Mvogo, C E; Ellong, A; Bella-Hiag, A L; Luma-Namme, H

    2001-01-01

    This retrospective study took place in the Ophthalmology Department of Douala General Hospital. The aim was to determine the importance of hereditary factors in a group of strabismic Cameroonians. In a series of 275 patients with strabismus, we found 79 familial cases (28.72%). Among them, 22.78% had more than one relative with squint and 75% had the same type of strabismus as their relative. There was no significant difference in the percentage of familial cases with regard to the type of strabismus, the sex, the mode of fixation and the impairment of ductions. As far as ametropias are concerned, only myopia showed a hereditary tendency in our series. The authors agree with the literature in that there is a significant hereditary component in the cause of strabismus, but its genetic sites are yet to be identified. There is strong hope in this direction with the decoding of the human genom and the advances in molecular biology. However, the study of familial cases is important since it allows high risk groups to be defined and screened. It thus makes it possible to successfully fight amblyopia through early detection and treatment. PMID:11861199

  15. Environmental Survey preliminary report, Los Alamos National Laboratory, Los Alamos, New Mexico

    SciTech Connect

    Not Available

    1988-01-01

    This report presents the preliminary findings from the first phase of the Environmental Survey of the United States Department of Energy's (DOE) Los Alamos National Laboratory (LANL), conducted March 29, 1987 through April 17, 1987. The Survey is being conducted by an interdisciplinary team of environmental specialists, led and managed by the Office of Environment, Safety and Health's Office of Environmental Audit. Individual team components are outside experts being supplied by a private contractor. The objective of the Survey is to identify environmental problems and areas of environmental risk associated with the LANL. The Survey covers all environmental media and all areas of environmental regulation. It is being performed in accordance with the DOE Environmental Survey Manual. The on-site phase of the Survey involves the review of existing site environmental data, observations of the operations carried on at the LANL, and interviews with site personnel. The Survey team developed Sampling and Analysis Plan to assist in further assessing certain of the environmental problems identified during its on-site activities. The Sampling and Analysis Plan will be executed by the Idaho National Engineering Laboratory. When completed, the results will be incorporated into the LANL Environmental Survey Interim Report. The Interim Report will reflect the final determinations of the Survey for the LANL. 65 refs., 68 figs., 73 tabs.

  16. Identificación de los miembros del cúmulo NGC 2516

    NASA Astrophysics Data System (ADS)

    de Elía, G. C.; Orellana, R. B.

    El cúmulo abierto NGC 2516 (? = 7h 58m y ? = -60o 45') tiene una edad de, aproximadamente, 150 Myr. El análisis de este sistema es particularmente importante en el Hemisferio Sur debido a su abundancia de estrellas peculiares y muy estudiado aplicando técnicas fotométricas, pero muy poco analizado desde el punto de vista astrométrico. A partir de una placa obtenida en el Observatorio Astronómico de La Plata y observaciones más actuales, nos hemos abocado al estudio de los movimientos propios de este cúmulo con el fin de determinar la pertenencia al mismo de las estrellas del campo de dicho cúmulo. Luego de llevar a cabo la determinación de los movimientos propios de todas las estrellas a partir de las posiciones obtenidas de la placa existente en el Observatorio de La Plata de 1914 y leídas con la MAMA en París, las observaciones realizadas con el círculo meridiano de San Fernando que se encuentra en el Observatorio Félix Aguilar de San Juan y las posiciones existentes en los catálogos AC 2000, Tycho, USNO y UCAC, programamos el método de Vasilevsky y Sanders para determinar la pertenencia de las estrellas de la región al cúmulo en cuestión. En un paso posterior, se realizó una modificación al método anterior para la determinación de los miembros. En esta modificación se consideró la densidad de las estrellas del cúmulo y la densidad de estrellas de campo. Esto permitió evaluar la pertenencia, no sólo a partir del movimiento propio de las estrellas, sino también a partir de la posición de las mismas con respecto al centro del cúmulo. También se consideró la dependencia de los parámetros con la magnitud. Los resultados así obtenidos fueron comparados con otras investigaciones de movimientos propios de la región del cúmulo. El movimiento propio absoluto del cúmulo fue comparado con el obtenido a partir de los catálogos estelares. Se encontró que los resultados coincidían para estrellas brillantes (magnitud más brillante que 12.0 aproximadamente) y que no coincidían para estrellas más débiles. La tarea que llevamos a cabo en estos momentos está referida a encontrar la causa de tales discrepancias con el fin de obtener los mejores resultados.

  17. Statistical distribution of factors and factor images in factor analysis of medical image sequences

    NASA Astrophysics Data System (ADS)

    Buvat, I.; Benali, H.; Di Paola, R.

    1998-06-01

    From a time or energy image sequence, factor analysis of medical image sequences (FAMIS) estimates factors, representing kinetics or spectra in a given physiological compartment, and associated factor images, showing the compartments corresponding to each curve. In this paper, we show that the statistical properties of factor images and associated factors can be determined using a well known result from elementary probability theory. Numerical experiments are conducted to demonstrate that the variance observed in factor images can be predicted when the statistical properties of the original data are known. It is shown how these theoretical results can be used to relax the non-negativity constraints during FAMIS oblique analysis and to improve the quantitative interpretation of the factor images by associating a confidence interval with each pixel value.

