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1

Selección de los principales problemas de seguridad de las vacunas  

Microsoft Academic Search

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

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

2008-01-01

2

Gasto público en educación frente al comportamiento de los principales agregados económicos en Latinoamérica  

Microsoft Academic Search

La educación es una de las principales herramientas utilizadas por los gobiernos para lograr el crecimiento y desarrollo de un país. En consecuencia, las inversiones que se hagan en este rubro impactan, positivamente, de alguna manera, el comportamiento de variables económicas tales como el Producto Interno Bruto y la tasa de desempleo. Desafortunadamente, este escenario no siempre resulta ser así

Fabio Enrique Gómez Meneses; María Alexandra Zárate Camelo

2011-01-01

3

ANÁLISIS ESTADÍSTICO DE DATOS DE CALIDAD DE AGUA DE LOS POZOS EN LA REGIÓN Y EN LAS PRINCIPALES CIUDADES DEL ACUÍFERO DE IRAPUATO-VALLE, GUANAJUATO, MÉXICO  

Microsoft Academic Search

Resumen - En base a la necesidad de conocer si un evento extraordinario de lluvias en el acuífero de Irapuato Valle afectó la calidad del agua subterránea extraída, se realizó un análisis estadístico a través de pruebas no paramétricas de datos ordenados por rango y de nivel nominal de los parámetros físicos, químicos y bacteriológicos que determinan la calidad del

José de Jesús; Mora Rodríguez; Carlos Gutiérrez Ojeda; Luis González Hita

4

Modelo gravitatorio y turismo: Una aplicación a los flujos monetarios interregionales del sector Turismo en España  

Microsoft Academic Search

RESUMEN: Este trabajo analiza los flujos monetarios domésticos del sector Turismo en España mediante diferentes especificaciones del modelo gravitatorio, aplicados a tres estimaciones alternativas de los flujos monetarios bilaterales. Los modelos han permitido identificar las principales variables que actúan como factores de atracción de los flujos interregionales, obteniendo elasticidades diferentes para la variable distancia a las observadas en los flujos

Tamara de la Mata; Carlos Llano

2010-01-01

5

Factors affecting radionuclide availability to vegetables grown at Los Alamos  

SciTech Connect

A field study was conducted in 1977 on /sup 238/ /sup 239/Pu and /sup 137/Cs availability to zucchini squash (Curcurbita melopepo, hybrid seneca) and green bush beans (Phaseolus vulgaris, Landreths stringless) grown under home-garden conditions in an area at Los Alamos National Laboratory used for treated radioactive liquid waste disposal. Radionuclide concentrations were measured as a function of tissue type, height above the soil, fertilization regime, and for the squash, food-cleansing procedures. Analysis of variance procedures was used to analyze the data. Ratios of the concentration of a radionuclide in oven-dried vegetation to dry soil ranged from 0.0004 to 0.116 for the Pu isotopes, and from 0.051 to 0.255 for /sup 137/Cs. Fertilization with cattle manure reduced the Pu concentration ratios by 30% and /sup 137/Cs by 50%. Vegetative parts sampled within 20 cm of the ground surface were contaminated about four times as much as those parts growing further from the ground surface. About 65% of the contamination was removed by washing, indicating the presence of surficial contamination. The 50-year radiation dose commitment to humans consuming vegetables from the garden plot would be less than 0.05 mrem and would be due almost entirely to /sup 137/Cs.

White, G.C.; Hakonson, T.E.; Ahlquist, A.J.

1981-07-01

6

Source apportionment of VOCs in the Los Angeles area using positive matrix factorization  

NASA Astrophysics Data System (ADS)

Eight 3-h speciated hydrocarbon measurements were collected daily by the South Coast Air Quality Management District (SCAQMD) as part of the Photochemical Assessment Monitoring Stations (PAMS) program during the summers of 2001-03 at two sites in the Los Angeles air basin, Azusa and Hawthorne. Over 30 hydrocarbons from over 500 samples at Azusa and 600 samples at Hawthorne were subsequently analyzed using the multivariate receptor model positive matrix factorization (PMF). At Azusa and Hawthorne, five and six factors were identified, respectively, with a good comparison between predicted and measured mass. At Azusa, evaporative emissions (a median of 31% of the total mass), motor vehicle exhaust (22%), liquid/unburned gasoline (27%), coatings (17%), and biogenic emissions (3%) factors were identified. Factors identified at Hawthorne were evaporative emissions (a median of 34% of the total mass), motor vehicle exhaust (24%), industrial process losses (15%), natural gas (13%), liquid/unburned gasoline (13%), and biogenic emissions (1%). Together, the median contribution from mobile source-related factors (exhaust, evaporative emissions, and liquid/unburned gasoline) was 80% and 71% at Azusa and Hawthorne, respectively, similar to previous source apportionment results using the chemical mass balance (CMB) model. There is a difference in the distribution among mobile source factors compared to the CMB work, with an increase in the contribution from evaporative emissions, though the cause (changes in emissions or differences between models) is unknown.

Brown, Steven G.; Frankel, Anna; Hafner, Hilary R.

7

Yeast Los1p Has Properties of an Exportin-Like Nucleocytoplasmic Transport Factor for tRNA  

PubMed Central

Saccharomyces cerevisiae Los1p, which is genetically linked to the nuclear pore protein Nsp1p and several tRNA biogenesis factors, was recently grouped into the family of importin/karyopherin-?-like proteins on the basis of its sequence similarity. In a two-hybrid screen, we identified Nup2p as a nucleoporin interacting with Los1p. Subsequent purification of Los1p from yeast demonstrates its physical association not only with Nup2p but also with Nsp1p. By the use of the Gsp1p-G21V mutant, Los1p was shown to preferentially bind to the GTP-bound form of yeast Ran. Furthermore, overexpression of full-length or N-terminally truncated Los1p was shown to have dominant-negative effects on cell growth and different nuclear export pathways. Finally, Los1p could interact with Gsp1p-GTP, but only in the presence of tRNA, as revealed in an indirect in vitro binding assay. These data confirm the homology between Los1p and the recently identified human exportin for tRNA and reinforce the possibility of a role for Los1p in nuclear export of tRNA in yeast. PMID:9774653

Hellmuth, Klaus; Lau, Denise M.; Bischoff, F. Ralf; Künzler, Markus; Hurt, Ed; Simos, George

1998-01-01

8

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

Microsoft Academic Search

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

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

2009-01-01

9

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

PubMed

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

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

2015-01-01

10

TUDE LMENTAIRE DE LA RFRACTION DANS UN PRISME HORS DE LA SECTION PRINCIPALE. LOIS DE BRAVAIS  

E-print Network

�TUDE �L�MENTAIRE DE LA R�FRACTION DANS UN PRISME HORS DE LA SECTION PRINCIPALE. LOIS DE BRAVAIS d'un rayon à travers un prisme hors du plan de la section principale. D'un point 0 quelconque (fig vecteur BA est :parallèle à la normale à la première face du prisme. Article published online by EDP

Paris-Sud XI, Université de

11

Informe a la Nación indica que el índice de mortalidad por cáncer sigue bajando; la sección especial destaca las tendencias de los cánceres asociados con el VPH y los grados de cobertura de vacunación contra el VPH.  

Cancer.gov

El Informe Anual a la Nación sobre el Estado del Cáncer, de 1975 a 2009, indica que los índices generales de mortalidad por cáncer siguen bajando en los Estados Unidos en hombres y mujeres, entre todos los grupos raciales y étnicos principales y para todos los sitios más comunes de cáncer, como pulmón, colon y recto, seno femenino y próstata.

12

Factoring  

NSDL National Science Digital Library

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 ...

Mr Clark

2012-10-31

13

El Informe Anual a la Nación indica que las tasas de mortalidad por cáncer continúan declinando. Se observan tasas menores de cáncer en las poblaciones latinas de los Estados Unidos.  

Cancer.gov

Un informe nuevo de las principales organizaciones oncológicas de la nación informa que el riesgo de los estadounidenses de morir por cáncer continúa descendiendo, y que mantiene una tendencia que comenzó a principios de los años noventa. Preguntas y respuestas

14

Factors affecting fuel break effectiveness in the control of large fires on the Los Padres National Forest, California  

USGS Publications Warehouse

As wildfires have increased in frequency and extent, so have the number of homes developed in the wildland-urban interface. In California, the predominant approach to mitigating fire risk is construction of fuel breaks, but there has been little empirical study of their role in controlling large fires.We constructed a spatial database of fuel breaks on the Los Padres National Forest in southern California to better understand characteristics of fuel breaks that affect the behaviour of large fires and to map where fires and fuel breaks most commonly intersect. We evaluated whether fires stopped or crossed over fuel breaks over a 28-year period and compared the outcomes with physical characteristics of the sites, weather and firefighting activities during the fire event. Many fuel breaks never intersected fires, but others intersected several, primarily in historically fire-prone areas. Fires stopped at fuel breaks 46% of the time, almost invariably owing to fire suppression activities. Firefighter access to treatments, smaller fires and longer fuel breaks were significant direct influences, and younger vegetation and fuel break maintenance indirectly improved the outcome by facilitating firefighter access. This study illustrates the importance of strategic location of fuel breaks because they have been most effective where they provided access for firefighting activities.

Syphard, Alexandra D.; Keeley, Jon E.; Brennan, Teresa J.

2011-01-01

15

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

PubMed Central

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

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

2013-01-01

16

Environmental factors affecting tissue regeneration of the reef--building coral Montastraea annularis (Faviidae) at Los Roques National Park, Venezuela.  

PubMed

In this study, the rates of tissue regeneration and recovery from injuries that emulated the bites of either butterfly or parrotfish on colonies of Montastraea annularis exposed to different sedimentation regimesp were determined. Two small reef patches were chosen close to key Dos Mosquises, north of the Venezuclan mainland. Sixteen colonies (8 treatments + a single replicate) were artificially damaged at each patch and their recovery was monitored for three months by photographic means. The lesions were inflicted using two different techniques: scratching the polyps with a hard-nylon brush to resemble parrotfish (Scaridae) damages (Lesions Type 1) or jetting out the tissue with a syringe to simulate butterflyfish (Chaetondontidae) bites (Lesions Type 2). The diameter of the wounds ranged from 5 (small lesion) to 8 cm (large lesions) and both kinds were inflicted on the top and bottom of the colonies, with a single replicate for each treatment. The main factors affecting the recovery of the colonies' surface were lesion features (type, position and size), turbidity and chiefly, the sedimentation rate. While lesion recovery was slow where sedimentation and resuspension rates were high, tissue regeneration was improved under low sedimentation and resuspension conditions. Moreover, lesions located at the bottom of colonies regenerated completely, whereas sediments frequently covered top lesions and limited their recovery. More than 60% of the colonies with small lesions recovered almost completely in less than 90 days, whereas those with larger injuries frequently showed extensions of their damage and increased mortality. Tissue-only lesions (LT2) regenerated two to three times faster than those involving both tissue and skeletal damage (LT1). Other variables not controlled in this study, such as diseases, encrusting organisms overgrowth and herbivory introduced further variability to the regeneration rates. PMID:12947589

Cróquer, Aldo; Villamizar, Estrella; Noriega, Nicida

2002-01-01

17

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

SciTech Connect

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

Oka, Jude M. [Los Alamos National Laboratory

2012-08-06

18

Factorize  

NSDL National Science Digital Library

This interactive applet allows a student to visually explore the concept of factors by creating different rectangular arrays for a number. The user constructs the array by clicking and dragging on a grid. The length and width of the array are factors of the number. A student can elect an option of a randomly selected number or the student selects his own number between 2 and 50. Exploration questions are included to promote student discovery of mathematical concepts with factors.

2000-01-01

19

Risk Factors for Four-Year Incidence and Progression of Age-Related Macular Degeneration: The Los Angeles Latino Eye Study  

PubMed Central

PURPOSE To identify risk factors for 4-year incidence and progression of age-related macular degeneration (AMD) in adult Latinos. DESIGN Population-based prospective cohort study. METHODS Participants, aged 40 or older, from The Los Angeles Latino Eye Study (LALES) underwent standardized comprehensive ophthalmologic examinations at baseline and at 4 years of follow-up. Age-related macular degeneration was detected by grading 30-degree stereoscopic fundus photographs using the modified Wisconsin Age-Related Maculopathy Grading System. Multivariate stepwise logistic regression was used to examine the independent association of incidence and progression of AMD and baseline sociodemographic, behavioral, clinical, and ocular characteristics. RESULTS Multivariate analyses revealed that older age (OR per decade of age: 1.52; 95% CI: 1.29, 1.85) and higher pulse pressure (OR per 10 mm Hg: 2.54; 95% CI: 1.36, 4.76) were independently associated with the incidence of any AMD. The same factors were associated with early AMD, soft indistinct drusen, and retinal pigmentary abnormalities. Additionally, presence of clinically diagnosed diabetes mellitus was independently associated with increased retinal pigment (OR: 1.66; 95% CI: 1.01, 2.85), and male gender was associated with retinal pigment epithelial depigmentation (OR 2.50; 95% CI: 1.48, 4.23). Older age (OR per decade of age: 2.20; 95% CI: 1.82, 2.67) and current smoking (OR: 2.85; 95% CI: 1.66, 4.90) were independently associated with progression of AMD. CONCLUSIONS Several modifiable risk factors were associated with 4-year incidence and progression of AMD in Latinos. The results suggest that interventions aimed at reducing pulse pressure and promoting smoking cessation may reduce incidence and progression of AMD, respectively. PMID:21679916

CHOUDHURY, FARZANA; VARMA, ROHIT; MCKEAN-COWDIN, ROBERTA; KLEIN, RONALD; AZEN, STANLEY P.

2011-01-01

20

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

NASA Astrophysics Data System (ADS)

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 two- to 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 freeways with the highest HDD fractions are significantly worse sources of total emissions in Los Angeles may no longer be~true.

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

2013-01-01

21

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

PubMed Central

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

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

2013-01-01

22

Principales resultados del Estudio Nacional de Exámenes de pulmón (NLST): Síntesis  

Cancer.gov

El 4 de noviembre de 2010, el Estudio Nacional de Exámenes de Pulmón dio a conocer resultados iniciales que indican que hubo 20% menos muertes por cáncer de pulmón entre los participantes del estudio evaluados con tomografía computarizada espiral de baja dosis (también conocida como tomografía computarizada helicoidal) que en los participantes que fueron evaluados con radiografías de pecho.

23

Informe Anual a la Nación indica que los índices generales de cáncer siguen disminuyendo; su sección especial destaca las tendencias actuales y pronósticos del cáncer colorrectal  

Cancer.gov

Los índices de casos nuevos diagnosticados y los índices de muertes de todos los tipos de cáncer combinados disminuyeron en forma considerable en el período más reciente para hombres y mujeres en general, y para la mayoría de las poblaciones raciales y étnicas de Estados Unidos, según un informe de las principales organizaciones de salud y oncológicas.

24

Le travail de deuil Le travail de deuil consiste principalement dsinvestir l'amour pour un objet perdu.  

E-print Network

Le travail de deuil Le travail de deuil consiste principalement à désinvestir l'amour pour un objet quelques restes d'amour ou de pitié qui se présentent à son imagination tirent de véritables larmes de ses

Boyer, Edmond

25

enero-marzo2008Cinvestav24 Una de las metas principales de la criptografa  

E-print Network

la condición de que no existan premisas sobre la sofisticación tecnológica o poder computacional del. Aun si su validez fuera probada, tendríamos que adivinar el poder computacional teórico de un intruso de los algoritmos clásicos utilizados en la práctica yacen en la llamada "seguridad computacional", i

Rosas-Ortiz, Jose Oscar

26

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

E-print Network

of New York at Buffalo Chair of Advisory Committee: Dr. Milton McLain More than 2, 800 employees and contractor personnel at the Los Alamos National Laboratory (LANL) were evaluated by a Phoswichm detector system for plutonium and americium lung... Statistical Analysis RESULTS 14 15 17 19 21 22 26 Chi-square Results for Kl Correlation Coefficients for Kl Distributions of Net Count Rates and Activity in Region 1 Chi-square Results for K2 Correlation Coefficients for K2 Distributions of Net...

Myers, Steven Charles

1992-01-01

27

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.

28

I Congreso Internacional "Los Ciudadanos y la Gestin de la Movilidad", 25-27 Septiembre 2006, Madrid (Espaa) (2006) 16 p.  

E-print Network

I Congreso Internacional "Los Ciudadanos y la Gestión de la Movilidad", 25-27 Septiembre 2006, Madrid (España) (2006) 16 p. MOVILIDAD Y DESIGUALDADES SOCIALES Y TERRITORIALES Dra. Lourdes Díaz Olvera desigualdades de movilidad. Primero abordamos los principales resultados de una investigación sobre la medida

Paris-Sud XI, Université de

29

PRINCIPALES CONCEPCIONES TEÓRICAS SOBRE MARKETING DE SERVICIOS: NECESIDAD DEL ESTUDIO Y APLICACIÓN DE LA CALIDAD DE SERVICIO PERCIBIDA  

Microsoft Academic Search

El sector terciario de la economía ha crecido a pasos gigantescos en los últimos años. A nivel mundial, el desarrollo de diferentes empresas que brindan paralelamente los mismos servicios, ha hecho muy notable la competencia entre ellas, por lo que se ha intensificado la puesta en práctica de la tecnología del marketing para lograr diferenciación en el mercado, formar parte

Yelenys Díaz González; Roberto Carmelo Pons García

2009-01-01

30

Informe Anual a la Nación indica una reducción en los índices de incidencia y mortalidad por cáncer; una sección especial revela amplias variaciones en las tendencias del cáncer de pulmón en los estados  

Cancer.gov

Un nuevo informe de las principales organizaciones oncológicas del país muestra que, por primera vez desde la primera publicación del informe en 1998, tanto el índice de incidencia como el de mortalidad para todos los cánceres combinados están disminuyendo en hombres y mujeres.

31

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)

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.

Hatayama, K.; Kalkan, E.

2012-12-01

32

Caracterisation de la signature spectrale des unités de paysages tropicaux a l'aide de l'analyse en composantes principales (ACP)  

NASA Astrophysics Data System (ADS)

La distribution des valeurs radiométriques recalculées par l'Analyse en Composantes Principales (ACP), des points d'une image multispectrale, peut être représentée dans le plan des deux premiers axes (composantes ayant les plus fortes valeurs propres). On définit alors dans ce plan des domaines caractérisant les unités de paysage recherchées, afin de classer les points de l'image.

Chaume, D.; Nguyen, T.; Oudin, M. F.; Savary, G.

33

4O de la direction principale du polariseur. En rsum, si le pola--ri:;eur et la double rfraction du quartz conservent une orientation fixe,  

E-print Network

fait la section principale de l'analyseu1- avec celle du polariseur sont alors 7c et 2'~ + 2013 Cette perturbations nuisibles. Elles sont produites par la synchronisation des oscillations propres de l'équipage et'après la théorie connue de la synchronisa- tion des oscillants. La synchronisation se produira d

Paris-Sud XI, Université de

34

Poich il28 Ottobre prevista alla stessa ora l'Assemblea Generale del Personale nell'Androne Principale del Policlinico Umberto I  

E-print Network

'Androne Principale del Policlinico Umberto I: E' convocata la Riunione di tutti i componenti della R.S.U. per Policlinico Umberto I; 5) Situazione Personale del Policlinico Umberto I; 6) Progetti obiettivi: attività in regime di straordinario (Policlinico Umberto I); 7) Ipotesi di dotazione organica per il personale del

Guidoni, Leonardo

35

Factors influencing tropical island freshwater fishes:Species, status, and management implications in puerto rico [Factores que influencian a los peces tropicales de agua dulce: Especies, estado actual e implicaciones para el manejo en Puerto Rico  

USGS Publications Warehouse

Anthropogenic effects including river regulation, watershed development, contamination, and fish introductions have substantially affected the majority of freshwater habitats in Europe and North America. This pattern of resource development and degradation is widespread in the tropics, and often little is known about the resources before they are lost. This article describes the freshwater resources of Puerto Rico and identifies factors that threaten conservation of native fishes. The fishes found in freshwater habitats of Puerto Rico represent a moderately diverse assemblage composed of 14 orders, 29 families, and 82 species. There are fewer than 10 species of native peripherally-freshwater fish that require a link to marine systems. Introductions of nonindigenous species have greatly expanded fish diversity in freshwater systems, and native estuarine and marine species (18 families) also commonly enter lowland rivers and brackish lagoons. Environmental alterations, including land use and development, stream channelization, pollution, and the impoundment of rivers, combined with nonnative species introductions threaten the health and sustainability of aquatic resources in Puerto Rico. Six principal areas for attention that are important influences on the current and future status of the freshwater fish resources of Puerto Rico are identified and discussed.

Wesley, Neal J.; Lilyestrom, C.G.; Kwak, T.J.

2009-01-01

36

Integracion espacial del mercado de la carne en las tres principales ciudades de Colombia: Evidencia de las series de precios  

Microsoft Academic Search

En este documento se presenta un estudio sobre la integración espacial de los mercados de carne de res y cerdo, con y sin hueso, pollo despresado y pollo entero, de Bogotá, Medellín y Cali, a partir de datos mensuales entre enero de 1999 y mayo de 2007. Se emplean la prueba de cointegración de Johansen y la prueba no paramétrica

Julio Cesar Alonso; Ana Isabel Gallego

2011-01-01

37

Se identifica una relación entre la falta de exámenes de detección y una gran parte de los casos de cáncer de seno en la etapa avanzada  

Cancer.gov

Los autores de un estudio publicado el 20 de octubre de 2004 en la revista Journal of the National Cancer Institute1? declaran que las dos prioridades principales del sistema de salud deben ser aumentar el porcentaje de exámenes de mamografía e invertir en investigaciones que mejoren la tecnología para detectar el cáncer de seno.

38

Los marginados como personajes: Teatro chileno de la década de los sesenta  

E-print Network

factores artísticos. Por el contrario, la selección de agonistas se vincula ideo lógicamente con el sistema de valores del grupo productor del discurso teatral y el destinatario del mismo.1 Describir el discurso teatral chileno desde esta perspectiva... un indicador de los intereses políticos del grupo productor dentro del contexto nacional.2 El discurso teatral chileno hegemónico—el reconocido como "representativo"—ha sido generalmente el discurso de los sectores medios destinado a los mismos...

Villegas, Juan

1986-04-01

39

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

40

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

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

Connor, Phillip; Massey, Douglas

2013-01-01

41

Exploring Los Angeles Exploring Los Angeles  

E-print Network

3760 S. Figueroa St. Los Angeles, CA 90007 The Tuscany complex includes Chipotle Mexican Grill, Chick Fil-A, Quiznos Sandwiches, Coldstone Cream- ery and the Coffee Bean and Tea Leaf. University Gateway

Southern California, University of

42

Tecnología de información e innovación. Factores clave de la competitividad en las pequeñas y medianas empresas  

Microsoft Academic Search

En el presente trabajo se muestran algunas políticas ejecutadas por el gobierno nacional, en función de im- pulsar el desarrollo científico y tecnológico del país, así como las principales limitaciones que presentan las peque- ñas y medianas empresas (pymes) para acceder a las tecnologías de información y comunicación, tomando como base los resultados de un diagnóstico efectuado a 8 pymes

Leal Morantes; Miraidy Elena

43

El Informe Anual a la Nación indica que las tasas de mortalidad por cáncer continúan declinando: los avances en el tratamiento del cáncer varían según el tipo de cáncer  

Cancer.gov

Las organizaciones oncológicas principales de la nación informan que el riesgo de los estadounidenses de morir de cáncer sigue disminuyendo y que las tasas de casos nuevos de cáncer permanecen estables. El Informe Anual a la Nación sobre el Estado del Cáncer, de 1975 a 2002, señala que las tasas de mortalidad de cáncer que se observaron para todos los cánceres combinados disminuyeron 1,1 por ciento por año de 1993 a 2002.

44

Stockpile Stewardship: Los Alamos  

SciTech Connect

"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.

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

2012-01-26

45

Stockpile Stewardship: Los Alamos  

ScienceCinema

"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.

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

2014-08-12

46

Las estadísticas Oficiales de Turismo: principales lagunas en el contexto nacional e internacional \\/Official Statistics of Tourism: Major Gaps in the National and International Context  

Microsoft Academic Search

En el ámbito de las estadísticas de turismo se han producido notables desarrollos en los últimos años, tanto por parte del sector público como del privado. El actual sistema de estadísticas oficiales de turismo en España se puede considerar como uno de los más desarrollados en el contexto internacional pero todavía persisten importantes lagunas de información. La comparabilidad de resultados

FERNANDO CORTINA GARCIA

2011-01-01

47

Etnoclimatología de los Andes  

Microsoft Academic Search

sinos de los Andes peruanos y bolivianos se congregan en peque?os grupos hacia la mitad de la noche. Han su-bido empinadas pendientes y, a me-nudo, escalado los picos. Tras el sols-ticio de invierno, son las noches más largas del a?o y, con frecuencia las más frías también. Cientos de tales gru-pos de aldeanos se reúnen en una zona extensa, desde

Benjamin S. Orlove

48

Los Alamos offers Fellowships  

NASA Astrophysics Data System (ADS)

Los Alamos National Laboratory in New Mexico is calling for applications for postdoctoral appointments and research fellowships. The positions are available in geoscience as well as other scientific disciplines.The laboratory, which is operated by the University of California for the Department of Energy, awards J. Robert Oppenheimer Research Fellowships to scientists that either have or will soon complete doctoral degrees. The appointments are for two years, are renewable for a third year, and carry a stipend of $51,865 per year. Potential applicants should send a resume or employment application and a statement of research goals to Carol M. Rich, Div. 89, Human Resources Development Division, MS P290, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 by mid-November.

49

puisement professionnel : principales approches conceptuelles,  

E-print Network

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

Boyer, Edmond

50

¿Qué son los estudios clínicos?  

Cancer.gov

Información que describe los conceptos básicos de los estudios o ensayos clínicos, dónde se llevan a cabo y qué tipos hay de estudios clínicos. También explica las fases de los estudios, la asignación al azar y los miembros del equipo de investigación.

51

Los Angeles Coastal Margin  

NSDL National Science Digital Library

This image by the USGS Pacific Sea Floor Mapping Project shows the complex and rugged nature of the continental margin off the coast of Los Angeles, CA. The image may be useful for examining erosiona and deposition on the continental shelf, as well as identifying sediment transport pathways or areas of potential mass movement.

Pacific Seafloor Mapping Project

52

Los Angeles PACIFICOCEAN  

E-print Network

sensing, telemetry, computer-based collaboration, assistive technology, human-computer interaction S. Hughey, T. Larrabee, D. Pease, J. Renau, M. Schlag Sensing and Interaction: Computer vision, remote Jose, 75 miles south of San Francisco, and 350 miles north of Los Angeles. Computer Engineering @ UC

California at Santa Cruz, University of

53

Children's Hospital Los Angeles  

Cancer.gov

The Pediatric Psychology Program at Children's Hospital Los Angeles (CHLA) consists of outpatient and inpatient hospital-based services that provide therapeutic support and intervention to children and families. The pediatric psychology postdoctoral fellows will participate in varied clinical activities with child and adolescent patients and their families.

54

Los Angeles, California  

ERIC Educational Resources Information Center

This article features Safe Haven Project, a comprehensive school-based education and victim services program that focuses on anti-lesbian, gay, bisexual, transgender, and questioning (LGBTQ) bias in diverse neighborhoods of the Los Angeles Unified School District (LAUSD). In its effort to help schools articulate and practice a vision of a more…

Glasgow, Karen

2003-01-01

55

LA FORMACIÓN DE LOS DOCENTES PARA ENFRENTAR LOS RETOS EN LA ENSEÑANZA DE LA COMUNICACIÓN  

Microsoft Academic Search

El Profesor Titular Ricardo González Menéndez (año 2002) y la Dra. En Ciencias Psicológicas Lucía Alba Pérez (año 2004) plantean que:”La comunicación fue y es un factor fundamental desde el punto de vista social en el desarrollo del hombre, tanto en lo psíquico como en lo sociológico, teniendo gran influencia en el desarrollo de los procesos lógicos del pensamiento”.

Juan Francisco Tejera Concepción

2008-01-01

56

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

57

Los Angeles Pierce College Portland State University Los Angeles  

E-print Network

Los Angeles Pierce College Portland State University Los Angeles Transfer Worksheet If you Angeles Pierce College (LAPC), you can rest assured that those credits will also transfer to Portland. Degree Requirements (BA, BS) #12;Los Angeles Pierce College Portland State University 2. DEGREE

Caughman, John

58

STATE NORMALSCHOOL LOS ANGELES, CALIFORNIA  

E-print Network

MELROSE, - Anaheim GEORGE I. COCHRAN, - Los Angeles ALONZO B. CASS, - - Los Angeles OFFICERSOF THE BOARD ,/BEATRICE CHANDLER PATTON, E.B.nSARAHE. WOODBURY JMARGARET O'DONOUGHUE, OfficeSecretary l ELIZABETHH. FARGO

Grether, Gregory

59

Se inicia estudio de los NIH sobre respuestas excepcionales al tratamiento del cáncer  

Cancer.gov

La Iniciativa de Respuestas Excepcionales (Exceptional Responders Initiative), un estudio que investiga los factores moleculares de los tumores en pacientes de cáncer que responden en forma excepcional al tratamiento con medicamentos, se inició hoy bajo la guía del Instituto Nacional del Cáncer (NCI). Los científicos tratarán de identificar en los tumores las características moleculares que predicen si un medicamento o una clase de medicamento en particular será beneficioso o no.

60

Los Alamos Spheromak Program  

SciTech Connect

The Los Alamos Spheromak Program consists of two experimental facilities. The confinement physics of sustained and decaying spheromaks are being studied in CTX, which has an extensive array of diagnostics. Experiments are directed towards extending the physics understanding of the spheromak as a magnetic confinement concept. Electrodes for the production of clean sustained spheromaks are developed on the Electrode Facility, which is more flexible in terms of experimental modifications. Improvements to helicity sources and elecrodes which are proven on the Electrode Facility are then considered for incorporation onto CTX.

Knox, S.O.; Barnes, C.W.; Fernandez, J.C.; Henins, I.; Hoida, H.W.; Klingner, P.L.; Platts, D.A.; Sherwood, A.R.; Wright, B.L.; Jarboe, T.R.

1985-01-01

61

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.

2012-08-28

62

Evaluación de los modelos de pronóstico aplicados para la demanda turística internacional hacia Colombia  

Microsoft Academic Search

En la actualidad, existen factores de orden financiero, cultural, social y medioambiental susceptibles de ser utilizados para explicar los flujos turísticos internacionales desde y hacia un país. (Coshall, 2000: 218). No obstante, se analizan algunos factores económicos que pueden afectar los viajes o estancias de las personas. A partir de 1970 hasta 1977, el sector turístico colombiano dependía en un

Dennys MarrugoTorrente

2009-01-01

63

Los Angeles San Francisco  

E-print Network

Airport Customer Society Government Downstream Participants Labor External Factor Cost While the airline industry generates an economic deficit, others in the travel eco- system such as government, customers, and labor years of data Source: CapIQ, Compustat, L.E.K. analysis However, over the past 10 years there have been

Entekhabi, Dara

64

Los Angeles Economic Roundtable  

NSDL National Science Digital Library

Since 1983, the L.A. Economic Roundtable has worked on two primary goals: to build a sustainable economy and to create inclusive communities. Producing solid, reliable data to aid policymakers is the Roundtable's area of expertise. The website's "areas of research" and "current projects" will give visitors a good overview of what types of issues the Roundtable addresses. Industrial policy, the labor market, and human services are the areas of research the Roundtable concentrates on, and each area has its own separate link. Some of the papers and presentations that are available in the Human Services area of research include a 129 page downloadable report "Where We Sleep: The Costs of Housing and Homelessness in Los Angeles" and a new report entitled "Dividends of a Hand Up: Public Benefits of Moving Indigent Adults with Disabilities onto SSI". The Roundtable's current projects include research on affordable housing, a crisis indicator to identify high-need homeless people, and the water use efficiency sector's impact on jobs.

65

Factor Trees  

NSDL National Science Digital Library

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.

2010-01-01

66

Factor Trees  

NSDL National Science Digital Library

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.

Math Playground

2009-07-29

67

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

Microsoft Academic Search

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

1994-01-01

68

los alimentos y la biotecnologa  

E-print Network

El metro, los alimentos y la biotecnología #12;Gobierno del Distrito Federal Lic. Alejandro Encinas Coordinación de la Investigación Científica #12;El metro, los alimentos y la biotecnología Agustín López metro, los alimentos y la biotecnología #12; Agustín López MunguíaAgustín López Munguía descubriríamos

Arroyo Rodríguez, Víctor

69

LOS EFECTOS PSI DE LA \\  

Microsoft Academic Search

Resúmen.- Se obtuvieron los trazos EEG (electroencefalográficos) de 11 miembros de la doctrina del Santo Daimé, una religión shamánica brasilera de Rio de Janeiro, antes y después de ingerir un preparado alcaloide psicoactivo, la \\

Norman S. Don; Bruce E. McDonough; Charles A. Warren; Gilda Moura

70

Los Alamos National Laboratory Overview  

SciTech Connect

Mary Neu, Associate Director for Chemistry, Life and Earth Sciences at Los Alamos National Laboratory, delivers opening remarks at the "Sequencing, Finishing, Analysis in the Future" meeting in Santa Fe, NM

Neu, Mary [Los Alamos National Laboratory

2010-06-02

71

Los Alamos Neutron Scattering Center  

SciTech Connect

The Los Alamos Neutron Scattering Center (LANSCE) is a new pulsed spallation neutron source at the Los Alamos National Laboratory for neutron scattering research in the structure and dynamics of materials. LANSCE is expected to achieve the world's highest peak thermal neutron flux of 1.7 x 10/sup 16/ n/cm/sup 2/-sec at 12 Hz by 1988. The scientific potential and development plans for the facility are described.

Silver, R.N.

1986-01-01

72

Mecanismo(s) de Acción de las Auxinas y los Herbicidas Auxínicos - Parte 1- Introducción  

NSDL National Science Digital Library

Descripción:El control selectivo de malezas de hoja ancha en cultivos de cereales utilizando herbicidas auxínicos ha hecho de éstos una de las familias de herbicidas actualmente en uso más ampliamente distribuidas e importantes. Estos herbicidas fueron los primeros herbicidas orgánicos desarrollados que presentaron selectividad; es decir, capaces de matar un cierto grupo de plantas sin afectar a otros grupos (por ejemplo: matar plantas de hoja ancha pero no las de hoja angosta; en este documento se utilizará el término "gramíneas" para referirse a las plantas de hoja angosta o cereales). En esta lección se presentarán las principales características de los herbicidas auxínicos, se discutirán sus principales usos y se describirán los síntomas de daño que causan. De igual forma, se indicará la forma en que estos herbicidas matan a las plantas sensibles.

73

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

E-print Network

INSTRUCCIONES DE ACTUACI�N PARA LOS MIEMBROS DE LA DEFENSORÍA DE LOS DERECHOS UNIVERSITARIOS, RELATIVAS A LA PRESERVACI�N 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

Arroyo Rodríguez, Víctor

74

LOS RETOS DE LA GOBERNABILIDAD DEMOCRÁTICA EN MÉXICO Y AMÉRICA LATINA  

Microsoft Academic Search

Los problemas de la consolidación de la democracia en México y en América Latina ocupan un lugar central en el debate político contemporáneo. Una adecuada revisión de este problema nos conduce a analizar una serie de factores inherentes a la llamada crisis de gobernabilidad y vincularlos con lo que algunos estudiosos y autoridades a todos los niveles de gobierno, han

Samuel Hernández López

2011-01-01

75

UNIVERSITY OF CALIFORNIA Los Angeles  

E-print Network

infinite arguments about all things non-technical and technical. Omkant kept me from doing productive work, Committee Co-chair Professor Amit Sahai, Committee Co-chair University of California, Los Angeles 2009 ii). I have learnt a lot from Yuval about how not to quit working on a problem until you get the right

Rajamani, Sriram K.

76

Palace Revolt in Los Angeles?  

ERIC Educational Resources Information Center

Antonio Villaraigosa, the mayor of Los Angeles, comes alive when recalling his start in local politics--as a labor organizer agitating for reform inside decrepit and overcrowded schools. In his quest to turn around the schools, the mayor has united working-class Latino parents, civil rights leaders, and big-money Democrats to challenge union…

Fuller, Bruce

2010-01-01

77

El aprendizaje de los adultos  

Microsoft Academic Search

1. Marco en el que se encuentra el adulto Nos encontramos ante una sociedad que se caracteriza por el cambio. Sin duda, los últimos veinte años han sido la confirmación más exacta de que nuestra época es ra- dicalmente diferente de las que nos han precedido. La rapidez del cambio es, a todas luces, el rasgo más carac- terístico de

Villanueva Roa JD

2001-01-01

78

University of California Los Angeles  

E-print Network

University of California Los Angeles Lubrication Models for Particle-Laden Thin Films . . . . . . . . . . . . . . . . . . . . . . . . . . 34 2 Derivation of a Lubrication Model . . . . . . . . . . . . . . . . . . 38 3 Hyperbolic Theory for the impeding effect of the solid boundary on a single particle's settling velocity (solid), and an analytical

Soatto, Stefano

79

University of California Los Angeles  

E-print Network

University of California Los Angeles Search for Dark Matter with XENON100 and Future Ton : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 1 2 Detection of Dark Matter : : : : : : : : : : : : : : : : : : : : : : : 4 2.1 Detection Methods . . . . . . . . . . . . 31 3.3.3 Energy Resolution . . . . . . . . . . . . . . . . . . . . . . 35 iv #12;3.3.4 Dark Matter

Carter, Troy

80

Stunted Desegregation in Los Angeles.  

ERIC Educational Resources Information Center

Despite the 1978 implementation of a new desegregation plan, analysts have found that Los Angeles schools are still segregated. This is the case because the master desegregation plan has a false definition of segregated schools, a protective covenant shielding the White schools, and a focus on their pretended desegregation. (Author/GC)

Caughey, John

1979-01-01

81

Cygnus experiment at Los Alamos  

SciTech Connect

The Cygnus experiment at Los Alamos National Laboratory has been designed to study, with high angular accuracy, point sources of gamma rays of energy above 10/sup 14/ eV. The experimental detector consists of an air shower array to observe gamma-ray showers and a shielded, large-area track detector to study the muon content of the showers. In this paper we present preliminary data from the array and describe its performance. 9 refs., 3 figs.

Dingus, B.L.; Goodman, J.A.; Gupta, S.K.; Talaga, R.L.; Chang, C.Y.; Yodh, G.B.; Bolton, R.D.; Burman, R.L.; Butterfield, K.B.; Cady, R.

1986-01-01

82

Cygnus experiment at Los Alamos  

SciTech Connect

The Cygnus experiment at Los Alamos National Laboratory has been designed to study, with high angular accuracy, point sources of gamma rays above 10/sup 14/ eV. The experimental detector consists of an air shower array to observe gamma ray showers and a shielded, large area track detector to study the muon content of the showers. In this paper we present preliminary data from the array and describe its performance.

Dingus, B.L.; Goodman, J.A.; Gupta, S.K.; Talaga, R.L.; Chang, C.Y.; Yodh, G.B.; Ellsworth, R.W.; Bolton, R.D.; Burman, R.L.; Butterfield, K.B.; and others

1986-10-15

83

Factor Findings  

NSDL National Science Digital Library

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.

Piecora, Jamie

2000-01-01

84

Transfer factor.  

PubMed

Transfer factor, a natural substance of the immune system, was discovered in 1949. More than 3,000 scientific articles have established it as an effective treatment for many diseases, usually those related to the immune system. In China, more than six million people have used transfer factor as a prophylaxis for hepatitis. Information on ordering articles on transfer factor, olive leaf extract, and coconut oil is included. PMID:11366549

1998-01-01

85

Los Angeles and Its Mistress Machine  

ERIC Educational Resources Information Center

Los Angeles city has acute air pollution problems because of lack of an adequate mass transit system and the type of local industries. Air pollution in Los Angeles has affected agricultural production, vegetation, and public health in nearby areas. (PS)

Marx, Wesley

1973-01-01

86

Factor Game  

NSDL National Science Digital Library

This is an interactive applet game exercises a student's factoring ability. A student can play against the computer or against a friend on grids containing the numbers 1-30, 1-49, or 1-100. 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.

Adapted with permission from "Prime Time: Factors and Multiples," Connected Mathematics Project, G. Lappan, J. Fey, W. Fitzgerald, S. Friel and E. Phillips

2000-01-01

87

Seguridad del paciente en los estudios clínicos  

Cancer.gov

Información para pacientes, sus familiares y amigos, y el público en general, sobre cómo se protegen los derechos y la seguridad de las personas que participan en estudios clínicos. Conozca sobre el consentimiento formal, los consejos institucionales de revisión (IRB) y cómo se realiza la vigilancia continua de los estudios.

88

Los Alamos National Laboratory and technology transfer  

Microsoft Academic Search

From its beginning in 1943, Los Alamos National Laboratory (Los Alamos) has traditionally used science and technology to fine creative, but practical solutions to complex problems. Los Alamos National Laboratory is operated by the University of California, under contact to the Department of Energy. We are a Government Owned-contractor Operated (GOCO) facility, and a Federally-funded research and Development Center (FFRDC).

Bearce

1992-01-01

89

PRINCIPALES CARACTERISTIQUES PHYSIONOMIQUES FLORISTIQUES DES FORMATIONS FORESTIERES  

E-print Network

AUBREVILLE (1938). Les formations forestières s'y caractérisent par leur diversité et par leur morcellement. Photo 1. - Diversité et morcellement des formations forestières à Lamto ; au second plan, à gauche et à

Paris-Sud XI, Université de

90

Los Alamos Science: Number 16  

SciTech Connect

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.

Cooper, N.G. (ed.)

1988-01-01

91

Declaración sobre los cambios que tendrán lugar próximamente en los programas de estudios clínicos del NCI  

Cancer.gov

Los estudios clínicos son elementos fundamentales en la transformación de los descubrimientos científicos en métodos prácticos para prevenir y tratar el cáncer. En esta declaración, hacemos un resumen de los cambios que están teniendo lugar en las organizaciones que realizan estudios clínicos bajo los auspicios del NCI.

92

Factor Dazzle  

NSDL National Science Digital Library

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.

2011-01-01

93

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 DOORS TO THE CITY CLERK AND TAX & PERMIT DIVISION OFFICES, FACING NORTH. - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

94

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

95

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

96

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 MEZZANINE FLOOR SOUTHEAST COUNCIL PERSON AID'S OFFICE, FACING EAST. - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

97

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 MEZZANINE FLOOR SOUTHEAST COUNCIL PERSON AID'S OFFICE, FACING WEST. - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

98

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 MEZZANINE FLOOR SOUTHWEST CORRIDOR COUNCIL PERSON AID'S OFFICE,FACING SOUTH. - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

99

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 TWENTY-SEVENTH FLOOR WEST EXTERIOR GALLERY SOUTHEAST STAIR TO PYRAMID, FACING SOUTH - Los Angeles City Hall, 200 North Spring Street, Los Angeles, Los Angeles County, CA

100

The Epidemiology of Thyroid Cancer in Los Angeles County  

PubMed Central

More than 300 new cases of thyroid cancer are diagnosed in Los Angeles County every year. The age-adjusted annual incidence rates of this disease for all races combined are 2.4 for males and 6.1 for females. Rates for women are more than twice rates for men in each major ethnic group. Blacks of both sexes have the lowest rates; Japanese, Chinese, other Asians and Spanish-surnamed whites all have rates that are as high as or higher than rates among non-Spanish-surnamed whites. Other demographic patterns include the excess of thyroid cancer among Jewish residents of Los Angeles. There have been an increase in thyroid cancer incidence and a decline in mortality for this disease in the United States over the past several decades. Several possible explanations can be made for these trends. Also, the risk factors for thyroid cancer deserve review. ImagesFigure 1.Figure 3. PMID:532142

Preston-Martin, Susan; Menck, Herman R.

1979-01-01

101

Los Alamos PC estimating system  

SciTech Connect

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.

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

1987-01-01

102

Power Factor  

NSDL National Science Digital Library

All About Circuits is a website that â??provides a series of online textbooks covering electricity and electronics.â? Written by Tony R. Kuphaldt, the textbooks available here are wonderful resources for students, teachers, and anyone who is interested in learning more about electronics. This specific section, Power Factor, is the eleventh chapter in Volume II â??Alternating Current. A few of the topics covered in this chapter include: True, Reactive, and Apparent power; Calculating power factor, and Practical power factor correction. Diagrams and detailed descriptions of concepts are included throughout the chapter to provide users with a comprehensive lesson. Visitors to the site are also encouraged to discuss concepts and topics using the All About Circuits discussion forums (registration with the site is required to post materials).

Kuphaldt, Tony R.

103

Factors Affecting Student Choices of Instructional Methodologies.  

ERIC Educational Resources Information Center

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…

Gold, Ben K.

104

UNCLASSIFIED Submit to: Los Alamos National Laboratory, LANSCE User Office, Los Alamos, NM 87545  

E-print Network

Neutron Science Center Page 2 Proton Radiography Proposal Form PROTON RADIOGRAPHY SAFETY & EXPERIMENTAL Science Center Page 3 Proton Radiography Proposal Form PROTON RADIOGRAPHY SAFETY & EXPERIMENTAL DETAILSUNCLASSIFIED Submit to: Los Alamos National Laboratory, LANSCE User Office, Los Alamos, NM 87545

Kurien, Susan

105

ICF research at Los Alamos  

SciTech Connect

It is apparent that short wavelength lasers (<500 nm) provide efficient coupling of laser energy into ICF target compression. KrF lasers (248 nm) operate at near-optimum wavelength and provide other potential benefits to ICF target coupling (e.g., bandwidth) and applications (high wallplug efficiency and relatively low cost). However, no driver technology has yet been shown to meet all of the requirements for a high-gain ICF capability at a currently acceptable cost, and there are still significant uncertainties in the driver-target coupling and capsule hydrodynamics that must be addressed. The Los Alamos research program is designed to assess the potential of KrF lasers for ICF and to determine the feasibility of achieving high gain in the laboratory with a KrF laser driver. Major efforts in KrF laser development and technology, target fabrication and materials development, and laser-matter interaction and hydrodynamics research are discussed. 27 refs., 10 figs.

Goldstone, P.D.; Ackerhalt, J.R.; Blair, L.S.; Cartwright, D.C.; Foreman, C.A.; Hauer, A.; Hanson, D.E.; Hoffer, J.K.; Kristal, R.; Fenstermacher, C.A.

1987-01-01

106

Reconocer los derechos de los migrantes para fortalecer la integracin regional  

E-print Network

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

Richner, Heinz

107

Construccion de los flujos de caja  

Microsoft Academic Search

Este es material de curso del libro Decisiones Empresariales bajo Riesgo e Incertidumbre. El nivel del libro es basico. Se usan muy pocas matematicas y puede ser usado por gerentes. En el capitulo siete se mencionan diferentes enfoques para la valoracion de las empresas. Se calculan los flujos de caja apropiados para valorar un proyecto o empresa, derivados de los

Ignacio Velez-Pareja

2009-01-01

108

El deporte y la qumica Los peridicos ms ledos de nuestro pas son los deportivos, los programas de radio y  

E-print Network

El deporte y la química Los periódicos más leídos de nuestro país son los deportivos, los programas deportes. En definitiva, el deporte es una de las actividades que más atraen en nuestro país. #12;Pero, ¿sabes cual es el papel que la química juega en el deporte? De todo ello te podrás enterar en la próxima

Rey Juan Carlos, Universidad

109

9. NORTHSIDE OF HYPERION BOULEVARD VIADUCT OVERCROSSING OF LOS ANGELES ...  

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

9. NORTHSIDE OF HYPERION BOULEVARD VIADUCT OVERCROSSING OF LOS ANGELES RIVER. LOOKING EAST/SOUTHEAST. HYPERION BOULEVARD OVERCROSSING OF LOS ANGELES RIVER IS UPPER SECTION OF VIADUCT. GLENDALE BOULEVARD IS LOWER SECTION OF RIVER OVERCROSSING. - Glendale-Hyperion Viaduct, Spanning Golden State Freeway (I-5) & Los Angeles River at Glendale Boulevard, Los Angeles, Los Angeles County, CA

110

DEFENSORA DE LOS DERECHOS UNIVERSITARIOS. INFORME DE ACTIVIDADES  

E-print Network

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

Islas, León

111

Los XIII temporales teatrales de Puerto Montt  

E-print Network

FALL 2001 151 Los XII temporales teatrales de Puerto Montt Domingo Piga En el mes de junio de este año llegaron hasta Puerto Montt, Chile, 30 compañías de toda Latinoamérica y de Europa. Cada vez se amplía más el abanico de arte dramático que... cubre esa vasta región de Chile. El público de esa zona goza simultáneamente de todos los espectáculos, recibiendo todas las tendencias, estilos y géneros de arte dramático que en este momento exhiben los escenarios de todo el mundo. La alta calidad...

Piga, Domingo

2001-10-01

112

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.

113

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...

114

Una aproximación a los condicionantes de la elección de vivienda secundaria  

Microsoft Academic Search

Este trabajo presenta un análisis sobre la demanda de vivienda secundaria en España a nivel microeconómico. Utilizando modelos de respuesta cualitativa, logit multinomial anidado y secuencial, se pretende determinar cuáles son los factores sociodemográficos y económicos que tiene en cuenta un hogar para elegir entre disponer o no de vivienda secundaria, y para decidir su tipo de vivienda (unifamiliar o

M. C. COLOM ANDRÉS; M. C. MOLÉS MACHÍ

1999-01-01

115

Audit of the radioactive liquid waste treatment facility operations at the Los Alamos National Laboratory  

SciTech Connect

Los Alamos National Laboratory (Los Alamos) generates radioactive and liquid wastes that must be treated before being discharged to the environment. Presently, the liquid wastes are treated in the Radioactive Liquid Waste Treatment Facility (Treatment Facility), which is over 30 years old and in need of repair or replacement. However, there are various ways to satisfy the treatment need. The objective of the audit was to determine whether Los Alamos cost effectively managed its Treatment Facility operations. The audit determined that Los Alamos` treatment costs were significantly higher when compared to similar costs incurred by the private sector. This situation occurred because Los Alamos did not perform a complete analysis of privatization or prepare a {open_quotes}make-or-buy{close_quotes} plan for its treatment operations, although a {open_quotes}make-or-buy{close_quotes} plan requirement was incorporated into the contract in 1996. As a result, Los Alamos may be spending $2.15 million more than necessary each year and could needlessly spend $10.75 million over the next five years to treat its radioactive liquid waste. In addition, Los Alamos has proposed to spend $13 million for a new treatment facility that may not be needed if privatization proves to be a cost effective alternative. We recommended that the Manager, Albuquerque Operations Office (Albuquerque), (1) require Los Alamos to prepare a {open_quotes}make-or-buy{close_quotes} plan for its radioactive liquid waste treatment operations, (2) review the plan for approval, and (3) direct Los Alamos to select the most cost effective method of operations while also considering other factors such as mission support, reliability, and long-term program needs. Albuquerque concurred with the recommendations.

NONE

1997-11-19

116

Los Alamos National Laboratory's Find a Job  

NSDL National Science Digital Library

This page offers a considerable listing of positions available at the Los Alamos National Laboratory (LANL). Subheadings for employment include Regular, Limited-Term, Postdoctoral, Graduate Student, Undergraduate Student, High school Student, and Contract/ Secretarial Pool.

117

Esta Preparado? Gua para los Tejanos en  

E-print Network

pilas con pilas adicionales para durar varios días ___ Linternas de pilas con pilas adicionales ___ Agua huracanes, aún así pueden causar la muerte debido a lluvias torrenciales, inundaciones, y tornados que los

118

New Rad Lab for Los Alamos  

ScienceCinema

The topping out ceremony for a key construction stage in the Los Alamos National Laboratory's newest facility, the Radiological Laboratory Utility & Office Building. This is part of the National Nu...  

None

2010-01-08

119

Environmental surveillance at Los Alamos during 1994  

SciTech Connect

This report describes environmental monitoring activities at Los Alamos National Laboratory for 1994. Data were collected to assess external penetrating radiation, airborne emissions, liquid effluents, radioactivity of environmental materials and food stuffs, and environmental compliance.

NONE

1996-07-01

120

Clasificación de los herbicidas  

NSDL National Science Digital Library

Esta lección se enfoca en entender el sistema de clasificación en el cual están organizados los herbicidas. Terminología como clasificación, jerarquía de clasificación, ejemplos de clasificación y un breve resumen de los ocho modos de acción, se discuten en esta lección. Una vez que esto se entiende, es mucho más fácil comprender herbicidas similares y saber por qué estos pueden exhibir ciertos síntomas en malezas y cultivos. Objetivos:Entender la forma en que se clasifican los herbicidas y su importancia en el manejo de la resistencia herbicidaEntender la importancia de la clasificación de los herbicidas por modo de acción, en vez de familiasSer capaz de entender la diferencia entre modo de acción y sitio de acciónSer capaz de diferenciar entre familias de herbicidas, modos de acción, y sitios de acciónEntender nombre común, nombres comerciales y sitios de absorción

121

New Rad Lab for Los Alamos  

SciTech Connect

The topping out ceremony for a key construction stage in the Los Alamos National Laboratory's newest facility, the Radiological Laboratory Utility & Office Building. This is part of the National Nu...  

2008-08-06

122

Internship at Los Alamos National Laboratory  

SciTech Connect

Los Alamos National Laboratory (LANL) is located in Los Alamos, New Mexico. It provides support for our country's nuclear weapon stockpile as well as many other scientific research projects. I am an Undergraduate Student Intern in the Systems Design and Analysis group within the Nuclear Nonproliferation division of the Global Security directorate at LANL. I have been tasked with data analysis and modeling of particles in a fluidized bed system for the capture of carbon dioxide from power plant flue gas.

Dunham, Ryan Q. [Los Alamos National Laboratory

2012-07-11

123

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

124

Factors associated with length of stay for pediatric asthma hospitalizations.  

PubMed

Abstract Objective: Asthma is a leading cause of pediatric hospitalizations, but little is known about factors associated with length of stay (LOS) for asthma hospitalizations. The aim of this study was to identify factors associated with LOS for pediatric asthma hospitalizations. Methods: The Pediatric Health Information System (PHIS) was used to cohort patients 2-17 years old with a primary asthma diagnosis discharged from 42 PHIS hospitals in 2011. Sociodemographic, temporal and health-status factors were examined. Bivariate and generalized-estimating-equation logistic regression analyses were performed to identify factors associated with LOS, after adjusting for severity of illness (SOI). Results: In total, 25?900 children were hospitalized, with a mean LOS of 1.9 days. In bivariate analysis, mean LOS was longer (p?LOS >2 days. Conclusions: OSA, older age, obesity, CCC, winter and weekend admissions, and female gender are associated with longer LOS for pediatric asthma hospitalizations, after adjustment for SOI. The study findings suggest that interventions focused on these at-risk groups may prove most useful in reducing LOS for pediatric asthma hospitalizations. PMID:25375904

Shanley, Leticia A; Lin, Hua; Flores, Glenn

2014-11-21

125

Deformation twins in nanocrystalline Al Los Alamos National Laboratory, Los Alamos, New Mexico 87545  

E-print Network

Deformation twins in nanocrystalline Al X. Z. Liao Los Alamos National Laboratory, Los Alamos, New fault energy, no deformation twin has ever been observed in coarse-grained Al. Recent molecular dynamic MD simulations predicted the formation of deformation twins in nanocrystalline nc Al. Here, we report

Zhu, Yuntian T.

126

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

E-print Network

Facultad de Derecho A LOS ALUMNOS DE LOS PLANES 1341 Y 1342 GENERACI�N 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

Islas, León

127

Status of Monte Carlo at Los Alamos  

SciTech Connect

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.

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

1980-01-01

128

Publications of Los Alamos research 1980  

SciTech Connect

This bibliography is a compilation of unclassified publications of work done at the Los Alamos National Laboratory for 1980. Papers published in 1980 are included regardless of when they were actually written. Publications received too late for inclusion in earlier compilations have also been listed. Declassification of previously classified reports is considered to constitute publication. All classified issuances are omitted-even those papers, themselves unclassified, which were published only as part of a classified document. If a paper was pubished more than once, all places of publication are included. The bibliography includes Los Alamos National Laboratory reports, papers released as non-laboratory reports, journal articles, books, chapters of books, conference papers published either separately or as part of conference proceedings issued as books or reports, papers published in congressional hearings, theses, and US patents. Publications by Los Alamos authors that are not records of Laboratory-sponsored work are included when the Library becomes aware of them.

Salazar, C.A.; Willis, J.K. (comps.)

1981-09-01

129

Publications of Los Alamos Research, 1983  

SciTech Connect

This bibliography is a compilation of unclassified publications of work done at the Los Alamos National Laboratory for 1983. Papers published in 1982 are included regardless of when they were actually written. Publications received too late for inclusion in earlier compilations have also been listed. Declassification of previously classified reports is considered to constitute publication. All classified issuances are omitted - even those papers, themselves unclassified, which were published only as part of a classified document. If a paper was published more than once, all places of publication are included. The bibliography includes Los Alamos National Laboratory reports, papers released as non-Laboratory reports, journal articles, books, chapters of books, conference papers either published separately or as part of conference proceedings issued as books or reports, papers publishd in congressional hearings, theses, and US patents. Publications by Los Alamos authors that are not records of Laboratory-sponsored work are included when the Library becomes aware of them.

Sheridan, C.J.; McClary, W.J.; Rich, J.A.; Rodriguez, L.L. (comps.)

1984-10-01

130

Los Alamos National Laboratory and technology transfer  

SciTech Connect

From its beginning in 1943, Los Alamos National Laboratory (Los Alamos) has traditionally used science and technology to fine creative, but practical solutions to complex problems. Los Alamos National Laboratory is operated by the University of California, under contact to the Department of Energy. We are a Government Owned-contractor Operated (GOCO) facility, and a Federally-funded research and Development Center (FFRDC). At Los Alamos, our mission is to apply science and engineering capabilities to problems of national security. Recently our mission has been broadened to include technology transfer to ensure the scientific and technical solutions are available to the marketplace. We are, in staff and technical capabilities, one of the worlds largest multidisciplinary, multiprogram laboratories. We conduct extensive research in energy, nuclear safeguards and security, biomedical science, conventional defense technologies, space science, computational science, environmental protection and cleanup, materials science, and other basic sciences. Since 1980, by a series of laws and executive orders, the resources of the federal laboratories have been made increasingly available to private industry via technology transfer efforts. Los Alamos National Laboratory uses a variety of technology transfer methods including laboratory visits, cooperative research, licensing, contract research, user facility access, personnel exchanges, consulting, publications, and workshops, seminars and briefings. We also use unique approaches, such as our negotiating teams, to ensure that transfer of our developed technology takes place in an open and competitive manner. During my presentation, I will discuss the overall process and some of the mechanism that we use at Los Alamos to transfer laboratory developed technology.

Bearce, T.D.

1992-01-01

131

Los Alamos National Laboratory and technology transfer  

SciTech Connect

From its beginning in 1943, Los Alamos National Laboratory (Los Alamos) has traditionally used science and technology to fine creative, but practical solutions to complex problems. Los Alamos National Laboratory is operated by the University of California, under contact to the Department of Energy. We are a Government Owned-contractor Operated (GOCO) facility, and a Federally-funded research and Development Center (FFRDC). At Los Alamos, our mission is to apply science and engineering capabilities to problems of national security. Recently our mission has been broadened to include technology transfer to ensure the scientific and technical solutions are available to the marketplace. We are, in staff and technical capabilities, one of the worlds largest multidisciplinary, multiprogram laboratories. We conduct extensive research in energy, nuclear safeguards and security, biomedical science, conventional defense technologies, space science, computational science, environmental protection and cleanup, materials science, and other basic sciences. Since 1980, by a series of laws and executive orders, the resources of the federal laboratories have been made increasingly available to private industry via technology transfer efforts. Los Alamos National Laboratory uses a variety of technology transfer methods including laboratory visits, cooperative research, licensing, contract research, user facility access, personnel exchanges, consulting, publications, and workshops, seminars and briefings. We also use unique approaches, such as our negotiating teams, to ensure that transfer of our developed technology takes place in an open and competitive manner. During my presentation, I will discuss the overall process and some of the mechanism that we use at Los Alamos to transfer laboratory developed technology.

Bearce, T.D.

1992-05-01

132

DEFENSORA DE LOS DERECHOS UNIVERSITARIOS. INFORME DE ACTIVIDADES  

E-print Network

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

Islas, León

133

DEFENSORA DE LOS DERECHOS UNIVERSITARIOS INFORME DE ACTIVIDADES  

E-print Network

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

Islas, León

134

DEFENSORA DE LOS DERECHOS UNIVERSITARIOS INFORME DE ACTIVIDADES  

E-print Network

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

Islas, León

135

DEFENSORA DE LOS DERECHOS UNIVERSITARIOS INFORME DE ACTIVIDADES  

E-print Network

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

Islas, León

136

Lipooligosaccharides (LOS) of some Haemophilus species mimic human glycosphingolipids, and some LOS are sialylated.  