  18. Measurements and predictors of on-road ultrafine particle concentrations and associated pollutants in Los Angeles

    NASA Astrophysics Data System (ADS)

    Fruin, S.; Westerdahl, D.; Sax, T.; Sioutas, C.; Fine, P. M.

    Motor vehicles are the dominant source of oxides of nitrogen (NO x), particulate matter (PM), and certain air toxics (e.g., benzene, 1,3-butadiene) in urban areas. On roadways, motor vehicle-related pollutant concentrations are typically many times higher than ambient concentrations. Due to high air exchange rates typical of moving vehicles, this makes time spent in vehicles on roadways a major source of exposure. This paper presents on-road measurements for Los Angeles freeways and arterial roads taken from a zero-emission electric vehicle outfitted with real-time instruments. The objective was to characterize air pollutant concentrations on roadways and identify the factors associated with the highest concentrations. Our analysis demonstrated that on freeways, concentrations of ultrafine particles (UFPs), black carbon, nitric oxide, and PM-bound polycyclic aromatic hydrocarbons (PM-PAH) are generated primarily by diesel-powered vehicles, despite the relatively low fraction (˜6%) of diesel-powered vehicles on Los Angeles freeways. However, UFP concentrations on arterial roads appeared to be driven primarily by proximity to gasoline-powered vehicles undergoing hard accelerations. Concentrations were roughly one-third of those on freeways. By using a multiple regression model for the freeway measurements, we were able to explain 60-70% of the variability in concentrations of UFP, black carbon, nitric oxide, and PM-PAH using measures of diesel truck density and hour of day (as an indicator of wind speed). Freeway concentrations of these pollutants were also well correlated with readily available annual average daily truck counts, potentially allowing improved population exposure estimates for epidemiology studies. Based on these roadway measurements and average driving time, it appears that 33-45% of total UFP exposure for Los Angeles residents occurs due to time spent traveling in vehicles.

  19. Factors controlling testis descent.

    PubMed

    Hughes, Ieuan A; Acerini, Carlo L

    2008-12-01

    Descent of the testis from an intra-abdominal site in foetal life to an extracorporeal location after birth is a mandatory developmental process to ensure that the mature testis promotes normal spermatogenesis. The two phases of transabdominal and inguinoscrotal descent occur approximately during the first and last thirds of gestation respectively. Key anatomical events to release the testis from its urogenital ridge location and to guide the free gonad into the scrotum are the degeneration of the cranio-suspensory ligament and a thickening of the gubernaculum. Androgens play a role in both these processes, particularly with respect to enabling the testis to traverse the inguinal canal in the final phase of descent. Experiments in animals suggest that androgens mediate this effect via the release of calcitonin gene-related peptide by the genitofemoral nerve, but direct evidence for such a mechanism is lacking in humans. The transabdominal phase of descent is under the control of insulin-like 3 (INSL3), a product of the Leydig cells. Definitive evidence of its role in rodent testis descent is illustrated by the phenotype of bilateral cryptorchidism in Insl3-/- null mice. Circulating levels of INSL3 are higher in boys at puberty, are undetectable in girls and are lower in boys with undescended testes. A minority also have a mutation either in the INSL3 gene or affecting its receptor gene, relaxin/insulin-like family peptide receptor 2 (LGRF8). Other factors that may play a role in testis descent include the anti-Mullerian hormone and members of the HOX gene family. Evidence that the prevalence of undescended testis may be increasing provides a phenotypic readout for the effects of postulated chemicals in the environment interfering in some way with the action of factors that control testis descent. Epidemiological studies point to profound geographical variations in prevalence in countries such as Denmark and Finland. Associations have been found with levels of chemicals labelled as endocrine disruptors being higher in breast milk samples from mothers with cryptorchid boys when compared with controls. The adverse effects of these compounds (e.g. bisphenol A) can be replicated in the offspring of dams exposed during pregnancy. A sensitive marker of an anti-androgen effect of a compound is a reduction in the anogenital distance, an anthropometric measurement that is significantly greater in males compared with females. The observation of an association between the anogenital distance in infant boys and the level of pesticides in the urine of their mothers in late gestation indicates that this has the potential to be a useful surrogate marker of the effects of environmental chemicals on testis descent in human population studies. The rightful place for the testis at birth is in the scrotum in order to provide the temperature differential essential for normal spermatogenesis. Appropriate screening programmes and early surgical intervention are the prerequisites to ensure optimal fertility in adulthood and a considerably lessened risk of testis cancer. PMID:18647820

  20. Fibroblast growth factor 23.

    PubMed

    Smith, Edward R; McMahon, Lawrence P; Holt, Stephen G

    2014-03-01

    There is growing interest in the role of fibroblast growth factor 23 (FGF23) in various diseases of disordered mineral metabolism. In chronic kidney disease (CKD), where biochemical evidence of mineral disturbances is especially common, FGF23 measurement has been advocated as an early and sensitive marker for CKD-related bone disease. In this setting, FGF23 analysis may also improve the discrimination of risk of adverse renal and cardiovascular outcomes and aid targeting of those patients that are likely to benefit from interventions. Nonetheless, while the physiological relevance of FGF23 in the control of mineral metabolism is now firmly established, relatively little attention has been paid to important preanalytical and analytical aspects of FGF23 measurement that may impact on its clinical utility. Here we review these issues and discuss the suitability of FGF23 testing strategies for routine clinical practice. The current 'state-of-the-art' enzyme-linked immunosorbent assay methods for FGF23 measurement show poor agreement due to differences in FGF23 fragment detection, antibody specificity and calibration. Such analytical variability does not permit direct comparison of FGF23 measurements made with different assays and is likely to at least in part account for some of the inconsistencies noted between observational studies. From a clinical perspective, the lack of concordance has implications for the development of standardized reference intervals and clinical decision limits. Finally, the inherent assay-dependent biological variability of plasma FGF23 concentration can further complicate the interpretation of results and the design of FGF23-based testing protocols. Currently, it would be premature to consider incorporating FGF23 measurements into standard testing repertoires. PMID:24269946