PubMed

The lipooligosaccharides (LOS) of strains of Haemophilus ducreyi, Neisseria gonorrhoeae, Neisseria meningitidis, and Neisseria lactamica contain epitopes that are antigenically and structurally similar to carbohydrates present in human glycosphingolipids. LOS from strains of Haemophilus influenzae and H. influenzae biogroup aegyptius were tested for the binding of monoclonal antibodies (MAbs) that bind to human glycosphingolipids possessing Gal beta 1-4GlcNAc (MAb 3F11) and Gal alpha 1-4Gal beta 1-4Glc (MAb anti-Pk). In solid-phase radioimmunoassays, the LOS of 18 of 19 H. influenzae type b (Hib), 8 of 19 nontypeable H. influenzae, and 10 of 20 H. influenzae biogroup aegyptius strains bound MAb anti-Pk. The LOS of 13 of 19 Hib, 10 of 16 nontypeable H. influenzae, and 2 of 18 H. influenzae biogroup aegyptius strains bound MAb 3F11. Neuraminidase treatment of the strains increased the binding of MAb 3F11 by more than twofold in 47% of the H. influenzae strains, suggesting that sialic acid occluded the LOS structure recognized by MAb 3F11. The material released from neuraminidase-treated Hib LOS was confirmed to be sialic acid by high-performance anion-exchange chromatography. A recombinant plasmid containing genes involved in Hib LOS biosynthesis directed the expression (assembly) of the 3F11 epitope in Escherichia coli. These studies demonstrate that H. influenzae and H. influenzae biogroup aegyptius express at least two LOS epitopes that are similar to those present in human glycosphingolipids. Sialic acid was present on the LOS of some H. influenzae strains and prevented the binding of MAb 3F11 to its epitope. The oligosaccharide portion of sialylated LOS may also resemble sialylated oligosaccharides present in human glycosphingolipids (gangliosides). PMID:1372291

Mandrell, R E; McLaughlin, R; Aba Kwaik, Y; Lesse, A; Yamasaki, R; Gibson, B; Spinola, S M; Apicella, M A

1992-04-01

137

Performance programming with the Los Alamos macro accelerator  

SciTech Connect

The CCC macro facility, as extended by Version 2.0 of Softool's Change and Configuration Control Environment, offers many new and powerful features. Among these are a vastly extended suite of commands, error trapping, and structured constructs. In concert with previously existing Version 1.x features (notably the very powerful symbol substitution and parameter passage facilities), these features combine to transform the macro facility from a simple command language into an extremely flexible programming language which is suitable for developing very large and complex applications. This paper presents the results of a performance analysis of the CCC macro facility conducted at the Los Alamos National Laboratory Weapons Neutron Research Facility. The goal of this work was to identify and evaluate major factors that can contribute to the degradation of performance of the CCC macro facility, and to develop strategies for countering their effects. In particular, we report on the Los Alamos Macro Accelerator, which can produce dramatic increases in execution speed for many applications.

Cort, G.

1985-01-01

138

Cleanup at Los Alamos National Laboratory - the challenges - 9493  

SciTech Connect

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.

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

139

Los soles truncos en el Teatro Tapia  

E-print Network

4 LATIN AMERICAN THEATRE REVIEW Los soles truncos en el Teatro Tapia Del 17 de marzo al 3 de abril de 1977, el público de San Juan tenía la oportunidad de presenciar una excelente producción de Los soles truncos de Rene Marqués. M. Fernández... Cortines presentó la obra en el teatro para el que Marqués la había escrito. El ambiente de la obra se ve reflejado en el teatro mismo, ya que personifica la elegancia y el refinamiento de fin de siglo añorados por las protagonistas de la obra. El...

Frankenthaler, Marilyn R.

1977-10-01

140

SEDs at Los Alamos: A Personal Memoir  

NASA Astrophysics Data System (ADS)

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.

Bederson, Benjamin

2001-03-01

141

Los Alamos Explosives Performance Key to Stockpile Stewardship  

ScienceCinema

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.

Dattelbaum, Dana

2015-01-05

142

Los Alamos Explosives Performance Key to Stockpile Stewardship  

SciTech Connect

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.

Dattelbaum, Dana

2014-11-03

143

Nunca ha sido fcil distinguir los hechos de la informacin falsa sobre los alimentos; las estrategias de mercadeo, las frases  

E-print Network

Nunca ha sido fácil distinguir los hechos de la información falsa sobre los alimentos; las unos mitos comunes y persistentes respecto a los alimentos: Mito: Las frutas y verduras frescas son más alimentos congelados y enlata- dos son tan nutritivos como los frescos. De hecho, ya que el licopeno es

Burke, Peter

144

Int'l Airport Los Angeles  

E-print Network

(BUR) SAN DIEGO 5 134 210 Orange County/ John Wayne Airport (SNA) UC Irvine UC Irvine Medical Center UC IRVINE SANTA ANA FW Y To Laguna Beach To San Diego To I-5 To Los Angeles To Long Beach GARDEN Bison Ave. Bonita Canyon Dr. New portCoastDr. UC Irvine Medical Center ORANGEFWY COSTAMESAFWY Chapman

Rose, Michael R.

145

Int'l Airport Los Angeles  

E-print Network

) SAN DIEGO 5 134 210 Orange County/ John Wayne Airport (SNA) UC Irvine UCI Medical Center SAN FRANCISCO LOS ANGELES LAS VEGAS CANADA MEXICO UNITED STATES IRVINE SAN DIEGO SACRAMENTO LOCATING UC IRVINE SANTA) Bison Ave. Bonita Canyon R d. New portCoastDr. UC Irvine UCI Medical Center ORANGEFWY COSTAMESAFWY

George, Steven C.

146

Retrofit LA (County of Los Angeles)  

E-print Network

centers, community college districts, local economic development programs, Build It Green, and others: refine marketing and outreach strategies; develop workshops for directing stakeholders and contractors an innovative marketing and outreach strategy to motivate property owners to participate. The County of Los

147

Los Alamos waste drum shufflers users manual  

SciTech Connect

This user manual describes the Los Alamos waste drum shufflers. The primary purpose of the instruments is to assay the mass of {sup 235}U (or other fissile materials) in drums of assorted waste. It can perform passive assays for isotopes that spontaneously emit neutrons or active assays using the shuffler technique as described on this manual.

Rinard, P.M.; Adams, E.L.; Painter, J.

1993-08-24

148

MATERIAL TRANSFER AGREEMENT LOS ALAMOS NATIONAL LABORATORY  

E-print Network

with the U.S. Department of Energy, National Nuclear Security Administration. The PROVIDER has developed to the other Party. Termination does not relieve either Party of any obligation or liability accrued prior designated by the U.S. Department of Energy/National Nuclear Security Administration for operation of the Los

149

Image & illusion : Los Angeles Film Center  

E-print Network

To think about Los Angeles is like sitting in front of the television and switching the channels while keeping track of an the shows. It is a complex place: it has many divergent styles and images trying to make up a whole. ...

Swett, Karen

1986-01-01

150

Los Compadres: ESL Student Mentor Program.  

ERIC Educational Resources Information Center

Los Compadres is a program that pairs advanced high school Spanish students with elementary English-as-a-Second-Language native Spanish speakers. Teachers prepare lessons based upon authentic literature, written in English and Spanish, which include vocabulary review and literature response activities. The high school students prepare for the…

Coryell, Joellen; Gonzales, Edna; Claudia, Cary; Cisneros, Joe

151

Los Alamos National Laboratory August 2010  

E-print Network

Rd. Knoxville, TN 37932 865-769-8888 B&B Environmental Safety, Inc. 4200 West Jemez Road Los Alamos. 201 Camino de la Merced Taos, NM 87571 575-758-4175 Burgos Group, LLC 4700 Lincoln Road NE Albuquerque-267 -t613 Cavanagh Services Group, Inc. 261 8.300 South, Suite 200 Salt Lake City, UT 841I I 80t-532

152

Purdue Lafayette 21 Los Angeles Santa Monica  

E-print Network

;New York #12;#12;MemoryStick Jefferson #12;Senate Staff Only Bush caused 911 #12;Bush Abortion Kerry Chinatown $200 $100 #12;Philadelphia F*ck 12 27 Philadelphia New York New York Washington Philadelphia Boston New York 40th Street, 8th Ave New York New York Cab #12;New York New York Los Angeles New York $30

Treuille, Adrien

153

Chemistry and physiology of Los Angeles smog  

Microsoft Academic Search

Air pollution in the Los Angeles area is characterized by a decrease in visibility, crop damage, eye irritation, objectionable odor, and rubber deterioration. These effects are attributed to the release of large quantities of hydrocarbons and nitrogen oxides to the atmosphere. The photochemical action of nitrogen oxides oxidizes the hydrocarbons and thereby forms ozone, responsible for rubber cracking. Under experimental

A. J. Haagen-Smit

1952-01-01

154

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...

155

Sound Change and Mobility in Los Angeles  

ERIC Educational Resources Information Center

Deals with the shift of the low-back vowel as in 'caught' to a low-central vowel as in 'cot' thereby merging such pairs as caught/cot, dawn/Don, and stalk/stock. The causes and the sociolinguistic implications of this shift are discussed. The majority of the informants were from West Los Angeles. (TL)

Johnson, Lawrence

1975-01-01

156

Los Alamos Fires From Landsat 7  

NASA Technical Reports Server (NTRS)

On May 9, 2000, the Landsat 7 satellite acquired an image of the area around Los Alamos, New Mexico. The Landsat 7 satellite acquired this image from 427 miles in space through its sensor called the Enhanced Thematic Mapper Plus (ETM+). Evident within the imagery is a view of the ongoing Cerro Grande fire near the town of Los Alamos and the Los Alamos National Laboratory. Combining the high-resolution (30 meters per pixel in this scene) imaging capacity of ETM+ with its multi-spectral capabilities allows scientists to penetrate the smoke plume and see the structure of the fire on the surface. Notice the high-level of detail in the infrared image (bottom), in which burn scars are clearly distinguished from the hotter smoldering and flaming parts of the fire. Within this image pair several features are clearly visible, including the Cerro Grande fire and smoke plume, the town of Los Alamos, the Los Alamos National Laboratory and associated property, and Cerro Grande peak. Combining ETM+ channels 7, 4, and 2 (one visible and two infrared channels) results in a false color image where vegetation appears as bright to dark green (bottom image). Forested areas are generally dark green while herbaceous vegetation is light green. Rangeland or more open areas appear pink to light purple. Areas with extensive pavement or urban development appear light blue or white to purple. Less densely-developed residential areas appear light green and golf courses are very bright green. The areas recently burned appear black. Dark red to bright red patches, or linear features within the burned area, are the hottest and possibly actively burning areas of the fire. The fire is spreading downslope and the front of the fire is readily detectable about 2 kilometers to the west and south of Los Alamos. Combining ETM+ channels 3, 2, and 1 provides a true-color image of the greater Los Alamos region (top image). Vegetation is generally dark to medium green. Forested areas are very dark green while herbaceous vegetation is medium green. Rangeland or more open areas appear as tan or light brown. Areas with extensive pavement or urban development appear white to light green. Less densely-developed residential areas appear medium green and golf courses are medium green. The fires and areas recently burned are obscured by smoke plumes which are white to light blue. Landsat 7 data are archived and available from EDC. Image by Rob Simmon, Earth Observatory, NASA Goddard Space Flight Center. Data courtesy Randy McKinley, EROS Data Center (EDC)

2002-01-01

157

El mercado colombiano de la vivienda: factores socioeconómicos y financieros determinantes  

Microsoft Academic Search

(Disponible en idioma inglés únicamente) Este documento proporciona una panorámica general del sistema de vivienda de Colombia, analiza sus factores socioeconómicos y financieros determinantes, y presenta recomendaciones tendientes a mejorar la recopilación de datos básicos sobre el sector de la construcción, las condiciones socioeconómicas de los hogares y los mercados hipotecarios. También se calcula un modelo econométrico simultáneo del mercado

Sergio Clavijo; Michel Janna; Santiago Munoz

2005-01-01

158

Cmo comprar alimentos de manera segura Preste atencin a las fechas estampadas en los paquetes de los alimentos. La mayora de los  

E-print Network

Cómo comprar alimentos de manera segura Preste atención a las fechas estampadas en los paquetes de los alimentos. La mayoría de los alimentos tienen fechas estampadas en el paquete que indican "fecha que se debe vender o consumir un alimento para obtener la mejor calidad. A excepción de las frutas y

159

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

SciTech Connect

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.

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

1997-06-01

160

Power Factor Compensation (PFC) Power Factor Compensation  

E-print Network

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

Knobloch,Jürgen

161

Smart instrumentation development at Los Alamos  

SciTech Connect

For several years Los Alamos has incorporated microprocessors into instruments to expand the capability of portable survey type equipment. Beginning with portable pulse height analyzers, the developments have expanded to small dedicated instruments which handle the measurement and interpretation of various radiation fields. So far, instruments to measure gamma rays, neutrons, and beta particles have been produced. The computer capability built into these instruments provides significant computational power into the instruments. Capability unheard of a few years ago in small portable instruments is routine today. Large computer-based laboratory measurement systems which required much space and electrical power can now be incorporated in a portable hand-held instrument. The microprocessor developments at Los Alamos are now restricted to radiation monitoring equipment but can be expanded to chemical and biological applications as well. Applications for radiation monitoring equipment and others are discussed.

Erkkila, B.

1984-01-01

162

Los Angeles fires seen from space  

NASA Astrophysics Data System (ADS)

Hundreds of fires were set in Los Angeles following the verdict of Rodney G. King versus the Los Angeles Police Department on April 29, 1992. These fires were of sufficient intensity and extent to be imaged at 1-km resolution by the Advanced Very High Resolution Radiometer (AVHRR) aboard the polar-orbiting satellites operated by the National Oceanic and Atmospheric Administration (see VanWoert et al. [1992] for an overview of the characteristics of the AVHRR instrument). Here we present a thermal infrared image taken the first night of the riots, compare it with an image taken several years earlier but typical of this area, and discuss the relationships with the land cover observed in a 20-m resolution image from the French satellite SPOT (Systeme Probatoire pour l'Observation de la Terre).

Dousset, Bénédicte; Flament, Pierre; Bernstein, Robert

163

Nuclear Forensics at Los Alamos National Laboratory  

SciTech Connect

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).

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

164

Water Supply at Los Alamos during 1997  

SciTech Connect

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.

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

1998-12-01

165

Facilitating LOS Debriefings: A Training Manual  

NASA Technical Reports Server (NTRS)

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.

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

1997-01-01

166

INTRODUCCIN El comportamiento territorial en los animales  

E-print Network

-AZOR PERDICERA (HIERAAETUS FASCIATUS) Y DEL ÁGUILA REAL (AQUILA CHRYSAETOS) EN LA REGI�N 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

Carrete, Martina

167

Wolf Fire West of Los Angeles  

NASA Technical Reports Server (NTRS)

This photograph taken from the International Space Station on June 7, 2002, shows the Copper Fire burning in the hills outside Los Angeles. Astronauts use a variety of lenses and look angles as their orbits pass over wildfires to document the long-distance movements of smoke from the fires as well as details of the burning areas. This image clearly illustrates the difficult, rugged terrain that firefighters must face when fighting these wildland fires.

2002-01-01

168

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.

169

Primer Festival de Teatro, Los Angeles  

E-print Network

Díaz, bajo la dirección de Susana Castillo y Charles Baldazua; The Company Forgives A Moment of Madness, del dramaturgo venezolano Rodolfo Santana, dirigida por Margarita Galbán; Do Not Negotiate Mr. President, del cubano Leopoldo Hernández, bajo la... dirección de Margarita Galbán; y María Cristina me quiere gobernar, del venezolano José Gabriel Nuñez, con la dirección de Armando Gota, director invitado de Venezuela. El próximo Festival tendrá lugar los meses de abril y mayo de 1984, contando con la...

Editors

1983-10-01

170

Los Alamos Team Demonstrates Bottle Scanner Technology  

SciTech Connect

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.

Espy, Michelle; Schultz, Larry

2014-05-06

171

The Los Alamos National Laboratories Research Quarterly  

NSDL National Science Digital Library

The Research Quarterly is published "to communicate the Laboratory's achievements and how they benefit our neighbors, our nation, and the world." Highlights of the Winter 2003 issue include reports on Improving Meteor Impact Predictions, Extending the Life of Nuclear Weapons, Modeling Bone Remodeling, Proton Radiography, Simulation Science, as well as a spotlight on two Los Alamos researchers. Those interested will find an interesting collection of timely research and information from one of the countries top science facilities that's certainly worth reviewing.

2003-01-01

172

Los Alamos Novel Rocket Design Flight Tested  

SciTech Connect

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.

Tappan, Bryce

2014-10-23

173

Misterioso navegante de los ocanos tropicales  

E-print Network

entre tiburones y la novela Tintorera. Ramón Bravo Foto: Manuel Lazcano Un agradecimiento especial especie. En especial se lo dedicamos a "Los Gordos" Manuel y Cayetano Espinoza Álvarez, por apoyarnos en información que existe acerca de estos animales sería aún más escasa. Don Manuel y Cayetano pescando para el

Klimley, A. Peter

174

Los Alamos Novel Rocket Design Flight Tested  

ScienceCinema

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.

Tappan, Bryce

2015-01-05

175

Amphibians and Reptiles of Los Alamos County  

SciTech Connect

Recent studies have shown that amphibians and reptiles are good indicators of environmental health. They live in terrestrial and aquatic environments and are often the first animals to be affected by environmental change. This publication provides baseline information about amphibians and reptiles that are present on the Pajarito Plateau. Ten years of data collection and observations by researchers at Los Alamos National Laboratory, the University of New Mexico, the New Mexico Department of Game and Fish, and hobbyists are represented.

Teralene S. Foxx; Timothy K. Haarmann; David C. Keller

1999-10-01

176

Los Alamos Team Demonstrates Bottle Scanner Technology  

ScienceCinema

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.

Espy, Michelle; Schultz, Larry

2014-06-02

177

Los Alamos National Laboratory Building Cost Index  

SciTech Connect

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.

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

1983-01-01

178

Los Alamos National Laboratory building cost index  

SciTech Connect

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.

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

1982-10-01

179

Critical partnerships: Los Alamos, universities, and industry  

SciTech Connect

Los Alamos National Laboratory, situated 35 miles northwest of Santa Fe, NM, is one of the Department of Energy`s three Defense Programs laboratories. It encompasses 43 square miles, employees approximately 10,000 people, and has a budget of approximately $1.1B in FY97. Los Alamos has a strong post-cold war mission, that of reducing the nuclear danger. But even with that key role in maintaining the nation`s security, Los Alamos views partnerships with universities and industry as critical to its future well being. Why is that? As the federal budget for R&D comes under continued scrutiny and certain reduction, we believe that the triad of science and technology contributors to the national system of R&D must rely on and leverage each others capabilities. For us this means that we will rely on these partners to help us in 5 key ways: We expect that partnerships will help us maintain and enhance our core competencies. In doing so, we will be able to attract the best scientists and engineers. To keep on the cutting edge of research and development, we have found that partnerships maintain the excellence of staff through new and exciting challenges. Additionally, we find that from our university and corporate partners we often learn and incorporate {open_quotes}best practices{close_quotes} in organizational management and operations. Finally, we believe that a strong national system of R&D will ensure and enhance our ability to generate revenues.

Berger, C.L.

1997-04-01

180

Lessons learned from occurrences involving procedures at Los Alamos National Laboratory in 1994  

SciTech Connect

This study used the Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS) data to investigate occurrences reported during one year at Los Alamos National Laboratory (LANL). ORPS provides a centralized database and computerized support for the Collection, distribution, updating, analysis, and validation of information in occurrence reports about abnormal events related to facility operation. Human factors causes for occurrences are not always defined in ORPS. Content analysis of narrative data revealed that 33% of all LANL 1994 adverse operational events have human factors causes related to procedures. Procedure-caused occurrences that resulted in injury to workers, damage to facilities or equipment, or a near-miss are analyzed.

Frostenson, C.K.

1995-07-01

181

Learning with matrix factorizations  

E-print Network

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, ...

Srebro, Nathan, 1974-

2004-01-01

182

Sparse matrix inverse factors  

SciTech Connect

The inverses of matrix factors lend themselves to parallel operations in the direct solution phase of sparse matrix solutions. These inverse factors, given suitable ordering of the equations, are themselves sparse, if less so than the original factors. Partitioning reduces the build-up of nonzero elements in the inverse factors. All of the multiplications required for repeat solutions may be performed in parallel using the inverse factors, with only as many serial steps as twice the number of factors.

Enns, M.K. (Electrocon International, Inc., Ann Arbor, MI (USA)); Tinney, W.F.; Alvarado, F.L. (Wisconsin Univ., Madison, WI (USA))

1990-05-01

183

Los Alamos National Laboratory names Jeffrey Mousseau Associate Director of  

E-print Network

, soil and other items contaminated with radioactive material, mostly plutonium. Transuranic elements- 1 - Los Alamos National Laboratory names Jeffrey Mousseau Associate Director of Environmental Programs September 18, 2012 Will Oversee Transuranic Waste Disposal and Environmental Cleanup Projects LOS

184

Transformación de los programas de estudios clínicos del NCI  

Cancer.gov

Información sobre los programas e iniciativas del NCI que patrocinan, realizan, crean o apoyan estudios clínicos, entre los que se incluyen la Red Nacional de Estudios Clínicos (NCTN) y el Programa de Investigación Oncológica Comunitaria (NCORP) del NCI.

185

Los biocombustibles y el futuro - Duration: 1:24.  

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...

186

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

187

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

188

DEFENSORA DE LOS DERECHOS UNIVERSITARIOS INFORME DE ACTIVIDADES  

E-print Network

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

Islas, León

189

DEPENDENCIA DE LOS ESTEROIDES ANABOLIZANTES-ANDROGENIZANTES Y MECANISMOS SUBYACENTES  

Microsoft Academic Search

Los estudios en humanos sugieren que, en algunos casos, el abuso de esteroides anabolizantes-androgenizantes (EAAs) puede desencadenar un síndrome de dependencia de sustancias psicoactivas según los criterios del DSM-IV y semejante al de otras sustan- cias de abuso tanto en la sintomatología como en los sistemas de neurotransmisión im- plicados. En su desarrollo parecen intervenir mecanismos de refuerzo secundario positi-

M. Teresa Arnedo; Sonia Martínez-Sanchís; Alicia Salvador

190

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. To that end, Los Alamos scientists and collaborators from The University of Guelph in Canada published

191

Ajuste estructural y política agrícola en el Brasil. Experiencias de los ochenta y perspectivas para los noventa  

Microsoft Academic Search

Introducción. A fines de la década de los setenta la economía brasileña sufrió un creciente deterioro de su situación externa, lo que rompió el equilibrio del proceso de crecimiento económico de los años setenta, conocido como \\

Fernando DallAcqua

1992-01-01

192

Patient’s Factors at Entering Hospice Affecting Length of Survival in a Hospice Center  

PubMed Central

Purpose In order to provide effective hospice care, adequate length of survival (LOS) in hospice is necessary. However the reported average LOS is much shorter. Analysis of LOS in hospice has not been reported from Korea. We evaluated the duration of LOS and the factors associated with LOS at our hospice center. Materials and Methods We retrospectively examined 446 patients who were admitted to our hospice unit between January 2010 and December 2012. We performed univariate and multivariate analysis for analysis of factors associated with LOS. Results The median LOS was 9.5 days (range, 1 to 186 days). The LOS of 389 patients (86.8%) was< 1 month. At the time of admission to hospice, 112 patients (25.2%) were completely bedridden, 110 patients (24.8%) had mouth care only without intake, and 134 patients (30.1%) had decreased consciousness, from confusion to coma. The median time interval between the day of the last anticancer treatment and the day of hospice admission was 75 days. By analysis of the results of multivariate analysis, decreased intake and laboratory results showing increased total white blood cell (WBC), decreased platelet count, increased serum creatinine, increased aspartate aminotransferase (AST), alanine aminotransferase (ALT), and lactate dehydrogenase (LDH) level were poor prognostic factors for survival in hospice. Conclusion Before hospice admission, careful evaluation of the patient’s performance, particularly the oral intake, and total WBC, platelet, creatinine, AST, ALT, and LDH level is essential, because these were strong predictors of shorter LOS. In the future, conduct of prospective controlled studies is warranted in order to confirm the relationship between potential prognostic factors and LOS in hospice. PMID:25345463

Lee, Guk Jin; Ahn, Hye Shin; Go, Se Eun; Kim, Ji Hyun; Seo, Min Wu; Kang, Seung Hun; Yang, Yeo Ree; Lee, Mi Yeong; Lee, Ku Ock; Chun, Sang Hoon; Jin, Jong Youl

2015-01-01

193

Space Radar Image of Los Angeles, California  

NASA Technical Reports Server (NTRS)

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.

1994-01-01

194

Radionuclide concentrations in pinto beans, sweet corn, and zucchini squash grown in Los Alamos Canyon at Los Alamos National Laboratory  

SciTech Connect

Pinto beans, sweet corn, and zucchini squash (Cucurbita pepo var. black beauty) were grown in a randomized complete-block field/pot experiment at a site that contained the highest observed levels of surface gross gamma radioactivity within Los Alamos Canyon (LAC) at Los Alamos National Laboratory. Soils as well as washed edible and nonedible crop tissues were analyzed for various radionuclides and heavy metals . Most radionuclides, with the exception of {sup 3}H and {sup tot}U, in soil from LAC were detected in significantly higher concentrations (p <0.01) than in soil collected from regional background (RBG) locations. Similarly, most radionuclides in edible crop portions of beans, squash, and corn were detected in significantly higher (p <0.01 and 0.05) concentrations than RBG. Most soil-to-plant concentration ratios for radionuclides in edible and nonedible crop tissues from LAC were within the default values given by the Nuclear Regulatory Commission and Environmental Protection Agency. All heavy metals in soils, as well as edible and nonedible crop tissues grown in soils from LAC, were within RBG concentrations. Overall, the total maximum net positive committed effective dose equivalent (CEDE)--the CEDE plus two sigma for each radioisotope minus background and then all positive doses summed--to a hypothetical 50-year resident that ingested 160 kg of beans, corn, and squash in equal proportions, was 74 mrem y{sup -1}. This dose was below the International Commission on Radiological Protection permissible dose limit (PDL) of 100 mrem y{sup -1} from all pathways; however, the addition of other internal and external exposure route factors may increase the overall dose over the PDL. Also, the risk of an excess cancer fatality, based on 74 mrem y{sup -1}, was 3.7 x 10{sup -5} (37 in a million), which is above the Environmental Protection Agency`s (acceptable) guideline of one in a million. 31 refs., 15 tabs.

Fresquez, P.R.; Mullen, M.A.; Naranjo, L. Jr.; Armstrong, D.R.

1997-05-01

195

Los Alamos Before and After the Fire  

NASA Technical Reports Server (NTRS)

On May 4, 2000, a prescribed fire was set at Bandelier National Monument, New Mexico, to clear brush and dead and dying undergrowth to prevent a larger, subsequent wildfire. Unfortunately, due to high winds and extremely dry conditions in the surrounding area, the prescribed fire quickly raged out of control and, by May 10, the blaze had spread into the nearby town of Los Alamos. In all, more than 20,000 people were evacuated from their homes and more than 200 houses were destroyed as the flames consumed about 48,000 acres in and around the Los Alamos area. The pair of images above were acquired by the Enhanced Thematic Mapper Plus (ETM+) sensor, flying aboard NASA's Landsat 7 satellite, shortly before the Los Alamos fire (top image, acquired April 14) and shortly after the fire was extinguished (lower image, June 17). The images reveal the extent of the damage caused by the fire. Combining ETM+ channels 7, 4, and 2 (one visible and two infrared channels) results in a false-color image where vegetation appears as bright to dark green. Forested areas are generally dark green while herbaceous vegetation is light green. Rangeland or more open areas appear pink to light purple. Areas with extensive pavement or urban development appear light blue or white to purple. Less densely-developed residential areas appear light green and golf courses are very bright green. In the lower image, the areas recently burned appear bright red. Landsat 7 data courtesy United States Geological Survey EROS DataCenter. Images by Robert Simmon, NASA GSFC.

2002-01-01

196

Experience with confirmation measurement at Los Alamos  

SciTech Connect

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.

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

1985-01-01

197

Los Angeles Examiner Collection, 1920-1961  

NSDL National Science Digital Library

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.

2013-01-01

198

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.

199

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.

200

Los Alamos National Laboratory Waste Management Program  

SciTech Connect

Los Alamos National Laboratory's (LANL) waste management program is responsible for disposition of waste generated by many of the LANL programs and operations. LANL generates liquid and solid waste that can include radioactive, hazardous, and other constituents. Where practical, LANL hazardous and mixed wastes are disposed through commercial vendors; low-level radioactive waste (LLW) and radioactive asbestos-contaminated waste are disposed on site at LANL's Area G disposal cells, transuranic (TRU) waste is disposed at the Waste Isolation Pilot Plant (WIPP), and high-activity mixed wastes are disposed at the Nevada Test Site (NTS) after treatment by commercial vendors. An on-site radioactive liquid waste treatment facility (RLWTF) removes the radioactive constituents from liquid wastes and treated water is released through an NPDES permitted outfall. LANL has a very successful waste minimization program. Routine hazardous waste generation has been reduced over 90% since 1993. LANL has a DOE Order 450.1-compliant environmental management system (EMS) that is ISO 14001 certified; waste minimization is integral to setting annual EMS improvement objectives. Looking forward, under the new LANL management and operating contractor, Los Alamos National Security (LANS) LLC, a Zero Liquid Discharge initiative is being planned that should eliminate flow to the RLWTF NPDES-permitted outfall. The new contractor is also taking action to reduce the number of permitted waste storage areas, to charge generating programs directly for the cost to disposition waste, and to simplify/streamline the waste system. (authors)

Lopez-Escobedo, G.M.; Hargis, K.M.; Douglass, C.R. [Los Alamos National Laboratory, NM (United States)

2007-07-01

201

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

202

Case Study: Los Fresnos High School, Los Fresnos, Texas. High Schools That Work.  

ERIC Educational Resources Information Center

Most of the predominantly Hispanic students at Los Fresnos High School (LFHS), Texas, speak both Spanish and English, qualify for reduced-price or free lunches, and are considered at-risk. LFHS students historically scored poorly on the California Achievement Test and Texas Assessment of Academic Skill, and many dropped out of school when they…

Southern Regional Education Board, Atlanta, GA.

203

Los Impuestos Especiales y la Financiación autonómica. Análisis de los efectos sobre la equidad  

Microsoft Academic Search

RESUMEN El objeto de este trabajo es realizar una valoración de los Impuestos Especiales como instrumento financiero de las Comunidades Autónomas de régimen común En primer lugar, se analizan las razones que podrían justificar su utilización. A continuación, se ofrece una síntesis de la utilización actual en la financiación de las Comunidades Forales, Canarias y el resto de las Comunidades

Laura de Pablos Escobar; Mónica Gómez de la Torre del Arco

2003-01-01

204

"Los Ninos y los Libros": Noteworthy Books in Spanish for the Very Young.  

ERIC Educational Resources Information Center

Reviews 15 children's books in Spanish. Titles reviewed include: "Perro y gato [Dog and Cat]" (Ricardo Alcantara); "Baldomero va a la escuela [Baldomero goes to School]" (Alain Broutin); "Duerme bien, pequeno oso [Sleep well, Little Bear]" (Quint Buchholz); "El mas bonito de todos los regales del mundo [The Most Beautiful Gift in the World]…

Schon, Isabel

2001-01-01

205

Growth factors in bone  

Microsoft Academic Search

Summary.  \\u000a Bone contains several growth factors, including bone morphogenetic proteins (BMPs), transforming growth factor beta (TGF-?),\\u000a insulin-like growth factors I and II (IGF-I and IGF-II), platelet derived growth factor (PDGF) and basic and acidic fibroblast\\u000a growth factor (bFGF and aFGF). Spatial and temporal variations in the expression and secretion of the various growth factors\\u000a have been demonstrated in osteoblastic cultures

E. Solheim

1998-01-01

206

World's Largest Gold Crystal Studied at Los Alamos  

SciTech Connect

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.

Vogel, Sven; Nakotte, Heinz

2014-04-03

207

World's Largest Gold Crystal Studied at Los Alamos  

ScienceCinema

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.

Vogel, Sven; Nakotte, Heinz

2015-01-07

208

Present Dogs, Absent Witches: Illustration and Interpretation of ‘El coloquio de los perros’  

E-print Network

Aunque los grabados que acompañan a los textos impresos de las Novelas ejemplares suelen representar los desenlaces de las novelas, las imágenes de “El coloquio de los perros” rompen con esta tendencia visual. Este trabajo ...

Manning, Patricia W.

2008-01-01

209

An overview of airborne radioactive emissions at Los Alamos National Laboratory  

SciTech Connect

Strict control is essential over any emissions of radioactivity in the ventilation exhaust from facilities where radioactive materials may become airborne. At Los Alamos National Laboratory there are 87 stacks exhausting ventilation air to the environment from operations with a potential for radioactive emissions. These stacks cover the diverse operations at all Laboratory facilities where radioactive materials are handled and require continuous sampling/monitoring to detect levels of contamination. An overview is presented of the operations, associated ventilation exhaust cleanup systems, and analysis of the emissions. In keeping with the as-low-as-reasonably-achievable concept, emissions of radionuclides are reduced whenever practicable. A specific example describing the reduction of emissions from the linear accelerator beam stop area at the Los Alamos Meson Physics Facility during 1985 by a factor of 8 over previous emissions is presented.

Guevara, F.A.; Dvorak, R.F.

1987-01-01

210

Erosion of Earth Covers Used in Shallow Land Burial at Los Alamos, New Mexico1  

E-print Network

The Los Alamos National Laboratory and the USDA-ARS ex amined soil erosion and water balance relationships for a trench cap used for the shallow land burial of low-level radioactive wastes at Los Alamos, NM. Eight 3.05 by 10.7 m plots were installed with bare soil, tilled, and vegetated surface treatments on a IS by 63 m trench cap constructed from soil and crushed tuff layers. A rotating boom rain simulator was used to estimate the soil erodibility and cover-manage ment factors or the Universal Soil Loss Equation (USLE) for this trench cap and for two undisturbed plots with natural vegetative cover. The implications or the results of this study are discussed relative to the management or infiltration and erosion processes at waste burial sites and compared with similar USDA research per formed throughout the USA.

J W. Nyhan; G. L. Depoorter; B. J. Drennon; J. R. Simanton; G. R. Foster; W. Nyhan; G. L. Depoorter; B. J. Drennon; J. R. Smanton; G. R. Foster

211

Prediction and synthesis efforts at Los Alamos  

SciTech Connect

One important aspect of an organic synthesis effort related to the development of new explosives, is the ability to estimate the properties of proposed molecules. In most cases, the detonation velocity and C-J pressure are estimated for the proposed explosive using any number of existing predictive methods. Novel explosives are being proposed, at Los Alamos and elsewhere, that are qualitatively different in their molecular makeup than most of the existing conventional ones. These explosives include, highly strained cage molecules, heterocyclic molecules, low hydrogen-containing molecules, and high nitrogen-containing molecules. This paper describes alternate ways of viewing detonation velocities and a new method for estimating detonation velocity of a proposed compound. 10 refs., 2 figs., 4 tabs.

Stine, J.R.; Coburn, M.D.

1988-01-01

212

Natural History Museum of Los Angeles County  

NSDL National Science Digital Library

The Natural History Museum of Los Angeles County is actually three museums: the Natural History Museum, the Page Museum at the La Brea Tar Pits, and the William S. Hart Museum. Visitors can learn about the ongoing work and research projects conducted by the dedicated staff members who work at these properties. A great place to start is the "Explore Exhibits" area. This section contains over two dozen areas, such as "Age of Mammals," "Spider Pavilion," and "California History." Moving on, the "Research Collections" contains information about their various research enterprises, along with free downloadable teaching materials that deal with entomology, anthropology, and mineral sciences. Finally, the site also contains information about visiting the museums and their online store.

2012-06-22

213

Information about Practicums at Los Alamos  

SciTech Connect

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.

Bradley, Paul A. [Los Alamos National Laboratory

2012-07-24

214

High-performance computing at Los Alamos  

SciTech Connect

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.

Ewald, R.H.

1983-01-01

215

Environmental surveillance at Los Alamos during 1992  

SciTech Connect

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.

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

1994-07-01

216

Performance of the Los Alamos expanding telescope  

SciTech Connect

An expanding telescope can produce a very low divergence particle beam, provided that the beam optics have sufficient quality in order not to introduce large aberrations. Even as late as two years ago there were no theoretical beamline codes, and little experimental work that could describe the third-order aberrations introduced by an expanding telescope. A project was undertaken at Los Alamos National Laboratory to perform these calculations, and to build a telescope to confirm the predictions. It was installed at Argonne National Laboratory during the summer of 1987 and tested in a 50 MeV H/sup /-// beam. The telescope consisted of a singlet eyepiece and triplet objective lens with a twenty times magnification. It performed to the design specifications of twenty-five micro-radians beam divergence with a parallel beam focus. The measured geometric aberrations were found to be in agreement with the computer calculations.

Dombeck, T.W.

1988-01-01

217

Security Lapses Continue at Los Alamos  

NSDL National Science Digital Library

Despite Energy Secretary Bill Richardson's previous assertions that security at the Los Alamos National Laboratory had been improved, the Laboratory revealed on June 12 that two hard drives which contain "encyclopedic" amounts of information about Russian and Chinese nuclear weapon design, as well as weapons of American allies, had been missing since May 7, the day before the lab was evacuated because of the wildfire. The Lab Director and Energy Department officials, however, were not informed until May 31. Despite the sensitivity of the information on the drives, they were not classified at the highest level, and the vault where they were stored is accessible to apparently dozens of employees, none of whom are required to log in or log out. Without these records, there is no way of knowing whether the drives went missing the day the loss was discovered or at some point in the previous weeks. Richardson, who failed to appear at a Senate Intelligence Committee hearing on Wednesday, has placed six laboratory managers, including the head of the nuclear weapons programs, on paid leave. He also asked two highly respected former members of Congress, Howard Baker and Lee Hamilton, to conduct an independent investigation and recommend security improvements. In a related development, the Senate voted 97-0 to confirm Air Force Gen. John Gordon, the deputy director of the CIA, to take on a new post of security czar at the Department of Energy. In the meantime, the investigation continues at Los Alamos, where FBI agents plan to give polygraph tests to scientists who had access to the vault.

De Nie, Michael W.

218

Factoring Polynomials and Fibonacci.  

ERIC Educational Resources Information Center

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)

Schwartzman, Steven

1986-01-01

219

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.

220

Factor V deficiency  

MedlinePLUS

... as many as 20 different proteins in blood plasma. These proteins are called blood coagulation factors. Factor ... You will be given fresh blood plasma or fresh frozen plasma infusions ... These treatments will correct the deficiency temporarily.

221

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

NASA Astrophysics Data System (ADS)

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.

Ballesteros Benavides, Maria Elvira

222

Multilevel Mixture Factor Models  

ERIC Educational Resources Information Center

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)…

Varriale, Roberta; Vermunt, Jeroen K.

2012-01-01

223

A time series of urban forestry in Los Angeles  

Microsoft Academic Search

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

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

224

Lecturas sobre Locke: Los dilemas de la propiedady la libertad  

Microsoft Academic Search

This presentation is part of the Conceptions of Autonomy track.\\u000aEste trabajo interroga por los sentidos del argumento según el cual la primera propiedad de un individuo es su cuerpo a la luz de los debates feministas del presente. Interroga también por las transformaciones que las condiciones históricas, sociales y los horizontes de comprensión marcados por las lenguas y las

Alejandra Ciriza

2010-01-01

225

PRCTICAS OCULTAS DE LOS "ANUSI11" DEL NUEVO MUNDO  

E-print Network

PRÁCTICAS OCULTAS DE LOS "ANUSI11" DEL NUEVO MUNDO ScHL:lA\\llTH C. H ALEVY* N ..\\CHl!'.1 DERSHO\\\\'ITZ* \\1CCHOS de los judíos de España y Portugal que fueron obligados a con- \\'ertirse al cristianismo (llamados anusim en hebreo) y sus descendientes, emigraron a América.1 Sabemos por los archivos de la Santa

Dershowitz, Nachum

226

El Efecto Redistributivo de los Impuestos y del Gasto Social Corriente en Bolivia  

Microsoft Academic Search

Este estudio busca respnder las siguintes interrogantes: ¿Quál es la magnitud y cómo se distribuyen los subsidios que se transfieren a los hogares a través de la provisioón pública de los servicios de educación y salud?; ¿Cuál es la magnitud y cómo se distribuyen los impues a los hogares?; ¿Cuál es el efecto individual de los subsidios e impuestos sobre

Osvaldo Nina; Esteban Nina

2004-01-01

227

Bayesian Exploratory Factor Analysis.  

PubMed

This paper develops and applies a Bayesian approach to Exploratory Factor Analysis that improves on ad hoc classical approaches. Our framework relies on dedicated factor models and simultaneously determines the number of factors, the allocation of each measurement to a unique factor, and the corresponding factor loadings. Classical identification criteria are applied and integrated into our Bayesian procedure to generate models that are stable and clearly interpretable. A Monte Carlo study confirms the validity of the approach. The method is used to produce interpretable low dimensional aggregates from a high dimensional set of psychological measurements. PMID:25431517

Conti, Gabriella; Frühwirth-Schnatter, Sylvia; Heckman, James J; Piatek, Rémi

2014-11-01

228

Chinatown Revisited: Arsenic and the Los Angeles Water Supply  

NSDL National Science Digital Library

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.

Hering, Janet; California Institute of Technology, E & S: About Engineering and Science

229

Statistics of Velocity Structure in the Los Angeles Area  

NASA Astrophysics Data System (ADS)

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.

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

2013-12-01

230

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

SciTech Connect

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.

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

1994-12-01

231

Studies of the Los Angeles aerosol:  

NASA Astrophysics Data System (ADS)

This work addresses two important but little studied aspects of the behavior of the atmospheric aerosol: (1)the contributions of the atmospheric aerosol to the surface microlayer (SMIC) of natural waters (a biochemically sensitive site) and (2)the morphological properties of atmospheric aerosols. The first part of the study involved a cooperative program for concurrent measurements of atmospheric aerosol, SMIC, and water column samples. Our group measured aerosol chemical characteristics (in terms of total concentrations and size distributions of various elements) at several locations on the west side of Los Angeles including above Santa Monica Bay. Scatter diagrams were made of SMIC concentrations for various elements vs. atmospheric aerosol concentrations of the same elements for similar time periods. The scatter diagrams identified a subset of elements in the SMIC that tended to increase with the atmospheric concentrations of the same elements. For these elements atmospheric deposition is probably a major source in the SMIC. Our scatter diagrams offer a novel approach to source resolution for the SMIC and potentially, a new method of determining dry deposition rates to natural waters. The second part of the research describes the first systematic study of the morphological properties of atmospheric aggregates in the ultrafine particle size range (dp <= 0.1 ?m). These aggregates are emitted from diesel engines and other high temperature sources and have been linked to adverse effects on public health. Particles were collected from the atmospheric air on transmission electron microscope (TEM) grids fitted on the last two stages of a single- jet, eight-stage, low pressure impactor (LPI). Photomicrographs of the TEM grids were analyzed to obtain the fractal dimension (D f) and prefactor (A) for aggregates. Values of Df increased from near 1 to above 2 as the number of primary particles making up the aggregates increased from 10 to 180 for the measurements made in the Los Angeles area. This trend was not observed in the rural sites (e.g. Research Triangle Park, NC and San Jacinto, CA). The count mean prefactor was ~2.9 for all the aggregates. In one set of measurements, the fraction of the particles present as aggregates was about 60% for particles with aerodynamic diameters between 50 and 75 nm and 34% for the range 75 to 120 nm. These data will permit better estimates of atmospheric aggregate residence times, transport and deposition in the lung, optical extinction, and heterogeneous nucleation.

Xiong, Cheng

232

Associations Between Ethnic Labels and Substance Use Among Hispanic/Latino Adolescents in Los Angeles  

PubMed Central

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

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

2014-01-01

233

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

PubMed

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

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

2014-06-01

234

Transportation Program: Los Alamos National Laboratory  

NSDL National Science Digital Library

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.

1998-01-01

235

Expanded recycling at Los Alamos National Laboratory  

SciTech Connect

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 Group to specifically address and solve problems in nonradioactive, Resource Conservation and Recovery Act (RCRA), state-regulated, and sanitary and industrial waste streams (henceforth referred to as sanitary waste in this paper). By identifying materials with recycling potential, identifying best management practices and pathways to return materials for reuse, and introducing the concept and practice of {open_quotes}asset management,{open_quotes} the Group will divert much of the current waste stream from disposal. This Group is developing procedures, agreements, and contracts to stage, collect, sort, segregate, transport and process materials, and is also garnering support for the program through the involvement of upper management, facility managers, and generators.

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

1996-07-01

236

Historic Manhattan Project Sites at Los Alamos  

SciTech Connect

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.

McGehee, Ellen

2014-05-22

237

La vgtation aquatique est principalement constitue de phanrogames et de  

E-print Network

s épiphytes tels que hydrozoaires,, serpulides, algues, éponges, balanes, qui y vivent sans les parasiter. Ces de mer et les poissons. Epiphytes (algues, éponges, mollusques) Prédateursmobiles Les feuilles sont

238

LES MTHODES DE DOSAGE DES PRINCIPALES VITAMINES HYDROSOLUBLES (1)  

E-print Network

découvert les molécules chimiques des diverses vitamines, acide ascorbique, thiamine, riboflavine, etc, et les résultats de ces méthodes chimz'ques sont exprimés en milligrammes de thiamine, ou riboflavine

Boyer, Edmond

239

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

Microsoft Academic Search

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

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

2009-01-01

240

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

E-print Network

TABL�N DE ANUNCIOS La recogida de DIPLOMAS de los cursos impartidos por este Departamento se harán DIPLOMAS DEL CURSO Cerrado plazo de matrícula. Curso "DISE�O Y CREACI�N DE WEBQUESTS. APRENDIZAJE A TRAV�S PRESENCIAL) YA ESTÁN DISPONIBLES EN LA SECRETARÍA DEL DEPARTAMENTO, LOS DIPLOMAS DEL CURSO Más noticias

Escolano, Francisco

241

Exploratory Bi-Factor Analysis  

ERIC Educational Resources Information Center

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…

Jennrich, Robert I.; Bentler, Peter M.

2011-01-01

242

Desafos para los Sistemas de Transmisin ChilenosTransmisin Chilenos  

E-print Network

Aysén Aysén Aysén (Pascua 2.1) Ventanas 3 Guacolda 4 Quinteros GNL Guacolda 3 Los Cóndores �uble San Aysén Aysén Aysén (Pascua 2.1) Ventanas 3 Guacolda 4 Quinteros GNL Guacolda 3 Los Cóndores �uble San

Dixon, Juan

243

La deforestación y los derechos de propiedad en América Latina  

Microsoft Academic Search

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

Carlos Felipe Jaramillo; Thomas Kelly

1999-01-01

244

Coca-Cola Hispanic Education Fund: Los Angeles Program Description.  

ERIC Educational Resources Information Center

The Coca-Cola Hispanic Education Fund was created in response to the high school dropout problem in Los Angeles. The Fund enables the Coca-Cola Bottling Company of Los Angeles to build upon the successful relationship it has developed in the Hispanic community and maximizes the effectiveness of existing student support programs by directing needy…

Coca Cola Bottling Co. of Los Angeles, CA.

245

Los Alamos National Laboratory Issue 1 June 2014  

E-print Network

existing Los Alamos nuclear facilities and processes to create training exercises that are interactive by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the US any legal liability or responsibility for the accuracy, completeness, or usefulness of any information

246

Los valores morales responsabilidad y humanismo en la educación preuniversitaria  

Microsoft Academic Search

En el siguiente artículo se aborda lo referente a la necesidad e importancia de contribuir al fortalecimiento de los valores morales responsabilidad y humanismo en los alumnos del nivel medio superior. Dentro de las cuestiones fundamentales que se analizan se encuentran las actividades que puede poner en práctica el docente en la enseñanza media superior para incidir de forma positiva

Martha María Labrada Ramírez; Higor Atucha Rodríguez

2011-01-01

247

TABLA DE ADAPTACIN DERECHO DE LOS NEGOCIOS Y LITIGACIN INTERNACIONAL  

E-print Network

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

Rey Juan Carlos, Universidad

248

Analysis of Los Angeles Photochemical Smog Data: A Statistical Overview  

Microsoft Academic Search

A research project has been under way to investigate air pollution problems in Los Angeles County with the help of the data supplied by the Los Angeles County Air Pollution Control District. These data consist of measurements of primary pollutants such as nitric oxide, hydrocarbons, carbon monoxide, sulfur dioxide and particu-lates, and secondary pollutants such as ozone and nitrogen dioxide,

G. C. Tiao; G. E. P. Box; W. J. Hamming

1975-01-01

249

Nucleon form factors  

SciTech Connect

Nucleon elastic form factors parametrize the internal structure of the nucleon as probed by the electroweak force. In particular, they provide information on the distribution of nucleon charge among sea and valence quarks and on the distribution of flavor in the nucleon. The recent measurements are reviewed and new techniques to experimentally determine the form factors are described. Future plans at the new high duty-factor electron machines are discussed. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

Milner, R.G. [Bates Linear Accelerator Center and Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

1995-07-10

250

Meson electromagnetic form factors  

E-print Network

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.

Stanislav Dubnicka; Anna Z. Dubnickova

2012-10-23

251

Fault zone regulation, seismic hazard, and social vulnerability in Los Angeles, California: Hazard or urban amenity?  

NASA Astrophysics Data System (ADS)

Public perception and regulation of environmental hazards are important factors in the development and configuration of cities. Throughout California, probabilistic seismic hazard mapping and geologic investigations of active faults have spatially quantified earthquake hazard. In Los Angeles, these analyses have informed earthquake engineering, public awareness, the insurance industry, and the government regulation of developments near faults. Understanding the impact of natural hazards regulation on the social and built geography of cities is vital for informing future science and policy directions. We constructed a relative social vulnerability index classification for Los Angeles to examine the social condition within regions of significant seismic hazard, including areas regulated as Alquist-Priolo (AP) Act earthquake fault zones. Despite hazard disclosures, social vulnerability is lowest within AP regulatory zones and vulnerability increases with distance from them. Because the AP Act requires building setbacks from active faults, newer developments in these zones are bisected by parks. Parcel-level analysis demonstrates that homes adjacent to these fault zone parks are the most valuable in their neighborhoods. At a broad scale, a Landsat-based normalized difference vegetation index shows that greenness near AP zones is greater than the rest of the metropolitan area. In the parks-poor city of Los Angeles, fault zone regulation has contributed to the construction of park space within areas of earthquake hazard, thus transforming zones of natural hazard into amenities, attracting populations of relatively high social status, and demonstrating that the distribution of social vulnerability is sometimes more strongly tied to amenities than hazards.

Toké, Nathan A.; Boone, Christopher G.; Arrowsmith, J. Ramón

2014-09-01

252

3D View of Los Angeles  

NASA Technical Reports Server (NTRS)

California's topography poses challenges for road builders. Northwest of Los Angeles, deformation of Earth's crust along the Pacific-North American crustal plate boundary has made transportation difficult. Direct connection between metropolitan Los Angeles (image lower left) and California's Central Valley (image top center) through the rugged terrain seen on the left side of this image was long avoided in favor of longer but easier paths. However, over the last century, three generations of roads have traversed this terrain. The first was 'The Ridge Route', a two-lane road, built in 1915, which followed long winding ridge lines that included 697 curves. The second, built in 1933, was to become four-lane U.S. Highway 99. It generally followed widened canyon bottoms. The third is the current eight lane Interstate 5 freeway, built in the 1960s, which is generally notched into hillsides, but also includes a stretch of several miles where the two directions of travel are widely separated and driving is 'on the left', a rarity in the United States. Such an unusual highway configuration was necessary in order to optimize the road grades for uphill and downhill traffic in this topographically challenging setting. This anaglyph was generated by first draping a Landsat satellite image over a preliminary topographic map from the Shuttle Radar Topography Mission (SRTM), then generating two differing perspectives, one for each eye. When viewed through special glasses, the result is a vertically exaggerated view of the Earth's surface in its full three dimensions. Anaglyph glasses cover the left eye with a red filter and cover the right eye with a blue filter. Landsat has been providing visible and infrared views of the Earth since 1972. SRTM elevation data matches the 30 meter resolution of most Landsat images and will substantially help in analyses of the large and growing Landsat image archive. The elevation data used in this image was acquired by the Shuttle Radar Topography Mission (SRTM) aboard the Space Shuttle Endeavour, launched on February 11, 2000. SRTM used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994. SRTM was designed to collect three-dimensional measurements of the Earth's surface. To collect the 3-D data, engineers added a 60-meter-long (200-foot) mast, installed additional C-band and X-band antennas, and improved tracking and navigation devices. The mission is a cooperative project between the National Aeronautics and Space Administration (NASA), the National Imagery and Mapping Agency (NIMA) of the U.S. Department of Defense (DoD), and the German and Italian space agencies. It is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Earth Science Enterprise, Washington, DC. Size (of full images): 141 by 107 kilometers (88 by 66 miles) Location: 34.5 deg. North lat., 118.7 deg. West lon. Orientation: North toward upper right Image: Landsat bands 1, 2and4, 3 as blue, green, and red, respectively Date Acquired: February 16, 2000 (SRTM), November 11, 1986 (Landsat) Image courtesy NASA/JPL/NIMA

2002-01-01

253

Beam funneling studies at Los Alamos  

SciTech Connect

Funneling two ion beams by interlacing their bunches can reduce the cost and complexity of systems producing intense beams. Applications of funneling could include accelerators for heavy ion inertial fusion, electronuclear breeding, and fusion materials irradiation. Funneling in an RFQ-like structure is an elegant solution at low energy where electric fields are needed to provide strong focusing. Discrete-element funnels, with separate focusing elements, bending magnets, rebunchers and if deflectors, are more flexible. At sufficiently high energies, magnetic-quadrupole lenses can provide strong focusing in a discrete-element funnel. Such a funnel has been designed as a preliminary example of a second funnel in the HIBALL-II accelerator system. In a simulation, two Bi/sup +1/ (mass = 209 amu) beams at 0.5 MeV/A, 20 MHz, 40-mA, separated by 55 cm and angled at +-6/degree/ were combined into a single 80-mA beam at 40 MHz. Emittance growth was calculated, by a modified version of the PIC (particle-in-cell) code PARMILA, to be about 1%. Funnel design experience at Los Alamos has evolved rules-of-thumb that reduce emittance growth. Some of these are to maintain focusing periodicity and strength in both transverse and longitudinal directions; use strong focusing so that the bunch will be small; minimize angles of bend and rf deflection; adjust longitudinal focusing to produce a short bunch at the rf deflector; and design rf deflectors for a uniform electrical field. 4 refs., 3 figs., 2 tabs.

Stovall, J.E.; Guy, F.W.; Stokes, R.H.; Wangler, T.P.

1988-01-01

254

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

E-print Network

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

Ahmad, Sajjad

255

An Equal Opportunity Employer / Operated by Los Alamos National Security LLC for DOE/NNSA Los Alamos Postdoc Program Office  

E-print Network

An Equal Opportunity Employer / Operated by Los Alamos National Security LLC for DOE/NNSA Los will be used for, and that the excess will be returned to them. We will not #12;An Equal Opportunity Employer us of your sponsorship. Yours sincerely, Marcus Weigand Career Committee Chair #12;An Equal

256

Los pilares de las redes 4G: QoS, AAA y Movilidad  

Microsoft Academic Search

Introducción Aún cuando no han aparecido de forma comercial las redes móviles de 3ª generación, que llegarán acompañando a la tecnología UMTS, ya se vislumbra la próxima generación, cuyas principales características podrían resumirse en: núcleo IP, ubicuidad y servicios. En primer lugar se basan en un núcleo IP encargado de ofrecer el transporte en la red, sobre esta base se

Antonio Cuevas; Carlos García; José Ignacio Moreno; Ignacio Soto

257

Overview of environmental factors  

NASA Technical Reports Server (NTRS)

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.

Purvis, C. K.

1989-01-01

258

Factorizing RSA Keys  

NASA Astrophysics Data System (ADS)

Factorization is notoriously difficult. Though the problem is not known to be NP-hard, neither efficient, algorithmic solution nor technologically practicable, quantum-computer solution has been found. This apparent complexity, which renders infeasible the factorization of sufficiently large values, makes secure the RSA cryptographic system.

Blakey, Ed

259

Vitiligo – Exogenous Factors  

Microsoft Academic Search

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

Hagit Matz; Ethel Tur

2004-01-01

260

Angiogenic factors and preeclampsia.  

PubMed

Preeclampsia is a major cause of maternal and neonatal morbidity and mortality worldwide. Although the etiology of preeclampsia is still unclear, recent studies suggest that its major phenotypes, hypertension and proteinuria, may be due to an excess of circulating anti-angiogenic growth factors, most notably soluble fms-like tyrosine kinase 1 (sFlt1) and soluble endoglin (sEng). sFlt1 is an endogenous protein that is produced by the placenta. sFlt1 is able to bind to the angiogenic growth factors vascular endothelial growth factor and placental growth factor, thereby neutralizing their functions. High serum concentrations of sFlt1 and low concentrations of free vascular endothelial growth factor and free placental growth factor have been observed during and prior to clinical manifestation of preeclampsia. More recently, serum levels of sEng were also shown to be significantly elevated in preeclamptic women and levels of sEng correlated strongly with disease severity. Therefore, measurement of sFlt1 and sEng in the maternal circulation may be a useful diagnostic and screening tool for preeclampsia. The availability of such a test to predict preeclampsia would have significant impact on current obstetrical care and may help reduce preeclampsia-induced morbidity and mortality. This review will focus on the role of angiogenic factors in normal and abnormal placental development and indicate how measurement of circulating angiogenic factors may help identify women at risk of preeclampsia. PMID:17127249

Tjoa, May Lee; Levine, Richard J; Karumanchi, S Ananth

2007-01-01

261

Perturbative QCD factorization of ?????  

NASA Astrophysics Data System (ADS)

In this paper, we firstly verify that the factorization hypothesis is valid for the exclusive process ????? at the next-to-leading order (NLO) with the collinear factorization approach, and then extend this proof to the case of the kT factorization approach. We particularly show that at the NLO level, the soft divergences in the full quark level calculation could be canceled completely as for the ????? process where only the pseudoscalar ? meson is involved, and the remaining collinear divergences can be absorbed into the NLO hadron wave functions. The full amplitudes can be factorized as the convolution of the NLO wave functions and the infrared-finite hard kernels with these factorization approaches. We also write out the NLO meson distribution amplitudes in the form of nonlocal matrix elements.

Cheng, Shan; Xiao, Zhen-Jun

2014-10-01

262

SU3 isoscalar factors  

E-print Network

A summary of the properties of the Wigner Clebsch-Gordan coefficients and isoscalar factors for the group SU3 in the SU2$\\otimes$U1 decomposition is presented. The outer degeneracy problem is discussed in detail with a proof of a conjecture (Braunschweig's) which has been the basis of previous work on the SU3 coupling coefficients. Recursion relations obeyed by the SU3 isoscalar factors are produced, along with an algorithm which allows numerical determination of the factors from the recursion relations. The algorithm produces isoscalar factors which share all the symmetry properties under permutation of states and conjugation which are familiar from the SU2 case. The full set of symmetry properties for the SU3 Wigner-Clebsch-Gordan coefficients and isoscalar factors are displayed.

H. Thomas Williams

1995-10-06

263

Coordinación de los sistemas de gestión de calidad, medio ambiente y salud laboral  

Microsoft Academic Search

La aparición sucesiva de los tres sistemas de gestión mencionados en el título, junto con los diferentes ámbitos de aplicación de los mismos, ha llevado a que las empresas los hayan puesto en marcha de manera independiente. A pesar de las numerosas similitudes entre los objetivos y procedimientos contemplados en dichos sistemas, por razones históricas y, en muchos casos, por

Miguel A. Rodriguez; Joan E. Ricart

2000-01-01

264

Smog chamber simulation of Los Angeles pollutant transport  

SciTech Connect

A smog chamber study simulated pollutant transport from Los Angeles to downwind areas by irradiating a typical Los Angeles hydrocarbon/nitrogen oxides mixture for extended periods of time. Smog chamber experiments were extended to 22 hr to obtain an integrated light intensity equal to that which occurs in this city. Results show that downwind oxidant levels are only slightly affected by large changes in emissions of nitrogen oxides. However, it is clear that reduced emissions will lead to an increase in oxidant in downtown Los Angeles. (6 graphs, 9 references, 1 table)

Glasson, W.A.

1981-06-01

265

Potential impacts of climate change on tropospheric ozone in California: a preliminary episodic modeling assessment of the Los Angeles basin and the Sacramento valley  

SciTech Connect

In this preliminary and relatively short modeling effort, an initial assessment is made for the potential air quality implications of climate change in California. The focus is mainly on the effects of changes in temperature and related meteorological and emission factors on ozone formation. Photochemical modeling is performed for two areas in the state: the Los Angeles Basin and the Sacramento Valley.

Taha, Haider

2001-01-01

266

Factors augmenting allergic reactions.  

PubMed

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

Niggemann, B; Beyer, K

2014-12-01

267

Environmental Factors in Autism  

PubMed Central

Autism is a neurodevelopmental disorders characterized by impairments in communication and social behavior, and by repetitive behaviors. Although genetic factors might be largely responsible for the occurrence of autism they cannot fully account for all cases and it is likely that in addition to a certain combination of autism-related genes, specific environmental factors might act as risk factors triggering the development of autism. Thus, the role of environmental factors in autism is an important area of research and recent data will be discussed in this review. Interestingly, the results show that many environmental risk factors are interrelated and their identification and comparison might unveil a common scheme of alterations on a contextual as well as molecular level. For example, both, disruption in the immune system and in zinc homeostasis may affect synaptic transmission in autism. Thus, here, a model is proposed that interconnects the most important and scientifically recognized environmental factors. Moreover, similarities in how these risk factors impact synapse function are discussed and a possible influence on an already well described genetic pathway leading to the development of autism via zinc homeostasis is proposed. PMID:23346059

Grabrucker, Andreas M.

2013-01-01

268

PREVALENCIA Y FACTORES ASOCIADOS AL ASMA EN NIÑOS DE 5 A 14 AÑOS DE UN ÁREA RURAL DEL SUR DEL PERÚ  

Microsoft Academic Search

RESUMEN Objetivos. Determinar la prevalencia y los factores asociados al asma en niños de 5 a 14 años de una zona rural en la provincia de Ica, Perú. Materiales y métodos. Se realizó un estudio transversal en niños de 5 a 14 años del distrito de Santiago, Ica, en el año 2004. Se visitaron a las madres de los niños

César V. Munayco; Jesús Arana; Julio Torres-Chang; Luis Saravia; M. Gabriela Soto-Cabezas

2009-01-01

269

Factor affecting length of stay in late preterm infants: an US national database study.  