  1. Growth factors in ischemic stroke

    PubMed Central

    Lanfranconi, S; Locatelli, F; Corti, S; Candelise, L; Comi, G P; Baron, P L; Strazzer, S; Bresolin, N; Bersano, A

    2011-01-01

    Abstract Data from pre-clinical and clinical studies provide evidence that colony-stimulating factors (CSFs) and other growth factors (GFs) can improve stroke outcome by reducing stroke damage through their anti-apoptotic and anti-inflammatory effects, and by promoting angiogenesis and neurogenesis. This review provides a critical and up-to-date literature review on CSF use in stroke. We searched for experimental and clinical studies on haemopoietic GFs such as granulocyte CSF, erythropoietin, granulocyte-macrophage colony-stimulating factor, stem cell factor (SCF), vascular endothelial GF, stromal cell-derived factor-1? and SCF in ischemic stroke. We also considered studies on insulin-like growth factor-1 and neurotrophins. Despite promising results from animal models, the lack of data in human beings hampers efficacy assessments of GFs on stroke outcome. We provide a comprehensive and critical view of the present knowledge about GFs and stroke, and an overview of ongoing and future prospects. PMID:20015202

  2. Growth factors in synaptic function

    PubMed Central

    Poon, Vivian Y.; Choi, Sojoong; Park, Mikyoung

    2013-01-01

    Synapses are increasingly recognized as key structures that malfunction in disorders like schizophrenia, mental retardation, and neurodegenerative diseases. The importance and complexity of the synapse has fuelled research into the molecular mechanisms underlying synaptogenesis, synaptic transmission, and plasticity. In this regard, neurotrophic factors such as netrin, Wnt, transforming growth factor-? (TGF-?), tumor necrosis factor-? (TNF-?), and others have gained prominence for their ability to regulate synaptic function. Several of these factors were first implicated in neuroprotection, neuronal growth, and axon guidance. However, their roles in synaptic development and function have become increasingly clear, and the downstream signaling pathways employed by these factors have begun to be elucidated. In this review, we will address the role of these factors and their downstream effectors in synaptic function in vivo and in cultured neurons. PMID:24065916

  3. A progress report on UNICOS misuse detection at Los Alamos

    SciTech Connect

    Thompson, J.L.; Jackson, K.A.; Stallings, C.A.; Simmonds, D.D.; Siciliano, C.L.B.; Pedicini, G.A. [Los Alamos National Lab., NM (United States). Computing, Information and Communications Div.

    1995-10-01

    An effective method for detecting computer misuse is the automatic monitoring and analysis of on-line user activity. During the past year, Los Alamos enhanced its Network Anomaly Detection and Intrusion Reporter (NADIR) to include analysis of user activity on Los Alamos` UNICOS Crays. In near real-time, NADIR compares user activity to historical profiles and tests activity against expert rules. The expert rules express Los Alamos` security policy and define improper or suspicious behavior. NADIR reports suspicious behavior to security auditors and provides tools to aid in follow-up investigations. This paper describes the implementation to date of the UNICOS component of NADIR, along with the operational experiences and future plans for the system.

  4. Calculational evaluation of plasma flow switches for the Los Alamos Foil Implosion Project

    SciTech Connect

    Greene, A.E.; Bowers, R.L.; Oliphant, T.A.; Peterson, D.L.; Weiss, D.L.

    1989-01-01

    The next system design under consideration for the Los Alamos Foil Implosion Project (Trailmaster) is projected to deliver in excess of 15 MA of electrical current produced by high-explosive driven flux compression generators to a foil load. A plasma flow switch is being investigated as the final pulse shaping step in this system. The performance of these switches is being evaluated using a wide variety of computational tools including zero-, one- and two-dimensional MHD codes and a 3-D view-factor radiation transport code. We are concerned with the effects of radiation from the switch plasma prior to switching current to the load, and the interaction of the switch plasma on existing perturbations and as a source of perturbation on the imploding load. 4 refs. 6 figs.

  5. Active Damping of the E-P Instability at the Los Alamos Proton Storage Ring

    SciTech Connect

    Macek, R.J.; /Los Alamos; Assadi, S.; /Oak Ridge; Byrd, J.M.; /LBL, Berkeley; Deibele, C.E.; Henderson, S.D.; /Oak Ridge; Lee, S.Y.; /Indiana U.; McCrady, R.C.; /Los Alamos; Pivi, M.F.T.; /SLAC; Plum, M.A.; /Oak Ridge; Walbridge, S.B.; /Indiana U.; Zaugg, T.J.; /Los Alamos

    2008-03-17

    A prototype of an analog, transverse (vertical) feedback system for active damping of the two-stream (e-p) instability has been developed and successfully tested at the Los Alamos Proton Storage Ring (PSR). This system was able to improve the instability threshold by approximately 30% (as measured by the change in RF buncher voltage at instability threshold). The feedback system configuration, setup procedures, and optimization of performance are described. Results of several experimental tests of system performance are presented including observations of instability threshold improvement and grow-damp experiments, which yield estimates of instability growth and damping rates. A major effort was undertaken to identify and study several factors limiting system performance. Evidence obtained from these tests suggests that performance of the prototype was limited by higher instability growth rates arising from beam leakage into the gap at lower RF buncher voltage and the onset of instability in the horizontal plane, which had no feedback.

  6. Sigma Factors for Cyanobacterial Transcription

    PubMed Central

    Imamura, Sousuke; Asayama, Munehiko

    2009-01-01

    Cyanobacteria are photosynthesizing microorganisms that can be used as a model for analyzing gene expression. The expression of genes involves transcription and translation. Transcription is performed by the RNA polymerase (RNAP) holoenzyme, comprising a core enzyme and a sigma (?) factor which confers promoter selectivity. The unique structure, expression, and function of cyanobacterial ? factors (and RNAP core subunits) are summarized here based on studies, reported previously. The types of promoter recognized by the ? factors are also discussed with regard to transcriptional regulation. PMID:19838335

  7. Overexpression of the AtLOS5 gene increased abscisic acid level and drought tolerance in transgenic cotton.

    PubMed

    Yue, Yuesen; Zhang, Mingcai; Zhang, Jiachang; Tian, Xiaoli; Duan, Liusheng; Li, Zhaohu

    2012-06-01

    Drought is the major environmental stress that limits cotton (Gossypium hirsutum L.) production worldwide. LOS5/ABA3 (LOS5) encodes a molybdenum co-factor and is essential for activating aldehyde oxidase, which is involved in abscisic acid (ABA) biosynthesis. In this study, a LOS5 cDNA of Arabidopsis thaliana was overexpressed in cotton cultivar Zhongmiansuo35 (Z35) by Agrobacterium tumefaciens-mediated transformation. The transformation and overexpression of AtLOS5 were assessed by PCR and RT-PCR analysis. Detached shoots of transgenic cotton showed slower transpirational water loss than those of Z35. When pot-grown 6-week-old seedlings were withheld from watering for 3 d, transgenic cotton accumulated 25% more endogenous ABA and about 20% more proline than Z35 plants. The transgenic plants also showed increased expression of some drought-responding genes such as P5CS and RD22, and enhanced activity of antioxidant enzymes such as superoxide dismutase, peroxidase, and ascorbate peroxidase. Their membrane integrity was considerably improved under water stress, as indicated by reduced malondialdehyde content and electrolyte leakage relative to control plants. When the pot-grown plants were subjected to deficit irrigation for 8 weeks (watering to 50% of field capacity), transgenic plants showed a 13% increase in fresh weight than the wild type under the same drought condition. These results suggest that the AtLOS5 transgenic cotton plants acquired a better drought tolerance through enhanced ABA production and ABA-induced physiological regulations. PMID:22412184

  8. Five Describing Factors of Dyslexia.

    PubMed

    Tamboer, Peter; Vorst, Harrie C M; Oort, Frans J

    2014-11-14

    Two subtypes of dyslexia (phonological, visual) have been under debate in various studies. However, the number of symptoms of dyslexia described in the literature exceeds the number of subtypes, and underlying relations remain unclear. We investigated underlying cognitive features of dyslexia with exploratory and confirmatory factor analyses. A sample of 446 students (63 with dyslexia) completed a large test battery and a large questionnaire. Five factors were found in both the test battery and the questionnaire. These 10 factors loaded on 5 latent factors (spelling, phonology, short-term memory, rhyme/confusion, and whole-word processing/complexity), which explained 60% of total variance. Three analyses supported the validity of these factors. A confirmatory factor analysis fit with a solution of five factors (RMSEA = .03). Those with dyslexia differed from those without dyslexia on all factors. A combination of five factors provided reliable predictions of dyslexia and nondyslexia (accuracy >90%). We also looked for factorial deficits on an individual level to construct subtypes of dyslexia, but found varying profiles. We concluded that a multiple cognitive deficit model of dyslexia is supported, whereas the existence of subtypes remains unclear. We discussed the results in relation to advanced compensation strategies of students, measures of intelligence, and various correlations within groups of those with and without dyslexia. PMID:25398549

  9. Growth factors and antimicrobial factors of bovine colostrum

    Microsoft Academic Search

    R. Pakkanen; J. Aalto

    1997-01-01

    Colostrum is the first natural food produced by female mammals during the first 24–36h directly after giving birth. Chemically, colostrum is a very complex fluid rich in nutrients, antibodies and growth factors. In cows the antibodies provide passive immunity to the new born calf, whereas the growth factors especially stimulate the growth of the gut. The other antimicrobial components of

  10. Reliability and Validity: One Factor and Third Factor Tests

    E-print Network

    White, Douglas R.