PubMed

Abstract Objectives: Late preterm infants are the fastest growing segment of the premature infant population in the United States. However, it is not known if demographic and clinical factors can impact the length of hospital stay (LOS) in this population. The objectives of this study are to determine the following: (a) factors associated with a LOS?>?3?d and (b) whether there is any difference in risks between infants born at 33-34 versus 35-36 weeks. Methods: Utilizing the Nationwide Inpatient Sample Database, a de-identified dataset produced by the Healthcare Cost and Utilization Project, analysis of 81?913 infants born at 33-36 weeks from 2007 to 2008 was conducted. LOS outcome was defined as ?3 and >3?d. Bivariable and multivariable logistic regression was used to evaluate predictors of LOS among this population. Results: Only 42.7% of infants were discharged home within three days. Factors associated with a LOS?>?3?d included gestational age of <35 weeks (RR?=?1.63; CI: 1.58-1.68), birth weight of factors included race, birth region, primary insurance payer and clinical complications. In the adjusted interaction model, these variables have more impact on longer LOS in the 35-36 weeks group (p?LOS in late preterm infants. These variables are more critical for the 35-36 week population. PMID:24853492

Aly, Hany; Hoffman, Heather; El-Dib, Mohamed; Said, Lujain; Mohamed, Mohamed

2014-06-20

270

Teleoperator human factors study  

NASA Technical Reports Server (NTRS)

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

1984-01-01

271

Teleoperator human factors study  

NASA Technical Reports Server (NTRS)

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.

1984-01-01

272

Aerospace Human Factors  

NASA Technical Reports Server (NTRS)

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.

Jordan, Kevin

1999-01-01

273

Factor II deficiency  

MedlinePLUS

... factor II deficiency is caused by: Lack of vitamin K due to long-term use of antibiotics, bile duct obstruction , or poor absorption of vitamin K from the intestines. Some babies are born with ...

274

Factor VIII assay  

MedlinePLUS

Decreased levels may be due to: Disseminated intravascular coagulation (DIC) Hemophilia A Presence of a Factor VIII inhibitor (antibody) Von Willebrand's disease Increased levels may be due to: Advanced age Diabetes ...

275

Rheumatoid Factors: Clinical Applications  

PubMed Central

Rheumatoid factors are antibodies directed against the Fc region of immunoglobulin G. First detected in patients with rheumatoid arthritis 70 years ago, they can also be found in patients with other autoimmune and nonautoimmune conditions, as well as in healthy subjects. Rheumatoid factors form part of the workup for the differential diagnosis of arthropathies. In clinical practice, it is recommended to measure anti-cyclic citrullinated peptide antibodies and rheumatoid factors together because anti-cyclic citrullinated peptide antibodies alone are only moderately sensitive, and the combination of the two markers improves diagnostic accuracy, especially in the case of early rheumatoid arthritis. Furthermore, different rheumatoid factor isotypes alone or in combination can be helpful when managing rheumatoid arthritis patients, from the time of diagnosis until deciding on the choice of therapeutic strategy. PMID:24324289

Castelli, Roberto

2013-01-01

276

New microbial growth factor  

NASA Technical Reports Server (NTRS)

A screening procedure was used to isolate from soil a Penicillium sp., two bacterial isolates, and a Streptomyces sp. that produced a previously unknown 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 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.

Bok, S. H.; Casida, L. E., Jr.

1977-01-01

277

Factor X deficiency  

MedlinePLUS

In: Hoffman R, Benz EJ Jr., Shattil SJ, et al, eds. Hoffman Hematology: Basic Principles and Practice . 5th ed. Philadelphia, ... D, Neff AT. Rare coagulation factor deficiencies In: Hoffman R, Benz EJ Jr, Silberstein LE, Heslop HE, ...

278

Factors Affecting Wound Healing  

PubMed Central

Wound healing, as a normal biological process in the human body, is achieved through four precisely and highly programmed phases: hemostasis, inflammation, proliferation, and remodeling. For a wound to heal successfully, all four phases must occur in the proper sequence and time frame. Many factors can interfere with one or more phases of this process, thus causing improper or impaired wound healing. This article reviews the recent literature on the most significant factors that affect cutaneous wound healing and the potential cellular and/or molecular mechanisms involved. The factors discussed include oxygenation, infection, age and sex hormones, stress, diabetes, obesity, medications, alcoholism, smoking, and nutrition. A better understanding of the influence of these factors on repair may lead to therapeutics that improve wound healing and resolve impaired wounds. PMID:20139336

Guo, S.; DiPietro, L.A.

2010-01-01

279

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

280

Mapping the earthquake hazards of the Los Angeles region.  

USGS Publications Warehouse

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

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

1983-01-01

281

Los Angeles, California as seen from STS-59  

NASA Technical Reports Server (NTRS)

A low altitude, and unusually clear air, provided perhaps the most detailed view of Los Angeles, California ever obtained during a Shuttle flight. Orient with the bulk of the ocean to the lower left. Then Long Beach is in the lower right, just east of the Palos Verdes Hills that extend into the Pacific Ocean. Marina del Rey is cut into the straight segment of beach, with Los Angeles International Airport (LAX) clearly visible to the southeast. Downtown Los Angeles is the light-toned sprawl in the upper right, with the rectangular grid pattern of Pasadena extending out of the picture. The Santa Monica Mountains to the upper left extend east-west, separating the San Fernando Valley from the Los Angeles Basin proper.

1994-01-01

282

South Central Los Angeles: A Community in Transition.  

ERIC Educational Resources Information Center

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)

Lum, Lydia

2001-01-01

283

Articulating the urban boundary : integrating Bogota with Los Cerros Orientales  

E-print Network

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 ...

Bernal, Juan Andres

2013-01-01

284

Investigative Case - Los Angeles and the Future of Mono Lake  

NSDL National Science Digital Library

The Los Angeles and the Future of Mono Lake WebQuest leads students in a guided exploration of Mono Lake's extreme environment and asks them to consider the preservation of this environment in relation to the needs of humans.

Developed by Monica Bruckner, Montana State University, based on the Los Angeles and the Future of Mono Lake WebQuest by Sarah Bordenstein, Marine Biological Laboratory.

285

Perspective View, SRTM / Landsat, Los Angeles, Calif  

NASA Technical Reports Server (NTRS)

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).

2002-01-01

286

Environmental factors and psoriasis.  

PubMed

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, trigger or exacerbate the disease. PMID:17641494

Dika, E; Bardazzi, F; Balestri, R; Maibach, H I

2007-01-01

287

FGF growth factor analogs  

DOEpatents

The present invention provides a fibroblast growth factor heparin-binding analog of the formula: ##STR00001## where R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, X, Y and Z are as defined, pharmaceutical compositions, coating compositions and medical devices including the fibroblast growth factor heparin-binding analog of the foregoing formula, and methods and uses thereof.

Zamora, Paul O. (Gaithersburg, MD); Pena, Louis A. (Poquott, NY); Lin, Xinhua (Plainview, NY); Takahashi, Kazuyuki (Germantown, MD)

2012-07-24

288

Breve panorama del teatro en Ecuador durante los años 80  

E-print Network

forma regular su actividad durante los años setenta, algunos como el Teatro Ensayo, en Quito, han desaparecido. Otros han sido creados y luchan por establecerse y por sostener una acción continua. Durante los ochenta se continuó la labor de amplia.... . 1960-1987: Una actividad de lenta consolidación. . Modos de producción, infraestructura y política teatral. Dramaturgia y puesta en escena en el teatro latinoamericano y caribeño contemporáneo. París: UNESCO/PNUD, 1988. Escenarios de dos mundos. Vol...

Almeida Naveda, Eduardo

1992-04-01

289

A LOS ALUMNOS DE LA FACULTAD DE DERECHO  

E-print Network

A LOS ALUMNOS DE LA FACULTAD DE DERECHO ¿CUENTAS CON EL 70% DE CR�DITOS DE LA CARRERA DE LICENCIADO EN DERECHO? ¿TIENES PROMEDIO MÍNIMO DE 8.0? TE INTERESA: · REVISI�N JURÍDICA DE EXPEDIENTES DE, DELEGACI�N CUAUHT�MOC, TEL�FONOS 52084787. CUPO LIMITADO. #12;A LOS ALUMNOS DE LA FACULTAD DE DERECHO

Islas, León

290

Interest rates factor model  

NASA Astrophysics Data System (ADS)

Interdependence of the interest rates of the US, the UK, and Japan is analyzed in this work by means of spectral analysis and network methods. A predominant effective factor in the interest rate market is which country floats a bond issue, and a minor effective factor is time to maturity of bonds. Power-law cross-correlation among different countries is analyzed by the detrended cross-correlation analysis method. Long-range cross-correlation is found between the first factors of interest rate, while there is no cross-correlation between some of the second factors. The tail dependency is indicated by tail indices from Archimedean copulas, including an empirical copula. In contrast to other pairs, the US-UK first factor pair has tail dependencies in both the upper-tail and lower-tail. Dynamic properties of interest rate are modeled by a stochastic volatility model. The properties of mean reverting and volatility clustering are observed and reflected in this model. The proposed simulation method combines the dependence structures and the factor dynamics model; it simultaneously describes the interest rates of different countries.

Lee, Sangwook; Kim, Min Jae; Kim, Soo Yong

2011-07-01

291

Compilted Quantum Factoring Circuits  

NASA Astrophysics Data System (ADS)

Shor's factoring algorithm is held as one of the most promising and useful applications of quantum computing. It allows one to factor large numbers in polynomial time, undermining the most common cryptographic schemes in use today, such as RSA cryptography. The well known algorithm is based on the quantum fourier transform to find the period of a function, and also makes heavy use of the modular exponentiation operation, given by, U:a0 ->ax^a(mod N), where N is the number to be factored, and x is a random positive integer coprime with N. The modular exponentiation is the bottleneck of the algorithm, the portion that uses the most time. The generic algorithm can factorize any N in time order (N)^3, assuming sufficient memory space for intermediate calculations. Reducing the memory available (as long as it still lies above a certain threshold) increases the time taken by multiplicative factors, keeping its order the same in (N). However, for a given N, or class of N's to factorize, the generic algorithm may be suboptimal, and can be optimized to result in substantial savings in both memory needed and operation time. The different suboperations involved in modular exponentiat

Gamel, Omar; James, Daniel

2013-03-01

292

40 CFR 52.227 - Control strategy and regulations: Particulate matter, Metropolitan Los Angeles Intrastate Region.  

Code of Federal Regulations, 2011 CFR

...strategy and regulations: Particulate matter, Metropolitan Los Angeles Intrastate...strategy and regulations: Particulate matter, Metropolitan Los Angeles Intrastate...the secondary standards for particulate matter in the Metropolitan Los Angeles...

2011-07-01

293

40 CFR 52.227 - Control strategy and regulations: Particulate matter, Metropolitan Los Angeles Intrastate Region.  

...strategy and regulations: Particulate matter, Metropolitan Los Angeles Intrastate...strategy and regulations: Particulate matter, Metropolitan Los Angeles Intrastate...the secondary standards for particulate matter in the Metropolitan Los Angeles...

2014-07-01

294

40 CFR 52.227 - Control strategy and regulations: Particulate matter, Metropolitan Los Angeles Intrastate Region.  

Code of Federal Regulations, 2012 CFR

...strategy and regulations: Particulate matter, Metropolitan Los Angeles Intrastate...strategy and regulations: Particulate matter, Metropolitan Los Angeles Intrastate...the secondary standards for particulate matter in the Metropolitan Los Angeles...

2012-07-01

295

40 CFR 52.227 - Control strategy and regulations: Particulate matter, Metropolitan Los Angeles Intrastate Region.  

Code of Federal Regulations, 2013 CFR

...strategy and regulations: Particulate matter, Metropolitan Los Angeles Intrastate...strategy and regulations: Particulate matter, Metropolitan Los Angeles Intrastate...the secondary standards for particulate matter in the Metropolitan Los Angeles...

2013-07-01

296

40 CFR 52.227 - Control strategy and regulations: Particulate matter, Metropolitan Los Angeles Intrastate Region.  

Code of Federal Regulations, 2010 CFR

...strategy and regulations: Particulate matter, Metropolitan Los Angeles Intrastate...strategy and regulations: Particulate matter, Metropolitan Los Angeles Intrastate...the secondary standards for particulate matter in the Metropolitan Los Angeles...

2010-07-01

297

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

298

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

Federal Register 2010, 2011, 2012, 2013

...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...

2010-11-23

299

Factor Loading Estimation Error and Stability Using Exploratory Factor Analysis  

ERIC Educational Resources Information Center

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…

Sass, Daniel A.

2010-01-01

300

Factor Analysis and Counseling Research  

ERIC Educational Resources Information Center

Topics discussed include factor analysis versus cluster analysis, analysis of Q correlation matrices, ipsativity and factor analysis, and tests for the significance of a correlation matrix prior to application of factor analytic techniques. Techniques for factor extraction discussed include principal components, canonical factor analysis, alpha…

Weiss, David J.

1970-01-01

301

Recursive inverse factorization.  

PubMed

A recursive algorithm for the inverse factorization S(-1)=ZZ(*) of Hermitian positive definite matrices S is proposed. The inverse factorization is based on iterative refinement [A.M.N. Niklasson, Phys. Rev. B 70, 193102 (2004)] combined with a recursive decomposition of S. As the computational kernel is matrix-matrix multiplication, the algorithm can be parallelized and the computational effort increases linearly with system size for systems with sufficiently sparse matrices. Recent advances in network theory are used to find appropriate recursive decompositions. We show that optimization of the so-called network modularity results in an improved partitioning compared to other approaches. In particular, when the recursive inverse factorization is applied to overlap matrices of irregularly structured three-dimensional molecules. PMID:18345875

Rubensson, Emanuel H; Bock, Nicolas; Holmström, Erik; Niklasson, Anders M N

2008-03-14

302

DSN human factors project  

NASA Technical Reports Server (NTRS)

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.

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

1980-01-01

303

Psychological Factors in Asthma  

PubMed Central

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

2008-01-01

304

Antiretroviral Restriction Factors  

PubMed Central

Studies of retroviruses have been instrumental in revealing the existence of an array of antiviral proteins, or restriction factors, and the mechanisms by which they function. Some restriction factors appear to specifically inhibit retrovirus replication, while others have a broader antiviral action. Here, we briefly review current understanding of the mechanisms by which several such proteins exert antiviral activity. We also discuss how retroviruses have evolved to evade or antagonize antiviral proteins, including through the action of viral accessory proteins. Restriction factors, their viral targets and antagonists have exerted evolutionary pressure on each other, resulting in specialization and barriers to cross-species transmission. Potentially, this recently revealed intrinsic system of antiviral immunity might be mobilized for therapeutic benefit. PMID:22278313

Hatziioannou, Theodora; Bieniasz, Paul D.

2011-01-01

305

Multi-factor authentication  

DOEpatents

Detection and deterrence of spoofing of user authentication may be achieved by including a cryptographic fingerprint unit within a hardware device for authenticating a user of the hardware device. The cryptographic fingerprint unit includes an internal physically unclonable function ("PUF") circuit disposed in or on the hardware device, which generates a PUF value. Combining logic is coupled to receive the PUF value, combines the PUF value with one or more other authentication factors to generate a multi-factor authentication value. A key generator is coupled to generate a private key and a public key based on the multi-factor authentication value while a decryptor is coupled to receive an authentication challenge posed to the hardware device and encrypted with the public key and coupled to output a response to the authentication challenge decrypted with the private key.

Hamlet, Jason R; Pierson, Lyndon G

2014-10-21

306

Health factors in colostrum.  

PubMed

Colostrum is a breast milk produced after the birth of the newborn and lasts for 2-4 days. Colostrum is very important part of breast milk and lays down the immune system and confers growth factors and other protective factors for the young ones in mammals. This is the source of passive immunity achieved by the mother and is transferred to the baby. This is the major source of secretory IgA and gives protection against gastrointestinal infections. In view of so many health factors through colostrum, the use of colostrum has been extended to so many health problems of mankind. Human and bovine colostrums have many similarities barring that bovine colostrum can be obtained in large quantity, so bovine colostrum has been used in various disorders in human beings. This is the nature's gift that is for the young ones to grow as well as for the treatment of many health problems in older age group. PMID:16077241

Thapa, B R

2005-07-01

307

Role of human factor VIII in factor X activation.  

PubMed Central

The cofactor function of human Factor VIII in Factor X activation was investigated by an initial-rate assay of 3H-Factor X activation in the presence of human factor IXa, Ca2+, and either phospholipid or fresh washed human platelets. Purified Factor VIII that has not been activated by thrombin or Factor Xa supports Factor X activation after a lag of several minutes. A specific inhibitor of Factor Xa, which had no inhibitory activity against Factor IXa, markedly prolonged this lag, whereas specific thrombin inhibitors did not prolong the lag. These data support the conclusion that unactivated Factor VIII has no ability to support Factor X activation in a purified system until it is activated by Factor Xa feedback during the lag period. When Factor VIII was optimally preactivated by thrombin, the lag was completely abolished, regardless of the order of addition of the other reactants or the phospholipid source. These data indicate that there is no slow, time-dependent ordering of the reactants at the phospholipid or activated platelet surface if Factor VIII has been preactivated. Unactivated platelets did not support Factor X activation by Factors IXa and VIII. The effect of activated Factor VIII on the kinetics of bovine Factor X activation was primarily to increase the Vmax (54-fold), whereas with human Factor X, Factor VIII both increased the Vmax 56-fold and decreased the Km sixfold to 0.14 microM, similar to the plasma concentration of Factor X. Therefore, a change in the plasma factor X concentration would be expected to have a major effect on the rate of Factor X activation in vivo. PMID:6804496

Hultin, M B

1982-01-01

308

Power Factor Improvement  

E-print Network

and Dr. Russell Heiser mann, School of Technology, Electrical Power Department. 1032 ESL-IE-79-04-121 Proceedings from the First Industrial Energy Technology Conference Houston, TX, April 22-25, 1979 I 3. Total Olrrent - (apparent power... is the power factor of the load on a 460 volt, 3 phase system if the annneter indicates 110 amperes and the wattmeter reads 60 KW? Since in a 3-phase circuit: KVA = 3 volts' amperes = 1.73 * 460 * 110 87.54 1000 1000 Power factor = ~V = 60 = .685 or 68...

Viljoen, T. A.

1979-01-01

309

Identificación de los miembros del cúmulo NGC 2516  

NASA Astrophysics Data System (ADS)

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.

de Elía, G. C.; Orellana, R. B.

310

Clinical Factors Affecting Length of Stay After 100 Consecutive Cases of Primary Cleft Lip Repair.  

PubMed

Objective :? To analyze the hospital course of 100 consecutive infants after primary cleft lip repair (PCLR) and identify factors related to length of stay (LOS). Design :? Retrospective analysis of 100 consecutive infants who were routinely admitted after PCLR. Setting :? Tertiary care center. Patients :? One hundred consecutive infants undergoing PCLR. Demographic and perioperative data were collected and analyzed. Main Outcome Measure :? LOS, planned before data collection. Results :? Male:female ratio was 65:35. Seventy-two infants had unilateral cleft lip; syndromic association was documented in 15 patients. Mean age and weight at PCLR were 5.6 ± 4.0 months and 6.7 ± 1.3 kg, respectively. Mean duration of surgery was 2.5 ± 0.9 hours, and mean duration of general anesthesia was 3.4 ± 0.9 hours. A total of 3.3 ± 1.5 mL of intraoperative local anesthetic was used per patient. Intravenous fluids were necessary after transfer from the post-anesthesia care unit to the general ward in 98% of patients. Almost half (44%) of all patients received intravenous morphine 23 hours or more after hospital admission. Mean LOS was 35.8 ± 13.9 hours. No association was identified between patient demographic factors and LOS. Multivariate linear regression models identified significant positive correlation between LOS and duration of general anesthesia (P = .002). Greater volume of postoperative oral intake (P = .000) and higher acetaminophen dosage on the floor (P = .000) correlated with decreased LOS. Conclusions :? This study identifies perioperative factors associated with LOS. Our findings question the safety of routine outpatient or short-stay observation after PCLR. PMID:25137604

Oh, Albert K; Magge, Keshav; Sauerhammer, Tina M; Kim, Jacqueline; Atnafu, Mahlet; Boyajian, Michael J; Rogers, Gary F

2014-08-19

311

Growth factors in bone repair  

Microsoft Academic Search

The role of growth factors (GF) in bone repair is widely recognised, particularly for bone morphogenetic proteins (BMPs),\\u000a fibroblast growth factor (FGF), insulin-like growth factors (IGFs), platelet-derived growth factor (PDGF), transforming growth\\u000a factor-? (TGF-?) and vascular endothelial growth factor (VEGF). GF are usually stored in the extracellular matrix (ECM), but\\u000a after injury are actively released by ECM, cells and platelets.

Valentina Devescovi; Elisa Leonardi; Gabriela Ciapetti; Elisabetta Cenni

2008-01-01

312

Environmental Survey preliminary report, Los Alamos National Laboratory, Los Alamos, New Mexico  

SciTech Connect

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.

Not Available

1988-01-01

313

Environmental assessment for effluent reduction, Los Alamos National Laboratory, Los Alamos, New Mexico  

SciTech Connect

The Department of Energy (DOE) proposes to eliminate industrial effluent from 27 outfalls at Los Alamos National Laboratory (LANL). The Proposed Action includes both simple and extensive plumbing modifications, which would result in the elimination of industrial effluent being released to the environment through 27 outfalls. The industrial effluent currently going to about half of the 27 outfalls under consideration would be rerouted to LANL`s sanitary sewer system. Industrial effluent from other outfalls would be eliminated by replacing once-through cooling water systems with recirculation systems, or, in a few instances, operational changes would result in no generation of industrial effluent. After the industrial effluents have been discontinued, the affected outfalls would be removed from the NPDES Permit. The pipes from the source building or structure to the discharge point for the outfalls may be plugged, or excavated and removed. Other outfalls would remain intact and would continue to discharge stormwater. The No Action alternative, which would maintain the status quo for LANL`s outfalls, was also analyzed. An alternative in which industrial effluent would be treated at the source facilities was considered but dismissed from further analysis because it would not reasonably meet the DOE`s purpose for action, and its potential environmental effects were bounded by the analysis of the Proposed Action and the No Action alternatives.

NONE

1996-09-11

314

Optimal power factor correction  

SciTech Connect

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.

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

1988-08-01

315

Factor Trail Game  

NSDL National Science Digital Library

In this math game, learners identify the factors of a number to earn points. Although practicing a mundane skill, learners enjoy the work because of the game scenario. Built into this game is cooperative learning--learners check one another's work before points are awarded. This lesson guide includes questions for learners, assessment options, extensions, and reflection questions.

2008-01-01

316

Introduction to human factors  

SciTech Connect

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)

Winters, J.M.

1988-03-01

317

Computing nonnegative tensor factorizations  

E-print Network

Oct 19, 2006 ... an approximation of V. A vital property of the NTF is that each factor is also nonnegative. ..... of l1 regularization include signal processing for the recovery of sparse signals; see, e.g., ..... Robust uncertainty principles: Exact.

2006-10-18

318

Robust Bayesian Factor Analysis  

ERIC Educational Resources Information Center

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…

Hayashi, Kentaro; Yuan, Ke-Hai

2003-01-01

319

Teleoperator human factors study  

NASA Technical Reports Server (NTRS)

The progress made on the Teleoperator Human Factors Study program during the period of September 7, 1985 to October 6, 1985 is discussed. Technical and programmatic problems that were encountered are discussed along with activity planned for the following month. The main portion of the report has been separated into four sections: Work Performed, Future Work, Problems Encountered, and Cost Information.

Bradford, K. Z.; Schappell, R. T.

1985-01-01

320

A Formula for Factoring.  

ERIC Educational Resources Information Center

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…

Roebuck, Kay I. Meeks

1997-01-01

321

Factors Influencing Professorial Assessment.  

ERIC Educational Resources Information Center

The Oregon State System of Higher Education recently completed a 3-year study entitled Faculty Teaching: Models for Assessment of Quality. Over 400 teaching and administrative faculty selected on a random or stratified basis answered the following questions: (1) What factors are considered in the assessment of faculty performance? (2) What…

Scott, Craig S.; And Others

322

Scale Factor X  

NSDL National Science Digital Library

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.

2010-01-01

323

Nucleon electromagnetic form factors  

SciTech Connect

A review of data on the nucleon electromagnetic form factors in the space-like region is presented. Recent results from experiments using polarized beams and polarized targets or nucleon recoil polarimeters have yielded a significant improvement on the precision of the data obtained with the traditional Rosenbluth separation. Future plans for extended measurements are outlined.

Kees de Jager

2000-01-01

324

Factors Affecting Photosynthesis!  

E-print Network

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

Kudela, Raphael M.

325

Factors Predicting Educational Productivity.  

ERIC Educational Resources Information Center

Since 1968 educational productivity studies at the University of Florida have been analyzing data from six States and one city. Linear regression was used to identify high and low productive units by measuring the relationship between statistically selected input factors and a measure of student achievement. Discriminant analysis was employed to…

Hanes, Carol E.; Jordan, K. Forbis

326

Projectile Motion (factoring quadratics)  

NSDL National Science Digital Library

Students use the internet to research values relevant to projectile motion such as acceleration due to gravity and the height of objects. Using the given information students will have to make unit conversions to ensure that all units are the same. They will then solve problems on projectile motion by factoring.

2010-01-01

327

Optical Properties of Smoke Aerosol Over Los Alamos, New Mexico, Derived From AERONET  

NASA Astrophysics Data System (ADS)

Significant amounts of atmospheric aerosols are annually generated from wildfires and biomass burning events. Smoke aerosol, from biomass combustion, is a leading source of natural and anthropogenic pollution affecting Earth's radiation budget. Recent improvements in the detailed knowledge of smoke aerosol optical properties have reduced uncertainties in the role of biomass burning on climate forcing. The increase in smoke aerosol knowledge has been largely advanced with data acquired through the global network of AERONET (http://aeronet.gsfc.nasa.gov/index.html) sun/sky radiometers. Previous studies using AERONET data have revealed variability in smoke aerosol properties generated from different biomes throughout the world. Here we present AERONET measurements over Los Alamos, New Mexico to assess the influence of smoke aerosol over a region where seasonal variations in biomass burning occur regularly and research on smoke aerosol properties has remained minimal. During June of 2005, a series of wildfires resulted in heavy aerosol loading throughout the Southwestern United States. Significant variations in aerosol optical thickness were observed during this period over the Los Alamos AERONET site (35.87 N, 106.33 W). Computed back trajectories using the Hybrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) model (https://www.arl.noaa.gov/ready/hysplit4.html) revealed advection of smoke aerosol from fire sites in Arizona, Nevada, Utah, and New Mexico. Aerosol optical depth, size distribution, and single scattering albedo measurements from AERONET at Los Alamos were analyzed for this period and compared to periods not dominated by the presence of smoke aerosol. Results indicated that the influence of smoke aerosol increased aerosol optical thickness by a factor of five at 440nm, and resulted in bimodal size distributions dominated by fine mode accumulation particles. Single scattering albedo values were typically .95 on days dominated by smoke aerosol. Relationships among single scattering albedo and size distributions will be further discussed.

Altmann, G.; Henderson, B.; Dubey, M.; Petr, C.; Porch, W.

2005-12-01

328

FACTORS INFLUENCING THE DESIGN OF BIOACCUMULATION FACTOR AND BIOTA-SEDIMENT ACCUMULATION FACTOR FIELD STUDIES  

EPA Science Inventory

General guidance for designing field studies to measure bioaccumulation factors (BAFs) and biota-sediment accumulation factors (BSAFs) is not available. To develop such guidance, a series of modeling simulations were performed to evaluate the underlying factors and principles th...

329

FACTORS INFLUENCING THE DESIGN OF BIOACCUMULATION FACTOR AND BIOTA-SEDIMENT ACCUMULATION FACTOR FIELD STUDIES  

EPA Science Inventory

A series of modeling simulations were performed to develop an understanding of the underlying factors and principles involved in developing field sampling designs for measuring bioaccumulation factors (BAFs) and biota-sediment accumulation factors (BSAFs. These simulations reveal...

330

Water Supply at Los Alamos 1998-2001  

SciTech Connect

For the period 1998 through 2001, the total water used at Los Alamos from all sources ranged from 1325 million gallons (Mg) in 1999 to 1515 Mg in 2000. Groundwater production ranged from 1323 Mg in 1999 to 1506 Mg in 2000 from the Guaje, Pajarito, and Otowi fields. Nonpotable surface water used from Los Alamos reservoir ranged from zero gallons in 2001 to 9.3 Mg in 2000. For years 1998 through 2001, over 99% of all water used at Los Alamos was groundwater. Water use by Los Alamos National Laboratory (LANL) between 1998 and 2001 ranged from 379 Mg in 2000 to 461 Mg in 1998. The LANL water use in 2001 was 393 Mg or 27% of the total water use at Los Alamos. Water use by Los Alamos County ranged from 872 Mg in 1999 to 1137 Mg in 2000, and averaged 1006 Mg/yr. Four new replacement wells in the Guaje field (G-2A, G-3A, G-4A, and G-5A) were drilled in 1998 and began production in 1999; with existing well G-1A, the Guaje field currently has five producing wells. Five of the old Guaje wells (G-1, G-2, G-4, G-5, and G-6) were plugged and abandoned in 1999, and one well (G-3) was abandoned but remains as an observation well for the Guaje field. The long-term water level observations in production and observation (test) wells at Los Alamos are consistent with the formation of a cone of depression in response to water production. The water level decline is gradual and at most has been about 0.7 to 2 ft per year for production wells and from 0.4 to 0.9 ft/yr for observation (test) wells. The largest water level declines have been in the Guaje field where nonpumping water levels were about 91 ft lower in 2001 than in 1951. The initial water levels of the Guaje replacement wells were 32 to 57 ft lower than the initial water levels of adjacent original Guaje wells. When production wells are taken off-line for pump replacement or repair, water levels have returned to within about 25 ft of initial static levels within 6 to 12 months. Thus, the water-level trends suggest no adverse impacts by production on long-term water supply sustainability at Los Alamos. This report summarizes production data and aquifer conditions for water production and monitor wells in the Los Alamos, New Mexico, and Los Alamos National Laboratory (LANL) area (Figure 1). Water production wells are grouped within the Guaje, Pajarito, and Otowi fields, the locations of which are shown on Figure 1. Wells from these fields supply all the potable water used for municipal and most industrial purposes in Los Alamos County (LAC), at LANL, and at Bandelier National Monument. This report has three primary objectives: (1) Provide a continuing historical record of metered well production and overall water usage; (2) Provide data to the Department of Energy (DOE) and LANL management, and Los Alamos County planners for operation of the water supply system and for long-range water resource planning; and (3) Provide water-level data from regional aquifer production wells, test wells, and monitoring wells.