    Chapter 7 Reliability and Validity: One Factor and Third Factor Tests D. White and A. Korotayev 26 Sept 2003 Html links are live Reliability and validity are crucial issues in research. Reliability is concerned with lowered quality of data due to random errors in measurement. Validity is concerned

  11. Women's career success: A factor analytic study of contributing factors

    Microsoft Academic Search

    LuAnn Ricketts Gaskill

    1991-01-01

    Considerable research has been conducted on factors which have enabled men to succeed in management, but only recently has attention been directed toward successful women in management. Researchers interested in identifying factors contributing to women's advancement have done so by focusing on the lives of top women in business and industry (Adams, 1979; Fenn, 1978; Hardesty & Jacobs, 1986; Hennig

  12. Heavy quark impact factor in kT-factorization

    E-print Network

    Grigorios Chachamis; Michal Deak; German Rodrigo

    2013-10-24

    We present the calculation of the finite part of the heavy quark impact factor at next-to-leading logarithmic accuracy in a form suitable for phenomenological studies such as the calculation of the cross-section for single bottom quark production at the LHC within the kT-factorization scheme.

  13. Fifty-one years of Los Alamos Spacecraft

    SciTech Connect

    Fenimore, Edward E. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2014-09-04

    From 1963 to 2014, the Los Alamos National Laboratory was involved in at least 233 spacecraft. There are probably only one or two institutions in the world that have been involved in so many spacecraft. Los Alamos space exploration started with the Vela satellites for nuclear test detection, but soon expanded to ionospheric research (mostly barium releases), radioisotope thermoelectric generators, solar physics, solar wind, magnetospheres, astrophysics, national security, planetary physics, earth resources, radio propagation in the ionosphere, and cubesats. Here, we present a list of the spacecraft, their purpose, and their launch dates for use during RocketFest

  14. Contributions of chemistry in early day Los Alamos

    SciTech Connect

    Penneman, R.A.; Meade, R.A.

    1990-01-01

    During 1943--1945, the premier physics laboratory in the world was at Los Alamos, but chemistry contributions were vital. Major chemical impacts on the success of the Los Alamos wartime mission included electrochemistry, which found the true melting point of plutonium metal to be hundreds of degrees lower than anticipated. This discovery had profound simplifying effects regarding crucibles to contain molten plutonium and on its production. Other significant chemical contributions involved constant purification of plutonium for reuse, producing carrier-free gamma sources at unprecedented kilo-curie levels, and high polonium work. 8 refs.

  15. La importancia de 'la palabra' en Rosalba y los Llaveros.

    E-print Network

    Tilles, Solomon H.

    1975-04-01

    Rosalba y los 40 LATIN AMERICAN THEATRE REVIEW Llaveros no funciona en un plano económico o político, ni representa norma sociológica alguna. Se trata más bien de un choque entre dos maneras de ser, entre dos concep ciones de la realidad. [Es... la tensión dramática de la obra no es el resultado de un choque entre dos clases o tradiciones sociales sino de la apli cación de la técnica, o a lo mejor, táctica psicológica de Rosalba. Todos los per sonajes, menos Rosalba y Aurora, bajo la...

  16. Los Alamos DP West Plutonium Facility decontamination project

    SciTech Connect

    Garde, R.; Cox, E.J.; Valentine, A.M.

    1982-01-01

    The DP West Plutonium Facility operated by the Los Alamos National Laboratory, Los Alamos, New Mexico, was decontaminated between April 1978 and April 1981. The facility was constructed in 1944 to 1945 to produce plutonium metal and fabricate parts for nuclear weapons. It was continually used as a plutonium processing and research facility until mid-1978. Decontamination operations included dismantling and removing gloveboxes and conveyor tunnels; removing process systems, utilities, and exhaust ducts; and decontaminating all remaining surfaces. This report describes glovebox and conveyor tunnel separations, decontamination techniques, health and safety considerations, waste management procedures, and costs of the operation.

  17. LAMAP, the Los Alamos National Laboratory mapping code

    SciTech Connect

    McGavran, L.P.; Wheat, B.M.

    1982-01-01

    An interactive computer mapping code, LAMAP, has been developed for the Los Alamos National Laboratory. LAMAP can produce topographic and/or planimetric maps of any area of the Laboratory's 27,800-acre site to any scale. This paper describes briefly the history of the development of the mapping code, the acquisition of the topographic and planimetric data, and the Los Alamos Integrated Computing Network. It also presents a runthrough of LAMAP, highlighting the use of DISSPLA. Finally, a few uses that have been made of LAMAP and some of the additions that have been requested by its users are discussed.

  18. Imaginacion e identidad: los personajes de Juan Tovar 

    E-print Network

    Dennis, Susan Michele

    1983-01-01

    , vergonzante excitacion momentanea. Ocupando la silla frente a la caja registradora miro hacia los muchachos. ?Se habran dado cuen- ta? Corno si hubiera algo de que darse cuenta. Sonrio en un intento de burlarse de si mismo. Clara, no voy a quedarme corno... ocurre otra escena imaginada, igualmente viva en su ferocidad: "Un solo golpe bien dado. Vio el rostro aterrorizado alzarse hacia el por una fraccion de segundo, sintio los huesos ceder bajo el impacto, vio la sangre derramarse (pag. 119). Otra vez...

  19. Los Suelos y la agricultura en el municipio de Candelaria 

    E-print Network

    Banco de Fomento Agrí cola e Industrial de Cuba. Division Agrí cola. Departamento de Diversificací on

    1957-01-01

    ?mero de cuenta de su banco si desea que los fondos para asistencia luego un desastre se depositen directamente en su cuenta. Obtenci?n de asistencia ante un desastre Se le entregar? un n?mero de identificaci?n de inscripci?n de FEMA. Una vez que este... de comunicarse con usted. En caso de que alguien que diga ser oficial de FEMA le solicite este n?mero, no se lo d?. Dado que los representantes oficiales de FEMA ya tienen este n?mero, debe solicitarles la identificaci?n. Se le enviar? una copia...