Richard J. Koch; David B. Rogers

2003-03-01

331

Efectos macroeconómicos de los mercados negros de dólares. El caso del Brasil, 1968-1989  

Microsoft Academic Search

Con la crisis del sistema monetario internacional a principios de los años setenta, tanto los países desarrollados como los menos industrializados se vieron en la necesidad de revisar sus regímenes cambiarios, para atender tanto a la propia volatilidad de los mercados internacionales como al grado de apertura y de movilidad de capitales en sus economías. De esta manera surge una

Alejandro Reynoso del Valle

1992-01-01

332

REPORT FOR BOREHOLE EXPLOSION DATA ACQUIRED IN THE 1999 LOS ANGELES REGION  

E-print Network

Earthquake Center, University of Southern California, Los Angeles CA, 90089-0740 3 Southern California Earthquake Center, University of California at Los Angeles, Los Angeles, CA 90024-1567 4 Southern CaliforniaREPORT FOR BOREHOLE EXPLOSION DATA ACQUIRED IN THE 1999 LOS ANGELES REGION SEISMIC EXPERIMENT

Perron, Taylor

333

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

Federal Register 2010, 2011, 2012, 2013

...INTERIOR Bureau of Reclamation Los Vaqueros Reservoir Expansion, Contra Costa and Alameda...agency, have prepared the Los Vaqueros Reservoir Expansion Final EIS/EIR. Los Vaqueros...two options for expanding Los Vaqueros Reservoir from its existing capacity of 100...

2010-03-19

334

Diez años de estudios de fronteras en los coloquios internacionales de Geocrítica  

Microsoft Academic Search

A lo largo de estos diez años de los Coloquios de Geocrítica los estudios de las fronteras ha ocupado un papel relevante. De hecho, en algunos de los mismos hubo sesiones destinadas a la discusión de investigaciones llevadas a cabo dentro de esta temática (“La frontera como lugar de conflicto” I Coloquio Internacional de Geocrítica: Iberoamérica antes los retos del

María Cristina Hevilla Gallardo; Perla Brígida Zusman

2008-01-01

335

Congreso Internacional 1810-2010: 200 aos de Iberoamrica -2321 LA TUTELA DE LOS DERECHOS  

E-print Network

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

Paris-Sud XI, Université de

336

Per: Chirapaq celebra 25 aos con un foro sobre "Derechos de los Pueblos Indgenas"  

E-print Network

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

Islas, León

337

Postcolonialismo como teoría de la administración internacional y su impacto en los negocios internacionales  

Microsoft Academic Search

Este trabajo tiene como objetivo analizar normativamente los discursos del colonialismo y el postcolonialismo como campos de investigación de la administración internacional. Los acercamientos teóricos postcoloniales critican las representaciones euro céntrico y occidental del mundo no-occidental y llaman la atención al conocimiento que claman tener del no occidente. Los acercamientos postcoloniales a la administración internacional también tratan de los supuestos

José G. Vargas-Hernández

2009-01-01

338

Municipal drinking water and cryptosporidiosis among persons with AIDS in Los Angeles County.  

PubMed Central

To assess unfiltered drinking water as a source of cryptosporidium infection in patients with the acquired immunodeficiency syndrome (AIDS) the prevalence of cryptosporidiosis among persons with AIDS in Los Angeles County was assessed by water service area. One water distributor, serving approximately 60% of the county's residents (area B), has consistently employed filtration. The other company, which serves the remainder of the county (area A), did not institute filtration until mid-December 1986. This difference provided a 'natural experiment' in which to assess the effect of municipal water filtration on the level of cryptosporidiosis among persons with AIDS. The prevalence of cryptosporidiosis among AIDS patients was compared for the two water service areas for the time period (1983-6) preceding the implementation of filtration in area A. From 1983 to 1986 the age-standardized prevalence of cryptosporidiosis among AIDS patients was 32% lower in area A (4.2%), which received unfiltered water, than in area B (6.2%). Following addition of filtration in area A, the prevalence of cryptosporidiosis among AIDS patients decreased by 20%; however, a decline, of 47%, was also observed in area B. The similar baseline levels of cryptosporidiosis and the corresponding post-filtration decline in both areas suggest that filtration had no effect on levels of cryptosporidiosis among persons with AIDS. Thus it does not appear that municipal drinking water is an important risk factor for cryptosporidiosis in AIDS patients residing in Los Angeles County. PMID:7925668

Sorvillo, F.; Lieb, L. E.; Nahlen, B.; Miller, J.; Mascola, L.; Ash, L. R.

1994-01-01

339

LAMAP, the Los Alamos National Laboratory mapping code  

SciTech Connect

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.

McGavran, L.P.; Wheat, B.M.

1982-01-01

340

Pilot fruit drier for Los Azufres geothermal field, Michoacan, Mexico  

SciTech Connect

Comision Federal de Electricidad (CFE) has a Division in charge of the exploration of a geothermal reservoir located in Los Azufres, State of Michoacan. At present, CFE is only using the steam of the wells and rejecting the hot water that comes off associated with the steam. Based on a trip to the Los Azufres geothermal field in December of 1992, a design for a pilot geothermal fruit drier was undertaken for CFE. The details of the geothermal field and the local fruit production are detailed.

Lund, J.W.

1993-02-01

341

Evidence for large earthquakes in metropolitan los angeles  

PubMed

The Sierra Madre fault, along the southern flank of the San Gabriel Mountains in the Los Angeles region, has failed in magnitude 7.2 to 7.6 events at least twice in the past 15,000 years. Restoration of slip on the fault indicated a minimum of about 4.0 meters of slip from the most recent earthquake and suggests a total cumulative slip of about 10.5 meters for the past two prehistoric earthquakes. Large surface displacements and strong ground motions resulting from greater than magnitude 7 earthquakes within the Los Angeles region are not yet considered in most seismic hazard and risk assessments. PMID:9665880

Rubin; Lindvall; Rockwell

1998-07-17

342

Los Alamos Using Neutrons to Stop Nuclear Smugglers  

SciTech Connect

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.

Favalli, Andrea; Swinhoe, Martyn

2013-06-03

343

El dramaturgo de Los olvidados: Entrevista con Juan Radrigán  

E-print Network

, "como el cielo, la piedad y los perros." Y quien mejor que él lo sabe. Radrigán es a los pobres lo que Egon Wolff, Vodanovic, Cuadra, son a la burguesía y clase media chilenas en la dramaturgia nacional. Todos ellos son fieles al medio que representan... actores deben aportar la caracterización. Ni siquiera maquillaje admite. En Hechos consumados hubo que hacer una excepción, pues una de las actrices era rubia y muy llamativa—para no decir hermosa—y debía desempeñar el papel de una vagabunda. Hubo que...

Bravo-Elizondo, Pedro

1983-10-01

344

Contributions of chemistry in early day Los Alamos  

SciTech Connect

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.

Penneman, R.A.; Meade, R.A.

1990-01-01

345

The development of the atomic bomb, Los Alamos  

SciTech Connect

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.

Seidel, R.W.

1993-11-01

346

Los Alamos Using Neutrons to Stop Nuclear Smugglers  

ScienceCinema

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.

Favalli, Andrea; Swinhoe, Martyn

2014-06-02

347

LOS COMITÉS DE ÉTICA DE INVESTIGACIÓN BIOMEDICA Y PSICOSOCIAL EN BOLIVIA*  

PubMed Central

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

Zwareva Mashiri, Elizabeth C.

2010-01-01

348

Active damping of the e-p instability at the Los Alamos Proton Storage Ring  

NASA Astrophysics Data System (ADS)

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.

Macek, R. J.; Assadi, S.; Byrd, J. M.; Deibele, C. E.; Henderson, S. D.; Lee, S. Y.; McCrady, R. C.; Pivi, M. F. T.; Plum, M. A.; Walbridge, S. B.; Zaugg, T. J.

2007-12-01

349

Calculational evaluation of plasma flow switches for the Los Alamos Foil Implosion Project  

SciTech Connect

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.

Greene, A.E.; Bowers, R.L.; Oliphant, T.A.; Peterson, D.L.; Weiss, D.L.

1989-01-01

350

Active Damping of the E-P Instability at the Los Alamos Proton Storage Ring  

SciTech Connect

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.

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

351

Risk Factors for Eating Disorders  

Microsoft Academic Search

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 in understanding the etiology of eating disorders require

Ruth H. Striegel-Moore; Cynthia M. Bulik

2007-01-01

352

Journal Information Journal Impact Factor  

E-print Network

Journal Information Journal Impact Factor 5-Year Journal Impact Factor Journal Self Cites Journal Immediacy Index Journal Cited Half-Life 2012 JCR Science Edition Journal: CZECHOSLOVAK MATHEMATICAL JOURNAL Mark Journal Title ISSN Total Cites Impact Factor 5-Year Impact Factor Immediacy Index Citable Items

Krejcí, Pavel

353

Risk Factors for Eating Disorders  

ERIC Educational Resources Information Center

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…

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

2007-01-01

354

[Streptococcus pyogenes pathogenic factors].  

PubMed

The pathogenicity of ß-hemolytic group A streptococcus (GAS) is particularly diverse, ranging from mild infections, such as pharyngitis or impetigo, to potentially debilitating poststreptococcal diseases, and up to severe invasive infections such as necrotizing fasciitis or the dreaded streptococcal toxic shock syndrome. This variety of clinical expressions, often radically different in individuals infected with the same strain, results from a complex interaction between the bacterial virulence factors, the mode of infection and the immune system of the host. Advances in comparative genomics have led to a better understanding of how, following this confrontation, GAS adapts to the immune system's pressure, either peacefully by reducing the expression of certain virulence factors to achieve an asymptomatic carriage, or on the contrary, by overexpressing them disproportionately, resulting in the most severe forms of invasive infection. PMID:25456681

Bidet, Ph; Bonacorsi, S

2014-11-01

355

Human factors workplace considerations  

NASA Technical Reports Server (NTRS)

Computer workstations assume many different forms and play different functions today. In order for them to assume the effective interface role which they should play they must be properly designed to take into account the ubiguitous human factor. In addition, the entire workplace in which they are used should be properly configured so as to enhance the operational features of the individual workstation where possible. A number of general human factors workplace considerations are presented. This ongoing series of notes covers such topics as achieving comfort and good screen visibility, hardware issues (e.g., mouse maintenance), screen symbology features (e.g., labels, cursors, prompts), and various miscellaneous subjects. These notes are presented here in order to: (1) illustrate how one's workstation can be used to support telescience activities of many other people working within an organization, and (2) provide a single complete set of considerations for future reference.

Haines, Richard F.

1988-01-01

356

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.

357

Factors regulating microglia activation  

PubMed Central

Microglia are resident macrophages of the central nervous system (CNS) that display high functional similarities to other tissue macrophages. However, it is especially important to create and maintain an intact tissue homeostasis to support the neuronal cells, which are very sensitive even to minor changes in their environment. The transition from the “resting” but surveying microglial phenotype to an activated stage is tightly regulated by several intrinsic (e.g., Runx-1, Irf8, and Pu.1) and extrinsic factors (e.g., CD200, CX3CR1, and TREM2). Under physiological conditions, minor changes of those factors are sufficient to cause fatal dysregulation of microglial cell homeostasis and result in severe CNS pathologies. In this review, we discuss recent achievements that gave new insights into mechanisms that ensure microglia quiescence. PMID:23630462

Kierdorf, Katrin; Prinz, Marco

2013-01-01

358

Needs assessment for fire department services and resources for the Los Alamos National Laboratory, Los Alamos, New Mexico. Final report  

SciTech Connect

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).

NONE

1995-11-15

359

Factor Trail Game  

NSDL National Science Digital Library

In this math game, learners identify the factors of a number to earn points. The score sheet used for this game provides a built-in assessment tool that teachers can use to check their students' understanding. This game also provides an opportunity for cooperative learning--learners check one another's work before points are awarded. This lesson guide includes questions for learners, assessment options, extensions, and reflection questions.

Vennebush., G. P.

2008-01-01

360

The Fas Death Factor  

Microsoft Academic Search

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

Shigekazu Nagata; Pierre Golstein

1995-01-01

361

Human Factors Review Plan  

SciTech Connect

''Human Factors'' is concerned with the incorporation of human user considerations into a system in order to maximize human reliability and reduce errors. This Review Plan is intended to assist in the assessment of human factors conditions in existing DOE facilities. In addition to specifying assessment methodologies, the plan describes techniques for improving conditions which are found to not adequately support reliable human performance. The following topics are addressed: (1) selection of areas for review describes techniques for needs assessment to assist in selecting and prioritizing areas for review; (2) human factors engineering review is concerned with optimizing the interfaces between people and equipment and people and their work environment; (3) procedures review evaluates completeness and accuracy of procedures, as well as their usability and management; (4) organizational interface review is concerned with communication and coordination between all levels of an organization; and (5) training review evaluates training program criteria such as those involving: trainee selection, qualification of training staff, content and conduct of training, requalification training, and program management.

Paramore, B.; Peterson, L.R. (eds.)

1985-12-01

362

NCI ofrece apoyo a quienes están necesitados después de los huracanes Katrina y Rita  

Cancer.gov

El Instituto Nacional del Cáncer (NCI), parte de los Institutos Nacionales de la Salud (NIH), está empeñado en ayudar a las miles de personas que han sido asoladas por los efectos de los huracánes Katrina y Rita. NCI está tratando de llegar a los públicos diversos para proporcionarles información relacionada con el cáncer que pueda ser compartida con exactitud y efectividad con quienes han sido afectados por los huracánes.

363

A survey of macromycete diversity at Los Alamos National Laboratory, Bandelier National Monument, and Los Alamos County; A preliminary report  

SciTech Connect

The authors have completed a 5-year survey (1991--1995) of macromycetes found in Los Alamos County, Los Alamos National Laboratory, and Bandelier National Monument. The authors have compiled a database of 1,048 collections, their characteristics, and identifications. The database represents 123 (98%) genera and 175 (73%) species reliably identified. Issues of habitat loss, species extinction, and ecological relationships are addressed, and comparisons with other surveys are made. With this baseline information and modeling of this baseline data, one can begin to understand more about the fungal flora of the area.

Jarmie, N.; Rogers, F.J. [Mycology Associates, Los Alamos, NM (United States)

1997-11-01

364

Radiant-interchange configuration factors  

E-print Network

. Derivation of the Configuration Factor 2. The Configuration Factor for Two Joined Rectangles 3. The Configuration Factor for Two Detached Rectangles . . . . . ~ . . . ~ , 12 III. METHODS OF SOLUTION 1. Simpson's One-Third Rule 2. Grid Method 3... TABLE I, Configuration Factors for Two Joined Rectangles II. Percent Difference and Time Figures for Two Joined Rectangles III. Configuration Factors for Two Detached Rectangles PAGE 25 25 ~ ~ ~ ~ 26 vi LIST OF FIGURES FIGURE PAGE 2. 1 2...

Reddin, Thomas Edward

1965-01-01

365

Tissue factor and atherothrombosis.  

PubMed

Tissue factor (TF) is known to be the key element in the initiation of the extrinsic pathway of the coagulation cascade and appears to be a critical determinant of atherosclerotic plaque thrombogenicity. TF is needed to produce thrombin from prothrombin. In the extrinsic pathway, TF activates factor Vll. TF is expressed mainly on subendothelial tissues, but TF expression may be induced on endothelial cells by inflammatory mediators such as tumor necrosis factor-alpha (TNF-alpha). Subendothelial TF is responsible for initiating fibrin formation at sites of vascular injury, bloodborne TF may be an important contributor to propagation of the developing thrombus. It has been postulated that the blood-borne TF initiates the thrombogenic stimulus, leading to the formation of larger and more stable thrombus. TF may attach to cellular receptors, which in turn affect the production and release of inflammatory mediators. Baseline plasma TF activity has been demonstrated as an independent predictor for cardiovascular death in patients with acute myocardial infarction. TF is expressed by macrophage-derived foam cells in atherosclerotic plaques. TF levels were higher in atheroma from patients with unstable angina than with stable angina. These results suggest that high levels of TF exposed upon plaque rupture trigger atherothrombosis. Inhibition of TF would be expected to reduce thrombosis associated with a variety of diseases. TF pathway is a potential target for new therapeutic agents that can decrease TF activity, such as active site-inactivated factor VIIa, recombinant TF inhibitor and antibodies against TF or peptides interfering with TF-FVIIa complex activity. Significant clinical forms of atherosclerosis, such as sudden death, myocardial infarction, and stroke have common pathogenesis. The occlusion of the vessel lumen is the result from atherosclerotic plaque rupture/erosion that initiate thrombus formation. This thrombus has complex structure and contains predominantly fibrin in addition to platelets, suggesting an important role for the coagulation cascade in plaque thrombus formation. Tissue factor (TF) is known to be the key element in the initiation of the extrinsic pathway of the coagulation cascade and appears to be a critical determinant of atherosclerotic plaque thrombogenicity. PMID:25312727

Saha, D; S, Saha; Sergeeva, E G; Ionova, Z I; Gorbach, A V

2015-01-01

366

Capacidad de pago de los usuarios del sistema UPAC  

Microsoft Academic Search

Desde su creación en 1972, el sistema UPAC ha generado grandes controversias, en algunas ocasiones sustentadas en hechos económico-financieros, en otras basadas en posiciones y creencias personales, y en otras fundamentadas en situaciones de las corporaciones de ahorro y vivienda o de los usuarios. Esto ha originado una gran polarización de conceptos y opiniones que obligan a revisar en detalle

Rodrigo Varela Villegas; Royman Ricardo Cañón López; Carlos M. Restrepo

1998-01-01

367

La acrilamida en los alimentos y el riesgo de cáncer  

Cancer.gov

Hoja informativa que examina las investigaciones sobre una posible conexión entre la acrilamida en los alimentos y el riesgo de cáncer. La acrilamida es una sustancia química que se encuentra en ciertos alimentos, a niveles especialmente altos en papitas fritas, papas a la francesa y en otros alimentos que se cocinan a temperaturas altas.

368

University of California, Los Angeles Environment, Health and Safety  

E-print Network

1 University of California, Los Angeles Environment, Health and Safety Handbook for Employees......................................... 12 Follow-up Reporting of Accidents or Incidents... 14 Earthquake Safety at WWW.EHS.UCLA.EDU. You should become familiar with the information on fire and earthquake safety

Jalali. Bahram

369

PROTECCIÓN A LOS MENORES EN LA LEGISLACIÓN CUBANA  

Microsoft Academic Search

El tratamiento a la niñez y la adolescencia a escala internacional necesitan más que protección jurídica, atención especial de los Estados y en el caso específico de Cuba esta protección está garantizada, siendo prioridad del Estado revolucionario el desarrollo integral y multifacético de nuestros Niños, Niñas y Adolescentes. La protección jurídica que en el caso de Cuba se da a

Xiomara Cabrera Cabrera

2012-01-01

370

Mercury: The Los Alamos ICF KrF laser system  

SciTech Connect

The Mercury KrF laser facility at Los Alamos is being built with the benefit of lessons learned from the Aurora system. An increased understanding of KrF laser engineering, and the designed implementation of system flexibility, will permit Mercury to serve as a tested for a variety of advanced KrF technology concepts.

Czuchlewski, S.J.; York, G.W.; Bigio, I.J.; Brucker, J.; Hanson, D.; Honig, E.M.; Kurnit, N.; Leland, W.; McCown, A.W.; McLeod, J.; Rose, E.; Thomas, S.; Thompson, D.

1993-01-19

371

Los Alamos catalyst could jumpstart e-cars, green energy  

E-print Network

for practical use of wind- and solar-powered electricity, as well as enhanced hybrid electric vehicles- 1 - Los Alamos catalyst could jumpstart e- cars, green energy June 4, 2013 Economical non for efficient storage of electrical energy. #12;- 2 - The new catalyst doesn't use precious metals

372

Scientists at BNL and Los Alamos National Laboratory (LANL) have  

E-print Network

the Bulletin Scientists at BNL and Los Alamos National Laboratory (LANL) have fabricated/pubaf/pr/PR_display. asp?prID=1232. Unique New Probe of Proton Spin Structure at RHIC Direct measurements allow detailed scientists is available at www.bnl.gov/today/story.asp?ITEM_NO=2203. Huilin Li, Man of the Year in Health

373

Urban America: Policy Choices for Los Angeles and the Nation.  

ERIC Educational Resources Information Center

This volume presents 13 essays on urban problems in the United States, particularly in Los Angeles (California) following the 1992 riots, and policy options for the future. Part 1 addresses policies of the past three decades; Part 2 looks at children, youth, and families; Part 3 discusses crime and criminal justice; and Part 4 examines public…

Steinberg, James B., Ed.; And Others

374

The Los Angeles Community College District Crisis, 1981-1987.  

ERIC Educational Resources Information Center

This document describes a crisis in enrollment, funding, and governance that occurred in the Los Angeles Community College District (LACCD) between 1981 and 1987. Following introductory materials, chapter 1 reviews the history of the LACCD and the effect of funding reductions caused by 1978's Proposition 13. The next two chapters review the…

Erickson, Lowell Janes

375

Las personas con diabetes deben lograr un balance entre los  

E-print Network

en un lado del plato y los alimentos bajos en carbohidratos al otro lado. Karen Halderson, MPH, RD bajos en carbohidratos, manteniendo cada uno en su propio lado del plato o de la mesa. Comer vegetales en diferentes lados de su plato y ver si su plato está "balanceado". Sin embargo, muchas veces

376

Sources of crime guns in Los Angeles, California  

Microsoft Academic Search

There is agreement in the literature that offenders often acquire guns through unregulated private encounters with friends, family members and petty criminals. Although anecdotes suggest that licensed gun dealers also play a role, most studies have ignored or discounted the possibility that dishonest retailers are a significant source of supply. This effort explores gun markets in Los Angeles by examining

Julius Wachtel

1998-01-01

377

Post-Cold War Science and Technology at Los Alamos  

Microsoft Academic Search

Los Alamos National Laboratory serves the nation through the development and application of leading-edge science and technology in support of national security. Our mission supports national security by: ensuring the safety, security, and reliability of the U.S. nuclear stockpile; reducing the threat of weapons of mass destruction in support of counter terrorism and homeland defense; and solving national energy, environment,

John C. Browne

2002-01-01

378

Instructional Practices in Los Angeles Universal Preschool. Final Report  

ERIC Educational Resources Information Center

As part of Phase 3 of the Universal Preschool Child Outcomes Study (UPCOS-3), Mathematica Policy Research worked with the First 5 LA Children and Families Commission and Los Angeles Universal Preschool (LAUP) to conduct a descriptive study of the characteristics of classrooms in LAUP programs during winter 2010. This study has a particular focus…

Atkins-Burnett, Sally; Xue, Yange; Kopack, Ashley; Induni, Marta; Moiduddin, Emily

2010-01-01

379

Performance of masonry structures during the 1994 Northridge (Los Angeles)  

E-print Network

Performance of masonry structures during the 1994 Northridge (Los Angeles) earthquake Michel of a concerted multi-paper reporting effort, concentrates on the damage suffered by masonry buildings during masonry construction similar to that commonly found in Canada is reviewed, but a particular emphasis

Bruneau, Michel

380

Arts in Focus: Los Angeles Countywide Arts Education Survey.  

ERIC Educational Resources Information Center

This report baseline study information about the state of arts education in Los Angeles County, California, the most populous county in the United States. Students in the districts covered in this survey represent 27% of all students enrolled in California public schools (K-12) and 3.4% of all students enrolled in U.S. public schools. The survey's…

2001

381

PROPUESTAS DE COMPETENCIAS INFORMACIONALES PARA LOS DIRECTIVOS DEL SECTOR TURÍSTICO  

Microsoft Academic Search

Las circunstancias que caracterizan el ambiente de negocios actual, que pueden resumirse en la internacionalización y la globalización de los mercados, junto con el pleno desarrollo de la denominada Sociedad de la Información y el Conocimiento, han obligado a las empresas a mejorar su competitividad, entendida como tal, la superioridad o mejoría respecto a otro, determinada por cómo somos percibidos

Belkis Pérez García; Idanis M. Pedroso Borrero; Yoryana García Rosario

2011-01-01

382

Imaginacion e identidad: los personajes de Juan Tovar  

E-print Network

em- bargo, su produccion literaria no ha cesado en los ulti- mos anos. Tovar dice que durante la epoca posterior a El lu ar del corazon empezo a tener muchos suenos, suenos que encajaban "de una manera extrana con la vida real. Enton- ces queria...

Dennis, Susan Michele

1983-01-01

383

Reconstructing Los Angeles Magnet Schools: Representations in Newspapers  

ERIC Educational Resources Information Center

This article is a study of the social construction of school desegregation in Los Angeles, California. Particular emphasis is placed on how magnet schools were presented to area residents in the local press over a period of 3 decades. I use quantitative and qualitative techniques with 355 newspaper articles. I find that magnet schools were…

McAuliffe Straus, Ryane

2004-01-01

384

The Science Curriculum in the Los Angeles Community College District.  

ERIC Educational Resources Information Center

The 1979-1980 class schedules for the nine institutions within the Los Angeles Community College District were examined to document the number and variety of courses offered by the colleges in six areas of science: agriculture, biological sciences, engineering sciences and technology, mathematics and computer science, physical sciences, and social…

Friedlander, Jack; Sillman, Donna

385

Asthma and air pollution in the Los Angeles area  

Microsoft Academic Search

Daily asthma attack diaries of 16 panels of asthmatics residing in the Los Angeles area were collected by the Environmental Protection Agency for 34-week periods during the years 1972 to 1975. These data are examined here for the relationship between daily attack occurrence and daily levels of photochemical oxidant, total suspended particulates, minimum temperature, relative humidity, and average wind speed.

A. S. Whittemore; E. L. Korn

1980-01-01

386

Spatial Analysis of Air Pollution and Mortality in Los Angeles  

Microsoft Academic Search

Background: The assessment of air pollution exposure using only community average concentrations may lead to measurement error that lowers estimates of the health burden attributable to poor air quality. To test this hypothesis, we modeled the association between air pollution and mortality using small-area exposure measures in Los Angeles, California. Methods: Data on 22,905 subjects were extracted from the Amer-

Michael Jerrett; Richard T. Burnett; Renjun Ma; C Arden Pope; Daniel Krewski; K Bruce Newbold; George Thurston; Yuanli Shi; Norm Finkelstein; Eugenia E. Calle; Michael J. Thun

2005-01-01

387

Brief history of the Los Alamos laser programs  

SciTech Connect

The laser programs at Los Alamos began in 1969 to investigate the feasibility of laser-induced fusion. However, within a year they had been expanded to include a number of other applications including laser isotope separation. These programs now compose a substantial part of the Laboratory's research programs.

Boyer, K.

1983-01-01

388

Deterministic charged-particle transport at Los Alamos: a survey  

SciTech Connect

A review of the application of S/sub n/ and diffusion to the transport of alpha particles and super-thermal electrons at Los Alamos is given. Emphasis is on solution techniques and numerical subtleties with numerous comparisons to analytic and Monte Carlo solutions.

Taggart, K.; Linnebur, E.; Wienke, B.; Cranfill, C.; Dana, A.

1982-01-01

389

Los Angeles City College Credit Manual. Revision, Spring 1975.  

ERIC Educational Resources Information Center

This manual lists regulations and practices governing credit procedures at Los Angeles City College (California). Grading practices and record updating procedures are covered, including credit by examination, credit/no credit grading, credit on early military withdrawal, course repetition, course duplication, incompletes, and credit transfer. The…

Los Angeles City Coll., CA.

390

Working with Fermi at Chicago and Los Alamos  

NASA Astrophysics Data System (ADS)

I discuss my experience with Enrico Fermi as student and fellow faculty member at Chicago and with him as consultants to the Los Alamos Scientific Laboratory in 1950-1952. The talk shares observations about this great physicist and exemplary human being. )

Garwin, Richard L.

2010-02-01

391

BROWN Y FERNNDEZ, Heliconiini de Venezuela Los Heliconiini (Lepidoptera, Nymphalidae)  

E-print Network

BROWN Y FERNÁNDEZ, Heliconiini de Venezuela 29 Los Heliconiini (Lepidoptera, Nymphalidae) de Venezuela KEITH S. BROWN, JR.* Y F. FERNÁNDEZ Y�PEZ** RESUMEN Se ilustran y presentan datos sobre variación, distribución y biología de las 42 especies y 88 subespecies de Heliconiini conocidas de Venezuela, con

Mallet, James

392

Limnology of Crater Lakes in Los Tuxtlas, Mexico  

Microsoft Academic Search

The purpose of this study was to characterize five crater lakes in Los Tuxtlas, Mexico, on the basis of morphological, physical, chemical, and biological features. A bathymetric map of each lake was obtained and morphometric parameters were calculated. Physical and chemical parameters (temperature, transparency, nutrients, pH, conductivity, cations) and chlorophyll a were measured for three periods: the cold season (January),

Gabriela Vázquez; Mario E. Favila; Ricardo Madrigal; Carlos Montes del Olmo; Angel Baltanás; Miguel Angel Bravo

2004-01-01

393

Decontamination of concrete surfaces at the Los Alamos Scientific Laboratory  

Microsoft Academic Search

For the past two years the Los Alamos Scientific Laboratory has been engaged in decontaminating its former plutonium facility. The facility was in use for over 30 years for plutonium operations varying from dry metallurgical processes to wet (solution) recovery processes. To date approximately 3400 square meters of floor surface have been decontaminated to permit re-use for nonplutonium work. Approximately

E. J. Cox; R. Garde

1980-01-01

394

Brief review of Rover fuel development at Los Alamos  

NASA Technical Reports Server (NTRS)

A brief review of the graphite matrix uranium fuel development efforts at Los Alamos from 1955 through 1972 is presented. The uses of graphite flour carbon black, various binders, uranium dioxide, coated UC2 particles, and zirconium carbide in this development are described.

Davidson, Keith V.

1991-01-01

395

Teatro boliviano en la década de los 90  

E-print Network

numerosos elencos jóvenes que se han formado en los últimos años, como Gruta de Macondo y Teatro Duende, todavía no han perfeccionado el arte que profesan ni han encontrado su propia voz. Asimismo, Juan Claudio Lechín, un dramaturgo que hizo su debut...

Muñ oz, Willy O.

2000-10-01

396

The Los Alamos nuclear safeguards and nonproliferation technology development program  

SciTech Connect

For nearly three decades, Los Alamos National Laboratory has developed and implemented nuclear measurement technology and training in support of national and international nuclear safeguards. This paper outlines the major elements of those technologies and highlights some of the latest developments.

Smith, H.A. Jr.; Menlove, H.O.; Reilly, T.D.; Bosler, G.E.; Hakkila, E.A.; Eccleston, G.W.

1994-04-01

397

Lifestyles and transportation needs of the elderly in Los Angeles  

Microsoft Academic Search

This study examined the trip-making behavior of persons over 65 years of age residing in Los Angeles County. To date, the major shortcoming of most research concerned with the transportation needs of the elderly is that the aged have been treated as a homogeneous group without recognizing the various lifestyles of the senior population. The two most easily distinguishable groups

Jacqueline Gillan; Martin Wachs

1976-01-01

398

Resource management technology: Los Alamos technical capabilities for emergency management  

SciTech Connect

This report examines FEMA mission requirements in the area of resource and emergency management. It reviews the experience of the Los Alamos National Laboratory in resource management technology consonant with FEMA's mission. This experience is presented in the form of internal appraisal of the following mission areas: Strategic Materials; Natural and Technological Disasters; Communications and Training; and Counterterrorism.

Killian, B.G.; Garner, S.D.; Mathews, K.L.; Wilson, M.G.; Planner, H.M.

1983-07-18

399

New directions in physics. The Los Alamos 40th anniversary  

Microsoft Academic Search

In 1983 the outstanding scientists gathered in Los Alamos to celebrate the 40th anniversary of the laboratory. This volume contains the papers presented in that meeting. It presents many of the important advances made in physics over the intervening forty years and provides an idea of the possibilities for the future. Among the contributors are eight Nobel Laureates. The contents

D. M. Kerr; G. C. Rota

1987-01-01

400

Recogido de Datos Pblicos: Gua para los Lmites Anuales de  

E-print Network

Recogido de Datos Públicos: Guía para los Límites Anuales de Captura (ACLs) y Medidas de;3 Límites Anuales de Captura (ACLs) y Medidas de Responsabilidad (AMs) · ACLs y AMs funcionan en conjunto como un sistema para asegurar que no ocurra sobrepesca · ACLs y AMs deberán: ­ Terminar la sobrepesca

401

El discurso de la memoria teatral peruana en los noventa  

E-print Network

juveniles en el prolífico teatro urbano-rural; la edición de obras y antologías dramáticas, dentro y fuera del Perú; la difusión de información teatral en el "Internet- WEB"por medio de "La página de los dramaturgos peruanos" de César de María y "La...

Ramos-Garcí a, Luis A.

2000-10-01

402

A Vision for the Los Angeles Community College District.  

ERIC Educational Resources Information Center

The "Vision Statement" brochure by the Chancellor of the Los Angeles Community College District (LACCD) "sets forth the path and direction he wants the District's nine community colleges to take in preparing students for the challenges of the 21st century" and emphasizes that the district will stimulate and assure a learning environment where…

Phelps, Donald G.

403

Annual Information Digest: Los Angeles Community Colleges, 1987-88.  

ERIC Educational Resources Information Center

This statistical digest provides 1987-88 information on the enrollments, students, programs and services, finances, and personnel resources of the Los Angeles Community College District's (LACCD's) nine campuses. Following a glossary of terms, the report provides an overview of major findings. These include the following: (1) an estimated 4.6…

Los Angeles Community Coll. District, CA. Div. of Educational Planning and Development.

404

Designing More Efficient Markets: Lessons from Los Angeles Smog Control  

Microsoft Academic Search

Market-based approaches for environmental protection are beginning to take root around the world. This article attempts to improve our understanding of the performance of environmental markets by constructing and evaluating an information base on trades in Los Angeles, which includes the first detailed data on trading prices. The analysis suggests that trading activity has been shaped by the detailed regulations

Vivien Foster; Robert W. Hahn

1995-01-01

405

Hydrocarbon involvement in photochemical smog formation in Los Angeles atmosphere  

Microsoft Academic Search

The extensive chemical and physical measurements of the Los Angeles Reactive Pollutant Program (LARPP), made during one day of the studies, November 5, 1973, are analyzed to test current theories of hydrocarbon involvement in photochemical smog formation. It is noted that the ratio of the concentration of a reactive hydrocarbon to that for acetylene decreases regularly throughout the day. Indirect

Jack G. Calvert

1976-01-01

406

Drop Out Patterns in the East Los Angeles Community College  

ERIC Educational Resources Information Center

This study attempted to analyze the drop out problem from spatial perspectives within the context of East Los Angeles Community College, California. Selected urban land-use types, which positively and negatively influence the propensity to drop out or persist-in colleges, were selected and captured during a global positioning system (GPS)-based…

Waktola, Daniel K.

2014-01-01

407

LOS ANGELES FIELD MODELING AND MEASUREMENT STUDY - 1978 (SECOND YEAR)  

EPA Science Inventory

An instrumented van was used to collect size-segregated aerosol samples and measure sulfur dioxide and ammonia concentrations on the heavily-traveled Ventura Freeway in Los Angeles while a nearby identical van in radio contact sampled upwind. Measurements were made on a few unusu...

408

Why Los Alamos? Quality of life makes town "Best Of"  

E-print Network

are plentiful with endless hiking and biking trails, an aquatic facility where many Olympic hopefuls train in 2006. But many residents call Los Alamos home because of its slower pace, low levels of crime, noise. With entrepreneurial and cutting edge science opportunities rare in towns so far from major urban centers, the real

409

Julio de 2012 Predecir los brotes de dengue  

E-print Network

veranos cálidos o húmedos. Transmitido por mosquitos del tipo Aedes, el virus del dengue afecta a unosN° 410 Julio de 2012 Predecir los brotes de dengue en función del clima Scientific news Actualidad cientifica Actualité scientifique Transmitido principalmente por el mosquito Aedes aegypti, el dengue está

410

Los Alamos National Laboratory begins pumping tests on chromium plume  

E-print Network

- 1 - Los Alamos National Laboratory begins pumping tests on chromium plume May 22, 2013 Data a chromium plume in the regional aquifer. The purpose of the pumping tests is to refine understanding to remove chromium. Chromium concentrations in the plume exceed state and federal standards for groundwater

411

Anlisis para generar una teora fundamentada en los datos  

E-print Network

descubierto. Actividades: Nombrar Relacionar Integrar Schatzman y Strauss 73; Strauss y Corbin 98 #12 Selectiva: Integrar y refinar categorías Corbin 86; Strauss 87; Strauss y Corbin 1998 #12;Tipos de Códigos agrupan en un orden superior, de una manera más abstracta que los conceptos. Corbin 86; Strauss y Corbin

Escolano, Francisco

412

Diet and colon cancer in Los Angeles County, California  

Microsoft Academic Search

The diets of 746 colon cancer cases in Los Angeles County, California (USA) were compared with those of 746 controls matched on age, sex, race, and neighborhood. In both genders, total energy intake was associated with significantly increased risk, and calcium intake was associated with significantly decreased risk. These effects were reduced only slightly after adjustment for the nondietary risk

Ruth K. Peters; Malcolm C. Pike; David Garabrant; Thomas M. Mack

1992-01-01

413

Los Angeles Community College District Annual Report, 1993.  

ERIC Educational Resources Information Center

This 1993 annual report provides information on student demographics, college programs, and educational finances in the Los Angeles Community College District (LACCD), which, with more than 117,000 students, is the largest community college district in the nation. The report begins with a statement from Donald Phelps, the outgoing chancellor of…

Los Angeles Community Coll. District, CA.

414

Measures of Immigrant Integration in Los Angeles County  

E-print Network

. Los Angeles County is well known as a foremost destination for immigrants to the United States. 1 close to that of whites. Poverty · Each immigrant cohort saw its poverty rate fall dramatically between 1990 and 2006­2008, even while poverty among the white native-born comparison group rose. Thus

Rohs, Remo

415

21. Photocopy of original photo from Corps of Engineers, Los ...  

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

21. Photocopy of original photo from Corps of Engineers, Los Angeles District, 'Report on Salinas Dam, Salinas River, California,' June 15, 1943. (Photographer unknown; report located at City of San Luis Obispo.) SALINAS DAM UNDER CONSTRUCTION IN 1941. - Salinas Dam, Salinas River near Pozo Road, Santa Margarita, San Luis Obispo County, CA

416

24. Photocopy of original photo from Corps of Engineers, Los ...  

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

24. Photocopy of original photo from Corps of Engineers, Los Angeles District, 'Report on Salinas Dam, Salinas River, California,' June 15, 1943. (Photographer unknown, report located at City of San Luis Obispo.) SALINAS DAM COMPLETION PHOTO. - Salinas Dam, Salinas River near Pozo Road, Santa Margarita, San Luis Obispo County, CA

417

23. Photocopy of original photo from Corps of Engineers, Los ...  

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

23. Photocopy of original photo from Corps of Engineers, Los Angeles District, 'Report on Salinas Dam, Salinas River, California,' June 15, 1943. (Photographer unknown; report located at City of San Luis Obispo.) CONSTRUCTION PHOTO SHOWING CURVED CONCRETE CHUTE SPILLWAY. - Salinas Dam, Salinas River near Pozo Road, Santa Margarita, San Luis Obispo County, CA

418

22. Photocopy of original photo from Corps of Engineers, Los ...  

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

22. Photocopy of original photo from Corps of Engineers, Los Angeles District, 'Report on Salinas Dam, Salinas River, California,' June 15, 1943. (Photographer unknown; report located at City of San Luis Obispo.) CONSTRUCTION PHOTO SHOWING THE STRUTS, POURED TO ALIGN WITH THE RIGHT (WEST) BUTTRESS. - Salinas Dam, Salinas River near Pozo Road, Santa Margarita, San Luis Obispo County, CA

419

Los Alamos free atomic tritium beta decay experiment  

SciTech Connect

An apparatus is under construction at Los Alamos to measure the beta spectrum of free tritium atoms and molecules. The tritium atoms decay in a gaseous windowless source and are analyzed by a Tret'yakov type toroidal field beta spectrometer. The ultimate sensitivity of the experiment to electron antineutrino mass is expected to be <10 eV.

Knapp, D.A.; Bowles, T.J.; Browne, J.C.; Burritt, T.H.; Cohen, J.S.; Helffrich, J.A.; Maley, M.P.; Martin, R.L.; Robertson, R.G.H.; Wilkerson, J.F.

1984-01-01

420

Dia de los Muertos: An Illustrated Essay and Bibliography.  

ERIC Educational Resources Information Center

Among Mexico's most original traditions is the holiday dedicated to honoring the dead, Dia de los Muertos, November 2. This tradition combines aspects that define the national spirit. At the same time that it is a solemn festivity to remember the dead, it becomes a fiesta in its own right. Death, more than a thing to be feared, becomes the motif…

California Univ., Santa Barbara. University Library.

421

[Los Alamos National Laboratory industrial applications and technology transfer  

SciTech Connect

In October 1989, the Los Alamos Economic Development Corporation (LAEDC) entered into a contract with the Industrial Applications office (IAO) of Los Alamos National Laboratory (LANL) whereby the LAEDC was to provide support services to IAO. More specifically, according to the Statement of Work in this contract The Los Alamos Economic Development Corporation shall assist the Los Alamos National Laboratory Industrial Applications Office in establishing and strengthening connections between potential entrepreneurs at the Laboratory and the business assistance community throughout New Mexico, directed toward enhancing the number, of successful start up businesses spinning off the Laboratory's technology base.'' As part of this contract and subsequent modifications thereof, the LAEDC was to perform seven tasks: 1. Provide business planning assistance to potential entrepreneurs. 2. (Assist IAO in preparing and distributing) informational materials on technology transfer. 3. (Organize and manage) meetings and seminars on technology transfer and entrepreneurship. 4. Identify new opportunities for technology transfer. 5. (Identify and implement programs for the) recognition of Laboratory Entrepreneurs. 6. Training Lab personnel, in the area of technology transfer and Laboratory industrial interactions. 7. Review and summarize prior New Mexico economic development studies. The purpose of this report, is to summarize the accomplishments of the LAEDC under its contract with IAO, and to fulfill its reporting requirements. This report covers the period from October 1989 to September 1992.

Not Available

1992-09-30

422

Upward Bound/Los Angeles County Probation Department Program Report.  

ERIC Educational Resources Information Center

During the summer of 1969, 16 youths from the Los Angeles County Probation Department's facilities participated in the Upward Bound program at the Claremont colleges together with 60 other students from surrounding communities. This program was established to provide the probation department with information useful in establishing similar joint…

Burke, David

423

American Indian Voluntary Associations in Greater Los Angeles: An Overview.  

ERIC Educational Resources Information Center

With its large and heterogeneous Indian population, the Los Angeles area offers an excellent opportunity to study patterns in the origin, growth, and structure of Indian voluntary associations, and the leisure time institutions. Since the 1920's more than 100 Indian voluntary associations formed in the area. Established groups influenced the…

Bramstedt, Wayne

424

Tiny Cross Causes a Stir in Los Angeles  

NSDL National Science Digital Library

The City of Angels may be bracing for another dramatic event and, oddly enough, it may have nothing to do with the climatic conditions in that region of the country. Recently the local chapter of the American Civil Liberties Union (ACLU) announced that it would sue Los Angeles County unless the governmental entity comes up with a plan within 14 days to remove a tiny cross from the County's official seal. The seal (which has been in use for 47 years) features the goddess Pomona holding various agricultural products grown in the county, along with symbols of the area's dairy, fishing, aerospace and oil industries. According to the county's website the tiny cross on the seal represents "the influence of the church and the missions of California." In a letter to the Los Angeles County board of supervisors, the executive director of the ACLU of Southern California noted: "When the County transmitted its newly designed seal to the California Secretary of State on February 27, 1957, the transmittal letter stated in plain language that the cross was included to represent religion." Responding to this letter, County Supervisors Michael Antonvich and Don Knabe announced that "Our history cannot be rewritten and it will not be rewritten," and went on to remark that the demand to remove the cross from the seal was "right out of a George Orwell novel." The first link will take users to a news piece about the recent letter sent by the ACLU regarding the cross on the Los Angeles County seal offered by the Los Angeles Daily News. The second link leads to a like-minded piece offered by the Los Angeles Times [Free registration required] that discusses the reaction to the letter from the Board of Supervisors. The third link leads to a pointed editorial offered by the Los Angeles Daily News this past Tuesday. The fourth link leads to a webpage provided by Los Angeles County that explains the iconography and symbols used on the official seal. The fifth link leads to the religious liberty area of the ACLU website, which describes the various issues that the organization provides legal consultation and aid to, such as school prayer, religious freedom, and the use and placement of the Ten Commandments. The sixth and final link leads to the homepage of the Pew Forum on Religion & Public Life, where visitors can browse their publications, read news about various ongoing stories that address the broad topic of religion and public life, and read transcripts of events and discussions sponsored by the Forum.

425

Site response for urban Los Angeles using aftershocks of the Northridge earthquake  

USGS Publications Warehouse

Ground-motion records from aftershocks of the 1994 Northridge earthquake are used to estimate site response in the urban Los Angeles area. Over 1300 shear-wave records from 61 sources and 90 sites are used in a linear inversion for source and site-response spectra. The methodology makes no assumptions about the shape of the source spectrum. To obtain a stable unique inverse, a Q model and geometrical spreading factor are assumed. In addition, the site response at a hardrock site is constrained to be approximately 1.0 with a kappa of 0.02. The site-response spectra compare favorably with the results of previous and on-going investigations in Los Angeles. A couple of first-order effects are lower site response in the surrounding mountains, dominated by Mesozoic and Tertiary rocks, and higher values in the San Fernando and Los Angeles Basins, containing surficial Pleistocene and Holocene alluvial deposits. Results show good correlation of high site-response spectral values with localized areas of severe damage (Interstate 10 collapse, Sherman Oaks, Northridge, Interstate 5/14 collapse). However, widespread trends in site response across the sedimentary basins are not obvious. The data suggest that site responses are lower near the southern margin of the San Fernando Valley for sources to the north, due to north-dipping sedimentary structures. But the general pattern of site response is characterized by high variability on length scales less than a kilometer. Variations of a factor of 2 in site response are observed over the length scale of 200 m and for the same surficial geologic unit. For some of the alluvial basin sites, surface-wave generation is a significant contributor to elevated site response at lower frequencies, below 2 Hz. The total damage pattern for the Northridge earthquake is influenced by strong source directivity to the north and strong local site effects. The correlation of weak-motion site-response estimates with areas of significant damage demonstrates the value of these field measurements in future urban planning and in the reduction of seismic risk in urban areas.

Hartzell, S.; Leeds, A.; Frankel, A.; Michael, J.

1996-01-01

426

Neurotrophic factors and neurologic disease.  

PubMed Central

Discovered only 40 years ago, nerve growth factor is the prototypic neurotrophic factor. By binding to specific receptors on certain neurons in the peripheral nervous system and brain, nerve growth factor acts to enhance their survival, differentiation, and maintenance. In recent years, many additional neurotrophic factors have been discovered; some are structurally related to nerve growth factor while others are distinct from it. The robust actions of neurotrophic factors have suggested their use in preventing or lessening the dysfunction and death of neurons in neurologic disorders. We review the progress in defining neurotrophic factors and their receptors and in characterizing their actions. We also discuss some of the uses of neurotrophic factors in animal models of disease. Finally, we discuss how neurotrophic factors could be implicated in the pathogenesis of neurologic disorders. Images PMID:7975562

Holtzman, D M; Mobley, W C

1994-01-01

427

Neutron quality factor  

SciTech Connect

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).

NONE

1995-06-01

428

DIABETES MELLITUS COMO FACTOR DE RIESGO DE DEMENCIA EN LA POBLACIÓN ADULTA MAYOR MEXICANA  

PubMed Central

Introduccion La diabetes mellitus y las demencias constituyen dos problemas crecientes de salud entre la población adulta mayor del mundo y en particular de los paises en desarrollo. Hacen falta estudios longitudinales sobre el papel de la diabetes como factor de riesgo para demencia. Objetivo Determinar el riesgo de demencia en sujetos Mexicanos con diabetes mellitus tipo 2. Materiales y Metodos Los sujetos diabéticos libres de demencia pertenecientes al Estudio Nacional de Salud y Envejecimiento en México fueron evaluados a los dos años de la línea de base. Se estudió el papel de los factores sociodemográficos, de otras comorbilidades y del tipo de tratamiento en la conversión a demencia. Resultados Durante la línea de base 749 sujetos (13.8%) tuvieron diabetes. El riesgo de desarrollar demencia en estos individuos fue el doble (RR, 2.08 IC 95%, 1.59–2.73). Se encontró un riesgo mayor en individuos de 80 años y más (RR 2.44 IC 95%, 1.46–4.08), en los hombres (RR, 2.25 IC 95%, 1.46–3.49) y en sujetos con nivel educativo menor de 7 años. El estar bajo tratamiento con insulina incrementó el riesgo de demencia (RR, 2.83, IC 95%, 1.58–5.06). Las otras comorbilidades que aumentaron el riesgo de demencia en los pacientes diabéticos fueron la hipertensión (RR, 2.75, IC 95%, 1.86–4.06) y la depresión (RR, 3.78, 95% IC 2.37–6.04). Conclusión Los sujetos con diabetes mellitus tienen un riesgo mayor de desarrollar demencia, La baja escolaridad y otras comorbilidades altamente prevalentes en la población Mexicana contribuyen a la asociación diabetes-demencia. PMID:21948010

Silvia, Mejía-Arango; Clemente, y Zúñiga-Gil

2012-01-01

429

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.

2007-04-01

430

Stress intensity factors  

SciTech Connect

In this work the concept of the stress intensity factor, the underlying mechanics problem leading to its emergence, and its physical relevance, particularly its relation to fracture mechanics are discussed. The reasons as to why it has become nearly an indispensable tool for studying such important phenomena as brittle fracture and fatigue or corrosion fatigue crack propagation in structural solids are considered. A brief discussion of some of the important methods of solution of elastic crack problems is given. Also, a number of related special mechanics problems are described. 24 references.

Erdogan, F.

1983-12-01

431

The "impact factor" revisited  

PubMed Central

The number of scientific journals has become so large that individuals, institutions and institutional libraries cannot completely store their physical content. In order to prioritize the choice of quality information sources, librarians and scientists are in need of reliable decision aids. The "impact factor" (IF) is the most commonly used assessment aid for deciding which journals should receive a scholarly submission or attention from research readership. It is also an often misunderstood tool. This narrative review explains how the IF is calculated, how bias is introduced into the calculation, which questions the IF can or cannot answer, and how different professional groups can benefit from IF use. PMID:16324222

Dong, Peng; Loh, Marie; Mondry, Adrian

2005-01-01

432

CIUDADANA MUNDIAL SIN ESTADO MUNDIAL: LA MUNDIALIZACIN DE LOS MOVIMIENTOS SOCIALES Y LA RECONFIGURACIN DE SU RELACIN CON LOS ESTADOS  

E-print Network

un sinnúmero de Organizaciones No Gubernamentales (ONGs), movimientos sociales, redes transnacionalesCIUDADANÍA MUNDIAL SIN ESTADO MUNDIAL: LA MUNDIALIZACI�N DE LOS MOVIMIENTOS SOCIALES Y LA estados es en parte objetivo de este trabajo. Las organizaciones no gubernamentales y redes

Boyer, Edmond

433

NEPA and NHPA- successful decommissioning of historic Manhattan Project properties at Los Alamos National Laboratory, Los Alamos, New Mexico  

Microsoft Academic Search

This paper describes experiences at Los Alamos National Laboratory during the process of planning and executing decommissioning and decontamination activities on a number of properties constructed as part of the Manhattan project. Many of these buildings had been abandoned for many years and were in deteriorating condition, in addition to being contaminated with asbestos, lead based paints and high explosive

E. D. McGehee; A. K. Pendergrass

1997-01-01

434

Factors in risk perception  

PubMed

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

Sjoberg

2000-02-01

435

[Crohn's disease - etiopathogenetic factors].  

PubMed

Crohn's disease is often purely inflammatory, but most patients develop complicated disease with strictures or fistulae. Specific etiopathogenesis of this severe disease is not definitely clear despite research efforts and learning of many pathogenetic mechanisms. Many studies have suggested that NOD2 mutations are associated with increased risk of complicated disease. Presence of NOD2 mutation itself is just one of factors contributing to development of this disease. Genetically predisposed individuals in combination with influence of environmental factors result in a disturbed innate (i.e., disturbed intestinal barrier, Paneth cell dysfunction) and adaptive (i.e., imbalance of effector and regulatory T cells and cytokines, migration and retention of leukocytes) immune response towards a diminished diversity of commensal microbiota. Data of meta-analysis made so far provide ambiguous evidence to support top-down therapy based solely on single NOD2 mutations, but suggest that targeted early-intensive therapy for high-risk patients with two NOD2 mutations might be beneficial, but more prospective trials could answer these questions. PMID:25130642

Kupka, Tomáš; Símová, Jarmila; Martínek, Lubomír; Svoboda, Pavel; Klva?a, Pavel; Bojková, Martina; Uvírová, Magdalena; Dovrt?lová, Lenka; Dít?, Petr

2014-01-01

436

SARSCEST (human factors)  

NASA Technical Reports Server (NTRS)

People interact with the processes and products of contemporary technology. Individuals are affected by these in various ways and individuals shape them. Such interactions come under the label 'human factors'. To expand the understanding of those to whom the term is relatively unfamiliar, its domain includes both an applied science and applications of knowledge. It means both research and development, with implications of research both for basic science and for development. It encompasses not only design and testing but also training and personnel requirements, even though some unwisely try to split these apart both by name and institutionally. The territory includes more than performance at work, though concentration on that aspect, epitomized in the derivation of the term ergonomics, has overshadowed human factors interest in interactions between technology and the home, health, safety, consumers, children and later life, the handicapped, sports and recreation education, and travel. Two aspects of technology considered most significant for work performance, systems and automation, and several approaches to these, are discussed.

Parsons, H. Mcilvaine

1988-01-01

437

Factors affecting growth factor activity in goat milk.  

PubMed

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

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

2006-06-01

438

Deseos de comunidad en el personaje intersticial y marginal: en la novela y el cine de los noventa en México  

E-print Network

y los estudios interdisciplinarios: Estudios Culturales, de Género, de Frontera y Estudios Poscoloniales. Los estudios teóricos de los noventa se enfocan principalmente en la perspectiva de género, las teorías de temática gay (queer), los..., proceso que Ferman le denomina “literaturización y desliteraturización” (xviii). Tanto los estudios de frontera como 31 los acercamientos feministas, y la conjugación interdisciplinaria de los estudios culturales y las teorías poscoloniales, que...

Moreno, Jose Antonio

2010-05-31

439

Modifiable Risk Factors Branch (MRFB)  

Cancer.gov

The Modifiable Risk Factors Branch (MRFB) focuses on factors to reduce cancer risk in humans, including exposures to nutritional components; physical activity and energy balance; alcohol and tobacco; and infectious, physical, and chemical agents.

440

Environmental factors and aggressive behavior  

SciTech Connect

This paper briefly reviews some of the research areas which indicate a correlation between environmental factors and initiation of aggressive behavior. Environmental factors including lunar influences, month of birth, climate and the effects of crowding and certain chemicals are discussed.

Anderson, A.C.

1982-07-01

441

Elderly Homeless Veterans in Los Angeles: Chronicity and Precipitants of Homelessness  

PubMed Central

Objectives. We compared the characteristics of chronically homeless and acutely homeless elderly veterans to better understand precipitants of homelessness. Methods. We conducted interviews with 33 chronically and 26 acutely homeless veterans aged 65 years and older receiving transitional housing services in Los Angeles, California, between 2003 and 2005. We asked questions regarding their sociodemographic characteristics and other social status measures. Other precipitants of homelessness were acquired via observation and open-ended and structured questions. Results. Both veterans groups were more similar than different, with substantial levels of physical, psychiatric, and social impairment. They differed significantly in homelessness history, with chronically homeless veterans having more homelessness episodes and more total time homeless. They were also less educated and had smaller social networks. In response to open-ended questioning, elderly homeless veterans revealed how health and substance use issues interacted with loss of social support and eviction to exacerbate homelessness. Conclusions. Assessment of a range of factors is needed to address risk factors and events leading to homelessness. Further research with larger samples is needed to confirm the characteristics and needs of the elderly homeless veteran population. PMID:24148059

van den Berk-Clark, Carissa; McGuire, James

2013-01-01

442

Viral Interferon Regulatory Factors  

PubMed Central

Upon viral infection, the major defensive strategy employed by the host immune system is the activation of the interferon (IFN)-mediated antiviral pathway, which is overseen by IFN regulatory factors (IRFs). In order to complete their life cycles, viruses must find a way to modulate the host IFN-mediated immune response. Kaposi's sarcoma-associated herpesvirus (KSHV), a human tumor-inducing herpesvirus, has developed a unique mechanism for antagonizing cellular IFN-mediated antiviral activity by incorporating viral homolog of the cellular IRFs, called vIRFs, into its genome. Here, we summarize the novel evasion mechanisms by which KSHV, through its vIRFs, circumvents IFN-mediated innate immune responses and deregulates the cell growth control mechanism. PMID:19715458

Kim, Myung Hee; Lee, Jong-Soo; Liang, Chengyu; Jung, Jae U.

2009-01-01

443

Unity power factor converter  

NASA Technical Reports Server (NTRS)

A unity power factor converter capable of effecting either inversion (dc-to-dc) or rectification (ac-to-dc), and capable of providing bilateral power control from a DC source (or load) through an AC transmission line to a DC load (or source) for power flow in either direction, is comprised of comparators for comparing the AC current i with an AC signal i.sub.ref (or its phase inversion) derived from the AC ports to generate control signals to operate a switch control circuit for high speed switching to shape the AC current waveform to a sine waveform, and synchronize it in phase and frequency with the AC voltage at the AC ports, by selectively switching the connections to a series inductor as required to increase or decrease the current i.

Wester, Gene W. (Inventor)

1980-01-01

444

Nucleon Electromagnetic Form Factors  

SciTech Connect

There has been much activity in the measurement of the elastic electromagnetic proton and neutron form factors in the last decade, and the quality of the data has greatly improved by performing double polarization experiments, in comparison with previous unpolarized data. Here we review the experimental data base in view of the new results for the proton, and neutron, obtained at JLab, MAMI, and MIT-Bates. The rapid evolution of phenomenological models triggered by these high-precision experiments will be discussed, including the recent progress in the determination of the valence quark generalized parton distributions of the nucleon, as well as the steady rate of improvements made in the lattice QCD calculations.

Marc Vanderhaeghen; Charles Perdrisat; Vina Punjabi

2007-10-01

445

Helicopter Human Factors  

NASA Technical Reports Server (NTRS)

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.

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

1995-01-01

446

The engineering institute of Los Alamos National Laboratory  

SciTech Connect

Los Alamos National Laboratory (LANL) and the University of California, San Diego (UCSD) have taken the unprecedented step of creating a collaborative, multi-disciplinary graduate education program and associated research agenda called the Engineering Institute. The mission of the Engineering Institute is to develop a comprehensive approach for conducting LANL mission-driven, multidisciplinary engineering research and to improve recruiting, revitalization, and retention of the current and future staff necessary to support the LANL' s national security responsibilities. The components of the Engineering Institute are (1) a joint LANL/UCSD degree program, (2) joint LANL/UCSD research projects, (3) the Los Alamos Dynamic Summer School, (4) an annual workshop, and (5) industry short courses. This program is a possible model for future industry/government interactions with university partners.

Farrar, Charles R [Los Alamos National Laboratory; Park, Gyuhae [Los Alamos National Laboratory; Cornwell, Phillip J [Los Alamos National Laboratory; Todd, Michael D [UCSD

2008-01-01

447

Changing Times: Los Angeles in Photographs, 1920-1990  

NSDL National Science Digital Library

From Raymond Chandler's hardboiled gumshoes to the decline and fall of the city's streetcar system, the City of Angels underwent a dramatic transformation from 1920 to 1990. This remarkable digital archive offered by the UCLA Charles E. Young Research Library Department of Special Collections brings together over 5700 photographs from that period. Culled from the Los Angeles Times and Los Angeles Daily News photographic archives of 3 million photographs, this collection covers topics that include religion, popular culture, urban development, law enforcement, and the entertainment industry. Visitors can browse through a list of subjects or search for specific items of interest by keyword. To get started, visitors may wish to search for "Bud Abbott", "Oil Wells", and "Urban renewal".

448

Penetrating radiation: applications at Los Alamos National Laboratory  

NASA Astrophysics Data System (ADS)

Los Alamos has used penetrating radiography extensively throughout its history dating back to the Manhattan Project where imaging dense, imploding objects was the subject of intense interest. This interest continues today as major facilities like DARHT1 have become the mainstay of the US Stockpile Stewardship Program2 and the cornerstone of nuclear weapons certification. Meanwhile, emerging threats to national security from cargo containers and improvised explosive devices (IEDs) have invigorated inspection efforts using muon tomography, and compact x-ray radiography. Additionally, unusual environmental threats, like those from underwater oil spills and nuclear power plant accidents, have caused renewed interest in fielding radiography in severe operating conditions. We review the history of penetrating radiography at Los Alamos and survey technologies as presently applied to these important problems.

Watson, Scott; Hunter, James; Morris, Christopher

2013-09-01

449

Decontamination of concrete surfaces at the Los Alamos Scientific Laboratory  

SciTech Connect

For the past two years the Los Alamos Scientific Laboratory has been engaged in decontaminating its former plutonium facility. The facility was in use for over 30 years for plutonium operations varying from dry metallurgical processes to wet (solution) recovery processes. To date approximately 3400 square meters of floor surface have been decontaminated to permit re-use for nonplutonium work. Approximately 330 square meters of concrete surfaces required scarifying the contamination after all other attempts such as detergents and acid solutions had proven ineffective. The uses of hand-held and floor type pneumatic scarifiers are described as well as an inexpensive but effective contamination containment chamber built at Los Alamos for use with the hand-held model. Contamination control, waste handling, manpower requirements, and cost are documented for the techniques used at LASL.

Cox, E.J.; Garde, R.

1980-01-01

450

Quantification of Emission Factor Uncertainty  

EPA Science Inventory

Emissions factors are important for estimating and characterizing emissions from sources of air pollution. There is no quantitative indication of uncertainty for these emission factors, most factors do not have an adequate data set to compute uncertainty, and it is very difficult...

451

Phonological Awareness: Factors of Influence  

ERIC Educational Resources Information Center

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,…

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

2013-01-01

452

Penalty Factors From Newton's Method  

Microsoft Academic Search

The penalty factors calculated by the classical B-coefficients method are shown to be proportional (but not equal) to the penalty factors calculated directly from the transposed acobian. It is also shown that the economic operating point is independent of the load and generation distribution factors Z. Expected computational times in examples with up to 5873 buses and 943 generators are

F. L. Alvarado

1978-01-01

453

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...