  20. Los Alamos Using Neutrons to Stop Nuclear Smugglers

    SciTech Connect

    Favalli, Andrea; Swinhoe, Martyn

    2013-06-03

    Los Alamos National Laboratory researchers have successfully demonstrated for the first time that laser-generated neutrons can be enlisted as a useful tool in the War on Terror. The international research team used the short-pulse laser at Los Alamos's TRIDENT facility to generate a neutron beam with novel characteristics that interrogated a closed container to confirm the presence and quantity of nuclear material inside. The successful experiment paves the way for creation of a table-top-sized or truck-mounted neutron generator that could be installed at strategic locations worldwide to thwart smugglers trafficking in nuclear materials.

  1. The development of the atomic bomb, Los Alamos

    SciTech Connect

    Seidel, R.W.

    1993-11-01

    The historical presentation begins with details of the selection of Los Alamos as the site of the Army installation. Wartime efforts of the Army Corps of Engineers, and scientists to include the leader of Los Alamos, Robert Oppenheimer are presented. The layout and construction of the facilities are discussed. The monumental design requirements of the bombs are discussed, including but not limited to the utilization of the second choice implosion method of detonation, and the production of bomb-grade nuclear explosives. The paper ends with a philosophical discussion on the use of nuclear weapons.

  2. Factorized molecular wave functions: Analysis of the nuclear factor.

    PubMed

    Lefebvre, R

    2015-06-01

    The exact factorization of molecular wave functions leads to nuclear factors which should be nodeless functions. We reconsider the case of vibrational perturbations in a diatomic species, a situation usually treated by combining Born-Oppenheimer products. It was shown [R. Lefebvre, J. Chem. Phys. 142, 074106 (2015)] that it is possible to derive, from the solutions of coupled equations, the form of the factorized function. By increasing artificially the interstate coupling in the usual approach, the adiabatic regime can be reached, whereby the wave function can be reduced to a single product. The nuclear factor of this product is determined by the lowest of the two potentials obtained by diagonalization of the potential matrix. By comparison with the nuclear wave function of the factorized scheme, it is shown that by a simple rectification, an agreement is obtained between the modified nodeless function and that of the adiabatic scheme. PMID:26049477

  3. LA IMAGEN DE ARAGÓN EN LOS LIBROS DE TEXTO DE EDUCACIÓN PRIMARIA

    Microsoft Academic Search

    E. Climent López; E. García Pascual; E. Ruiz Budría

    Resumen: En el artículo se realiza un estudio de los libros de texto de educación primaria utilizados en los colegios aragoneses, con el objetivo de desvelar la imagen de Aragón que transmiten a los escolares. El análisis realizado permite concluir que todos los libros de texto siguen el modelo académico clásico, diferenciándose por adoptar, en unos casos, un enfoque puramente

  4. POTENCIA DE LOS CONTRASTES DE RAÍZ UNITARIA EN SERIES AR( 1) CON CAMBIO ESTRUCTURAL

    Microsoft Academic Search

    En este trabajo se investigan, mediante simulación de Monte Carlo, los efec- tos que produce un cambio en la constante de un proceso autorregresivo sobre la potencia empírica de tres grupos de contrastes de raíz unitaria: los contrastes tradicionales (que no contemplan el cambio), los contrastes espe- cíficos que contemplan un cambio en la media y los contrastes de la

  5. Per: Chirapaq celebra 25 aos con un foro sobre "Derechos de los Pueblos Indgenas"

    E-print Network

    Islas, León

    Perú: Chirapaq celebra 25 años con un foro sobre "Derechos de los Pueblos Indígenas celebrará su 25 aniversario con el foro público internacional: "Derechos de los Pueblos Indígenas: Avances y la Nación Cree, ex parlamentario y miembro del Mecanismo de Expertos sobre los Derechos de los

  6. Congreso Internacional 1810-2010: 200 aos de Iberoamrica -2321 LA TUTELA DE LOS DERECHOS

    E-print Network

    Paris-Sud XI, Université de

    Congreso Internacional 1810-2010: 200 años de Iberoamérica - 2321 LA TUTELA DE LOS DERECHOS Los derechos humanos constituyen un todo indivisible que deriva de la dignidad de la persona. Sin sobre la exigibilidad de los derechos de primera y de segunda generación. Mientras los derechos civiles

  7. Violencia y prosocialidad en los contenidos televisivos infantiles visionados por menores

    E-print Network

    Escolano, Francisco

    Violencia y prosocialidad en los contenidos televisivos infantiles visionados por menores en no desaparecen. Los menores tienden a visionar más horas los programas de adultos que los específicamente. · La influencia en la conducta del niño es inversamente proporcional a la edad del mismo. Se aprecia

  8. Reglamento de cursos y exmenes Art. 1) Cargas y obligaciones de los estudiantes.

    E-print Network

    Reglamento de cursos y exámenes Art. 1°) Cargas y obligaciones de los estudiantes. Los estudiantes deben, mediante un acto expreso realizado en Bedelía de Facultad, inscribirse en los cursos que deseen realizar durante el semestre académico correspondiente. La inscripción a los cursos estará sujeta a las