454

Factor Analysis via Components Analysis  

ERIC Educational Resources Information Center

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…

Bentler, Peter M.; de Leeuw, Jan

2011-01-01

455

Vector meson electromagnetic form factors  

E-print Network

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.

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

2006-11-23

456

Sample size in factor analysis  

Microsoft Academic Search

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.

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

1999-01-01

457

Automated medical information system of the Los Alamos Scientific Laboratory  

SciTech Connect

The Medical Information System (MIS) at the Los Alamos Scientific Laboratory automates the acquisition, storage, and retrieval of medical information concerning the nine thousand project-connected personnel. The MIS incorporates an on-line, interactive medical history questionnaire, mark sense form processing, and automated coronary risk assesment in the medical evaluation process. Also, MIS has created the ability for long-term study and comparison of employee health as well as made the physician's time more effective.

Eagan, G.D.; Grier, R.S.

1980-01-01

458

An elusive blind-thrust fault beneath metropolitan los angeles  

PubMed

Seismic reflection profiles, petroleum wells, and relocated earthquakes reveal the presence of an active blind-thrust fault beneath metropolitan Los Angeles. A segment of this fault likely caused the 1987 Whittier Narrows (magnitude 6.0) earthquake. Mapped sizes of other fault segments suggest that the system is capable of much larger (magnitude 6.5 to 7) and more destructive earthquakes. PMID:10066170

Shaw; Shearer

1999-03-01

459

Los Alamos x-ray characterization facilities for plasma diagnostics  

SciTech Connect

A summary is given of characteristics of x-ray sources used by Los Alamos National Laboratory to calibrate various x-ray diagnostic packages and components. Included are D.C. sourcs in electron impact and fluorescence modes, a pulsed laser source for soft x rays with 100 ps time resolution, Febetron pulsed electron impact sources, and both EUV and x-ray synchrotron beamlines.

Day, R.H.; Blake, R.L.; Stradling, G.L.; Trela, W.J.; Bartlett, R.J.

1986-01-01

460

INERTIAL CONFINEMENT FUSION RESEARCH AT LOS ALAMOS NATIONAL LABORATORY  

SciTech Connect

Inertial confinement fusion research at Los Alamos National Laboratory is focused on high-leverage areas of thermonuclear ignition to which LANL can apply its historic strengths and that are complementary to high-energy-density-physics topics. Using the Trident and Omega laser facilities, experiments are pursued in laser-plasma instabilities, symmetry, Be technologies, neutron and fusion-product diagnostics, and defect hydrodynamics.

Batha, S. H.; Albright, B. J.; Alexander, D. J.; Barnes, Cris W.; Bradley, P. A.; Cobble, J. A.; Cooley, J. C.; Cooley, J. H.; Day, R. D.; DeFriend, K. A.; Delamater, N. D.; Dodd, E. S.; Fatherley, V. E.; Fernandez, J. C.; Flippo, K. A.; Grim, G. P.; Goldman, S. R.; Greenfield, S. R.; Herrmann, H. W.; Hoffman, N. M. [Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)

2009-07-26

461

Inertial Confinement Fusion Research at LOS Alamos National Laboratory  

Microsoft Academic Search

Inertial confinement fusion research at Los Alamos National Laboratory is focused on high-leverage areas of thermonuclear ignition to which LANL can apply its historic strengths and that are complementary to high-energy-density-physics topics. Using the Trident and Omega laser facilities, experiments are pursued in laser-plasma instabilities, symmetry, Be technologies, neutron and fusion-product diagnostics, and defect hydrodynamics.

S. H. Batha; B. J. Albright; D. J. Alexander; Cris W. Barnes; P. A. Bradley; J. A. Cobble; J. C. Cooley; J. H. Cooley; R. D. Day; K. A. Defriend; N. D. Delamater; E. S. Dodd; V. E. Fatherley; J. C. Fernandez; K. A. Flippo; G. P. Grim; S. R. Goldman; S. R. Greenfield; H. W. Herrmann; N. M. Hoffman; R. L. Holmes; R. P. Johnson; P. A. Keiter; J. L. Kline; G. A. Kyrala; N. E. Lanier; E. Loomis; F. E. Lopez; S. Luo; J. M. Mack; G. R. Magelssen; D. S. Montgomery; A. Nobile; J. A. Oertel; P. Reardon; H. A. Rose; D. Schmidt; M. J. Schmitt; A. Seifter; T. Shimada; D. C. Swift; T. E. Tierney; L. Welser-Sherrill; M. D. Wilke; D. C. Wilson; J. Workman; L. Yin

2009-01-01

462

Inertial Confinement Fusion Research at LOS Alamos National Laboratory  

NASA Astrophysics Data System (ADS)

Inertial confinement fusion research at Los Alamos National Laboratory is focused on high-leverage areas of thermonuclear ignition to which LANL can apply its historic strengths and that are complementary to high-energy-density-physics topics. Using the Trident and Omega laser facilities, experiments are pursued in laser-plasma instabilities, symmetry, Be technologies, neutron and fusion-product diagnostics, and defect hydrodynamics.

Batha, S. H.; Albright, B. J.; Alexander, D. J.; Barnes, Cris W.; Bradley, P. A.; Cobble, J. A.; Cooley, J. C.; Cooley, J. H.; Day, R. D.; DeFriend, K. A.; Delamater, N. D.; Dodd, E. S.; Fatherley, V. E.; Fernandez, J. C.; Flippo, K. A.; Grim, G. P.; Goldman, S. R.; Greenfield, S. R.; Herrmann, H. W.; Hoffman, N. M.; Holmes, R. L.; Johnson, R. P.; Keiter, P. A.; Kline, J. L.; Kyrala, G. A.; Lanier, N. E.; Loomis, E.; Lopez, F. E.; Luo, S.; Mack, J. M.; Magelssen, G. R.; Montgomery, D. S.; Nobile, A.; Oertel, J. A.; Reardon, P.; Rose, H. A.; Schmidt, D.; Schmitt, M. J.; Seifter, A.; Shimada, T.; Swift, D. C.; Tierney, T. E.; Welser-Sherrill, L.; Wilke, M. D.; Wilson, D. C.; Workman, J.; Yin, L.

2009-07-01

463

[Los Alamos National Laboratory industrial applications and technology transfer  

SciTech Connect

This report summarizes the accomplishments of the Los Alamos Economic Development Corporation (LAEDC) under its contract with the Industrial Applications Office (IAO). The LAEDC has: provided business planning assistance to potential entrepreneurs, assisted IAO in preparing and distributing informational materials on technology, organized and managed meetings and seminars on technology transfer and entrepreneurship, identified new opportunities for technology transfer, and identified and implemented programs for the recognition of Laboratory entrepreneurs.

Not Available

1991-10-31

464

Factors associated with HIV testing history among Black men who have sex with men (BMSM) in Los Angeles County  

PubMed Central

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

Washington, Thomas Alex; Robles, Gabriel; Malotte, Kevin

2013-01-01

465

Paleoenvironmental and paleoclimatic investigations on Isla de los Estados, Argentina  

NASA Astrophysics Data System (ADS)

The expedition in November-December 2005 to Isla de los Estados (Staten Island) off the southeastern tip of South America was a cooperative venture between Lund University (LU) and Stockholm University (SU) in Sweden and the CADIC-CONICET Institute in Ushuaia, Argentina. The aim of the expedition was threefold: (1) to extend the Swedish paleoclimatic "ATLANTIS"-project (Greenland, Iceland, Faroe Islands, Azores, Grenada, Tristan da Cunha; PI S Björck) to the southern part of the South American continent, (2) to connect earlier glacial and climate history reconstructions from the Antarctic Peninsula to equivalents north of the Drake Passage in southernmost South America, and (3) to complement paleo-information available from the Tierra del Fuego mainland with information from Isla de los Estados. Focus was on two areas in the northern and north-western part of the island, Bahía Colnett and Bahia Crossley. Detailed geomorphologic and stratigraphic mapping of glacial deposits were combined with sampling sediments for OSL dating. To reconstruct the paleoclimatic development of Isla de los Estados since the last ice retreat, four main peat bog/lake sites were cored and sampled. In addition, living trees of Nothofagus and old logs preserved in the peat were sampled for dendrochronological and dendroclimatological studies. Preliminary results show that the deglaciation of the study area occurred before 16500 cal yr BP. Detailed multi- proxy analyses of the four sequences are under way and first results will be presented.

Björck, S.; Fernandez, M.; Hjort, C.; Ljung, K.; Martinez, O.; Möller, P.; Ponce, F.; Rabassa, J.; Roig, F.; Unkel, I.; Wohlfarth, B.

2007-05-01

466

Los Alamos, Toshiba probing Fukushima with cosmic rays  

SciTech Connect

Los Alamos National Laboratory has announced an impending partnership with Toshiba Corporation to use a Los Alamos technique called muon tomography to safely peer inside the cores of the Fukushima Daiichi reactors and create high-resolution images of the damaged nuclear material inside without ever breaching the cores themselves. The initiative could reduce the time required to clean up the disabled complex by at least a decade and greatly reduce radiation exposure to personnel working at the plant. Muon radiography (also called cosmic-ray radiography) uses secondary particles generated when cosmic rays collide with upper regions of Earth's atmosphere to create images of the objects that the particles, called muons, penetrate. The process is analogous to an X-ray image, except muons are produced naturally and do not damage the materials they contact. Muon radiography has been used before in imaginative applications such as mapping the interior of the Great Pyramid at Giza, but Los Alamos's muon tomography technique represents a vast improvement over earlier technology.

Morris, Christopher

2014-06-16

467

James L. Tuck Los Alamos ball lightning pioneer  

SciTech Connect

James Tuck was well known for starting the Project Sherwood group at Los Alamos Scientific Laboratory in 1952. This group was formed to study and develop concepts for controlled fusion energy. In his later years after retiring from Controlled Fusion Division, he continued research at Los Alamos on the topic of ball lightning. He traveled widely giving lectures on both observations of others and his own experimental efforts. He collected anecdotal observations obtained from those in his lecture audiences during his travels and from responses from newspaper articles where he asked for specific information from ball lightning observers. He finally cut off this collection of data when the number of responses became overwhelming. The author's primary publication on ball lightning was a short laboratory report. He planned on publishing a book on the subject but this was never completed before his death. Tuck focused his experimental effort on attempting to duplicate the production of plasma balls claimed to be observed in US Navy submarines when a switch was opened under overload conditions with battery power. During lunch breaks he made use of a Los Alamos N-division battery bank facility to mock up a submarine power pack and switch gear. This non-funded effort was abruptly terminated when an explosion occurred in the facility. An overview of Tuck's research and views will be given. The flavor Jim's personality as well as a ball produced with his experimental apparatus will be shown using video chips.

Baker, D.A.

1999-07-01

468

Los Alamos, Toshiba probing Fukushima with cosmic rays  

ScienceCinema

Los Alamos National Laboratory has announced an impending partnership with Toshiba Corporation to use a Los Alamos technique called muon tomography to safely peer inside the cores of the Fukushima Daiichi reactors and create high-resolution images of the damaged nuclear material inside without ever breaching the cores themselves. The initiative could reduce the time required to clean up the disabled complex by at least a decade and greatly reduce radiation exposure to personnel working at the plant. Muon radiography (also called cosmic-ray radiography) uses secondary particles generated when cosmic rays collide with upper regions of Earth's atmosphere to create images of the objects that the particles, called muons, penetrate. The process is analogous to an X-ray image, except muons are produced naturally and do not damage the materials they contact. Muon radiography has been used before in imaginative applications such as mapping the interior of the Great Pyramid at Giza, but Los Alamos's muon tomography technique represents a vast improvement over earlier technology.

Morris, Christopher

2014-06-25

469

33 CFR 110.214 - Los Angeles and Long Beach harbors, California.  

Code of Federal Regulations, 2012 CFR

...2012-07-01 false Los Angeles and Long Beach harbors, California. 110.214 Section 110.214 Navigation and Navigable...Grounds § 110.214 Los Angeles and Long Beach harbors, California. (a) General Regulations —(1) Anchorage...

2012-07-01

470

33 CFR 110.214 - Los Angeles and Long Beach harbors, California.  

...2014-07-01 false Los Angeles and Long Beach harbors, California. 110.214 Section 110.214 Navigation and Navigable...Grounds § 110.214 Los Angeles and Long Beach harbors, California. (a) General Regulations —(1) Anchorage...

2014-07-01

471

33 CFR 110.214 - Los Angeles and Long Beach harbors, California.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 false Los Angeles and Long Beach harbors, California. 110.214 Section 110.214 Navigation and Navigable...Grounds § 110.214 Los Angeles and Long Beach harbors, California. (a) General Regulations —(1) Anchorage...

2013-07-01

472

33 CFR 110.214 - Los Angeles and Long Beach harbors, California.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false Los Angeles and Long Beach harbors, California. 110.214 Section 110.214 Navigation and Navigable...Grounds § 110.214 Los Angeles and Long Beach harbors, California. (a) General Regulations —(1) Anchorage...

2011-07-01

473

33 CFR 110.214 - Los Angeles and Long Beach harbors, California.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Los Angeles and Long Beach harbors, California. 110.214 Section 110.214 Navigation and Navigable...Grounds § 110.214 Los Angeles and Long Beach harbors, California. (a) General Regulations —(1) Anchorage...

2010-07-01

474

From anonymity to public space : exploring the role of farmers markets in Los Angeles' public realm  

E-print Network

Los Angeles serves as a model of a city that evolved without traditional concerns of centrality and a coherent public realm. As Robert Fogelson points out, Los Angeles is "a city hooked on growth, deeply divided socially, ...

Paraschiv, Claudia (Claudia Cornelia)

2010-01-01

475

El Proyecto Sismico "LARSE" - Trabajando Hacia un Futuro con Mas Seguridad para Los Angeles  

USGS Publications Warehouse

La region de Los Angeles contiene una red de fallas activas, incluyendo muchas fallas por empuje que son profundas y no rompen la superficie de la tierra. Estas fallas ocultas incluyen la falla anteriormente desconocida que fue responsable por la devastacion que ocurrio durante el terremoto de Northridge en enero de 1994, el terremoto mas costoso en la historia de los Estados Unidos. El Experimento Sismico en la Region de Los Angeles (Los Angeles Region Seismic Experiment, LARSE), esta localizando los peligros ocultos de los terremotos debajo de la region de Los Angeles para mejorar la construccion de las estructuras que pueden apoyar terremotos que son inevitables en el futuro, y que ayudaran a los cientificos determinar donde occurira el sacudimento mas fuerte y poderoso.

Henyey, Thomas L.; Fuis, Gary S.; Benthien, Mark L.; Burdette, Thomas R.; Christofferson, Shari A.; Clayton, Robert W.; Criley, Edward E.; Davis, Paul M.; Hendley, James W., II; Kohler, Monica D.; Lutter, William J.; McRaney, John K.; Murphy, Janice M.; Okaya, David A.; Ryberg, Trond; Simila, Gerald W.; Stauffer, Peter H.

1999-01-01

476

Mapping Mortality and Geophysical Features During a Heat Wave in Los Angeles County, California  

NASA Astrophysics Data System (ADS)

With climate change, heat waves are predicted to increase in intensity and duration, particularly in areas where they have occurred previously. Human mortality increases during heat waves, and that increase may vary by community due to a variety of factors including differing geophysical and built environment features. In July 2006, California experienced a statewide heat wave that was unprecedented in duration, lasting 10 days in much of the state, and longer in some areas. To explore heat wave health impacts by community, we focused on Los Angeles County, selected for its urban density and diverse social and geographic landscapes. We calculated the ratio of deaths during the heat wave period (July 15 - Aug 1) to deaths in reference days from the non-heat wave period in the same summer. The raw and empirical Bayes smoothed rate ratios were mapped by census tract (average population size approximately 5000). We then used spatial scanning procedures to identify census tract clusters of high and low mortality. Onto the heat mortality maps, we overlaid such geographic and built environment characteristics as elevation, recordings from temperature monitors, building climate zone boundaries, and air conditioning use. In this presentation, we will discuss the potential relationship between mortality and geophysical and built environment features. In the future, we will expand this analysis statewide and share our findings with local stakeholders to explore factors which may make their communities more resilient (low health impact) or vulnerable (high health impact). Ultimately, knowledge of vulnerability and resiliency factors may inform future applied research and climate change mitigation and adaptation strategies. Authors: Lauren Joe, Daniel Smith, Svetlana Smorodinksy, Sumi Hoshiko, Martha Harnly Environmental Health Investigations Branch, California Department of Public Health

Joe, L.

2011-12-01

477

UNA APROXIMACI ÓN A LOS ACUERDOS AMBIENTALES COMO MECANISMO ALTERNATIVO DE POLÍTICA AMBIENTAL  

Microsoft Academic Search

ABSTRACT RESUMEN INTRODUCCIÓN 1. ASPECTOS DE FILOSOFÍA POLÍTICA DE LA POLÍTICA AMBIENTAL DE LOS ACUERDOS VOLUNTARIOS 2. QUÉ SE ENTIENDE POR ACUERDOS VOLUNTARIOS, QUÉ SON LOS ACUERDOS AMBIENTALES, CUÁLES SON SUS IMPLICACIONES ECONÓMICAS Y CUÁL ES SU TIPOLOGÍA 2.1. Acuerdos voluntarios y sus implicaciones económicas 2.1.1. Qué son los acuerdos ambientales. 2.1.2. Análisis económico de los acuerdos ambientales. 2.1.2.1. Acuerdos

Pablo Márquez Escobar

478

[Environmental factors in ALS].  

PubMed

ALS is likely to be a disorder of multifactorial origin. Among all the factors that may increase the risk of ALS, environmental ones are being studied for many years, but in the recent years, several advances have pointed to a new interest in their potential involvement in the disease process, especially for the cyanotoxin BMAA. Food containing BMAA has been found on Guam, a well-known focus of ALS/parkinsonism/dementia and high levels of BMAA have been identified into the brain of these patients. The BMAA cyanotoxin is potentially ubiquitous and have also been found into the food of patients who died from ALS both in Europe and USA. BMAA can be wrongly integrated into the protein structure during mRNA traduction, competing with serine. This may induce abnormal protein folding and a subsequent cell death. Heavy metals, such as lead or mercury may be directly toxic for neuronal cells. Several works have suggested an increased risk of ALS in individuals chronically exposed to these metals. Exposure to pesticides has been suggested to be linked to an increased risk of developing ALS. The mechanism of their toxicity is likely to be mediated by paraoxonases. These proteins are in charge of detoxifying the organism from toxins, and particularly organophosphates. To date, there are insufficient scientific data to suggest that exposure to electromagnetic fields may increase the risk of having ALS. We are particularly missing longitudinal cohorts to demonstrate that risk. PMID:24703731

Juntas-Morales, Raul; Pageot, Nicolas; Corcia, Philippe; Camu, William

2014-05-01

479

Human Factors in Training  

NASA Technical Reports Server (NTRS)

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.

Barshi, Immanuel; Byrne, Vicky; Arsintescu, Lucia; Connell, Erin

2010-01-01

480

Human Factors in Training  

NASA Technical Reports Server (NTRS)

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.

Barshi, Immanuel; Byme, Vicky; Arsintescu, Lucia

2008-01-01

481

Human Factors in Training  

NASA Technical Reports Server (NTRS)

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

Barshi, Immanuel; Byrne, Vicky; Arsintescu, Lucia; Connell, Erin; Sandor, Aniko

2009-01-01

482

Anelastic Attenuation and Elastic Scattering of Seismic Waves in the Los Angeles Region  

NASA Astrophysics Data System (ADS)

The accuracy of earthquake simulations needed for physics-based seismic hazard analysis depends on good information about crustal structure. For low-frequency (f < 0.3 Hz) simulations, the most important structural parameters are the seismic wave velocities, but as the frequencies increase, seismic wave attenuation becomes more important. We compare attenuation models that have been recently used in the CyberShake hazard model (Graves et al., 2011) and other simulation studies for the Los Angeles region (Olsen et al., 2009; Taborda & Bielak, 2013) with constraints from local earthquake data out to 10 Hz, which include those from Hauksson & Shearer's (2006) attenuation tomography as well as our own measurements. We show that the velocity-attenuation scaling relationship for shear waves employed by CyberShake (QS = 50VS, where VS is in km/s) provides a good approximation to the average crustal structure at f = 0.3 Hz, but it does not capture the lateral variations in QS at shallow depths. Moreover, this frequency-independent model is inconsistent with the high QS values observed throughout most of the crust at f > 1 Hz. The data indicate a frequency-dependent attenuation of the form QS ~ f ?, where 0.5 ? ? ? 0.8. Anomalously low QS factors are observed at very shallow depths, which can be explained by a combination of anelastic attenuation and elastic scattering. The scattering parameters are roughly consistent with small-scale, near-surface heterogeneities observed in well-logs and seismic reflection surveys in the Los Angeles basin. High-frequency scattering may also play a role in explaining Hauksson & Shearer's (2006) observation that the QP/QS ratio is anomalously low (~ unity). We summarize the observations in a new attenuation and scattering model for the CyberShake region that is laterally heterogeneous and frequency dependent.

Song, X.; Jordan, T. H.

2013-12-01

483

Correlates of perceived risk of developing cancer among African-Americans in South Los Angeles.  

PubMed

There are differences in cancer-risk perception among racial/ethnic groups that may affect health risk behaviors. Using a community partnered-participatory research approach, we conducted a survey on cancer screening, risk behaviors, and related knowledge/attitudes within 11 churches in South Los Angeles with predominantly African-American parishioners. This analysis examines correlates of perceived risk of developing cancer among 755 African American adults. Almost 15 % of participants indicated higher perceived risk for cancer compared to the average man/woman of the same age, 38 % indicated same risk, whereas 48 % perceived lower risk. Sixty-nine individuals (9 %) reported a cancer history and 63 % reported at least one blood relative with cancer. Controlling for demographic characteristics and healthcare access, participants who reported higher risk of cancer had higher level of cancer-related knowledge; were current and ex-smokers; had poorer health status; had a blood relative with cancer; had a cancer history; and had discussed their risk of cancer with their doctor. The bivariate association between high perceived cancer risk and lack of exercise and obesity disappeared after adjusting for demographic characteristics and perceived health status. Our data suggest that a substantial proportion of African Americans in South Los Angeles may underestimate their cancer risk. Additionally, lack of exercise and obesity are not recognized as independent cancer risk factors as much as smoking and personal and family history of cancer. Next steps will be to inform participating churches about our findings and explore their interest in taking steps to reduce health risk behaviors among their parishioners. PMID:24026303

Lucas-Wright, Anna; Bazargan, Mohsen; Jones, Loretta; Vadgama, Jaydutt V; Vargas, Roberto; Sarkissyan, Marianna; Smith, James; Yazdanshenas, Hamed; Maxwell, Annette E

2014-02-01

484

Correlates of Perceived Risk of Developing Cancer among African-Americans in South Los Angeles  

PubMed Central

Background There are differences in cancer-risk perception among racial/ethnic groups that may affect health risk behaviors. Methods Using a community partnered-participatory research approach, we conducted a survey on cancer screening, risk behaviors, and related knowledge/attitudes within 11 churches in South Los Angeles with predominantly African-American parishioners. This analysis examines correlates of perceived risk of developing cancer among 755African American adults. Results Almost 15% of participants indicated higher perceived risk for cancer compared to the average man/woman of the same age, 38% indicated same risk, whereas 48% perceived lower risk. Sixty-nine individuals (9%) reported a cancer history and 63% reported at least one blood relative with cancer. Controlling for demographic characteristics and healthcare access, participants who reported higher risk of cancer had higher level of cancer-related knowledge; were current and ex-smokers; had poorer health status; had a blood relative with cancer; had a cancer history; and had discussed their risk of cancer with their doctor. The bivariate association between high perceived cancer risk and lack of exercise and obesity disappeared after adjusting for demographic characteristics and perceived health status. Conclusions Our data suggest that a substantial proportion of African Americans in South Los Angeles may underestimate their cancer risk. Additionally, lack of exercise and obesity are not recognized as independent cancer risk factors as much as smoking and personal and family history of cancer. Next steps will be to inform participating churches about our findings and explore their interest in taking steps to reduce health risk behaviors among their parishioners. PMID:24026303

Lucas-Wright, Anna; Bazargan, Mohsen; Jones, Loretta; Vadgama, Jaydutt V.; Vargas, Roberto; Sarkissyan, Marianna; Smith, James; Yazdanshenas, Hamed; Maxwell, Annette E.

2013-01-01

485

The Los Angeles Community Development Bank: The Possible Pitfalls of Public-Private Partnerships  

Microsoft Academic Search

In response to the 1992 Los Angeles riots, the federal government, city and county officials, commercial banks and community leaders established the nonprofit Los Angeles Community Development Bank (L ACDB). This public-private partnership was a new development model, designed to spur economic growth in some of Los Angeles' most disadvantaged areas. The L ACDB was capitalized with $435 million from

Julia Sass Rubin; Gregory M. Stankiewicz

2001-01-01

486

El consumo privado en los paises de la OCDE: analisis comparativo y evolucion temporal  

Microsoft Academic Search

El estudio del gasto privado per capita realizado por los residentes en los paises de la OCDE es el objetivo de este trabajo. Se consideran los 12 grandes grupos de gasto, y se analizan en una doble vertiente: en cuanto a su evolucion y en cuanto a la comparacion entre paises. Se especifica un modelo econometrico para estimar el crecimiento

Matilde Arranz

2003-01-01

487

33 CFR 167.501 - In the approaches to Los Angeles/Long Beach: Precautionary area.  

Code of Federal Regulations, 2011 CFR

...In the approaches to Los Angeles/Long Beach: Precautionary area. 167.501 Section...In the approaches to Los Angeles/Long Beach: Precautionary area. (a) The precautionary...area enclosed by the Los Angeles-Long Beach breakwater and a line connecting Point...

2011-07-01

488

33 CFR 167.501 - In the approaches to Los Angeles/Long Beach: Precautionary area.  

Code of Federal Regulations, 2013 CFR

...In the approaches to Los Angeles/Long Beach: Precautionary area. 167.501 Section...In the approaches to Los Angeles/Long Beach: Precautionary area. (a) The precautionary...area enclosed by the Los Angeles-Long Beach breakwater and a line connecting Point...

2013-07-01

489

33 CFR 167.501 - In the approaches to Los Angeles/Long Beach: Precautionary area.  

...In the approaches to Los Angeles/Long Beach: Precautionary area. 167.501 Section...In the approaches to Los Angeles/Long Beach: Precautionary area. (a) The precautionary...area enclosed by the Los Angeles-Long Beach breakwater and a line connecting Point...

2014-07-01

490

33 CFR 167.501 - In the approaches to Los Angeles/Long Beach: Precautionary area.  

Code of Federal Regulations, 2012 CFR

...In the approaches to Los Angeles/Long Beach: Precautionary area. 167.501 Section...In the approaches to Los Angeles/Long Beach: Precautionary area. (a) The precautionary...area enclosed by the Los Angeles-Long Beach breakwater and a line connecting Point...

2012-07-01

491

33 CFR 167.501 - In the approaches to Los Angeles/Long Beach: Precautionary area.  

Code of Federal Regulations, 2010 CFR

...In the approaches to Los Angeles/Long Beach: Precautionary area. 167.501 Section...In the approaches to Los Angeles/Long Beach: Precautionary area. (a) The precautionary...area enclosed by the Los Angeles-Long Beach breakwater and a line connecting Point...

2010-07-01

492

contaminacin La contaminacin cruzada ocurre cuando la bacteria, o "los microbios", se pasan de un alimento  

E-print Network

microbios", se pasan de un alimento a otro. ¡Para evitar la contaminación cruzada, mantenga los alimentos separados! En el supermercado, mantenga la carne cruda separados de los demás alimentos en el carrito de las. Esto evita que los jugos se derramen sobre otros alimentos. Limpie el fregadero con agua caliente

493

LA CONCEPTUALIZACIÓN DE LOS SEGMENTOS TURÍSTICOS EN ANDALUCÍA: UNA BREVE APROXIMACIÓN  

Microsoft Academic Search

Viajar ha sido siempre una de las aspiraciones más firmemente deseadas del ser humano, aunque, a lo largo de la historia de la humanidad, los desplazamientos individuales y colectivos han estado motivados por distintas causas. Además, España se sitúa entre los destinos turísticos preferidos por los turistas extranjeros, aunque muy especialmente destaca Andalucía con una amplia oferta turística. Hasta hace

Cristina Castillo Rodríguez

2011-01-01

494

El Efecto De Los Atentados Del 11-s Sobre El Turismo En España  

Microsoft Academic Search

El objetivo del trabajo es analizar las consecuencias que los atentados del 11-S han tenido sobre los flujos turísticos en España. El marco teórico utilizado se inspira en el modelo del comportamiento racional del consumidor desarrollado por Enders et al. (1992), en el se incluye el estudio de los efectos del terrorismo sobre la actividad del sector turístico. El estudio

BERNARDÍ CABRER BORRÁS; DAVID IRANZO PÉREZ

2007-01-01

495

La transdisciplinariedad en los estudios de medios de comunicación en México  

Microsoft Academic Search

El presente artículo pretende aportar algunos elementos a un debate amplio sobre la construcción de los medios de comunicación como objetos de investigación. En un primer apartado se presenta el debate respecto del estatuto disciplinar, de los estudios de comunicación en general y de los estudios de medios en particular. En el segundo apartado se propone una visión crítica respecto

Magdalena Sofía

496

CQUIENES SON, QUE PIENSAN Y QUE SABEN LOS FUTUROS MAESTROS Y PROFESORES DE CIENCIAS?  

E-print Network

CQUIENES SON, QUE PIENSAN Y QUE SABEN LOS FUTUROS MAESTROS Y PROFESORES DE CIENCIAS?: UNA REVISION recientes sobre los futuros maestros y profesores de ciencias. Se analizan brevemente los planes de futuros profesores de ciencias de la enseñanzasecundaria. La principal conclusión que se desprcndc del

Campanario, Juan Miguel

497

48 Los Alamos Science Number 24 1996 In the midst of a cold Russian  

E-print Network

48 Los Alamos Science Number 24 1996 In the midst of a cold Russian winter, these Russian met any of Number 24 1996 Los Alamos Science 49 Lab-to-Lab Scientific Collaborations Between Los-related scientific experiment to be carried out on U.S. soil. The experiment, performed by Russian nuclear

498

UNIVERSIDAD DE CALIFORNIA, IRVINE Estatuto de Derechos de los Sujetos en Experimentacin  

E-print Network

UNIVERSIDAD DE CALIFORNIA, IRVINE Estatuto de Derechos de los Sujetos en Experimentación Los derechos que se detallan a continuación, son los de cada individuo a quien se le solicita que participe en un estudio de investigación. Usted tiene derecho a: 1. Que se le informe acerca de la naturaleza y

Loudon, Catherine

499

Statistical distribution of factors and factor images in factor analysis of medical image sequences  

NASA Astrophysics Data System (ADS)

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.

Buvat, I.; Benali, H.; Di Paola, R.

1998-06-01

500

Fibroblast growth factor 23.  

PubMed

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

Smith, Edward R; McMahon, Lawrence P; Holt, Stephen G

2014-03-01