  9. ¿Cuándo votan los pobres? Partidos, maquinarias y cambios constitucionales en el siglo XIX en Colombia

    Microsoft Academic Search

    Miguel Alonso Sarzosa

    2008-01-01

    En Colombia la democracia ha sido el mecanismo normal para acceder al poder. Sin embargo, desde los albores de la república los enfrentamientos bélicos partidistas y los cambios constitucionales fueron una constante. Este trabajo muestra cómo en el siglo XIX en Colombia, los cambios constitucionales estaban íntimamente relacionados con la popularidad del partido que gobernaba. A través de cambios constitucionales

  10. Impacto de la Red de Interconexión sobre los Protocolos de Coherencia en Sistemas Multiprocesador

    Microsoft Academic Search

    Lucía G. Menezo; Javier Merino; Pablo Prieto; Pablo Abad; José Ángel Gregorio

    1 Resumen—En este trabajo se han analizado algunas posibilidades de aceleración de los protocolos de coherencia empleando el conocimiento que la red de interconexión tiene o puede tener sobre los mensajes que circulan por los sistemas multiprocesador. Se ha determinado el número de saltos de los mensajes necesarios para mantener la coherencia empleando un entorno de simulación basado en el

  11. Los sistemas inteligentes de transporte y sus efectos en la movilidad urbana e interurbana

    Microsoft Academic Search

    Joana-Maria Seguí Pons; Maria Rosa Martínez Reynés

    2007-01-01

    El tráfico urbano es hoy complicado en la mayoría de las áreas metropolitanas de los países desarrollados en las que la congestión se ha convertido en un problema cotidiano de difícil solución. Un problema que produce efectos indeseados en la movilidad de los conductores y peatones. El incumplimiento de los horarios en los transportes públicos, el incremento del tiempo de

  12. Impactos de las regulaciones en los precios de suelo no urbanizado: caso de estudio Bogotá

    Microsoft Academic Search

    Oscar Borrero Ochoa; Carlos Morales Schechinger

    1970-01-01

    Las regulaciones urbanas en Latinoamérica que crean beneficios para los terratenientes en forma de mayores ganancias suelen ser bien recibidas, especialmente por los que tienen tierras donde se han concentrado más beneficios; por ejemplo, cuando los planes de zonificación autorizan la urbanización en un área pero la limitan en otra, o cuando los códigos de construcción estimulan un tipo de

  13. An Arabidopsis mutation in translation elongation factor 2 causes superinduction of CBF/DREB1 transcription factor genes but blocks the induction of their downstream targets under low temperatures

    PubMed Central

    Guo, Yan; Xiong, Liming; Ishitani, Manabu; Zhu, Jian-Kang

    2002-01-01

    Low temperature regulates gene expression in bacteria, yeast, and animals as well as in plants. However, the signal transduction cascades mediating the low temperature responses are not well understood in any organism. To identify components in low temperature signaling genetically, we isolated Arabidopsis thaliana mutants in which cold-responsive genes are no longer induced by low temperatures. One of these mutations, los1–1, specifically blocks low temperature-induced transcription of cold-responsive genes. Surprisingly, cold-induced expression of the early response transcriptional activators, C-repeat/dehydration responsive element binding factors (CBF/DREB1s), is enhanced by the los1–1 mutation. The los1–1 mutation also reduces the capacity of plants to develop freezing tolerance but does not impair the vernalization response. Genetic analysis indicated that los1–1 is a recessive mutation in a single nuclear gene. The LOS1 gene encodes a translation elongation factor 2-like protein. Protein labeling studies show that new protein synthesis is blocked in los1–1 mutant plants specifically in the cold. These results reveal a critical role of new protein synthesis in the proper transduction of low temperature signals. Our results also suggest that cold-induced transcription of CBF/DREB1s is feedback inhibited by their gene products or by products of their downstream target genes. PMID:12032361

  14. Needs assessment for fire department services and resources for the Los Alamos National Laboratory, Los Alamos, New Mexico. Final report

    SciTech Connect

    NONE

    1995-11-15

    This report has been developed in response to a request from the Los Alamos National Laboratory (LANL) to evaluate the need for fire department services so as to enable the Laboratory to plan effective fire protection and thereby: meet LANL`s regulatory and contractual obligations; interface with the Department of Energy (DOE) and other agencies on matters relating to fire and emergency services; and ensure appropriate protection of the community and environment. This study is an outgrowth of the 1993 Fire Department Needs Assessment (prepared for DOE) but is developed from the LANL perspective. Input has been received from cognizant and responsible representatives at LANL, DOE, Los Alamos County (LAC) and the Los Alamos Fire Department (LAFD).

  15. LOS COMITÉS DE ÉTICA DE INVESTIGACIÓN BIOMEDICA Y PSICOSOCIAL EN BOLIVIA*

    PubMed Central

    Zwareva Mashiri, Elizabeth C.

    2010-01-01

    Este artículo reporta un estudio realizado en las ciudades de La Paz, Cochabamba, y Santa Cruz en Bolivia. Interesaba saber cuál era la situación de la bioética en Bolivia y cómo se estaba protegiendo a los sujetos de investigación. Luego de revisar algunos conceptos bioéticos, la legislación boliviana y los métodos del estudio, se dan a conocer los resultados del mismo, los cuales revelan gran desconocimiento respecto de cómo proteger los derechos de los sujetos, por la casi ausencia o el inadecuado funcionamiento de los comités de ética de la investigación. PMID:20802822

  16. Ecosystem studies at the Los Medanos site, Eddy County, New Mexico. Volume I

    SciTech Connect

    Hart, J.S. (ed.)

    1981-05-01

    This report summarizes the results of biological studies conducted during 1980 at the Los Medanos site in southeastern New Mexico. The studies include: (1) densities and species composition of the avifauna of the Los Medanos site; (2) aquatic ecosystems of the lower Pecos drainage; (3) floristic studies at the Los Medanos site; (4) plant successional, grazing, trampling, and salt studies on the Los Medanos site; (5) soil and vegetation studies at the Los Medanos site; (6) arthropod and decomposition studies at the WIPP site; (7) amphibians, reptiles and mammals at the Los Medanos site; (8) vertebrate ecology at the Los Medanos site; and (9) statistical analysis and data management. 7 refs. (ACR)

  17. Ayudando a los Nios Pequeos a Aprender y a Crecer Es importante aprender acerca de cules son los mejores cuidados para el desarrollo de infantes y

    E-print Network

    Ayudando a los Niños Pequeños a Aprender y a Crecer Es importante aprender acerca de cuáles son los mejores cuidados para el desarrollo de infantes y niños. Sabemos que tener una relación llena de amor y cálida entre los niños pequeños y los adultos involucrados en sus vidas tiene una influencia perdurable

  18. Perinatal Risk Factors and Autism in Los Angeles County: The Role of Air Pollution, Maternal Race/Ethnicity and Nativity

    E-print Network

    Becerra, Tracy Ann

    2013-01-01

    autism diagnostic observation schedule-generic: a standard measureeffect measure modification of the air pollution and autismmeasures suggest a link between Autistic Disorder and traffic-related exposures during pregnancy. Ideally, future autism and

  19. Factors associated with HIV testing history among Black men who have sex with men (BMSM) in Los Angeles County

    PubMed Central

    Washington, Thomas Alex; Robles, Gabriel; Malotte, Kevin

    2013-01-01

    Black men who have sex with men (BMSM) are disproportionately affected with HIV, and nearly half are unaware of their status. Those unaware of their status are more likely to engage in risky behavior; thus, HIV-testing uptake is crucial. This study explored correlates of past 2-year HIV-testing history. BMSM (n = 102) completed self-administered questionnaires. Fisher exact test indicated that BMSM at clubs/bars and gay pride events had higher rates of being tested within the past two years (86%?65%) than did participants who responded to online advertisements (44%, p < 0.001). Those untested for HIV were more likely to have had receptive anal sex without a condom (50 % vs 25%, p = 0.033), used the Internet seeking sex (65% vs 26%, p < 0.001), low HIV knowledge (52% vs 22%, p = 0.005), and less education. Literacy and tailored online interventions might be worth considering to increase HIV-testing uptake. PMID:23930896

  20. Use of Historical Radar Rainfall Estimates to Develop Design Storms in Los Angeles.

    NASA Astrophysics Data System (ADS)

    Curtis, D. C.; Humphrey, J.; Moffitt, J.

    2007-12-01

    A database of 15-minute historical gage adjusted radar-rainfall estimates was used to evaluate the geometric properties of storms in the City of Los Angeles, CA. The database includes selected months containing significant rainfall during the period 1996-2007. For each time step, areas of contiguous rainfall were identified as individual storm cells. An idealized ellipse was fit to each storm cell and the properties of the ellipse (e.g., size, shape, orientation, velocity and other parameters) were recorded. To accurately account for the range of storm cell sizes, capture a large number of storm cells in a climatologically similar area, assess the variability of storm movement, and minimize the impact of edge effects (i.e., incomplete coverage of cells entering and leaving), a study area substantially larger than the City of Los Angeles was used. The study area extends from city center to 30 miles north to the crest of San Gabriel Mountains, 45 miles east to Ontario, 60 miles south to Santa Catalina Island, and 70 miles west to Oxnard, an area of about10,000 square miles. Radar data for this area over 30 months in the study yields many thousands of storm cells for analysis. Storms were separated into classes by origin, direction and speed of movement. Preliminary investigations considers three types: Arctic origin (west-northwest), Pacific origin (southwest) and Tropical origin (south or stationary). Radar data (for 1996-2007) and upper air maps (1948-2006) are used to identify the direction and speed of significant precipitation events. Typical duration and temporal patterns of Los Angeles historical storms were described by season and storm type. Time of maximum intensity loading variation were determined for a selection of historic storms Depth-Areal Reduction Factors (DARF) for cloudbursts were developedfrom the radar data. These data curves are fit to equations showing the relationships between DARF, area and central intensity. Separate DARF curves are developed for 6X (6 events per year), 4X, 3X, 2X, 1, 2, 5 and 10 year recurrence, and durations from 5 minutes to 7-days. A comparison is made between DARF derived in these analyses with NOAA Atlas 12 DARF, the USACE Sierra Madre Storm and other DARF developed for the interior Southwest. Orographic increases in DDF are related to the Los Angeles County Flood Control District Hydrology Manual 24-hr 50-yr Precipitation maps, elevation from USGS topographic maps and Mean Annual Precipitation maps.